Kiscsatári L, Sárközy M, Kővári B, Varga Z, Gömöri K, Morvay N, Leprán I, Hegyesi H, Fábián G, Cserni B, Cserni G, Csont T, Kahán Z. High-dose Radiation Induced Heart Damage in a Rat Model.
In Vivo 2016;
30:623-631. [PMID:
27566082]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Accepted: 07/05/2016] [Indexed: 06/06/2023]
Abstract
BACKGROUND/AIM
Radiation-induced heart disease (RIHD) is a concern during radiotherapy. For its comprehensive study, an in vivo selective heart irradiation model was developed.
MATERIALS AND METHODS
Sprague-Dawley rats were irradiated with 50 Gy and functional imaging, biochemical (circulating growth differentiation factor-15 (GDF-15), transforming growth factor-beta (TGF-beta) and morphological (picrosirius red staining of the heart) objectives were tested.
RESULTS
Signs and symptoms of RIHD occurred >12 weeks after irradiation with tachypnea, systolic and diastolic dysfunction, cardiac hypertrophy and body development retardation. Plasma GDF-15 was increased 3, 12 and 26, while plasma TGF-beta was increased 12 weeks after irradiation. At autopsy, extensive pleural fluid was found in the irradiated animals. Interstitial fibrosis could be reliably detected and quantified in irradiated hearts after a follow-up time of 19 weeks.
CONCLUSION
The studied parameters could be used in future experiments for testing protective agents for prevention of radiation heart injury.
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