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Domin H, Śmiałowska M. The diverse role of corticotropin-releasing factor (CRF) and its CRF1 and CRF2 receptors under pathophysiological conditions: Insights into stress/anxiety, depression, and brain injury processes. Neurosci Biobehav Rev 2024; 163:105748. [PMID: 38857667 DOI: 10.1016/j.neubiorev.2024.105748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 05/28/2024] [Accepted: 06/01/2024] [Indexed: 06/12/2024]
Abstract
Corticotropin-releasing factor (CRF, corticoliberin) is a neuromodulatory peptide activating the hypothalamic-pituitary-adrenal (HPA) axis, widely distributed in the central nervous system (CNS) in mammals. In addition to its neuroendocrine effects, CRF is essential in regulating many functions under physiological and pathophysiological conditions through CRF1 and CRF2 receptors (CRF1R, CRF2R). This review aims to present selected examples of the diverse and sometimes opposite effects of CRF and its receptor ligands in various pathophysiological states, including stress/anxiety, depression, and processes associated with brain injury. It seems interesting to draw particular attention to the fact that CRF and its receptor ligands exert different effects depending on the brain structures or subregions, likely stemming from the varied distribution of CRFRs in these regions and interactions with other neurotransmitters. CRFR-mediated region-specific effects might also be related to brain site-specific ligand binding and the associated activated signaling pathways. Intriguingly, different types of CRF molecules can also influence the diverse actions of CRF in the CNS.
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Affiliation(s)
- Helena Domin
- Maj Institute of Pharmacology, Polish Academy of Sciences, Department of Neurobiology, 12 Smętna Street, Kraków 31-343, Poland.
| | - Maria Śmiałowska
- Maj Institute of Pharmacology, Polish Academy of Sciences, Department of Neurobiology, 12 Smętna Street, Kraków 31-343, Poland
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2
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Ritter K, Baalmann M, Dolderer C, Ritz U, Schäfer MKE. Brain-Bone Crosstalk in a Murine Polytrauma Model Promotes Bone Remodeling but Impairs Neuromotor Recovery and Anxiety-Related Behavior. Biomedicines 2024; 12:1399. [PMID: 39061973 PMCID: PMC11274630 DOI: 10.3390/biomedicines12071399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2024] [Revised: 06/19/2024] [Accepted: 06/21/2024] [Indexed: 07/28/2024] Open
Abstract
Traumatic brain injury (TBI) and long bone fractures are a common injury pattern in polytrauma patients and modulate each other's healing process. As only a limited number of studies have investigated both traumatic sites, we tested the hypothesis that brain-bone polytrauma mutually impacts neuro- and osteopathological outcomes. Adult female C57BL/6N mice were subjected to controlled cortical impact (CCI), and/or osteosynthetic stabilized femoral fracture (FF), or sham surgery. Neuromotor and behavioral impairments were assessed by neurological severity score, open field test, rotarod test, and elevated plus maze test. Brain and bone tissues were processed 42 days after trauma. CCI+FF polytrauma mice had increased bone formation as compared to FF mice and increased mRNA expression of bone sialoprotein (BSP). Bone fractures did not aggravate neuropathology or neuroinflammation assessed by cerebral lesion size, hippocampal integrity, astrocyte and microglia activation, and gene expression. Behavioral assessments demonstrated an overall impaired recovery of neuromotor function and persistent abnormalities in anxiety-related behavior in polytrauma mice. This study shows enhanced bone healing, impaired neuromotor recovery and anxiety-like behavior in a brain-bone polytrauma model. However, bone fractures did not aggravate TBI-evoked neuropathology, suggesting the existence of outcome-relevant mechanisms independent of the extent of brain structural damage and neuroinflammation.
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Affiliation(s)
- Katharina Ritter
- Department of Anesthesiology, University Medical Center of the Johannes Gutenberg-University Mainz, Langenbeckstrasse 1, 55131 Mainz, Germany; (K.R.); (M.B.)
| | - Markus Baalmann
- Department of Anesthesiology, University Medical Center of the Johannes Gutenberg-University Mainz, Langenbeckstrasse 1, 55131 Mainz, Germany; (K.R.); (M.B.)
| | - Christopher Dolderer
- Department of Orthopedics and Traumatology, University Medical Centre of the Johannes Gutenberg-University Mainz, Langenbeckstrasse 1, 55131 Mainz, Germany; (C.D.); (U.R.)
| | - Ulrike Ritz
- Department of Orthopedics and Traumatology, University Medical Centre of the Johannes Gutenberg-University Mainz, Langenbeckstrasse 1, 55131 Mainz, Germany; (C.D.); (U.R.)
| | - Michael K. E. Schäfer
- Department of Anesthesiology, University Medical Center of the Johannes Gutenberg-University Mainz, Langenbeckstrasse 1, 55131 Mainz, Germany; (K.R.); (M.B.)
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3
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Rojczyk P, Heller C, Seitz-Holland J, Kaufmann E, Sydnor VJ, Berger L, Pankatz L, Rathi Y, Bouix S, Pasternak O, Salat D, Hinds SR, Esopenko C, Fortier CB, Milberg WP, Shenton ME, Koerte IK. Intimate partner violence perpetration among veterans: associations with neuropsychiatric symptoms and limbic microstructure. Front Neurol 2024; 15:1360424. [PMID: 38882690 PMCID: PMC11178105 DOI: 10.3389/fneur.2024.1360424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Accepted: 05/03/2024] [Indexed: 06/18/2024] Open
Abstract
Background Intimate partner violence (IPV) perpetration is highly prevalent among veterans. Suggested risk factors of IPV perpetration include combat exposure, post-traumatic stress disorder (PTSD), depression, alcohol use, and mild traumatic brain injury (mTBI). While the underlying brain pathophysiological characteristics associated with IPV perpetration remain largely unknown, previous studies have linked aggression and violence to alterations of the limbic system. Here, we investigate whether IPV perpetration is associated with limbic microstructural abnormalities in military veterans. Further, we test the effect of potential risk factors (i.e., PTSD, depression, substance use disorder, mTBI, and war zone-related stress) on the prevalence of IPV perpetration. Methods Structural and diffusion-weighted magnetic resonance imaging (dMRI) data were acquired from 49 male veterans of the Iraq and Afghanistan wars (Operation Enduring Freedom/Operation Iraqi Freedom; OEF/OIF) of the Translational Research Center for TBI and Stress Disorders (TRACTS) study. IPV perpetration was assessed using the psychological aggression and physical assault sub-scales of the Revised Conflict Tactics Scales (CTS2). Odds ratios were calculated to assess the likelihood of IPV perpetration in veterans with either of the following diagnoses: PTSD, depression, substance use disorder, or mTBI. Fractional anisotropy tissue (FA) measures were calculated for limbic gray matter structures (amygdala-hippocampus complex, cingulate, parahippocampal gyrus, entorhinal cortex). Partial correlations were calculated between IPV perpetration, neuropsychiatric symptoms, and FA. Results Veterans with a diagnosis of PTSD, depression, substance use disorder, or mTBI had higher odds of perpetrating IPV. Greater war zone-related stress, and symptom severity of PTSD, depression, and mTBI were significantly associated with IPV perpetration. CTS2 (psychological aggression), a measure of IPV perpetration, was associated with higher FA in the right amygdala-hippocampus complex (r = 0.400, p = 0.005). Conclusion Veterans with psychiatric disorders and/or mTBI exhibit higher odds of engaging in IPV perpetration. Further, the more severe the symptoms of PTSD, depression, or TBI, and the greater the war zone-related stress, the greater the frequency of IPV perpetration. Moreover, we report a significant association between psychological aggression against an intimate partner and microstructural alterations in the right amygdala-hippocampus complex. These findings suggest the possibility of a structural brain correlate underlying IPV perpetration that requires further research.
