• Journal of Nutrition and Health
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• 제30권2호
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• pp.187-194
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• 1997

The effects of diet induced hyperlipidemia on kidney function were studied in Sprague-Dawley rats fed high fat diet containing 20% beef tallow and high cholesterol diet containing 5% cholesterol for 8, 12, 16 weeks, respectively. The concentrations of serum total lipid, total cholesterol and LDL-cholesterol were significantly high cholesterol diet groups during all experimental periods (p<0.05). HDL-cholesterol concentration was the lowest value in high cholesterol diet group of 16 weeks(p<0.05). Triglyceride concentration was not affected by experimental diets. Serum total protein, albumin and creatinine concentration tended to higher in high cholesterol diet groups than those in high fat diet groups. And serum urea-N concentration was higher in high fat diet group of 16 weeks than that in other diet groups. Urinary total protein and urea-N were higher in high cholesterol diet groups than those in other diet groups regardless of experimental period period. There was no significant difference in urinary creatinine concentratin among diet groups(p<0.05). GFR was lower in high cholesterol diet groups than that in high fat diet groups at 8, 16 weeks, respectively. Wet weight per body weight, total lipid, triglyceride, total cholesterol concentations of liver tissue were apparently high in high cholesterol diet groups(p<0.05). Kidney wet weight per body weight wer not affected by experimently diets, total lipid concentration of kidney tissue was significantly high in high fat diet groups of 12 weeks(p<0.05), kidney tissue triglyceride concentrations of high cholesterol diet groups of 12, 16 weeks apparently low, and total cholesterol concentration of kidney tissue was higher in experimental diet groups than that of control groups at 12, 16 weeks(p<0.05). Fecal excretion, total lipid, triglyceride and cholesterol concentrations of feces were markedly high in all high cholesterol diet groups except high fat diet group of 16 weeks. The results of light microscopic examination indicated that glomerulosclerosis was not obsrved in rats fed experimental diets.

• 한국식품영양과학회지
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• 제27권5호
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• pp.945-951
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• 1998

The purpose of this study was to investigate the effects of dietary xylooligosaccharide on lipid levels of serum in rats fed high cholesterol diet. Male Sprage-Dawley rats weiging 100$\pm$10g were randomly assigned to groups of two normal(N, N+10X) and four high cholesterol diets which contained 1%(w/w) cholesterol. High cholesterol diet groups were classified to xylooligosaccharide free diet (C group), 5% xylooligosaccharide diet(C+5X group), 10% xylooligosaccharide diet(C+10X group) and 15% xylooligosaccharide diet(C+15X group) according to the level of dietary xylooligosaccharide supplementation. These experimental diets were fed ad libidum for 4 weeks. The weight gain of high cholesterol diet group were significantly increased more than that of normal group, but those of 10% and 15% dietary xylooligosaccharide groups were significantly decreased more than that of high cholesterol diet(C)group. The higher content of xylooligosaccharide, the more food intake was increased. The food efficiencies of 10%, 15% cholesterol diet groups were lower than that of high cholesterol diet(C)group. The levels of serum triglyceride(TG) and total cholestoral were significantly high in cholesterol diet groups compared with normal diet group but were decreased in groups fed 5% and 10% dietary xylooligosaccharide. Especially, the lowest level showed in group fed high cholesterol diet containing 10% xylooligosacchride. High cholesterol diet group containing 10% xylooligosaccharide increased HDL-cholesterol level and then decreased LDL-cholesterol level and atherogenic index compared with other groups. The level of TBARS(thiobarbituric acid reactive substances) in serum was decreased in rat group fed xylooligosaccharide in high cholesterol diet. The higher content of xylooligosacchride, the more gastrointestinal transit time was decreased. The results indicate that dietary xylooligosaccharide can improve status of TG and total cholesterol and repress lipid peroxidation in serum lipid at hypercholesterolemia induced by high cholesterol diet.

