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https://www.readbyqxmd.com/read/28526997/nafld-as-a-sexual-dimorphic-disease-role-of-gender-and-reproductive-status-in-the-development-and-progression-of-nonalcoholic-fatty-liver-disease-and-inherent-cardiovascular-risk
#1
REVIEW
Stefano Ballestri, Fabio Nascimbeni, Enrica Baldelli, Alessandra Marrazzo, Dante Romagnoli, Amedeo Lonardo
Nonalcoholic fatty liver disease (NAFLD) spans steatosis through nonalcoholic steatohepatis, cirrhosis, and hepatocellular carcinoma (HCC) associated with striking systemic features and excess cardiovascular and liver-related mortality. The pathogenesis of NAFLD is complex and multifactorial. Endocrine derangements are closely linked with dysmetabolic traits. For example, in animal and human studies, female sex is protected from dysmetabolism thanks to young individuals' ability to partition fatty acids towards ketone body production rather than very low density lipoprotein (VLDL)-triacylglycerol, and to sex-specific browning of white adipose tissue...
May 19, 2017: Advances in Therapy
https://www.readbyqxmd.com/read/28526391/withdrawal-from-high-carbohydrate-high-saturated-fat-diet-changes-saturated-fat-distribution-and-improves-hepatic-low-density-lipoprotein-receptor-expression-to-ameliorate-metabolic-syndrome-in-rats
#2
Ankita Hazarika, Himadri Kalita, Mohan Chandra Kalita, Rajlakshmi Devi
OBJECTIVE: The "lipid hypothesis" determined that saturated fatty acid (SFA) raises low-density lipoprotein cholesterol, thereby increasing the risk for metabolic syndrome (MetS). The aim of this study was to investigate the effect of subchronic withdrawal from a high-carbohydrate, high-saturated fat (HCHF) diet during MetS with reference to changes in deleterious SFA (C12:0, lauric acid; C14:0, myristic acid; C16:0, palmitic acid; C18:0, stearic acid) distribution in liver, white adipose tissue (WAT), and feces...
June 2017: Nutrition
https://www.readbyqxmd.com/read/28526089/adipose-derived-mesenchymal-stem-cells-from-liposuction-and-resected-fat-are-feasible-sources-for-regenerative-medicine
#3
Sandra Schneider, Marina Unger, Martijn van Griensven, Elizabeth R Balmayor
BACKGROUND: The use of mesenchymal stem cells (MSCs) in research and in regenerative medicine has progressed. Bone marrow as a source has drawbacks because of subsequent morbidities. An easily accessible and valuable source is adipose tissue. This type of tissue contains a high number of MSCs, and obtaining higher quantities of tissue is more feasible. Fat tissue can be harvested using different methods such as liposuction and resection. First, a detailed isolation protocol with complete characterization is described...
May 19, 2017: European Journal of Medical Research
https://www.readbyqxmd.com/read/28525374/the-effect-of-rapamycin-nvp-bez235-aspirin-and-metformin-on-pi3k-akt-mtor-signaling-pathway-of-pik3ca-related-overgrowth-spectrum-pros
#4
Yasuyo Suzuki, Yasushi Enokido, Kenichiro Yamada, Mie Inaba, Kumiko Kuwata, Naoki Hanada, Tsuyoshi Morishita, Seiji Mizuno, Nobuaki Wakamatsu
The phosphatidylinositol 3-kinase (PI3K)/AKT/mTOR signaling pathway is critical for cellular growth and metabolism. Recently, mosaic or segmental overgrowth, a clinical condition caused by heterozygous somatic activating mutations in PIK3CA, was established as PIK3CA-related overgrowth spectrum (PROS). In this study, we report a Japanese female diagnosed with PROS, who presented with hyperplasia of the lower extremities, macrodactyly, multiple lipomatosis, and sparse hair. Sequencing and mutant allele frequency analysis of PIK3CA from affected tissues revealed that the patient had a heterozygous mosaic mutation (c...
May 2, 2017: Oncotarget
https://www.readbyqxmd.com/read/28523599/differential-effects-of-early-life-nutrient-restriction-in-long-lived-ghr-ko-and-normal-mice
#5
Yimin Fang, Samuel McFadden, Justin Darcy, Cristal M Hill, Joshua A Huber, Steve Verhulst, John J Kopchick, Richard A Miller, Liou Y Sun, Andrzej Bartke
There is increasing evidence that growth hormone (GH) and insulin-like growth factor 1 (IGF-1) signaling (collectively referred to as somatotropic signaling) during development has a profound influence on aging and longevity. Moreover, the absence of GH action was shown to modify responses of adult mice to calorie restriction (CR) and other antiaging interventions. It was therefore of interest to determine whether GH resistance in GH receptor knockout (GHR-KO) mice would modify the effects of mild pre-weaning CR imposed by increasing the number of pups in a litter (the so-called litter crowding)...
