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Renal arteriovenous...
Renal arteriovenous shunting in rejecting allograft, hydronephrosis, or haemorrhagic hypotension in the rat
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Nilsson, Lisbet (författare)
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- Ekberg, Henrik (författare)
- Lund University,Lunds universitet,Enheten för forskning kring njurfunktion och njursjukdom,Kirurgi,Forskargrupper vid Lunds universitet,Renal Research Unit,Surgery,Lund University Research Groups
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- Fält, K (författare)
- Skåne University Hospital
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- Löfberg, Helge (författare)
- Lund University,Lunds universitet,Patologi, Malmö,Forskargrupper vid Lunds universitet,Pathology, Malmö,Lund University Research Groups,Skåne University Hospital
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- Sterner, Gunnar (författare)
- Lund University,Lunds universitet,Internmedicin - epidemiologi,Forskargrupper vid Lunds universitet,Internal Medicine - Epidemiology,Lund University Research Groups,Skåne University Hospital
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(creator_code:org_t)
- 1994
- 1994
- Engelska.
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Ingår i: Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association. - : Oxford University Press (OUP). - 1460-2385. ; 9:11, s. 1634-1639
- Relaterad länk:
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http://dx.doi.org/10...
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- We studied the occurrence of arteriovenous (A-V) shunting in three experimental rat models, namely in rejecting allograft kidney, in uni- or bilateral ureteral obstruction, and in haemorrhagic hypotension. Isografted or sham-operated rats served as controls. Radiolabelled microspheres were injected into the renal artery and the increase in the amount of radioactivity in the lungs was considered to reflect A-V shunting in the kidney. In animals exposed to haemorrhage, with a blood pressure not less than 70% of the initial blood pressure, practically no shunting was seen. When animals were bled to a hypotension beyond the autoregulation, A-V shunting occurred inversely correlated to the degree of hypotension. In ureteral obstruction, a less marked but significant increase in shunting of microspheres to the lungs was found after 24 h of unilateral obstruction, irrespective of whether the spheres were injected into the obstructed or the contralateral kidney. Significant A-V shunting during the allograft rejection process was also demonstrated. Histologically, microspheres were found in afferent arterioles less frequently in kidneys with A-V shunting than in controls. These results indicate that A-V shunting is involved in haemorrhagic hypotension, renal graft rejection, and hydronephrosis. In the latter situation A-V shunting is probably regulated by a humoral factor. © 1994 European Dialysis and Transplant Association-European Renal Association.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Urologi och njurmedicin (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Urology and Nephrology (hsv//eng)
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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