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Insights into gastrointestinal manifestation of human immunodeficiency virus:A narrative review
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作者 Pratiksha Moliya Anmol Singh +2 位作者 Navdeep Singh Vikash Kumar Aalam Sohal 《World Journal of Virology》 2025年第1期51-62,共12页
Human immunodeficiency virus(HIV)modifies CD4-positive cells,resulting in immunodeficiency and a wide range of gastrointestinal(GI)manifestations.The burden of HIV-related GI illnesses has significantly evolved with t... Human immunodeficiency virus(HIV)modifies CD4-positive cells,resulting in immunodeficiency and a wide range of gastrointestinal(GI)manifestations.The burden of HIV-related GI illnesses has significantly evolved with the widespread use of antiretroviral therapy(ART).While ART has effectively reduced the occurrence of opportunistic infections,it has led to an increase in therapy-related GI illnesses.Common esophageal conditions in HIV patients include gastroesophageal reflux disease,idiopathic esophageal ulcers,herpes simplex virus,cytomegalovirus(CMV),and candidal esophagitis.Kaposi’s sarcoma,a hallmark of acquired immunodeficiency syndrome,may affect the entire GI system.Gastritis and peptic ulcer disease are also frequently seen in patients with HIV.Diarrhea,often linked to both opportunistic infections and ART,requires careful evaluation.Bloody diarrhea,often a sign of colitis caused by bacterial infections such as Shigella or Clostridium difficile,is prevalent.Small bowel lymphoma,although rare,is increasing in prevalence.Anorectal disorders,including proctitis,fissures,and anal squamous cell carcinoma,are particularly relevant in homosexual men,underlining the importance of timely diagnosis.This review comprehensively explores the epidemiology,pathogenesis,and treatment considerations for the various GI disorders associated with HIV,highlighting the importance of accurate diagnosis and effective treatment to improve outcomes for HIV-infected patients. 展开更多
关键词 Human immunodeficiency virus Opportunistic infections Antiretroviral treatment GASTROINTESTINAL
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Endoscopic techniques for the diagnosis of pancreatic cystic lesions
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作者 Sahib Singh Saurabh Chandan +8 位作者 Rakesh Vinayek Jahnvi Dhar Jayanta Samanta Gabriele Capurso Ivo Boskoski Cristiano Spada Jorge D Machicado Stefano Francesco Crinò Antonio Facciorusso 《World Journal of Gastroenterology》 SCIE CAS 2025年第1期1-7,共7页
Pancreatic cysts are mostly incidental findings on computed tomography or magnetic resonance imaging scans,with few patients presenting with abdominal pain or other symptoms.The accurate diagnosis of cysts is importan... Pancreatic cysts are mostly incidental findings on computed tomography or magnetic resonance imaging scans,with few patients presenting with abdominal pain or other symptoms.The accurate diagnosis of cysts is important as management depends on the type(neoplastic or non-neoplastic).Cross-sectional imaging is fast being replaced with endoscopic ultrasound(EUS)and various techniques