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Non-alcoholic fatty liver disease in type 2 diabetes:Emerging evidence of benefit of peroxisome proliferator-activated receptors agonists and incretin-based therapies
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作者 Subhodip Pramanik Partha Pal Sayantan Ray 《World Journal of Methodology》 2024年第2期38-50,共13页
Nonalcoholic fatty liver disease(NAFLD)is a global epidemic,affecting more than half of the people living with type 2 diabetes(T2D).The relationship between NAFLD and T2D is bidirectional and the presence of one perpe... Nonalcoholic fatty liver disease(NAFLD)is a global epidemic,affecting more than half of the people living with type 2 diabetes(T2D).The relationship between NAFLD and T2D is bidirectional and the presence of one perpetuates the other,which significantly increases the hepatic as well as extrahepatic complications.Until recently,there was no approved pharmacological treatment for NAFLD/nonalcoholic steatohepatitits(NASH).However,there is evidence that drugs used for diabetes may have beneficial effects on NAFLD.Insulin sensitizers acting through peroxisome proliferator-activated receptor(PPAR)modulation act on multiple levels of NAFLD pathogenesis.Pioglitazone(PPARγ agonist)and saroglitazar(PPARα/γagonist)are particularly beneficial and recommended by several authoritative bodies for treating NAFLD in T2D,although data on biopsyproven NASH are lacking with the latter.Initial data on elafibanor(PPARα/δ agonist)and Lanifibranor(pan PPAR agonist)are promising.On the other hand,incretin therapies based on glucagon-like peptide-1(GLP-1)receptor agonists(GLP-1RA)and dual-and triple-hormone receptor co-agonists reported impressive weight loss and may have anti-inflammatory and antifibrotic properties.GLP-1 RAs have shown beneficial effects on NAFLD/NASH and more studies on potential direct effects on liver function by dual-and triple-agonists are required.Furthermore,the long-term safety of these therapies in NAFLD needs to be established.Collaborative efforts among healthcare providers such as primary care doctors,hepatologists,and endocrinologists are warranted for selecting patients for the best possible management of NAFLD in T2D. 展开更多
关键词 Non-alcoholic fatty liver disease Type 2 diabetes EVIDENCE ppar agonists Incretin-based therapies
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Practical guide:Glucagon-like peptide-1 and dual glucosedependent insulinotropic polypeptide and glucagon-like peptide-1 receptor agonists in diabetes mellitus
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作者 Saleh Fahad Alqifari Omar Alkomi +13 位作者 Abdullah Esmail Khadijeh Alkhawami Shahd Yousri Mohamad Ayham Muqresh Nawwarah Alharbi Abdullah A Khojah Ahmed Aljabri Abdulrahman Allahham Kousalya Prabahar Hanan Alshareef Mohammed Aldhaeefi Tariq Alrasheed Ali Alrabiah Laila A AlBishi 《World Journal of Diabetes》 SCIE 2024年第3期331-347,共17页
Practical guide:Glucagon-like peptide-1 and dual glucosedependent insulinotropic polypeptide and glucagon-like peptide-1 receptor agonists in diabetes mellitus common second-line choice after metformin for treating T2... Practical guide:Glucagon-like peptide-1 and dual glucosedependent insulinotropic polypeptide and glucagon-like peptide-1 receptor agonists in diabetes mellitus common second-line choice after metformin for treating T2DM.Various considerations can make selecting and switching between different GLP-1 RAs challenging.Our study aims to provide a comprehensive guide for the usage of GLP-1 RAs and dual GIP and GLP-1 RAs for the management of T2DM. 展开更多
关键词 Glucagon-like peptide-1 receptor agonist Diabetes mellitus Metabolic syndrome Dual glucose-dependent insulinotropic polypeptide and glucagon-like peptide-1 receptor agonist Clinical practice ENDOCRINOLOGY
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The Association between GLP-1 Receptor-Based Agonists and the Incidence of Asthma in Patients with Type 2 Diabetes and/or Obesity:A Meta-Analysis
