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Chinese Journal of Experimental and Clinical Infectious Diseases(Electronic Edition) ›› 2024, Vol. 18 ›› Issue (04): 222-228. doi: 10.3877/cma.j.issn.1674-1358.2024.04.005

• Research Articles • Previous Articles     Next Articles

Changes of serum microRNA-142-3p and phosphoinositide 3-kinase levels in patients with acute pancreatitis and predictive analysis of the risk of concurrent abdominal infection

Xiangni Bai1, Jujun Sun1, He, Xie1, Hongbin Li1,()   

  1. 1.Medical Laboratory Department, Xidian Group Hospital, Xi’an 710077, China
  • Received:2024-03-03 Online:2024-08-08 Published:2024-11-01
  • Contact: Hongbin Li

Abstract:

Objective

To investigate the changes of serum microRNA-142-3p (miR-142-3p) and phosphoinositide 3-kinase (PI3K) levels in patients with acute pancreatitis (AP), and to evaluate the value in the assessment of intrabitoneal infection (IAI) by nomogram analysis.

Methods

Total of 186 patients with AP admitted to the Medical Laboratory Department, Xidian Group Hospital from July 2021 to December 2023 were selected as observation group, and 93 healthy subjects during the same period were selected as control group. Serum miR-142-3p and PI3K levels were detected for research objects in both groups. The risk factors of AP patients complicated with IAI were analyzed by Logistic regression model. The evaluation value of miR-142-3p and PI3K in AP complicated with IAI was analyzed by nomogram, and decision curve analysis (DCA) was performed.

Results

The serum level of miR-142-3p of patients in observation group was lower than that of control group (t = 8.181, P < 0.001), and the level of PI3K in observation group was higher than that of control group (t = 16.605, P < 0.001), both with significant differences. The levels of white blood cell count (t = 2.265, P = 0.026), C-reactive protein (t = 3.239, P = 0.002), procalcitonin (t = 2.780,P = 0.007) and PI3K (t = 5.073, P < 0.001) of patients complicated with IAI were higher than those of non-IAI patients, and miR-142-3p was lower than that of non-IAI patients (t = 3.693, P < 0.001), all with significant differences. C-reactive protein (OR = 2.831, 95%CI: 1.563-5.127, P = 0.022), procalcitonin (OR = 2.845, 95%CI:1.472-5.498, P = 0.016) and PI3K (OR = 3.210, 95%CI: 1.708-6.032, P < 0.001) were all independent risk factors for AP complicated with IAI and miR-142-3p was an independent protective factor for AP complicated with IAI(OR = 0.350, 95%CI: 0.162-0.757, P < 0.001). The results of the nomogram prediction model showed that PI3K and miR-142-3p had high predictive value for AP complicated with IAI, and the consistency indexes were 0.743 and 0.707,respectively. The calibration curve analysis showed that the prediction model predicted risks of AP complicated with IAI and actual risk of occurrence, and the mean absolute error was 0.026, and it was within the acceptable range.Within the threshold range of 0.1-0.5, the net benefit rate of combined assessment of AP complicated with IAI was superior to that of PI3K and miR-142-3p alone.

Conclusions

AP patients show low expression of miR-142-3p and high expression of PI3K, and the expression levels are independent influencing factors for concurrent IAI. Clinically,the risk of AP patients with IAI can be evaluated by detecting the levels of the two indexes.

Key words: Acute pancreatitis; MicroRNA-142-3p, Phosphoinositide 3-kinase, Intra-abdominal infection, Nomogram analysis

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