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Obestatin

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https://www.readbyqxmd.com/read/29715187/possible-association-of-ghrelin-obestatin-balance-with-cardiometabolic-risk-in-obese-subjects-with-helicobacter-pylori
#1
Azza Saad Ibrahim, Mona Mohamed Eldeeb, Ola Ahmed Salama, Mona Mohamed Rashad, Khaled Mohamed Okasha
OBJECTIVES: Helicobacter pylori (H. pylori) is a common gastric infection associated with extragastric conditions. The association between H. pylori infection and obesity is unclear. H. pylori may affect gut hormones involved in food intake and energy expenditure. The aim of this study is to evaluate ghrelin/obestatin balance and leptin in obese subjects with H. pylori infection. METHODS: Sixty healthy volunteers were divided into: obese and non-obese groups. Each group was divided into H...
April 1, 2018: Endocrine Regulations
https://www.readbyqxmd.com/read/29694953/obestatin-a-ghrelin-cognate-protein-and-clinical-outcomes-in-hemodialysis-patients
#2
Carmine Zoccali, Francesca Mallamaci
No abstract text is available yet for this article.
April 25, 2018: American Journal of Nephrology
https://www.readbyqxmd.com/read/29694945/serum-obestatin-a-biomarker-of-cardiovascular-and-all-cause-mortality-in-hemodialysis-patients
#3
Ilia Beberashvili, Anna Katkov, Inna Sinuani, Ada Azar, Gregory Shapiro, Leonid Feldman, Oleg Gorelik, Kobi Stav, Shai Efrati
BACKGROUND: Recent experimental studies have suggested that obestatin, a proposed anorexigenic gut hormone and a physiological opponent of acyl-ghrelin, has protective cardiovascular effects. We tested the hypothesis that obestatin is independent of inflammatory mediators and/or acyl-ghrelin in predicting outcomes of the maintenance hemodialysis (MHD) population. METHODS: It was a 6-year cohort study on 261 MHD patients. Obestatin, acyl-ghrelin, adipokines (leptin and adiponectin), markers of inflammation and nutrition, prospective all-cause and cardiovascular mortality were studied...
April 25, 2018: American Journal of Nephrology
https://www.readbyqxmd.com/read/29506551/serum-obestatin-level-strongly-correlates-with-lipoprotein-subfractions-in-non-diabetic-obese-patients
#4
Anita Szentpéteri, Hajnalka Lőrincz, Sándor Somodi, Viktória Evelin Varga, György Paragh, Ildikó Seres, György Paragh, Mariann Harangi
BACKGROUND: Obestatin is a ghrelin-associated peptide, derived from preproghrelin. Although many of its effects are unclear, accumulating evidence supports positive actions on both metabolism and cardiovascular function. To date, level of obestatin and its correlations to the lipid subfractions in non-diabetic obese (NDO) patients have not been investigated. METHODS: Fifty NDO patients (BMI: 41.96 ± 8.6 kg/m2 ) and thirty-two normal-weight, age- and gender-matched healthy controls (BMI: 24...
March 5, 2018: Lipids in Health and Disease
https://www.readbyqxmd.com/read/29464782/does-obestatin-modulate-the-hypothalamic-appetite-regulating-network-in-peripubertal-sheep
#5
M Szlis, J Polkowska, E Skrzeczyńska, B J Przybył, A Wójcik-Gładysz
The participation of peripheral peptides in the processes regulating the food intake (energy homeostasis) at the central nervous system level remains unclear. This study focuses on the role of obestatin in neuronal activity within the hypothalamic appetite-regulating network in ruminants. The animals (n = 28) were randomly divided into two groups. The sheep in the control group received intracerebroventricular infusions of the Ringer-Locke solution, and the sheep in obestatin group were infused with obestatin (diluted in the Ringer-Locke solution) at 25 μg per 120 μl/hr...
June 2018: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/29453692/unacylated-ghrelin-and-obestatin-in-pediatric-ckd-are-they-important-in-protein-energy-wasting
#6
EDITORIAL
Zhen Wang, Eduardo A Oliveira, Robert H Mak
No abstract text is available yet for this article.
May 2018: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/29429367/obestatin-protects-and-reverses-nonalcoholic-fatty-liver-disease-and-its-associated-insulin-resistance-in-rats-via-inhibition-of-food-intake-enhancing-hepatic-adiponectin-signaling-and-blocking-ghrelin-acylation
#7
Eman F Khaleel, Ghada A Abdel-Aleem
This study investigated the ameliorative and protective effects of long-term obestatin administration (80 nmol/kg/ intraperitoneal injection (i.p.)) on the pathogenesis of high-fat diet (HFD) induced nonalcoholic fatty liver disease (NAFLD) in rats. Rats (n = 8/group) were divided as control, NAFLD, NAFLD + Simvastatin, NAFLD + obestatin, NAFLD then obestatin, and obestatin then NAFLD. Obestatin co -or post-therapy significantly reduced hepatomegaly and reversed hyperlipidemia, hepatic lipid accumulation, and insulin resistance (IR)...
