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Garlic has been proven effective in the prevention and treatment of atherosclerosis (AS), which is widely used as a food and medicine by people in daily life. Garlic saponins are the main active nonsulfur compounds of garlic, which have a variety of pharmacological activities against cardiovascular diseases. In this study, the antiatherosclerosis properties and mechanism of total saponins of garlic (TSG) in rats were explored. The AS animal model was established by a combination of high-fat feeding, intraperitoneal injection of vitamin D 3,  and ovalbumin-induced inflammation in SD rats. Then, the atherosclerotic rats were gavaged daily by TSG for 4 weeks. Administration of TSG markedly decreased atherosclerotic lesions in the aorta of atherosclerotic rats. TSG restored the serum lipid profile by significantly decreasing the lipid levels and had effective antioxidation by inhibiting the content of malondialdehyde (MDA) and restoring the reduced activity of superoxide dismutase (SOD). Additionally, the ratio of thromboxane B 2  (TXB 2 ) and 6-keto-prostaglandin F 1 α   (6-keto-PGF 1 α  ) could be maintained in a relatively stable dynamic balance after administration of TSG to maintain the vascular homeostasis. In summary, TSG had therapeutic effects on AS, which are promising as functional foods or nutraceuticals for the prevention and treatment of AS.

Antiatherosclerosis Properties of Total Saponins of Garlic in Rats