Abstract
BACKGROUND: Few human studies have examined bisphenol A (BPA) exposure in relation to semen quality and reproductive hormones in men, and results are divergent.
OBJECTIVES: We examined associations between urinary BPA concentration and reproductive hormones, as well as semen quality, in young men from the general population.
METHODS: Our study population consisted of 308 young men from the general population. Urinary BPA concentration was measured by isotope dilution TurboFlow-liquid chromatography-tandem mass spectrometry. We used multiple linear regression analysis to estimate associations between BPA concentration and reproductive hormones and semen quality, adjusting for confounding factors.
RESULTS: We found that 98% of the men had detectable urinary levels of BPA. Median (5th-95th percentiles) BPA concentration was 3.25 ng/mL (0.59-14.89 ng/mL). Men with BPA concentrations above the lowest quartile had higher concentrations of serum testosterone, luteinizing hormone (LH), estradiol, and free testosterone compared with the lowest quartile (p trend ≤ 0.02). Men in the highest quartile of BPA excretion had on average 18% higher total testosterone (95% CI: 8, 28%), 22% higher LH (95% CI: 6, 39%), and 13% higher estradiol (95% CI: 4, 24%) compared with lowest quartile. Men in the highest quartile of BPA also had significantly lower percentage progressive motile spermatozoa compared with men in the lowest quartile (-6.7 percentage points, 95% CI: -11.76, -1.63). BPA was not associated with other semen parameters. Adjusting for dietary patterns did not influence the results.
CONCLUSIONS: The pattern of associations between BPA and reproductive hormones could indicate an antiandrogenic or antiestrogenic effect, or both, of BPA on the hypothalamic-pituitary-gonadal hormone feedback system, possibly through a competitive inhibition at the receptor level. However, additional research is needed to confirm our findings and to further test the suggested potential mechanisms.
Original language | English |
---|---|
Journal | Environmental Health Perspectives |
Volume | 122 |
Issue number | 5 |
Pages (from-to) | 478-84 |
Number of pages | 7 |
ISSN | 0091-6765 |
DOIs | |
Publication status | Published - May 2014 |
Keywords
- Benzhydryl Compounds
- Estradiol
- Humans
- Luteinizing Hormone
- Male
- Phenols
- Semen
- Semen Analysis
- Testosterone
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Lassen, T. H., Frederiksen, H., Jensen, T. K., Petersen, J. H., Joensen, U. N., Main, K. M., Skakkebaek, N. E., Juul, A., Jørgensen, N. (2014). Urinary bisphenol A levels in young men: association with reproductive hormones and semen quality. Environmental Health Perspectives, 122(5), 478-84. https://doi.org/10.1289/ehp.1307309
Urinary bisphenol A levels in young men: association with reproductive hormones and semen quality. / Lassen, Tina Harmer; Frederiksen, Hanne; Jensen, Tina Kold et al.
In: Environmental Health Perspectives, Vol. 122, No. 5, 05.2014, p. 478-84.
Research output: Contribution to journal › Journal article › Research › peer-review
Lassen, TH, Frederiksen, H, Jensen, TK, Petersen, JH, Joensen, UN, Main, KM, Skakkebaek, NE, Juul, A, Jørgensen, N 2014, 'Urinary bisphenol A levels in young men: association with reproductive hormones and semen quality', Environmental Health Perspectives, vol. 122, no. 5, pp. 478-84. https://doi.org/10.1289/ehp.1307309
Lassen TH, Frederiksen H, Jensen TK, Petersen JH, Joensen UN, Main KM et al. Urinary bisphenol A levels in young men: association with reproductive hormones and semen quality. Environmental Health Perspectives. 2014 May;122(5):478-84. doi: 10.1289/ehp.1307309
Lassen, Tina Harmer ; Frederiksen, Hanne ; Jensen, Tina Kold et al. / Urinary bisphenol A levels in young men : association with reproductive hormones and semen quality. In: Environmental Health Perspectives. 2014 ; Vol. 122, No. 5. pp. 478-84.
@article{661069ae1d9d4a38be7812bff0b23387,
title = "Urinary bisphenol A levels in young men: association with reproductive hormones and semen quality",
abstract = "BACKGROUND: Few human studies have examined bisphenol A (BPA) exposure in relation to semen quality and reproductive hormones in men, and results are divergent.OBJECTIVES: We examined associations between urinary BPA concentration and reproductive hormones, as well as semen quality, in young men from the general population.METHODS: Our study population consisted of 308 young men from the general population. Urinary BPA concentration was measured by isotope dilution TurboFlow-liquid chromatography-tandem mass spectrometry. We used multiple linear regression analysis to estimate associations between BPA concentration and reproductive hormones and semen quality, adjusting for confounding factors.RESULTS: We found that 98% of the men had detectable urinary levels of BPA. Median (5th-95th percentiles) BPA concentration was 3.25 ng/mL (0.59-14.89 ng/mL). Men with BPA concentrations above the lowest quartile had higher concentrations of serum testosterone, luteinizing hormone (LH), estradiol, and free testosterone compared with the lowest quartile (p trend ≤ 0.02). Men in the highest quartile of BPA excretion had on average 18% higher total testosterone (95% CI: 8, 28%), 22% higher LH (95% CI: 6, 39%), and 13% higher estradiol (95% CI: 4, 24%) compared with lowest quartile. Men in the highest quartile of BPA also had significantly lower percentage progressive motile spermatozoa compared with men in the lowest quartile (-6.7 percentage points, 95% CI: -11.76, -1.63). BPA was not associated with other semen parameters. Adjusting for dietary patterns did not influence the results.CONCLUSIONS: The pattern of associations between BPA and reproductive hormones could indicate an antiandrogenic or antiestrogenic effect, or both, of BPA on the hypothalamic-pituitary-gonadal hormone feedback system, possibly through a competitive inhibition at the receptor level. However, additional research is needed to confirm our findings and to further test the suggested potential mechanisms.",
