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  • Title: Antiallergic/antiasthmatic activity of oligopeptide related to IgE.
    Author: Singh R, Nath A, Gupta PP, Shulka M, Khare SK, Kundu B.
    Journal: Pharmacol Res; 1998 May; 37(5):353-6. PubMed ID: 9642030.
    Abstract:
    In spite of continuous research in the field of bronchial asthma, still no satisfactory drug is available. Recently a new class of oligopeptide exhibited antiallergic activity by inhibiting the synthesis of IgE antibody. The analogue of ADSDGK (94-335) has shown antiallergic activity in experimental models. The 94-335 inhibited the passive cutaneous anaphylaxis (PCA) reactions in rats in a dose-dependent manner (0.5-10 mg kg-1 p.o.) by 47-90%. There was a 70-87% protection of mast cell degranulation induced by compound 48/80 with peptide 94-335 at 0.5-1.5 mg kg-1 p.o. in rats. This peptide also inhibited antigen- induced contraction in sensitised guinea pig ileum. There was 18 and 72% protection to bronchoconstriction induced by histamine and egg albumin, respectively, in an aerosol test in guinea pigs. These effects of compound 94-335 were comparable with that of the clinically-used antiallergic drug disodium cromoglycate (DSCG). The results suggest that peptide 94-335 possesses potent antiallergic activity.
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