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https://www.readbyqxmd.com/read/27928844/glucagon-like-peptide-1-receptor-expression-on-human-eosinophils-and-its-regulation-of-eosinophil-activation
#1
Patrick D Mitchell, Brittany M Salter, John Paul Oliveria, Amani El-Gammal, Damian Tworek, Steve G Smith, Roma Sehmi, Gail M Gauvreau, Marcus Butler, Paul M O'Byrne
BACKGROUND: Glucagon Like Peptide-1 (GLP-1) and its receptor are part of the incretin family of hormones the regulate glucose metabolism. GLP-1 also has immune modulatory roles. OBJECTIVES: To measure the expression of the GLP-1 receptor (GLP-1R) on eosinophils and neutrophils in normal and asthmatic subjects and evaluate effects of a GLP-1 analog on eosinophil function. METHODS: Peripheral blood samples were taken from 10 normal and 10 allergic asthmatic subjects...
December 8, 2016: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/27927266/enzymatically-modified-starch-up-regulates-expression-of-incretins-and-sodium-coupled-monocarboxylate-transporter-in-jejunum-of-growing-pigs
#2
B U Metzler-Zebeli, R Ertl, D Grüll, T Molnar, Q Zebeli
Dietary effects on the host are mediated via modulation of the intestinal mucosal responses. The present study investigated the effect of an enzymatically modified starch (EMS) product on the mucosal expression of genes related to starch digestion, sugar and short-chain fatty acid (SCFA) absorption and incretins in the jejunum and cecum in growing pigs. Moreover, the impact of the EMS on hepatic expression of genes related to glucose and lipid metabolism, and postprandial serum metabolites were assessed. Barrows (n=12/diet; initial BW 29 kg) were individually fed three times daily with free access to a diet containing either EMS or waxy corn starch as control (CON) for 10 days...
December 8, 2016: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/27913104/d-ala2-gip-glu-pal-is-neuroprotective-in-a-chronic-parkinson-s-disease-mouse-model-and-increases-bndf-expression-while-reducing-neuroinflammation-and-lipid-peroxidation
#3
Yanwei Li, WeiZhen Liu, Lin Li, Christian Hölscher
Type 2 diabetes mellitus (T2DM) is a risk factor for Parkinson's disease (PD). Therefore, treatment to improve insulin resistance in T2DM may be useful for PD patients. Glucose dependent insulinotropic polypeptide (GIP) is a member of the incretin hormone family that can promote insulin release and improve insulin resistance. Several GIP analogues have been developed as potential treatments for T2DM. We had shown previously that D-Ala2-GIP-glu-PAL, a novel long-acting GIP analogue, can play a neuroprotective role in the PD mouse model induced by acute MPTP injection...
November 29, 2016: European Journal of Pharmacology
https://www.readbyqxmd.com/read/27912784/liraglutide-improves-metabolic-parameters-and-carotid-intima-media-thickness-in-diabetic-patients-with-the-metabolic-syndrome-an-18-month-prospective-study
#4
Manfredi Rizzo, Ali A Rizvi, Angelo Maria Patti, Dragana Nikolic, Rosaria Vincenza Giglio, Giuseppa Castellino, Giovanni Li Volti, Massimiliano Caprio, Giuseppe Montalto, Vincenzo Provenzano, Stefano Genovese, Antonio Ceriello
BACKGROUND: Liraglutide, a GLP-1 analogue, exerts several beneficial non-glycemic effects in patients with type-2 diabetes (T2DM), such as those on body weight, blood pressure, plasma lipids and inflammation markers. However, the effects of liraglutide on cardiovascular (CV) risk markers in subjects with the metabolic syndrome (MetS) are still largely unknown. We herein explored its effects on various cardio-metabolic risk markers of the MetS in subjects with T2DM. METHODS: We performed an 18-month prospective, real-world study...
