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International Journal of Obesity: Journal of the International Association for the Study of Obesity

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https://www.readbyqxmd.com/read/28546543/metabolic-profiling-of-polycystic-ovary-syndrome-reveals-interactions-with-abdominal-obesity
#1
Alexessander Couto Alves, Beatriz Valcarcel, Ville-Petteri Mäkinen, Laure Morin-Papunen, Sylvain Sebert, Antti J Kangas, Pasi Soininen, Shikta Das, Maria De Iorio, Lachlan Coin, Mika Ala-Korpela, Marjo-Riitta Järvelin, Stephen Franks
BACKGROUND: Polycystic ovary syndrome (PCOS) is a common reproductive disorder associated with metabolic disturbances including obesity, insulin resistance, and diabetes mellitus. Here we investigate whether changes in the metabolic profile of PCOS women are driven by increased tendency to obesity or are specific features of PCOS related to increased testosterone levels. DESIGN AND METHODS: We conducted an NMR metabolomics association study of PCOS cases (n=145) and controls (n=687) nested in a population-based birth cohort (n=3,127)...
May 26, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28529332/adiposity-and-grip-strength-as-long-term-predictors-of-objectively-measured-physical-activity-in-93-015-adults-the-uk-biobank-study
#2
Y Kim, T White, K Wijndaele, S J Sharp, N J Wareham, S Brage
BACKGROUND/OBJECTIVES: Fatness and fitness are associated with physical activity (PA) but less is known about the prospective associations of adiposity and muscle strength with PA. This study aimed to determine longitudinal associations of body mass index (BMI), waist circumference (WC) and grip strength (GS) with objectively measured PA. SUBJECTS/METHODS: Data are from the UK Biobank study. At baseline (2006-2010), BMI, WC and GS were objectively measured. At follow-up (2013-2015), a sub-sample of 93 015 participants (52 161 women) wore a tri-axial accelerometer on the dominant wrist for 7 days...
May 22, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28529331/butyrylcholinesterase-regulates-central-ghrelin-signaling-and-impacts-food-intake-and-glucose-homeostasis
#3
V P Chen, Y Gao, L Geng, S Brimijoin
BACKGROUND: Ghrelin is the only orexigenic hormone known to stimulate food intake and promote obesity and insulin resistance. We recently showed that plasma ghrelin is controlled by butyrylcholinesterase (BChE), which has a strong impact on feeding and weight gain. BChE knockout (KO) mice are prone to obesity on high-fat diet but hepatic BChE gene transfer rescues normal food intake and obesity resistance. However, these mice lack brain BChE and still develop hyperinsulinemia and insulin resistance, suggesting essential interactions between BChE and ghrelin within the brain...
May 22, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28529330/dietary-medium-chain-saturated-fatty-acids-induce-gene-expression-of-energy-metabolism-related-pathways-in-adipose-tissue-of-abdominally-obese-subjects
#4
J C Matualatupauw, M Bohl, S Gregersen, K Hermansen, L A Afman
BACKGROUND: Dietary medium-chain saturated fatty acids (MC-SFAs) have been shown to reduce total body fat. Previously, we showed that MC-SFAs prevent body fat accumulation, despite weight gain. Here, we aim to explore potential molecular mechanisms underlying the protective effect of MC-SFAs on body fat gain. METHODS: The DairyHealth study examined the long-term effects of milk protein and milk fat with a low or high content of MC-SFA. In this 12 week, randomized, double-blind, diet intervention study, participants consumed 60 g milk protein (whey or casein) and 63 g milk fat (high MC-SFA or low MC-SFA) daily in a 2 by 2 factorial design...
May 22, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28529329/body-mass-index-growth-trajectories-associated-with-the-different-parameters-of-the-metabolic-syndrome-at-adulthood
#5
K V Giudici, M-F Rolland-Cachera, G Gusto, D Goxe, O Lantieri, S Hercberg, S Péneau
BACKGROUND: Growth trajectories have shown to be related to obesity and metabolic risks in later life, however body mass index (BMI) trajectories according to the presence or absence of metabolic syndrome (MS) and its parameters in adulthood are scarce in literature. OBJECTIVES: To investigate BMI trajectories during childhood in relation to MS and its parameters in adult age. METHODS: A total of 1919 subjects (43.4% male, 20-60y) participated in this retrospective cohort study...
