84 results on '"Gomes SM"'
Search Results
2. Lack of gene-language correlation due to reciprocal female but directional male admixture in Austronesians and non-Austronesians of East Timor
- Author
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Gomes, SM, Oven, Mannis, Souto, L, Morreira, H, Brauer, Silke, Bodner, M, Zimmermann, B, Huber, G, Strobl, C, Rock, AW, Corte-Real, F, Parson, W, Kayser, Manfred, Gomes, SM, Oven, Mannis, Souto, L, Morreira, H, Brauer, Silke, Bodner, M, Zimmermann, B, Huber, G, Strobl, C, Rock, AW, Corte-Real, F, Parson, W, and Kayser, Manfred
- Published
- 2017
3. Monogenic polyarteritis nodosa caused by ADA2 Deficiency: the GOSH experience
- Author
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Nanthapisal, S, primary, Murphy, C, additional, Omoyinmi, E, additional, Standing, A, additional, Hong, Y, additional, Gomes, SM, additional, Klein, N, additional, Eleftheriou, D, additional, and Brogan, PA, additional
- Published
- 2015
- Full Text
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4. 'A Good Death' - Palliative Surgery in Trisomy 18
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Fernandes, CA, Gomes, SM, Neves, CI, Ramos, H, Fernandes, E, Santos, M, Nunes, MA, Magalhães, M, Nascimento, O, and Valido, AM
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Cuidados Paliativos ,Trissomia ,Cirurgia Cardíaca - Abstract
A trissomia 18 caracteriza-se por múltiplas anomalias, incluindo doença cardíaca em 60 a 90% dos casos e elevada mortalidade. O mau prognóstico global, conduz habitualmente a uma politica de “cuidados mínimos” mas, paliar, é também nestas situações, um imperativo ético. Descreve-se o caso de uma recém-nascida sem diagnóstico pré natal, mas com confirmação por cariotipo, com cardiopatia, que condicionou insuficiência cardíaca congestiva e angústia respiratória crescente, inviabilizando alta hospitalar, como era desejo da família. Após consenso entre os pais e o corpo clínico responsável, foi decidida intervenção cirúrgica cardíaca paliativa, que possibilitou melhoria clínica e alta para o domicílio. Os autores defendem que a cirurgia cardíaca pode ser uma atitude a considerar em casos de trissomia 18, pois pode aliviar o sofrimento.
- Published
- 2009
5. 'Uma Boa Morte' – Cirurgia Paliativa na Trissomia 18
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Fernandes, CA, Gomes, SM, Neves, CI, Ramos, H, Fernandes, E, Santos, M, Nunes, MA, Magalhães, M, Nascimento, O, and Valido, AM
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Cuidados Paliativos ,Trissomia ,Cirurgia Cardíaca - Abstract
Submitted by Ana Quininha (ana.quininha@chlc.min-saude.pt) on 2012-10-29T15:19:23Z No. of bitstreams: 1 APP 2009 120.pdf: 48379 bytes, checksum: d00e8ac728d53c8f704ecbe475fc2d15 (MD5) Made available in DSpace on 2012-10-29T15:19:23Z (GMT). No. of bitstreams: 1 APP 2009 120.pdf: 48379 bytes, checksum: d00e8ac728d53c8f704ecbe475fc2d15 (MD5) Previous issue date: 2009
- Published
- 2009
6. High glucose induces DNA methyltransferase 1 dependent epigenetic reprogramming of the endothelial exosome proteome in type 2 diabetes.
- Author
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Vasishta S, Ammankallu S, Poojary G, Gomes SM, Ganesh K, Umakanth S, Adiga P, Upadhya D, Prasad TSK, and Joshi MB
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- Animals, Humans, Mice, Male, Diet, High-Fat adverse effects, Diabetes Mellitus, Experimental metabolism, Diabetes Mellitus, Experimental genetics, Diabetes Mellitus, Experimental pathology, Exosomes metabolism, Exosomes genetics, Diabetes Mellitus, Type 2 metabolism, Diabetes Mellitus, Type 2 genetics, Diabetes Mellitus, Type 2 pathology, Human Umbilical Vein Endothelial Cells metabolism, DNA (Cytosine-5-)-Methyltransferase 1 metabolism, DNA (Cytosine-5-)-Methyltransferase 1 genetics, Proteome metabolism, Epigenesis, Genetic, Mice, Inbred C57BL, Glucose metabolism, Glucose pharmacology
- Abstract
In response to hyperglycemia, endothelial cells (ECs) release exosomes with altered protein content and contribute to paracrine signalling, subsequently leading to vascular dysfunction in type 2 diabetes (T2D). High glucose reprograms DNA methylation patterns in various cell/tissue types, including ECs, resulting in pathologically relevant changes in cellular and extracellular proteome. However, DNA methylation-based proteome reprogramming in endothelial exosomes and associated pathological implications in T2D are not known. Hence, in the present study, we used Human umbilical vein endothelial cells (HUVECs), High Fat Diet (HFD) induced diabetic mice (C57BL/6) and clinical models to understand epigenetic basis of exosome proteome regulation in T2D pathogenesis . Exosomes were isolated by size exclusion chromatography and subjected to tandem mass tag (TMT) labelled quantitative proteomics and bioinformatics analysis. Immunoblotting was performed to validate exosome protein signature in clinically characterized individuals with T2D. We observed ECs cultured in high glucose and aortic ECs from HFD mouse expressed elevated DNA methyltransferase1 (DNMT1) levels. Quantitative proteomics of exosomes isolated from ECs treated with high glucose and overexpressing DNMT1 showed significant alterations in both protein levels and post translational modifications which were aligned to T2D associated vascular functions. Based on ontology and gene-function-disease interaction analysis, differentially expressed exosome proteins such as Thrombospondin1, Pentraxin3 and Cystatin C related to vascular complications were significantly increased in HUVECs treated with high glucose and HFD animals and T2D individuals with higher levels of glycated hemoglobin. These proteins were reduced upon treatment with 5-Aza-2'-deoxycytidine. Our study shows epigenetic regulation of exosome proteome in T2D associated vascular complications., 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 © 2024 The Authors. Published by Elsevier Ltd.. All rights reserved.)
- Published
- 2024
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7. Evaluation of the potential of achachairu peel (Garcinia humilis) for the fortification of cereal-based foods.
- Author
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Gomes SM, Rodrigues IC, Silva FA, and Santos L
- Abstract
Background: Achachairu is an exotic fruit that is being studied for its bioactive compound composition. However, there is scarce information on the properties of its by-products and their incorporation into food. In this study, achachairu peels were used to obtain phenolic-rich and sustainable ingredients. Furthermore, their potential for use in the fortification of food, particularly cereal-based products, was evaluated. Different ratios of ethanol:water were used to extract the phenolic compounds from achachairu (100:0, 90:10 and 70:30). The optimal extract was characterised regarding its total phenolic content (TPC) and antioxidant, antimicrobial and anti-enzymatic properties. Finally, achachairu peel powder and extract were incorporated into bread and their influence on the texture, antioxidant properties and shelf life of the product was evaluated., Results: High-performance liquid chromatographic analysis showed that the 90:10 extract contained a higher phenolic composition than the other samples. The achachairu extract presented a TPC of 88.7 mg
GAE g-1 , good antioxidant capacity towards DPPH and ABTS radicals and the capacity to inhibit the activity of α-amylase by almost 80%. The addition of achachairu peel powder and extract to bread increased its hardness, chewiness and gumminess, not affecting the remaining texture parameters. An increase in the TPC, antioxidant properties and shelf life of the product was also observed., Conclusion: This study proves the potential for achachairu by-products incorporated into cereal-based products to improve their biological properties while extending the food shelf life. © 2024 Society of Chemical Industry., (© 2024 Society of Chemical Industry.)- Published
- 2024
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8. Beyond gender: Exploring sexual orientation, race and motivations among Brazilian flexitarians.
