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https://www.readbyqxmd.com/read/28228474/changes-in-ambient-temperature-elicit-divergent-control-of-metabolic-and-cardiovascular-actions-by-leptin
#1
Jussara M do Carmo, Alexandre A da Silva, Damian G Romero, John E Hall
Interactions of hypothalamic signaling pathways that control body temperature (BT), blood pressure (BP), and energy balance are poorly understood. We investigated whether the chronic BP and metabolic actions of leptin are differentially modulated by changes in ambient temperature (TA ). Mean arterial pressure (MAP), heart rate (HR), BT, motor activity (MA), and oxygen consumption (Vo2) were measured 24 h/d at normal laboratory TA (23°C), at thermoneutral zone (TNZ, 30°C) for mice or during cold exposure (15°C) in male wild-type mice...
February 22, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28162848/altered-functionality-of-the-corticotrophin-releasing-hormone-receptor-2-in-the-hypothalamic-paraventricular-nucleus-of-hyperphagic-maternally-separated-rats
#2
V Alcántara-Alonso, M I Amaya, G Matamoros-Trejo, P de Gortari
Early-life stress induces endocrine and metabolic alterations that increase food intake and overweight in adulthood. The stress response activates the corticotropin-releasing hormone (CRH) and urocortins' (Ucns) system in the hypothalamic paraventricular nucleus (PVN). These peptides induce anorexic effects through CRH-R2 receptor activation; however, chronic stressed animals develop hyperphagia despite of high PVN CRH expression. We analyzed this paradoxical behavior in adult rats subjected to maternal separation (MS) for 180min/daily during post-natal days 2-14, evaluating their body weight gain, food intake, serum corticosterone and vasopressin concentrations, PVN mRNA expression of CRH-R1, CRH-R2, CRH, Ucn2, Ucn3, vasopressin and CRH-R2 protein levels...
February 1, 2017: Neuropeptides
https://www.readbyqxmd.com/read/28159059/the-association-between-anorexia-of-aging-and-physical-frailty-results-from-the-national-center-for-geriatrics-and-gerontology-s-study-of-geriatric-syndromes
#3
Kota Tsutsumimoto, Takehiko Doi, Hyuma Makizako, Ryo Hotta, Sho Nakakubo, Keitaro Makino, Takao Suzuki, Hiroyuki Shimada
OBJECTIVES: The present study examined the association between anorexia of aging and physical frailty among older people. STUDY DESIGN: An observational, cross-sectional cohort design was used with a sample of 4417 elderly Japanese citizens living in a community setting. MAIN OUTCOME MEASURES: Frailty was operationalized as the following frailty components: slowness, weakness, exhaustion, low level of physical activity, and weight loss. Participants were grouped as non-frail, pre-frail, and frail, and categorized as anorexic or not using questionnaire cutoff scores...
March 2017: Maturitas
https://www.readbyqxmd.com/read/28133071/-primary-malignant-melanoma-of-the-gallbladder
#4
Daisuke Ujiie, Kotaro Miyamoto, Hisashi Onozawa, Nobuhiro Hoshi, Koichi Nakayama, Kojiro Urazumi, Seiichi Takenoshita, Takashi Kusakabe
Primary malignant melanoma of the gallbladder is a rare disease, and 37 cases have been reported in the literature.The current patient was a 78-year-old man who was admitted with a pelvic tumor and left leg edema due to compression of the external iliac vein by the pelvic tumor.The edema improved following resection of the tumor, which was diagnosed at pathology as a malignant melanoma.After surgery, the patient became anorexic and complained of discomfort in the upper right abdomen.A whole body FDG-PET scan demonstrated significant uptake in the gallbladder and in the lymph nodes of the lower abdomen...
November 2016: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/28104434/effects-of-human-opiorphin-on-food-intake-and-water-intake-in-mice-following-central-administration
#5
Yong Chen, Xiao-Zhu Tian, Lu Bai, Ze-Qi Liu, Xing-Peng Xiao, Pu Liu, Xiang-Kai Li
Human opiorphin plays an important pharmacological functions in rats or mice. The present study was performed to investigate effects and underlying mechanism of central injected opiorphin on food intake and water intake in mice. Intracerebroventricularly (i.c.v.) administered opiorphin (5-20μg/kg) dose-dependently suppressed food intake in fasted mice, but had no influence on food intake in freely feeding mice. The cumulative food intake was significantly decreased at 60min after injection of 10 and 20μg/kg opiorphin and the food intake was significantly reduced during the 20-60min period after treatment...
