517 results on '"P. Marenco"'
Search Results
2. Multisensory temporal processing in schizophrenia and bipolar disorder: implications for psychosis
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Amadeo, Maria Bianca, Escelsior, Andrea, Esposito, Davide, Inuggi, Alberto, Versaggi, Silvio, Marenco, Giacomo, Massalha, Yara, Bertolasi, Jessica, Pereira da Silva, Beatriz, Amore, Mario, Serafini, Gianluca, and Gori, Monica
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- 2024
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3. Retrolental cohesive ophthalmic viscoelastic injection for severe subluxated cataracts: a prospective study
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Iannetta, Danilo, Romano, Vito, Valsecchi, Nicola, Grendele, Arianna, Febbraro, Simone, Marenco, Marco, Moramarco, Antonio, Lambiase, Alessandro, and Fontana, Luigi
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- 2024
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4. Machine-learning-aided method for optimizing beam selection and update period in 5G networks and beyond
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Marenco, Ludwing, Hupalo, Luiz E., Andrade, Naylson F., and de Figueiredo, Felipe A. P.
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- 2024
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5. Cortico-striatal differences in the epigenome in attention-deficit/ hyperactivity disorder
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Shastri, Gauri G., Sudre, Gustavo, Ahn, Kwangmi, Jung, Benjamin, Kolachana, Bhaskar, Auluck, Pavan K., Elnitski, Laura, Marenco, Stefano, and Shaw, Philip
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- 2024
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6. Litter production and leaf nutrient concentration and remobilization in response to climate seasonality in the central Amazon
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Marenco, Ricardo Antonio, Antezana-Vera, Saul Alfredo, Dias, Daniela Pereira, and Cândido, Luiz Antonio
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- 2024
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7. Multisensory temporal processing in schizophrenia and bipolar disorder: implications for psychosis
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Maria Bianca Amadeo, Andrea Escelsior, Davide Esposito, Alberto Inuggi, Silvio Versaggi, Giacomo Marenco, Yara Massalha, Jessica Bertolasi, Beatriz Pereira da Silva, Mario Amore, Gianluca Serafini, and Monica Gori
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Psychiatry ,RC435-571 - Abstract
Abstract Structuring sensory events in time is essential for interacting with the environment and producing adaptive behaviors. Over the past years, the microstructure of temporality received increasing attention, recognized as a fundamental factor influencing cognitive, affective, and social abilities, whose alteration can underlie the etiopathogeneses of some clinical symptoms in psychiatric disorders. The present research investigated multisensory temporal processing in individuals with schizophrenia (N = 21), bipolar disorder (N = 20) and healthy controls (N = 21) in order to explore a plausible link between multisensory alterations in the temporal order of events and the psychopathological dimensions underlying psychosis. We asked participants to temporally order audio-tactile, visual-tactile, and audio-visual stimuli, and we administered different psychopathological scales to explore depressive, manic and psychotic symptoms. Results demonstrated that both subjects with schizophrenia and bipolar disorder are less precise in temporal order judgment independently of the sensory modalities involved. Interestingly, reduced precision in temporal processing of patients is positively associated with the presence and severity of positive symptoms. Our findings support the hypothesis that low-level sensory alterations in temporal structure may contribute to the emergence of clinical symptoms such as delusions, hallucinations, and disorganized behaviors.
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- 2024
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8. Retrolental cohesive ophthalmic viscoelastic injection for severe subluxated cataracts: a prospective study
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Danilo Iannetta, Vito Romano, Nicola Valsecchi, Arianna Grendele, Simone Febbraro, Marco Marenco, Antonio Moramarco, Alessandro Lambiase, and Luigi Fontana
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Complicated cataract surgery ,Subluxated cataract ,Cataract surgery ,Surgical technique ,Prospective study ,Ophthalmology ,RE1-994 - Abstract
Abstract Background To assess anatomical and functional outcomes of retrolental cohesive ophthalmic viscoelastic injection (“Viscolift technique”) in patients with severely subluxated cataracts. Methods In the present prospective study, we included patients older than 18 years with severely subluxated cataracts and phacodonesis. Full medical history was obtained at the baseline ophthalmological assessment. A single 25-gauge valved trocar was inserted 4 mm from the limbus and a 27G angled cannula was introduced through the trocar into the retrolental space, while cohesive viscoelastic was progressively injected, in order to center and elevate the cataract to facilitate capsulorhexis. After complete phacoemulsification, a 3-piece intraocular lens (IOL) with a scleral fixated Cionni ring or FIL-SSF scleral fixated IOL was implanted. Patients follow-up interval was 6 months after surgery. Results Thirteen eyes of 13 patients were enrolled in the study, mean age was 61.5 ± 9.4 years and 53.8% were females. The “Viscolift technique” resulted in centered and more stable cataracts in all cases (100%). After complete phacoemulsification, 61.5% of patients were implanted with a 3-piece IOL with Cionni ring, and 38.5% with a FIL-SSF scleral fixated IOL after complete 25G vitrectomy. Mean BCVA improved from 0.5 ± 0.1 LogMar (20/63 Snellen) to 0.1 ± 0.1 LogMar (20/25 Snellen) (p
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- 2024
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9. Machine-learning-aided method for optimizing beam selection and update period in 5G networks and beyond
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Ludwing Marenco, Luiz E. Hupalo, Naylson F. Andrade, and Felipe A. P. de Figueiredo
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Medicine ,Science - Abstract
Abstract Finding the optimal beam pair and update time in 5G systems operating at mmWave frequencies is time-intensive and resource-demanding. This intricate procedure calls for the proposal of more intelligent approaches. Therefore, this work proposes a machine learning-based method for optimizing beam pair selection and its update time. The method is structured around three main modules: spatial characterization of beam pair service areas, training of a machine learning model using collected beam pair data, and an algorithm that uses the decision function of the trained model to compute the optimal update time for beam pairs based on the spatial position and velocity of user equipment. When the machine learning model is deployed in a network with a single gNB equipped with a $$8\times 8$$ 8 × 8 UPA and one UE equipped with a $$1\times 2$$ 1 × 2 UPA in an mmWave scenario simulated in NS3, improvements in SINR and throughput up to $$407\%$$ 407 % , were observed. Improvements are gathered because of a reduction of $$85.7\%$$ 85.7 % in beam pair selections because of an increase of approximately $$1543\%$$ 1543 % in the effective time between successive beam pair searches. This method could offer real-time optimization of the beam pair procedures in 5G networks and beyond.
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- 2024
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10. Toxicodermia asociada al uso de furosemida: reporte de caso
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Dadier Antonio Arroyo, Oswaldo Enrique Ávila Polanco, Daniela Lizeth Acosta Cardozo, Natalia Marcela Balaguera Carvajal, Leonardo Fabio León Marenco, María Angela Castellanos Gutierrez, Luis Fernando Henao Navarro, Orlando Reinoso Gutiérrez, and María Isabel Pulgar Emiliani
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Furosemida ,hipersensibilidad ,toxicodermia ,sulfonamidas ,Pharmacy and materia medica ,RS1-441 - Abstract
Introducción: La furosemida es un diurético de asa perteneciente al grupo de las sulfonamidas, y su principal indicación es el tratamiento de la sobrecarga de volumen y edemas. Debido a su mecanismo de acción, puede desencadenar diversas reacciones adversas, siendo una de las menos comunes las toxicodermias o dermatosis inducidas por fármacos, que pueden afectar la piel, mucosas o anexos cutáneos. Estas reacciones representan entre el 1 y el 3% de las dermatosis en el ámbito hospitalario y el 2,6% en el ámbito ambulatorio. Aunque su diagnóstico se basa principalmente en criterios clínicos, presentan un gran desafío debido a su aparición variable. Presentación del caso: se describe un caso clínico de un paciente masculino que presentó un cuadro clínico caracterizado por lesiones eritematosas generalizadas, pruriginosas, asociadas a edema bipalpebral y escrotal, y un único episodio febril con una temperatura máxima de 40°C. Estas manifestaciones comenzaron después de iniciar el tratamiento con furosemida oral. Los estudios paraclínicos mostraron un hemograma con leucocitosis a expensas de eosinofilia y alteraciones en el perfil hepático. Tras la suspensión de la medicación, se observó una mejoría paulatina de los síntomas. Discusión: este caso resalta que la furosemida, como fármaco tipo sulfonamida puede inducir reacciones de hipersensibilidad. El manejo adecuado de estos casos, que incluye la suspensión del fármaco y el uso de corticosteroides, es fundamental para evitar complicaciones. Dado que la evidencia es limitada, es esencial seguir documentando casos clínicos similares para comprender mejor el perfil de seguridad de la furosemida.
