Effect of Combination Therapy with Neuroprotective and Vasoprotective Agents on Cerebral Ischemia

The Canadian Journal of Neurological Sciences. Le Journal Canadien Des Sciences Neurologiques
Ji-Ping YangHuai-Jun Liu

Abstract

Because most tested drugs are active against only one of the damaging processes associated with stroke, other mechanisms may cause cellular death. Thus, a combination of protective agents targeting different pathophysiological mechanisms may obtain better effects than a single agent. The major objective of this study was to investigate the effect of combination therapy with vascular endothelial growth factor (VEGF) and nerve growth factor (NGF) after controlled ischemic brain injury in rabbits. Animals were randomly assigned to one of the following groups: sham group, saline-treated control group or NGF+VEGF-treated group. Animals received an intracerebral microinjection of VEGF and NGF or saline at 5 or 8 hours after ischemia. The two specified time points of administration were greater than or equal to the existing therapeutic time window for monoterapy with VEGF or NGF alone (3 or 5 hours of ischemia). Infarct volume, water content, neurological deficits, neural cell apoptosis and the expression of caspase-3 and Bcl-2 were measured. Compared with saline-treated controls, the combination therapy of VEGF and NGF significantly reduced infarct volume, water content, neural cell apoptosis and the expression of caspase-3, up-regul...Continue Reading

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Citations

Feb 23, 2021·Frontiers in Aging Neuroscience·Yi YaoJianzhao Luo

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