It's also present in spinal fluid and, in very small quantities, in the blood.

这种蛋白同时也出现于脊椎液中，并且极小量存在于血液里。

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Other companies are working on tests for substances in blood and spinal fluid.

其他的公司目前也着力于研究对血液和脊液成份的检测技术。

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It could signal normal pressure hydrocephalus, in which pockets in the brain swell with too much spinal fluid.

这是脑积水的征兆，你大脑里充斥了太多的脊髓液。

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So far, they have found the somnogen in the spinal fluid of 32 sleep-clinic patients.

WSJ: Unraveling the Riddle of Too Much Sleep

Three percent of Zoe's bone marrow and 12% of her spinal fluid were cancerous.

FORBES: Two Girls Two Countries One Cancer

Now the cancer has spread to my spinal fluid, which will likely seal my fate within weeks.

FORBES: Magazine Article