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Method of Combined Intermittent Hypoxia and Surface Muscle Electrostimulation for Enhancing Peripheral Stem Cells in Humans

  • Ginés ViscorEmail author
  • Casimiro Javierre
  • Teresa Pagès
  • Luisa Corral
  • Joan Ramon Torrella
  • Antoni Ricart
  • Josep Lluis Ventura
Chapter

Abstract

Short-term intermittent hypoxia exposure, at a level well tolerated by healthy humans and previously shown by our group to increase erythropoietin and erythropoiesis, could mobilize hematopoietic stem cells (HSC) and increase their presence in peripheral circulation. Four healthy male volunteers were subjected to three protocols: one with only hypoxic stimulus (OH), another with hypoxic stimulus plus muscle electrostimulation (HME), and the third with only muscle electrostimulation (OME). Intermittent hypobaric hypoxia exposure consisted of three sessions of 3 h inside a hypobaric chamber at a barometric pressure 535 hPa (equivalent to an altitude of 5,000 m) for 3 consecutive days. Muscular electrostimulation was performed in two separate periods of 25 min within each session. Blood samples were obtained from an antecubital vein on 3 consecutive days immediately before the experiment and 24, 48 h, 4, and 7 days after the last day of hypoxic exposure. There was a clear increase in the number of circulating CD34+ cells but only after the experimental program combining hypobaric hypoxia and muscular electrostimulation. This response was not observed after the isolated application of the same stimuli. Our results open a new application field for intermittent hypobaric hypoxia as a way to increase peripheral HSC concentration. Muscle electrostimulation combined with hypoxia can be a useful tool for patients with a wide variety of conditions limiting classical physical exercise.

Keywords

Hematopoietic Stem Cell Intermittent Hypoxia Hypobaric Hypoxia Hypoxia Exposure Simulated Altitude 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Abbreviations

CXCR4

CXC receptor 4

EPO

Erythropoietin

FITC

Fluorescein isothiocyanate

G-CSF

Granulocyte colony-stimulating factor

HME

Hypoxic stimulus plus muscle electrostimulation

HSCs

Hematopoietic stem cells

IH

Intermittent hypoxia

OH

Only hypoxic stimulus

OME

Only muscle electrostimulation

SCs

Stem cells

SDF1

Stromal-derived factor 1

Notes

Acknowledgments

The authors are grateful to Dr. Gregorio Martín-Henao and Ms. Carmen Azqueta from Unitat de Teràpia Cel·lular (Centre de Transfusió i Banc de Teixits) for their key contribution in HSC quantification. We also acknowledge Mr. Víctor Gómez for his kind support to our research group and for his critical participation in the installation of the hypobaric chamber and annexed facilities. We are also grateful to Mr. Juan A. Silva from Universidad de Antofagasta (Chile) by his collaboration in some data collection, and to Mr. Robin Rycroft (Language Advice Service, Universitat de Barcelona) for his useful help in editing the manuscript. Finally, we wish to express our gratitude and appreciation to Prof. Ramon Segura for his mentoring tasks of our research group and to Prof. Luis Palacios for his support and ideas and his pioneering impulse on hypobaric studies.

Competing Interests

This study was performed without support from any public or private fund, agency, or company. The authors declare that they have no competing interests. This chapter is based on a previous study that was published in J Transl Med (2009) 7:91.

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Copyright information

© Springer-Verlag London 2012

Authors and Affiliations

  • Ginés Viscor
    • 1
    Email author
  • Casimiro Javierre
    • 2
  • Teresa Pagès
    • 1
  • Luisa Corral
    • 2
    • 3
  • Joan Ramon Torrella
    • 1
  • Antoni Ricart
    • 3
  • Josep Lluis Ventura
    • 3
  1. 1.Departament de Fisiologia i ImmunologiaUniversitat de BarcelonaBarcelonaSpain
  2. 2.Departament de Ciències Fisiològiques IIUniversitat de Barcelona, IDIBELL, Feixa Llarga s/nBarcelonaSpain
  3. 3.Servei de Medicina IntensivaHospital Universitari de Bellvitge, IDIBELL, Feixa Llarga s/nBarcelonaSpain

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