青春期乳房肥大症乳腺组织中芳香化酶P450 mRNA的表达

目的 探讨芳香化酶P450 mRNA在青春期乳房肥大症乳腺组织中的表达及意义.方法 应用RT-PCR的方法测定15例青春期乳房肥大症乳腺组织中芳香化酶P450 mRNA的表达情况,并与15例正常乳腺组织中的芳香化酶P450 mRNA进行对比.结果 芳香化酶P450 mRNA的阳性表达率在乳房肥大组与正常乳腺组间差异无统计学意义(P>0.05).芳香化酶P450 mRNA阳性表达的病例中,青春期乳房肥大症乳腺组织中的平均测定值为0.202±0.048,正常乳腺组织为0.159±0.068,两者比较差异有统计学意义(P<0.05).结论 青春期乳房肥大症的发生、发展与乳腺组织中芳香化酶P450 mRNA的表达情况有关.

Expression of the P450arom mRNA in the glandular tissue of the pubertal mammary hypertrophy

Objective To investigate the expression status of the P450arom mRNA in breast tissue of pubertal mammary hypertrophy and then explore the possible etiology of pubertal mammary hypertrophy. Methods 15 patients were selected for pubertal mammary hypertrophy group. Breast hypertrophy tissue specimens were collected from the gland excised during reduction mammaplasty. 15 patients with pathologically simple fibroadenoma were used as another control group. Patient approval of participation in this study was obtained preoperatively. The expression of P450arom mRNA was detected by RT-PCR in all the cases above. Results There was no significant difference between the pubertal mammary hypertrophy groups and normal groups on the expression rates of P450arom mRNA. But among the positive cases, the expression of P450arom mRNA within breast tissue were 0.202±0.048 in pubertal mammary hypertrophy group; and 0.159±0.068 in normal group. There was significant difference between the pubertal mammary hypertrophy and normal groups (P < 0.05). Conclusion The expression of P450arom mBNA in pubertal mammary hypertrophy are significantly higher than in normal mammary glandular tissue. The pubertal mammary hypertrophy may be related to the expression status of P450arom mRNA within breast tissue.