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Exercise is a potent stimulus for enhancing circulating DNase activity.

Martina Velders1, Gunnar Treff1, Katja Machus1

  • 1Division of Sports and Rehabilitation Medicine, Ulm University Medical Center, Germany.

Clinical Biochemistry
|December 31, 2013
PubMed
Summary

High-intensity exercise boosts circulating DNase activity, aiding cell-free DNA (cfDNA) clearance. This natural increase in DNase activity after exercise may offer non-pharmacological benefits for conditions with elevated cfDNA.

Keywords:
Cell free DNACystic fibrosisDNase activityRowing

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Area of Science:

  • Exercise Physiology
  • Molecular Biology
  • Biochemistry

Background:

  • Cell-free DNA (cfDNA) plays a role in various physiological and pathological processes.
  • Elevated cfDNA levels are associated with conditions like cystic fibrosis.
  • DNase enzymes are crucial for cfDNA clearance.

Purpose of the Study:

  • To investigate the kinetics of cell-free DNA (cfDNA) clearance after high-intensity exercise.
  • To measure the reduction in circulating DNase activity (AR) following exercise.

Main Methods:

  • Participants underwent a bout of high-intensity rowing exercise until exhaustion.
  • Serum cfDNA concentration and DNase activity reduction (AR) were measured pre-exercise and at immediate, 7-minute, and 30-minute post-exercise time points.

Main Results:

  • Serum cfDNA concentration significantly increased immediately post-exercise and at 7 minutes, returning near baseline by 30 minutes.
  • A concomitant, significant decrease in serum DNase activity reduction (AR) was observed post-exercise, returning towards baseline by 30 minutes.

Conclusions:

  • High-intensity exercise acts as a potent stimulus for increasing circulating DNase activity in healthy individuals.
  • Acute exercise may serve as a non-pharmacological method to enhance DNase activity.
  • Findings could be relevant for managing conditions with elevated cfDNA, potentially complementing treatments like recombinant human DNase (rhDNase).