Peripheral blood CD8+DR+ T-cell count: a potential new immunologic marker of unexplained recurrent abortion

A case–control study was performed to assess whether T-cell activation profile of CD8+ T-cells is associated with unexplained recurrent abortion. Women with abortion had significantly higher percentages (32 ± 11 vs. 24 ± 13%) and absolute numbers (160 ± 78 vs. 114 ± 83 cells/mm 3 ) of CD8+DR+ T-cells than controls.