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Low Dose of Genistein Alleviates Mono-(2-Ethylhexyl) Phthalate-Induced Fetal Testis Disorder Based on Organ Culture Model.

Oxidative medicine and cellular longevity (2020-06-23)
Tong-Dian Zhang, Yu-Bo Ma, He-Cheng Li, Tie Chong, Zi-Ming Wang, Lian-Dong Zhang
ABSTRACT

Mono-(2-ethylhexyl) phthalate (MEHP) and genistein have been classified as endocrine-disrupting chemicals (EDCs) which interfere with the differentiation and development of the male reproductive system. However, how these two EDCs would affect fetal rat testis development at a low dose was rarely studied. In this study, we established the organ culture system and applied it to evaluate testicular effects following multiple EDC exposure at a low dose. 15.5 days postcoitum fetal rat testes were dissected, cultured, and exposed to vehicle (control), GEN (1 μmol/L, G), MEHP (1 μmol/L, M), or GEN (1 μmol/L)+MEHP (1 μmol/L, G+M). Testicular cell markers, testosterone concentration, redox state, testicular histology, and testicular ultrastructure were evaluated. Our results showed that a low dose of MEHP suppressed the development of Sertoli cells, Leydig cells, and gonocytes by triggering oxidative injuries, which was consistent with the ultrastructural findings. However, coadministration of genistein at a low dose could partially attenuate MEHP-induced fetal testis damage through antioxidative action. Cotreatment of genistein at a low dose may have a promising future on its protecting role for attenuating other EDC-induced reproductive disorders during early life. Based on the results, it can be speculated that dietary intake of isoflavones may make the fetal testis less susceptible to phthalate-induced injury.

MATERIALS
Product Number
Brand
Product Description

Millipore
Millicell Cell Culture Insert, 12 mm, hydrophilic PTFE, 0.4 µm, Hydrophilic PTFE cell culture insert with pore size of 0.4 µm used in a 24-well plate for Cell Attachment, Cell Culture, Cell Differentiation, Fluorescence & Low Protein Binding.
Sigma-Aldrich
Phthalic acid mono-2-ethylhexyl ester, 97%

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