"We think there's a little more of a selective process going on with curiosity." ~ Mary Whatley

No surprise: curiosity changes over the lifespan.

Yes surprise: not in the way you might imagine. There are some advantages to aging...

Mary Whatley, PhD, studies motivated memory, aging and curiosity. She joins me to explore trait versus state curiosity; her recent research on increasing state curiosity as we age; the role of motivation and value of reflection; our own curiosity cost/benefit analyses; and why a good reviewer is a great thing.

Mary Whatley: https://memorylabwcu.weebly.com

Theme music by Sean Balick; “A Certain Lightness” by Migration, via Blue Dot Sessions.

Ep. #296: Curiosity & Successful Aging, with Mary Whatley

BUFFALO, NY — September 2, 2025 — A new #research paper featured on the #cover of Volume 17, Issue 8 of Aging (Aging-US) was #published on July 30, 2025, titled “Exosomes released from senescent cells and circulatory exosomes isolated from human plasma reveal aging-associated proteomic and lipid signatures.”

In this study, led by first authors Sandip Kumar Patel and Joanna Bons, along with corresponding author Birgit Schilling from The Buck Institute for Research on Aging, researchers found that exosomes—tiny particles released by cells—carry molecular signatures that indicate both biological aging and cellular senescence. These signatures include proteins, lipids, and microRNAs associated with inflammation, oxidative stress, and tissue remodeling. The findings could enhance our understanding of biological aging and help in developing future anti-aging therapies.

Senescence is a state in which cells stop dividing but remain metabolically active. These cells often release harmful substances, known collectively as the senescence-associated secretory phenotype (SASP), that can affect nearby tissues. This study shows that exosomes are an important component of this secretory profile.

The researchers analyzed exosomes from senescent human lung cells and from the blood plasma of both young and older adults. They identified over 1,300 proteins and 247 lipids within these particles. Many of these molecules were significantly altered with age.

“In parallel, a small human plasma cohort from young (20–26 years) and old (65–74 years) individuals revealed 1,350 exosome proteins and 171 plasma exosome proteins were altered in old individuals.”

Exosomes from older individuals contained more inflammation-related proteins and fewer antioxidants, while those from senescent cells showed lipid changes associated with membrane integrity and cellular stress. These changes suggest that exosomes may play a role in spreading senescence to nearby cells, a process known as secondary senescence.

The study also identified distinct patterns in microRNAs—small molecules that regulate gene expression—found in the blood of older adults. Some of these, including miR-27a and miR-874, have previously been associated with cognitive decline and chronic illnesses, highlighting their potential as biomarkers for biological aging.

Although the study involved a limited number of samples, it provides strong early evidence that exosomes reflect the molecular changes associated with aging. By showing how these particles carry and possibly spread aging-related signals throughout the body, the research opens new possibilities for diagnosing and treating age-related diseases.

DOI - https://doi.org/10.18632/aging.206292

Corresponding author - Birgit Schilling – bschilling@buckinstitute.org

Video short - https://www.youtube.com/watch?v=tcyAZahw-g8

Keywords - aging, proteomics, senescence, exosomes, data-independent acquisitions

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Aging (Aging-US)

New Study Links Exosomes to Biological Aging

You’ve probably heard NAD (nicotinamide adenine dinucleotide) called the “miracle molecule” for anti-aging — but how much of that is science, and how much is hype? In this video, I break down: 
🔍 What NAD actually does in the body 
⏳ How NAD levels change as we age 
💊 The truth about supplements like NMN and NR 
📊 What the latest research really says about energy, skin health, metabolism, and longevity. 

There are so many bold promises out there, and I know it’s easy to get confused. My goal is to cut through the noise and share what the science really shows — so you can make informed, evidence-based choices about your midlife wellness.

Demystifying NAD+ and Longevity Claims| Empowering Midlife Wellness

Signs of Aging

BUFFALO, NY — September 4, 2025 — A new #research perspective was #published  in Volume 17, Issue 8 of Aging (Aging-US) on August 16, 2025, titled “Age-related diseases as a testbed for anti-aging therapeutics: the case of idiopathic pulmonary fibrosis.”

