The aim of the present study was to evaluate the contribution of peroxisome proliferator-activated receptor (PPAR-β/δ) in animal model of periodontitis. Male Sprague-Dawley rats were lightly anaesthetized with pentobarbitone (35 mg/kg). Sterile, 2-0 black braided silk thread was placed around the cervix of the lower left first molar and knotted medially. Animals received GW0742 (0.3 mg/kg, 10% DMSO, i.p. after the ligature placement and daily for eight days). At day 8, the gingivomucosal tissue encircling the mandibular first molar was removed. One the eighth day after placement of the ligature, we evaluated (1) NF-κB expression, (2) cytokines expression, (3) iNOS expression, (5) the nitration of tyrosine, (6) apoptosis, and (8) the degree of gingivomucosal tissues injury. Administration of GW0742 significantly decreased all of the parameters of inflammation as described above. Taken together, these results demonstrate that GW0742 exerts an anti-inflammatory role during experimental periodontitis and is able to ameliorate the tissue damage.

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BACKGROUND: Parkinson's disease (PD) is a neurodegenerative disease due to dopamine deficiency in the basal ganglia, leading to motor symptoms such as bradykinesia, tremor, stiffness, and postural instability. This disease may also be associated with a broad spectrum of non-motor symptoms. More than 24% of patients with PD have one or more cognitive symptoms. OBJECTIVE: To evaluate the effects of computer-assisted cognitive rehabilitation (CACR) in Parkinson's disease (PD). METHODS: Sixty patients with PD were enrolled in this study and were randomly divided into control group (CG) and experimental group (EG). Each participant was evaluated at the beginning (T0) and at the end of training (T1). The CG underwent standard cognitive training (SCT) while EG performed CACR using the ERICA platform, aimed at improving several cognitive domains. In both the group, each training consisted of 3 sessions a week, each of these lasting sixty minutes, for eight weeks. RESULTS: Although both the groups had significant improvement after CR, we observed more significant changes in the EG, especially concerning attention, orientation and visual-spatial domains. CONCLUSIONS: Our data demonstrate that CACR is more effective than SCT in improving visual-spatial and executive deficits, in patients affected by PD.

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COVID-19 has caused a public and international health emergency, leading to isolation and social distancing. These restrictions have had a significant impact on the caregivers of people with dementia, increasing the burden of patient management. The purpose of this study was to investigate the stress perceived by caregivers of patients with Alzheimer’s disease (AD) during the pandemic. We used a cross-sectional survey design to evaluate the caregivers’ psychological responses and coping strategies. Eighty-four caregivers of patients with a diagnosis of AD were involved in this study by completing an online questionnaire. They presented a high perception of stress (the Perceived Stress Scale mean ± DS: 33.5 ± 4.5), and their high burden in caring was mainly related to physical difficulties (Caregiver Burden Inventory–Physical Burden mean ± DS: 15.0 ± 2.1) and perception of loss of time (Caregiver Burden Inventory–Time-dependence Burden mean ± DS: 16.5 ± 1,4). Moreover, caregivers perceived their quality of life as very low (Short Form-12 Health Survey Physical mean ± DS: 13.5 ± 2.7; Short Form-12 Health Survey Mental Health mean ± DS: 16.4 ± 4.2). Finally, we found that participants mostly used dysfunctional coping strategies, such as avoidance strategies (Coping Orientation to Problem Experiences–Avoidance Strategies mean ± DS: 39.5 ± 7.1), but these strategies did not affect the stress level of caregivers. Given that caregivers present a high burden and stress, innovative tools could be a valuable solution to investigate and support their emotional and behavioral status during difficult periods, such as the COVID-19 pandemic.