May 18, 2017: GeroScience
https://www.readbyqxmd.com/read/28522333/development-of-qsars-for-parameterizing-physiology-based-toxicokinetic-models
#6
Dimosthenis Α Sarigiannis, Krystalia Papadaki, Periklis Kontoroupis, Spyros P Karakitsios
A Quantitative Structure Activity Relationship (QSAR) model was developed in order to predict physicochemical and biochemical properties of industrial chemicals of various groups. This model was based on the solvation equation, originally proposed by Abraham. In this work Abraham's solvation model got parameterized using artificial intelligence techniques such as artificial neural networks (ANNs) for the prediction of partitioning into kidney, heart, adipose, liver, muscle, brain and lung for the estimation of the bodyweight-normalized maximal metabolic velocity (Vmax) and the Michaelis - Menten constant (Km)...
May 15, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28522306/the-effects-of-chronic-testosterone-administration-on-body-weight-food-intake-and-adipose-tissue-are-changed-by-estrogen-treatment-in-female-rats
#7
Takeshi Iwasa, Toshiya Matsuzaki, Kiyohito Yano, Rie Yanagihara, Altankhuu Tungalagsuvd, Munkhsaikhan Munkhzaya, Yiliyasi Mayila, Akira Kuwahara, Minoru Irahara
In females, estrogens play pivotal roles in preventing excess body weight (BW) gain. On the other hand, the roles of androgens in female BW, appetite, and energy metabolism have not been fully examined. We hypothesized that androgens' effects on food intake (FI) and BW regulation change according to the estrogens' levels. To evaluate this hypothesis, the effects of chronic testosterone administration in ovariectomized (OVX) female rats with or without estradiol supplementation were examined in this study. Chronic testosterone administration decreased BW, FI, white adipose tissue (WAT) weight, and adipocyte size in OVX rats, whereas it increased BW, WAT weight, and adipocyte size in OVX with estradiol-administered rats...
May 17, 2017: Hormones and Behavior
https://www.readbyqxmd.com/read/28521866/neovascular-deterioration-impaired-nadph-oxidase-and-inflammatory-cytokine-expression-in-adipose-derived-multipotent-cells-from-subjects-with-metabolic-syndrome
#8
Wilfredo Oliva-Olivera, Said Lhamyani, Leticia Coín-Aragüez, Daniel Castellano-Castillo, Juan Alcaide-Torres, Elena María Yubero-Serrano, Rajaa El Bekay, Francisco José Tinahones
OBJECTIVE: Expansion of adipose tissue depends on the growth of its vascular network and it has been shown that adipose tissue dysfunction in obese subjects with the metabolic syndrome is associated with decreased angiogenesis. However, some subjects with a high body mass index do not develop metabolic abnormalities associated with obesity. In this study we examined the neovascular properties, expression levels of proteins involved in cellular redox balance and inflammatory cytokines in adipose-derived multipotent mesenchymal cells (ASCs) of subjects with different metabolic profiles...
June 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/28521862/bile-acid-binding-resin-prevents-fat-accumulation-through-intestinal-microbiota-in-high-fat-diet-induced-obesity-in-mice
#9
Yukie Kusumoto, Junichiro Irie, Kaho Iwabu, Hirotsune Tagawa, Arata Itoh, Mari Kato, Nana Kobayashi, Kumiko Tanaka, Rieko Kikuchi, Masataka Fujita, Yuya Nakajima, Kohkichi Morimoto, Taichi Sugizaki, Satoru Yamada, Toshihide Kawai, Mitsuhiro Watanabe, Yuichi Oike, Hiroshi Itoh
BACKGROUND: Bile acid binding resin (BAR) absorbs intestinal bile acids, and improves obesity and metabolic disorders, but the precise mechanism remains to be clarified. Recent findings reveal that obesity is associated with skewed intestinal microbiota. Thus, we investigated the effect of BAR on intestinal microbiota and the role of microbiota in the prevention of obesity in high-fat diet-induced obesity in mice. PROCEDURES: Male Balb/c mice were fed a low-fat diet (LFD), high-fat diet (HFD), or HFD with BAR (HFD+BAR), and then metabolic parameters, caecal microbiota, and metabolites were investigated...
