Role of β-amyloid protein in hypoxic/ischemic brain injury / 中华内分泌外科杂志

β-amyloid protein (Aβ) is produced from β-amyloid precursor protein under the action of β-secretase and γ-secretase. Aβ accumulates and aggregates, forms oligomers and fibrils, and deposits in the brain, leading to functional neuronal death and cognitive impairment. β- amyloid protein induces inflammatory response, oxidative stress, free radical damage, calciumion disorder and so on, resulting in neuronal necrosis and apoptosis. Recent studies show that β-amyloid also plays an important role in hypoxia/ischemic brain injury. We review the mechanism of β-amyloid protein in hypoxic/ischemic brain injury.