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Race NS, Andrews KD, Lungwitz EA, Vega Alvarez SM, Warner TR, Acosta G, Cao J, Lu KH, Liu Z, Dietrich AD, Majumdar S, Shekhar A, Truitt WA, Shi R. Psychosocial impairment following mild blast-induced traumatic brain injury in rats. Behav Brain Res 2021; 412:113405. [PMID: 34097900 DOI: 10.1016/j.bbr.2021.113405] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 06/02/2021] [Accepted: 06/02/2021] [Indexed: 01/30/2023]
Abstract
Traumatic brain injury (TBI) is associated with increased risk for mental health disorders, impacting post-injury quality of life and societal reintegration. TBI is also associated with deficits in psychosocial processing, defined as the cognitive integration of social and emotional behaviors, however little is known about how these deficits manifest and their contributions to post-TBI mental health. In this pre-clinical investigation using rats, a single mild blast TBI (mbTBI) induced impairment of psychosocial processing in the absence of confounding physical polytrauma, post-injury motor deficits, affective abnormalities, or deficits in non-social behavior. Impairment severity correlated with acute upregulations of a known oxidative stress metabolite, 3-hydroxypropylmercapturic acid (3-HPMA), in urine. Resting state fMRI alterations in the acute post-injury period implicated key brain regions known to regulate psychosocial behavior, including orbitofrontal cortex (OFC), which is congruent with our previous report of elevated acrolein, a marker of neurotrauma and 3-HPMA precursor, in this region following mbTBI. OFC of mbTBI-exposed rats demonstrated elevated mRNA expression of metabotropic glutamate receptors 1 and 5 (mGluR1/5) and injection of mGluR1/5-selective agonist in OFC of uninjured rats approximated mbTBI-induced psychosocial processing impairment, demonstrating a novel role for OFC in this psychosocial behavior. Furthermore, OFC may serve as a hotspot for TBI-induced disruption of psychosocial processing and subsequent mental health disorders.
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Affiliation(s)
- Nicholas S Race
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN, USA; Medical Scientist Training Program, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Katharine D Andrews
- Medical Scientist Training Program, Indiana University School of Medicine, Indianapolis, IN, USA; Paul and Carole Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, IN, USA; Program in Medical Neuroscience, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Elizabeth A Lungwitz
- Paul and Carole Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, IN, USA; Program in Medical Neuroscience, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Sasha M Vega Alvarez
- PULSe Interdisciplinary Life Science Program, Purdue University, West Lafayette, IN, USA
| | - Timothy R Warner
- Paul and Carole Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, IN, USA; Department of Anatomy, Cellular Biology & Physiology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Glen Acosta
- Department of Basic Medical Sciences, College of Veterinary Medicine, Purdue University, West Lafayette, IN, USA
| | - Jiayue Cao
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN, USA; Purdue Institute for Integrative Neuroscience, Purdue University, West Lafayette, IN, USA
| | - Kun-Han Lu
- Purdue Institute for Integrative Neuroscience, Purdue University, West Lafayette, IN, USA; School of Electrical and Computer Engineering, Purdue University, West Lafayette, IN, USA
| | - Zhongming Liu
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN, USA; Purdue Institute for Integrative Neuroscience, Purdue University, West Lafayette, IN, USA; School of Electrical and Computer Engineering, Purdue University, West Lafayette, IN, USA
| | - Amy D Dietrich
- Paul and Carole Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, IN, USA; Department of Anatomy, Cellular Biology & Physiology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Sreeparna Majumdar
- Paul and Carole Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, IN, USA; Program in Medical Neuroscience, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Anantha Shekhar
- Paul and Carole Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, IN, USA; Department of Psychiatry, Indiana University School of Medicine, Indianapolis, IN, USA; Indiana Clinical and Translational Sciences Institute, Indiana University School of Medicine, Indianapolis, IN, USA
| | - William A Truitt
- Paul and Carole Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, IN, USA; Department of Anatomy, Cellular Biology & Physiology, Indiana University School of Medicine, Indianapolis, IN, USA.
| | - Riyi Shi
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN, USA; PULSe Interdisciplinary Life Science Program, Purdue University, West Lafayette, IN, USA; Department of Basic Medical Sciences, College of Veterinary Medicine, Purdue University, West Lafayette, IN, USA; Purdue Institute for Integrative Neuroscience, Purdue University, West Lafayette, IN, USA; Center for Paralysis Research, West Lafayette, IN, USA.
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