研究:口腔不卫生竟容易引发心脏病

　　Now a Bristol University dental scientist has discovered that a common bacteria responsible for tooth decayand gum disease can break out into the bloodstream and help blood clots to form.

　　最近英国布里斯托尔大学科学家经研究发现，一种导致蛀牙和口腔疾病的常见细菌能够侵入血液循环系统，导致血栓形成。

　　In turn these can cause heart attacks and strokes, which together cause more than 200,000 deaths in Britain every year.

　　这些细菌进而会引发心脏病和中风，每年英国有超过二十万人死于这两种疾病。

资料图 正确的刷牙方式很重要

　　There the bacteria use a proteinon their surface, called PadA, to force blood platelets to bindtogether to shelter them.

　　这些细菌表层有种名叫PadA的蛋白质，能够促使血小板凝结在一起，从而为这些细菌提供保护。

　　Describing the mechanism, he said: "When the platelets clumptogether they completely encase the bacteria. This provides a protective cover not only from the immune system, but also from antibiotics that might be used to treat infection.

　　谈到这一过程，詹金森描述道：“血小板凝固的同时也将这种细菌包裹起来，这样不仅是免疫系统，就连治疗这类感染的抗生素都不起作用。”