based on that such as EUS-guided fine needle aspiration,EUS-guided needle confocal laser endomicroscopy,EUS-through-the-needle biopsy,and contrast-enhanced EUS.Clinical studies have reported varying diagnostic and adverse event rates with these modalities.In addition,American,European,and Kyoto guidelines for the diagnosis and management of pancreatic cysts have provided different recommendations.In this editorial,we elaborate on the clinical guidelines,recent studies,and comparison of different endoscopic methods for the diagnosis of pancreatic cysts. 展开更多
关键词 Endoscopic ultrasound Fine needle aspiration Needle confocal laser endomicroscopy Through-the-needle biopsy Contrast-enhanced endoscopic ultrasound
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Gastrointestinal disease in end-stage renal disease
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作者 Ayesha Khan Muhammad Mushtaq +2 位作者 Giri Movva Aalam Sohal Juliana Yang 《World Journal of Nephrology》 2025年第1期29-40,共12页
When kidney function declines to a point where it can no longer maintain life and requires renal replacement therapy(i.e.renal transplant or dialysis),it is called end-stage renal disease(ESRD).Patients with ESRD ofte... When kidney function declines to a point where it can no longer maintain life and requires renal replacement therapy(i.e.renal transplant or dialysis),it is called end-stage renal disease(ESRD).Patients with ESRD often experience a range of gastrointestinal(GI)symptoms,with prevalence rates reported as high as 77%-79%.These symptoms and pathologies arise from various factors,including electrolyte imbalance,fluid imbalance,toxin buildup,uremia,medications,dietary and lifestyle restrictions,and the effects of dialysis.GI diseases in patients with renal failure can be further categorized into upper GI,small bowel,and lower GI issues.Common conditions include gastroesophageal reflux disease,nausea and vomiting,dysmotility within the esophagus and stomach,upper GI bleeding,peptic ulcer bleeding,angioectasia,irritable bowel syndrome,mesen-teric ischemia,angiodysplasia,diverticular disease,constipation,pancreatitis,and diseases associated with peritoneal dialysis peritonitis and peritoneal stenosis.This review assesses the existing literature on the different GI diseases among individuals with ESRD,shedding light on their pathophysiology and prevalence. 展开更多
关键词 End-stage renal disease Gastroesophageal reflux disease NAUSEA VOMITING Esophageal dysmotility Gastric dysmotility Gastrointestinal disease PERITONITIS Peri-toneal stenosis Chronic kidney disease
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Cutaneous Manifestations of Bone Marrow Edema Syndrome: A Dermatologic-Orthopedic Correlation
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作者 Daniela Rizzo Janae Rasmussen +5 位作者 Milana Stein Ceilia Severini Yanick Tade David Matatov Devri Langelm Kelly Frasier 《Modern Research in Inflammation》 2025年第1期1-19,共19页
