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https://www.readbyqxmd.com/read/28212318/alcohol-%C3%A2-adipose%C3%A2-tissue%C3%A2-and%C3%A2-lipid%C3%A2-dysregulation
#1
Jennifer L Steiner, Charles H Lang
Chronic alcohol consumption perturbs lipid metabolism as it increases adipose tissue lipolysis and leads to ectopic fat deposition within the liver and the development of alcoholic fatty liver disease. In addition to the recognition of the role of adipose tissue derived fatty acids in liver steatosis, alcohol also impacts other functions of adipose tissue and lipid metabolism. Lipid balance in response to long-term alcohol intake favors adipose tissue loss and fatty acid efflux as lipolysis is upregulated and lipogenesis is either slightly decreased or unchanged...
February 16, 2017: Biomolecules
https://www.readbyqxmd.com/read/28211464/molecular-basis-of-abhd5-lipolysis-activation
#2
Matthew A Sanders, Huamei Zhang, Ljiljana Mladenovic, Yan Yuan Tseng, James G Granneman
Alpha-beta hydrolase domain-containing 5 (ABHD5), the defective gene in human Chanarin-Dorfman syndrome, is a highly conserved regulator of adipose triglyceride lipase (ATGL)-mediated lipolysis that plays important roles in metabolism, tumor progression, viral replication, and skin barrier formation. The structural determinants of ABHD5 lipolysis activation, however, are unknown. We performed comparative evolutionary analysis and structural modeling of ABHD5 and ABHD4, a functionally distinct paralog that diverged from ABHD5 ~500 million years ago, to identify determinants of ABHD5 lipolysis activation...
February 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28209193/up601-a-standardized-botanical-composition-composed-of-morus-alba-yerba-mate-and-magnolia-officinalis-for-weight-loss
#3
Mesfin Yimam, Ping Jiao, Mei Hong, Lidia Brownell, Young-Chul Lee, Eu-Jin Hyun, Hyun-Jin Kim, Jeong-Bum Nam, Mi-Ran Kim, Qi Jia
BACKGROUND: The prevalence of obesity is surging in an alarming rate all over the world. Pharmaceutical drugs are considered potential adjunctive therapy to lifestyle modification. However, for most, besides being too expensive, their long term usages are hindered by their severe adverse effects. Here we describe the effect of UP601, a standardized blend of extracts from Morus alba, Yerba mate and Magnolia officinalis, in modulating a number of obesity-related phenotypic and biochemical markers in a high-fat high-fructose (HFF)-induced C57BL/6J mouse model of obesity...
February 16, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28207010/advances-in-minimally-invasive-and-noninvasive-treatments-for-submental-fat
#4
Joanna Dong, Yasmin Amir, Gary Goldenberg
Submental fat (SMF) accumulation is a cosmetically distressing concern for which there have been recent advances in minimally invasive and noninvasive therapeutic options. In this article, we review the newest treatments available for SMF, including laser-assisted lipolysis (LAL), radiofrequency (RF)-assisted lipolysis, deoxycholic acid (DCA), and noninvasive devices. These treatments provide additional options for patients seeking nonsurgical approaches to treatment of SMF.
January 2017: Cutis; Cutaneous Medicine for the Practitioner
https://www.readbyqxmd.com/read/28202393/role-of-a1-and-a2a-adenosine-receptor-agonists-in-adipose-tissue-inflammation-induced-by-obesity-in-mice
#5
Caroline Candida DeOliveira, Cintia Rabelo E Paiva Caria, Erica Martins Ferreira Gotardo, Marcelo Lima Ribeiro, Alessandra Gambero
Adenosine receptors are expressed in adipose tissue and control physiological and pathological events such as lipolysis and inflammation. The aim of this study was to evaluate the activity of N(6)-cyclopentyladenosine (CPA), a potent and selective A1 adenosine receptor agonist; 2-p-(2-carboxyethyl)phenethylamino-5'-N-ethylcarboxyamidoadenosine hydrochloride (CGS-21680), an A2A adenosine receptor agonist; and 5'-N-ethylcarboxamidoadenosine (NECA), a potent non-selective adenosine receptor agonist on adipose tissue inflammatory alterations induced by obesity in mice...