December 3, 2016: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/27899813/the-pro-fibrotic-role-of-dipeptidyl-peptidase-4-in-carbon-tetrachloride-induced-experimental-liver-injury
#5
Xin M Wang, Lauren E Holz, Sumaiya Chowdhury, Shaun P Cordoba, Kathryn A Evans, Margaret G Gall, Ana Júlia Vieira de Ribeiro, Yuan Zhou Zheng, Miriam T Levy, Denise M T Yu, Tsun-Wen Yao, Natasa Polak, Christopher J Jolly, Patrick Bertolino, Geoffrey W McCaughan, Mark D Gorrell
Liver fibrosis is a progressive pathological process involving inflammation and extracellular matrix deposition. Dipeptidyl peptidase 4 (DPP4), also known as CD26, is a cell surface glycoprotein and serine protease. DPP4 binds to fibronectin, can inactivate specific chemokines, incretin hormone and neuropeptides, and influences cell adhesion and migration. Such properties suggest a pro-fibrotic role for this peptidase but this hypothesis needs in vivo examination. Experimental liver injury was induced with carbon tetrachloride (CCl4) in DPP4 gene knockout (gko) mice...
November 30, 2016: Immunology and Cell Biology
https://www.readbyqxmd.com/read/27898522/context-dependent-effects-of-dipeptidyl-peptidase-4-inhibitors
#6
Edwin K Jackson
PURPOSE OF REVIEW: The antidiabetic mechanism of dipeptidyl peptidase 4 (DPP4) inhibitors is attributed to attenuation of incretin metabolism. Because DPP4 has at least 45 substrates, context-dependent off-target effects of DPP4 inhibitors are likely. Here, we consider the clinical ramifications of the context-dependent effects of DPP4 inhibitors. RECENT FINDINGS: Although incretins protect organs from diabetic injury, nonincretin DPP4 substrates also accumulate when DPP4 is inhibited...
November 24, 2016: Current Opinion in Nephrology and Hypertension
https://www.readbyqxmd.com/read/27895384/exendin-4-induces-extracellular-superoxide-dismutase-through-histone-h3-acetylation-in-human-retinal-endothelial-cells
#7
Hiroyuki Yasuda, Atsuko Ohashi, Shohei Nishida, Tetsuro Kamiya, Tetsuya Suwa, Hirokazu Hara, Jun Takeda, Yoshinori Itoh, Tetsuo Adachi
Extracellular-superoxide dismutase (genetic name SOD3) is a secreted anti-oxidative enzyme, and its presence in vascular walls may play an important role in protecting the vascular system against oxidative stress. Oxidative stress has been implicated in the pathogenesis of diabetic retinopathy; therefore, increases in extracellular-superoxide dismutase have been suggested to inhibit the progression of diabetic retinopathy. Incretin-based drugs such as glucagon-like peptide-1 receptor agonists are used in the treatment of type 2 diabetes...
November 2016: Journal of Clinical Biochemistry and Nutrition
https://www.readbyqxmd.com/read/27894746/roux-en-y-gastric-bypass-versus-calorie-restriction-support-for-surgery-per-se-as-the-direct-contributor-to-altered-responses-of-insulin-and-incretins-to-a-mixed-meal
#8
Johan Berggren, Andreas Lindqvist, Jan Hedenbro, Leif Groop, Nils Wierup
OBJECTIVE: To study the immediate effects of Roux-en-Y gastric bypass (RYGB) on glucose homeostasis, insulin, and incretin responses to mixed-meal tests compared with the effects of calorie restriction (CR). SETTING: University-affiliated bariatric surgery clinic. BACKGROUND: RYGB induces remission of type 2 diabetes (T2D) long before significant weight loss occurs. The time course and underlying mechanisms of this remission remain enigmatic...
September 28, 2016: Surgery for Obesity and related Diseases: Official Journal of the American Society for Bariatric Surgery
https://www.readbyqxmd.com/read/27887857/a-potential-contribution-of-dipeptidyl-peptidase-4-by-the-mediation-of-monocyte-differentiation-in-the-development-and-progression-of-abdominal-aortic-aneurysms
#9
Hsin-Ying Lu, Chun-Yao Huang, Chun-Ming Shih, Yi-Wen Lin, Chein-Sung Tsai, Feng-Yen Lin, Chun-Che Shih
OBJECTIVE: Abdominal aortic aneurysms (AAAs) are characterized by the destruction of elastin and collagen in the media and adventitia. Dipeptidyl peptidase-4 (DPP-4, an adipokine known as CD26) influences cell signaling, cell-matrix interactions, and the regulation of the functional activity of incretins in metabolic and inflammatory disorders. Although the role of DPP-4 in AAA evolution has been demonstrated, the underlying mechanisms of DPP-4-regulated AAA development remains unknown...
