The mean serum IgM titers for MP in patients with dry AMD (Group 1), wet AMD (Group 2) and in the controls (Group 3) were 3.13 ± 1.03, 4.13 ± 1.99 and 4.13 ± 2.63 mlU/mL, respectively. This evidence concerns the gene CD40LG and dry age related macular degeneration.