• Title/Summary/Keyword: alcohol dehydrogenase (ADH)

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Effect of Cyclohexnae on the Lung Toxicity in Rats (Cyclohexane에 의한 흰쥐의 폐독성)

  • 전태원;이상일;윤종국
    • Biomedical Science Letters
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    • v.6 no.4
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    • pp.245-251
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    • 2000
  • In order to search the target organ of cylclohexane toxicity, the rats were intraperitoneally treated with cyclohexane (1.56 g/kg of body wt.) four times every other day. In the increasing rate of organ weight per body weight (%) in cyclohexane-treated animals, the lung was highest among the liver, spleen, small intestine, stomach, heart and kidney. And in the decreasing rate of glucose-6-phosphatase (G-6-Pase) activity in each organ, that of lung was also highest among all organs. Lung MDA content was significantly increased (p<0.05) by the cyclohexane treatment. On the other hand, microsomal aniline hydroxylase activity in lung tissue both of control and cyclohexane-treated rats was greatly low as could be scarcely measured, but that in liver possessing high activity was significantly increased (p<0.05) in cyclohexane-treated rats compared with control. Alcohol dehydrogenase activity in lung was markedly higher than that of liver and the latter was significantly (p<0.05) increased by the cyclohexane treatment. In conclusion, cyclohexane treatment to the rats showed mainly lung toxicity and it may be responsible for cyclohexanon, cyclohexane metabolite, distributed from liver.

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과일음료의 기능성

  • Hwang, Ja-Yeong
    • Proceedings of the Korean Society of Food and Cookery Science Conference
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    • 2005.10a
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    • pp.56-65
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    • 2005
  • This study was purposed to investigate the antioxidative effects, the enzyme activity of the alcohol metabolizing and melanin production of Maesil(Prune mume). The antioxidant activity of Maesil(Prunu mume) was analyzed by measuring thiobarbituric acid reactive substances(TBARS value) and electron donating ability. And we investigated the changes of alcohol dehydrogenase(ADH) and acetaldehyde dehydrogenase(ALDH) activity by measuring the maximum absorbency at 340nm in vitro and human study. The inhibitory effects of Maesil were investigated in vitro and in B-16mouse melanoma cells on melanin biosynthesis that is closely related to hyperpigmentation. The antioxidant activities for TBA values were 29.65% in ascorbicacid, 45.35% in BHT, 15.99% in extract of dehydrated maesil flesh(EDMF) and 25.00% in extract of dehydrated maesil juice(EDMJ). The electron donating abilities by DPPH were 96.69% in ascorbic acid, 77.82% in BHT, 34.25% in EDMF, and 42.99%in EDMJ. Electron donating abilities by DPPH in the presence of 0.02% EDMF and EDMJ were 53.21% and 59.19% respectively. Facilitating rates of ADH activity were 137.92, 131.58, 152.96, 218.70, 111.76, and 144.27% in maesil juice, 5, 10, and 15% GMT, and 0.5 and 1.0% aspartic acid, respectively. ALDH activity increased in the order of Maesil juice > ALDH > GMT > aspartic acid, and facilitating rate of ALDH activity in Maesil juice was the highest at 976.44%. Maesil extracts inhibited tyrosinase activity that converts dopa to dopachrome in the biosynthesis process. B-16 cells treated by Maesil extracts showed that the viability was over 80%. Maesil and maesil products in vitro and B-16 cells inhibited melanin production significantly.

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Effect of Chronic Ethanol Consumption and Herbal Extracts Administration on the Antioxidant System and Ethanol Oxidation System in Rats (만성적인 에탄올 섭취와 천연물 투여가 흰쥐의 항산화계와 에탄올 산화계에 미치는 영향)

  • Kim, Mok-Kyung;Hyun, Sun-Hee;Choung, Se-Young
    • YAKHAK HOEJI
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    • v.50 no.4
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    • pp.254-262
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    • 2006
  • This study had been done for the investigation of the effect of Vitis vinifera extract(V), Schisandra chinensis extract (S), Taraxacum officinale extract (T), Gardenia jasminoides extract (G), Angelica acutiloba extract (A) and Paeonia japonica extract (P), and their mixtures on the antioxidant and ethanol oxidation system which was induced by Lieber-DeCarli ethanol liquid diet. Male Sprague-Dawley rats were randomly divided into eight groups: ethanol diet (ED), normal diet (ND), ED+V (100 mg/kg/day), ED+S, ED+T, ED+G, ED+A and ED+P (300 mg/kg/day). We studied the effect on alcohol dehydrogenase (ADH) and acetaldehyde dehydrogenase (ALDH) after herbal extracts administration for 6 weeks in rats induced by Lieber-DeCarli ethanol liquid diet. The differences in ADH and ALDH activity of the rats treated with herbal extracts and ED group were not significant. Phase I enzyme activity was found to be significantly higher in the ED+V than the ED group. Phase II enzymes (glutathione-S-transferase, phenol sulfatransferase) activities were found to be higher in the herbal extracts than the ED group. Herbal extracts not only reduced ethanol-induced elevation of level malondialdehyde but also protected against ethanol-induced decrease of reduced glutathione, gluthione reducatse, glutathione peroxidase, catalase and superoxide dismutase activities. Therefore, they can be utilized as a health functional food or new drug candidate for fatty liver and hepatotoxicity which was induced by chronic alcohol consumption.

