Introduction: Cell-free DNA (cfDNA) methylation is an important molecular biomarker, which provides information about the regulation of gene expression in the tissue of origin. There is an inverse correlation between SOST gene methylation and expression levels.

中文翻译：

---

血清游离DNA中硬化蛋白（SOST）基因的甲基化：一种新的骨生物标记？

简介：无细胞DNA（cfDNA）甲基化是重要的分子生物标记，可提供有关起源组织中基因表达调控的信息。SOST基因甲基化与表达水平之间呈负相关。