结论血培养阳性细菌株以革兰氏阴性菌为主。
Staphylococcus is the main strain of gram-positive bacterias.
结论消化道手术患者中心静脉导管感染以革兰氏阴性菌最常见。
Conclusions Gram-negative bacteria are the most common pathogens for central venous catheter infection in GI operated patients.
为了进一步研究CD 14在革兰氏阴性菌感染中的作用机理以及与其它受体之间的相互关系，拟通过灭活cd 14的研究方法以达此目的。
Desired to inactivate CD14 in order to further research its functional mechanisms in the condition of infection of gram negative bacteria and the relationship between CD14 and other receptors.
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