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BONE VIABILITY OF AMPUTATED LIMBS TREATED WITH HYPOTHERMIA:: ASSESSMENT BY EVALUATION OF mRNA LEVELS.
- Source :
-
Hand Surgery . 2005, Vol. 10 Issue 2/3, p231-235. 5p. 1 Chart, 3 Graphs. - Publication Year :
- 2005
-
Abstract
- We evaluated rat bone viability using a bone viability index (BVI). To evaluate hypothermic ischaemic bone injury, 21 amputated hind limbs of Fischer rats were preserved at hypothermia (4°C) for 1, 3 and 6 hours. To evaluate hypothermic ischaemia/reperfusion injury, another 28 amputated limbs were transplanted to recipient rats after hypothermic ischaemia for 3 and 6 hours, respectively. Total RNA isolated from each tibia was fractionated by electrophoresis and hybridised with 32P-labelled cDNA of GAPDH, and the radioactivity of intact and degraded GAPDH mRNA measured. BVI was calculated as follows, BVI = {A / (A + B)} × 100, where A and B represent the radioactivities corresponding to intact and degraded GAPDH mRNA bands, respectively. In the hypothermic ischaemic insult group, BVIs were comparable to those of controls. However, in the 3-hour hypothermic ischaemia/reperfusion group, BVI was lower than that of the controls. Likewise, there was a significant difference between the 6-hour ischaemia/reperfusion group and controls. These results showed that bone viability decreased even after just a 3-hour hypothermic ischaemia/reperfusion. [ABSTRACT FROM AUTHOR]
- Subjects :
- *HYPOTHERMIA
*REPERFUSION injury
*BONE injuries
*AMPUTATION
*RNA
*TIBIA
Subjects
Details
- Language :
- English
- ISSN :
- 02188104
- Volume :
- 10
- Issue :
- 2/3
- Database :
- Academic Search Index
- Journal :
- Hand Surgery
- Publication Type :
- Academic Journal
- Accession number :
- 20242972
- Full Text :
- https://doi.org/10.1142/S021881040500298X