BACKGROUND AND OBJECTIVES Management of hyperphosphatemia, a predictor of mortality in chronic kidney disease, is challenging. Nonadherence to dietary phosphate binders, in part, contributes to uncontrolled serum phosphorus levels. This phase IIIb trial assessed the efficacy of increased dosages (3000 to 4500 mg/d) of reformulated lanthanum carbonate (500-, 750-, and 1000-mg tablets) in nonresp...

The axoplasm of the neurons of Penplaneta amencana contains numerous neurotubules which are morphologically similar to the microtubules found in non-nervous tissues after sectioning or negative staining. In cross-sections of fixed material such tubules usually appear as electron-dense circles containing a less dense core and surrounded by a non-opaque ' clear zone'. However, when cockroach gang...

Abstract The sodium form of Faujasite Y (Na-FAU) zeolite has been synthesized by the hydrothermal method, and it exchanged with ammonium sulphate later lanthanum (III) chloride solutions to obtain La-FAU catalyst. three zeolites Na-FAU, NH 4 + -FAU have characterized microcrystalline X-ray diffraction, fluorescence, surface area, pore volume Brönsted acid sites. catalyst successfully activated ...

The aim of this study was to evaluate the toxicity of two rare earth elements (REE), cerium and lanthanum on sea urchin embryos and sperm. Sea urchin (Paracentrotus lividus) embryos were reared for 72 h in Ce(IV)- or La(III)-contaminated seawater at concentrations ranging from 10(-8) to 10(-5) M. Cleaving embryos (5h post-fertilization) were submitted to cytogenetic analysis, scoring mitotic ac...