Non-contaminating direct serum assay of steroid hormones
US4477577A · kind A · utility
5Cited by
4References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 18, 1981 |
| Grant date | Oct 16, 1984 |
| Priority date | — |
| Expiry date | Sep 18, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S436/826
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for direct serum assay of steroid hormones wherein the competition from binding protein, having an affinity for complexing with the steroid hormones, is significantly eliminated by adding to the serum an artificial compound which has a greater or equal affinity for the binding protein than do the steroid hormones, and which is not immuno-reactive with the steroid hormones. Because the compound is artificial, it is non-contaminating. Levonorgestrel and norethindrone as such compounds are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.