Abstract
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Diabetic Foot Disease: Grading Inflammation by Apolipoprotein A-I, C-Reactive Protein and Serum Amyloid A
by Weiling Wang, Yan Zhang, Yonggan Liao, Jun Wu, Lixia Zhou, Yijun Tang, Yang Cao, Erwin Metzmann, Rongfang Wang
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Background: The different grading systems for diabetic foot disease pose a challenge in clinical decision making because each system fails to accurately reflect the individual course of disease progression. This study attempts to identify laboratory measurements for classifying diabetic foot disease to guide clinical treatment.
Methods: The sera of 111 clinically graded diabetic foot patients were measured for several laboratory parameters including serum amyloid A (SAA), C-reactive protein (CRP), and apo A-I. By using the molar sum of CRP and SAA and then dividing by the molarity of apo A-I, an acute phase index was introduced to assess the inflammatory status of the patients.
Results: Based on a newly defined acute phase index (API), diabetic foot patients were classified into 3 distinct groups that provide a diagnostic tool complementing the established Texas grading system for clinical decision making.
Conclusions: The integration of the serum concentrations of SAA, CRP and apo A-I into an acute phase index (API) offers an opportunity to triage diabetic foot patients who may benefit from personalized medicine.
DOI: 10.7754/Clin.Lab.2014.140209
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