ArticleNan fang yi ke da xue xue bao = Journal of Southern Medical University2026
[Establishment of an gastric dysfunction and depression comorbidity model simulating clinical etiology in mice using a combined stress protocol].
Article in Nan fang yi ke da xue xue bao = Journal of Southern Medical University, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
objectivesTo establish a mouse model with the comorbidity of gastric dysfunction and depression mimicking clinical onset of the condition.
methodsThirty male C57BL/6J mice were randomly divided into control, 14-day model, and 28-day model groups (
resultsCompared with control mice, the mice in 14-day model group exhibited reduced body weight, food intake and gastric motility amplitude with delayed gastric emptying but showed no significant depression-like behaviors; in 28-day model group, these changes were further exacerbated, and significant depression-like behaviors were observed. Compared with 14-day model group, the 28-day model group displayed severer gastric dysfunction and depression-like behaviors. Compared with control group, exposure to complex stresses for 14 days significantly increased serum CRF and decreased BDNF, gastrin and motilin levels, increased gastric NOS and decreased gastric AChE level, which were worsened after a 28-day exposure. HE staining showed no obvious histological changes in the gastric mucosa in the two model groups.
conclusionsCombined stresses induced by tail clamping, cold-saline gavage and irregular feeding for 28 days can induced the comorbidity of gastric dysfunction and depression in mice, and abnormal changes in serum neurotransmitters, brain-gut peptides and vagus activity may partly participate in the pathogenesis of the comorbidity.
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