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作者 Mengqing Zhang Chu Lin +7 位作者 Xiaoling Cai Ruoyang Jiao Shuzhen Bai Zonglin Li Suiyuan Hu Fang Lyu Wenjia Yang Linong Ji 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2024年第6期607-616,共10页
Objective Recent studies have indicated potential anti-inflammatory effects of glucagon-like peptide-1 receptor agonists(GLP-1RAs)on asthma,which is often comorbid with type 2 diabetes mellitus(T2DM)and obesity.Theref... Objective Recent studies have indicated potential anti-inflammatory effects of glucagon-like peptide-1 receptor agonists(GLP-1RAs)on asthma,which is often comorbid with type 2 diabetes mellitus(T2DM)and obesity.Therefore,we conducted a meta-analysis to assess the association between the administration of glucagon-like peptide-1(GLP-1)receptor-based agonists and the incidence of asthma in patients with T2DM and/or obesity.Methods PubMed,Web of Science,Embase,the Cochrane Central Register of Controlled Trials,and Clinicaltrial.gov were systematically searched from inception to July 2023.Randomized controlled trials(RCTs)of GLP-1 receptor-based agonists(GLP-1RA,GLP-1 based dual and triple receptor agonist)with reports of asthma events were included.Outcomes were computed as risk ratios(RR)using a fixedeffects model.Results Overall,39 RCTs with a total of 85,755 participants were included.Compared to non-GLP-1 receptor-based agonist users,a trend of reduced risk of asthma was observed in patients with T2DM or obesity using GLP-1 receptor-based agonist treatments,although the difference was not statistically significant[RR=0.91,95%confidence interval(CI):0.68 to 1.24].Further Subgroup analyses indicated that the use of light-molecular-weight GLP-1RAs might be associated with a reduced the risk of asthma when compared with non-users(RR=0.65,95%CI:0.43 to 0.99,P=0.043).We also performed sensitivity analyses for participant characteristics,study design,drug structure,duration of action,and drug subtypes.However,no significant associations were observed.Conclusion Compared with non-users,a modest reduction in the incidence of asthma was observed in patients with T2DM or obesity using GLP-1 receptor-based agonist treatments.Further investigations are warranted to assess the association between GLP-1 receptor-based agonists and the risk of asthma. 展开更多
关键词 Glucagon-like peptide-1 receptor agonists Twincretins ASTHMA Type 2 diabetes mellitus OBESITY
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A Retrospective Analysis of Glucagon-Like Peptide 1 Receptor Agonists in Treating Type 2 Diabetes Mellitus Complicated by Nonalcoholic Fatty Liver Disease
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作者 Jiaqian Chen Hongyan Wu 《Journal of Biosciences and Medicines》 2024年第3期16-24,共9页
Background: The objective of this study was to compare and analyze the variations in clinical indices before and after treatment of type 2 mellitus (T2DM) combined with nonalcoholic fatty liver disease (NAFLD) that we... Background: The objective of this study was to compare and analyze the variations in clinical indices before and after treatment of type 2 mellitus (T2DM) combined with nonalcoholic fatty liver disease (NAFLD) that were treated with glucagon-like peptide 1 receptor agonists (GLP-1RAs). Methods: The electronic medical record system was utilized to search for a total of 16 patients with type 2 diabetes complicated by NAFLD who were hospitalized at the First Affiliated Hospital of Yangtze University from October 2022 to April 2023 and treated with GLP-1RA for the first time. The clinical indices were compared before and after 12 weeks of treatment with GLP-1RA. Results: The liver-spleen CT ratio (L/S), alanine aminotransferase (ALT), gamma-glutamyltransferase (GGT), total cholesterol (TC), triglyceride (TG), and low-density lipoprotein cholesterol (LDL-C) in all patients treated with GLP-1RA after 12 weeks were significantly different (P 0.05). The patients were categorized into two groups based on the types of GLP-1RAs. The changes in L/S, TC, TG, and LDL-C in the long-acting group after treatment were statistically significant (P Conclusions: GLP-1RAs can improve liver function, regulate lipid metabolism, and reduce the severity of fatty liver in patients with T2DM complicated by NAFLD, which demonstrates the importance of clinical applications. 展开更多
