65 results on '"Cola, M."'
Search Results
2. ReportFlow: an application for EEG visualization and reporting using cloud platform
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Bertuccio, S., Tardiolo, G., Giambò, F. M., Giuffrè, G., Muratore, R., Settimo, C., Raffa, A., Rigano, S., Bramanti, A., Muscarà, N., and De Cola, M. C.
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- 2021
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3. Recoil-induced subradiance in a cold atomic gas
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Cola, M. M., Bigerni, D., and Piovella, N.
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Condensed Matter - Other Condensed Matter - Abstract
Subradiance, i.e. the cooperative inhibition of spontaneous emission by destructive interatomic interference, can be realized in a cold atomic sample confined in a ring cavity and lightened by a two-frequency laser. The atoms, scattering the photons of the two laser fields into the cavity-mode, recoil and change their momentum. Under proper conditions the atomic initial momentum state and the first two momentum recoil states form a three-level degenerate cascade. A stationary subradiant state is obtained after that the scattered photons have left the cavity, leaving the atoms in a coherent superposition of the three collective momentum states. After a semiclassical description of the process, we calculate the quantum subradiant state and its Wigner function. Anti-bunching and quantum correlations between the three atomic modes of the subradiant state are demonstrated.
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- 2009
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4. Parametric optimization for an x-ray Free Electron Laser with a laser wiggler
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Bonifacio, R., Piovella, N., and Cola, M. M.
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Physics - Accelerator Physics ,Physics - Optics - Abstract
In this paper we optimize the experimental parameters to operate a Free Electron Laser with a laser wiggler in the Angstrom region. We show that the quantum regime of the Self Amplified Spontaneous Emission (Quantum SASE) may be reached with realistic parameters. The classical SASE regime is also discussed and compared with the quantum regime., Comment: submitted to Phys.Rev.ST-AB
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- 2006
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5. A quantum model for collective recoil lasing
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Bonifacio, R., Cola, M. M., and Piovella, N.
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Quantum Physics - Abstract
Free Electron Laser (FEL) and Collective Atomic Recoil Laser (CARL) are described by the same model of classical equations for properly defined scaled variables. These equations are extended to the quantum domain describing the particle's motion by a Schr\"{o}dinger equation coupled to a self-consistent radiation field. The model depends on a single collective parameter $\bar \rho$ which represents the maximum number of photons emitted per particle. We demonstrate that the classical model is recovered in the limit $\bar \rho\gg 1$, in which the Wigner function associated to the Schr\"{o}dinger equation obeys to the classical Vlasov equation. On the contrary, for $\bar \rho\le 1$, a new quantum regime is obtained in which both FELs and CARLs behave as a two-state system coupled to the self-consistent radiation field and described by Maxwell-Bloch equations.
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- 2004
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6. Superradiant light scattering from a moving Bose-Einstein condensate
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Bonifacio, R., Cataliotti, F. S., Cola, M., Fallani, L., Fort, C., Piovella, N., and Inguscio, M.
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Condensed Matter - Soft Condensed Matter - Abstract
We investigate the interaction of a moving BEC with a far detuned laser beam. Superradiant Rayleigh scattering arises from the spontaneous formation of a matter-wave grating due to the interference of two wavepackets with different momenta. The system is described by the CARL-BEC model which is a generalization of the Gross-Pitaevskii model to include the self-consistent evolution of the scattered field. The experiment gives evidence of a damping of the matter-wave grating which depends on the initial velocity of the condensate. We describe this damping in terms of a phase-diffusion decoherence process, in good agreement with the experimental results.
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- 2003
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7. Additional file 1 of Infants later diagnosed with autism have lower canonical babbling ratios in the first year of life
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Yankowitz, L. D., Petrulla, V., Plate, S., Tunc, B., Guthrie, W., Meera, S. S., Tena, K., Pandey, J., Swanson, M. R., Pruett, J. R., Cola, M., Russell, A., Marrus, N., Hazlett, H. C., Botteron, K., Constantino, J. N., Dager, S. R., Estes, A., Zwaigenbaum, L., Piven, J., Schultz, R. T., and Parish-Morris, J.
- Abstract
Additional file 1: Supplementary Material. Supplementary figure, tables, and text.
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- 2022
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8. Inhibitor of PI3Kγ ameliorates TNBS-induced colitis in mice by affecting the functional activity of CD4+CD25+FoxP3+ regulatory T cells
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Dutra, R C, Cola, M, Leite, D FP, Bento, A F, Claudino, R F, Nascimento, A FZ, Leal, P C, and Calixto, J B
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- 2011
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9. P3656Fontan operation performed in adult patients
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Santos Monteiro, T, primary, Cruz Lamas, C, additional, Terra Cola, M C, additional, Oliveira Monteiro, A J, additional, Machado Melo, M, additional, Mattoso, C C C, additional, Albani Sevenini, L, additional, and Abla, A, additional
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- 2019
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10. Repertorio degli architetti e operatori del cantiere barocco
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STURM, SAVERIO, COLA M. C., LUCCI M., Marcucci Laura, Villani Marcello, Sturm, Saverio, Cola, M. C., and Lucci, M.
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- 2012
11. Alzheimer’s disease patients classification by using EEG signals processing
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De Cola, M. C., Fiscon, Giulia, Weitschek, E., De Salvo, S., Felici, G., and Bramanti, P.
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- 2014
12. Avaliação da função endotelial de camundongas hipercolesterolêmicas
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COLA, M. S., Margareth Ribeiro Moyses, PEREIRA, R. B., and VASQUEZ, E. C.
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Made available in DSpace on 2018-08-01T22:58:34Z (GMT). No. of bitstreams: 1 tese_3514_Dissertação Mane Sousa Cola.pdf: 1214063 bytes, checksum: 147b3969916ff9dad6f6820f5c707ca9 (MD5) Previous issue date: 2009-09-11 Os efeitos da hipercolesterolemia sobre a vasomotricidade de camundongos deficientes para a apolipoproteína E (ApoE), um modelo murino que desenvolve aterosclerose espontaneamente, ainda são controversos. Os estudos prévios foram realizados majoritariamente em vasos de condutância e eles indicam que as fêmeas são mais susceptíveis à disfunção endotelial do que os machos. No presente estudo avaliamos a função endotelial de vasos de resistência de camundongos fêmeas normocolesterolêmicos C57BL/6 (C57) e hipercolesterolêmicos (ApoE) ovariectomizados em comparação aos normais. Camundongos C57 e ApoE de 5 meses de idade foram submetidos à ovariectomia (OVX) ou cirurgia fictícia (Sham) e estudados 30 dias após o procedimento. A reatividade vascular à norepinefrina (NE, 10-9 a 2x10-3 mol/L), à acetilcolina (ACh, 10-10 a 10-3 mol/L) e ao nitroprussiato de sódio (NPS) (10-10 a 10-3 mol/L) foi avaliada no leito arteriolar mesentérico isolado através de curvas concentração-efeito. O relaxamento induzido pela ACh foi significativamente reduzido nos animais ApoE quando comparado aos C57, como indicado pela resposta máxima (37±4% vs. 72±1%) e pelo LogEC50 (5,67 ± 0,18 vs. 6,23 ± 0,09 mol/L). A ovariectomia causou um prejuízo significante no relaxamento ACh-induzido no grupo C57 (resposta máxima: 61 ± 4%), mas não piorou o estado deficiente de relaxamento dos camundongos ApoE (resposta máxima: 39 ± 5%). O vasorelaxamento induzido pelo NPS e a vasoconstrição induzida por NE foram similares nos animais ApoE e C57 fêmeas. Este é o primeiro estudo a mostrar um prejuízo na função endotelial de vasos de resistência de camundongos espontaneamente ateroscleróticos (ApoE-deficientes) fêmeas em comparação com camundongos fêmeas normais (C57). A disfunção endotelial nos animais hipercolesterolêmicos foi tão marcante que a ovariectomia, que prejudicou a função endotelial em C57, não causou dano adicional nos camundongos ApoE-deficientes.
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- 2009
13. The PLASMONX Project for advanced beam physics experiments
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Alesini, D., Bellaveglia, M., Bertolucci, S., Boni, R., Boscolo, M., Castellano, M., Clozza, A., Dipirro, G., Drago, A., Esposito, A., Ferrario, M., Ficcadenti, L., Filippetto, D., Fusco, V., Gatti, G., Gallo, A., Ghigo, A., Incurvati, M., Ligi, C., Pellegrino, L., Preger, M., Ricci, R., Sanelli, C., Serio, M., Sgamma, F., Spataro, B., Stecchi, A., Stella, A., Tazzioli, F., Vaccarezza, C., Vescovi, M., Vicario, C., Aless, Ria, F., Bacci, A., Bonifacio, R., Broggi, F., Cola, M., Demartinis, C., Giove, D., Maroli, C., Mauri, M., Petrillo, V., Piovella, N., Pozzoli, R., Romè, M., Rossi, A. R., Serafini, L., Volpe, L., Levi, D., Mattioli, M., Musumeci, P., Medici, G., Pelliccia, D., Petrarca, M., Bottigli, U., Golosio, B., Oliva, P., Poggiu, A., Stumbo, S., Barbini, A., Baldeschi, W., Cecchetti, C. A., Galimberti, M., Giulietti, A., Giulietti, D., Gizzi, L. A., Koester, P., Labate, L., Laville, S., Rossi, A., Tomassini, P., Palumbo, Luigi, Mattioli, Mario Claudio, Petrarca, Massimo, Migliorati, Mauro, and Mostacci, Andrea
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X band - Published
- 2006
14. Possible role for Ca+clmodulin-dependent protein kinase as an effector of the fertilization Ca+ signal in mouse oocytes activation
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Tatone, C., DELLE MONACHE, S., Iorio, R., Caserta, Donatella, DI COLA, M., and Colonna, R.
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- 2002
15. Dissimilar Metal Joints for the APT Superconducting Cavity's Cryogenic Plumbing System
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Cola, M J, Lyons, M B, Teter, D F, and Gentzlinger, R C
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Accelerators and Storage Rings - Published
- 1999
16. Inhibitor of PI3Kγ ameliorates TNBS‐induced colitis in mice by affecting the functional activity of CD4 + CD25 + FoxP3 + regulatory T cells
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Dutra, RC, primary, Cola, M, additional, Leite, DFP, additional, Bento, AF, additional, Claudino, RF, additional, Nascimento, AFZ, additional, Leal, PC, additional, and Calixto, JB, additional
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- 2011
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17. Possible role for Ca2+ calmodulin-dependent protein kinase II as an effector of the fertilization Ca2+ signal in mouse oocyte activation.
