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Imaging Renal Urea Handling in Rats at Millimeter Resolution using Hyperpolarized Magnetic Resonance Relaxometry.

Reed GD, von Morze C, Verkman AS, Koelsch BL, Chaumeil MM, Lustig M, Ronen SM, Bok RA, Sands JM, Larson PE, Wang ZJ, Larsen JH, Kurhanewicz J, Vigneron DB.

Tomography. 2016 Jun;2(2):125-135.


High resolution (13)C MRI with hyperpolarized urea: in vivo T(2) mapping and (15)N labeling effects.

Reed GD, von Morze C, Bok R, Koelsch BL, Van Criekinge M, Smith KJ, Hong Shang, Larson PE, Kurhanewicz J, Vigneron DB.

IEEE Trans Med Imaging. 2014 Feb;33(2):362-71. doi: 10.1109/TMI.2013.2285120. Epub 2013 Oct 25.


Monitoring urea transport in rat kidney in vivo using hyperpolarized ¹³C magnetic resonance imaging.

von Morze C, Bok RA, Sands JM, Kurhanewicz J, Vigneron DB.

Am J Physiol Renal Physiol. 2012 Jun 15;302(12):F1658-62. doi: 10.1152/ajprenal.00640.2011. Epub 2012 Apr 4.


Hyperpolarized 13 C,15 N2 -urea T2 relaxation changes in acute kidney injury.

Mariager CØ, Nielsen PM, Qi H, Ringgaard S, Laustsen C.

Magn Reson Med. 2018 Aug;80(2):696-702. doi: 10.1002/mrm.27050. Epub 2017 Dec 28.


Hyperpolarized 13 C,15 N2 -Urea MRI for assessment of the urea gradient in the porcine kidney.

Hansen ES, Stewart NJ, Wild JM, Stødkilde-Jørgensen H, Laustsen C.

Magn Reson Med. 2016 Dec;76(6):1895-1899. doi: 10.1002/mrm.26483. Epub 2016 Sep 26.


Renal phenotype of UT-A urea transporter knockout mice.

Fenton RA, Flynn A, Shodeinde A, Smith CP, Schnermann J, Knepper MA.

J Am Soc Nephrol. 2005 Jun;16(6):1583-92. Epub 2005 Apr 13.


Urinary concentrating defect in mice with selective deletion of phloretin-sensitive urea transporters in the renal collecting duct.

Fenton RA, Chou CL, Stewart GS, Smith CP, Knepper MA.

Proc Natl Acad Sci U S A. 2004 May 11;101(19):7469-74. Epub 2004 May 3.


Hyperpolarized 13C urea relaxation mechanism reveals renal changes in diabetic nephropathy.

Laustsen C, Stokholm Nørlinger T, Christoffer Hansen D, Qi H, Mose Nielsen P, Bonde Bertelsen L, Henrik Ardenkjaer-Larsen J, Stødkilde Jørgensen H.

Magn Reson Med. 2016 Feb;75(2):515-8. doi: 10.1002/mrm.26036. Epub 2015 Nov 19.


Urea and NaCl regulate UT-A1 urea transporter in opposing directions via TonEBP pathway during osmotic diuresis.

Kim YM, Kim WY, Lee HW, Kim J, Kwon HM, Klein JD, Sands JM, Kim D.

Am J Physiol Renal Physiol. 2009 Jan;296(1):F67-77. doi: 10.1152/ajprenal.00143.2008. Epub 2008 Oct 22.


Vasopressin regulation of the renal UT-A3 urea transporter.

Stewart GS, Thistlethwaite A, Lees H, Cooper GJ, Smith C.

Am J Physiol Renal Physiol. 2009 Mar;296(3):F642-8. doi: 10.1152/ajprenal.90660.2008. Epub 2008 Dec 3.


Urea may regulate urea transporter protein abundance during osmotic diuresis.

Kim D, Klein JD, Racine S, Murrell BP, Sands JM.

Am J Physiol Renal Physiol. 2005 Jan;288(1):F188-97. Epub 2004 Jul 13.


Renal ischemia and reperfusion assessment with three-dimensional hyperpolarized 13 C,15 N2-urea.

Nielsen PM, Szocska Hansen ES, Nørlinger TS, Nørregaard R, Bonde Bertelsen L, Stødkilde Jørgensen H, Laustsen C.

Magn Reson Med. 2016 Nov;76(5):1524-1530. doi: 10.1002/mrm.26377. Epub 2016 Aug 22.


Regulation of urea transporter proteins in kidney and liver.

Sands JM.

Mt Sinai J Med. 2000 Mar;67(2):112-9. Review.


Investigating tumor perfusion and metabolism using multiple hyperpolarized (13)C compounds: HP001, pyruvate and urea.

von Morze C, Larson PE, Hu S, Yoshihara HA, Bok RA, Goga A, Ardenkjaer-Larsen JH, Vigneron DB.

Magn Reson Imaging. 2012 Apr;30(3):305-11. doi: 10.1016/j.mri.2011.09.026. Epub 2011 Dec 12.


Vasopressin increases expression of UT-A1, UT-A3, and ER chaperone GRP78 in the renal medulla of mice with a urinary concentrating defect.

Cai Q, Nelson SK, McReynolds MR, Diamond-Stanic MK, Elliott D, Brooks HL.

Am J Physiol Renal Physiol. 2010 Oct;299(4):F712-9. doi: 10.1152/ajprenal.00690.2009. Epub 2010 Jul 28.


Vasopressin increases plasma membrane accumulation of urea transporter UT-A1 in rat inner medullary collecting ducts.

Klein JD, Fröhlich O, Blount MA, Martin CF, Smith TD, Sands JM.

J Am Soc Nephrol. 2006 Oct;17(10):2680-6. Epub 2006 Sep 7.


Cytokine-mediated regulation of urea transporters during experimental endotoxemia.

Schmidt C, Höcherl K, Bucher M.

Am J Physiol Renal Physiol. 2007 May;292(5):F1479-89. Epub 2007 Jan 16.


Urea transport in the kidney.

Klein JD, Blount MA, Sands JM.

Compr Physiol. 2011 Apr;1(2):699-729. doi: 10.1002/cphy.c100030. Review.


Morphologic and dynamic renal imaging with assessment of glomerular filtration rate in a pcy-mouse model using a clinical 3.0 Tesla scanner.

Sadick M, Schock D, Kraenzlin B, Gretz N, Schoenberg SO, Michaely HJ.

Invest Radiol. 2009 Aug;44(8):469-75. doi: 10.1097/RLI.0b013e3181a8afa1.


Altered expression of urea transporters in response to ureteral obstruction.

Li C, Klein JD, Wang W, Knepper MA, Nielsen S, Sands JM, Frøkiaer J.

Am J Physiol Renal Physiol. 2004 Jun;286(6):F1154-62. Epub 2004 Feb 24.

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