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Science News for October 22, 2002


Getting more mileage out of cord blood

Researchers have developed a method to culture and expand cord blood-derived stem cells, increasing their number by over 100-fold. The expanded cells showed improved potency in reconstituting the recipient's blood and immune cell systems.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateOct 22, 2002

JCI table of contents, October 21, 2002

Researchers uncover the role of parasympathetic innervation in fat distribution, revealing functional implications for obesity. Additionally, studies explore the molecular mechanisms behind long QT-3 syndrome, immunodeficiencies, and intestinal lymphocyte recruitment, shedding light on novel therapeutic targets.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateOct 22, 2002

Internet access to nature sounds and bird videos

Cornell University's Macaulay Library has gained access to digital sound recordings and high-definition video clips, enabling researchers, conservationists, and citizen-scientists to support ornithology projects. The new system provides streaming capabilities for sounds and video over the Internet and maintains all digital assets.

Ouch! The receptors mediating acidic pain sensation

A study by Shinya Ugawa and colleagues found that acid sensing ion channels (ASICs) function as acid sensors within a specific pH range, while VR1 receptors are not involved. The ASICs inhibitor amiloride may be a useful analgesic for treating localized pain within this range.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateOct 22, 2002

New study shows weight loss decreases ACE enzyme that controls blood pressure

A new study published in Obesity Research reveals that shedding excess pounds decreases activity of the ACE enzyme, a key player in high blood pressure regulation. By losing weight, individuals can lower their risk of cardiovascular disease, stroke, and kidney disease, as well as experience significant improvements in blood pressure.

SourceUniversity of North Carolina at Chapel Hill·JournalObesity Research·DateOct 22, 2002