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Tatone, C., Delle Monache, S., Iorio, R., Caserta, D., Di Cola, M., and Colonna, R.
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- 2002
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18. Meta-analysis on the Association Between Thyroid Hormone Disorders and Arterial Stiffness
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Stella Bernardi, Andrea Grillo, Roberta Maria Antonello, Marco Fabio Cola, Chiara Dobrinja, Bruno Fabris, Fabiola Giudici, Bernardi, S., Grillo, A., Antonello, R. M., Cola, M. F., Dobrinja, C., Fabris, B., and Giudici, F.
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meta-analysis ,arterial stiffness ,Endocrinology, Diabetes and Metabolism ,arterial stiffne ,pulse wave velocity ,hyperthyroidism ,hypothyroidism ,thyrotoxicosis ,meta-analysi - Abstract
Context Aortic stiffness is an emerging predictor of cardiovascular morbidity and mortality. Current data about the effect of subclinical and overt thyroid hormone disorders on aortic stiffness are often conflicting. Objective Primary outcome was to investigate if subclinical and overt thyroid hormone disorders were associated with aortic stiffness. Secondary outcome was to identify disease effect modifiers. Methods Data sources were PubMed, Google Scholar, SCOPUS, Web of Sciences, and the Cochrane Library. Eligible studies included reports of pulse wave velocity (PWV), which is the gold standard method for measuring aortic stiffness, in patients with subclinical and overt thyroid disorders. Two investigators independently identified eligible studies and extracted data. Pooled mean difference was the summary effect measure. Data were presented in forest plots with outlier and influential case diagnostics. Univariate meta-regression analysis was used to identify effect modifiers. Results Eleven observational studies were selected, including 1239 patients with subclinical hypothyroidism, 81 patients with overt hypothyroidism, 338 patients with thyrotoxicosis, and 12 715 controls. PWV was significantly higher in subclinical (P Conclusion This study shows that both overt and subclinical hypothyroidism as well as thyrotoxicosis were associated with an increase of aortic stiffness. The impact of treatment of these conditions on aortic stiffness should be assessed in clinical trials.
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- 2022
19. Involvement of Opioid System and TRPM8/TRPA1 Channels in the Antinociceptive Effect of Spirulina platensis
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Eduarda Gomes Ferrarini, Donatella Cicia, Amanda Vasconcelos, Rafael C. Dutra, Maíra Cola, Raffaele Capasso, Gabriela Bonfanti Vieira, Mariana A. Freitas, Elaine C. D. Gonçalves, Freitas, M. A., Vasconcelos, A., Goncalves, E. C. D., Ferrarini, E. G., Vieira, G. B., Cicia, D., Cola, M., Capasso, R., and Dutra, R. C.
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Male ,Nociception ,0301 basic medicine ,Antioxidant ,Narcotic Antagonists ,medicine.medical_treatment ,Analgesic ,TRPV1 ,TRPM Cation Channels ,Spirulina platensis ,(+)-Naloxone ,Pharmacology ,Microbiology ,Biochemistry ,Article ,Plant Extract ,Nociceptive Pain ,functional food ,Mice ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,opioid system ,ionic channel ,Oral administration ,Spirulina ,medicine ,Animals ,pain ,TRPA1 Cation Channel ,Molecular Biology ,Spirulina (genus) ,Analgesics ,biology ,Animal ,Naloxone ,Plant Extracts ,Chemistry ,analgesic ,biology.organism_classification ,QR1-502 ,030104 developmental biology ,Capsaicin ,Menthol ,Spirulina platensi ,Narcotic Antagonist ,030217 neurology & neurosurgery - Abstract
Spirulina platensis is a “super-food” and has attracted researchers’ attention due toits anti-inflammatory, antioxidant, and analgesic properties. Herein, we investigated the antinociceptive effects of Spirulina in different rodent behavior models of inflammatory pain. Male Swiss mice were treated with Spirulina (3–300 mg/kg, p.o.), indomethacin (10 mg/kg, p.o.), or vehicle (0.9% NaCl 10 mL/kg). Behavioral tests were performed with administration of acetic acid (0.6%, i.p.), formalin 2.7% (formaldehyde 1%, i.pl.), menthol (1.2 µmol/paw, i.pl.), cinnamaldehyde (10 nmol/paw, i.pl.), capsaicin (1.6 µg/paw, i.pl.), glutamate (20 µmol/paw, i.pl.), or naloxone (1 mg/kg, i.p.).The animals were also exposed to the rotarod and open field test to determine possible effects of Spirulina on locomotion and motor coordination. The quantitative phytochemical assays exhibited thatSpirulina contains significant concentrations of total phenols and flavonoid contents, as well as it showed a powerful antioxidant effect with the highest scavenging activity.Oral administration of Spirulina completely inhibited the abdominal contortions induced by acetic acid (ED50 = 20.51 mg/kg). Spirulinatreatment showed significant inhibition of formalin-induced nociceptive behavior during the inflammatory phase, and the opioid-selective antagonist markedly blocked this effect. Furthermore, our data indicate that the mechanisms underlying Spirulina analgesia appear to be related to its ability to modulate TRMP8 and TRPA1, but not by TRPV1 or glutamatergic system. Spirulina represents an orally active and safe natural analgesic that exhibits great therapeutic potential for managing inflammatory pain disorders.
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- 2021
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20. Antidepressant-Like Effect of Terpineol in an Inflammatory Model of Depression: Involvement of the Cannabinoid System and D2 Dopamine Receptor
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Elaine C. D. Gonçalves, Graziela Vieira, Rafael C. Dutra, Saulo F.P. Braga, Maíra Cola, Adair R.S. Santos, Rafaela Salgado Ferreira, Juliana Cavalli, Nádia Rezende Barbosa Raposo, Raffaele Capasso, Vieira, G., Cavalli, J., Goncalves, E. C. D., Braga, S. F. P., Ferreira, R. S., Santos, A. R. S., Cola, M., Raposo, N. R. B., Capasso, R., and Dutra, R. C.
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Lipopolysaccharides ,Male ,medicine.drug_class ,Dopamine Agents ,Anti-Inflammatory Agents ,lcsh:QR1-502 ,Pharmacology ,Adenosine receptor antagonist ,Biochemistry ,Article ,lcsh:Microbiology ,Mice ,03 medical and health sciences ,0302 clinical medicine ,terpenoids ,Dopamine receptor D2 ,Cannabinoid Receptor Modulators ,phytocannabinoid ,medicine ,Cannabinoid receptor type 2 ,Animals ,Inverse agonist ,Receptors, Cannabinoid ,Receptor ,Molecular Biology ,030304 developmental biology ,0303 health sciences ,Binding Sites ,dopaminergic receptor ,Receptors, Dopamine D2 ,Chemistry ,cannabinoid receptor ,Receptor antagonist ,Antidepressive Agents ,Molecular Docking Simulation ,Hindlimb Suspension ,Dopamine receptor ,depression ,Monoterpenes ,Cannabinoid receptor antagonist ,lipids (amino acids, peptides, and proteins) ,030217 neurology & neurosurgery ,Protein Binding - Abstract
Depression has a multifactorial etiology that arises from environmental, psychological, genetic, and biological factors. Environmental stress and genetic factors acting through immunological and endocrine responses generate structural and functional changes in the brain, inducing neurogenesis and neurotransmission dysfunction. Terpineol, monoterpenoid alcohol, has shown immunomodulatory and neuroprotective effects, but there is no report about its antidepressant potential. Herein, we used a single lipopolysaccharide (LPS) injection to induce a depressive-like effect in the tail suspension test (TST) and the splash test (ST) for a preventive and therapeutic experimental schedule. Furthermore, we investigated the antidepressant-like mechanism of action of terpineol while using molecular and pharmacological approaches. Terpineol showed a coherent predicted binding mode mainly against CB1 and CB2 receptors and also against the D2 receptor during docking modeling analyses. The acute administration of terpineol produced the antidepressant-like effect, since it significantly reduced the immobility time in TST (100&ndash, 200 mg/kg, p.o.) as compared to the control group. Moreover, terpineol showed an antidepressant-like effect in the preventive treatment that was blocked by a nonselective dopaminergic receptor antagonist (haloperidol), a selective dopamine D2 receptor antagonist (sulpiride), a selective CB1 cannabinoid receptor antagonist/inverse agonist (AM281), and a potent and selective CB2 cannabinoid receptor inverse agonist (AM630), but it was not blocked by a nonselective adenosine receptor antagonist (caffeine) or a &beta, adrenoceptor antagonist (propranolol). In summary, molecular docking suggests that CB1 and CB2 receptors are the most promising targets of terpineol action. Our data showed terpineol antidepressant-like modulation by CB1 and CB2 cannabinoid receptors and D2-dopaminergic receptors to further corroborate our molecular evidence.
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- 2020
21. BEYOND WAIST CIRCUMFERENCE IN AN ADULT MALE POPULATION OF SOUTHERN ITALY: IS THERE ANY ROLE FOR SUBSCAPULAR SKINFOLD THICKNESS IN THE RELATIONSHIP BETWEEN INSULIN-LIKE GROWTH FACTOR-1 SYSTEM AND METABOLIC PARAMETERS ?
