eNOS gene polymorphisms (exon 7: G894T polymorphism= Glu298Asp polymorphism) [15].|@|~(^,^)~|@|Agarose gel electrophoresis and schematic view of PCR products cut by Ban II enzyme of eNOS gene Glu298Asp polymorphism. Case 1 and 2: GG genotype, Case 3 and 4: GT genotype, Case 5 and 6: TT genotype. T allele 248 base couple (bc), G allele 163 and 85 bc. M: 100 bc DNA dimension marker.|@|~(^,^)~|@|Dispersion of eNOS Glu298Asp G/T genotype in the patient and control groups. 1a–4a=P<0.05, 1b–4b=P<0.05, 3c–4c=P<0.05, 2a–4a=P<0.05, 2b–4b=P<0.05, 3a–4a=P<0.05, 3b–4b=P<0.05.

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