大鼠肠黏膜中的镁离子-碳酸氢根-三磷酸腺苷酶和碳酸酐酶
Mg2+-HCO-3-ATPase and carbonic anhydrase in rat intestinal mucosa.
作者信息
Suzuki S, Ozaki N
出版信息
Experientia. 1983 Aug 15;39(8):872-3. doi: 10.1007/BF01990412.
PMID:6135624
Abstract
Mg2+-dependent and HCO-3-stimulated ATPase activity was highest in the brush border (microvilli) of rat duodenal mucosa compared with that of the other gastrointestinal mucosa. This ATPase may be useful to neutralize the gastric acid in the duodenal lumen. Carbonic anhydrase seems to accomplish a subsidiary role in the above reaction.
摘要
与其他胃肠道黏膜相比，镁离子依赖性且受碳酸氢根刺激的ATP酶活性在大鼠十二指肠黏膜的刷状缘（微绒毛）中最高。这种ATP酶可能有助于中和十二指肠腔内的胃酸。碳酸酐酶似乎在上述反应中起辅助作用。
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