Calcium and Phosphate Disorders: Core Curriculum 2024
Maintaining normal calcium and phosphate homeostasis is essential for optimal cellular, metabolic, and organ function. Parathyroid hormone, fibroblast growth …Web
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Maintaining normal calcium and phosphate homeostasis is essential for optimal cellular, metabolic, and organ function. Parathyroid hormone, fibroblast growth …Web
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The incorporation of calcium phosphate particles in polymers has been attempted to mimic the structure of human bone, however, ... This is the first report on the synthesis of octacalcium phosphate using micro-flow reactor. The octacalcium phosphates obtained by using micro-flow reactor were characterized by the narrower …Web
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No significant differences were found between the mean salivary concentrations of calcium, phosphorous, and ALP before and after phase I periodontal therapy. Other studies conducted on this topic have reported controversial results. Vivek et al 24 evaluated the relationship between salivary levels of calcium and chronic …Web
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Experimental Section. Structures were obtained with a 3D flow-injection system: 46 A plexiglass cuvette (3.1 × 3.1 × 10 cm 3) served as a reaction vessel, into which 50 mL of calcium chloride solution was poured.Sodium phosphate solution was injected through a Tygon tube (i.d. = 0.76 mm) from below using a peristaltic pump (Ismatic …Web
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If a kidney stone becomes lodged in the ureters, it may block the flow of urine and cause the kidney to swell and the ureter to spasm, which can be very painful. At that point, you may experience these symptoms: ... Calcium stones may also occur in the form of calcium phosphate. This type of stone is more common in metabolic conditions, such …Web
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Toward the development of a practical and green approach for removing phosphate from water, a monolithic cryogel based on starch and calcium silicate hydrate (Cry–CSH) was employed as a phosphate …Web
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Maintaining normal calcium and phosphate homeostasis is essential for optimal cellular, metabolic, and organ function. Parathyroid hormone, fibroblast growth factor 23, and 1,25-dihydroxyvitamin D regulate calcium and phosphate homeostasis via multiple interlinked feedback loops, receptors, ion channels, and transporters. Following an initial …Web
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Abstract. We have studied the calcium phosphate precipitation reaction by producing chemical gardens in a controlled manner using a three-dimensional flow-driven technique. The injection of the …Web
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To investigate the changes of salivary flow rate and salivary pH of Syrian children with mixed dentition following application of Casein Phosphopeptide-Amorphous Calcium Phosphate (CPP-ACP). This ...Web
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Multivitamin complexes with calcium orthophosphate are widely available in the market, and β-TCP is used as the calcium phosphate there. In addition, β-TCP …Web
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Description. Dibasic Calcium Phosphates Dihydrate & Anhydrous, Tribasic Calcium Phosphate. EMCOMPRESS ® Calcium Phosphates are water-insoluble functional fillers for wet granulation and direct compression applications. EMCOMPRESS ® offers improved flow for all powder mixtures, including poorly flowing APIs and plant extracts. …Web
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dicalcium phosphate and the flow of solution will be blocked (Figure 12). When this technology is used calcium nitrate cannot be crystallized and a double salt is obtained: Ca(NO 3 ) 2Web
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Calcium ions (Ca 2+) are crucial for a variety of cellular functions.The extracellular and intracellular Ca 2+ concentrations are thus tightly regulated to maintain Ca 2+ homeostasis. The kidney, one of the major organs of the excretory system, regulates Ca 2+ homeostasis by filtration and reabsorption. Approximately 60% of the Ca 2+ in plasma …Web
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Figure 20.5.1 20.5. 1: Phosphorus cycle: In nature, phosphorus exists as the phosphate ion (PO 43− ). Weathering of rocks and volcanic activity releases phosphate into the soil, water, and air, where it becomes available to terrestrial food webs. Phosphate enters the oceans via surface runoff, groundwater flow, and river flow.Web
