European journal of pain : EJP
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This study investigated whether intramuscular injection of delta-9-tetrahydrocannabinol (THC), by acting on peripheral cannabinoid (CB) receptors, could decrease nerve growth factor (NGF)-induced sensitization in female rat masseter muscle; a model which mimics the symptoms of myofascial temporomandibular disorders. ⋯ Our results suggest THC could reduce masticatory muscle pain through activating peripheral CB1 receptors. Peripheral application of cannabinoids could be a novel approach to provide analgesic relief without central side effects.
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Randomized Controlled Trial
Visually induced analgesia during massage treatment in chronic back pain patients.
Previous findings suggest that watching sites of experimental and chronic pain can exert an analgesic effect. Our present study investigates whether watching one's back during massage increases the analgesic effect of this treatment in chronic back pain patients. ⋯ This study shows that inducing visual induced analgesia during massage treatment can be helpful in alleviating chronic pain.
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Randomized Controlled Trial
Testing the validity of telephone interviews to assess chronic pain in children and adolescents: A randomized cross-over trial.
Telephone surveys are intended to reduce attrition in longitudinal studies. For paediatric chronic pain patients, the comparability of pain-related information gathered using telephone interviews and postal surveys remain unknown. Furthermore, it remains unknown how social desirability may influence answers. ⋯ Telephone interviews are a good method to achieve a high response rate and obtain valid data in studies with paediatric chronic pain patients.
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Randomized Controlled Trial
Cervical stability training with and without core stability training for patients with cervical disc herniation: A randomized, single-blind study.
This study aims at evaluating and comparing the effects of cervical stability training to combined cervical and core stability training in patients with neck pain and cervical disc herniation. ⋯ Both cervical stability training and its combination with core stability training were significantly and similarly effective on neck pain and neck muscle endurance in patients with cervical disc herniation.