February 12, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28194887/atgl-deficiency-induces-podocyte-apoptosis-and-leads-to-glomerular-filtration-barrier-damage
#6
Wen Chen, Youzhao Jiang, Jian Han, Jiongyu Hu, Ting He, Tiantian Yan, Huang Na, Qiong Zhang, Hao Mei, Yong Liao, Yuesheng Huang, Bing Chen
Abnormal lipid metabolism, renal lipid accumulation and lipotoxicity are associated with the pathological features of glomerulopathy. However, the mechanisms by which lipid accumulation leads to the development or progression of this disease have not been fully elucidated. In this work, we have identified a role for the rate-limiting enzyme in lipolysis, adipose triglyceride lipase (ATGL; also called patatin-like phospholipase domain-containing protein 2(PNPLP2), in renal lipid metabolism and kidney disease...
February 14, 2017: FEBS Journal
https://www.readbyqxmd.com/read/28194651/kisspeptin-10-inhibits-proliferation-and-regulates-lipolysis-and-lipogenesis-processes-in-3t3-l1-cells-and-isolated-rat-adipocytes
#7
Ewa Pruszyńska-Oszmałek, Paweł A Kołodziejski, Maciej Sassek, Joanna H Sliwowska
INTRODUCTION: Kisspeptin, which is encoded by the KISS1 gene and acts via GPR54, plays a role in the regulation of reproductive functions. Expression of KISS1 and GRPR54 has been found in peripheral tissues, including adipose tissue, and was shown to be influenced by metabolic status. PURPOSE: We hypothesized that kisspeptin could be involved in regulation of lipid metabolism in the mouse 3T3-L1 cell line and in isolated rat adipocytes. METHODS: First, we characterized expression profiles of KISS1 and GPR54 mRNA and proteins in adipose cells isolated from male rats...
February 13, 2017: Endocrine
https://www.readbyqxmd.com/read/28194261/gelidium-amansii-extract-ameliorates-obesity-by-down-regulating-adipogenic-transcription-factors-in-diet-induced-obese-mice
#8
Ji-Hye Kang, Hyun-Ah Lee, Hak-Ju Kim, Ji-Sook Han
BACKGROUND/OBJECTIVES: In this study, we investigated whether Gelidium amansii extract (GAE) ameliorates obesity in diet-induced obese (DIO) mice. MATERIALS/METHODS: The mice were maintained on a high-fat diet (HD) for 5 weeks to generate the DIO mouse model. And then mice fed HD plus 0.5% (GAE1), 1% (GAE2) or 2% (GAE3) for 8 weeks. RESULTS: After the experimental period, GAE-supplemented groups were significantly lower than the HD group in body weight gain and liver weight...
February 2017: Nutrition Research and Practice
https://www.readbyqxmd.com/read/28194257/is-p53-involved-in-tissue-specific-insulin-resistance-formation
#9
REVIEW
Justyna Strycharz, Jozef Drzewoski, Janusz Szemraj, Agnieszka Sliwinska
p53 constitutes an extremely versatile molecule, primarily involved in sensing the variety of cellular stresses. Functional p53 utilizes a plethora of mechanisms to protect cell from deleterious repercussions of genotoxic insults, where senescence deserves special attention. While the impressive amount of p53 roles has been perceived solely by the prism of antioncogenic effect, its presence seems to be vastly connected with metabolic abnormalities underlain by cellular aging, obesity, and inflammation. p53 has been found to regulate multiple biochemical processes such as glycolysis, oxidative phosphorylation, lipolysis, lipogenesis, β-oxidation, gluconeogenesis, and glycogen synthesis...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28194019/il-25-stimulates-m2-macrophage-polarization-and-thereby-promotes-mitochondrial-respiratory-capacity-and-lipolysis-in-adipose-tissues-against-obesity
#10
Juan Feng, Lingyi Li, Zhiying Ou, Qiao Li, Baoyong Gong, Zhenxian Zhao, Weiwei Qi, Ti Zhou, Jun Zhong, Weibin Cai, Xia Yang, Aiping Zhao, Guoquan Gao, Zhonghan Yang
Obesity and associated metabolic diseases are characterized by a chronic low-grade inflammatory state with the infiltration of many inflammatory cells, especially macrophages. Immune molecules, including some cytokines, have a close relationship with metabolism. Interleukin (IL)-25 is a member of the IL-17 cytokine family that can regulate macrophages and alleviate some metabolic dysfunction; however, its role and mechanisms in lipid metabolism remain to be extensively clarified. Human serum and liver biopsy specimens, high-fat diet-induced obesity mice and DB/DB (Lepr-/-) animal models were used to examine IL-25 expression in obesity and nonalcoholic fatty liver diseases (NAFLD)...
