• BMB Reports
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• 제37권3호
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• pp.370-375
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• 2004

There has been increasing interest in the value of using soybean to delay or reduce the tumor incidence. This study was undertaken to investigate the possible protective effects of soybean against hepatocarcinogenesis induced by DL-ethionine. Accordingly, we measured biochemical changes occurring in serum and liver of rats treated with DL-ethionine in the presence or absence of soybean. Male albino rats were fed a control diet containing the hepatocarcinogen, DL-ethionine, or the control diet plus soybean 30%, or the control diet plus soybean plus DL-ethionine 0.25% for three months and then returned to a control diet for up to nine months. Rats fed a control diet plus DL-ethionine showed a gradual decrease in liver DNA, RNA, total protein, and liver weight and enzyme activites of liver transaminases (GOT and GPT) and alkaline phosphatase over the 7-month study period. This was followed by a large increase in the liver parameters at the end of the $9^{th}$ month, except for 5'-nucleotidase and glucose-6-phosphatase that showed a large decrease. On the other hand, a gradual increase in the serum enzyme activities of GOT, GPT, 5-nucleotidase, alkaline phosphatase, and in the albumin/globulin (A/G) ratio is observed in the group of rats fed a control diet plus DL-ethionine compared to the control group over 8 months, and this was followed by a large increase in all serum parameters studied at nine-months. The administration of 30% soybean to the rat diet in addition to DL-ethionine maintained all parameters studied at near control values until the end of the $9^{th}$ month. This study suggests that soybean has a protective effect against the hepatocarcinogenesis induced by DL-ethionine.

• Applied Microscopy
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• 제3권1호
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• pp.17-22
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• 1973

흰쥐를 실험 동물로 하여 기본식에 0.5% 가 되도록 DL- ethionine 을 첨가하여 1 주 내지 4 주간 사육하고 회장 흡수상피세포의 소포체를 중심으로 하여 이와 관련있는 소기관들의 변화를 관찰한 성적을 요약하면 다음과 같다. rER 에 있어서는 attached ribosome 의 탈락과 그 내강의 확장을 free ribosome 에 있어서는 poly- some 의 감소와 monosome 의 증 가를, Golgi complex 에 있어서는 확장을, 그리고 sER에 있어서도 그 내강의 확장 등이 주적인 변화였다. 이 변화들은 ethionine 투여후 2 주째부터 나타나기 시작하여 점차로 성하여지는 경향이 있다. 이상의 연구 성적으로 보아 ethionine 을 투여하면 회장 흡수상피세포에 있어서도 간장이나 취장에서와 같이 단백 합성에 관하여는 소기관들에 주로 변화가 일어난다고 믿어진다.

• 한국식품영양과학회지
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• 제43권1호
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• pp.40-46
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• 2014

본 연구에서는 두 종류의 가시오가피 발효물 추출물(FM-5111, FM-5131)에 대한 지방간 예방 및 개선 효능을 검토하였다. 그 결과 FM-5111, FM-5131 모두 ethionine과 ethanol 지방간 모델에서 간 손상의 지표인 AST의 수치를 감소시키며, 간 내 총 지질량과 중성지방 함유량을 감소시키는 효능을 보이고 있다. 특히 간 내 총 지질량과 중성지방 함유량의 감소 정도로 보았을 때, ethanol 지방간 모델에서 더욱 두드러진 효능을 보이고 있다. 따라서 FM-5111과 FM-5131은 비알코올성 지방간 형성을 예방하고 알코올에 의해 형성된 지방간을 개선하는 효능을 가지고 있으며, 비알코올성 지방간과 알코올성 지방간 모델에서 간 손상 등을 억제하는 것으로 판단된다.

• 한국환경보건학회지
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• 제16권2호
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• pp.121-126
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• 1990

Liver and serum xanthine oxidase(XOD) activity were determined in rats treated with DL-ethionine. Concomitantly, the enzyme activity was compared with that of rats treated with CCl$_{4}$, actinomycin D and those fed a protein depleted diet. The activity of XOD in liver was inhibited by injection of ethionine to the rats. But, there were no differences in activity of serum XOD between control group and ethionine-treated rats. And the pattern of changes in enzyme activity of serum and liver in ethionine-treated rats, was similar with actinomycin D treated rats or those fed a protein depleted diet. On the other hand, the activity of XOD was rather elevated both in serum and liver by injection of CCl$_{4}$ to rats.

