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https://www.readbyqxmd.com/read/27903360/-update-on-pubertal-development-among-primary-school-students-in-shanghai-2014
#1
Y Chen, Y T Zhang, C Chen, Y R Jiang, Y J Song, S J Liu, F Jiang
Objective: To investigate the current prevalence of pubertal development in healthy Shanghai schoolchildren. Methods: This study was a cross-sectional investigation focused on current pubertal development conducted in healthy Shanghai schoolchildren by multi-stage cluster sampling. The sample included 17 571 children in grades 1-5 investigated in June 2014. The data were weighted by inverse probability weighting (IPW) to make them more representative. At examination, stages of breast and pubic hair development were rated according to the Tanner method...
November 6, 2016: Zhonghua Yu Fang Yi Xue za Zhi [Chinese Journal of Preventive Medicine]
https://www.readbyqxmd.com/read/27890604/gender-dimorphism-in-pediatric-osa-is-it-for-real
#2
REVIEW
Pablo E Brockmann, Dorit Koren, Leila Kheirandish-Gozal, David Gozal
In epidemiologic studies focused on adults, obstructive sleep apnea (OSA) has higher prevalence in men than in women. The evidence supporting a gender-related discrepant prevalence of OSA is however much more tenuous in children. Here, we aimed to review the evidence concerning gender- based differences in the prevalence of OSA in children, and if so, to examine the evidence with the intent to identify potential factors that may account for this putative association. Gender-based perception and reporting of clinical manifestations of OSA may be modulated by several social and cultural factors in children...
November 23, 2016: Respiratory Physiology & Neurobiology
https://www.readbyqxmd.com/read/27889727/longitudinal-growth-in-children-and-adolescents-with-type-1-diabetes
#3
Lavanya Parthasarathy, Vaman Khadilkar, Shashi Chiplonkar, Anuradha Khadilkar
OBJECTIVE: To study longitudinal growth in children with type 1 diabetes mellitus. METHODS: Anthropometry, disease duration, insulin regimens and HbA1C recorded from patients with diabetes enrolled in a specialty clinic. RESULTS: 160 children (75 boys; mean (SD) age 9.4 (3.3) y) were enrolled. 35% children had low (<25th centile) height velocity. Disease duration and HbA1C affected height velocity (adjusted for puberty). Children on basal-bolus had higher height velocity Z scores than those on a split mix regimen [(0...
November 15, 2016: Indian Pediatrics
https://www.readbyqxmd.com/read/27876543/in-utero-and-childhood-ddt-dde-pbde-and-pcbs-exposure-and-sex-hormones-in-adolescent-boys-the-chamacos-study
#4
Brenda Eskenazi, Stephen A Rauch, Rachel Tenerelli, Karen Huen, Nina T Holland, Robert H Lustig, Katherine Kogut, Asa Bradman, Andreas Sjodin, Kim G Harley
Dichlorodiphenyltrichloroethane (DDT), polybrominated diphenyl ether (PBDE) flame retardants, and polychlorinated biphenyls (PCBs) are believed to be endocrine-disrupting chemicals (EDCs) in humans and animals. The purpose of this study is to examine the relationship of in utero and childhood exposure to these purported EDCs and reproductive hormones in adolescent boys who participated in CHAMACOS, an ongoing birth cohort in California's Salinas Valley. We measured o,p'- and p,p'-DDT, p,p'- DDE, PBDEs and PCBs in serum collected from mothers during pregnancy or at delivery and from their sons at 9 years...
November 14, 2016: International Journal of Hygiene and Environmental Health
https://www.readbyqxmd.com/read/27861464/pubertal-height-gain-is-inversely-related-to-peak-bmi-in-childhood
#5
Anton Holmgren, Aimon Niklasson, Andreas F M Nierop, Lars Gelander, A Stefan Aronson, Agneta Sjöberg, Lauren Lissner, Kerstin Albertsson-Wikland
BackgroundChildhood BMI may influence subsequent growth in height as well as the timing of puberty. The aim of the present study was to investigate associations between BMI in childhood and subsequent height gain/pubertal growth.MethodsLongitudinal growth data were used (GrowUp1990 Gothenburg cohort, n=1901). The QEPS growth-model was used to characterize height gain in relation to the highest BMISDS value between 3.5 and 8 years of age. Children were defined as overweight/obese (OwOb) or normal weight/underweight (NwUw), using the 2012 International Obesity Task Force criteria...
