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Body homeostasis

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https://www.readbyqxmd.com/read/29346793/epicardial-fat-thickness-in-non-obese-neurologically-impaired-children-association-with-unfavorable-cardiometabolic-risk-profile
#1
Valeria Calcaterra, Hellas Cena, Pietro Mariano Casali, Gianluca Iacobellis, Riccardo Albertini, Mara De Amici, Annalisa de Silvestri, Calogero Comparato, Gloria Pelizzo
BACKGROUND: Cardiovascular risk is reported in disabled children and epicardial fat (EF) is considered an independent predictor of cardiovascular disease (CVD). No data on the EF thickness (EFT) evaluation in disabled children have been published. OBJECTIVE: We investigated EFT in neurologically impaired (NI) children; its relationship with their metabolic profile was also considered. METHODS: Clinical data, body composition estimation, biochemical profile, and ultrasound-measured EFT were performed in 32 disabled patients (12...
January 18, 2018: Annals of Nutrition & Metabolism
https://www.readbyqxmd.com/read/29346712/synergetic-effects-of-prenatal-and-postnatal-high-sucrose-intake-on-glucose-tolerance-and-hepatic-insulin-resistance-in-rat-offspring
#2
Pengjie Zhang, Di Zhu, Yueming Zhang, Lingjun Li, Xionghui Chen, Wenna Zhang, Ruixiu Shi, Jianying Tao, Bing Han, Zhice Xu
SCOPE: High sucrose intake during pregnancy is linked to type 2 diabetes mellitus and altered insulin resistance. METHODS AND RESULTS: This study attempted to ascertain whether prenatal high sucrose intake (20% sucrose) alleviates the detrimental effects of high postnatal sugar consumption in the offspring, and the molecular mechanisms were investigated using a rat model. High prenatal sucrose exposure increased the body weight of the offspring at 1 to 3 weeks of age...
January 18, 2018: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/29346609/decreased-serum-levels-of-ghrelin-and-brain-derived-neurotrophic-factor-in-premenopausal-women-with-metabolic-syndrome
#3
Masoumeh Jabbari, Sorayya Kheirouri, Mohammad Alizadeh
Objective: We aimed to investigate the association between serum levels of ghrelin and brain-derived neurotrophic factor (BDNF) with MetS and its components in premenopausal women. Methods: 43 patients with MetS and 43 healthy controls participated in this study. Participants' body mass index (BMI), waist circumference (WC), systolic and diastolic blood pressure (SBP and DBP) were measured. Serum levels of total cholesterol (TC), triglyceride (TG), low and high density lipoprotein cholesterol (LDL-C and HDL-C), fasting blood sugar (FBS), insulin, BDNF and ghrelin determined...
January 12, 2018: Laboratory Medicine
https://www.readbyqxmd.com/read/29344818/dietary-chromium-picolinate-supplementation-affects-growth-whole-body-composition-and-gene-expression-related-to-glucose-metabolism-and-lipogenesis-in-juvenile-blunt-snout-bream-megalobrama-amblycephala
#4
Mingchun Ren, Ahmed Mokrani, Hualiang Liang, Ke Ji, Jun Xie, Xianping Ge, Bo Liu
An 11-week feeding trial was carried out to investigate the effects of supplemented chromium picolinate (Cr-Pic) on the growth, whole-body composition, and relative mRNA expression related to lipogenesis and glucose metabolism in juvenile blunt snout bream. Seven isonitrogenous and isoenergetic diets with graded Cr supplementation levels were fed to triplicate groups. The final weight (FW), feed conversion ratio (FCR), and specific growth rate (SGR) were improved with increasing dietary Cr supplementation levels up to 0...
January 18, 2018: Biological Trace Element Research
https://www.readbyqxmd.com/read/29344645/targeted-disruption-of-adenosine-kinase-in-myeloid-monocyte-cells-increases-osteoclastogenesis-and-bone-resorption-in-mice
#5
Qiuying Ye, Ge Li, Shuhua Liu, Yalun Guan, Yunfeng Li, Jinling Li, Huanhuan Jia, Xuejiao Li, Qingnan Li, Ren Huang, Hui Wang, Yu Zhang
Adenosine kinase (ADK) serves an important role in intracellular adenosine clearance via phosphorylating adenosine to AMP. The role of adenosine and its receptors in the maintenance of bone homeostasis is well studied, particularly in osteoclastogenesis and bone resorption; however, the function of ADK in bone metabolism is still unclear. In the present study, utilizing the cre/floxp recombination system, mice with conditional loss of ADK function in myeloid monocyte cells were used to assess the effect of ADK deficiency on bone metabolism...
