963 results on '"Lima ML"'
Search Results
102. Spatial Analysis of Tuberculosis Patient Flow in a Neglected Region of Northern Brazil.
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Mesquita CR, da Conceição ML, de Oliveira RAC, Conceição EC, Garcez JCD, Sousa IFR, Lima LNGC, Lima KVB, and de Paula Souza E Guimarães RJ
- Abstract
Tuberculosis (TB) is still considered a priority due to its high incidence rate in Brazil. In this context, we aimed to evaluate the flow of care between the municipalities of patients diagnosed with TB through notification forms of the Information System for Diseases and Notifications (SINAN) in a neglected region of Northern Brazil, Ilha do Marajó, state of Para. For this, we performed a descriptive, retrospective study on data obtained from the National Register of Health Establishments and SINAN from 2013 to 2018. We used Pearson's Chi-square and G Test with p -value < 0.05 for descriptive statistics and spatial analysis technique on flow network analysis. Of the 749 cases, 16.5% were notified in another municipality that was not the patient's residence. Regarding diagnostic methods, a positive bacterioscopy was adopted for 56% of the patients; culture was not performed for 82% of cases. Histopathological examination was not performed in 90% of the individuals. Rapid molecular test (RMT) was performed in only six (5%) cases. The region needs greater attention focused on diagnostic tests, suggesting that the introduction of RMT and culture by Ogawa-Kudoh could improve the region's health network to minimise patient displacement and thus avoid the increase in the transmission chain of TB.
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- 2023
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103. Impact of cash transfer programs on birth and child growth outcomes: systematic review.
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Lisboa CS, Guimarães NS, Ferreira AJF, Silva KBBD, Alves FJO, Rocha ADS, Ortelan N, Texeira CSS, Falcão IR, Silva NJ, Ribeiro-Silva RC, Barbosa D, and Barreto ML
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- Pregnancy, Infant, Newborn, Female, Child, Humans, Child, Preschool, Birth Weight, Infant, Premature, Infant, Low Birth Weight, Parturition
- Abstract
To investigate the impact of cash transfer (CTs) on birth outcomes, including birth weight, low birth weight and prematurity, as well as child physical growth were included, as assessed by anthropometric indices in children under five years of age. Searching was performed using the PubMed/Medline, Embase, LILACS, Cochrane Library, Scopus and Web of Science databases. Quantitative observational, experimental and quasi-experimental. Eleven studies were included in the review. The majority (81.8%) were carried out in low-and middle-income countries and most involved conditional CTs (63.6%). Four were clinical trials and seven were observational studies. Conditional CTs were found to be associated with a reduction in height-for-age (-0.14; 95%CI -0.27, -0.02); (OR 0.85; 95%CI 0.77-0.94); (OR = 0.44; 95%CI 0.19-0.98), a significantly reduced chance of low weight-for-age (OR = 0.16; 95%CI -0.11-0.43), low weight-for-height (OR = -0.68; 95%CI -1.14, -0.21), and low weight-for-age (OR = 0.27; 95%CI 0.10; 0.71). Unconditional CTs were associated with reduced birth weight (RR = 0.71; 95%CI 0.63-0.81; p < 0.0001) and preterm births (RR = 0.76; 95%CI 0.69-0.84; p < 0.0001). Conditional CTs can positively influence birth outcomes and child growth.
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- 2023
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104. Quantitative analysis validation for sclerotherapy treatment of lower limb telangiectasias.
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Bertanha M, Mellucci Filho PL, Genka CA, de Camargo PAB, Grillo VTRDS, Sertório ND, Rodrigues LDS, Sobreira ML, and Lourenção PLTA
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- Humans, Reproducibility of Results, Lower Extremity, Sclerotherapy adverse effects, Telangiectasis diagnosis, Telangiectasis therapy
- Abstract
Background: The evaluation of sclerotherapy efficacy for lower limb telangiectasias, which is the standard treatment for such condition, is commonly assisted by scores based on before and after pictures. This method is marked by its subjectivity, which impairs the precision of studies on the subject, making it unfeasible to evaluate and compare different interventions. We hypothesize that a quantitative method for evaluating the effectiveness of sclerotherapy for lower limb telangiectasias may present more reproducible results. Reliable measurement methods and new technologies may become part of the clinical practice in the near future., Methods: Before and after treatment photographs were analyzed using a quantitative method and compared with a validated qualitative method based on improvement scores. Reliability analysis of the methods was performed, applying the intraclass correlation coefficient (ICC) and kappa coefficient with quadratic weights (Fleiss Cohen), for analysis of inter-examiner and intra-examiner agreement in both evaluation methods. Convergent validity was evaluated by applying the Spearman test. To assess the applicability of the quantitative scale, the Mann-Whitney test was used., Results: A better agreement between examiners is shown for the quantitative scale, with a mean kappa of .3986 (.251-.511) for qualitative analysis and a mean kappa of .788 (.655-.918) for quantitative analysis (P < .001 for all examiners). Convergent validity was achieved by correlation coefficients of .572 to .905 (P < .001). The quantitative scale results obtained between the specialists with different degrees of experience did not show statistical difference (seniors: 0.71 [-0.48/1.00] × juniors: 0.73 [-0.34/1.00]; P = .221)., Conclusions: Convergent validity between both analyses has been achieved, but quantitative analysis has been shown to be more reliable and can be applied by professionals of any degree of experience. The validation of quantitative analysis is a major milestone for the development of new technology and automated, reliable, applications., (Copyright © 2023 Society for Vascular Surgery. Published by Elsevier Inc. All rights reserved.)
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- 2023
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105. Can hard and/or soft occlusal splints reduce the bite force transmitted to the teeth and temporomandibular joint discs? A finite element method analysis.
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Silva CAGD, Grossi ML, Araldi JC, and Corso LL
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- Adult, Male, Humans, Occlusal Splints, Finite Element Analysis, Bite Force, Splints, Temporomandibular Joint physiology, Temporomandibular Joint Disc, Tooth
- Abstract
Objective: To test whether two different materials used for occlusal splints would reduce the stress to the temporomandibular joint discs., Methods: Geometric data from a young-adult male patient were obtained from computed tomography and magnetic resonance imaging. 3D biomodels and the finite element analyses were performed using specific software., Results: The mandibular model presented the highest bone stress areas in the mandibular rami and insertion of the temporalis muscles. Regardless the material, the highest stress in the occlusal splints was located in the second molar regions on the occlusal splint surface and in the opposing mandibular second molars. Stress reduction was only observed in the internal surface of the occlusal splints embracing the maxillary teeth. No differences between occlusal splints were found in the stress intensity and distribution in either left or right TMJ discs, being concentrated more in the anterior portion of the disc., Discussion: Hard acrylic OS should be preferred over soft EVA OS in the majority of cases, soft OS only for temporary use. Thinner OS (2-3 mm anterior thickness) should be preferred over thick ones (3-4 mm) in order to keep the stress concentrations in the center of the TMJ discs. Lighter contacts over heavier contacts should be preferred in the second molar OS contact surface area to prevent stress concentrations and fractures. Maxillary occlusal splints should be chosen if the teeth or implant are in the maxilla, and vice-versa.
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- 2023
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106. Validation of Visual Prostate Symptom Score (VPSS) in Brazilian Sample Population.
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Lopes MHBM, D'Ancona CAL, Moretti TBC, Higa R, Victal ML, Camisão AR, Braga DA, and Reis LO
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- Male, Humans, Aged, Prospective Studies, Reproducibility of Results, Brazil, Surveys and Questionnaires, Prostate, Quality of Life
- Abstract
Purpose: The aim of the study was to evaluate the reliability and validity of the Visual Prostate Symptom Score (VPSS), its correlation with the International Prostate Symptom Score (IPSS), and the time required and need for help when completing the instrument. We also aimed to identify variables associated with difficulty completing these instruments., Design: Longitudinal, prospective correlational study., Subjects and Setting: The target population was Brazilian men from different cities within the state of São Paulo with lower urinary tract symptoms followed in urological consultation at a university hospital during October 2017. The sample comprised 59 patients with a mean age of 66.53 years., Methods: Reliability of the VPSS was evaluated using a test-retest approach and its convergent validity with the IPSS. Cronbach α coefficient was also calculated. Both questionnaires were self-administered and, in case of difficulty of comprehension, assistance was provided., Results: Mean completion time of the IPSS was 6.56 minutes and for VPSS was 5.02 minutes. The variables skin color and educational level were associated with the difficulty in completing the IPSS and for comprehending meaning of the VPSS pictograms. Internal consistency evaluated using Cronbach α coefficient was 0.74 for IPSS and 0.15 for VPSS, respectively. Test-retest reliability testing revealed that both instruments had a high intraclass correlation index (>0.75). There was a significant correlation between the health-related quality of life (QoL) scores of the 2 instruments (0.71, P = .0001) and between the total score of each instrument with its corresponding QoL score., Conclusion: Although time for response of the VPSS was shorter and it demonstrated good test-retest reliability, it more frequently required help to answer. The VPSS showed low internal consistency and low correlation with the IPSS (except for the QoL item)., Competing Interests: The authors have no conflict of interest to declare., (Copyright © 2023 by the Wound, Ostomy and Continence Nurses Society.)
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- 2023
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107. Squamous cell carcinoma on an arteriovenous fistula scar: case report.
