Name: a modified two kidney one clip mouse model of renin regulation in renal artery stenosis
Uploaded: 2020-10-26T13:00:00
Description: Watch this Scientific Journal Video about A Modified Two Kidney One Clip Mouse Model of Renin Regulation in Renal Artery Stenosis at JoVE.com

Forskning blev støttet af NHLBI Research Scientist Development Grant (1K01HL135461-01) til JAG. Tak til David Carmona-Berrio og Isabel Adarve-Rengifo for deres tekniske assistance.

Mus blev anbragt og plejet på Vanderbilt University Medical Center (VUMC) Division of Animal Care efter National Institutes of Health (NIH) retningslinjer og Vejledning til pleje og brug af forsøgsdyr, US Department of Health and Human Services. Alle dyreforsøg blev godkendt af VUMC Institutional Animal Care and Use Committee, inden forsøgene blev påbegyndt.
1. Tilberedning og dissektion af dyr
<ol><li>Tænd for kimen og vandpumpen på varmepuden ca. 30 minutter før operationen påbegy...

<ol>
	<li>Kashyap, S., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Blockade+of+CCR2+reduces+macrophage+influx+and+development+of+chronic+renal+damage+in+murine+renovascular+hypertension.">Blockade of CCR2 reduces macrophage influx and development of chronic renal damage in murine renovascular hypertension.</a> American Journal of Physiology-Renal Physiology. 310 (5), 372-384 (2016).</li><li>Wang, W., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Changes+in+inflammatory+biomarkers+after+renal+revascularization+in+atherosclerotic+renal+artery+stenosis.">Changes in inflammatory biomarkers after renal revascularization in atherosclerotic renal artery stenosis.</a> Nephrology Dialysis Transplantation. 31 (9), 1437-1443 (2016).</li><li>Yerram, P., Karuparthi, P. R., Chaudhary, K. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Pathogenesis+and+management+of+renovascular+hypertension+and+ischemic+nephropathy.">Pathogenesis and management of renovascular hypertension and ischemic nephropathy.</a> Minerva Urologica e Nefrologica. 64 (1), 63-72 (2012).</li><li>Covic, A., Gusbeth-Tatomir, P. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+role+of+the+renin-angiotensin-aldosterone+system+in+renal+artery+stenosis,+renovascular+hypertension,+and+ischemic+nephropathy:+diagnostic+implications.">The role of the renin-angiotensin-aldosterone system in renal artery stenosis, renovascular hypertension, and ischemic nephropathy: diagnostic implications.</a> Progress in Cardiovascular Diseases. 52 (3), 204-208 (2009).</li><li>Barreras, A., Gurk-Turner, C. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Angiotensin+II+receptor+blockers.">Angiotensin II receptor blockers.</a> Proceedings. 16 (1), 123-126 (2003).</li><li>Sica, D. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Angiotensin-converting+enzyme+inhibitors+side+effects--physiologic+and+non-physiologic+considerations.">Angiotensin-converting enzyme inhibitors side effects--physiologic and non-physiologic considerations.</a> Journal of Clinical Hypertension. 6 (7), 410-416 (2004).</li><li>Hill, R. D., Vaidya, P. 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O., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Inhibition+of+PDE5+Restores+Depressed+Baroreflex+Sensitivity+in+Renovascular+Hypertensive+Rats.">Inhibition of PDE5 Restores Depressed Baroreflex Sensitivity in Renovascular Hypertensive Rats.</a> Frontiers in Physiology. 7, 15 (2016).</li><li>Dias, A. T., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Sildenafil+ameliorates+oxidative+stress+and+DNA+damage+in+the+stenotic+kidneys+in+mice+with+renovascular+hypertension.">Sildenafil ameliorates oxidative stress and DNA damage in the stenotic kidneys in mice with renovascular hypertension.</a> Journal of Translational Medicine. 12, 35 (2014).</li><li>Lerman, L. O., Chade, A. R., Sica, V., Napoli, C. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Animal+models+of+hypertension:+an+overview.">Animal models of hypertension: an overview.</a> Journal of Laboratory and Clinical Medicine. 146 (3), 160-173 (2005).</li><li>Reckelhoff, J. F., Romero, D. G., Yanes Cardozo, L. L. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Sex,+Oxidative+Stress,+and+Hypertension:+Insights+From+Animal+Models.">Sex, Oxidative Stress, and Hypertension: Insights From Animal Models.</a> Physiology (Bethesda). 34 (3), 178-188 (2019).</li><li>Goldblatt, H., Lynch, J., Hanzal, R. F., Summerville, W. W. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Studies+on+Experimental+Hypertension+:+I.+The+Production+of+Persistent+Elevation+of+Systolic+Blood+Pressure+by+Means+of+Renal+Ischemia.">Studies on Experimental Hypertension : I. The Production of Persistent Elevation of Systolic Blood Pressure by Means of Renal Ischemia.</a> Journal of Experimental Medicine. 59 (3), 347-379 (1934).</li><li>Gollan, F., Richardson, E., Goldblatt, H. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Hypertension+in+the+systemic+blood+of+animals+with+experimental+renal+hypertension.">Hypertension in the systemic blood of animals with experimental renal hypertension.</a> Journal of Experimental Medicine. 88 (4), 389-400 (1948).</li><li>Lewis, H. A., Goldblatt, H. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Studies+on+Experimental+Hypertension:+XVIII.+Experimental+Observations+on+the+Humoral+Mechanism+of+Hypertension.">Studies on Experimental Hypertension: XVIII. Experimental Observations on the Humoral Mechanism of Hypertension.</a> Bulletin of the New York Academy of Medicine. 18 (7), 459-487 (1942).</li><li>Warner, G. M., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Genetic+deficiency+of+Smad3+protects+the+kidneys+from+atrophy+and+interstitial+fibrosis+in+2K1C+hypertension.">Genetic deficiency of Smad3 protects the kidneys from atrophy and interstitial fibrosis in 2K1C hypertension.</a> American Journal of Physiology-Renal Physiology. 302 (11), 1455-1464 (2012).