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- 2024
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11. A near-global multiyear climate data record of the fine-mode and coarse-mode components of atmospheric pure dust
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E. Proestakis, A. Gkikas, T. Georgiou, A. Kampouri, E. Drakaki, C. L. Ryder, F. Marenco, E. Marinou, and V. Amiridis
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Environmental engineering ,TA170-171 ,Earthwork. Foundations ,TA715-787 - Abstract
A new four-dimensional, multiyear, and near-global climate data record of the fine-mode (submicrometer in terms of diameter) and coarse-mode (supermicrometer in terms of diameter) components of atmospheric pure dust is presented. The separation of the two modes of dust in detected atmospheric dust layers is based on a combination of (1) the total pure-dust product provided by the well-established European Space Agency (ESA) “LIdar climatology of Vertical Aerosol Structure” (LIVAS) database and (2) the coarse-mode component of pure dust provided by the first step of the two-step POlarization LIdar PHOtometer Networking (POLIPHON) technique, developed in the framework of the European Aerosol Research Lidar Network (EARLINET). Accordingly, the fine-mode component of pure dust is extracted as the residual between the LIVAS total pure dust and the coarse-mode component of pure dust. Intermediate steps involve the implementation of regionally dependent lidar-derived lidar ratio values and AErosol RObotic NETwork (AERONET)-based climatological extinction-to-volume conversion factors, facilitating conversion of dust backscatter into extinction and subsequently extinction into mass concentration. The decoupling scheme is applied to observations from the Cloud–Aerosol Lidar and Infrared Pathfinder Satellite Observations (CALIPSO) at 532 nm. The final products consist of the fine mode and coarse mode of atmospheric pure dust, quality-assured profiles of backscatter coefficient at 532 nm, extinction coefficient at 532 nm, and mass concentration for each of the two components. The datasets are established primarily with the original L2 horizontal (5 km) and vertical (60 m) resolution of the Cloud–Aerosol Lidar with Orthogonal Polarization (CALIOP) along the CALIPSO orbit path and secondly in averaged profiles of seasonal–temporal resolution, 1° × 1° spatial resolution, and the original vertical resolution of CALIPSO, focusing on the latitudinal band extending between 70° S and 70° N and covering more than 15 years of Earth observations (June 2006–December 2021). The quality of the CALIPSO-based fine-mode and coarse-mode dust products is assessed through the use of AERONET fine-mode and coarse-mode aerosol optical thickness (AOT) interpolated to 532 nm and the AERosol properties – Dust (AER-D) campaign airborne in situ particle size distributions (PSDs) as reference datasets during atmospheric conditions characterized by dust presence. The near-global fine-mode and coarse-mode pure-dust climate data record is considered unique with respect to a wide range of potential applications, including climatological, time series, and trend analysis over extensive geographical domains and temporal periods, validation of atmospheric dust models and reanalysis datasets, assimilation activities, and investigation of the role of airborne dust in radiation and air quality.
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- 2024
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12. Sub-segmental pulmonary thromboembolism in a pregnant woman with generalized lupus erythematosus, triple-negative antiphospholipid syndrome, and protein C deficiency. A case report
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Arlin Montoya Rodríguez, MD, Mario Mayorga Duarte, MD, Sayonara Sandino López, MD, Víctor Rosales Obregón, MD, and Mario Enmanuel López Marenco, MD
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Thrombophilic disorders ,Antiphospholipid síndrome ,Protein S deficiency ,Pregnancy complications ,Pulmonary thromboembolism (PTE) ,Medical physics. Medical radiology. Nuclear medicine ,R895-920 - Abstract
Autoimmune diseases and thrombophilic disorders, notably antiphospholipid syndrome (APS) and protein S deficiency, present a formidable challenge in pregnancy, substantially increasing the risk of thromboembolic complications by up to 20%. Pulmonary thromboembolism (PTE), characterized by a significantly higher maternal mortality rate, is of particular concern.APS, defined by the presence of antiphospholipid antibodies, emerges as a pivotal risk factor for PTE during pregnancy, especially in women exhibiting triple negativity. Concurrently, protein S deficiency further amplifies vulnerability to thromboembolic events, establishing a high-risk scenario for pregnant individuals.In a case involving a 29-year-old pregnant woman with a history of generalized lupus erythematosus, triple-negative antiphospholipid syndrome, and protein S deficiency, sudden-onset dyspnea prompted thorough investigation. Despite her complex medical history, a multidisciplinary approach led to the accurate diagnosis and successful management of subsegmental pulmonary thromboembolism, ensuring the well-being of both mother and fetus.Effectively managing PTE during pregnancy demands a comprehensive, multidisciplinary approach involving collaboration among obstetricians, internists, rheumatologists, and hematologists. Accurate diagnosis, tailored anticoagulation strategies, and continuous monitoring stand as indispensable pillars for maternal and fetal well-being.
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- 2024
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13. Autoimmune Hepatitis Management: Recent Advances and Future Prospects
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Rebeca Sierra, Ana Marenco-Flores, Marwan Alsaqa, Romelia Barba, Marcela Cuellar-Lobo, Carla Barberan, and Leandro Sierra
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autoimmune hepatitis ,immunosuppressive agents ,biochemical remission ,induction therapy ,non-responder management ,Medicine (General) ,R5-920 - Abstract
Autoimmune hepatitis (AIH) is a varied inflammatory chronic liver disease. AIH’s prevalence varies and has increased recently. Diagnosis involves the discovery of histologic features following liver biopsy and serologic testing. Clinical features vary, and up to 40% of patients may be asymptomatic. Evaluating thiopurine methyltransferase (TMPM) activity before treatment is crucial for an optimal response. The primary treatment goal is biochemical remission, normalized serum IgG, and liver enzymes. Induction therapy typically involves azathioprine and corticosteroids. Close monitoring of liver function tests and serum immunoglobulin levels is essential. Medications can be tapered after achieving biochemical remission. Liver transplantation may be required for refractory disease or cirrhosis. Further therapeutic approaches are needed, particularly for non-responders to first-line treatments.
