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dietary leptin

K Virecoulon Giudici, R M Fisberg, D M Lobo Marchioni, L Araújo Martini
BACKGROUND: Considering that lifestyle and diet are key factors responsible for the increases in adiposity in youth, it is important to understand how vitamin D, adipokines and markers of glucose metabolism are related to physical activity level (PAL) during growth. The present study aimed to investigate associations between physical activity level, adiponectin/leptin ratio, vitamin D status and dietary vitamin D intake among adolescents. METHODS: A cross-sectional study was conducted with adolescents aged 14-18 years old who were living in São Paulo, Brazil...
October 25, 2016: Journal of Human Nutrition and Dietetics: the Official Journal of the British Dietetic Association
V E Radzinskii, I V Kuznetsova, Y B Uspenskaya, N B Repina, Y K Gusak, O M Zubova, D I Burchakov, A A Osmakova
Peri- and postmenopausal women commonly suffer from climacteric symptoms. We evaluated the effectiveness and safety of dietary supplement Amberen to relieve vasomotor and psychosomatic symptoms during the course of a 3-month, randomized, double-blind, placebo-controlled study. General clinical assessment, evaluation using the Greene climacteric test and Spielberger-Hanin test, determination of plasma levels of gonadotropins, estradiol, leptin and apolipoproteins were used to evaluate 42-60-year-old women with vasomotor and psychosomatic menopausal symptoms...
October 2016: Gynecological Endocrinology
W Wu, J Xie, H Zhang
Dietary fibers (DFs), widely used as food additives to replace fat, can benefit metabolic disorders. Soluble and highly fermentable inulin (INU) and insoluble and less fermentable microcrystalline cellulose (MCC) have hypolipidemic or cholesterol-lowering effects, respectively. The current study was aimed at identifying plasma metabolite signatures and metabolic pathways associated with inclusion of DFs with different physiochemical properties, which will lead to a better understanding of functional pathways for DFs to improve metabolic health...
October 18, 2016: Food & Function
Enrique Jurado-Ruiz, Lourdes M Varela, Amparo Luque, Genoveva Berná, Gladys Cahuana, Enrique Martinez-Force, Rocío Gallego-Durán, Bernat Soria, Baukje de Roos, Manuel Romero Gómez, Franz Martín
SCOPE: We evaluated the protective effect of extra virgin olive oil (EVOO) in high-fat diets (HFDs) on the inflammatory response and liver damage in a non-alcoholic fatty liver disease (NAFLD) mouse model. METHODS AND RESULTS: C57BL/6J mice fed a standard diet or a lard-based HFD (HFD-L) for 12 weeks to develop NAFLD. HFD fed mice were then divided into four groups and fed for 24 weeks with: HFD-L; HFD-EVOO; HFD-OL (phenolics-rich EVOO) and R (reversion; standard diet)...
October 17, 2016: Molecular Nutrition & Food Research
Beatriz Sarriá, Sara Martínez-López, José Luis Sierra-Cinos, Luis García-Diz, Raquel Mateos, Laura Bravo-Clemente
PURPOSE: Preventive health effects of coffee could have a widespread impact on public health. Green coffee has more phenols than roasted, and thus is healthier, although with less acceptable organoleptic properties. Therefore, the effects of regularly consuming a green/roasted coffee blend (35/65) on the main components of MetS in humans were evaluated. METHODS: A crossover, randomized, controlled study was performed in 25 normocholesterolaemic and 27 hypercholesterolaemic men and women aged 18-45 years with BMI 18-25 kg/m(2)...
October 13, 2016: European Journal of Nutrition
Tatiana Moro, Grant Tinsley, Antonino Bianco, Giuseppe Marcolin, Quirico Francesco Pacelli, Giuseppe Battaglia, Antonio Palma, Paulo Gentil, Marco Neri, Antonio Paoli
BACKGROUND: Intermittent fasting (IF) is an increasingly popular dietary approach used for weight loss and overall health. While there is an increasing body of evidence demonstrating beneficial effects of IF on blood lipids and other health outcomes in the overweight and obese, limited data are available about the effect of IF in athletes. Thus, the present study sought to investigate the effects of a modified IF protocol (i.e. time-restricted feeding) during resistance training in healthy resistance-trained males...
October 13, 2016: Journal of Translational Medicine
Sedigheh Babaei, Alberto Sáez, Albert Caballero-Solares, Felipe Fernández, Isabel V Baanante, Isidoro Metón
Endocrine factors released from the central nervous system, gastrointestinal tract, adipose tissue and other peripheral organs mediate the regulation of food intake. Although many studies have evaluated the effect of fed-to-starved transition on the expression of appetite-related genes, little is known about how the expression of appetite-regulating peptides is regulated by the macronutrient composition of the diet. The aim of the present study was to examine the effect of diet composition and nutritional status on the expression of four peptides involved in food intake control in gilthead sea bream (Sparus aurata): neuropeptide Y (NPY), ghrelin, cholecystokinin (CCK) and leptin...
