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leptin and intake

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https://www.readbyqxmd.com/read/28632178/an-increased-dietary-supply-of-medium-chain-fatty-acids-during-early-weaning-in-rodents-prevents-excessive-fat-accumulation-in-adulthood
#1
Bert J M van de Heijning, Annemarie Oosting, Diane Kegler, Eline M van der Beek
Medium-chain fatty acids (MCFA) are a directly and readily absorbed source of energy. Exposure early-in-life to increased MCFA levels might affect development and impact (lipid) metabolism later in life. We tested whether an increased MCFA intake early-in-life positively affects adult body composition and metabolic status when challenged by a western-style diet (WSD). Male offspring of C57Bl/6j mice and Wistar rats were fed a control diet (CTRL; 10 w% fat, 14% MCFA) or a medium-chain triglycerides (MCT) diet with 20% MCFA until postnatal (PN) day 42, whereupon animals were fed a WSD (10 w% fat) until PN day 98...
June 20, 2017: Nutrients
https://www.readbyqxmd.com/read/28629451/metabolic-response-to-three-different-diets-in-lean-cats-and-cats-predisposed-to-overweight
#2
Claudia Keller, Annette Liesegang, Diana Frey, Brigitta Wichert
BACKGROUND: The existence of a genetic predisposition to obesity is commonly recognized in humans and rodents. Recently, a link between genetics and overweight was shown in cats. The goal of this study was to identify the effect of diet composition on plasma levels of glucose, insulin, free fatty acids and triglycerides in cats receiving different diets (high-carbohydrate, high-fat and high-protein diets). RESULTS: Insulin and leptin concentrations were significantly correlated with phenotype...
June 19, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28628401/dietary-red-and-processed-meat-intake-and-markers-of-adiposity-and-inflammation-the-multiethnic-cohort-study
#3
Weiwen Chai, Yukiko Morimoto, Robert V Cooney, Adrian A Franke, Yurii B Shvetsov, Loïc Le Marchand, Christopher A Haiman, Laurence N Kolonel, Marc T Goodman, Gertraud Maskarinec
OBJECTIVE: The potential influence of dietary factors on inflammation is important for cancer prevention. Utilizing data from control participants (312 men, 911 women) in 2 nested case-control studies of cancer within the Multiethnic Cohort, we examined the associations of red and processed meat intake with serum levels of leptin, adiponectin, C-reactive protein (CRP), tumor necrosis factor (TNF)-α, and interleukin (IL)-6 and the mediator effect of body mass index (BMI) on the above associations (if present)...
June 19, 2017: Journal of the American College of Nutrition
https://www.readbyqxmd.com/read/28625709/review-and-analysis-of-physical-exercise-at-hormonal-and-brain-level-and-its-influence-on-appetite
#4
Laura Gómez Escribano, Arancha Gálvez Casas, Antonio R Escribá Fernández-Marcote, Pedro Tárraga López, Loreto Tárraga Marcos
Due to the currently growing rate of obesity, it is important to maintain good control of food intake. The main purpose of the present study is to determine the influence of physical exercise on appetite, changes in hormone concentrations, and changes in certain neuronal regions. To achieve this, a literature search was conducted using different data bases. The results show how exercise produces changes in the appetite perception, in the amount of energy intake, and in different weight-control related hormones, as well as in specific neuronal responses...
June 15, 2017: Clínica e Investigación en Arteriosclerosis
https://www.readbyqxmd.com/read/28624121/leptin-like-immunoreactivity-in-the-central-nervous-system-digestive-organs-and-gonads-of-the-giant-freshwater-prawn-macrobrachium-rosenbergii
#5
Jaruwan Poljaroen, Yotsawan Tinikul, Ruchanok Tinikul, Panat Anurucpreeda, Prasert Sobhon
Leptin, a highly conserved adipocyte-derived hormone, plays important roles in a variety of physiological processes, including the control of fat storage and metabolic status which are linked to food intake, energy homeostasis, and reproduction in all vertebrates. In the present study, we hypothesize that leptin is also present in various organs of the fresh water prawns, Macrobrachium rosenbergii. The existence and distribution of a leptin-like peptide in prawn tissues were verified by using Western blotting (WB) and immunohistochemical detection (ID) using primary antibody against human leptin...
