Related Experiment Videos
Interstitial fluid analysis for assessment of organ function
Simona C Baicu1, Patricia M Simmons, Lia H Campbell
1Organ Recovery Systems, Charleston, SC 29403, USA. sbaicu@organ-recovery.com
Clinical Transplantation
|June 26, 2004
Summary
This study used microdialysis to assess kidney function in non-heart-beating donors (NHBD). Adding fructose-1,6-diphosphate (FDP) to preservation fluid enhanced pyruvate production, indicating improved kidney viability for transplantation.
Area of Science:
- Transplantation immunology
- Organ preservation
- Biochemistry
Background:
- Effective evaluation methods are crucial for non-heart-beating donor (NHBD) kidney viability.
- Assessing kidney function during hypothermic preservation is essential for successful transplantation.
Purpose of the Study:
- To evaluate the use of microdialysis for assessing ex-vivo NHBD kidney function.
- To investigate the effect of fructose-1,6-diphosphate (FDP) on kidney metabolism during hypothermic machine perfusion.
Main Methods:
- Microdialysis probes were inserted into porcine kidneys subjected to warm ischemia.
- Interstitial pyruvate dynamics were monitored during hypothermic machine perfusion with FDP-supplemented perfusate.
- Renal flow, vascular resistance, and perfusate biochemistry were analyzed.
Main Results:
- FDP addition did not alter renal flow, vascular resistance, or effluent biochemistry.
- Significant increases in interstitial pyruvate production were observed in FDP-treated kidneys after 12 and 24 hours of perfusion.
- Interstitial pyruvate levels were significantly higher in the FDP group (149.1 μM) compared to controls (55.6 μM) after 24 hours.
Conclusions:
- Interstitial fluid pyruvate is a potential indicator of kidney function during preservation.
- FDP supplementation enhances pyruvate production, suggesting increased anaerobic ATP production and potentially reduced reperfusion injury.
- This method aids in evaluating NHBD kidney viability for transplantation.