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The Capital Region of Denmark - a part of Copenhagen University Hospital
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Pubertal Progression and Reproductive Hormones in Healthy Girls with Transient Thelarche

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CONTEXT: Detailed evaluation of pubertal progression in girls from longitudinal studies is sparse and the phenomenon of transient thelarche (TT), defined as the appearance, regression and subsequent reappearance of breast buds, in healthy girls remains undescribed.

OBJECTIVE: To describe TT in terms of pubertal progression, growth, genotypes and reproductive hormones and to apply new puberty nomograms for breast stages, pubic hair and menarche.

DESIGN: A prospective, longitudinal population-based study.

SETTING: Healthy school children in Denmark.

PATIENTS OR OTHER PARTICIPANTS: 98 healthy, Caucasian girls followed longitudinally as part of COPENHAGEN Puberty Study were included in the evaluation of TT. A total of 1466 girls from two cross-sectional studies were included in the creation of the puberty nomograms.

INTERVENTION(S): None.

MAIN OUTCOME MEASURE(S): Pubertal progression, specifically thelarche, reproductive hormones, genotype, and growth.

RESULTS: 12 of 98 (12%) girls experienced TT. A larger proportion of girls with TT entered puberty by the pubarche pathway (50%) compared to girls with normal progression (15.4%), p = 0.014. Girls with TT progressed through puberty normally when evaluated using puberty nomograms. Reproductive hormones and growth velocity were lower at the first (transient) thelarche than the second (permanent) thelarche.

CONCLUSION: TT is a frequent phenomenon that appears to be a peripheral occurrence independent of central puberty. It does not appear to affect subsequent pubertal progression as evaluated by our new puberty nomograms.

Original languageEnglish
JournalThe Journal of clinical endocrinology and metabolism
Volume102
Issue number3
Pages (from-to)1001-1008
ISSN0021-972X
DOIs
Publication statusPublished - 2017

ID: 49789643