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:2.6.1.1 (aspartate aminotransferase)
21,665 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

One hundred and eighty seven patients (155 males, 32 females) with histologically proven and previously untreated head and neck cancer were entered in the study. A total of 222 cycles of therapy were analyzed (cisplatin 100 mg m-2 on day 1 and 5-day continuous intravenous infusion of 5-FU 550-1069 mg m-2 day-1, mean 875.5 mg m-2 day-1). Significant interpatient variability for various 5-FU pharmacokinetic parameters was observed including an almost ten-fold range in 5-FU clearance (5-FU Cl, ml min-1 m-2 = 791-7769, mean 2820.7). Log 5-FU Cl was not modified by 5-FU dose (r = -0.1034, P = 0.124, n = 222). Poor linear correlations between log 5-FU Cl and hepatic function tests were observed (respective r and P values for 222 cycles, log AST:0.0526, 0.4365; Log ALT: -0.1167, 0.0842; Log A1K. Phos.:0.154, 0.0214; Log GGT: 0.0652, 0.3436; Log LDH: -0.0984, 0.1563; Log bilirubin: 0.1278, 0.0601). The log 5-FU Cl was also poorly correlated with the serum concentration of various nutritional proteins (respective r and P values for 222 cycles, Albumin: 0.0110, 0.8714; prealbumin: -0.1067, 0.1129; transferrin: 0.0439, 0.5226). Laboratory data including indices of hepatic function and nutritional status cannot account for the interpatient variability in 5-FU disposition.
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PMID:No effect of dose, hepatic function, or nutritional status on 5-FU clearance following continuous (5-day), 5-FU infusion. 849 17

1. Dehydration of camels for 10 days resulted in reduction of liver functions, expressed in longer half life and reduced clearance of bromosulfophthalein (BSP), elevated AST (ALT levels were below the limit of detection of the method) and reduced serum albumin concentrations. 2. Binding of BSP to camel serum proteins by gel permeation chromatography and by equilibrium dialysis showed very strong binding. 3. Binding parameters of various drugs to camels serum by equilibrium dialysis showed close similarities both qualitatively and quantitatively to those of humans. 4. Albumin seems to be the major serum binding protein of BSP.
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PMID:Liver function and protein binding in camels. 257 54

The chemical measurements on our Technicon SMAC of lipemic sera before and after clearing lipemia by ultracentrifugation showed that uric acid, creatinine, carbon dioxide, calcium, phosphorus, potassium, and alkaline phosphatase were not affected significantly by lipemia, whereas sodium, urea, glucose, chloride and total protein showed small but significant increases with averages of less than 1.9 percent. Albumin showed a significant decrease of 1.2 percent. In contrast, the results for the enzymes, alanine aminotransferase (ALT), aspartate aminotransferase (AST) and lactate dehydrogenase (LDH) showed striking differences between pre- and post-centrifuged sera in a number of specimens. With lactate dehydrogenase, thirty-two of fifty specimens registered an increase in activity while with the aminotransferases, thirty-five and forty-one out of fifty specimens showed a decrease in aspartate aminotransferase and alanine aminotransferase activities, respectively. Although much of the lipemic interference can be explained by the volume displacement of serum by lipids or by interference by lipemia with colorimetry, the anomalous effects observed with the enzymes indicate the possibility of other, as yet, undetermined factor(s).
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PMID:The effect of hyperlipidemia on Technicon SMAC measurements. 712 23

Effects of storage at room temperature (23-25 degrees C) and refrigeration (4-5 degrees C) on various biochemical constituents of camel serum were investigated. Albumin, globulin, calcium, phosphorus, cholesterol, aspartate aminotransferase (AST), alkaline phosphatase (AP) and gamma glutamyltransferase (GGT) did not change over 9 days when stored at 4-5 degree C. At 4-5 degree C, creatinine, iron and glucose in camel sera remained stable for 6 days; total protein for 7 days; and blood urea nitrogen for 8 days. Decreased activities in creatine kinase (CK), lactate dehydrogenase (LDH) and alanine aminotransferase (ALT) were apparent after 1, 6, and 7 days, respectively. At room temperature, total protein, albumin, globulin, calcium and phosphorus were stable throughout the 9 days. Changes in glucose and iron occurred after 3 days. Stability at room temperature for LDH was 1 day; AST, 3 days; GGT and ALT, 6 days; and AP, 8 days. CK activity had already declined by 4 hours and by 9 days, only 34% activity remained.
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PMID:Effect of storage on some constituents of camel serum. 852 13

