• Korean journal of food and cookery science
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• v.32 no.6
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• pp.818-827
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• 2016

Purpose: This study was conducted to investigate the effect of freeze-dried Gastrodiae rhizoma powder (GR) on the liver function and alcohol metabolism in alcohol treated rats. Methods: The rats were administered various concentrations of GR (100 mg, 200 mg, 300 mg/kg B.W.) for 3 days 1 hour before 50% (v/v) ethanol (3 g/kg B.W.) administration. Two tests focusing on liver function and alcohol metabolism in acute alcohol treatment were carried out. Results: Glutamic oxaloacetic transaminase activity was significantly increased by alcohol treatment, and was decreased by 100 mg GR administration. Acute ethanol treatment led to significant increase in alcohol and acetaldehyde levels of serum and liver. However, 100 mg GR administration led to a significant reduction in increased alcohol level in the serum with decreased alcohol dehydrogenase (ADH) activity and increased acetaldehyde level in liver was significantly reduced by three levels. Conclusion: These results suggest that GR can be effective in enhancing liver function and alcohol metabolism in the alcohol-treated rats. Studies on the appropriate dosage of GR should further be developed to treat alcohol detoxification and stimulate liver function.

• Journal of Microbiology and Biotechnology
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• v.26 no.2
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• pp.295-308
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• 2016

This study investigated the effects of a flavonoid-rich ethanol extract of persimmon leaf (PL), an ethanol extract of Citrus junos Sieb (CJS), and a PL-CJS mixture (MPC) on mice fed a high-fat diet (HFD). We sought to elucidate the mechanisms of biological activity of these substances using measurements of blood coagulation indices and lipid metabolism parameters. C57BL/6J mice were fed a HFD with PL (0.5% (w/w)), CJS (0.1% (w/w)), or MPC (PL 0.5%, CJS 0.1% (w/w)) for 10 weeks. In comparison with data obtained for mice in the untreated HFD group, consumption of MPC remarkably prolonged the activated partial thromboplastin time (aPTT) and prothrombin time (PT), whereas exposure to PL prolonged aPTT only. Lower levels of plasma total cholesterol, hepatic cholesterol, and erythrocyte thiobarbituric acid-reactive substances, hepatic HMG-CoA reductase, and decreased SREBP-1c gene expression were observed in mice that received PL and MPC supplements compared with the respective values detected in the untreated HFD animals. Our results indicate that PL and MPC may have beneficial effects on blood circulation and lipid metabolism in obese mice.

• The Korea Journal of Herbology
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• v.34 no.1
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• pp.67-74
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• 2019

Objectives : Alcohol hangover is a common phenomenon which basically occurs after heavy drinking. Moreover, heavy alcohol consumption leads to acute and chronic diseases. We investigated the effect of herbal mixture (SJ) on alcohol metabolism in serum or/and liver. Methods : 5W-old Sprague Dawley rats were used for the study. To overnight fasted rats, 0.9% saline or SJ extract was administrated per os before alcohol treatment. Then, 40% alcohol was orally administrated to all rats in 30 mins. Ethanol, acetaldehyde concentrations, alcohol dehydrogenase (ADH), acetaldehyde dehydrogenase (ALDH) activities were measured by assay kits. Aspartate aminotransferase (AST) and alanine transaminase (ALT) were measured by analyzer. Results : Ethanol and acetaldehyde concentrations lowered in SJ groups compared with CON group. Especially, acetaldehyde concentration significantly decreased in SJ groups compared with CON group. AST and ALT levels tended to increase in SJ groups compared with CON group but there was no significant difference between CON group and SJ groups. ADH activity in serum was higher in SJ groups than CON group but no significant difference in liver. ALDH activity in both serum and liver showed significantly increased in SJ groups compared with CON group. Conclusions : Treatment of SJ extract showed not only reducing concentration of alcohol and acetaldehyde but also increasing activities of ADH and ALDH. These results suggest SJ may influence in alcohol metabolism via control of metabolic enzyme activities and metabolite. Therefore, SJ, herbal mixture, might have a function of preventing hangover after drinking alcohol.

