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Atomic-iodine-substituted polydiacetylene nanospheres with boosted intersystem crossing and nonradiative transition through complete radiative transition blockade for ultraeffective phototherapy
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作者 Dan Zhao Lingling Zhang +6 位作者 Mingming Yin Zhenyan He Fang Fang Minle Zhan Sidan Tian Fanling Meng Liang Luo 《Aggregate》 EI CAS 2024年第5期287-296,共10页
The energy dissipation pathways of a photosensitizer for phototherapies,including photodynamic therapy(PDT)and photothermal therapy(PTT),compete directly with that of itsfluorescence(FL)emission.Enriching heavy atoms o... The energy dissipation pathways of a photosensitizer for phototherapies,including photodynamic therapy(PDT)and photothermal therapy(PTT),compete directly with that of itsfluorescence(FL)emission.Enriching heavy atoms on theπ-conjugated systems and aggregation-caused quenching are two effective methods to turn off the FL emission of photosensitizers,which is expected to boost the inter-system crossing(for PDT)and nonradiative transition(for PTT)of photosensitizers for maximized phototherapeutic efficacy.Following this approach,an all-iodine-substituted polydiacetylene aggregate poly(diiododiacetylene)(PIDA)has been developed,which shows a superior near infrared absorption(ε_(808nm)=26.1 g^(-1) cm^(-1) L)with completely blocked FL,as well as high efficiency of reactive oxygen species generation(nearly 45 folds of indocyanine green)and photothermal conversion(33.4%).To make the insolublefibrillar PIDA aggregates favorable for systemic administration,they are converted into nanospheres through a pre-polymerization morphology transformation strategy.The in vivo study on a 4T1 tumor-bearing mouse model demonstrates that PIDA nanospheres can almost eliminate the tumor entirely in 16 days and prolong the survival time of mice to over 60 days,validating their effective phototherapeutic response through the strategy of inhibiting FL for boosted intersystem crossing and nonradiative transition. 展开更多
关键词 blockedfluorescence emission heavy atom effect morphology transformation phototherapy polydi-acetylene aggregate
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Biomimetic biomineralization nanoplatform-mediated differentiation therapy and phototherapy for cancer stem cell inhibition and antitumor immunity activation
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作者 Shan Gao Meng Liu +7 位作者 Dongzhu Liu Xinru Kong Yuelin Fang Yingying Li Hang Wu Jianbo Ji Xiaoye Yang Guangxi Zhai 《Asian Journal of Pharmaceutical Sciences》 SCIE CAS 2023年第5期164-184,共21页
Growing evidence suggests that the presence of cancer stem cells(CSCs)is a major challenge in current tumor treatments,especially the transition from non-CSCs to differentiation of CSCs for evading conventional therap... Growing evidence suggests that the presence of cancer stem cells(CSCs)is a major challenge in current tumor treatments,especially the transition from non-CSCs to differentiation of CSCs for evading conventional therapies and driving metastasis.Here we propose a therapeutic strategy of synergistic differentiation therapy and phototherapy to induce differentiation of CSCs into mature tumor cells by differentiation inducers and synergistic elimination of them and normal cancer cells through phototherapy.In this work,we synthesized a biomimetic nanoplatform loaded with IR-780 and all-trans retinoic acid(ATRA)via biomineralization.This method can integrate aluminum ions into small-sized protein carriers to form nanoclusters,which undergo responsive degradation under acidic conditions and facilitate deep tumor penetration.With the help of CSC differentiation induced by ATRA,IR-780 inhibited the self-renewal of CSCs and cancer progression by generating hyperthermia and reactive oxygen species in a synergistic manner.Furthermore,ATRA can boost immunogenic cell death induced by phototherapy,thereby strongly causing a systemic anti-tumor immune response and efficiently eliminating CSCs and tumor cells.Taken together,this dual strategy represents a new paradigm of targeted eradication of CSCs and tumors by inducing CSC differentiation,improving photothermal therapy/photodynamic therapy and enhancing antitumor immunity. 展开更多
关键词 Cancer stem cells Differentiation therapy phototherapy BIOMINERALIZATION Immunogenic cell death
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Nb2C MXene-Functionalized Scaffolds Enables Osteosarcoma Phototherapy and Angiogenesis/Osteogenesis of Bone Defects 被引量:7
