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Structural and functional connectivity of the whole brain and subnetworks in individuals with mild traumatic brain injury:predictors of patient prognosis

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Neural Regeneration Research 2024年第7期19卷 1553-1558页

作者： Sihong Huang Jungong Han Hairong Zheng Mengjun Li Chuxin Huang Xiaoyan Kui Jun Liu Department of Radiology The Second Xiangya HospitalCentral South UniversityChangshaHunan ProvinceChina Department of Computer Science Aberystwyth UniversityAberystwythCeredigionUK Shenzhen Institutes of Advanced Technology Chinese Academy of SciencesShenzhenGuangdong ProvinceChina School of Computer Science and Engineering Central South UniversityChangshaHunan ProvinceChina Department of Radiology Quality Control Center of Hunan ProvinceChangshaHunan ProvinceChina Clinical Research center for medical Imaging of Hunan Province ChangshaHunan ProvinceChina

Patients with mild traumatic brain injury have a diverse clinical presentation,and the underlying pathophysiology remains poorly *** resonance imaging is a non-invasive technique that has been widely utilized to investigate neuro biological markers after mild traumatic brain *** approach has emerged as a promising tool for investigating the pathogenesis of mild traumatic brain injury.G raph theory is a quantitative method of analyzing complex networks that has been widely used to study changes in brain structure and ***,most previous mild traumatic brain injury studies using graph theory have focused on specific populations,with limited exploration of simultaneous abnormalities in structural and functional *** that mild traumatic brain injury is the most common type of traumatic brain injury encounte red in clinical practice,further investigation of the patient characteristics and evolution of structural and functional connectivity is *** the present study,we explored whether abnormal structural and functional connectivity in the acute phase could serve as indicators of longitudinal changes in imaging data and cognitive function in patients with mild traumatic brain *** this longitudinal study,we enrolled 46 patients with mild traumatic brain injury who were assessed within 2 wee ks of injury,as well as 36 healthy ***-state functional magnetic resonance imaging and diffusion-weighted imaging data were acquired for graph theoretical network *** the acute phase,patients with mild traumatic brain injury demonstrated reduced structural connectivity in the dorsal attention *** than 3 months of followup data revealed signs of recovery in structural and functional connectivity,as well as cognitive function,in 22 out of the 46 ***,better cognitive function was associated with more efficient ***,our data indicated that small-worldness in the acute sta

关键词： cognitive function cross-section follow-up functional connectivity graph theory longitudinal study mild traumatic brain injury prediction small-worldness structural connectivity subnetworks whole brain network

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Establishment of NaLuF_(4):15%Tb-based low dose X-PDT agent and its application on efficient antitumor therapy

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international Journal of Minerals,Metallurgy and Materials 2024年第3期31卷 599-610页

作者： Yi Tian Zhiguang Fu Xiaosheng Zhu Chunjing Zhan Jinwei Hu Li Fan Chaojun Song Qian Yang Yu Wang Mei Shi Department of Radiation Oncology Xijing HospitalThe Fourth Military Medical UniversityXi’an 710032China Department of Oncology Air Force Medical CenterPLAThe Fourth Military Medical UniversityBeijing 100142China Department of Tumor Radiotherapy Air Force Medical CenterPLAThe Fourth Military Medical UniversityBeijing 100142China Department of Gastroenterology Air Force Hospital of Southern Theater CommandGuangzhou 510062China Department of Pharmaceutical Chemistry and Analysis School of PharmacyThe Fourth Military Medical UniversityXi’an 710032China School of Life Sciences Northwestern Polytechnical UniversityXi’an 710072China Institue of Materia Medica School of PharmacyThe Fourth Military Medical UniversityXi’an 710032China

