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Title: 1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) reduces norepinephrine concentrations in the olfactory bulbs of male mice. Author: Dluzen DE. Journal: Brain Res; 1992 Jul 17; 586(1):144-7. PubMed ID: 1511343. Abstract: Male retired breeder C57/Bl and CD-1 mice were treated with either MPTP or its vehicle. At 7-10 days post-treatment, catecholamine concentrations within the olfactory bulbs (OB) and hypothalamus were determined. Norepinephrine concentrations within the OB were significantly decreased in MPTP-treated mice. These effects were more pronounced in the CD-1 (50% reduction) compared to the C57/Bl (20% reduction) strain. No effects of MPTP were observed on norepinephrine concentrations within the hypothalamus. Dopamine concentrations in the OB and hypothalamus did not differ between MPTP- and vehicle-treated mice in either strain. Overall, catecholamine concentrations within the OB, but not the hypothalamus, were significantly greater in C57/Bl compared to CD-1 mice. The reduction in OB norepinephrine concentration in the MPTP-treated animals may be related to the olfactory deficits which accompany Parkinson's disease.[Abstract] [Full Text] [Related] [New Search]