[Effect of tranilast ophthalmic solution on allergic conjunctivitis in guinea pigs]. 1993

F Itoh, and Y Komatsu, and F Taya, and M Isaji, and M Kojima, and Y Momose, and H Suzawa, and H Miyata, and T Shibazaki
Pharmacological Laboratories, Kissei Pharmaceutical Co., Ltd., Nagano, Japan.

The effect of the ophthalmic solution of tranilast, an anti-allergic agent, on allergic conjunctivitis was studied in passively sensitized guinea pigs. We determined the content of uranine dye and histamine in tears and histopathologically examined palpebral conjunctiva. After instillation of antigen into the conjunctival sac, inflammation of the palpebral conjunctiva, an increase in leaked dye and the release of histamine were found. In the histopathological study, tranilast (1.0%) suppressed the appearance of edema and infiltration of inflammatory cells. Tranilast suppressed the leakage of uranine in a dose-dependent manner. A 0.5% solution of diphenhydramine also showed the inhibitory effect on the leakage of uranine. The inhibitory effect of 0.5% tranilast on antigen-induced dye leakage and histamine release lasted for 6 hr. These results suggest that topically applied tranilast is effective for allergic conjunctivitis.

UI MeSH Term Description Entries
D008297 Male Males
D009883 Ophthalmic Solutions Sterile solutions that are intended for instillation into the eye. It does not include solutions for cleaning eyeglasses or CONTACT LENS SOLUTIONS. Eye Drop,Eyedrop,Eyedrops,Ophthalmic Solution,Eye Drops,Drop, Eye,Drops, Eye,Solution, Ophthalmic,Solutions, Ophthalmic
D003228 Conjunctiva The mucous membrane that covers the posterior surface of the eyelids and the anterior pericorneal surface of the eyeball. Bulbar Conjunctiva,Palpebral Conjunctiva,Plica Semilunaris of Conjunctiva,Plicae Semilunares of Conjunctiva,Tunica Conjunctiva,Conjunctiva, Bulbar,Conjunctiva, Palpebral,Conjunctivas
D003233 Conjunctivitis, Allergic Conjunctivitis due to hypersensitivity to various allergens. Allergic Conjunctivitis,Conjunctivitis, Atopic,Conjunctivitis, Giant Papillary,Conjunctivitis, Vernal,Keratoconjunctivitis, Vernal,Allergic Conjunctivitides,Atopic Conjunctivitides,Atopic Conjunctivitis,Conjunctivitides, Allergic,Conjunctivitides, Atopic,Conjunctivitides, Giant Papillary,Conjunctivitides, Vernal,Giant Papillary Conjunctivitides,Giant Papillary Conjunctivitis,Keratoconjunctivitides, Vernal,Papillary Conjunctivitides, Giant,Papillary Conjunctivitis, Giant,Vernal Conjunctivitides,Vernal Conjunctivitis,Vernal Keratoconjunctivitides,Vernal Keratoconjunctivitis
D004155 Diphenhydramine A histamine H1 antagonist used as an antiemetic, antitussive, for dermatoses and pruritus, for hypersensitivity reactions, as a hypnotic, an antiparkinson, and as an ingredient in common cold preparations. It has some undesired antimuscarinic and sedative effects. Benhydramin,Diphenylhydramin,2-Diphenylmethoxy-N,N-dimethylethylamine,Allerdryl,Benadryl,Benylin,Benzhydramine,Dimedrol,Diphenhydramine Citrate,Diphenhydramine Citrate (1:1),Diphenhydramine Hydrochloride,Diphenylhydramine,Dormin,Citrate, Diphenhydramine,Hydrochloride, Diphenhydramine
D004205 Cromolyn Sodium A chromone complex that acts by inhibiting the release of chemical mediators from sensitized MAST CELLS. It is used in the prophylactic treatment of both allergic and exercise-induced asthma, but does not affect an established asthmatic attack. Disodium Cromoglycate,Sodium Cromoglycate,Aarane,Bicromat Spray,Cromoglicic Acid,Cromoglycate,Cromoglycic Acid,Cromolyn,FPL-670,Intal,Lomudal,Nalcrom,Nasalcrom,Opticrom,Vicrom,Acid, Cromoglicic,Acid, Cromoglycic,Cromoglycate, Disodium,Cromoglycate, Sodium,FPL 670,FPL670
D005452 Fluoresceins A family of spiro(isobenzofuran-1(3H),9'-(9H)xanthen)-3-one derivatives. These are used as dyes, as indicators for various metals, and as fluorescent labels in immunoassays. Tetraiodofluorescein
D006168 Guinea Pigs A common name used for the genus Cavia. The most common species is Cavia porcellus which is the domesticated guinea pig used for pets and biomedical research. Cavia,Cavia porcellus,Guinea Pig,Pig, Guinea,Pigs, Guinea
D006632 Histamine An amine derived by enzymatic decarboxylation of HISTIDINE. It is a powerful stimulant of gastric secretion, a constrictor of bronchial smooth muscle, a vasodilator, and also a centrally acting neurotransmitter. Ceplene,Histamine Dihydrochloride,Histamine Hydrochloride,Peremin
D006634 Histamine H1 Antagonists Drugs that selectively bind to but do not activate histamine H1 receptors, thereby blocking the actions of endogenous histamine. Included here are the classical antihistaminics that antagonize or prevent the action of histamine mainly in immediate hypersensitivity. They act in the bronchi, capillaries, and some other smooth muscles, and are used to prevent or allay motion sickness, seasonal rhinitis, and allergic dermatitis and to induce somnolence. The effects of blocking central nervous system H1 receptors are not as well understood. Antihistamines, Classical,Antihistaminics, Classical,Antihistaminics, H1,Histamine H1 Antagonist,Histamine H1 Receptor Antagonist,Histamine H1 Receptor Antagonists,Histamine H1 Receptor Blockaders,Antagonists, Histamine H1,Antagonists, Histamine H1 Receptor,Antihistamines, Sedating,Blockaders, Histamine H1 Receptor,First Generation H1 Antagonists,H1 Receptor Blockaders,Histamine H1 Blockers,Receptor Blockaders, H1,Antagonist, Histamine H1,Classical Antihistamines,Classical Antihistaminics,H1 Antagonist, Histamine,H1 Antagonists, Histamine,H1 Antihistaminics,Sedating Antihistamines

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