Hoffer, M E; Szczupak, M; Kiderman, A; Crawford, J; Murphy, S; Marshall, K; Pelusso, C; Balaban, C
Neurosensory Symptom Complexes after Acute Mild Traumatic Brain Injury Journal Article
In: PLoS ONE, vol. 11, no. 1, pp. e0146039, 2016.
Abstract | BibTeX | Tags: *Brain Injuries/co [Complications], *Vestibular Function Tests, acute disease, Adolescent, adult, Affective Symptoms/et [Etiology], Brain Injuries/di [Diagnosis], Cluster Analysis, Dizziness/et [Etiology], Emergency Service, Fatigue/et [Etiology], Female, Gait Disorders, Headache/et [Etiology], Hospital, Hospitals, Humans, Male, middle aged, Mild Cognitive Impairment/et [Etiology], Military, Nausea/et [Etiology], Neurologic/et [Etiology], Neuropsychological Tests, Principal Component Analysis, Prognosis, Sex Factors, Surveys and Questionnaires, symptom assessment, Trauma Severity Indices, university, Young Adult
@article{Hoffer2016,
title = {Neurosensory Symptom Complexes after Acute Mild Traumatic Brain Injury},
author = {Hoffer, M E and Szczupak, M and Kiderman, A and Crawford, J and Murphy, S and Marshall, K and Pelusso, C and Balaban, C},
year = {2016},
date = {2016-01-01},
journal = {PLoS ONE},
volume = {11},
number = {1},
pages = {e0146039},
abstract = {Mild Traumatic Brain Injury (mTBI) is a prominent public health issue. To date, subjective symptom complaints primarily dictate diagnostic and treatment approaches. As such, the description and qualification of these symptoms in the mTBI patient population is of great value. This manuscript describes the symptoms of mTBI patients as compared to controls in a larger study designed to examine the use of vestibular testing to diagnose mTBI. Five symptom clusters were identified: Post-Traumatic Headache/Migraine, Nausea, Emotional/Affective, Fatigue/Malaise, and Dizziness/Mild Cognitive Impairment. Our analysis indicates that individuals with mTBI have headache, dizziness, and cognitive dysfunction far out of proportion to those without mTBI. In addition, sleep disorders and emotional issues were significantly more common amongst mTBI patients than non-injured individuals. A simple set of questions inquiring about dizziness, headache, and cognitive issues may provide diagnostic accuracy. The consideration of other symptoms may be critical for providing prognostic value and treatment for best short-term outcomes or prevention of long-term complications.},
keywords = {*Brain Injuries/co [Complications], *Vestibular Function Tests, acute disease, Adolescent, adult, Affective Symptoms/et [Etiology], Brain Injuries/di [Diagnosis], Cluster Analysis, Dizziness/et [Etiology], Emergency Service, Fatigue/et [Etiology], Female, Gait Disorders, Headache/et [Etiology], Hospital, Hospitals, Humans, Male, middle aged, Mild Cognitive Impairment/et [Etiology], Military, Nausea/et [Etiology], Neurologic/et [Etiology], Neuropsychological Tests, Principal Component Analysis, Prognosis, Sex Factors, Surveys and Questionnaires, symptom assessment, Trauma Severity Indices, university, Young Adult},
pubstate = {published},
tppubtype = {article}
}
Jin, Y; Bouyer, J; Haas, C; Fischer, I
Evaluation of the anatomical and functional consequences of repetitive mild cervical contusion using a model of spinal concussion Journal Article
In: Experimental Neurology, vol. 271, pp. 175–188, 2015.
