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Archive for the ‘biotech/medical’ category: Page 389

Nov 12, 2023

New Gene Editing Treatment Cuts Dangerous Cholesterol in Small Study

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

So they volunteered for an experimental cholesterol-lowering treatment using gene editing that was unlike anything tried in patients before.

The result, reported Sunday by the company Verve Therapeutics of Boston at a meeting of the American Heart Association, showed that the treatment appeared to reduce cholesterol levels markedly in patients and that it appeared to be safe.

The trial involved only 10 patients, with an average age of 54. Each had a genetic abnormality, familial hypercholesterolemia, that affects around one million people in the United States. But the findings could also point the way for millions of other patients around the world who are contending with heart disease, which remains a leading cause of death. In the United States alone, more than 800,000 people have heart attacks each year.

Nov 12, 2023

Cancer Vaccine Created via CRISPR Prevents and Stops Brain Tumors

Posted by in categories: biotech/medical, neuroscience

New vaccine for deadly brain cancer glioblastoma created with CRISPR-Cas9.

Nov 12, 2023

BCM, Duke University to study surgery treatment for mesothelioma

Posted by in category: biotech/medical

Mesothelioma is a highly fatal disease with a survival rate of under 10% at five years. New advances with immunotherapy have improved survival, but only 23% of patients are alive at three years when treated with immunotherapy alone. Surgery with chemotherapy has resulted in the longest survival. Baylor College of Medicine and Duke University will conduct a clinical trial for patients with mesothelioma to determine whether the combination of chemotherapy and immunotherapy prior to surgery is more effective in treating patients with mesothelioma.

Before surgery, the research team will give participants immunotherapy or chemoimmunotherapy. They plan to enroll 23 people in each arm between Baylor and Duke, and anyone with mesothelioma can participate. They will see participants in clinic to evaluate them prior to enrollment, prior to surgery and in follow-up continually.

“We will determine disease stage and make sure they’re physiologically strong enough for treatment. For patients who have disease that can be removed by surgery, we will randomize them to one of the two arms – either immunotherapy with two drugs, or immunotherapy with two chemotherapy agents. They will receive three cycles of each, then get reevaluated for surgery. They will then continue immunotherapy after surgery for one year,” said Dr. R. Taylor Ripley, associate professor of surgery in the Division of Thoracic Surgery and member of the Dan L Duncan Comprehensive Cancer Center at Baylor.

Nov 12, 2023

Using AI to optimize for rapid neural imaging

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

Connectomics, the ambitious field of study that seeks to map the intricate network of animal brains, is undergoing a growth spurt. Within the span of a decade, it has journeyed from its nascent stages to a discipline that is poised to (hopefully) unlock the enigmas of cognition and the physical underpinning of neuropathologies such as in Alzheimer’s disease.

At its forefront is the use of powerful electron microscopes, which researchers from the MIT Computer Science and Artificial Intelligence Laboratory (CSAIL) and the Samuel and Lichtman Labs of Harvard University bestowed with the analytical prowess of machine learning. Unlike traditional electron microscopy, the integrated AI serves as a “brain” that learns a specimen while acquiring the images, and intelligently focuses on the relevant pixels at nanoscale resolution similar to how animals inspect their worlds.

SmartEM” assists connectomics in quickly examining and reconstructing the brain’s complex network of synapses and neurons with nanometer precision. Unlike traditional electron microscopy, its integrated AI opens new doors to understand the brain’s intricate architecture. “SmartEM: machine-learning guided electron microscopy” has been published on the pre-print server bioRxiv.

Nov 12, 2023

Move Over, CRISPR: Algae and Snails Are Hiding Gene Editing Superpowers

Posted by in categories: bioengineering, biotech/medical

New research finds RNA

Ribonucleic acid (RNA) is a polymeric molecule similar to DNA that is essential in various biological roles in coding, decoding, regulation and expression of genes. Both are nucleic acids, but unlike DNA, RNA is single-stranded. An RNA strand has a backbone made of alternating sugar (ribose) and phosphate groups. Attached to each sugar is one of four bases—adenine (A), uracil (U), cytosine ©, or guanine (G). Different types of RNA exist in the cell: messenger RNA (mRNA), ribosomal RNA (rRNA), and transfer RNA (tRNA).

Nov 12, 2023

This Brain Implant Turns Thoughts into Speech

Posted by in categories: biotech/medical, neuroscience

This post is also available in: he עברית (Hebrew)

A revolutionary brain implant invented by a team of neuroscientists, neurosurgeons, and engineers can transform thoughts into speech. This technology will hopefully help people who cannot speak because of neurological conditions be able to communicate once more.

Gregory Cogan, a professor of neurology at Duke University’s School of Medicine and one of the lead researchers in the project, explains: “There are many patients who suffer from debilitating motor disorders, like Amyotrophic Lateral Sclerosis (ALS) or locked-in syndrome, that can impair their ability to speak… But the current tools available to allow them to communicate are generally very slow and cumbersome.”

Nov 12, 2023

Scientists use Supercomputers to make Optical Tweezers Safer for Living Cells

Posted by in categories: biotech/medical, nanotechnology, supercomputing, tractor beam

Optical tweezers manipulate tiny things like cells and nanoparticles using lasers. While they might sound like tractor beams from science fiction, the fact is their development garnered scientists a Nobel Prize in 2018.

Scientists have now used supercomputers to make optical tweezers safer to use on living cells with applications to cancer therapy, environmental monitoring, and more.

“We believe our research is one significant step closer towards the industrialization of optical tweezers in biological applications, specifically in both selective cellular surgery and targeted drug delivery,” said Pavana Kollipara, a recent graduate of The University of Texas at Austin.

Nov 12, 2023

Groundbreaking sickle cell fitness program pioneers new way to treat disease

Posted by in category: biotech/medical

The blood disorder that mostly affects people of color is under-researched.

Nov 12, 2023

‘Super Melanin’ Heals Skin Injuries from Sunburn, Chemical Burns

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

Imagine a skin cream that heals damage occurring throughout the day when your skin is exposed to sunlight or environmental toxins. That’s the potential of a synthetic, biomimetic melanin developed by scientists at Northwestern University.

In a new study, the scientists show that their synthetic melanin, mimicking the natural melanin in human skin, can be applied topically to injured skin, where it accelerates wound healing. These effects occur both in the skin itself and systemically in the body.

When applied in a cream, the synthetic melanin can protect skin from sun exposure and heals skin injured by sun damage or chemical burns, the scientists said. The technology works by scavenging free radicals, which are produced by injured skin such as a sunburn. Left unchecked, free radical activity damages cells and ultimately may result in skin aging and skin cancer.

Nov 12, 2023

Throat Cancer

Posted by in category: biotech/medical

The main risk factors for throat cancer are using tobacco and heavy drinking. Symptoms of throat cancer may include:

• Sore throat that does not go away.

• Lump in the neck.

Continue reading “Throat Cancer” »

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