keywords = "Benzhydryl Compounds, Estradiol, Humans, Luteinizing Hormone, Male, Phenols, Semen, Semen Analysis, Testosterone",
author = "Lassen, {Tina Harmer} and Hanne Frederiksen and Jensen, {Tina Kold} and Petersen, {J{\o}rgen Holm} and Joensen, {Ulla N} and Main, {Katharina M} and Skakkebaek, {Niels E} and Anders Juul and Niels J{\o}rgensen and Anna-Maria Andersson",
year = "2014",
month = may,
doi = "10.1289/ehp.1307309",
language = "English",
volume = "122",
pages = "478--84",
journal = "Environmental Health Perspectives",
issn = "0091-6765",
publisher = "U.S. Department of Health and Human Services National Institute of Environmental Health Sciences",
number = "5",
}
TY - JOUR
T1 - Urinary bisphenol A levels in young men
T2 - association with reproductive hormones and semen quality
AU - Lassen, Tina Harmer
AU - Frederiksen, Hanne
AU - Jensen, Tina Kold
AU - Petersen, Jørgen Holm
AU - Joensen, Ulla N
AU - Main, Katharina M
AU - Skakkebaek, Niels E
AU - Juul, Anders
AU - Jørgensen, Niels
AU - Andersson, Anna-Maria
PY - 2014/5
Y1 - 2014/5
N2 - BACKGROUND: Few human studies have examined bisphenol A (BPA) exposure in relation to semen quality and reproductive hormones in men, and results are divergent.OBJECTIVES: We examined associations between urinary BPA concentration and reproductive hormones, as well as semen quality, in young men from the general population.METHODS: Our study population consisted of 308 young men from the general population. Urinary BPA concentration was measured by isotope dilution TurboFlow-liquid chromatography-tandem mass spectrometry. We used multiple linear regression analysis to estimate associations between BPA concentration and reproductive hormones and semen quality, adjusting for confounding factors.RESULTS: We found that 98% of the men had detectable urinary levels of BPA. Median (5th-95th percentiles) BPA concentration was 3.25 ng/mL (0.59-14.89 ng/mL). Men with BPA concentrations above the lowest quartile had higher concentrations of serum testosterone, luteinizing hormone (LH), estradiol, and free testosterone compared with the lowest quartile (p trend ≤ 0.02). Men in the highest quartile of BPA excretion had on average 18% higher total testosterone (95% CI: 8, 28%), 22% higher LH (95% CI: 6, 39%), and 13% higher estradiol (95% CI: 4, 24%) compared with lowest quartile. Men in the highest quartile of BPA also had significantly lower percentage progressive motile spermatozoa compared with men in the lowest quartile (-6.7 percentage points, 95% CI: -11.76, -1.63). BPA was not associated with other semen parameters. Adjusting for dietary patterns did not influence the results.CONCLUSIONS: The pattern of associations between BPA and reproductive hormones could indicate an antiandrogenic or antiestrogenic effect, or both, of BPA on the hypothalamic-pituitary-gonadal hormone feedback system, possibly through a competitive inhibition at the receptor level. However, additional research is needed to confirm our findings and to further test the suggested potential mechanisms.
AB - BACKGROUND: Few human studies have examined bisphenol A (BPA) exposure in relation to semen quality and reproductive hormones in men, and results are divergent.OBJECTIVES: We examined associations between urinary BPA concentration and reproductive hormones, as well as semen quality, in young men from the general population.METHODS: Our study population consisted of 308 young men from the general population. Urinary BPA concentration was measured by isotope dilution TurboFlow-liquid chromatography-tandem mass spectrometry. We used multiple linear regression analysis to estimate associations between BPA concentration and reproductive hormones and semen quality, adjusting for confounding factors.RESULTS: We found that 98% of the men had detectable urinary levels of BPA. Median (5th-95th percentiles) BPA concentration was 3.25 ng/mL (0.59-14.89 ng/mL). Men with BPA concentrations above the lowest quartile had higher concentrations of serum testosterone, luteinizing hormone (LH), estradiol, and free testosterone compared with the lowest quartile (p trend ≤ 0.02). Men in the highest quartile of BPA excretion had on average 18% higher total testosterone (95% CI: 8, 28%), 22% higher LH (95% CI: 6, 39%), and 13% higher estradiol (95% CI: 4, 24%) compared with lowest quartile. Men in the highest quartile of BPA also had significantly lower percentage progressive motile spermatozoa compared with men in the lowest quartile (-6.7 percentage points, 95% CI: -11.76, -1.63). BPA was not associated with other semen parameters. Adjusting for dietary patterns did not influence the results.CONCLUSIONS: The pattern of associations between BPA and reproductive hormones could indicate an antiandrogenic or antiestrogenic effect, or both, of BPA on the hypothalamic-pituitary-gonadal hormone feedback system, possibly through a competitive inhibition at the receptor level. However, additional research is needed to confirm our findings and to further test the suggested potential mechanisms.
KW - Benzhydryl Compounds
KW - Estradiol
KW - Humans
KW - Luteinizing Hormone
KW - Male
KW - Phenols
KW - Semen
KW - Semen Analysis
KW - Testosterone
U2 - 10.1289/ehp.1307309
DO - 10.1289/ehp.1307309
M3 - Journal article
C2 - 24786630
SN - 0091-6765
VL - 122
SP - 478
EP - 484
JO - Environmental Health Perspectives
JF - Environmental Health Perspectives
IS - 5
ER -