Coronaviruses are widespread in nature and can infect mammals and poultry,making them a public health concern.Globally,prevention and control of emerging and re-emerging animal coronaviruses is a great challenge.The m...Coronaviruses are widespread in nature and can infect mammals and poultry,making them a public health concern.Globally,prevention and control of emerging and re-emerging animal coronaviruses is a great challenge.The mecha-nisms of virus-mediated immune responses have important implications for research on virus prevention and control.The antigenic epitope is a chemical group capable of stimulating the production of antibodies or sensitized lympho-cytes,playing an important role in antiviral immune responses.Thus,it can shed light on the development of diagnos-tic methods and novel vaccines.Here,we have reviewed advances in animal coronavirus antigenic epitope research,aiming to provide a reference for the prevention and control of animal and human coronaviruses.展开更多
Bovine coronavirus(BCoV)poses a significant threat to the global cattle industry,causing both respiratory and gastrointestinal infections in cattle populations.This necessitates the development of efficacious vaccines...Bovine coronavirus(BCoV)poses a significant threat to the global cattle industry,causing both respiratory and gastrointestinal infections in cattle populations.This necessitates the development of efficacious vaccines.While several inactivated and live BCoV vaccines exist,they are predominantly limited to calves.The immunization of adult cattle is imperative for BCoV infection control,as it curtails viral transmission to calves and ameliorates the impact of enteric and respiratory ailments across all age groups within the herd.This study presents an in silico methodology for devising a multiepitope vaccine targeting BCoV.The spike glycoprotein(S)and nucleocapsid(N)proteins,which are integral elements of the BCoV structure,play pivotal roles in the viral infection cycle and immune response.We constructed a remarkably effective multiepitope vaccine candidate specifically designed to combat the BCoV population.Using immunoinformatics technology,B-cell and T-cell epitopes were predicted and linked together using linkers and adjuvants to efficiently trigger both cellular and humoral immune responses in cattle.The in silico construct was characterized,and assessment of its physicochemical properties revealed the formation of a stable vaccine construct.After 3D modeling of the vaccine construct,molecular docking revealed a stable interaction with the bovine receptor bTLR4.Moreover,the viability of the vaccine’s high expression and simple purification was demonstrated by codon optimization and in silico cloning expression into the pET28a(+)vector.By applying immunoinformatics approaches,researchers aim to better understand the immune response to bovine coronavirus,discover potential targets for intervention,and facilitate the development of diagnostic tools and vaccines to mitigate the impact of this virus on cattle health and the livestock industry.We anticipate that the design will be useful as a preventive treatment for BCoV sickness in cattle,opening the door for further laboratory studies.展开更多
BACKGROUND Many studies have revealed a link between non-alcoholic fatty liver disease(NA-FLD)and coronavirus disease 2019(COVID-19),making understanding the relationship between these two conditions an absolute requi...BACKGROUND Many studies have revealed a link between non-alcoholic fatty liver disease(NA-FLD)and coronavirus disease 2019(COVID-19),making understanding the relationship between these two conditions an absolute requirement.AIM To provide a qualitative synthesis on the currently present data evaluating COVID-19 and NAFLD.METHODS This systematic review was conducted in accordance with the guidelines pro-vided by preferred reporting items for systematic reviews and meta-analyses and the questionnaire utilized the population,intervention,comparison,and outcome framework.The search strategy was run on three separate databases,PubMed/MEDLINE,Scopus,and Cochrane Central,which were systematically searched from inception until March 2024 to select all relevant studies.In addition,ClinicalTrials.gov,Medrxiv.org,and Google Scholar were searched to identify grey literature.RESULTS After retrieval of 11 studies,a total of 39282 patients data were pooled.Mortality was found in 11.5%and 9.4%of people in NAFLD and non-NAFLD groups.In all,23.2%of NAFLD patients and 22%of non-NAFLD admissions diagnosed with COVID-19 were admitted to the intensive care unit,with days of stay varying.Ventilatory support ranged from 5%to 40.5%in the NAFLD cohort and from 3.1%to 20%in the non-NAFLD cohort.The incidence of acute liver injury showed significance.Clinical improvement on days 7 and 14 between the two classifications was significant.Hospitalization stay ranged from 9.6 days to 18.8 days and 7.3 days to 16.4 days in the aforementioned cohorts respectively,with 73.3%and 76.3%of patients being discharged.Readmission rates varied.CONCLUSION Clinical outcomes except mortality consistently showed a worsening trend in patients with NAFLD and concomitant COVID-19.Further research in conducting prospective longitudinal studies is essential for a more powerful conclusion.展开更多
Background:Coronavirus disease 2019(COVID-19)is caused by severe acute respiratory syndrome coronavirus 2,which has led to deaths and currently lacks an efficient treatment.Despite studies suggesting the potential of ...Background:Coronavirus disease 2019(COVID-19)is caused by severe acute respiratory syndrome coronavirus 2,which has led to deaths and currently lacks an efficient treatment.Despite studies suggesting the potential of the Gegen Qinlian decoction(GQD)in preventing COVID-19,comprehensive analyses of its anti-COVID-19 potential are still lacking.Methods:GQD treatment was evaluated for its efficacy in ameliorating the early stage(24 hours)of lipopolysaccharide(LPS)-induced cytokine storm in vivo.Additionally,target genes of GQD were co-analyzed with COVID-19 signature genes to identify key ingredients and their pathways.Validation was also conducted using an LPS-induced macrophage model.Results:GQD treatment effectively ameliorated the early stage of LPS-induced cytokine storm in vivo.Key ingredients such as quercetin were found to be involved in multiple pathways,including inflammation,immunity,oxidative stress,cell proliferation,and apoptosis,through the AGE-RAGE signaling pathway and IL-17 signaling pathway.In the LPS-induced macrophage model,quercetin inhibited macrophage polarization(M1)and the secretion of inflammatory factors(IL-6,TNF-α,IL-17A).Conclusions:Our results indicate that GQD can be utilized in the treatment of cytokine storm induced by COVID-19 and has the potential to treat COVID-19 by suppressing the COVID-19 signature genes and macrophage polarization.展开更多
[Objectives]To investigate the clinical effect of Yinhuang Qingfei capsules in the treatment of asymptomatic and mild/common severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)infection.[Methods]A total of 362...[Objectives]To investigate the clinical effect of Yinhuang Qingfei capsules in the treatment of asymptomatic and mild/common severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)infection.[Methods]A total of 362 patients with SARS-CoV-2 infection were divided into the treatment group with 242 patients and control group with 120 patients according to their treatment regimen.The patients in the control group were given standard treatment regimen and those in the treatment group were given Yinhuang Qingfei capsules in addition to the treatment in the control group.The two groups were observed in terms of average length of hospital stay,mean time for nucleic acid clearance,TCM syndrome score,and progression to severe/critical illness,and clinical outcome was compared between the two groups.[Results]There was a significant difference in the overall response rate between the treatment group and the control group[97.52%(236/242)vs 95.00%(114/120),P<0.05].Compared with the control group,the treatment group had significantly shorter length of hospital stay and time for nucleic acid clearance(P<0.05).After 7 days of treatment,both groups had a significant change in TCM syndrome score,and there was a significant difference in TCM syndrome score between the two groups(P<0.05);after 15 days of treatment,both groups had a TCM syndrome score of 0.Progression to severe/critical illness was not observed in either group.[Conclusions]Compared with the standard treatment regimen alone,standard treatment regimen combined with Yinhuang Qingfei capsules can effectively shorten the length of hospital stay and time for nucleic acid clearance and improve TCM symptoms in patients with asymptomatic and mild/common SARS-CoV-2 infection.展开更多
