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  • Title: [Pathology of neurodegenerative diseases: with special reference to Parkinson's disease and amyotrophic lateral sclerosis].
    Author: Takahashi H.
    Journal: Rinsho Shinkeigaku; 2002 Nov; 42(11):1085-7. PubMed ID: 12784672.
    Abstract:
    The causes of Parkinson's disease (PD) and amyotrophic lateral sclerosis (ALS) are still unknown. Aging, environmental factors and genetic factors may be involved in the development of these illnesses, especially the sporadic phenotypes. The details of PD pathology have made remarkable advances in the last 5 years, after the discovery of mutation of the alpha-synuclein gene in families with PD: all of the Lewy bodies (Lewy filaments) in familial and sporadic PD contain the gene product alpha-synuclein. Further studies are necessary to elucidate the mechanisms underlying the development of PD, and to determine the therapeutic targets through which it may be possible to prevent the disease. With regard to the pathology of ALS, it is of great importance that in this disease, characteristic neuronal cytoplasmic inclusions (i.e., Bunina bodies and ubiquitinated inclusions) have been described in the lower motor neurons. At present, however, compared with the Lewy bodies in PD, much less is known about the profiles of the inclusions associated with ALS. Early identifications of the proteins that constitute these inclusions would be desirable if we are to elucidate the molecular pathology, and thus the mechanisms underlying ALS.
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