ArticleFrontiers in aging neuroscience2022
Increased Susceptibility to Cerebral Microhemorrhages Is Associated With Imaging Signs of Microvascular Degeneration in the Retina in an Insulin-Like Growth Factor 1 Deficient Mouse Model of Accelerated Aging.
Article in Frontiers in aging neuroscience, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.
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Who cites it
26 citing papers in PubMed, 26 citations in OpenAlex.
- Article
- Article
- Spontaneous intracerebral hemorrhage during computed tomography scanning-assessment of hyperacute hematoma growth.GeroScience · 2026Article
- Impacts of systemic milieu on cerebrovascular and brain aging: insights from heterochronic parabiosis, blood exchange, and plasma transfer experiments.GeroScience · 2025Review
- Article
- Endothelial IGF- 1R deficiency disrupts microvascular homeostasis, impairing skeletal muscle perfusion and endurance: implications for age-related sarcopenia.GeroScience · 2025Article
- The vasoprotective role of IGF-1 signaling in the cerebral microcirculation: prevention of cerebral microhemorrhages in aging.GeroScience · 2025Review
- Review
- Article
- Effects of voluntary and forced physical exercise on the retinal health of aging Wistar rats.GeroScience · 2024Article
- Atherosclerotic burden and cerebral small vessel disease: exploring the link through microvascular aging and cerebral microhemorrhages.GeroScience · 2024Review
- Article
- The effects of time restricted feeding on age-related changes in the mouse retina.Experimental gerontology · 2024Article
- Vascular smooth muscle cell-specific Igf1r deficiency exacerbates the development of hypertension-induced cerebral microhemorrhages and gait defects.GeroScience · 2024Article
- Diabetic Retinopathy: New Treatment Approaches Targeting Redox and Immune Mechanisms.Antioxidants (Basel, Switzerland) · 2024Review
- Article
- Endothelial deficiency of insulin-like growth factor-1 receptor leads to blood-brain barrier disruption and accelerated endothelial senescence in mice, mimicking aspects of the brain aging phenotype.Microcirculation (New York, N.Y. : 1994) · 2024Article
- Preventing spontaneous cerebral microhemorrhages in aging mice: a novel approach targeting cellular senescence with ABT263/navitoclax.GeroScience · 2024Article
- IGF1R deficiency in vascular smooth muscle cells impairs myogenic autoregulation and cognition in mice.Frontiers in aging neuroscience · 2024Article
- Acute neuroendocrine changes after traumatic brain injury.Brain & spine · 2024Review
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Authors and funding
13 authors at 2 institutions in 2 countries.
Funding
Abstract
Age-related cerebrovascular defects contribute to vascular cognitive impairment and dementia (VCID) as well as other forms of dementia. There has been great interest in developing biomarkers and other tools for studying cerebrovascular disease using more easily accessible tissues outside the brain such as the retina. Decreased circulating insulin-like growth factor 1 (IGF-1) levels in aging are thought to contribute to the development of cerebrovascular impairment, a hypothesis that has been supported by the use of IGF-1 deficient animal models. Here we evaluate vascular and other retinal phenotypes in animals with circulating IGF-1 deficiency and ask whether the retina mimics common age-related vascular changes in the brain such as the development of microhemorrhages. Using a hypertension-induced model, we confirm that IGF-1 deficient mice exhibited worsened microhemorrhages than controls. The retinas of IGF-1 deficient animals do not exhibit microhemorrhages but do exhibit signs of vascular damage and retinal stress such as patterns of vascular constriction and Müller cell activation. These signs of retinal stress are not accompanied by retinal degeneration or impaired neuronal function. These data suggest that the role of IGF-1 in the retina is complex, and while IGF-1 deficiency leads to vascular defects in both the brain and the retina, not all brain pathologies are evident in the retina.
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