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leptin, obesity, children

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https://www.readbyqxmd.com/read/28453643/early-onset-obesity-unrecognized-first-evidence-for-gnas-mutations-and-methylation-changes
#1
Annette Grüters-Kieslich, Monica Reyes, Amita Sharma, Cem Demirci, Terry J DeClue, Erwin Lankes, Dov Tiosano, Dirk Schnabel, Harald Jüppner
Context: Early-onset obesity, characteristic for disorders affecting the leptin-melanocortin pathway, is also observed in pseudohypoparathyroidism type Ia (PHP1A), a disorder caused by maternal GNAS mutations that disrupt expression or function of the stimulatory G protein (Gsα). Mutations and/or epigenetic abnormalities at the same genetic locus are also the cause of pseudohypoparathyroidism type Ib (PHP1B). However, although equivalent biochemical and radiographic findings can be encountered in these related disorders caused by GNAS abnormalities they are considered distinct clinical entities...
April 27, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28329079/sleep-duration-and-cardiometabolic-risk-among-chinese-school-aged-children-do-adipokines-play-a-mediating-role
#2
Lujiao Li, Junling Fu, Xin Ting Yu, Ge Li, Lu Xu, Jinghua Yin, Hong Cheng, Dongqing Hou, Xiaoyuan Zhao, Shan Gao, Wenhui Li, Changhong Li, Struan F A Grant, Mingyao Li, Yi Xiao, Jie Mi, Ming Li
Objective: To assess the associations between sleep duration and cardiometabolic risk factors in Chinese school-aged children and to explore the possible mediating role of adipokines. Methods: Sleep duration was collected in 3,166 children from the Beijing Child and Adolescent Metabolic Syndrome study. Glucose homeostasis and other cardiometabolic risk factors were assessed. Serum adipokines including leptin, total and high-molecular-weight (HMW) adiponectin, resistin, fibroblast growth factor 21 (FGF21) and retinol binding protein 4 (RBP4) were determined...
March 9, 2017: Sleep
https://www.readbyqxmd.com/read/28286536/associations-among-osteocalcin-leptin-and-metabolic-health-in-children-ages-9-13-years-in-the-united-states
#3
Kelly Virecoulon Giudici, Joseph M Kindler, Berdine R Martin, Emma M Laing, George P McCabe, Linda D McCabe, Dorothy B Hausman, Lígia Araújo Martini, Richard D Lewis, Connie M Weaver, Munro Peacock, Kathleen M Hill Gallant
BACKGROUND: This study aimed to investigate the relationships among osteocalcin, leptin and metabolic health outcomes in children ages 9-13 years. METHODS: This was a cross-sectional analysis of baseline data from 161 boys and 157 girls (ages 9-13 years) who previously participated in a double-blinded randomized placebo controlled trial of vitamin D supplementation. Relationships among fasting serum total osteocalcin (tOC), undercarboxylated osteocalcin (ucOC), leptin, and metabolic health outcomes were analyzed...
2017: Nutrition & Metabolism
https://www.readbyqxmd.com/read/28278160/hyperleptinemia-in-children-with-autosomal-recessive-spinal-muscular-atrophy-type-i-iii
#4
Heike Kölbel, Berthold P Hauffa, Stefan A Wudy, Anastasios Bouikidis, Adela Della Marina, Ulrike Schara
BACKGROUND: Autosomal-recessive proximal spinal muscular atrophies (SMA) are disorders characterized by a ubiquitous deficiency of the survival of motor neuron protein that leads to a multisystemic disorder, which mostly affects alpha motor neurons. Disease progression is clinically associated with failure to thrive or weight loss, mainly caused by chewing and swallowing difficulties. Although pancreatic involvement has been described in animal models, systematic endocrinological evaluation of the energy metabolism in humans is lacking...
2017: PloS One
https://www.readbyqxmd.com/read/28274232/perilipin-polymorphisms-are-risk-factors-for-the-development-of-obesity-in-adolescents-a-case-control-study
#5
Yavuz Tokgöz, Ishak Abdurrahman Işık, Soheil Akbari, Tuncay Kume, Oya Sayın, Esra Erdal, Nur Arslan
BACKGROUND: The variations in perilipin gene (PLIN) were previously associated with obesity. We examined the association of polymorphisms at the PLIN locus in adolescents with obesity and their connection with serum adipokines. METHODS: A total of 308 children (206 obese, 66.8% and 102 healthy control, 33.2%) between the ages of 10-18 years were included into the study. PLIN gene analysis [PLIN 1, PLIN 4, PLIN 6, PLIN 5'UTR-1234 C > G and PLIN 10171 A/T] were studied by Real Time-PCR...
