Preceding years of dedicated investigation on linkages between vascular (dys)function under conditions of elevated cardiovascular disease risk and tissue/organ performance have produced results and insights that frequently suffer from limited correlation and causation. Reaching out from this challenge, it was proposed that this may reflect a “level of resolution” argument and that altered hemodynamic behavior in vascular networks could be a stronger predictor of functional outcomes than higher resolution measures. Using this approach, we have determined that an attractor that describes the spatial and temporal shift in perfusion distribution at successive arteriolar bifurcations within the skeletal muscle is a strong predictor of functional outcomes within animals and provides novel insight into fundamental mechanistic contributors to altered patterns of intra-muscular perfusion. This lecture will focus on the applicability and utility of the attractor in of models of cardiovascular and metabolic disease risk of increasing severity. We will also discuss the utility of the attractor in terms of understanding the effectiveness of aggressive interventions for reversing established vasculopathy and perfusion impairments.
Physiology 2019 (Aberdeen, UK) (2019) Proc Physiol Soc 43, SA058
Research Symposium: Shifted vascular optimization: The emergence of a new arteriolar behaviour with chronic metabolic disease.
J. Frisbee1
1. Medical Biophysics, University of Western Ontario, London, Ontario, Canada.
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Where applicable, experiments conform with Society ethical requirements.