This study was to investigate the effect of zinc supplementation on serum cholesterol concentration of young women. Thirty healthy students were divided into Zn and placebo groups, and were orally given with zinc(50mg/day, 220mg as ZnSO4·7H2O) or placebo for 2 month (June 9-August 7, 1988). Changes of plasma zinc, serum total cholesterol, HDL-cholesterol (HDL-C), LDL-cholesterol(LDL-C) and total lipid were analyzed from the initiation to 1 month after the end of zinc supplementation at monthly interval. Plasma zinc, serum LDL-C content and LDL-C/HDL-C were significantly increased by zinc supplementation. Serum total cholesterol content tended to be increased by zinc supplementation but was not significantly different between the two groups. Serum HDL-C content was significantly decreased by zinc supplementation. Serum total lipid content was not different between the two groups during experimental period. Thus, in this study considering the effect of zinc supplementation on serum cholesterol concentration, we conclude that the effect of zinc supplementation on coronary heart disease may be negative.
The effects of root of the Bupleurum falcatum L. on the serum transaminase (SGP-T, SGO-T) activities and the content of total cholesterol in serum from normal and alloxan-diabetic rabbits were observed. The preparations were extracted by methanol, and extracted samples were orally administrated to the normal and alloxandiabetic rabbits. The transaminase activities and the content of total cholesterol in serum of normal rabbits were significantly increased by administration of the alloxan. The increased serum transaminase activities of the alloxandiabetic rabbits were significantly decreased after 96 hours by administration of the extracted samples. The increased content of total cholesterol in serum of the alloxan-diabetic rabbits were gradually decreased by administration of the extracted samples and were recovered to the control levels after 12 days. According to the above results, it would be concluded that the extract of Bupleuri Radix influences for the recovery of the increased contents of total cholesterol and serum transaminase activities by alloxan.
The effects of alcohol. extract of acacia on total cholesterol, ${\beta}-lipoprotein$ content and S-GOT activity in serum of rabbit were examined. Rabbits were divided into four groups. A : Control group B : Cholesterol group C : Cholesterol+aca. alc. ex. (A) group D : Cholesterol+aca. alc. ex. (B) group Each group had four rabbits. A Group was fed with the stock diet only for the experimental period of 28 days. B Group was fed with the stock diet containing 500mg of cholesterol. C Group was fed with the stock diet containing 500mg of cholesterol and 300mg of acacia alcohol extract. D Group was fed with the stock diet containing 500mg of cholesterol and 500mg of acacia aocohol extract. Total cholesterol ${\beta}-lipoprotein$ content and S-GOT activity in serum was determined with spectrophotometer, spectronic 20. It was confirmed that the extract of acacia alcohol inhibits the increase of total cholesterol, ${\beta}-lipoprotein$ content and S-GOT activity in serum but the statistical probability was not significant.
Journal of the Korean Society of Food Science and Nutrition
/
v.23
no.5
/
pp.718-724
/
1994
The study was conducted to investigated the effect of dietary levels of zinc (Zn) on lipid metabolism in cadmium (Cd) treated rats. Sixty male Sprague-Dawley rats weighing about 110$\pm$10g were divided into 6 groups. The Zn levels were low (0ppm), control (30 ppm) and Cd-treated groups were administrated with Cd chloride (5.0mg/kg of body weight) by oral intubation at the same time once a week. Serum total lipid, triglyceride , total cholesterol and DHL-cholesterol contents decreased significantly in low Zn group. In serum dietary high Zn group, it decreased significantly in the content of triglyceride but total cholesterol and HDL- cholesterol revealed increase slightly . Total lipid and triglyceride contents increased by Cd oral intubation, but triblyceride content of control group decreased significantly in Cd-treated groups. HDL-cholesterol content also decreased by Cd oral intubationl. Cd-treatment increased total cholesterol content in low Zn group. Liver triglyceride content increased as dietary Zn level became more increasing and total lipid was not influenced by dietary Zn levels. Liver cholesterol content was higher in low and high Zn groups than that of control group. Liver phospholipid content decreased in low Zn group . Oral intubation of Cd increased in the contents of triglyceride and total lipid. The content of liver Zn was not influenced by the dietary low Zn but that of serum showed a remarkable increased . Oral Cd intubation increased the Cd contents of liver and serum.