Reference values are usually based on blood samples from healthy men or non-pregnant women. Blood samples from pregnant women may be compared with these reference values. Correct references for pregnancy can be extremely important for clinical decisions such as ablatio placentae, appendicitis, premature rupture of membranes and preeclampsia. Previous studies of normal variations during third-trimester pregnancy are incomplete. Blood samples during pregnancy weeks 33, 36 and 39 as well as 1-3 h postpartum were collected from pregnant women with dietary iron supplement and at least one previous pregancy without a history of hypertension or preeclampsia. When the sampled values were compared with the present reference values from men and non-pregnant women, the following differences were found during normal pregnancy: Haemoglobin and ferritin were reduced, CRP was slightly elevated, WBC (white blood cell count) and HNL (human neutrophilic lipocalin) were elevated during pregnancy and significantly increased postpartum. Albumin was reduced. ALT and AST were slightly elevated and GGT was unchanged during pregnancy. ALP, D-dimer and fibrinogen were elevated. Uric acid increased during the third trimester and thrombocyte count decreased. Separate reference values for pregnant women are essential for correct diagnostic decisions during third-trimester pregnancy. Elevated levels of D-dimer do not necessarily indicate ablatio placentae. A diagnosis of progressive preeclampsia cannot be based on increasing uric acid levels and reduced platelet count in a stable clinical condition. HNL signals activation of neutrophilic granulocytes and can thereby offer a helpful tool for diagnosing infection during pregnancy and postpartum.
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PMID:New reference values for routine blood samples and human neutrophilic lipocalin during third-trimester pregnancy. 1176 17

The prevalence of alterations of liver function tests in patients treated with a wide range of antypsychotics is unknown. The aim of this study was to analyze the effects of antipsychotics on liver function tests in a population of schizophrenic outpatients. Concentrations of AST, ALT, GGT, alkaline phosphatase, albumin, and bilirubin were determined in 54 patients fitting DSM-IV criteria of schizophrenia, and the same number of sex- and age-matched healthy subjects. Assessments included the Clinical Global Impression (CGI) and the Positive and Negative Syndrome Scale (PANSS) in addition to treatment related variables. Transaminases concentrations were slightly elevated in study patients compared to healthy controls, but without statistical significance. Alkaline phosphatase showed higher values in schizophrenic patients. Albumin and bilirubin were lower in study patients. Liver function tests abnormalities were found in about 10% of schizophrenic patients treated with antipsychotics. Treatment with depot phenotiazines induces alteration in these tests more frequently than treatment with other antipsychotics. PANSS negative subscale scores directly correlated with alkaline phosphatase and inversely correlated with albumin. A substantial number of patients in treatment with antipsychotic drugs present alterations of liver function tests. Both pharmacological and clinical factors could be related with these alterations.
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PMID:Alterations of liver function test in patients treated with antipsychotics. 1461 43

Hepatitis C virus (HCV) is a major cause of morbidity worldwide. The aim of this study is to evaluate hematological manifestations occurring in patients suffering from chronic HCV infection. Positive HCV-RNA cases (109) were subjected to the following C.B.C., P.T., P.T.T., B.T., C.T., detection of F.D.Ps., measurement of plasma AAT then B.M. aspiration and examination for 20 cases of them. Patients were classified into 3 groups according to the histopathological staging and grading of liver biopsy. Comparison between groups according to histopathological grading and staging for hematological and chemical parameters revealed significant statistical difference in platelets count, S. Albumin, ALT and AST levels. Comparison between groups according to histopathological grading and staging for coagulation profile, AAT level and FDPs revealed significant statistical difference regarding all parameters. Bone marrow aspiration and examination revealed mild hypocellularity with increased number of lymphocytes and relevance of plasmacytoid-lymphocytes. From this study we can conclude that patients with chronic HCV infection are in need for good observation and follow up before taking therapy because they have some hematological abnormalities which need more concern in order to decrease their progressive effect before starting therapy for HCV per se. They should be always screened and given liver and marrow supportive supplements.
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PMID:Haematologial manifestations in HCV infected patients at Sharkia Governerate, Egypt. 1512 50

