galactitol/edema

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Teaching NeuroImages: Galactitol peak and fatal cerebral edema in classic galactosemia: Too much sugar in the brain.

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Endoneurial oxygen tension and radial topography in nerve edema.

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Endoneurial edema occurs in numerous human and experimental neuropathies. We tested the hypothesis that the resultant increase in intercapillary distance (ICD) may result in endoneurial hypoxia. Experimental galactose neuropathy (EGN) was chosen since in this model, edema is due to the accumulation

In vivo evidence of brain galactitol accumulation in an infant with galactosemia and encephalopathy.

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In a newborn infant with galactose-1-phosphate uridyltransferase deficiency and encephalopathy, brain magnetic resonance imaging revealed cytotoxic edema in white matter. Using in vivo proton magnetic resonance spectroscopy, we detected approximately 8 mmol galactitol per kilogram of brain tissue,

Galactose neuropathy. Permeability studies, mechanism of edema, and mast cell abnormalities.

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Galactose neuropathy is characterized by progressive endoneurial edema manifested by a gradual increase in endoneurial fluid pressure. Edema accumulates via a unique mechanism of osmotic force generated by products of the polyol pathway, synthesized within the endoneurial compartment. This paper

Taurine prevents galactose-induced cataracts.

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Intact lenses from New Zealand white rabbits were incubated in tissue culture media containing either 5 mM glucose or 5 mM glucose plus 30 mM galactose. The standard media did not contain taurine. Lenses were also cultured in a third medium containing 30 mM galactose plus 0.2 mM taurine. The

Axonal caliber and neurofilaments are proportionately decreased in galactose neuropathy.

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Feeding galactose to rats induces nerve conduction abnormalities, increased levels of nerve galactitol, endoneurial edema, elevated pressure and hypoxia of endoneurial fluid, and pathological abnormalities of nerve fibers. To investigate the cellular mechanisms of the fiber lesions and their

Proton magnetic resonance spectroscopy of brain metabolites in galactosemia.

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Brain edema may occur in infants with galactosemia and has been associated with accumulation of galactitol. Proton magnetic resonance spectra were obtained from 12 patients (four newly diagnosed neonates and eight patients on galactose-restricted diets, age range 1.7-47 years) and control subjects

Suckling rat brain regional distribution of Na+,K+-atpase activity in the in vitro galactosaemia: the effect of L-cysteine and glutathione.

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Inhibition of Na+,K+-ATPase activity causes edema and cell death in central nervous system. We determined the in vitro effects of galactose-l-phosphate (Gal-1-P), galactitol (Galtol) and galactose (Gal) (mix A = classical galactosaemia) or Galtol and Gal (mix B = galactokinase deficiency

Evidence of cataplerosis in a patient with neonatal classical galactosemia presenting as citrin deficiency.

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Classical galactosemia is an autosomal recessive disorder caused by a deficiency of the enzyme galactose-1-phosphate uridyltransferase. Undoubtedly, some of the short term complications are linked to the toxic effects of the accumulated abnormal metabolites (galactose-1-phosphate and galactitol).

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