Liver Disease: Brain Manganese Accumulation
•Primary Biliary Cirrhosis is a not uncommon cause of chronic liver disease especially in women
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•Presents with fatigue and skin itching without jaundice
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•Tests reveal raised alkaline phosphatase
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•Studied 18 PBC patients 14 with early pre-cirrhotic 
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•Blood manganese elevated - reduced ability to excrete excess
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•Accumulation of mineral in the brain (reduced magnetisation transfer ratio in the globus pallidus) similar to industrial manganese excess, which causes Parkinsonism
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•Similar changes may occur in infants with biliary atresia
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•Manganese accumulation can easily occur in those with cholestasis or raised alkaline phosphatase level
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•Reference: Fotron DM et al. Gut 2004;53:587-592.
Fatigue and primary biliary cirrhosis: association of globus pallidus magnestisation transfer ratio measurements with fatigue severity and blood manganese levels.