Vaginal lipidomics of women with vulvovaginal candidiasis and cytolytic vaginosis: A non-targeted LC-MS pilot study

Author(s)

Sanches, Jose Marcos ^[1] ; Giraldo, Paulo Cesar ^[1] ; Amaral, Rose ^[1] ; Eberlin, Marcos Nogueira ^[2] ; Marques, Lygia Azevedo ^[2] ; Migliorini, Isabel ^[1] ; Nakahira, Marcel ^[2] ; Marinus Bieleveld, Michel Jan ^[3] ; Discacciati, Michelle Garcia ^[4]

Affiliation

^[1] Univ Estadual Campinas, Dept Tocoginecol, Campinas, SP - Brazil

^[2] Univ Estadual Campinas, Inst Chem, Campinas, SP - Brazil

^[3] Univ Sao Paulo, Polytech Sch, Sao Paulo, SP - Brazil

^[4] Univ Sao Paulo, Sch Pharmaceut Sci, Sao Paulo, SP - Brazil

• Document type: Journal article
• Source: PLoS One; v. 13, n. 8 AUG 22 2018.
• Web of Science Citations: 0

Abstract

Objective To characterize the lipid profile in vaginal discharge of women with vulvovaginal candidiasis, cytolytic vaginosis, or no vaginal infection or dysbiosis. Design Cross-sectional study. Setting Genital Infections Ambulatory, Department of Tocogynecology, University of Campinas, Campinas, Sao Paulo-Brazil. Sample Twenty-four women were included in this study: eight with vulvovaginal candidiasis, eight with cytolytic vaginosis and eight with no vaginal infections or dysbiosis (control group). Methods The lipid profile in vaginal discharge of the different study groups was determined by liquid chromatography-mass spectrometry and further analyzed with MetaboAnalyst 3.0 platform. Main outcome measures Vaginal lipids concentration and its correlation with vulvovaginal candidiasis and cytolytic vaginosis. Results PCA, PLS-DA and hierarchical clustering analyses indicated 38 potential lipid biomarkers for the different groups, correlating with oxidative stress, inflammation, apoptosis and integrity of the vaginal epithelial tissue. Among these, greater concentrations were found for Glycochenodeoxycholic acid-7-sulfate, O-adipoylcarnitine, 1-eicosyl-2-heptadecanoyl-glycero3- phosphoserine, undecanoic acid, formyl dodecanoate and lipoic acid in the vulvovaginal candidiasis group; N-(tetradecanoyl)-sphinganine, DL-PPMP, 1-oleoyl-cyclic phosphatidic, palmitic acid and 5-aminopentanoic acid in the cytolytic vaginosis group; and 1-nonadecanoyl-glycero-3-phosphate, eicosadienoic acid, 1-stearoyl-cyclic-phosphatidic acid, 1-(9Z, 12Z-heptadecadienoyl)-glycero-3-phosphate, formyl 9Z-tetradecenoate and 7Z, 10Z-hexadecadienoic acid in the control group. Conclusions Lipids related to oxidative stress and apoptosis were found in higher concentrations in women with vulvovaginal candidiasis and cytolytic vaginosis, while lipids related to epithelial tissue integrity were more pronounced in the control group. Furthermore, in women with cytolytic vaginosis, we observed higher concentrations of lipids related to bacterial overgrowth. (AU)

• FAPESP's process: 16/18850-9 - Lipidomics analysis of the vaginal discharge in women with vulvovaginal candidiasis and cytolytic vaginosis
• Grantee: José Marcos Sanches Junior
• Support type: Scholarships in Brazil - Master