Russian Journal of Developmental Biology

, Volume 36, Issue 1, pp 54–56 | Cite as

The effects of sex and neonatal androgenization on neuron dendroarchitectonics in amygdala posterior cortical nucleus

  • A. V. Akhmadeev
  • L. B. Kalimullina
Brief Communications


Sex differences in neuron dendroarchitectonics of the amygdala posterior cortical nucleus of adult rats were described for the first time using the Golgi method. Long-axon sparse-branched neurons in male rats possessed a larger number of primary dendrites, while female rats had long-axon dense-branched neurons with longer dendrites. Injection of testosterone propionate at 1250 µg to females on day 5 after birth resulted in a greater number of primary dendrites of long-axon sparse branched neurons in adults, as compared to that in the control. Dendrites of long-axon sparse-branched neurons became much longer, thus enlarging the dendrite area.

Key words

sex steroids sexual differentiation of brain neuronal organization amygdale 


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Copyright information

© MAIK “Nauka/Interperiodica” 2005

Authors and Affiliations

  • A. V. Akhmadeev
    • 1
  • L. B. Kalimullina
    • 1
  1. 1.Bashkir State UniversityUfaRussia

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