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Grillo VTRDS, Mellucci PL, Soares MML, Sertorio ND, Jaldin RG, Sobreira ML, de Campos EBP, and Bertanha M
- Abstract
The main type of access used for hemodialysis is the arteriovenous fistula (AVF) because it offers superior patency and lower complication rates when compared to other hemodialysis accesses. We report the case of a 69-year-old female patient with chronic kidney disease on dialysis secondary to hypertensive nephrosclerosis with a radiocephalic AVF in the left upper limb created 9 years previously. Two years previously, she had undergone a kidney transplant and was taking immunosuppressants. A crusted lesion developed on her left forearm with onset 3 months before presentation and she underwent an excisional biopsy that revealed a well-differentiated and superficially invasive squamous cell carcinoma, with lateral and deep surgical margins free from neoplasia. At 1-year follow-up, the patient showed no signs of neoplastic recurrence., Competing Interests: Conflicts of interest: No conflicts of interest declared concerning the publication of this article., (Copyright© 2023 The authors.)
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- 2023
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108. Case report: Flow changes in routes of collateral circulation in patients with LVO and low NIHSS: a point favor to treat.
- Author
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Dos Santos Neto EP, de Sousa ÍA, Veras AO, de Barros-Araújo ML, Ricarte IF, and Pontes-Neto OM
- Abstract
The effectiveness of endovascular thrombectomy in patients presenting low National Institutes of Health Stroke Scale (NIHSS) scores remains controversial, and the acquisition of additional evidence is required to refine the selection of candidates who may benefit the most from this therapeutic modality. In this study, we present the case of a 62-year-old individual, with left internal carotid occlusion stroke and low NIHSS, who had compensatory collateral flow from Willis polygon via the anterior communicating artery. The patient subsequently exhibited neurological deterioration and collateral flow failure from Willis polygon, indicating the need for urgent intervention. The study of collaterals in patients with large vessel occlusion stroke has garnered considerable attention, with research suggesting that individuals with low NIHSS scores and poor collateral profiles may be at a heightened risk of early neurological deterioration. We postulate that such patients may derive significant benefits from endovascular thrombectomy, and may posit that an intensive transcranial Doppler monitoring protocol could facilitate the identification of suitable candidates for such intervention., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2023 Santos Neto, de Sousa, Veras, Barros-Araújo, Ricarte and Pontes-Neto.)
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- 2023
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109. Public Involvement & Engagement in health inequalities research on COVID-19 pandemic: a case study of CIDACS/FIOCRUZ BAHIA.
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Dos Anjos Fonseca A, Pimenta DM, de Almeida MRS, Lima RT, Barreto ML, and Ichihara MYT
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Introduction: Health inequalities in Brazil have deepened on Covid-19 pandemic, and the most vulnerable people were the more affected. A multidisciplinary team from Cidacs/Fiocruz Bahia developed a Social Disparities Index for Covid-19 (IDS-COVID-19) to support the evaluation of effects of health inequalities on the pandemic in Brazil. Public Involvement and Engagement were the pillars of this research because they allowed us to access first hand experiences about the social context in our country., Objectives: This paper aims to describe our Public Involvement and Engagement experience by analysing our challenges, strategies, activities, results, and lessons learned during the construction of IDS-COVID-19., Methods: The basis of the IDS-Covid-19 public engagement model was the participation of different social groups through methods and techniques that allow dialogue. Several activities and communication products supported the continuous interactions. Another guideline was the inclusion and the welcoming of participants from the beginning of the project to ensure that the participant's contributions could drive decision-making about the research., Results: Participants made several contributions to the research as a new layer of information to the Index, and improvements were made to the interactive panel. They also compromised to support the dissemination and use of the product. Eight representatives of community groups and 29 policymakers participated in our engagement activities during the project. More than 500 people were in our open webinars. In addition, more than 140 news items about IDS-Covid-19 were published in national and international media., Conclusions: We highlight as lessons learned the adaptation of some dissemination formats to the public, and the necessity of being flexible and accessible to participants. We strengthened the relationship with relevant stakeholders by exploring individual conversations by phone, WhatsApp, email, and interviews to produce a documentary that registered this whole experience. Cidacs/Fiocruz Bahia has also embedded public engagement and involvement in the study agenda., Competing Interests: Statement on conflict of interest: The authors have no declarations of interest.
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- 2023
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110. Protein percentage or amino acid profile: which is more important in weight loss diets?
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Apolinário ML, Carneiro FS, and Macêdo APA
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- Humans, Obesity metabolism, Proteins, Dietary Proteins, Body Weight, Amino Acids, Diet, Reducing
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- 2023
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111. Analysis of the influence of surface treatment by high-power laser irradiation on the surface properties of titanium dental implants: A systematic review.
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Simões IG, Dos Reis AC, and da Costa Valente ML
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- Microscopy, Electron, Scanning, Surface Properties, Lasers, Titanium, Dental Implants
- Abstract
Statement of Problem: High-power laser irradiation may be a promising treatment for titanium dental implant surfaces. However, systematic reviews of the influence of high-power laser irradiation on the different properties of titanium surfaces are lacking., Purpose: The purpose of this systematic review was to analyze the influence of surface treatment by high-power laser irradiation on the surface properties of titanium and its alloys., Material and Methods: The PubMed, LILACS, COCHRANE library, and Science Direct databases were searched, and articles published in the last 10 years were included. Of the 725 articles initially identified, 27 were selected after full reading and the application of inclusion and exclusion criteria., Results: The studies evaluated showed that laser irradiation treatment, depending on the settings and parameters used, promoted changes in the surface properties of titanium. In general, lower speed and a higher number of scans increased roughness. Laser surface treatment promoted the inclusion of more oxygen and improved the wetting capacity of titanium. Additionally, laser treatment improved the adherence of coatings., Conclusions: Changes in the surface properties of titanium after laser treatment have been demonstrated. However, determining protocols with specific parameters is necessary to optimize the results., (Copyright © 2021 Editorial Council for the Journal of Prosthetic Dentistry. Published by Elsevier Inc. All rights reserved.)
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- 2023
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112. Combined effects of intermittent fasting with swimming-based high intensity intermittent exercise training in Wistar rats.
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Cardoso ELDS, Cahuê F, Miranda IEF, Sant'Anna ML, Andrade CBV, Barbosa RAQ, Ortiga-Carvalho TM, Vaisman M, and Salerno VP
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- Rats, Animals, Male, Rats, Wistar, Intermittent Fasting, Obesity, Fasting, Swimming, High-Intensity Interval Training methods
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High caloric intake and physical inactivity are known precursors to the development of several chronic metabolic diseases. For obesity and sedentarism, High Intensity Intermittent Exercise (HIIE) and Intermittent Fasting (IF) have emerged as individual strategies to attenuate their negative effects by improving metabolism. To study their combined effects, Wistar male rats (n = 74, 60 days old) were divided into four groups: Sedentary Control (C), swimming-based HIIE only (HIIE), Intermittent Fasting only (IF), and swimming-based HIIE associated with Intermittent Fasting (HIIE/IF). Over an eight-week period swimming performance, body composition, weight and feeding behavior were analyzed. The final morphology of white adipose tissue showed a significant reduction in adipocyte size consistent with a higher number of cells per area in exercised animals (vs C and IF, p < 0.05), which also displayed characteristics of browning through UCP-1 levels and CD31 staining. These results suggest that the increased performance in the HIIE/IF group is, in part, by modifications of WAT metabolism through the browning process., Competing Interests: Declaration of Competing Interest The authors have no conflict of interest., (Copyright © 2023 Elsevier Ltd. All rights reserved.)
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- 2023
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113. Epigenetic targets in B- and T-cell lymphomas: latest developments.
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Ribeiro ML, Sánchez Vinces S, Mondragon L, and Roué G
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Non-Hodgkin's lymphomas (NHLs) comprise a diverse group of diseases, either of mature B-cell or of T-cell derivation, characterized by heterogeneous molecular features and clinical manifestations. While most of the patients are responsive to standard chemotherapy, immunotherapy, radiation and/or stem cell transplantation, relapsed and/or refractory cases still have a dismal outcome. Deep sequencing analysis have pointed out that epigenetic dysregulations, including mutations in epigenetic enzymes, such as chromatin modifiers and DNA methyltransferases (DNMTs), are prevalent in both B- cell and T-cell lymphomas. Accordingly, over the past decade, a large number of epigenetic-modifying agents have been developed and introduced into the clinical management of these entities, and a few specific inhibitors have already been approved for clinical use. Here we summarize the main epigenetic alterations described in B- and T-NHL, that further supported the clinical development of a selected set of epidrugs in determined diseases, including inhibitors of DNMTs, histone deacetylases (HDACs), and extra-terminal domain proteins (bromodomain and extra-terminal motif; BETs). Finally, we highlight the most promising future directions of research in this area, explaining how bioinformatics approaches can help to identify new epigenetic targets in B- and T-cell lymphoid neoplasms., Competing Interests: The authors declared the following potential conflicts of interest with respect to the research, authorship, and/or publication of this article: G. Roué received research funding from TG Therapeutics, Inc. and Kancera AB, to support studies unrelated to this work. The remaining authors have no competing financial interests., (© The Author(s), 2023.)
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- 2023
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114. Trends in tuberculosis mortality among children and adolescents in Brazil, 1996-2020: a joinpoint analysis.
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Peres TG, Castro YM, Corrêa ML, Emmendorfer LR, and Zhang L
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- Humans, Child, Adolescent, Brazil epidemiology, Time Factors, Mortality, Tuberculosis epidemiology
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- 2023
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115. Commentary on "Food addiction, orthorexia nervosa and dietary diversity among Bangladeshi university students: a large online survey during the COVID-19 pandemic".
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Silva Júnior AED, Macena ML, Praxedes DRS, and Bueno NB
- Abstract
The food addiction construct is receiving increasing attention from researchers and clinicians worldwide. Given its rise, scientific production on the subject is increasingly abundant. Conducting studies evaluating food addiction in emerging countries is of great importance, given that most scientific production comes from high-income countries. A recent study aimed to explore the prevalences of orthorexia nervosa and food addiction and their associations with dietary diversity in university students in Bangladesh during the COVID-19 pandemic. This correspondence presents questions about using the older version of the modified Yale Food Addiction Scale to assess food addiction. It also highlights issues related to the prevalence of food addiction observed in the study., (© 2023. The Author(s).)
