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Glucagon-like peptide 1 agonists are potentially useful drugs for treating metabolic dysfunction-associated steatotic liver disease 被引量:1
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作者 Maurizio Soresi Lydia Giannitrapani 《World Journal of Gastroenterology》 SCIE CAS 2024年第30期3541-3547,共7页
In this editorial,we comment on Yin et al’s recently published Letter to the editor.In particular,we focus on the potential use of glucagon-like peptide 1 receptor agonists(GLP-1RAs)alone,but even more so in combinat... In this editorial,we comment on Yin et al’s recently published Letter to the editor.In particular,we focus on the potential use of glucagon-like peptide 1 receptor agonists(GLP-1RAs)alone,but even more so in combination therapy,as one of the most promising therapies in metabolic dysfunction-associated steatotic liver disease(MASLD),the new definition of an old condition,non-alcoholic fatty liver disease,which aims to better define the spectrum of steatotic pathology.It is well known that GLP-1RAs,having shown outstanding performance in fat loss,weight loss,and improvement of insulin resistance,could play a role in protecting the liver from progressive damage.Several clinical trials have shown that,among GLP-1RAs,semaglutide is a safe,well-studied therapeutic choice for MASLD patients;however,most studies demonstrate that,while semaglutide can reduce steatosis,including steatohepatitis histological signs(in terms of inflammatory cell infiltration and hepatocyte ballooning),it does not improve fibrosis.Combinations of therapies with different but complementary mechanisms of action are considered the best way to improve efficiency and slow disease progression due to the complex pathophysiology of the disease.In particular,GLP-1RAs associated with antifibrotic drug therapy,dual glucose-dependent insulinotropic polypeptide(GIP)/GLP-1RA or GLP-1 and glucagon RAs have promoted greater improvement in hepatic steatosis,liver biochemistry,and non-invasive fibrosis tests than monotherapy.Therefore,although to date there are no definitive indications from international drug agencies,there is the hope that soon the therapeutic lines in the most advanced phase of study will be able to provide a therapy for MASLD,one that will certainly include the use of GLP-1RAs as combination therapy. 展开更多
关键词 Non-alcoholic fatty liver disease glucagon-like peptide 1 Semaglutide Liver fibrosis Therapy
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Glucagon-like peptide 1 receptor activation:anti-inflammatory effects in the brain
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作者 Yolanda Diz-Chaves Zainab Maastor +3 位作者 Carlos Spuch José Antonio Lamas Lucas C.González-Matías Federico Mallo 《Neural Regeneration Research》 SCIE CAS CSCD 2024年第8期1671-1677,共7页
The glucagon-like peptide 1 is a pleiotropic hormone that has potent insulinotropic effects and is key in treating metabolic diseases such as diabetes and obesity.Glucagon-like peptide 1 exerts its effects by activati... The glucagon-like peptide 1 is a pleiotropic hormone that has potent insulinotropic effects and is key in treating metabolic diseases such as diabetes and obesity.Glucagon-like peptide 1 exerts its effects by activating a membrane receptor identified in many tissues,including diffe rent brain regions.Glucagon-like peptide 1 activates several signaling pathways related to neuroprotection,like the support of cell growth/survival,enhancement promotion of synapse formation,autophagy,and inhibition of the secretion of proinflammatory cytokines,microglial activation,and apoptosis during neural morphogenesis.The glial cells,including astrocytes and microglia,maintain metabolic homeostasis and defe nse against pathogens in the central nervous system.After brain insult,microglia are the first cells to respond,followed by reactive astrocytosis.These activated cells produce proinflammato ry mediators like cytokines or chemokines to react to the insult.Furthermore,under these circumstances,mic roglia can become chro nically inflammatory by losing their homeostatic molecular signature and,consequently,their functions during many diseases.Several processes promote the development of neurological disorders and influence their pathological evolution:like the formation of protein aggregates,the accumulation of abnormally modified cellular constituents,the formation and release by injured neurons or synapses of molecules that can dampen neural function,and,of critical impo rtance,the dysregulation of inflammato ry control mechanisms.The glucagonlike peptide 1 receptor agonist emerges as a critical tool in treating brain-related inflammatory pathologies,restoring brain cell homeostasis under inflammatory conditions,modulating mic roglia activity,and decreasing the inflammato ry response.This review summarizes recent advances linked to the anti-inflammato ry prope rties of glucagon-like peptide 1 receptor activation in the brain related to multiple sclerosis,Alzheimer’s disease,Parkinson’s disease,vascular dementia,or chronic migraine. 展开更多