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Affiliation(s)
- Philine Rojczyk
- Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women's Hospital, Harvard Medical School, Somerville, MA, United States
- cBRAIN, Department of Child and Adolescent Psychiatry, Psychosomatics, and Psychotherapy, Ludwig-Maximilians-University, Munich, Germany
| | - Carina Heller
- Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women's Hospital, Harvard Medical School, Somerville, MA, United States
- Department of Psychiatry and Psychotherapy, Jena University Hospital, Jena, Germany
- Department of Clinical Psychology, Friedrich Schiller University Jena, Jena, Germany
- German Center for Mental Health (DZPG), Halle-Jena-Magdeburg, Germany
- Center for Intervention and Research on Adaptive and Maladaptive Brain Circuits underlying Mental Health (C-I-R-C), Halle-Jena-Magdeburg, Germany
| | - Johanna Seitz-Holland
- Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women's Hospital, Harvard Medical School, Somerville, MA, United States
- Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States
| | - Elisabeth Kaufmann
- Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women's Hospital, Harvard Medical School, Somerville, MA, United States
- cBRAIN, Department of Child and Adolescent Psychiatry, Psychosomatics, and Psychotherapy, Ludwig-Maximilians-University, Munich, Germany
- Department of Neurology, Ludwig-Maximilians-University, Munich, Germany
| | - Valerie J Sydnor
- Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women's Hospital, Harvard Medical School, Somerville, MA, United States
| | - Luisa Berger
- Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women's Hospital, Harvard Medical School, Somerville, MA, United States
- cBRAIN, Department of Child and Adolescent Psychiatry, Psychosomatics, and Psychotherapy, Ludwig-Maximilians-University, Munich, Germany
| | - Lara Pankatz
- Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women's Hospital, Harvard Medical School, Somerville, MA, United States
- cBRAIN, Department of Child and Adolescent Psychiatry, Psychosomatics, and Psychotherapy, Ludwig-Maximilians-University, Munich, Germany
| | - Yogesh Rathi
- Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women's Hospital, Harvard Medical School, Somerville, MA, United States
- Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States
| | - Sylvain Bouix
- Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women's Hospital, Harvard Medical School, Somerville, MA, United States
- Department of Software Engineering and IT, École de technologie supérieure, Montreal, QC, Canada
| | - Ofer Pasternak
- Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women's Hospital, Harvard Medical School, Somerville, MA, United States
- Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States
| | - David Salat
- Translational Research Center for TBI and Stress Disorders (TRACTS) and Geriatric Research, Education and Clinical Center (GRECC), VA Boston Healthcare System, Boston, MA, United States
- Neuroimaging Research for Veterans (NeRVe) Center, VA Boston Healthcare System, Boston, MA, United States
- Massachusetts General Hospital Department of Radiology, Athinoula A. Martinos Center for Biomedical Imaging, Boston, MA, United States
| | - Sidney R Hinds
- Department of Radiology and Neurology, Uniformed Services University, Bethesda, MD, United States
| | - Carrie Esopenko
- Department of Rehabilitation and Human Performance, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Catherine B Fortier
- Translational Research Center for TBI and Stress Disorders (TRACTS) and Geriatric Research, Education and Clinical Center (GRECC), VA Boston Healthcare System, Boston, MA, United States
- Department of Psychiatry, Harvard Medical School, Boston, MA, United States
| | - William P Milberg
- Translational Research Center for TBI and Stress Disorders (TRACTS) and Geriatric Research, Education and Clinical Center (GRECC), VA Boston Healthcare System, Boston, MA, United States
- Neuroimaging Research for Veterans (NeRVe) Center, VA Boston Healthcare System, Boston, MA, United States
- Department of Psychiatry, Harvard Medical School, Boston, MA, United States
| | - Martha E Shenton
- Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women's Hospital, Harvard Medical School, Somerville, MA, United States
- Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States
- Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States
| | - Inga K Koerte
- Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Brigham and Women's Hospital, Harvard Medical School, Somerville, MA, United States
- cBRAIN, Department of Child and Adolescent Psychiatry, Psychosomatics, and Psychotherapy, Ludwig-Maximilians-University, Munich, Germany
- Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States
- Graduate School of Systemic Neuroscience, Ludwig-Maximilians-University, Munich, Germany
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Flerlage WJ, Simmons SC, Thomas EH, Gouty S, Tsuda MC, Wu TJ, Armstrong RC, Cox BM, Nugent FS. Effects of Repetitive Mild Traumatic Brain Injury on Corticotropin-Releasing Factor Modulation of Lateral Habenula Excitability and Motivated Behavior. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.04.16.589760. [PMID: 38798343 PMCID: PMC11118357 DOI: 10.1101/2024.04.16.589760] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
