JOURNAL ARTICLE

Soluble receptor for advanced glycation end products in critically ill patients and its associations with other clinical markers and 28-day mortality

Yanzi Cheng, Jiwen Zhong, Yang Xiang, Fan Zeng, Dehong Cai, Ling Zhao
Clinical Interventions in Aging 2014, 9: 1981-6
25429209

PURPOSE: To investigate the possible associations between serum levels of soluble receptor for advanced glycation end products (sRAGE) and specific clinical markers and prognosis in critically ill patients diagnosed with stress hyperglycemia.

PATIENTS AND METHODS: A total of 70 critically ill patients and 25 normal controls were recruited for this study. Serum levels of sRAGE and advanced glycation end products (AGEs) were determined using enzyme-linked immunosorbent assay. Additional data on other clinical markers were obtained from patient records in the intensive care unit. Comparisons of sRAGE and AGEs levels between groups were assessed by t-test. The relationships between sRAGE and other clinical markers were assessed by Pearson's correlation analyses and multiple linear regression analyses. Risk factors for prognosis, such as 28-day mortality were analyzed using logistic regression analysis.

RESULTS: Serum sRAGE and AGEs levels were significantly higher in critically ill patients, compared to normal controls (P<0.05). The increase in serum sRAGE levels was significantly correlated with AGEs levels, interleukin-6 levels, and the sequential organ failure assessment score (P<0.01). Using multiple linear regression analysis, the association between AGEs and sRAGE remained significant after adjustment of other clinical factors. However, there were no significant correlations between sRAGE levels and patient outcome in these critically ill patients.

CONCLUSION: Serum sRAGE levels were significantly elevated in critically ill patients and positively correlated with higher AGEs levels, but sRAGE levels were not associated with increased mortality, suggesting sRAGE levels are not a predictor of prognosis in critically ill patients.

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