Acute and Chronic Effects of Tefillin Use on Remote Cardiac Ischemic Preconditioning

Remote ischemic preconditioning (RIPC) is a process via which short bursts of ischemia result in dramatic subsequent protection in remote organs from a prolonged ischemic injury such as myocardial infarction from reperfusion injury. The translation of RIPC stimuli to clinically relevant therapies has not been successful as almost all prior research on RIPC (animal and human) involved the full blockage of blood flow to an organ or extremity (in humans commonly with full inflation cycles of a blood pressure cuff). Our laboratory's key translational insight involved the Jewish tradition of donning tefillin (phylacteries) that is traditionally worn on an almost daily basis by Jewish orthodox men on the non-dominant arm in a non-obstructive manner (NOB).

My laboratory has made substantial progress by demonstrating that tefillin induced NOB induces an RIPC phenotype in healthy (mostly) men. The overarching hypothesis of this proposal is that full arm NOB via tefillin results in a preconditioning stimulus in women that is sufficient to induce an RIPC phenotype. The sole aim will test the hypothesis that full arm NOB (in healthy females) results in an inducible RIPC phenotype that increases over time as measured via clinically relevant variables derived from heart rate variability monitoring and inflammatory markers.