Abstract
Background
Early diagnosis and prognosis evaluation are of great significance to HEV-related acute liver failure (HEV-ALF) patients
Methods
We collected serum samples from 200 health controls (HCs), 200 patients with acute hepatitis E (AHE) and 200 HEV-ALF patients to evaluate serum exosome-derived carbamoyl phosphate synthase 1 (CPS1) levels and determine its diagnostic and prognostic value.
Results
The exosome-derived CPS1 levels in the HEV-ALF group were significantly higher than those in the AHE and HCs groups. The AUC of exosome-derived CPS1 to predict the occurrence of HEV-ALF was 0.850 (0.811-0.883). Both logistical regression and orthogonal partial least squares discriminant analysis (OPLS-DA) showed that exosome-derived CPS1 is independent risk factor for HEV-ALF. The exosome-derived CPS1 levels were positively correlated with organ failure, and the outcomes in HEV-ALF patients. The exosome-derived CPS1 levels in the worsening group wer e significantly higher than those in the fluctuating and the improving groups. The AUC of serum exosome-derived CPS1 to predict 30-day mortality was 0.829 (0.770-0.879), which was significantly greater than that of the Child-Pugh, KCH, and MELD model.
Conclusions
The level of serum exosome-derived CPS1 might serve as promising diagnostic and prognostic biomarker for HEV-ALF patients, which may provide better guidance for the diagnosis, prognosis and treatment of HEV-ALF patients.
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