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Science News Archive 2006 - Page 131


Page 131 of 178

Factor stimulates cartilage growth from stem cells

Researchers at Duke University Medical Center have developed a novel growth factor that significantly improves the ability of human fat-derived stem cells to be transformed into cartilage cells. The growth factor, BMP-6, stimulates the production of key biochemical markers of cartilage cell proliferation, suggesting potential for tissu...

SourceDuke University Medical Center·JournalArthritis & Rheumatism·DateApr 4, 2006

Understanding the life of C. elegans

Researchers at Baylor College of Medicine have identified a new gene called DAF-36 that converts cholesterol into the active ligands for the DAF-12 nuclear receptor. These ligands promote C. elegans reproductive capacity and prevent dauer diapause, a long-lived larval phase.

SourceBaylor College of Medicine·JournalDevelopmental Cell·DateApr 4, 2006

Liver signal critical for insulin's brain action

Researchers have found that liver signal STAT3 mediates the effects of brain insulin, which regulates glucose balance and insulin response. This discovery provides a potential therapeutic target for type 2 diabetes, a condition characterized by impaired glucose production in the liver.

SourceCell Press·JournalCell Metabolism·DateApr 4, 2006

Albatross study shows regional differences in ocean contamination

A new study has found significant regional differences in ocean contamination levels among albatrosses, with black-footed albatrosses foraging in the California Current exhibiting higher concentrations of mercury and organochlorine compounds. The findings suggest that these contaminants build up in the tissues of animals high on the fo...

SourceUniversity of California - Santa Cruz·JournalEcological Applications·DateApr 4, 2006

Thinner and younger

A recent study found that calorie-restricted diets can lower fasting insulin levels, body temperature, and oxidative damage to DNA in humans. After six months on a low-calorie diet, participants showed improvements in heart function compared to those who didn't restrict calories.

SourceWashU Medicine·JournalJAMA·DateApr 4, 2006

Retrospective commemorates late PNAS journal editor-in-chief

The Proceedings of the National Academy of Sciences (PNAS) journal has commemorated the late editor-in-chief Nicholas R. Cozzarelli, who improved the quality and reach of the journal through dynamic initiatives. He also championed open-access publishing, making research papers freely available to researchers and the public.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateApr 4, 2006

Osteoarthritis care for the elderly

A recent study found that only 57% of older patients with osteoarthritis received adequate care, while medication safety was a major concern. The study's results highlight the importance of targeting safe medication use in this population to improve overall quality of care.

SourceWiley·JournalArthritis Care & Research·DateApr 4, 2006

Educational goals higher for visible minority youth

Research found that 79% of visible-minority immigrant youth hope to earn a university degree, compared to 57% of Canadian-born non-visible minority students. The study also revealed that parents of visible-minority immigrant students have higher education levels and express more positive hopes for their children's educational attainment.

SourceUniversity of Alberta·JournalJournal of International Migration and Integration / Revue de l integration et de la migration internationale·DateApr 4, 2006