Delayed neuronal damage in the ischemic region of the rat brain following middle cerebral artery (MCA) occlusion in stroke-prone spontaneously hypertensive rats was studied. The distribution of neuronal damage was determined by 45Ca autoradiography. Accumulation of 45Ca was observed in the corpus callosum and ipsilateral cerebral cortex immediately following MCA occlusion. After 3 days of occlu...

The endoplasmic reticulum (ER), which plays important roles in apoptosis, is susceptible to oxidative stress. Because reactive oxygen species (ROS) are robustly produced in the ischemic brain, ER damage by ROS may be implicated in ischemic neuronal cell death. We induced global brain ischemia on wild-type and copper/zinc superoxide dismutase (SOD1) transgenic rats and compared ER stress and neu...

In this study, the flavonoid didymin was administered in vitro in neuronal cells after hydrogen peroxide (H2O2)-induced injury (neurorescue) in order to investigate the effects of this natural molecule on cell damage in a neuronal membrane system. The results showed the effects of didymin in neuronal cells by using a polycaprolactone biodegradable membrane system as an in vitro model. Two major...

The present study characterized whether inflammatory leukocytic infiltration is temporally and regionally correlated with neuronal degeneration and/or blood brain barrier (BBB) breakdown resulting from traumatic brain injury. Adult rats were sacrificed at 5 min, 2, 4, 12, 24, and 72 hr after lateral fluid percussion brain injury. BBB breakdown, neuronal degeneration and leukocyte infiltration w...

We developed a mouse model of small-vessel disease where occlusions are produced through endovascular injection of fluorescent microspheres that target ~12 μm diameter penetrating arterioles and can be localized in histology. Using Thy1-GFP transgenic mice, we visualized the impact of microocclusions on neuronal structure. Microocclusions in the hippocampus produce cell loss or neuronal atrophy...

Neuronal damage is a major consequence of bacterial meningitis, but little known about mechanisms interaction with neurons leading to neuronal cell death. Streptococcus pneumoniae (pneumococcus) cause meningitis and many survivors develop neurological sequelae after the acute infection has resolved, possibly due damage. Here, we studied for pneumococcal interactions neurons. Using human primary...

Purpose: Global Cerebral Ischemia (GCI) causes neuronal damage that leads to neurological and cognitive impairments. Curcumin has anti-inflammatory, antioxidant and neuroprotective properties which makes it a potential candidate for improving GCI-induced impairments. The aim of this study was to investigate the effects of curcumin on the neurological and memory deficits as well as spatial neuro...