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Mesenchymal stem cells-extracellular vesicles alleviate pulmonary fibrosis by regulating immunomodulators

World Journal of Stem Cells 2024年第6期16卷 670-689页

作者： Ying Gao Mei-Fang Liu Yang Li Xi Liu Yu-Jie Cao Qian-Fa Long Jun Yu Jian-Ying Li department of Respiratory and Critical care Medicine Shaanxi Provincial Rehabilitation HospitalXi’an 710000Shaanxi ProvinceChina department of Respiratory and Critical care Medicine Second Affiliated Hospital of Ningxia Medical University(The First People’s Hospital of Yinchuan)Yinchuan 750001Ningxia Hui Autonomous RegionChina School of Clinical Medicine Xi’an Medical UniversityXi’an 710021Shaanxi ProvinceChina department of Respiratory and Critical care Medicine Xi’an Central HospitalXi’an 710000Shaanxi ProvinceChina department of Neurosurgery Xi’an Central HospitalXi’an 710000Shaanxi ProvinceChina department of Emergency Xi’an Central HospitalXi’an 710000Shaanxi ProvinceChina

BACKGROUND Pulmonary fibrosis(PF)is a chronic interstitial lung disease characterized by fibroblast proliferation and extracellular matrix formation,causing structural damage and lung *** cell therapy and mesenchymal stem cells-extracellular vesicles(MSC-EVs)offer new hope for PF *** To investigate the therapeutic potential of MSC-EVs in alleviating fibrosis,oxidative stress,and immune inflammation in A549 cells and bleomycin(BLM)-induced mouse *** The effect of MSC-EVs on A549 cells was assessed by fibrosis markers[collagen I andα-smooth muscle actin(α-SMA),oxidative stress regulators[nuclear factor E2-related factor 2(Nrf2)and heme oxygenase-1(HO-1),and inflammatory regu-lators[nuclear factor-kappaB(NF-κB)p65,interleukin(IL)-1β,and IL-2].Similarly,they were assessed in the lungs of mice where PF was induced by BLM after MSC-EV ***-EVs ion PF mice were detected by pathological staining and western ***-cell RNA sequencing was performed to investigate the effects of the MSC-EVs on gene expression profiles of macrophages after modeling in *** Transforming growth factor(TGF)-β1 enhanced fibrosis in A549 cells,significantly increasing collagen I andα-SMA ***,treatment with MSC-EVs demonstrated a remarkable alleviation of these ***,the expression of oxidative stress regulators,such as Nrf2 and HO-1,along with inflammatory regulators,including NF-κB p65 and IL-1β,were mitigated by MSC-EV ***,in a parallel manner,MSC-EVs exhibited a downregulatory impact on collagen deposition,oxidative stress injuries,and inflammatory-related cytokines in the lungs of mice with ***,the mRNA sequencing results suggested that BLM may induce PF in mice by upregulating pulmonary collagen fiber deposition and triggering an immune inflammatory *** findings collectively highlight the potential therapeutic efficacy of MSC-EVs in ameliorating fibrotic processes,oxidative stres

关键词： Mesenchymal stem cells Extracellular vesicles Pulmonary fibrosis Oxidative stress response Epithelial-mesenchymal transition

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Current perspectives of viral hepatitis

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World Journal of Gastroenterology 2024年第18期30卷 2402-2417页

作者： Daisuke Usuda Yuki Kaneoka Rikuo Ono Masashi Kato Yuto Sugawara Runa Shimizu Tomotari Inami Eri Nakajima Shiho Tsuge Riki Sakurai Kenji Kawai Shun Matsubara Risa Tanaka Makoto Suzuki Shintaro Shimozawa Yuta Hotchi Ippei Osugi Risa Katou Sakurako Ito Kentaro Mishima Akihiko Kondo Keiko Mizuno Hiroki Takami Takayuki Komatsu Tomohisa Nomura Manabu Sugita department of Emergency and Critical care Medicine Juntendo University Nerima HospitalNerima 177-8521TokyoJapan department of Sports Medicine Faculty of MedicineJuntendo UniversityBunkyo 113-8421TokyoJapan

