Gastric volume reduction via mechanical restriction

Gastric volume reduction via mechanical restriction does not refer to a specific molecule, receptor, enzyme, or protein, but rather describes a class of physical interventions—including surgical and endoscopic procedures—that reduce the functional size or distensibility of the stomach. These interventions aim to restrict food intake by limiting how much food can be accommodated in the stomach at one time. Common examples include sleeve gastrectomy, adjustable gastric banding, endoscopic sleeve gastroplasty, and other restrictive bariatric devices. The primary effect is mechanical—reducing stomach capacity leads to earlier satiation during meals. However, these procedures also have secondary effects on gastrointestinal hormones such as GLP‑1 and PYY that further promote satiety and may improve metabolic parameters. The precise mechanisms underlying their long-term efficacy are still being studied; they likely involve both physical restriction and complex neuro-hormonal changes related to appetite regulation. Because this entry does not correspond to an individual molecular target but rather describes an interventional approach or device class for obesity treatment, it should not be considered a canonical therapeutic target in the sense typically used for drug discovery databases.

Other names

Gastric restrictionMechanical gastric restrictionGastric volume-restriction bariatric deviceRestrictive bariatric procedure