福建省埃蠓属二新种

本文报道采自福建省的埃蠓二新种 :环纹埃蠓Alloheleaannulatasp.nov .和闽西埃蠓Alloheleaminxiasp.nov.     

中国西藏地区蝇科五新种（双翅目：蝇总科）

报道采自中国西藏地区的蝇科Muscidae 5新种：锥肛阳蝇Helina conicocerca sp.nov.,春阳蝇Helinaeara sp.nov.,错那阳蝇Helina cuonaica sp.nov.（以上阳蝇属Helina R.-D.,1830）,亚东棘蝇Phaonia yadongica sp.nov.（棘蝇属Phaonia R.-D.,1830）,翱巨黑蝇Megophyra volitanta sp.nov.（巨黑蝇属Megophyra Emden,1965）。模式种标本保存于北京军事医学科学院微生物流行病研究所医学昆虫标本馆。     

Further studies on the mechanism of human histamine-induced asthma : The effect of an aerosolized H1 receptor antagonist (diphenhydramine)

This study was designed to better define the mechanism of histamine-induced bronchoconstriction in humans by pharmacologic manipulation of the postulated bronchial histamine receptor sites. Histamine challenges were performed on a heterogeneous group of adult asthmatic subjects. The cumulative units of histamine required for induction of a sustained 20% or greater decrease in FEV1 from baseline were determined. The effect of pretreatment with an aerosolized H1 receptor antagonist, diphenhydramine hydrochloride, was then studied. Analysis of the data showed that the administration of an H1 receptor antagonist prior to histamine challenge significantly blocked the bronchial response to histamine (p less than 0.005). This effect was considered to be due to specific competitive antagonism at the H1 receptor site and suggests the presence of H1 receptors in human bronchial mucosa.