Methylglyoxal-Scavenging Enzyme Activities Trigger Erythroascorbate Peroxidase and Cytochrome c Peroxidase in Glutathione-Depleted Candida albicans

  • Kang, Sa-Ouk;Kwak, Min-Kyu
    • Journal of Microbiology and Biotechnology
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    • v.31 no.1
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    • pp.79-91
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    • 2021
  • γ-Glutamylcysteine synthetase (Gcs1) and glutathione reductase (Glr1) activity maintains minimal levels of cellular methylglyoxal in Candida albicans. In glutathione-depleted Δgcs1, we previously saw that NAD(H)-linked methylglyoxal oxidoreductase (Mgd1) and alcohol dehydrogenase (Adh1) are the most active methylglyoxal scavengers. With methylglyoxal accumulation, disruptants lacking MGD1 or ADH1 exhibit a poor redox state. However, there is little convincing evidence for a reciprocal relationship between methylglyoxal scavenger genes-disrupted mutants and changes in glutathione-(in)dependent redox regulation. Herein, we attempt to demonstrate a functional role for methylglyoxal scavengers, modeled on a triple disruptant (Δmgd1/Δadh1/Δgcs1), to link between antioxidative enzyme activities and their metabolites in glutathione-depleted conditions. Despite seeing elevated methylglyoxal in all of the disruptants, the result saw a decrease in pyruvate content in Δmgd1/Δadh1/Δgcs1 which was not observed in double gene-disrupted strains such as Δmgd1/Δgcs1 and Δadh1/Δgcs1. Interestingly, Δmgd1/Δadh1/Δgcs1 exhibited a significantly decrease in H2O2 and superoxide which was also unobserved in Δmgd1/Δgcs1 and Δadh1/Δgcs1. The activities of the antioxidative enzymes erythroascorbate peroxidase and cytochrome c peroxidase were noticeably higher in Δmgd1/Δadh1/Δgcs1 than in the other disruptants. Meanwhile, Glr1 activity severely diminished in Δmgd1/Δadh1/Δgcs1. Monitoring complementary gene transcripts between double gene-disrupted Δmgd1/Δgcs1 and Δadh1/Δgcs1 supported the concept of an unbalanced redox state independent of the Glr1 activity for Δmgd1/Δadh1/Δgcs1. Our data demonstrate the reciprocal use of Eapx1 and Ccp1 in the absence of both methylglyoxal scavengers; that being pivotal for viability in non-filamentous budding yeast.

Antioxidant and Alcohol Dehydrogenase Activity of Water Extracts From Abalone Containing Medicinal Plants (전복과 천연 식물류 복합물의 항산화 및 알코올대사 효소 활성)

  • Shin, Jung-Hye;Lee, Soo-Jung;Choi, Duk-Ju;Kang, Min-Jung;Sung, Nak-Ju
    • Korean journal of food and cookery science
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    • v.24 no.2
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    • pp.182-187
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    • 2008
  • This study was performed to evaluate the possible production of a functional beverage derived from abalone and with several plants (AP). Five types of AP composites were prepared having different medicinal plant compositions (AP- I : abalone, garlic, jujube, Chinese matrimony fruit, dried orange peel, licorice root, zinger, honey; AP- II: abalone, garlic, black bean, Chinese matrimony fruit, cornus fruit, licorice root, zinger, honey; AP-III : abalone, jujube, arrow root, milk vetch, dried orange peel, licorice root, zinger, honey; AP-N: abalone, black bean, arrow root, milk vetch, cornus fruit, liquorice root, zinger, honey; AP-V : abalone, garlic, Chinese matrimony fruit, milk vetch, licorice root, zinger, honey). In vitro analysis were performed to examine the antioxidant contents and alcohol dehydrogenase activities of the composites. AP- II had the highest total phenol contents ($28.55{\pm}1.56\;mg/l00\;g$), and AP- V the highest level of flavonoids ($47.61{\pm}1.58\;mg/l00\;g$). At $78.89{\pm}0.16%$, AP- V displayed the strongest electron donating ability followed by AP-II($57.99{\pm}0.21%$) and API ($37.66{\pm}0.20%$). Reducing power was also significantly higher in AP- V. The Hydroxyl radical scavenging and SOD-like activities of all composites were less than 15% and 20%, respectively. At 12.5% alcohol concentration, ADH activity ranged from $114.47{\pm}2.18{\sim}121.39{\pm}4.36%$ and ALDH activity ranged from $100.04{\pm}2.90{\sim}129.54{\pm}4.80%$; AP- I , AP- II, and AP- Vin 12.5% of alcoholic concentration. The composites of AP- I , AP- II, and AP- V, all containing garlic and Chinese matrimony fruit, were significantly stronger than AP-III and AP-N. Finally, also at 12.5% alcoholic concentration, the ALDH activity of AP- V was higher than its ADH activity.