Abstract | BibTeX | Tags: *Gait Disorders, *Spinal Cord Injuries/co [Complications], *Spinal Cord Injuries/pa [Pathology], *Spinal Cord/pa [Pathology], 0 (Antigens, 0 (Ectodysplasins), 0 (Glial Fibrillary Acidic Protein), ANALYSIS of variance, animal, Animals, Antigens, CD31), CD31/me [Metabolism], Contusions/co [Complications], Disease Models, EC 2-7-11-13 (Protein Kinase C), Ectodysplasins/me [Metabolism], Exploratory Behavior/ph [Physiology], Female, Glial Fibrillary Acidic Protein/me [Metabolism], Muscle Strength/ph [Physiology], Neurologic/et [Etiology], PAIN measurement, Protein Kinase C/me [Metabolism], Rats, Spinal Cord Injuries/et [Etiology], Spinal Cord/me [Metabolism], Sprague-Dawley
@article{Jin2015,
title = {Evaluation of the anatomical and functional consequences of repetitive mild cervical contusion using a model of spinal concussion},
author = {Jin, Y and Bouyer, J and Haas, C and Fischer, I},
year = {2015},
date = {2015-01-01},
journal = {Experimental Neurology},
volume = {271},
pages = {175--188},
abstract = {Spinal cord concussion is characterized by a transient loss of motor and sensory function that generally resolves without permanent deficits. Spinal cord concussions usually occur during vehicular accidents, falls, and sport activity, but unlike brain concussions, have received much less attention despite the potential for repeated injury leading to permanent neurological sequelae. Consequently, there is no consensus regarding decisions related to return to play following an episode of spinal concussion, nor an understanding of the short- and long-term consequences of repeated injury. Importantly, there are no models of spinal concussion to study the anatomical and functional sequelae of single or repeated injury. We have developed a new model of spinal cord concussion focusing on the anatomical and behavioral outcomes of single and repeated injury. Rats received a very mild (50 kdyn, IH impactor) spinal contusion at C5 and were separated into two groups three weeks after the initial injury--C1, which received a second, sham surgery, and C2, which received a second contusion at the same site. To track motor function and recovery, animals received weekly behavioral tests--BBB, CatWalkTM, cylinder, and Von Frey. Analysis of locomotor activity by BBB demonstrated that rats rapidly recovered, regaining near-normal function by one week after the first and second injury, which was confirmed using the more detailed CatWalkTM analysis. The cylinder test showed that a single contusion did not induce significant deficits of the affected limb, but that repeated injury resulted in significant alteration in paw preference, with animals favoring the unaffected limb. Intriguingly, Von Frey analysis demonstrated an increased sensitivity in the contralateral hindlimb in the C2 group vs. the C1 group. Anatomical analyses revealed that while the lesion volume of both groups was minimal, the area of spared white matter in the C2 group was significantly reduced 1 and 2mm rostral to the lesion epicenter. Reactive astrocytes were present in both groups, with the majority found at the lesion epicenter in the C1 group, whereas the C2 group demonstrated increased reactive astrocytes extending 1mm caudal to the lesion epicenter. Macrophages accumulated within the injured, dorsal and ipsilateral spinal cord, with significant increases at 2 and 3mm rostral to the epicenter in the C2 group. Our model is designed to represent the clinical presentation of spinal cord concussion, and highlight the susceptibility and functional sequelae of repeated injury. Future experiments will examine the temporal and spatial windows of vulnerability for repeated injuries.Copyright © 2015. Published by Elsevier Inc.},
keywords = {*Gait Disorders, *Spinal Cord Injuries/co [Complications], *Spinal Cord Injuries/pa [Pathology], *Spinal Cord/pa [Pathology], 0 (Antigens, 0 (Ectodysplasins), 0 (Glial Fibrillary Acidic Protein), ANALYSIS of variance, animal, Animals, Antigens, CD31), CD31/me [Metabolism], Contusions/co [Complications], Disease Models, EC 2-7-11-13 (Protein Kinase C), Ectodysplasins/me [Metabolism], Exploratory Behavior/ph [Physiology], Female, Glial Fibrillary Acidic Protein/me [Metabolism], Muscle Strength/ph [Physiology], Neurologic/et [Etiology], PAIN measurement, Protein Kinase C/me [Metabolism], Rats, Spinal Cord Injuries/et [Etiology], Spinal Cord/me [Metabolism], Sprague-Dawley},
pubstate = {published},
tppubtype = {article}
}
Hoffer, M E; Szczupak, M; Kiderman, A; Crawford, J; Murphy, S; Marshall, K; Pelusso, C; Balaban, C
Neurosensory Symptom Complexes after Acute Mild Traumatic Brain Injury Journal Article
In: PLoS ONE, vol. 11, no. 1, pp. e0146039, 2016.