- Author
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Teixeira CD, Gomes SM, and Medeiros Jacob MC
- Subjects
- Humans, Female, Male, Brazil, Adult, Young Adult, Middle Aged, Sex Factors, Feeding Behavior psychology, Adolescent, Diet psychology, Motivation, Sexual and Gender Minorities psychology, Sexual Behavior psychology, Meat
- Abstract
In this study, we analyzed 989 Brazilian individuals identified as flexitarians to explore the relationship between gender, sexual orientation, and meat consumption reduction behavior, while evaluating the impact of motivations driving individuals towards this dietary model. To achieve this goal, we tested the following hypotheses: women consume less meat than men; LGBT women consume less meat than heterosexual women; LGBT men consume less meat than heterosexual men; and women are more motivated by the environmental impact of meat. Our findings revealed that although gender significantly influences motivations, with women showing a greater influence from animal ethics, flexitarians of both genders exhibit similar meat consumption patterns. Neither sexual orientation nor gender influence meat reduction patterns among flexitarians. However, the race/ethnicity of white individuals is a predominant factor among those who reduce meat consumption the most. Consequently, we conclude that (i) the social theories applied to explain gender differences in meat exclusion behavior may not be the most suitable for explaining meat reduction behavior, and (ii) intersectional approaches are needed to investigate flexitarianism., Competing Interests: Declaration of competing interest The authors declare that they have no conflicts of interest regarding the submission of this manuscript to the journal Appetite. The research reported in this manuscript was conducted independently and without any financial or personal relationships that could compromise the integrity or objectivity of the work. The authors have no financial or personal relationships with any organizations or individuals that could influence or be perceived to influence the work reported in this manuscript., (Copyright © 2024 Elsevier Ltd. All rights reserved.)
- Published
- 2024
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9. Depressive symptoms and associated factors among travestis and transsexuals: a cross-sectional study.
- Author
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Silva GWDS, Meira KC, Dantas ESO, Gomes SM, Pedrosa IMB, and Miranda FAN
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- Humans, Cross-Sectional Studies, Female, Adult, Male, Prevalence, Surveys and Questionnaires, Middle Aged, Brazil epidemiology, Transsexualism psychology, Transsexualism epidemiology, Depression epidemiology, Depression psychology, Depression etiology, Transgender Persons psychology, Transgender Persons statistics & numerical data
- Abstract
Objectives: to estimate the prevalence of depressive levels and their associated factors among transvestite and transsexual individuals., Methods: this cross-sectional study involved 58 participants assisted by non-governmental organizations. The Beck Depression Inventory was utilized to assess levels of depression, complemented by a sociodemographic questionnaire and a questionnaire on experiences of violence. Data were analyzed using descriptive statistics and Poisson regression with robust variance., Results: a prevalence of 27.6% (95% CI = 11.50-39.10) for moderate to severe levels of depression was observed. This prevalence was associated with being unmarried (PR = 1.19; 95% CI = 1.10-1.28) and experiencing violence in healthcare services (PR = 2.30; 95% CI = 1.10-4.81)., Conclusions: the absence of a partner and experiences of violence in healthcare settings negatively impacted mental health, leading to an increased prevalence of depressive symptoms among transvestite and transsexual individuals. Advocating for transgender rights and providing ongoing education in health care for professionals are critical strategies in promoting the mental health of this population.
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- 2024
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10. Exploring the Nexus between Food Systems and the Global Syndemic among Children under Five Years of Age through the Complex Systems Approach.
- Author
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de Carvalho AM, Garcia LMT, Lourenço BH, Verly Junior E, Carioca AAF, Jacob MCM, Gomes SM, and Sarti FM
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- Humans, Child, Preschool, Infant, Global Health, Food Supply, Climate Change, Infant, Newborn, Syndemic
- Abstract
The intricate relationship between food systems and health outcomes, known as the food-nutrition-health nexus, intersects with environmental concerns. However, there's still a literature gap in evaluating food systems alongside the global syndemic using the complex systems theory, especially concerning vulnerable populations like children. This research aimed to design a system dynamics model to advance a theoretical understanding of the connections between food systems and the global syndemic, particularly focusing on their impacts on children under five years of age. The framework was developed through a literature review and authors' insights into the relationships between the food, health, and environmental components of the global syndemic among children. The conceptual model presented 17 factors, with 26 connections and 6 feedback loops, categorized into the following 5 groups: environmental, economic, school-related, family-related, and child-related. It delineated and elucidated mechanisms among the components of the global syndemic encompassing being overweight, suffering from undernutrition, and climate change. The findings unveiled potential interactions within food systems and health outcomes. Furthermore, the model integrated elements of the socio-ecological model by incorporating an external layer representing the environment and its natural resources. Consequently, the development of public policies and interventions should encompass environmental considerations to effectively tackle the complex challenges posed by the global syndemic.
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- 2024
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11. Influence of Sucrose and Activated Charcoal on Phytochemistry and Vegetative Growth in Zephyranthes irwiniana (Ravenna) Nic. García (Amaryllidaceae).
- Author
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Dewes Neto B, Gomes-Copeland KKP, Silveira D, Gomes SM, Craesmeyer JMM, de Castro Nizio DA, and Fagg CW
- Abstract
Zephyranthes irwiniana (Ravenna) Nic. García is an endemic, red list threatened species from the Brazilian savanna (Cerrado) with pharmacological potential to treat the symptoms of Alzheimer's Disease (AD). This work analyzed the vegetative growth and phytochemistry of its potential compounds, in response to variations in sucrose concentration and activated carbon (AC). Seeds were germinated in vitro and in the greenhouse. The in vitro bulbs were separated in six treatments with different sucrose concentrations (30, 45 and 60 gL
-1 ) and/or AC (1 gL-1 ). Biomass increases in individuals grown in the greenhouse were higher than those cultivated in vitro . Sucrose concentration significantly increased biomass and root number. AC had a positive influence on leaf and root size, and a negative influence on root number. GC-MS analyses indicated great variation in the abundance of α-terpenyl-acetate, ethyl linoleate, clionasterol and lycorine between treatments, with maximum concentrations of 53.06%, 38.68, 14.34% and 2.57%, respectively. Histolocalization tests indicated the presence of alkaloids in the leaf chlorenchyma and bulb cataphylls. Finally, the present study provided new evidence that the constitution of the culture medium directly influences the vegetative growth and phytochemistry of this species, providing a good medium condition for propagating the species under threat.- Published
- 2024
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12. Targeting superficial cancers with gold nanoparticles: a review of current research.
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Gomes SM, Gaspar MM, Coelho JM, and Reis CP
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- Humans, Animals, Photosensitizing Agents administration & dosage, Photosensitizing Agents therapeutic use, Photosensitizing Agents chemistry, Neoplasms drug therapy, Neoplasms therapy, Gold chemistry, Metal Nanoparticles chemistry, Photothermal Therapy methods
- Abstract
Superficial cancers typically refer to cancers confined to the surface layers of tissue. Low-targeting therapies or side effects prompt exploration of novel therapeutic approaches. Gold nanoparticles (AuNPs), due to their unique optical properties, serve as effective photosensitizers, enabling tumor ablation through photothermal therapy (PTT). PTT induced by AuNPs can be achieved through light sources externally applied to the skin. Near-infrared radiation is the main light candidate due to its deep tissue penetration capability. This review explores recent advancements in AuNP-based PTT for superficial cancers, specifically breast, head and neck, thyroid, bladder and prostate cancers. Additionally, challenges and future directions in utilizing AuNPs for cancer treatment are discussed, emphasizing the importance of balancing efficacy with safety in clinical applications.
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- 2024
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13. Flexitarians in Brazil: Who are they, what do they eat, and why?
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Teixeira CD, Marchioni DM, Motta VWL, Chaves VM, Gomes SM, and Jacob MCM
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- Animals, Cattle, Humans, Female, Brazil, Vegetables, Eggs, Diet, Meat
- Abstract
In this study, we conducted the first scientific investigation focusing on Brazilian flexitarians, aiming to characterize their socio-economic and demographic profiles, motivations for adopting flexitarianism, the frequency of animal-based meat consumption, and the primary meat substitutes they consume. To accomplish this, we distributed an online questionnaire with the assistance of university students and researchers from various regions of the country. Data were collected from 1029 individuals in Brazil who self-identified as flexitarians. Our findings reveal that the flexitarian dietary model is primarily adopted by women, constituting 76% of the sample (n = 786). Their motivations include concerns about the environmental impact of meat consumption (n = 361, 35%), personal health (n = 344, 33%), and animal welfare (n = 219, 21%). Flexitarians exhibit varying consumption patterns, which can be categorized into three groups: light flexitarians (consuming meat 36 times a week), medium flexitarians (consuming meat 7 times a week), and heavy flexitarians (consuming meat 4 times a week). The flexitarian dietary pattern is characterized by reduced beef consumption (less than 2 times per week) and higher consumption of chicken (3 times per week). It is complemented by plant-based protein sources and eggs as the primary meat substitutes. The recognition of legumes as the principal meat substitutes opens avenues for an expanded discussion on sustainable food systems and alternative meat products in Brazil. This provides opportunities to enhance the availability and accessibility of these foods and to develop nutritional interventions that prioritize plant-based proteins., Competing Interests: Declaration of competing interest The authors declare that they have no conflicts of interest regarding the submission of this manuscript to the journal Appetite. The research reported in this manuscript was conducted independently and without any financial or personal relationships that could compromise the integrity or objectivity of the work. The authors have no financial or personal relationships with any organizations or individuals that could influence or be perceived to influence the work reported in this manuscript., (Copyright © 2023 Elsevier Ltd. All rights reserved.)
