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diabetes obesity hormones

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https://www.readbyqxmd.com/read/29168114/parathyroid-hormone-in-surgery-induced-weight-loss-no-glucometabolic-effects-but-potential-adaptive-response-to-skeletal-loading
#1
Valeria Guglielmi, Alfonso Bellia, Paolo Gentileschi, Mauro Lombardo, Monica D'Adamo, Davide Lauro, Paolo Sbraccia
PURPOSE: Increased parathyroid hormone (PTH) is commonly associated with obesity, and its role in the pathogenesis of obesity-related glucometabolic abnormalities is uncertain. We aimed to explore the relationships of PTH with glucose/insulin homeostasis parameters before and after bariatric surgery-induced weight loss, and whether they depend or not on 25-hydroxyvitamin D (25OHD) status. METHODS: We included 42 subjects (27 women, aged 40 ± 5 years, BMI 48...
November 22, 2017: Endocrine
https://www.readbyqxmd.com/read/29166372/placental-lipid-processing-in-response-to-a-maternal-high-fat-diet-and-diabetes-in-rats
#2
Eli J Louwagie, Tricia D Larsen, Angela L Wachal, Michelle L Baack
BACKGROUND: Diabetes and obesity during pregnancy impact the health of both mothers and developing babies. Prevention focuses on glycemic control, but increasing evidence implicates a role for lipids. Using a rat model, we showed that a maternal high-fat (HF) diet, increased perinatal morbidity and mortality, but lipid processing across the maternal-placental-fetal triad remained unstudied. We hypothesized that HF diet would disrupt placental lipid processing to exaggerate fuel-mediated consequences of diabetic pregnancy...
November 22, 2017: Pediatric Research
https://www.readbyqxmd.com/read/29164610/shared-pathological-pathways-of-alzheimer-s-disease-with-specific-comorbidities-current-perspectives-and-interventions
#3
REVIEW
Christiane M Nday, Despoina Eleftheriadou, Graham Jackson
Alzheimer's disease (AD) belongs to one of the most multifactorial, complex and heterogeneous morbidity-leading disorders. Despite the extensive research in the field, AD pathogenesis is still at some extend obscure. Mechanisms linking AD with certain comorbidities, namely diabetes mellitus, obesity and dyslipidemia, are increasingly gaining importance, mainly due to their potential role in promoting AD development and exacerbation. Their exact cognitive impairment trajectories, however, remain to be fully elucidated...
November 21, 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/29146657/a-randomised-controlled-trial-of-a-duodenal-jejunal-bypass-sleeve-device-endobarrier-compared-with-standard-medical-therapy-for-the-management-of-obese-subjects-with-type-2-diabetes-mellitus
#4
Michael Alan Glaysher, Aruchuna Mohanaruban, Christina Gabriele Prechtl, Anthony P Goldstone, Alexander Dimitri Miras, Joanne Lord, Navpreet Chhina, Emanuela Falaschetti, Nicholas Andrew Johnson, Werd Al-Najim, Claire Smith, Jia V Li, Mayank Patel, Ahmed R Ahmed, Michael Moore, Neil Poulter, Stephen Bloom, Ara Darzi, Carel Le Roux, James P Byrne, Julian P Teare
INTRODUCTION: The prevalence of obesity and obesity-related diseases, including type 2 diabetes mellitus (T2DM), is increasing. Exclusion of the foregut, as occurs in Roux-en-Y gastric bypass, has a key role in the metabolic improvements that occur following bariatric surgery, which are independent of weight loss. Endoscopically placed duodenal-jejunal bypass sleeve devices, such as the EndoBarrier (GI Dynamics, Lexington, Massachusetts, USA), have been designed to create an impermeable barrier between chyme exiting the stomach and the mucosa of the duodenum and proximal jejunum...
November 15, 2017: BMJ Open
https://www.readbyqxmd.com/read/29145569/immune-system-an-emerging-player-in-mediating-effects-of-endocrine-disruptors-on-metabolic-health
#5
Amita Bansal, Jorge Henao Mejia, Rebecca A Simmons
The incidence of metabolic disorders like type 2 diabetes and obesity continue to increase. In addition to the well-known contributors such as food intake and sedentary lifestyle, recent research in the exposure science discipline provides new evidence that exposure to endocrine disrupting chemicals like bisphenol A and phthalates via multiple routes (food, drink and skin contact) also contribute to the increased risk of metabolic disorders. Endocrine disrupting chemicals (EDCs) can disrupt any aspect of hormone action...
