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Medical Science Monitor Basic Research


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Two-year follow-up of Sanfilippo Disease patients treated with a genistein-rich isoflavone extract: Assessment of effects on cognitive functions and general status of patients

Ewa Piotrowska, Joanna Jakobkiewicz-Banecka, Agnieszka Maryniak, Anna Tylki-Szymanska, Ewa Puk, Anna Liberek, Alicja Wegrzyn, Barbara Czartoryska, Monika Slominska-Wojewodzka, Grzegorz Wegrzyn

Med Sci Monit 2011; 17(4): CR196-202

DOI: 10.12659/MSM.881715

Background:    Mucopolysaccharidoses (MPS) are inherited metabolic disorders caused by deficiencies in enzymes involved in degradation of glycosaminoglycans. MPS type III (Sanfilippo disease) is clinically characterized mainly by progressive and severe behavioral disturbances and cognitive dysfunction. Recent 1-year experimental treatment of 10 patients with a genistein (4’, 5, 7-trihydroxyisoflavone)-rich extract resulted in improvement of tested parameters, including cognitive and behavioral functions.
    Material/Methods:    Eight pediatric patients with Sanfilippo disease were enrolled into the study. The modified version of the Brief Assessment Examination was used to assess cognitive functions. Moreover, 18 different parameters concerning changes in conditions of patients were assessed by their parents.
    Results:    During the first year of the treatment, an improvement of cognitive functions in 7 patients and stabilization in 1 patient were assessed, while after the third year (2-year follow-up) further improvement was observed in 2 patients, stabilization in 3 patients and some deterioration in 3 patients. Monitoring of general and behavioral symptoms revealed improvement in all patients after the first year of the treatment, further improvement in 5 patients, and deterioration in 3 patients during the next 2 years.
    Conclusions:    We conclude that the treatment of Sanfilippo patients with a genistein-rich soy isoflavone extract (called gene expression-targeted isoflavone therapy [GET IT]) may be effective in either inhibition (in some patients) or slowing down (in other patients) of behavioral and cognitive problems over a longer period. An increased dose of genistein may improve the efficacy of the treatment.

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