One group of methylated genes and detection method thereof
A detection method and methylation technology, applied in the field of medical detection, can solve the problems of low early diagnosis rate, invasiveness, and large damage, and achieve the effect of high sensitivity and specificity, and simple operation.
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[0079] Example 1. The methylation detection of p16, DLEC1, CDH1, DAPK and RUNX3 genes in all the above plasma samples.
[0080] In this embodiment, the nMSP method is used to detect the methylation status of the above five genes, and the specific steps are as follows:
[0081] Step 1: Separation and storage of plasma samples:
[0082] Among all the above blood samples, about 20ml of peripheral blood is taken from each patient or normal person, and immediately stored in a refrigerator at 4°C for a short period of time (about 1h) to facilitate subsequent plasma separation.
[0083] Put two anticoagulation tubes each containing about 10ml of peripheral blood samples in a low-speed centrifuge, and then centrifuge at 2500 rpm at 4°C for 15 minutes to separate the samples into three layers (ie, plasma, white blood cells, and red blood cells). Use a pipette to carefully and gently aspirate the uppermost plasma in the anticoagulation tube (aspirate 2 / 3) and place it in a new 15ml centrifuge t...
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