Objective:To discuss and analyze the causes of adverse reactions caused by the inactivated novel coronavirus vaccine(Vero cells),and to propose methods of prevention and care.Methods:A questionnaire was used to random...Objective:To discuss and analyze the causes of adverse reactions caused by the inactivated novel coronavirus vaccine(Vero cells),and to propose methods of prevention and care.Methods:A questionnaire was used to randomly select 229 adults who were vaccinated with the inactivated novel coronavirus vaccine(Vero cells)at Xi’an People’s Hospital(Xi’an Fourth Hospital).The adverse reactions were statistically analyzed.Results:Among the 229 adults vaccinated with the inactivated novel coronavirus vaccine(Vero cells),30 experienced vaccination reactions.The main reaction was local induration at the inoculation site,and dizziness was the primary systemic symptom.Conclusion:To reduce the incidence of adverse reactions to the inactivated novel coronavirus vaccine(Vero cells),it is necessary to effectively evaluate the health status of adults before vaccination,select the correct vaccination site,and strictly implement the rules of 3-inspections,7-checks,and 1-verification.Standardizing the operation process and providing thorough health education after vaccination can effectively reduce the occurrence of adverse reactions.展开更多
Objective:The novel coronavirus(severe acute respiratory syndrome coronavirus 2)has been spreading worldwide since December 2019,posing a serious danger to human health and socioeconomic development.A large number of ...Objective:The novel coronavirus(severe acute respiratory syndrome coronavirus 2)has been spreading worldwide since December 2019,posing a serious danger to human health and socioeconomic development.A large number of clinical trials have revealed that coronavirus disease 2019(COVID-19)results in multi-organ damage including the urogenital system.This study aimed to explore the potential mechanisms of genitourinary damage associated with COVID-19 infection through bioinformatics and molecular simulation analysis.Methods:We used multiple publicly available databases to explore the expression patterns of angiotensin-converting enzyme 2(ACE2),transmembrane serine protease 2(TMPRSS2),and CD147 in major organs in the healthy and disease-specific populations,particularly the genitourinary organs.Single-cell RNA sequencing was used to analyze the cell-specific expression patterns of ACE2,TMPRSS2,CD147,cytokine receptors,and cytokine interacting proteins in genitourinary organs,such as the bladder,kidney,prostate,and testis.Additionally,gene set enrichmentanalysis was used to investigate the relationship between testosterone levels and COVID-19 vulnerability in patients with prostate cancer.Results:The results revealed that ACE2,TMPRSS2,and CD147 were highly expressed in normal urogenital organs.Then,they were also highly expressed in multiple tumors and chronic kidney diseases.Additionally,ACE2,TMPRSS2,and CD147 were significantly expressed in a range of cells in urogenital organs according to single-cell RNA sequencing.Cytokine receptors and cytokine interacting proteins,especially CCL2,JUN,and TIMP1,were commonly highly expressed in urogenital organs.Finally,gene set enrichment analysis results showed that high testosterone levels in prostate cancer patients were significantly related to the JAK-STAT signaling pathway and the Toll-like receptor signaling pathway which were associated with COVID-19.Conclusion:Our study provides new insights into the potential mechanisms of severe acute respiratory syndrome coronavirus 2 damage to urogenital organs from multiple perspectives,which may draw the attention of urologists to COVID-19 and contribute to the development of targeted drugs.展开更多
Objective:This study aimed to investigate the impact of COVID-19 vaccination on the clinical characteristics and care needs of infected children during a high-intensity pandemic and to measure the potential effects of...Objective:This study aimed to investigate the impact of COVID-19 vaccination on the clinical characteristics and care needs of infected children during a high-intensity pandemic and to measure the potential effects of vaccination on children's health status and healthcare utilization.Methods:A sample of 903 children who had recently been infected with the novel coronavirus and came to our hospital's emergency department from January 11 to January 30,2023,was used as the research object in this retrospective study.The questionnaire on unknown coronavirus infection was filled out anonymously,and SPSS20.0 software was used for statistical data analysis.Results:The baseline conditions of 903 subjects were studied,including 505 males,accounting for 55.92%,and 398 females,accounting for 44.08%.The age of infection was mainly concentrated in preschool children(26.02%)and school-age children(38.76%).Regarding vaccination,561 cases were vaccinated,accounting for 62.13%.Among them,37 children received one dose of vaccine,accounting for 4.1%,463 children received two doses,accounting for 51.27%,and 61 children received three doses,accounting for 6.76%.For previous allergic diseases,180 children had a history of allergic diseases,accounting for 19.93%.Regarding sources of infection,the most common source was someone at home,accounting for 82.61%.Vaccination can effectively reduce the fever of children infected with the new coronavirus,the number of outpatient and emergency doctor visits,and the risk of hospitalization.In addition,regarding treatment,children in the vaccinated group were more likely to be treated at home,and the types of drugs used also differed from those in the non-vaccinated group.However,the vaccination group has a relatively high incidence of symptoms such as sore throat,cough,abnormal sense of smell and taste,muscle soreness,and headache.However,these are mild clinical symptoms and do not affect children's physical health and development.Parental care needs for children infected with COVID-19 are disparate,and parents of vaccinated children have lower proportions of needs for child care.Conclusion:Vaccination positively impacts the clinical outcomes of children infected with COVID-19 and their parents'well-being.展开更多
The purpose of this review is to identify prevalent trends and risk factors in depression,anxiety,and eating disorders in the adolescent population in the post coronavirus disease 2019(COvID-19)scenario.We examined th...The purpose of this review is to identify prevalent trends and risk factors in depression,anxiety,and eating disorders in the adolescent population in the post coronavirus disease 2019(COvID-19)scenario.We examined the literature published on adolescent mental health since the COVID-19 pandemic.We chose to summarize studies published from 2019 to 2022,using bibliographic search tools.We developed criteria for selecting articles for our review using diagnostic indicators and keywords.Mental health conditions such as depression,anxiety and eating disorders are commonly prevalent in this population and have shown increasing rates in the past three years.Some risk factors associated with these diagnoses include reduction in social interaction,increased workloads,routine shifts,sleep quality,social media usage and parental involvement.Routines,sleep cycles,physical activity,and social media should all be considered as a part of prevention in this population.Approaches that seem to be successful include maintaining social ties and avoiding negative social media usage with harmful content.Increased global public awareness,as well as parental awareness,through media campaigns,is critical to slowing the spread of mental health challenges in adolescents and teenagers in the post-COvID-19 era.展开更多
Following the outbreak of coronavirus disease 2019(COVID-19),several severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)-related coronaviruses have been discovered.Previous research has identified a novel line...Following the outbreak of coronavirus disease 2019(COVID-19),several severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)-related coronaviruses have been discovered.Previous research has identified a novel lineage of SARS-CoV-2-related CoVs in bats,including RsYN04,which recognizes human angiotensin-converting enzyme 2(ACE2)and thus poses a potential threat to humans.Here,we screened the binding of the RsYN04receptor-binding domain(RBD)to ACE2 orthologs from 52animal species and found that the virus showed a narrower ACE2-binding spectrum than SARS-CoV-2.However,the presence of the T484W mutation in the RsYN04 RBD broadened its range.We also evaluated 44 SARS-CoV-2antibodies targeting seven epitope communities in the SARS-CoV-2 RBD,together with serum obtained from COVID-19 convalescents and vaccinees,to determine their cross-reaction against RsYN04.Results showed that no antibodies,except for the RBD-6 and RBD-7 classes,bound to the RsYN04 RBD,indicating substantial immune differences from SARS-CoV-2.Furthermore,the structure of the RsYN04 RBD in complex with cross-reactive antibody S43 in RBD-7 revealed a potently broad epitope for the development of therapeutics and vaccines.Our findings suggest RsYN04 and other viruses belonging to the same clade have the potential to infect several species,including humans,highlighting the necessity for viral surveillance and development of broad anticoronavirus countermeasures.展开更多
