17 results on '"Nascimento, L"'
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2. Social media image classification for jellyfish monitoring
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Carneiro, A., Nascimento, L. S., Noernberg, M. A., Hara, C. S., and Pozo, A. T. R.
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- 2024
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3. Not such a rare species, after all? Insights into Drymonema gorgo Müller 1883 (Cnidaria, Scyphozoa), a large and little-known jellyfish from Brazil
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Nascimento, L. S., Noernberg, M. A., Bleninger, T. B., Lindner, A., and Nogueira Júnior, M.
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- 2024
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4. Analysis of the implementation of a sleep quality program in a public transport company in the metropolitan region of the city of Recife
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Nascimento, L., primary and Galdino, G., additional
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- 2024
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5. How do rhizobacteria species influence the growth and yield of soybean in a tropical environment?
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Silva, R. K. S., da Silva, P. F. M., Nascimento, L. M., de Araújo, T. A. N., and Vendruscolo, E. P.
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CROP yields ,RHIZOBACTERIA ,PSEUDOMONAS fluorescens ,BACILLUS subtilis ,AGRICULTURAL productivity ,SOYBEAN - Abstract
The application of rhizobacteria has gained space in agricultural production, given the demand for more sustainable systems. However, most of the results obtained are related to soil or seed application, leaving a gap in relation to the foliar application of these microorganisms. The objective of this work was to evaluate the impact of foliar application of different types of growth-promoting rhizobacteria on morphological aspects and production components of soybean. For this, the foliar application of four rhizobacteria (Serratia sp.; Bacillus subtilis; Bacillus sp.; Pseudomonas fluorescens) was used, as well as a control without inoculation. Morphological variables of growth and production components were analyzed. The yield ratio of the treatments with rhizobacteria, concerning the control was also calculated. The foliar application with different rhizobacteria in soybean did not affect the vegetative parameters of plant height, stem diameter and dry weight of the canopy. For the number of pods per plant, number of grains per plant and grain yield the use of Bacillus sp. was superior to the other treatments, providing an average increase of 27.65%, 20.32% and 28.59%, respectively. Also, the Serratia sp., Bacillus subtilis and Pseudomonas fluorescens application increased the grain yield by 8.49%, 10.73% and 5.71%, respectively. In conclusion, for the condition of the tropical region where this study was conducted, the foliar application with different growth-promoting rhizobacteria in soybean did not interfere in the vegetative development of soybean plants. In addition, considering the factors related to the increase of production in cultivated areas, all rhizobacteria have the potential to improve yield gains when applied as foliar treatment, especially the Bacillus sp. [ABSTRACT FROM AUTHOR]
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- 2024
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6. Epidemiological analysis of hospitalizations for Schizophrenia, Schizotypal Disorders and Delirium in Rio Grande do Sul over the last 5 years.
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Bardini, L., Roloff Krüger, A., Moreno Xavier, G., Fiorio Grando, G., Michelon, J., Alves Nascimento, L. F., Adames, J., Konzen, A. T., Pereira Bernd, G., Fontes Augusto, C., Wolmeister, H., Fachinetto Thoen, I., de França, Y., Filipin Von Muhlen, P. H., Carvalho da Costa, F. J., Kayser, V., Paesi Dutra, P. H., Rahal de Albuquerque, R., Garcia Furtado, T., and Macelaro, G.