January 17, 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29344508/acid-base-and-electrolyte-disorders-in-patients-with-and-without-chronic-kidney-disease-an-update
#6
REVIEW
Tsering Dhondup, Qi Qian
Kidneys play a pivotal role in the maintenance and regulation of acid-base and electrolyte homeostasis, which is the prerequisite for numerous metabolic processes and organ functions in the human body. Chronic kidney diseases compromise the regulatory functions, resulting in alterations in electrolyte and acid-base balance that can be life-threatening. In this review, we discuss the renal regulations of electrolyte and acid-base balance and several common disorders including metabolic acidosis, alkalosis, dysnatremia, dyskalemia, and dysmagnesemia...
December 2017: Kidney Diseases
https://www.readbyqxmd.com/read/29344085/synthesis-secretion-function-metabolism-and-application-of-natriuretic-peptides-in-heart-failure
#7
REVIEW
Shihui Fu, Ping Ping, Fengqi Wang, Leiming Luo
As a family of hormones with pleiotropic effects, natriuretic peptide (NP) system includes atrial NP (ANP), B-type NP (BNP), C-type NP (CNP), dendroaspis NP and urodilatin, with NP receptor-A (guanylate cyclase-A), NP receptor-B (guanylate cyclase-B) and NP receptor-C (clearance receptor). These peptides are genetically distinct, but structurally and functionally related for regulating circulatory homeostasis in vertebrates. In humans, ANP and BNP are encoded by NP precursor A (NPPA) and NPPB genes on chromosome 1, whereas CNP is encoded by NPPC on chromosome 2...
2018: Journal of Biological Engineering
https://www.readbyqxmd.com/read/29344030/optimal-cutoff-points-for-anthropometric-variables-to-predict-insulin-resistance-in-polycystic-ovary-syndrome
#8
Hossein Hatami, Seyed Ali Montazeri, Nazanin Hashemi, Fahimeh Ramezani Tehrani
Background: Insulin resistance (IR) is a major cardiometabolic risk factor in females with polycystic ovary syndrome (PCOS). The euglycemic clamp is the gold standard method to measure IR. However, considering the time and cost that it takes, surrogate markers of IR are now widely used. The current study aimed at evaluating the cutoff points of even less invasive anthropometric and body composition variables to predict IR in females with PCOS. Methods: The current cross sectional study selected 224 females with PCOS, using Rotterdam criteria, referred to reproductive endocrinology research center; 88 of which were diagnosed with insulin resistance...
October 2017: International Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29343609/polymorphic-human-sulfotransferase-2a1-mediates-the-formation-of-25-hydroxyvitamin-d3-3-o-sulfate-a-major-circulating-vitamin-d-metabolite-in-humans
#9
Timothy Wong, Zhican Wang, Brian D Chapron, Mizuki Suzuki, Katrina G Claw, Chunying Gao, Robert S Foti, Bhagwat Prasad, Alenka Chapron, Justina Calamia, Amarjit Chaudhry, Erin G Schuetz, Ronald L Horst, Qingcheng Mao, Ian H de Boer, Timothy A Thornton, Kenneth E Thummel
Metabolism of 25-hydroxyvitamin D3 (25OHD3) plays a central role in regulating the biological effects of vitamin D in the body. Although cytochrome P450-dependent hydroxylation of 25OHD3 has been extensively investigated, limited information is available on the conjugation of 25OHD3. In the present study, we report that 25OHD3 is selectively conjugated to 25OHD3-3-O-sulfate by human sulfotransferase 2A1 (SULT2A1) and that the liver is a primary site of metabolite formation. At a low (50 nM) concentration of 25OHD3, 25OHD3-3-O-sulfate was the most abundant metabolite, with an intrinsic clearance approximately 8-fold higher than the next most efficient metabolic route...
January 17, 2018: Drug Metabolism and Disposition: the Biological Fate of Chemicals
https://www.readbyqxmd.com/read/29342166/effects-of-vitamin-d-on-insulin-resistance-and-myosteatosis-in-diet-induced-obese-mice
#10
Elisa Benetti, Raffaella Mastrocola, Fausto Chiazza, Debora Nigro, Giuseppe D'Antona, Valentina Bordano, Roberto Fantozzi, Manuela Aragno, Massimo Collino, Marco Alessandro Minetto
Epidemiological studies pointed out to a strong association between vitamin D deficiency and type 2 diabetes prevalence. However, the role of vitamin D supplementation in the skeletal muscle, a tissue that play a crucial role in the maintenance of glucose homeostasis, has been scarcely investigated so far. On this basis, this study aimed to evaluate the effect of vitamin D supplementation in a murine model of diet-induced insulin resistance with particular attention to the effects evoked on the skeletal muscle...
