Some plant extracts are known to have biological activities as phytagglutinins (PHA's) and, in recent medicolegal studies, human sera were classified by their agglutination inhibiting properties to animal red blood cells. Celosia argentea L. acts as p...
Some plant extracts are known to have biological activities as phytagglutinins (PHA's) and, in recent medicolegal studies, human sera were classified by their agglutination inhibiting properties to animal red blood cells. Celosia argentea L. acts as pan-PHA to cat red blood cells. Therefore the author carried out agglutination inhibition test on Celosia argentea L. extract to cat red blood cells with 526 human sera, 126 stained sera, 95 stained whole blood specimens, and the results are compared with known blood and serum types. The results are obtained as follows;
1. Human sera could be classified into two groups. One group inhibited agglutinating activities of Celosia argentea L. extracts to cat red blood cells and the other did not.
2. The distribution of the former was 10% and the latter was 90%.
3. The agglutination inhibition phenomena of human sera on Celosia argentea L. extract to cat red blood cells showed no constant relation with known blood and serum types such as ABO, H. CI, ab. C, Cea, CCI and PVI respectively.
4. This new classification of human sera is considered to be appllicable to examination and classification of blood stains.