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https://www.readbyqxmd.com/read/28077713/reversible-disruption-of-neuronal-mitochondria-by-ischemic-and-traumatic-injury-revealed-by-quantitative-two-photon-imaging-in-the-neocortex-of-anesthetized-mice
#1
Mikhail Kislin, Jeremy Sword, Ioulia V Fomitcheva, Deborah Croom, Evgeny Pryazhnikov, Eero Lihavainen, Dmytro Toptunov, Heikki Rauvala, Andre S Ribeiro, Leonard Khiroug, Sergei A Kirov
: Mitochondria play a variety of functional roles in cortical neurons, from metabolic support and neuroprotection to the release of cytokines that trigger apoptosis. In dendrites, mitochondrial structure is closely linked to their function, and fragmentation (fission) of the normally elongated mitochondria indicates loss of their function under pathological conditions, such as stroke and brain trauma. Using in vivo two-photon microscopy in mouse brain, we quantified mitochondrial fragmentation in a full spectrum of cortical injuries, ranging from severe to mild...
January 11, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28070973/dissociation-between-amygdala-and-bed-nucleus-of-the-stria-terminalis-during-threat-anticipation-in-female-post-traumatic-stress-disorder-patients
#2
Leonie Brinkmann, Christine Buff, Paula Neumeister, Sara V Tupak, Michael P I Becker, Martin J Herrmann, Thomas Straube
Feelings of uncontrollability and anxiety regarding possibly harmful events are key features of post-traumatic stress disorder (PTSD) symptomatology. Due to a lack of studies, the neural correlates of anticipatory anxiety in PTSD are still poorly understood. During functional magnetic resonance imaging, female PTSD patients with interpersonal violence trauma and healthy controls (HC) anticipated the temporally unpredictable presentation of aversive (human scream) or neutral sounds. Based on separate analysis models, we investigated phasic and sustained brain activations...
January 10, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/28069157/mri-detection-of-cerebral-lesions-in-post-traumatic-anisocoria-specificity-and-prognostic-significance
#3
D Woischneck, B Schmitz, T Kapapa
AIM: To identify whether increased numbers of brainstem lesions are found in the presence of a post-traumatic pupillary function disturbance and classify them anatomically. MATERIALS AND METHODS: In this study, a diagnostic magnetic resonance imaging (MRI) examination was performed within 8 days after traumatic brain injury (TBI) in patients who had been unconscious for more than 24 hours post-TBI. The Glasgow Outcome Scale was evaluated 6 months after TBI. The data obtained from 140 consecutively enrolled patients between 2005 and 2011 were analysed...
January 7, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28067012/venous-thromboembolism-in-pediatric-trauma-patients-ten-year-experience-and-long-term-follow-up-in-a-tertiary-care-center
#4
Christine M Leeper, Madhav Vissa, James D Cooper, Lynn M Malec, Barbara A Gaines
BACKGROUND: Pediatric trauma patients are at high risk for development of venous thromboembolism (VTE). Our objective is to describe incidence, risk factors, and timing of development of VTE, anticoagulation complications, and long-term VTE outcomes in a critically injured pediatric population. PROCEDURE: We did a retrospective review of pediatric (0-17 years) trauma admissions to intensive care unit from 2005 to 2014. Our center employs VTE screening and prevention protocols for high-risk patients based on hypercoagulable history, age, injuries, and medical interventions...
January 9, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28064018/alterations-in-nitric-oxide-homeostasis-during-traumatic-brain-injury
#5
REVIEW
Andrey V Kozlov, Soheyl Bahrami, Heinz Redl, Csaba Szabo
Changes in nitric oxide (NO) levels have been often associated with various forms of trauma, including secondary damage after traumatic brain injury (TBI). Several studies demonstrate the upregulation of NO synthase (NOS) enzymes, and concomitant increases in brain NO levels, which contribute to the TBI-associated glutamate cytotoxicity, including the pathogenesis of mitochondrial dysfunction. TBI is also associated with elevated NO levels in remote organs, indicating that TBI can induce systemic changes in NO regulation, which can be either beneficial or detrimental...
