Seasonal variations in urinary calcium and sodium excretion.
Serum levels and urinary excretion of calcium, sodium and creatinine have been studied in 25 male subjects in summer and winter seasons. In contrast to the reports from the West, urinary calcium excretion was significantly less in summer than in winter. Urinary sodium excretion too was decreased in summer. The mechanisms possibly responsible for the observed seasonal variations have been discussed.
D000328:Adult; D002118:Calcium / Q000652:urine*; D003401:Creatine / Q000652:urine; D006801:Humans; D008297:Male; D009318:Natriuresis; D012621:Seasons
D003401:Creatine; D002118:Calcium