Refractory neutrophils and monocytes in patients with inflammatory bowel disease after repeated bouts of prolonged exercise
Roy Spijkerman 1,2,3, Lillian Hesselink1,2, Carlo Bertinetto4, Coen CWG Bongers 5, Falco Hietbrink1, Nienke Vrisekoop 2,3, Luke PH Leenen1, Maria TE Hopman5, Jeroen J Jansen4, Leo Koenderman2,3.
1 Department of Trauma Surgery, University Medical Center Utrecht (Heidelberglaan 100, 3584 CX), Utrecht, The Netherlands.
2Center for Translational Immunology (CTI), University Medical Center Utrecht (Heidelberglaan 100, 3584 CX), Utrecht, The Netherlands.

3 Department of Respiratory Medicine, University Medical Center Utrecht (Heidelberglaan 100, 3584 CX), Utrecht, The Netherlands

4Institute for Molecules and Materials (Analytical Chemistry), Radboud University (Heyendaalseweg 135, 6525 AJ), Nijmegen, The Netherlands

5Department of Physiology Radboud Institute for Health Sciences (RIHS), Radboud university medical center (Geert Grooteplein Zuid 10, 6525 GA), Nijmegen, The Netherlands.
Correspondence to:Leo Koenderman, Department of Respiratory Medicine and Center for Translational Immunology, University Medical Center Utrecht (Heidelberglaan 100, 3584 CX), Utrecht, The Netherlands E-mail: l.koenderman@umcutrecht.nl
Funding: The AQUIOS CL® “load & go” flow cytometer is provided by the company Beckman Coulter Life Sciences, Miami, FL, USA. All authors declare that there are no other competing interests. This article was supported by a grant of the Netherlands Organization for Scientific Research (NWO) in the framework of the “Startimpulse Measurement & Detection of healthy behavior” Dutch National Research Agenda.
Conflicts of interest: All authors declare that they do not have potential conflicts of interest.