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dietary leptin

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https://www.readbyqxmd.com/read/29136612/biochemical-anthropometric-and-lifestyle-factors-related-with-weight-maintenance-after-weight-loss-secondary-to-a-hypocaloric-mediterranean-diet
#1
Daniel Antonio de Luis, Olatz Izaola, David Primo, Hilda F Ovalle, Juan Jose Lopez, Emilia Gomez, Ana Ortola, Rocio Aller
BACKGROUND/AIMS: The aim of our study was to evaluate the influence of lifestyle factors and molecular biomarkers on the maintenance of the weight lost after a hypocaloric Mediterranean diet. DESIGN: After 3 months on a diet, patients (n = 335) remained with no controlled diet during 3 years and they were revaluated. RESULTS: Using linear regression, in the group of responders, we detected that a positive weight loss at 3 months, serum levels of leptin at 3 months, and each 30 min per week of physical activity were associated with weight loss maintenance...
November 14, 2017: Annals of Nutrition & Metabolism
https://www.readbyqxmd.com/read/29129611/effect-of-sleep-curtailment-on-dietary-behavior-and-physical-activity-a-randomized-crossover-trial
#2
Eri Tajiri, Eiichi Yoshimura, Yoichi Hatamoto, Hiroaki Tanaka, Seiya Shimoda
Our objective was to clarify the effect of sleep curtailment on energy intake (EI) and physical activity under free-living conditions. Participants were 16 healthy women aged 21-22years. A randomized crossover trial design was used to compare a short sleep condition (SS): 4h/night (2:00-6:00) and a control sleep condition (CS): 7h/night (23:00-6:00). Each condition comprised 3 consecutive nights. Sleep duration was assessed using a wristwatch-type accelerometer at home. All living activities except sleeping were free-living...
November 9, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/29122953/dietary-weight-loss-induced-changes-in-rbp4-ffa-and-ace-predict-weight-regain-in-people-with-overweight-and-obesity
#3
Roel G Vink, Nadia J Roumans, Edwin C Mariman, Marleen A van Baak
Adipokines and other biomarkers were previously identified with roles in energy expenditure, appetite, satiety, and adiposity. Therefore, we investigated whether dietary weight loss-induced changes in adipokines and other biomarkers known to play a role in weight regulation or energy expenditure could predict weight regain in people with overweight and obesity. In this randomized controlled trial 26 males and 30 females (BMI: 28-35 kg/m(2)) followed either a low-calorie diet (LCD; 1250 kcal/day) for 12 weeks or a very-low-calorie diet (VLCD; 500 kcal/day) for 5 weeks followed by a weight stable period of 4 weeks (dietary intervention (DI) period) and a 9-month follow-up period...
November 2017: Physiological Reports
https://www.readbyqxmd.com/read/29111889/the-combined-effects-of-exercise-diet-and-a-multi-ingredient-dietary-supplement-on-body-composition-and-adipokine-changes-in-overweight-adults
#4
Shawn M Arent, Alan J Walker, Joseph K Pellegrino, David J Sanders, Bridget A McFadden, Tim N Ziegenfuss, Hector L Lopez
BACKGROUND: Very few weight and fat loss supplements undergo finished-product research to examine efficacy. The purpose of this study was to determine the effects of an 8-week diet and exercise program on body composition, hip and waist girth, and adipokines and evaluate whether a dietary supplement containing raspberry ketone, capsaicin, caffeine, garlic, and Citrus aurantium enhanced outcomes. METHODS: Overweight men and women completed this randomized, placebo-controlled, double-blind study...
November 7, 2017: Journal of the American College of Nutrition
https://www.readbyqxmd.com/read/29108071/milk-yield-and-genomewide-expression-profiling-in-the-mammary-gland-of-beef-primiparous-cows-in-response-to-the-dietary-management-during-the-pre-and-postweaning-periods
#5
E Dervishi, M Blanco, J A Rodríguez-Sánchez, A Sanz, J H Calvo, I Casasús
Accelerated growth programs during prepubertal periods have been promoted to advance the first calving of beef heifers. The objectives of the present study were to evaluate nutrition-induced changes on first lactation milk yield and composition and on gene expression of the mammary gland in Parda de Montaña primiparous cows. Female calves ( = 16) were involved in a 2 × 2 factorial experiment. In the preweaning period (PRE-W; 0-6 mo), female calves were either fed a creep feed supplement (Creep) or fed only their dam's milk (Control)...
