ABCMdb

PMID: 16202789

Parad RB, Comeau AM
Diagnostic dilemmas resulting from the immunoreactive trypsinogen/DNA cystic fibrosis newborn screening algorithm.
J Pediatr. 2005 Sep;147(3 Suppl):S78-82., [PubMed]

Sentences

No. Mutations Sentence Comment

65 ABCC7 p.Gly551Asp ABCC7 p.Gly551Asp ABCC7 p.Arg117His ABCC7 p.Arg117His ABCC7 p.Arg117His ABCC7 p.Arg117His ABCC7 p.Arg117His ABCC7 p.Arg117His ABCC7 p.Trp1282* ABCC7 p.Leu206Trp ABCC7 p.Gly85Glu ABCC7 p.Gly85Glu ABCC7 p.Arg117Cys ABCC7 p.Arg117Cys ABCC7 p.Arg117Cys Two infants with DF508/5T and borderline sweat chloride values were not included in the count of the true positive cohort, however follow-up continues Group IRT (mg/ml) IRT % CFTR Allele 1 CFTR Allele 2 [Cl2 ] mEq/L Sex I 64 97 DF508 R117H-7T 34 F 179 100 DF508 R117H-7T 33 F 79 99 DF508 R117H-7T 49 M 97 99 W1282X 3849110kb 54 M II 176 99.8 DF508 R117H-7T 24 F 129 99.7 G85E R117H 21 F 84 99 G551D R117H-7T 27 M III 94 99.1 DF508 unknown 58 M* 142 100 G85E R117C 33 F 72 98 G551D R117C 46 F 100 99.2 DF508 L206W 35 M IV 141 100 G85Ey R117C 41 M *Identified twin sibling has [Cl2 ] > 60 mEq/L. Login to comment 66 ABCC7 p.Gly85Glu yThis mutation was not initially detected because G85E was not included in the original MA CF NBS program multimutation panel. Login to comment 103 ABCC7 p.Arg117His Modification of the mutation panel to exclude pancreatic sufficient mutations not associated with classic CF (eg, R117H) so that elevated IRT level and at least 1 severe mutation became the screening gate that would allow infants to proceed to sweat testing is another potential solution. Login to comment