Table 1.

The primers used in qPCR

Genes	Forword primers	Reverse primers
Flu A	GACCAATCCTGTCACCTCTGAC	AGCTGAGTGCGACCTCCTTAG
Claudin 5	CTCTGCTGGTTCGCCAACAT	CAGCTCGTACTTCTGCGACA
Occludin	ACAAGCGGTTTTATCCAGAGTC	GTCATCCACAGGCGAAGTTAAT
VE-cadherin	TTGGAACCAGATGCACATTGAT	TCTTGCGACTCACGCTTGAC
β-actin	CTCCATCCTGGCCTCGCTGT	GCTGTCACCTTCACCGTTCC

The table shows all the primers used for qPCR, and the primers are written in the order from 5′ to 3′