Papers by Carlos Martinez
Annals of Neurology, 1994
Manganese intoxication and chronic liver failure are associated with strikingly similar clinical,... more Manganese intoxication and chronic liver failure are associated with strikingly similar clinical, imaging, and pathological abnormalities. As manganese is primarily cleared by the liver, inadequate elimination of manganese absorbed from the normal diet may lead to manganese overload in patients with liver disease. We report a significant elevation of blood manganese concentration in 3 patients with biopsy-proved hepatic cirrhosis who exhibited neurological dysfunction and characterstic abnormal signal hyperintensity in the globi pallidi and substantia nigra on T1-weighted magnetic resonance imaging. We speculate that manganese accumulation in the brain accounts for the magnetic resonance imaging abnormalities and contributes to neurological dysfunction in patients with liver disease.
Journal of Experimental Medicine, 1962
Although the thymus gland has been known from antiquity, its role in the body economy has remaine... more Although the thymus gland has been known from antiquity, its role in the body economy has remained enigmatic until recently. During the past year, however, a flurry of reports have given the first indications of the role of this organ in developmental biology. In mammals the thymus develops from the third and fourth pharyngeal pouches in early embryonic life, reaches maximal relative size near the time of birth, and then undergoes a gradual involution. In man the thymus appears in the 10 mm embryo, reaches maximal relative size in the neonate, attains maximal absolute size in the 12-year-old child, and then ..... gradually decreases in relative and absolute size as maturity is reached (1).
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Papers by Carlos Martinez