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EPIDEMIOLOGY ,PSYCHIATRIC hospital care ,HOSPITALS ,MEDICAL care ,AGE groups - Abstract
Introduction: In recent years, mental health has gained prominence in public health, prompting thorough investigations into psychiatric condition trends. This study conducts a comprehensive epidemiological analysis of hospitalizations for Schizophrenia, Schizotypal, and Delirium Disorders in Rio Grande do Sul (RS) over the past five years. By revealing these patterns, it enhances our understanding of regional mental health dynamics and offers insights for intervention strategies, resource planning, and improved mental healthcare. The ultimate goal is to advance more effective and accessible mental healthcare in RS and beyond. Objectives: This study aims to analyze the prevalence and epidemiological profile of hospitalizations due to psychiatric disorders to assist in the diagnosis and outcome of affected patients. Methods: A cross-sectional, descriptive, retrospective, and quantitative study was conducted regarding hospitalizations for Schizophrenia, Schizotypal Disorders, and Delirium in the state of RS between January 2018 and November 2022. Data were collected from the Department of Informatics of the Brazilian Unified Health System (DATASUS) in the "Hospital Information System of SUS" section, focusing on the nature of care, age group, gender, and ethnicity of the patients. The information was aggregated over the five-year period based on the four mentioned descriptors and subsequently analyzed to establish a profile of hospitalizations during that period. Results: The analysis spans from 2018 to 2022, encompassing a total of 28,345 hospitalizations. In 2019, there was the highest number of cases (22.21%), followed by 2018 (21.08%). Urgent care admissions constituted 85.34% of the total. The age group most affected was 35 to 39 years (11.8%). Men were more affected than women (60.18%), and the majority of hospitalizations were among the Caucasian ethnicity (75.12%). The average length of stay was 23.7 days, and the mortality rate stood at 0.26%. Conclusions: The increasing trend in hospitalizations, peaking in 2019, highlights the need for preventive measures. Urgent admissions (85.34%) underscore the demand for accessible mental health resources. Men in the 35 to 39 age group are disproportionately affected, suggesting specific risk factors. The predominance of Caucasian ethnicity emphasizes the need for culturally sensitive care. A longer average length of stay (23.7 days) underscores treatment complexity, while a low mortality rate (0.26%) signals effective medical care. In essence, these findings inform tailored mental health policies to enhance service quality and prioritize patient-centered approaches. Disclosure of Interest: None Declared [ABSTRACT FROM AUTHOR]
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- 2024
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7. Is the six-minute step test an alternative to six-minute walking test to assessment the functional capacity in elderly?
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Lopes Do Nascimento, L L N, Rossi, J C, Antunes, L, Leite, Y A, Coelho, G G, Pacheco, M P, Santos, G F, Carvalho, Y F, Silva, R E N S, and Oliveira, L C M
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- 2024
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8. Effects of cardiac rehabilitation on the functional capacity of hypertensive elderly people in primary care
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Lopes Do Nascimento, L L N, Carvalho, Y F, Pacheco, M P, Coelho, G G, Santos, G F, Leite, Y A, Oliveira, L C M, and Silva, R E N S
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- 2024
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9. Mental and Behavioral Disorders Associated with the Use of Psychoactive Substances and Alcohol: An Epidemiological Analysis in Southern Brazil.
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Bardini, L., Roloff Krüger, A., Moreno Xavier, G., Fiorio Grando, G., Michelon, J., Alves Nascimento, L. F., Adames, J., Konzen, A. T., Pereira Bernd, G., Fontes Augusto, C., Wolmeister, H., Fachinetto Thoen, I., de França, Y., Filipin Von Muhlen, P. H., Carvalho da Costa, F. J., Kayser, V., Paesi Dutra, P. H., Rahal de Albuquerque, R., Garcia Furtado, T., and Macelaro, G.