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- 2024
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14. Reduction of peripersonal comfort space correlate with eating disorder symptoms in young adolescents: a network analysis approach
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Beatriz Pereira Da Silva, Andrea Escelsior, Monica Biggio, Alessio Zizzi, Martino Belvederi Murri, Riccardo Guglielmo, Alberto Inuggi, Federico Delfante, Giacomo Marenco, Mario Amore, and Gianluca Serafini
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peripersonal space ,network analysis ,adolescents ,psychopathology ,eating disorders ,Psychology ,BF1-990 - Abstract
BackgroundPeripersonal Space (PS) is represented as the immediate area surrounding an individual. The extent of PS changes in relation to several factors, including emotional states, type of relationship or psychopathology. Attachment anxiety has an impact on the social adaptability of peripersonal space and anxiety and fear are associated with an expansion of peripersonal space, possibly serving as a mechanism of self-protection. Peripersonal space appears to be intricately linked to various psychiatric conditions like anxiety disorders and converging evidence suggests that social maladjustment may predict or exacerbate eating disorder symptoms expression.MethodsFifty-eight healthy adolescents (38F, 20M) performed a comfort distance estimation task to assess peripersonal space. The Adolescent/Adult Sensory Profile (AASP) was used to assess sensory profiles and the SAFA protocol to investigate psychopathological aspects. Data was analysed using Network Analysis, estimating a Gaussian Graphical Models with a Bayesian approach.ResultsWe found that the task related to comfort estimation distance demonstrated a correlation with the visual scale of the Adolescent/Adult Sensory Profile (AASP). Additionally, a correlation was observed with the Eating Disorder scale of the SAFA protocol. The touch scale also was negatively correlated with Eating disorder symptoms but not with the comfort estimation task.ConclusionOur results demonstrate a relation between peripersonal space and eating disorder symptoms in healthy adolescents in line with previous findings in adults with eating disorders diagnosis. These findings suggest that socio-emotional difficulties may be possible precursors or reinforce for the development of an eating disorder symptoms.
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- 2024
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15. Impact of alemtuzumab-mediated lymphocyte depletion on SIV reservoir establishment and persistence.
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Benjamin Varco-Merth, Morgan Chaunzwa, Derick M Duell, Alejandra Marenco, William Goodwin, Rachel Dannay, Michael Nekorchuk, Danica Shao, Kathleen Busman-Sahay, Christine M Fennessey, Lorna Silipino, Michael Hull, William J Bosche, Randy Fast, Kelli Oswald, Rebecca Shoemaker, Rachele Bochart, Rhonda MacAllister, Caralyn S Labriola, Jeremy V Smedley, Michael K Axthelm, Miles P Davenport, Paul T Edlefsen, Jacob D Estes, Brandon F Keele, Jeffrey D Lifson, Sharon R Lewin, Louis J Picker, and Afam A Okoye
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Immunologic diseases. Allergy ,RC581-607 ,Biology (General) ,QH301-705.5 - Abstract
Persistence of the rebound-competent viral reservoir (RCVR) within the CD4+ T cell compartment of people living with HIV remains a major barrier to HIV cure. Here, we determined the effects of the pan-lymphocyte-depleting monoclonal antibody (mAb) alemtuzumab on the RCVR in SIVmac239-infected rhesus macaques (RM) receiving antiretroviral therapy (ART). Alemtuzumab administered during chronic ART or at the time of ART initiation induced >95% depletion of circulating CD4+ T cells in peripheral blood and substantial CD4+ T cell depletion in lymph nodes. However, treatment was followed by proliferation and reconstitution of CD4+ T cells in blood, and despite ongoing ART, levels of cell-associated SIV DNA in blood and lymphoid tissues were not substantially different between alemtuzumab-treated and control RM after immune cell reconstitution, irrespective of the time of alemtuzumab treatment. Upon ART cessation, 19 of 22 alemtuzumab-treated RM and 13 of 13 controls rebounded with no difference in the time to rebound between treatment groups. Time to rebound and reactivation rate was associated with plasma viral loads (pVLs) at time of ART initiation, suggesting lymphocyte depletion had no durable impact on the RCVR. However, 3 alemtuzumab-treated RM that had lowest levels of pre-ART viremia, failed to rebound after ART withdrawal, in contrast to controls with similar levels of SIV replication. These observations suggest that alemtuzumab therapy has little to no ability to reduce well-established RCVRs but may facilitate RCVR destabilization when pre-ART virus levels are particularly low.
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- 2024
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16. Electrochemical Determination of Fentanyl Using Carbon Nanofiber-Modified Electrodes
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Armando J. Marenco, Rajesh G. Pillai, Kenneth D. Harris, Nora W. C. Chan, and Abebaw B. Jemere
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Chemistry ,QD1-999 - Published
- 2024
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17. Cortico-striatal differences in the epigenome in attention-deficit/ hyperactivity disorder
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Gauri G. Shastri, Gustavo Sudre, Kwangmi Ahn, Benjamin Jung, Bhaskar Kolachana, Pavan K. Auluck, Laura Elnitski, Stefano Marenco, and Philip Shaw
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Neurosciences. Biological psychiatry. Neuropsychiatry ,RC321-571 - Abstract
Abstract While epigenetic modifications have been implicated in ADHD through studies of peripheral tissue, to date there has been no examination of the epigenome of the brain in the disorder. To address this gap, we mapped the methylome of the caudate nucleus and anterior cingulate cortex in post-mortem tissue from fifty-eight individuals with or without ADHD. While no single probe showed adjusted significance in differential methylation, several differentially methylated regions emerged. These regions implicated genes involved in developmental processes including neurogenesis and the differentiation of oligodendrocytes and glial cells. We demonstrate a significant association between differentially methylated genes in the caudate and genes implicated by GWAS not only in ADHD but also in autistic spectrum, obsessive compulsive and bipolar affective disorders through GWAS. Using transcriptomic data available on the same subjects, we found modest correlations between the methylation and expression of genes. In conclusion, this study of the cortico-striatal methylome points to gene and gene pathways involved in neurodevelopment, consistent with studies of common and rare genetic variation, as well as the post-mortem transcriptome in ADHD.
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- 2024
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18. Lidar depolarization characterization using a reference system
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A. Papetta, F. Marenco, M. Kezoudi, R.-E. Mamouri, A. Nisantzi, H. Baars, I. E. Popovici, P. Goloub, S. Victori, and J. Sciare
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Environmental engineering ,TA170-171 ,Earthwork. Foundations ,TA715-787 - Abstract
In this study, we present a new approach for the determination of polarization parameters of the Nicosia Cimel CE376 lidar system, using the PollyXT in Limassol as a reference instrument. The method is applied retrospectively to the measurements obtained during the 2021 Cyprus Fall Campaign. Lidar depolarization measurements represent valuable information for aerosol typing and for the quantification of some specific aerosol types such as dust and volcanic ash. An accurate characterization is required for quality measurements and to remove instrumental artifacts. In this article, we use the PollyXT, a widely used depolarization lidar, as our reference to evaluate the CE376 system's gain ratio and channel cross-talk. We use observations of transported dust from desert regions for this approach, with layers in the free troposphere. Above the boundary layer and the highest terrain elevation of the region, we can expect that, for long-range transport of aerosols, local effects should not affect the aerosol mixture enough for us to expect similar depolarization properties at the two stations (separated by ∼ 60 km). Algebraic equations are used to derive polarization parameters from the comparison of the volume depolarization ratio measured by the two systems. The applied methodology offers a promising opportunity to evaluate the polarization parameters of a lidar system, in cases where a priori knowledge of the cross-talk parameters is not available, or to transfer the polarization parameters from one system to the other.
