353 research outputs found

    Where does brain neural activation in aesthetic responses to visual art occur? Meta-analytic evidence from neuroimaging studies

    Get PDF
    Here we aimed at finding the neural correlates of the general aspect of visual aesthetic experience (VAE) and those more strictly correlated with the content of the artworks. We applied a general activation likelihood estimation (ALE) meta-analysis to 47 fMRI experiments described in 14 published studies. We also performed four separate ALE analyses in order to identify the neural substrates of reactions to specific categories of artworks, namely portraits, representation of real-world-visual-scenes, abstract paintings, and body sculptures. The general ALE revealed that VAE relies on a bilateral network of areas, and the individual ALE analyses revealed different maximal activation for the artworks' categories as function of their content. Specifically, different content-dependent areas of the ventral visual stream are involved in VAE, but a few additional brain areas are involved as well. Thus, aesthetic-related neural responses to art recruit widely distributed networks in both hemispheres including content-dependent brain areas of the ventral visual stream. Together, the results suggest that aesthetic responses are not independent of sensory, perceptual, and cognitive processe

    Prognostic Value of 12-Leads Electrocardiogram at Emergency Department in Hospitalized Patients with Coronavirus Disease-19

    Get PDF
    BackgroundElectrocardiogram (ECG) offers a valuable resource easily available in the emergency setting.ObjectiveAim of the study was to describe ECG alterations on emergency department (ED) presentation or that developed during hospitalization in SARS-CoV-2-infected patients and their association with 28-day mortality.MethodsA retrospective, single-center study including hospitalized patients with SARS-CoV-2 was conducted. ECG was recorded on ED admission to determine: heart rhythm, rate, and cycle; atrio-ventricular and intra-ventricular conduction; right ventricular strain; and ventricular repolarization. A specialized cardiologist blinded for the outcomes performed all 12-lead ECG analyses and their interpretation.Results190 patients were included, with a total of 24 deaths (12.6%). Age (p < 0.0001) and comorbidity burden were significantly higher in non-survivors (p < 0.0001). Atrial fibrillation (AF) was more frequent in non-survivors (p < 0.0001), alongside a longer QTc interval (p = 0.0002), a lower Tp-e/QTc ratio (p = 0.0003), and right ventricular strain (p = 0.013). Remdesivir administration was associated with bradycardia development (p = 0.0005) but no increase in mortality rates. In a Cox regression model, AF (aHR 3.02 (95% CI 1.03-8.81); p = 0.042), QTc interval above 451 ms (aHR 3.24 (95% CI 1.09-9.62); p = 0.033), and right ventricular strain (aHR 2.94 (95% CI 1.01-8.55); p = 0.047) were associated with higher 28-day mortality risk.ConclusionsQTc interval > 451 ms, right ventricular strain, and AF are associated with higher mortality risk in SARS-CoV-2 hospitalized patients. ECG recording and its appropriate analysis offers a simple, quick, non-expensive, and validated approach in the emergency setting to guide COVID-19 patients' stratification

    Neuropsychology of aesthetic judgment of ambiguous and non-ambiguous artworks

    No full text
    Several affective and cognitive processes have been found to be pivotal in affecting aesthetic experience of artworks and both neuropsychological as well as psychiatric symptoms have been found to affect artistic production. However, there is a paucity of studies directly investigating effects of brain lesions on aesthetic judgment. Here, we assessed the effects of unilateral brain damage on aesthetic judgment of artworks showing part/whole ambiguity. We asked 19 unilaterally brain-damaged patients (10 left and 9 right brain damaged patients, respectively LBDP and RBDP) and 20 age- and education-matched healthy individuals (controls, C) to rate 10 Arcimboldo's ambiguous portraits (AP), 10 realistic Renaissance portraits (RP), 10 still life paintings (SL), and 10 Arcimboldo's modified portraits where only objects/parts are detectable (AO). They were also administered a Navon task, a facial recognition test, and evaluated on visuo-perceptual and visuo-constructional abilities. Patients included in the study did not show any deficits that could affect the capability to explore and enjoy artworks. SL and RP was not affected by brain damage regardless of its laterality. On the other hand, we found that RBDP liked AP more than the C participants. Furthermore, we found a positive correlation between aesthetic judgment of AP and visuo-perceptual skills even if the single case analyses failed to find a systematic association between neuropsychological deficits and aesthetic judgment of AP. On the whole, the present data suggest that a right hemisphere lesion may affect aesthetic judgment of ambiguous artworks, even in the absence of exploration or constructional deficits

