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[Persistence of Chlamydia trachomatis in endometrium and peritoneal fluid of infertile patients with negative cervical culture].

BACKGROUND: Chlamydia trachomatis infection is considered a public health problem due to its high prevalence, and because is asymptomatic in 70% of women and provokes reproductive sequelae when it is not detected and treated timely. OBJECTIVE: To search for C. trachomatis in endometrium and peritoneal fluid of infertile women without detection of this pathogen in cervical secretions. PATIENTS AND METHOD: A retrospective and cross-sectional study was done in 38 patients with infertility only 18 showed peritoneal fluid infection and/or endometrial infection, eight of them were negative for the…

Роль суринамских мигрантов в передаче хламидии трахомата между Парамарибо, Суринамом и Амстердамом, Нидерланды.

Крупные суринамские мигранты в Нидерландах представляют собой одну из основных групп риска в связи с инфекцией хламидии трахомати. В Суринаме, бывшей голландской колонии, также широко распространены трахоматисы. Суринамские мигранты часто путешествуют между Нидерландами и Суринамом. Наша цель заключалась в том, чтобы оценить, являются ли суринамские мигранты в Нидерландах связующим звеном, облегчающим передачу C. trachomatis между Суринамом и Нидерландами. Если да, то могут потребоваться совместные профилактические кампании с участием обеих стран. В период с марта 2008 года по июль 2010 года у

Совпадение в аннотации оригинала
The large Surinamese migrant population in the Netherlands is a major risk group for urogenital Chlamydia trachomatis infection. Suriname, a former Dutch colony, also has a high prevalence of C. trachomatis. Surinamese migrants travel extensively between the Netherlands and Suriname. Our objective was to assess whether the Surinamese migrants in the Netherla…

Cobas® 4800: a fully automated system for the detection of Chlamydia trachomatis and Neisseria gonorrhoeae.

Chlamydia trachomatis and Neisseria gonorrhoeae (CT/NG) are the most common sexually transmitted bacterial infections globally and account for the majority of the infections monitored by public health surveillance systems. Therefore, access to diagnostic tools that facilitate identification of these infections is critical to sexually transmitted infection control efforts. The cobas(®) 4800 system is a fully automated system that incorporates nucleic acid extraction and real-time PCR. The cobas 4800 CT/NG assay is one component of the test menu available on this system. The cobas 4800 CT/NG ass…

Plasmid deficiency in urogenital isolates of Chlamydia trachomatis reduces infectivity and virulence in a mouse model.

We hypothesized that the plasmid of urogenital isolates of Chlamydia trachomatis would modulate infectivity and virulence in a mouse model. To test this hypothesis, we infected female mice in the respiratory or urogenital tract with graded doses of a human urogenital isolate of C. trachomatis, serovar F, possessing the cognate plasmid. For comparison, we inoculated mice with a plasmid-free serovar F isolate. Following urogenital inoculation, the plasmid-free isolate displayed significantly reduced infectivity compared with the wild-type strain with the latter yielding a 17-fold lower infectiou…

Chlamydia trachomatis infection in HIV-infected women: need for screening by a sensitive and specific test.

Reproductive tract infection (RTIs)/sexually transmitted infections (STIs) are recognized as a major public health problem, particularly due to their relationship with HIV infection. Early detection and treatment of Chlamydia trachomatis infection (CTI) among HIV-infected and HIV-uninfected women may impact heterosexual HIV transmission. A total of 120 participants were enrolled: 30 HIV seropositive women with symptoms of RTIs, 30 HIV seropositive women without symptoms of RTIs, 30 HIV seronegative women with symptoms of RTIs, and 30 HIV seronegative women without symptoms of RTIs. One endocer…

Differences in infectivity and induction of infertility: a comparative study of Chlamydia trachomatis strains in the murine model.

Chlamydia trachomatis, although commonly asymptomatic in women, can result in chronic sequelae, such as pelvic inflammatory disease, ectopic pregnancy and infertility. However, a clear relationship has not been determined between specific serovars and the ability to lead to upper genital tract infection or infertility. Thus, in order to investigate differences in pathogenicity, C3H/HeN mice were infected in the ovarian bursa with the C. trachomatis strains D (UW-3/Cx), F (N.I.1), F (IC-Cal-3) and E (Bour). Differences both in the amount of vaginal shedding as well as subsequent fertility rates…

Insights into the timing of repeated testing after treatment for Chlamydia trachomatis: data and modelling study.