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EPIDEMIOLOGY ,MEDICAL informatics ,MENTAL illness ,AFFECTIVE disorders ,SUBSTANCE abuse - Abstract
Introduction: Neuropsychiatric disorders are the leading cause of disability worldwide, as seen in cases such as depression, anxiety, bipolar mood disorder and schizophrenia, which can be developed or exacerbated by the use of psychoactive substances. Most mental disorders have an early onset, often leading to early and/or permanent disability, increasing the need and cost of healthcare. Therefore, it is necessary to improve the identification of the epidemiological profile of these cases in the South of Brazil in order to enhance the diagnosis and reduce the costs associated with managing these disorders. Objectives: The present study aimed to analyze statistical data regarding hospitalizations related to mental disorders caused by the use of psychoactive substances and alcohol in the southern region of Brazil, highlighting the pathological scenario and identifying the most prevalent profiles of these disorders in this region. Methods: A cross-sectional, descriptive, retrospective, and quantitative study was conducted on hospitalizations of individuals diagnosed with mental and behavioral disorders due to the use of psychoactive substances and alcohol in the states of the Southern region of Brazil (Paraná, Santa Catarina, and Rio Grande do Sul) between February 2020 and December 2022. Data of January 2020 were not available. The data used were collected through the Department of Health Informatics of the Brazilian Unified Health System (DATASUS) in the "Hospital Information System of SUS" section, gathering information regarding the nature of the care, age range, gender, and ethnicity of the patients. Results: The study covers the years 2020 to 2022, indicating a total of 81,608 hospitalizations, with the year 2022 having the highest number of cases (≈ 37.13%), followed by 2021 (≈ 33.30%) and 2020 (≈ 29.55%). The states with the highest number of hospitalizations were Rio Grande do Sul (≈ 54.90%), Paraná (≈ 29.29%), and Santa Catarina (≈ 15.79%). Urgent hospitalizations accounted for ≈ 87.29% of the total. The most affected age group was 30 to 39 years old (≈ 25.61%). Men were more affected than women (≈ 81.70% and ≈ 18.28%, respectively). Caucasians accounted for ≈ 64.29% of the hospitalizations. The average length of stay was 20.8 days, and the mortality rate was 0.32%. Conclusions: There is a clear increase in the number of hospitalizations related to mental disorders caused by the use of psychoactive substances in the period from 2020 to 2022 in the southern region of Brazil, with the highest number of cases in the state of Rio Grande do Sul. The most affected population consisted of Caucasian men aged 30 to 39 years old. Furthermore, these results may be related to the increasing trend of psychoactive substance use among the Brazilian population and also the COVID-19 pandemic, which led to a period of underreporting due to social isolation. Disclosure of Interest: None Declared [ABSTRACT FROM AUTHOR]
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- 2024
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10. Understanding the Occurrence of Psychiatric Disorders in Epilepsy in Brazil: An Epidemiological Investigation.
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Bardini Goulart, L., Roloff Krüger, A., Moreno Xavier, G., Fiorio Grando, G., Michelon, J., Alves Nascimento, L. F., Adames, J., Konzen, A. T., Pereira Bernd, G., Fontes Augusto, C., Wolmeister, H., Fachinetto Thoen, I., de França, Y., Filipin Von Muhlen, P. H., Carvalho da Costa, F. J., Kayser, V., Paesi Dutra, P. H., Rahal de Albuquerque, R., Garcia Furtado, T., and Macelaro, G.
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SLEEP interruptions ,COMORBIDITY ,PEOPLE with epilepsy ,DELUSIONS ,MEDICAL informatics - Abstract
Introduction: Epilepsy is one of the most common serious brain illness, with symptoms influenced by multiple risk factors and a strong genetic predisposition, rather than having a single expression and cause¹. Neuropsychiatric symptoms in epilepsy can encompass manifestations such as mood alterations, anxiety, sleep disturbances, psychosis, and behavioral disorders. While the motor and sensory manifestations of epileptic seizures are widely recognized, neuropsychiatric symptoms accompanying epilepsy are often underestimated. Therefore, it is essential to understand the most prevalent epidemiological profile of these patients to improve the diagnosis and management of these symptoms. Objectives: Our goal was to evaluate the neuropsychiatric behavior of epilepsy patients in Brazilian over the past 3 years through hospitalization data in order to outline an epidemiological and behavioral profile. Methods: A cross-sectional, descriptive, retrospective, and quantitative study was conducted on hospitalizations of individuals simultaneously diagnosed with epilepsy, schizotypal and delusional disorders, and mood disorders in all five regions of Brazil (South, Southeast, Midwest, North, and Northeast) between February 2020 and December 2022. Data from January 2020 were not available. The data used were collected through the Department of Health Informatics of the Brazilian Unified Health System (DATASUS) in the "Hospital Information System of SUS" section, gathering information regarding the nature of care, age range, gender, and ethnicity of the patients. Results: The analysis covers the years 2020 to 2022, totaling 503,045 hospitalizations. In 2022, the highest number of cases occurred (≈ 37.55%), followed by 2021 (≈ 33.62%) and 2020 (≈ 28.81%). Urgent hospitalizations represented ≈ 90.85% of the total. The most affected age group was 30 to 39 years old (≈ 18.30%). Men were more affected than women (≈ 52.03% and ≈ 47.96%, respectively), and Caucasians accounted for ≈ 36.07% of the hospitalizations. The average length of stay was 19.1 days, and the mortality rate was 1.4%. Conclusions: Thus, there is a gradual and annual increase in the number of hospitalizations during the observed period. While there is a minimal disparity between the affected genders, it is evident that the profile of male, caucasian, and adult patients is the most prevalent. Moreover, the predominantly urgent nature of hospitalizations points to an alarming scenario regarding this issue. From the analysis of the data obtained in the study, there is a clear need for interventions capable of reducing the prevalence of hospitalizations for neuropsychiatric symptoms in epilepsy patients in Brazil. Disclosure of Interest: None Declared [ABSTRACT FROM AUTHOR]
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- 2024
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11. In defence of the entity of Macaronesia as a biogeographical region.