January 4, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28060201/epidemiology-of-comorbid-conditions-among-adults-50-years-and-older-with-traumatic-brain-injury
#6
Raj G Kumar, Shannon B Juengst, Zhensheng Wang, Kristen Dams-OʼConnor, Sureyya S Dikmen, Therese M OʼNeil-Pirozzi, Marie N Dahdah, Flora M Hammond, Elizabeth R Felix, Patricia M Arenth, Amy K Wagner
OBJECTIVES: Aging individuals with traumatic brain injury (TBI) experience multiple comorbidities that can affect recovery from injury. The objective of this study was to describe the most commonly co-occurring comorbid conditions among adults 50 years and older with TBI. SETTING: Level I Trauma centers. PARTICIPANTS: Adults 50 years and older with moderate/severe TBI enrolled in the TBI-Model Systems (TBI-MS) from 2007 to 2014 (n = 2134)...
January 5, 2017: Journal of Head Trauma Rehabilitation
https://www.readbyqxmd.com/read/28052919/traumatic-brain-injuries-in-older-adults-6-years-of-data-for-one-uk-trauma-centre-retrospective-analysis-of-prospectively-collected-data
#7
Carol Hawley, Magdy Sakr, Sarah Scapinello, Jesse Salvo, Paul Wrenn
OBJECTIVES: Our aim was to determine the incidence of traumatic brain injury (TBI) in older adults and investigate the relationship between injury characteristics and outcomes. METHODS: Retrospective analysis of prospectively collected data submitted to Trauma Audit and Research Network (TARN) database for a major trauma centre in the West Midlands, UK, from 2008 to 2014. The Mayo Scale was used to categorise TBI. All patients were aged ≥65 years and were admitted with head or brain injuries meeting TARN inclusion criteria: injury resulting in immediate admission to hospital for 3 days, admitted to a high dependency area or death following trauma...
January 4, 2017: Emergency Medicine Journal: EMJ
https://www.readbyqxmd.com/read/28045980/long-term-effects-of-acute-stress-on-the-prefrontal-limbic-system-in-the-healthy-adult
#8
Yu Li, Xin Hou, Dongtao Wei, Xue Du, Qinglin Zhang, Guangyuan Liu, Jiang Qiu
Most people are exposed to at least one traumatic event during the course of their lives, but large numbers of people do not develop posttraumatic stress disorders. Although previous studies have shown that repeated and chronic stress change the brain's structure and function, few studies have focused on the long-term effects of acute stressful exposure in a nonclinical sample, especially the morphology and functional connectivity changes in brain regions implicated in emotional reactivity and emotion regulation...
2017: PloS One
https://www.readbyqxmd.com/read/28039943/the-pecarn-tbi-rules-do-not-apply-to-abusive-head-trauma
#9
Julia Nicole Magana, Nathan Kuppermann
The Pediatric Emergency Care Applied Research Network (PECARN) traumatic brain injury (TBI) prediction rules were developed to identify children at very low risk for clinically-important TBIs (ciTBIs), for whom computed tomography (CT) scans can typically be obviated.(1) The PECARN prediction rules have been validated in several settings and countries.(2-5) The PECARN TBI rules, one developed for children younger than 2 years, and the other for those 2 years and older, rely on accurate patient history and physical examination findings gathered at the time of emergency department (ED) presentation...
December 31, 2016: Academic Emergency Medicine: Official Journal of the Society for Academic Emergency Medicine
https://www.readbyqxmd.com/read/28038986/differential-effects-of-minocycline-on-microglial-activation-and-neurodegeneration-following-closed-head-injury-in-the-neonate-rat
#10
L A Hanlon, R Raghupathi, J W Huh
The role of microglia in the pathophysiology of injury to the developing brain has been extensively studied. In children under the age of 4 who have sustained a traumatic brain injury (TBI), markers of microglial/macrophage activation were increased in the cerebrospinal fluid and were associated with worse neurologic outcome. Minocycline is an antibiotic that decreases microglial/macrophage activation following hypoxic-ischemia in neonatal rodents and TBI in adult rodents thereby reducing neurodegeneration and behavioral deficits...
December 27, 2016: Experimental Neurology
https://www.readbyqxmd.com/read/28033135/omega-3-fatty-acid-supplementation-and-warfarin-a-lethal-combination-in-traumatic-brain-injury
#11
Brian W Gross, Maria Gillio, Cole D Rinehart, Caitlin A Lynch, Frederick B Rogers
Polyunsaturated fatty acids such as omega-3 eicosapentaenoic acid and omega-6 docosahexaenoic acid, found in over-the-counter fish oil supplements, are often consumed for their beneficial, prophylactic, anti-inflammatory effects. Although the mechanisms of action are not fully known, a diet rich in polyunsaturated fats may reduce the risk of hyperlipidemia, atherosclerosis, high low-density lipoprotein cholesterol levels, hypertension, and inflammatory diseases. Masked by its many benefits, the risks of omega-3 fatty acid supplementation are often underappreciated, particularly its ability to inhibit platelet aggregation and promote bleeding in patients taking anticoagulant medications...
