Gastroenteritis

Polymyxin B2 is a polypeptide antibiotic with particularly potent antibacterial activity against Gram-negative bacteria. Polymyxin B2 kills bacteria by binding to lipopolysaccharide molecules on the bacterial cell membrane, disrupting membrane integrity and causing leakage of intracellular contents. Polymyxin B2 is used in studies related to Pseudomonas aeruginosa infection and acute enteritis.

7,8-Dimethoxycoumarin is a coumarin compound derived from Artemisia caruifolia with oral activity. 7,8-Dimethoxycoumarin inhibits mitochondrial permeability transition pore and H⁺/K⁺-ATPase, and exhibits antioxidant, anti-inflammatory, renoprotective, neuroprotective and gastroprotective effects. 7,8-Dimethoxycoumarin reduces lipid peroxidation (TBARS), increases GSH levels, inhibits myeloperoxidase (MPO) activity, and regulates the expression of inflammatory factors by inhibiting the NF‑κB and MAPK pathways. 7,8-Dimethoxycoumarin ameliorates gastric mucosal injury, alleviates renal tissue lesions and relieves neuropathic pain. 7,8-Dimethoxycoumarin can be used in studies related to acute renal failure, trigeminal neuralgia and gastritis.

15-PGDH-IN-5 (compound 5) is a sulfoxide-derived 15-PGDH inhibitor. 15-PGDH-IN-5 exhibits higher metabolic stability and superior in vivo exposure compared with the lead compound SW033291 (HY-16968). 15-PGDH-IN-5 inhibits the irreversible oxidative catabolism of PGE2 by 15-PGDH, thereby enhancing the tissue-specific bioavailability of endogenous PGE2. 15-PGDH-IN-5 exerts anti-inflammatory effects and accelerates tissue repair and regeneration, and it is used in studies on tissue injury and fibrosis-related diseases such as inflammatory bowel disease and idiopathic pulmonary fibrosis.

CSLP43 is a selective RIPK2 and XIAP inhibitor with an IC₅₀ of 19.9 nM against human RIPK2. CSLP43 binds to the ATP-binding pocket of RIPK2 and disrupts the interaction between RIPK2 and the BIR2 domain of XIAP or cIAP1. CSLP43 inhibits RIPK2 ubiquitination, NOD1-dependent inflammatory signaling pathways, NOD2-dependent inflammatory signaling pathways, as well as NF-κB activation associated with NOD agonists. CSLP43 is selective for the NOD1/NOD2 signaling pathway and does not inhibit the kinase activity of RIPK1 or RIPK3. CSLP43 is applicable to research related to Crohn's disease, Blau syndrome, early-onset sarcoidosis and early-onset inflammatory bowel disease.

R 58639 is a histamine H1 receptor antagonist. R 58639 can be used for the study of gastric ulcers.