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Abstract Title:

Hericium erinaceus suppresses LPS-induced pro-inflammation gene activation in RAW264.7 macrophages.

Abstract Source:

Immunopharmacol Immunotoxicol. 2011 Nov 29. Epub 2011 Nov 29. PMID: 22126451

Abstract Author(s):

Young-Ock Kim, Sang-Won Lee, Chung-Hun Oh, Yun-Hee Rhee

Article Affiliation:

Medicinal Crops Division, Ginseng and Medicinal Plants Research Institute Rural Development Administration , Eumseong , Republic of Korea.

Abstract:

The aim of this study was to investigate the anti-inflammatory properties of each fraction of Hericium erinaceus (HE). The ethanol extract from HE was partitioned with different solvents in the order of increasing polarity. The treatment with 10-100μg/mL of each fraction did not reduce RAW 264.7 cell viability except ethyl acetate fraction. Among the various extracts, the chloroform fraction showed the most potent activity against nitric oxide (NO), prostaglandin E(2) (PGE(2)) and reactive oxygen species (ROS). The western blotting and reverse transcriptase polymerase chain reaction (RT-PCR) analyses revealed that chloroform fraction from HE (CHE) significantly reduced the protein level of iNOS and cyclooxygenase-2 (COX-2) or mRNA levels of iNOS in lipopolysaccharide-induced macrophages. Furthermore, CHE inhibited the translocation of nuclear factor (NF)-κB p65 subunit, phsophorylation of I-κB, extracellular signal-regulated kinase (ERK), and c-Jun N-terminal kinase (JNK) in a dose-dependent manner. Furthermore, the activation of both activator protein-1 (AP-1) and NF κB in the nucleus were abrogated by CHE with luciferase assay. In conclusion, these results indicate that CHE may provide an anti-inflammatory effect by attenuating the generation of excessive NO, PGE(2), and ROS and by suppressing the expression of pro-inflammatory genes through the inhibition of NF-κB and JNK activity.

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Sayer Ji
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Easy Turmeric recipes + The Dark Side of Wheat

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