title: Hair calcium and magnesium levels in patients with fibromyalgia: a case center study.
abstract: BACKGROUND
  Fibromyalgia is not an uncommon condition. Because its cause has yet to be identified. treatment of the condition has been empirical; frequently, outcomes are unsatisfactory. Some patients with fibromyalgia were observed to have high hair calcium and magnesium levels compared with healthy subjects. Because of this and because supplementing calcium with magnesium to fibromyalgia subjects reduced the number of tender points detected by digital palpation, it is worth investigating if patients with fibromyalgia have significantly higher hair calcium and magnesium levels than their healthy counterparts.
  
  
  OBJECTIVE
  To determine the degree of difference between the hair calcium and magnesium levels in patients with fibromyalgia and in healthy subjects.
  
  
  METHODS
  The study was retrospective and of paired design. Twelve patients who had hair analysis performed and met the criteria of fibromyalgia defined by American College of Rheumatology (1990) were selected consecutively from clinical files. These patients were then matched by age and sex to 12 healthy subjects selected consecutively from the same patient files who had hair analysis performed for checkup purposes. Nonparametric Wilcoxon rank sum tests were used to determine if the hair calcium and magnesium levels in patients with fibromyalgia were significantly higher than that of the control subjects.
  
  
  RESULTS
  Wilcoxon rank sum tests showed that patients with fibromyalgia had significantly higher calcium and magnesium levels than the control subjects at alpha = .025 and .05, respectively.
  
  
  CONCLUSIONS
  In the presence of high hair calcium and magnesium levels, calcium and magnesium supplements may be indicated as an adjunctive treatment of fibromyalgia.
authors.forename: S Y
authors.initials: SY
authors.lastname: Ng
mesh_terms: D000328:Adult; D002118:Calcium / Q000032:analysis*; D002684:Chiropractic / Q000379:methods; D005260:Female; D005356:Fibromyalgia / Q000175:diagnosis / Q000378:metabolism*; D006197:Hair / Q000737:chemistry*; D006801:Humans; D008274:Magnesium / Q000032:analysis*; D008297:Male; D008875:Middle Aged; D059408:Pain Management; D012189:Retrospective Studies
chemical_list: D008274:Magnesium; D002118:Calcium