skip to main content


Dr. Samaan is a Professor, Department of Psychiatry and Behavioural Neurosciences, Associate Member, Department of Clinical Epidemiology and Biostatistics and core faculty at the Population Genomics Program and Peter Boris Centre for Addiction Research, McMaster University. Dr. Samaan completed psychiatry and research training in Ireland and UK. In addition to her medical degree, she holds a Masters in Science from Trinity College Dublin, Ireland and a PhD in psychiatric genetics from the Institute of Psychiatry and Kings College London, UK.

Featured Publications

Sex differences in substance use, health, and social functioning among opioid users receiving methadone treatment: a multicenter cohort study.

Bawor M, Dennis BB, Varenbut M, Daiter J, Marsh DC, Plater C, Worster A, Steiner M, Anglin R, Pare G, Desai D, Thabane L, Samaan Z. Biol Sex Differ. 2015 Nov 10;6:21. doi: 10.1186/s13293-015-0038-6. eCollection 2015. PMID: 26557977

Re-Examination of Classic Risk Factors for Suicidal Behavior in the Psychiatric Population.

Dennis BB, Roshanov PS, Bawor M, ElSheikh W, Garton S, DeJesus J, Rangarajan S, Vair J, Sholer H, Hutchinson N, Lordan E, Thabane L, Samaan Z. Crisis. 2015 Jul;36(4):231-40. doi: 10.1027/0227-5910/a000342. PMID: 26440619

Contribution of BDNF and DRD2 genetic polymorphisms to continued opioid use in patients receiving methadone treatment for opioid use disorder: an observational study.

Bawor M, Dennis BB, Tan C, Pare G, Varenbut M, Daiter J, Plater C, Worster A, Marsh DC, Steiner M, Anglin R, Desai D, Thabane L, Samaan Z. Addict Sci Clin Pract. 2015 Oct 6;10(1):19. doi: 10.1186/s13722-015-0040-7. PMID:26437921

Lack of association between type 2 diabetes and major depression: epidemiologic and genetic evidence in a multiethnic population.

Samaan Z, Garasia S, Gerstein HC, Engert JC, Mohan V, Diaz R, Anand SS, Meyre D. Transl Psychiatry. 2015 Aug 11;5:e618. doi: 10.1038/tp.2015.113. PMID:26261886

The protective effect of the obesity-associated rs9939609 A variant in fat mass- and obesity-associated gene on depression.

Samaan Z, Anand SS, Zhang X, Desai D, Rivera M, Pare G, Thabane L, Xie C, Gerstein H, Engert JC, Craig I, Cohen-Woods S, Mohan V, Diaz R, Wang X, Liu L, Corre T, Preisig M, Kutalik Z, Bergmann S, Vollenweider P, Waeber G, Yusuf S, Meyre D. Mol Psychiatry. 2013 Dec;18(12):1281-6. doi: 10.1038/mp.2012.160. Epub 2012 Nov 20. PMID: 23164817

Research Areas

Dr. Samaan is a psychiatrist specialized in mood disorders and the comorbidity of depression with medical disorders and addiction.

Her clinical and research interests are focused on complex depression, predictors of suicidal behaviour and substance use disorders with emphasis on biological markers including genetic variants.

More Info

© 2018 McMaster University | 1280 Main Street West | Hamilton, Ontario L8S4L8 | 905-525-9140 | Contact Us | Terms of Use & Privacy Policy