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  • Title: Mannose-binding lectin and vulvovaginal candidiasis.
    Author: Liu F, Liao Q, Liu Z.
    Journal: Int J Gynaecol Obstet; 2006 Jan; 92(1):43-7. PubMed ID: 16256117.
    Abstract:
    OBJECTIVE: To investigate the effect of mannose-binding lectin (MBL) gene polymorphism on the immune system and the significance of vaginal MBL concentration in the pathogenesis of vulvovaginal candidiasis (VVC) and recurrent VVC (rVVC). PATIENTS AND METHODS: Mannose-binding lectin concentrations in CVL samples from 111 women were collected between August 2004 and November 2004, 51 with VVC, 6 with rVVC patients, and 54 healthy women. CVL MBL concentrations were determined by enzyme-linked immunosorbent assay, and MBL gene polymorphism was analyzed by polymerase chain reaction and the restriction fragment length polymorphism method. RESULTS: Cervicovaginal lavage MBL concentration (17.80 ng/mL) and gene mutation frequency (33.33%) were both significantly higher in women with VVC (P<0.01) than in controls (odds ratio [OR], 2.93; 95% confidence interval [CI], 1.14-7.57; P<0.05). On the other hand, MBL concentration was lower in women with rVVC (0.30 ng/mL) than in controls (1.28 ng/mL) (P<0.05), although MBL gene mutation frequency (83.33%) was significantly higher in women with rVVC than in controls (OR, 26.87; 95% CI, 2.76-261.65; P<0.01). CONCLUSIONS: The presence of VVC can increase vaginal MBL level, which may be an immune response against Candida albicans infection; in women with rVVC, the low level of MBL in the vagina caused by mutation in the MBL gene may play a role in the recurrence of the infection.
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