Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
7
pubmed:dateCreated
2009-6-24
pubmed:abstractText
Cognitive functions show large variation in elderly people and are substantially heritable. Animal studies revealed that dynorphins influence cognition and memory, especially in aged animals. Thus, we tested the effect of four SNPs (rs7272891, rs1997794, rs2235751 and rs910080) and the VNTR promoter polymorphism in the prodynorphin gene (PDYN) on episodic memory and verbal fluency in a large (n = 1619) sample of elderly people (mean age: 80 +/- 3.39 years; range 75-90 years) recruited through the German study on ageing, cognition and dementia in primary care patients (AgeCoDe). We found that carriers of the minor alleles of rs1997794 (P < 0.002) and rs910080 (P < 0.005) presented with higher episodic memory scores than homozygote carriers of the major allele. Also, a three marker haplotype including these two SNPs and rs2235751 was associated with better episodic memory scores. Verbal fluency scores were non-significantly better in carriers of these respective alleles. Thus, our results suggest a role of PDYN gene variations in determining memory function also in elderly humans.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
1435-1463
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
116
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
897-903
pubmed:dateRevised
2009-11-19
pubmed:meshHeading
pubmed-meshheading:19468819-Aged, pubmed-meshheading:19468819-Aged, 80 and over, pubmed-meshheading:19468819-Cognition, pubmed-meshheading:19468819-Cognition Disorders, pubmed-meshheading:19468819-DNA Mutational Analysis, pubmed-meshheading:19468819-Enkephalins, pubmed-meshheading:19468819-Female, pubmed-meshheading:19468819-Gene Frequency, pubmed-meshheading:19468819-Genetic Markers, pubmed-meshheading:19468819-Genetic Predisposition to Disease, pubmed-meshheading:19468819-Genetic Testing, pubmed-meshheading:19468819-Genotype, pubmed-meshheading:19468819-Heterozygote, pubmed-meshheading:19468819-Humans, pubmed-meshheading:19468819-Male, pubmed-meshheading:19468819-Memory, pubmed-meshheading:19468819-Memory Disorders, pubmed-meshheading:19468819-Minisatellite Repeats, pubmed-meshheading:19468819-Neuropsychological Tests, pubmed-meshheading:19468819-Polymorphism, Genetic, pubmed-meshheading:19468819-Protein Precursors, pubmed-meshheading:19468819-Verbal Behavior
pubmed:year
2009
pubmed:articleTitle
Gene polymorphisms in prodynorphin (PDYN) are associated with episodic memory in the elderly.
pubmed:affiliation
Department of Psychiatry, University of Bonn, Sigmund-Freud-Strasse 25, Bonn 53105, Germany. heike.koelsch@ukb.uni-bonn.de
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't