November 18, 2016: Pediatric Research
https://www.readbyqxmd.com/read/27859946/impact-of-childhood-asthma-on-growth-trajectories-in-early-adolescence-findings-from-the-childhood-asthma-prevention-study-caps
#6
Maria Movin, Frances L Garden, Jennifer L P Protudjer, Vilhelmina Ullemar, Frida Svensdotter, David Andersson, Andreas Kruse, Chris T Cowell, Brett G Toelle, Guy B Marks, Catarina Almqvist
BACKGROUND AND OBJECTIVE: Understanding the associations between childhood asthma and growth in early adolescence by accounting for the heterogeneity of growth during puberty has been largely unexplored. The objective was to identify sex-specific classes of growth trajectories during early adolescence, using a method which takes the heterogeneity of growth into account and to evaluate the association between childhood asthma and different classes of growth trajectories in adolescence...
November 8, 2016: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/27852974/growth-curves-for-congenital-adrenal-hyperplasia-from-a-national-retrospective-cohort
#7
Patricia Bretones, Benjamin Riche, Emmanuel Pichot, Michel David, Pascal Roy, Véronique Tardy, Behrouz Kassai, Ségolène Gaillard, Delphine Bernoux, Yves Morel, Pierre Chatelain, Marc Nicolino, Catherine Cornu
BACKGROUND: In congenital adrenal hyperplasia (CAH), adjusting hydrocortisone dose during childhood avoids reduced adult height. However, there are currently no CAH-specific charts to monitor growth during treatment. Our objective was to elaborate growth reference charts and bone maturation data for CAH patients. METHODS: We conducted a retrospective observational cohort study, in 34 French CAH centers. Patients were 496 children born 1970-1991 with genetically proven 21-hydroxylase deficiency...
December 1, 2016: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/27815089/association-between-excessive-bmi-increase-during-puberty-and-risk-of-cardiovascular-mortality-in-adult-men-a-population-based-cohort-study
#8
Claes Ohlsson, Maria Bygdell, Arvid Sondén, Annika Rosengren, Jenny M Kindblom
BACKGROUND: Being overweight during childhood and adolescence is associated with increased risk of cardiovascular disease in adulthood, but the relative contribution of prepubertal childhood BMI and BMI change during puberty to adult mortality due to cardiovascular disease is unknown. We assessed the contribution of these two distinct developmental BMI parameters for cardiovascular mortality in adult men. METHODS: As a part of the ongoing population-based BMI Epidemiology Study (BEST) in Gothenburg, Sweden, men born between 1945 and 1961 with information on both their childhood BMI at age 8 years and BMI change during puberty were included in the study and followed up until December, 2013...
December 2016: Lancet Diabetes & Endocrinology
https://www.readbyqxmd.com/read/27810442/do-boys-eat-better-than-girls-in-india-longitudinal-evidence-on-dietary-diversity-and-food-consumption-disparities-among-children-and-adolescents
#9
Elisabetta Aurino
This paper examines the dynamics of gender-based disparities in the intra-household allocation of food during childhood and adolescence in Andhra Pradesh and Telangana by using three rounds of longitudinal data from two cohorts. While boys are advantaged at all ages (except for the Younger Cohort at 12 years old), the pro-boy gap widens markedly at 15 years old. Specifically, mid-adolescent girls tend to consume fewer protein- and vitamin-rich foods such as eggs, legumes, root vegetables and fruit. This result is robust to gender differences between adolescents in terms of puberty onset, school enrolment, time use and dietary behaviours...
