His work has been seminal to identify and characterize the immune mechanisms that underlie erosive arthritis in systemic lupus erythematosus, especially those related to the abnormal behavior of citrulline and C-reactive protein. He has also been involved in the study of kidney damage in Takayasu's arteritis as well as in the existence of subclinical tissue damage in patients with asymptomatic hyperuricemia. Dr. Amezcua-Guerra teaches immunology to postgraduate students in Rheumatology at the Universidad Nacional Autónoma de México and to undergraduate students at the