March 9, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/28270183/the-link-between-obesity-and-migraine-in-childhood-a-systematic-review
#6
REVIEW
G Farello, P Ferrara, A Antenucci, C Basti, A Verrotti
Obesity and headache are two highly prevalent diseases both in adults and children and they are associated with a strong personal and social impact. Many studies suggest that obesity is comorbid with headache in general, and migraine in particular and obesity seems to be a risk factor for migraine progression and for migraine frequency both in adults and in children. Research shows that there are multiple areas of overlap between migraine pathophysiology and the central and peripheral pathways regulating feeding: inflammatory mediators such as the calcitonin gene-related protein (CGRP), neurotransmitters such as serotonin, peptides such as orexin and adipocytokines such as adiponectin (ADP) and leptin could explain the common pathogenesis...
March 7, 2017: Italian Journal of Pediatrics
https://www.readbyqxmd.com/read/28255980/thyroid-dysfunction-in-obese-and-overweight-children
#7
Ewelina Witkowska-Sędek, Anna Kucharska, Małgorzata Rumińska, Beata Pyrżak
Obesity and thyroid function are closely related. Thyroid hormones are involved in the regulation of metabolism, thermogenesis, food intake, and fat oxidation. In obese children the most frequent hormonal abnormalities are slight hyperthyrotropinaemia and moderate increases in total T3 and/or fT3 concentrations. Those abnormalities are usually considered a cause of obesity, but according to recent studies, they should actually be considered an adaptation process aimed at increasing resting energy expenditure and total energy expenditure...
2017: Endokrynologia Polska
https://www.readbyqxmd.com/read/28239164/adipocyte-c1qtnf5-expression-is-bmi-dependently-related-to-early-adipose-tissue-dysfunction-and-systemic-ctrp5-serum-levels-in-obese-children
#8
J T Schwartze, K Landgraf, U Spielau, D Rockstroh, D Löffler, J Kratzsch, W Kiess, A Körner
BACKGROUND/OBJECTIVES: The recently identified adipocytokine C1QTNF5 (encodes for CTRP5) has been demonstrated to inhibit pro-metabolic insulin signaling in adipocytes. We hypothesized that adipocyte C1QTNF5 expression in subcutaneous (sc) adipose tissue (AT) would correlate with the degree of obesity, systemic CTRP5 serum levels, and early AT and metabolic dysfunction in children. SUBJECTS/METHODS: Sc AT samples were obtained from 33 healthy Caucasian lean children aged 10...
February 27, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28226031/evaluation-of-clinical-and-laboratory-markers-of-cardiometabolic-risk-in-overweight-and-obese-children-and-adolescents
#9
Heloísa Marcelina da Cunha Palhares, Adriana Paula da Silva, Daniela Cristina Silva Resende, Gilberto de Araújo Pereira, Virmondes Rodrigues, Maria de Fátima Borges
OBJECTIVE: This study analyzed the frequency of cardiometabolic risk markers and metabolic syndrome occurrence in overweight and obese children and adolescents. METHODS: The participants included 161 overweight (n=65) and obese (n=96) individuals aged between 5 and 19 years. Clinical markers were assessed (body mass index, body fat percentage, waist circumference, acanthosis, systolic and diastolic blood pressures, laboratory parameters [glucose, insulin, cholesterol (total and fractions) and triglyceride levels and homeostasis model assessment of insulin resistance (HOMA-IR) index] and leptin and adiponectin levels)...
January 1, 2017: Clinics
https://www.readbyqxmd.com/read/28215263/sleep-disordered-breathing-systemic-adipokine-secretion-and-metabolic-dysregulation-in-overweight-and-obese-children-and-adolescents
#10
Annelies Van Eyck, Kim Van Hoorenbeeck, Benedicte Y De Winter, Luc Van Gaal, Wilfried De Backer, Stijn L Verhulst
OBJECTIVE: Obstructive sleep apnea (OSA) is common among overweight and obese children, and it is an independent risk factor for developing metabolic syndrome. However, the mechanisms linking OSA and metabolic syndrome are still unclear, but a role for adipose tissue dysfunction caused by intermittent hypoxia has been suggested. Therefore, the goal of this study was to investigate the relationship between OSA and systemic adipokine concentrations in overweight and obese children. METHODS: We included 164 overweight and obese children in a tertiary center and distributed them in groups based on their obstructive apnea-hypopnea index (111 controls, 28 mild OSA, 25 moderate-to-severe OSA)...
