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. 2021 Oct 6;11:19878. doi: 10.1038/s41598-021-99139-6

Table 2.

Expression of key ABC transporters associated with drug efflux at placental and blood–brain barriers in control tissue.

Gene Placenta Brain Choroid plexus
E19 E19 P5 Adult (male) Adult (female) E19 P5 Adult (male) Adult (female)
Abcb1a 79 8 12 51 50 2 2 2 1
Abcb1b 211 4 4 0.8 0.6 2 1 0.4 0.6
Abcc1 48 22 23 7 7 32 28 88 102
Abcc2 15 3 4 5 5 0.7 0.6 2 2
Abcc3 12 1 1 1 2 9 10 2 2
Abcc4 46 10 15 13 12 19 24 90 115
Abcc5 32 90 62 107 116 77 60 52 45
Abcg2 25 2 6 9 22 3 3 0.6 1

Values are average counts per million (CPM; n = 4) measured by RNAseq and analysed using EdgeR.