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SAVASTANO, SILVIA, A. Barbato, DI SOMMA, CAROLINA, GUIDA, BRUNA, G. Pizza, L. Barrea, S. Avallone, M. Schiano di Cola, STRAZZULLO, PASQUALE, COLAO, ANNAMARIA, Savastano, Silvia, Barbato, A., DI SOMMA, Carolina, Guida, Bruna, Pizza, G., Barrea, L., Avallone, S., Schiano di Cola, M., Strazzullo, Pasquale, and Colao, Annamaria
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body composition ,IGFBP ,subscapular skinfold thickness ,IGF-I - Abstract
Background: Apart from waist circumference, other adiposity measures, such as subscapular skin fold (SST), arouse growing interest due to their relationship to metabolic complications and cardiovascular risk. The Insulin-like Growth Factor (IGF)-1 system is deregulated in obese subjects in proportion to their degree of visceral adiposity. Aim : To examine the association among IGF-1, IGF-Binding Protein (BP)1 and 3 levels and different measures of adiposity in a sample of adult male population in Southern Italy. Materials and Methods: A complete database for this analysis was available for 229 (age range 50–82 years) participating at 2002-2004 Olivetti Heart Study follow-up. Results: After adjustment for age, IGF-1 was inversely associated with BMI and waist circumference (p
- Published
- 2012
22. Blood Eosinophils Matter in Post-COVID-19 Pneumonia.
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Bernardinello N, Castelli G, Pasin D, Grisostomi G, Cola M, Giraudo C, Cocconcelli E, Cattelan A, Spagnolo P, and Balestro E
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Background: Even after the development of vaccines, SARS-CoV-2 continues to cause severe pneumonia all over the world. Consequently, in order to improve the management of patients and optimize the use of resources, predictors of disease severity and lung complications after COVID-19 pneumonia are urgently needed. Blood cell count is an easily available and reproducible biomarker. With this study, we aimed to explore the role of eosinophils in predicting disease behavior and pulmonary sequelae at first follow-up with computed tomography (CT)., Methods: we evaluated blood cell count and other inflammatory markers, both at baseline and during hospitalization, in a large population of hospitalized COVID-19 patients., Results: 327 patients were finally enrolled, 214 were classified as low-intensity medical care (LIMC) and 113 as high-intensity medical care. Eosinophils were higher at discharge in the HIMC group [0.1 (0-0.72) vs. 0.05 (0-0.34) × 109/L; p < 0.0001]. Moreover, in the multivariable analysis, age ≥ 62 years (OR 1.76 (1.05-2.8) p = 0.03) and Δ eosinophils ≥ 0.05 (OR 1.75 (1.05-2.9) p = 0.03) were two independent predictors of residual lung abnormalities in the whole patient population at first follow-up., Conclusions: an eosinophil increase during hospitalization could be a potential predictor of pulmonary sequelae in surviving patients after COVID-19 pneumonia.
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- 2024
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23. Immune System Deficiencies Do Not Alter SARS-CoV-2 Evolutionary Rate but Favour the Emergence of Mutations by Extending Viral Persistence.
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Manuto L, Bado M, Cola M, Vanzo E, Antonello M, Mazzotti G, Pacenti M, Cordioli G, Sasset L, Cattelan AM, Toppo S, and Lavezzo E
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- Humans, Pandemics, Mutation, Quasispecies, SARS-CoV-2 genetics, COVID-19
- Abstract
During the COVID-19 pandemic, immunosuppressed patients showed prolonged SARS-CoV-2 infections, with several studies reporting the accumulation of mutations in the viral genome. The weakened immune system present in these individuals, along with the effect of antiviral therapies, are thought to create a favourable environment for intra-host viral evolution and have been linked to the emergence of new viral variants which strongly challenged containment measures and some therapeutic treatments. To assess whether impaired immunity could lead to the increased instability of viral genomes, longitudinal nasopharyngeal swabs were collected from eight immunocompromised patients and fourteen non-immunocompromised subjects, all undergoing SARS-CoV-2 infection. Intra-host viral evolution was compared between the two groups through deep sequencing, exploiting a probe-based enrichment method to minimise the possibility of artefactual mutations commonly generated in amplicon-based methods, which heavily rely on PCR amplification. Although, as expected, immunocompromised patients experienced significantly longer infections, the acquisition of novel intra-host viral mutations was similar between the two groups. Moreover, a thorough analysis of viral quasispecies showed that the variability of viral populations in the two groups is comparable not only at the consensus level, but also when considering low-frequency mutations. This study suggests that a compromised immune system alone does not affect SARS-CoV-2 within-host genomic variability.
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- 2024
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24. Sex differences in the temporal dynamics of autistic children's natural conversations.
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Cho S, Cola M, Knox A, Pelella MR, Russell A, Hauptmann A, Covello M, Cieri C, Liberman M, Schultz RT, and Parish-Morris J
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- Adolescent, Humans, Child, Male, Female, Sex Characteristics, Communication, Language, Speech, Autistic Disorder diagnosis
- Abstract
Background: Autistic girls are underdiagnosed compared to autistic boys, even when they experience similar clinical impact. Research suggests that girls present with distinct symptom profiles across a variety of domains, such as language, which may contribute to their underdiagnosis. In this study, we examine sex differences in the temporal dynamics of natural conversations between naïve adult confederates and school-aged children with or without autism, with the goal of improving our understanding of conversational behavior in autistic girls and ultimately improving identification., Methods: Forty-five school-aged children with autism (29 boys and 16 girls) and 47 non-autistic/neurotypical (NT) children (23 boys and 24 girls) engaged in a 5-min "get-to-know-you" conversation with a young adult confederate that was unaware of children's diagnostic status. Groups were matched on IQ estimates. Recordings were time-aligned and orthographically transcribed by trained annotators. Several speech and pause measures were calculated. Groups were compared using analysis of covariance models, controlling for age., Results: Autistic girls used significantly more words than autistic boys, and produced longer speech segments than all other groups. Autistic boys spoke more slowly than NT children, whereas autistic girls did not differ from NT children in total word counts or speaking rate. Autistic boys interrupted confederates' speech less often and produced longer between-turn pauses (i.e., responded more slowly when it was their turn) compared to other children. Within-turn pause duration did not differ by group., Limitations: Our sample included verbally fluent children and adolescents aged 6-15 years, so our study results may not replicate in samples of younger children, adults, and individuals who are not verbally fluent. The results of this relatively small study, while compelling, should be interpreted with caution and replicated in a larger sample., Conclusion: This study investigated the temporal dynamics of everyday conversations and demonstrated that autistic girls and boys have distinct natural language profiles. Specifying differences in verbal communication lays the groundwork for the development of sensitive screening and diagnostic tools to more accurately identify autistic girls, and could inform future personalized interventions that improve short- and long-term social communication outcomes for all autistic children., (© 2023. The Author(s).)
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- 2023
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25. Research Topic: Measurable Residual Disease in Hematologic Malignancies. Can digital droplet PCR improve measurable residual disease monitoring in chronic lymphoid malignancies?
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Assanto GM, Del Giudice I, Della Starza I, Soscia R, Cavalli M, Cola M, Bellomarino V, Di Trani M, Guarini A, and Foà R
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Minimal/measurable residual disease (MRD) monitoring is progressively changing the management of hematologic malignancies. The possibility of detecting the persistence/reappearance of disease in patients in apparent clinical remission offers a refined risk stratification and a treatment decision making tool. Several molecular techniques are employed to monitor MRD, from conventional real-time quantitative polymerase chain reaction (RQ-PCR) to next generation sequencing and digital droplet PCR (ddPCR), in different tissues or compartments through the detection of fusion genes, immunoglobulin and T-cell receptor gene rearrangements or disease-specific mutations. RQ-PCR is still the gold standard for MRD analysis despite some limitations. ddPCR, considered the third-generation PCR, yields a direct, absolute, and accurate detection and quantification of low-abundance nucleic acids. In the setting of MRD monitoring it carries the major advantage of not requiring a reference standard curve built with the diagnostic sample dilution and of allowing to reduce the number of samples below the quantitative range. At present, the broad use of ddPCR to monitor MRD in the clinical practice is limited by the lack of international guidelines. Its application within clinical trials is nonetheless progressively growing both in acute lymphoblastic leukemia as well as in chronic lymphocytic leukemia and non-Hodgkin lymphomas. The aim of this review is to summarize the accumulating data on the use of ddPCR for MRD monitoring in chronic lymphoid malignancies and to highlight how this new technique is likely to enter into the clinical practice., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2023 Assanto, Del Giudice, Della Starza, Soscia, Cavalli, Cola, Bellomarino, Di Trani, Guarini and Foà.)
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- 2023
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26. Sex differences in social and emotional insight in youth with and without autism.
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Mattern H, Cola M, Tena KG, Knox A, Russell A, Pelella MR, Hauptmann A, Covello M, Parish-Morris J, and McCleery JP
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- Humans, Female, Adolescent, Male, Emotions, Language, Peer Group, Sex Characteristics, Autistic Disorder
- Abstract
Autism was formally recognized by the medical community in the first half of the twentieth century. Almost 100 years later, a small but growing literature has reported sex differences in the behavioral expression of autism. Recent research has also begun to explore the internal experiences of individuals with autism, including social and emotional insight. The current study examines sex differences in language-based markers of social and emotional insight in girls and boys with autism and non-autistic peers during semi-structured clinical interviews. Sixty-four participants aged 5 to 17 years were individually matched on chronological age and full-scale IQ to form four groups: autistic girls, autistic boys, non-autistic girls, and non-autistic boys. Transcribed interviews were scored using four scales that index aspects of social and emotional insight. Results revealed the main effects of diagnosis, such that youth with autism exhibited lower insight than non-autistic youth on scales indexing social cognition and object relations, emotional investment, and social causality. With regards to sex differences, across diagnoses, girls were rated higher than boys on the social cognition and object relations, emotional investment, and social causality scales. Examined within each diagnosis separately, clear sex differences emerged: both autistic and non-autistic girls demonstrated better social cognition and understanding of social causality than boys in their respective diagnostic groups. No within-diagnosis sex differences were found on the emotional insight scales, however. These results suggest that relatively enhanced social cognition and understanding of social causality in girls may be a population-level sex difference that is preserved in autism, despite the core social challenges that characterize this condition. The current findings reveal critical new information about insight into social and emotional thinking and relationships in autistic girls versus boys that have important implications for improving identification and designing effective interventions., (© 2023. The Author(s).)
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- 2023
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27. Friend matters: sex differences in social language during autism diagnostic interviews.
