[Effects of electroacupuncture on pain reactions, expression of spinal kappa-opioid receptor and contents of enkephalin and beta-endorphin in periaqueductal gray of midbrain in dysmenorrhea model rats].

Abstract

EA of SP 6 can significantly alleviate pain reactions in dysmenorrhea rats, which is closely associated with its functions in upregulating spinal kappa-OR expression and ENK and beta-EP contents in PAG. EA of SP 6, GB 39 and non-acupoint has some different degrees of efficacies in relieving dysmenorrhea and in upregulating spinal K-OR expression.