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Influence of growth hormone on cardiovascular health and disease
Annamaria Colao1, Carolina Di Somma, Giovanni Vitale
1Department of Molecular and Clinical Endocrinology and Oncology, Federico II University, Naples, Italy. colao@unina.it
Insights
Growth hormone (GH) deficiency and excess impact heart health, potentially reducing life expectancy. GH therapy may reverse some cardiovascular abnormalities in patients with GH deficiency.
Area of Science:
- Cardiology
- Endocrinology
- Metabolic Diseases
Background:
- Growth hormone (GH) and insulin-like growth factor-1 (IGF-1) play roles in cardiac development.
- GH deficiency (GHD) is linked to cardiac structural and functional abnormalities, increasing cardiovascular risk.
Purpose of the Study:
- To review the impact of GH on cardiovascular function.
- To explore the potential of GH therapy in managing cardiovascular complications associated with GHD.
Main Methods:
- Review of experimental and clinical studies on GH, IGF-1, and cardiovascular health.
- Analysis of data on cardiac structure, function, and vascular changes in GHD patients.
- Evaluation of the effects of somatropin (recombinant GH) therapy.
Main Results:
- GHD is associated with reduced cardiac mass, impaired diastolic filling, and diminished exercise response.
- GHD patients exhibit increased vascular intima-media thickness and atheromatous plaques, elevating cardiovascular and cerebrovascular risk.
- Somatropin therapy has shown potential in partially reversing cardiac abnormalities and improving hemodynamics in GHD patients and heart failure.
Conclusions:
- GH plays a significant role in cardiovascular health.
- Somatropin therapy offers promising therapeutic perspectives for cardiovascular complications in GHD.
- Further extensive studies are needed to confirm these findings and explore GH secretagogues in heart failure.
Abstract:
Experimental and clinical studies indicate that growth hormone (GH) and insulin-like growth factor-1 (IGF-1) are involved in heart development. Impaired cardiovascular function, as recently demonstrated, could potentially reduce life expectancy both in GH deficiency (GHD) and excess. Patients with childhood- or adult-onset GHD may have both cardiac structural and functional abnormalities, i.e. reduced cardiac mass, reduced diastolic filling, and impaired left ventricular response to peak exercise. In addition, GHD patients may present with an increase in vascular intima-media thickness and a higher occurrence of atheromatous plaques that can further aggravate the hemodynamic conditions and contribute to the increased cardiovascular and cerebrovascular risk. However, some evidence has been provided to show that cardiovascular abnormalities can be partially reversed after somatropin (recombinant GH) therapy in patients with GHD. Recently, somatropin administration was shown to induce improvement in hemodynamics and clinical status in some patients with heart failure. Although these data need to be confirmed in more extensive studies, such promising results open new perspectives for somatropin therapy. The role of GH secretagogues in heart failure is still unknown.
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