PubMed Health⌕ Search

Biomedical subjects

J M Porres

Publications and source records attributed to J M Porres.

16 recordsLinked to original sources
PubMed1975

Comparison of eight kits for the diagnosis of pregnancy.

The results obtained with eight pregnancy kits on 735 urines were compared. Overall accuracies were similar and fairly high (93.4 to 95.37%), although only 78.28% of all pregnancies were simultaneously detected by all eight kits. It is suggested that the different performances of each kit could be accounted for not only by lack of product homologation, differences in kit sensitivity, and laboratorian error, but also by the presence of various hormonal components in various concentrations in the urines of pregnant women, and by the presence of different antibodies against these hormonal components in various concentrations in the antisera included in the various kits.

Chlorpromazine↗
PubMed1975

Fermentation reactions of Actinobacillus and Pasteurella in commercial media.

The applicability, reliability and accuracy of various carbohydrate media in the determination of fermentation reactions of 16 Pasteurella and Actinobacillus isolates were investigated. Laboratory prepared and commercially prepared carbohydrate media were inoculated with known test organisms and results were compared with those obtained at the Center for Disease Control (CDC). Only two of the 15 media tested reproduced more than 90 per cent of the reactions obtained at CDC. Significant differences in performance were noted depending on source and type of dehydrated media, manufacturer, type of carbohydrate and isolate studied. Considerations for media selection are summarized.

Actinobacillus↗
PubMed1975

Bioautographic characterization of antimicrobial substances after electrophoresis in agar gel.

Bioautography following electrophoresis on agar gel, a technique for the characterization of antibiotics, is described in detail and its possible uses and advantages discussed. Eleven antibiotics of the beta-lactamic group were characterized. Penicillin G and Penicillin V showed two components with anti-microbial activity. Attempts were made to identify the components by an adaptation of the technique and the results are discussed.

Ampicillin↗
PubMedDate not supplied

Isolation of Vibrio parahaemolyticus from a knee wound.

This is a case report of a contamination of an injured knee with an unusual organism, Vibrio parahaemolyticus, that is likely to occur in patients living in coastal areas but often overlooked. The infection apppears to be sensitive to a number of antibiotics and very likely cured, whether recognized or not as the proper organism.

Child↗