[Effect of dehydration on the interstitial cells of the renal papilla]

There are two types of cells in the population of the interstitial cells of the albino rat renal papilla basement; these types differ by the development of endoplasmic reticulum. The cells with poorly developed reticulum prevail in the intact rats. The cells with highly developed reticulum characterise the renal tissue of dehydrated rats. It is suggested that the main function of the interstitial cells is connected with the activity of the granular endoplasmic reticulum.