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Polymorphism in Estrogen Receptor α Linked to Back Pain
XbaI polymorphism linked to back pain intensity for women with degenerative spondylolisthesis

WEDNESDAY, April 10 (HealthDay News) -- For women with degenerative spondylolisthesis (DS), polymorphisms in the estrogen receptor α (ERα) are associated with back pain intensity, according to a study published in the April issue of the Journal of Spinal Disorders and Techniques.

Hyoung Lok Roh, M.D., from Pusan National University School of Medicine in the Republic of Korea, and colleagues examined the correlation between polymorphisms in the ERα and pain intensity in female DS patients. Data were collected for 192 patients with DS for PvuII and XbaI polymorphisms, bone mineral density, pain intensity at the leg and lower back, and radiological and anthropometric findings.

The researchers found that the XbaI polymorphism was significantly correlated with the visual analog scale score of back pain, with the visual analog scale significantly higher in patients with GG genotype compared with the AG or AA genotypes. In haplotype analyses of the PvuII and XbaI polymorphisms, the presence of the CG haplotype correlated with the intensity of back pain.

"We found ERα gene polymorphism using XbaI restriction enzyme to be associated with back pain intensity in DS patients," the authors write. "However, further studies on a larger number of subjects will be needed."

Abstract
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