Prevalence of female genital tuberculosis, its risk factors and associated clinical features among the women of Andaman Islands, India: a community-based study

Analysis of the potential regulatory mechanisms of female and latent genital tuberculosis affecting ovarian reserve function using untargeted metabolomics

Female and latent genital tuberculosis (FGTB and LGTB) in young women may lead to infertility by damaging ovarian reserve function, but the regulatory mechanisms remain unclear. In this study, we investigated the effects of FGTB and LGTB on ovarian reserve function and potential regulatory mechanisms by untargeted metabolomics of follicular fluid, aiming to provide insights for the clinical management and treatment approaches for afflicted women. We recruited 19 patients with FGTB, 16 patients with LGTB, and 16 healthy women as a control group. Clinical data analysis revealed that both the FGTB and LGTB groups had significantly lower ovarian reserve marker levels compared to the control group, including lower anti-Müllerian hormone levels (FGTB: 0.82 [0.6, 1.1] μg/L; LGTB: 1.57 [1.3, 1.8] μg/L vs. control: 3.29 [2.9, 3.5] μg/L), reduced antral follicular counts (FGTB: 6 [5.5, 9.5]; LGTB: 10.5 [7, 12.3] vs. control: 17 [14.5, 18]), and fewer retrieved oocytes (FGTB: 3 [2, 5]; LGTB: 8 [4, 8.3] vs. control: 14.5 [11.5, 15.3]). Conversely, these groups exhibited higher ovarian response marker levels, such as longer gonadotropin treatment days (FGTB: 12 [10.5, 12.5]; LGTB: 11 [10.8, 11.3] vs. control: 10 [8.8, 10]) and increased gonadotropin dosage requirements (FGTB: 3300 [3075, 3637.5] U; LGTB: 3037.5 [2700, 3225] U vs. control: 2531.25 [2337.5, 2943.8] U). All comparisons were statistically significant at P < 0.05. The results suggested that FGTB and LGTB have adverse effects on ovarian reserve and response. Untargeted metabolomic analysis identified 92 and 80 differential metabolites in the control vs. FGTB and control vs. LGTB groups, respectively. Pathway enrichment analysis revealed significant alterations in metabolic pathways in the FGTB and LGTB groups compared to the control group (P < 0.05), with specific changes noted in galactose metabolism, biotin metabolism, steroid hormone biosynthesis, and nicotinate and nicotinamide metabolism in the FGTB group, and caffeine metabolism, primary bile acid biosynthesis, steroid hormone biosynthesis, and glycerophospholipid metabolism in the LGTB group. The analysis of metabolic levels has revealed the potential mechanisms by which FGTB and LGTB affect ovarian reserve function, namely through alterations in metabolic pathways. The study emphasizes the importance of comprehending the metabolic alterations associated with FGTB and LGTB, which is of considerable relevance for the clinical management and therapeutic approaches in afflicted women.

Tuberculosis and its clinical consequences on Women's health

Mycobacterium tuberculosis causes tuberculosis, a fatal infection resulting in widespread illness and death. In 2020, approximately 10 million people were diagnosed with tuberculosis. The top 30 tuberculosis-endemic countries accounted for 86% of all estimated occurrence cases worldwide. In this context, eight of these accounted for two-thirds of the global total, with India having a prevalence of 26%. Aside from lung inflammation, the risk factors for tuberculosis in women include extra-pulmonary infection, particularly genital tuberculosis, tuberculous mastitis, and tuberculous in the peritoneum, intestine, and spine. Depending on the epidemiologic context and screening methods, different tuberculosis symptoms and disease diagnoses are more or less common among expectant mothers. The disease is almost certainly going to have a global impact. The social stigma and anxiety associated with tuberculosis may have a much more significant negative impact on women's health behaviors than men. Notably, the abdominal sites of miliary tuberculosis could mimic tumor likely, carcinoma and lymphoma. Also, the results of the diagnostic accuracy tests for the condition demonstrate that extra-pulmonary tuberculosis can be quickly and accurately diagnosed in various sites using both the T-SPOT assay and the GeneXpert/PCR test. Therefore, this review exemplified the prevalence of extra-pulmonary tuberculosis at various points in women's lives. On the contrary, it also illustrated the symptoms and dangers of TB as they relate to women's health.

Comparative study on complications and difficulties in laparoscopy in female genital tuberculosis cases versus non-tuberculosis cases

BACKGROUND AND OBJECTIVE

Female genital tuberculosis (FGTB) is an important type of extrapulmonary tuberculosis (TB) associated with morbidity especially infertility in developing countries. Laparoscopy may be difficult and hazardous in FGTB. The aim of the study was to observe the difficulties and complications of laparoscopy in FGTB cases.

