- Group A streptococci produce the enzyme streptolysin O, which can destroy red blood cells.
- Body reacts by producing antistreptolysin O to neutralize it.
- A high titer indicates there isor has been a streptococcal infection or has been present.
- ASO appears in the blood serum one week to one month after the onset of a strep infection.
- Normal value : < 200 Todd units
Titer : standard of strength of a volumetric test solution; the assay value of an unknown measure by volumetric means
1 comment:
Streptolysin O possesses a single polypeptide chain with a molecular weight of f62 kDa. Streptolysin O binds to membrane cholesterol and oligomerizes to create a ring structure that consists of 45 to 50 units. streptolysin o
Post a Comment