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Familial occurrence of primary fibromyalgia
M J Pellegrino1, G W Waylonis, A Sommer
1Department of Physical Medicine, Ohio State University, Columbus.
Archives of Physical Medicine and Rehabilitation
|January 1, 1989
Summary
Primary fibromyalgia may be inherited, with over half of relatives showing symptoms. The condition appears to follow an autosomal dominant inheritance pattern with a variable latent stage.
Area of Science:
- Rheumatology
- Medical Genetics
Background:
- Primary fibromyalgia is a chronic pain disorder with unclear etiology.
- Investigating familial aggregation can reveal genetic contributions to complex diseases.
Observation:
- Seventeen families with primary fibromyalgia were analyzed, including 50 relatives.
- Over half of the relatives (52%) exhibited characteristic fibromyalgia symptoms.
- A significant portion (22%) had abnormal muscle consistency without typical tender points, suggesting subclinical disease.
Findings:
- The study identified an autosomal dominant inheritance pattern for primary fibromyalgia.
- Identical twins and affected siblings demonstrated variable onset and expression of symptoms.
- A latent stage before clinical manifestation of fibromyalgia was suggested.
Implications:
- These findings support a strong genetic basis for primary fibromyalgia.
- Understanding the genetic component can aid in early diagnosis and targeted therapies.
- Further research into the genetic mechanisms and variable penetrance is warranted.