</li><li>Lorenz, J. N., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Renovascular+hypertension+using+a+modified+two-kidney,+one-clip+approach+in+mice+is+not+dependent+on+the+alpha1+or+alpha2+Na-K-ATPase+ouabain-binding+site.">Renovascular hypertension using a modified two-kidney, one-clip approach in mice is not dependent on the alpha1 or alpha2 Na-K-ATPase ouabain-binding site.</a> American Journal of Physiology-Renal Physiology. 301 (3), 615-621 (2011).</li><li>Ebina, K., Iwabuchi, T., Suzuki, S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Histological+change+in+permanently+clipped+or+ligated+cerebral+arterial+wall.+Part+II:+Autopsy+cases+of+aneurysmal+neck+clipping.">Histological change in permanently clipped or ligated cerebral arterial wall. Part II: Autopsy cases of aneurysmal neck clipping.</a> Acta Neurochirurgica. 66 (1-2), 23-42 (1982).</li><li>Saleem, M., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Sox6:+A+new+modulator+of+renin+expression+during+physiological+conditions.">Sox6: A new modulator of renin expression during physiological conditions.</a> bioRxiv. , (2019).</li><li>Saleem, M., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Sox6+as+a+new+modulator+of+renin+expression+in+the+kidney.">Sox6 as a new modulator of renin expression in the kidney.</a> American Journal of Physiology-Renal Physiology. , (2019).</li><li>Chade, A. R., Williams, M. L., Engel, J., Guise, E., Harvey, T. W. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=A+translational+model+of+chronic+kidney+disease+in+swine.">A translational model of chronic kidney disease in swine.</a> American Journal of Physiology-Renal Physiology. 315 (2), 364-373 (2018).</li><li>Xue, Y., Xu, Z., Chen, H., Gan, W., Chong, T. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Low-energy+shock+wave+preconditioning+reduces+renal+ischemic+reperfusion+injury+caused+by+renal+artery+occlusion.">Low-energy shock wave preconditioning reduces renal ischemic reperfusion injury caused by renal artery occlusion.</a> Acta Cir&#250;rgica Brasileira. 32 (7), 550-558 (2017).</li><li>Lalanne, A., Beaudeux, J. L., Bernard, M. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=NGAL:+a+biomarker+of+acute+and+chronic+renal+dysfunction.">NGAL: a biomarker of acute and chronic renal dysfunction.</a> Annales de Biologie Clinique. 69 (6), 629-636 (2011).</li><li>Bolignano, D., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Neutrophil+gelatinase-associated+lipocalin+(NGAL)+as+a+marker+of+kidney+damage.">Neutrophil gelatinase-associated lipocalin (NGAL) as a marker of kidney damage.</a> American Journal of Kidney Diseases. 52 (3), 595-605 (2008).</li><li>Kashyap, S., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Development+of+renal+atrophy+in+murine+2+kidney+1+clip+hypertension+is+strain+independent.">Development of renal atrophy in murine 2 kidney 1 clip hypertension is strain independent.</a> Research in Veterinary Science. 107, 171-177 (2016).</li><li>Anderson, W. P., Woods, R. L., Kline, R. L., Korner, P. I. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Acute+haemodynamic+responses+to+unilateral+renal+artery+stenosis+in+conscious+dogs.">Acute haemodynamic responses to unilateral renal artery stenosis in conscious dogs.</a> Clinical and Experimental Pharmacology and Physiology. 12 (3), 305-309 (1985).</li><li>Imanishi, M., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Critical+degree+of+renal+arterial+stenosis+that+causes+hypertension+in+dogs.">Critical degree of renal arterial stenosis that causes hypertension in dogs.</a> Angiology. 43 (10), 833-842 (1992).</li><li>Ziecina, R., Abramczyk, P., Lisiecka, A., Papierski, K., Przybylski, J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Adrenal-renal+portal+circulation+contributes+to+decrease+in+renal+blood+flow+after+renal+artery+stenosis+in+rats.">Adrenal-renal portal circulation contributes to decrease in renal blood flow after renal artery stenosis in rats.</a> Journal of Physiology and Pharmacology. 49 (4), 553-560 (1998).</li><li>Johnson, J. A., Ichikawa, S., Kurz, K. D., Fowler, W. L., Payne, C. G. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Pressor+responses+to+vasopressin+in+rabbits+with+3-day+renal+artery+stenosis.">Pressor responses to vasopressin in rabbits with 3-day renal artery stenosis.</a> American Journal of Physiology. 240 (6), 862-867 (1981).</li><li>Eirin, A., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Changes+in+glomerular+filtration+rate+after+renal+revascularization+correlate+with+microvascular+hemodynamics+and+inflammation+in+Swine+renal+artery+stenosis.">Changes in glomerular filtration rate after renal revascularization correlate with microvascular hemodynamics and inflammation in Swine renal artery stenosis.</a> Circulation: Cardiovascular Interventions. 5 (5), 720-728 (2012).</li><li>Ma, Z., Jin, X., He, L., Wang, Y. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=CXCL16+regulates+renal+injury+and+fibrosis+in+experimental+renal+artery+stenosis.">CXCL16 regulates renal injury and fibrosis in experimental renal artery stenosis.</a> American Journal of Physiology-Heart and Circulatory. 311 (3), 815-821 (2016).</li><li>Cheng, J., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Temporal+analysis+of+signaling+pathways+activated+in+a+murine+model+of+two-kidney,+one-clip+hypertension.">Temporal analysis of signaling pathways activated in a murine model of two-kidney, one-clip hypertension.</a> American Journal of Physiology-Renal Physiology. 297 (4), 1055-1068 (2009).</li><li>Wiesel, P., Mazzolai, L., Nussberger, J., Pedrazzini, T. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Two-kidney,+one+clip+and+one-kidney,+one+clip+hypertension+in+mice.">Two-kidney, one clip and one-kidney, one clip hypertension in mice.</a> Hypertension. 29 (4), 1025-1030 (1997).</li><li>Johns, C., Gavras, I., Handy, D. 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Nyrearteriestenose er en vigtig årsag til sekundær eller resistent hypertension og nyreskade 1,29. Den to nyre en klip (2K1C) Goldblatt model er blevet anvendt til at studere RAStenose induceret renovascular hypertension 1,17,18,19. En række tidligere undersøgelser ved hjælp af forskellige dyremodeller har vist, at stenose i nyrear...

