Protein Restriction and Longevity: Can Limiting Protein Intake Support Healthy Aging?

University of Wisconsin researchers examine how reducing dietary protein intake may reshape nutrient sensing, metabolism, mitochondrial function, and other pathways linked to healthier aging.

(One of the leading authors on the Cell Press Blue article, Dr. Dudley Lamming | University of Wisconsin)

Researchers examine how restricting protein intake can improve metabolic health and influence aging-related pathways to extend healthspan and lifespan.

Aging &amp; Longevity

Model: 6- to 8-week-old male C57BL/6J mice
Dosage: 0.5 mg/kg of isolated mitochondria injected every two days for six injections in the tail vein

Mitochondrial Transplantation Rejuvenates Aging Hearts, Study Finds

Transplantation of the cell’s powerhouses (mitochondria) improves heart function by restoring mitophagy (the cellular process that clears damaged mitochondria) in a mouse model of cardiac aging.

(An image depicting mitochondria [ovoid structures] in cardiac tissue | NAD.com)

Mitochondrial transplantation improves heart function by restoring the cellular process that clears damaged mitochondria in a mouse model of cardiac aging.

Cardiovascular

Finalist Teams Awarded $1 Million in XPrize Healthspan Contest to Transform Healthy Aging

The XPrize Healthspan—which will split $101 million among teams developing therapeutics to restore muscle, cognitive, and immune function in older adults—has named 10 teams receiving $1 million each.

(XPrize announced the finalists for its XPrize Healthspan competition | XPrize)

The XPrize Healthspan competition has named its top 20 finalist groups that will submit their aging intervention therapies for human trial testing.

Model: Female Balb/c mice exposed to ultraviolet radiation 
Dosage: 2%, 5%, 7.5%, or 12.5% of nicotinamide (weight/volume) applied topically, once daily, five times per week

The NAD+ (nicotinamide adenine dinucleotide) precursor nicotinamide prevents skin aging, in part by targeting age-promoting senescent cells in mice. 


Model: Skin, arterial, and lens tissue from donors between the ages of 20 and 25 and also 75 
Dosage: 5 µM solution of CMLase, incubated overnight

Bioengineered Enzyme Shows Ability to Reverse Molecular Aging in Human Tissue

An engineered enzyme reverses age-related protein damage that researchers have long thought irreversible in human eye, skin, and artery tissues.

(A bioengineered enzyme [purple structure] cleaves a prevalent type of AGE [brown glob] on protein residues that are part of protein filaments [dull green chains] | The Scientist)

A bioengineered enzyme reverses age-related protein damage, long thought of as irreversible damage, in human lens, skin, and artery tissues.

Search Result: hallmarks of aging

Protein Restriction and Longevity: Can Limiting Protein Intake Support Healthy Aging?

Mitochondrial Transplantation Rejuvenates Aging Hearts, Study Finds

10 Finalist Teams Awarded $1 Million in XPrize Healthspan Contest to Transform Healthy Aging

NAD+ Booster Nicotinamide Counters Skin Aging and Cell Senescence, New Study Shows

New Research: Bioengineered Enzyme Shows Ability to Reverse Molecular Aging in Human Tissue