关键词 ASTROCYTES BRAIN glucagon-like peptide 1 receptor INFLAMMATION MICROGLIA
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Glucagon-like peptide 1 receptor agonist:A potential game changer for cholangiocarcinoma
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作者 Ronnakrit Trakoonsenathong Ching-Feng Chiu Charupong Saengboonmee 《World Journal of Gastroenterology》 SCIE CAS 2024年第34期3862-3867,共6页
Glucagon-like peptide-1 receptor(GLP-1R)agonist,a subgroup of incretin-based anti-diabetic therapies,is an emerging medication with benefits in reducing blood glucose and weight and increasing cardiovascular protectio... Glucagon-like peptide-1 receptor(GLP-1R)agonist,a subgroup of incretin-based anti-diabetic therapies,is an emerging medication with benefits in reducing blood glucose and weight and increasing cardiovascular protection.Contrarily,concerns have been raised about GLP-1R agonists increasing the risk of particular cancers.Recently,several epidemiological studies reported contradictory findings of incretin-based therapy on the risk modification for cholangiocarcinoma(CCA).The first cohort study demonstrated that incretin-based therapy was associated with an increased risk of CCA.Later studies,however,showed a null effect of incretinbased therapy on CCA risk for dipeptidyl peptidase-4 inhibitor nor GLP-1R agonist.Mechanistically,glucagon-like peptide 1 receptor is multifunctional,including promoting cell growth.High GLP-1R expressions were associated with progressive phenotypes of CCA cells in vitro.Unexpectedly,the GLP-1R agonist showed anti-tumor effects on CCA cells in vitro and in vivo with unclear mechanisms.Our recent report also showed that GLP-1R agonists suppressed the expression of GLP-1R in CCA cells in vitro and in vivo,leading to the inhibition of CCA tumor growth.This editorial reviews recent evidence,discusses the potential effects of GLP-1R agonists in CCA patients,and proposes underlying mechanisms that would benefit from further basic and clinical investigation. 展开更多
关键词 CARCINOGENESIS CHOLANGIOCARCINOMA Diabetes mellitus INCRETIN glucagon-like peptide 1 receptor
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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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Is Glucagon-like peptide-1, an agent treating diabetes, a new hope for Alzheimer's disease?
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作者 李琳 《Neuroscience Bulletin》 SCIE CAS CSCD 2007年第1期58-65,共8页
Glucagon-like peptide- 1 (GLP- 1) has been endorsed as a promising and attractive agent in the treatment of type 2 diabetes mellitus (T2DM). Both Alzheimer's disease (AD) and T2DM share some common pathophysiol... Glucagon-like peptide- 1 (GLP- 1) has been endorsed as a promising and attractive agent in the treatment of type 2 diabetes mellitus (T2DM). Both Alzheimer's disease (AD) and T2DM share some common pathophysiologic hallmarks, such as amyloid β (Aβ), phosphoralation of tau protein, and glycogen synthase kinase-3. GLP-1 possesses neurotropic properties and can reduce amyloid protein levels in the brain. Based on extensive studies during the past decades, the understanding on AD leads us to believe that the primary targets in AD are the Aβ and tau protein. Combine these findings, GLP- 1 is probably a promising agent in the therapy of AD. This review was focused on the biochemistry and physiology of GLP- 1, communities between T2DM and AD, new progresses of GLP - 1 in treating T2MD and improving some pathologic hanmarks of AD. 展开更多
关键词 glucagon-like peptide 1 type 2 diabetes mellitus Alzheimer's disease
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Effects of glucagon-like peptide-1 receptor agonists on renal function 被引量:9
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作者 Theodosios D Filippatos Moses S Elisaf 《World Journal of Diabetes》 SCIE CAS 2013年第5期190-201,共12页
