Abstract：
:The first genome-wide association study of human memory identified an association between a common T/C polymorphism of the KIBRA gene (rs17070145) and episodic memory performance in normal individuals; subsequent studies have implicated the same polymorphism in Alzheimer's disease. Since impaired neurocognitive performance, including memory, may be both a core feature of schizophrenia and a candidate endophenotype, we attempted to replicate this association in a total sample of 544 subjects (including patients with psychosis, their unaffected relatives as well as normal individuals). In the combined sample there was a significant association between the KIBRA T allele and better performance in the single principle component of the memory measures, which included immediate and delayed logical and visual memory from the Wechsler Memory Scale (p=0.019). In the unaffected individuals (patients' relatives and healthy controls) we observed an association of KIBRA with immediate and delayed logical memory (p=0.020 and 0.025, respectively), while in patients with psychosis with delayed visual memory (p=0.05). This study replicates the association between the KIBRA gene and episodic memory and suggests a possibly differential effect of the polymorphism in psychotic and non-psychotic individuals.
journal_name
J Psychiatr Resjournal_title
Journal of psychiatric researchauthors
Vassos E,Bramon E,Picchioni M,Walshe M,Filbey FM,Kravariti E,McDonald C,Murray RM,Collier DA,Toulopoulou Tdoi
10.1016/j.jpsychires.2010.01.012subject
Has Abstractpub_date
2010-09-01 00:00:00pages
795-8issue
12eissn
0022-3956issn
1879-1379pii
S0022-3956(10)00021-Xjournal_volume
44pub_type
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