Deprecated: Implicit conversion from float 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Warning: imagejpeg(C:\Inetpub\vhosts\kidney.de\httpdocs\phplern\25112195
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Genet+Epidemiol
2014 ; 38 Suppl 1
(0 1
): S86-91
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Pathway analysis approaches for rare and common variants: insights from Genetic
Analysis Workshop 18
#MMPMID25112195
Aslibekyan S
; Almeida M
; Tintle N
Genet Epidemiol
2014[Sep]; 38 Suppl 1
(0 1
): S86-91
PMID25112195
show ga
Pathway analysis, broadly defined as a group of methods incorporating a priori
biological information from public databases, has emerged as a promising approach
for analyzing high-dimensional genomic data. As part of Genetic Analysis Workshop
18, seven research groups applied pathway analysis techniques to whole-genome
sequence data from the San Antonio Family Study. Overall, the groups found that
the potential of pathway analysis to improve detection of causal variants by
lowering the multiple-testing burden and incorporating biologic insight remains
largely unrealized. Specifically, there is a lack of best practices at each stage
of the pathway approach: annotation, analysis, interpretation, and follow-up.
Annotation of genetic variants is inconsistent across databases, incomplete, and
biased toward known genes. At the analysis stage insufficient statistical power
remains a major challenge. Analyses combining rare and common variants may have
an inflated type I error rate and may not improve detection of causal genes.
Inclusion of known causal genes may not improve statistical power, although the
fraction of explained phenotypic variance may be a more appropriate metric.
Interpretation of findings is further complicated by evidence in support of
interactions between pathways and by the lack of consensus on how to best
incorporate functional information. Finally, all presented approaches warranted
follow-up studies, both to reduce the likelihood of false-positive findings and
to identify specific causal variants within a given pathway. Despite the initial
promise of pathway analysis for modeling biological complexity of disease
phenotypes, many methodological challenges currently remain to be addressed.