title: Review of biological mechanisms and pharmacological treatments of comorbid PTSD and substance use disorder.
abstract: Posttraumatic stress disorder (PTSD) and alcohol/substance use disorder (A/SUD) are frequently comorbid. Comorbidity is associated with poorer psychological, functional, and treatment outcomes than either disorder alone. This review outlines biological mechanisms that are potentially involved in the development and maintenance of comorbid PTSD and A/SUD including neurotransmitter and hypothalamic-pituitary-adrenal dysregulation, structural differences in the brain, and shared genetic risk factors. The literature regarding pharmacological treatments that have been investigated for comorbid PTSD and A/SUD is also reviewed. Empirical data for each proposed mechanism and pharmacological approach is reviewed with the goal of making recommendations for future research. This article is part of a Special Issue entitled 'Post-Traumatic Stress Disorder'.
authors: University of California San Diego School of Medicine, San Diego, CA 92161, USA. snorman@ucsd.edu
authors: Sonya B
authors: SB
authors: Norman
authors: Ursula S
authors: US
authors: Myers
authors: Kendall C
authors: KC
authors: Wilkins
authors: Abigail A
authors: AA
authors: Goldsmith
authors: Veselina
authors: V
authors: Hristova
authors: Zian
authors: Z
authors: Huang
authors: Kelly C
authors: KC
authors: McCullough
authors: Shannon K
authors: SK
authors: Robinson
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