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Central precocious puberty

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https://www.readbyqxmd.com/read/28167925/commentary-cognitive-emotional-and-psychosocial-functioning-of-girls-treated-with-pharmacological-puberty-blockage-for-idiopathic-central-precocious-puberty
#1
COMMENT
https://www.readbyqxmd.com/read/28167139/evaluation-treatment-and-follow-up-results-of-ovarian-cysts-in-childhood-and-adolescence-a-multicenter-retrospective-study-of-100-patients
#2
Banu Kucukemre Aydin, Nurcin Saka, Firdevs Bas, Yasin Yilmaz, Belma Haliloglu, Tulay Guran, Serap Turan, Abdullah Bereket, Gul Yesiltepe Mutlu, Filiz Cizmecioglu, Sukru Hatun, Digdem Bezen, Filiz Tutunculer, Nurcan Cebeci, Pinar Isguven, Nihal Memioglu, Oya Ercan, Sukran Poyrazoglu, Rüveyde Bundak, Feyza Darendeliler
STUDY OBJECTIVE: To investigate the characteristics of children with ovarian cysts at presentation and during follow up, and evaluate treatment strategies. DESIGN: Retrospective Study SETTING: Eight Pediatric Endocrinology Clinics, Turkey PARTICIPANTS: A total of 100 children and adolescents with ovarian cysts. INTERVENTIONS: Patient data collected via retrospective chart review. Patients were stratified by age into 4 groups (newborns, 1-12 months, 1-8 years, and 8-18 years)...
February 3, 2017: Journal of Pediatric and Adolescent Gynecology
https://www.readbyqxmd.com/read/28164078/an-11-month-old-girl-with-central-precocious-puberty-caused-by-hypothalamic-hamartoma
#3
Da Young Yoon, Jae Hyun Kim
Central precocious puberty (CPP) is caused by premature activation of the hypothalamic-gonadal axis, and must be treated adequately. In particular, CPP that occurs at a relatively young age or in boys is likely to be caused by an organic lesion. Hypothalamic hamartoma (HH) is the most common organic cause of CPP. The present case report describes an 11-month-old female infant who presented with vaginal bleeding and rapidly progressive secondary sex characteristics from the age of 6 months. She was diagnosed with CPP following the detection of HH via magnetic resonance imaging...
December 2016: Annals of Pediatric Endocrinology & Metabolism
https://www.readbyqxmd.com/read/28164072/leptin-and-adiponectin-levels-in-girls-with-central-precocious-puberty-before-and-during-gnrh-agonist-treatment
#4
Jae Won Yoo, Chun Woo Song, Han Hyuk Lim
PURPOSE: The effects of gonadotropin-releasing hormone agonist (GnRHa) treatment on the energy metabolism in girls with central precocious puberty (CPP) are controversial. We focused the changes and related factors of serum levels of leptin and adiponectin in girls with CPP before and during GnRHa treatment. METHODS: Thirty girls with idiopathic CPP were enrolled in the study. Their auxological data and fasting blood were collected at the baseline and after six months of GnRHa treatment...
December 2016: Annals of Pediatric Endocrinology & Metabolism
https://www.readbyqxmd.com/read/28161677/serum-anti-m%C3%A3-llerian-hormone-and-inhibin-b-as-potential-markers-for-progressive-central-precocious-puberty-in-girls
#5
Ting Chen, Haiying Wu, Rongrong Xie, Fengyun Wang, Xiuli Chen, Hui Sun, Linqi Chen
STUDY OBJECTIVE: To investigate the potential of serum anti-Müllerian hormone (AMH) and inhibin B (INHB) levels as markers for pubertal progression rate in girls with central precocious puberty (CPP). DESIGN, SETTING, AND PARTICIPANTS, INTERWENTIONS, AND MAIN OUTCOME MEASURES: A total of 148 girls were enrolled, including 65 girls with premature thelarche (PT) and 83 girls with CPP, grouped based on the results of Gonadotropin-releasing hormone (GnRH) stimulation tests. Girls with CPP underwent a six-month follow-up, and were further divided into two subgroups: progressive CPP (P-CPP) group (n=55) and slowly progressive CPP (SP-CPP) group (n=28)...