October 7, 2016: General and Comparative Endocrinology
Mesfin Yimam, Ping Jiao, Mei Hong, Lidia Brownell, Young-Chul Lee, Eu-Jin Hyun, Hyun-Jin Kim, Tae-Woo Kim, Jeong-Bum Nam, Mi-Ran Kim, Qi Jia
Background. Obesity and its comorbidities continue to challenge the world at an alarming rate. Although the long term solution lies on lifestyle changes in the form of dieting and exercising, drug, medical food, or dietary supplement interventions are required for those who are already obese. Here we describe a standardized blend composed of extracts from three medicinal plants: Morus alba, Yerba mate, and Magnolia officinalis for appetite suppression and metabolic disorders management. Method. Extracts were standardized to yield a composition designated as UP601...
2016: Journal of Obesity
Yumi Takemura, Masaya Sasaki, Kenichi Goto, Azusa Takaoka, Akiko Ohi, Mika Kurihara, Naoko Nakanishi, Yasutaka Nakano, Jun Hanaoka
This study aimed to investigate the energy metabolism of patients with lung cancer and the relationship between energy metabolism and proinflammatory cytokines. Twenty-eight patients with lung cancer and 18 healthy controls were enrolled in this study. The nutritional status upon admission was analyzed using nutritional screening tools and laboratory tests. The resting energy expenditure and respiratory quotient were measured using indirect calorimetry, and the predicted resting energy expenditure was calculated using the Harris-Benedict equation...
September 2016: Journal of Clinical Biochemistry and Nutrition
M Ibars, A Ardid-Ruiz, M Suárez, B Muguerza, C Bladé, G Aragonès
OBJECTIVE: Dietary obesity is usually linked with hypothalamic leptin resistance, in which the primary impact is an interference in the homeostatic control of body weight and appetite. Notably, proanthocyanidins (PACs), which are the most abundant phenolic compounds present in human diet, modulate adiposity and food intake. The aim of this study was to assess whether PACs could re-establish appropriate leptin signalling in both the hypothalamus and peripheral tissues. DESIGN: Male Wistar rats were fed either a standard chow diet (STD group, n=7) or a cafeteria diet (CD) for 13 weeks...
October 18, 2016: International Journal of Obesity: Journal of the International Association for the Study of Obesity
Stephany P Monsanto, Korry J Hintze, Robert E Ward, Deanna P Larson, Michael Lefevre, Abby D Benninghoff
In this study, we determined the impact of the total Western diet (TWD) for rodents and its macro- and micronutrient components on weight gain and biomarkers of metabolic function in mice compared to a 45% fat diet-induced obesity (DIO) diet and the standard AIN93G diet. We hypothesized that mice fed the TWD would have increased body fat with indicators of metabolic syndrome similar to mice consuming the DIO diet. As expected, DIO-fed mice acquired a metabolic syndrome phenotype typified by increased energy intake, increased body weight gain, increased fat mass, higher fasting glucose, impaired glucose tolerance, and higher plasma leptin relative to the AIN93G diet...
September 2016: Nutrition Research
Kentaro Kaneko, Pingwen Xu, Elizabeth L Cordonier, Siyu S Chen, Amy Ng, Yong Xu, Alexei Morozov, Makoto Fukuda
The CNS contributes to obesity and metabolic disease; however, the underlying neurobiological pathways remain to be fully established. Here, we show that the small GTPase Rap1 is expressed in multiple hypothalamic nuclei that control whole-body metabolism and is activated in high-fat diet (HFD)-induced obesity. Genetic ablation of CNS Rap1 protects mice from dietary obesity, glucose imbalance, and insulin resistance in the periphery and from HFD-induced neuropathological changes in the hypothalamus, including diminished cellular leptin sensitivity and increased endoplasmic reticulum (ER) stress and inflammation...
September 13, 2016: Cell Reports
Athanasios D Anastasilakis, Stergios A Polyzos, Elpida C Skouvaklidou, Georgios Kynigopoulos, Zacharias G Saridakis, Aggeliki Apostolou, Georgios A Triantafyllou, Thomai Karagiozoglou-Lampoudi, Christos S Mantzoros
PURPOSE: Follistatin may affect lean and fat mass and be implicated in metabolic diseases. We aimed to elucidate physiological predictors of circulating follistatin variation in healthy young humans. PROCEDURES: This was an observational, cross-sectional study with two additional prospective observational arms (circadian, seasonal sub-studies) and one prospective interventional arm (mixed meal sub-study). Healthy, young individuals of both sexes (n=122) were subjected to anthropometric and body composition measurements and their eating and exercise behavior profiles were assessed by validated questionnaires...