Mild traumatic brain injury (mTBI) is a significant health burden due to mTBI-related chronic debilitating cognitive and psychiatric morbidities. Recent evidence from our laboratory suggests a possible dysregulation within reward/motivational circuit function at the level of a subcortical structure, the lateral habenula (LHb), where we demonstrated a causal role for hyperactive LHb in mTBI-induced motivational deficits in self-care grooming behavior in young adult male mice when exposed to mTBI injury during late adolescence (at ~8 weeks old). Here we extended this observation by further characterizing neurobehavioral effects of this repetitive closed head injury model of mTBI in both young adult male and female mice on LHb excitability, corticotropin releasing factor (CRF) modulation of LHb activity, and behavioral responses of motivation to self-care behavior, and approach versus avoidance behavior in the presence of a social- or threat-related stimulus. We show that mTBI increases LHb spontaneous tonic activity in female mice similar to what we previously observed in male mice as well as promoting LHb neuronal hyperexcitability and hyperpolarization-induced LHb bursting in both male and female mice. Interestingly, mTBI only increases LHb intrinsic excitability in male mice coincident with higher levels of the hyperpolarization-activated cation currents (HCN/Ih) and reduces levels of the M-type potassium currents while potentiating M-currents without altering intrinsic excitability in LHb neurons of female mice. Since persistent dysregulation of brain CRF systems is suggested to contribute to chronic psychiatric morbidities and that LHb neurons are highly responsive to CRF, we then tested whether LHb CRF subsystem becomes engaged following mTBI. We found that in vitro inhibition of CRF receptor type 1 (CRFR1) within the LHb normalizes mTBI-induced enhancement of LHb tonic activity and hyperexcitability in both sexes, suggesting that an augmented intra-LHb CRF-CRFR1-mediated signaling contributes to the overall LHb hyperactivity following mTBI. Behaviorally, mTBI diminishes motivation for self-care grooming in female mice as in male mice. mTBI also alters defensive behaviors in the looming shadow task by shifting the innate defensive behaviors towards more passive action-locking rather than escape behaviors in response to an aerial threat in both male and female mice as well as prolonging the latency to escape responses in female mice. While, this model of mTBI reduces social preference in male mice, it induces higher social novelty seeking during the novel social encounters in both male and female mice. Overall, our study provides further translational validity for the use of this preclinical model of mTBI for investigation of mTBI-related reward circuit dysfunction and mood/motivation-related behavioral deficits in both sexes while uncovering a few sexually dimorphic neurobehavioral effects of this model that may differentially affect young males and females when exposed to this type of mTBI injury during late adolescence.
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Affiliation(s)
- William J. Flerlage
- Uniformed Services University of the Health Sciences, Department of Pharmacology and Molecular Therapeutics, Bethesda, Maryland 20814, USA
| | - Sarah C. Simmons
- Uniformed Services University of the Health Sciences, Department of Pharmacology and Molecular Therapeutics, Bethesda, Maryland 20814, USA
| | - Emily H. Thomas
- Uniformed Services University of the Health Sciences, Department of Pharmacology and Molecular Therapeutics, Bethesda, Maryland 20814, USA
| | - Shawn Gouty
- Uniformed Services University of the Health Sciences, Department of Pharmacology and Molecular Therapeutics, Bethesda, Maryland 20814, USA
| | - Mumeko C. Tsuda
- Preclinical Behavior and Modeling Core, Uniformed Services University of the Health Sciences, Bethesda, MD
| | - T. John Wu
- Uniformed Services University of the Health Sciences, Department of Gynecologic Surgery and Obstetrics, Bethesda, MD 20814
| | - Regina C. Armstrong
- Uniformed Services University of the Health Sciences, Department of Anatomy, Physiology and Genetics, Bethesda, Maryland 20814, USA
| | - Brian M. Cox
- Uniformed Services University of the Health Sciences, Department of Pharmacology and Molecular Therapeutics, Bethesda, Maryland 20814, USA
| | - Fereshteh S. Nugent
- Uniformed Services University of the Health Sciences, Department of Pharmacology and Molecular Therapeutics, Bethesda, Maryland 20814, USA
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5
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Esopenko C, Jain D, Adhikari SP, Dams-O'Connor K, Ellis M, Haag HL, Hovenden ES, Keleher F, Koerte IK, Lindsey HM, Marshall AD, Mason K, McNally JS, Menefee DS, Merkley TL, Read EN, Rojcyk P, Shultz SR, Sun M, Toccalino D, Valera EM, van Donkelaar P, Wellington C, Wilde EA. Intimate Partner Violence-Related Brain Injury: Unmasking and Addressing the Gaps. J Neurotrauma 2024. [PMID: 38323539 DOI: 10.1089/neu.2023.0543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2024] Open
Abstract
Intimate partner violence (IPV) is a significant, global public health concern. Women, individuals with historically underrepresented identities, and disabilities are at high risk for IPV and tend to experience severe injuries. There has been growing concern about the risk of exposure to IPV-related head trauma, resulting in IPV-related brain injury (IPV-BI), and its health consequences. Past work suggests that a significant proportion of women exposed to IPV experience IPV-BI, likely representing a distinct phenotype compared with BI of other etiologies. An IPV-BI often co-occurs with psychological trauma and mental health complaints, leading to unique issues related to identifying, prognosticating, and managing IPV-BI outcomes. The goal of this review is to identify important gaps in research and clinical practice in IPV-BI and suggest potential solutions to address them. We summarize IPV research in five key priority areas: (1) unique considerations for IPV-BI study design; (2) understanding non-fatal strangulation as a form of BI; (3) identifying objective biomarkers of IPV-BI; (4) consideration of the chronicity, cumulative and late effects of IPV-BI; and (5) BI as a risk factor for IPV engagement. Our review concludes with a call to action to help investigators develop ecologically valid research studies addressing the identified clinical-research knowledge gaps and strategies to improve care in individuals exposed to IPV-BI. By reducing the current gaps and answering these calls to action, we will approach IPV-BI in a trauma-informed manner, ultimately improving outcomes and quality of life for those impacted by IPV-BI.
