• 제목/요약/키워드: Alanine aminotransferase(ALT)

검색결과 665건 처리시간 0.03초

알코올 의존 환자의 적혈구막 지질과산화 정도와 적혈구 평균 용적 및 간 효소 지표와의 관련성 (The Relationship between Lipid Peroxidation of Red Blood Cell Membrane, and Mean Corpuscular Volume and Liver Enzyme Markers in Alcohol Dependence Patients)

  • 정성윤;최인근;서국희;강희정
    • 생물정신의학
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    • 제5권2호
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    • pp.235-242
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    • 1998
  • Objectives : Alcohol-induced oxidative stress has been known to injure various tissues or organs. This stress is related with free radicals which are produced as the result of long-term alcohol consumption. Malonyldialdehyde(MDA) is produced by the interaction of free radicals and cell membrane lipids, and indicates the degree of lipid peroxidation indirectly. The purpose of this study was to investigate the relationship between red blood cell(RBC) membrane lipid peroxidation by free radicals, and associated hepatic injuries and hematologic changes. Methods : Thirty-three subjects diagnosed as alcohol dependence according to DSM-IV diagnostic criteria were evaluated within 72 hours after discontinuing alcohol drinking. Clinical characteristics were evaluated by CAGE questionnaire and Korean Michigan Alcoholism Screening Test(MAST). RBC membrane MDA level was measured as the marker of RBC membrane lipid peroxidation. Aspartate aminotransferase(AST), alanine aminotransferase(ALT) and gamma-glutamyltransferase(GGT) were used as the biochemical markers of liver damage due to alcohol ingestion. The alcohol-induced hematologic change was assessed by mean corpuscular volume(MCV). Results : The results were as follows. Clinical characteristics were not different between two groups having normal and abnormal levels of AST, ALT, GGT or MCV. The levels of MDA were not correlated with the clinical characteristics and serum levels of AST, ALT and GGT. However, there was a significant correlation between the levels of MDA and the value of MCV(p=0.017). Conclusions : These findings suggest that oxidative stress in alcohol dependence may not be reflected in liver enzyme markers such as AST, ALT and GGT, but may be reflected in MCV.

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벤조피렌으로 유발된 흰쥐 간독성에 대한 번데기동충하초 배양액의 회복효과 (Effect of Culture Broth of Cordyceps militaris on Recovery of Mice Hepatic Damage Caused by Benzo($\alpha$)pyrene-Treatment)

  • 조성준;이태희;김진만;한영환
    • 미생물학회지
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    • 제45권4호
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    • pp.416-418
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    • 2009
  • 번데기동충하초의 간독성 회복 효과를 HaM/ICR 계열의 흰쥐를 이용하여 검정하였다. 벤조피렌 복강주사시, 혈중의 aspartate aminotransferase (AST) 및 alanine aminotransferase (ALT)의 효소활성과 간조직의 lipid peroxide (LPO) 농도는 대조군과 비교시 급격히 증가하여 간독성을 유발하였다. 그러나, 벤조피렌 대조군과 비교시, 번데기 동충하초 배양액의 경구 투여시 AST와 ALT의 효소활성 및 LPO 농도는 감소하였으며, 벤조피렌에 유도된 간 조직의 glutathione 농도 및 glutathione S-transferase 효소활성은 증가하여 간독성을 회복하였다. 실험결과는 번데기 동충하초 균사체 배양액이 벤조피렌 유발 간독성에 대해 회복 효과가 있음을 보여준다.

Protein Electrophoresis Fraction in Serum of the Rural Elderly Patient

  • Kim Chong-Ho;Park Chung-Oh;Kang Young-Tae;Park Seung-Taeck
    • 대한의생명과학회지
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    • 제12권3호
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    • pp.197-200
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    • 2006
  • We analyzed total protein (TP), albumin (AL), aspartic aminotransferase (AST), alanine aminotransferase (ALT), urea nitrogen (UN), creatinine (CRE) and serum protein electrophoretic fractions in sera of rural elderly patients to evaluate the health status in rural elderly patients. We observed that the frequencies of patients showed lower level of total protein, albumin, and both total protein and albumin than them of reference range were 20.3%, 22.8% and 19.0%, respectively. The rates of patients showed higher level of AST, ALT, both of AST and ALT, UN, creatinine and both of UN and creatinine than them of reference range were 33.8%, 40.0%, 30.0%, 17.7%, 15.2% and 7.9%, respectively. Comparison of protein fractions of each patient to reference range showed that 77.2% of patients showed normal in all of patterns. Few of patients showed abnormal pattern in albumin (13.6%), ${\alpha}1-globulin (0.0%),\;{\alpha}_2-g10bulin(1.1%),\;{\beta}-globulin(1.9%)\;and\;{\gamma}-globulin(6.2%)$. These data suggest that many of rural elderly patients may suffer from heart, liver and kidney diseases. The serum protein fractions are not typical criterion to evaluate the disease, but production of proteins in rural elderly patients may be affected by liver disease and kidney disease.

