Effects of Lentinus edodes-powder on Serum Homocysteine Level and Homocysteine-induced Replicative Senescence
2007
Park, Y.C. (Catholic University of Daegu, Gyungsan, Republic of Korea) | Kim, M.H. (Catholic University of Daegu, Gyungsan, Republic of Korea) | Kim, J.B. (Catholic University of Daegu, Gyungsan, Republic of Korea), E-mail: [email protected]
Elevated blood levels of homocysteine (a sulfur-containing amino acid) have been linked to increased risk of cerebrovascular disease including Alzheimer's disease. A recent study suggests that elevated homocysteine levels may lead to replicative senescence in vitro called "permanent arrest of cell cycle" caused by oxidative stress. In this study, serum homocysteine level in rat was reduced by Lentinus edodes-powder diet, resulting in the reduced level of oxidative stress in rat brain. In addition, homocysteine-induced replicative senescence treated with or without Lentinus edodes-powder was analyzed by population doubling in vitro. The Lentinus edodes-powder induced a increased number of population doubling in primary neuron cell isolated from rat-cerebral cortex. This indicates that Lentinus edodes-powder would delay a homocysteine-induced aging of neuron cells in brain, showing a possible role in preventing cerebrovascular diseases including Alzheimer's disease.
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