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  • Title: Neurotoxic effect of linamarin in rats associated with cassava (Manihot esculenta Crantz) consumption.
    Author: Rivadeneyra-Domínguez E, Vázquez-Luna A, Rodríguez-Landa JF, Díaz-Sobac R.
    Journal: Food Chem Toxicol; 2013 Sep; 59():230-5. PubMed ID: 23778051.
    Abstract:
    Cassava (Manihot esculenta Crantz) is a plant widely used for food consumption in different processed products in rural areas of Africa, Asia, and Latin America. Cassava is a good source of carbohydrates and micronutrients. However, if it is not adequately processed or the consumer has nutritional deficiencies, then its cyanogenic glycoside (i.e., linamarin and lotaustralin) content makes it potentially neurotoxic. In the present study, the neurotoxic effects of different concentrations of linamarin (0.075, 0.15, 0.22, and 0.30 mg/kg) contained in cassava juice were evaluated in the open field and swim tests to identify locomotor alterations in adult male Wistar rats. The linamarin concentration in cassava juice was determined by high-performance liquid chromatography, and the juice was administered intraesophageally for 28 days. The results suggested that the consumption of linamarin in cassava juice increased the number of crossings and rearings in the open field test and caused behavioral deficiency, reflected by lateral swimming, in the swim test on days 21 and 28 of treatment. These alterations are possibly related to neuronal damage caused by linamarin in cassava juice in structures of the central nervous system involved in motor processing.
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