Published in Pain on April 01, 2008
A comparison between enriched and nonenriched enrollment randomized withdrawal trials of opioids for chronic noncancer pain. Pain Res Manag (2011) 0.98
New treatment options in the management of fibromyalgia: role of pregabalin. Neuropsychiatr Dis Treat (2008) 0.85
Research designs for proof-of-concept chronic pain clinical trials: IMMPACT recommendations. Pain (2014) 0.84
Response to: Long-term trials of pregabalin and duloxetine for fibromyalgia symptoms: How study designs can affect placebo factors. Pain (2008) 0.75
Determining long-term efficacy for treatment of chronic pain in fibromyalgia patients. Pain (2008) 0.75
Importance of Measuring Placebo Factors in Complex Clinical Trials. Pain (2008) 0.75
Role of Placebo Factors in Clinical Trials with Special Focus on Enrichment Designs. Pain (2008) 0.75
A comprehensive review of the placebo effect: recent advances and current thought. Annu Rev Psychol (2008) 4.43
The impact of patient expectations on outcomes in four randomized controlled trials of acupuncture in patients with chronic pain. Pain (2007) 4.18
Pregabalin for the treatment of postherpetic neuralgia: a randomized, placebo-controlled trial. Neurology (2003) 3.45
Is acupuncture analgesia an expectancy effect? Preliminary evidence based on participants' perceived assignments in two placebo-controlled trials. Eval Health Prof (2005) 2.91
A randomized, double-blind, placebo-controlled, phase III trial of pregabalin in the treatment of patients with fibromyalgia. J Rheumatol (2008) 2.67
Pregabalin relieves symptoms of painful diabetic neuropathy: a randomized controlled trial. Neurology (2004) 2.40
A randomized, double-blind, placebo-controlled trial of duloxetine in the treatment of women with fibromyalgia with or without major depressive disorder. Pain (2005) 2.10
Gabapentin in the treatment of fibromyalgia: a randomized, double-blind, placebo-controlled, multicenter trial. Arthritis Rheum (2007) 1.61
A double-blind placebo-controlled trial of milnacipran in the treatment of fibromyalgia. Hum Psychopharmacol (2004) 1.35
Comparison of amitriptyline, cyclobenzaprine, and placebo in the treatment of fibromyalgia. A randomized, double-blind clinical trial. Arthritis Rheum (1994) 1.28
Threats to the validity of clinical trials employing enrichment strategies for sample selection. Control Clin Trials (1998) 1.19
A comparison of placebo effects in clinical analgesic trials versus studies of placebo analgesia. Pain (2002) 3.17
Racial/ethnic differences in the experience of chronic pain. Pain (2002) 2.40
The contributions of suggestion, desire, and expectation to placebo effects in irritable bowel syndrome patients. An empirical investigation. Pain (2003) 2.33
The melanocortin-1 receptor gene mediates female-specific mechanisms of analgesia in mice and humans. Proc Natl Acad Sci U S A (2003) 2.29
The A118G single nucleotide polymorphism of the mu-opioid receptor gene (OPRM1) is associated with pressure pain sensitivity in humans. J Pain (2005) 2.23
A randomized clinical trial of a brief hypnosis intervention to control side effects in breast surgery patients. J Natl Cancer Inst (2007) 2.18
Enhanced temporal summation of second pain and its central modulation in fibromyalgia patients. Pain (2002) 2.11
Temporal summation of pain from mechanical stimulation of muscle tissue in normal controls and subjects with fibromyalgia syndrome. Pain (2003) 1.89
Central representation of visceral and cutaneous hypersensitivity in the irritable bowel syndrome. Pain (2003) 1.87
Individual differences in pain sensitivity: genetic and environmental contributions. Pain (2007) 1.77
Pain measurement and brain activity: will neuroimages replace pain ratings? J Pain (2013) 1.76
Reversal of visceral and cutaneous hyperalgesia by local rectal anesthesia in irritable bowel syndrome (IBS) patients. Pain (2003) 1.74
Cluster analysis of multiple experimental pain modalities. Pain (2005) 1.65
Expansion of the human mu-opioid receptor gene architecture: novel functional variants. Hum Mol Genet (2008) 1.59
Gender role expectations of pain: relationship to experimental pain perception. Pain (2002) 1.56
Spatial summation of mechanically evoked muscle pain and painful aftersensations in normal subjects and fibromyalgia patients. Pain (2007) 1.56
Enhanced central pain processing of fibromyalgia patients is maintained by muscle afferent input: a randomized, double-blind, placebo-controlled study. Pain (2009) 1.55
Placebo-induced analgesia in an operant pain model in rats. Pain (2012) 1.55
