Related Experiment Video
Updated: Jun 19, 2025
Sub-acute Cerebral Microhemorrhages Induced by Lipopolysaccharide Injection in Rats
Published on: October 17, 2018
Cerebral Microbleeds Associate with Brain Endothelial Cell Activation-Dysfunction and Blood-Brain Barrier
1Department of Internal Medicine, Endocrinology Diabetes and Metabolism, Diabetes and Cardiovascular Disease Center, University of Missouri School of Medicine, One Hospital Drive, Columbia, MO 65211, USA.
Abstract:
Globally, cerebral microbleeds (CMBs) are increasingly being viewed not only as a marker for cerebral small vessel disease (SVD) but also as having an increased risk for the development of stroke (hemorrhagic/ischemic) and aging-related dementia. Recently, brain endothelial cell activation and dysfunction and blood-brain barrier dysfunction and/or disruption have been shown to be associated with SVD, enlarged perivascular spaces, and the development and evolution of CMBs. CMBs are a known disorder of cerebral microvessels that are visualized as 3-5 mm, smooth, round, or oval, and hypointense (black) lesions seen only on T2*-weighted gradient recall echo or susceptibility-weighted sequences MRI images. CMBs are known to occur with high prevalence in community-dwelling older individuals. Since our current global population is the oldest recorded in history and is only expected to continue to grow, we can expect the healthcare burdens associated with CMBs to also grow. Increased numbers (≥10) of CMBs should raise a red flag regarding the increased risk of large symptomatic neurologic intracerebral hemorrhages. Importantly, CMBs are also currently regarded as markers of diffuse vascular and neurodegenerative brain damage. Herein author highlights that it is essential to learn as much as we can about CMB development, evolution, and their relation to impaired cognition, dementia, and the exacerbation of neurodegeneration.
Insights
Cerebral microbleeds (CMBs) are linked to stroke and dementia risk in aging populations. Understanding CMBs is crucial for managing neurodegeneration and cognitive decline.
Area of Science:
- Neurology
- Radiology
- Geriatrics
Background:
- Cerebral microbleeds (CMBs) are increasingly recognized as indicators of cerebral small vessel disease (SVD).
- Brain endothelial cell and blood-brain barrier dysfunction are associated with SVD, enlarged perivascular spaces, and CMB development.
- CMBs are common in older adults, posing a growing healthcare challenge due to global population aging.
Purpose of the Study:
- To highlight the significance of cerebral microbleeds (CMBs) in the context of aging and neurological disorders.
- To emphasize the association between CMBs and increased risk of stroke and dementia.
- To underscore the need for further research into CMB development, evolution, and their impact on cognition and neurodegeneration.
Main Methods:
- Review of existing literature on cerebral microbleeds (CMBs).
- Analysis of CMBs as markers for cerebral small vessel disease (SVD).
- Correlation of CMBs with stroke, dementia, and neurodegenerative processes.
Main Results:
- CMBs are hypointense lesions on specific MRI sequences (T2*-weighted, susceptibility-weighted).
- Increased CMBs (≥10) indicate a higher risk of symptomatic intracerebral hemorrhages.
- CMBs serve as markers for diffuse vascular and neurodegenerative brain damage.
Conclusions:
- Cerebral microbleeds (CMBs) are critical indicators of SVD and associated neurological risks.
- Understanding CMBs is essential for addressing the growing healthcare burden of stroke, dementia, and neurodegeneration in aging populations.
- Further investigation into CMBs' role in cognitive impairment and neurodegeneration is warranted.
More Related Videos
04:29Author Spotlight: Modeling Vascular Contributions to Alzheimer's Disease in Transgenic Mice
Published on: May 17, 2024
08:04Derivation, Expansion, Cryopreservation and Characterization of Brain Microvascular Endothelial Cells from Human Induced Pluripotent Stem Cells
Published on: November 19, 2020