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- 2024
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19. Influence of socioeconomic factors on liver transplant survival outcomes in patients with autoimmune liver disease in the United States
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Leandro Sierra, Ana Marenco-Flores, Romelia Barba, Daniela Goyes, Bryan Ferrigno, Wilfor Diaz, Esli Medina-Morales, Behnam Saberi, Vilas R Patwardhan, and Alan Bonder
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Specialties of internal medicine ,RC581-951 - Abstract
Introduction and Objectives: Autoimmune liver diseases (AILDs): autoimmune hepatitis (AIH), primary biliary cholangitis (PBC), and primary sclerosing cholangitis (PSC) have different survival outcomes after liver transplant (LT). Outcomes are influenced by factors including disease burden, medical comorbidities, and socioeconomic variables. Materials and Methods: Using the United Network for Organ Sharing database (UNOS), we identified 13,702 patients with AILDs listed for LT between 2002 and 2021. Outcomes of interest were waitlist removal, post-LT patient survival, and post- LT graft survival. A stepwise multivariate analysis was performed adjusting for transplant recipient gender, race, diabetes mellitus, model for end-stage liver disease (MELD) score, and additional social determinants including the presence of education, reliance on public insurance, working for income, and U.S. citizenship status. Results: Lack of college education and having public insurance increased the risk of waitlist removal (HR, 1.13; 95 % CI, 1.05–1.23, and HR, 1.09; 95 % CI, 1.00–1.18; respectively), and negatively influenced post-LT patient survival (HR, 1.16; 95 % CI, 1.06–1.26, and HR, 1.15; 95 % CI, 1.06–1.25; respectively) and graft survival (HR, 1.13; 95 % CI, 1.05–1.23, and HR, 1.15; 95 % CI, 1.06–1.25; respectively). Not working for income proved to have the greatest detrimental impact on both patient survival (HR, 1.41; 95 % CI, 1.24–1.6) and graft survival (HR, 1.21; 95 % CI, 1.09–1.35). Conclusions: Our study highlights that lack of college education and public insurance have a detrimental impact on waitlist mortality, patient survival, and graft survival. Not working for income negatively affects post-LT survival outcomes. Not having U.S. citizenship does not affect survival outcomes in AILDs patients.
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- 2024
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20. Sherry wine industry by-product as potential biosorbent for the removal of Cr(VI) from aqueous medium
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Sánchez-Ponce, L., Granado-Castro, M. D., Casanueva-Marenco, M. J., Galindo-Riaño, M. D., and Díaz-de-Alba, M.
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- 2023
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21. Comparison among three predictive models for cancer-associated thromboembolism in a hispanic population
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Ramos-Esquivel, Allan, Marenco-Flores, Ana, Hernández-Romero, Gabriel, Céspedes-Calvo, Ana, and Mora-Hidalgo, Raquel
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- 2023
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22. A hybrid heuristic for the rectilinear picture compression problem
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Koch, Ivo and Marenco, Javier
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- 2023
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23. Implementing a multi-user framework for vehicle routing problems: a chronicle
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Casté, Javier, Koch, Ivo, and Marenco, Javier
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- 2023
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24. Predictive factors for post operative seizures following meningioma resection in patients without preoperative seizures: a multicenter retrospective analysis
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McKevitt, Chase, Marenco-Hillembrand, Lina, Bamimore, Michael, Chandler, Rosemary, Otamendi-Lopez, Andrea, Almeida, Joao Paulo, Quiñones-Hinojosa, Alfredo, and Chaichana, Kaisorn L.
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- 2023
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25. High-intensity interval training is not superior to continuous aerobic training in reducing body fat: A systematic review and meta-analysis of randomized clinical trials
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Ana Marenco Kramer, Jocelito Bijoldo Martins, Patricia Caetano de Oliveira, Alexandre Machado Lehnen, and Gustavo Waclawovsky
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Exercise training ,Excess weight ,DEXA ,Body composition ,Sports ,GV557-1198.995 - Abstract
Background/Objective: Guidelines on obesity management reinforce regular exercise to reduce body fat. Exercise modalities, including high-intensity interval training (HIIT), appear to produce a similar effect to continuous aerobic training (CAT) on body fat. However, they have not addressed the chronic effect of HIIT vs. CAT on body fat assessed by dual energy X-ray absorptiometry (DEXA). Thus, we compared the effectiveness of CAT vs. HIIT protocols on body fat (absolute or relative) (%BF) and abdominal visceral fat reduction, assessed by DEXA, in adults with overweight and obesity. Methods: We conducted a systematic review and meta-analysis of randomized clinical trials (RCTs) including both female or male adults with excess body weight. We performed searches in the databases MEDLINE (PubMed), EMBASE, Scopus, LILACS, Web of Science and Cochrane. Results: In our analysis (11 RCTs), we found no greater benefit on %BF of HIIT vs. CAT (MD –0.55%, 95% CI –1.42 to 0.31; p = 0.209). As for abdominal visceral fat, no training modality was superior (SMD: −0.05, 95% CI –0.29 to 0.19; p = 0.997). Regarding secondary outcomes (body weight, BMI, VO2 max, glycemic and lipid profiles), HIIT shows greater benefit than CAT in increasing VO2 max and fasting blood glucose and reducing total cholesterol. Conclusion: HIIT is not superior to CAT in reducing %BF or abdominal visceral fat in individuals characterized by excess weight. However, HIIT showed beneficial effects on cardiorespiratory fitness, total cholesterol and fasting blood glucose when compared to CAT.
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- 2023
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26. Safety and Efficacy of Atezolizumab/Bevacizumab in Patients with Hepatocellular Carcinoma and Impaired Liver Function: A Systematic Review and Meta-Analysis
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Andrea Pasta, Francesco Calabrese, Ariel Jaffe, Sara Labanca, Simona Marenco, Giulia Pieri, Maria Corina Plaz Torres, Mario Strazzabosco, and Edoardo G. Giannini
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survival ,benefit ,cirrhosis ,systemic treatment ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Background: Safety and outcome of atezolizumab/bevacizumab in Child-Pugh B patients with hepatocellular carcinoma (HCC) have not been completely characterized. Objectives: In this study, we aimed at addressing safety and efficacy of atezolizumab/bevacizumab in Child-Pugh B patients by reviewing the available data and analyzing them by meta-analysis. Methods: We compared the safety and efficacy of atezolizumab/becavizumab treatment in patients with unresectable HCC and various degrees of liver dysfunction. A total of 8 retrospective, non-randomized, cohort studies were included in this meta-analysis, for a total of 1,071 Child-Pugh A and 225 Child-Pugh B patients. The albumin-bilirubin (ALBI) grade was also used to assess liver function, when available. Results: Grade ≥3 adverse events were observed in 11.8% of Child-Pugh class A and 26.8% class B patients (p = 0.0001), with an odds ratio (OR) of 0.43 (confidence interval [CI] 0.21–0.90; p = 0.02). Progression-free survival (PFS) at both 6 months (4.90 ± 2.08 vs. 4.75 ± 2.08 months; p = 0.0004) and 12 months (8.83 ± 2.32 vs. 7.26 ± 2.33 months; p = 0.002) was lower in Child-Pugh class B patients. A trend toward a higher objective response rate (ORR) was observed in Child-Pugh class A patients (219/856, 25.6%) as compared to Child-Pugh class B patients (25/138, 18.1%; p = 0.070), while the probability of obtaining an ORR was significantly greater in Child-Pugh A patients (OR 1.79, CI 1.12–2.86; p = 0.02). Median overall survival (OS) was 16.8 ± 2.0 and 6.8 ± 3.2 months in Child-Pugh A and B patients, respectively (mean difference 9.06 months, CI 7.01–11.1, p < 0.0001). Lastly, OS was longer in patients with ALBI grades 1–2 than in those with grade 3 (8.3 ± 11.4 vs. 3.3 ± 5.0 months, p = 0.0008). Conclusions: Oncological efficacy of atezolizumab/bevacizumab is moderate in Child-Pugh class B patients, and the shorter PFS and OS associated with the greater likelihood of experiencing treatment-related adverse events observed in these patients suggest great caution and individualization of treatment, possibly with the support of the ALBI grade.
