BACKGROUND & OBJECTIVE Ureaplasma urealyticum has been implicated in various neonatal morbidities in preterm infants. Its association with chronic lung disease (CLD) remains controversial. The aim of this prospective study was to investigate colonization of U. urealyticum in preterm infants (with gestational age <34 wk) and to evaluate the relationship between U. urealyticum colonization and ne...

BACKGROUND Mycoplasma hominis and Ureaplasma urealyticum are implicated in a wide array of infectious diseases in adults and children. Since some species have innate or acquired resistance to certain types of antibiotics, antibiotic susceptibility testing of mycoplasma isolated from the urogenital tract assumes increasing importance. AIMS To evaluate the prevalence and antibiotic susceptibili...

A young woman developed multiple abscesses in her transplanted kidney. Amplification of the 16S rRNA gene with subsequent sequencing revealed Ureaplasma urealyticum as the infectious agent. Microbiological diagnosis and sensitivity testing led to therapy with levofloxacin, resulting in rapid recovery of the patient.

Although considerable attention has been devoted to the urea-hydrolyzing activity of Ureaplasma urealyticum, there is as yet no firmly established function for this enzyme. Present results support the idea that its activity generates a chemical gradient across the membrane which drives adenosine 5'-triphosphate synthesis through a chemiosmotic type of mechanism.

We examined the effect of 31 carbohydrates on the growth of Ureaplasma urealyticum and Mycoplasma hominis. Arbutin and its breakdown product, hydroquinone, inhibited growth of both species; the other substrates did not alter the extent of growth. Volatile and nonvolatile end products of carbohydrate metabolism were not detected by gas chromatography.

The aim of present study was to evaluate the occurrence of Chlamydia trachomatis, Mycoplasma hominis, and Ureaplasma urealyticum in non-gonococcal urethritis (NGU) and to determine the bacterial resistance to six antibiotics in order to determine the most suitable treatment strategy. A total of 50 patients were enrolled into the study. Urethral samples were taken with a dacron swab placed into ...

OBJECTIVE Our goal was to determine the in vitro susceptibility of Ureaplasma urealyticum and Mycoplasma hominis isolates to several antibiotics in Argentina. METHODS Ninety-four strains of U. urealyticum and 18 strains of M. hominis isolated from cervical and urethral specimens were studied. Broth microdilution and agar dilution tests for minocycline, tetracycline, erythromycin, ciprofloxaci...

Ureaplasma urealyticum (U. urealyticum) and Mycoplasma hominis (M. hominis) are known to cause an intrauterine infection for preterm deliveries, but it is not known whether they are actually pathogenically involved in the development of funisitis, chorioamnionitis (CAM), and chronic lung disease (CLD) in preterm infants. Our purpose was to identify U. urealyticum and M. hominis in the umbilical...

Sonication of Ureaplasma urealyticum cells grown in a dialysate growth medium effectively separated the cytoplasmic fraction from the membrane fraction, with both fractions relatively free from exogenous contaminating proteins. The urease activity was associated with the cytoplasmic fraction, and the ureaplasmal urease exhibited a specific activity higher than that of crystalline jack bean urea...