Journal of Veterinary Clinics (한국임상수의학회지)

The Korean Society of Veterinary Clinics (한국임상수의학회)
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Effect of Chitosan on Major Lipid-Related Parameters in Sera of Rats Fed High Fat Diet

키토산 첨가가 고지방 식이 랫드의 혈청 지질 농도의 변화에 미치는 영향

  • Hwang, Eui-Kyung (Department of Animal Science, College of Life Science and Natural Resources, Sangji University)
  • 황의경 (상지대학교 생명자원과학대학 동물자원학과)
  • Published : 2006.09.30
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Abstract

This study was performed to investigate the growth rate, hematological and serological changes of the rats when they were fed with the high(at diets supplemented with or without chitosan for five weeks. Twenty-four Sprague-Dawley male rats($235.7{\pm}10.7g$ of body weight) were randomly divided into three groups control group(C) and two treatment groups. Rats in the control group were fed with the high-fat diet containing 10% lard, 1% cholesterol and 0.5% sodium cholate(w/w) which was modified from the formula of the American Institute of Nutrition-76(AIN-76) diet. Rats in treatment groups were red with above diet supplemented with 2.5% of chitosan(CS-2.5) or 5.0% chitosan(CS-5) on the weight to weight basis, respectively. The supplementation of chitosan did not induce any significant difference on the final body weight, gain of body weight and amount of feed intake of rats in between control and treatment groups but the feed efficiency of rats in CS-5 was lower than that of rats in C(p<0.05). The hemoglobin concentrations and hematocrit values showed no significant differences among groups. In addition the values of glucose concentration, total protein, albumin, globulin and albumin/globulin(A/G) ratio showed no significant differences among groups. The values of total cholesterol and low density lipoprotein-cholesterol(LDL-C) in sera of rats in CS-5 were lower than those in both C and CS-2.5(p<0.01). The values of high density lipoprotein-cholesterol (HDL-C) in sera of rats in CS-5 were higher than in both in C and CS-2.5(p<0.05). The values of atherogenic index(AI) of rats in CS-5 were the lowest among groups(p<0.01). AI of CS-2.5 were lower than that or C(p<0.05). The values of triglyceride in sera of rats showed no significant differences among groups. The values of AST in sera of rats in CS-2.5 were lower than those in both C and CS-5(p<0.05). However ALT values showed no significant differences among groups. Therefore the supplementation of chitosan to high fat diet reduced effectively the serum lipid levels such as total cholesterol, LDL-C and triglycerides which were regarded as to cause the cardiovascular diseases moreover it elevated effectively HDL-C value which was regarded protect cardiovascular diseases.

Keywords

References

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