GynecologyGynecology2079-56962079-5831Consilium Medicum7608810.26442/20795696.2021.3.200905Review ArticleVaginal microbiota during the menopausal transition: the role of lactobacilliDobrokhotovaYulia E.<p>D. Sci. (Med.), Prof., Pirogov Russian National Research Medical University</p>pr.dobrohotova@mail.ruhttps://orcid.org/0000-0002-7830-2290ShadrovaPolina A.<p>Graduate Student</p>shadrovapolina@hotmail.comhttps://orcid.org/0000-0002-3721-1421KomagorovVladimir I.<p>Graduate Student</p>vladimirus62@gmail.comhttps://orcid.org/0000-0003-4510-4244Pirogov Russian National Research Medical University130820212332142211607202116072021Copyright © 2021, Consilium Medicum2021<p>Physiological loss of ovarian function during the menopausal transition often leads to the development of unfavorable symptoms associated with vulvovaginal atrophy, recurrent urinary tract infections and dyspareunia. Currently, the scientific community is actively discussing the risks and benefits of prescribing menopausal hormone therapy to relieve the consequences of estrogen deficiency. The study of vaginal microbiota in dynamics made it possible to take a deeper look at the development of genitourinary menopausal syndrome and associate several microorganisms with specific undesirable manifestations. The link between recurrent urinary tract infections during menopause and physiological replacement of microbiota by opportunistic flora with the development of unpleasant symptoms resolves doctors to resort to irrational courses of antibiotic therapy. The review is devoted to the generalization of information on microbiological changes in the vagina during perimenopause, the possibilities of choosing the optimal hormone therapy for the correction of symptoms, the use of new promising methods, including management by modulating the vaginal microbiota.</p>menopausemenopausal hormone therapyestrogen deficiencyvaginal microbiotalactobacilligenitourinary syndromevulvovaginal atrophyменопаузаменопаузальная гормональная терапияэстрогенодефицитмикробиота влагалищапробиотикигенитоуринарный синдромвульвовагинальная атрофия[World population ageing 2019. Highlights. New York City (NY): United Nations, Department of Economic and Social Affairs, 2019 (ST/ESA/SER.A/430) Available at: https://www.un.org/en/development/desa/population/publications/pdf/ageing/WorldPopulationAgeing2019-Highlights.pdf. Accessed: November 2019.][Portman D, Gass M. Vulvovaginal Atrophy Terminology Consensus Conference Panel. Genitourinary syndrome of menopause: new terminology for vulvovaginal atrophy from the International Society for the Study of Women’s Sexual Health and the North American Menopause Society. Menopause. 2014;21:1063-8. DOI:10.1097/GME.0000000000000329][Oge T, Hassa H, Aydin Y, et al. The relationship between urogenital symptoms and climacteric complaints. Climacteric. 2013;16:646-52. DOI:10.3109/13697137.2012.756467][Kim HK, Kang SY, Chung YJ, et al. The Recent Review of the Genitourinary Syndrome of Menopause. J Menopausal Med. 2015;21(2):65-71. DOI:10.6118/jmm.2015.21.2.65][Lamont R, Sobel J, Akins R, et al. The vaginal microbiome: new information about genital tract flora using molecular based techniques. BJOG. 2011;118(5):533-49. DOI:10.1111/j.1471-0528.2010.02840.x][Soules M, Sherman S, Parrott E, et al. Executive summary: Stages of Reproductive Aging Workshop (STRAW). Climacteric. 2001;4:267-72.][Van de Wijgert JH, Borgdorff H, Verhelst R, et al. The vaginal microbiota: what have we learned after a decade of molecular characterization? Plos ONE. 2014;9(8):e105998. DOI:10.1371/journal.pone.0105998][Доброхотова Ю.Э., Затикян Н.Г. Микроэкология и защитные механизмы влагалища. Акушерство, гинекология и репродукция. 