Glucagon-like peptide-1(GLP-1)receptor agonists result in greater improvements in glycemic control than placebo and promote weight loss with minimal hypoglycemia in patients with type 2 diabetes mellitus.A number of c... Glucagon-like peptide-1(GLP-1)receptor agonists result in greater improvements in glycemic control than placebo and promote weight loss with minimal hypoglycemia in patients with type 2 diabetes mellitus.A number of case reports show an association of GLP-1receptor agonists,mainly exenatide,with the development of acute kidney injury.The present review aims to present the available data regarding the effects of GLP-1 receptor agonists on renal function,their use in subjects with chronic renal failure and their possible association with acute kidney injury.Based on the current evidence,exenatide is eliminated by renal mechanisms and should not be given in patients with severe renal impairment or end stage renal disease.Liraglutide is not eliminated by renal or hepatic mechanisms,but it should be used with caution since there are only limited data in patients with renal or hepatic impairment.There is evidence from animal studies that GLP-1 receptor agonists exert protective role in diabetic nephropathy with mechanisms that seem to be independent of their glucose-lowering effect.Additionally,there is evidence that GLP-1 receptor agonists influence water and electrolyte balance.These effects may represent new ways to improve or even prevent diabetic nephropathy. 展开更多
关键词 glucagon-like peptide 1 glucagon-like peptide 1 receptor agonists EXENATIDE LIRAGLUTIDE Kidney Renal impairment Diabetic nephropathy Electrolytes
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Glucagon-like peptide 1 in the pathophysiology and pharmacotherapy of clinical obesity 被引量:2
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作者 Ananthi Anandhakrishnan Márta Korbonits 《World Journal of Diabetes》 SCIE CAS 2016年第20期572-598,共27页
Though the pathophysiology of clinical obesity is un-doubtedly multifaceted, several lines of clinical evidence implicate an important functional role for glucagon-like peptide 1(GLP-1) signalling. Clinical studies as... Though the pathophysiology of clinical obesity is un-doubtedly multifaceted, several lines of clinical evidence implicate an important functional role for glucagon-like peptide 1(GLP-1) signalling. Clinical studies assessing GLP-1 responses in normal weight and obese subjects suggest that weight gain may induce functional deficits in GLP-1 signalling that facilitates maintenance of the obesity phenotype. In addition, genetic studies implicate a possible role for altered GLP-1 signalling as a risk factor towards the development of obesity. As reductions in functional GLP-1 signalling seem to play a role in clinical obesity, the pharmacological replenishment seems a promising target for the medical management of obesity in clinical practice. GLP-1 analogue liraglutide at a high dose(3 mg/d) has shown promising results in achieving and maintaining greater weight loss in obese individuals compared to placebo control, and currently licensed antiobesity medications. Generally well tolerated, provided that longer-term data in clinical practice supports the currently available evidence of superior short- and longterm weight loss efficacy, GLP-1 analogues provide promise towards achieving the successful, sustainable medical management of obesity that remains as yet, an unmet clinical need. 展开更多
关键词 OBESITY pathophysiology glucagon-like peptide 1 analogues glucagon-like peptide 1 CLINICAL OBESITY
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Potential therapeutic targets for nonalcoholic fatty liver disease:Glucagon-like peptide 1 被引量:1
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作者 Yue-Hua Yin Li-Xuan Sang Bing Chang 《World Journal of Gastroenterology》 SCIE CAS 2023年第48期6235-6238,共4页
Nonalcoholic fatty liver disease(NAFLD)is the most rapidly growing contributor to liver mortality and morbidity.Hepatocellular injury in nonalcoholic steatohepatitis(NASH)is caused by an increase in metabolic substrat... Nonalcoholic fatty liver disease(NAFLD)is the most rapidly growing contributor to liver mortality and morbidity.Hepatocellular injury in nonalcoholic steatohepatitis(NASH)is caused by an increase in metabolic substrates(glucose,fructose,and fatty acids),leading fatty acids to participate in pathways that cause cellular injury and a poor response to injury.The pathogenesis of this disease is largely associated with obesity,type 2 diabetes,and increasing age.To date,there are no Food and Drug Administration-approved treatments for NAFLD/NASH or its associated fibrosis.Since one of the pathogenic drivers of NASH is insulin resistance,therapies approved for the treatment of type 2 diabetes are being evaluated in patients with NASH.Currently,the glucagon-like peptide-1 receptor agonist(GLP-1RA)semaglutide is a safe,well-studied therapeutic for NAFLD/NASH patients.Existing research demonstrates that semaglutide can increase the resolution of NASH but not improve fibrosis.However,improving the fibrosis of NAFLD is the only way to improve the long-term prognosis of NAFLD.Given the complex pathophysiology of NASH,combining therapies with complementary mechanisms may be beneficial.Researchers have conducted trials of semaglutide in combination with antifibrotic drugs.However,the results have not fully met expectations,and it cannot be ruled out that the reason is the short trial time.We should continue to pay increasing attention to GLP-1RAs. 展开更多
