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https://www.readbyqxmd.com/read/28528174/prenatal-exposure-to-di-n-butyl-phthalate-disrupts-the-development-of-adult-leydig-cells-in-male-rats-during-puberty
#1
Xiaomin Chen, Linxi Li, Huitao Li, Hongguo Guan, Yaoyao Dong, Xiaoheng Li, Qiufan Wang, Qingquan Lian, Guoxin Hu, Ren-Shan Ge
Fetal exposure to di-n-butyl phthalate (DBP) causes the adult disease such as lower testosterone production and infertility. However, the mechanism is still unknown. The objective of the present study is to determine how DBP affects the involution of fetal Leydig cells during the neonatal period and how this event causes the delayed development of the adult Leydig cells during puberty. The pregnant Sprague Dawley dams were randomly divided into 3 groups and were gavaged with 0 (corn oil, the vehicle control), 100 or 500mg/kg DBP from gestational day 12 (G12) to G21...
May 17, 2017: Toxicology
https://www.readbyqxmd.com/read/28525352/evaluation-of-endocrine-and-metabolic-dysfunctions-after-hematopoietic-stem-cell-transplantation-in-children-a-study-from-turkey
#2
Dilek Gurlek Gokcebay, Fatih Azik, Cengiz Bayram, Arzu Yazal Erdem, Ali Fettah, Pamir Isik, Nese Yarali, Fatma Demirel, Bahattin Tunc, Namik Ozbek
BACKGROUND: Endocrine organs are highly susceptible to effects of high-dose chemotherapy. The objective of the study was to evaluate endocrine and metabolic complications after hematopoietic stem cell transplantation (HSCT) in children. METHODS: The patients who underwent HSCT in our center from April 2010 to October 2014 with at least 1 year follow-up were analyzed retrospectively. RESULTS: One-hundred children (M/F:59/41; mean age 8.9±4...
May 18, 2017: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/28525351/association-study-of-lin28b-in-girls-with-precocious-puberty
#3
Yen-Chun Chen, Li-Min Chen, Hung-Hsun Lin, Bai-Hsiun Chen, Mei-Chyn Chao, Hui-Pin Hsiao
BACKGROUND: Central precocious puberty (CPP), predominant in girls, is defined by early development of secondary sexual characteristics driven by the early secretion of hypothalamic gonadotropin releasing hormone (GnRH) and subsequent gonadotropin. Recent studies have shown variation in the LIN28B gene is associated with timing of puberty, but only a few have show it to be associated with CPP. METHODS: This study attempted to investigate the relation between single-nucleotide polymorphisms (SNPs) in LIN28B and girls with precocious puberty...
May 18, 2017: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/28525319/preparation-for-sexual-and-reproductive-self-care-in-iranian-adolescent-girls-a-qualitative-study
#4
Zainab Alimoradi, Nourossadat Kariman, Fazlollah Ahmadi, Masoumeh Simbar
Background Adolescence is one of the most important stages in every individual's life. Pubertal changes and acquiring reproduction capability require adolescents to perform special health care processes. Also the possibility of involvement in high-risk sexual behaviors endangers adolescent girls' sexual and reproductive health. Objective Increase and deepen the understanding and knowledge of the factors affecting Iranian adolescent girls' readiness to take care of their sexual and reproductive health. Materials and methods The present qualitative study was conducted using conventional content analysis method...
May 17, 2017: International Journal of Adolescent Medicine and Health
https://www.readbyqxmd.com/read/28521848/impacts-of-stocking-density-on-development-and-puberty-attainment-of-replacement-beef-heifers
#5
K M Schubach, R F Cooke, A P Brandão, K D Lippolis, L G T Silva, R S Marques, D W Bohnert
In all, 60 Angus×Hereford heifers were ranked by age and BW (210±2 days and 220±2 kg) on day 0, and assigned to: (a) one of three drylot pens (10×14 m pens; 10 heifers/pen) resulting in a stocking density of 14 m2/heifer (HIDENS; n=3), or (b) one of three pastures (25 ha pastures; 10 heifers/pasture), resulting in a stocking density of 25 000 m2/heifer (LOWDENS; n=3). Pastures were harvested for hay before the beginning of this experiment, and negligible forage was available for grazing to LOWDENS heifers during the experiment (days 0 to 182)...