October 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/29103711/short-communication-the-association-of-adiponectin-and-leptin-concentrations-with-prepartum-dietary-energy-supply-parity-body-condition-and-postpartum-hyperketonemia-in-transition-dairy-cows
#6
S Mann, C Urh, H Sauerwein, J J Wakshlag, F A Leal Yepes, T R Overton, D V Nydam
Adipokines-hormones produced by adipose tissue-have important regulatory functions, and their concentrations can change around the time of calving when energy balance rapidly decreases. Hence, energy balance may be an important factor in determining the circulating concentrations of adipokines, particularly adiponectin and leptin. The objective of our study was to investigate the association between the level of energy fed to prepartum Holstein cows and circulating concentrations of adiponectin and leptin before and after calving...
November 2, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/29081462/association-between-nitrogen-stable-isotope-ratios-in-human-hair-and-serum-levels-of-leptin
#7
Song Vogue Ahn, Sang-Baek Koh, Kwang-Sik Lee, Yeon-Sik Bong, Jong-Ku Park
Stable isotope ratios have been reported to be potential biomarkers of dietary intake and nutritional status. High serum levels of leptin, a hormone which regulates energy metabolism and food intake, are associated with insulin resistance and metabolic syndrome. However, little is known about the association between stable isotope ratios and the metabolic risk in humans. We investigated whether the carbon and nitrogen stable isotope ratios in hair are associated with serum leptin levels. Hair samples were collected from 399 healthy adults (233 men and 166 women) aged 40 to 70 years of a community-based cohort in Korea and the bulk stable isotope ratios of carbon (δ(13)C) and nitrogen (δ(15)N) were measured for all hair samples...
October 2017: Tohoku Journal of Experimental Medicine
https://www.readbyqxmd.com/read/29079192/exposure-to-cigarette-smoke-disturbs-adipokines-secretion-causing-intercellular-damage-and-insulin-resistance-in-high-fructose-diet-induced-metabolic-disorder-mice
#8
Sanghwa Kim, Ah Young Lee, Hyeon-Jeong Kim, Seong-Ho Hong, Ryeo-Eun Go, Kyung-Chul Choi, Kyung-Sun Kang, Myung-Haing Cho
A large amount of fructose intake along with smoking is associated with increased incidence of diseases linked to metabolic syndrome. More research is necessary to understand the complex mechanism that ultimately results in metabolic syndrome and the effect, if any, of high fructose dietary intake and smoking on individual health. In this study, we investigated changes in ER-Golgi network and disturbance to secretion of adipokines induced by cigarette smoking (CS) and excess fructose intake and their contribution to the disruption of metabolic homeostasis...
October 25, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29070088/effect-of-turmeric-on-the-viability-ovarian-folliculogenesis-fecundity-ovarian-hormones-and-response-to-luteinizing-hormone-of-rabbits
#9
A V Sirotkin, A Kadasi, A Stochmalova, A Balazi, M Földesiová, P Makovicky, P Chrenek, A H Harrath
The present study investigated whether dietary turmeric (Curcuma longa L.) can improve rabbit reproduction, ovarian function, growth, or viability. Female New Zealand White rabbits were either fed a standard diet (n=15) or a diet enriched with 5 g (group E1) or 20 g (group E2) turmeric powder per 100 kg feed mixture (n=16 or 15, respectively). After 295 days, weight gain, conception and kindling rates, pup and mother viability, ovarian macro- and micro-morphometric indices, release of leptin in response to the addition LH, and the release of progesterone, testosterone and leptin by isolated ovarian fragments were analyzed...
October 26, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/29044854/targeted-proteomic-analysis-of-habitual-coffee-consumption
#10
M C Cornelis, S Gustafsson, J Ärnlöv, S Elmståhl, S Söderberg, J Sundström, K Michaëlsson, L Lind, E Ingelsson
BACKGROUND: Coffee drinking has been implicated in mortality and a variety of diseases but potential mechanisms underlying these associations are unclear. Large-scale systems epidemiological approaches may offer novel insights to mechanisms underlying associations of coffee with health. OBJECTIVE: We performed an analysis of known and novel protein markers linked to cardiovascular disease and their association with habitual coffee intake in the Prospective Study of the Vasculature in Uppsala Seniors (PIVUS, n = 816) and followed up top proteins in the Uppsala Longitudinal Study of Adult Men (ULSAM, n = 635) and EpiHealth (n = 2418)...
October 16, 2017: Journal of Internal Medicine
https://www.readbyqxmd.com/read/29031395/habitual-dietary-intake-of-fatty-acids-are-associated-with-leptin-gene-expression-in-subcutaneous-and-visceral-adipose-tissue-of-patients-without-diabetes
#11
Hosein Rostami, Mohammad Samadi, Emad Yuzbashian, Maryam Zarkesh, Golaleh Asghari, Mehdi Hedayati, Afsoon Daneshafrooz, Parvin Mirmiran, Alireza Khalaj
The purpose of the study was to investigate the association of leptin gene expression in visceral and subcutaneous adipose tissues with habitual fatty acid intake and its subtypes in adults. Visceral and subcutaneous adipose tissues were gathered from 97 participants aged ≥ 20, who had undergone elective abdominal surgery. Dietary fatty acid intakes including total fatty acids (TFA), saturated fatty acid (SFA), monounsaturated fatty acids (MUFA), polyunsaturated fatty acids (PUFA), n-3, n-6, and n-9 fatty acids were collected using a valid and reliable food-frequency questionnaire (FFQ)...