Bone marrow edema syndrome (BMES), is a rare and self-limiting condition characterized by localized bone pain and transient marrow edema visible on MRI. BMES has been increasingly associated with specific cutaneous ma... Bone marrow edema syndrome (BMES), is a rare and self-limiting condition characterized by localized bone pain and transient marrow edema visible on MRI. BMES has been increasingly associated with specific cutaneous manifestations that may hold diagnostic and prognostic significance. Patients with BMES have reported localized erythema, dermal thickening, and induration overlying the affected joints, which are hypothesized to reflect microvascular compromise and inflammatory processes within the bone and adjacent soft tissues. Dermatologic signs are likely linked to regional hyperemia, venous stasis, and cytokine-mediated inflammation, paralleling the pathophysiological mechanisms underlying intraosseous edema. Elevated intraosseous pressure in BMES may disrupt local perfusion, resulting in ischemia-reperfusion injury and subsequent vascular leakage, which manifests in visible cutaneous changes. Pro-inflammatory mediators, such as interleukin-1β and vascular endothelial growth factor (VEGF), central to BMES pathogenesis, may exacerbate endothelial activation, and dermal involvement. Histopathologic studies of affected skin have revealed perivascular lymphocytic infiltration and increased dermal vascularity, further supporting the theory of a shared ischemic and inflammatory pathway between bone and skin. Although MRI remains the gold standard for BMES diagnosis, recognition of these cutaneous manifestations could expedite orthopedic referral and intervention, especially in cases where imaging is delayed or symptoms are ambiguous. Current treatment options, including bisphosphonates, prostacyclin analogs, and offloading of weight bearing, may benefit from integration with dermatologic strategies to alleviate localized cutaneous symptoms and improve patient comfort. Evaluating the molecular and vascular links between BMES and its cutaneous manifestations provides an opportunity to refine diagnostic protocols and therapeutic approaches, offering a comprehensive understanding of the systemic interplay between dermal and skeletal pathophysiology, and optimizing clinical outcomes for patients affected by BMES. 展开更多
关键词 Bone Marrow Edema Syndrome Cutaneous Manifestations Microvascular Compromise MRI Diagnosis Pro-Inflammatory Mediators Dermatologic-Orthopedic Correlation
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GLP-1, GIP/GLP-1, and GCGR/GLP-1 receptor agonists: Novel therapeutic agents for metabolic dysfunction-associated steatohepatitis
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作者 Anmol Singh Aalam Sohal Akash Batta 《World Journal of Gastroenterology》 SCIE CAS 2024年第48期5205-5211,共7页
The global prevalence of metabolic dysfunction-associated steatotic liver disease(MASLD)is estimated at 32.4%,reflecting its growing clinical significance.MASLD,which includes MASLD and metabolic dysfunction-associate... The global prevalence of metabolic dysfunction-associated steatotic liver disease(MASLD)is estimated at 32.4%,reflecting its growing clinical significance.MASLD,which includes MASLD and metabolic dysfunction-associated steato-hepatitis(MASH)has been linked to increased