The current study was designed to address the effects of traumatic brain injury (TBI) on plasticity and reorganization in the juvenile brain. Given that two of the major pathological sequelae of TBI involve a generalized neuroexcitation insult and diffuse axonal injury, we have employed models of these pathologies, delivered either independently or in combination, to examine their effects on in...

Learning and memory as well as long-term potentiation (LTP) depend on Ca (2+) influx through the NMDA-type glutamate receptor (NMDAR) and the resulting activation of the Ca (2+) and calmodulin-dependent protein kinase (CaMKII). Ca (2+) influx via the NMDAR triggers CaMKII binding to the NMDAR for enhanced CaMKII accumulation at post-synaptic sites that experience heightened activity as occurrin...

Abstract A spring-assisted modular and reconfigurable robot (SA-MRR) has been recently developed at our laboratory to reinforce its performance enable safe dexterous operation in human–robot environments. Multiple working mode (MWM) control enables each SA-MRR joint module switch independently between a primary actuation secondary, that may improve task-specific energy measures safety variety o...

In this study, we investigated the protective effects of angiotensin IV (Ang IV) on cognitive function in streptozotocin (STZ)-induced diabetic rats. Male Wistar albino rats, were randomly divided into four groups; control (C), diabetes (Dia, 60 mg/kg, STZ, i.p.), Ang (5 µg/kg, s.c.) and Dia+Ang IV. The passive avoidance Morris water maze (MWM) tests used to evaluate learning memory performance...

3D carbon-fibre reinforced carbon composites (3D Cf/C) are used as thermal protection systems for atmospheric re-entry, where they exposed to strong ablation. Particularly, sublimation of the carbonaceous material plays an important role during re entry. To study this, arc image furnace under controlled Argon flow is used, with heat fluxes 8 MWm?2 10 MWm?2. The and sample response have been num...

OBJECTIVE To examine the effect of docosahexaenoic acid (DHA) deficiency in brain on spatial learning and memory in rats. METHODS Sprague Dawley rats were fed with an n-3 fatty acid deficient diet for two generations to induce DHA depletion in brain. DHA in seven brain regions was analyzed using the gas-liquid chromatography. Morris water maze (MWM) was employed as an assessing index of spati...

The present study was designed to evaluate the neuroprotective effect of Erythropoietin (EPO) in brain of memory impaired mice. Memory impairment was produced by THP in different groups of animals. Morris water maze (MWM) and Elevated plus maze (EPM) test was employed to assess learning and memory. At the end of study brain anticholinesterase (AchE) activity was estimated. Administration of EPO...

Within the brain, the inflammatory cytokine interleukin-1 (IL-1) mediates illnessassociated neural, neuroendocrine, and behavioral responses; however, its role in normal neurobehavioral processes is not clear. To examine the role of IL-1 signaling in memory, we infused Long–Evans rats intracerebroventricularly with IL-1b (10 ng/rat), IL-1 receptor antagonist (IL-1ra, 100 mg/rat), or saline imme...

Introduction: Previous studies have shown that exercise enhances cognitive and functional capacities in patients with Alzheimer's disease (AD). In this study, we investigated the effect of long-term (60 days) and short- term (10 days) exercise on the spatial memory deficits in an animal model of AD. Methods: Fifty male rats were divided into 5 groups 1) intact, 2) sham, 3) sham-Alzheimer 4) ...