Objective:To explore the impact of the coronavirus disease 2019(COVID-19)pandemic on the training experiences of urology residents in Indonesia.Methods:A cross-sectional study using a web-based questionnaire(SurveyMon...Objective:To explore the impact of the coronavirus disease 2019(COVID-19)pandemic on the training experiences of urology residents in Indonesia.Methods:A cross-sectional study using a web-based questionnaire(SurveyMonkey)involved all registered urology residents in Indonesia.The questionnaire was structured in Bahasa Indonesia,composed of 28 questions,and divided into three sections:demographic characteristics,current daily activities,and opinions regarding training experiences during the COVID-19 outbreak.The survey was distributed to all respondents via chief of residents in each urology center from May 26,2020 to Jun 2,2020.Results:Of the total 247 registered urology residents,243 were eligible for the study.The response and completeness rate for this study were 243/243(100%).The median age of respondents was 30(range:24e38)years old,and 92.2%of them were male.Among them,6(2.5%)respondents were confirmed as COVID-19 positive.A decrease in residents’involvement in clinical and surgical activities was distinguishable in endourological and open procedures.Most educational activities were switched to web-based video conferences,while others opted for the in-person method.Smart learning methods,such as joining a national or international speaker webinar or watching a recorded video,were used by 93.8%and 80.7%of the respondents,respectively.The respondents thought that educational activities using web-based video conferences and smart learning methods were effective methods of learning.Overall,the respondents felt unsure whether training experiences during the COVID-19 pandemic were comparable to the respective period before.Conclusion:The COVID-19 pandemic negatively affected urology residents’training experiences.However,it also opened up new possibilities for incorporating new learning methodologies in the future.展开更多
Considerable resources,technology,and efforts are being utilized worldwide to eradicate the coronavirus.Although certain measures taken to prevent the further spread of the disease have been successful,efforts to comp...Considerable resources,technology,and efforts are being utilized worldwide to eradicate the coronavirus.Although certain measures taken to prevent the further spread of the disease have been successful,efforts to completely wipe out the coronavirus have been insufficient.Coronavirus patients have symptoms similar to those of chest Tuberculosis(TB)or pneumonia patients.Chest tuberculosis and coronavirus are similar because both diseases affect the lungs,cause coughing and produce an irregular respiratory system.Both diseases can be confirmed through X-ray imaging.It is a difficult task to diagnose COVID-19,as coronavirus testing kits are neither excessively available nor very reliable.In addition,specially trained staff and specialized equipment in medical laboratories are needed to carry out a coronavirus test.However,most of the staff is not fully trained,and several laboratories do not have special equipment to perform a coronavirus test.Therefore,hospitals and medical staff are under stress to meet necessary workloads.Most of the time,these staffs confuse the tuberculosis or pneumonia patient with a coronavirus patient,as these patients present similar symptoms.To meet the above challenges,a comprehensive solution based on a deep learning model has been proposed to distinguish COVID-19 patients from either tuberculosis patients or healthy people.The framework contains a fusion of Visual Geometry Group from Oxford(VGG16)and Residual Network(ResNet18)algorithms as VGG16 contains robust convolutional layers,and Resnet18 is a good classifier.The proposed model outperforms other machine learning and deep learning models as more than 94%accuracy for multiclass identification has been achieved.展开更多
In early December 2019,a new virus named“2019 novel coronavirus(2019-nCoV)”appeared in Wuhan,China.The disease quickly spread worldwide,resulting in the COVID-19 pandemic.In the currentwork,we will propose a novel f...In early December 2019,a new virus named“2019 novel coronavirus(2019-nCoV)”appeared in Wuhan,China.The disease quickly spread worldwide,resulting in the COVID-19 pandemic.In the currentwork,we will propose a novel fuzzy softmodal(i.e.,fuzzy-soft expert system)for early detection of COVID-19.Themain construction of the fuzzy-soft expert systemconsists of five portions.The exploratory study includes sixty patients(i.e.,fortymales and twenty females)with symptoms similar to COVID-19 in(Nanjing Chest Hospital,Department of Respiratory,China).The proposed fuzzy-soft expert systemdepended on five symptoms of COVID-19(i.e.,shortness of breath,sore throat,cough,fever,and age).We will use the algorithm proposed by Kong et al.to detect these patients who may suffer from COVID-19.In this way,the present system is beneficial to help the physician decide if there is any patient who has COVID-19 or not.Finally,we present the comparison between the present system and the fuzzy expert system.展开更多
BACKGROUND An important area of effective control of the coronavirus disease 19(COVID-19)pandemic is the study of the pathogenic features of severe acute respiratory syndrome coronavirus 2 infection,including those ba...BACKGROUND An important area of effective control of the coronavirus disease 19(COVID-19)pandemic is the study of the pathogenic features of severe acute respiratory syndrome coronavirus 2 infection,including those based on assessing the state of the intestinal microbiota and permeability.AIM To study the clinical features of the new COVID-19 in patients with mild and moderate severity at the stage of hospitalization,to determine the role of hepatobiliary injury,intestinal permeability disorders,and changes in the qualitative and quantitative composition of the microbiota in the development of systemic inflammation in patients with COVID-19.METHODS The study was performed in 80 patients with COVID-19,with an average age of 45 years,19 of whom had mild disease,and 61 had moderate disease severity.The scope of the examination included traditional clinical,laboratory,biochemical,instrumental,and radiation studies,as well as original methods for studying microbiota and intestinal permeability.RESULTS The clinical course of COVID-19 was studied,and the clinical and biochemical features,manifestations of systemic inflammation,and intestinal microbiome changes in patients with mild and moderate severity were identified.Intestinal permeability characteristics against the background of COVID-19 were evaluated by measuring levels of proinflammatory cytokines,insulin,faecal calprotectin,and zonulin.CONCLUSION This study highlights the role of intestinal permeability and microbiota as the main drivers of gastroenterological manifestations and increased COVID-19 severity.展开更多
Artificial intelligence is demonstrated by machines,unlike the natural intelligence displayed by animals,including humans.Artificial intelligence research has been defined as the field of study of intelligent agents,w...Artificial intelligence is demonstrated by machines,unlike the natural intelligence displayed by animals,including humans.Artificial intelligence research has been defined as the field of study of intelligent agents,which refers to any system that perceives its environment and takes actions that maximize its chance of achieving its goals.The techniques of intelligent computing solve many applications of mathematical modeling.The researchworkwas designed via a particularmethod of artificial neural networks to solve the mathematical model of coronavirus.The representation of the mathematical model is made via systems of nonlinear ordinary differential equations.These differential equations are established by collecting the susceptible,the exposed,the symptomatic,super spreaders,infection with asymptomatic,hospitalized,recovery,and fatality classes.The generation of the coronavirus model’s dataset is exploited by the strength of the explicit Runge Kutta method for different countries like India,Pakistan,Italy,and many more.The generated dataset is approximately used for training,validation,and testing processes for each cyclic update in Bayesian Regularization Backpropagation for the numerical treatment of the dynamics of the desired model.The performance and effectiveness of the designed methodology are checked through mean squared error,error histograms,numerical solutions,absolute error,and regression analysis.展开更多