February 1, 2017: Journal of Pediatric and Adolescent Gynecology
https://www.readbyqxmd.com/read/28156152/relationship-between-serum-leptin-levels-and-weight-gain-in-girls-with-central-precocious-puberty-at-a-1year-follow-up
#6
Jessie N Zurita-Cruz, Miguel A Villasís-Keever, Leticia Damasio-Santana, Leticia Manuel-Apolinar, Elisa Nishimura-Meguro, Aleida de J Rivera-Hernández, Eulalia Garrido-Magaña, Alejandro Gutierrez-Gonzalez, Adriana Poblano-Alcalá
BACKGROUND AND OBJECTIVES: Patients with central precocious puberty (CPP) may have increased serum leptin levels; however, it is not well known whether this increase differs between patients with and without obesity. Our objectives were to describe the changes in serum leptin in girls with CPP in the first 12 months after diagnosis based on BMI and to explore whether serum leptin level at CPP diagnosis is related to BMI z-score (BMIz) after a one-year follow-up. DESIGN: A prospective cohort study was performed...
February 3, 2017: Endocrine Practice
https://www.readbyqxmd.com/read/28145651/serum-anti-m%C3%A3-llerian-hormone-levels-in-precocious-puberty-girls-according-to-stage-of-gnrh-agonist-treatment
#7
Hyo Kyoung Nam, Hye Ryun Kim, Young Jun Rhie, Kee Hyoung Lee
Few studies have investigated the long-term effects of gonadotropin-releasing hormone (GnRH) agonist treatment on the reproductive function of central precocious puberty (CPP) girls. In this cross-sectional study, we assessed the ovarian function by analyzing the serum anti-Müllerian hormone (AMH) levels of CPP girls. Our study included 505 CPP girls subdivided into 5 groups according to the GnRH agonist treatment stage: group A (before treatment, n = 98), group B (3 months after initiation, n = 103), group C (12 months after initiation, n = 101), group D (24 months after initiation, n = 101), and group E (6 months after discontinuation, n = 102)...
March 2017: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/28114141/lung-function-in-women-with-idiopathic-central-precocious-puberty-a-pilot-study%C3%A2
#8
Virginia Murri, Franco Antoniazzi, Michele Piazza, Paolo Cavarzere, Claudia Banzato, Attilio Boner, Rossella Gaudino
BACKGROUND: Studies have reported that women with early menarche (≤10 years) have lower lung function. AIM: To investigate lung function in women with a history of idio pathic central precocious puberty (ICPP) treated during childhood with gonadotropin-releasing hormone agonist (GnRHa). METHODS: ICPP women (n = 23) were compared with healthy age-matched controls (n = 23). Subjects were clinically evaluated by means of a questionnaire, baseline and post-β<Sub>2</Sub> agonist spirometry, impulse oscillometry (a measure of airway resistance), and measurement of fractional exhaled nitric oxide (FeNO)...
January 23, 2017: Hormone Research in Pædiatrics
https://www.readbyqxmd.com/read/28091641/effects-of-pomegranate-extract-in-supplementing-gonadotropin-releasing-hormone-therapy-on-idiopathic-central-precocious-puberty-in-chinese-girls-a-randomized-placebo-controlled-double-blind-clinical-trial
#9
Jinsheng Liu, Jiulai Tang
Central precocious puberty (CPP) without organic abnormality is called idiopathic CPP (ICPP). The objective of this trial was to evaluate the effects of pomegranate extract in supplementing gonadotropin-releasing hormone (GnRH) analog therapy on ICPP-affected girls in the Chinese population. 286 girls, diagnosed with ICPP were initially enrolled into this trial, and among them 225 eligible patients were randomized to receive a combinational GnRH analog treatment supplemented with either a placebo or pomegranate extract on a daily basis for a period of 3 months...
