1,4:3,6-dianhydro-alpha-d-glucopyranose

Phorbol 12-myristate 13-acetate (PMA) is a natural phorbol ester that acts as an activator of PKC, SphK, and NF-κB, and is commonly used to induce differentiation of THP-1 cells and establish dermatitis models.

Colchicine is an orally active natural alkaloid that acts by inhibiting microtubule polymerization (IC50 = 3 nM) and as a competitive antagonist of the α3 glycine receptor. It possesses broad anti-inflammatory, immunosuppressive, and antifibrotic activities, can inhibit NLRP3 inflammasome activation to prevent NSAID-induced small intestine injury, holds potential for gouty arthritis and rheumatoid arthritis research, and is commonly used to establish Alzheimer’s disease models.

L-Arginine (L-Arg) is a substrate of endothelial nitric oxide synthase (eNOS). L-Arginine is transported to vascular smooth muscle cells via a family of cationic amino acid transporters and is metabolized to nitric oxide, polyamines, or L-proline. L-Arginine is a potent vasodilator and can be used to induce experimental acute pancreatitis.

Bicuculline is an alkaloid extracted from Corydalis decumbens, acting as a competitive antagonist of the neurotransmitter GABAA receptor (IC50 = 2 μM). It also blocks Ca2+-activated potassium (SK) channels and inhibits slow afterhyperpolarization (slow AHP). Bicuculline has anticonvulsant effects and is commonly used to establish mouse seizure models.

Arachidonic acid (Immunocytophyt) is a polyunsaturated omega-6 essential fatty acid that serves as a major component of biological membranes and animal phospholipids. It is synthesized from dietary linoleic acid and acts as a precursor to lipid mediators such as prostaglandins, thromboxanes, and leukotrienes. Arachidonic acid can improve cognitive responses and cardiovascular function and is commonly used to induce paw edema models.