keyword
MENU ▼
Read by QxMD icon Read
search

Hypothalamic Obesity

keyword
https://www.readbyqxmd.com/read/29788009/the-effect-of-feeding-behavior-on-hypothalamus-in-obese-type-2-diabetic-rats-with-glucagon-like-peptide-1-receptor-agonist-intervention
#1
Ke Lu, Xiaoyan Chen, Jianhua Yan, Xinchun Li, Chen Huang, Qi Wan, Xuelian Deng, Qiao Zou
OBJECTIVE: To investigate the utility of intravoxel incoherent motion-diffusion weighted imaging (IVIM-DWI) derived parameters in hypothalamus for monitoring the effect of Exendin-4 (Ex-4) intervention on the feeding behavior in obese diabetic rats within early feeding. METHODS: 21 obese and 19 non-obese rats which were treated with streptozotocin injections were initially divided into an obese diabetes group (OD, n = 10), a non-obese diabetes group (D, n = 8), an obese group (O, n = 9) and a non-obese group (N, n = 9)...
May 23, 2018: Obesity Facts
https://www.readbyqxmd.com/read/29785640/switching-from-high-fat-diet-to-foods-containing-resveratrol-as-a-calorie-restriction-mimetic-changes-the-architecture-of-arcuate-nucleus-to-produce-more-newborn-anorexigenic-neurons
#2
Maryam Safahani, Hadi Aligholi, Farshid Noorbakhsh, Mahmoud Djalali, Hamideh Pishva, Sayed Mostafa Modarres Mousavi, Leila Alizadeh, Ali Gorji, Fariba Koohdani
PURPOSE: These days, obesity threatens the health for which one of the main interventions is calorie restriction (CR). Due to the difficulty of compliance with this treatment, CR mimetics such as resveratrol (RSV) have been considered. The present study compared the effects of RSV and CR on hypothalamic remodeling in a diet-switching experiment. METHODS: C57BL/6 male mice received high-fat diet (HFD) for 4 weeks, subsequently their diet switched to chow diet, HFD + RSV, chow diet + RSV or CR diet for a further 6 weeks...
May 21, 2018: European Journal of Nutrition
https://www.readbyqxmd.com/read/29785038/reduced-peak-stimulated-growth-hormone-is-associated-with-hyperuricemia-in-obese-children-and-adolescents
#3
Shuang Liang, Dejian Zhang, Jianhong Qi, Xiaobo Song, Jiang Xue
The purpose of the study is to investigate whether reduced peak GH response to arginine-levodopa test is associated with hyperuricemia in obese children and adolescents. The study population consisted of a total sample of 78 obese and 30 normal-weight children and adolescents without known hypopituitarism. All participants underwent clinical examination and GH stimulation testing. IGF-1, lipid profile and other metabolic markers were assessed. The obese subjects were then divided into two groups according to the serum levels of uric acid...
May 21, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29777232/maternal-overnutrition-programs-epigenetic-changes-in-the-regulatory-regions-of-hypothalamic-pomc-in-the-offspring-of-rats
#4
Thanuja Gali Ramamoorthy, Tiffany-Jayne Allen, Alison Davies, Erika Harno, Charlotte Sefton, Christopher Murgatroyd, Anne White
BACKGROUND AND OBJECTIVE: Maternal overnutrition has been implicated in affecting the offspring by programming metabolic disorders such as obesity and diabetes, by mechanisms that are not clearly understood. This study aimed to determine the long-term impact of maternal high-fat (HF) diet feeding on epigenetic changes in the offspring's hypothalamic Pomc gene, coding a key factor in the control of energy balance. Further, it aimed to study the additional effects of postnatal overnutrition on epigenetic programming by maternal nutrition...
May 17, 2018: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/29771336/fto-is-a-transcriptional-repressor-to-auto-regulate-its-own-gene-and-potentially-associated-with-homeostasis-of-body-weight
#5
Shu-Jing Liu, Hui-Ling Tang, Qian He, Ping Lu, Tao Fu, Xu-Ling Xu, Tao Su, Mei-Mei Gao, Shumin Duan, Yan Luo, Yue-Sheng Long
Fat mass and obesity-associated (FTO) protein is a ferrous ion (Fe2+)/2-oxoglutarate (2-OG)-dependent demethylase preferentially catalyzing m6A sites in RNA. The FTO gene is highly expressed in the hypothalamus with fluctuation in response to various nutritional conditions, which is believed to be involved in the control of whole body metabolism. However, the underlying mechanism in response to different nutritional cues remains poorly understood. Here we show that ketogenic diet-derived ketone body β-hydroxybutyrate (BHB) transiently increases FTO expression in both mouse hypothalamus and cultured cells...
