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  • Fibroblasts  (1)
  • neurodegenerative disease.  (1)
  • pyruvate dehydrogenase  (1)
  • 1
    ISSN: 1574-4647
    Keywords: Fibroblasts ; Alzheimer’s disease
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Cultured fibroblasts are a valuable tool to study many cellular processes and their modification by aging. Fibroblasts are a useful cell type in which to study many diseases, including those of the nervous system, in which a strong genetic component is suspected. Fibroblasts permit the study of multiple, dynamic processes in living cells, while avoiding the effect of the dying process and post-mortem artifacts that limit other approaches. For results to be comparable across time in one laboratory or consistent between laboratories, the detailed culture techniques require meticulous care and replicability. Lack of attention to detail in initial stages can lead to selection of different cell populations. Small variations in othe variables such as batches of serum can significantly alter growth rates and comparisons of cells from controls and Alzheimer patients. The aim of this paper is to present a detailed protocol for comparison of multiple cell lines from many patients. An example of using this approach to study growth and phase out (i.e., senescence) of cells from Alzheimer patients is presented. This procedure represents a modification of an earlier protocol (Cristofalo and Charpentier, 1980).
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Journal of neural transmission 105 (1998), S. 855-870 
    ISSN: 1435-1463
    Keywords: Keywords: Alzheimer's disease ; mitochondria ; α-ketoglutarate dehydrogenase ; cytochrome oxidase ; pyruvate dehydrogenase ; neurodegenerative disease.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary. Abundant evidence, including critical information gathered by Prof. Siegfried Hoyer and his colleagues, indicates that abnormalities of cerebral metabolism are common in neurodegenerative diseases, including Alzheimer's Disease (AD). Alterations in mitochondrial enzymes likely underlie these deficits. Replicable reductions in AD brain occur in the pyruvate dehydrogenase complex (the link of glycolysis to the Kreb's cycle), the α-ketoglutarate dehydrogenase complex (KGDHC; the link of Kreb's cycle to glutamate metabolism) and cytochrome oxidase (the link of the Kreb's cycle to oxygen utilization). Available evidence suggests that deficiencies in KGDHC may be genetic in some cases, whereas evidence that the other two enzyme systems have a genetic component is lacking. Additional results indicate that the reductions can also be secondary to other causes including oxidative stress. A variety of data suggest that the mitochondrial insufficiencies contribute significantly to the pathophysiology of AD.
    Type of Medium: Electronic Resource
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