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- Title
Interleukin-18 and transforming growth factor-beta 1 plasma levels in Alzheimer’s disease and vascular dementia.
- Authors
Malaguarnera, Lucia; Motta, Massimo; Di Rosa, Michelino; Anzaldi, Massimiliano; Malaguarnera, Mariano
- Abstract
Inflammation has been involved in the development of dementia in cerebrovascular diseases. To investigate the cellular activation of the peripheral immune system in patients with Alzheimer’s disease (AD) and vascular dementia (VaD), we determined the presence of IL-18 and TGF-β1 in the plasma by using ELISA. The levels of IL-18 and TGF-β1 were significantly elevated in patients with AD and VaD compared to non-demented, age-matched subjects. We found an inverse correlation between the levels of IL-18 and TGF-β1 in AD patients. In VaD patients, the correlation between IL-18 and TGF-β1 reached a borderline positive value. Whereas, in the non-demented, age-matched subjects, a positive correlation between IL-18 and TGF-β1 levels was observed. These findings indicate that IL-18 and TGF-β1 elevation is associated with AD and VaD patients, confirming that the immune system might exert a remarkable role in the development and progression of neurodegenerative disorders. Moreover, as different modifications were detected in the patients affected by AD and VaD, we propose that IL-18 and TGF- β1 plasma levels might represent possible differential biomarkers.
- Subjects
INTERLEUKINS; GROWTH factors; ALZHEIMER'S disease; VASCULAR dementia; INFLAMMATION; CEREBROVASCULAR disease
- Publication
Neuropathology, 2006, Vol 26, Issue 4, p307
- ISSN
0919-6544
- Publication type
Article
- DOI
10.1111/j.1440-1789.2006.00701.x