Viral hepatitis represents a major danger to public health,and is a globally leading cause of *** five liver-specific viruses:Hepatitis A virus,hepatitis B virus,hepatitis C virus,hepatitis D virus,and hepatitis E virus,each have their own unique epidemiology,structural biology,transmission,endemic patterns,risk of liver complications,and response to antiviral *** remain few options for treatment,in spite of the increasing prevalence of viral-hepatitiscaused liver ***,chronic viral hepatitis is a leading worldwide cause of both liver-related morbidity and mortality,even though effective treatments are available that could reduce or prevent most patients’*** 2016,the World Health Organization released its plan to eliminate viral hepatitis as a public health threat by the year 2030,along with a discussion of current gaps and prospects for both regional and global eradication of viral ***,treatment is sufficiently able to prevent the disease from reaching advanced ***,future therapies must be extremely safe,and should ideally limit the period of treatment necessary.A better understanding of pathogenesis will prove beneficial in the development of potential treatment strategies targeting infections by viral *** review aims to summarize the current state of knowledge on each type of viral hepatitis,together with major innovations.

关键词： Hepatitis A virus Hepatitis B virus Hepatitis C virus Hepatitis D virus Hepatitis E virus Current perspectives

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Brain development in newborns and infants after ECMO

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World Journal of Pediatrics 2024年第6期20卷 556-568页

作者： Kai Yan Lu-Kun Tang Fei-Fan Xiao Peng Zhang Guo-Qiang Cheng Lai-Shuan Wang Chun-Mei Lu Meng-Meng Ge Li-Yuan Hu Yuan-Feng Zhou Tian-Tian Xiao Yan Xu Zhao-Qing Yin Gang-Feng Yan Guo-Ping Lu Qi Li Wen-Hao Zhou department of Neonatology Children Hospital of Fudan UniversityShanghai 201102China Kunming Medical University Affiliated Dehong Hospital DehongYunnanChina Graduate School Kunming Medical UniversityKunmingYunnanChina department of Neurology Children's Hospital of Fudan UniversityShanghaiChina School of Medicine Chengdu Women's and Children's Central HospitalUniversity of Electronic Science and Technology of ChinaChengduSichuanChina department of Intensive care Medicine Children's Hospital of Fudan UniversityShanghaiChina department of Intensive care Medicine The Sixth Medical Center of PLA General HospitalBeijingChina Key Laboratory of Neonatology National Health Care CommissionShanghaiChina

Background Extracorporeal membrane oxygenation(ECMO)not only significantly improves survival rates in severely ill neonates but also is associated with long-term neurodevelopmental *** systematically review the available literature on the neurodevelopmental outcomes of neonates and infants who have undergone ECMO treatment,with a focus on motor deficits,cognitive impairments,sensory impairments,and developmental *** review aims to understand the incidence,prevalence,and risk factors for these problems and to explore current nursing care and management *** sources A comprehensive literature search was performed across PubMed,EMBASE,and Web of Science using a wide array of keywords and phrases pertaining to ECMO,neonates,infants,and various facets of *** initial screening involved reviewing titles and abstracts to exclude irrelevant articles,followed by a full-text assessment of potentially relevant *** quality of each study was evaluated based on its research methodology and statistical ***,citation searches were conducted to identify potentially overlooked *** the focus was primarily on neonatal ECMO,studies involving children and adults were also included due to the limited availability of neonate-specific *** About 50%of neonates post-ECMO treatment exhibit varying degrees of brain injury,particularly in the frontal and temporoparietal white matter regions,often accompanied by neurological *** occur in 18%–23%of neonates within the first 24 hours,and bleeding events occur in 27%–60%of ECMO procedures,with up to 33%potentially experiencing ischemic *** some studies suggest that ECMO may negatively impact hearing and visual development,other studies have found no significant differences;hence,the influence of ECMO remains *** terms of cognitive,language,and intellectual development,ECMO treatment may be associated with potential deve

关键词： Brain development Extracorporeal membrane oxygenation Infants Neonates Neurological outcomes

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Effect of health education based on information-motivationbehavioral skills model on patients with unilateral vestibular dysfunction

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World Journal of Clinical Cases 2024年第5期12卷 903-912页

作者： Qiong Shi Ruo-Jun Wu Jiang Liu department of Neurology Wuahan Fourth HospitalWuhan 430000Hubei ProvinceChina department of Critical care Medicine Wuhan No.1 HospitalWuhan 430033Hubei ProvinceChina

