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https://www.readbyqxmd.com/read/28814306/blood-acid-base-status-in-impala-aepyceros-melampus-immobilised-and-maintained-under-total-intravenous-anaesthesia-using-two-different-drug-protocols
#1
Gareth E Zeiler, Leith C R Meyer
BACKGROUND: In mammals, homeostasis and survival are dependent on effective trans-membrane movement of ions and enzyme function, which are labile to extreme acid-base changes, but operate efficiently within a narrow regulated pH range. Research in patients demonstrating a pH shifts outside the narrow regulated range decreased the cardiac output and systemic vascular resistance and altered the oxygen binding to haemoglobin. These cardiopulmonary observations may be applicable to the risks associated with anaesthesia and performance of wildlife ungulates on game farms...
August 16, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28801760/the-need-for-authenticity-based-autonomy-in-medical-ethics
#2
Lucie White
The notion of respect for autonomy dominates bioethical discussion, though what qualifies precisely as autonomous action is notoriously elusive. In recent decades, the notion of autonomy in medical contexts has often been defined in opposition to the notion of autonomy favoured by theoretical philosophers. Where many contemporary theoretical accounts of autonomy place emphasis on a condition of "authenticity", the special relation a desire must have to the self, bioethicists often regard such a focus as irrelevant to the concerns of medical ethics, and too stringent for use in practical contexts...
August 11, 2017: HEC Forum: An Interdisciplinary Journal on Hospitals' Ethical and Legal Issues
https://www.readbyqxmd.com/read/28801262/the-physiological-and-pathophysiological-roles-of-taurine-in-adipose-tissue-in-relation-to-obesity
#3
REVIEW
Shigeru Murakami
Obesity is caused by an imbalance between energy intake and energy expenditure. It is established that obesity is a state of low-grade chronic inflammation, which is characterized by enlarged hypertrophied adipocytes, increased infiltration by macrophages and marked changes in the secretion of adipokines and free fatty acids. The effects of taurine on the pathogenesis of obesity have been reported in animals and humans. Although the mechanisms underlying the anti-obesity action of taurine remain to be defined, taurine seems to ameliorate obesity through stimulation of energy expenditure, modulation of lipid metabolism, anorexic effect, anti-inflammatory and anti-oxidative effects...
August 8, 2017: Life Sciences
https://www.readbyqxmd.com/read/28795600/the-weight-of-the-matter-a-new-material-feminist-account-of-thin-and-fat-oppressions
#4
Moss Edward Norman, Fiona J Moola
Critical feminist approaches to eating disorders and "obesity" have recently come under criticism for relying too heavily on textual- and image-based analyses of health, identity and body weight, shape, and size. In this article, we examine qualitative interviews with self-identified anorexic and "obese" women using a new material feminist lens-particularly the work of Karen Barad-to see what this perspective contributes to conceptualizations of weight-based oppressions. In addition to outlining how the material world actively participates in ongoing processes of oppression, we also highlight how the body presses back, offering up potentially less oppressive processes of materialization...
August 1, 2017: Health (London)
https://www.readbyqxmd.com/read/28727208/differential-expression-of-appetite-regulating-genes-in-avian-models-of-anorexia-and-obesity
#5
Jiaqing Yi, Jingwei Yuan, Elizabeth R Gilbert, Paul B Siegel, Mark A Cline
Chickens from lines that have been selected for low (LWS) or high (HWS) juvenile body weight for more than 57 generations provide a unique model to research appetite regulation. The LWS display different severities of anorexia while all HWS become obese. Herein we measured mRNA abundance of various factors in appetite-associated nuclei in the hypothalamus. The lateral hypothalamus (LHA), paraventricular nucleus (PVN), ventromedial hypothalamus (VMH), dorsomedial nucleus (DMN), and arcuate nucleus (ARC) were collected from 5 day-old chicks that were fasted for 180 minutes or provided continuous access to food...
