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10.1371/journal.pone.0055412 http://scihub22266oqcxt.onion/10.1371/journal.pone.0055412 23383183!3559602!23383183     free     free     free Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 267.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534       PLoS+One 2013 ; 8 (1): e55412 Nephropedia Template TP {{tp|p=23383183|t=2013. Autosomal dominant hypercalciuria in a mouse model due to a mutation of the epithelial calcium channel, TRPV5 |pdf=|usr=}}{{23383183}} gab.com Text Autosomal dominant hypercalciuria in a mouse model due to a mutation of the epithelial calcium channel, TRPV5 JO: PLoS One http://www.kidney.de/pget.php?&tw=1&pmid=23383183 #FOAvip Hypercalciuria is a major cause of nephrolithiasis, and is a common and complex disorder involving genetic and environmental factors. Identification of genetic factors for monogenic forms of hypercalciuria is hampered by the limited availability of large families, and to facilitate such studies, we screened for hypercalciuria in mice from an N-ethyl-N-nitrosourea mutagenesis programme. We identified a mouse with autosomal dominant hypercalciuria (HCALC1). Linkage studies mapped the Hcalc1 locus to a 11.94 Mb region on chromosome 6 containing the transient receptor potential cation channel, subfamily V, members 5 (Trpv5) and 6 (Trpv6) genes. DNA sequence analysis of coding regions, intron-exon boundaries and promoters of Trpv5 and Trpv6 identified a novel T to C transition in codon 682 of TRPV5, mutating a conserved serine to a proline (S682P). Compared to wild-type littermates, heterozygous (Trpv5(682P/+)) and homozygous (Trpv5(682P/682P)) mutant mice had hypercalciuria, polyuria, hyperphosphaturia and a more acidic urine, and approximately 10% of males developed tubulointerstitial nephritis. Trpv5(682P/682P) mice also had normal plasma parathyroid hormone but increased 1,25-dihydroxyvitamin D(3) concentrations without increased bone resorption, consistent with a renal defect for the hypercalciuria. Expression of the S682P mutation in human embryonic kidney cells revealed that TRPV5-S682P-expressing cells had a lower baseline intracellular calcium concentration than wild-type TRPV5-expressing cells, suggesting an altered calcium permeability. Immunohistological studies revealed a selective decrease in TRPV5-expression from the renal distal convoluted tubules of Trpv5(682P/+) and Trpv5(682P/682P) mice consistent with a trafficking defect. In addition, Trpv5(682P/682P) mice had a reduction in renal expression of the intracellular calcium-binding protein, calbindin-D(28K), consistent with a specific defect in TRPV5-mediated renal calcium reabsorption. Thus, our findings indicate that the TRPV5 S682P mutant is functionally significant and study of HCALC1, a novel model for autosomal dominant hypercalciuria, may help further our understanding of renal calcium reabsorption and hypercalciuria. Twit Text FOAVip Autosomal dominant hypercalciuria in a mouse model due to a mutation of the epithelial calcium channel, TRPV5 ????PLoS One http://www.kidney.de/pget.php?&tw=1&pmid=23383183 #FOAvip Twit Text # Free Paper on # # # # # LINK http://www.kidney.de/pget.php?&tw=1&pmid=23383183 #FOAvip English Wikipedia <ref>{{Cite pmid|23383183}}</ref> Autosomal dominant hypercalciuria in a mouse model due to a mutation of the epithelial calcium channel, TRPV5 #MMPMID23383183 Loh NY; Bentley L; Dimke H; Verkaart S; Tammaro P; Gorvin CM; Stechman MJ; Ahmad BN; Hannan FM; Piret SE; Evans H; Bellantuono I; Hough TA; Fraser WD; Hoenderop JG; Ashcroft FM; Brown SD; Bindels RJ; Cox RD; Thakker RV PLoS One 2013[]; 8 (1): e55412 PMID23383183show ga Hypercalciuria is a major cause of nephrolithiasis, and is a common and complex disorder involving genetic and environmental factors. Identification of genetic factors for monogenic forms of hypercalciuria is hampered by the limited availability of large families, and to facilitate such studies, we screened for hypercalciuria in mice from an N-ethyl-N-nitrosourea mutagenesis programme. We identified a mouse with autosomal dominant hypercalciuria (HCALC1). Linkage studies mapped the Hcalc1 locus to a 11.94 Mb region on chromosome 6 containing the transient receptor potential cation channel, subfamily V, members 5 (Trpv5) and 6 (Trpv6) genes. DNA sequence analysis of coding regions, intron-exon boundaries and promoters of Trpv5 and Trpv6 identified a novel T to C transition in codon 682 of TRPV5, mutating a conserved serine to a proline (S682P). Compared to wild-type littermates, heterozygous (Trpv5(682P/+)) and homozygous (Trpv5(682P/682P)) mutant mice had hypercalciuria, polyuria, hyperphosphaturia and a more acidic urine, and approximately 10% of males developed tubulointerstitial nephritis. Trpv5(682P/682P) mice also had normal plasma parathyroid hormone but increased 1,25-dihydroxyvitamin D(3) concentrations without increased bone resorption, consistent with a renal defect for the hypercalciuria. Expression of the S682P mutation in human embryonic kidney cells revealed that TRPV5-S682P-expressing cells had a lower baseline intracellular calcium concentration than wild-type TRPV5-expressing cells, suggesting an altered calcium permeability. Immunohistological studies revealed a selective decrease in TRPV5-expression from the renal distal convoluted tubules of Trpv5(682P/+) and Trpv5(682P/682P) mice consistent with a trafficking defect. In addition, Trpv5(682P/682P) mice had a reduction in renal expression of the intracellular calcium-binding protein, calbindin-D(28K), consistent with a specific defect in TRPV5-mediated renal calcium reabsorption. Thus, our findings indicate that the TRPV5 S682P mutant is functionally significant and study of HCALC1, a novel model for autosomal dominant hypercalciuria, may help further our understanding of renal calcium reabsorption and hypercalciuria. |*Phenotype[MESH] |Animals[MESH] |Base Sequence[MESH] |Calbindins[MESH] |Calcium Channels/*genetics[MESH] |Chromosome Mapping[MESH] |Genes, Dominant/genetics[MESH] |Genetic Predisposition to Disease/*genetics[MESH] |Hypercalciuria/*genetics/pathology[MESH] |Immunohistochemistry[MESH] |Mice[MESH] |Molecular Sequence Data[MESH] |Mutation, Missense/genetics[MESH] |S100 Calcium Binding Protein G/metabolism[MESH] |Sequence Analysis, DNA[MESH]Autosomal dominant hypercalciuria in a mouse model due to a mutation o(epmc).pdf DeepDyve Pubget Overpricing