Abstract Title:

The effect of epigallocatechin gallate on suppressing disease progression of ALS model mice.

Abstract Source:

Biomed Res. 2007 Oct;28(5):261-6. PMID: 16356650

Abstract Author(s):

Seong-Ho Koh, Sang Mok Lee, Hyun Young Kim, Kyu-Yong Lee, Young Joo Lee, Hee-Tae Kim, Juhan Kim, Myung-Ho Kim, Myung Sil Hwang, Chiwon Song, Ki-Wha Yang, Kwang Woo Lee, Seung Hyun Kim, Ok-Hee Kim


Epigallocatechin gallate (EGCG) is a constituent of green tea, and increasing evidence suggests that EGCG has neuroprotective effects on oxidative stress-injured neuronal cells, especially motoneurons. Although the neuroprotective effects of EGCG have been demonstrated in Parkinson's and Alzheimer's diseases and ischemic stroke models, there has been no report on the effect of EGCG on an in vivo model of amyotrophic lateral sclerosis (ALS). This study was undertaken to evaluate the effect of EGCG on ALS model mice with the human G93A mutated Cu/Zn-superoxide dismutase (SOD1) gene. We treated each group of 11 ALS model mice with EGCG (1.5, 2.9, and 5.8 microg/g body weight), dissolved in 0.5 ml of 0.9% sterile NaCl, and one group of 11 with 0.5 ml of 0.9% sterile NaCl (control group) intraorally every day after 60 days of age (presymptomatic treatment). The treatment of more than 2.9 microg EGCG/g body weight significantly prolonged the symptom onset and life span, preserved more survival signals, and attenuated death signals. These data suggest that EGCG could be a potential therapeutic candidate for ALS as a disease-modifying agent.

Study Type : Animal Study

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Sayer Ji
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