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1.
Wiad Lek ; 76(10): 2313-2319, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37948732

RESUMEN

OBJECTIVE: The aim: To determine the prevalence of healthcare-associated bacterial vaginosis after gynecological surgeries and associated adverse pregnancy outcomes in Ukraine. PATIENTS AND METHODS: Materials and methods: Multicenter retrospective cohort study was conducted from January 2019 to December 2021 in eleven medical centers from eight regions of Ukraine. Vaginal cultures were obtained preoperatively from 3,502 women undergoing gynecologic surgery. Diagnosis of Bacterial Vaginosis is based on the Nugent and Amsel criteria. RESULTS: Results: Healthcare-associated bacterial vaginosis (HA BV) was diagnosed in 1,498 of 3,502 women, giving a prevalence rate of 42.8%. HA BV was significantly associated with preterm birth (risk ratio [RR], 2.68; 95% confidence interval [CI], 1.44-4.98), miscarriage (RR, 6.11; 95% CI, 3.22-14.11), low birth weight (RR, 3.20; 95% CI, 1.29-7.94), and premature rupture of membranes (RR, 6.75; 95% CI, 3.11-14.67). CONCLUSION: Conclusions: The HA BV after gynecological surgeries prevalence is high in Ukraine, with a concomitant adverse pregnancy outcome, including preterm birth, low birth weight, premature rupture of membranes, and miscarriage. A significant number of cases of bacterial vaginosis are associated with long-term use of antibiotics to treat post-operative infections.


Asunto(s)
Aborto Espontáneo , Complicaciones Infecciosas del Embarazo , Nacimiento Prematuro , Vaginosis Bacteriana , Embarazo , Femenino , Recién Nacido , Humanos , Resultado del Embarazo/epidemiología , Vaginosis Bacteriana/etiología , Vaginosis Bacteriana/complicaciones , Nacimiento Prematuro/epidemiología , Estudios Retrospectivos , Ucrania/epidemiología , Complicaciones Infecciosas del Embarazo/epidemiología , Complicaciones Infecciosas del Embarazo/diagnóstico
2.
BMC Infect Dis ; 23(1): 208, 2023 Apr 06.
Artículo en Inglés | MEDLINE | ID: mdl-37024856

RESUMEN

INTRODUCTION: Bacterial vaginosis (BV) is the most common vaginal dysbiosis among women of reproductive age. Micronutrient deficiencies, including vitamin D deficiency, can increase the risk of BV. The findings of previous studies regarding the relationship between vitamin D deficiency and BV were conflicting. Therefore, this study aimed to evaluate the association between BV and serum level of 25-hydroxy vitamin D. MATERIALS AND METHODS: This case-control study was conducted in Gonabad County in 2021. One hundred and twenty-five confirmed BV cases and 125 controls who were matched based on age and intercourse frequency (maximum difference of two days per week) enrolled in the study. Data collection was performed using a demographic and reproductive data questionnaire and a checklist for recording Whiff test results, serum 25-hydroxy vitamin D level, litmus paper observation, and microscopic findings (clue cells). Serum level of vitamin D was evaluated based on enzyme-linked immunoassay method (Monobind kit) from 0.5 ml venous blood drawn from each participant. The conditional logistic regression model was used to analyze data. RESULTS: The BV cases had significantly lower 25-hydroxy vitamin D serum levels than controls. The odds of BV increased with vitamin D deficiency (Adjusted odds ratio (AOR): 4.34, 95% confidence interval (CI): 1.39-13.4, p = 0.011, FDR q-value = 0.051), vitamin D insufficiency (AOR: 3.65, 95% CI: 1.23-10.85; p = 0.020; FDR q-value = 0.053), cigarette/hookah smoking (AOR: 3.65, 95% CI: 1.23, 10.85; p = 0.020; FDR q-value = 0.053) and lower age at first intercourse (AOR: 1.16, 95% CI: 1.05, 1.28; p = 0.004; FDR q-value = 0.048). The odds of BV was 0.80 and 0.78 times lower in participants who had coitus interruptus (AOR: 0.20, 95% CI: 0.06, 0.63; p = 0.006; FDR q-value = 0.048) and condom use (AOR: 0.28, 95% CI: 0.10, 0.79; p = 0.016; FDR q-value = 0.051), respectively, compared to participants who did not use contraceptives. CONCLUSION: These findings suggested that lower serum vitamin D levels were associated with an increased risk of developing BV. However, further studies are needed to confirm the results of the present study.


Asunto(s)
Vaginosis Bacteriana , Deficiencia de Vitamina D , Humanos , Femenino , Vaginosis Bacteriana/epidemiología , Vaginosis Bacteriana/etiología , Estudios de Casos y Controles , Vitamina D , Deficiencia de Vitamina D/complicaciones , Deficiencia de Vitamina D/epidemiología , Vitaminas , Calcifediol , Encuestas y Cuestionarios , Factores de Riesgo
3.
Am J Epidemiol ; 190(11): 2374-2383, 2021 11 02.
Artículo en Inglés | MEDLINE | ID: mdl-34008013

