RT Journal Article
SR Electronic
T1 Purified Protein Derivative Response in Juvenile Idiopathic Arthritis
JF The Journal of Rheumatology
JO J Rheumatol
FD The Journal of Rheumatology
SP 2029
OP 2032
DO 10.3899/jrheum.090173
VO 36
IS 9
A1 EVRIM KIRAY
A1 OZGUR KASAPCOPUR
A1 VEDAT BAS
A1 AYLA KAMBUROGLU-GOKSEL
A1 KENAN MIDILLI
A1 NIL ARISOY
A1 YUCEL TASTAN
YR 2009
UL http://www.jrheum.org/content/36/9/2029.abstract
AB Objective. To examine the purified protein derivative (PPD) response that develops depending upon Th1 immune response in children with juvenile idiopathic arthritis (JIA). Methods. PPD skin test was performed in 115 children with JIA who were vaccinated with bacillus Calmette-Guerin (BCG), and then they were compared to the PPD response of 45 healthy children of the same age who were vaccinated with BCG. Children with a PPD induration ≥ 5 mm were accepted as PPD-positive. PPD induration ≥ 10 mm was accepted as a limit for suspecting tuberculosis. Results. PPD induration size and PPD positivity rates (PPD ≥ 5 mm) of children with JIA were significantly lower than those of healthy children. The mean of PPD induration size was significantly lower (p < 0.0001) in patients with either 1 BCG vaccine (3.7 ± 3.6) or more than 1 BCG vaccine than controls with either 1 BCG vaccine (7.10 ± 3.2) or more than 1 BCG vaccine (10.05 ± 4.1). PPD was positive in 35.9% of patients with JIA vaccinated once (n = 32), in 50% of patients with JIA vaccinated more than once (n = 13), in 82.1% of controls vaccinated once (n = 23), and in 88.2% of controls vaccinated more than once. This result was statistically significant (patients, p = 0.03; controls, p = 0.039). It was determined that neither the activity of the disease nor the use of corticosteroid and methotrexate affected the PPD response. Conclusion. The response to PPD, which is one of the Th1 cell-type responses, was significantly lower in BCG-vaccinated children with JIA compared to healthy children.