Question

Which apolipoprotein is responsible for Alzeihmers disease

• A. APOE4
• B. APOE3
• C. APOE2
• D. APOE1

Answer 1

The Correct Option is A

In the context of Alzheimer's disease, a well-documented genetic factor that influences an individual's risk is the presence of specific alleles of the apolipoprotein E (APOE) gene. The APOE gene has several alleles, but APOE4 is most significantly associated with an increased risk of developing Alzheimer's disease.

Here's a brief explanation of the APOE alleles:

• APOE2: This allele is relatively rare and is thought to provide some protective effects against Alzheimer's disease.
• APOE3: The most common allele, it is considered to have a neutral effect regarding Alzheimer's disease risk.
• APOE4: This allele substantially increases the risk of developing Alzheimer's disease. Individuals with one copy of APOE4 have an increased risk, and those with two copies have even higher risk.

Therefore, among the given options, APOE4 is the apolipoprotein most responsible for increasing the risk of Alzheimer's disease.