Science Daily

Subscribe to Science Daily feed Science Daily
Updated: 2 hours 37 min ago

Implantable microphone could lead to fully internal cochlear implants

02/07/2024
Researchers developed a prototype of an implantable microphone for a cochlear implant. Their device, which senses the movement of the ear drum in the inner ear, performed as well as commercial hearing aids and could someday enable a fully internalized cochlear implant.

Research shows how RNA 'junk' controls our genes

02/07/2024
Researchers have made a significant advance in understanding how genes are controlled in living organisms. The new study focuses on critical snippets of RNA in the tiny, transparent roundworm Caenorhabditis elegans (C. elegans). The study provides a detailed map of the 3'UTR regions of RNA in C. elegans. 3'UTRs (untranslated regions) are segments of RNA involved in gene regulation.

Groundbreaking approach to sleep study expands potential of sleep medicine

02/07/2024
Bye bye sleep lab: An engineer is redesigning sleep studies, so they can be done at home without all the cumbersome wires dangling all over your body. Instead, only two wires needed.

An ant that selectively amputates the infected limbs of wounded sisters

02/07/2024
Saving lives through surgery is no longer exclusive to humans. Scientists now detail how Florida carpenter ants, a common, brown species native to its namesake, selectively treat the wounded limbs of fellow nestmates -- either by wound cleaning or amputation. When experimentally testing the effectiveness of these 'treatments,' not only did they aid in recovery, but the research team found the ants' choice of care catered to the type of injury presented to them.

Doctors could soon use facial temperature for early diagnosis of metabolic diseases

02/07/2024
A colder nose and warmer cheeks may be a telltale sign of rising blood pressure. Researchers discovered that temperatures in different face regions are associated with various chronic illnesses, such as diabetes and high blood pressure. These temperature differences are not easily perceptible by one's own touch but can instead be identified using specific AI-derived spatial temperature patterns that require a thermal camera and a data-trained model. With further research, doctors could one day use this simple and non-invasive approach for early detection of diseases.

Engineered plasma cells show long-lasting antileukemic activity in mice

02/07/2024
Researchers show for the first time that engineered human plasma B cells can be used to treat a disease -- specifically leukemia -- in a humanized animal model. The results mark a key step in the realization of ePCs as therapies to treat cancer, auto-immune disorders, and protein deficiency disorders.

Proteins and fats can drive insulin production for some, paving way for tailored nutrition

02/07/2024
When it comes to managing blood sugar levels, most people think about counting carbs. But new research shows that, for some, it may be just as important to consider the proteins and fats in their diet. The study is the first large-scale comparison of how different people produce insulin in response to each of the three macronutrients: carbohydrates (glucose), proteins (amino acids) and fats (fatty acids). The findings reveal that production of the blood sugar-regulating hormone is much more dynamic and individualized than previously thought, while showing for the first time a subset of the population who are hyper-responsive to fatty foods.

Melting of Alaskan glaciers accelerating faster than previously thought

02/07/2024
Melting of glaciers in a major Alaskan icefield has accelerated and could reach an irreversible tipping point earlier than previously thought. The research found that glacier loss on Juneau Icefield, which straddles the boundary between Alaska and British Columbia, Canada, has increased dramatically since 2010. The team looked at records going back to 1770 and identified three distinct periods in how icefield volume changed. In particular, they found that icefield-wide, rates of glacier area shrinkage were five times faster from 2015-2019 relative to 1948-1979. The research team say that current published projections for the Juneau icefield may need to be updated to reflect the processes detailed in this latest study.

Study illuminates cues algae use to 'listen' to their environment

02/07/2024
New research shows how a small group of single-celled algae are able to use chemical cues to communicate stress information. Understanding this ability, once thought unique to plants, helps illuminate the complex evolutionary history of plants and algae.

How our brains develop facial recognition skills: New face-detecting brain circuit

02/07/2024
Scientists have uncovered a brain circuit in primates that rapidly detects faces. The findings help not only explain how primates sense and recognize faces, but could also have implications for understanding conditions such as autism, where face detection and recognition are often impaired from early childhood.

Organic material from Mars reveals the likely origin of life's building blocks

02/07/2024
Two samples from Mars together deliver clear evidence of the origin of Martian organic material. The study presents solid evidence for a prediction made over a decade ago that could be key to understanding how organic molecules, the foundation of life, were first formed here on Earth.

Light targets cells for death and triggers immune response with laser precision

02/07/2024
A new method of precisely targeting troublesome cells for death using light could unlock new understanding of and treatments for cancer and inflammatory diseases.

Weight change across common antidepressant medications

02/07/2024
A new study compared weight change across eight common first-line antidepressants for patients taking an antidepressant for the first time. The study found differences in weight change between the different antidepressants after medication initiation, with bupropion consistently showing the least weight gain. The study adds rigorous evidence on expected weight gain across common antidepressant treatments.

Tax on antibiotics could help tackle threat of drug-resistance

02/07/2024
Taxing certain antibiotics could help efforts to tackle the escalating threat of antibiotic resistance in humans, according to a new study.

Mechanism of lupus pathogenesis unveiled

02/07/2024
A team identifies target protein regulating autoimmune disease lupus.

Ocean acidification turns fish off coral reefs

02/07/2024
A new study of coral reefs in Papua New Guinea shows ocean acidification simplifies coral structure, making crucial habitat less appealing to certain fish species.

Genetic patterns of world's farmed, domesticated foxes revealed via historical deep-dive

02/07/2024
Domesticated animals play a prominent role in our society, with two-thirds of American families enjoying the companionship of pets and many others relying on animal products for their nutritional needs. But the process of domestication remains a bit of a mystery.

A prosthesis driven by the nervous system helps people with amputation walk naturally

02/07/2024
With a new surgical intervention and neuroprosthetic interface, researchers restored a natural walking gait in people with amputations below the knee. Seven patients were able to walk faster, avoid obstacles, and climb stairs more naturally than people with a traditional amputation.

New and improved camera inspired by the human eye

02/07/2024
Computer scientists have invented a camera mechanism that improves how robots see and react to the world around them. Inspired by how the human eye works, their innovative camera system mimics the tiny involuntary movements used by the eye to maintain clear and stable vision over time.

Self-assembling, highly conductive sensors could improve wearable devices

02/07/2024
To advance soft robotics, skin-integrated electronics and biomedical devices, researchers have developed a 3D-printed material that is soft and stretchable -- traits needed for matching the properties of tissues and organs -- and that self-assembles. Their approach employs a process that eliminates many drawbacks of previous fabrication methods, such as less conductivity or device failure, the team said.

Pages