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Faustino M, Pereira JO, Pereira AM, Oliveira AS, Ferreira CMH, Pereira CF, Durão J, Pintado ME, Carvalho AP. Vaginal prevention of Candida albicans: synergistic effect of lactobacilli and mannan oligosaccharides (MOS). Appl Microbiol Biotechnol 2024; 108:73. [PMID: 38194142 PMCID: PMC10776728 DOI: 10.1007/s00253-023-12909-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 11/28/2023] [Accepted: 12/06/2023] [Indexed: 01/10/2024]
Abstract
Vulvovaginal candidiasis (VVC) affects approximately 30-50% of women at least once during their lifetime, causing uncomfortable symptoms and limitations in their daily quality of life. Antifungal therapy is not very effective, does not prevent recurrencies and usually causes side effects. Therefore, alternative therapies are urgently needed. The goal of this work was to investigate the potential benefits of using mannan oligosaccharides (MOS) extracts together with a Lactobacillus sp. pool, composed by the most significant species present in the vaginal environment, to prevent infections by Candida albicans. Microbial growth of isolated strains of the main vaginal lactobacilli and Candida strains was assessed in the presence of MOS, to screen their impact upon growth. A pool of the lactobacilli was then tested against C. albicans in competition and prophylaxis studies; bacterial and yeast cell numbers were quantified in specific time points, and the above-mentioned studies were assessed in simulated vaginal fluid (SVF). Finally, adhesion to vaginal epithelial cells (HeLa) was also evaluated, once again resorting to simultaneous exposure (competition) or prophylaxis assays, aiming to measure the effect of MOS presence in pathogen adherence. Results demonstrated that MOS extracts have potential to prevent vaginal candidiasis in synergy with vaginal lactobacilli, with improved results than those obtained when using lactobacilli alone. KEY POINTS: Potential benefits of MOS extracts with vaginal lactobacilli to prevent C. albicans infections. MOS impacts on growth of vaginal lactobacilli pool and C. albicans in SVF. MOS extracts in synergy with L. crispatus inhibit C. albicans adhesion in HeLa cells.
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Affiliation(s)
- Margarida Faustino
- Universidade Católica Portuguesa, CBQF- Centro de Biotecnologia E Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005, Porto, Portugal
| | - Joana Odila Pereira
- Universidade Católica Portuguesa, CBQF- Centro de Biotecnologia E Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005, Porto, Portugal.
- Amyris Bio Products Portugal Unipessoal Lda, Porto, Portugal.
| | - Ana Margarida Pereira
- Universidade Católica Portuguesa, CBQF- Centro de Biotecnologia E Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005, Porto, Portugal
- Amyris Bio Products Portugal Unipessoal Lda, Porto, Portugal
| | - Ana Sofia Oliveira
- Universidade Católica Portuguesa, CBQF- Centro de Biotecnologia E Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005, Porto, Portugal
| | - Carlos M H Ferreira
- Universidade Católica Portuguesa, CBQF- Centro de Biotecnologia E Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005, Porto, Portugal
- Amyris Bio Products Portugal Unipessoal Lda, Porto, Portugal
| | - Carla F Pereira
- Universidade Católica Portuguesa, CBQF- Centro de Biotecnologia E Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005, Porto, Portugal
| | - Joana Durão
- Universidade Católica Portuguesa, CBQF- Centro de Biotecnologia E Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005, Porto, Portugal
- Amyris Bio Products Portugal Unipessoal Lda, Porto, Portugal
| | - Manuela E Pintado
- Universidade Católica Portuguesa, CBQF- Centro de Biotecnologia E Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005, Porto, Portugal
| | - Ana P Carvalho
- Universidade Católica Portuguesa, CBQF- Centro de Biotecnologia E Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, 4169-005, Porto, Portugal.
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Bashir Z, Hugerth LW, Krog MC, Prast-Nielsen S, Edfeldt G, Boulund F, Schacht SR, Tetens I, Engstrand L, Schuppe-Koistinen I, Fransson E, Nielsen HS. Investigations of microbiota composition and neuroactive pathways in association with symptoms of stress and depression in a cohort of healthy women. Front Cell Infect Microbiol 2024; 14:1324794. [PMID: 39015337 PMCID: PMC11249552 DOI: 10.3389/fcimb.2024.1324794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Accepted: 06/07/2024] [Indexed: 07/18/2024] Open
Abstract
Background Despite mounting evidence of gut-brain involvement in psychiatric conditions, functional data remain limited, and analyses of other microbial niches, such as the vaginal microbiota, are lacking in relation to mental health. This aim of this study was to investigate if the connections between the gut microbiome and mental health observed in populations with a clinical diagnosis of mental illness extend to healthy women experiencing stress and depressive symptoms. Additionally, this study examined the functional pathways of the gut microbiota according to the levels of psychological symptoms. Furthermore, the study aimed to explore potential correlations between the vaginal microbiome and mental health parameters in young women without psychiatric diagnoses. Methods In this cross-sectional study, 160 healthy Danish women (aged 18-40 years) filled out questionnaires with validated scales measuring symptoms of stress and depression and frequency of dietary intake. Fecal and vaginal microbiota samples were collected at the beginning of the menstrual cycle and vaginal samples were also collected at cycle day 8-12 and 18-22. Shotgun metagenomic profiling of the gut and vaginal microbiome was performed. The Kyoto Encyclopedia of Genes and Genomes (KEGG) was used for functional profiling and 56 Gut Brain Modules were analyzed in the fecal samples. Results The relative abundance in the gut of the genera Escherichia, Parabacteroides, and Shigella was higher in women with elevated depressive symptoms. Women with high perceived stress showed a tendency of increased abundance of Escherichia, Shigella, and Blautia. Amongst others, the potentially pathogenic genera, Escherichia and Shigella correlate with alterations in the neuroactive pathways such as the glutamatergic, GABAeric, dopaminergic, and Kynurenine pathways. Vaginosis symptoms were more prevalent in women reporting high levels of stress and depressive symptoms. Conclusions The findings of this study support the concept of a microbiota-associated effect on the neuroactive pathways even in healthy young women. This suggest, that targeting the gut microbiome could be a promising approach for future psychiatric interventions.
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Affiliation(s)
- Zahra Bashir
- Department of Obstetrics and Gynecology, Slagelse Hospital, Slagelse, Denmark
- The Recurrent Pregnancy Loss Unit, Dept. of Fertility, The Capital Region, Copenhagen University Hospitals, Rigshospitalet, Copenhagen, Denmark
- Dept. of Obstetrics and Gynecology, Hvidovre Hospital, Hvidovre, Denmark
| | - Luisa W. Hugerth
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
- Department of Medical Biochemistry and Microbiology, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Maria Christine Krog
- The Recurrent Pregnancy Loss Unit, Dept. of Fertility, The Capital Region, Copenhagen University Hospitals, Rigshospitalet, Copenhagen, Denmark
- Dept. of Obstetrics and Gynecology, Hvidovre Hospital, Hvidovre, Denmark
- Department of Clinical Immunology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Stefanie Prast-Nielsen
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - Gabriella Edfeldt
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - Fredrik Boulund
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
- Science for Life Laboratory, Karolinska Institutet, Stockholm, Sweden
| | - Simon Rønnow Schacht
- Department of Nutrition, Exercise and Sports, University of Copenhagen, Copenhagen, Denmark
| | - Inge Tetens
- Department of Nutrition, Exercise and Sports, University of Copenhagen, Copenhagen, Denmark
| | - Lars Engstrand
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
- Science for Life Laboratory, Karolinska Institutet, Stockholm, Sweden
| | - Ina Schuppe-Koistinen
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
- Science for Life Laboratory, Karolinska Institutet, Stockholm, Sweden
| | - Emma Fransson
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
- Department of Women’s and Children’s Health, Uppsala University, Uppsala, Sweden
| | - Henriette Svarre Nielsen
- The Recurrent Pregnancy Loss Unit, Dept. of Fertility, The Capital Region, Copenhagen University Hospitals, Rigshospitalet, Copenhagen, Denmark
- Dept. of Obstetrics and Gynecology, Hvidovre Hospital, Hvidovre, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
- Department of Obstetrics and Gynecology, Hvidovre Hospital, Copenhagen, Denmark
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3
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Heil BA, van Heule M, Thompson SK, Kearns TA, Beckers KF, Oberhaus EL, King G, Daels P, Dini P, Sones JL. Metagenomic characterization of the equine endometrial microbiome during anestrus. J Equine Vet Sci 2024; 140:105134. [PMID: 38909766 DOI: 10.1016/j.jevs.2024.105134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Revised: 05/17/2024] [Accepted: 06/16/2024] [Indexed: 06/25/2024]
Abstract
The equine uterus is highly interrogated during estrus prior to breeding and establishing pregnancy. Many studies in mares have been performed during estrus under the influence of high estrogen concentrations, including the equine estrual microbiome. To date, it is unknown how the uterine microbiome of the mare is influenced by cyclicity; while, the equine vaginal microbiome is stable throughout the estrous cycle. We hypothesized that differences would exist between the equine endometrial microbiome of mares in estrus and anestrus. The aim of this study was two-fold: to characterize the resident endometrial microbiome of healthy mares during anestrus and to compare this with estrus. Double-guarded endometrial swabs were taken from healthy mares during estrus (n = 16) and in the following non-breeding season during anestrus (n = 8). Microbial population was identified using 16S rRNA sequencing. Our results suggest that the equine uterine microbiome in estrus has a low diversity and low richness, while during anestrus, a higher diversity and higher richness were seen compared to estrus. Despite this difference, both the estrus and anestrus endometrial microbiome were dominated by Proteobacteria, Firmicutes, and Bacteroidota. The composition of the microbial community between anestrus and estrus was significantly different. This may be explained by the difference in the composition of the endometrial immune milieu based on the stage of the cycle. Further research investigating the function of the equine endometrial microbiome and dynamics changes within the uterine environment is required.
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Affiliation(s)
- B A Heil
- Department of Veterinary Clinical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA, 70803, USA; Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Washington State University, Pullman, WA, 99164, USA
| | - M van Heule
- Department of Population Health and Reproduction (PHR), School of Veterinary Medicine, UCDavis, Davis, CA, 95616, USA; Department of Morphology, Imaging, Orthopedics, Rehabilitation and Nutrition, Faculty of Veterinary Medicine, UGent, Merelbeke, 9820, Belgium
| | - S K Thompson
- Department of Biological Sciences, Louisiana State University, Baton Rouge, LA, 70803, USA
| | - T A Kearns
- Department of Biological Sciences, Louisiana State University, Baton Rouge, LA, 70803, USA
| | - K F Beckers
- Department of Veterinary Clinical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA, 70803, USA
| | - E L Oberhaus
- School of Animal Sciences, Louisiana State University, Baton Rouge, LA, 70803, USA
| | - G King
- Department of Biological Sciences, Louisiana State University, Baton Rouge, LA, 70803, USA
| | - P Daels
- Department of Morphology, Imaging, Orthopedics, Rehabilitation and Nutrition, Faculty of Veterinary Medicine, UGent, Merelbeke, 9820, Belgium
| | - P Dini
- Department of Population Health and Reproduction (PHR), School of Veterinary Medicine, UCDavis, Davis, CA, 95616, USA
| | - J L Sones
- Department of Veterinary Clinical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA, 70803, USA; Equine Reproduction Laboratory, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, 80521, USA.
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Ponciano JM, Gómez JP, Ravel J, Forney LJ. Inferring stability and persistence in the vaginal microbiome: A stochastic model of ecological dynamics. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.03.02.581600. [PMID: 38464272 PMCID: PMC10925280 DOI: 10.1101/2024.03.02.581600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
The interplay of stochastic and ecological processes that govern the establishment and persistence of host-associated microbial communities is not well understood. Here we illustrate the conceptual and practical advantages of fitting stochastic population dynamics models to multi-species bacterial time series data. We show how the stability properties, fluctuation regimes and persistence probabilities of human vaginal microbial communities can be better understood by explicitly accommodating three sources of variability in ecological stochastic models of multi-species abundances: 1) stochastic biotic and abiotic forces, 2) ecological feedback and 3) sampling error. Rooting our modeling tool in stochastic population dynamics modeling theory was key to apply standardized measures of a community's reaction to environmental variation that ultimately depends on the nature and intensity of the intra-specific and inter-specific interaction strengths. Using estimates of model parameters, we developed a Risk Prediction Monitoring (RPM) tool that estimates temporal changes in persistence probabilities for any bacterial group of interest. This method mirrors approaches that are often used in conservation biology in which a measure of extinction risks is periodically updated with any change in a population or community. Additionally, we show how to use estimates of interaction strengths and persistence probabilities to formulate hypotheses regarding the molecular mechanisms and genetic composition that underpin different types of interactions. Instead of seeking a definition of "dysbiosis" we propose to translate concepts of theoretical ecology and conservation biology methods into practical approaches for the management of human-associated bacterial communities.
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Affiliation(s)
| | - Juan P. Gómez
- Departamento de Química y Biología, Universidad del Norte, Barranquilla, Colombia
| | - Jacques Ravel
- Institute for Genome Sciences and Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD
| | - Larry J. Forney
- Institute for Interdisciplinary Data Science and Department of Biological Sciences, University of Idaho, Moscow, ID
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Heil BA, van Heule M, Thompson SK, Kearns TA, Oberhaus EL, King G, Daels P, Dini P, Sones JL. Effect of Sampling Method on Detection of the Equine Uterine Microbiome during Estrus. Vet Sci 2023; 10:644. [PMID: 37999467 PMCID: PMC10675083 DOI: 10.3390/vetsci10110644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 10/28/2023] [Accepted: 11/01/2023] [Indexed: 11/25/2023] Open
Abstract
Bacterial endometritis is among the most common causes of subfertility in mares. It has a major economic impact on the equine breeding industry. The sensitivity of detecting uterine microbes using culture-based methods, irrespective of the sample collection method, double-guarded endometrial swab, endometrial biopsy, or uterine low-volume lavage (LVL), is low. Therefore, equine bacterial endometritis often goes undiagnosed. Sixteen individual mares were enrolled, and an endometrial sample was obtained using each method from all mares. After trimming, quality control and decontamination, 3824 amplicon sequence variants were detected in the dataset. We found using 16S rRNA sequencing that the equine uterus harbors a distinct resident microbiome during estrus. All three sampling methods used yielded similar results in composition as well as relative abundance at phyla (Proteobacteria, Firmicutes, and Bacteroidota) and genus (Klebsiella, Mycoplasma, and Aeromonas) levels. A significant difference was found in alpha diversity (Chao1) between LVL and endometrial biopsy, suggesting that LVL is superior at detecting the low-abundant (rare) taxa. These new data could pave the way for innovative treatment methods for endometrial disease and subfertility in mares. This, in turn, could lead to more judicious antimicrobial use in the equine breeding industry.
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Affiliation(s)
- B. A. Heil
- Department of Veterinary Clinical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803, USA;
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Washington State University, Pullman, WA 99164, USA
| | - M. van Heule
- Department of Population Health and Reproduction (PHR), School of Veterinary Medicine, University of California, Davis, CA 95616, USA (P.D.)