X-ray excited photodynamic therapy(X-PDT)is the bravo answer of photodynamic therapy(PDT)for deep-seated tumors,as it employs X-ray as the irradiation source to overcome the limitation of light penetration ***,high X-ray irradiation dose caused organ lesions and side effects became the major barrier to X-PDT *** address this issue,this work employed a classic-al co-precipitation reaction to synthesize NaLuF_(4):15%Tb^(3+)(NLF)with an average particle size of(23.48±0.91)nm,which was then coupled with the photosensitizer merocyanine 540(MC540)to form the X-PDT system NLF-MC540 with high production of singlet *** system could induce antitumor efficacy to about 24%in relative low dose X-ray irradiation range(0.1-0.3 Gy).In vivo,when NLF-MC540 irradiated by 0.1 Gy X-ray,the tumor inhibition percentage reached 89.5%±5.7%.The therapeutic mechanism of low dose X-PDT was found.A significant increase of neutrophils in serum was found on the third day after *** immunohistochemical staining of tumor sections,the Ly6G^(+),CD8^(+),and CD11c^(+)cells infiltrated in the tumor microenvironment were *** the bilat-eral tumor model,the NLF-MC540 with 0.1 Gy X-ray irradiation could inhibit both the primary tumor and the distant tumor ***-tected by enzyme linked immunosorbent assay(ELISA),two cytokines IFN-γand TNF-αin serum were upregulated 7 and 6 times than negative control,*** by enzyme linked immune spot assay(ELISPOT),the number of immune cells attributable to the IFN-γand TNF-αlevels in the group of low dose X-PDT were 14 and 6 times greater than that in the negative control group,***,it conclude that low dose X-PDT system could successfully upregulate the levels of immune cells,stimulate the secretion of cy-tokines(especially IFN-γand TNF-α),activate antitumor immunity,and finally inhibit colon tumor growth.

关键词： X-ray excited photodynamic therapy singlet oxygen low dose X-Ray irradiation efficient antitumor therapy anti-tumor immunity

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Impact of umbelliprenin-containing niosome nanoparticles on VEGF-A and CTGF genes expression in retinal pigment epithelium cells

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international Journal of Ophthalmology(English edition) 2024年第1期17卷 7-15页

作者： Farzad Dastaviz Akram Vahidi Teymoor Khosravi Ayyoob Khosravi Mehdi Sheikh Arabi Abouzar Bagheri Mohsen Rashidi Morteza Oladnabi Stem Cell Research center Golestan University of Medical SciencesGorgan ***Iran Department of medical Genetics School of Advanced Technologies in MedicineGolestan University of Medical SciencesGorgan ***Iran Student Research Committee Golestan University of Medical SciencesGorgan ***Iran Department of Molecular Medicine Faculty of Advanced Medical TechnologiesGolestan University of Medical SciencesGorgan ***Iran Department of medical Nanotechnology Faculty of Advanced Medical TechnologiesGolestan University of Medical SciencesGorgan ***Iran Department of Clinical Biochemistry and Genetics Faculty of MedicineMazandaran University of Medical SciencesSari ***Iran Department Pharmacology Faculty of MedicineMazandaran University of Medical SciencesSari ***Iran Gorgan Congenital Malformations Research center Golestan University of Medical SciencesGorgan ***Iran

AIM:To investigate the impact of niosome nanoparticles carrying umbelliprenin(UMB),an anti-angiogenic and anti-inflammatory plant compound,on the expression of vascular endothelial growth factor(VEGF-A)and connective tissue growth factor(CTGF)genes in a human retinal pigment epithelium(RPE)-like retina-derived cell ***:UMB-containing niosomes were created,optimized,and ***-like cells were treated with free UMB and UMB-containing *** IC_(50)values of the treatments were determined using an MTT *** expression of VEGF-A and CTGF was evaluated using real-time polymerase chain reaction after RNA extraction and cDNA ***’characteristics,including drug entrapment efficiency,size,dispersion index,and zeta potential were *** UMB had an IC_(50)of 96.2μg/mL,while UMB-containing niosomes had an IC_(50)of 25μg/***:Treatment with UMB-containing niosomes and free UMB resulted in a significant reduction in VEGF-A expression compared to control cells(P=0.001).Additionally,UMB-containing niosomes demonstrated a significant reduction in CTGF expression compared to control cells(P=0.05).However,there was no significant reduction in the expression of both genes in cells treated with free ***:Both free UMB and niosome-encapsulated UMB inhibits VEGF-A and CTGF genes ***,the latter demonstrates significantly greater efficacy,potentially due to the lower UMB dosage and gradual *** findings have implications for anti-angiogenesis therapeutic approaches targeting age-related macular degeneration.