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- 2023
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27. Supervised machine learning to validate a novel scoring system for the prediction of disease remission of functional pituitary adenomas following transsphenoidal surgery
- Author
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Chase McKevitt, Ellie Gabriel, Lina Marenco-Hillembrand, Andrea Otamendi-Lopez, Suren Jeevaratnam, Joao Paulo Almeida, Susan Samson, and Kaisorn L. Chaichana
- Subjects
Medicine ,Science - Abstract
Abstract Functional pituitary adenomas (FPAs) are associated with hormonal hypersecretion resulting in systemic endocrinopathies and increased mortality. The heterogenous composition of the FPA population has made modeling predictive factors of postoperative disease remission a challenge. Here, we aim to define a novel scoring system predictive of disease remission following transsphenoidal surgery (TSS) for FPAs and validate our process using supervised machine learning (SML). 392 patients with FPAs treated at one of the three Mayo Clinic campuses were retrospectively reviewed. Variables found significant on multivariate analysis were incorporated into our novel Pit-SCHEME score. The Pit-SCHEME score with a cut-off value ≥ 6 achieved a sensitivity of 86% and positive likelihood ratio of 2.88. In SML models, without the Pit-SCHEME score, the k-nearest neighbor (KNN) model achieved the highest accuracy at 75.6%. An increase in model sensitivity was achieved with inclusion of the Pit-SCHEME score with the linear discriminant analysis (LDA) model achieving an accuracy of 86.9%, which suggests the Pit-SCHEME score is the variable of most importance for prediction of postoperative disease remission. Ultimately, these results support the potential clinical utility of the Pit-SCHEME score and its prospective future for aiding in the perioperative decision making in patients with FPAs.
- Published
- 2023
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28. Focal Muscle Vibration (fMV) for Post-Stroke Motor Recovery: Multisite Neuroplasticity Induction, Timing of Intervention, Clinical Approaches, and Prospects from a Narrative Review
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Alessandro Viganò, Claudia Celletti, Giada Giuliani, Tommaso B. Jannini, Francesco Marenco, Ilaria Maestrini, Rosaceleste Zumpano, Edoardo Vicenzini, Marta Altieri, Filippo Camerota, Vittorio Di Piero, and Massimiliano Toscano
- Subjects
stroke ,focal muscle vibration (fMV) ,repetitive muscle vibration (rMV) ,non-invasive brain stimulation (NIBS) ,neuroplasticity ,adaptive plasticity ,Physics ,QC1-999 - Abstract
Despite newly available therapies for acute stroke and innovative prevention strategies, stroke remains the third leading cause of disability-adjusted life-years (DALYs) lost worldwide, mostly because more than half of stroke survivors aged 65 and over exhibit an incomplete functional recovery of the paretic limb. Given that a repeated sensory input is one of the most effective modulators of cortical motor and somatosensory structures, focal muscle vibration (fMV) is gaining growing interest as a safe, well-tolerated, and non-invasive brain stimulation technique to promote motor recovery after stroke with a long-lasting and clinically relevant improvement in strength, step symmetry, gait, and kinematics parameters. In this narrative review, we first summarize the structural (neural plasticity) and functional changes (network relearning) triggered by the stroke lesion and carried out at a brain and spinal cord level in an attempt to recover from the loss of function. Then, we will focus on the fMV’s plasticity-based mechanisms reporting evidence of a possible concurrently acting multisite plasticity induced by fMV. Finally, to understand what the most effective fMV rehabilitation protocol could be, we will report the most recent evidence regarding the different clinical approaches and timing of the fMV treatment, the related open issues, and prospects.
- Published
- 2023
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29. El cirujano general en las urgencias hepatobiliares en Colombia desde la visión de los expertos: un estudio cualitativo
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Laura Peña-González, Luis Carlos Domínguez-Torres, Neil Valentín Vega-Peña, and Catalina Marenco-Aguilar
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cirugía general ,educación de postgrado en medicina ,entrenamiento simulado ,enfermedades de las vías biliares ,procedimientos quirúrgicos del sistema biliar ,tratamiento de urgencia ,Surgery ,RD1-811 - Abstract
Introducción. El manejo perioperatorio de las urgencias hepatobiliares por parte del cirujano general es una competencia esperada y se considera un reto por su relativa frecuencia, impacto en la salud del individuo y la economía, así como las implicaciones en el ejercicio clínico confiable y de alta calidad. Se desconocen los aspectos formales de la educación en cirugía hepatobiliar para el cirujano general en Colombia. El objetivo del presente estudio fue explorar la perspectiva de los cirujanos hepatobiliares sobre esta problemática. Métodos. Se realizó un estudio cualitativo, mediante entrevistas semiestructuradas con 14 especialistas en cirugía hepatobiliar colombianos, en donde se exploraron los desafíos del entrenamiento, el tiempo y las características de una rotación, la evaluación de la confiabilidad, el número de procedimientos y el rol de la simulación. Se hizo un análisis temático de la información. Resultados. Los expertos mencionaron la importancia de la rotación obligatoria por cirugía hepatobiliar para los cirujanos en formación. El tiempo ideal es de tres meses, en el último año de residencia, en centros especializados, con exposición activa y bajo supervisión. Conclusiones. Por las características epidemiológicas del país y la frecuencia de enfermedades hepatobiliares que requieren tratamiento quirúrgico, es necesario que el cirujano general cuente con una formación sólida en este campo durante la residencia. El presente estudio informa sobre las características ideales del entrenamiento en este campo desde la visión de los expertos colombianos.
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- 2024
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30. Early antiretroviral therapy in SIV-infected rhesus macaques reveals a multiphasic, saturable dynamic accumulation of the rebound competent viral reservoir
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Brandon F. Keele, Afam A. Okoye, Christine M. Fennessey, Benjamin Varco-Merth, Taina T. Immonen, Emek Kose, Andrew Conchas, Mykola Pinkevych, Leslie Lipkey, Laura Newman, Agatha Macairan, Marjorie Bosche, William J. Bosche, Brian Berkemeier, Randy Fast, Mike Hull, Kelli Oswald, Rebecca Shoemaker, Lorna Silipino, Robert J. Gorelick, Derick Duell, Alejandra Marenco, William Brantley, Jeremy Smedley, Michael Axthelm, Miles P. Davenport, Jeffrey D. Lifson, and Louis J. Picker
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Immunologic diseases. Allergy ,RC581-607 ,Biology (General) ,QH301-705.5 - Published
- 2024
31. Oncoplastic and reconstructive surgery in SENONETWORK Italian breast centers: lights and shadows
- Author
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Matteo Ghilli, Andrea Vittorio Emanuele Lisa, Marzia Salgarello, Giovanni Papa, Mario Rietjens, Secondo Folli, Annalisa Curcio, Guglielmo Ferrari, Francesco Caruso, Vittorio Altomare, Daniele Friedman, Maria Carmen De Santis, Fiorenza De Rose, Bruno Meduri, Francesca De Felice, Lorenza Marino, Francesca Cucciarelli, Stefania Montemezzi, Pietro Panizza, Paolo Belli, Francesca Caumo, Valeriano Vinci, Giorgio De Santis, Marco Klinger, Manuela Roncella, Francesco Abbonante, Ginevra Lamanna, Augusto Lombardi, Silvio Vischi, Lorenzo Orzalesi, Giovanni Angiolucci, Samantha Bozzo, Laura Pizzorno, Bettina Ballardini, Maggiorino Barbero, Leonardo Barellini, Claudio Battaglia, Luisa Reggiani, Caterina Santi, Nicoletta Biglio, Marina Bortul, Paolo Burelli, Massimo Busani, Roberta Cabula, Katia Cagossi, Vito Maria Fontanarosa, Francesca Catalano, Carla Cedolini, Luigi Ciuffreda, Fabio Corsi, Olindo Custodero, Stefano Mori, Roy De Vita, Loredana Defilippi, Samantha Marcuzzi, Stefano Drago, Giovanni Battista, Loredana Burgoa, Paolo Cristofolini, Giovanna Romanucci, Andrea Loreti, Valerio Prosperi, Paolo Carcoforo, Patrizia Fulvia Franzini, Patrizia Frittelli, Giuseppe Perniciaro, Daniele Generali, Monica Giordano, Giovanazzi Riccardo, Simona Grossi, Alessandra Huscher, Giuseppe La Torre, Gianfranco Lolli, Carla Magni, Stefano Mancini, Lorenzo Galli, Alba Di Leone, Samuele Massarut, Alberto Massocco, Monica Cramarossa, Graziano Meneghini, Luca Fabiocchi, Anna Maria Miglietta, Francesco Millo, Antonella Ciabattoni, Francesca Pellini, Marco Moschetta, Antonino Musolino, Dante Palli, Giulia Pagura, Mariagrazia Pieraccini, Davide Marenco, Romano Polato, Maria Renne, Cosmo Maurizio Ressa, Fabio Ricci, Raffaella Ridolfo, Francesca Angela Rovera, Francesco Barberini, Marina Vinciguerra, Marco Furci, Maria Sciamannini, Daniela Gianquinto, Silvia Petrucci, Angelica Della Valle, Pietra Stancampiano, Andrea Lippi, Giovanni Tazzioli, Davide Lombardi, Martino Trunfio, Luca Valieri, Carlo Vecchio, Paolo Veronesi, and Gretha Grilz
- Subjects
Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Published
- 2024
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32. Supervised machine learning to validate a novel scoring system for the prediction of disease remission of functional pituitary adenomas following transsphenoidal surgery
- Author
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McKevitt, Chase, Gabriel, Ellie, Marenco-Hillembrand, Lina, Otamendi-Lopez, Andrea, Jeevaratnam, Suren, Almeida, Joao Paulo, Samson, Susan, and Chaichana, Kaisorn L.
