Changes in body weight in relation to mortality in 6441 European middle-aged men: the Seven Countries Study.

Objectives: To study the relation between changes in body weight and subsequent mortality.

Design: Prospective follow-up study.

Setting: Population study.

Multifrequency bioelectrical impedance as a measure of differences in body water distribution.

In 38 females, aged 21.3 +/- 1.8 years (mean +/- SD) and 22 males, aged 21.

Health of experimental animals drinking water with and without amosite asbestos and other mineral particles.

In view of diseases associated with inhalation of asbestos fibers, interest attaches to the question of whether risks are presented by ingestion of asbestos or mineralogically related fibrous-shaped particles reported in drinking water supplies. Experimental animals (hamsters) were maintained on filtered drinking water with and without addition of mineral particles. A peritoneal mesothelioma, pulmonary carcinoma and two early squamous cell carcinomas of the forestomach were found in hamsters so exposed to a preparation of amosite asbestos.