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https://www.readbyqxmd.com/read/28335560/serum-amyloid-a-production-is-triggered-by-sleep-deprivation-in-mice-and-humans-is-that-the-link-between-sleep-loss-and-associated-comorbidities
#1
Edson M de Oliveira, Bruna Visniauskas, Sergio Tufik, Monica L Andersen, Jair R Chagas, Ana Campa
Serum amyloid A (SAA) was recently associated with metabolic endotoxemia, obesity and insulin resistance. Concurrently, insufficient sleep adversely affects metabolic health and is an independent predisposing factor for obesity and insulin resistance. In this study we investigated whether sleep loss modulates SAA production. The serum SAA concentration increased in C57BL/6 mice subjected to sleep restriction (SR) for 15 days or to paradoxical sleep deprivation (PSD) for 72 h. Sleep restriction also induced the upregulation of Saa1...
March 21, 2017: Nutrients
https://www.readbyqxmd.com/read/28335507/hydroxytyrosol-in-the-prevention-of-the-metabolic-syndrome-and-related-disorders
#2
REVIEW
Julien Peyrol, Catherine Riva, Marie Josèphe Amiot
Virgin olive oil (VOO) constitutes the main source of fat in the Mediterranean diet. VOO is rich in oleic acid, displaying health-promoting properties, but also contains minor bioactive components, especially phenolic compounds. Hydroxytyrosol (HT), the main polyphenol of olive oil, has been reported to be the most bioactive component. This review aims to compile the results of clinical, animal and cell culture studies evaluating the effects of HT on the features of Metabolic Syndrome (MetS) (body weight/adiposity, dyslipidemia, hypertension, and hyperglycemia/insulin resistance) and associated complications (oxidative stress and inflammation)...
March 20, 2017: Nutrients
https://www.readbyqxmd.com/read/28335087/ursolic-acid-and-mechanisms-of-actions-on-adipose-and-muscle-tissue-a-systematic-review
#3
REVIEW
Carlos K Katashima, Vagner R Silva, Tatyanne L Gomes, Claude Pichard, Gustavo D Pimentel
This systematic review aimed at addressing the ursolic acid actions as an adjunctive treatment of the obesity-mediated metabolic abnormalities. To explore our aims, we used the literature search including clinical and animal studies using the Medline and Google Scholar (up to December 2015). Out of 63 screened studies, 17 presented eligibility criteria, such as the use of ursolic acid on adiposity, energy expenditure and skeletal muscle mass in mice and humans. In the literature, we found that several physiological and molecular mechanisms are implicated in the effects of ursolic acid on obesity, energy expenditure, hepatic steatosis, skeletal muscle mass loss and physical fitness, such as (1) increase of thermogenesis by modulation adipocyte transcription factors, activation of 5' adenosine monophosphate-activated protein kinase and overexpression of the uncoupling protein 1 thermogenic marker; (2) enhancement of skeletal muscle mass by activation in bloodstream growth hormone and insulin-like growth factor-1 concentrations secretion, as well as in the activation of mammalian target of rapamycin and inhibition of ring-finger protein-1; and (3) improvement of physical fitness by skeletal muscle proliferator-activated receptor gamma co-activator alpha and sirtuin 1 expression...
March 23, 2017: Obesity Reviews: An Official Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28335075/breastmilk-with-a-high-omega-6-to-omega-3-fatty-acid-ratio-induced-cellular-events-similar-to-insulin-resistance-and-obesity-in-3t3-l1-adipocytes
#4
H Vaidya, S K Cheema
BACKGROUND: An imbalance of omega (n)-3 and n-6 polyunsaturated fatty acids (PUFA) during critical periods of development may have adverse effects on the health of the newborn in later life. OBJECTIVES: We hypothesized that breastmilk with higher n-6 to n-3 PUFA ratio will have higher inflammatory cytokines and initiate cellular events similar to insulin resistance and obesity. METHODS: Breastmilk was collected from healthy women who gave natural birth at full term...
March 23, 2017: Pediatric Obesity
https://www.readbyqxmd.com/read/28334911/mertk-rs4374383-variant-predicts-incident-nonalcoholic-fatty-liver-disease-and-diabetes-role-of-mononuclear-cell-activation-and-adipokine-response-to-dietary-fat
#5
Giovanni Musso, Maurizio Cassader, Franco De Michieli, Elena Paschetta, Silvia Pinach, Francesca Saba, Daria Bongiovanni, Luciana Framarin, Mara Berrutti, Nicola Leone, Stefania Corvisieri, Renato Parente, Federica Molinaro, Antonio Sircana, Bo Simona, Roberto Gambino
The loss-of-function rs4374383 G>A variant in Myeloid-epithelial-reproductive Tyrosine Kinase (MERTK) gene has been linked to hepatic fibrosis in chronic liver diseases. MERTK is expressed by immune and non-immune cells involved in inflammation, metabolism and vascular homeostasis. We assessed the impact of MERTK rs4374383 G>A variant on nonalcoholic fatty liver disease (NAFLD) incidence and severity and on glucose and lipid metabolism.We followed-up 305 healthy nonobese nondiabetic, metabolic syndrome-free insulin sensitive participants in a population-based study, characterized for MERTK G>A polymorphism, adipokine profile and inflammatory markers...