@article{Hoffer2016,
title = {Neurosensory Symptom Complexes after Acute Mild Traumatic Brain Injury},
author = {Hoffer, M E and Szczupak, M and Kiderman, A and Crawford, J and Murphy, S and Marshall, K and Pelusso, C and Balaban, C},
year = {2016},
date = {2016-01-01},
journal = {PLoS ONE},
volume = {11},
number = {1},
pages = {e0146039},
abstract = {Mild Traumatic Brain Injury (mTBI) is a prominent public health issue. To date, subjective symptom complaints primarily dictate diagnostic and treatment approaches. As such, the description and qualification of these symptoms in the mTBI patient population is of great value. This manuscript describes the symptoms of mTBI patients as compared to controls in a larger study designed to examine the use of vestibular testing to diagnose mTBI. Five symptom clusters were identified: Post-Traumatic Headache/Migraine, Nausea, Emotional/Affective, Fatigue/Malaise, and Dizziness/Mild Cognitive Impairment. Our analysis indicates that individuals with mTBI have headache, dizziness, and cognitive dysfunction far out of proportion to those without mTBI. In addition, sleep disorders and emotional issues were significantly more common amongst mTBI patients than non-injured individuals. A simple set of questions inquiring about dizziness, headache, and cognitive issues may provide diagnostic accuracy. The consideration of other symptoms may be critical for providing prognostic value and treatment for best short-term outcomes or prevention of long-term complications.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Jin, Y; Bouyer, J; Haas, C; Fischer, I
Evaluation of the anatomical and functional consequences of repetitive mild cervical contusion using a model of spinal concussion Journal Article
In: Experimental Neurology, vol. 271, pp. 175–188, 2015.
@article{Jin2015,
title = {Evaluation of the anatomical and functional consequences of repetitive mild cervical contusion using a model of spinal concussion},
author = {Jin, Y and Bouyer, J and Haas, C and Fischer, I},
year = {2015},
date = {2015-01-01},
journal = {Experimental Neurology},
volume = {271},
pages = {175--188},
abstract = {Spinal cord concussion is characterized by a transient loss of motor and sensory function that generally resolves without permanent deficits. Spinal cord concussions usually occur during vehicular accidents, falls, and sport activity, but unlike brain concussions, have received much less attention despite the potential for repeated injury leading to permanent neurological sequelae. Consequently, there is no consensus regarding decisions related to return to play following an episode of spinal concussion, nor an understanding of the short- and long-term consequences of repeated injury. Importantly, there are no models of spinal concussion to study the anatomical and functional sequelae of single or repeated injury. We have developed a new model of spinal cord concussion focusing on the anatomical and behavioral outcomes of single and repeated injury. Rats received a very mild (50 kdyn, IH impactor) spinal contusion at C5 and were separated into two groups three weeks after the initial injury--C1, which received a second, sham surgery, and C2, which received a second contusion at the same site. To track motor function and recovery, animals received weekly behavioral tests--BBB, CatWalkTM, cylinder, and Von Frey. Analysis of locomotor activity by BBB demonstrated that rats rapidly recovered, regaining near-normal function by one week after the first and second injury, which was confirmed using the more detailed CatWalkTM analysis. The cylinder test showed that a single contusion did not induce significant deficits of the affected limb, but that repeated injury resulted in significant alteration in paw preference, with animals favoring the unaffected limb. Intriguingly, Von Frey analysis demonstrated an increased sensitivity in the contralateral hindlimb in the C2 group vs. the C1 group. Anatomical analyses revealed that while the lesion volume of both groups was minimal, the area of spared white matter in the C2 group was significantly reduced 1 and 2mm rostral to the lesion epicenter. Reactive astrocytes were present in both groups, with the majority found at the lesion epicenter in the C1 group, whereas the C2 group demonstrated increased reactive astrocytes extending 1mm caudal to the lesion epicenter. Macrophages accumulated within the injured, dorsal and ipsilateral spinal cord, with significant increases at 2 and 3mm rostral to the epicenter in the C2 group. Our model is designed to represent the clinical presentation of spinal cord concussion, and highlight the susceptibility and functional sequelae of repeated injury. Future experiments will examine the temporal and spatial windows of vulnerability for repeated injuries.Copyright © 2015. Published by Elsevier Inc.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Hoffer, M E; Szczupak, M; Kiderman, A; Crawford, J; Murphy, S; Marshall, K; Pelusso, C; Balaban, C
Neurosensory Symptom Complexes after Acute Mild Traumatic Brain Injury Journal Article
In: PLoS ONE, vol. 11, no. 1, pp. e0146039, 2016.