关键词 Nonalcoholic fatty liver disease Nonalcoholic steatohepatitis Antidiabetic drugs glucagon-like peptide 1 Semaglutide
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Effects of Glucagon-Like Peptide 1 on PDX-1, PAX-6 and NKx2.2 Gene Expressions in Isolated Pancreatic Islets 被引量:1
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作者 Dai Cui Wei Tang Cuiping Liu Kuanfeng Xu Chao Liu 《Journal of Nanjing Medical University》 2006年第3期141-144,共4页
Objective: To observe the effect of glucagon-like peptide 1 (GLP-1) on the gene expressions of transcription factors (PDX-1, PAX-6 and NKx2.2 ) in freshly isolated rat pancreatic islets and investigate the associ... Objective: To observe the effect of glucagon-like peptide 1 (GLP-1) on the gene expressions of transcription factors (PDX-1, PAX-6 and NKx2.2 ) in freshly isolated rat pancreatic islets and investigate the associated physiological and therapeutic implication of GLP-1. Methods: The isolated rat islets were incubated with 10 nmol/L GLP-1 for 1, 3 and 5 days, respectively. Total cellular RNA was extracted and the expressions of PDX-1, PAX-6 and NKx2.2 gene were detected by semiquantity RT-PCR. Results: Compared with the control group, the PDX-1, PAX-6 and NKx2.2 gene expressions were significantly increased after co-cultured with GLP-1 for 1 day (P 〈 0.05). The effect was shown in a time-dependent manner. All three gene expressions reached the peak on the 5th day. Conclusion: GLP-1 can improve the function of pancreatic islet by regulating the gene expressions of transcription factors in β cells. 展开更多
关键词 glucagon-like peptide 1 ISLET transcription factor diabetes mellitus
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Glucagon-like peptide 1 receptor governs Wnt signaling to promote bone formation
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《中国药理学通报》 CAS CSCD 北大核心 2015年第B11期7-7,共1页
Our previous investigation found that exendin-4 (Ex-4) , a peptide analogue of glucagon-like peptide 1 (GLP-1) , induced bone formation probably by osteoblast activation. Nevertheless, previous investigations did ... Our previous investigation found that exendin-4 (Ex-4) , a peptide analogue of glucagon-like peptide 1 (GLP-1) , induced bone formation probably by osteoblast activation. Nevertheless, previous investigations did not observe any expression of GLP-1 receptors in osteoblasts, indicating that the direct cell target of GLP-1 and its ana- logues might not be osteoblasts but some other types of cells yet to be identified. To elucidate the underlying mecha- nisms, we performed further investigation in the present study and found that GLP-1 receptor was only identified in bone marrow mesenchymal stem cells (BMSCs). Furthermore, activation of GLP-1 receptor by Ex-4 promoted the differentiation of B MSCs into osteoblast, which was associated with activation of PKA, nuclear translocation of [5- catenin, activation of PI3K/AKT and inhibition of GSK3β. Ex-4 also inhibited the adipocyte differentiation of BM- SCs, as evidenced by inhibition of PPARγ, lipoprotein lipase expression and lipid production. Blockade of GLP-1 receptor, PKA, PI3K or Wnt pathway, or respective knock-down of GLP-1 receptor and β-catenin in BMSCs inhib- ited the Ex-4 mediated effects. The results indicated that the GLP-1 receptor mediated osteoblastic differentiation and bone formation through stimulation of PKA/β-catenin signaling and inhibition of PKA/PI3IC/AKT/GSK3β? signaling pathway in BMSCs. The findings reveal a new role of GLP-1 receptor for regulating osteoblastic differentia- tion of B MSCs and may provide a molecular basis for novel anabolic therapeutics against osteoporosis. 展开更多
关键词 EXENDIN-4 glucagon-like peptide 1 RECEPTOR MESENCHYMAL stem cells OSTEOBLAST OSTEOPOROSIS
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Solid phase synthesis of fatty acid modified glucagon-like peptide-1(7-36) amide under thermal and controlled microwave irradiation
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作者 Ni, Shuai Han Zhang, Hui Bin +2 位作者 Huang, Wen Long Zhou, Jin Pei Qian, Hai 《Chinese Chemical Letters》 SCIE CAS CSCD 2010年第1期27-30,共4页
Fatty acid modified glucagon-like peptide-1(7-36) amide was synthesized efficiently on Rink-Amide-MBHA resin by microwave-assisted solid phase method.The method of thermal and controlled microwave irradiation provided... Fatty acid modified glucagon-like peptide-1(7-36) amide was synthesized efficiently on Rink-Amide-MBHA resin by microwave-assisted solid phase method.The method of thermal and controlled microwave irradiation provided impressive enhancements in product yield,selectivity,and reaction rate.The coupling time was dramatically decreased to 6 min,and the desired products were obtained in high yield and purity. 展开更多
