Dopamine

  • 2 independent labs in 2 countries
  • Funders: National Key Research and Development Program of China and 4 more
  • Model organisms1

Outcomes

4

Lifespan

downin B. mori1is required forin worms1

2 studies
  1. Dopamine shortens lifespan in B. mori.

    “Reducing dopamine levels shortened lifespan”

    Model organismsreducing dopamine levels

    Dopamine Enhances Healthspan and Locomotor Performance via Antioxidant Defense in Silkworms, Bombyx mori

    Insects14 Feb 2026

  2. Dopamine is required for lifespan in worms.

    “Touch modulation of dietary restriction requires putative mechanoreceptor proteins, the neurotransmitters dopamine and tyramine/adrenaline, and the neuropeptides INS-11 and GnRH.”

    Model organismsfor touch modulation of dietary restriction

    Rewarding touch limits lifespan through neural to intestinal signaling

    Proceedings of the National Academy of Sciences of the United States of America23 Oct 2025

Oxidative stress and ROS signalling

downin B. mori1

1 study
  1. Dopamine protects against oxidative stress and ROS signalling in B. mori.

    “lifespan-extending effect of dopamine was closely correlated with enhanced total antioxidant capacity”

    Model organismsmoderate peripheral administration or elevated endogenous levels

    Dopamine Enhances Healthspan and Locomotor Performance via Antioxidant Defense in Silkworms, Bombyx mori

    Insects14 Feb 2026

More on Oxidative stress and ROS signalling

Locomotor activity

upin B. mori1

1 study
  1. Dopamine improves locomotor activity in B. mori.

    “improved locomotor activity, and restored motor vigor in aged moths”

    Model organismsmoderate peripheral administration

    Dopamine Enhances Healthspan and Locomotor Performance via Antioxidant Defense in Silkworms, Bombyx mori

    Insects14 Feb 2026

Healthspan

upin B. mori1

1 study
  1. Dopamine improves healthspan in B. mori.

    “moderate peripheral administration significantly extended healthspan, improved locomotor activity, and restored motor vigor in aged moths”

    Model organismsmoderate peripheral administration

    Dopamine Enhances Healthspan and Locomotor Performance via Antioxidant Defense in Silkworms, Bombyx mori

    Insects14 Feb 2026

Latest

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bioRxiv

Dopamine clearance–cognition link varies by age and structure

In 3,650 adults, elevated modeled dopamine clearance was linked to poorer cognition only with marked structural degradation and within sliding age windows centered…In 3,650 adults, elevated modeled dopamine clearance was linked to poorer cognition only with marked structural degradation and within sliding age windows centered between 56 and 76 years.

Preprint: cohort study of 3,650 peopleMechanisms
bioRxiv

Normative brain models reveal dopamine shifts in early amyloid

In cognitively unimpaired older adults, intermediate amyloid burden showed lower dopamine-transporter deviation scores than amyloid-positive status, with an adjusted…In cognitively unimpaired older adults, intermediate amyloid burden showed lower dopamine-transporter deviation scores than amyloid-positive status, with an adjusted difference of −0.582.

Preprint: cohort study of 4,152 peopleBiomarkers