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Spirulina did not ameliorate idiopathic chronic fatigue in four N-of-1 randomized controlled trials.

Domenii publicaţii > Ştiinţe medicale + Tipuri publicaţii > Articol în revistã ştiinţificã

Autori: C Baicus, A Baicus

Editorial: Phytother Res., 21(6), p.570-3, 2007.

Rezumat:

Idiopathic chronic fatigue is an exclusion diagnosis established when no chronic disease is found. Spirulina platensis is an alga with a rich content of proteins, vitamins, minerals and amino acids and is considered as a bioactive additive with multiple effects, among them being effects against fatigue. However, despite the worldwide utilization of Spirulina, there are only a few quality studies with it and none concerning fatigue. The N-of-1 randomized trials are made on one patient, and by this kind of study the efficacy of a treatment on that particular patient can be assessed. A series of four N-of-1 double-blind, randomized trials were performed on four physicians who complained of chronic fatigue. Each patient was his own control and received three pairs of treatments comprising 4 weeks of spirulina and 4 weeks of placebo. Spirulina platensis was administered in a dose of 3 g/day. For each pair, the order of treatments was randomized. Outcome measures were severity of fatigue measured on a 10-point scale.The scores of fatigue were not significantly different between spirulina and placebo.Spirulina administered in a dose of 3 g/day did not ameliorate fatigue more than the placebo in any of the four subjects, and possibly it has no effect on chronic fatigue.

Cuvinte cheie: spirulina, N-of-1 trial, single-case research, randomization, double-blind

URL: http://www3.interscience.wiley.com/cgi-bin/abstract/114171313/ABSTRACT