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Medicine & Health / Research news 1234

Fruit fly avoidance mechanism could lead to new ways to control pain in humans

May 11, 2008 | User rating: 4.5 / 5 after 15 vote(s) | User comments: 2

At first, fruit flies eat like horses. Hatching inside over-ripe fruit where they were laid, they feed wildly in the sugar-rich environment until nature sends them an offer they can’t refuse. To survive, they must leave the ...


New study finds number of fat cells stays constant throughout life

May 09, 2008 | User rating: 4.3 / 5 after 15 vote(s) | User comments: 2

The radioactive carbon-14 produced by above-ground nuclear testing in the 1950s and '60s has helped researchers determine that the number of fat cells in a human's body, whether lean or obese, is established ...


Cell's 'power plant' genes raise vision disorder risk

May 07, 2008 | User rating: 4.8 / 5 after 8 vote(s) | User comments: 1

Genetic variation in the DNA of mitochondria – the “power plants” of cells – contributes to a person’s risk of developing age-related macular degeneration (AMD), Vanderbilt investigators report May 7 in the journal PLoS ...


Killer competition: Neurons duke it out for survival

May 06, 2008 | User rating: 4.8 / 5 after 5 vote(s) | User comments: 1

The developing nervous system makes far more nerve cells than are needed to ensure target organs and tissues are properly connected to the nervous system. As nerves connect to target organs, they somehow compete with each ...


St. Jude finds 'dancing' hair cells are key to humans' acute hearing

May 07, 2008 | User rating: 4.4 / 5 after 11 vote(s) | User comments: 1

St. Jude Children's Research Hospital investigators have found that an electrically powered amplification mechanism in the cochlea of the ear is critical to the acute hearing of humans and other mammals. The findings will ...


Immune system pathway identified to fight allergens, asthma

May 07, 2008 | User rating: 4.5 / 5 after 6 vote(s) | User comments: 1

For the first time, researchers from the University of Pittsburgh School of Medicine have identified genetic components of dendritic cells that are key to asthma and allergy-related immune response malfunction. Targeting ...


Virus mimics human protein to hijack cell division machinery

May 08, 2008 | User rating: not shown ( 3 vote(s) ) | User comments: 1

Viruses are masters of deception, duping their host's cells into helping them grow and spread. A new study has found that human cytomegalovirus (HCMV) can mimic a common regulatory protein to hijack normal cell growth machinery, ...


Justice in the brain: Equity and efficiency are encoded differently

May 08, 2008 | User rating: 4.4 / 5 after 10 vote(s) | User comments: 1

Which is better, giving more food to a few hungry people or letting some food go to waste so that everyone gets a share? A study appearing this week in Science finds that most people choose the latter, ...


Key step in the 'puncture' mechanism of cell death revealed

May 12, 2008 | User rating: not shown ( 4 vote(s) ) | User comments: 1

A team of medical researchers led by Dr Ruth Kluck at Melbourne’s Walter and Eliza Hall Institute (WEHI) has discovered a key step in the mechanism by which cells destroy themselves. In this process, called “apoptosis”, certain ...


Novel mechanisms controlling insulin release and fat deposition discovered

4 hours ago | User rating: 4.7 / 5 after 6 vote(s) | User comments: 1

Scientists at the Swedish medical university Karolinska Institutet have in two recent studies shown that a receptor called ALK7 plays important roles in the regulation of body fat deposition as well as the release of insulin ...