February 13, 2017: Cellular & Molecular Immunology
https://www.readbyqxmd.com/read/28193229/involvement-of-fatty-acid-synthase-in-dengue-virus-infection
#11
Natthida Tongluan, Suwipa Ramphan, Phitchayapak Wintachai, Janthima Jaresitthikunchai, Sarawut Khongwichit, Nitwara Wikan, Supoth Rajakam, Sutee Yoksan, Nuttaporn Wongsiriroj, Sittiruk Roytrakul, Duncan R Smith
BACKGROUND: The mosquito transmitted Dengue virus (DENV) remains a significant public health problem in many tropical and subtropical countries. Increasing evidence has suggested that during the infection process cellular lipids play important roles at several stages of the replication cycle. This study sought to characterize the changes in lipid metabolism gene expression and investigated the role of one enzyme, fatty acid synthase, in DENV infection. METHODS: Transcriptional profiles of genes associated with lipid metabolism were evaluated by real-time PCR after infection of different cell lines (HepG2 and HEK293T/17) and with different DENVs (laboratory adapted and low passage)...
February 13, 2017: Virology Journal
https://www.readbyqxmd.com/read/28190525/central-action-of-xenin-affects-the-expression-of-lipid-metabolism-related-genes-and-proteins-in-mouse-white-adipose-tissue
#12
Sharma Bhavya, Pei San Lew, Tooru M Mizuno
Xenin is a gastrointestinal hormone that reduces food intake when administered centrally and it has been hypothesized that central action of xenin participates in the regulation of whole-body metabolism. The present study was performed to address this hypothesis by investigating the central effect of xenin on the expression of genes and proteins that are involved in the regulation of lipid metabolism in white adipose tissue (WAT). Male obese ob/ob mice received intracerebroventricular (i.c.v.) injections of xenin (5μg) twice 12h apart...
February 9, 2017: Neuropeptides
https://www.readbyqxmd.com/read/28186107/blubber-transcriptome-response-to-acute-stress-axis-activation-involves-transient-changes-in-adipogenesis-and-lipolysis-in-a-fasting-adapted-marine-mammal
#13
J I Khudyakov, C D Champagne, L M Meneghetti, D E Crocker
Stress can compromise an animal's ability to conserve metabolic stores and participate in energy-demanding activities that are critical for fitness. Understanding how wild animals, especially those already experiencing physiological extremes (e.g. fasting), regulate stress responses is critical for evaluating the impacts of anthropogenic disturbance on physiology and fitness, key challenges for conservation. However, studies of stress in wildlife are often limited to baseline endocrine measurements and few have investigated stress effects in fasting-adapted species...
February 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28183452/controversies-in-the-management-of-hyperglycaemic-emergencies-in-adults-with-diabetes
#14
REVIEW
Luís Cardoso, Nuno Vicente, Dírcea Rodrigues, Leonor Gomes, Francisco Carrilho
Hyperglycaemic emergencies are associated with significant morbi-mortality and healthcare costs. Management consists on fluid replacement, insulin therapy, and electrolyte correction. However, some areas of patient management remain debatable. In patients without respiratory failure or haemodynamic instability, arterial and venous pH and bicarbonate measurements are comparable. Fluid choice varies upon replenishment phase and patient's condition. If patient is severely hypovolaemic, normal saline solution should be the first option...
March 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/28182091/potential-role-of-angptl4-in-the-cross-talk-between-metabolism-and-cancer-through-ppar-signaling-pathway
#15
REVIEW
Laura La Paglia, Angela Listì, Stefano Caruso, Valeria Amodeo, Francesco Passiglia, Viviana Bazan, Daniele Fanale
The angiopoietin-like 4 (ANGPTL4) protein belongs to a superfamily of secreted proteins structurally related to factors modulating angiogenesis known as angiopoietins. At first, ANGPTL4 has been identified as an adipokine exclusively involved in lipid metabolism, because of its prevalent expression in liver and adipose tissue. This protein regulates lipid metabolism by inhibiting lipoprotein lipase (LPL) activity and stimulating lipolysis of white adipose tissue (WAT), resulting in increased levels of plasma triglycerides (TG) and fatty acids...
