有几个研究组都在致力于研究更好的方法检测早期阿尔茨海默病，以开发在它造成太大破坏之前能治疗它的药物。
Several teams are working on better ways to detect early-stage Alzheimer's disease in hopes of developing drugs that can fight it before it causes too much damage.
背景及目的：粪便中脱落细胞及其核d NA含量的检测有可能成为大肠癌筛查及早期诊断的无创途径。
Background and Objectives: Detection of colorectal exfoliated epithelial cells and their nuclear DNA content may provide another non-invasive way of screening and early diagnosis of colorectal cancer.
循环dna和肿瘤细胞端粒酶的联合检测，对于肿瘤早期诊断有重要意义。
The combinational detection of circulating DNA and telomerase of circulating tumor cells is useful for the early diagnosis of tumors.
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