- Published
- 2023
- Full Text
- View/download PDF
33. Antipsychotic drug use complicates assessment of gene expression changes associated with schizophrenia
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Schulmann, Anton, Marenco, Stefano, Vawter, Marquis P., Akula, Nirmala, Limon, Agenor, Mandal, Ajeet, Auluck, Pavan K., Patel, Yash, Lipska, Barbara K., and McMahon, Francis J.
- Published
- 2023
- Full Text
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34. Polygenic scores for psychiatric disorders in a diverse postmortem brain tissue cohort
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Duncan, Laramie, Shen, Hanyang, Schulmann, Anton, Li, Tayden, Kolachana, Bhaskar, Mandal, Ajeet, Feng, Ningping, Auluck, Pavan, and Marenco, Stefano
- Published
- 2023
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- View/download PDF
35. Improvements in iridium target chemistry
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Marenco, Athena M., Bond, Evelyn M., Rusev, Gencho, and Bredeweg, Todd A.
- Published
- 2023
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36. Mapping the cortico-striatal transcriptome in attention deficit hyperactivity disorder
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Sudre, Gustavo, Gildea, Derek E., Shastri, Gauri G., Sharp, Wendy, Jung, Benjamin, Xu, Qing, Auluck, Pavan K., Elnitski, Laura, Baxevanis, Andreas D., Marenco, Stefano, and Shaw, Philip
- Published
- 2023
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37. Uso de cannabis y su vínculo con eventos cardiovasculares
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Samuel Vargas-Chico, Erika Delgado-Mora, Dilia Aparicio-Marenco, and Neyder Contreras-Puentes
- Subjects
Cannabis. Enfermedades Cardiovasculares. Cannabinoides. ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
El Cannabis sativa reporta más de 500 compuestos cannabinoides, lo cual ha alcanzado más de 192 millones de consumidores en el mundo. Su actividad en los receptores cannabinoides tipo 1 (CB1) y tipo 2 (CB2) está involucrada en diferentes actividades biológicas, incluyendo su implicación cardiovascular. Reconocer el impacto del uso de cannabis en el desarrollo de alteraciones cardiovasculares en adultos. Se realizó una revisión sistemática mediante la guía PRISMA durante 2017-2023, empleando los repositorios: ScienceDirect, PubMed/MEDLINE y EBSCO. Se emplearon las palabras clave “Cannabis” y “cardiovascular diseases”. Finalmente, se realizó una evaluación del riesgo de sesgo mediante Critical Appraisal Skills Programme. Se obtuvieron 831 artículos, a los cuales se les aplicaron criterios de inclusión y exclusión, obteniendo siete estudios definitivos publicados en los últimos cinco años. Adicionalmente, esta revisión señala una dualidad en los efectos cardiovasculares del cannabis, que pueden depender de la forma de consumo y potenciales metabolitos. Algunos estudios sugieren efectos protectores en la progresión vascular, mientras otros relacionan su consumo con riesgos cardiovasculares, como arritmias y arteriosclerosis. La evidencia es limitada y contradictoria, y se destaca la necesidad de estudios longitudinales para entender la relación causal con los eventos cardiovasculares.
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- 2024
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38. Sudden Visual Loss After Vitreoretinal Surgery: A Case Report
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Agostino Salvatore Vaiano, Fabio Garavelli, Antonio Greco, Riccardo Merli, Alessandro De Filippis, Andrea Greco, and Maria Marenco
- Subjects
Ophthalmology ,RE1-994 - Abstract
A 51-year-old male underwent vitrectomy with retrobulbar anesthesia for retinal detachment. Post surgery, he experienced systemic hypotension which normalized after 3 h. The day after, he complained of a central scotoma in the operated eye. Intraocular pressure was normal, but fundus examination revealed hemorrhages and whitening along the papillomacular bundle and macula, with additional whitening in the upper midperipheral region. Multimodal imaging confirmed branch retinal vein, artery, and cilioretinal artery occlusion. Further examination revealed mild-to-moderate obstructive sleep apnea syndrome. Vascular occlusions are potential complications of vitreoretinal surgery, warranting thorough preoperative assessment for underlying risk factors, even if causative mechanism is still unknown.
- Published
- 2024
- Full Text
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39. Allergic Contact Dermatitis Reaction to Permanent Tattoo Containing Paraphenylenediamine: A Case Report
- Author
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Eliot Parascandolo, Samuel Puglisi, Miguel Marenco, and Gregory Puglisi
- Subjects
Immunologic diseases. Allergy ,RC581-607 - Abstract
Paraphenylenediamine (PPD) is a well-known culprit allergen in the literature and clinical practice. Although this has been described in temporary tattoos, the definite implication of PPD in permanent tattoos has not been described. We report a patient who developed severe allergic contact dermatitis (ACD) requiring skin grafting after receiving a permanent tattoo with ink containing PPD. A 30-year-old female with a past history of atopic dermatitis and psoriasis presented with a 2-week history of cutaneous reaction to a recent tattoo. The patient noticed inflammation and irritation of the tattoo site the day after administration. The patient was previously identified on patch testing to have a PPD allergy after evaluation for dermatitis after hair dye application. Following the tattoo placement, she applied soap and bacitracin cream which she had used several years prior on a similar tattoo. On presentation 2 weeks later, she was found to have a deep ulcerated plaque with an indurated border encompassing the area of the tattoo. She was referred to the emergency department and admitted for treatment, ultimately requiring debridement and skin grafting. The patient obtained the safety data sheets for the tattoo inks which revealed PPD as an ingredient in every color. We believe this is the first confirmed case of PPD being implicated as the causative agent for ACD to a permanent tattoo. Tattoo ink is unregulated, and formulas are proprietary which makes safe practice difficult for patients with sensitivities. We advocate for consistent ingredient labeling, regulation, and transparency within the tattoo ink industry.