January 16, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28093305/role-of-leptin-in-conditioned-place-preference-to-high-fat-diet-in-leptin-deficient-ob-ob-mice
#6
Yoshiyuki Shimizu, Cheol Son, Daisuke Aotani, Hidenari Nomura, Takatoshi Hikida, Kiminori Hosoda, Kazuwa Nakao
Leptin is an adipocyte-derived anorexic hormone that exerts its effects via the hypothalamus and other brain regions, including the reward system. Leptin-deficient ob/ob mice that present morbid obesity, hyperphagia, insulin resistance, and infertility are one of the most investigated mouse models of obesity. Conditioned place preference (CPP) paradigm is a standard behavioral model to evaluate the rewarding value of substrates. While leptin is reported to decrease the CPP of lean mice for high fat diet (HFD), it is unknown how CPP toward HFD is affected by leptin replacement in the pathophysiological condition of ob/ob mice...
January 14, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28087222/revisiting-the-refeeding-syndrome-results-of-a-systematic-review
#7
Natalie Friedli, Zeno Stanga, Lubos Sobotka, Alison Culkin, Jens Kondrup, Alessandro Laviano, Beat Mueller, Philipp Schuetz
OBJECTIVE: Although described >70 y ago, the refeeding syndrome (RFS) remains understudied with lack of standardized definition and treatment recommendations. The aim of this systematic review was to gather evidence regarding standardized definition, incidence rate and time course of occurrence, association with adverse clinical outcomes, risk factors, and therapeutic strategies to prevent or treat this condition. METHODS: We searched MEDLINE and EMBASE for interventional and observational clinical trials focusing on RFS, excluding case reports and reviews...
June 8, 2016: Nutrition
https://www.readbyqxmd.com/read/28051332/activation-of-the-central-melanocortin-system-chronically-reduces-body-mass-without-the-necessity-of-long-term-caloric-restriction
#8
I Côté, Y Sakarya, N Kirichenko, D Morgan, C S Carter, N Tümer, P J Scarpace
Melanotan II (MTII) is a potent appetite suppressor that rapidly reduces body mass. Given the rapid loss of anorexic response upon chronic MTII treatment, most investigations have focused on the initial physiological adaptations. However, other evidence supports MTII as a long-term modulator of energy balance that remains to be established. Therefore, we examined the chronic effects of MTII on energy homeostasis. MTII (high or low dose) or artificial cerebrospinal fluid (aCSF) was infused into the lateral ventricle of the brain of 6-month-old F344BN rats (6-7/group) over 40 days...
October 19, 2016: Canadian Journal of Physiology and Pharmacology
https://www.readbyqxmd.com/read/28040488/systemic-administration-of-anorexic-gut-peptide-hormones-impairs-hedonic-driven-sucrose-consumption-in-mice
#9
Erina Yamaguchi, Yasunobu Yasoshima, Tsuyoshi Shimura
A number of reports suggest that gut hormones such as cholecystokinin (CCK), glucagon-like peptide 1 (GLP-1), and peptide YY(3-36) (PYY3-36), which are released postprandially, suppress homeostatic food intake and result in satiety and the termination of feeding. However, it remains unclear whether these peptide hormones also suppress non-homeostatic consumption of palatable foods or fluids. To examine whether gut hormones reduce hedonically motivated sugar consumption, we assessed the effects of intraperitoneal administration of these gut hormones on the consumption of a highly palatable sucrose solution, using a mouse model we previously established for binge-like sucrose overconsumption (Yasoshima and Shimura, 2015)...
December 28, 2016: Physiology & Behavior
https://www.readbyqxmd.com/read/28027941/analysis-of-pharmaceutical-adulterants-in-plant-food-supplements-by-uhplc-ms-ms
#10
Paula Paíga, Manuela J E Rodrigues, Manuela Correia, Joana S Amaral, M Beatriz P P Oliveira, Cristina Delerue-Matos
A method based on the Quick, Easy, Cheap, Effective, Rugged, and Safe (QuEChERS) extraction and ultra-high performance liquid chromatography coupled to tandem mass spectrometry (UHPLC-MS/MS) was successfully developed and validated for the analysis of 26 pharmaceutical compounds belonging to different therapeutic classes (anorexics, stimulants, anxiolytics, antidepressants and laxatives), which are all prone to be illegally added into weight-loss plant food supplements (PFS) for their pharmacological activity...
