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Non-invasive [O]HO PET measurements of cerebral perfusion and cerebrovascular reactivity using an additional heart scan.
J Cereb Blood Flow Metab
January 2025
Department of Clinical Physiology and Nuclear Medicine, Copenhagen University Hospital Bispebjerg and Frederiksberg, Copenhagen, Denmark.
Obtaining the arterial input function (AIF) is essential for quantitative regional cerebral perfusion (rCBF) measurements using [O]HO PET. However, arterial blood sampling is invasive and complicates the scanning procedure. We propose a new non-invasive dual scan technique with an image derived input function (IDIF) from an additional heart scan.
View Article and Find Full Text PDFCerebrovascular risk in rheumatoid arthritis patients: insights from carotid artery atherosclerosis in the Paracelsus 10,000 study.
Rheumatol Int
January 2025
Department of Internal Medicine, General Hospital Oberndorf, Teaching Hospital of the Paracelsus Medical University, Salzburg, Austria.
Rheumatoid arthritis (RA) is a chronic autoimmune disease marked by systemic inflammation. While RA primarily affects the joints, its systemic effects may lead to an increased cerebro- and cardiovascular risk. Atherosclerosis of the carotid arteries is a significant risk factor for cerebrovascular events and serves as a surrogate marker for cardiovascular risk.
View Article and Find Full Text PDFOxidative stress suppresses internal carotid artery dilation to hypercapnia in healthy older adults.
J Appl Physiol (1985)
January 2025
Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO 80309.
: Cerebrovascular disease and dementia risk increases with age and lifetime risk is greater in women. Cerebrovascular dysfunction likely precedes cerebrovascular disease and dementia but the mechanisms are incompletely understood. We hypothesized that oxidative stress mediates cerebrovascular dysfunction with human aging.
View Article and Find Full Text PDFRisk Factors and Pharmacological Interventions Impacting Cerebrovascular Ischemic Events in Giant Cell Arteritis: A Narrative Review.
Immun Inflamm Dis
January 2025
Faculty of Medicine, Alzaiem Alazhari University, Khartoum, Sudan.
Introduction: Giant cell arteritis (GCA) is a common vasculitis predominantly affecting larger vessels, especially in individuals aged 70-79. Cerebrovascular ischemic events (CIE), such as stroke and transient ischemic attacks, are serious but rare complications of GCA, with a pooled prevalence of 4%. Some studies found that within 2 weeks of GCA diagnosis, 74% and 34% of patients experience transient or severe ischemic events, respectively.
View Article and Find Full Text PDFIdentification of key genes associated with oxidative stress in ischemic stroke via bioinformatics integrated analysis.
BMC Neurosci
January 2025
Department of General Practice, Shanghai Xuhui Central Hospital, Shanghai, China.
Background: Ischemic stroke (IS) is a common cerebrovascular disease. Although the formation of atherosclerosis, which is closely related to oxidative stress (OS), is associated with stroke-related deaths. However, the role of OS in IS is unknown.
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