【作者】 卢建建；

【导师】 归来； 滕利；

【作者基本信息】 中国协和医科大学 ， 整形外科， 2008， 博士

【摘要】 目的探讨PS2蛋白、PS2mRNA和P450arom、P450arommRNA在青春期乳房肥大症乳腺组织中的表达及意义。方法应用Western Blo和RT-PCR的方法测定15例青春期乳房肥大症乳腺组织中PS2蛋白、PS2mRNA和P450arom、P450arommRNA的表达情况,并与10例原发性小乳症和15例正常乳腺组织中的PS2蛋白、PS2mRNA和P450arom、P450arommRNA进行对比,探讨PS2和P450arom与青春期乳房肥大症发生、发展的关系,为乳房肥大症的诊断、治疗和预防提供理论依据。结果PS2蛋白、PS2mRNA和P450arom、P450arommRNA的阳性表达率在乳房肥大组、小乳对照组和正常乳腺组间无统计学差异(P＞0.05)。PS2蛋白、PS2mRNA和P450arom、P450arommRNA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分别为0.515±0.112、0.424±0.139、0.198±0.060和0.202±0.048;原发性小乳症乳腺组织中的平均测定值分别为0.254±0.097、0.169±0.055、0.139±0.028和0.146±0.034;正常乳腺组织中的平均测定值分别为0.214±0.078、0.163±0.051、0.144±0.072和0.159±0.068。PS2蛋白、PS2mRNA和P450arom、P450arommRNA的阳性表达率在各组间均无统计学差异,但乳房肥大组的PS2蛋白、PS2mRNA和P450arom、P450arommRNA平均测定值高于小乳对照组(P＜0.01/P＜0.01/P＜0.05/P＜0.05),乳房肥大组的PS2蛋白、PS2mRNA和P450arom、P450arommRNA平均测定值高于正常对照组(P＜0.01/P＜0.01/P＜0.05/P＜0.05)。结论青春期乳房肥大症的发生、发展与乳腺组织中PS2蛋白、PS2mRNA和P450arom、P450arommRNA的表达情况有关。更多还原

【Abstract】 Objective To investigate the expression status of the PS2, PS2mRNA, P450arom, P450arommRNA 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. The selection criterion was weight of the excised breast gland greater than 350 g. Patients were excluded if they had any of the following conditions: irregular menstrual cycle; history of pregnancy; hormonal treatment within at least 2 months; nipple discharge from either breast; cyst or fluid and milk concentration in the gland; family history of breast cancer; history of unilateral breast cancer, fibroadenoma or atypical hyperplasia. 10 patients with micromastia were used as a control group. The tissue specimens were obtained during the augmentation mammaplasty. 15 patients with pathologically simple fibroadenoma were used as another control group. The tissue specimens were obtained 3cm away from the fibroadenoma during the tumorectomy. These patients also met the conditions mentioned above. The reduction mammaplasty, augmentation mammaplasty and tumorectomy procedures were performed during the follicular phase of the menstrual cycle. Patient approval of participation in this study was obtained preoperatively. The expression of PS2 , PS2mRNA, P450arom, P450arommRNA was detected by Western Blot and RT-PCR in all the cases above. Results There was no significant difference among the pubertal mammary hypertrophy groups、micromastia groups and normal groups on the expression rates of PS2、PS2mRNA、P450arom、P450arommRNA. But among the positive cases, the expression of PS2、PS2mRNA、P450arom、P450arommRNA within breast tissue were respectively 0.515±0.112. 0.424±0.139. 0.198±0.060. 0.202±0.048 in pubertal mammary hypertrophy group; and 0.254±0.097、0.169±0.055、0.139±0.028、0.146±0.034 in micromastia group, and 0.214±0.078、0.163±0.051、0.144±0.072、0.159±0.068 in normal group. There was significant difference between the pubertal mammary hypertrophy and micromastia groups (P<0.01/ P<0. 01/P <0. 05/P < 0.05) and there was also significant difference between the pubertal mammary hypertrophy and normal groups (P<0.01/ P<0.01/P < 0.05/P <0.05) . Conclusion The expression of PS2, PS2mRNA, P450arom, P450arommRNA in pubertal mammary hypertrophy are significantly higher than in micromastia and in normal mammary glandular tissue. The pubertal mammary hypertrophy may be related to the expression status of PS2, PS2mRNA, P450arom, P450arommRNA within breast tissue.更多还原