Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts: Gene/Protein Disease Symptom Drug Enzyme Compound   Target Concepts: Gene/Protein Disease Symptom Drug Enzyme Compound

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Query: EC:2.6.1.2 (alanine aminotransferase)
26,722 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Biliary tract infection with anaerobic bacteria (B. fragilis or Fusobacterium mortiferum) was produced in rabbits by common duct ligation (c.d.l.) 3 days prior to intravenous bacterial inoculation. Animals were investigated 1, 4 or 7 days after inoculation. Histopathological investigations included the liver, the common duct, and the gallbladder, while liver function was evaluated by bilirubin, alkaline phosphatase (AP), and L-alanine aminotransferase (GPT) in serum. Rabbits with c.d.l. and biliary tract infection were compared to rabbits with c.d.l. in which bacterial inoculation failed to produce infection, to inoculated rabbits without c.d.l., and to uninoculated rabbits with c.d.l. Anaerobic biliary tract infection in rabbits with c.d.l. caused a significant increase in liver abscesses, a significant increased infiltration with granulocytes in the gallbladder, and a significant increase in serum levels of bilirubin, AP, and GPT, but failed to produce signs of cholangitis in the liver and intramural abscesses in the gallbladder. A material is presented of normal values for bilirubin, AP, and GPT in serum in rabbits.
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PMID:Susceptibility of the liver and biliary tract to anaerobic infection in extrahepatic biliary tract obstruction. II. Liver function and morphology of the liver and biliary tract--an experimental study in rabbits. 125 Nov 34

Ultrasound examination of the hepatobiliary system was carried out in 102 children (3-12 years) with viral hepatitis A and B on the 57-75 days of the disease. Increased liver size and swelling of the parenchyma was revealed in 100% of patients. Thickening of the gallbladder walls was similarly frequent in A and B hepatitis. In 40% deformation of the gallbladder was revealed in 40.1%. The pancreas was increased in 13.6%, indurated in 36.4% of patients. Changes in the gallbladder and cholangitis are clearly related to the level of bilirubinemia ALT activity that is one of the causes of delayed convalescence.
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PMID:[The ultrasonic diagnosis of lesions of the hepatobiliary system in protracted forms of viral hepatitis in children]. 129 24

In a 40-year-old patient unexplained recurrent attacks of epigastric colic with transient cholestatic icterus occurred over a 9-year period. When the patient was again hospitalised because of progressive pain-free icterus associated with mild pruritus (alkaline phosphatase 900 U/l, direct bilirubin 305 mumol/l, GOT 187 U/l, GPT 103 U/l) sonography revealed liver enlargement to 17 cm, extended intrahepatic bile ducts and an echodense area of about 1 cm size in the region of the bifurcation of the common hepatic duct. Fine-needle puncture did not yield clear cytological findings. Endoscopic retrograde cholangiopancreatography pointed to sclerosing cholangitis. This diagnosis was confirmed by liver punch biopsy. Since the patient did not agree to a liver transplantation, he was treated with 450 mg ursodeoxycholic acid twice daily, resulting in marked reduction of the liver parameters until severe cholangiosepsis and acute renal failure occurred about 4 months later. The septic condition and its complications could not be managed despite thorough intensive-care measures so that a liver transplant had to be performed after all. Histology of the explantate revealed a cholangiocarcinoma in the region of the bifurcation of the common hepatic duct. At first the patient's condition improved markedly but one and half months later the transplant was rejected and the patient died.
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PMID:[Primary sclerosing cholangitis]. 173 82

Serum CA 19-9 was determined in 83 control subjects, 99 patients with pancreatic cancer, 104 with chronic pancreatitis and 137 with extra-pancreatic diseases mainly of gastrointestinal origin in order to evaluate whether hepatic factors can influence circulating CA 19-9 in pancreatic cancer. Sensitivity, specificity and accuracy of this test in determining pancreatic malignancy were: 74%, 83% and 57%. We divided patients into two groups: group A (159 cases) and group B (181 cases) with and without anatomical liver damage (presence of primary or metastatic cancer, cirrhosis, hepatitis, steatofibrosis, cholangitis). Group A presented higher CA 19-9 values as compared to group B. Significant correlations were found in group B but not in group A between CA 19-9 and ALT, ALP and total bilirubin. Multiple regression analysis (CA 19-9 dependent and ALT, ALP and total bilirubin predictor variables) was significant only in group B. The standardized partial regression coefficients found to be significant were those of ALP and total bilirubin. We can conclude that CA 19-9 is an index of pancreatic cancer with satisfactory sensitivity and specificity. The presence of anatomical liver damage seems to increase the value of this index, probably releasing CA 19-9 into the bloodstream. Extra-hepatic cholestasis may also be an important factor in elevating CA 19-9 probably by reducing the hepatic catabolism of this glycoprotein.
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PMID:How does liver dysfunction influence serum CA 19-9 in pancreatic cancer? 213 20