June 14, 2017: Acta Histochemica
https://www.readbyqxmd.com/read/28622065/leptin-gene-transfer-improves-symptoms-of-type-2-diabetic-mice-by-regulating-leptin-signaling-pathway-and-insulin-resistance-of-peripheral-tissues
#6
Lan Xiang, Jing Li, Qian Wang, Ruiqi Tang, Jianhua Qi
The leptin gene was transferred into the liver of streptozocin- and high fat diet-induced type 2 diabetic (T2D) mice by hydrodynamic-based gene delivery. The food intake, water consumption, glucose concentration, and triglyceride, total cholesterol levels of T2D mice were significantly decreased. Meanwhile, plasma leptin was remarkably increased after gene transfer for 2, 3, 5, and 7 days, while plasma adiponectin was also significantly increased at day 2. To understand the mechanism of action of leptin on T2D mice, gene expressions related to glycometabolism and energy metabolism in the liver, epididymal adipose tissue, hypothalamus, and muscle were measured...
June 16, 2017: Human Gene Therapy
https://www.readbyqxmd.com/read/28619288/effects-of-exogenous-leptin-on-seasonal-reproductive-responses-to-interacting-environmental-cues-in-female-siberian-hamsters
#7
Allison M Bailey, Sandra J Legan, Vicky J Meretsky, Gregory E Demas
Animals living in temperate climates respond to environmental cues that signal current and future resource availability to ensure that energy resources are available to support reproduction. Siberian hamsters (Phodopus sungorus) undergo robust gonadal regression in short, winter-like photoperiods as well as in response to mild food restriction in intermediate photoperiods. The goal of the present study was to investigate whether leptin is a relevant metabolic signal in regulating gonadal regression in response to diminishing food availability...
June 12, 2017: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/28619118/serum-levels-of-leptin-and-high-molecular-weight-adiponectin-are-inversely-associated-with-radiographic-spinal-progression-in-patients-with-ankylosing-spondylitis-results-from-the-enradas-trial
#8
Agnes Hartl, Joachim Sieper, Uta Syrbe, Joachim Listing, Kay-Geert Hermann, Martin Rudwaleit, Denis Poddubnyy
BACKGROUND: Previous research indicates a role of adipokines in inflammation and osteogenesis. Hence adipokines might also have a pathophysiological role in inflammation and new bone formation in patients with ankylosing spondylitis (AS). The aim of this study was to investigate the role of adipokine serum levels as predictors of radiographic spinal progression in patients with AS. METHODS: A total of 120 patients with definite AS who completed a 2-year follow up in the ENRADAS trial were included in the current study...
June 15, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28617052/neotomodon-alstoni-mice-present-sex-differences-between-lean-and-obese-in-daily-hypothalamic-leptin-signaling
#9
Moisés Pérez-Mendoza, Dalia Luna-Moreno, Agustín Carmona-Castro, Hugo A Rodríguez-Guadarrama, Luis M Montoya-Gómez, Mauricio Díaz-Muñoz, Manuel Miranda-Anaya
This article compared the effects of spontaneous obesity on the daily profile in the relative amount of the leptin receptor (LepRb), and its output. That is the precursor Pro-opiomelanocortin (POMC) over a 24-hour period and compared with differences in locomotion and food intake in periods of artificial light. Differences between lean and obese mice were examined, as were sex differences. Body weight, food intake and locomotor activity were monitored in freely moving lean and obese mice. Hypothalamic tissue was collected at 5 h, 10 h, 15 h, 19 h and 24 h...
June 15, 2017: Chronobiology International
https://www.readbyqxmd.com/read/28611581/glial-endozepines-inhibit-feeding-related-autonomic-functions-by-acting-at-the-brainstem-level
#10
Florent Guillebaud, Clémence Girardet, Anne Abysique, Stéphanie Gaigé, Rym Barbouche, Jérémy Verneuil, André Jean, Jérôme Leprince, Marie-Christine Tonon, Michel Dallaporta, Bruno Lebrun, Jean-Denis Troadec
Endozepines are endogenous ligands for the benzodiazepine receptors and also target a still unidentified GPCR. The endozepine octadecaneuropeptide (ODN), an endoproteolytic processing product of the diazepam-binding inhibitor (DBI) was recently shown to be involved in food intake control as an anorexigenic factor through ODN-GPCR signaling and mobilization of the melanocortinergic signaling pathway. Within the hypothalamus, the DBI gene is mainly expressed by non-neuronal cells such as ependymocytes, tanycytes, and protoplasmic astrocytes, at levels depending on the nutritional status...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28610999/changes-in-faecal-bacteria-during-fattening-in-finishing-swine
#11
Tomomi Ban-Tokuda, Sakiko Maekawa, Takehiro Miwa, Sou Ohkawara, Hiroki Matsui
Body fat accumulation in mice and human is linked to the percentage of Firmicutes and Bacteroidetes, two bacterial phyla dominant in the large intestine. However, little is known about the relationship between the composition of the gut microbiota and fattening in pig. This study aimed to investigate the abundance of Firmicutes, Bacteroidetes, and Bacteroides, which is the major genus within Bacteroidetes, in porcine faeces during fattening. Ten 4-month-old crossbred pigs were given free access to commercial feed for fattening and water for 14 weeks...
