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Bardach A, Alconada T, Palermo C, Rojas-Roque C, Sandoval MM, Gomez J, Pinto T, Ciapponi A. Burden of Disease of Gonorrhoea in Latin America: Systematic Review and Meta-analysis. Infect Dis Ther 2023:10.1007/s40121-023-00814-0. [PMID: 37261611 DOI: 10.1007/s40121-023-00814-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 04/19/2023] [Indexed: 06/02/2023] Open
Abstract
INTRODUCTION Neisseria gonorrhoeae causes gonorrhoea, a globally neglected but increasing disease. This systematic review and meta-analysis reviewed the epidemiology and economic burden of gonorrhoea in Latin America and the Caribbean (LAC). METHODS We searched PubMed, EMBase, Cochrane Library, EconLIT, CINAHL, CRD, LILACS, Global Health, Global Dissertations and Theses, SciELO, Web of Science databases, countries' ministries of health, and the IHME's Global Burden of Disease databases. Studies published in the last 10 years (20 years for economic studies) were included if conducted in any LAC country, without language restrictions. The main outcome measures were incidence/prevalence, proportion of co-infections, case fatality rates, specific mortality/hospitalisation rates, direct/indirect costs, and impact of gonorrhoea on quality of life. To assess evidence quality, we used a checklist developed by the US National Heart, Lung, and Blood Institute for observational studies and trial control arms, the Cochrane Effective Practice Organization of Care Group tool for randomised controlled trials, and the CICERO checklist for economic studies. RESULTS We identified 1290 articles; 115 included epidemiological studies and one included an economic study. Ministry of health data from Argentina, Brazil, Chile, Colombia, Mexico, and Uruguay were identified. Gonorrhoea prevalence was 1.46% (95% confidence interval [CI] 1.00-2.00%) from 48 studies and 5.68% (95% CI 4.23-7.32%) from 58 studies for non-high-risk and high-risk populations, respectively. Cumulative incidence for the high-risk population was 2.05 cases per 100 persons/year. Few published studies were rated as "good" in the risk of bias assessments. Variations in the methodology of the sources and limited information found in the countries' surveillance systems hinder the comparison of data. CONCLUSION The burden of gonorrhoea in LAC is not negligible. Our results provide public health and clinical decision support to assess potential interventions to prevent gonorrhoea. TRIAL REGISTRATION The protocol is registered on PROSPERO (CRD42021253342). The study was funded by GlaxoSmithKline Biologicals SA (GSK study identifier VEO-000025).
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Affiliation(s)
- Ariel Bardach
- Institute for Clinical Effectiveness and Health Policy, Dr Emilio Ravignani 2024, C1014CPV, Buenos Aires, Argentina
| | - Tomás Alconada
- Institute for Clinical Effectiveness and Health Policy, Dr Emilio Ravignani 2024, C1014CPV, Buenos Aires, Argentina
| | - Carolina Palermo
- Institute for Clinical Effectiveness and Health Policy, Dr Emilio Ravignani 2024, C1014CPV, Buenos Aires, Argentina
| | - Carlos Rojas-Roque
- Institute for Clinical Effectiveness and Health Policy, Dr Emilio Ravignani 2024, C1014CPV, Buenos Aires, Argentina
| | - María Macarena Sandoval
- Institute for Clinical Effectiveness and Health Policy, Dr Emilio Ravignani 2024, C1014CPV, Buenos Aires, Argentina
| | | | | | - Agustin Ciapponi
- Institute for Clinical Effectiveness and Health Policy, Dr Emilio Ravignani 2024, C1014CPV, Buenos Aires, Argentina.
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Tandon D, Patil AD, Pramanik JM, Kerkar S, Munne K, Begum S, Tryambake V, Surve S. Cross sectional study to evaluate microbiological spectrum of RTI/STI and co-infections among women with cervicitis or cervico-vaginitis from a community clinic in Mumbai. Indian J Med Microbiol 2022; 40:144-146. [PMID: 34772538 DOI: 10.1016/j.ijmmb.2021.10.003] [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: 05/16/2021] [Revised: 09/22/2021] [Accepted: 10/07/2021] [Indexed: 11/27/2022]
Abstract
Cervicitis is an inflammatory condition of cervix, when presented along with vaginal discharge; it is termed as cervico-vaginitis. These can be infective, hence important to diagnose due to risk of spreading to upper genital tract. This cross-sectional study was undertaken to evaluate the microbiological spectrum in cervicitis or cervico-vaginitis among 100 sexually active women by Gram stain and Multiplex Real time polymerase chain reaction. Bacterial vaginosis 21(21%) was the most common RTI. Among STIs, genital mycoplasmas were the predominant infections hence further research is required to understand their pathogenesis.
