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Archive for the ‘biotech/medical’ category: Page 211

Apr 5, 2024

RNA Molecules in Brain Nerve Cells Display Lifelong Stability

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

Certain RNA molecules in the nerve cells in the brain last a life time without being renewed. Neuroscientists from Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) have now demonstrated that this is the case together with researchers from Germany, Austria and the USA. RNAs are generally short-lived molecules that are constantly reconstructed to adjust to environmental conditions. With their findings that have now been published in the journal Science, the research group hopes to decipher the complex aging process of the brain and gain a better understanding of related degenerative diseases.

Most cells in the human body are regularly renewed, thereby retaining their vitality. However, there are exceptions: the heart, the pancreas and the brain consist of cells that do not renew throughout the whole lifespan, and yet still have to remain in full working order. “Aging neurons are an important risk factor for neurodegenerative illnesses such as Alzheimer’s,” says Prof. Dr. Tomohisa Toda, Professor of Neural Epigenomics at FAU and at the Max Planck Center for Physics and Medicine in Erlangen. “A basic understanding of the aging process and which key components are involved in maintaining cell function is crucial for effective treatment concepts:”

In a joint study conducted together with neuroscientists from Dresden, La Jolla (USA) and Klosterneuburg (Austria), the working group led by Toda has now identified a key component of brain aging: the researchers were able to demonstrate for the first time that certain types of ribonucleic acid (RNA) that protect genetic material exist just as long as the neurons themselves. “This is surprising, as unlike DNA, which as a rule never changes, most RNA molecules are extremely short-lived and are constantly being exchanged,” Toda explains.

Apr 5, 2024

Newly Approved Rapid Blood Test for Traumatic Brain Injury Could Speed Up Treatment for Troops

Posted by in categories: biotech/medical, military, neuroscience

The Food and Drug Administration has approved a blood test to detect concussion that produces results in minutes rather than hours — a breakthrough that could help expedite treatment for service members with traumatic brain injuries, according to the U.S. Army and Abbott Laboratories, the…


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“This can help get the most severely injured service members to neurosurgeons faster and ultimately save lives,” Lt. Col. Bradley Dengler, neurosurgical consultant to the U.S. Army Office of the Surgeon General, said in a release.

Continue reading “Newly Approved Rapid Blood Test for Traumatic Brain Injury Could Speed Up Treatment for Troops” »

Apr 4, 2024

Study reveals that the brain’s cerebellum can shape cognition

Posted by in categories: biotech/medical, neuroscience

If you reward a monkey with some juice, it will learn which hand to move in response to a specific visual cue—but only if the cerebellum is functioning properly. So say neuroscientists at the University of Pittsburgh School of Medicine and Columbia University, who recently published findings in Nature Communications that show the brain region plays a crucial role in reward-based learning.

Apr 4, 2024

Weak waste removal in the brain linked to Alzheimer’s

Posted by in categories: biotech/medical, neuroscience, supercomputing

A combination of advances in magnetic resonance imaging to help track the movement of fluids in the brain and supercomputer-powered simulations are modifying our understanding of cognitive decline.

Apr 4, 2024

Groundbreaking trial to grow ‘mini liver’ from patient’s own lymph node

Posted by in categories: biotech/medical, health

Pittsburgh biotech grows second liver in-body:


As per Nature, the experimental procedure was conducted in Houston on March 25. The report also states that the patient is “recovering well” after receiving the treatment. However, the formation of the new liver-like organ in the lymph node may take several months.

Moreover, the individual will be kept on immunosuppressive drugs to prevent any initial rejection of the donor cells.

Continue reading “Groundbreaking trial to grow ‘mini liver’ from patient’s own lymph node” »

Apr 4, 2024

Repair Bio’s gene therapy rapidly reverses atherosclerosis in mice

Posted by in category: biotech/medical

Company eyes clinical trials of mRNA therapy targeting intracellular free cholesterol after receiving ‘favorable’ pre-IND feedback.

Apr 4, 2024

Primary care strategy did not reduce hospitalizations at one year in kidney-dysfunction triad: ICD-Pieces study

Posted by in categories: biotech/medical, health, information science

USA: Using an electronic health record (EHR)-based algorithm plus practice facilitators embedded in primary care clinics did not reduce hospitalization at one year, according to a pragmatic trial involving patients with the triad of chronic kidney disease, hypertension, and type 2 diabetes.

“The hospitalization rate of patients in the intervention group at one year was about the same as that with usual care (20.7% vs 21.1%),” the researchers reported in the ICD-Pieces study published in the New England Journal of Medicine.

Patients with chronic kidney disease (CKD), type 2 diabetes (T2D), and hypertension (the kidney-dysfunction triad) are at high risk for multiple complications, end-stage kidney disease, and premature death. Despite the availability of effective therapies for these patients, there is a lack of results of large-scale trials examining the implementation of guideline-directed therapy to reduce death and complications risk in this population.

Apr 4, 2024

World’s most powerful MRI machine captures first stunning brain scans

Posted by in categories: biotech/medical, neuroscience

The world’s most powerful MRI machine has started proving its worth, by scanning living human brains. The resulting images give an ultra high resolution glimpse into the brain, which will help us better understand the nature of consciousness and treat neurodegenerative diseases.

Developed by the French Alternative Energies and Atomic Energy Commission (CEA), the Iseult MRI machine packs a magnetic field strength of 11.7 Teslas (T). By comparison, conventional MRI machines in wide use in hospitals today are usually 1.5 or at most 3 T.

Continue reading “World’s most powerful MRI machine captures first stunning brain scans” »

Apr 4, 2024

Are you ready for CRISPR? Because the gene-editing technology is already impacting the food we eat

Posted by in categories: biotech/medical, genetics

You’ve probably heard about the gene-editing technology CRISPR. The massive biotech breakthrough, which has emerged in the last decade, has mainly been touted for the ways it will let scientists edit the human genome — hopefully to cure genetic diseases or perhaps, more worryingly, to create “designer babies.” But CRISPR is also being used in another area, the world of food.

Cultural anthropologist Dr. Lauren Crossland-Marr hosts the five-episode podcast A CRISPR Bite. She takes listeners into labs as researchers tinker with the genes in what we eat and drink. What, exactly, are they trying to achieve? And what’s at stake?

Apr 4, 2024

Seven diseases CRISPR technology could cure

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

Using this natural process as a basis, scientists developed a gene-editing tool called CRISPR/Cas that can cut a specific DNA sequence by simply providing it with an RNA template of the target sequence. This allows scientists to add, delete, or replace elements within the target DNA sequence. Slicing a specific part of a gene’s DNA sequence with the help of the Cas9 enzyme, aids in DNA repair.

This system represented a big leap from previous gene-editing technologies, which required designing and making a custom DNA-cutting enzyme for each target sequence rather than simply providing an RNA guide, which is much simpler to synthesize.

CRISPR gene editing has already changed the way scientists do research, allowing a wide range of applications across multiple fields. Here are some of the diseases that scientists aim to tackle using CRISPR/Cas technology, testing its possibilities and limits as a medical tool.

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