Association of CHRM2 with IQ: Converging evidence for a gene influencing intelligence

Dick D. M., Aliev F., Kramer J., Wang J. C., Hinrichs A., Bertelsen S., ...Daha Fazla

BEHAVIOR GENETICS, cilt.37, sa.2, ss.265-272, 2007 (SCI-Expanded, SSCI, Scopus) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 37 Sayı: 2
  • Basım Tarihi: 2007
  • Doi Numarası: 10.1007/s10519-006-9131-2
  • Dergi Adı: BEHAVIOR GENETICS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Social Sciences Citation Index (SSCI), Scopus
  • Sayfa Sayıları: ss.265-272
  • Anahtar Kelimeler: intelligence, IQ, CHRM2, cognitive ability, genetics, association analyses, QUANTITATIVE-TRAIT LOCUS, VIQ-PIQ DIFFERENCES, GENOME-WIDE SCAN, COGNITIVE-ABILITY, WAIS-R, LINKAGE, DISEQUILIBRIUM, POLYMORPHISMS, TRANSCRIPTION, CHILDREN
  • Ankara Üniversitesi Adresli: Hayır

Özet

The cholinergic neurotransmitter system is thought to be involved in many aspects of memory, attention, and higher cognition. In the Collaborative Study on the Genetics of Alcoholism (COGA) sample, we have previously reported linkage and association to the cholinergic muscarinic 2 receptor gene (CHRM2) on chromosome 7 with evoked EEG oscillations (Jones et al. 2004), providing evidence that this gene may be involved in human brain dynamics and cognition. In addition, a small number of genetic markers were genotyped in CHRM2 in the Minnesota Twin and Family Study (Comings et al. 2003) and a Dutch family study (Gosso et al. 2006, in press) and both research groups found evidence that this gene may be involved in intelligence. In the COGA sample, we have extensively genotyped SNPs within and flanking the CHRM2 gene. We find evidence of association with multiple SNPs across CHRM2 and Performance IQ, as measured by the Wechsler Adult Intelligence Scale-Revised (WAIS-R). These results remain significant after taking into account alcohol dependence and depression diagnoses in the sample.