- Department of Morphology, Imaging, Orthopedics, Rehabilitation and Nutrition, Faculty of Veterinary Medicine, University of Ghent, 9820 Merelbeke, Belgium;
| | - S. K. Thompson
- Department of Biological Sciences, Louisiana State University, Baton Rouge, LA 70803, USA; (S.K.T.); (T.A.K.); (G.K.)
| | - T. A. Kearns
- Department of Biological Sciences, Louisiana State University, Baton Rouge, LA 70803, USA; (S.K.T.); (T.A.K.); (G.K.)
| | - E. L. Oberhaus
- School of Animal Sciences, Louisiana State University, Baton Rouge, LA 70803, USA;
| | - G. King
- Department of Biological Sciences, Louisiana State University, Baton Rouge, LA 70803, USA; (S.K.T.); (T.A.K.); (G.K.)
| | - P. Daels
- Department of Morphology, Imaging, Orthopedics, Rehabilitation and Nutrition, Faculty of Veterinary Medicine, University of Ghent, 9820 Merelbeke, Belgium;
| | - P. Dini
- Department of Population Health and Reproduction (PHR), School of Veterinary Medicine, University of California, Davis, CA 95616, USA (P.D.)
| | - J. L. Sones
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Washington State University, Pullman, WA 99164, USA
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Don EE, Mijatovic V, Huirne JAF. Infertility in patients with uterine fibroids: a debate about the hypothetical mechanisms. Hum Reprod 2023; 38:2045-2054. [PMID: 37771247 PMCID: PMC10628498 DOI: 10.1093/humrep/dead194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 09/08/2023] [Indexed: 09/30/2023] Open
Abstract
Fibroids are benign tumours of the myometrium and are the most common gynaecologic abnormality. Although most fibroids are asymptomatic, they can cause symptoms like heavy menstrual bleeding, pelvic pain, sexual dysfunction, pressure complaints, and infertility. The association between fibroids and infertility has been debated for decades. It is generally acknowledged that the closer the fibroid is to the uterine cavity and the endometrium lining, the more unfavourable effect it might have on fertility, reducing the odds for successful implantation and gestation. Based on the limited available literature, we propose and discuss seven hypotheses on the underlying mechanism by which fibroids may reduce fertility. (i) Fibroids can cause sexual dysfunction, as fibroids can cause dyspareunia, pelvic pain, and prolonged and heavy menstrual bleeding, which could interfere with sexual arousal and as a consequence the frequency of intercourse, resulting in a reduced probability of conception. (ii) Mechanical compression by fibroids on theinterstitial part of the fallopian tubes or deformation of uterine cavity could disturb oocyte and sperm transport. (iii) Fibroids can disturb peristalsis of the junctional zone in the myometrium, which could negatively influence oocyte and sperm transport as well as implantation. In addition, fibroids could induce a detrimental environment for implantation in other ways, by: (iv) changing the vagino-uterine microbiome; (v) disturbing the levels of inflammation and autophagy; (vi) inducing molecular changes in the endometrium; and (vii) inducing aberrant angiogenesis and altering the endometrial blood supply. After the discussion of these hypotheses, the implication of the influence of fibroids on early pregnancy loss is discussed. Surgical fibroid treatment is not tailored nor focussed on the pathophysiology of the fibroid; consequently it may be accompanied by recurrence of fibroids and risks of complications. Unravelling the pathogenic mechanisms about how fibroids influence fertility is essential to evolve classic surgical fibroid treatment. Instead of treatment of fibroid-related symptoms, the research should supports development of fibroid-targeted (pharmaceutical) treatment that is compatible with an active wish to become pregnant.
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Affiliation(s)
- Emma E Don
- Department of Obstetrics and Gynecology, Amsterdam UMC location Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
- Department of Obstetrics and Gynaecology, Amsterdam UMC, University of Amsterdam, Amsterdam Reproduction and Development, Amsterdam, The Netherlands
| | - Velja Mijatovic
- Department of Obstetrics and Gynecology, Amsterdam UMC location Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
- Department of Obstetrics and Gynaecology, Amsterdam UMC, University of Amsterdam, Amsterdam Reproduction and Development, Amsterdam, The Netherlands
| | - Judith A F Huirne
- Department of Obstetrics and Gynecology, Amsterdam UMC location Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
- Department of Obstetrics and Gynaecology, Amsterdam UMC, University of Amsterdam, Amsterdam Reproduction and Development, Amsterdam, The Netherlands
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Cordova-Gomez A, Wong AP, Sims LB, Doncel GF, Dorflinger LJ. Potential biomarkers to predict return to fertility after discontinuation of female contraceptives-looking to the future. FRONTIERS IN REPRODUCTIVE HEALTH 2023; 5:1210083. [PMID: 37674657 PMCID: PMC10477712 DOI: 10.3389/frph.2023.1210083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Accepted: 07/18/2023] [Indexed: 09/08/2023] Open
Abstract
Nowadays there are multiple types of contraceptive methods, from reversible to permanent, for those choosing to delay pregnancy. Misconceptions about contraception and infertility are a key factor for discontinuation or the uptake of family planning methods. Regaining fertility (the ability to conceive) after contraceptive discontinuation is therefore pivotal. Technical studies to date have evaluated return to fertility by assessing pregnancy as an outcome, with variable results, or return to ovulation as a surrogate measure by assessing hormone levels (such as progesterone, LH, FSH) with or without transvaginal ultrasound. In general, relying on time to pregnancy as an indicator of return to fertility following contraceptive method discontinuation can be problematic due to variable factors independent of contraceptive effects on fertility, hormone clearance, and fertility recovery. Since the ability to conceive after contraceptive method discontinuation is a critical factor influencing product uptake, it is important to have robust biomarkers that easily and accurately predict the timing of fertility return following contraception and isolate that recovery from extrinsic and circumstantial factors. The main aim of this review is to summarize the current approaches, existing knowledge, and gaps in methods of evaluating return-to-fertility as well as to provide insights into the potential of new biomarkers to more accurately predict fertility restoration after contraceptive discontinuation. Biomarker candidates proposed in this document include those associated with folliculogenesis, cumulus cell expansion, follicular rupture and ovulation, and endometrial transport and receptivity which have been selected and scored on predefined criteria meant to evaluate their probable viability for advancement. The review also describes limitations, regulatory requirements, and a potential path to clinically testing these selected biomarkers. It is important to understand fertility restoration after contraceptive method discontinuation to provide users and health providers with accurate evidence-based information. Predictive biomarkers, if easy and low-cost, have the potential to enable robust evaluation of RTF, and provide potential users the information they desire when selecting a contraceptive method. This could lead to expanded uptake and continuation of modern contraception and inform the development of new contraceptive methods to widen user's family planning choices.
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Affiliation(s)
- Amanda Cordova-Gomez
- Office of Population and Reproductive Health, USAID/Public Health Institute, Washington, DC, United States
| | - Andrew P. Wong
- CONRAD, Department of Obstetrics and Gynecology, Eastern Virginia Medical School, Norfolk, VA, United States
| | - Lee B. Sims
- Office of Population and Reproductive Health, USAID/Public Health Institute, Washington, DC, United States
| | - Gustavo F. Doncel
- CONRAD, Department of Obstetrics and Gynecology, Eastern Virginia Medical School, Norfolk, VA, United States
| | - Laneta J. Dorflinger
- Department of Product Development and Introduction, FHI 360, Durham, NC, United States
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Sobstyl A, Chałupnik A, Mertowska P, Grywalska E. How Do Microorganisms Influence the Development of Endometriosis? Participation of Genital, Intestinal and Oral Microbiota in Metabolic Regulation and Immunopathogenesis of Endometriosis. Int J Mol Sci 2023; 24:10920. [PMID: 37446108 DOI: 10.3390/ijms241310920] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 06/23/2023] [Accepted: 06/26/2023] [Indexed: 07/15/2023] Open
Abstract
Microorganisms inhabiting the human body play an extremely key role in its proper functioning, as well as in the development of the immune system, which, by maintaining the immune balance, allows you to enjoy health. Dysbiosis of the intestinal microbiota, or in the oral cavity or reproductive tract, understood as a change in the number and diversity of all microorganisms inhabiting them, may correlate with the development of many diseases, including endometriosis, as researchers have emphasized. Endometriosis is an inflammatory, estrogen-dependent gynecological condition defined by the growth of endometrial cells outside the uterine cavity. Deregulation of immune homeostasis resulting from microbiological disorders may generate chronic inflammation, thus creating an environment conducive to the increased adhesion and angiogenesis involved in the development of endometriosis. In addition, research in recent years has implicated bacterial contamination and immune activation, reduced gastrointestinal function by cytokines, altered estrogen metabolism and signaling, and abnormal progenitor and stem cell homeostasis, in the pathogenesis of endometriosis. The aim of this review was to present the influence of intestinal, oral and genital microbiota dysbiosis in the metabolic regulation and immunopathogenesis of endometriosis.
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Affiliation(s)
- Anna Sobstyl
- Department of Experimental Immunology, Medical University of Lublin, Chodzki Street, 20-093 Lublin, Poland
| | - Aleksandra Chałupnik
- Department of Experimental Immunology, Medical University of Lublin, Chodzki Street, 20-093 Lublin, Poland
| | - Paulina Mertowska
- Department of Experimental Immunology, Medical University of Lublin, Chodzki Street, 20-093 Lublin, Poland
| | - Ewelina Grywalska
- Department of Experimental Immunology, Medical University of Lublin, Chodzki Street, 20-093 Lublin, Poland
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Colella M, Topi S, Palmirotta R, D'Agostino D, Charitos IA, Lovero R, Santacroce L. An Overview of the Microbiota of the Human Urinary Tract in Health and Disease: Current Issues and Perspectives. Life (Basel) 2023; 13:1486. [PMID: 37511861 PMCID: PMC10381901 DOI: 10.3390/life13071486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 06/09/2023] [Accepted: 06/23/2023] [Indexed: 07/30/2023] Open
Abstract
This article is intended to deepen our knowledge to date regarding the functions of the resident microbiota/microbiome in the urinary system for human health and disease. First, we sought to report the general characteristics (composition and stability) of the normal urinary system microbiota in the different anatomical sites in relation to some factors such as the effect of age, gender and diet, analyzing in detail the functions and the composition of the microbiota in the light of current knowledge. Several pieces of evidence suggest the importance of preserving the micro-ecosystem of the urinary system, and in some cases their relationship with diseases is important for maintaining human health is well understood. The female and male reproductive microbiota have mainly been studied over the past decade. In the past, the arrest was thought to have taken place in a sterile environment. Microorganisms of the microbiota form biofilms, three-dimensional structures, that differ in the reproductive organs and interact with both gametes and the embryo as well as with maternal tissues. These biofilms from the reproductive system also interact with others, such as that of the gastrointestinal tract. Reduction in its diversity intestinal microbiota can disrupt estrogen metabolism and affect the reproductive microbiota. It is therefore understood that its quantitative and qualitative identification is important for microbiota, but also the study of the structures formed by the microorganisms. A dysbiosis with local or systemic causes can lead to serious diseases. The role of probiotics in maintaining microbial population harmony (eubiosis) and preventing certain pathologies of the urinary and reproductive system was also investigated. A negative variation in the qualitative and quantitative composition of certain strains of microorganisms (dysbiosis) due to local or systemic causes can even lead to serious diseases. The role of probiotics in maintaining the healthy balance of microorganism populations (eubiosis), and thus in the prevention of certain pathologies of the urinary and reproductive system, has also been studied.
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Affiliation(s)
- Marica Colella
- Microbiology and Virology Unit, Interdisciplinary Department of Medicine, University of Bari "Aldo Moro", Piazza G. Cesare, 11, 70124 Bari, Italy
| | - Skender Topi
- Department of Clinical Disciplines, School of Technical Medical Sciences, University of Elbasan "A. Xhuvani", 3001 Elbasan, Albania
| | - Raffaele Palmirotta
- Microbiology and Virology Unit, Interdisciplinary Department of Medicine, University of Bari "Aldo Moro", Piazza G. Cesare, 11, 70124 Bari, Italy
| | - Donato D'Agostino
- Department of Clinical Disciplines, School of Technical Medical Sciences, University of Elbasan "A. Xhuvani", 3001 Elbasan, Albania
| | - Ioannis Alexandros Charitos
- Respiratory Rehabilitation Unit, Clinical Scientific Institutes Maugeri (IRCCS), Section of Bari, 70124 Bari, Italy
| | - Roberto Lovero
- AOU Policlinico Consorziale di Bari-Ospedale Giovanni XXIII, Clinical Pathology Unit, Policlinico University Hospital of Bari, 70124 Bari, Italy
| | - Luigi Santacroce
- Microbiology and Virology Unit, Interdisciplinary Department of Medicine, University of Bari "Aldo Moro", Piazza G. Cesare, 11, 70124 Bari, Italy
- Department of Clinical Disciplines, School of Technical Medical Sciences, University of Elbasan "A. Xhuvani", 3001 Elbasan, Albania
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10
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Amaral WZ, Lubach GR, Rendina DN, Phillips GJ, Lyte M, Coe CL. Significant Microbial Changes Are Evident in the Reproductive Tract of Pregnant Rhesus Monkeys at Mid-Gestation but Their Gut Microbiome Does Not Shift until Late Gestation. Microorganisms 2023; 11:1481. [PMID: 37374982 PMCID: PMC10304935 DOI: 10.3390/microorganisms11061481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 05/22/2023] [Accepted: 05/24/2023] [Indexed: 06/29/2023] Open
Abstract
Vaginal and rectal specimens were obtained from cycling, pregnant, and nursing rhesus monkeys to assess pregnancy-related changes in the commensal bacteria in their reproductive and intestinal tracts. Using 16S rRNA gene amplicon sequencing, significant differences were found only in the vagina at mid-gestation, not in the hindgut. To verify the apparent stability in gut bacterial composition at mid-gestation, the experiment was repeated with additional monkeys, and similar results were found with both 16S rRNA gene amplicon and metagenomic sequencing. A follow-up study investigated if bacterial changes in the hindgut might occur later in pregnancy. Gravid females were assessed closer to term and compared to nonpregnant females. By late pregnancy, significant differences in bacterial composition, including an increased abundance of 4 species of Lactobacillus and Bifidobacterium adolescentis, were detected, but without a shift in the overall community structure. Progesterone levels were assessed as a possible hormone mediator of bacterial change. The relative abundance of only some taxa (e.g., Bifidobacteriaceae) were specifically associated with progesterone. In summary, pregnancy changes the microbial profiles in monkeys, but the bacterial diversity in their lower reproductive tract is different from women, and the composition of their intestinal symbionts remains stable until late gestation when several Firmicutes become more prominent.
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Affiliation(s)
| | - Gabriele R. Lubach
- Harlow Center for Biological Psychology, University of Wisconsin, Madison, WI 53715, USA; (G.R.L.); (D.N.R.)
| | - Danielle N. Rendina
- Harlow Center for Biological Psychology, University of Wisconsin, Madison, WI 53715, USA; (G.R.L.); (D.N.R.)
- Health and Biosciences, International Flavors & Fragrances (IFF), Wilmington, DE 19803, USA
| | - Gregory J. Phillips
- College of Veterinary Medicine, Iowa State University, Ames, IA 50011, USA; (G.J.P.); (M.L.)
| | - Mark Lyte
- College of Veterinary Medicine, Iowa State University, Ames, IA 50011, USA; (G.J.P.); (M.L.)
| | - Christopher L. Coe
- Harlow Center for Biological Psychology, University of Wisconsin, Madison, WI 53715, USA; (G.R.L.); (D.N.R.)