BACKGROUND Vestibular dysfunction(VH)is a common concomitant symptom of late peri-pheral vestibular lesions,which can be trauma,poisoning,infection,heredity,and neurodegeneration,but about 50%of the causes are *** study uses the information-motivation-behavioral skills(IMB)model for health education,effectively improve the quality of life,increase their self-confidence,reduce anxiety and depression,and effectively improve the psychological state of *** To explore the effect of health education based on the IMB model on the degree of vertigo,disability,anxiety and depression in patients with unilateral vestibular *** The clinical data of 80 patients with unilateral vestibular hypofunction from January 2019 to December 2021 were selected as the retrospective research objects,and they were divided into the control group and the observation group with 40 cases in each group according to different nursing *** them,the control group was given routine nursing health education and guidance,and the observation group was given health education and guidance based on the IMB *** changes in self-efficacy,anxiety and depression,and quality of life of patients with unilateral VH were compared between the two *** There was no significant difference in General Self-Efficacy Scale(GSES)scale scores between the two groups of patients before nursing(P>0.05),which was comparable;after nursing,the GSES scale scores of the two groups were higher than those before *** nursing group was higher than the control group,and the difference was statistically significant(P0.05).After nursing,the HADS score,anxiety,and depression subscale scores of the two groups of patients were lower than those before nursing,and the nursing group was lower than the co

关键词： Information-motivation-behavioral skills model Health education Vestibular function Quality of life Selfefficacy

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Combinative approach of transzonular triamcinolonemoxifloxacin and perioperative drops to minimize postoperative complications of cataract surgery

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International Journal of Ophthalmology(English edition) 2024年第5期17卷 845-851页

作者： Behnam Rabiee Muhamad Festok Michael Gaspari Abid Haseeb Aaila Chaudhry Layla Kamoun Imtiaz Chaudhry Iftikhar Chaudhry department of Ophthalmology Trinity Health Mid-AtlanticNazareth HospitalPhiladelphiaPA 19020USA IC Laser Eye care BensalemPA 19020USA

AIM: To investigate the effectiveness of combinationtherapy with transzonular triamcinolone-moxifloxacin andconventional perioperative drops in reducing postoperativecomplications of cataract surgery. METHODS: Electronic medical records of cataractsurgery patients (single surgeon) were reviewed fromJanuary 2018 to September 2021. The rate of postoperativecomplications including prolonged and/or recurrentpostoperative inflammation, endophthalmitis, cystoid macularedema (CME), and intraocular pressure (IOP) was comparedbetween the patients receiving combinative therapy andpatients receiving drops only. RESULTS: Totally 596 patients and 1057 eyes(Combinative-Therapy group 493 and Drop-Only group 564)were included in this study. Using combination therapyreduced the relative risk of postoperative inflammationby 26.9% (16.6% Combinative-Therapy vs 22.7% Drop-Only, P=0.013). The incidence of endophthalmitis was 0in Combinative-Therapy group vs 0.5% in Drop-Only group(relative risk reduction 100%), although not statisticallysignificant (P=0.10). The incidence of severe IOP spikeswas not significantly different between Combinative-Therapy (2.4%) and Drop-Only (1.6%) groups (P=0.33).The relative risk of postoperative CME was 51.4% less inthree months follow up visit in Combinative-Therapy group,although not statistically significant (P=0.07). The visualoutcome 1-month postop. (best corrected visual acuity) wassignificantly better in Combinative-Therapy (logMAR 0.10)compared to Drop-Only (logMAR 0.14) groups (P=0.02) whilethe baseline visual acuity was not significantly different. CONCLUSION: The combinative approach oftranszonular triamcinolone-moxifloxacin plus perioperativeeyedrops is an effective method to minimize postoperativeinflammation, with better visual outcomes. It couldpotentially reduce the risk of postoperative endophthalmitisand CME (near-significant P-values;larger studies couldanalyze better considering low incidence).