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作者 Junhui Yin Shanshan Pan +6 位作者 Xiang Guo Youshui Gao Daoyu Zhu Qianhao Yang Junjie Gao Changqing Zhang Yu Chen 《Nano-Micro Letters》 SCIE EI CAS CSCD 2021年第2期162-179,共18页
Early surgical resection and chemotherapy of bone cancer are commonly used in the treatment of bone tumor,but it is still highly challenging to prevent recurrence and fill the bone defect caused by the resection site.... Early surgical resection and chemotherapy of bone cancer are commonly used in the treatment of bone tumor,but it is still highly challenging to prevent recurrence and fill the bone defect caused by the resection site.In this work,we report a rational integration of photonic-responsive two-dimensional(2D)ultrathin niobium carbide(Nb2C)MXene nanosheets(NSs)into the 3D-printed bone-mimetic scaffolds(NBGS)for osteosarcoma treatment.The integrated 2D Nb2C-MXene NSs feature specific photonic response in the second near-infrared(NIR-II)biowindow with high tissue-penetrating depth,making it highly efficient in killing bone cancer cells.Importantly,Nb-based species released by the biodegradation of Nb2C MXene can obviously promote the neogenesis and migration of blood vessels in the defect site,which can transport more oxygen,vitamins and energy around the bone defect for the reparative process,and gather more immune cells around the defect site to accelerate the degradation of NBGS.The degradation of NBGS provides sufficient space for the bone remodeling.Besides,calcium and phosphate released during the degradation of the scaffold can promote the mineralization of new bone tissue.The intrinsic multifunctionality of killing bone tumor cell and promoting angiogenesis and bone regeneration makes the engineered Nb2C MXeneintegrated composite scaffolds a distinctive implanting biomaterial on the efficient treatment of bone tumor. 展开更多
关键词 Nb2C MXene 3D printing phototherapy OSTEOSARCOMA VASCULARIZATION
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A MXene-Based Bionic Cascaded-Enzyme Nanoreactor for Tumor Phototherapy/Enzyme Dynamic Therapy and Hypoxia-Activated Chemotherapy 被引量:2
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作者 Xiaoge Zhang Lili Cheng +5 位作者 Yao Lu Junjie Tang Qijun Lv Xiaomei Chen You Chen Jie Liu 《Nano-Micro Letters》 SCIE EI CAS CSCD 2022年第2期24-44,共21页
The enzyme-mediated elevation of reactive oxygen species(ROS)at the tumor sites has become an emerging strategy for regulating intracellular redox status for anticancer treatment.Herein,we proposed a camouflaged bioni... The enzyme-mediated elevation of reactive oxygen species(ROS)at the tumor sites has become an emerging strategy for regulating intracellular redox status for anticancer treatment.Herein,we proposed a camouflaged bionic cascaded-enzyme nanoreactor based on Ti_(3)C_(2)nanosheets for combined tumor enzyme dynamic therapy(EDT),phototherapy and deoxygenation-activated chemotherapy.Briefly,glucose oxidase(GOX)and chloroperoxidase(CPO)were chemically conjugated onto Ti_(3)C_(2)nanosheets,where the deoxygenation-activated drug tirapazamine(TPZ)was also loaded,and the Ti_(3)C_(2)-GOX-CPO/TPZ(TGCT)was embedded into nanosized cancer cell-derived membrane vesicles with high-expressed CD47(m_eTGCT).Due to biomimetic membrane camouflage and CD47 overexpression,m_eTGCT exhibited superior immune escape and homologous targeting capacities,which could effectively enhance the tumor preferential targeting and internalization.Once internalized into tumor cells,the cascade reaction of GOX and CPO could generate HClO for efficient EDT.Simultaneously,additional laser irradiation could accelerate the enzymic-catalytic reaction rate and increase the generation of singlet oxygen(~1O_(2)).Furthermore,local hypoxia environment with the oxygen depletion by EDT would activate deoxygenation-sensitive prodrug for additional chemotherapy.Consequently,m_eTGCT exhibits amplified synergistic therapeutic effects of tumor phototherapy,EDT and chemotherapy for efficient tumor inhibition.This intelligent cascaded-enzyme nanoreactor provides a promising approach to achieve concurrent and significant antitumor therapy. 展开更多
关键词 Cascaded-enzyme nanoreactor Deoxygenation-sensitive prodrugs Tumor enzyme dynamic therapy phototherapy CD47
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Evaluation of Self-Treatment of Acne Using Silk’n Blue Phototherapy System 被引量:1
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作者 Judith Hellman Cielo A. Ramirez 《Journal of Cosmetics, Dermatological Sciences and Applications》 2014年第3期179-184,共6页