March 8, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28334683/combined-metformin-and-insulin-treatment-reverses-metabolically-impaired-omental-adipogenesis-and-accumulation-of-4-hydroxynonenal-in-obese-diabetic-patients
#6
Morana Jaganjac, Shamma Almuraikhy, Fatima Al-Khelaifi, Mashael Al-Jaber, Moataz Bashah, Nayef A Mazloum, Kamelija Zarkovic, Neven Zarkovic, Georg Waeg, Wael Kafienah, Mohamed A Elrayess
OBJECTIVE: Obesity-associated impaired fat accumulation in the visceral adipose tissue can lead to ectopic fat deposition and increased risk of insulin resistance and type 2 diabetes mellitus (T2DM). This study investigated whether impaired adipogenesis of omental (OM) adipose tissues and elevated 4-hydroxynonenal (4-HNE) accumulation contribute to this process, and if combined metformin and insulin treatment in T2DM patients could rescue this phenotype. METHODS: OM adipose tissues were obtained from forty clinically well characterized obese individuals during weight reduction surgery...
March 16, 2017: Redox Biology
https://www.readbyqxmd.com/read/28334508/dietary-fatty-acids-influence-sperm-quality-and-function
#7
A Ferramosca, N Moscatelli, M Di Giacomo, V Zara
Recently, obesity has been linked to male infertility. In animal models the administration of a high-fat diet caused a reduction in sperm quality, by impairing gamete energy metabolism. The aim of this study was to investigate a possible effect of dietary fatty acids supplementation in the modulation of sperm energy metabolism and, in turn, in the improvement of sperm quality in rats fed a high-fat diet. Sexually mature male Sprague-Dawley rats were divided into four groups and fed for 4 weeks a standard diet (control group), a high-fat diet (enriched in 35% of fat and 15% sucrose), a high-fat diet supplemented with 2...
March 23, 2017: Andrology
https://www.readbyqxmd.com/read/28333398/dietary-cholesterol-interacts-with-srebf1-to-modulate-obesity-in-chinese-children
#8
Shixiu Zhang, Xinying Lin, Henry Lynn, Guifa Xu, Jun Li, Changfeng Zhao, Mingmei Li
SCOPE: Sterol Regulatory Element Binding Protein 1 Gene (SREBF1) is an important candidate gene for obesity that could be affected by cholesterol. Different SREBF1 gene variants may have distinct responses to cholesterol, leading to different risks for obesity and obesity-related metabolic traits. Thus, we performed a gene-by-diet correlation analysis to test whether SREBF1 gene variation modulate the relationship between cholesterol and obesity. METHODS AND RESULTS: A total of 642 school-aged children in Jinan, China, were selected by stratified cluster nested sampling...
March 23, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/28333388/central-regulation-of-glucose-homeostasis
#9
Alexander Tups, Jonas Benzler, Domenico Sergi, Sharon R Ladyman, Lynda M Williams
The ability of the brain to directly control glucose levels in the blood independently of its effects on food intake and body weight has been known ever since 1854 when Claude Bernard, a French physiologist, discovered that lesioning the floor of the fourth ventricle in rabbits led to a rise of sugar in the blood. Despite this outstanding discovery at that time, it took more than 140 years before progress started to be made in identifying the underlying mechanisms of brain-mediated control of glucose homeostasis...
March 16, 2017: Comprehensive Physiology
https://www.readbyqxmd.com/read/28333384/transcriptional-regulation-of-adipogenesis
#10
Paula Mota de Sá, Allison J Richard, Hardy Hang, Jacqueline M Stephens
Adipocytes are the defining cell type of adipose tissue. Once considered a passive participant in energy storage, adipose tissue is now recognized as a dynamic organ that contributes to several important physiological processes, such as lipid metabolism, systemic energy homeostasis, and whole-body insulin sensitivity. Therefore, understanding the mechanisms involved in its development and function is of great importance. Adipocyte differentiation is a highly orchestrated process which can vary between different fat depots as well as between the sexes...
