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Figure 1 | Clinical Proteomics

Figure 1

From: Direct and rapid mass spectral fingerprinting of maternal urine for the detection of Down syndrome pregnancy

Figure 1

Example MALDI Tof mass spectral profiles of maternal urine between ~ 5,000 and 16,000 m/z. A: non-aneuploid pregnancy at 13,4 weeks gestation; B, C & D: Trisomy 21/Down syndrome, aneuploidy samples at 13,3 Weeks, 12,4 weeks and 16,6 weeks gestation. Large blue arrows indicate regions of additional peaks at 11,000 – 12,000 m/z and the orthogonal stretched bracket indicate regions of ~ 6,500 – 8,750 m/z that are less abundant in the Down syndrome samples.

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