Neuroprotective effects of collagen matrix in rats after traumatic brain injury

2015 ◽  
Vol 33 (2) ◽  
pp. 95-104 ◽  
Author(s):  
Samuel S. Shin ◽  
Ramesh Grandhi ◽  
Jeremy Henchir ◽  
Hong Q. Yan ◽  
Stephen F. Badylak ◽  
...  
2019 ◽  
Vol 55 (2) ◽  
pp. 67-73 ◽  
Author(s):  
Joseph A Morra ◽  
Adekola O Alao

Objective Schizophrenia is a chronic psychotic disorder in which patients experience positive and negative symptoms for over six months. Schizophrenia is associated with early mortality, with 40% of this excess mortality due to suicide. This is a case of patient with schizophrenia who was treated with quetiapine after suffering a traumatic brain injury and recovered enough to be discharged to a rehabilitation unit. This case illustrates the neuroprotective effects of quetiapine in treating neurologic deficits in a patient who recently suffered a traumatic brain injury. Method This is a case report of a patient with schizophrenia treated in the hospital setting. He was placed on quetiapine after suffering a traumatic brain injury due to a suicide attempt in which he shot himself with a nail gun. Results The patient initially presented with neurologic deficits suggestive of traumatic brain injury (inattention, memory loss, muscle weakness) and psychosis from schizophrenia. He was treated with quetiapine and recovered enough to be discharged to a rehabilitation unit. Conclusion Quetiapine, a second-generation antipsychotic, has been shown to significantly decrease blood–brain barrier hyperpermeability by preserving tight junction integrity in small animal models. This anti-inflammatory effect may also help to preserve neurogenesis in patients with traumatic brain injury, as shown in this case. This case may help elucidate the nature of quetiapine’s neuroprotective effects in patients who have suffered traumatic brain injury and also highlights the need to further investigate other atypical antipsychotics and their potential neuroprotective role in treating traumatic brain injury.


2008 ◽  
Vol 25 (Sup 44) ◽  
pp. 140
Author(s):  
J. Oebels ◽  
J. Weis ◽  
N. Franks ◽  
R. Rossaint ◽  
M. Coburn

2010 ◽  
Vol 30 (5) ◽  
pp. 1008-1016 ◽  
Author(s):  
Orli Thau-Zuchman ◽  
Esther Shohami ◽  
Alexander G Alexandrovich ◽  
Ronen R Leker

Activation of endogenous stem cells has been proposed as a novel form of therapy in a variety of neurologic disorders including traumatic brain injury (TBI). Vascular endothelial growth factor (VEGF) is expressed in the brain after TBI and serves as a potent activator of angiogenesis and neurogenesis. In this study, we infused exogenous VEGF into the lateral ventricles of mice for 7 days after TBI using mini-osmotic pumps to evaluate the effects on recovery and functional outcome. The results of our study show that VEGF significantly increases the number of proliferating cells in the subventricular zone and in the perilesion cortex. Fate analysis showed that most newborn cells differentiated into astrocytes and oligodendroglia and only a few cells differentiated into neurons. Functional outcome was significantly better in mice treated with VEGF compared with vehicle-treated animals after TBI. Injury size was significantly smaller at 90 days after TBI in VEGF-treated animals, suggesting additional neuroprotective effects of VEGF. In conclusion, VEGF significantly augments neurogenesis and angiogenesis and reduces lesion volumes after TBI. These changes are associated with significant improvement in recovery rates and functional outcome.


2015 ◽  
Vol 597 ◽  
pp. 137-142 ◽  
Author(s):  
Ataç Sönmez ◽  
Oya Sayın ◽  
Seren Gülşen Gürgen ◽  
Meryem Çalişir

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