In this research perspective, Alex Zhavoronkov, Dominika Wilczok, Feng Ren, and Fedor Galkin, from Insilico Medicine, Buck Institute for Research on Aging, and Duke University, propose a new method to evaluate age-related diseases based on how closely they align with the biological processes of aging. Their analysis shows that idiopathic pulmonary fibrosis (IPF), a progressive lung condition, is one of the diseases most strongly associated with aging. This makes IPF a promising model for testing new anti-aging therapies with the potential to treat multiple age-related conditions.

“This perspective explores how aging-related diseases (ARDs) can serve as experimental platforms for discovering new geroprotective interventions.”

While many age-related diseases are used as models for aging research, not all accurately reflect the biology of aging. To address this, the authors developed a scoring system that measures how closely a disease is connected to the key hallmarks of aging, such as inflammation, genetic instability, and impaired cellular repair. Using this system, they evaluated 13 common age-related diseases and found that IPF had a particularly high overlap with aging biology.

IPF is a chronic disease that causes scarring in the lungs and a rapid decline in lung function. In contrast to the gradual loss of function seen in normal aging, IPF progresses more than five times faster. The authors highlight that IPF shares nearly all of the biological features associated with aging. These similarities make IPF a strong candidate for studying aging and testing therapies that target its underlying causes.

The authors also discuss different therapies currently being developed for IPF that are also designed to address aging itself. These include drugs that clear senescent cells, activate telomerase to maintain chromosome health, or repair damaged signaling between cells. Some of these treatments, such as senolytic combinations and AI-discovered compounds like rentosertib, are already showing early promise in preclinical or clinical trials.

In addition, the authors point out that IPF’s fast progression and clearly measurable outcomes offer an advantage for clinical testing. If a therapy proves effective in IPF, it may also be useful for other conditions that share similar aging-related mechanisms, including diabetes, arthritis, and heart disease. This approach could accelerate drug development and reduce costs by focusing on therapies that target shared biological pathways.

Overall, this perspective supports a shift in pharmaceutical research toward treating aging as an underlying cause of many chronic diseases. By positioning IPF as a model for aging-related drug development, the authors propose a strategic pathway for testing and expanding anti-aging therapies across a wide range of health conditions.

DOI - https://doi.org/10.18632/aging.206301

Corresponding author - Alex Zhavoronkov – alex@insilico.com

Video short - https://www.youtube.com/watch?v=p5ur7itzvSI

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MEDIA@IMPACTJOURNALS.COM

Idiopathic Pulmonary Fibrosis Identified as a Model for Anti-Aging Drug Development

As the global population grows older, understanding what drives the aging process is becoming increasingly important. Diseases like Alzheimer’s, cardiovascular conditions, and cancer are more common with age, yet many current treatments only manage symptoms rather than addressing the underlying biological causes.

One contributor to aging is the buildup of “senescent” cells—cells that have stopped dividing but do not die. These cells can harm nearby tissues by releasing molecular signals, a process known as secondary senescence.

Scientists have found that senescent cells release tiny particles called exosomes. A research team from The Buck Institute for Research on Aging recently discovered that these exosomes carry aging-related messages through the bloodstream. Their study, titled “Exosomes released from senescent cells and circulatory exosomes isolated from human plasma reveal aging-associated proteomic and lipid signatures,” was featured as the cover article in Aging (Aging-US), Volume 17, Issue 8.

Full blog - https://aging-us.org/2025/09/how-exosomes-spread-aging-signals-and-could-support-anti-aging-research/

Paper DOI - https://doi.org/10.18632/aging.206292

Corresponding author - Birgit Schilling - bschilling@buckinstitute.org

Video short - https://www.youtube.com/watch?v=tcyAZahw-g8

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Keywords - aging, proteomics, senescence, exosomes, data-independent acquisitions

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MEDIA@IMPACTJOURNALS.COM

How Exosomes Spread Aging Signals and Could Support Anti-Aging Research

BUFFALO, NY — September 9, 2025 — A new #research paper was #published in Volume 17, Issue 8 of Aging-US on August 1, 2025, titled “Causal relationships between gut microbiome and hundreds of age-related traits: evidence of a replicable effect on ApoM protein levels.”