metabolic,cardiovascular,and malignant morbidity.Progression into fibrotic stages of MASLD is also strongly associated with liver-related mortality.The past few years have seen a heightened focus on creating innovative therapeutic strategies for MASH management.GLP-1 receptor agonists(RA)have also emerged as a potential treatment option.Studies on GLP-1 agonists,such as liraglutide and semaglutide,have demonstrated efficacy in MASH management,albeit with limited histological improvement of fibrosis.However,recent investigations into GLP-1/GIP RA(tirzepatide)and Glucagon/GLP-1 RA(survodutide)have shown even more encouraging results,with higher rates of MASH resolution and fibrosis improvement.The tolerability of these medications due to their gastrointestinal side effects remains a major concern.Future research should focus on optimizing drug regimens,identifying patients most likely to benefit,and balancing efficacy with tolerability.The evolving landscape of MASH therapeutics suggests a bright future,with the potential for combination therapies to further enhance patient outcomes. 展开更多
关键词 Glucagon-like peptide-1 receptor agonists Metabolic dysfunction-associated steatotic liver disease Metabolic dysfunction-associated steatohepatitis Liver fibrosis Semaglutide Tirzepatide Survodutide
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Recent developments in non-invasive methods for assessing metabolic dysfunction-associated fatty liver disease
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作者 Anmol Singh Aalam Sohal Akash Batta 《World Journal of Gastroenterology》 SCIE CAS 2024年第39期4324-4328,共5页
The prevalence of metabolic dysfunction-associated fatty liver disease(MAFLD)is increasing,affecting over one-third of the global population and contributing to significant morbidity and mortality.Diagnosing MAFLD,esp... The prevalence of metabolic dysfunction-associated fatty liver disease(MAFLD)is increasing,affecting over one-third of the global population and contributing to significant morbidity and mortality.Diagnosing MAFLD,especially with advan-ced fibrosis,remains challenging due to the limitations of liver biopsy,the current gold standard.Non-invasive tests are crucial for early detection and management.Among these,the fibrosis-4 index(Fib-4)is widely recommended as a first-line test for screening for liver fibrosis.Advanced imaging techniques,including ultrasound-based elastography and magnetic resonance elastography,offer high accuracy but are limited by cost and availability.Combining biomarkers,such as in the enhanced liver fibrosis score and FibroScan-AST score,enhances diagnostic precision and is recommended to further stratify patients who are considered to be intermediate or high risk from the Fib-4 score.We believe that the future lies in the combined use of biomarkers to improve diagnostic accuracy. 展开更多
关键词 Non-invasive tests Metabolic-associated fatty liver disease Fibrosis-4 index Magnetic resonance elastography Enhanced liver fibrosis
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Impact of frailty on endoscopic retrograde cholangiopancreatography outcomes in nonagenarians:A United States national experience
