Polybrominated Biphenyl Exposure and Menstrual Cycle Function
| Autor: | Metrecia L. Terrell, Juliana W. Meadows, James S. Kesner, Amita K. Manatunga, Jessica B. Spencer, Penelope P. Howards, Kira C. Taylor, Michele Marcus, Melanie H. Jacobson |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Adult
Michigan Polybrominated biphenyl Adolescent Epidemiology media_common.quotation_subject Polybrominated Biphenyls 01 natural sciences Article Young Adult 010104 statistics & probability 03 medical and health sciences 0302 clinical medicine Environmental health Accidents Occupational Humans Medicine Prospective Studies 030212 general & internal medicine 0101 mathematics Menstrual Cycle Menstrual cycle Flame Retardants media_common business.industry Extramural Environmental Exposure Middle Aged humanities Environmental Pollutants Female business Biomarkers Contaminated food |
| Zdroj: | Epidemiology |
| ISSN: | 1044-3983 |
| Popis: | BACKGROUND: Brominated flame retardants, including polybrominated biphenyls (PBB), are persistent compounds reported to affect sex hormones in animals; less is known about potential effects in humans. An industrial accident in 1973–1974 exposed Michigan residents to PBB through contaminated food. We examined whether this exposure to PBB had long-term effects on menstrual cycle function. METHODS: In 2004–06, we recruited reproductive-aged women in the Michigan PBB Registry who were not pregnant, lactating, or taking hormonal medications. Participants kept daily diaries and provided daily urine for up to 6 months. We assayed urine samples for estrone 3-glucuronide (E(1)3G), pregnanediol 3-glucuronide (Pd3G), and follicle stimulating hormone (FSH). We fit linear mixed models among women aged 35–42 years to describe the relation between serum PBB levels and log-transformed, creatinine-adjusted daily endocrine levels among women who were premenarchal during the exposure incident in 1973–74 (n=70). RESULTS: We observed that high (>3.0 parts per billion (ppb)) and medium (>1.0–3.0 ppb) PBB exposure were associated with lower E(1)3G levels across the menstrual cycle and lower FSH levels during the follicular phase, compared with low PBB exposure (≤1.0 ppb). High PBB exposure was also associated with lower Pd3G levels across the cycle compared with low PBB exposure, whereas Pd3G levels were similar in women with medium and low PBB exposure. CONCLUSIONS: Our results are consistent with a hypothesized effect of exposure to an exogenous estrogen agonist but the modest sample size of the study requires cautious interpretation. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|