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The International Journal of Lower Extremity Wounds
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1534734608324124v1
7/4/198    most recent
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High Levels of Plasma Malondialdehyde, Protein Carbonyl, and Fibrinogen Have Prognostic Potential to Predict Poor Outcomes in Patients With Diabetic Foot Wounds: A Preliminary Communication

Roma Rattan, MD

Department of Biochemistry, Jawaharlal Institute of Postgraduate Medical Education & Research, Puducherry 605006, India, tanroma{at}yahoo.com

Debashish Nayak, MD

Department of Surgery, Jawaharlal Institute of Postgraduate Medical Education & Research, Puducherry 605006, India

Diabetic foot ulcer (DFU) is the leading cause of lower extremity amputation and is generally known to have poor prognosis. Oxidative stress is considered important in the pathogenesis of chronic wounds. Fibrinogen is a recognized marker in peripheral vascular disease; increasing levels predict an increased mortality and risk of amputation. The aim of this study was to evaluate if plasma malondialdehyde (MDA), protein carbonyl (PC) and fibrinogen levels can be used as prognostic markers in patients with DFU. The study design was prospective, nonrandomized, and controlled. A total of 41 DFU grade 1 and 20 DFU grade 2 patients were studied in this case—control study. Diabetic controls without foot ulcers and healthy controls were also studied. Plasma MDA, PC, and fibrinogen levels were significantly higher in patients with DFU compared with those without ulcers (P < .05) and nondiabetic controls (P < .001). These parameters increased in association with DFU grade (P < .01). Increased levels of plasma fibrinogen, MDA, and PC correlated with worsened outcomes. An augmented oxidative stress and plasma fibrinogen level >300.4 mg% (95% confidence interval, 100% sensitivity, 99.2% specificity) was correlated with a high risk of amputation in DFU.

Key Words: diabetic foot ulcer • fibrinogen • oxidative stress

This version was published on December 1, 2008

The International Journal of Lower Extremity Wounds, Vol. 7, No. 4, 198-203 (2008)
DOI: 10.1177/1534734608324124
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