February 2017: Sleep Medicine
https://www.readbyqxmd.com/read/28193268/adipokines-insulin-resistance-and-adiposity-as-a-predictors-of-metabolic-syndrome-in-child-survivors-of-lymphoma-and-acute-lymphoblastic-leukemia-of-a-developing-country
#11
Lourdes Barbosa-Cortés, Mardia López-Alarcón, Juan Manuel Mejía-Aranguré, Miguel Klünder-Klünder, María Del Carmen Rodríguez-Zepeda, Hugo Rivera-Márquez, Alan de la Vega-Martínez, Jorge Martin-Trejo, Juan Shum-Luis, Karina Solis-Labastida, Enrique López-Aguilar, Guadalupe Matute-González, Roberto Bernaldez-Rios
BACKGROUND: There is a growing body of evidence indicating that pediatric survivors of cancer are at a greater risk of developing metabolic syndrome. This study evaluated some probable predictors of metabolic syndrome (MS), such as leptin and adiponectin concentrations, the leptin/adiponectin ratio, insulin resistance, and adiposity, in a sample of child survivors of lymphoma and leukemia in Mexico City. METHODS: Fifty two children (leukemia n = 26, lymphoma n = 26), who were within the first 5 years after cessation of therapy, were considered as eligible to participate in the study...
February 13, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28183093/putative-effects-of-obesity-on-linear-growth-and-puberty%C3%A2
#12
Shlomit Shalitin, Wieland Kiess
Childhood obesity is a major public health problem that has grown to epidemic proportions throughout the world. Obesity is influenced by genetic and environmental factors. The nutritional status plays an important role in growth and body weight regulation. Excess adiposity during childhood can affect the process of growth and puberty. Obese children are frequently tall for their age, with accelerated epiphyseal growth plate maturation despite low growth hormone levels. Several regulatory hormones may affect the process of linear growth in the constellation of obesity, as high levels of insulin and leptin are observed in obese children...
February 9, 2017: Hormone Research in Pædiatrics
https://www.readbyqxmd.com/read/28139438/fgf21-deficiency-is-associated-with-childhood-obesity-insulin-resistance-and-hypoadiponectinaemia-the-bcams-study
#13
G Li, J Yin, J Fu, L Li, S F A Grant, C Li, M Li, J Mi, M Li, S Gao
OBJECTIVE: Fibroblast growth factor 21 (FGF21) exerts beneficial effects on metabolic homoeostasis and has been reported to be regulated by adiponectin, leptin and resistin. However, while an association between increased circulating FGF21 and metabolic disorders has been reported in adults, paediatric-specific data are lacking. DESIGN AND METHODS: This study investigated the relationship between FGF21 levels and obesity, insulin resistance (IR), the metabolic syndrome (MetS) and adipokines (adiponectin, leptin and resistin) in a cohort of 3231 Chinese youngsters aged 6-18...
January 27, 2017: Diabetes & Metabolism
https://www.readbyqxmd.com/read/28128972/leptin-and-leptin-to-adiponectin-ratio-predict-adiposity-gain-in-nonobese-children-over-a-six-year-period
#14
Meixian Zhang, Hong Cheng, Xiaoyuan Zhao, Dongqing Hou, Yinkun Yan, Katherine Cianflone, Ming Li, Jie Mi
BACKGROUND: Previous longitudinal studies have shown inconsistent results regarding the influence of adipokines on changes in weight and body fat. We aimed to determine the predictive value of serum leptin, adiponectin, and their ratio on subsequent changes in obesity measures in children. METHODS: Two hundred forty-six obese and 532 nonobese children aged 6-11 years were remeasured for BMI and waist circumference after 6.4 ± 0.2 years. Z-score of BMI was used to standardize for age and sex...
January 27, 2017: Childhood Obesity
https://www.readbyqxmd.com/read/28028397/vitamin-d-status-insulin-resistance-leptin-to-adiponectin-ratio-in-adolescents-results-of-a-1-year-lifestyle-intervention
#15
Christine Rambhojan, Laurent Larifla, Josiane Clepier, Elodie Bouaziz-Amar, Fritz-Line Velayoudom-Cephise, Anne Blanchet-Deverly, Christophe Armand, Jean Plumasseau, Jean-Marc Lacorte, Lydia Foucan
AIM: We aimed to study the relationships between circulating 25-hydroxyvitamin D [25(OH)D], insulin resistance and leptin-to-adiponectin (L/A) ratio in Guadeloupean children and adolescents and to analyse the changes in 25(OH)D levels after a 1-year lifestyle intervention program. METHODS: 25(OH)D concentrations were measured via a chemiluminescence assay. Cardiometabolic risk factors, homoeostasis model assessment of insulin resistance (HOMA-IR), and adipokines were measured...
