Effects of the addition of \beta-glucanase to barley-based layer diets were examined by feeding 200 Leghorn layers with corn-based (Control) and \beta-glucanase supplemented diets (Barley+ Enzyme). The results obtained are sumrrarized as follows. 1. There were no siginificant (P>0.05) differences in hen-day egg production(%) and average egg weight between two treatments, indicating that the \beta-glucanase supplemented barley could successfully replace the commonly used corn in the layer diets. 2. Although there was no statistical difference (P>0.05) between two treatments, the daily feed consumption was numerically high in layers fed the barly diet compared to the corn-based diet. 3. Availabilities of crude fat and crude fiber of the barley diet were significantly poor (P<0.05) as compared to corn diet. 4. The \beta-glucarase supplementation depressed the viscosity of barley diets and excreta from therm. 5. Both serum and egg yolk cholesterol were not significantly affected by the addition of \beta-glucarase in the barley based diet. Our data indicate that the barley grain supplemented with \beta-glucarase can be sucessfully used as an energy source of layer diet when there is a price advantage. Although some possibilities to produce low cholesterol egg were recognized in this study, further studies pertaining to long-term feeding experiment and elucidaton of the metabolic interrelationship between serum and yolk cholesterol, are required to confirm the result.
This study was performed to examine the effects of onion powder supplementation on lipid metabolism in male SD rats fed a high fat and high cholesterol diet. Experimental groups were control (C), high fat fed group (HF), high fat+onion powder intake (OP), high fat+quercetin intake (Q). The HF diet contained 1% cholesterol, 4% lard, 0.3% Na-taurocholate, and quercetin supplementation level was 0.1 g/kg diet. The OP group showed lower body weight gains compared to the control, while there was no significant difference in food efficiency ratio efficiency. When the proportion of fecal bile acids per total lipids was calculated, there was a significant decrease in the HF group compared to the control group, while the levels of the control group was same as that of the OP group. There was no significant difference between the HF and Q groups in bile acid/total lipid in feces. The amount of total cholesterol in liver increased significantly in HF group compared to the control group, while total cholesterol decreased significantly in the OP group compared to the HF group. There was a significant decrease in GOT (glutamic oxaloacetic transaminase) activity in OP and Q groups compared to the HF group. In conclusion, feeding onion powder to hyperlipidemic rates appeared to control weight gain, significantly lower the level of total cholesterol in the liver, and recover GOT activity. We also demonstrated that onion powder intake was more effective than quercetin intake.
In this study, ethanolic extracts from Hericium erinaceum cultivated with Artemisia capillaris (HEAC) were assessed for their ability to lower the cholesterol levels of male Sprague-Dawley rats fed a high-fat diet. Rats were randomly subdivided into seven test groups. Each group contained eight rats fed a high-fat diet during a growth period lasting 4 wk. Supplementation with the extracts was performed once a day for 2 wk after the high-fat diet. The control group (rats fed a high-fat diet) showed a high efficiency ratio (feed efficiency ratio) value compared to the normal group. Biochemical parameters, including total cholesterol (TC), low-density lipoprotein-cholesterol (LDL-c), and triglyceride (TG) levels dramatically increased in the control group compared to the normal group. High-density lipoprotein-cholesterol (HDL-c) content in the control group was also significantly lower relative to the normal group. Two positive control groups, treated with simvastatin and atorvastatin, had lowered TC, LDL-c, and TG levels, and increased HDL-c content compared to the control group. Treatment with the tested extracts, including HEAC, ethanolic extracts from Hericium erinaceum, and ethanolic extracts from Artemisia capillaris reduced TC, LDL-c, and TG levels and elevated HDL-c content in the hyperlipidemia rats. The atherogenic index and cardiac risk factor values for the HEAC-treated group were 0.95 and 1.95, respectively. Simvastatin- and atorvastatin-treated groups showed atherogenic index values of 1.56 and 1.69, respectively, and cardiac risk factor values of 2.56 and 2.69, respectively. These results show HEAC possesses an ability to cure hyperlipidemia in rats and may serve as an effective natural medicine for treating hyperlipidemia in humans.
Journal of Physiology & Pathology in Korean Medicine
/
v.17
no.1
/
pp.190-202
/
2003
The purpose of this study is to examine the effects of Gamimahaenggamseok-tang and Typhae Pollen on Body Weight and Lipid Metabolism of Rats with Obesity induced by high fat diet. Sixty four male Sprague-Dawley rats, around 250g of B.W., were divided into normal, control, sample A and sample B groups. Normal groups were orally administrated with saline and normal animal feed, and control groups with saline and high fat diet, sample A with liquid extract of Gamimahaenggamseok-tang and high fat diet, and sample B with liquid extract of Typhae Pollen and high fat diet. After 4 and 8 weeks administration, body weight, epididymal fat pad weight, weight of liverㆍspleenㆍkidney, abdominal skin fold thickness, feed intake, and lipid level in liver tissue on morphological examination; total cholesterol, HDL-cholesterol, LDL-cholesterol, triglyceride, free fatty acid, and phospholipid on serum examination were measured in all of the groups.