November 22, 2016: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/27883260/the-use-of-incretin-agents-and-risk-of-acute-and-chronic-pancreatitis-a-population-based-cohort-study
#10
Lotte M Knapen, Roy G P J de Jong, Johanna H M Driessen, Yolande C Keulemans, Nielka P van Erp, Marie L De Bruin, Hubert G M Leufkens, Sander Croes, Frank de Vries
BACKGROUND: Incretin-based therapies (Dipeptidyl Peptidase 4 inhibitors and Glucagon-Like Peptide-1 Receptor Agonists) are effective new agents for the treatment of Type 2 Diabetes Mellitus (T2DM). While incretin-based therapies have been associated with pancreatitis, evidence is conflicting for acute pancreatitis and lacks for chronic pancreatitis. OBJECTIVE: To determine the association between the use of incretin agents and the risk of any, acute and chronic pancreatitis...
November 24, 2016: Diabetes, Obesity & Metabolism
https://www.readbyqxmd.com/read/27882816/long-term-studies-of-treatments-for-type-2-diabetes
#11
A Enrique Caballero
There is a relative lack of long-term data for individual glucose-lowering therapies for the treatment of type 2 diabetes mellitus. A systematic search of published literature reporting data of approximately ≥3 years of follow-up from randomized controlled trials and their extensions was conducted. Trials to evaluate the efficacy and/or safety of glucose-lowering drugs currently approved for the treatment of adults with type 2 diabetes were included. Search results included long-term published data for traditional oral glucose-lowering drugs, insulin, α-glucosidase inhibitors, and incretin-based therapies...
November 24, 2016: Postgraduate Medicine
https://www.readbyqxmd.com/read/27882107/effects-of-sitagliptin-as-initial-therapy-in-newly-diagnosed-elderly-type-2-diabetics-a-randomized-controlled-study
#12
Xiaoyan Xiao, Xiaopei Cui, Jianbo Zhang, Zhenxia Han, Yu Xiao, Nan Chen, Baoying Li, Mei Cheng, Haiqing Gao, Kuanxiao Tang
The objective of this study was to investigate the characteristics of blood glycemic excursion, incretins and pancreatic hormone secretion in elderly people with newly diagnosed type 2 diabetes mellitus (T2DM) and to study the effects of sitagliptin on glycemic excursion in these subjects. A total of 129 newly diagnosed T2DM patients were enrolled in the study from March 2012 to August 2013. Clinical data, serum incretin, pancreatic hormone and continuous glucose monitoring data were collected. Among these subjects, elderly patients (NEDM) randomly received metformin combined with sitagliptin phosphate or glimepiride for 24 weeks...
November 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/27881129/impact-of-dipeptidyl-peptidase-4-inhibitors-on-serum-adiponectin-a-meta-analysis
#13
Xin Liu, Peng Men, Yuhui Wang, Suodi Zhai, George Liu
BACKGROUND: Adiponectin, an adipose-specific protein, is negatively correlated with pro-atherogenic low-density lipoprotein cholesterol (LDL-C) and other cardiovascular risk factors such as insulin resistance. Therefore, low levels of adiponectin are associated with a higher risk for diabetes and cardiovascular disease. Dipeptidyl peptidase-4 inhibitors (DPP4i) have been used for the treatment of type 2 diabetes mellitus (T2DM) as reversible inhibitors through interacting with DPP4 substrate and increase serum incretins such as glucagon-like peptide-1 (GLP-1)...
November 23, 2016: Lipids in Health and Disease
https://www.readbyqxmd.com/read/27867903/incretin-learning-and-excellence-academy-for-diabetes-ilead
#14
Sarita Bajaj, Subhankar Chowdhury, Ashok Kumar Das, Sanjay Kalra, Rakesh Kumar Sahay
No abstract text is available yet for this article.
November 2016: Indian Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/27866064/incretin-based-therapy-for-type-2-diabetes-a-real-class-effect
#15
Gianluigi Savarese, Lars H Lund, Giuseppe M C Rosano
No abstract text is available yet for this article.
