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Profil bibliographique

Christopher A. DeSouza

Informations fournies par OpenAlex. Research Africa ne déduit ni nationalité, ni poste, ni coordonnées personnelles.

242Publications signalées
10064Citations signalées
7Affiliations récentes

Les institutions déclarées

Les domaines associés

Cardiovascular Health and Disease PreventionCardiovascular and exercise physiologyExtracellular vesicles in diseaseNitric Oxide and Endothelin EffectsBlood Pressure and Hypertension Studies

Les publications récentes

Accès ouvert 2026 article OpenAlex

Obesity-related circulating endothelial extracellular vesicles negatively affect cerebral microvascular cell function

Samuel T. Ruzzene, Vinícius P. Garcia, Auburn R. Berry, Madeleine F. Stone et autres

Despite an improved understanding of many of the pathological consequences associated with human obesity, factors that initiate, promote, and accelerate cerebrovascular events are not completely understood. This study provides novel data demonstrating that circulating EEVs from adults with obesity adversely affect eNOS …

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0 citations American Journal of Physiology-Endocrinology and Metabolism
2026 article OpenAlex

Age-related circulating endothelial extracellular vesicles promote cerebral microvascular cell dysfunction

Auburn R. Berry, Samuel T. Ruzzene, Vinícius P. Garcia, Kendra N. Wegerson et autres

Aging is the preeminent risk factor for ischemic stroke. The mechanisms underlying the age-related increase in stroke risk and incidence are complex, diverse, and not completely understood. This study provides novel data implicating circulating endothelial cell-derived extracellular vesicles (EEVs) as a novel …

us (code pays fourni par la source)

0 citations American Journal of Physiology-Heart and Circulatory Physiology
Accès ouvert 2026 article OpenAlex

Effect of 17β-estradiol on brain microvascular endothelial cell oxidative stress, apoptotic susceptibility, and fibrinolytic capacity

Whitney B. Valenti, Samuel T. Ruzzene, Auburn R. Berry, Nathalie C. Orozco-Fersiva et autres

The cerebrovascular protective effects of estrogen are diverse, complex, and not fully understood. This study provides novel data demonstrating that 17β-estradiol decreases oxidative stress, enhances apoptotic resistance, and increases fibrinolytic capacity in human brain microvascular endothelial cells in vitro. These changes in …

us (code pays fourni par la source)

0 citations Journal of Applied Physiology
Accès ouvert 2026 preprint OpenAlex

Endothelium-Dependent Vasodilation is Impaired in Chronic Spinal Cord Injury and is Associated with Oxidative Stress

Andrew Joon Park, Christopher A. DeSouza, Genevieve Madera, Clare Morey et autres

ABSTRACT Background Individuals with spinal cord injury (SCI) experience accelerated atherosclerotic cardiovascular disease that is not fully explained by traditional risk factors. Endothelial dysfunction is a key mechanism in atherosclerosis. We tested the hypothesis that endothelium-dependent vasodilation is impaired in adults with …

us (code pays fourni par la source)

0 citations bioRxiv (Cold Spring Harbor Laboratory)
Accès ouvert 2026 article OpenAlex

Early women’s health research on endurance exercise training and cardiovascular aging at the University of Colorado Boulder using the masters athlete model

Douglas R. Seals, Christopher A. DeSouza, Hirofumi Tanaka, Kerrie L. Moreau et autres

) almost twice that of nonexercising postmenopausal women, in part due to a larger total blood volume. The masters runners showed stable body mass with age/menopause and exhibited much smaller age-related differences in total body fatness and abdominal adiposity than nonexercising women, …

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1 citation Journal of Applied Physiology
Accès ouvert 2026 article OpenAlex

Extracellular vesicles in type 2 diabetes exhibit elevated miR-155 cargo and Annexin A1 concentration

Garett S. Jackson, Hashim Islam, Alexandre Abílio de Souza Teixeira, Jordan Boultbee et autres

