Add BrightSurf on Google Email

Science News Archive 2005 - Page 8


Page 8 of 165

Gene increases risk of tuberculosis

A recent scientific study found that a specific gene variation on chromosome 17 is associated with an increased risk of developing active tuberculosis. The MCP-1 protein, which attracts immune cells to sites of infection, was found to play a crucial role in the early immune response to TB-causing bacteria.

SourceJournal of Experimental Medicine·JournalJournal of Experimental Medicine·DateDec 12, 2005

How the neuron sprouts its branches

Scientists have found that Golgi outposts, previously thought to play only a central role, are actually distributed throughout the length of growing dendrites. This discovery sheds light on how neurons sort proteins and regulate their growth, with implications for understanding brain development and neurodegenerative diseases.

Cell phones, driving don't mix

A study by Oregon State University researchers found that switching between tasks, like driving and cell phone use, leads to delays in response time and accuracy. The study suggests that simplifying tasks can help efficiency, but technology is complicating everything, including driving.

Medical College of Wisconsin researchers

Researchers at the Medical College of Wisconsin have developed a new vaccine technology that confers broad-spectrum, short-term immunity against unknown biothreat agents. This breakthrough could revolutionize defense against germ warfare and treatment of infectious diseases in populations.

SourceMedical College of Wisconsin·JournalJournal of Allergy and Clinical Immunology·DateDec 9, 2005

Risk of second cancer after breast cancer

A large study found an increased risk of second cancers in various sites, including connective tissue and myeloid leukemia, after breast cancer diagnosis. Treatment for breast cancer and shared genetic or environmental factors are thought to contribute to this risk.

SourceWiley·JournalInternational Journal of Cancer·DateDec 8, 2005

The secret love life of plants

Scientists at Max Planck Institute and University of Cologne isolate mutant Arabidopsis thaliana with single sperm cell, allowing it to germinate and fertilize. The researchers found that a positive signal from the egg cell's fertilization triggers endosperm proliferation.

SourceMax-Planck-Gesellschaft·JournalNature Genetics·DateDec 8, 2005

New study of the world's smallest elephant

The Bornean elephant has been confirmed as a separate sub-species, with an estimated 1,100-1,500 individuals remaining in the wild. The Cardiff University study will provide essential conservation information and training for Malaysian organizations on wildlife monitoring techniques.

ASU researchers 'wire' DNA to identify mutations

Researchers at Arizona State University have developed a technology that can directly identify single nucleotide polymorphisms (SNPs) in DNA molecules using electrical conductivity. The technique involves measuring the electrical conductance of a single DNA molecule, which can reveal sequence information and detect mutations.

SourceArizona State University·JournalProceedings of the National Academy of Sciences·DateDec 8, 2005

Alzheimer's disease prevention may be easier than cure

Researchers have found that a specific immunization strategy targeting Abeta42 or Abeta40 can prevent amyloid deposition in mice, suggesting an effective approach for preventing Alzheimer's disease. However, this method may not be effective once existing deposits are established.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateDec 8, 2005

'Huygens' finds a hostile world on Titan

The Huygens probe has revealed that Titan's surface is a barren, 'river' landscape where water ice congeals like stone. Methane plays a similar role to water on Earth, existing in solid, liquid, and gas states. The dense atmosphere has conditions similar to those early in our solar system.

SourceMax-Planck-Gesellschaft·JournalNature·DateDec 8, 2005

JCI table of contents: December 8, 2005

Researchers discover that preventing amyloid deposition may be easier than curing established Alzheimer's disease through an immunization strategy targeting Abeta42. Additionally, a study finds that pre-treatment of patient T cells with IL-10 and vitamin D3 can overcome glucocorticoid resistance in asthma patients.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateDec 8, 2005