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Fibromyalgia (FM) is a chronic musculoskeletal pain disorder that afflicts up to 4% of the general population. The evaluation of pain mechanisms in FM has shown predominant central abnormalities and therefore has been designated as nociplastic pain syndrome. Rheumatoid arthritis (RA) is characterized by polyarthritis and pain from inflamed tissues, consistent with nociceptive pain. FM and RA patients may utilize overlapping pain mechanisms resulting in nociceptive and nociplastic pain.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Fibromyalgia | Participants who fulfill the 1990 and 2011 American College of Rheumatology Criteria for FM. | ||
| Rheumatoid Arthritis | Participants who fulfill the 2010 American College of Rheumatology (ACR)-European League against rheumatism (EULAR) classification criteria for RA. | ||
| Healthy Volunteers | Participants who do not have significant pain/fatigue/anxiety/depression. |
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| Measure | Description | Time Frame |
|---|---|---|
| Pressure Pain Thresholds | Using an algometer pressure pain thresholds will be obtained several times at the upper and lower extremities | One hour |
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Inclusion Criteria:
Exclusion Criteria:
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This is a case-control study of FM, RA and healthy controls (HC) that will be enrolled in a ratio of 1:1:1. Healthy controls will be aged/gender matched to the FM and RA groups.
| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Roland Staud, M.D. | Contact | 352-294-8200 | staudr@ufl.edu | |
| Melyssa M Godfrey, BS | Contact | 352-265-8901 | melyssa.m.g@ufl.edu |
| Name | Affiliation | Role |
|---|---|---|
| Roland Staud, M.D. | University of Florida | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| University of Florida | Recruiting | Gainesville | Florida | 32610 | United States |
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| ID | Term |
|---|---|
| D005356 | Fibromyalgia |
| D001172 | Arthritis, Rheumatoid |
| ID | Term |
|---|---|
| D009135 | Muscular Diseases |
| D009140 | Musculoskeletal Diseases |
| D012216 | Rheumatic Diseases |
| D009468 | Neuromuscular Diseases |
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| D009422 |
| Nervous System Diseases |
| D001168 | Arthritis |
| D007592 | Joint Diseases |
| D003240 | Connective Tissue Diseases |
| D017437 | Skin and Connective Tissue Diseases |
| D001327 | Autoimmune Diseases |
| D007154 | Immune System Diseases |