Abstract | BibTeX | Tags: *Brain Injuries/co [Complications], *Vestibular Function Tests, acute disease, Adolescent, adult, Affective Symptoms/et [Etiology], Brain Injuries/di [Diagnosis], Cluster Analysis, Dizziness/et [Etiology], Emergency Service, Fatigue/et [Etiology], Female, Gait Disorders, Headache/et [Etiology], Hospital, Hospitals, Humans, Male, middle aged, Mild Cognitive Impairment/et [Etiology], Military, Nausea/et [Etiology], Neurologic/et [Etiology], Neuropsychological Tests, Principal Component Analysis, Prognosis, Sex Factors, Surveys and Questionnaires, symptom assessment, Trauma Severity Indices, university, Young Adult
@article{Hoffer2016,
title = {Neurosensory Symptom Complexes after Acute Mild Traumatic Brain Injury},
author = {Hoffer, M E and Szczupak, M and Kiderman, A and Crawford, J and Murphy, S and Marshall, K and Pelusso, C and Balaban, C},
year = {2016},
date = {2016-01-01},
journal = {PLoS ONE},
volume = {11},
number = {1},
pages = {e0146039},
abstract = {Mild Traumatic Brain Injury (mTBI) is a prominent public health issue. To date, subjective symptom complaints primarily dictate diagnostic and treatment approaches. As such, the description and qualification of these symptoms in the mTBI patient population is of great value. This manuscript describes the symptoms of mTBI patients as compared to controls in a larger study designed to examine the use of vestibular testing to diagnose mTBI. Five symptom clusters were identified: Post-Traumatic Headache/Migraine, Nausea, Emotional/Affective, Fatigue/Malaise, and Dizziness/Mild Cognitive Impairment. Our analysis indicates that individuals with mTBI have headache, dizziness, and cognitive dysfunction far out of proportion to those without mTBI. In addition, sleep disorders and emotional issues were significantly more common amongst mTBI patients than non-injured individuals. A simple set of questions inquiring about dizziness, headache, and cognitive issues may provide diagnostic accuracy. The consideration of other symptoms may be critical for providing prognostic value and treatment for best short-term outcomes or prevention of long-term complications.},
keywords = {*Brain Injuries/co [Complications], *Vestibular Function Tests, acute disease, Adolescent, adult, Affective Symptoms/et [Etiology], Brain Injuries/di [Diagnosis], Cluster Analysis, Dizziness/et [Etiology], Emergency Service, Fatigue/et [Etiology], Female, Gait Disorders, Headache/et [Etiology], Hospital, Hospitals, Humans, Male, middle aged, Mild Cognitive Impairment/et [Etiology], Military, Nausea/et [Etiology], Neurologic/et [Etiology], Neuropsychological Tests, Principal Component Analysis, Prognosis, Sex Factors, Surveys and Questionnaires, symptom assessment, Trauma Severity Indices, university, Young Adult},
pubstate = {published},
tppubtype = {article}
}
Jin, Y; Bouyer, J; Haas, C; Fischer, I
Evaluation of the anatomical and functional consequences of repetitive mild cervical contusion using a model of spinal concussion Journal Article
In: Experimental Neurology, vol. 271, pp. 175–188, 2015.
