Evaluation of natural killer cell assay performance on shipped blood specimens.
Querec, Troy D, Abrams, Joseph, Stewart, Jennifer J et al.·Journal of immunological methods·2021
This study tested different laboratory methods for measuring natural killer (NK) cell function—an immune system measurement that may be important for ME/CFS—using blood samples that were shipped overnight instead of tested immediately. Researchers compared three different testing approaches and found that two of them (CRCA and FCCA) gave similar results when blood samples were processed a day after collection, suggesting these tests could work for clinical settings where samples need to be shipped.