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Biomedical subjects

B Rengei

Publications and source records attributed to B Rengei.

At least 19 recordsLinked to original sources
PubMed1987

[A new criminologic procedure: study of L-cystine-aminopeptidase activity for the detection of seminal stains].

L-Cystine-aminopeptidase (CAP) enzyme cleaves L-cystine-di-beta-naphthylamide substrate to beta-naphthylamine. The final product of this process is a violet azostain. CAP enzyme determination was developed for criminological procedures. CAP shows almost 100 times greater activity in human semen than in other body fluids. Samples taken at different time intervals (1 week, 1-3-6 months, 1 year, and 5-10 years) were investigated; they were dried on cloth and filter paper and then stored at room temperature for various time periods. The enzyme was also shown to be specific in the comparative studies performed with other human secretions (nasal discharge, saliva, vaginal secretion, feces, urine, breast milk) and fruit juices (raspberry, strawberry, apple, pear, plum, tomato, etc.).

Aminopeptidases↗
PubMed1981

[The use of the XAD-2 and XAD-4 isolation technics in toxicologic studies].

The aim of investigations reported was to compare analytic values obtained by XAD-2 and XAD-4 technique of isolation and by the method of extraction. Fifteen different drugs added to normal blood specimens and blood obtained from intoxication cases were examined. Results indicate that the XAD column technique provides more reliable values than the method of extraction by solvents, which in addition are very expensive. Between analytic values obtained by XAD-2 and XAD-3 columns no significant difference could be revealed.

Humans↗