• Journal of Nutrition and Health
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• 제15권2호
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• pp.119-128
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• 1982

The effect of dietary protein on growth and lipid levels of plasma and liver was studied in weanling male rats fed diets differing protein sources and amino acid balance. Rats were devided into 9 experimental diets which were grouped into 3 categories ; 1) Simple protein category includes gluten-, soy protein isolate-, and casein-containing diet groups, 2) Supplemented category includes casein supplemented with methionine, soy protein isolate supplemented with methionine, and gluten supplemented with lysine and methionine, 3) Mixed protein category includes diet groups containing gluten (2/3), casein (1/3), soy protein isolate (2/3) and casein (1/3), and casein (1/3), soy protein isolate (1/3) and gluten (1/3). The experimental diets composed of 15% protein, 65.8% carbohydrate, 10% fat and 1% cholesterol. The body wt. gain and P.E.R. were greater in rats of supplemented and mixed protein groups than simple protein groups. No statistical differences were found in plasma cholesterol among gluten, soy protein isolate and casein groups. Consumption of diets supplemented with limiting amino acid to gluten or soy protein isolate reduced the plasma cholesterol level by 23.2% and 34.2% respectively. However there was no difference between casein and the supplemented casein groups. The mixed protein groups shows relatively high plasma cholesterol concentration and low liver cholesterol levels. On the other hand gluten group showed low plasma cholesterol and high liver cholesterol levels, which means body cholesterol pool may not have been changed by the dietary protein. Feeding soy protein meal and the supplemented soy protein isolate resulted in lower plasma cholesterol, plasma triglycerides, liver cholesterol and liver triglycerides levels. This hypolipidemic effect is considered to see unique to soy protein isolate. Rats in gluten and the supplemented gluten groups showed lower plasma protein levels and a tendency of fatty liver.

• 한국식품영양과학회지
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• 제27권2호
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• pp.338-343
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• 1998

Artemisia iwayomogi(A. iwayomogi) is a major edible vegetable in Korea. A iwayomogi containing a strong bitter taste, particularly, is known to manifest an effect on cough, abdominal pain, indigestion and bleeding. In this experiment, ethanol extract of A. iwayomogi(50mg/kg body weight) was fed to growing male Sprague-Dawley rats for four weeks in order to examine the lipid lowering effect of A. iwayomogi in the live and serum. High fat diet included 10% lard, 1% cholesterol and 0.25% sodium cholate. The administration of A. iwayomogi extract decreased serum cholesterol compared with the control. At the same time, serum triglyceride(TG) was decreased to 25%. Although atherogenic index and HTR tended to decrease, phospholipid level in the serum was shown to increase by A. iwayomogi administration. At the same token, total liver lipids were decreased to 40%. The group fed both high fat and ethanol extract showed 28% decrease of liver lipids compared with the group fed only high fat diet. On the other hand, HDL cholesteol level of high fat and extract fed group was increased to 30% compared with the non-extract-fed control. Liver TG also was decreased to about 21% in the extract fed groups. Liver phospholipids, particularly, exceeded more than double of the level of high fat control. The above results indicate than A. iwayomogi exert a strong hypocholesterolemic and hypolipidemic effect which may lead to the protection from hypertention, obesity, stroke and many other circulatory diseases.

• Journal of Nutrition and Health
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• 제9권4호
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• pp.11-18
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• 1976

In this third report influence of vibration on growth and on some metabolism of young growing rats fed on varying levels of protein was investigated. Forty eight (48) young growing male rats weighing about 60 grams were used, grouping to four (4) groups, twelve (12) rats each group. They were fed on 8%, 13%, 19%, and 26% casein diet respectively (See the table 1) for the period of 10 weeks experiment. During the experimental period the half number of the rats of each group were subjected to a given degree of vibration for two (2) hours daily. Observations for growth rate, food and protein efficiency ratios, organs development, cholesterol levels in aorta, total nitrogen, urea nitrogen and creatinine levels in urine may be summarized as follows 1. Growth was impaired by the vibration in all groups including 26% easein diet. 2. There is tendeney that in higher protein diets, the organs (See table 3) developed more well. And also the impairment of the organs development by the vibration revealed less in higher protein diets. 3. Food and protein efficiency ratios were generally decreased under vibration and the food efficiency was improved by increasing the protein level in diet. 4. Total and free cholesteral levels in aorta were increased by the vibration. Ester from/tatal ratio was 17.7% and 17.3% respectively at 8% and 13% protein diets and 54.8% and 54.2% at 19% and 26% protein diets. These show that, in higher protein diets, the vibration doesn't influence the cholesterol ratio. 5. Total nitrogen, urea nirogen and creatinine levels in urine were increased by increasing the protion level in diet and also increased by the vibration. 6. It seems that, according to the above observations, the vibration used in this experiment influenced, in certain extent, on physical development, physiological availability of nutrients, and on body metabolism. And it is also thought that higher protein diets act some good role in protecting body from suffering from vibration.

