scholarly journals Exploring the genetic overlap of suicide-related behaviors and substance use disorders

Author(s):  
Sarah Mary Carlton Colbert ◽  
Alexander S Hatoum ◽  
Andrey Shabalin ◽  
Hilary Coon ◽  
Elliot Nelson ◽  
...  

Background: Suicide-related behaviors are heterogeneous and transdiagnostic, and may demonstrate varying levels of genetic overlap with different substance use disorders (SUDs). Methods: We used linkage disequilibrium score regression and genomic structural equation models to examine the genetic relationships between several SUDs and suicide-related behaviors. Our analyses incorporated summary statistics from the largest genome-wide association studies (GWAS) of problematic alcohol use (PAU), the Fagerstrom Test for Nicotine Dependence (FTND), cannabis use disorder (CUD), and opioid use disorder (OUD; Ns ranging from 46,213-435,563) and GWAS of ever self-harmed, suicide attempt, and suicide death (Ns ranging from 18,223-117,733). We also accounted for genetic liability to depression (N=500,199) and risk tolerance (N=315,894). Results: Ever self-harmed correlated most strongly with CUD (rg=0.60) and suicide death correlated most strongly with OUD (rg=0.53). Suicide attempt correlated similarly with all SUDs. Simultaneously correlating a common SUD factor with each specific suicide indicator while controlling for depression and risk tolerance revealed significant, positive genetic correlations between all SUDs and suicide-related behaviors (rg=0.26-0.46). Discussion: Our findings suggest that genetic and behavioral contributions to suicide death may somewhat differ from non-lethal suicide-related behaviors. Additionally, we identify a general level of genetic overlap between SUDs and suicide-related behaviors which is independent of depression and risk tolerance.

2015 ◽  
Vol 38 (3) ◽  
pp. e282-e291 ◽  
Author(s):  
Jalal Poorolajal ◽  
Tahereh Haghtalab ◽  
Mehran Farhadi ◽  
Nahid Darvishi

2016 ◽  
Vol 3 (4) ◽  
Author(s):  
Dr Vaddadi. Venkata kiran ◽  
Dr. Neeli Uma Jyothi ◽  
Mounica. Bollu

Suicide attempt is a deliberate act of self harm with at least some intent of die that does not result in death. Such act has a wide range of medical seriousness. Individuals with psychiatric disorders are far more likely to commit suicide than the others. People who are psychologically disabled are often commit suicide from years of pain, frustration and depression. Spiritually they may perceive themselves as hopelessly damaged and lose all sense of purpose and meaning of life. Suicide is not a diagnosis or a disorder. it is a behaviour. Suicide is a worldwide, national, local and familial problem. 90% of people who kill themselves suffer from a diagnosable and preventable problem such as depression co-occurring mental and substance use disorders are common and potent combination among those who die by suicide.


2019 ◽  
Author(s):  
Hang Zhou ◽  
Julia M. Sealock ◽  
Sandra Sanchez-Roige ◽  
Toni-Kim Clarke ◽  
Daniel Levey ◽  
...  

AbstractProblematic alcohol use (PAU) is a leading cause of death and disability worldwide. Although genome-wide association studies (GWASs) have identified PAU risk genes, the genetic architecture of this trait is not fully understood. We conducted a proxy-phenotype meta-analysis of PAU combining alcohol use disorder and problematic drinking in 435,563 European-ancestry individuals. We identified 29 independent risk variants, 19 of them novel. PAU was genetically correlated with 138 phenotypes, including substance use and psychiatric traits. Phenome-wide polygenic risk score analysis in an independent biobank sample (BioVU, n=67,589) confirmed the genetic correlations between PAU and substance use and psychiatric disorders. Genetic heritability of PAU was enriched in brain and in genomic conserved and regulatory regions. Mendelian randomization suggested causal effects on liability to PAU of substance use, psychiatric status, risk-taking behavior, and cognitive performance. In summary, this large PAU meta-analysis identified novel risk loci and revealed genetic relationships with numerous other outcomes.


