keyword
MENU ▼
Read by QxMD icon Read
search

gardnerella

keyword
https://www.readbyqxmd.com/read/29100864/sustained-simultaneous-delivery-of-metronidazole-and-doxycycline-from-polycaprolactone-matrices-designed-for-intravaginal-treatment-of-pelvic-inflammatory-disease
#1
Meenakshi Pathak, Allan G A Coombes, BoMi Ryu, Peter J Cabot, Mark S Turner, Cheryn Palmer, Dongjie Wang, Kathryn J Steadman
Poly(ɛ-caprolactone) (PCL) intra-vaginal matrices were produced for local delivery of a combination of antibacterials, by rapidly cooling a mixture of drug powders dispersed in PCL solution. Matrices loaded with different combinations of metronidazole (10, 15 and 20% w/w) and doxycycline (10% w/w), were evaluated in vitro for release behavior and antibacterial activity. Rapid 'burst release' of 8-15% of the doxycycline content and 31-37% of the metronidazole content occurred within 24 h when matrices were immersed in simulated vaginal fluid (SVF) at 37°C...
October 31, 2017: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29059077/the-microbiome-and-hiv-prevention-strategies-in-women
#2
Salim S Abdool Karim, Jo-Ann S Passmore, Cheryl Baxter
PURPOSE OF REVIEW: HIV prevention approaches that women can use and control are a priority. Results from topical and oral preexposure prophylaxis (PrEP) HIV prevention trials have produced inconsistent results in women. One of the main behavioural factors impacting effectiveness of PrEP has been suboptimal adherence. In this review, we examine biological factors that modulate topical PrEP efficacy, with particular focus on the vaginal microbiome. RECENT FINDINGS: Genital inflammation is an independent risk factor for HIV acquisition in women...
October 20, 2017: Current Opinion in HIV and AIDS
https://www.readbyqxmd.com/read/29043070/bacterial%C3%A2-vaginosis
#3
REVIEW
Phillip Hay
Bacterial vaginosis is the most prevalent cause of abnormal vaginal discharge in women of childbearing age. It can have a major impact on quality of life and psychological wellbeing if frequently recurrent and strongly symptomatic. The use of molecular techniques to study the vaginal microbiome is increasing our understanding of the dynamic changes in flora that occur in health and disease. It might soon be possible to separate Gardnerella into different pathogenic and non-pathogenic species. Many groups are studying compounds that can disrupt the biofilm which is dominated by Gardnerella and Atopobium vaginae...
2017: F1000Research
https://www.readbyqxmd.com/read/29038128/microbial-composition-predicts-genital-tract-inflammation-and-persistent-bacterial-vaginosis-in-adolescent-south-african-women
#4
Katie Lennard, Smritee Dabee, Shaun L Barnabas, Enock Havyarimana, Anna Blakney, Shameem Z Jaumdally, Gerrit Botha, Nonhlanhla N Mkhize, Linda-Gail Bekker, David A Lewis, Glenda Gray, Nicola Mulder, Jo-Ann S Passmore, Heather B Jaspan
Young African females are at increased risk of HIV acquisition, and genital inflammation or the vaginal microbiome may contribute to this risk. We studied these factors in 168 HIV negative South African adolescent women aged 16-22 years. Unsupervised clustering of 16S rRNA gene sequences revealed three clusters (subtypes), one of which was strongly associated with genital inflammation. In a multivariate model, microbiome compositional subtype and hormonal contraception were significantly associated with genital inflammation...
October 16, 2017: Infection and Immunity
https://www.readbyqxmd.com/read/28972465/prevalence-and-genetic-diversity-of-trichomonas-vaginalis-in-the-general-population-of-granada-and-co-infections-with-gardnerella-vaginalis-and-candida-species
#5
José Antonio Carrillo-Ávila, María Luisa Serrano-García, Jorge Fernández-Parra, Antonio Sorlózano-Puerto, José María Navarro-Marí, C Rune Stensvold, Jose Gutiérrez-Fernández
PURPOSE: Purulent or exudative genitourinary infections are a frequent cause of consultation in primary and specialized healthcare. The objectives of this study were: to determine the prevalence of Trichomonas vaginalis and co-infections with Candida spp. and Gardnerella vaginalis in vaginal secretion; and to use multilocus sequence typing (MLST) to analyse the genetic diversity of T. vaginalis strains. METHODOLOGY: The samples were submitted for analysis (n=5230) to a third-level hospital in Granada (Southern Spain) between 2011 and 2014; eight T...
