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Science News for August 29, 2003


Rat study shows exposure to Ecstasy early in pregnancy induces brain, behavior changes

A new study found that exposing pregnant rats to MDMA resulted in significant increases in dopamine neuron fibers in the frontal cortex, leading to potential behavioral changes. The study also revealed modest decreases in dopamine metabolism and reductions in serotonin levels, suggesting sex differences in vulnerability to MDMA's prena...

SourceNIH/National Institute on Drug Abuse·JournalNeurotoxicology and Teratology·DateAug 29, 2003

Making 3-D chips a reality

Researchers at Rensselaer Polytechnic Institute are developing new interconnect technologies that enable three-dimensional circuit integration, promising improved performance and function. The technology uses damascene processing to bond wafers together face-to-face, reducing global travel distance and enabling faster signal transmission.

Stem cells shown to regenerate damaged lung tissue for first time

Adult stem cells have been shown to regenerate damaged lung tissue, offering a promising new treatment for devastating lung diseases. The study's findings suggest that circulating stem cells can repair damage in organ tissue, which could have a huge impact on the treatment of conditions like emphysema and cystic fibrosis.

SourceUniversity of Vermont·JournalAmerican Journal of Respiratory and Critical Care Medicine·DateAug 29, 2003