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- 2024
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14. Evaluation of a Community COVID-19 Vaccine Ambassador Train-the-Trainer Program.
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Corley AMS, Gomes SM, Martin KJ, Watkins S, Lindsey K, Frenck RW Jr, Mitchell MJ, Rule ARL, and Crosby LE
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- Humans, Communication, Knowledge, Needs Assessment, Vaccination, COVID-19 Vaccines, COVID-19 prevention & control
- Abstract
Racially minoritized groups are more likely to experience COVID-19 vaccine hesitancy and have lower vaccination rates. As part of a multi-phase community-engaged project, we developed a train-the-trainer program in response to a needs assessment. "Community vaccine ambassadors" were trained to address COVID-19 vaccine hesitancy. We evaluated the program's feasibility, acceptability, and impact on participant confidence for COVID-19 vaccination conversations. Of the 33 ambassadors trained, 78.8% completed the initial evaluation; nearly all reported gaining knowledge (96.8%) and reported a high confidence with discussing COVID-19 vaccines (93.5%). At two-week follow-up, all respondents reported having a COVID-19 vaccination conversation with someone in their social network, reaching an estimated 134 people. A program that trains community vaccine ambassadors to deliver accurate information about COVID-19 vaccines may be an effective strategy for addressing vaccine hesitancy in racially minoritized communities., (© 2023. The Author(s).)
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- 2023
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15. Elevating Cereal-Based Nutrition: Moringa oleifera Supplemented Bread and Biscuits.
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Ferreira T, Gomes SM, and Santos L
- Abstract
Enhancing the nutritional value of commonly consumed, cost-effective staple foods, such as bread and biscuits, by fortifying them with Moringa oleifera leaf powder (MOLP) and its phenolic-rich extract holds substantial potential for addressing malnutrition. This study evaluated the phenolic extract from MOLP obtained through Soxhlet extraction, focusing on its antioxidant, antibacterial, and antidiabetic properties. The resulting extract exhibited a total phenolic content (TPC) of 138.2 mg of gallic acid equivalents/g. The ABTS and DPPH assays presented IC
50 values of 115.2 mg/L and 544.0 mg/L, respectively. Furthermore, the extract displayed notable α-amylase inhibition and no cytotoxicity towards human fibroblasts. The primary phenolic compounds identified were catechin, epicatechin, and caffeic acid. Subsequently, MOLP and its extract were incorporated into bread and biscuits, replacing 5% of wheat flour, resulting in fortified functional foods. The fortified products exhibited improved TPC and antioxidant activity compared to the non-fortified foods. Furthermore, they displayed the ability to inhibit microbial growth, leading to an extended shelf life. Sensory analysis indicated that the products incorporated with the extract were preferred over those with MOLP. These results have demonstrated the viability of using MOLP and its phenolic-rich extract as an environmentally sustainable strategy for enhancing the quality of cereal-based products.- Published
- 2023
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16. Innovative Approaches for Food: Using Natural Phenolic-Rich Extracts to Produce Value-Added Fresh Pasta.
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Gomes SM, Albuquerque D, and Santos L
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- Food, Phenols analysis, Cooking, Antioxidants chemistry, Plant Extracts pharmacology, Plant Extracts chemistry
- Abstract
Cereal-based products, which are rich in carbohydrates, are widely consumed worldwide; however, this type of food lacks other nutrients. Phenolic compounds from natural sources, such as Moringa oleifera , can be incorporated into these products to increase their nutritional and biological value. In this study, a phenolic-rich extract was obtained from M. oleifera leaf powder using a Soxhlet extractor. The extract obtained presented a total phenolic content of 79.0 mg of gallic acid equivalents/g and the ABTS and DPPH assays showed that the extract can act as an anti-oxidant agent, with IC
50 values of 205.2 mg/L and 636.0 mg/L, respectively. Afterwards, fresh pasta was produced and the extract was incorporated into the pasta to improve its biological properties and extend its shelf-life. The results demonstrated that the addition of M. oleifera to the fresh pasta increased its anti-oxidant capacity and did not interfere with the cooking properties of the product. Moreover, the fortified pasta presented an increased shelf-life, since the extract conferred protection against microbial contamination for longer periods of time. Therefore, these findings showed that the incorporation of phenolic-rich extracts from natural sources (such as M. oleifera ) is a feasible sustainable biotechnological approach to produce value-added cereal-based products.- Published
- 2023
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17. Author Correction: Biodiversity is overlooked in the diets of different social groups in Brazil.
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Gomes SM, Chaves VM, de Carvalho AM, da Silva EB, de Menezes Neto EJ, de Farias Moura G, da Silva Chaves L, Alves RRN, de Albuquerque UP, de Oliveira Pereira F, and Jacob MCM
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- 2023
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18. Food insecurity in a Brazilian transgender sample during the COVID-19 pandemic.
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Gomes SM, Jacob MCM, Chaves VM, Pereira de Sousa LM, Signorelli MC, Canavese de Oliveira D, de Oliveira Lyra C, and Roberto Augusto Noro L
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- Humans, Socioeconomic Factors, Brazil epidemiology, Cross-Sectional Studies, Pandemics, Food Supply, Food Insecurity, Transgender Persons, COVID-19 epidemiology
- Abstract
Transgender people often live with social vulnerability, largely promoted by gender-based prejudice. Our aim in this article was to raise preliminary data on how the COVID-19 pandemic and perceived prejudice have contributed to the problem of food and food insecurity in the transgender communities in Brazil. We conducted a web-based cross-sectional study, in which 109 transgender people from all regions of Brazil participated. We used the Chi-Square test and Poisson regression modeling with robust variance to estimate the association between food insecurity and the investigated factors. In our sample, 68.8% of transgender people experienced food insecurity, of these, 20.2% experienced severe food insecurity. Our results showed that the difficulties in purchasing food in the transgender community predate the COVID-19 pandemic, yet that the restrictive measures adopted have also impacted overall access to quality food. However, the main explanations for food insecurity were income and employment. In predicting food insecurity, the experiences of prejudice must be considered, and give rise to the hypothesis that specific conditions to which transgender people are exposed explain, to some degree, their vulnerability to food insecurity., Competing Interests: The authors have declared that no competing interests exist., (Copyright: © 2023 Gomes et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)
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- 2023
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19. Biodiversity is overlooked in the diets of different social groups in Brazil.
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Gomes SM, Chaves VM, de Carvalho AM, da Silva EB, de Menezes Neto EJ, de Farias Moura G, da Silva Chaves L, Alves RRN, de Albuquerque UP, de Oliveira Pereira F, and Jacob MCM
- Subjects
- Humans, Brazil, Biodiversity, Meat, Plants, Edible, Social Group, Diet
- Abstract
Food biodiversity is essential for improving nutrition and reducing hunger in populations worldwide. However, in middle and low-income countries, the biodiversity of food production does not necessarily represent food consumption patterns by population. We used Brazil, one of the world's megabiodiverse countries, as a case study to investigate the following questions: what is the prevalence of consumption of biodiverse foods in Brazil, and what are the socioeconomic factors that influence their consumption throughout the country? We used data from a Brazilian representative national dietary survey to estimate the frequency of food consumption of unconventional food plants, edible mushrooms, and wild meat, in according to socioeconomic variables. Thus, we investigated the socioeconomic predictors of Unconventional Food Plants consumption using methods of Machine Learning (ML) and multiple zero-inflated Poisson (ZIP) regression. We showed that biodiverse food consumption in Brazil is low, just related by 1.3% of the population, varying in according to area, ethnicity, age, food insecurity, sex, and educational level. Our findings of low utilization of biodiversity suggest an important mismatch between the rich biodiversity of the country and its representation in the human diet., (© 2023. The Author(s).)
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- 2023
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20. Innovations in cancer nursing education across Europe.
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McInally W, Taylor V, Diez de Los Rios C, Sulosaari V, Dowling M, Trigoso E, Rodrigues Gomes SM, Cesario Dias Ycn AR, Piskorjanac S, Tanay MA, and Hálfdánardóttir H
- Subjects
- Humans, Educational Status, Health Education, Europe, Education, Nursing, Neoplasms
- Published
- 2023
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21. Incorporation of Moringa oleifera Leaf Extract in Yoghurts to Mitigate Children's Malnutrition in Developing Countries.
