• Title/Summary/Keyword: hypolipidemic effect

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Hypocholesterolemic Effect of Amaranth Squalene (Amaranth esculantus) in Rats Fed a High Cholesterol Diet

  • Kim, Hye-Kyung;Chang, Young-Jeong;Heo, Ho-Jin;Cho, Hong-Yon;Hong, Bum-Shik ;Shin, Dong-Hoon
    • Preventive Nutrition and Food Science
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    • v.8 no.1
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    • pp.13-18
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    • 2003
  • In experiment 1, rats (n=6) fed diet containing 10 g/kg cholesterol for 4 wk (control) with either no amaranth (control), amaranth grain (300 g/kg, AG) or amaranth oil (90 g/kg, AO). Both the AG and AO groups had lower concentration of serum and hepatic cholesterol and triglyceride than the controls (p < 0.05). Fecal excretions of cholesterol and bile acid in AO group increased about 4 fold and 2 fold, respectively, while AG affected only bile acid excretion (p < 0.05). In experiment 2, rats (n=6) were fed the cholesterol diet for 4 wk and injected intraperitoneally with saline (control) or amaranth squalene (AS) for 7d. The hypolipidemic effect of AS was evident in both serum and liver. Fecal excretions of cholesterol and bile acid were greater (p < 0.05) in AS than control. HMG-CoA (3-hydroxy-3-methylglutaryl coenzyme A) reductase activity was reduced in AS group (11.6%, p=0.13). This study suggests that the cholesterol-lowering effect of AS is mediated by greater fecal elimination of steroids through interference with cholesterol absorption.

Effect of Platycodon Grandiflorum Aqueous Extract on Lipid Levels in Rats

  • Kim Jeong-Seon
    • Nutritional Sciences
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    • v.9 no.3
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    • pp.167-172
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    • 2006
  • This study investigated the effects of Platycodon grandiflorum aqueous extract on lipid concentration of serum and liver in rats fed high cholesterol diet Male Sprague-Dawley rats were assigned to three groups (control, low dose of extract, high dose of extract) for four weeks. The serum total cholesterol concentration was significantly lower in the low and high doses of extract groups than in the control group. There was a significant decrease in the free cholesterol, cholesterol ester, LDL-cholesterol, and triglycerides concentrations in serum, and the total cholesterol and the triglycerides contentin liver in the low and high doses of extract groups compared to the control group. When the serum phospholipid concentration was compared among the groups, it was significantly lower in high dose of extract group than in control and low dose of extract group. It can be postulated that Platycodon grandiflorum aqueous extract may possess substantial hypolipidemic properties in rats.

Inhibitory Effect of Mouse Paw Edema by Solanum melongena Aqueous Extract (노랑가지 물추출물에 의한 생쥐 발바닥 부종의 억제효과)

  • 김대기;백옥선;임종필;이영미
    • YAKHAK HOEJI
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    • v.47 no.5
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    • pp.325-330
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    • 2003
  • Solanum melongena L. (Solanaceae) has anti-oxidant, analgesic, and hypolipidemic effects. We previously showed that Solanum melongena (SM) aqueous extract inhibits mast cell-mediated allergic reactions. The activation of protease-activated receptor-2 (PAR-2) induces acute inflammation in rat hindpaw. In the present study, we investigated the effects of the SM aqueous extract on mouse paw edema induced by PAR2 agonists. Trypsin or trans-cinnamoyl-LIGRLO-NH$_2$ (tc-NH$_2$), PAR-2 agonists, was injected into the hind paw of mice to induce paw edema. SM aqueous extract (1, 5, 10, and 100 mg/kg) was orally administered 1 hr before induction of paw edema. SM aqueous extract (5, 10, and 100 mg/kg) significantly inhibited both paw edema and vascular permeability in the dose-dependent manner. Furthermore, SM aqueous extract (10 mg/kg) significantly inhibited PAR-2 agonist-induced myeloperoxidase (MPO) activity and tumor necrosis factor (TNF)-$\alpha$ expression in paw tissue compared to that of saline. These results suggest that SM aqueous extract may be useful for treatment of PAR-2-mediated inflammation.

