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https://www.readbyqxmd.com/read/29772525/vaginal-microbiota-dysmicrobism-and-role-of-biofilm-forming-bacteria
#1
Giuseppina Campisciano, Nunzia Zanotta, Vincenzo Petix, Lucia Corich, Francesco De Seta, Manola Comar
Bacterial vaginosis involves the presence of a polymicrobial biofilm on the vaginal epithelium, guaranteeing immune escape and spread of antibiotic resistance. To spot known biofilm-forming bacteria, we profiled the vaginal microbiome of sixty-four symptomatic women suffering from a different grade of vaginal disorders and sixty asymptomatic healthy women. Specific microbial profiles distinguished symptomatic from asymptomatic women and characterized the grade of dysmicrobism within the symptomatic group. Lactobacillus crispatus and iners predominated on the healthy vaginal mucosa, while Lactobacillus gasseri predominated in the intermediate dysmicrobism...
June 1, 2018: Frontiers in Bioscience (Elite Edition)
https://www.readbyqxmd.com/read/29769280/molecular-diagnosis-of-bacterial-vaginosis-an-update
#2
Jenell S Coleman, Charlotte A Gaydos
Bacterial vaginosis (BV) is the most common cause of vaginal discharge in reproductive age women. BV has been associated with poor reproductive outcomes like preterm delivery, acquisition of sexually transmitted infections including HIV, and pelvic inflammatory disease. BV represents acquisition of a diverse community of anaerobic and facultative bacteria and a reduction in lactobacilli. It can be diagnosed using several tests ranging from clinical indicators, point-of-care tests, and molecular assays. Molecular technologies are objective, able to detect fastidious bacteria, allow quantitation, and are ideal for self-collected vaginal swabs...
May 16, 2018: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/29756665/metabolomics-as-a-clinical-testing-method-for-the-diagnosis-of-vaginal-dysbiosis
#3
Emiley Watson, Gregor Reid
Microbes play an important role in vaginal health, with lactobacilli a particularly abundant species. When dysbiosis occurs, the tools to determine whether it is a condition such as bacterial vaginosis, and whether it warrants antibiotic treatment, are currently suboptimal. We propose that standardization and implementation of an affordable metabolomics-based diagnostic technique could reduce instances of false positives, stress associated with misdiagnosis, and potentially save time and money. Basing diagnosis on the detection of pH elevated above 4...
May 14, 2018: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/29745065/characterization-of-a-novel-gram-stain-positive-anaerobic-coccus-isolated-from-the-female-genital-tract-genome-sequence-and-description-of-murdochiella-vaginalis-sp-nov
#4
Khoudia Diop, Awa Diop, Saber Khelaifia, Catherine Robert, Fabrizio Di Pinto, Jérémy Delerce, Didier Raoult, Pierre-Edouard Fournier, Florence Bretelle, Florence Fenollar
Strain Marseille-P2341T , a nonmotile, nonspore-forming, Gram-stain-positive anaerobic coccus, was isolated in the vaginal specimen of a patient with bacterial vaginosis using culturomics. Its growth occurred at temperatures ranging from 25 to 42°C, with pH between 6.5 and 8.5, and at NaCl concentrations lower than 5%. The major fatty acids were C18:1n9 (27.7%) and C16:0 (24.4%). Its genome is 1,671,491 bp long with 49.48 mol% of G+C content. It is composed of 1,501 genes: 1,446 were protein-coding genes and 55 were RNAs...
May 9, 2018: MicrobiologyOpen
https://www.readbyqxmd.com/read/29718358/identification-of-key-bacteria-involved-in-the-induction-of-incident-bacterial-vaginosis-a-prospective-study
#5
Christina A Muzny, Eugene Blanchard, Christopher M Taylor, Kristal J Aaron, Rajesh Talluri, Michael E Griswold, David T Redden, Meng Luo, David A Welsh, William J Van Der Pol, Elliot J Lefkowitz, David H Martin, Jane R Schwebke
Objective: To determine the sequence of events preceding incident BV (iBV). Methods: African American women who have sex with women (AAWSW) with no Amsel criteria and Nugent score 0-3 were followed for iBV (Nugent score 7-10 on at least 2-3 consecutive days) with self-collected vaginal swabs for 90 days. For women with iBV and women maintaining normal vaginal flora, 16S rRNA gene sequencing targeting V4 was performed. Longitudinal vaginal microbiome data were analyzed...