关键词 Glucagon-Like Peptide 1 Receptor agonists Nonalcoholic Fatty Liver Disease Type 2 Diabetes Mellitus
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Impact of glucagon-like peptide receptor agonists on endoscopy and its preoperative management: Guidelines, challenges, and future directions
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作者 Sahib Singh Vishnu Charan Suresh Kumar Ganesh Aswath 《World Journal of Gastrointestinal Endoscopy》 2024年第6期292-296,共5页
Glucagon-like peptide receptor agonists(GLP-1RA)are used to treat type 2 diabetes mellitus and,more recently,have garnered attention for their effect-iveness in promoting weight loss.They have been associated with sev... Glucagon-like peptide receptor agonists(GLP-1RA)are used to treat type 2 diabetes mellitus and,more recently,have garnered attention for their effect-iveness in promoting weight loss.They have been associated with several gastrointestinal adverse effects,including nausea and vomiting.These side effects are presumed to be due to increased residual gastric contents.Given the potential risk of aspiration and based on limited data,the American Society of Anesthesi-ologists updated the guidelines concerning the preoperative management of patients on GLP-1RA in 2023.They included the duration of mandated cessation of GLP-1RA before sedation and usage of“full stomach”precautions if these medications were not appropriately held before the procedure.This has led to additional challenges,such as extended waiting time,higher costs,and increased risk for patients.In this editorial,we review the current societal guidelines,clinical practice,and future directions regarding the usage of GLP-1RA in patients undergoing an endoscopic procedure. 展开更多
关键词 Glucagon-like peptide receptor agonists ENDOSCOPY Adverse events INTUBATION ASPIRATION Semaglutide Healthcare burden GUIDELINES
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Role of incretins and glucagon receptor agonists in metabolic dysfunction-associated steatotic liver disease:Opportunities and challenges
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作者 Chencheng Xie Naim Alkhouri Mohamed A Elfeki 《World Journal of Hepatology》 2024年第5期731-750,共20页
Metabolic dysfunction-associated steatotic liver disease(MASLD)has become the most common chronic liver disease worldwide,paralleling the rising pandemic of obesity and type 2 diabetes.Due to the growing global health... Metabolic dysfunction-associated steatotic liver disease(MASLD)has become the most common chronic liver disease worldwide,paralleling the rising pandemic of obesity and type 2 diabetes.Due to the growing global health burden and com-plex pathogenesis of MASLD,a multifaceted and innovative therapeutic approach is needed.Incretin receptor agonists,which were initially developed for diabetes management,have emerged as promising candidates for MASLD treatment.This review describes the pathophysiological mechanisms and action sites of three major classes of incretin/glucagon receptor agonists:glucagon-like peptide-1 receptor agonists,glucose-dependent insulinotropic polypeptide receptor agonists,and glucagon receptor agonists.Incretins and glucagon directly or indirectly impact various organs,including the liver,brain,pancreas,gastro-intestinal tract,and adipose tissue.Thus,these agents significantly improve glycemic control and weight management and mitigate MASLD pathogenesis.Importantly,this study provides a summary of clinical trials analyzing the effect-iveness and safety of incretin receptor agonists in MASLD management and provides an in-depth analysis highlighting their beneficial effects on improving liver function,hepatic steatosis,and intrahepatic inflammation.There are emerging challenges associated with the use of these medications in the real world,particularly adverse events,drug-drug interactions,and barriers to access,which are discussed in detail.Additionally,this review highlights the evolving role of incretin receptor agonists in MASLD management and suggests future research directions. 展开更多
