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Science News for July 25, 2010


Now that's what I call a rat

The CSIRO Australia team has found the remains of a massive 6 kg rat, which survived until around 1000-2000 years ago. The discovery highlights the importance of conserving biodiversity among rodents, such as rats, which play key roles in ecosystems.

SourceCSIRO Australia·DateJul 25, 2010
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Why more education lowers dementia risk

A study of 872 individuals found that more education reduces dementia risk by improving brain coping mechanisms. Individuals with higher education levels exhibited similar brain pathology but better compensation for dementia effects.

SourceUniversity of Cambridge·JournalBrain·DateJul 25, 2010

Non-human sugar in biotech drugs causes inflammation

Researchers discovered a non-human sialic acid sugar in biotech drugs that can provoke a strong immune response in some individuals, worsening chronic inflammation. A simple modification to the drug-making process could solve this problem by adding human sialic acid.

SourceUniversity of California - San Diego·JournalNature Biotechnology·DateJul 25, 2010

Researchers discover how key enzyme repairs sun-damaged DNA

Researchers have witnessed how a key enzyme called photolyase works at the atomic level to repair sun-damaged DNA in a few billionths of a second. The discovery holds promise for future sunburn remedies and skin cancer prevention by allowing scientists to design drugs or lotions that heal sun damage.

SourceOhio State University·JournalNature·DateJul 25, 2010

Scientists test Moreton Bay as coral 'lifeboat'

Moreton Bay has shown coral survival and flourishing in about half of the past 7000 years, but human activities have negatively affected corals. The study's findings suggest that improving water quality and regrowing mangroves are essential for making Moreton Bay a suitable 'lifeboat' for corals.

SourceARC Centre of Excellence for Coral Reef Studies·JournalFrontiers in Ecology and the Environment·DateJul 25, 2010
SAMSUNG T9 Portable SSD 2TB

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Study establishes most effective technique for diagnosing childhood tuberculosis in resource-poor countries

A new diagnostic technique called microscopic-observation drug-susceptibility (MODS) has been shown to be significantly more sensitive and faster than conventional culture tests, diagnosing 70% more cases of pulmonary TB among children under 12. This is the best available test for confirming paediatric pulmonary tuberculosis in resourc...

SourceThe Lancet_DELETED·JournalThe Lancet Infectious Diseases·DateJul 25, 2010

Scientists tap into Antarctic octopus venom

Researchers have collected venom from Antarctic octopuses for the first time, discovering four new species and uncovering unique properties. The study provides insight into the adaptation of venom to sub-zero temperatures, which could lead to breakthroughs in pain management, allergies, and cancer treatment.

SourceUniversity of Melbourne·JournalToxicon·DateJul 25, 2010