2004
DOI: 10.1590/s1516-44462004000100013
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Homocisteína e transtornos psiquiátricos

Abstract: The author presents an overview of the current literature on homocysteine as a risk factor for neuropsychiatric disorders. The databases MEDLINE, Current Contents and EMBASE were searched (between 1966 and 2002) for English language publications with the key words 'Homocysteine' and 'Stroke'; 'Alzheimer Disease'; 'Cognitive Impairment'; 'Epilepsy'; 'Depression'; or 'Parkinson's disease'. Individual articles were hand searched for relevant cross-references. It is biologically plausible that high homocysteine le… Show more

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Cited by 32 publications
(9 citation statements)
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References 80 publications
(82 reference statements)
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“…Further, some studies have demonstrated that HHcy might be involved in the pathophysiology of many neuropsychiatric disorders, including brain atrophy, epilepsy, and Alzheimer’s disease 35. Here we report a patient diagnosed with spinal cord demyelination who presented with HHcy and a homozygous mutation of the gene encoding methylenetetrahydrofolate reductase ( MTHFR ) c.677C>T. We suspect a relationship between HHcy and his spinal cord demyelination.…”
Section: Introductionmentioning
confidence: 88%
“…Further, some studies have demonstrated that HHcy might be involved in the pathophysiology of many neuropsychiatric disorders, including brain atrophy, epilepsy, and Alzheimer’s disease 35. Here we report a patient diagnosed with spinal cord demyelination who presented with HHcy and a homozygous mutation of the gene encoding methylenetetrahydrofolate reductase ( MTHFR ) c.677C>T. We suspect a relationship between HHcy and his spinal cord demyelination.…”
Section: Introductionmentioning
confidence: 88%
“…O Estresse Oxidativo (EO) e o acúmulo de radicais livres estão relacionados com os distúrbios neurodegenerativos, uma vez que promovem peroxidação lipídica excessiva, resultando na degeneração neuronal 10 . Adicionalmente, o EO tem sido associado com: a) resistência à insulina (RI) 9,11 , contribuindo para o desenvolvimento da síndrome metabólica e do diabetes mellitus tipo 2, b) lesões no DNA, resultando em mutação gênica 12 , c) pro- cessos inflamatórios 13 , d) disfunção endotelial que precede o desenvolvimento da aterosclerose 10 e e) infertilidades masculina e feminina 14 .…”
unclassified
“…Concentrações elevadas de hcy no cérebro estão associadas com risco aumentado de doença e lesão cerebrovascular e neurotoxicidade 10 . Vários são os mecanismos propostos para explicar essa relação, tais como: prejuízo da vasodilatação endotélio-dependente, inibição da enzima óxido nítrico sintetase, promoção da peroxidação lipí-dica, prejuízo do potencial antioxidativo celular, aumento da agregação plaquetária, inibição dos anticoagulantes naturais, ativação da apoptose neuronal e EO aumentado 10 .…”
unclassified
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