novobiocin and Bacteriuria

A modified Kloos/Schleifer-scheme proved to be useful in identifying coagulase-negative staphylococci isolated from urine. S. epidermidis (44.2%) and S. saprophyticus (21.5%) were the most frequent species. Analysis of patients confirmed both species as urinary pathogens. Using an abbreviated scheme of 6 characteristics, S. saprophyticus was mis-classified in 19.5% of cases. A Phosphatase-Novobiocin-Mannose-Inhibition Test (PNMI-Test) together with a high NaCl concentration (10%) in combination with a coagulase test seems to be an acceptable compromise for routine identification of the three most important staphylococcal urinary tract pathogens, S. aureus, S. epidermidis, and S. saprophyticus. The technical and financial expenditure can be reduced considerably, because an extended identification has to be applied only to strains which cannot be identified by the PNMI-Test.

Topics: Bacteriuria; Humans; Mannose; Novobiocin; Phosphoric Monoester Hydrolases; Staphylococcal Infections; Staphylococcus; Staphylococcus epidermidis; Urinary Tract Infections

It was found that with an increase in the medium acidity (pH 6.0 - 6.2) the antistaphylococcal effect of novobiocin significantly rose and the drug began to inhibit gram-negative bacteria, in particular, P. aeruginosa and Proteus. The method efficacy was demonstrated on a limited number of patients with urological infections caused by P. aeruginosa and increased acidity of the urine (because of cranberry juice use). Wider observations in patients with urological and some other diseases caused by gram-negative bacteria are advisable.

Topics: Bacteria; Bacteriuria; Cystitis; Dose-Response Relationship, Drug; Humans; Hydrogen-Ion Concentration; Microbial Sensitivity Tests; Novobiocin; Pyelonephritis

Topics: Bacteriuria; Culture Media; Cystitis; Female; Humans; Novobiocin; Staphylococcal Infections; Staphylococcus; Urethritis

This study concerns the diagnosis of coagulase-negative staphylococci, with special emphasis on novobiocin-resistant species, vis S. saprophyticus, S. cohnii and S. xylosus. Disc diffusion tests for novobiocin were found useful in the differential diagnosis of coagulase-negative staphylococci isolated from urine specimens, but not from pus and blood cultures. We report on the resistance of S. saprophyticus to nalidixic acid and the use of this characteristic in the diagnosis of coagulase-negative staphylococci known to be novobiocin-sensitive, but which have subsequently acquired resistance to novobiocin. The results of different tests for betalactamase production in S. saprophyticus are presented. "Clover leaf" tests suggested such a production in about half of the strains studied, while no strain produced betalactamase as indicated by tests using chromogenic cephalosporin or benzylpenicillin in capillary tube tests. -The failure of tests for nitrate reduction, glucose consumption and of cultrues of urine on MacConkey's agar in the diagnosis of urinary tract infections caused by S. saprophyticus, is documented. The concept "significant bacteriuria" in the diagnosis of S. saprophyticus infections of the urinary tract above the bladder neck is also considered.

Topics: Bacteriological Techniques; Bacteriuria; Blood; Coagulase; Diagnosis, Differential; Humans; Microbial Sensitivity Tests; Nalidixic Acid; Novobiocin; Penicillinase; Staphylococcal Infections; Staphylococcus; Suppuration

During the course of one year all (382) strains of staphylococci isolated in significant culture from urine specimens were typed by the Baird-Parker method. Staphylococcus aureus accounted for only 63 (16%) of the infections. Novobiocin-resistant micrococcal infection occurred predominantly in young women but also in children of both sexes; it was not restricted to M3. To try to detect possible sources of micrococcal infection other than faeces the normal flora of the throat, urinary tract, and vagina of young women was studied. Novobiocin-resistant micrococci were rarely found. Previous reports that micrococci are the second commonest urinary pathogens in young women in domiciliary practice were confirmed. The laboratory records of patients with these infections suggested that they respond well to treatment and that recurrences are usually due to a different organism.

Topics: Adolescent; Adult; Bacteriuria; Child; Child, Preschool; Drug Resistance, Microbial; Female; Humans; Infant; Middle Aged; Novobiocin; Pharynx; Staphylococcal Infections; Staphylococcus; Staphylococcus aureus; Vagina

Topics: Bacteriuria; Drug Resistance, Microbial; Female; Humans; Micrococcus; Novobiocin; Staphylococcus; Urinary Tract Infections; Urine

Topics: Ampicillin; Anti-Bacterial Agents; Bacteria; Bacteriuria; Carbenicillin; Chloramphenicol; Depression, Chemical; Drug Antagonism; Drug Synergism; Erythromycin; Escherichia coli; Exudates and Transudates; Humans; Kanamycin; Methacycline; Novobiocin; Oxytetracycline; Proteus; Pseudomonas aeruginosa; Rifampin; Ristocetin; Sepsis; Sputum; Staphylococcus; Surgical Wound Infection

Topics: Ammonium Chloride; Bacteriuria; Humans; Hydrogen-Ion Concentration; Novobiocin

Topics: Adult; Aged; Ampicillin; Bacteriuria; Cephaloridine; Chloramphenicol; Female; Furans; Humans; Kidney Diseases; Leucomycins; Male; Middle Aged; Novobiocin; Proteus Infections; Pseudomonas Infections; Streptomycin; Tetracycline; Urinary Tract Infections