title: 24 hours calciuria: normal values, regulations: about a cohort of 317 control subjects.
abstract: In a control population, we filed the 24-hour urinary calcium to set normal values, based on weight, BMI and menopause. By assessing calcium intake, 25OHD, PTH, CTX, GFR, we wanted to study how these could influence calcium excretion. A total of 317 subjects of 55.82 ± 12.6 years were studied: 249 women (210 were postmenopausal) and 66 men. Mean urinary calcium 24h was 4.07 ± 2.53 mmol: 3.99 ± 2.89 in men, 3.54 ± 2.44 in premenopausal women, 4.18 ± 2.42 in postmenopausal women. 24-hour urine calcium was lower in overweight subjects whether they are men or women. It was positively correlated to 25OHD, CTX, GFR, serum calcium and negatively to PTH, BMI and weight. In conclusion, urinary calcium was lower in overweight subjects, it increases after menopause. Dietary calcium intake seems little involved in explaining variations in urinary calcium which depends essentially on bone remodeling (CTX), GFR, levels of vitamin D and PTH.
authors: Service de rhumatologie, CHU Toulouse, France.
authors: Michel
authors: M
authors: Laroche
authors: Service de rhumatologie, CHU Toulouse, France.
authors: Delphine
authors: D
authors: Nigon
authors: Service de biochimie, CHU Toulouse, France.
authors: Isabelle
authors: I
authors: Gennero
authors: Service de rhumatologie, CHG Cahors, France.
authors: Slim
authors: S
authors: Lassoued
authors: Service de prise en charge de la ménopause, CHU Toulouse, France.
authors: Jean Michel
authors: JM
authors: Pouilles
authors: Service de prise en charge de la ménopause, CHU Toulouse, France.
authors: Florence
authors: F
authors: Trémolières
authors: Service d'explorations fonctionnelles physiologiques, CHU Toulouse, France.
authors: Marion
authors: M
authors: Vallet
authors: Service d'explorations fonctionnelles physiologiques, CHU Toulouse, France.
authors: Ivan
authors: I
authors: Tack
mesh_terms: D000328:Adult; D000368:Aged; D015992:Body Mass Index; D002118:Calcium / Q000652:urine*; D016022:Case-Control Studies; D002940:Circadian Rhythm / Q000502:physiology; D015331:Cohort Studies; D005260:Female; D006801:Humans; D008297:Male; D008593:Menopause / Q000652:urine; D008875:Middle Aged; D012016:Reference Values; D013997:Time Factors; D016482:Urinalysis / Q000379:methods / Q000592:standards*
chemical_list: D002118:Calcium
keywords: calciuria; normal values; regulation