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Published on: May 5, 2023
Angiogenesis in old-aged subjects after ischemic stroke: a cautionary note for investigators
Eugen B Petcu1, Robert A Smith, Rodica I Miroiu
1Griffith University School of Medicine, Gold Coast Campus, Griffith University, QLD 4222, Australia. e.petcu@griffith.edu.au.
Journal of Angiogenesis Research
|November 30, 2010
Summary
Brain angiogenesis and neuroregeneration differ significantly with age. Understanding age-dependent changes in blood vessels is crucial for effective stroke recovery in older adults.
Area of Science:
- Neuroscience
- Vascular Biology
- Gerontology
Background:
- Angiogenesis, or new blood vessel formation, is vital in conditions like stroke and linked to neuroregeneration.
- Existing research often overlooks the age factor, leading to potentially inaccurate conclusions as angiogenesis dynamics vary between young and old subjects.
- Age-dependent differences in brain senescence, including parenchymal, vascular, and blood flow changes, can impact angiogenesis.
Purpose of the Study:
- To review the key features of brain senescence and their influence on angiogenesis.
- To describe post-stroke angiogenesis and its relationship with neuroregeneration in the context of aging.
- To explore the modulation of angiogenesis by vascular endothelial growth factor (VEGF) and insulin-like growth factor 1 (IGF-1) in aged brains after ischemic injury.
Main Methods:
- Literature review focusing on brain senescence, age-dependent angiogenesis, and post-stroke recovery.
- Analysis of morphological and functional changes in the aging brain's vasculature and parenchyma.
- Examination of the roles of VEGF and IGF-1 in modulating angiogenesis in aged post-ischemic brains.
Main Results:
- Brain senescence involves significant morphological and functional alterations affecting the brain parenchyma and its vascular network.
- Angiogenesis following stroke is age-dependent, influencing neuroregeneration outcomes.
- VEGF and IGF-1 are key modulators of angiogenesis in the aged brain after ischemic events.
Conclusions:
- Age is a critical factor influencing angiogenesis and neuroregeneration, particularly after stroke.
- Extrapolation of data from young subjects or in vitro studies to older populations may yield misleading results.
- Targeting age-dependent angiogenic pathways, modulated by factors like VEGF and IGF-1, holds therapeutic potential for stroke recovery in the elderly.
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