June 10, 2017: Anaerobe
https://www.readbyqxmd.com/read/28604591/influence-of-hot-and-cold-environments-on-the-regulation-of-energy-balance-following-a-single-exercise-session-a-mini-review
#12
REVIEW
Keyne Charlot, Cécile Faure, Sophie Antoine-Jonville
Understanding the regulation of human food intake in response to an acute exercise session is of importance for interventions with athletes and soldiers, as well as overweight individuals. However, the influence of hot and cold environments on this crucial function for the regulation of body mass and motor performance has not been summarized. The purpose of this review was to exhaustively search the literature on the effect of ambient temperature during an exercise session on the subsequent subjective feeling of appetite, energy intake (EI) and its regulation...
June 10, 2017: Nutrients
https://www.readbyqxmd.com/read/28603178/role-of-adipokines-in-cardiovascular-disease
#13
Wayne Bond Lau, Koji Ohashi, Yajing Wang, Hayato Ogawa, Toyoaki Murohara, Xin-Liang Ma, Noriyuki Ouchi
Cardiovascular disease (CVD) is the greatest cause of death, accounting for nearly one-third of all deaths worldwide. The increase in obesity rates over 3 decades is widespread and threatens the public health in both developed and developing countries. Obesity, the excessive accumulation of visceral fat, causes the clustering of metabolic disorders, such as type 2 diabetes, dyslipidemia, and hypertension, culminating in the development of CVD. Adipose tissue is not only an energy storage organ, but an active endocrine tissue producing various biologically active proteins known as adipokines...
June 10, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28602634/dp1-receptor-agonist-bw245c-inhibits-diet-induced-obesity-in-apoe-mice
#14
Sunil Kumar, Thomas Palaia, Christopher Hall, Louis Ragolia
BACKGROUND/OBJECTIVE: Lipocalin Prostaglandin D2 synthase (LPGDS) contributes to the production of PGD2, which has been associated with adipogenesis. In this study, we aimed to investigate the role of PGD2 on obesity through its DP1 and DP2 receptor signaling using intraperitoneal injection of their respective agonists and antagonists. METHODS: ApoE(-/-) mice were divided into five groups: vehicle control (n=5), DP1 receptor agonist (n=5), DP1 receptor antagonist (n=5), DP2 receptor agonist (n=5), and DP2 receptor antagonist (n=5), and the study was carried out for 10 weeks...
June 8, 2017: Obesity Research & Clinical Practice
https://www.readbyqxmd.com/read/28598548/eating-behavior-during-dexamethasone-treatment-in-children-with-acute-lymphoblastic-leukemia
#15
Lidewij T Warris, Erica L T van den Akker, Marc B Bierings, Cor van den Bos, Femke K Aarsen, Michel C Zwaan, Wim J E Tissing, Margreet A Veening, Rob Pieters, Marry M van den Heuvel-Eibrink
BACKGROUND AND AIM: Large prospective studies on dexamethasone-induced changes in eating behavior, energy, and nutrient intake are lacking in pediatric acute lymphoblastic leukemia (ALL). We prospectively studied eating behavior, energy, nutrient intake, and the effect on leptin and adiponectin levels during dexamethasone administration in children with ALL. PATIENTS: Parents of patients with ALL (3-16 years) completed a dietary diary for their child during 4 days of dexamethasone (6 mg/m(2) ) administration...
