Metabolism: nootropics and compounds | sci-wiki

JXL069

JXL069 is an experimental mitochondrial pyruvate carrier (MPC) inhibitor developed in the University of California, Los Angeles hair-biology program as a novel metabolic approach to hair loss [1][2]. By blocking pyruvate's entry into mitochondria, it pushes hair follicle stem cells toward glycolysis and lactate production, the metabolic switch that wakes these dormant cells and drives a new hair growth cycle [2]. It is closely related to PP405, a topical clinical candidate from the same line of research now advancing through trials for pattern hair loss, although JXL069 itself is sold as a research chemical [3].

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Supplement

Biotin

Biotin, also known as vitamin B7 (and historically as vitamin H), is a water-soluble B vitamin that the body needs as a coenzyme for several key metabolic enzymes. It acts as an essential cofactor for carboxylase enzymes involved in the metabolism of fats, carbohydrates, and amino acids [1]. True deficiency is rare because biotin is widespread in foods and is also made by gut bacteria, but it is a popular dietary supplement, most often marketed for hair, skin, and nail health despite limited supporting evidence in people who are not deficient [2]. High-dose biotin can also interfere with common laboratory blood tests [4].

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Flavonoid

EGCG

EGCG (epigallocatechin gallate) is the most abundant and most studied catechin in green tea, a flavonoid polyphenol that accounts for much of the leaf's reputation for health. It is a strong antioxidant and metabolic modulator that shows up in the research on fat oxidation, cardiovascular and metabolic health, inflammation, and longevity. Most of its effects are hormetic (a mild stress the body adapts to), and the honest catch is that isolated high-dose EGCG on an empty stomach carries a rare liver-injury signal, so it is best taken with food.

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Thyroid

Sobetirome

Sobetirome, also known as GC-1, is a synthetic thyromimetic, a drug designed to mimic thyroid hormone while selectively activating the beta subtype of the thyroid hormone receptor. It was first developed to lower cholesterol without the heart-related effects of natural thyroid hormone, and it is now studied mainly for its ability to promote remyelination in the central nervous system. It remains an investigational compound and is not an approved medicine.

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Corticosteroid

Dexamethasone

Dexamethasone is a synthetic fluorinated glucocorticoid, a class of corticosteroid hormone valued for its potent anti-inflammatory and immunosuppressive effects. First introduced in the late 1950s, it is a long-acting relative of cortisol that is many times more potent than the body's natural glucocorticoids while causing little salt and water retention. It is prescribed for a broad range of conditions, including allergic and autoimmune disorders, swelling of the brain, croup, certain cancers, and, since 2020, severe COVID-19. Dexamethasone is a widely available generic medicine and appears on the World Health Organization's list of essential medicines.

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Gastrointestinal

Orlistat

Orlistat is a weight-loss medication that works in the gut rather than the brain, reducing the amount of dietary fat the body absorbs. It belongs to the class of lipase inhibitors, blocking the enzymes that break down fat so that a portion of the fat eaten passes through undigested. Developed by Hoffmann-La Roche and approved in 1999, it is sold as the prescription product Xenical and, at a lower strength, as the over-the-counter product Alli, and it remains one of the few medicines specifically approved for long-term weight management.

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Supplement

6-Paradol

6-Paradol is a pungent phenolic compound found in ginger and grains of paradise, closely related to gingerols and shogaols. It has been studied for thermogenesis and activation of brown adipose tissue (brown fat, which burns energy to produce heat), along with metabolic and antioxidant effects. It is generally treated as a food-derived supplement ingredient rather than a drug.

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Peptide

Desacyl Ghrelin

Desacyl ghrelin is the unacylated form of the hunger hormone ghrelin; it is the same peptide chain but without the octanoyl (a fatty-acid) group that active ghrelin carries on one of its amino acids. That missing fatty acid means it does not activate the classic ghrelin receptor (GHS-R1a) that drives hunger and growth-hormone release, so it behaves very differently from acylated ghrelin. It circulates as the majority of total ghrelin in blood and is studied for its own distinct metabolic, appetite, and cardiovascular effects.

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Cannabinoid

Tetrahydrocannabivarin

Tetrahydrocannabivarin (THCV) is a naturally occurring, minor phytocannabinoid found in Cannabis sativa and the propyl homologue of delta-9-tetrahydrocannabinol (THC), differing only in a shortened three-carbon side chain [1][2]. It is pharmacologically distinct from THC: at low doses it behaves as a cannabinoid CB1 receptor antagonist that tends to suppress appetite, while at higher doses it can act as a CB1 agonist, and it is separately a high-affinity partial agonist at CB2 receptors [1][3]. Preclinical work and a small human trial point to benefits in glycaemic control, energy metabolism, neuroprotection and neuroinflammation, which has fuelled its reputation as a metabolically favourable, non-appetite-stimulating cannabinoid [4][5][6].

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