May 19, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/28521272/impact-of-prematurity-on-exercise-capacity-and-agility-of-children-and-youth-aged-8-to-18
#6
Tatjana Robič Pikel, Gregor Starc, Janko Strel, Marjeta Kovač, Janez Babnik, Petra Golja
BACKGROUND: Preterm (PT) birth and low birth mass (LBW) can impair growth and development of children and may therefore affect their physical performance up to adulthood. AIMS: Our aim was to evaluate long-term consequences of prematurity, especially (an)aerobic exercise capacity and agility up to adulthood, by comparing premature and full-term (FT) individuals. STUDY DESIGN, SUBJECTS: From 474 subjects born in 1987, who were enrolled into a longitudinal study, 396 (178 PT and 218 FT (with 127 of them LBW)) were followed-up into their early adulthood...
May 15, 2017: Early Human Development
https://www.readbyqxmd.com/read/28520646/relationship-between-pubertal-timing-and-chronic-nonspecific-pain-in-adolescent-girls-the-young-hunt3-study-2006-2008
#7
Barbro Kløven, Gry B Hoftun, Pål R Romundstad, Marite Rygg
The aim of this study was to examine a possible relationship between early puberty and chronic non-specific pain in 13-18 years old girls. All adolescents in Nord-Trøndelag County, Norway, were invited to participate in the Young-HUNT3 study (2006-2008). Of the invited girls 81% answered the questionnaire and of these 3982 were 13-18 years. Menarche and perceived physical maturation were used as exposure measures. Early menarche was defined as <12 years, normal menarche as ≥12 and <14 years, and late menarche as ≥14 years...
May 16, 2017: Pain
https://www.readbyqxmd.com/read/28516749/international-comparison-of-adult-height-in-children-with-growth-hormone-deficiency-and-limitations-of-growth-hormone-treatment-in-japan
#8
Toshiaki Tanaka
The approved therapeutic dose of growth hormone (GH) for growth hormone deficiency (GHD) varies depending on the country. Japan has the lowest therapeutic dose globally, with a single dose of 0.175 mg/kg/week. GH treatment for GHD is considered as a replacement therapy and in fact, a dose of 0.175 mg/kg/week is slightly higher than GH secretion in prepubertal healthy children but nearly the same as that of pubertal children. Although the same growth rate as that of healthy children is expected in response to replacement therapy, the catch-up growth observed for the first 1 to 2 years of GH treatment was misinterpreted as an effect of the GH replacement therapy...
March 2017: Pediatric Endocrinology Reviews: PER
https://www.readbyqxmd.com/read/28514243/celiac-disease-symptom-resolution-effectiveness-of-the-gluten-free-diet
#9
Naire Sansotta, Stefano Guandalini, Karine Amirikian, Hilary Jericho
OBJECTIVE: To evaluate the efficacy of the gluten free diet (GFD) on gastrointestinal and extra-intestinal symptom resolution and identify predictors for persistence of symptoms in all celiac patients at the University of Chicago. METHODS: We conducted a retrospective chart review from 2002 to 2015. Gastrointestinal (GI) symptoms included: abdominal pain, bloating, constipation, diarrhea, failure to thrive/weight loss, nausea, reflux and vomiting. Extra-intestinal (EI) symptoms included: abnormal liver enzymes, arthralgia/arthritis, dermatitis herpetiformis, alopecia, fatigue, headache, anemia, stomatitis, myalgia, psychiatric disorders, rashes, seizures, neuropathy, short stature, delayed puberty, osteoporosis, and infertility...
May 16, 2017: Journal of Pediatric Gastroenterology and Nutrition
https://www.readbyqxmd.com/read/28513071/juvenile-idiopathic-arthritis-in-multiplex-families-longitudinal-follow-up
#10
Munira Al Marri, Alya Qari, Sulaiman M Al-Mayouf
OBJECTIVE: To describe the physical, social, educational and employment status and clinical outcomes of patients with juvenile idiopathic arthritis (JIA) from multiplex families. METHODS: All familial JIA patients were treated and had regular follow-up between 1990 and 2015 at King Faisal Specialist Hospital and Research Center (KFSH-RC), Riyadh, were included. Demographic data, disease duration, active arthritis and articular and extra-articular damage at last follow-up visit were reviewed...