MATERIALS AND METHODS

It was a prospective study over 12 years' period on 412 cases of diagnostic laparoscopy performed on FGTB cases with infertility. All patients underwent history taking and clinical examination and endometrial sampling for acid-fast bacilli (AFB) microscopy, culture, polymerase chain reaction (PCR), gene Xpert (last 212 cases) and histopathological evidence of epithelioid granuloma. Another 412 cases of diagnostic laparoscopy in the absence of FGTB performed during same time were taken as controls from the pool of non-TB cases. Various difficulties and complications were noted in both groups and statistical analysis was done.

RESULTS

Mean age, parity, body mass index and duration of infertility were 26.8 versus 25.4 years, 0.32 versus 0.28, 23.15 versus 25.28 Kg/m 2 and 4.15 versus 5.12 years, respectively. Primary and secondary infertility was seen in 78.6% and 20.38% of cases in the study group and 74.75% and 25.24% in the control group, respectively. Endometrial biopsy showed AFB microscopy in 5.3%, culture in 6.3%, epithelioid granuloma in 15.77% and on peritoneal biopsy granuloma in 6.55%, positive PCR in 368 (89.32%) and positive gene Xpert in 38 out of 212 (17.92%, out of last 212 cases). Definite findings of FGTB were seen in 171 (41.50%) cases. Probable findings of FGTB were seen in 241 (58.49%) cases. Various complications were difficulty in the creation of pneumoperitoneum or insertion of trocar and cannula in 16.74% and 13.10% of cases as compared to 1.94% and 1.69% in the control group. Excessive bleeding was seen in 5.09% versus 0.97% cases, respectively. Various injuries observed were bowel injury in 1.69% versus 0.24% cases (small bowel in 1.21% vs. 0.24%, large bowel in 0.48% vs. 0.1%), while bladder injury was seen in 0.97% versus 0.24% cases, subacute intestinal obstruction was seen in 5.8% versus 0.72% cases respectively while flare up of TB was seen in 5.09% versus 0% in cases and controls, respectively. Wound infection was seen in 8.48% versus 1.25% cases, respectively.

INTERPRETATION AND CONCLUSION

FGTB is associated with increased complications and difficulties as compared to laparoscopy in other cases.

Effects of antituberculosis treatment on pregnancy outcomes in infertile women with genital tuberculosis: a systematic review

OBJECTIVES

To evaluate the efficacy of antituberculosis therapy on pregnancy outcomes in infertile women with genital tuberculosis.

DESIGN

Systematic review.

DATA SOURCES

We searched in PubMed/MEDLINE, CENTRAL and EMBASE up to 15 January 2023. Additionally, we manually search the reference lists of included studies.

ELIGIBILITY CRITERIA

We included randomised controlled trials (RCT), non-RCTs (non-RCT) and cohort studies that evaluated the effects of antituberculosis treatment on pregnancy outcomes in infertile women with genital tuberculosis compared with not receiving antituberculosis treatment or receiving the treatment for a shorter period.

DATA EXTRACTION AND SYNTHESIS

Two independent reviewers extracted data. We used Cochrane Risk of Bias 1.0 and Risk Of Bias In Non-randomised Studies tools for risk of bias assessment and meta-analysis was not performed. We used Grading of Recommendations, Assessment, Development and Evaluations approach to assess the certainty of the evidence.

RESULTS

Two RCTs and one non-RCT were included. The antituberculosis regimens were based on isoniazid, rifampicin, pyrazinamide and ethambutol for 6-12 months. In women without structural damage, very low certainty of evidence from one RCT showed that the antituberculosis treatment may have little to no effect on pregnancy, full-term pregnancy, abortion or intrauterine death and ectopic pregnancy, but the evidence is very uncertain. In women with structural damage, very low certainty of evidence from one non-RCT showed that the antituberculosis treatment may reduce the pregnancy rate (297 fewer per 1000, 95% CI -416 to -101), but the evidence is very uncertain. In addition, very low certainty of evidence from one RCT compared a 9-month vs 6-month antituberculosis treatment regimen showed similar effects between the schemes, but the evidence is very uncertain. Two RCTs reported that no adverse events of antituberculosis treatment were noted or were similar in both groups.

CONCLUSION

The effect of antituberculosis treatment on pregnancy outcomes in infertile women with genital tuberculosis is very uncertain.

PROSPERO REGISTRATION NUMBER

CRD42022273145.

Immune disturbances in female genital tuberculosis and latent genital tuberculosis

BACKGROUND

Female genital tuberculosis (FGTB), an important clinical sub-type of extra-pulmonary tuberculosis (EPTB) is responsible for about 10% cases of infertility in India. Both FGTB and latent genital tuberculosis (LGTB) can cause infertility through blockage of fallopian tubes and through altered uterine endometrial receptivity.

