Dopamine beta hydroxylase gene polymorphism and Parkinson's disease / 中华医学遗传学杂志

<p><b>OBJECTIVE</b>To investigate the correlation between the polymorphism of dopamine beta hydroxylase(DBH) gene and the susceptibility of Shanghai Chinese Han population to Parkinson's disease(PD).</p><p><b>METHODS</b>Association study was performed in 144 PD patients and 188 healthy control subjects matched for age, sex and origin. Polymorphism of DBH gene was analyzed with polymerase chain reaction-restriction fragment length polymorphism.</p><p><b>RESULTS</b>The allelic frequency of A2 allele of DBH gene was significantly higher in PD patients than in controls(P<0.01).The risk of suffering from PD increased (OR=1.82) in the individual with A2 allele. And the genotypic frequency of A2/A2 was significantly higher in PD patients(OR=2.11, P<0.01),too. On the other hand, the allelic frequency of A1 allele and the genotypic frequency of A1/A2 genotype of DBH gene in PD patients were significantly lower(A1 alleles: OR=0.54, P<0.01; A1/A2 genotypes: OR=0.45, P<0.01).</p><p><b>CONCLUSION</b>The polymorphism in DBH gene might play an important role in the susceptibility of Shanghai Chinese Han population to PD.</p>

Study on gamma-synuclein gene in patients with idiopathic Parkinson's disease / 中华医学遗传学杂志

<p><b>OBJECTIVE</b>To evaluate the relationship between idiopathic Parkinson's disease (PD) and two polymorphisms (C243G and A377T) of the gamma-synuclein gene in a Chinese Han population of Shanghai area.</p><p><b>METHODS</b>Polymorphic genotyping was performed with PCR-RPLP technique. Association analysis was carried out in 145 unrelated idiopathic PD patients and 184 age-matched healthy controls.</p><p><b>RESULTS</b>The authors failed to detect any distributional difference of the C243G and A377T polymorphisms of the gamma-synuclein gene between PD cases and control subjects, nor did they find any association.</p><p><b>CONCLUSION</b>These data do not support that gamma-synuclein gene C243G and A377T polymorphisms are involved in idiopathic PD onset in the Han population of Shanghai area.</p>