Study wrapper · #620
Morphological Changes in the Large Intestine of Rats Subjected to Chronic Restraint Stress and Treated with Selank.
Editor's note
In male Wistar rats subjected to restraint stress, researchers reported that Selank, a synthetic tuftsin-analog peptide given before stress, reduced stress-related changes in the colon wall. Stressed rats showed signs of atrophy, inflammation, and altered mast-cell activity alongside elevated corticosterone; Selank was associated with lower corticosterone, fewer of these tissue changes, and faster adaptation. The findings extend Selank's stress-protective profile to gut tissue. This is a single preclinical model with histological and hormonal surrogate endpoints, small numbers, and a specific stress paradigm. These are preclinical findings; human data are needed before any clinical conclusions can be drawn about Selank and stress-related gut changes.
Plain-language abstract
Researchers studied Selank, a synthetic peptide, in male rats exposed to restraint stress (being briefly immobilized). Stress caused damage in the wall of the large intestine, including tissue wasting, inflammation, and changes in immune cells, along with a rise in the stress hormone corticosterone. Rats given Selank before stress had lower corticosterone, less intestinal damage, and quicker recovery. The authors attribute this to Selank's broad stress-protective effects. The abstract reports no adverse events. These are preclinical findings in rats; human studies would be needed before drawing any conclusions about Selank's effects on stress-related gut changes.