July 20, 2017: Journal of Neuroendocrinology
https://www.readbyqxmd.com/read/28645611/activation-of-central-nesfatin-1-nucb2-after-intraperitoneally-administered-cisplatin-in-rats
#6
Yasuki Akiyama, Mitsuhiro Yoshimura, Kazuaki Nishimura, Haruki Nishimura, Satomi Sonoda, Hiromichi Ueno, Yasuhito Mitojima, Reiko Saito, Takashi Maruyama, Yuki Nonaka, Hirofumi Hashimoto, Yasuhito Uezono, Keiji Hirata, Yoichi Ueta
Cisplatin, known as an anticancer drug, has been widely used; however, diverse disadvantageous side effects, including appetite loss, afflict patients. Nesfatin-1/NucB2, discovered as an anorexic neuropeptide, is broadly expressed in the central nervous system (CNS) and peripheral organ. In the present study, we examined the effects of intraperitoneally (i.p.) administered cisplatin on central nesfatin-1/NucB2. Saline, as control, or cisplatin (6 mg/kg dissolved in saline) was i.p. administered in adult male Wistar rats (180-220 g)...
August 26, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28639048/evaluating-anorexia-related-brain-atrophy-using-mp2rage-based-morphometry
#7
José Boto, Georgios Gkinis, Alexis Roche, Tobias Kober, Bénédicte Maréchal, Nadia Ortiz, Karl-Olof Lövblad, François Lazeyras, Maria Isabel Vargas
AIM: To evaluate brain atrophy in anorexic patients by automated cerebral segmentation with the magnetization-prepared 2 rapid acquisition gradient echo (MP2RAGE) MRI sequence. MATERIAL AND METHODS: Twenty patients (female; mean age, 27.9 years), presenting consecutively for brain MRI between August 2014-December 2016 with clinical suspicion of anorexia nervosa and BMI<18.5 kg/m(2) were included. Controls were ten healthy females (mean age, 26.5 years). Automated brain morphometry was performed based on MP2RAGE...
June 21, 2017: European Radiology
https://www.readbyqxmd.com/read/28627209/anorexia-y-bulimia-nerviosas-difusi%C3%A3-n-virtual-de-la-enfermedad-como-estilo-de-vida
#8
Gina Lladó, Rocío González-Soltero, María José Blanco Fernández de Valderrama
Introducción: la adolescencia es un periodo vulnerable para padecer trastornos de la conducta alimentaria (TCA) como la anorexia y la bulimia nerviosas. La insatisfacción corporal, uno de los factores precipitantes de los TCA, conduce a las adolescentes a la búsqueda de información sobre dietas en internet. En este contexto, las páginas pro-Ana (proanorexia) y pro-Mía (probulimia) difunden contenidos altamente perjudiciales para la salud relacionados con la pérdida de peso y los TCA.Objetivos: en el presente trabajo se analizan la cantidad, el posicionamiento, la calidad y la difusión de las páginas pro-Ana y pro-Mía...
June 5, 2017: Nutrición Hospitalaria: Organo Oficial de la Sociedad Española de Nutrición Parenteral y Enteral
https://www.readbyqxmd.com/read/28588096/cns-%C3%AE-3-adrenergic-receptor-activation-regulates-feeding-behavior-white-fat-browning-and-body-weight
#9
Jennifer E Richard, Lorena López-Ferreras, Belén Chanclón, Kim Eerola, Peter Micallef, Karolina P Skibicka, Ingrid Wernstedt Asterholm
Pharmacological β3-adrenergic receptor (β3AR) activation leads to increased mitochondrial biogenesis and activity in white adipose tissue (WAT), a process commonly referred to as "browning", and transiently increased insulin release. These effects are associated with improved metabolic function and weight loss. It is assumed that this impact of β3AR agonists is mediated solely through activation of β3ARs in adipose tissue. However, β3ARs are also found in the brain, in areas such as the brainstem and hypothalamus that provide multisynaptic innervation to brown and white adipose depots...
June 6, 2017: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28581479/cancer-induced-anorexia-and-malaise-are-mediated-by-cgrp-neurons-in-the-parabrachial-nucleus
#10
Carlos A Campos, Anna J Bowen, Sung Han, Brent E Wisse, Richard D Palmiter, Michael W Schwartz
Anorexia is a common manifestation of chronic diseases, including cancer. Here we investigate the contribution to cancer anorexia made by calcitonin gene-related peptide (CGRP) neurons in the parabrachial nucleus (PBN) that transmit anorexic signals. We show that CGRP(PBN) neurons are activated in mice implanted with Lewis lung carcinoma cells. Inactivation of CGRP(PBN) neurons before tumor implantation prevents anorexia and loss of lean mass, and their inhibition after symptom onset reverses anorexia. CGRP(PBN) neurons are also activated in Apc(min/+) mice, which develop intestinal cancer and lose weight despite the absence of reduced food intake...