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11
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Das S, Bhattacharjee MJ, Mukherjee AK, Khan MR. Recent advances in understanding of multifaceted changes in the vaginal microenvironment: implications in vaginal health and therapeutics. Crit Rev Microbiol 2023; 49:256-282. [PMID: 35312419 DOI: 10.1080/1040841x.2022.2049696] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
The vagina endures multifaceted changes from neonatal to menopausal phases due to hormonal flux, metabolite deposition, and microbial colonization. These features have important implications in women's health. Several pre-factors show dynamic characteristics according to the phases that shift the vaginal microbiota from anaerobes to aerobes which is a hallmark of healthy vaginal environment. These factors include oestrogen levels, glycogen deposition, and vaginal microstructure. In the adult phase, Lactobacillus is highly dominant and regulates pH, adherence, aggregation, immune modulation, synthesis of bacteriocins, and biosurfactants (BSs) which are antagonistic to pathogens. Maternal factors are protective by favouring the colonization of lactobacilli in the vagina in the neonatal phase, which diminishes with age. The dominance of lactobacilli and dysbiosis in the adult phase depends on intrinsic and extrinsic factors in women, which vary between ethnicities. Recent developments in probiotics used against vaginal microbiome dysbiosis have shown great promise in restoring the normal microbiota including preventing the loss of beneficial bacteria. However, further in-depth studies are warranted to ensure long-term protection by probiotics. This review highlights various aspects of the vaginal microenvironment in different phases of growth and diverse ethnicities. Furthermore, it discusses future trends for formulating more effective population-specific probiotics and implications of paraprobiotics and postbiotics as effective therapeutics.
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Affiliation(s)
- Sushmita Das
- Division of Life Science, Institute of Advanced Study in Science and Technology, Guwahati, India
| | | | - Ashis K Mukherjee
- Division of Life Science, Institute of Advanced Study in Science and Technology, Guwahati, India.,Department of Molecular Biology and Biotechnology, Tezpur University, Tezpur, India
| | - Mojibur Rohman Khan
- Division of Life Science, Institute of Advanced Study in Science and Technology, Guwahati, India
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12
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Dong YH, Fu Z, Zhang NN, Shao JY, Shen J, Yang E, Sun SY, Zhao ZM, Xiao A, Liu CJ, Li XR. Urogenital tract and rectal microbiota composition and its influence on reproductive outcomes in infertile patients. Front Microbiol 2023; 14:1051437. [PMID: 36846767 PMCID: PMC9950574 DOI: 10.3389/fmicb.2023.1051437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 01/24/2023] [Indexed: 02/12/2023] Open
Abstract
Introduction Microbiota in the human body are closely related to human diseases. Female urogenital tract and rectal microbes have been considered as important factors affecting female pregnancy, but the mechanism is unknown. Methods Cervical, vaginal, urethral, and rectal swabs were collected from 22 infertile patients and 10 controls, and follicular fluid was extracted from 22 infertile patients. The microbial composition of different sampling sites of infertile patients was examined. By comparing the microbial composition difference between infertile patients and controls and combining bioinformatics methods to analyze the potential impact of the female urogenital tract (cervical, vaginal and urethral) and rectal microbial diversity on female infertility and pregnancy outcomes. Results Lactobacillus predominated in the female urogenital tract, but its abundance decreased in infertile patients, whereas the abundance of Gardnerella and Atopobium increased. The microbial changes in the urethra had the same trend as that in the vagina. Compared with healthy controls, the cervical and rectal microbial diversity of infertile patients were significantly increased and decreased, respectively. There might be interactions between microbes in different parts of female. Geobacillus thermogeniticans was enriched in the urogenital tract and rectum of infertile patients, and has a good predictive effect on infertility. Compared with infertile patients, L. johnsonii was enriched in the vagina, urethra, and intestine of the control group. L. acidophilus in follicular fluid might be associated with Non-pregnancy. Conclusion This study found that the microbial composition of infertile patients was changed compared with that of healthy people. The translocation of Lactobacillus between the rectum and urogenital tract might play a protective barrier role. The changes of Lactobacillus and Geobacillus might be related to female infertility or pregnancy outcome. The study provided a theoretical basis for the future treatment of female infertility from the perspective of microorganisms by detecting the microbial changes associated with female infertility.
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Affiliation(s)
- Yong-Hong Dong
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Zhong Fu
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Ning-Nan Zhang
- Urology Department, The First People's Hospital of Yunnan Province, Kunming, Yunnan, China,Urology Department, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Jing-Yi Shao
- Department of Reproductive Medicine, The First People's Hospital of Yunnan Province, Kunming, Yunnan, China,Reproductive Medical Center of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Jie Shen
- Urology Department, The First People's Hospital of Yunnan Province, Kunming, Yunnan, China,Urology Department, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, China
| | - En Yang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Shi-Yi Sun
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Zhi-Min Zhao
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, Yunnan, China
| | - An Xiao
- Department of Infectious Diseases and Hepatic Disease, The First People’s Hospital of Yunnan Province, Kunming, Yunnan, China,Department of Infectious Diseases and Hepatic Disease, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Chen-Jian Liu
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Xiao-Ran Li
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, Yunnan, China,*Correspondence: Xiao-Ran Li,
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13
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Alipour R, Sereshki N, Rafiee M, Ahmadipanah V, Pashoutan Sarvar D, Rahimian K, Wilkinson D. The effect of probiotic bacteria on toll-like receptor-2 and -4 expression by spermatozoa in couples with unexplained recurrent spontaneous abortion. Biochem Biophys Rep 2022; 33:101390. [PMID: 36504703 PMCID: PMC9732116 DOI: 10.1016/j.bbrep.2022.101390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 11/05/2022] [Accepted: 11/15/2022] [Indexed: 12/12/2022] Open
Abstract
The disturbance of microbiota composition in the female reproductive tract (FRT) can result in several reproductive disorders. Spermatozoa express toll like receptors (TLRs) and may encounter many types of microbiota in the FRT, however no study has been performed regarding the interaction between spermatozoa TLRs and FRT microbiota in unexplained recurrent spontaneous abortion (URSA) and fertile couples. In this study, we investigate the interaction of vaginal lactobacillus casei probiotic as a representative of FRT microbiota with TLR2 and 4 on spermatozoa. Ten fertile couples and ten URSA couples were involved in this study. Untreated and lactobacillus casei probiotic treated purified spermatozoa were evaluated for TLR2 and 4 expression by flow cytometry. Vaginal lactobacillus casei probiotic treatment of spermatozoa led to increased expression of TLR4 and decreased expression of TLR2 on spermatozoa in both URSA and fertile couples. Vaginal lactobacillus casei probiotic led to an increase in TLR4 expression and a decrease in TLR2 expression on spermatozoa in fertile and URSA groups. However, the disturbed expression of TLR2 and 4 was not completely correct, and further studies with other types of vaginal lactobacilli are needed. In contrast to our expectation, vaginal lactobacillus casei probiotic could not improve the disturbed expression of TLR2 and TLR4 in the RSA group. This could be due to small sample size and the use of one type of lactobacillus. Therefore, further study needs to be performed with other types of lactobacilli to determine the effect of microbiota and probiotics on spermatozoa function such as motility, acrosome reaction, sperm capacitation, sperm and egg fusion and spermatozoa motility and apoptosis and etc. Nevertheless, this study can provide a first step to investigate the effectiveness of vaginal microbiota on spermatozoa, and consequently design new strategies for RSA couples.
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Affiliation(s)
- Razieh Alipour
- Department of Immunology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Nasrin Sereshki
- Department of Immunology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran,Corresponding author. Department of Immunology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran.
| | - Mitra Rafiee
- Department of Immunology, Cellular and Molecular Research Center, Birjand University of Medical Sciences, Birjand, Iran
| | | | | | - Kourosh Rahimian
- Medical Laboratory Sciences, Pasteur Clinical Laboratory, Sanandaj, Iran
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14
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Pickett AT, Cooke RF, Mackey SJ, Brandão AP, Colombo EA, Oliveira Filho RV, de Melo GD, Pohler KG, Poole RK. Shifts in bacterial communities in the rumen, vagina, and uterus of beef heifers receiving different levels of concentrate. J Anim Sci 2022; 100:skac338. [PMID: 36239685 PMCID: PMC9733499 DOI: 10.1093/jas/skac338] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 10/12/2022] [Indexed: 12/15/2022] Open
Abstract
This experiment investigated the effects of diet composition on rumen, vaginal, and uterine microbiota of beef heifers. Fifteen rumen-cannulated, pubertal Angus-influenced heifers were used in a replicated 3 × 3 Latin square design (28-d periods and 21-d washout intervals). Dietary treatments included diets based on (as-fed) 100% grass hay (HF), 60% grass hay + 40% corn-based concentrate (INT), or 25% grass hay + 75% corn-based concentrate (HG). Treatments were offered individually to heifers once daily at 2% body weight. Rumen, vaginal, and uterine samples were collected on days 0 and 28 of each period. Data were analyzed using orthogonal contrasts (linear and quadratic), using results from day 0 as independent covariates and heifer as the experimental unit. Ruminal pH on day 28 decreased linearly (P < 0.01) as concentrate inclusion increased. Uterine and vaginal pH on day 28 were not affected by treatments (P ≥ 0.35). Within the rumen samples, Bacteriodetes was the most abundant phylum and its relative abundance linearly decreased (P ≤ 0.01) with the inclusion of concentrate. Prevotella was the most abundant genus within the rumen but was not affected by treatments (P ≥ 0.44). Genera with relative abundance ≥1% (average across treatments) in the rumen that were impacted by treatments (P ≤ 0.01) included Bacteroides, Pedobacter, Dysgonomonas, Caloramator, and Ruminococcus. Firmicutes was the most abundant phylum in the vagina and uterus, but it was unaffected by treatments (P ≥ 0.16). Prevotella was the most abundant genus in the vagina, and its relative abundance increased (P < 0.01) with the inclusion of concentrate. Other genera with relative abundance ≥1% that were significantly affected (P ≤ 0.05) by treatments were Clostridium, Pedobacter, Roseburia, Oscillospira, Faecalibacterium, Caloramator, Paludibacter, Rhodothermus, and Porphyromonas. In uterine samples, Prevotella was the most abundant genus but was unaffected by treatments (P ≥ 0.29). Genera with relative abundance ≥1% in the uterus that were significantly affected (P < 0.01) by treatments were Caloramator, Paludibacter, and Thalassospira. Collectively, inclusion of concentrate in the diet altered the bacterial composition within the rumen as well as shifting bacterial populations within the vagina and uterus. Research is warranted to further understand the impacts of these diet-induced microbiota changes on reproductive function and performance of beef heifers.
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Affiliation(s)
- Autumn T Pickett
- Department of Animal Science, Texas A&M University, College Station, TX 77843, USA
| | - Reinaldo F Cooke
- Department of Animal Science, Texas A&M University, College Station, TX 77843, USA
| | - Shea J Mackey
- Department of Animal Science, Texas A&M University, College Station, TX 77843, USA
| | - Alice P Brandão
- Department of Animal Science, Texas A&M University, College Station, TX 77843, USA
| | - Eduardo A Colombo
- Department of Animal Science, Texas A&M University, College Station, TX 77843, USA
| | | | | | - Ky G Pohler
- Department of Animal Science, Texas A&M University, College Station, TX 77843, USA
| | - Rebecca K Poole
- Department of Animal Science, Texas A&M University, College Station, TX 77843, USA
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15
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Kyrgiou M, Moscicki AB. Vaginal microbiome and cervical cancer. Semin Cancer Biol 2022; 86:189-198. [PMID: 35276341 DOI: 10.1016/j.semcancer.2022.03.005] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 02/12/2022] [Accepted: 03/05/2022] [Indexed: 02/08/2023]
Abstract
The female reproductive tract, similar to other mucosal sites, harbors a specific microbiome commonly dominated by Lactobacillus species (spp.), which has an essential role in maintaining health and homeostasis. Increasing evidence shows that genital tract dysbiosis and/or specific bacteria and cytokines might have an active role in the development and/or progression of HPV infection and cervical intra-epithelial neoplasia (CIN) and as a result cervical cancer. Cross-sectional and longitudinal studies reported that Lactobacillus spp. depletion increases with severity of CIN and that this may negatively affect disease regression rates. It is plausible that Lactobacillus deplete microbiome composition may lead to a pro-inflammatory environment that can increase malignant cell proliferation and HPV E6 and E7 oncogene expression. Future longitudinal cohorts and mechanistic experiments on HPV transfected cells models will further permit exploration of the impact of Lactobacillus spp. on HPV infection.
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Affiliation(s)
- Maria Kyrgiou
- Institute of Reproductive and Developmental Biology, Department of Metabolism, Digestion and Reproduction - Surgery and Cancer, Imperial College London, W12 0NN, UK; West London Gynaecological Cancer Centre, Imperial College Healthcare NHS Trust, London W12 0HS, UK.
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16
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Chadchan SB, Singh V, Kommagani R. Female reproductive dysfunctions and the gut microbiota. J Mol Endocrinol 2022; 69:R81-R94. [PMID: 35900833 PMCID: PMC10031513 DOI: 10.1530/jme-21-0238] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 07/18/2022] [Indexed: 11/08/2022]
Abstract
The gut microbiome is considered an endocrine organ that can influence distant organs and associated biological pathways. Recent advances suggest that gut microbial homeostasis is essential for reproductive health and that perturbations in the gut microbiota can lead to reproductive pathologies. This review provides an updated overview of the relationship between the gut microbiome and female reproductive diseases. Specifically, we highlight the most recent findings on the gut microbiome in gynecological pathologies including polycystic ovarian syndrome, endometriosis, and endometrial cancer. Most studies revealed associations between altered gut microbial compositions and these reproductive diseases, though few have suggested cause-effect relationships. Future studies should focus on determining the molecular mechanisms underlying associations between gut microbiota and reproductive diseases. Understanding this bidirectional relationship could lead to the development of novel and effective strategies to prevent, diagnose, and treat female reproductive organ-related diseases.
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Affiliation(s)
- Sangappa B. Chadchan
- Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX 77030, USA
- Center for Reproductive Health Sciences, Department of Obstetrics and Gynecology, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Vertika Singh
- Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Ramakrishna Kommagani
- Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX 77030, USA
- Department of Virology and Microbiology, Baylor College of Medicine, Houston, TX 77030, USA
- Center for Reproductive Health Sciences, Department of Obstetrics and Gynecology, Washington University School of Medicine, St. Louis, MO 63110, USA
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17
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Yang Q, Ciebiera M, Bariani MV, Ali M, Elkafas H, Boyer TG, Al-Hendy A. Comprehensive Review of Uterine Fibroids: Developmental Origin, Pathogenesis, and Treatment. Endocr Rev 2022; 43:678-719. [PMID: 34741454 PMCID: PMC9277653 DOI: 10.1210/endrev/bnab039] [Citation(s) in RCA: 89] [Impact Index Per Article: 44.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Indexed: 11/24/2022]
Abstract
Uterine fibroids are benign monoclonal neoplasms of the myometrium, representing the most common tumors in women worldwide. To date, no long-term or noninvasive treatment option exists for hormone-dependent uterine fibroids, due to the limited knowledge about the molecular mechanisms underlying the initiation and development of uterine fibroids. This paper comprehensively summarizes the recent research advances on uterine fibroids, focusing on risk factors, development origin, pathogenetic mechanisms, and treatment options. Additionally, we describe the current treatment interventions for uterine fibroids. Finally, future perspectives on uterine fibroids studies are summarized. Deeper mechanistic insights into tumor etiology and the complexity of uterine fibroids can contribute to the progress of newer targeted therapies.
