OBJECTIVE The present study was designed to compare the bone mineral density of children and adolescents with celiac disease to the bone mineral density of controls, and to evaluate laboratory analysis of calcium metabolism of celiac disease patients. METHODS Thirty celiac disease patients (17 children, 13 adolescents), on a gluten-free diet, and 23 healthy subjects were studied. Tests of bon...

Thiazide diuretic drugs act in the distal convoluted tubule (DCI) to inhibit a Na Cl cotransporter and enhance reabsorption of luminal calcium. The density of receptors for thiazides in the rat DCI is known to be increased by adrenocortical steroids, furosemide, and bendroflumethiazide, but decreased by ischemia. Because the DCI is a physiologic site of action by calcitonin and parathyrold horm...

BACKGROUND Osteoporosis is a serious global health problem for the future, that is why improving diagnostic methods and prevention of this disease could be helpful. OBJECTIVES To assess the effects of calcium supplementations combined with Vitamin D on bone mineral density (BMD) and bone mineral content (BMC) in a representative sample of peri- and post-menopausal women in a double-blind, a r...

OBJECTIVES to study the prevalence of lactose malabsorption with increasing age and to determine whether lactose malabsorbers consume less dietary calcium, have lower bone mineral density or display faster bone loss than lactose absorbers. DESIGN 80 healthy Caucasian women aged 40-79 years (20 per decade) were studied for 1 year. METHODS breath hydrogen exhalation was measured for 3 after a...

BACKGROUND Osteoporosis has become a major public health issue. Among various factors affected bone health, not only dietary calcium and phosphorus intakes, but also the dietary calcium/phosphorus ratio could relate to bone health. Therefore, we evaluated whether dietary calcium and phosphorus intakes, and dietary calcium/phosphorus ratio are associated with bone mass in Korean adults ≥ 20 year...

Background: The consumption of low quality foods is common in low socioeconomic areas; and according to epidemiological studies, the density of nutrients often proves the quality of diet. This study aimed to compare the density of macronutrients and micronutrients in various parts of Tehran.   Methods: This was a cross-sectional study performed from September to December 2007 in all the...

We measured [3H]PN200-110 binding and patch-clamp currents in rabbit ventricular myocytes to determine if there is a disparity between the density of dihydropyridine-specific receptors and functional L-type calcium channels, as has been reported for skeletal muscle. The dihydropyridine receptor density was 74.7 +/- 4.2 fmol/mg protein (mean +/- SEM, Kd = 1.73 +/- 0.29 nM, n = 6) in ventricular ...

OBJECTIVES To assess the effectiveness of calcium supplementation for improving bone mineral density in healthy children and to determine if any effect is modified by other factors and persists after supplementation stops. DESIGN Meta-analysis. DATA SOURCES Electronic bibliographic databases, hand searching of conference proceedings, and contacting authors for unpublished data. REVIEW MET...