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GWAS Study

A genome-wide association study of DSM-IV cannabis dependence.

Agrawal A, Lynskey MT, Hinrichs A et al.

21668797 PubMed ID
GWAS Study Type
3054 Participants
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Chapter I

Publication Details

Comprehensive information about this research publication

Authors

AA
Agrawal A
LM
Lynskey MT
HA
Hinrichs A
GR
Grucza R
SS
Saccone SF
KR
Krueger R
NR
Neuman R
HW
Howells W
FS
Fisher S
FL
Fox L
CR
Cloninger R
DD
Dick DM
DK
Doheny KF
EH
Edenberg HJ
GA
Goate AM
HV
Hesselbrock V
JE
Johnson E
KJ
Kramer J
KS
Kuperman S
NJ
Nurnberger JI
PE
Pugh E
SM
Schuckit M
TJ
Tischfield J
RJ
Rice JP
BK
Bucholz KK
BL
Bierut LJ
Chapter II

Abstract

Summary of the research findings

Despite twin studies showing that 50-70% of variation in DSM-IV cannabis dependence is attributable to heritable influences, little is known of specific genotypes that influence vulnerability to cannabis dependence. We conducted a genome-wide association study of DSM-IV cannabis dependence. Association analyses of 708 DSM-IV cannabis-dependent cases with 2346 cannabis-exposed non-dependent controls was conducted using logistic regression in PLINK. None of the 948 142 single nucleotide polymorphisms met genome-wide significance (P at E-8). The lowest P values were obtained for polymorphisms on chromosome 17 (rs1019238 and rs1431318, P values at E-7) in the ANKFN1 gene. While replication is required, this study represents an important first step toward clarifying the biological underpinnings of cannabis dependence.

708 African American or European ancestry cases, 2,346 African American or European ancestry controls

Chapter III

Study Statistics

Key metrics and study information

3054
Total Participants
GWAS
Study Type
No
Replicated
European, African American or Afro-Caribbean
Ancestry
U.S.
Recruitment Country
Chapter IV

Analysis

Comprehensive review of health and genetic findings

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