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- 2023
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116. Maternal and congenital syphilis in Indigenous Peoples: a scoping review of the worldwide literature.
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Cardoso AM, Caldas ADR, Oliveira ES, Paixão ES, Soares MAS, Dos Santos IO, Barreto ML, and Ichihara MYT
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- Female, Humans, Infant, Newborn, Pregnancy, Brazil, Family, Indigenous Peoples, Syphilis epidemiology, Syphilis, Congenital
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Background: Syphilis is among the most common sexually transmitted infections worldwide. When it occurs during pregnancy, it can seriously affect the fetus and newborn`s health. The scarcity of studies on maternal and congenital syphilis in Indigenous Peoples remains an obstacle to its control in these populations. This study aimed to explore the breadth of the literature, map updated evidence, and identify knowledge gaps on maternal and congenital syphilis in Indigenous Peoples worldwide., Methods: We conducted a Scoping review following Preferred Reporting Items for Systematic Reviews and Meta-Analyses - Extension for Scoping Reviews. In March 2021, we collected data through a priority search on PubMed, Web of Science, Embase, and SciELO., Results: The strategy yielded 24 studies for analysis. Data in the articles were collected from 1989 to 2020, half from 2015 onwards. Studies were in Oceania and the Americas, mainly in South America (66.7%), particularly in Brazil (50.0%). The topics assessed were Data quality related to maternal and congenital syphilis (20.8%); Diagnosis, provision, access, and use of health services (62.5%); Disease frequency and health inequities (54.2%); Determinants of maternal syphilis and congenital syphilis (20.8%); and Outcomes of maternal and congenital syphilis in the fetus (20.8%). The results show that the available literature on maternal and congenital syphilis is sparse and concentrated in some geographic areas; the frequency of these diseases in Indigenous Peoples varies but is generally higher than in the non-indigenous counterparts; the quality of surveillance data and health information systems is poor; multiple healthcare barriers exist; and the diversity of terms to identify Indigenous Peoples is a challenge to mapping scientific outputs on Indigenous Peoples' health., Conclusions: Maternal and congenital syphilis in Indigenous Peoples is a double-neglected condition and research in this area should be given the priority and encouragement it deserves globally. Reliable data and improving access to health care are needed to reduce the burden of syphilis and correctly inform policies and health services response to mitigate ethnic-racial inequalities in maternal and congenital syphilis., (© 2023. The Author(s).)
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- 2023
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117. Factors Predicting Adherence to Artistic-Singing Groups for Older Adults and their Role as Moderators of the Intervention Outcomes.
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Galinha IC, Pinal D, and Lima ML
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- Humans, Aged, Loneliness psychology, Affect, Singing
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Objectives: Group singing (GS), as an art-based intervention, has demonstrated a wide range of biopsychosocial benefits in older adult participants. However, the factors that predict the adherence of older adults to these programs and that moderate the intervention outcomes were not yet studied, which is the aim of this study., Methods: A randomized controlled trial was developed to test the efficacy of a GS intervention, from which pre-post intervention data was collected and analyzed. Participants: 149 retired older adults ( M = 76.66, SD = 8,79 years old) users of a social care institution., Results: Principal component analysis of responses to a pre-intervention assessment yielded 10 factors. General well-being (GWB), negative mood and loneliness, blood pressure, and the participants' years of formal education predicted the number of sessions attended by the participants. GWB moderated the intervention's outcomes on life satisfaction, social identification, and systemic inflammation., Conclusions: Years of education, well-being, negative mood and loneliness, and blood pressure at baseline predicted participants' adherence to a singing group artistic intervention., Clinical Implications: For future artistic interventions with older adults, screening for participants' characteristics such as formal education, health and well-being before the intervention is important as it allows predicting adherence and tailoring more adjusted and cost-effective interventions.
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- 2023
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118. Oral carcinogenesis triggers a nociceptive behavior and c-Fos expression in rats' trigeminal pathway.
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Alves JMDS, Viana KF, Pereira AF, Lima Júnior RCP, Vale ML, Pereira KMA, and Gondim DV
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- Rats, Animals, Rats, Wistar, Nociception, Proto-Oncogene Proteins c-fos analysis, Proto-Oncogene Proteins c-fos metabolism, Carcinogenesis, Carcinoma, Squamous Cell chemically induced, Mouth Neoplasms chemically induced
- Abstract
Objective: To recognize changes that occur along the trigeminal pathway in oral cancer in order to establish an effective approach to pain control., Methods: Wistar rats were divided into control and 4-NQO groups for 8, 12, 16, or 20 weeks. 4-NQO suspension was administered on the animals' tongues. Mechanical hyperalgesia, assessment of facial expressions, and an open-field test were performed. After euthanasia, the animals' tongues were removed for macro- and microscopic analysis. c-Fos expression was analyzed in the trigeminal pathway structures., Results: 4-NQO induced time-dependent macroscopic lesions that were compatible with neoplastic tumors. Histopathological analysis confirmed oral squamous cell carcinoma in 50% of the animals on the 20th week. There was a significant nociceptive threshold reduction during the first two weeks, followed by a threshold return to the baseline levels, decreasing again from the 12th week. Facial nociceptive expression scores were observed on the 20th week, while increased grooming and exploratory activity were observed on the 8th week. Trigeminal ganglion showed an increased c-Fos immunoexpression on the 20th week, and in the trigeminal subnucleus caudalis, it occurred on the 16th and 20th. The long-term carcinogenic exposure caused changes in the nociceptive behavior and c-Fos expression in the rats' trigeminal pathway., (© 2022 Wiley Periodicals LLC.)
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- 2023
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119. Influence of CBCT parameters on image quality and the diagnosis of vertical root fractures in teeth with metallic posts: an ex vivo study.
- Author
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Lagos de Melo LP, Queiroz PM, Moreira-Souza L, Nadaes MR, Santaella GM, Oliveira ML, and Freitas DQ
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Objectives: The aim of this study was to evaluate the influence of peak kilovoltage (kVp) and a metal artifact reduction (MAR) tool on image quality and the diagnosis of vertical root fracture (VRF) in cone-beam computed tomography (CBCT)., Materials and Methods: Twenty single-rooted human teeth filled with an intracanal metal post were divided into 2 groups: control ( n = 10) and VRF ( n = 10). Each tooth was placed into the socket of a dry mandible, and CBCT scans were acquired using a Picasso Trio varying the kVp (70, 80, 90, or 99), and the use of MAR (with or without). The examinations were assessed by 5 examiners for the diagnosis of VRF using a 5-point scale. A subjective evaluation of the expression of artifacts was done by comparing random axial images of the studied protocols. The results of the diagnoses were analyzed using 2-way analysis of variance and the Tukey post hoc test, the subjective evaluations were compared using the Friedman test, and intra-examiner reproducibility was evaluated using the weighted kappa test (α = 5%)., Results: The kVp and MAR did not influence the diagnosis of VRF ( p > 0.05). According to the subjective classification, the 99 kVp protocol with MAR demonstrated the least expression of artifacts, while the 70 kVp protocol without MAR led to the most artifacts., Conclusions: Protocols with higher kVp combined with MAR improved the image quality of CBCT examinations. However, those factors did not lead to an improvement in the diagnosis of VRF., Competing Interests: Conflict of Interest: No potential conflict of interest relevant to this article was reported., (Copyright © 2023. The Korean Academy of Conservative Dentistry.)
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- 2023
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120. Premature mortality due to noncommunicable diseases in Brazilian capitals: redistribution of garbage causes and evolution by social deprivation strata.
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Malta DC, Teixeira RA, Cardoso LSM, Souza JB, Bernal RTI, Pinheiro PC, Gomes CS, Leyland A, Dundas R, and Barreto ML
- Abstract
Objective: To analyze premature mortality due to noncommunicable chronic diseases (NCDs) in Brazilian capitals and the Federal District (DF) after redistribution of garbage causes and the temporal evolution according to social deprivation strata in the 2010 to 2012 and 2017 to 2019 triennia., Methods: Corrections were applied to the Mortality Information System (Sistema de Informação sobre Mortalidade - SIM) data such as the redistribution of garbage codes (GC). Premature mortality rates due to NCDs were calculated and standardized by age. The differences among NCDs mortality rates were analyzed according to the Brazilian Deprivation Index (Índice Brasileiro de Privação - IBP) categories and between the three-year periods., Results: In the capitals as a whole, rates increased between 8 and 12% after GC redistribution and the greatest increases occurred in areas of high deprivation: 11.9 and 11.4%, triennia 1 and 2, respectively. There was variability between the capitals. There was a reduction in rates in all strata of deprivation between the three-year periods, with the greatest decrease in the stratum of low deprivation (-18.2%) and the lowest in the stratum of high deprivation (-7.5%)., Conclusion: The redistribution of GC represented an increase in mortality rates, being higher in the strata of greater social deprivation. As a rule, a positive gradient of mortality was observed with increasing social deprivation. The analysis of the temporal evolution showed a decrease in mortality from NCDs between the triennia, especially in areas of lower social deprivation.
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- 2023
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121. G protein-coupled receptor 183 mediates the sensitization of Burkitt lymphoma tumors to CD47 immune checkpoint blockade by anti-CD20/PI3Kδi dual therapy.