关键词： umbelliprenin niosome age-related macular degeneration vascular endothelial growth factor-A connective tissue growth factor

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Alkaline sphingomyelinase deficiency impairs intestinal mucosal barrier integrity and reduces antioxidant capacity in dextran sulfate sodium-induced colitis

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World Journal of Gastroenterology 2024年第10期30卷 1405-1419页

作者： Ye Tian Xin Li Xu Wang Si-Ting Pei Hong-Xin Pan Yu-Qi Cheng Yi-Chen Li Wen-Ting Cao Jin-Dong Ding Petersen Ping Zhang international School of Public Health and One Health Hainan Medical UniversityHaikou 571199Hainan ProvinceChina medical Laboratory Science and Technology College Harbin Medical University-Daqing CampusDaqing 163000Heilongjiang ProvinceChina Department of Laboratory Diagnosis Qiqihar Tuberculosis Control CenterQiqihar 161000Heilongjiang ProvinceChina Department of Public Health University of CopenhagenCopenhagen 1353Denmark Department of Public Health University of Southern DenmarkOdense 5000Denmark

BACKGROUND Ulcerative colitis is a chronic inflammatory disease of the colon with an unknown *** sphingomyelinase(alk-SMase)is specifically expressed by intestinal epithelial cells,and has been reported to play an anti-inflammatory ***,the underlying mechanism is still *** To explore the mechanism of alk-SMase anti-inflammatory effects on intestinal barrier function and oxidative stress in dextran sulfate sodium(DSS)-induced *** Mice were administered 3%DSS drinking water,and disease activity index was determined to evaluate the status of *** permeability was evaluated by gavage administration of fluorescein isothiocyanate dextran,and bacterial translocation was evaluated by measuring serum *** epithelial cell ultrastructure was observed by electron *** blotting and quantitative real-time reverse transcription-polymerase chain reaction were used to detect the expression of intestinal barrier proteins and mRNA,*** oxidant and antioxidant marker levels were analyzed using commercial kits to assess oxidative stress *** Compared to wild-type(WT)mice,inflammation and intestinal permeability in alk-SMase knockout(KO)mice were more severe beginning 4 d after DSS *** mRNA and protein levels of intestinal barrier proteins,including zonula occludens-1,occludin,claudin-3,claudin-5,claudin-8,mucin 2,and secretory immunoglobulin A,were significantly reduced on 4 d after DSS *** observations revealed progressive damage to the tight junctions of intestinal epithelial ***,by day 4,mitochondria appeared swollen and ***,compared to WT mice,serum malondialdehyde levels in KO mice were higher,and the antioxidant capacity was significantly *** expression of the transcription factor nuclear factor erythroid 2-related factor 2(Nrf2)in the colonic mucosal tissue of KO mice was significantly decr

关键词： Alkaline sphingomyelinase Intestinal mucosal barrier Antioxidant capacity Dextran sulfate sodium-induced colitis nuclear factor erythroid 2-related factor 2

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Penpulimab,an anti-PD-1 antibody,for heavily pretreated metastatic nasopharyngeal carcinoma:a single-arm phase II study

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Signal Transduction and Targeted Therapy 2024年第7期9卷 3056-3062页

