keyword
MENU ▼
Read by QxMD icon Read
search

fatty acids and insulin-secreting cells

keyword
https://www.readbyqxmd.com/read/28523459/plasma-vascular-endothelial-growth-factor-b-levels-are-increased-in-patients-with-newly-diagnosed-type-2-diabetes-mellitus-and-associated-with-the-first-phase-of-glucose-stimulated-insulin-secretion-function-of-%C3%AE-cell
#1
J Wu, H Wei, H Qu, Z Feng, J Long, Q Ge, H Deng
PURPOSE: To detect plasma vascular endothelial growth factor B (VEGF-B) in individuals with different glucose tolerance and investigate the relationship between plasma VEGF-B levels and the first phase of glucose-stimulated insulin secretion. METHODS: A cross-sectional study was conducted involving 45 patients with newly diagnosed type 2 diabetes mellitus (T2DM), 37 patients with impaired glucose regulation (IGR), and 39 Normal glucose tolerance (NGT) subjects, all of whom underwent intravenous glucose tolerance test...
May 18, 2017: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/28504618/butyrate-reduces-high-fat-diet-induced-metabolic-alterations-hepatic-steatosis-and-pancreatic-beta-cell-and-intestinal-barrier-dysfunctions-in-prediabetic-mice
#2
V A Matheus, Lcs Monteiro, R B Oliveira, D A Maschio, C B Collares-Buzato
In this study, we investigated the effect of diet supplementation with sodium butyrate (5% w/w), a short-chain fatty acid produced by the intestinal microbiota, on metabolic parameters, body adiposity, hepatic and pancreatic lipid accumulation, beta cell function/mass as well as on the structure and function of the tight junction-mediated intestinal epithelial barrier in both normal and obese/prediabetic C57 mice fed a regular (control) or high-fat diet for 60 days, respectively. Butyrate treatment significantly inhibited all the high-fat-induced metabolic dysfunctions evaluated, i...
January 1, 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28501410/effects-of-dietary-energy-allowance-and-decline-in-dry-matter-intake-during-the-dry-period-on-responses-to-glucose-and-insulin-in-transition-dairy-cows
#3
S Salin, A Vanhatalo, K Elo, J Taponen, R C Boston, T Kokkonen
We assessed whether high energy intake during the early dry period [144% of metabolizable energy (ME) requirements/d] followed by a gradual restriction of energy intake in the close-up dry period (119% of ME/d; HEI) impaired whole-body insulin sensitivity compared with a controlled energy intake (100% of ME/d; CEI) throughout the 6-wk dry period. Multiparous Ayrshire dairy cows (n = 16) were blocked by body weight, body condition score, and expected date of parturition and were used in a randomized complete block design until 10 d after parturition...
May 10, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28493909/hnf1%C3%AE-defect-influences-post-prandial-lipid-regulation
#4
Matthieu St-Jean, François Boudreau, André C Carpentier, Marie-France Hivert
PURPOSE: Hepatocyte nuclear factor 1 alpha (HNF1α) defects cause Mature Onset Diabetes of the Young type 3 (MODY3), characterized by defects in beta-cell insulin secretion. However, HNF1α is involved in many other metabolic pathways with relevance for monogenic or polygenic type 2 diabetes. We aimed to investigate gut hormones, lipids, and insulin regulation in response to a meal test in HNF1α defect carriers (MODY3) compared to non-diabetic subjects (controls) and type 2 diabetes (T2D)...
2017: PloS One
https://www.readbyqxmd.com/read/28481223/ca2-channel-clustering-with-insulin-containing-granules-is-disturbed-in-type-2-diabetes
#5
Nikhil R Gandasi, Peng Yin, Michela Riz, Margarita V Chibalina, Giuliana Cortese, Per-Eric Lund, Victor Matveev, Patrik Rorsman, Arthur Sherman, Morten G Pedersen, Sebastian Barg
Loss of first-phase insulin secretion is an early sign of developing type 2 diabetes (T2D). Ca2+ entry through voltage-gated L-type Ca2+ channels triggers exocytosis of insulin-containing granules in pancreatic β cells and is required for the postprandial spike in insulin secretion. Using high-resolution microscopy, we have identified a subset of docked insulin granules in human β cells and rat-derived clonal insulin 1 (INS1) cells for which localized Ca2+ influx triggers exocytosis with high probability and minimal latency...
