COMT-inhibitor;
folate;
homocysteine;
levodopa;
movement disorder;
nitrous oxide;
D O I:
10.1016/j.parkreldis.2006.11.005
中图分类号:
R74 [神经病学与精神病学];
学科分类号:
摘要:
Background: This study investigated whether brief exposure to nitrous oxide (N2O) exacerbates levodopa-induced hyperhomocysteinemia, and if co-treatment with folate or entacapone could reduce total plasma homocysteine (tHcy) levels. Methods: Male Wistar rats (n = 9 per group) were randomly treated with vehicle/N2O (group 1), levodopa/nitrogen (group 2), levodopa/N2O (group 3), levodopa/N2O + folate (group 4), or levodopa/N2O + entacapone (group 5). tHcy was measured at 12 min, 4, 8, and 12 h after anesthesia. Results and conclusion: The combination of N2O-exposure and levodopa treatment significantly increased tHcy in rats. This hyperhomocysteinemia, could be prevented by entacapone but not folate co-administration. (c) 2006 Elsevier Ltd. All rights reserved.