作者: Yasuko Hisano , Shusuke Numata , Manabu Toyoshima , Hisako Ohba , Tetsuro Ohmori
DOI: 10.1101/2020.10.29.360180
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摘要: Abstract We previously identified quantitative trait loci (QTL) for prepulse inhibition (PPI), an endophenotype of schizophrenia, on mouse chromosome 10 and reported Fabp7 as a candidate gene from analysis F2 mice inbred strains with high (C57BL/6N; B6) low (C3H/HeN; C3H) PPI levels. Here, we reanalyzed the QTLs increased marker density. The highest LOD score (26.66) peaked at synonymous coding splice-site variant, c.753G>A (rs257098870), in Cdh23 10; c.753G (C3H) allele showed PPI-lowering effect. Bayesian multiple QTL mapping also supported same variant posterior probability 1. Thus, engineered into B6 genetic background, which led to dampened PPI. revealed e-QTL (expression-QTL) effect imparted by expression brain. In human study, homologous (c.753G>A; rs769896655) CDH23 nominally significant enrichment individuals schizophrenia. potentially deleterious variants Collectively, present study reveals PPI-regulating possible contribution schizophrenia susceptibility.