Hormonal
GIP receptor antagonism promotes weight loss and protects against diet-induced obesity, potentially by enhancing leptin sensitivity in the hypothalamus and reducing lipid storage in adipose tissue.
Research indicates that blocking the GIP receptor (antagonism) can also lead to weight loss, possibly by improving how your body responds to leptin and reducing fat storage. This is an emerging area of treatment, with some drugs in clinical trials combining GIP antagonism with GLP-1 agonism for enhanced effects.
Gipr knockout mice fed a HFD show protection against obesity and insulin resistance... Various GIP or GIPR pharmacologic inhibition strategies... have all been shown to protect against HFD-induced weight gain... One study linked the anti-obesity effect of GIPR antagonism to leptin sensitivity in the hypothalamus... GIP mediates the uptake, storage and synthesis of fatty acids and triglycerides in adipocytes... inhibition of GIPR in adipose tissue interferes with its lipid buffering ability
Why this rating
Strong preclinical evidence (knockout mice, antibodies) but clinical data is emerging (Phase 1 for maritide) and mechanisms are still being clarified.
Source
The role of GIPR in food intake control
Paula-Peace James-Okoro et al. · Frontiers in Endocrinology · 2025
DOI 10.3389/fendo.2025.1532076
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