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Shengmai Formula Ameliorates Pathological Characteristics in AD C. elegans
Weimin Zhang1, Dejuan Zhi1, Hui Ren1
1Gansu High Throughput Screening and Creation Center for Health Products, School of Pharmacy, Lanzhou University, No. 199, Donggang West Road, Lanzhou, 730000, China.
Cellular and Molecular Neurobiology
|February 18, 2016
Summary
Shengmai (SM) formula, a traditional Chinese medicine, effectively treats Alzheimer's disease (AD) symptoms in C. elegans by reducing amyloid-beta deposits and improving paralysis. The Panax ginseng, Ophiopogon japonicus, and Schisandra Chinesis combination shows significant therapeutic potential.
Area of Science:
- Pharmacology
- Neuroscience
- Traditional Chinese Medicine
Background:
- Shengmai (SM) formula, a traditional Chinese medicine, is used for cardiovascular conditions.
- Previous research suggests SM formula may combat Alzheimer's disease (AD).
- Gaps exist in understanding SM formula's efficacy and mechanisms for AD at an organism level.
Purpose of the Study:
- To evaluate the efficacy of SM formula in treating AD phenotypes.
- To investigate the underlying mechanisms of SM formula in an AD model.
- To determine optimal herb proportions and dosage for SM formula in AD treatment.
Main Methods:
- Utilized transgenic Caenorhabditis elegans expressing human amyloid-beta (Aβ) 1-42.
- Assessed SM formula's impact on AD pathological characteristics like paralysis and chemotaxis defects.
- Analyzed changes in Aβ deposits and gene expression levels (hsp16-2, hsp16-41, ace-1, ace-2, TNFA1P1 homolog).
Main Results:
- SM formula ameliorated paralysis and chemotaxis defects in AD model worms.
- Reduced Aβ deposits and down-regulated specific gene expressions (hsp16-2, hsp16-41, ace-1, ace-2, TNFA1P1 homolog).
- Ophiopogon japonicus showed a strong effect; synergistic and enhancing actions observed with Panax ginseng and Schisandra Chinesis combinations. A 9:9:6 proportion demonstrated superior efficacy. Ethanol-extracted SM formula showed no toxicity from 0.2 to 10.0 mg/mL.
Conclusions:
- SM formula effectively treats AD pathological characteristics in a C. elegans model.
- The study provides evidence for SM formula's therapeutic potential in Alzheimer's disease.
- Specific herb combinations and dosages enhance SM formula's efficacy, warranting further investigation.
