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puberty boys

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
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
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...
October 15, 2016: International Journal of Hygiene and Environmental Health
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
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
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
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
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
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
Ieva Masliukaite, Julie M Hagen, Kirsi Jahnukainen, Jan-Bernd Stukenborg, Sjoerd Repping, Fulco van der Veen, Madelon van Wely, Ans M M van Pelt
OBJECTIVE: To collect published data on spermatogonial quantity in the testes of healthy children and calculate the reference values of spermatogonial quantities throughout prepuberty. DESIGN: Systematic literature search in PubMed and EMBASE focusing on the number of spermatogonia per transverse tubular cross section (S/T) and spermatogonial density per cubic centimeter (cm(3)) of testicular volume (S/V) throughout prepuberty. SETTING: None...
October 4, 2016: Fertility and Sterility
(no author information available yet)
Teenagers' tendency to put on weight at puberty has been linked to a sudden drop in the calories burned while resting, in a new study. When girls and boys reach puberty there is a rapid drop in calories burned, which is counter-intuitive as calories burned could be expected to rise with the growth spurt.
October 7, 2016: Nursing Children and Young People
Manouk van der Steen, Rolph Pfundt, Stephan J W H Maas, Willie M Bakker-vanWaarde, Roelof J Odink, Anita C S Hokken-Koelega
BACKGROUND: Some children born SGA show advanced bone age (BA) during GH treatment. ACAN-gene mutations have been described in children with idiopathic short stature and advanced BA. OBJECTIVE: To determine presence of ACAN-gene mutations in short SGA children with advanced BA and to assess the response to GH treatment. METHODS: BA assessment in 290 GH-treated SGA children and ACAN-sequencing in 29 children with advanced BA of ≥0.5 years compared to calendar age...
October 6, 2016: Journal of Clinical Endocrinology and Metabolism
Nelly Mauras, Judith L Ross, Priscila Gagliardi, Y Miles Yu, Jobayer Hossain, Joseph Permuy, Ligeia Damaso, Debbie Merinbaum, Ravinder J Singh, Ximena Gaete, Veronica Mericq
CONTEXT: Growth of short children in puberty is limited by estrogen's effect on epiphyseal fusion. OBJECTIVES: To compare: (1) efficacy and safety of aromatase inhibitors (AIs) vs. GH vs. AI/GH on increasing adult height potential in pubertal boys with severe idiopathic short stature (ISS); and (2) body composition among groups. DESIGN: Randomized 3 arms open-label comparator Setting: Outpatient clinical research Patients: 76 pubertal boys, mean (SE) age: 14...
October 6, 2016: Journal of Clinical Endocrinology and Metabolism
Zijo Begic, Edin Begic, Senka Mesihovic-Dinarevic, Izet Masic, Senad Pesto, Mirza Halimic, Almira Kadic, Amra Dobraca
OBJECTIVE: To show the place and role of continuous electrocardiographic twenty-four-hour ECG monitoring in daily clinical practice of pediatric cardiologists. METHODS: According to protocol, 2753 patients underwent dynamic continuous ECG Holter monitoring (data collected from the "Register of ECG Holter monitoring" of Pediatric Clinic, UCC Sarajevo in period April 2003- April 2015). RESULTS: There were 50,5% boys and 49,5% girls, aged from birth to 19 years (1,63% - neonates and infants, 2,6% - toddlers, 9,95% - preschool children, 35,5% - gradeschoolers and 50,3% children in puberty and adolescence)...
July 16, 2016: Acta Informatica Medica: AIM
Rikke Thaarup Wesselhöft
Major depressive disorder (MDD) is a frequent and painful mental disorder considered among the five leading causes of disability in Western countries by the World Health Organization. MDD occurs at all ages, but childhood onset MDD has a more severe course with longer depressive episodes, more suicidality, and more frequent hospitalization, than later onset MDD. Childhood seems to be a window of opportunity for prevention of mental disorders, and subsequently prevention of MDD onset in childhood is recommended...
October 2016: Danish Medical Journal
Teng Maëlys, Gilberte Robain, Samy Bendaya
OBJECTIVE: Sacral neuromodulation is usually used to treat non-obstructive urinary retention when other forms of treatment have failed. An improvement greater than 50% in urinary symptoms after 40months of follow-up has been shown: - moreover, it also has few complications: infections, technical failures, discomfort; - we report a case of dystonia of the lower limb, appeared after sacral neuromodulation implantation. OBSERVATIONS: MMP is a 16-year-old boy with early puberty as noteworthy medical history...
September 2016: Annals of Physical and Rehabilitation Medicine
Maria Matar, Laila Al-Shaar, Joyce Maalouf, Mona Nabulsi, Asma Arabi, Mahmoud Choucair, Hani Tamim, Ghada El-Hajj Fuleihan
BACKGROUND: Little is known about the changes in calciotropic hormones during puberty and their relationship to bone mass during this critical period for skeletal accretion. OBJECTIVES: Investigate changes in calciotropic hormones, IGF1, body composition and their associations with bone metabolism in adolescents. METHODS: Post-hoc analyses from data on 335 healthy school children, ages 10-17 years, with hypovitaminosis D, who participated in a vitamin D randomized controlled trial...
September 27, 2016: Journal of Clinical Endocrinology and Metabolism
Christine E Campbell, Beverly I Strassmann
BACKGROUND AND OBJECTIVES: Non-communicable diseases may reflect an evolutionary mismatch between our human ancestry and modern environments. To explore the mismatch hypothesis for Acne vulgaris, we studied the prevalence and severity of acne in Dogon adolescents in Mali, West Africa. METHODOLOGY: We graded the prevalence and severity of acne in 1182 Dogon adolescents aged 11-18 years from nine villages using facial photos taken as part of a prospective cohort study...
2016: Evolution, Medicine, and Public Health
Atsumi Tsuji-Hosokawa, Nozomi Matsuda, Kenji Kurosawa, Kenichi Kashimada, Tomohiro Morio
BACKGROUND: MECP2 duplication syndrome, which is caused by duplication of part of the Xq28 region containing the MECP2 gene, causes intellectual disability and mild dysmorphic features in males. To date, precocious puberty has not been reported as a clinical feature of MECP2 duplication syndrome. METHODS: A 6-year-old male with severe intellectual disability was referred because of growth acceleration and precocious puberty. We checked his hormonal profile and conducted imaging studies and an array comparative genomic hybridization analysis...
September 21, 2016: Hormone Research in Pædiatrics
Hirohito Shima, Shuichi Yatsuga, Akie Nakamura, Shinichiro Sano, Takako Sasaki, Noriyuki Katsumata, Erina Suzuki, Kenichiro Hata, Kazuhiko Nakabayashi, Yukihide Momozawa, Michiaki Kubo, Kohji Okamura, Shigeo Kure, Yoichi Matsubara, Tsutomu Ogata, Satoshi Narumi, Maki Fukami
NR0B1 is the causative gene for X-linked adrenal hypoplasia congenita, characterized by adrenal insufficiency, hypogonadotropic hypogonadism, and infertility. We identified an NR0B1 frameshift mutation in a boy with precocious puberty who had no signs of adrenal insufficiency. Blood examination revealed elevated testosterone levels and gonadotropin hyperresponses to gonadotropin releasing hormone (GnRH) stimulation, together with normal adrenal hormone levels. GnRH analog treatment partially ameliorated his clinical features...
2016: Sexual Development: Genetics, Molecular Biology, Evolution, Endocrinology, Embryology, and Pathology of Sex Determination and Differentiation
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