Multiple sclerosis is an inflammatory disorder chara cterized by inflammation,demyelination,and neurodegeneration in the central nervous system.Although current first-line therapies can help manage symptoms and slow d...Multiple sclerosis is an inflammatory disorder chara cterized by inflammation,demyelination,and neurodegeneration in the central nervous system.Although current first-line therapies can help manage symptoms and slow down disease progression,there is no cure for multiple sclerosis.The gut-brain axis refers to complex communications between the gut flo ra and the immune,nervous,and endocrine systems,which bridges the functions of the gut and the brain.Disruptions in the gut flora,termed dys biosis,can lead to systemic inflammation,leaky gut syndrome,and increased susceptibility to infections.The pathogenesis of multiple sclerosis involves a combination of genetic and environmental factors,and gut flora may play a pivotal role in regulating immune responses related to multiple scle rosis.To develop more effective therapies for multiple scle rosis,we should further uncover the disease processes involved in multiple sclerosis and gain a better understanding of the gut-brain axis.This review provides an overview of the role of the gut flora in multiple scle rosis.展开更多
This article presents information on the study of the flora of Uzbekistan based on grid system mapping. The urban flora of the city of Bukhara was researched in it. As a result of research, the territory of Bukhara ci...This article presents information on the study of the flora of Uzbekistan based on grid system mapping. The urban flora of the city of Bukhara was researched in it. As a result of research, the territory of Bukhara city was divided into 85 indexes based on 1 × 1 km<sup>2</sup> grid mapping system. The diversity and density of species in the indexes are determined. The influence of anthropogenic factors on the diversity of species in the indexes is determined.展开更多
Intestinal flora affects the maturation of the host immune system,serves as a biomarker and efficacy predictor in the immunotherapy of several cancers,and has an important role in the development of colorectal cancer(...Intestinal flora affects the maturation of the host immune system,serves as a biomarker and efficacy predictor in the immunotherapy of several cancers,and has an important role in the development of colorectal cancer(CRC).Anti-PD-1/PD-L1 antibodies have shown satisfactory results in MSI-H/d MMR CRC but performed poorly in patients with MSS/p MMR CRC.In recent years an increasing number of studies have shown that intestinal flora has an important impact on anti-PD-1/PD-L1 antibody efficacy in CRC patients.Preclinical and clinical evidence have suggested that anti-PD-1/PD-L1 antibody efficacy can be improved by altering the composition of the intestinal flora in CRC.Herein,we summarize the studies related to the influence of intestinal flora on anti-PD-1/PD-L1 antibody efficacy in CRC and discuss the potential underlying mechanism(s).We have focused on the impact of the intestinal flora on the efficacy and safety of anti-PD-1/PD-L1 antibodies in CRC and how to better utilize the intestinal flora as an adjuvant to improve the efficacy of anti-PD-1/PD-L1 antibodies.In addition,we have provided a basis for the potential of the intestinal flora as a new treatment modality and indicator for determining patient prognosis.展开更多
Diabetes comprises a group of metabolic diseases characterized by hyperglycemia stemming from various factors.Current diabetes management primarily focuses on blood glucose control,yet it is inherently progressive,nec...Diabetes comprises a group of metabolic diseases characterized by hyperglycemia stemming from various factors.Current diabetes management primarily focuses on blood glucose control,yet it is inherently progressive,necessitating increased reliance on exogenous blood glucose control methods over time.Therefore,there is an urgent need to explore novel intervention strategies addressing both diabetes and its complications.The human intestinal microbiota,often referred to as the"second genome",exhibits significant diversity and plays a pivotal role in insulin resistance,glucose and lipid metabolism,and inflammatory response.Notably,Li and Guo have elucidated the involvement of intestinal flora in the pathogenesis of type 2 diabetes mellitus(T2DM)and proposed a novel therapeutic approach targeting intestinal microbes.This advancement enhances our comprehension of the multifaceted and multi-target regulation of T2DM by intestinal microflora,thereby offering fresh avenues for understanding its pathogenesis and clinical management.This letter briefly summarizes the role of intestinal flora in T2DM based on findings from animal experiments and clinical studies.Additionally,it discusses the potential clinical applications and challenges associated with targeting intestinal flora as therapeutic interventions.展开更多
Colorectal cancer, as a common malignant tumor, has been increasing in incidence year by year and has become one of the leading causes of death worldwide. Meanwhile, researchers have found a close relationship between...Colorectal cancer, as a common malignant tumor, has been increasing in incidence year by year and has become one of the leading causes of death worldwide. Meanwhile, researchers have found a close relationship between dysbiosis of the gut microbiota and colorectal cancer, which has further triggered indepth exploration of the role of gut microbiota in the pathogenesis, diagnosis, and treatment of colorectal cancer. Studies have shown that there are specific microbial changes in colorectal cancer tissues, including enrichment or depletion of certain bacterial species, which may be associated with tumor growth, invasion, and metastasis. Additionally, gut microbiota has been found to be closely linked to tumor microenvironment, tumor immune response, chemotherapy drug metabolism, and other factors. In this context, it is imperative to study the gut microbiota in colorectal cancer. A comprehensive understanding of the interaction between gut microbiota and colorectal cancer is not only helpful in revealing novel mechanisms of colorectal cancer development, but also holds promise in providing new strategies and targets for early diagnosis, individualized treatment, and prevention of colorectal cancer. This review aims to thoroughly discuss the research progress of gut microbiota in colorectal cancer, including its compositional characteristics, its role in the occurrence and development of colorectal cancer, and its potential clinical applications. The goal is to provide references and insights for further research in this field.展开更多