May 16, 2018: Journal of Molecular Cell Biology
https://www.readbyqxmd.com/read/29760677/one-week-exposure-to-a-free-choice-high-fat-high-sugar-diet-does-not-interfere-with-the-lipopolysaccharide-induced-acute-phase-response-in-the-hypothalamus-of-male-rats
#6
Evita Belegri, Leslie Eggels, Susanne E la Fleur, Anita Boelen
Obesity has been associated with increased susceptibility to infection in humans and rodents. Obesity is also associated with low-grade hypothalamic inflammation that depends not only on body weight but also on diet. In the present study, we investigated if the bacterial endotoxin [lipopolysaccharide (LPS)]-induced acute phase response is aggravated in rats on a 1-week free-choice high-fat high-sugar (fcHFHS) diet and explained by diet-induced hypothalamic inflammation. Male Wistar rats were on an fcHFHS diet or chow for 1 week and afterwards intraperitoneally injected with LPS or saline...
2018: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/29750244/regulation-of-hepatic-lipid-accumulation-and-distribution-by-agouti-related-protein-in-male-mice
#7
Matthew T Maier, Anna Vilhelmsson, Sharon M Louie, Eirini Vagena, Daniel K Nomura, Suneil K Koliwad, Allison W Xu
Proper regulation of energy metabolism requires CNS neurons to respond dynamically to signals that reflect the body's energy reserve, and one such signal is leptin. Agouti-related protein (AgRP) is a hypothalamic neuropeptide that is markedly upregulated in leptin deficiency, a condition that is associated with severe obesity, diabetes and hepatic steatosis. Since deleting AgRP in mice does not alter energy balance, we sought to determine whether AgRP plays an indispensable role in regulating energy and hepatic lipid metabolism in the sensitized background of leptin deficiency...
May 9, 2018: Endocrinology
https://www.readbyqxmd.com/read/29748097/time-resolved-hypothalamic-open-flow-micro-perfusion-reveals-normal-leptin-transport-across-the-blood-brain-barrier-in-leptin-resistant-mice
#8
Maximilian Kleinert, Petra Kotzbeck, Thomas Altendorfer-Kroath, Thomas Birngruber, Matthias H Tschöp, Christoffer Clemmensen
OBJECTIVE: The inability of leptin to suppress food intake in diet-induced obesity, sometimes referred to as leptin resistance, is associated with several distinct pathological hallmarks. One prevailing theory is that impaired transport of leptin across the blood-brain barrier (BBB) represents a molecular mechanism that triggers this phenomenon. Recent evidence, however, has challenged this notion, suggesting that leptin BBB transport is acquired during leptin resistance. METHODS: To resolve this debate, we utilized a novel cerebral Open Flow Microperfusion (cOFM) method to examine leptin BBB transport in male C57BL/6J mice, fed a chow diet or high fat diet (HFD) for 20 days...
April 27, 2018: Molecular Metabolism
https://www.readbyqxmd.com/read/29744298/the-involvement-of-4-1bb-4-1bbl-signaling-in-glial-cell-mediated-hypothalamic-inflammation-in-obesity
#9
Jiye Kim, Yoon-Hee Kwon, Chu-Sook Kim, Thai H Tu, Byung-Sam Kim, Yeonsoo Joe, Hun T Chung, Tsuyoshi Goto, Teruo Kawada, Taesun Park, Myung-Sook Choi, Min-Seon Kim, Rina Yu
Obesity-induced inflammation occurs not only in peripheral tissues but also in areas of the central nervous system. Glial cells such as astrocytes and microglia play crucial roles in obesity-related hypothalamic inflammation, leading to the derangement of energy metabolism and neurodegenerative pathologies. Here, we show that the interaction of 4-1BB/4-1BBL between lipid-laden astrocytes/microglia promotes hypothalamic inflammation in obesity. Stimulation of 4-1BB, a member of the TNF receptor superfamily, and/or its ligand 4-1BBL on astrocytes and/or microglia with a specific agonist resulted in activation of the inflammatory signaling pathway and enhanced production of inflammatory mediators...