• Journal of Nutrition and Health
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• 제37권2호
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• pp.88-94
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• 2004

운지버섯 균사체 배양액이 고지방식이를 섭취한 숫쥐의 성장률, 장기무게, 지질 대사 및 효소활성에 미치는 영향을 조사하고자, 생후 7주령의 흰쥐 (255.3$\pm$20.2g)에 표준 식이를 급여한 정상군, 표준식이에 15% 돈지를 첨가한 식이를 급여한 고지방군, 고지방 식이에 운지버섯의 균사체 배양액을 음료수에 20% 및 30%로 혼합 급여한 군(20% 및 30% 운지버섯군) 등 4군으로 나누어 5주간 사육한 결과는 다음과 같다. 실험동물의 체중증가량은 30% 운지버섯군이 고지방군에 비해 다소 감소되었다. 식이섭취량 및 식이효율, 그리고 간, 신장, 비장 및 췌장 및 부고환지방의 무게는 고지방군과 20% 및 30% 운지버섯군이 비슷한 수준으로 나타났다. 부고환지방은 정상군에 비해 고지방군 및 운지버섯군들이 유의하게 증가되어 운지버섯 섭취에 따른 감소 효과는 나타나지 않았다. 혈청과 간의 중성지질 농도는 고지방군에 비해 30% 운지버섯군이 유의하게 감소되었다. 혈청과 간의 총 콜레스테롤 농도는 정상군과 고지방군, 20% 및 30% 운지버섯군이 비슷하였다. 혈청의 HDL-콜레스테롤 농도 및 총 콜레스테롤에 대한 HDL-콜레스테롤의 비율은 고지방군에 비해 운지버섯군이 유의하게 감소되었다. 동맥경화지수는 고지방군에 비해 20% 및 30% 운지버섯군이 유의하게 증가되었다. 혈청의 glutamic oxaloacetic transaminase, glutamic pyruvic transaminase 및 alkaline phosphatase 활성은 정상군과 각 실험군이 비슷한 경향이었다. 이상의 결과로 보아 고지방식이를 급여한 흰쥐에 운지버섯 균사체 액체배양액을 30% 급여 시 체중증가량과 장기 무게는 정상수준을 유지하였고, 혈청과 간의 중성지질 농도를 낮추는 효과가 나타났다.

• Journal of Nutrition and Health
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• 제20권4호
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• pp.225-236
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• 1987

This study was performed to investigate the effects of lead poisoning and different levels of dietary lipid on lead and lipid metabolism in the rats. Forty eight male weanling rats of Sprague-Dawley strain weighing 73.1$\pm$11.1g were blocked into 6 groups according to body weight. Dietary lipid were given at the lev딘 of 5, 20 and 40% of total caloric intake and lead were either administered or not. The results obtained are summerized as follows ; 1) Food intake, weight gain, F.E.R. liver and epididymal. fat pad weights, weight and length of bone, hematocrit and hemoglobin content in Pb-adminstered groups were lower than these in Pb-free groups. 2) Plasma lipid and cholesterol levels were tended to be higher in Pb-administered groups than in Pb-free groups, while liver lipid and cholesterol levels were tended to be lower in Pb-adminstered groups. 3) Fecal dry matter excretion was tended to be higher in Pb-adminstered groups than in Pb-free groups, and were increased with increasing dietary lipid level. Daily fecal excretions of lipid and cholesterol were higher in high lipid groups than in low lipid groups and these levels were even higher in the animals exposed to Pb than in Pb-free groups. 4) Pb contents in blood, liver, kidney and bone were significantly higher in Pb administered groups than in Pb-free groups. Pb levels of blood, liver and bone did not show any significant difference among groups with different levels of dietary lipid, but Pb concentration in kidney of Pb-adminstered groups increased with increasing dietary lipid level.

