Decreased dopamine transporters with age in health human subjects.
prospective_cohort · Level II
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- Record sourced from PubMed, PMID 8053661.
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Abstract
The effects of aging on brain dopamine transporters was evaluated in 26 healthy male volunteers (age range, 21-63 years) using positron emission tomography and [11C]cocaine. The ratio of the distribution volume for [11C]cocaine in basal ganglia to that in cerebellum was used as a model parameter for dopamine transporter availability and showed a significant negative correlation with age (r = 0.65, p < 0.0005). This results document an age-related decline in dopamine transporters in healthy individuals.
Medical subject headings
- Aging
- Brain
- Dopamine
- Membrane Glycoproteins
- Membrane Transport Proteins
- Nerve Tissue Proteins