Cells of Ureaplasma urealyticum that were prepared by a ruthenium red technique demonstrated an extramembranous layer of polyanions of about 15 to 30 nm in width. Application of the concanavalin A-iron dextran strain indicated that the outer surface of this layer contained glucosyl-like residues.

Ureaplasma urealyticum is an organism considered susceptible to tetracycline. Ten tetracycline-resistant (Tcr) clinical isolates and Tcr serotype 9 were examined. All contained DNA sequences homologous to the streptococcal determinant tetM. They differed from each other on sodium dodecyl sulfate-polyacrylamide gel electrophoresis, Southern blots, and immunoblots and appeared to represent differ...

Sulfoglycolipids are ubiquitous components of the male germ cell membrane. Sulfogalactoglycerolipid (SGG) is restricted to mammalian cells and has recently been implicated in sperm/egg interactions. Mycoplasma infections have been implicated in infertility in a variety of species, including humans. Four such species-specific mycoplasmas, Ureaplasma urealyticum and Mycoplasma hominis (humans), M...

We report a case of polyarthritis with axial involvement in a young female patient treated for acute lymphoblastic leukemia. Detection in the hip fluid of Ureaplasma urealyticum by broad-range PCR followed by electrospray ionization mass spectrometry allowed the diagnosis of septic arthritis and ad integrum recovery upon adapted antibiotic therapy.

Ureaplasma urealyticum was isolated in 25.5% of the patients with urethritis and in 12.9% of the patients with prostatitis. The organism was isolated more frequently in non-gonococcal urethritis than in gonorrheal urethritis. It may thus be said that the isolation rate was higher among patients with overt signs or symptoms as compared with the common isolation rate in urine reportedly being abo...

We have cloned a 4.9-kilobase (kb) HincII fragment which contains a tetracycline resistance determinant (tetM) from the chromosome of Ureaplasma urealyticum. The 4.9-kb HincII fragment contains DNA in addition to the structural gene, is closely related to the previously characterized 5.0-kb fragment from pJI3, and contains no normal ureaplasmal DNA sequences.

The study was carried out on 1068 infertile women under initial evaluation. For Mycoplasma hominis, the highest resistance rates were registered for ciprofloxacin (72.22%), followed by macrolides and ofloxacin. For Ureaplasma urealyticum, the ciprofloxacin resistance was also high (51.72%), while the resistance rates to other tested antibiotics were significantly lower.

In a controlled trial of rosoxacin in patients with non-gonococcal urethritis (NGU), 150 mg of the antibiotic given twice daily for 10 days was compared with 300 mg triple tetracycline (Deteclo) given twice daily for the same period. Only six (19%) of 31 patients treated with rosoxacin were free of urethritis after 10 days; Chlamydia trachomatis was reisolated from 12 (92%) of 13 patients who w...