Could Aging Leave a "Memory" That Spreads and Even Passes to the Next Generation?

A new aging model posits that aging imprints signatures across molecular, tissue, and organ system levels, and these signatures may also transmit across generations.

(A new theory posits that imprinted cellular signatures of aging can transmit between generations | NAD.com)

A new theory posits that aging imprints molecular-, cellular-, tissue-, and organ system-level signatures that may transmit across generations.

Aging &amp; Longevity

Model: Young C57BL/6J mice fed a high protein (56% of daily calories) diet for 20 weeks 
Dosage: Injection with either 400 mg/kg of NMN or 20 mg/kg of 78c for 4 weeks

High protein intake improves the body composition of aged mice, but it lowers NAD+ (nicotinamide adenine dinucleotide) levels and promotes metabolic aging. 

Metabolism

Model: Male COX7RP transgenic mice with systemic overexpression of COX7RP, aged under standard laboratory conditions and compared with age-matched wild-type controls.
Dosage: Not applicable. COX7RP activity was increased via genetic overexpression rather than drug administration.

Boosting mitochondrial efficiency by increasing COX7RP activity extended lifespan in mice while improving energy production and reducing inflammation.

Eric Verdin, M.D., and Peter Attia, M.D., discuss the controversy surrounding NAD+ (nicotinamide adenine dinucleotide), the best method for replenishing NAD+, and more.


The theory says our brain allocates resources to energy-consuming senescent cells at the body’s expense, accounting for gray hair, muscle shrinkage, and other signs of aging.

Search Result: SASP

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