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Ribeiro ML, Profitós-Pelejà N, Santos JC, Blecua P, Reyes-Garau D, Armengol M, Fernández-Serrano M, Miskin HP, Bosch F, Esteller M, Normant E, and Roué G
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- Chick Embryo, Humans, Mice, Animals, Immune Checkpoint Inhibitors therapeutic use, CD47 Antigen, Disease Models, Animal, Receptors, G-Protein-Coupled, Burkitt Lymphoma, Neoplasms metabolism, Lymphoma, B-Cell drug therapy, Antibodies, Bispecific pharmacology, Antibodies, Bispecific therapeutic use
- Abstract
Background: Immunotherapy-based regimens have considerably improved the survival rate of B-cell non-Hodgkin lymphoma (B-NHL) patients in the last decades; however, most disease subtypes remain almost incurable. TG-1801, a bispecific antibody that targets CD47 selectively on CD19+ B-cells, is under clinical evaluation in relapsed/refractory (R/R) B-NHL patients either as a single-agent or in combination with ublituximab, a new generation CD20 antibody., Methods: A set of eight B-NHL cell lines and primary samples were cultured in vitro in the presence of bone marrow-derived stromal cells, M2-polarized primary macrophages, and primary circulating PBMCs as a source of effector cells. Cell response to TG-1801 alone or combined with the U2 regimen associating ublituximab to the PI3Kδ inhibitor umbralisib, was analyzed by proliferation assay, western blot, transcriptomic analysis (qPCR array and RNA sequencing followed by gene set enrichment analysis) and/or quantification of antibody-dependent cell death (ADCC) and antibody-dependent cell phagocytosis (ADCP). CRISPR-Cas9 gene edition was used to selectively abrogate GPR183 gene expression in B-NHL cells. In vivo, drug efficacy was determined in immunodeficient (NSG mice) or immune-competent (chicken embryo chorioallantoic membrane (CAM)) B-NHL xenograft models., Results: Using a panel of B-NHL co-cultures, we show that TG-1801, by disrupting the CD47-SIRPα axis, potentiates anti-CD20-mediated ADCC and ADCP. This led to a remarkable and durable antitumor effect of the triplet therapy composed by TG-1801 and U2 regimen, in vitro , as well as in mice and CAM xenograft models of B-NHL. Transcriptomic analysis also uncovered the upregulation of the G protein-coupled and inflammatory receptor, GPR183, as a crucial event associated with the efficacy of the triplet combination. Genetic depletion and pharmacological inhibition of GPR183 impaired ADCP initiation, cytoskeleton remodeling and cell migration in 2D and 3D spheroid B-NHL co-cultures, and disrupted macrophage-mediated control of tumor growth in B-NHL CAM xenografts., Conclusions: Altogether, our results support a crucial role for GPR183 in the recognition and elimination of malignant B cells upon concomitant targeting of CD20, CD47 and PI3Kδ, and warrant further clinical evaluation of this triplet regimen in B-NHL., Competing Interests: Authors HP and EN were employed by company TG Therapeutics. The authors declare that this study received funding from TG Therapeutics. The funder had the following involvement in the study: study design, data validation and manuscript preparation. HM reports personal fees from TG Therapeutics, Inc. during the conduct of the study. EN reports employment and ownership of stock with TG Therapeutics. GR reports grants from TG Therapeutics and Instituto de Salud Carlos III during the conduct of the study. The remaining authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2023 Ribeiro, Profitós-Pelejà, Santos, Blecua, Reyes-Garau, Armengol, Fernández-Serrano, Miskin, Bosch, Esteller, Normant and Roué.)
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- 2023
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122. The shared molecular mechanisms underlying aging of the brain, major depressive disorder, and Alzheimer's disease: The role of circadian rhythm disturbances.
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Amidfar M, Garcez ML, and Kim YK
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- Humans, Circadian Rhythm physiology, Brain, Alzheimer Disease, Depressive Disorder, Major
- Abstract
An association with circadian clock function and pathophysiology of aging, major depressive disorder (MDD), and Alzheimer's disease (AD) is well established and has been proposed as a factor in the development of these diseases. Depression and changes in circadian rhythm have been increasingly suggested as the two primary overlapping and interpenetrating changes that occur with aging. The relationship between AD and depression in late life is not completely understood and probably is complex. Patients with major depression or AD suffer from disturbed sleep/wake cycles and altered rhythms in daily activities. Although classical monoaminergic hypotheses are traditionally proposed to explain the pathophysiology of MDD, several clinical and preclinical studies have reported a strong association between circadian rhythm and mood regulation. In addition, a large body of evidence supports an association between disruption of circadian rhythm and AD. Some clock genes are dysregulated in rodent models of depression. If aging, AD, and MDD share a common biological basis in pathophysiology, common therapeutic tools could be investigated for their prevention and treatment. Nitro-oxidative stress (NOS), for example, plays a fundamental role in aging, as well as in the pathogenesis of AD and MDD and is associated with circadian clock disturbances. Thus, development of therapeutic possibilities with these NOS-related conditions is advisable. This review describes recent findings that link disrupted circadian clocks to aging, MDD, and AD and summarizes the experimental evidence that supports connections between the circadian clock and molecular pathologic factors as shared common pathophysiological mechanisms underlying aging, AD, and MDD., Competing Interests: Declaration of Competing Interest The authors declare no conflict of interest to report., (Copyright © 2023 Elsevier Inc. All rights reserved.)
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- 2023
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123. Previous BCG vaccination is associated with less severe clinical progression of COVID-19.
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Pereira SM, Barreto FR, de Souza RA, de Souza Teles Santos CA, Pereira M, da Paixão ES, de Jesus Lima CCO, da Natividade MS, Lindoso AABP, Fernandes EG, Junior EBC, Pescarini JM, de Andrade KVF, de Souza FM, de Britto EA, Nunes C, Ichihara MY, Dalcolmo M, Trajman A, Barral-Netto M, Abubakar I, Barreto ML, de Alencar Ximenes RA, and Rodrigues LC
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- Humans, Aged, BCG Vaccine, SARS-CoV-2, COVID-19 Vaccines, Case-Control Studies, Vaccination, Disease Progression, COVID-19 prevention & control
- Abstract
Background: BCG vaccination, originally used to prevent tuberculosis, is known to "train" the immune system to improve defence against viral respiratory infections. We investigated whether a previous BCG vaccination is associated with less severe clinical progression of COVID-19 METHODS: A case-control study comparing the proportion with a BCG vaccine scar (indicating previous vaccination) in cases and controls presenting with COVID-19 to health units in Brazil. Cases were subjects with severe COVID-19 (O2 saturation < 90%, severe respiratory effort, severe pneumonia, severe acute respiratory syndrome, sepsis, and septic shock). Controls had COVID-19 not meeting the definition of "severe" above. Unconditional regression was used to estimate vaccine protection against clinical progression to severe disease, with strict control for age, comorbidity, sex, educational level, race/colour, and municipality. Internal matching and conditional regression were used for sensitivity analysis., Results: BCG was associated with high protection against COVID-19 clinical progression, over 87% (95% CI 74-93%) in subjects aged 60 or less and 35% (95% CI - 44-71%) in older subjects., Conclusions: This protection may be relevant for public health in settings where COVID-19 vaccine coverage is still low and may have implications for research to identify vaccine candidates for COVID-19 that are broadly protective against mortality from future variants. Further research into the immunomodulatory effects of BCG may inform COVID-19 therapeutic research., (© 2023. The Author(s).)
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- 2023
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124. Ischemic stroke caused by large-artery atherosclerosis: a red flag for subclinical coronary artery disease.
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de Araújo ALV, Santos RD, Bittencourt MS, Dantas RN Jr, Oshiro CA, Nomura CH, Bor-Seng-Shu E, Oliveira ML, Leite CDC, Martin MDGM, Alves MM, Silva GS, Silva VM, and Conforto AB
- Abstract
Background: The coronary calcium score (CAC) measured on chest computerized tomography is a risk marker of cardiac events and mortality. We compared CAC scores in two multiethnic groups without symptomatic coronary artery disease: subjects in the chronic phase after stroke or transient ischemic attack and at least one symptomatic stenosis ≥50% in the carotid or vertebrobasilar territories (Group
athero ) and a control group (Groupcontrol )., Methods: In this cross-sectional study, Groupathero included two subgroups: GroupExtraorIntra , with stenoses in either cervical or intracranial arteries, and GroupExtra&Intra , with stenoses in at least one cervical and one intracranial artery. Groupcontrol had no history of prior stroke/transient ischemic attacks and no stenoses ≥50% in cervical or intracranial arteries. Age and sex were comparable in all groups. Frequencies of CAC ≥100 and CAC > 0 were compared between Groupathero and Groupcontrol , as well as between GroupExtraorIntr , GroupExtra&Intra , and Groupcontrol , with bivariate logistic regressions. Multivariate analyses were also performed., Results: A total of 120 patients were included: 80 in Groupathero and 40 in Groupcontrol. CAC >0 was significantly more frequent in Groupathero (85%) than Groupcontrol (OR, 4.19; 1.74-10.07; p = 0.001). Rates of CAC ≥100 were not significantly different between Groupathero and Groupcontrol but were significantly greater in GroupExtra&Intra ( n = 13) when compared to Groupcontrol (OR 4.67; 1.21-18.04; p = 0.025). In multivariate-adjusted analyses, "Groupathero " and "GroupExtra&Intra " were significantly associated with CAC., Conclusion: The frequency of coronary calcification was higher in subjects with stroke caused by large-artery atherosclerosis than in controls., Competing Interests: RS has received honoraria related to consulting, research and or speaker activities from: Amgen, Aché, Astra Zeneca, Esperion, Kowa, Merck, Novo-Nordisk, PTC, Pfizer, and Sanofi/Regeneron. MB has received speaker fees from GE healthcare. The remaining authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2023 de Araújo, Santos, Bittencourt, Dantas, Oshiro, Nomura, Bor-Seng-Shu, Oliveira, Leite, Martin, Alves, Silva, Silva and Conforto.)- Published
- 2023
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125. Modeling the dynamics of contractual relations.
