Safranal, an active constituent of saffron, ameliorates myocardial ischemia via reduction of oxidative stress and regulation of Ca2+ homeostasis.
J Pharmacol Sci
; 143(3): 156-164, 2020 Jul.
Article
em En
| MEDLINE
| ID: mdl-32278466
ABSTRACT
Safranal (SFR) is the major constituent of saffron. The purpose of this study was to observe the effect of SFR on myocardial ischemia induced by isoprenaline (ISO) and to explore its possible mechanism. The myocardial ischemia rat model was established by subcutaneous injection of ISO (85 mg/kg/d) on the 8th and 9th day of the experiment. Serum creatine kinase (CK), lactate dehydrogenase (LDH), malondialdehyde (MDA) and superoxide dismutase (SOD) were measured, as were changes in calcium concentration, reactive oxygen species (ROS) and cardiac morphology of the myocardial tissue. The effects of SFR on cell contraction, Ca2+ transient and L-type Ca2+ current (ICa-L) in isolated rat myocardial cells were measured using the Ion Optix detection system and the whole-cell patch-clamp technique. SFR can decrease the activity of serum CK, LDH and MDA, and increase the activity of serum SOD, reduce intracellular calcium concentration and the manufacture of ROS. In addition, SFR can improve changes in heart morphology. SFR can significantly inhibit contraction, Ca2+ transients and ICa-L in isolated ventricular myocytes. SFR has a cardioprotective role in ISO-induced MI rats, and the underling mechanism is related to the inhibition of oxidative stress, myocardial contractility, ICa-L and the regulation of Ca2+ homeostasis.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Terpenos
/
Cálcio
/
Isquemia Miocárdica
/
Estresse Oxidativo
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Crocus
/
Cicloexenos
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Fitoterapia
/
Miocárdio
Tipo de estudo:
Prognostic_studies
Limite:
Animals
Idioma:
En
Revista:
J Pharmacol Sci
Assunto da revista:
FARMACOLOGIA
Ano de publicação:
2020
Tipo de documento:
Article
País de afiliação:
China