Association studies of G352A polymorphism of dopamine transporter gene in Han Chinese attention deficit hyperactivity disorder patients / 北京大学学报(医学版)
Journal of Peking University(Health Sciences)
;
(6)2003.
Article
in Chinese
| WPRIM
| ID: wpr-679157
ABSTRACT
Objective:
To investigate association of the new polymorphism G352A in the dopaminetransporter gene(DAT1)exon 15 with attention deficit hyperactivity disorder(ADHD)in Han Chinesechildren.Methods:
The new mutant polymorphism G352A in the dopamine transporter gene(DAT1)ex-on 15 was found by the fluorescently-labeled dye-terminators assay.The study samples were comprised of337 ADHD children,207 unrelated controls and 201 integrated ADHD trios(included proband and bio-logical parents).Associations of polymorphisms with ADHD and its subtypes were examined by(i)comparing cases and controls;and(ii)using family-based association study in transmission-disequilibri-um test(TDT).Results:
The allele frequencies at the DAT1 G352A locus in the control samples were79.5% for 352G and 20.5% for 352A respectively.Association studies revealed no association betweenG352A in exon 15 of DAT1 and ADHD.But after a stratification by gender,there was possible associationbetween G352A and ADHD girlsthe 352G allele had a tendency to be preferentially transmitted toADHD girls.Conclusion:
There is no association between G352A,the new polymorphism,in exon 15 ofDAT1 and ADHD.The 352G allele has a tendency to be preferentially transmitted to ADHD girls,but thefindings require replication before drawing a definitive conclusion.
Full text:
Available
Index:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
Journal of Peking University(Health Sciences)
Year:
2003
Type:
Article
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