The coronavirus disease 2019(COVID-19)pandemic caused by the severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)has had a significant impact on the lives of millions of people,especially those with other conco...The coronavirus disease 2019(COVID-19)pandemic caused by the severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)has had a significant impact on the lives of millions of people,especially those with other concomitant diseases,such as chronic liver diseases.To date,seven coronaviruses have been identified to infect humans.The main site of pathological action of these viruses is lung tissue.However,a substantial number of studies have proven that SARSCoV-2 shows affinity towards several organs,including the gastrointestinal tract and the liver.The current state of evidence points to several proposed mechanisms of liver injury in patients with COVID-19 and their combination.Liver impairment is considered to be the result of the direct effect of the virus on the hepatic tissue cells,a systemic reaction consisting of inflammation,hypoxia and cytokine storm,drug-induced liver injury,with the possible contribution of a perturbed gut-liver axis.Reactivation of chronic hepatic disease could be another factor for liver impairment in patients with SARS-CoV-2 infection.Acute-onchronic liver failure(ACLF)is a relatively new syndrome that occurs in 10%–30%of all hospitalized patients with chronic liver disease.It is crucial to recognize high-risk patients due to the increased morbidity and mortality in these cases.Several published studies have reported virus infection as a trigger factor for ACLF.However,to date,there are few relevant studies describing the presence of ACLF in patients with acute SARS-CoV-2 infection.In this minireview we summarize the current state of knowledge regarding the relation between ACLF and acute SARS-CoV-2 infection.展开更多
Objective:Cold exposure has been suggested to be advantageous for the spread and infection of the coronavirus,and the gut microbiota influences the severity of the infection by modulating host inflammatory and immune ...Objective:Cold exposure has been suggested to be advantageous for the spread and infection of the coronavirus,and the gut microbiota influences the severity of the infection by modulating host inflammatory and immune responses.However,it remains unclear whether the promotion of viral infection through cold exposure is linked to the gut microbiota.Methods:In this study,we performed an unbiased analysis of gut microbiota,serum,and lung tissue metabolome changes in cold-exposed and virus-infected mice,alongside the assessment of immune-inflammatory indicators in serum and lung tissue.Results:The results revealed that both cold exposure and viral infection significantly decreased the percentage of peripheral blood lymphocytes(CD4^(+)T cells,CD8^(+)T cells,and B cell)and increased the expression of inflammatory factors(IL-6,IL-1β,TNF-α,and IFN-γ).Meanwhile,cold exposure disrupted the homeostasis of gut microbiota,elevating the abundance of pathogenic bacteria(Staphylococcus)and diminishing the abundance of beneficial bacteria(Alistipes).Notably,in virus-infected mice exposed to a cold environment,the reduction in the abundance of beneficial bacteria Alistipes was more pronounced than in cases of single virus infection and cold exposure.Analysis of altered serum and lung tissue metabolites highlighted glycerophospholipids,fatty acids,and eicosanoids as the most affected metabolites by cold exposure.These metabolites,closely associated with virus infection,exhibited a significant correlation with immune-inflammatory indicators.Conclusion:These findings establish a mechanistic connection between cold exposure and virus infection,suggesting that cold exposure-induced dysregulation of gut microbiota and lipid metabolism diminishes host immunity,promoting virus infection.展开更多
Background:Understanding and minimizing existing global coronavirus disease 2019(COVID-19)vaccination disparities is critical to global population health and eliminating health inequities.The study aims to investigate...Background:Understanding and minimizing existing global coronavirus disease 2019(COVID-19)vaccination disparities is critical to global population health and eliminating health inequities.The study aims to investigate the disparities of vaccination coverage and progression and the associated economic and educational determinants to inform global COVID-19 vaccination strategies.Methods:COVID-19 vaccination coverage data from 206 countries used in the study were derived from“Our World in Data”website.After obtaining the vaccination coverage indicators,we fitted the progression indicators for vaccination.Correlation and multiple linear regression analysis were used to examine the effects of gross domestic product(GDP)per capita,Gini index,education,and their interactions on the coverage and progression of the COVID-19 vaccination.Results:The coverage of COVID-19 vaccination ranged from less than 30 doses to more than 150 doses per hundred people,from less than 15%to more than 75%for proportion of people vaccinated,from less than 15%to more than 60%for proportion of people fully vaccinated.Similarly,the progression of vaccination ranged from less than 0.1 to more than 0.6 for progression of total number of doses,from less than 0.1 to more than 0.3 for progression of proportion of people vaccinated,and from less than 0.1 to more than 0.4 for progression of proportion of people fully vaccinated.GDP per capita and education were positively associated with the coverage and progression,while Gini index was negatively associated with the coverage and progression.Negative interaction between GDP per capita and education was also observed for coverage(0=-0.012 to-0.011,P<0.05)and progression(0=-0.012 to-0.011,P<0.05).Conclusions:Substantial geographic disparities existed for the coverage and progression of COVID-19 vaccination.展开更多
Objectives:The present study aims to assess the prevalence and predictors of smartphone addiction and insomnia among nurses working in the outpatient department(OPD)after the second wave of the coronavirus disease 201...Objectives:The present study aims to assess the prevalence and predictors of smartphone addiction and insomnia among nurses working in the outpatient department(OPD)after the second wave of the coronavirus disease 2019(COVID-19)pandemic.Materials and Methods:A descriptive,cross-sectional study was carried out among 117 OPD nurses between October and December 2021 using a purposive sampling technique.Two self-reported standardized scales,the Smartphone Addiction Scale-ShortVersion and Insomnia Severity Index were used.Kolmogorov–Smirnov test,Mann–Whitney U,and Kruskal–Wallis Htest were used.Pearson’s correlation and Scatter plot were used to determine the relationship between the study variables.A stepwise multiple linear regression analysis was also performed.Results:The majority of participants had slight smartphone addiction(78.6%)and suffered from sub-threshold to severe forms of insomnia(73.5%).A significant mild positive correlation was found between smartphone addiction and insomnia(r=0.195,P<0.05).Stepwise multivariate logistic regression analysis predicted factors such as female gender and exposure to smartphones for more than 5 years influencing smartphone addiction.A strong influence of exposure to the smartphone for more than 5 years was found on insomnia severity.Conclusion:Smartphone addiction and insomnia were identified problems among nurses working in the OPD after the second wave of the COVID-19 pandemic,requiring an urgent need to identify and manage various factors responsible for smartphone addiction and insomnia such as female gender and years of exposure to smartphones.展开更多
Objective:Clinical manifestation of the inflammatory process in its relation to biochemical markers(total cysteine[Cys],cysteine-glycine[CysGly],glutathione[GSH],glutamate-cysteine[Glu-Cys],homocysteine[Hcy],the ratio...Objective:Clinical manifestation of the inflammatory process in its relation to biochemical markers(total cysteine[Cys],cysteine-glycine[CysGly],glutathione[GSH],glutamate-cysteine[Glu-Cys],homocysteine[Hcy],the ratio of reduced to oxidized glutathione[GSH/GSSG],the ratio of reduced to oxidized cysteine[CySH/CySS],malondialdehyde-oxidized low-density lipoproteins[MDA-oxLDL])has been studied in patients with coronavirus disease 2019(COVID-19).Material and methods:48 patients with mild to severe COVID-19 and 20 healthy volunteers were included in our research.The participants were divided into 4 experimental groups according to inflammation intensity estimated based on the serum levels of interleukin 6(IL-6).Results:All 4 groups showed the prevalence of male patients and elevated serum levels of IL-6(by 54.6%).There was no comorbidity in patients with mild COVID-19(nasopharyngitis symptoms)and in healthy control subjects.50%of patients with lung damage had accompanying diseases.Alterations of aminoethyl metabolism were detected in COVID-19 patients:as reflected by the decreased levels of Cys,CysGly,and Glu-Cys and the increased levels of GSH as compared to the control group.Conclusion:Elevation of IL-6 over 7.5 pg/mL was associated with decreased GSH/GSSG and CySH/CySS ratios indicating enhanced oxidative stress and was followed by protein oxidation,specifically MDA-oxLDL.展开更多
基金supported by the Natural Science Foundation of Zhejiang Province(Q23C180006)the Zhejiang A&F University Talent Initiative Project(118-203402005901).