Nyrearteriestenose (RAStenose) er et uhåndterligt problem, der påvirker ca. 6% af mennesker over 65 år og hos op til 40% af mennesker med koronar eller perifer vaskulær sygdom 1,2. Nuværende behandlinger for sygdommen er begrænsede; derfor er der et kritisk behov for at udvikle nye terapier til behandling af renovasculær hypertension eller resistent hypertension induceret af RAStenose. Renin angiotensin aldosteron system (RAAS) er den vigtigste vej involveret i patogenesen af RAStenose induceret hypertension eller renovascular hypertension 3,4. Kendte terapier rettet mod RAAS, såsom ACE-hæmmere eller angiotensinreceptorblokkere, lindrer hypertension, men skal undersøges nøje for nyresvigt og hyperkaliæmi 5,6,7. Renin katalyserer det hastighedsbegrænsende trin i RAAS; det omdanner angiotensinogen til angiotensin I. I aterosklerose forårsager plaquedannelse indsnævring af nyrearterien, der driver reninsekretion, hvilket resulterer i renovasculær hypertension og nyreskade8. En række undersøgelser har rapporteret øgede niveauer af oxidativ stress under renovascular hypertension hos mennesker, som blev bekræftet med to nyre en klip (2K1C) mus model samt andre hypertensive dyremodeller 2,9,10,11,12,13,14,15,16 . Den molekylære mekanisme for reninekspressionskontrol under RAStenose-induceret renovasculær hypertension er ikke godt forstået og berettiger yderligere undersøgelse.
Eksperimentelle dyremodeller, der pålideligt og reproducerbart rekapitulerer RAStenose, er vigtige for at belyse de cellulære og molekylære mekanismer for reninekspressionskontrol til udvikling af nye terapier. 2K1C musemodellen er en veletableret eksperimentel model til undersøgelse af patogenesen af renovasculær hypertension 17,18,19,20. Denne model genereres af indsnævring af nyrearterien ved hjælp af et klip 17,20,21, hvilket producerer renal arterieokklusion, der resulterer i en stigning i reninekspression og hypertension 17,19,20,21. Der er dog ingen tekniske rapporter til rådighed, som beskriver en trinvis procedure til at generere nyrearteriestenose i dyremodeller.
Konventionelle U-formede sølvklip, polyurethanrør og andre klip er blevet brugt til at indsnævre nyrearterien for at inducere nyrearteriestenose. Nogle undersøgelser har vist, at klippets design og materiale er afgørende for at opnå pålidelige og reproducerbare data med 2K1C-dyremodellen. Ifølge Lorenz et al. inducerer brugen af konventionelle U-designede sølvclips en lav succesrate for hypertension (40-60%)21. På grund af klipdesignet presses nyrearterien sideværts, hvilket udløser et par indsnævringer og større sandsynlighed for at blive løsnet fra nyrearterien. Sølvformbarhed og duktilitet kan tillade ændringer i klipbredder; derfor forårsager forskellige hypertensionsniveauer blandt mus. Sølvdioxider på klippet kan forårsage perivaskulær betændelse, intim proliferation og vævsgranulering, hvilket ændrer nyrearteriediameteren22. På grund af variationen i niveauerne af hypertension opnået med den konventionelle U-design sølvclips har Warner et al. og Lorenz et al. med succes brugt en polyurethanslange af rundere design til at initiere nyrearteriestenose hos mus, hvilket genererer en mere pålidelig og konsekvent induktion af de to nyrer et klip dyremodel20,21.
I denne rapport beskriver vi en kirurgisk protokol til at generere eksperimentel RAStenose hos mus ved hjælp af polyurethanrørene til at indsnævre nyrearterien. Polyurethan runddesignmanchetten er en mere reproducerbar, pålidelig og billig klemme til at generere stenose i mus. Målet med denne eksperimentelle model er at studere og definere den molekylære og cellulære mekanisme for reninekspressionskontrol under nyrearteriestenose. Vi bekræftede succesen med RAStenosis mus model ved at måle renin ekspression og nyreskade markør neutrofil gelatinase-associeret lipocalin (N-GAL).