May 8, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28448538/combined-lipidomic-and-proteomic-analysis-of-isolated-human-islets-exposed-to-palmitate-reveals-time-dependent-changes-in-insulin-secretion-and-lipid-metabolism
#6
Kirsten Roomp, Hjalti Kristinsson, Domitille Schvartz, Kumari Ubhayasekera, Ernest Sargsyan, Levon Manukyan, Azazul Chowdhury, Hannes Manell, Venkata Satagopam, Karlfried Groebe, Reinhard Schneider, Jonas Bergquist, Jean-Charles Sanchez, Peter Bergsten
Studies on the pathophysiology of type 2 diabetes mellitus (T2DM) have linked the accumulation of lipid metabolites to the development of beta-cell dysfunction and impaired insulin secretion. In most in vitro models of T2DM, rodent islets or beta-cell lines are used and typically focus is on specific cellular pathways or organs. Our aim was to, firstly, develop a combined lipidomics and proteomics approach for lipotoxicity in isolated human islets and, secondly, investigate if the approach could delineate novel and/ or confirm reported mechanisms of lipotoxicity...
2017: PloS One
https://www.readbyqxmd.com/read/28431377/metabolic-regulation-and-the-anti-obesity-perspectives-of-human-brown-fat
#7
REVIEW
Camilla Scheele, Søren Nielsen
Activation of brown adipose tissue (BAT) in adult humans increase glucose and fatty acid clearance as well as resting metabolic rate, whereas a prolonged elevation of BAT activity improves insulin sensitivity. However, substantial reductions in body weight following BAT activation has not yet been shown in humans. This observation raise the possibility for feedback mechanisms in adult humans in terms of a brown fat-brain crosstalk, possibly mediated by batokines, factors produced by and secreted from brown fat...
April 11, 2017: Redox Biology
https://www.readbyqxmd.com/read/28431319/response-of-plasma-glucagon-like-peptide-2-to-feeding-pattern-and-intraruminal-administration-of-volatile-fatty-acids-in-sheep
#8
M Elsabagh, Y Inabu, T Obitsu, T Sugino
Glucagon-like peptide-2 (GLP-2), a gut peptide secreted by enteroendocrine L cells, has recently been identified as a key regulator of intestinal growth and absorptive function in ruminants. However, reports on GLP-2 secretion are few, and more information regarding its secretion dynamics is needed. In this study, two experiments were conducted to elucidate the daily rhythm of GLP-2 secretion in response to feeding regimen and to investigate the effect of volatile fatty acids (VFA) on GLP-2 release in sheep...
March 11, 2017: Domestic Animal Endocrinology
https://www.readbyqxmd.com/read/28377873/molecular-phenotyping-of-multiple-mouse-strains-under-metabolic-challenge-uncovers-a-role-for-elovl2-in-glucose-induced-insulin-secretion
#9
Céline Cruciani-Guglielmacci, Lara Bellini, Jessica Denom, Masaya Oshima, Neïké Fernandez, Priscilla Normandie-Levi, Xavier P Berney, Nadim Kassis, Claude Rouch, Julien Dairou, Tracy Gorman, David M Smith, Anna Marley, Robin Liechti, Dmitry Kuznetsov, Leonore Wigger, Frédéric Burdet, Anne-Laure Lefèvre, Isabelle Wehrle, Ingo Uphues, Tobias Hildebrandt, Werner Rust, Catherine Bernard, Alain Ktorza, Guy A Rutter, Raphael Scharfmann, Ioannis Xenarios, Hervé Le Stunff, Bernard Thorens, Christophe Magnan, Mark Ibberson
OBJECTIVE: In type 2 diabetes (T2D), pancreatic β cells become progressively dysfunctional, leading to a decline in insulin secretion over time. In this study, we aimed to identify key genes involved in pancreatic beta cell dysfunction by analyzing multiple mouse strains in parallel under metabolic stress. METHODS: Male mice from six commonly used non-diabetic mouse strains were fed a high fat or regular chow diet for three months. Pancreatic islets were extracted and phenotypic measurements were recorded at 2 days, 10 days, 30 days, and 90 days to assess diabetes progression...
April 2017: Molecular Metabolism
https://www.readbyqxmd.com/read/28352665/insulin-s-direct-hepatic-effect-explains-the-inhibition-of-glucose-production-caused-by-insulin-secretion
#10
Dale S Edgerton, Guillaume Kraft, Marta Smith, Ben Farmer, Phillip E Williams, Katie C Coate, Richard L Printz, Richard M O'Brien, Alan D Cherrington
Insulin can inhibit hepatic glucose production (HGP) by acting directly on the liver as well as indirectly through effects on adipose tissue, pancreas, and brain. While insulin's indirect effects are indisputable, their physiologic role in the suppression of HGP seen in response to increased insulin secretion is not clear. Likewise, the mechanisms by which insulin suppresses lipolysis and pancreatic α cell secretion under physiologic circumstances are also debated. In this study, insulin was infused into the hepatic portal vein to mimic increased insulin secretion, and insulin's indirect liver effects were blocked either individually or collectively...
