Search PubMed⌕ Search

SEARCH · Search PubMed

Results for “BACTERIOLYSIS”

Search indexed PubMed citations on genomics, clinical trials, systematic reviews and public health. Explore titles, authors and supplied subject terms, then open the PubMed record.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 1,441 records · Page 80Linked to original sources
PubMed1975

Epidemiological markers for pseudomonas aeruginosa.

A non-lysogenic strain of Pseudomonas aeruginosa maintained its phage sensitivity pattern and serogroup specificity unchanged for 10 weeks in ex-germfree, mono-contaminated rats before infection with phage. After infection with phage, phage conversions of serogroup specificity and lysotype were observed. With the same combination of bacterial and phage strains, the same serogroup was obtained in vitro and in vivo. In vitro conversion occurred also to serogroups that were not detected in vivo. Upon lyophilization, converted bacterial clones from the in vivo experiment lost their phage and simultaneously reverted to the original phage type and serogroup. These findings may have implications for the understanding of the degree of stability in epidemiological typing results for P. aeruginosa.

Agglutinins↗
PubMed1977

A simple procedure for determination of bacteriolytic activity in biological fluids.

A new procedure for spectrophotometric determination of bacteriolytic activity in biological fluids is described. The method uses Micrococcus lysodeikticus cells as substrate. By inactivation of the sample through pre-incubation in ice-water, a large number of samples can be prepared and analysed simultaneously. The necessity of performing the whole analysis in the photometer for one sample at the time is thus eliminated. By measuring the increase in transmission at 570 nm after incubation of the samples at 37 degrees C a relatively long reaction time and wide concentration range is obtained. This makes the results quite precise and reproducible. The method has been used to determine the bacteriolytic activity in serum of healthy adults. Men have significantly higher levels than women.

Adult↗
PubMed1977

Bacteriolytic activity of normal and pathological cerebrospinal fluid.

The bacteriolytic activity of 153 samples of cerebrospinal fluid (CSF) from patients with various diseases was measured by determining the ability of the CSF to cause lysis of a suspension of killed cells of Micrococcus lysodeikticus. Normal CSF did not show significant bacteriolytic activity. A high activity was found in patients with bacterial meningitis (mainly meningococcal), only to some extent correlated with the protein and cell content of the CSF. Slight elevation of protein and cell content of CSF in patients with diseases other than bacterial meningitis was not accompanied by significant bacteriolytic activity. The CSF from a patient with lymfosarcoma, with as much as 2300 cells/mm3, thus was negative. Also the CSF from patients with serous (viral) meningitis was usually negative. Measurement of bacteriolytic activity in CSF may be of diagnostic importance in cases presenting slight elevation of cell number and protein. Further studies of the significance of the bacteriolytic response in meningitis caused by different microorganisms are warranted.

Adolescent↗