Since Landsteiner discovered human blood types, not only blood cells but also many organs and some excretae have been examined for the type substances. More-over, those studies of type substances have been extended to many kinds of animals.F. Schiff (1922, 1933) reported the presence of a type specific precipitin reaction in his study on a type specific precipitin prepared by the immunological procedure.In our country, Ouchi (1927), Fukamachi (1927), Higuchi (1928) and Fukao (1935, 1937) mere recognized by their studies.On the presence of a type specific precipitin in normal saliva, Ueyama (1938) reported that he found anti B precipitin which presented the type specific precipitin reaction with only secretive type of human O type saliva. In 1939, he also found anti T precipitin reacting specially with only non-secretive type of domestic fowl sera. Terashima (1939) reported some instances of pig sera containing anti A and anti B precipitins, and some cases having anti C and anti T precipitins. Inoue and Seki (1940) confirmed that an eel had a new precipitin which reacted with only secretive type of human saliva and did not react with non-secretive type of saliva.Muratani (1946) found a type specific precipitin reacting with A type substance in cow sera, and he reported that those sera presented the specific precipitinreaction to human A and B type saliva, human meconium, and human semen. Further, he compared the cow sera with true anti A precipitin, and thought that the normal type precipitin might be anti. AIV precipitin consisting of a part of anti A precipitin.Landsteiner and Levine reported the presence of a heterogenetic agglutinin in normal horse sera, but no one has yet studied on the heterogenetic precipitin in them.In the course of studying precipitin reaction of normal horse sera to each type of human saliva, the author fortunately found one kind of serum which reacted with only secretive type of human B type saliva. This paper aims to present some new findings regarding with these horse sera.
抄録全体を表示