- Author
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Gomes SM, Leitão A, Alves A, and Santos L
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- Humans, Child, Antioxidants pharmacology, Antioxidants chemistry, Plant Extracts pharmacology, Plant Extracts chemistry, Powders, Developing Countries, Yogurt, Phenols analysis, Food, Fortified, Plant Leaves chemistry, Moringa oleifera chemistry, Malnutrition
- Abstract
Moringa oleifera , which is rich in bioactive compounds, has numerous biological activities and is a powerful source of antioxidants and nutrients. Therefore, M. oleifera can be incorporated into food to mitigate children's malnutrition. In this work, the bioactive compounds were extracted from M. oleifera leaf powder by ultrasound-assisted solid-liquid extraction. The antioxidant and antimicrobial activities and the phenolic composition of the extract were evaluated. The extract presented a total phenolic content of 54.5 ± 16.8 mg gallic acid equivalents/g and IC
50 values of 133.4 ± 12.3 mg/L for DPPH and 60.0 ± 9.9 mg/L for ABTS. Catechin, chlorogenic acid, and epicatechin were the main phenolics identified by HPLC-DAD. The obtained extract and M. oleifera leaf powder were incorporated into yoghurts and their physicochemical and biological properties were studied. The incorporation of M. oleifera did not impair the yoghurts' stability over eight weeks when compared to both negative and positive controls. The extract presented higher stability regarding syneresis but lower stability regarding TPC compared to the powder. Also, the fortified yoghurts presented higher antioxidant properties than the negative control. These findings highlight the potential use of M. oleifera powder and extract as natural additives to produce fortified foods that can be used in the mitigation of malnutrition., Competing Interests: The authors declare no conflict of interest.- Published
- 2023
- Full Text
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22. A Novel Approach in Skin Care: By-Product Extracts as Natural UV Filters and an Alternative to Synthetic Ones.
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Ferreira SM, Gomes SM, and Santos L
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- Humans, Sun Protection Factor, Skin Care, Ultraviolet Rays, Plant Extracts, Skin, Antioxidants, Sunscreening Agents
- Abstract
The cosmetic industry has been focusing on replacing synthetic ingredients with natural ones, taking advantage of their bioactive compounds. This work assessed the biological properties of onion peel (OP) and passion fruit peel (PFP) extracts in topical formulations as an alternative to synthetic antioxidants and UV filters. The extracts were characterized regarding their antioxidant capacity, antibacterial capacity and sun protection factor (SPF) value. Results revealed that the OP extract exhibited better results, which can result from the high concentrations of quercetin, as identified and quantified in HPLC analysis. Afterward, nine formulations of O/W creams were produced with minor changes in the quantity of additives: OP and PFP extract (natural antioxidants and UV filters), BHT (synthetic antioxidant) and oxybenzone (synthetic UV filter). The stability of the formulations was determined for 28 days; it was verified that they remained stable throughout the study period. The assays of the formulations' antioxidant capacity and SPF value revealed that OP and PFP extracts have some photoprotective properties and are excellent sources of antioxidants. As a result, they can be incorporated in daily moisturizers with SPF and sunscreens replacing and/or diminishing the quantities of synthetic ingredients, reducing their negative effects on human health and the environment.
- Published
- 2023
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23. Physical/functional rehabilitation in Brazil: spatiotemporal analysis of the offer in the Public Healthcare System.
- Author
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Gomes SM, Miranda GMD, Sousa FOS, Nascimento CMBD, Lima MLLT, Silva VL, and Vilela MBR
- Subjects
- Humans, Aged, Brazil, Spatio-Temporal Analysis, Physical Therapy Modalities, Delivery of Health Care, Disabled Persons rehabilitation
- Abstract
The complex epidemiological profile of Brazil, the aging population and the proportion of individuals with disabilities have led to a substantial increase in the demand for rehabilitation. The spatiotemporal distribution of the offer of physiotherapy, speech therapy and occupational therapy in the Brazilian public healthcare system from 2007 to 2019 was analyzed for the five macro-regions of the country. Data from the National Register of Health Establishments and census estimates from the Brazilian Institute of Geography and Statistics were used. Indicators of the offer of professionals in these fields services and relative changes in the offer were calculated. The spatial distribution of the relative change in the offer was also determined. A regression model with inflection points was adopted for the analysis of the temporal trend. A growing temporal trend was found in the offer of the three professionals in Brazil as a whole and in all regions of the country, but with a slowdown in growth. Differences were observed in the offer among the regions of the country, revealing healthcare inequality that needs to be overcome. The present findings can assist in planning to expand access to rehabilitation services in the country.
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- 2023
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24. Knowledge, attitudes and practices of nurses regarding oral hygiene of dependent inpatients.
- Author
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Andrade-Leite DB, Martins-Santos SC, Marques-Gomes SM, and Oliveira IJ
- Subjects
- Humans, Inpatients, Cross-Sectional Studies, Health Knowledge, Attitudes, Practice, Clinical Competence, Oral Hygiene, Nurses
- Abstract
Objective: Assess nurses' knowledge, attitudes and practices towards oral hygiene of dependent inpatients., Methods: Quantitative, descriptive, and cross-sectional study. Data were collected through a self-administered questionnaire applied to 100 nurses from internal medicine wards of two hospitals in Northern Portugal, which assessed three dimensions: knowledge, attitudes, and practices regarding oral hygiene. Knowledge, attitudes, and practices in oral care were summarized in statistical descriptions including percentages, frequencies, means, and standard deviations using SPSS version 23 for data analysis., Results: The mean total knowledge score was 13.98 out of 22 and the participants' mean score of the attitudes towards oral care was 48.35 out of 60 points. All participants acknowledge the importance of oral care for inpatients, with 96% associating poor oral hygiene with systemic disease. As for practices, 90% of participants assess the need for oral care of inpatients in the first 24 h, and 61% document the result of this assessment., Conclusion: The results show that although participants are aware of the importance of oral care, knowledge and practices are not consistent. Concerning oral health practices, it is urgent to narrow the gap between evidence and practice and promote oral care standardization., (Copyright © 2022 Elsevier España, S.L.U. All rights reserved.)
- Published
- 2023
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25. Cerebral venous thrombosis in adolescence: Looking beyond the obvious.
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Gomes SM, Figueiredo R, Morais R, Soares S, Fonseca J, Melo C, Sampaio M, and Sousa R
- Abstract
Behçet's disease (BD) is a rare systemic vasculitis with multisystemic involvement. Neurological involvement, called neuro-Behçet's disease (NBD), mostly involves the central nervous system and cerebral venous thrombosis (CVT) is the predominant neurological manifestation in the pediatric age. A 12-year-old female with a past medical history of a CVT, without an identifiable etiology, was admitted with a five-day right fronto-orbital headache. Neuroimage showed a subacute thrombosis of a right superficial sylvian vein, with indirect signs of intracranial hypertension and no imaging signs of vasculitis. Prothrombotic screening and immunologic study were normal. She was started on acetazolamide and hypocoagulation with progressively improving. She had a history of frequent oral aphthae and an episode of a genital ulcer three months before admission. Pathergy test was negative. HLA-B51 was positive. She was diagnosed with NBD and started therapy with colchicine and infliximab. After discharge, the patient remains without symptoms, hypocoagulated, and on infliximab regimen, without complications to report. This case, only diagnosed in the second episode of CVT, is paradigmatic of the difficulty in establishing the diagnosis of BD., Competing Interests: None., (© 2022 Publishing services provided by Elsevier B.V.)
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- 2022
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26. Partnering With Faith-Based Organizations to Offer Flu Vaccination and Other Preventive Services.
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Corley AMS, Gomes SM, Crosby LE, Hopkins M, Cranley D, Lynch B, and Mitchell M
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- Adolescent, Child, Humans, Trust, Vaccination, Faith-Based Organizations, Influenza Vaccines, Influenza, Human prevention & control
- Abstract
In 2019, just one-half of Americans received their influenza vaccine, despite it being safe, effective, and important in preventing serious infection, hospitalization, and death. Black children receive fewer influenza vaccines than their White counterparts. Vaccine hesitancy can hinder influenza vaccine uptake and is partially fueled by ongoing systemic racism and historical abuse leading to medical mistrust in communities of color. Building trust may enhance the transfer of reliable vaccine information and may move people along the spectrum of vaccine intention. We sought to partner with faith-based organizations through a community influenza vaccination event to increase vaccination rates. By leveraging the reach and expertise of trusted voices, such as church "first ladies" and local community leaders, we were able to administer 600 pediatric influenza vaccines between 2016 and 2019. In addition, this event served as a platform to assess whether youth attendees had a place for regular medical care ("medical home") (>80% did in each year assessed) and to conduct preventive screenings. Most children, as reported by their caregivers, had recent medical check-ups (85% in 2016, 84% in 2017, and 82% in 2018). Of the children screened, more than one-third had an abnormal body mass index and one-half had abnormal dentition. By partnering with organizations that are well-embedded in the local community, such as faith-based organizations, health care groups may be able to maximize the impact of their health promotion campaigns., (Copyright © 2022 by the American Academy of Pediatrics.)
