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Table 1 Newborns with a positive second-tier screening for citrin deficiency

From: Newborn screening for citrin deficiency and carnitine uptake defect using second-tier molecular tests

No.

First DBS citrulline (μM)

Mutation analysis

Diagnosis

1

17.31

c.851_854del /IVS6+5 G>A

NICCD

2

15.5

c.851_854del /IVS6+5 G>A

NICCD

3

18.89

c.851_854del He

Negative

4

18.36

c.851_854del He

Negative

5

17.16

c.851_854del He

Negative

6

15.06

c.851_854del He

Negative

7

13.76

c.1638_1660dup23 He

Negative

8

5.03

c.851_854del He

Negative

9

5.01

c.851_854del He

Negative

  1. NICCD: neonatal intrahepatic cholestasis caused by citrin deficiency.