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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Eur+J+Hum+Genet
2016 ; 24
(6
): 817-22
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Genetic investigations of sudden unexpected deaths in infancy using
next-generation sequencing of 100 genes associated with cardiac diseases
#MMPMID26350513
Hertz CL
; Christiansen SL
; Larsen MK
; Dahl M
; Ferrero-Miliani L
; Weeke PE
; Pedersen O
; Hansen T
; Grarup N
; Ottesen GL
; Frank-Hansen R
; Banner J
; Morling N
Eur J Hum Genet
2016[Jun]; 24
(6
): 817-22
PMID26350513
show ga
Sudden infant death syndrome (SIDS) is the most frequent manner of post-perinatal
death among infants. One of the suggested causes of the syndrome is inherited
cardiac diseases, mainly channelopathies, that can trigger arrhythmias and sudden
death. The purpose of this study was to investigate cases of sudden unexpected
death in infancy (SUDI) for potential causative variants in 100
cardiac-associated genes. We investigated 47 SUDI cases of which 38 had
previously been screened for variants in RYR2, KCNQ1, KCNH2 and SCN5A. Using the
Haloplex Target Enrichment System (Agilent) and next-generation sequencing (NGS),
the coding regions of 100 genes associated with inherited channelopathies and
cardiomyopathies were captured and sequenced on the Illumina MiSeq platform.
Sixteen (34%) of the SUDI cases had variants with likely functional effects,
based on conservation, computational prediction and allele frequency, in one or
more of the genes screened. The possible effects of the variants were not
verified with family or functional studies. Eight (17%) of the SUDI cases had
variants in genes affecting ion channel functions. The remaining eight cases had
variants in genes associated with cardiomyopathies. In total, one third of the
SUDI victims in a forensic setting had variants with likely functional effect
that presumably contributed to the cause of death. The results support the
assumption that channelopathies are important causes of SUDI. Thus, analysis of
genes associated with cardiac diseases in SUDI victims is important in the
forensic setting and a valuable supplement to the clinical investigation in all
cases of sudden death.