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Fernández-Palacios JM, Otto R, Capelo J, Caujapé-Castells J, de Nascimento L, Duarte MC, Elias RB, García-Verdugo C, Menezes de Sequeira M, Médail F, Naranjo-Cigala A, Patiño J, Price J, Romeiras MM, Sánchez-Pinto L, and Whittaker RJ
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Since its coinage ca. 1850 AD by Philip Barker Webb, the biogeographical region of Macaronesia, consisting of the North Atlantic volcanic archipelagos of the Azores, Madeira with the tiny Selvagens, the Canaries and Cabo Verde, and for some authors different continental coastal strips, has been under dispute. Herein, after a brief introduction on the terminology and purpose of regionalism, we recover the origins of the Macaronesia name, concept and geographical adscription, as well as its biogeographical implications and how different authors have positioned themselves, using distinct terrestrial or marine floristic and/or faunistic taxa distributions and relationships for accepting or rejecting the existence of this biogeographical region. Four main issues related to Macaronesia are thoroughly discussed: (i) its independence from the Mediterranean phytogeographical region; (ii) discrepancies according to different taxa analysed; (iii) its geographical limits and the role of the continental enclave(s), and, (iv) the validity of the phytogeographical region level. We conclude that Macaronesia has its own identity and a sound phytogeographical foundation, and that this is mainly based on three different floristic components that are shared by the Macaronesian core (Madeira and the Canaries) and the outermost archipelagos (Azores and Cabo Verde). These floristic components are: (i) the Palaeotropical-Tethyan Geoflora, formerly much more widely distributed in Europe and North Africa and currently restricted to the three northern archipelagos (the Azores, Madeira and the Canaries); (ii) the African Rand Flora, still extant in the coastal margins of Africa and Arabia, and present in the southern archipelagos (Madeira, the Canaries and Cabo Verde), and (iii) the Macaronesian neoendemic floristic component, represented in all the archipelagos, a result of allopatric diversification promoted by isolation of Mediterranean ancestors that manage to colonize Central Macaronesia and, from there, the outer archipelagos. Finally, a differentiating floristic component recently colonized the different archipelagos from the nearest continental coast, providing them with different biogeographic flavours., (© 2024 The Author(s). Biological Reviews published by John Wiley & Sons Ltd on behalf of Cambridge Philosophical Society.)
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- 2024
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12. Self-assembly mucoadhesive beads of κ-carrageenan/sericin for indomethacin oral extended release.
