Acute footshock-stress increases spatial learning-memory and correlates to increased hippocampal BDNF and VEGF and cell numbers in adolescent male and female rats


Uysal N., Sisman A. R. , Dayi A., Ozbal S., Cetin F. , Baykara B., et al.

NEUROSCIENCE LETTERS, cilt.514, ss.141-146, 2012 (SCI İndekslerine Giren Dergi)

  • Cilt numarası: 514 Konu: 2
  • Basım Tarihi: 2012
  • Doi Numarası: 10.1016/j.neulet.2012.02.049
  • Dergi Adı: NEUROSCIENCE LETTERS
  • Sayfa Sayısı: ss.141-146

Özet

It is well known that the acute-stress enhances cognitive functions in adults, but is not known in adolescents. The purpose of this study is to investigate the effects of low and high intensities of acute-stress on hippocampus and spatial memory in the adolescent male and female rats. Thirty-eight days aged rats were subjected to 0.2 and 1.6 mA intensity of footshock-stress for 20 min. Spatial memory performance was assessed in the Morris water maze. Learning had been positively affected in stress groups. Neuron density in the CA1 hippocampal region and the gyrus dentatus as well as VEGF and BDNF levels of hippocampus increased in all stress groups. In females, learning process and BDNF levels increased in low-intensity-stress group than high-intensity-stress group. There was no difference in hippocampal apoptosis among groups.