March 1, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/27981646/characterization-of-kiss1r-gpr54-expressing-neurons-in-the-arcuate-nucleus-of-the-female-rat-hypothalamus
#11
Shimpei Higo, Norio Iijima, Hitoshi Ozawa
Kisspeptin is essential in reproduction, and acts by stimulating neurons expressing gonadotropin-releasing hormone (GnRH). Recent studies suggest that kisspeptin has multiple roles in the modulation of neuronal circuits in systems outside the hypothalamic-pituitary-gonadal axis. Our recent research using in situ hybridization (ISH) clarified the histological distribution of Kiss1r (Gpr54)-expressing neurons in the rat brain which were presumed to be putative targets of kisspeptin. The arcuate nucleus (ARN) of the hypothalamus is one of the brain regions in which Kiss1r expression in non-GnRH neurons is prominent...
December 16, 2016: Journal of Neuroendocrinology
https://www.readbyqxmd.com/read/27934625/ultrasonographic-findings-in-two-sheep-with-enzootic-calcinosis
#12
U Braun, K Mitchell, S Schramm, S Nogler, J Hatt, A Malbon
This report describes 2 sheep with enzootic calcinosis characterized by abnormal cardiovascular and respiratory findings and ascites causing abdominal distension. Both sheep were anorexic and listless and had increased heart and respiratory rates. Auscultation of the heart revealed a gallop rhythm in sheep 1 and a loud systolic heart murmur in sheep 2. The activities of liver enzymes were severely increased in both sheep. Abdominal ultrasonography showed severe ascites and congestion of the liver and caudal vena cava...
December 2016: Schweizer Archiv Für Tierheilkunde
https://www.readbyqxmd.com/read/27924962/attenuation-of-unpredictable-chronic-mild-stress-induced-deficits-in-rats-by-apomorphine
#13
Muhammad Farhan, Darakshan Jabeen Haleem
OBJECTIVE: To investigate the effects of repeated doses of apomorphine in rats exposed to unpredictable chronic mild stress. METHODS: The experimental case-control study was conducted in March 2011 at the Department of Biochemistry, University of Karachi, and comprised albino-wistar rats. The experimental animals were exposed to a schedule of unpredictable chronic mild stress, while control animals were left in the cages. Animals of stressed and unstressed group were administrated with apomorphine at dose of 1...
December 2016: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/27910716/persistent-amenorrhea-and-decreased-dheas-to-cortisol-ratio-after-recovery-from-anorexia-nervosa
#14
Alessandra Andrisani, Chiara Sabbadin, Silvia Minardi, Angela Favaro, Gabriella Donà, Luciana Bordin, Guido Ambrosini, Decio Armanini
Persistent amenorrhea is a frequent condition affecting anorexic patients after stable weight recovery. It has been proposed that it could be due to alterations of the hypothalamic-pituitary-gonadal axis linked with persistent hormonal impairments, such as relative hypercortisolemia and hypoleptinemia, and psychological symptoms related to anorexia nervosa (AN). The aim of our study was to evaluate the metabolic and hormonal pattern involved in the persistence of amenorrhea after recovery from AN. Eight weight-recovered anorexic patients with amenorrhea were investigated and matched with 10 healthy eumenorrhoic women, comparable for age and BMI...
December 2, 2016: Gynecological Endocrinology
https://www.readbyqxmd.com/read/27897393/cancer-anorexia-hypothalamic-activity-and-its-association-with-inflammation-and-appetite-regulating-peptides-in-lung-cancer
#15
Alessio Molfino, Alessandro Iannace, Maria Chiara Colaiacomo, Alessio Farcomeni, Alessandra Emiliani, Gianfranco Gualdi, Alessandro Laviano, Filippo Rossi Fanelli
BACKGROUND: Energy homeostasis is mediated by the hypothalamus, whose inflammation-induced functional derangements contribute to the onset of anorexia in cancer. By using functional magnetic resonance imaging (fMRI), we determined the patterns of hypothalamic activation after oral intake in anorexic (A), non-anorexic (NA) cancer patients, and in controls (C). METHODS: Lung cancer patients were considered. Hypothalamic activation was recorded in A and NA patients and in C by fMRI, before (T0), immediately after (T1) the administration of an oral nutritional supplement, and after 15 min (T2)...