• Journal of the East Asian Society of Dietary Life
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• v.16 no.3
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• pp.281-291
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• 2006

This study investigated the effect of the powder of the small water dropwort(PSWD) and brewer's yeast(BY) on the liver function and serum lipid metabolism in alcohol-consuming rats. Male Sprague-Dawley rats were fed an AIN-93 diet(control), ethanol plus control(A), ethanol plus PSWD(AS), ethanol plus BY(AB), ethanol plus PSWD and BY(ABS) diet for seven weeks. The feed intake, body weight gain and feed efficiency ratio were the lowest and in the alcohol-consuming groups. The weight of the liver, kidney, spleen and epididymis of the anatomized rats showed positive correlation with the body weight gain. Compared with group A, the content of the lipid in the serum was significantly low in the AS and AB groups. In particular, it was the most effective in the AB group. The GOT, GPT and ALP level in the serum showed a significant difference in the alcohol-consuming groups. Compared with the A group, they showed a significantly low difference in the AS and AB groups. The total cholesterol and triglyceride levels in the liver were similar in all groups. The weight of the feces was significantly different but there was no significant difference in the content of total cholesterol and triglyceride levels in the AS and AB groups. These results suggest that BY and PSWD improve the liver function, and had an effect on reducing the lipid content of the serum and feces of alcohol-consumed rats. In particular, the effect of BY which contained protein, dietary fiber and vitamin B was higher than that of PSWD.

• The Korean Journal of Food And Nutrition
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• v.25 no.3
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• pp.546-553
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• 2012

This study was performed to evaluate the biological activity and protective effect of Cassia tora ethanol extracts against D-galactosamine induced hepatotoxicity in rats. Male Sprague-Dawley rats were grouped into normal group, D-galactosamine treated group(control), D-galactosamine plus 0.25% Cassia tora extracts treated group and D-galactosamine plus 0.5% Cassia tora extracts treated group. Normal and control group were fed control diet and Cassia tora extracts treated groups were fed experimental diets containing 0.25% or 0.5% Cassia tora ethanol extracts for 5 weeks. Body weight gain and liver weight of rats were not significantly different between groups. Cholesterol and triglyceride concentrations in serum and liver were significantly lower in rats treated only with D-galactosamine compared to normal group, and improved in Cassia tora extracts supplemented rats. D-galactosamine treatment significantly increased serum aspartate transaminase, alanine transaminase, gamma glutamyl transferase and alkaline phosphatase, however, the activities of aspartate transaminase and alanine transaminase were significantly decreased in Cassia tora extracts supplemented rats when compared with D-galactosamine treated control group. Cassia tora extracts significantly suppressed the D-galactosamine-induced elevation of liver thiobarbituric acid reactive substances(TBARS) contents. Superoxide dismutase activity was decreased by D-galactosamine treatment, however by the supplementation of Cassia tora ethanol extracts, significantly increased in dose-dependent manner. Glutathione peroxidase activity in rats fed diets containing Cassia tora extracts was decreased compared to control. Based on these results, we concluded that Cassia tora ethanol extracts may prevents the D-galactosamine-induced hepatotoxicity probably via an antioxidant mechanism.

• Journal of Nutrition and Health
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• v.32 no.4
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• pp.337-352
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• 1999

The effects of dried leaf powders and ethanol extract of persimmon, green tea and pine needle on lipid metabolism, lipid peroxidation and antioxidative activity were investigated in rats. Forty-nine male Spargue-Dawley rats weighing 107.8$\pm$1.8g were blocked into seven groups according to body weight. Rats were raised for four weeks with diets containing either 5%(w/w) dried leaf powders of one of three different Korea traditional teas, persimmon(Diospyros kaki Thunb), green tea(Camellia Sinensis O.Ktzc)or pine needle(pinus Koreansis Sieb. Et Zucc), or ethanol from equal amounts of each dried tea powder. Food intake, weight gain, food efficiency ratio, and weights of liver, kidney and epididymal fat were significantly higher in the green-tea-powder group, and significantly lower in the pine-needle-powder and pine-needle-extract groups. Persimmon-leaf powder was found to decrease plasma total lipid, triglyceride and cholesterol concentration by increasing fecal total lipid triglyceride and cholesterol excretions. Liver cholesterol concentration was significantly lower in the green-tea and pine-needle-extract groups. Red-blood-cell superoxide dismutase(SOD) and glutathione peroxidase(GSH-px) activities were significantly increased in rats fed green-tea extract. Liver SOD activity was increased in rats fed pine-needle powder or extract, and liver GSH-px activity was increased in rats fed greentea powder. Plasma and liver thiobarbituric acid reactive substance(TBARS) concentration were both decreased in rats fed dried leaf posers or extracts of persimmon or green tea. It is believed that high vitamin E levels in persimmon leaf, and high flavonoid, beta-carotene and vitamin C levels in green tea effectively inhibited lipid peroxidation. In conclusion, persimmon and green tea leaves were effective in lowering lipid levels and inhibiting lipid peroxidation in animal tissue, while pine needles were effective and lowering body weight gain. From these results, persimmon and green tea leaves can be recommended in the treatment and prevention of chronic discorders such as cardiovascular disease, cancer and aging. As ethanol extracts from these teas were also effecitive in lowering tissue lipid levels and inhibiting lipid peroxidation, we recommend the use of discarded tea grounds for this.

