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GLP-1 AND adipocyte

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https://www.readbyqxmd.com/read/29772784/capsaicin-in-metabolic-syndrome
#1
REVIEW
Sunil K Panchal, Edward Bliss, Lindsay Brown
Capsaicin, the major active constituent of chilli, is an agonist on transient receptor potential vanilloid channel 1 (TRPV1). TRPV1 is present on many metabolically active tissues, making it a potentially relevant target for metabolic interventions. Insulin resistance and obesity, being the major components of metabolic syndrome, increase the risk for the development of cardiovascular disease, type 2 diabetes, and non-alcoholic fatty liver disease. In vitro and pre-clinical studies have established the effectiveness of low-dose dietary capsaicin in attenuating metabolic disorders...
May 17, 2018: Nutrients
https://www.readbyqxmd.com/read/29523188/azoramide-a-novel-regulator-favors-adipogenesis-against-osteogenesis-through-inhibiting-the-glp-1-receptor-pka-%C3%AE-catenin-pathway
#2
Banjun Ruan, Zheng Zhu, Zhao Yan, Wei Yang, Dongsheng Zhai, Li Wang, Zichen Ye, Huanyu Lu, An Xiang, Jingwei Liang, Yinghao Jiang, Chengming Xu, Zhenyu Wang, Ming Wei, Xiaoying Lei, Xiaorui Cao, Zifan Lu
BACKGROUND: The reciprocal fate decision of mesenchymal stem cells (MSCs) to either bone or adipocytes is determined by Wnt-related signaling and the glucagon-like peptide-1 receptor (GLP-1R). Azoramide, an ER stress alleviator, was reported to have an antidiabetic effect. In this study, we investigated the function of azoramide in regulating the lineage determination of MSCs for either adipogenic or osteogenic differentiation. METHODS: In this study, microcomputed tomography and histological analysis on bone morphogenetic protein (BMP)2-induced parietal periosteum bone formation assays, C3H10T1/2 and mouse bone marrow MSC-derived bone formation and adipogenesis assays, and specific staining for bone tissue and lipid droplets were used to evaluate the role of azoramide on the lineage determination of MSC differentiation...
March 9, 2018: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29412822/apelin-13-analogues-show-potent-in-vitro-and-in-vivo-insulinotropic-and-glucose-lowering-actions
#3
F P M O'Harte, V Parthsarathy, C Hogg, P R Flatt
Nine structurally modified apelin-13 analogues were assessed for their in vitro and acute in vivo antidiabetic potential. Stability was assessed in mouse plasma and insulinotropic efficacy tested in cultured pancreatic BRIN-BD11 cells and isolated mouse pancreatic islets. Intracellular Ca2+ and cAMP production in BRIN-BD11 cells was determined, as was glucose uptake in 3T3-L1 adipocytes. Acute antihyperglycemic effects of apelin analogues were assessed following i.p. glucose tolerance tests (ipGGT, 18 mmol/kg) in normal and diet-induced-obese (DIO) mice and on food intake in normal mice...
February 2018: Peptides
https://www.readbyqxmd.com/read/29344656/liraglutide-suppresses-proliferation-and-induces-adipogenic-differentiation-of-3t3-l1-cells-via-the-hippo-yap-signaling-pathway
#4
Yongmei Li, Jianying Du, Endong Zhu, Juanjuan Zhang, Jie Han, Wei Zhao, Bei Sun, Derun Tian
Liraglutide, as a glucagon-like peptide‑1 analogue, is used to treat type 2 diabetes mellitus and obesity. Previous findings have demonstrated the effects of liraglutide on adipogenesis; however, the underlying mechanism involved in this process remains to be elucidated. In the present study, to certify the effect of liraglutide on adipogenesis and explore the possible underlying mechanism involved in this process, preadipocyte 3T3‑L1 cells were cultured in adipocyte‑inducing medium and treated with liraglutide...
January 16, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29159483/obestatin-can-potentially-differentiate-wharton-s-jelly-mesenchymal-stem-cells-into-insulin-producing-cells
#5
Rana K El-Asfar, Mohamed M Kamal, Rania S Abd El-Razek, Ebtehal El-Demerdash, Hala O El-Mesallamy
In vitro-generation of β-cells from Wharton's jelly mesenchymal stem cells (WJ-MSCs) could provide a potential basis for diabetes mellitus cell therapy. However, the generation of functional insulin-producing cells (IPCs) from WJ-MSCs remains a challenge. Recently, obestatin, a gut hormone, was found to promote β-cell generation from pancreatic precursor cells. Accordingly, we hypothesize that obestatin can induce the differentiation of WJ-MSCs into IPCs. Therefore, the purpose of the current study is to examine the ability of obestatin to generate IPCs in comparison to well-known extrinsic factors that are commonly used in IPCs differentiation protocols from MSCs, namely exendin-4 and glucagon-like peptide-1 (GLP-1)...
