doyra: [网络] 多伊拉 doyou: [网络] 你愿意吗；千万你；屠益华 doyras: [网络] 多拉喇嘛 doyne's occluder: 《英汉医学词典》Doyne's occluder ; 多英(完全性)遮眼器 doysen: [网络] 多森 doyne's honeycomb degenerationdoyne: 《英汉医学词典》Doyne's honeycomb degenerationDoyne ; Doyne蜂窝状变性 doz,no: 《英文msh词典》Doz,No ; [入口词] Doz,No ; [主题词] Caffeine ; [药动学] Phosphodiesterase Inhibitors ; [英文释义] A methylxanthine naturally occurring in some beverages and also used as a pharmacological agent. Caffeine's most notable pharmacological effect is as a central nervous system stimulant,increasing alertness and producing agitation. It also relaxes smooth muscle,stimulates cardiac muscle,stimulates diuresis,and appears to be useful in the treatment of some types of headache. Several cellular actions of caffeine have been observed,but it is not entirely clear how each contributes to its pharmacological profile. Among the most important are inhibition of cyclic nucleotide phosphodiesterases,antagonism of adenosine receptors,and modulation of intracellular calcium handling. doyne's honeycomb degeneration: 《英汉医学词典》Doyne's honeycomb degeneration ; 多英家族性胶样变性,多英蜂窝状变性 doz.: [医][=dozen]一打(12个) doyne's honeycomb choroiditis: 《英汉医学词典》Doyne's honeycomb choroiditis ; 家族性显性玻璃疣,多英蜂窝状脉络膜炎
