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Chinese Journal of Critical Care Medicine(Electronic Edition) ›› 2016, Vol. 09 ›› Issue (05): 315-320. doi: 10.3877/cma.j.issn.1674-6880.2016.05.006

Special Issue:

• Original Article • Previous Articles     Next Articles

Effect of xuebijing injection on tubular apoptosis and related proteins expression in rat model of sepsis-induced acute kidney injury

Xuedong Sun1,(), Yihe Yan1, Fang Liu2, Weiwei Chu1, Yiting Zhang1, Lijun Ying1   

  1. 1. Department of Intensive Medicine, Shaoxing People's Hospital, Shaoxing 312000, China
    2. Department of Pathology, Shaoxing People's Hospital, Shaoxing 312000, China
  • Received:2016-06-05 Online:2016-10-01 Published:2016-10-01
  • Contact: Xuedong Sun
  • About author:
    Corresponding author: Sun Xuedong, Email:

Abstract:

Objective

To investigate the effect of early application of xuebijing in rat model of sepsis-induced acute kidney injury by observing tubular apoptosis, B cell lymphoma 2 (Bcl-2) and Bcl-2 associated X protein (Bax) expressions.

Methods

Fifty-four male SD rats were randomly divided into three groups: Sham group (n = 18), cecal ligation and puncture (CLP) group (n = 18), and xuebijing (CLP + XBJ) group (n = 18). After rat model establishment, 12, 24, 48 h were regarded as observation time points, and each group was accordingly divided into 3 subgroups (6 rats per subgroup). Creatine clearance (CrCl), renal blood perfusion unit, renal pathological changes and renal tubular injury score were measured; renal tubular cell apoptosis was determined by terminal-deoxynucleoitidyl transferase mediated nick end labeling (TUNEL) method and integrated optical density (IOD) was calculated. The expressions of Bcl-2 and Bax were detected by Western-blotting.

Results

The CrCl and renal blood perfusion unit in all three groups had significant differences at each time point (F = 6.405, 18.821; P < 0.05). The CrCl and renal blood perfusion unit in the CLP + XBJ group were significantly higher than that in the CLP group [(2.1 ± 0.5) ml/min/100 g vs. (1.1 ± 0.3) ml/min/100 g, (159 ± 38) BPU vs. (79 ± 32) BPU; all P < 0.05]. The renal tubular damage scores in all three groups had significant differences at each time point (F = 5.461, P < 0.05). Tubular damage scores decreased significantly in the CLP + XBJ group compared with the CLP group at 24, 48 h [(1.6 ± 0.5) vs. (2.8 ± 0.8), (1.8 ± 0.8) vs. (3.6 ± 0.6); all P < 0.05]. The IOD had a significant difference in all three groups at each time point (F = 7.259, P < 0.05). In addition, the IOD in the CLP + XBJ group was much lower than that in the CLP group at each time point [(26.6 ± 6.9) vs. (34.4 ± 5.0), (38.2 ± 5.3) vs. (48.0 ± 5.8), (37.6 ± 2.2) vs. (53.8 ± 6.7); all P < 0.05]. Meanwhile, xuebijing injection could increase Bcl-2 expression, inhibit Bax expression, and keep balance of Bcl-2/Bax ratio. There were significant differences of Bcl-2 [(1.30 ± 0.09) vs. (0.76 ± 0.09), (2.12 ± 0.38) vs. (0.51 ± 0.07); all P < 0.05] and Bax [(1.19 ± 0.37) vs. (1.95 ± 0.90), (1.48 ± 0.15) vs. (2.69 ± 0.39); all P < 0.05] in the CLP + XBJ group compared with the CLP group at 24 and 48 h.

Conclusion

Early application of xuebijing might improve renal dysfunction and the pathological changes, reduce the tubular cell apoptosis, keep balance of Bcl-2/Bax ratio and relieve renal impairment in rat model of sepsis-induced acute kidney injury.

Key words: Sepsis, Apoptosis, Xuebijing, Acute kidney injury

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