AIMS

This review tries to elucidates the role of various immune factors in FGTB and LGTB.

CONTENT

Various immune disturbances are observed in FGTB and LGTB like growth factors and cytokines which inhibit implantation and several inflammatory signaling pathways like mitogen activated protein kinase (MAPK), natural killer (NK) cells, nuclear factor kappa-B (NF-KB), tumor necrosis factor (TNF), and toll like receptors (TLR) signaling are dysregulated. These altered immune factors and pathways may be detected in the endometrial biopsies at the early stages of disease before permanent damage. Prompt and adequate treatment with the four anti-tubercular drugs (rifampicin [R], isoniazid [H], pyrazinamide [Z], and ethambutol [E]) can increase pregnancy rates in some of these women. Assisted reproduction especially in-vitro fertilization and embryo transfer may be required for some women.

IMPLICATIONS

Inflammatory pathways identified from the gene profiling have enabled development of potential biomarkers for early diagnosis of FGTB. Immunomodulation and novel biotechniques like stem cell transplantation, nanoparticles and host directed therapies are being tried in selected patients of FGTB and LGTB with promising results.

Female Genital Tuberculosis: Clinical Presentation, Current Diagnosis, and Treatment

Female genital tuberculosis is a disease caused by Mycobacterium tuberculosis infection in the female reproductive tract. The disease burden among women leads to infertility is significant, especially in developing countries. The bacteria can spread from the lung into the reproductive organ through lymphatic or hematogenous. Many patients present with atypical symptoms, which mimic other gynecological conditions. Several investigations are needed to establish the diagnosis. Almost all cases of genital TB affect the fallopian tube and cause infertility in patients and endometrial involvement. Current treatment still relies on antituberculosis therapy with a combination of tubal surgery. The present review describes the epidemiological data, clinical presentation, diagnosis, and currently available treatment to cure the disease and for in vitro fertilization.

Diagnosis of Genital Tuberculosis in Infertile Women by Using the Composite Reference Standard

Female genital tuberculosis (FGTB) can be asymptomatic or even masquerade as other gynecological conditions. Conventional methods of FGTB diagnosis include various imaging, bacteriological, molecular, and pathological techniques that are only positive in a small percentage of patients, leaving many cases with undiagnosed condition. In the absence of a perfect diagnostic method, composite reference standards (CRSs) have been advocated in this diagnostic study. This study assesses the agreement between traditional diagnostic modalities using CRS and prevalent TB groups among different fallopian tube infertility manifestations. A total of 86 women with primary and secondary infertility were included in the study and subjected to bacteriological, pathological, and radiological examination for the diagnosis of FGTB. Results were evaluated statistically for concordance of the diagnostic tests to the CRS by sensitivity and specificity, while PPV and NPV were calculated for the performance of diagnostic tests of FGTB. We observed that 11.2% of women were found to be true positives by means of CRS. The positive findings by CRS were as follows: ultrasonography (13.9%), laparoscopy (14%), hysteroscopy (12%), GeneXpert (4.8%), culture (4.8%), polymerase chain reaction (4.8%), and histopathology (6.4%). GeneXpert and culture were found to have a perfect agreement with CRS. Hysterosalpingography, laparoscopy, and hysteroscopy have a fair agreement with CRS. Out of 43 women with tubal factor infertility, 6 women were found in the definitive TB group with mixed conditions of tubal manifestations. This study evaluates and demonstrates the reliability of the collective assessment of various diagnostic methods with CRS findings that help in identifying different TB groups of genital tuberculosis patients from all infertile patients by applying the criteria of CRS.

Female genital tuberculosis in light of newer laboratory tests: A narrative review

Female genital tract tuberculosis (FGTB) is a chronic disease with varied presentation. The diagnosis of FGTB for early institution of treatment remains a clinical challenge. Its laboratory diagnosis is difficult because of paucibacillary nature of the condition and limitation of available diagnostic tests. In view of the intricate problems in diagnosis of FGTB, physicians tend to over treat with empirical anti-tuberculosis drugs. Apart from concerns of drug toxicity, this may be a contributing factor in the increasing incidence of multidrug-resistant TB reported in India. The main goal for advances in TB diagnostics is to reduce delay in diagnosis and treatment. In addition, there should be reduced complexity, improving robustness, and improving accuracy of the laboratory test for diagnosis of Female genital tuberculosis.

OBJECTIVE

This narrative review is written with the following objectives. 1) To get a comprehensive overview as well as recent advances in diagnostic test used in the detection of FGTB. 2) To understand the limitations as well as advantages of these laboratory diagnostic test. 3) To provide clinical guidance regarding the detection in susceptible women.

