<p>Serum PA levels slowly elevated after the TB patients accepted anti-TB drugs. Nine months after use of anti-TB drugs, the average of serum PA levels (194.1±29.2 mg/L) among these TB patients significantly rised to normal range. However, the serum PA levels of drug-resistant TB patients remained at a low level state. The serum PA levels in lung cancer patients were slowly reduced after chemotherapy.</p