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- 2022
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27. Expanding the limits of sex: a systematic review concerning food and nutrition in transgender populations.
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Gomes SM, Jacob MC, Rocha C, Medeiros MF, Lyra CO, and Noro LR
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- Cross-Sectional Studies, Diet, Healthy, Female, Humans, Male, Nutritional Status, Nutrition Therapy, Transgender Persons
- Abstract
Objective: To examine the literature and identify main themes, methods and results of studies concerning food and nutrition addressed in research on transgender populations., Design: A systematic review conducted through July 2020 in the MedLine/PubMed, Scopus and Web of Science databases., Results: Of the 778 studies identified in the databases, we selected thirty-seven. The studies were recent, most of them published after 2015, being produced in Global North countries. The most often used study design was cross-sectional; the least frequently used study design was ethnographic. Body image and weight control were predominant themes (n 25), followed by food and nutrition security (n 5), nutritional status (n 5), nutritional health assistance (n 1) and emic visions of healthy eating (n 1)., Conclusions: The transgender community presents body, food and nutritional relationships traversed by its unique gender experience, which challenges dietary and nutritional recommendations based on the traditional division by sex (male and female). We need to complete the lacking research and understand contexts in the Global South, strategically investing in exploratory-ethnographic research, to develop categories of analysis and recommendations that consider the transgender experience.
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- 2021
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28. Norepinephrine as a spatial memory reset signal.
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Grella SL, Gomes SM, Lackie RE, Renda B, and Marrone DF
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- Adrenergic beta-Agonists pharmacology, Adrenergic beta-Antagonists pharmacology, Animals, Cognition drug effects, Memory, Short-Term drug effects, Memory, Short-Term physiology, Neuronal Plasticity, Neurotransmitter Agents pharmacology, Neurotransmitter Agents physiology, Rats, Signal Transduction drug effects, Spatial Memory physiology, Dentate Gyrus drug effects, Dentate Gyrus metabolism, Isoproterenol pharmacology, Neural Pathways metabolism, Norepinephrine metabolism, Propranolol pharmacology
- Abstract
Contextual information is represented in the hippocampus (HPC) partially through the recruitment of distinct neuronal ensembles. It is believed that reactivation of these ensembles underlies memory retrieval processes. Recently, we showed that norepinephrine input from phasic locus coeruleus activation induces hippocampal plasticity resulting in the recruitment of new neurons and disengagement from previously established representations. We hypothesize that norepinephrine may provide a neuromodulatory mnemonic switch signaling the HPC to move from a state of retrieval to encoding in the presence of novelty, and therefore, plays a role in memory updating. Here, we tested whether bilateral dorsal dentate gyrus (dDG) infusions of the β-adrenergic receptor (BAR) agonist isoproterenol (ISO), administered prior to encoding or retrieval, would impair spatial working and reference memory by reverting, the system to encoding (thereby recruiting new neurons) potentially interfering with the retrieval of the previously established spatial ensemble. We also investigated whether dDG infusions of ISO could promote cognitive flexibility by switching the system to encoding when it is adaptive (ie, when new information is presented, eg, reversal learning). We found that intra-dDG infusions of ISO given prior to retrieval caused deficits in working and reference memory which was blocked by pretreatment with the BAR-antagonist, propranolol (PRO). In contrast, ISO administered prior to reversal learning led to improved performance. These data support our hypothesis that norepinephrine serves as a novelty signal to update HPC contextual representations via BAR activation-facilitated recruitment of new neurons. This can be both maladaptive and adaptive depending on the situation., (Copyright © 2021 Wolters Kluwer Health, Inc. All rights reserved.)
- Published
- 2021
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29. Neonatal Atypical Hemolytic Uremic Syndrome in the Eculizumab Era.
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Gomes SM, Teixeira RP, Rocha G, Soares P, Guimaraes H, Santos P, Jardim J, Barreira JL, and Pinto H
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The atypical hemolytic uremic syndrome (aHUS) in the newborn is a rare disease, with high morbidity. Eculizumab, considered a first-line drug in older children, is not approved in neonates and in children weighing less than 5 kg. We present a 5-day-old female newborn, born at 36 weeks' twin gestation, by emergency cesarean section due to cord prolapse, with birth weight of 2,035 g and Apgar score of 7/7/7, who develops microangiopathic hemolytic anemia, thrombocytopenia, and progressive acute renal failure. In day 5, after diagnosis of aHUS, a daily infusion of fresh frozen plasma begins, with improvement of thrombocytopenia and very slight improvement in renal function. The etiologic study (congenital infection, Shiga toxin, ADAMTS13 activity, directed metabolic study) was normal. C3c was slightly decreased. On day 16 for maintenance of anemia and severe renal failure, she started 300 mg/dose eculizumab. Anemia resolves in 10 weeks and creatinine has normal values after 13 weeks of treatment. The genetic study was normal. In this case, eculizumab is effective in controlling microangiopathy and in the recovery of renal function. Diagnosis of neonatal aHUS can be challenging because of phenotypic heterogeneity and potential overlap with other manifestations that may confound it, such as perinatal asphyxia or sepsis/disseminated intravascular coagulation., Competing Interests: Conflict of Interest None declared., (The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. ( https://creativecommons.org/licenses/by-nc-nd/4.0/ ).)
- Published
- 2021
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30. The prevalence of dermatophytoses in Brazil: a systematic review.
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de Oliveira Pereira F, Gomes SM, Lima da Silva S, Paula de Castro Teixeira A, and Lima IO
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- Arthrodermataceae classification, Arthrodermataceae isolation & purification, Brazil epidemiology, Humans, Onychomycosis epidemiology, Onychomycosis etiology, Prevalence, Risk Factors, Tinea etiology, Tinea Pedis epidemiology, Tinea Pedis etiology, Tinea epidemiology
- Abstract
Dermatophytosis is a common cutaneous mycosis worldwide whose prevalence in Brazil is still unknown. This systematic review has estimated the burden of dermatophytoses from updated literature data reported in the general Brazilian population. We used the following databases: Web of Science, Medline/PubMed, Embase, The Cochrane Library and Scopus for studies published between 2011 and 2020. Original articles with an emphasis on prevalence data for dermatophytosis in the Brazilian population, and diagnosed by culture exam or molecular biology were eligible. We also assessed the methodological quality of the studies. A total of 24 articles met the inclusion criteria and were reviewed. The occurrence of dermatophytoses found in the studies ranged from 4-88.50 %. The pooled prevalence of dermatophytosis for the population studies was 25 % (95 % CI: 24.7-25.3 %). The size of the samples used in the studies ranged from 45 to 36 446 participants, and ages ranged up to 98 years old. The populations studied involved mostly women. The presence of tinea unguium (toenail and fingernail) and tinea pedis were the most frequent dermatophytosis, and we observed a predominance of Trichophyton rubrum , T. interdigitale and T. mentagrophytes . The studies were primarily conducted in patient groups with suspected mycoses and were not entirely representative of the general population. Yet we believe that in the future, more collaborative strategies would improve both diagnostic capacity and epidemiological methodologies, associating the prevalence of dermatophytosis with social and environmental risk factors. This review helps to better understand future epidemiological trends in Brazil and the world.
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- 2021
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31. Angiotensin Converting Enzyme Inhibitors and Angiotensin Receptor Blockers Rescue Memory Defects in Drosophila -Expressing Alzheimer's Disease-Related Transgenes Independently of the Canonical Renin Angiotensin System.