November 20, 2017: Cell and Tissue Research
https://www.readbyqxmd.com/read/29094257/the-effects-of-exendin-4-on-bone-marrow-derived-mesenchymal-cells
#6
Paola Luciani, Benedetta Fibbi, Benedetta Mazzanti, Cristiana Deledda, Lara Ballerini, Alessandra Aldinucci, Susanna Benvenuti, Riccardo Saccardi, Alessandro Peri
PURPOSE: GLP-1 receptor agonists are antidiabetic drugs currently used in the therapy of type 2 diabetes. Despite several in vitro and in vivo animal studies suggesting a beneficial effect of GLP-1 analogues on bone, in humans their skeletal effects are not clear and clinical studies report conflicting results. METHODS: We differentiated human mesenchymal stromal cells (hMSC) toward the adipogenic and the osteoblastic lineages, analysing the effect of Exendin-4 (EXE) before, during and after specific differentiations...
November 1, 2017: Endocrine
https://www.readbyqxmd.com/read/29066599/il-6-type-cytokine-signaling-in-adipocytes-induces-intestinal-glp-1-secretion
#7
Stephan Wueest, Céline I Laesser, Marianne Böni-Schnetzler, Flurin Item, Fabrizio C Lucchini, Marcela Borsigova, Werner Müller, Marc Y Donath, Daniel Konrad
We recently showed that interleukin (IL)-6-type cytokine signaling in adipocytes induces free fatty acid release from visceral adipocytes, thereby promoting obesity-induced hepatic insulin resistance and steatosis. In addition, IL-6-type cytokines may increase the release of leptin from adipocytes and by those means induce glucagon-like peptide 1 (GLP-1) secretion. We thus hypothesized that IL-6-type cytokine signaling in adipocytes may regulate insulin secretion. To this end, mice with adipocyte-specific knockout of gp130, the signal transducer protein of IL-6, were fed a high-fat diet for 12 weeks...
January 2018: Diabetes
https://www.readbyqxmd.com/read/28822994/glucagon-like-peptide-1-receptor-agonist-stimulates-mitochondrial-bioenergetics-in-human-adipocytes
#8
Joanna Góralska, Agnieszka Śliwa, Anna Gruca, Urszula Raźny, Monika Chojnacka, Anna Polus, Bogdan Solnica, Małgorzata Malczewska-Malec
Glucagon-like peptide 1 receptor agonists (GLP-1RAs) are relatively new pharmacological agents used to normalize glucose level in type 2 diabetes. Recently, GLP-1RAs have been approved for the treatment of obesity to reduce body weight in non-diabetic patients. The extra-pancre-atic effects of GLP-1RAs, as well as their molecular mechanism of action, are still poorly understood. Thus this study was aimed to verify the hypothesis that the mechanism of action of the GLP-1RAs involves mitochondria and that GLP-1RAs administration can improve mitochondrial functions...
2017: Acta Biochimica Polonica
https://www.readbyqxmd.com/read/28708480/optimizing-diabetes-treatment-in-the-presence-of-obesity
#9
REVIEW
Mary Angelynne Esquivel, M Cecilia Lansang
Evidence of a neurophysiologic mechanism that involves hormones from adipocytes, pancreatic islet cells, and the gastrointestinal tract implicated in both obesity and diabetes has led to a search for drugs that not only either target obesity and diabetes or reduce hemoglobin A1c, but also have weight loss as a potential side effect. The authors review medications approved for the treatment of type 2 diabetes mellitus (including pramlintide, also approved for type 1 diabetes) that also have weight loss as a side effect...
July 2017: Cleveland Clinic Journal of Medicine
https://www.readbyqxmd.com/read/28668964/glp-1-glp-1r-signaling-in-regulation-of-adipocyte-differentiation-and-lipogenesis
#10
Jicui Chen, Huichen Zhao, Xiaoli Ma, Yuchao Zhang, Sumei Lu, Yangang Wang, Chen Zong, Dandan Qin, Yuanmei Wang, Yingfeng Yingfeng Yang, Xiangdong Wang, Yuantao Liu
BACKGROUND/AIMS: The aim of this study was to determine the direct role of liraglutide (LG) in adipogenesis and lipid metabolism. METHODS: Lipid accumulation was evaluated by oil red O staining, quantitative real-time PCR (qPCR) was performed to determine glucagon-like peptide 1 receptor (GLP-1R), fatty acid synthase (FASN) and adipose triglyceride lipase (ATGL) expression in 3T3-L1 preadipocytes, differentiated adipocytes and in adipose tissues from mice. The effects of LG on 3T3-L1 adipogenesis and lipid metabolism were analyzed with qPCR, Western Blotting, oil red O staining, immunohistochemistry (IHC) and immunofluorescence (IF)...
