RESUMO
<p><b>OBJECTIVE</b>To explore the relationship between angiotensinogen (AGT) gene M235T and TCM syndrome type in essential hypertension (ET) patients.</p><p><b>METHODS</b>The gene mutation frequency of AGT M235T in 168 ET patients and 42 nomotensive (NT) subjects were determined using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) technique.</p><p><b>RESULTS</b>There was a significant difference in AGT M235T gene mutation between patients of Gan-fire exuberant type and those of yin-yang deficiency type (P < 0.01), homozygote type TT appeared with higher frequency. Multivariate regression linear analysis demonstrated that the genotypes of AGT M235T was correlated with the prognosis of ET to a certain degree.</p><p><b>CONCLUSION</b>Gene mutation of AGT M235T may be associated with the genesis and development of ET, and the TCM syndrome type of ET has its own intrinsic molecular biological background.</p>