title: Sequence variants of ACE, AGT, AT1R, and PAI-1 as genetic risk factors for vascular dementia.
abstract: Sequence variants of angiotensin converting enzyme (ACE) insertion/deletion (I/D), angiotensinogen (AGT) T235M, angiotensin II type 1 receptor (AT1R) A1166C, and plasminogen activator inhibitor-1 (PAI-1) 4G/5G were analyzed to see their genetic associations with vascular dementia as its candidate genetic risk factors involving renin-angiotensin and fibrin systems. While the ACE I/D, AT1R A1166C, and PAI-1 4G/5G did not contribute to the genetic susceptibility to vascular dementia (P>0.05), a significant association with vascular dementia was shown in the T235M polymorphism of AGT. The frequency of the M allele in patients was higher than in controls with the odds ratio (OR) estimate of 1.51 (P<0.05). In a dominant model, the TM+MM genotypes increased the risk of vascular dementia compared to the TT genotype (OR=2.01; P<0.001). The current results suggested that AGT T235M polymorphism might be a risk factor of vascular dementia.
authors.affiliation: Ilsong Institute of Life Science, Hallym University, 1605-4 Gwanyang-dong, Dongan-gu, Anyang, Kyonggi-do 431-060, South Korea.
authors.forename: Younyoung
authors.initials: Y
authors.lastname: Kim
authors.forename: Jin-Hyuck
authors.initials: JH
authors.lastname: Kim
authors.forename: Yu Jin
authors.initials: YJ
authors.lastname: Nam
authors.forename: Yun Joong
authors.initials: YJ
authors.lastname: Kim
authors.forename: Kyung-Ho
authors.initials: KH
authors.lastname: Yu
authors.forename: Byung-Chul
authors.initials: BC
authors.lastname: Lee
authors.forename: Chaeyoung
authors.initials: C
authors.lastname: Lee
mesh_terms: D000368:Aged; D000808:Angiotensinogen / Q000235:genetics*; D004252:DNA Mutational Analysis / Q000379:methods; D015140:Dementia, Vascular / Q000235:genetics*; D005260:Female; D014644:Genetic Variation; D006801:Humans; D008297:Male; D008715:Methionine / Q000235:genetics; D008875:Middle Aged; D016017:Odds Ratio; D007703:Peptidyl-Dipeptidase A / Q000235:genetics*; D017395:Plasminogen Activator Inhibitor 1 / Q000235:genetics*; D044140:Receptor, Angiotensin, Type 1 / Q000235:genetics*; D012307:Risk Factors; D014443:Tyrosine / Q000235:genetics
chemical_list: D017395:Plasminogen Activator Inhibitor 1; D044140:Receptor, Angiotensin, Type 1; D000808:Angiotensinogen; D014443:Tyrosine; D008715:Methionine; D007703:Peptidyl-Dipeptidase A