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作者 Sanket Dhirubhai Basida Dushyant Singh Dahiya +11 位作者 Muhammad Nadeem Yousaf Brinda Basida Bhanu Siva Mohan Pinnam Manesh Kumar Gangwani Hassam Ali Sahib Singh Yash R Shah Daksh Ahluwalia Mihir Prakash Shah Saurabh Chandan Neil R Sharma Shyam Thakkar 《World Journal of Gastrointestinal Endoscopy》 2024年第3期148-156,共9页
BACKGROUND Endoscopic retrograde cholangiopancreatography(ERCP)is an essential therapeutic tool for biliary and pancreatic diseases.Frail and elderly patients,especially those aged≥90 years are generally considered a... BACKGROUND Endoscopic retrograde cholangiopancreatography(ERCP)is an essential therapeutic tool for biliary and pancreatic diseases.Frail and elderly patients,especially those aged≥90 years are generally considered a higher-risk population for ERCP-related complications.AIM To investigate outcomes of ERCP in the Non-agenarian population(≥90 years)concerning Frailty.METHODS This is a cohort study using the 2018-2020 National Readmission Database.Patients aged≥90 were identified who underwent ERCP,using the international classification of diseases-10 code with clinical modification.Johns Hopkins’s adjusted clinical groups frailty indicator was used to classify patients as frail and non-frail.The primary outcome was mortality,and the secondary outcomes were morbidity and the 30 d readmission rate related to ERCP.We used univariate and multivariate regression models for analysis.RESULTS A total of 9448 patients were admitted for any indications of ERCP.Frail and non-frail patients were 3445(36.46%)and 6003(63.53%)respectively.Indications for ERCP were Choledocholithiasis(74.84%),Biliary pancreatitis(9.19%),Pancreatico-biliary cancer(7.6%),Biliary stricture(4.84%),and Cholangitis(1.51%).Mortality rates were higher in frail group[adjusted odds ratio(aOR)=1.68,P=0.02].The Intra-procedural complications were insigni-ficant between the two groups which included bleeding(aOR=0.72,P=0.67),accidental punctures/lacerations(aOR=0.77,P=0.5),and mechanical ventilation rates(aOR=1.19,P=0.6).Post-ERCP complication rate was similar for bleeding(aOR=0.72,P=0.41)and post-ERCP pancreatitis(aOR=1.4,P=0.44).Frail patients had a longer length of stay(6.7 d vs 5.5 d)and higher mean total charges of hospitalization($78807 vs$71392)compared to controls(P<0.001).The 30 d all-cause readmission rates between frail and non-frail patients were similar(P=0.96).CONCLUSION There was a significantly higher mortality risk and healthcare burden amongst nonagenarian frail patients undergoing ERCP compared to non-frail.Larger studies are warranted to investigate and mitigate modifiable risk factors. 展开更多
关键词 Endoscopic retrograde cholangiopancreatography NONAGENARIANS FRAILTY MORTALITY Healthcare burden
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Remimazolam for sedation in gastrointestinal endoscopy:A comprehensive review
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作者 Dushyant Singh Dahiya Ganesh Kumar +13 位作者 Syeda Parsa Manesh Kumar Gangwani Hassam Ali Amir Humza Sohail Saqr Alsakarneh Umar Hayat Sheza Malik Yash R Shah Bhanu Siva Mohan Pinnam Sahib Singh Islam Mohamed Adishwar Rao Saurabh Chandan Mohammad Al-Haddad 《World Journal of Gastrointestinal Endoscopy》 2024年第7期385-395,共11页
