Abstract
This experiment was designed to study the effect of optic nerve denervation on lens regeneration. Adult newts, Triturus viridescens, were divided into 4 groups: A) lentectomized newts, which served as controls, B) lentectomized newts with the optic nerve exposed and lightly palpated, C) newts with lens removed and the optic nerve cut simultaneously, and D) newts with lens removed first and optic nerve cut 7 days and 14 days later. Control animals required about 21 days to produce a new lens, and animals in group B demonstrated the same regeneration rate. In groups C and D, the regeneration rate was greatly retarded during the first 14 days. However, most of these animals regenerated a perfect new lens by 21 days postlentectomy.
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