Journal of Veterinary Medical Science
Online ISSN : 1347-7439
Print ISSN : 0916-7250
Anatomy
Reduced Immunoreactivity of Tyrosine Hydroxylase in the Hypothalamic Paraventricular Nucleus of the Seizure Sensitive Gerbil
Choong Hyun LEEJung Hoon CHOIDae Won CHUNGIn Koo HWANGYeo Sung YOONMoo-Ho WONIn Se LEE
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2008 Volume 70 Issue 6 Pages 645-648

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Abstract

We compared the immunoreactivity and numbers of tyrosine hydroxylase (TH) immunoreactive neurons and neuropil in the paraventricular nucleus (PVN) of the hypothalamus between the seizure sensitive (SS) and seizure resistant (SR) gerbils. The distributional pattern of TH immunoreactivity was similar in both groups: TH immunoreactivity was seen mainly in magnocellular neurons of the PVN. However, total TH immunoreactivity in the neurons and neuropil in the SS gerbils was significantly lower than that in the SR gerbils. In addition, the number of TH immunoreactive neurons in the SS gerbils was also much lower than those in the SR gerbils. These results indicate that SS gerbils have a low TH immunoreactivity in the hypothalamic PVN compared with that in SR gerbils.

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