Category Health/Medical

Sleep Tight! Researchers Identify the Beneficial Role of Sleep

Simultaneous imaging of chromosome dynamics (red) and neuronal activity (green) in live zebrafish.
Credit: David Zada

Sleep increases chromosome dynamics that clear out DNA damage accumulated during waking hours. Why do animals sleep? Why do humans “waste” a third time of their lives sleeping? Throughout evolution sleep has remained universal and essential to all organisms with a nervous system, including invertebrates such as flies, worms, and even jellyfish. But the reason why animals sleep – despite the continuous threat of predators – still remains a mystery, and is considered among the biggest unanswered questions in life sciences.

In a new study, published today in the journal Nature Communications, researchers at Bar-Ilan University in Israel reveal a novel and unexpected fu...

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Overcoming Cardiovascular disease with a Magnetically-Steerable Guidewire Microrobot

Concept map of attachable guidewire microrobot developed by Professor Hongsoo Choi ‘s team in the Department of Robotics Engineering at DGIST.
Credit: Copyright DGIST

DGIST research team succeeded in developing a microrobot that can reach the accurate location of cardiovascular disease such as the Chronic Total Occlusion by moving and steering the microrobot towards a desired direction inside complicated blood vessels. This research is expected to increase the success rate of treatment and shorten the time of cardiovascular disease surgery.

DGIST announced on February 27 that Professor Hongsoo Choi’s team in the Robotics Engineering Department developed the ‘Magnetically Controlled Microrobot’ that can enhance the success rate of CTO treatment among myocardial infarctions through a...

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Dental Fillings could Last Twice as Long

Carmem Pfeifer, D.D.S., Ph.D. from the OHSU School of Dentistry is working to develop a filling material that is two times more resistant to breakage than standard fillings.
Credit: OHSU/Kristyna Wentz-Graff

New material could mean fewer trips to the dentist’s office, scientists report. A compound used to make car bumpers strong and protect wood decks could prevent return visits to the dentist’s office. A team of researchers with the OHSU School of Dentistry in Portland, Oregon, have created a filling material that’s two times more resistant to breakage than standard fillings, according to a study published by the journal Scientific Reports. The new filling uses the additive thiourethane, which is also in protective coatings for cars and decks.

The team also has developed an adhesi...

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Scientists Rejuvenate Stem Cells in the Aging Brain of Mice

Scientists from the Luxembourg Centre for Systems Biomedicine (LCSB) of the University of Luxembourg and from the German Cancer Research Center (DKFZ) have been able to rejuvenate stem cells in the brain of aging mice. The revitalized stem cells improve the regeneration of injured or diseased areas in the brain of old mice. The researchers expect that their approach will provide fresh impetus in regenerative medicine and facilitate the development of stem cell therapies.
Credit: University of Luxembourg

Scientists have been able to rejuvenate stem cells in the brain of aging mice. The revitalised stem cells improve the regeneration of injured or diseased areas in the brain of old mice...

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