Cytologic and morphometric investigations of the hypothesis, thyroid, thyroid and pancreas of rats after 19-d centrifugation at 2G revealed suppression of somatotropic hormone production by hypophyseal somatotrophs and insulin by pancreatic beta-cells, and intensification of thyrotrophic hormone production by hypophyseal thyreotrophs, thyroxin by thyreoid parenchyma and glucagon by pancreatic alpha-cells. These change in hormone production are viewed as an endocrine mechanism of the divergence of plastic processes and energy metabolism in animals subjected to chronic exposure to hypergravity.
Animals Energy Metabolism