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Archive for the ‘biotech/medical’ category: Page 288

Dec 24, 2023

A Grave Warning About Antarctica Is Encoded in Octopus DNA

Posted by in categories: biotech/medical, health

Ocean bays that pinch West Antarctica are home to two distinct populations of Turquet’s octopus (Pareledone turqueti). The shared secrets of their ancestors do not bode well for the future health of our planet.

A new DNA analysis of the two geographically separated octopus populations indicates they were once part of one big family.

This direct historical connection suggests that around 125,000 years ago, the massive 2.2 million cubic kilometer (530,000 cubic mile) West Antarctic Ice Sheet (WAIS) that separates the two bays had fully collapsed into the sea.

Dec 24, 2023

Alcohol Abuse Linked to Permanent Brain Damage and Wernicke-Korsakoff Syndrome in US Crisis

Posted by in categories: biotech/medical, neuroscience

Facing an alcohol crisis, the US sees 12% of adult deaths linked to abuse. Excessive drinking risks permanent brain damage, Wernicke-Korsakoff Syndrome. Symptoms mimic drunkenness and can lead to irreversible psychosis. Prevention? Cut back or quit. Concerned? Seek medical advice for potential Vitamin B1 treatment.

Dec 24, 2023

DNA repair‐deficient premature aging models display accelerated epigenetic age

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

Aging Cell is an open access geroscience journal addressing the biology of aging, from molecular mechanisms of aging to age-related disease.

Dec 24, 2023

Researchers develop first high-precision dual-color optoelectronic brain probe

Posted by in categories: biotech/medical, neuroscience

A team of researchers at the University of Massachusetts Amherst has developed the first dual-color optoelectronic neural probe.

Unlike previous, single probes, which often control activity in only one direction—excitation or inhibition, but not both—this new design can enhance and silence the electrical activities of the same neurons within specific cortical layers of the brain. It promises aid the investigation of tightly packed neural microcircuits within the cortex and deep brain regions and, in the longer term, add to the functional mapping of the brain.

Guangyu Xu, assistant associate professor of electrical and , an appointee of the Dev and Linda Gupta Professorship at UMass Amherst, and principal investigator of the study hopes the device can ultimately help researchers identify the origin of brain diseases.

Dec 23, 2023

Transforming the understanding of brain immunity

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

A review discusses the current perception of brain immunity and its implications for brain aging, diseases, and immune-based therapies.

Dec 23, 2023

Apple Watch 9, Ultra 2 models now banned in US, old repairs uncertain

Posted by in categories: biotech/medical, electronics

The ban on selling Apple Watches with blood-oxygen sensors also impacts the repairs of any Apple Watch with the same feature.

Dec 23, 2023

The code is cracked, but the best is yet to come

Posted by in category: biotech/medical

The Human Genome Project promised medical advances from knowledge of the DNA inside nearly every human cell. Now, around 20 years later, nucleic acids — the building blocks of DNA and RNA — are at the centre of powerful approaches to new medicines.

Dec 23, 2023

Palindromic Puzzles Solved: The Hidden Mechanism of Gene Creation

Posted by in category: biotech/medical

Researchers at the University of Helsinki have uncovered a mechanism that instantaneously generates DNA palindromes, potentially leading to the creation of new microRNA genes from noncoding DNA sequences. This discovery, which was made while studying DNA replication errors and their impact on RNA molecule structures, offers new insights into gene origins.

The complexity of living organisms is encoded within their genes, but where do these genes come from? Researchers at the University of Helsinki resolved outstanding questions around the origin of small regulatory genes, and described a mechanism that creates their DNA palindromes. Under suitable circumstances, these palindromes evolve into microRNA genes.

Genes and proteins: the building blocks of life.

Dec 23, 2023

This first CRISPR gene-editing treatment is just the beginning. Here’s what’s coming next

Posted by in categories: bioengineering, biotech/medical, chemistry, food, genetics, robotics/AI

2023 was the year that CRISPR gene-editing sliced its way out of the lab and into the public consciousness—and American medical system. The Food and Drug Administration recently approved the first gene-editing CRISPR therapy, Casgevy (or exa-cel), a treatment from CRISPR Therapeutics and partner Vertex for patients with sickle cell disease. This comes on the heels of a similar green light by U.K. regulators in a historic moment for a gene-editing technology whose foundations were laid back in the 1980s, eventually resulting in a 2020 Nobel Prize in Chemistry for pioneering CRISPR scientists Jennifer Doudna and Emmanuelle Charpentier.

That decades-long gap between initial scientific spark, widespread academic recognition, and now the market entry of a potential cure for blood disorders like sickle cell disease that afflict hundreds of thousands of people around the world is telling. If past is prologue, even newer CRISPR gene-editing approaches being studied today have the potential to treat diseases ranging from cancer and muscular dystrophy to heart disease, birth more resilient livestock and plants that can grapple with climate change and new strains of deadly viruses, and even upend the energy industry by tweaking bacterial DNA to create more efficient biofuels in future decades. And novel uses of CRISPR, with assists from other technologies like artificial intelligence, might fuel even more precise, targeted gene-editing—in turn accelerating future discovery with implications for just about any industry that relies on biological material, from medicine to agriculture to energy.

With new CRISPR discoveries guided by AI, specifically, we can expand the toolbox available for gene editing, which is crucial for therapeutic, diagnostic, and research applications… but also a great way to better understand the vast diversity of microbial defense mechanisms, said Feng Zhang, another CRISPR pioneer, molecular biologist, and core member at the Broad Institute of MIT and Harvard in an emailed statement to Fast Company.

Dec 23, 2023

4 MOST Promising Longevity Molecules You NEED To Know

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

7 month treatment, 6 years returned according to a methylation clock, mostly in people who’s biological age was greater than their calendar age.


Dr. Brian Kennedy presents 4 molecules which show promising effects in both healthspan & lifespan in this video. https://pubmed.ncbi.nlm.nih.gov/37289866/httphttps://pubmed.ncbi.nlm.nih.gov/37637https://pubmed.ncbi.nlm.nih.gov/37925https://pubmed.ncbi.nlm.nih.gov/35584https://pubmed.ncbi.nlm.nih.gov/35050https://pubmed.ncbi.nlm.nih.gov/28199https://pubmed.ncbi.nlm.nih.gov/37904https://pubmed.ncbi.nlm.nih.gov/37697https://pubmed.ncbi.nlm.nih.gov/37217https://pubmed.ncbi.nlm.nih.gov/34952https://pubmed.ncbi.nlm.nih.gov/34847

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