Comparison of the Effect of One Therapeutic Dose of Ventolin Syrup and Aerosol on the Ul-trastructure of the Airway Epithelium
Srovnání účinku jedné terapeutické dávky Ventolinu aplikované peros nebo inhalační cestou na ultrastrukturu epitelu dýchacích cest
Aplikace 1 terapeutické dávky Ventolinu ve formě sirupu i aerosolu vyvolala znač nou alteraci epitelu dýchacíchcest. Odpověď buněk epitelu na různé formy aplikace se lišila. Oběma způsoby aplikace byly méně ovlivněny buňkyřasinkové než buňky sekreční. Po inhalační aplikaci došlo i k alteraci apikálních částí cytoplazmy řasinkovýchbuněk spojené se zánikem části volných kinocilií a výraznějším narušením řasinkového lemu. Oběma způsobyaplikace byly pohárkové buňky stimulovány k vydávání sekretu a byl i urychlen mechanismus jejich sekrece.Odpověď na perorální aplikaci Ventolinu byla rychlejší, po 30 minutách byly již zřetelné známky regeneracevyvolaných změn přecházející do nežádoucí hyperplazie pohárkových buněk. Po aplikaci aerosolu byl v této fázipozorován teprve vrchol odpovědi sekrečních buněk.
Klíčová slova:
salbutamol, epitel trachey, „Ventolin syrup“, Ventolin inhaler, elektronová mikroskopie
Authors:
V. Konrádová 1; J. Uhlík 1; L. Vajner 1; J. Zocová 2
Authors‘ workplace:
Ústav histologie a embryologie 2. LF UK, Praha
1
Published in:
Čes-slov Pediat 2000; (5): 271-275.
Category:
Overview
By the administration of one therapeutic dose of both Ventolin syrup or two puffs of Ventolin inhaler, a seriousalteration of the airway epithelium was produced. The ciliated cells were less altered compared to the secretoryones. After inhalation of Ventolin aerosol, the process of apical blebbing accompanied with the degeneration ofsome free kinocilia and with the impairment of the ciliary border was encountered. After administration of eitherVentolin syrup or aerosol, the goblet cells were stimulated to discharge their mucus. The mechanism of secretionwas accelerated. 30 min. after oral administration of Ventolin, signs of regeneration, resulting in secretory cells’hyperplasia, were noticed. The peak of goblet cells stimulation was recorded 30 min. after inhalation of two puffsof Ventolin aerosol.
Key words:
salbutamol, tracheal epithelium, „Ventolin syrup“, Ventolin inhaler, electron microscopy
Labels
Neonatology Paediatrics General practitioner for children and adolescentsArticle was published in
Czech-Slovak Pediatrics
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