• 한국미생물·생명공학회지
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• 제32권4호
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• pp.356-361
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• 2004

The ethionine resisconferring gene (ERCI) was constitutively expressed under the control of the alcohol dehydrogenase gene promoter (ADClp) and introduced into the chromosomes of an industrial polyploid strain of Saccharocerevisiae by using the 8-sequences of the Tyl retrotransposon as the recombination site. 8-Integrative cassette devoid of bacterial DNA sequences containing the ampicillin resistance gene was constructed that had the aureobasidin A resistance gene (AURl-C) as the selection marker and ERCl gene. The ERCl gene was also employed as the selection marker in the 8-integrative cassette lacking the A URl-C gene. Industrial Saccerevisiae transformed with these integrative cassettes exhibited strong resistance to DL-ethioncompared with nontransformants.

• 한국식품영양학회지
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• 제29권3호
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• pp.307-312
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• 2016

This study was performed to investigate the effects of Acer tegmentosum Maxim. extract (ATE) on non-alcoholic fatty liver in Sprague Dawley (SD) rats. During oral administration of ATE, non-alcoholic fatty liver was induced by treatment with DL-ethionine. The lipid, total cholesterol (T-CHO) and malondialdehyde (MDA) in the liver tissue of ATE-fed rats showed lower levels, as compared to ATE-unfed rats. In ATE-fed rats, the serum levels of alanine aminotransferase (ALT), aspartate aminotransferase (AST) and ${\gamma}$-glutamyl transferase (GGT) were lower than the case of ATE-unfed rats. Oil red staining of the liver showed that the lipid deposits were decreased by feeding ATE. These results strongly indicated that ATE has positive effects of protection against non-alcoholic fatty liver formation.

• 한국임상수의학회지
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• 제8권2호
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• pp.127-142
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• 1991

This study was carried out to investigate fatty liver in Korean black goats. Adult female goats were divided into 3 test groups(A, B and C). Group A and B of goats each received 3 test consecutive daily doses of DL-ethionine at 75mg/kg and 150mg/kg body weight, respectively. Group C of goats was given 3 consecutive doses of the compound every 48 hours at 150mg/kg body weight. The clinical symptoms, hematological values, serum chemical values and histopathological study of the liver were investigated in the test animals. The results obtained are as follows ; 1. Fatty liver were observed in every test animal. 2. Some clinical symptoms( anorexia, depression) were appeared from 1st day to 7th day after administration of the compound in every test animal. In addition to these symptoms, diarrhea and salivation were generally observed in test animals which were given the compound at 150mg/kg body weight. The degree of these symptoms was dose dependent. 3. There was no significant variations in total WBC counts and fibrinogen values in the blood of test goats. The PCV values were significantly increased on 5th day of dosing in group A and B of goats. 4. The total lipid value was not changed but the concentration of NEFA was significantly increased on 3rd day of dosing with the compound and returned to normal value after 10 days hereafter. The value of triglycerides was significantly increased on 1st day and returned to normal value on 3rd day of dosing. The value of cholesterol was significantly decreased on 3rd day and returned to normal value on 10th day after treatment. 5. Total protein level was decreased on 10th day of dosing in the groups of B and C, and billirubin level was significantly increased on 7th day of dosing in every test group and returned to normal level after 13th day of administration. 6. The activity of GGT in serum was not changed while the activities of SDH and AST were significantly increased in every test goat and those values were returned to normal after 10~13th day of trestment. 7 The 35K-protein fraction in serum was not detected by SDS-polyacrylamide gel electrophoresis, but this protein fraction was detected by the same method after treating the 21st and 22nd fraction which were obtained by column chromatography with Sephadex G-100. 8. The affected liver was congested and swollen on 3rd day, and yellowish brown in color and mottled appearance on 7th day of treatment. Histopathologically, fat droplets were common in the hepatocytes, this change was intensive on 7th day after treatment in group B and C. Hepatic cell necrosis was observed in some livers but this pathological change was disappeared and returned to normal after 13 days of treatment.