Abstract | BibTeX | Tags: *Gait Disorders, *Spinal Cord Injuries/co [Complications], *Spinal Cord Injuries/pa [Pathology], *Spinal Cord/pa [Pathology], 0 (Antigens, 0 (Ectodysplasins), 0 (Glial Fibrillary Acidic Protein), ANALYSIS of variance, animal, Animals, Antigens, CD31), CD31/me [Metabolism], Contusions/co [Complications], Disease Models, EC 2-7-11-13 (Protein Kinase C), Ectodysplasins/me [Metabolism], Exploratory Behavior/ph [Physiology], Female, Glial Fibrillary Acidic Protein/me [Metabolism], Muscle Strength/ph [Physiology], Neurologic/et [Etiology], PAIN measurement, Protein Kinase C/me [Metabolism], Rats, Spinal Cord Injuries/et [Etiology], Spinal Cord/me [Metabolism], Sprague-Dawley
@article{Jin2015,
title = {Evaluation of the anatomical and functional consequences of repetitive mild cervical contusion using a model of spinal concussion},
author = {Jin, Y and Bouyer, J and Haas, C and Fischer, I},
year = {2015},
date = {2015-01-01},
journal = {Experimental Neurology},
volume = {271},
pages = {175--188},
abstract = {Spinal cord concussion is characterized by a transient loss of motor and sensory function that generally resolves without permanent deficits. Spinal cord concussions usually occur during vehicular accidents, falls, and sport activity, but unlike brain concussions, have received much less attention despite the potential for repeated injury leading to permanent neurological sequelae. Consequently, there is no consensus regarding decisions related to return to play following an episode of spinal concussion, nor an understanding of the short- and long-term consequences of repeated injury. Importantly, there are no models of spinal concussion to study the anatomical and functional sequelae of single or repeated injury. We have developed a new model of spinal cord concussion focusing on the anatomical and behavioral outcomes of single and repeated injury. Rats received a very mild (50 kdyn, IH impactor) spinal contusion at C5 and were separated into two groups three weeks after the initial injury--C1, which received a second, sham surgery, and C2, which received a second contusion at the same site. To track motor function and recovery, animals received weekly behavioral tests--BBB, CatWalkTM, cylinder, and Von Frey. Analysis of locomotor activity by BBB demonstrated that rats rapidly recovered, regaining near-normal function by one week after the first and second injury, which was confirmed using the more detailed CatWalkTM analysis. The cylinder test showed that a single contusion did not induce significant deficits of the affected limb, but that repeated injury resulted in significant alteration in paw preference, with animals favoring the unaffected limb. Intriguingly, Von Frey analysis demonstrated an increased sensitivity in the contralateral hindlimb in the C2 group vs. the C1 group. Anatomical analyses revealed that while the lesion volume of both groups was minimal, the area of spared white matter in the C2 group was significantly reduced 1 and 2mm rostral to the lesion epicenter. Reactive astrocytes were present in both groups, with the majority found at the lesion epicenter in the C1 group, whereas the C2 group demonstrated increased reactive astrocytes extending 1mm caudal to the lesion epicenter. Macrophages accumulated within the injured, dorsal and ipsilateral spinal cord, with significant increases at 2 and 3mm rostral to the epicenter in the C2 group. Our model is designed to represent the clinical presentation of spinal cord concussion, and highlight the susceptibility and functional sequelae of repeated injury. Future experiments will examine the temporal and spatial windows of vulnerability for repeated injuries.Copyright © 2015. Published by Elsevier Inc.},
keywords = {*Gait Disorders, *Spinal Cord Injuries/co [Complications], *Spinal Cord Injuries/pa [Pathology], *Spinal Cord/pa [Pathology], 0 (Antigens, 0 (Ectodysplasins), 0 (Glial Fibrillary Acidic Protein), ANALYSIS of variance, animal, Animals, Antigens, CD31), CD31/me [Metabolism], Contusions/co [Complications], Disease Models, EC 2-7-11-13 (Protein Kinase C), Ectodysplasins/me [Metabolism], Exploratory Behavior/ph [Physiology], Female, Glial Fibrillary Acidic Protein/me [Metabolism], Muscle Strength/ph [Physiology], Neurologic/et [Etiology], PAIN measurement, Protein Kinase C/me [Metabolism], Rats, Spinal Cord Injuries/et [Etiology], Spinal Cord/me [Metabolism], Sprague-Dawley},
pubstate = {published},
tppubtype = {article}
}