April 28, 2018: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29692813/prevalence-of-bacterial-vaginosis-and-its-association-with-risk-factors-among-nonpregnant-women-a-hospital-based-study
#6
Eliza Ranjit, Bijendra Raj Raghubanshi, Smrity Maskey, Pramila Parajuli
Bacterial vaginosis (BV) is an ecological imbalance of the vaginal microbiota affecting mostly women of reproductive age group. This study was carried out among 160 nonpregnant women registered at the Outpatient Department of Gynaecology/Obstetrics of KIST Medical College Teaching Hospital, Imadol, Lalitpur, Nepal, from November 2014 to May 2015. The aim of the study was to assess the association of the risk factors with BV and analyze the type of bacteria associated with BV. Nugent's scoring method was used for diagnosis of BV in this study...
2018: International Journal of Microbiology
https://www.readbyqxmd.com/read/29685081/longitudinal-trajectory-of-vulvovaginal-candidiasis-trichomoniasis-and-bacterial-vaginosis-during-pregnancy-as-well-as-the-impact-on-pregnancy-outcome-a-preliminary-study
#7
Cheng-Yang Hu, Feng-Li Li, Xiao-Guo Hua, Wen-Jiang, Xiu-Jun Zhang
OBJECTIVES: The aims of this study were to describe the course of vulvovaginal candidiasis (VVC), trichomoniasis, and bacterial vaginosis (BV) in pregnancy and to explore the association between these longitudinal changes and pregnancy outcomes. METHODS: A total of 793 pregnant women were enrolled at the first trimester of pregnancy and were followed prospectively twice at the second and third trimester. VVC, trichomoniasis, and BV were evaluated at each trimester of pregnancy...
April 23, 2018: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29683763/saccharomyces-cerevisiae-based-probiotic-as-novel-anti-microbial-agent-for-therapy-of-bacterial-vaginosis
#8
Samuele Sabbatini, Claudia Monari, Nathalie Ballet, Paolo Mosci, Amélie Cayzeele Decherfe Fanny Pélerin, Stefano Perito, Paolo Scarpelli, Anna Vecchiarelli
In this study, we demonstrate, for the first time, that Saccharomyces cerevisiae-based probiotic shows an inhibitory effect on Gardnerella vaginalis infection. This effect is likely due to several actions: direct interference with adherence to vaginal tissues, inhibition of sialidase activity, reduction of vaginal epithelial exfoliation. Gardnerella vaginalis does not induce vaginal inflammation and no inflammatory cytokines were, indeed, produced, by the mouse vagina, neither by Gardnerella vaginalis and by the probiotic...
April 23, 2018: Virulence
https://www.readbyqxmd.com/read/29671516/vaginitis-diagnosis-and-treatment
#9
Heather L Paladine, Urmi A Desai
Vaginitis is defined as any condition with symptoms of abnormal vaginal discharge, odor, irritation, itching, or burning. The most common causes of vaginitis are bacterial vaginosis, vulvovaginal candidiasis, and trichomoniasis. Bacterial vaginosis is implicated in 40% to 50% of cases when a cause is identified, with vulvovaginal candidiasis accounting for 20% to 25% and trichomoniasis for 15% to 20% of cases. Noninfectious causes, including atrophic, irritant, allergic, and inflammatory vaginitis, are less common and account for 5% to 10% of vaginitis cases...
March 1, 2018: American Family Physician
https://www.readbyqxmd.com/read/29656416/women-infected-with-hiv-and-the-impact-of-associated-sexually-transmitted-infections
#10
REVIEW
Somaia Reda, Fernanda Aguiar Gonçalves, Melissa Mello Mazepa, Newton Sérgio de Carvalho
OBJECTIVE: To review the relationship between concomitant sexually transmitted infections in women infected with HIV. METHODS: PubMed and Scopus were searched for articles published in English and Portuguese between January 1, 1994, and December 31, 2015, using relevant keywords, including AIDS, HIV, female genital diseases, and sexually transmitted infections. Articles that associated sexually transmitted infections with HIV-infected women were selected for inclusion...
April 14, 2018: International Journal of Gynaecology and Obstetrics
https://www.readbyqxmd.com/read/29648469/the-stimulation-of-the-vaginal-immune-system-with-short-term-administration-of-a-vaginal-gel-containing-fraction-of-propionibacterium-acnes-hyaluronic-acid-and-polycarbophil-is-efficacious-in-vaginal-infections-dependent-on-disorders-in-the-vaginal-ecosystem
#11
Gian Benedetto Melis, Bruno Piras, Maria Francesca Marotto, Manuela Neri, Valentina Corda, Valerio Vallerino, Alessandra Saba, Stefano Lello, Monica Pilloni, Pierina Zedda, Anna Maria Paoletti, Valerio Mais
The vaginal immune system (VIS) is the first defense against antigens recognized as foreign. Substances capable of locally activating the VIS could be a valid strategy to treat vulvo-vaginal infections (VVI), caused by changes in the vaginal ecosystem, such as bacterial vaginosis (BV), vulvo-vaginal candidiasis (CA), and mixed vaginitis (MV). Bacterial lysates, obtained by crushing bacterial cultures, exert immuno-modulatory activities. The parietal fraction from Propionibacterium acnes is a patent of Depofarma (MoglianoVeneto, Italy)...