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흰쥐에 Toluene과 Alcohol의 병행투여가 간 손상에 미치는 영향 (Effect of Acute Pretreatment of Ethanol on the Liver Damage in Toluene Treated Rats)

  • 전재현;임영숙;윤종국
    • 동아시아식생활학회지
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    • 제6권3호
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    • pp.289-294
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    • 1996
  • To evaluate an effect of acute ethanol pretreatment on the liver injury in toluene-treated rats, toluene(50% in olive oil) was intraperitoneally given four times at 0.3ml/100g body weight at interval of one day to the ethanol-pretreated rats(0.3ml of 50%/100g body weight). The increasing rate of liver weitht per body weight(%), serum levels of alanine aminotransferase (ALT) activity, liver lipid peroxide content was higher in toluene treated rats pretreated with ehtanol than those treated with toluene alone. Concomitantly the hepatic glucose-6-phosphatase activity was increased whereas glutathione content was decreased by ehtanol pretreatment before toluene administration in rats. In case of direct administration of acetaldhyde or benzaldehyde to the rats, the liver weitht per body weight(%) and serum levels of ALT activity were almost higher than the control group. There results indicate that the toluene treated rats showed the reversible injury of liver and intensified. however, by the ethanol treatment.

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단순 비만아에서 간효소치와 신체 계측 및 생화학 측정치와의 관련성 (Relationships with Alanine Aminotransferase Activity, and Anthropometric and Biochemical Measures in Obese Children)

  • 윤경빈;김재영
    • Pediatric Gastroenterology, Hepatology & Nutrition
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    • 제12권1호
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    • pp.30-38
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    • 2009
  • 목 적: 비만에서 발생하는 비알코올성 지방간질환은 대부분 무증상이어서 혈청 검사에서 간효소치 상승이 있거나 간초음파검사에서 지방간이 발견되는 경우에 이 질환에 대한 의학적 관심이 증가한다. 본 연구에서는 비만아와 과체중아에서 간세포손상을 반영하는 ALT 상승과 신체 계측치 및 생화학적 검사치들과의 관련성을 알아보고자 하였다. 방 법: 2006년 1월부터 2008년 6월까지 충남대병원 소아청소년과에서 비만 또는 과체중으로 진단받은 142예를 대상으로 신체 계측, 생화학 검사를, 간초음파검사는 일부 환자에서 시행하였다. ALT치를 기준으로 정상 군(I군)과 상승 군(II군)으로 분류하여 신체 계측치, 생화학 검사치, 간초음파 소견을 비교하였다. 바이러스간염, 약물 유발 간염, 대사이상 간염, 내분비 장애, 유전 질환이 있는 경우는 연구 대상에서 제외하였다. 결 과: 단순 비만아에서 간전이효소치의 상승은 전체의 54.2%에서 있었으며, 남녀별로는 남아 63.0%, 여아 26.5%에서 있었다. I군과 II군의 나이는 각각 11.4${\pm}$3.3, 11.7${\pm}$3.2세로 차이가 없었다. 성별 분포는 I군은 남아 40예, 여아 25예로 총 65예, II군은 남아 68예, 여아 9예로 총 77예로 양군 모두 남아가 통계적으로 유의하게 많았으며(p=0.003, 0.001) 남녀 비는 I군 1.6:1, II군 7.6:1로 II군에서 남아의 발생빈도가 4.8배 더 높았다. 신체 계측치는 허리둘레/키 비, 엉덩이둘레/키 비가 II군에서 통계적으로 유의하게 높았으며(p=0.001, 0.046), 키, 체중, 체질량지수, 허리둘레, 엉덩이둘레, 허리둘레/엉덩이둘레 비, 비만 정도는 양 군 간에 유의한 차이가 없었다. 생화학 검사치와 인슐린 저항성에서는 AST, ${\gamma}$-GT, 총콜레스테롤 수치가 II군에서 통계적으로 유의하게 높았고, AST/ALT비는 I군 1.10${\pm}$0.41, II군 0.55${\pm}$0.17로 II군에서 유의하게 낮았다(p<0.001, <0.001, <0.001). 중성지방, 고밀도지질단백 콜레스테롤, 저밀도지질단백 콜레스테롤 수치, 공복 시 인슐린 농도, 혈당, 인슐린 저항성 지표는 두 군 간에 통계적으로 유의한 차이가 없었다. 단변량 상관관계분석에서는 체질량지수, 엉덩이둘레/키 비, 허리둘레/키 비, ${\gamma}$-GT, 중성지방이 양의 상관관계를 보였다. 간초음파검사는 I군 11예, II군 32예에서 시행되었는데, 양 군 모두 경도의 지방간 소견이 가장 많았으며, 양 군 간에 지방간 빈도에는 통계적으로 유의한 차이가 없었다. 결 론: 비만아에서 허리둘레/키 비, AST, AST/ALT비, ${\gamma}$-GT, 총 콜레스테롤 농도가 ALT치가 정상인 군 보다 상승된 군에서 통계적으로 유의한 차이를 보였으며, 허리둘레/키 비와 ${\gamma}$-GT가 ALT 상승과 통계적으로 유의한 양의 상관관계를 보여 쉽게 측정할 수 있는 신체 계측치인 허리둘레/키 비를 ALT치가 상승된 비만아의 관리에 참고 자료로 이용해 볼 수 있겠다. 그러나 이에 대해서는 향후 더 많은 연구가 필요하다.