Crisis ◽  
2019 ◽  
Vol 40 (3) ◽  
pp. 166-175 ◽  
Author(s):  
Alexandre Mikhail ◽  
Omaid Tanoli ◽  
Gilles Légaré ◽  
Pierre-André Dubé ◽  
Youssef Habel ◽  
...  

Abstract. Background: Over-the-counter (OTC) analgesics are frequently used in suicide attempts. Accessibility, toxicity, and unsupervised acquisition of large amounts may be facilitators. Aims: To identify patient characteristics associated with OTC drug use as a suicide attempt method among adults. Method: A cross-sectional study was conducted using chart review of all individuals who presented to the emergency department (ED) of two adult general hospitals following a suicide attempt during 2009–2010 in Montreal, Canada. Results: Among the 369 suicide attempters identified, 181 used overdosing, 47% of whom used OTC drugs. In logistic regression, women and those with medical comorbidity were more likely to use overdosing, while those with substance use disorders were less likely to do so. Among those who overdosed, women were more likely to use OTC drugs, while those who were Caucasian, had children, comorbidities, diagnoses with substance use disorders, and made attempts in the Fall were less likely to do so. Substances most frequently used were: acetaminophen among OTC drugs (30%); antidepressants (37%), anxiolytics (30%), opioids (10%), and anticonvulsants (9%) among prescription drugs; and cocaine (10%) among recreational drugs. Limitations: Reasons for the suicide method choice were not available. Conclusion: OTC drugs, in particular acetaminophen, are frequently used in suicide attempts. Accessibility to these drugs may be an important contributor.


2015 ◽  
Vol 46 ◽  
pp. 70-76 ◽  
Author(s):  
Kimberly H. McManama O'Brien ◽  
Christopher P. Salas-Wright ◽  
Michael G. Vaughn ◽  
Mary LeCloux

Addiction ◽  
2014 ◽  
Vol 109 (12) ◽  
pp. 2118-2127 ◽  
Author(s):  
Lauren R. Few ◽  
Julia D. Grant ◽  
Timothy J. Trull ◽  
Dixie J. Statham ◽  
Nicholas G. Martin ◽  
...  

2020 ◽  
Vol 46 (5) ◽  
pp. 1317-1326 ◽  
Author(s):  
Huijuan Li ◽  
Chuyi Zhang ◽  
Xin Cai ◽  
Lu Wang ◽  
Fang Luo ◽  
...  

Abstract Creativity represents one of the most important and partially heritable human characteristics, yet little is known about its genetic basis. Epidemiological studies reveal associations between creativity and psychiatric disorders as well as multiple personality and behavioral traits. To test whether creativity and these disorders or traits share genetic basis, we performed genome-wide association studies (GWAS) followed by polygenic risk score (PRS) analyses. Two cohorts of Han Chinese subjects (4,834 individuals in total) aged 18–45 were recruited for creativity measurement using typical performance test. After exclusion of the outliers with significantly deviated creativity scores and low-quality genotyping results, 4,664 participants were proceeded for GWAS. We conducted PRS analyses using both the classical pruning and thresholding (P+T) method and the LDpred method. The extent of polygenic risk was estimated through linear regression adjusting for the top 3 genotyping principal components. R2 was used as a measurement of the explained variance. PRS analyses demonstrated significantly positive genetic overlap, respectively, between creativity with schizophrenia ((P+T) method: R2(max) ~ .196%, P = .00245; LDpred method: R2(max) ~ .226%, P = .00114), depression ((P+T) method: R2(max) ~ .178%, P = .00389; LDpred method: R2(max) ~ .093%, P = .03675), general risk tolerance ((P+T) method: R2(max) ~ .177%, P = .00399; LDpred method: R2(max) ~ .305%, P = .00016), and risky behaviors ((P+T) method: R2(max) ~ .187%, P = .00307; LDpred method: R2(max) ~ .155%, P = .00715). Our results suggest that human creativity is probably a polygenic trait affected by numerous variations with tiny effects. Genetic variations that predispose to psychiatric disorders and risky behaviors may underlie part of the genetic basis of creativity, confirming the epidemiological associations between creativity and these traits.


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