关键词 glucagon-like peptide-1 glp-1 MICROWAVE Solid phase Fatty acid modification
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Postprandial glucagon-like peptide 1 secretion is associated with urinary albumin excretion in newly diagnosed type 2 diabetes patients
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作者 Lu-Lu Song Na Wang +4 位作者 Jin-Ping Zhang Li-Ping Yu Xiao-Ping Chen Bo Zhang Wen-Ying Yang 《World Journal of Diabetes》 SCIE 2023年第3期279-289,共11页
BACKGROUND Microalbuminuria is an early and informative marker of diabetic nephropathy.Our study found that microalbuminuria developed in patients with newly diagnosed type 2 diabetes mellitus(T2DM).AIM To investigate... BACKGROUND Microalbuminuria is an early and informative marker of diabetic nephropathy.Our study found that microalbuminuria developed in patients with newly diagnosed type 2 diabetes mellitus(T2DM).AIM To investigate the association between glucagon-like peptide 1(GLP-1)and microalbuminuria in newly diagnosed T2DM patients.METHODS In total,760 patients were recruited for this cross-sectional study.The GLP-1 levels during a standard meal test and urinary albumin-creatinine ratio(UACR)were determined.RESULTS Patients with microalbuminuria exhibited lower GLP-1 levels at 30 min and 120 min during a standard meal test than patients with normal albuminuria(30 min GLP-1,16.7±13.3 pmol vs 19.9±15.6 pmol,P=0.007;120 min GLP-1,16.0±14.1 pmol vs 18.4±13.8 pmol,P=0.037).The corresponding area under the curve for active GLP-1(AUCGLP-1)was also lower in microalbuminuria patients(2257,1585 to 3506 vs 2896,1763 to 4726,pmol×min,P=0.003).Postprandial GLP-1 levels at 30 min and 120 min and AUCGLP-1 were negatively correlated with the UACR(r=0.159,r=0.132,r=0.206,respectively,P<0.001).The prevalence of microalbuminuria in patients with newly diagnosed T2DM was 21.7%,which decreased with increasing quartiles of AUCGLP-1 levels(27.4%,25.3%,18.9%and 15.8%).After logistic regression analysis adjusted for sex,age,hemoglobin A1c,body mass index,systolic blood pressure,estimated glomerular filtration rate,homeostasis model assessment of insulin resistance,AUC_(glucose)and AUC_(glucagon)patients in quartile 4 of the AUCGLP-1 presented a lower risk of microalbuminuria compared with the patients in quartile 1(odds ratio=0.547,95%confidence interval:0.325-0.920,P=0.01).A consistent association was also found between 30 min GLP-1 or 120 min GLP-1 and microalbuminuria.CONCLUSION Postprandial GLP-1 levels were independently associated with microalbuminuria in newly diagnosed Chinese T2DM patients. 展开更多
关键词 MICROALBUMINURIA glucagon-like peptide 1 Type 2 diabetes NEPHROPATHY
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Screening and Identification of a Targeting Peptide to nGLP-1R from Phage Display Peptide Library
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作者 REN Hui XIONG Xin-hui +6 位作者 JIANG Tao ZHANG Yang-de WEI Zhong-hang SONG Xiang-wei GUAN Shu-wen WANG Yan WANG Li-ping 《Chemical Research in Chinese Universities》 SCIE CAS CSCD 2010年第4期604-607,共4页
In order to provide the structure information for designing new exendin-4 analogues, a phage display peptide library was screened by targeting the N-terminal extracellular domain of GLP-1R(nGLP-1R). After four round... In order to provide the structure information for designing new exendin-4 analogues, a phage display peptide library was screened by targeting the N-terminal extracellular domain of GLP-1R(nGLP-1R). After four rounds of selection, nine sequences were obtained, four of them have higher affinity for nGLP-1R than the others. We chose two of them named X and Y peptides. Islet β-cell proliferation assay suggested that X and Y peptides didn't have any activity to increase islet β-cell proliferation. In other words, X and Y peptides were not agonists to GLP-1R. However, the conservative motifs of X and Y peptides provided us useful information to design new exendin-4 analogues. 展开更多
关键词 glp-1 receptor Phage display peptide library EXENDIN-4
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Pharmacological inhibition of diacylglycerol acyltransferase-1 and insights into postprandial gut peptide secretion 被引量:2
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作者 Benjamin S Maciejewski Tara B Manion Claire M Steppan 《World Journal of Gastrointestinal Pathophysiology》 CAS 2017年第4期161-175,共15页
