Abstract:
:Di-n-Butyl (DBP) and Di-(2-EthylHexyl) (DEHP) phthalates can leach from daily-use products resulting in environmental exposure. In male rodents, phthalate exposure results in reproductive effects. To evaluate effects on the immature primate testis, testis fragments from 6-month-old rhesus macaques were grafted subcutaneously to immune-deficient mice, which were exposed to 0, 10, or 500 mg/kg of DBP or DEHP for 14 weeks or 28 weeks (DBP only). DBP exposure reduced the expression of key steroidogenic genes, indicating that Leydig cell function was compromised. Exposure to 500 mg/kg impaired tubule formation and germ cell differentiation and reduced numbers of spermatogonia. Exposure to 10 mg/kg did not affect development, but reduced Sertoli cell number and resulted in increased expression of inhibin B. Exposure to DEHP for 14 week also affected steroidogenic genes expression. Therefore, long-term exposure to phthalate esters affected development and function of the primate testis in a time and dosage dependent manner.
journal_name
Mol Cell Endocrinoljournal_title
Molecular and cellular endocrinologyauthors
Rodriguez-Sosa JR,Bondareva A,Tang L,Avelar GF,Coyle KM,Modelski M,Alpaugh W,Conley A,Wynne-Edwards K,França LR,Meyers S,Dobrinski Idoi
10.1016/j.mce.2014.10.004subject
Has Abstractpub_date
2014-12-01 00:00:00pages
89-100issue
1-2eissn
0303-7207issn
1872-8057pii
S0303-7207(14)00315-3journal_volume
398pub_type
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