March 16, 2017: Comprehensive Physiology
https://www.readbyqxmd.com/read/28333098/anti-obesity-and-anti-diabetic-effect-of-neoagarooligosaccharides-on-high-fat-diet-induced-obesity-in-mice
#11
Sun Joo Hong, Je-Hyeon Lee, Eun Joo Kim, Hea Jung Yang, Jae-Seon Park, Soon-Kwang Hong
Neoagarooligosaccharides (NAOs), mainly comprising neoagarotetraose and neoagarohexaose, were prepared by hydrolyzing agar with β-agarase DagA from Streptomyces coelicolor, and the anti-obesity and anti-diabetic effects of NAOs on high-fat diet (HFD)-induced obesity in mice were investigated after NAOs-supplementation for 64 days. Compared to the HFD group, the HFD-0.5 group that was fed with HFD + NAOs (0.5%, w/w) showed remarkable reduction of 36% for body weight gain and 37% for food efficiency ratios without abnormal clinical signs...
March 23, 2017: Marine Drugs
https://www.readbyqxmd.com/read/28333091/marine-peptides-as-potential-agents-for-the-management-of-type-2-diabetes-mellitus-a-prospect
#12
REVIEW
En-Qin Xia, Shan-Shan Zhu, Min-Jing He, Fei Luo, Cheng-Zhan Fu, Tang-Bin Zou
An increasing prevalence of diabetes is known as a main risk for human health in the last future worldwide. There is limited evidence on the potential management of type 2 diabetes mellitus using bioactive peptides from marine organisms, besides from milk and beans. We summarized here recent advances in our understanding of the regulation of glucose metabolism using bioactive peptides from natural proteins, including regulation of insulin-regulated glucose metabolism, such as protection and reparation of pancreatic β-cells, enhancing glucose-stimulated insulin secretion and influencing the sensitivity of insulin and the signaling pathways, and inhibition of bioactive peptides to dipeptidyl peptidase IV, α-amylase and α-glucosidase activities...
March 23, 2017: Marine Drugs
https://www.readbyqxmd.com/read/28333074/assessment-of-the-anti-hyperglycaemic-anti-inflammatory-and-antioxidant-activities-of-the-methanol-extract-of-moringa-oleifera-in-diabetes-induced-nephrotoxic-male-wistar-rats
#13
Elizabeth I Omodanisi, Yapo G Aboua, Oluwafemi O Oguntibeju
Diabetes mellitus is an endocrine disease of multiple aetiologies in insulin secretion. A deficiency in insulin results in hyperglycemia with metabolic disturbances of biomolecules. Moringa oleifera (MO) is endemic in the tropics with a variety of ethnomedicinal importance. The leaf of this plant has been reported to possess antioxidant and medicinal properties that may be helpful in the treatment and management of diabetes and its associated complications. Diabetes was induced intraperitoneally in rats by a single dose of streptozotocin (55 mg/kg) and treated with methanolic extract of Moringa oleifera (250 mg/kg b...
March 23, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28332771/prenatal-high-fat-diet-alters-placental-morphology-nutrient-transporter-expression-and-mtorc1-signaling-in-rat
#14
Lin Song, Bo Sun, Gretha J Boersma, Zachary A Cordner, Jianqun Yan, Timothy H Moran, Kellie L K Tamashiro
OBJECTIVE: This study aimed to determine how the rat placenta and fetus respond to maternal high-fat (HF) diet during gestation and to identify the possible mechanisms. METHODS: Pregnant Sprague-Dawley rats were fed with standard chow (13.5% fat) or HF (60% fat) diet during gestation. Placentas were collected on gestation day 21. RESULTS: HF dams had greater fat mass, higher plasma leptin, lower plasma adiponectin, and impaired glucose tolerance during pregnancy...
March 23, 2017: Obesity
https://www.readbyqxmd.com/read/28332577/absence-of-role-of-dietary-protein-sensing-in-the-metabolic-benefits-of-duodenal-jejunal-bypass-in-the-mouse
#15
Aude Barataud, Daisy Goncalves, Jennifer Vinera, Carine Zitoun, Adeline Duchampt, Amandine Gautier-Stein, Gilles Mithieux
Roux-en-Y gastric bypass (RYGB) induces remission or substantial improvement of type 2 diabetes mellitus (T2D) but underlying mechanisms are still unclear. The beneficial effects of dietary proteins on energy and glucose homeostasis are mediated by the antagonist effects of peptides toward mu-opioid receptors (MORs), which are highly expressed in the distal gut. We hypothesized that the beneficial effects of RYGB could depend at least in part on the interaction of peptides from food with intestinal MORs. Duodenal-jejunal bypass (DJB) was performed in obese and lean wild-type (WT) or MOR deficient (MOR(-/-)) mice...