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Griffo C, Araujo LC, Meira Brasil S Jr, Marques ML, Guizzardi G, and Almeida JPA
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Contracts usually have clauses that enable contracted parties to adjust their contractual positions in time, e.g., to relieve another party from duty or to grant new permission. This is especially important in long-running service relations, which require contracts to be adjusted to accommodate new or unforeseen circumstances. Despite that, the representation of dynamic aspects of contractual relations has not been given enough attention in the literature. In this study, we address this gap by employing the notions of legal power and legal subjection. We propose an ontological analysis of unilateral contractual changes based on a well-founded legal core ontology that adopts a relational perspective for legal positions. We present a case study to show the benefits of representing different types of contractual changes and how these changes can impact contractual dynamics. The case study is based on recent changes to WhatsApp terms of service., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2023 Griffo, Araujo, Meira Brasil, Marques, Guizzardi and Almeida.)
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- 2023
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126. Vitamin D3 improves spatial memory and modulates cytokine levels in aged rats.
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Bellettini-Santos T, Garcez ML, Mina F, Magnus NQ, Pereira NS, Marques AO, Keller GS, Zabot GC, do Nascimento NB, Medeiros EB, Rempel LCT, Kucharska E, Frizon TEA, Dal-Bó AG, and Budni J
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- Rats, Male, Animals, Cytokines, Interleukin-10, Rats, Wistar, Interleukin-6, Spatial Memory, Tumor Necrosis Factor-alpha, Anti-Inflammatory Agents, Cholecalciferol pharmacology, Cholecalciferol therapeutic use, Vitamin D Deficiency
- Abstract
Vitamin D3 deficiency is associated with an increased risk of dementia. An association between vitamin D3 deficiency and subjective cognitive complaints in geriatric patients has been previously reported. This study aimed to evaluate the effects of two doses of vitamin D3 on spatial memory (using the Radial Maze) and cytokine levels [tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β), interleukin-6 (IL-6), and interleukin-10 (IL-10)] on 2-, 6-, 13-, 22-, and 31-month-old male Wistar rats. Animals were supplemented with vitamin D3 at doses of 42 IU/kg and 420 IU/kg for 21 days. A radial maze test was performed to evaluate spatial memory. After the behavioral test, the frontal cortex and hippocampus were dissected for enzyme immunoassay analyses to measure the cytokine levels (TNFα, IL-1β, IL-6, and IL-10). Our results showed that vitamin D3 supplementation reversed spatial memory impairment at the supplemented doses (42 and 420 IU/kg) in 6-, 13-, and 22-month-old animals and at a dose of 420 IU/kg in 31-month-old animals. The lower dose (42 IU/kg) regulates both pro- and anti-inflammatory cytokines mainly in the frontal cortex. Our results suggest that vitamin D3 has a modulatory action on pro- and anti-inflammatory cytokines, since older animals showed increased cytokine levels compared to 2-month-old animals, and that vitamin D3 may exert an immunomodulatory effect on aging., (© 2023. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.)
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- 2023
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127. Letter to the editor: The use of resting energy expenditure divided by body weight (kcal/kg) may yield inconsistencies and should be avoided.
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Macena ML and Bueno NB
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- Humans, Body Weight, Basal Metabolism, Body Composition, Energy Metabolism
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Competing Interests: Conflicts of interest The authors have no conflicts of interest to report.
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- 2023
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128. Visible intestinal peristalsis and chronic diarrhea due to a rare lymphoproliferative disease.
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Assis-Mendoça GR, Paula RV, Roversi FM, Bueno ML, Silva ACFD, Montes CG, Vassallo J, and Cunha-Silva M
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- Male, Humans, Middle Aged, Diarrhea etiology, Intestines, Peristalsis, Intestinal Obstruction
- Abstract
We present the case of a 45-year-old man with watery diarrhea for 2 years, leading to marked weight loss (52 kg). On admission, the patient presented with pallor, dehydration and cachexia. Abdominal examination revealed increased bowel sounds, painful and visible intestinal peristalsis, suggesting intestinal obstruction. There was no response to a gluten-free diet and nutritional support. Finally, the patient developed pulmonary infection, septic shock and died 3 months after admission. The diagnosis of CD4+/CD8+ indolent T-cell lymphoma of the GI tract was made post-mortem.
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- 2023
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129. Clear aligner mandibular advancement in growing patients with Class II malocclusion.
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Gurgel ML, de Oliveira Ruellas AC, Bianchi J, McNamara JA Jr, Tai S, Franchi L, Deleat-Besson R, Le C, Logan C, Turkestani NA, Massaro C, Del Castillo AA, Arruda KEM, Benavides E, Yatabe M, and Cevidanes L
- Abstract
Treatment effects occurring during Class II malocclusion treatment with the clear aligner mandibular advancement protocol were evaluated in two growing patients: one male (12 years, 3 months) and one female (11 years, 9 months). Both patients presented with full cusp Class II molar and canine relationships. Intraoral scans and cone-beam computed tomography were acquired before treatment and after mandibular advancement. Three-dimensional skeletal and dental long-axis changes were quantified, in which the dental long axis was determined by registering the dental crowns obtained from intraoral scans to the root canals in cone-beam computed tomography scans obtained at the same time points. Class II correction was achieved by a combination of mandibular skeletal and dental changes. A similar direction of skeletal and dental changes was observed in both patients, with downward and forward displacement of the mandible resulting from the growth of the mandibular condyle and ramus. Dental changes in both patients included mesialization of the mandibular posterior teeth with flaring of mandibular anterior teeth. In these two patients, clear aligner mandibular advancement was an effective treatment modality for Class II malocclusion correction with skeletal and dental effects and facial profile improvement., Competing Interests: CONFLICTS OF INTEREST All authors have completed and submitted the ICMJE Form for Disclosure of Potential Conflicts of Interest, and none were reported.
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- 2023
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130. The Molecular Mechanism of Polyphenols in the Regulation of Ageing Hallmarks.
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Pereira QC, Dos Santos TW, Fortunato IM, and Ribeiro ML
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- Humans, Cellular Senescence, Oxidative Stress, Life Expectancy, Polyphenols pharmacology, Polyphenols therapeutic use, Aging genetics
- Abstract
Ageing is a complex process characterized mainly by a decline in the function of cells, tissues, and organs, resulting in an increased risk of mortality. This process involves several changes, described as hallmarks of ageing, which include genomic instability, telomere attrition, epigenetic changes, loss of proteostasis, dysregulated nutrient sensing, mitochondrial dysfunction, cellular senescence, stem cell depletion, and altered intracellular communication. The determining role that environmental factors such as diet and lifestyle play on health, life expectancy, and susceptibility to diseases, including cancer and neurodegenerative diseases, is wellestablished. In view of the growing interest in the beneficial effects of phytochemicals in the prevention of chronic diseases, several studies have been conducted, and they strongly suggest that the intake of dietary polyphenols may bring numerous benefits due to their antioxidant and anti-inflammatory properties, and their intake has been associated with impaired ageing in humans. Polyphenol intake has been shown to be effective in ameliorating several age-related phenotypes, including oxidative stress, inflammatory processes, impaired proteostasis, and cellular senescence, among other features, which contribute to an increased risk of ageing-associated diseases. This review aims to address, in a general way, the main findings described in the literature about the benefits of polyphenols in each of the hallmarks of ageing, as well as the main regulatory mechanisms responsible for the observed antiageing effects.
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- 2023
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131. Methodological parameters for upper airway assessment by cone-beam computed tomography in adults with obstructive sleep apnea: a systematic review of the literature and meta-analysis.
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Gurgel ML, Junior CC, Cevidanes LHS, de Barros Silva PG, Carvalho FSR, Kurita LM, Cunha TCA, Dal Fabbro C, and Costa FWG
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- Humans, Adult, Nose, Posture, Cone-Beam Computed Tomography, Sleep Apnea, Obstructive diagnostic imaging
- Abstract
Background: A reliable method for analyzing the upper airway (UA) remains a challenge. This study aimed to report the methods for UA assessment using cone-beam computed tomography (CBCT) in adults with obstructive sleep apnea (OSA)., Methods: We performed a systematic review (PROSPERO #CRD42021237490 and PRISMA checklist) that applied a search strategy to seven databases and grey literature., Results: In 29 studies with moderate-to-high risk of bias, investigators mostly reported the body position during CBCT (upright or supine) and hard tissue references, diverging in UA delimitation and terminologies. The meta-analysis showed two subgroups (upright and supine), and no statistical differences were identified (p = 0.18) considering the UA area. The volume in the OSA group was smaller than that in the control group (p < 0.003 and Cohen's d = - 0.81) in the upright position. Patients with OSA showed smaller anteroposterior dimensions than the control group and were not affected by the position during image acquisition (p = 0.02; Cohen's d = - 0.52). The lateral measurements were also lower in the OSA group (supine) (p = 0.002; Cohen's d = - 0.6)., Conclusions: Patients with OSA showed smaller UA measurements in the upright (volume) and supine (lateral dimension) positions. The anteroposterior dimension was also reduced in patients with OSA compared to the control group, regardless of the position during CBCT acquisition., (© 2022. The Author(s), under exclusive licence to Springer Nature Switzerland AG.)
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- 2023
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132. IgA Vasculitis with scrotal involvement - a rare presentation in adults.