关键词 Metabolic dysfunction-associated steatotic liver disease Metabolic dysfunction-associated steatohepatitis Glucagon-like peptide-1 Glucose-dependent inulinotropic polypeptide GLUCAGON INCRETIN Receptor agonist
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Glucagon-like peptide-1 receptor agonists as a possible intervention to delay the onset of type 1 diabetes:A new horizon
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作者 Mahmoud Nassar Ajay Chaudhuri +1 位作者 Husam Ghanim Paresh Dandona 《World Journal of Diabetes》 SCIE 2024年第2期133-136,共4页
Type 1 diabetes(T1D)is a chronic autoimmune condition that destroys insulinproducing beta cells in the pancreas,leading to insulin deficiency and hyperglycemia.The management of T1D primarily focuses on exogenous insu... Type 1 diabetes(T1D)is a chronic autoimmune condition that destroys insulinproducing beta cells in the pancreas,leading to insulin deficiency and hyperglycemia.The management of T1D primarily focuses on exogenous insulin replacement to control blood glucose levels.However,this approach does not address the underlying autoimmune process or prevent the progressive loss of beta cells.Recent research has explored the potential of glucagon-like peptide-1 receptor agonists(GLP-1RAs)as a novel intervention to modify the disease course and delay the onset of T1D.GLP-1RAs are medications initially developed for treating type 2 diabetes.They exert their effects by enhancing glucose-dependent insulin secretion,suppressing glucagon secretion,and slowing gastric emptying.Emerging evidence suggests that GLP-1RAs may also benefit the treatment of newly diagnosed patients with T1D.This article aims to highlight the potential of GLP-1RAs as an intervention to delay the onset of T1D,possibly through their potential immunomodulatory and anti-inflammatory effects and preservation of beta-cells.This article aims to explore the potential of shifting the paradigm of T1D management from reactive insulin replacement to proactive disease modification,which should open new avenues for preventing and treating T1D,improving the quality of life and long-term outcomes for individuals at risk of T1D. 展开更多
关键词 Type 1 diabetes Semaglutide Glucagon-like peptide-1 receptor agonists Insulin therapy Autoimmune response Blood glucose monitoring Β-cell preservation Early screening Teplizumab Randomized controlled trials
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Determination of Ten Kinds of Alpha-2 Agonists Residues in Animal Derived Food by UHPLC-Triple Quadrupole/Composite Linear Ion Trap Mass Spectrometry
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作者 Fang LI Xuemei LI +3 位作者 Xiangang LI Sining LIU Sha LIU Ying WANG 《Plant Diseases and Pests》 2024年第1期28-32,共5页
[Objectives]The paper was to establish an ultra high performance liquid chromatography-quadrupole/linear ion trap complex mass spectrometry for the determination of 10 kinds ofα2-receptor agonists in animal derived f... [Objectives]The paper was to establish an ultra high performance liquid chromatography-quadrupole/linear ion trap complex mass spectrometry for the determination of 10 kinds ofα2-receptor agonists in animal derived food.[Methods]The samples were extracted with sodium carbonate buffer solution and ethyl acetate,and analyzed by mass spectrometry after solid phase extraction and high performance liquid chromatography separation.[Results]Ten kinds ofα2-receptor agonists showed a good linear relationship in the range of 1-100μg/mL,with the average recovery of over 69%and the relative standard deviation less than 8.32%.The detection limit of 10 kinds of α_(2)-receptor agonists was up to 1μg/kg.[Conclusions]The method has good selectivity and strong anti-interference ability,and can meet the requirements of 10 kinds ofα2-receptor agonists residues in animal derived food. 展开更多
