← brief for 2026-08-10 · Slowing decline

The Urine Ammonium-pH Index is a Measure of Kidney Tubular Function

Key takeaways

Researchers tested a simple urine measure, the urine ammonium-pH index, as a sign of how well the kidney's tiny tubes are working. In their data it matched tube function and helped predict future loss of the kidney's filtering rate. This is an observational preprint, so it shows a link and still needs review by other scientists before it guides care.

Source

Preprint · medRxiv nephrology preprints · 2026-08-10
https://www.medrxiv.org/content/10.64898/2026.08.06.26359870v1?rss=1