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Cola M, Yankowitz LD, Tena K, Russell A, Bateman L, Knox A, Plate S, Cubit LS, Zampella CJ, Pandey J, Schultz RT, and Parish-Morris J
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- Child, Female, Friends, Humans, Language, Male, Sex Characteristics, Sex Factors, Autism Spectrum Disorder diagnosis, Autistic Disorder diagnosis
- Abstract
Background: Autistic individuals frequently experience social communication challenges. Girls are diagnosed with autism less often than boys even when their symptoms are equally severe, which may be due to insufficient understanding of the way autism manifests in girls. Differences in the behavioral presentation of autism, including how people talk about social topics, could contribute to these persistent problems with identification. Despite a growing body of research suggesting that autistic girls and boys present distinct symptom profiles in a variety of domains, including social attention, friendships, social motivation, and language, differences in the way that autistic boys and girls communicate verbally are not yet well understood. Closely analyzing boys' and girls' socially-focused language during semi-structured clinical assessments could shed light on potential sex differences in the behavioral presentation of autistic individuals that may prove useful for identifying and effectively supporting autistic girls. Here, we compare social word use in verbally fluent autistic girls and boys during the interview sections of the ADOS-2 Module 3 and measure associations with clinical phenotype., Methods: School-aged girls and boys with autism (N = 101, 25 females; aged 6-15) were matched on age, IQ, and parent/clinician ratings of autism symptom severity. Our primary analysis compared the number of social words produced by autistic boys and girls (normalized to account for differences in total word production). Social words are words that make reference to other people, including friends and family., Results: There was a significant main effect of sex on social word production, such that autistic girls used more social words than autistic boys. To identify the specific types of words driving this effect, additional subcategories of friend and family words were analyzed. There was a significant effect of sex on friend words, with girls using significantly more friend words than boys. However, there was no significant main effect of sex on family words, suggesting that sex differences in social word production may be driven by girls talking more about friends compared to boys, not family. To assess relationships between word use and clinical phenotype, we modeled ADOS-2 Social Affect (SA) scores as a function of social word production. In the overall sample, social word use correlated significantly with ADOS-2 SA scores, indicating that participants who used more social words were rated as less socially impaired by clinicians. However, when examined in each sex separately, this result only held for boys., Limitations: This study cannot speak to the ways in which social word use may differ for younger children, adults, or individuals who are not verbally fluent; in addition, there were more autistic boys than girls in our sample, making it difficult to detect small effects., Conclusions: Autistic girls used significantly more social words than boys during a diagnostic assessment-despite being matched on age, IQ, and both parent- and clinician-rated autism symptom severity. Sex differences in linguistic markers of social phenotype in autism are especially important in light of the late or missed diagnoses that disproportionately affect autistic girls. Specifically, heightened talk about social topics could complicate autism referral and diagnosis when non-clinician observers expect a male-typical pattern of reduced social focus, which autistic girls may not always exhibit., (© 2022. The Author(s).)
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- 2022
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28. Involvement of Opioid System and TRPM8/TRPA1 Channels in the Antinociceptive Effect of Spirulina platensis .
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Freitas MA, Vasconcelos A, Gonçalves ECD, Ferrarini EG, Vieira GB, Cicia D, Cola M, Capasso R, and Dutra RC
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- Analgesics therapeutic use, Animals, Capsaicin pharmacology, Male, Mice, Naloxone pharmacology, Nociception drug effects, Plant Extracts therapeutic use, Analgesics pharmacology, Narcotic Antagonists pharmacology, Nociceptive Pain drug therapy, Plant Extracts pharmacology, Spirulina chemistry, TRPA1 Cation Channel metabolism, TRPM Cation Channels metabolism
- Abstract
Spirulina platensis is a "super-food" and has attracted researchers' attention due to its anti-inflammatory, antioxidant, and analgesic properties. Herein, we investigated the antinociceptive effects of Spirulina in different rodent behavior models of inflammatory pain. Male Swiss mice were treated with Spirulina (3-300 mg/kg, p.o.), indomethacin (10 mg/kg, p.o.), or vehicle (0.9% NaCl 10 mL/kg). Behavioral tests were performed with administration of acetic acid (0.6%, i.p.), formalin 2.7% (formaldehyde 1%, i.pl.), menthol (1.2 µmol/paw, i.pl.), cinnamaldehyde (10 nmol/paw, i.pl.), capsaicin (1.6 µg/paw, i.pl.), glutamate (20 µmol/paw, i.pl.), or naloxone (1 mg/kg, i.p.). The animals were also exposed to the rotarod and open field test to determine possible effects of Spirulina on locomotion and motor coordination. The quantitative phytochemical assays exhibited that Spirulina contains significant concentrations of total phenols and flavonoid contents, as well as it showed a powerful antioxidant effect with the highest scavenging activity. Oral administration of Spirulina completely inhibited the abdominal contortions induced by acetic acid (ED
50 = 20.51 mg/kg). Spirulina treatment showed significant inhibition of formalin-induced nociceptive behavior during the inflammatory phase, and the opioid-selective antagonist markedly blocked this effect. Furthermore, our data indicate that the mechanisms underlying Spirulina analgesia appear to be related to its ability to modulate TRMP8 and TRPA1, but not by TRPV1 or glutamatergic system. Spirulina represents an orally active and safe natural analgesic that exhibits great therapeutic potential for managing inflammatory pain disorders.- Published
- 2021
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29. More severe hypercoagulable state in acute COVID-19 pneumonia as compared to other pneumonia.
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Spiezia L, Campello E, Cola M, Poletto F, Cerruti L, Poretto A, Simion C, Cattelan A, Vettor R, and Simioni P
- Abstract
Objective: To conduct a comprehensive evaluation of coagulation profiles - via traditional and whole blood thromboelastometry tests - in COVID-19 positive vs. COVID-19 negative patients admitted to medical wards for acute pneumonia., Patients and Methods: We enrolled all consecutive patients admitted to Internal Medicine wards of Padova University Hospital between 7 March and 30 April 2020 for COVID-19-related pneumonia (cases) vs. non-COVID-19 pneumonia (controls). A group of healthy subjects acted as baseline for thromboelastometry parameters., Results: Fifty-six cases (mean age 64±15 yrs, M/F 37/19) and 56 controls (mean age 76±11 yrs, M/F 35/21) were enrolled. Cases and controls showed markedly hypercoagulable thromboelastometry profiles vs. healthy subjects, mainly characterized by a significantly shorter propagation phase of coagulation (Clot Formation Time, CFT) and significantly increased maximum clot firmness (MCF) (p <0.001 in all comparisons). COVID-19 patients with pneumonia had significantly shorter CFT and higher MCF (p <0.01 and <0.05, respectively in all comparisons) vs. controls., Conclusion: Patients admitted to internal medicine wards for COVID-19 pneumonia presented a markedly prothrombotic state, which seems peculiar to COVID-19 rather than pneumonia itself., (.)
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- 2021
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30. More Severe Hypercoagulable State in Acute COVID-19 Pneumonia as Compared With Other Pneumonia.
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Spiezia L, Campello E, Cola M, Poletto F, Cerruti L, Poretto A, Simion C, Cattelan A, Vettor R, and Simioni P
- Abstract
Objective: To conduct a comprehensive evaluation of coagulation profiles-via traditional and whole blood thromboelastometry tests-in coronavirus disease 2019 (COVID-19)-positive vs COVID-19-negative patients admitted to medical wards for acute pneumonia., Patients and Methods: We enrolled all consecutive patients admitted to internal medicine wards of Padova University Hospital between 7 March and 30 April, 2020, for COVID-19-related pneumonia (cases) vs non-COVID-19 pneumonia (controls). A group of healthy individuals acted as baseline for thromboelastometry parameters., Results: Fifty-six cases (mean age, 64±15 years; male/female, 37/19) and 56 controls (mean age, 76±11 years; male/female, 35/21) were enrolled. Cases and controls exhibited markedly hypercoagulable thromboelastometry profiles vs healthy individuals, mainly characterized by a significantly shorter propagation phase of coagulation (clot formation time) and significantly increased maximum clot firmness ( P <.001 for all comparisons). Patients with COVID-19 pneumonia had significantly shorter clot formation time and higher maximum clot firmness ( P <.01 and P <.05, respectively, for all comparisons) than did controls., Conclusion: Patients admitted to internal medicine wards for COVID-19 pneumonia presented a markedly prothrombotic state, which seems peculiar to COVID-19 rather than pneumonia itself., (© 2020 Mayo Foundation for Medical Education and Research. Published by Elsevier Inc.)
- Published
- 2020
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31. COVID-19 and Venous Thromboembolism in Intensive Care or Medical Ward.
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Avruscio G, Camporese G, Campello E, Bernardi E, Persona P, Passarella C, Noventa F, Cola M, Navalesi P, Cattelan A, Tiberio I, Boscolo A, Spiezia L, and Simioni P
- Subjects
- Aged, Aged, 80 and over, Cohort Studies, Critical Care, Female, Humans, Male, Middle Aged, COVID-19 complications, SARS-CoV-2, Venous Thromboembolism epidemiology
- Abstract
Despite thromboprophylaxis, patients with coronavirus disease 2019 (COVID-19) exhibit hypercoagulability and higher venous thromboembolic risk, although its real incidence is still unknown. The aim of this study was to evaluate the incidence of venous thromboembolism (VTE) in patients with COVID-19 admitted to both intensive care units (ICUs) and medical wards (MWs). Consecutive patients admitted for COVID-19 to the MW and the ICU at Padua University Hospital, all receiving thromboprophylaxis, underwent systematic ultrasonography of the internal jugular, and the upper and lower limbs veins every 7 days (± 1 day) after the admission; and, if negative, once-weekly until discharge or death. In case of suspected pulmonary embolism, a multidetector computed tomographic angiography was performed. The primary outcome was the proportion of any deep-vein thrombosis (DVT) and symptomatic pulmonary embolism in both groups. An extended blood coagulative test was performed as well. From March 4 to April 30, 2020, a total of 85 patients were investigated, 44 (52%) in MWs and 41 (48%) in the ICU. Despite thromboprophylaxis, VTE occurred in 12 patients in the MWs (27.3%) and 31 patients in the ICU (75.6%) with an odds ratio of 9.3 (95% confidence interval (CI) 3.5-24.5; P < 0.001). Multiple-site DVT occurred in 55.6% of patients (95% CI 39.6-70.5). Increased D-dimer levels significantly correlated with VTE (P = 0.001) and death (P = 0.015). Summarizing, patients with COVID-19 admitted to the MW or ICU showed a high frequency of venous thromboembolism, despite standard-dose or high-dose thromboprophylaxis. Whether thrombosis, particularly asymptomatic events, may play a role in the morbidity and mortality of patients with COVID-19 remain to be clarified., (© 2020 The Authors. Clinical and Translational Science published by Wiley Periodicals LLC on behalf of the American Society for Clinical Pharmacology and Therapeutics.)
- Published
- 2020
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32. Why Does COVID-19 Affect Patients with Spinal Cord Injury Milder? A Case-Control Study: Results from Two Observational Cohorts.
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Calvo E, Corbacho-Alonso N, Sastre-Oliva T, Nuñez E, Baena-Galan P, Hernandez-Fernandez G, Rodriguez-Cola M, Jimenez-Velasco I, Corrales FJ, Gambarrutta-Malfati C, Gutierrez-Henares F, Lopez-Dolado E, Gil-Agudo A, Vazquez J, Mourino-Alvarez L, and Barderas MG
- Abstract
The COVID-19 pandemic represents an unprecedented global challenge in this century. COVID-19 is a viral respiratory infection, yet the clinical characteristics of this infection differ in spinal cord injury patients from those observed in the general population. Cough and asthenia are the most frequent symptoms in this population. Moreover, infected spinal cord injury patients rarely present complications that require admission to an Intensive Care Unit, in contrast to the general population. Thus, there is a clear need to understand how COVID-19 affects spinal cord injury patients from a molecular perspective. Here, we employed an -omics strategy in order to identify variations in protein abundance in spinal cord injury patients with and without COVID-19. After a quantitative differential analysis using isobaric tags and mass spectrometry and a verification phase, we have found differences mainly related to coagulation and platelet activation. Our results suggest a key role of heparin in the response of spinal cord injury patients to COVID-19 infection, showing a significant correlation between these proteins and heparin dose. Although the number of patients is limited, these data may shed light on new therapeutic options to improve the management these patients and, possibly, those of the general population as well.
