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).
Any quantification of the amounts or proportions of proteins, lipids, minerals, nutrients, gases, or other substances in a specified sample of pancreatic islet tissue, i.e. one or more of the islets of Langerhans, the small, encapsulated, irregular, microscopic structures scattered throughout the pancreas and comprising its endocrine portion. The pancreas is the elongated, racemose gland containing both endocrine and exocrine elements which secretes hormones such as insulin and glucagon internally and digestive enzymes externally.