October 27, 2016: Economics and Human Biology
https://www.readbyqxmd.com/read/27802095/sex-differences-in-associations-of-adiposity-measures-and-insulin-resistance-in-us-hispanic-latino-youth-the-hispanic-community-children-s-health-study-study-of-latino-youth-sol-youth
#10
Qibin Qi, Simin Hua, Krista M Perreira, Jianwen Cai, Linda Van Horn, Neil Schneiderman, Bharat Thyagarajan, Alan M Delamater, Robert C Kaplan, Carmen R Isasi
CONTEXT: US Hispanic/Latino youth are disproportionally affected by the obesity and diabetes. OBJECTIVE: We examined associations of adiposity measures with insulin resistance (IR) and hyperglycemia, and influences of sex and pubertal development on these associations. DESIGN, SETTING AND PARTICIPANTS: Cross-sectional analysis of 1,223 8-16 year-old Hispanic/Latino youth from a community-based study in US (SOL Youth). MAIN OUTCOME MEASURES: IR (≥75th percentile of sex-specific HOMA-IR) and hyperglycemia (fasting glucose≥100mg/dl or HbA1c≥5...
November 1, 2016: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/27799946/anti-m%C3%A3-llerian-hormone-as-a-marker-of-steroid-and-gonadotropin-action-in-the-testis-of-children-and-adolescents-with-disorders-of-the-gonadal-axis
#11
REVIEW
Nadia Y Edelsztein, Romina P Grinspon, Helena F Schteingart, Rodolfo A Rey
In pediatric patients, basal testosterone and gonadotropin levels may be uninformative in the assessment of testicular function. Measurement of serum anti-Müllerian hormone (AMH) has become increasingly widespread since it provides information about the activity of the male gonad without the need for dynamic tests, and also reflects the action of FSH and androgens within the testis. AMH is secreted in high amounts by Sertoli cells from fetal life until the onset of puberty. Basal AMH expression is not dependent on gonadotropins or sex steroids; however, FSH further increases and testosterone inhibits AMH production...
2016: International Journal of Pediatric Endocrinology
https://www.readbyqxmd.com/read/27774832/gender-differences-in-first-onset-schizophrenia-spectrum-psychoses
#12
Sanni Talonen, Juha Väänänen, Riittakerttu Kaltiala-Heino
BACKGROUND: Mental health profiles differ between boys and girls from puberty onwards. It is not known whether differences also extend to symptom presentation in schizophrenia spectrum disorders. It may be that girls and boys are not treated entirely equally by the professionals. AIMS: To study gender differences in symptom profiles, family adversities, pathway to care, and characteristics of inpatient treatment at the first episode of diagnosed schizophrenia spectrum disorder (F20-29) among adolescents aged 13-17...
October 24, 2016: Nordic Journal of Psychiatry
https://www.readbyqxmd.com/read/27773621/testis-sparing-surgery-for-leydig-cell-pathologies-in-children
#13
Senol Emre, Rahsan Ozcan, Mehmet Elicevik, Haluk Emir, Yunus Soylet, Cenk Buyukunal
OBJECTIVE: The aim was to analyze testis-sparing surgical procedures in boys with Leydig cell pathologies. STUDY DESIGN: The hospital records of four boys with Leydig cell hyperplasia who underwent testis-sparing surgery for testicular masses between 2000 and 2012 were analyzed retrospectively. Tumor markers were evaluated and all boys underwent scrotal ultrasonography preoperatively. The hormonal profile was also analyzed for symptoms of precocious puberty. The testis was delivered through a high transverse inguinal incision and the tumor was excised by enucleation...
October 11, 2016: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/27769633/urine-bisphenol-a-and-pubertal-development-in-boys
#14
Ziliang Wang, Dekun Li, Maohua Miao, Hong Liang, Jianping Chen, Zhijun Zhou, Chunhua Wu, Wei Yuan
BACKGROUND: Bisphenol A (BPA) is an environmental endocrine disruptor and is found in many consumer products. Animal studies suggest that BPA may perturb pubertal development in males, although studies in humans are limited. OBJECTIVE: This study investigated the association between BPA exposure and pubertal onset and progression among school-aged boys in Shanghai, China. METHODS: A total of 671 boys aged 9-18 years from three schools (one elementary, one middle, and one high school) in Shanghai were enrolled in a cross-sectional study...