In recent years,the relationship between intestinal flora and liver disease has become an important research direction of liver diseases.A growing body of evidence indicates that gut bacteria play a key role in the pa...In recent years,the relationship between intestinal flora and liver disease has become an important research direction of liver diseases.A growing body of evidence indicates that gut bacteria play a key role in the pathophysiology of liver disease,this article combed the at home and abroad in recent years,the changes of intestinal flora and autoimmune liver disease,alcoholic liver disease,fatty liver disease related to metabolism,hepatitis b viral hepatitis,cirrhosis and liver cancer occurrence and progress of relationship of related research,And the new progress of regulating intestinal microecology in the treatment of liver diseases.Dysregulation of intestinal flora plays an important role in the occurrence and development of liver diseases.Regulating intestinal flora to improve the prognosis of liver diseases will be an important development direction in the future.展开更多
Diabetes mellitus(DM)is a complicated,globally expanding disease that is influenced by hereditary and environmental variables.Changes in modern society’s food choices,physical inactivity,and obesity are significant f...Diabetes mellitus(DM)is a complicated,globally expanding disease that is influenced by hereditary and environmental variables.Changes in modern society’s food choices,physical inactivity,and obesity are significant factors in the development of type 2 DM(T2DM).The association between changes in intestinal flora and numerous disorders,including obesity,diabetes,and cardiovascular diseases,has been studied in recent years.The purpose of this review is to analyze the mechanisms underlying the alteration of the diabetic patients’intestinal flora,as well as their therapeutic choices.Also included is a summary of the antidiabetic benefits of natural compounds demonstrated by studies.The short-chain fatty acids theory,the bile acid theory,and the endotoxin theory are all potential methods by which intestinal flora contributes to the establishment and progression of T2DM.Due to an intestinal flora imbalance,abnormalities in shortchain fatty acids and secondary bile acids have been found in diabetic patients.Additionally,metabolic endotoxemia with altering flora induces a systemic inflammatory response by stimulating the immune system via bacterial translocation.The agenda for diabetes treatment includes the use of short-chain fatty acids,probiotics,prebiotics in the diet,fecal bacteria transplantation,and antibiotics.Animal studies have proven the antidiabetic benefits of numerous bioactive substances,including Flavonoids,Alkaloids,Saponin,and Allicin.However,further research is required to contribute to the treatment of diabetes.展开更多
External therapy,which has been used for millennia to treat disease,has now become the newest member of complementary and alternative therapies.A growing number of clinical studies and animal experiments have shown th...External therapy,which has been used for millennia to treat disease,has now become the newest member of complementary and alternative therapies.A growing number of clinical studies and animal experiments have shown that external therapy exerts a positive effect on the intestinal flora.In this paper,we review the research related to external therapy on various systemic diseases and focus on changes in the intestinal flora.We found that studies on external therapy are dominated by acupuncture and tuina,primarily aimed at the treatment of digestive and neurological diseases.However,the deeper mechanism of regulation of the intestinal flora by external therapy has not yet been experimentally confirmed.展开更多
Human wellness is the ultimate goal of our efforts in improving the human life.Special foods are undoubtedly important in achieving human wellness.However,overeating significantly leads to obesity and diabetes.These c...Human wellness is the ultimate goal of our efforts in improving the human life.Special foods are undoubtedly important in achieving human wellness.However,overeating significantly leads to obesity and diabetes.These chronic diseases will in turn affect the human wellness.Therefore,“dietary restriction and proper exercise”were introduced in the human daily life.Different foods cause various effects on the human health.The diversification of diet is a priority for nutritionists to keep our body healthy.To avoid diabetes mellitus,special foods for ketogenic diet,low-carbon diet,and low-calorie intake are also gradually attracting attention.In addition,the hypothesis that“hunger sensation comes from gut flora”brings new light to the research on the biological motivation for humans to eat food.This hypothesis has been gradually demonstrated using the flexible fasting technology by providing special foods,such as plant polysaccharides and dietary fibers.The response to food-needing signals from the gut flora to these foods demonstrates the importance of the gut flora in improving human wellness.The gut flora is probably an essential factor for translating the food-eating signals and converting the nutrition to our body.Therefore,“gut flora priority principle”is developed to guarantee human wellness.The 16S rRNA sequencing and mass spectrometric techniques can be used to identify the gut flora,which may guide us to a new era of human wellness based on gut flora wellness.展开更多
