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Under hypoxia or high-altitude hypoxia ,it has been found that 2,3-bisphosphoglycerate(2,3-BPG) in erythrocyte increased and facilitated oxygen release to tissues.Remote Ischemic Conditioning(RIC) can also cause hypoxic conditions in local limbs.Thus,we hypothesize that whether RIC could also increase 2,3-BPG in erythrocyte.
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RIC is induced by short-term insulting blood-flow of nonvital distant organs intermittently and has been proved to be effective in ischemic stroke and myocardial infarction(MI).The possible mechanisms of RIC protection is complicated.RIC leads to local ischemia and hypoxia and has been demonstrated to play a role in vital organs through hypoxia inducible factors(HIF) against stroke and MI.Besides HIF, hypoxia or high-altitude hypoxia could also change glycolytic process in erythrocyte through adenosine or sphingosine-1-phosphate(S1P).Accompanying with alternating glucolysis, 2,3-diphosphoglycerate(2,3-BPG) in erythrocyte increases and it also facilitating oxygen release to tissues.Thus,we hypothesize that whether RIC could also increase 2,3-BPG in erythrocyte.There are 8 arms in this trial: All arms are RIC treatment. The level of 2,3-BPG in erythrocyte will be assessed by ELISA before and after the treatment.
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40 participants in 8 patient groups
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Lin Wang; Xunming Ji, MD, PhD
Data sourced from clinicaltrials.gov
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