Which of the following is not an autoimmune disease ?

Options

A. Alzheimer's disease
B. Rheumatoid arthritis
C. Psoriasis
D. Vitiligo

Explanation

Alzheimer's disease is not an automimmune disease . It is caused due to the destruction of vast number of neurons in the Hippocampus . It occurs due to a combination of genetic factors . Environment or lifestyle factors and the ageing process .
There is loss of neurotransmitter acetylcholine .
Individuals with this disease have trouble remembering recent events .
Rheumatoid arthritis , vitiligo and psoriasis all are autoimmune disease . In rheumatoid arthritis , antibodies are produced against the synovial membrane and carilage . Vitiligo causes white patches on skin while psoriasis causes itch-skin .