November 2017: Prostaglandins, Leukotrienes, and Essential Fatty Acids
https://www.readbyqxmd.com/read/29018783/effects-of-erythrocyte-membrane-polyunsaturated-fatty-acids-in-overweight-obese-and-morbidly-obese-korean-women
#12
Ha-Neul Choi, Jung-Eun Yim
BACKGROUND: The levels of erythrocyte polyunsaturated fatty acids (FAs) may be associated with obesity, metabolic syndrome, and cancer. Thus, we investigated the association between erythrocyte n-3 and n-6 FA composition, body mass index (BMI), and biochemical profiles. METHODS: The body composition, dietary intake, and blood parameters, including serum lipid, glucose, insulin, adipokines, oxidative stress, and erythrocyte FA, were assessed in 66 overweight and obese women (average age, 43...
September 2017: Journal of Cancer Prevention
https://www.readbyqxmd.com/read/28986397/potential-mechanisms-of-hypothalamic-renin-angiotensin-system-activation-by-leptin-and-doca-salt-for-the-control-of-resting-metabolism
#13
Sarah A Sapouckey, Guorui Deng, Curt D Sigmund, Justin L Grobe
The renin-angiotensin system (RAS), originally described as a circulating hormone system, is an enzymatic cascade in which the final vasoactive peptide angiotensin II (ANG) regulates cardiovascular, hydromineral, and metabolic functions. The RAS is also synthesized locally in a number of tissues including the brain, where it can act in a paracrine fashion to regulate blood pressure, thirst, fluid balance, and resting energy expenditure / resting metabolic rate (RMR). Recent studies demonstrate that ANG AT1A receptors (Agtr1a) specifically in agouti-related peptide (AgRP) neurons of the arcuate nucleus (ARC) coordinate autonomic and energy expenditure responses to various stimuli including deoxycorticosterone acetate (DOCA)-salt, high fat feeding, and leptin...
October 6, 2017: Physiological Genomics
https://www.readbyqxmd.com/read/28982014/the-role-of-suppression-of-hepatic-scd1-expression-in-the-metabolic-effects-of-dietary-methionine-restriction
#14
Laura A Forney, Kirsten P Stone, Desiree Wanders, James M Ntambi, Thomas W Gettys
Dietary methionine restriction (MR) produces concurrent increases in energy intake and expenditure, but the proportionately larger increase in energy expenditure (EE) effectively limits weight gain and adipose tissue accretion over time. Increased hepatic FGF21 is essential to MR-dependent increases in EE, but it is unknown whether the downregulation of hepatic stearoyl-CoA desaturase-1 (SCD1) by MR could also be a contributing factor. Global deletion of SCD1 mimics cold exposure in mice housed at 23°C by compromising the insular properties of the skin...
October 5, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28981381/effects-of-n-3-polyunsaturated-fatty-acid-supplementation-on-serum-leptin-levels-appetite-sensations-and-intake-of-energy-and-macronutrients-in-obese-people-a-randomized-clinical-trial
#15
L Payahoo, A Ostadrahimi, N Farrin, Y Khaje-Bishak
Obesity is a common health problem. Appetite is one of the main obesity-controlling factors that can be influenced by leptin. Leptin reduces food intake and accelerates energy expenditure. Leptin levels can be affected by dietary factors such as fats, special amino acids, and fructose. This study aimed to determine the effects of polyunsaturated fatty acid n-3 (PUFA n-3) supplementation on serum leptin levels, appetite sensations, and dietary intakes in obese people. This study was performed on 60 obese individuals with body mass index (BMI) 30 (kg/m(2)) and above in 2012 in Tabriz, Iran...
October 5, 2017: Journal of Dietary Supplements
https://www.readbyqxmd.com/read/28980293/the-impact-of-individualized-nutritional-therapy-according-to-dash-diet-on-blood-pressure-body-mass-and-selected-biochemical-parameters-in-overweight-obese-patients-with-primary-arterial-hypertension-a-prospective-randomized-study
#16
Alicja Kucharska, Danuta Gajewska, Mirosław Kiedrowski, Beata Sińska, Grzegorz Juszczyk, Aleksandra Czerw, Anna Augustynowicz, Krzysztof Bobiński, Andrzej Deptała, Joanna Niegowska
BACKGROUND AND AIM: The aim of the study was to assess the impact of individualized nutritional intervention according to DASH principles (Dietary Approaches to Stop Hypertension) on the nutritional status, blood pressure, and selected biochemical parameters of obese /overweight patients with primary arterial hypertension. M ETHODS: 131 participants were randomized to the DASH intervention group (DIG; n=69, 33 males) or the control group (CG; n=62, 32 males). A three month nutritional intervention was carried out in the DIG, while the control group received only standard recommendations...