2018: PloS One
https://www.readbyqxmd.com/read/29342010/the-ever-expanding-saga-of-the-proprotein-convertases-and-their-roles-in-body-homeostasis-emphasis-on-novel-proprotein-convertase-subtilisin-kexin-number-9-functions-and-regulation
#11
Nabil G Seidah, Michel Chrétien, Majambu Mbikay
PURPOSE OF REVIEW: The nine members of the proprotein convertase family play major physiological roles during development and in the adult, and their dysregulation leads to various diseases. The primary objective of this article is to review recent findings on the clinical importance of some of these convertases concentrating mostly on PCSK9, the ninth member of the convertase family. This includes the transcriptional and translational regulation of PCSK9, its ability to enhance the degradation of LDL receptor (LDLR), and the implication of PCSK9 in inflammation and sepsis...
January 15, 2018: Current Opinion in Lipidology
https://www.readbyqxmd.com/read/29341046/reduced-growth-hormone-secretion-is-associated-with-nonalcoholic-fatty-liver-disease-in-obese-children
#12
Shuang Liang, Zhen Yu, Xiaobo Song, Yu Wang, Meng Li, Jiang Xue
The purpose of the study was to evaluate the relationship between arginine-levodopa-induced growth hormone (GH) secretion and nonalcoholic fatty liver disease (NAFLD) in obese children. This study includes a total of 84 obese and 43 normal weight children. The obese subjects are divided into two groups based on the presence or absence of NAFLD. Clinical examination, anthropometric and laboratory examinations, and liver ultrasonography are assessed for all participants. The obese group had significantly lower peak stimulated GH (p<0...
January 16, 2018: Hormone and Metabolic Research, Hormon- und Stoffwechselforschung, Hormones et Métabolisme
https://www.readbyqxmd.com/read/29337984/anteroposterior-axis-patterning-by-early-canonical-wnt-signaling-during-hemichordate-development
#13
Sébastien Darras, Jens H Fritzenwanker, Kevin R Uhlinger, Ellyn Farrelly, Ariel M Pani, Imogen A Hurley, Rachael P Norris, Michelle Osovitz, Mark Terasaki, Mike Wu, Jochanan Aronowicz, Marc Kirschner, John C Gerhart, Christopher J Lowe
The Wnt family of secreted proteins has been proposed to play a conserved role in early specification of the bilaterian anteroposterior (A/P) axis. This hypothesis is based predominantly on data from vertebrate embryogenesis as well as planarian regeneration and homeostasis, indicating that canonical Wnt (cWnt) signaling endows cells with positional information along the A/P axis. Outside of these phyla, there is strong support for a conserved role of cWnt signaling in the repression of anterior fates, but little comparative support for a conserved role in promotion of posterior fates...
January 16, 2018: PLoS Biology
https://www.readbyqxmd.com/read/29337301/hepatic-gi-signaling-regulates-whole-body-glucose-homeostasis
#14
Mario Rossi, Lu Zhu, Sara M McMillin, Sai Prasad Pydi, Shanu Jain, Lei Wang, Yinghong Cui, Regina J Lee, Amanda H Cohen, Hideaki Kaneto, Morris J Birnbaum, Yanling Ma, Yaron Rotman, Jie Liu, Travis J Cyphert, Toren Finkel, Owen P McGuinness, Jürgen Wess
An increase in hepatic glucose production (HGP) is a key feature of type 2 diabetes. Excessive signaling through hepatic Gs-linked glucagon receptors critically contributes to pathologically elevated HGP. Here, we tested the hypothesis that this metabolic impairment can be counteracted by enhancing hepatic Gi signaling. Specifically, we used a chemogenetic approach to selectively activate Gi-type G proteins in mouse hepatocytes in vivo. Unexpectedly, activation of hepatic Gi signaling triggered a pronounced increase in HGP and severely impaired glucose homeostasis...
January 16, 2018: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/29336842/immunohistochemical-localization-of-angiotensin-at1-receptors-in-the-rat-carotid-body
#15
Dimitrinka Y Atanasova, Angel D Dandov, Nikolay D Dimitrov, Nikolai E Lazarov
The carotid body (CB) is a major peripheral arterial chemoreceptor that initiates respiratory and cardiovascular adjustments to maintain homeostasis. Recent evidence suggests that circulating or locally produced hormones like angiotensin II acting via AT1 receptors modulate its activity in a paracrine-autocrine manner. The aim of this study was to examine the immunohistochemical localization of AT1 receptor in the CB of adult rats and to compare its expression in vehicle-treated animals, and after the long-term application of its selective blocker losartan...
