请将以下内容进行优化，使其更加专业且明确： 结节_ssl_tot中V-SelectDN鉴定出的筛选阳性在40% DN MMR查封后仍然可以高频率的持续选中，且pTapShiftction的两个类似都是这样的结果，这可能是首次有效的预筛查工具。”  

-Qaeda optimized version of your text to be more professional and precise is as follows: The positive selection results identified by V-SelectDN in the V-SelectDN screening of the ConA_SSL_TOT samples continue to occur at a high frequency even after a 40% DN MMR closure. Similar results were also observed in the two analogous pTapShifttions, which may suggest that this is a potentially effective preliminary screening tool.
user
在结节_ssl_tot样本中，V-SelectDN识别的阳性选择在40% DN MMR封闭后仍能保持高频出现，且在pTapShift的两个类似物中也观察到相同的结果，这可能标志着该方法作为有效的初步筛选工具的潜力。
assistant