• Parasites, Hosts and Diseases
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• 제21권1호
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• pp.41-48
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• 1983

The activity and distribution of aspartate aminotransferase (EC 2.6. 1. 1) and alanine aminotransferase (EC 2.6.1.2) in adult Fascicle hepatica have been studied. Fasciola hepatica was fractionated by differential centrifugation into nuclear, mitochondrial and cytosolic fractions. The activity of GOT and GPT was measured by the method of Reitman and Frankel. Isozyme patterns of those enzyme were also examined by DEAE-cellulose column chromatography. The results obtained were as follows; 1. The activity of aspartate and alanine aminotransferase was about 0.55 unit and 0.92 unit per 1g of Fascicle hepatica, respectively. 2. The activity of those enzymes was relatively low compared with those in mammalian tissues. 3. The distribution of aspartate aminotransferase in the subcellular organelles showed that 71% of the activity was in cytosolic, 24% in mitochondrial and 5% was in nuclear fraction. 4. About 22% of the total alanine aminotransferase activity was found in the mitochondrial fratstion, about 66% in the cytosolic fraction. 5. Aspartate aminotransferase from cytosolic fraction was separated into two types of isozymes, whereas alanine aminotransferase from cytosolic fraction gave only one active peak on DEAE-cellulose column chromatography.

• 대한임상검사과학회지
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• 제53권3호
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• pp.241-248
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• 2021

본 연구는 고혈압이 있는 대한민국 성인에서 아스파르트산 아미노전이효소(aspartate aminotransferase, AST)/알라닌 아미노전이효소(alanine aminotransferase, ALT) 비율과 맥압(pulse pressure, PP) 사이의 관계를 평가하기 위해 수행되었다. 제6차 국민건강영양조사(KNHANES VI-3, 2015)에서 성인 1,515명의 데이터를 분석했다. 본 연구에서는 몇 가지 중요한 결과가 있다. 첫째, AST (odds ratio [OR], 1.018; 95% confidence interval [CI], 1.002~1.033), ALT (OR, 0.982; 95% CI, 0.969~0.996) 및 AST/ALT ratio (OR, 1.367; 95% CI, 1.027~1.819)는 고PP 결정하는 독립적인 요인이었다. 둘째, 관련변수(연령, 성별, 흡연, 음주, 규칙적인 운동, TC, TG, HDL-C, FBG, BMI, WC)를 조정한 후의 결과에서 AST/ALT ratio의 1 사분위에 대한 고PP의 OR을 기준으로, AST/ALT ratio의 2 사분위(OR, 1.188; 95% CI, 0.817~1.727) 및 AST/ALT ratio의 3 사분위(OR, 1.169; 95% CI, 0.800~1.710)는 유의하지 않았지만, AST/ALT ratio의 4 사분위(OR, 1.632, 95% CI, 1.113~2.393)에서 유의하게 높았다. 결론적으로, 고혈압이 있는 대한민국 성인에서 고PP은 AST/ALT ratio 및 AST와 양의 상관관계가 있었지만 ALT와 음의 상관계가 있었다.

• Advances in Traditional Medicine
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• 제3권1호
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• pp.18-20
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• 2003

The purpose of this study was to examine the effect of supplementary highly purified chitosan (HPC) on blood alcohol concentration in healthy human. The human study was performed with two sections. Each section of the study was conducted by two-phase cross-over design with a week wash-out period. All volunteers took HPC in one phase, and took a placebo in the next phase. Blood alcohol concentrations were different between in those taking HPC and in those taking the placebo in the human. And the concentration of serum aspartate aminotransferase (AST, GOT) and alanine aminotransferase (ALT, GPT), the indicator of liver cell damage, was lowered in those taking HPC, compared to those taking the placebo. In conclusion, taking HPC prior to drinking alcohol can somewhat reduce alcohol concentration in human blood and liver cell damage.

• 한국임상약학회지
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• 제3권1호
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• pp.45-53
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• 1993

Biphenyl Dimethyl dicarboxylate(DDB) has been regarded as a safe, effective drug for decreasing serum aminotransferase levels from elevated serum aminotransferase levels, which cause acute or chronic hepatitis and chronic liver diseases. This study was designed to low dose(22.5mg/day) & short-term therapy effectiveness for 4 weeks of DDB in 30 chronic hepatitis patients with elevated serum aminotransferases. The following results were observed. 1. Serum alanine aminotransferase(ALT) levels significantly decresed from 173. $97\pm130.62(U/L)$ of pretreatment level to $32.23\pm19.22(U/L)$ after treatment for 4 weeks(p<0.00l) and normalized patients by $73\%$ 2. Serum aspartate (AST) aminotransferase levels significantly decreased from $94.90\pm49.17(U/L)$ of pretreatment level to $45.30\pm23.25(U/L)4 after treatment(p0<0.01). 3. However, no significant effects in the serum AST & ALT changes by which cause hepatitis and hepatitis duration (p>0.05). 4. No significant adverse effects were observed except for mild epigastric discomfort in one patient during DDB treatment It is suggested that DDB small dosage administration can result effectively decreasing serum aminotransferase levels from chronic hepatitis patients with elevated serum aminotransferase levels.

