Park, Yoon-Shin;Cha, Min-Ho;Yoon, Yoo-Sik;Ahn, Hong-Seok
Nutritional Sciences
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v.8
no.1
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pp.3-9
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2005
Obesity can be defined as a metabolic disease due to an increased fat accumulation in the body caused by an imbalance of calorie intake and output The prevalence of obesity has increased substantially over the past 2-3 decades in developed and developing countries. The health impact of weight gain is so marked that obesity has now been classified as a major global public health problem In order to investigate the effect of diet conversion and oral administration of Platycodon grandiflorum extracts on the treatment of obesity, male Spraque-Dawley rats were divided into four groups: a group converted to normal diet (Control group), a group maintained high fat (30%) diet (H), and two groups with Platycodon grandiflorum extract added to the previously mentioned two groups. All animals were fed high fat diet for 7 weeks to induce the obesity. Then they were divided as mentioned above. Animals were fed experimental diet and Platycodon grandiflorum extract (150 mg/ml/rat/day) for 7 weeks. Body weight, adipose tissue weight (subcutaneous, epididymal, peritoneal fat pads) and serum lipids (total cholesterol and triglyceride) showed some differences among groups. The Platycodon grandiflorum feeding markedly decreased both body weight and adipose tissue weight in control group compared to H, high fat diet maintaining, group. Platycodon grandiflorum extracts significantly decreased the concentrations of serum lipids compared to H group. Fat cell numbers and sizes were significantly reduced in the oriental medicinal herb extract administrated group. Increased fatty acid binding protein (FABP) expression in high fat diet group was decreased by the dietary conversion to normal diet and the oral administration of Platycodon glandiflorum extracts. In contrast, there was no significant effect on FABP expression in the high fat maintenance group. In this study, the conversion from high fat diet to low fat or normal diet had a beneficial effect on body weight loss and serum lipid profiles. Dietary Platycodon glandiflorum extracts had an additive beneficial effect on the prevention and treatment of obesity.
To examine the cholesterol-towering effects of extruded products made with cassava starch (CS) and blends of cassava starch with either resistant starch (CS-RS) or oat fiber (CS-OF) hamsters were fed with diets containing a high-cholesterol (2%) and high-fat (17%) diet for 20 days. Hamsters fed with a diet containing no cholesterol were used as a control. Total cholesterol (TC) levels in the CS-RS and CS-OF groups were significantly (p>0.05) lower compared to the CS group by 11.5% and 8.5%, respectively. Also, the diets containing fibers decreased the value of low-density lipoproteins plus very low-density lipoproteins fraction by 32.4% (CS-RS diet) and 51.7% (CS-OF), respectively, as compared to the CS diet. Total lipid values were significantly (p<0.05) lower in hamsters fed the CS-RS diet (916 mg/dL) and CS-OF diet (964 mg/dL) as compared to those fed the CS diet (1661 mg/dL). The results obtained in this study suggest that extruded products containing cassava starch blended with either resistant starch or oat fleer, could prevent health problems associated with high levels of cholesterol and hypertriglyceridemia induced by a high cholesterol and fat diet.
Objectives : This experimental study was designed to investigate the effect of SBY-III extract on the weight, cell size of epididymal fat-pad, fat accumulation area in liver, serum lipid level and UCP1 mRNA in brown adipose tissue of high fat diet-fed obese rats continued by high fat diet and regulated by normal Diet. Methods : The body weight gain, weight of the internal organs(epididymis, liver, brown adipose tissue), insulin, triglyceride, total cholesterol, total lopod, free fatty acid, expression of UCP1 mRNA were measured in high fat diet-fed obese rats continued by high fat diet and regulated by normal diet. The experimental study are divided into exp-I and exp-II. Each study was administered normal diet, high fat diet and SBY-III according to each situation. Normal group is normal diet for 8 weeks. Exp-I are divided into control group(high fat diet for 8 weeks) and sample group(high fat diet for 8 weeks and SBY-III for last 2 weeks). Exp-II are divided into control group(high fat diet for 6 weeks and normal diet for 2 weeks) and sample group(high fat diet for 6 weeks and normal diet with SBY-III for 2 weeks). These were then compared mutually. Results : 1. Irrespective of diet control, sample group taken SBY-III showed the more effective decrease of weight gain than control group and diet control-fed sample group with SBY-III showed the more effective decrease of weight loss including weight gain than control group. 2. Irrespective of diet control, sample group taken SBY-III showed the more effective decrease cell size of epididymal fat-pad, fat accumulation area in liver than control group. 3. Non diet control-fed sample group taken SBY-III showed the more effective decrease of serum triglyceride, total lipid, free fatty acid than control group and diet control-fed sample group taken SBY-III showed the decrease of serum triglyceride, free fatty acid than control group. 4. Only diet control-fed sample group taken SBY-III showed the decrease of UCP1 volume. Conclusions : These results shows that SBY-III has effects on anti-obesity, especially keeping pace with diet control.