The municipality of Boa Nova,in northeastern Brazil,is in an ecotone zone between the Caatinga and Atlantic Forest phytogeographic domains.The transition phytophysiognomy is seasonal forest and known locally as mata d...The municipality of Boa Nova,in northeastern Brazil,is in an ecotone zone between the Caatinga and Atlantic Forest phytogeographic domains.The transition phytophysiognomy is seasonal forest and known locally as mata de cipó.In these phytophysiognomies there are lajedos,which are rock outcrops colonized by vegetation welladapted to extreme microclimatic variation and vegetation diversity is affected by the vegetation types of the surrounding areas.Due to the singularity of these environments and the relevance of floristic studies for conservation,this work aimed to identify the species richness and compare the similarity of the flora on four rock outcrops in Boa Nova.The flora was surveyed during exploratory walks along lajedos between 2016 and 2019.In total,162 species were identified on the Boa Nova outcrops.The flora has a composition and structure similar to semiarid outcrops,as well as endemic species that also occur in surrounding phytophysiomies.Despite the proximity,a similarity index revealed there is floristic dissimilarity between the areas.Nine new occurrences were recorded for the region,five species are threatened with extinction(Aosa gilgiana,Ficus cyclophylla,Hippeastrum stigmovittatum,Pleroma caatingae and Trixis pruskii),and 43 species are common in anthropogenic areas.This reinforces the importance of actions to conserve these areas.展开更多
There are a number of reservoirs in the West Zarafshan Range, which have their own water-saturated, hydrographic, soil and ecological features. In this regard, their algoflora is also formed in its own way. As a resul...There are a number of reservoirs in the West Zarafshan Range, which have their own water-saturated, hydrographic, soil and ecological features. In this regard, their algoflora is also formed in its own way. As a result of research in this area, 217 species of algae were identified, belonging to 5 divisions, 11 classes, 37 orders, 57 families and 97 genera. The development and distribution of organisms in water is influenced by a number of external factors, such as: temperature, light, mineral and organic substances, active-reactive water environment, gas regime (oxygen, carbon dioxide, hydrogen sulfide), flow rate, change in water volume, degree transparency and wave formation.展开更多
Increasing incidences showed that food allergies have attracted more and more attention from researchers.BALB/c mice were sensitized with wheat gluten combined with aluminum hydroxide adjuvant via intraperitoneal inje...Increasing incidences showed that food allergies have attracted more and more attention from researchers.BALB/c mice were sensitized with wheat gluten combined with aluminum hydroxide adjuvant via intraperitoneal injection,transdermal sensitization,and oral gavage sensitization route.Results showed that all the three sensitization methods could induce allergic symptoms;increase the serum antibody(total immunoglobulin E(IgE),specific IgE,IgG,IgA)and histamine content;promote the secretion of Th2 cytokines(interleukin(IL)-4,IL-5,IL-13)and inflammatory factors(IL-6,IL-17 A,IL-10);and inhibit the production of Th1 cytokines(IFN-γ,IL-2).However,the allergic symptoms of mice sensitized by intraperitoneal injection were the most obvious among the three models.The level of serum antibodies in intraperitoneal injection group was significantly higher than control.Subsequently,16 S rRNA sequencing technology was used to analyze the intestinal flora of mice.The results showed that the abundance of Firmicutes in the wheat protein sensitized group was lower than that in the normal group,while the abundance of Bacteroidetes was higher,and Lactobacillus was the difference marker in normal group.Bacterial species diversity analysis showed that the species richness and diversity of intestinal flora in mice were decreased,the difference between mice induced by intraperitoneal injection and normal control group mice was the most significant.Taken together,these results show that among three sensitization methods used to build a mouse model with aluminum hydroxide as adjuvant,intraperitoneal injection is the comparably best way to build a mouse sensitization mode.展开更多
This study set out to look into the palyno-morphological characteristics of specific allergenic species from diverse plant families in Samarkand, Uzbekistan. Six different species i.e. Betula pendula, Fraxinus pennsyl...This study set out to look into the palyno-morphological characteristics of specific allergenic species from diverse plant families in Samarkand, Uzbekistan. Six different species i.e. Betula pendula, Fraxinus pennsylvanica, Magnolia × soulangeana, Pinus brutia var. eldarica, Populus alba, Quercus robur were collected, pressed, identified, and then examined under a microscope. Under light microscope, both quantitative and qualitative characteristics of the pollen grains were recorded, including pollen type, pollen size, pollen shape (polar and equatorial view), P/E ratio, mesocolpium distance, exine thickness, colpi type, colpi length, and width. It was found that a warm spring in Uzbekistan causes an early commencement of the vegetative and dusting phases, in contrast to the climatic circumstances of the researched entities’ motherland (cold spring). Studies in aeropalinology and morphology enable the resolution of numerous environmental issues. The findings highlighted the importance of pollen morphology as an identifying aid and showed how the tested species’ palynological characteristics varied. In order to promote future phylogenetic description of the Uzbekistan flora, the current study may help us better understand the palynomorphological traits of native plants. This essay only briefly and inadequately addresses these issues. The information gathered will be used to make an atlas of allergic plants in Samarkand and an electronic warning system for the general public about the spread of pollen from the city’s allergenic plants in the future.展开更多
Hepatocellular carcinoma (HCC) is one of the common major malignancies worldwide and has the third highest mortality rate of any malignancy. The current field of treatment for hepatocellular carcinoma is multidiscipli...Hepatocellular carcinoma (HCC) is one of the common major malignancies worldwide and has the third highest mortality rate of any malignancy. The current field of treatment for hepatocellular carcinoma is multidisciplinary in involvement and a combination of therapeutic approaches, among which immunotherapy is the treatment modality for advanced hepatocellular carcinoma. This review provides new ideas for developing immunotherapy regimens and improving the efficacy of immunotherapy for patients with advanced liver cancer by summarising the progress of intestinal flora in the immunotherapy of patients with liver cancer.展开更多
