Abstract
Alzheimer's disease (AD) is a neurodegenerative disease and the most common form of dementia in the elderly. In recent years, markers of this disease have been researched, with an emphasis on prophylaxis. The aim of this study is to evaluate the concentration of fibronectin and MMP-1 in serums in relation to levels of antioxidant elements, as well as eating habits in the group of patients with AD (n = 110). The control group consisted of 60 healthy people. The conducted studies showed that patients with AD are characterized by a significantly higher median concentration of fibronectin compared to healthy subjects (652.06 vs. 268.31 µg/mL), but a significantly lower median of MMP-1 (4.62 vs. 18.09 ng/mL). Significant inverse correlations between MMP-1 and the concentration of antioxidant elements, as well as positive correlations between MMP-1 vs. Total Antioxidant Status (TAS) and MMSE, were observed. Multiple regressions showed that the concentration of fibronectin can be explained in 28% cases by eating habits, and by MMP-1 in 25%. Nutritional modifications to reduce the consumption of fruit, meat and processed products can be part of AD prevention.