Evaluation of clopidogrel response variability and identification of the CYP2C19 polymorphism in Mexican patients.

Objective: Drug inhibition of platelet P2Y12 adenosine diphosphate receptor has reduced the incidence of adverse cardiovascular events after percutaneous coronary interventions. The analysis of the phosphorylation status of vasodilator-stimulated phosphoprotein by flow cytometry has shown a predictive value for adverse events and stent thrombosis. Polymorphisms of CYP2C19 in high risk patients may also relate to adverse cardiovascular events.

[Clinical utility of specialized immunologic testing in rheumatology in a secondary level hospital in Mexico].

Introduction: Laboratory tests have an important role in rheumatology for evaluation, diagnosis and follow up in several diseases. Specialized tests such as antinuclear antibodies (ANA), anti single or double stranded DNA antibodies (anti DNA) and anticardiolipin antibodies (AcACL) are frequently used and its diagnostic performance is well known in tertiary care centers. Our setting is a secondary care center that implemented these tests two years ago.