Effects of Aqueous Medicinal Herb Extracts and Aqueous Fermented Extracts on Alcohol-Metabolizing Enzyme Activities (약용식물의 열수추출물과 적정 조성추출물 및 그 발효물이 알콜대사 효소활성에 미치는 영향)

  • Lee, Ka-Soon;Kim, Gwan-Hou;Seong, Bong-Jae;Kim, Hyun-Ho;Kim, Mi-Yeon;Kim, Mee-Ree
    • Food Science and Preservation
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    • v.16 no.2
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    • pp.259-265
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    • 2009
  • To develop an effective anti-hangover product, hot-water extracts of 25 medicinal herbs were screened for inhibition or activation of alcohol dehydrogenase(ADH) and acetaldehyde dehydrogenase(ALDH), and 12 herbs were selected for further study. Chosen medicinal herb extracts(CMHEs) were fermented by Lactobacillus delbruechii subspecies lactis for 10 days at $35^{\circ}C$ after saccharification with nuruk(malt inoculated by 5 types of microbs) for 72 hours at $35^{\circ}C$ and both CMHEs and fermented CMHEs(FCMHEs) were explored for anti-hangover effects in vitro. We found significant ADH inhibition by hot-water extracts of Pueraria thunbergiana, Hovenia dulcis Thunb, Lycium chinense, Glycyrrhiza uralensis, Acanthopanax sessiliflorus, Liriope platyphylla, and Ixeris dentata, and significant ALDH activation by extracts of Acanthopanax sessiliflorus, Lycium chinense, Ixeris dentata, and Polypori umbellati of the Polyporaceae. The ADH effects on CMHE and FCMHE were -20.22% and -62.63% of control values, and the ALDH effects 173.20% and 280.17%, respectively. In rats given 20%(v/v) alcohol(15 mL/kg), FCMHEs significantly decreased blood acetaldehyde concentrations on 3 hours after ethanol administration, in a dose-dependent manner(p<0.05). Notably, blood acetaldehyde concentrations were markedly reduced in animals given FCMHEs(400 mg/kg) compared to levels seen in rats receiving CADB(commercial alcohol detoxification beverage). Thus, anti-hangover effects were promoted by fermentation of certain medicinal herb extracts.

Development of Liquid Phase Product from Red Ginseng and Medicinal Herbs for Alcoholic Beverage (홍삼 및 기능성 소재를 이용한 주류첨가용 액상제제 개발)

  • Kim, Do-Hee;Cho, Yang-Hee;Cho, Jae-Seon;Ham, Tae-Sik;Lee, Jong-Wan;Rhee, Chul
    • Journal of Ginseng Research
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    • v.28 no.1
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    • pp.45-51
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    • 2004
  • This study was conducted to investigate the effect of crude saponin of red ginseng and aqueous extracts from several medicinal herbs on the activity of alcohol dehydrogenase(ADH) and aldehyde dehydrogenase(ALDH) in alcohol metabolism. In order to develop a liquid phase product a model product was prepared using functional plants. In case of red ginseng crude saponin, and some medicinal herbs(Puerariae radix, the flower of Puerariae lobata, the fruits of Hovenia dulcis Thunb., Morus alba L.) the relative activity of ADH was significantly increased, which was from 104~114%. The relative activity of ALDH was also significantly increased in the cases of the fruits of Hovenia duicis Thunb., Morus alba L. which was from 102∼106%. To improve of soju flavours by addition of liquid phase product, it is prepared three samples added a given content (0.28%) of chik, ssanghwa and kyungokgo flavour. The total acceptability test showed significant differences among three samples, and it is observed that the sample added ssanghwa flavour get the best grade. As the second acceptability test, the preference of ssanghwa flavoured sample, sample without flavour and a similar product in market was compared. There was no significant difference among three samples.

