Amyloid beta protein precursor gene and hereditary cerebral hemorrhage with amyloidosis (Dutch)

Topic: Plasma and spinal-fluid biomarkers

Human hereditary cerebral hemorrhage with amyloidosis of the Dutch type (HCHWA-D), an autosomal dominant form of cerebral amyloid angiopathy (CAA), is characterized by extensive amyloid deposition in the small leptomeningeal arteries and cortical arterioles, which lead to an early death of those afflicted in their fifth or sixth decade. Immunohistochemical and biochemical studies have indicated that the amyloid subunit in HCHWA-D is antigenically related to and homologous in sequence with the amyloid beta protein isolated from brains of patients with Alzheimer's disease and Down syndrome. The amyloid beta protein is encoded by the amyloid beta protein precursor (APP) gene located on chromosome 21. Restriction fragment length polymorphisms detected by the APP gene were used to examine whether this gene is a candidate for the genetic defect in HCHWA-D. The data indicate that the APP gene is tightly linked to HCHWA-D and therefore, in contrast to familial Alzheimer's disease, cannot be excluded as the site of mutation in HCHWA-D.

Key findings

• Immunohistochemical and biochemical studies have indicated that the amyloid subunit in HCHWA-D is antigenically related to and homologous in sequence with the amyloid beta protein isolated from brains of patients with Alzheimer's disease and Down syndrome.
• The data indicate that the APP gene is tightly linked to HCHWA-D and therefore, in contrast to familial Alzheimer's disease, cannot be excluded as the site of mutation in HCHWA-D.

Study details

• Evidence strengthLow

Read the original

• DOI: 10.1126/science.1971458
• PubMed: 1971458
• Original source →

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@article{vanbroeckhoven1990-1971458,
  author  = {Van Broeckhoven, C. and Haan, J. and Bakker, E. and Hardy, J. A. and Van Hul, W. and Wehnert, A. and Vegter-Van der Vlis, M. and Roos, R. A.},
  title   = {{Amyloid beta protein precursor gene and hereditary cerebral hemorrhage with amyloidosis (Dutch)}},
  journal = {Science (New York, N.Y.)},
  year    = {1990},
  doi     = {10.1126/science.1971458},
  pmid    = {1971458},
  url     = {https://doi.org/10.1126/science.1971458}
}

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