RESUMEN
Objective To observe the expression of phosphatase and tensin hom ology deleted on chrom o-som e ten (PTEN) in m yocardial tissue in patients w ith coronary heart disease, and explore the relevance betw een the expression of PTEN and the occurrence and developm ent of coronary heart disease. Methods A total of 16 death cases w ith pathological diagnosis of coronary heart disease w ere collected as experi-m ental group, and 19 cases w ithout m yocardial lesions w ere selected as control group. The expression of PTENprotein and its m RNA w ere detected by im m unohistochem istry and real-tim e fluorescence quanti-tative PC R respectively. The correlation betw een the expression of PTEN and the pathogenesis of coronary heart disease w as analyzed. Results The expression of PTENprotein in myocardium in cases w ith coro-nary heart disease w as significantly low er com pared w ith the control group (P0.05). Conclusion PTEN m ay be involved in the occurrence and developm ent of coronary heart disease.