July 2017: Nature Neuroscience
https://www.readbyqxmd.com/read/28561272/cannabinoid-cb1-cb2-receptor-agonists-attenuate-hyperactivity-and-body-weight-loss-in-a-rat-model-of-activity-based-anorexia
#11
Maria Scherma, Valentina Satta, Roberto Collu, Maria Francesca Boi, Paolo Usai, Walter Fratta, Paola Fadda
BACKGROUND AND PURPOSE: Anorexia nervosa (AN) is a serious psychiatric condition characterized by excessive body weight loss and disturbed perceptions of body shape and size, often associated with excessive physical activity. There is currently no effective drug-related therapy of this disease and this leads to high relapse rate. Clinical data suggest that a promising therapy to treat and reduce reoccurrence of AN may be based on the use of drugs that target the endocannabinoid (EC) system, which appears dysregulated in AN patients...
August 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28558993/estradiol-modulates-the-anorexic-response-to-central-glucagon-like-peptide-1
#12
Calyn B Maske, Christine M Jackson, Sarah J Terrill, Lisa A Eckel, Diana L Williams
Estrogens suppress feeding in part by enhancing the response to satiation signals. Glucagon-like peptide 1 (GLP-1) acts on receptor populations both peripherally and centrally to affect food intake. We hypothesized that modulation of the central GLP-1 system is one of the mechanisms underlying the effects of estrogens on feeding. We assessed the anorexic effect of 0, 1, and 10μg doses of GLP-1 administered into the lateral ventricle of bilaterally ovariectomized (OVX) female rats on a cyclic regimen of either 2μg β-estradiol-3-benzoate (EB) or oil vehicle 30min prior to dark onset on the day following hormone treatment...
July 2017: Hormones and Behavior
https://www.readbyqxmd.com/read/28522087/mazindol-a-risk-factor-for-pulmonary-arterial-hypertension
#13
Eric Konofal, Cherine Benzouid, Christophe Delclaux, Michel Lecendreux, Elizabeth Hussey
Mazindol is an imidazo-isoindole derivative, a tricyclic compound and a non-amphetamine central nervous system stimulant that blocks dopamine and norepinephrine reuptake. Mazindol was withdrawn from the US and European markets in 1999 for reasons unrelated to its efficacy or safety around a time when other anorexic drugs were found to be associated with the development of pulmonary arterial hypertension (PAH). Despite the use of mazindol for decades, reports of PAH due to mazindol intake have been extremely rare...
June 2017: Sleep Medicine
https://www.readbyqxmd.com/read/28511240/-treatment-outcome-in-female-in-patients-with-anorexia-nervosa-and-comorbid-personality-disorders-prevalence
#14
Timo Maximilian Link, Ursula Beermann, Robert Mestel, Manuela Gander
Introduction Personality disorders (PD) are among the most common comorbid disorders in female patients with Anorexia Nervosa (AN). Recent research findings suggest that comorbid PD are associated with a higher treatment drop-out rate and a worse therapeutic outcome. However, no study to date has distinguished between certain age groups concerning these issues. Research questions Therefore, the present study focuses on the prevalence of PD (1), treatment drop-out rates (2) and weight gain (3) in female in-patients with AN...
May 16, 2017: Psychotherapie, Psychosomatik, Medizinische Psychologie
https://www.readbyqxmd.com/read/28500826/serum-kisspeptin-concentrations-are-negatively-correlated-with-body-mass-index-in-adolescents-with-anorexia-nervosa-and-amenorrhea
#15
Flora Bacopoulou, George I Lambrou, Maria-Evangelia Rodanaki, Evgenia Stergioti, Vasiliki Efthymiou, Efthymios Deligeoroglou, Sophia I Markantonis
OBJECTIVE: To measure, for the first time, serum kisspeptin concentrations in adolescent females with anorexia nervosa (AN) and associated amenorrhea, and investigate potential correlations of kisspeptin with anthropometric, bone and hormonal data. DESIGN: Setting: University Adolescent Medicine Center. PARTICIPANTS: Females aged 12-20 years with typical or atypical AN (based on DSM-5 diagnostic criteria) and controls. INTERVENTIONS: Measurement of body mass index (BMI), whole body/lumbar spine bone mineral density and serum concentrations of kisspeptin, follicle stimulating hormone, luteinizing hormone (LH), prolactin (PRL), thyroid stimulating hormone (TSH), free thyroxine, triiodothyronine, estradiol (E2), 17-hydroxyprogesterone...