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Affiliation(s)
- Deepti Tandon
- ICMR- National Institute for Research in Reproductive Health (NIRRH), J.M. Street, Parel, Mumbai, 400012, India.
| | - Anushree D Patil
- ICMR- National Institute for Research in Reproductive Health (NIRRH), J.M. Street, Parel, Mumbai, 400012, India
| | - Jayanti Mania Pramanik
- ICMR- National Institute for Research in Reproductive Health (NIRRH), J.M. Street, Parel, Mumbai, 400012, India.
| | - Shilpa Kerkar
- ICMR- National Institute for Research in Reproductive Health (NIRRH), J.M. Street, Parel, Mumbai, 400012, India.
| | - Kiran Munne
- ICMR- National Institute for Research in Reproductive Health (NIRRH), J.M. Street, Parel, Mumbai, 400012, India.
| | - Shahina Begum
- ICMR- National Institute for Research in Reproductive Health (NIRRH), J.M. Street, Parel, Mumbai, 400012, India.
| | - Varsha Tryambake
- ICMR- National Institute for Research in Reproductive Health (NIRRH), J.M. Street, Parel, Mumbai, 400012, India.
| | - Suchitra Surve
- ICMR- National Institute for Research in Reproductive Health (NIRRH), J.M. Street, Parel, Mumbai, 400012, India
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Roy A, Dadwal R, Yadav R, Singh P, Krishnamoorthi S, Dasgupta A, Chakraborti A, Sethi S. Association of Chlamydia trachomatis, Neisseria gonorrhoeae, Mycoplasma genitalium and Ureaplasma species infection and organism load with cervicitis in north Indian population. Lett Appl Microbiol 2021; 73:506-514. [PMID: 34089202 DOI: 10.1111/lam.13520] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 05/29/2021] [Accepted: 06/01/2021] [Indexed: 11/29/2022]
Abstract
Cervicitis is predominantly caused by Neisseria gonorrhoeae and Chlamydia trachomatis, which accounts for almost half of all the cases of cervicitis. The role of newer organisms like Mycoplasma genitalium and Ureaplasma sp. and association of bacterial load with cervicitis are also not well established. So the study aimed to determine the relative frequency of these organisms and their load in association with cervicitis cases from north India. A case-control study involving 300 women was conducted using quantitative real-time PCR from endocervical swabs for identification of organisms and quantification of bacterial load. Among 150 cervicitis cases, C. trachomatis, N. gonorrhoeae, M. genitalium and Ureaplasma parvum were detected in 5 (3·3%), 10 (6·6%), 37(24·6%) and 47 (31·3%) respectively. Old age (<0·001, chi-squared test) and irregular menstrual cycles (<0·001, chi-squared test) were significantly associated with cervicitis. M genitalium was the only organism to be associated significantly with cervicitis with regard to age (<0·031) and symptoms like discharge (P < 0·033, chi-squared test) and dysuria (P < 0·044, chi-squared test) in multivariate analysis. Our finding suggests that the bacterial load of these organisms is not significantly associated with cervicitis. However, we found significant association of M. genitalium infection with clinical characteristics of cervicitis cases.
