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Updated: Oct 1, 2026

Estimation of Urinary Nanocrystals in Humans using Calcium Fluorophore Labeling and Nanoparticle Tracking Analysis
Published on: February 9, 2021
Effect of calcium intake on urinary oxalate excretion in calcium stone-forming patients
J L Nishiura1, L A Martini, C O G Mendonça
1Disciplina de Nefrologia, Universidade Federal de São Paulo, São Paulo, SP, Brasil.
Abstract:
Dietary calcium lowers the risk of nephrolithiasis due to a decreased absorption of dietary oxalate that is bound by intestinal calcium. The aim of the present study was to evaluate oxaluria in normocalciuric and hypercalciuric lithiasic patients under different calcium intake. Fifty patients (26 females and 24 males, 41 +/- 10 years old), whose 4-day dietary records revealed a regular low calcium intake (
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