The aim of this study was to determine the effect of opium on biochemical parameters in addicts with non-insulin-dependent diabetes mellitus (NIDDM). Twenty-three males and 26 females between 35 and 65 years of age, with NIDDM, addicted to opium, were selected as the case group. Twenty-three males and 26 females with NIDDM and no opium addiction served as controls. Fasting glucose, glycated haemoglobin (HbA1c), total cholesterol, high density lipoproteins-cholesterol (HDL-c), triglycerides (TGs), sodium (Na(+)), potassium (K(+)), calcium (Ca(2+)), iron (Fe(2+)), total iron binding capacity (TIBC), serum total protein, albumin, alanine aminotransferase (ALT), aspartate aminotransferase (AST), uric acid and urea were measured in the serum of the two groups. Serum protein electrophoresis was also carried out. Compared to the control group, in addicted males with NIDDM, HbA1c, K(+) and Fe(2+) were higher, and serum total protein, ALT and HDL-c were lower. No significant difference was observed between other factors. Albumin was lower in addicts, but no significant difference was observed between the albumin/globulin ratios. In addicted females with NIDDM, serum total protein, TIBC, ALT and AST were lower compared to non-addicts. Cholesterol tends to be lower in diabetic addicted males, HbA1c in addicted females and uric acid in addicted males was higher compared to non-addicted diabetics. Their differences, however, were not significant. According to our results, smoking opium increases serum glucose and decreases HDL-c, and thus adds to metabolic disorders in NIDDM patients. It also increases potassium and Fe(2) in males and decreases TIBC in females, and could therefore potentially interfere with water and iron metabolism.
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PMID:Effects of opium addiction on some serum factors in addicts with non-insulin-dependent diabetes mellitus. 1520 39

Stingrays are prominent marine animals; however, there are few published reference values for their blood chemistry and hematology. Twenty-eight southern stingrays (Dasyatis americana) were caught using the bottom trawl nets of fishery-independent boats operated by the South Carolina Department of Natural Resources during June and July 2002 from Winyah Bay, South Carolina, to St. Augustine, Florida. Median values of blood and plasma obtained from live animals promptly after capture are as follows: packed cell volume = 0.22 L/L (22%), total solids (TS) = 56.5 g/L (5.65 g/dl), total protein (TP) = 26 g/L (2.6 g/dl), sodium = 315 mmol/L, potassium = 4.95 mmol/L, chloride = 342 mmol/L, calcium = 4.12 mmol/L (16.5 mg/dl), phosphorus = 1.5 mmol/L (4.7 mg/dl), urea nitrogen = 444 mmol/L (1,243 mg/dl), glucose = 1.69 mmol/L (30 mg/dl), aspartate aminotransferase = 14.5 U/L, creatine phosphokinase = 80.5 U/L, osmolality = 1065 mOsm/kg, and lactate = 3.1 mmol/L. Bicarbonate was less than the low end of the instrument range (5 mmol/L) in all but three samples. Anion gap was negative in all samples. Albumin was less than the low end of the instrument range (1 g/dl) in all except one sample. Osmolality was significantly higher in the rays caught in the southern region. TS and TP values were linearly related to each other, and the equation for the fitted line is TS = (11.61 x TP) + 25.4 (in g/L) [or TS = (1.161 x TP) + 2.54 (in g/dl)]. The reference ranges reported in this study can be used to aid in the management of aquarium stingrays and to create a baseline for health monitoring of the wild Dasyatis spp.
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PMID:Plasma biochemistry reference values of wild-caught southern stingrays (Dasyatis americana). 1573 87

Changes in albumin and antioxidant enzyme mRNA expression in infant rat liver following administration of total parenteral nutrition (TPN) with/without soybean oil emulsion were studied. Infant rats were divided into three groups: group 1=oral diet, group 2=TPN without fat, and group 3=TPN with 20% of calories from soybean oil emulsion. The period of TPN administration was 4 d. Serum aspartate aminotransferase and alanine aminotransferase levels were higher in group 2 than in the other groups, with similar levels seen in the other groups. Albumin, Cu, Zn-superoxide dismutase, and glutaredoxin 1 mRNA expression levels were lower in group 2 than in the other groups, with similar levels seen in the other groups. Catalase mRNA expression was higher in group 1 than in the other groups, with the lowest level seen in group 2. Soybean oil emulsion should be included in TPN regimens to prevent down-regulation of albumin and antioxidant enzyme mRNA expression.
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PMID:Soybean oil in total parenteral nutrition maintains albumin and antioxidant enzyme mRNA levels. 1599 11


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