This mouse study demonstrates that dietary copper deficiency damages colonic barrier integrity, reduces protective mucin-producing goblet cells, increases pro-inflammatory cytokines, and causes dysbiosis with reduced beneficial bacteria. The researchers used intraperitoneal copper sulfate as a rescue intervention (results cut off). The findings establish copper as critical for gut health and suggest copper-peptide compounds like GHK-Cu could address both the nutritional and barrier-healing aspects of copper deficiency-related gut dysfunction.
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Copper deficiency impairs colonic barrier and raises inflammation in mice; GHK-Cu may support gut integrity in copper-depleted patients.