- Published
- 2020
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33. Clinical risk score to predict in-hospital mortality in COVID-19 patients: a retrospective cohort study.
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Fumagalli C, Rozzini R, Vannini M, Coccia F, Cesaroni G, Mazzeo F, Cola M, Bartoloni A, Fontanari P, Lavorini F, Marcucci R, Morettini A, Nozzoli C, Peris A, Pieralli F, Pini R, Poggesi L, Ungar A, Fumagalli S, and Marchionni N
- Subjects
- Aged, COVID-19, Female, Hospital Mortality, Hospitalization statistics & numerical data, Humans, Italy epidemiology, Male, Middle Aged, Prognosis, Respiration, Artificial statistics & numerical data, Retrospective Studies, SARS-CoV-2, Betacoronavirus isolation & purification, Coronavirus Infections blood, Coronavirus Infections diagnosis, Coronavirus Infections mortality, Coronavirus Infections physiopathology, Critical Care methods, Critical Care statistics & numerical data, Critical Pathways organization & administration, Critical Pathways standards, Pandemics, Pneumonia, Viral blood, Pneumonia, Viral diagnosis, Pneumonia, Viral mortality, Pneumonia, Viral physiopathology, Risk Assessment methods, Triage methods, Triage statistics & numerical data
- Abstract
Objectives: Several physiological abnormalities that develop during COVID-19 are associated with increased mortality. In the present study, we aimed to develop a clinical risk score to predict the in-hospital mortality in COVID-19 patients, based on a set of variables available soon after the hospitalisation triage., Setting: Retrospective cohort study of 516 patients consecutively admitted for COVID-19 to two Italian tertiary hospitals located in Northern and Central Italy were collected from 22 February 2020 (date of first admission) to 10 April 2020., Participants: Consecutive patients≥18 years admitted for COVID-19., Main Outcome Measures: Simple clinical and laboratory findings readily available after triage were compared by patients' survival status ('dead' vs 'alive'), with the objective of identifying baseline variables associated with mortality. These were used to build a COVID-19 in-hospital mortality risk score (COVID-19MRS)., Results: Mean age was 67±13 years (mean±SD), and 66.9% were male. Using Cox regression analysis, tertiles of increasing age (≥75, upper vs <62 years, lower: HR 7.92; p<0.001) and number of chronic diseases (≥4 vs 0-1: HR 2.09; p=0.007), respiratory rate (HR 1.04 per unit increase; p=0.001), PaO
2 /FiO2 (HR 0.995 per unit increase; p<0.001), serum creatinine (HR 1.34 per unit increase; p<0.001) and platelet count (HR 0.995 per unit increase; p=0.001) were predictors of mortality. All six predictors were used to build the COVID-19MRS (Area Under the Curve 0.90, 95% CI 0.87 to 0.93), which proved to be highly accurate in stratifying patients at low, intermediate and high risk of in-hospital death (p<0.001)., Conclusions: The COVID-19MRS is a rapid, operator-independent and inexpensive clinical tool that objectively predicts mortality in patients with COVID-19. The score could be helpful from triage to guide earlier assignment of COVID-19 patients to the most appropriate level of care., Competing Interests: Competing interests: None declared., (© Author(s) (or their employer(s)) 2020. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.)- Published
- 2020
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34. [Effectiveness of the implementation of clinical-epidemiological management during Covid-19 in a medium-long-stay hospital.]
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Ruiz Moruno AJ, Rodríguez Cola M, Jiménez Velasco I, Ruíz Delgado RM, and González Rubio A
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- Adult, Betacoronavirus, COVID-19, Female, Humans, Incidence, Intensive Care Units, Male, Prevalence, SARS-CoV-2, Spain, Coronavirus Infections prevention & control, Coronavirus Infections therapy, Hospitalization, Pandemics prevention & control, Patient Care methods, Pneumonia, Viral prevention & control, Pneumonia, Viral therapy
- Abstract
Objective: The effects of the Covid-19 health emergency have demonstrated the high vulnerability of people residing in medium and long-stay centers, with high mortality rates. Little data is available about contingency protocols to minimize the spread of the virus in these centers. The goal of this study was to describe the clinical and epidemiological features of patients affected by SARS-CoV-2 and the preventive and management measures adopted at the National Hospital for Paraplegics (Toledo, Castilla-La Mancha, Spain) to minimize the risk of transmission of Covid-19., Methods: A team of specialists in Preventive and Internal Medicine established a protocol for active surveillance, identification of suspected and confirmed cases, and follow-up of contacts. Also, a Unit for the care of confirmed cases was created with personnel specifically trained in Covid-19, to achieve better patient care and optimize the available resources. Descriptive statistical measures have been used to analyze the data., Results: The prevalence of Covid-19 was 12.2%, with a cumulative incidence of 8.2%. After the protocol was established, control of the disease was achieved without hospital transmission after its application. Due to the alarm generated at the start of the pandemic, up to 45% of the requested RT-PCRs did not meet the criteria of the Ministry of Health, all of which were negative. The clinical characteristics of our patients differed slightly from those observed in other studies published in the general population, with cough and asthenia being the most frequent symptoms, present in 69.2% and 38.5%, respectively. 100% of the infected patients did not present complications that required assistance in the Intensive Care Unit., Conclusions: With the application of preventive and organizational actions, we consider that we have presented a low incidence of those infected. The preparation of protocols and their supervision is essential for the rapid identification of cases and optimization of the tests requested. Despite being a medium and long-stay hospital, we have not presented any mortality or complications that required admission to the Intensive Care Unit., Competing Interests: Disclosure The authors report no conflicts of interest in this work.
- Published
- 2020
35. Antidepressant-Like Effect of Terpineol in an Inflammatory Model of Depression: Involvement of the Cannabinoid System and D2 Dopamine Receptor.
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Vieira G, Cavalli J, Gonçalves ECD, Braga SFP, Ferreira RS, Santos ARS, Cola M, Raposo NRB, Capasso R, and Dutra RC
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- Animals, Binding Sites, Depression etiology, Hindlimb Suspension adverse effects, Lipopolysaccharides toxicity, Male, Mice, Molecular Docking Simulation, Protein Binding, Receptors, Cannabinoid chemistry, Receptors, Cannabinoid metabolism, Receptors, Dopamine D2 chemistry, Receptors, Dopamine D2 metabolism, Anti-Inflammatory Agents therapeutic use, Antidepressive Agents therapeutic use, Cannabinoid Receptor Modulators therapeutic use, Depression drug therapy, Dopamine Agents therapeutic use, Monoterpenes therapeutic use
- Abstract
Depression has a multifactorial etiology that arises from environmental, psychological, genetic, and biological factors. Environmental stress and genetic factors acting through immunological and endocrine responses generate structural and functional changes in the brain, inducing neurogenesis and neurotransmission dysfunction. Terpineol, monoterpenoid alcohol, has shown immunomodulatory and neuroprotective effects, but there is no report about its antidepressant potential. Herein, we used a single lipopolysaccharide (LPS) injection to induce a depressive-like effect in the tail suspension test (TST) and the splash test (ST) for a preventive and therapeutic experimental schedule. Furthermore, we investigated the antidepressant-like mechanism of action of terpineol while using molecular and pharmacological approaches. Terpineol showed a coherent predicted binding mode mainly against CB1 and CB2 receptors and also against the D2 receptor during docking modeling analyses. The acute administration of terpineol produced the antidepressant-like effect, since it significantly reduced the immobility time in TST (100-200 mg/kg, p.o.) as compared to the control group. Moreover, terpineol showed an antidepressant-like effect in the preventive treatment that was blocked by a nonselective dopaminergic receptor antagonist (haloperidol), a selective dopamine D2 receptor antagonist (sulpiride), a selective CB1 cannabinoid receptor antagonist/inverse agonist (AM281), and a potent and selective CB2 cannabinoid receptor inverse agonist (AM630), but it was not blocked by a nonselective adenosine receptor antagonist (caffeine) or a β-adrenoceptor antagonist (propranolol). In summary, molecular docking suggests that CB1 and CB2 receptors are the most promising targets of terpineol action. Our data showed terpineol antidepressant-like modulation by CB1 and CB2 cannabinoid receptors and D2-dopaminergic receptors to further corroborate our molecular evidence.
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- 2020
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36. Clinical features of coronavirus disease 2019 (COVID-19) in a cohort of patients with disability due to spinal cord injury.
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Rodríguez-Cola M, Jiménez-Velasco I, Gutiérrez-Henares F, López-Dolado E, Gambarrutta-Malfatti C, Vargas-Baquero E, and Gil-Agudo Á
- Subjects
- Adult, Aged, COVID-19, Cohort Studies, Coronavirus Infections complications, Disabled Persons, Female, Humans, Male, Middle Aged, Pandemics, Pneumonia, Viral complications, Risk Factors, SARS-CoV-2, Spain, Betacoronavirus, Coronavirus Infections diagnosis, Pneumonia, Viral diagnosis, Spinal Cord Injuries complications
- Abstract
Study Design: Cohort study of patients with spinal cord injury (SCI)., Objectives: To describe the clinical and analytical features of a coronavirus disease 2019 (Covid-19) infected cohort with SCI to enable accurate diagnosis and to outline prevention measures., Setting: This study was conducted at the National Hospital for Paraplegics (Toledo, Spain)., Methods: A cohort analysis of seven patients with SCI infected by Covid-19 was performed. Diagnosis was confirmed with reverse transcriptase polymerase chain reaction (RT-PCR) of nasal exudate or sputum samples. Clinical, analytical, and radiographic findings were registered., Results: RT-PCR detected COVID-19 infection in all patients, affecting males and people with a cervical level of injury more often (five out of seven). The average delay for diagnostic confirmation was 4 days (interquartile range, 1-10). Fever was the most frequent symptom (six out of seven). The second most common symptom was asthenia (four out of seven), followed by dyspnea, cough, and expectoration (three out of seven for each symptom). The Modified Early Warning System score for Covid-19 severity rating was classified as severe in five out of seven cases. All but one patient showed radiological alterations evident in chest X-rays at the time of diagnosis. All patients recovered gradually., Conclusion: Our patients with SCI and Covid-19 infection exhibited fewer symptoms than the general population. Furthermore, they presented similar or greater clinical severity. The clinical evolution was not as pronounced as had been expected. This study recommends close supervision of the SCI population to detect early compatible signs and symptoms of Covid-19 infection.
