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leptin , Obesity children

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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
#1
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
#2
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
#3
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
#4
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
#5
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-of-serum-zonulin-level-with-clinical-and-laboratory-parameters-in-childhood-obesity
#6
Tuncay Küme, Sezer Acar, Hale Tuhan, Gönül Çatlı, Ahmet Anık, Özlem Gürsoy Çalan, Ece Böber, Ayhan Abacı
OBJECTIVE: The aim of this study was to investigate the relationship between zonulin and clinical laboratory parameters in childhood obesity. METHODS: The study included obese children with a body mass index >95th percentile and healthy children who were similar age and gender distribution. Clinical (body mass index, waist circumferences, mid arm circumference, triceps skin fold, percentage of body fat, systolic blood pressure, diastolic blood pressure) and biochemical (glucose, insulin, lipids, thyroid function tests, cortisol, zonulin and leptin levels) parameters were measured...
December 23, 2016: 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
#7
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
#8
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
#9
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...
December 15, 2016: Hormone Research in Pædiatrics
https://www.readbyqxmd.com/read/27864335/effects-of-maternal-obesity-on-placental-function-and-fetal-development
#10
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
https://www.readbyqxmd.com/read/27863153/the-relationship-between-breast-milk-leptin-and-adiponectin-with-child-body-composition-from-3-to-5%C3%A2-years-a-follow-up-study
#11
D M Meyer, C Brei, L Stecher, D Much, S Brunner, H Hauner
BACKGROUND: Research indicates that breast milk contains bioactive components that influence metabolism in infancy and may play a role in the prevention of obesity in early childhood. In our initial study, 147 breastfeeding mother/child pairs were followed from birth to 2 years of age to examine the relationship between breast milk leptin and total adiponectin (collected at 6 weeks and 4 months postpartum) and infant body composition. Higher breast milk total adiponectin was related to greater fat mass and weight gain in children at 1 and 2 years of age, whereas leptin showed no association...
November 10, 2016: Pediatric Obesity
https://www.readbyqxmd.com/read/27753812/ssa-04-3-leptin-adiponectin-in-cardiometabolic-disease
#12
Patricio Lopez-Jaramillo
Cardiovascular diseases (CVD) are major causes of death and illness worldwide. In recent decades an increased prevalence of CVD mortality has been reported in low-medium income countries, which has been associated with changes in life styles, deficiencies in health systems and the persistence of social inequities.The metabolic syndrome comprises a cluster of cardiometabolic risk factors, with insulin resistance and increased adiposity as its central features. Identifying individuals with metabolic syndrome is important due to its association with an increased risk of coronary heart disease and type 2 diabetes mellitus (DM2)...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27720196/early-improvement-in-obstructive-sleep-apnea-and-increase-in-orexin-levels-after-bariatric-surgery-in-adolescents-and-young-adults
#13
Raouf Amin, Narong Simakajornboon, Rhonda Szczesniak, Thomas Inge
BACKGROUND: Obstructive sleep apnea (OSA) associated with obesity is known to improve after bariatric surgery, but little is known about early changes in this condition after surgery. OBJECTIVES: To study the clinical course of OSA after bariatric surgery SETTING: Children's hospital in the United States METHODS: Adolescents and young adults with obstructive sleep apnea undergoing vertical sleeve gastrectomy (n = 6) or gastric bypass (n = 1) were enrolled in this prospective study...
January 2017: Surgery for Obesity and related Diseases: Official Journal of the American Society for Bariatric Surgery
https://www.readbyqxmd.com/read/27687882/reference-values-for-serum-leptin-in-healthy-non-obese-children-and-adolescents
#14
Ulrik Lausten-Thomsen, Michael Christiansen, Paula Louise Hedley, Cilius Esmann Fonvig, Theresa Stjernholm, Oluf Pedersen, Torben Hansen, Jens-Christian Holm
BACKGROUND: Adipokines are biologically active, low-molecular weight peptides, which play a major role in metabolic homeostasis in humans. Leptin has gained increasing attention in pediatrics as a biomarker for various metabolic pathologies. Yet, its usefulness is hampered by the relative lack of reference values from pediatric settings. Accordingly, this study aims to evaluate serum concentrations of leptin, soluble leptin receptor (sOB-R), and free leptin index (FLI) in healthy Danish schoolchildren aged 6-18 years and subsequently to establish reference intervals across sex and age groups...
