Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UNIPROT:P17174 (aspartate aminotransferase)
 14,872 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Predictors of the development of hypertension were examined in a 10-year follow-up study of normotensive Japanese adults. Subjects (n = 265), aged 30-69 years at entry, normotensive and with no past history of antihypertensive treatment at entry, were studied in terms of the relationship of various physical, biochemical, dietary, and lifestyle data to the subsequent development of hypertension (defined as systolic blood pressure (SBP) more than 140 mmHg and/or diastolic blood pressure (DBP) more than 90 mmHg and/or starting antihypertensive treatment) with analysis accomplished using univariate and multivariate life table methods. Univariate analyses by the generalized Wilcoxon test showed significantly higher incidence of hypertension in those subjects with SBP 120 mmHg or more (p < 0.001), DBP 75 mmHg or more (p < 0.001), serum glutamate oxaloacetate transaminase (GOT) 20 KU or more (p < 0.001), serum glutamate pyruvate transaminase (GPT) 15 KU or more (p < 0.001), serum gamma-glutamyl transpeptidase (gamma-GTP) 10 IU/l or more (p < 0.001), age 50 or older (p = 0.002), body mass index 22 kg/m2 or more (p = 0.012), and serum creatinine less than 1.2 mg/dl (p = 0.020) than in the other subjects. Multivariate analysis by the Cox proportional hazards model confirmed that relatively higher SBP (p < 0.001), lower serum creatinine (p < 0.001), higher gamma-GTP (p = 0.002), and higher age (p = 0.041) were independent and significant predictors of future hypertension.
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PMID:[Predictors of the development of hypertension: ten-year follow-up study in a community]. 139 30

An improved understanding of medical problems of alcoholic patients can be gained from commonly encountered laboratory test results. Liver function tests--such as measures of alkaline phosphatase, gamma-glutamyl transpeptidase, aspartate aminotransferase, alanine aminotransferase, and lactate dehydrogenase--may provide evidence of altered hepatic activity of different types, such as obstruction and hepatocellular injury. Other test results may indicate impaired hepatic function, such as measurements of albumin, bilirubin, prothrombin time, and blood urea nitrogen. Alterations are also common in electrolytes, blood glucose, magnesium, phosphate, uric acid, and acid-base balance. Disturbances in hematologic function are not infrequent in alcoholic patients, including anemias from many causes, altered granulocyte responses, and thrombocytopenia.
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PMID:Clinical significance in alcoholic patients of commonly encountered laboratory test results. 159 68

The hepatic abnormalities that developed after the splenectomy in 10 subjects with idiopathic myelofibrosis were analyzed. In all patients in whom a liver biopsy was performed during the splenectomy, extramedullary hematopoiesis was demonstrated, consisting of dysmorphic megakaryocytes primarily localized in the sinusoids, often accompanied by erythroid precursors. Following splenectomy, a significant increase in both the liver size and serum levels of alkaline phosphatase, bilirubin or gamma-glutamyl transpeptidase was found within 6 months, whereas no such increase was observed in the serum aspartate transaminase and alanine transaminase concentrations. In addition, 2 patients developed acute liver failure leading to death at 3 and 4 weeks from splenectomy, respectively. In contrast with these findings, no hepatic alterations were observed in 10 chronic myeloid leukemia patients who were also submitted to splenectomy.
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PMID:Liver dysfunction following splenectomy in idiopathic myelofibrosis: a study of 10 patients. 167 28

Dose- and time-related effects of Cd (II) (0.5 or 1.0 mg/kg, Cd as CdCl2.H2O, subcutaneously, daily for 48 h, 1, 3, or 6 wk) were investigated in rats. A dose-related increase in the activity of plasma alkaline phosphatase (ALP), lactate dehydrogenase (LDH), aspartate aminotransferase (GOT), and alanine aminotransferase (GPT) was evident only at 6 wk, whereas an early rise in ALP and LDH was seen at 3 wk in 1.0 mg Cd group only. The hepatic and renal metallothionein (MT) induction displayed a dose- as well as time-related increase with Cd accumulation. A significant increase in hepatic Zn and renal Cu, no change in hepatic Cu, and a slight increase in renal Zn was observed. Urinary ALP and leucine aminopeptidase (LAP) showed an initial increase at 48 h, thereafter returned to near normal. A second phase of enzymuria (ALP, LAP, GOT, GPT, gamma-glutamyl transpeptidase), proteinuria, and aminoaciduria occurred at 6 wk in a dose-related manner. The urinary excretion of specific renal enzymes appeared closely related to the MT induction and organ Cd levels.
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PMID:Biochemical response to cadmium. Dose-time effect. 171 72

