Thyroxine-induced alterations in the testis and seminal vesicles of air-breathing catfish, Clarias gariepinus

T. N. Jacob, J. P. Pandey, K. Raghuveer, G. Sreenivasulu, A. D. Gupta, M. Yoshikuni, A. Jagota, B. Senthilkumaran

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13 Citations (Scopus)

Abstract

Effect of experimentally induced thyroxine overdose on the testis and seminal vesicles was studied in the air-breathing catfish, Clarias gariepinus during the preparatory and the pre-spawning phase. The present study revealed a marked reduction in testosterone level in serum, testis and seminal vesicles (SV). Histological examination showed a considerable reduction in the number of spermatozoa/spermatids in the seminiferous tubular lumen as well as depletion of fluid in the loculi of SV. SDS-PAGE analysis of SV fluid proteins demonstrated a significant decrease in the level of a ∼27 kDa protein in thyroxine treated fishes. Evidences are presented here to indicate that thyroid hormone plays a role in regulating testis and SV function in catfish.

Original languageEnglish
Pages (from-to)271-274
Number of pages4
JournalFish Physiology and Biochemistry
Volume31
Issue number2-3
DOIs
Publication statusPublished - Apr 2005
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Physiology
  • Aquatic Science

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