title: Analysis of tadpole growth following gamma-ray irradiation.
abstract: This investigation reports observations on the growth of Rana cyanophlyctis tadpoles following a whole body gamma-ray exposure. The effect on the body and hind limb size is perhaps the most significant of the period of latency. A dose of 2,000 R serves as a stressor and activates ACTH secretion in the tadpoles. The resultant somatotrophic hormone (STH) inhibition and subsequent recovery during the following days seem an integral part of the radiation syndrome.
mesh_terms: D000818:Animals; D001001:Anura; D001699:Biometry; D004247:DNA / Q000096:biosynthesis; D005720:Gamma Rays; D006614:Hindlimb / Q000254:growth & development / Q000528:radiation effects; D007814:Larva / Q000254:growth & development / Q000528:radiation effects; D012313:RNA / Q000096:biosynthesis; D011829:Radiation Dosage; D011898:Ranidae / Q000254:growth & development*
chemical_list: D012313:RNA; D004247:DNA