Journal of the Korean Society of Food Science and Nutrition
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v.28
no.3
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pp.632-637
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1999
The purposes of this study is to investigate the effect of Rhus chinensis gall extract on liver function, plasma lipid composition and antioxidant system in the obese rats with high fat diet for seven weeks. Thirty two male rats of Sprague Dawely strain were divided into four groups. they are normal group (basal diet), control group(high fat diet), III group(high fat diet with Rhus chinensis gall extract 25mg/kg body weight per day) and IV group(high fat diet with Rhus chinensis gall extract 250mg/kg body weight per day). Rats in III group and IV group were administered with Rhus chinensis gall extract accordingly. Weight gains showed a tendency to decrease in rat with Rhus chinensis gall extract group but showed no differences among treatment groups. Food intake and Food efficiency ratio were not significantly different among treatment groups. Plasma total cholesterol showed a tendency to decrease in Rhus chinensis gall extract group. HDL cholesterol showed a tendency to decrease in 25mg/kg of Rhus chinensis gall extract group. However, in the 250mg/kg of Rhus chinensis gall extract group, these values showed no significant difference compared to the control group (p<0.05). GPT activities showed no significant difference among treatment groups. GOT activities showed a tendency to decrease in the groups of Rhus chinensis gall extract groups. Lipid peroxide level was significantly higher in control group than those of normal group. In Rhus chinensis gall extract groups, lipid peroxide level showed a tendency to decrease, but glutathione peroxidase activity was progressively increased. Results of our research in this paper show that Rhus chinensis gall extract might improve liver function, antioxidant system and plasma lipid composition in rats with high fat diet.
There is a marked increase in geriatric disease, especially liver disease, due to the continuous increase in alcohol and fat consumption. Since the fatty liver, induced by alcohol or fat, is basically from abnormalities in the lipid metabolism, it is possible that fatty acid binding protein(FABP) which is related to the fatty acid metabolism may also be abnormal in these livers. FABP is a small molecular weight protein family present in cytosol in high concentration. It has been proposed as a fatty acid transfer protein and as a binding protein responsible for controlling intracellular free fatty acid concentration. In this research, we have examined the relationship between liver FABP and fatty liver induced by alcohol or high cholesterol diet. Rats were fed one of either semipurified liquid diets; control diet containing 65% carbohydrate, 20% protein, and 15% fat or high cholesterol diet containing 1%(w/w) cholesterol or alcohol diet containing 37% of alcohol instead of carbohydrate. After 5 weeks of feeding period, all rats received commercial chow diet for 5 weeks to examine recovery effect. Liver and blood samples were collected at 0, 1, 3, 5 and 10 weeks to analyze lipid compositions. FABP was purified from liver cytosol and injected to rabbit to obtain antiserum. Liver FABP amount was determined by SDS-PAGE and western blotting methods. Fatty acid binding capacity was determined by binding of 14Cpalmitate with the delipidated liver cytosol. Consumption of alcohol increased serum cholesterol, triglyceride concentration and decreased HDL-cholesterol concentration after 5 weeks. Serum apolipoprotein B concentration increased after 3 weeks and LDL-cholesterol and apolipoprotein A concentration changed after 1 week. Liver cholesterol and triglyceride concentration increased after 3 weeks. Consumption of high cholesterol diet changed liver and serum lipid composition after 3 weeks. Swiching to normal diet for 5 weeks did not normalize most of lipid composition in serum and liver except serum and liver except serum cholesterol, triglyceride and liver cholesterol. Liver cytosol FABP content and the fatty acid binding capacity decreased dramatically after 1 week with alcohol consumption. This results indicate that FABP content changes before the changes before the changes of blood or liver lipid composition, suggesting changes of FABP may cause development of the fatty liver induced by alcohol and can be used as an index of detecting a early development of fatty liver.