January 2017: Journal of Trauma Nursing: the Official Journal of the Society of Trauma Nurses
https://www.readbyqxmd.com/read/28032120/inhibition-of-poly-adp-ribosylation-fails-to-increase-axonal-regeneration-or-improve-functional-recovery-after-adult-mammalian-cns-injury
#12
Xingxing Wang, Yuichi Sekine, Alexandra B Byrne, William B J Cafferty, Marc Hammarlund, Stephen M Strittmatter
After traumatic damage of the brain or spinal cord, many surviving neurons are disconnected, and recovery of function is limited by poor axon regeneration. Recent data have suggested that poly ADP-ribosylation plays a role in limiting axonal regrowth such that inhibition of poly (ADP-ribose) polymerase (PARP) may have therapeutic efficacy for neurological recovery after trauma. Here, we tested systemic administration of the PARP inhibitor, veliparib, and showed effective suppression of PARylation in the mouse CNS...
November 2016: ENeuro
https://www.readbyqxmd.com/read/28030638/effects-of-intracranial-pressure-monitoring-on-mortality-in-patients-with-severe-traumatic-brain-injury-a-meta-analysis
#13
Liang Shen, Zhuo Wang, Zhongzhou Su, Sheng Qiu, Jie Xu, Yue Zhou, Ai Yan, Rui Yin, Bin Lu, Xiaohu Nie, Shufa Zhao, Renfu Yan
BACKGROUND: The Brain Trauma Foundation (BTF) guidelines published in 2007 suggest some indications for intracranial pressure (ICP) monitoring in severe traumatic brain injury (TBI). However, some studies had not shown clinical benefit in patients with severe TBI; several studies had even reported that ICP monitoring was associated with an increased mortality rate. The effect of ICP monitoring has remained controversial, regardless of the ICP monitoring guidelines. Here we performed a meta-analysis of published studies to assess the effects of ICP monitoring in patients with severe TBI...
2016: PloS One
https://www.readbyqxmd.com/read/28018679/activation-of-sphingosine-1-phosphate-receptor-1-enhances-hippocampus-neurogenesis-in-a-rat-model-of-traumatic-brain-injury-an-involvement-of-mek-erk-signaling-pathway
#14
Yuqin Ye, Zhenyu Zhao, Hongyu Xu, Xin Zhang, Xinhong Su, Yongxiang Yang, Xinguang Yu, Xiaosheng He
Among sphingosine 1-phosphate receptors (S1PRs) family, S1PR1 has been shown to be the most highly expressed subtype in neural stem cells (NSCs) and plays a crucial role in the migratory property of NSCs. Recent studies suggested that S1PR1 was expressed abundantly in the hippocampus, a specific neurogenic region in rodent brain for endogenous neurogenesis throughout life. However, the potential association between S1PR1 and neurogenesis in hippocampus following traumatic brain injury (TBI) remains unknown...
2016: Neural Plasticity
https://www.readbyqxmd.com/read/28009748/mortality-in-canadian-trauma-systems-a-multicenter-cohort-study
#15
Lynne Moore, David Evans, Sayed M Hameed, Natalie L Yanchar, Henry T Stelfox, Richard Simons, John Kortbeek, Gilles Bourgeois, Julien Clément, François Lauzier, Avery Nathens, Alexis F Turgeon
OBJECTIVE: To measure the variation in trauma center mortality across Canadian trauma systems, assess the contribution of traumatic brain injury and thoracoabdominal injury to observed variations, and evaluate whether the presence of recommended trauma system components is associated with mortality. SUMMARY BACKGROUND DATA: Injuries represent one of the leading causes of mortality, disability, and health care costs worldwide. Trauma systems have improved injury outcomes, but the impact of trauma system configuration on mortality is unknown...