May 16, 2017: International Journal of Rheumatic Diseases
https://www.readbyqxmd.com/read/28511413/knowledge-attitude-and-perception-of-sex-education-among-school-going-adolescents-in-ambala-district-haryana-india-a-cross-sectional-study
#11
Randhir Kumar, Anmol Goyal, Parmal Singh, Anu Bhardwaj, Anshu Mittal, Sachin Singh Yadav
INTRODUCTION: Adolescence is a highly dynamic period characterised by rapid growth and development. Adolescents have limited knowledge about sexual and reproduction health, and know little about the natural processes of puberty, sexual health, pregnancy or reproduction. Sex education should be an integral part of the learning process beginning in childhood and continuing into adult life, because it is lifelong process. AIM: This study was carried out to identify the knowledge and attitude of imparting sex education in school going adolescents in rural and urban area of Ambala district...
March 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28511077/clinical-and-laboratory-parameters-predicting-a-requirement-for-the-reevaluation-of-growth-hormone-status-during-growth-hormone-treatment-retesting-early-in-the-course-of-gh-treatment
#12
Dogus Vuralli, E Nazli Gonc, Z Alev Ozon, Ayfer Alikasifoglu, Nurgun Kandemir
OBJECTIVE: We aimed to define the predictive criteria, in the form of specific clinical, hormonal and radiological parameters, for children with growth hormone deficiency (GHD) who may benefit from the reevaluation of GH status early in the course of growth hormone (GH) treatment. DESIGN AND METHODS: Two hundred sixty-five children with growth hormone deficiency were retested by GH stimulation at the end of the first year of GH treatment. The initial clinical and laboratory characteristics of those with a normal (GH≥10ng/ml) response and those with a subnormal (GH<10ng/ml) response were compared to predict a normal GH status during reassessment...
May 10, 2017: Growth Hormone & IGF Research
https://www.readbyqxmd.com/read/28509670/pediatric-nasal-surgery-timing-and-technique
#13
Celeste C Gary
PURPOSE OF REVIEW: Timing of pediatric nasal surgery has always been a controversial topic. Concern over disrupting growing parts of the face and causing permanent facial deformity has led to a primarily conservative approach. Many surgeons feel that it is prudent to wait until the patient has completed nasal growth after puberty to pursue nasal surgery. RECENT FINDINGS: Recently, this attitude has been challenged with evidence that not only is nasal surgery in the pediatric age group not a detriment to facial growth, but failure to correct significant nasal deformity may actually cause dysmorphic facial growth secondary to obligate mouth breathing...
May 13, 2017: Current Opinion in Otolaryngology & Head and Neck Surgery
https://www.readbyqxmd.com/read/28508615/a-multidisciplinary-approach-to-puberty-and-fertility-in-girls-with-turner-syndrome
#14
Johanna Viau Colindres, Krista J Childress, Marni Axelrad, Laurence B McCullough, Yunru Shao, Charles Macias, Jennifer Loveless, Sheila K Gunn, Jennifer Bercaw-Pratt, Reid Sutton, Lefkothea P Karaviti, Jennifer E Dietrich
Women with Turner Syndrome (TS) have a variety of medical needs throughout their lives; however, the peripubertal years are particularly challenging. From a medical perspective, the burden of care increases during this time due to growth optimization strategies, frequent health screenings, and puberty induction. Psychologically, girls begin to comprehend the long-term implications of the condition, including their diminished fertility potential. Unfortunately, clear guidelines for how to best approach this stage have not been established...
September 2016: Pediatric Endocrinology Reviews: PER
https://www.readbyqxmd.com/read/28508614/methods-for-rating-sexual-development-in-girls
#15
Vincenzo De Sanctis, Ihab Zaki Elhakim, Ashraf T Soliman, Heba Elsedfy, Rania Elalaily, Giuseppe Millimaggi
Sexual maturity rating (SMR) is important in population studies and in clinical care. Pubertal staging allows doctors to assess the maturation of adolescents to correlate several pubertal phenomena such as age at menarche, growth spurt and final height, to advise and manage patients appropriately and to have sensitive "sensors" of the effects of environmental exposure on human populations. The commonly used markers of the timing of female puberty are thelarche and menarche. Appearance of the breast bud is the first indicator of puberty onset in 90% of girls...
