EFFECTS OF CIGARETTE SMOKING
EFFECTS OF CIGARETTE SMOKING
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吸烟的影响
DOI：
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发表时间：
1954
期刊：
影响因子：
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通讯作者：
G. M. Roth
中科院分区：
文献类型：
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作者：
G. M. Roth
被给予溃疡患者时，pH值几乎没有变化，但游离酸比单独给予水时要高一些。当脂肪乳剂与茶和水相比，在pH、游离酸和胃酶方面没有显著差异。与喝水的人相比，喝茶时的胃排空率更高，当给予蛋白调剂或碳水化合物的时候。当给予蛋白质、脂肪和碳水化合物时，茶会导致排空率增加。透视检查得出了类似的结果，胃内球囊的研究也是如此。从这些和其他数据来看，通常用糖调制的茶在禁食状态和餐后状态下并不是一种有效的胃促分泌剂，而是平均服用两杯。冰茶比热茶更容易让人胃部不适。由于茶能增加胃张力和胃排空率，所以茶通常在饱餐后产生的餐后舒缓作用是由于它对胃肌肉系统的影响。作者认为，他们的观察证明了长期以来的观点，即吃饭时喝一杯或两杯茶有助于消化。到目前为止，还没有证据表明茶中的咖啡因或单宁在这方面有任何特定的影响，因为咖啡因对人的胃肠道没有作用，对单宁也知之甚少。因此，茶作为一种平均用量的饮料，在大多数胃肠疾病的治疗中不需要禁忌。
was given to ulcer patients there was little difference in pH, but the free acid was somewhathigher than when water alone was given. When a fat emulsion was given with tea as comparedwith water, there was no significant difference in the pH, free acid and pepsin. When peptone or carbohydratewas given there was an increasedrate of emptying of the stomachwith tea as comparedwith water. When protein, fat and carbohydratewere given tea caused an increased rate of emptying. Fluoroscopic tests gave similar resultsand so too did studieswith the intragastric balloon. From theseand other data it appearsthat tea as customarily prepared with sugar and taken in average amountsof two cups is not a potent gastric secretagogue in the fasting state and in the post-cibal state. Iced tea leaves the stomach quicker than hot tea. Since tea increasesgastric tone and the rate of gastric emptying, it would appearthat the postprandialrelief which tea often gives after a heavy meal is brought about by its effect on the gastricmusculature. It is felt by the authorsthat their observationsjustify the long-held belief that a cup or two of tea with meals has value in aiding digestion. There is, as yet, no evidencethat the caffeine or tannin of the tea has any specific effect in this regard, for caffeine has no action on the gastro-intestinaltract of man and little is known about the tannin. Tea then, takenas a beveragein averageamounts,need not be contraindicatedin the treatment of most gastro-intestinalconditions.