ArticleNicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco2020
Genome-Wide Meta-Analyses of FTND and TTFC Phenotypes.
Article in Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed, 24 citations in OpenAlex.
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- Genetics of constant and severe pain in the NAPS2 cohort of recurrent acute and chronic pancreatitis patients.The journal of pain · 2025Article
- Nicotine Exposure in a Phencyclidine-Induced Mice Model of Schizophrenia: Sex-Selective Medial Prefrontal Cortex Protein Markers of the Combined Insults in Adolescent Mice.International journal of molecular sciences · 2023Article
- Cross-Sectional Gene-Smoking Interaction Analysis in Relation to Subclinical Atherosclerosis-Results From the IMPROVE Study.Circulation. Genomic and precision medicine · 2023Article
- Dissecting the epigenomic differences between smoking and nicotine dependence in a veteran cohort.Addiction biology · 2023Article
- Genetic insights into smoking behaviours in 10,558 men of African ancestry from continental Africa and the UK.Scientific reports · 2022Article
- Genetics of substance use disorders in the era of big data.Nature reviews. Genetics · 2021Review
- Ongoing controversies and recent insights of the ARMS2-HTRA1 locus in age-related macular degeneration.Experimental eye research · 2021Review
- Clarifying the Genetic Influences on Nicotine Dependence and Quantity of Use in Cigarette Smokers.Behavior genetics · 2021Article
- Current advances in research in treatment and recovery: Nicotine addiction.Science advances · 2019Review
Corrections and comments
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Authors and funding
46 authors at 20 institutions in 6 countries.
Funding
Abstract
introductionFTND (Fagerstrӧm test for nicotine dependence) and TTFC (time to smoke first cigarette in the morning) are common measures of nicotine dependence (ND). However, genome-wide meta-analysis for these phenotypes has not been reported.
methodsGenome-wide meta-analyses for FTND (N = 19,431) and TTFC (N = 18,567) phenotypes were conducted for adult smokers of European ancestry from 14 independent cohorts.
resultsWe found that SORBS2 on 4q35 (p = 4.05 × 10-8), BG182718 on 11q22 (p = 1.02 × 10-8), and AA333164 on 14q21 (p = 4.11 × 10-9) were associated with TTFC phenotype. We attempted replication of leading candidates with independent samples (FTND, N = 7010 and TTFC, N = 10 061), however, due to limited power of the replication samples, the replication of these new loci did not reach significance. In gene-based analyses, COPB2 was found associated with FTND phenotype, and TFCP2L1, RELN, and INO80C were associated with TTFC phenotype. In pathway and network analyses, we found that the interconnected interactions among the endocytosis, regulation of actin cytoskeleton, axon guidance, MAPK signaling, and chemokine signaling pathways were involved in ND.
conclusionsOur analyses identified several promising candidates for both FTND and TTFC phenotypes, and further verification of these candidates was necessary. Candidates supported by both FTND and TTFC (CHRNA4, THSD7B, RBFOX1, and ZNF804A) were associated with addiction to alcohol, cocaine, and heroin, and were associated with autism and schizophrenia. We also identified novel pathways involved in cigarette smoking. The pathway interactions highlighted the importance of receptor recycling and internalization in ND. IMPLICATIONS: Understanding the genetic architecture of cigarette smoking and ND is critical to develop effective prevention and treatment. Our study identified novel candidates and biological pathways involved in FTND and TTFC phenotypes, and this will facilitate further investigation of these candidates and pathways.
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