Word: lacks
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...fewer people carry that variant. In the lab, Weiss found that the African-specific receptor, called DARC, or duffy antigen receptor for chemokines, also interacted with HIV: the receptor binds to a wide array of proteins that suppress the virus's replication. Intrigued, but unable to explain why the lack of the receptor increased HIV infection, Weiss teamed up with geneticists at the University of Texas and elsewhere to analyze how the gene variant impacts HIV rates in real populations...
...previously studied this genetic variant - found almost exclusively in Africans and their descendants - because it also conferred protection against an early form of malaria. (The malaria parasite needed the receptor to infect blood cells; without the receptor, the parasite starved and died.) More than 90% of sub-Saharan Africans lack the red-blood-cell receptor, along with two-thirds of African-Americans. But the variant that once saved its carriers from one disease now appears to make them more susceptible to another. According to the paper, people with the gene variant were 40% more likely to become infected with...
...clean-up help from the government, non-profits, church groups, volunteers, neighbors and out-of-towners. They generally praise federal government agencies as well as the Red Cross and state and local governments for a prompt initial response. But some also report frustrating delays, run-arounds, indecision and lack of information. And emotions range from relief to grief, calmness to anxiety, optimism to gloom. People who had the least to begin with are sounding the most marooned. Difficult decisions, for individuals and communities, loom about how to rebuild, including whether to seek a federal property buyout. In Oakville, where...
What's Gone Wrong For all those improvements, however, it's clear why my friend Nabi is so pessimistic. The government has not established its authority or credibility. Civil servants lack the most basic education and skills. Perhaps a quarter of teachers are illiterate, and the majority are educated only one grade level above their students (if they are teaching second grade, they have a third-grade education). Many civil servants are corrupt. The police are notoriously predatory and violent. In much of the center and the north of the country, communities have benefited from small amounts of investment...
...bodies are just the opposite. They love salty water - can't get by without it. By weight we're made mostly of it. We get formed in a sack of it. We get sick - quite often - just from the lack of it. This is one of the first things you learn as a surgical resident: a patient who isn't doing well probably needs fluids. After antibiotics, the greatest advances in patient care during our fathers' generation were in fluids - unsung, unglamorous and inexpensive. The understanding of fluid-and-electrolyte balance - basically knowing how much salt and water to give...