Inhibition of Nitric Oxide Synthesis by Ergosterol Derivative from Phellinus pini in LPS-Activated RAW 264.7 Cells (낙엽송층버섯으로부터 Ergosterol 유도체의 분리 및 RAW 264.7 세포주의 Nitric Oxide 생성 저해활성)

  • Jang, Hyun-Jin;Yang, Ki-Sook
    • YAKHAK HOEJI
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    • v.50 no.6
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    • pp.367-371
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    • 2006
  • Phellinus pini (Hymenocaetaceae) has been used for the immunomodulating activity hypolipidemic effect, gastric cancer non-insulin dependant diabetes, diarrhea, and menstrual irregularity. From the screening of each fraction for the inhibitory activity of NO production in lipopolysaccaride (LPS) activated RAW 264.7 cells, methanol extract of Phellinus pini and hexane soluble fraction exhibited inhibition of NO production compared with LPS control without toxicity. The hexane soluble fraction showed dose dependent inhibition of NO production. According to activity guided fractionation, the active hexane fr. was repeatedly chromatographed over silica gel, ergosta-4,6,8(14),22- tetraen-3-one was isolated. The compound inhibited NOS activation (IC$_{50}$ = 29.7 uM) and NO production of activated macrophage at 30 uM.

Hypoglycemic and Hypolipidemic Effects of Orostachys japonicus with Medicinal Herbs in Streptozotocin-Induced Diabetic Rats (생약재와 와송 추출물의 복합조성물이 Streptozotocin 유발 당뇨성 흰쥐의 혈당강하 및 혈중 지질성분에 미치는 영향)

  • Lee, Soo-Jung;Shin, Jung-Hye;Ju, Jong-Chan;Kang, Shin-Kwon;Sung, Nak-Ju
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.42 no.4
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    • pp.587-594
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    • 2013
  • The hypoglycemic and hypolipidemic effects from Wa-song (Orostachys japonicus) extracts with mixtures of medicinal herbs (such as Baekbokyung, Changchul and Sa-in) were evaluated in the streptozotocin (STZ)-induced diabetic rats. Thirty-five Sprague-Dawley rats were assigned to five groups; normal, diabetic control (D-control), a group fed a medicinal herbs mixture (D-MH), and a group fed composites of O. japonicus with mixtures of medicinal herbs (1:1, D-MHOA and 3:1, D-MHOB). All were fed on their diet for 4 weeks. After 4 weeks, the body weight of all experimental groups increased compared to the diabetic control group, with the D-MHOB group having a significantly higher increase. Fasting glucose levels in all experimental groups (compared to the D-control group) significantly decreased after 2 weeks, but between 2~3 weeks, the levels in the D-MH group were similar to the D-MHOA group. After 4 weeks, the fasting glucose level of the D-MHOB group was the lowest compared to the other groups. In a test of oral glucose tolerance, blood glucose levels were highest 60 minutes after feeding glucose; however this level improved significantly in the groups fed an experimental diet compared to the D-control group. Glycosylated hemoglobin levels were 1.9 times higher in the D-control group than the normal (3.9%), but levels in the experimental groups were significantly decreased in D-MHOA and D-MHOB groups compared to the D-MH group. In the high amounts of O. japonicus to medicinal herbs mixture, total lipids and cholesterol significantly decreased in the serum, while HDL-C levels increased. GPT activity was significantly lower in the D-MHOB group compared to the other groups. Lipid peroxide levels decreased in the D-MHOA and D-MHOB groups compared to the D-MH group. Antioxidant activity was higher depending on the dose of O. japonicus. Overall, O. japonicus exhibited effective hypoglycemic and hypolipidemic actions enhanced by a combination of medicinal herbs.