November 14, 2017: Endocrinology
https://www.readbyqxmd.com/read/29145541/variations-in-adipor1-but-not-adipor2-are-associated-with-hypertriglyceridemia-and-diabetes-in-an-admixed-latin-american-population
#6
Gustavo Gustavo Mora-García, María S Ruiz-Díaz, Fabian Espitia-Almeida, Doris Gómez-Camargo
BACKGROUND: Adiponectin is a hormone secreted by adipose tissue. It regulates glycolysis and lipolysis and is involved in the pathophysiology of diabetes and related disorders. Its activity is mainly mediated by the transmembrane receptors AdipoR1 and AdipoR2, which are encoded by ADIPOR1 (1q32.1) and ADIPOR2 (12p13.33) genes, respectively. In genetic association studies, single nucleotide polymorphisms (SNPs) in or near these genes have been associated with metabolic alterations. However, these relationships are still controversial...
July 2017: Review of Diabetic Studies: RDS
https://www.readbyqxmd.com/read/29144833/low-dietary-fiber-intake-increases-collinsella-abundance-in-the-gut-microbiota-of-overweight-and-obese-pregnant-women
#7
Luisa F Gomez-Arango, Helen L Barrett, Shelley A Wilkinson, Leonie K Callaway, H David McIntyre, Mark Morrison, Marloes Dekker Nitert
The gut microbiota contributes to the regulation of glucose metabolism in pregnancy. Abundance of the genus Collinsella is positively correlated with circulating insulin; however, it is unclear what determines Collinsella abundance. This study aims to validate the correlation between Collinsella and insulin and to elucidate if macronutrient intake alters Collinsella abundance and gut microbiota composition. Gut microbiota profiles were assessed by 16S rRNA sequencing in 57 overweight and 73 obese pregnant women from the SPRING (Study of PRobiotics IN Gestational diabetes) trial at 16 weeks gestation and correlated with metabolic hormone levels and macronutrient intake...
November 16, 2017: Gut Microbes
https://www.readbyqxmd.com/read/29144813/diagnosing-and-monitoring-endocrine-dysfunction-diabetes-and-obesity-in-a-cohort-of-adult-survivors-of-childhood-cancer
#8
Victoria Rollins Hudspeth, Stuart Harrison Gold, David Robert Clemmons
OBJECTIVE: 5-year survival for childhood cancer has increased to 80%, resulting in a growing population of adult survivors of childhood cancer (ASOCC). Long-term endocrine dysfunction is as high as 63% when screened in research protocols. The purpose of this study was to evaluate the prevalence of endocrine testing, endocrine dysfunction, diabetes, obesity, and endocrinologist visits outside of a research screening protocol. METHODS: Retrospective chart review was performed for 176 ASOCC who were diagnosed with cancer before age 18, followed at least 10 years, were now at least 18, and had survived to the time of chart review...
November 16, 2017: Endocrine Practice
https://www.readbyqxmd.com/read/29144812/increased-bone-turnover-in-type-2-diabetes-patients-randomized-to-bariatric-surgery-vs-medical-therapy-at-5-years
#9
Megan R Crawford, Nathan Pham, Leila Khan, James F Bena, Philip R Schauer, Sangeeta R Kashyap
OBJECTIVE: The aim of our study was to determine the 5 year outcomes of bariatric surgery vs. intensive medical therapy on bone turnover in patients with type 2 diabetes (T2DM) from the STAMPEDE trial. METHODS: This is an ancillary investigation of a 5 year randomized control trial at a single tertiary care center involving 95 patients aged 48.5 ± 8 years with obesity (BMI: 36.5±3.6 kg/m(2)) and uncontrolled T2DM (HbA1C: 9.3 ±1.6%). Patients were randomized to intensive medical therapy (IMT; N=25), Roux-en-Y gastric bypass (RYGB; N=37), or sleeve gastrectomy (SG; N=33) for diabetes treatment...
November 16, 2017: Endocrine Practice
https://www.readbyqxmd.com/read/29144805/dpp4-inhibitor-sitagliptin-as-a-potential-treatment-option-in-metformin-intolerant-obese-women-with-polycystic-ovary-syndrome-a-pilot-randomized-study
#10
Simona Ferjan, Andrej Janez, Mojca Jensterle
OBJECTIVE: Metformin has an established role in the management of polycystic ovary syndrome (PCOS). Some patients cannot tolerate it due to associated gastrointestinal adverse events. The present study evaluated DPP4 inhibitor sitagliptin as a potential treatment option in metformin intolerant PCOS. DESIGN: We conducted a 12-week prospective randomized open-label study with 30 obese metformin intolerant women with PCOS (aged 35.0±7.2 years, BMI 36.9±5.5 kg/m(2))...
