Kooperativer Bibliotheksverbund

Berlin Brandenburg

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  • 1
    Language: English
    In: PLoS ONE, 2012, Vol.7(5), p.e36298
    Description: Lactobacillus- dominated vaginal microbiotas are associated with reproductive health and STI resistance in women, whereas altered microbiotas are associated with bacterial vaginosis (BV), STI risk and poor reproductive outcomes. Putative vaginal taxa have been observed in male first-catch urine, urethral swab and coronal sulcus (CS) specimens but the significance of these observations is unclear. We used 16 S rRNA sequencing to characterize the microbiota of the CS and urine collected from 18 adolescent men over three consecutive months. CS microbiotas of most participants were more stable than their urine microbiotas and the composition of CS microbiotas were strongly influenced by circumcision. BV-associated taxa, including Atopobium , Megasphaera , Mobiluncus , Prevotella and Gemella , were detected in CS specimens from sexually experienced and inexperienced participants. In contrast, urine primarily contained taxa that were not abundant in CS specimens. Lactobacilllus and Streptococcus were major urine taxa but their abundance was inversely correlated. In contrast, Sneathia , Mycoplasma and Ureaplasma were only found in urine from sexually active participants. Thus, the CS and urine support stable and distinct bacterial communities. Finally, our results suggest that the penis and the urethra can be colonized by a variety of BV-associated taxa and that some of these colonizations result from partnered sexual activity.
    Keywords: Research Article ; Biology ; Medicine ; Public Health And Epidemiology ; Infectious Diseases ; Microbiology ; Urology
    E-ISSN: 1932-6203
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  • 2
    Language: English
    In: Sexually Transmitted Infections, 12 September 2019
    Description: (CT) and (MG) cause the majority of non-gonococcal urethritis (NGU). The role of (UU) in NGU is unclear. Prior case–control studies that examined the association of UU and NGU may have been confounded by mixed infections and less stringent criteria for controls. The objective of this case–control study was to determine the prevalence and aetiology of mixed infections in men and assess if UU monoinfection is associated with NGU.
    Keywords: Urethritis ; Chlamydia Trachomatis ; Chlamydia Infection ; Mycoplasma ; Epidemiology (General)
    ISSN: 1368-4973
    ISSN: 13684973
    E-ISSN: 1472-3263
    E-ISSN: 14723263
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  • 3
    Language: English
    In: Sexually transmitted diseases, July 2019, Vol.46(7), pp.440-445
    Description: Rectal infection with Chlamydia trachomatis (CT) is frequent in women who deny receptive anal sex and is thought to arise from autoinoculation of the rectum from vaginal secretions. An alternate hypothesis is that oral sex inoculates and establishes gastrointestinal tract infection. Distinguishing these... We enrolled high-risk men with and without nongonococcal urethritis who presented to a sexually transmitted infection clinic in Indianapolis, Indiana. Urine and rectal swabs were collected and tested for urogenital and rectal CT, Neisseria gonorrhoeae (NG), and Mycoplasma genitalium (MG). Men completed... Rectal CT was detected in 2/84 (2.4%) heterosexual men who reported cunnilingus, but no lifetime receptive anal behaviors. All of the men who denied receptive anal behaviors were negative for rectal NG and MG. In homosexual and bisexual men, rectal CT prevalence was high (9.7%), and rectal NG (4.8%)... We detected rectal CT infections in heterosexual men who reported cunnilingus but denied receptive anal behaviors. Oral sex may be a risk factor for rectal CT infection via oral inoculation of the gastrointestinal tract.
    Keywords: Chlamydia Trachomatis ; Infections ; Vagina ; Detection ; Urethritis ; Urine ; Sex ; Chlamydia Trachomatis ; Gastrointestinal Tract ; Chlamydia ; Inoculation ; Gastrointestinal Tract ; Secretions ; Sexual Behavior ; Women ; Urine ; Chlamydia Trachomatis ; Inoculation ; Rectum ; Risk Groups;
    ISSN: 01485717
    E-ISSN: 1537-4521
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