The time course of changes in serum proteins and other blood constituents after eccentric exercise of the forearm flexors by six nonweight-trained female subjects (age, 19.7 +/- 1.9 years) was investigated. Eccentric muscle actions are those in which the muscle lengthens as it exerts force, as when a person lowers a weight. Serum levels of creatine kinase, lactate dehydrogenase, aspartate aminotransferase, alanine aminotransferase, alkaline phosphatase, gamma-glutamyl transpeptidase, myoglobin, as well as urea nitrogen, uric acid, creatinine, calcium, and phosphorus were examined before and for 6 days after exercise. Creatine kinase increased dramatically (peak value ranged from 6740 to 24,200 U/L) and aspartate aminotransferase, lactate dehydrogenase, alanine aminotransferase, and myoglobin followed the same time course as creatine kinase, but their peak values were lower. These proteins did not increase significantly until 48 hours after exercise and reached peak values 3 to 5 days after exercise. Alkaline phosphatase, gamma-glutamyl transpeptidase, uric acid, urea nitrogen, creatinine, calcium, and phosphorus showed no change. There is either a delay in muscle protein release by damaged muscle fibers, or the proteins are unable to leave the interstitial area for the 24 to 48 hour period after exercise. Because of the long delay, care should be taken when blood protein levels are interpreted in persons who have exercised strenuously (even if only for a short period of intense effort) several days before any diagnostic tests are performed.
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PMID:Time course of serum protein changes after strenuous exercise of the forearm flexors. 174 Jun 32

The risk of non-A, non-B hepatitis transmission by an intravenous immunoglobulin (IVIG) preparation was assessed in a prospective multicenter trial in 68 patients with primary immunodeficiency disorders (40 children or adolescents and 28 adults). During the 4-week prestudy evaluation period the clinical examinations and liver function tests including alanine aminotransferase, aspartate aminotransferase, gamma-glutamyl transpeptidase, alkaline phosphatase, and bilirubin were normal in all patients. The treatment consisted of three infusions of 200 mg IVIG (pH 4; pepsin procedure) per kilogram body weight at 2-week intervals. During the observation period of 24 weeks following the first infusion of the study IVIG, the patients were monitored at regular time intervals. No clinical and laboratory signs of hepatitis or liver dysfunction were noticed. All patients completed the study. In 5 patients, one isolated alanine aminotransferase value and in another patient one gamma-glutamyl transpeptidase value were moderately elevated, but always below 2.5 times the upper limit of the reference range. Similar isolated and transient elevations were observed for aspartate aminotransferase and alkaline phosphatase. It was concluded that the IVIG preparation did not transmit non-A, non-B hepatitis or other viral liver diseases.
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PMID:Safety of intravenous immunoglobulin preparations: a prospective multicenter study to exclude the risk of non-A, non-B hepatitis. 177 40

The suppressive effects of crocetin (a natural carotenoid) on the hepatotoxic lesions induced by aflatoxin B1 (AFB1) were investigated in male Wistar rats. Rats were divided into five groups: groups I and II served as normal and solvent control respectively. Group III was given AFB1 (25 micrograms/day/rat) alone; group IV was given crocetin (0.1 mg/day/rat) alone; and group V received both AFB1 and crocetin. Rats received AFB1 and crocetin for 9 and 10 weeks respectively, and were maintained on basal diet for 35 weeks. At the end of the experiment (week 45), the incidence of liver lesions in rats of group V was significantly reduced by approximately 40% compared with group III. There were no liver lesions in rats of groups I, II and IV. A significant protective effect of crocetin on AFB1 hepatotoxicity was shown, as manifested by reduced effects on the activities of serum aspartate aminotransferase, alanine aminotransferase, alkaline phosphatase and gamma-glutamyl transpeptidase (P less than 0.01-0.001). From our previous results and present data, we suggest that the suppression of crocetin on AFB1 hepatotoxicity in the rats might be due to the defense mechanisms of hepatic tissues that elevated the GSH S-transferase activity and decreased the formation of hepatic AFB1-DNA adducts.
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PMID:Suppression of aflatoxin B1-induced hepatotoxic lesions by crocetin (a natural carotenoid). 193 61