RESUMEN

Vaginal microbiota provide the first line of defense against urogenital infections primarily through protective actions of Lactobacillus species Perceived stress increases susceptibility to infection through several mechanisms, including suppression of immune function. We investigated whether stress was associated with deleterious changes to vaginal bacterial composition in a subsample of 572 women in the Longitudinal Study of Vaginal Flora, sampled from 1999 through 2002. Using Cox proportional hazards models, both unadjusted and adjusted for sociodemographic factors and sexual behaviors, we found that participants who exhibited a 5-unit-increase in Cohen's Perceived Stress Scale had greater risk (adjusted hazard ratio (HR) = 1.40, 95% confidence interval (CI): 1.13, 1.74) of developing molecular bacterial vaginosis (BV), a state with low Lactobacillus abundance and diverse anaerobic bacteria. A 5-unit increase in stress score was also associated with greater risks of transitioning from the L. iners-dominated community state type (26% higher) to molecular-BV (adjusted HR = 1.26, 95% CI: 1.01, 1.56) or maintaining molecular-BV from baseline (adjusted HR = 1.23, 95% CI: 1.01, 1.47). Inversely, women with baseline molecular-BV reporting a 5-unit stress increase were less likely to transition to microbiota dominated by L. crispatus, L. gasseri, or L. jensenii (adjusted HR = 0.81, 95% CI: 0.68, 0.99). These findings suggest that psychosocial stress is associated with vaginal microbiota composition, inviting a more mechanistic exploration of the relationship between psychosocial stress and molecular-BV.


Asunto(s)
Estrés Psicológico/complicaciones , Vagina/microbiología , Vaginosis Bacteriana/etiología , Adulto , Femenino , Humanos , Estudios Longitudinales , Microbiota , Estudios Prospectivos , Estrés Psicológico/microbiología , Vaginosis Bacteriana/psicología
4.
Expert Rev Clin Pharmacol ; 14(7): 821-836, 2021 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-33863265

RESUMEN

Introduction: Following a historical overview, the effect of different contraceptive methods on vaginal microbiome has been reviewed and summarized.Areas covered: Effects of combined hormonal contraceptives (oral or vaginal) and of progestin only (injectable and implantable), intrauterine devices/systems (copper- or levonorgestrel-releasing), on vaginal microbiome. In addition, mention is made of vaginal rings releasing antiviral drugs and lactic acid.Expert opinion: The vaginal microbiota (VM) is unique in that it is normally dominated by Lactobacillus species providing a degree of protection against infections; this however may vary, depending on the species and strains of Lactobacillus. Bacterial Vaginosis represents the most common dysbiosis of the VM and its prevalence can be influenced by use of contraception. Available evidence indicates that, under the influence of oral or systemically administered female sex hormones, there is apromotion of vaginal eubiosis, with aprevalence of ahealthy VM in which Lactobacilli predominate.


Asunto(s)
Anticoncepción/efectos adversos , Microbiota/efectos de los fármacos , Vagina/efectos de los fármacos , Animales , Anticoncepción/métodos , Anticonceptivos/administración & dosificación , Anticonceptivos/efectos adversos , Femenino , Humanos , Lactobacillus/aislamiento & purificación , Vagina/microbiología , Vaginosis Bacteriana/epidemiología , Vaginosis Bacteriana/etiología , Vaginosis Bacteriana/microbiología
5.
Mycoses ; 64(8): 909-917, 2021 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-33884668

RESUMEN

BACKGROUND: Rheumatic diseases and vaginal infections both increase the risk of preterm birth. It is unclear whether pregnant women with rheumatic disease are more likely to experience vaginal infections, which might potentially accumulate modifiable risk factors. OBJECTIVE: In this study, we sought to evaluate the vaginal microbiota of pregnant women with inflammatory rheumatic and inflammatory bowel disease. METHODS: A total of 539 asymptomatic women with singleton pregnancy were routinely screened for an abnormal vaginal microbiota between 10 + 0 and 16 + 0 gestational weeks. Vaginal smears were Gram-stained and microscopically analysed. Those with inflammatory diseases (with or without immunomodulatory therapy) were assigned to the case group and matched in a 1:3 ratio to healthy pregnant controls. RESULTS: Overall, an abnormal vaginal microbiota occurred more frequently among women of the case group, compared with those of the control group (33.8% vs 15.6%; 95% CI: 1.78-4.27, p < .001). In particular, Candida colonisation (22.3% vs 9.2%; 95% CI: 1.69-4.75, p < .001), but also bacterial vaginosis (14.9% vs 7.2%; 95% CI: 1.25-4.1, p = .006), occurred more often in the case than in the control group. No significant difference was found with regard to the occurrence of an abnormal vaginal microbiota between subgroups with and without immunomodulatory treatment (37.0% vs 27.1%; 95% CI: 0.29-1.35, p = .232). CONCLUSION: Pregnant women with inflammatory rheumatic and inflammatory bowel disease are at risk for bacterial vaginosis and Candida colonisation, which might pose a risk for preterm birth. Prospective studies are needed to further evaluate the influence of autoimmune conditions and immunosuppressive therapy on the vaginal microbiota.


Asunto(s)
Enfermedades Inflamatorias del Intestino/complicaciones , Microbiota , Fiebre Reumática/complicaciones , Vagina/microbiología , Vaginosis Bacteriana/etiología , Adulto , Estudios de Casos y Controles , Femenino , Humanos , Enfermedades Inflamatorias del Intestino/microbiología , Embarazo , Complicaciones Infecciosas del Embarazo/etiología , Complicaciones Infecciosas del Embarazo/microbiología , Mujeres Embarazadas , Estudios Prospectivos , Fiebre Reumática/microbiología , Factores de Riesgo , Vagina/patología , Vaginosis Bacteriana/microbiología
6.
PLoS One ; 15(6): e0235286, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32598394