2007;2:10-2 [Dobrokhotova IuE, Zatikian NG. Mikroekologiia i zashchitnye mekhanizmy vlagalishcha. Akusherstvo, ginekologiia i reproduktsiia. 2007;2:10-2 (in Russian)].][Brubaker P. Linking the gut microbiome to metabolism through endocrine hormones. Endocrinology. 2018;59(8):2978-9. DOI:10.1210/en.2018-00577][Saba E, Origoni M, Taccagni G, et al. Productive HIV-1 infection of human cervical tissue ex vivo is associated with the secretory phase of the menstrual cycle. Mucosal Immunol. 2013;6(6):1081-90. DOI:10.1038/mi.2013.2][Berman JR, Almeida FG, Jolin J, et al. Correlation of androgen receptors, aromatase, and 5-alpha reductase in the human vagina with menopausal status. Fertil Steril. 2003;79:925-31. DOI:10.1016/s0015-0282(02)04923-3][Baldassarre M, Giannone FA, Foschini MP, et al. Effects of longterm high dose testosterone administration on vaginal epithelium structure and estrogen receptor-alpha and -beta expression of young women. Int J Impot Res. 2013;25:172-7. DOI:10.1038/ijir.2013.9][Nappi R, Palacios S. Impact of vulvovaginal atrophy on sexual health and quality of life at postmenopause. Climacteric. 2014;17:3-9. DOI:10.3109/13697137.2013.871696][Sturdee D, Panay N. Recommendations for the management of postmenopausal vaginal atrophy. Climacteric. 2010;13:509-22. DOI:10.3109/ 13697137.2010.522875][Brotman R, Shardell M, Gajer P, et al. Association between the vaginal microbiota, menopause status, and signs of vulvovaginal atrophy. Menopause. 2014;21:450-8. DOI:10.1097/GME.0b013e3182a4690b][Ravel J, Gajer P, Abdo Z, et al. Vaginal microbiome of reproductive-age women. Proc Natl Acad Sci USA. 2011;108 Suppl. 1(Suppl. 1):4680-7. DOI:10.1073/pnas.1002611107][Donders GG, Vereecken A, Bosmans E, et al. Definition of a type of abnormal vaginal flora that is distinct from bacterial vaginosis: aerobic vaginitis. BJOG. 2002;109(1):34-43. DOI:10.1111/j.1471-0528.2002.00432.x][Brotman R, Shardell M, Gajer P, et al. Association between the vaginal microbiota, menopause status, and signs of vulvovaginal atrophy. Menopause. 2014;21:450-8. DOI:10.1097/GME.0b013e3182a4690b][Drew O, Sherrard J. Sexually transmitted infections in the older woman. Menopause Int. 2008;14(3):134-5. DOI:10.1258/mi.2008.008020][Cauci S, Driussi S, De Santo D, et al. Prevalence of bacterial vaginosis and vaginal flora changes in peri- and postmenopausal women. J Clin Microbiol. 2002;40:2147-52. DOI:10.1128/jcm.40.6.2147-2152.2002][Dennerstein GJ, Ellis DH. Oestrogen, glycogen and vaginal candidiasis. Aust N Z J Obstet Gynaecol. 2001;41(3):326-8. DOI:10.1111/j.1479-828x.2001.tb01238.x][Fischer G, Bradford J. Vulvovaginal candidiasis in postmenopausal women: the role of hormone replacement therapy. J Low Genit Tract Dis. 2011;15:263-7. DOI:10.1097/LGT.0b013e3182241f1a][Burton JP, Reid G. Evaluation of the bacterial vaginal flora of 20 postmenopausal women by direct (Nugent score) and molecular (polymerase chain reaction and denaturing gradient gel electrophoresis) techniques. J Infect Dis. 2002;186(12):1770-80. DOI:10.1086/345761][Huang AJ, Moore EE, Boyko EJ, et al. Vaginal symptoms in postmenopausal women: self-reported severity, natural history, and risk factors. Menopause. 