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Archive for the ‘biotech/medical’ category: Page 107

Jul 30, 2024

Scientists ‘Mind Controlled’ Mice Remotely in Extraordinary World First

Posted by in categories: bioengineering, biotech/medical, genetics, nanotechnology, neuroscience

At the mere flick of a magnetic field, mice engineered with nanoparticle-activated ‘switches’ inside their brains were driven to feed, socialize, and act like clucky new mothers in an experiment designed to test an innovative research tool.

While ’mind control’ animal experiments are far from new, they have generally relied on cumbersome electrodes tethering the subject to an external system, which not only requires invasive surgery but also sets limits on how freely the test subject can move about.

In what is claimed to be a breakthrough in neurology, researchers from the Institute for Basic Science (IBS) in Korea have developed a method for targeting pathways in the brain using a combination of genetics, nanoparticles, and magnetic fields.

Jul 30, 2024

This AI-powered “black box” could make surgery safer

Posted by in category: biotech/medical

A new smart monitoring system could help doctors avoid mistakes—but it’s also alarming some surgeons and leading to sabotage.

Jul 29, 2024

Dr. Tim MacLeod & Dr. Vaibhav Narayan — Davos Alzheimer’s Collaborative — Ending Alzheimer’s Disease

Posted by in categories: biotech/medical, neuroscience

Ending Alzheimer’s Disease Everywhere — Dr. Tim MacLeod, PhD & Dr. Vaibhav Narayan, PhD, Davos Alzheimer’s Collaborative.

Jul 29, 2024

Drugs that Kill ‘Zombie’ Cells may Benefit some Older Women, but not all

Posted by in categories: biotech/medical, food, life extension

Drugs that selectively kill senescent cells may benefit otherwise healthy older women but are not a “one-size-fits-all” remedy, Mayo Clinic researchers have found. Specifically, these drugs may only benefit people with a high number of senescent cells, according to findings publishing July 2 in Nature Medicine.

Senescent cells are malfunctioning cells in the body that lapse into a state of dormancy. These cells, also known as “zombie cells,” can’t divide but can drive chronic inflammation and tissue dysfunction linked to aging and chronic diseases. Senolytic drugs clear tissues of senescent cells.

In the 20-week, phase 2 randomized controlled trial, 60 healthy women past menopause intermittently received a senolytic combination composed of FDA-approved dasatinib and quercetin, a natural product found in some foods. It is the first randomized controlled trial of intermittent senolytic treatment in healthy aging women, and the investigators used bone metabolism as a marker for efficacy.

Jul 29, 2024

Controversial CRISPR scientist promises “no more gene-edited babies” until society comes around

Posted by in categories: biotech/medical, finance, genetics

In a public interview, Chinese biophysicist He Jiankui said he is receiving offers of financial support from figures in the US.

Jul 28, 2024

Machine learning revolutionizes Parkinson’s disease symptom tracking and progression prediction

Posted by in categories: biotech/medical, robotics/AI

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Research develops an automated system using machine learning to quantify motor symptoms in Parkinson’s disease and predict disease progression, offering new therapeutic insights.

Jul 28, 2024

Novel algorithm for discovering anomalies in data outperforms current software

Posted by in categories: biotech/medical, information science, robotics/AI

An algorithm developed by Washington State University researchers can better find data anomalies than current anomaly-detection software, including in streaming data.

The work, reported in the Journal of Artificial Intelligence Research, makes fundamental contributions to artificial intelligence (AI) methods that could have applications in many domains that need to quickly find anomalies in large amounts of data, such as in cybersecurity, power grid management, misinformation, and medical diagnostics.

Being able to better find the anomalies would mean being able to more easily discover fraud, disease in a medical setting, or important unusual information, such as an asteroid whose signals overlap with the light from other stars.

Jul 28, 2024

Scientists turn White Fat Cells into Calorie-Burning Beige Fat

Posted by in categories: biotech/medical, food

A new study shows that suppressing a protein turns ordinary fat into a calorie burner and may explain why drug trials attempting the feat haven’t been successful.

Researchers at UC San Francisco have figured out how to turn ordinary white fat cells, which store calories, into beige fat cells that burn calories to maintain body temperature.

The discovery could open the door to developing a new class of weight-loss drugs and may explain why clinical trials of related therapies have not been successful.

Jul 27, 2024

Twisted carbon nanotubes could achieve significantly better energy storage than advanced lithium-ion batteries

Posted by in categories: biotech/medical, nanotechnology

An international team of scientists, including two researchers who now work in the Center for Advanced Sensor Technology (CAST) at UMBC, has shown that twisted carbon nanotubes can store three times more energy per unit mass than advanced lithium-ion batteries. The finding may advance carbon nanotubes as a promising solution for storing energy in devices that need to be lightweight, compact, and safe, such as medical implants and sensors. The research was published recently in the journal Nature Nanotechnology.

Jul 26, 2024

Why Can’t we Admit Age is a (Biologically) Meaningful Number?

Posted by in categories: biological, biotech/medical, life extension, neuroscience

If there’s one phrase the June 2024 U.S. presidential debate may entirely eliminate from the English vocabulary it’s that age is a meaningless number. Often attributed to boxer Muhammad Ali, who grudgingly retired at age 39, this centuries-old idea has had far-reaching consequences in global politics, as life expectancy more than doubled since the start of the 20th century, and presidents’ ages shifted upwards. We say “age is what we make of it” to ourselves and to policymakers, and think it’s a harmless way to dignify the aged. But how true is it? And if it isn’t true, why would we lie?

For centuries, we have confused our narrative of what aging should be with what its ruthless biology is. Yet pretending that biological age does not matter is at best myopic, and at worst, it’s a dangerous story to our governments, families, and economies. In just 11 years — between 2018 and 2029 — U.S. spending on Social Security and Medicare will more than double, from $1.3 trillion to $2.7 trillion per year. As we age, our odds of getting sick and dying by basically anything go up exponentially. If smoking increases our chances of getting cancer by a factor of 15, aging does so 100-fold. At age 65, less than 5% of people are diagnosed with Alzheimer’s. Beyond age 85, nearly half the population has some form of dementia. Biological aging is the biggest risk factor for most chronic diseases; it’s a neglected factor in global pandemics; and it even plays a role in rare diseases.

This explains why in hospitals, if there’s one marker next to a patient’s name, it’s their age. How many birthday candles we have blown out is an archaic surrogate marker of biological aging. Yet it’s the best we have. Chronological age is so telling of overall health that physicians everywhere rely on it for life-or-death decisions, from evaluating the risks of cancer screening to rationing hospital beds.

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