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Activation of neuronal Ras ‐related C3 botulinum toxin substrate 1 (Rac1) improves post‐stroke recovery and axonal plasticity in mice
We propose that activation of neuronal Rac1 mediates the release of BDNF via PAK1 signaling, which further promotes axonal plasticity and alleviates astrogliosis, and eventually contributes to functional recovery after brain ischemia. Targeting neuronal Rac1 may offer a potential therapeutic target for promoting brain remapping and functional recovery after stroke. AbstractLong-term disability after stroke is common but the mechanisms of post-stroke recovery remain unclear. Cerebral Ras-related C3 botulinum toxin substrate (Rac) 1 contributes to functional recovery after ischemic stroke in mice. As Rac1 plays divergent rol...
Source: Journal of Neurochemistry - May 22, 2021 Category: Neuroscience Authors: Fan Bu, Yashasvee Munshi, J Weldon Furr, Jia ‐wei Min, Li Qi, Anthony Patrizz, Zachary R. Spahr, Akihiko Urayama, Julia K. Kofler, Louise D. McCullough, Jun Li Tags: ORIGINAL ARTICLE Source Type: research

Activation of Neuronal Ras ‐Related C3 Botulinum Toxin Substrate 1 (Rac1) Improves Post‐Stroke Recovery and Axonal Plasticity in Mice
AbstractLong ‐term disability after stroke is common but the mechanisms of post‐stroke recovery is unclear. Cerebral Ras‐related C3 botulinum toxin substrate (Rac) 1 contributes to functional recovery after ischemic stroke in mice. As Rac1 plays divergent roles in individual cell types after central neural system injury, we herein examined the specific role of neuronal Rac1 in post‐stroke recovery and axonal regeneration. Young male mice were subjected to 60‐minutes middle cerebral artery occlusion (MCAO). Inducible deletion of neuronal Rac1 by daily intraperitoneal injection of tamoxifen (2 mg/4 0 g) into Thy1�...
Source: Journal of Neurochemistry - September 21, 2020 Category: Neuroscience Authors: Fan Bu, Yashasvee Munshi, J Weldon Furr, Jia ‐wei Min, Li Qi, Anthony Patrizz, Zachary R. Spahr, Akihiko Urayama, Julia K. Kofler, Louise D. McCullough, Jun Li Tags: ORIGINAL ARTICLE Source Type: research

Using Dental Pulp Stem Cells for Stroke Therapy
Conclusion and Future Perspectives Stem cell-based therapy is a promising alternative for stroke treatment. While stem cells from different sources, including induced PSC, ESC, MSC, and NSC, have been investigated, using NSC and enhancing the natural mechanisms is most appropriate for brain repair. In preclinical models of stroke, stem cell transplantation has led to positive outcomes through a variety of cellular and molecular mechanisms, many being mediated by the array of beneficial factors produced by the cells. Recent advances in cellular reprogramming have provided alternative sources of NSC to be investigated, allo...
Source: Frontiers in Neurology - April 28, 2019 Category: Neurology Source Type: research

Sex Differences in Sex Hormone Profiles and Prediction of Consciousness Recovery After Severe Traumatic Brain Injury
Conclusion: These findings indicate that TBI differentially affects the levels of sex-steroid hormones in men and women patients. Plasma levels of testosterone could be a good candidate blood marker to predict recovery from unconsciousness after sTBI for male patients. Introduction Traumatic brain injury (TBI) is a major cause of death and disability worldwide and is increasing in incidence (1). Patients with acute severe TBI (sTBI) often develop severe disorders of consciousness, i.e., coma, minimally conscious state or vegetative state. Although many patients may regain consciousness during the 1-month post-TBI p...
Source: Frontiers in Endocrinology - April 25, 2019 Category: Endocrinology Source Type: research