October 5, 2016: Journal of Cachexia, Sarcopenia and Muscle
https://www.readbyqxmd.com/read/27890267/-the-silence-of-a-body-and-speech-set-free
#16
Maurice Corcos
Anorexia is a reflection of issues with the body in all its states. The social body and the representation of a model's body, mistreated in order to meet certain standards, the medical body shaken by the mystery of anorexia, and the subjective body and the reality of the flesh. The anorexic body is a testament to a past full of pain and neglect, a sign of emotional deficiency. Caring for the body of a person with anorexia, whatever the approach, means also and above all working with the future of a human being...
November 2016: Soins. Psychiatrie
https://www.readbyqxmd.com/read/27883233/intranasal-insulin-boosts-gustatory-sensitivity
#17
R Rodriguez-Raecke, H Yang, Y F Bruenner, J Freiherr
Intranasal insulin has been the subject of attention not only with respect to enhancing memory processes, but also for its anorexic effects, as well as its effects on olfactory sensitivity. In the present study, the influence of intranasal insulin on gustatory sensitivity was investigated using intranasal applications of insulin or placebo in a double-blind manner alongside a control condition without any application. We hypothesised that, because it mediates satiety, intranasal insulin alters gustatory sensitivity, whereas placebo application and the control should not alter gustatory sensitivity...
January 2017: Journal of Neuroendocrinology
https://www.readbyqxmd.com/read/27834148/the-role-of-nuclear-receptor-ppar%C3%AE-in-the-sleep-wake-cycle-modulation-a-tentative-approach-for-treatment-of-sleep-disorders
#18
Eric Murillo-Rodriguez
There is a general consensus that sleep-wake cycle is controlled by neuroanatomical, neurochemical and molecular systems as well as by homeostatic and circadian complex networks. The research has shown that a molecular element that could be displaying a relevant role in the modulation of sleep is the peroxisome proliferator-activated receptor alpha (PPARα), which belongs to the family of nuclear receptor ligand-activated transcription factors that includes PPARβ/δ and PPARγ. A growing body of evidence supports the notion that PPARα is activated by natural ligands such as the anorexic lipid mediator oleoylethanolamide (OEA) or synthetic compounds including Wy14643 whereas antagonists like MK-886 block the neurobiological outcomes of PPARα...
November 9, 2016: Current Drug Delivery
https://www.readbyqxmd.com/read/27807376/the-use-of-serum-beta-hydroxybutyrate-to-determine-whether-nursery-pigs-selected-on-the-basis-of-clinical-signs-are-anorexic
#19
Amanda M Perri, Terri L O'Sullivan, John C S Harding, Robert M Friendship
The process of weaning pigs alters intestinal structures and influences piglet behavior, which can result in anorexia. When housed in large groups, affected pigs can be difficult to identify at an early stage. The clinical signs of anorexia include loss in body condition (thinness) and repetitive oral behavior (chomping). The objective of this study was to determine if pigs identified at 4 to 7 days post-weaning on the basis of clinical signs were anorexic based on elevated serum beta-hydroxybutyrate (BHB) levels (ketosis)...
November 2016: Canadian Veterinary Journal. la Revue Vétérinaire Canadienne
https://www.readbyqxmd.com/read/27778196/orthorexic-eating-behaviour-as-a-coping-strategy-in-patients-with-anorexia-nervosa
#20
Friederike Barthels, Frank Meyer, Thomas Huber, Reinhard Pietrowsky
PURPOSE: Orthorexia nervosa is defined as the fixation on health-conscious eating behaviour and has recently been discussed as a new variant of disordered eating. The aim of the present study was to analyse orthorexic eating behaviour in an inpatient treatment sample of female anorexics to investigate the relation between anorexic and orthorexic eating behaviour. METHOD: Female anorexic patients with low (n = 29) and pronounced (n = 13) orthorexic eating behaviour as well as a matched control group composed of healthy females (n = 30) were compared with regard to several aspects of disordered eating, hypochondriacal traits, food consumption frequency and fulfilment of basic psychological needs in terms of eating...
October 24, 2016: Eating and Weight Disorders: EWD
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