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Science News Archive March 2004 - Page 10


Page 10 of 14

Crucial brain development gene identified

Researchers have identified a critical gene called Lgl1, which plays a vital role in shaping cell behavior during embryonic brain development. The study found that mice lacking this gene exhibit dramatic abnormalities and resemble human patients with medulloblastoma, a type of brain tumor.

SourceCold Spring Harbor Laboratory·JournalGenes & Development·DateMar 9, 2004

Study on sub-millimeter telescope on Chile mountain

Cornell University and Caltech researchers will develop the world's most sensitive sub-millimeter telescope in the Atacama Desert, capable of probing star formation during galaxy formation. The telescope's high sensitivity will enable studies of large-scale universe structure and hidden planets in circumstellar disks.

Researchers identify clues about marijuana effects

A study published in the Journal of Pharmacology and Experimental Therapeutics reveals how cannabinoids produce hypothermia, a decrease in body temperature. The research suggests that nitric oxide plays a role in regulating cannabinoid-induced hypothermia.

SourceTemple University·JournalJournal of Pharmacology and Experimental Therapeutics·DateMar 9, 2004

McGill scientists publish detailed picture of how nutrients and other molecules get into cells

Researchers at McGill University have identified 209 proteins involved in the cellular uptake process, shedding light on protein interactions and disease mechanisms. The study provides a comprehensive molecular inventory of clathrin-coated vesicles, with broad implications for various fields in biology and medicine.

SourceMcGill University·JournalProceedings of the National Academy of Sciences·DateMar 9, 2004

UCSF study: Pediatrician's judgment often better than clinical guidelines for treating infant fever

A recent UCSF study found that pediatricians' clinical judgment may be more effective than strict adherence to guidelines in managing febrile illnesses in infants. The study analyzed data from 3,066 infants and found that experienced clinicians using clinical judgment may reduce unnecessary hospitalizations and improve treatment outcomes.

Are you slow in coordinating your thoughts?

Researchers found a speed limit to neural network synchronization, set by network connectivity. The analysis revealed that even strong interactions cannot achieve faster synchronization than an upper limit. This could severely limit the speed of information processing in the brain.

SourceMax-Planck-Gesellschaft·JournalPhysical Review Letters·DateMar 8, 2004

Watching genes in action

Researchers have developed a novel technique that allows them to visualize three genes at once in embryos, body tissues, or even single cells. This improved FISH method combines existing technologies to illuminate gene activity, enabling scientists to study embryonic development and birth defects in greater detail.

SourceUniversity of Utah Health·JournalDevelopmental Dynamics·DateMar 8, 2004

Abortion may not, after all, affect birth weight of future babies

Researchers analyzed over 13,000 live term births to assess the effect of medical abortion on subsequent pregnancy's birth weight. The study found that women who had undergone a medically induced abortion had lower rates of Low Birth Weight compared to those with no abortion history.

SourceElsevier·JournalInternational Journal of Gynecology & Obstetrics·DateMar 8, 2004