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- W2004409870 abstract "Larger NMR magnets with relatively high field strengths have become available recently, allowing the application of magnetic resonance spectroscopy (MRS) in larger mammalian organs. The aim of this study was to develop and test a new and simple kidney perfusion model from slaughterhouse swine using a new 4.7-tesla/40-cm diameter system, with the intention behind to provide a human-like mammalian experimental kidney perfusion model, and to avoid sensitive in vivo animal experiments on higher-developed mammalians, 35 pig kidneys obtained 10-15 min post mortem were studied to evaluate and define conditions for optimum metabolic preservation with the following perfusion protocols: (1) immediate plegia with cold Collins solution, 1-3 h cold storage, P-31 MRS; (2) immediate plegia, 1-3 h cold storage, blood reperfusion, P-31 MRS; (3) immediate blood reperfusion, plegia, 1-3 h cold storage, blood reperfusion, P-31 MRS; (4) immediate blood reperfusion, plegia, 24 h cold storage, blood reperfusion, P-31 MRS, P-31 MRS at 81 MHz with a double-tuned surface coil yielded the following results: [table: see text] Blood flow showed a weak correlation with beta-ATP/inorganic phosphate in protocols 3 and 4 of r = 0.64. Repeated reperfusion and ischemia experiments of this model allowed the on-line observation of the metabolic response of the energy phosphate pattern for several hours. In conclusion, slaughterhouse-harvested swine kidneys lend themselves to a simple, low-cost in vitro perfusion model, provided they are reperfused with arterial blood immediately after harvesting.(ABSTRACT TRUNCATED AT 250 WORDS)" @default.
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- W2004409870 date "1991-01-01" @default.
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- W2004409870 title "Application of P-31 Nuclear Magnetic Resonance Spectroscopy to a New Experimental Kidney Perfusion Model Using Cadaveric Porcine Kidneys from Slaughterhouse" @default.
- W2004409870 doi "https://doi.org/10.1159/000186285" @default.
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