作者： Xiaozhong Chen Wei Wang Qingfeng Zou Xiaodong Zhu Qin Lin Yi Jiang Yan Sun Liangfang Shen Lin Wang Guorong Zou Xiaoyan Lin Shaojun Lin Minying Li Ying Wang Ruilian Xu Rui Ao Rensheng Wang Haifeng Lin Shuang Huang Tingting Xu Wenting Li Mengying Xia Yu Xia Zhongmin Wang Baiyong Li Jingao Li Chaosu Hu Department of Radiation Oncology Cancer Hospital of the University of ChineseAcademy of Sciences(Zhejiang Cancer Hospital)HangzhouChina Gastroenterology and Urology Department II Hunan Cancer Hospital/the Affiliated Cancer Hospital of Xiangya School of MedicineCentral South UniversityChangshaChina Clinical Research center for Gastrointestinal Cancer in Hunan Province ChangshaChina Department of medical Oncology Affiliated Cancer Hospital&Institute of Guangzhou Medical UniversityGuangzhouChina Department of Radiation Oncology Guangxi Medical University Affiliated Tumor Hospital&Key Laboratory of Early Prevention and Treatment for Regional High Frequency Tumor(Guangxi Medical University)Ministry of Education&Guangxi Key Laboratory of Early Prevention and Treatment for Regional High Frequency TumorGuangxi Medical UniversityNanningChina Department of Radiation Oncology Cancer CenterThe First Affiliated Hospital of Xiamen UniversityXiamenChina Department of medical Oncology Cancer Hospital of Shantou University Medical CollegeShantouChina Department of Radiation Oncology Peking University Cancer Hospital&InstituteBeijingChina Department of Oncology Xiangya Hospital Central South UniversityChangshaChina Department of medical Oncology Hainan General HospitalHainan Affiliated Hospital of Hainan Medical UniversityHaikouChina Department of Oncology The Affiliated Panyu Central Hospital of Guangzhou Medical UniversityGuangzhouChina Department of medical Oncology Fujian Medical University Union HospitalFuzhouChina Department of Radiation Oncology Clinical Oncology School of Fujian Medical UniversityFujian Cancer HospitalFuzhouChina Department of Radiation Therapy for Thoracic Tumors Zhongshan City People’s HospitalZhongshanChina Tumor Radiotherapy center Chongqing University Cancer HospitalChongqing Cancer HospitalChongqing Cancer InstituteChongqingChina Department of Oncology Shenzhen People’s Hospital(The Second Clinical Medical CollegeJinan UniversityThe First Affiliated HospitalSo

Penpulimab is an anti-programmed cell death-1(PD-1)IgG1 antibody with no Fc gamma receptor(FcγR)binding activity,and thus theoretically reduced immune-related adverse events(irAEs)while maintaining *** single-arm,phase II trial conducted across 20 tertiary care centers in China enrolled adult patients with metastatic nasopharyngeal carcinoma(NPC)who had failed two or more lines of previous systemic *** received 200-mg penpulimab intravenously every 2 weeks(4 weeks per cycle)until disease progression or intolerable *** primary endpoint was objective response rate(ORR)per RECIST(version 1.1),as assessed by an independent radiological review *** secondary endpoints included progression-free survival(PFS)and overall survival(OS).One hundred thirty patients were enrolled and 125 were efficacy *** the data cutoff date(September 28,2022),1 patient achieved complete response and 34 patients attained partial *** ORR was 28.0%(95%CI 20.3–36.7%).The response was durable,with 66.8%still in response at 9 ***-three patients(26.4%)were still on *** median PFS and OS were 3.6 months(95%CI=1.9–7.3 months)and 22.8 months(95%CI=17.1 months to not reached),***(7.6%)patients experienced grade 3 or higher *** has promising anti-tumor activities and acceptable toxicities in heavily pretreated metastatic NPC patients,supporting further clinical development as third-line treatment of metastatic NPC.

关键词： metastatic nasopharyngeal supporting

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Mitochondrial dysfunction affects hepatic immune and metabolic remodeling in patients with hepatitis B virus-related acute-onchronic liver failure

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World Journal of Gastroenterology 2024年第8期30卷 881-900页

作者： Yu Zhang Xiao-Ling Tian Jie-Qun Li Dong-Sheng Wu Qiang Li Bin Chen Department of Hepatology Institute of HepatologyThe First Affiliated Hospital of Hunan University of Chinese MedicineChangsha 410021Hunan ProvinceChina Department of Liver Transplant Transplant Medical Research CenterThe Second Xiangya Hospital of Central South UniversityChangsha 410011Hunan ProvinceChina Department of Surgery The First Affiliated Hospital of Hunan University of Chinese MedicineChangsha 410021Hunan ProvinceChina

