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KMID : 1188320140080040445
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Gut and Liver
2014 Volume.8 No. 4 p.445 ~ p.451
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CD64 Expression Is Increased in Patients with Severe Acute Pancreatitis: Clinical Significance
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Hao Zhang
Xian-Long Ling
Yu-Yun Wu
Mu-Han Lu
Hong Guo
Peng-Bin Zhang
Xiao-Yan Zhao
Shi-Ming Yang
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Abstract
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Background/Aims:Upregulated CD64 expression on neutrophils is the most useful marker for acute bacterial infections and systemic inflammation. However, it is unknown whether CD64 is involved in the pathogenesis of acute pancreatitis (AP). This study was designed to determine whether CD64 is implicated in severe acute pancreatitis (SAP), and thus, is a suitable marker for SAP.
Methods:SAP was induced in rats with an intraperitoneal injection of L-arginine. CD64 expression in the rat pancreas was determined by quantitative real-time polymerase chain reaction (qRT-PCR) and immunohistochemistry. Additionally, the CD64 mRNA expression in peripheral blood leukocytes from 21 patients with mild acute pancreatitis (MAP) and 10 patients with SAP was investigated at the time of admission and during remission by qRT-PCR.
Results:CD64 mRNA and protein expression in the pancreas was significantly higher in rats with SAP, compared to the controls. The CD64 expression was higher in the patients with SAP than in the patients with MAP. During remission, CD64 mRNA decreased in both the MAP and SAP patients. The area under the curve of CD64 expression for the detection of SAP was superior to both the Ranson and the Acute Physiology and Chronic Health Evaluation II scores.
Conclusions:The CD64 level was significantly increased in correlation with the disease severity in SAP and may act as a useful marker for predicting the development of SAP.
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KEYWORD
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Severe acute pancreatitis, CD64, Leukocytes
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