Table 2. Dysregulated microRNAs in sera or plasma samples in patients with colorectal cancer.

Source	Dysregulation	Number of studies	microRNAs and references
Sera	Upregulated	3	miR-92a[85, 148, 149]; miR-221[149–151]
		2	miR-21[45, 152]; miR-210[85, 149]
		1	miR-19a[149]; miR-22*[149]; miR-24[149]; miR-92[153]; miR-125a-5p[149]; miR-134[150]; miR-141[154]; miR-146a[150]; miR-320a[85]; miR-376a[149]; miR-378[85]; miR-423-5p[85]; let-7e[149] ; miR-222[150]; miR-423-5p[85]
	Downregulated	2	miR-143[85, 89]
		1	miR-10a[149]; miR-103[85]; miR-106a[85], miR-107[85]; miR-141[149]; miR-145[96]; miR-150[149]; miR-151-5p[85]; miR-188-3p[149]; miR-192[149]; miR-199a-3p[85]; miR-224*[149]; miR-382[85]; miR-425*[149]; miR-495[149]; miR-572[149]; miR-601[149]; miR-720[149]; miR-760[149]; let-7a[149]; let-7d[85]