February 10, 2018: Archives of Physiology and Biochemistry
https://www.readbyqxmd.com/read/29412827/biochemical-properties-and-biological-actions-of-obestatin-and-its-relevence-in-type-2-diabetes
#8
Brian D Green, David J Grieve
Obestatin was initially discovered in rat stomach extract, and although it is principally produced in the gastric mucosa, it can be found throughout the gastrointestinal tract. This 23-amino acid C-terminally amidated peptide is derived from preproghrelin and has been ascribed a wide range of metabolic effects relevant to type 2 diabetes. Obestatin reportedly inhibits gastrointestinal motility, reduces food intake and lowers body weight and improves lipid metabolism. Furthermore, it appears to exert actions on the pancreatic β-cell, most notably increasing β-cell mass and upregulating genes associated with insulin production and β-cell regeneration, with relevance to type 2 diabetes...
February 2018: Peptides
https://www.readbyqxmd.com/read/29375043/influence-of-preterm-delivery-on-ghrelin-and-obestatin-concentrations-in-maternal-plasm-milk-and-their-expression-in-mammary-epithelial-cells
#9
M Slupecka-Ziemilska, J Wolinski, A P Herman, K Romanowicz, Z Dziegielewska, M K Borszewska-Kornacka
Ghrelin and obestatin are gastrointestinal peptides with a potential role in the programming of metabolism in newborns. The present study aimed to investigate the influence of preterm delivery on ghrelin and obestatin concentrations in the maternal blood plasma and breast milk as well as their gene expressions in the mammary epithelial cells (MECs). On the 3rd day after delivery, milk and plasma samples were collected from mothers that carried to term or gave birth prematurely (< 36 weeks of gestation) and analyzed for ghrelin and obestatin concentrations...
October 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/29365958/human-obestatin-level-and-its-correlations-with-metabolic-syndrome-components-in-non-diabetic-obese-patients
#10
Anita Szentpeteri, Hajnalka Lorincz, Sandor Somodi, Viktoria Evelin Varga, Ildiko Seres, Gyorgy Paragh, Mariann Harangi
No abstract text is available yet for this article.
August 2017: Atherosclerosis
https://www.readbyqxmd.com/read/29362457/age-modifies-the-association-between-serum-obestatin-appetite-and-nutritional-status-in-maintenance-hemodialysis-patients
#11
Anna Katkov, Inna Sinuani, Ada Azar, Gregory Shapiro, Shai Efrati, Ilia Beberashvili
BACKGROUND/OBJECTIVES: Increased age is strongly associated with anorexia and protein-energy wasting (PEW) in maintenance hemodialysis (MHD) population. We hypothesized that the association of obestatin, a recently discovered anorexigenic gut hormone, with appetite and nutritional status differs by age groups. SUBJECTS/METHODS: We performed a cross-sectional study on 261MHD patients. Obestatin, acyl-ghrelin, markers of inflammation (CRP, IL-6, TNF-α) and nutrition (self-reported appetite, dietary intake, biochemical nutritional parameters, and body composition) were measured...
January 23, 2018: European Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/29359026/short-term-effects-of-obestatin-on-hexose-uptake-and-triacylglycerol-breakdown-in-human-subcutaneous-adipocytes
#12
Christian Carpéné, Francisco Les, David Estève, Jean Galitzky
AIM: To study complete dose-dependent effects of obestatin on lipolytic and glucose transport activities in human adipocyte preparations highly responsive to insulin. METHODS: Adipocytes were prepared by liberase digestion from subcutaneous abdominal adipose tissue obtained from overweight subjects undergoing plastic surgery. The index of lipolytic activity was the glycerol released in the incubation medium, while glucose transport was assessed by [3 H]-2-deoxyglucose uptake assay...
January 15, 2018: World Journal of Diabetes
https://www.readbyqxmd.com/read/29275180/effect-of-clozapine-dose-and-concentration-on-fasting-concentration-of-appetite-regulating-peptides
#13
Aleksandra Margulska, Elżbieta Kozłowska, Adam Wysokiński
The aim of this study is to analyze whether clozapine serum concentration may affect fasting serum levels of several appetite regulating peptides: CART, PYY(1-36), NPY, AgRP, des-acylated ghrelin, leptin and obestatin. Serum concentration of clozapine and fasting serum levels of des-acylated ghrelin, neuropeptide Y (NPY), agouti-related protein (AgRP), peptide YY (PYY(1-36)), cocaine- and amphetamine-regulated transcript (CART), leptin and obestatin were measured in 30 subjects with schizophrenia on clozapine monotherapy...
December 10, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/29248361/leptin-an-adipokine-with-central-importance-in-the-global-obesity-problem
#14
REVIEW
Jeffrey I Mechanick, Shan Zhao, W Timothy Garvey
Leptin has central importance in the global obesity and cardiovascular disease problem. Leptin is principally secreted by adipocytes and acts in the hypothalamus to suppress appetite and food intake, increase energy expenditure, and regulate body weight. Based on clinical translation of specific and networked actions, leptin affects the cardiovascular system and may be a marker and driver of cardiometabolic risk factors with interventions that are actionable by cardiologists. Leptin subnetwork analysis demonstrates a statistically significant role for ethnoculturally and socioeconomically appropriate lifestyle intervention in cardiovascular disease...
