Effects of Combined Treatment with Compounds Affecting Mitochondria on Physiological Parameters in Old Monkey

Area of Science:

• Gerontology and mitochondrial medicine.
• Investigating interventions to modulate aging processes.

Background:

• Mitochondrial dysfunction is linked to aging.
• Nicotinamide adenine dinucleotide (NAD+) precursors like nicotinamide mononucleotide (NMN) and mitochondrial-targeted antioxidants (MitoQ) are potential interventions.

Purpose of the Study:

• To evaluate the effects of NMN and MitoQ on physiological and biochemical parameters in aging male rhesus monkeys.
• To determine if combined NMN and MitoQ offer advantages over individual treatments.

Main Methods:

• Male rhesus monkeys received NMN, MitoQ, or both sequentially.
• Evaluated effects on body weight, temperature, hemostasis, ECG, hematological, and biochemical parameters.

Main Results:

• MitoQ, but not NMN, improved certain hematological and biochemical markers, resembling those of younger animals.
• These improvements were age-dependent, indicating a potential window of efficacy for MitoQ.
• Combined NMN and MitoQ treatment did not show superior benefits compared to MitoQ alone.

Conclusions:

• MitoQ shows promise in improving age-related physiological parameters in non-human primates, with efficacy potentially limited by age.
• NMN alone did not demonstrate significant benefits in this study.
• Targeting mitochondria with antioxidants like MitoQ may be a viable strategy for mitigating some aspects of aging.