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Effects of short- and long-term (-)-deprenyl administration on mRNA for copper, zinc- and manganese-superoxide dismutase and glutathione peroxidase in rat brain

Kunikowska, Grazyna and Gallagher, Imelda and Glover, Vivette and Clow, Angela and Jenner, Peter (2002) Effects of short- and long-term (-)-deprenyl administration on mRNA for copper, zinc- and manganese-superoxide dismutase and glutathione peroxidase in rat brain. Brain Research, 953 (1-2). pp. 1-11. ISSN 0006-8993

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Official URL: http://dx.doi.org/10.1016/S0006-8993(02)03187-6

Abstract

The effect of short-term (3 weeks, 2 mg/kg day) and long-term (12 and 20 months, 0.5 mg/kg day) administration of (-)-deprenyl on the mRNA expression of three neuroprotective enzymes in subdivisions of rat basal ganglia was investigated. In situ hybridisation histochemistry with oligodeoxynucleotide probes was used to measure levels of copper, zinc superoxide dismutase (Cu,Zn-SOD), manganese superoxide dismutase (Mn-SOD), and glutathione peroxidase (GPX) mRNA. The 3-week administration of (-)-deprenyl caused a significant increase in Cu,Zn-SOD mRNA in the nucleus accumbens (NA) (P<0.05), striatum (CP) (P<0.01), and globus pallidus (GP) (P<0.05), but had no effect on Mn-SOD or GPX mRNA levels throughout basal ganglia. In rats which received (-)-deprenyl for 12 months, there was a significant increase in Mn-SOD mRNA in the NA, CP, GP, and substantia nigra (SN) (all P<0.05); there were no changes in either Cu,Zn-SOD or GPX mRNA. Except for the significant increase in Cu,Zn-SOD mRNA in SN pars compacta (SC) (P<0.05), by 20 months there were almost no differences between (-)-deprenyl-treated and age-matched control animals that had received equivalent injections of saline. We conclude that (-)-deprenyl administration can induce mRNA expression for both forms of SOD, but the effects are variable and not sustained over 20 months.

Item Type:Article
Additional Information:Online ISSN 0165-3806
Uncontrolled Keywords:Deprenyl, Selegiline, Superoxide dismutase, Glutathione peroxidase, mRNA, Parkinson's disease
Research Community:University of Westminster > Social Sciences, Humanities and Languages, School of
ID Code:151
Deposited On:25 Nov 2005
Last Modified:04 Nov 2009 14:43

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