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Puberty precocis

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https://www.readbyqxmd.com/read/28525351/association-study-of-lin28b-in-girls-with-precocious-puberty
#1
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/28508600/endocrine-disorders-developing-after-surgical-intervention-of-craniopharyngioma-in-children
#2
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
#3
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/28504506/-a-very-rare-cause-of-peripheral-precocious-puberty-in-a-girl-ovarian-sex-cord-tumor-with-annular-tubules
#4
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
https://www.readbyqxmd.com/read/28500430/postnatal-feeding-with-high-fat-diet-induces-obesity-and-precocious-puberty-in-c57bl-6j-mouse-pups-a-novel-model-of-obesity-and-puberty
#5
Rahim Ullah, Yan Su, Yi Shen, Chunlu Li, Xiaoqin Xu, Jianwei Zhang, Ke Huang, Naveed Rauf, Yang He, Jingjing Cheng, Huaping Qin, Yu-Dong Zhou, Junfen Fu
Childhood obesity and obesity-related metabolic complications are induced by a high-fat postnatal diet. The lack of a suitable animal model, however, remains a considerable challenge in obesity studies. In the current study, we provided high-fat diet (HFD) to dams during lactation and to pups after weaning. We also developed a novel model of C57BL/6J mouse pups with HFD-induced postnatal obesity. Results showed that feeding with HFD induces fat deposition and obesity in pups. Furthermore, HFD more potently increased the body weight (BW) of male than female pups...
May 13, 2017: Frontiers of Medicine
https://www.readbyqxmd.com/read/28499829/characteristics-of-traditional-chinese-medicine-usage-in-children-with-precocious-puberty-a-nationwide-population-based-study
#6
Yi-Chun Lin, Tung-Ti Chang, Husan-Ju Chen, Chung-Hsing Wang, Mao-Feng Sun, Hung-Rong Yen
ETHNOPHARMACOLOGICAL RELEVANCE: Precocious puberty (PP) occurs in children with the early onset of pubertal development leading to physical and psychological problems. Current medical treatment is expensive and has its side effects. However, little is known about the utilization of traditional Chinese medicine (TCM) among patients with PP. To characterize the application of TCM among these patients, we conducted a nationwide population-based study. MATERIALS AND METHODS: We used the Taiwanese National Health Insurance Research Database (NHIRD), to perform a nationwide population-based study...
May 9, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28486374/premature-thelarche-and-the-pura-syndrome
#7
Joshua Rezkalla, Tiffany Von Wald, Keith A Hansen
BACKGROUND: Premature thelarche is a self-limited condition characterized by Tanner stage II-III breast development in girls younger than 8 years of age with no evidence of advancing puberty. Evaluation concentrates on excluding central or peripheral causes of precocious puberty. CASE: A girl aged 2 years 4 months with profound hypotonia and delayed developmental milestones presented with Tanner II breast development, elevated follicle-stimulating hormone levels, suppressed luteinizing hormone level, normal growth and skeletal development, and prepubertal uterine length and ovarian volume...
May 5, 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28481069/-laparoscopic-adrenalectomy-advantages-of-the-minimally-invasive-approach
#8
P Rodríguez Iglesias, J Gómez-Chacón Villalba, L Rodríguez Caraballo, P Ortolá Fortes, J Cortés Sáez, A Marco Macián, J J Vila Carbó
AIM: To describe our experience as a tertiary center on the use of laparoscopic adrenal surgery in children. MATERIAL AND METHODS: A descriptive, retrospective study of patients with pathologic adrenal masses undergoing laparoscopic adrenal surgery, between 2012 and 2015. Epidemiological variables, surgical technique, complications and follow-up were studied. RESULTS: Nine patients were studied with a median age of 62 months (5-184). In 3 patients (33...
October 10, 2016: Cirugía Pediátrica: Organo Oficial de la Sociedad Española de Cirugía Pediátrica
https://www.readbyqxmd.com/read/28458461/endocrine-status-of-patients-with-septo-optic-dysplasia-fourteen-japanese-cases
#9
Mikiko Koizumi, Shinobu Ida, Yasuko Shoji, Yuri Etani, Yoshikazu Hatsukawa, Nobuhiko Okamoto
A clinical diagnosis of septo-optic dysplasia (SOD) is made when two or more of the classical triad of optic nerve hypoplasia, pituitary hormone abnormalities or midline brain defects. To date, a clinical study of SOD, regarding its endocrinological features in particular, has not been undertaken in Japan. We retrospectively evaluated 14 SOD patients at our institution. Hormonal dysfunction was present in 78% of cases: ten cases presented combined hypopituitarism and one case presented precocious puberty. GHD and hypothyroidism were the most common endocrinopathies...
