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Oriental medicine Jangwonhwan reduces Abeta(1-42) level and beta-amyloid deposition in the brain of Tg-APPswe/PS1dE9 mouse model of Alzheimer disease.

Journal of ethnopharmacology (2010-01-19)
Ji-Seon Seo, Jong-Hyun Yun, In-Sun Baek, Yeo-Hyun Leem, Hyung-Won Kang, Hyoung Kwon Cho, Yeoung-Su Lyu, Hyung-Jin Son, Pyung-Lim Han
ABSTRACT

Jangwonhwan, a boiled extract of 12 medicinal plants/mushroom including Korean red ginseng (Panax ginseng C.A. Meyer), has been prescribed for patients with cognitive dysfunction and are believed to induce brain activity enhancement, provide light sedation, and facilitate sound sleep. The present study was carried out to investigate whether Jangwonhwan has a beneficial effect on the brain of Alzheimer disease. The transgenic mice of Alzheimer disease, Tg-APPswe/PS1dE9, were fed a modified recipe of Jangwonhwan consisting of a boiled extract of 7 herbs/mushroom (called LMK02-Jangwonhwan) at 400mg/kg/day of dose for 3 months from 4.5 months of age. Immunohistological and ELISA analyses were used to assess the Abeta accumulation and plaque deposition in the brain. Other in vitro and in vivo works were performed to understand the underlying mechanism. LMK02-Jangwonhwan notably reduced Abeta(1-42) and Abeta(1-40) levels, concomitantly with a reduction of plaque deposition, in the brain of Tg-APPswe/PS1dE9 mice. LMK02-Jangwonhwan partially suppressed oxidative stress accumulation, and prevented the down-regulation of phospho-CREB and calbindin typically seen in the hippocampus of AD-like brains. In vitro study with SH-SY5Y neuroblastoma cells showed that LMK02-Jangwonhwan inhibited oxidative stress and Abeta-induced neurotoxicity. The present study suggests that LMK02-Jangwonhwan confers a therapeutic potential to ameliorate AD-like pathology in the brain of Tg-APPswe/PS1dE9 mice.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Anti-phospho-CREB (Ser133) Antibody, Upstate®, from rabbit
Sigma-Aldrich
Monoclonal Anti-β-Amyloid antibody produced in mouse, clone BAM-10, ascites fluid

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