Worldwide,a majority of routine endoscopic procedures are performed under some form of sedation to maximize patient comfort.Propofol,benzodiazepines and opioids continue to be widely used.However,in recent years,Remim... Worldwide,a majority of routine endoscopic procedures are performed under some form of sedation to maximize patient comfort.Propofol,benzodiazepines and opioids continue to be widely used.However,in recent years,Remimazolam is gaining immense popularity for procedural sedation in gastrointestinal(GI)endoscopy.It is an ultra-short-acting benzodiazepine sedative which was approved by the Food and Drug Administration in July 2020 for use in procedural sedation.Remimazolam has shown a favorable pharmacokinetic and pharmacodynamic profile in terms of its non-specific metabolism by tissue esterase,volume of distribution,total body clearance,and negligible drug-drug interactions.It also has satisfactory efficacy and has achieved high rates of successful sedation in GI endoscopy.Furthermore,studies have demonstrated that the efficacy of Remimazolam is non-inferior to Propofol,which is currently a gold standard for procedural sedation in most parts of the world.However,the use of Propofol is associated with hemodynamic instability and respiratory depression.In contrast,Remimazolam has lower incidence of these adverse effects intra-procedurally and hence,may provide a safer alternative to Propofol in procedural sedation.In this comprehensive narrative review,highlight the pharmacologic characteristics,efficacy,and safety of Remimazolam for procedural sedation.We also discuss the potential of Remimazolam as a suitable alternative and how it can shape the future of procedural sedation in gastroenterology. 展开更多
关键词 Remimazolam ENDOSCOPY SEDATION OUTCOMES EFFICACY Safety PHARMACOKINETICS
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杜仲、千年健对去卵巢大鼠骨质疏松症的治疗作用及其机理探讨 被引量:18
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作者 张颖 Gary Guishan Xiao +9 位作者 荣培晶 刘梅洁 汪文莱 王少君 于智敏 刘红 潘静华 于峥 赵宏艳 鞠大宏 《中国中医基础医学杂志》 CAS CSCD 北大核心 2011年第9期960-962,共3页
目的:探讨具有温补肾阳作用的单味中药杜仲、千年健对去卵巢所致大鼠骨质疏松症的治疗作用及其机理。方法:将72只雌性Wistar大鼠随机分为空白对照组、假手术组、模型组、阳性对照组、杜仲组以及千年健组6组。给药3个月后,采用骨组织形... 目的:探讨具有温补肾阳作用的单味中药杜仲、千年健对去卵巢所致大鼠骨质疏松症的治疗作用及其机理。方法:将72只雌性Wistar大鼠随机分为空白对照组、假手术组、模型组、阳性对照组、杜仲组以及千年健组6组。给药3个月后,采用骨组织形态计量学方法对不脱钙骨切片进行形态计量,免疫组化和原位杂交法检测大鼠胫骨OB和MSC OPG、RANKL蛋白及其mRNA表达。结果:与模型组相比,杜仲组、千年健组胫骨TBV%显著增高,TRS%明显降低,千年健组TFS%、MAR、OSW明显降低,杜仲组无显著性变化;千年健组OB和MSC OPG蛋白及其mRNA的表达显著升高,RANKL蛋白及其mRNA表达明显降低;杜仲组OB和MSC RANKL蛋白及其mRNA表达明显降低。结论:千年健不仅可以增加OB和MSC OPG蛋白及其mRNA表达,还能抑制RANKL蛋白及其mRNA的表达,而杜仲是通过抑制OB和MSC RANKL蛋白及其mRNA表达达到治疗骨质疏松症作用的。 展开更多
关键词 杜仲 千年健 骨质疏松症 OPG RANKL
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细胞生命进程中microRNA调控的意义 被引量:9
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作者 张众 Xiao Gary Guishan +2 位作者 石宇 李连宏 谢丰培 《临床与实验病理学杂志》 CAS CSCD 北大核心 2012年第5期477-481,共5页
