The Overlooked Organ That Could Hold the Key to Fighting Aging

Scientists are researching ways to regrow the thymus, an immune organ that vanishes with age, to suppress the tolls of aging.

(The thymus [colored orange] is located in the upper chest | NAD.com)

An organ involved in immunity, the thymus, vanishes as people get older, and scientists are researching ways to regrow it to fight aging.

Immunity

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: Male Wistar rats 
Dosage: 1.5 g/kg/day of orally administered glycine for 5 months

Glycine, an amino acid shown to extend the lifespan of mice, moderately extends the lifespan of flies and counters brain and muscle degeneration in aged rats. 

Aging &amp; Longevity

Model: C57BL/6J mice 
Dosage: Eating only within an 8-hour window and fasting for 16 hours (~20% caloric deficit may be required)

Restricting food intake for 16 hours a day improves the health of female mice and moderately prolongs the life of male mice. 

The principal investigators of the study (from left to right): Dr. Carla Green, Dr. Victoria Acosta-Rodriguez, and Dr. Joseph Takahashi (image: dallasnews.com). 

Model: SAMP8 mice 
Dosage: ~25 mg/kg/day of PQQ or PQI administered in food

Supplementing with the antioxidant pyrroloquinoline quinone (PQQ) modestly extends the lifespan of age-accelerated mice while improving their strength.  


Search Result: Muscle

The Overlooked Organ That Could Hold the Key to Fighting Aging

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

Glycine Extends Life & Counters Brain and Muscle Degeneration, New Study Shows

16-Hour Intermittent Fasting Improves Health and Longevity, New Study Confirms

Powerful Antioxidant PQQ Extends Life and Improves Strength, New Study Shows