Archive for the ‘biotech/medical’ category: Page 182
May 7, 2024
Melanoma: Melanoma is the most serious type of skin cancer
Posted by Shubham Ghosh Roy in category: biotech/medical
Melanoma is the most serious type of skin cancer. Often the first sign of melanoma is a change in the size, shape, color, or feel of a mole. Most melanomas have a black or black-blue area. Melanoma may also appear as a new mole. It may be black, abnormal, or “ugly looking.”
Thinking of “ABCDE” can help you remember what to watch for:
May 7, 2024
How NASA’s XRISM captures space data with just 36 pixels
Posted by Gemechu Taye in categories: biotech/medical, electronics
Resolve specializes in detecting “soft” X-rays, a form of light with energies 5,000 times greater than visible light. This allows it to pierce through the veil and observe the universe’s most violent and energetic phenomena: supermassive black holes, sprawling galaxy clusters, and the fiery aftermath of supernovae.
However, these 36 pixels are far from ordinary. They function as a “microcalorimeter spectrometer,” explains Brian Williams, NASA’s XRISM project scientist. Each pixel acts like a miniature thermometer, meticulously measuring the temperature change caused by an incoming X-ray. This seemingly simple act reveals a wealth of information.
May 7, 2024
D-peptide-magnetic nanoparticles fragment tau fibrils and rescue behavioral deficits in a mouse model of Alzheimer’s disease
Posted by Shubham Ghosh Roy in categories: biotech/medical, nanotechnology, neuroscience
A new peptide-carrying magnetic nanoparticle described in Science Advances has resolved both biological and behavioral symptoms in mouse models of Alzheimer’s disease.
A short peptide disassembles stable pathogenic tau fibrils of Alzheimer’s disease.
May 7, 2024
Google’s medical AI destroys GPT’s benchmark and outperforms doctors
Posted by Dan Kummer in categories: biotech/medical, robotics/AI
Google Research and Google’s AI research lab, DeepMind, have detailed the impressive reach of Med-Gemini, a family of advanced AI models specialized in medicine. It’s a huge advancement in clinical diagnostics with massive real-world potential.
May 6, 2024
In the brain, bursts of beta rhythms implement cognitive control
Posted by Dan Breeden in categories: biotech/medical, chemistry, mathematics, neuroscience
Bursts of brain rhythms with “beta” frequencies control where and when neurons in the cortex process sensory information and plan responses. Studying these bursts would improve understanding of cognition and clinical disorders, researchers argue in a new review.
The brain processes information on many scales. Individual cells electrochemically transmit signals in circuits but at the large scale required to produce cognition, millions of cells act in concert, driven by rhythmic signals at varying frequencies. Studying one frequency range in particular, beta rhythms between about 14–30 Hz, holds the key to understanding how the brain controls cognitive processes — or loses control in some disorders — a team of neuroscientists argues in a new review article.
Drawing on experimental data, mathematical modeling and theory, the scientists make the case that bursts of beta rhythms control cognition in the brain by regulating where and when higher gamma frequency waves can coordinate neurons to incorporate new information from the senses or formulate plans of action. Beta bursts, they argue, quickly establish flexible but controlled patterns of neural activity for implementing intentional thought.
May 6, 2024
One in 50 people ‘almost guaranteed to develop new type of Alzheimer’s disease’
Posted by Paul Battista in categories: biotech/medical, genetics, neuroscience
ONE in 50 people could be at risk of a new type of genetic dementia, according to a study.
Researchers found people carrying two copies of the APOE4 gene mutation are “almost guaranteed” to develop Alzheimer’s in old age.
May 6, 2024
Scientists create vaccine with potential to protect against future coronaviruses
Posted by Joseph Barney in categories: biotech/medical, nanotechnology
Ohh nice! New vaccine science it seems though I’m not familiar with vaccines, this does seem like a novel approach. It’s kinda future proof to train the immune system to target proteins that are shared across all coronavirus’ I’m hoping it provides, as do they, that it provides a better solution than current vaccines.
The vaccine is made by attaching harmless proteins from different coronaviruses to minuscule nanoparticles that are then injected to prime the body’s defences to fight the viruses should they ever invade.
Because the vaccine trains the immune system to target proteins that are shared across many different types of coronavirus, the protection it induces is extremely broad, making it effective against known and unknown viruses in the same family.
May 6, 2024
New Inflammatory Bowel Disease Testing Protocol could Speed up Diagnosis
Posted by Natalie Chan in category: biotech/medical
Serial home tests would reduce unnecessary colonoscopy testing. Patients with suspected inflammatory bowel disease (IBD) could benefit from better testing protocols that would reduce the need and lengthy wait for potentially unnecessary colonoscopies, a new study has found.
In a paper published in Frontline Gastroenterology, researchers from the Birmingham NIHR Biomedical Research Centre (BRC) at the University of Birmingham tested a new protocol to improve IBD diagnosis combining clinical history with multiple home stool tests.
In the two-year study involving 767 participants, patients were triaged and had repeated faecal calprotectin (FCP) tests and the research team found that the use of serial FCP tests were able to strongly predict possible IBD as well as Crohn’s Disease and Ulcerative Colitis.
May 6, 2024
Scientists restore brain cells impaired by a rare genetic disorder
Posted by The Neuro-Network in categories: biotech/medical, genetics, neuroscience
Scientists have found a way to restore brain cells impaired by a rare and life-threatening genetic disorder called Timothy syndrome.
A type of drug known as an antisense oligonucleotide allowed clusters of human neurons to develop normally even though they carried the mutation responsible for…
A therapy that restores brain cells impaired by a rare genetic disorder may offer a strategy for treating conditions like autism, epilepsy, and schizophrenia.
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