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Volume 2, Issue 1 (March 2000) 2, 57–64;

Protein profiles in various epididymal segments of normal and castrated rats

P.P. Mathur, A.Marshall, C.Y. Cheng

1.School of Life Sciences, Pondicherry University, Pondicherry-605 014, India
    2.The Population Council, Center for Biomedical Research,1230 York Avenue, New York, NY 10021, USA

Advance online publication 1 March 2000


Aim: Epididymal proteins are known to play an important role in the maturation of spermatozoa. We ought to determine if there are regional differences in androgen-dependent epididymal proteins. Methods: A group of adult rats was castrated and epididymides were removed three days following castration. The epididymides were dissected into caput, corpus and cauda segments, homogenized, and proteins were fractionated by anion exchange HPLC. Proteins in selected fractions were resolved by SDS-PAGE and visualized by silver staining. Results: It was observed that the levels of multiple proteins drastically reduced in the various regions of epididymis of the orchiectomized rats. Conclusion: The epididymal proteins appear to be useful markers to study androgenic action in the epididymis.

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