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Vieira WT, Viegas JSR, da Silva MGC, de Oliveira Nascimento L, Vieira MGA, and Sarmento B
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- Administration, Oral, Humans, Drug Carriers chemistry, Drug Liberation, Cell Survival drug effects, Microspheres, Animals, Caco-2 Cells, Hydrogen-Ion Concentration, Indomethacin chemistry, Indomethacin administration & dosage, Indomethacin pharmacokinetics, Carrageenan chemistry, Sericins chemistry, Delayed-Action Preparations chemistry
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Oral drug administration, especially when composed of mucoadhesive delivery systems, has been a research trend due to increased residence time and contact with the mucosa, potentially increasing drug bioavailability and stability. In this context, this study aimed to develop self-assembly mucoadhesive beads composed of blends of κ-carrageenan and sericin (κ-Car/Ser) loaded with the anti-inflammatory drug indomethacin (IND). We investigated the swelling, adhesion behaviour, and mechanical/physical properties of the beads, assessing their effects on cell viability, safety and permeation characteristics in both 2D and triple-culture model. The swelling ratio of the beads indicated pH-responsiveness, with maximum water absorption at pH 6.8, and strong mucoadhesion, increasing primarily with higher polymer concentrations. The beads exhibited thermal stability and no chemical interaction with IND, showing improved mechanical properties. Furthermore, the beads remained stable during accelerated and long-term storage studies. The beads were found to be biocompatible, and IND encapsulation improved cell viability (>70 % in both models, 79 % in VN) and modified IND permeation through the models (6.3 % for F5 formulation (κ-Car 0.90 % w/v | Ser 1.2 % w/v| IND 3.0 g); 10.9 % for free IND, p < 0.05). Accordingly, κ-Car/Ser/IND beads were demonstrated to be a promising IND drug carrier to improve oral administration while mitigating the side effects of non-steroidal anti-inflammatories., Competing Interests: Declaration of competing interest The authors of this study declare no conflict of interest., (Copyright © 2024 Elsevier B.V. All rights reserved.)
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- 2024
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13. Generation of stable suspension producer cell lines for serum-free lentivirus production.
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Klimpel M, Terrao M, Bräuer M, Dersch H, Biserni M, Melo Do Nascimento L, Schwingal S, Vogel JE, Ferlemann C, Brandt T, Lal NI, Bridgeman K, Petzke A, McDwyer E, Lim JL, Oh S, Brumatti G, Garcia Minambres A, Otte E, Noll T, Pirzas V, and Laux H
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- Humans, Culture Media, Serum-Free, Cell Line, Cell Culture Techniques methods, Virus Cultivation methods, HEK293 Cells, Transfection methods, Lentivirus genetics, Bioreactors, Genetic Vectors genetics
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The production of lentiviral vectors (LVs) pseudotyped with the vesicular stomatitis virus envelope glycoprotein (VSV-G) is limited by the associated cytotoxicity of the envelope and by the production methods used, such as transient transfection of adherent cell lines. In this study, we established stable suspension producer cell lines for scalable and serum-free LV production derived from two stable, inducible packaging cell lines, named GPRG and GPRTG. The established polyclonal producer cell lines produce self-inactivating (SIN) LVs carrying a WAS-T2A-GFP construct at an average infectious titer of up to 4.64 × 10
7 TU mL-1 in a semi-perfusion process in a shake flask and can be generated in less than two months. The derived monoclonal cell lines are functionally stable in continuous culture and produce an average infectious titer of up to 9.38 × 107 TU mL-1 in a semi-perfusion shake flask process. The producer clones are able to maintain a productivity of >1 × 107 TU mL-1 day-1 for up to 29 consecutive days in a non-optimized 5 L stirred-tank bioreactor perfusion process, representing a major milestone in the field of LV manufacturing. As the producer cell lines are based on an inducible Tet-off expression system, the established process allows LV production in the absence of inducers such as antibiotics. The purified LVs efficiently transduce human CD34+ cells, reducing the LV quantities required for gene and cell therapy applications., (© 2024 CSL Innovation GmbH and The Authors. Biotechnology Journal published by Wiley‐VCH GmbH.)- Published
- 2024
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14. New optically stimulated luminescence dosimetry film optimized for energy dependence guided by Monte Carlo simulations.