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- 2020
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37. Towards improving primary care: Considerations on a Sicilian population-based survey.
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Manuli A, Maggio MG, De Cola M, Tripoli D, De Luca R, and Calabrò RS
- Abstract
Background: The healthcare reforms have led to the development of new primary care systems. These models allowed responding to people's needs but with problems in maintaining the relational continuity between the patient and therapist., Materials and Methods: We performed a survey on 12 May 2018, in Messina (Sicily, Italy), during an informational event. Participants were invited to fill in a self-reported Italian questionnaire composed of 12 multiple-choice questions, specifically created by the authors. The tool included the assessment of the social status, the presence of chronic diseases, preference in health care, and evaluation of the services offered in the territory., Results: As for the territorial services, we observed that the general practitioner (GP) was the most appreciated healthcare provider, followed by the nurse., Conclusions: We believe that nurses can represent the most appropriate healthcare figure to potentiate GP's patient management in primary territorial care., Competing Interests: There are no conflicts of interest., (Copyright: © 2019 Journal of Family Medicine and Primary Care.)
- Published
- 2019
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38. The Expression of the Chemokine CXCL14 Correlates with Several Aggressive Aspects of Glioblastoma and Promotes Key Properties of Glioblastoma Cells.
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Fazi B, Proserpio C, Galardi S, Annesi F, Cola M, Mangiola A, Michienzi A, and Ciafrè SA
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- Cell Line, Tumor, Glioblastoma metabolism, Glioblastoma physiopathology, Humans, Tumor Microenvironment, Cell Movement, Cell Proliferation, Chemokines, CXC genetics, Gene Expression Regulation, Neoplastic, Glioblastoma genetics
- Abstract
Glioblastoma (GBM) is a primary brain tumor whose prognosis is inevitably dismal, leading patients to death in about 15 months from diagnosis. Tumor cells in the mass of the neoplasm are in continuous exchange with cells of the stromal microenvironment, through the production of soluble molecules, among which chemokines play prominent roles. CXCL14 is a chemokine with a pro-tumor role in breast and prostate carcinoma, where it is secreted by cancer associated fibroblasts, and contributes to tumor growth and invasion. We previously observed that CXCL14 expression is higher in GBM tissues than in healthy white matter. Here, we study the effects of exogenously supplemented CXCL14 on key tumorigenic properties of human GBM cell lines. We show that CXCL14 enhances the migration ability and the proliferation of U87MG and LN229 GBM cell lines. None of these effects was affected by the use of AMD3100, an inhibitor of CXCR4 receptor, suggesting that the observed CXCL14 effects are not mediated by this receptor. We also provide evidence that CXCL14 enhances the sphere-forming ability of glioblastoma stem cells, considered the initiating cells, and is responsible for tumor onset, growth and recurrence. In support of our in vitro results, we present data from several GBM expression datasets, demonstrating that CXCL14 expression is inversely correlated with overall survival, that it is enriched at the leading edge of the tumors and in infiltrating tumor areas, and it characterizes mesenchymal and NON G-CIMP tumors, known to have a particularly bad prognosis. Overall, our results point to CXCL14 as a protumorigenic chemokine in GBM.
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- 2019
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39. What's in a name? A preliminary event-related potential study of response to name in preschool children with and without autism spectrum disorder.
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Thomas RP, Wang LAL, Guthrie W, Cola M, McCleery JP, Pandey J, Schultz RT, and Miller JS
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- Acoustic Stimulation methods, Auditory Perception physiology, Child Development physiology, Child, Preschool, Evoked Potentials, Auditory physiology, Female, Humans, Male, Names, Recognition, Psychology physiology, Autism Spectrum Disorder physiopathology, Evoked Potentials physiology
- Abstract
The ability to selectively respond to one's own name is important for social and language development, and is disrupted in atypically developing populations (e.g., autism spectrum disorder). Research with typically developing samples using event-related potentials (ERPs) has demonstrated that the subject's own name (SON) is differentiated from other stimuli at both early sensory and later cognitive stages of auditory processing. While neural indices of response to name have been researched extensively in adults, no such studies have been conducted with typically developing preschool children or children with autism spectrum disorder (ASD). The present study investigated ERP response to name in a sample of typically developing (TD) preschoolers (n = 19; mean age = 4.3 years) as well as a small, exploratory comparison group of preschoolers with ASD (n = 13; mean age = 4.4 years). TD preschoolers exhibited significantly greater negativity to SON over frontal regions than to an unfamiliar nonsense name, consistent with the adult SON negativity component. This component was present whether the name was spoken by a parent or an unfamiliar adult, suggesting that it reflects SON-specific processing rather than broad self-relevant information processing. Comparing preschoolers with ASD to the TD children revealed a significant SON negativity component across both groups. The amplitude of the SON negativity response was significantly correlated with social variables in the ASD group, though these correlations did not survive correction for multiple comparisons. This study is the first to demonstrate the presence of the SON component in preschool children with and without ASD., Competing Interests: The authors have declared that no competing interests exist.
- Published
- 2019
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40. Linguistic markers of autism in girls: evidence of a "blended phenotype" during storytelling.
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Boorse J, Cola M, Plate S, Yankowitz L, Pandey J, Schultz RT, and Parish-Morris J
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- Child, Child Development, Cognition, Female, Humans, Male, Phenotype, Sex Factors, Autistic Disorder psychology, Narration, Theory of Mind, Vocabulary
- Abstract
Background: Narrative abilities are linked to social impairment in autism spectrum disorder (ASD), such that reductions in words about cognitive processes (e.g., think , know ) are thought to reflect underlying deficits in social cognition, including Theory of Mind. However, research suggests that typically developing (TD) boys and girls tell narratives in sex-specific ways, including differential reliance on cognitive process words. Given that most studies of narration in ASD have been conducted in predominantly male samples, it is possible that prior results showing reduced cognitive processing language in ASD may not generalize to autistic girls. To answer this question, we measured the relative frequency of two kinds of words in stories told by autistic girls and boys: nouns (words that indicate object-oriented storytelling) and cognitive process words (words like think and know that indicate mentalizing or attention to other peoples' internal states)., Methods: One hundred two verbally fluent school-aged children [girls with ASD ( N = 21) and TD ( N = 19), and boys with ASD ( N = 41) and TD ( N = 21)] were matched on age, IQ, and maternal education. Children told a story from a sequence of pictures, and word frequencies (nouns, cognitive process words) were compared., Results: Autistic children of both sexes consistently produced a greater number of nouns than TD controls, indicating object-focused storytelling. There were no sex differences in cognitive process word use in the TD group, but autistic girls produced significantly more cognitive process words than autistic boys, despite comparable autism symptom severity. Thus, autistic girls showed a unique narrative profile that overlapped with autistic boys and typical girls/boys. Noun use correlated significantly with parent reports of social symptom severity in all groups, but cognitive process word use correlated with social ability in boys only., Conclusion: This study extends prior research on autistic children's storytelling by measuring sex differences in the narratives of a relatively large, well-matched sample of children with and without ASD. Importantly, prior research showing that autistic children use fewer cognitive process words is true for boys only, while object-focused language is a sex-neutral linguistic marker of ASD. These findings suggest that sex-sensitive screening and diagnostic methods-preferably using objective metrics like natural language processing-may be helpful for identifying autistic girls, and could guide the development of future personalized treatment strategies., Competing Interests: The Institutional Review Board of the Children’s Hospital of Philadelphia provided approval and oversight for this study. All participants provided consent (parental consent for participants under age 18) and assent when possible.Not applicable.The authors declare that they have no competing interests.Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
- Published
- 2019
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41. Evaluation of systemic microvascular reactivity in adults with congenital heart disease.
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Marino P, de Oliveira Lopes G, Pereira Borges J, Carolina Terra Cola M, Arkader Kopiler D, and Tibirica E
- Subjects
- Adult, Capillaries physiopathology, Cross-Sectional Studies, Exercise Test, Female, Heart Defects, Congenital diagnosis, Humans, Male, Middle Aged, Nitroprusside pharmacology, Retrospective Studies, Vasodilator Agents pharmacology, Young Adult, Endothelium, Vascular physiopathology, Heart Defects, Congenital physiopathology, Microcirculation physiology, Regional Blood Flow physiology, Vasodilation physiology
- Abstract
Objective: Adults with congenital heart disease share some features with those with chronic heart failure. Although microvascular endothelial dysfunction has been described in chronic heart failure, evaluation of the microcirculation in adults with congenital heart disease is lacking. The present study aimed to investigate systemic microvascular reactivity in adults with congenital heart disease., Interventions: The patients initially underwent cardiopulmonary exercise testing. Then, the cutaneous microvascular reactivity was evaluated in these patients using a laser speckle contrast imaging system coupled with skin iontophoresis of endothelial-dependent (acetylcholine) or -independent (sodium nitroprusside) vasodilators and postocclusive reactive hyperemia (PORH) and compared with healthy controls matched for age and sex., Results: Thirty-one patients and 29 healthy controls were evaluated. The basal microvascular flow (P < .0001) and area under the curve in response to acetylcholine (P < .0001) were higher in the patients than in the healthy volunteers. The increase in cutaneous vascular conductance in response to sodium nitroprusside was reduced in the patients compared to the healthy volunteers (P = .0031). No difference in the microvascular response was observed during postocclusive reactive hyperemia. The basal microvascular flow of patients with peak oxygen consumption below 16.0 mL kg
-1 min-1 was superior to that of patients with values greater than 16.0 mL kg-1 min-1 (P = .0046)., Conclusions: Adults with congenital heart disease present a higher baseline cutaneous microvascular blood flow than healthy controls and do not present systemic microvascular endothelial dysfunction. Nevertheless, endothelium-independent microvascular reactivity is blunted, suggesting an altered vascular smooth muscle response or vascular structural alterations. Finally, patients with a lower functional capacity presented a greater microvascular basal blood flow than subjects with a higher functional capacity., (© 2018 Wiley Periodicals, Inc.)- Published
- 2018
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42. Effectiveness of direct-acting antiviral therapy in patients with a HCV/HIV coinfection. A multicenter cohort study.
