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PMID: 8869917: Med Hypotheses 1996 Aug;47(2):73-5 Alzheimer's disease, Kuf's disease, tellurium and selenium. Larner AJ The possible role of the abnormal trace element tellurium in the pathogenesis of Alzheimer's disease is examined. Tellurium has been reported to produce cognitive impairment and cerebral lipofuscinosis in rats-changes akin to those seen in Kuf's disease, a condition which shares certain clinical and neuropathological features with Alzheimer's disease. Tellurium can damage mitochondria; defects in mitochondrial energy metabolism may be relevant to the pathogenesis of neurodegenerative disease. The deficiency of selenium, which may act physiologically as an antagonist of tellurium, in the Alzheimer's disease brain would also be in keeping with the hypothesis of tellurium toxicity as a factor in the pathogenesis of Alzheimer's disease.