    Why do you like Arcimboldo's portraits? Effect of perceptual style on aesthetic appreciation of ambiguous artworks

    No full text
    Visual aesthetic experience reflects the states of the mind and the brain when visual artworks are being viewed. In the present study, we investigated whether perceptual style affects the aesthetic appreciation of ambiguous artworks, such as those of Arcimboldo, which are characterized by part-whole ambiguity. Participants were classified as having a global or local perceptual style and were asked to aesthetically judge two different types of artworks: portraits by Arcimboldo and by Renaissance painters. We found that perceptual style affected both the aesthetic appreciation and the degree of perceived ambiguity in Arcimboldo's artworks. Our findings suggest that aesthetic judgment is a consequence of the interaction between individual personal perceptual style and the perceptual features of artworks

    Case report: Better late than never, but sooner is better: switch from CSII to sulfonylureas in two patients with neonatal diabetes due to KCNJ11 variants

    Get PDF
    Neonatal diabetes mellitus (NDM) is a rare genetic disease characterized by severe hyperglycemia requiring insulin therapy with onset mostly within the first 6 months and rarely between 6-12 months of age. The disease can be classified into transient (TNDM) or permanent neonatal diabetes mellitus (PNDM), or it can be a component of a syndrome. The most frequent genetic causes are abnormalities of the 6q24 chromosomal region and mutations of the ABCC8 or KCNJ11 genes coding for the pancreatic beta cell’s potassium channel (KATP). After the acute phase, patients with ABCC8 or KCNJ11 mutations treated with insulin therapy can switch to hypoglycemic sulfonylureas (SU). These drugs close the KATP channel binding the SUR1 subunit of the potassium channel and restoring insulin secretion after a meal. The timing of this switch can be different and could affect long-term complications. We describe the different management and clinical outcome over the time of two male patients with NDM due to KCNJ11 pathogenetic variants. In both cases, continuous subcutaneous insulin infusion pumps (CSII) were used to switch therapy from insulin to SU, but at different times after the onset. The two patients kept adequate metabolic control after the introduction of glibenclamide; during the treatment, insulin secretion was evaluated with c-peptide, fructosamine, and glycated hemoglobin (HbA1c), which were within the normal range. In neonates or infants with diabetes mellitus, genetic testing is an indispensable diagnostic tool and KCNJ11 variants should be considered. A trial of oral glibenclamide must be considered, switching from insulin, the first line of NDM treatment. This therapy can improve neurological and neuropsychological outcomes, in particular in the case of earlier treatment initiation. A new modified protocol with glibenclamide administered several times daily according to continuous glucose monitoring profile indications, was used. Patients treated with glibenclamide maintain good metabolic control and prevent hypoglycemia, neurological damage, and apoptosis of beta cells during long‐term administration

    Designed Glucopeptides Mimetics of Myelin Protein Epitopes As Synthetic Probes for the Detection of Autoantibodies, Biomarkers of Multiple Sclerosis

    No full text
    We previously reported that CSF114­(Glc) detects diagnostic autoantibodies in multiple sclerosis sera. We report herein a bioinformatic analysis of myelin proteins and CSF114­(Glc), which led to the identification of five sequences. These glucopeptides were synthesized and tested in enzymatic assays, showing a common minimal epitope. Starting from that, we designed an optimized sequence, SP077, showing a higher homology with both CSF114­(Glc) and the five sequences selected using the bioinformatic approach. SP077 was synthesized and tested on 50 multiple sclerosis patients’ sera, and was able to detect higher antibody titers as compared to CSF114­(Glc). Finally, the conformational properties of SP077 were studied by NMR spectroscopy and structure calculations. Thus, the immunological activity of SP077 in the recognition of specific autoantibodies in multiple sclerosis patients’ sera may be ascribed to both the optimized design of its epitopic region and the superior surface interacting properties of its C-terminal region

    Insights into the structure and regulation of glucokinase from a novel mutation (V62M), which causes maturity-onset diabetes of the young.

