scholarly journals Elevated levels of serum, but not salivary, brain-derived neurotrophic factor following mild traumatic brain injury in collegiate athletes post return-to-play

2019 ◽  
Vol 3 ◽  
pp. 205970021989410
Author(s):  
Taylor R Susa ◽  
Ryan D Brandt ◽  
Keara J Kangas ◽  
Catherine E Bammert ◽  
Erich N Ottem ◽  
...  
Keyword(s):  
Traumatic Brain Injury ◽  
Brain Injury ◽  
Mild Traumatic Brain Injury ◽  
Neurotrophic Factor ◽  
Collegiate Athletes ◽  
Brain Derived Neurotrophic Factor ◽  
Return To Play ◽  
Control Group ◽  
The Relationship ◽  
Serum Bdnf

Brain-derived neurotrophic factor (BDNF) helps restore neuronal function following mild traumatic brain injury. BDNF levels can be obtained in blood serum and more recently in saliva. However, the relationship between serum and salivary BDNF is poorly understood—especially in relation to alterations in BDNF levels following mild traumatic brain injury. In this study, serum and salivary BDNF were collected from a sample of 42 collegiate student athletes. Half of the participants were recently cleared by a physician and/or an athletic trainer to return-to-play after experiencing a sports-related concussion. The other half had not experienced a concussion within the past year and were matched by age, sex, sport, and time of sample. Results suggest that incidences of depression, anxiety, and stress were all elevated in the concussion group, relative to the control participants. When controlling for stress-related negative affect, serum BDNF was elevated in the concussion group. However, there was no difference in salivary BDNF. Serum and salivary BDNF were uncorrelated across the entire sample. Yet, these measures of BDNF were correlated in the concussion group, but not the control group. In sum, serum BDNF is elevated in concussion post return-to-play; however, further research is needed to explore the utility of salivary BDNF following concussion.

scholarly journals B-72 The Relationship between Anxiety and Postconcussive Symptomology in patients with Mild Traumatic Brain Injury

2019 ◽  
Vol 34 (6) ◽  
pp. 1020-1020
Author(s):  
K Cornett
Keyword(s):  
Traumatic Brain Injury ◽  
Brain Injury ◽  
Mild Traumatic Brain Injury ◽  
Injury Severity ◽  
Small Sample ◽  
Future Research ◽  
Control Group ◽  
Patient Report ◽  
The Relationship ◽  
Report Measure

Abstract Objective Research literature has demonstrated the role that pre-morbid anxiety has in prolonging recovery from mild traumatic brain injury (mTBI). The aim of this investigation is to clarify the degree of the relationship between anxiety and postconcussive symptomology in patients with mTBI. Method This study compared scores from a patient-report measure of anxiety, the General Anxiety Disorder-7 (GAD-7), to scores from a patient-report measure of postconcussion symptom severity, the Neurobehavioral Symptom Inventory (NSI). Participants were recruited from September 2018 to December 2019 who had been referred for clinical evaluation to Rehabilitation Institute of Washington’s Brain Injury Services (a privately-run, interdisciplinary, outpatient clinic). 39 adult participants (30 males and nine females) completed both the GAD-7 and NSI. No control group was used. Injury severity level was ascertained via review of the medical records. Patients underwent an abbreviated evaluation with a clinical neuropsychologist. As a part of this initial evaluation, patients completed an intake packet, which included the NSI and GAD-7. Results The relationship between the ordinal variables (i.e., anxiety and postconscussive symptomology) was assessed using spearman’s rho. Anxiety had a strong, statistically significant relationship with postconcussive symptomology (rho = 0.670, p = 0.000). Conclusions Anxiety and postconcussive symptomology severity are associated in this population of patients with mTBI. Limitations of this current investigation include a small sample size and no control group. This study indicates the need for controlled studies in future research to address the above-encountered limitations. Nevertheless, this study lends support to the prevalence of anxiety in those with elevated postconcussive symptomology and the need to monitor this in assessment and treatment.

scholarly journals Brain-derived neurotrophic factor: Biopsychosocial correlates and exercise response in mild traumatic brain injury

Neurology ◽  
2018 ◽  
Vol 91 (23 Supplement 1) ◽  
pp. S13.1-S13
Author(s):  
Snyder Aliyah ◽  
Bauer Russell ◽  
Fitzgerald David ◽  
Clugston James ◽  
Thompson Floyd ◽  
...  
Keyword(s):  
Traumatic Brain Injury ◽  
Brain Injury ◽  
Mild Traumatic Brain Injury ◽  
Neurotrophic Factor ◽  
Brain Derived Neurotrophic Factor ◽  
Exercise Response

scholarly journals Diagnostic Approach to Traumatic Axonal Injury of the Spinothalamic Tract in Individual Patients with Mild Traumatic Brain Injury

Diagnostics ◽  
2019 ◽  
Vol 9 (4) ◽  
pp. 199 ◽  
Author(s):  
Jang ◽  
Lee
Keyword(s):  
Traumatic Brain Injury ◽  
Brain Injury ◽  
Mild Traumatic Brain Injury ◽  
Axonal Injury ◽  
Control Group ◽  
Central Pain ◽  
Traumatic Axonal Injury ◽  
Spinothalamic Tract ◽  
Statistical Comparison ◽  
Control Subjects

Objectives: We investigated an approach for the diagnosis of traumatic axonal injury (TAI) of the spinothalamic tract (STT) that was based on diffusion tensor tractography (DTT) results and a statistical comparison of individual patients who showed central pain following mild traumatic brain injury (mTBI) with the control group. Methods: Five right-handed female patients in their forties and with central pain following mTBI and 12 age-, sex-, and handedness-matched healthy control subjects were recruited. After DTT reconstruction of the STT, we analyzed the STT in terms of three DTT parameters (fractional anisotropy (FA), mean diffusivity (MD), and fiber number (FN)) and its configuration (narrowing and tearing). To assess narrowing, we determined the area of the STT on an axial slice of the subcortical white matter. Results: the FN values were significantly lower in at least one hemisphere of each patient when compared to those of the control subjects (p < 0.05). Significant decrements from the STT area in the control group were observed in at least one hemisphere of each patient (p < 0.05). Regarding configurational analysis, the STT showed narrowing and/or partial tearing in at least one hemisphere of each of the five patients. Conclusions: Herein, we demonstrate a DTT-based approach for the diagnosis of TAI of the STT. The approach involves a statistical comparison between DTT parameters of individual patients who show central pain following mTBI and those of an age-, gender-, and handedness-matched control group. We think that the method described in this study can be useful in the diagnosis of TAI of the STT in individual mTBI patients.

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