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  • 1.
    Antepohl, Wolfram
    et al.
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Neuroscience and Locomotion, Rehabilitation Medicine/Pain Clinic. Östergötlands Läns Landsting, Centre for Medicine, Pain and Rehabilitation Centre.
    Herzig, S
    Problem-based learning versus lecture-based learning i a course of basic pharmacology: A controlled, randomized study.1999In: Medical Education, ISSN 0308-0110, E-ISSN 1365-2923, Vol. 33, p. 103-113Article in journal (Refereed)
  • 2.
    Elert, Jessica
    et al.
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Neuroscience and Locomotion, Rehabilitation Medicine. Östergötlands Läns Landsting, Centre for Medicine, Pain and Rehabilitation Centre.
    Sydnerth, S-B.
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Neuroscience and Locomotion, Rehabilitation Medicine/Pain Clinic. Östergötlands Läns Landsting, Centre for Medicine, Pain and Rehabilitation Centre.
    Åbjörnsson, L.
    Gerdle, Björn
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Neuroscience and Locomotion, Rehabilitation Medicine. Östergötlands Läns Landsting, Centre for Medicine, Pain and Rehabilitation Centre.
    Aspects of criterion validity and sensitivity of the BAS-health scale in chronic pain patients - a pilot study of patients at a multidisciplinary pain centre.1999In: Advances in Physics, ISSN 0001-8732, E-ISSN 1460-6976, Vol. 1, p. 83-97Article in journal (Refereed)
  • 3. Graven-Nilsen, T
    et al.
    Aspegren Kendall, Sally
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Neuroscience and Locomotion, Rehabilitation Medicine/Pain Clinic. Östergötlands Läns Landsting, Centre for Medicine, Pain and Rehabilitation Centre.
    Henriksson, Karl-Gösta
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Neuroscience and Locomotion, Rehabilitation Medicine/Pain Clinic. Östergötlands Läns Landsting, Centre for Medicine, Pain and Rehabilitation Centre.
    Bengtsson, M
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Care, Anaesthesiology. Östergötlands Läns Landsting, MKC - Medicin och kirurgicentrum, Anestesi.
    Sörensen, Jan
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Care, Anaesthesiology. Östergötlands Läns Landsting, MKC - Medicin och kirurgicentrum, Anestesi.
    Johnson, A
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Care, Anaesthesiology. Östergötlands Läns Landsting, MKC - Medicin och kirurgicentrum, Anestesi.
    Gerdle, Björn
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Neuroscience and Locomotion, Rehabilitation Medicine/Pain Clinic. Östergötlands Läns Landsting, Centre for Medicine, Pain and Rehabilitation Centre.
    Arendt-Nielsen, L
    Ketamine reduces muscle pain, temporal summation, and referred pain in fibromyalgia patients2000In: Pain, ISSN 0304-3959, E-ISSN 1872-6623, Vol. 85, no 3, p. 483-491Article in journal (Refereed)
    Abstract [en]

    Central mechanisms related to referred muscle pain and temporal summation of muscular nociceptive activity are facilitated in fibromyalgia syndrome (FMS) patients. The present study assessed the effects of an NMDA-antagonist (ketamine) on these central mechanisms. FMS patients received either i.v. placebo or ketamine (0.3 mg/kg, Ketalar(«)) given over 30 min on two separate occasions. Habitual pain intensity was assessed on a visual analogue scale (VAS). Initially, 29 FMS patients received ketamine or isotonic saline to determine which patients were ketamine responders (>50% decrease in pain intensity at rest by active drug on two consecutive VAS assessments). Fifteen out of 17 ketamine-responders were included in the second part of the study. Before and after ketamine or placebo, experimental local and referred pain was induced by intramuscular (i.m.) infusion of hypertonic saline (0.7 ml, 5%) into the tibialis anterior (TA) muscle. The saline-induced pain intensity was assessed on an electronic VAS, and the distribution of pain drawn by the subject. In addition, the pain threshold (PT) to i.m. electrical stimulation was determined for single stimulus and five repeated (2 Hz, temporal summation) stimuli. The pressure PT of the TA muscle was determined, and the pressure PT and pressure pain tolerance threshold were determined at three bilaterally located tenderpoints (knee, epicondyle, and mid upper trapezius). VAS scores of pain at rest were progressively reduced during ketamine infusion compared with placebo infusion. Pain intensity (area under the VAS curve) to the post-drug infusion of hypertonic saline was reduced by ketamine (-18.4▒0.3% of pre-drug VAS area) compared with placebo (29.9▒18.8%, P<0.02). Local and referred pain areas were reduced by ketamine (-12.0▒14.6% of pre-drug pain areas) compared with placebo (126.3▒83.2%, P<0.03). Ketamine had no significant effect on the PT to single i.m. electrical stimulation. However, the span between the PT to single and repeated i.m. stimuli was significantly decreased by the ketamine (-42.3▒15.0% of pre-drug PT) compared with placebo (50.5▒49.2%, P<0.03) indicating a predominant effect on temporal summation. Mean pressure pain tolerance from the three paired tenderpoints was increased by ketamine (16.6▒6.2% of pre-drug thresholds) compared with placebo (-2.3▒4.9%, P<0.009). The pressure PT at the TA muscle was increased after ketamine (42.4▒9.2% of pre-drug PT) compared with placebo (7.0▒6.6%, P<0.011). The present study showed that mechanisms involved in referred pain, temporal summation, muscular hyperalgesia, and muscle pain at rest were attenuated by the NMDA-antagonist in FMS patients. It suggested a link between central hyperexcitability and the mechanisms for facilitated referred pain and temporal summation in a sub-group of the fibromyalgia syndrome patients. Whether this is specific for FMS patients or a general phenomena in painful musculoskeletal disorders is not known. Copyright (C) 2000 International Association for the Study of Pain. Published by Elsevier Science B.V.

