Carlo Irace, Gian Marco Casillo, Alessandro Sgherbini, Maria Daglia, Cristina Santarcangelo, Nadia Pedretti, Alessia Pernice, Anella Saviano, Miriam Ciccone, Francesco Maione, Marialuisa Piccolo, Daniele Bonvicini, Federica Raucci, Maria Grazia Ferraro, Nicola Mascolo, Saviano, A., Casillo, G. M., Raucci, F., Pernice, A., Santarcangelo, C., Piccolo, M., Ferraro, M. G., Ciccone, M., Sgherbini, A., Pedretti, N., Bonvicini, D., Irace, C., Daglia, M., Mascolo, N., and Maione, F.
Alzheimer’s disease (AD) is the most common type of dementia worldwide, characterized by the deposition of neurofibrillary tangles and amyloid-β (Aβ) peptides in the brain. Additionally, increasing evidence demonstrates that a neuroinflammatory state and oxidative stress, iron-dependent, play a crucial role in the onset and disease progression. Besides conventional therapies, the use of natural-based products represents a future medical option for AD treatment and/or prevention. We, therefore, evaluated the effects of a ribonucleotides-based ingredient (Ribodiet®) in a non-genetic mouse model of AD. To this aim, mice were injected intracerebroventricularly (i.c.v.) with Aβ1–42 peptide (3 µg/3 μl) and after with Ribodiet® (0.1–10 mg/mouse) orally (p.o.) 3 times weekly for 21 days following the induction of experimental AD. The mnemonic and cognitive decline was then evaluated, and, successively, we have assessed ex vivo the modulation of different cyto-chemokines on mice brain homogenates. Finally, the level of GFAP, S100β, and iron-related metabolic proteins were monitored as markers of reactive gliosis, neuro-inflammation, and oxidative stress. Results indicate that Ribodiet® lessens oxidative stress, brain inflammation, and amyloid pathology via modulation of iron-related metabolic proteins paving the way for its rationale use for the treatment of AD and other age-related diseases.