Normal limits of urinary excretion of eleven enzymes.

1976 ◽  
Vol 22 (10) ◽  
pp. 1567-1574 ◽  
Author(s):  
D Maruhn ◽  
I Fuchs ◽  
G Mues ◽  
K D Bock

Abstract Urinary excretion of lactate dehydrogenase, hydroxybutyrate dehydrogenase, gamma-glutamyltransferase, alkaline phosphatase, arylsulphatase A, alpha-glucosidase, beta-galactosidase, trehalase, N-acetyl-beta-glucosaminidase, beta-glucuronidase, and leucinearylamidase was studies in a carefully selected group of 100 healthy subjects, 50 women and 50 men. Enzyme activities were assayed in 3-h morning samples after gel filtration of the urine. Activities were related to time volume, and to urinary creatinine concentration. Several transforming functions had to be applied to enzyme output data to obtain an approximation to gaussian frequency distribution. Men showed a significantly higher excretion of gamma-glutamyltransferase, alpha-glucosidase, trehalase, N-acetyl-beta-glucosaminidase,beta-glucuronidase, and leucine arylamidase activity than did women if enzyme activity was related to urinary time volume. Women excreted more lactate dehydrogenase, hydroxybutyrate dehydrogenase, gamma-glutamyltransferase, alkaline phosphatase, alpha-glucosidase, trehalase, and N-acetyl-beta-glucosaminidase activity than did men, if urinary creatinine was used as the basis of reference. Reference intervals were calculated as 2.5 and 97.5 percentiles for both sexes.

1986 ◽  
Vol 32 (3) ◽  
pp. 529-532 ◽  
Author(s):  
K Jung ◽  
G Schulze ◽  
C Reinholdt

Abstract We studied how much of the lysosomal enzyme N-acetyl-beta-D-glucosaminidase (EC 3.2.1.30) and of the brush-border enzymes alanine aminopeptidase (EC 3.4.11.2), alkaline phosphatase (EC 3.1.3.1), and gamma-glutamyltransferase (EC 2.3.2.2) was excreted in urine over 8 h after a high intake of fluid (22 mL per kilogram of body weight). The hourly excretion of all four enzymes increased with the increasing urine flow rate. The excretion rate of the brush-border enzymes was more markedly influenced than that of N-acetyl-beta-D-glucosaminidase. By relating the enzyme excretion to urinary creatinine we could reduce the variability of brush-border enzyme output and could completely compensate for the effect of diuresis on the excretion of N-acetyl-beta-D-glucosaminidase.


Enzyme ◽  
1992 ◽  
Vol 46 (4-5) ◽  
pp. 234-238 ◽  
Author(s):  
Elena Matteucci ◽  
Luisa Pellegrini ◽  
Christina Uncini-Manganelli ◽  
Renzo Navalesi ◽  
Ottavio Giampietro

1986 ◽  
Vol 32 (1) ◽  
pp. 165-169
Author(s):  
G C Moses ◽  
G O Lightle ◽  
J F Tuckerman ◽  
A R Henderson

Abstract We evaluated the analytical performance of the EPOS (Eppendorf Patient Oriented System) Automated Selective Chemistry Analyzer, using the following tests for serum analytes: alanine and aspartate aminotransferases, lactate dehydrogenase, creatine kinase, gamma-glutamyltransferase, alkaline phosphatase, and glucose. Results from the EPOS correlated well with those from comparison instruments (r greater than or equal to 0.990). Precision and linearity limits were excellent for all tests; linearity of the optical and pipetting systems was satisfactory. Reagent carryover was negligible. Sample-to-sample carryover was less than 1% for all tests, but only lactate dehydrogenase was less than the manufacturer's specified 0.5%. Volumes aspirated and dispensed by the sample and reagent II pipetting systems differed significantly from preset values, especially at lower settings; the reagent I system was satisfactory at all volumes tested. Minimal daily maintenance and an external data-reduction system make the EPOS a practical alternative to other bench-top chemistry analyzers.


1993 ◽  
Vol 39 (6) ◽  
pp. 1041-1044 ◽  
Author(s):  
S L Perkins ◽  
J F Livesey ◽  
J Belcher

Abstract Reference intervals were determined for 21 clinical chemistry analytes in umbilical cord arterial and venous blood from healthy term infants. Nonparametric analysis (rank number) was used to determine the central 95% reference interval. No significant differences were observed between male and female infants. Reference intervals for glucose, urea, creatinine, urate, phosphate, calcium, albumin, total protein, cholesterol, triglycerides, alkaline phosphatase, alanine aminotransferase, aspartate aminotransferase, creatine kinase, lactate dehydrogenase, gamma-glutamyltransferase, and magnesium all were significantly different from adult values.


2015 ◽  
Vol 84 (2) ◽  
pp. 113-117 ◽  
Author(s):  
Ján Pošivák ◽  
Eva Styková ◽  
František Novotný ◽  
Igor Valocký ◽  
Jana Noskovičová ◽  
...  