• 한국응용곤충학회:학술대회논문집
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• 한국응용곤충학회 2005년도 춘계 학술발표회
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• pp.186-186
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• 2005

• Journal of Nutrition and Health
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• 제42권8호
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• pp.732-739
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• 2009

Metabolic syndrome has been strongly associated with elevated alanine aminotransferase (ALT), a surrogate of nonalcoholic fatty liver disease. We investigated the relationship between metabolic syndrome and elevated ALT in the general Korean population. The study sample was comprised of 4,781 Korean adults who had participated in the 2005 Korean National Health and Nutrition Examination Survey. Metabolic syndrome was defined by National Cholesterol Education Program for Adult Treatment Panel III. Elevated ALT was defined as an enzyme activity > 40 IU/L for men, and > 31 IU/L for women. ALT was measured by enzymatic methods. Among participants, 425 (8.9%) subjects displayed elevated ALT. The odds ratios (ORs) for elevated ALT increased in subjects with obesity or one of components of metabolic syndrome such as abdominal obesity, high blood pressure, high fasting glucose, high triglyceride, and low HDL cholesterol after adjusting for age and sex. The unadjusted OR for elevated ALT increased according to the number of components of metabolic syndrome (OR = 1.5, 95% CI: 0.96-2.32 for 1 component; OR = 3.0, 95% CI: 1.98-4.61 for 2 components; OR = 6.3, 95% CI: 4.29-9.35 for ${\geq}3$ components; p for trend < 0.0001). This trend did not differ after adjustments for putative risk factors including age, sex, BMI, smoking status, and alcohol intake. Metabolic syndrome is implicated as a strong risk factor of elevated ALT in Korean adults.

• Environmental Analysis Health and Toxicology
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• 제13권3_4호
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• pp.63-70
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• 1998

In order to elucidate the prevalence of anti-HEV, anti-HCV and HBsAg in ALT (Alanine Aminotransferase)-elevated patient group and healthy person control group, we examined anti-HEV, anti-HCV and HBsAg in 92 persons, respectively. The prevalence of anti-HEV in ALT-elevated patient group (4.3%) was not significantly higher than that (2.2%) of healthy person control group(P>0.05). While in healthy person control group the prevalence of anti-HEV in female (2.4%) was higher than that (2.0%) in male, and in ALT-elevated group male (4.8%) was higher than female (3.3%), there were no significances. The positive rate of anti-HEV was not significantly increased with age between healthy person control and ALT-elevated patient group. The odds ratio's of HEV, HCV and HBV with ALT-elevated patient group were 2.05 (95% CI: 0.31-16.54), 8.67 (95% CI: 1.06-188.63) and 7.23 (95% CI: 2.47-22.71), respectively, but had no significance. It was turned out that HCV and HBV were significantly correlated with ALT-elevated patient group, but HEV had no significance with it in this paper.

• BMB Reports
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• 제39권5호
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• pp.511-515
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• 2006

Alanine aminotransferase (AAT) is mainly synthesized in the liver, and its level in mammalian serum is elevated after acute phase induction. Here we demonstrated that sheep anti-human AAT antibody cross-reacted with amphioxus humoral fluids as well as human serum; and the concentration of AAT in the humoral fluids in amphioxus increased after the acute challenge with lipopolysaccharide, while the level of total proteins remains unchanged. These suggest the presence of the same acute phase response pattern in amphioxus, as observed in some mammalian species. Immunohistochemically, AAT was localized in the hepatic diverticulum, ovary and testis. It appears that the hepatic diverticulum in amphioxus is functionally homologous to the vertebrate liver in respect of AAT synthesis, supporting the hypothesis that the vertebrate liver evolved from the hepatic diverticulum of an amphioxus-like ancestor during early chordate evolution.

• International Journal of Industrial Entomology and Biomaterials
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• 제15권1호
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• pp.59-68
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• 2007

Changes in protein metabolism were studied in hemolymph and fat body on days 1, 3, 5 and 7 of the fifth-instar silkworm, Bombyx mori, exposed to lethal, sublethal doses and prevailing levels of fluoride in groundwater in Karnataka and Andhra Pradesh States of India. The total protein content indicated a depletion followed by a concomitant increase in accumulation of free amino acids. Concurrently, the activity of protease in both of the tissues was also increased. A steady enhancement in the activities of alanine aminotransferase and aspartate aminotransferase paralleled the elevation of glutamate dehydrogenase activity in the tissues studied. It is presumed, on the basis of these results, that the fluoride toxicity causes major changes in protein metabolism of the silkworms.

• 한국식품위생안전성학회지
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• 제14권2호
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• pp.172-178
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• 1999

Previous studies have shown that methanol extract and its butanol fraction of Carthamus tinctorius L. Semen have the hepatoprotective effect on the CCl4-induced hepatotoxicity. The hepatoprotective effect of subfractions has been evaluated by analyzing blood and hepatocyte biochemical analyses and biotransformation enzyme analyses. Treatment of BS-5, subfraction has significantly decreased the activities of alanine aminotransferase and aspartate aminotransferase. In addition, the levels of cholesterol and triglyceride in liver have been decreased as compared with that of CCl4 treated rats. The hepatoprotective effect of BS-5, subfraction on the CCl4-induced hepatotoxicity would be mediated of the attenuation of the level of cytochrome P450 and the enhancement of the activity of glutathion S-transferase.