Hamann H A, Croyle R T, Venne V L, Baty B J, Smith K R, Botkin J R
Department of Psychology, University of Utah, Salt Lake City, Utah, USA.
Am J Med Genet. 2000 May 1;92(1):25-32.
Advances in molecular biology and genetics have led to the identification of the breast/ovarian cancer susceptibility genes BRCA1 and BRCA2, along with tests to detect mutations in these genes. Although the appropriateness of BRCA1/2 genetic testing for children has been debated in the literature, little is known about the attitudes of individuals who have undergone cancer susceptibility testing. The present study focused on attitudes toward BRCA1 testing for children among 218 adults from a Utah-based kindred who had received BRCA1 test results. Results indicated that approximately one-fourth of the participants would permit BRCA1 testing for children under the age of 18. General attitudes about genetic testing were predictive of attitudes toward the testing of children. In addition, men and individuals without a BRCA1 mutation were more likely to agree that minors should be allowed BRCA1 testing. Individuals whose mother had been affected with breast cancer were less likely to permit testing for minors. Among parents of minor children, less than one-fifth indicated that they would want BRCA1 testing for their own children; carrier status was not predictive of attitudes toward testing their own children. As breast/ovarian cancer susceptibility testing continues to be disseminated into clinical settings, there may be an increase in the number of test requests for minors. The findings of the present study represent an important step in exploring attitudes about genetic testing of children among individuals who have received cancer susceptibility test results.
分子生物学和遗传学的进展已促使人们识别出乳腺癌/卵巢癌易感基因BRCA1和BRCA2,以及检测这些基因中突变的测试方法。尽管BRCA1/2基因检测对儿童是否适用在文献中一直存在争议,但对于接受过癌症易感性检测的个人的态度却知之甚少。本研究聚焦于来自犹他州一个家族的218名成年人对儿童BRCA1检测的态度,这些人已收到BRCA1检测结果。结果表明,约四分之一的参与者会允许对18岁以下儿童进行BRCA1检测。对基因检测的总体态度可预测对儿童检测的态度。此外,男性和没有BRCA1突变的个体更有可能同意应允许未成年人进行BRCA1检测。母亲曾患乳腺癌的个体不太可能允许对未成年人进行检测。在未成年子女的父母中,不到五分之一表示他们希望为自己的孩子进行BRCA1检测;携带者状态并不能预测对自己孩子检测的态度。随着乳腺癌/卵巢癌易感性检测继续在临床环境中推广,未成年人检测请求的数量可能会增加。本研究结果是探索接受癌症易感性检测结果的个体对儿童基因检测态度的重要一步。