January 12, 2018: Acta Histochemica
https://www.readbyqxmd.com/read/29336631/the-beneficial-radioprotective-effect-of-tomato-seed-oil-against-gamma-radiation-induced-damage-in-male-rats
#16
Magda K Ezz, Nashwa K Ibrahim, Mahmoud M Said, Mostafa A Farrag
Radiation protection research receives intense focus due to its significant impact on human health. The present study was undertaken to investigate the protective effect of pretreatment with tomato seed oil (TSO) against gamma radiation-induced damage in rats. Male Wistar rats were divided into four groups: (1) untreated control; (2) TSO-supplemented; (3) gamma-irradiated; (4) TSO-pretreated and gamma-irradiated. Acute exposure of animals to a single gamma radiation dose (6 Gy) induced oxidative stress in major body organs, altered serum lipid homeostasis, significantly increased serum testosterone and sorbitol dehydrogenase levels, and elicited a systemic inflammation as manifested by the induction of serum vascular cell adhesion molecule-1...
January 16, 2018: Journal of Dietary Supplements
https://www.readbyqxmd.com/read/29335916/association-between-obstructive-sleep-apnea-and-non-alcoholic-fatty-liver-disease-a-systematic-review-and-meta-analysis
#17
REVIEW
Shanshan Jin, Suwen Jiang, Airong Hu
The relationship between obstructive sleep apnea (OSA) and non-alcoholic fatty liver disease (NAFLD) has been an issue of great concern. The primary purpose of this study was to determine the influence of OSA on the levels of liver enzymes including alanine transaminase (ALT) and aspartate transaminase (AST). The secondary purpose was to estimate the effect of OSA on the histological lesions of NAFLD, such as steatosis, lobular inflammation, ballooning degeneration, fibrosis, as well as NAFLD activity score (NAS)...
January 15, 2018: Sleep & Breathing, Schlaf & Atmung
https://www.readbyqxmd.com/read/29334345/arm-crank-ergometry-improves-cardiovascular-disease-risk-factors-and-community-mobility-independent-of-body-composition-in-high-motor-complete-spinal-cord-injury
#18
James J Bresnahan, Gary J Farkas, Jody L Clasey, James W Yates, David R Gater
OBJECTIVE: Evaluate the effect of aerobic exercise using arm crank ergometry (ACE) in high motor complete (ISNCSCI A/B) spinal cord injury (SCI) as primarily related to cardiovascular disease (CVD) risk factors and functional mobility and secondarily to body composition and metabolic profiles. DESIGN: Longitudinal interventional study at an academic medical center. METHODS: Ten previously untrained participants (M8/F2, Age 36.7 y ± 10.1, BMI 24...
January 15, 2018: Journal of Spinal Cord Medicine
https://www.readbyqxmd.com/read/29333380/anti-obesity-property-of-lichen-thamnolia-vermicularis-extract-in-3t3-l1-cells-and-diet-induced-obese-mice
#19
Ra-Yeong Choi, Ju Ri Ham, Jiyoung Yeo, Jae-Seoun Hur, Seok-Kyu Park, Myung-Joo Kim, Mi-Kyung Lee
Thamnolia vermicularis (TV) is an edible lichen that is prevalent in the alpine zone of East Asia. This study evaluated the feasibility of using TV acetone extracts as a functional food based on experiments using cell line and obese mice. The cellular triglyceride levels and Oil red O staining of 3T3-L1 cells indicated that TV extracts (5 and 10 μg/mL) dose-dependently suppressed adipocyte differentiation and lipid accumulation compared with the control. The TV extract (0.4%, w/w) in a high-fat diet (HFD) was supplemented to C57BL/6N mice for 12 weeks, and TV extract supplement significantly reduced visceral fat mass and body weight compared with HFD feeding alone...
December 2017: Preventive Nutrition and Food Science
https://www.readbyqxmd.com/read/29331497/dietary-antioxidant-micronutrients-alter-mucosal-inflammatory-risk-in-a-murine-model-of-genetic-and-microbial-susceptibility
#20
Joseph F Pierre, Reinhard Hinterleitner, Romain Bouziat, Nathan A Hubert, Vanessa Leone, Jun Miyoshi, Bana Jabri, Eugene B Chang
Inflammatory bowel diseases (IBD) are caused by the convergence of microbial, environmental, and genetic factors. Diet significantly alters these interactions by affecting both the host and microbiome. Using a mucosal inflammatory model that resembles the human condition of ileal pouchitis, we investigated the effects of Control (CONT) or Antioxidant (AOX) diet, containing pharmacologically relevant levels of 4 micronutrients, on disease risk in wild-type and IL-10-/- animals following surgical self-filling (SF) ileal blind loop placement...
December 10, 2017: Journal of Nutritional Biochemistry
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