June 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/28521687/diet-and-contaminants-driving-the-rise-to-obesity-epidemics
#10
Agostino Di Ciaula, Piero Portincasa
The obesity epidemic is spreading worldwide without reversal trend and despite specific policies oriented to dietary habits and lifestyle, which seem to have modest effects. Genetic factors only partly explain the rise, whereas environmental factors seem to play a key role, mainly by gene-environment interactions through epigenetic mechanisms. A number of animal and human studies point to maternal diet, intestinal microbiota and chemicals introduced as contaminants with food, all factors able to increase the risk of obesity...
May 17, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28521681/effects-of-diets-on-adipose-tissue
#11
Silvia Ezquerro, Amaia Rodríguez, Piero Portincasa, Gema Frühbeck
Obesity is a major health problem that has become a global epidemic. Overweight and obesity are commonly associated with the development of several pathologies, such as insulin resistance, cardiovascular diseases, sleep apnea and several types of cancer, which can lead to further morbidity and mortality. An increased abdominal adiposity renders overweight and obese individuals more prone to metabolic and cardiovascular problems. In this sense, excess adiposity leads to several changes in the biology, morphology and function of the adipose tissue, such as adipocyte hypertrophy and hyperplasia, adipose tissue inflammation and fibrosis and an impaired secretion of adipokines, contributing to the onset of obesity-related co-morbidities...
May 17, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28520813/pancreatic-fat-content-by-magnetic-resonance-imaging-in-subjects-with-prediabetes-diabetes-and-controls-from-a-general-population-without-cardiovascular-disease
#12
Sophia D Heber, Holger Hetterich, Roberto Lorbeer, Christian Bayerl, Jürgen Machann, Sigrid Auweter, Corinna Storz, Christopher L Schlett, Konstantin Nikolaou, Maximilian Reiser, Annette Peters, Fabian Bamberg
BACKGROUND/OBJECTIVE: Despite the relevance of pancreatic fat content in the development of metabolic diseases, its association with impaired glucose metabolism, diabetes, and other adipose tissue compartments remains unclear. Thus, we determined differences in pancreatic fat content by magnetic resonance imaging (MRI) between subjects with prediabetes, diabetes, and normal controls in a cohort from the general population. METHODS: Subjects without history of cardiovascular disease with established diabetes or prediabetes as well as normal controls were included and underwent whole-body MRI on a 3T scanner...
2017: PloS One
https://www.readbyqxmd.com/read/28520765/an-integrative-analysis-of-tissue-specific-transcriptomic-and-metabolomic-responses-to-short-term-dietary-methionine-restriction-in-mice
#13
Sujoy Ghosh, Laura A Forney, Desiree Wanders, Kirsten P Stone, Thomas W Gettys
Dietary methionine restriction (MR) produces a coordinated series of transcriptional responses in peripheral tissues that limit fat accretion, remodel lipid metabolism in liver and adipose tissue, and improve overall insulin sensitivity. Hepatic sensing of reduced methionine leads to induction and release of fibroblast growth factor 21 (FGF21), which acts centrally to increase sympathetic tone and activate thermogenesis in adipose tissue. FGF21 also has direct effects in adipose to enhance glucose uptake and oxidation...
2017: PloS One
https://www.readbyqxmd.com/read/28520584/eating-disorders-and-bone-metabolism-in-women
#14
Lauren Robinson, Nadia Micali, Madhusmita Misra
PURPOSE OF REVIEW: Eating Disorders are psychiatric disorders associated with a high risk for low bone mineral density (BMD) and fractures. Low BMD is a consequence of undernutrition, changes in body composition, and hormonal alterations. This review summarizes recent findings regarding novel strategies for assessing bone outcomes in patients with eating disorders, factors contributing to altered bone metabolism, and possible therapeutic strategies. RECENT FINDINGS: Emerging research in this field suggests that not only anorexia nervosa, but also bulimia nervosa results in lower BMD compared to controls...
May 16, 2017: Current Opinion in Pediatrics
https://www.readbyqxmd.com/read/28518147/survivin-a-key-player-in-cancer-progression-increases-in-obesity-and-protects-adipose-tissue-stem-cells-from-apoptosis
#15
Miriam Ejarque, Victòria Ceperuelo-Mallafré, Carolina Serena, Gisela Pachón, Yaiza Núñez-Álvarez, Margarida Terrón-Puig, Enrique Calvo, Catalina Núñez-Roa, Wilfredo Oliva-Olivera, Francisco J Tinahones, Miguel Angel Peinado, Joan Vendrell, Sonia Fernández-Veledo
Adipose tissue (AT) has a central role in obesity-related metabolic imbalance through the dysregulated production of cytokines and adipokines. In addition to its known risk for cardiovascular disease and diabetes, obesity is also a major risk for cancer. We investigated the impact of obesity for the expression of survivin, an antiapoptotic protein upregulated by adipokines and a diagnostic biomarker of tumor onset and recurrence. In a cross-sectional study of 111 subjects classified by body mass index, circulating levels of survivin and gene expression in subcutaneous AT were significantly higher in obese patients and positively correlated with leptin...