细胞生命进程经历从生到死多个阶段,涉及基因表达程序在整体机制控制下的一系列协调性改变.遗传信息网络在整体机制中控制基因组表达程序,地位至关重要,是细胞分裂时发生的可遗传性而不涉及DNA链自身序列改变的稳定性分子变化,包括micro... 细胞生命进程经历从生到死多个阶段,涉及基因表达程序在整体机制控制下的一系列协调性改变.遗传信息网络在整体机制中控制基因组表达程序,地位至关重要,是细胞分裂时发生的可遗传性而不涉及DNA链自身序列改变的稳定性分子变化,包括microRNA及其非蛋白编码RNA、DNA甲基化(常发生于CpG岛)及组蛋白尾修饰(影响染色质结构).microRNA是一种由22个左右核苷酸组成的非蛋白编码微小RNA.Bartel等[1,2]于1993年首次从线虫中发现,至2009年已经识别的人类microRNA达900多种.据生物信息学评估,人类基因组有30%~60%受microRNA调控. 展开更多
关键词 MICRORNA 细胞周期 干细胞自我更新 细胞分化 EMT 细胞凋亡 肿瘤转化
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巴戟天对卵巢切除所致大鼠骨质疏松症的治疗作用及机理探讨 被引量:11
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作者 王莹 王少君 +13 位作者 潘静华 刘红 李艳 付小卫 汪文来 周晟芳 李亚楠 赵红霞 于峥 赵宏艳 张治国 刘梅洁 Gary Guishan Xiao 鞠大宏 《中国中医基础医学杂志》 CAS CSCD 北大核心 2012年第10期1080-1082,共3页
目的:探讨巴戟天对卵巢切除所致大鼠骨质疏松症的治疗作用及其机理。方法:将60只雌性Wistar大鼠随机分为5组,即空白对照组、假手术组、模型组、阳性对照组和巴戟天组,每组12只。摘除大鼠双侧卵巢1个月后,灌胃给予巴戟天水煎剂,给药3个... 目的:探讨巴戟天对卵巢切除所致大鼠骨质疏松症的治疗作用及其机理。方法:将60只雌性Wistar大鼠随机分为5组,即空白对照组、假手术组、模型组、阳性对照组和巴戟天组,每组12只。摘除大鼠双侧卵巢1个月后,灌胃给予巴戟天水煎剂,给药3个月。采用骨组织形态计量学的方法对大鼠胫骨不脱钙骨切片进行形态计量;采用免疫组化方法检测OB和MSC OPG、RANKL的蛋白表达。结果:与模型组比较,巴戟天组大鼠胫骨TBV%显著增高,TRS%以及TFS%、MAR明显降低,同时OB、MSCRANKL蛋白表达皆显著降低。结论:巴戟天对卵巢切除所致的大鼠骨质疏松症具有一定的治疗作用,能抑制OB和MSC RANKL的蛋白表达,是其能够治疗骨质疏松症的机理之一。 展开更多
关键词 巴戟天 骨质疏松症 OPG RANKL
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MicroRNA与乳腺癌侵袭转移的关系 被引量:5
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作者 张众 李连宏 +2 位作者 Xiao Gray Guishan 石宇 谢丰培 《临床与实验病理学杂志》 CAS CSCD 北大核心 2012年第7期713-716,共4页
文献报道显示乳腺原位癌与侵袭癌相关microRNA种类既有相同者,也有相异者。乳腺癌相关microRNA对癌变和(或)转移的调控能力有的兼具二者,有的仅具其一。microRNA对乳腺癌侵袭、转移的作用包括调控癌细胞迁徙、侵袭与生存能力,改变微环... 文献报道显示乳腺原位癌与侵袭癌相关microRNA种类既有相同者,也有相异者。乳腺癌相关microRNA对癌变和(或)转移的调控能力有的兼具二者,有的仅具其一。microRNA对乳腺癌侵袭、转移的作用包括调控癌细胞迁徙、侵袭与生存能力,改变微环境与促进血管生成及启动瘤细胞上皮——间质转变。乳腺癌干细胞在microRNA调控下不仅促进乳腺癌发生,也与癌侵袭转移的发生、发展密切相关。 展开更多
关键词 癌侵袭转移 乳腺原位癌 MICRORNA MICRORNA 乳腺癌干细胞 细胞迁徙 血管生成 调控
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耳蜗毛细胞与血管纹的相互依存关系的研究 被引量:10
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作者 李轶 刘会占 +1 位作者 龚树生 何志洲 《中华耳科学杂志》 CSCD 北大核心 2014年第3期475-480,共6页
目的通过对Atoh1条件基因敲除小鼠及Mitf基因突变小鼠两个动物模型的研究,来验证毛细胞及血管纹两者的存活是否相互依赖,以及在内耳中是否存在钾离子从血管纹—毛细胞—支持细胞—血管纹循环通路。方法分别对一月龄两种模型小鼠进行ABR... 目的通过对Atoh1条件基因敲除小鼠及Mitf基因突变小鼠两个动物模型的研究,来验证毛细胞及血管纹两者的存活是否相互依赖,以及在内耳中是否存在钾离子从血管纹—毛细胞—支持细胞—血管纹循环通路。方法分别对一月龄两种模型小鼠进行ABR、CM、CAP和EP的测量。并用免疫组化和共聚焦显微镜以及耳蜗铺片、切片对两种模型小鼠的耳蜗Corti’s器和血管纹进行形态学观察。结果内淋巴的缺损可造成外毛细胞的凋亡,但内毛细胞依然能够存活。20 mV的内淋巴电位是外毛细胞存活所必须的。血管纹的生存及功能并不需要功能正常的Corti’s器的支持,同时内淋巴电位的产生及维持并不依赖毛细胞及支持细胞的钾离子循环的支持。结论成熟毛细胞的存活依赖于正常的血管纹功能和内淋巴的离子环境。然而,血管纹的存活及功能却并不依赖Corti’s器的功能。 展开更多
关键词 Corti’s器 血管纹 内淋巴电位 MITF Atoh1
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针刺治疗原发性骨质疏松症的研究概况与述评 被引量:6
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作者 刘儒鹏 荣培晶 Gary Guishan Xiao 《中国中医基础医学杂志》 CAS CSCD 北大核心 2011年第12期1400-1401,共2页
原发性骨质疏松症(POP)是多发病。据国际骨质疏松基金会的统计数字显示,目前全世界约有2亿人罹患骨质疏松症,发病率位于世界各种常见病的第七位。《骨质疏松症中国白皮书》,据调查估算,2006年中国50岁以上人群中,约有6944万人罹患骨... 原发性骨质疏松症(POP)是多发病。据国际骨质疏松基金会的统计数字显示,目前全世界约有2亿人罹患骨质疏松症,发病率位于世界各种常见病的第七位。《骨质疏松症中国白皮书》,据调查估算,2006年中国50岁以上人群中,约有6944万人罹患骨质疏松症;中国卫生部2002年至2005年关于骨质疏松症的调查结果显示患病率为8.8%,名列中国居民慢性病患病率的第三位。 展开更多
关键词 针刺 骨质疏松症 骨痿 骨痹
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乳腺干细胞研究及其再生医学 被引量:2
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作者 李连宏 Xiao Gary Guishan +1 位作者 张众 谢丰培 《临床与实验病理学杂志》 CAS CSCD 北大核心 2013年第9期933-937,共5页