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Affiliation(s)
- Carrie Esopenko
- Department of Rehabilitation and Human Performance, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Divya Jain
- Department of Rehabilitation and Human Performance, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Shambhu Prasad Adhikari
- School of Health and Exercise Sciences, University of British Columbia, Kelowna, British Columbia, Canada
| | - Kristen Dams-O'Connor
- Department of Rehabilitation and Human Performance, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Michael Ellis
- Department of Surgery, Section of Neurosurgery, University of Manitoba, Pan Am Clinic, Winnipeg, Manitoba, Canada
| | - Halina Lin Haag
- Faculty of Social Work, Wilfrid Laurier University, Ontario, Canada
- Acquired Brain Injury Research Lab, University of Toronto, Toronto, Canada
| | - Elizabeth S Hovenden
- Traumatic Brain Injury and Concussion Center, Department of Neurology, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Finian Keleher
- Traumatic Brain Injury and Concussion Center, Department of Neurology, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Inga K Koerte
- cBRAIN, Department of Child and Adolescent Psychiatry, Psychosomatics, and Psychotherapy, University Hospital, Ludwig-Maximilians-Universität, Munich, Germany
- Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Mass General Brigham, Harvard Medical School, Somerville, Massachusetts, USA
| | - Hannah M Lindsey
- Traumatic Brain Injury and Concussion Center, Department of Neurology, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Amy D Marshall
- Department of Psychology, The Pennsylvania State University, University Park, Pennsylvania, USA
| | - Karen Mason
- Supporting Survivors of Abuse and Brain Injury through Research (SOAR), Kelowna, British Columbia, Canada
| | - J Scott McNally
- Department of Radiology and Imaging Sciences, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Deleene S Menefee
- Michael E. DeBakey VA Medical Center, The Menninger Department of Psychiatry and Behavioral Sciences, Baylor College of Medicine, Houston, Texas, USA
| | - Tricia L Merkley
- Traumatic Brain Injury and Concussion Center, Department of Neurology, University of Utah School of Medicine, Salt Lake City, Utah, USA
- Department of Psychology and Neuroscience Center, Brigham Young University, Provo, Utah, USA
| | - Emma N Read
- Traumatic Brain Injury and Concussion Center, Department of Neurology, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Philine Rojcyk
- cBRAIN, Department of Child and Adolescent Psychiatry, Psychosomatics, and Psychotherapy, University Hospital, Ludwig-Maximilians-Universität, Munich, Germany
- Psychiatry Neuroimaging Laboratory, Department of Psychiatry, Mass General Brigham, Harvard Medical School, Somerville, Massachusetts, USA
| | - Sandy R Shultz
- Health Sciences, Vancouver Island University, Nanaimo, Canada
- Department of Neuroscience, Monash University, Alfred Centre, Melbourne, Australia
| | - Mujun Sun
- Department of Neuroscience, Monash University, Alfred Centre, Melbourne, Australia
| | - Danielle Toccalino
- Institute of Health Policy, Management and Evaluation, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
| | - Eve M Valera
- Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Paul van Donkelaar
- School of Health and Exercise Sciences, University of British Columbia, Kelowna, British Columbia, Canada
| | - Cheryl Wellington
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, Canada
- Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, Canada
- International Collaboration on Repair Discoveries, University of British Columbia, Vancouver, Canada
- School of Biomedical Engineering, University of British Columbia, Vancouver, Canada
| | - Elisabeth A Wilde
- Traumatic Brain Injury and Concussion Center, Department of Neurology, University of Utah School of Medicine, Salt Lake City, Utah, USA
- Department of Radiology and Imaging Sciences, University of Utah School of Medicine, Salt Lake City, Utah, USA
- George E. Wahlen ,VA Salt Lake City Heathcare System, Salt Lake City, Utah, USA
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6
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Everson CA, Szabo A, Plyer C, Hammeke TA, Stemper BD, Budde MD. Sleep loss, caffeine, sleep aids and sedation modify brain abnormalities of mild traumatic brain injury. Exp Neurol 2024; 372:114620. [PMID: 38029810 DOI: 10.1016/j.expneurol.2023.114620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 11/06/2023] [Accepted: 11/21/2023] [Indexed: 12/01/2023]
Abstract
Little evidence exists about how mild traumatic brain injury (mTBI) is affected by commonly encountered exposures of sleep loss, sleep aids, and caffeine that might be potential therapeutic opportunities. In addition, while propofol sedation is administered in severe TBI, its potential utility in mild TBI is unclear. Each of these exposures is known to have pronounced effects on cerebral metabolism and blood flow and neurochemistry. We hypothesized that they each interact with cerebral metabolic dynamics post-injury and change the subclinical characteristics of mTBI. MTBI in rats was produced by head rotational acceleration injury that mimics the biomechanics of human mTBI. Three mTBIs spaced 48 h apart were used to increase the likelihood that vulnerabilities induced by repeated mTBI would be manifested without clinically relevant structural damage. After the third mTBI, rats were immediately sleep deprived or administered caffeine or suvorexant (an orexin antagonist and sleep aid) for the next 24 h or administered propofol for 5 h. Resting state functional magnetic resonance imaging (rs-fMRI) and diffusion tensor imaging (DTI) were performed 24 h after the third mTBI and again after 30 days to determine changes to the brain mTBI phenotype. Multi-modal analyses on brain regions of interest included measures of functional connectivity and regional homogeneity from rs-fMRI, and mean diffusivity (MD) and fractional anisotropy (FA) from DTI. Each intervention changed the mTBI profile of subclinical effects that presumably underlie healing, compensation, damage, and plasticity. Sleep loss during the acute post-injury period resulted in dramatic changes to functional connectivity. Caffeine, propofol sedation and suvorexant were especially noteworthy for differential effects on microstructure in gray and white matter regions after mTBI. The present results indicate that commonplace exposures and short-term sedation alter the subclinical manifestations of repeated mTBI and therefore likely play roles in symptomatology and vulnerability to damage by repeated mTBI.
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Affiliation(s)
- Carol A Everson
- Department of Medicine (Endocrinology and Molecular Medicine) and Cell Biology, Neurobiology & Anatomy, Medical College of Wisconsin, Milwaukee, WI, USA.
| | - Aniko Szabo
- Division of Biostatistics, Institute for Health & Equity, Medical College of Wisconsin, Milwaukee, WI, USA.
| | - Cade Plyer
- Neurology Residency Program, Department of Neurology, University of Iowa Hospitals and Clinics, Iowa City, IA, USA.
| | - Thomas A Hammeke
- Department of Psychiatry and Behavioral Medicine, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Brian D Stemper
- Department of Neurosurgery, Medical College of Wisconsin, Milwaukee, WI, USA; Department of Biomedical Engineering, Medical College of Wisconsin, Milwaukee, WI, USA; Neuroscience Research, Zablocki Veterans Affairs Medical Center, Milwaukee, WI, USA.
| | - Mathew D Budde
- Department of Neurosurgery, Medical College of Wisconsin, Milwaukee, WI, USA.