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Affiliation(s)
- Qiwei Yang
- Qiwei Yang, Ph.D. Department of Obstetrics and Gynecology, University of Chicago, 5841 S. Maryland Ave, M167, Billings, Chicago, IL 60637, USA.
| | - Michal Ciebiera
- Second Department of Obstetrics and Gynecology, Center of Postgraduate Medical Education, ul. Cegłowska 80, 01-809, Warsaw, Poland
| | | | - Mohamed Ali
- Clinical Pharmacy Department, Faculty of Pharmacy, Ain Shams University, Cairo 11566, Egypt
| | - Hoda Elkafas
- Department of Anesthesiology, University of Illinois at Chicago, Chicago, IL 60612, USA
- Department of Pharmacology and Toxicology, Egyptian Drug Authority, formerly National Organization for Drug Control and Research, Cairo 35521, Egypt
| | - Thomas G Boyer
- Department of Molecular Medicine, Institute of Biotechnology, University of Texas Health Science Center at San Antonio, San Antonio, TX, 78229-3900, USA
| | - Ayman Al-Hendy
- Correspondence: Ayman Al-Hendy, MD, Ph.D. Department of Obstetrics and Gynecology, University of Chicago, 5841 S. Maryland Ave, N112, Peck Pavilion, Chicago, IL 60637. USA.
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18
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Kim MJ, Lee S, Kwon MY, Kim M. Clinical Significance of Composition and Functional Diversity of the Vaginal Microbiome in Recurrent Vaginitis. Front Microbiol 2022; 13:851670. [PMID: 35250962 PMCID: PMC8895140 DOI: 10.3389/fmicb.2022.851670] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Accepted: 01/31/2022] [Indexed: 11/13/2022] Open
Abstract
ObjectiveThe vaginal microbiome protects the female genital tract from various diseases, such as vaginitis, a vaginal inflammation characterized by abnormal discharge, itching, and pain. To evaluate the clinical relationship between the vaginal microbiome and the pathophysiology of recurrent vaginitis (RV), we investigated the microbiome taxonomic profile (MTP) in the vaginal samples of Korean female patients with RV.MethodsForty women of reproductive age diagnosed with RV were enrolled. The vaginal MTP of patients was analyzed using 16S ribosomal RNA gene sequencing, and the results were compared with that of healthy women (n = 100). Further, the association of the vaginal community state type (CST) with the clinical characteristics was analyzed.ResultsThe species abundance of MTP was significantly lower in patients with RV than in healthy women (p < 0.05), whereas species evenness and diversity were significantly higher in patients with RV than in healthy individuals (p < 0.05). The proportion of the most common vaginal Lactobacillus spp. was significantly lower in the MTP of patients with RV than healthy women (p < 0.01). The beta diversity distance was also significantly different between patients with RV patients and healthy individuals (p = 0.001). Based on the CST, the MTP of 40 RV samples was categorized as follows: 21 (52.5%) for CST IV, 8 (20.0%) for CST III, 5 (12.5%) for CST I, 2 (5.0%) for CST II, 1 for (2.5%) for CST V, and 3 (7.5%) for mixed CST. Patients with underlying uterine diseases (uterine leiomyoma, adenomyosis, and endometrial polyps; n = 17) showed higher species richness and diversity than those without (n = 23; p < 0.05).ConclusionChanges in the species abundance and microbial diversity in the vagina were strongly associated with RV. A low proportion of Lactobacillus spp. was found in patients with RV than in healthy women. The abundance and diversity of bacterial taxa were significantly higher in patients with underlying gynecologic disease than those without. Our study offers an insight into the nature of the vaginal microbiome and proposes that surveying the vaginal microbiome is valuable for detecting and treating gynecologic diseases in the future.
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Affiliation(s)
- Min Jeong Kim
- Department of Obstetrics and Gynecology, Bucheon St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Seungok Lee
- Department of Laboratory Medicine, Incheon St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
- *Correspondence: Seungok Lee,
| | - Mi Yeon Kwon
- Department of Clinical Medicine Research, Bucheon St. Mary’s Hospital, The Catholic University of Korea, Seoul, South Korea
| | - Myungshin Kim
- Department of Laboratory Medicine, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
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19
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Mandal S, Bandyopadhyay S, Tyagi K, Roy A. Human microbial dysbiosis as driver of gynecological malignancies. Biochimie 2022; 197:86-95. [PMID: 35176353 DOI: 10.1016/j.biochi.2022.02.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 01/25/2022] [Accepted: 02/11/2022] [Indexed: 11/12/2022]
Abstract
Gynecological cancers that affect female reproductive tract, remain at the top of the global cancer burden list with high relapse rate and mortality. Notwithstanding development of several novel therapeutic interventions including poly-ADP-ribose polymerase inhibitors, this family of malignancies remain deadly. The human microbiome project demonstrated that dysbiosis of health resident microflora is associated with several pathologies including malignancies of the female reproductive tract and detailed characterization of species variation and host-microbe interaction could provide clues for identification of early diagnostic biomarker, preventive and therapeutic interventions. Emerging evidence suggests that several microbial signatures are significantly associated with gynecological cancers. An increased population of Proteobacteria and Firmicutes followed by significantly reduced Lactobacilli are associated with lethal epithelial ovarian cancer. Similarly, a constant association of elevated level of Atopobium vaginae, Porphyromonas somerae, Micrococci and Gardnerella vaginalis are observed in endometrial and cervical cancers. Moreover, human papilloma virus infection significantly augments colonization of pathogenic microbes including Sneathia sanguinegens, Anaerococcus tetradius, and Peptostreptococcus anaerobius and drives carcinoma of the cervix. Interestingly, microbial dysbiosis in female reproductive tract modulates expression of several microbial and immune-responsive genes such as TLR-4, TLR-5, TLR-6 and NOD-1. Therefore, stringent investigation into the microbial dysbiosis and its underlying mechanism could provide valuable cues for identification of early diagnostic biomarker, preventive and therapeutic interventions against rogue gynecological malignancies.
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Affiliation(s)
- Supratim Mandal
- Department of Microbiology, University of Kalyani, Kalyani, Nadia, West Bengal, 741235, India
| | - Shrabasti Bandyopadhyay
- Department of Microbiology, University of Kalyani, Kalyani, Nadia, West Bengal, 741235, India
| | - Komal Tyagi
- Amity Institute of Molecular Medicine & Stem Cell Research, Amity University, Sector 125, Noida, Uttar Pradesh, 201303, India
| | - Adhiraj Roy
- Amity Institute of Molecular Medicine & Stem Cell Research, Amity University, Sector 125, Noida, Uttar Pradesh, 201303, India.
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20
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Leclaire S, Pineaux M, Blanchard P, White J, Hatch SA. Microbiota composition and diversity of multiple body sites vary according to reproductive performance in a seabird. Mol Ecol 2022; 32:2115-2133. [PMID: 35152516 DOI: 10.1111/mec.16398] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 01/03/2022] [Accepted: 02/07/2022] [Indexed: 11/30/2022]
Abstract
The microbiota is suggested to be a fundamental contributor to host reproduction and survival, but associations between microbiota and fitness are rare, especially for wild animals. Here, we tested the association between microbiota and two proxies of breeding performance in multiple body sites of the black-legged kittiwake, a seabird species. First we found that, in females, nonbreeders (i.e., birds that did not lay eggs) hosted different microbiota composition to that of breeders in neck and flank feathers, in the choanae, in the outer-bill and in the cloacae, but not in preen feathers and tracheae. These differences in microbiota might reflect variations in age or individual quality between breeders and nonbreeders. Second, we found that better female breeders (i.e., with higher body condition, earlier laying date, heavier eggs, larger clutch, and higher hatching success) had lower abundance of several Corynebacteriaceae in cloaca than poorer female breeders, suggesting that these bacteria might be pathogenic. Third, in females, better breeders had different microbiota composition and lower microbiota diversity in feathers, especially in preen feathers. They had also reduced dispersion in microbiota composition across body sites. These results might suggest that good breeding females are able to control their feather microbiota-potentially through preen secretions-more tightly than poor breeding females. We did not find strong evidence for an association between reproductive outcome and microbiota in males. Our results are consistent with the hypothesis that natural variation in the microbiota is associated with differences in host fitness in wild animals, but the causal relationships remain to be investigated.
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Affiliation(s)
- Sarah Leclaire
- Laboratoire Evolution et Diversité Biologique (EDB) UMR5174 Université Toulouse 3 Paul Sabatier CNRS, IRD Toulouse France
| | - Maxime Pineaux
- Laboratoire Evolution et Diversité Biologique (EDB) UMR5174 Université Toulouse 3 Paul Sabatier CNRS, IRD Toulouse France
| | - Pierrick Blanchard
- Laboratoire Evolution et Diversité Biologique (EDB) UMR5174 Université Toulouse 3 Paul Sabatier CNRS, IRD Toulouse France
| | - Joël White
- Laboratoire Evolution et Diversité Biologique (EDB) UMR5174 Université Toulouse 3 Paul Sabatier CNRS, IRD Toulouse France
- ENSFEA Castanet‐Tolosan France
| | - Scott A Hatch
- Institute for Seabird Research and Conservation Anchorage AK 99516 USA
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21
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Abou Chacra L, Fenollar F, Diop K. Bacterial Vaginosis: What Do We Currently Know? Front Cell Infect Microbiol 2022; 11:672429. [PMID: 35118003 PMCID: PMC8805710 DOI: 10.3389/fcimb.2021.672429] [Citation(s) in RCA: 50] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Accepted: 12/17/2021] [Indexed: 12/26/2022] Open
Abstract
The vaginal microbiome is a well-defined compartment of the human microbiome. It has unique conditions, characterized by the dominance of one bacterial species, the Lactobacilli. This microbiota manifests itself by a low degree of diversity and by a strong dynamic of change in its composition under the influence of various exogenous and endogenous factors. The increase in diversity may paradoxically be associated with dysbiosis, such as bacterial vaginosis (BV). BV is the result of a disturbance in the vaginal ecosystem; i.e., a sudden replacement of Lactobacilli by anaerobic bacteria such as Gardnerella vaginalis, Atopobium vaginae, Ureaplasma urealyticum, Mycoplasma hominis, and others. It is the most common cause of vaginal discharge in women of childbearing age, approximately 30% of all causes. The etiology of this dysbiosis remains unknown, but its health consequences are significant, including obstetrical complications, increased risk of sexually transmitted infections and urogenital infections. Its diagnosis is based on Amsel’s clinical criteria and/or a gram stain based on the Nugent score. While both of these methods have been widely applied worldwide for approximately three decades, Nugent score are still considered the “gold standard” of BV diagnostic tools. Given the limitations of these tools, methods based on molecular biology have been developed as alternative rational strategies for the diagnosis of BV. The treatment of BV aims at restoring the balance of the vaginal flora to stop the proliferation of harmful microorganisms. Prescription of antibiotics such as metronidazole, clindamycin, etc. is recommended. Faced with the considerable uncertainty about the cause of BV, the high rate of recurrence, the unacceptable treatment options, and clinical management which is often insensitive and inconsistent, research on this topic is intensifying. Knowledge of its composition and its associated variations represents the key element in improving the therapeutic management of patients with the most suitable treatments possible.
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Affiliation(s)
- Linda Abou Chacra
- Aix Marseille Univ, IRD, AP-HM, SSA, VITROME, Marseille, France
- IHU-Méditerranée Infection, Marseille, France
| | - Florence Fenollar
- Aix Marseille Univ, IRD, AP-HM, SSA, VITROME, Marseille, France
- IHU-Méditerranée Infection, Marseille, France
| | - Khoudia Diop
- Aix Marseille Univ, IRD, AP-HM, SSA, VITROME, Marseille, France
- IHU-Méditerranée Infection, Marseille, France
- *Correspondence: Khoudia Diop,
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22
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Abstract
As the gut microbiota exerts various effects on the intestinal milieu which influences distant organs and pathways, it is considered to be a full-fledged endocrine organ. The microbiota plays a major role in the reproductive endocrine system throughout a woman's lifetime by interacting with estrogen, androgens, insulin, and other hormones. Imbalance of the gut microbiota composition can lead to several diseases and conditions, such as pregnancy complications, adverse pregnancy outcomes, polycystic ovary syndrome (PCOS), endometriosis, and cancer; however, research on the mechanisms is limited. More effort should be concentrated on exploring the potential causes and underlying the mechanisms of microbiota-hormone-mediated disease, and providing novel therapeutic and preventive strategies.As the gut microbiota exerts various effects on the intestinal milieu which influences distant organs and pathways, it is considered to be a full-fledged endocrine organ. The microbiota plays a major role in the reproductive endocrine system throughout a woman's lifetime by interacting with estrogen, androgens, insulin, and other hormones. Imbalance of the gut microbiota composition can lead to several diseases and conditions, such as pregnancy complications, adverse pregnancy outcomes, polycystic ovary syndrome (PCOS), endometriosis, and cancer; however, research on the mechanisms is limited. More effort should be concentrated on exploring the potential causes and underlying the mechanisms of microbiota-hormone-mediated disease, and providing novel therapeutic and preventive strategies.
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Affiliation(s)
- Xinyu Qi
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China,Key Laboratory of Assisted Reproduction (Peking University), Ministry of Education, Beijing, China
| | - Chuyu Yun
- Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, School of Basic Medical Sciences, Peking University, Beijing, China
| | - Yanli Pang
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China,Key Laboratory of Assisted Reproduction (Peking University), Ministry of Education, Beijing, China,Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology (Peking University Third Hospital), Beijing, China,CONTACT Yanli Pang M.D.,Ph.D Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China
| | - Jie Qiao
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China,Key Laboratory of Assisted Reproduction (Peking University), Ministry of Education, Beijing, China,Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology (Peking University Third Hospital), Beijing, China,National Clinical Research Center for Obstetrics and Gynecology (Peking University Third Hospital), Beijing, China,Research Units of Comprehensive Diagnosis and Treatment of Oocyte Maturation Arrest, Chinese Academy of Medical Sciences, Beijing, China,Jie Qiao M.D., Ph.D Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China
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23
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Krog MC, Hugerth LW, Fransson E, Bashir Z, Nyboe Andersen A, Edfeldt G, Engstrand L, Schuppe-Koistinen I, Nielsen HS. OUP accepted manuscript. Hum Reprod 2022; 37:1525-1543. [PMID: 35553675 PMCID: PMC9247429 DOI: 10.1093/humrep/deac094] [Citation(s) in RCA: 39] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 04/07/2022] [Indexed: 11/13/2022] Open
Affiliation(s)
| | | | - Emma Fransson
- Centre for Translational Microbiome Research, Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, Stockholm, Sweden
| | - Zahra Bashir
- The Recurrent Pregnancy Loss Unit, The Capital Region, Rigshospitalet and Hvidovre Hospital, Copenhagen University Hospitals, Copenhagen, Denmark
- Department of Obstetrics and Gynecology, University Hospital Zealand, Slagelse Hospital, Slagelse, Denmark
| | - Anders Nyboe Andersen
- The Fertility Department Section 4071, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Gabriella Edfeldt
- Centre for Translational Microbiome Research, Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, Stockholm, Sweden
| | - Lars Engstrand
- Centre for Translational Microbiome Research, Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, Stockholm, Sweden
- Science for Life Laboratory, Stockholm, Sweden
| | | | - Henriette Svarre Nielsen
- The Recurrent Pregnancy Loss Unit, The Capital Region, Rigshospitalet and Hvidovre Hospital, Copenhagen University Hospitals, Copenhagen, Denmark
- Department of Clinical Medicine, Copenhagen University, Copenhagen, Denmark
- Department of Obstetrics and Gynecology, Copenhagen University Hospital, Hvidovre Hospital, Copenhagen, Denmark
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24
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Zhai Q, Zhang W, Zhang Z, Fu Y, Li Y, Wang X, Li L, Meng Y. Characteristics of the Cervicovaginal Microenvironment in Childbearing-Age Women with Different Degrees of Cervical Lesions and HR-HPV Positivity. Pol J Microbiol 2022; 70:489-500. [PMID: 34970317 PMCID: PMC8702608 DOI: 10.33073/pjm-2021-046] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 11/10/2021] [Indexed: 12/15/2022] Open
Abstract
Persistent infection with high-risk human papillomavirus (HR-HPV) is the most important determinate in the development of cervical cancer, and cervical microecology can modulate cervical viral infection. However, few studies have been conducted on the microecological analysis of cervical diseases using strict physiological factors. This study investigated the characteristics and dynamics of cervical microecology in childbearing-age Chinese women with different degrees of HR-HPV-positive cervical lesions. A total of 168 subjects were selected according to the selection criteria, including healthy HPV-negative individuals (n = 29), HR-HPV-infected individuals (n = 29), low-grade squamous intraepithelial lesion individuals (LSIL, n = 32), high-grade squamous intraepithelial lesion individuals (HSIL, n = 40), and cervical cancer individuals (n = 38). We sampled cervical secretions from each subject and performed comparative analysis using the 16S rRNA sequencing method. Comparison analysis showed that Lactobacillus and Ignatzschineria were the dominant genera in the healthy group, while Gardnerella and Prevotella were more enriched in the disease groups. Based on the taxa composition, we roughly divided the development of cervical cancer into two phases: phase I was from healthy status to HR-HPV infection and LSIL; phase II was from LSIL to HSIL and cervical cancer. Different interactions among different genera were observed in different groups. Prevotella inhibited the abundance of Lactobacillus in the healthy group, while Prevotella inhabited the abundance of Gardnerella in the other groups. In the HR-HPV infection group, Ignatzschineria and Enterococcus showed a positive interaction but dissociated with the increase in cervical lesions, which might eventually lead to a continuous decrease in the abundances of Lactobacillus and Ignatzschineria.
