• 동의생리병리학회지
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• 제30권2호
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• pp.81-87
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• 2016

This study was performed to investigate the cholesterol-lowering effect of liquid extract from Leonurus sibiricus Linne (LS). SD rats were fed atherogenic diet for 6 weeks. During the experimental period, LS liquid extract (3 g/kg and 6 g/kg) was orally given to the rats. The liver weight and levels of total cholesterol, LDL-cholesterol, and triglycerides in serum were significantly increased in rats fed with atherogenic diets. Oral treatment of LS liquid extract to the rats fed atherogenic diet significantly reduced the liver weights and significantly decreased the levels of total cholesterol, LDL-cholesterol, and triglycerides. The level of serum HDL-cholesterol was significantly increased at a high dose group compared with rats fed normal diet chow. These results indicate that LS liquid extract has the potential to restore altered lipid profiles induced by cholesterol rich diets and prevent the development of atheroclerosis.

• 한국생명과학회:학술대회논문집
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• 한국생명과학회 2006년도 제47회 학술심포지움 및 추계국제학술대회
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• pp.84.2-84.2
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• 2006

• Journal of Pharmaceutical Investigation
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• 제29권1호
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• pp.55-60
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• 1999

We previously showed that a methanol extract of Paeoniae radix decreased total cholesterol level in rats with hyperlipidemia. In order to isolate the active ingredient(s), the methanol extract of Paeoniae radix was fractionated with chloroform/methanol(4:1) solution and isolate into soluble part and insoluble part of the the methanol extract. Above two parts were tested on the experimentally induced hypercholesterolemia in rats for the lowering effect of serum lipoprotein contents. Hyperlipidemia was induced on male Wistar rats by feeding high choleserol diet for 7 days. After oral administration of above samples for 4 weeks, serum lipid profile was verified on these rats by measuring total cholesterol, triglyceride, high density lipoprotein cholesterol and low density lipoprotein cholesterol. The chloroform/methanol(4:1) soluble part and insolule part showed lowering activity of total cholesterol level and triglyceride level at 4 week point significantly(p<0.01 and p<0.05) compare with the control group and the soluble part was more effective.

• Preventive Nutrition and Food Science
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• 제18권3호
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• pp.210-213
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• 2013

The aim of this study was to investigate the effects of isolated protein from white rice on lipid metabolism in a hypercholesterolemic animal model. Male Sprague-Dawley rats were divided into three groups and fed either a normal diet or a high-cholesterol diet (HCD) containing either casein or isolated rice protein for 4 weeks. Compared with rats fed a HCD with casein, the total cholesterol (TC) level in the plasma was significantly reduced in the rats fed rice protein. However, no significant differences were observed in the triglycerides, high-density lipoprotein (HDL), and glucose levels among the experimental groups. Hepatic total lipids and TC levels were significantly decreased by supplementation with rice protein. In addition, rice protein significantly increased the levels of TC and bile acids in the feces. These results suggest that rice protein may improve HCD-induced hypercholesterolemia by enhancing fecal excretion of cholesterol.

• Journal of Pharmaceutical Investigation
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• 제27권2호
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• pp.145-151
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• 1997

Hexane, chloroform, methanol and water extracts of Paeoniae Radix were tested on the experimentally induced hypercholesterolemia in rats for lowering effect of serum lipoprotein contents. Hyperlipidemia was induced on male Wistar rats by feeding high cholestetrol diet for 7 days. Serum lipid profile was verified on these rats by measuring total cholesterol (TC), triglyceride (TG), high density lipoprotein cholesterol (HDL), and low density lipoprotein cholesterol (LDL). Then, the diet was changed to normal. At the same time, hexane, chloroform, methanol and water extract of Paeoniae Radix were given orally on daily basis, and the changes in the serum lipid profile were assessed for 4 weeks. Methanol extract of Paeoniae radix decreased TC level at 1, 2, and 4 week point significantly, and water extract decreased TC level at 4 week point significantly comparing with the control group.

• 한국식품영양과학회지
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• 제43권4호
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• pp.485-490
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• 2014

본 연구는 흰쥐를 이용하여 고콜레스테롤 식이로 고콜레스테롤혈증을 유도하고 이에 천년초 추출물을 2, 4% 식이에 포함시켜 경구로 섭취 시의 천년초 추출물의 콜레스레롤 개선 효과를 알아보고자 하였다. 이에 혈중 및 간 조직 내 지질성분, 혈중 간 손상 지표, 분변 내 지질 성분 및 담즙산을 분석하였다. 천년초 추출물 섭취는 고콜레스테롤 식이로 상승된 혈청 총 콜레스테롤과 저밀도 지단백 콜레스테롤을 정상 수준으로 감소시켰으며 고밀도 콜레스테롤은 증가시켜 혈중 콜레스테롤 개선 효과를 나타내었다. 고콜레스테롤 식이 유도로 인해 상승된 혈중 ALT와 AST는 천년초 추출물 처치로 감소되는 경향을 보였으며 고콜레스테롤 식이로 인해 상승된 간 조직 내의 총 콜레스테롤과 중성 지방 역시 천년초 추출물 처치로 인해 용량 의존적으로 감소되었다. 분변 내 중성 지방과 담즙산은 천년초 추출물 처치로 유의적으로 상승되어 천년물 추출물 섭취로 중성 지방과 담즙산 배설이 유도가 이루어짐을 알 수 있었다. 본 연구 결과 천년초 추출물은 고콜레스테롤 식이로 고콜레스테롤이 유도된 쥐에 있어 콜레스테롤 개선 효과의 가능성 있는 식품 소재로 판단되며, 이를 인체에 적용시키기 위해서는 이에 대한 기전연구와 활성 물질 동정에 대한 계속적인 연구가 이루어져야 할 것으로 생각되어진다.