October 2017: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/28970961/microorganisms-identified-in-the-maternal-bladder-discovery-of-the-maternal-bladder-microbiota
#6
Kristin M Jacobs, Krystal J Thomas-White, Evann E Hilt, Alan J Wolfe, Thaddeus P Waters
Objective  The objective of this study was to characterize the bladder microbiota in pregnancy. Methods  A prospective observational study of 51 pregnant women, admitted to a tertiary care hospital, who underwent straight catheterization urine collection or transurethral Foley catheter placement. 16S rRNA gene sequencing and enhanced quantitative urine culture assessed the maternal bladder microbiota with comparisons made to standard urine culture results. Results  Enhanced quantitative urine culture and 16S rRNA gene sequencing detected bacteria in the majority of participants...
July 2017: American Journal of Perinatology Reports
https://www.readbyqxmd.com/read/28959181/bacterial-biota-of-women-with-bacterial-vaginosis-treated-with-lactoferrin-an-open-prospective-randomized-trial
#7
Alessandra Pino, Giuliana Giunta, Cinzia L Randazzo, Salvatore Caruso, Cinzia Caggia, Antonio Cianci
Background: Bacterial vaginosis is the most frequent condition associated to the vaginal microbiota imbalance, affecting about the 40-50% of women in the world. Even if antibiotics are effcetive for bacterial vaginosis treatment a long-term recurrence rates, higher than 70%, is recorded. Lactoferrin is an iron-binding glycoprotein with bacteriostatic and bactericidal properties. It owns the ability to protect the host against infection, by binding and regulating the iron needed for the bacterial proliferation...
2017: Microbial Ecology in Health and Disease
https://www.readbyqxmd.com/read/28942850/characterization-and-complete-genome-sequences-of-l-rhamnosus-dsm-14870-and-l-gasseri-dsm-14869-contained-in-the-ecovag-%C3%A2-probiotic-vaginal-capsules
#8
Harold Marcotte, Kasper Krogh Andersen, Yin Lin, Fanglei Zuo, Zhu Zeng, Per Göran Larsson, Erik Brandsborg, Gunnar Brønstad, Lennart Hammarström
Lactobacillus rhamnosus DSM 14870 and Lactobacillus gasseri DSM 14869 were previously isolated from the vaginal epithelial cells (VEC) of healthy women and selected for the development of the vaginal EcoVag(®) probiotic capsules. EcoVag(®) was subsequently shown to provide long-term cure and reduce relapse of bacterial vaginosis (BV) as an adjunct to antibiotic therapy. To identify genes potentially involved in probiotic activity, we performed genome sequencing and characterization of the two strains. The complete genome analysis of both strains revealed the presence of genes encoding functions related to adhesion, exopolysaccharide (EPS) biosynthesis, antimicrobial activity, and CRISPR adaptive immunity but absence of antibiotic resistance genes...
December 2017: Microbiological Research
https://www.readbyqxmd.com/read/28931859/a-longitudinal-analysis-of-the-vaginal-microbiota-and-vaginal-immune-mediators-in-women-from-sub-saharan-africa
#9
Vicky Jespers, Jordan Kyongo, Sarah Joseph, Liselotte Hardy, Piet Cools, Tania Crucitti, Mary Mwaura, Gilles Ndayisaba, Sinead Delany-Moretlwe, Jozefien Buyze, Guido Vanham, Janneke H H M van de Wijgert
In cross-sectional studies increased vaginal bacterial diversity has been associated with vaginal inflammation which can be detrimental for health. We describe longitudinal changes at 5 visits over 8 weeks in vaginal microbiota and immune mediators in African women. Women (N = 40) with a normal Nugent score at all visits had a stable lactobacilli dominated microbiota with prevailing Lactobacillus iners. Presence of prostate-specific antigen (proxy for recent sex) and being amenorrhoeic (due to progestin-injectable use), but not recent vaginal cleansing, were significantly associated with microbiota diversity and inflammation (controlled for menstrual cycle and other confounders)...
September 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28923300/influence-of-co-infection-complicated-with-human-papillomavirus-on-cervical-intraepithelial-neoplasia-development-in-patients-with-atypical-squamous-cells-of-undetermined-significance
#10
Hisami Kiseki, Yutaka Tsukahara, Natsumi Tajima, Ayako Tanaka, Aya Horimoto, Naohiko Hashimura
AIM: Human papillomaviruses (HPV) infection is a primary cause of the development of cervical precancerous lesions and cervical cancer. However, the influence of other infections on intraepithelial neoplasia (CIN) development has not been fully elucidated. We evaluated the association between co-infection and CIN development in subjects with atypical squamous cells of undetermined significance (ASCUS). METHOD: Data for ASCUS subjects who had undergone testing for high risk HPV (HR-HPV) and pathological diagnosis were analyzed...