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Affiliation(s)
- A Roy
- Department of Medical Microbiology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - R Dadwal
- Department of Medical Microbiology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - R Yadav
- Department of Medical Microbiology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - P Singh
- Department of Microbiology, All India Institute of Medical Sciences (AIIMS), Bhopal, Madhya Pradesh, India
| | - S Krishnamoorthi
- Department of Microbiology, All India Institute of Medical Sciences (AIIMS), Bathinda, Punjab, India
| | - A Dasgupta
- Department of Biochemistry, Sharda University, Greater Noida, Uttar Pradesh, India
| | - A Chakraborti
- Department of Experimental Medicine and Biotechnology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - S Sethi
- Department of Medical Microbiology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
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Nkwabong E. What are the most common sexually transmitted bacteria in women with cervico-vaginitis nowadays? Indian J Sex Transm Dis AIDS 2020; 41:39-42. [PMID: 33062980 PMCID: PMC7529187 DOI: 10.4103/ijstd.ijstd_143_15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Revised: 06/08/2018] [Accepted: 12/03/2019] [Indexed: 11/06/2022] Open
Abstract
Introduction: Cervico-vaginitis is usually the initial infection which, when undiagnosed, can evolve to salpingitis with tubal infertility, ectopic pregnancy, and chronic pelvic pain as consequences. This study aimed at identifying the sociodemographic profile and clinical presentation of women diagnosed with cervico-vaginitis, as well as the microorganisms isolated. Materials and Methods: This cross-sectional, descriptive study was carried out between October 1, 2013, and March 31, 2014. Women diagnosed with cervico-vaginitis were recruited. The main variables recorded were maternal age, occupation, marital status, number of sexual partners, clinical presentation, and microorganisms identified. Data were analyzed using SPSS 20.0. Results: The mean maternal age was 25.5 ± 5.6 years. Students were more represented (41.1%), 66% were single, and 69.6% had ≥2 sexual partners. The most frequent symptom was abnormal vaginal discharge (100%). The most frequent microorganisms isolated were genital tract mycoplasmas (67.9%) and Chlamydia trachomatis (55.3%). Discussion: Acute cervico-vaginitis is common among young, single women with multiple sexual partners. Genital tract mycoplasmas were the commonest germs isolated followed by Chlamydia trachomatis. Conclusion: Cervico-vaginitis is very common in our setting. Screening for genital tract mycoplasmas should be the first to be requested to women with cervico-vaginitis.
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Affiliation(s)
- Elie Nkwabong
- Department of Obstetrics and Gynecology, Faculty of Medicine and Biomedical Sciences, University Teaching Hospital, University of Yaoundé I, Yaoundé, Cameroon
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Li M, Li L, Wang R, Yan SM, Ma XY, Jiang S, Gao TY, Yao Y, Li B. Prevalence and risk factors for bacterial vaginosis and cervicitis among 511 female workers attending gynecological examination in Changchun, China. Taiwan J Obstet Gynecol 2019; 58:385-389. [PMID: 31122530 DOI: 10.1016/j.tjog.2018.11.036] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/16/2018] [Indexed: 11/28/2022] Open
Abstract
OBJECTIVE This study aims to identify the prevalence of bacterial vaginosis (BV) and cervicitis among 511 female workers attending gynecological examination and determine the risk factors for bacterial vaginosis and cervicitis. MATERIALS AND METHODS This study enrolled 511 female workers attending gynecological examination in Changchun Obstetrics-Gynaecology Hospital in Changchun city from January 1,2015 to December 31, 2015. A structured questionnaire was designed to survey the general demographic characteristics, living habits and health status of the participants. Gynecological examinations were performed to assess the presence of bacterial vaginosis and cervicitis. Univariate and multivariate logistic regression analysis were used to identify risk factors associated with bacterial vaginosis and cervicitis. RESULTS Of 511 female workers (median age, 40 years) were enrolled in our study, the prevalence of BV was 5.3%, and the prevalence of cervicitis was 22.1%. In multivariable analysis, women of specific ethnic groups had a higher odds ratio of BV (OR = 3.332, 95%CI 1.014-10.955) and premenopausal women had a reduced odds ratio of BV(OR = 0.162, 95%CI 0.061-0.425). Higher levels of education were associated with a reduced odds ratio of cervicitis (OR = 0.248, 95%CI 0.080-0.772). CONCLUSIONS BV and cervicitis were both common among female workers. Improving women's educational level should be concerned so as to reduce the prevalence of cervicitis.
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Affiliation(s)
- Meng Li
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, China
| | - Ling Li
- Changchun Obstetrics-Gynecology Hospital, Changchun, China
| | - Rui Wang
- Department of Thoracic Surgery, The First Affiliated Hospital of Jilin University, Changchun, China
| | - Shou-Meng Yan
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, China
| | - Xiao-Yu Ma
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, China
| | - Shan Jiang
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, China
| | - Tian-Yu Gao
- Changchun Health Supervision Institute, Changchun, China
| | - Yan Yao
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, China
| | - Bo Li
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, China.
