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Published on: June 7, 2012
Estrogens as neuroprotectants against ischemic stroke
María Alonso de Leciñana1, Jose Antonio Egido
1Servicio de Neurología, Hospital Universitario Ramón y Cajal, Spain. mariaalonsoleci@telefonica.net
Cerebrovascular Diseases (Basel, Switzerland)
|May 3, 2006
Summary
Estrogens protect blood vessels from atherosclerosis and the brain from ischemia through direct cellular effects and systemic actions. These estrogenic effects involve receptor-dependent and independent mechanisms, offering therapeutic potential for stroke prevention and treatment.
Area of Science:
- Endocrinology
- Neuroscience
- Cardiovascular Science
Background:
- Estrogens exhibit vasoprotective properties against atherosclerosis.
- Estrogens demonstrate neuroprotective effects against cerebral ischemia.
Purpose of the Study:
- To review the mechanisms underlying the vaso- and neuroprotective effects of estrogens.
- To discuss experimental and clinical evidence of these protective effects.
- To consider therapeutic implications for stroke.
Main Methods:
- Review of existing literature on estrogenic mechanisms.
- Analysis of experimental and clinical data on estrogen's protective effects.
- Consideration of therapeutic applications.
Main Results:
- Estrogenic effects on vascular smooth muscle, endothelium, lipids, coagulation, and antioxidant systems contribute to vasoprotection.
- Neuroprotective mechanisms include antioxidant, anti-inflammatory, protein synthesis modulation, apoptosis inhibition, and microvascular flow preservation.
- Estrogenic actions are mediated by genomic, non-genomic, and receptor-independent pathways.
Conclusions:
- Estrogens possess significant vaso- and neuroprotective properties.
- Understanding these mechanisms can inform therapeutic strategies for stroke prevention and treatment.
- Further research into estrogen's multifaceted actions is warranted.
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