May 22, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28529328/perivascular-adipose-tissue-epiphenomenon-or-local-risk-factor
#6
REVIEW
K Schäfer, I Drosos, S Konstantinides
Obesity is associated with an increased cardiovascular risk, but the mechanisms underlying the link between increased body weight and vascular disease are incompletely understood. Over the past 15 years, perivascular adipose tissue has emerged as active component of the vessel wall involved in vascular homeostasis. However, perivascular adipose tissue can adopt detrimental properties under the influence of obesity and other factors and contribute actively to the pathophysiology of cardiovascular disease. Conversely, changes of the vessel wall may negatively affect perivascular adipose tissue qualities...
May 22, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28529327/metabolite-profiling-of-obese-individuals-before-and-after-a-one-year-weight-loss-program
#7
N Geidenstam, M Al-Majdoub, M Ekman, P Spégel, M Ridderstråle
OBJECTIVE: We and others have previously characterized changes in circulating metabolite levels following diet-induced weight loss. Our aim was to investigate if baseline metabolite levels and weight loss-induced changes in these are predictive of or associated with changes in body mass index (BMI) and metabolic risk traits. METHODS: Serum metabolites were analyzed with gas and liquid chromatography/mass spectrometry in 91 obese individuals at baseline and after participating in a one year non-surgical weight loss program...
May 22, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28487553/maternal-cytokine-status-may-prime-the-metabolic-profile-and-increase-risk-for-obesity-in-children
#8
B Englich, G Herberth, U Rolle-Kampczyk, S Trump, S Röder, M Borte, G I Stangl, M von Bergen, I Lehmann, K M Junge
BACKGROUNDThe maternal inflammation status during pregnancy has been associated to metabolic imprinting and obesity development in the child. However the influence of the maternal Th2 cytokines IL4, IL5 and IL13 has not been studied so far.METHODSWe investigated the relationship between maternal innate (IL6, IL8, IL10 and TNFα) and adaptive (IFNγ, IL4, IL5 and IL13) blood cytokine levels at 34 weeks of gestation and children's overweight development until the age of three years in 407 children of the German longitudinal LINA cohort...
May 10, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28487552/newborn-insula-gray-matter-volume-is-prospectively-associated-with-early-life-adiposity-gain
#9
J M Rasmussen, S Entringer, F Kruggel, D M Cooper, M Styner, J H Gilmore, S G Potkin, P D Wadhwa, C Buss
BACKGROUNDThe importance of energy homeostasis brain circuitry in the context of obesity is well established, however, the developmental ontogeny of this circuitry in humans is currently unknown. Here, we investigate the prospective association between newborn gray matter (GM) volume in the insula, a key brain region underlying energy homeostasis, and change in percent body fat accrual over the first six months of postnatal life, an outcome that represents among the most reliable infant predictors of childhood obesity risk...
May 10, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28487551/high-free-androgen-index-is-associated-with-increased-risk-of-non-alcoholic-fatty-liver-disease-in-women-with-polycystic-ovary-syndrome-independently-of-obesity-and-insulin-resistance
#10
C Jie, W Chunhua, Z Yi, W Yuying, X Wendi, L Tzuchun, L Shengxian, W Lihua, Z Jun, S Yun, L Wei, T Tao
BACKGROUND/OBJECTIVECentral obesity and insulin resistance are common conditions in women with PCOS and in subjects with non-alcoholic fatty liver disease (NAFLD). However, few studies have addressed the association between hyperandrogenism (HA) and NAFLD. We aimed to determine whether variations in the free androgen index (FAI) might be associated with NAFLD prevalence.SUBJECTS/METHODSA cross-sectional study was performed including 400 Chinese women with PCOS and 100 age and body mass index (BMI)-matched women...