<table>
	<tbody>
		<tr>
			<td>Diet Gel</td>
			<td>Clear H2O</td>
			<td>Diet-Gel 76A</td>
			<td>Surgery recovery diet</td>
		</tr>
		<tr>
			<td>EMC Heated Hard pad</td>
			<td>Hallowell</td>
			<td>000A2788B</td>
			<td>Heating pads were used to keep mice warm</td>
		</tr>
		<tr>
			<td>Ethilon Nylon Suture</td>
			<td>Ethicon</td>
			<td>662G</td>
			<td>4-0 (1.5 metric), This suture was used to close the peritoneum, and skin</td>
		</tr>
		<tr>
			<td>Ethilon Nylon Suture</td>
			<td>Ethicon</td>
			<td>2815 G</td>
			<td>8-0 (0.4 metric), This suture was used to close cuff to tie and constrict the artery</td>
		</tr>
		<tr>
			<td>Germinator 500</td>
			<td>Braintree Scientific Inc.</td>
			<td>GER 5287</td>
			<td>Sterilize surgical tools between surgeries</td>
		</tr>
		<tr>
			<td>Ketoprofen</td>
			<td>Zoetis</td>
			<td>Ketofen</td>
			<td>Painkiller</td>
		</tr>
		<tr>
			<td>Polyurethane</td>
			<td>Braintree Scientific Inc.</td>
			<td>MRE-025</td>
			<td>This tube was used to initiate stenosis</td>
		</tr>
		<tr>
			<td>Povidone-iodine antiseptic swabsticks</td>
			<td>Medline</td>
			<td>MDS093901</td>
			<td>It was applied after hair removal and surgery on the skin</td>
		</tr>
		<tr>
			<td>Reflex 7 Clip Applier</td>
			<td>Roboz Surgical Instrument Co</td>
			<td>204-1000</td>
			<td>This clip applier was used to apply clip in case one or more sutures went off</td>
		</tr>
		<tr>
			<td>Sterile towel drapes</td>
			<td>Dynarex</td>
			<td>4410</td>
			<td>It was used as a bedsheet for mice during surgery</td>
		</tr>
		<tr>
			<td>Triple antibiotic ointment</td>
			<td>Medi-First</td>
			<td>22312</td>
			<td></td>
		</tr>
		<tr>
			<td>Water pump</td>
			<td>Stryker</td>
			<td>T/pump Professionals</td>
			<td>Used to warm and circulate water in the heating hard pad to keep mice warm during and post-surgery</td>
		</tr>
	</tbody>
</table>