关于乳腺干细胞及乳腺癌干细胞的研究,本实验室前期做了较多探索性工作,包括乳腺癌干细胞的分选、特异性乳腺癌干细胞标志物的筛选、癌基因和肿瘤抑制基因、生长因子、细胞周期、增殖和凋亡、信号转导通路、
关键词 乳腺干细胞 再生医学 壁龛
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乳腺癌干性表型癌细胞的临床意义 被引量:3
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作者 张众 谢丰培 Gary Guishan Xiao 《临床与实验病理学杂志》 CAS CSCD 北大核心 2014年第1期1-5,共5页
乳腺癌是女性最常见的恶性肿瘤,病死率居全球首位。近20年,由于早期发现和辅助治疗的改进,乳腺癌的治疗疗效已明显提升,但很多患者仍面临复发的恐惧和死亡的威胁。现阶段,乳腺癌总体复发率约40%,其中60%~70%的患者发生远处转... 乳腺癌是女性最常见的恶性肿瘤,病死率居全球首位。近20年,由于早期发现和辅助治疗的改进,乳腺癌的治疗疗效已明显提升,但很多患者仍面临复发的恐惧和死亡的威胁。现阶段,乳腺癌总体复发率约40%,其中60%~70%的患者发生远处转移。应用常规化疗药物联合治疗,HER-2阳性早期转移性乳腺癌对trastuzumab的反应率为50%-84%,但疗程开始1年内药物即对患者失效。 展开更多
关键词 乳腺肿瘤 干性表型 靶基因
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EGFR基因rs1024750多态性显著影响钙加维生素D干预绝经后白人妇女的血钙水平(英文) 被引量:1
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作者 王萍 徐潇静 +3 位作者 卜锋啸 周宇 叶安 周伯庭 《中国临床药理学与治疗学》 CAS CSCD 2014年第7期772-779,共8页
目的:考察EGFR基因多态性对钙加维生素D连续4年干预绝经后白人妇女血钙等人体成分的影响。方法:本研究共招募美国中西部农村地区201名绝经后白人妇女,每日三次服用钙剂(乳酸钙1 400mg/d或碳酸钙1 500mg/d)加维生素D(1 100IU/d),170名受... 目的:考察EGFR基因多态性对钙加维生素D连续4年干预绝经后白人妇女血钙等人体成分的影响。方法:本研究共招募美国中西部农村地区201名绝经后白人妇女,每日三次服用钙剂(乳酸钙1 400mg/d或碳酸钙1 500mg/d)加维生素D(1 100IU/d),170名受试者完成了4年的临床试验。用Haploview软件4.2版挑选EGFR基因35个目标SNP并基因分型。每年对受试者的人体成分进行测试,分析目标SNP与人体成分的相关性。结果:在人体成分中,仅有血钙基础水平与EGFR基因rs1024750位点基因多态性显著相关(P<0.05),血钙水平AA型>GA型>GG型。进行钙加维生素D干预后,血钙每年的变化值与该位点多态性显著相关,血钙变化值GG型>GA型>AA型。结论:EGFR基因rs1024750位点多态性与钙加维生素D干预绝经后白人妇女体内的血钙水平变化值显著相关。 展开更多
关键词 EGFR 基因 单核苷酸多态性 维生素D
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离子通道和机械负荷对耳蜗外毛细胞电致运动的影响 被引量:1
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作者 李轶 贾淑萍 +1 位作者 龚树生 何志洲 《首都医科大学学报》 CAS 2014年第4期477-482,共6页
目的研究豚鼠耳蜗外毛细胞的细胞膜电导和机械负荷对细胞电致运动的动力学特性的影响。方法使用分离自豚鼠耳蜗第四回的外毛细胞,采用全细胞电压钳和微室电极技术。使用以光电二极管为基础的测量系统来测量电致运动。结果外毛细胞的膜... 目的研究豚鼠耳蜗外毛细胞的细胞膜电导和机械负荷对细胞电致运动的动力学特性的影响。方法使用分离自豚鼠耳蜗第四回的外毛细胞,采用全细胞电压钳和微室电极技术。使用以光电二极管为基础的测量系统来测量电致运动。结果外毛细胞的膜电导可以同时影响电致运动的灵敏度和运动的非线性,而机械负载可以显著影响电致运动的幅度、不对称和频率响应。结论外毛细胞的膜电导和机械负荷可以影响外毛细胞的电致运动,从而影响耳蜗放大器功能。 展开更多
关键词 外毛细胞 电致运动 机械负荷 频率响应 豚鼠
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顺铂对耳蜗血管纹毒性作用的研究 被引量:3
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作者 李轶 刘会占 何志洲 《中华耳科学杂志》 CSCD 北大核心 2019年第1期82-87,共6页
目的探讨顺铂对内耳血管纹的毒性机制。方法使用在体小鼠模型,用记录内淋巴电位的方法,研究使用顺铂是否可以迅速影响内淋巴电位的幅度。用离体培养的小鼠的血管纹中间细胞,记录中间细胞的膜电位,观察顺铂是否能够影响中间细胞胞膜上离... 目的探讨顺铂对内耳血管纹的毒性机制。方法使用在体小鼠模型,用记录内淋巴电位的方法,研究使用顺铂是否可以迅速影响内淋巴电位的幅度。用离体培养的小鼠的血管纹中间细胞,记录中间细胞的膜电位,观察顺铂是否能够影响中间细胞胞膜上离子泵的转运能力和离子通道的通透性。结果在实验动物中注射顺铂后并不能改变其内淋巴电位的幅度。在培养的中间细胞上观察到,灌流顺铂对细胞静息膜电位没有影响。结论使用顺铂一个疗程后出现的内淋巴电位降低,并不是通过对血管纹上离子通道或离子泵的影响引起的,顺铂对血管纹的功能不能造成急性损伤。 展开更多
关键词 顺铂 血管纹 内淋巴电位
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microRNA与乳腺癌变
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作者 张众 Xiao Gray Guishan +2 位作者 石宇 李连宏 谢丰培 《临床与实验病理学杂志》 CAS CSCD 北大核心 2013年第6期661-664,共4页
乳腺癌变相关microRNA包括肿瘤抑制性与致瘤性两类,前者在癌细胞中表达低于正常细胞,后者对促进细胞增生及抑制细胞分化和(或)凋亡的基因表达加以抑制。mi-croRNA通过调控细胞周期进展、ER、HER、细胞存亡调控分子及其它调控途径(如Sp、... 乳腺癌变相关microRNA包括肿瘤抑制性与致瘤性两类,前者在癌细胞中表达低于正常细胞,后者对促进细胞增生及抑制细胞分化和(或)凋亡的基因表达加以抑制。mi-croRNA通过调控细胞周期进展、ER、HER、细胞存亡调控分子及其它调控途径(如Sp、FOXO1等),发挥抑瘤与致瘤作用。乳腺癌变相关microRNA及其靶基因组成相互作用的联网,在乳腺癌形成过程中发挥重要的整体作用。乳腺癌的发生与演进是在表达异常的microRNA作用下乳腺癌干细胞发生与扩增的结果。 展开更多
关键词 乳腺肿瘤 癌变 MICRORNA
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