Intestinal flora is a large and complex micro-ecosystem, and the growth and proliferation activities of different flora will have an important impact on the occurrence and development of gastric cancer and colorectal ...Intestinal flora is a large and complex micro-ecosystem, and the growth and proliferation activities of different flora will have an important impact on the occurrence and development of gastric cancer and colorectal cancer as well as related treatment. This article reviews the latest research progress on the relationship between intestinal flora and gastric cancer and colorectal cancer.展开更多
Intestinal flora are involved in environmental homeostasis and the development of many diseases within the human body. The liver, as one of the most important digestive organs in human beings, communicates with the in...Intestinal flora are involved in environmental homeostasis and the development of many diseases within the human body. The liver, as one of the most important digestive organs in human beings, communicates with the intestinal flora and their metabolites in the intestine through the biliary system, the hepatic portal system, and the corpuscular circulation, an interrelated system known as the intestinal-hepatic axis. Hepatocellular carcinoma is the most common malignant tumor of the liver and one of the leading causes of cancer-related deaths worldwide. There is increasing evidence that intestinal flora plays an important role in the evolution of hepatocellular carcinoma. Besides, intestinal flora has great potential in the treatment of liver cancer. On this basis, this paper summarizes the relevant studies on the role of intestinal flora in the development of hepatocellular carcinoma and discusses its potential value in the treatment of hepatocellular carcinoma.展开更多
Objective To investigate the differences in intestinal flora of patients with primary liver cancer and ofhealthy individuals and to investigate the effect of the differential flora on the development of liver cancer.M...Objective To investigate the differences in intestinal flora of patients with primary liver cancer and ofhealthy individuals and to investigate the effect of the differential flora on the development of liver cancer.Methods Overall, 67 patients with primary liver cancer who received systematic and complete treatmentbetween January 2019 and December 2020 at the Sixth People’s Hospital of Qingdao and had completeclinical data were enrolled in this study, and 26 individuals who were healthy on physical examination inthe same period were used as healthy controls. Macro genome and 16s ribosome Deoxyribo Nucleic Acid(rDNA) high-throughput sequencing were performed on the stool flora of the enrolled patients and controls,and the differences in the intestinal flora were analyzed using the LEfSe bioinformatics software.Results Compared with the control samples, all the tested patient samples showed statistically significantdifferences in the number of colonies of 5 bacterial phyla, 5 orders, 8 families, 11 genera, and 14 species(P < 0.05).Conclusion Compared with healthy people, patients with primary liver cancer have significant differencesin the intestinal flora composition. The alteration of the intestinal flora may be correlated with the occurrenceof primary liver cancer, and the intestinal flora may become a novel target for the prevention and treatmentof primary liver cancer.展开更多
The purpose of this study is to generate essential scientific information regarding the floristic composition and the structures of the ecotone vegetation in the natural forest Codrul Secular Slătioara, becau...The purpose of this study is to generate essential scientific information regarding the floristic composition and the structures of the ecotone vegetation in the natural forest Codrul Secular Slătioara, because so far no such studies have been carried out in this reserve. Also, the results of this study provide important data, which can be the basis for the development of strategies for the conservation and sustainable use of some herbaceous species, valuable due to genetic and socio-economic, respectively of a regular forest monitoring program. The floristic studies were carried out in the 2020 to 2021 vegetation season. Based on the specialized literature, plant species were identified and then processed from the point of view of bioforms, floristic elements and ecological indices. The economic categories in which the identified species fall were also analyzed. Thus, a total of 292 species belonging to 46 botanical families were identified and their distribution by ecosystems is as follows: in the forest, 90 species were identified, in the lands adjacent to the forest, in the meadows, 202 species were found and in the area of border, 120 species of vascular plants were identified. Most of the species identified in the study area are hemicryptophytes, heliophiles, and eurytherms, which grow on dry to moderately moist, eurytrophic soils. More than 50% of the identified species belong to several categories of useful plants (fodder, medicinal, melliferous, edible).展开更多
Because of the continuous improvement of the quality of life,the population of gout patients is also increasing,which seriously affects the quality of life of patients.Traditional Chinese medicine compound has a long ...Because of the continuous improvement of the quality of life,the population of gout patients is also increasing,which seriously affects the quality of life of patients.Traditional Chinese medicine compound has a long history and remarkable clinical effect in treating gout patients,and has been widely used.Intestinal flora and its metabolites are the focus of current research,which can promote intestinal mucosal barrier,improve immunity and improve metabolism.The regulation of intestinal flora can reduce serum uric acid and inhibit inflammation to fight gouty arthritis.Moreover,the mechanism of intestinal flora is related to the spleen in Chinese medicine theory.Therefore,this study discusses the research mechanism and clinical application of traditional Chinese medicine compound in treating gout by regulating intestinal flora,and provides theoretical basis for the clinical application of traditional Chinese medicine and the expansion of new dosage forms.展开更多