OBJECTIVES: The objective of this study was to determine the optimal time interval for a repeated Chlamydia trachomatis (chlamydia) test. METHODS: The authors used claims data for US women aged 15-25 years who were enrolled in commercial health insurance plans in the MarketScan database between 2002 and 2006. The authors determined the numbers of initial positive and negative tests that were followed by a repeated test and the positivity of repeated tests. The authors used a dynamic transmission pair model that reflects the partnership formation and separation processes in 15-25 year olds to …

Differing effects of azithromycin and doxycycline on cytokines in cells from Chlamydia trachomatis-infected women.

Chlamydial infection of the lower genital tract usually spreads to the upper genital tract and is then responsible for more serious consequences, such as infertility, ectopic pregnancy, pelvic pain, and pelvic inflammatory disease. Genital infection with Chlamydia trachomatis and the resulting cytokine response largely determines the outcome of infection and disease. To date, studies showing comparative effects of azithromycin and doxycycline treatment for C. trachomatis infection in women with reproductive sequelae like infertility and their effect on immune molecules like cytokines are lacki…

Screening for Chlamydia trachomatis in secondary schools, family planning and occupational health centres in Luxembourg.

BACKGROUND: We conducted a prospective pilot screening study in three settings in Luxembourg where routine urine testing is carried out independently for other purposes with a short sexual behaviour questionnaire to estimate prevalence and determine risk factors of urogenital Chlamydia trachomatis infection. METHODS: Screening was offered to sexually active volunteer participants aged less than 25 years in three settings: i) women in three family planning centres (FPC), ii) young women and men in 29 secondary schools and iii) women and men in an occupational health centre (OHC) for newly recr…

Chlamydia trachomatis and rubella antibodies in women with full-term deliveries and women with abortion in Baghdad.

The seroprevalences of Chlamydia trachomatis and rubella IgG antibodies were measured in women with full-term deliveries (n = 198) and with abortion (n = 79) in a hospital in Baghdad city, Iraq. Positive rubella antibody titres were found in 42.9% of mothers with full-term deliveries and 34.2% with abortion. C. trachomatis infection was found in 13.6% of mothers with full-term deliveries and 6.4% with abortion, with a significant difference in mean antibody levels between the 2 groups. Routine screening for C. trachomatis and rubella is needed for pregnant women in Iraq.

The molecular epidemiology of ocular Chlamydia trachomatis infections in Western Australia: implications for trachoma control.

We studied the serovar distribution of Chlamydia trachomatis in patients with clinical eye disease in Western Australia. Most disease occurred in indigenous communities and was caused by trachoma serovars Ba and C. Serovar Ba was genetically homogeneous throughout Western Australia and identical to strains previously described in indigenous communities in Northern Territory. This finding probably results from movement of these populations, and suggests that a widely coordinated, rather than local or regional, approach is needed to control trachoma in mobile populations. Serovar C strains withi…

Chlamydia trachomatis polymorphic membrane protein D is an oligomeric autotransporter with a higher-order structure.

Chlamydia trachomatis is a globally important obligate intracellular bacterial pathogen that is a leading cause of sexually transmitted disease and blinding trachoma. Effective control of these diseases will likely require a preventative vaccine. C. trachomatis polymorphic membrane protein D (PmpD) is an attractive vaccine candidate as it is conserved among C. trachomatis strains and is a target of broadly cross-reactive neutralizing antibodies. We show here that immunoaffinity-purified native PmpD exists as an oligomer with a distinct 23-nm flower-like structure. Two-dimensional blue native-s…

Mycoplasma genitalium detected by transcription-mediated amplification is associated with Chlamydia trachomatis in adolescent women.

