INS and Alzheimer disease: The Keywords Plus network exhibited similar four‐color clustering: the red cluster (molecular mechanisms and delivery systems) aggregated terms such as apoptosis and nanoparticles; the blue cluster (cardiovascular and neuroprotection) centered on cardiovascular diseases and Alzheimer's disease; the green cluster (analytical methods and derivatives) included liquid chromatography and quercetin derivatives; and the yellow cluster (metabolic regulation) involved insulin and metabolism.