Enzyme/immunofluorescent assay for anti-treponemal antibodies
US4645737A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 5, 1984 |
| Grant date | Feb 24, 1987 |
| Priority date | — |
| Expiry date | Mar 5, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S435/968
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for the determination of anti-treponemal antibody in a test sample comprises contacting a substrate for the anti-treponemal antibody with sample; treating the contacted substrate with labeled antihuman Ig antibody selected from (a) a mixture comprising enzyme labeled antihuman Ig antibody and fluorescent labeled antihuman Ig antibody, (b) antihuman Ig antibody labeled with an enzyme and a fluorescent label, and (c) fluorescent labeled antihuman Ig antibody to which enzyme labeled antibody against the animal species from which the antibody used in the fluorescent labeled antibody was derived is added subsequently, and (d) enzyme labeled antihuman Ig antibody to which fluorescent labeled antibody against the animal species from which the antibody used in the enzyme labeled antibody was derived is subsequently added; determining the enzyme activity of the treated substrate; and determining the immunofluorescent patterns in substrates exhibiting enzyme activity. The method is useful for the rapid screening of anti-treponemal antibodies for the diagnosis of syphilis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.