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Animal Reproduction and Physiology
Asian-Australasian Journal of Animal Sciences 1999;12(7): 1031-1034.
DOI: https://doi.org/10.5713/ajas.1999.1031    Published online November 1, 1999.
In Vitro Studies on the Release of Intracelluar Prolactin from Lymphocytes Using Strees Related Amines and Hormones
G. Taru Sharma, A. C. Majumdar, L. K. Gupta
Abstract
Circulating lymphocytes collected from control and heat-stressed buffaloes were subjected to in vitro culture with glucocorticoids, epinephrine or serotonin and their effect, if any, on the release of intracellular prolactin (PRL) was studied using ELISA and C-ELISA techniques. It was noted from the study that PRL level was higher in lymphocytes than in plasma of the control and heat-stressed animals, and that the PRL levels increased in the plasma of heat-stressed animals compared to that of non stressed animals with a significant decrease in lymphocytic PRL content by heat stress. Epinephrine and serotonin significantly increased the release of intracellular PRL from the lymphocytes of both in the control and the heat-stressed buffaloes but release of PRL from lymphocyte was not significantly changed by cortisol treatment in both control and heat-stressed buffaloes as compared to epinephrine and serotonin in vitro. When lympocytes were incubated with serotonin, it caused drastic lysis of the lymphocytes but epinephrine or serotonin known to increase during stress, release intracellular PRL from lymphocytes, the satellite PRL storage/synthesizing organ of blood, although the mechanism of the release is different.
Keywords: Buffalo; Serotonin; Epinephrine; Prolactin; Lymphocytes; In Vitro
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