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Diagnostics 2016, 6(4), 40; doi:10.3390/diagnostics6040040

The Effect of Exercise on Salivary Viscosity

Department of Oral Biochemistry, Academic Centre for Dentistry Amsterdam, 1081LA, Amsterdam, The Netherlands
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Academic Editors: David Wong and Martin Weber
Received: 29 September 2016 / Revised: 4 November 2016 / Accepted: 8 November 2016 / Published: 16 November 2016
(This article belongs to the Special Issue Oral Fluid-Based Molecular Diagnostics)
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Abstract

A common experience after exercise is the presence of a thick and sticky saliva layer on the oral surfaces, which causes a feeling of a dry mouth. Since the salivary mucin MUC5B is responsible for the visco-elastic behavior of saliva, in the present study we explored the effect of exercise on both the salivary viscosity and the secretion of MUC5B in saliva. Twenty healthy dental students performed an aerobic exercise by cycling for 15 min on cycle-ergometers at a heart rate of 130–140 beats per minute. Saliva was collected at three time points: before exercise, immediately after exercise and after 30 min recovery. Salivary flow rate, viscosity, amylase activity, total protein, carbohydrate and MUC5B concentration were determined. Salivary flow rate, protein and amylase did not change significantly. Immediately after exercise, the salivary viscosity and carbohydrate concentration were significantly higher than at baseline and after 30 min recovery. Immediately after exercise, the MUC5B concentration was significantly higher than after 30 min recovery. It is concluded that the presence of thick saliva after exercise is at least partially due to an increased secretion of MUC5B. View Full-Text
Keywords: exercise; MUC5B; amylase; protein exercise; MUC5B; amylase; protein
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Ligtenberg, A.J.M.; Liem, E.H.S.; Brand, H.S.; Veerman, E.C.I. The Effect of Exercise on Salivary Viscosity. Diagnostics 2016, 6, 40.

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