2017: Clinical Pediatric Endocrinology: Case Reports and Clinical Investigations: Official Journal of the Japanese Society for Pediatric Endocrinology
https://www.readbyqxmd.com/read/28443259/the-different-effects-of-gonadotropin-releasing-hormone-agonist-therapy-on-body-mass-index-and-growth-between-normal-weight-and-overweight-girls-with-central-precocious-puberty
#10
Won Jun Yang, Keun Hyeok Ko, Kon Hee Lee, Il Tae Hwang, Yeon Joung Oh
PURPOSE: The effects of gonadotropin-releasing hormone agonist (GnRHa) treatment on body mass index (BMI) are controversial in girls with central precocious puberty (CPP). We therefore evaluated auxological parameters during GnRHa therapy in patients with CPP, specifically focusing on changes in BMI. METHODS: Seventy-seven girls with idiopathic CPP who underwent GnRHa therapy were retrospectively recruited. We investigated BMI changes during the treatment period after stratifying them according to baseline BMI status as follows: normal (BMI percentile of <85th) and overweight groups (BMI percentile of ≥85th)...
March 2017: Annals of Pediatric Endocrinology & Metabolism
https://www.readbyqxmd.com/read/28443256/change-in-body-mass-index-and-insulin-resistance-after-1-year-treatment-with-gonadotropin-releasing-hormone-agonists-in-girls-with-central-precocious-puberty
#11
Jina Park, Jae Hyun Kim
PURPOSE: Gonadotropin-releasing hormone agonist (GnRHa) is used as a therapeutic agent for central precocious puberty (CPP); however, increased obesity may subsequently occur. This study compared body mass index (BMI) and insulin resistance during the first year of GnRHa treatment for CPP. METHODS: Patient group included 83 girls (aged 7.0-8.9 years) with developed breasts and a peak luteinizing hormone level of ≥5 IU/L after GnRH stimulation. Control group included 48 prepubertal girls...
March 2017: Annals of Pediatric Endocrinology & Metabolism
https://www.readbyqxmd.com/read/28442439/marshall-smith-syndrome-novel-pathogenic-variant-and-previously-unreported-associations-with-precocious-puberty-and-aortic-root-dilatation
#12
Anjali Aggarwal, Joanne Nguyen, Michelle Rivera-Davila, David Rodriguez-Buritica
Marshall-Smith Syndrome (MRSHSS) is a very rare genetic disorder characterized by failure to thrive and characteristic dysmorphic features associated with accelerated osseous maturation. We present a nine-year-old girl who was diagnosed with MRSHSS based on characteristic clinical features supported by the identification of a novel de novo pathogenic variant in the NFIX gene. The patient also presented with precocious puberty diagnosed at five years of age and had an abnormal GnRH stimulation test indicative of central precocious puberty...
April 24, 2017: European Journal of Medical Genetics
https://www.readbyqxmd.com/read/28441891/investigational-and-experimental-gnrh-analogs-and-associated-neurotransmitters
#13
Zeev Blumenfeld
The GnRH agonistic analogs enable for desensitizing the hypothalamo-pituitary-gonadal axis in malignant and benign conditions where minimizing the production of sex hormones, or blocking ovulation is necessary. The possible indications are prostate cancer, benign prostate hyperplasia, breast cancer, endometriosis, precocious puberty, uterine leiomyomata, assisted reproduction (ART)/in vitro fertilization (IVF), PCOS, minimizing the gonadotoxic effect of chemotherapy in young women, and possibly ovarian cancer...
May 4, 2017: Expert Opinion on Investigational Drugs
https://www.readbyqxmd.com/read/28429635/congenital-hypothalamic-hamartoblastoma-versus-hamartoma
#14
C Dunham, D McFadden, L Dahlgren, B Butler, S Hamilton, M McKinnon
Pallister Hall syndrome (PHS) is a rare malformative disorder that is due to truncating functional repressor mutations in GLI3. Since the seminal publication in 1980, hypothalamic tumors have been recognized to be a cardinal feature of PHS. In their original description of the neuropathologic features of PHS, Clarren et al. coined the term "hamartoblastoma" to characterize what they deemed to be a dual malformative and neoplastic mass of the hypothalamus. In subsequent published cases/series of PHS, the term "hamartoma" was often substituted for hamartoblastoma given what appeared to be a benign natural history of this lesion...
January 1, 2017: Pediatric and Developmental Pathology
https://www.readbyqxmd.com/read/28400459/investigating-the-relationship-between-precocious-puberty-and-obesity-a-cross-sectional-study-in-shanghai-china
#15
Chang Chen, Yunting Zhang, Wanqi Sun, Yao Chen, Yanrui Jiang, Yuanjin Song, Qinmin Lin, Lixia Zhu, Qi Zhu, Xiumin Wang, Shijian Liu, Fan Jiang
OBJECTIVES: Obesity is reported to be closely relevant to early sexual development but the relationship between sexual precocity and obesity or central obesity is still inconsistent, especially in boys. We aimed to investigate the relationship between precocious puberty and obesity as well as central obesity. DESIGN: A large population-based cross-sectional study using multistage, stratified cluster random sampling. SETTING: Data from the Shanghai Children's Health, Education and Lifestyle Evaluation (SCHEDULE) study in June 2014...
