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Plasma membrane fragility in dystrophic neurites in senile plaques of Alzheimer's disease: an index of oxidative stressPraprotnik, Darja, zdravnica, 1964- ...This study presents evidence for plasma membrane abnormalities of the dystrophic neurites in senile plaques of Alzheimerćs disease. We found that the plasma membranes of dystrophic neurites are more ... labile to fixation than those membranes of other cells of the senile plaque or of normal neurites distant from senile plaques. Further, we found vesicles in the extracellular space adjacent to dystrophic neurites and similar to those within them, suggesting that the iucreased lability seen in our preparations may. in vivo. be associated with release of neuritic contents. Plasma membrane alterations may be critical to deposition of acnyloid-beta in senile plaques from the abundant beta-protein precursor of dystrophic neurites. The consequences of altered membrane integrity, such as calcium influx, lipid peroxidation and free radical damage, could also be responsible for many of the pathological correlates of the disease.Vir: Acta Neuropathologica. - ISSN 0001-6322 (Letn. 91, št. 1, 1996, str. 1-5)Vrsta gradiva - članek, sestavni delLeto - 1996Jezik - angleškiCOBISS.SI-ID - 13023961
Avtor
Praprotnik, Darja, zdravnica, 1964- |
Smith, M... A. |
Richey, P... L. |
Vinters, H... V. |
Perry, G...
Teme
Alzheimer's disease |
Pathology |
Metabolism |
Neurites |
Metabolism |
Pathology |
Ultrastructure |
Neurofibrillary tangles |
Pathology |
Metabolism |
Ultrastructure |
Oxidative stress |
Middle age |
Cell membrane |
Pathology |
Metabolism |
Ultrastructure
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Praprotnik, Darja, zdravnica, 1964- | 10629 |
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