March 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28332351/metabolism-centric-overview-of-the-pathogenesis-of-alzheimer-s-disease
#16
REVIEW
Somang Kang, Yong Ho Lee, Jong Eun Lee
Alzheimer's disease (AD) is a degenerative brain disease and the most common cause of dementia. AD is characterized by the extracellular amyloid beta (Aβ) plaques and intraneuronal deposits of neurofibrillary tangles (NFTs). Recently, as aging has become a familiar phenomenon around the world, patients with AD are increasing in number. Thus, many researchers are working toward finding effective therapeutics for AD focused on Aβ hypothesis, although there has been no success yet. In this review paper, we suggest that AD is a metabolic disease and that we should focus on metabolites that are affected by metabolic alterations to find effective therapeutics for AD...
May 2017: Yonsei Medical Journal
https://www.readbyqxmd.com/read/28331986/renal-function-preservation-with-pioglitazone-or-with-basal-insulin-as-an-add-on-therapy-for-patients-with-type-2-diabetes-mellitus
#17
Yu-Hung Chang, Der-Wei Hwu, Dao-Ming Chang, Ling-Wang An, Chang-Hsun Hsieh, Yau-Jiunn Lee
AIMS: Clinical outcome may differ owing to the distinct pharmacological characteristics of insulin sensitizers and insulin. This study was performed to compare the metabolic and renal function changes with add-on pioglitazone treatment versus basal insulin in patients with type 2 diabetes mellitus (DM) in whom sulfonylurea and metformin regimens failed. METHODS: Patients who were consecutively managed in the diabetes comprehensive program with add-on pioglitazone or detemir/glargine treatment for at least 2 years following sulfonylurea and metformin treatment failure were included...
March 22, 2017: Acta Diabetologica
https://www.readbyqxmd.com/read/28331909/evaluating-the-effect-of-insulin-sensitizers-metformin-and-pioglitazone-alone-and-in-combination-on-women-with-polycystic-ovary-syndrome-an-rct
#18
Seyed Mojtaba Sohrevardi, Fahime Nosouhi, Saeed Hossein Khalilzade, Parichehr Kafaie, Mojgan Karimi-Zarchi, Iman Halvaei, Mehdi Mohsenzadeh
BACKGROUND: Insulin resistance and hyperinsulinemia may play a role in pathogenesis of PCOS. One of the common therapeutic methods is using insulin-sensitizing drugs such as metformin and thiazolidinediones. OBJECTIVE: The purpose was to determine the effect of metformin and pioglitazone on clinical, hormonal and metabolic parameters in women with PCOS. MATERIALS AND METHODS: Eighty four women randomly received one of the following for 3 months: metformin (n=28) (500 mg three times a day), pioglitazone (30 mg daily) (n=28) and combination of both metformin and pioglitazone (n=28) (30 mg/day pioglitazone plus 500 mg metformin three times a day)...
December 2016: International Journal of Reproductive Biomedicine (Yazd, Iran)
https://www.readbyqxmd.com/read/28331855/diabetes-in-hfe-hemochromatosis
#19
REVIEW
James C Barton, Ronald T Acton
Diabetes in whites of European descent with hemochromatosis was first attributed to pancreatic siderosis. Later observations revealed that the pathogenesis of diabetes in HFE hemochromatosis is multifactorial and its clinical manifestations are heterogeneous. Increased type 2 diabetes risk in HFE hemochromatosis is associated with one or more factors, including abnormal iron homeostasis and iron overload, decreased insulin secretion, cirrhosis, diabetes in first-degree relatives, increased body mass index, insulin resistance, and metabolic syndrome...
2017: Journal of Diabetes Research
https://www.readbyqxmd.com/read/28331434/successful-reduction-of-inflammatory-responses-and-arachidonic-acid-cyclooxygenase-2-pathway-in-human-pulmonary-artery-endothelial-cells-by-silencing-adipocyte-fatty-acid-binding-protein
#20
Qian Wang, Guanglin Shi, Ying Teng, Xia Li, Jin Xie, Qin Shen, Caixin Zhang, Songshi Ni, Zhiyuan Tang
BACKGROUND: Adipocyte fatty acid-binding protein, also known as aP2 or fatty acid-binding protein 4 (FABP4), plays an important role in inflammatory and metabolic responses in adipocytes and macrophages. Recent work has demonstrated that macrophage FABP4 integrates inflammatory and lipid metabolic responses, thereby contributing to the development of insulin resistance and atherosclerosis. However, it is not known whether FABP4 in human pulmonary artery endothelial cells(HPAECs) modulates inflammation...
2017: Journal of Inflammation
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