• 동의생리병리학회지
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• 제16권2호
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• pp.226-232
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• 2002

This study was carried out to investigate the effect of mixture of Gastrodiae rhizoma (GM) on blood amelioration in high cholesterol-diet rats. Sprague-Dawley male rats were randomly assigned to one normal diet and three high cholesterol-diet groups which contained 1 % (w/w) cholesterol diet. The groups of high cholesterol-diet were classified to control (high cholesterol-diet only), GM-1 (high cholesterol-diet and GM) and ST-1 (high cholesterol-diet and Statin drug). The body and organs weight were not significantly changed among the tested groups. Contents of serum total cholesterol and LDL-cholesterol were significantly increased in cholesterol-diet groups compared with normal diet group but significantly decreased in the group of GM-1. Morphology of red blood cell in GM-1 group was similar to normal diet group but the control group had many crystals of cholesterol. Hepatic xanthine oxidase activity in the rats of high cholesterol-diet was decreased up to the levels of normal diet group according to oral administration of GM. The results of the present study demonstrate that the orally injection of GM can ameliorate the status of total cholesterol and LDL-cholesterol, and repress xanthine oxidase in liver in high cholesterol-diet rats. These finding suggest that GM is expected to be an effective tea for the blood amelioration in high cholesterol-diet rats.

• 한국식품영양과학회지
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• 제35권1호
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• pp.55-60
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• 2006

본 연구에서는 고콜레스테롤 식이 흰쥐에서 효소 처리하여 제조된 함초 열수추출물의 공급이 혈청 및 간조직의 지질대사에 미치는 영향을 관찰하였다. 각 실험군의 100g당 간 조직의 무게를 비교한 결과 정상식이 대조군과 정상식이에 함초 추출물을 공급한 군은 유의적인 차이가 없었으며, 고콜레스테롤군들에서 정상식이 대조군에 비해 유의적으로 증가하였다. 간조직 중성지질 함량은 고콜레스테롤군들에서 정상식이 대조군에 비해 유의적으로 증가하였으며, 고콜레스테롤식이에 함초 추출물 $2\%$ 및 $4\%$를 공급한 군들에서 고콜레스테롤식이 대조군보다 유의적으로 감소되었으며, 간조직 총지질 함량 또한 중성지질과 같은 경향을 나타내었다. 혈청 총콜레스테롤 함량은 고콜레스테롤 식이대조군에서 정상식이 대조군에 비해 유의적으로 증가하였으나, 고콜레스테롤식이에 함초 추출물을 공급함으로써 총콜레스테롤 함량이 다소 감소하였다. 간조직 총콜레스테롤의 함량은 혈청 총 콜레스테롤 함량과 유사한 경향을 나타내었으며, 고콜레스테롤식이에 함초 추출물 $2\%$ 및 $4\%$를 공급한 군들에서 고콜레스테롤식이 대조군에 비해 콜레스테롤의 함량이 유의적으로 감소되었다. 혈청 HDL-콜레스테롤 함량은 고콜레스테롤군들에서 정상식이 대조군에 비해 유의적으로 감소하였으며, 고콜레스테롤식이에 함초 추출물을 공급한 군들에서 다소 증가하였다. 혈청 LDL-콜레스테롤 함량은 고콜레스테롤식이 대조군이 정상식이 대조군에 비해 유의적으로 증가하였으나, 고콜레스테롤식이에 함초 추출물 $4\%$를 공급한 군에서 고콜레스테롤식이 대조군에 비해 유의적으로 감소되었다. 따라서, 고콜레스테롤 식이 흰쥐에서 효소 처리한 함초 열수추출물의 공급은 혈청 및 간조직의 총지질, 중성지질, 총콜레스테롤, LDL-콜레스테롤 및 HDL-콜레스테롤 등의 지질함량을 조절함으로써 지질대사 개선 효과가 있음을 알 수 있었다.

