The New England journal of medicine
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Air-pollution levels have been trending downward progressively over the past several decades in southern California, as a result of the implementation of air quality-control policies. We assessed whether long-term reductions in pollution were associated with improvements in respiratory health among children. ⋯ We found that long-term improvements in air quality were associated with statistically and clinically significant positive effects on lung-function growth in children. (Funded by the Health Effects Institute and others.).
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A study in drosophila shows that the progeny of male flies briefly fed a diet with abnormally high or low sugar levels are more susceptible to obesity. The data suggest that epigenetic susceptibility factors are at play not only in flies but in humans and mice as well.
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Letter Case Reports
Infection with a chlorophyllic eukaryote after a traumatic freshwater injury.
Infections with chlorophyllic algae are uncommon. Invasive infection with Desmodesmus armatus developed in two patients independently after they each sustained a penetrating freshwater injury.
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A hepatitis E vaccine could become a powerful new tool in the prevention and control of hepatitis E virus transmission and disease. Most immediately, it can have a role in curbing outbreaks of hepatitis E in humanitarian crises.
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A 15-year-old girl was admitted to the hospital with a persistent fever, headache, and myalgia. A solitary, painful, black, crusted ulcer with a peripheral erythematous halo was noted in the left popliteal fossa; the ulcer had begun as an asymptomatic erythematous papule 1 week previously.