Abstract Title:

Plasma phthalate levels in pubertal gynecomastia.

Abstract Source:

Pediatrics. 2010 Jan;125(1):e122-9. Epub 2009 Dec 14. PMID: 20008419

Abstract Author(s):

Erdem Durmaz, Elif N Ozmert, Pinar Erkekoglu, Belma Giray, Orhan Derman, Filiz Hincal, Kadriye Yurdakök

Article Affiliation:

Department of Pediatrics, Hacettepe University, Ankara, Turkey.


OBJECTIVE: Several untoward health effects of phthalates, which are a group of industrial chemicals with many commercial uses including personal-care products and plastic materials, have been defined. The most commonly used, di-(2-ethylhexyl)-phthalate (DEHP), is known to have antiandrogenic or estrogenic effects or both. Mono-(2-ethylhexyl)-phthalate (MEHP) is the main metabolite of DEHP. In this study, we aimed to determine the plasma DEHP and MEHP levels in pubertal gynecomastia cases. PATIENTS AND METHODS: The study group comprised 40 newly diagnosed pubertal gynecomastia cases who were admitted to Hacettepe University Ihsan Doğramaci Children's Hospital. The control group comprised 21 age-matched children without gynecomastia or other endocrinologic disorder. Plasma DEHP and MEHP levels were measured by using high-performance liquid chromatography. Serum hormone levels were determined in some pubertal gynecomastia casesaccording to the physician's evaluation. RESULTS: Plasma DEHP and MEHP levels were found to be statistically significantly higher in the pubertal gynecomastia group compared with the control group (P<.001) (DEHP, 4.66 +/- 1.58 and 3.09 +/- 0.90 microg/mL, respectively [odds ratio: 2.77 (95% confidence interval: 1.48-5.21)]; MEHP, 3.19 +/- 1.41 and 1.37 +/- 0.36 microg/mL [odds ratio: 24.76 (95% confidence interval: 3.5-172.6)]). There was a statistically significant correlation between plasma DEHP and MEHP levels (r: 0.58; P<.001). In the pubertal gynecomastia group, no correlation could be determined between plasma DEHP and MEHP levels and any of the hormone levels. CONCLUSIONS: DEHP, which has antiandrogenic or estrogenic effects, may be an etiologic factor in pubertal gynecomastia. These results may pioneer larger-scale studies on the etiologic role of DEHP in pubertal gynecomastia.

Study Type : Human Study

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