AIMS: Extracellular vesicles (EVs) facilitate intercellular communication and reflect cellular phenotypes. Large-sized EVs (200-1000 nm), commonly referred to as microvesicles (MVs), are released during cellular activation or apoptosis and may serve as biomarkers in chronic disease. The present study aimed to characterize …

ca, gb, us (code pays fourni par la source)

1 citation Life Sciences
Accès ouvert 2025 article OpenAlex

Obesity-related elevation in circulating endothelial-derived extracellular microvesicles and endothelial fibrinolytic dysfunction

Samuel T. Ruzzene, Auburn R. Berry, Vinícius P. Garcia, Whitney B. Valenti et autres

Obesity is associated with profound impairment in the capacity of the vascular endothelium to release tissue-type plasminogen activator (t-PA), the primary mechanism underlying endogenous thrombolysis. Circulating endothelial cell-derived extracellular vesicles (EMVs) have been linked to endothelial dysfunction. This study demonstrates that circulating …

us (code pays fourni par la source)

1 citation American Journal of Physiology-Heart and Circulatory Physiology
Accès ouvert 2025 article OpenAlex

Circulating endothelial extracellular vesicles progressively increase with age and are associated with endothelial vasodilator dysfunction

Christian S DeSouza, Kelly A. Stockelman, Jamie G. Hijmans, Tyler D. Bammert et autres

Aging is associated with progressive decline in endothelium-dependent vasodilation. Mechanisms underlying this decline in endothelial function are not fully understood. Circulating endothelial cell-derived extracellular vesicles (EMVs) have been linked to endothelial dysfunction. The results of the study demonstrate that circulating EMVs increase …

us (code pays fourni par la source)

4 citations American Journal of Physiology-Regulatory, Integrative and Comparative Physiology
Accès ouvert 2025 article OpenAlex

The non-nutritive sweetener erythritol adversely affects brain microvascular endothelial cell function

Auburn R. Berry, Samuel T. Ruzzene, Emily I. Ostrander, Kendra N. Wegerson et autres

Erythritol, a common non-nutritive sweetener, is associated with increased risk of cardiovascular and cerebrovascular events. This study provides novel data, demonstrating that erythritol (at a concentration typically contained in a standard-size commercially available artificially sweetened beverage) adversely affects brain microvascular endothelial cell …

us, fr (code pays fourni par la source)

9 citations Journal of Applied Physiology
2025 article OpenAlex

Elevated Circulating Endothelial-Derived Microvesicles are Associated with Obesity-Related Fibrinolytic Dysfunction

Auburn Berry, Samuel T. Ruzzene, João Eduardo Izaías, Jared J. Greiner et autres

Adults with obesity demonstrate accelerated rates of atherosclerosis, as well as increased incidence of myocardial infarction and stroke. As such, obesity reduces the number of years lived free of cardiovascular disease (CVD) and increases the number of years lived with CVD, contributing …

us (code pays fourni par la source)

0 citations Physiology
2025 article OpenAlex

Effects of Circulating Endothelial Microvesicles and Aerobic Exercise on Cerebrovascular Inflammation in Chronic Kidney Disease

Vinícius P. Garcia, Danielle L. Kirkman, Auburn Berry, Samuel T. Ruzzene et autres

Chronic low-grade inflammation in chronic kidney disease (CKD) is associated with an increased risk of cardiovascular diseases (CVD), including stroke. Circulating endothelial microvesicles (EMVs), a subset of extracellular vesicles, have been linked to the etiology of ischemic stroke. Indeed, EMVs can cross …

us (code pays fourni par la source)

0 citations Physiology
2025 article OpenAlex

Erythritol Increases Oxidative Stress and Reduces Nitric Oxide Production in Human Cerebral Microvascular Endothelial Cells

Auburn Berry, Samuel T. Ruzzene, João Eduardo Izaías, Joshua Holzer et autres

Erythritol is a widely used non-nutritive sweetener that has been purported to be a safe alternative to sugar due to its minimal impact on blood glucose and insulin levels. However, recent evidence has linked erythritol to increased risk of cardiovascular and cerebrovascular …

us (code pays fourni par la source)

1 citation Physiology

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