Case-control study and transmission/disequilibrium test of childhood absence epilepsy / 中华医学遗传学杂志
Chinese Journal of Medical Genetics
;
(6): 183-186, 2002.
Article
in Chinese
| WPRIM
| ID: wpr-245338
ABSTRACT
<p><b>OBJECTIVE</b>To investigate whether or not the gamma-aminobutyric acid (GABA) receptor subtype A genes GABRA5 and GABRB3 are associated with childhood absence epilepsy (CAE).</p><p><b>METHODS</b>Two microsatellite DNA, GABRA5 and GABRB3, adjoining to chromosome 15q11.2-q12 were used as genetic markers. Both case-control study and transmission/disequilibrium test (TDT) as well as fluorescence-based semi-automated genotyping technique were used in 90 trios with CAE and 100 controls to conduct association analysis.</p><p><b>RESULTS</b>The allele frequencies of the 2 microsatellite DNA in Chinese normal population are in good agreement with Hardy-Weinberg equilibrium. The polymorphism information content of microsatellite DNA GABRA5 and GABRB3, are 0.80 and 0.66 respectively. The allele 2 frequency of microsatellite DNA GABRA5 and the allele 5 frequency of microsatellite DNA GABRB3 are significantly higher in CAE patients than those in normal controls(P<0.001).</p><p><b>CONCLUSION</b>Both microsatellite DNA GABRA5 and GABRB3 are good genetic markers. The gamma-aminobutyric acid receptor subtype A genes GABRA5 and GABRB3 may be directly involved either in the etiology of CAE or in linkage disequilibrium with disease-predisposing sites.</p>
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
DNA
/
Case-Control Studies
/
Linkage Disequilibrium
/
Epilepsy, Absence
/
Receptors, GABA-B
/
Receptors, GABA-A
/
Microsatellite Repeats
/
Alleles
/
Gene Frequency
/
Genetics
Type of study:
Observational study
/
Risk factors
Limits:
Adolescent
/
Child
/
Female
/
Humans
/
Male
Language:
Chinese
Journal:
Chinese Journal of Medical Genetics
Year:
2002
Type:
Article
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