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Updated: Jul 9, 2026
Experimental Models to Study the Neuroprotection of Acidic Postconditioning Against Cerebral Ischemia
Published on: July 31, 2017
N-acetyl cysteine pre-treatment attenuates inflammatory changes in the warm ischemic murine lung
Nele Geudens1, Caroline Van De Wauwer, Arne P Neyrinck
1Laboratory of Experimental Thoracic Surgery, Katholieke Universiteit Leuven, Leuven, Belgium.
Background:
The warm ischemic period in non-heart-beating donor lungs may contribute to a higher degree of ischemia-reperfusion injury after lung transplantation. We investigated the impact and timing of administration of N-acetyl cysteine (NAC) on inflammatory parameters.
Methods:
Ischemia (I) was induced by clamping the hilum of the left lung for 90 minutes, and some protocols were followed by reperfusion (R) for 4 hours. Mice were divided into nine groups (n = 6/group): three control groups ([sham] (thoracotomy only), [I] and [I+R]); two groups with saline instillation only ([saline+I] and [saline+I+R]); and four experimental groups with NAC (50 mg/kg), administered by instillation ([NAC+I], [NAC+I+R] and [I+NAC+R]) or by aerosol ([NACaero+I+R]). Cell counts and protein levels in bronchoalveolar lavage (BAL) were determined.
Results:
NAC administered prior to hilar clamping led to a significant decrease in macrophages and lymphocytes and interleukin (IL)-1 beta levels after ischemia. NAC also resulted in significantly fewer macrophages, lymphocytes and neutrophils as well as IL-1 beta, keratinocyte cytokine (KC), monocyte chemoattractant protein (MCP)-1 and IL-6 levels in BAL taken after reperfusion.
Conclusions:
NAC treatment prior to warm ischemia attenuates inflammatory changes after both the ischemic and reperfusion periods.
