RGD Reference Report - 2-methoxycinnamaldehyde from Cinnamomum cassia reduces rat myocardial ischemia and reperfusion injury in vivo due to HO-1 induction. - Rat Genome Database

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2-methoxycinnamaldehyde from Cinnamomum cassia reduces rat myocardial ischemia and reperfusion injury in vivo due to HO-1 induction.

Authors: Hwa, JS  Jin, YC  Lee, YS  Ko, YS  Kim, YM  Shi, LY  Kim, HJ  Lee, JH  Ngoc, TM  Bae, KH  Kim, YS  Chang, KC 
Citation: Hwa JS, etal., J Ethnopharmacol. 2012 Jan 31;139(2):605-15. doi: 10.1016/j.jep.2011.12.001. Epub 2011 Dec 9.
RGD ID: 10755573
Pubmed: PMID:22179023   (View Abstract at PubMed)
DOI: DOI:10.1016/j.jep.2011.12.001   (Journal Full-text)

ETHNOPHARMACOLOGICAL RELEVANCE: Cinnamomum cassia Blume has been used as a traditional Chinese herbal medicine for alleviation of fever, inflammation, chronic bronchitis, and to improve blood circulation. AIM OF THE STUDY: We addressed whether 2-methoxycinnamaldehyde (2-MCA), one of active ingredients of Cinnamomum cassia, reduces vascular cell adhesion molecule-1 (VCAM-1) expression in tumor necrosis factor-alpha (TNF-alpha)-activated endothelial cells and protects ischemia/reperfusion (I/R)-injury due to heme oxygenase (HO)-1 induction. MATERIALS AND METHODS: Adult male rats were subjected to 30 min of ischemia by occlusion of the left anterior descending coronary artery followed by 24h of reperfusion. Rats were randomized to receive vehicle or 2-MCA (i.v.) 10 min before reperfusion. RESULTS: Administration of 2-MCA significantly improved I/R-induced myocardial dysfunction by increasing the values of the first derivative (+/-dp/dt) of left ventricular pressure and decreased infarct size. In addition, 2-MCA reduced the expression of high mobility group box 1 (HMGB1), an activator of the inflammatory cascade when released into the extracellular space, and VCAM-1 in I/R myocardium along with increase of HO-1 induction. The reduced injury was accompanied by significantly reduction of neutrophils infiltration and increased SOD activity in ischemic tissues and reduced serum level of cardiac troponin I (cTnI). Furthermore, 2-MCA significantly increased HO-1 induction by translocation of Nrf-2 from cytosol to nucleus in endothelial cells. Inhibition of VCAM-1 expression by 2-MCA was reversed both by SnPPIX, a HO-1 inhibitor and siHO-1 RNA trasfection in TNF-alpha-activated cells. In addition, 2-MCA significantly inhibited NF-kappaB luciferase activity in TNF-alpha-activated endothelial cells. As expected, 2-MCA significantly inhibited monocyte (U937) adhesion to endothelial cells. CONCLUSION: We concluded that 2-MCA protects of myocardial I/R-injury due to antioxidant and anti-inflammatory action possibly by HO-1 induction which can be explained why Cinnamomum cassia has been used in inflammatory disorders.




  
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Qualifier
Evidence
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Original Reference(s)
HMOX1HumanMyocardial Reperfusion Injury treatmentISOHmox1 (Rattus norvegicus) RGD 
Hmox1RatMyocardial Reperfusion Injury treatmentIEP  RGD 
Hmox1MouseMyocardial Reperfusion Injury treatmentISOHmox1 (Rattus norvegicus) RGD 


Genes (Rattus norvegicus)
Hmox1  (heme oxygenase 1)

Genes (Mus musculus)
Hmox1  (heme oxygenase 1)

Genes (Homo sapiens)
HMOX1  (heme oxygenase 1)