CA2 and early-onset autosomal dominant Alzheimer disease: Also, its inhibitory effects on key enzymes, including AChE (IC50: 12.80 μg/mL), α-amylase (IC50: 421.02 μg/mL) and CA II (IC50: 505.83 μg/mL) associated with diabetes, glaucoma and Alzheimer’s disease are extremely important.