In this study, Federica Grosso, Daniela Zanetti, and Serena Sanna from the Institute for Genetic and Biomedical Research (IRGB) of the National Research Council (CNR), Italy, uncovered new associations between gut microbiome and the aging process. The researchers found that certain microbial characteristics may causally influence proteins in the blood linked to inflammation and heart health. These findings could help explain how age-related diseases like cardiovascular conditions and macular degeneration are influenced by changes in the gut ecosystem.

The gut microbiome, the collection of microorganisms living in the digestive system, plays a major role in immune function and metabolic health. As people age, this microbial community shifts, often leading to imbalances associated with inflammation and chronic disease. To explore how these changes might affect the body, the researchers used Mendelian Randomization—a method that leverages genetic data—to test over 55,000 possible causal connections between gut microbial characteristics and age-related health indicators.

The study identified 91 significant causal relationships. Among them, the researchers found that higher levels of certain gut bacteria were associated with increased risk of age-related macular degeneration. Another finding was the association between a metabolic pathway in the gut, called “purine nucleotides degradation II,” and lower levels of apolipoprotein M (ApoM), a protein that helps protect against heart disease. This result was validated using data from an independent study, strengthening the evidence.

“Unlike previous studies, we performed replication analyses for the significant results using independent GWAS datasets, a fundamental step that has often been overlooked.”

The study also revealed how some bacteria may affect protein levels differently depending on a person’s blood type. Specifically, in individuals with blood type A, certain gut microbes that can break down a sugar called GalNAc may influence proteins related to inflammation and cardiovascular health. This suggests that personalized approaches to managing age-related diseases could consider both gut microbiota and genetic factors like blood type.

The research team followed strict guidelines to reduce false findings and confirmed its key results in independent datasets. By carefully testing for reverse causality and other biases, the authors provided strong evidence that the gut microbiome can influence critical aspects of aging biology.

Although more research is needed to fully understand the biological pathways involved, these findings suggest that targeting the gut microbiota might help delay or reduce age-related inflammation and disease. The study lays a foundation for future therapeutic strategies that could include diet, probiotics, or other microbiome-based interventions.

DOI - https://doi.org/10.18632/aging.206293

Corresponding author - Serena Sanna - serena.sanna@cnr.it

Abstract video - https://www.youtube.com/watch?v=CWky6jlHKUs

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Aging-US

Gut Microbiome Influences Proteins That Drive Aging and Disease

The Weight of Years" is a reflective song about the passage of time and the beauty hidden within aging. It captures the quiet poetry of wrinkles, memories, and slowing footsteps — not as losses, but as reminders of a life fully lived. With a tender balance of nostalgia and acceptance, the song invites listeners to see aging not as an ending, but as a transformation where wisdom, love, and clarity endure.

The weight of years

We’ve all heard the advice: squeeze a stress ball to strengthen your grip and improve longevity. But the truth is, there’s much more to the story. In this video, I break down what grip strength really tells us about our health — and why it’s not just about your hands. Good grip strength reflects muscle mass, neuromuscular function, and independence as we age. That means the real path forward isn’t squeezing something on the couch — it’s building whole-body strength, eating nutrient-dense foods, getting quality sleep, and creating sustainable habits. 
I’ll share: 
✔️ Why grip strength is linked to longevity 
✔️ How muscle mass, not gadgets, drives better outcomes 
✔️ The role of nutrition, exercise, and recovery in healthy aging 
✔️ Practical ways to strengthen your body for long-term health Longevity isn’t about quick fixes.
 It’s about doing the fundamentals properly — and consistently. Join me as we go beyond the stress ball and into the bigger picture of living well for the long run.

Longevity & Grip Strength: Beyond the Stress Ball

BUFFALO, NY — September 11, 2025 — A new #research paper was #published  in Volume 17, Issue 8 of Aging-US on August 8, 2025, titled “AI-driven toolset for IPF and aging research associates lung fibrosis with accelerated aging.”

