Uncategorized
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19040
I enjoyed your timely article. Conspicuously absent, however, was any mention of the possibility that the disease is a vascular disorder with neurodegenerative consequences, rather than the other way around. The involvement of several dozen risk factors for Alzheimer’s disease that all reduce or impair cerebral perfusion in the Alzheimer’s brain adds ammunition to this […]
- Health & Medicine
Attacking Alzheimer’s
Some researchers now suggest that the so-called amyloid hypothesis is overstated and that other entities, including tau tangles, are as important as beta-amyloid in Alzheimer's disease.
- Animals
Magnetic field tells nightingales to binge
Young birds that have never migrated before may take a cue from the magnetic field to fatten up before trying to fly over the Sahara.
- Health & Medicine
Even high-normal blood pressure is too high
Blood pressure at the high end of what is defined as the normal range is closer to "high" than to "normal" in terms of risk of associated heart disease.
- Astronomy
X-ray study: Energy from a black hole?
Astronomers claim that for the first time, they've observed energy extracted from a black hole, or more precisely, from the tornadolike swirl of surrounding space that a spinning black hole drags along with it.
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Disabilities develop as family affair
A long-term study uncovered family factors that influence the mental development of children with biologically based disabilities, as well as evidence of increasing stress among parents as their kids with disabilities approach adolescence.
- Health & Medicine
Puffer Fish Genomes Swim into View
The tightly packed genomes of two puffer fish species have been deciphered.
- Earth
How polluted is a preschooler’s world?
Preliminary data from a new study show that children may ingest traces of atrazine, a common herbicide, in their drinking water.
- Earth
Kitchen tap may offer drugs and more
Excreted drugs and household chemicals are making their way through community waste-treatment and drinking-water plants.
- Earth
Composting cuts manure’s toxic legacy
Composting manure reduces its testosterone and estrogen concentrations, limiting the runoff of these hormones, which can harm wildlife.
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19039
For a few unfortunate people, choline has a dark side. An inborn error of metabolism, trimethylaminurea, causes them to smell like rotting fish when they eat high-choline foods. Sara D. Brown Clinton, N.J. Good point. New labeling that identifies foods rich in choline should help people with trimethylaminurea avoid those foods. –J. Raloff As a […]
- Health & Medicine
Brain Food
New food labeling will identify foods rich in choline, a nutrient that plays an integral role in learning and brain health.