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Páez‐Canro C, Alzate JP, González LM, Rubio‐Romero JA, Lethaby A, Gaitán HG. Antibiotics for treating urogenital Chlamydia trachomatis infection in men and non-pregnant women. Cochrane Database Syst Rev 2019; 1:CD010871. [PMID: 30682211 PMCID: PMC6353232 DOI: 10.1002/14651858.cd010871.pub2] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
BACKGROUND The genital infection caused by Chlamydia trachomatis (CT) is a common sexually transmitted infection (STI) globally. The infection is mainly asymptomatic in women, thus it can produce infertility and chronic pelvic pain. In men infection is mainly symptomatic, but can evolve to prostatitis. Clinical practice guidelines for CT urogenital infections do not give any specific recommendation about which antibiotic use as first option OBJECTIVES: To assess the efficacy and safety of antibiotic treatment for CT genital infection in men and non-pregnant women. SEARCH METHODS The Cochrane Sexually Transmitted Infections' (STI) Information Specialist developed the electronic searches in electronic databases (CENTRAL, MEDLINE, Embase and LILACS), and trials registers. We searched studies published from inception to June 2018. SELECTION CRITERIA We included parallel, randomised controlled trials (RCTs) of men, and sexually-active, non-pregnant women with CT infection (urethritis or uterine cervicitis or asymptomatic), diagnosed by cell culture for CT, nucleic acid amplification tests (NAAT) or antigen-based detection methods, who had been treated with any of the antibiotic regimens recommended by any of the updated to 2013 CT Guidelines. DATA COLLECTION AND ANALYSIS Four review authors screened evidence according to selection criteria and independently extracted data and assessed risk of bias. Two authors developed the 'Summary of findings' tables. We used a fixed-effect meta-analysis model for combining data where it was reasonable to assume that studies were estimating the same underlying treatment effect. We estimated the pooled risk ratio in order to establish the effects of the comparisons. Our primary outcomes were microbiological failure and adverse events, and our secondary outcomes were clinical failure, antimicrobial resistance and reinfection. MAIN RESULTS We selected 14 studies ( 2715 participants: 2147 (79.08%) men and 568 (20.92%) women). The studies were conducted mainly at STD clinics. Sample sizes ranged from 71 to 606 participants; follow-up was 29.7 days on average.For the comparison: azithromycin single dose versus doxycycline once or twice daily for 7 days, in men treated for CT, the risk of microbiological failure was higher in the azithromycin group (RR 2.45, 95% CI 1.36 to 4.41; participants = 821; studies = 9; moderate-quality evidence), but regarding clinical failure, the results showed that the effect is uncertain (RR 0.94, 95% CI 0.43 to 2,05; I² = 55%; participants = 525; studies = 3; low-quality evidence). Regarding adverse events (AE) in men there could be little or no difference between the antibiotics (RR 0.83, 95% CI 0.67 to 1.02; participants = 1424; studies = 6; low-quality evidence). About women treated for CT, the effect on microbiological failure was uncertain (RR = 1.71, 95% CI 0.48 to 6.16; participants = 338; studies = 5; very low-quality evidence). There were no studies assessing clinical failure or adverse events in women, however, we found that azithromycin probably has fewer adverse events in both genders (RR 0.83, 95% CI 0.71 to 0.98; I² = 0%; participants = 2261; studies = 9; moderate-quality evidence).For the second comparison: doxycycline compared to ofloxacin, for men treated for CT the effect on microbiological failure was uncertain (RR 8.53, 95% CI 0.43 to 167.38, I² not applicable; participants = 80; studies = 2; very low-quality evidence), as also it was on clinical failure (RR 0.85, 95% CI 0.28 to 2.62; participants = 36; studies = 1; very low-quality evidence). The effect of in women on clinical failure was uncertain (RR 0.94, 95% CI 0.39 to 2.25; I² = 39%; participants = 127; studies = 2; very low-quality evidence).Regarding adverse events, the effect in both men and women was uncertain (RR 1.02 95% CI 0.66 to 1.55; participants = 339 studies = 3; very low-quality evidence). The effect on microbiological failure in women and in men and women together, the effect on microbiological failure was not estimable. The most frequently AE reported were not serious and of gastrointestinal origin.No studies assessed antimicrobial