March 23, 2017: JCI Insight
https://www.readbyqxmd.com/read/28338397/clove-and-its-active-compound-attenuate-free-fatty-acid-mediated-insulin-resistance-in-skeletal-muscle-cells-and-in-mice
#11
Safina Ghaffar, Shabbir Khan Afridi, Meha Fatima Aftab, Munazza Murtaza, Rahman M Hafizur, Sara Sara, Sabira Begum, Rizwana Sanaullah Waraich
Several reports indicate anti-hyperglycemic effects of Syzygium aromaticum. In the present study, we report for the first time that clove extract (SAM) and its compound nigricin (NGC) decreases free fatty acid-mediated insulin resistance in mouse myoblasts. In addition, NGC was able to diminish insulin resistance in a diabetic mouse model. We observed that SAM and its compound NGC exhibited significant antioxidant activity in murine skeletal muscle cells. They also modulated stress signaling by reducing p38 MAP kinase phosphorylation...
April 2017: Journal of Medicinal Food
https://www.readbyqxmd.com/read/28303004/serum-fabp5-concentration-is-a-potential-biomarker-for-residual-risk-of-atherosclerosis-in-relation-to-cholesterol-efflux-from-macrophages
#12
Masato Furuhashi, Masatsune Ogura, Megumi Matsumoto, Satoshi Yuda, Atsuko Muranaka, Mina Kawamukai, Akina Omori, Marenao Tanaka, Norihito Moniwa, Hirofumi Ohnishi, Shigeyuki Saitoh, Mariko Harada-Shiba, Kazuaki Shimamoto, Tetsuji Miura
Cholesterol efflux capacity (CEC) from macrophages, the first step in the reverse cholesterol transport pathway, is inversely associated with residual risk for atherosclerotic cardiovascular disease. Fatty acid-binding protein 4 (FABP4) and FABP5 are expressed in both adipocytes and macrophages and play significant roles in the development of insulin resistance and atherosclerosis. Both FABP4 and FABP5 are secreted from cells, and their circulating levels are associated with insulin resistance and atherosclerosis...
March 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28277660/discovery-of-potent-and-orally-bioavailable-gpr40-full-agonists-bearing-thiophen-2-ylpropanoic-acid-scaffold
#13
He Li, Qi Huang, Cheng Chen, Bin Xu, He-Yao Wang, Ya-Qiu Long
The free fatty acid receptor GPR40 is predominantly expressed in pancreatic β-cells and enhances insulin secretion in a glucose dependent manner. Therefore, GPR40 agonists are possible novel insulin secretagogues with reduced or no risk of hypoglycemia for the treatment of type 2 diabetes mellitus (T2DM). Chemically and structurally diverse GPR40 agonists with high safety are pursued for the clinical development of GPR40-based pharmacotherapeutics. Herein we report our design and discovery of a new chemotype of GPR40 agonists free of the typical phenylpropanoic acid scaffold...
April 13, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28240264/overexpressing-the-novel-autocrine-endocrine-adipokine-wisp2-induces-hyperplasia-of-the-heart-white-and-brown-adipose-tissues-and-prevents-insulin-resistance
#14
John R Grünberg, Jenny M Hoffmann, Shahram Hedjazifar, Annika Nerstedt, Lachmi Jenndahl, Johannes Elvin, John Castellot, Lan Wei, Sofia Movérare-Skrtic, Claes Ohlsson, Louise Mannerås Holm, Fredrik Bäckhed, Ismail Syed, Fatima Bosch, Alan Saghatelian, Barbara B Kahn, Ann Hammarstedt, Ulf Smith
WISP2 is a novel adipokine, most highly expressed in the adipose tissue and primarily in undifferentiated mesenchymal cells. As a secreted protein, it is an autocrine/paracrine activator of canonical WNT signaling and, as an intracellular protein, it helps to maintain precursor cells undifferentiated. To examine effects of increased WISP2 in vivo, we generated an aP2-WISP2 transgenic (Tg) mouse. These mice had increased serum levels of WISP2, increased lean body mass and whole body energy expenditure, hyperplastic brown/white adipose tissues and larger hyperplastic hearts...
February 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28236846/the-prevention-of-benign-prostatic-hyperplasia-bph
#15
W G Roper
Barry Marshall and Robin Warren were the first to show that the chronic diseases (gastric ulcer and chronic gastritis) were caused by an infection (Helicobacter pylori). The chronic disease benign prostatic hyperplasia belongs to the same ilk, except that the infection process is much more subtle and complex. The enzyme Phospholipase D (PLD) which is attached to the outer membrane of Escherichia coli (E. coli) has now been almost completely proven to be the basic cause of BPH. The evidence for this process is now extremely strong and compelling...