Background: At-home phototherapy devices for the treatment of acne have emerged as an appealing treatment option and as an effective adjunct treatment to existing modalities. The principal goal of the study was to det... Background: At-home phototherapy devices for the treatment of acne have emerged as an appealing treatment option and as an effective adjunct treatment to existing modalities. The principal goal of the study was to determine the changes in the number of inflammatory lesions in acne patients. Methods: Patients received instruction for daily at-home use of Silk’n Blue device for 12 weeks. Follow-up visits were conducted at 1 and 3 months to collect data. Results: Fifteen subjects with mild to severe cases experienced improvement over the course of the trial. The decrease in mean inflammatory acne counts (from 41.26 to 24.46) and mean percent reduction (41.8%) were statistically significant (p < 0.001). Some participants experienced percent reductions as great as 67%. No adverse events were recorded. Conclusions: The Silk’n Blue device is a safe and effective modality for at-home treatment of mild, moderate, and severe inflammatory acne vulgaris with proper use. 展开更多
关键词 ACNE BLUE LIGHT THERAPY LED phototherapy
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Efficacy of combination of localized closure,ethacridine lactate dressing,and phototherapy in treatment of severe extravasation injuries:A case series
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作者 Yan-Xu Lu Ying Wu +3 位作者 Peng-Fei Liang Rong-Chan Wu Ling-Yun Tian Hui-Ying Mo 《World Journal of Clinical Cases》 SCIE 2021年第18期4599-4606,共8页
BACKGROUND The management of severe extravasation injuries is still controversial.Extravasation injuries can be treated in many ways.AIM To present a series of patients with severe extravasation injuries due to infusi... BACKGROUND The management of severe extravasation injuries is still controversial.Extravasation injuries can be treated in many ways.AIM To present a series of patients with severe extravasation injuries due to infusion who were managed with ethacridine lactate dressing combined with localized closure and phototherapy.METHODS In this study,we evaluated the data of eight patients,including six from the Department of Burn,one(with colorectal carcinoma)from the Veteran Cadre Department,and one(with leukemia)from the Hematology Department.Of these,three patients were male and five were female.Age of the patients ranged from 10 mo to 72 years,including two children(10 and 19 mo of age).In this study,the infusion was stopped immediately when the extravasation was identified.The extravasation event was managed routinely using a blocking solution.A ring-shaped localized closure was performed using the blocking agents.Moreover,ethacridine lactate dressing and phototherapy were applied for 3-5 d.RESULTS In this study,the drugs contained in the infusates were iodixanol,norepinephrine,alprostadil,amino acids,fat emulsion,cefoselis,cefoxitin,and potassium chloride+concentrated sodium chloride.All of the patients achieved complete healing after treatment and no obvious adverse reactions were observed.CONCLUSION The treatment of severe extravasation injuries using a combination of localized closure,ethacridine lactate dressing,and phototherapy resulted in satisfactory outcomes in patients. 展开更多
关键词 EXTRAVASATION CLOSURE Ethacridine lactate DRESSING phototherapy TREATMENT
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Uncertainty contribution at NIS phototherapy irradiance facility
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作者 Alaa-Eldin A Abd-Elmageed Sameh M Reda 《Journal of Measurement Science and Instrumentation》 CAS CSCD 2015年第4期332-335,共4页
Phototherapy lamps are the most effective and safest in the treatment of several medical treatments such as bilirubin. They transfer radiant energy expressed by irradiance unit in W/m2 into the skin specifically to ac... Phototherapy lamps are the most effective and safest in the treatment of several medical treatments such as bilirubin. They transfer radiant energy expressed by irradiance unit in W/m2 into the skin specifically to achieve a therapeutic reduction in the bilirubin concentration in the blood. National Institute for Standards (NIS) in Egypt builds up a radiometric method to en- sure the competence of phototherapy sources (luminaire) to the standard international and national requirements. Hence, NIS provides traceability to customer through unbroken chain of phototherapy radiometer calibrated as irradiance response in W/m2. Uncertainty model including all parameters accompanied with the measurements is studied. 展开更多
关键词 IRRADIANCE jaundice treatment phototherapy luminaire UNCERTAINTY