resistance or reinfection in either comparison. AUTHORS' CONCLUSIONS In men, regimens with azithromycin are probably less effective than doxycycline for microbiological failure, however, there might be little or no difference for clinical failure. For women, we are uncertain whether azithromycin compared to doxycycline increases the risk of microbiological failure. Azithromycin probably slightly reduces adverse events compared to doxycycline in men and women together but may have little difference in men alone. We are uncertain whether doxycycline compared to ofloxacin reduces microbiological failure in men or women alone, or men and women together, nor if it reduces clinical failure or adverse events in men or women.Based on the fact that women suffer mainly asymptomatic infections, and in order to test the effectiveness and safety of the current recommendations (azithromycin, doxycycline and ofloxacin), for CT infection, especially in low and middle income countries, future RCTs should be designed and conducted to include a large enough sample size of women, and with low risk of bias. It is also important that future RCTs include adherence, CT resistance to antibiotic regimens, and risk of reinfection as outcomes to be measured. In addition, it is important to conduct a network meta-analysis in order to evaluate all those studies that included in one arm only the current antibiotic treatments for CT infection that are recommended by the updated clinical practice guidelines.
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Affiliation(s)
- Carol Páez‐Canro
- Faculty of Medicine, Universidad Nacional de ColombiaClinical Research InstituteBogotaColombia
| | - Juan Pablo Alzate
- Fundación Universitaria de Ciencias de la Salud, Hospital Infantil de San JoséResearch UnitBogotaColombia
| | - Lina M González
- Fundación Universitaria de Ciencias de la Salud ‐ Hospital Infantil de San José.Research UnitCra. 52 #67A‐71BogotáCundinamarcaColombia111411
| | - Jorge Andres Rubio‐Romero
- Faculty of Medicine, Universidad Nacional de ColombiaDepartment of Obstetrics and GynecologyCiudad UniversitariaBogotaColombia
| | - Anne Lethaby
- University of AucklandDepartment of Obstetrics and GynaecologyPrivate Bag 92019AucklandNew Zealand1142
| | - Hernando G Gaitán
- Faculty of Medicine, Universidad Nacional de ColombiaDepartment of Obstetrics and GynecologyCiudad UniversitariaBogotaColombia
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Stewart J, Heitzinger K, Pollett S, Calderón M, Alarcón J, Ton TGN, Zunt JR. The Changing Epidemiology of Human T-Cell Lymphotropic Virus Type 1 Infection in Peruvian Female Sex Workers, 1993-2010. Am J Trop Med Hyg 2016; 96:373-379. [PMID: 27879458 DOI: 10.4269/ajtmh.16-0014] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Accepted: 10/10/2016] [Indexed: 11/07/2022] Open
Abstract
Human T-cell lymphotropic virus type 1 (HTLV-1) was the first human retrovirus to be reported and is associated with neoplastic, neurological, autoimmune, and infectious complications. HTLV-1 is endemic in Peru, with the highest prevalence reported among commercial sex workers. Seroprevalence data collected from Peruvian female sex workers (FSWs) working in Callao over three study periods between 1993 and 2010 were used to examine the secular trend in HTLV-1 prevalence. Between 1993 and 2010, the prevalence of HTLV-1 decreased significantly from 14.5% to 3.1% (P < 0.01). The prevalence of HTLV-1 seropositivity differed significantly by birth cohort (1922-1959, 1960-1969, 1970-1979, and 1980-1992), and for each of the four birth cohorts, the prevalence did not significantly decrease by screening year (P > 0.07). There were no cases of HTLV-1 detected among FSW born after 1979 (N = 224). Participant characteristics associated with HTLV-1 seropositivity were birth in the Andes Mountains region, age, increased time in sex work, younger age of starting sex work, and human immunodeficiency virus (HIV) seropositivity. The secular trend in declining prevalence persisted after adjustment for age, time in sex work, place of birth, and HIV serostatus, with the odds of HTLV-1 infection decreasing approximately 16% per year (adjusted odds ratio = 0.84, 95% confidence interval = 0.78, 0.90). The increasing use of condoms by later birth cohorts noted in our analysis, as well as the increasing availability of free condoms provided by the Peruvian government-which started in the late 1980s before this study-may have been responsible for declining HTLV seroprevalence.
