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Archive for the ‘biotech/medical’ category: Page 478

Dec 4, 2022

Swelling along brain’s axons may be true culprit in Alzheimer’s disease

Posted by in categories: biotech/medical, neuroscience

The formation of amyloid plaques in the brain is a hallmark of Alzheimer’s disease. But drugs designed to reduce accumulations of these plaques have so far yielded, at best, mixed results in clinical trials.

Yale researchers have found, however, that swelling caused by a byproduct of these plaques may be the true cause of the disease’s debilitating symptoms, they report Nov. 30 in the journal Nature. And they identified a biomarker that may help physicians better diagnose Alzheimer’s and provide a target for future therapies.

Continue reading “Swelling along brain’s axons may be true culprit in Alzheimer’s disease” »

Dec 4, 2022

How to cook meat and keep your cancer risk low

Posted by in category: biotech/medical

The types of meat you eat and how you cook them both affect your risk for cancer. Learn how to minimize your risk and still have the flavors you enjoy from nutrition and cancer prevention expert Carrie Daniel-MacDougall, Ph.D.

Dec 4, 2022

What Will Happen After The Technological Singularity? — Ray Kurzweil

Posted by in categories: bioengineering, biotech/medical, life extension, nanotechnology, Ray Kurzweil, robotics/AI, singularity, transhumanism

Ray Kurzweil is an author, computer scientist, inventor, futurist and a director of engineering at Google. Kurzweil is a public advocate for the futurist and transhumanist movements, and gives public talks to share his optimistic outlook on life extension technologies and the future of nanotechnology, robotics, and biotechnology.

Recorded 2013

Dec 4, 2022

HIV Vaccine Trial Makes Pivotal Leap Toward Making ‘Super Antibodies’

Posted by in categories: biotech/medical, genetics

The announcement comes from the journal Science, which published Phase 1 results of a small clinical trial for a vaccine technology that aims to cause the body to create a rare kind of cell.

“At the most general level, the trial results show that one can design vaccines that induce antibodies with pre-specified genetic features, and this may herald a new era of precision vaccines,” William Schief, PhD, a researcher at The Scripps Research Institute and study co-author, told the American Association for the Advancement of Science (AAAS).

The study was the first to test the approach in humans and was effective in 97% – or 35 of 36 – participants. The vaccine technology is called “germline targeting.” Trial results show that “one can design a vaccine that elicits made-to-order antibodies in humans,” Schief said in a news release.

Dec 4, 2022

A Glb1-2A-mCherry reporter monitors systemic aging and predicts lifespan in middle-aged mice Communications

Posted by in categories: biotech/medical, life extension

Aging inevitably increases the risk of disease, as exemplified by CAD, AD, and cancer. Monitoring the aging process and understanding its mechanisms will not only enhance early diagnoses, it may also provide strategies for the early prevention and treatment of diseases. While biomarkers for cellular senescence in in vitro cultured mammalian cells are already well-defined, those that define in vivo senescence/aging at the systemic level remain scarce. Here, we generated a targeted Glb1+/m allele at the Glb1 locus that encodes β-galactosidase. The GAC signal indicates Glb1 level. The results reveal that the live-imaged GAC signal is linearly correlated with chronological age, but only in middle-aged mice (9–13 months). High GAC at the MA stage was associated with cardiac hypertrophy and shortened lifespan. Moreover, GAC signal was exponentially increased in pathological lung fibrosis induced by BLM. Thus, this in vivo reporter mouse can faithfully monitor systemic aging and organ functional decline in a manner closely associated with lifespan, and provides an ideal system for studying aging mechanisms and developing anti-aging manipulations.

The upregulation of p16Ink4a transcription and elevated SAβ-gal staining are both well-established and widely used biomarkers for cellular senescence17, and the former led to the generation of live-imaging aging reporter mice20,22,23. Intriguingly, high level of p16Ink4a, indicated by luciferase activity, predicts cancer initiation rather than lifespan. Similarly, the in vivo application of SAβ-gal as a senescence marker at the tissue level is also limited. Positive SAβ-gal-staining is easy to obtain in kidney and adipose tissue sections but difficult to obtain in blood vessel and heart sections. By SAβ-gal staining, not many positive cells were detected in old individuals26. It raises the question of whether SAβ-gal labels in vivo senescence or if the percentage of in vivo senescent cells is indeed very low.

Dec 4, 2022

New Insight Into Brain Function — Researchers Have Identified a Long-Sought Gene-Encoded Protein

Posted by in categories: biotech/medical, neuroscience

Researchers at Oregon Health & Science University have discovered a key molecule that contributes to understanding and treating neurological diseases like epilepsy and autism.

Researchers at Oregon Health & Science University have discovered a long-sought gene-encoded protein that allows the brain to communicate a number of signals across synapses, or gaps between neurons.

The discovery was recently published in the journal Nature.

Dec 4, 2022

World’s first screening test for pancreatic cancer sees worms sniff out tumors

Posted by in category: biotech/medical

The world’s first early screening test for pancreatic cancer using worms has been developed and deployed by a Japanese biotech firm called Hirotsu Bio Science, according…

Dec 4, 2022

Lab-grown nerve cells to replace those destroyed by Parkinson’s in breakthrough treatment

Posted by in category: biotech/medical

A new treatment for Parkinson’s disease that sees stem cells grown in the laboratory and transformed into nerve cells replace those destroyed by the disease will start first trials with patients in the next few months, according to a report by The Observer published on Sunday.

The treatment aims to stop the spread of the disease’s devastating symptoms.

Dec 4, 2022

Guest speaker Aubrey de Grey, PhD, discuss the possibility of extending life on our channel

Posted by in categories: biotech/medical, life extension

New advances in medical science may improve health of older people and extend lift, perhaps just long enough for more advanced future therapies.#longevity #health #healthspan What is the next step and how can we combine different therapies and test if we can rejuvenate an adult mouse, and humans?Our guest speaker Aubrey de Grey present what may come next.

If you wish to check the links to the sites mentioned in the discussion: https://www.levf.orghealthspanaction.orga4li.orglessdeath.orgTo donate to Longevity Escape Velocity Foundation (LEVF) and to the rejuvenation research:

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Dec 4, 2022

The key to curing cancer in humans may be discovered in dogs

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

The key to curing cancer may be hidden within the genetic differences between humans and dogs. According to scientists working with the National Institutes of Health, dogs get the same diseases that we do, and they have many of the same genes that we do, too.

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