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Lee SH, Gomes SM, Ghalayini J, Iliadi KG, and Boulianne GL
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- Angiotensin Receptor Antagonists, Angiotensin-Converting Enzyme Inhibitors pharmacology, Animals, Drosophila, Humans, Metalloendopeptidases, Renin-Angiotensin System, Transgenes, Alzheimer Disease drug therapy, Alzheimer Disease genetics, Drosophila Proteins genetics
- Abstract
Alzheimer's disease (AD) is a degenerative disorder that causes progressive memory and cognitive decline. Recently, studies have reported that inhibitors of the mammalian renin angiotensin system (RAS) result in a significant reduction in the incidence and progression of AD by unknown mechanisms. Here, we used a genetic and pharmacological approach to evaluate the beneficial effects of angiotensin converting enzyme inhibitors (ACE-Is) and angiotensin receptor blockers (ARBs) in Drosophila expressing AD-related transgenes. Importantly, while ACE orthologs have been identified in Drosophila , other RAS components are not conserved. We show that captopril, an ACE-I, and losartan, an ARB, can suppress a rough eye phenotype and brain cell death in flies expressing a mutant human C99 transgene. Captopril also significantly rescues memory defects in these flies. Similarly, both drugs reduce cell death in Drosophila expressing human A β 42 and losartan significantly rescues memory deficits. However, neither drug affects production, accumulation or clearance of A β 42 Importantly, neither drug rescued brain cell death in Drosophila expressing human Tau, suggesting that RAS inhibitors specifically target the amyloid pathway. Of note, we also observed reduced cell death and a complete rescue of memory deficits when we crossed a null mutation in Drosophila Acer into each transgenic line demonstrating that the target of captopril in Drosophila is Acer. Together, these studies demonstrate that captopril and losartan are able to modulate AD related phenotypes in the absence of the canonical RAS pathway and suggest that both drugs have additional targets that can be identified in Drosophila ., (Copyright © 2020 Lee et al.)
- Published
- 2020
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32. An overview of the sandfly fauna (Diptera: Psychodidae) followed by the detection of Leishmania DNA and blood meal identification in the state of Acre, Amazonian Brazil.
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Araujo-Pereira T, Pita-Pereira D, Baia-Gomes SM, Boité M, Silva F, Pinto IS, de Sousa RLT, Fuzari A, de Souza C, Brazil R, and Britto C
- Subjects
- Animals, Brazil, DNA, Protozoan analysis, Female, Insect Vectors classification, Insect Vectors parasitology, Leishmania isolation & purification, Leishmaniasis, Cutaneous transmission, Polymerase Chain Reaction, Psychodidae classification, DNA analysis, Insect Vectors genetics, Leishmania genetics, Psychodidae parasitology
- Abstract
Background: In Acre state, Brazil, the dissemination of cutaneous leishmaniasis has increased in recent years, with limited knowledge of the potential Leishmania spp. vectors involved., Objectives: Here, data concerning the sandfly fauna of Brasiléia municipality, Leishmania DNA-detection rates and the identification of blood meal sources of insects captured in 2013-2015 are presented., Methods: Parasite detection in female sandflies was performed individually by multiplex polymerase chain reaction (PCR) (Leishmania kDNA/sandfly cacophony-gene), with the identification of Leishmania spp. by hsp70-PCR and sequencing. The identification of blood gut-content from fed females was performed by cyt b-PCR and sequencing., Findings: A total of 4,473 sandflies were captured. A subgroup of 864 non-blood-fed females evaluated for the presence of Leishmania DNA showed 2.9% positivity for Leishmania (Viannia) braziliensis and L. (V.) guyanensis. The identification of blood meal sources was performed in 96 blood-fed females, allowing the identification of 13 vertebrate species. In nine/96 fed females, DNA from L. (V.) shawi, L. (V.) guyanensis, L. (V.) braziliensis and Endotrypanum sp. was detected., Main Conclusions: In Brumptomyia sp. and Evandromyia termitophila, the first report of Leishmania DNA-detection is provided in Acre; Nyssomyia shawi is implicated as potential vector of L. (V.) braziliensis and L. (V.) guyanensis for the first time in Brazil.
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- 2020
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33. [Regime of scarcity: food in the female penitentiary system].
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Sousa LMP, Matos INB, Paiva TRL, Gomes SM, and Freitas CHSM
- Subjects
- Brazil, Eating, Female, Food, Humans, Public Health, Prisoners, Prisons
- Abstract
The female prison population is on the increase in the world. This population is being exposed to precarious conditions of confinement that often prevent or hinder access to food of effective and equitable quality, thereby representing a considerable problem within the scope of public health. This paper aims to understand the aspects of food in the female penitentiary system of the state of Paraíba. It involved research with a qualitative approach, developed in all the female prisons in the state of Paraíba. The participants of this research are 16 women in the prison context. These results show that the context of incarceration makes it impossible to guarantee the right to food, concerning food availability, adequacy, accessibility and stability of supply. The condition of incarcerated women affects the dimension of the right of access to adequate food. Food for human beings must be understood as a process of using nature to produce healthy and civilized people. For this, it is essential that practices that promote the right to healthy food should consider the principles that relate to it and, thus, overcome discriminatory and authoritarian practices.
- Published
- 2020
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34. Wound Healing Effect of Essential Oil Extracted from Eugenia dysenterica DC (Myrtaceae) Leaves.
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Mazutti da Silva SM, Rezende Costa CR, Martins Gelfuso G, Silva Guerra EN, de Medeiros Nóbrega YK, Gomes SM, Pic-Taylor A, Fonseca-Bazzo YM, Silveira D, and Magalhães PO
- Subjects
- Animals, Cell Line, Cell Movement drug effects, Humans, Lipopolysaccharides toxicity, Macrophages drug effects, Macrophages metabolism, Mice, Monocyclic Sesquiterpenes, Nitric Oxide metabolism, Polycyclic Sesquiterpenes, RAW 264.7 Cells, Sesquiterpenes analysis, Sesquiterpenes pharmacology, Eugenia chemistry, Oils, Volatile analysis, Oils, Volatile pharmacology, Plant Leaves chemistry, Wound Healing drug effects
- Abstract
The use of natural oils in topical pharmaceutical preparations has usually presented safe agents for the improvement of human health. Based on research into the immense potential of wound management and healing, we aimed to validate the use of topical natural products by studying the ability of the essential oil of Eugenia dysenterica DC leaves (oEd) to stimulate in vitro skin cell migration. Skin cytotoxicity was evaluated using a fibroblast cell line (L929) by MTT assay. The oil chemical profile was investigated by GC-MS. Moreover, the inhibition of lipopolysaccharide (LPS) induced nitric oxide (NO) production in the macrophage cell line (RAW 264.7) tested. The Chick Chorioallantoic Membrane (CAM) assay was used to evaluate the angiogenic activity and irritating potential of the oil. The oEd induces skin cell migration in a scratch assay at a concentration of 542.2 µg/mL. α-humulene and β-caryophyllene, the major compounds of this oil, as determined by GC-MS, may partly explain the migration effect. The inhibition of nitric oxide by oEd and α-humulene suggested an anti-inflammatory effect. The CAM assay showed that treatment with oEd ≤ 292 µg/mL did not cause skin injury, and that it can promote angiogenesis in vivo. Hence, these results indicate the feasibility of the essential oil of Eugenia dysenterica DC leaves to developed dermatological products capable of helping the body to repair damaged tissue.
- Published
- 2018
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35. Late-Onset Cryopyrin-Associated Periodic Syndromes Caused by Somatic NLRP3 Mosaicism-UK Single Center Experience.
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Rowczenio DM, Gomes SM, Aróstegui JI, Mensa-Vilaro A, Omoyinmi E, Trojer H, Baginska A, Baroja-Mazo A, Pelegrin P, Savic S, Lane T, Williams R, Brogan P, Lachmann HJ, and Hawkins PN
- Abstract
Cryopyrin-associated periodic syndrome (CAPS) is caused by gain-of-function NLRP3 mutations. Recently, somatic NLRP3 mosaicism has been reported in some CAPS patients who were previously classified as "mutation-negative." We describe here the clinical and laboratory findings in eight British adult patients who presented with symptoms typical of CAPS other than an onset in mid-late adulthood. All patients underwent comprehensive clinical and laboratory investigations, including analysis of the NLRP3 gene using Sanger and amplicon-based deep sequencing (ADS) along with measurements of extracellular apoptosis-associated speck-like protein with CARD domain (ASC) aggregates. The clinical phenotype in all subjects was consistent with mid-spectrum CAPS, except a median age at disease onset of 50 years. Sanger sequencing of NLRP3 was non-diagnostic but ADS detected a somatic NLRP3 mutation in each case. In one patient, DNA isolated from blood demonstrated an increase in the mutant allele from 5 to 45% over 12 years. ASC aggregates in patients' serum measured during active disease were significantly higher than healthy controls. This series represents 8% of CAPS patients diagnosed in a single center, suggesting that acquired NLRP3 mutations may not be an uncommon cause of the syndrome and should be sought in all patients with late-onset symptoms otherwise compatible with CAPS. Steadily worsening CAPS symptoms in one patient were associated with clonal expansion of the mutant allele predominantly affecting myeloid cells. Two patients developed AA amyloidosis, which previously has only been reported in CAPS in association with life-long germline NLRP3 mutations.
- Published
- 2017
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36. Lack of gene-language correlation due to reciprocal female but directional male admixture in Austronesians and non-Austronesians of East Timor.
