Calcium Sensing Analysis
Mostrando 1-12 de 21 artigos, teses e dissertações.
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1. Síntese, caracterização microestrutural e elétrica de compostos cerâmicos à base de soluções sólidas de titanato de estrôncio, titanato de cálcio e óxido de ferro / Synthesis, microstructural and electrical characterization of ceramic compounds based on strontium and calcium titanates and iron-oxide
CaxSr1-xTi1-yFeyO3-δ, x = 0, 0.5 and 1.0, y = 0 and 0.35, ceramic compounds were synthesized by reactive solid state synthesis of CaCO3, SrCO3, TiO2 and Fe2O3, and by the polymeric precursor technique. The ceramic powders were evaluated by thermogravimetry and differential thermal analysis, X-ray diffraction and scanning electron microscopy. Sintered c
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 19/09/2011
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2. Características fenotípicas de Enterobacter cloacae controladas pelo sistema quorum sensing / Phenotypics characteristics by Enterobacter cloacae controlled for the system quorum sensing
Many bacteria present an elaborate system of communication dependent of cell density known as quorum sensing, and the knowledge of the phenotypes controlled by this mechanism may contribute for the elucidation of important processes in food microbiology. The objective of this study was to determine phenotypes regulated by quorum sensing in Enterobacter cloac
Publicado em: 2007
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3. Secondary hyperparathyroidism : prognostic factors of graft-dependent recurrence after total parathyroidectomy and parathyroid autotransplantation / "Hiperparatireoidismo secundário: fatores prognósticos de recidiva atribuída ao implante após paratireoidectomia total e auto-implante"
Nos casos de hiperparatireoidismo secundário onde não é possível o tratamento clínico, é indicada a paratireoidectomia. No Serviço de Cirurgia de Cabeça e Pescoço do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, o tipo de cirurgia utilizada é a paratireoidectomia total com auto-implante de paratireóide em membro su
Publicado em: 2005
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4. Expressão do receptor sensor de calcio com mutações e deleção no dominio extracelular
The calcium sensing receptor (CASR) is a member of the family III of G protein coupled receptors and plays an essential role in calcium homeostasis. The extracellular domain (ECD) of the receptor is the most important site for Ca/+-binding and the majority of the naturally occurring mutations in the ECD affects only the affinity of the receptor for Cao2+. Ot
Publicado em: 2004
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5. The Corpuscles of Stannius, Calcium-Sensing Receptor, and Stanniocalcin: Responses to Calcimimetics and Physiological Challenges
This study has examined whether the calcium-sensing receptor (CaSR) plays a role in control of stanniocalcin-1 (STC-1), the dominant calcium regulatory hormone of fish, comparable with that demonstrated for CaSR in the mediation of ionized calcium regulation of PTH secretion in mammals. In a previous study, we have cloned flounder STC-1 from the corpuscles o
The Endocrine Society.
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6. Calcium sensing receptor: molecular cloning in rat and localization to nerve terminals.
We have molecularly cloned a calcium sensing receptor (CaSR) from a rat striatal cDNA library. Rat CaSR displays 92% overall homology to its bovine counterpart with seven putative transmembrane domains characteristic of the superfamily of guanine nucleotide-binding proteins and significant homology with the metabotropic glutamate receptors. Northern blot ana
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7. Calcium-sensing receptor mutations in familial benign hypercalcemia and neonatal hyperparathyroidism.
Familial benign hypercalcemia (FBH) and neonatal hyperparathyroidism (NHPT) are disorders of calcium homeostasis that are associated with missense mutations of the calcium-sensing receptor (CaR). We have undertaken studies to characterize such CaR mutations in FBH and NHPT and to explore methods for their more rapid detection. Nine unrelated kindreds (39 aff
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8. Cloning and functional expression of a rat kidney extracellular calcium/polyvalent cation-sensing receptor.
The maintenance of a stable extracellular concentration of ionized calcium depends on the integrated function of a number of specialized cells (e.g., parathyroid and certain kidney epithelial cells). We recently identified another G protein-coupled receptor (BoPCaRI) from bovine parathyroid that responds to changes in extracellular Ca2+ within the millimolar
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9. Functional and Biochemical Analysis of the C2 Domains of Synaptotagmin IV
Synaptotagmins (Syts) are a family of vesicle proteins that have been implicated in both regulated neurosecretion and general membrane trafficking. Calcium-dependent interactions mediated through their C2 domains are proposed to contribute to the mechanism by which Syts trigger calcium-dependent neurotransmitter release. Syt IV is a novel member of the Syt f
The American Society for Cell Biology.
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10. Activating calcium-sensing receptor mutation in the mouse is associated with cataracts and ectopic calcification
The extracellular calcium-sensing receptor (CaSR) plays a pivotal role in the regulation of extracellular calcium such that abnormalities, which result in a loss or gain of function, lead to hypercalcemia or hypocalcemia, respectively, in patients. Mice carrying CaSR knockout alleles develop hypercalcemia that mimics the disorders observed in humans. To date
National Academy of Sciences.
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11. Autoantibodies to the extracellular domain of the calcium sensing receptor in patients with acquired hypoparathyroidism.
Acquired hypoparathyroidism (AH) has been considered to result from an autoimmune process but the self-antigens have not been identified. We studied 25 patients with AH, of which 17 had type I autoimmune polyglandular syndrome and 8 had AH associated with autoimmune hypothyroidism. Five of 25 (20%) AH sera reacted to a membrane-associated antigen of 120-140
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12. Calcium-dependent phosphodiesterase 1C inhibits renin release from isolated juxtaglomerular cells
Renin release from the juxtaglomerular (JG) cell is stimulated by the second messenger cAMP and inhibited by calcium. We previously showed JG cells contain a calcium sensing receptor (CaSR), which, when stimulated, decreases cAMP formation and inhibits renin release. We hypothesize CaSR activation decreases cAMP and renin release, in part, by stimulating a c
American Physiological Society.