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Visceral adiposity fat

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https://www.readbyqxmd.com/read/28324283/prognostic-value-of-computed-tomography-measured-parameters-of-body-composition-in-primary-operable-gastrointestinal-cancers
#1
Douglas Black, Craig Mackay, George Ramsay, Zaid Hamoodi, Shayanthan Nanthakumaran, Kenneth G M Park, Malcolm A Loudon, Colin H Richards
BACKGROUND: Previous reports suggest that body composition parameters can be used to predict outcomes for patients with gastrointestinal (GI) cancers. However, evidence for an association with long-term survival is conflicting, with much of the data derived from patients with advanced disease. This study examined the effect of body composition on survival in primary operable GI cancer. METHODS: Patients with resectable adenocarcinoma of the GI tract (esophagus, stomach, colon, rectum) between 2006 and 2014 were identified from a prospective database...
March 21, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/28324021/endogenous-calcitonin-gene-related-peptide-regulates-lipid-metabolism-and-energy-homeostasis-in-male-mice
#2
Tian Liu, Akiko Kamiyoshi, Takayuki Sakurai, Yuka Ichikawa-Shindo, Hisaka Kawate, Lei Yang, Megumu Tanaka, Xian Xian, Akira Imai, Liuyu Zhai, Kazutaka Hirabayashi, Kun Dai, Keiya Tanimura, Teng Liu, Nanqi Cui, Kyoko Igarashi, Akihiro Yamauchi, Takayuki Shindo
Calcitonin gene-related peptide (CGRP) is a bioactive peptide produced by alternative splicing of the primary transcript of the calcitonin/CGRP gene. CGRP is largely distributed in the cardiovascular and nervous systems, where it acts as a regulatory factor. CGRP is also expressed in organs and tissues involved in metabolic regulation, including white adipose tissue (WAT), where its function is largely unknown. In this study, we examined the effects of endogenous CGRP on metabolic function. When we administered a high-fat diet to CGRP knockout (CGRP-/-) and wild-type (WT) mice for 10 weeks, we observed that food intake did not differ between the two groups, but body weight and visceral fat weight were significantly lower in CGRP-/- mice...
January 20, 2017: Endocrinology
https://www.readbyqxmd.com/read/28324016/cardiorespiratory-fitness-and-adiposity-as-determinants-of-metabolic-health-pooled-analysis-of-two-twin-cohorts
#3
Sakari Jukarainen, René Holst, Christine Dalgård, Päivi Piirilä, Jesper Lundbom, Antti Hakkarainen, Nina Lundbom, Aila Rissanen, Jaakko Kaprio, Kirsten Ohm Kyvik, Thorkild I A Sørensen, Kirsi H Pietiläinen
Context: The joint effects of cardiorespiratory fitness and body composition on metabolic health are not well known. Objective: To examine the associations of cardiorespiratory fitness (CRF), fat free mass index (FFMI) and fat mass index (FMI) with metabolic health in individual twins and controlling for genetic and shared environmental effects by studying monozygotic intrapair differences. Design, setting & participants: Two cross-sectional samples of healthy adult monozygotic and dizygotic twins were drawn from population-based Danish and Finnish national twin registries (n=996 and n=309)...
January 23, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28324004/bone-turnover-is-suppressed-in-insulin-resistance-independent-of-adiposity
#4
K T Tonks, C P White, J R Center, D Samocha-Bonet, J R Greenfield
Context: The contribution of insulin resistance vs. adiposity to bone mineral density (BMD), bone turnover and fractures in humans remains unclear. Objective: Evaluate BMD and bone turnover markers (BTM) in lean (n=18) and overweight/obese individuals with (n=17) and without type 2 diabetes (n=34, deemed insulin-sensitive [Obsensitive, n=15] or insulin-resistant [Obresistant, n=19] by HOMA-IR). Design: Observational study. Outcome measures: Insulin sensitivity assessed by hyperinsulinemic-euglycemic clamp; whole body BMD and fat mass (FM) by DXA; and BTM (osteocalcin [OC], procollagen type-1 propeptide [P1NP] and collagen type-1 cross-linked C-telopeptide [CTx]) fasting and during clamp hyperinsulinemia...
January 23, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28323935/association-of-in-vivo-adipose-tissue-cellular-kinetics-with-markers-of-metabolic-health-in-humans
#5
Ursula A White, Mark D Fitch, Robbie A Beyl, Marc K Hellerstein, Eric Ravussin
Context: Adipose tissue expansion occurs by hypertrophy and hyperplasia. Impaired hyperplasia, or adipogenesis, has been associated with obesity-related diseases. The cellular mechanisms underlying in vivo adipose cell turnover are not elucidated. Objective: We previously reported differences in in vivo cellular kinetics between the subcutaneous abdominal (scABD) and femoral (scFEM) depots using an 8-week incorporation of deuterium in women with obesity. We have now examined how in vivo kinetics correlate with markers of metabolic health...
