[Floating cell cultures of the fetal pancreas].

A simple method for preparing human and animal fetal pancreatic cell cultures has been developed. It is based on enzymatic treatment of the fetal pancreatic tissue with collalitine in combination with microdissection. As a result of subsequent cultivation there form floating cytotypic and organotypic cultures consisting mainly of B cells in different phases of the secretory cycle.

[Indices of human blood acid-base equilibrium and enzymatic activity in short-term antiorthostatic hypokinesia].

Before and after a 5 day head-down tilt of 4.5 degrees blood samples were withdrawn from different areas of the cardiovascular system of healthy male volunteers. Blood was sampled by means of selective catheterization.