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Testosterone Replacement, Low T, HCG, & Beyond
Testosterone and Men's Health Articles
The Modulatory Effects of Testosterone on Diabetic Cardiomyopathy
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<blockquote data-quote="madman" data-source="post: 274073" data-attributes="member: 13851"><p><em><strong>Diabetes is a prevalent disease, primarily characterized by high blood sugar (hyperglycemia). Significantly higher rates of myocardial dysfunction have been noted in individuals with diabetes, even in those without coronary artery disease or high blood pressure (hypertension). Numerous molecular mechanisms have been identified through which diabetes contributes to the pathology of diabetic cardiomyopathy, which presents as cardiac hypertrophy and fibrosis. At the cellular level, oxidative stress and inflammation in cardiomyocytes are triggered by hyperglycemia.</strong> Although males are generally more likely to develop cardiovascular disease than females, diabetic males are less likely to develop diabetic cardiomyopathy than diabetic females. <strong>One reason for these differences may be the higher levels of serum testosterone in males compared with females. Although testosterone appears to protect against cardiomyocyte oxidative stress and exacerbates hypertrophy, its role in inflammation and fibrosis is much less clear. Additional preclinical and clinical studies will be required to delineate testosterone’s effect on the diabetic heart.</strong></em></p><p><em><strong></strong></em></p><p><em><strong></strong></em></p><p><em><strong></strong></em></p><p><em><strong></strong></em></p><p><em><strong><u>The objective of this review is to identify potential interactions between the actions of testosterone and hyperglycemia in cardiomyocytes (Figure 1A)</u>. <u>This review focuses on four mechanisms associated with DbCM</u>: hypertrophy, oxidative stress, inflammation, and fibrosis. Particular attention will be placed on studies attempting to delineate the influence of hyperglycemia/hyperlipidemia on cardiomyocytes.</strong></em></p><p><em><strong></strong></em></p><p><em><strong></strong></em></p><p><em><strong></strong></em></p><p><em><strong></strong></em></p><p><em><strong>*Oxidative Stress</strong></em></p><p><em><strong></strong></em></p><p><em><strong>*Inflammation</strong></em></p><p><em><strong></strong></em></p><p><em><strong>*Hypertrophy</strong></em></p><p><em><strong></strong></em></p><p><em><strong>*Fibrosis</strong></em></p><p></p><p></p><p></p><p></p><p><strong>Conclusion and Future Directions</strong></p><p></p><p><em><strong>Overall, there is limited work directly investigating the impact of testosterone in animal models of diabetes. Given the presence of sex differences in the development of DbCM, it is important to investigate the potential impact of sex hormones such as testosterone on the development of this condition.23 <u>Because previous evidence suggests that the impact of testosterone is dependent upon glycemic status, it is difficult to infer the role of testosterone in DbCM based on studies in nondiabetic animals</u>124,129 (Table 1). <u>Therefore, the influence of testosterone on the development of DbCM must be investigated by examining how testosterone administration directly impacts this pathology</u>.</strong></em></p></blockquote><p></p>
[QUOTE="madman, post: 274073, member: 13851"] [I][B]Diabetes is a prevalent disease, primarily characterized by high blood sugar (hyperglycemia). Significantly higher rates of myocardial dysfunction have been noted in individuals with diabetes, even in those without coronary artery disease or high blood pressure (hypertension). Numerous molecular mechanisms have been identified through which diabetes contributes to the pathology of diabetic cardiomyopathy, which presents as cardiac hypertrophy and fibrosis. At the cellular level, oxidative stress and inflammation in cardiomyocytes are triggered by hyperglycemia.[/B] Although males are generally more likely to develop cardiovascular disease than females, diabetic males are less likely to develop diabetic cardiomyopathy than diabetic females. [B]One reason for these differences may be the higher levels of serum testosterone in males compared with females. Although testosterone appears to protect against cardiomyocyte oxidative stress and exacerbates hypertrophy, its role in inflammation and fibrosis is much less clear. Additional preclinical and clinical studies will be required to delineate testosterone’s effect on the diabetic heart. [U]The objective of this review is to identify potential interactions between the actions of testosterone and hyperglycemia in cardiomyocytes (Figure 1A)[/U]. [U]This review focuses on four mechanisms associated with DbCM[/U]: hypertrophy, oxidative stress, inflammation, and fibrosis. Particular attention will be placed on studies attempting to delineate the influence of hyperglycemia/hyperlipidemia on cardiomyocytes. *Oxidative Stress *Inflammation *Hypertrophy *Fibrosis[/B][/I] [B]Conclusion and Future Directions[/B] [I][B]Overall, there is limited work directly investigating the impact of testosterone in animal models of diabetes. Given the presence of sex differences in the development of DbCM, it is important to investigate the potential impact of sex hormones such as testosterone on the development of this condition.23 [U]Because previous evidence suggests that the impact of testosterone is dependent upon glycemic status, it is difficult to infer the role of testosterone in DbCM based on studies in nondiabetic animals[/U]124,129 (Table 1). [U]Therefore, the influence of testosterone on the development of DbCM must be investigated by examining how testosterone administration directly impacts this pathology[/U].[/B][/I] [/QUOTE]
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Testosterone Replacement, Low T, HCG, & Beyond
Testosterone and Men's Health Articles
The Modulatory Effects of Testosterone on Diabetic Cardiomyopathy
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