The value of dextran 12,000 in ischemically damaged canine kidneys during machine perfusion. 1999

F H Hermens, and J K Kievit, and A P Nederstigt, and B M Stubenitsky, and J H Daemen, and B K van Kreel, and G Kootstra
Department of Surgery, University Hospital Maastricht, Maastricht, The Netherlands.

The use of non-heartbeating (NHB) donor kidneys has led to the search for new methods of viability-testing. We investigated, in a canine model, the relationship between the filtration of dextran 12, 000 into urine and a certain period of warm ischemic time (WIT) during machine perfusion. Twenty-four canine kidneys were divided into three groups, sustaining 0 min, 30 min or 60 min of WIT. After cooling and flushing, the kidneys were perfused on a perfusion machine for 8 h. Three hundred milligrams of dextran 12,000 was added to the perfusate. In the perfusate, dextran and lactate dehydrogenase (LDH) concentrations were measured. Dextran concentrations were also analysed in urine. Intrarenal vascular resistance (IRR) was calculated from pressure and flow characteristics. The 30WIT group showed a higher dextran excretion rate than the other two groups. IRR and LDH measurements showed lower levels in the ischemic groups compared with the control group. Dextran 12,000 is not suitable as a viability test but does show interesting results regarding the low LDH and IRR levels in the ischemic groups.

UI MeSH Term Description Entries
D007511 Ischemia A hypoperfusion of the BLOOD through an organ or tissue caused by a PATHOLOGIC CONSTRICTION or obstruction of its BLOOD VESSELS, or an absence of BLOOD CIRCULATION. Ischemias
D007668 Kidney Body organ that filters blood for the secretion of URINE and that regulates ion concentrations. Kidneys
D007770 L-Lactate Dehydrogenase A tetrameric enzyme that, along with the coenzyme NAD+, catalyzes the interconversion of LACTATE and PYRUVATE. In vertebrates, genes for three different subunits (LDH-A, LDH-B and LDH-C) exist. Lactate Dehydrogenase,Dehydrogenase, L-Lactate,Dehydrogenase, Lactate,L Lactate Dehydrogenase
D010477 Perfusion Treatment process involving the injection of fluid into an organ or tissue. Perfusions
D003911 Dextrans A group of glucose polymers made by certain bacteria. Dextrans are used therapeutically as plasma volume expanders and anticoagulants. They are also commonly used in biological experimentation and in industry for a wide variety of purposes. Dextran,Dextran 40,Dextran 40000,Dextran 70,Dextran 75,Dextran 80,Dextran B-1355,Dextran B-1355-S,Dextran B1355,Dextran B512,Dextran Derivatives,Dextran M 70,Dextran T 70,Dextran T-40,Dextran T-500,Hemodex,Hyskon,Infukoll,Macrodex,Polyglucin,Promit,Rheodextran,Rheoisodex,Rheomacrodex,Rheopolyglucin,Rondex,Saviosol,Dextran B 1355,Dextran B 1355 S,Dextran T 40,Dextran T 500
D004285 Dogs The domestic dog, Canis familiaris, comprising about 400 breeds, of the carnivore family CANIDAE. They are worldwide in distribution and live in association with people. (Walker's Mammals of the World, 5th ed, p1065) Canis familiaris,Dog
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D014019 Tissue Donors Individuals supplying living tissue, organs, cells, blood or blood components for transfer or transplantation to histocompatible recipients. Organ Donors,Donors,Ovum Donors,Semen Donors,Transplant Donors,Donor,Donor, Organ,Donor, Ovum,Donor, Semen,Donor, Tissue,Donor, Transplant,Donors, Organ,Donors, Ovum,Donors, Semen,Donors, Tissue,Donors, Transplant,Organ Donor,Ovum Donor,Semen Donor,Tissue Donor,Transplant Donor
D014655 Vascular Resistance The force that opposes the flow of BLOOD through a vascular bed. It is equal to the difference in BLOOD PRESSURE across the vascular bed divided by the CARDIAC OUTPUT. Peripheral Resistance,Total Peripheral Resistance,Pulmonary Vascular Resistance,Systemic Vascular Resistance,Peripheral Resistance, Total,Resistance, Peripheral,Resistance, Pulmonary Vascular,Resistance, Systemic Vascular,Resistance, Total Peripheral,Resistance, Vascular,Vascular Resistance, Pulmonary,Vascular Resistance, Systemic

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