September 2016: Pediatric Endocrinology Reviews: PER
https://www.readbyqxmd.com/read/28508600/endocrine-disorders-developing-after-surgical-intervention-of-craniopharyngioma-in-children
#16
Kyrillus S Shohdy, Wegdan Rashad
Craniopharyngiomas, albeit their benign nature, can cause severe damage to visual, hypothalamic, endocrine and neurologic functions which make their total resection an inevitable approach to save the patient's life. However, significant therapy-related long term complications make those traditional treatment options debatable and hazardous. This review will focus on the various complications that affect the childrens' quality of life considerably such as, diabetes insipidus, precocious puberty and hypothalamic obesity...
March 2017: Pediatric Endocrinology Reviews: PER
https://www.readbyqxmd.com/read/28506340/-endocrine-and-metabolic-features-of-female-children-with-prader-willi-syndrome-an-analysis-of-4-cases
#17
Mo-Ling Wu, Juan Li, Yu Ding, Yao Chen, Guo-Ying Chang, Xiu-Min Wang, Jian Wang, Yi-Ping Shen
This article reports the clinical features and endocrine and metabolic features of 4 children with Prader-Willi syndrome (PWS). All the patients were female and aged 6-12 years at diagnosis. All of them had clinical manifestations of obesity, unusual facies, developmental retardation, and intellectual disability. Genetic detection showed that 2 patients had paternal deletion of the 15q11.2-q13 region, one patient had maternal autodiploid in the 15q11.2-q13 region, and one patient had no abnormality in the 15q11...
May 2017: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/28505621/gnrha-treatment-of-cryptorchid-boys-affects-genes-involved-in-hormonal-control-of-the-hpg-axis-and-fertility
#18
Faruk Hadziselimovic, Katharina Gegenschatz-Schmid, Gilvydas Verkauskas, Philippe Demougin, Vytautas Bilius, Darius Dasevicius, Michael B Stadler
The gonadotropin-releasing hormone agonist (GnRHa; Buserelin) rescues fertility during adulthood in the majority of high infertility risk cryptorchid boys presenting with defective mini-puberty. However, the molecular events governing this effect are not understood. We report the outcome of an RNA profiling analysis of testicular biopsies from 4 operated patients who were treated with GnRHa for 6 months versus 3 operated controls who were not treated. GnRHa induces a significant transcriptional response, including protein-coding genes involved in pituitary development, the hypothalamic-pituitary-gonadal axis, and testosterone synthesis...
May 16, 2017: Sexual Development: Genetics, Molecular Biology, Evolution, Endocrinology, Embryology, and Pathology of Sex Determination and Differentiation
https://www.readbyqxmd.com/read/28504511/-intrauterine-growth-restriction-endocrinological-perspective-update-of-the-2007-version-arch-argent-pediatr-2007-105-1-71-73
#19
(no author information available yet)
Most children born with low weight or intrauterine growth restriction develop catch-up growth that allows them to reach a final height according to their genetic target height. However, in about 15% of children this growth is insufficient. In both, children who have adequate compensatory growth and therefore normal height and children who remain low in childhood, it is necessary to take into account that if puberty starts early, the final height could be compromised. Timely and appropriate intervention could improve it...
June 1, 2017: Archivos Argentinos de Pediatría
https://www.readbyqxmd.com/read/28504506/-a-very-rare-cause-of-peripheral-precocious-puberty-in-a-girl-ovarian-sex-cord-tumor-with-annular-tubules
#20
Julia Sánchez Zahonero, José A Ruiz Domínguez, Sandra Sánchez Zahonero, M José López García
Sex cord tumor with annular tubules is an extremely uncommon gonadal stromal neoplasm. It represents 0.05-0.6% of all ovarian tumors, according to series. An unusual case is presented in a 6-year-old girl, detected as a result of an isosexual peripheral precocious puberty. The highlight of this case is that no mass attached to the ovary was found, but only a gonadal asymmetry without radiological signs of malignancy. After confirming the presence of tumoral cells by intraoperative biopsy, unilateral salpingo-oophorectomy with ipsilateral para-aortic and pelvic lymphadenectomy was performed...
June 1, 2017: Archivos Argentinos de Pediatría
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