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Premature thelarche

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https://www.readbyqxmd.com/read/29625387/urinary-phthalate-metabolite-concentrations-in-girls-with-premature-thelarche
#1
Erdem Durmaz, Pinar Erkekoglu, Ali Asci, Sema Akçurin, İffet Bircan, Belma Kocer-Gumusel
In girls, breast development before eight years of age is called "premature thelarche (PT)". There are few studies in literature that show the interaction between PT and phthalate exposure. The aim of this study was to determine the urinary levels of di-(2-ethylhexyl) phthalate (DEHP) metabolites and other phthalate metabolites in girls with PT. PT group consisted of 29 newly diagnosed subjects. Control group comprised of healthy age-matched girls (n = 25). Urinary phthalate metabolite concentrations were measured by liquid chromatography/tandem mass spectroscopy (LC-MS/MS)...
March 17, 2018: Environmental Toxicology and Pharmacology
https://www.readbyqxmd.com/read/29517679/observational-study-pelvic-ultrasound-a-useful-tool-in-the-diagnosis-and-differentiation-of-precocious-puberty-in-chinese-girls
#2
Xiaoduo Wen, Denggui Wen, Hui Zhang, Huifeng Zhang, Yi Yang
Rapid and noninvasive diagnosis on and differentiation between normal, central precocious puberty (CPP), and isolated precocious puberty (IPP) is imperative before a decision can be made with gonadotropin-releasing hormone (GnRH) agonist treatment. Our study aims to evaluate such a role by pelvic ultrasound.We consecutively enrolled 84 cases of IPP (59 with premature thelarche/ pubarche and 25 with premature menarche), 47 CPP, and 177 age-matched normal controls. The IPP and CPP were diagnosed by clinical examination and GnRH-stimulation test and confirmed by over 2 years' follow-up...
March 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29422239/disorders-of-puberty
#3
REVIEW
Charles Sultan, Laura Gaspari, Laurent Maimoun, Nicolas Kalfa, Françoise Paris
Over the past 20 years, a clear secular trend toward the earlier onset of puberty has been described. A better knowledge should help clinicians attempting to define both precocious and delayed puberty (PP and DP, respectively). The definition of PP for girls is the appearance of secondary sex characteristics development before the age of 8 years, while DP is based on the absence of thelarche at the age of 13 years. Regarding PP, one should clinically distinguish between true precocious puberty, i.e., complete or central PP, and incomplete PP, which refers to premature thelarche, premature pubarche, and isolated menarche...
November 14, 2017: Best Practice & Research. Clinical Obstetrics & Gynaecology
https://www.readbyqxmd.com/read/29405766/urinary-bisphenol-a-levels-in-turkish-girls-with-premature-thelarche
#4
E Durmaz, A Asci, P Erkekoglu, A Balcı, I Bircan, B Koçer-Gumusel
There is a growing concern over the timing of pubertal breast development and its possible association with exposure to endocrine disrupting chemicals (EDCs), such as bisphenol A (BPA). BPA is abundantly used to harden plastics. The aim of this study was to investigate the relation between premature thelarche (PT) and BPA by comparing the urinary BPA levels of PT girls with those of healthy subjects. Twenty-five newly diagnosed nonobese PT subjects (aged 4-8 years) who were admitted to the Pediatric Endocrinology Department at Akdeniz University were recruited...
January 1, 2018: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/29373318/clinical-follow-up-data-and-the-rate-of-development-of-precocious-and-rapidly-progressive-puberty-in-patients-with-premature-thelarche
#5
Dilek Çiçek, Senay Savas-Erdeve, Semra Cetinkaya, Zehra Aycan
BACKGROUND: We aimed to evaluate the clinical follow-up data of patients with premature thelarche and determine the rate of development of precocious and early puberty in these patients. METHODS: The charts of 158 girls with premature thelarche who were followed-up in our pediatric endocrinology polyclinic were reviewed. The patients were divided into three groups according to the age at onset: group 1 (0-1 month) (n=12), group 2 (1-24 months) (n=40) and group 3 (2-8 years) (n=106)...
March 28, 2018: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/29323691/premature-thelarche
#6
Aditi Khokhar, Angela Mojica
Premature thelarche is a benign condition that affects young girls and may be interpreted as a sign of central precocious puberty (CPP). Parental concern is common when breast development is noted in a young girl. It is important to differentiate premature thelarche from CPP, as the latter is a more serious disorder that may affect final adult height and menarcheal age, and may have psychological implications as well. Distinguishing between the two conditions clinically may help the patients avoid unnecessary testing...
