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1 results

  • Changes of ultrastructure and downregulation of heat shock protein 70 and fibroblast growth factor 2 in gastric mucosa of rats with depressive-like behaviour

  • Gonglin Hou, Mingming Tang, Linlin Yan, Mingming Wang
  • Journal:
    Acta Neuropsychiatrica / Volume 24 / Issue 3 / June 2012
    Published online by Cambridge University Press:
    24 June 2014, pp. 160-165

  • Objective: To understand the underlying mechanism of gastric symptoms in patients with depressive disorder.

    Methods: This study tested in the rat depression model evoked with chronic mild stress whether the microstructure gastric mucosa is injured using scanning electronic microscopy and transmission electronic microscopy (TEM). In addition, the expression of heat shock protein 70 (HSP70) and fibroblast growth factor 2 (FGF2) proteins in the gastric mucosa were measured by Western blotting.

    Results: We found that the gastric epithelial cells were ruptured and the gastric pits were widened in rats with depression. The amount of mucous granules was also reduced in the surface mucous cells. Moreover, parietal cells became active, and the secretory canaliculi were magnified. Expression of HSP70 and FGF2 was reduced in the gastric mucosa.

    Conclusions: These findings suggested that gastric symptoms in rats with depressive-like behaviour were caused by the injury of the gastric mucosa, AQ1 and HSP70 and FGF2 may be key molecules in the pathogenesis.