In order to investigate the effect of Alismatis Lhizoma on hyperlipidemia, experimental studies were performed on hyperlipidemia rats. Hyperlipidemia model (controll group) was induced by 1% cholesterol fed-diet for 8 weeks. Sample I group fed with 1% cholesterol and 4% Alismatis Lhizoma diet for 8 weeks. Sample II group fed with 1% cholesterol and 8% Alismatis Lhizoma diet for 8 weeks. The contents of serum total cholesterol, triglyceride, free fatty acid, phospholipid, HDL-cholesterol and LDL-cholesterol were measured, and fat accumulation in liver and the change of elastic and collagenous fiber in aortic wall were observed. The results were summurized as follows ; 1. The content of total cholesterol in the serum compared with control group tended to be decreased in sample group, and then sample I group showed a significant value. 2. The content of triglyceride in the serum compared with control group tended to be decreased in sample group, and then sample I group showed a significant value. 3. The content of free fat acid in the serum compared with control group tended to be decreased in sample group, but did not show a significance. 4. The content of phospholipid in the serum compared with control group tended to be decreased in sample group, and then sample I group showed a significant value. 5. The content of HDL-cholesterol in the serum compared with control group tended to be increased in sample group, and then sample II group showed a significant value. 6. The content of LDL-cholesterol in the serum compared with control group tended to be decreased in sample group, and then sample I group showed a significant value. 7. The lipophagy in liver compared with control group tended to be repressed in sample group. 8. The change of elastic and collagenous fiber lesion in tunica media of aortic wall, compared with control group tended to be repressed in sample group. According to the above results, it is assumed that Alismatis Lhizoma has a valid effect on hyperlipidemia. And yet, it needs to make further researches that sample I group showed more significant value than sample II group.
In order to investigate the effect of Lycii Radicis Cortex on hyperlipidemia, experimental studies were performed on hyperlipidemia rats. Hyperlipidemia model (controll group) was induced by 1% cholesterol fed-diet for 8 weeks. Sample I group fed with 1% cholesterol and 4% Lycii Radicis Cortex diet for 8 weeks. Sample II group fed with 1% cholesterol and 8% Lycii Radicis Cortex diet for 8 weeks. The contents of serum total cholesterol, triglyceride, free fatty acid, phospholipid, HDL-cholesterol and LDL-cholesterol were measured, and fat accumulation in liver and the change of elastic and collagenous fiber in aortic wall were observed. The results were summurized as follows ; 1. The content of total cholesterol in the serum compared with control group tended to be decreased in sample group, but did not show a significance. 2. The content of triglyceride in the serum compared with control group tended to be decreased in sample group, and then sample II group showed a significant value. 3. The content of free fat acid in the serum compared with control group tended to be decreased in sample group, and then sample II group showed a significant value. 4. The content of phospholipid in the serum compared with control group tended to be decreased in sample group, but did not show a significance. 5. The content of HDL-cholesterol in the serum compared with control group tended to be increased in sample group, and then sample I group showed a significant value. 6. The content of LDL-cholesterol in the serum compared with control group tended to be decreased in sample group, and then sample I group showed a significant value. 7. The lipophagy in liver compared with control group tended to be decreased in sample group. 8. The change of elastic and collagenous fiber lesion in tunica media of aortic wall, compared with control group tended to be decreased in sample group. According to the above results, it is assumed that Lycii Radicis Cortex has a valid effect on hyperlipidemia. Therefore, it seems to be applicable to the diseases related to hyperlipidemia.
In order to determine the effect of Sopungchukdamtang experimental studies were performed in Hyperlipidemia Rats. The contents of serum Total cholesterol, Triglyceride, Free fatty acid, Phospholipid, HDL-cholesterol and LDL-cholesterol were measured The results were summarized as follows; 1. The content of Total cholesterol in the serum compared with control group tended to be decreased in Sopungchukdamtang(34mg/l00g) group, but did not show a significance. Sopungchukdamtang (17mg/l00g) group showed a significant value. 2. The content of Triglyceride in the serum compared with control group tended to be decreased in Sopungchukdamtang(17mg/l00g) group and Sopungchukdamtang(34mg/l00g) group, but did not show a significance. 3. The content of Free fatty acid in the serum was significantly decreased in Sopungchukdamtang(17mg/l00g) group and Sopungchukdamtang(34mg/l00g) group. 4. The content of Phospholipid in the serum compared with control group tended. to be decreased in Sopungchukdamtang(34mg/l00g) group, but did not show a significance. Sopungchukdamtang(17mg/l00g) group showed a significant value. 5. The content of HDL-cholesterol in the serum compared with control group tended to be increased in Sopungchukdamtang(17mg/l00g) group, but did not show a significance. Sopungchukdamtang(34mg/l00g) group showed a significant value. 6. The content of LDL-cholesterol in the serum compared with control group tended to be decreased in Sopungchukdamtang(34mg/l00g) group, but did not show a significance. Sopungchukdamtang(17mg/100g) group showed a significant value. According to the above results, it is assumed that Sopungchukdam-tang has a valid effect on Hyperlipidemia.