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Affiliation(s)
- Qingzhi Zhai
- Chinese PLA Medical School, Beijing, China.,Department of Obstetrics and Gynecology, First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Weiyi Zhang
- Department of Obstetrics and Gynecology, First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Zhe Zhang
- Department of Obstetrics and Gynecology, First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Yurong Fu
- Department of Obstetrics and Gynecology, First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Yang Li
- Department of Obstetrics and Gynecology, First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Xueqi Wang
- Department of Obstetrics and Gynecology, First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Li'an Li
- Department of Obstetrics and Gynecology, First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Yuanguang Meng
- Department of Obstetrics and Gynecology, First Medical Center, Chinese PLA General Hospital, Beijing, China
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25
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An Insight into Vaginal Microbiome Techniques. Life (Basel) 2021; 11:life11111229. [PMID: 34833105 PMCID: PMC8623751 DOI: 10.3390/life11111229] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 11/08/2021] [Accepted: 11/10/2021] [Indexed: 12/16/2022] Open
Abstract
There is a unique microbial community in the female lower genital tract known as the vaginal microbiota, which varies in composition and density and provides significant benefits during pregnancy, reproductive cyclicity, healthy newborn delivery, protection from preterm birth, infections such as UTIs, bacterial vaginosis, and so on, and improves the efficacy of treatments for vaginal cancers. Methods: It is necessary to know how the vaginal microbiome is composed in order to make an accurate diagnosis of the diseases listed above. A microbiome’s members are difficult to classify, and the way microbial communities function and influence host–pathogen interactions are difficult to understand. More and more metagenomic studies are able to unravel such complexities due to advances in high-throughput sequencing and bioinformatics. When it comes to vaginal microbiota research, we’ll be looking at the use of modern techniques and strategies that can be used to investigate variations in vaginal microbiota in order to detect diseases earlier, better treat vaginal disorders, and boost women’s health. Discussion: The discussed techniques and strategies may improve the treatment of vaginal disorders and may be beneficial for women’s overall health.
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26
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Punzón-Jiménez P, Labarta E. The impact of the female genital tract microbiome in women health and reproduction: a review. J Assist Reprod Genet 2021; 38:2519-2541. [PMID: 34110573 PMCID: PMC8581090 DOI: 10.1007/s10815-021-02247-5] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Accepted: 05/25/2021] [Indexed: 12/17/2022] Open
Abstract
PURPOSE The aim of this review is to gather the available research focusing on female genital tract (FGT) microbiome. Research question focuses in decipher which is the role of FGT microbiota in eubiosis, assisted reproduction techniques (ARTs), and gynaecological disorders, and how microbiome could be utilised to improve reproduction outcomes and to treat fertility issues. METHODS PubMed was searched for articles in English from January 2004 to April 2021 for "genital tract microbiota and reproduction", "endometrial microbiome", "microbiome and reproduction" and "microbiota and infertility". Manual search of the references within the resulting articles was performed. RESULTS Current knowledge confirms predominance of Lactobacillus species, both in vagina and endometrium, whereas higher variability of species is both found in fallopian tubes and ovaries. Microbial signature linked to different disorders such endometriosis, bacterial vaginosis, and gynaecological cancers are described. Broadly, low variability of species and Lactobacillus abundance within the FGT is associated with better reproductive and ART outcomes. CONCLUSION Further research regarding FGT microbiome configuration needs to be done in order to establish a more precise link between microbiota and eubiosis or dysbiosis. Detection of bacterial species related with poor reproductive outcomes, infertility or gynaecological diseases could shape new tools for their diagnosis and treatment, as well as resources to assess the pregnancy prognosis based on endometrial microbiota. Data available suggest future research protocols should be standardised, and it needs to include the interplay among microbiome, virome and mycobiome, and the effect of antibiotics or probiotics on the microbiome shifts.
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Affiliation(s)
- Paula Punzón-Jiménez
- IVI Global Education, Edificio Bipolo, Hospital Universitario La Fe, Fernando Abril Martorell 106, Torre A, Planta 1ª, 46026, Valencia, Spain.
- Department of Pediatrics, Obstetrics and Gynaecology, Universitat de València, Av. Blasco Ibáñez, 15, 46010, Valencia, Spain.
| | - Elena Labarta
- IVIRMA Valencia, Plaza de la Policía Local, 3, 46015, Valencia, Spain
- IVI Foundation - IIS La Fe, Fernando Abril Martorell 106, Torre A, Planta 1ª, 46026, Valencia, Spain
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27
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Kiefer ZE, Koester LR, Studer JM, Chipman AL, Mainquist-Whigham C, Keating AF, Schmitz-Esser S, Ross JW. Vaginal microbiota differences associated with pelvic organ prolapse risk during late gestation in commercial sows. Biol Reprod 2021; 105:1545-1561. [PMID: 34542158 PMCID: PMC8689292 DOI: 10.1093/biolre/ioab178] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 08/13/2021] [Accepted: 09/14/2021] [Indexed: 12/19/2022] Open
Abstract
During the last decade, sow mortality due to pelvic organ prolapse (POP) has increased. To better understand the biology associated with POP, sows were phenotypically assessed and assigned a perineal score (PS) based on presumed POP risk and categorized as PS1 (low), PS2 (moderate), or PS3 (high). The study objective was to identify changes in sow vaginal microbiota that may be associated with POP. The hypothesis is that vaginal microbiota differs between sows with variable risk for POP, and changes in microbiota during late gestation exist between sows with differing risk. Of the 2864 sows scored during gestation week 15, 1.0, 2.7, and 23.4% of PS1, PS2, and PS3 sows, respectively, subsequently experienced POP. Vaginal swabs subjected to 16S rRNA gene sequencing revealed differences in community composition (Bray–Curtis; P < 0.05) and individual operational taxonomic unit (OTU) comparisons between vaginal microbiota of PS1 and PS3 sows at gestation week 15. Further, differences (P < 0.05) in community composition and OTUs (Q < 0.05) were observed in PS3 sows that either did or did not subsequently experience POP. Differences in community structure (alpha diversity measurements; P < 0.05), composition (P < 0.05), and OTUs (Q < 0.05) were observed in gestation week 12 sows scored PS1 compared to week 15 sows scored PS1 or PS3, suggesting that sow vaginal microbiota shifts during late gestation differently as POP risk changes. Collectively, these data demonstrate that sows with greater POP risk have unique vaginal microflora, for which a better understanding could aid in the development of mitigation strategies.
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Affiliation(s)
- Zoë E Kiefer
- Department of Animal Science, Iowa State University, Ames, Iowa, United States
| | - Lucas R Koester
- Department of Veterinary Microbiology and Preventive Medicine, Iowa State University, Ames, Iowa, United States.,Interdepartmental Microbiology Graduate Program, Iowa State University, Ames, Iowa, United States
| | - Jamie M Studer
- Department of Animal Science, Iowa State University, Ames, Iowa, United States
| | | | | | - Aileen F Keating
- Department of Animal Science, Iowa State University, Ames, Iowa, United States
| | - Stephan Schmitz-Esser
- Department of Animal Science, Iowa State University, Ames, Iowa, United States.,Interdepartmental Microbiology Graduate Program, Iowa State University, Ames, Iowa, United States
| | - Jason W Ross
- Department of Animal Science, Iowa State University, Ames, Iowa, United States.,Iowa Pork Industry Center, Ames, Iowa, United States
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28
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Bohbot JM, Zhioua F. [The benefit of Saccharomyces boulardii CNCM I-745 in the management of vulvovaginal infections]. GYNECOLOGIE, OBSTETRIQUE, FERTILITE & SENOLOGIE 2021; 49:716-723. [PMID: 33933670 DOI: 10.1016/j.gofs.2021.04.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2020] [Indexed: 06/12/2023]
Affiliation(s)
- J-M Bohbot
- Institut Fournier, 25, boulevard Saint-Jacques, 75014 Paris, France.
| | - F Zhioua
- Unité de procréation médicalement assistée, Département de gynécologie et obstétrique, Hôpital Aziza Othmana, Tunis, Tunisie
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29
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Ardizzoni A, Wheeler RT, Pericolini E. It Takes Two to Tango: How a Dysregulation of the Innate Immunity, Coupled With Candida Virulence, Triggers VVC Onset. Front Microbiol 2021; 12:692491. [PMID: 34163460 PMCID: PMC8215348 DOI: 10.3389/fmicb.2021.692491] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 05/12/2021] [Indexed: 12/11/2022] Open
Abstract
Vulvovaginal candidiasis (VVC) is a symptomatic inflammation of the vagina mainly caused by C. albicans. Other species, such as C. parapsilosis, C. glabrata, C. tropicalis, and C. krusei, are mainly associated to the recurrent form of the disease (RVVC), although with a lower frequency. In its yeast form, C. albicans is tolerated by the vaginal epithelium, but switching to the invasive hyphal form, co-regulated with the expression of genes encoding virulence factors such as secreted aspartyl proteases (Sap) and candidalysin, allows for tissue damage. Vaginal epithelial cells play an important role by impairing C. albicans tissue invasion through several mechanisms such as epithelial shedding, secretion of mucin and strong interepithelial cell connections. However, morphotype switching coupled to increasing of the fungal burden can overcome the tolerance threshold and trigger an intense inflammatory response. Pathological inflammation is believed to be facilitated by an altered vaginal microbiome, i.e., Lactobacillus dysbiosis. Notwithstanding the damage caused by the fungus itself, the host response to the fungus plays an important role in the onset of VVC, exacerbating fungal-mediated damage. This response can be triggered by host PRR-fungal PAMP interaction and other more complex mechanisms (i.e., Sap-mediated NLRP3 activation and candidalysin), ultimately leading to strong neutrophil recruitment. However, recruited neutrophils appear to be ineffective at reducing fungal burden and invasion; therefore, they seem to contribute more to the symptoms associated with vaginitis than to protection against the disease. Recently, two aspects of the vulvovaginal environment have been found to associate with VVC and induce neutrophil anergy in vitro: perinuclear anti-neutrophil cytoplasmic antibodies (pANCA) and heparan sulfate. Interestingly, CAGTA antibodies have also been found with higher frequency in VVC as compared to asymptomatic colonized women. This review highlights and discusses recent advances on understanding the VVC pathogenesis mechanisms as well as the role of host defenses during the disease.
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Affiliation(s)
- Andrea Ardizzoni
- Department of Surgical, Medical, Dental and Morphological Sciences with Interest in Transplant, Oncological and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy
| | - Robert T Wheeler
- Department of Molecular and Biomedical Sciences, University of Maine, Orono, ME, United States.,Graduate School of Biomedical Sciences and Engineering, University of Maine, Orono, ME, United States
| | - Eva Pericolini
- Department of Surgical, Medical, Dental and Morphological Sciences with Interest in Transplant, Oncological and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy.,Graduate School of Microbiology and Virology, University of Modena and Reggio Emilia, Modena, Italy
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30
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McCracken JM, Calderon GA, Robinson AJ, Sullivan CN, Cosgriff-Hernandez E, Hakim JCE. Animal Models and Alternatives in Vaginal Research: a Comparative Review. Reprod Sci 2021; 28:1759-1773. [PMID: 33825165 PMCID: PMC8204935 DOI: 10.1007/s43032-021-00529-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Accepted: 03/01/2021] [Indexed: 12/13/2022]
Abstract
While developments in gynecologic health research continue advancing, relatively few groups specifically focus on vaginal tissue research for areas like wound healing, device development, and/or drug toxicity. Currently, there is no standardized animal or tissue model that mimics the full complexity of the human vagina. Certain practical factors such as appropriate size and anatomy, costs, and tissue environment vary across species and moreover fail to emulate all aspects of the human vagina. Thus, investigators are tasked with compromising specific properties of the vaginal environment as it relates to human physiology to suit their particular scientific question. Our review aims to facilitate the appropriate selection of a model aptly addressing a particular study by discussing pertinent vaginal characteristics of conventional animal and tissue models. In this review, we first cover common laboratory animals studied in vaginal research-mouse, rat, rabbit, minipig, and sheep-as well as human, with respect to the estrus cycle and related hormones, basic reproductive anatomy, the composition of vaginal layers, developmental epithelial origin, and microflora. In light of these relevant comparative metrics, we discuss potential selection criteria for choosing an appropriate animal vaginal model. Finally, we allude to the exciting prospects of increasing biomimicry for in vitro applications to provide a framework for investigators to model, interpret, and predict human vaginal health.
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Affiliation(s)
- Jennifer M McCracken
- Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Gisele A Calderon
- Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Andrew J Robinson
- Department of Biomedical Engineering, The University of Texas at Austin, Austin, TX, 78712, USA
| | - Courtney N Sullivan
- Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, TX, 77030, USA
| | | | - Julie C E Hakim
- Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, TX, 77030, USA.
- Department of Pediatric Surgery, Texas Children's Hospital, Houston, TX, 77030, USA.
