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Phenotypic differences between coryneform bacteria isolated from seminal fluid of healthy men and men with chronic prostatitis syndrome

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Asian Journal of Andrology 2009年第4期11卷 517-520页

作者： iuri b ivanov viktor a gritsenko michael d kuzmin department of Human Microbiology Institute of Cellular and Intracellular Symbiosis Russian Academy of Sciences Orenburg 460056 Russia

We compared the potential phenotypic properties of coryneform bacteria associated with chronic prostatitis syndrome （CPS）, such as secretory inhibitor of lysozyme （SIL） and secretory inhibitor of platelet microbicidal protein （SIPMP）. A total of 110 clinical isolates of coryneform bacteria isolated from the seminal fluid of healthy men and men with CPS were tested. SIPMP production was tested by inhibiting platelet microbicidal protein （PMP） bioactivity against bacillus subtilis, and was expressed as percentage of inhibition of PMP bactericidal activity. SIL production was tested by inhibiting lysozyme activity against Micrococcus lysodeikticus and was expressed in microgram per millilitre of inactivated lysozyme. A significantly higher proportion of CPS strains （58.7% vs. 19.2 %） was SIPMP-positive compared with non-CPS strains （P 〈 0.01）. Of the CPS strains tested, 77.8% were SIL-positive compared with 34% of the non- CPS isolates （P 〈 0.05）. These results suggest that the diagnosis of CPS should not rely solely on classical parameters, for example, the identification and counting of microorganisms, but the functional significance of these parameters must be estimated, possibly by the concentration of different bacterial substrains, detection of opportunistic microorganisms with pathogenic properties, such as pronounced resistance to the cationic antimicrobial peptides, and/or the ability to inhibit the antimicrobial host defence factors.

关键词： Corynebacterium spp lysozyme platelet microbicidal protein prostatitis

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distribution of secretory inhibitor of platelet microbicidal protein among urethral isolates with its correlation with prostatitis

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Asian Journal of Andrology 2008年第2期10卷 189-192页

作者： iuri b. ivanov viktor A. gritsenko michael d. kuzmin department of Human Microbiology Institute of Cellular and Intracellular Symbiosis Russian Academy of SciencesOrenburg 460056 Russia

Aim： To report the detection in vitro of secretory inhibitor of platelet microbicidal protein （SIPMP） phenotypes of urethral isolates along with a comparisonwith isolates from patients with or without chronic bacterial prostatitis （CbP）. Methods： Urethral isolates of Staphylococcus spp. （n = 64）, diphtheroids （n = 28）, micrococci （n = 15）, streptococci （n = 21）, Enterobacteriaceae （n = 9） and Enterococcusfaecalis （n = 19） from patients with or without CbP were tested. SIPMP production was tested by inhibition of platelet microbicidal protein （PMP） bioactivity against bacillus subtilis and was expressed as percentage of inhibition of PMP bactericidal activity. Results： A significantly higher proportion of CbP-strains （57.78% vs. 16.67%） reduced PMP-induced killing of bacillus subtilis than non- CbP strains did （P 〈 0.01）. SIPMP levels of staphylococci and Enterococcusfaecalis from the CbP group were significantly higher than those of the control group. Conclusion： These results suggest that SIPMP production is associated with the CbP source. data from the present study might have significant implications for the understanding of the pathogenesis of CbP. （Asian J Androl 2008 Mar; 10： 189-192）.

关键词： bacteriology platelet microbicidal protein prostatitis

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