Fig. 6From: Human placental proteomics and exon variant studies link AAT/SERPINA1 with spontaneous preterm birthPlacental mRNA expression of SERPINA1 in spontaneous preterm birth and spontaneous term birth. Relative mRNA expression of SERPINA1 in basal plate of the placenta. mRNA levels were normalized against the housekeeping gene CYC1. Statistical analysis was performed with Mann–Whitney U test to discover differences. Quartiles represented by box and whiskers. Ends of whiskers represent minimum and maximum values. Inside the box, median is indicated with a line and mean value is represented with a squareBack to article page