• Food Science and Biotechnology
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• 제18권6호
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• pp.1330-1335
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• 2009

Although beneficial effects of dietary plant proteins on lipid metabolism are well documented, not much information exists on the influence of different seafood proteins on the lipid metabolism. The present study evaluated the effect of 2 marine proteins (tuna protein and scallop ovary proteins) in comparison to casein and soy protein in male Wistar rats. The concentration of total lipids in the plasma of rats fed experimental diets was significantly lower from that of control (278.2 mg/dL) group (p<0.05); and, the liver lipid content was not significantly different (p>0.05). Fecal excretion of cholesterol and bile acids was significantly higher in marine proteins and soy protein fed groups compared to casein only fed control (6.1 and 6.4 mg/day, respectively) group (p<0.05). No significant differences were observed in the mRNA concentrations of different transcriptional factors (p>0.05).

• Journal of Nutrition and Health
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• 제22권6호
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• pp.485-496
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• 1989

This study was performed to investigate nutritional effect of various dietary fibers on lead absorption and metabolism of protein and lipid in growing rats. Forty eight male rats of Sprague-Dawley strain weighing 75.7$\pm$0.7g were blocked into six groups according to body weight and fed six kinds of diet different with fiber source(non-fiber, cellulose, pectin) and lead level(0%, 1% ) for 4 weeks. Results are summerized as follows: 1) Food intake, weight gain, FER and PER were remarkably decreased in lead(Pb) added groups, and FER and PER in Pb-added pectin group were significantly lower than those in Pb-added non-fiber group. 2) Weight of liver, kidney and epididymal fat pad, bone weight and length, hematocrit, and hemoglobin content were decreased in Pb-added groups. 3) Total protein content in serum was tended to be decreased in Pb-added groups, but total lipid and cholesterol contents in serum were not different with dietary Pb level and fiber source. 4) Nitrogen, lipid and cholesterol content in liver were tended to be deceased in Pb-added groups, and especially those of the Pb-added pectin group were the lowest among groups. 5) Daily urinary and fecal excretions of nitrogen, lipid and cholesterol were decreased in Pb-added groups. Especially fecal excretions of nitrogen, lipid and cholesterol in Pb-free groups were significantly increased by dietary cellulose and pectin. 6) Pb content in blood was significantly increased in Pb-added pectin group. There was no significant decrease in Pb contents of liver, kidney and tibia, and increase in excretion of Pb by feeding dietary fibers. In conculsion, dietary fibers had no effect on the absorption of Pb, and dietary pectin seemed to increase Pb poisoning by decreasing bioavailibility of protein, lipid and other nutrients in the diet.

• Journal of Nutrition and Health
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• 제23권7호
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• pp.492-503
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• 1990

This study was performed to investigate nutritional effect of various dietary fibers on lead absorption, and protein and lipid metabolisms in growing rats. Sixty male rats of Sprague-Dawley strain weighing 140$\pm$1.1g were blocked into 10 groups according to body weight and fed 10 kinds of diet different with fiber sources [non-fiber, cellulose, pectin, guar gum or carboxymethylcellulose(CMC)] and lead levels (0 or 1%) for 4 weeks. Results were summerized as follows : 1) Food intake, weight gain, FER and PER were remarkably decreased in lead(Pb)-added groups. Weight gain, FER and PER in Pb-added pectin group were significantly lower than those in Pb-added non-fiber group. 2) Liver and kidney weights, femur weight and length, hematocrit and hemoglobin content were decreased in Pb-added groups. Especially femur and liver weights in pectin groups were the lowest among groups. 3) Total protein content in serum was significantly decreased in Pb-added groups but was not different with dietary fiber sources. Total lipid content in serum was not different with dietary Pb levels and fiber sources, but cholesterol content in serum of guar gum group was significantly decreased by Pb addition. 4) Nitrogen, lipid and cholesteol contents in liver were significantly decreased in Pb-added groups, and lipid content in liver of pectin and CMC groups was lower than other groups. 5) Daily urinary and fecal excretions of nitrogen, kipid and cholesterol were decreased in Pb-added groups, and fecal nitrogen was significantly increased in Pb-added groups, and fecal nitrogen of cellulose and guar gum groups was significantly higher than other groups. Fecal excretions of lipid and cholesterol were increased by dietary fibers, and especially fecal lipid was remarkably increased in pectin and guar hum group. 6) Pb contents in liver and femur were decreased by dietary fibers. Especially Pb contents in liver, kidney and femur were significantly decreased in guar gum group. 7) Daily urinary and fecal excretions of Pb were significantly increased in cellulose and guar gum groups, and fecla excretion of Pb in guar gum group was twice of non-fiber group. Pb absorption ratio was significantly decreased in guar gum group. In conclusion, dietary fibers have effect on protein and lipid metabolisms, and decreased intestinal absorption of Pb by increasing fecal excretion. But the degree of effect was different with dietary fiber sources.