Rats were treated with trichloroethylene via intraperitoneal (ip) injection or inhalation, or with ip alpha-naphthylisothiocyanate (ANIT). Serum samples were assayed for indices of liver injury including alanine aminotransferase (ALT), sorbitol dehydrogenase (SDH), alkaline phosphatase (AP), and bilirubin. Liver from some rats was examined for histological appearance. These data were compared to levels of individual serum bile acids (SBA) determined by high-performance liquid chromatography. Trichloroethylene and ANIT, each at their highest dose only, caused elevations in ALT, but not SDH or AP. The highest dose of ANIT also caused elevated serum bilirubin and cholangitis in the liver. SBA were also elevated in response to both trichloroethylene and ANIT, but at doses below those at which other parameters of liver function were increased. For both chemicals, taurocholic acid was the most sensitive of the bile acids assayed, being elevated at the lowest doses tested of 10 mumols/kg for trichloroethylene and 5 mumols/kg for ANIT. As the doses were raised more of the individual bile acids showed increases. On exposure to trichloroethylene via inhalation taurocholic acid was one of two SBA to show elevation. Thus, both trichloroethylene and ANIT cause elevation in SBA at doses well below those which cause an increase in standard indicators of liver dysfunction. This suggests that SBA and perhaps taurocholic acid, in particular, may provide a sensitive tool for studying hepatobiliary effects of chemicals.
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PMID:Elevation of individual serum bile acids on exposure to trichloroethylene or alpha-naphthylisothiocyanate. 221 16

We report the results of a long-term follow-up of 40/101 patients with benign biliary strictures treated with percutaneous balloon dilatation (PBD) at the Radiology Department of the University of Turin, from March 1983 to March 1990. We excluded all the patients who were not followed or treated after June 1988, being their follow-up shorter than 18 months. All patients underwent accurate clinical, biological (AST, ALT, gammaGT, alcaline phosphatase) and US controls. Mean follow-up was 33.5 months. Mean success rate was 75% in strictures of bilioenteric anastomosis, 86% in iatrogenic strictures of the common bile duct, 65% in sclerosing cholangitis, 80% in papillary strictures in which endoscopic treatment had not been possible for anatomical reasons. Our results, compared to the most important radiological and surgical series, show PBD to have lower morbidity than surgery and no mortality during the so-called peroperative period (30 days). Moreover, in case of recurrences, PBD can be repeated without further complications and does not affect eventual surgery.
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PMID:[Percutaneous transhepatic bilioplasty: long-term results]. 224 38

Lomefloxacin (NY-198), a new antimicrobial quinolone, was examined for its antimicrobial activities against clinical isolates and clinical efficacies to biliary tract infections. The following results were obtained. 1. The MICs of NY-198 against Escherichia coli (20 strains) and Klebsiella pneumoniae (20 strains) were good and similar to those of ofloxacin (OFLX) or norfloxacin (NFLX). The MICs of NY-198 against Pseudomonas aeruginosa (20 strains) were inferior by 1 dilution factor to OFLX or NFLX, and against Enterococcus faecalis (10 strains), they were similar to NFLX and slightly inferior to OFLX. 2. NY-198 was administered to 8 patients with biliary tract infections (acute cholecystitis 7 cases, chronic cholangitis 1 case). The results were good in 7 and unevaluable in 1 case because the duration of the therapy was too short. 3. As for side effects, mild urticaria was observed in 1 case and epigastralgia with nausea in another. As for abnormal laboratory test values slight elevations of GOT and GPT were recognized in 1 case. 4. In conclusion, we consider NY-198 is a useful oral drug for the treatment of biliary tract infections.
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PMID:[Studies of lomefloxacin in biliary tract infections]. 276 34

