2011•BiomarkersRequires access
Kinetics of c-reactive protein (CRP) and serum amyloid A protein (SAA) in patients with community-acquired pneumonia (CAP), as presented with biologic half-life times
Saori Takata, Hiroo Wada, Masaki Tamura, Takashi Koide, Manabu Higaki, Shinichiro Mikura, Tetsuo Yasutake, Susumu Hirao, Masuo Nakamura, Koujiro Honda, Tomoko Nagatomo, Yasutaka Tanaka, Erei Sohara, Masato Watanabe, Takuma Yokoyama, Takeshi Saraya, Daisuke Kurai, Haruyuki Ishii, Hajime Goto
Abstract
Context: In management of community-acquired pneumonia (CAP), excellent biomarkers for inflammation would be helpful in our practice. Objectives: Kinetics of c-reactive protein (CRP) and serum amyloid A (SAA) was characterized, using their biologic half-life times. Materials and methods: Time course of CRP and SAA levels in the successfully treated 36 CAP patients were investigated and their half-life times were determined and compared. Results & Discussions: SAA and CRP declined in an exponential mean and the biologic half-life times of SAA levels was 34.9 ± 28.7 h, significantly shorter than that of CRP, 46.4 ± 21.7 h (p = 0.0014). Conclusion: The kinetic evidence, presented as biologic half-life times of CRP and SAA, helps us make a clinical assessment of CAP patients.