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Evaluation of the Photo-Protection of Eye-Patch Protectors Used in Phototherapy
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作者 邓咏梅 易洁伦 +1 位作者 郭绮莲 黄小珍 《Journal of Donghua University(English Edition)》 EI CAS 2010年第1期1-5,共5页
An evaluation method for the practical photo-protection of eye-patch protectors (EPs) used in phototherapy for neonatal jaundice is developed.The protecting condition of neonatal eyes using EPs under typical photother... An evaluation method for the practical photo-protection of eye-patch protectors (EPs) used in phototherapy for neonatal jaundice is developed.The protecting condition of neonatal eyes using EPs under typical phototherapy light is simulated.The simulation system consists of a neonatal head manikin,an International Light ILT 900 wideband rapid portable spectroradiometer,a standard Air Shields Isolette incubator,and a Medela fluorescent phototherapy unit.The results show that the practical protection of neonatal eyes,provided by EPs which are affected by the material characteristic,shape design,and wearing condition,is comprehensively illustrated using the indices of illuminance (Ev in lux unit) and the spectral irradiance (E in μW/(cm2·nm) unit). 展开更多
关键词 eye-patch protector EP EVALUATION photo- protection phototherapy
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Clinical effects of phototherapy combined with albumin administration on hyperbilirubinemia in newborns
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作者 GAO Yan LI Shenmei +2 位作者 XU Yunyun LIU Qiuju ZHANG Yiyuan 《中西医结合护理(中英文)》 2018年第3期1-3,共3页
Objective To investigate the effects of phototherapy combined with albumin administration on hyperbilirubinemia in newborns. Methods Totally 64 newborns with neonatal hyperbilirubinemia were randomly divided into the ... Objective To investigate the effects of phototherapy combined with albumin administration on hyperbilirubinemia in newborns. Methods Totally 64 newborns with neonatal hyperbilirubinemia were randomly divided into the control group and the study group,with 32 cases in each group. The newborns in control group received phototherapy and routine care,while those in study group were administrated with intravenous injection of albumin in addition to phototherapy and routine care. The concentration of total serum bilirubin,newborns' body weight and amount of milk intake were measured before and after phototherapy. Results There was a significant difference in the milk intake between two groups after phototherapy( P < 0. 05). There was no significant difference in the body weight or total serum bilirubin level of newborns between two groups after phototherapy( P > 0. 05). Conclusion Combined application of phothotherapy and albumin administration on neonatal hyperbilirubinemia could promote the newborns' appetite and improve the recovery of the neonates,but the effect on reducing blood bilirubin level and weight gain needs further study. 展开更多
关键词 NEONATAL HYPERBILIRUBINEMIA ALBUMIN phototherapy weight gain
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Roles of reinforced nerve conduits and low-level laser phototherapy for long gap peripheral nerve repair
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作者 Bai-Shuan Liu Tsung-Bin Huang Shiuh-Chuan Chan 《Neural Regeneration Research》 SCIE CAS CSCD 2014年第12期1180-1182,共3页
Peripheral nerve injuries are common in clinical practice because of traumas such as crushing and sectioning. Lesions of the nerve structure result in lost or diminished sensitivity and/or motor activity in the innerv... Peripheral nerve injuries are common in clinical practice because of traumas such as crushing and sectioning. Lesions of the nerve structure result in lost or diminished sensitivity and/or motor activity in the innervated territory. The degree of lesion depends on the specific nerve involved, the magnitude and type of pres- sure exerted, and the duration of the compression. The results of such injuries commonly include axonal degeneration and retro- grade degeneration of the corresponding neurons in the spinal medulla, followed by very slow regeneration (Rochkind et al., 2001). The adverse effects on the daily activities of patients with a peripheral nerve injury are a determining factor in establishing the goals of early recovery (Rodriguez et al., 2004). 展开更多
关键词 Roles of reinforced nerve conduits and low-level laser phototherapy for long gap peripheral nerve repair GGT
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Does conventional phototherapy have any effect on platelet count in full term neonates with indirect hyperbilirubinemia?
