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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/29546931/-granulosa-cell-ovarian-tumor-precocious-puberty-in-infant-less-than-1-year-of-age-case-report
#2
Patricia Lacourt, Julio Soto, Hana Rumié, Roger Gejman, Juan Carlos Pattillo, Cristián García, Hernán García
INTRODUCTION: Juvenile granulosa cell tumors (JGCT) are very rare, especially in infants under the age of one. The most frequent presentation is with signs of precocious puberty. OBJECTIVE: Present an in fant with peripheral precocious puberty, diagnosis of JGCT and follow up. CLINICAL CASE: 10-month-old female infant with thelarche, pubic hair and palpable abdominal mass accompanied with eleva ted levels of estradiol, very low gonadotrophins and images that show a very large ovarian mass...
December 2017: Revista Chilena de Pediatría
https://www.readbyqxmd.com/read/29517679/observational-study-pelvic-ultrasound-a-useful-tool-in-the-diagnosis-and-differentiation-of-precocious-puberty-in-chinese-girls
#3
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
#4
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
#5
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
#6
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)...
January 26, 2018: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/29323691/premature-thelarche
#7
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/29235933/faster-ticking-rate-of-the-epigenetic-clock-is-associated-with-faster-pubertal-development-in-girls
#8
Alexandra M Binder, Camila Corvalan, Verónica Mericq, Ana Pereira, José Luis Santos, Steve Horvath, John Shepherd, Karin B Michels
Epigenetic age is an indicator of biological aging, capturing the impact of environmental and behavioral influences across time on cellular function. Deviance between epigenetic age and chronological age (AgeAccel) is a predictor of health. Pubertal timing has similarly been associated with cancer risk and mortality rate among females. We examined the association between AgeAccel and pubertal timing and adolescent breast composition in the longitudinal Growth and Obesity Cohort Study. AgeAccel was estimated in whole blood using the Horvath method at breast Tanner 2 (B2) and 4 (B4)...
2018: Epigenetics: Official Journal of the DNA Methylation Society
https://www.readbyqxmd.com/read/29215515/isolated-absent-thelarche-in-a-patient-with-neurofibromatosis-type-1-and-acromegaly
#9
REVIEW
Anne E Martini, Jessica R Zolton, Alan H DeCherney
BACKGROUND: Isolated absent thelarche is a rare condition that is infrequently reviewed in the literature. CASE: A 28-year-old woman with neurofibromatosis type 1 and acromegaly presented with absent breast development despite hormone therapy. Examination noted a normally developed woman with acromegalic features and Tanner stage I breasts. Hormone studies and karyotype were normal. Magnetic resonance imaging of the patient's brain demonstrated a voluminous pituitary...
January 2018: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29174167/progress-in-the-diagnosis-and-management-of-adolescent-endometriosis-an-opinion
#10
REVIEW
Giuseppe Benagiano, Sun-Wei Guo, Patrick Puttemans, Stephan Gordts, Ivo Brosens
Increasing evidence indicates that early onset endometriosis (EOE), starting around menarche or early adolescence, may have an origin different from the adult variant, originating from neonatal uterine bleeding (NUB). This implies seeding of naïve endometrial progenitor cells into the pelvic cavity with NUB; these can then activate around thelarche. It has its own pathophysiology, symptomatology and risk factors, warranting critical management re-evaluation. It can also be progressive, endangering future reproductive capacity...
January 2018: Reproductive Biomedicine Online
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
#11
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/29140420/growth-trajectories-breast-size-and-breast-tissue-composition-in-a-british-pre-birth-cohort-of-young-women
#12
Rachel Denholm, Bianca De Stavola, John H Hipwell, Simon J Doran, Marta C Busana, Martin O Leach, David J Hawkes, Isabel Dos-Santos-Silva
Mammographic % density, the proportion of fibroglandular tissue in the breast, is a strong risk factor for breast cancer, but its determinants in young women are unknown. We examined associations between magnetic resonance imaging (MRI) breast-tissue composition at age 21 years and prospectively-collected measures of body size and composition from birth to early adulthood, and markers of puberty (all standardized), in a sample of 500 nulliparous women from a pre-birth cohort of children born in Avon, England, in 1991-1992 and followed up to 2011-2014...
November 13, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/29077908/differential-impact-of-genetic-loci-on-age-at-thelarche-and-menarche-in-healthy-girls
#13
Alexander S Busch, Casper P Hagen, Maria Assens, Katharina M Main, Kristian Almstrup, Anders Juul
Context: Recent genetic studies have identified genetic variants associated with age at pubertal onset. Whereas genome-wide association studies reported associations of several hundred genetic variants with timing of self-reported age at menarche, a recent clinical study focused on genetic variation affecting follicle-stimulating hormone action and clinically determined age at thelarche. The observations appear to be incongruent, as effect sizes varied substantially among the studies...
January 1, 2018: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29020129/maternal-pre-pregnancy-bmi-gestational-weight-gain-and-daughter-s-age-at-menarche-the-avon-longitudinal-study-of-parents-and-children
#14
Rebecca B Lawn, Debbie A Lawlor, Abigail Fraser
Earlier puberty and menarcheal age are associated with adverse health outcomes. Reported associations of maternal adiposity with daughters' menarcheal age are inconsistent. We examined associations between maternal pre-pregnancy body mass index (BMI) and gestational weight gain (GWG), and daughters' age at menarche (n = 3,935), pubarche (Tanner stage 2 for pubic hair) and thelarche (Tanner stage 2 for breast development) (n = 2,942) in the Avon Longitudinal Study of Parents and Children, a UK prospective pregnancy cohort (baseline 1991-1992)...
September 11, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/29018155/clinical-characteristics-of-138-chinese-female-patients-with-idiopathic-hypogonadotropic-hypogonadism
#15
Rui-Yi Tang, Rong Chen, Miao Ma, Shou-Qing Lin, Yi-Wen Zhang, Ya-Ping Wang
OBJECTIVE: To evaluate the clinical features of Chinese women with idiopathic hypogonadotropic hypogonadism (IHH). METHODS: We retrospectively reviewed the clinical characteristics, laboratory and imaging findings, therapeutic management and fertility outcomes of 138 women with IHH. All patients had been treated and followed up at an academic medical centre during 1990-2016. RESULTS: Among the 138 patients, 82 patients (59.4%) were diagnosed with normosmic IHH and 56 patients (40...
November 2017: Endocrine Connections
https://www.readbyqxmd.com/read/28939588/childhood-socioeconomic-position-and-pubertal-onset-in-a-cohort-of-multiethnic-girls-implications-for-breast-cancer
#16
Robert A Hiatt, Susan L Stewart, Kristin S Hoeft, Lawrence H Kushi, Gayle C Windham, Frank M Biro, Susan M Pinney, Mary S Wolff, Susan L Teitelbaum, Dejana Braithwaite
Background: Higher socioeconomic position (SEP) has been associated with increased risk of breast cancer. Its relationship with earlier age of pubertal onset, a risk factor for breast cancer, is less clear. Methods: We studied the relationship of SEP to pubertal onset in a multiethnic cohort of 1,237 girls ages 6 to 8 years at baseline. Girls in three U.S. cities were followed for 5 to 8 years with annual clinical examinations from 2004 to 2012. SEP measures were examined for associations with pubertal onset, assessed by breast budding (thelarche) and pubic hair development (adrenarche)...
December 2017: Cancer Epidemiology, Biomarkers & Prevention
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
#17
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
#18
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
#19
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/28508614/methods-for-rating-sexual-development-in-girls
#20
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
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