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Rial-Crestelo D, Rodríguez-Cola M, González-Gasca FJ, Geijo-Martínez P, Belinchón-Moya O, Martínez-Alfaro E, Mateos-Rodríguez F, Barberá JR, Yzusqui M, Casallo S, García M, Espinosa-Gimeno A, and Torralba M
- Subjects
- Adult, Aged, Antiretroviral Therapy, Highly Active, Cohort Studies, Coinfection, Endpoint Determination, Female, HIV Infections virology, Hepatitis C virology, Humans, Male, Middle Aged, Treatment Outcome, Viral Load, Antiviral Agents therapeutic use, HIV Infections complications, HIV Infections drug therapy, Hepatitis C complications, Hepatitis C drug therapy
- Abstract
Introduction: The effectiveness of direct-acting antiviral (DAA) agents has been demonstrated in clinical trials both in patients with mono and coinfections. The goal of the study was to analyze the effectiveness and toxicity of this therapy in real-life patients with a HIV/HCV coinfection and to identify variables that are associated with an unfavorable outcome., Methods: This was a multicenter ambispective study in a cohort of coinfected patients. Data were collected from eight centers in Castilla-La Mancha from 2014 to 2016. An intent-to-treat analysis was performed and any loss to follow-up, treatment withdrawal or toxicity was considered as a failure., Results: A total of 229 patients were included with a median age of 49.6 years and the majority were male (83%). Fewer than 10% had a detectable HIV-related viral load (VL). The most prevalent HCV genotype was 1 (65.1%). Fifty percent had cirrhotic liver disease and 65% had over 800,000 copies/ml of HCV VL. The global sustained viral response (SVR) was reached by 91.7% of cases. The most commonly used DAA regimen was sofosbuvir/ledipasvir. Ribavirin was included in 52% of regimens, 65.9% of cases completed 12-week regimens and 30% completed 24-week schemes. There were 19 therapy failures. No differences were observed between the various DAA strategies used. No independent predictor was found for SVR., Conclusions: HCV treatment in coinfected patients is highly successful in terms of SVR rate in the real-life setting and toxicity is exceptional. We identified no specific predictors of an unfavorable outcome.
- Published
- 2018
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43. Effects of Simvastatin Beyond Dyslipidemia: Exploring Its Antinociceptive Action in an Animal Model of Complex Regional Pain Syndrome-Type I.
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Vieira G, Cavalli J, Gonçalves ECD, Gonçalves TR, Laurindo LR, Cola M, and Dutra RC
- Abstract
Simvastatin is a lipid-lowering agent that blocks the production of cholesterol through inhibition of 3-hydroxy-methyl-glutaryl coenzyme A (HMG-CoA) reductase. In addition, recent evidence has suggested its anti-inflammatory and antinociceptive actions during inflammatory and pain disorders. Herein, we investigated the effects of simvastatin in an animal model of complex regional pain syndrome-type I, and its underlying mechanisms. Chronic post-ischemia pain (CPIP) was induced by ischemia and reperfusion (IR) injury of the left hind paw. Our findings showed that simvastatin inhibited mechanical hyperalgesia induced by CPIP model in single and repeated treatment schedules, respectively; however simvastatin did not alter inflammatory signs during CPIP model. The mechanisms underlying those actions are related to modulation of transient receptor potential (TRP) channels, especially TRMP8. Moreover, simvastatin oral treatment was able to reduce the nociception induced by acidified saline [an acid-sensing ion channels (ASICs) activator] and bradykinin (BK) stimulus, but not by TRPA1, TRPV1 or prostaglandin-E2 (PGE2). Relevantly, the antinociceptive effects of simvastatin did not seem to be associated with modulation of the descending pain circuits, especially noradrenergic, serotoninergic and dopaminergic systems. These results indicate that simvastatin consistently inhibits mechanical hyperalgesia during neuropathic and inflammatory disorders, possibly by modulating the ascending pain signaling (TRPM8/ASIC/BK pathways expressed in the primary sensory neuron). Thus, simvastatin open-up new standpoint in the development of innovative analgesic drugs for treatment of persistent pain, including CRPS-I.
- Published
- 2017
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44. Assessments of global drivers of vaccine hesitancy in 2014-Looking beyond safety concerns.
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Marti M, de Cola M, MacDonald NE, Dumolard L, and Duclos P
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- Female, Humans, Male, Attitude to Health, Immunization, Surveys and Questionnaires, Vaccines
- Abstract
Vaccine hesitancy has become the focus of growing attention and concern globally despite overwhelming evidence of the value of vaccines in preventing disease and saving the lives of millions of individuals every year. Measuring vaccine hesitancy and its determinants worldwide is important in order to understand the scope of the problem and for the development of evidence-based targeted strategies to reduce hesitancy. Two indicators to assess vaccine hesitancy were developed to capture its nature and scope at the national and subnational level to collect data in 2014: 1) The top 3 reasons for not accepting vaccines according to the national schedule in the past year and whether the response was opinion- or assessment-based and 2) Whether an assessment (or measurement) of the level of confidence in vaccination had taken place at national or subnational level in the previous 5 years. The most frequently cited reasons for vaccine hesitancy globally related to (1) the risk-benefit of vaccines, (2) knowledge and awareness issues, (3) religious, cultural, gender or socio-economic factors. Major issues were fear of side effects, distrust in vaccination and lack of information on immunization or immunization services. The analysis revealed that 29% of all countries had done an assessment of the level of confidence in their country, suggesting that vaccine confidence was an issue of importance. Monitoring vaccine hesitancy is critical because of its influence on the success of immunization programs. To our knowledge, the proposed indicators provide the first global snapshot of reasons driving vaccine hesitancy and depicting its widespread nature, as well as the extent of assessments conducted by countries.
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- 2017
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45. Meta-Analysis of the Effect of Dietary Sodium Restriction with or without Concomitant Renin-Angiotensin-Aldosterone System-Inhibiting Treatment on Albuminuria.
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D'Elia L, Rossi G, Schiano di Cola M, Savino I, Galletti F, and Strazzullo P
- Subjects
- Albuminuria blood, Albuminuria drug therapy, Angiotensin Receptor Antagonists therapeutic use, Angiotensin-Converting Enzyme Inhibitors therapeutic use, Antihypertensive Agents therapeutic use, Creatinine blood, Humans, Hypertension drug therapy, Randomized Controlled Trials as Topic, Renin-Angiotensin System drug effects, Sodium, Dietary administration & dosage, Albuminuria diet therapy, Diet, Sodium-Restricted
- Abstract
Background and Objectives: Urinary albumin excretion and/or albumin to creatinine ratio are associated with CKD and higher risk of cardiovascular events. Several studies investigated the effect of reduced dietary sodium intake on urinary albumin excretion and/or albumin to creatinine ratio in adult patient populations, but the majority was inconclusive because of insufficient statistical power. A meta-analysis of the randomized, controlled trials available could overcome this problem and lead to more definitive conclusions., Design, Setting, Participants, & Measurements: A systematic search of the online databases available (from 1996 to October of 2014) was conducted of randomized, controlled trials that expressed urinary albumin excretion or albumin to creatinine ratio as the difference between the effects of two different sodium intake regimens. For each study, the mean difference and 95% confidence intervals were pooled using a random effect model. Heterogeneity, publication bias, subgroup, and meta-regression analyses were performed., Results: Eleven studies met the predefined inclusion criteria and provided 23 cohorts with 516 participants and 1-6 weeks of follow-up time. In the pooled analysis, an average reduction in sodium intake of 92 mmol/d was associated with a 32.1% (95% confidence interval, -44.3 to -18.8) reduction in urinary albumin excretion. The effect of sodium restriction was higher in the cohorts including patients on concomitant renin-angiotensin-aldosterone system-blocking therapy, in the studies with intervention lasting at least 2 weeks, and among participants with evidence of kidney damage. A greater reduction of urinary albumin excretion was associated with a higher decrease in BP during the intervention. The analysis of changes in albumin to creatinine ratio provided similar results., Conclusions: This meta-analysis indicates that sodium intake reduction markedly reduces albumin excretion, more so during concomitant renin-angiotensin-aldosterone system-blocking therapy and among patients with kidney damage., (Copyright © 2015 by the American Society of Nephrology.)
- Published
- 2015
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46. Healing, antioxidant and cytoprotective properties of Indigofera truxillensis in different models of gastric ulcer in rats.
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Luiz-Ferreira A, Cola M, Barbastefano V, de-Faria FM, Almeida AB, Farias-Silva E, Calvo TR, Hiruma-Lima CA, Vilegas W, and Souza-Brito AR
- Subjects
- Animals, Anti-Ulcer Agents administration & dosage, Anti-Ulcer Agents chemistry, Antioxidants administration & dosage, Antioxidants chemistry, Disease Models, Animal, Ethanol adverse effects, Gastric Juice metabolism, Gastric Mucosa drug effects, Gastric Mucosa metabolism, Gastric Mucosa pathology, Glutathione Peroxidase metabolism, Glutathione Reductase metabolism, Male, Metabolome, Metabolomics, Nitric Oxide metabolism, Plant Extracts administration & dosage, Plant Extracts chemistry, Prostaglandins biosynthesis, Protective Agents chemistry, Protective Agents pharmacology, Rats, Reperfusion Injury metabolism, Reperfusion Injury pathology, Secondary Metabolism, Stomach Ulcer chemically induced, Stomach Ulcer metabolism, Sulfhydryl Compounds metabolism, Sulfhydryl Compounds pharmacology, Superoxide Dismutase metabolism, Anti-Ulcer Agents pharmacology, Antioxidants pharmacology, Indigofera chemistry, Plant Extracts pharmacology, Stomach Ulcer drug therapy, Stomach Ulcer pathology, Wound Healing drug effects
- Abstract
The present study evaluated the antiulcerogenic activity and mechanisms of the aqueous (AqF 100 mg/kg) and ethyl acetate (AcF 50 mg/kg) fractions from Indigofera truxillensis leaves. This dose was selected to assess its activity on ulcer healing and its action on gastric acid and mucus secretion, prostaglandin production and antioxidant enzyme activity (superoxide dismutase (SOD), glutathione peroxidase (GSH-Px) and glutathione reductase (GSH-Rd)). Gastric ulcer was induced by absolute ethanol. Antisecretory action, mucus and prostaglandin production, healing and antioxidant enzyme activities were evaluated for both fractions. AqF and AcF significantly inhibited the gastric mucosal damage caused by ethanol. This effect was statistically significant at 100 and 50 mg/kg compared with the vehicle. Neither fraction interfered with gastric secretion. AcF increased the PGE(2) production, and both fractions increased mucus production. l-NAME did not alter the gastroprotection exerted by the fractions, but N-ethylmaleimide attenuated only AcF. In the ischemia/reperfusion model both fractions inhibited the mucosal damage. AcF increased SOD, GSH-Px and GSH-Rd activity, but AqF increased only SOD and GSH-Px. In the acetic acid-induced ulcer model AcF only accelerated ulcer healing. These results showed that Indigofera truxillensis acted as a gastroprotective agent, stimulating protective factors and antioxidants enzymes.
