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10.1093/ndt/gfs499 http://scihub22266oqcxt.onion/10.1093/ndt/gfs499 23136218!ä!23136218 Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Warning: imagejpeg(C:\Inetpub\vhosts\kidney.de\httpdocs\phplern\23136218.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117       Nephrol+Dial+Transplant 2013 ; 28 (4): 879-89 Nephropedia Template TP {{tp|p=23136218|t=2013. Cisplatin-induced injury of the renal distal convoluted tubule is associated with hypomagnesaemia in mice |pdf=|usr=}}{{23136218}} gab.com Text Cisplatin-induced injury of the renal distal convoluted tubule is associated with hypomagnesaemia in mice JO: Nephrol Dial Transplant http://www.kidney.de/pget.php?&tw=1&pmid=23136218 #FOAvip BACKGROUND: Cisplatin is an effective anti-neoplastic drug, but its clinical use is limited due to dose-dependent nephrotoxicity. The majority of cisplatin-treated patients develop hypomagnesaemia, often associated with a reduced glomerular filtration rate (GFR), polyuria and other electrolyte disturbances. The aim of this study is to unravel the molecular mechanism responsible for these particular electrolyte disturbances. METHODS: Two groups of 10 mice were injected intraperitoneally three times, once every 4 days, with cisplatin (5 mg/kg body weight,) or vehicle. Serum and urine electrolyte concentrations were determined. Next, renal mRNA levels of distal convoluted tubule (DCT) genes epithelial Mg(2+) channel TRPM6, the Na(+)-Cl(-) cotransporter (NCC), and parvalbumin (PV), as well as marker genes for other tubular segments were measured by real-time qPCR. Subsequently, renal protein levels of NCC, PV, aquaporin 1 and aquaporin 2 were determined using immunoblotting and immunohistochemistry (IHC). RESULTS: The cisplatin-treated mice developed significant polyuria (2.5 +/- 0.3 and 0.9 +/- 0.1 mL/24 h, cisplatin versus control, P < 0.05), reduced creatinine clearance rate (CCr) (0.18 +/- 0.02 and 0.26 +/- 0.02 mL/min, cisplatin versus control, P < 0.05) and a substantially reduced serum level of Mg(2+) (1.23 +/- 0.03 and 1.58 +/- 0.03 mmol/L, cisplatin versus control, P < 0.05), whereas serum Ca(2+), Na(+) and K(+) values were not altered. Measurements of 24 h urinary excretion demonstrated markedly increased Mg(2+), Ca(2+), Na(+) and K(+) levels in the cisplatin-treated group, whereas Pi levels were not changed. The mRNA levels of TRPM6, NCC and PV were significantly reduced in the cisplatin group. The expression levels of the marker genes for other tubular segments were unaltered, except for claudin-16, which was significantly up-regulated by the cisplatin treatment. The observed DCT-specific down-regulation was confirmed at the protein level. CONCLUSIONS: The present study identified the DCT as an important cisplatin-affected renal segment, explaining the high prevalence of hypomagnesaemia following treatment. Twit Text FOAVip Cisplatin-induced injury of the renal distal convoluted tubule is associated with hypomagnesaemia in mice ????Nephrol Dial Transplant http://www.kidney.de/pget.php?&tw=1&pmid=23136218 #FOAvip Twit Text # Free Paper on # # # # # LINK http://www.kidney.de/pget.php?&tw=1&pmid=23136218 #FOAvip English Wikipedia <ref>{{Cite pmid|23136218}}</ref> Cisplatin-induced injury of the renal distal convoluted tubule is associated with hypomagnesaemia in mice #MMPMID23136218 van Angelen AA; Glaudemans B; van der Kemp AW; Hoenderop JG; Bindels RJ Nephrol Dial Transplant 2013[Apr]; 28 (4): 879-89 PMID23136218show ga BACKGROUND: Cisplatin is an effective anti-neoplastic drug, but its clinical use is limited due to dose-dependent nephrotoxicity. The majority of cisplatin-treated patients develop hypomagnesaemia, often associated with a reduced glomerular filtration rate (GFR), polyuria and other electrolyte disturbances. The aim of this study is to unravel the molecular mechanism responsible for these particular electrolyte disturbances. METHODS: Two groups of 10 mice were injected intraperitoneally three times, once every 4 days, with cisplatin (5 mg/kg body weight,) or vehicle. Serum and urine electrolyte concentrations were determined. Next, renal mRNA levels of distal convoluted tubule (DCT) genes epithelial Mg(2+) channel TRPM6, the Na(+)-Cl(-) cotransporter (NCC), and parvalbumin (PV), as well as marker genes for other tubular segments were measured by real-time qPCR. Subsequently, renal protein levels of NCC, PV, aquaporin 1 and aquaporin 2 were determined using immunoblotting and immunohistochemistry (IHC). RESULTS: The cisplatin-treated mice developed significant polyuria (2.5 +/- 0.3 and 0.9 +/- 0.1 mL/24 h, cisplatin versus control, P < 0.05), reduced creatinine clearance rate (CCr) (0.18 +/- 0.02 and 0.26 +/- 0.02 mL/min, cisplatin versus control, P < 0.05) and a substantially reduced serum level of Mg(2+) (1.23 +/- 0.03 and 1.58 +/- 0.03 mmol/L, cisplatin versus control, P < 0.05), whereas serum Ca(2+), Na(+) and K(+) values were not altered. Measurements of 24 h urinary excretion demonstrated markedly increased Mg(2+), Ca(2+), Na(+) and K(+) levels in the cisplatin-treated group, whereas Pi levels were not changed. The mRNA levels of TRPM6, NCC and PV were significantly reduced in the cisplatin group. The expression levels of the marker genes for other tubular segments were unaltered, except for claudin-16, which was significantly up-regulated by the cisplatin treatment. The observed DCT-specific down-regulation was confirmed at the protein level. CONCLUSIONS: The present study identified the DCT as an important cisplatin-affected renal segment, explaining the high prevalence of hypomagnesaemia following treatment. |Animals[MESH] |Antineoplastic Agents/*toxicity[MESH] |Aquaporin 2/genetics/metabolism[MESH] |Biomarkers/*metabolism[MESH] |Blotting, Western[MESH] |Cisplatin/*toxicity[MESH] |Electrolytes/metabolism[MESH] |Female[MESH] |Glomerular Filtration Rate[MESH] |Immunoenzyme Techniques[MESH] |Kidney Diseases/*complications/drug therapy/pathology[MESH] |Kidney Tubules, Distal/*drug effects/injuries[MESH] |Magnesium Deficiency/diagnosis/*etiology/metabolism[MESH] |Mice[MESH] |Mice, Inbred C57BL[MESH] |Parvalbumins/genetics/metabolism[MESH] |RNA, Messenger/genetics[MESH] |Real-Time Polymerase Chain Reaction[MESH] |Receptors, Drug/genetics/metabolism[MESH] |Reverse Transcriptase Polymerase Chain Reaction[MESH] |Solute Carrier Family 12, Member 3[MESH] |Symporters/genetics/metabolism[MESH]Cisplatin-induced injury of the renal distal convoluted tubule is asso(epmc).pdf DeepDyve Pubget Overpricing