Zobrazeno 1 - 10
of 44
pro vyhledávání: '"Leonardo A. Rivera-Rivera"'
Autor:
Tomas Vikner, Kevin M. Johnson, Robert V. Cadman, Tobey J. Betthauser, Rachael E. Wilson, Nathaniel Chin, Laura B. Eisenmenger, Sterling C. Johnson, Leonardo A. Rivera-Rivera
Publikováno v:
Fluids and Barriers of the CNS, Vol 21, Iss 1, Pp 1-11 (2024)
Abstract Background Cerebrospinal fluid (CSF) dynamics are increasingly studied in aging and neurological disorders. Models of CSF-mediated waste clearance suggest that altered CSF dynamics could play a role in the accumulation of toxic waste in the
Externí odkaz:
https://doaj.org/article/666e52bf2c404fdfa18dc835eca83698
Autor:
Brandon G. Fico, Kathleen B. Miller, Leonardo A. Rivera-Rivera, Adam T. Corkery, Andrew G. Pearson, Nicole A. Loggie, Anna J. Howery, Howard A. Rowley, Kevin M. Johnson, Sterling C. Johnson, Oliver Wieben, Jill N. Barnes
Publikováno v:
Frontiers in Physiology, Vol 14 (2023)
Introduction: Age-related changes in cerebral hemodynamics are controversial and discrepancies may be due to experimental techniques. As such, the purpose of this study was to compare cerebral hemodynamics measurements of the middle cerebral artery (
Externí odkaz:
https://doaj.org/article/10c3e79b17aa4b2dbdd271c04785e3f2
Autor:
Leonardo A. Rivera-Rivera, Steve Kecskemeti, Mu-Lan Jen, Zachary Miller, Sterling C. Johnson, Laura Eisenmenger, Kevin M. Johnson
Publikováno v:
NeuroImage, Vol 264, Iss , Pp 119711- (2022)
Neurovascular 4D-Flow MRI has emerged as a powerful tool for comprehensive cerebrovascular hemodynamic characterization. Clinical studies in at risk populations such as aging adults indicate hemodynamic markers can be confounded by motion-induced bia
Externí odkaz:
https://doaj.org/article/ef556c231afb44d795c5956633b71342
Autor:
Brandon G. Fico, Kathleen B. Miller, Leonardo A. Rivera-Rivera, Adam T. Corkery, Andrew G. Pearson, Nicole A. Eisenmann, Anna J. Howery, Howard A. Rowley, Kevin M. Johnson, Sterling C. Johnson, Oliver Wieben, Jill N. Barnes
Publikováno v:
Frontiers in Cardiovascular Medicine, Vol 9 (2022)
The central arteries dampen the pulsatile forces from myocardial contraction, limiting the pulsatility that reaches the cerebral vasculature, although there are limited data on this relationship with aging in humans. The purpose of this study was to
Externí odkaz:
https://doaj.org/article/8b78aff736e449b09ab77876c275324c
Autor:
Kathleen B. Miller, Samuel J. Gallo, Leonardo A. Rivera-Rivera, Adam T. Corkery, Anna J. Howery, Sterling C. Johnson, Howard A. Rowley, Oliver Wieben, Jill N. Barnes
Publikováno v:
Aging Brain, Vol 1, Iss , Pp 100019- (2021)
Our purpose was to compare cerebral blood flow in the large intracranial vessels between healthy adults with (VAH+) and without (No VAH) vertebral artery hypoplasia. We also evaluated age-related differences in regional blood flow through the large c
Externí odkaz:
https://doaj.org/article/88af95e8e2554599809a683a867c26b2
Autor:
Leonardo A. Rivera‐Rivera, Laura Eisenmenger, Karly A. Cody, Thomas Reher, Tobey Betthauser, Robert V. Cadman, Howard A. Rowley, Cynthia M. Carlsson, Nathaniel A. Chin, Sterling C. Johnson, Kevin M. Johnson
Publikováno v:
Alzheimer’s & Dementia: Diagnosis, Assessment & Disease Monitoring, Vol 13, Iss 1, Pp n/a-n/a (2021)
Abstract Introduction This work investigated the relationship between cerebrovascular disease (CVD) markers and Alzheimer's disease (AD) biomarkers of amyloid beta deposition, and neurofibrillary tau tangles in subjects spanning the AD clinical spect
Externí odkaz:
https://doaj.org/article/64dae7cf22e7483e9542d321b493f4d4
Autor:
Leonardo A. Rivera-Rivera, Karly A. Cody, David Rutkowski, Paul Cary, Laura Eisenmenger, Howard A. Rowley, Cynthia M. Carlsson, Sterling C. Johnson, Kevin M. Johnson
Publikováno v:
NeuroImage: Clinical, Vol 28, Iss , Pp 102379- (2020)
Recent modeling and experimental evidence suggests clearance of soluble metabolites from the brain can be driven by low frequency flow oscillations (LFOs) through the intramural periarterial drainage (IPAD) pathway. This study investigates the use of
Externí odkaz:
https://doaj.org/article/e221b57a9f6f414499bbf1dd8faa662e
Autor:
Kathleen B. Miller, Anna J. Howery, Leonardo A. Rivera-Rivera, Sterling C. Johnson, Howard A. Rowley, Oliver Wieben, Jill N. Barnes
Publikováno v:
Frontiers in Aging Neuroscience, Vol 11 (2019)
Cerebrovascular reactivity (CVR), is important for determining future risk of cerebrovascular disease. It is unclear if primary aging is associated with reductions in CVR because previous studies often include participants with vascular risk factors.
Externí odkaz:
https://doaj.org/article/ba004cb1d3b44827ae6ecc02df50d005
Autor:
Grant S. Roberts, Anthony Peret, Erin M. Jonaitis, Rebecca L. Koscik, Carson A. Hoffman, Leonardo A. Rivera-Rivera, Karly A. Cody, Howard A. Rowley, Sterling C. Johnson, Oliver Wieben, Kevin M. Johnson, Laura B. Eisenmenger
Publikováno v:
Radiology. 307
Autor:
Leonardo A. Rivera‐Rivera
Publikováno v:
Journal of Magnetic Resonance Imaging.