Objective:To investigate the intestinal flora in elderly patients with type 2 diabetes mellitus with early nephropathy.Methods:43 elderly patients with type 2 diabetes mellitus with early nephropathy(diabetic nephropa...Objective:To investigate the intestinal flora in elderly patients with type 2 diabetes mellitus with early nephropathy.Methods:43 elderly patients with type 2 diabetes mellitus with early nephropathy(diabetic nephropathy group)and 51 elderly patients with type 2 diabetes mellitus(type 2 diabetes mellitus group)admitted to our hospital from January 2021 to October 2022 were retrospectively analyzed,with 39 healthy people who underwent a physical examination in our hospital during the same period as the control group.The fecal specimens of the three groups were collected,and the 16S rDNAs of bacteria in the fecal samples were extracted,amplified,and sequenced for intestinal flora operational taxonomic unit(OTU)classification and Alpha diversity analysis.Results:(1)Intestinal flora OTUs:there were 545 intestinal flora OTUs unique to the control group,424 intestinal flora OTUs unique to diabetic nephropathy,and 321 intestinal flora OTUs unique to the type 2 diabetes group.There were 403 intestinal flora OTUs common to the control group and diabetic nephropathy group,256 intestinal flora OTUs common to the control group and type 2 diabetes group,and 298 intestinal flora OTUs common to the type 2 diabetes group and diabetic nephropathy group.235 intestinal flora OTUs were common to all 3 groups of subjects.(2)Alpha diversity:The statistical analysis indicated that there was a statistically significant difference(P<0.05)in the Alpha diversity of intestinal flora,as assessed by the Ace index and Simpson’s index,among the three subject groups.However,no statistical significance(P>0.05)was observed when comparing the Chao 1 index and Shannon index.Further observation of the Ace index and Simpson index in the three groups revealed that both the diabetic nephropathy group and the type 2 diabetes mellitus group had lower values than the control group.Conclusion:The diversity of intestinal flora decreases in elderly patients with type 2 diabetes mellitus with early nephropathy.展开更多
文摘Multiple sclerosis is an inflammatory disorder chara cterized by inflammation,demyelination,and neurodegeneration in the central nervous system.Although current first-line therapies can help manage symptoms and slow down disease progression,there is no cure for multiple sclerosis.The gut-brain axis refers to complex communications between the gut flo ra and the immune,nervous,and endocrine systems,which bridges the functions of the gut and the brain.Disruptions in the gut flora,termed dys biosis,can lead to systemic inflammation,leaky gut syndrome,and increased susceptibility to infections.The pathogenesis of multiple sclerosis involves a combination of genetic and environmental factors,and gut flora may play a pivotal role in regulating immune responses related to multiple scle rosis.To develop more effective therapies for multiple scle rosis,we should further uncover the disease processes involved in multiple sclerosis and gain a better understanding of the gut-brain axis.This review provides an overview of the role of the gut flora in multiple scle rosis.
文摘This article presents information on the study of the flora of Uzbekistan based on grid system mapping. The urban flora of the city of Bukhara was researched in it. As a result of research, the territory of Bukhara city was divided into 85 indexes based on 1 × 1 km<sup>2</sup> grid mapping system. The diversity and density of species in the indexes are determined. The influence of anthropogenic factors on the diversity of species in the indexes is determined.
基金supported by grants from National Cancer Center Climbing Fund(Grant No.NCC201916B03)Provincial-ministerial Co-construction Project of Henan Province Science and Technology Key Point Tackling Plan(Grant No.SBGJ202102064)Henan Provincial Scientific and Technological Project(Grant Nos.222102310363 and 222102310677)。
文摘Intestinal flora affects the maturation of the host immune system,serves as a biomarker and efficacy predictor in the immunotherapy of several cancers,and has an important role in the development of colorectal cancer(CRC).Anti-PD-1/PD-L1 antibodies have shown satisfactory results in MSI-H/d MMR CRC but performed poorly in patients with MSS/p MMR CRC.In recent years an increasing number of studies have shown that intestinal flora has an important impact on anti-PD-1/PD-L1 antibody efficacy in CRC patients.Preclinical and clinical evidence have suggested that anti-PD-1/PD-L1 antibody efficacy can be improved by altering the composition of the intestinal flora in CRC.Herein,we summarize the studies related to the influence of intestinal flora on anti-PD-1/PD-L1 antibody efficacy in CRC and discuss the potential underlying mechanism(s).We have focused on the impact of the intestinal flora on the efficacy and safety of anti-PD-1/PD-L1 antibodies in CRC and how to better utilize the intestinal flora as an adjuvant to improve the efficacy of anti-PD-1/PD-L1 antibodies.In addition,we have provided a basis for the potential of the intestinal flora as a new treatment modality and indicator for determining patient prognosis.
文摘Diabetes comprises a group of metabolic diseases characterized by hyperglycemia stemming from various factors.Current diabetes management primarily focuses on blood glucose control,yet it is inherently progressive,necessitating increased reliance on exogenous blood glucose control methods over time.Therefore,there is an urgent need to explore novel intervention strategies addressing both diabetes and its complications.The human intestinal microbiota,often referred to as the"second genome",exhibits significant diversity and plays a pivotal role in insulin resistance,glucose and lipid metabolism,and inflammatory response.Notably,Li and Guo have elucidated the involvement of intestinal flora in the pathogenesis of type 2 diabetes mellitus(T2DM)and proposed a novel therapeutic approach targeting intestinal microbes.This advancement enhances our comprehension of the multifaceted and multi-target regulation of T2DM by intestinal microflora,thereby offering fresh avenues for understanding its pathogenesis and clinical management.This letter briefly summarizes the role of intestinal flora in T2DM based on findings from animal experiments and clinical studies.Additionally,it discusses the potential clinical applications and challenges associated with targeting intestinal flora as therapeutic interventions.