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De Saint-Hubert M, Caprioli M, de Freitas Nascimento L, Delombaerde L, Himschoot K, Vandenbroucke D, Leblans P, and Crijns W
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- Monte Carlo Method, Radiometry, Luminescence, X-Rays, Film Dosimetry methods, Optically Stimulated Luminescence Dosimetry
- Abstract
Optically stimulated luminescence (OSL) film dosimeters, based on BaFBr:Eu
2+ phosphor material, have major dosimetric advantages such as dose linearity, high spatial resolution, film re-usability, and immediate film readout. However, they exhibit an energy-dependent over-response at low photon energies because they are not made of tissue-equivalent materials. In this work, the OSL energy-dependent response was optimized by lowering the phosphor grain size and seeking an optimal choice of phosphor concentration and film thickness to achieve sufficient signal sensitivity. This optimization process combines measurement-based assessments of energy response in narrow x-ray beams with various energy response calculation methods applied to different film metrics. Theoretical approaches and MC dose simulations were used for homogeneous phosphor distributions and for isolated phosphor grains of different dimensions, where the dose in the phosphor grain was calculated. In total 8 OSL films were manufactured with different BaFBr:Eu2+ median particle diameters (D50): 3.2 μ m, 1.5 μ m and 230 nm and different phosphor concentrations (1.6%, 5.3% and 21.3 %) and thicknesses (from 5.2 to 49 μ m). Films were irradiated in narrow x-ray spectra (N60, N80, N-150 and N-300) and the signal intensity relative to the nominal dose-to-water value was normalized to Co-60. Finally, we experimentally tested the response of several films in Varian 6MV TrueBeam STx linear accelerator using the following settings: 10 × 10 cm2 field, 0deggantry angle, 90 cm SSD, 10 cm depth. The x-ray irradiation experiment reported a reduced energy response for the smallest grain size with an inverse correlation between response and grain size. The N-60 irradiation showed a 43% reduction in the energy over-response when going from 3 μ m to 230 nm grain size for the 5% phosphor concentration. Energy response calculation using a homogeneous dispersion of the phosphor underestimated the experimental response and was not able to obtain the experimental correlation between grain size and energy response. Isolated grain size modeling combined with MC dose simulations allowed to establish a good agreement with experimental data, and enabled steering the production of optimized OSL-films. The clinical 6 MV beam test confirmed a reduction in energy dependence, which is visible in small-grain films where a decrease in out-of-field over-response was observed., (© 2024 Institute of Physics and Engineering in Medicine.)- Published
- 2024
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15. Content analysis of the nursing diagnosis of ineffective peripheral tissue perfusion in patients with diabetic foot.
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Fontenele Nascimento L, Maia Pascoal L, de Oliveira Lopes MV, Santos Neto M, Arrais Sampaio Santos FA, Pereira De Jesus Costa AC, and Stabnow Santos F
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Aim: To analyse the content of the nursing diagnosis ineffective peripheral tissue perfusion in patients with diabetic foot., Design: A methodological study with a quantitative approach was performed., Methods: The analysis was performed between January and May 2021 by 34 nurses with clinical/theoretical/research experience with diabetes or nursing diagnoses. These nurses evaluated the relevance, clarity and precision of 12 diagnosis-specific etiological factors, 22 clinical indicators and their conceptual and operational definitions., Findings: All 12 etiological factors analysed were considered relevant to diagnostic identification. However, five showed inconsistencies regarding the clarity or precision of the operational definitions, requiring adjustments. Regarding the 22 clinical indicators evaluated, all of them presented a Content Validity Index (CVI) that was statistically significant. However, in the indicators, the colour does not return to lowered limb after 1 min of leg elevation, and cold foot had Content Validity Index (CVI) <0.9 regarding relevance and accuracy of operational definitions., Conclusions: Twelve etiological factors and 22 clinical indicators were validated. Thus, this study revealed new and relevant aspects characterising peripheral perfusion in patients with diabetic foot that have not yet been clinically validated., Implications for Nursing Practice: This study contributes to support the professional practice of nurses through the early identification of etiological factors and clinical indicators in persons with diabetic foot. As a proposal, we suggest the inclusion of new defining characteristics and related factors for the nursing diagnosis ineffective peripheral tissue perfusion in the NANDA-I taxonomy., Impact: The research highlights new and relevant aspects such as etiological factors and clinical indicators to characterise peripheral perfusion in patients with diabetic foot. Based on these findings, clinical validation is recommended to confirm the relevance of the proposed elements in the population studied for greater reliability and improved diagnostic assessment for the professional practice of nurses., Reporting Method: EQUATOR guidelines were adhered to using the GRRAS checklist for reporting reliability and agreement studies., Patient or Public Contribution: No patient or public contribution., (© 2024 John Wiley & Sons Ltd.)