May 2018: FEBS Open Bio
https://www.readbyqxmd.com/read/29743077/role-of-hormonal-and-inflammatory-alterations-in-obesity-related-reproductive-dysfunction-at-the-level-of-the-hypothalamic-pituitary-ovarian-axis
#10
REVIEW
Michelle Goldsammler, Zaher Merhi, Erkan Buyuk
BACKGROUND: Besides being a risk factor for multiple metabolic disorders, obesity could affect female reproduction. While increased adiposity is associated with hormonal changes that could disrupt the function of the hypothalamus and the pituitary, compelling data suggest that obesity-related hormonal and inflammatory changes could directly impact ovarian function. OBJECTIVE: To review the available data related to the mechanisms by which obesity, and its associated hormonal and inflammatory changes, could affect the female reproductive function with a focus on the hypothalamic-pituitary-ovarian (HPO) axis...
May 9, 2018: Reproductive Biology and Endocrinology: RB&E
https://www.readbyqxmd.com/read/29742238/propentofylline-decreases-hypothalamic-astrogliosis-induced-by-hypercaloric-diet-in-the-rat
#11
Eduardo Fernandes Bondan, Carolina Cardoso Vieira, Maria de Fátima Monteiro Martins, Thiago Berti Kirsten, Maria Martha Bernardi
Obesity is associated with a chronic and low-grade inflammatory response in the hypothalamus, where astrogliosis occurs with the upregulation of the astrocyte structural protein GFAP. As propentofylline (PPF) has inhibitory effects on astrocyte and microglial activation during inflammation, this study aimed to investigate if this xanthine derivative could decrease the astrocyte reaction induced by a hypercaloric diet (HD). Male Wistar rats were divided into four groups: NDS - rats receiving a normocaloric diet (ND) and daily saline solution; NDP - rats receiving ND and daily PPF (12...
April 2018: Arquivos de Neuro-psiquiatria
https://www.readbyqxmd.com/read/29738801/-p-clphse-2-stabilizes-metabolic-function-in-a-rat-model-of-neuroendocrine-obesity-induced-by-monosodium-glutamate
#12
Caroline B Quines, Suzan G Rosa, Daniela Velasquez, Vinicius C Prado, José S S Neto, Cristina W Nogueira
Obesity is a chronic and complex medical condition characterized by excessive fat accumulation and its complications include metabolic syndrome, diabetes and chronic inflammation. The aim of this study was to expand the knowledge about p-chloro-diphenyl diselenide (p-ClPhSe)2 effects on enzymes and proteins involved in the metabolism of lipids and carbohydrates in a model of neuroendocrine obesity induced by MSG. Male Wistar rats were treated during the first ten postnatal days with MSG (4 g/kg, s.c.) and received (p-ClPhSe)2 (10 mg/kg, i...
May 5, 2018: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/29738112/high-fat-diet-dysregulates-hypothalamic-pituitary-axis-gene-expression-levels-which-are-differentially-rescued-by-epa-and-dha-ethyl-esters
#13
Saame Raza Shaikh, Patti R Shaver, Brian M Shewchuk
SCOPE: Dietary fat composition can modulate gene expression in peripheral tissues in obesity. Observations of the dysregulation of growth hormone (GH) in obesity indicate that these effects extend to the hypothalamic-pituitary (H-P) axis. We thus determined whether specific high fat (HF) diets influenced the levels of Gh and other key gene transcripts in the H-P axis. METHODS AND RESULTS: C57BL/6 mice were fed a lean control diet or a HF diet in the absence or presence of OA, EPA or DHA ethyl esters...
May 8, 2018: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/29732438/acute-sleep-disruption-and-high-fat-diet-induced-hypothalamic-inflammation-are-not-related-to-glucose-tolerance-in-mice
#14
Jacqueline M Ho, Nicole H Ducich, Nhat-Quynh K Nguyen, Mark R Opp
Chronic insufficient sleep is a major societal problem and is associated with increased risk of metabolic disease. Hypothalamic inflammation contributes to hyperphagia and weight gain in diet-induced obesity, but insufficient sleep-induced neuroinflammation has yet to be examined in relation to metabolic function. We therefore fragmented sleep of adult male C57BL/6J mice for 18 h daily for 9 days to determine whether sleep disruption elicits inflammatory responses in brain regions that regulate energy balance and whether this relates to glycemic control...
January 2018: Neurobiology of Sleep and Circadian Rhythms
https://www.readbyqxmd.com/read/29728260/anesthesia-in-a-pediatric-patient-with-rohadd-syndrome
#15
E Esparza Isasa, M A Palomero Rodríguez, I Acebedo Bambaren, C Medrano Viñas, D Gil Mayo, F Domínguez Pérez, D Pestaña Lagunas
Rapid-onset obesity with hypothalamic dysfunction, hypoventilation, and autonomic dysregulation (ROHHAD) syndrome is a rare entity that is characterised by its onset in healthy children at 2-4 years of age. It is a complex syndrome that includes, among other symptoms, rapid weight gain with hyperphagia, hypothalamic dysfunction, central hypoventilation, and autonomic dysregulation. The case is presented of a 10-year-old boy with a diagnosis of ROHHAD syndrome undergoing insertion of a port-a-cath under general anaesthesia, who developed complications during the anaesthetic procedure related to his illness...
