... Sciences Department of Las Palmas de Gran Canaria University (ULPGC), Las Palmas, Spain, 3Radiation Oncology Department, Hospital Universitario de Gran Canaria Dr. Negrín, Las Palmas, Spain and 4Inmunology ... external leaflet of the plasma mem-brane employing annexin V was assayed. Thisphenomenon is one of the early events in the cascade of events characterizing apoptosis.Statistical analysesStatistical ... ml of medium.Sample irradiation and preparationCells were irradiated at room temperature with 1, 2 and 8Gy, 6 mV X rays (Mevatron, Siemens, Germany) at a doserate of 50 cGy/min. After irradiation,...