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31
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Nava-Memije K, Hernández-Cortez C, Ruiz-González V, Saldaña-Juárez CA, Medina-Islas Y, Dueñas-Domínguez RA, Aguilera-Arreola MG. Bacterial Vaginosis and Sexually Transmitted Infections in an HIV-Positive Cohort. FRONTIERS IN REPRODUCTIVE HEALTH 2021; 3:660672. [DOI: 10.3389/frph.2021.660672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Accepted: 03/15/2021] [Indexed: 11/13/2022] Open
Abstract
The World Health Organization (WHO) and the Joint United Nations Programme on HIV and AIDS (UNAIDS) suggest that sexually transmitted infection (STI) surveillance should include other genital infections and not only human immunodeficiency virus (HIV). To monitor the concomitance of bacterial vaginosis (BV) and STIs in HIV-seropositive (HIV+) and HIV-seronegative (HIV–) patients, a prospective study was conducted in a cohort of 349 volunteers at a clinic specializing in treating STIs in Mexico City. Microbiological and molecular methods were used to detect STIs and dysbiosis in HIV+ and HIV– individuals. The prevalence of infection was higher in HIV+ (69.28%) than in HIV– (54.87%) individuals. BV was the most frequent infection in HIV+ individuals, and polymicrobial infections were 3 times more common in HIV+ individuals than in HIV– individuals (31.48 vs. 10.98%). Behaviors documented in a self-administered questionnaire included low condom use frequency in HIV+ individuals co-infected with BV or a STI. This finding highlights the importance of surveillance using routine microbiological evaluations for the correct management of genital infections in HIV+ patients because in the presence of HIV, the clinical presentations, courses, and therapeutic responses of some STIs can differ from those in patients without HIV infection.
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32
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Vaginal microbiome and serum metabolite differences in late gestation commercial sows at risk for pelvic organ prolapse. Sci Rep 2021; 11:6189. [PMID: 33731737 PMCID: PMC7969946 DOI: 10.1038/s41598-021-85367-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Accepted: 02/28/2021] [Indexed: 12/13/2022] Open
Abstract
Sow mortality attributable to pelvic organ prolapse (POP) has increased in the U.S. swine industry and continues to worsen. Two main objectives of this study were, (1) to develop a perineal scoring system that can be correlated with POP risk, and (2) identify POP risk-associated biological factors. To assess POP risk during late gestation, sows (n = 213) were scored using a newly developed perineal scoring (PS) system. Sows scored as PS1 (low), PS2 (moderate), or PS3 (high) based on POP risk. Subsequently, 1.5, 0.8, and 23.1% of sows scored PS1, PS2, or PS3, respectively, experienced POP. To identify biomarkers, serum and vaginal swabs were collected from late gestation sows differing in PS. Using GC–MS, 82 serum metabolite differences between PS1 and PS3 animals (P < 0.05) were identified. Vaginal swabs were utilized for 16S rRNA gene sequencing and differences in vaginal microbiomes between PS1 and PS3 animals were detected on a community level (P < 0.01) along with differences in abundances of 89 operational taxonomic units (P < 0.05). Collectively, these data demonstrate that sows with greater POP risk have differential serum metabolites and vaginal microflora. Additionally, an initial and novel characterization of the sow vaginal microbiome was determined.
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Eskew AM, Stout MJ, Bedrick BS, Riley JK, Herter BN, Gula H, Jungheim ES, Wylie KM. Association of vaginal bacterial communities and reproductive outcomes with prophylactic antibiotic exposure in a subfertile population undergoing in vitro fertilization: a prospective exploratory study. F&S SCIENCE 2021; 2:71-79. [PMID: 34632426 PMCID: PMC8494411 DOI: 10.1016/j.xfss.2021.01.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
OBJECTIVE To determine whether prophylactic azithromycin is associated with the vaginal bacterial microbiome and clinical outcomes in subfertile women undergoing in vitro fertilization (IVF). DESIGN Prospective exploratory cohort study. SETTING Single academic fertility center. PATIENTS Subfertile women aged 18-43 years undergoing their first IVF cycle and fresh embryo transfer. INTERVENTION Primary exposure to prophylactic azithromycin (1 g orally) once at baseline. MAIN OUTCOME MEASURES The primary outcome was the effect of azithromycin on the vaginal microbiome compared with a no-azithromycin group at 3 time points throughout the IVF cycle (baseline, retrieval, and embryo transfer). The secondary outcomes were associations of vaginal bacterial communities with clinical outcomes. RESULTS A planned a priori exploratory cohort of 27 subjects (12 in the azithromycin treatment group and 15 in the no-azithromycin group) contributed 79 vaginal swabs for the analysis as part of an ongoing randomized, controlled noninferiority trial. No specific taxa were associated with azithromycin or pregnancy at any time point. Azithromycin did not affect alpha diversity or community stability. Although there were trends of a lower bacterial load and higher percentage of Lactobacillus species in the azithromycin group at the time of transfer, these were not statistically significant. In women who did not become pregnant, the percentage of Lactobacillus species was lower (P = .048; Hodges-Lehmann estimate of difference, 0.41; 95% confidence interval, 0.08-0.65) and the change in community composition over time was higher. The percentage of Lactobacillus species at baseline was not predictive of the percentage of Lactobacillus species at the time of embryo transfer. CONCLUSIONS Prophylactic azithromycin at baseline is not associated with changes in vaginal bacterial communities. Bacterial community features at the time of embryo transfer are associated with pregnancy. Bacterial community structures at baseline are not predictive of those at the time of embryo transfer. CLINICAL TRIAL REGISTRATION NUMBER NCT03386227.
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Affiliation(s)
- Ashley M. Eskew
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Washington University in St. Louis, St. Louis, Missouri
- Atrium Health, Women’s Institute, Charlotte, North Carolina
| | - Molly J. Stout
- Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, Washington University in St. Louis, St. Louis, Missouri
- Division of Maternal Fetal Medicine, University of Michigan, Ann Arbor, Michigan
| | - Bronwyn S. Bedrick
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Washington University in St. Louis, St. Louis, Missouri
- Department of Obstetrics and Gynecology, The Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Joan K. Riley
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Washington University in St. Louis, St. Louis, Missouri
| | - Brandi N. Herter
- Division of Infectious Diseases, Department of Pediatrics, Washington University in St. Louis, St. Louis, Missouri
| | - Haley Gula
- Division of Infectious Diseases, Department of Pediatrics, Washington University in St. Louis, St. Louis, Missouri
| | - Emily S. Jungheim
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Washington University in St. Louis, St. Louis, Missouri
- Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Kristine M. Wylie
- Division of Infectious Diseases, Department of Pediatrics, Washington University in St. Louis, St. Louis, Missouri
- McDonnell Genome Institute, Washington University in St. Louis, St. Louis, Missouri
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翟 青, 任 腾, 付 玉, 张 哲, 李 立, 李 亚, 孟 元. [Characteristics of cervical microecology in late reproductive-age women with different grades of cervical lesions]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2020; 40:1768-1775. [PMID: 33380398 PMCID: PMC7835688 DOI: 10.12122/j.issn.1673-4254.2020.12.11] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Indexed: 02/07/2023]
Abstract
OBJECTIVE To analyze the characteristics of cervical microecology in late reproductive-age women with cervical lesions and explore new methods for preventing cervical lesions. METHODS Cervical smears were obtained from a total of 147 women of late reproductive age, including 24 with high-risk HPV infection (HR-HPV), 27 with low-grade squamous intra-epithelial lesions (LSIL), 36 with high-grade squamous intra-epithelial lesions (HSIL), 35 with cervical cancer (CC) and 25 healthy women. llumina MiSeq sequencing of V3-V4 region of the 16S rRNA gene amplicons was used to characterize the vaginal microbiota of the women. OTUs analysis of the valid data was performed, and the α-diversity (Chao1, Simpson's Index and Shannon Index) and β-diversity (T-test, weighted UniFrac β diversity, and MetaStat analysis) were evaluated. RESULTS Dilution curve and species accumulation boxplot validated the quality of the samples. OTUs analysis of the 5 groups demonstrated that cervical bacterial genus consisted primarily of Lactobacillus, Garrotella and Prussiella. With the aggravation of the lesions, the expression abundance of Lactobacillus was decreased, and Gardnerella and Prussiella were increased. The Chao1, Simpson and Shannon indexex showed no significant difference. T test indicated that 9 to 15 genera from 4 groups showed significant difference from the healthy control group. In all but the LSIL group, Lactobacillus (P1-2=0.025, P1-3=0.025, P1-4 < 0.001), Gardiner (P1-2=0.01, P1-3=0.001, P1-4 < 0.001), and Pruella (P1-2=0.047, P1-3=0.023, P1-4=0.048) showed the highest abundance in the cervical smears. The abundance of Gardiner (P1-3=0.021), Ignatius (P1-3=0.015) and Streptococcus (P1-3=0.041) was the highest in women with LSIL as compared with healthy women. In all the 5 groups, MetaStat analysis showed that lactobacillus (P1-4=0.025), gardnella (P1-2=0.004, P1-4=0.002, P1-5=0.001) and proctella (P3-5=0.005) had the highest abundance in the cervical flora. CONCLUSIONS The abundance of Lactobacillus, Gardnella and Proctella is the highest in cervical bacteria at the genus level and may vary with disease progression. The α-diversity does not differ significantly, suggesting that apart from pathological factors, physiological factors also contribute to the difference in α-diversity. Women with LSIL have the most similar cervical flora to healthy women, which is consistent with the prognosis of the disease and confirms that the expression of cervical microecology is related to disease prognosis and may serve as a biological indicator for favoralble prognosis.
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Affiliation(s)
- 青枝 翟
- />解放军总医院第一医学中心妇产科,北京 100853Department of Obstetrics and Gynecology, First Medical Center, General Hospital of PLA, Beijing 100853, China
| | - 腾杰 任
- />解放军总医院第一医学中心妇产科,北京 100853Department of Obstetrics and Gynecology, First Medical Center, General Hospital of PLA, Beijing 100853, China
| | - 玉荣 付
- />解放军总医院第一医学中心妇产科,北京 100853Department of Obstetrics and Gynecology, First Medical Center, General Hospital of PLA, Beijing 100853, China
| | - 哲 张
- />解放军总医院第一医学中心妇产科,北京 100853Department of Obstetrics and Gynecology, First Medical Center, General Hospital of PLA, Beijing 100853, China
| | - 立安 李
- />解放军总医院第一医学中心妇产科,北京 100853Department of Obstetrics and Gynecology, First Medical Center, General Hospital of PLA, Beijing 100853, China
| | - 亚里 李
- />解放军总医院第一医学中心妇产科,北京 100853Department of Obstetrics and Gynecology, First Medical Center, General Hospital of PLA, Beijing 100853, China
| | - 元光 孟
- />解放军总医院第一医学中心妇产科,北京 100853Department of Obstetrics and Gynecology, First Medical Center, General Hospital of PLA, Beijing 100853, China
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Campisciano G, Iebba V, Zito G, Luppi S, Martinelli M, Fischer L, De Seta F, Basile G, Ricci G, Comar M. Lactobacillus iners and gasseri, Prevotella bivia and HPV Belong to the Microbiological Signature Negatively Affecting Human Reproduction. Microorganisms 2020; 9:microorganisms9010039. [PMID: 33375526 PMCID: PMC7824525 DOI: 10.3390/microorganisms9010039] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 12/19/2020] [Accepted: 12/22/2020] [Indexed: 12/18/2022] Open
Abstract
Infertile couples undergoing the use of assisted reproductive technology are a good study model to evaluate the microbiological signatures affecting reproductive health. We tested vaginal lavages, follicular fluids, embryo culture mediums, and seminal fluids from 47 couples for their microbiome composition and HPV infection. Twenty-five infertile couples were diagnosed with unexplained infertility, whereas 22 were diagnosed with explained infertility. Lactobacilli were dominant in the vaginal lavages of both patient groups, and the most abundant species was L. iners (CST III), which is linked to a decreased fertility rate. Besides this, L. gasseri—which is known to be associated with oocyte DNA fragmentation and decreased sperm mobility—was identified in the seminal fluids, follicular fluids, and embryo culture media of the unexplained infertility group. Prevotella was increased in the seminal fluids of the explained infertility group, along with HPV-positive seminal fluids: an infection commonly associated with infertility, especially male infertility. Prevotella has been described to negatively affect sperm motility. Taken together, these results suggest that the profiling of the reproductive tract microbiome can add new perspectives to human reproduction.
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Affiliation(s)
- Giuseppina Campisciano
- Advanced Laboratory of Translational Microbiology, Institute for Maternal and Child Health “IRCCS Burlo Garofolo”, Via dell’Istria 65, 34137 Trieste, Italy;
- Correspondence: ; Tel.: +39-040-3785209
| | - Valerio Iebba
- Department of Medical, Surgical and Health Sciences, University Hospital of Trieste, Strada di Fiume 447, 34149 Trieste, Italy; (V.I.); (F.D.S.); (G.R.)
| | - Gabriella Zito
- Obstetrics and Gynecology, Institute for Maternal and Child Health “IRCCS Burlo Garofolo”, Via dell’Istria 65, 34137 Trieste, Italy; (G.Z.); (S.L.); (M.M.); (L.F.)
| | - Stefania Luppi
- Obstetrics and Gynecology, Institute for Maternal and Child Health “IRCCS Burlo Garofolo”, Via dell’Istria 65, 34137 Trieste, Italy; (G.Z.); (S.L.); (M.M.); (L.F.)
| | - Monica Martinelli
- Obstetrics and Gynecology, Institute for Maternal and Child Health “IRCCS Burlo Garofolo”, Via dell’Istria 65, 34137 Trieste, Italy; (G.Z.); (S.L.); (M.M.); (L.F.)
| | - Leo Fischer
- Obstetrics and Gynecology, Institute for Maternal and Child Health “IRCCS Burlo Garofolo”, Via dell’Istria 65, 34137 Trieste, Italy; (G.Z.); (S.L.); (M.M.); (L.F.)
| | - Francesco De Seta
- Department of Medical, Surgical and Health Sciences, University Hospital of Trieste, Strada di Fiume 447, 34149 Trieste, Italy; (V.I.); (F.D.S.); (G.R.)
- Obstetrics and Gynecology, Institute for Maternal and Child Health “IRCCS Burlo Garofolo”, Via dell’Istria 65, 34137 Trieste, Italy; (G.Z.); (S.L.); (M.M.); (L.F.)
| | - Giuseppe Basile
- Orthopedic Department, Clinical Institute San Siro, Via Monreale 18, 20148 Milano, Italy;
| | - Giuseppe Ricci
- Department of Medical, Surgical and Health Sciences, University Hospital of Trieste, Strada di Fiume 447, 34149 Trieste, Italy; (V.I.); (F.D.S.); (G.R.)
- Obstetrics and Gynecology, Institute for Maternal and Child Health “IRCCS Burlo Garofolo”, Via dell’Istria 65, 34137 Trieste, Italy; (G.Z.); (S.L.); (M.M.); (L.F.)
| | - Manola Comar
- Advanced Laboratory of Translational Microbiology, Institute for Maternal and Child Health “IRCCS Burlo Garofolo”, Via dell’Istria 65, 34137 Trieste, Italy;
- Department of Medical, Surgical and Health Sciences, University Hospital of Trieste, Strada di Fiume 447, 34149 Trieste, Italy; (V.I.); (F.D.S.); (G.R.)
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Tsonis O, Gkrozou F, Paschopoulos M. Microbiome affecting reproductive outcome in ARTs. J Gynecol Obstet Hum Reprod 2020; 50:102036. [PMID: 33307241 DOI: 10.1016/j.jogoh.2020.102036] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 11/27/2020] [Accepted: 12/03/2020] [Indexed: 11/15/2022]
Abstract
Current scientific evidence reveals the importance of the human microbiome in health and disease. The presence of microbiota within the male and female reproductive tract has been well-documented and present theories imply that a possible disruption of their concentrations may have adverse effects on reproductive health and reproductive outcomes. Altered endometrial and vaginal microbiome could potential affect the reproductive outcome in infertile couples undergoing assisted reproductive techniques. Analysis of seminal fluids could also facilitate a prompt and appropriate approach in cases of abnormal male reproductive microflora. Essential knowledge on this subject could provide fertility experts better understanding with regards to unexplained fertility, increasing the success rates of ARTs. In this review, we summarise the current knowledge on the microbiota of the male and female reproductive tract and its impact on the success rates of ARTs in infertile couples.