文摘Colorectal cancer, as a common malignant tumor, has been increasing in incidence year by year and has become one of the leading causes of death worldwide. Meanwhile, researchers have found a close relationship between dysbiosis of the gut microbiota and colorectal cancer, which has further triggered indepth exploration of the role of gut microbiota in the pathogenesis, diagnosis, and treatment of colorectal cancer. Studies have shown that there are specific microbial changes in colorectal cancer tissues, including enrichment or depletion of certain bacterial species, which may be associated with tumor growth, invasion, and metastasis. Additionally, gut microbiota has been found to be closely linked to tumor microenvironment, tumor immune response, chemotherapy drug metabolism, and other factors. In this context, it is imperative to study the gut microbiota in colorectal cancer. A comprehensive understanding of the interaction between gut microbiota and colorectal cancer is not only helpful in revealing novel mechanisms of colorectal cancer development, but also holds promise in providing new strategies and targets for early diagnosis, individualized treatment, and prevention of colorectal cancer. This review aims to thoroughly discuss the research progress of gut microbiota in colorectal cancer, including its compositional characteristics, its role in the occurrence and development of colorectal cancer, and its potential clinical applications. The goal is to provide references and insights for further research in this field.
基金National Natural Science Foundation of China (No.8176011)。
文摘In recent years,the relationship between intestinal flora and liver disease has become an important research direction of liver diseases.A growing body of evidence indicates that gut bacteria play a key role in the pathophysiology of liver disease,this article combed the at home and abroad in recent years,the changes of intestinal flora and autoimmune liver disease,alcoholic liver disease,fatty liver disease related to metabolism,hepatitis b viral hepatitis,cirrhosis and liver cancer occurrence and progress of relationship of related research,And the new progress of regulating intestinal microecology in the treatment of liver diseases.Dysregulation of intestinal flora plays an important role in the occurrence and development of liver diseases.Regulating intestinal flora to improve the prognosis of liver diseases will be an important development direction in the future.
文摘Diabetes mellitus(DM)is a complicated,globally expanding disease that is influenced by hereditary and environmental variables.Changes in modern society’s food choices,physical inactivity,and obesity are significant factors in the development of type 2 DM(T2DM).The association between changes in intestinal flora and numerous disorders,including obesity,diabetes,and cardiovascular diseases,has been studied in recent years.The purpose of this review is to analyze the mechanisms underlying the alteration of the diabetic patients’intestinal flora,as well as their therapeutic choices.Also included is a summary of the antidiabetic benefits of natural compounds demonstrated by studies.The short-chain fatty acids theory,the bile acid theory,and the endotoxin theory are all potential methods by which intestinal flora contributes to the establishment and progression of T2DM.Due to an intestinal flora imbalance,abnormalities in shortchain fatty acids and secondary bile acids have been found in diabetic patients.Additionally,metabolic endotoxemia with altering flora induces a systemic inflammatory response by stimulating the immune system via bacterial translocation.The agenda for diabetes treatment includes the use of short-chain fatty acids,probiotics,prebiotics in the diet,fecal bacteria transplantation,and antibiotics.Animal studies have proven the antidiabetic benefits of numerous bioactive substances,including Flavonoids,Alkaloids,Saponin,and Allicin.However,further research is required to contribute to the treatment of diabetes.
基金supported by the National Natural Science Foundation of China(81704193).
文摘External therapy,which has been used for millennia to treat disease,has now become the newest member of complementary and alternative therapies.A growing number of clinical studies and animal experiments have shown that external therapy exerts a positive effect on the intestinal flora.In this paper,we review the research related to external therapy on various systemic diseases and focus on changes in the intestinal flora.We found that studies on external therapy are dominated by acupuncture and tuina,primarily aimed at the treatment of digestive and neurological diseases.However,the deeper mechanism of regulation of the intestinal flora by external therapy has not yet been experimentally confirmed.
基金This work was supported by the National Basic Research Project(973 program,2012CB518200)General Program(81371232,81573251)of the Natural Science Foundation of China+1 种基金Special Key Programs for Drug R&D of China(2012ZX09102301-016,2014ZX09J14107-05B)Foundation of Joint Research Center for Translational Medicine between Beijing Proteome Research Center and Tianjin Baodi Hospital(TMRC201301).
文摘Human wellness is the ultimate goal of our efforts in improving the human life.Special foods are undoubtedly important in achieving human wellness.However,overeating significantly leads to obesity and diabetes.These chronic diseases will in turn affect the human wellness.Therefore,“dietary restriction and proper exercise”were introduced in the human daily life.Different foods cause various effects on the human health.The diversification of diet is a priority for nutritionists to keep our body healthy.To avoid diabetes mellitus,special foods for ketogenic diet,low-carbon diet,and low-calorie intake are also gradually attracting attention.In addition,the hypothesis that“hunger sensation comes from gut flora”brings new light to the research on the biological motivation for humans to eat food.This hypothesis has been gradually demonstrated using the flexible fasting technology by providing special foods,such as plant polysaccharides and dietary fibers.The response to food-needing signals from the gut flora to these foods demonstrates the importance of the gut flora in improving human wellness.The gut flora is probably an essential factor for translating the food-eating signals and converting the nutrition to our body.Therefore,“gut flora priority principle”is developed to guarantee human wellness.The 16S rRNA sequencing and mass spectrometric techniques can be used to identify the gut flora,which may guide us to a new era of human wellness based on gut flora wellness.