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Viegas AF, Lopes A, Pereira S, Almeida CC, Costa ML, and Tavares JP
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IgA vasculitis (IgAV) is a small-vessel vasculitis common in children but rare in adults. It is usually an auto-limited disease in children but has a more severe course and worse prognosis in adults. The classical manifestations are non-thrombocytopenic purpura, arthralgias, gastrointestinal involvement and renal involvement. Herein we report a case of a 39-year-old man with a rash of the lower limbs associated with testicular and lower abdominal pain. The initial study revealed increased inflammatory biomarkers and enlarged left testis with bilateral ischemic areas on doppler ultrasound. A cutaneous biopsy later revealed leukocytoclastic vasculitis, confirming the diagnosis of IgAV with scrotal involvement. The patient started prednisolone, with improvement in the first week and sustained remission after two years of follow-up. This case report describes an adult with IgAV and scrotal involvement, which is rarely reported in adults and appears to be different from the one in children. The prevalence of scrotal involvement is presumably underestimated. In all men with IgAV, a scrotal examination should be performed and ultrasonography accordingly since it affects the treatment and follow-up. Recommendations for IgAV diagnosis and treatment in adults are still lacking and more research is needed.
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- 2023
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133. Health is democracy: diversity, equity, and social justice.
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Onocko-Campos RT, Pinto ICM, and Barreto ML
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- Humans, Brazil, Social Justice, Democracy, Health Equity
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- 2023
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134. Dipotassium Glycyrrhizininate Improves Skin Wound Healing by Modulating Inflammatory Process.
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Leite CDS, Bonafé GA, Pires OC, Santos TWD, Pereira GP, Pereira JA, Rocha T, Martinez CAR, Ortega MM, and Ribeiro ML
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- Animals, Male, Rats, Cytokines metabolism, Granulation Tissue metabolism, Rats, Wistar, Skin metabolism, Anti-Inflammatory Agents pharmacology, Anti-Inflammatory Agents therapeutic use, Glycyrrhizic Acid pharmacology, Glycyrrhizic Acid therapeutic use, Wound Healing drug effects
- Abstract
Wound healing is characterized by a systemic and complex process of cellular and molecular activities. Dipotassium Glycyrrhizinate (DPG), a side product derived from glycyrrhizic acid, has several biological effects, such as being antiallergic, antioxidant, antibacterial, antiviral, gastroprotective, antitumoral, and anti-inflammatory. This study aimed to evaluate the anti-inflammatory effect of topical DPG on the healing of cutaneous wounds by secondary intention in an in vivo experimental model. Twenty-four male Wistar rats were used in the experiment, and were randomly divided into six groups of four. Circular excisions were performed and topically treated for 14 days after wound induction. Macroscopic and histopathological analyses were performed. Gene expression was evaluated by real-time qPCR. Our results showed that treatment with DPG caused a decrease in the inflammatory exudate as well as an absence of active hyperemia. Increases in granulation tissue, tissue reepithelization, and total collagen were also observed. Furthermore, DPG treatment reduced the expression of pro-inflammatory cytokines ( Tnf-α , Cox-2 , Il-8 , Irak-2 , Nf-kB , and Il-1 ) while increasing the expression of Il-10 , demonstrating anti-inflammatory effects across all three treatment periods. Based on our results, we conclude that DPG attenuates the inflammatory process by promoting skin wound healing through the modulation of distinct mechanisms and signaling pathways, including anti-inflammatory ones. This involves modulation of the expression of pro- and anti-inflammatory cytokine expression; promotion of new granulation tissue; angiogenesis; and tissue re-epithelialization, all of which contribute to tissue remodeling.
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- 2023
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135. Grayscale median (GSM) post-processing, posterizing, and color mapping for carotid ultrasound.
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Mellucci PL, Bertanha M, Jaldin RG, Yoshida WB, and Sobreira ML
- Abstract
Factors related to atherosclerotic plaques may indicate instability, such as ulcerations, intraplaque hemorrhages, lipid core, thin or irregular fibrous cap, and inflammation. The grayscale median (GSM) value is one of the most widespread methods of studying atherosclerotic plaques and it is therefore important to comprehensively standardize image post-processing. Post-processing was performed using Photoshop 23.1.1.202. Images were standardized by adjusting the grayscale histogram curves, setting the darkest point of the vascular lumen (blood) to zero and the distal adventitia to 190. Posterization and color mapping were performed. A methodology that presents the current state of the art in an accessible and illustrative way should contribute to the dissemination of GSM analysis. This article describes and illustrates the process step by step., Competing Interests: Conflicts of interest: No conflicts of interest declared concerning the publication of this article., (Copyright© 2023 The authors.)
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- 2023
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136. Comparative study of angiographic changes in diabetic and non-diabetic patients with peripheral arterial disease.
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Trainotti GO, Mariúba JV, Bertanha M, Sobreira ML, Yoshida RA, Jaldin RG, de Camargo PAB, and Yoshida WB
- Abstract
Background: Diabetics are at 5-15 times greater risk of developing peripheral arterial disease (PAD) and few studies have compared risk factors and distribution and severity of arterial changes in diabetics compared with non-diabetics., Objectives: To compare angiographic changes between diabetic and non-diabetic patients with advanced PAD and correlate them with risk factors., Methods: A retrospective cross-sectional study was conducted of consecutive patients undergoing lower limb arteriography for PAD (Rutherford 3-6) using TASC II and Bollinger et al. angiographic scores. Exclusion criteria were upper limb angiographies, unclear images, incomplete laboratory test results, and previous arterial surgeries. Statistical analyses included chi-square tests, Fisher's test for discrete data, and Student's t test for continuous data (significance level: p < 0.05)., Results: We studied 153 patients with a mean age of 67 years, 50.9% female and 58.2% diabetics. A total of 91 patients (59%) had trophic lesions (Rutherford 5 or 6) and 62 (41%) had resting pain or limiting claudication (Rutherford 3 and 4). Among diabetics, 81.7% were hypertensive, 29.4% had never smoked, and 14% had a history of acute myocardial infarction. According to the Bollinger et al. score, infra-popliteal arteries were more affected in diabetics, especially the anterior tibial artery (p = 0.005), while the superficial femoral artery was more affected in non-diabetics (p = 0.008). According to TASC II, the most severe angiographic changes in the femoral-popliteal segment occurred in non-diabetic patients (p = 0.019)., Conclusions: The most frequently affected sectors were the infra-popliteal sectors in diabetics and the femoral sector in non-diabetics., Competing Interests: Conflicts of interest: No conflicts of interest declared concerning the publication of this article., (Copyright© 2022 The authors.)
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- 2023
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137. [Analysis of the structuring of the Health Care Network in the State of Mato Grosso, Brazil, within the context of Regionalization].
- Author
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Martinelli NL, Scatena JHG, Castro ML, Soares NRF, Charbel SC, Souza NFDS, Medeiros ARS, and Souza DPO
- Subjects
- Humans, Brazil, Cities, Health Workforce, Delivery of Health Care organization & administration
- Abstract
The article analyzes aspects of the structuring of the health care network in the regions of the State of Mato Grosso, and the narrative about them, by institutional actors representing management, service providers and society. It is based on research on governance and regionalization of the SUS in this state, with a quantitative and qualitative approach, the empirical basis of which included secondary data, institutional documents and interviews with key actors representing management, service providers and society. In this research, the focus was on coverage of the Family Health Strategy; availability of health services; workforce; expenses on health. Between 2010 and 2018, despite the improvement of several indicators examined: the supply and distribution of services and professionals reveal regional inequalities; there are financial limitations and a lack of services and professionals. The Health Care Network (HCN) is not structured as regulated, but rather as each region - and its municipalities - interprets and adapts it, according to its installed capacity. The PHC network has promoted advances, but it has not been able to be effective and resolute in terms of health needs, not providing care properly nor coordinating the HCN.
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- 2023
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138. Comments on "dietary intakes among people with vs without food addiction: A systematic review and meta-analysis".
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Silva Júnior AED, Macena ML, and Bueno NB
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- Humans, Eating, Diet, Food Addiction
- Abstract
Competing Interests: Conflict of interest The authors have no conflicts of interest to report.
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- 2023
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139. Inflammatory stimulus worsens the effects of UV-A exposure on J774 cells.
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Chiarelli-Neto O, Garcez ML, Pavani C, Martins W, de Abreu Quintela Castro FC, Ambrosio RP, Meotti FC, and Baptista MS
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- Humans, Reactive Oxygen Species metabolism, Skin radiation effects, Cytokines metabolism, Oxidative Stress, Lipopolysaccharides pharmacology
- Abstract
UV-A radiation affects skin homeostasis by promoting oxidative distress. Endogenous photosensitizers in the dermis and epidermis of human skin absorb UV-A radiation forming excited states (singlet and triplet) and reactive oxygen species (ROS) producing oxidized compounds that trigger biological responses. The activation of NF-kB induces the expression of pro-inflammatory cytokines and can intensify the generation of ROS. However, there is no studies evaluating the cross talks between inflammatory stimulus and UV-A exposure on the levels of redox misbalance and inflammation. In here, we evaluated the effects of UV-A exposure on J774 macrophage cells previously challenged with LPS in terms of oxidative distress, release of pro-inflammatory cytokines, and activation of regulated cell death pathways. Our results showed that LPS potentiates the dose-dependent UV-A-induced oxidative distress and cytokine release, in addition to amplifying the regulated (autophagy and apoptosis) and non-regulated (necrosis) mechanisms of cell death, indicating that a previous inflammatory stimulus potentiates UV-A-induced cell damage. We discuss these results in terms of the current-available skin care strategies., Competing Interests: Declaration of Competing Interest The authors state no conflict of interest., (Copyright © 2023 Elsevier B.V. All rights reserved.)
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- 2023
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140. Bacillus strains prevent lipopolysaccharide-induced inflammation in gut and blood of male mice.