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Affiliation(s)
- O Tsonis
- Department of Obstetrics and Gynaecology, University Hospital of Ioannina, Greece.
| | - F Gkrozou
- Department of Obstetrics and Gynaecology, University Hospitals of Birmingham, UK.
| | - M Paschopoulos
- Department of Obstetrics and Gynaecology, University Hospital of Ioannina, Greece.
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Castanheira CP, Sallas ML, Nunes RAL, Lorenzi NPC, Termini L. Microbiome and Cervical Cancer. Pathobiology 2020; 88:187-197. [PMID: 33227782 DOI: 10.1159/000511477] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 09/07/2020] [Indexed: 11/19/2022] Open
Abstract
Persistent infection with some types of mucosal human papillomavirus (HPV) is the etiological factor for the development of cervical cancer and its precursor lesions. Besides, several cofactors are known to play a role in cervical disease onset and progression either by favoring or by preventing HPV infection and persistence. The microbiome of a healthy female genital tract is characterized by the presence of 1 or few varieties of lactobacilli. However, high-throughput studies addressing the bacterial diversity and abundance in the female genital tract have shown that several factors, including hormonal levels, hygiene habits, and sexually transmitted diseases may disrupt the natural balance, favoring the outgrowth of some groups of bacteria, which in turn may favor some pathological states. Recently, the vaginal microbiome has emerged as a new variable that could greatly influence the natural history of HPV infections and their clinical impact. In this context, changes in the vaginal microbiome have been detected in women infected with HPV and women with HPV-associated lesions and cancer. However, the role of specific bacteria groups in the development/progression or prevention/regression of HPV-associated pathologies is not well understood. In this review we summarize the current knowledge concerning changes in vaginal microbiome and cervical disease. We discuss the potential functional interplay between specific bacterial groups and HPV infection outcomes.
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Affiliation(s)
| | - Mayara Luciana Sallas
- Innovation in Cancer Laboratory, Centro de Investigação Translacional em Oncologia, Instituto do Câncer do Estado de São Paulo Octavio Frias de Oliveira, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Rafaella Almeida Lima Nunes
- Innovation in Cancer Laboratory, Centro de Investigação Translacional em Oncologia, Instituto do Câncer do Estado de São Paulo Octavio Frias de Oliveira, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | | | - Lara Termini
- Innovation in Cancer Laboratory, Centro de Investigação Translacional em Oncologia, Instituto do Câncer do Estado de São Paulo Octavio Frias de Oliveira, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil,
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Di Simone N, Santamaria Ortiz A, Specchia M, Tersigni C, Villa P, Gasbarrini A, Scambia G, D’Ippolito S. Recent Insights on the Maternal Microbiota: Impact on Pregnancy Outcomes. Front Immunol 2020; 11:528202. [PMID: 33193302 PMCID: PMC7645041 DOI: 10.3389/fimmu.2020.528202] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2020] [Accepted: 08/27/2020] [Indexed: 12/20/2022] Open
Abstract
Hormonal changes during and after pregnancy are linked with modifications in the maternal microbiota. We describe the importance of the maternal microbiota in pregnancy and examine whether changes in maternal microbiotic composition at different body sites (gut, vagina, endometrium) are associated with pregnancy complications. We analyze the likely interactions between microbiota and the immune system. During pregnancy, the gastrointestinal (gut) microbiota undergoes profound changes that lead to an increase in lactic acid-producing bacteria and a reduction in butyrate-producing bacteria. The meaning of such changes needs clarification. Additionally, several studies have indicated a possible involvement of the maternal gut microbiota in autoimmune and lifelong diseases. The human vagina has its own microbiota, and changes in vaginal microbiota are related to several pregnancy-related complications. Recent studies show reduced lactobacilli, increased bacterial diversity, and low vaginal levels of beta-defensin 2 in women with preterm births. In contrast, early and healthy pregnancies are characterized by low diversity and low numbers of bacterial communities dominated by Lactobacillus. These observations suggest that early vaginal cultures that show an absence of Lactobacillus and polymicrobial vaginal colonization are risk factors for preterm birth. The endometrium is not a sterile site. Resident endometrial microbiota has only been defined recently. However, questions remain regarding the main components of the endometrial microbiota and their impact on the reproductive tract concerning both fertility and pregnancy outcomes. A classification based on endometrial bacterial patterns could help develop a microbiota-based diagnosis as well as personalized therapies for the prevention of obstetric complications and personalized treatments through nutritional, microbiotic, or pharmaceutical interventions.
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Affiliation(s)
- Nicoletta Di Simone
- Dipartimento di Scienze della Vita e Sanità Pubblica, Università Cattolica del Sacro Cuore, Rome, Italy
- Dipartimento di Scienze della Salute della Donna, del Bambino e di Sanità Pubblica, Fondazione Policlinico Universitario A. Gemelli Istituto di Ricovero e Cura a Carattere Scientifico, Rome, Italy
| | | | - Monia Specchia
- Dipartimento di Scienze della Vita e Sanità Pubblica, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Chiara Tersigni
- Dipartimento di Scienze della Salute della Donna, del Bambino e di Sanità Pubblica, Fondazione Policlinico Universitario A. Gemelli Istituto di Ricovero e Cura a Carattere Scientifico, Rome, Italy
| | - Paola Villa
- Dipartimento di Scienze della Vita e Sanità Pubblica, Università Cattolica del Sacro Cuore, Rome, Italy
- Dipartimento di Scienze della Salute della Donna, del Bambino e di Sanità Pubblica, Fondazione Policlinico Universitario A. Gemelli Istituto di Ricovero e Cura a Carattere Scientifico, Rome, Italy
| | - Antonio Gasbarrini
- Dipartimento di Scienze Gastroenterologiche, Endocrino-Metaboliche e Nefro-Urologiche, Fondazione Policlinico Universitario A. Gemelli Istituto di Ricovero e Cura a Carattere Scientifico, Rome, Italy
| | - Giovanni Scambia
- Dipartimento di Scienze della Vita e Sanità Pubblica, Università Cattolica del Sacro Cuore, Rome, Italy
- Dipartimento di Scienze della Salute della Donna, del Bambino e di Sanità Pubblica, Fondazione Policlinico Universitario A. Gemelli Istituto di Ricovero e Cura a Carattere Scientifico, Rome, Italy
| | - Silvia D’Ippolito
- Dipartimento di Scienze della Salute della Donna, del Bambino e di Sanità Pubblica, Fondazione Policlinico Universitario A. Gemelli Istituto di Ricovero e Cura a Carattere Scientifico, Rome, Italy
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Brown H, Drexler M. Improving the Diagnosis of Vulvovaginitis: Perspectives to Align Practice, Guidelines, and Awareness. Popul Health Manag 2020; 23:S3-S12. [PMID: 32997581 PMCID: PMC7591372 DOI: 10.1089/pop.2020.0265] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Vulvovaginitis is a frequent reason for women to see a health care provider and has been linked to adverse reproductive and psychosocial consequences. Accurate diagnosis is a cornerstone of effective treatment, yet misdiagnosis of this condition approaches 50%, raising the risk of recurrence. The past 3 decades have seen few improvements over the traditional means of diagnosing the 3 main causes of vaginitis: bacterial vaginosis, Candida infections, and trichomoniasis. Newer molecular tests, which are both more sensitive and specific, have introduced the potential to transform the diagnosis of vaginitis—ensuring more accurate diagnoses and timely interventions, while reducing health care costs and enhancing patients' quality of life. Clinical approaches and professional guidelines should be updated to reflect advances in molecular testing and improve the diagnosis and management of acute and recurrent vulvovaginitis.
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Affiliation(s)
- Haywood Brown
- Professor Obstetrics Gynecology, University South Florida, Tampa, Florida, USA
| | - Madeline Drexler
- Harvard Public Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
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Carey MP, Rich C, Norris AL, Krieger N, Gavarkovs AG, Kaplan C, Guthrie KM, Carey KB. A Brief Clinic-Based Intervention to Reduce Alcohol Misuse and Sexual Risk Behavior in Young Women: Results from an Exploratory Clinical Trial. ARCHIVES OF SEXUAL BEHAVIOR 2020; 49:1231-1250. [PMID: 32189096 PMCID: PMC7150639 DOI: 10.1007/s10508-020-01635-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Revised: 12/17/2019] [Accepted: 01/09/2020] [Indexed: 06/10/2023]
Abstract
This exploratory trial determined the feasibility, acceptability, and preliminary efficacy of a brief intervention (BI), supplemented with text messaging and a curated Web site, on alcohol use and sexual risk behavior among young women. Young women seeking care at a reproductive health clinic were screened for alcohol misuse and sexual risk behavior. Those who screened positive and who agreed to participate (N = 48; M = 22.67 years) were randomized to either (a) a brief in-person session during which personalized feedback regarding alcohol use and sexual risk taking was provided and discussed, or (b) a control condition. Feasibility was assessed by recruitment and retention rates. Acceptability was assessed with participant ratings of their intervention. Efficacy was measured using self-reported alcohol use and sexual behavior at baseline and during a 3-month follow-up. We supplemented the quantitative data with qualitative data from semi-structured interviews. Feasibility data indicated that 64% of eligible women agreed to participate, 74% of eligible women were enrolled, and 86% of enrolled women were retained through follow-up. Acceptability data showed that women who received the BI reported strong satisfaction with their intervention (M = 4.65 vs. 3.98 on a five-point scale) and also reported that text messaging was helpful (M = 4.73 on a seven-point scale) and acceptable (M = 5.27 on a seven-point scale). Qualitative data provided additional support for BI feasibility and acceptability. Efficacy data showed that women in both conditions reduced alcohol use and sexual risk behavior over time; women who received the BI reduced their maximum daily alcohol intake more than controls (BI from 7.68 to 4.82 standard drinks vs. control from 6.48 to 5.65; Wald χ2 = 4.93, p < .05). Women in the BI reported fewer occasions of condomless sex (median = 2.50) than controls (median = 5.00) at the follow-up, but this difference was not statistically significant (OR = 0.61, 95% CI [0.32, 1.15]). A brief intervention, supplemented with text messaging and a Web site, that targeted alcohol use and sexual behavior was feasible and acceptable to young women and led to lower levels of alcohol misuse and sexual risk behavior.
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Affiliation(s)
- Michael P Carey
- Centers for Behavioral and Preventive Medicine, The Miriam Hospital, Coro West, Suite 309, 164 Summit Avenue, Providence, RI, 02906, USA.
- Department of Psychiatry and Human Behavior, The Warren Alpert Medical School of Brown University, Providence, RI, USA.
- Department of Behavioral and Social Science, School of Public Health, Brown University, Providence, RI, USA.
| | - Carla Rich
- Centers for Behavioral and Preventive Medicine, The Miriam Hospital, Coro West, Suite 309, 164 Summit Avenue, Providence, RI, 02906, USA
| | - Alyssa L Norris
- Centers for Behavioral and Preventive Medicine, The Miriam Hospital, Coro West, Suite 309, 164 Summit Avenue, Providence, RI, 02906, USA
- Department of Psychiatry and Human Behavior, The Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Naomi Krieger
- Centers for Behavioral and Preventive Medicine, The Miriam Hospital, Coro West, Suite 309, 164 Summit Avenue, Providence, RI, 02906, USA
| | - Adam G Gavarkovs
- Department of Behavioral and Social Science, School of Public Health, Brown University, Providence, RI, USA
| | - Clair Kaplan
- Department of Clinical Research, Planned Parenthood of Southern New England, New Haven, CT, USA
- Center for Interdisciplinary Research on AIDS, Yale University, New Haven, CT, USA
| | - Kate M Guthrie
- Centers for Behavioral and Preventive Medicine, The Miriam Hospital, Coro West, Suite 309, 164 Summit Avenue, Providence, RI, 02906, USA
- Department of Psychiatry and Human Behavior, The Warren Alpert Medical School of Brown University, Providence, RI, USA
- Department of Behavioral and Social Science, School of Public Health, Brown University, Providence, RI, USA
| | - Kate B Carey
- Department of Behavioral and Social Science, School of Public Health, Brown University, Providence, RI, USA
- Center for Alcohol and Addiction Studies, Brown University, Providence, RI, USA
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Levy M, Bassis CM, Kennedy E, Yoest KE, Becker JB, Bell J, Berger MB, Bruns TM. The rodent vaginal microbiome across the estrous cycle and the effect of genital nerve electrical stimulation. PLoS One 2020; 15:e0230170. [PMID: 32163469 PMCID: PMC7067422 DOI: 10.1371/journal.pone.0230170] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Accepted: 01/27/2020] [Indexed: 12/12/2022] Open
Abstract
Treatment options are limited for the approximately 40% of postmenopausal women worldwide who suffer from female sexual dysfunction (FSD). Neural stimulation has shown potential as a treatment for genital arousal FSD, however the mechanisms for its improvement are unknown. One potential cause of some cases of genital arousal FSD are changes to the composition of the vaginal microbiota, which is associated with vulvovaginal atrophy. The primary hypothesis of this study was that neural stimulation may induce healthy changes in the vaginal microbiome, thereby improving genital arousal FSD symptoms. In this study we used healthy rats, which are a common animal model for sexual function, however the rat vaginal microbiome is understudied. Thus this study also sought to examine the composition of the rat vaginal microbiota. Treatment rats (n = 5) received 30 minutes of cutaneous electrical stimulation targeting the genital branch of the pudendal nerve, and Control animals (n = 4) had 30-minute sessions without stimulation. Vaginal lavage samples were taken during a 14-day baseline period including multiple estrous periods and after twice-weekly 30-minute sessions across a six-week trial period. Analysis of 16S rRNA gene sequences was used to characterize the rat vaginal microbiota in baseline samples and determine the effect of stimulation. We found that the rat vaginal microbiota is dominated by Proteobacteria, Firmicutes, and Actinobacteria, which changed in relative abundance during the estrous cycle and in relationship to each other. While the overall stimulation effects were unclear in these healthy rats, some Treatment animals had less alteration in microbiota composition between sequential samples than Control animals, suggesting that stimulation may help stabilize the vaginal microbiome. Future studies may consider additional physiological parameters, in addition to the microbiome composition, to further examine vaginal health and the effects of stimulation.