关键词： cataract endophthalmitis cystoid macular edema postoperative complications transzonular injection

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New strategy for distal limb perfusion in veno-arterial extracorporeal membrane oxygenation treatment: application of continuous renal replacement therapy tubing

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World Journal of Emergency Medicine 2024年第4期15卷 311-312页

作者： Zhaokun Fan Zhirong Zhang department of Intensive care Unit the First Affiliated Hospital of Zhejiang Chinese Medical University(Zhejiang Provincial Hospital of Chinese Medicine)Hangzhou 310006China

Extracorporeal membrane oxygenation(ECMO)is a technology that can temporarily take over the functions of the heart and *** kidney injury is a common issue in patients receiving ECMO treatment,with reported incidence rates ranging from 70%to 85%.[1]To maintain the balance of fluids and electrolytes in patients,continuous renal replacement therapy(CRRT)is frequently employed.

关键词： Acute treatment perfusion

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Association between serum estradiol level and appendicular lean mass index in middle-aged postmenopausal women

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World Journal of Orthopedics 2024年第1期15卷 45-51页

作者： Fang Jin Yan-Fei Wang Zhong-Xin Zhu department of Osteoporosis care and Control Xiaoshan Affiliated Hospital of Wenzhou Medical UniversityHangzhou 311200Zhejiang ProvinceChina

BACKGROUND Previous studies investigating the association between loss of estrogen at menopause and skeletal muscle mass came to contradictory *** To evaluate the association between serum estradiol level and appendicular lean mass index in middle-aged postmenopausal women using population-based *** This study included 673 postmenopausal women,aged 40-59 years,from the National Health and Nutrition Examination Survey between 2013 and *** multivariable linear regression models were used to evaluate the association between serum E2 Level and appendicular lean mass index(ALMI).When non-linear associations were found by using weighted generalized additive model and smooth curve fitting,two-piecewise linear regression models were further applied to examine the threshold *** There was a positive association between serum E2 level and *** to individuals in quartile 1 group,those in other quartiles had higher ALMI *** inverted U-shaped curve relationship between serum E2 Level and ALMI was found on performing weighted generalized additive model and smooth curve fitting,and the inflection point was identified as a serum E2 level of 85 pg/*** Our results demonstrated an inverted U-shaped curve relationship between serum E2 levels and ALMI in middle-aged postmenopausal women,suggesting that low serum E2 levels play an important in the loss of muscle mass in middleaged postmenopausal women.

关键词： Estradiol Skeletal muscle Menopause Health The National Health and Nutrition Examination Survey

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Microvesicles derived from mesenchymal stem cells inhibit acute respiratory distress syndrome-related pulmonary fibrosis in mouse partly through hepatocyte growth factor

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World Journal of Stem Cells 2024年第8期16卷 811-823页

作者： Qi-Hong Chen Ying Zhang Xue Gu Peng-Lei Yang Jun Yuan Li-Na Yu Jian-Mei Chen department of Critical care Medicine Jiangdu People’s Hospital of YangzhouJiangdu People’s Hospital Affiliated to Yangzhou UniversityYangzhou 225200Jiangsu ProvinceChina department of Critical care Medicine Jiangdu People’s Hospital of YangzhouYangzhou 225200Jiangsu ProvinceChina Institute of Translational Medicine Medical CollegeYangzhou UniversityYangzhou 225000Jiangsu ProvinceChina

BACKGROUND Pulmonary fibrosis is one of the main reasons for the high mortality rate among acute respiratory distress syndrome(ARDS)*** stromal cell-derived microvesicles(MSC-MVs)have been shown to exert antifibrotic effects in lung *** To investigate the effects and mechanisms of MSC-MVs on pulmonary fibrosis in ARDS mouse *** MSC-MVs with low hepatocyte growth factor(HGF)expression(siHGF-MSC-MVs)were obtained via lentivirus transfection and used to establish the ARDS pulmonary fibrosis mouse *** intubation,respiratory mechanics-related indicators were measured via an experimental small animal lung function *** of MSC-MVs in lung tissues was investigated by near-infrared live ***,western blotting,ELISA and other methods were used to detect expression of pulmonary fibrosis-related proteins and to compare effects on pulmonary fibrosis and fibrosis-related *** The MSC-MVs gradually migrated and homed to damaged lung tissues in the ARDS model *** with MSC-MVs significantly reduced lung injury and pulmonary fibrosis ***,low expression of HGF(siHGF-MSC-MVs)significantly inhibited the effects of MSC-MVs(P<0.05).Compared with the ARDS pulmonary fibrosis group,the MSC-MVs group exhibited suppressed expression of type I collagen antigen,type III collagen antigen,and the proteins transforming growth factor-βandα-smooth muscle actin,whereas the siHGF-MVs group exhibited significantly increased expression of these *** addition,pulmonary compliance and the pressure of oxygen/oxygen inhalation ratio were significantly lower in the MSC-MVs group,and the effects of the MSC-MVs were significantly inhibited by low HGF expression(all P<0.05).CONCLUSION MSC-MVs improved lung ventilation functions and inhibited pulmonary fibrosis in ARDS mice partly via HGF mRNA transfer.