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For kidney stones, crystal deposition in the renal papilla is thought to begin with stromal vesicles, and under conditions of mineral imbalance, calcium and phosphate flow through their appropriate channels into EVs, leading to initial mineral accumulation in the form of amorphous calcium phosphate, forming hydroxyapatite crystals; At the …Web
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Blood flow was intact and the muscle temperature was 30°C. The protocol involved direct muscle stimulation with 400 ms tetani repeated every 4 s (duty cycle = 0.1). ... Millar, N. C., and Homsher, E. (1990). The effect of phosphate and calcium on force generation in glycerinated rabbit skeletal muscle fibers; a steady-state and transient ...Web
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Calcium and phosphate react in opposite ways: As blood calcium levels increase, phosphate levels decrease. A hormone called parathyroid hormone (PTH), which your parathyroid glands release, controls the levels of calcium and phosphate in your blood. Most people have four pea-sized parathyroid glands located behind their thyroid gland — …Web
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Here we show that carbonate-rich lakes can concentrate phosphate to >1 molal levels by locking up calcium in carbonate minerals, which prevents phosphate removal by apatite precipitation. Phosphate-rich lakes may have preferentially formed on the prebiotic Earth because of carbonic acid weathering under CO 2 -rich atmospheres …Web
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The injection of the phosphate containing solutioninto the calcium ion reservoir has resulted in structures varyingfrom membranes to crystals. Dynamical phase …Web
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@article{osti_20062641, title = {Mechanisms for the removal of calcium phosphate deposits in turbulent flow}, author = {Littlejohn, F and Grant, C S and Saez, A E}, abstractNote = {This work investigates the mechanisms for the removal of calcium phosphate deposits from stainless steel tubing in turbulent flows. Two types of deposits …Web
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Hyperphosphatemia or even serum phosphate levels within the "normal laboratory range" are highly associated with increased cardiovascular disease risk and mortality in the general population and …Web
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Calcium phosphate particles activate the p38/NF-κB pathway and induce osteopontin secretion. (A and B) HK-2 cells were incubated with synthesized calcium phosphate particles ... the calcium phosphate particles on the surface of proximal tubule cells for 6 hours or longer against the tubular fluid flow, which facilitated the endocytosis …Web
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Post-filter replacement fluid flow: Calcium replacement flow: Patient fluid removal rate: Pre-filter replacement fluid flow: Citrate dose: Composition of solutions used (i.e. concentration of calcium, bicarbonate, citrate, hydrogen phosphate, sodium, magnesium, potassium) Filter elapsed treatment duration (blood pump running time)Web
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Serum calcium is often chelated into the ionic complexes of calcium phosphate, calcium carbonate, and calcium oxalate. Finally, free calcium, which makes up 51% of the serum calcium, is utilized by the body to maintain physiologic functions. ... The action potential triggers an inward flow of calcium that potentiates additional …Web
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Hydroxyapatite (Ca 10 (PO 4) 6 (OH) 2) (HA) is a phase of calcium phosphate, and belongs to a family of materials called the calcium apatites (Ref 1, 2).Calcium phosphate materials differ in their ratio of calcium to phosphorous, where stochiometric HA has a calcium to phosphorous ratio of 1.67 (Ref 3, 4).The names, …Web
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Podocytes were stained with the fluorescent cytosolic calcium indicator Fluo-4 AM (acetoxymethyl), and the fluorescence intensity was measured by flow cytometry. As shown in Fig. 3D, cytoplasmic calcium levels were higher in Tg-C321R podocytes relative to control podocytes. Collectively, these results indicate that the calpain 2-caspase 12 ...Web
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Calcium orthophosphates (CaPs) are important in geology, biomineralization, animal metabolism and biomedicine, and constitute a structurally and …Web
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Metabolic Regulation of Phosphate. The organs involved in phosphate regulation include intestine, bone, kidney, and parathyroid gland. The daily intake of dietary phosphate is about 1.0–1.5 g, which is absorbed by the intestinal epithelial cell type II sodium-dependent phosphate co-transporter (Npt)-2a, 2b, and 2c (Masuda et al., …Web
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