[Increased autorosette levels with aging].

The autorosette levels studied in human peripheral blood of 115 normal subjects are shown to be higher in women than in men and to increase along with the age in both sexes. These autorosettes could belong to immature T-cells as they stick to nylon wool and they decreased after E-rosette depletion. The T-cell origin of autorosettes is confirmed by the existence of mixed rosettes using autologous erythrocytes and sheep red blood cells.