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作者 Alireza Monsef Fatemeh Eghbalian 《Health》 2011年第12期709-711,共3页
This study evaluates the platelet count changes in neonates with hyperbillirubinemia who received phototherapy. In this Prospective Descriptive-cross sectional study 144 full term newborns with indirect hyperbillirubi... This study evaluates the platelet count changes in neonates with hyperbillirubinemia who received phototherapy. In this Prospective Descriptive-cross sectional study 144 full term newborns with indirect hyperbillirubinemia who received phototherapy in neonatal ward of Bessat hospital in Hamedan province of Iran were studied from September 2007 to February 2008 for evaluation the effect of phototherapy on platelet count. The platelet had counted by cell counter and it had controlled by slide platelet counting. The data were analyzed using spss version. 13 and compared with paired-samples T test. 58 neonates (40.3%) were boys and 86 (59.7%) were girls. The mean age of neonates was 7.04 +/– 5.49 days (2 - 29 days). The mean (± SD) platelet counts were 287833.3 + 92332.4 before and 299444.4 + 98565.2 after phototherapy. Analysis of data with paired T test showed significant difference in platelet count before and after phototherapy. Mean platelet count after phototherapy was higher than that before treatment. The study had propounded that mean platelet count increased with extended mean phototherapy time. This study had propounded this hypothesis that phototherapy in full term icteric newborns leads to increased platelet count. It may be due to accelerated platelet turnover in peripheral microvasculature with adequate platelet reserve. 展开更多
关键词 NEWBORN phototherapy PLATELET Coun
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Ghost Haemoglobin Affecting the Efficacy of Phototherapy
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作者 Azizullah Langah Sara Sadiq Ali Akbar Siyal 《International Journal of Clinical Medicine》 2019年第10期523-530,共8页
Introduction: Phototherapy is the treatment of choice for neonatal hyperbilirubinemia. It converts the unconjugated bilirubin from polar and neurotoxic Z-Z-bilirubin to the more polar photobilirubin. It has been hypot... Introduction: Phototherapy is the treatment of choice for neonatal hyperbilirubinemia. It converts the unconjugated bilirubin from polar and neurotoxic Z-Z-bilirubin to the more polar photobilirubin. It has been hypothesized that high level of hemoglobin or hematocrit interferes in the effectiveness of phototherapy. The objective of the current study is to find out the association of hemoglobin/hematocrit to change in total serum bilirubin concentration during phototherapy. Methods: A prospective cohort study was conducted on 296 neonates with uncomplicated hyperbilirubinemia. Before initiating the phototherapy, hemoglobin, hematocrit and total serum bilirubin levels were measured. After treating the neonates with phototherapy using LED-light for 24 hours, the total serum bilirubin level was measured again. The data were analyzed by using SPSS version-20. Results: The majority of study participants were male (60.8%), with mean postnatal age of 4.66 &plusmn;1.65, having mean birth weight of 2.41 &plusmn;0.41. Considering Pearson correlation, the hemoglobin had a significant inverse association with &Delta;TsB0-24 while birth weight and postnatal age also had inverse association but p-values were non-significant, while TsB0 had presented a very weak but significant positive association. The results might be evident of the fact that increase in hemoglobin concentration results in minimal change in total serum bilirubin concentration during phototherapy. Conclusion: Current study found a significant effect of hemoglobin on efficacy of phototherapy, as the change in total serum bilirubin concentration is inversely correlated with the level of hemoglobin. This is important for the physician in treating neonates with hyperbilirubinemia by using phototherapy. 展开更多
关键词 HYPERBILIRUBINEMIA NEONATAL JAUNDICE phototherapy
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Percentile analysis of plasma total bilirubin—How different will the rate of phototherapy for jaundice of neonates be by different standards?