关键词 Animal derived food α_(2)-receptor agonist Solid-phase extraction Ultra-high performance liquid phase-triple quadrupole/linear ion trap composite mass spectrometry
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三七总皂苷通过激活PPARα/Nrf2减轻内皮细胞屏障和功能损伤
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作者 祝燕平 刘亚芳 +2 位作者 祝凌丽 周兰 高磊 《右江民族医学院学报》 2024年第2期159-163,169,共6页
目的研究三七总皂苷(PNS)对氧糖剥夺/复氧(OGD/R)诱导的内皮细胞屏障和功能损伤的保护作用,并探讨其作用机制。方法使用OGD/R诱导bEnd.3细胞以建立缺血再灌注损伤模型,同时设立对照组(Control)、模型组(OGD/R)、PNS高剂量组(OGD/R+PNS ... 目的研究三七总皂苷(PNS)对氧糖剥夺/复氧(OGD/R)诱导的内皮细胞屏障和功能损伤的保护作用,并探讨其作用机制。方法使用OGD/R诱导bEnd.3细胞以建立缺血再灌注损伤模型,同时设立对照组(Control)、模型组(OGD/R)、PNS高剂量组(OGD/R+PNS 400μg/mL)、PPARα抑制剂组(OGD/R+PNS 400μg/mL+PPARαinhibitor)和Nrf2抑制剂组(OGD/R+PNS 400μg/mL+Nrf2 inhibitor)。采用CCK-8检测bEnd.3细胞活性损伤,LDH试剂盒检测乳酸脱氢酶(LDH)表达,蛋白印迹法检测ZO-1、claudin-5、occludin表达;采用细胞划痕和细胞侵袭实验检测bEnd.3细胞侵袭和迁移的水平;借助小管形成实验检测bEnd.3细胞小管形成能力。结果PNS通过激活过氧化物酶体增殖物激活受体α/核因子E2相关因子2(PPARα/Nrf2)信号减轻OGD/R诱导的bEnd.3细胞活性损伤和内皮屏障损伤,抑制细胞迁移和侵袭能力,改善血管生成损伤。结论PNS通过激活PPARα/Nrf2信号减轻OGD/R诱导的内皮细胞屏障和功能损伤。 展开更多
关键词 脑缺血 再灌注 三七总皂苷 pparΑ 核因子E2相关因子2 内皮细胞屏障
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罗格列酮调控PPARγ/NLRP3介导的细胞焦亡减轻大鼠对比剂诱导的急性肾损伤
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作者 吴佳易 郑行春 +1 位作者 黄津华 陈恩 《福建医科大学学报》 2024年第1期13-19,共7页
目的探讨罗格列酮(RSG)减轻大鼠对比剂诱导的急性肾损伤(CI-AKI)的作用机制。方法雄性SD大鼠随机分为对照组(Control组)、CI-AKI模型组(Model组)、RSG治疗组[RSG组,40 mg/(kg·d)]和过氧化物酶体增殖物激活受体γ(PPARγ)抑制剂组(T... 目的探讨罗格列酮(RSG)减轻大鼠对比剂诱导的急性肾损伤(CI-AKI)的作用机制。方法雄性SD大鼠随机分为对照组(Control组)、CI-AKI模型组(Model组)、RSG治疗组[RSG组,40 mg/(kg·d)]和过氧化物酶体增殖物激活受体γ(PPARγ)抑制剂组(T0070907组,0.15 mg/mL),每组各6只。建立CI-AKI大鼠模型,给药3 d后收集各组大鼠的血清和肾脏组织。检测肾功能指标血清肌酐(Scr)和血尿素氮(BUN)水平;ELISA检测白细胞介素-1β(IL-1β)、IL-18、活性氧(ROS)和一氧化氮(NO)含量;苏木精-伊红(H-E)染色观察肾组织病理学变化;免疫组织化学(IHC)染色检测PPARγ、NLRP3蛋白表达;TUNEL染色检测肾组织细胞焦亡指数;Western-blot检测肾组织NLRP3、凋亡相关斑点样蛋白(ASC)、含半胱氨酸的天冬氨酸蛋白水解酶-1(Caspase-1)、消皮素D(GSDMD)、IL-1β和IL-18蛋白表达。结果与Control组比较,Model组大鼠的Scr、BUN、IL-1β、IL-18、ROS和NO含量均增加(P<0.05或P<0.01);肾组织出现明显的病理损伤,细胞焦亡指数、NLRP3、ASC、Caspase-1、GSDMD、IL-1β和IL-18蛋白表达升高(P<0.01),PPARγ蛋白表达降低(P<0.01),差别均有统计学意义。与Model组比较,RSG组大鼠血清的Scr、BUN、IL-1β、IL-18、ROS和NO含量均降低,差别有统计学意义(P<0.05或P<0.01);肾组织病理损伤减轻,细胞焦亡指数、NLRP3、ASC、Caspase-1、GSDMD、IL-1β和IL-18蛋白表达降低,PPARγ蛋白表达升高,差别均有统计学意义(P<0.01)。与RSG组比较,T0070907可逆转RSG对CI-AKI大鼠上述指标的影响。结论RSG能够改善大鼠CI-AKI,促进PPARγ表达,抑制NLRP3炎症小体活化介导的细胞焦亡。 展开更多
关键词 罗格列酮 对比剂诱导的急性肾损伤 pparγ/NLRP3通路 细胞焦亡
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基于PPARγ/LXRα/ABCA1信号通路探讨芪黄疽愈方对ApoE^(-/-)小鼠动脉粥样硬化形成的影响及其作用机制 被引量:1
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作者 张欣 葛建立 +6 位作者 苏坤 张敏妹 张静 何建明 马云龙 孙云朝 楚信强 《中国老年学杂志》 CAS 北大核心 2024年第7期1688-1693,共6页
目的 基于过氧化物酶体增殖物激活受体(PPAR)γ/肝X受体(LXR)α/三磷酸腺甘结合盒转运体(ABC)A1信号通路探讨芪黄疽愈方影响对ApoE^(-/-)小鼠动脉粥样硬化(AS)形成及其作用机制。方法 选取25只C57BL/6小鼠作为空白组给予普通饲料喂饲配... 目的 基于过氧化物酶体增殖物激活受体(PPAR)γ/肝X受体(LXR)α/三磷酸腺甘结合盒转运体(ABC)A1信号通路探讨芪黄疽愈方影响对ApoE^(-/-)小鼠动脉粥样硬化(AS)形成及其作用机制。方法 选取25只C57BL/6小鼠作为空白组给予普通饲料喂饲配合生理盐水灌胃,68只ApoE^(-/-)小鼠随机分为模型组(24只)、中药组(22只)、对照组(22只)给予高脂饲料喂饲配合对应药物灌胃,12 w后通过主动脉苏木素-伊红(HE)染色证实造模成功,通过小鼠状态了解小鼠一般状况;主动脉HE染色、油红O染色观察动脉硬化及脂质沉积情况;肝脏HE染色、油红O染色观察肝脏病理变化、红染脂滴情况,并通过Western印迹、聚合酶链反应(PCR)检测PPARγ、LXRα、ABCA1蛋白表达情况。结果 空白组皮毛水润光泽,精神状态良好,活跃,饮食饮水正常;模型组精神萎靡,皮毛晦暗,倦怠懒动,饮食差,饮水正常;与模型组相比,中药组及对照组给药后各症状均有不同程度改善。各组主动脉HE、油红O染色显示,空白组主动脉切片未见AS斑块,主动脉大体标本未见明显红染脂质;与空白组相比,模型组主动脉切片可见斑块,大体标本可见明显红染脂质;与模型组相比,中药组及对照组动脉切片中AS斑块面积较小,大体标本中红染脂质面积较小。小鼠肝脏HE、油红O染色显示,空白组肝细胞结构正常,细胞核位于细胞中央,细胞沿中央静脉为中心向四周放射排列,未见脂肪变性;油红O未见红染脂质;与空白组比较,模型组肝细胞排列紊乱,胞内可见形态不同、大小不等、数量不一的脂滴空泡,油红O切片可见大量红染脂质。与模型组比较,对照组、中药组肝脏病变程度减轻,肝细胞结构大部分清晰可见,脂滴数量减少,油红O红染脂质明显减少。Western印迹检测肝脏PPARγ、LXRα、ABCA1蛋白的表达;与空白组相比,模型组PPARγ、LXRα、ABCA1蛋白表达均明显降低(P<0.05);与模型组相比,中药组均显著升高(P<0.05)。PCR检测肝脏PPARγ、LXRα、ABCA1 mRNA的表达,与空白组相比,模型组PPARγ、LXRα、ABCA1 mRNA表达均明显降低(P<0.05);与模型组相比,中药组显著升高(P<0.05)。结论 芪黄疽愈方能够影响小鼠动脉硬化,升高肝脏PPARγ、LXRα、ABCA1蛋白表达,调节肝脏脂质代谢,促进胆固醇逆转运,延缓AS进展。 展开更多
