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Abstract ▼ AI-Helper

Dopamine ${\beta}-hydroxylase\;(DBH)$ catalyses the enzymatic reaction of dopamine to norepinephrine. For the purpose of screening DBH inhibitory activity from edible mushrooms, Ganoderma lucidum, Agaricus bisporus and Lentinus edodes were examined by tracing inhibitory activities against...

Dopamine ${\beta}-hydroxylase\;(DBH)$ catalyses the enzymatic reaction of dopamine to norepinephrine. For the purpose of screening DBH inhibitory activity from edible mushrooms, Ganoderma lucidum, Agaricus bisporus and Lentinus edodes were examined by tracing inhibitory activities against bovine adrenal DBH, utilizing tyramine as a substrate. Among the three edible mushrooms tested, Ganoderma lucidum showed potent enzyme inhibitory activilies above 100% against DBH in chloroform fraction. Lentinus edodes and Agaricus bisporus showed inhibitory activities in ethylacetate fraction on 79.7% and 64.7%, respectively. Each solvent fraction of these mushrooms were assessed in the aspects of their inhibitory activities against DBH, and their $IC_{50}$ values were calculated. $IC_{50}$ value of chloroform fraction of Ganoderma lucidum was $1.60{\times}10^{-4}\;g$, and those of ethylacetate fractions of Agaricus bisporus and Lentinus edodes were $5.50{\times}10^{-4}\;g\;and\;2.35{\times}10^{-4}\;g$, respectively.

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