1/2. Exacerbation of rheumatoid arthritis following helicobacter pylori eradication: disruption of established oral tolerance against heat shock protein?A 62-year-old Japanese woman with RA received an eradication therapy against helicobacter pylori in November 1999. Eight weeks later, successful eradication was confirmed by negative results for rapid urease test, pathologic findings, and a fall in anti-H. pylori IgG antibody titer. During the course, parameters for RA activity were exacerbated: c-reactive protein 1.1-4.2 mg/dL, rheumatoid arthritis precipitation antigen 2560-5120 dils., erythrocyte sedimentation rate 52-123 mm/h, and complements CH50 50 to over 60 U/mL. Lansbury index increased from 70% to 105%. Two more weeks later, the patient noticed right shoulder pain. She also complained of bilateral gonalgia two months later, and physical examination revealed increased fluid in the knee joints. prednisolone was required to control the disease activity. The results of this case suggested that RA patients might experience a deleterious effect on the disease activity following H. pylori eradication possibly through disruption of the established oral tolerance against stress protein such as mycobacterial heat shock protein 65.- - - - - - - - - - ranking = 1keywords = physical (Clic here for more details about this article) |
2/2. Poststreptococcal reactive arthritis: report of one case.Poststreptococcal reactive arthritis (PSRA) is a clinical syndrome of reactive arthritis. It is associated with recent streptococcal infections, but could not fulfill the revised Jones criteria for acute rheumatic fever (ARF). The incidence of PSRA cardiac complications to develop was as high as the ARF's developing into rheumatic heart disease. A 9-year-old boy presented with limping gait. He had pain in his left knee for 4 days but no fever. His right knee was swelling with a limitation of movement. A throat culture showed positive growth for group A streptococcus, and consequently antistreptolysin-O serum titer and c-reactive protein were elevated. A synovial fluid examination was turbid but sterile. After 3 days the arthralgia subsided rapidly. A cardiac color Doppler and electrocardiogram showed no evidence of valvular disease. Under the threat of high incidence of rheumatic heart disease in PSRA, we treated this patient with prophylactic antibiotics as acute rheumatic fever. A clinic follow up one year later showed neither sequels nor heart murmur on physical examination.- - - - - - - - - - ranking = 1keywords = physical (Clic here for more details about this article) |