January 1, 2018: Pediatric Annals
https://www.readbyqxmd.com/read/29163361/girls-with-a-history-of-premature-adrenarche-have-advanced-growth-and-pubertal-development-at-the-age-of-12-years
#7
Jani Liimatta, Pauliina Utriainen, Raimo Voutilainen, Jarmo Jääskeläinen
Background: Premature adrenarche (PA) has been linked to early thelarche and menarche, but longitudinal data on growth and pubertal development after PA are insufficient. Methods: Growth and pubertal development of mostly full-term and appropriate for gestational age-born 43 PA (36 girls) and 63 control children (52 girls) were analyzed prospectively. Children examined first at the mean age of 7.6 years were reexamined at the mean age of 12.0 years. Results: The PA girls but not the boys were taller and had higher body mass index (BMI) than the controls...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/28878739/precocious-puberty-or-premature-thelarche-analysis-of-a-large-patient-series-in-a-single-tertiary-center-with-special-emphasis-on-6-to-8-year-old-girls
#8
Tero Varimo, Heta Huttunen, Päivi Johanna Miettinen, Laura Kariola, Johanna Hietamäki, Annika Tarkkanen, Matti Hero, Taneli Raivio
INTRODUCTION: We describe the etiology, MRI findings, and growth patterns in girls who had presented with signs of precocious puberty (PP), i.e., premature breast development or early menarche. Special attention was paid to the diagnostic findings in 6- to 8-year-olds. MATERIALS AND METHODS: We reviewed the medical records of 149 girls (aged 0.7-10.3 years) who had been evaluated for PP in the Helsinki University Hospital between 2001 and 2014. RESULTS: In 6- to 8-year-old girls, PP was most frequently caused by idiopathic gonadotropin-releasing hormone (GnRH)-dependent PP (60%) and premature thelarche (PT; 39%)...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/28804211/apparent-cyclic-vaginal-bleeding-in-a-child-factitious-disorder
#9
Ahmet Ucakturk, Figen Gunindi, Murat Aydin
A 20-mo-old girl was brought to our department by her mother because of breast enlargement. She was diagnosed with premature thelarche. One month later, she returned to our hospital with a complaint of vaginal bleeding. During the subsequent 6 mo, her vaginal bleeding recurred every month while her breast development disappeared. We performed laboratory tests and imaging. At the end of 6 mo, we realized that her mother's menstrual bleeding and the patient's blood staining were concurrent. The mother confessed applying her vaginal flow to her daughter's underwear...
2017: Clinical Pediatric Endocrinology: Case Reports and Clinical Investigations: Official Journal of the Japanese Society for Pediatric Endocrinology
https://www.readbyqxmd.com/read/28697822/-diagnostic-value-of-baseline-serum-luteinizing-hormone-level-for-central-precocious-puberty-in-girls
#10
Li-Xue Ou-Yang, Fan Yang
OBJECTIVE: To evaluate the diagnostic value of baseline serum luteinizing hormone (LH) level for central precocious puberty (CPP) in girls. METHODS: A total of 279 girls with precocious puberty were subjected to assessment of growth and development, bone age determination, baseline LH test, and follicle-stimulating hormone (FSH) test, gonadotropin-releasing hormone stimulation test, and other related examinations. Of the 279 patients, 175 were diagnosed with CPP and 104 with premature thelarche (PT)...
July 2017: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/28486374/premature-thelarche-and-the-pura-syndrome
#11
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...
June 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28440677/no-association-between-estrogen-receptor-gene-polymorphisms-and-premature-thelarche-in-girls
#12
Hae Sang Lee, Jong Seo Yoon, Cheol Hwan So, Kyung Hee Kim, Jin Soon Hwang
OBJECTIVE: Premature thelarche (PT) is a benign, nonprogressive condition defined as isolated breast development. While the pathophysiology of PT remains unclear, increased sensitivity to estrogen may cause PT. The aim of this study was to investigate the association between polymorphisms in the estrogen receptor alpha (ERα) gene and PT in girls. METHODS: In this case-control study, we examined 96 girls referred for early breast development (before the age of 8 years)...
October 2017: Gynecological Endocrinology
https://www.readbyqxmd.com/read/28422705/plasma-kisspeptin-and-ghrelin-levels-in-puberty-variant-cases
#13
Erdal Kurnaz, Yaşar Şen, Süleyman Aydın
BACKGROUND: The aim of this study was to determine the serum levels of kisspeptin and ghrelin (GAH), as well as the relationship of these two peptides with each other in premature thelarche (PT) and premature adrenarche (PA) cases and to investigate the possibility of using these peptides as markers in the differentiation of puberty disorders. METHODS: A PT group aged 1-8 years (n = 40), a PA group aged 1-9 years (n = 23, female/male = 20/3) and control groups consistent with each of the previous groups in terms of age and gender were created for the study...