RESUMEN

Bacterial vaginosis (BV) is a common vaginal infection among women of reproductive age. Increasing evidence suggests BV may be sexually transmitted indicating a potential role for the treatment of sexual partners. If partner treatment reduces BV recurrence in women, real-world success will depend on sexual partners' willingness to accept it. However, a lack of data exists on the acceptability of partner treatment among sexual partners, and no data exists on male partners' experience of BV specifically. The aim of this study was to explore male partners' views and experience of BV and their attitudes toward associated partner treatment. A social constructionist approach informed the framework of this study. Semi structured interviews were conducted with eleven men who participated in a BV partner treatment trial. Interviews were transcribed verbatim and analysed thematically. In the absence of symptoms in themselves, BV had little impact on men beyond their concerns for their partner's health and self-esteem. Acceptance of treatment was largely a demonstration of care and support. While all participants had accepted treatment, men surmised the primary reasons other men may reject treatment as being: if they felt BV had "nothing to do with them", which was related to not wanting to be viewed as having a 'problem' and exacerbated by norms of masculinity and STI-related stigma; lack of a diagnostic test to indicate if a male "had BV"; and a casual or less established relationship. Men's attitudes to BV and partner treatment were primarily influenced by the nature of their relationships. The ambiguous aetiology of BV appears to attenuate STI related stigma and questions of infidelity.


Asunto(s)
Aceptación de la Atención de Salud , Conducta Sexual/psicología , Parejas Sexuales/psicología , Enfermedades de Transmisión Sexual/transmisión , Vagina/microbiología , Vaginosis Bacteriana/tratamiento farmacológico , Adulto , Femenino , Humanos , Masculino , Persona de Mediana Edad , Enfermedades de Transmisión Sexual/diagnóstico , Vaginosis Bacteriana/etiología , Vaginosis Bacteriana/psicología , Adulto Joven
7.
BMC Infect Dis ; 19(1): 879, 2019 Oct 22.
Artículo en Inglés | MEDLINE | ID: mdl-31640583

RESUMEN

BACKGROUND: In Yemen, the underlying causes of infectious vaginitis have been neglected. Therefore, this study aimed to determine the prevalence and risk factors associated with bacterial vaginosis (BV), vulvovaginal candidiasis (VVC) and trichomonal vaginitis (TV) among non-pregnant reproductive-aged women. METHODS: A cross-sectional study was conducted among 347 non-pregnant reproductive-aged women seeking primary healthcare in Sana'a city, Yemen. Data about sociodemographic characteristics, lifestyle-related behaviors, routine hygienic practices, menstrual care and history and type of contraceptive intake were collected using a structured questionnaire. Vaginal discharge samples were collected and examined for discharge characteristics and pH by a gynecologist. Then, samples were examined for BV, VVC and TV. Data were analyzed using suitable statistical tests. RESULTS: Vaginal infections were prevalent among 37.6% of reproductive-aged women, where BV was the most prevalent (27.2%). VVC was significantly higher among symptomatic women and significantly associated with itching (P = 0.005). Using bivariate analysis, the age of < 25 years (odds ratio [OR] = 1.9, 95% confidence interval [CI]: 1.16-3.10; P = 0.010) and using intrauterine contraceptive devices (IUCDs) (OR = 1.8, 95% CI: 1.09-2.89; P = 0.020) were significantly associated with BV, while history of miscarriage was significantly associated with a lower risk of BV (OR = 0.5, 95% CI: 0.31-0.85, P = 0.009). However, polygyny was significantly associated with VVC (OR = 3.4, 95% CI: 1.33-8.66; P = 0.007). Multivariable analysis confirmed that age of < 25 years and using IUCD were the independent predictors of BV, while history of miscarriage was an independent protective factor against BV. On the other hand, marriage to a polygamous husband was the independent predictor of VVC. CONCLUSIONS: More than a third of non-pregnant reproductive-aged women seeking PHC in Sana'a have single or mixed infections with BV, VVC or TV. BV is the most frequent cause of vaginitis and is significantly associated with the age of < 25 years and using IUCDs, while VVC is significantly higher among women with polygamous husbands. Health education of polygamous husbands and their wives, regular monitoring of BV among IUCD users and screening women for vaginitis before treatment are recommended.


Asunto(s)
Candidiasis Vulvovaginal/epidemiología , Vaginitis por Trichomonas/epidemiología , Vaginosis Bacteriana/epidemiología , Adolescente , Adulto , Candidiasis Vulvovaginal/etiología , Coinfección , Estudios Transversales , Femenino , Humanos , Dispositivos Intrauterinos/estadística & datos numéricos , Matrimonio , Persona de Mediana Edad , Oportunidad Relativa , Prevalencia , Atención Primaria de Salud/estadística & datos numéricos , Factores de Riesgo , Vaginitis por Trichomonas/etiología , Vaginosis Bacteriana/etiología , Yemen/epidemiología , Adulto Joven
8.
Reprod Health ; 16(1): 151, 2019 Oct 22.
Artículo en Inglés | MEDLINE | ID: mdl-31640725

RESUMEN

OBJECTIVES: Bacterial vaginosis (BV), a clinical condition characterized by decreased vaginal Lactobacillus spp., is difficult to treat. We examined associations between micronutrient intake and a low-Lactobacillus vaginal microbiota as assessed by molecular methods (termed "molecular-BV"). METHODS: This cross-sectional analysis utilized data collected at the baseline visit of the Hormonal Contraception Longitudinal Study, a cohort of reproductive-aged women followed over 2 years while initiating or ceasing hormonal contraception (HC). The Block Brief 2000 Food Frequency Questionnaire was administered and micronutrient intakes were ranked. Vaginal microbiota composition was assessed using 16S rRNA gene amplicon sequencing and clustered into community state types (CSTs) based on the types and relative abundance of bacteria detected. Associations between the lowest estimated quartile intake of nutrients and having a low-Lactobacillus CST (molecular-BV) were evaluated by logistic regression. Separate models were built for each nutrient controlling for age, body mass index, behavioral factors, HC use and total energy intake. We also conducted a literature review of existing data on associations between micronutrient intakes and BV. RESULTS: Samples from 104 women were included in this analysis. Their mean age was 25.8 years (SD 4.3), 29.8% were African American, 48.1% were using HC, and 25% had molecular-BV. In adjusted multivariable analyses, the lowest quartile of betaine intake was associated with an increased odds of molecular-BV (aOR 9.2, p value < 0.01, [CI 2.4-35.0]). CONCLUSIONS: This is the first study to assess the association between estimated micronutrient intake and molecular-BV. Lower energy-adjusted intake of betaine was associated with an increased risk of molecular-BV. Betaine might have direct effects on the vaginal microenvironment or may be mediated through the gut microbiota. Additional research is needed to determine reproducibility of this finding and whether improved intake of select micronutrients such as betaine decreases the risk of BV and its sequelae.


