The intestinal microbiota modulates the visceral sensitivity involved in IBS induced by restraint combined with tail clustering.

Objective: To compare three common stimuli that induce emotional stress to identify the optimal method for establishing an animal model that aligns with the clinical pathogenesis of irritable bowel syndrome (IBS) and to explore the gut microbiota mechanisms underlying IBS development.

Methods: Thirty-six SPF-grade female Kunming mice were randomly divided into four groups: the normal control (NC) group, the restraint stress (BM) group, the tail clamp stress (CTM) group, and the restraint combined with tail clamp stress (BCTM) group, with 9 mice in each group. The NC group was fed normally without any stimulation.

[A case of progressive ossifying myositis caused by gene mutation].

A 2-year-and-10-month-old boy presented with multiple masses in the neck and chest for over 3 months. The child had a history of unstable walking, with hard lumps visible at the injury sites after falls, which would resolve on their own. Following a recent injury, a mass was discovered in the posterior neck, protruding above the skin surface and accompanied by limited joint movement.