December 15, 2016: Open Access Macedonian Journal of Medical Sciences
https://www.readbyqxmd.com/read/28008865/the-relationship-between-serum-zonulin-level-and-clinical-and-laboratory-parameters-of-childhood-obesity
#16
Tuncay Küme, Sezer Acar, Hale Tuhan, Gönül Çatlı, Ahmet Anık, Özlem Gürsoy Çalan, Ece Böber, Ayhan Abacı
OBJECTIVE: To investigate the relationship between zonulin levels and clinical and laboratory parameters of childhood obesity. METHODS: The study included obese children with a body mass index (BMI) >95(th) percentile and healthy children who were of similar age and gender distribution. Clinical (BMI, waist circumferences, mid-arm circumference, triceps skinfold, percentage of body fat, systolic blood pressure, diastolic blood pressure) and biochemical (glucose, insulin, lipid levels, thyroid function tests, cortisol, zonulin and leptin levels) parameters were measured...
March 1, 2017: Journal of Clinical Research in Pediatric Endocrinology
https://www.readbyqxmd.com/read/28007844/measurement-of-immunofunctional-leptin-to-detect-and-monitor-patients-with-functional-leptin-deficiency
#17
Martin Wabitsch, Lutz Pridzun, Michael Ranke, Julia von Schnurbein, Anja Moss, Stephanie Brandt, Katja Kohlsdorf, Barbara Moepps, Michael Schaab, Jan-Bernd Funcke, Peter Gierschik, Pamela Fischer-Posovszky, Bertram Flehmig, Jürgen Kratzsch
CONTEXT AND AIMS: Functional leptin deficiency is characterized by high levels of circulating immunoreactive leptin (irLep), but a reduced bioactivity of the hormone due to defective receptor binding. As a result of the fact that affected patients can be successfully treated with metreleptin, it was aimed to develop and validate a diagnostic tool to detect functional leptin deficiency. METHODS: An immunoassay capable of recognizing the functionally relevant receptor-binding complex with leptin was developed (bioLep)...
March 2017: European Journal of Endocrinology
https://www.readbyqxmd.com/read/27990162/the-changes-of-serum-leptin-and-kisspeptin-levels-in-chinese-children-and-adolescents-in-different-pubertal-stages
#18
Hui Juan Zhu, Su Juan Li, Hui Pan, Naishi Li, Dian Xi Zhang, Lin Jie Wang, Hong Bo Yang, Qinyong Wu, Feng Ying Gong
The aim of the study is to investigate the changes of serum leptin and kisspeptin levels in children and adolescents with different pubertal stages and nutritional states. A total of 647 Chinese children and adolescents were recruited, and serum estradiol, testosterone, pituitary gonadotropins, leptin, and kisspeptin levels were measured. The results showed that serum leptin levels of boys in T2 stage were the highest among the five stages, while they showed a gradual increase from T1 to T5 stage in girls and reached the highest in T5 stage (P < 0...
2016: International Journal of Endocrinology
https://www.readbyqxmd.com/read/27974716/early-bmi-gain-and-later-height-growth-predicts-higher-dheas-concentrations-in-7-year-old-chilean-children
#19
Verónica Mericq, Ana Pereira, Ricardo Uauy, Camila Corvalán
BACKGROUND: Accelerated weight and height gain in infancy have been associated with premature adrenarche. However, the exact tempo of these events remains undefined. Thus, our goal was to assess the relationship between early BMI and height growth in different periods before 7 years of age and plasma DHEAS levels at 7 years of age. METHODS: This is a longitudinal follow-up of participants of the Growth and Obesity Chilean Cohort Study (GOCS) that represents Chilean children from low- to middle-income families...
2017: Hormone Research in Pædiatrics
https://www.readbyqxmd.com/read/27864335/effects-of-maternal-obesity-on-placental-function-and-fetal-development
#20
REVIEW
Kristy R Howell, Theresa L Powell
Obesity has reached epidemic proportions, and pregnancies in obese mothers have increased risk for complications including gestational diabetes, hypertensive disorders, pre-term birth and caesarian section. Children born to obese mothers are at increased risk of obesity and metabolic disease and are susceptible to develop neuropsychiatric and cognitive disorders. Changes in placental function not only play a critical role in the development of pregnancy complications but may also be involved in linking maternal obesity to long-term health risks in the infant...
March 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
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