期刊
MOVEMENT DISORDERS
卷 22, 期 10, 页码 1495-1498出版社
WILEY-LISS
DOI: 10.1002/mds.21542
关键词
bright light therapy; Parkinson's disease; depression; melatonin; tremor
Several observations suggest a beneficial effect of melatonin antagonism for Parkinson's disease (PD). Although bright light therapy (BLT) suppresses melatonin release and is an established treatment for depression and sleep disturbances, it has not been evaluated in PD. We examined effects of BLT on motor symptoms, depression, and sleep in PD in a randomized placebo-controlled double-blind study in 36 PD patients, using Parkinson's Disease Rating Scale (UPDRS) I-IV, Beck's Depression Inventory, and Epworth Sleepiness Scale. All patients received BLT for 15 days in the morning, 30 min daily. Illuminance was 7.500 lux in the active treatment group and 950 lux in the placebo group. Although group differences were small, BLT led to significant improvement of tremor, UPDRS 1, 11, and IV, and depression in the active treatment group but not in the placebo group. It was very well tolerated. Follow up studies in more advanced patient populations employing longer treatment durations are warranted. (c) 2007 Movement Disorder Society.
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