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살균제 carbendazim이 랫드 간 해독체계에 미치는 영향 (The Effect of Fungicide Carbendazim on Hepatic detoxication systems of rat)

  • 이제봉;신진섭;정미혜;박연기;강규영
    • 농약과학회지
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    • 제9권4호
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    • pp.338-346
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    • 2005
  • Carbendazim의 랫드 간 해독체계에 대한 영향을 검색하기 위하여 간장독성의 지표 효소인 혈장 ALT(alanine aminotransferase) 및 AST(aspartate aminotransferase) 활성, 간에 대한 독성, 해독 및 대사에 대한 영향을 구명하기 위하여 간 GSH(glutathione), GST(glutathione-S-transferase), cytochrome P450 및 cytochrome P450 reductase 활성을 375, 750, 1,500 mg/kg 약량에서 측정한 결과 혈장 ALT 및 AST 활성이 120분 후에 약간의 증가가 있었으나 특이한 독성증상은 관찰되지 않았다. GSH는 고농도와 중농도 120분에서 20%의 함량증가가 있었고, GST는 120분까지 $36{\sim}50%$ 정도의 활성저해가 있었으나 240분에는 활성이 회복되었다. Cytochrome P450함량은 60분까지 $25{\sim}50%$까지 함량이 저하되었으나 120분에 70%이상 회복되었고, 240분 저농도에서는 거의 회복되었으며, cytochrome P450 reductase도 120분까지 $25{\sim}50%$ 활성저해가 있었으나, 240분에는 무처리 군의 활성과 유사하게 회복되어 대사관련 효소에 대한 손상은 크지 않을 것으로 판단되었다. 이상의 결과에서 benzimidazole 계 살균제인 carbendazim은 생체내 해독 및 대사관련 체계에 영향이 적은 농약으로 급성적인 중독은 일으키지 않을 것으로 판단되었다.

사염화탄소에 의한 간손상에 미치는 고본의 보호작용 (Protective Effects of Angelica tenuissima Nakai on Hepatotoxicity by Carbon Tetrachloride in Rats)

  • 정춘식;정기화
    • Biomolecules & Therapeutics
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    • 제10권4호
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    • pp.211-217
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    • 2002
  • Hepatoprotective activity of methanol extract of Angelica tenuissima Nakai on the $CCl_4$-induced hepatotoxicity was investigated. To elucidate the hepatoprotective activity and free radical scavenging effect, we examined alanine aminotransferase (ALT), aspartate aminotransferase (AST), albumin, total protein, cholesterol, malondialdehyde (MDA) levels in serum and activities of superoxide dismutase (SOD), catalase (CAT) in hepatic tissue as compared with those of carbon tetrachloride-induced rats. The action mechanism also has been estimated by quantative analysis of cytochrome P450 (CYP), NADPH-CYP reductase for phase I metabolism and glutathion (GSH), glutathion S-transferase (GST) level for phase II metabolsim. Treatment of Angelica tenuissima methanol extract significantly lowered the levels of alanine aminotransferase and aspartate aminotransferase. In addition, the levels of cholesterol, triglyceride, MDA, CAT were decreased, and SOD was activated. This result indicates that the hepatoprotective effect of Angelica tenuissima methanol extract on the CCl4-induced hepatotoxicity would be originated from reduction of the NADPH-CYP reductase, GSH and the enhancement of the activities of GST, CYP.