基金the Coordena??o de Aperfei?oamento de Pessoal de Nível Superior(CAPES)(process number 88882.451229/2019-01)for the scholarship granted to the first authorto Programa de ApoioàPós-Gradua??o(PROAP)for the financial support provided for data collection。
文摘The municipality of Boa Nova,in northeastern Brazil,is in an ecotone zone between the Caatinga and Atlantic Forest phytogeographic domains.The transition phytophysiognomy is seasonal forest and known locally as mata de cipó.In these phytophysiognomies there are lajedos,which are rock outcrops colonized by vegetation welladapted to extreme microclimatic variation and vegetation diversity is affected by the vegetation types of the surrounding areas.Due to the singularity of these environments and the relevance of floristic studies for conservation,this work aimed to identify the species richness and compare the similarity of the flora on four rock outcrops in Boa Nova.The flora was surveyed during exploratory walks along lajedos between 2016 and 2019.In total,162 species were identified on the Boa Nova outcrops.The flora has a composition and structure similar to semiarid outcrops,as well as endemic species that also occur in surrounding phytophysiomies.Despite the proximity,a similarity index revealed there is floristic dissimilarity between the areas.Nine new occurrences were recorded for the region,five species are threatened with extinction(Aosa gilgiana,Ficus cyclophylla,Hippeastrum stigmovittatum,Pleroma caatingae and Trixis pruskii),and 43 species are common in anthropogenic areas.This reinforces the importance of actions to conserve these areas.
文摘There are a number of reservoirs in the West Zarafshan Range, which have their own water-saturated, hydrographic, soil and ecological features. In this regard, their algoflora is also formed in its own way. As a result of research in this area, 217 species of algae were identified, belonging to 5 divisions, 11 classes, 37 orders, 57 families and 97 genera. The development and distribution of organisms in water is influenced by a number of external factors, such as: temperature, light, mineral and organic substances, active-reactive water environment, gas regime (oxygen, carbon dioxide, hydrogen sulfide), flow rate, change in water volume, degree transparency and wave formation.
基金supported by the National Key Research and Development Program of China(2019YFC1605000)the National Natural Science Foundation(1872904)。
文摘Increasing incidences showed that food allergies have attracted more and more attention from researchers.BALB/c mice were sensitized with wheat gluten combined with aluminum hydroxide adjuvant via intraperitoneal injection,transdermal sensitization,and oral gavage sensitization route.Results showed that all the three sensitization methods could induce allergic symptoms;increase the serum antibody(total immunoglobulin E(IgE),specific IgE,IgG,IgA)and histamine content;promote the secretion of Th2 cytokines(interleukin(IL)-4,IL-5,IL-13)and inflammatory factors(IL-6,IL-17 A,IL-10);and inhibit the production of Th1 cytokines(IFN-γ,IL-2).However,the allergic symptoms of mice sensitized by intraperitoneal injection were the most obvious among the three models.The level of serum antibodies in intraperitoneal injection group was significantly higher than control.Subsequently,16 S rRNA sequencing technology was used to analyze the intestinal flora of mice.The results showed that the abundance of Firmicutes in the wheat protein sensitized group was lower than that in the normal group,while the abundance of Bacteroidetes was higher,and Lactobacillus was the difference marker in normal group.Bacterial species diversity analysis showed that the species richness and diversity of intestinal flora in mice were decreased,the difference between mice induced by intraperitoneal injection and normal control group mice was the most significant.Taken together,these results show that among three sensitization methods used to build a mouse model with aluminum hydroxide as adjuvant,intraperitoneal injection is the comparably best way to build a mouse sensitization mode.
文摘This study set out to look into the palyno-morphological characteristics of specific allergenic species from diverse plant families in Samarkand, Uzbekistan. Six different species i.e. Betula pendula, Fraxinus pennsylvanica, Magnolia × soulangeana, Pinus brutia var. eldarica, Populus alba, Quercus robur were collected, pressed, identified, and then examined under a microscope. Under light microscope, both quantitative and qualitative characteristics of the pollen grains were recorded, including pollen type, pollen size, pollen shape (polar and equatorial view), P/E ratio, mesocolpium distance, exine thickness, colpi type, colpi length, and width. It was found that a warm spring in Uzbekistan causes an early commencement of the vegetative and dusting phases, in contrast to the climatic circumstances of the researched entities’ motherland (cold spring). Studies in aeropalinology and morphology enable the resolution of numerous environmental issues. The findings highlighted the importance of pollen morphology as an identifying aid and showed how the tested species’ palynological characteristics varied. In order to promote future phylogenetic description of the Uzbekistan flora, the current study may help us better understand the palynomorphological traits of native plants. This essay only briefly and inadequately addresses these issues. The information gathered will be used to make an atlas of allergic plants in Samarkand and an electronic warning system for the general public about the spread of pollen from the city’s allergenic plants in the future.
文摘Hepatocellular carcinoma (HCC) is one of the common major malignancies worldwide and has the third highest mortality rate of any malignancy. The current field of treatment for hepatocellular carcinoma is multidisciplinary in involvement and a combination of therapeutic approaches, among which immunotherapy is the treatment modality for advanced hepatocellular carcinoma. This review provides new ideas for developing immunotherapy regimens and improving the efficacy of immunotherapy for patients with advanced liver cancer by summarising the progress of intestinal flora in the immunotherapy of patients with liver cancer.
文摘Intestinal flora is a large and complex micro-ecosystem, and the growth and proliferation activities of different flora will have an important impact on the occurrence and development of gastric cancer and colorectal cancer as well as related treatment. This article reviews the latest research progress on the relationship between intestinal flora and gastric cancer and colorectal cancer.
