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https://www.readbyqxmd.com/read/29238730/interaction-of-pubertal-development-and-metabolic-control-in-adolescents-with-type-1-diabetes-mellitus
#1
M Plamper, B Gohlke, J Woelfle, K Konrad, T Rohrer, S Hofer, W Bonfig, K Fink, R W Holl
Background: In T1DM, delayed pubertal development and reduced final height are associated with inadequate metabolic control. Objective: To assess whether T1DM affects pubertal growth spurt and whether metabolic control during puberty is gender-related. Methods: Using a large multicentre database, longitudinal data from 1294 patients were analysed. Inclusion criteria: complete records of height and HbA1c from the age of seven to 16 years. Exclusion criteria: other significant chronic diseases and medications, T1DM duration less than three months, and initial BMI < 3rd or >97th percentile...
2017: Journal of Diabetes Research
https://www.readbyqxmd.com/read/29222425/polymorphisms-in-jmjd1c-are-associated-with-pubertal-onset-in-boys-and-reproductive-function-in-men
#2
Nina Mørup, Alexander Siegfried Busch, Anne Kirstine Bang, Loa Nordkap, John E Nielsen, Ewa Rajpert-De Meyts, Anders Juul, Niels Jørgensen, Kristian Almstrup
JMJD1C, a member of the Jumonji-domain containing histone demethylases protein family, has been associated with levels of sex-hormone binding globulin (SHBG) and testosterone in men, and knock-out rodent models show age-dependent infertility. The objective of this study was to investigate whether single nucleotide polymorphisms (SNPs) nearby JMJD1C are associated with pubertal onset in boys and with male reproduction. 671 peri-pubertal boys, 1,027 young men, 315 fertile men, and 252 infertile men were genotyped for two JMJD1C SNPs (rs7910927 and rs10822184)...
December 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29216895/-we-do-not-know-a-qualitative-study-exploring-boys-perceptions-of-menstruation-in-india
#3
Linda Mason, Muthusamy Sivakami, Harshad Thakur, Narendra Kakade, Ashley Beauman, Kelly T Alexander, Anna Maria van Eijke, Kayla F Laserson, Mamita B Thakkar, Penelope A Phillips-Howard
BACKGROUND: In low-middle income countries and other areas of poverty, menstrual hygiene management (MHM) can be problematic for women and girls. Issues include lack of knowledge about menstruation and MHM, and stigma around menstruation, also access to affordable and absorbent materials; privacy to change; adequate washing, cleaning and drying facilities; as well as appropriate and accessible disposal facilities. In order to effect change and tackle these issues, particularly in patriarchal societies, males may need to become advocates for MHM alongside women...
December 8, 2017: Reproductive Health
https://www.readbyqxmd.com/read/29213166/precocious-puberty-an-experience-from-a-major-teaching-hospital-in-central-saudi-arabia
#4
Huda A Osman, Nasir A M Al-Jurayyan, Amir M I Babiker, Hessah M N Al-Otaibi, Reem D H AlKhalifah, Sharifah D A Al Issa, Sarar Mohamed
Precocious puberty is a developmental process that gives rise to secondary sexual characteristics before the age of 8 years in girls and 9 years in boys. In general, precocious puberty can be classified as central or peripheral. This is a retrospective hospital-based study was conducted at King Khalid University Hospital (KKUH), Riyadh, Saudi Arabia, during the period January 1990 and December 2016. Data were abstracted from the medical records of patients diagnosed with precocious puberty, with special emphasis on age, sex, clinical characteristics, and relevant hormonal assay...
2017: Sudanese Journal of Paediatrics
https://www.readbyqxmd.com/read/29201068/gender-identity-in-patients-with-congenital-adrenal-hyperplasia
#5
Maryam Razzaghy-Azar, Sakineh Karimi, Elham Shirazi
Background: Sex assignment in infancy for patients with disorder of sex development (DSD) is a challenging problem. Some of the patients with congenital adrenal hyperplasia (CAH) have DSD that may affect their gender identity. Objectives: The study aimed to assess gender identity in patients with CAH. Methods: In this study, 52 patients with CAH, including 22 prepubertal children and 30 adolescents and adults, were assessed using two separate gender identity questionnaires for children and adults based on the criteria of diagnostic and statistical manual of mental disorders, 5th edition...
