RT Journal Article
T1 Beneficial effects of melatonin on cardiological alterations in a murine model of accelerated aging
A1 Forman, Katherine
A1 Vara Ameigeiras, Elena María
A1 García Martín, M. Cruz
A1 Kireev, Roman
A1 Cuesta Sancho, Sara
A1 Acuña Castroviejo, Darío
A1 Fernández-Tresguerres Hernández, Jesús Ángel
AB This study investigated the effect of aging-related parameters such as inflammation, oxidative stress and cell death in the heart in an animal model of accelerated senescence and analyzed the effects of chronic administration of melatonin on these markers. Thirty male mice of senescence-accelerated prone (SAMP8) and 30 senescence-accelerated-resistant mice (SAMR1) at 2 and 10 months of age were used. Animals were divided into eight experimental groups, four from each strain: two young control groups, two old untreated control groups, and four melatonin-treated groups. Melatonin was provided at two different dosages (1 and 10 mg/kg/day) in the drinking water. After 30 days of treatment, the expression of inflammatory mediators (tumor necrosis factor-alpha, interleukin 1 and 10, NFkBp50 and NFkBp52), apoptosis markers (BAD, BAX and Bcl2) and parameters related to oxidative stress (heme oxygenases 1 and 2, endothelial and inducible nitric oxide synthases) were determined in the heart by real-time reverse transcription polymerase chain reaction (RT-PCR). Inflammation, as well as, oxidative stress and apoptosis markers was increased in old SAMP8 males, when compared to its young controls. SAMR1 mice showed significantly lower basal levels of the measured parameters and smaller increases with age or no increases at all. After treatment with melatonin, these age-altered parameters were partially reversed, especially in SAMP8 mice. The results suggest that oxidative stress and inflammation increase with aging and that chronic treatment with melatonin, a potent antioxidant, reduces these parameters. The effects were more marked in the SAMP8 animals
PB Wiley
SN 0742-3098
SN 0742-3098
YR 2010
FD 2010-08-03
LK https://hdl.handle.net/20.500.14352/99747
UL https://hdl.handle.net/20.500.14352/99747
LA eng
NO Forman K, Vara E, García C, Kireev R, Cuesta S, Acuña-Castroviejo D, Tresguerres JA. Beneficial effects of melatonin on cardiological alterations in a murine model of accelerated aging. J Pineal Res. 2010 Oct;49(3):312-20. doi: 10.1111/j.1600-079X.2010.00800.x
NO Instituto de Salud Carlos III
NO Junta de Andalucía
DS Docta Complutense
RD 6 abr 2025