pyruvate

Ethyl pyruvate is a simple aliphatic ester of pyruvic acid and has been shown to have robust neuroprotective effects via its anti-inflammatory, anti-oxidative, and anti-apoptotic functions.

Sodium dichloroacetate (BCA) , a specific inhibitor of pyruvate dehydrogenase kinase (PDK) with IC50 values of 183 and 80 μM for PDK2 and PDK4 respectively, has been shown to derepress a mitochondrial potassium-ion channel axis, trigger apoptosis in cancer cells, and inhibit tumor growth.

L-2-Phosphoglyceric acid (L-2-Phosphoglyceric acid disodium salt) is a glyceric acid which serves as the substrate in the ninth step of glycolysis. It is catalyzed by enolase into phosphoenolpyruvate (PEP), the penultimate step in the conversion of glucose to pyruvate.

Sodium phenylpyruvate (Phenylpyruvic acid, sodium salt) is a substrate for phenylpyruvate decarboxylase and phenylpyruvate tautomerase.

Shikonin (Anchusa acid) is a natural product, a TMEM16A chloride channel inhibitor (IC50=6.5 μM) and selective PKM2 inhibitor. Shikonin exhibits antitumor, anti-inflammatory and wound healing activities.

L-2-Phosphoglyceric acid disodium salt is a glyceric acid which serves as the substrate in glycolysis. It is catalyzed by enolase into phosphoenolpyruvate.

Fulvotomentoside B, a saponin derived from Lactobacillus flavus, displays hepatoprotective properties. It notably decreases serum glutamate pyruvate transaminase (SGPT) and triacylglycerol (GT) concentrations in mice subjected to hepatic injury induced by CCl₄, d-galactosamine (d-gal), and acetaminophen, while also significantly mitigating liver tissue damage [1].

Hydroxypyruvic acid is an intermediate in the metabolism of glycine, serine, and threonine. It is a substrate for serine-pyruvate aminotransferase and glyoxylate reductase/hydroxypyruvate reductase.

SAICAR is an intermediate of de novo purine nucleotide biosynthesis, activates pyruvate kinase isoform M2 (PKM2) in an isozyme-selective manner (EC50: 0.3 mM).

Sarmentosin significantly lowers the SGPT level of patients suffering from chronic viral hepatitis, and shows a suppressive effect on cell-mediated immune responses in mice. It shows a good effect in lowering serum glutamate-pyruvate transaminase.

DL-Serine is a non-essential amino acid and a natural ligand and allosteric activator of pyruvate kinase M2.

Alanine is a nonessential amino acid made in the body from the conversion of the carbohydrate pyruvate or the breakdown of DNA and the dipeptides carnosine and anserine. D-Alanine ((R)-Alanine) is a weak GlyR (inhibitory glycine receptor) and PMBA agonist, with an EC50 of 9 mM for GlyR.

Potassium 1-carboxyvinyl hydrogenphosphate (PEP-K) is involved in glycolysis and gluconeogeneis. In glycolysis, PEP is metabolized by Pyruvate Kinase to yield pyruvate. In plants, PEP is involved in the formation of aromatic amino acids as well as in the carbon fixation pathway.

Alkannin is a potent and specific tumor-specific pyruvate kinase-M2 (PKM2) inhibitor that does not inhibit PKM1 and pyruvate kinase-L (PKL). Alkannin is a potential anticancer agent [1].

Acetyl phosphate lithium potassium (Lithium potassium acetyl phosphate) is a compound involved in taurine and hypotaurine metabolism as well as pyruvate metabolism. Acetyl phosphate lithium potassiu is generated from sulfoacetaldehyde, converted to acetyl-CoA and acetate via phosphate acetyltransferase and acetate kinase respectively. Acetyl phosphate lithium potassiu is also an intermediate in pyruvate metabolism.

(S)-Malic acid ((S)-2-Hydroxysuccinic acid) is a tart-tasting organic dicarboxylic acid that plays a role in many sour or tart foods. Apples contain malic acid, which contributes to the sourness of a green apple. Malic acid can make a wine taste tart, although the amount decreases with increasing fruit ripeness. (wikipedia). In its ionized form malic acid is called malate. Malate is an intermediate of the TCA cycle along with fumarate. It can also be formed from pyruvate as one of the anaplerotic reactions. In humans, malic acid is both derived from food sources and synthesized in the body through the citric acid cycle or Krebs cycle which takes place in the mitochondria. Malate's importance to the production of energy in the body during both aerobic and anaerobic conditions is well established. Under aerobic conditions, the oxidation of malate to oxaloacetate provides reducing equivalents to the mitochondria through the malate-aspartate redox shuttle. During anaerobic conditions, where a buildup of excess of reducing equivalents inhibits glycolysis, malic acid's simultaneous reduction to succinate and oxidation to oxaloacetate is capable of removing the accumulating reducing equivalents. This allows malic acid to reverse hypoxia's inhibition of glycolysis and energy production. In studies on rats it has been found that only tissue malate is depleted following exhaustive physical activity. Other key metabolites from the citric acid cycle needed for energy production were found to be unchanged. Because of this, a deficiency of malic acid has been hypothesized to be a major cause of physical exhaustion. Notably, the administration of malic acid to rats has been shown to elevate mitochondrial malate and increase mitochondrial respiration and energy production.

Dicoumarol (Dicumarol) is a hydroxycoumarin originally isolated from molding sweet-clover hay, with anticoagulant and vitamin K depletion activities. Dicoumarol is a competitive inhibitor of vitamin K epoxidereductase; thus, it inhibits vitamin K recycling and causes depletion of active vitamin K in blood. This prevents the formation of the active form of prothrombin and several other coagulant enzymes, and inhibits blood clotting.