University of Southern California (USC) scientists help to uncover why human intelligence declines with age, pointing to a newly discovered cellular target.


The principal investigator on the study, Dr. Michael Bonaguidi (image: usc.edu).

Brain &amp; Neurons

Model: Eight-week-old C57BL/6J mice treated with 300 mg/kg/day of D-galactose by subcutaneous injections for eight weeks
Dosage: 100 mg/kg/day of NMN in drinking water for eight weeks and 5 × 10 5 hUC-MSCs suspended in 150 µL of PBS via tail vein injection on the first day of weeks five through seven

NMN Enhances Stem Cell Therapy’s Effects on Immune Aging in Latest Study

Combining NMN with umbilical cord–derived stem cells improved motor and cognitive function while reducing markers of immune aging in mice with chemically induced aging.

(An image of human umbilical cord-derived mesenchymal stem cells under a microscope | NAD.com)

NMN with a stem cell therapy reduced markers of immune aging and improved coordination and memory performance in mice with chemically induced aging-like changes.

Immunity

The Future of Longevity: Could Humans Really Live to 150?

A TIME Magazine longevity panel, featuring Harvard’s David Sinclair, explores whether breakthroughs in AI, cellular rejuvenation, and research on sex differences could help today’s children live far longer.

(An image illustrating the possibility of some humans achieving a 150-year lifespan in the future | NAD.com)

David Sinclair and Jennifer Garrison discuss whether AI advancements, cellular rejuvenation techniques, and research on sex differences can make a 150-year lifespan possible.

Aging &amp; Longevity

Aging Clocks Applied to Human Trial Data Support AI-Designed Drug Lowering Age

Six proteomics-based aging clocks (age assessments from large-scale analyses of proteins) agreed that patients treated with the AI-designed drug rentosertib appeared younger.

(A vial containing rentosertib tablets | New York Times)

The AI-designed drug rentosertib was shown to lower biological age across six aging clocks in patients with idiopathic pulmonary fibrosis.

Model: 20-month-old female C57BL/J mice 
Dosage: 10 nmol/kg/day of semaglutide

Semaglutide extends mouse lifespan and targets signs of aging, such as diminished NAD+, while mimicking the anti-aging effects of caloric restriction (consuming fewer calories). 


The study was led by Dr. Danica Chen (image: berkeley.edu). 

Search Result: cognitive decline

Beyond Neurons: New Study Pinpoints Immature Brain Cells Behind Age-Related Drops in Intelligence

NMN Enhances Stem Cell Therapy’s Effects on Immune Aging in Latest Study

The Future of Longevity: Could Humans Really Live to 150?

Aging Clocks Applied to Human Trial Data Support AI-Designed Drug Making People Younger

Semaglutide (Ozempic) Prolongs Lifespan & Boosts NAD+ in Mice, New Study Shows