April 11, 2017: BMJ Open
https://www.readbyqxmd.com/read/28391271/metabolic-outcomes-bone-health-and-risk-of-polycystic-ovary-syndrome-in-girls-with-idiopathic-central-precocious-puberty-treated-with-gonadotropin-releasing-hormone-analogues
#16
Maria Felicia Faienza, Giacomina Brunetti, Angelo Acquafredda, Maurizio Delvecchio, Antonella Lonero, Alberto Gaeta, Paola Suavo Bulzis, Domenico Corica, Maria Rosa Velletri, Filippo De Luca, Luciano Cavallo, Malgorzata Wasniewska
BACKGROUND/AIMS: Gonadotropin-releasing hormone analogues (GnRHa) represent the gold standard treatment for central precocious puberty (CPP). We aimed to assess the effects of GnRHa treatment on metabolic outcomes, bone status, and polycystic ovary syndrome (PCOS) prevalence in young girls with idiopathic CPP (ICPP). METHODS: We enrolled 94 ICPP girls who were at least 2 years after menarche and had already attained adult height at the time of the study: 56 previously treated with depot triptorelin (3...
2017: Hormone Research in Pædiatrics
https://www.readbyqxmd.com/read/28388912/environmental-pollutants-a-possible-etiology-for-premature-ovarian-insufficiency-a-narrative-review-of-animal-and-human-data
#17
REVIEW
Pauline Vabre, Nicolas Gatimel, Jessika Moreau, Véronique Gayrard, Nicole Picard-Hagen, Jean Parinaud, Roger D Leandri
BACKGROUND: Because only 25% of cases of premature ovarian insufficiency (POI) have a known etiology, the aim of this review was to summarize the associations and mechanisms of the impact of the environment on this pathology. Eligible studies were selected from an electronic literature search from the PUBMED database from January 2000 to February 2016 and associated references in published studies. Search terms included ovary, follicle, oocyte, endocrine disruptor, environmental exposure, occupational exposure, environmental contaminant, pesticide, polyaromatic hydrocarbon, polychlorinated biphenyl PCB, phenol, bisphenol, flame retardant, phthalate, dioxin, phytoestrogen, tobacco, smoke, cigarette, cosmetic, xenobiotic...
April 7, 2017: Environmental Health: a Global Access Science Source
https://www.readbyqxmd.com/read/28364433/the-relationship-between-estrogen-and-the-decline-in-delta-power-during-adolescence
#18
Andrew W McHill, Elizabeth B Klerman, Bridgette Slater, Tairmae Kangarloo, Piotr W Mankowski, Natalie D Shaw
Study Objectives: During adolescence, there is a precipitous decrease in slow-wave sleep (SWS) and its spectral correlate, delta power, which may reflect cortical reorganization. The temporal association between the decrease in delta power and puberty suggests that sex steroids may initiate these changes. This association has not been previously investigated. Methods: To determine whether estrogen triggers the adolescent decline in delta power, we compared delta power in 14 girls with central precocious puberty (CPP) and 6 age-matched, prepubertal controls...
March 1, 2017: Sleep
https://www.readbyqxmd.com/read/28359061/intrafamilial-phenotypic-variability-and-consequences-of-non-compliance-with-treatment-in-congenital-adrenal-hyperplasia-and-congenital-hypothyroidism-within-a-single-family%C3%A2
#19
Nicola Improda, Caroline Ponmani, Nadia Schoenmakers, Senthil Senniappan, Abigail Atterbury, Angela Barnicoat, Krishna Chatterjee, Mehul T Dattani
BACKGROUND: Coexistence of congenital adrenal hyperplasia (CAH) and congenital hypothyroidism (CH) due to TG mutation in the same non-consanguineous family is rare. CASE SERIES: We report 4 siblings born to unrelated parents, the father being an asymptomatic carrier of homozygous p.V281L and heterozygous p.I172N CYP21A2 mutations. Sibling 1 had salt-wasting CAH (CYP21A2 genotype Intron 2 splice/p.I172N and p.V281L). She also had CH (TG genotype p.R296/ p.T1416Rfs*30) and learning difficulties...
March 30, 2017: Hormone Research in Pædiatrics
https://www.readbyqxmd.com/read/28348072/the-follicle-stimulating-hormone-fsh-and-luteinizing-hormone-lh-response-to-a-gonadotropin-releasing-hormone-analogue-test-in-healthy-prepubertal-girls-aged-10-months-to-6-years
#20
Esben Thyssen Vestergaard, Mia Elbek Schjørring, Konstantinos Kamperis, Karin Kastberg Petersen, Søren Rittig, Anders Juul, Kurt Kritstensen, Niels Birkebæk
OBJECTIVE: Premature thelarche and precocious puberty are frequently diagnosed in girls even below 6 years of age and may be difficult to differentiate in the early stages. A GnRH test is often included in the diagnostic work-up, although interpretation of the GnRH test in girls below 6 years of age is challenging, as no reference interval exists for this age group. The objective is to determine the normal FSH and LH response to a GnRH test in healthy prepubertal girls below 6 years of age...
March 27, 2017: European Journal of Endocrinology
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