Phagocytic and oxidative burst activity of neutrophils in type 2 diabetic patients with foot ulcers
Keywords:Neutrophil phagocytic index, respiratory burst, type 2 DM patients, diabetes, foot ulcers, predictors for treatment efficacy of foot ulcers
Introduction and Aim: Diabetic foot ulcers are common complications seen in diabetic patients. Treatment of this disabling foot sore remains a challenge to health care professionals. This study aimed at evaluating whether the neutrophils from type 2 diabetic patients with foot ulcers present an impairment of phagocytic index and impairment in respiratory burst. We also aimed at understanding whether the impairment in neutrophil phagocytic activity can be alleviated with short course of standard treatment regime for foot ulcers.
Methodology: For this case-controled study, 43 participants with type 2 diabetes (18 with foot ulcers and 25 without foot ulcers) were prospectively recruited along with 18 healthy volunteers. Phagocytic activity of neutrophils and respiratory burst of neutrophils was assessed along with ESR, percentage neutrophil counts before and after 2 weeks of standard treatment for foot ulcers.
Results: Neutrophils of type 2 diabetic patients (with and without foot ulcers ) showed lower levels of phagocytic index and lower percentage of respiratory burst on comparison with non-diabetic subjects. Furthermore, on receiving treatment for foot ulcers, a significant improvement in neutrophil phagocytic indices were observed, along with improvement in wound ulcer score.
Conclusion: Phagocytic activity of the neutrophils is impaired in type 2 diabetics (with and without foot ulcers). Neutrophil phagocytic indices can be improved on glycemic control. Additionally, improvement in neutrophil phagocytic indices after short course treatment for foot ulcers can be useful markers to predict treatment efficacy and in prognosis of diabetic foot ulcers.
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