Influences of gender role and anxiety on sex differences in temporal summation of pain. J Pain (2004) 1.55
Temporal summation of second pain and its maintenance are useful for characterizing widespread central sensitization of fibromyalgia patients. J Pain (2007) 1.51
Functional brain interactions that serve cognitive-affective processing during pain and placebo analgesia. Neuroimage (2007) 1.48
Morphine responses and experimental pain: sex differences in side effects and cardiovascular responses but not analgesia. J Pain (2005) 1.47
Individual differences in pain sensitivity: measurement, causation, and consequences. J Pain (2009) 1.45
Ratings of experimental pain and pain-related negative affect predict clinical pain in patients with fibromyalgia syndrome. Pain (2003) 1.44
Isometric exercise has opposite effects on central pain mechanisms in fibromyalgia patients compared to normal controls. Pain (2005) 1.40
Do hypnotic analgesic interventions contain placebo effects? Pain (2006) 1.39
Brain activity related to temporal summation of C-fiber evoked pain. Pain (2006) 1.36
Maintenance of windup of second pain requires less frequent stimulation in fibromyalgia patients compared to normal controls. Pain (2004) 1.33
Visual analog scales for assessing surgical pain. J Am Coll Surg (2005) 1.32
Brain activity associated with slow temporal summation of C-fiber evoked pain in fibromyalgia patients and healthy controls. Eur J Pain (2008) 1.32
Visceral and somatic hypersensitivity in a subset of rats following TNBS-induced colitis. Pain (2007) 1.30
Cutaneous C-fiber pain abnormalities of fibromyalgia patients are specifically related to temporal summation. Pain (2008) 1.22
The dynamic mechanisms of placebo induced analgesia: Evidence of sustained and transient regional involvement. Pain (2008) 1.21
Body pain area and pain-related negative affect predict clinical pain intensity in patients with fibromyalgia. J Pain (2004) 1.21
Effects of the N-methyl-D-aspartate receptor antagonist dextromethorphan on temporal summation of pain are similar in fibromyalgia patients and normal control subjects. J Pain (2005) 1.19
Factors contributing to large analgesic effects in placebo mechanism studies conducted between 2002 and 2007. Pain (2009) 1.18
Neurobiology of fibromyalgia syndrome. J Rheumatol Suppl (2005) 1.17
Advanced continuous-contact heat pulse design for efficient temporal summation of second pain (windup). J Pain (2006) 1.13
Sex-related psychological predictors of baseline pain perception and analgesic responses to pentazocine. Biol Psychol (2004) 1.12
Revelation of a personal placebo response: its effects on mood, attitudes and future placebo responding. Pain (2007) 1.10
Intrarectal lidocaine is an effective treatment for abdominal pain associated with diarrhea-predominant irritable bowel syndrome. J Pain (2005) 1.08
Experimental pain models reveal no sex differences in pentazocine analgesia in humans. Anesthesiology (2004) 1.07
Altering gender role expectations: effects on pain tolerance, pain threshold, and pain ratings. J Pain (2003) 1.07
Racial and ethnic differences in older adults with knee osteoarthritis. Arthritis Rheumatol (2014) 1.07
Hypnosis modulates activity in brain structures involved in the regulation of consciousness. J Cogn Neurosci (2002) 1.06
Characterizing individual differences in heat-pain sensitivity. Pain (2005) 1.06
Temporal summation of heat pain in temporomandibular disorder patients. J Orofac Pain (2009) 1.06
Reversal of visceral and somatic hypersensitivity in a subset of hypersensitive rats by intracolonic lidocaine. Pain (2008) 1.05
Visceral and cutaneous hypersensitivity in Persian Gulf war veterans with chronic gastrointestinal symptoms. Pain (2003) 1.05
Gray matter volumes of pain-related brain areas are decreased in fibromyalgia syndrome. J Pain (2010) 1.04
Irritable bowel syndrome as a common precipitant of central sensitization. Curr Rheumatol Rep (2002) 1.04
Thermal and visceral hypersensitivity in irritable bowel syndrome patients with and without fibromyalgia. Clin J Pain (2007) 1.03
Characteristics of electronic visual analogue and numerical scales for ratings of experimental pain in healthy subjects and fibromyalgia patients. Pain (2008) 1.01
Pain variability in fibromyalgia is related to activity and rest: role of peripheral tissue impulse input. J Pain (2010) 0.99
Patient-centered perspective on treatment outcomes in chronic pain. Pain Med (2009) 0.99