• 한국동물생명공학회지
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• 제35권1호
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• pp.73-85
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• 2020

A high-cholesterol diet can reduce male fertility. However, it is not known whether a high-cholesterol diet can regulate the expression of genes involved in sperm maturation and sperm fertilizing ability. Quercetin, a natural product, is known to have cytoprotective effects by regulating lipid metabolism in various cell types. This study aimed to confirm the expression of genes involved in sperm maturation in the testes of mice fed a high-cholesterol diet and to determine whether quercetin can reverse the genetic regulation of cholesterol. Mice were divided into groups fed a normal chow diet and a high-cholesterol diet. Mice fed the high-cholesterol diet were dose-dependently supplemented with quercetin for 6 weeks. Investigations using quantitative PCR and in situ hybridization revealed that the high-cholesterol diet alters the expression of genes associated with sperm maturation in the testes of mice, and this was reversed with the supplementation of quercetin. In addition, the high-cholesterol diet regulated the expression of genes related to lipid metabolism in the liver of mice. Under a high-cholesterol diet, quercetin can improve male fertility by regulating the expression of genes involved in sperm maturation.

• Preventive Nutrition and Food Science
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• 제15권3호
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• pp.184-188
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• 2010

The purpose of the present study was to evaluate the effects of red pepper seeds powder on lipid metabolism in rats fed high fat high cholesterol diet. Rats were divided into five experimental groups: normal diet group, high fat high cholesterol diet group, high fat high cholesterol diet with 5% red pepper seeds powder supplemented group (SA group), high fat high cholesterol diet with 10% red pepper seeds powder supplemented group (SB group) and high fat high cholesterol diet with 15% red peeper seeds powder supplemented group (SC group). The serum triglyceride (TG) and cholesterol contents, and LDL-cholesterol and atherogenic index (AI) of the red pepper seed powder supplemented groups were significantly decreased compared to the HF group. The serum HDL-cholesterol contents of the red pepper seed powder supplemented groups were increased compared to the HF group. However, there was no significant difference in the serum HDL-cholesterol among all experimental groups. The hepatic TG and cholesterol contents of the red pepper seed powder supplemented groups were significantly decreased compared to the HF group. The fecal total cholesterol and triglyceride contents of the red pepper seeds powder supplemented groups were significantly increased compared to the HF group. These results suggest that supplementation of red pepper seed powder may have a pronounced impact on markers of lipid metabolism in serum and liver of rats fed high fat high cholesterol diets.

• Preventive Nutrition and Food Science
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• 제11권1호
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• pp.36-41
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• 2006

Dongchunghacho rice, produced by cultivating Dongchunghacho fungus on rice, could be an effective functional food because it offers added value to rice and thus increases rice consumption. However, the physiological effect of Dongchunghacho rice has not been reported yet although there is increasing consumers demand. Therefore, we investigated the effect of Dongchunghacho rice (unpolished rice cultivated with Cordyceps militaris) on lipid metabolism in hyperlipidemic rats. Forty of 8 wk-old male Sprague-Dawley rats were divided into four groups after a 1 week of adaptation period and fed either a normal diet (66% polished rice diet, NC), high fat (12 g/100 g)-high cholesterol (1 g/100 g) diet with 53% polished rice (HC), or high fat-high cholesterol diets supplemented with 30% of the total rice as either unpolished rice (DR) or Dongchunghacho rice (DR). After 4 weeks, rats fed the Dongchunghacho rice diet with high fat and cholesterol had dramatically lower plasma LDL cholesterol concentrations and atherogenic indexes and higher plasma HDL cholesterol levels compared with the rats consuming polished rice or unpolished rice with high fat and cholesterol diet. Dongchunghacho rice led to less total lipid and total cholesterol accumulation in liver. However, these significant reductions in plasma or hepatic lipid profiles were not closely correlated with fecal total lipid or total cholesterol excretion. The plasma concentration of total cholesterol and triglycerides were not affected by Dongchunghacho rice. This hypolipidemic effect of Dongchunghacho rice seemed to be unrelated to unpolished rice itself, because the plasma and hepatic lipid profiles of DR group were not different from that of the HC group. These results suggest that unpolished rice containing cultivated Cordyceps militaris can improve plasma and hepatic lipid profiles in rats fed with high fat-high cholesterol diet.

