Melatonin protects against heart ischemia-reperfusion injury by inhibiting mitochondrial permeability transition pore opening

When this came out in August 2014 did your hospital do ONE DAMN THING to see if this would help stroke survivors in their recovery? You can probably sue them $1000 per neuron not saved. Lawsuits may be the only way stroke advances, nothing else is working. Whom is responsible for such incompetence? I lay that at the board of directors feet for not making sure proper performance goals are set and conformed to.
18 posts on melatonin back to February 2012 so you can see how incompetent your doctor and stroke hospital are:

• melatonin (18)

Melatonin protects against heart ischemia-reperfusion injury by inhibiting mitochondrial permeability transition pore opening

Petrosillo G¹, Colantuono G, Moro N, Ruggiero FM, Tiravanti E, Di Venosa N, Fiore T, Paradies G.

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Abstract

Melatonin, a well-known antioxidant, has been shown to protect against ischemia-reperfusion myocardial damage. Mitochondrial permeability transition pore (MPTP) opening is an important event in cardiomyocyte cell death occurring during ischemia-reperfusion and therefore a possible target for cardioprotection. In the present study, we tested the hypothesis that melatonin could protect heart against ischemia-reperfusion injury by inhibiting MPTP opening. Isolated perfused rat hearts were subjected to global ischemia and reperfusion in the presence or absence of melatonin in a Langerdoff apparatus. Melatonin treatment significantly improves the functional recovery of Langerdoff hearts on reperfusion, reduces the infarct size, and decreases necrotic damage as shown by the reduced release of lactate dehydrogenase. Mitochondria isolated from melatonin-treated hearts are less sensitive than mitochondria from reperfused hearts to MPTP opening as demonstrated by their higher resistance to Ca(2+). Similar results were obtained following treatment of ischemic-reperfused rat heart with cyclosporine A, a known inhibitor of MPTP opening. In addition, melatonin prevents mitochondrial NAD(+) release and mitochondrial cytochrome c release and, as previously shown, cardiolipin oxidation associated with ischemia-reperfusion. Together, these results demonstrate that melatonin protects heart from reperfusion injury by inhibiting MPTP opening, probably via prevention of cardiolipin peroxidation.

PMID:

19684190

DOI:

10.1152/ajpheart.00163.2009

[Indexed for MEDLINE]

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