December 2017: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/28922066/the-effect-of-lysozyme-on-reducing-biofilms-by-staphylococcus-aureus-pseudomonas-aeruginosa-and-gardnerella-vaginalis-an-in-vitro-examination
#11
Mirsada Hukić, Dzenita Seljmo, Amra Ramovic, Monia Avdić Ibrišimović, Serkan Dogan, Jasna Hukic, Elma Feric Bojic
Two basic questions about lysozyme activities on the selected microorganisms were investigated, namely whether lysozyme inhibits biofilm production and which concentrations of the enzyme have the ability to change the natural biofilm producing capacity of different strains of Staphylococcus aureus (methicillin sensitive and resistant), Streptococcus pyogenes, Pseudomonas aeruginosa, and Gardnerella vaginalis. The effect of lysozyme on biofilm formation capacities of 16 strains of selected microorganisms was investigated, whereby four testing replicates have been performed in vitro using the Test Tube method, and the potential of lysozyme to change biofilm forming capacities depending on its concentration, species, and strains of microorganisms is demonstrated...
September 18, 2017: Microbial Drug Resistance: MDR: Mechanisms, Epidemiology, and Disease
https://www.readbyqxmd.com/read/28915448/the-composition-of-the-vaginal-microbiome-in-first-trimester-pregnant-women-influences-the-level-of-autophagy-and-stress-in-vaginal-epithelial-cells
#12
Dimitrios Nasioudis, Larry J Forney, G Maria Schneider, Karol Gliniewicz, Michael T France, Allison Boester, Mio Sawai, Jessica Scholl, Steven S Witkin
Epithelial cells lining the vagina are major components of genital tract immunity. The influence of the vaginal microbiome on properties of host epithelial cells is largely unexplored. We evaluated whether differences in the most abundant lactobacilli species or bacterial genera in the vagina of first trimester pregnant women were associated with variations in the extent of stress and autophagy in vaginal epithelial cells. Vaginal swabs from 154 first trimester pregnant women were analyzed for bacterial composition by amplification and sequencing of the V1-V3 region of bacterial 16S rRNA genes...
September 2017: Journal of Reproductive Immunology
https://www.readbyqxmd.com/read/28903767/treatment-of-biofilms-in-bacterial-vaginosis-by-an-amphoteric-tenside-pessary-clinical-study-and-microbiota-analysis
#13
Cornelia Gottschick, Zhi-Luo Deng, Marius Vital, Clarissa Masur, Christoph Abels, Dietmar H Pieper, Manfred Rohde, Werner Mendling, Irene Wagner-Döbler
BACKGROUND: Bacterial vaginosis (BV) is the most common vaginal syndrome among women in their reproductive years. It is associated with an increased risk of acquiring sexually transmitted infections and complications like preterm labor. BV is characterized by a high recurrence rate for which biofilms frequently found on vaginal epithelial cells may be a reason. RESULTS: Here, we report a controlled randomized clinical trial that tested the safety and effectiveness of a newly developed pessary containing an amphoteric tenside (WO3191) to disrupt biofilms after metronidazole treatment of BV...
September 13, 2017: Microbiome
https://www.readbyqxmd.com/read/28893789/gemini-cationic-amphiphiles-control-biofilm-formation-by-bacterial-vaginosis-pathogens
#14
Ammar Algburi, Yingyue Zhang, Richard Weeks, Nicole Comito, Saskia Zehm, Juanita Pinto, Kathryn E Uhrich, Michael L Chikindas
Antibiotic resistance and recurrence of bacterial vaginosis (BV), a polymicrobial infection, justify the need for novel antimicrobials to counteract microbial resistance to conventional antibiotics. Previously, two series of cationic amphiphiles (CAms), which self-assemble into supramolecular nanostructures with membrane-lytic properties, were designed with hydrophilic head groups and non-polar domains. The combination of CAms with commonly prescribed antibiotics is suggested as a promising strategy for targeting microorganisms that are resistant to conventional antibiotics...
September 11, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28875084/prevalence-of-bacterial-vaginosis-in-portuguese-pregnant-women-and-vaginal-colonization-by-gardnerella-vaginalis
#15
Daniela Machado, Joana Castro, José Martinez-de-Oliveira, Cristina Nogueira-Silva, Nuno Cerca
BACKGROUND: We aimed to determine the prevalence of vaginal colonization by Gardnerella vaginalis and of bacterial vaginosis (BV) in Portuguese pregnant women, and to identify risk factors for BV and G. vaginalis colonization in pregnancy. METHODS: A cross-sectional study was conducted among pregnant women aged ≥ 18 years who were attending in two public hospitals of the Northwest region of Portugal. Epidemiological data was collected by anonymous questionnaire...
