Evaluation of complement system in the aged

ABSTRACT

This study was conducted on 30 normal elderly males over 60 years of age and a control group of 10 healthy young male volunteers. Estimation of serum complement components C3 and C4 were performed using radial immune, diffusion technique. An increase in the complement C3 and C4 was demonstrated in the elderly, which might be due to extensive activation of the complement system or impaired utilization