October 5, 2017: Kardiologia Polska
https://www.readbyqxmd.com/read/28930270/protective-effects-of-six-selected-dietary-compounds-against-leptin-induced-proliferation-of-oestrogen-receptor-positive-mcf-7-breast-cancer-cells
#17
Meran Keshawa Ediriweera, Kamani Hemamala Tennekoon, Sameera Ranganath Samarakoon, Ira Thabrew, E Dilip de Silva
BACKGROUND: Obesity is considered as one of the risk factors for breast cancer. Leptin has been found to be involved in breast cancer progression. Therefore, novel approaches to antagonize biological effects of leptin are much needed. The objective of this study was to evaluate the protective effects of six dietary compounds (quercetin, curcumin, gallic acid, epigallocatechin gallate (EGCG), ascorbic acid and catechin) and assess the phosphorylation of extracellular signal-regulated kinase 1/2 (ERK1/2) in leptin-stimulated MCF-7 breast cancer cells in vitro...
July 26, 2017: Medicines (Basel, Switzerland)
https://www.readbyqxmd.com/read/28921841/in-a-randomized-trial-in-prostate-cancer-patients-dietary-protein-restriction-modifies-markers-of-leptin-and-insulin-signaling-in-plasma-extracellular-vesicles
#18
Erez Eitan, Valeria Tosti, Caitlin N Suire, Edda Cava, Sean Berkowitz, Beatrice Bertozzi, Sophia M Raefsky, Nicola Veronese, Ryan Spangler, Francesco Spelta, Maja Mustapic, Dimitrios Kapogiannis, Mark P Mattson, Luigi Fontana
Obesity, metabolic syndrome, and hyperleptinemia are associated with aging and age-associated diseases including prostate cancer. One experimental approach to inhibit tumor growth is to reduce dietary protein intake and hence levels of circulating amino acids. Dietary protein restriction (PR) increases insulin sensitivity and suppresses prostate cancer cell tumor growth in animal models, providing a rationale for clinical trials. We sought to demonstrate that biomarkers derived from plasma extracellular vesicles (EVs) reflect systemic leptin and insulin signaling and respond to dietary interventions...
December 2017: Aging Cell
https://www.readbyqxmd.com/read/28904060/early-exposure-to-a-high-fat-high-sugar-diet-increases-the-mammary-stem-cell-compartment-and-mammary-tumor-risk-in-female-mice
#19
Isabel U Lambertz, Linjie Luo, Thomas R Berton, Scott L Schwartz, Stephen D Hursting, Claudio J Conti, Robin Fuchs-Young
Obesity and alterations in metabolic programming from early diet exposures can affect the propensity to disease in later life. Through dietary manipulation, developing mouse pups were exposed to a hyperinsulinemic, hyperglycemic milieu during three developmental phases: gestation, lactation, and postweaning. Analyses showed that a postweaning high fat/high sugar (HF/HS) diet had the main negative effect on adult body weight, glucose tolerance, and insulin resistance. However, dimethylbenz[a]anthracene (DMBA)-induced carcinogenesis revealed that animals born to a mother fed a HF/HS gestation diet, nursed by a mother on a mildly diet-restricted, low fat/low sugar diet (DR) and weaned onto a HF/HS diet (HF/DR/HF) had the highest mammary tumor incidence, while HF/HF/DR had the lowest tumor incidence...
October 2017: Cancer Prevention Research
https://www.readbyqxmd.com/read/28895540/polymorphism-rs3123554-in-the-cannabinoid-receptor-gene-type-2-cnr2-reveals-effects-on-body-weight-and-insulin-resistance-in-obese-subjects
#20
Daniel Antonio de Luis, Olatz Izaola, David Primo, Beatriz de la Fuente, Rocio Aller
BACKGROUND: Few studies assessing the relationship between single nucleotide polymorphisms in CNR2 and obesity or its related metabolic parameters are available. OBJECTIVE: To investigate the influence of polymorphism rs3123554 in the CNR2 receptor gene on obesity anthropometric parameters, insulin resistance, and adipokines in subjects with obesity. DESIGN: The study population consisted of 1027 obese subjects, who were performed bioelectrical impedance analyses, blood pressure measurements, serial assessments of dietary intake during three days, and biochemical tests...
October 2017: Endocrinología, diabetes y nutrición
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