AIM To examine the role that enzyme Acyl-CoA:diacylglycerol acyltransferase-1(DGAT1) plays in postprandial gut peptide secretion and signaling.METHODS The standard experimental paradigm utilized to evaluate the incret... AIM To examine the role that enzyme Acyl-CoA:diacylglycerol acyltransferase-1(DGAT1) plays in postprandial gut peptide secretion and signaling.METHODS The standard experimental paradigm utilized to evaluate the incretin response was a lipid challenge.Following a lipid challenge,plasma was collected via cardiac puncture at each time point from a cohort of 5-8 mice per group from baseline at time zero to 10 h.Incretin hormones [glucagon like peptide-1(GLP-1),peptide tyrosine-tyrosine(PYY) and glucose dependent insulinotropic polypeptide(GIP)] were then quantitated.The impact of pharmacological inhibition of DGAT1 on the incretin effect was evaluated in WT mice.Additionally,a comparison of loss of DGAT1 function either by genetic ablation or pharmacological inhibition.To further elucidate the pathways and mechanisms involved in the incretin response to DGAT1 inhibition,other interventions [inhibitors of dipeptidyl peptidase-IV(sitagliptin),pancreatic lipase(Orlistat),GPR119 knockout mice] were evaluated.RESULTS DGAT1 deficient mice and wildtype C57/BL6J mice werelipid challenged and levels of both active and total GLP-1 in the plasma were increased.This response was further augmented with DGAT1 inhibitor PF-04620110 treated wildtype mice.Furthermore,PF-04620110 was able to dose responsively increase GLP-1 and PYY,but blunt GIP at all doses of PF-04620110 during lipid challenge.Combination treatment of PF-04620110 and Sitagliptin in wildtype mice during a lipid challenge synergistically enhanced postprandial levels of active GLP-1.In contrast,in a combination study with Orlistat,the ability of PF-04620110 to elicit an enhanced incretin response was abrogated.To further explore this observation,GPR119 knockout mice were evaluated.In response to a lipid challenge,GPR119 knockout mice exhibited no increase in active or total GLP-1 and PYY.However,PF-04620110 was able to increase total GLP-1 and PYY in GPR119 knockout mice as compared to vehicle treated wildtype mice.CONCLUSION Collectively,these data provide some insight into the mechanism by which inhibition of DGAT1 enhances intestinal hormone release. 展开更多
关键词 glucagon-like peptide-1 peptide tyrosinetyrosine Glucose independent insulinotropic peptide ACYL-COA diacylglycerol acyltransferase-1 INCRETIN
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Antihypertensive Effect of Sodium-Glucose Cotransporter 2 Inhibitors and Glucagon-like Peptide 1 Receptor Agonists
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作者 Marijana Tadic Cesare Cuspidi 《Cardiology Discovery》 2024年第1期38-42,共5页
An increasing body of evidence shows that new antidiabetic drugs—particularly sodium-glucose cotransporter 2(SGLT2)inhibitors and glucagon-like peptide 1(GLP-1)receptor agonists—have a beneficial effect on cardiovas... An increasing body of evidence shows that new antidiabetic drugs—particularly sodium-glucose cotransporter 2(SGLT2)inhibitors and glucagon-like peptide 1(GLP-1)receptor agonists—have a beneficial effect on cardiovascular outcome.The majority of these studies have been performed in patients with heart failure and the results have shown first positive effect on blood pressure(BP)reduction.These effects are more pronounced with SGLT2 inhibitors than with GLP-1 receptor agonists.However,the reasons and mechanisms of action inducing BP reduction are still not sufficiently clear.Proposed mechanisms of SGLT2 inhibitors involve the natriuretic effect,modification of the renin-angiotensin-aldosterone system,and/or the reduction in the sympathetic nervous system.GLP-1 receptor agonists have several mechanisms that are related to glycemic,weight,and BP control.Current data show that SGLT2 inhibitors have a stronger antihypertensive effect than GLP-1 receptor agonists,which is mainly related to their renal effect.Briefly,SGLT2 inhibitors increase the response to diuretics and decrease the meal-related antinatriuretic pressure by lowering post-prandial hyperglycemia and hyperinsulinemia and prevent proximal sodium reabsorption.SGLT2 inhibitors can be used as second-line therapy in patients with diabetes mellitus or heart disease and concomitant hypertension.This article aims to summarize current knowledge regarding the antihypertensive effect of SGLT2 inhibitors and GLP-1 receptor agonists. 展开更多
关键词 HYPERTENSION Sodium-glucose cotransporter 2 inhibitors glucagon-like peptide 1 receptor agonists Blood pressure
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基于胰升糖素样肽-1的治疗进展
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作者 詹宇红 《医学研究杂志》 2008年第8期116-118,共3页
关键词 胰升糖素样肽-1 peptide 治疗 分泌作用 持续静脉注射 glp-1 2型糖尿病 胰岛素
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Protection-Free Site-Directed Peptide or Protein S-Glycosylation and Its Application in the Glycosylation of Glucagon-like Peptide 1 被引量:2