关键词： Microvesicles derived from mesenchymal stem cells Acute respiratory distress syndrome Pulmonary fibrosis Hepatocyte growth factor Mesenchymal stromal cells

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Strategies for translating proteomics discoveries into drug discovery for dementia

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Neural Regeneration Research 2024年第1期19卷 132-139页

作者： Aditi Halder Eleanor Drummond School of Medical Sciences and Brain&Mind Center University of SydneyNSWSydneyAustralia department of Aged care Prince of Wales HospitalSydneyNSWAustralia

Tauopathies,diseases characterized by neuropathological aggregates of tau including Alzheimer's disease and subtypes of fro ntotemporal dementia,make up the vast majority of dementia *** there have been recent developments in tauopathy biomarkers and disease-modifying treatments,ongoing progress is required to ensure these are effective,economical,and accessible for the globally ageing *** such,continued identification of new potential drug targets and biomarkers is critical."Big data"studies,such as proteomics,can generate information on thousands of possible new targets for dementia diagnostics and therapeutics,but currently remain underutilized due to the lack of a clear process by which targets are selected for future drug *** this review,we discuss current tauopathy biomarkers and therapeutics,and highlight areas in need of improvement,particularly when addressing the needs of frail,comorbid and cognitively impaired *** highlight biomarkers which have been developed from proteomic data,and outline possible future directions in this *** propose new criteria by which potential targets in proteomics studies can be objectively ranked as favorable for drug development,and demonstrate its application to our group's recent tau interactome dataset as an example.

关键词： Alzheimer's disease biomarkers drug development drug discovery druggability frontotemporal dementia interactome proteomics tau tauopathies therapeutics

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The action mechanism by which C1q/tumor necrosis factor-related protein-6 alleviates cerebral ischemia/reperfusion injury in diabetic mice

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Neural Regeneration Research 2024年第9期19卷 2019-2026页

作者： Bo Zhao Mei Li Bingyu Li Yanan Li Qianni Shen Jiabao Hou Yang Wu Lijuan Gu Wenwei Gao department of Anesthesiology Renmin Hospital of Wuhan UniversityWuhanHubei ProvinceChina Central Laboratory Renmin Hospital of Wuhan UniversityWuhanHubei ProvinceChina department of Critical care Medicine Renmin Hospital of Wuhan UniversityWuhanHubei ProvinceChina

Studies have shown that C1q/tumor necrosis factor-related protein-6 (CTRP6) can alleviate renal ischemia/reperfusion injury in mice. However, its role in the brain remains poorly understood. To investigate the role of CTRP6 in cerebral ischemia/reperfusion injury associated with diabetes mellitus, a diabetes mellitus mouse model of cerebral ischemia/reperfusion injury was established by occlusion of the middle cerebral artery. To overexpress CTRP6 in the brain, an adeno-associated virus carrying CTRP6 was injected into the lateral ventricle. The result was that oxygen injury and inflammation in brain tissue were clearly attenuated, and the number of neurons was greatly reduced. In vitro experiments showed that CTRP6 knockout exacerbated oxidative damage, inflammatory reaction, and apoptosis in cerebral cortical neurons in high glucose hypoxia-simulated diabetic cerebral ischemia/reperfusion injury. CTRP6 overexpression enhanced the sirtuin-1 signaling pathway in diabetic brains after ischemia/reperfusion injury. To investigate the mechanism underlying these effects, we examined mice with depletion of brain tissue-specific sirtuin-1. CTRP6-like protection was achieved by activating the sirtuin-1 signaling pathway. Taken together, these results indicate that CTRP6 likely attenuates cerebral ischemia/reperfusion injury through activation of the sirtuin-1 signaling pathway.

关键词： brain C1q/tumor necrosis factor-related protein-6 cerebral apoptosis diabetes inflammation ischemia/reperfusion injury neuron neuroprotection oxidative damage Sirt1

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