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7
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McGowan JC, Ladner LR, Shubeck CX, Tapia J, LaGamma CT, Anqueira-González A, DeFrancesco A, Chen BK, Hunsberger HC, Sydnor EJ, Logan RW, Yu TS, Kernie SG, Denny CA. Traumatic Brain Injury-Induced Fear Generalization in Mice Involves Hippocampal Memory Trace Dysfunction and Is Alleviated by (R,S)-Ketamine. Biol Psychiatry 2024; 95:15-26. [PMID: 37423591 PMCID: PMC10772211 DOI: 10.1016/j.biopsych.2023.06.030] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 06/12/2023] [Accepted: 06/29/2023] [Indexed: 07/11/2023]
Abstract
BACKGROUND Traumatic brain injury (TBI) is a debilitating neurological disorder caused by an impact to the head by an outside force. TBI results in persistent cognitive impairments, including fear generalization and the inability to distinguish between aversive and neutral stimuli. The mechanisms underlying fear generalization have not been fully elucidated, and there are no targeted therapeutics to alleviate this symptom of TBI. METHODS To identify the neural ensembles mediating fear generalization, we utilized ArcCreERT2 × enhanced yellow fluorescent protein (EYFP) mice, which allow for activity-dependent labeling and quantification of memory traces. Mice were administered a sham surgery or the controlled cortical impact model of TBI. Mice were then administered a contextual fear discrimination paradigm and memory traces were quantified in numerous brain regions. In a separate group of mice, we tested if (R,S)-ketamine could decrease fear generalization and alter the corresponding memory traces in TBI mice. RESULTS TBI mice exhibited increased fear generalization when compared with sham mice. This behavioral phenotype was paralleled by altered memory traces in the dentate gyrus, CA3, and amygdala, but not by alterations in inflammation or sleep. In TBI mice, (R,S)-ketamine facilitated fear discrimination, and this behavioral improvement was reflected in dentate gyrus memory trace activity. CONCLUSIONS These data show that TBI induces fear generalization by altering fear memory traces and that this deficit can be improved with a single injection of (R,S)-ketamine. This work enhances our understanding of the neural basis of TBI-induced fear generalization and reveals potential therapeutic avenues for alleviating this symptom.
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Affiliation(s)
- Josephine C McGowan
- Doctoral Program in Neurobiology and Behavior, Columbia University, New York, New York.
| | | | | | | | - Christina T LaGamma
- Division of Systems Neuroscience, Research Foundation for Mental Hygiene, Inc./New York State Psychiatric Institute, New York, New York; Department of Psychiatry, Columbia University Irving Medical Center, New York, New York
| | | | - Ariana DeFrancesco
- Department of Behavioral Neuroscience, Queens College, New York, New York
| | - Briana K Chen
- Division of Systems Neuroscience, Research Foundation for Mental Hygiene, Inc./New York State Psychiatric Institute, New York, New York; Department of Psychiatry, Columbia University Irving Medical Center, New York, New York
| | - Holly C Hunsberger
- Center for Neurodegenerative Diseases and Therapeutics, Rosalind Franklin University of Medicine and Science, Chicago Medical School, Chicago, Illinois
| | - Ezra J Sydnor
- Division of Systems Neuroscience, Research Foundation for Mental Hygiene, Inc./New York State Psychiatric Institute, New York, New York
| | - Ryan W Logan
- Department of Pharmacology and Experimental Therapeutics, Boston University School of Medicine, Boston, Massachusetts; Department of Psychiatry, University of Massachusetts Chan Medical School, Worcester, Massachusetts
| | - Tzong-Shiue Yu
- Department of Pediatrics, Columbia University College of Physicians and Surgeons, New York, New York
| | - Steven G Kernie
- Department of Pediatrics, Columbia University College of Physicians and Surgeons, New York, New York; Department of Neurology, Columbia University College of Physicians and Surgeons, New York, New York
| | - Christine A Denny
- Division of Systems Neuroscience, Research Foundation for Mental Hygiene, Inc./New York State Psychiatric Institute, New York, New York; Department of Psychiatry, Columbia University Irving Medical Center, New York, New York.
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8
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Sibilia F, Custer RM, Irimia A, Sepehrband F, Toga AW, Cabeen RP. Life After Mild Traumatic Brain Injury: Widespread Structural Brain Changes Associated With Psychological Distress Revealed With Multimodal Magnetic Resonance Imaging. BIOLOGICAL PSYCHIATRY GLOBAL OPEN SCIENCE 2023; 3:374-385. [PMID: 37519474 PMCID: PMC10382710 DOI: 10.1016/j.bpsgos.2022.03.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 02/28/2022] [Accepted: 03/03/2022] [Indexed: 01/01/2023] Open
Abstract
Background Traumatic brain injury (TBI) can alter brain structure and lead to onset of persistent neuropsychological symptoms. This study investigates the relationship between brain injury and psychological distress after mild TBI using multimodal magnetic resonance imaging. Methods A total of 89 patients with mild TBI from the TRACK-TBI (Transforming Research and Clinical Knowledge in Traumatic Brain Injury) pilot study were included. Subscales of the Brief Symptoms Inventory 18 for depression, anxiety, and somatization were used as outcome measures of psychological distress approximately 6 months after the traumatic event. Glasgow Coma Scale scores were used to evaluate recovery. Magnetic resonance imaging data were acquired within 2 weeks after injury. Perivascular spaces (PVSs) were segmented using an enhanced PVS segmentation method, and the volume fraction was calculated for the whole brain and white matter regions. Cortical thickness and gray matter structures volumes were calculated in FreeSurfer; diffusion imaging indices and multifiber tracts were extracted using the Quantitative Imaging Toolkit. The analysis was performed considering age, sex, intracranial volume, educational attainment, and improvement level upon discharge as covariates. Results PVS fractions in the posterior cingulate, fusiform, and postcentral areas were found to be associated with somatization symptoms. Depression, anxiety, and somatization symptoms were associated with the cortical thickness of the frontal-opercularis and occipital pole, putamen and amygdala volumes, and corticospinal tract and superior thalamic radiation. Analyses were also performed on the two hemispheres separately to explore lateralization. Conclusions This study shows how PVS, cortical, and microstructural changes can predict the onset of depression, anxiety, and somatization symptoms in patients with mild TBI.
