Figure 5

![Figure 5: Respiratory chain complex activity assays (complexes I through IV) in hippocampal synaptic mitochondria, demonstrating selective vulnerability of complex I activity to age-related decline.]()

> Source: Margrethe A Olesen et al. "Premature synaptic mitochondrial dysfunction in the hippocampus during aging con." *Redox biology*, 2020. PMID: [32447261](https://pubmed.ncbi.nlm.nih.gov/32447261/)

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  <img src="" alt="Respiratory chain complex activity assays (complexes I through IV) in hippocampal synaptic mitochondria, demonstrating selective vulnerability of complex I activity to age-related decline." />
  <figcaption>Figure 5. Respiratory chain complex activity assays (complexes I through IV) in hippocampal synaptic mitochondria, demonstrating selective vulnerability of complex I activity to age-related decline.<br>  Source: Margrethe A Olesen et al. "Premature synaptic mitochondrial dysfunction in the hippocampus during aging con." <em>Redox biology</em>, 2020. PMID: <a href="https://pubmed.ncbi.nlm.nih.gov/32447261/">32447261</a></figcaption>
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