Abstract Title:

Pilot study of threonine supplementation in human spasticity.

Abstract Source:

J Nutr Sci Vitaminol (Tokyo). 2010;56(2):145-9. PMID: 6809303

Abstract Author(s):

A Barbeau, M Roy, C Chouza

Abstract:

Full Citation: "Threonine supplementation (500 mg/day) was given to 6 patients with genetic spasticity syndromes for a period of 12 months, followed by a 4-month observation period without medication. All 6 patients showed partial improvement of spasticity, intensity of knee jerks and muscle spasms without changes in true pyramidal tract signs. The improvement in motor performance, objectively measured, averaged 29% (19% in upper limbs and 42% in lower limbs). The range of overall improvement was 19--35% (7--30% for upper limbs; 25--67% for lower limbs). No toxic clinical or biochemical side effects were encountered. Thus threonine, a precursor of glycine, produced the same effect on spasticity than that previously observed with glycine. It is concluded that threonine supplementation is feasible and safe and that it deserves a controlled trial in well defined (preferably genetic) cases of spasticity."

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