Mitochondrial respiratory capacity

Biomarker

3 papers1 finding

  • Animals1

Associations

1

Frailty

downin humans1

1 study
  1. Frailty is associated with mitochondrial respiratory capacity in humans.

    “Frail older adults exhibit reduced mitochondrial DNA content, diminished mitochondrial respiratory capacity, elevated reactive oxygen species generation, and distinctive metabolomic changes.”

    Reviewin older adults

    The mitochondrial side of frailty

    Current opinion in clinical nutrition and metabolic care3 Oct 2025

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European Heart Journal Open

Spermidine is linked to higher fitness in coronary artery disease

Each doubling of spermidine intake was associated with 2.6 millilitres per kilogram per minute higher peak oxygen uptake in older people with coronary artery disease.Each doubling of spermidine intake was associated with 2.6 millilitres per kilogram per minute higher peak oxygen uptake in older people with coronary artery disease.

Cohort study of 187 peopleCoronary artery disease
Aging Cell

Blocking an enzyme improved muscle strength in mice

In an experiment in mice with features of premature aging, a compound improved the performance of mitochondria, the energy-producing structures in muscle cells.In an experiment in mice with features of premature aging, a compound improved the performance of mitochondria, the energy-producing structures in muscle cells.

Experiments in miceMuscle
American Journal of Physiology Heart and Circulatory Physiology

Mitochondrial proteostasis is impaired in mouse heart failure

Aged mice on a high-fat diet and L-NAME showed impaired mitochondrial proteostasis rather than defective biogenesis, suggesting quality control may contribute to reduced…Aged mice on a high-fat diet and L-NAME showed impaired mitochondrial proteostasis rather than defective biogenesis, suggesting quality control may contribute to reduced cardiac reserve.

Experiments in miceProteostasis