Asunto(s)
Dieta/efectos adversos , Micronutrientes/efectos adversos , Vagina/microbiología , Vaginosis Bacteriana/etiología , Adulto , Estudios Transversales , Femenino , Humanos , Estudios Longitudinales , Masculino , Microbiota , Estado Nutricional
9.
J Int AIDS Soc ; 22 Suppl 6: e25346, 2019 08.
Artículo en Inglés | MEDLINE | ID: mdl-31468677

RESUMEN

INTRODUCTION: Globally, sexually transmitted infections (STI) affect >300 million people annually, and are a major cause of sexual and reproductive health complications in women. In this commentary, we describe how STIs interact with the immune and non-immune cells, both within and below the cervicovaginal mucosal barrier, to cause inflammation, which in turn has been associated with increased HIV acquisition risk. DISCUSSION: STIs have a major impact on the female genital mucosa, which is an important biological and physical barrier that forms the first line of defence against invading microorganisms such as HIV. Pattern recognition of STI pathogens, by receptors expressed either on the cell surface or inside the cell, typically triggers inflammation at the mucosal barrier. The types of mucosal responses vary by STI, and can be asymptomatic or culminate in the formation of discharge, ulcers and/or warts. While the aim of this response is to clear the invading microbes, in many cases these responses are either evaded or cause pathology that impairs barrier integrity and increases HIV access to target cells in the sub-mucosa. In addition, innate responses to STIs can result in an increased number of immune cells, including those that are the primary targets of HIV, and may contribute to the association between STIs and increased susceptibility to HIV acquisition. Many of these cells are mediators of adaptive immunity, including tissue-resident cells that may also display innate-like functions. Bacterial vaginosis (BV) is another common cause of inflammation, and evidence for multiple interactions between BV, STIs and HIV suggest that susceptibility to these conditions should be considered in concert. CONCLUSIONS: STIs and other microbes can induce inflammation in the genital tract, perturbing the normal robust function of the mucosal barrier against HIV. While the impact of STIs on the mucosal immune system and HIV acquisition is often under-appreciated, understanding their interactions of the infections with the immune responses play an important role in improving treatment and reducing the risk of HIV acquisition. The frequent sub-clinical inflammation associated with STIs underscores the need for better STI diagnostics to reverse the immunological consequences of infection.


Asunto(s)
Enfermedades de Transmisión Sexual/complicaciones , Vaginitis/etiología , Femenino , Infecciones por VIH/complicaciones , Humanos , Inflamación/etiología , Enfermedades de Transmisión Sexual/inmunología , Vaginosis Bacteriana/complicaciones , Vaginosis Bacteriana/etiología , Vaginosis Bacteriana/patología
10.
J Obstet Gynaecol Res ; 45(6): 1190-1196, 2019 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-30916426

RESUMEN

AIM: The aim of this study was to evaluate if thong use is associated with a higher report of urogenital infections, including urinary tract infections, yeast vaginitis and bacterial vaginosis. METHODS: A cross-sectional survey regarding underwear preferences and infectious history was designed and distributed to women via a crowdsourcing service. All survey questions related to the last 12 months. Parametric and nonparametric statistical methods were used to compare responses between thong wearers and nonthong wearers. Thong wearers were defined as women who wore a thong equal to or more than 50 % of the time. RESULTS: Nine hundred and eighty-six respondents met inclusion criteria and completed the survey; 186 (18.9%) were defined as thong wearers and 800 (81.1%) were defined as nonthong wearers in the last 12 months. Reported rates of urogenital infections in the last 12 months were not significantly different for thong wearers versus nonthong wearers. Thong use was not an independent predictor of any urogenital infection in this study. CONCLUSION: In this large cross-sectional study we found that oral sex was the only independent predictor of urinary tract infection and bacterial vaginosis, and that wearing noncotton crotch underwear was associated with yeast vaginitis. Wearing thong underwear was not associated with any urogenital infections. Medical providers should discuss sexual practices and underwear fabric, rather than style, with their patients when there is concern for urogenital infection.


Asunto(s)
Candidiasis Vulvovaginal/etiología , Vestuario/efectos adversos , Higiene , Conducta Sexual , Infecciones Urinarias/etiología , Vaginosis Bacteriana/etiología , Adolescente , Adulto , Candidiasis Vulvovaginal/epidemiología , Vestuario/estadística & datos numéricos , Estudios Transversales , Femenino , Encuestas Epidemiológicas , Humanos , Persona de Mediana Edad , Conducta Sexual/estadística & datos numéricos , Infecciones Urinarias/epidemiología , Vaginosis Bacteriana/epidemiología , Adulto Joven
11.
PLoS One ; 14(1): e0210825, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-30677048

