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Early and Long-Term Neuroendocrine Effects of Prenatal Stress in Male and Female Rats

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Abstract

The effects of maternal stress, termed prenatal stress (PNS) on the neuroendocrine regulation of reproduction and the stress reactivity of offspring were studied in rats. PNS prevented the formation of sexual dimorphism in catecholamine levels, aromatase activity, and androgen 5α-reductase activity in the preoptic area of the brain and the mediobasal hypothalamus in 10-day-old rats. The morphological correlate of the functional lesions induced by PNS consisted of the elimination of gender-related differences in the volumes of neuron nuclei in the suprachiasmatic nucleus. Prenatal stress altered the stressand adrenergic reactivities of the hypothalamo-hypophyseal-adrenal system in mature males and females. The long-term effects of PNS were regarded as a consequence of the disruption of the hormone-neurotransmitter imprinting of the neuroendocrine system.

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Authors and Affiliations

  1. Department of Reproductive and Adaptive Endocrinology, Ukraine

    A. G. Reznikov (V. P), N. D. Nosenko, L. V. Tarasenko, P. V. Sinitsyn & L. I. Polyakova

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  1. A. G. Reznikov
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  2. N. D. Nosenko
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  3. L. V. Tarasenko
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  4. P. V. Sinitsyn
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  5. L. I. Polyakova
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(Director: Corresponding Member of the Ukrainian National Academy of Sciences and the Ukrainian Academy of Medical Sciences A. G. Reznikov)

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Reznikov, A.G., Nosenko, N.D., Tarasenko, L.V. et al. Early and Long-Term Neuroendocrine Effects of Prenatal Stress in Male and Female Rats. Neurosci Behav Physiol 31, 1–5 (2001). https://doi.org/10.1023/A:1026623427246

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