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    • P Anandalaxmi

      Articles written in Journal of Biosciences

    • Volume 14 Issue 4 December 1989 pp 391-398

      Effects of postnatal treatment with naloxone on plasma gonadotropin, prolactin, testosterone and testicular functions in male rats

      P Anandalaxmi E Vijayan

      More Details Abstract Fulltext PDF

      Opioid peptides are implicated in the control of gonadotropin and prolactin secretion. The role of opioid antagonist naloxone and its effects on plasma gonadotropin, prolactin, testosterone levels and testicular hyaluronidase, acid phosphatase, [3H]uridine and thymidine incorporation, RNA, DNA and protein concentrations were evaluated in rats after administration of naloxone beginning day 1 through 21 and autopsied on 45, 60 and 90 days of age. Plasma gonadotropin and testosterone levels were significantly elevated after naloxone treatment. Testicular hyaluronidase and acid phosphatase activity increased till 60 days post treatment and declined thereafter. Concentrations of RNA and protein did not change significantly but the concentration of DNA declined at 45 and 60 days of age. These results suggest that endogenous opioid peptides exert regulatory influence on gonadotropin secretion which in turn control the testicular function in the male rat.

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      Forthcoming Special issue.


    • To trigger further research on plant mitochondria, the Journal of Biosciences is bringing out a special issue titled "Plant Mitochondria: Properties and Interactions with Other Organelles".


      Plant mitochondria are quite distinct and have unique features, such as a cyanide-insensitive alternate pathway. They also interact with chloroplasts to optimize photosynthetic carbon assimilation.


      Submissions are welcome until 30 July 2023. The contributions can be original articles, short communications, reviews, or mini-reviews on any topic related to plant mitochondria.


      Authors can submit their articles online at https://www.editorialmanager.com/jbsc/default2.aspx

      Posted on April 12, 2023
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