BACKGROUND/OBJECTIVES: The leaves of Moringa oleifera (MO) and Moringa stenopetala (MS) commonly grown in Ethiopia possess potential nutritional and medicinal value. The aim of this study was to evaluate the nutritional and functional characteristics of the dried leaf powder from two Moringa species to develop sustainable nutritional supplements for Ethiopians from locally grown plant sources. MATERIALS/METHODS: Freshly harvested and air-dried MO and MS leaves were authenticated and the nutritional contents, such as protein, ash, lipids, and selected vitamins and minerals, were analyzed using standard analytical procedures. Amino acid compositions were also determined by an amino acid analyzer. Nine-week-old mice were randomly divided into four groups to investigate the anti-obesity effects of Moringa. The first group was fed a basal diet, the second group a high-fat diet, and the others were fed a high-fat diet containing 0.1% Moringa leaf powder from each species. After seven weeks, serum indices related to lipid profiles from each mouse were analyzed. RESULTS: The present study revealed high protein (28-29%) and ash (7-11%) contents. Glutamic acid, aspartic acid, proline, and leucine were the most abundantly found amino acids in both species. The predominant minerals in the leaf powder were calcium (826-1,530 mg/100 g), potassium (794-904 mg/100 g), and magnesium (286-431 mg/100 g). Pyridoxine (475.06 mg/100 g) and vitamin E (34.2 mg/100 g) were found only in MS. Niacin was found only in MO at 32.21 mg/100 g, whereas ascorbic acid was found in both species (3.89 and 6.19 mg/100 g dry weight for MO and MS, respectively). The results of the animal study showed that mice on a high-fat diet containing 0.1% MO leaf powder alleviated the elevation of cholesterol, triglycerides, and low-density lipoprotein cholesterol induced by the high fat diet. MO was more effective than MS in preventing hypercholesterolemia and fat deposition. CONCLUSION: The findings in this work confirmed that Moringa leaves of both MO and MS possessed high nutritional value but MO was better at preventing the harmful effects of the high-fat diet than MS.
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.
We investigated the effect of high density lipoprotein from egg yolk (EYHDL) on serum, hepatic and fecal lipid and fatty acids (FAs) levels and on gene expression involved in FAs metabolism. Male KM mice were fed either normal diet (ND; n=20), high fat diet (HFD; n=20), or high fat diet containing EYHDL (EYHDL; 0.6 mg/g, every day by oral gavage, n=20) for 100 days. At the end of the experiment, the effects of treatments on biochemical parameters, FAs profiles and involved gene expression were analyzed. Our results revealed that EYHDL markedly suppressed the body weight gain, accumulation of abdominal fat tissues, serum concentrations of LDL-cholesterol (LDL-C) and triglycerides, hepatic triglycerides and cholesterol accumulation, while increased serum concentration of HDL-cholesterol (HDL-C). EYHDL intake also increased total cholesterol (TC) excretions compared with HFD group. Moreover, it alleviated the severity of fatty liver and improved glucose and insulin tolerance compared with HFD. More importantly, EYHDL partially normalized FAs profiles in serum, liver and fecaces and neutralized the HFD-induced upregulation of SREBP-1c, Acaca, Fasn, GPAT and Scd1. In conclusion, our findings indicate that EYHDL may have the potential to improve metabolic disturbances that occur in HFD mice and can be considered as an appropriate dietary recommendation for the treatment of metabolic syndrome (MetS).
