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


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Uysal Harzadın N., Sisman A., Dayı A., Özbal S., Cetin F., Baykara B., ...Daha Fazla

NEUROSCIENCE LETTERS, cilt.514, sa.2, ss.141-146, 2012 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 514 Sayı: 2
  • Basım Tarihi: 2012
  • Doi Numarası: 10.1016/j.neulet.2012.02.049
  • Dergi Adı: NEUROSCIENCE LETTERS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.141-146
  • Anahtar Kelimeler: Acute-stress, Footshock, Hippocampus, Learning and memory, Adolescent, BDNF, VEGF, ENDOTHELIAL GROWTH-FACTOR, NEUROTROPHIC FACTOR BDNF, WATER-MAZE, PREFRONTAL CORTEX, ENZYME-ACTIVITIES, PREDATOR STRESS, MILD STRESS, ADULT RATS, BRAIN, MODEL
  • Dokuz Eylül Üniversitesi Adresli: Evet

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.