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. Vicia pallida Turcz. acts as ...
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. Vicia pallida Turcz. acts as pan-PHA to dog red blood cells. Therefore the author carried out agglutination inhibition test on Vicia pallida extract to dog red blood cells with 851 human sera, 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 vicia pallida extracts to dog red blood cells and the other did not.
2. The distribution of the former was 15% and the latter was 85%.
3. The agglutination inhibiting phenomena of human sera on Vicia pallida extract to dog red blood cells showed no constant relation with known blood and serum types such as ABO, MN, H, CI, Htr, PVI and CCI respectively.
4. This new classification of human sera is considered to be applicable to individual identification of blood stains.