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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Effect of ascorbate or N-acetylcysteine treatment in a patient with hereditary glutathione synthetase deficiency.

A 45-month-old girl with 5-oxoprolinuria (pyroglutamic aciduria), hemolysis, and marked glutathione depletion caused by deficiency of glutathione synthetase was followed before and during treatment with ascorbate or N-acetylcysteine. High doses of ascorbate (0.7 mmol/kg per day) or N-acetylcysteine (6 mmol/kg per day) were given for 1 to 2 weeks without any obvious deleterious side effects. Ascorbate markedly increased lymphocyte (4-fold) and plasma (8-fold) levels of glutathione. N-Acetylcysteine also increased lymphocyte (3.5-fold) and plasma (6-fold) levels of glutathione. After these treatments were discontinued, lymphocyte and plasma glutathione levels decreased rapidly to pretreatment levels. Ascorbate treatment was extended for 1 year, and lymphocyte (4-fold) and plasma (2- to 5-fold) glutathione levels remained elevated above baseline. In parallel, the hematocrit increased from 25.4% to 32.6%, and the reticulocyte count decreased from 11% to 4%. The results demonstrate that ascorbate and N-acetylcysteine can decrease erythrocyte turnover in patients with hereditary glutathione deficiency by increasing glutathione levels.[1]

References

  1. Effect of ascorbate or N-acetylcysteine treatment in a patient with hereditary glutathione synthetase deficiency. Jain, A., Buist, N.R., Kennaway, N.G., Powell, B.R., Auld, P.A., Mårtensson, J. J. Pediatr. (1994) [Pubmed]
 
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