FIGURE 9 4 Discussion GHK and its bioactive form, GHK-Cu, have been demonstrated to be safe and effective in various cellular, tissue, and animal models ( In IBD, the expression levels of tight junction proteins such as ZO-1 and Occludin, is generally suppressed, leading to increased intestinal permeability, enhanced pathogen infiltration, and exacerbated inflammatory responses ( in vivo and in vitro experimental models revealed that GHK-Cu upregulates the expression level of Occludin and ZO-1, suggesting its potential role in promoting intestinal barrier repair
[DOI] [PMC free article] [PubMed] [Google Scholar] 81.Hariri M., Djazayery A., Djalali M., Saedisomeolia A., Rahimi A., Abdolahian E
This may be a temporary side effect, or it may be permanent
Some patients find success by rotating medicationspausing semaglutide and switching to tirzepatide (a dual GLP-1/GIP agonist), which engages additional appetite and metabolic pathways, can reignite weight loss in sensitive patients