Enhanced ROS-generation in lymphocytes from Alzheimer’s patients
- Introduction: Reactive oxygen species (ROS) have been implicated in neurodegeneration and seem to be involved in the physiology and pathophysiology of several diseases, including normal aging and Alzheimer’s disease (AD). Enhanced ROS production in aging or AD is not restricted to the brain, but can also been seen in several peripheral tissues. The objective of the present study was to evaluate whether the mechanisms involved in the generation of oxidative stress in normal senescence and Alzheimer’s disease are identical or not. Methods: We analysed intracellular basal levels of ROS in lymphocytes from AD patients and healthy young and aged not-demented subjects as well as ROS levels following stimulation with d-ribose and staurosporine in all three groups. ROS levels were measured by flow cytometry using the intracellular fluorescence dye dihydrorhodamine123 (DHR123). Results: Our study shows that AD lymphocytes have increased basal levels of ROS, low susceptibility to ROS stimulation by 2-deoxy-D-ribose (dRib) and an increased response to staurosporine when compared with age-matched controls. Discussion: The data suggest that the defect(s) responsible for enhanced ROS production in AD may involve different or additional biological pathways than those involved in enhanced ROS generation during aging.
Verfasserangaben: | Silke LeutnerGND, Katharina SchindowskiORCiDGND, Lutz FrölichORCiDGND, Konrad MaurerGND, Tilmann Kratzsch, Anne EckertORCiDGND, Walter E. MüllerGND |
---|---|
URN: | urn:nbn:de:hebis:30-34508 |
DOI: | https://doi.org/10.1055/s-2005-916186 |
Titel des übergeordneten Werkes (Deutsch): | Pharmacopsychiatry |
Dokumentart: | Wissenschaftlicher Artikel |
Sprache: | Englisch |
Jahr der Fertigstellung: | 2005 |
Jahr der Erstveröffentlichung: | 2005 |
Veröffentlichende Institution: | Universitätsbibliothek Johann Christian Senckenberg |
Datum der Freischaltung: | 29.11.2006 |
Jahrgang: | 38 |
Seitenzahl: | 4 |
Erste Seite: | 312 |
Letzte Seite: | 315 |
Quelle: | In: Pharmacopsychiatry (2005), 38:312-315 ; 10.1055/s-2005-916186 ; http://www.thieme-connect.com/ejournals/abstract/pharmaco/doi/10.1055/s-2005-916186 |
HeBIS-PPN: | 188868461 |
Institute: | Biochemie, Chemie und Pharmazie / Pharmazie |
DDC-Klassifikation: | 5 Naturwissenschaften und Mathematik / 57 Biowissenschaften; Biologie / 570 Biowissenschaften; Biologie |
Sammlungen: | Sammlung Biologie / Sondersammelgebiets-Volltexte |
Lizenz (Deutsch): | Deutsches Urheberrecht |