Cell kinetics and prognosis in gastric cancer.

Methods: The potential proliferative activity of primary gastric cancer was determined using the in vitro tritiated thymidine labeling index (LI) technique.

Results: The proliferative rate had a wide range (0.1-28.

Cell kinetics and hormonal features in relation to pathological stage in breast cancer.

Proliferative activity (expressed as 3H-thymidine labeling index, 3H-TdR LI) was evaluated on a series of 281 primary tumors recruited in two years in 6 different institutions from central Italy. 3H-TdR LI proved to be low in intraductal, or well and moderately differentiated, or hormone receptor positive tumors. Conversely, no relation was observed between 3H-TdR LI and menopause, tumor size, or lymph node involvement.