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Pesarico AP, Jesus GFA, Córneo E, Borges HM, Calixto KV, Garcez ML, Bellettini-Santos T, Voytena APL, Rossetto M, Ramlov F, Dal-Pizzol F, and Michels M
- Subjects
- Animals, Mice, Male, Lipopolysaccharides, Peroxidase, Nitrites, Inflammation chemically induced, Inflammation prevention & control, Bacillus, Probiotics pharmacology
- Abstract
Aims: The protective effects of Bacillus amyloliquefaciens(CCT7935), Bacillus subtilis(CCT7935), Bacillus licheniformis (CCT 7836), and Bacillus coagulans (CCT 0199) against lipopolysaccharide (LPS)-induced intestinal inflammation were investigated., Methods and Results: Male Swiss mice were assigned into six groups: control group, LPS group, LPS + B. subtilis (CCT7935) group, LPS + B. licheniformis (CCT 7836) group, LPS + B. amyloliquefaciens (CCT7935) group, and LPS + B. coagulans (CCT 0199) group. Each mouse of the groups Bacillus received 1 × 109 colony-forming units of Bacillus once daily by oral gavage during 30 days. Twenty-four hours after the last dose of Bacillus, all groups, except the control group, were intraperitoneally injected with LPS in the single dose of 15 mg kg-1. The mice were euthanized 24 h after the LPS administration. Histological alterations, myeloperoxidase activity, and nitrite levels were analyzed in the gut of mice and the inflammatory cytokines were analyzed in the gut and in the blood. The results demonstrate that the mice challenged with LPS presented the villi shortened and damaged, which were significantly protected by B. coagulans and B. amyloliquefaciens. Furthermore, all Bacillus tested were effective in preventing against the increase of myeloperoxidase activity, while B. amyloliquefaciens and B. subtilis prevented the increase of nitrite and IL-1β levels in the gut of mice induced with LPS was decreased only B. subtilis. LPS also elevated the IL-1 β, IL-6, and IL-10 levels in the blood, and these alterations were significantly suppressed by Bacillus, especially by B. subtilis., Conclusions: The study suggests that the Bacillus investigated in this study might be effective therapeutic agents for preventing intestinal inflammation, because they decrease the inflammatory process an protect against tissue damage., (The Author(s) 2022. Published by Oxford University Press on behalf of Applied Microbiology International.)
- Published
- 2023
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141. Review of Bacterial Nanocellulose as Suitable Substrate for Conformable and Flexible Organic Light-Emitting Diodes.
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Faraco TA, Fontes ML, Paschoalin RT, Claro AM, Gonçalves IS, Cavicchioli M, Farias RL, Cremona M, Ribeiro SJL, Barud HDS, and Legnani C
- Abstract
As the development of nanotechnology progresses, organic electronics have gained momentum in recent years, and the production and rapid development of electronic devices based on organic semiconductors, such as organic light-emitting diodes (OLEDs), organic photovoltaic cells (OPVs), and organic field effect transistors (OFETs), among others, have excelled. Their uses extend to the fabrication of intelligent screens for televisions and portable devices, due to their flexibility and versatility. Lately, great efforts have been reported in the literature to use them in the biomedical field, such as in photodynamic therapy. In tandem, there has been considerable interest in the design of advanced materials originating from natural sources. Bacterial nanocellulose (BNC) is a natural polymer synthesized by many microorganisms, notably by non-pathogenic strains of Komagataeibacter ( K. xylinus , K. hansenii , and K. rhaeticus ). BNC shows distinct physical and mechanical properties, including its insolubility, rapid biodegradability, tensile strength, elasticity, durability, and nontoxic and nonallergenic features, which make BNC ideal for many areas, including active and intelligent food packaging, sensors, water remediation, drug delivery, wound healing, and as conformable/flexible substrates for application in organic electronics. Here, we review BNC production methods, properties, and applications, focusing on electronic devices, especially OLEDs and flexible OLEDs (FOLEDs). Furthermore, we discuss the future progress of BNC-based flexible substrate nanocomposites.
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- 2023
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142. Temporomandibular joint arthritis increases canonical Wnt pathway expression in the articular cartilage and trigeminal ganglion in rats.
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de Sousa LM, de Figueiredo Costa AC, Pereira AF, da Silva Martins C, de Oliveira Filho OV, Goes P, Vale ML, and Gondim DV
- Abstract
The canonical Wnt pathway participates in inflammatory diseases and it is involved in neuropathic pain. This study evaluated the immunoexpression of the canonical Wnt signaling pathway in the articular cartilage of the temporomandibular joint (TMJ) and along the nociceptive trigeminal pathway in arthritic rats. For this, male Wistar rats were divided into Control (C) and Arthritic (RA) groups. Arthritis induction was performed through subcutaneous injection of methylated bovine serum albumin (mBSA) and complete Freund Adjuvant (CFA)/ Incomplete Freund Adjuvant (IFA) on the first 14 days (once a week), followed by 3 weekly intra-articular injections of mBSA (10 μl/joint; left TMJ). The following parameters were evaluated: nociceptive threshold, inflammatory infiltrate, type I and III collagen birefringence, immunohistochemistry for IL-1β, TNF-α, IL-6, Wnt10b, β-catenin, cyclin-D1 in articular cartilage, c-Myc in synovial membrane, and immunofluorescence analysis for c-Fos, Wnt-10b and β-catenin in the trigeminal ganglion and the trigeminal subnucleus caudalis. The RA group showed intense articular cartilage damage with proliferation of type III collagen, increased immunoexpression of proinflammatory cytokines and Wnt-10b, β-catenin and cyclin-D1 in the articular cartilage and c-Myc in the synovial membrane. In the RA group, a reduction in the nociceptive threshold was observed, followed by a significant increase in the expression of Wnt-10b in neurons and β-catenin in satellite cells of the trigeminal ganglion. c-Fos immunoexpression was observed in neurons, peripherally and centrally, in arthritic rats. Our data demonstrated that TMJ arthritis in rats causes articular cartilage damage and nociceptive behavior, with increased immunoexpression of canonical Wnt pathway in the articular cartilage and trigeminal ganglion., Competing Interests: The authors declare no potential conflicts of interest with respect to the authorship and/or publication of this article., (© 2022 The Author(s).)
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- 2023
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143. Genomic Diversity of the Rarely Observed Genotype of the Mycobacterium tuberculosis Central Asian (CAS) Lineage 3 from North Brazil.
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Conceição EC, da Conceição ML, Marcon DJ, Loubser J, Andrade GL, Silva SPD, Cruz ACR, Sharma A, Suffys P, and Lima KVB
- Abstract
Mycobacterium tuberculosis (Mtb) Central Asian Strain (CAS) Lineage 3 (L3) genotype is predominantly found in East-Africa, Central-Asia, Western-Asia, and South-Asia; however, a new spoligotyping CAS/SIT2545 was found in northern regions of Brazil. We aimed to characterize and describe the genetic diversity and perform a phylogenetic assessment of this novel genotype. We performed 24-MIRU-VNTR loci and Whole-genome sequencing (WGS) of six Brazilian isolates previously spoligotyped. The libraries were prepared using a Nextera-XT kit and sequenced in a NextSeq 550 Illumina instrument. We performed lineage assignment and genomic characterization. From publicly available genomes of Mtb L3 and other lineages, we created a robust dataset to run the MTBSeq pipeline and perform a phylogenetic analysis. MIRU-VNTR and WGS confirmed CAS/SIT2545 belongs to L3. Out of 1691 genomes, 1350 (79.83%) passed in quality control (genomic coverage > 95%). Strain 431 differed in 52 single nucleotide variants (SNV), confirming it does not belong to the same transmission chain. The eight genomes from a global dataset clustered closer to Brazilian strains differed in >52 SNVs. We hypothesized L3 and L1 were introduced in Brazilian Northern in the same historical event; however, there is a need for additional studies exploring the genetic diversity of Mtb Brazilian Northern.
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- 2023
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144. Intervention and mediation effects of a community-based singing group on older adults' perceived physical and mental health: the Sing4Health randomized controlled trial.
- Author
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Galinha IC, Fernandes HM, Lima ML, and Palmeira AL
- Subjects
- Aged, Humans, Anxiety, Anxiety Disorders, Cognition, Middle Aged, Aged, 80 and over, Mental Health, Singing
- Abstract
ObjectiveTo examine short- and long-term effects of a group singing program on older adults' perceived physical and mental health levels, and also investigate subjective well-being (life satisfaction, positive/negative affect and hedonic balance), body balance and serum biomarkers (C-reactive protein and erythrocyte sedimentation rate) as putative mediating mechanisms, controlling for the cognitive status of the participants. Design : The randomized controlled trial included 149 participants (60 to 95 years), allocated to an immediate intervention group (IG) or a wait-list active control group (WLG). The intervention comprised 34 sessions of group singing during 4-months. Main outcome measures : Self-report measures of physical health, anxiety, stress, and depression. Blinded assessments were conducted at baseline, post-intervention (4 months) and follow-up (6 months). Results : Participants in the IG reported a lower decline in perceived physical health after the intervention, as compared to the WLG. These benefits were maintained at follow-up. Singing-related changes in physical and mental health outcomes were mediated via an increase in positive affect. Moderation results showed that participants with very low cognitive functioning reported more anxiety and depression symptoms after the intervention. Conclusions : These findings provide further understanding on the psychological and physical mechanisms and effects of group singing in older adults.
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- 2023
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145. New insights into cadmium tolerance and accumulation in tomato: Dissecting root and shoot responses using cross-genotype grafting.
