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Science News Archive May 2009 - Page 16


Page 16 of 22

Dogs, maybe not, but old genes can learn new tricks

Two ancient genes in beetles were found to be co-opted for a new trait, challenging the idea that fundamental genes cannot acquire new functions. The study also suggests that developmental genes are candidates for recruitment and may not be as constraining as previously thought.

SourceIndiana University·JournalProceedings of the National Academy of Sciences·DateMay 11, 2009

JCI online early table of contents: May 11, 2009

Researchers identified LXR proteins as a new target in the fight against tuberculosis, providing substantial protection against infection. Additionally, studies revealed that immune cells can destroy AAV-transduced liver cells through CTL recognition, suggesting a potential therapeutic intervention to improve gene therapy success.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateMay 11, 2009

River delta areas can provide clue to environmental changes, Texas A&M prof says

Researchers have found drastic changes in sediment cores from river deltas worldwide, revealing past changes in nitrogen application, flooding, and hurricane events. The study highlights the importance of deltaic sediments as a 'history book' for understanding environmental changes, particularly in relation to climate change.

SourceTexas A&M University·JournalProceedings of the National Academy of Sciences·DateMay 11, 2009

Warriors do not always get the girl

An international team of anthropologists discovered that more aggressive warriors among the Waorani have lower indices of reproductive success than less warlike men. The research contradicts previous findings on Yanomamo men, who were found to benefit from their aggressive behavior in terms of acquiring wives and children.

SourcePenn State·JournalProceedings of the National Academy of Sciences·DateMay 11, 2009

Major funding to help cut CO2 emissions

The University of Nottingham is receiving £6.9m in funding to develop carbon capture and storage (CCS) technologies that could drastically cut CO2 emissions from fossil-fuel power stations. The project aims to investigate combustion and CO2 capture and transport technologies to help meet UK and global emission reduction targets.

Traumatic brain injury haunts children for years with variety of functional problems: 2 studies

A longitudinal study of children with severe traumatic brain injuries found that they experienced lasting problems with day-to-day functioning, including behavioral issues and cognitive deficits. A meta-analysis of previous studies also showed that problems persisted over time, especially for those with more severe injuries.

SourceAmerican Psychological Association·JournalNeuropsychology·DateMay 11, 2009

Do electronic health records help or hinder medical education?

A recent PLOS Medicine study examines the effects of electronic health records (EHRs) on medical education. Two groups of researchers present contrasting views: one arguing that EHRs may erode physician education due to potential risks, while another highlights opportunities for enhanced clinical skills and patient communication.

SourcePLOS·JournalPLOS Medicine·DateMay 11, 2009

Bone marrow stem cell co-transplantation prevents embryonic stem cell transplant-associated tumors

Co-transplanting bone marrow stem cells with embryonic stem cells eliminates tumor formation in spinal cord injury (SCI) laboratory animals. The study suggests that BMSCs induce differentiation of undifferentiated ES cells into a neuronal lineage, resulting in suppression of tumor growth.

Research says older people need more sun

Research shows a high correlation between low vitamin D levels and metabolic syndrome in older adults, who are more likely to have a vitamin D deficiency. Vitamin D deficiency is linked to an increased risk of having metabolic syndrome and related metabolic diseases.

SourceUniversity of Warwick·JournalDiabetes Care·DateMay 11, 2009

New genomic technique uncovers coral transcriptome

Researchers developed a new method for transcriptome analysis using next-generation sequencing technology, enabling the discovery of protein-coding genes and genetic markers in corals. The study identified approximately 11,000 genes, over 30,000 markers of genetic variation, and novel candidate genes for stress-related processes.

SourceBMC (BioMed Central)·JournalBMC Genomics·DateMay 11, 2009

Study: Women with hard to diagnose chest pain symptoms at higher risk for cardiovascular events

A new study published in Archives of Internal Medicine finds that women with chest pain but no coronary artery disease are at an elevated risk for cardiovascular events such as heart attack or stroke. The study suggests that these patients require a different treatment regimen and highlights the need to reevaluate their risk assessment.

SourceCedars-Sinai Medical Center·JournalArchives of Internal Medicine·DateMay 11, 2009

Closer to an effective treatment for gum disease in smokers

A study published in Environmental Microbiology reveals that cigarette smoke changes the DNA and membrane proteins of Porphyromonas gingivalis, a key bacterial cause of periodontitis. This adaptation affects the immune system's recognition of the pathogen, making smokers more susceptible to oral disease.

SourceWiley·JournalEnvironmental Microbiology·DateMay 11, 2009