• YAKHAK HOEJI
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• v.50 no.5
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• pp.308-312
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• 2006

Alpinia katsumadai is used in traditional oriental medicine as an antiemetic and for treatment of stomach disorders. This study was to investigate the effect of the 50% methanol extract of Alpinia katsumadai and Puerariae thunbergiana on ethanol metabolism in rat. The administration of 50% methanol extract of Alpinia katsumadai significantly decrease the ethanol concentration in rat. The AUC and Cmax of Alpinia katsumadai was 3.1 and 2.4 times less than the control group, respectively. It was more effective than Pueraria thunbergiana is known to as ethanol detoxicant. Furthermore, we tested on its ethanol metabolizing effect with the preparation containing this herb (Haeju pill) in beagle. The AUC of Haeju pill was about 1.9 times less than the control group. It was estimated that the extract of Alpinia katsumadai had feasibility as a ethanol detoxication agent.

• Journal of Nutrition and Health
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• v.34 no.5
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• pp.493-498
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• 2001

To investigate the effects of Ixeris sonchifolia Hance diets on serum and hepatic lipid levles and enzyme activities in rats administered with ethanol chronically, Sprague-Dawley male rats were AIN-76 diet(control), control diet plus ethanol, control plus Ixeris sonchifolia Hance diet, or control plus Ixeris sonchifolia Hance diet plus ethanol for 30 days. Ixeris sonchifolia Hance diets significantly decreased the serum total cholesterol, triglyceride, LDL-cholesterol, and GOT levels that were increased due to the chronic ethanol administration. In addition, Ixeris sonchifolia Hance diets significantly decreased the liver triglyceride and total lipid levels that were increased due to the ethanol administration. The present findings, combined with previous data showing differences in the effects of cabbage diets having a high or a low level of GABA on the lipid levels and the serum Y-GPT activity of rats(Cha and OH[2000] J. Korean Soc. Food Sci. Nutr. 29, 500-505) raise the possibility that GABA in plants could have a nytraceutical role in the recovery of chronic alcohol-related diseases. (Korean J Nutrition 34(5) : 493∼498, 2001)

• Nutrition Research and Practice
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• v.2 no.4
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• pp.195-199
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• 2008

Alcoholism has been associated with folate deficiency in humans and laboratory animals. Previous study showed that ethanol feeding reduces the dehydrogenase and hydrolase activity of 10-formyltetrahydrofolate dehydrogenase (FDH) in rat liver. Hepatic ethanol metabolism generates acetaldehyde and acetate. The mechanisms by which ethanol and its metabolites produce toxicity within the liver cells are unknown. We purified FDH from rat liver and investigated the effect of ethanol, acetaldehyde and acetate on the enzyme in vitro. Hepatic FDH activity was not reduced by ethanol or acetate directly. However, acetaldehyde was observed to reduce the dehydrogenase activity of FDH in a dose- and time-dependent manner with an apparent $IC_{50}$ of 4 mM, while the hydrolase activity of FDH was not affected by acetaldehyde in vitro. These results suggest that the inhibition of hepatic FDH dehydrogenase activity induced by acetadehyde may play a role in ethanol toxicity.

• International Journal of Industrial Entomology and Biomaterials
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• v.35 no.1
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• pp.22-29
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• 2017

Increased alcohol consumption is a burden on the world because it is associated with various health problems. However, the effects of silkworms on alcohol metabolism have not been studied yet. The hard-to-eat mature silkworms have become easier to ingest recently due to the development of technology, steam-lyophilising mature silkworm larvae. In this study, we investigated and compared the effects of SMSPs from three silkworm varieties, Baekokjam, Golden-silk and Yeonnokjam weaving white, golden, and light green cocoons on alcohol metabolism in vivo. Sprague-Dawley rats pretreated with three SMSPs (0.1 g/kg or 1 g/kg body weight) or normal diet (AIN-76A) for 2 weeks were subjected to intragastric administration of absolute ethanol (3 g/kg body weight, 3 h). Three SMSPs did not affect the final body weight and liver weight. All 3 SMSPs were effective to reduce the enzymes in alcohol metabolism, alcohol dehydrogenase (ADH) and aldehyde dehydrogenase (ALDH), and liver damage and enzymes involved in liver damage, aspartate aminotransferase (AST) and alanine aminotransferase (ALT). Among SMSP from 3 varieties of silkworm, preadministration of 1 g/kg Baekokjam SMSP showed the most effective suppressive effect on the activities of ADH, ALDH, AST and ALT. The Baekokjam SMSP contained higher amounts of beneficial amino acids than Golden-silk or Yeonnokjam SMSP. These results suggest that Baekokjam SMSP might be used as a new and promising candidate for improving alcohol metabolism and liver injury through promoting rapid alcohol metabolism.