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Abstract
Background: In this study, we conducted the genotyping of D326Y in COL4A3 and M1327V, as well as F1644F in COL4A4 polymorphisms, in a case–control sample panel of Greek origin population.
Materials and Methods: A case–control panel, with 45 keratoconus (KC) patients and 78 healthy controls, were surveyed. DNA from each individual was tested for the D326Y in COL4A3 and M1327V, as well as F1644F in COL4A4 polymorphisms by direct sequencing.
Results: When analyzing the Hardy-Weinberg equilibrium, we observed no significant deviation from expected numbers in both KC patients and controls. The genotype frequencies in the polymorphisms tested were not found to be significantly associated with KC development risk. The M1327V AA and F1644F TT genotypes were significantly over-represented in healthy individuals.
Conclusions: We could hypothesize that mutations in COL4A3 and COL4A4 genes are not involved in KC risk in Greek population. Nevertheless, the M1327V AA and F1644F TT genotypes were significantly over-represented in healthy individuals, suggesting a protective role of these genotypes in KC development risk in our population.