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作者 Yoshiro Nagao Hiroshi Watanabe Syun-ichiro Yokota 《Open Journal of Pediatrics》 2012年第2期133-137,共5页
Phototherapy of a jaundiced neonate is usually started when bilirubin exceeds a threshold in the standard. There are several standards used in the developed countries even though the guideline of American Academy of P... Phototherapy of a jaundiced neonate is usually started when bilirubin exceeds a threshold in the standard. There are several standards used in the developed countries even though the guideline of American Academy of Pediatrics is considered to be a global standard. Although the purpose of phototherapy is the prevention of kernicterus, nowadays the prevalence of kernicterus in otherwise healthy term neonates in the developed countries is rare. Meanwhile several potential adverse effects of phototherapy have been reported. In the present study we tried to estimate how different the rate of phototherapy for the jaundice of neonates at lower risk of kernicterus would be by different standards. For this purpose, we utilized the records of plasma total bilirubin (TB) values of 1893 healthy neonates of 38 weeks and more which were measured on day 6 for the percentile analysis. However, this database did not include the TB values of the neonates who received phototherapy by day 6. Then the database was corrected with an assumption that TB on day 6 would have been normally distributed if no phototherapy had been performed. The mean and the standard deviation (SD) of corrected database were 11.29 mg/dl (193 μmol/l) and 3.63 mg/dl (62 μmol/l), respectively. Using a standard distribution with these mean and SD, the percents of TB values which exceed 18.0, 19.0, 20.0 and 21.0 mg/dl on day 6 were estimated 3.22%, 1.70%, 0.82% and 0.35%, respectively. Results of the present report would help to estimate the relative rate of phototherapy that is performed for the neonates who are term and otherwise healthy by different standards. 展开更多
关键词 Neonatal JAUNDICE BILIRUBIN phototherapy KERNICTERUS
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Effects of low intensity laser irradiation phototherapy on dental pulp constructs
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作者 Amr M Elnaghy Peter E Murray +5 位作者 Paul Bradley Melissa Marchesan Kenneth N Namerow Amany E Badr Youssry M El-Hawary Farid A Badria 《World Journal of Stomatology》 2013年第1期12-17,共6页
AIM: To investigate low intensity laser irradiation phototherapy(LILIP) on the proliferation, mineralization and degradation of dental pulp constructs.METHODS: Stem cells from human exfoliated deciduous teeth(SHED) we... AIM: To investigate low intensity laser irradiation phototherapy(LILIP) on the proliferation, mineralization and degradation of dental pulp constructs.METHODS: Stem cells from human exfoliated deciduous teeth(SHED) were grown to confluence and seeded on collagen scaffolds to create dental pulp constructs. LILIP was delivered to the dental pulp constructs using an 830 nm GaA IAs laser at an output power of 20 m W. The LILIP energy density was 0.4, 0.8, 1.2, and 2.4 J/cm2. After 8 d, the cell proliferation and degradation within the dental pulp constructs were measured using histologic criteria. After 28 d, the effect of LILIP on SHED mineralization was assessed by von Kossa staining.RESULTS: SHED proliferation within the dental pulp constructs varied after exposure to the 0.4, 0.8, 1.2,and 2.4 J/cm2 LILIP energy densities(P < 0.05). The maximum proliferation of SHED in nutrient deficient media was 218% after exposure to a 1.2 J/cm2 LILIP energy density. SHED grown in nutrient deficient media after exposure to a 0.4, 0.8, and 1.2 J/cm2 LILIP energy density, proliferated by 167-218% compared to the untreated(non-LILIP) control group(P < 0.05).SHED exposed to a 0.4, 0.8, and 1.2 J/cm2 LILIP energy density, and grown in optimal nutritional conditions and proliferated by 147%-164% compared to the untreated(non-LILIP) control group(P < 0.05). The exposure of SHED to the highest LILIP energy density(2.4 J/cm2) caused a reduction of the cell proliferation of up to 73% of the untreated(non-LILIP) control(P < 0.05). The amount of mineral produced by SHED increased over time up to 28 d(P < 0.05). The 0.8 and 1.2J/cm2 LILIP energy densities were the most effective at stimulating the increased the mineralization of the SHED from 150%-700% compared to untreated(nonLILIP) control over 28 d(P < 0.05). The degradation of dental pulp constructs was affected by LILIP(P <0.05). The dental pulp constructs grown in optimal nutritional conditions exposed to a 0.8 J/cm2 or 1.2 J/cm2 LILIP energy density had 13% to 16% more degradation than the untreated(non-LILIP) control groups(P < 0.05). The other LILIP energy densities caused a 1%degradation of dental pulp constructs in optimal nutritional conditions(P > 0.05).CONCLUSION: LILIP can enhance or reduce SHED proliferation, degradation and mineralization within dental pulp constructs. LILIP could promote the healing and regeneration of dental tissues. 展开更多