March 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/28196858/the-2016-walter-b-cannon-lecture-deconstructing-metabolic-inflammation-using-cellular-systems
#16
Kenny L Chan, Parastoo Boroumand, Marciane Milanski, Nicolas J Pillon, Philip J Bilan, Amira Klip
Over the past years we have embarked in a systematic analysis of the effect of obesity or fatty acids on circulating monocytes, microvascular endothelial cells, macrophages and skeletal muscle cells. Using cell culture strategies, we have deconstructed complex physiological systems, then reconstructed 'partial equations' to better understand cell-to-cell communication. Through these approaches we identified that in high saturated fat environments, cell-autonomous pro-inflammatory pathways are activated in monocytes and endothelial cells, promoting monocyte adhesion and transmigration...
February 14, 2017: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28193492/characterization-of-acyl-coa-synthetase-isoforms-in-pancreatic-beta-cells-gene-silencing-shows-participation-of-acsl3-and-acsl4-in-insulin-secretion
#17
Israr-Ul H Ansari, Melissa J Longacre, Scott W Stoker, Mindy A Kendrick, Lucas M O'Neill, Laura J Zitur, Luis A Fernandez, James M Ntambi, Michael J MacDonald
Long-chain acyl-CoA synthetases (ACSLs) convert fatty acids to fatty acyl-CoAs to regulate various physiologic processes. We characterized the ACSL isoforms in a cell line of homogeneous rat beta cells (INS-1 832/13 cells) and human pancreatic islets. ACSL4 and ACSL3 proteins were present in the beta cells and human and rat pancreatic islets and concentrated in insulin secretory granules and less in mitochondria and negligible in other intracellular organelles. ACSL1 and ACSL6 proteins were not seen in INS-1 832/13 cells or pancreatic islets...
March 15, 2017: Archives of Biochemistry and Biophysics
https://www.readbyqxmd.com/read/28154332/a-new-pain-regulatory-system-via-the-brain-long-chain-fatty-acid-receptor-gpr40-ffa1-signal
#18
REVIEW
Kazuo Nakamoto
 An increasingly large number of pharmacological and physiological works on fatty acids have shown that the functional properties of fatty acids are regulated by the amount of individual fatty acid intake and the distribution of fatty acids among organs. Recently, it has been determined that G-protein-coupled receptor 40/free fatty acid receptor 1 (GPR40/FFA1) is activated by long-chain fatty acids, such as docosahexaenoic acid (DHA). GPR40/FFA1 is mainly expressed in the β cell of the pancreas, spinal cord and brain...
2017: Yakugaku Zasshi: Journal of the Pharmaceutical Society of Japan
https://www.readbyqxmd.com/read/28139377/cpt1a-methylation-is-associated-with-plasma-adiponectin
#19
S Aslibekyan, A N Do, H Xu, S Li, M R Irvin, D Zhi, H K Tiwari, D M Absher, A R Shuldiner, T Zhang, W Chen, K Tanner, C Hong, B D Mitchell, G Berenson, D K Arnett
BACKGROUND AND AIMS: Adiponectin, an adipose-secreted protein that has been linked to insulin sensitivity, plasma lipids, and inflammatory patterns, is an established biomarker for metabolic health. Despite clinical relevance and high heritability, the determinants of plasma adiponectin levels remain poorly understood. METHODS AND RESULTS: We conducted the first epigenome-wide cross-sectional study of adiponectin levels using methylation data on 368,051 cytosine-phosphate-guanine (CpG) sites in CD4+ T-cells from the Genetics of Lipid Lowering Drugs and Diet Network (GOLDN, n = 991)...
March 2017: Nutrition, Metabolism, and Cardiovascular Diseases: NMCD
https://www.readbyqxmd.com/read/28130074/loss-of-ucp2-impairs-cold-induced-non-shivering-thermogenesis-by-promoting-a-shift-toward-glucose-utilization-in-brown-adipose-tissue
#20
Alexandre Caron, Sébastien M Labbé, Sophie Carter, Marie-Claude Roy, Roger Lecomte, Daniel Ricquier, Frédéric Picard, Denis Richard
Uncoupling protein 2 (UCP2) was discovered in 1997 and classified as an uncoupling protein largely based on its homology of sequence with UCP1. Since its discovery, the uncoupling function of UCP2 has been questioned and there is yet no consensus on the true function of this protein. UCP2 was first proposed to be a reactive oxygen species (ROS) regulator and an insulin secretion modulator. More recently, it was demonstrated as a regulator of the mitochondrial fatty acid oxidation, which prompted us to investigate its role in the metabolic and thermogenic functions of brown adipose tissue...
March 2017: Biochimie
keyword
keyword
95477
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"