Regulation of Cerebrovascular Resistance in Health and Disease: From Molecules to Humans

A special issue of Life (ISSN 2075-1729). This special issue belongs to the section "Physiology and Pathology".

Deadline for manuscript submissions: 13 February 2026 | Viewed by 788

Special Issue Editor


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Guest Editor
1. Institute of Translational Medicine, HUN-REN-SE, Cerebrovascular and Neurocognitive Disease Research Group, Semmelweis University, Budapest, Hungary
2. Research Center for Sport Physiology, Hungarian University of Sports Science, Budapest, Hungary
3. Department of Physiology, New York Medical College, Valhalla, NY, USA
Interests: regulation of cerebral blood flow in heath and diseased conditions

Special Issue Information

Dear Colleagues,

Optimal cerebrovascular perfusion is vital for maintaining healthy brain function. This complete task is achieved by different and appropriate mechanisms regulating the resistance of various extracranial and intracranial vessels, such as arteries, arterioles, and even venules.

One of the specific attributes of cerebral circulation is its well-developed autoregulation. This tight control of cerebral blood flow (CBF) is crucial to maintaining a relatively constant blood supply of the brain, as well as intracranial blood volume, and at the same time to comply with the limited space available in the skull.

Thus, small intracranial cerebral arteries have a well-developed constrictor function. On the other hand, this limitation does not affect extracranial arteries, allowing them to dilate freely, thus providing increased blood flow to the brain. Hemodynamic forces play an important role in the autoregulation of CBF, as previous studies have established that it is achieved by pressure- and flow-sensitive vasomotor mechanisms. In addition to these, other cellular, metabolic, and neural factors also play important roles in enabling brain tissues to control cerebrovascular resistance and thus blood supply, mechanisms collectively called neurovascular coupling.

In diseased conditions, such as hypertension, diabetes, pre-eclampsia, traumatic brain injury, aging, etc., these mechanisms can become impaired, leading to stroke, micro-bleeding, edema, Alzheimer-like dementia, and so on.

Many of the underlying molecular and functional pathomechanisms are still unresolved; thus, both basic and clinical research are needed to elucidate them.

We invite the submission of manuscripts to this Special Issue that will contribute to improving our understanding of the mechanisms responsible for the appropriate supply and autoregulation of cerebral blood flow and reveal the pathomechanisms responsible for disease relate conditions fostering the development of appropriate preventions and therapies.

Dr. Akos Koller
Guest Editor

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Keywords

  • cerebral blood flow
  • hemodynamic forces
  • cerebrovascular resistance
  • endothelium
  • smooth muscle
  • arachidonic acid metabolites
  • reactive oxygen species
  • molecular mediators
  • protein and mRNA expressions
  • brain disease conditions
  • transcranial Doppler measurement
  • EEG
  • lifestyle

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Published Papers (1 paper)

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Research

22 pages, 1715 KiB  
Article
Differential Gene and Protein Expressions Responsible for Vasomotor Signaling Provide Mechanistic Bases for the Opposite Flow-Induced Responses of Pre- and Post-Circle of Willis Arteries
by Zoltan Nemeth, Krisztian Eros, Gyongyi Munkacsy and Akos Koller
Life 2025, 15(6), 856; https://doi.org/10.3390/life15060856 - 26 May 2025
Viewed by 529
Abstract
Increases in flow elicit dilations in the basilar artery (BA) supplied by the posterior cerebral circulation (PCC), and ensuring efficient blood supply to the circle of Willis in which blood flow and pressure can distribute and equalize, and thus provide the appropriate supply [...] Read more.
Increases in flow elicit dilations in the basilar artery (BA) supplied by the posterior cerebral circulation (PCC), and ensuring efficient blood supply to the circle of Willis in which blood flow and pressure can distribute and equalize, and thus provide the appropriate supply for the daughter branches to reach certain brain areas. In contrast, increases in flow elicit constrictions in the middle cerebral artery (MCA), supplied by the anterior cerebral circulation (ACC) and regulating the blood pressure and flow in distal cerebral circulation. Mediators of flow-dependent responses include arachidonic acid (AA) metabolites and nitric oxide (NO). We hypothesized that mediators of flow-dependent responses are differentially expressed in cerebral arteries of the PCC (CAPCC) and ACC (CAACC). The expressions of key enzymes of the AA pathway—cyclooxygenases (COX1/COX2), cytochrome P450 hydroxylases (Cyp450), thromboxane synthase (TXAS), thromboxane A2 (TP) receptor, prostacyclin synthase (PGIS), prostacyclin (IP) receptor (IP); neuronal nitric oxide synthase (nNOS), and endothelial nitric oxide synthase (eNOS)—in the BA and MCA from rats (n = 20) were determined by western blotting. Transcriptome analysis in CAPCC and CAACC from rats (n = 25) was assessed by RNA sequencing. In BA compared to MCA, COX1/2 and Cyp450 protein expressions were lower, PGIS was higher, TXAS and nNOS/eNOS were similar, TP receptors were lower, and IP receptors were higher. Gene expressions of vasodilator canonical pathways were higher in CAPCC; vasoconstriction canonical pathways were higher in CAACC. Mediators of flow-dependent vasomotor signaling are differentially expressed in cerebral arteries of the posterior and anterior circulation, corresponding to their vasomotor function. Full article
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