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为了明确锌缺乏能够产生小肠内氮基酸丢失的原因,给缺锌鼠服用标记氨基异丁酸,并适当进行供锌控制。24小时后在纯水吸收或分泌条件下用游离肠袢定位灌注方法可测出肠道内氨基异丁酸的丢失。缺锌鼠空肠中纯氨基酸的丢失是比较多的。在空肠和结肠袢中纯水的分泌能够加剧氨基酸的丢失。氨基酸丢失于大便氮中,特别是在渗透性
In order to clarify the reason why zinc deficiency can cause the loss of amino acids in the small intestine, zinc-deficient mice were labeled with aminoisobutyric acid and zinc was appropriately controlled. After 24 hours in the pure water absorption or secretion conditions with free intestinal loop positioning perfusion method can be measured intestinal amino acid isobutyric acid loss. Zinc deficiency in rats jejunum loss of pure amino acids are more. Secretion of pure water in jejunum and colon 能 can exacerbate the loss of amino acids. Amino acids are lost in stool nitrogen, especially in permeability