LexisNexis® Legal Newsroom
Inhaled particulates may inflame the brain and cause dementia-like harm in children

Prior posts have noted the significant evidence that particulates, particularly PM 2.5, can cause inflammation of the lungs and blood vessels of the body. These posts have also noted that evidence had been found that very small particulates can travel through arteries and veins. Now, evidence has been...

Evidence supports association between methylmercury exposure and adverse cardiovascular impacts

Traditionally, when one considers exposure to methylmercury, adverse impacts upon the brain and kidneys are foremost in any risk assessment. See, for example, http://www.atsdr.cdc.gov/toxfaqs/tf.asp?id=113&tid=24 . Given the state of the evidence, it would appear that this paradigm needs to be amended...

Parkinson's may be caused by the same bacterium that causes ulcers, new animal model studies suggest

The cause of Parkinson's Disease is unknown. To date, many experts have suggested that it may have a genetic origin; see http://www.webmd.com/parkinsons-disease/parkinsons-causes . Other experts point to toxins that may selectively destroy the dopaminergic neurons, thereby causing Parkinson's...

How do schools of fish maneuver together? Watch the trees, not the forest

Watching large schools of fish maneuver with the grace of a water ballet leads to an obvious question: How do so many animals spread over what is often many yards coordinate their activities with such precision? They keep an eye on their immediate neighbors. However, how many neighbors they watch is...

What drives developmental defects in children exposed to drugs and alcohol as fetuses? Loss of chromosomes in brain cells?

Prenatal exposure to amphetamines and alcohol produces abnormal numbers of chromosomes in fetal mouse brains. The findings suggest these abnormal counts may contribute to the developmental defects seen in children exposed to drugs and alcohol in utero. Researchers injected pregnant mice with alcohol...

CDC Advisory Committee recommends lead poisoning be deemed to start at 5 mcg per dL

Prior posts have noted a number of studies over recent years that have demonstrated the adverse impact of lead at levels below that traditionally considered as indicating "lead poisoning", 10 mcg/dL. Lead poisoning continues to be a serious health problem for young children, especially those...

Bird Flu May Increase Risk of Parkinson's

At least in mice, the "bird flu", known more specifically as H5N1, may make those who survive the disease more susceptible to Parkinson's Disease. Although flu is generally thought of as a disease of the body, H5N1 can move into the brain. How it gets there is subject to debate. Some researchers...

Do comb jellies indicate that evolutionary theory needs a serious rethink? Maybe instead they are a door to understanding the evolution of complexity

When viewing evolution over time, scientists generally favor parsimony, that is, lineages radiating from a common ancestor share most of the ancestor's features. This also means that animals at the bottom have simple features, which may grow more complex or which may become more specialized as other...