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Affiliation(s)
- Francesca Sibilia
- Laboratory of Neuro Imaging, Mark and Mary Stevens Neuroimaging and Informatics Institute, Keck School of Medicine, University of Southern California, Los Angeles, California
| | - Rachel M. Custer
- Laboratory of Neuro Imaging, Mark and Mary Stevens Neuroimaging and Informatics Institute, Keck School of Medicine, University of Southern California, Los Angeles, California
| | - Andrei Irimia
- Ethel Percy Andrus Gerontology Center, Leonard Davis School of Gerontology, University of Southern California, Los Angeles, California
- Department of Biomedical Engineering, Viterbi School of Engineering, University of Southern California, Los Angeles, California
| | - Farshid Sepehrband
- Laboratory of Neuro Imaging, Mark and Mary Stevens Neuroimaging and Informatics Institute, Keck School of Medicine, University of Southern California, Los Angeles, California
| | - Arthur W. Toga
- Laboratory of Neuro Imaging, Mark and Mary Stevens Neuroimaging and Informatics Institute, Keck School of Medicine, University of Southern California, Los Angeles, California
| | - Ryan P. Cabeen
- Laboratory of Neuro Imaging, Mark and Mary Stevens Neuroimaging and Informatics Institute, Keck School of Medicine, University of Southern California, Los Angeles, California
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9
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Gimbel SI, Wang CC, Hungerford L, Twamley EW, Ettenhofer ML. Associations of mTBI and post-traumatic stress to amygdala structure and functional connectivity in military Service Members. FRONTIERS IN NEUROIMAGING 2023; 2:1129446. [PMID: 37554633 PMCID: PMC10406312 DOI: 10.3389/fnimg.2023.1129446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Accepted: 02/07/2023] [Indexed: 08/10/2023]
Abstract
INTRODUCTION Traumatic brain injury (TBI) is one of the highest public health priorities, especially among military personnel where comorbidity with post-traumatic stress symptoms and resulting consequences is high. Brain injury and post-traumatic stress symptoms are both characterized by dysfunctional brain networks, with the amygdala specifically implicated as a region with both structural and functional abnormalities. METHODS This study examined the structural volumetrics and resting state functional connectivity of 68 Active Duty Service Members with or without chronic mild TBI (mTBI) and comorbid symptoms of Post-Traumatic Stress (PTS). RESULTS AND DISCUSSION Structural analysis of the amygdala revealed no significant differences in volume between mTBI and healthy comparison participants with and without post-traumatic stress symptoms. Resting state functional connectivity with bilateral amygdala revealed decreased anterior network connectivity and increased posterior network connectivity in the mTBI group compared to the healthy comparison group. Within the mTBI group, there were significant regions of correlation with amygdala that were modulated by PTS severity, including networks implicated in emotional processing and executive functioning. An examination of a priori regions of amygdala connectivity in the default mode network, task positive network, and subcortical structures showed interacting influences of TBI and PTS, only between right amygdala and right putamen. These results suggest that mTBI and PTS are associated with hypo-frontal and hyper-posterior amygdala connectivity. Additionally, comorbidity of these conditions appears to compound these neural activity patterns. PTS in mTBI may change neural resource recruitment for information processing between the amygdala and other brain regions and networks, not only during emotional processing, but also at rest.
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Affiliation(s)
- Sarah I. Gimbel
- Traumatic Brain Injury Center of Excellence, Silver Spring, MD, United States
- Traumatic Brain Injury Clinic, Naval Medical Center San Diego, San Diego, CA, United States
- General Dynamics Information Technology, Falls Church, VA, United States
| | - Cailynn C. Wang
- Department of Psychology, University of California, San Diego, San Diego, CA, United States
| | - Lars Hungerford
- Traumatic Brain Injury Center of Excellence, Silver Spring, MD, United States
- Traumatic Brain Injury Clinic, Naval Medical Center San Diego, San Diego, CA, United States
- General Dynamics Information Technology, Falls Church, VA, United States
| | - Elizabeth W. Twamley
- Center of Excellence for Stress and Mental Health, VA San Diego Healthcare System, San Diego, CA, United States
- Department of Psychiatry, University of California, San Diego, San Diego, CA, United States
| | - Mark L. Ettenhofer
- Traumatic Brain Injury Center of Excellence, Silver Spring, MD, United States
- Traumatic Brain Injury Clinic, Naval Medical Center San Diego, San Diego, CA, United States
- General Dynamics Information Technology, Falls Church, VA, United States
- Department of Psychiatry, University of California, San Diego, San Diego, CA, United States
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10
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Multiparity Differentially Affects Specific Aspects of the Acute Neuroinflammatory Response to Traumatic Brain Injury in Female Mice. Neuroscience 2023; 511:86-99. [PMID: 36535576 DOI: 10.1016/j.neuroscience.2022.12.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 12/05/2022] [Accepted: 12/11/2022] [Indexed: 12/23/2022]
Abstract
Pregnancy is associated with profound acute and long-term physiological changes, but the effects of such changes on brain injury outcomes are unclear. Here, we examined the effects of previous pregnancy and maternal experience (parity) on acute neuroinflammatory responses to lateral fluid percussion injury (FPI), a well-defined experimental traumatic brain injury (TBI) paradigm. Multiparous (2-3 pregnancies and motherhood experiences) and age-matched nulliparous (no previous pregnancy or motherhood experience) female mice received either FPI or sham injury and were euthanized 3 days post-injury (DPI). Increased cortical Iba1, GFAP, and CD68 immunolabeling was observed following TBI independent of parity and microglia morphology did not differ between TBI groups. However, multiparous females had fewer CD45+ cells near the site of injury compared to nulliparous females, which was associated with preserved aquaporin-4 polarization, suggesting that parity may influence leukocyte recruitment to the site of injury and maintenance of blood brain barrier permeability following TBI. Additionally, relative cortical Il6 gene expression following TBI was dependent on parity such that TBI increased Il6 expression in nulliparous, but not multiparous, mice. Together, this work suggests that reproductive history may influence acute neuroinflammatory outcomes following TBI in females.
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11
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Hoffman AN, Watson S, Chavda N, Lam J, Hovda DA, Giza CC, Fanselow MS. Increased Fear Generalization and Amygdala AMPA Receptor Proteins in Chronic Traumatic Brain Injury. J Neurotrauma 2022; 39:1561-1574. [PMID: 35722903 PMCID: PMC9689770 DOI: 10.1089/neu.2022.0119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Cognitive impairments and emotional lability are common long-term consequences of traumatic brain injury (TBI). How TBI affects interactions between sensory, cognitive, and emotional systems may reveal mechanisms that underlie chronic mental health comorbidities. Previously, we reported changes in auditory-emotional network activity and enhanced fear learning early after TBI. In the current study, we asked whether TBI has long-term effects on fear learning and responses to novel stimuli. Four weeks following lateral fluid percussion injury (FPI) or sham surgery, adult male rats were fear conditioned to either white noise-shock or tone-shock pairing, or shock-only control and subsequently were tested for freezing to context and to the trained or novel auditory cues in a new context. FPI groups showed greater freezing to their trained auditory cue, indicating long-term TBI enhanced fear. Interestingly, FPI-Noise Shock animals displayed robust fear to the novel, untrained tone compared with Sham-Noise Shock across both experiments. Shock Only groups did not differ in freezing to either auditory stimulus. These findings suggest that TBI precipitates maladaptive associative fear generalization rather than non-associative sensitization. Basolateral amygdala (BLA) α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptor (AMPAr) subunits GluA1 and GluA2 levels were analyzed and the FPI-Noise Shock group had increased GluA1 (but not GluA2) levels that correlated with the level of tone fear generalization. This study illustrates a unique chronic TBI phenotype with both a cognitive impairment and increased fear and possibly altered synaptic transmission in the amygdala long after TBI, where stimulus generalization may underlie maladaptive fear and hyperarousal.