Cefodizime (CDZM, THR-221), a new cephem antibiotic, was investigated for its clinical efficacy and pharmacokinetics in children. The results obtained are summarized as follows. 1. Antimicrobial activities Antimicrobial activities of CDZM against clinically isolated organisms were determined. MICs of CDZM against 1 strain each of Streptococcus pneumoniae, Escherichia coli and Klebsiella pneumoniae were 0.05 micrograms/ml to 0.10 micrograms/ml. Especially, MIC against all 6 strains of Haemophilus influenzae was less than or equal to 0.024 micrograms/ml. This MIC value was lower than those of other antibiotics such as cefotaxime, cefotiam, cefazolin, piperacillin. 2. Pharmacokinetics CDZM was given to 1 case at a dose of 20 mg/kg by a 60-minute intravenous drip infusion. The peak value of serum concentration of CDZM was 207.80 micrograms/ml at the end of the infusion. The half-life was 2.15 hours. The mean urinary excretion rate was 68.5% in the first 4 hours, 79.2% in 6 hours and 76.5% in 8 hours after the 30-minute drip infusion. 3. Clinical efficacy CDZM was given to a total of 27 patients, 13 with pneumonia, 1 with bronchitis, 2 with acute pharyngitis, 1 with purulent tonsillitis, 5 with urinary tract infection, 1 each with retrograde cholangitis, acute enteritis, pericementitis, phlegmon and inguinal lymphadenitis. Overall clinical efficacies were excellent in 5 cases, good in 17 and the efficacy rate was 81%. Bacteriological effects were investigated in 13 cases and the eradication rate was 85%. No adverse reactions were observed in any case. As abnormal laboratory findings, elevated GOT, GPT, A1-P, LAP and gamma-GTP, were noted in 1 out of the 28 cases examined.
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PMID:[Clinical and pharmacokinetic evaluation of cefodizime in children]. 279 60

The hepatotoxicity of a new erythromycin derivative, erythromycin acistrate (EA, 2'-acetyl erythromycin stearate), was compared with that of erythromycin stearate (ES), erythromycin estolate (EE) and erythromycin-11,12 cyclic carbonate (EC) in 4-5-day, 28-day and 6-month oral toxicity studies in rats and dogs. In the 4-day rat study, EC caused fatty metamorphosis in the liver. ES caused similar, but milder changes at a dose nearly five times higher. The 5-day dog study revealed markedly increased serum alanine aminotransferase (S-ALAT), serum aspartate aminotransferase (S-ASAT), serum alkaline phosphatase (S-APHOS) and serum gamma-glutamyl transpeptidase (S-gamma-GT) values in the EC- and EE-groups, and slightly elevated S-ALAT values also in the EA- and ES-groups. Microscopy revealed cholangitis, pericholangitis and phlebitis in the portal areas in the EC-group at all doses. Epithelial hyperplasia was observed also in the bile ducts. EE caused similar but milder changes. The changes in the EA-group were small, but mildly atypical bile duct epithelium was seen in female dogs receiving 2 x 200 mg/kg of EA. The ES-group was practically without changes and very much like the EA-group. Thus the dog proved to be a more sensitive model for assessing the hepatotoxicity of erythromycin derivatives. In the 28-day studies, only EA and ES were investigated. In the rat study, slightly elevated serum enzyme levels within the normal range were measured in the high-dose regimens of both drugs. In the dog study, 300 mg/kg of EA caused slightly elevated S-ALAT in males, but the values returned to normal after a 2-week off-dose period. Only EA was studied in the 6-month study. In male rats, 400 mg/kg of EA caused slightly elevated enzyme levels and neutral fat droplets in centrilobular hepatocytes. In male dogs given 150 mg/kg of EA, S-ALAT, S-APHOS, and S-gamma-GT values were elevated after four weeks of treatment but returned to normal thereafter. No severe changes were seen in the liver histopathology. In conclusion, EC and EE were clearly hepatotoxic in dogs, and EC also in rats. EA, and to a somewhat lesser extent ES, showed signs of mild hepatotoxicity only at high doses. This evidently reversible effect was considered a common characteristic of erythromycins.
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PMID:Comparative liver toxicity of various erythromycin derivatives in animals. 233 25

A method of analysis of bilirubin clearance is suggested, which allows the calculation of a decay constant (k) and half-life (t0.5). These parameters allow ready comparison of the bilirubin clearance between patient groups. The value of k could be predicted with reasonable accuracy by a regression equation employing as determinants a score for cholangitis, pre-operative serum ALT and bilirubin, and the patient's sex. Bilirubin clearance is known to correlate strongly with antipyrine clearance, and antipyrine clearance with prognosis after biliary drainage. A similar prognostic index may be derived from simple clinical and biochemical parameters which will predict the decay constant and half-life of endogenous bilirubin.
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PMID:Serum bilirubin after surgery for obstructive jaundice. 346 68


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