    Get PDF
    Glucokinase (GCK) serves as the pancreatic glucose sensor. Heterozygous inactivating GCK mutations cause hyperglycemia, whereas activating mutations cause hypoglycemia. We studied the GCK V62M mutation identified in two families and co-segregating with hyperglycemia to understand how this mutation resulted in reduced function. Structural modeling locates the mutation close to five naturally occurring activating mutations in the allosteric activator site of the enzyme. Recombinant glutathionyl S-transferase-V62M GCK is paradoxically activated rather than inactivated due to a decreased S0.5 for glucose compared with wild type (4.88 versus 7.55 mM). The recently described pharmacological activator (RO0281675) interacts with GCK at this site. V62M GCK does not respond to RO0281675, nor does it respond to the hepatic glucokinase regulatory protein (GKRP). The enzyme is also thermally unstable, but this lability is apparently less pronounced than in the proven instability mutant E300K. Functional and structural analysis of seven amino acid substitutions at residue Val62 has identified a non-linear relationship between activation by the pharmacological activator and the van der Waals interactions energies. Smaller energies allow a hydrophobic interaction between the activator and glucokinase, whereas larger energies prohibit the ligand from fitting into the binding pocket. We conclude that V62M may cause hyperglycemia by a complex defect of GCK regulation involving instability in combination with loss of control by a putative endogenous activator and/or GKRP. This study illustrates that mutations that cause hyperglycemia are not necessarily kinetically inactivating but may exert their effects by other complex mechanisms. Elucidating such mechanisms leads to a deeper understanding of the GCK glucose sensor and the biochemistry of beta-cells and hepatocytes

    Designed Glucopeptides Mimetics of Myelin Protein Epitopes As Synthetic Probes for the Detection of Autoantibodies, Biomarkers of Multiple Sclerosis

    No full text
    We previously reported that CSF114(Glc) detects diagnostic autoantibodies in multiple sclerosis sera. We report herein a bioinformatic analysis of myelin proteins and CSF114(Glc), which led to the identification of five sequences. These glucopeptides were synthesized and tested in enzymatic assays, showing a common minimal epitope. Starting from that, we designed an optimized sequence, SP077, showing a higher homology with both CSF114(Glc) and the five sequences selected using the bioinformatic approach. SP077 was synthesized and tested on 50 multiple sclerosis patients’ sera, and was able to detect higher antibody titers as compared to CSF114(Glc). Finally, the conformational properties of SP077 were studied by NMR spectroscopy and structure calculations. Thus, the immunological activity of SP077 in the recognition of specific autoantibodies in multiple sclerosis patients’ sera may be ascribed to both the optimized design of its epitopic region and the superior surface interacting properties of its C-terminal region

    Recommendations for self-monitoring in pediatric diabetes: A consensus statement by the ISPED

