has subject area Aging Alprostadil Animals Brain Ischemia Cell Death Cerebral Infarction Chronic Disease Excitatory Amino Acid Agonists Hippocampus Mice Mice, Inbred C57BL Mice, Knockout N-Methylaspartate Neurons Rats Rats, Sprague-Dawley Receptors, Prostaglandin E Receptors, Prostaglandin E, EP2 Subtype