Reduced basal macrovascular and microvascular cerebral blood flow in young adults with metabolic syndrome: potential mechanisms

Author:

Carter Katrina J.1ORCID,Ward Aaron T.1,Kellawan J. Mikhail2ORCID,Harrell John W.3,Peltonen Garrett L.4,Roberts Grant S.5,Al-Subu Awni6,Hagen Scott A.6,Serlin Ronald C.7,Eldridge Marlowe W.6ORCID,Wieben Oliver58,Schrage William G.1ORCID

Affiliation:

1. Department of Kinesiology, University of Wisconsin, Madison, Wisconsin, United States

2. Department of Health and Exercise Science, University of Oklahoma, Norman, Oklahoma, United States

3. 711th Human Performance Wing, Air Force Research Laboratory, Wright-Patterson Air Force Base, Dayton, Ohio, United States

4. School of Nursing and Kinesiology, Western New Mexico University, Silver City, New Mexico, United States

5. Department of Medical Physics, University of Wisconsin, Madison, Wisconsin, United States

6. Department of Pediatrics, University of Wisconsin, Madison, Wisconsin, United States

7. Department of Educational Psychology, University of Wisconsin, Madison, Wisconsin, United States

8. Department of Radiology, University of Wisconsin, Madison, Wisconsin, United States

Abstract

We tested the impact of insulin resistance (IR) on resting cerebral blood flow (CBF) in adults with metabolic syndrome (MetSyn). Using MRI and research pharmaceuticals to study the role of NOS, ET-1, or COX signaling, we found that adults with MetSyn exhibit substantially lower CBF that is not explained by changes in NOS or ET-1 signaling. Interestingly, adults with MetSyn show a loss of COX-mediated vasodilation in the anterior but not posterior circulation.

Funder

American Diabetes Association

American Heart Association

HHS | NIH | National Heart, Lung, and Blood Institute

HHS | NIH | National Center for Advancing Translational Sciences

HHS | NIH | NIH Office of the Director

University of Wisconsin-Madison

Publisher

American Physiological Society

Subject

Physiology (medical),Physiology

Reference104 articles.

1. Centers for Disease Control and Prevention. National Diabetes Statistics Report, 2020. Atlanta, GA: U.S. Department of Health and Human Services, 2020.

2. Risk Factors for Type 2 Diabetes Mellitus

3. Animal models of insulin resistance and heart failure

4. Insulin resistance and coronary artery disease

5. Correlation of severity of coronary artery disease with insulin resistance

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