The biphasic changes in splenic natural killer cell activity following ventromedial hypothalamic lesions in rats

Toshihiko Katafuchi, Eiichiro Okada, Sachiko Take, Tetsuro Hori

研究成果: Contribution to journalArticle

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The cytotoxic activity of natural killer (NK) cells in the spleen was measured by a standard 4-h chromium release assay following electrical lesioning of the ventromedial hypothalamic nucleus (VMH) in rats. The splenic NK cell activity of VMH lesioned rats was found to be significantly suppressed at effector: target cell ratios of 100:1 and 50:1 compared with that of sham lesioned rats on day 4 after the lesion. On the other hand, on day 49, the VMH lesioned animals that had become hyperphagic and obese showed an enhancement of splenic NK cell activity compared with sham lesioned animals. The mechanisms of the biphasic change in NK cell activity following the VMH lesions are discussed.

元の言語英語
ページ(範囲)164-168
ページ数5
ジャーナルBrain Research
652
発行部数1
DOI
出版物ステータス出版済み - 7 25 1994

All Science Journal Classification (ASJC) codes

  • Neuroscience(all)
  • Molecular Biology
  • Clinical Neurology
  • Developmental Biology

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