Corynebacterium glucuronolyticum in men with and without urethritis syndrome: An underrecognized pathogen or a bona fide commensal? - 20/11/22
, M. Neuberg b, 1, M. Sviben d, e, R. Ribić b, D. Drenjančević f, g, I. Škrlec h, J. Talapko h, G. Kozina b, Z. Profozić cHighlights |
• | The role of Corynebacterium (C.) glucuronolyticum in urethritis is underacknowledged. |
• | This species is more common as a sole isolate in men with urethritis than in those without it. |
• | Prior infection with chlamydia is more frequent in C. glucuronolyticum-positive patients with urethritis. |
• | Most C. glucuronolyticum-positive patients with urethritis present with dysuria. |
• | Resistance of C. glucuronolyticum to commonly used antibiotics is not unusual. |
Abstract |
Background |
By analysing the largest collection of Corynebacterium glucuronolyticum (C. glucuronolyticum) isolates from a single centre thus far, we aimed to appraise a potential causal link between an infrequently isolated species and the urethritis syndrome in men.
Methods |
A total of 1055 Caucasian male individuals with or without urethritis syndrome were included in this single-centre case-control study. Group-wise comparisons were pursued by analysing sociodemographic, behavioural and microbiological specificities between the two groups. C. glucuronolyticum isolates from urethral specimens were identified using the analytical profile index biotyping system (API Coryne) and additionally confirmed by MALDI-TOF mass-spectrometry, with subsequent determination of their antimicrobial sensitivity profiles. Statistical significance was set at p < 0.05 (two-tailed).
Results |
C. glucuronolyticum was isolated in 5.08% of study participants with urethritis syndrome and 3.60% of those without it (p = 0.303). In the urethritis group, the species was more frequently found as a sole isolate (p = 0.041) and after prior infection with Chlamydia trachomatis (p = 0.025). The most frequent presentation of urethritis included a clear discharge in small or moderate amounts, without any pathognomonic findings. The resistance rates were 62.22% for clindamycin, 42.22% for tetracycline and 26.67% for ciprofloxacin.
Conclusions |
Our study provides major insights on the relevance of urethral C. glucuronolyticum in non-gonococcal urethritis, with significant implications for further aetiological research and management approaches.
Le texte complet de cet article est disponible en PDF.Keywords : Corynebacterium glucuronolyticum, Urethritis, Men, Sexually transmitted infections
Plan
Vol 52 - N° 8
P. 441-446 - novembre 2022 Retour au numéro
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