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Cleve Clin J Med. 2010 Jul;77 Suppl 3:S34-9. doi: 10.3949/ccjm.77.s3.06.

Neuroscience and heart-brain medicine: the year in review.

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1
Clinical Neurocardiology Section, Clinical Neurosciences Program, Division of Intramural Research, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, 20892-1620, USA. goldsteind@ninds.nih.gov

Abstract

Important recent publications in the area of neuroscience and heart-brain medicine center largely around three topics: (1) mechanisms of cardiac sympathetic denervation in Parkinson disease, (2) cytoplasmic monoamine metabolites as autotoxins, and (3) the validity of power spectral analysis of heart rate variability to indicate cardiac sympathetic tone. Findings by Orimo et al support a centripetal, retrograde pathogenetic process involving alpha-synuclein deposition and degeneration of cardiac noradrenergic neurons in Parkinson disease. Several studies suggest that processes increasing cytoplasmic monoamines lead to neuronal loss from auto-oxidation or enzymatic oxidation. Lack of correlation between commonly used indices from power spectral analysis of heart rate variability and cardiac norepinephrine spillover casts doubt on the validity of power spectral analysis to indicate cardiac sympathetic tone.

PMID:
20622073
PMCID:
PMC4164387
DOI:
10.3949/ccjm.77.s3.06
[Indexed for MEDLINE]
Free PMC Article
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