PMID- 15694694 OWN - NLM STAT- MEDLINE DCOM- 20050927 LR - 20050207 IS - 0306-9877 (Print) IS - 0306-9877 (Linking) VI - 64 IP - 4 DP - 2005 TI - alpha1-Antitrypsin and fibromyalgia: new data in favour of the inflammatory hypothesis of fibromyalgia. PG - 759-69 AB - alpha1-Antitrypsin (AAT) circulates in high serum concentrations, and impregnates most body tissues. AAT has a broad anti-inflammatory spectrum, and modulates most inflammatory reactions occurring in human body. Recently, a possible relationship between AAT deficiency (AAT-D) and fibromyalgia (FM) has been raised, with the finding that intravenous infusions of purified human AAT efficiently controlled FM symptoms in two patients with severe hereditary AAT-D. On the other hand, functional magnetic resonance imaging has detected a significant greater activity in pain sensitive areas of the brain in patients with FM, in response to cutaneous stimuli, providing further evidence for a physiological explanation for FM pain. In recent studies abnormal profiles of inflammation markers in serum and biopsies have been found in FM patients. Since most of these inflammation mediators can be inhibited by AAT, these observations would suggest that at least a subset of the FM syndrome could be related to an inflammatory process, possibly due to an imbalance between inflammatory and anti-inflammatory substances, in the soft body tissues. Future directions of research would be: (1) to develop epidemiological studies to determine the gene frequency of AAT deficiency alleles in FM patients; (2) implementation of a double-blind placebo-controlled clinical trial to determine the specific role of AAT augmentation therapy in AAT-D patients with FM; (3) identification of specific laboratory markers for diagnostic and clinical evaluation purposes in FM; (4) application of the newest medical imaging techniques for diagnosis; and (5) identification of genetic, familial, and environmental risk factors suspected to participate in the FM syndrome development. FAU - Blanco, Lgnacio Eduardo AU - Blanco LE AD - Department of Internal Medicine, Hospital Valle del Nalon, 33920 Riano-Langreo, Principado de Asturias, Spain. ignacio.blanco@sespa.princast.es FAU - de Serres, Frederick Joseph AU - de Serres FJ FAU - Fernandez-Bustillo, Enrique AU - Fernandez-Bustillo E FAU - Kassam, Daniel Al AU - Kassam DA FAU - Arbesu, Daniel AU - Arbesu D FAU - Rodriguez, Carmen AU - Rodriguez C FAU - Torre, Juan Carlos AU - Torre JC LA - eng PT - Journal Article PL - United States TA - Med Hypotheses JT - Medical hypotheses JID - 7505668 RN - 0 (alpha 1-Antitrypsin) SB - IM MH - Fibromyalgia/drug therapy/epidemiology/*physiopathology MH - Humans MH - alpha 1-Antitrypsin/*physiology/therapeutic use EDAT- 2005/02/08 09:00 MHDA- 2005/09/28 09:00 CRDT- 2005/02/08 09:00 PHST- 2004/07/30 00:00 [received] PHST- 2004/10/15 00:00 [accepted] PHST- 2005/02/08 09:00 [pubmed] PHST- 2005/09/28 09:00 [medline] PHST- 2005/02/08 09:00 [entrez] AID - S0306-9877(04)00566-3 [pii] AID - 10.1016/j.mehy.2004.10.005 [doi] PST - ppublish SO - Med Hypotheses. 2005;64(4):759-69. doi: 10.1016/j.mehy.2004.10.005.