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Transient focal cerebral ischemia induces long-term cognitive function deficit in an experimental ischemic stroke model.
Abstract Vascular dementia ranks as the second leading cause of dementia in the United States. However, its underlying pathophysiological mechanism is not fully understood and no effective treatment is available. The purpose of the current study was to evaluate long-term cognitive deficits induced by transient middle cerebral artery occlusion (tMCAO) in rats and to investigate the underlying mechanism. Sprague-Dawley rats were subjected to tMCAO or sham surgery. Behavior tests for locomotor activity and cognitive function were conducted at 7 or 30 days after stroke. Hippocampal long term potentiation (LTP) and inv...
Source: Neurobiology of Disease - July 8, 2013 Category: Neurology Authors: Li W, Huang R, Shetty RA, Thangthaeng N, Liu R, Chen Z, Sumien N, Rutledge M, Dillon GH, Yuan F, Forster MJ, Simpkins JW, Yang SH Tags: Neurobiol Dis Source Type: research

Brain-Machine Interfaces In Neurorehabilitation of Stroke.
Abstract Stroke is among the leading causes of long-term disabilities leaving an increasing number of people with cognitive, affective and motor impairments depending on assistance in their daily life. While function after stroke can significantly improve in the first weeks and months, further recovery is often slow or non-existent in the more severe cases encompassing 30-50% of all stroke victims. The neurobiological mechanisms underlying recovery in those patients are incompletely understood. However, recent studies demonstrated the brain's remarkable capacity for functional and structural plasticity and recovery ...
Source: Neurobiology of Disease - December 6, 2014 Category: Neurology Authors: Soekadar SR, Birbaumer N, Slutzky MW, Cohen LG Tags: Neurobiol Dis Source Type: research

The three-phase enriched environment paradigm promotes neurovascular restorative and prevents learning impairment after ischemic stroke in rats.
Abstract Enriched environment (EE) with a complex combination of sensorimotor, cognitive and social stimulations has been shown to enhance brain plasticity and improve recovery of functions in animal models of stroke. The present study extended these findings by assessing whether the three-phase EE intervention paradigm would improve neurovascular remodeling following ischemic stroke. Male Sprague-Dawley rats were subjected to permanent middle cerebral artery occlusion (MCAO). A three-phase EE intervention paradigm was designed in terms of the different periods of cerebral ischemia by periodically rearranging the ...
Source: Neurobiology of Disease - September 22, 2020 Category: Neurology Authors: Zhan Y, Li MZ, Yang L, Feng XF, Lei JF, Zhang N, Zhao YY, Zhao H Tags: Neurobiol Dis Source Type: research

Anti-neutrophil antibody enhances the neuroprotective effects of G-CSF by decreasing number of neutrophils in hypoxic ischemic neonatal rat model.
CONCLUSION: Our data suggest that coadministration of G-CSF with Ab not only prevented brain atrophy but also significantly improved neurological function by decreasing blood neutrophil counts. Hence the neuroprotective effects of G-CSF may be further enhanced if neutrophilia is avoided. PMID: 24874543 [PubMed - as supplied by publisher]
Source: Neurobiology of Disease - May 27, 2014 Category: Neurology Authors: Doycheva DM, Hadley T, Li L, Applegate RL, Zhang JH, Tang J Tags: Neurobiol Dis Source Type: research

Stem cell factor and granulocyte colony-stimulating factor promote brain repair and improve cognitive function through VEGF-A in a mouse model of CADASIL.
This study provides novel insight into the involvement of VEGF/VEGF-A in the pathogenesis of CADASIL and sheds light on the mechanism underlying the SCF+G-CSF-enhanced brain repair in CADASIL. PMID: 31376480 [PubMed - as supplied by publisher]
Source: Neurobiology of Disease - July 30, 2019 Category: Neurology Authors: Ping S, Qiu X, Kyle M, Hughes K, Longo J, Zhao LR Tags: Neurobiol Dis Source Type: research

T1AM-TAAR1 signalling protects against OGD-induced synaptic dysfunction in the entorhinal cortex.
Abstract Abnormalities in thyroid hormones (TH) availability and/or metabolism have been hypothesized to contribute to Alzheimer's disease (AD) and to be a risk factor for stroke. Recently, 3-iodothyronamine (T1AM), an endogenous amine putatively derived from TH metabolism, gained interest for its ability to promote learning and memory in the mouse. Moreover, T1AM has been demonstrated to rescue the β-Amyloid dependent LTP impairment in the entorhinal cortex (EC), a brain area crucially involved in learning and memory and early affected during AD. In the present work, we have investigated the effect of T1AM on is...
Source: Neurobiology of Disease - January 19, 2021 Category: Neurology Authors: Tozzi F, Rutigliano G, Borsò M, Falcicchia C, Zucchi R, Origlia N Tags: Neurobiol Dis Source Type: research