    No full text
    none165noScaramuzza, Andrea; Cherubini, Valentino; Tumini, Stefano; Bonfanti, Riccardo; Buono, Pietro; Cardella, Francesca; D’Annunzio, Giuseppe; Frongia, Anna Paola; Lombardo, Fortunato; Monciotti, Anna Carla Maria; Rabbone, Ivana; Schiaffini, Riccardo; Toni, Sonia; Zucchini, Stefano; Frontino, Giulio; Iafusco, Dario; Arnaldi, Claudia; Banin, Patrizia; Barbetti, Fabrizio; Beccaria, Luciano; Benelli, Marzia; Berardi, Rosario; Biagioni, Martina; Bianchi, Giuliana; Bizzarri, Carla; Blasetti, Annalisa; Bobbio, Adriana; Boccato, Stefano; Bontempi, Franco; Bruzzese, Mariella; Cadario, Francesco; Calcaterra, Valeria; CannatĂ , Alessandra; Cappa, Marco; Cardani, Roberta; Cardinale, Giuliana Marcella; Carloni, Ines; Castaldo, Vincenzo; Cauvin, Vittoria; Cerutti, Franco; Cester, Anna Maria; Chessa, Margherita; Chiarelli, Francesco; Chiari, Giovanni; Chiumello, Giuseppe; Cicchetti, Mario; Cirillo, Dante; Citriniti, Felice; Citro, Giuseppe; Coccioli, Maria Susanna; Cotellessa, Mario; CrinĂČ, Antonino; De Berardinis, Fiorella; De Filippo, Gianpaolo; De Giorgi, Giovanni; De Luca, Filippo; De Marco, Rosaria; Delvecchio, Maurizio; Faleschini, Elena; Federico, Giovanni; Fifi, Anna Rita; Fontana, Franco; Franzese, Adriana; Frezza, Elda; Frongia, Annapaola; Gaiero, Alberto; Galderisi, Alfonso; Gallo, Francesco; Gargantini, Luigi; Ghione, Silvia; Giorgetti, Chiara; Gualtieri, Antonella; Guasti, Monica; Guerraggio, Lucia; Iannilli, Antonio; Ingletto, Dario; Iossa, Carmine; Iovene, Brunella; Iughetti, Lorenzo; Kaufmann, Peter; La Loggia, Alfonso; Lazzaro, Nicola; Lenzi, Lorenzo; Lera, Riccardo; Lia, Rosanna; Lo Presti, Donatella; Lorini, Renata; Lucchesi, Sonia; Luceri, Sergio; Madeo, Simona Filomena; Maffeis, Claudio; Mainetti, Benedetta; Mammi, Francesco; Manca Bitti, Maria Luisa; Marigliano, Marco; Marinari, Alessandra; Marinaro, Anna Maria; Meloni, Gianfranco; Marsciani, Alberto; Mastrangelo, Lisa; Mastrangelo, Costanzo; Meschi, Franco; Minasi, Domenico; Minenna, Adelaide; Minuto, Nicola; Monciotti, Carlamaria; Morganti, Gianfranco; Mozzillo, Enza; Nugnes, Rosa; Paradiso, Emanuela; Pardi, Daniela; Pasquino, Bruno; Patrizia Patera, Ippolita; Pennati, Cristina; Pepe, Rossella; Piccini, Barbara; Perrotta, Angelo; Piccinno, Elvira; Pinelli, Leonardo; Piredda, Gavina; Pocecco, Mauro; Ponzi, Giuseppe; Prandi, Elena; Predieri, Barbara; Prisco, Francesco; Quinci, Maria; Ricciardi, Maria Rossella; Rigamonti, Andrea; Ripoli, Carlo; Sabbion, Alberto; Salardi, Silvana; Salvatoni, Alessandro; Salvo, Caterina; Salzano, Giuseppina; Saporiti, Anna; Sardi, Rita; Schieven, Eleonardo; Scipione, Mirella; Soci, Cristina; Soro, Miriam; Spallino, Luisa; Stamati, Filomena; Suprani, Tosca; Savastio, Silvia; Taccardi, Rosa Anna; Tarchini, Luis; Tomaselli, Letizia; Tonini, Giorgio; Torelli, Cataldo; Tornese, Gianluca; Trada, Michela; Valerio, Giuliana; Vanelli, Maurizio; Vanini, Roberto; Vascotto, Marina; Vergerio, Amedeo; Viscardi, Matteo; Zaffani, Silvana; Zampolli, Maria; Zanatta, Manuela; Zanette, Giorgio; Zanfardino, Angela; Zecchino, Clara; Zedda, Maria Antonietta; Zuccotti, Gian