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Affiliation(s)
- Ann N. Hoffman
- Department of Neurosurgery, Brain Injury Research Center, University of California, Los Angeles, Los Angeles, California, USA
- Department of Psychology, University of California, Los Angeles, Los Angeles, California, USA
- Steve Tisch BrainSPORT Program, University of California, Los Angeles, Los Angeles, California, USA
- Staglin Center for Brain and Behavioral Health, University of California, Los Angeles, Los Angeles, California, USA
| | - Sonya Watson
- Department of Neurosurgery, Brain Injury Research Center, University of California, Los Angeles, Los Angeles, California, USA
- Department of Psychology, University of California, Los Angeles, Los Angeles, California, USA
| | - Nishtha Chavda
- Department of Psychology, University of California, Los Angeles, Los Angeles, California, USA
| | - Jamie Lam
- Department of Psychology, University of California, Los Angeles, Los Angeles, California, USA
| | - David A. Hovda
- Department of Neurosurgery, Brain Injury Research Center, University of California, Los Angeles, Los Angeles, California, USA
- Steve Tisch BrainSPORT Program, University of California, Los Angeles, Los Angeles, California, USA
- Department of Medical and Molecular Pharmacology, University of California, Los Angeles, Los Angeles, California, USA
| | - Christopher C. Giza
- Department of Neurosurgery, Brain Injury Research Center, University of California, Los Angeles, Los Angeles, California, USA
- Steve Tisch BrainSPORT Program, University of California, Los Angeles, Los Angeles, California, USA
- Mattel Children's Hospital, University of California, Los Angeles, Los Angeles, California, USA
| | - Michael S. Fanselow
- Department of Psychology, University of California, Los Angeles, Los Angeles, California, USA
- Department of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles, Los Angeles, California, USA
- Staglin Center for Brain and Behavioral Health, University of California, Los Angeles, Los Angeles, California, USA
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12
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Braga MFM, Juranek J, Eiden LE, Li Z, Figueiredo TH, de Araujo Furtado M, Marini AM. GABAergic circuits of the basolateral amygdala and generation of anxiety after traumatic brain injury. Amino Acids 2022; 54:1229-1249. [PMID: 35798984 DOI: 10.1007/s00726-022-03184-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Accepted: 06/20/2022] [Indexed: 11/25/2022]
Abstract
Traumatic brain injury (TBI) has reached epidemic proportions around the world and is a major public health concern in the United States. Approximately 2.8 million individuals sustain a traumatic brain injury and are treated in an Emergency Department yearly in the U.S., and about 50,000 of them die. Persistent symptoms develop in 10-15% of the cases including neuropsychiatric disorders. Anxiety is the second most common neuropsychiatric disorder that develops in those with persistent neuropsychiatric symptoms after TBI. Abnormalities or atrophy in the temporal lobe has been shown in the overwhelming number of TBI cases. The basolateral amygdala (BLA), a temporal lobe structure that consolidates, stores and generates fear and anxiety-based behavioral outputs, is a critical brain region in the anxiety circuitry. In this review, we sought to capture studies that characterized the relationship between human post-traumatic anxiety and structural/functional alterations in the amygdala. We compared the human findings with results obtained with a reproducible mild TBI animal model that demonstrated a direct relationship between the alterations in the BLA and an anxiety-like phenotype. From this analysis, both preliminary insights, and gaps in knowledge, have emerged which may open new directions for the development of rational and more efficacious treatments.
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Affiliation(s)
- Maria F M Braga
- Department of Anatomy, Physiology and Genetics and Program in Neuroscience, Uniformed Services University of the Health Science School of Medicine, 4301 Jones Bridge Road, Bethesda, MD, 20814, USA
| | - Jenifer Juranek
- Department of Pediatric Surgery, McGovern Medical School at the University of Texas Health Science Center at Houston (UTHealth), Houston, TX, 77030, USA
| | - Lee E Eiden
- Section On Molecular Neuroscience, National Institute of Mental Health, Intramural Research Program, Bethesda, MD, 20814, USA
| | - Zheng Li
- Section On Synapse Development and Plasticity, National Institute of Mental Health, Intramural Research Program, Bethesda, MD, 20814, USA
| | - Taiza H Figueiredo
- Department of Anatomy, Physiology and Genetics and Program in Neuroscience, Uniformed Services University of the Health Science School of Medicine, 4301 Jones Bridge Road, Bethesda, MD, 20814, USA
| | - Marcio de Araujo Furtado
- Department of Anatomy, Physiology and Genetics and Program in Neuroscience, Uniformed Services University of the Health Science School of Medicine, 4301 Jones Bridge Road, Bethesda, MD, 20814, USA
| | - Ann M Marini
- Department of Neurology and Program in Neuroscience, Uniformed Services University of the Health Sciences, 4301 Jones Bridge Road, Bethesda, MD, 20814, USA.
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13
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McCorkle TA, Romm ZL, Raghupathi R. Repeated Mild TBI in Adolescent Rats Reveals Sex Differences in Acute and Chronic Behavioral Deficits. Neuroscience 2022; 493:52-68. [PMID: 35469970 PMCID: PMC10074545 DOI: 10.1016/j.neuroscience.2022.04.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 04/08/2022] [Accepted: 04/14/2022] [Indexed: 01/01/2023]
Abstract
High school students who participate in contact sports are vulnerable to sustaining multiple concussions and exhibit deficits in cognitive function in both the acute and chronic phases and in emotional behavior in the chronic phase. Further, boys are more likely to suffer cognitive problems whereas girls tend to report depression and anxiety. The effects of repetitive mild TBI in adolescent (35-40-day old) male and female Sprague-Dawley rats on object location and spatial working memory (hippocampal-dependent) and object recognition memory (hippocampal-independent) at 1-and-4-weeks post-injury along with trait-dependent anxiety- and depressive-like behaviors at 5 weeks were examined. Compared to sham-injured rats, male brain-injured rats demonstrated significant impairment in both hippocampal-dependent and -independent memory tasks at both time points, whereas female brain-injured rats only exhibited impairment in these tests at the 4-week time point. In contrast, depressive-like behaviors were present in the forced swim test in only the female brain-injured animals at 5 weeks post-injury; anxiety-like behaviors were not evident in either male or female brain-injured animals. Histological analysis at 6 weeks after injury revealed that repeated mild TBI in male and female adolescent rats resulted in increased reactivity of astrocytes and microglia within the corpus callosum below the impact site and in the stratum oriens and stratum pyramidale of the CA2 region of the dorsal hippocampus. Together, these data are indicative of the differences in the temporal pattern of post-traumatic behavioral deficits between male and female animals and that female animals may be more likely to develop deficits in the chronic post-traumatic period.