December 13, 2017: Global Heart
https://www.readbyqxmd.com/read/29230615/association-of-604g-a-and-501a-c-ghrelin-and-obestatin-prepropeptide-gene-polymorphisms-with-polycystic-ovary-syndrome
#15
Talaat Dabbaghi Ghaleh, Somayeh Saadat Skandari, Reza Najafipour, Zahra Rashvand, Masoud Darabi, Mehdi Sahmani
Ghrelin hormone has an important role in a wide range of metabolic and non-metabolic processes. Polymorphisms of ghrelin gene could be associated with a large number of diseases. The aim of this study was to evaluate the association of -604G/A and -501A/C polymorphisms in ghrelin and obestatin prepropeptide gene (GHRL) with polycystic ovary syndrome (PCOS) in a sample of Iranian women. One hundred and fifty-two women with PCOS and 162 age-matched apparently healthy women as control group were enrolled in this study...
April 2018: Biochemical Genetics
https://www.readbyqxmd.com/read/29186652/combination-of-obestatin-and-bone-marrow-mesenchymal-stem-cells-prevents-aggravation-of-endocrine-pancreatic-damage-in-type-ii-diabetic-rats
#16
Noha I Hussien, Nesrine Ebrahim, Ola M Mohammed, Dina Sabry
One of the new promising therapies in treatment of diabetes mellitus is mesenchymal stem cells (MSCs) which have an interesting therapeutic potentiality based on their paracrine effect and transdifferentiation potentiality. Also obestatin improves the generation of functional β cells/islet-like cell clusters in vitro, suggesting implications for cell-based replacement therapy in diabetes. So the aim of this study was to evaluate the effect of combination of both MSCs and obestatin on an experimental model of type II diabetes mellitus (T2DM)...
November 30, 2017: International Journal of Stem Cells
https://www.readbyqxmd.com/read/29159483/obestatin-can-potentially-differentiate-wharton-s-jelly-mesenchymal-stem-cells-into-insulin-producing-cells
#17
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/29151067/the-x-a-like-cell-revisited-spotlight-on-the-peripheral-effects-of-nucb2-nesfatin-1-and-ghrelin
#18
E Weibert, A Stengel
The gastric X/A-like cell was long thought to be restricted to the production of acyl ghrelin. However, the subsequent years witnessed the discovery of other peptide products derived from this cell, namely desacyl ghrelin, obestatin and nesfatin-1. While the role of obestatin remains highly questionable and is very critically discussed in the literature, besides acyl ghrelin also desacyl ghrelin and nesfatin-1 have been implicated in the regulation of food intake. As observed for several other peptide hormones before, ghrelin and nesfatin-1 are not restricted to one function but rather exert pleiotropic actions including effects on gastrointestinal motility, thermogenesis, lipid and glucose homeostasis, stress mediation, cardiovascular as well as reproductive functions...
August 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/29150712/unacylated-ghrelin-and-obestatin-promising-biomarkers-of-protein-energy-wasting-in-children-with-chronic-kidney-disease
#19
Alice Monzani, Michela Perrone, Flavia Prodam, Stefania Moia, Giulia Genoni, Sara Testa, Fabio Paglialonga, Anna Rapa, Gianni Bona, Giovanni Montini, Alberto Edefonti
BACKGROUND: Impairment in orexigenic/anorexigenic hormone balance may be key in the pathogenesis of protein energy wasting in children with chronic kidney disease (CKD). Measurement of ghrelin and obestatin concentrations in children with CKD would help assess the potential contribution of these hormones to uremic protein energy wasting. METHODS: This was a cross-sectional case-control study. Acylated and unacylated ghrelin and obestatin were measured in 42 children on conservative treatment (CT), 20 children on hemodialysis, 48 pediatric renal transplant (RTx) recipients and 43 controls (CTR) (mean age 11...
November 18, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/29137471/serum-levels-of-spexin-and-kisspeptin-negatively-correlate-with-obesity-and-insulin-resistance-in-women
#20
P A Kołodziejskii, E Pruszyńska-Oszmałek, E Korek, M Sassek, D Szczepankiewicz, P Kaczmarek, L Nogowski, P Maćkowiak, K W Nowak, H Krauss, M Z Strowski
Spexin (SPX) and kisspeptin (KISS) are novel peptides relevant in the context of regulation of metabolism, food intake, puberty and reproduction. Here, we studied changes of serum SPX and KISS levels in female non-obese volunteers (BMI<25 kg/m2) and obese patients (BMI>35 kg/m2). Correlations between SPX or KISS with BMI, McAuley index, QUICKI, HOMA IR, serum levels of insulin, glucagon, leptin, adiponectin, orexin-A, obestatin, ghrelin and GLP-1 were assessed. Obese patients had lower SPX and KISS levels as compared to non-obese volunteers (SPX: 4...
November 10, 2017: Physiological Research
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