文摘Coronaviruses are widespread in nature and can infect mammals and poultry,making them a public health concern.Globally,prevention and control of emerging and re-emerging animal coronaviruses is a great challenge.The mecha-nisms of virus-mediated immune responses have important implications for research on virus prevention and control.The antigenic epitope is a chemical group capable of stimulating the production of antibodies or sensitized lympho-cytes,playing an important role in antiviral immune responses.Thus,it can shed light on the development of diagnos-tic methods and novel vaccines.Here,we have reviewed advances in animal coronavirus antigenic epitope research,aiming to provide a reference for the prevention and control of animal and human coronaviruses.
文摘Bovine coronavirus(BCoV)poses a significant threat to the global cattle industry,causing both respiratory and gastrointestinal infections in cattle populations.This necessitates the development of efficacious vaccines.While several inactivated and live BCoV vaccines exist,they are predominantly limited to calves.The immunization of adult cattle is imperative for BCoV infection control,as it curtails viral transmission to calves and ameliorates the impact of enteric and respiratory ailments across all age groups within the herd.This study presents an in silico methodology for devising a multiepitope vaccine targeting BCoV.The spike glycoprotein(S)and nucleocapsid(N)proteins,which are integral elements of the BCoV structure,play pivotal roles in the viral infection cycle and immune response.We constructed a remarkably effective multiepitope vaccine candidate specifically designed to combat the BCoV population.Using immunoinformatics technology,B-cell and T-cell epitopes were predicted and linked together using linkers and adjuvants to efficiently trigger both cellular and humoral immune responses in cattle.The in silico construct was characterized,and assessment of its physicochemical properties revealed the formation of a stable vaccine construct.After 3D modeling of the vaccine construct,molecular docking revealed a stable interaction with the bovine receptor bTLR4.Moreover,the viability of the vaccine’s high expression and simple purification was demonstrated by codon optimization and in silico cloning expression into the pET28a(+)vector.By applying immunoinformatics approaches,researchers aim to better understand the immune response to bovine coronavirus,discover potential targets for intervention,and facilitate the development of diagnostic tools and vaccines to mitigate the impact of this virus on cattle health and the livestock industry.We anticipate that the design will be useful as a preventive treatment for BCoV sickness in cattle,opening the door for further laboratory studies.
文摘BACKGROUND Many studies have revealed a link between non-alcoholic fatty liver disease(NA-FLD)and coronavirus disease 2019(COVID-19),making understanding the relationship between these two conditions an absolute requirement.AIM To provide a qualitative synthesis on the currently present data evaluating COVID-19 and NAFLD.METHODS This systematic review was conducted in accordance with the guidelines pro-vided by preferred reporting items for systematic reviews and meta-analyses and the questionnaire utilized the population,intervention,comparison,and outcome framework.The search strategy was run on three separate databases,PubMed/MEDLINE,Scopus,and Cochrane Central,which were systematically searched from inception until March 2024 to select all relevant studies.In addition,ClinicalTrials.gov,Medrxiv.org,and Google Scholar were searched to identify grey literature.RESULTS After retrieval of 11 studies,a total of 39282 patients data were pooled.Mortality was found in 11.5%and 9.4%of people in NAFLD and non-NAFLD groups.In all,23.2%of NAFLD patients and 22%of non-NAFLD admissions diagnosed with COVID-19 were admitted to the intensive care unit,with days of stay varying.Ventilatory support ranged from 5%to 40.5%in the NAFLD cohort and from 3.1%to 20%in the non-NAFLD cohort.The incidence of acute liver injury showed significance.Clinical improvement on days 7 and 14 between the two classifications was significant.Hospitalization stay ranged from 9.6 days to 18.8 days and 7.3 days to 16.4 days in the aforementioned cohorts respectively,with 73.3%and 76.3%of patients being discharged.Readmission rates varied.CONCLUSION Clinical outcomes except mortality consistently showed a worsening trend in patients with NAFLD and concomitant COVID-19.Further research in conducting prospective longitudinal studies is essential for a more powerful conclusion.
基金supported by the National Natural Science Foundation of China(82202364)the National Key Research and Development Program of China(2020YFC2005300)Traditional Chinese Medicine Science and Technology Project of Jiangsu Province(QN202212).
文摘Background:Coronavirus disease 2019(COVID-19)is caused by severe acute respiratory syndrome coronavirus 2,which has led to deaths and currently lacks an efficient treatment.Despite studies suggesting the potential of the Gegen Qinlian decoction(GQD)in preventing COVID-19,comprehensive analyses of its anti-COVID-19 potential are still lacking.Methods:GQD treatment was evaluated for its efficacy in ameliorating the early stage(24 hours)of lipopolysaccharide(LPS)-induced cytokine storm in vivo.Additionally,target genes of GQD were co-analyzed with COVID-19 signature genes to identify key ingredients and their pathways.Validation was also conducted using an LPS-induced macrophage model.Results:GQD treatment effectively ameliorated the early stage of LPS-induced cytokine storm in vivo.Key ingredients such as quercetin were found to be involved in multiple pathways,including inflammation,immunity,oxidative stress,cell proliferation,and apoptosis,through the AGE-RAGE signaling pathway and IL-17 signaling pathway.In the LPS-induced macrophage model,quercetin inhibited macrophage polarization(M1)and the secretion of inflammatory factors(IL-6,TNF-α,IL-17A).Conclusions:Our results indicate that GQD can be utilized in the treatment of cytokine storm induced by COVID-19 and has the potential to treat COVID-19 by suppressing the COVID-19 signature genes and macrophage polarization.
基金Supported by the Science and Medicine Joint Fund Project of Natural Science Foundation of Hunan Province(2022JJ80001).
文摘[Objectives]To investigate the clinical effect of Yinhuang Qingfei capsules in the treatment of asymptomatic and mild/common severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)infection.[Methods]A total of 362 patients with SARS-CoV-2 infection were divided into the treatment group with 242 patients and control group with 120 patients according to their treatment regimen.The patients in the control group were given standard treatment regimen and those in the treatment group were given Yinhuang Qingfei capsules in addition to the treatment in the control group.The two groups were observed in terms of average length of hospital stay,mean time for nucleic acid clearance,TCM syndrome score,and progression to severe/critical illness,and clinical outcome was compared between the two groups.[Results]There was a significant difference in the overall response rate between the treatment group and the control group[97.52%(236/242)vs 95.00%(114/120),P<0.05].Compared with the control group,the treatment group had significantly shorter length of hospital stay and time for nucleic acid clearance(P<0.05).After 7 days of treatment,both groups had a significant change in TCM syndrome score,and there was a significant difference in TCM syndrome score between the two groups(P<0.05);after 15 days of treatment,both groups had a TCM syndrome score of 0.Progression to severe/critical illness was not observed in either group.[Conclusions]Compared with the standard treatment regimen alone,standard treatment regimen combined with Yinhuang Qingfei capsules can effectively shorten the length of hospital stay and time for nucleic acid clearance and improve TCM symptoms in patients with asymptomatic and mild/common SARS-CoV-2 infection.
