Ureaplasma

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Ureaplasma

 [u-re´ah-plaz″mah]
a genus of gram-negative, nonmotile, pleomorphic bacteria that lack a cell wall and form small granular colonies. U. urealy´ticum is a common inhabitant of the genitourinary tract and is associated with sexually transmitted nongonococcal urethritis.

Ureaplasma

(yū-rē'ă-plaz'mă),
A genus of microaerophilic to anaerobic, nonmotile bacteria (family Mycoplasmataceae) with no cell walls. Gram-negative, they are predominantly coccoidal to coccobacillary elements, approximately 0.3 mcm in diameter, which frequently grow in short filaments; colonies are generally small, 20-30 mcm in diameter, and may have no zones of surface growth. Ureaplasma hydrolyze urea with production of ammonia, and are found in the human genitourinary tract, occasionally in the pharynx and rectum. In males, they are associated with nongonococcal urethritis and prostatitis; in females, with genitourinary tract infections and reproductive failure; in neonates, they may cause pneumonia or meningitis. The type species is Ureaplasma urealyticum.
Synonym(s): T-mycoplasma

Ureaplasma

/Urea·plas·ma/ (-plaz″mah) a genus of nonmotile pleomorphic, gram-negative bacteria (family Mycoplasmataceae) lacking a cell wall and hydrolyzing urea; U. urealyt´icum is associated with nonspecific urethritis in males and genital tract infections in females.

Ureaplasma

a genus in the family Mycoplasmataceae. There are two species, U. urealyticum, found in humans, and U. diversum, which is associated with genital disease in cattle. See ureaplasmosis. Called also t-strain mycoplasma.
References in periodicals archive ?
Mycoplasmas and ureaplasmas are part of the class Mollicutes.
For many years, Mollicutes species recognized as human pathogens of the genitourinary tract (TGU) were restricted to Mycoplasma hominis and Ureaplasma urealyticum, together with Mycoplasma pneumoniae in the respiratory tract.
Mycoplasmas and Ureaplasmas species have been associated with genitourinary tract infections including infertility, a complex medical problem whose causes may be diverse.
The use of first generation cephalosporin such as cefazoline provides activity against Ureaplasmas and Mycoplasma but may cause and increase in the resistant organisms like anaerobes.
Duffy, "In vitro susceptibilities to and bactericidal activities of garenoxacin (BMS-284756) and other antimicrobial agents against human mycoplasmas and ureaplasmas," Antimicrobial Agents and Chemotherapy, vol.
LIVINGSTON JUNIOR & GAUER (1983) consideraram a possibilidade de os ureaplasmas estarem associados as perdas reprodutivas devido a falhas na concepcao, na implantacao do embriao no utero ou interferencia no desenvolvimento fetal.
Tanto Ureaplasmas como Mycoplasmas se adhieren al espermatozoide por medio de receptores especificos, que en el caso del Ureaplasma diversum es un sulfoglicolipido, y pueden inducir fragmentacion del DNA ya sea por decondensacion, denaturacion, o por rompimiento de bandas de DNA, lo cual no muestra un dano espermatico inmediato, pero si problemas en el desarrollo y la implantacion embrionaria (25).
Quantitative detection and phylogeny-based identification of mycoplasmas and ureaplasmas from human immunodeficiency virus type 1-positive patients.
At the time of initial evaluation, chest radiographs and blood samples from peripheral veins were obtained for every NICU patient for routine culture of aerobic and anaerobic bacteria, ureaplasmas, and Mycoplasma hominis.
Chlamydia, Brucella, Toxoplasmosis, Streptococci, Mycoplasmas, Ureaplasmas, Genital herpes, Candida
In vitro susceptibilities of mycoplasmas and ureaplasmas to new macrolides and aryl-fluoroquinolones.