Abstract
Numerous experimental and clinical data show that the physiological actions of insulin and sexual steroids interact in target tissues for these hormones. In the other hand, sexual steroids has effects on peripheral tissues, and since the skeletal muscle is the main responsible for peripheral glucose uptake, it would be possible that the sexual steroids induce directly in the muscle a decrease of the sensibility of this tissue to insulin action. Some of the biological actions of the estrogens are too fast like to be compatible with this classical mechanism of action, and this mechanism has been called not classical, non-genomic or rapid actions of the estrogens. Moreover, some experiments have shown that low concentrations of estradiol, induce an increase in the rate of IRS-1 phosphorylation, promotes the association between IRS-1 and the subunit of PI3-k, p85α, causes a decrease in the rate of IRS-1 serine phosphorylation and increases the rate of Akt phosphorylation. Therefore, the evidences suggest the existence of a narrow interrelation between the estrogens and insulin sensitivity, but relatively few studies have tried to resolve the molecular base of this relation in insulindependent tissues. The resolution of these unknown questions would be able to have a great long-term therapeutic repercussion. In this sense, we should not forget that insulin resistance is the underlying cause of several associated pathologies to the female aging, as Type 2 diabetes, cardio-circulatory pathology or neurodegenerative disease.
Infectious Disorders - Drug Targets
Title: Relationship Between Non-Genomic Actions of Estrogens and Insulin Resistace
Volume: 8 Issue: 1
Author(s): Ana Alonso and Celestino Gonzalez
Affiliation:
Abstract: Numerous experimental and clinical data show that the physiological actions of insulin and sexual steroids interact in target tissues for these hormones. In the other hand, sexual steroids has effects on peripheral tissues, and since the skeletal muscle is the main responsible for peripheral glucose uptake, it would be possible that the sexual steroids induce directly in the muscle a decrease of the sensibility of this tissue to insulin action. Some of the biological actions of the estrogens are too fast like to be compatible with this classical mechanism of action, and this mechanism has been called not classical, non-genomic or rapid actions of the estrogens. Moreover, some experiments have shown that low concentrations of estradiol, induce an increase in the rate of IRS-1 phosphorylation, promotes the association between IRS-1 and the subunit of PI3-k, p85α, causes a decrease in the rate of IRS-1 serine phosphorylation and increases the rate of Akt phosphorylation. Therefore, the evidences suggest the existence of a narrow interrelation between the estrogens and insulin sensitivity, but relatively few studies have tried to resolve the molecular base of this relation in insulindependent tissues. The resolution of these unknown questions would be able to have a great long-term therapeutic repercussion. In this sense, we should not forget that insulin resistance is the underlying cause of several associated pathologies to the female aging, as Type 2 diabetes, cardio-circulatory pathology or neurodegenerative disease.
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Cite this article as:
Alonso Ana and Gonzalez Celestino, Relationship Between Non-Genomic Actions of Estrogens and Insulin Resistace, Infectious Disorders - Drug Targets 2008; 8 (1) . https://dx.doi.org/10.2174/187152608784139596
DOI https://dx.doi.org/10.2174/187152608784139596 |
Print ISSN 1871-5265 |
Publisher Name Bentham Science Publisher |
Online ISSN 2212-3989 |
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