RESUMEN

Vaginal washing is a common practice associated with adverse outcomes including bacterial vaginosis (BV) and HIV infection. Prior studies have not examined the associations between vaginal washing and individual vaginal bacteria, or whether these associations are independent of the effect of vaginal washing on BV. The purpose of this study was to characterize the association between vaginal washing and the presence and concentrations of vaginal bacteria associated with optimal and sub-optimal vaginal states. The analysis utilized data from participants in the placebo arm of the Preventing Vaginal Infections trial, which enrolled HIV-uninfected women from the United States and Kenya. Detection of bacterial taxa associated with BV was compared between visits with versus without reported vaginal washing. The effect of vaginal washing on a number of vaginal bacteria differed substantially (p<0.05) between the US and Kenya, so results were stratified by country. In US women, vaginal washing was associated with a significantly higher likelihood of detection of BV associated bacterium 1 (BVAB1) (relative risk [RR] 1.55, 95% confidence interval [CI] 1.15-2.09, p = 0.004), BVAB2 (RR 1.99, 95%CI 1.46-2.71, p<0.001), Mageeibacillus indolicus (RR 2.08, 95%CI 1.46-2.96, p<0.001), Atopobium vaginae (RR 1.34, 95%CI 1.13-1.59, p = 0.001), Leptotrichia/Sneathia species (RR 1.66, 95% CI 1.33-2.09, p<0.001), Megasphaera species (RR 1.78, 95%CI 1.34-2.37, p<0.001) and Gardnerella vaginalis (RR 1.08, 95%CI 1.01-1.16, p = 0.02). No significant association between vaginal washing and bacterial detection was found in Kenyan women. Adjustment for bacterial vaginosis diagnosed by Gram stain did not alter these results. This study provides evidence that the association between vaginal washing and detection of individual bacterial taxa can vary regionally. For some vaginal bacteria, the association with vaginal washing may be independent of the effect on Gram stain detection of BV. Larger prospective studies in diverse geographic settings should explore whether eliminating vaginal washing impacts the presence and concentrations of key vaginal bacteria.


Asunto(s)
Ducha Vaginal/efectos adversos , Vaginosis Bacteriana/etiología , Adolescente , Adulto , Carga Bacteriana , Comparación Transcultural , Femenino , Humanos , Kenia , Microbiota , Persona de Mediana Edad , Riesgo , Especificidad de la Especie , Estados Unidos , Vagina/microbiología , Ducha Vaginal/métodos , Vaginosis Bacteriana/microbiología , Adulto Joven
12.
Sex Transm Infect ; 95(3): 219-227, 2019 05.
Artículo en Inglés | MEDLINE | ID: mdl-30518620

RESUMEN

OBJECTIVES: Bacterial vaginosis (BV) increases women's susceptibility to sexually transmitted infections (STIs) and HIV and may partly explain the high incidence of STI/HIV among girls and young women in East and southern Africa. The objectives of this study were to investigate the association between BV and sexual debut, to investigate other potential risk factors of BV and to estimate associations between BV and STIs. METHODS: Secondary school girls in Mwanza, aged 17 and 18 years, were invited to join a cross-sectional study. Consenting participants were interviewed and samples were obtained for STI and BV testing. Factors associated with prevalent BV were analysed using multivariable logistic regression. Y-chromosome was tested as a biomarker for unprotected penile-vaginal sex. RESULTS: Of the 386 girls who were enrolled, 163 (42%) reported having ever had penile-vaginal sex. Ninety-five (25%) girls had BV. The prevalence of BV was 33% and 19% among girls who reported or did not report having ever had penile-vaginal sex, respectively. BV was weakly associated with having ever had one sex partner (adjusted odds ratio (aOR) 1.59;95% CI 0.93 to 2.71) and strongly associated with two or more partners (aOR = 3.67; 95% CI 1.75 to 7.72), receptive oral sex (aOR 6.38; 95% CI 1.22 to 33.4) and having prevalent human papillomavirus infection (aOR = 1.73; 95% CI 1.02 to 2.95). Of the 223 girls who reported no penile-vaginal sex, 12 (5%) tested positive for an STI and 7 (3%) tested positive for Y-chromosome. Reclassifying these positive participants as having ever had sex did not change the key results. CONCLUSIONS: Tanzanian girls attending school had a high prevalence of BV. Increasing number of sex partner was associated with BV; however, 19% of girls who reported no penile-vaginal sex had BV. This suggests that penile-vaginal sexual exposure may not be a prerequisite for BV. There was evidence of under-reporting of sexual debut.


Asunto(s)
Infecciones por Papillomavirus/epidemiología , Conducta Sexual , Estudiantes , Vaginosis Bacteriana/epidemiología , Adolescente , Estudios Transversales , Femenino , Humanos , Incidencia , Infecciones por Papillomavirus/etiología , Prevalencia , Salud Reproductiva , Factores de Riesgo , Tanzanía/epidemiología , Vaginosis Bacteriana/etiología
13.
Ann Clin Microbiol Antimicrob ; 17(1): 40, 2018 Nov 22.
Artículo en Inglés | MEDLINE | ID: mdl-30466466