2017: PeerJ
https://www.readbyqxmd.com/read/28861766/in-vitro-probiotic-properties-of-lactobacillus-salivarius-mg242-isolated-from-human-vagina
#16
Chang-Ho Kang, Seul Hwa Han, YongGyeong Kim, Nam-Soo Paek, Jae-Seong So
Vulvovaginal candidiasis (VVC) is a very common infection worldwide that is mainly caused by Candida albicans. In a previous study, we showed that Lactobacillus salivarius MG242 has anti-Gardnerella vaginalis activity. In this study, we investigated the potential of using L. salivarius MG242 for biocontrol of C. albicans. In line with the results from a spot overlay assay, MG242 inhibited the growth of C. albicans by 99.99 ± 0.01% in co-culture, suggesting that L. salivarius MG242 has the potential to be developed into a probiotic formula to treat or prevent VVC...
August 31, 2017: Probiotics and Antimicrobial Proteins
https://www.readbyqxmd.com/read/28860491/influence-of-pregnancy-history-on-the-vaginal-microbiome-of-pregnant-women-in-their-first-trimester
#17
Dimitrios Nasioudis, Larry J Forney, G Maria Schneider, Karol Gliniewicz, Michael France, Allison Boester, Mio Sawai, Jessica Scholl, Steven S Witkin
Pregnancy permanently alters maternal anatomy, physiology and immunity. We evaluated if the vaginal microbiome differed between women with a first or subsequent conception. Relative abundance of bacteria in the vaginal microbiome in first trimester pregnant women, 52 with their first known conception, 26 with a prior spontaneous or induced abortion but no deliveries and 77 with at least one prior birth, was determined by classifying DNA sequences from the V1-V3 region of bacterial 16 S rRNA genes. Lactobacillus crispatus was the numerically most abundant bacterium in 76...
August 31, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28860468/characterization-of-cervico-vaginal-microbiota-in-women-developing-persistent-high-risk-human-papillomavirus-infection
#18
Monica Di Paola, Cristina Sani, Ann Maria Clemente, Anna Iossa, Eloisa Perissi, Giuseppe Castronovo, Michele Tanturli, Damariz Rivero, Federico Cozzolino, Duccio Cavalieri, Francesca Carozzi, Carlotta De Filippo, Maria Gabriella Torcia
Changes in cervico-vaginal microbiota with Lactobacillus depletion and increased microbial diversity facilitate human papillomavirus (HPV) infection and might be involved in viral persistence and cancer development. To define the microbial Community State Types (CSTs) associated with high-risk HPV-persistence, we analysed 55 cervico-vaginal samples from HPV positive (HPV+) women out of 1029 screened women and performed pyrosequencing of 16S rDNA. A total of 17 samples from age-matched HPV negative (HPV-) women were used as control...
August 31, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28846702/association-between-statin-use-the-vaginal-microbiome-and-gardnerella-vaginalis-vaginolysin-mediated-cytotoxicity
#19
Abdallah A Abdelmaksoud, Philippe H Girerd, Erin M Garcia, J Paul Brooks, Lauren M Leftwich, Nihar U Sheth, Steven P Bradley, Myrna G Serrano, Jennifer M Fettweis, Bernice Huang, Jerome F Strauss, Gregory A Buck, Kimberly K Jefferson
BACKGROUND: Bacterial vaginosis (BV) is the leading dysbiosis of the vaginal microbiome. The pathways leading towards the development of BV are not well understood. Gardnerella vaginalis is frequently associated with BV. G. vaginalis produces the cholesterol-dependent cytolysin (CDC), vaginolysin, which can lyse a variety of human cells and is thought to play a role in pathogenesis. Because membrane cholesterol is required for vaginolysin to function, and because HMG-CoA reductase inhibitors (statins) affect not only serum levels of cholesterol but membrane levels as well, we hypothesized that statins might affect the vaginal microbiome...
2017: PloS One
https://www.readbyqxmd.com/read/28812207/the-vaginal-microbiome-and-its-potential-to-impact-efficacy-of-hiv-pre-exposure-prophylaxis-for-women
#20
REVIEW
Jennifer Velloza, Renee Heffron
PURPOSE OF REVIEW: This review describes existing evidence addressing the potential modulation of pre-exposure prophylaxis (PrEP) products, specifically 1% tenofovir (TFV) gel and oral tenofovir-based PrEP, by vaginal dysbiosis and discusses future considerations for delivering novel, long-acting PrEP products to women at high risk for vaginal dysbiosis and HIV. RECENT FINDINGS: We describe results from analyses investigating the modification of PrEP efficacy by vaginal dysbiosis and studies of biological mechanisms that could render PrEP ineffective in the presence of specific microbiota...
October 2017: Current HIV/AIDS Reports
keyword
keyword
96429
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"