文摘Intestinal flora are involved in environmental homeostasis and the development of many diseases within the human body. The liver, as one of the most important digestive organs in human beings, communicates with the intestinal flora and their metabolites in the intestine through the biliary system, the hepatic portal system, and the corpuscular circulation, an interrelated system known as the intestinal-hepatic axis. Hepatocellular carcinoma is the most common malignant tumor of the liver and one of the leading causes of cancer-related deaths worldwide. There is increasing evidence that intestinal flora plays an important role in the evolution of hepatocellular carcinoma. Besides, intestinal flora has great potential in the treatment of liver cancer. On this basis, this paper summarizes the relevant studies on the role of intestinal flora in the development of hepatocellular carcinoma and discusses its potential value in the treatment of hepatocellular carcinoma.
基金Supported by a grant from the Qingdao Science and Technology Bureau of China(No.19-6-1-9-nsh).
文摘Objective To investigate the differences in intestinal flora of patients with primary liver cancer and ofhealthy individuals and to investigate the effect of the differential flora on the development of liver cancer.Methods Overall, 67 patients with primary liver cancer who received systematic and complete treatmentbetween January 2019 and December 2020 at the Sixth People’s Hospital of Qingdao and had completeclinical data were enrolled in this study, and 26 individuals who were healthy on physical examination inthe same period were used as healthy controls. Macro genome and 16s ribosome Deoxyribo Nucleic Acid(rDNA) high-throughput sequencing were performed on the stool flora of the enrolled patients and controls,and the differences in the intestinal flora were analyzed using the LEfSe bioinformatics software.Results Compared with the control samples, all the tested patient samples showed statistically significantdifferences in the number of colonies of 5 bacterial phyla, 5 orders, 8 families, 11 genera, and 14 species(P < 0.05).Conclusion Compared with healthy people, patients with primary liver cancer have significant differencesin the intestinal flora composition. The alteration of the intestinal flora may be correlated with the occurrenceof primary liver cancer, and the intestinal flora may become a novel target for the prevention and treatmentof primary liver cancer.
文摘The purpose of this study is to generate essential scientific information regarding the floristic composition and the structures of the ecotone vegetation in the natural forest Codrul Secular Slătioara, because so far no such studies have been carried out in this reserve. Also, the results of this study provide important data, which can be the basis for the development of strategies for the conservation and sustainable use of some herbaceous species, valuable due to genetic and socio-economic, respectively of a regular forest monitoring program. The floristic studies were carried out in the 2020 to 2021 vegetation season. Based on the specialized literature, plant species were identified and then processed from the point of view of bioforms, floristic elements and ecological indices. The economic categories in which the identified species fall were also analyzed. Thus, a total of 292 species belonging to 46 botanical families were identified and their distribution by ecosystems is as follows: in the forest, 90 species were identified, in the lands adjacent to the forest, in the meadows, 202 species were found and in the area of border, 120 species of vascular plants were identified. Most of the species identified in the study area are hemicryptophytes, heliophiles, and eurytherms, which grow on dry to moderately moist, eurytrophic soils. More than 50% of the identified species belong to several categories of useful plants (fodder, medicinal, melliferous, edible).
文摘Because of the continuous improvement of the quality of life,the population of gout patients is also increasing,which seriously affects the quality of life of patients.Traditional Chinese medicine compound has a long history and remarkable clinical effect in treating gout patients,and has been widely used.Intestinal flora and its metabolites are the focus of current research,which can promote intestinal mucosal barrier,improve immunity and improve metabolism.The regulation of intestinal flora can reduce serum uric acid and inhibit inflammation to fight gouty arthritis.Moreover,the mechanism of intestinal flora is related to the spleen in Chinese medicine theory.Therefore,this study discusses the research mechanism and clinical application of traditional Chinese medicine compound in treating gout by regulating intestinal flora,and provides theoretical basis for the clinical application of traditional Chinese medicine and the expansion of new dosage forms.
文摘Objective:To investigate the intestinal flora in elderly patients with type 2 diabetes mellitus with early nephropathy.Methods:43 elderly patients with type 2 diabetes mellitus with early nephropathy(diabetic nephropathy group)and 51 elderly patients with type 2 diabetes mellitus(type 2 diabetes mellitus group)admitted to our hospital from January 2021 to October 2022 were retrospectively analyzed,with 39 healthy people who underwent a physical examination in our hospital during the same period as the control group.The fecal specimens of the three groups were collected,and the 16S rDNAs of bacteria in the fecal samples were extracted,amplified,and sequenced for intestinal flora operational taxonomic unit(OTU)classification and Alpha diversity analysis.Results:(1)Intestinal flora OTUs:there were 545 intestinal flora OTUs unique to the control group,424 intestinal flora OTUs unique to diabetic nephropathy,and 321 intestinal flora OTUs unique to the type 2 diabetes group.There were 403 intestinal flora OTUs common to the control group and diabetic nephropathy group,256 intestinal flora OTUs common to the control group and type 2 diabetes group,and 298 intestinal flora OTUs common to the type 2 diabetes group and diabetic nephropathy group.235 intestinal flora OTUs were common to all 3 groups of subjects.(2)Alpha diversity:The statistical analysis indicated that there was a statistically significant difference(P<0.05)in the Alpha diversity of intestinal flora,as assessed by the Ace index and Simpson’s index,among the three subject groups.However,no statistical significance(P>0.05)was observed when comparing the Chao 1 index and Shannon index.Further observation of the Ace index and Simpson index in the three groups revealed that both the diabetic nephropathy group and the type 2 diabetes mellitus group had lower values than the control group.Conclusion:The diversity of intestinal flora decreases in elderly patients with type 2 diabetes mellitus with early nephropathy.