2010;17(1):121-6. DOI:10.1097/gme.0b013e3181acb9ed][Taylor-Robinson D, McCaffrey M, Pitkin J, et al. Bacterial vaginosis in climacteric and menopausal women. Int J STD AIDS. 2002;13(7):449-52. DOI:10.1258/09564620260079581][Hummelen R, Macklaim J, Bisanz J, et al. Vaginal microbiome and epithelial gene array in post-menopausal women with moderate to severe dryness. Plos ONE. 2011;6(11):e26602. DOI:10.1371/journal.pone.0026602][Perrotta C, Aznar M, Mejia R, et al. Oestrogens for preventing recurrent urinary tract infection in postmenopausal women. Cochrane Database Syst Rev. 2008;16(2):CD005131. DOI:10.1002/14651858.CD005131.pub2][Nazarko L. Recurrent urinary tract infection in older women: an evidencebased approach. Br J Community Nurs. 2013;18:407-12. DOI:10.12968/bjcn.2013.18.8.407][Thomas-White KJ, Hilt EE, Fok C, et al. Incontinence medication response relates to the female urinary microbiota. Int Urogynecol J. 2016;27:723-33. DOI:10.1007/s00192-015-2847-x][Baber R, Panay N, Fenton A, et al. The IMS Writing Group 2016 IMS Recommendations on women’s midlife health and menopause hormone therapy. Climacteric. 2016;19(2):109-50. DOI:10.3109/13697137.2015.1129166][Moore K, Dumoulin C, Bradley C, et al. Adult conservative management. Ed. P Abrams, L Cardozo, S Khoury, A Wein. International consultation on urinary incontinence. 5th ed. Plymbridge, UK: Health Publications Ltd., 2013; p. 1101-95.][Менопаузальная гормонотерапия и сохранение здоровья женщин в зрелом возрасте. Клинические рекомендации (протокол лечения). Письмо Министерства здравоохранения Российской Федерации от 2 октября 2015 г. №15-4/10/2-5804 [Menopauzal'naia gormonoterapiia i sokhranenie zdorov'ia zhenshchin v zrelom vozraste. Klinicheskie rekomendatsii (protokol lecheniia). Pis'mo Ministerstva zdravookhraneniia Rossiiskoi Federatsii ot 2 oktiabria 2015 g. №15-4/10/2-5804 (in Russian)].][De Villiers TJ, Gass ML, Haines CJ, et al. Global consensus statement on menopausal hormone therapy. Climacteric. 2013;16(2):203-4. DOI:10.3109/13697137.2013.771520][Larsen B, Markovetz AJ, Galask RP. Relationship of vaginal cytology to alterations of the vaginal microflora of rats during the estrous cycle. Appl Environ Microbiol. 1977;33(3):556-62. DOI:10.1128/AEM.33.3.556-562.1977][Devillard E, Burton JP, Hammond JA, et al. Novel insight into the vaginal microflora in postmenopausal women under hormone replacement therapy as analyzed by PCR-denaturing gradient gel electrophoresis. Eur J Obstet Gynecol Reprod Biol. 2004;117(1):76-81. DOI:10.1016/j.ejogrb.2004.02.001][Ginkel PD, Soper DE, Bump RC, Dalton HP. Vaginal flora in postmenopausal women: the effect of estrogen replacement. Infect Dis Obstet Gynecol. 1993;1(2):94-7. DOI:10.1155/S1064744993000225][Heinemann C, Reid G. Vaginal microbial diversity among postmenopausal women with and without hormone replacement therapy. Can J Microbiol. 2005;51(9):777-81. DOI:10.1139/w05-070][Setty P, Redekal L, Warren MP. Vaginal estrogen use and effects on quality of life and urogenital morbidity in postmenopausal women after publication of the Women's Health Initiative in New York City. Menopause. 2016;23(1):7-10. DOI:10.1097/GME.0000000000000493][Galhardo CL, Soares JM Jr, Simoes RS, et al. Estrogen effects on the vaginal pH, flora and cytology in late postmenopause after a long period without hormone therapy. Clin Exp Obstet Gynecol. 2006;33(2):85-9.][Goldstein I, Alexander JL. Practical aspects in the management of vaginal atrophy and sexual dysfunction in perimenopausal and postmenopausal women. J Sex Med. 2005;2 (Suppl. 3):154-65. DOI:10.1111/j.1743-6109.2005.00131.x][Lethaby A, Ayeleke RO, Roberts H. Local oestrogen for vaginal atrophy in postmenopausal women. Cochrane Database Syst Rev. 2016;2016(8):CD001500. DOI:10.1002/14651858.CD001500.pub3][Nappi RE, Davis SR. The use of hormone therapy for the maintenance of urogynecological and sexual health post WHI. Climacteric. 2012;15:267-74. DOI:10.3109/13697137.2012.657589][Caretto M, Giannini A, Russo E, Simoncini T. Preventing urinary tract infections after menopause without antibiotics. Maturitas. 2017;99:43-6. DOI:10.1016/j.maturitas.2017.02.004][Russo E, Caretto M, Giannini A, et al. Management of urinary incontinence in postmenopausal women: An EMAS clinical guide. Maturitas. 