葡萄球菌溶血素

The secretion of δ-hemolysin well reflects the regulation of access gene regulation system in S. aureus.

δ溶血素的分泌反映了金黄色葡萄球菌密度感应系统调控外毒素分泌的特点。

But we have seldom found the reports about it in China; So writer summarized some literature more than twenty years; name,classification and family of hemolysin have been written, especially three of representative species:α-toxin, Streptolysin O and HlyA; Nowaday, A relationship between the hemolysin and pathopoiesis of bacterium is obvious.

另外，细菌溶血素的英文命名并不统一，检索时容易造成漏检或误检；通过查阅大量英文文献资料，归纳汇总近20年报道的溶血素研究进程；该文详细列出了细菌溶血素名称、分类以及各溶血素家族列表。并且分别介绍了其中三种典型的穿孔毒素：葡萄球菌α-毒素、链球菌溶血素-O、埃希氏大肠杆菌溶血素HlyA。

Methods Three pairs of primers have been designed according to the hilA of Salmonella spp., hemolysin of Proteus mirabilis and Staphylococcus aureus clone pSa-442 Sau3AI fragment and the anticipated PCR products were 580bp, 401bp and 256bp.

本研究依据沙门菌侵袭基因正调节蛋白基因、变形杆菌溶血素基因和金黄色葡萄球菌特异性pSa-442序列，运用Primer Premier 5.0分别设计3对特异性引物，预计PCR扩增的目的基因片段分别为为580bp、401 bp、256 bp。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。