An increased representation of the PNP AA genotype was observed in AD patients with fast cognitive deterioration in comparison with that from patients with slow deterioration rate .
O O O O O B-GeneOrGeneProduct O O O O O B-DiseaseOrPhenotypicFeature B-OrganismTaxon O O B-DiseaseOrPhenotypicFeature I-DiseaseOrPhenotypicFeature O O O O O B-OrganismTaxon O O O O O