2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28555111/novel-glp-1-analog-supaglutide-reduces-hfd-induced-obesity-associated-with-increased-ucp-1-in-white-adipose-tissue-in-mice
#11
Yun Wan, Xi Bao, Jiabao Huang, Xiangyu Zhang, Wenjuan Liu, Qiaoli Cui, Dongdong Jiang, Zhihong Wang, Rui Liu, Qinghua Wang
GLP-1, an important incretin hormone plays an important role in the regulation of glucose homeostasis. However, the therapeutic use of native GLP-1 is limited due to its short half-life. We recently developed a novel GLP-1 mimetics (supaglutide) by genetically engineering recombinant fusion protein production techniques. We demonstrated that this formulation possessed long-lasting GLP-1 actions and was effective in glycemic control in both type 1 and type 2 diabetes rodent models. Here, we investigated the effects of supaglutide in regulating energy homeostasis in obese mice...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28523587/erratum-to-glucagon-like-peptide-1-receptor-agonists-glp-1ras-in-the-brain-adipocyte-axis
#12
Bruno Geloneze, José Carlos de Lima-Júnior, Lício A Velloso
No abstract text is available yet for this article.
May 18, 2017: Drugs
https://www.readbyqxmd.com/read/28507313/chronic-intrahypothalamic-rather-than-subcutaneous-liraglutide-treatment-reduces-body-weight-gain-and-stimulates-the-melanocortin-receptor-system
#13
K Kaineder, T Birngruber, G Rauter, B Obermüller, J Eichler, J Münzker, W Al-Zoughbi, S I Mautner, S S Torekov, B Hartmann, P Kotzbeck, T R Pieber
BACKGROUND: The GLP-1 receptor agonist liraglutide is marketed for obesity treatment where it induces body weight reduction possibly via the hypothalamus, which regulates energy homeostasis. In animal studies, acute liraglutide treatment triggers satiety, weight loss and activates thermogenesis in adipose tissue. However, the precise mechanisms how liraglutide affects in particular chronic weight loss are still under investigation. OBJECTIVES: We aimed to evaluate whether chronic hypothalamic or chronic subcutaneous administration of liraglutide induces sustained weight loss through altered adipose tissue function and to what extent hypothalamic neuronal appetite regulators are involved in the liraglutide-induced weight loss in healthy lean rats on a normal diet...
August 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28347868/teneligliptin-a-dipeptidyl-peptidase-4-inhibitor-attenuated-pro-inflammatory-phenotype-of-perivascular-adipose-tissue-and-inhibited-atherogenesis-in-normoglycemic-apolipoprotein-e-deficient-mice
#14
Hotimah Masdan Salim, Daiju Fukuda, Yasutomi Higashikuni, Kimie Tanaka, Yoichiro Hirata, Shusuke Yagi, Takeshi Soeki, Michio Shimabukuro, Masataka Sata
BACKGROUND: Dipeptidyl peptidase-4 (DPP-4) inhibitors have various cellular effects that are associated with vascular protection. Here, we examined whether teneligliptin alters the pro-inflammatory phenotype of perivascular adipose tissue (PVAT) and inhibits atherogenesis. METHODS AND RESULTS: Teneligliptin (60mg/kg/day) was administered orally to apolipoprotein-E-deficient (ApoE-/- ) mice for 20weeks. Teneligliptin significantly inhibited the development of atherosclerosis in the aortic arch compared with vehicle (P<0...
September 2017: Vascular Pharmacology
https://www.readbyqxmd.com/read/28166771/glycemic-insulinemic-and-incretin-responses-after-oral-trehalose-ingestion-in-healthy-subjects
#15
Chiyo Yoshizane, Akiko Mizote, Mika Yamada, Norie Arai, Shigeyuki Arai, Kazuhiko Maruta, Hitoshi Mitsuzumi, Toshio Ariyasu, Shimpei Ushio, Shigeharu Fukuda
BACKGROUND: Trehalose is hydrolyzed by a specific intestinal brush-border disaccharidase (trehalase) into two glucose molecules. In animal studies, trehalose has been shown to prevent adipocyte hypertrophy and mitigate insulin resistance in mice fed a high-fat diet. Recently, we found that trehalose improved glucose tolerance in human subjects. However, the underlying metabolic responses after trehalose ingestion in humans are not well understood. Therefore, we examined the glycemic, insulinemic and incretin responses after trehalose ingestion in healthy Japanese volunteers...