November 2016: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/27651112/inflammation-mediates-the-association-between-visceral-adiposity-and-obstructive-sleep-apnea-in-adolescents
#15
Jordan Gaines, Alexandros N Vgontzas, Julio Fernandez-Mendoza, Susan L Calhoun, Fan He, Duanping Liao, Marjorie D Sawyer, Edward O Bixler
Only a handful of studies, primarily in clinical samples, have reported an association between obesity, inflammation, and obstructive sleep apnea (OSA) in children and adolescents. No studies, however, have examined the pathogenetic link between visceral adiposity, systemic inflammation, and incident OSA in a large general population sample using objective measures of sleep and body fat. Adolescents (n = 392; mean age 17.0 ± 2.2 yr, 54.0% male) from the Penn State Child Cohort (PSCC) underwent 9-h overnight polysomnography; a DXA scan to assess body fat distribution; and a single fasting blood draw for the assessment of plasma interleukin-6 (IL-6), IL-6 soluble receptor (IL-6 sR), tumor necrosis factor alpha (TNFα), tumor necrosis factor receptor 1A (TNFR1), C-reactive protein (CRP), leptin, and adiponectin levels via ELISA...
November 1, 2016: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/27643352/ssa-04-3-leptin-adiponectin-in-cardiometabolic-disease
#16
Patricio Lopez-Jaramillo
Cardiovascular diseases (CVD) are major causes of death and illness worldwide. In recent decades an increased prevalence of CVD mortality has been reported in low-medium income countries, which has been associated with changes in life styles, deficiencies in health systems and the persistence of social inequities.The metabolic syndrome comprises a cluster of cardiometabolic risk factors, with insulin resistance and increased adiposity as its central features. Identifying individuals with metabolic syndrome is important due to its association with an increased risk of coronary heart disease and type 2 diabetes mellitus (DM2)...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27604470/evidence-for-energy-conservation-during-pubertal-growth-a-10-year-longitudinal-study-earlybird-71
#17
M Mostazir, A Jeffery, J Hosking, B Metcalf, L Voss, T Wilkin
BACKGROUND: Diabetes is closely linked to obesity, and obesity rates climb during adolescence for reasons that are not clear. Energy efficiency is important to obesity, and we describe a temporary but substantial fall in absolute energy expenditure, compatible with improved energy efficiency, during the rapid growth phase of puberty. METHODS: In a longitudinal cohort study lasting 10 years, we measured voluntary energy expenditure as physical activity (PA) by accelerometry, involuntary energy expenditure as resting energy expenditure (REE) by oxygen consumption, body mass index (BMI) and body composition by dual energy X-ray absorptiometry annually on 10 occasions from 7 to 16 years in the 347 children of the EarlyBird study...
October 4, 2016: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/27598978/correlation-between-adipokines-and-carotid-intima-media-thickness-in-a-group-of-obese-romanian-children-is-small-for-gestational-age-status-an-independent-factor-for-cardiovascular-risk
#18
Ramona Stroescu, Teofana Bizerea, Gabriela Doroş, Monica Marazan, Maria Lesovici, Otilia Mãrginean
Objective: To investigate the relationship between markers of adiposity and common carotid artery (CIMT) in obese children born small for gestational age (SGA) versus appropriate for gestational age (AGA), to establish cut-off values for CIMT in obese pediatric populations. Subjects and methods: A cross-sectional study was carried out over a 1-year period (Jul 2013 - June 2014). We analyzed 122 obese patients aged 4-20 (mean age 14.9 ± 2.28). Twenty-six patients were born SGA...
September 5, 2016: Archives of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/27598976/leptin-as-a-predictor-of-metabolic-syndrome-in-prepubertal-children
#19
Isabel Madeira, Maria Alice Bordallo, Nádia Cristina Rodrigues, Cecilia Carvalho, Fernanda Gazolla, Paulo Collett-Solberg, Clarice Medeiros, Ana Paula Bordallo, Marcos Borges, Claudia Monteiro, Rebeca Ribeiro
Objective: Leptin has been suggested as a potential biomarker of cardiovascular risk. This paper aims to ascertain, based on a sample of prepubertal children, which serum leptin value best suited to identify metabolic syndrome (MS). Subjects and methods: This observational, cross-sectional study recruited children from the outpatient pediatrics clinic, with the purpose of validating serum leptin level cutoffs to identify MS. All obese and overweight children who met eligibility criteria were included in the study, as was a sample of normal-weight children...
September 5, 2016: Archives of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/27587073/high-sensitivity-c-reactive-protein-and-leptin-levels-related-to-body-mass-index-changes-throughout-childhood
#20
Pilar Navarro, Olaya de Dios, Teresa Gavela-Pérez, Asha Jois, Carmen Garcés, Leandro Soriano-Guillén
OBJECTIVES: To analyze the association between high-sensitivity C-reactive protein (hs-CRP) levels and cardiovascular risk factors in healthy school children, and to evaluate whether changes in body mass index (BMI) category throughout childhood affect hs-CRP levels. STUDY DESIGN: We measured serum hs-CRP levels, lipid profile, insulin levels, and leptin levels in 683 prepubertal children and 748 adolescents. A total of 272 children participated in the study in both cohorts, prepubertal (baseline; age 6-8 years) and adolescents (follow-up; age 12-16 years)...
August 29, 2016: Journal of Pediatrics
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