Inhibition of cardiac hypertrophy by probiotic-fermented purple sweet potato yogurt in spontaneously hypertensive rat hearts

  • Authors:
    • Pei-Pei Lin
    • You-Miin Hsieh
    • Wei-Wen Kuo
    • Chien-Chung Lin
    • Fuu-Jen Tsai
    • Chang-Hai Tsai
    • Chih-Yang Huang
    • Cheng-Chih Tsai
  • View Affiliations

  • Published online on: October 12, 2012     https://doi.org/10.3892/ijmm.2012.1154
  • Pages: 1365-1375
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Abstract

Cardiovascular hypertrophy is a common feature of hypertension and an important risk factor for heart damage. The regression of cardiovascular hypertrophy is currently considered an important therapeutic target in reducing the omplications of hypertension. The aim of this study was to investigate the inhibition of cardiac hypertrophy by probiotic-fermented purple sweet potato yogurt (PSPY) with high γ-aminobutyric acid (GABA) content in spontaneously hypertensive rat (SHR) hearts. Six-week-old male SHRs were separated randomly and equally into 4 experimental groups: sterile water, captopril and 2 PSPY groups with different doses (10 and 100%) for 8 weeks. The changes in myocardial architecture and key molecules of the hypertrophy-related pathway in the excised left ventricle from these rats were determined by histopathological analysis, hematoxylin and eosin staining and western blot analysis. Abnormal myocardial architecture and enlarged interstitial spaces observed in the SHRs were significantly decreased in the captopril and PSPY groups compared with the sterile water group. Moreover, the increases in atrial natriuretic peptide, B-type natriuretic peptide, phosphorilated protein kinase Cα and calmodulin-dependent protein kinase II levels in the left ventricle were accompanied by hypertension and increases in phosphorylated extracellular signal-regulated kinase 5 activities with enhanced cardiac hypertrophy. However, the protein levels of the hypertrophic-related pathways were completely reversed by the administration of PSPY. PSPY may repress the activation of ANP and BNP which subsequently inhibit the dephosphorylation of the nuclear factor of activated T-cells, cytoplasmic 3 and ultimately prevent the progression of cardiac hypertrophy.
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December 2012
Volume 30 Issue 6

Print ISSN: 1107-3756
Online ISSN:1791-244X

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Spandidos Publications style
Lin P, Hsieh Y, Kuo W, Lin C, Tsai F, Tsai C, Huang C and Tsai C: Inhibition of cardiac hypertrophy by probiotic-fermented purple sweet potato yogurt in spontaneously hypertensive rat hearts. Int J Mol Med 30: 1365-1375, 2012
APA
Lin, P., Hsieh, Y., Kuo, W., Lin, C., Tsai, F., Tsai, C. ... Tsai, C. (2012). Inhibition of cardiac hypertrophy by probiotic-fermented purple sweet potato yogurt in spontaneously hypertensive rat hearts. International Journal of Molecular Medicine, 30, 1365-1375. https://doi.org/10.3892/ijmm.2012.1154
MLA
Lin, P., Hsieh, Y., Kuo, W., Lin, C., Tsai, F., Tsai, C., Huang, C., Tsai, C."Inhibition of cardiac hypertrophy by probiotic-fermented purple sweet potato yogurt in spontaneously hypertensive rat hearts". International Journal of Molecular Medicine 30.6 (2012): 1365-1375.
Chicago
Lin, P., Hsieh, Y., Kuo, W., Lin, C., Tsai, F., Tsai, C., Huang, C., Tsai, C."Inhibition of cardiac hypertrophy by probiotic-fermented purple sweet potato yogurt in spontaneously hypertensive rat hearts". International Journal of Molecular Medicine 30, no. 6 (2012): 1365-1375. https://doi.org/10.3892/ijmm.2012.1154