Word: bloodstream
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Dates: during 1990-1999
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...behavioral side of their addiction. But Nicorette has proved disappointing, largely because heavy smokers have trouble getting a sufficient dose to match their craving. In addition, the gum can cause soreness in the mouth and upset stomach. Patches overcome these shortcomings by steadily pumping the drug directly into the bloodstream. After a month of daily use, ex-smokers wean themselves from the nicotine by applying successively smaller patches...
...Being on the receiving end of anal intercourse carries the greatest risk, for heterosexuals as well as gays. Blood vessels in tissues lining the anus and rectum are easy to rupture, and that gives HIV a direct passageway to the bloodstream. The majority of sexually transmitted cases (as opposed to those from shared needles or transfusions) probably result from anal intercourse. Vaginal intercourse is less risky; oral sex has the least risk...
...been used to compare the DNA of extinct animals with their closest living relatives. It has assisted the U.S. military in identifying the remains of soldiers who died during Operation Desert Storm. It is beginning to help physicians detect small numbers of cancer cells circulating in the bloodstream and make prenatal diagnoses of genetic diseases such as sickle- cell anemia, as well as ensure better matches between organ donors and transplant recipients...
...pressure and cholesterol levels become elevated. Men appeared to face greater risk of ill effects than women, possibly because they tend to store excess fat in the abdomen, while women carry it around the hips and thighs. Fat from the belly is more easily mobilized and sent into the bloodstream, where it can clog vital blood vessels. Psychologist Kelly Brownell of Yale University, who directed the study, emphasizes that the findings do not condemn dieting. Rather, they indicate that people need to set realistic goals and be committed to making long-term changes in their habits...
...then rushed the marrow to a hospital room where Marissa's 19-year-old sister Anissa lay waiting. Through a Hickman catheter inserted in the chest, the doctor began feeding the baby's marrow into Anissa's veins. The marrow needed only to be dripped into the girl's bloodstream. There, like salmon heading home to spawn, the healthy marrow cells began to find their way to the bones...