RESUMEN

OBJECTIVES: The long-term use of intrauterine devices (IUDs) may lead to biofilm formation on the surface. The aim of this study was to perform the culture- and PCR-based detection of bacteria/fungi from the biofilm of the removed IUDs with different time periods in place. METHODS: For a 2-year period, 100 IUD users were involved in the study. In the majority of the cases, IUDs were removed because of the patients' complaints. Beside the aerobic and anaerobic culture, species-specific PCR was carried out to detect Chlamydia trachomatis Neisseria gonorrhoeae and the "signalling" bacteria of bacterial vaginosis (BV) in the biofilm removed by vortexing. RESULTS: Sixty-eight percent of IUDs were used for more than 5 years, 32% were removed after 10 years in place. In 28% of the IUDs ≥ 3 different anaerobic species typically found in BV with or without other aerobic bacteria were found by culture method. Streptococcus agalactiae (14%) and Actinomyces spp. (18%) were also isolated frequently. The PCR detection of Gardnerella vaginalis, Atopobium vaginae, Mobiluncus spp. and Ureaplasma urealyticum were 62%, 32%, 23% and 16%, respectively. Seventy-six percent of the IUDs were PCR positive at least for one "signalling" bacterium of BV. C. trachomatis was detected by PCR only in one IUD together with other aerobic and anaerobic bacteria, while the presence of N. gonorrhoeae could not be confirmed from the biofilm of these removed devices. CONCLUSION: Sexually transmitted infections (STI)-related bacteria-except for one patient-were not detected on the IUDs removed due to different reasons including clinical symptoms of infection. Presence of any BV "signaling" anaerobic bacteria were detected in a much higher number in the biofilm of the removed IUDs by PCR-based method compared to use culture method (76 versus 28 samples). Different aerobic and anaerobic bacteria colonized an equal number of IUDs, independent of the time-period in place, which may be relevant, if the IUD is removed due to planned pregnancy or due to a fear from upper genital tract infection caused by anaerobic bacteria including Actinomyces spp.


Asunto(s)
Biopelículas/crecimiento & desarrollo , Dispositivos Intrauterinos/efectos adversos , Dispositivos Intrauterinos/microbiología , Infecciones del Sistema Genital/tratamiento farmacológico , Infecciones del Sistema Genital/etiología , Vaginosis Bacteriana/tratamiento farmacológico , Vaginosis Bacteriana/etiología , Adulto , Anciano , Femenino , Humanos , Persona de Mediana Edad , Infecciones del Sistema Genital/diagnóstico , Infecciones del Sistema Genital/microbiología , Factores de Tiempo , Vaginosis Bacteriana/diagnóstico , Vaginosis Bacteriana/microbiología , Adulto Joven
14.
PLoS One ; 13(7): e0201003, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-30036385

RESUMEN

BACKGROUND: Hormonal contraception has been associated with a reduced risk of vaginal dysbiosis, which in turn has been associated with reduced prevalence of sexually transmitted infections (STIs), including HIV. Vaginal rings are used or developed as delivery systems for contraceptive hormones and antimicrobial drugs for STI and HIV prevention or treatment. We hypothesized that a contraceptive vaginal ring (CVR) containing oestrogen enhances a lactobacilli-dominated vaginal microbial community despite biomass accumulation on the CVR's surface. METHODS: We enrolled 120 women for 12 weeks in an open-label NuvaRing® study at Rinda Ubuzima, Kigali, Rwanda. Vaginal and ring microbiota were assessed at baseline and each ring removal visit by Gram stain Nugent scoring (vaginal only), quantitative PCR for Lactobacillus species, Gardnerella vaginalis and Atopobium vaginae, and fluorescent in situ hybridization to visualize cell-adherent bacteria. Ring biomass was measured by crystal violet staining. RESULTS: Bacterial vaginosis (BV) prevalence was 48% at baseline. The mean Nugent score decreased significantly with ring use. The presence and mean log10 concentrations of Lactobacillus species in vaginal secretions increased significantly whereas those of G. vaginalis and presence of A. vaginae decreased significantly. Biomass accumulated on the CVRs with a species composition mirroring the vaginal microbiota. This ring biomass composition and optical density after crystal violet staining did not change significantly over time. CONCLUSIONS: NuvaRing® promoted lactobacilli-dominated vaginal microbial communities in a population with high baseline BV prevalence despite the fact that biomass accumulated on the rings.


Asunto(s)
Dispositivos Anticonceptivos Femeninos/efectos adversos , Dispositivos Anticonceptivos Femeninos/microbiología , Lactobacillus/fisiología , Vagina/microbiología , Vaginosis Bacteriana/epidemiología , Vaginosis Bacteriana/etiología , Adulto , Biomasa , Células Epiteliales/citología , Femenino , Humanos , Lactobacillus/citología , Lactobacillus/efectos de los fármacos , Estudios Longitudinales , Prevalencia , Rwanda , Vagina/citología , Vagina/efectos de los fármacos
15.
AIDS Care ; 30(11): 1351-1355, 2018 11.
Artículo en Inglés | MEDLINE | ID: mdl-29548268

RESUMEN

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. The analysis included 137 women in the four study groups with a median age of 39 years. Median BV prevalence by Nugent score was 45%, intermediate vaginal flora - 7% and normal vaginal flora - 48%. There was no statistically significant difference in the BV prevalence between the four study groups, p = 0.711. Threefold lower BV prevalence was found, assessed by Amsel criteria compared to Nugent score. Women with body mass index (BMI) < 20 had higher probability to have BV or intermediate vaginal flora, OR = 3.11, 95% CI (1.2-8.6), p = 0.025. The study found a high BV prevalence in the four study groups, related neither to HIV status, nor to Cu-IUD use. BV prevalence was associated only with low BMI. Thus, Cu-IUD could be a good contraceptive choice for HIV-positive women. Research in defining normal vaginal microbiota and improve diagnostic methods for BV should continue.


