First Author | Durairajan SSK | Year | 2017 |
Journal | Sci Rep | Volume | 7 |
Issue | 1 | Pages | 6238 |
PubMed ID | 28740171 | Mgi Jnum | J:249725 |
Mgi Id | MGI:5926273 | Doi | 10.1038/s41598-017-06217-9 |
Citation | Durairajan SSK, et al. (2017) A modified formulation of Huanglian-Jie-Du-Tang reduces memory impairments and beta-amyloid plaques in a triple transgenic mouse model of Alzheimer's disease. Sci Rep 7(1):6238 |
abstractText | Alzheimer's disease (AD) is a degenerative disorder typified by progressive deterioration of memory and the appearance of beta-amyloid peptide (Abeta)-rich senile plaques. Recently we have identified a novel function of a patented formulation of modified Huanglian-Jie-Tu-Tang (HLJDT-M), a Chinese herbal medicine, in treating AD in in vitro studies (US patent No. 9,375,457). HLJDT-M is a formulation composed of Rhizoma Coptitis, Cortex Phellodendri and Fructus Gardeniae without Radix Scutellariae. Here, we assessed the efficacy of HLJDT-M on a triple transgenic mouse model of AD (3XTg-AD). Oral administration of HLJDT-M ameliorated the cognitive dysfunction of 3XTg-AD mice and lessened the plaque burden. In addition, biochemical assays revealed a significant decrease in levels of detergent-soluble and acid-soluble Abeta via decreasing the levels of full length amyloid-beta precursor protein (FL-APP) and C-terminal fragments of APP (CTFs) in brain lysates of HLJDT-M-treated mice. HLJDT-M treatment also significantly reduced the levels of FL-APP and CTFs in N2a/SweAPP cells. In contrast, treatment using the classical formula HLJDT did not reduce the memory impairment of 3XTg-AD mice and, rather, increased the Abeta/Fl-APP/CTFs in both animal and cell culture studies. Altogether, our study indicates that HLJDT-M is a promising herbal formulation to prevent and/or cure AD. |