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THE EFFECT OF LESION OF NUCLEUS VENTROMEDIALIS HYPOTHALAMI ON NEUROGENESIS IN ADULT RING DOVES

ZOU MING-XUE

Department of Biology, Beijing Normal University, Beijing 100875)

Abstract

In the present study the effects of lesion hypothalami ventromedialis nucleus(VMN) of ring dove (Stmeptopeha Risaria) on neurogenesis regarding the lesion-induced change of distribution of proliferating cells in the lateral ventricular zone (LVZ) and new neurons in the non-ventricular zone (VZ) were studied by using [3H] thymidineautoradiographic and immunohistochemistry methods. The results showed that such 1& sion not only induced significant increase of neurogenesis in telencephalon (up to,1. 62times of that of the intact doves)，but also altered distribution patterns of the newborn
neurons. Many of the new neurons confined in neostriatum medialis and pars caudalis of telencephalon，where the rate of neurogenesis in intact dove is very low. Such kinds of neurogenesis in the birds with brain lesions may be region-dependent and somewhat underlie brain repair and alteration of endocrine function after brain injury.

Key words: ring dove;nueleus ventromedialis hypothalami;brain lesion; neurogenesis

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Citing This Article：

ZOU MING-XUE. THE EFFECT OF LESION OF NUCLEUS VENTROMEDIALIS HYPOTHALAMI ON NEUROGENESIS IN ADULT RING DOVES. Acta Physiol Sin 1996; 48 (3): (in Chinese with English abstract).