Juan M Racosta1,2, Kurt Kimpinski3,4. 1. Department of Clinical Neurological Sciences, London Health Sciences Centre, University Hospital, London, ON, Canada. juanracosta@hotmail.com. 2. Schulich School of Medicine and Dentistry, Western University, 339 Windermere Road, London, ON, Canada. juanracosta@hotmail.com. 3. Department of Clinical Neurological Sciences, London Health Sciences Centre, University Hospital, London, ON, Canada. 4. Schulich School of Medicine and Dentistry, Western University, 339 Windermere Road, London, ON, Canada.
Abstract
OBJECTIVE: The aim of this study is to review the evidence on the role of the autonomic nervous system as a determinant of brain volume. Brain volume measures have gained increasing attention given its biological importance, particularly as a measurement of neurodegeneration. METHODS: Using an integrative approach, we reviewed publications addressing the anatomical and physiological characteristics of brain autonomic innervation focusing on evidence from diverse clinical populations with respect to brain volume. RESULTS: Multiple mechanisms contribute to changes in brain volume. Autonomic influence on cerebral blood volume is of significant interest. CONCLUSION: We suggest a role for the autonomic innervation of brain vessels in fluctuations of cerebral blood volume. Further investigation in several clinical populations including multiple sclerosis is warranted to understand the specific role of parenchyma versus blood vessels changes on final brain volume.
OBJECTIVE: The aim of this study is to review the evidence on the role of the autonomic nervous system as a determinant of brain volume. Brain volume measures have gained increasing attention given its biological importance, particularly as a measurement of neurodegeneration. METHODS: Using an integrative approach, we reviewed publications addressing the anatomical and physiological characteristics of brain autonomic innervation focusing on evidence from diverse clinical populations with respect to brain volume. RESULTS: Multiple mechanisms contribute to changes in brain volume. Autonomic influence on cerebral blood volume is of significant interest. CONCLUSION: We suggest a role for the autonomic innervation of brain vessels in fluctuations of cerebral blood volume. Further investigation in several clinical populations including multiple sclerosis is warranted to understand the specific role of parenchyma versus blood vessels changes on final brain volume.
Authors: Meng Law; Amit M Saindane; Yulin Ge; James S Babb; Glyn Johnson; Lois J Mannon; Joseph Herbert; Robert I Grossman Journal: Radiology Date: 2004-06 Impact factor: 11.105