The Pathway Ontology (PW), is currently being developed at the Rat Genome Database. For more information about this vocabulary, please see Petri et al. The rat genome database pathway portal. Database (Oxford). 2011 Apr 8;2011:bar010. Print 2011 or contact us (https://rgd.mcw.edu/rgdweb/contact/contactus.html).
The pharmacokinetics and pharmacodynamics of methotrexate (MTX), a polyglutamatable antifolate used in the treatment of cancers and autoimmune diseases. The impact of MTX on cancer and rheumatoid arthritis is thought to arise through distinct mechanisms and pharmacodynamics pathways. Genetic variations can result in changes in drug availability and can cause differences in the response of the organism to the drug.