Variation Patterns of the Blood Lipid Levels on the Sprague-Dawley-Rats Fed with Kochujang Extracts (고추장 추출물을 급여한 Sprague-Dawley-Rat에서의 혈중지질 농도의 변화 양상)

  • Woo, Yong-Ku;Kim, Tae-Hyo;Koh, Jong-Ho
    • The Korean Journal of Food And Nutrition
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    • v.26 no.4
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    • pp.737-744
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    • 2013
  • The present study was investigated to evaluate on the health improving effect of Kochujang (Fermented Korean hot pepper paste), which was famous as Korean traditional healthy food among foreigners as it was served together with Bibimbap. For comparison, observation was made on the experimental animals (Sprague-Dawley rat) as breeding during 5 weeks, which were divided three groups as into the control groups (N-group) fed with normal feed only and high cholesterol feed only (H-group) and the K-group with combined diet of normal feed and Kochujang extracts (Water soluble complex materials). The most outstanding result was found as the definite fatty liver lesions found from all (100%) of the rats of the H-group at the abdominal opening examination. On the other hand, there was any finding on fatty liver lesions in the N-group as well as the K-group. Therefore, it was more than enough to identify the hypolipidemic effect by visual finding only. Furthermore, from the results of blood plasma analysis from SD-rats fed with Kochujang extract (K-group), more prominent differential findings were found, the value of HDL-cholesterol, which was good for preventing the arteriosclerosis, was more or less higher than that of H-groups. But the level of LDL-cholesterol, which was one of the hazardous agents of hyperlipidemia and arteriosclerosis, was more significantly reduced to the level even lower than that of N-group, based on the statistical analysis, in especial. According to the present results, we could find that the unidentified Korean traditional Kochujang-derived complex components had expressed both the positive health improving effects and hypolipidemic effects on the SD-rat.

The Effect of Dietary Taurine Supplementation on Plasma and Liver Lipid Concentrations in Rats (타우린 첨가 식이가 흰쥐에서 혈중 지질과 간 지질 농도에 미치는 영향)

  • Choi Mi-Ja;Seo Ji-Na
    • Journal of the East Asian Society of Dietary Life
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    • v.16 no.2
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    • pp.121-127
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    • 2006
  • This study investigated the effect of dietary taurine supplementation on the plasma and liver lipid concentrations in lats fed a cholesterol free diet Twenty male-Sprague-Dawley rats(body weight $200{\pm}10g$) were divided into two groups, the control and taurine group(2% taurine supplemented in their diet). All the rats were fed on the experimental diet and deionized water for 6 weeks libitum. There were no significant differences body weight gain, food intake and the food efficiency ratio between the control and experimental groups. The rats fed the taurine diet had a significantly lower triglyceride and AI(athrogenic index) than those fed the control diet The liver total cholesterol (p<0.05) and triglyceride levels(p<0.01) were significantly lower in the rats fed the taurine diet than in those fed the control diet. These results suggest a possible role of taurine as a hypolipidemic agent in male rats fed a cholesterol free diet.

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The Effect of Rice Germ Oil Supplement on Serum and Hepatic Lipid Levels of Streptozotocin-Induced Diabetic Mice (쌀눈기름의 급여가 Streptozotocin으로 유발한 당뇨 마우스의 혈액 및 간조직 중의 지질 수준에 미치는 영향)

  • 이성현;전혜경;이연숙
    • Journal of Nutrition and Health
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    • v.36 no.6
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    • pp.543-548
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    • 2003
  • This study was carried out to investigate the effects of rice germ oil supplement on the lipid metabolism of insulin-dependent diabetic mice. Streptozotocin-induced diabetic mice were fed three kinds of experimental diets with 20% lipid, composed of 20% lard (L) : 10% lard and 10% rice germ oil (LRGO) ; and 20% rice germ oil (RBO), respectively, for 7 weeks. Diet intake, body weight, organ weight and lipid levels of serum, liver and feces were measured. There was no significant difference in diet intake, body weight and organ weight among the experimental groups. But the concentrations of serum triglyceride in the LRGO and RGO groups, and of serum total cholesterol in the RGO group, were significantly lower than those of the L group fed the 20% lard diet. The levels of hepatic total lipid of the RGO group, and of hepatic total cholesterol of the LRGO and RGO groups were significantly lower than those of the L group. The contents of total lipid and total cholesterol excreted in the feces of the LRGO and RGO groups were higher than those of the L group. These results suggest that rice germ oil can reduce the levels of total cholesterol concentrations in the serum or livers of insulin-dependent diabetic mice, and that the hypolipidemic effect of rice germ oil may be due to increasing fecal lipid excretion and decreasing lipid absorptivity.