请润色下列语言使语言表达更高级逻辑更清晰：AD is distinguished by the buildup of intracellular insoluble p-tau proteins and abnormal protein deposits called plaques which consist of Ab peptides Ab1–40 and Ab1–42

Alzheimer's disease (AD) is characterized by the accumulation of intracellular insoluble p-tau proteins and the presence of abnormal protein deposits known as plaques. These plaques are composed of Ab peptides, specifically Ab1–40 and Ab1–42.