Word: oxygenation
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...muscle - worsened throughout the day, leaving her puzzled and fearful. By nightfall she was finding it difficult to breathe. Early the next morning, she was in the emergency ward of her local hospital surrounded by staff trying to establish the cause of her distress. After they had given Gibson oxygen and tested for a heart attack, one of them asked her, "Have you recently been on a long-haul flight...
...hoping to die at home and not in a warehouse. My younger brothers and sister take turns on night duty, along with my niece, and of course my mother is there, seeing to everything, administering the liquid nutrients and Tylenol through a feeding tube, adjusting the oxygen. It is an up-and-down business. At various times, he has seemed to be at death's door, and distant family have flown in to say goodbye, and then the other night, with my little girl standing at his bedside and poking him, he seemed ready to pick...
...lease on life. Some lore has it that bypass people are a little crazier than most, that the "cabbage" (coronary artery bypass) activates a wild hair. I am beginning to think there's truth in the theory that bypass surgery savages the memory (something to do with oxygen deprivation while on the heart-lung machine). My memory was once photographic. Now I have to work harder sometimes to fetch a name. The other day, for some reason, I wanted to retrieve the name of... you know, the "Gonzo journalist" of "Fear and Loathing" fame... Rolling Stone... you know...
...doesn't cause mental dysfunction so much as unmask it, in the way that a stress test can reveal an underlying heart condition. After all, if the arteries are clogged, there's a good chance that at least a few blood vessels in your head are having trouble getting oxygen to your brain. Confusion and memory problems can also be a sign of depression, which has its own causes and treatments...
...gamma secretase execute a one-two snip that cuts a larger precursor protein into a shorter fragment. Sometimes the fragment is 40 units long, sometimes 42. The slightly longer variant, scientists have found, is directly toxic to nerve cells. Among other things, it appears to stimulate the release of oxygen free radicals, thereby setting off in the brain a destructive biochemical cascade...