Selective up-regulation of NMDA-NR1 receptor expression in myenteric plexus after TNBS induced colitis in rats. Mol Pain (2006) 0.98
Effects of the N-methyl-D-aspartate receptor on temporal summation of second pain (wind-up) in irritable bowel syndrome. J Pain (2010) 0.96
Psychological profiles and pain characteristics of older adults with knee osteoarthritis. Arthritis Care Res (Hoboken) (2013) 0.96
Spinal NMDA NR1 subunit expression following transient TNBS colitis. Brain Res (2009) 0.95
Two novel mutations of SCN9A (Nav1.7) are associated with partial congenital insensitivity to pain. Eur J Pain (2010) 0.95
Mechanical and heat hyperalgesia highly predict clinical pain intensity in patients with chronic musculoskeletal pain syndromes. J Pain (2012) 0.93
The association of greater dispositional optimism with less endogenous pain facilitation is indirectly transmitted through lower levels of pain catastrophizing. J Pain (2012) 0.92
Chronic pain, perceived stress, and cellular aging: an exploratory study. Mol Pain (2012) 0.92
Cognitive-affective and somatic side effects of morphine and pentazocine: side-effect profiles in healthy adults. Pain Med (2009) 0.91
Visceral and somatic hypersensitivity in TNBS-induced colitis in rats. Dig Dis Sci (2007) 0.91
How should we use the visual analogue scale (VAS) in rehabilitation outcomes? II: Visual analogue scales as ratio scales: an alternative to the view of Kersten et al. J Rehabil Med (2012) 0.90
Spatial summation of heat pain within and across dermatomes in fibromyalgia patients and pain-free subjects. Pain (2004) 0.90
Individual differences in morphine and butorphanol analgesia: a laboratory pain study. Pain Med (2011) 0.89
Localized colonic stem cell transplantation enhances tissue regeneration in murine colitis. J Cell Mol Med (2012) 0.88
Phosphorylation of NMDA NR1 subunits in the myenteric plexus during TNBS induced colitis. Neurosci Lett (2006) 0.88
Patients' direct experiences as central elements of placebo analgesia. Philos Trans R Soc Lond B Biol Sci (2011) 0.87
What is controlled for in placebo-controlled trials? Mayo Clin Proc (2005) 0.87
Evidence for sensitized fatigue pathways in patients with chronic fatigue syndrome. Pain (2015) 0.86
Viscerosomatic facilitation in a subset of IBS patients, an effect mediated by N-methyl-D-aspartate receptors. J Pain (2012) 0.85
New evidence for central sensitization in patients with fibromyalgia. Curr Rheumatol Rep (2004) 0.85
Attenuation of experimental pain by vibro-tactile stimulation in patients with chronic local or widespread musculoskeletal pain. Eur J Pain (2011) 0.85
Mechanisms of acupuncture analgesia for clinical and experimental pain. Expert Rev Neurother (2006) 0.84
Placebo manipulations reduce hyperalgesia in neuropathic pain. Pain (2012) 0.84
Drug response profiles to experimental pain are opioid and pain modality specific. J Pain (2010) 0.84
Predictors of clinical pain in fibromyalgia: examining the role of sleep. J Pain (2012) 0.84
Effective connectivity among brain regions associated with slow temporal summation of C-fiber-evoked pain in fibromyalgia patients and healthy controls. J Pain (2012) 0.84
Supra-threshold scaling, temporal summation, and after-sensation: relationships to each other and anxiety/fear. J Pain Res (2010) 0.84
An examination of the relationships among recalled, expected, and actual intensity and unpleasantness of delayed onset muscle pain. J Pain (2003) 0.84
A computational model for sex-specific genetic architecture of complex traits in humans: implications for mapping pain sensitivity. Mol Pain (2008) 0.83
Temporal summation of pain as a prospective predictor of clinical pain severity in adults aged 45 years and older with knee osteoarthritis: ethnic differences. Psychosom Med (2014) 0.83
The effect of propofol on thermal pain perception. Anesth Analg (2005) 0.82
Heightened pain sensitivity in individuals with signs and symptoms of carpal tunnel syndrome and the relationship to clinical outcomes following a manual therapy intervention. Man Ther (2011) 0.81
Functional connectivity of the default mode network and its association with pain networks in irritable bowel patients assessed via lidocaine treatment. J Pain (2013) 0.81
Appraisals of pain from controlled stimuli: relevance to quantitative sensory testing. Br J Health Psychol (2007) 0.81
Is the pain-reducing effect of opioid medication reliable? A psychophysical study of morphine and pentazocine analgesia. Pain (2012) 0.81
Modeling genetic imprinting effects of DNA sequences with multilocus polymorphism data. Algorithms Mol Biol (2009) 0.80