a modified two kidney one clip mouse model of renin regulation in renal artery stenosis

Nyrearteriestenose er en almindelig tilstand hos patienter med koronar eller perifer vaskulær sygdom, hvor renin angiotensin aldosteronsystemet (RAAS) er overaktiveret. I denne sammenhæng er der en indsnævring af nyrearterierne, der stimulerer en stigning i ekspressionen og frigivelsen af renin, den hastighedsbegrænsende protease i RAAS. Den resulterende stigning i reninekspression er en kendt driver af renovasculær hypertension, ofte forbundet med nyreskade og slutorganskade. Der er således stor interesse for at udvikle nye behandlinger for denne tilstand. Den molekylære og cellulære mekanisme for reninkontrol i nyrearteriestenose er ikke fuldt ud forstået og berettiger yderligere undersøgelse. For at inducere nyrearteriestenose hos mus blev der udviklet en modificeret 2 nyre 1 klip (2K1C) Goldblatt musemodel. Den højre nyre blev stenoseret i vildtypemus, og falske opererede mus blev brugt som kontrol. Efter nyrearteriestenose bestemte vi reninekspression og nyreskade. Nyrer blev høstet, og friske cortices blev brugt til at bestemme protein og mRNA-ekspression af renin. Denne dyremodel er reproducerbar og kan bruges til at studere patofysiologiske reaktioner, molekylære og cellulære veje involveret i renovasculær hypertension og nyreskade.

Nyrearterieforsnævring øger reninekspression i den stenoserede nyre, mens den undertrykker ekspression i den kontralaterale nyre. De to nyrer et klip (2K1C) eller Goldblatt model af stenose inducerer øget reninekspression og nyreskade. Dette anerkendes som den bedste repræsentative model for ensidig nyrearteriestenose hos mennesker.
Ekspression af renin og prorenin (forløber for renin) blev målt ved hjælp af immunblotting. Dataene viser, at renin- og proreninekspression steg i den sten...

Watch this Scientific Journal Video about A Modified Two Kidney One Clip Mouse Model of Renin Regulation in Renal Artery Stenosis at JoVE.com

A Modified Two Kidney One Clip Mouse Model of Renin Regulation in Renal Artery Stenosis

En modificeret 2 nyre 1 klip (2K1C) Goldblatt musemodel blev udviklet ved hjælp af polyurethanrør til at initiere nyrearteriestenose, hvilket inducerede en stigning i reninekspression og nyreskade. Her beskriver vi en detaljeret procedure for forberedelse og placering af manchetten på nyrearterien for at generere en reproducerbar og konsistent 2K1C musemodel.

En modificeret to nyre en klip musemodel af reninregulering i nyrearteriestenose

Renal artery stenosis is a common condition in patients with coronary or peripheral vascular disease where the renin angiotensin aldosterone system (RAAS) ...

Research

JoVE Journal

Medicine

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