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    Correlation between serum reactivity to Demodex-associated Bacillus oleronius proteins, and altered sebum levels and Demodex populations in erythematotelangiectatic rosacea patients


    Jarmuda, Stanislaw and McMahon, Fred and Zaba, Ryszard and O'Reilly, Niamh and Jakubowicz, Oliwia and Holland, Ashling and Szkaradkiewicz, Andrzej and Kavanagh, Kevin (2014) Correlation between serum reactivity to Demodex-associated Bacillus oleronius proteins, and altered sebum levels and Demodex populations in erythematotelangiectatic rosacea patients. Journal of Medical Microbiology, 63. pp. 258-262. ISSN 0022-2615

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    Abstract

    Rosacea is a chronic inflammatory condition that affects the skin of the face and the eyes. The aetiology of rosacea is not clearly established but increasing evidence suggests a potential role for bacteria in the induction of the condition. A role for Bacillus oleronius, originally isolated from within a Demodex folliculorum mite, in the aetiology of the condition has been suggested. The aim of the study was to determine whether a correlation existed between the level of sebum and the density of D. folliculorum in the skin of erythematotelangiectatic rosacea patients, and the reactivity of these patients’ sera to proteins of B. oleronius. Serum reactivity to the 62 and 83 kDa B. oleronius proteins was found in 82.6% (62/75) of the rosacea patients and in 26.9% (14/52) of controls (P50.0016). In the group of rosacea patients whose sera reacted to B. oleronius proteins, the level of sebum was statistically lower than in controls (P50.01). The density of D. folliculorum on the face of Bacillus positive rosacea patients was statistically higher than controls (P50.0001). Rosacea patients demonstrated increased Demodex populations on their faces and reduced sebum levels. Their sera also showed reactivity to B. oleronius proteins, suggesting a potential role for this bacterium in the aetiology of rosacea.

    Item Type: Article
    Keywords: serum reactivity; Demodex-associated Bacillus oleronius proteins; sebum levels; Demodex populations; erythematotelangiectatic rosacea;
    Academic Unit: Faculty of Science and Engineering > Biology
    Item ID: 7564
    Identification Number: https://doi.org/10.1099/jmm.0.065136-0
    Depositing User: Dr. Kevin Kavanagh
    Date Deposited: 20 Oct 2016 15:40
    Journal or Publication Title: Journal of Medical Microbiology
    Publisher: Society for General Microbiology
    Refereed: Yes
    Funders: Higher Education Authority (HEA)
    URI:

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