关键词 芪黄疽愈方 过氧化物酶体增殖物激活受体(ppar)γ/肝X受体(LXR)α/三磷酸腺甘结合盒转运体(ABC)A1信号通路 肝脏 脂质代谢 ApoE^(-/-)小鼠 胆固醇逆转运
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干扰PPARγ基因对绵羊滋养层细胞增殖、凋亡、迁移和脂质积累的影响
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作者 刘畅 郝科兴 +5 位作者 陈岩 曾维斌 喻恒彬 陈磊 王静 胡广东 《畜牧兽医学报》 CAS CSCD 北大核心 2024年第6期2421-2430,共10页
旨在通过干扰PPARγ基因的表达,探究PPARγ对绵羊滋养层细胞增殖活性、细胞凋亡、细胞迁移率以及脂质累积的影响,为深入研究PPARγ在绵羊滋养层细胞中的分子机制提供基础依据。本研究设计并合成干扰PPARγ基因的siRNA干扰片段,通过Weste... 旨在通过干扰PPARγ基因的表达,探究PPARγ对绵羊滋养层细胞增殖活性、细胞凋亡、细胞迁移率以及脂质累积的影响,为深入研究PPARγ在绵羊滋养层细胞中的分子机制提供基础依据。本研究设计并合成干扰PPARγ基因的siRNA干扰片段,通过Western Blot和RT-qPCR筛选干扰效率最高的siRNA,并转染至分离培养的绵羊滋养层细胞中。通过BODIPY染色检测干扰PPARγ基因后滋养层细胞中脂滴的聚积,比色法检测细胞中甘油三酯的含量,并利用RT-qPCR检测脂代谢相关基因的转录水平。采用CCK-8法、划痕试验和流式细胞法,分别探究干扰PPARγ基因对滋养层细胞增殖活性、细胞迁移率及细胞凋亡的影响。筛选得到了干扰效率最高的siPPARγ-1片段用于转染滋养层细胞,在干扰滋养层细胞PPARγ基因表达后,细胞中脂滴聚积能力下降,甘油三酯含量降低(P<0.01),脂代谢相关基因CD36、FABP4和PLIN2的转录水平也受到抑制(P<0.01)。同时,滋养层细胞的增殖活力也显著降低(P<0.05),细胞迁移率减少(P<0.01),而细胞凋亡率显著上升(P<0.01)。本研究表明PPARγ基因在调控滋养层细胞功能方面起重要作用,可对其具体分子机制进行深入研究,以期用于繁殖育种实践中。 展开更多
关键词 绵羊 滋养层细胞 pparΓ 干扰
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鲤PPARγ基因序列特征及其与脂肪沉积的相关性
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作者 周佳 刘天奇 +4 位作者 孙志鹏 吉宇丹 鲁翠云 曹顶臣 郑先虎 《水产学杂志》 CAS 2024年第2期18-25,共8页
为探讨过氧化物酶体增殖物激活受体γ(peroxisome proliferator activated receptor,PPARγ)对鲤(Cyprinus carpio)脂肪沉积的调控机制,采用RACE和实时荧光定量PCR技术克隆体质量(215.20±8.21)g鲤的PPARγ基因,分析其组织表达特征... 为探讨过氧化物酶体增殖物激活受体γ(peroxisome proliferator activated receptor,PPARγ)对鲤(Cyprinus carpio)脂肪沉积的调控机制,采用RACE和实时荧光定量PCR技术克隆体质量(215.20±8.21)g鲤的PPARγ基因,分析其组织表达特征。结果显示,PPARγ基因c DNA全长为3 077 bp,包括233 bp的5′非编码区、1 311bp的3′非编码区和编码510个氨基酸的开放阅读框。鲤PPARγ包括4个功能结构域,即A/B区,DNA结合区(DNA binding domain,DBD区),铰链区和配体结合区(ligand binding domain,LBD区)。鲤PPARγ与鲫(Carassius auratus)、斑马鱼(Danio rerio)的氨基酸序列相似性最高,分别为98.63%和87.28%。PPARγ基因在各组织均有表达,肝脏中相对表达量最高,脑次之,脾和心脏中最少。腹腔脂肪中PPARγ基因表达量多脂鲤显著高于少脂鲤(P<0.05),背部肌肉中PPARγ基因表达量多脂鲤极显著高于少脂鲤(P<0.01)。推测PPARγ具有促进脂肪沉积的作用,PPARγ基因可以作为鲤脂肪沉积候选基因用于分子选择。本研究为进一步解析鲤PPARγ基因调控脂肪沉积分子机制研究奠定了理论基础。 展开更多
关键词 pparΓ基因 基因表达 脂肪沉积
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白藜芦醇通过AMPK/PPARα/PGC1α影响酒精依赖致肝损伤机制研究
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作者 郑天翼 韩智学 +5 位作者 薛继婷 徐晓焱 张杰 刘洪凤 杨勇 岳辉 《牡丹江医学院学报》 2024年第1期1-4,58,共5页
目的 观察白藜芦醇(Resveratrol, RES)对酒精依赖大鼠肝组织损伤以及AMP依赖的蛋白激酶(adenosine 5-monophosphate-activated protein, AMPK)/过氧化物酶体增殖物激活受体α(peroxisome proliferator-activated receptorα,PPARα)/过... 目的 观察白藜芦醇(Resveratrol, RES)对酒精依赖大鼠肝组织损伤以及AMP依赖的蛋白激酶(adenosine 5-monophosphate-activated protein, AMPK)/过氧化物酶体增殖物激活受体α(peroxisome proliferator-activated receptorα,PPARα)/过氧化物酶体增殖物激活受体γ辅激活子1α(peroxisome proliferator activated receptor gamma coactivator 1 alpha, PGC1α)信号通路的影响,讨论RES治疗酒精依赖致肝损伤的修复机制,为临床应用RES提供科学依据。方法 将SPF级雄性大鼠采用随机数字表法设立空白对照组、酒精依赖模型组,采用双瓶自由饮建立20%的酒精依赖模型;酒精依赖模型组制备成功后随机分为酒精依赖模型组、RES高、中、低剂量治疗组,继续给与双瓶自由饮,RES按照100、50、25 mg/(kg·d)剂量灌胃14 d。建模期间检测大鼠体重、饮酒量和饮水量,RES治疗后蛋白免疫印迹法检测大鼠肝组织AMPK、磷酸化AMP依赖的蛋白激酶(phosphorylation-adenosine 5’-monophosphate-activated protein kinas, p-AMPK)、PPARα和PGC1α蛋白表达。结果 蛋白免疫印迹法结果显示:与空白对照组比较,酒精依赖模型组p-AMPK(t=6.61,P<0.05)、PPARα(t=3.08,P<0.05)和PGC1α(t=7.09,P<0.05)表达水平显著下调;与酒精依赖模型组比较,RES高剂量治疗组p-AMPK(F=8.60,P<0.05)、PPARα(F=4.38,P<0.05)和PGC1α(F=11.33,P<0.05)显著上调。结论 结果显示RES可能通过调控AMPK/PPARα/PGC1α信号发挥保护作用。 展开更多
关键词 白藜芦醇 酒精依赖 AMPK pparΑ PGC1α
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Pparγ调控鱼类脂质代谢作用机制的研究进展 被引量:1
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作者 谢帝芝 宋尚书 +2 位作者 陈芳 李远友 徐超 《水生生物学报》 CAS CSCD 北大核心 2024年第3期524-536,共13页
在集约化养殖过程中,鱼类普遍存在肝脏和腹腔脂肪过度蓄积,易导致代谢紊乱、炎症,抗逆抗病能力降低,严重制约了渔业的可持续性发展。作为脂质传感器,过氧化物酶体增殖物激活受体(PPARs)在脂肪代谢过程中起到了重要的枢纽作用。PPARs包含... 在集约化养殖过程中,鱼类普遍存在肝脏和腹腔脂肪过度蓄积,易导致代谢紊乱、炎症,抗逆抗病能力降低,严重制约了渔业的可持续性发展。作为脂质传感器,过氧化物酶体增殖物激活受体(PPARs)在脂肪代谢过程中起到了重要的枢纽作用。PPARs包含PPARα、PPARβ/δ和PPARγ三个亚型。其中PPARγ被认为是脂质代谢中极为关键的调控因子,在调节细胞分化、维持能量代谢稳态和炎症中也起到重要的作用。文章综述了Pparγ对鱼类脂质代谢、脂滴平衡、脂肪细胞分化的调控作用及其影响因素,以期为系统阐明Pparγ对鱼类脂代谢调控机制提供参考,为推动水产养殖业的绿色发展奠定基础。 展开更多
