Postnatal neurogenesis in the rat hypothalamus.
Neurogenesis of the rat hypothalamus was studied with the [3H]thymidine autoradiography method during the first postnatal month. In the parvicellular hypothalamic nuclei a low rate (1%) of neurogenesis could be observed during the first postnatal week, but not later. There was no sign of neuron formation in the magnocellular cell groups. A number of glial cells were labeled throughout the first month in all hypothalamic nuclei at a decreasing rate. Therefore, birth is not a sharp dividing line in the neurogenesis of the hypothalamus in the rat.
D000818:Animals; D000831:Animals, Newborn; D007031:Hypothalamus / Q000166:cytology / Q000254:growth & development*; D008938:Mitosis; D051381:Rats; D011919:Rats, Inbred Strains