Journal of the Korean Society of Food Science and Nutrition
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v.45
no.2
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pp.161-166
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2016
This study was designed to investigate whether or not onion peel extract can lower blood lipid levels in rats exposed to cigarette smoke (CS) extract with a high-fat diet. Initially, male Sprague-Dawley rats were housed individually in a stainless steel, wire-bottomed cage with free access to AIN-93G diet. Rats were weight-matched and assigned to the following five groups: 1) control rats (CT) fed standard AIN-93G diet alone, 2) control rats exposed to CS extract (CT+CS), 3) high-fat group (HF) fed standard AIN-93 diet supplemented with 3% lard and 0.2% cholesterol, 4) high-fat group exposed to CS extract (HF+CS) fed standard AIN-93 diet supplemented with 3% lard and 0.2% cholesterol plus CS extract, and 5) high-fat plus onion peel (OP) extract group exposed to CS extract (HF+CS+OP) fed standard AIN-93 diet supplemented with 3% lard, 0.2% cholesterol, and onion peel extract (20 mg/17 g diet) plus CS extract. Using this feeding protocol, all animals completely consumed their respective diets throughout the 6 week duration. Blood was collected via the orbital sinus at weeks 0, 3, and 6, following overnight food deprivation. OP extract feeding resulted in significant reductions in blood triglyceride, total cholesterol, and non-HDL-cholesterol. Further, serum activities of aspartate transaminase and alanine transaminase were significantly reduced by OP extract at 6 weeks. These results provide clear evidence that onion peel extract has a profound inhibitory effect on blood lipids in rats exposed to CS extract. These findings suggest that OP extract can be used as an effective means in alleviating the serum lipid concentration after CS exposure.
Objectives : In order to investigate the anti-obesity effects of Wolbi-tang(here in after referred to WBT) on the obese gene and obese inhibitory, C57BL/6 mice were induced by high-fat diet. Methods : C57BL/6 mice were divided into 5 groups(normal, only high-fat diet, high-fat diet with Reductil, high-fat diet with WBT 400, 200 mg/kg extract) and fed for 5 weeks. And observed body weight change, total cholesterol, low density lipoprotein cholesterol(LDL-cholesterol), high density lipoprotein cholesterol (HDL-cholesterol), triglyceride, glucose, leptin change, alanine transaminase(ALT), aspartate transaminase(AST), serum creatinine, the expression of ${\beta}3$-adrenergic receptor(${\beta}3AR$), leptin, uncoupling protein(UCP2) gene in 3T3-L1 adipocyte, 3T3-L1 adipocyte proliferation, histological analysis of adipose tissue and liver tissue. Results : 1. Refer to cell cytotoxicity, viability of human fibroblast cells(hFCs) showed not significant changes. 2. The amount of ALT, AST was decreased significantly in WBT 400 mg/kg, 200 mg/kg groups. The amount of creatinine showed not significant changes. 3. Body weight was decreased significantly in WBT 400 mg/kg, 200 mg/kg groups. 4. The amount of total cholesterol and triglyceride was decreased significantly in WBT 400 mg/kg, 200 mg/kg groups. LDL-cholesterol was decreased and HDL-cholesterol was increased significantly in WBT 400 mg/kg groups. 5. The amount of glucose was decreased significantly in WBT 400 mg/kg groups. 6. The amount of serum leptin was decreased significantly in WBT 400 mg/kg, 200 mg/kg groups. 7. The revelation of ${\beta}3AR$ in 3T3-L1 adipocyte was increased significantly in WBT $100{\mu}g/ml$, $50{\mu}g/ml$ groups. The revelation of leptin was decreased significantly in WBT $100{\mu}g/ml$, $50{\mu}g/ml$ groups. The revelation of UCP2 was decreased significantly in WBT $100{\mu}g/ml$ group. 8. 3T3-L1 adipocyte proliferation was decreased significantly in WBT $100{\mu}g/ml$, $50{\mu}g/ml$ groups. The size of adipocyte was decreased relative to the control group in WBT 400 mg/kg group. 9. The adipose vacuoles in liver tissue was decreased relative to the control group. Conclusions : These results suggested that WBT has inhibitory effects of obesity. WBT might be applicated on treatment of obesity and metabolic syndrome. Further studies analysing its effects were needed.
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