April 12, 2018: Gynecological Endocrinology
https://www.readbyqxmd.com/read/29643849/insights-into-vaginal-bacterial-communities-and-metabolic-profiles-of-chlamydia-trachomatis-infection-positioning-between-eubiosis-and-dysbiosis
#12
Carola Parolin, Claudio Foschi, Luca Laghi, Chenglin Zhu, Nicoletta Banzola, Valeria Gaspari, Antonietta D'Antuono, Barbara Giordani, Marco Severgnini, Clarissa Consolandi, Melissa Salvo, Roberto Cevenini, Beatrice Vitali, Antonella Marangoni
The vaginal microbiota plays a crucial role in maintaining the health and functioning of the female genital tract, preventing the colonization of urogenital pathogens and sexually transmitted infections. In this study, we characterized the vaginal bacterial communities and the metabolome associated to Chlamydia trachomatis infection (CT: 20 women), compared to healthy condition (H: 22 women) and bacterial vaginosis (BV: 19 women). A microarray-based tool (VaginArray), implemented with a real-time PCR for Gardnerella vaginalis , was used to determine the vaginal bacterial composition, whereas the metabolic profiles were assessed by a proton-based nuclear magnetic resonance (1 H-NMR) spectroscopy...
2018: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29643195/diagnostic-performance-of-a-molecular-test-versus-clinician-assessment-of-vaginitis
#13
Jane R Schwebke, Charlotte A Gaydos, Paul Nyirjesy, Sonia Paradis, Salma Kodsi, Charles K Cooper
Background: Vaginitis is a common complaint, diagnosed either empirically or using Amsel's criteria and wet mount microscopy. Objective: To determine characteristics of an investigational test (a molecular-based test for vaginitis), as compared to reference, for detection of bacterial vaginosis, Candida spp., and Trichomonas vaginalis Study Design: Vaginal specimens from a cross-sectional study were obtained from 1,740 women (≥18 years old), with vaginitis symptoms, during routine clinic visits (across 10 sites in the USA)...
April 11, 2018: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/29624945/the-threat-of-aerobic-vaginitis-to-pregnancy-and-neonatal-morbidity
#14
REVIEW
Eveline Kaambo, Charlene W J Africa
Aerobic vaginitis (AV) is an endogenous opportunistic infection brought about by the disruption of the normal vaginal microbiota. Its early diagnosis and treatment during pregnancy may reduce the risk of negative pregnancy outcomes. The aim of this review was to report on the aerobic bacteria most prevalent in AV and to provide evidence of the threat of untreated AV on pregnancy outcomes. More than 300 papers on preterm delivery were extracted from several research domains and filtered to include only AV-associated bacteria such as Staphylococcus aureus, Enterococcus faecalis, Escherichia coli and Group B streptococci and their association with adverse pregnancy outcomes...
June 2017: African Journal of Reproductive Health
https://www.readbyqxmd.com/read/29620787/distribution-of-genital-mollicutes-in-the-vaginal-ecosystem-of-women-with-different-clinical-conditions
#15
Claudio Foschi, Melissa Salvo, Antonietta D'Antuono, Valeria Gaspari, Nicoletta Banzola, Roberto Cevenini, Antonella Marangoni
Ureaplasma urelayticum (UU), Ureaplasma parvum (UP), Mycoplasma hominis (MH) and Mycoplasma genitalium (MG) are the most common Mollicutes of the female genital tract. Although many studies have addressed their possible role in the vaginal ecosystem, many aspects remain to be elucidated. The aim of this study was to evaluate the vaginal presence of ureaplasmas/mycoplasmas in women with different clinical conditions. By means of quantitative PCR assays, the prevalence and load of each Mollicute were assessed in different groups of pre-menopausal women: 'healthy' (n=29), women with bacterial vaginosis (BV) (n=21), patients with Chlamydia trachomatis (CT) infection (n=25) and subjects with vulvo-vaginal candidiasis (VVC) (n=23)...
