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Ultrastructure of neurons in the hypothalamic suprachiasmatic nucleus of rats with different stress reactivity

  • Morphology and Pathomorphology
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Bulletin of Experimental Biology and Medicine Aims and scope

Abstract

The rats were divided into groups demonstrating extremely high and low stress reactivity depending on the results of testing for the nociceptive threshold and thermolability in response to bacterial lipopolysaccharide administration. Specific structural features of the nucleus and mitochondria were revealed in neurons of the hypothalamic suprachiasmatic nucleus in rats with constitutionally high reactivity, which reflects high functional activity and stress-induced lability of these structures. Ultramicroscopic study revealed phenotypic differences in one of the key hypothalamic nucleus, which enables potent and rapid neurogenic response of the stress system in animals with high stress reactivity.

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Authors and Affiliations

  1. Volgograd State Medical University, Russian Ministry of Health, Russia

    M. B. Potanin & V. B. Pisarev

  2. Russian State Medical University, Russian Ministry of Health, Russia

    V. P. Tumanov

Authors
  1. M. B. Potanin
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  2. V. P. Tumanov
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  3. V. B. Pisarev
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Translated from Byulleten’ Eksperimental’noi Biologii i Meditsiny, Vol. 144, No. 11, pp. 578–581, November, 2007

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Potanin, M.B., Tumanov, V.P. & Pisarev, V.B. Ultrastructure of neurons in the hypothalamic suprachiasmatic nucleus of rats with different stress reactivity. Bull Exp Biol Med 144, 734–736 (2007). https://doi.org/10.1007/s10517-007-0419-x

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  • DOI: https://doi.org/10.1007/s10517-007-0419-x

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