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Science News for July 17, 2009


Healing power of aloe vera proves beneficial for teeth and gums, too

Recent research published in the Academy of General Dentistry's clinical journal revealed that aloe vera tooth gel is as effective as commercial toothpaste in controlling cavity-causing organisms. The study found that aloe vera tooth gel was more effective than some commercially popular brands, making it a great alternative for people ...

SourceAcademy of General Dentistry·JournalEuropean Journal of General Dentistry·DateJul 17, 2009

Professor sheds light on DNA mechanisms

By manipulating individual atoms in DNA, Professor Zhen Huang hopes to unlock new avenues for research into DNA replication and transcription. His study reveals that interactions between methyl and phosphate groups can reduce energy needed for DNA duplex separation, potentially leading to improved understanding of genetic processes.

SourceGeorgia State University·JournalOrganic Letters·DateJul 17, 2009

New strategy in tumor treatment

Researchers propose a novel two-agent combination therapy that selectively kills tumors while sparing healthy cells. The approach leverages the frequent absence of methylthioadenosine phosphorylase in various lethal cancers, allowing for increased doses and reduced toxic side effects.

SourcePLOS·JournalPLOS ONE·DateJul 17, 2009

Large epidemiologic study supports brain power of fish in older people

A recent study published in the American Journal of Clinical Nutrition found an inverse association between fish consumption and dementia prevalence in older adults across 7 middle- to low-income countries. Higher fish consumption was linked to a lower risk of dementia, contradicting previous findings from industrialized countries.

SourceAmerican Society for Nutrition - 2017·JournalAmerican Journal of Clinical Nutrition·DateJul 17, 2009

How to manage erosion caused by everyday beverages

Daily consumption of acidic beverages can lead to demineralization of hard dental tissues, causing tooth structure to wear away. To manage erosion, identify the culprit source, understand its effects on teeth, and stop or reduce consumption. Regular dental check-ups twice a year can help maintain healthy teeth.

SourceAcademy of General Dentistry·JournalEuropean Journal of General Dentistry·DateJul 17, 2009

Why winning athletes are getting bigger

A new analysis by Duke University engineers found that elite athletes are getting bigger and faster, with the fastest swimmers growing 4.5 inches and the swiftest runners growing 6.4 inches taller since 1900. This trend can be predicted by the constructal theory of design in nature.

SourceDuke University·JournalJournal of Experimental Biology·DateJul 17, 2009

Greater Yellowstone elk-wolf study shows elk having fewer calves due to changes in nutrition

A study published by Montana State University researchers found that elk are having fewer calves due to changes in their nutrition, mainly caused by the presence of wolves. Elk are changing their behavior and foraging habits, such as browsing more in forested areas, resulting in a 27% decrease in food intake.

SourceMontana State University·JournalProceedings of the National Academy of Sciences·DateJul 17, 2009