The Clinical Measurement Ontology (CMO), Measurement Methods Ontology (MMO), and Experimental Condition Ontology (XCO) are currently being developed at the Rat Genome Database. For more information about these vocabularies please see Shimoyama et al. Three ontologies to define phenotype measurement data. Front Genet. 2012;3:87. Epub 2012 May 28 or contact us (http://rgd.mcw.edu/contact/index.shtml).
Term:
blood T lymphocyte count to total lymphocyte count ratio
A calculated measurement in which the number of T cells in a specified sample of blood is divided by the total number of lymphocytes in the sample, and the result presented as a ratio, fraction, quotient or percentage. T cells are thymus-dependent lymphocytes, that is, those that pass through or are influenced by the thymus before migrating to tissues, and are responsible for cell-mediated immunity and delayed hypersensitivity, as well as, in some cases, activating and deactivating other immune cells.
Synonyms:
related_synonym:
blood T cell count as percentage of total lymphocytes; blood T cell count to total lymphocyte count ratio