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Category: life extension – Page 10

A new class of Alzheimer’s biomarkers: Why protein shape may beat protein levels

Researchers have identified a new type of blood-based biomarker test for Alzheimer’s disease that measures structural changes in proteins, providing more information on the underlying biology of the disease than standard blood tests. The findings, published in Nature Aging, also provide new insights into how Alzheimer’s disease biology may differ between males and females.

“This work introduces a fundamentally new, blood-based approach to detecting and staging Alzheimer’s disease,” said Dr. Richard Hodes, director of NIH’s National Institute on Aging (NIA). “By revealing protein structural changes associated with genetic risk, symptom severity, and sex differences—features not captured by existing biomarkers—this research could enable earlier diagnosis and more effective clinical trials.”

A biotech company just doubled the lifespan of mice without changing their diet and without editing their genes

Instead, they trained the immune system to hunt down and destroy the cells that make the body age. Then they flooded the body with fresh stem cells to rebuild what was lost.

This isn’t science fiction. It’s longevity science happening right now.

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Attenuating age-related decline in dendritic cell migration improves vaccine efficacy via gut-immune crosstalk

Dai and colleagues implicate defective dendritic cell migration in impaired vaccine responses in aged mice. Oral delivery of yeast-derived nanoparticles promotes migration of dendritic cells from the gut to lymph nodes and restores vaccine efficacy in aged mice.

Muscle repair may hinge on a timed metabolic ‘switch,’ study suggests

Scientists at the University of California, Irvine’s School of Pharmacy & Pharmaceutical Sciences have discovered how muscle stem cells “flip a switch” to rebuild damaged muscle—a finding that could help address muscle loss linked to aging, injury and widely used weight-loss medications.

The study, published this week in Nature Metabolism, shows that muscle recovery is not just about protein or exercise. It depends on timing and how muscle cells use fuel.

Researchers learned that immediately after stress, muscle stem cells temporarily slow down energy production. Instead of burning glucose for energy, they reroute it into protective repair processes to produce antioxidants that reduce inflammation. Once repairs are complete, energy production ramps back up and new muscle fibers form and strengthen.

Long-living wild mouse may hold secret to healthy aging

When it comes to health, some of our animal neighbors have extraordinary advantages. Ostriches, for example, are highly resistant to viruses, while sharks rarely develop cancer. And species like naked mole rats and bowhead whales live for astonishingly long periods of time, decades and centuries, respectively.

Researchers are now starting to understand why another species—the golden spiny mouse—seems to be unhindered by the negative health effects that typically accompany aging.

Reporting in Science Advances, researchers at Yale School of Medicine (YSM) have begun to uncover how this wild mouse, native to rocky deserts in the Middle East, resists physical, cognitive, and immunological decline while living six to seven times longer than other wild mice.

Cellular Reprogramming: The Expert Roundup

Cellular reprogramming is one of the technologies most associated with longevity. The field was created in 2006, when Shinya Yamanaka showed that a cocktail of four transcription factors, commonly known as OSKM, can cause de-differentiation and massive rejuvenation of a cell, creating an iPSC (induced pluripotent stem cell). About a decade later, partial reprogramming was demonstrated in vivo, where a more subtle application of the factors led to rejuvenation without compromising the cell’s identity.

Today, this field is maturing quickly, with its first clinical trials just around the corner. Academic teams and companies are working on dozens of directions and applications. We asked four experts, all involved in reprogramming-related biotech companies, to talk about their companies’ approaches and the opportunities and bottlenecks that the field faces and to offer predictions for the near and not-so-near future.

What I find most compelling about cellular reprogramming is that it revealed aging to be, at least in part, an actively maintained biological state rather than irreversible accumulation of damage. The discovery that somatic cells retain a latent capacity to reset their epigenetic and functional identity fundamentally changed how we think about cellular plasticity, identity, and time.

BREAKTHROUGH 100% Lifespan Increase With Senovax & Stem Cells! #shorts

Groundbreaking research reveals senolytics combined with stem cells can double lifespan. This isn’t a small improvement; it’s a revolutionary leap in regenerative medicine, supporting a new paradigm. #Longevity #RegenerativeMedicine #StemCells #Senolytics #HealthTech @immortabio

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Dietary Patterns and Indicators of Cognitive Function

Greater adherence to the DASH diet, plant-based dietary patterns, or diets with lower hyperinsulinemia and inflammation was associated with lower risk of subjective cognitive decline and better cognitive function in adults.

Question Are healthy dietary patterns associated with lower risk of subjective cognitive decline and better objectively measured cognitive function?

Findings In this cohort study performing a systematic evaluation of 6 dietary patterns among 159 347 participants, greater adherence to a healthy diet, exemplified by the Dietary Approaches to Stop Hypertension (DASH) diet, was associated with lower risk of subjective cognitive decline and better objectively measured cognitive function. The associations were most pronounced when the diet was followed during midadulthood (ages 45–54 years).

Meaning Results suggest that a healthy diet, such as the DASH diet, was associated with early indicators of cognitive aging, which underscores the importance of a healthy diet for maintaining long-term cognitive health.

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