January 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28005912/benchmarking-prehospital-and-emergency-department-care-for-argentine-children-with-traumatic-brain-injury-for-the-south-american-guideline-adherence-group
#16
Monica S Vavilala, Silvia B Lujan, Qian Qiu, Gustavo J Petroni, Nicolás M Ballarini, Nahuel Guadagnoli, María Alejandra Depetris, Gabriela A Faguaga, Gloria M Baggio, Leonardo O Busso, Mirta E García, Osvaldo R González Carrillo, Paula L Medici, Silvia S Sáenz, Elida E Vanella, Anthony Fabio, Michael J Bell
OBJECTIVE: There is little information on the type of early care provided to children with traumatic brain injury (TBI) in low middle income countries. We benchmarked early prehospital [PH] and emergency department [ED] pediatric TBI care in Argentina. METHODS: We conducted a secondary analysis of data from patients previously enrolled in a prospective seven center study of children with TBI. Eligible participants were patients 0-18 years, and had diagnosis of TBI (admission Glasgow Coma scale score [GCS] < 13 or with GCS 14-15 and abnormal head CT scan within 48 hours of admission, and head AIS > 0)...
2016: PloS One
https://www.readbyqxmd.com/read/28000125/prevalence-and-risk-factors-for-early-seizure-in-patients-with-traumatic-brain-injury-analysis-from-national-trauma-data-bank
#17
Shahram Majidi, Yamane Makke, Amr Ewida, Bahareh Sianati, Adnan I Qureshi, Mohamad Z Koubeissi
BACKGROUND: Traumatic brain injury (TBI) is a well-known risk factor for seizures. We aimed to identify the frequency and risk factors for seizure occurrence during hospitalization for TBI. METHODS: We used ICD-9-CM codes to identify patients 18 years of age or older from the National Trauma Data Bank who were admitted with TBI. We also used ICD-9-CM codes to identify the subset who had seizures during hospitalization. Patient demographics, comorbidities, Glasgow Coma Scale (GCS) score, Injury Severity Score Abbreviated Injury Scale (ISSAIS), in-hospital complications, and discharge disposition were compared in the seizure group (SG) and no-seizure group (NSG)...
December 20, 2016: Neurocritical Care
https://www.readbyqxmd.com/read/27999766/cerebral-hemorrhage-following-chiropractic-activator-treatment-case-report-and-review-of-literature
#18
Fred L Cohen
Background Despite widespread utilization of chiropractic treatment for various ailments, there is a paucity of documentation regarding intracerebral hemorrhage related to chiropractic trauma. Stroke has been reported from cervical manipulation, although with a suggested low incidence. Activator treatment, an instrument that produces a high-velocity, low-amplitude impact to the spine, is considered especially safe. There are no prior reports of intracerebral hemorrhage resulting from a chiropractic activator treatment...
October 2016: Journal of Neurological Surgery Reports
https://www.readbyqxmd.com/read/27998375/sleep-disturbances-in-oef-oif-ond-veterans-associations-with-ptsd-personality-and-coping
#19
Mackenzie J Lind, Emily Brown, Leah Farrell-Carnahan, Ruth C Brown, Sage Hawn, Erin Berenz, Scott McDonald, Treven Pickett, Carla Kmett Danielson, Suzanne Thomas, Ananda B Amstadter
STUDY OBJECTIVES: Sleep disturbances are well documented in relation to trauma exposure and posttraumatic stress disorder (PTSD), but correlates of such disturbances remain understudied in veteran populations. We conducted a preliminary study of sleep disturbances in Operation Enduring Freedom, Operation Iraqi Freedom, and Operation New Dawn veterans (n = 133; mean [standard deviation] age = 29.8 [4.7] y). METHODS: Veterans were assigned to one of three groups based on responses to the Clinician Administered PTSD Scale: control (no trauma-exposure [TE] or PTSD), TE, and PTSD...
December 16, 2016: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
https://www.readbyqxmd.com/read/27995513/progesterone-provides-the-pleiotropic-neuroprotective-effect-on-traumatic-brain-injury-through-the-nrf2-are-signaling-pathway
#20
Mei Zhang, Jianyue Wu, Haojun Ding, Wentian Wu, Guomin Xiao
OBJECTIVE: This study was to investigate the role of Nrf2/ARE signaling pathway in the pleiotropic neuroprotective effect of progesterone (PROG) on traumatic brain injury (TBI). METHODS: The Nrf2-knockout (Nrf2-/-) and C57 mice were respectively subjected to a lateral cortical impact injury caused by a free-falling object and randomly divided into three groups: sham-operated, trauma, and trauma + PROG treatment group. The PROG treatment group was given PROG (32 mg/kg of body weight, intraperitoneal injection) immediately after injury...
December 19, 2016: Neurocritical Care
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