April 5, 2018: New Microbiologica
https://www.readbyqxmd.com/read/29616193/a-comprehensive-in-silico-analysis-of-regulatory-snps-of-human-clec7a-gene-and-its-validation-as-genotypic-and-phenotypic-disease-marker-in-recurrent-vulvovaginal-infections
#16
Namarta Kalia, Manpreet Kaur, Sujata Sharma, Jatinder Singh
Recurrent Vulvovaginal infections (RVVI) are the commonly reported microbiological syndrome affecting millions of women globally. Various molecules of innate immune system are instrumental in clearance of these microbial pathogens, thus suggested as one of the most important contributing factor in determining the disease outcome. Dendritic cell-associated C-type lectin-1 (Dectin-1) is an important molecule of innate immunity that is primarily known for its role in antifungal defenses. However, role of dectin-1 in recognition of other pathogens is also documented...
2018: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/29609764/erratum-to-efficacy-and-safety-of-vaginally-administered-lyophilized-lactobacillus-crispatus-ip-174178-in-the-prevention-of-bacterial-vaginosis-recurrence-j-gynecol-obstet-hum-reprod-47-2018-81-7
#17
J M Bohbot, E Daraï, F Bretelle, G Brami, C Daniel, J M Cardot
No abstract text is available yet for this article.
April 2018: Journal of Gynecology Obstetrics and Human Reproduction
https://www.readbyqxmd.com/read/29607339/the-effect-of-prangos-ferulacea-vaginal-cream-on-accelerating-the-recovery-of-bacterial-vaginosis-a-randomized-controlled-clinical-trial
#18
Asieh Azadpour Motlagh, Mahrokh Dolatian, Faraze Mojab, Malihe Nasiri, Behrouz Ezatpour, Yadollah Sahranavard, Heshmat Shakiba, Bahram Rahimy, Kiandokht Ghanati
Background: The present study was conducted on the effect of prangos ferulacea vaginal cream on accelerating the recovery of bacterial vaginosis. Methods: This randomized controlled clinical trial was conducted on 100 non-pregnant women referring to health centers affiliated to Lorestan University of Medical Sciences in 2016 with the diagnosis of bacterial vaginosis based on the patient's complaints, Amsel's clinical criteria, and the Nugent microscopic criteria...
April 2018: International Journal of Community Based Nursing and Midwifery
https://www.readbyqxmd.com/read/29548268/use-of-copper-intrauterine-device-is-not-associated-with-higher-bacterial-vaginosis-prevalence-in-thai-hiv-positive-women
#19
Nadia Kancheva Landolt, Surasith Chaithongwongwatthana, Sumanee Nilgate, Nipat Teeratakulpisarn, Sasiwimol Ubolyam, Tanakorn Apornpong, Jintanat Ananworanich, Nittaya Phanuphak
The study assessed and compared bacterial vaginosis (BV) prevalence in Thai women in reproductive age in four study groups - group 1, HIV-positive with copper intrauterine device (Cu-IUD); group 2, HIV-positive without Cu-IUD; group 3, HIV-negative with Cu-IUD; and group 4, HIV-negative without Cu-IUD. We conducted a cross-sectional study. BV prevalence was assessed by Nugent score and Amsel criteria. Descriptive statistics was used to present baseline characteristics; kwallis rank test - to compare variables between the four groups; logistic regression - to assess factors, related to BV prevalence...
March 15, 2018: AIDS Care
https://www.readbyqxmd.com/read/29544661/vaginosis-associated-bacteria-and-its-association-with-hpv-infection
#20
Pablo Romero-Morelos, Cindy Bandala, Julián Jiménez-Tenorio, Mariana Valdespino-Zavala, Miriam Rodríguez-Esquivel, Reyna Anaid Gama-Ríos, Artfy Bandera, Mónica Mendoza-Rodríguez, Keiko Taniguchi, Daniel Marrero-Rodríguez, Ricardo López-Romero, Eva Ramón-Gallegos, Mauricio Salcedo
BACKGROUND AND OBJECTIVE: Cervical cancer is an important health problem in our country. It is known that there are several risk factors for this neoplasm, and it has been suggested that cervical microbiome alterations could play a role in the development and progress of cancer. Bacterial vaginosis associated bacteria such as Atopobium vaginae and Gardnerella vaginalis has been suggested as potential risk factor for cervical lesions and cervical cancer. MATERIAL AND METHODS: DNA from 177 cervical scraping samples was studied: 104 belonged to women without cytological or colposcopic alterations and 73 samples from precursor lesions with previous human papillomavirus (HPV) infection history...
March 12, 2018: Medicina Clínica
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