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ORIGINAL ARTICLE
Year : 2012  |  Volume : 3  |  Issue : 4  |  Page : 224-228

Hypolipidemic effect of methanol fraction of Aconitum heterophyllum wall ex Royle and the mechanism of action in diet-induced obese rats


Department of Biotechnology and Microbiology, Thalassery Campus, Kannur University, India

Correspondence Address:
Anu Augustine
Department of Biotechnology and Microbiology, Thalassery Campus, Kannur University, 670661
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/2231-4040.104713

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Aconitum heterophyllum is an endangered Himalayan plant included in "lekhaneyagana," a pharmacological classification mentioned by Charaka in "Charakasamhita" which means reduce excess fat. The subterranean part of the plant is used for the treatment of diseases like nervous system disorders, fever, diarrhea, obesity, etc. In the present study, we are reporting the hypolipidemic effect of methanol fraction of A. heterophyllum. The methanol extract of A. heterophyllum was orally administered in diet-induced obese rats. After four weeks treatment, blood samples were collected for the estimation of serum lipids and lecithin-cholesterol acyltransferase (LCAT). Liver was collected for the assay of HMG-CoA reductase (HMGR). The fecal samples were also collected to estimate the fecal fat content. The A. heterophyllum treatment markedly lowered total cholesterol, triglycerides and apolipoprotein B concentrations in blood serum. It also showed positive effects (increase) on serum high-density lipoprotein cholesterol (HDL-c) and apolipoprotein A1 concentrations. On the other hand, A. heterophyllum treatment lowered HMGR activity, which helps to reduce endogenous cholesterol synthesis and also activated LCAT, helping increase in HDL-c. An increase in fecal fat content is also an indication of the hypolipidemic effect of A. heterophyllum. The significant hypolipidemic effect of A. heterophyllum may be linked to its ability to inhibit HMGR activity and block intestinal fat absorption. The increase in HDL-c may be linked to its ability to activate LCAT enzyme.


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