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Affiliation(s)
- Jenell Stewart
- Department of Internal Medicine, University of Washington, Seattle, Washington.
| | - Kristen Heitzinger
- Department of Epidemiology, University of Washington, Seattle, Washington
| | - Simon Pollett
- Marie Bashir Institute for Infectious Diseases and Biosecurity, University of Sydney, Sydney, Australia
| | - Martha Calderón
- Clínica de Salud Pública "Alberto Barton" del Callao, Callao, Peru
| | - Jorge Alarcón
- Instituto de Medicina Tropical, Universidad Nacional Mayor de San Marcos, Lima, Peru
| | - Thanh G N Ton
- Department of Global Health and Neurology, University of Washington, Seattle, Washington
| | - Joseph R Zunt
- Department of Internal Medicine, University of Washington, Seattle, Washington.,Department of Epidemiology, University of Washington, Seattle, Washington.,Department of Global Health and Neurology, University of Washington, Seattle, Washington
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Liu L, Cao G, Zhao Z, Zhao F, Huang Y. High bacterial loads of Ureaplasma may be associated with non-specific cervicitis. ACTA ACUST UNITED AC 2014; 46:637-41. [PMID: 25017795 DOI: 10.3109/00365548.2014.922696] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND Ureaplasma parvum and Ureaplasma urealyticum are commonly found in the cervix of women with non-chlamydial and non-gonococcal cervicitis or non-specific cervicitis (NSC). However their contribution to the aetiology of NSC is controversial. METHODS U. parvum and U. urealyticum were identified and quantified in cervical swabs collected from 155 women with NSC and 312 controls without NSC, using real-time PCR. The relative bacterial quantification was then calculated using the Ureaplasma copy number divided by the number of host cells; this is important for the correction of bias linked to the number of cells harvested in different swabs. RESULTS Ureaplasma was detected in 58.7% (91/155) of NSC patients: U. parvum in 30.3%, U. urealyticum in 16.1%, and mixed infection in 12.3%. It was also detected in 54.5% (170/312) of controls: U. parvum in 33.0%, U. urealyticum in 11.5%, and mixed infection in 9.9%. There were no significant differences for U. parvum, U. urealyticum, or mixed infection between the 2 groups (p > 0.05). However, both biovars were present at higher concentrations in NSC patients than in controls (p < 0.05). Using >10 copies/1000 cells as a reference, the positive rate of U. parvum in NSC patients was 16.1%, significantly higher than that in controls at 5.1% (relative risk 3.145, p < 0.05); positive rates of U. urealyticum in NSC patients and controls were 28.4% and 8.7%, respectively, with a statistically significant difference (relative risk 3.131, p < 0.05). CONCLUSIONS Ureaplasma can adhere to host cells, colonize, internalize, and subsequently produce pathological lesions. A high density of Ureaplasma in the cervix may be associated with the aetiology of NSC.
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Affiliation(s)
- Lu Liu
- From the Department of Laboratory Medicine, Obstetrics and Gynaecology Hospital of Fudan University , Shanghai , China
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Abstract
Cervicitis has been described by some as the female counterpart of urethritis in men. Over the years a number of clinical and microscopy-based definitions have been suggested in the literature. Clinical manifestations include mucopurulent discharge from the cervix, cervical friability (easy bleeding from the cervix with passage of a swab) and cervical ectopy. Microscopic definitions involving the use of Gram stain of cervical secretions have included either more than 10 white blood cells (WBCs) or more than 30 WBCs per high-power field. Combinations of these clinical and microscopic findings have been used in attempts to increase the accuracy of cervicitis diagnosis. When cervicitis was initially recognized as a clinical entity, several investigators reported the primary pathogens causing cervicitis as Neisseria gonorrhoeae and Chlamydia trachomatis. It is now well established that most cases of cervicitis are not caused by these two organisms. Most cases of cervicitis are of unknown etiology.
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Affiliation(s)
- Stephanie N Taylor
- Section of Infectious Diseases, Louisiana State University Health Sciences Center, 517 N. Rampart St., New Orleans, LA, 70112, USA,
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