Hydrophobic bile acids have been shown to be hepatotoxic, whereas treatment with ursodeoxycholic acid, a hydrophilic bile acid, has improved liver function indices in patients with chronic liver disease. Taurine administration has also been suggested to be useful for chronic hepatitis, taurine-conjugated bile acids being more hydrophilic than glycine-conjugated bile acids. To determine if taurine and ursodeoxycholic acid are beneficial and if their effects are additive, a double-blind, randomized trial was designed comparing the effects of ursodeoxycholic acid, taurine, and a combination of the two on indices of liver injury in 24 patients with chronic hepatitis. They were assigned at random to two of the four following treatments: ursodeoxycholic acid (600 mg/day), taurine (1.5 g/day), ursodeoxycholic acid plus taurine (600 mg + 1.5 g/day) or placebo, given in two successive cycles of 2 mo each, according to a balanced incomplete-block design. Ursodeoxycholic acid became the predominant biliary bile acid when administered alone or in combination with taurine, and taurine conjugate levels increased during taurine administration. Ursodeoxycholic acid reduced aspartate aminotransferase (35%), alanine aminotransferase (33%), and gamma-glutamyl transpeptidase (41%), whereas taurine alone did not. The addition of taurine to ursodeoxycholic acid produced only minor changes in the effects of ursodeoxycholic acid alone. Results were confirmed by the administration of ursodeoxycholic acid, in a successive open phase of the study, to the entire patient population, which was large enough for different subsets of patients to be compared. Serum bile acids were measured at entry and during the open phase: primary bile acids did not change, whereas ursodeoxycholic acid levels increased from trace amounts to very high levels, especially in patients with more severe histological disease. It is concluded that ursodeoxycholic acid, but not taurine, improves enzymatic indices of liver injury in chronic hepatitis.
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PMID:Effects of ursodeoxycholic acid and taurine on serum liver enzymes and bile acids in chronic hepatitis. 196 71

Wistar male rats underwent a midline ventral abdominal incision under pentobarbital anaesthesia and were divided into two groups: the experimental rats were injected with 0.04 ml.kg-1 bodyweight Ethibloc (Ethicon-FRG) into a tributary of the superior mesenteric vein, close to the hepatic portal vein and the control, saline. The animals were sacrificed by decapitation on the 1st and on the 30th day after the treatment. The serum aspartate aminotransferase (AST) and alanine aminotransferase (ALT) activities are significantly increased at the 24 hr following the i.v. injection in the experimental rats. The 30th LDH5 level is decreased 19% in the experimental group from the ones in the control group. The serum activities of lactate dehydrogenase (LDH), hydroxybutyrate dehydrogenase (HBDH), gamma-glutamyl transpeptidase (GGTP) and serum cholinesterase do not differ substantially in the experimental group from these in the control group in the different periods of assessment.
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PMID:Changes in serum enzyme activities in splanchnic ischemia shock. 208 7

A 71-yr-old male presented with a 2-month history of fever, malaise, and weight loss. Physical exam revealed chorioretinitis. Laboratory studies were notable for elevated levels of alkaline phosphatase, gamma-glutamyl transpeptidase, aspartate transaminase, and alanine transaminase. Immunoglobulin G antibody to Toxoplasma gondii was positive to a dilution of 1:4096, whereas serologic studies for hepatitis A virus, hepatitis B virus, cytomegalovirus, Epstein-Barr virus, human immunodeficiency virus, Brucella, and Tularemia were negative. A percutaneous biopsy of the liver revealed hepatic granulomas. Culture of the biopsy specimen was negative for growth of mycobacteria or fungi. Spontaneous improvement in clinical and laboratory parameters occurred over a 4-month period.
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PMID:Toxoplasmic chorioretinitis and hepatic granulomas. 222 Jul 41


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