May 18, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28517037/serum-phosphate-is-related-to-adiposity-in-healthy-adults
#16
Emma O Billington, Greg D Gamble, Sarah Bristow, Ian R Reid
BACKGROUND: Inorganic phosphate is a crucial component of cellular energy metabolism. We have identified an inverse relationship between serum phosphate concentration and fat mass in a cohort of healthy men. This study reports those data and determines whether this association is present in two female populations. METHODS: Cross-sectional data from three independent cohorts, consisting of healthy adult males (Male Cohort, n=323) and healthy postmenopausal women (Female Cohort 1, n=185; and Female Cohort 2, n=1471), are reported...
May 18, 2017: European Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28516150/proteome-dataset-of-subcutaneous-adipose-tissue-obtained-from-late-pregnant-dairy-cows-during-summer-heat-stress-and-winter-seasons
#17
M Zachut, G Kra, L Livshitz, Y Portnick, S Yakoby, G Friedlander, Y Levin
Adipose tissue has a central role in the regulation of metabolism in dairy cows, and many proteins expressed in this tissue are involved in metabolic responses to stress (Peinado et al., 2012) [1]. Environmental heat stress is one of the main stressors limiting production in dairy cattle (Fuquay, 1981; West, 2003) [2], [3], and there is a complex interaction between heat stress and the transition period from late pregnancy to onset of lactation, which is manifested in heat-stressed late-gestation cows (Tao and Dahl, 2013) [4]...
June 2017: Data in Brief
https://www.readbyqxmd.com/read/28515909/metabolic-role-of-fibroblast-growth-factor-21-in-liver-adipose-and-nervous-system-tissues
#18
Xiaolong Lin, Yuan Bo Liu, Huijun Hu
The hepatokine fibroblast growth factor 21 (FGF21) is a novel polypeptide ligand, which is involved in glucose and lipid metabolism, and contributes significantly to lowering body weight and enhancing insulin sensitivity. A large number of pre-clinical and clinical results demonstrate that FGF21 is a potential drug target for treating obesity and type 2 diabetes mellitus. In the present review, the tissue specific actions and molecular mechanisms of FGF21 are discussed with a focus on the liver, adipose tissue and nervous system, as well as investigating the outcomes of clinical trials of FGF21, with the aim of interpreting and delineating the complexity physiology of FGF21...
May 2017: Biomedical Reports
https://www.readbyqxmd.com/read/28515438/mitochondrial-retrograde-signaling-connects-respiratory-capacity-to-thermogenic-gene-expression
#19
Minwoo Nam, Thomas E Akie, Masato Sanosaka, Siobhan M Craige, Shashi Kant, John F Keaney, Marcus P Cooper
Mitochondrial respiration plays a crucial role in determining the metabolic state of brown adipose tissue (BAT), due to its direct roles in thermogenesis, as well as through additional mechanisms. Here, we show that respiration-dependent retrograde signaling from mitochondria to nucleus contributes to genetic and metabolic reprogramming of BAT. In mouse BAT, ablation of LRPPRC (LRP130), a potent regulator of mitochondrial transcription and respiratory capacity, triggers down-regulation of thermogenic genes, promoting a storage phenotype in BAT...
May 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28515350/fam3a-enhances-adipogenesis-of-3t3-l1-preadipocytes-via-activation-of-atp-p2-receptor-akt-signaling-pathway
#20
Yujing Chi, Jing Li, Na Li, Zhenzhen Chen, Liping Ma, Weikang Peng, Xiuying Pan, Mei Li, Weidong Yu, Xiangjun He, Bin Geng, Qinghua Cui, Yulan Liu, Jichun Yang
FAM3A plays important roles in regulating hepatic glucose/lipid metabolism and the proliferation of VSMCs. This study determined the role and mechanism of FAM3A in the adipogenesis of 3T3-L1 preadipocytes. During the adipogenesis of 3T3-L1 preadipocytes, FAM3A expression was significantly increased. FAM3A overexpression enhanced 3T3-L1 preadipocyte adipogenesis with increased phosphorylated Akt (pAkt) level, whereas FAM3A silencing inhibited 3T3-L1 preadipocyte adipogenesis with reduced pAkt level. Moreover, FAM3A silencing reduced the expression and secretion of adipokines in 3T3-L1 cells...
May 3, 2017: Oncotarget
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