• 대한약리학회지
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• 제1권1호
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• pp.7-16
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• 1965

Glycyrrhizin, an active constituent of Glycyrrhiza, was chemically extracted and its hypocholesterolemic activities were studied in rats. Following were the results: 1. The Sprague Dowley rats fed with the standard diet were divided into 4 groups, $50{\sim}60$ in each, and glycyrrhizin was given in doses of 0 (control), 0.5, 1.0 and 2.0mg per 100gm body weight daily for 10, 20, 30, and 60 days. Glycyrrhizin showed more or less the hypocholesterolemic activities in all animals. All of the animal groups to which 1. 0mg and 2.0mg of glycyrrhizin were given died before 60 days, while no mortality cases was noted in the group to which 0.5mg of glycyrrhizin was given. 2. Cholesterol administration induced hypercholesterolemia in all experimental animals, however, simultaneous administration of cholesterol with 0.5mg of glycyrrhizin suppressed the rise of the total serum cholesterol levels. The former group did not survive until 56 days, while the latter did. 3. Glycyrrhizin also Suppressed the cholesterol biosynthesis and incorporation of cholesterol in the liver tissues. 4. Glycyrrhizin induced the increase of the fecal excretion of the sterol compounds.

• 한국식품영양과학회지
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• 제21권2호
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• pp.131-135
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• 1992

혈청중의 총 콜레스테롤, LDL, LDL-콜레스테롤 농도는 대조군에 비하여 전 실험군이 낮게 나타났고, 총 콜레스테롤은 전 실험군중 6군(표고버섯 10%첨가)이 가장 낮았고 LDL및 LDL-콜레스테롤 농도는 6군이 가장 낮게 나타났으며, HDL-콜레스테롤의 농도는 대조군에 비하여 전 실험군이 높게 나타났고 그 중 3군(표고버섯 5%첨가)이 가장 높게 나타났다. 중성지질, 인지질, 유리콜레스테롤, 콜레스테롤 에스테르는 대조군에 비하여 전 실험군이 모두 낮게 나타났고 중성지질은 6군이 가장 낮았으며, 인지질은 3군이 가장 낮았고, 유리 콜레스테롤 농도 또한 3군 에스테르 6군이 가장 낮게 나타났다. Chylomicron과 VLDL은 대조군 보다 여타 실험군이 모두 낮았으며 chylomicron은 3군에서, VLDL은 6군에서 낮게 나타났다. 본 실험의 결과로 볼 때 영지버섯, 표고버섯, 목이버섯은 고콜레스테롤 혈증의 예방및 치료에 효력이 있는 것으로 나타났으며, 특히 표고버섯이 가장 유효함을 보였다.

• Clinical and Experimental Reproductive Medicine
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• 제48권3호
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• pp.229-235
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• 2021

Objective: In this study, the effects of Lactobacillus acidophilus on testosterone (TES), follicle-stimulating hormone (FSH), luteinizing hormone (LH), androgen-binding protein (ABP), factor-associated apoptosis (FAS), and total cholesterol (TC), as well as histopathological changes, were investigated in male rats fed a high-cholesterol diet. Methods: The study included three groups. The control (C) group was fed standard-diet for 8 weeks. The hypercholesterolemia (HC) group was fed a 2% cholesterol-diet for 8 weeks. The therapeutic group (HCL) was fed a 2% cholesterol-diet for 8 weeks and administered L. acidophilus for the last 4 weeks. FSH, TES, and FAS levels in testicular tissue were determined using an enzyme-linked immunosorbent assay (ELISA), while another sample was examined histopathologically. LH and ABP levels were determined using ELISA, and serum TC levels were assessed via an autoanalyzer. Results: In the HC group, the TC levels were significantly higher and the LH levels were lower (p<0.05) than in the C group. The ABP levels were lower (p>0.05). In the HCL group, the LH and ABP levels were higher (p>0.05) and the TC level significantly lower (p<0.05) than in the HC group. The TES and FSH levels were lower, and the FAS levels were higher, in the HC than in the C group (p<0.05). In the HCL group, levels of all three resembled control levels. Histologically, in the testicular tissue of the HC group, the cells in the tubular wall exhibited atrophy, vacuolization, and reduced wall structure integrity. However, in the HCL group, these deteriorations were largely reversed. Conclusion: Supplementary dietary administration of an L. acidophilus to hypercholesterolemic male rats positively impacted testicular tissue and male fertility hormone levels.

• 한국가정과학회지
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• 제8권1호
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• pp.49-58
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• 2005

This study was designed to observe the effects of the feeding Callophyllis japonica extracts on the improvement of the blood glucose, lipid in the serum of dietary hypercholesterolemic rats(S.D. strain, ?) fed the experimental diets for 4 weeks. Concentrations of total cholesterol and LDL-cholesterol in serum were significantly lower in the Callophylis japonica extracts group than in the choloesterol supplemented diet group. Concentrations of HDL-cholesterol in serum were higher in the Callophyllis japonica extracts group than in the cholesterol supplemented diet group. Concentrations of free cholesterol, triglyceride, phospholipid and blood glucose in serum were significantly lower in the Callophyllis japonica extracts group than in the cholesterol supplemented diet group. The activities of aspatate aminotransferae(AST), alanine aminotransferase(ALT), lactate dehydrogenase(LDH) and alkaline phosphatase(ALP) in serum were lower in the CAllophyllis japonica extracts supplemented group than in the cholesterol diet group. From the above research, the physiological activity substances in Callophylis japonica extracts were effective on the improvement of the blood glucose, lipid compositions in serum of dietary hypercholesterolemic rats.