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- 2012
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47. Anti-ulcerogenic mechanisms of the sesquiterpene lactone onopordopicrin-enriched fraction from Arctium lappa L. (Asteraceae): role of somatostatin, gastrin, and endogenous sulfhydryls and nitric oxide.
- Author
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de Almeida AB, Luiz-Ferreira A, Cola M, Di Pietro Magri L, Batista LM, de Paiva JA, Trigo JR, and Souza-Brito AR
- Subjects
- Animals, Anti-Ulcer Agents pharmacology, Bethanechol metabolism, Ethanol adverse effects, Ethylmaleimide, Gas Chromatography-Mass Spectrometry, Gastric Juice drug effects, Gastric Mucosa drug effects, Indomethacin adverse effects, Indomethacin metabolism, Male, Medicine, Traditional, Plant Extracts pharmacology, Plant Leaves chemistry, Rats, Rats, Wistar, Arctium chemistry, Gastrins metabolism, Lactones pharmacology, Nitric Oxide metabolism, Sesquiterpenes pharmacology, Somatostatin metabolism, Sulfhydryl Compounds metabolism
- Abstract
Arctium lappa L. has been used in folk medicine as a diuretic, depurative, and digestive stimulant and in dermatological conditions. The mechanisms involved in the anti-ulcerogenic activity of the sesquiterpene onopordopicrin (ONP)-enriched fraction (termed the ONP fraction), obtained from A. lappa leaves, were studied. The gastroprotective mechanism of the ONP fraction was evaluated in experimental in vivo models in rodents, mimicking this disease in humans. ONP fraction (50 mg/kg, p.o.) significantly inhibited the mucosal injury induced by ethanol/HCl solution (75%), indomethacin/bethanecol (68.9%), and stress (58.3%). When the ONP fraction was investigated in pylorus ligature, it did not induce alteration in the gastric volume but did modify the pH and total acid concentration of gastric juice. ONP fraction significantly increased serum somatostatin levels (82.1±4.1 vs. control group 12.7±4 pmol/L) and decreased serum gastrin levels (62.6±6.04 vs. control group 361.5±8.2 μU/mL). Mucus production was not significantly altered by the ONP fraction. Gastroprotection by the ONP fraction was completely inhibited by N-ethylmaleimide treatment and did not modify the effect in the animals pretreated with l-N(G)-nitroarginine methyl ester. These results suggest an antisecretory mechanism involved with the antiulcerogenic effect of the ONP fraction. However, only endogenous sulfhydryls play an important role in gastroprotection of the ONP fraction.
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- 2012
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48. β-Caryophyllene inhibits dextran sulfate sodium-induced colitis in mice through CB2 receptor activation and PPARγ pathway.
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Bento AF, Marcon R, Dutra RC, Claudino RF, Cola M, Leite DF, and Calixto JB
- Subjects
- Animals, Caspase 3 metabolism, Caspase Inhibitors, Claudin-4, Colitis chemically induced, Colon drug effects, Colon enzymology, Colon pathology, Cyclic AMP Response Element-Binding Protein metabolism, Cytokines metabolism, Dextran Sulfate, Extracellular Signal-Regulated MAP Kinases metabolism, I-kappa B Kinase metabolism, Inflammation Mediators metabolism, Ki-67 Antigen metabolism, Lipopolysaccharides pharmacology, Macrophage Activation drug effects, Macrophages drug effects, Macrophages metabolism, Membrane Proteins metabolism, Mice, NF-kappa B metabolism, Oxazolone, PPAR gamma antagonists & inhibitors, Polycyclic Sesquiterpenes, Receptor, Cannabinoid, CB2 antagonists & inhibitors, Colitis metabolism, Colitis prevention & control, PPAR gamma metabolism, Receptor, Cannabinoid, CB2 metabolism, Sesquiterpenes pharmacology, Signal Transduction drug effects
- Abstract
Cannabinoid receptor 2 (CB2) activation is suggested to trigger the peroxisome proliferator-activated receptor-γ (PPARγ) pathway, and agonists of both receptors improve colitis. Recently, the plant metabolite (E)-β-caryophyllene (BCP) was shown to bind to and activate CB2. In this study, we examined the anti-inflammatory effect of BCP in dextran sulfate sodium (DSS)-induced colitis and analyzed whether this effect was mediated by CB2 and PPARγ. Oral treatment with BCP reduced disease activity, colonic macro- and microscopic damage, myeloperoxidase and N-acetylglucosaminidase activities, and levels and mRNA expression of colonic tumor necrosis factor-α, IL-1β, interferon-γ, and keratinocyte-derived chemokine. BCP treatment also inhibited the activation of extracellular signal-regulated kinase 1/2, nuclear factor κB, IκB-kinase α/β, cAMP response element binding and the expression of caspase-3 and Ki-67. Moreover, BCP enhanced IL-4 levels and forkhead box P3 mRNA expression in the mouse colon and reduced cytokine levels (tumor necrosis factor-α, keratinocyte-derived chemokine, and macrophage-inflammatory protein-2) in a culture of macrophages stimulated with lipopolysaccharide. The use of the CB2 antagonist AM630 or the PPARγ antagonist GW9662 significantly reversed the protective effect of BCP. Confirming our results, AM630 reversed the beneficial effect of BCP on pro-inflammatory cytokine expression in IEC-6 cells. These results demonstrate that the anti-inflammatory effect of BCP involves CB2 and the PPARγ pathway and suggest BCP as a possible therapy for the treatment of inflammatory bowel disease., (Copyright © 2011 American Society for Investigative Pathology. Published by Elsevier Inc. All rights reserved.)
- Published
- 2011
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49. Mechanisms of the gastric antiulcerogenic activity of Anacardium humile St. Hil on ethanol-induced acute gastric mucosal injury in rats.
- Author
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Luiz-Ferreira A, Almeida AC, Cola M, Barbastefano V, Almeida AB, Batista LM, Farias-Silva E, Pellizzon CH, Hiruma-Lima CA, Santos LC, Vilegas W, and Brito AR
- Subjects
- Animals, Male, Molecular Structure, Rats, Rats, Wistar, Anacardium chemistry, Anti-Ulcer Agents therapeutic use, Ethanol adverse effects, Gastric Mucosa drug effects, Gastric Mucosa pathology, Plant Extracts chemistry, Plant Extracts therapeutic use, Stomach Ulcer chemically induced, Stomach Ulcer drug therapy, Stomach Ulcer prevention & control
- Abstract
Leaves and bark infusions Anacardium humile St. Hil. (Anacardiaceae), known as in Brazil as "cajuzinho do cerrado", have been used in folk medicine as an alternative treatment for ulcers and gastritis. This study evaluated the gastroprotective activity of an ethyl acetate extract of the leaves of A. humile (AcF) and the mechanism involved in this gastroprotection. Pretreatment concentrations (50, 100, 200 mg x kg⁻¹) were administered by gavage. Following a 60 min. period, all the rats were orally administered 1 mL of absolute ethanol. One hour after the administration of ethanol, all groups were sacrificed, and the gastric ulcer index was calculated. Prostaglandin PGE₂ concentration, gastric adherent mucous, and the participation of nitric oxide (NO) and sulfhydryl compounds in the gastroprotection process were also analyzed using the most effective tested dose (50 mg x kg⁻¹). A histological study of the glandular stomach for the evaluation of the epithelial damage and mucus content was also performed. AcF significantly reduced the gastric damage produced by ethanol. This effect was statistically significant for the 50 mg x kg⁻¹ group compared to control. Also, it significantly increased the PGE₂ (by 10-fold) and mucous production, while pretreatment with NG-nitro-L-arginine methyl ester (L-NAME) or N-ethylmaleimide (NEM) completely abolished the gastroprotection. AcF has a protective effect against ethanol, and this effect, might be due to the augmentation of the protective mechanisms of mucosa.
- Published
- 2010
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50. Age-associated changes in mouse oocytes during postovulatory in vitro culture: possible role for meiotic kinases and survival factor BCL2.
- Author
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Tatone C, Carbone MC, Gallo R, Delle Monache S, Di Cola M, Alesse E, and Amicarelli F
- Subjects
- Age Factors, Animals, CDC2 Protein Kinase antagonists & inhibitors, CDC2 Protein Kinase metabolism, Cells, Cultured, Cyclin B metabolism, Cyclin B1, DNA Fragmentation, Enzyme Inhibitors pharmacology, Female, Meiosis, Mesothelin, Mice, Mice, Inbred Strains, Mitogen-Activated Protein Kinases antagonists & inhibitors, Multiprotein Complexes, Oocytes drug effects, Proto-Oncogene Proteins c-bcl-2 genetics, Cellular Senescence, Luteal Phase physiology, Mitogen-Activated Protein Kinases metabolism, Oocytes physiology, Proto-Oncogene Proteins c-bcl-2 metabolism
- Abstract
To elucidate molecular mechanisms underlying oocyte senescence, we investigated whether oocytes from female mice of advanced reproductive age exhibit a precocious postovulatory aging that, in turn, may be responsible for the precocious activation of an apoptotic program. During a 9-h in vitro culture, the frequency of oocytes showing MII aberrations, spontaneous activation, and cellular fragmentation increased in old oocytes (P < 0.05), whereas it did not change in the young group. In old oocytes, the activities of MPF (a complex of the cyclin-dependent kinase cdc2 and cyclin B1) and MAPK (mitogen-activated protein kinase) decreased precociously, showing a first drop as early as 3 h after the beginning of in vitro culture (P < 0.05). Immunoblotting and immunocytochemical analysis revealed that, in oocytes of the old group, reduction of BCL2 expression at protein level occurred earlier than in the young group (P < 0.05) and was not associated to the loss of BCL2 transcripts detected by RT-PCR. These changes are followed by an abrupt increase of the rate of TUNEL-positive oocytes after 24 h of culture to a value of 67% +/- 6%. Exposure of young oocytes to 20 microM roscovitine or 20 microM U0126, specific inhibitors of MPF and MAPK, resulted in the decreased percentage of oocytes showing positive immunostaining for BCL2 and in an increased rate of DNA fragmentation. Present results suggest that the developmental competence of oocytes ovulated by aging mice may be negatively influenced by a downregulation of MPF and MAPK activities that in turn induces the activation of a proapoptotic signaling pathway.
- Published
- 2006
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