Alpha lipoic acid posses dual antioxidant and lipid lowering properties in atherosclerotic-induced New Zealand White rabbit

A. Zulkhairi, Zaiton Zakaria, Jamaludin Mohamed, F. Sharida, T. H B Mohd, B. Hasnah, H. M. Nazmi, Khairul Osman, A. Zanariyah

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

There is accumulating data demonstrated hypercholesterolemia and oxidative stress play an important role in the development of atherosclerosis. In the present study, a protective activity of alpha-lipoic acid; a metabolic antioxidant in hypercholesterolemic-induced animals was investigated. Eighteen adult male New Zealand White (NZW) rabbit were segregated into three groups labelled as group K, AT and ALA (n = 6). While group K was fed with normal chow and acted as a control, the rest fed with 100 g/head/day with 1% high cholesterol diet to induce hypercholesterolemia. 4.2 mg/body weight of alpha lipoic acid was supplemented daily to the ALA group. Drinking water was given ad-libitum. The study was designed for 10 weeks. Blood sampling was taken from the ear lobe vein at the beginning of the study, week 5 and week 10 and plasma was prepared for lipid profile estimation and microsomal lipid peroxidation index indicated with malondialdehyde (MDA) formation. Animals were sacrificed at the end of the study and the aortas were excised for intimal lesion analysis. The results showed a significant reduction of lipid peroxidation index indicated with low MDA level (p < 0.05) in ALA group compared to that of the AT group. The blood total cholesterol (TCHOL) and low density lipoprotein (LDL) levels were found to be significantly low in ALA group compared to that of the AT group (p < 0.05). Histomorphometric intimal lesion analysis of the aorta showing less of atheromatous plaque formation in alpha lipoic acid supplemented group (p < 0.05) compared to that of AT group. These findings suggested that apart from its antioxidant activity, alpha lipoic acid may also posses a lipid lowering effect indicated with low plasma TCHOL and LDL levels and reduced the athero-lesion formation in rabbits fed a high cholesterol diet.

Original languageEnglish
Pages (from-to)716-722
Number of pages7
JournalBiomedicine and Pharmacotherapy
Volume62
Issue number10
DOIs
Publication statusPublished - Dec 2008

Fingerprint

Thioctic Acid
Antioxidants
Tunica Intima
Rabbits
Lipids
Hypercholesterolemia
Malondialdehyde
LDL Cholesterol
Lipid Peroxidation
Aorta
Cholesterol
Diet
Atherosclerotic Plaques
Drinking Water
Ear
Veins
Atherosclerosis
Oxidative Stress
Head
Body Weight

Keywords

  • Alpha lipoic acid
  • Lipid peroxidation
  • Lipid profiles

ASJC Scopus subject areas

  • Pharmacology

Cite this

Alpha lipoic acid posses dual antioxidant and lipid lowering properties in atherosclerotic-induced New Zealand White rabbit. / Zulkhairi, A.; Zakaria, Zaiton; Mohamed, Jamaludin; Sharida, F.; Mohd, T. H B; Hasnah, B.; Nazmi, H. M.; Osman, Khairul; Zanariyah, A.

In: Biomedicine and Pharmacotherapy, Vol. 62, No. 10, 12.2008, p. 716-722.

Research output: Contribution to journalArticle

Zulkhairi, A, Zakaria, Z, Mohamed, J, Sharida, F, Mohd, THB, Hasnah, B, Nazmi, HM, Osman, K & Zanariyah, A 2008, 'Alpha lipoic acid posses dual antioxidant and lipid lowering properties in atherosclerotic-induced New Zealand White rabbit', Biomedicine and Pharmacotherapy, vol. 62, no. 10, pp. 716-722. https://doi.org/10.1016/j.biopha.2006.12.003
Zulkhairi, A. ; Zakaria, Zaiton ; Mohamed, Jamaludin ; Sharida, F. ; Mohd, T. H B ; Hasnah, B. ; Nazmi, H. M. ; Osman, Khairul ; Zanariyah, A. / Alpha lipoic acid posses dual antioxidant and lipid lowering properties in atherosclerotic-induced New Zealand White rabbit. In: Biomedicine and Pharmacotherapy. 2008 ; Vol. 62, No. 10. pp. 716-722.
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AU - Sharida, F.

AU - Mohd, T. H B

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AU - Nazmi, H. M.

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