2021;143:223-30. DOI:10.1016/j.maturitas.2020.09.005][Cobin RH, Goodman NF; AACE Reproductive Endocrinology Scientific Committee. American association of clinical endocrinologists & American college of endocrinology position statement on menopause-2017 Update. Endocr Pract. 2017;23(7):869-80. DOI:10.4158/EP171828.PS][Archer DF, Constantine GD, Simon JA, et al. TX-004HR vaginal estradiol has negligible to very low systemic absorption of estradiol. Menopause. 2017;24(5):510-6. DOI:10.1097/GME.0000000000000790][Constantine GD, Bouchard C, Pickar JH, et al. Consistency of effect with a low-dose, estradiol vaginal capsule (TX-004HR): evaluating improvement in vaginal physiology and moderate-to-severe dyspareunia in subgroups of postmenopausal women. J Women’s Health. 2017;26(6):616-23. DOI:10.1089/jwh.2016.6187][Yarbrough VL, Winkle S, Herbst-Kralovetz MM. Antimicrobial peptides in the female reproductive tract: a critical component of the mucosal immune barrier with physiological and clinical implications. Hum Reprod Update. 2015;21(3):353-77. DOI:10.1093/humupd/dmu065.U][Donders GGG, Ruban K, Bellen G, Grinceviciene S. Pharmacotherapy for the treatment of vaginal atrophy. Expert Opin Pharmacother. 2019;20(7):821-35. DOI:10.1080/14656566.2019.1574752][Griesser H, Skonietzki S, Fischer T, et al. Low dose estriol pessaries for the treatment of vaginal atrophy: a double-blind placebo-controlled trial investigating the efficacy of pessaries containing 0.2 mg and 0.03 mg estriol. Maturitas. 2012;71(4):360-8. DOI:10.1016/j.maturitas.2011.12.022][Jaisamrarn U, Triratanachat S, Chaikittisilpa S, et al. Ultra-low-dose estriol and lactobacilli in the local treatment of postmenopausal vaginal atrophy. Climacteric. 2013;16(3):347-55. DOI:10.3109/13697137.2013.769097][Donders G, Bellen G, Neven P, et al. Effect of ultra-low-dose estriol and lactobacilli vaginal tablets (Gynoflor®) on inflammatory and infectious markers of the vaginal ecosystem in postmenopausal women with breast cancer on aromatase inhibitors. Eur J Clin Microbiol Infect Dis. 2015;34(10):2023-8. DOI:10.1007/s10096-015-2447-1][Buchholz S, Mogele M, Lintermans A, et al. Vaginal estriol-lactobacilli combination and quality of life in endocrine-treated breast cancer. Climacteric. 2015;18(2):252-9. DOI:10.3109/13697137.2014.991301][Perrota C, Aznar M, Mejia R, et al. Oestrogens for preventing recurrent urinary tract infection in postmenopausal women. Cochrane Database Syst Rev. 2008;16(2):CD005131. DOI:10.1002/14651858.CD005131.pub2][Labrie F, Belanger A, Pelletier G, et al. Science of intracrinology in postmenopausal women. Menopause. 2017;24(6):702-12. DOI:10.1097/GME.0000000000000808][Labrie F, Archer DF, Koltun W, et al. Efficacy of intravaginal dehydroepiandrosterone (DHEA) on moderate to severe dyspareunia and vaginal dryness, symptoms of vulvovaginal atrophy, and of the genitourinary syndrome of menopause. Menopause. 2016;23(3):243-56. DOI:10.1097/GME.0000000000000571][Brown JM, Hess KL, Brown S, et al. Intravaginal practices and risk of bacterial vaginosis and candidiasis infection among a cohort of women in the United States. Obstet Gynecol. 2013;121(4):773-80. DOI:10.1097/AOG.0b013e31828786f8][Lima SM, Bernardo BF, Yamada SS, et al. Effects of Glycine max (L.) Merr. soy isoflavone vaginal gel on epithelium morphology and estrogen receptor expression in postmenopausal women: a 12-week, randomized, double-blind, placebo-controlled trial. Maturitas. 2014;78(3):205-11. DOI:10.1016/j.maturitas.2014.04.007][Arunkalaivanan A, Kaur H, Onuma O. Laser therapy as a treatment modality for genitourinary syndrome of menopause: a critical appraisal of evidence. Int Urogynecol J. 2017;28(5):681-5. DOI:10.1007/s00192-017-3282-y.]