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. 1977 Dec;86(4):758-62.
doi: 10.1530/acta.0.0860758.

Effects of blinding, pinealectomy and superior cervical ganglionectomy on free thyroxine index of male golden hamsters

J Vriend, J W Sackman, R J Reiter

Effects of blinding, pinealectomy and superior cervical ganglionectomy on free thyroxine index of male golden hamsters

J Vriend et al. Acta Endocrinol (Copenh). 1977 Dec.

Abstract

Blinding young male golden hamsters led to a depression of the plasma free thyroxine index after an 8 week period. Removal of either the pineal gland or the superior cervical ganglia of blind hamsters reversed the effects of blinding on free thyroxine index. No significant effects were observed 2 weeks after treatment. Previously reported effects of blinking, and removal of the pineal gland or the superior cervical ganglia on testicular weight were confirmed. A similar mechanism of pineal inhibition of thyroid function and gonadal function is suggested.

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