November 16, 2017: Endocrine Practice
https://www.readbyqxmd.com/read/29143554/the-octanoylated-energy-regulating-hormone-ghrelin-an-expanded-view-of-ghrelin-s-biological-interactions-and-avenues-for-controlling-ghrelin-signaling
#11
Elizabeth R Cleverdon, Kayleigh R McGovern-Gooch, James L Hougland
Ghrelin is a small peptide hormone that requires a unique post-translational modification, serine octanoylation, to bind and activate the GHS-R1a receptor. Initially demonstrated to stimulate hunger and appetite, ghrelin-dependent signaling is implicated in a variety of neurological and physiological processes influencing diseases such as diabetes, obesity, and Prader-Willi syndrome. In addition to its cognate receptor, recent studies have revealed ghrelin interacts with a range of binding partners within the bloodstream...
November 16, 2017: Molecular Membrane Biology
https://www.readbyqxmd.com/read/29141991/human-sex-hormone-binding-globulin-does-not-provide-metabolic-protection-against-dysglycemia-in-mice
#12
Yael Sofer, Nava Nevo, Michal Vechoropulus, Gabi Shefer, Esther Osher, Nathan Landis, Geoffrey L Hammond, Naftali Stern
BACKGROUND: Sex hormone binding globulin (SHBG) is the main transporter of sex hormones in most vertebrates. Low SHBG levels have been linked to increased propensity for diabetes and metabolic syndrome. Polymorphisms of the SHBG gene linked to low SHBG protein levels, also strongly predicted increased risk of type 2 diabetes, thus raising the possibility that SHBG may play a role in the in the pathogenesis of insulin resistance and diabetes. AIM: To examine whether expression of human SHBG in mice may ameliorate the development of diabetes and metabolic syndrome in response to a high fat diet...
November 15, 2017: Endocrine Connections
https://www.readbyqxmd.com/read/29135487/update-on-endocrine-aspects-of-childhood-obesity
#13
Charumathi Baskaran, Nurgun Kandemir
PURPOSE OF REVIEW: Although childhood obesity has leveled off in the last decade, 'severe obesity' continues to be on the rise. Various genetic, environmental and hormonal factors contribute to obesity. This article reviews the most current understanding of obesity's multifactorial origin and recent recommendations for its management in childhood and adolescence. RECENT FINDINGS: Epigenetics plays a key role in transmitting obesity risk to offspring. Single-nucleotide polymorphisms at genetic loci for adipokines and their receptors are associated with obesity...
November 11, 2017: Current Opinion in Endocrinology, Diabetes, and Obesity
https://www.readbyqxmd.com/read/29130593/chylomicronemia-risk-factors-ranked-by-importance-for-the-individual-and-community-in-108-711-women-and-men
#14
Simon B Pedersen, Anette Varbo, Anne Langsted, Børge G Nordestgaard
BACKGROUND: Hypertriglyceridemia prevalence is increasing as more individuals become obese, and chylomicronemia risk factors for the individual and community have not been described previously. OBJECTIVE: To describe chylomicronemia risk factors in the general population for individuals and community. METHODS: 108,711 individuals from the Copenhagen General Population Study were grouped as unlikely chylomicronemia (nonfasting triglycerides <2mmol/L(177 mg/dL)), possible chylomicronemia (2-4...
November 11, 2017: Journal of Internal Medicine
https://www.readbyqxmd.com/read/29127727/diversity-in-peptide-recognition-by-the-sh2-domain-of-sh2b1
#15
Marissa A McKercher, Xiaoyang Guan, Zhongping Tan, Deborah S Wuttke
SH2B1 is a multidomain protein that serves as a key adapter to regulate numerous cellular events, such as insulin, leptin, and growth hormone signaling pathways. Many of these protein-protein interactions are mediated by the SH2 domain of SH2B1, which recognizes ligands containing a phosphorylated tyrosine (pY), including peptides derived from janus kinase 2, insulin receptor, and insulin receptor substrate-1 and -2. Specificity for the SH2 domain of SH2B1 is conferred in these ligands either a hydrophobic or an acidic side chain at the +3 position C-terminal to the pY...