• 생약학회지
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• 제34권1호통권132호
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• pp.65-69
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• 2003

This study was performed to examine the effects of Liriopis Tuber extracts to high cholesterol diet on lipid metabolism in rats. Male Sprague-Dawley rats of $90{\pm}10\;g$ were divided into six groups; basal diet (normal group), 1% high cholesterol diet (control group), high cholesterol diet supplemented with 3%, 5% water extracts (C3W, C5W group) and high cholesterol diet supplemented with 3%, 5% MeOH extracts (C3M, C5M group). These experimental diets were fed for 4 weeks. The lipid contents on serum, liver, feces were lower Lriopis Tuber extracts groups than control group. Especially, the effects of water extract was better than MeOH extract.

• 생명과학회지
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• 제14권4호
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• pp.531-536
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• 2004

신령버섯 균사체 액체배양액이 고콜레스테롤 식이를 섭취한 흰쥐의 지질대사에 미치는 영향을 조사하고자, 생후 7주령의 숫쥐에 표준식이를 급여한 정상군, 표준식이에 15% 돈지와 0.5% 콜레스테롤을 첨가한 식이를 급여한 대조군, 대조식이에 신령버섯 균사체 액체배양액을 음료수에 30% 및 40%로 혼합 급여한 군(30% 및 40% 신령버섯군) 등 4군으로 나누어 6주간 사육한 결과는 다음과 같다. 실험동물의 체중 증가량, 식이섭취량 및 식이효율은 대조군과 30%와 40% 신령버섯군이 유사하였다. 간, 신장 및 부고환지방의 무게는 대조군과 신령버섯군들이 비슷하였다 간의 콜레스테롤 농도, 간과 혈청의 중성지질 농도는 대조군과 신령버섯군들이 비슷한 수준으로 감소효과가 나타나지 않았다. 혈청의 총 콜레스테롤과 LDL-콜레스테롤 농도 및 동맥경화지수는 대조군에 비해 30% 및 40% 신령버섯군이 유의하게 감소되었다. 총콜레스테롤에 대한 HDL-콜레스테롤의 비율은 대조군에 비해 신령버섯군들이 유의하게 증가되었다. HDL-콜레스테롤 농도는 대조군과 신령 버섯군들이 비슷한 수준으로 신령 버섯섭취에 따른 영향은 나타나지 않았다. 분으로 배설된 지방은 대조군에 비해 40% 신령버섯군이 유의하게 증가되었다. 이상의 결과로 보아 고콜레스테롤 식이를 급여한 흰쥐에 신령버섯 균사체 액체배양액을 30%나 40% 급여시 혈청의 총 콜레스테롤, LDL-콜레스테롤 농도 및 동맥경화지수를 낮추고, 총 콜레스테롤에 대한 HDL-콜레스테롤의 비율을 증가시키는 것으로 나타났다.

• Journal of Applied Biological Chemistry
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• 제54권3호
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• pp.197-205
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• 2011

This study was carried out to investigate the dietary effects of Monascus pilosus mycelial extract on obesity in high-fat with cholesterol-induced obese rat models. It was observed that M. pilosus mycelial extract contains $25.85{\pm}1.98mg%$ of total monacolin K without citrinin by highperformance liquid chromatography (HPLC). The rats were randomly divided into 2 groups; normal control and a high-fat with cholesterol diet group. The high-fat with cholesterol diet group was fed a 5L79 diet with an added 15% lard and 1% cholesterol supplemented diet for 3 weeks for induction of obesity. After induction, obesity was confirmed by checking obesity indexes, the animals were divided into 4 groups (n=5); first, the normal control (NC), and then taken from the obese model of rats, a high-fat with cholesterol diet obesity control group (HF), 0.5% M. pilosus mycelial extract supplemented high-fat with cholesterol diet group (MPMs), 2% conjugated linoleic acid supplemented high-fat with cholesterol diet group (CLA) for 7 weeks. Body weight gains, obesity indexes, and body fat contents in the experimental groups (MPMs and CLA) were decreased compared with HF group. Feed Efficiency Ratio (FER) in MPMs was significantly lower than that of HF without change of feed intake. These results suggested that the anti-obesity effects of the M. pilosus mycelial extracts (MPMs) could prevent obesity induced by high-fat with cholesterol diet possibly via inhibition of lipid absorption.