January 2017: Hormones: International Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28498046/social-media-propagation-of-content-promoting-risky-health-behavior
#16
Mina Park, Yao Sun, Margaret L McLaughlin
While social media have been found useful in providing social support and health information, they have also been home to content advocating risky health behavior. This study focused on how content defending and even celebrating anorexia as a lifestyle are circulated among social media users, and investigates the characteristics that promote wide propagation of such messages. We captured anorexia-related content on Tumblr, a popular blog for talking about eating disorders, during a one-month period. Among the 35,432 posts collected, we examined the most highly propagated posts and coded them for message characteristics...
May 2017: Cyberpsychology, Behavior and Social Networking
https://www.readbyqxmd.com/read/28485050/y5-receptor-signalling-counteracts-the-anorectic-effects-of-pyy3-36-in-diet-induced-obese-mice
#17
Yan-Chuan Shi, Chi Kin Ip, Felicia Reed, David A Sarruf, Birgitte S Wulff, Herbert Herzog
Peptide YY 3-36 (PYY3-36) is known as a critical satiety factor reducing food intake both in rodents and humans. While the anorexic effect of PYY3-36 is thought to be mediated mainly by the Y2 receptor, the involvement of other Y-receptors in this process has never been conclusively resolved. Amongst them the Y5 receptor (Y5R) is the most likely candidate to also be a target for PYY3-36 which is thought to counteract the anorectic effects of Y2R activation. Here we show that short term treatment of diet induced obese WT and Y5R knockout mice (Y5KO) with PYY3-36 leads to significantly reduced food intake in both genotypes, which is more pronounced in Y5R KO mice...
May 9, 2017: Journal of Neuroendocrinology
https://www.readbyqxmd.com/read/28428639/obestatin-stimulates-glucose-induced-insulin-secretion-through-ghrelin-receptor-ghs-r
#18
Geetali Pradhan, Chia-Shan Wu, Jong Han Lee, Preeti Kanikarla, Shaodong Guo, Vijay K Yechoor, Susan L Samson, Yuxiang Sun
Orexigenic hormone ghrelin and anorexic hormone obestatin are encoded by the same preproghrelin gene. While it is known that ghrelin inhibits glucose-stimulated insulin secretion (GSIS), the effect of obestatin on GSIS is unclear. Ghrelin's effect is mediated by its receptor Growth Hormone Secretagogue Receptor (GHS-R), but the physiologically relevant receptor of obestatin remains debatable. Here we have investigated the effect of obestatin on GSIS in vitro, in vivo and ex vivo, and tested whether obestatin regulates insulin secretion through GHS-R...
April 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28424379/-risk-factors-of-eating-disorders-in-the-narratives-of-fashion-models
#19
Nikolett Bogár, Ferenc Túry
INTRODUCTION: The risk of eating disorders is high in populations who are exposed to slimness ideal, so among fashion models. The present qualitative study evaluates the risk factors of eating disorders in a group of fashion models with semistructured interview. Moreover, the aim of the study was to examine the impact of professional requirements on the health of models. METHODS: The study group was internationally heterogeneous. The models were involved by personal professional relationship...
2017: Psychiatria Hungarica: A Magyar Pszichiátriai Társaság Tudományos Folyóirata
https://www.readbyqxmd.com/read/28413180/role-of-hormone-sensitive-lipase-in-leptin-promoted-fat-loss-and-glucose-lowering
#20
Mikio Takanashi, Yoshino Taira, Sachiko Okazaki, Satoru Takase, Takeshi Kimura, Cheng Cheng Li, Peng Fei Xu, Akari Noda, Ichiro Sakata, Hidetoshi Kumagai, Yuichi Ikeda, Yoko Iizuka, Naoya Yahagi, Hitoshi Shimano, Jun-Ichi Osuga, Shun Ishibashi, Takashi Kadowaki, Hiroaki Okazaki
AIM: Myriad biological effects of leptin may lead to broad therapeutic applications for various metabolic diseases, including diabetes and its complications; however, in contrast to its anorexic effect, the molecular mechanisms underlying adipopenic and glucose-lowering effects of leptin have not been fully understood. Here we aim to clarify the role of hormone-sensitive lipase (HSL) in leptin's action. METHODS: Wild-type (WT) and HSL-deficient (HSLKO) mice were made hyperleptinemic by two commonly-used methods: adenovirus-mediated overexpression of leptin and continuous subcutaneous infusion of leptin by osmotic pumps...
April 12, 2017: Journal of Atherosclerosis and Thrombosis
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