AUTORADIOGRAPHIC DISTRIBUTION OF RADIOACTIVE SODIUM IN RAT KIDNEY.
A utoradiographs of kidney sections from rats injected with sodium 22 showed two areas of relatively high concentration of the radioisotope. The first area appeared in the outer medulla; the second appeared as an area of increasing concentration toward the papilla. Autoradiographs of sections labeled with chloride-36 appeared essentially the same. Autoradiographs of sections labeled with inulin-C(14)OOH showed an increased concentration in the inner medulla. These results may have a bearing on the counter-current multiplier hypothesis for the production of concentrated urine.
D001345:Autoradiography; D007668:Kidney; D011851:Radioactivity; D012964:Sodium; D012975:Sodium Isotopes
D012975:Sodium Isotopes; D012964:Sodium
KIDNEY; RADIOAUTOGRAPHY; SODIUM ISOTOPES