May 10, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28392556/role-of-orexin-a-in-the-ventrolateral-preoptic-area-on-components-of-total-energy-expenditure
#11
J E Coborn, D P DePorter, V Mavanji, C M Sinton, C M Kotz, C J Billington, J A Teske
BACKGROUND: Identifying whether components of total energy expenditure (EE) are affected by orexin receptor (OXR1 and OXR2) stimulation or antagonism with dual orexin receptor antagonists (DORAs) has relevance for obesity treatment. Orexin receptor stimulation reduces weight gain by increasing total EE and EE during spontaneous physical activity (SPA). OBJECTIVE: The purpose of this study was to determine if a DORA (TCS-1102) in the ventrolateral preoptic area (VLPO) reduced orexin-A-induced arousal, SPA, total EE and EE during sleep, rest, wake and SPA and whether the DORA alone reduced total EE and its components...
May 9, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28293017/longitudinal-study-of-the-associations-between-change-in-sedentary-behavior-and-change-in-adiposity-during-childhood-and-adolescence-gateshead-millennium-study
#12
K D Mann, L D Howe, L Basterfield, K N Parkinson, M S Pearce, J K Reilly, A J Adamson, J J Reilly, X Janssen
BACKGROUND: Sedentary time (ST) has been reported to have a range of negative health effects in adults, however, the evidence for such effects among children and adolescents is sparse. The primary aim of the study was to examine associations between changes in sedentary behavior (time and fragmentation) and changes in adiposity across childhood and adolescence. METHODS: Participants were recruited as part of the Gateshead Millennium Study. Measures were taken at age 7 (n=502), 9 (n=506), 12 (n=420) and 15 years (n=306)...
May 9, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28465611/parental-optimism-about-childhood-obesity-related-disease-risks
#13
D R Wright, P Lozano, E Dawson-Hahn, D A Christakis, W Haaland, A Basu
OBJECTIVES: Most parents believe childhood obesity is a problem for society, but not for their own children. We sought to understand whether parents' risk assessment was skewed by optimism, the tendency to overestimate one's chances of experiencing positive events. METHODS: We administered a national web-based survey to 502 parents of 5-12 year old children. Parents reported the chances that (a) their child and (b) 'a typical child in their community' would be overweight or obese, and develop hypertension, heart disease, type 2 diabetes, and depression in adulthood...
May 3, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28465610/central-fat-accretion-and-insulin-sensitivity-differential-relationships-in-parous-and-nulliparous-women
#14
K H Ingram, G R Hunter, J B F James, B A Gower
BACKGROUND/OBJECTIVES: Childbearing is associated with a disproportionate accumulation of visceral fat and an increased risk of metabolic disease. However, it is unknown whether the visceral fat accretion associated with pregnancy modifies a woman's risk for metabolic disease. The purpose of this study was to test whether the association between abdominal fat and insulin sensitivity differs by parity status in healthy overweight women. SUBJECTS/ METHODS: Intra-abdominal adipose tissue (IAAT) via CT, body composition by DXA, insulin sensitivity via intravenous glucose tolerance test and minimal model (SI), HOMA-IR, and cardiorespiratory fitness (VO2max) were assessed in 212 non-diabetic, premenopausal, overweight non-Hispanic white and African American women...
May 3, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28465609/childhood-body-mass-index-and-endothelial-dysfunction-evaluated-by-peripheral-arterial-tonometry-in-early-midlife
#15
M J A Williams, B J Milne, A Ambler, R Theodore, S Ramrakha, A Caspi, T E Moffitt, R Poulton
BACKGROUND/OBJECTIVES: Endothelial dysfunction predicts mortality but it is unknown whether childhood obesity predicts adult endothelial dysfunction. The aim of this study was to determine whether anthropometric indices of body fat in childhood, adolescence and early midlife are associated with endothelial dysfunction in early midlife. SUBJECTS/METHODS: Participants belonged to a representative birth cohort of 1037 individuals born in Dunedin, New Zealand in 1972 and 1973 and followed to age 38 years, with 95% retention (the Dunedin Multidisciplinary Health and Development Study)...