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作者 Gefei Li Yuankun Dao +3 位作者 Juan Mo Suwei Dong Shin-ichiro Shoda Xin-Shan Ye 《CCS Chemistry》 CAS 2022年第6期1930-1937,共8页
The development of a facile cysteine-directed S-glycosylation strategy would facilitate the intensive investigation of the effect of glycosylation on protein translational modification.Herein,we introduce glycosyl Bun... The development of a facile cysteine-directed S-glycosylation strategy would facilitate the intensive investigation of the effect of glycosylation on protein translational modification.Herein,we introduce glycosyl Bunte salt as an efficient glycosyl donor for site-selective peptide/protein modification.The coupling reaction with cysteine thiols under alkaline buffer conditions proceeded chemoselectively,delivering homogeneous glycoconjugates and inorganic salt as the only byproduct.A series of sugar moieties,including monosaccharides and oligosaccharides,were successfully conjugated to the peptides and protein via the disulfide bond.Furthermore,this protocol was applied to the glycosylation of the glucagon-like peptide 1(GLP-1)variant,and its glycosylated effect on blood glucose control was also studied. 展开更多
关键词 site-selective S-glycosylation peptide/protein-modification glycosyl Bunte salt disulfide bond glp-1
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Oral peptide therapeutics for diabetes treatment: State-of-the-art and future perspectives 被引量:1
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作者 Bingwen Ding Zhu Zhu +3 位作者 Cong Guo Jiaxin Li Yong Gan Miaorong Yu 《Acta Pharmaceutica Sinica B》 SCIE CAS CSCD 2024年第5期2006-2025,共20页
Diabetes,characterized by hyperglycemia,is a major cause of death and disability worldwide.Peptides,such as insulin and glucagon-like peptide-1(GLP-1)analogs,have shown promise as treatments for diabetes due to their ... Diabetes,characterized by hyperglycemia,is a major cause of death and disability worldwide.Peptides,such as insulin and glucagon-like peptide-1(GLP-1)analogs,have shown promise as treatments for diabetes due to their ability to mimic or enhance insulin's actions in the body.Compared to subcutaneous injection,oral administration of anti-diabetic peptides is a preferred approach.However,biological barriers significantly reduce the efficacy of oral peptide therapeutics.Recent advancements in drug delivery systems and formulation techniques have greatly improved the oral delivery of peptide therapeutics and their efficacy in treating diabetes.This review will highlight(1)the benefits of oral anti-diabetic peptide therapeutics;(2)the biological barriers for oral peptide delivery,including pH and enzyme degradation,intestinal mucosa barrier,and biodistribution barrier;(3)the delivery platforms to overcome these biological barriers.Additionally,the review will discuss the prospects in this field.The information provided in this review will serve as a valuable guide for future developments in oral anti-diabetic peptide therapeutics. 展开更多
关键词 Oral peptides Diabetes Delivery platforms Insulin glucagon-like peptide-1 BIODISTRIBUTION Biological barriers Targeted delivery
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Effects of acupoint thread-embedding therapy on serum apelin and GLP-1 in type 2 diabetes mellitus patients with obesity due to dampness-heat encumbering spleen 被引量:9
19
作者 Xu Bing-guo Wang Hui +1 位作者 Wang Shu-lan Dai Li-juan 《Journal of Acupuncture and Tuina Science》 CSCD 2021年第2期123-128,共6页
Objective:To observe the effects of acupoint thread-embedding therapy on serum apelin and glucagon-like peptide-1(GLP-1)in type 2 diabetes mellitus patients with obesity due to dampness-heat encumbering spleen.Methods... Objective:To observe the effects of acupoint thread-embedding therapy on serum apelin and glucagon-like peptide-1(GLP-1)in type 2 diabetes mellitus patients with obesity due to dampness-heat encumbering spleen.Methods:Sixty-six patients were randomly divided into a control group and an observation group according to the random number table method,with 33 cases in each group.Patients in the control group were treated with exenatide and metformin,while patients in the observation group were treated with additional acupoint thread-embedding.After 12-week treatment,the obesity-related indicators,including body mass index(BMI),waist circumference and body fat rate,the glycometabolism indicators,including fasting blood glucose,2 h postprandial blood glucose and glycosylated hemoglobin,and the lipid metabolism indicators,including total cholesterol(TC),triglyceride(TG)and low-density lipoprotein cholesterol(LDL-C),as well as serum apelin and GLP-1 levels were observed in patients of the two