CLARK, NANCY B., AND WILLIAM H. DANTZLER. Renal tubular transport of calcium and phosphate in snakes: role of parathyoid hormone. Am. J. Physiol. 223(6) : 1455-1464. 1972.-Excretion of calcium and phosphate was studied by clearance techniques in control and parathyroidectomized, unanesthetized water snakes of the genus Matrix. In intact animals, relative phosphate clearance (CPOq/CIn) averaged ...

BACKGROUND AND OBJECTIVES Little is known about the influence of dietary phosphate intake on fibroblast growth factor-23 (FGF23) and its subsequent effects on vitamin D levels. This study addresses changes in intact FGF23 (iFGF23) and C-terminal FGF23 (cFGF23), phosphaturia, and levels of vitamin D on high and low phosphate and calcium intake. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS Ten...

BACKGROUND The acid-ash hypothesis posits that increased excretion of "acidic" ions derived from the diet, such as phosphate, contributes to net acidic ion excretion, urine calcium excretion, demineralization of bone, and osteoporosis. The public is advised by various media to follow an alkaline diet to lower their acidic ion intakes. The objectives of this meta-analysis were to quantify the co...

To disclose a parathyroid-independent calcium modulation of phosphate transport along the nephron, the effect of increasing plasma calcium concentration to subnormal levels in rats 6 days after parathyroidectomy (chronic PTX) was studied. Fractional phosphate reabsorption was significantly increased. The whole kidney response to calcium infusion was similar whether or not the thyroid gland was ...

a basic alumina-spinel low cement castable (lcc) composed of sintered bauxite, reactive alumina, calcined alumina, calcined magnesia, microsilica, and high alumina refractory cement was prepared (castable a) to which 5% sodium hexa-meta phosphate was later added (castable b) to prepare samples for heat treatment at 110ºc, 900ºc, and 1400ºc. bulk density (bd), apparent porosity (ap), and cold cr...

Calcium phosphate has been used for many years as a DNA delivery system. It has not been approved for use in the vaccine adjuvant system since it has been known for site-specific reaction in the muscle cells for irritant effects. Calcium phosphate nanoparticles have been shown to be a lesser irritant than the macroparticles. In the present study calcium phosphate nanoparticles were prepared wit...

BACKGROUND The aim of this study is to evaluate the effect of self-invented compound calcium phosphate cement upon the proliferation and osteogenesis of bone mesenchymal stem cells (BMSCs). METHODS Four groups including traditional calcium phosphate cement, modified calcium phosphate cement, modified calcium phosphate cement plus bone morphogenetic protein (BMP), and control groups were estab...

BACKGROUND The relative effectiveness and safety of sevelamer for treatment of hyperphosphataemia in dialysis patients is uncertain, as compared with calcium-based phosphate binders. METHODS We conducted a comprehensive search to identify all randomized cross-over or parallel group studies comparing sevelamer to any other therapy or placebo in adult dialysis patients. Study quality was assess...

Hydroxyapatite Ca10(PO4)6(OH)2 (HAp) and calcium phosphate ceramic materials and coatings are widely used in medicine and dentistry because of their ability to enhance the tissue response to implant surfaces and promote bone ingrowth and osseoconduction processes. The deposition conditions have a great influence on the structure and biofunctionality of calcium phosphate coatings. Corrosion proc...

10.1586/14750708.2.6.823 © 2 Sevelamer hydrochloride is a nonabsorbed, calciumand metal-free phosphate binder, used to bind phosphate and prevent phosphate accumulation in patients with kidney failure. Sevelamer hydrochloride has been an important alternative to calcium-based phosphate binders, because calcium-based binders result in increased gastrointestinal calcium absorption and a positive ...