November 9, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27865809/duodenal-jejunal-bypass-attenuates-progressive-failure-of-pancreatic-islets-in-streptozotocin-induced-diabetic-rats
#16
Tingfeng Wang, Peng Zhang, Xiong Zhang, Ting Cao, Chengzhu Zheng, Bo Yu
BACKGROUND: Preservation of pancreatic beta cell function has been increasingly appealing in the treatment of type 2 diabetes. Evidence is still limited on how bariatric surgery affects pancreatic beta cell apoptosis. SETTING: University medical center. OBJECTIVE: The study aimed to investigate the effect of a major component of Roux-en-Y gastric bypass, duodenal-jejunal bypass, on protecting pancreatic beta cells from progressive loss. METHODS: Forty-five normal Sprague-Dawley rats were randomly assigned into 3 groups: duodenal-jejunal bypass (DJB) group (n = 16) and sham (S) group (n = 17), based upon the procedure received, and a control (C) group (n = 12) without any procedure performed, to eliminate potential traumatic effects from surgery...
August 31, 2016: Surgery for Obesity and related Diseases: Official Journal of the American Society for Bariatric Surgery
https://www.readbyqxmd.com/read/27863704/cardiovascular-effects-of-glucose-lowering-therapies-for-type-2-diabetes-new-drugs-in-perspective
#17
REVIEW
Peter L Thompson, Timothy M E Davis
PURPOSE: The purpose of this study was to review the results of clinical trials assessing the cardiovascular effects of drugs for type 2 diabetes and the cardiovascular effects of newer available drugs. METHODS: We performed a detailed search of PubMed-listed publications, reports from international meetings, and ongoing studies from clinical trials.gov. FINDINGS: Currently available drugs have neutral or, in some cases, negative effects on cardiovascular outcomes...
November 15, 2016: Clinical Therapeutics
https://www.readbyqxmd.com/read/27858848/a-genetic-variant-in-glp1r-is-associated-with-response-to-dpp-4-inhibitors-in-patients-with-type-2-diabetes
#18
Eugene Han, Hye Sun Park, Obin Kwon, Eun Yeong Choe, Hye Jin Wang, Yong-Ho Lee, Sang-Hak Lee, Chul Hoon Kim, Lee-Kyung Kim, Soo Heon Kwak, Kyong Soo Park, Chul Sik Kim, Eun Seok Kang
Incretin hormone-based therapy in type 2 diabetes has been widely used, and dipepdityl peptidase-4 (DPP-4) inhibitors, which prevent incretin degradation, have become popular oral hypoglycemic agents. The efficacy of DPP-4 inhibitors varies from individuals, and factors determining responses to DPP-4 inhibitors have not been fully established. We aimed to investigate whether genetic variations in glucagon-like peptide (GLP-1) receptor are associated with responses to DPP-4 inhibitors in patients with type 2 diabetes...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27853058/pancreatic-safety-in-japanese-patients-with-type-2-diabetes-treated-with-once-weekly-dulaglutide-0-75-mg-up-to-52-weeks-in-phase-3-clinical-trials
#19
Masanori Emoto, Tomonori Oura, Akiko Matsui, Hirotaka Kazama, Noriyuki Iwamoto
The effects of incretin therapies on pancreatic safety are currently being evaluated. In 3 phase 3 clinical studies of once weekly dulaglutide 0.75 mg (dulaglutide) in Japanese patients with type 2 diabetes (T2D), symptoms suggestive of acute pancreatitis as well as pancreatic enzymes were assessed and the risk of acute pancreatitis was evaluated. Patients who met any of the predefined criteria (clinical signs/symptoms of acute pancreatitis, confirmed amylase or lipase level ≥3 times the upper limit of normal [ULN], abdominal imaging of the pancreas) were adjudicated for acute pancreatitis by a blinded external committee...
November 15, 2016: Endocrine Journal
https://www.readbyqxmd.com/read/27845037/novel-glp-1r-gipr-co-agonist-twincretin-is-neuroprotective-in-cell-and-rodent-models-of-mild-traumatic-brain-injury
#20
Ian A Tamargo, Miaad Bader, Yazhou Li, Seong-Jin Yu, Yun Wang, Konrad Talbot, Richard D DiMarchi, Chaim G Pick, Nigel H Greig
Several single incretin receptor agonists that are approved for the treatment of type 2 diabetes mellitus (T2DM) have been shown to be neuroprotective in cell and animal models of neurodegeneration. Recently, a synthetic dual incretin receptor agonist, nicknamed "twincretin," was shown to improve upon the metabolic benefits of single receptor agonists in mouse and monkey models of T2DM. In the current study, the neuroprotective effects of twincretin are probed in cell and mouse models of mild traumatic brain injury (mTBI), a prevalent cause of neurodegeneration in toddlers, teenagers and the elderly...
November 11, 2016: Experimental Neurology
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