Dulce Raul A, Hatzistergos Konstantinos E, Kanashiro-Takeuchi Rosemeire M, Takeuchi Lauro M, Balkan Wayne, Hare Joshua M
Interdisciplinary Stem Cell Institute, University of Miami Miller School of Medicine, Biomedical Research Building, 1501 N.W. 10th Avenue, Room 908, Miami, FL, 33136, USA.
Department of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, Thessaloniki, 54124, Greece.
Rev Endocr Metab Disord. 2025 Jan 30. doi: 10.1007/s11154-024-09939-0.
Growth hormone (GH)-releasing hormone (GHRH), a hypothalamic peptide initially characterized for its role in GH regulation, has gained increasing attention due to its GH-independent action on peripheral physiology, including that of the cardiovascular system. While its effects on the peripheral vasculature are still under investigation, GHRH and synthetic agonists have exhibited remarkable receptor-mediated cardioprotective properties in preclinical models. GHRH and its analogs enhance myocardial function by improving contractility, reducing oxidative stress, inflammation, and offsetting pathological remodeling. Studies performed in small and large animal models have demonstrated the efficacy of these compounds in diverse cardiomyopathies, suggesting their potential as promising therapeutic agents. However, the clinical translation of GHRH synthetic analogs still faces challenges related to the route of administration and potential side effects mainly associated with activation of the GH/IGF-I axis. Despite these hurdles, the compelling evidence supporting their role in cardiac repair makes GHRH analogs attractive candidates for clinical testing in the treatment of various cardiac diseases.
生长激素(GH)释放激素(GHRH)是一种下丘脑肽,最初因其在生长激素调节中的作用而被描述,由于其对包括心血管系统在内的外周生理学具有不依赖生长激素的作用,因此越来越受到关注。虽然其对外周血管系统的影响仍在研究中,但在临床前模型中,GHRH和合成激动剂已表现出显著的受体介导的心脏保护特性。GHRH及其类似物通过改善收缩性、减少氧化应激、炎症和抵消病理重塑来增强心肌功能。在小型和大型动物模型中进行的研究已经证明了这些化合物在各种心肌病中的疗效,表明它们作为有前景的治疗药物的潜力。然而,GHRH合成类似物的临床转化仍然面临与给药途径相关的挑战以及主要与GH/IGF-I轴激活相关的潜在副作用。尽管有这些障碍,但支持它们在心脏修复中作用的令人信服的证据使GHRH类似物成为治疗各种心脏病的临床试验的有吸引力的候选药物。
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