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Article

Effects of sepsis on the metabolism of sphingomyelin and cholesterol in mice with liver dysfunction

  • Authors:
    • Jiaqi Li
    • Kun Xia
    • Mingdi Xiong
    • Xi Wang
    • Nianlong Yan
  • View Affiliations / Copyright

    Affiliations: Department of Biochemistry and Molecular Biology, School of Basic Medical Science, Nanchang University, Nanchang, Jiangxi 330006, P.R. China, Basic Medical Experiments Center, Nanchang University, Nanchang, Jiangxi 330006, P.R. China
  • Pages: 5635-5640
    |
    Published online on: September 29, 2017
       https://doi.org/10.3892/etm.2017.5226
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Abstract

Sepsis is characterized by a severe inflammatory response to infection. With the spread of sepsis, various tissues, including the lungs, liver and kidney, may be damaged. This may finally develop into multiple organ dysfunction syndrome. Sphingomyelin and cholesterol are two main lipids involved in sepsis. The metabolism of sphingomyelin and cholesterol in the livers of mice with sepsis needs to be clarified. To achieve this, the present study intraperitoneally injected mice with PBS, lipopolysaccharide (LPS; 10 mg/kg) and LPS + pyrrolidine dithiocarbamate (PDTC; 30 mg/kg). Subsequently, sphingomyelin and cholesterol content were measured using kits, the sphingomyelin synthase (SMS) activity was measured using thin layer chromatography, and the expression levels of SMS1 and 2, hydroxy‑3‑methylglutaryl‑coenzyme A reductase (HMGCR), ATP binding cassette subfamily A member 1 (ABCA1), scavenger receptor class B member 1 (SR‑B1) and apolipoprotein A1 (Apo A1) were determined by western blotting in the livers of mice. Results demonstrated that, in the LPS group, sphingomyelin and cholesterol content was significantly increased (P<0.001; n=6), the SMS activity significantly enhanced (P<0.001; n=6), the expression levels of SMS2, HMGCR, ABCA1 and SR‑B1 were augmented (P<0.05; n=6), and the expression of Apo A1 was decreased (P<0.05; n=6), whereas SMS1 level only slightly increased with no statistical significance (P>0.05; n=6), compared to the levels in the control group. However, PDTC was able to attenuate these alterations. These results indicated that sphingomyelin and cholesterol content may increase in the liver dysfunction of sepsis by increasing the expression of SMS2, HMGCR, SR‑B1 and ABCA1, and downregulating Apo A1.
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Copy and paste a formatted citation
Spandidos Publications style
Li J, Xia K, Xiong M, Wang X and Yan N: Effects of sepsis on the metabolism of sphingomyelin and cholesterol in mice with liver dysfunction . Exp Ther Med 14: 5635-5640, 2017.
APA
Li, J., Xia, K., Xiong, M., Wang, X., & Yan, N. (2017). Effects of sepsis on the metabolism of sphingomyelin and cholesterol in mice with liver dysfunction . Experimental and Therapeutic Medicine, 14, 5635-5640. https://doi.org/10.3892/etm.2017.5226
MLA
Li, J., Xia, K., Xiong, M., Wang, X., Yan, N."Effects of sepsis on the metabolism of sphingomyelin and cholesterol in mice with liver dysfunction ". Experimental and Therapeutic Medicine 14.6 (2017): 5635-5640.
Chicago
Li, J., Xia, K., Xiong, M., Wang, X., Yan, N."Effects of sepsis on the metabolism of sphingomyelin and cholesterol in mice with liver dysfunction ". Experimental and Therapeutic Medicine 14, no. 6 (2017): 5635-5640. https://doi.org/10.3892/etm.2017.5226
Copy and paste a formatted citation
x
Spandidos Publications style
Li J, Xia K, Xiong M, Wang X and Yan N: Effects of sepsis on the metabolism of sphingomyelin and cholesterol in mice with liver dysfunction . Exp Ther Med 14: 5635-5640, 2017.
APA
Li, J., Xia, K., Xiong, M., Wang, X., & Yan, N. (2017). Effects of sepsis on the metabolism of sphingomyelin and cholesterol in mice with liver dysfunction . Experimental and Therapeutic Medicine, 14, 5635-5640. https://doi.org/10.3892/etm.2017.5226
MLA
Li, J., Xia, K., Xiong, M., Wang, X., Yan, N."Effects of sepsis on the metabolism of sphingomyelin and cholesterol in mice with liver dysfunction ". Experimental and Therapeutic Medicine 14.6 (2017): 5635-5640.
Chicago
Li, J., Xia, K., Xiong, M., Wang, X., Yan, N."Effects of sepsis on the metabolism of sphingomyelin and cholesterol in mice with liver dysfunction ". Experimental and Therapeutic Medicine 14, no. 6 (2017): 5635-5640. https://doi.org/10.3892/etm.2017.5226
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