| 摘要 |
A test for the differential detection of suspected N. gonorrhoeae (N.g.) and N. meningitidis (N.m.) in provided by contacting a suspected sample with a lectin, preferably wheat germ agglutinin and either soy bean agglutinin or STA potato lectin. An agglutinin reaction is a positive indication of the presence of such microorganisms. Separate portions of the specimen may be contaced with fast substrates specific for (a) N.g., (b) N.m., and (c) B. catarrhalis. Suitable fast substrates are proline naphthylamide, gamma glutamyl naphthylamide, and glycyl prolyl naphthylamide, respectively, each substituted with an electron donating group at the 4-position, 6-position, or both. Another portion of the specimen may be reacted with a substrate for beta-galactosidase enzyme, a positive reaction being an indication that the specimen contains N.lactimica. Autoagglutination, which could otherwise give a false positive in the lectin test, may be prevented by pretreatment of the specimen with DNA'ase and/or an anhydride such as succinic anhydride. |