关键词 Dental pulp CELLS Proliferation LOW INTENSITY LASER LOW INTENSITY LASER irradiation phototherapy Stem CELLS from human exfoliated DECIDUOUS teeth
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Correlation between Late Cord Clamping and Phototherapy and Other Neonatal Unfavorable Outcomes: A Randomized Clinical Trial
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作者 Janete Vettorazzi Gabriela Françoes Rostirolla +3 位作者 Maria Alexandrina Zanatta Edimárlei Gonsales Valério Charles Francisco Ferreira Jose Geraldo Lopes Ramos 《Open Journal of Obstetrics and Gynecology》 2022年第3期193-200,共8页
Background: Recently, late umbilical cord clamping is generally recommended, which decreases neonatal anemia;however, it may also increase neonatal jaundice and some other poor outcomes. Objectives: We here attempted ... Background: Recently, late umbilical cord clamping is generally recommended, which decreases neonatal anemia;however, it may also increase neonatal jaundice and some other poor outcomes. Objectives: We here attempted to determine whether late clamping actually increases the incidence of phototherapy for jaundice and other poor outcomes of the term “low-risk newborns”. Methods: With the approval of the Brazilian Registry of Clinical Trials (REBEC), a total of 357 low-risk newborns (singleton, uncomplicated pregnancy/delivery, in a Brazilian public institution) were randomized into two groups: group I (n = 114): cord clamping 1 minute (early clamping) or group II (n = 243): cord clamping between 1 - 3 minutes (late clamping). Statistics were used appropriately (i.e., measures of central tendency, dispersion for continuous variables, Shapiro-Wilk, Mann-Whitney test, or Chi-square test). Results: Phototherapy was performed in 5.3% in both groups. Also, there were no statistical differences in the occurrence of secondary outcomes, such as sepsis, neonatal ICU admission, and transient tachypnea of the newborns: i.e., 0.9%, 15.8%, and 3.5%, respectively for group I versus 1.2%, 15.6%, and 5.8%, respectively for group II. Conclusion: Late umbilical cord clamping does not increase the need for phototherapy in low-risk neonates. This result corroborates the current recommendation of late cord clamping, whenever appropriate. 展开更多
关键词 phototherapy Neonatal Anemia Neonatal Jaundice Late Cord Clamping
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In situ autophagy regulation in synergy with phototherapy for breast cancer treatment
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作者 Huijuan Zhang Xiangyang Xuan +7 位作者 Yaping Wang Zijun Qi Kexuan Cao Yingmei Tian Chaoqun Wang Junbiao Chang Zhenzhong Zhang Lin Hou 《Acta Pharmaceutica Sinica B》 SCIE CAS CSCD 2024年第5期2317-2332,共16页
Autophagy is an important factor in reducing the efficacy of tumor phototherapy(including PTT and PDT).Accurate regulation of autophagy in tumor cells is a new strategy to improve the anti-tumor efficiency of PTT/PDT.... Autophagy is an important factor in reducing the efficacy of tumor phototherapy(including PTT and PDT).Accurate regulation of autophagy in tumor cells is a new strategy to improve the anti-tumor efficiency of PTT/PDT.This project intended to construct a tumor-activated autophagy regulator to efficiently block PTT/PDT-induced autophagy and realize synergistic sensitization to tumor phototherapy.To achieve this goal,we first synthesized TRANSFERRIN(Tf)biomimetic mineralized nano-tellurium(Tf-Te)as photosensitizer and then used disulfide bond reconstruction technology to induce Tf-Te self-assembly.The autophagy inhibitor hydroxychloroquine(HCQ)and iron ions carried by Tf were simultaneously loaded to prepare a tumor-responsive drug reservoir Tf-Te/HCQ.After entering breast cancer cells through the“self-guidance system”,Tf-Te/HCQ can generate hyperpyrexia and ROS under NIR laser irradiation,to efficiently induce PTT/PDT effect.Meanwhile,the disulfide bond broke down in response to GSH,and the nanoparticles disintegrated to release Fe2+and HCQ at fixed points.They simultaneously induce lysosomal alkalinization and increased osmotic pressure,effectively inhibit autophagy,and synergistically enhance the therapeutic effect of phototherapy.In vivo anti-tumor results have proved that the tumor inhibition rate of Tf-Te/HCQ can be as high as 88.6%on 4T1 tumor-bearing mice.This multifunctional drug delivery system might provide a new alternative for more precise and effective tumor phototherapy. 展开更多