In this study, researchers Fedor Galkin, Shan Chen, Alex Aliper, Alex Zhavoronkov, and Feng Ren from Insilico Medicine used artificial intelligence (AI) to investigate the similarities between idiopathic pulmonary fibrosis (IPF), a severe lung disease, and the aging process. Their findings show that IPF is not simply accelerated aging, but a distinct biological condition shaped by age-related dysfunction. This insight may lead to a new approach in how scientists and clinicians treat this complex disease.

IPF mainly affects individuals over the age of 60. It causes scarring of lung tissue, making it harder to breathe and often leading to respiratory failure. Current treatments can slow the disease but rarely stop or reverse its progression. The researchers used AI to identify shared biological features between aging and fibrosis, finding new potential targets for therapy.

The team developed a “proteomic aging clock” based on protein data from more than 55,000 participants in the UK Biobank. This AI-driven tool accurately measured biological age and found that patients with severe COVID-19, who are at increased risk for lung fibrosis, also showed signs of accelerated aging. This suggests that fibrosis leaves a detectable biological trace, supporting the use of aging clocks in studying age-related diseases.

“For aging clock training, we used the UK Biobank collection of 55319 proteomic Olink NPX profiles annotated with age and gender.”

They also developed a custom AI model, ipf-P3GPT, to compare gene activity in aging lungs versus those with IPF. Although some genes were active in both, many showed opposite behavior. In fact, more than half of the shared genes had inverse effects. This means IPF does not just speed up aging but also disrupts the body’s normal aging pathways.

The study identified unique molecular signatures that distinguish IPF from normal aging. While both involve inflammation and tissue remodeling, IPF drives more damaging changes to lung structure and repair systems. This difference could guide the development of drugs that specifically target fibrosis without affecting normal aging.

By combining AI with large-scale biological data, the study also introduces a powerful toolset for examining other age-related conditions such as liver and kidney fibrosis. These models may support personalized treatments and expand understanding of the relationships between aging and disease, opening new directions for therapy development.

DOI - https://doi.org/10.18632/aging.206295

Corresponding author - Alex Zhavoronkov - alex@insilico.com

Abstract video - https://www.youtube.com/watch?v=24lX2lHbt7o

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Keywords - aging, IPF, generative AI, transformer, proteomics

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AI Tools Uncover New Link Between Idiopathic Pulmonary Fibrosis and Aging

Praying With The Eyes is a ministry of Family of Christ Lutheran Church in Colorado Springs which combines the beauty of God's Word with the beauty of his creation.

Choose to be Curious is a show all about curiosity. We talk about research and theory, but mostly it's conversations about how curiosity shows up in work and life.  

Now syndicated and available via Pacifica RadioNetwork.

Aging-US is dedicated to advancing our understanding of the biological mechanisms that drive aging and the development of age-related diseases. Our mission is to serve as a platform for high-quality research that uncovers the cellular, molecular, and systemic processes underlying aging, and translates these insights into strategies to extend healthspan and delay the onset of chronic disease.

Read about the Aging (Aging-US) Scientific Integrity Process: https://aging-us.com/scientific-integrity

I write songs, sing when I feel brave, and produce for artists who let me touch buttons. Genre? Whatever sounds good. Feel something? Good—that means it’s working. Music’s my therapy, yours too maybe.

Meet Dr. Susan, a renowned Board-Certified Gynecologist and Certified Menopause Practitioner through the Menopause Society (former NAMS), focused on hormone optimization, sexual wellness, and longevity. She's the pioneering force behind the Complete Midlife Wellness Center in Houston, TX, and the best-selling author of "Sexually Woke." Tune into her engaging podcast, "Empowering Midlife Wellness," for insightful conversations. Boasting numerous accolades, including the Texas Super Doctor award and being consistently rated among Houston's top gynecologists, Dr. Susan combines her medical expertise with her passion as an ICF-certified life and leadership coach. Outside the clinic, she's a fitness enthusiast, marathon runner, Ironman triathlete, and mother of three young adults. Join her YouTube channel for empowering wellness strategies designed for midlife and beyond.

Content is for informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your health care provider with any questions you have regarding a medical or mental health condition, and before undertaking any diet, dietary supplement, exercise, or other health program.

New tracks tagged #Aging