Word: mcg
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Studies have shown that a blood level of 10 mcg of lead per deciliter of blood is associated with potentially irreversible harm, although recent studies have shown that as little as 5 mcg/dL can also be dangerous. By extrapolating from their data, researchers estimated that if a population of children under age 4 was routinely exposed to Indian spices or ceremonial powders, the additional ingestion of lead would lead to a threefold increase - from 0.8% to 2.8% - in the percentage of children with a blood level of lead over 10 mcg/dL. "Our message is to say, Be aware of these...
...study, which involved 370 healthy children ages six months to nine years in Australia, researchers immunized half of the group with two doses of vaccine, each containing 15 micrograms (mcg) of the virus antigen. The other half received two doses containing 30 mcg of the antigen each. In both cases, the second dose was given 21 days after the first. The researchers found that 21 days after receiving only one shot, 92.5% of children in the 15-mcg-dose group and 98% of those receiving the higher dose had generated sufficient antibodies against H1N1...
...results suggest that one shot of the lower-dose vaccine may generate just as many flu antibodies as the two shots U.S. children currently receive, each containing 7.5 mcg of viral antigen. The findings could factor into discussions that health officials have as they make up recommendations for next year's flu season. Having children get immunized only once, rather than twice, may help increase the percentage of kids who are protected against influenza...
...Christos Zipitis, a pediatrician with the Stockport NHS Foundation Trust and lead author of the new paper, which appears online this week in the Archives of Disease in Childhood. Types and doses of vitamin D supplements varied, and were not always reported, but Zipitis says supplementation was roughly 10 mcg, or 400 I.U., of vitamin D daily - the amount typically found in infant multivitamins. Based on data from three case-control studies involving 6,455 participants, the new paper found that infants who were given supplements were 29% less likely to develop type 1 diabetes compared with infants who never...
...limit is the acceptable limit of safety, which includes a 10-fold safety factor. That's not a risk level. That's the accepted safety level [0.1 mcg of mercury per kg of body weight per day]. That's 10 times lower than where the EPA determined that risk was occurring - which is a prudent safety limit to be certain that there is no risk. So, for example, if six pieces of tuna sushi a week would put you at the limit, that means you would have to eat 60 pieces to get to the level where the EPA determined...