May 1, 2018: Revista Española de Anestesiología y Reanimación
https://www.readbyqxmd.com/read/29727675/patient-derived-ipsc-hypothamic-neurons-the-ultimate-protocol
#16
Maria Consolata Miletta, Tamas L Horvath
Several methods for making hypothalamic-like neurons (iHTNs) from human or mouse induced pluripotent stem cells (iPSCs) with varying efficiencies exist. In this issue of Cell Stem Cell, Rajamani et al. (2018) devise a new, efficient method to differentiate iPSCs from super-obese and normal donors into iHTNS and investigate their different molecular profiles and hormone responses.
May 3, 2018: Cell Stem Cell
https://www.readbyqxmd.com/read/29726959/melanocortin-4-receptor-pathway-dysfunction-in-obesity-patient-stratification-aimed-at-mc4r-agonist-treatment
#17
Kristin L Ayers, Benjamin S Glicksberg, Alastair S Garfield, Simonne Longerich, Joseph A White, Pengwei Yang, Lei Du, Thomas W Chittenden, Jeffery R Gulcher, Sophie Roy, Fred Fiedorek, Keith Gottesdiener, Sarah Cohen, Kari E North, Eric E Schadt, Shuyu D Li, Rong Chen, Lex H T Van der Ploeg
Context: The hypothalamic melanocortin 4 receptor (MC4R)-pathway serves a critical role in regulating bodyweight. Loss of function (LoF) mutations in the MC4R pathway including mutations in the POMC (1), PCSK1, LEPR (2) or the MC4R genes (3) have been shown to be causative of early-onset severe obesity. Methods: Through a comprehensive epidemiological analysis of known and predicted LoF variants in the POMC, PCSK1 and LEPR genes, we sought to estimate the number of US individuals with bi-allelic MC4R pathway LoF variants...
May 2, 2018: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29724789/ligand-specific-signaling-profiles-and-resensitization-mechanisms-of-the-neuromedin-u2-receptor
#18
Khaled Alhosaini, Omar Bahattab, Heider Qassam, John Challiss, Gary B Willars
The structurally related, but distinct neuropeptides, neuromedin U (NmU) and neuromedin S (NmS) are ligands of two G protein-coupled NmU receptors (NMU1, NMU2). Hypothalamic NMU2 regulates feeding behavior and energy expenditure and has therapeutic potential as an anti-obesity target, making an understanding of its signaling and regulation of particular interest. NMU2 binds both NmU and NmS with high affinity, resulting in receptor-ligand co-internalization. We have investigated whether receptor trafficking events post-internalization are 'biased' by the ligand bound and can therefore influence signaling function...
May 3, 2018: Molecular Pharmacology
https://www.readbyqxmd.com/read/29717927/food-intake-and-eating-behavior-after-bariatric-surgery
#19
Werd Al-Najim, Neil G Docherty, Carel W le Roux
Obesity is an escalating global chronic disease. Bariatric surgery is a very efficacious treatment for obesity and its comorbidities. Alterations to gastrointestinal anatomy during bariatric surgery result in neurological and physiological changes affecting hypothalamic signaling, gut hormones, bile acids, and gut microbiota, which coalesce to exert a profound influence on eating behavior. A thorough understanding of the mechanisms underlying eating behavior is essential in the management of patients after bariatric surgery...
July 1, 2018: Physiological Reviews
https://www.readbyqxmd.com/read/29716734/the-difficulties-of-pseudo-cushing-s-syndrome-or-non-neoplastic-hypercortisolism
#20
Olivier Chabre
Pseudo-Cushing's syndrome covers different pathological conditions responsible for mild-to-moderate ACTH-dependent hypercortisolism, related not to an ACTH-secreting tumor but rather to CRH and/or AVP hypothalamic secretion through activation of various neural pathways, in patients generally displaying excess central adiposity. It is better termed "non-neoplastic hypercortisolism" (NNH). The main conditions implicated in NNH comprise: neuropsychiatric disorder, alcohol abuse, insulin-resistant obesity, polycystic ovary syndrome, and end-stage kidney disease...
April 28, 2018: Annales D'endocrinologie
keyword
keyword
80340
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"