Reproductive hormones in relation to polycyclic aromatic hydrocarbon (PAH) metabolites among non-occupational exposure of males.
A limited number of studies have suggested that exposure to PAHs may affect reproductive hormones. Subjects (n=642) in this study were from the affiliated hospitals of Nanjing Medical University. Individual exposures to PAHs were measured as spot urinary concentrations of four PAH metabolites, including 1-naphthol (1-N), 2-naphthol (2-N), 2-hydroxyfluorene (2-OF) and 1-hydroxypyrene (1-OP), which were adjusted by urinary creatinine (CR). Blood samples were collected to measure serum levels of reproductive hormones, including follicle-stimulating hormone (FSH), luteotrophic hormone (LH), estradiol (E2), testosterone (T) and prolactin (PRL). All of the subjects had detectable levels of the four metabolites of PAHs in their urine samples. The median concentrations of 1-N, 2-N, 2-OF and 1-OP were 2.440, 4.176, 2.843 and 1.148 microg/g of CR. There were significant P-values between increased CR-adjusted 1-N tertiles and E2 concentration, 2-OF tertiles and LH, FSH level, 1-OP and E2 level. The multivariate linear regression results also showed significant correlation between the levels of serum LH and 1-OP (the adjusting P-value was 0.048), but no correlations were found between other hormones and the level of PAH metabolites. These observed correlations between levels of hydroxy-PAH and some altered hormones indicated slight endocrine effects on adult men with PAH exposure.
Han
Yan
Y
National Center for STD Control, Chinese Academy of Medical Sciences and Peking Union Medical College Institute of Dermatology, Nanjing, PR China.
Xia
Yankai
Y
Zhu
Pengfei
P
Qiao
Shanlei
S
Zhao
Rencheng
R
Jin
Nianzu
N
Wang
Shoulin
S
Song
Ling
L
Fu
Guangbo
G
Wang
Xinru
X
D000328:Adult; D002681:China; D004781:Environmental Exposure / Q000032:analysis*; D004784:Environmental Monitoring / Q000379:methods*; D004958:Estradiol / Q000097:blood; D005449:Fluorenes / Q000652:urine; D043373:Follicle Stimulating Hormone, Human / Q000097:blood; D006728:Hormones / Q000097:blood*; D006801:Humans; D007986:Luteinizing Hormone / Q000097:blood; D008297:Male; D009284:Naphthols / Q000652:urine; D011084:Polycyclic Aromatic Hydrocarbons / Q000652:urine*; D011388:Prolactin / Q000097:blood; D011721:Pyrenes / Q000032:analysis; D012016:Reference Values; D013739:Testosterone / Q000097:blood
D005449:Fluorenes; D043373:Follicle Stimulating Hormone, Human; D006728:Hormones; D009284:Naphthols; D011084:Polycyclic Aromatic Hydrocarbons; D011721:Pyrenes; C029350:1-naphthol; D013739:Testosterone; D004958:Estradiol; D011388:Prolactin; D007986:Luteinizing Hormone; C477779:2-hydroxyfluorene; C033146:1-hydroxypyrene; C028405:2-naphthol