PMID- 23911699 OWN - NLM STAT- MEDLINE DCOM- 20140702 LR - 20220408 IS - 1872-6623 (Electronic) IS - 0304-3959 (Linking) VI - 154 IP - 12 DP - 2013 Dec TI - Effect of conditioned pain modulation on trigeminal somatosensory function evaluated by quantitative sensory testing. PG - 2684-2690 LID - 10.1016/j.pain.2013.07.049 [doi] AB - The aim of the study was to systematically investigate the effect of craniofacially evoked conditioned pain modulation on somatosensory function using a quantitative sensory testing (QST) protocol applied to the trigeminal area in healthy humans. Pressure pain evoked by a mechanical compressive device was applied as conditioning stimulus (CS) in the craniofacial region, with a pain intensity of 5 on a visual analogue scale (VAS: 0-10 cm) (painful session) or with VAS score of 0 (control session). A full QST battery of 13 parameters was performed as test stimuli on the dominant-side cheek. The individual QST data from 11 men and 12 women were transformed into z scores, and the QST data and z scores were tested using analyses of variance. Analyses of variance of pressure pain threshold (PPT) data (log-transformed values and z scores) indicated significant session (P /= .053, effect size >/= .166). The session-time interaction showed that the PPTs in the painful session were associated with significantly higher log-transformed PPT values and significantly lower z scores compared with the control session at the time point during CS (hypoalgesia) (P < .001). No other QST parameters were significantly modulated by the CS. Sex differences were not detected in this study; a larger sample size may be needed to further explore this possibility. However, the findings indicate that when extensive QST protocols are applied, PPT may be the most sensitive measure to detect endogenous pain inhibitory mechanisms. CI - Copyright (c) 2013 International Association for the Study of Pain. Published by Elsevier B.V. All rights reserved. FAU - Oono, Yuka AU - Oono Y AD - Center for Sensory-Motor Interaction (SMI), Department of Health Science and Technology, Faculty of Medicine, Aalborg University, Aalborg, Denmark Section of Anesthesiology and Clinical Physiology, Department of Oral Restitution, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan Section of Clinical Oral Physiology, Department of Dentistry, Aarhus University, Aarhus, Denmark Department of Oral & Maxillofacial Surgery, Aalborg Hospital, Aalborg, Denmark Center of Functionally Integrative Neuroscience (CFIN), MindLab, Aarhus University Hospital, Aarhus, Denmark. FAU - Baad-Hansen, Lene AU - Baad-Hansen L FAU - Wang, Kelun AU - Wang K FAU - Arendt-Nielsen, Lars AU - Arendt-Nielsen L FAU - Svensson, Peter AU - Svensson P LA - eng GR - K12-DE14069/DE/NIDCR NIH HHS/United States GR - R21-DE018768/DE/NIDCR NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20130801 PL - United States TA - Pain JT - Pain JID - 7508686 SB - IM MH - Adult MH - Conditioning, Psychological/*physiology MH - Evoked Potentials, Somatosensory/*physiology MH - Female MH - Humans MH - Male MH - Middle Aged MH - Pain/diagnosis/*physiopathology MH - Pain Management/*methods/psychology MH - Pain Measurement/*methods MH - Pain Threshold/physiology/psychology MH - Pressure/adverse effects MH - Treatment Outcome MH - Trigeminal Nerve/*physiology MH - Young Adult OTO - NOTNLM OT - Conditioned pain modulation OT - Diffuse noxious inhibitory controls OT - Experimental pain in humans OT - Pain modulation OT - Quantitative sensory testing OT - Trigeminal pain physiology EDAT- 2013/08/06 06:00 MHDA- 2014/07/06 06:00 CRDT- 2013/08/06 06:00 PHST- 2013/02/10 00:00 [received] PHST- 2013/07/23 00:00 [revised] PHST- 2013/07/26 00:00 [accepted] PHST- 2013/08/06 06:00 [entrez] PHST- 2013/08/06 06:00 [pubmed] PHST- 2014/07/06 06:00 [medline] AID - 00006396-201312000-00017 [pii] AID - 10.1016/j.pain.2013.07.049 [doi] PST - ppublish SO - Pain. 2013 Dec;154(12):2684-2690. doi: 10.1016/j.pain.2013.07.049. Epub 2013 Aug 1.