October 2016: Metabolism: Clinical and Experimental
Julia Illison, Lijun Tian, Heather McClafferty, Martin Werno, Luke H Chamberlain, Veronika Leiss, Antonia Sassmann, Stefan Offermanns, Peter Ruth, Michael J Shipston, Robert Lukowski
Elevated adipose tissue expression of the Ca(2+)- and voltage-activated K(+) (BK) channel was identified in morbidly obese men carrying a BK gene variant supporting the hypothesis that K(+) channels affect metabolic responses of fat cells to nutrients. To establish the role of endogenous BKs for fat cell maturation, storage of excess dietary fat and body-weight (BW) gain we studied a gene-targeted mouse model with a global ablation of the BK channel (BK(L1/L1)) and adipocyte-specific BK-deficient (adipoqBK(L1/L2)) mice...
September 7, 2016: Diabetes
Edward P Weiss, Dominic N Reeds, Uthayashanker R Ezekiel, Stewart G Albert, Dennis T Villareal
Dietary calorie restriction and exercise promote weight loss and may have additive effects for improving insulin sensitivity, independent of weight loss. It is not known if these effects are attributable to changes in circulating cytokines. We evaluated the hypothesis that modest, matched weight loss induced by calorie restriction and exercise have additive effects on circulating cytokines and these changes correlate with improvements in insulin sensitivity. Overweight and sedentary women and men (n = 52, 45-65 years) were randomized to undergo 7 % weight loss by using 3-6 months of calorie restriction, exercise, or a combination of both calorie restriction and exercise...
September 7, 2016: Endocrine
A D McNeilly, A Gao, A Y Hill, T Gomersall, D J K Balfour, C Sutherland, C A Stewart
Previous studies have shown that rats fed a high calorie diet rich in saturated fat for 12weeks exhibit peripheral insulin resistance and impairments of behavioural flexibility when switched from an operant delayed matching to place (DMTP) schedule to a delayed non-matching to place (DNMTP) schedule. However, the metabolic changes evoked by feeding a high fat (HF) diet can be observed within two weeks of commencing the diet. The current study has confirmed that 4weeks exposure to an HF diet resulted in increased body weight, peripheral insulin resistance and plasma leptin...
September 3, 2016: Physiology & Behavior
Sneha Sundaram, Lin Yan
The objective of this study was to determine whether a reduction in energy intake ameliorated the high-fat diet-enhanced spontaneous metastasis of Lewis lung carcinoma in mice. Male C57BL/6 mice were fed the AIN93G diet, a high-fat diet or a high-fat diet with a 5% restriction of the intake. Energy restriction reduced body adiposity and body weight, but maintained growth similar to mice fed the AIN93G diet. The high-fat diet significantly increased the number and size (cross-sectional area and volume) of metastases formed in lungs...
August 25, 2016: Oncotarget
Aisling A Geraghty, Goiuri Alberdi, Elizabeth J O'Sullivan, Eileen C O'Brien, Brenda Crosbie, Patrick J Twomey, Fionnuala M McAuliffe
BACKGROUND: The in-utero environment affects fetal development; it is vital to understand how maternal diet during pregnancy influences childhood body composition. While research indicates that triglycerides in hyperglycaemic women may increase birth weight, little is known about this relationship in euglycemic women. This study examines the relationship between maternal blood lipid status and infant adiposity up to 2 years of age. METHODS: Data from 331 mother-child pairs from the ROLO longitudinal birth cohort study was analysed...
2016: PloS One
Elena Nebot, Virginia A Aparicio, Irene Coll-Risco, Daniel Camiletti-Moirón, Johannes Schneider, Garyfallia Kapravelou, Patrick Heimel, Rosario Martínez, Ana Andrade, Paul Slezak, Heinz Redl, Jesús M Porres, María López-Jurado, Peter Pietschmann, Pilar Aranda
BACKGROUND: Weight loss is a public health concern in obesity-related diseases such as metabolic syndrome, and the protein level of the diets seem to be crucial for the development and maintenance of bone. The nature of exercise and whether exercise in combination with moderately high-protein dietary interventions could protect against potential bone mass deficits remains unclear. OBJECTIVES: To investigate the effects of a moderately high-protein diet and interval aerobic training combined with strength-endurance exercise (IASE) protocol on bone status, and to assess potential interaction effects (i...
November 2016: Bone
Lora J Rogers, Alexei G Basnakian, Mohammed S Orloff, Baitang Ning, Aiwei Yao-Borengasser, Vinay Raj, Susan Kadlubar
BACKGROUND: 2-amino-1-methyl-6-phenylimidazo(4,5-b)pyridine (PhIP), a heterocyclic aromatic amine (HCA) formed in meat that is cooked at high temperatures and then ingested, can potentially be retained in human adipose tissues. METHODS: To determine if PhIP is bioactive in the adipocyte, we exposed a human adipocyte cell line,HepG2 and Caco-2 cells to low dose PhIP. Uptake and retention of PhIP was determined and cytotoxicity was assessed by the TUNEL assay. Relative expression of PhIP-activating genes (CYP1A1, CYP1A2, SULT1A1 and UGT1A1) was determined by RT-PCR and global expression changes were also examined...
2016: Nutrition & Metabolism
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