Summary
bTSH augmented the fish thyroid peroxidase activity in a dose-response manner. Thyroxine could not modulate the effect of exogenous bTSH, but it decreased the peroxidase activity in a control system when administered alone. The data therefore suggest similar negative feedback control system for TSH-regulation as operative in the case of mammals.
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Acknowledgment. We are thankful to Prof. A. B. Das, Head of the Department of Zoology, Visva-Bharati University, Santiniketan, for providing laboratory facility. We are greatly indebted to Dr A. G. Dutta for his kind gift of bovine TSH (NIH-B5).
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Chakraborti, P., Bhattacharya, S. Bovine TSH-stimulation of fish thyroid peroxidase activity and role of thyroxine thereon. Experientia 34, 136–137 (1978). https://doi.org/10.1007/BF01921948
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DOI: https://doi.org/10.1007/BF01921948