gut microbiome: nootropics and compounds | sci-wiki

Dihydroberberine

Dihydroberberine (DHB) is a reduced, or hydrogenated, form of berberine; basically the same molecule with two extra hydrogen atoms tacked on. Once it hits the gut it gets converted right back to berberine, so you end up with all the familiar berberine effects (blood sugar control, better lipids, AMPK activation) but from a much smaller dose. The whole reason DHB exists is absorption. Plain berberine is notoriously hard to get into the bloodstream, so DHB is the clever workaround. Think of it as the same engine with a better fuel line; nothing new downstream, just far more of it actually reaching your cells. People reach for it for the same goals as berberine: steadier blood sugar, improved insulin sensitivity, healthier cholesterol and triglycerides, and that "exercise in a pill" AMPK effect on the cell's energy machinery.

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Supplement

Dragon Fruit

Dragon fruit (pitaya) is the fruit of several climbing cactus species in the Hylocereus/Selenicereus genus. The red-fleshed types are rich in betalains (betacyanins), the same pigment family that colors beets, alongside soluble and insoluble fiber, some vitamin C, magnesium, and tiny omega-rich seeds. It is eaten mostly as a whole food; its bioactive draw is the betalain antioxidants and the prebiotic fiber, not any single concentrated drug-like compound.

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Antiviral

Monolaurin

Monolaurin (glycerol monolaurate, GML) is the monoglyceride of lauric acid, a medium-chain fatty acid abundant in coconut oil and human breast milk. It's a surfactant-type molecule that disrupts the lipid membranes of enveloped viruses and gram-positive bacteria, and it also blunts toxin production in Staphylococcus aureus. It's sold as a dietary supplement, often as sn-1 monolaurin pellets, for antimicrobial and immune support; the bulk of the evidence is still in vitro.

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Neurosteroid

Epipregnanolone

Epipregnanolone (3beta-hydroxy-5beta-pregnan-20-one) is an endogenous neurosteroid and the fourth stereoisomer of tetrahydroprogesterone, distinguished from allopregnanolone (3alpha,5alpha), pregnanolone (3alpha,5beta), and sepranolone (3beta,5alpha) by its combined 3beta-hydroxyl group and 5beta (cis) ring fusion. It is a ring A-reduced metabolite of progesterone that, unlike the sedative potentiators allopregnanolone and pregnanolone, was classically characterized as a selective antagonist at the neurosteroid modulatory site of the GABA-A receptor (the brain's principal inhibitory ion channel), blocking their potentiation without altering the response to GABA itself. Its 3-sulfate ester is a negative allosteric modulator of the NMDA receptor (a glutamate-gated excitatory channel), and the parent steroid is also a potent blocker of CaV3.2 T-type calcium channels, giving it a profile that is unusually distinct from its potentiating sister isomers. Present at low concentrations in human plasma, especially around parturition, and producible by human gut bacteria, epipregnanolone is studied primarily as a pharmacological tool and a scaffold for neurosteroid drug design rather than as a therapeutic or supplement.

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