January 16, 2017: Food & Function
https://www.readbyqxmd.com/read/28049241/predictive-value-of-dental-maturity-for-a-positive-gonadotropin-releasing-hormone-stimulation-test-result-in-girls-with-precocious-puberty
#10
Jee Seon Baik, Jin Woo Choi, Su Jin Kim, Ji Hyun Kim, Sollip Kim, Jae Hyun Kim
Dental maturity is associated with skeletal maturity, which is advanced in girls with central precocious puberty (CPP). We investigated the performance of dental maturity as a screening method for CPP using mandibular second premolar and molar calcification stages, assessed the associated anthropometric and laboratory factors, and evaluated pubertal response predictors using the gonadotropin-releasing hormone stimulation test (GnRHST) in prepubertal and pubertal girls. A prospective case-control study was conducted in girls, aged 7...
February 2017: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/28008860/basal-serum-neurokinin-b-level-can-be-used-to-differentiate-idiopathic-central-precocious-puberty-from-premature-thelarche-in-girls
#11
Mesut Parlak, Doğa Türkkahraman, Hamit Yaşar Ellidağ, Gamze Çelmeli, Ayşe Eda Parlak, Necat Yılmaz
OBJECTIVE: The aim of the study is to investigate the diagnostic role of kisspeptin and neurokinin B in idiopathic central precocious puberty (ICPP) and premature thelarche (PT). METHODS: The girls who presented with early breast development before the age of 8 years were evaluated. Basal and stimulated FSH, LH levels and basal neurokinin B and kisspeptin levels were measured. Patients who had peak LH > 5mIU/mL, and a bone age (BA) /chronological age (CA) ratio >1...
December 23, 2016: Journal of Clinical Research in Pediatric Endocrinology
https://www.readbyqxmd.com/read/27987429/a-reduction-in-long-term-spatial-memory-persists-after-discontinuation-of-peripubertal-gnrh-agonist-treatment-in-sheep
#12
D Hough, M Bellingham, I R Haraldsen, M McLaughlin, J E Robinson, A K Solbakk, N P Evans
Chronic gonadotropin-releasing hormone agonist (GnRHa) administration is used where suppression of hypothalamic-pituitary-gonadal axis activity is beneficial, such as steroid-dependent cancers, early onset gender dysphoria, central precocious puberty and as a reversible contraceptive in veterinary medicine. GnRH receptors, however, are expressed outside the reproductive axis, e.g. brain areas such as the hippocampus which is crucial for learning and memory processes. Previous work, using an ovine model, has demonstrated that long-term spatial memory is reduced in adult rams (45 weeks of age), following peripubertal blockade of GnRH signaling (GnRHa: goserelin acetate), and this was independent of the associated loss of gonadal steroid signaling...
November 30, 2016: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/27982202/a-boy-with-prader-willi-syndrome-unmasking-precocious-puberty-during-growth-hormone-replacement-therapy
#13
Natasha G Ludwig, Rafael F Radaeli, Mariana M X Silva, Camila M Romero, Alexandre J F Carrilho, Danielle Bessa, Delanie B Macedo, Maria L Oliveira, Ana Claudia Latronico, Tânia L Mazzuco
Prader-Willi syndrome (PWS) is a genetic disorder frequently characterized by obesity, growth hormone deficiency, genital abnormalities, and hypogonadotropic hypogonadism. Incomplete or delayed pubertal development as well as premature adrenarche are usually found in PWS, whereas central precocious puberty (CPP) is very rare. This study aimed to report the clinical and biochemical follow-up of a PWS boy with CPP and to discuss the management of pubertal growth. By the age of 6, he had obesity, short stature, and many clinical criteria of PWS diagnosis, which was confirmed by DNA methylation test...
November 2016: Archives of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/27941749/central-precocious-puberty-a-case-report
#14
T Haq, A M Taib, S Ikhtaire
Precocious puberty in a male child is uncommon. Moreover, a predominantly luteinising hormone secreting pituitary tumor is rare. We report a case of predominantly luteinising hormone secreting pituitary adenoma causing precocious puberty in a three year old boy. A thorough systematic investigation including serum gonadotropins and imaging should be done to search for an underlying cause, even in the absence of pressure symptoms. Surgery with long term follow up is the recommended treatment for functioning gonadotrophin tumors...