OBJECTIVES: The clinical significance of Mycoplasma genitalium (MG) infection in adolescent women is poorly understood. We compared the prevalence of MG with that of other sexually transmitted organisms such as Chlamydia trachomatis (CT), Neisseria gonorrhoeae (NG), and Trichomonas vaginalis (TV) and assessed the associations of MG with sexual behaviors, genitourinary symptoms, physical and laboratory findings. STUDY DESIGN: Women aged 14 to 21 years (n = 331) were recruited from an urban medical center. The subjects' sexual behaviors, genitourinary symptoms, and physical findings were record…

[Chlamydia trachomatis infection and bacterial analysis in pregnant women in II and III trimester of pregnancy].

UNLABELLED: Chlamydia trachomatis (CT) infection during pregnancy might be the reason of an increased risk of preterm delivery and premature rupture of membranes. CT could also be responsible for the presence of intrauterine growth restriction, chorionamnionitis and post partum endometritis. It is the most common sexually transmitted disease. The infection may be the reason for PID and consequently even sterility. CT infection could be asymptomatic and the most frequently seen symptom is cervicitis in Pap smears. AIM: The main aim of the study was to estimate the frequency of CT infection in …

Quality assessment of conjunctival specimens for detection of Chlamydia trachomatis by PCR in children with active trachoma.

One component of control programmes to eliminate trachoma is the treatment of Chlamydia trachomatis infection. A diagnosis of trachoma is based on clinical grounds, but the signs of active trachoma do not always correlate with the presence of C. trachomatis. During a therapeutic trial, the level of C. trachomatis infection in children with active trachoma in Guinea and Pakistan was assessed using a qualitative commercially available PCR that targeted the C. trachomatis plasmid. The influence of the quality of specimens on the efficiency of the PCR was investigated using two quantitative real-t…

Chlamydia trachomatis antigen positivity in women in risk groups and its relationship with the use of antibiotics.

The present study examined the use of antibiotics with respect to the rate of Chlamydia trachomatis positivity. Our subjects were 282 sexually active Turkish females between the ages of 15 and 42. Endocervical samples were investigated in 60 women with pelvic inflammatory diseases (PIDs), 90 infertile patients (IPs), 92 registered commercial sex workers (CSWs), and 40 intrauterine device (IUD) users. All samples were analyzed using direct immunofluorescence test techniques for the presence of C. trachomatis antigen, which was found in 12.7% of our subjects, with positive results as high as 26%…

Chlamydia trachomatis infection in pregnant women hospitalised in the Institute of Mother and Child in Warsaw, Poland.

UNLABELLED: Chlamydia trachomatis infection is the most common sexually transmitted disease. It concerns both epidemiologists and clinicians as it is often asymptomatic and can cause permanent sequelae. Chlamydia trachomatis infection in women causes nongonococcal cervicitis, endometritis, urethritis, inflammation of the Bartholin's gland, acute and chronic pelvic inflammatory disease, Fitz-Hugh-Curtis syndrome and can lead to Fallopian tube obstruction, infertility and ectopic pregnancy. During pregnancy it can cause chorioamnionitis, premature rupture of membranes, premature delivery, intrau…

Comparison of multiple genital tract infections with Chlamydia trachomatis in different strains of female mice.

We have previously shown that female outbred CF-1 mice are susceptible to prolonged genital tract infection with the oculogenital serovars (D-K) of Chlamydia trachomatis, and that partial homotypic and heterotypic protection against reinfection is induced. To understand the possible role of inherent T-helper 1 (Th1)/Th2 polarity bias on both the course of infection and the level of acquired immunity induced by infection, 2 immunologically different and well-characterized inbred strains of mice, BALB/c and C57BL/6, were studied in this model. Groups of mice were inoculated intravaginally with C…

Scrotal mass with fever and generalized lymphadenopathy in a young man secondary to Chlamydia trachomatis infection.

A young man presented with systemic upset and generalised lymphadenopathy. Later, it transpired that he was under investigation for a scrotal mass. Investigations were carried out to ascertain the cause of his symptoms including lymph node biopsy. Because of the presence of a scrotal mass in a sexually active male, a urinary Chlamydia ligase chain reaction (LCR) test was carried out. The result was positive and he was treated with doxycycline for 2 weeks. His symptoms settled and further, the urinary LCR was negative. We propose that Chlamydia trachomatis infection caused his illness and that …