Asunto(s)
Infecciones por VIH/complicaciones , Dispositivos Intrauterinos de Cobre/efectos adversos , Vaginosis Bacteriana/epidemiología , Adulto , Estudios Transversales , Femenino , Humanos , Prevalencia , Tailandia , Vaginosis Bacteriana/etiología
16.
Sex Transm Infect ; 94(1): 75-77, 2018 02.
Artículo en Inglés | MEDLINE | ID: mdl-27645157

RESUMEN

OBJECTIVES: The study aimed to test if there was an association between prevalent bacterial vaginosis (BV) and women reporting that their partner had other partners at the same time (partner concurrency). This association has not been assessed in a longitudinal cohort. METHODS: The Longitudinal Study of Vaginal Flora recruited a cohort of 3620 non-pregnant women aged 15-44 years who presented for routine primary healthcare at 12 clinics in Birmingham, Alabama. Behavioural questionnaires and vaginal smears were obtained quarterly for a year and BV was defined by a Nugent score 7 or higher as well as Amsel criteria. Mixed effects logistic regression was used to assess the relationship between prevalent BV and reporting that one's partner had other partners in the preceding 3-6 months time interval. RESULTS: Nugent score prevalent BV was associated with both reporting that one's partner definitely (adjusted OR (aOR) 1.5; 95% CI 1.2 to 1.8) and possibly (aOR 1.5; 95% CI 1.2 to 1.8) engaged in partner concurrency in the preceding 3-6 months time period. Prevalent BV diagnosed by Amsel criteria was similar. CONCLUSIONS: A diagnosis of prevalent BV was associated with reporting that one's partner possibly or definitely engaged in partner concurrency.


Asunto(s)
Conducta Sexual/estadística & datos numéricos , Parejas Sexuales , Vaginosis Bacteriana/epidemiología , Adolescente , Adulto , Alabama/epidemiología , Estudios de Cohortes , Factores de Confusión Epidemiológicos , Femenino , Humanos , Modelos Logísticos , Estudios Longitudinales , Prevalencia , Factores de Riesgo , Conducta Sexual/psicología , Encuestas y Cuestionarios , Vagina/microbiología , Vaginosis Bacteriana/diagnóstico , Vaginosis Bacteriana/etiología , Adulto Joven
17.
Eur J Contracept Reprod Health Care ; 22(5): 344-348, 2017 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-28849960

RESUMEN

OBJECTIVE: The study assessed the risk of bacterial vaginosis, Trichomonas vaginalis and Candida albicans infection among new users of either a combined oral contraceptive pill (COC) or the levonorgestrel-releasing intrauterine system (LNG-IUS). METHODS: This prospective observational study included 430 women, without active vaginitis at inclusion, who were divided into two groups according to their chosen method of contraception: COC group (n = 236) and LNG-IUS group (n = 194). Participants were examined for bacterial vaginosis, T. vaginalis and C. albicans infection initially and then at 6 weeks, 6 months and 12 months after the start of contraceptive use. Data were collected and statistically analysed. RESULTS: The rates of acquisition of bacterial vaginosis, T. vaginalis and C. albicans infection during follow-up were significantly increased and comparable between the groups (p < .001) and decreased in frequency over time (p < .05). The rates of acquisition of bacterial vaginosis among COC users (Nugent score) were 24.6, 18.6 and 15.2% and among LNG-IUS users 20.6, 13.5 and 9.3% at 6 weeks, 6 months and 12 months, respectively (p < .001). Body mass index >25 kg/m2, history of bacterial vaginosis, history of sexually transmitted infection, vaginal douching more than five times per week and coital frequency more than five times per week were strong risk factors for acquisition of bacterial vaginosis during the follow-up period (p < .001). CONCLUSIONS: The use of COCs and LNG-IUS is associated with an increased, comparable risk of acquisition of bacterial vaginosis, T. vaginalis and C. albicans infections, which is greatest during initial use of the method but which improves over time.


Asunto(s)
Anticoncepción/efectos adversos , Anticonceptivos Femeninos/efectos adversos , Dispositivos Intrauterinos Medicados/efectos adversos , Levonorgestrel/efectos adversos , Vaginitis/etiología , Adulto , Candida albicans , Candidiasis/etiología , Candidiasis/microbiología , Candidiasis Vulvovaginal/etiología , Candidiasis Vulvovaginal/microbiología , Anticoncepción/métodos , Anticonceptivos Femeninos/administración & dosificación , Femenino , Humanos , Levonorgestrel/administración & dosificación , Estudios Prospectivos , Vaginitis por Trichomonas/etiología , Vaginitis por Trichomonas/microbiología , Trichomonas vaginalis , Vaginitis/microbiología , Vaginosis Bacteriana/etiología , Vaginosis Bacteriana/microbiología , Adulto Joven
18.
BMC Infect Dis ; 17(1): 338, 2017 05 12.
Artículo en Inglés | MEDLINE | ID: mdl-28494795

RESUMEN

BACKGROUND: Intravaginal practices (IVP) (cleansing or introducing products inside the vagina for hygiene, health or to please sexual partners) are common among women with HIV. IVP increase the risk of developing bacterial Vaginosis (BV), the most common genital infection associated with transmission of sexually transmitted infections and HIV. This study tested a pilot intervention to reduce IVP and BV in HIV infected women in Zambia. METHODS: One hundred twenty-eight HIV infected women engaging in IVP were randomized to two conditions: enhanced standard of care (n = 70) and experimental (n = 58) from May 1, 2013 to February 28, 2014. All participants received a brief educational counseling session on discontinuation of IVP, and those with BV, were provided with medical treatment for BV. Women in the experimental condition received an additional group-based, culturally tailored intervention. Participants completed questionnaires assessing sexual risk factors and IVP and were assessed for BV using Nugent criteria at baseline, 6 months and 12 months. RESULTS: At 12-month, the proportion of self-reported use of IVPs decreased in the experimental condition: soap (28% vs. 47%); cloth or a rag (19% vs. 38%); and traditional medicines (22% vs. 42%) (all p < 0.05)) compared with the enhanced standard of care condition. The prevalence of BV at 6 and 12 months did not differ by study condition but averaging over study condition, prevalence of BV decreased from 64.2% at baseline to 15.6% at 6 months (p < 0.01) and to 23.6% at 12 months (p = 0.15). Using an enhanced standard of care approach and an enhanced standard of care + a group intervention, IVP and BV decreased over time, but the experimental condition had greater reduction in self-reported use of IVP. CONCLUSIONS: Future studies should address interventions in communities with high burden of IVP, BV and HIV. Interventions that could be administered during routine medical care and decrease IVP and BV are needed, and should be considered part of women's health programs. TRIAL REGISTRATION NUMBER: NCT03134924 (retrospectively registered 21st April 2017).