BACKGROUND Immune dysregulation and metabolic derangement have been recognized as key factors that contribute to the progression of hepatitis B virus(HBV)-related acute-on-chronic liver failure(ACLF).However,the mechanisms underlying immune and metabolic derangement in patients with advanced HBV-ACLF are *** To identify the bioenergetic alterations in the liver of patients with HBV-ACLF causing hepatic immune dysregulation and metabolic *** Liver samples were collected from 16 healthy donors(HDs)and 17 advanced HBV-ACLF patients who were eligible for liver *** mitochondrial ultrastructure,metabolic characteristics,and immune microenvironment of the liver were *** focus was given to organic acid metabolism as well as the function and subpopulations of macrophages in patients with *** Compared with HDs,there was extensive hepatocyte necrosis,immune cell infiltration,and ductular reaction in patients with *** patients,the liver suffered severe hypoxia,as evidenced by increased expression of hypoxia-inducible factor-1α.Swollen mitochondria and cristae were observed in the liver of *** number,length,width,and area of mitochondria were adaptively increased in *** metabolomics analysis revealed that mitochondrial oxidative phosphorylation decreased,while anaerobic glycolysis was enhanced in patients with *** findings suggested that,to a greater extent,hepa-tocytes used the extra-mitochondrial glycolytic pathway as an energy *** with HBV-ACLF had elevated levels of chemokine C-C motif ligand 2 in the liver homogenate,which stimulates peripheral monocyte infiltration into the *** and functional analysis of macrophage subsets revealed that patients with ACLF had a high abundance of CD68^(+)HLA-DR^(+)macrophages and elevated levels of both interleukin-1βand transforming growth factor-β1 in their *** abundance of CD206^(+)CD163^(+)macrophag

关键词： Acute-on-chronic liver failure Hypoxia-inducible factor-1α Mitochondria Metabolic phenotype Immune cells

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Molecular and therapeutic landscape of ferroptosis in skin diseases

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中华医学杂志(英文版) 2024年第15期137卷 2024 Jul 8页

作者： Le Jiayuan Meng Yu Wang Ying Li Daishi Zeng Furong Xiong Yixiao Chen Xiang Deng Guangtong Department of Dermatology Xiangya Hospital Central South University Changsha Hunan China National Engineering Research center of Personalized Diagnostic and Therapeutic Technology Changsha Hunan China Furong Laboratory Changsha Hunan China Hunan Key Laboratory of Skin Cancer and Psoriasis Hunan Engineering Research Center of Skin Health and Disease Xiangya Hospital Central South University Changsha Hunan China National Clinical Research center for Geriatric Disorders Xiangya Hospital Changsha Hunan China Department of Oncology Xiangya Hospital Central South University Changsha Hunan China Department of Dermatology Tongji Hospital Huazhong University of Science and Technology Wuhan Hubei China

Regulated cell death (RCD) is a critical physiological process essential in maintaining skin homeostasis. Among the various forms of RCD, ferroptosis stands out due to its distinct features of iron accumulation, lipid peroxidation, and involvement of various inhibitory antioxidant systems. In recent years, an expanding body of research has solidly linked ferroptosis to the emergence of skin disorders. Therefore, understanding the mechanisms underlying ferroptosis in skin diseases is crucial for advancing therapy and prevention strategies. This review commences with a succinct elucidation of the mechanisms that underpin ferroptosis, embarks on a thorough exploration of ferroptosis’s role across a spectrum of skin conditions, encompassing melanoma, psoriasis, systemic lupus erythematosus (SLE), vitiligo, and dermatological ailments precipitated by ultraviolet (UV) exposure, and scrutinizes the potential therapeutic benefits of pharmacological interventions aimed at modulating ferroptosis for the amelioration of skin diseases.