October 2016: Mymensingh Medical Journal: MMJ
https://www.readbyqxmd.com/read/27931036/clinical-exome-sequencing-reveals-mkrn3-pathogenic-variants-in-familial-and-nonfamilial-idiopathic-central-precocious-puberty
#15
Nelmar Valentina Ortiz-Cabrera, Rosa Riveiro-Álvarez, Miguel Ángel López-Martínez, Pilar Pérez-Segura, Isabel Aragón-Gómez, María José Trujillo-Tiebas, Leandro Soriano-Guillén
BACKGROUND/AIMS: Idiopathic central precocious puberty (ICPP) is the premature activation of the hypothalamic-pituitary-gonadal axis in the absence of organic disease. Up to now, just gain-of-function mutations of KISS1/KISS1R and loss-of-function mutations of the maternally imprinted gene MKRN3 are the known genetic causes of ICPP. Our intention is to evaluate variants present in genes related to the pubertal onset pathway that could act as disease-causing or predisposing variants. METHODS: We studied the clinical exome of 20 patients diagnosed with ICPP using the Illumina platform...
December 9, 2016: Hormone Research in Pædiatrics
https://www.readbyqxmd.com/read/27914139/genetic-variations-of-the-kiss1r-gene-in-korean-girls-with-central-precocious-puberty
#16
Yeon Joung Oh, Young Jun Rhie, Hyo Kyoung Nam, Hye Ryun Kim, Kee Hyoung Lee
The timing of puberty onset varies greatly among individuals, and much of this variation is modulated by genetic factors. This study aimed to identify the kisspeptin receptor (KISS1R) gene variations and to investigate the associations between these variations and central precocious puberty (CPP). Korean girls with CPP (n = 194) and their healthy controls (n = 99) were included in this study. The entire coding region and the exon-intron boundaries (exon 1 through 5) of the KISS1R gene were directly sequenced...
January 2017: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/27897024/-peripheral-precocious-puberty
#17
J Zvonařová Skalická, R Pilka
OBJECTIVE: To summarize literature data on peripheral precocious puberty. DESIGN: A literature review. SETTING: Středomoravská nemocniční a.s., hospital Šternberk, Department of Obstetrics and Gynaecology, University Hospital, Medical Faculty, Palacky University, Olomouc. METHODS AND RESULTS: We searched in PubMed using the key words stated below according to date and published since 1980.Peripheral precocious puberty occurs in girls with the frequency 1:400-1000...
2016: Ceská Gynekologie
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
#18
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/27798941/two-frameshift-mutations-in-mkrn3-in-turkish-patients-with-familial-central-precocious-puberty
#19
Enver Simsek, Meliha Demiral, Serdar Ceylaner, Birgul Kırel
BACKGROUND: Little is known about the genetic causes responsible for idiopathic central precocious puberty (iCPP). More recently, described loss-of-function mutations in the makorin ring finger protein 3 (MKRN3) gene have been demonstrated to be involved in the pathogenesis of familial iCPP. AIM: The objective of this study was to investigate the potential role of MKRN3 in patients with familial iCPP. METHODS: We investigated potential sequence variations in the maternal imprinted MKRN3 gene using Next Generation Sequencing (NGS) analysis in 31 participants from 2 families (6 participants were diagnosed with familial iCPP on the basis of clinical and hormonal findings)...
November 1, 2016: Hormone Research in Pædiatrics
https://www.readbyqxmd.com/read/27771678/central-or-peripheral-precocious-puberty-diagnostic-difficulties
#20
María Eugenia López Valverde, Ana Villamañán Montero, Aránzazu Garza Espí, Antonio de Arriba Muñoz
BACKGROUND: An underlying identifiable organic cause is present in up to 50% cases of central precocious puberty in male patients. CASE CHARACTERISTICS: A 7-years-8-months-old presented with delayed puberal development. Analytical examinations showed suppressed basal and stimulated levels of testosterone, LH and FSH. Abdominal ultrasound and contrast cranial magnetic resonance results were initially negative. OUTCOME: Germinoma was found on cranial computer tomography...
October 8, 2016: Indian Pediatrics
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