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Affiliation(s)
- T A McCorkle
- Program in Neuroscience, Graduate School of Biomedical Sciences and Professional Studies, Philadelphia, PA 19129, United States
| | - Z L Romm
- Department of Neurobiology and Anatomy, Drexel University College of Medicine, Philadelphia, PA 19129, United States
| | - R Raghupathi
- Program in Neuroscience, Graduate School of Biomedical Sciences and Professional Studies, Philadelphia, PA 19129, United States; Department of Neurobiology and Anatomy, Drexel University College of Medicine, Philadelphia, PA 19129, United States.
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14
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Simmons S, Langlois LD, Oyola MG, Gouty S, Wu TJ, Nugent FS. Blast-Induced Mild Traumatic Brain Injury Alterations of Corticotropin-Releasing Factor Neuronal Activity in the Mouse Hypothalamic Paraventricular Nucleus. Front Synaptic Neurosci 2022; 13:804898. [PMID: 35153711 PMCID: PMC8828487 DOI: 10.3389/fnsyn.2021.804898] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 12/27/2021] [Indexed: 11/13/2022] Open
Abstract
Blast-induced mild traumatic brain injury (mbTBI) is the most common cause of TBI in US service members and veterans. Those exposed to TBI are at greater risk of developing neuropsychiatric disorders such as posttraumatic stress disorder, anxiety and depressive disorders, and substance use disorders following TBI. Previously, we have demonstrated that mbTBI increases anxiety-like behaviors in mice and dysregulates stress at the level of corticotropin-releasing factor (CRF) neurons in the paraventricular nucleus (PVN). To expand on how mTBI may dysregulate the stress axis centrally, here PVN CRF neuronal activity was evaluated using whole cell-patch clamp recordings in hypothalamic slices from sham and mbTBI adult male CRF:tdTomato mice 7 days post-injury. We found that mbTBI generally did not affect the neuronal excitability and intrinsic membrane properties of PVN CRF neurons; this injury selectively increased the frequency of spontaneous neuronal firing of PVN CRF neurons localized to the dorsal PVN (dPVN) but not ventral PVN (vPVN). Consistently, mbTBI-induced dPVN CRF hyperactivity was associated with pre- and post-synaptic depression of spontaneous GABAergic transmission onto dPVN CRF neurons suggesting that mbTBI-induced GABAergic synaptic dysfunction may underlie dPVN CRF neuronal hyperactivity and increases in dPVN CRF signaling. The present results provide the first evidence for mbTBI-induced alterations in PVN CRF neuronal activity and GABAergic synaptic function that could mediate hypothalamic CRF dysregulation following mbTBI contributing to stress psychopathology associated with blast injury.
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Affiliation(s)
- Sarah Simmons
- Department of Pharmacology and Molecular Therapeutics, Uniformed Services University of the Health Sciences, Bethesda, MD, United States
| | - Ludovic D. Langlois
- Department of Pharmacology and Molecular Therapeutics, Uniformed Services University of the Health Sciences, Bethesda, MD, United States
| | - Mario G. Oyola
- Department of Gynecologic Surgery and Obstetrics, Uniformed Services University of the Health Sciences, Bethesda, MD, United States
| | - Shawn Gouty
- Department of Pharmacology and Molecular Therapeutics, Uniformed Services University of the Health Sciences, Bethesda, MD, United States
| | - T. John Wu
- Department of Gynecologic Surgery and Obstetrics, Uniformed Services University of the Health Sciences, Bethesda, MD, United States
- *Correspondence: Fereshteh S. Nugent T. John Wu
| | - Fereshteh S. Nugent
- Department of Pharmacology and Molecular Therapeutics, Uniformed Services University of the Health Sciences, Bethesda, MD, United States
- *Correspondence: Fereshteh S. Nugent T. John Wu
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15
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Tucker LB, McCabe JT. Measuring Anxiety-Like Behaviors in Rodent Models of Traumatic Brain Injury. Front Behav Neurosci 2021; 15:682935. [PMID: 34776887 PMCID: PMC8586518 DOI: 10.3389/fnbeh.2021.682935] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 10/06/2021] [Indexed: 12/31/2022] Open
Abstract
Anxiety is a common complaint following acquired traumatic brain injury (TBI). However, the measurement of dysfunctional anxiety behavioral states following experimental TBI in rodents is complex. Some studies report increased anxiety after TBI, whereas others find a decreased anxiety-like state, often described as increased risk-taking behavior or impulsivity. These inconsistencies may reflect a lack of standardization of experimental injury models or of behavioral testing techniques. Here, we review the most commonly employed unconditioned tests of anxiety and discuss them in a context of experimental TBI. Special attention is given to the effects of repeated testing, and consideration of potential sensory and motor confounds in injured rodents. The use of multiple tests and alternative data analysis methods are discussed, as well as the potential for the application of common data elements (CDEs) as a means of providing a format for documentation of experimental details and procedures of each published research report. CDEs may improve the rigor, reproducibility, as well as endpoint for better relating findings with clinical TBI phenotypes and the final goal of translation. While this may not resolve all incongruities in findings across laboratories, it is seen as a way forward for standardized and universal data collection for improvement of data quality and sharing, and advance therapies for neuropsychiatric symptoms that often present for decades following TBI.
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Affiliation(s)
- Laura B Tucker
- Preclinical Behavior and Models Core, F. Edward Hébert School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD, United States.,Department of Anatomy, Physiology and Genetics, F. Edward Hébert School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD, United States
| | - Joseph T McCabe
- Preclinical Behavior and Models Core, F. Edward Hébert School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD, United States.,Department of Anatomy, Physiology and Genetics, F. Edward Hébert School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD, United States
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