May 3, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28465608/depot-specific-differences-in-fatty-acid-composition-and-distinct-associations-with-lipogenic-gene-expression-in-abdominal-adipose-tissue-of-obese-women
#16
P Petrus, D Edholm, F Rosqvist, I Dahlman, M Sundbom, P Arner, M Rydén, U Risérus
Cardiometabolic diseases are primarily linked to enlarged visceral adipose tissue (VAT). However, some data suggest heterogeneity within the subcutaneous (SAT) depot with potential metabolic differences between the superficial (sSAT) and deep (dSAT) compartments. We aimed to investigate the heterogeneity of these three depots with regard to fatty acid (FA) composition and gene expression. Adipose tissue biopsies were collected from 75 obese women undergoing laparoscopic gastric bypass surgery. FA composition and gene expression were determined with gas chromatography and qRT-PCR, respectively...
May 3, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28465607/methods-for-quantifying-adipose-tissue-insulin-resistance-in-overweight-obese-humans
#17
K W Ter Horst, K A van Galen, P W Gilijamse, A V Hartstra, P F de Groot, F M van der Valk, M T Ackermans, M Nieuwdorp, J A Romijn, M J Serlie
BACKGROUND/OBJECTIVES: Insulin resistance of adipose tissue is an important feature of obesity-related metabolic disease. However, assessment of lipolysis in humans requires labor-intensive and expensive methods, and there is limited validation of simplified measurement methods. We aimed to validate simplified methods for the quantification of adipose tissue insulin resistance against the assessment of insulin sensitivity of lipolysis suppression during hyperinsulinemic-euglycemic clamp studies...
May 3, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28465606/is-body-mass-index-associated-with-lowest-mortality-increasing-over-time
#18
Z Wang, Y Peng, B Dong
BACKGROUND: It is debatable whether the BMI value that is associated with the lowest all-cause mortality has increased over time. Such an increase might indicate that the WHO BMI categories for normal weight and overweight need to be revised over time. This study assessed whether the BMI associated with the lowest all-cause mortality increased over time among US adults in the National Health Interview Survey. METHODS: This survey with up to 25 years of follow-up included 901 197 participants, aged 20 to 79 years with baseline BMI between 18...
May 3, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28465605/arterial-stiffening-insulin-resistance-and-acanthosis-nigricans-in-a-community-sample-of-adolescents-with-obesity
#19
L D Hudson, S Kinra, I Wong, R M Viner
Acanthosis Nigricans (AN) is a common finding in adolescents with obesity. Little is known about its relevance for cardiovascular (CVS) risk, in particular arterial stiffening.? We investigated associations between AN, conventional markers of CVS risk and carotid-radial pulse wave velocity (PWV) in a community sample of adolescents with obesity aged 12-19 recruited to an obesity trial. AN was present in 63% of subjects and 43% had severe grading. Presence of AN and severe AN were associated with BMIz. Presence of AN (but not severity) was associated with abnormal or fasting hyperinsulinaemia but not after adjustment for BMIz...
May 3, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28465604/hfd-induced-energy-states-dependent-bidirectional-control-of-anxiety-levels-in-mice
#20
P Sweeney, K O'Hara, Z Xu, Y Yang
BACKGROUND: The association between the development of obesity and its metabolic comorbidities and chronic consumption of high-fat diet (HFD) has been well demonstrated. Interestingly, emerging evidence indicates that obesity is also associated with an increased risk for psychiatric disorders including anxiety and depression. Although HFD feeding is associated with anxiety-related behaviors, previous studies have reported inconsistent findings on the direction of this relationship. Therefore, in this study we sought to investigate the link between HFD feeding, body weight, energy states, and anxiety levels in mice and specifically to determine if the duration of HFD exposure has distinct effects on anxiety-related behaviors...
May 3, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
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