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  • Title: [Experimental studies on antitussive, expectorant and antiasthmatic effects of extract from Citrus grandis var. tomentosa].
    Author: Li PB, Ma Y, Wang YG, Su WW.
    Journal: Zhongguo Zhong Yao Za Zhi; 2006 Aug; 31(16):1350-2. PubMed ID: 17061559.
    Abstract:
    OBJECTIVE: To observe the antitussive, expectorant and antiashmatic effects of the extract from Citrus grandist var. tomentosa. METHOD: The cough models induced by ammonia liquor in mice and citric acid in guines pigs were used to observe the antitussive effects. The methods of phenel red execretion in mice and phlegm displacement of rats were used to investigate the expectorant effects. Bronchial asthma model induced by histamine-acetylcholine in guinea pigs was used to observe the antiasthmatic effects. RESULT: The extract from the title plant could inhibit the cough induced by ammonia in mice, decrease the frequency of cough induced by citric acid in guineas pig and prolong the latent period of cough. The extract also could obviously increase phenol red output of trachea in mice, promote expectoration in rats and prolong the latent period of asthma induced by histamine-acetylcholine in guinea pigs. CONCLUSION: The extract from C. grandis var. tomenfosa has significant antitussive, expectorant and antiasthmatic effects.
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