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Remote Effects of Lower Limb Ischemia-Reperfusion : Impaired Lung, Unchanged Liver, and Stimulated Kidney Oxidative Capacities
Joint Authors
Chamaraux-Tran, T. N.
Kindo, M.
Zoll, Joffrey
Geny, Bernard
Pottecher, J.
Charles, Anne-Laure
Lejay, A.
Mansour, Z.
Mazzucotelli, J. P.
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-08-10
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
Remote organ impairments are frequent and increase patient morbidity and mortality after lower limb ischemia-reperfusion (IR).
We challenged the hypothesis that lower limb IR might also impair lung, renal, and liver mitochondrial respiration.
Two-hour tourniquet-induced ischemia was performed on both hindlimbs, followed by a two-hour reperfusion period in C57BL6 mice.
Lungs, liver and kidneys maximal mitochondrial respiration (Vmax), complexes II, III, and IV activity (Vsucc), and complex IV activity (VTMPD) were analyzed on isolated mitochondria.
Lower limb IR decreased significantly lung Vmax (29.4±3.3 versus 24±3.7 μmol O2/min/g dry weight, resp.; P=0.042) and tended to reduce Vsucc and VTMPD.
IR did not modify liver but increased kidneys mitochondrial respiration (79.5±19.9 versus 108.6±21.4, P=0.035, and 126±13.4 versus 142.4±10.4 μmol O2/min/g dry weight for Vmax and Vsucc, resp.).
Kidneys mitochondrial coupling was increased after IR (6.5±1.3 versus 8.8±1.1, P=0.008).
There were no histological changes in liver and kidneys.
Thus, lung mitochondrial dysfunction appears as a new early marker of hindlimb IR injuries in mice.
Further studies will be useful to determine whether enhanced kidneys mitochondrial function allows postponing kidney impairment in lower limb IR setting.
American Psychological Association (APA)
Mansour, Z.& Charles, Anne-Laure& Kindo, M.& Pottecher, J.& Chamaraux-Tran, T. N.& Lejay, A.…[et al.]. 2014. Remote Effects of Lower Limb Ischemia-Reperfusion : Impaired Lung, Unchanged Liver, and Stimulated Kidney Oxidative Capacities. BioMed Research International،Vol. 2014, no. 2014, pp.1-7.
https://search.emarefa.net/detail/BIM-468523
Modern Language Association (MLA)
Mansour, Z.…[et al.]. Remote Effects of Lower Limb Ischemia-Reperfusion : Impaired Lung, Unchanged Liver, and Stimulated Kidney Oxidative Capacities. BioMed Research International No. 2014 (2014), pp.1-7.
https://search.emarefa.net/detail/BIM-468523
American Medical Association (AMA)
Mansour, Z.& Charles, Anne-Laure& Kindo, M.& Pottecher, J.& Chamaraux-Tran, T. N.& Lejay, A.…[et al.]. Remote Effects of Lower Limb Ischemia-Reperfusion : Impaired Lung, Unchanged Liver, and Stimulated Kidney Oxidative Capacities. BioMed Research International. 2014. Vol. 2014, no. 2014, pp.1-7.
https://search.emarefa.net/detail/BIM-468523
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-468523