The transport of human aI-acid glycoprotein from the circulation to the bile has been studied in the rat. Biliary excretion was proportional to the i.v. injected dose, and the percentage excreted remained constant. The amount excreted in the bile (over 4 hr) was inversely related to the rate of hepa
Exercise enhances hippocampal-dependent learning in the rat: Evidence for a BDNF-related mechanism
✍ Scribed by Éadaoin W. Griffin; Ranya G. Bechara; Amy M. Birch; Áine M. Kelly
- Publisher
- John Wiley and Sons
- Year
- 2009
- Tongue
- English
- Weight
- 247 KB
- Volume
- 19
- Category
- Article
- ISSN
- 1050-9631
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
Short periods of forced exercise have been reported to selectively induce enhancements in hippocampal‐dependent cognitive function, possibly via brain‐derived neurotrophic factor (BDNF)‐mediated mechanisms. In this study, we report that 1 week of treadmill running significantly enhanced both object displacement (spatial) and object substitution (nonspatial) learning. These behavioral changes were accompanied by increased expression of BDNF protein in the dentate gyrus, hippocampus, and perirhinal cortex. The effects of exercise on object substitution were mimicked by intracerebroventricular injection of BDNF protein. These data are consistent with the hypothesis that exercise has the potential to enhance cognitive function in young healthy rats, possibly via a mechanism involving increased BDNF expression in specific brain regions. © 2009 Wiley‐Liss, Inc.
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