  • 4.
    Henriksson, Karl-Gösta
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Neuroscience and Locomotion, Rehabilitation Medicine/Pain Clinic. Östergötlands Läns Landsting, Local Health Care Services in Central Östergötland, Department of Neurology.
    Muscle activity and chronic muscle pain.1999In: Journal of Musculoskeletal Pain, ISSN 1058-2452, E-ISSN 1540-7012, Vol. 7, p. 101-109Article in journal (Refereed)
  • 5. Köhle, K.
    et al.
    Obliers, R.
    Koerfer, A.
    Antepohl, Wolfram
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Neuroscience and Locomotion, Rehabilitation Medicine/Pain Clinic. Östergötlands Läns Landsting, Centre for Medicine, Pain and Rehabilitation Centre.
    Thomas, W.
    Problemorientiertes lehren und lernen.1999In: Psychotherapy and Psychosomatics, ISSN 0033-3190, E-ISSN 1423-0348, Vol. 49, p. 171-175Article in journal (Refereed)
  • 6.
    Larsson, Barbro
    et al.
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Neuroscience and Locomotion, Rehabilitation Medicine/Pain Clinic.
    Björk, J.
    Elert, Jessica
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Department of Health and Society, Division of Physiotherapy.
    Gerdle, Björn
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Neuroscience and Locomotion, Rehabilitation Medicine/Pain Clinic. Östergötlands Läns Landsting, Centre for Medicine, Pain and Rehabilitation Centre.
    Mechanical performance and electromyography during repeated maximal isokinetic shoulder forward flexions in female cleaners with and without myalgia of the trapezius muscle and in healthy controls.2000In: European Journal of Applied Physiology and Occupational Physiology, ISSN 0301-5548, E-ISSN 1432-1025, Vol. 83, p. 257-267Article in journal (Refereed)
  • 7.
    Larsson, Barbro
    et al.
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Neuroscience and Locomotion, Rehabilitation Medicine/Pain Clinic.
    Björk, J
    Henriksson, Karl-Gösta
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Neuroscience and Locomotion, Rehabilitation Medicine/Pain Clinic. Östergötlands Läns Landsting, Centre for Medicine, Pain and Rehabilitation Centre.
    Gerdle, Björn
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Neuroscience and Locomotion, Rehabilitation Medicine/Pain Clinic. Östergötlands Läns Landsting, Centre for Medicine, Pain and Rehabilitation Centre.
    Lindman, R.
    The prevalences of cytochrome c oxidase negative and superpositive fibres and ragged-red fibres in the trapezius muscle of female cleaners with and without myalgia and of female healthy controls2000In: Pain, ISSN 0304-3959, E-ISSN 1872-6623, Vol. 84, no 2-3, p. 379-387Article in journal (Refereed)
    Abstract [en]

    The association of cytochrome c oxidase negative fibres (COX-negative) and ragged-red fibres (RR-fibres) with work related trapezius myalgia has been proposed. Hitherto studies have been small or without control groups. The aim of the present study was to investigate the prevalences of RR-fibres and COX-negative fibres in female cleaners with (n=25) and without (n=23) trapezius myalgia and in clinically healthy female teachers (n=21). The cleaners did mainly floor cleaning requiring monotonous loading on the trapezius muscle. A questionnaire covering background data and aspects of pain (prevalence, duration, intensity and influence on daily living) was answered. Biopsies were obtained from the trapezius muscle by an open surgical technique. The three groups did not differ in prevalence of COX-negative or COX-superpositive (i.e. type-I fibres with extremely strong brownish reaction in both the COX and SDH/COX stainings) fibres. The prevalence of COX-negative fibres was age dependent. Two subgroups of RR-fibres were present when stained for COX, COX-negative (73%) and COX-superpositive (26%) fibres. Forty-two percent of the COX-negative fibres were RR-fibres and 79% of the COX-superpositive were RR-fibres. A significantly (P=0.002) higher proportion of the COX-superpositive fibres in the cleaners were RR-fibres compared to the teachers. Multivariate regression analysis revealed that age, occupation as cleaner and a tender point in the trapezius were significantly associated with increased prevalences of RR-fibres, a cleaner with a tender point had a 4.35 higher prevalence of RR-fibres compared to a teacher without a tender point. No correlations between other pain related variables and prevalence of RR-fibres were noted. In conclusion, RR-fibres but not COX-negative or COX-superpositive fibres were correlated with cleaning work tasks and with a tender point in the trapezius.

  • 8. Yagupolskii, LM
    et al.
    Yagupolskii, LM
    Antepohl, Wolfram
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Neuroscience and Locomotion, Rehabilitation Medicine/Pain Clinic. Östergötlands Läns Landsting, Centre for Medicine, Pain and Rehabilitation Centre.
    Artunc, F
    Artunc, F
    Handrock, R.
    Klebanov, BM
    Vasorelaxation by new hybrid compounds containing dihydropyridine and pinacidil-like moieties.2000In: Journal of Medicinal Chemistry, ISSN 0022-2623, E-ISSN 1520-4804, Vol. 42, p. 5266-5271Article in journal (Refereed)
1 - 8 of 8
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