July 2017: International Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29195161/prenatal-and-pubertal-testosterone-affect-brain-lateralization
#6
T Beking, R H Geuze, M van Faassen, I P Kema, B P C Kreukels, T G G Groothuis
After decades of research, the influence of prenatal testosterone on brain lateralization is still elusive, whereas the influence of pubertal testosterone on functional brain lateralization has not been investigated, although there is increasing evidence that testosterone affects the brain in puberty. We performed a longitudinal study, investigating the relationship between prenatal testosterone concentrations in amniotic fluid, pubertal testosterone concentrations in saliva, and brain lateralization (measured with functional Transcranial Doppler ultrasonography (fTCD)) of the Mental Rotation, Chimeric Faces and Word Generation tasks...
November 6, 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/29193487/impaired-fasting-glucose-and-the-metabolic-profile-in-danish-children-and-adolescents-with-normal-weight-overweight-or-obesity
#7
Julie T Kloppenborg, Cilius E Fonvig, Tenna R H Nielsen, Pernille M Mollerup, Christine Bøjsøe, Oluf Pedersen, Jesper Johannesen, Torben Hansen, Jens-Christian Holm
OBJECTIVE: Whether the definitions of impaired fasting glucose (IFG) from the American Diabetes Association (ADA) and the World Health Organization (WHO) differentially impact estimates of the metabolic profile and IFG-related comorbidities in Danish children and adolescents is unknown. METHODS: Two thousand one hundred and fifty four (979 boys) children and adolescents with overweight or obesity (median age 12 years) and 1824 (728 boys) children with normal weight (median age 12 years) from The Danish Childhood Obesity Biobank were studied...
November 28, 2017: Pediatric Diabetes
https://www.readbyqxmd.com/read/29168363/free-estradiol-index-levels-associated-with-high-sensitivity-crp-levels-in-male-children
#8
Mehmet Ağırbaşlı, Azra Tanrıkulu, Munir Azizy
Ağırbaşlı M, Tanrıkulu A, Azizy M. Free estradiol index levels associated with high sensitivitiy CRP levels in male children. Turk J Pediatr 2017; 59: 49-55. Biomarkers of inflammation such as high-sensitivity C-reactive protein (hs-CRP) associate with subclinical atherosclerosis. Atherosclerosis is an early onset disease in life. Sex hormones and puberty modulate metabolism in children. Studies indicate that low sex hormone binding globulin (SHBG) levels associate with insulin resistance and metabolic syndrome in children...
2017: Turkish Journal of Pediatrics
https://www.readbyqxmd.com/read/29163668/sexual-and-reproductive-health-needs-and-risks-of-very-young-adolescent-refugees-and-migrants-from-myanmar-living-in-thailand
#9
Catherine Lee, Yasmina Aules, Samira Sami, Paw Kree Lar, Jennifer Schlect, Courtland Robinson
Background: The very young adolescent (VYA) population age 10-14 years is often neglected in the field of sexual and reproductive health (SRH) research due to the combined sensitivity of the topic and the young age group, resulting in little data about the SRH needs and concerns of VYA. In 2013, the Women's Refugee Commission (WRC), Johns Hopkins University (JHU), Adolescent and Reproductive Health Network (ARHN) and Karen Youth Organization (KYO) implemented qualitative participatory research to explore the SRH needs and risks of VYA...
2017: Conflict and Health
https://www.readbyqxmd.com/read/29155850/pre-pubertal-exposure-with-phthalates-and-bisphenol-a-and-pubertal-development
#10
Monika Kasper-Sonnenberg, Jürgen Wittsiepe, Katharina Wald, Holger M Koch, Michael Wilhelm
OBJECTIVE: Epidemiological studies indicate associations between childhood exposure with phthalates and bisphenol A (BPA) and the pubertal development. We examined associations between the pre-pubertal phthalate and BPA body burden and the longitudinally assessed sexual maturation of eight- to thirteen-year-old children. METHODS: We started with eight- to ten-year-old children in the baseline study and quantified phthalate metabolites and BPA in 472 urine samples (250 boys; 222 girls; mean age: 8...