The purposes of this study were to investigate effects of Bambusae Caulis in Liquamen(BCL) on antioxidant activities and inhibitory activities of HMG-CoA reductase of in vitro, and lipid metabolism in rats fed the high cholesterol diet in vivo. Sprague-Dawley male rats weighing l00$\pm$10 g were devided into five groups ; normal group(NOR), the high cholesterol diet administered group(1 $\%$ cholesterol and 0.25$\%$ sodium cholate)(CON), 5$\%$ BCL administered group (5BL), the high cholesterol diet and 5$\%$ BCL administered group (5BCB) and the high cholesterol diet and 10\$\%$ BCL administered group (10BCB), respectively. In antioxidative activities of BCL using Rancimat in vitro, 1.25 diulent and original solution were more excellent activities than the control group, and in inhibiting activities of HMG-CoA reductase, BCL was shown inhibitory effects compared with the control, in dose dependent manners, especially 57.9$\%$ in original solution and 36.0$\%$ in 1.25 diulent. The growth rate of the control group was higher than the normal group, wheras the group given 5$\%$ BCL and 10$\%$ BCL were gradually decreased, especially the most excellent effect in 10$\%$ BCL. Serum levels of total cholesterol, LDL-cholesterol, triglyceride and free cholesterol were significantly decreased, whereas levels of HDL-cholesterol and phospholipid were increased, but not significantly. BCL administered group was increased in HDL-cholesterol/total cholesterol ratio and lowered antherogenic index. The activities of AST in serum were rather lowered in the BCL administration group than the cholesterol diet group, but not in ALT and ALP. The hepatic contents of total cholesterol were lowered significantly than control group, but not in triglyceride. Therefore, it might be expected that BCL is believed to be a possible protective or curative effects for fatty livers and hyperlipidemia-induced by a hi~h cholesterol diet.
Objectives : In this research, it was investigate that had effects on acupuncture techniques of $HT_{8}$(Shaofu) and $LR_{2}$(Xingjian) acupoints in high fat rats. We recorded data of weight gain, food intake, food efficiency, total cholesterol, triglyceride, AST, ALT, r-GTP, total bilirubin on rats fed high fat diet for 10 weeks. Methods : We divided experimental groups into four. Group of high-fat diet feeding and no treatment was control, group of high-fat diet feeding and acupuncture at $HT_{8}{\cdot}LR_{2}$ was Acu-1, group of high-fat diet feeding and acupuncture at $HT_{8}{\cdot}LR_{2}$ and rotated counter-clockwise 36times was Acu-2, high-fat diet feeding and acupuncture at $HT_{8}$(body direction)${\cdot}LR_{2}$(lower limb direction) and rotated counter-clockwise 36times was Acu-3. Results : In Acu-3 group, body weight on 2 weeks after starting acupuncture, food efficiency and the level of serum total cholesterol were decreased, and the level of HDL-cholesterol was increased. In Acu-1 group, the level of triglyceride was increased but ALT was decreased. Conclusions : These results suggest that treatment of acupuncture at $HT_{8}$(body direction)${\cdot}LR_{2}$(lower limb direction) and rotated counter-clockwise 36times may be having the influence on high fat by controlling the level of serum total cholesterol and HDL-cholesterol.
This study was performed to investigate the effects of Sineui-Dae (Sasa coreana Nakai, a kind of bamboo) extracts on the improvement of serum lipid composition by using rats fed a hypercholesterol diet for 4 weeks. The experiment animals were administered with the following diets; high cholesterol diet group (HC diet) as a control and three supplemented groups with high cholesterol diets (HCW, HCM or HCH diet). Three kinds of extracts were prepared by orderly extraction with hexane, methanol, and water. We measured free cholesterol, cholesteryl ester, total cholesterol LDL- and HDL-cholesterol triglyceride and phospholipid in the serum of rats in three experimental and control groups. There were no significant differences in body weights and feed intakes between the HC control group and the extract supplemented groups. The levels of total cholesterol and LDL-cholesterol in the serum of extract supplemented groups were lower than that of the group fed with HC diet only. Serum HDL-cholesterol levet which is known as an antiatherosclerosis factor, was higher in all groups supplemented with bamboo extract by 17.2-21.9% compared to the HC control group. All groups supplemented with bamboo extracts showed the lowering effect of atherogenic index compared to the HC control group (HC group: 2.96${\pm}$0.08, HCM group: 1.48${\pm}$0.02, HCW group: 1.69${\pm}$0.04, HCH group: 1.84${\pm}$0.01). Furthermore, serum triglyceride and phospholipid decreased significantly in the HCM diet compared to the HC control diet. These results suggest that Sineui-Dae bamboo extract, especially methanol extract, has improving effects on hyperlipidemia of rats fed a high cholesterol diet.