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Gomes SM, van Oven M, Souto L, Morreira H, Brauer S, Bodner M, Zimmermann B, Huber G, Strobl C, Röck AW, Côrte-Real F, Parson W, and Kayser M
- Subjects
- Chromosomes, Human, Y genetics, DNA, Mitochondrial genetics, Female, Humans, Indonesia, Male, Microsatellite Repeats, Polymorphism, Single Nucleotide, Genotype, Language, Population genetics
- Abstract
Nusa Tenggara, including East Timor, located at the crossroad between Island Southeast Asia, Near Oceania, and Australia, are characterized by a complex cultural structure harbouring speakers from two different major linguistic groups of different geographic origins (Austronesian (AN) and non-Austronesian (NAN)). This provides suitable possibilities to study gene-language relationship; however, previous studies from other parts of Nusa Tenggara reported conflicting evidence about gene-language correlation in this region. Aiming to investigate gene-language relationships including sex-mediated aspects in East Timor, we analysed the paternally inherited non-recombining part of the Y chromosome (NRY) and the maternally inherited mitochondrial (mt) DNA in a representative collection of AN- and NAN-speaking groups. Y-SNP (single-nucleotide polymorphism) data were newly generated for 273 samples and combined with previously established Y-STR (short tandem repeat) data of the same samples, and with previously established mtDNA data of 290 different samples with, however, very similar representation of geographic and linguistic coverage of the country. We found NRY and mtDNA haplogroups of previously described putative East/Southeast Asian (E/SEA) and Near Oceanian (NO) origins in both AN and NAN speakers of East Timor, albeit in different proportions, suggesting reciprocal genetic admixture between both linguistic groups for females, but directional admixture for males. Our data underline the dual genetic origin of East Timorese in E/SEA and NO, and highlight that substantial genetic admixture between the two major linguistic groups had occurred, more so via women than men. Our study therefore provides another example where languages and genes do not conform due to sex-biased genetic admixture across major linguistic groups.
- Published
- 2017
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37. Autoinflammatory periodic fever, immunodeficiency, and thrombocytopenia (PFIT) caused by mutation in actin-regulatory gene WDR1.
- Author
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Standing AS, Malinova D, Hong Y, Record J, Moulding D, Blundell MP, Nowak K, Jones H, Omoyinmi E, Gilmour KC, Medlar A, Stanescu H, Kleta R, Anderson G, Nanthapisal S, Gomes SM, Klein N, Eleftheriou D, Thrasher AJ, and Brogan PA
- Subjects
- Actins metabolism, Child, Female, Hereditary Autoinflammatory Diseases etiology, Humans, Immunologic Deficiency Syndromes etiology, Inflammasomes physiology, Interleukin-18 blood, Microfilament Proteins physiology, Phagocytosis, Thrombocytopenia etiology, Hereditary Autoinflammatory Diseases genetics, Immunologic Deficiency Syndromes genetics, Microfilament Proteins genetics, Mutation, Missense, Thrombocytopenia genetics
- Abstract
The importance of actin dynamics in the activation of the inflammasome is becoming increasingly apparent. IL-1β, which is activated by the inflammasome, is known to be central to the pathogenesis of many monogenic autoinflammatory diseases. However, evidence from an autoinflammatory murine model indicates that IL-18, the other cytokine triggered by inflammasome activity, is important in its own right. In this model, autoinflammation was caused by mutation in the actin regulatory gene WDR1 We report a homozygous missense mutation in WDR1 in two siblings causing periodic fevers with immunodeficiency and thrombocytopenia. We found impaired actin dynamics in patient immune cells. Patients had high serum levels of IL-18, without a corresponding increase in IL-18-binding protein or IL-1β, and their cells also secreted more IL-18 but not IL-1β in culture. We found increased caspase-1 cleavage within patient monocytes indicative of increased inflammasome activity. We transfected HEK293T cells with pyrin and wild-type and mutated WDR1 Mutant protein formed aggregates that appeared to accumulate pyrin; this could potentially precipitate inflammasome assembly. We have extended the findings from the mouse model to highlight the importance of WDR1 and actin regulation in the activation of the inflammasome, and in human autoinflammation., (© 2017 Standing et al.)
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- 2017
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38. New WHO recommendations on intraoperative and postoperative measures for surgical site infection prevention: an evidence-based global perspective.
- Author
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Allegranzi B, Zayed B, Bischoff P, Kubilay NZ, de Jonge S, de Vries F, Gomes SM, Gans S, Wallert ED, Wu X, Abbas M, Boermeester MA, Dellinger EP, Egger M, Gastmeier P, Guirao X, Ren J, Pittet D, and Solomkin JS
- Subjects
- Consensus, Global Health, Humans, Infection Control methods, Infection Control standards, Risk Factors, Evidence-Based Medicine, Intraoperative Care, Postoperative Care, Practice Guidelines as Topic, Surgical Wound Infection prevention & control, World Health Organization
- Abstract
Surgical site infections (SSIs) are the most common health-care-associated infections in developing countries, but they also represent a substantial epidemiological burden in high-income countries. The prevention of these infections is complex and requires the integration of a range of preventive measures before, during, and after surgery. No international guidelines are available and inconsistencies in the interpretation of evidence and recommendations in national guidelines have been identified. Considering the prevention of SSIs as a priority for patient safety, WHO has developed evidence-based and expert consensus-based recommendations on the basis of an extensive list of preventive measures. We present in this Review 16 recommendations specific to the intraoperative and postoperative periods. The WHO recommendations were developed with a global perspective and they take into account the balance between benefits and harms, the evidence quality level, cost and resource use implications, and patient values and preferences., (Copyright © 2016 World Health Organization. Published by Elsevier Ltd/Inc/BV. All rights reserved. Published by Elsevier Ltd.. All rights reserved.)
- Published
- 2016
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39. Tart cherry supplementation improves working memory, hippocampal inflammation, and autophagy in aged rats.
- Author
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Thangthaeng N, Poulose SM, Gomes SM, Miller MG, Bielinski DF, and Shukitt-Hale B
- Subjects
- Animals, Behavior Rating Scale, Biomarkers analysis, Cognition, Male, Maze Learning, Motor Activity, Powders, Rats, Rats, Inbred F344, Time Factors, Aging, Autophagy, Dietary Supplements, Encephalitis diet therapy, Hippocampus physiology, Memory, Short-Term, Prunus avium chemistry
- Abstract
High consumption of fruits and vegetables has been associated with reduced risk of debilitating diseases and improved cognition in aged populations. These beneficial effects have been attributed to the phytochemicals found in fruits and vegetables, which have previously been shown to be anti-inflammatory and modulate autophagy. Tart cherries contain a variety of potentially beneficial phytochemicals; however, little research has been done to investigate the effects of tart cherry on the aging brain. Therefore, the purpose of this study was to determine if tart cherry supplementation can improve cognitive and motor function of aged rats via modulation of inflammation and autophagy in the brain. Thirty 19-month-old male Fischer 344 rats were weight-matched and assigned to receive either a control diet or a diet supplemented with 2 % Montmorency tart cherry. After 6 weeks on the diet, rats were given a battery of behavioral tests to assess for strength, stamina, balance, and coordination, as well as learning and working memory. Although no significant effects were observed on tests of motor performance, tart cherry improved working memory of aged rats. Following behavioral testing, the hippocampus was collected for western/densitometric analysis of inflammatory (GFAP, NOX-2, and COX-2) and autophagy (phosphorylated mTOR, Beclin 1, and p62/SQSTM) markers. Tart cherry supplementation significantly reduced inflammatory markers and improved autophagy function. Daily consumption of tart cherry reduced age-associated inflammation and promoted protein/cellular homeostasis in the hippocampus, along with improvements in working memory. Therefore, addition of tart cherry to the diet may promote healthy aging and/or delay the onset of neurodegenerative diseases., Competing Interests: The authors declare that they have no conflict of interest.
- Published
- 2016
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40. New WHO recommendations on preoperative measures for surgical site infection prevention: an evidence-based global perspective.
