Placental Oxidative Status throughout Normal Gestation in Women with Uncomplicated Pregnancies

Table 1

Placental MDA and TAC levels throughout normal gestation.

Groups		MDA	TAC	Age
		(pmol/mg tissue)	(μmol Trolox equivalent/mg tissue)	(yrs)
First trimester	106	277.01 ± 204.66	498.62 ± 400.74	26.77 ± 6.27
Second trimester	48	202.66 ± 185.05	454.90 ± 374.44	25.87 ± 6.50
Third trimester	47	176.97 ± 141.61	912.19 ± 586.21	26.83 ± 6.33

MDA: malondialdehyde; TAC: total antioxidant capacity. Data expressed as mean ± SD.
Placental MDA levels were highest in the first trimester and progressively declined thereafter, while TAC levels showed a significant increase beyond the second trimester of normal pregnancy.