2017: PPAR Research
https://www.readbyqxmd.com/read/28179059/phenolics-and-neolignans-isolated-from-the-fruits-of-juglans-mandshurica-maxim-and-their-effects-on-lipolysis-in-adipocytes
#16
SeonJu Park, Nanyoung Kim, Guijae Yoo, Sang-Nam Kim, Hyun-Jung Kwon, Kiwon Jung, Dong-Chan Oh, Yun-Hee Lee, Seung Hyun Kim
Juglans mandshurica Maxim. (Juglandaceae) is a traditional folk medicine used for treatment of dermatosis and to relieve aches in Korea and China. In this study, eight compounds, along with six known compounds, were isolated from the fruit of J. mandshurica. Among the six known compounds, the absolute configuration of two compounds were determined. The structures of compounds were determined on the basis of extensive spectroscopic methods, including 1D and 2D NMR and CD spectroscopic data. All isolated compounds were tested for their lipolytic activities in differentiated adipocytes using C3H10T1/2 mouse embryonic fibroblasts...
February 5, 2017: Phytochemistry
https://www.readbyqxmd.com/read/28178390/metabolic-and-hemodynamic-effects-of-sodium-dependent-glucose-co-transporter-2-inhibitors-on-cardio-renal-protection-in-the-treatment-of-patients-with-type-2-diabetes-mellitus
#17
REVIEW
Atsunori Kashiwagi, Hiroshi Maegawa
The specific Na+/glucose co-transporter 2 inhibitors (SGLT2 inhibitors) inhibit glucose reabsorption in proximal renal tubular cells, and both fasting and postprandial glucose significantly decrease due to urinary glucose loss. As a result, pancreatic β-cell function and peripheral insulin action significantly improve with relief from glucose toxicity. Furthermore, whole body energy metabolism changes to relative glucose deficiency and triggers increased lipolysis in fat cells, and fatty acid oxidation and then ketone body production in the liver during treatment with SGLT2 inhibitors...
February 8, 2017: Journal of Diabetes Investigation
https://www.readbyqxmd.com/read/28177691/caffeine-intake-increases-plasma-ketones-an-acute-metabolic-study-in-humans
#18
Camille Vandenberghe, Valerie St-Pierre, Alexandre Courchesne-Loyer, Marie Hennebelle, Christian-Alexandre Castellano, Stephen C Cunnane
Brain glucose uptake declines during aging and is significantly impaired in Alzheimer's disease. Ketones are the main alternative brain fuel to glucose so they represent a potential approach to compensate for the brain glucose reduction. Caffeine is of interest as a potential ketogenic agent owing to its actions on lipolysis/ lipid oxidation but whether it is ketogenic in humans is unknown. This study aimed to evaluate the acute ketogenic effect of two doses of caffeine in healthy adults (2.5; 5.0 mg/kg) during a 4-hour metabolic study period...
November 25, 2016: Canadian Journal of Physiology and Pharmacology
https://www.readbyqxmd.com/read/28177189/acute-physiological-effects-of-glucocorticoids-on-fuel-metabolism-in-humans-are-permissive-but-not-direct
#19
Roland H Stimson, Anna J Anderson, Lynne E Ramage, David P Macfarlane, Andrew C de Beaux, Damian J Mole, Ruth Andrew, Brian R Walker
BACKGROUND AND AIMS: The effects of glucocorticoids on fuel metabolism are complex. Acute glucocorticoid excess promotes lipolysis but chronic glucocorticoid excess causes visceral fat accumulation. We hypothesized that interactions between cortisol with insulin and adrenaline accounts for these conflicting results. We tested the effect of cortisol on lipolysis and glucose production with and without insulin and adrenaline in humans both in vivo and in vitro. MATERIALS AND METHODS: Twenty healthy men were randomised to low and high insulin groups (both n = 10)...
February 8, 2017: Diabetes, Obesity & Metabolism
https://www.readbyqxmd.com/read/28173868/docosahexaenoic-acid-increases-accumulation-of-adipocyte-triacylglycerol-through-up-regulation-of-lipogenic-gene-expression-in-pigs
#20
Chao-Wei Huang, Yu-Jen Chen, Jui-Ting Yang, Ching-Yi Chen, Kolapo M Ajuwon, Shuen-Ei Chen, Nan-Wei Su, Yu-Shan Chen, Harry J Mersmann, Shih-Torng Ding
BACKGROUND: Changing dietary fatty acid composition in modern diet influences the prevalence of obesity. Increasing evidences suggest favorable effects of n-3 PUFA for protecting against obesity and the metabolic syndrome. However, the regulation of n-3 PUFA in adipose is still unclear. Thus, this study addressed metabolism of different dietary fats in the adipose tissue of porcine model. METHODS: Eight-week-old cross-bred pigs were randomly assigned to three groups and fed a 2% fat diet for 30 days from either soybean oil (SBO), docosahexaenoic acid (DHA) or beef tallow...
February 7, 2017: Lipids in Health and Disease
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