Biochemical analysis in horses is an important aid for determining correct clinical diagnosis of general, infectious, and some parasitic diseases. This work studied the biochemical and mineral indices in mares of two breeds: the Norik breed Muráň Plain type and the Hucul breed. A total of 34 mares of the Norik breed Muráň Plain type (aged 15.18 ± 5.99 years) and 28 Hucul mares (aged 9.03 ± 5.50 years) were used. Blood serum was analysed using the biochemical analyser Cobas c111 (Roche, Switzerland). Significant difference (P < 0.05) was found between the Norik breed Muráň Plain type and the Hucul mares in aspartate aminotransferase, alkaline phosphatase, lactate dehydrogenase and gamma-glutamyltransferase activity; significant difference (P < 0.01) was found in urea values; and highly significant difference (P < 0.001) was found in glucose values. The mineral profile elements showed a highly significant differences (P < 0.001) between the Norik breed Muráň Plain type and the Hucul mares in phosphorus, magnesium, iron, chloride, potassium, and sodium concentrations. The results confirmed that there are significant differences between horse breeds in some biochemical indices. Therefore, it is appropriate to determine reference values for other horse breeds, as well. To our knowledge, this is the first report that compares biochemical and mineral indices between the Norik breed Muráň Plain type and the Hucul breed.


1993 ◽  
Vol 27 (4) ◽  
pp. 438-441 ◽  
Author(s):  
Robert J. Cersosimo

OBJECTIVE: To report a case of possible cisplatin-associated hepatotoxicity. CASE SUMMARY: A 69-year-old man received three cycles of cisplatin (100 mg/m2) and fluorouracil (1000 mg/m2/d for five days) for management of squamous cell carcinoma of the head and neck. Liver enzyme concentrations were within normal limits prior to each cycle of therapy but the aspartate aminotransferase, alanine aminotransferase, alkaline phosphatase, and lactate dehydrogenase concentrations increased on the second day of each cycle. The concentrations began to decline on day 3 of each course, despite continued fluorouracil administration, and returned to normal by day 10. The patient's antiemetic therapy included metoclopramide in cycle 1 and ondansetron in cycles 2 and 3, which may have contributed to the enzyme elevations. DISCUSSION: Case reports of cisplatin-associated hepatotoxicity are reviewed. An association between cisplatin administration and hepatotoxicity is proposed in this patient. CONCLUSIONS: This patient may have experienced cisplatin-induced liver damage. Metoclopramide and ondansetron may have contributed to this effect.


1984 ◽  
Vol 30 (3) ◽  
pp. 364-368 ◽  
Author(s):  
M K Schwartz ◽  
B E Statland ◽  
J Coughlin ◽  
C Eisen ◽  
M Fleisher ◽  
...  

Abstract In the RA-1000, a random-access discrete analyzer, an inert fluorocarbon fluid is used to prevent interaction and carryover. Production-model instruments were evaluated in two laboratories with respect to determination of glucose, creatinine, total protein, inorganic phosphorus, cholesterol, alkaline phosphatase, lactate dehydrogenase, creatine kinase, gamma-glutamyltransferase, and aspartate and alanine aminotransferases. Within-run, among-run, and day-to-day (for 15 days) precision was assessed, and results were correlated with those obtained by the methods routinely in use in our departments. Precision was excellent, correlation acceptable.


1987 ◽  
Vol 33 (10) ◽  
pp. 1911-1913 ◽  
Author(s):  
R H Ng ◽  
M Altaffer ◽  
M O'Neill ◽  
H Mukadam ◽  
B E Statland

Abstract We evaluated the performance of the Kodak DTSC Module for determination of alanine aminotransferase (ALT; EC 2.6.1.2), aspartate aminotransferase (2.5.1.2), alkaline phosphatase (3.1.3.1), creatine kinase (2.7.3.2), gamma-glutamyltransferase (2.3.2.2), and lactate dehydrogenase (1.1.1.27). The DTSC is a "special chemistry" accessory for the DT60 analyzer; the same multilayer film technology as that of the Ektachem 700 is used. The overall precision, assessed over a three-month period with two serum-based quality control materials, ranged from 2.2 to 8.0%. DTSC results for patients' specimens correlated well with those by the Technicon RA-1000 analyzer. The performance of the analyzer in linearity and interference studies was satisfactory for clinical use. The DTSC is simple to operate and has no technique-dependent step; it should be useful for the physician's office laboratory.


1998 ◽  
Vol 61 (8) ◽  
pp. 1057-1059 ◽  
Author(s):  
FILOMENA DOS ANJOS ◽  
ADELINA MACHADO ◽  
CRISTINA FERRO ◽  
FRANK OTTO ◽  
EITAN BOGIN

The degree and rate of inactivation of gamma-glutamyltransferase in raw cow's milk by heating at 50, 60,70, and 80°C for 1, 2, 3, 5, 10, 15, 20, 25, and 30 min were measured to evaluate the suitability of this enzyme as a marker for the pasteurization of milk. The enzymes alkaline phosphatase and lactate dehydrogenase were also measured under similar conditions for comparison. The patterns of heat inactivation of gamma-glutamyltransferase and alkaline phosphatase were similar, with only a minimal inactivation of the enzymes at 50°C. The rate of inactivation increased as a result of increasing temperatures and time. A complete inactivation of both enzymes was seen at 70°C after 10 min and at 80°C after 1 min. Lactate dehydrogenase showed a higher heat resistance with almost complete inactivation at 70°C for 30 min, and compete inactivation at 80°C for 3 min. No activities of these enzymes were found in commercially pasteurized or heat-treated milk. The levels of gamma-glutamyltransferase in raw milk were between 8 and 10% higher than those of alkaline phosphatase and lactate dehydrogenase, making it more sensitive and accurate as a testing marker. It seems that gamma-glutamyltransferase may serve as a good pasteurization marker. Furthermore, the simplicity of testing and the availability of commercial kits for testing by both wet and dry chemistry make it an attractive choice, especially because dry chemistry procedures overcome the difficulties originating from the turbidity of milk, which interferes with spectrophotometric procedures.


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