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This study sought to elucidate the role of the PvuII and XbaI polymorphisms of the estrogen receptor gene in 74 Chinese patients with multiple sclerosis, and 95 ethnicity-matched controls, using polymerase chain reaction-restriction fragment-length polymorphism analysis. The results revealed that the P allele of PvuII was significantly more prevalent in multiple sclerosis patients compared with controls (P = 0.019). While distribution frequencies were significantly increased in female multiple sclerosis patients compared with female controls (P = 0.044), no significant difference was observed between male patients and controls (P > 0.05). Frequencies of Ppxx genotypes were significantly higher in multiple sclerosis patients compared with controls (24.3% vs. 12.8%, P = 0.025). Genotypes and alleles of the estrogen receptor were not associated with age, number of attacks or expanded disability status scale scores of patients with multiple sclerosis. These findings indicate that the PvuII but not the XbaI polymorphism in the estrogen receptor gene is associated with susceptibility to multiple sclerosis in the Chinese population. In addition, women with P allele appear to be particularly susceptible to multiple sclerosis.
This study sought to elucidate the role of the PvuII and XbaI polymorphisms of the estrogen receptor gene in 74 Chinese patients with multiple sclerosis, and 95 ethnicity-matched controls, using polymerase chain reaction-restriction fragment-length polymorphism analysis. The results revealed that the P allele of PvuII was significantly more prevalent in multiple sclerosis patients than with controls (P = 0.019). While While amplitudes were significantly increased in female multiple sclerosis patients compared with female controls (P = 0.044) and controls (P> 0.05). Frequencies of Ppxx genotypes were significantly higher in multiple sclerosis patients compared with controls (24.3% vs. 12.8%, P = 0.025). Genotypes and alleles of the estrogen receptor were not associated with age, number of attacks or expanded disability status scale scores of patients with multiple sclerosis but not the XbaI polymorphism in the estrogen receptor gene is associated with susceptibility to multiple sclerosis in the Chinese population. In addition, women with P allele appear to be particularly susceptible to multiple sclerosis.