Asunto(s)
Infecciones por VIH/complicaciones , Vaginosis Bacteriana/prevención & control , Adulto , Terapia Conductista , Femenino , Infecciones por VIH/psicología , Humanos , Higiene , Proyectos Piloto , Factores de Riesgo , Conducta Sexual , Parejas Sexuales , Encuestas y Cuestionarios , Vagina/microbiología , Ducha Vaginal/efectos adversos , Ducha Vaginal/psicología , Vaginosis Bacteriana/etiología , Vaginosis Bacteriana/psicología , Salud de la Mujer , Adulto Joven , Zambia
19.
PLoS One ; 12(3): e0173637, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-28278277

RESUMEN

BACKGROUND: Bacterial vaginosis (BV) affects a third of women of reproductive age in the US and there is increasing evidence to suggest it may be sexually transmitted. This study aimed to extend and validate the findings of our earlier smaller qualitative study by exploring in detail women's views and experiences of the triggering factors associated with BV onset and recurrence. METHODS: Women aged 20-49, who had experienced one or more symptomatic episode of BV within 6 months, were opportunistically recruited to complete a 38-item questionnaire on their experience of BV. RESULTS: 103 women completed the questionnaire. Women were significantly more likely to report sexual than lifestyle factors triggered BV onset and recurrence (p<0.001). The top 3 factors women attributed to both BV onset and recurrence were identical-and all sexual. They included, in order: 1) unprotected sex; 2) sex with a new male partner; and 3) sex in general. The main lifestyle factors nominated included stress, diet, menstruation and the use of feminine hygiene products. While many women felt their BV had been transmitted through sexual contact (54%) and developed as a result of sexual activity (59%), few considered BV a sexually transmitted infection (STI) (10%). Despite this 57% felt partners should also be treated for BV. CONCLUSION: These data concur with our earlier qualitative findings that women believe BV is triggered by sexual activity. While many women felt BV was sexually transmitted and supported partner treatment, they did not consider BV an STI. This contradiction is likely due to information conveyed to women based on current guidelines. In the absence of highly effective BV treatments, this study highlights the need for guidelines to indicate there is scientific uncertainty around the pathogenesis of BV and to contain clear health messages regarding the evidence for practices shown to be associated with a reduced risk of BV (i.e. consistent condom use.


Asunto(s)
Bacterias/patogenicidad , Conducta Sexual , Parejas Sexuales/psicología , Enfermedades de Transmisión Sexual/complicaciones , Vagina/microbiología , Vaginosis Bacteriana/etiología , Vaginosis Bacteriana/psicología , Adolescente , Adulto , Femenino , Humanos , Persona de Mediana Edad , Investigación Cualitativa , Recurrencia , Factores de Riesgo , Encuestas y Cuestionarios , Adulto Joven
20.
Int J STD AIDS ; 28(5): 467-475, 2017 04.
Artículo en Inglés | MEDLINE | ID: mdl-27277555

RESUMEN

The objective of this study was to describe the impact of intense counseling to reduce vaginal hygiene practices and its effect on bacterial vaginosis. A secondary data analysis of the HIV Prevention Trials Network 035 study was undertaken, focusing on HIV-negative, nonpregnant women who were at least 18 years old, in seven African sites and one US site. At enrollment and during follow-up quarterly visits, vaginal hygiene practices were determined by face-to-face administration of a behavioral assessment questionnaire. Vaginal hygiene practices were categorized as insertion into the vagina of (1) nothing, (2) water only, and (3) other substances with or without water. Each practice was quantified by frequency and type/combination of inserted substances. At quarterly visits, diagnosis of bacterial vaginosis was made using the Nugent score. Trends for vaginal hygiene practices and bacterial vaginosis were evaluated using generalized estimating equation models. A total of 3087 participants from the HIV Prevention Trials Network 035 study were eligible for this analysis. At enrollment, 1859 (60%) reported recent vaginal hygiene practices. By one year, this figure had decreased to 1019 (33%) with counseling. However, bacterial vaginosis prevalence remained consistent across the study observation period, with 36%-38% of women testing positive for the condition ( p for trend = 0.27). Overall, those who reported douching with water only (AOR = 1.03, 95%CI: 0.94-1.13) and those who reported inserting other substances (AOR= 0.98, 95%CI: 0.88-1.09) in the past quarter were not more likely to have bacterial vaginosis compared to those who reported no insertions. However, in South Africa, an increase in bacterial vaginosis was seen among those who reported inserting other substances (AOR: 1.48, 95%CI: 1.17, 1.88). In conclusion, targeted counseling against vaginal hygiene practices resulted in change in self-reported behavior but did not have an impact on bacterial vaginosis diagnosis in all but one site.


Asunto(s)
Infecciones por VIH/prevención & control , Higiene , Ducha Vaginal/efectos adversos , Vaginosis Bacteriana/etiología , Adulto , Consejo , Femenino , Infecciones por VIH/epidemiología , Humanos , Prevalencia , Autoinforme , Sudáfrica/epidemiología , Vagina/microbiología , Ducha Vaginal/psicología , Vaginosis Bacteriana/epidemiología , Vaginosis Bacteriana/prevención & control
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