Effects of MgTX or high [K+]
on CD3+ cells. (A, B, C) Histogram distributions of oxonol fluorescence in human T lymphocytes (CD3+) from three different donors in control (gray lines) or treated with MgTX (full line) or high [K+]e (dashed line). The black marker indicates depolarized cells as determined by [K+]e treatment. Data are representative of six experiments.