α-1 antitrypsin and chronic fatigue syndrome: a case study from pathophysiology to clinical practice.

SUMMARY

BACKGROUND

Several lines of evidence support the involvement of inflammatory and immunologic abnormalities in chronic fatigue syndrome (CFS). Since recent studies have shown that α-1 antitrypsin (AAT) possesses anti-inflammatory properties, the potential therapeutic effect of AAT treatment on CFS has been investigated.

METHODS

A 49-year-old woman diagnosed with CFS was treated with intravenous infusions of a human plasma-derived AAT concentrate (60 mg/kg body weight weekly for 8 consecutive weeks). The patient's monocyte elastase, a regulator of inflammatory processes, was 1170 U/mg. At completion of treatment, improvement in maximal workload was observed (54.0-71.7% of predicted). Additionally, amelioration in working memory (scores: 83-94) and perceptual organization (scores: 75-83) were detected on the Wechsler Adult Intelligence Scale-III test. Monocyte elastase decreased to a normal range (<150 U/mg). Improvement in functional capacity allowed the patient to work in part-time employment.

CONCLUSIONS

These findings suggest a possible role for AAT in the treatment of CFS.