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Science News Archive November 2019 - Page 29


Page 29 of 41

Oxygen deficiency rewires mitochondria

Researchers have discovered that mitochondria undergo reprogramming under low oxygen conditions, a process that could provide new therapeutic targets for pancreatic cancer. This reprogramming enables cancer cells to adapt to energy scarcity by switching to glycolysis, allowing them to continue growing despite limited nutrients and oxygen.

SourceMax-Planck-Gesellschaft·JournalNature·DateNov 11, 2019

Drug discount cards could actually cost patients more

A new study published in the Canadian Medical Association Journal found that brand-name drug discount cards lead to higher health care spending in Canada, increasing private insurer costs by 46% and public insurer costs by 1.3%. Despite offering some savings, these cards financially disadvantage patients who fill prescriptions with them.

SourceUniversity of British Columbia·JournalCanadian Medical Association Journal·DateNov 11, 2019

Teaching preschool caregivers healthy behaviors may promote healthier habits in high-risk groups

A study in a multi-ethnic community found that teaching young adults healthy behaviors and showing them ultrasound images of plaque in their arteries improved their cardiovascular health. The FAMILIA Project showed significant benefits for caregivers who strictly adhered to simple education plans, reducing risk factors for heart disease.

Heart disease and cancer risk may be linked

A new study reveals that people with cardiovascular disease are at higher risk of developing cancer, while those with more risk factors for heart disease are also more likely to develop cancer. Lifestyle habits that reduce heart disease risk, such as a healthy diet and regular exercise, may also help prevent some cancers.

Injectable, flexible electrode could replace rigid nerve-stimulating implants

Researchers have developed an injectable, flexible electrode that can reduce the cost of neuromodulation therapy, increase its reliability and make it less invasive. The 'injectrode' uses a liquid that cures in the body to create a wired contact, allowing for more elasticity and flexibility compared to traditional rigid implants.

SourceUniversity of Wisconsin-Madison·JournalAdvanced Healthcare Materials·DateNov 11, 2019

Citizen responder CPR and defibrillation programs may improve survival and outcomes from cardiac arrests that occur at home

A study in Denmark found that citizen responders can arrive before emergency medical services in 40% of residential cardiac arrests and perform defibrillation in nearly 50% of cases. This preliminary research suggests citizen responder programs have the potential to increase bystander defibrillation, leading to improved survival rates.

CRISPR: More than just for gene editing?

Researchers at Case Western Reserve University have developed an electrochemical CRISPR platform that can detect specific viruses, such as HPV and parvo, in a single droplet of blood. This innovative device has the potential to provide accurate results in under an hour, compared to existing tests which take three to five days.

SourceCase Western Reserve University·JournalAngewandte Chemie·DateNov 11, 2019

Humans' ability to read dogs' facial expressions is learned, not innate

Researchers found that humans' ability to recognize dog emotions is mainly acquired through age and experience, rather than being an evolutionarily selected trait. Participants who grew up in a cultural context with a positive attitude towards dogs were better at recognizing their emotions, regardless of whether they owned a dog themse...

SourceMax Planck Institute of Geoanthropology·JournalScientific Reports·DateNov 11, 2019

Prey-size plastics are invading larval fish nurseries

Researchers found that larval fish in ocean surface slicks ingest prey-size plastics, which could impact their development and survival. The study highlights the importance of understanding complex gradients in plankton and larval fish abundance to protect these vulnerable life-history stages.

SourceBangor University·JournalProceedings of the National Academy of Sciences·DateNov 11, 2019

Hurricanes have become bigger and more destructive for USA; new study from the Niels Bohr Institute

Researchers at the Niels Bohr Institute find that hurricanes have increased in size and destructive force, with a clear climate signal behind the trend. The new calculation method reveals a significant increase in the frequency of the most destructive hurricanes, which now rival those from the past century.

SourceUniversity of Copenhagen·JournalProceedings of the National Academy of Sciences·DateNov 11, 2019

Magnets for the second dimension

Scientists at ETH Zurich created quadrupole magnetic building blocks that can be assembled into any two-dimensional shape using attractive south and north poles. These modules have potential applications in soft robotics and could be used to create robots controlled by a magnetic field.

SourceETH Zurich·JournalScience Robotics·DateNov 11, 2019

Finding Nemo's cousins

Anemonefish have a unique visual system that allows them to detect ultraviolet (UV) light, which may aid in finding both friends and food. This specialisation in the eye enables them to distinguish colour and see UV light, making it easier to navigate their environment.

SourceUniversity of Queensland·JournalScientific Reports·DateNov 11, 2019

Stress testing the healthcare system

Scientists at CSH Vienna create model to determine regional health care system's resilience in real-time, focusing on physicians' networks and patient flows. The model helps identify critical points where the system can absorb or compensate for lost doctors without collapse.

SourceComplexity Science Hub·JournalProceedings of the National Academy of Sciences·DateNov 11, 2019

New understanding of antibiotic synthesis

Researchers at McGill University have made significant strides in understanding the functioning of enzymes that produce antibiotics and therapeutics. The study found a surprising level of flexibility in the assembly line of nonribosomal peptide synthetases (NRPSs), which could lead to new therapeutic design possibilities.

SourceMcGill University·JournalScience·DateNov 11, 2019