New Malaria Vaccine Depends on … Mosquito Bites?

The same menace that spreads malaria -- the mosquito bite -- could help wipe out the deadly disease, according to researchers working on a new vaccine at Tulane University.


The PATH Malaria Vaccine Initiative (MVI), established in 1999 through a grant from the Bill & Melinda Gates Foundation, announced February 15 a collaboration with Tulane University School of Public Health and Tropical Medicine and India's Gennova Biopharmaceuticals Ltd. to produce and test a novel vaccine that aims to inoculate mosquitoes when they bite people.


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Unlocking the secrets of DNA

Neutron scattering has provided the first experimental data showing how DNA structure changes as it 'melts'. This knowledge is a step towards technological applications of DNA, such as computer components.


Neutron scattering gives information about the correlation between base pairs during denaturation, which is not possible using other techniques. This is used to measure the characteristic size of the denatured regions as the temperature is changed, and these sizes can be compared with those predicted by the theoretical model.



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Human-made DNA sequences made easy: New method for rapidly producing protein-polymers

Bioengineers have developed a new method for rapidly producing an almost unlimited variety of human-made DNA sequences.
These novel sequences of recombinant DNA are used to produce repetitive proteins to create new types of drugs and bioengineered tissues. Current methods for producing these DNA sequences are slow or not robust, the researchers said, which has hindered the development of these increasingly important new classes of protein-based polymers.

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Eating vegetables gives skin a more healthy glow than the sun, study shows

 New research suggests eating vegetables gives you a healthy tan. The study showed that eating a healthy diet rich in fruit and vegetables gives you a more healthy golden glow than the sun.

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Antibiotic resistance is not just genetic

Genetic resistance to antibiotics is not the only trick bacteria use to resist eradication -- they also have a second defense strategy known as persistence that can kick in. Researchers have now demonstrated for the first time that interplay occurs between the two mechanisms to aid bacterial survival. The findings could lead to novel, effective approaches to treat multi-drug resistant infections.

http://www.sciencedaily.com/releases/2011/01/110105194838.htm

Emotional signals are chemically encoded in tears, researchers find

Emotional crying is a universal, uniquely human behavior. When we cry, we clearly send all sorts of emotional signals. Scientists have demonstrated that some of these signals are chemically encoded in the tears themselves. Specifically, they found that merely sniffing a woman's tears -- even when the crying woman is not present -- reduces sexual arousal in men.

http://www.sciencedaily.com/releases/2011/01/110106144741.htm

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