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1.
Nutrients ; 10(9)2018 Sep 08.
Article in English | MEDLINE | ID: mdl-30205543

ABSTRACT

Despite intensive study, neurodegenerative diseases remain insufficiently understood, precluding rational design of therapeutic interventions that can reverse or even arrest the progressive loss of neurological function. In the last decade, several theories investigating the causes of neurodegenerative diseases have been formulated and a condition or risk factor that can contribute is described by the gut-brain axis hypothesis: stress, unbalanced diet, and drugs impact altering microbiota composition which contributes to dysbiosis. An altered gut microbiota may lead to a dysbiotic condition and to a subsequent increase in intestinal permeability, causing the so-called leaky-gut syndrome. Herein, in this review we report recent findings in clinical trials on the risk factor of the gut-brain axis in Alzheimer's disease and on the effect of omega-3 supplementation, in shifting gut microbiota balance towards an eubiosis status. Despite this promising effect, evidences reported in selected randomized clinical trials on the effect of omega-3 fatty acid on cognitive decline in Alzheimer's disease are few. Only Mild Cognitive Impairment, a prodromal state that could precede the progress to Alzheimer's disease could be affected by omega-3 FA supplementation. We report some of the critical issues which emerged from these studies. Randomized controlled trials in well-selected AD patients considering the critical points underlined in this review are warranted.


Subject(s)
Alzheimer Disease/diet therapy , Brain/physiopathology , Cognition , Dietary Supplements , Fatty Acids, Omega-3/administration & dosage , Gastrointestinal Microbiome , Gastrointestinal Tract/microbiology , Alzheimer Disease/microbiology , Alzheimer Disease/physiopathology , Alzheimer Disease/psychology , Animals , Clinical Trials as Topic , Dysbiosis , Host-Pathogen Interactions , Humans , Protective Factors , Risk Factors
2.
Diseases ; 6(2)2018 Apr 24.
Article in English | MEDLINE | ID: mdl-29695061

ABSTRACT

In this study, the use of fibrin rich in leukocytes and platelets (L-PRF) was explored to heal osteomyelitis ulcers in a diabetic foot. The goal was to standardize the utilization of L-PRF in patients with osteomyelitis to direct it for healing. L-PRF was obtained autologously from the peripheral blood of the diabetic patients (n = 3) having osteomyelitis and skin lesions for at least six months. The L-PRF and supernatant serum were inserted into the skin lesion to the bone after a surgical debridement. The evolution of lesions over time was analyzed. All three patients showed positivity to the Probe-to-Bone test and Nuclear Magnetic Resonance detected cortico-periosteal thickening and/or outbreaks of spongy cortical osteolysis in adjacency of the ulcer. The infections were caused by Cocci Gram-positive bacteria, such as S. Aureus, S. β-hemolytic, S. Viridans and Bacilli; and Gram-negative such as Pseudomonas, Proteus, Enterobacter; and yeast, Candida. The blood count did not show any significant alterations. To date, all three patients have healed skin lesions (in a patient for about two years) with no evidence of infection. These preliminary results showed that L-PRF membranes could be a new method of therapy in such problematic diseases. Overall, the L-PRF treatment in osteomyelitis of a diabetic foot seems to be easy and cost-effective by regenerative therapy of chronic skin lesions. In addition, it will improve our understanding of wound healing.

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