This study was intended to examine whether dehydroepiandrosterone (DHEA) and dietary fat level or source could modulate glutathione utilizing detoxifying system activity and the cytosolic NADPH generation in rat liver. Male Sprague-Dawley rats were fed semipurifed diet containing either 2%(w/w) corn oil (low level of corn oil diet: 5 ca% of fat) 15% corn oil (high level of corn oil diet: 31 cal% of fat) or 13% sardine oil plus 2% corn oil(high level of fish oil diet: 31 cal% of fat) for 9 weeks. Half of the rats in each diet group were fed a diet supplemented with 0.2% DHEA (w/w). DHEA administration increased plasma total cholesterol level in low corn oil diet-fed rats. The high fish oil diet significantly decreased plasma total cholesterol level compared to the high corn oil diet. Plasma triglyceride level was not significantly changed by DHEA administration and dietary fat level and source. Fasting plasma glucose level was increased by DHEA administration and fish oil diet. Glucose 6-phosphate dehydrogenase activity in liver tissue was significantly increased by DHEA administration and high fat diet, especially fish oil diet. Malic enzyme activity in liver tissue was significantly increased by DHEA administration and high fat diet, especially fish oil diet. Malic enzyme activity in liver tissue was significantly increased by DHEA administration. DHEA suppressed the glutathione peroxidase, glutathione-dependent enzymes compared to the low corn oil diet, while fish oil diet elevated the activity of glutathione peroxidase and glutathione reductase compared to corn oil diet. These results suggest that DHEA administration and high level of corn oil diet may suppress the cellular detoxifying system activity through reduction of glutathione utilization, while the fish oil diet did not show these effects.
This study was performed to investigate the influence of dietary and extract foods from A. capilliaris Thunberg on plasma and liver lipid metabolism in male Sprague-Dawley rats. For the experiment of liver and plasma lipid metabolism, Rats were find diets containing normal concentrations of fat or high concentrations of lard and two different preparations of A. capillaris Thunberg ; control diet (group C),50 mg/kg body weight A. capillary Thunberg methanol extract (group M), 6 g/kg diet A. capillary Thunberg dried powder (group P), high lard control diet (group L), 50 mg/kg body weight A. capillaris Thunberg with high lard (group LM) and 6 g/kg diet A. capillary Thunberg with hi\ulcorner lard (group LP). Effects of A. capillary Thunberg on plasma total cholesterol. High-density lipoprotein (HDL) cholesterol, Atherogenic index, triglyceride, plasma and liver peroxide contents, fatty acid composition of liver lipid and the distribution of fat droplets of liver. Supplementation of A. capillaris Thunberg resulted in lower plasma cholesterol, atherogenic index and triglyceride, and higher HDL-cholesterol in rats find high lard diets. However, these effects were not observed with low level of fat (groups C, M and P). A shift caused by feeding high lard diets in increased plasma and liver peroxides, saturated fatty arid composition of liver lipid and the more frequent distribution of fat droplets in liver could be reversed by feeding A. capillary Thunberg. This study suggests that A. capillary Thunberg co alter lipid metabolism in plasma and liver.
This study evaluated the effect of Allium hookeri roots on lipid metabolism of the serum, liver, and adipose tissues induced by a high-fat diet in male Sprague-Dawley rats. The rats were divided into four groups with 8 rats per group for 4 weeks: the normal-diet group (N), the high-fat diet (HFD) group, the HFD containing 3% Allium hookeri (HFD-A3) group, and the HFD containing 5% Allium hookeri (HFD-A5) group. The results showed that the body weight gain and food intake of rats in the HFC-A3 and HFC-A5 groups were significantly decreased compared with those in the HFD group. The epididymal adipose tissue weight in the HFD-A5 group was significantly decreased compared with those in the HFD group, and adipose tissue weights of liver and mesenteric adipose tissues in the HFD-A3 and HFD-A5 groups were significantly decreased compared with those in the HFD group. Serum triglyceride, total cholesterol and LDL cholesterol concentrations, atherogenic index, and cardiac risk factor were significantly lower in the HFD-A3 and HFD-A5 groups than in the HFD group. Serum lipid profiles, as well as ALT and AST activities did not show any difference in all groups. Serum ALP and LDH activities were suppressed in the HFD-A5 group compared with those in the HFD group. The hepatic triglyceride and total cholesterol levels of rats in the HFD-A5 group was significantly lower than those in the HFD group. Moreover, triglyceride and total cholesterol in the epididymal and mesenteric adipose tissues were significantly lower in the HFD-A5 group than in the HFD group. These results demonstrated that the intake of Allium hookeri showed a hypolipidemic effect, changing the lipid metabolsim of a high-fat diet induced rats.
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