Stimulation of ornithine decarboxylase activity by luteinizing hormone releasing hormone in the testis of immature rat

Madhubala, R. ; Reddy, P. R. K. (1982) Stimulation of ornithine decarboxylase activity by luteinizing hormone releasing hormone in the testis of immature rat Biochemical and Biophysical Research Communications, 109 (1). pp. 269-274. ISSN 0006-291X

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Official URL: http://linkinghub.elsevier.com/retrieve/pii/000629...

Related URL: http://dx.doi.org/10.1016/0006-291X(82)91595-9

Abstract

The activity of ornithine decarboxylase (ODC) was found to increase in the testis of immature rats following intratesticular injection with luteinizing hormone releasing hormone (LHRH). Maximal stimulation of ODC activity occurred with 1 µg of the hormone at 2 h. The enzyme activity returned to control levels at 4 h. The minimal effective dose was found to be 0.1 µg per testis. The stimulating effect of LHRH was confined to Leydig cells alone. The seminiferous tubules did not show any change in ODC activity following LHRH treatment. These results show that LHRH acts directly on the testis and influences the levels of ODC in the Leydig cells of rat.

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ID Code:29864
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