March 2, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28319586/short-term-exercise-training-alters-leukocyte-chemokine-receptors-in-obese-adults
#6
Julianne C Barry, Svetlana Simtchouk, Cody Durrer, Mary E Jung, Jonathan P Little
Obesity is characterized by chronic low-grade inflammation driven by activation and tissue infiltration of circulating leukocytes. Although exercise has anti-inflammatory effects, the impact of exercise on mediators of leukocyte migration is unclear. PURPOSE: To determine the impact of high intensity interval training (HIIT) versus moderate intensity continuous training (MICT), in the absence of weight/fat loss, on circulating chemokines and leukocyte chemokine receptors. METHODS: Thirty-seven inactive obese adults were randomized to two weeks (10 sessions) of HIIT or MICT with fasting blood samples collected before and after training...
March 18, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28317297/cardiometabolic-risk-factors-in-type-2-diabetes-with-high-fat-and-low-muscle-mass-at-baseline-and-in-response-to-exercise
#7
Tasuku Terada, Normand G Boulé, Mary Forhan, Carla M Prado, Glen P Kenny, Denis Prud'homme, Eiji Ito, Ronald J Sigal
OBJECTIVE: To examine the interplay between high fat and low muscle mass on cardiometabolic risk factors at baseline and in response to exercise in type 2 diabetes. METHODS: Using baseline percent body fat and skeletal muscle mass index, 248 participants were divided into high fat versus low fat and low muscle versus high muscle. Linear mixed models were used to examine the main effects of fat mass and muscle mass and their interaction on baseline cardiometabolic risk factors and changes in risk factors in response to 6-month exercise training...
March 20, 2017: Obesity
https://www.readbyqxmd.com/read/28315175/associations-of-adipose-and-muscle-tissue-parameters-at-colorectal-cancer-diagnosis-with-long-term-health-related-quality-of-life
#8
Eline H van Roekel, Martijn J L Bours, Malou E M Te Molder, José J L Breedveld-Peters, Steven W M Olde Damink, Leo J Schouten, Silvia Sanduleanu, Geerard L Beets, Matty P Weijenberg
PURPOSE: Increased visceral adiposity (visceral obesity) and muscle wasting (sarcopenia) at colorectal cancer (CRC) diagnosis, quantified by computed tomography (CT) image analysis, have been unfavorably associated with short-term clinical outcomes and survival, but associations with long-term health-related quality of life (HRQoL) have not been investigated. We studied associations of visceral adiposity, muscle fat infiltration, muscle mass, and sarcopenia at CRC diagnosis with HRQoL 2-10 years post-diagnosis...
March 17, 2017: Quality of Life Research
https://www.readbyqxmd.com/read/28315007/central-obesity-and-risks-of-cardiovascular-events-and-mortality-in-prevalent-hemodialysis-patients
#9
Heba Wahid El Said, Osama Mahmoud Mohamed, Tamer Wahid El Said, Ahmed Bahaa El Serwi
BACKGROUND: To date, no attempt has been made to assess the best anthropometric method for defining abdominal adiposity in hemodialysis (HD) patients or to determine whether the quantity of intra-abdominal fat relates to morbidity and mortality in that population. We aimed to describe the prevalence of central obesity in HD patients and to investigate the relationship between central obesity assessed by anthropometric variables, and composite outcomes, cardiovascular morbidity and mortality among HD patients and whether this parameter correlates with intra-abdominal fat assessed by computed tomography scan (CT scan)...
March 17, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28299640/the-role-of-transplanted-visceral-fat-from-the-long-lived-growth-hormone-receptor-knockout-mice-on-insulin-signaling
#10
Mohammed T Bennis, Augusto Schneider, Berta Victoria, Andrew Do, Denise S Wiesenborn, Lina Spinel, Adam Gesing, John J Kopchick, Shadab A Siddiqi, Michal M Masternak
Growth hormone receptor knockout mice (GHRKO) are characterized by high insulin sensitivity and extended lifespan. Interestingly, the secretory activity of visceral fat in GHRKO mice is altered, stimulating whole body insulin sensitivity. In this study, we transplanted normal (N) mice with visceral fat pads from GHRKO or N mice to determine the role of visceral fat on the insulin signaling. We found that the transplant of visceral fat from GHRKO mice to N mice (N-GHRKO) improved whole body insulin sensitivity when comparing with sham-operated mice (N-S) and with mice that received visceral fat from N mice (N-N)...