关键词 pparΓ 脂质代谢 调控机制 鱼类
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中医药调控PPARγ防治骨质疏松症的研究进展
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作者 吴雪 张惜燕 胡勇 《中国骨质疏松杂志》 CAS CSCD 北大核心 2024年第3期405-412,共8页
骨质疏松症是一种由于骨形成与骨吸收偶联失衡所引起的退行性疾病。过氧化物酶体增殖物激活受体γ(peroxisome proliferation⁃activated receptorsγ,PPARγ)通过调控Wnt/β⁃catenin、CEBPα、OPG/RANKL/RANK信号通路加快骨质疏松症的... 骨质疏松症是一种由于骨形成与骨吸收偶联失衡所引起的退行性疾病。过氧化物酶体增殖物激活受体γ(peroxisome proliferation⁃activated receptorsγ,PPARγ)通过调控Wnt/β⁃catenin、CEBPα、OPG/RANKL/RANK信号通路加快骨质疏松症的发生与发展。研究发现,中药可靶向PPARγ调控这些信号通路,促进成骨细胞形成,抑制破骨细胞的吸收作用,从而发挥抗骨质疏松症的作用。本文通过检索PubMed、中国知网、万方、维普等数据库,将近十年收录有关中药通过抑制PPARγ防治骨质疏松症的研究文献进行概括与总结,以期为中药治疗骨质疏松症的深入研究提供参考依据。 展开更多
关键词 骨质疏松症 中药 pparΓ 成骨细胞 破骨细胞
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葱白提取物通过PPARγ/HO-1途径对动脉粥样硬化大鼠血脂异常和炎症反应的调节作用
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作者 范鸿儒 王栋 +3 位作者 张帆 杨力 易春峰 贺立群 《检验医学与临床》 CAS 2024年第9期1208-1213,共6页
目的探讨葱白提取物(FOB)通过调控过氧化物酶体增殖物激活受体γ(PPARγ)/血红素氧合酶1(HO-1)途径对动脉粥样硬化(AS)大鼠血脂异常和炎症反应的影响。方法40只SD大鼠随机分为对照组、模型组(AS组)、FOB组和FOB+GW9662组,每组10只。对... 目的探讨葱白提取物(FOB)通过调控过氧化物酶体增殖物激活受体γ(PPARγ)/血红素氧合酶1(HO-1)途径对动脉粥样硬化(AS)大鼠血脂异常和炎症反应的影响。方法40只SD大鼠随机分为对照组、模型组(AS组)、FOB组和FOB+GW9662组,每组10只。对照组大鼠给予正常饲料喂养,其余3组大鼠均建立AS模型。各组大鼠连续给药4周。采用苏木精-伊红(HE)染色与油红O染色观察主动脉病变和脂质沉积情况;采用全自动分析仪检测总胆固醇(TC)、甘油三酯(TG)、低密度脂蛋白胆固醇(LDL-C)和高密度脂蛋白胆固醇(HDL-C)水平,并计算动脉粥样硬化指数(AI);采用酶联免疫吸附试验(ELISA)检测白细胞介素-6(IL-6)、白细胞介素-1β(IL-1β)和肿瘤坏死因子-α(TNF-α)水平;采用实时定量聚合酶链反应(qRT-PCR)法和Western blot法分别检测大鼠胸主动脉组织中PPARγ和HO-1的mRNA和蛋白表达水平。结果与对照组相比,AS组大鼠胸主动脉管壁明显增厚,内膜下可见炎症细胞浸润和泡沫细胞堆积,脂质斑块形成;FOB组大鼠胸主动脉组织病理变化及脂质斑块较AS组明显改善;FOB+GW9662组大鼠胸主动脉组织病理变化及脂质斑块较FOB组明显加重。与对照组相比,AS组大鼠血清TC、TG、LDL-C、IL-6、IL-1β、TNF-α水平及AI均显著升高(P<0.05),HDL-C水平及胸主动脉组织中PPARγ和HO-1的mRNA、蛋白表达水平均显著降低(P<0.05)。与AS组相比,FOB组大鼠血清TC、TG、LDL-C、IL-6、IL-1β、TNF-α水平及AI均显著降低(P<0.05),HDL-C水平及胸主动脉组织中PPARγ和HO-1的mRNA、蛋白表达水平均显著升高(P<0.05)。与FOB组相比,FOB+GW9662组大鼠血清TC、TG、LDL-C、IL-6、IL-1β、TNF-α水平及AI均显著升高(P<0.05),HDL-C水平及胸主动脉组织中PPARγ和HO-1的mRNA、蛋白表达水平均显著降低(P<0.05)。结论FOB可能通过激活PPARγ/HO-1信号通路调节血脂异常和炎症反应,缓解大鼠AS进展。 展开更多
关键词 葱白提取物 动脉粥样硬化 脂质代谢 炎症反应 pparγ/HO-1信号通路
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Simultaneous Determination of 14 β-Receptor Agonists Residues in Mutton by High Performance Liquid Chromatography-Tandem Mass Spectrometry (HPLC-MS/MS)
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作者 Zhe MENG Jianhua WANG +5 位作者 Bo LIU Yuhang GUO Haoshuang DONG Pingyang SHAN Dawei WANG Yajuan SONG 《Agricultural Biotechnology》 CAS 2023年第5期55-58,共4页
[Objectives]A high performance liquid chromatography-tandem mass spectrometry(HPLC-MS/MS)method was established for the determination of 14β-receptor agonist residues in mutton.[Methods]Samples were hydrolyzed byβ-g... [Objectives]A high performance liquid chromatography-tandem mass spectrometry(HPLC-MS/MS)method was established for the determination of 14β-receptor agonist residues in mutton.[Methods]Samples were hydrolyzed byβ-glucuronidase and extracted with 5%acetic acid-acetonitrile(1:99,V/V)solution.An Eclipse plus C 18 column was used for separation,and the MRM mode was used for qualitative analysis,and the external standard method was used for quantitative analysis of matrix standard solutions.[Results]Under the optimal conditions,the retention time of the 14 kinds ofβ-receptor agonists ranged from 1.0 to 9.5 min.When the mass concentration was in the range of 0.05-0.50μg/ml,the linear relationship ofβ-receptor agonists was good,with correlation coefficients(r)≥0.9992.The detection limits of the method were in the range of 0.04-0.87μg/kg,and the quantitative limits were in the range of 0.35-1.86μg/kg.The average recovery values were in the range of 82.8%-108.9%,with RSDs(n=6)in the range of 1.9%-6.7%.[Conclusions]The method is simple,sensitive,reproducible,accurate,and can be used for simultaneous determination of the 14 kinds ofβ-receptor agonist residues in mutton. 展开更多