关键词 AUTOPHAGY Tumor phototherapy Synergistic sensitization HCQ TRANSFERRIN Disulfide bond reconstruction GSH Biomimetic mineralized nano-tellurium
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Natural killer cell membrane doped supramolecular nanoplatform with immuno-modulatory functions for immuno-enhanced tumor phototherapy
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作者 Ying Gao Rong Zhou +5 位作者 Qiwen Wang Shaolong Qi Yuanyuan Lv Shuang Liu Jie Shen Guocan Yu 《Chinese Chemical Letters》 SCIE CAS CSCD 2024年第10期205-212,共8页
Photodynamic therapy(PDT)has garnered significant attention as a promising approach to cancer therapy,harnessing the combined benefits of localized light treatment and the accompanying host immune response.In this stu... Photodynamic therapy(PDT)has garnered significant attention as a promising approach to cancer therapy,harnessing the combined benefits of localized light treatment and the accompanying host immune response.In this study,we engineered an immuno-enhanced PDT nanoplatform,denoted as HM@p-MOF(hybrid membrane@porphyrin-metal organic framework).The core porphyrin-MOF was cloaked with a hybrid membrane derived from B16F10 cancer cells and NK cells,resulting in enhanced stability.In both in vitro and in vivo experiments,our finding demonstrated that the hybrid membrane conferred dual targeting capabilities to the nanoplatform,leveraging the unique properties of the B16F10 membrane and NK membrane to augment immunogenic cell death(ICD)induced by photodynamic effects.Additionally,in conjunction with the immunomodulatory functions of the NK cell membrane,we observed an expansion of in situ immune infiltration leading to a systemic immune response.The HM@p-MOF nanoplatform exhibited the capacity to not only inhibit the growth of mouse melanoma but also suppress metastasis.This innovative HM@p-MOF nanoplatform present a viable strategy to enhance phototherapeutic efficacy for both localized and metastatic tumors.It provides a direction for the fabrication of biomimetic nanomedicines possessing immuno-modulatory function. 展开更多
关键词 BIOMIMETIC Cell membrane Metal-organic framework phototherapy Tumor targeting
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Cisplatin-appended BODIPY for near infraredⅡfluorescent and photoacoustic imaging-guided synergistic phototherapy and chemotherapy of cancer
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作者 Xuejian Xing E Pang +5 位作者 Shaojing Zhao Tangna Pan Qiuxia Tan Benhua Wang Xiangzhi Song Minhuan Lan 《Chinese Chemical Letters》 SCIE CAS CSCD 2024年第3期352-357,共6页
Combining phototherapy and chemotherapy has been considered a promising modality for cancer therapy due to their synergistic effect.Herein,we developed three D-π-A-structured boron dipyrromethenes(BODIPYs)(named as B... Combining phototherapy and chemotherapy has been considered a promising modality for cancer therapy due to their synergistic effect.Herein,we developed three D-π-A-structured boron dipyrromethenes(BODIPYs)(named as B-B,B-C,and B-C-Pt).Due to their enlargedπ-conjugated structure and high intramolecular charge transfer effect,the synthesized BODIPYs had photothermal conversion capability,and their absorption and fluorescence spectra were red-shifted.The cisplatin-appended BODIPY(B-C-Pt)exhibited good singlet oxygen(^1O_(2))generation ability and near infrared(NIR)absorption and fluorescence(λ_(Abs)=748 nm,λ_(Em)=947 nm).After being encapsulated by distearoyl phosphoethanolamine polyethyleneglycol 2000(DSPE-PEG-2000),which could inhibit the H-aggregation of B-C-Pt,the absorption and fluorescence of the obtained B-C-Pt nanoparticles(NPs)were red-shifted to 762 and 985 nm,respectively.The^1O_(2)quantum yield and photothermal conversion efficiency of the B-C-Pt NPs were 4.0%and 40.6%,respectively.Moreover,B-C-Pt NPs had chemotherapeutic efficacy due to the presence of cisplatin.In vitro and in vivo studies further demonstrated that B-C-Pt NPs had synergistic therapeutic efficacy.Together,B-C-Pt NPs could be employed in NIRⅡfluorescent and photoacoustic imaging-guided synergistic phototherapy and chemotherapy for cancer treatment. 展开更多
关键词 phototherapy CHEMOTHERAPY CISPLATIN BODIPY NIRⅡfluorescent imaging
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