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Affiliation(s)
- Micah Levy
- Neuroscience, University of Michigan, Ann Arbor, Michigan, United States of America
- Biointerfaces Institute, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Christine M. Bassis
- Internal Medicine, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Eric Kennedy
- Biointerfaces Institute, University of Michigan, Ann Arbor, Michigan, United States of America
- Biomedical Engineering, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Katie E. Yoest
- Psychology, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Jill B. Becker
- Psychology, University of Michigan, Ann Arbor, Michigan, United States of America
- Molecular and Behavioral Neurosciences Institute, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Jason Bell
- Obstetrics and Gynecology, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Mitchell B. Berger
- Obstetrics and Gynecology, University of Michigan, Ann Arbor, Michigan, United States of America
- Obstetrics and Gynecology, Main Line Health, Wynnewood, Pennsylvania, United States of America
| | - Tim M. Bruns
- Biointerfaces Institute, University of Michigan, Ann Arbor, Michigan, United States of America
- Biomedical Engineering, University of Michigan, Ann Arbor, Michigan, United States of America
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42
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Mechanistic insights into the action of probiotics against bacterial vaginosis and its mediated preterm birth: An overview. Microb Pathog 2020; 141:104029. [PMID: 32014462 DOI: 10.1016/j.micpath.2020.104029] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Accepted: 01/29/2020] [Indexed: 02/07/2023]
Abstract
The human body is a reservoir of numerous micro-creatures; whose role is substantial and indispensable in the overall development of human beings. The advances in omic approaches have offered powerful means to decipher the core microbiome and metabolome diversities in a specific organ system. The establishment of lactobacilli in the female reproductive tract is thought to be a paramount prerequisite that maintains homeostatic conditions for a sustainable and healthy pregnancy. Nevertheless, a plethora of such Lactobacillus strains of vaginal source revealed probiotic phenotypes. The plummeting in the occurrence of lactobacilli in the vaginal ecosystem is associated with several adverse pregnancy outcomes (APOs). One such pathological condition is "Bacterial Vaginosis" (BV), a pathogen dominated gynecological threat. In this scenario, the ascending traffic of notorious Gram-negative/variable BV pathogens to the uterus is one of the proposed pathways that give rise to inflammation-related APOs like preterm birth. Since antibiotic resistance is aggravating among urogenital pathogens, the probiotics intervention remains one of the alternative biotherapeutic strategies to overcome BV and its associated APOs. Perhaps, the increased inclination towards the safer and natural biotherapeutic strategies rather than pharmaceutical drugs for maintaining gestational and reproductive health resulted in the use of probiotics in pregnancy diets. In this context, the current review is an attempt to highlight the microbiome and metabolites signatures of BV and non-BV vaginal ecosystem, inflammation or infection-related preterm birth, host-microbial interactions, role and effectiveness of probiotics to fight against aforesaid diseased conditions.
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43
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Ault TB, Clemmons BA, Reese ST, Dantas FG, Franco GA, Smith TPL, Edwards JL, Myer PR, Pohler KG. Uterine and vaginal bacterial community diversity prior to artificial insemination between pregnant and nonpregnant postpartum cows1. J Anim Sci 2020; 97:4298-4304. [PMID: 31250893 DOI: 10.1093/jas/skz210] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Accepted: 06/26/2019] [Indexed: 01/20/2023] Open
Abstract
The present study evaluated the bovine vaginal and uterine bacterial community diversity and its relationship to fertility. Postpartum beef cows (n = 68) were synchronized beginning on day -21 and ending with timed artificial insemination (TAI) on day 0. Pregnancy was diagnosed 30 d after TAI. Uterine and vaginal flushes were collected on day -21, -9, and -2 for bacterial DNA extraction to sequence the V1 to V3 hypervariable regions of the 16S rRNA gene. Results indicated a decrease in the number of bacterial species over time in the uterus of resulting pregnant and nonpregnant beef cows (P < 0.0001). Principal coordinate analyses (PCoA) depicted clustering of samples, indicating closely related bacterial communities, by day in the uterus and vagina (P < 0.0001). At day -2, uterine samples from nonpregnant and pregnant animals clustered separately (P < 0.0001), with nonpregnant animal samples clustering tightly together. Overall, the current study suggests the shift in the reproductive bacterial communities' diversity and phylogenetic relationship leading up to the time of breeding may contribute to successful pregnancy establishment.
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Affiliation(s)
- Taylor B Ault
- Department of Animal Science, University of Tennessee, Knoxville, TN
| | - Brooke A Clemmons
- Department of Animal Science, University of Tennessee, Knoxville, TN
| | - Sydney T Reese
- Department of Animal Science, University of Tennessee, Knoxville, TN.,Department of Animal Science, Texas A&M University, College Station, TX
| | - Felipe G Dantas
- Department of Animal Science, University of Tennessee, Knoxville, TN
| | - Gessica A Franco
- Department of Animal Science, University of Tennessee, Knoxville, TN.,Department of Animal Science, Texas A&M University, College Station, TX
| | - Tim P L Smith
- U.S. Meat Animal Research Center, Agricultural Research Service, United States Department of Agriculture, Clay Center, NE
| | - J Lannett Edwards
- Department of Animal Science, University of Tennessee, Knoxville, TN
| | - Phillip R Myer
- Department of Animal Science, University of Tennessee, Knoxville, TN
| | - Ky G Pohler
- Department of Animal Science, University of Tennessee, Knoxville, TN.,Department of Animal Science, Texas A&M University, College Station, TX
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44
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Zangl I, Pap IJ, Aspöck C, Schüller C. The role of Lactobacillus species in the control of Candida via biotrophic interactions. MICROBIAL CELL 2019; 7:1-14. [PMID: 31921929 PMCID: PMC6946018 DOI: 10.15698/mic2020.01.702] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Microbial communities have an important role in health and disease. Candida spp. are ubiquitous commensals and sometimes opportunistic fungal pathogens of humans, colonizing mucosal surfaces of the genital, urinary, respiratory and gastrointestinal tracts and the oral cavity. They mainly cause local mucosal infections in immune competent individuals. However, in the case of an ineffective immune defense, Candida infections may become a serious threat. Lactobacillus spp. are part of the human microbiome and are natural competitors of Candida in the vaginal environment. Lactic acid, low pH and other secreted metabolites are environmental signals sensed by fungal species present in the microbiome. This review briefly discusses the ternary interaction between host, Lactobacillus species and Candida with regard to fungal infections and the potential antifungal and fungistatic effect of Lactobacillus species. Our understanding of these interactions is incomplete due to the variability of the involved species and isolates and the complexity of the human host.
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Affiliation(s)
- Isabella Zangl
- University of Natural Resources and Life Sciences Vienna (BOKU), Department of Applied Genetics and Cell Biology (DAGZ), Tulln, Austria
| | - Ildiko-Julia Pap
- University Hospital of St. Pölten, Institute for Hygiene and Microbiology, St Pölten, Austria
| | - Christoph Aspöck
- University Hospital of St. Pölten, Institute for Hygiene and Microbiology, St Pölten, Austria
| | - Christoph Schüller
- University of Natural Resources and Life Sciences Vienna (BOKU), Department of Applied Genetics and Cell Biology (DAGZ), Tulln, Austria.,Bioactive Microbial Metabolites (BiMM), BOKU, Tulln, Austria
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45
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Stoyancheva G. Study of helveticin gene in Lactobacillus crispatus strains and evaluation of its use as a phylogenetic marker. Arch Microbiol 2019; 202:205-208. [PMID: 31388693 DOI: 10.1007/s00203-019-01711-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 07/29/2019] [Accepted: 07/31/2019] [Indexed: 01/16/2023]
Abstract
Lactobacilli are a part of the human microbiome in healthy humans. Studies of their physiological and genetic characteristics are the basis for their use in probiotic preparations. This report is a brief description of the helveticin gene found in two Lactobacillus crispatus strains, which are a part of the human microbiome. Our analysis showed that the two variants of the gene are not solely characteristic of strains isolated from humans. In the phylogenetic analysis, we found that the studied sequence (this gene) showed a significant difference between the species of the genus Lactobacillus and could be used as a phylogenetic marker.
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Affiliation(s)
- Galina Stoyancheva
- Department of Microbial Genetics, The Stephan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, Acad. G. Bonchev str. bl. 26, Sofia, Bulgaria.
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46
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Heil BA, Paccamonti DL, Sones JL. Role for the mammalian female reproductive tract microbiome in pregnancy outcomes. Physiol Genomics 2019; 51:390-399. [PMID: 31251700 DOI: 10.1152/physiolgenomics.00045.2019] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Since the discovery of the microbiome in humans, it has been studied in many mammalian species. Different microbiological communities with variable richness and diversity have been found among these species in distinct areas of the reproductive tract. Human studies have shown that the composition of the microbiome is dependent on body site and several host-related factors. Furthermore, specific phyla have been identified among the different species and within distinct areas of the female reproductive tract, but a "core" microbiome of the female reproductive tract has not been defined in any species. Moreover, the function of the microbiome in the reproductive tract is not yet fully understood. However, it has been suggested that a change in diversity of the microbiome and the presence or absence of specific microbial species might be useful indicators of pregnancy outcomes. Increased comprehensive knowledge of the microbiological communities in the female reproductive tract is needed since adverse outcomes represent a significant problem to many species, including livestock, exotic or endangered species, and humans. To the authors' knowledge, a review combining current female reproductive tract microbiome data among different mammalian species has not been published yet. Herein is a comprehensive review of what is known in the field of the female reproductive microbiome and how it correlates with reproductive success or failure in mammals. Further studies may lead to optimization of therapies in the treatment of reproductive tract infections and pregnancy failure, and may create opportunities for novel approaches for improving reproductive efficiency in animals and people.
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Affiliation(s)
- Babiche A Heil
- Department of Veterinary Clinical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, Louisiana
| | - Dale L Paccamonti
- Department of Veterinary Clinical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, Louisiana
| | - Jenny L Sones
- Department of Veterinary Clinical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, Louisiana
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47
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Characterization of microbial communities in the chicken oviduct and the origin of chicken embryo gut microbiota. Sci Rep 2019; 9:6838. [PMID: 31048728 PMCID: PMC6497628 DOI: 10.1038/s41598-019-43280-w] [Citation(s) in RCA: 80] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Accepted: 04/15/2019] [Indexed: 01/02/2023] Open
Abstract
The transferred microbiota from mother to baby constitutes the initial infant gastrointestinal microbiota and has an important influence on the development and health of infants in human. However, the reproductive tract microbiota of avian species and its inheritance have rarely been studied. We aimed to characterize the microbial community in the chicken reproductive tract and determine the origin of the chicken embryo gut microbiota. Microbiota in four different portions of chicken oviduct were determined using 16S rRNA metagenomic approach with the IonTorrent platform. Additionally, we analyzed the mother hen’s magnum and cloaca, descendent egg, and embryo gut microbiota. The microbial composition and relative abundance of bacterial genera were stable throughout the entire chicken reproductive tract, without significant differences between the different parts of the oviduct. The chicken reproductive tract showed a relatively high abundance of Lactobacillus species. The number of bacterial species in the chicken reproductive tract significantly increased following sexual maturation. Core genera analysis detected 21 of common genera in the maternal magnum and cloaca, descendent egg shell, egg white, and embryo gut. Some elements of the maternal oviduct microbiota appear to be transferred to the embryo through the egg white and constitute most of the embryo gut bacterial population.
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48
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Diop K, Dufour JC, Levasseur A, Fenollar F. Exhaustive repertoire of human vaginal microbiota. ACTA ACUST UNITED AC 2019. [DOI: 10.1016/j.humic.2018.11.002] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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49
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Moragianni D, Dryllis G, Andromidas P, Kapeta-Korkouli R, Kouskouni E, Pessach I, Papalexis P, Kodonaki A, Athanasiou N, Pouliakis A, Baka S. Genital tract infection and associated factors affect the reproductive outcome in fertile females and females undergoing in vitro fertilization. Biomed Rep 2019; 10:231-237. [PMID: 30972218 PMCID: PMC6439431 DOI: 10.3892/br.2019.1194] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Accepted: 02/05/2019] [Indexed: 12/28/2022] Open
Abstract
Assisted reproductive techniques including in vitro fertilization (IVF) are being used increasingly worldwide and screening for genital tract infections (GTIs) is recommended prior to treatment as their presence may affect the success rate of IVF. The current study aimed to assess the possible associations between GTI-associated factors and reproductive outcome in a group of reproductive age fertile females and infertile females receiving IVF. A total of 111 infertile women enrolled in an IVF programme (Group A) and 104 fertile women (mothers of at least one child; Group B) underwent microbiological screening of vaginal and cervical samples. All samples were cultured using different protocols for aerobic pathogens, bacterial vaginosis (BV), Ureaplasma urealyticum, Mycoplasma hominis, Chlamydia trachomatis and human papilloma virus (HPV). Although each group were comparable in age, more infertile women were >30 years (P=0.0064), had a higher education level (P=0.0001) and were smokers (P=0.007). Only BV (P=0.0013) was more prevalent in Group A. Of the 111 infertile females who were scheduled for IVF, 32 females had a successful pregnancy (Group C) and 79 females exhibited IVF failure (Group D). Tubal factor (P=0.012), estradiol-2 (E2) levels <2,500 pg/ml (P=0.0009) and Mycoplasma infection (P=0.003) were identified to be the strongest predictors of IVF failure. The current study determined certain GTI-associated factors that may contribute to infertility in Greek females of reproductive age as well as other risk factors associated with failure in patients undergoing IVF. Further studies are required to confirm this conclusion.
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Affiliation(s)
- Dimitra Moragianni
- Department of Microbiology, 'Aretaieion' General Hospital, National and Kapodistrian University of Athens, Athens 11528, Greece
| | - George Dryllis
- epartment of Pathology and Physiology, 'Laikon' General Hospital, National and Kapodistrian University of Athens, Athens 11527, Greece
| | - Panagiotis Andromidas
- The Fifth Orthopedic Clinic of Hospital for Accidents and Rehabilitation of Injured and Disabled People General Hospital, Athens 14561, Greece
| | - Rachil Kapeta-Korkouli
- Department of Microbiology, 'Aretaieion' General Hospital, National and Kapodistrian University of Athens, Athens 11528, Greece
| | - Evangelia Kouskouni
- Department of Microbiology, 'Aretaieion' General Hospital, National and Kapodistrian University of Athens, Athens 11528, Greece
| | - Ilias Pessach
- Second Department of Internal Medicine, Division of Hematology, 'ATTIKO' University Hospital, National and Kapodistrian University of Athens, Athens 12462, Greece
| | - Petros Papalexis
- Laboratory of Microbiology, 'Laikon' General Hospital, National and Kapodistrian University of Athens, Athens 11527, Greece
| | - Antigoni Kodonaki
- Laboratory of Microbiology, 'Laikon' General Hospital, National and Kapodistrian University of Athens, Athens 11527, Greece
| | | | - Avraham Pouliakis
- Second Department of Pathology, University General Hospital 'ATTIKON', School of Medicine, National and Kapodistrian University of Athens, Athens 12462, Greece
| | - Stavroula Baka
- Department of Microbiology, 'Aretaieion' General Hospital, National and Kapodistrian University of Athens, Athens 11528, Greece
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50
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Yeruva T, Lee CH. Regulation of Vaginal Microbiome by Nitric Oxide. Curr Pharm Biotechnol 2019; 20:17-31. [PMID: 30727888 DOI: 10.2174/1389201020666190207092850] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Revised: 07/18/2018] [Accepted: 01/30/2019] [Indexed: 12/15/2022]
Abstract
In this review, the composition and regulation of vaginal microbiome that displays an apparent microbial diversity and interacts with other microbiota in the body are presented. The role of nitric oxide (NO) in the regulation of vaginal microflora in which lactobacillus species typically dominate has been delineated from the perspective of maintaining gynecologic ecosystem and prevention of onset of bacteriostatic vaginosis (BV) and/or sexually transmitted diseases (STD) including HIV-1 transmission. The interactions between NO and vaginal microbiome and its influence on the levels of Lactobacillus, hormones and other components are described. The recent progress, such as NO drugs, probiotic Lactobacilli and Lactobacillus microbots, that can be explored to alleviate abnormality of vagina microbiome, is also discussed. An identification of Oral-GI-Vagina axis, as well as the relationship between NO and Lactobacillus regulation in the healthy or pathological status of vagina microbiome, surely offers the advanced drug delivery option against BV or STD including AIDS.
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Affiliation(s)
- Taj Yeruva
- Division of Pharmaceutical Sciences, School of Pharmacy, University of Missouri, Kansas City, MO, 64108, United States
| | - Chi H Lee
- Division of Pharmaceutical Sciences, School of Pharmacy, University of Missouri, Kansas City, MO, 64108, United States
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