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Title: Neuroprotective effect of BDNF in young and aged 6-OHDA treated rat model of Parkinson disease
Authors: Singh, Shalini
Ahmad, Riyaz
Mathur, Deepti
Sagar, Ravinder Kumar
Krishana, Bal
Arora, Rajesh
Sharma, Rakesh Kumar
Keywords: Brain derived neurotrophic factor
Parkinson disease
Issue Date: Sep-2006
Publisher: CSIR
Abstract: Brain derived neurotrophic factor (BDNF) has been shown to exert trophic effects on dopaminergic neurons against 6-hydroxydopamine (6-OHDA) in young rat. Since the degeneration of substantia nigra dopaminergic neurons that occurs in Parkinson’s disease is more often than not confined to elderly individuals, it is of interest to determine whether the effects of BDNF against 6 hydroxydopamine (6-OHDA) in young rats can be extended to aged animals. 6-hydroxydopamine was stereotaxically injected into the striatum of young (3-months) and aged (24-months) rats, which were treated two hours earlier with BDNF. 6-OHDA results in almost complete destruction of substantia nigra pars compacta dopaminergic neurons. BDNF injection significantly changed apomorphine induced rotations from 132 ± 15 to 181 ± 10, staircase test from 73 ± 2% to 61 ± 3%, initiation time from 7 ± 2  to 12 ± 1 sec, and disengage time from 80 ± 7  to 90 ± 5 sec in young and aged animals, respectively. It is concluded that BDNF causes the limited behavior recovery of striatal DA systems from 6-OHDA toxicity in aged animals.
Page(s): 699-704
ISSN: 0975-1009 (Online); 0019-5189 (Print)
Source:IJEB Vol.44(09) [September 2006]

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