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Marques DN, Nogueira ML, Gaziola SA, Batagin-Piotto KD, Freitas NC, Alcantara BK, Paiva LV, Mason C, Piotto FA, and Azevedo RA
- Subjects
- Plant Roots metabolism, Plant Leaves, Genotype, Cadmium toxicity, Cadmium metabolism, Solanum lycopersicum genetics, Solanum lycopersicum metabolism
- Abstract
Cadmium (Cd) is one of the most threatening soil and water contaminants in agricultural settings. In previous studies, we observed that Cd affects the metabolism and physiology of tomato (Solanum lycopersicum) plants even after short-term exposure. The objective of this research was to use cross-genotype grafting to distinguish between root- and shoot-mediated responses of tomato genotypes with contrasting Cd tolerance at the early stages of Cd exposure. This study provides the first report of organ-specific contributions in two tomato genotypes with contrasting Cd tolerance: Solanum lycopersicum cv. Calabash Rouge and Solanum lycopersicum cv. Pusa Ruby (which have been classified and further characterized as sensitive (S) and tolerant (T) to Cd, respectively). Scion S was grafted onto rootstock S (S/S) and rootstock T (S/T), and scion T was grafted onto rootstock T (T/T) and rootstock S (T/S). A 35 μM cadmium chloride (CdCl
2 ) treatment was used for stress induction in a hydroponic system. Both shoot and root contributions to Cd responses were observed, and they varied in a genotype- and/or organ-dependent manner for nutrient concentrations, oxidative stress parameters, antioxidant enzymes, and transporters gene expression. The findings overall provide evidence for the dominant role of the tolerant rootstock system in conferring reduced Cd uptake and accumulation. The lowest leaf Cd concentrations were observed in T/T (215.11 μg g-1 DW) and S/T (235.61 μg g-1 DW). Cadmium-induced decreases in leaf dry weight were observed only in T/S (-8.20%) and S/S (-13.89%), which also were the only graft combinations that showed decreases in chlorophyll content (-3.93% in T/S and -4.05% in S/S). Furthermore, the results show that reciprocal grafting is a fruitful approach for gaining insights into the organ-specific modulation of Cd tolerance and accumulation during the early stages of Cd exposure., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2022 Elsevier Inc. All rights reserved.)- Published
- 2023
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146. Effect of Diets Varying in Iron and Saturated Fat on the Gut Microbiota and Intestinal Inflammation: A Crossover Feeding Study among Older Females with Obesity.
- Author
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Wolf PG, Penalver Bernabe B, Oliveira ML, Hamm A, McLeod A, Olender S, Castellanos K, Loman BR, Gaskins HR, Fitzgibbon M, and Tussing-Humphreys L
- Subjects
- Female, Humans, Middle Aged, Diet, High-Fat adverse effects, Fatty Acids, Inflammation etiology, Iron, Obesity complications, Obesity epidemiology, Obesity microbiology, RNA, Ribosomal, 16S genetics, Diet, Gastrointestinal Microbiome, Intestines microbiology, Intestines physiology
- Abstract
Obesity is considered an independent risk factor for colorectal cancer (CRC). Altered nutrient metabolism, particularly changes to digestion and intestinal absorption, may play an important role in the development of CRC. Iron can promote the formation of tissue-damaging and immune-modulating reactive oxygen species. We conducted a crossover, controlled feeding study to examine the effect of three, 3-week diets varying in iron and saturated fat content on the colonic milieu and systemic markers among older females with obesity. Anthropometrics, fasting venous blood and stool were collected before and after each diet. There was a minimum 3-week washout period between diets. Eighteen participants consumed the three diets (72% Black; mean age 60.4 years; mean body mass index 35.7 kg/m
2 ). Results showed no effect of the diets on intestinal inflammation (fecal calprotectin) or circulating iron, inflammation, and metabolic markers. Pairwise comparisons revealed less community diversity between samples (beta diversity, calculated from 16S rRNA amplicon sequences) among participants when consuming a diet low in iron and high in saturated fat vs. when consuming a diet high in iron and saturated fat. More studies are needed to investigate if dietary iron represents a salient target for CRC prevention among individuals with obesity.- Published
- 2023
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147. Deferoxamine Interference in Fibro-inflammation: Additional Action in Control of Obese Adipose Tissue Dysfunction.
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Gotardo EMF, de Morais TR, Ferreira APT, Caria CREP, Ribeiro ML, and Gambero A
- Subjects
- Humans, Animals, Mice, Adipose Tissue, Obesity metabolism, Inflammation metabolism, Liver metabolism, Mice, Inbred C57BL, Deferoxamine pharmacology, Deferoxamine therapeutic use, Deferoxamine metabolism, Insulin Resistance
- Abstract
Introduction: Several studies demonstrated that deferoxamine, an iron chelator, can improve inflammatory alterations in adipose tissue induced by obesity. Obesity alterations in adipose tissue are also associated with tissue remodeling, and deferoxamine has anti-fibrosis action previously described in sites like the skin and liver., Methods: In this work, we analyzed deferoxamine effects on adipose tissue fibro-inflammation during obesity induced by diet in mice. in vitro approaches with fibroblasts and macrophages were also carried out to elucidate deferoxamine activity., Results: Our results demonstrated that in addition to exerting anti-inflammatory effects, reducing the cytokine production in adipose tissue of obese mice and by human monocyte differentiated in macrophage in vitro, deferoxamine can alter metalloproteinases expression and extracellular matrix production in vivo and in vitro ., Conclusion: Deferoxamine could be an alternative to control fibro-inflammation in obese adipose tissue, contributing to the metabolic improvements previously described., (Copyright© Bentham Science Publishers; For any queries, please email at epub@benthamscience.net.)
- Published
- 2023
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148. Phosphorus in alkaline soils of the semiarid region, Brazil: inorganic fractions, capacity factor, and availability.
- Author
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Paiva MRFC, Oliveira FHT, Alves WPLBDC, Farias ML, Cunha MLD, Tavares HAM, Morais Neta Góis HM, Santos MBDSB, Arruda JA, Grangeiro LC, Bezerra MGDS, and Sá FVDS
- Subjects
- Brazil, Biodegradation, Environmental, Phosphates, Adsorption, Phosphorus chemistry, Soil chemistry
- Abstract
The study was designed to quantify the contents of Pi fractions and correlate them with the P capacity factor of soils in the Brazilian semiarid region. We also evaluated the effect of soil P doses contact time and P availability for maize plants in alkaline soils of the Brazilian semiarid region. Soil samples were collected between the Piranhas-Açu (RN) and Jaguaribe (CE) rivers valleys. The maximum phosphate sorption capacity was highly correlated with the values of remaining P, indicating that it can be used as a measure to estimate the P capacity factor of these soils. Maximum P sorption capacity correlated with Fe
2 O3 and Ca2+ contents and pH values. These results demonstrate that P sorption is explained by P adsorption on the surface of iron oxides and by its precipitation with Ca2+ in alkaline soils. The contact time increases promote plant P contents decreased substantially in the first 30 to 60 days after fertilization and decreased until 120 days of incubation but then tended to stabilize at the longest soil P contact times.- Published
- 2023
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149. Virome analysis in lakes of the South Shetland Islands, Antarctica - 2020.
- Author
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Prado T, Brandão ML, Fumian TM, Freitas L, Chame M, Leomil L, Magalhães MGP, Degrave WMS, Leite JPG, and Miagostovich MP
- Subjects
- Humans, Lakes, Antarctic Regions, Virome, Prospective Studies, Islands, Viruses genetics, RNA Viruses, Microbiota
- Abstract
Polar freshwater ecosystems are characterized by a distinct microbiota. However, little is known about viral diversity and abundance, especially regarding the ecology of RNA viruses. We used shotgun metagenomic analysis on samples from Antarctic ecosystems, and report here the characterization of the virome fraction, from different lakes located in the South Shetland Islands (Penguin, Ardley, Deception and King George Island) in the Peninsula Antarctica, in the summer season 2020. DNA viruses (99.4 %) prevailed over RNA viruses (0.6 %) in the lake samples. Six viral orders were identified in the metagenomic libraries: Caudovirales (dsDNA), which was prevalent in most lakes; Picornavirales (ssRNA+); Sobelivirales (ssRNA+); Tolivirales (ssRNA+); Petitvirales (ssDNA) and Baphyvirales (ssDNA), including eight viral families (Herelleviridae, Siphoviridae, Myoviridae, Microviridae, Marnaviridae, Bacilladnaviridae, Barnaviridae and Tombusviridae) and several other, mainly non-classified ssRNA
(+) viruses in the lakes of Ardley Island. Bacteriophages (dsDNA) (Herelleviridae family) infecting the phylum Firmicutes and Siphoviridae were predominant in most lakes evaluated. Functional analysis demonstrated a prevalence of unknown proteins (68 %) in the virome. Our prospective study provides virome analysis data from different lakes in the South Shetland Islands, Antarctica, opening exploratory lines for future research related to the biodiversity and viral ecology in this extreme ecosystem., Competing Interests: Declaration of competing interest The authors have no relevant financial or non-financial interests to disclose., (Copyright © 2022. Published by Elsevier B.V.)- Published
- 2022
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150. The Discourse Profile in Corticobasal Syndrome: A Comprehensive Clinical and Biomarker Approach.
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de Almeida IJ, Silagi ML, Carthery-Goulart MT, Parmera JB, Cecchini MA, Coutinho AM, Dozzi Brucki SM, Nitrini R, and Schochat E
- Abstract
The aim of this study was to characterize the oral discourse of CBS patients and to verify whether measures obtained during a semi-spontaneous speech production could differentiate CBS patients from controls. A second goal was to compare the performance of patients with CBS probably due to Alzheimer's disease (CBS-AD) pathology and CBS not related to AD (CBS-non-AD) in the same measures, based on the brain metabolic status (FDG-PET) and in the presence of amyloid deposition (amyloid-PET). Results showed that CBS patients were significantly different from controls in speech rate, lexical level, informativeness, and syntactic complexity. Discursive measures did not differentiate CBS-AD from CBS-non-AD. However, CBS-AD displayed more lexical-semantic impairments than controls, a profile that is frequently reported in patients with clinical AD and the logopenic variant of primary progressive aphasia (lvPPA). CBS-non-AD presented mainly with impairments related to motor speech disorders and syntactic complexity, as seen in the non-fluent variant of PPA.
- Published
- 2022
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