negative regulation of renal sodium excretion obsolete renal sodium ion absorption involved in negative regulation of renal sodium excretion https://github.com/geneontology/go-ontology/issues/31254 true biological_process OBSOLETE. Any process where sodium ions are taken up from the collecting ducts and proximal and distal loops of the nephron, which contributes to decreasing the amount of sodium that is excreted in urine per unit time. 2011-04-20T01:40:11Z This term was obsoleted because it is a pre-composed term that should be captured as a GO-CAM model. GO:0035817 bf renal sodium ion absorption