2017: PloS One
https://www.readbyqxmd.com/read/29155806/anogenital-distance-as-a-phenotypic-signature-through-infancy
#11
Lærke Priskorn, Jørgen H Petersen, Niels Jørgensen, Henriette B Kyhl, Marianne S Andersen, Katharina M Main, Anna-Maria Andersson, Niels E Skakkebaek, Tina K Jensen
BACKGROUND: Anogenital distance (AGD) has been suggested to represent a phenotypic signature reflecting in utero androgen action. However, it is not known whether an individual's AGD at birth correlates to AGD later in life. We investigate correlations of AGD between 3 and 18 months and asses reproducibility of measurements. METHODS: We measured AGD from anus to scrotum (AGDas) and penis (AGDap) in 407 boys, and to posterior fourchette (AGDaf) and clitoris (AGDac) in 282 girls...
November 20, 2017: Pediatric Research
https://www.readbyqxmd.com/read/29155118/patterns-of-neuroendocrine-coupling-in-9-year-old-children-effects-of-sex-body-mass-index-and-life-stress
#12
Sarah R Black, Matthew D Lerner, Elizabeth A Shirtcliff, Daniel N Klein
Previous investigations have explored stress and pubertal hormones in parallel; it has been a recent development, however, to explore the relationships between different hormones during puberty, and how this hormonal cross-talk may be influenced by the environment. The current study investigated neuroendocrine coupling, or the extent to which hormones are correlated within the individual, and also investigated early life stressors that may influence coupling. Participants were 405 adrenarcheal children (mean Tanner stage=1...
November 16, 2017: Biological Psychology
https://www.readbyqxmd.com/read/29144249/effect-of-antiandrogen-aromatase-inhibitor-and-gonadotropin-releasing-hormone-analog-on-adult-height-in-familial-male-precocious-puberty
#13
Ellen Werber Leschek, Armando C Flor, Joy C Bryant, Janet V Jones, Kevin M Barnes, Gordon B Cutler
OBJECTIVE: Antiandrogen, aromatase inhibitor, and gonadotropin-releasing hormone analog (GnRHa) treatment normalizes growth rate and bone maturation and increases predicted adult height (AH) in boys with familial male-limited precocious puberty (FMPP). To evaluate the effect of long-term antiandrogen, aromatase inhibitor, and GnRHa on AH, boys with FMPP who were treated were followed to AH. STUDY DESIGN: Twenty-eight boys with FMPP, referred to the National Institutes of Health, were started on antiandrogen and aromatase inhibitor at 4...
November 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/29143410/early-contributions-to-infants-mental-rotation-abilities
#14
Mihaela Constantinescu, David S Moore, Scott P Johnson, Melissa Hines
Some cognitive abilities exhibit reliable gender differences, with females outperforming males in specific aspects of verbal ability, and males showing an advantage on certain spatial tasks. Among these cognitive gender differences, differences in mental rotation are the most robust, and appear to be present even in infants. A large body of animal research suggests that gonadal hormones, particularly testosterone, during early development could contribute to this gender difference in mental rotation. Also, substantial evidence supports an influence of socialization on mental rotation performance...
November 15, 2017: Developmental Science
https://www.readbyqxmd.com/read/29137163/association-between-small-fetuses-and-puberty-timing-a-systematic-review-and-meta-analysis
#15
REVIEW
Xu Deng, Wenyan Li, Yan Luo, Shudan Liu, Yi Wen, Qin Liu
Background: Epidemiological studies reporting the effect of small fetuses (SF) on puberty development have shown inconsistent results. Objective: To examine current study evidence and determine the strength and direction of the association between SF and puberty timing. Methods: PubMed, OVID, Web of Science, EBSCO, and four Chinese databases were searched from their date of inception to February 2016. All cohort studies that examined the association between SF and puberty timing in children were identified...
