Sugar causes 'major changes' to brain’s reward systems, study says

The results suggest eating too much sugar can lead to a drug-like dependence.

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  • The study involved feeding pigs sugar water, in addition to a regular diet, for 12 days.
  • After 12 days, the researchers observed major changes in the pigs' dopamine and opioid systems.
  • The results also suggest that eating too much sugar can raise our tolerance for other substances.
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3D printing of body parts is coming fast – but regulations are not ready

Today, a quickly emerging set of technologies known as bioprinting is poised to push the boundaries further.

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In the last few years, the use of 3D printing has exploded in medicine. Engineers and medical professionals now routinely 3D print prosthetic hands and surgical tools. But 3D printing has only just begun to transform the field.

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Biologists extend worm lifespan by 500% in surprising discovery on aging

A new study shows that altering the ISS and TOR pathways in roundworms can extend lifespan by 500 percent.

  • The experiment was conducted on C. elegans, a nematode species often used in research on aging.
  • Humans evolved with the same cellular pathways, suggesting that the findings might help inform anti-aging therapies for humans.
  • The new study focuses on the role that mitochondria play in the aging process.
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This flu season is especially bad. Researchers may have developed a universal vaccine.

Georgia State University researchers have created a novel nanoparticle vaccine.

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  • A nanoparticle influenza vaccine developed at Georgia State University proved effective in mice.
  • The researchers combined a pair of influenza proteins in a novel approach to vaccination.
  • They plan on loading it onto microneedle patches for skin vaccinations in the next phase of testing.
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  • A study at the University of Virginia Brain Institute links the brain's pleasure center with our biological clock.
  • The easy availability of high-calorie foods has created a long feeding window each day, leading to an increase in obesity.
  • To combat this trend, closing the feeding window, as with intermittent fasting, is proving important for optimal health.
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