[A method of immunodiagnosis of myasthenia gravis].

A high-sensitive "immune" proserine++ test was developed for the early detection of myasthenia, especially of its concealed and unclear forms. The results are derived from counting Ach-ROK immune to blood acetylcholine (Ach) before and 30 min after subcutaneous proserin administration. A high (over 10%) baseline Ach-ROK blood count which fell sharply after proserin injection was characteristic of myasthenia patients as compared to controls (under 10%). The reverse was found in healthy individuals and patients with other nervous diseases: an increase of ROK up to 24-39%.