Spermidine for ALS
Also known as: Wheat germ extract
Autophagy and proteasome impairment in ALS leads to TDP-43 and SOD1 accumulation, which spermidine may address through autophagy enhancement.
Mechanism of Action
Spermidine activates autophagic clearance of misfolded TDP-43 and SOD1 protein aggregates, enhances proteasomal function, and promotes motor neuron survival through anti-inflammatory effects. It also supports polyamine-dependent mRNA translation for axonal repair.
General mechanism: Natural polyamine. EP300 inhibitor inducing autophagy/mitophagy. TFEB activator. Caloric restriction mimetic. Anti-inflammatory.
Current Evidence
Preclinical models show improved motor neuron survival. Spermidine extends lifespan in various model organisms. No ALS-specific clinical data.
Clinical Status: Preclinical. Longevity data from model organisms.
Safety Profile
Very safe. Naturally present in diet (wheat germ, soybeans, mushrooms). No significant side effects at supplement doses.
Key Research Questions
- Can spermidine reduce TDP-43 aggregation in ALS motor neurons?
- Does spermidine supplementation benefit ALS patients as autophagy enhancer?