VincenzoScaramuzza, Andrea; Cherubini, Valentino; Tumini, Stefano; Bonfanti, Riccardo; Buono, Pietro; Cardella, Francesca; D’Annunzio, Giuseppe; Frongia, Anna Paola; Lombardo, Fortunato; Monciotti, Anna Carla Maria; Rabbone, Ivana; Schiaffini, Riccardo; Toni, Sonia; Zucchini, Stefano; Frontino, Giulio; Iafusco, Dario; Arnaldi, Claudia; Banin, Patrizia; Barbetti, Fabrizio; Beccaria, Luciano; Benelli, Marzia; Berardi, Rossana; Biagioni, Martina; Bianchi, Giuliana; Bizzarri, Carla; Blasetti, Annalisa; Bobbio, Adriana; Boccato, Stefano; Bontempi, Franco; Bruzzese, Mariella; Cadario, Francesco; Calcaterra, Valeria; CannatĂ , Alessandra; Cappa, Marco; Cardani, Roberta; Cardinale, Giuliana Marcella; Carloni, Ines; Castaldo, Vincenzo; Cauvin, Vittoria; Cerutti, Franco; Cester, Anna Maria; Chessa, Margherita; Chiarelli, Francesco; Chiari, Giovanni; Chiumello, Giuseppe; Cicchetti, Mario; Cirillo, Dante; Citriniti, Felice; Citro, Giuseppe; Coccioli, Maria Susanna; Cotellessa, Mario; CrinĂČ, Antonino; De Berardinis, Fiorella; De Filippo, Gianpaolo; De Giorgi, Giovanni; De Luca, Filippo; De Marco, Rosaria; Delvecchio, Maurizio; Faleschini, Elena; Federico, Giovanni; Fifi, Anna Rita; Fontana, Franco; Franzese, Adriana; Frezza, Elda; Frongia, Annapaola; Gaiero, Alberto; Galderisi, Alfonso; Gallo, Francesco; Gargantini, Luigi; Ghione, Silvia; Giorgetti, Chiara; Gualtieri, Antonella; Guasti, Monica; Guerraggio, Lucia; Iannilli, Antonio; Ingletto, Dario; Iossa, Carmine; Iovene, Brunella; Iughetti, Lorenzo; Kaufmann, Peter; La Loggia, Alfonso; Lazzaro, Nicola; Lenzi, Lorenzo; Lera, Riccardo; Lia, Rosanna; Lo Presti, Donatella; Lorini, Renata; Lucchesi, Sonia; Luceri, Sergio; Madeo, Simona Filomena; Maffeis, Claudio; Mainetti, Benedetta; Mammi, Francesco; Manca Bitti, Maria Luisa; Marigliano, Marco; Marinari, Alessandra; Marinaro, Anna Maria; Meloni, Gianfranco; Marsciani, Alberto; Mastrangelo, Lisa; Mastrangelo, Costanzo; Meschi, Franco; Minasi, Domenico; Minenna, Adelaide; Minuto, Nicola; Monciotti, Carlamaria; Morganti, Gianfranco; Mozzillo, Enza; Nugnes, Rosa; Paradiso, Emanuela; Pardi, Daniela; Pasquino, Bruno; Patrizia Patera, Ippolita; Pennati, Cristina; Pepe, Rossella; Piccini, Barbara; Perrotta, Angelo; Piccinno, Elvira; Pinelli, Leonardo; Piredda, Gavina; Pocecco, Mauro; Ponzi, Giuseppe; Prandi, Elena; Predieri, Barbara; Prisco, Francesco; Quinci, Maria; Ricciardi, Maria Rossella; Rigamonti, Andrea; Ripoli, Carlo; Sabbion, Alberto; Salardi, Silvana; Salvatoni, Alessandro; Salvo, Caterina; Salzano, Giuseppina; Saporiti, Anna; Sardi, Rita; Schieven, Eleonardo; Scipione, Mirella; Soci, Cristina; Soro, Miriam; Spallino, Luisa; Stamati, Filomena; Suprani, Tosca; Savastio, Silvia; Taccardi, Rosa Anna; Tarchini, Luis; Tomaselli, Letizia; Tonini, Giorgio; Torelli, Cataldo; Tornese, Gianluca; Trada, Michela; Valerio, Giuliana; Vanelli, Maurizio; Vanini, Roberto; Vascotto, Marina; Vergerio, Amedeo; Viscardi, Matteo; Zaffani, Silvana; Zampolli, Maria; Zanatta, Manuela; Zanette, Giorgio; Zanfardino, Angela; Zecchino, Clara; Zedda, Maria Antonietta; Zuccotti, Gian Vincenz
    • 

    corecore