June 9, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28596183/leptogenic-effects-of-n-acyl-phosphatidylethanolamine-nape-requires-activity-of-n-acylphosphatidylethanolamine-hydrolyzing-phospholipase-d-nape-pld
#16
Zhongyi Chen, Yongqin Zhang, Lilu Guo, Noura Dosoky, Lorenzo De Ferra, Scott Peters, Kevin D Niswender, Sean S Davies
Food intake induces synthesis of N-acylphosphatidylethanolamines (NAPEs) in the intestinal tract. While NAPEs exert leptin-like (leptogenic) effects including reduced food intake and weight gain, the mechanisms by which NAPEs induce these leptogenic effects remain unclear. One key question is whether intestinal NAPEs act directly on cognate receptors or first require conversion to N-acylethanolamides (NAEs) by NAPE-hydrolyzing phospholipase D (NAPE-PLD). Previous studies using Nape-pld-/- mice were equivocal because intraperitoneal injection of NAPEs led to non-specific, aversive effects...
June 8, 2017: Journal of Lipid Research
https://www.readbyqxmd.com/read/28592656/hypothalamic-circuits-regulating-appetite-and-energy-homeostasis-pathways-to-obesity
#17
REVIEW
Katharina Timper, Jens C Brüning
The 'obesity epidemic' represents a major global socioeconomic burden that urgently calls for a better understanding of the underlying causes of increased weight gain and its associated metabolic comorbidities, such as type 2 diabetes mellitus and cardiovascular diseases. Improving our understanding of the cellular basis of obesity could set the stage for the development of new therapeutic strategies. The CNS plays a pivotal role in the regulation of energy and glucose homeostasis. Distinct neuronal cell populations, particularly within the arcuate nucleus of the hypothalamus, sense the nutrient status of the organism and integrate signals from peripheral hormones including pancreas-derived insulin and adipocyte-derived leptin to regulate calorie intake, glucose metabolism and energy expenditure...
June 1, 2017: Disease Models & Mechanisms
https://www.readbyqxmd.com/read/28587203/effect-of-n-3-polyunsaturated-fatty-acid-supplementation-on-metabolic-and-inflammatory-biomarkers-in-type-2-diabetes-mellitus-patients
#18
M Gorety Jacobo-Cejudo, Roxana Valdés-Ramos, Ana L Guadarrama-López, Rosa-Virgen Pardo-Morales, Beatriz E Martínez-Carrillo, Laurence S Harbige
BACKGROUND: Type 2 diabetes mellitus (T2DM) is accompanied by chronic low-grade inflammation, with an imbalance in the secretion of adipokines and, worsening insulin resistance. Supplementation with n-3 PUFA in T2DM decreases inflammatory markers, the purpose of the study was to investigate the effect of n-3 PUFA supplementation on adipokines, metabolic control, and lipid profile in T2DM Mexican adults. METHODS: In a randomized, single-blind, placebo-controlled pilot study, 54 patients with T2DM received 520 mg of DHA + EPA-enriched fish-oil (FOG) or a placebo (PG) daily...
June 3, 2017: Nutrients
https://www.readbyqxmd.com/read/28586744/protective-effects-of-green-tea-on-olanzapine-induced-metabolic-syndrome-in-rats
#19
Bibi Marjan Razavi, Fariba Lookian, Hossein Hosseinzadeh
Atypical antipsychotics particularly olanzapine are associated with obesity and serious metabolic disturbances. As green tea (Camellia sinensis) is generally associated with beneficial effects on obesity and other metabolic disturbances, this study was undertaken to evaluate the effect of green tea aqueous extract (GTAE) on olanzapine induced weight gain and metabolic abnormalities in rats. Male Wistar rats were divided into eight groups: control, olanzapine (5mg/kg/day, IP.), GTAE (25, 50 and 100mg/kg/day, IP...
June 3, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28586412/high-fat-diet-and-female-fertility
#20
Natalie M Hohos, Malgorzata E Skaznik-Wikiel
The prevalence of obesity is high among reproductive age women and is associated with impaired reproductive function. Obesity is multifactorial in origin, yet many cases of obesity result from overconsumption of a diet high in fat. Excess dietary fat increases both adipose and non-adipose tissue lipid content, and through lipotoxicity leads to cell dysfunction and death. High dietary fat intake, with or without the development of obesity, impairs female hypothalamic-pituitary-ovarian (HPO) axis functionality and fertility...
June 6, 2017: Endocrinology
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