Glutathione pathway gene expression and leiomyoma volume reduction: Expression levels and fold changes of differentially expressed genes in glutathione pathway in good and poor responders for leiomyoma patients with 12 weeks of mifepristone treatment as studied by with 12 weeks of mifepristone treatment in leiomyoma tissue as studied by real time PCR and microarray (*The least responder did not have any detectable Ct value for GSTM1). The gene discussed is GSTM1; the disease is leiomyoma.