April 19, 2017: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/28399535/17%C3%AE-estradiol-and-gonadotropin-levels-for-the-diagnosis-of-the-benign-form-of-breast-development-in-girls-aged-up-to-4-years-in-real-life-clinical-practice
#14
Martin Österbrand, Hans Fors, Kerstin Allvin, Ensio Norjavaara
BACKGROUND: Early onset of breast development in a young girl is usually a benign and isolated prepubertal condition, i.e., premature thelarche (PT), but can sometimes be progressive and the first sign of pubertal precocity (PP). Serum 17β-estradiol (17β-E2) level is a possible marker to differentiate between benign and pathological forms of breast development. We defined an upper serum 17β-E2 level for benign, "classic" PT for girls aged 9-48 months. METHODS: Serum 17β-E2 was analysed with a highly sensitive extraction radioimmunoassay (RIA)...
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
#15
Esben T Vestergaard, Mia E Schjørring, Konstantinos Kamperis, Karin Kastberg Petersen, Søren Rittig, Anders Juul, Kurt Kristensen, Niels H 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...
June 2017: European Journal of Endocrinology
https://www.readbyqxmd.com/read/28245188/amh-levels-in-girls-with-various-pubertal-problems
#16
COMPARATIVE STUDY
Senay Savas-Erdeve, Elif Sagsak, Meliksah Keskin, Semra Cetinkaya, Zehra Aycan
BACKGROUND: Anti-Müllerian hormone (AMH) is produced by granulosa cells surrounding follicles that have undergone recruitment from the primordial follicle pool but have not been selected for dominance (preantral and early antral follicles). In healthy girls, serum levels of AMH vary considerably between individuals. We aimed to evaluate the AMH level in girls with premature thelarche (PT) and central precocious puberty (CPP). METHODS: Girls with CPP (n=21), PT (n=24) and a control prepubertal group (n=22) were included in the study...
March 1, 2017: Journal of Pediatric Endocrinology & Metabolism: JPEM
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
#17
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, PARTICIPANTS, INTERVENTIONS, AND MAIN OUTCOME MEASURES: A total of 148 girls were enrolled, including 65 girls with premature thelarche and 83 girls with CPP, grouped on the basis of the results of gonadotropin-releasing hormone stimulation tests. Girls with CPP underwent a 6-month follow-up, and were further divided into 2 subgroups: the progressive CPP (P-CPP) group (n = 55) and the slowly P-CPP (SP-CPP) group (n = 28)...
June 2017: Journal of Pediatric and Adolescent Gynecology
https://www.readbyqxmd.com/read/28008860/basal-serum-neurokinin-b-levels-in-differentiating-idiopathic-central-precocious-puberty-from-premature-thelarche
#18
Mesut Parlak, Doğa Türkkahraman, Hamit Yaşar Ellidağ, Gamze Çelmeli, Ayşe Eda Parlak, Necat Yılmaz
OBJECTIVE: To find out 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. Patients with intracranial pathologies were excluded. Basal and stimulated follicle-stimulating hormone/luteinizing hormone (LH) levels and basal neurokinin B/kisspeptin levels were measured. Patients who had peak value of LH >5 mIU/mL and a bone age (BA)/chronological age (CA) ratio >1...
June 1, 2017: Journal of Clinical Research in Pediatric Endocrinology
https://www.readbyqxmd.com/read/27191050/central-precocious-puberty-revisiting-the-diagnosis-and-therapeutic-management
#19
REVIEW
Vinícius Nahime Brito, Angela Maria Spinola-Castro, Cristiane Kochi, Cristiane Kopacek, Paulo César Alves da Silva, Gil Guerra-Júnior
Clinical and laboratory diagnosis and treatment of central precocious puberty (CPP) remain challenging due to lack of standardization. The aim of this revision was to address the diagnostic and therapeutic features of CPP in Brazil based on relevant international literature and availability of the existing therapies in the country. The diagnosis of CPP is based mainly on clinical and biochemical parameters, and a period of follow-up is desirable to define the "progressive" form of sexual precocity. This occurs due to the broad spectrum of pubertal development, including isolated premature thelarche, constitutional growth and puberty acceleration, progressive and nonprogressive CPP, and early puberty...
April 2016: Archives of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/27035145/serum-levels-of-polybrominated-diphenyl-ethers-in-girls-with-premature-thelarche
#20
Annalisa Deodati, Alessia Sallemi, Francesca Maranghi, Daniela Germani, Antonella Puglianiello, Francesca Baldari, Luca Busani, Francesca Romana Mancini, Roberta Tassinari, Alberto Mantovani, Stefano Cianfarani
BACKGROUND/AIMS: Polybrominated diphenyl ethers (PBDEs) are widely used as flame retardants and have shown endocrine disruption properties in experimental studies. The aim of this study was to investigate the association between the exposure to PBDEs and alterations of puberty in girls referred for idiopathic central precocious puberty (ICPP) and premature thelarche (PT). METHODS: A case-control study was conducted in 124 girls: 37 girls with ICPP (mean age 7.4 ± 0...
2016: Hormone Research in Pædiatrics
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