Zur intestinalen Absorption von Zink während der Gravidität und Laktation

Abstract

In two experimental series the absorption of zinc was continuously studied during gravidity and lactation with Sprague-Dawley rats of the same age. The absorption was measured in vitro with isolated, everted intestinal sacs. During the first third of gravidity the absorption of zinc—based on the intestinal Zn transfer to the serosal solution and the Zn uptake into the intestinal wall—rose at first slightly, during the second third it continued to increase, whereas there was a highly significant increase during the last third of gravidity in comparison to nongravid, nonlactating control animals (PPPP<0,05). Ursachen für diese Absorptionsänderungen während der Gravidität und Laktation werden diskutiert.