allergic response

Tripelennamine hydrochloride (Pyribenzamine hydrochloride) is a histamine H1 antagonist with low sedative action but frequent gastrointestinal irritation.

APC 366 is a selective tryptase inhibitor (Ki = 7.1 μM). Tryptase is a serine protease released during mast cell degranulation, which reduces acute airway responses to allergens and can be used for asthma allergy treatment.

Betamethasone 21-phosphate is a synthetic glucocorticoid.1It prevents increases in macrophage and eosinophil numbers in bronchoalveolar lavage fluid (BALF) and decreases in blood leukocyte numbers in a guinea pig model of parainfluenza-3 viral infection when administered at a dose of 8 mg/kg but does not prevent airway hyperresponsiveness after infection.2Betamethasone 21-phosphate inhibits cell infiltration into the aqueous humor in a rat model of endotoxin-induced uveitis when administered topically or subcutaneously at doses of 0.01-1% or 1 mg/kg, respectively.3It increases maximal lung pressure volume curves in fetal sheep when administered to pregnant ewes at 0.75 gestation at doses of 80 and 170 μg/kg.1Betamethasone 21-phosphate increases body weight, impairs learning and memory, increases anxiolytic behavior, and reduces hippocampal neurogenesis in CD-1 mice but reduces body weight and increases neurogenesis with no effect on anxiety in high-anxiety DBA/2 mice when administered at a dose of approximately 25 mg/kg per day in the drinking water for seven weeks.4Formulations containing betamethasone 12-phosphate and betamethasone acetate have been used in the treatment of severe allergic conditions and a variety of immune-related conditions. 1.Loehle, M., Schwab, M., Kadner, S., et al.Dose-response effects of betamethasone on maturation of the fetal sheep lungAm. J. Obstet. Gynecol.202(2)186.e181-186.e187(2010) 2.Leusink-Muis, A., Ten Broeke, R., Folkerts, G., et al.Betamethasone prevents virus-induced airway inflammation but not airway hyperresponsiveness in guinea pigsClin. Exp. Allergy29(Suppl. 2)82-85(1999) 3.Tsuji, F., Sawa, K., Kato, M., et al.The effects of betamethasone derivatives on endotoxin-induced uveitis in ratExp. Eye Res.64(1)31-36(1997) 4.Aiello, R., Crupi, R., Leo, A., et al.Long-term betamethasone 21-phosphate disodium treatment has distinct effects in CD1 and DBA/2 mice on animal behavior accompanied by opposite effects on neurogenesisBehav. Brain Res.278155-166(2015)

1. Kuwanon G (Moracenin B) as dual inhibitors of PTP1B and α-glucosidase enzymes, as well as insulin sensitizers, it may potentially be utilized as an effective treatment for Type II diabetes mellitus. 2. Kuwanon G has anti-inflammatory activity, it can attenuate atherosclerosis through inhibiting foam cell formation and inflammatory response. 3. Kuwanon G is a potent inhibitor of Mycobacterium tuberculosis protein tyrosine phosphatase B. 4. Kuwanon G shows acetylcholinesterase (AChE) and butyrylcholinesterase(BChE) inhibitory activities, it may be a promising candidate for preventive and therapeutic agents for Alzheimer's disease. 5. Kuwanon G prevents the pathological progression of allergic asthma through the inhibition of lung destruction by inflammation and immune stimulation. 6. Kuwanon G has antibacterial activity against oral pathogens. 7. Kuwanon G is a specific antagonist for the GRP-preferring receptor and can be useful for studying the physiological and pathological role of GRP.

Tripelennamine, an ethylenediamine derivative, acts as a potent histamine H1-receptor antagonist, effectively reducing the organism's allergic response to histamine. It is utilized in researching conditions such as rhinitis, conjunctivitis, and allergic and anaphylactic reactions [1] [2] [3].

MRGPRX1 agonist 4 is a potent and orally active Mas-related G protein-coupled receptor X1 (MRGPRX1) positive conformation modulator (EC50: 0.1 μM). MRGPRX1 agonist 4 ameliorated the behavioral thermal allergic response in mice, a model of MRGPRX1 neuropathic pain.

BTL-MK (Compound 19) is an orally active antiallergic agent that inhibits degranulation of mast cells with an IC50 of 6.7 μM by binding to the inhibitory receptor FcγRIIB. BTL-MK improves metabolic stability in human liver microsomes and ameliorates the allergic response in an Ovalbumin-induced food allergy mice model. It exhibits good pharmacokinetic characteristics with metabolic stability [1].

RWJ-58643 is a β-trypsin and trypsin inhibitor used in studies to inhibit allergic inflammatory conditions. The compound was effective in reducing nasal allergy symptoms, eosinophil infiltration, and interleukin-5 (IL-5) levels at a lower dose (100 mg). However, at higher doses (300 mg and 600 mg), an increase in eosinophils and elevated IL-5 levels were observed, showing a clear dose-dependent response.

Cetirizine Impurity B dihydrochloride (De(carboxymethoxy) Cetirizine Acetic Acid Dihydrochloride) is an impurity of Cetirizine dihydrochloride. Cetirizine is a second-generation antihistamine. Cetirizine is a specific, orally active and long-acting histamine H1-receptor antagonist. Cetirizine marks antiallergic properties and inhibits eosinophil chemotaxis during the allergic response.

Atranol is a potent sensitizer found in oakmoss extract. It causes contact dermatitis by triggering an allergic response in the immune system. Atranol holds potential for research into the causes of contact dermatitis and allergens in cosmetics.