Yes gut bacteria ferment fiber into SCFAs, which directly stimulate L-cells to release GLP-1
The theory of the origin of sleep which has gained the widest credence is the one that attributes it to anemia of the brain The idea behind this supposition has been that, as the day draws to an end, the circulatory mechanism becomes fatigued, the vasomotor center exhausted, the tone of the blood vessels deficient, and the energy of the heart diminished, and thus is the circulation to the cerebral arteries lessened. NATURE, May 5th, 1898

Research focus areas include: Neurogenesis and synaptogenic mechanisms Cognitive function and memory consolidation pathways Neuroprotection in models of brain injury and neurodegeneration Potentiation of HGF/c-Met signaling cascades Product Specifications Peptide content per capsule : 10 mg DIHEXA Capsule count : 30 Form: Stable research capsules optimized for compound integrity Purity : 99% (verified by independent third-party HPLC and mass spectrometry) Appearance : White to off-white powder encapsulated in size 0 vegetarian capsules Storage : Cool, dry place
Reference: Emerging Use of BPC-157 in Orthopaedic Sports Medicine: A Systematic Review (2024)
Transcriptomic analyses of laser capture microdissected neurons from postmortem human AD revealed that NFT-containing neurons expressed signaling pathways consistent with cellular senescence, including SCAPs, upreguled pro-survival and inflammatory pathways and downregulated cell death pathways (35)