Zhou Xin-Chang

Chinese Academy of Sciences, Peping, Beijing, China

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Publications (1)2.34 Total impact

  • Zhou Xin-Chang · Wei Peng · Hu Zhao-Yuan · Han Xiao-Bin · Zhou Ru-Jin · Liu Yi-Xun
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    ABSTRACT: Previous studies on azoospermia or oligozoospermia induced by heat stress or high doses of testosterone mainly focused on germ cell apoptosis; no data regarding their possible effect on spermatogonia mitosis are available. We have established unilateral cryptorchid and testosterone undecanoate (TU)-treated monkey models and examined expression of P16(INK4a) in the testis to look at its possible role in azoospermia or oligozoospermia induced by the heat stress or the TU treatment. The results showed that both heat stress and TU were capable of inducing expression of P16(INK4a) mainly in spermatogonia and other types of germ cells as well as Sertoli cells at the later stage of germ cell apoptosis, namely on Day 10 after operation or on Day 60 after TU injection. It is, therefore, suggested for the first time that P16(INK4a) protein may inhibit the spermatogonia mitosis in the testis at the later stage of the germ cell apoptosis, resulting in arrest of spermatogenesis.
    No preview · Article · Apr 2002 · Contraception

Publication Stats

15 Citations
2.34 Total Impact Points

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  • 2002
    • Chinese Academy of Sciences
      • State Key Laboratory of Reproductive Biology
      Peping, Beijing, China