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류마티스 관절염과 HLA-B27과의 연관성에 관한 연구
고희관 ( Hee Kwan Koh ),오광택 ( Kwang Taek Oh ),송용호 ( Yong Ho Song ),정자헌 ( Ja Hun Jung ),김태환 ( Tae Hwan Kim ),김동욱 ( Dong Yook Kim ),전재범 ( Jae Bum Jun ),정성수 ( Sung Soo Jung ),이인홍 ( In Hong Lee ),배상철 ( Sang 대한류마티스학회 1996 대한류마티스학회지 Vol.3 No.1
Objective: In rheumatoid arthritis(RA) patients, HLA-B27 has been mainly found with the same frequency as in the normal population. An increased frequency of HLA-B27 in RA has, however, repeatedly been found in northern Sweden and in Filand. The results concerning the association of HLA-B27 to the outcome of the disease have been contradictory in RA. In RA, the presence of HLA-B27 has shown to be a prognostic index for cervical spine subluxation. There has been no report regarding the association between RA and HLA-B27 in the Korean population. Methods: 188 patients with RA were randomly selected from the patients who were diagnosed at Rheumatism Center of Hanyang University Hospital from October 1994 to June 1995 to establish the frequency of HLA-B27 in RA and to investigate the possible influence and prognostic significance on clinical outcome including atlantoaxial subluxations. Results: The results were as follows: 1) HLA-B27 was present in 12.2% of the RA patients studied. The relative risk (RR) and etiologic fraction (EF) of HLA-B27 were 5.99 and 0.1019 respectively. 2) The rheumatoid factor was positive in 79.8% of the total patients, 73.9% in HLA-B27 positive patients, and 80.6% in HLA-B27 negative patients. HLA-B27 was not associated with the presence of rheumatoid factor in this study. 3) HLA-B27 was not associated with the duration of morning stiffness, Ritchie index, extraarticular manifestations, the number of swollen joints, ARA functional class, ESR. C-reactive protein, or hemoglobin. HLA-B27 was not associated with the positivity of ANA and antiperinuclear factor. 4) HLA-B27 was not associated with the positive rate of erosion and Steinbrocker class in peripheral joints. 5) Atlantoaxial subluxation was present in 13% of HLA-B27 positive patients and 17% of HLA-B27 negative patients. The involvement of atlantoaxial joint including narrowing of lateral facet joints was 26.1% in HLA-B27 positive patients and 20.6% in HLA-B27 negative patients. Subaxial subluxation was presented in only 1 case in HLA-B27 negative group of total patients. HLA-B27 was not associated with the cervical changes in RA. Conclusions: An increased freuency of HLA-B27 in RA patients was significantly found in Korea (RR=5.99, EF=0.1019). However, patients with HLA-B27 had a similiar clinical profile to patients without HLA-B27 and HLAB27 positivity did not further contribute to the severity with respect to clinical and laboratory variables or to radiological progression in peripheral joints or cervical spine.
고희관 ( Hee Kwan Koh ),안명주 ( Myung Ju Ahn ),김태환 ( Tae Hwan Kim ),이은영 ( Eun Young Lee ),유태석 ( Tae Seok Yoo ),이제경 ( Je Kyung Lee ),장대국 ( Dae Kook Chang ),심승철 ( Seung Cheol Shim ),전재범 ( Jae Bum Jun ),정성수 ( 대한류마티스학회 1999 대한류마티스학회지 Vol.6 No.1
Objective: Rheumatoid arthritis(RA) is a disease characterized by infiltration of mononuclear cells into synovium and abnormal proliferation of synovial cells leading to pannus formation, which shows tumor-like growth. To determine whether telomerase is activated in RA and telomerase might be involved in the pathogenesis of RA, we measured telomerase activity in patients with RA. Methods: Telomerase activity was measured by using TRAP(telomeric repeat amplification protocol) assay in synovial tissues obtained from 17 patients with RA and 10 patients with osteoarthritis(OA), in cultured synovial cells from 4 patients with RA and 2 patients with OA, and in extracts of mononuclear cells from synovial fluid of 6 patients with RA. Results: Twelve of synovial tissues from 17 patients with RA(70.6%) showed telomerase activity, where three of synovial tissues from 10 patients with OA(30%) showed telomerase activity with low activity. Telomerase activity was detected in two of the cultured synoviocytes from 4 patients with RA(50%), but synoviocytes from patients with OA did not reveal any telomerase activity, if any. Telomerase acivity was detected in mononuclear cells extracted from synovial fluid of all patients with RA. Conclusion: Telomerase activity is highly positive in RA synovial tissues than OA synovial tissues and in RA synoviocytes as in mononuclear cells from synovial fluid. Taken together, these findings indicate that telomerase may playa role in the pathogenesis of RA.