155 research outputs found
European Perceptions of Autonomous and Robotized Cars
This article explores users\u2019 attitudes, perceptions, views, and emotions toward car automation and robotization, two processes increasingly affecting society in different ways\u2013\u2013namely, the rise of autonomous and robotized cars (and vehicles in general) and the increasing level of robotization of current cars. To address these questions, we investigated the feeling of trust and comfort toward driverless cars among Europeans using two Eurobarometer surveys. Making use of two representative samples of the European population, we aimed to explore citizens\u2019 attitudes and opinions about automation and digitization. The two surveys involved, respectively, 27,801 and 27,901 participants from all EU-28 countries. Furthermore, we investigated, in Northern Italy, the perception of robotization of cars and other technologies of everyday use, as well as the attitudes and opinions of children and preteens (n = 740), and adolescents (n = 801)\u2014 relevant social groups not covered in the Eurobarometer surveys
European perceptions of autonomous and robotized cars
open3noThis article explores users’ attitudes, perceptions, views, and emotions toward car automation and robotization, two processes increasingly affecting society in different ways––namely, the rise of autonomous and robotized cars (and vehicles in general) and the increasing level of robotization of current cars. To address these questions, we investigated the feeling of trust and comfort toward driverless cars among Europeans using two Eurobarometer surveys. Making use of two representative samples of the European population, we aimed to explore citizens’ attitudes and opinions about automation and digitization. The two surveys involved, respectively, 27,801 and 27,901 participants from all EU-28 countries. Furthermore, we investigated, in Northern Italy, the perception of robotization of cars and other technologies of everyday use, as well as the attitudes and opinions of children and preteens (n = 740), and adolescents (n = 801)— relevant social groups not covered in the Eurobarometer surveys.openFortunati, L., Lugano, G., Manganelli, A.M.Fortunati, L.; Lugano, G.; Manganelli, A. M
Autologous Microfragmented Adipose Tissue Reduces the Catabolic and Fibrosis Response in an in Vitro Model of Tendon Cell Inflammation
Background. Mesenchymal stem cells (MSCs) emerged as a promising therapy for tendon pathologies. Microfragmented adipose tissue (\u3bcFAT) represents a convenient autologous product for the application of MSC-based therapies in the clinical setting. In the present study, the ability of \u3bcFAT to counteract inflammatory processes induced by IL-1\u3b2 on human tendon cells (TCs) was evaluated. Methods. Cell viability and proliferation were evaluated after 48 hours of transwell coculture of TCs and autologous \u3bcFAT in the presence or absence of IL-1\u3b2. Gene expression of scleraxis, collagen type I and type III, metalloproteinases-1 and -3, and cyclooxygenase-2 was evaluated by real-time RT-PCR. The content of VEGF, IL-1Ra, TNF\u3b1, and IL-6 was evaluated by ELISA. Results. IL-1\u3b2-treated TCs showed augmented collagen type III, metalloproteases, and cyclooxygenase-2 expression. \u3bcFAT was able to reduce the expression of collagen type III and metalloproteases-1 in a significant manner, and at the same time, it enhanced the production of VEGF, IL-1Ra, and IL-6. Conclusions. In this in vitro model of tendon cell inflammation, the paracrine action of \u3bcFAT, exerted by anti-inflammatory molecules and growth factors, was able to inhibit the expression of fibrosis and catabolic markers. Then, these results suggest that the application of \u3bcFAT may represent an effective conservative or adjuvant therapy for the treatment of tendon disorders
Intervertebral disc and endplate cell characterisation highlights annulus fibrosus cells as the most promising for tissue-specific disc degeneration therapy
Degenerative processes of the intervertebral disc (IVD) and cartilaginous endplate lead to chronic spine pathologies. Several studies speculated on the intrinsic regenerative capacity of degenerated IVD related to the presence of local mesenchymal progenitors. However, a complete characterisation of the resident IVD cell populations, particularly that isolated from the endplate, is lacking. The purpose of the present study was to characterise the gene expression profiles of human nucleus pulposus (NPCs), annulus fibrosus (AFCs) and endplate (EPCs) cells, setting the basis for future studies aimed at identifying the most promising cells for regenerative purposes. Cells isolated from NP, AF and EP were analysed after in vitro expansion for their stemness ability, immunophenotype and gene profiles by large-scale microarray analysis. The three cell populations shared a similar clonogenic, adipogenic and osteogenic potential, as well as an immunophenotype with a pattern resembling that of mesenchymal stem cells. NPCs maintained the greatest chondrogenic potential and shared with EPCs the loss of proliferation capability during expansion. The largest number of selectively highly expressed stemness, chondrogenic/tissue-specific and surface genes was found in AFCs, thus representing the most promising source of tissue-specific expanded cells for the treatment of IVD degeneration
LDL-Induced Impairment of Human Vascular Smooth Muscle Cells Repair Function Is Reversed by HMG-CoA Reductase Inhibition
Growing human atherosclerotic plaques show a progressive loss of vascular smooth muscle cells (VSMC) becoming soft and vulnerable. Lipid loaded-VSMC show impaired vascular repair function and motility due to changes in cytoskeleton proteins involved in cell-migration. Clinical benefits of statins reducing coronary events have been related to repopulation of vulnerable plaques with VSMC. Here, we investigated whether HMG-CoA reductase inhibition with rosuvastatin can reverse the effects induced by atherogenic concentrations of LDL either in the native (nLDL) form or modified by aggregation (agLDL) on human VSMC motility. Using a model of wound repair, we showed that treatment of human coronary VSMC with rosuvastatin significantly prevented (and reversed) the inhibitory effect of nLDL and agLDL in the repair of the cell depleted areas. In addition, rosuvastatin significantly abolished the agLDL-induced dephosphorylation of myosin regulatory light chain as demonstrated by 2DE-electrophoresis and mass spectrometry. Besides, confocal microscopy showed that rosuvastatin enhances actin-cytoskeleton reorganization during lipid-loaded-VSMC attachment and spreading. The effects of rosuvastatin on actin-cytoskeleton dynamics and cell migration were dependent on ROCK-signalling. Furthermore, rosuvastatin caused a significant increase in RhoA-GTP in the cytosol of VSMC. Taken together, our study demonstrated that inhibition of HMG-CoA reductase restores the migratory capacity and repair function of VSMC that is impaired by native and aggregated LDL. This mechanism may contribute to the stabilization of lipid-rich atherosclerotic plaques afforded by statins
La gestione delle infezioni in anestesia e terapia intensiva: procedure e ruolo degli operatori
- …