January 2017: International Journal of Hygiene and Environmental Health
https://www.readbyqxmd.com/read/27759979/comparison-of-body-fat-calculations-by-sex-and-puberty-status-in-obese-schoolchildren-using-two-and-four-compartment-body-composition-models
#15
Fabián Vásquez, Gabriela Salazar, Erik Díaz, Lydia Lera, Alyerina Anziani, Raquel Burrows
INTRODUCTION: Determine body composition changes in adiposity can assess an individual. OBJECTIVE: The objective of this study was to evaluate total body fat percentage based on two and four compartment models in obese Chilean school children, adjusting for differences in sex and puberty status. METHODS: Sixty-one obese school children (33 boys and 28 girls) between 8 and 13 years of age were evaluated. Two compartment measurements of body fat percentage considered isotope dilution, plethysmography, radiographic absorptiometry and bioelectrical impedance; using the four compartment model as a benchmark...
September 20, 2016: Nutrición Hospitalaria: Organo Oficial de la Sociedad Española de Nutrición Parenteral y Enteral
https://www.readbyqxmd.com/read/27757577/automated-determination-of-bone-age-from-hand-x-rays-at-the-end-of-puberty-and-its-applicability-for-age-estimation
#16
Hans Henrik Thodberg, Rick R van Rijn, Oskar G Jenni, David D Martin
The BoneXpert method for automated determination of bone age from hand X-rays was introduced in 2009, covering the Greulich-Pyle bone age ranges up to 17 years for boys and 15 years for girls. This paper presents an extension of the method up to bone age 19 years for boys and 18 years for girls. The extension was developed based on images from the First Zurich Longitudinal Study of 231 healthy children born in 1954-1956 and followed with annual X-rays of both hands until adulthood. The method was validated on two cross-sectional studies of healthy children from Rotterdam and Los Angeles...
October 18, 2016: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/27753812/ssa-04-3-leptin-adiponectin-in-cardiometabolic-disease
#17
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/27747141/pubertal-development-emotion-regulatory-styles-and-the-emergence-of-sex-differences-in-internalizing-disorders-and-symptoms-in-adolescence
#18
Lauren B Alloy, Jessica L Hamilton, Elissa J Hamlat, Lyn Y Abramson
Adolescence marks the emergence of sex differences in internalizing symptoms and disorders, with girls at increased risk for depression and anxiety during the pubertal transition. However, the mechanisms through which puberty confers risk for internalizing psychopathology for girls, but not boys, remain unclear. We examined two pubertal indicators (pubertal status and timing) as predictors of the development of emotion regulation styles (rumination and emotional clarity) and depressive and anxiety symptoms and disorders in a three-wave study of 314 adolescents...
September 2016: Clinical Psychological Science
https://www.readbyqxmd.com/read/27746897/proximal-hypospadias-we-aren-t-always-keeping-our-promises
#19
Christopher J Long, Douglas A Canning
Hypospadias surgery is a humbling art form. The evolution of surgical techniques has made distal hypospadias outcomes favorable, but recent publications suggest that our complication rates for proximal hypospadias are much higher than previously reported. To explain these shortcomings, we examine the literature and focus on the lack of standardized documentation, the subsequent inability to objectify the severity of the phenotype, and the underestimation of complications due to lack of long-term follow up. The variability in surgical technique and the fact that the literature abounds with small case series from single institutions also limits our ability to compare outcomes...
2016: F1000Research
https://www.readbyqxmd.com/read/27740920/immaturity-in-puberty-and-negative-attitudes-toward-reproductive-health-among-indonesian-adolescents
#20
Tantut Susanto, Ruka Saito, Rumiko Kimura, Akiko Tsuda, Noriko Tabuchi, Junko Sugama
BACKGROUND: Complex factors influence adolescents' attitudes. Secondary sexual development and emotional changes are markers of puberty and affect attitudes toward reproductive health (RH). This is especially evident in the society and culture of Indonesia. This study examined the presence of immaturity at puberty and factors associated with negative attitudes toward RH among Indonesian adolescents. METHODS: We conducted a cross-sectional study with 1040 students (aged 11-16 years) selected using multistage random cluster sampling...
October 14, 2016: International Journal of Adolescent Medicine and Health
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