文摘Objective:To discuss and analyze the causes of adverse reactions caused by the inactivated novel coronavirus vaccine(Vero cells),and to propose methods of prevention and care.Methods:A questionnaire was used to randomly select 229 adults who were vaccinated with the inactivated novel coronavirus vaccine(Vero cells)at Xi’an People’s Hospital(Xi’an Fourth Hospital).The adverse reactions were statistically analyzed.Results:Among the 229 adults vaccinated with the inactivated novel coronavirus vaccine(Vero cells),30 experienced vaccination reactions.The main reaction was local induration at the inoculation site,and dizziness was the primary systemic symptom.Conclusion:To reduce the incidence of adverse reactions to the inactivated novel coronavirus vaccine(Vero cells),it is necessary to effectively evaluate the health status of adults before vaccination,select the correct vaccination site,and strictly implement the rules of 3-inspections,7-checks,and 1-verification.Standardizing the operation process and providing thorough health education after vaccination can effectively reduce the occurrence of adverse reactions.
文摘Objective:The novel coronavirus(severe acute respiratory syndrome coronavirus 2)has been spreading worldwide since December 2019,posing a serious danger to human health and socioeconomic development.A large number of clinical trials have revealed that coronavirus disease 2019(COVID-19)results in multi-organ damage including the urogenital system.This study aimed to explore the potential mechanisms of genitourinary damage associated with COVID-19 infection through bioinformatics and molecular simulation analysis.Methods:We used multiple publicly available databases to explore the expression patterns of angiotensin-converting enzyme 2(ACE2),transmembrane serine protease 2(TMPRSS2),and CD147 in major organs in the healthy and disease-specific populations,particularly the genitourinary organs.Single-cell RNA sequencing was used to analyze the cell-specific expression patterns of ACE2,TMPRSS2,CD147,cytokine receptors,and cytokine interacting proteins in genitourinary organs,such as the bladder,kidney,prostate,and testis.Additionally,gene set enrichmentanalysis was used to investigate the relationship between testosterone levels and COVID-19 vulnerability in patients with prostate cancer.Results:The results revealed that ACE2,TMPRSS2,and CD147 were highly expressed in normal urogenital organs.Then,they were also highly expressed in multiple tumors and chronic kidney diseases.Additionally,ACE2,TMPRSS2,and CD147 were significantly expressed in a range of cells in urogenital organs according to single-cell RNA sequencing.Cytokine receptors and cytokine interacting proteins,especially CCL2,JUN,and TIMP1,were commonly highly expressed in urogenital organs.Finally,gene set enrichment analysis results showed that high testosterone levels in prostate cancer patients were significantly related to the JAK-STAT signaling pathway and the Toll-like receptor signaling pathway which were associated with COVID-19.Conclusion:Our study provides new insights into the potential mechanisms of severe acute respiratory syndrome coronavirus 2 damage to urogenital organs from multiple perspectives,which may draw the attention of urologists to COVID-19 and contribute to the development of targeted drugs.
文摘Objective:This study aimed to investigate the impact of COVID-19 vaccination on the clinical characteristics and care needs of infected children during a high-intensity pandemic and to measure the potential effects of vaccination on children's health status and healthcare utilization.Methods:A sample of 903 children who had recently been infected with the novel coronavirus and came to our hospital's emergency department from January 11 to January 30,2023,was used as the research object in this retrospective study.The questionnaire on unknown coronavirus infection was filled out anonymously,and SPSS20.0 software was used for statistical data analysis.Results:The baseline conditions of 903 subjects were studied,including 505 males,accounting for 55.92%,and 398 females,accounting for 44.08%.The age of infection was mainly concentrated in preschool children(26.02%)and school-age children(38.76%).Regarding vaccination,561 cases were vaccinated,accounting for 62.13%.Among them,37 children received one dose of vaccine,accounting for 4.1%,463 children received two doses,accounting for 51.27%,and 61 children received three doses,accounting for 6.76%.For previous allergic diseases,180 children had a history of allergic diseases,accounting for 19.93%.Regarding sources of infection,the most common source was someone at home,accounting for 82.61%.Vaccination can effectively reduce the fever of children infected with the new coronavirus,the number of outpatient and emergency doctor visits,and the risk of hospitalization.In addition,regarding treatment,children in the vaccinated group were more likely to be treated at home,and the types of drugs used also differed from those in the non-vaccinated group.However,the vaccination group has a relatively high incidence of symptoms such as sore throat,cough,abnormal sense of smell and taste,muscle soreness,and headache.However,these are mild clinical symptoms and do not affect children's physical health and development.Parental care needs for children infected with COVID-19 are disparate,and parents of vaccinated children have lower proportions of needs for child care.Conclusion:Vaccination positively impacts the clinical outcomes of children infected with COVID-19 and their parents'well-being.
文摘The purpose of this review is to identify prevalent trends and risk factors in depression,anxiety,and eating disorders in the adolescent population in the post coronavirus disease 2019(COvID-19)scenario.We examined the literature published on adolescent mental health since the COVID-19 pandemic.We chose to summarize studies published from 2019 to 2022,using bibliographic search tools.We developed criteria for selecting articles for our review using diagnostic indicators and keywords.Mental health conditions such as depression,anxiety and eating disorders are commonly prevalent in this population and have shown increasing rates in the past three years.Some risk factors associated with these diagnoses include reduction in social interaction,increased workloads,routine shifts,sleep quality,social media usage and parental involvement.Routines,sleep cycles,physical activity,and social media should all be considered as a part of prevention in this population.Approaches that seem to be successful include maintaining social ties and avoiding negative social media usage with harmful content.Increased global public awareness,as well as parental awareness,through media campaigns,is critical to slowing the spread of mental health challenges in adolescents and teenagers in the post-COvID-19 era.
基金supported by the National Key R&D Program of China (2022YFC2303403)National Natural Science Foundation of China (82225021)supported by the Chinese Academy of Sciences (YSBR-010 and Y2022037)。
文摘Following the outbreak of coronavirus disease 2019(COVID-19),several severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)-related coronaviruses have been discovered.Previous research has identified a novel lineage of SARS-CoV-2-related CoVs in bats,including RsYN04,which recognizes human angiotensin-converting enzyme 2(ACE2)and thus poses a potential threat to humans.Here,we screened the binding of the RsYN04receptor-binding domain(RBD)to ACE2 orthologs from 52animal species and found that the virus showed a narrower ACE2-binding spectrum than SARS-CoV-2.However,the presence of the T484W mutation in the RsYN04 RBD broadened its range.We also evaluated 44 SARS-CoV-2antibodies targeting seven epitope communities in the SARS-CoV-2 RBD,together with serum obtained from COVID-19 convalescents and vaccinees,to determine their cross-reaction against RsYN04.Results showed that no antibodies,except for the RBD-6 and RBD-7 classes,bound to the RsYN04 RBD,indicating substantial immune differences from SARS-CoV-2.Furthermore,the structure of the RsYN04 RBD in complex with cross-reactive antibody S43 in RBD-7 revealed a potently broad epitope for the development of therapeutics and vaccines.Our findings suggest RsYN04 and other viruses belonging to the same clade have the potential to infect several species,including humans,highlighting the necessity for viral surveillance and development of broad anticoronavirus countermeasures.