• Journal of Nutrition and Health
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• 제11권3호
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• pp.31-36
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• 1978

This experiment was designed to observe some influence on the serum components of growing rats maintained with basal diet supplemented with sausage. Forty male Albino rats were used as the experimental animals and the subjects were divided into four diet groups (control group; feeding of basal diet containing 10.8% and 10.4% of protein and lipid respectively, A group; feeding of sausage containing 12.5% and 27.6% of protein and lipid respectively supplemented with basal diet every day, B group; feeding of sausage supplemented with basal diet once a three-day and C group; feeding of sausage supplemented with basal diet once a five-day) and each group was fed on the corresponding diet for forty-days. The contents of protein, lipid and cholesterol in their serum were determined. The result obtained are summarized as follows: 1) The final body weight and liver weight of the A group were increased more than other groups. 2) The protein contents in the serum of the B group was increased more than other groups. 3) The total lipid contents in the serum of the A group and B group were decreased compared with control group. 4) The total cholesterol, ester form cholesterol and free form cholesterol in the serum of the A group were decreased, but the total cholesterol and ester form cholesterol in that of the C group were increased compared with control group.

• 한국식품영양과학회지
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• 제40권1호
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• pp.70-77
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• 2011

본 연구에서는 갓 이유한 3주령의 어린 흰쥐에게 일반조제유, 미숙아용조제유, 모유강화제(HMF)를 보충한 조제유를 급여하여, 분유의 종류에 따라 성장과 영양상태 및 생리기능에서 차이가 나타나는지 밝히고자 하였다. 특히, 일반조제유에 HMF를 첨가하여 급여한 경우와 미숙아용조제유를 급여한 경우가 일반조제유 섭취와 비교하여 어떠한 차이가 있는지를 알아보았다. 실험식이는 매일유업주식회사 제품인 일반조제유(프리미엄명작-1; 분말), 미숙아용조제유(베이비웰 프리미; 분말), 모유강화제(베이비웰 에이치엠에프(HMF); 액상)를 사용하였다. 일반조제유군에게는 프리미엄 명작-1에 증류수 13%를, 미숙아용조제유에게는 베이비웰프리미에 증류수 14%를, 그리고 조제유+HMF군에게는 프리미엄명작-1에 HMF를 14% 첨가하여 반고형식으로 실험식이를 만들어 3주 동안 급여하였다. 체중증가량 및 식이섭취량은 미숙아용조제유군과 HMF보충군이 일반조제유군에 비하여 유의적으로 증가하였다(p<0.05). 간, 신장, 비장의 체중에 대한 장기 중량 비는 군간 차이가 없었으나, 신장 주변지방과 부고환지방은 미숙아용조제유군과 HMF보충군이 일반조제유군에 비하여 유의적으로 증가하였다(p<0.05). 혈청의 총 지질과 총 콜레스테롤, HDL-콜레스테롤은 실험군간 유의적인 차이가 없었다. 반면 혈청의 중성지방은 미숙아용조제유군이 식이 중 지방함량의 영향을 받아 다른군에 비해 유의적으로 높았다(p<0.05). 간 조직의 총 지질은 식이에 따른 차이는 없었으나, 혈청 중성지방과 총 콜레스테롤은 미숙아용조제유군과 HMF보충군이 일반조제유군에 비해 유의적으로 높았다(p<0.05). 분 중 총 지질과 중성지방 배설량은 미숙아용조제유군이 나머지 두 군에 비해 유의적으로 증가하였다(p<0.05). 분 중 총 콜레스테롤 배설량은 미숙아용조제유가 유의적으로 가장 높았고, 일반조제유군이 HMF군보다 유의적으로 증가하였다(p<0.05). 혈청 생화학 지표에서는 albumin과 total protein이 미숙아용조제유군에서 유의적으로 증가하였다(p<0.05). GOT는 군간 유의적 차이를 보이지 않았지만 GPT는 HMF보충군에서 증가하였다. BUN은 일반조제유군이 유의적으로 높게 나타났고, 혈중 칼슘 농도는 미숙아용조제유군이 다른 군에 비해 유의적으로 높았다(p<0.05). 혈액의 헤모글로빈 농도는 미숙아용조제유군과 HMF보충군이 일반조제유군에 비하여 유의적으로 높게 나타났다(p<0.05). 혈청의 성장호르몬 농도는 미숙아용 조제유군이 일반조제유군과 HMF보충군에 비하여 유의적으로 증가하였다(p<0.05).