groups.Results:After treatment,the BMI,waist circumference and body fat rate of patients in the two groups were all reduced(all P<0.05),and were lower in the observation group than in the control group(all P<0.05);the fasting blood glucose,2 h postprandial blood glucose and glycosylated hemoglobin levels of patients in both groups were all decreased(all P<0.05),and were significantly lower in the observation group than in the control group(all P<0.05);the TC level was decreased(P<0.05),while the TG and LDL-C levels did not change significantly in the control group(both P>0.05);the TC,TG and LDL-C levels were all significantly reduced in the observation group(all P<0.05),lower than those in the control group(all P<0.05);the serum apelin level was decreased(P<0.05)and the serum GLP-1 level was increased(P<0.05)in the observation group,statistically different from those in the control group(both P<0.05).Conclusion:Combined with the conventional medication,acupoint thread-embedding therapy can significantly improve the obesity-related indicators,glycometabolism and lipid metabolism in type 2 diabetes mellitus patients with obesity due to dampness-heat encumbering spleen.This may be achieved by regulating the serum apelin and GLP-1 levels. 展开更多
关键词 Embedding Therapy Embedding THREAD Acupoint Therapy OBESITY Diabetes Mellitus Type 2Apelin glucagon-like peptide 1
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Electroacupuncture for functional dyspepsia and the influence on serum Ghrelin, CGRP and GLP-1 levels 被引量:9
20
作者 Liming QIANG Yuan ]IANG 《World Journal of Acupuncture-Moxibustion》 CSCD 2018年第2期16-20,80,81,共7页
Objective: To observe the clinical efficacy of electroacupuncture for functional dyspepsia(FD), and explore the corresponding mechanism.Methods: Sixty-four FD patients were randomly divided into electroacupuncture... Objective: To observe the clinical efficacy of electroacupuncture for functional dyspepsia(FD), and explore the corresponding mechanism.Methods: Sixty-four FD patients were randomly divided into electroacupuncture group and western medicine group, with 32 cases in each group. In electroacupuncture group, electroacupuncture at Zusanli(足三里ST 36),Sanyinjiao(三阴交SP 6),Gongsun(公孙SP 4) and Neiguan(内关PC 6) was performed for once a day, and the needles were retained for 30 min. In western medicine group, oral administration of mosapride citrate dispersible tablets in a dosage of 5 mg/time was carried out for 3 times a day. Treatment was conducted for 30 consecutive days in both groups. The scores of Leeds dyspepsia questionnaire(LDQ) and functional digestive disorder quality of life(FDDQL) of patients in both groups were recorded before and after treatment. Serum Ghrelin, CGRP and GLP-1 levels of patients were tested before and after treatment respectively, and the clinical efficacy of patients in both groups was evaluated after treatment.Results: In western medicine group, LDQ score after treatment was lower than that before treatment(P 0.05), FDDQL score after treatment was higher than that before treatment, while the differences were not statistically significant(P0.05). LDQ score in electroacupuncture group after treatment was lower than that before treatment(P0.05), and also lower than that in western medicine group at the same time point(P 0.05). FDDQL score in electroacupuncture group after treatment was higher than that before treatment(P0.05), and also higher than that in western medicine group at the same time point(P0.05). In western medicine group, Ghrelin level after treatment was higher than that before treatment(P 0.05), CGRP level reduced, and the differences were not statistically significant(P 0.05). GLP-1 level after treatment was also higher than that before treatment(P0.05). In electroacupuncture group,Ghrelin level after treatment was higher than that before treatment, CGRP level reduced, and GLP-1 level after treatment was also higher than that before treatment(both P 0.05). According to the comparison of values of each index between electroacupuncture group and western medicine group after treatment,the differences were all statistically significant(all P 0.05). The total effective rate in electroacupuncture group was 90.63%(29/32) which was higher than that in western medicine group 68.75%(22/32), and the differences were statistically significant(P0.05).Conclusion: Electroacupuncture at ST 36, SP 6, SP 4 and PC 6 can effectively improve the clinical symptoms of FD patients, and the mechanism might be related with the increase of serum Ghrelin and GLP-1 levels and the decrease of serum CGRP level. 展开更多
关键词 Functional dyspepsia Electroacupuncture Ghrelin Calcitonin gene-related peptide (CGRP) glucagon-like peptide-1 (glp-1)
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