基金This study was supported and financed by International Publication Research Grant Universitas Indonesia(Grant number:NKB-1535/UN2.RST/HKP.05.00/2020).
文摘Objective:To explore the impact of the coronavirus disease 2019(COVID-19)pandemic on the training experiences of urology residents in Indonesia.Methods:A cross-sectional study using a web-based questionnaire(SurveyMonkey)involved all registered urology residents in Indonesia.The questionnaire was structured in Bahasa Indonesia,composed of 28 questions,and divided into three sections:demographic characteristics,current daily activities,and opinions regarding training experiences during the COVID-19 outbreak.The survey was distributed to all respondents via chief of residents in each urology center from May 26,2020 to Jun 2,2020.Results:Of the total 247 registered urology residents,243 were eligible for the study.The response and completeness rate for this study were 243/243(100%).The median age of respondents was 30(range:24e38)years old,and 92.2%of them were male.Among them,6(2.5%)respondents were confirmed as COVID-19 positive.A decrease in residents’involvement in clinical and surgical activities was distinguishable in endourological and open procedures.Most educational activities were switched to web-based video conferences,while others opted for the in-person method.Smart learning methods,such as joining a national or international speaker webinar or watching a recorded video,were used by 93.8%and 80.7%of the respondents,respectively.The respondents thought that educational activities using web-based video conferences and smart learning methods were effective methods of learning.Overall,the respondents felt unsure whether training experiences during the COVID-19 pandemic were comparable to the respective period before.Conclusion:The COVID-19 pandemic negatively affected urology residents’training experiences.However,it also opened up new possibilities for incorporating new learning methodologies in the future.
文摘Considerable resources,technology,and efforts are being utilized worldwide to eradicate the coronavirus.Although certain measures taken to prevent the further spread of the disease have been successful,efforts to completely wipe out the coronavirus have been insufficient.Coronavirus patients have symptoms similar to those of chest Tuberculosis(TB)or pneumonia patients.Chest tuberculosis and coronavirus are similar because both diseases affect the lungs,cause coughing and produce an irregular respiratory system.Both diseases can be confirmed through X-ray imaging.It is a difficult task to diagnose COVID-19,as coronavirus testing kits are neither excessively available nor very reliable.In addition,specially trained staff and specialized equipment in medical laboratories are needed to carry out a coronavirus test.However,most of the staff is not fully trained,and several laboratories do not have special equipment to perform a coronavirus test.Therefore,hospitals and medical staff are under stress to meet necessary workloads.Most of the time,these staffs confuse the tuberculosis or pneumonia patient with a coronavirus patient,as these patients present similar symptoms.To meet the above challenges,a comprehensive solution based on a deep learning model has been proposed to distinguish COVID-19 patients from either tuberculosis patients or healthy people.The framework contains a fusion of Visual Geometry Group from Oxford(VGG16)and Residual Network(ResNet18)algorithms as VGG16 contains robust convolutional layers,and Resnet18 is a good classifier.The proposed model outperforms other machine learning and deep learning models as more than 94%accuracy for multiclass identification has been achieved.
文摘In early December 2019,a new virus named“2019 novel coronavirus(2019-nCoV)”appeared in Wuhan,China.The disease quickly spread worldwide,resulting in the COVID-19 pandemic.In the currentwork,we will propose a novel fuzzy softmodal(i.e.,fuzzy-soft expert system)for early detection of COVID-19.Themain construction of the fuzzy-soft expert systemconsists of five portions.The exploratory study includes sixty patients(i.e.,fortymales and twenty females)with symptoms similar to COVID-19 in(Nanjing Chest Hospital,Department of Respiratory,China).The proposed fuzzy-soft expert systemdepended on five symptoms of COVID-19(i.e.,shortness of breath,sore throat,cough,fever,and age).We will use the algorithm proposed by Kong et al.to detect these patients who may suffer from COVID-19.In this way,the present system is beneficial to help the physician decide if there is any patient who has COVID-19 or not.Finally,we present the comparison between the present system and the fuzzy expert system.
基金study was reviewed and approved by the independent ethics committee of the Military Medical Academy named after SM.Kirov,protocol(Approval No.246).
文摘BACKGROUND An important area of effective control of the coronavirus disease 19(COVID-19)pandemic is the study of the pathogenic features of severe acute respiratory syndrome coronavirus 2 infection,including those based on assessing the state of the intestinal microbiota and permeability.AIM To study the clinical features of the new COVID-19 in patients with mild and moderate severity at the stage of hospitalization,to determine the role of hepatobiliary injury,intestinal permeability disorders,and changes in the qualitative and quantitative composition of the microbiota in the development of systemic inflammation in patients with COVID-19.METHODS The study was performed in 80 patients with COVID-19,with an average age of 45 years,19 of whom had mild disease,and 61 had moderate disease severity.The scope of the examination included traditional clinical,laboratory,biochemical,instrumental,and radiation studies,as well as original methods for studying microbiota and intestinal permeability.RESULTS The clinical course of COVID-19 was studied,and the clinical and biochemical features,manifestations of systemic inflammation,and intestinal microbiome changes in patients with mild and moderate severity were identified.Intestinal permeability characteristics against the background of COVID-19 were evaluated by measuring levels of proinflammatory cytokines,insulin,faecal calprotectin,and zonulin.CONCLUSION This study highlights the role of intestinal permeability and microbiota as the main drivers of gastroenterological manifestations and increased COVID-19 severity.
基金The authors extend their appreciation to the Deanship of ScientificResearch at King Khalid University for funding this work through Large Groups(Project under Grant Number(RGP.2/116/43)).
文摘Artificial intelligence is demonstrated by machines,unlike the natural intelligence displayed by animals,including humans.Artificial intelligence research has been defined as the field of study of intelligent agents,which refers to any system that perceives its environment and takes actions that maximize its chance of achieving its goals.The techniques of intelligent computing solve many applications of mathematical modeling.The researchworkwas designed via a particularmethod of artificial neural networks to solve the mathematical model of coronavirus.The representation of the mathematical model is made via systems of nonlinear ordinary differential equations.These differential equations are established by collecting the susceptible,the exposed,the symptomatic,super spreaders,infection with asymptomatic,hospitalized,recovery,and fatality classes.The generation of the coronavirus model’s dataset is exploited by the strength of the explicit Runge Kutta method for different countries like India,Pakistan,Italy,and many more.The generated dataset is approximately used for training,validation,and testing processes for each cyclic update in Bayesian Regularization Backpropagation for the numerical treatment of the dynamics of the desired model.The performance and effectiveness of the designed methodology are checked through mean squared error,error histograms,numerical solutions,absolute error,and regression analysis.
基金Research and Development of a Telemedicine System to Support the Monitoring of the Possible Spread of COVID-19 in Order to Develop Analytical Tools Used to Reduce the Risk of Infection,No.ITMS:313011ASX4.
