Ameliorating effect of dimethylsulfoniopropionate on the 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine-induced Parkinson's disease of mice

Journal of Nutritional Science and Vitaminology
Kenji Nakajima, Masaharu Minematsu

Abstract

The effect of dimethylsulfoniopropionate (DMSP) on the 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine-induced Parkinson's disease (PD) of mice was examined for 5 d. The distilled water (the control group) and the DMSP solution at 5 x 10(-4) M (the DMSP group) were supplemented ad libitum to six mice each in two groups for 2 wk. An appropriate amount of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) solution (20 mg/kg body wt) was then intraperitoneally injected into all the test mice once a day initially for 3 d, which definitely made the control mice similar to the PD-model mice. The moving ability (running power) of the mice in both groups was measured using an automatic Wheel Running Instrument. The immobility duration of the upside-down mice in both groups was estimated by a newly developed polygraph (RMP-6008M, Nihon Koden Co., Ltd., Japan). The results indicated that the mice in the DMSP group showed a stronger moving ability and a shorter immobility duration compared to the mice in the control group during the experimental period. Furthermore, the amounts of catecholamines (dopamine and norepinephrine) in the brains except for the cerebellums of all the test mice were estimated 2 d after the last MPTP injection, which...Continue Reading

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