This study was designed to investigate the effect of age on the lipid metabolism in the rats fed different diets. In experiment A male Wistar rats of 5 weeks of age and of 32 weeks of age were divided into low fat diet groups and high fat-cholesterol groups. The rats were sacrificed 1 week, 2 weeks and 4 weeks after experiment begins. Also after 4 weeks. the rats in low and high fat diet groups were tube-fed 500mg of choelsterol and were sacrified 3 days later. In experiment b, male Wistar rats of 4 weeks of age and of 6 months of age were divided into 2 groups of butter and cron oil groups. And then eachgroup were divided into 2 subgroups ; meal feeding and nibbling groups . Each diet was fed for 4 weeks. In experiment A, age of the rats and experimental diets did not affect the serum cholesterol and triglycerides concentrations were higher in rats fed high fat cholesterol diet than in those fed low-fat or high -fat diets, but age of the animals had no effect on liver lipid content. The weight and cholesterol content of epidymal fat pad, however were higher in adult rats than in young ones regardless of the diets fed. When the rats were challenged with 500mg cholesterol, the rates of increase in serum and hepatic cholesterol level were higher in adult rats compared to young rats regardless of the diets . On the other hand, the rate of increase of small intestinal cholesterol content was lower in adult rats than in young rats. In experiment B, serum cholesterol and triglyceride content were relatively higher in young rats than adult ones. Stored body lipid was higher in adult rats, as judged by epididymal fat pad weight and total carcass lipid. Meal frequency and the kinds of fat in the diet did not affect the serum choelstero concentration . The serum triglyceride levels. however, was higher in butter fed rats thancron oil fed ones. The cholesterol content of live rand epididymal fat pad was lower in butter fed groups than corn oil groups for both young and adult rats, but there was no difference in liver triglycerides livel.
The lowering effect of cholesterol in Sprague Dawley rats was investigated with panaxydol which was purified from the petroleum ether soluble fraction(PESF) of Korean red ginseng. The level of total cholesterol(TC), Triglyceride(TG) and low density lipoprotein(LOL)-cholesterol in serum was reduced by $48\%,\;47\%\;and\;41\%,$ respectively while high density lipoprotein(HDL)-cholesterol was in creased up to $29\%$ as compared with their control values when the panaxydol(20 umoles. 5 mq/kq/day) was adminstered by intraperitoneal rout for 3 consecutive days along with a $1\%$ cholesterol diet. The hepatic ester cholesterol content which was increased in proportion to the cholesterol content of the diet in the control, clearly decreased with panaxydol administration to about $40\%$ regardless of the two diet cholesterol content. $1\%\;or\;2\%.$ A threshold of supression on the serum lipid levels in both administration routes was observed: the maximium suppression in i.p. and p.o. administration was observed to be at 5mq/kq b.w. and in the range of 50 - 100 mg/kg b.w., respectively. Panaxydol may reduce serum lipid and cholesterol levels by inhibiting cholesterol absorption and/or by modulating the cholesterol metabolism. at least in part.
The effects of dietary cellulose on the lipid metabolism in albino rats were observed, especially the effects of dietary cellulose from three different sources; cereal, vegetable and pure-cellulose. The results were summarized as follows. 1. Dietary cellulose from rice bran and vegetable resulted in lowering of reserved lipid in the body and the effect of rice bran was remarkable as compare to that of vegetable. 2. But the fatty acids composition in serum, liver, gastrocnemius, small intestine and epididymal fat pad was unchanged by dietary cellulose. This means the effect of dietary cellulose was only to change the body fat in quantify and not in quality. 3. Cellulose from rice bran increased serum cholesterol content and maintained medium level of serum total lipid. Cellulose from vegetable decreased serum total lipid and cholesterol content. Pure-cellulose decreased also serum total lipid and cholesterol content but the effect was not as low as vegetable cellulose. 4. It need to be further investigated on the different effects of cellulose from three sources on serum cholesterol content, particularly the increasing effects of rice bran.
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