文摘The coronavirus disease 2019(COVID-19)pandemic caused by the severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)has had a significant impact on the lives of millions of people,especially those with other concomitant diseases,such as chronic liver diseases.To date,seven coronaviruses have been identified to infect humans.The main site of pathological action of these viruses is lung tissue.However,a substantial number of studies have proven that SARSCoV-2 shows affinity towards several organs,including the gastrointestinal tract and the liver.The current state of evidence points to several proposed mechanisms of liver injury in patients with COVID-19 and their combination.Liver impairment is considered to be the result of the direct effect of the virus on the hepatic tissue cells,a systemic reaction consisting of inflammation,hypoxia and cytokine storm,drug-induced liver injury,with the possible contribution of a perturbed gut-liver axis.Reactivation of chronic hepatic disease could be another factor for liver impairment in patients with SARS-CoV-2 infection.Acute-onchronic liver failure(ACLF)is a relatively new syndrome that occurs in 10%–30%of all hospitalized patients with chronic liver disease.It is crucial to recognize high-risk patients due to the increased morbidity and mortality in these cases.Several published studies have reported virus infection as a trigger factor for ACLF.However,to date,there are few relevant studies describing the presence of ACLF in patients with acute SARS-CoV-2 infection.In this minireview we summarize the current state of knowledge regarding the relation between ACLF and acute SARS-CoV-2 infection.
基金supported by the National Key Research and Development Program of China(2020YFC0845400)National Natural Science Foundation of China(82141203,82304753)+2 种基金Innovation Team and Talents Cultivation Program of National Administration of Traditional Chinese Medicine(ZYYCXTD-D-202004)Shanghai Frontiers Science Center of TCM Chemical BiologyWe are very grateful to Professor Xiaolan Cui and her team from the China Academy of Chinese Medical Sciences for their support in animal models.
文摘Objective:Cold exposure has been suggested to be advantageous for the spread and infection of the coronavirus,and the gut microbiota influences the severity of the infection by modulating host inflammatory and immune responses.However,it remains unclear whether the promotion of viral infection through cold exposure is linked to the gut microbiota.Methods:In this study,we performed an unbiased analysis of gut microbiota,serum,and lung tissue metabolome changes in cold-exposed and virus-infected mice,alongside the assessment of immune-inflammatory indicators in serum and lung tissue.Results:The results revealed that both cold exposure and viral infection significantly decreased the percentage of peripheral blood lymphocytes(CD4^(+)T cells,CD8^(+)T cells,and B cell)and increased the expression of inflammatory factors(IL-6,IL-1β,TNF-α,and IFN-γ).Meanwhile,cold exposure disrupted the homeostasis of gut microbiota,elevating the abundance of pathogenic bacteria(Staphylococcus)and diminishing the abundance of beneficial bacteria(Alistipes).Notably,in virus-infected mice exposed to a cold environment,the reduction in the abundance of beneficial bacteria Alistipes was more pronounced than in cases of single virus infection and cold exposure.Analysis of altered serum and lung tissue metabolites highlighted glycerophospholipids,fatty acids,and eicosanoids as the most affected metabolites by cold exposure.These metabolites,closely associated with virus infection,exhibited a significant correlation with immune-inflammatory indicators.Conclusion:These findings establish a mechanistic connection between cold exposure and virus infection,suggesting that cold exposure-induced dysregulation of gut microbiota and lipid metabolism diminishes host immunity,promoting virus infection.
文摘Background:Understanding and minimizing existing global coronavirus disease 2019(COVID-19)vaccination disparities is critical to global population health and eliminating health inequities.The study aims to investigate the disparities of vaccination coverage and progression and the associated economic and educational determinants to inform global COVID-19 vaccination strategies.Methods:COVID-19 vaccination coverage data from 206 countries used in the study were derived from“Our World in Data”website.After obtaining the vaccination coverage indicators,we fitted the progression indicators for vaccination.Correlation and multiple linear regression analysis were used to examine the effects of gross domestic product(GDP)per capita,Gini index,education,and their interactions on the coverage and progression of the COVID-19 vaccination.Results:The coverage of COVID-19 vaccination ranged from less than 30 doses to more than 150 doses per hundred people,from less than 15%to more than 75%for proportion of people vaccinated,from less than 15%to more than 60%for proportion of people fully vaccinated.Similarly,the progression of vaccination ranged from less than 0.1 to more than 0.6 for progression of total number of doses,from less than 0.1 to more than 0.3 for progression of proportion of people vaccinated,and from less than 0.1 to more than 0.4 for progression of proportion of people fully vaccinated.GDP per capita and education were positively associated with the coverage and progression,while Gini index was negatively associated with the coverage and progression.Negative interaction between GDP per capita and education was also observed for coverage(0=-0.012 to-0.011,P<0.05)and progression(0=-0.012 to-0.011,P<0.05).Conclusions:Substantial geographic disparities existed for the coverage and progression of COVID-19 vaccination.
文摘Objectives:The present study aims to assess the prevalence and predictors of smartphone addiction and insomnia among nurses working in the outpatient department(OPD)after the second wave of the coronavirus disease 2019(COVID-19)pandemic.Materials and Methods:A descriptive,cross-sectional study was carried out among 117 OPD nurses between October and December 2021 using a purposive sampling technique.Two self-reported standardized scales,the Smartphone Addiction Scale-ShortVersion and Insomnia Severity Index were used.Kolmogorov–Smirnov test,Mann–Whitney U,and Kruskal–Wallis Htest were used.Pearson’s correlation and Scatter plot were used to determine the relationship between the study variables.A stepwise multiple linear regression analysis was also performed.Results:The majority of participants had slight smartphone addiction(78.6%)and suffered from sub-threshold to severe forms of insomnia(73.5%).A significant mild positive correlation was found between smartphone addiction and insomnia(r=0.195,P<0.05).Stepwise multivariate logistic regression analysis predicted factors such as female gender and exposure to smartphones for more than 5 years influencing smartphone addiction.A strong influence of exposure to the smartphone for more than 5 years was found on insomnia severity.Conclusion:Smartphone addiction and insomnia were identified problems among nurses working in the OPD after the second wave of the COVID-19 pandemic,requiring an urgent need to identify and manage various factors responsible for smartphone addiction and insomnia such as female gender and years of exposure to smartphones.
基金This study was approved by the Medical Ethics Commission of Chita State Medical Academy(No.104,2020-11-11)informed consent in writing was provided by the legal guardians.
文摘Objective:Clinical manifestation of the inflammatory process in its relation to biochemical markers(total cysteine[Cys],cysteine-glycine[CysGly],glutathione[GSH],glutamate-cysteine[Glu-Cys],homocysteine[Hcy],the ratio of reduced to oxidized glutathione[GSH/GSSG],the ratio of reduced to oxidized cysteine[CySH/CySS],malondialdehyde-oxidized low-density lipoproteins[MDA-oxLDL])has been studied in patients with coronavirus disease 2019(COVID-19).Material and methods:48 patients with mild to severe COVID-19 and 20 healthy volunteers were included in our research.The participants were divided into 4 experimental groups according to inflammation intensity estimated based on the serum levels of interleukin 6(IL-6).Results:All 4 groups showed the prevalence of male patients and elevated serum levels of IL-6(by 54.6%).There was no comorbidity in patients with mild COVID-19(nasopharyngitis symptoms)and in healthy control subjects.50%of patients with lung damage had accompanying diseases.Alterations of aminoethyl metabolism were detected in COVID-19 patients:as reflected by the decreased levels of Cys,CysGly,and Glu-Cys and the increased levels of GSH as compared to the control group.Conclusion:Elevation of IL-6 over 7.5 pg/mL was associated with decreased GSH/GSSG and CySH/CySS ratios indicating enhanced oxidative stress and was followed by protein oxidation,specifically MDA-oxLDL.