November 11, 2017: Proteins
https://www.readbyqxmd.com/read/29121940/plasma-irisin-is-elevated-in-type-2-diabetes-and-is-associated-with-increased-e-selectin-levels
#16
Karan S Rana, Chathyan Pararasa, Islam Afzal, David A Nagel, Eric J Hill, Clifford J Bailey, Helen R Griffiths, Ioannis Kyrou, Harpal S Randeva, Srikanth Bellary, James E Brown
BACKGROUND: Irisin is a hormone released mainly from skeletal muscle after exercise which increases adipose tissue energy expenditure. Adipocytes can also release irisin after exercise, acting as a local adipokine to induce white adipose tissue to take on a brown adipose tissue-like phenotype, suggesting that irisin and its receptor may represent a novel molecular target for the treatment of obesity and obesity-related diabetes. Previous reports provide conflicting evidence regarding circulating irisin levels in patients with type 2 diabetes (T2DM)...
November 9, 2017: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/29115211/measurement-of-gastrointestinal-hormones
#17
Nicolai J Wewer Albrechtsen
Towards the end of the 20th century, the number of subjects with diabetes and obesity rose exponentially. The discoveries of insulin- and appetite-modulating chemical signals, including glucagon-like peptide-1 (GLP-1), secreted from the gastrointestinal system, led to development of a new group of drugs which now are being used for glucose-lowering therapy and weight loss. Understanding of the physiology of gut derived signals and their pathophysiologi-cal importance requires accurate measurements of their circulat-ing levels...
November 2017: Danish Medical Journal
https://www.readbyqxmd.com/read/29109040/chronic-chlorpyrifos-exposure-elicits-diet-specific-effects-on-metabolism-and-the-gut-microbiome-in-rats
#18
Bing Fang, Jin Wang Li, Ming Zhang, Fa Zheng Ren, Guo Fang Pang
Chlorpyrifos is a commonly-used pesticide which was reported to interfere with hormone signaling and metabolism, however, little is known about its effect on gut microbiota. In this study, adult male rats fed a normal (NF) or high fat (HF) diet were exposed to 0.3 or 3.0 mg chlorpyrifos/kg bodyweight/day or vehicle alone for 9 weeks. Effects on bodyweight, serum levels of glucose, lipid, cytokines, and gut microbiome community structure were measured. The effects of chlorpyrifos on metabolism were dose- and diet-dependent, with NF-fed rats administered the low dose showing the largest metabolic changes...
November 3, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/29106398/asprosin-is-a-centrally-acting-orexigenic-hormone
#19
Clemens Duerrschmid, Yanlin He, Chunmei Wang, Chia Li, Juan C Bournat, Chase Romere, Pradip K Saha, Mark E Lee, Kevin J Phillips, Mahim Jain, Peilin Jia, Zhongming Zhao, Monica Farias, Qi Wu, Dianna M Milewicz, V Reid Sutton, David D Moore, Nancy F Butte, Michael J Krashes, Yong Xu, Atul R Chopra
Asprosin is a recently discovered fasting-induced hormone that promotes hepatic glucose production. Here we demonstrate that asprosin in the circulation crosses the blood-brain barrier and directly activates orexigenic AgRP(+) neurons via a cAMP-dependent pathway. This signaling results in inhibition of downstream anorexigenic proopiomelanocortin (POMC)-positive neurons in a GABA-dependent manner, which then leads to appetite stimulation and a drive to accumulate adiposity and body weight. In humans, a genetic deficiency in asprosin causes a syndrome characterized by low appetite and extreme leanness; this is phenocopied by mice carrying similar mutations and can be fully rescued by asprosin...
November 6, 2017: Nature Medicine
https://www.readbyqxmd.com/read/29101069/association-between-fto-gene-polymorphisms-and-type-2-diabetes-mellitus-serum-levels-of-apelin-and-androgen-hormones-among-iranian-obese-women
#20
Farzaneh Ghafarian Alipour, Shayan Ziaee, Mohamad Reza Ashoori, Mir Saeid Zakeri, Mohammad Ali Boroumand, Naser Aghamohammadzadeh, Maryam Abbasi-Majdi, Fatemeh Shool, Navid Sarakhs Asbaghi, Abolghasem Mohammadi, Nosratollah Zarghami
BACKGROUND AND AIMS: Recent studies show that FTO single nucleotide polymorphisms (SNPs) are associated with obesity and type 2 diabetes mellitus (T2DM). On the other hand, many animal models and clinical studies have demonstrated that apelin, an adipocytokine, is related to the obesity and T2DM. Additionally, obese women are at risk of Hyperandrogenemia. So, the aim of this study was to investigate the relationship between FTO variants (rs763967273, rs759031579, rs141115189, rs9926289, rs76804286 and rs9939609) with T2DM, serum apelin and androgenic hormones in Iranian obese women...
October 31, 2017: Gene
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