The effects of intranasal infusion of

The effects of intranasal infusion of

Dluzen D E; Kefalas G

Brain research

1996

1996-11

Male C57/B1 mice received bilateral intranasal infusions of saline, MPTP or an intraperitoneal injection of MPTP. Infusions were performed using a peristaltic pump at a setting of 100 microliters/min. The MPTP, diluted in saline at concentrations of 2 mg/ml, was infused over 15 (0.1 mg) or 30 (0.2 mg) s, while the saline (control) infusions were of 30 s duration. In a separate group of mice, MPTP was injected via the intraperitoneal route at a dose equivalent to that of the 30-s intranasal concentration (0.2 mg). At 7 days post-treatment, catecholamine concentrations were determined from the olfactory bulbs and corpus striatum. Concentrations of norepinephrine within both the olfactory bulbs and corpus striatum of mice receiving the intranasal infusion of MPTP were significantly lower than those of the intranasal saline and intraperitoneal

Male; Animals; Mice; Corpus Striatum/drug effects/*metabolism; Dopamine/metabolism; Olfactory Bulb/drug effects/*metabolism; Norepinephrine/metabolism; Injections; Catecholamines/*metabolism; Dopamine Agents/administration & dosage/*pharmacology; Inbred C57BL; 3; Intraperitoneal; 1-Methyl-4-phenyl-1; 2; Administration; Intranasal; 6-tetrahydropyridine/administration & dosage/*pharmacology

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