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Science News Archive October 2006 - Page 9


Page 9 of 17

PNAS study reveals why organs fail following massive trauma

A nationwide team of researchers has discovered several new biochemical pathways that play a central role in post-trauma immune system and organ failure. The study identified the genetic and protein changes in specific immune cells that determine whether trauma is fatal, providing potential insights into many diseases involving human i...

SourceUniversity of Rochester Medical Center·JournalProceedings of the National Academy of Sciences·DateOct 17, 2006

Hospital Clínic starts a home-care program for bone marrow transplanted patients

The Hospital Clínic's at-home bone marrow transplant program has shown promising results in reducing febrile episodes and hospital readmissions. By treating patients in their homes, the program improves quality of life and reduces hospitalization expenses by half. The program is now a routine service for one out of three cancer patients.

Researchers give name to ancient mystery creature

Researchers at the University of Alberta have named an ancient mammal found in Alberta, Canada, which lived about 60 million years ago. The creature, Horolodectes sunae, had powerful jaws and a unique tooth shape that resembles those of primitive relatives of ungulates, but was likely carnivorous.

SourceUniversity of Alberta·JournalJournal of Paleontology·DateOct 17, 2006

Genomic comparison of lactic acid bacteria published

Researchers have characterized the genome sequences of nine different lactic acid-producing bacteria, encoding diverse genes for efficient carbon and nitrogen acquisition. This study will increase understanding of their role in industrial food production, leading to optimized production schemes and new bioproducts.

SourceDOE/Joint Genome Institute·JournalProceedings of the National Academy of Sciences·DateOct 16, 2006

Hospital disaster preparedness in Los Angeles County

The study found that most LA County hospitals have limited disaster preparedness, with only 16% integrating emergency services in their plans. The researchers highlight the need for integration of hospital disaster plans with EMS and community resources to ensure effective response to disasters.

SourceLA BioMed·JournalAcademic Emergency Medicine·DateOct 16, 2006

Learning to live with oxygen on early Earth

Microbes adapted to living with oxygen around 2.7 billion years ago, as indicated by changes in fossil isotopes of carbon in rocks from the late Archean period in Western Australia. This finding supports the idea that oxygen-producing photosynthesis evolved and enriched the atmosphere over time.

SourceCarnegie Institution for Science·JournalProceedings of the National Academy of Sciences·DateOct 16, 2006

Study challenges belief that tree frogs depress metabolic rate after 'waxing' themselves

Researchers found that waxed and inactive tree frogs have similar metabolic rates as unwaxed, dehydrating frogs, challenging the idea of a hibernation-like dormant state. Tree frogs use wiping behaviors to conserve energy by reducing surface evaporation by up to 4%, but this does not lead to significant changes in metabolic rate.

SourceUniversity of Chicago Press Journals·JournalPhysiological and Biochemical Zoology·DateOct 16, 2006

Brain changes in patients with migraine

Researchers at Harvard Medical School found increased thickness of two brain areas in people with migraine compared to healthy controls. The study used magnetic resonance imaging and identified structural differences that may explain visual processing problems during attacks.

SourcePLOS·JournalPLOS Medicine·DateOct 16, 2006

New treatment approach holds promise for children infected by dangerous respiratory virus

Researchers at UTMB have developed an antioxidant treatment that reduces oxidative stress and inflammation caused by RSV, a common and dangerous early-childhood infection. The treatment, tested on laboratory mice, also lowers asthma-like symptoms after the virus has been cleared.

SourceUniversity of Texas Medical Branch at Galveston·JournalAmerican Journal of Respiratory and Critical Care Medicine·DateOct 16, 2006

HIV exploits competition among T cells

Researchers found that competition among T cells allows HIV to escape destruction and develop into full-blown AIDS. A new computer model suggests a polytopic vaccination strategy to combat this effect, which may prevent the final onset of AIDS by reducing immunodominance.

SourceRice University·JournalPhysical Review Letters·DateOct 16, 2006

Menzies receives $4.6 million funding boost

Menzies School of Health Research has received $4.6 million in funding from the National Health and Medical Research Council to boost its research capability in Indigenous, remote, and tropical health. The funding will support six projects, including the Aboriginal Birth Cohort Study and scabies diagnosis development.