알로에의 과산화지질 억제효과에 관한 연구 (Studies on the Antilipidperoxidative Effect of Aloe)

  • 하배진
    • 한국식품위생안전성학회지
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    • 제11권2호
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    • pp.159-164
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    • 1996
  • The antilipidperoxidative and hepatopreventive effects of Aloe water extract (30 mg, 50 mg, 100 mg) were investigated at the levels of liver-total homogenates and the sera of SDrats intoxicated with CCl4 (0.5 cc/100g) and 50% ethanol. We measured MDA (Malondialdehyde) in the liver homogenate, AST (L-Aspartate-2-oxoglutarate aminotransferase) and ALT(L-Alanine-2-oxo-glutraate aminotransferase) in the serum. The analysis of the measurement indicated that Aloe water extract reduced MDA, ALT and AST significantly and their reduction was in relation to dose dependence. In rat liver homogenate intoxicated with ethanol and CCl4, Aloe treatment group markedly inhibited lipidperoxidation by 30%∼70%. In rat serum intoxicated with ethanol and CCl4, Aloe treatment group inhibited AST, ALT by 40%∼90%. In these data Aloe may be used to inhibit or prevent the hapatic toxicity with results from the environmental and alcohlic factors through the further study of its exact antihepatotoxic mechanism.

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부자를 포함한 한약처방이 간효소치에 미치는 영향 -임상 6예를 중심으로 (The Pilot Study of the Hepatotoxicity of Aconiti Radix Lateralis Preparata Contained Herbal Medicine in 6 Cases)

  • 구본수;김태경;한진안;문상관;김영석
    • 대한한의학회지
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    • 제23권1호
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    • pp.177-182
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    • 2002
  • It is considered that herbal medicine may also have hepatotoxicity and Aconiti Radix Lateralis Preparata is thought to be the most poisonous. We investigated the changes of aspartate aminotransferase (AST), alanine aminotransferase (ALT) and ${\gamma}-glutamyltranspeptidase{\;}({\gamma}-GT$)$ in 6 cases administrated herbal medicine containing Aconiti Radix Lateralis Preparata and tried to evaluate its influence on liver enzymes. Before administration, the mean values of AST and ALT were $30.5{\pm}12.4${\;}U/L{\;}and{\;}30.7{\pm}22.5{\;}U/L$. After administration, those of AST, ALT and ${\gamma}-GT{\;}were{\;}25.7{\pm}8.7 {\;}U/L,{\;}28{\pm}14.8{\;}U/L{\;}and{\;}34.3{\pm}19.4{\;}U/L$ respectively. Therefore, it is indirectly assured that herbal medicine containing Aconiti Radix Lateralis Preparata didn't influence liver enzymes such as AST, ALT, ${\gamma}-GT$.

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Validation of Serum Aminotransferases Levels to Define Severe Dengue Fever in Children

  • Srivastava, Geetika;Chhavi, Nanda;Goel, Amit
    • Pediatric Gastroenterology, Hepatology & Nutrition
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    • 제21권4호
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    • pp.289-296
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    • 2018
  • Purpose: We aimed to study the pattern of liver-injury in children with dengue fever (DF) and validate serum aminotransferase ${\geq}1,000IU/L$ as a marker of severe DF. Methods: Children admitted with DF were included. DF was defined by presence of clinical criteria and positive serological or antigen tests in absence of other etiology. DF severity was graded as dengue without or with warning signs and severe dengue. Liver-injury was defined as alanine aminotransferase (ALT) more than twice the upper limit of normal (boys, 30 IU/L; girls, 21 IU/L). Results: Of 372 children with DF, 144 (38.7%) had liver-injury. Risk of liver-injury and aminotransferase levels increased with DF severity (p<0.001). Recommended ALT and aspartate aminotransferase (AST) cut-off at ${\geq}1,000IU/L$ had sensitivity 4.8% (5/105), specificity 99.3% (265/267) for detection of severe DF. In children with ALT and AST <1,000 IU/L (n=365), the area under receiver operating curves for prediction for severe DF, were 0.651 (95% confidence interval [CI], 0.588-0.714; p<0.001) for ALT and 0.647 (95% CI, 0.582-0.712; p<0.001) for AST. Serum ALT at 376 IU/L and AST at 635 IU/L had sensitivity and specificity comparable to ${\geq}1,000IU/L$ for defining severe DF. Conclusion: Liver-injury is common in DF. The ALT and AST levels increase with DF severity. ALT and AST levels of ${\geq}1,000IU/L$ could be lowered to 376 IU/L and 635 IU/L respectively for defining severe DF.