Evaluation of the Effects of Hangover-Releasing Agent Containing Vinegar Extract in Common Buckwheat and Tartary Buckwheat on Alcohol Metabolism and Hangover Improvement (일반메밀과 쓴메밀의 식초 추출물의 알코올 대사 및 숙취개선 효능 평가)

  • Su Jeong Kim;Hwang Bae Sohn;A Hyun Park;Jong Nam Lee;Su Hyoung Park;Jung Hwan Nam;Do Yeon Kim;Dong Chil Chang;Yul Ho Kim
    • Korean Journal of Plant Resources
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    • v.36 no.5
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    • pp.435-445
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    • 2023
  • The aim of this study was to explore the effects of vinegar extract from seed of common buckwheat (Fagopyrum esculentum Moench) and seed of tartary buckwheat (F. tataricum Gaertner) on acute ethanol-induced hangover in Sprague-Dawley rats. Vinegar extract from buckwheat is rich choline, quercetin and its glycoside, rutin known as flavonoid antioxidants. The test extract containing buckwheat was proven to alleviate hangovers through a significant reduction in the concentration of alcohol and acetaldehyde in the context of an alcohol-induced hangover model. Hepatic alcohol dehydrogenase (ADH) and acetaldehyde dehydrogenase (ALDH) activities were significantly higher in buckwheat vinegar-treated rats than in ethanol-treated rats. Moreover, tartary buckwheat vinegar upregulated antioxidant enzyme such as superoxide dismutase and Catalase activities in liver tissues. These results suggest that buckwheat vinegar extract could alleviate ethanol-induced hangover symptoms by elevating activities related to hepatic ethanol-metabolizing enzymes against ethanol induced metabolites, and in particular, tartary buckwheat should be further developed to be a novel anti-hangover material.

Anti-Inflammatory and Antidiabetic Effects of Brown Rice (Oryza sativa L.) Extracts (항염증 및 항당뇨 활성에 미치는 현미 추출물의 영향)

  • Cho, Eun-Kyung;Jung, Kyung-Im;Choi, Young-Ju
    • Journal of Life Science
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    • v.22 no.1
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    • pp.126-131
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    • 2012
  • Physiological activities of hot water (BRW) and 80% ethanol (BRE) extracts from brown rice were investigated in this study. The highest activity (94.9%) of nitrite reductase was observed for BRE at 1 mg/ml at pH 1.2, while the activity for BRW was about 75.4% under the same conditions. The inhibitory effects of BRW and BRE on xanthine oxidase activity were about 39.0 and 72.9% at 10 mg/ml, respectively. The digestibility of starch was lower for brown rice than for milled rice and the highest inhibition (93.1%) of ${\alpha}$-glucosidase activity occurred with BRE. Superoxide dismutase (SOD)-like activities of BRW and BRE were weakly increased in a dose-dependent manner and were about 56.4 and 44.9% at 10 mg/ml, respectively. The influences of BRW and BRE on alcohol metabolizing activity were determined by measuring the generation of reduced nicotinamide adenine dinucleotide (NADH) by alcohol dehydrogenase (ADH) and acetaldehyde dehydrogenase (ALDH). Increases in ADH and ALDH activities were only detected with BRE.

Inhibitory Effects of Maesaengi (Capsosiphon fulvescens) Extracts on Angiotensin Converting Enzyme and α-Glucosidase (매생이 추출물의 angiotensin converting enzyme 및 α-glucosidase 활성 저해 효과)

  • Cho, Eun-Kyung;Yoo, Seul-Ki;Choi, Young-Ju
    • Journal of Life Science
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    • v.21 no.6
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    • pp.811-818
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    • 2011
  • Physiological activities of hot water (MHW) and 80% ethanol (MEH) extracts from Maesaengi (Capsosiphon fulvescens) were investigated in this study. For the evaluation of antioxidant activities for MHW and MEH, 2,2-diphenyl-1-pic-rylhydrazyl (DPPH) radical scavenging activity and superoxide dismutase (SOD)-like activity were measured. DPPH radical scavenging activity and SOD-like activity of MHW, and MEH were increased weekly in a dose-dependent manner, and were about 10.8, 13.8, 62.4, and 27.1% at 10 mg/ml, respectively. The angiotensin converting enzyme (ACE) inhibitory activities of MHW and MEH were about 5.9% and 49.7% at 1 mg/ml, respectively. The ${\alpha}$-glucosidase inhibitory effect of MHW and MEH were about 1.4% and 67.3% at 1 mg/ml, respectively. To determine the influence of MHW and MEH on alcohol metabolizing activity, the generating activities of reduced-nicotinamide adenine dinucleotide (NADH) by alcohol dehydrogenase (ADH) and acetaldehyde dehydrogenase (ALDH) were measured. Facilitating rates of ADH activity by MHW and MEH were increased weekly in a dose-dependent manner and ALDH activities were not detected. Elastase inhibitory activities of MHW and MEH were 75.9% and 51.2% at 10 mg/ml, respectively.