Risk factors for oral methotrexate failure in patients with inflammatory polyarthritis: results from a UK prospective cohort study

Abstract Background Oral methotrexate (MTX) is the first-line therapy for patients with rheumatoid arthritis (RA).However, approximately one quarter of patients discontinue MTX within 12 months.MTX failure, defined as MTX cessation or the addition of another anti-rheumatic drug, is usually due adverse event(s) and/or inefficacy.The aims of this stu

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RPM-1 uses both ubiquitin ligase and phosphatase-based mechanisms to regulate DLK-1 during neuronal development.

The Pam/Highwire/RPM-1 (PHR) proteins are key regulators of neuronal development that function in axon extension and guidance, termination of axon outgrowth, and synapse formation.Outside of development, the PHR proteins also regulate axon regeneration and Wallerian degeneration.The PHR proteins function in part by acting as ubiquitin ligases that

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