关键词： Ferroptosis Skin diseases Regulated cell death Homeostasis Melanoma Psoriasis Systemic lupus erythematosus Vitiligo

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Ptip safeguards the epigenetic control of skeletal stem cell quiescence and potency in skeletogenesis

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Science Bulletin 2024年第13期69卷 2099-2113页

作者： Jianfei Liang Jing Wang Bingdong Sui Yibo Tong Jihua Chai Qin Zhou Chenxi Zheng Hao Wang Liang Kong Haojian Zhang Yi Bai State Key Laboratory of Oral&Maxillofacial Reconstruction and Regeneration Key Laboratory of Oral Biomedicine Ministry of EducationHubei Key Laboratory of StomatologySchool&Hospital of StomatologyTaikang Center for Life and Medical SciencesWuhan UniversityWuhan 430079China Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research College of StomatologyXi’an Jiaotong UniversityXi’an 710004China Department of Implant Dentistry College of StomatologyXi’an Jiaotong UniversityXi’an 710004China State Key Laboratory of Oral&Maxillofacial Reconstruction and Regeneration National Clinical Research Center for Oral DiseasesShaanxi Key Laboratory of StomatologyShaanxi International Joint Research Center for Oral DiseasesCenter for Tissue EngineeringSchool of StomatologyThe Fourth Military Medical UniversityXi’an 710032China State Key Laboratory of Genetic Resources and Evolution Kunming Institute of ZoologyChinese Academy of SciencesKunming 650223China State Key Laboratory of Oral&Maxillofacial Reconstruction and Regeneration National Clinical Research Center for Oral DiseasesShaanxi Key Laboratory of StomatologyDepartment of Oral and Maxillofacial SurgerySchool of StomatologyThe Fourth Military Medical UniversityXi’an 710032China Department of Hematology Zhongnan HospitalWuhan UniversityWuhan 430079China Frontier Science center for Immunology and Metabolism Medical Research InstituteWuhan UniversityWuhan 430079China Taikang center for Life and medical Sciences Wuhan UniversityWuhan 430079China

Stem cells remain in a quiescent state for long-term maintenance and preservation of potency;this process requires fine-tuning regulatory *** this study,we identified the epigenetic landscape along the developmental trajectory of skeletal stem cells(SSCs)in skeletogenesis governed by a key regulator,Ptip(also known as Paxip1,Pax interaction with transcription-activation domain protein-1).Our results showed that Ptip is required for maintaining the quiescence and potency of SSCs,and loss of Ptip in type II collagen(Col2)^(+)progenitors causes abnormal activation and differentiation of SSCs,impaired growth plate morphogenesis,and long bone *** also found that Ptip suppressed the glycolysis of SSCs through downregulation of phosphoglycerate kinase 1(Pgk1)by repressing histone H3 lysine 27 acetylation(H3K27ac)at the promoter ***,inhibition of glycolysis improved the function of SSCs despite Ptip *** the best of our knowledge,this is the first study to establish an epigenetic framework based on Ptip,which safeguards skeletal stem cell quiescence and potency through metabolic *** framework is expected to improve SSC-based treatments of bone developmental disorders.

关键词： Skeletal stem cells Bone development Epigenetics Ptip Glycolysis

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Outcomes of surgical correction of Peyronie’s disease with plaque excision and grafting: Comparison of testicular tunica vaginalis graft versus bovine pericardium graft

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Asian Journal of Urology 2024年第3期11卷 497-503页

作者： Ali Eslahi Faisal Ahmed Mohammad Reza Askarpour Hossein-Ali Nikbakht Iman Shamohammadi Payam Ghasemi Hanieh Alimardani Bahareh Ebrahimi Department of Urology School of MedicineShiraz University of Medical SciencesShirazIran Shiraz Geriatric Research center Shiraz University of Medical SciencesShirazIran Urology Research center Al-Thora General HospitalDepartment of UrologySchool of MedicineIbb University of Medical SciencesIbbYemen Social Determinants of Health Research center Health Research InstituteBabol University of Medical SciencesBabolIran