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- 2024
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16. Correction: Pontes do Nascimento et al. Synthesis of Mesoporous Zn 1-x M x Al 2 O 4 Substituted by Co 2+ and Ni 2+ Ions and Application in the Photodegradation of Rhodamine B. Materials 2020, 13 , 2150.
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Pontes do Nascimento NM, Machado de Lima BR, Zamian JR, Ferreira da Costa CE, Adriano Santos do Nascimento L, Luque R, and Filho GNDR
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In the original publication [...].
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- 2024
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17. Clinical characteristics and outcomes of COVID-19 patients with preexisting dementia: a large multicenter propensity-matched Brazilian cohort study.
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Bicalho MAC, Aliberti MJR, Delfino-Pereira P, Chagas VS, Rosa PMDS, Pires MC, Ramos LEF, Bezerra AFB, de Castro Feres AB, Dos Reis Gomes AG, Bhering AR, Pessoa BP, Silva CTCAD, Cimini CCR, Suemoto CK, Dias CAC, Carazai DDR, Ponce D, Rios DRA, Manenti E, Anschau F, Batista JDL, Alvarenga JC, Viguini JA, Zanellato JM, Rugolo JM, Ruschel KB, do Nascimento L, Menezes LSM, Oliveira LMC, Castro LC, Nasi LA, Carneiro M, Ferreira MAP, Godoy MF, Guimarães-Júnior MH, Oliveira NR, Ziegelmann PK, Porto PF, Mendes PM, Paraíso PG, Reis PPD, Francisco SC, Araújo SF, Avelino-Silva TJ, and Marcolino MS
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- Humans, Aged, Brazil epidemiology, Cohort Studies, SARS-CoV-2, Inpatients, COVID-19 complications, COVID-19 diagnosis, COVID-19 epidemiology, Sepsis, Dementia diagnosis, Dementia epidemiology, Dementia therapy
- Abstract
Background: Although dementia has emerged as an important risk factor for severe SARS-CoV-2 infection, results on COVID-19-related complications and mortality are not consistent. We examined the clinical presentations and outcomes of COVID-19 in a multicentre cohort of in-hospital patients, comparing those with and without dementia., Methods: This retrospective observational study comprises COVID-19 laboratory-confirmed patients aged ≥ 60 years admitted to 38 hospitals from 19 cities in Brazil. Data were obtained from electronic hospital records. A propensity score analysis was used to match patients with and without dementia (up to 3:1) according to age, sex, comorbidities, year, and hospital of admission. Our primary outcome was in-hospital mortality. We also assessed admission to the intensive care unit (ICU), invasive mechanical ventilation (IMV), kidney replacement therapy (KRT), sepsis, nosocomial infection, and thromboembolic events., Results: Among 1,556 patients included in the study, 405 (4.5%) had a diagnosis of dementia and 1,151 were matched controls. When compared to matched controls, patients with dementia had a lower frequency of dyspnoea, cough, myalgia, headache, ageusia, and anosmia; and higher frequency of fever and delirium. They also had a lower frequency of ICU admission (32.7% vs. 47.1%, p < 0.001) and shorter ICU length of stay (7 vs. 9 days, p < 0.026), and a lower frequency of sepsis (17% vs. 24%, p = 0.005), KRT (6.4% vs. 13%, p < 0.001), and IVM (4.6% vs. 9.8%, p = 0.002). There were no differences in hospital mortality between groups., Conclusion: Clinical manifestations of COVID-19 differ between older inpatients with and without dementia. We observed that dementia alone could not explain the higher short-term mortality following severe COVID-19. Therefore, clinicians should consider other risk factors such as acute morbidity severity and baseline frailty when evaluating the prognosis of older adults with dementia hospitalised with COVID-19., (© 2024. The Author(s).)
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- 2024
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