PPARGC1A and myocardial ischemia: Components of &lt;i&gt;Panax ginseng&lt;/i&gt; and &lt;i&gt;Rhodiola rosea&lt;/i&gt; regulate mitophagy via the SIRT1/3-PGC-1α-NRF2 pathway to improve myocardial ischemia-reperfusion injury.