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http://dx.doi.org/10.3746/jkfn.2007.36.2.174

Effect of Gastrodiae elata Blume Components on Systolic Blood Pressure and Serum Lipid Concentrations in Spontaneously Hypertensive Rats Fed High Fat Diet  

Hong, Hee-Do (Korea Food Research Institute)
Shim, Eun-Jung (Korea Food Research Institute)
Kim, Kyung-Im (School of Food Service Management, Hyejeon College)
Choi, Sang-Yoon (Korea Food Research Institute)
Han, Chan-Kyu (Korea Food Research Institute)
Publication Information
Journal of the Korean Society of Food Science and Nutrition / v.36, no.2, 2007 , pp. 174-179 More about this Journal
Abstract
This study was carried out to investigate the effect of Gastrodiae elata Blume fractions on systolic blood pressure and serum lipid profiles in spontaneously hypertensive rats (SHR/NCrj) fed high fat diet. Twenty-four males SHR weighing approximately 160 g were randomly divided into four groups; A (low molecule, GR-1), B (polysaccharide, GR-2), C (protein, GR-3) fractions of G. elata Blume, respectively, and D (high fat diet as control). After orally tube feeding the fractions of G. elata Blume, there were no differences in final body weights among the treatment groups. Diet intake was somewhat high in the control group (D), but there were no significant differences in feed efficiency ratios. In terms of serum lipid profiles, total-cholesterol level was statistically higher in the control group (D) than in G. elata Blume fraction groups (p<0.05). Triglyceride levels of low molecule (A) and polysaccharide (B) groups were lower by 16% and 11%, respectively than that of the control group (D). HDL-cholesterol level was remarkably higher (p<0.05), whereas LDL-cholesterol level was significantly lower (by 25%) in the group B as compared to the control group (D). Atherogenic index (AI) of G. elata Blume fraction groups were significantly lower than in the control group (p<0.05). Reference blood pressure (RBP) showed an average of $180\sim190mmHg$ at 8 weeks old after 3 weeks on feeding high fat diet. Compared with RBP, final blood pressure of treatment groups (35 days after feeding the fractions of G. elata Blume gractions) were decreased by 1.7% (A), 5.5% (B) and 3.6% (C), respectively, but the control group (D) contrarily showed an increase of 2.6%. Especially, final systolic blood pressure of the polysaccharide group (B) was lower by 22 mmHg than that of the control group (D). From these findings, it can be suggested that polysaccharide fraction may improve blood serum lipids and should be considered as effective in lowering of blood pressure.
Keywords
Gastrodiae elata Blume; component fractions; blood pressure; SHR; serum lipids; high fat diet;
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Times Cited By KSCI : 8  (Citation Analysis)
Times Cited By SCOPUS : 1
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