Neuro-autonomic changes induced by remote ischemic preconditioning (RIPC) in healthy young adults: Implications for stress

Igor Khaliulin*, Arnold N Fleishman, Nadezhda Shumeiko, Tatyana Korablina, Stanislav Petrovskiy, Raimondo Ascione, M-Saadeh Suleiman

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

3 Citations (Scopus)
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Abstract

The mechanisms underlying the protective effects of remote ischemic preconditioning (RIPC) are not presently clear. Recent studies in experimental models suggest the involvement of the autonomic nervous system (ANS) in cardioprotection. The aim of this study was to investigate the changes in ANS in healthy young volunteers divided into RIPC (n=22) or SHAM (n=18) groups. RIPC was induced by 1 cycle of 4 min inflation/ 5 min deflation followed by 2 cycles of 5 min inflation/5 min deflation of a cuff placed on the upper left limb. The study included analysis of heart rate (HR), blood pressure (BP), heart rate variability (HRV), measurements of microcirculation and porphyrin fluorescence in the limb before and after the RIPC. RIPC caused reactive hyperemia in the limb and reduced blood porphyrin level. A mental load (serial sevens test) and mild motor stress (hyperventilation) were performed on all subjects before and after RIPC or corresponding rest in the SHAM group. Reduction of HR occurred during the experiments in both RIPC and SHAM groups reflecting RIPC-independent adaptation of the subjects to the experimental procedure. However, in contrast to the SHAM group, RIPC altered several of the spectral indices of HRV during the serial sevens test and hyperventilation. This was expressed predominantly as an increase in power of the very low-frequency band of the spectrum, increased values of detrended fluctuation analysis and weakening of correlation between the HRV parameters and HR. In conclusion, RIPC induces changes in the activity of ANS that are linked to stress resistance.
Original languageEnglish
Article number100189
Number of pages11
JournalNeurobiology of Stress
Volume11
Early online date27 Jul 2019
DOIs
Publication statusPublished - 1 Nov 2019

Bibliographical note

The authors are applying for publishing this manuscript under the CC-BY licence

Keywords

  • Remote Ischemic Preconditioning, Heart Rhythm Variability, Autonomic Nervous System

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