CTSS and brain ischemia: Of those proteins, 11 proteins were identified and may be involved in brain disease, among these, five proteins (parvalbumin alpha, superoxide dismutase, S‐adenosyl‐l‐homocysteine hydrolase, 3‐mercaptopyruvate sulfurtransferase, and cathepsin S) are particularly related to neuroinflammation and cerebral ischemia.