PMID- 24712657 OWN - NLM STAT- MEDLINE DCOM- 20170714 LR - 20211204 IS - 1756-185X (Electronic) IS - 1756-1841 (Linking) VI - 19 IP - 5 DP - 2016 May TI - Chlamydia trachomatis elementary bodies in synovial fluid of patients with reactive arthritis and undifferentiated spondyloarthropathy in India. PG - 506-11 LID - 10.1111/1756-185X.12364 [doi] AB - OBJECTIVES: Reportedly, there is little information on the magnitude of genitourinary-induced reactive arthritis (gReA) from India. Genital infection with Chlamydia trachomatis is a major health problem in India because of its high prevalence; therefore, this study was conducted with the aim to screen ReA/undifferentiated spondyloarthropathy (uSpA) patients (n = 20) attending a major city hospital in New Delhi, for investigating the presence of intra-articular chlamydial antigen in knee joints. Patients with rheumatoid arthritis (RA) and osteoarthritis (OA) served as controls (n = 20). METHODS: Synovial fluid samples were screened for chlamydial elementary bodies (EBs) using a commercial kit (MicroTrak C. trachomatis Direct Specimen Test; Trinity Biotech, USA) for performing direct fluorescence assay (DFA). RESULTS: Chlamydia trachomatis EBs were detected in the synovial fluid cell deposits of six patients in Group I, namely, 33.3% (4/12) ReA and 25% (2/8) uSpA. All C. trachomatis positive patients exhibited an oligoarticular clinical picture with knee joint involvement. In the synovial fluid cell deposits of control patients, namely, RA/OA, no chlamydial EBs could be detected. CONCLUSIONS: This is the first study reporting the presence of C. trachomatis EBs in the synovial fluid of spondyloarthropathy patients, namely, ReA/uSpA from our country and it can be concluded that the prevalence of C. trachomatis-induced ReA is underestimated. Although our study had limitations in terms of sample size and lower sensitivity of DFA, yet this test can be used as an initial diagnostic tool for screening and patients with positive results may undergo specific tests for validation. CI - (c) 2014 Asia Pacific League of Associations for Rheumatology and Wiley Publishing Asia Pty Ltd. FAU - Kumar, Praveen AU - Kumar P AD - Microbiology Laboratory, National Institute of Pathology (ICMR), New Delhi, India. FAU - Khanna, Geetika AU - Khanna G AD - Central Institute of Orthopedics (CIO), New Delhi, India. AD - Vardhaman Mahavir Medical College (VMMC) and Safdarjung Hospital, New Delhi, India. FAU - Batra, Sumit AU - Batra S AD - Central Institute of Orthopedics (CIO), New Delhi, India. FAU - Sharma, Vinod K AU - Sharma VK AD - Central Institute of Orthopedics (CIO), New Delhi, India. AD - Vardhaman Mahavir Medical College (VMMC) and Safdarjung Hospital, New Delhi, India. FAU - Rastogi, Sangita AU - Rastogi S AD - Microbiology Laboratory, National Institute of Pathology (ICMR), New Delhi, India. LA - eng PT - Journal Article DEP - 20140409 PL - England TA - Int J Rheum Dis JT - International journal of rheumatic diseases JID - 101474930 RN - 0 (Antigens, Bacterial) RN - 0 (PHB2 protein, human) RN - 0 (Prohibitins) SB - IM MH - Adult MH - Antigens, Bacterial/immunology/*isolation & purification MH - Chlamydia Infections/diagnosis/immunology/*microbiology MH - Chlamydia trachomatis/immunology/*isolation & purification MH - Female MH - Humans MH - India MH - Knee Joint/immunology/*microbiology MH - Male MH - Prohibitins MH - Spondylarthropathies/diagnosis/immunology/*microbiology MH - Synovial Fluid/immunology/*microbiology MH - Young Adult OTO - NOTNLM OT - Chlamydia trachomatis OT - elementary body OT - reactive arthritis OT - synovial fluid OT - undifferentiated spondyloarthropathy EDAT- 2014/04/10 06:00 MHDA- 2017/07/15 06:00 CRDT- 2014/04/10 06:00 PHST- 2014/04/10 06:00 [entrez] PHST- 2014/04/10 06:00 [pubmed] PHST- 2017/07/15 06:00 [medline] AID - 10.1111/1756-185X.12364 [doi] PST - ppublish SO - Int J Rheum Dis. 2016 May;19(5):506-11. doi: 10.1111/1756-185X.12364. Epub 2014 Apr 9.