Objective:Peyronie’s disease(PD)is an abnormal wound healing in the penile tunica *** fibrotic plaque excision,different graft materials have been used to repair the defects,but the optimal graft remains *** study aimed to compare the functional outcomes of testicular tunica vaginalis grafts and bovine pericardium grafts in patients with severe ***:A retrospective comparative study was conducted on 33 PD patients undergoing partial plaque excision and grafting from September 2015 to May *** patients were divided into two groups depending on the type of graft *** 15 patients in Group B,testicular tunica vaginalis grafts were used to repair the defect,while for 18 patients in Group A,bovine pericardium grafts were *** of the patient’s age,comorbidities,sexual function,penile curvature,postoperative complications,need for further treatment,change in penile length,and satisfaction were gathered and compared between the *** function was evaluated using the 5-item version of the international Index of Erectile Function(IIEF-5),and a functional less than 20-degree penile curvature after surgery was considered a successful ***:There was no difference in age,comorbidities,degree of curvature,perioperative IIEF-5,operative time,plaque size,or complication *** surgery,a statistically significant improvement in curvature degree(p<0.05)and satisfactory penile appearance(p<0.05)were seen in both groups without any superiority between the two groups(p=0.423 and p=0.840,respectively).With a 30-month follow-up,the IIEF-5 was consistent in both groups,with no statistical significance between the groups(p=0.492).The main change in penile length during the operation was increased and still positive in the last follow-up in both groups without statistical significance(p=0.255 and p=0.101,respectively).Conclusion:Partial plaque excision and corporoplasty with both testicular tunica vaginalis or bovine pericard

关键词： Peyronie's disease Plaqueexcision Testiculartunica vaginalis graft Bovinepericardium graft

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Melatonin decreases GSDME mediated mesothelial cell pyroptosis and prevents peritoneal fibrosis and ultrafiltration failure

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Science China(Life Sciences) 2024年第2期67卷 360-378页

作者： Hongxia Ruan Xuejuan Li Lina Zhou Zihan Zheng Rulin Hua Xu Wang Yuan Wang Yujie Fan Shuwen Guo Lihua Wang Shafiq ur Rahman Ziwei Wang Yuyuan Wei Shuangyan Yu Rongzhi Zhang Qian Cheng Jie Sheng Xue Li Xiaoyan Liu Ruqiang Yuan Xiaoyan Zhang Lihong Chen Guowang Xu Youfei Guan Jing Nie Hongqiang Qin Feng Zheng Advanced Institute for medical Sciences Dalian Medical UniversityDalian 116044China Department of Nephrology Second HospitalDalian Medical UniversityDalian 116023China CAS Key Laboratory of Separation Science for Analytical Chemistry Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023China Chongqing international Institute for Immunology Chongqing 401320China Department of Nephrology Shenzhen HospitalSouthern Medical UniversityShenzhen 518101China Wuhu Hospital and Health Science center East China Normal UniversityShanghai 200241China Peking University First Hospital Peking UniversityBeijing 100034China

Peritoneal fibrosis together with increased capillaries is the primary cause of peritoneal dialysis *** cell loss is an initiating event for peritoneal *** find that the elevated glucose concentrations in peritoneal dialysate drive mesothelial cell pyroptosis in a manner dependent on caspase-3 and Gasdermin E,driving downstream inflammatory responses,including the activation of ***,pyroptosis is associated with elevated vascular endothelial growth factor A and C,two key factors in vascular angiogenesis and lymphatic vessel *** deficiency mice are protected from high glucose induced peritoneal fibrosis and ultrafiltration *** of melatonin abrogates mesothelial cell pyroptosis through a MT1R-mediated action,and successfully reduces peritoneal fibrosis and angiogenesis in an animal model while preserving dialysis ***,melatonin treatment maintains mitochondrial integrity in mesothelial cells,meanwhile activating m TOR signaling through an increase in the glycolysis product dihydroxyacetone *** effects together with quenching free radicals by melatonin help mesothelial cells maintain a relatively stable internal environment in the face of high-glucose ***,Melatonin treatment holds some promise in preserving mesothelium integrity and in decreasing angiogenesis to protect peritoneum function in patients undergoing peritoneal dialysis.

关键词： melatonin mitochondria pyroptosis GSDME peritoneal fibrosis mTOR

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