关键词 MUTTON High performance liquid chromatography-tandem mass spectrometry β-receptor agonist RESIDUE
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补阳还五汤通过cAMP/PKA/PPARγ通路调控脂质代谢抗大鼠脑缺血再灌注损伤的作用
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作者 欧阳银 陈博威 +4 位作者 刘英飞 曾繁佐 易健 田丰铭 刘柏炎 《中药新药与临床药理》 CAS CSCD 北大核心 2024年第5期667-673,共7页
目的探究补阳还五汤通过cAMP/PKA/PPARγ通路调控脂质代谢抗大鼠脑缺血再灌注损伤的作用机理。方法将60只大鼠随机分为假手术组、模型组、丁苯酞组及补阳还五汤低、中、高剂量组。采用短暂性大脑中动脉栓塞法制备脑缺血再灌注模型,补阳... 目的探究补阳还五汤通过cAMP/PKA/PPARγ通路调控脂质代谢抗大鼠脑缺血再灌注损伤的作用机理。方法将60只大鼠随机分为假手术组、模型组、丁苯酞组及补阳还五汤低、中、高剂量组。采用短暂性大脑中动脉栓塞法制备脑缺血再灌注模型,补阳还五汤低、中、高剂量组予不同剂量补阳还五汤灌胃(6.413、12.825、25.65 g·kg^(-1)),丁苯酞(NBP)组予丁苯酞灌胃(54 mg·kg^(-1)),假手术组和模型组予等体积蒸馏水灌胃,连续14 d。对大鼠进行神经行为学评分,HE染色观察大脑病理变化,试剂盒检测缺血侧磷酸胆碱(PC)、磷脂酰乙醇胺(PE)、甘油二酯(DAG)、游离脂肪酸(FFA)含量,RT-qPCR和WesternBlot法检测环磷酸腺苷(cAMP)、蛋白激酶A(PKA)、过氧化物酶体增殖物激活受体(PPARγ)中mRNA及蛋白表达。结果与假手术组比较,模型组神经功能缺损评分明显升高(P<0.01);缺血侧皮质出现病理形态损伤;PC、PE含量降低,DAG、FFA含量升高(P<0.01);cAMP的mRNA升高(P<0.05)。与模型组比较,补阳还五汤低剂量组神经功能缺损评分降低(P<0.05),补阳还五汤中、高剂量组和丁苯酞组神经功能缺损评分明显降低(P<0.01);各给药组细胞排列相对规整,细胞间隙减小,正常细胞增多;补阳还五汤中、高剂量组和丁苯酞组PC、PE明显升高,DAG、FFA明显降低(P<0.01);补阳还五汤低剂量组PC升高,FFA、DAG明显降低(P<0.05,P<0.01);补阳还五汤低剂量组PPARγ的mRNA表达升高(P<0.05),补阳还五汤中、高剂量组和丁苯酞组cAMP、PKA、PPARγ的mRNA及蛋白表达升高(P<0.05,P<0.01)。结论补阳还五汤对脑缺血再灌注损伤大鼠具有神经保护作用,其机制可能与调控cAMP/PKA/PPARγ信号通路关键因子的表达,调节脂质代谢有关。 展开更多
关键词 补阳还五汤 脑缺血再灌注 cAMP/PKA/pparγ信号通路 脂质代谢 神经保护 大鼠
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Effects of glucagon-like peptide-1 receptor agonists on glucose excursion and inflammation in overweight or obese type 2 diabetic patients
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作者 Xiao-Min Huang Xing Zhong +2 位作者 Yi-Jun Du Yan-Yun Guo Tian-Rong Pan 《World Journal of Diabetes》 SCIE 2023年第8期1280-1288,共9页
BACKGROUND Currently,the lack of comparative studies between weekly and daily formulations of glucagon-like peptide-1 receptor agonists(GLP-1RAs)for glucose excursion is worth investigation.AIM To investigate the effe... BACKGROUND Currently,the lack of comparative studies between weekly and daily formulations of glucagon-like peptide-1 receptor agonists(GLP-1RAs)for glucose excursion is worth investigation.AIM To investigate the effects of weekly and daily formulations of GLP-1RA on glucose excursion and inflammation in overweight and obese patients with type 2 diabetes.METHODS Seventy patients with type 2 diabetes mellitus who were treated at our hospital between January 2019 and January 2022 were enrolled in this retrospective analysis.All patients were treated with metformin.We evaluated changes in blood glucose levels and a series of important indicators in patients before and after treatment with either a weekly or daily preparation of GLP-1RA(group A;n=33 and group B;n=37).RESULTS The degree of decrease in the levels of fasting blood glucose,mean blood glucose,mean amplitude of glycemic excursions,total cholesterol,triglycerides,tumor necrosis factor-α,interleukin-6,and high-sensitivity C-reactive protein after treatment in group A was higher than that in group B(P<0.05),whereas the 2-h postprandial blood glucose levels decreased more so in group B than in group A(P<0.001).However,there were no statistically significant differences in the levels of glycated hemoglobin,standard deviation of blood glucose,coefficient of variation,absolute mean of daily differences,percentage of time with 3.9 mmol/L<glucose<10 mmol/L,and high-and low-density lipoproteins between the two groups(P>0.05).The incidence of adverse reactions was significantly lower in group A than in group B(P<0.05).CONCLUSION The effect of the weekly preparation of GLP-1RA in controlling blood glucose levels in the patients,suppressing inflammation,and reducing adverse reactions was significantly higher than that of the daily preparations,which is worthy of clinical promotion. 展开更多
关键词 Glucagon-like peptide-1 receptor agonists Weekly preparation Daily preparation Overweight or obese Type 2 diabetes mellitus Glucose excursion INFLAMMATION
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