February 2017: Geroscience
https://www.readbyqxmd.com/read/28299034/the-effect-of-a-lifestyle-modification-education-on-adiposity-measures-in-overweight-and-obese-nonalcoholic-fatty-liver-disease-patients
#11
Arman Arab, Gholamreza Askari, Parastoo Golshiri, Awat Feizi, Ali Hekmatnia, Bijan Iraj, Mojgan Nourian
BACKGROUND: Obesity is increasingly associated with nonalcoholic fatty liver disease (NAFLD) and weight loss through a combination of dietary modifications and increased physical activity is a primary goal of therapy in this disease. Therefore, this study was conducted to evaluate the effects of a lifestyle modification education on adiposity measures, physical activity, and total calorie intake in overweight and obese NAFLD patients. METHODS: During 8 weeks, 82 obese patients were randomly assigned into either an intervention group (n = 41) receiving a lifestyle modification education or to a control group (n = 41) receiving usual care...
2017: International Journal of Preventive Medicine
https://www.readbyqxmd.com/read/28298541/rosa-mosqueta-oil-prevents-oxidative-stress-and-inflammation-through-the-upregulation-of-ppar-%C3%AE-and-nrf2-in-c57bl-6j-mice-fed-a-high-fat-diet
#12
Daniel González-Mañán, Amanda D'Espessailles, Camila G Dossi, Marcela San Martín, Rodrigo A Mancilla, Gladys S Tapia
Background: Rosa mosqueta (RM) oil is characterized by high concentrations of antioxidants and α-linolenic acid (ALA; 18:3n-3). We have previously demonstrated in male C57BL/6J mice that RM decreases hepatic steatosis, a condition strongly associated with oxidative stress and inflammation.Objective: We studied the molecular mechanisms that underlie the role of RM in preventing high-fat diet (HFD)-induced oxidative stress and inflammation.Methods: Male C57BL/6J mice aged 28 d and weighing 12-14 g were divided into the following groups and fed for 12 wk: control diet (CD; 10% fat, 20% protein, and 70% carbohydrates); CD + RM (1...
March 15, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28296952/fatness-mediates-the-influence-of-muscular-fitness-on-metabolic-syndrome-in-colombian-collegiate-students
#13
Antonio García-Hermoso, Hugo Alejandro Carrillo, Katherine González-Ruíz, Andrés Vivas, Héctor Reynaldo Triana-Reina, Javier Martínez-Torres, Daniel Humberto Prieto-Benavidez, Jorge Enrique Correa-Bautista, Jeison Alexander Ramos-Sepúlveda, Emilio Villa-González, Mark D Peterson, Robinson Ramírez-Vélez
The purpose of this study was two-fold: to analyze the association between muscular fitness (MF) and clustering of metabolic syndrome (MetS) components, and to determine if fatness parameters mediate the association between MF and MetS clustering in Colombian collegiate students. This cross-sectional study included a total of 886 (51.9% women) healthy collegiate students (21.4 ± 3.3 years old). Standing broad jump and isometric handgrip dynamometry were used as indicators of lower and upper body MF, respectively...
2017: PloS One
https://www.readbyqxmd.com/read/28296186/changes-in-periprostatic-adipose-tissue-induced-by-5%C3%AE-reductase-inhibitors
#14
D Taussky, M Barkati, S Campeau, K Zerouali, A Nadiri, F Saad, G Delouya
There is increasing interest in periprostatic fat and its influence on prostate cancer aggressiveness. In vitro data suggest that adipose stromal/stem cells (ASCs) can increase production of cytokines and growth factors resulting in invasive growth and metastasis in prostate cancer. The objective of the study was to determine the interaction between 5α-reductase inhibitors (5ARIs) and periprostatic adipose tissue (PPAT) and factors of prostate cancer aggressiveness. In this retrospective study, we identified 61 patients treated with 5ARIs for a period of ≥12 months before undergoing radiation therapy (brachytherapy or external beam radiotherapy)...
March 10, 2017: Andrology
https://www.readbyqxmd.com/read/28294959/the-addition-of-liquid-fructose-to-a-western-type-diet-in-ldl-r-mice-induces-liver-inflammation-and-fibrogenesis-markers-without-disrupting-insulin-receptor-signalling-after-an-insulin-challenge
#15
Gemma Sangüesa, Miguel Baena, Natalia Hutter, José Carlos Montañés, Rosa María Sánchez, Núria Roglans, Juan Carlos Laguna, Marta Alegret
A high consumption of fat and simple sugars, especially fructose, has been related to the development of insulin resistance, but the mechanisms involved in the effects of these nutrients are not fully understood. This study investigates the effects of a Western-type diet and liquid fructose supplementation, alone and combined, on insulin signalling and inflammation in low-density lipoprotein (LDL) receptor-deficient mice (LDL-R(-/-)). LDL-R(-/-) mice were fed chow or Western diet ±15% fructose solution for 12 weeks...
