. 2017 Jul 12;12(6):528–533. doi: 10.1016/j.jtumed.2017.06.002

Table 2.

Mean expression of placental ET-1.

Variable	Mean ± SD	p-value
Normal mice	3.4 ± 1.52^a
Preeclampsia mouse model	15.0 ± 2.55^b
Preeclampsia mouse model + NS 500 mg	12.4 ± 2.07^a	0.000
Preeclampsia mouse model + NS 1000 mg	7.6 ± 1.52^a
Preeclampsia mouse model + NS 1500 mg	5.0 ± 0.71^a
Preeclampsia mouse model + NS 2000 mg	2.2 ± 0.84^a

The different letter of superscript indicates a significant different between treatment.