METHOD

The literature search was performed using electronic database of Pubmed, Medline, Embase and Google Scholar. Grey literature search was also done. Studies published in English were included. Following keywords were used for search - Tuberculosis, extra pulmonary tuberculosis, female genital tuberculosis, diagnosis of female genital tract tuberculosis. The personal knowledge and experience of authors in the field, helped in archiving the relevant articles.

RESULT

Studies suggest that though culture is an invaluable contributor in the diagnosis of FGTB, molecular tests like PCR, LAMP, Xpert MTB/RIF and line probe assays have shown potential and are now being explored to strengthen the diagnostic algorithm of FGTB.

CONCLUSION

The use of algorithm approach with combination of both rapid culture and newer molecular techniques will facilitate the accurate and timely diagnosis of FGTB.

Urogenital tuberculosis - epidemiology, pathogenesis and clinical features

Tuberculosis (TB) is the most common cause of death from infectious disease worldwide. A substantial proportion of patients presenting with extrapulmonary TB have urogenital TB (UG-TB), which can easily be overlooked owing to non-specific symptoms, chronic and cryptic protean clinical manifestations, and lack of clinician awareness of the possibility of TB. Delay in diagnosis results in disease progression, irreversible tissue and organ damage and chronic renal failure. UG-TB can manifest with acute or chronic inflammation of the urinary or genital tract, abdominal pain, abdominal mass, obstructive uropathy, infertility, menstrual irregularities and abnormal renal function tests. Advanced UG-TB can cause renal scarring, distortion of renal calyces and pelvic, ureteric strictures, stenosis, urinary outflow tract obstruction, hydroureter, hydronephrosis, renal failure and reduced bladder capacity. The specific diagnosis of UG-TB is achieved by culturing Mycobacterium tuberculosis from an appropriate clinical sample or by DNA identification. Imaging can aid in localizing site, extent and effect of the disease, obtaining tissue samples for diagnosis, planning medical or surgical management, and monitoring response to treatment. Drug-sensitive TB requires 6-9 months of WHO-recommended standard treatment regimens. Drug-resistant TB requires 12-24 months of therapy with toxic drugs with close monitoring. Surgical intervention as an adjunct to medical drug treatment is required in certain circumstances. Current challenges in UG-TB management include making an early diagnosis, raising clinical awareness, developing rapid and sensitive TB diagnostics tests, and improving treatment outcomes.

[Epidemio-clinical features of genital tuberculosis among Tunisian women: a series of 47 cases]

L'objet est de relever les caractéristiques épidémio-cliniques, diagnostiques, thérapeutiques et évolutives de la tuberculose génitale (TG) chez la femme en Tunisie. Nous avons mené une étude rétrospective, descriptive au service des maladies infectieuses de l'hôpital la Rabta de Tunis, sur une période de 15 ans et demi (janvier 2000-juin 2014). Nous avons inclus toutes les patientes hospitalisées pour une tuberculose génitale. 47 cas ont été colligés. L'âge moyen était de 42,2 ans. Dix-huit femmes étaient d'origine rurale. Un comptage tuberculeux a été retrouvé dans cinq cas. Pour tous les cas, le début était insidieux. Un ou plusieurs signes d'imprégnation tuberculeuse ont été rapportés dans 23 cas. L'intradermoréaction (IDR) à la tuberculine réalisée chez 35 femmes (74,8%), était positive dans 26 cas (74%). Trente-neuf patientes (83%) avaient eu une exploration radiologique par une échographie et / ou une tomodensitométrie (TDM) abdomino-pelvienne. Une cœlioscopie diagnostique a été réalisée dans 37 cas (75,5%). L'examen Anatomopathologique a permis de confirmer le diagnostic de TG dans 42 cas (89,3%) en retrouvant un granulome épithéloïde et giganto-cellulaire. Nous avons relevé 21 cas de TG isolée, alors que les 26 autres avaient une atteinte péritonéale associée. Toutes les patientes ont reçu une antibiothérapie spécifique associant l'Isoniazide, la Rifampicine, le Pyrazinamide et l'Ethamubutol pour une durée moyenne de 12 mois. Aucune patiente n'a reçu de corticothérapie et aucune chirurgie secondaire n'a été indiquée. L'évolution était favorable dans 39 cas, 8 patientes ont été perdues de vue. La TG est une pathologie rare qui ne représente que 0,5% de la tuberculose extra-pulmonaire, mais d'un grand polymorphisme clinique. La confirmation diagnostique est difficile et repose sur l'étude bactériologique et/ou histologique. Le diagnostic doit être évoqué devant toute symptomatologie abdomino-pelvienne trainante, devant une stérilité chez la femme, associé à un contexte épidémio-clinique évocateur.