March 15, 2017: Nutrients
https://www.readbyqxmd.com/read/28293856/imaging-of-diabetic-bone
#16
Federico Ponti, Sara Guerri, Claudia Sassi, Giuseppe Battista, Giuseppe Guglielmi, Alberto Bazzocchi
Diabetes is an important concern in terms of medical and socioeconomic costs; a high risk for low-trauma fractures has been reported in patients with both type 1 and type 2 diabetes. The mechanism involved in the increased fracture risk from diabetes is highly complex and still not entirely understood; obesity could play an important role: recent evidence suggests that the influence of fat on bone is mainly dependent on the pattern of regional fat deposition and that an increased amount of visceral adipose tissue negatively affects skeletal health...
March 14, 2017: Endocrine
https://www.readbyqxmd.com/read/28293020/untangling-the-relationship-between-diet-and-visceral-fat-mass-through-blood-metabolomics-and-gut-microbiome-profiling
#17
T Pallister, M A Jackson, T C Martin, C A Glastonbury, A Jennings, M Beaumont, R P Mohney, K S Small, A MacGregor, C J Steves, A Cassidy, T D Spector, C Menni, A M Valdes
BACKGROUND/OBJECTIVES: Higher visceral fat mass (VFM) is associated with an increased risk for developing cardio-metabolic diseases. The mechanisms by which an unhealthy diet pattern may influence VF development has yet to be examined through cutting-edge multi-omic methods. Therefore, our objective was to examine the dietary influences on VFM and identify gut microbiome and metabolite profiles that link food intakes to VFM. SUBJECTS/METHODS: In 2218 twins with VFM, food intake and metabolomics data available we identified food intakes most strongly associated with VFM in 50% of the sample, then constructed and tested the 'VFM diet score' in the remainder of the sample...
March 15, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28291590/an-analysis-of-individual-body-fat-depots-and-risk-of-developing-cancer-insights-from-the-dallas-heart-study
#18
Arjun Gupta, Ambarish Pandey, Colby Ayers, Muhammad S Beg, Susan G Lakoski, Gloria L Vega, Scott M Grundy, David H Johnson, Ian J Neeland
OBJECTIVE: To examine the association between specific adipose tissue depots and the risk of incident cancer in the Dallas Heart Study. PATIENTS AND METHODS: Individuals without prevalent cancer in the Dallas Heart Study underwent quantification of adipose depots: visceral adipose tissue (VAT), abdominal subcutaneous adipose tissue, and liver fat by magnetic resonance imaging, and subcutaneous lower-body fat (LBF) by dual-energy X-ray absorptiometry from January 1, 2000, through December 31, 2002, and were observed for the development of cancer for up to 12 years...
March 10, 2017: Mayo Clinic Proceedings
https://www.readbyqxmd.com/read/28291240/testosterone-levels-in-pre-menopausal-women-are-associated-with-nonalcoholic-fatty-liver-disease-in-midlife
#19
Monika Sarkar, Melissa Wellons, Marcelle I Cedars, Lisa VanWagner, Erica P Gunderson, Veeral Ajmera, Laura Torchen, David Siscovick, J Jeffrey Carr, James G Terry, Mary Rinella, Cora E Lewis, Norah Terrault
OBJECTIVES: Young women with hyperandrogenism have high risk of metabolic co-morbidities, including increased risk of nonalcoholic fatty liver disease (NAFLD). Whether testosterone (the predominant androgen) is associated with NAFLD independent of metabolic co-factors is unclear. Additionally, whether testosterone confers increased risk of NAFLD in women without hyperandrogenism is unknown. METHODS: Among women in the prospective population-based multicenter Coronary Artery Risk Development in Young Adults (CARDIA) study, we assessed whether free testosterone levels measured at Year 2 (1987-1988) were associated with prevalent NAFLD at Year 25 (2010-2011) (n=1052)...
March 14, 2017: American Journal of Gastroenterology
https://www.readbyqxmd.com/read/28287629/metabolic-disturbances-due-to-a-high-fat-diet-in-a-non-insulin-resistant-animal-model
#20
L Ramalho, M N da Jornada, L C Antunes, M P Hidalgo
OBJECTIVE: Shift workers have metabolic changes more often than day workers. It is also known that night workers prefer foods high in saturated fat. Such data suggest that shift workers are prone to cardiovascular disease. Therefore, the objective of this study was to propose an animal model to test the effect of high-fat diet (HFD) based on shift workers' diet. METHODS: This is an experimental study with 20 Wistar rats. Ten rats were allocated to the control group (CG) and were fed standard diet...
March 13, 2017: Nutrition & Diabetes
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