- Published
- 2024
- Full Text
- View/download PDF
40. Estudos sobre a burocracia no nível subnacional: Avanços e perspectivas
- Author
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Felix G. Lopez, Mariana Batista, and André Marenco
- Subjects
Political institutions and public administration (General) ,JF20-2112 - Published
- 2023
- Full Text
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41. Successive cycles of soil drying and wetting improve tolerance to drought in mangabeira
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Adriana Miguel Fernando and Ricardo Antonio Marenco
- Subjects
Hancornia speciosa ,photosynthesis ,stomatal conductance ,water deficit ,Agriculture (General) ,S1-972 - Abstract
Abstract The objective of this work was to evaluate biomass accumulation and photosynthesis in mangabeira, in response to water deficit and to successive soil drying and wetting cycles. Seedlings were grown in pots and subjected to the three following water regimes: soil at 35, 70, and 100% of field capacity (FC), followed by a drying-down period until photosynthesis (measured weekly) was close to zero. Then, the seedlings were rewatered until completing four drying-wetting cycles. The control treatment was a permanently well-irrigated soil. There was a decline in biomass accumulation under water deficit conditions. Photosynthesis responded to soil rewatering only at 70 and 100% FC and was null at 35% FC. The elapsed time for photosynthesis to reach a null value after rewatering increases with successive drying-wetting cycles. In soil at 100% FC, for photosynthesis to approach zero, it takes five weeks in the first and eight weeks in the last rewatering cycle. Photosynthesis improves with progressive drying-wetting cycles, particularly in soil at 100% FC. The pre-acclimation of mangabeira to drying-wetting cycles should be considered before transplanting the seedlings in the field, and pre-acclimation should be carried out initially with soil at its FC.
- Published
- 2023
- Full Text
- View/download PDF
42. Antipsychotic drug use complicates assessment of gene expression changes associated with schizophrenia
- Author
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Anton Schulmann, Stefano Marenco, Marquis P. Vawter, Nirmala Akula, Agenor Limon, Ajeet Mandal, Pavan K. Auluck, Yash Patel, Barbara K. Lipska, and Francis J. McMahon
- Subjects
Neurosciences. Biological psychiatry. Neuropsychiatry ,RC321-571 - Abstract
Abstract Recent postmortem transcriptomic studies of schizophrenia (SCZ) have shown hundreds of differentially expressed genes. However, the extent to which these gene expression changes reflect antipsychotic drug (APD) exposure remains uncertain. We compared differential gene expression in the prefrontal cortex of SCZ patients who tested positive for APDs at the time of death with SCZ patients who did not. APD exposure was associated with numerous changes in the brain transcriptome, especially among SCZ patients on atypical APDs. Brain transcriptome data from macaques chronically treated with APDs showed that APDs affect the expression of many functionally relevant genes, some of which show expression changes in the same directions as those observed in SCZ. Co-expression modules enriched for synaptic function showed convergent patterns between SCZ and some of the APD effects, while those associated with inflammation and glucose metabolism exhibited predominantly divergent patterns between SCZ and APD effects. In contrast, major cell-type shifts inferred in SCZ were primarily unaffected by APD use. These results show that APDs may confound SCZ-associated gene expression changes in postmortem brain tissue. Disentangling these effects will help identify causal genes and improve our neurobiological understanding of SCZ.
- Published
- 2023
- Full Text
- View/download PDF
43. Stem growth of multipurpose tree species: net effect of micrometeorological variability assessed by principal component regression
- Author
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Alan Pena de SOUZA and Ricardo Antonio MARENCO
- Subjects
Amazon rainforest ,growth ,ecophysiology ,soil water availability ,Science (General) ,Q1-390 - Abstract
ABSTRACT In a typical year in the central Amazon, there is a mild dry season, but its effect on stem growth of multipurpose forest tree species is not yet well known. This study aimed to determine the individual effect of microclimatic parameters on stem growth after removing the influence of intercorrelation among microclimatic variables. Monthly stem diameter increment was measured in six species (46 trees) from January 2018 to December 2020. Microclimatic variables recorded were irradiance, air temperature, rainfall, and vapor pressure deficit. Principal component regression was used to assess the effect of micrometeorological variability on stem growth. On average, stem growth increased with an increase in rainfall and soil water content, but decreased with rise in maximum temperature and maximum vapor pressure deficit. These findings indicate that, when removing the effect of intercorrelation between microclimatic parameters, vapor pressure deficit may, in fact, affect stem growth. We demonstrate that the reduction in stem growth during the dry season can also be related to an increase in maximum temperature and maximum vapor pressure deficit, and not only to a decline in soil water content.
- Published
- 2022
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44. Energy smart management and performance monitoring of a NZEB: Analysis of an application
- Author
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A. Magrini, L. Marenco, and A. Bodrato
- Subjects
NZEB ,Energy performance monitoring ,Energy efficiency ,Regulating devices ,Smart energy management ,Electrical engineering. Electronics. Nuclear engineering ,TK1-9971 - Abstract
The NZEB (Nearly Zero Energy Building) spreading with its reduced energy performance is one of the main purposes of the Directive 2010/31/EU.New buildings design and existing buildings renovation have been the subjects of discussion to trace the way towards achieving a high level of energy performance of the entire European building stock. However, in order to keep long-term optimal results, it is necessary to plan a correct management both of thermal systems and of passive climate control.There is still a small amount of data available about the effectiveness of the measures adopted for energy saving in the new design to demonstrate the maintaining of the performance. Therefore, it could be useful to broaden experimental monitoring campaigns, in order to better address the design choices in the next future.As a contribution to increasing knowledge about the intelligent management of an NZEB, the control systems and operating procedures of thermal plants of a case-study (new single house building) are discussed, based on simulation results and long-term measurements. The control procedures for internal environmental conditions and plant systems, aiming at maintaining both indoor comfort conditions and an efficient management of energy consumption, are described.The analyses quantitatively demonstrate how the correct energy management can significantly reduce the actual consumption, compared to the estimated one. Moreover, the need of the adaptation of the home automation management systems to the actual use of the building is put in evidence.Their smart use in fact guarantees the expected performance, and in some cases can improve it, by tailoring the energy behaviour of the building to the users’ specific needs.In the case study, the energy performance of the building, calculated by means of the national methodology, satisfies the NZEB target. The long term monitoring reveals its potential as a Positive Energy Building (PEB) because it produces more energy than its needs.The important support of these analyses shows that it is useful to get a wider number of case studies in order to expand the knowledge of the effective NZEB energy behaviour and to put in evidence smart choices for obtaining the maximum long-lasting energy performance.
- Published
- 2022
- Full Text
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45. Elevated CO2 induces down-regulation of photosynthesis and alleviates the effect of water deficit in Ceiba pentandra (Malvaceae)
- Author
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Alexandra Maria Ferreira Silveira and Ricardo Antonio Marenco
- Subjects
Biomass accumulation ,Water use efficiency ,Photosynthesis acclimation. ,Forestry ,SD1-669.5 - Abstract
ABSTRACT The simultaneous effect of elevated CO2 concentration and drought on trees is still under investigation in the Amazon. We evaluated the effect of CO2 levels (400 and 800 ppm) and water regimes (50% and 100% soil field capacity) on photosynthetic traits, chlorophyll fluorescence, and total biomass accumulation in Ceiba pentandra. In well-watered plants, light-saturated photosynthesis (PN-sat) increased in plants exposed to elevated CO2, but both PN-sat and stomatal conductance decreased in response to water deficit. The maximum carboxylation rate of Rubisco declined under elevated CO2, which indicates down-regulation of photosynthesis at elevated CO2. The Fv/Fm ratio was not affected by treatments. Notwithstanding, total plant biomass and leaf area were reduced by 34-37% under water deficit, but they were not affected by CO2 levels. The PN-sat values measured in well-irrigated plants at ambient CO2 were similar to those observed in plants subjected to elevated CO2 and water deficit (p = 0.26). We concluded that the effect of water deficit on PN-sat was mitigated by elevated CO2. These results suggest that the increase of atmospheric CO2 concentrations associated to climate changes can at least partly offset the negative effect of drought in this multiuse and widely distributed species.