November 13, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29135489/endocrine-disrupters-and-pubertal-timing
#16
Louise C Greenspan, Mary M Lee
PURPOSE OF REVIEW: The current review summarizes recent epidemiologic data demonstrating the effects of endocrine disrupting compounds (EDCs) on the timing of puberty and highlights the complexity of understanding the interplay of environmental and genetic factors on pubertal timing. RECENT FINDINGS: In girls, there have been mixed results, with some exposures being associated with earlier timing of puberty, and some with later puberty. In boys, prepubertal exposures to nondioxin-like polychlorinated biphenyls accelerate puberty, whereas levels of insecticides, dioxin-like compounds, organochlorine pesticides, and lead delay puberty...
November 11, 2017: Current Opinion in Endocrinology, Diabetes, and Obesity
https://www.readbyqxmd.com/read/29132462/-familial-male-limited-precocious-puberty-due-to-asp578his-mutations-in-the-lhcgr-gene-clinical-characteristics-and-gene-analysis-in-an-infant
#17
Min Wang, Min Li, Yue-Sheng Liu, Si-Min Lei, Yan-Feng Xiao
The aim of the study was to provide a descriptive analysis of familial male-limited precocious puberty (FMPP), which is a rare inherited disease caused by heterozygous constitutively activating mutations of the luteinizing hormone/choriogonadotropin receptor gene (LHCGR). The patient was a ten-month-old boy, presenting with penile enlargement, pubic hair formation, and spontaneous erections. Based on the clinical manifestations and laboratory data, including sexual characteristics, serum testosterone levels, GnRH stimulation test, and bone age, this boy was diagnosed with peripheral precocious puberty...
November 2017: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/29102298/orchidopexy-in-children-with-prader-willi-syndrome-results-of-a-long-term-follow-up-study
#18
Maurizio Pacilli, Yves Heloury, Mike O'Brien, Tess Lionti, Margaret Rowell, John Hutson
INTRODUCTION: Prader-Willi syndrome (PWS) is a rare (1:20.000) genetic condition affecting both males and females. Among other features, in boys, the syndrome is characterized by cryptorchidism in 86-100% of cases, hypogonadism, delayed puberty and infertility. The aim of the present study is to appraise the results of orchidopexy in this selected population of children. STUDY DESIGN: A follow-up study of children with PWS treated for undescended testes at a single institution over a 20-year period was performed...
October 16, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/29094978/racial-identity-in-the-context-of-pubertal-development-implications-for-adjustment
#19
Rona Carter, Eleanor K Seaton, Deborah Rivas-Drake
The developmental significance of youths' racial identities during adolescence is well established. It is less clear how puberty, a normative process, influences the relationship between racial identity and adjustment outcomes during adolescence. This study examined whether puberty moderates the relationship between racial identity dimensions and internalizing and externalizing outcomes, and whether the effects of puberty and racial identity on internalizing and externalizing outcomes vary by child sex. Data are drawn from African American families (N = 176; 48% female) who participated in Waves 4 and 5 of Phase III of the NICHD SECCYD...
November 2017: Developmental Psychology
https://www.readbyqxmd.com/read/29094880/disorders-of-puberty-an-approach-to-diagnosis-and-management
#20
REVIEW
David A Klein, Jill E Emerick, Jillian E Sylvester, Karen S Vogt
Disorders of puberty can profoundly impact physical and psychosocial well-being. Precocious puberty is pubertal onset before eight years of age in girls and before nine years of age in boys. Patients with early isolated pubertal changes, prepubertal linear growth, and no worrisome neurologic symptoms typically have a benign pattern of development and should be monitored in the appropriate clinical context. Among patients with true precocious puberty, or full activation of the hypothalamic-pituitary-gonadal axis, most girls have an idiopathic etiology, whereas it is commonly due to identifiable pathology on imaging in boys...
November 1, 2017: American Family Physician
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