Aminoguanidine is equipotent to L-NMMA and L-NNA as an inhibitor of iNOS. The IC₅₀ values for inhibition of mouse iNOS and rat nNOS are 5.4 and 160 µM, respectively. Aminoguanidine also inhibits induction of iNOS protein expression by endotoxin in rat macrophages.

A natural flavonoid with antioxidant, anti-inflammatory, and anticancer properties; inhibits HIF-1α expression in cancer cells; decreases pro-inflammatory gene expression and oxidative stress in ischemia/reperfusion injury.

A pyrimadine analog that irreversibly inhibits thymidylate synthase, blocking the synthesis of thymidine which is required for DNA synthesis; widely used to treat many gastrointestinal tract adenocarcinomas.

A precursor to Vitamin K2 that is capable of both redox cycling and arylating nucleophilic substrates by Michael addition; used as an antihemorrhagic agent and to inhibit the proliferation of various cancer cells.

Ciprofloxacin is a second generation fluoroquinolone antibiotic that exhibits antibacterial activity against both gram negative and gram positive bacteria. Ciprofloxacin inhibits DNA gyrase and topoisomerase IV, preventing DNA replication.

Commonly used as a pH indicator, a color marker in agarose or polyacrylamide gel electrophoresis, and a dye to detect proteins and nucleic acids (absorbance at 610 nm), particularly when staining living tissues.

A naturally occurring electron donor for eight different enzymes, including those related to collagen hydroxylation, carnitine synthesis (which aids in the generation of ATP), norepinephrine synthesis, tyrosine metabolism, and amidating peptides.

Guaiacol is a phenolic natural product first isolated from Guaiac resin and the oxidation of lignin. Guaiacol is readily oxidized by the heme iron of peroxidases including the peroxidase of COX enzymes. It can therefore serve as a reducing co-substrate for COX reactions. The one-electron oxidation…

A dihydroxybenzoic acid phenolic compound that demonstrates free radical scavenging capability (IC₅₀ = 16.3 μM) in a DPPH radical scavenging activity assay; possesses anti-inflammatory, antihyperglycemic, neuroprotective, and anticancer activities.

A first generation histamine H1 receptor antagonist (Ki = 2.6 nM) that also inhibits muscarinic acetylcholine receptors (Ki = 22 nM); penetrates the CNS, depressing central H1 receptor activity, which may relate to its sedative properties.

A cyclic diacyl hydrazide that exhibits chemiluminescence upon oxidation; HRP combined with H₂O₂ causes luminescent peroxidation of luminol; can also be oxidized, and chemiluminesce, by compounds containing iron, copper, gold, and cyanide.

A red/orange-colored fat-soluble terpenoid with antioxidant properties; can be cleaved to produce vitamin A and retinoic acid.

An inhibitor of respiration in animals and bacteria; binds at the quinone reduction site of succinate:ubiquinone oxidoreductase (SQR; Complex II) in animals, preventing ubiquinone from binding; inhibits NADH fumarate reductase in bacteria; inhibits photosystem II in plants.

A derivative of thiouracil which has long been used to correct hyperthyroidism; also used as a genetic marker for taste, since only some people detect it as a bitter taste.

A protein phosphatase inhibitor that acts as a phosphate group donor in matrix mineralization studies; 10 mM accelerates calcification of cultured vascular smooth muscle cells through an alkaline phosphatase-related mechanism.

A natural form of vitamin A that is thermally more stable than retinol; can reduce cell proliferation and promote differentiation.

An antibacterial antibiotic that acts by interfering directly with the biosynthesis of peptidoglycan, which constitutes the major component of the bacterial cell wall, leading to structural instability and death of bacteria; used as a selective antibiotic for resistant bacteria.

A common C-12 saturated far plentiful in coconut and other nut oils.

An an antimicrobial agent that is often used in antiseptics and dental products such as toothpaste and mouthwash; inhibits MMP-2, -8, and -9.

A fluoroquinolone antibiotic widely used as an antimicrobial and immunomodulatory agent; functions by inhibiting DNA A fluoroquinolone antibiotic widely used as an antimicrobial and immunomodulatory agent; functions by inhibiting DNA gyrase (a type II topoisomerase) and topoisomerase IV, the…

D-myo-Inositol is a growth factor for animals as well as microorganisms. Myo-Inositol is the most abundant form of polyols that serves as a structural element of secondary messengers in eukaryotic cells. Inositol or cyclohexane-1,2,3,4,5,6-hexol is a chemical compound, a sixfold alcohol (polyol) of…

A redox indicator used to detect cellular respiration; primarily reduced by Complex I in mitochondria and, under anaerobic conditions, is completely reduced to an insoluble red 1,3,5-triphenylformazan.

A broad-spectrum tetracycline antibiotic that inhibits protein synthesis in both Gram-positive and Gram-negative bacteria.

A synthetic antibiotic that inhibits dihydrofolate reductase (DHFR), with prominent selectivity for bacterial DHFR over mammalian DHFR (IC₅₀s = 5 and 30,000 nM, respectively); commonly used in combination with sulfamethoxazole to minimize acquired resistance.

An alcoholic β-glucoside derived from willow bark that produces anti-inflammatory (including analgesic and antipyretic) effects similar to that of aspirin by non-selectively inhibiting COX-1 and COX-2 (IC₅₀s > 100 µM).

A central component of energy storage and metabolism in vivo, providing the metabolic energy to drive metabolic pumps and serving as a coenzyme in a wide array of enzymatic reactions; acts a substrate for kinases involved in cell signaling and of adenylate cyclases that produce the second messenger cAMP.

A trace amine that activates TAAR1 (EC₅₀s = 0.08, 0.69, and 2.26 µM for rat, mouse, and human-rat chimera receptors, respectively); inhibits the release of norepinephrine and dopamine (IC₅₀s = 40.6 and 119 nM, respectively).

A flavonoid compound found in the bark and rinds of many plants and fruits.

A stain that permits the rapid, reversible detection of proteins immobilized on various matrices; used to locate proteins or evaluate efficiency of transfer, or an alternative to actin probing as a loading control; also used as a fiducial marker in mass spectrometric imaging.

A dye that is commonly used in laboratories to stain or quantify proteins; typically gives blue bands on a clear background with a sensitivity of 50-100 ng/band; displays metachromasia by appearing pink-red, rather than blue, when binding certain proteins, such as collagen and histone H1.

A dye which stains proteins in gels with ease and sensitivity; used in the Bradford to quantify the amount of protein in a solution; selectively inhibits P2X7 (IC₅₀s = 10.1 nM and 265 nM for rat and human P2X7, respectively) and reduces neurological injury secondary to traumatic brain…

A short chain fatty acid that inhibits HDACs, induces growth arrest, differentiation and apoptosis in cancer cells, and suppresses inflammation by reducing the expression of pro-inflammatory cytokines.