- Published
- 2023
- Full Text
- View/download PDF
46. Ecofriendly Application of Calabrese Broccoli Stalk Waste as a Biosorbent for the Removal of Pb(II) Ions from Aqueous Media
- Author
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María Dolores Granado-Castro, María Dolores Galindo-Riaño, Jesús Gestoso-Rojas, Lorena Sánchez-Ponce, María José Casanueva-Marenco, and Margarita Díaz-de-Alba
- Subjects
lead ,broccoli stalk ,reuse of agricultural waste ,biosorption ,green ,sustainability ,Agriculture - Abstract
A new biosorbent obtained from Calabrese broccoli stalks has been prepared, characterised and used as an effective, low-cost and ecofriendly biomass to remove Pb(II) from aqueous solutions, without any complicated pretreatment. Structural and morphological characterisation were performed by TGA/DGT, FTIR and SEM/EDX; the main components are hemicellulose, starches, pectin, cellulose, lignin and phytochemicals, with important electron donor elements (such as S from glucosinolates of broccoli) involved in Pb(II) sorption. The biosorbent showed values of 0.52 and 0.65 g mL−1 for bulk and apparent densities, 20.6% porosity, a specific surface area of 15.3 m2 g−1, pHpzc 6.25, iodine capacity of 619 mg g−1 and a cation exchange capacity of 30.7 cmol kg−1. Very good sorption (88.3 ± 0.8%) occurred at pH 4.8 with a biomass dose of 10 g L−1 after 8 h. The Freundlich and Dubinin–Radushkevich isotherms and the pseudo-second-order kinetic models explained with good fits the favourable Pb(II) sorption on the heterogeneous surface of broccoli biomass. The maximum adsorption capacity was 586.7 mg g−1. The thermodynamic parameters evaluated showed the endothermic and spontaneous nature of the Pb(II) biosorption. The chemical mechanisms mainly involved complexation, ligand exchange and cation–π interaction, with possible precipitation.
- Published
- 2024
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47. The Effect of Oral Adenosine Triphosphate (ATP) Supplementation on Anaerobic Exercise in Healthy Resistance-Trained Individuals: A Systematic Review and Meta-Analysis
- Author
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Roberto González-Marenco, Ivonne Azeret Estrada-Sánchez, Martha Medina-Escobedo, Rodolfo Chim-Aké, and Roberto Lugo
- Subjects
adenosine triphosphate ,performance-enhancing substances ,muscle strength ,dietary supplements ,resistance training ,Sports ,GV557-1198.995 - Abstract
Adenosine triphosphate (ATP) is an energy and signaling molecule. It is synthesized endogenously and can be taken as an oral supplement. This review aimed to identify the effects of oral ATP supplementation on anaerobic exercise in healthy resistance-trained adults. A systematic review and meta-analysis were performed based on the Preferred Reporting Items of Systematic Reviews and Meta-Analysis (PRISMA) criteria. The inclusion criteria were articles published from 2000 to 2022, with anaerobic variables (maximal strength, maximum repetitions, and maximum anaerobic power) measurable in healthy adults with experience in resistance training, only randomized placebo-controlled clinical trials (RCTs), and with the acute (a single dose 30 min to 24 h before the tests) and/or chronic (>1 day) oral supplementation of ATP. A total of five RCTs with 121 adult men were included. The oral ATP supplementation achieved significantly greater gains in maximal strength compared with the placebo (PL) (MD = 8.13 kg, 95%CI [3.36–12.90], p < 0.001). Still, no differences were observed in the maximum number of repetitions or the maximum anaerobic power. Furthermore, 400 mg of ATP showed improvement in anaerobic exercise regardless of the duration of the supplementation protocol. In conclusion, supplementation with 400 mg of ATP doses can improve maximal muscle strength in resistance-trained men.
- Published
- 2024
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48. Ecological Status of Algeciras Bay, in a Highly Anthropised Area in South-West Europe, through Metal Assessment—Part II: Biotic Samples
- Author
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María José Casanueva-Marenco, María Dolores Galindo-Riaño, María Dolores Granado-Castro, and Margarita Díaz-de-Alba
- Subjects
metal bioaccumulation ,fish ,metal pollution ,pollution indexes ,water ,sediment ,Chemical technology ,TP1-1185 - Abstract
Biotic samples from Algeciras Bay (South-west Europe) were studied to assess its ecological status, complementing the previous abiotic monitoring of trace metals in water and sediments. This bay is a densely populated area with intense port traffic and is highly industrialised with metal inputs. To study the impact of this, Zn, Cd, Pb, and Cu contents were determined in tissues of benthic (Solea senegalensis) and benthopelagic species (Scorpaena porcus, Trigloporus lastoviza, and Diplodus sargus sargus). Notable levels of Zn and Cu were found in the liver and gills of all fish species. Compared to international muscle guidelines, Pb sometimes exceeded the most restrictive values, outstanding S. porcus with 27% of samples above the permissible value. Metal pollution indexes revealed that the liver and gills of benthic species were more affected by metal pollution than benthopelagic species, especially in most industrialised sites. Particularly, S. senegalensis presented a higher accumulation factor from sediment of Cd and Cu in the liver (30.1 and 345.1), probably due to the close interaction as benthic species. Among the species studied, S. senegalensis and D. sargus sargus proved to be the best representative and useful bioindicators of metal-polluted environments as this bay. The results were consistent with the findings from the abiotic samples.
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- 2024
- Full Text
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49. Ecological Status of Algeciras Bay, in a Highly Anthropised Area in South-West Europe, through Metal Assessment—Part I: Abiotic Samples
- Author
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María José Casanueva-Marenco, María Dolores Galindo-Riaño, María Dolores Granado-Castro, and Margarita Díaz-de-Alba
- Subjects
metal bioaccumulation ,metal pollution ,fractionation ,pollution indexes ,water ,sediment ,Chemical technology ,TP1-1185 - Abstract
The ecological status of Algeciras Bay (South-west Europe), highly influenced by anthropogenic activities, was assessed by monitoring Zn, Cd, Pb, and Cu in water and sediment samples. Total contents and metal fractions with different availabilities and their spatial-seasonal distribution were determined. The trend in water and sediment contents were Zn > Pb ≈ Cu > Cd, without significant seasonal variations. Sites 3 and 4, closest to industrial activities, had the highest metal concentrations, mainly in sediments. Cd showed low partition coefficient in water, indicating higher bioavailability. Total metal content in sediments exceeded the threshold effect level for Cu and were close to Pb. The BCR procedure revealed the highest availabilities for Cd and Pb, due to its higher content in exchangeable and reducible fractions. Higher Pb levels (21.4 ± 5.1 mg/kg) were found in sediments of this bay compared with other ecosystems. Pollution indexes for sediment quality revealed that site 3 was the most polluted (CF = 7.12 and Igeo = 2.25). For an integrative study of the ecological status of this significant bay, these results have been complemented with the metal evaluation in benthic and benthopelagic fish tissues in Ecological status of Algeciras Bay, in a highly anthropised area in south-west Europe, through metal assessment—Part II: Biotic samples.
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- 2024
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50. A phase I/IIa clinical trial of autologous hematopoietic stem cell transplantation in amyotrophic lateral sclerosis
- Author
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Lunetta, Christian, Lizio, Andrea, Cabona, Corrado, Gerardi, Francesca, Sansone, Valeria Ada, Corbo, Massimo, Scialò, Carlo, Angelucci, Emanuele, Gualandi, Francesca, Marenco, Paola, Grillo, Giovanni, Cairoli, Roberto, Cesana, Clara, Saccardi, Riccardo, Melazzini, Mario Giovanni, Mancardi, Gianluigi, and Caponnetto, Claudia
- Published
- 2022
- Full Text
- View/download PDF
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