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1.
Neurología (Barc., Ed. impr.) ; 29(9): 517-522, nov.-dic. 2014. tab
Article in Spanish | IBECS | ID: ibc-130370

ABSTRACT

Introducción: Las cícadas son plantas que en algunas partes del mundo son empleadas como alimento fresco o materia prima para la elaboración de harina con alto valor nutricional. Sin embargo, contienen principios activos como metilazoximetanol, β-metilamino-L-alanina, β-oxalilamino-L-alanina y cicasina, entre otros, que pueden producir efectos neurotóxicos. El consumo de cícadas y sus derivados se ha asociado con enfermedades neurodegenerativas, como el complejo demencia-parkinsonismo-esclerosis-lateral amiotrófica y otras enfermedades caracterizadas por alteraciones en la motricidad. Por lo tanto, no debemos perder de vista que todo producto, aunque sea de origen natural, puede ser benéfico o perjudicial para la salud, lo cual dependerá de sus componentes químicos y de la vulnerabilidad de quienes los consumen. Desarrollo: Se realizó un análisis de la literatura sobre las propiedades neurotóxicas de las cícadas y su asociación con enfermedades neurológicas, con el fin de proporcionar información estructurada a la población para contribuir a la prevención de problemas de salud en quienes interactúan con estas plantas. Conclusión: Las cícadas contienen neurotóxicos que contribuyen al desarrollo de enfermedades neurológicas cuando son ingeridas inadecuadamente, por lo que debemos considerar que si bien algunos vegetales pueden tener un alto valor nutricional y subsanar el déficit alimentario en las poblaciones vulnerables, también pueden ser tóxicos e impactar negativamente sobre la salud


Introduction: Cycads are ornamental plants that in some parts of the world are used as fresh food or raw material for producing flour with a high nutritional value. However, they also contain active compounds, including methylazoxymethanol, β-methylamino-L-alanine, β-alanine-L-oxalylamino and cycasin, which may produce neurotoxic effects. Some studies have associated consuming cycads and their derivatives with neurodegenerative diseases such as amyotrophic lateral sclerosis/Parkinsonism dementia complex, and other diseases characterised by motor impairment. Therefore, we must not forget that any product, no matter how natural, may present health risks or benefits depending on the chemical compounds it contains and the susceptibility of those who consume it. Development: We completed a literature analysis to evaluate the neurotoxic properties of cycads and their association with neurological diseases in order to provide structured scientific information that may contribute to preventing health problems in people who use these plants. Conclusion: Cycads contain neurotoxic compounds that may contribute to the development of neurological diseases when ingested improperly. We must be mindful of the fact that while some plants have a high nutritional value and may fill the food gap for vulnerable populations, they can also be toxic and have a negative impact on health


Subject(s)
Humans , Cycas/adverse effects , Plant Extracts/adverse effects , Neurodegenerative Diseases/chemically induced , Neurotoxins/analysis , Methylazoxymethanol Acetate/analysis
2.
Zhongguo Zhong Yao Za Zhi ; 32(18): 1900-2, 2007 Sep.
Article in Chinese | MEDLINE | ID: mdl-18051902

ABSTRACT

OBJECTIVE: To develop a RP-HPLC method for the determination of the content of macrozamin in Rhizoma Heterosmilacis Japonicae. METHOD: A Century C18 AQ column (4.6 mm x 250 mm, 5 microm) was used with the mobile phase consisted of water (4:96). The flow rate was 1.0 mL x min(-1). The detection wavelength was set at 215 nm, and the column temperature was 35 degrees C. RESULT: The calibration curve was linear (r = 0.999 8) in the range of 19.12 - 382.4 microg x mL(-1) for macrozamin, the average recovery of the method was 99.5%, with RSD 2.1% (n = 9). CONCLUSION: This method can be used for the quality study of Rhizoma Heterosmilacis Japonicae.


Subject(s)
Chromatography, High Pressure Liquid/methods , Liliaceae/chemistry , Methylazoxymethanol Acetate/analogs & derivatives , Rhizome/chemistry , Methylazoxymethanol Acetate/analysis , Plants, Medicinal/chemistry , Reproducibility of Results
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