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Articles by P. M. Bauer
Total Records ( 1 ) for P. M. Bauer
  M. P Cole , T. K Rudolph , N. K.H Khoo , U. N Motanya , F Golin Bisello , J. W Wertz , F. J Schopfer , V Rudolph , S. R Woodcock , S Bolisetty , M. S Ali , J Zhang , Y. E Chen , A Agarwal , B. A Freeman and P. M. Bauer
 

Rationale: Fatty acid nitroalkenes are endogenously generated electrophilic byproducts of nitric oxide and nitrite-dependent oxidative inflammatory reactions. Existing evidence indicates nitroalkenes support posttranslational protein modifications and transcriptional activation that promote the resolution of inflammation.

Objective: The aim of this study was to assess whether in vivo administration of a synthetic nitroalkene could elicit antiinflammatory actions in vivo using a murine model of vascular injury.

Methods and Results: The in vivo administration (21 days) of nitro-oleic acid (OA-NO2) inhibited neointimal hyperplasia after wire injury of the femoral artery in a murine model (OA-NO2 treatment resulted in reduced intimal area and intima to media ratio versus vehicle- or oleic acid (OA)-treated animals,P<0.0001). Increased heme oxygenase (HO)-1 expression accounted for much of the vascular protection induced by OA-NO2 in both cultured aortic smooth muscle cells and in vivo. Inhibition of HO by Sn(IV)-protoporphyrin or HO-1 small interfering RNA reversed OA-NO2–induced inhibition of platelet-derived growth factor-stimulated rat aortic smooth muscle cell migration. The upregulation of HO-1 expression also accounted for the antistenotic actions of OA-NO2 in vivo, because inhibition of neointimal hyperplasia following femoral artery injury was abolished in HO-1–/– mice (OA-NO2–treated wild-type versus HO-1–/– mice, P=0.016).

Conclusions: In summary, electrophilic nitro-fatty acids induce salutary gene expression and cell functional responses that are manifested by a clinically significant outcome, inhibition of neointimal hyperplasia induced by arterial injury.

 
 
 
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