February 6, 2017: Nutrition Journal
https://www.readbyqxmd.com/read/28122026/exendin-4-upregulates-adiponectin-level-in-adipocytes-via-sirt1-foxo-1-signaling-pathway
#16
Anping Wang, Ting Li, Ping An, Wenhua Yan, Hua Zheng, Baoan Wang, Yiming Mu
Glucagon-like peptide-1 (GLP-1) receptor plays an essential role in regulating glucose metabolism. GLP-1 receptor agonists have been widely used for treating diabetes and other insulin resistance-related diseases. However, mechanisms underlying the anti-diabetic effects of GLP-1 receptor agonists remain largely unknown. In this study, we investigated the effects of GLP-1 agonist exendin-4 on the expression of adiponectin, an insulin sensitizing hormone. We found that exendin-4 increased the expression and secretion of adiponectin both in vitro and in vivo...
2017: PloS One
https://www.readbyqxmd.com/read/27704740/correlation-of-glypican-4-level-with-basal-active-glucagon-like-peptide-1-level-in-patients-with-type-2-diabetes-mellitus
#17
Sang Ah Lee, Gwanpyo Koh, Suk Ju Cho, So Yeon Yoo, Sang Ouk Chin
BACKGROUND: Previous studies have reported that glypican-4 (GPC4) regulates insulin signaling by interacting with insulin receptor and through adipocyte differentiation. However, GPC4 has not been studied with regard to its effects on clinical factors in patients with type 2 diabetes mellitus (T2DM). We aimed to identify factors associated with GPC4 level in T2DM. METHODS: Between January 2010 and December 2013, we selected 152 subjects with T2DM and collected serum and plasma into tubes pretreated with aprotinin and dipeptidyl peptidase-4 inhibitor to preserve active gastric inhibitory polypeptide (GIP) and glucagon-like peptide 1 (GLP-1)...
September 2016: Endocrinology and Metabolism
https://www.readbyqxmd.com/read/27504979/glucagon-like-peptide-1-promotes-adipocyte-differentiation-via-the-wnt4-mediated-sequestering-of-beta-catenin
#18
Rui Liu, Na Li, Yi Lin, Mei Wang, Yongde Peng, Keidren Lewi, Qinghua Wang
Glucagon-like peptide-1 (GLP-1) plays a role in the regulation of adipogenesis; however, the precise underlying molecular mechanism has not been fully defined. Wnt was recently identified as an important regulator of adipogenesis. This study aimed to investigate the involvement of the Wnt signaling pathway in the effects of GLP-1 on adipocyte differentiation. 3T3-L1 cells were induced to differentiate. The changes in the expression levels of adipogenic transcription factors and Wnts and the phosphorylation level and subcellular localization of β-catenin were quantified after GLP-1 treatment...
2016: PloS One
https://www.readbyqxmd.com/read/27385588/a-novel-allosteric-activator-of-free-fatty-acid-2-receptor-displays-unique-gi-functional-bias
#19
Daniele Bolognini, Catherine E Moss, Karolina Nilsson, Annika U Petersson, Iona Donnelly, Eugenia Sergeev, Gabriele M König, Evi Kostenis, Mariola Kurowska-Stolarska, Ashley Miller, Niek Dekker, Andrew B Tobin, Graeme Milligan
The short chain fatty acid receptor FFA2 is able to stimulate signaling via both Gi- and Gq/G11-promoted pathways. These pathways are believed to control distinct physiological end points but FFA2 receptor ligands appropriate to test this hypothesis have been lacking. Herein, we characterize AZ1729, a novel FFA2 regulator that acts as a direct allosteric agonist and as a positive allosteric modulator, increasing the activity of the endogenously produced short chain fatty acid propionate in Gi-mediated pathways, but not at those transduced by Gq/G11 Using AZ1729 in combination with direct inhibitors of Gi and Gq/G11 family G proteins demonstrated that although both arms contribute to propionate-mediated regulation of phospho-ERK1/2 MAP kinase signaling in FFA2-expressing 293 cells, the Gq/G11-mediated pathway is predominant...
September 2, 2016: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/27333994/changes-in-levels-of-biomarkers-associated-with-adipocyte-function-and-insulin-and-glucagon-kinetics-during-treatment-with-dapagliflozin-among-obese-type-2-diabetes-mellitus-patients
#20
Aki Okamoto, Hirohide Yokokawa, Hironobu Sanada, Toshio Naito
OBJECTIVES: This study aimed to investigate changes in levels of biomarkers associated with adipocyte function and insulin and glucagon kinetics after a meal tolerance test (MTT) during treatment with dapagliflozin among obese type 2 diabetes mellitus (T2DM) patients. METHODS: T2DM patients with hemoglobin A1c (HbA1c) levels >6.5 % and body mass index (BMI) >25 kg/m2 were treated with dapagliflozin 5 mg/day for at least 12 weeks. HbA1c, body weight, ketone bodies, adiponectin, plasminogen activator inhibitor-1 (PAI-1), and C-reactive protein (CRP) were measured before and after treatment with dapagliflozin...
September 2016: Drugs in R&D
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