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Plasma adrenomedullin levels and nasopharyngeal carcinoma prognosis.
Clinica Chimica Acta; International Journal of Clinical Chemistry 2015 Februrary 3
BACKGROUND: Adrenomedullin has been identified as a tumor growth factor. However, few studies have reported its relationship with cancer survival. We evaluated the prognostic value of pretreatment plasma adrenomedullin levels in nasopharyngeal carcinoma (NPC).
METHODS: Plasma adrenomedullin levels of 258 NPC patients and 100 healthy controls were determined using enzyme-linked immunosorbent assay. Adverse event was defined as tumor progression or death from any cause during 5-year follow-up. The relationships between plasma adrenomedullin levels and 5-year mortality, adverse event, tumor-free survival and overall survival were evaluated using multivariate analysis.
RESULTS: Pretreatment plasma adrenomedullin levels were substantially higher in patients than in healthy subjects and were correlated highly with tumor classification, lymph node classification and tumor node metastasis stage positively. Adrenomedullin was identified as an independent predictor of 5-year mortality, adverse event, tumor-free survival and overall survival. Based on receiver operating characteristic curve analysis, pretreatment plasma adrenomedullin level had high predictive value for 5-year mortality and adverse event and had high diagnostic value for NPC.
CONCLUSIONS: Adrenomedullin may be a reliable biomarker for predicting the long-term prognosis of patients with NPC and also has potential diagnostic utility for NPC.
METHODS: Plasma adrenomedullin levels of 258 NPC patients and 100 healthy controls were determined using enzyme-linked immunosorbent assay. Adverse event was defined as tumor progression or death from any cause during 5-year follow-up. The relationships between plasma adrenomedullin levels and 5-year mortality, adverse event, tumor-free survival and overall survival were evaluated using multivariate analysis.
RESULTS: Pretreatment plasma adrenomedullin levels were substantially higher in patients than in healthy subjects and were correlated highly with tumor classification, lymph node classification and tumor node metastasis stage positively. Adrenomedullin was identified as an independent predictor of 5-year mortality, adverse event, tumor-free survival and overall survival. Based on receiver operating characteristic curve analysis, pretreatment plasma adrenomedullin level had high predictive value for 5-year mortality and adverse event and had high diagnostic value for NPC.
CONCLUSIONS: Adrenomedullin may be a reliable biomarker for predicting the long-term prognosis of patients with NPC and also has potential diagnostic utility for NPC.
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