- Author
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Allegranzi B, Bischoff P, de Jonge S, Kubilay NZ, Zayed B, Gomes SM, Abbas M, Atema JJ, Gans S, van Rijen M, Boermeester MA, Egger M, Kluytmans J, Pittet D, and Solomkin JS
- Subjects
- Consensus, Global Health, Humans, Infection Control methods, Infection Control standards, Risk Factors, Surgical Wound Infection economics, Evidence-Based Medicine, Practice Guidelines as Topic, Preoperative Care, Surgical Wound Infection prevention & control, World Health Organization
- Abstract
Surgical site infections (SSIs) are among the most preventable health-care-associated infections and are a substantial burden to health-care systems and service payers worldwide in terms of patient morbidity, mortality, and additional costs. SSI prevention is complex and requires the integration of a range of measures before, during, and after surgery. No international guidelines are available and inconsistencies in the interpretation of evidence and recommendations of national guidelines have been identified. Given the burden of SSIs worldwide, the numerous gaps in evidence-based guidance, and the need for standardisation and a global approach, WHO decided to prioritise the development of evidence-based recommendations for the prevention of SSIs. The guidelines take into account the balance between benefits and harms, the evidence quality, cost and resource use implications, and patient values and preferences. On the basis of systematic literature reviews and expert consensus, we present 13 recommendations on preoperative preventive measures., (Copyright © 2016 World Health Organization. Published by Elsevier Ltd/Inc/BV. All rights reserved. Published by Elsevier Ltd.. All rights reserved.)
- Published
- 2016
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41. Volatile Organic Compounds Induced by Herbivory of the Soybean Looper Chrysodeixis includens in Transgenic Glyphosate-Resistant Soybean and the Behavioral Effect on the Parasitoid, Meteorus rubens.
- Author
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Strapasson P, Pinto-Zevallos DM, Da Silva Gomes SM, and Zarbin PH
- Subjects
- Animals, Drug Resistance genetics, Female, Glycine pharmacology, Herbivory, Glycine max drug effects, Glycine max parasitology, Volatile Organic Compounds metabolism, Glyphosate, Behavior, Animal drug effects, Glycine analogs & derivatives, Lepidoptera physiology, Glycine max genetics, Glycine max metabolism, Volatile Organic Compounds pharmacology, Wasps drug effects
- Abstract
Transgenic soybean plants (RR) engineered to express resistance to glyphosate harbor a variant of the enzyme EPSPS (5-enolpyruvylshikimate-3-phosphate synthase) involved in the shikimic acid pathway, the biosynthetic route of three aromatic amino acids: phenylalanine, tyrosine, and tryptophan. The insertion of the variant enzyme CP4 EPSPS confers resistance to glyphosate. During the process of genetic engineering, unintended secondary effects are likely to occur. In the present study, we quantified volatile organic compounds (VOCs) emitted constitutively or induced in response to herbivory by the soybean looper Chrysodeixis includens in transgenic soybean and its isogenic (untransformed) line. Since herbivore-induced plant volatiles (HIPVs) are known to play a role in the recruitment of natural enemies, we assessed whether changes in VOC profiles alter the foraging behavior of the generalist endoparasitic larval parasitoid, Meteorus rubens in the transgenic line. Additionally, we assessed whether there was a difference in plant quality by measuring the weight gain of the soybean looper. In response to herbivory, several VOCs were induced in both the conventional and the transgenic line; however, larger quantities of a few compounds were emitted by transgenic plants. Meteorus rubens females were able to discriminate between the odors of undamaged and C. includens-damaged plants in both lines, but preferred the odors emitted by herbivore-damaged transgenic plants over those emitted by herbivore-damaged conventional soybean plants. No differences were observed in the weight gain of the soybean looper. Our results suggest that VOC-mediated tritrophic interactions in this model system are not negatively affected. However, as the preference of the wasps shifted towards damaged transgenic plants, the results also suggest that genetic modification affects that tritrophic interactions in multiple ways in this model system.
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- 2016
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42. Activity of crude extracts from Brazilian cerrado plants against clinically relevant Candida species.
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Correia AF, Silveira D, Fonseca-Bazzo YM, Magalhães PO, Fagg CW, da Silva EC, Gomes SM, Gandolfi L, Pratesi R, and de Medeiros Nóbrega YK
- Subjects
- Antifungal Agents chemistry, Brazil, Microbial Sensitivity Tests, Plant Extracts chemistry, Antifungal Agents pharmacology, Candida drug effects, Eugenia chemistry, Plant Extracts pharmacology, Plants, Medicinal chemistry, Pouteria chemistry
- Abstract
Background: Medicinal plants have traditionally been used in many parts of the world as alternative medicine. Many extracts and essential oils isolated from plants have disclosed biological activity, justifying the investigation of their potential antimicrobial activity. In this study, the in vitro antifungal activity of six Brazilian Cerrado medicinal plant species were evaluated against clinically relevant Candida species., Methods: The crude extract plants were evaluated against American Type Culture Collection (ATCC) standard strains of Candida spp. using disk diffusion method and determining the minimum inhibitory concentration (MIC). The chemical study results were confirmed by HPLC method., Results: All six plant species showed antifungal activity. Among the species studied, Eugenia dysenterica and Pouteria ramiflora showed significant inhibitory activity against C. tropicalis at lowest MIC value of 125 and 500 μg/disc, respectively. The Eugenia dysenterica also disclosed MIC value of 125 μg/disc against C. famata, 250 μg/disc against C. krusei and 500 μg/disc against C. guilliermondii and C. parapsilosis. Pouteria torta, Bauhinia rufa, Erythroxylum daphnites and Erythroxylum subrotundum showed activity against the yeast strains with MIC value of 1000 μg/disc. The chemical study of the most bioactive extracts of Eugenia dysenterica and Pouteria ramiflora revealed catechin derivatives and flavonoids as main components., Conclusions: All six evaluated plant species showed good antifungal potential against several Candida strains. However, E .dysenterica and P. ramiflora showed the higher inhibitory effect against the non-albicans Candida species. Our results may contribute to the continuing search of new natural occurring products with antifungal activity.
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- 2016
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43. Flavonoids electrochemical detection in fruit extracts and total antioxidant capacity evaluation.
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Gomes SM, Ghica ME, Rodrigues IA, de Souza Gil E, and Oliveira-Brett AM
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- Antioxidants, Chromatography, High Pressure Liquid, Flavonoids, Fruit, Phenols, Plant Extracts, Electrochemical Techniques
- Abstract
Phenolic compounds detection in fruit extracts from: açai, bacuri, buriti, blackberry, black mulberry, blueberry, juçara, physalis, raspberry, and tamarillo, have been performed by reverse-phase high performance liquid chromatography with electrochemical detection (RP-HPLC-EC), using two detectors in series: a wall-jet detector flow cell with a glassy carbon electrode, and a thin-layer flow cell detector with a boron doped diamond electrode. This methodology, in gradient elution mode, was successfully used to detect seventeen phenolic compounds in the fruit extracts. The total antioxidant capacity of the fruit extracts by the electrochemical quantitative index (EI) and the method of capture of diphenilpicrilhydrazil (DPPH(●)) free radical "efficient concentration" (EC50), was evaluated. A very good correlation between EI and EC50 assays has been obtained, the fruit with the highest total antioxidant capacity being blackberry, while physalis exhibited the lowest antioxidant power., (Copyright © 2016 Elsevier B.V. All rights reserved.)
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- 2016
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44. 2016 update of the Portuguese recommendations for the use of biological therapies in children and adolescents with Juvenile Idiopathic Arthritis.
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Santos MJ, Conde M, Mourão AF, Ramos FO, Cabral M, Brito I, Ramos MP, Marques RC, Gomes SM, Guedes M, Gonçalves MJ, Estanqueiro P, Zilhão C, Rodrigues M, Henriques C, Salgado M, Canhão H, Fonseca JE, and Gomes JM
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- Adolescent, Child, Decision Trees, Humans, Portugal, Practice Guidelines as Topic, Tumor Necrosis Factor Inhibitors, Arthritis, Juvenile drug therapy, Biological Products therapeutic use
- Abstract
Objective: To provide evidence-based guidance for the rational and safe prescription of biological therapies in children and adolescents with juvenile idiopathic arthritis (JIAs) considering the latest available evidence and the new licensed biologics., Methods: Rheumatologists and Pediatricians with expertise in Pediatric Rheumatology updated the recommendations endorsed by the Portuguese Society of Rheumatology and the Portuguese Society of Pediatrics based on published evidence and expert opinion. The level of agreement with final propositions was voted using an online survey., Results: In total, 20 recommendations to guide the use of biological therapy in children and adolescents with JIAs are issued, comprising 4 general principles and 16 specific recommendations. A consensus was achieved regarding the eligibility and response criteria, maintenance of biological therapy, and procedures in case of non-response, for each JIA category. Specific recommendations concerning safety procedures were also updated., Conclusions: These recommendations take into account the specificities of each JIA category and are intended to continuously improve the management of JIA patients.
- Published
- 2016
45. Daily supplementation with mushroom (Agaricus bisporus) improves balance and working memory in aged rats.
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Thangthaeng N, Miller MG, Gomes SM, and Shukitt-Hale B
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- Aging, Animals, Anti-Inflammatory Agents pharmacology, Anti-Inflammatory Agents therapeutic use, Antioxidants pharmacology, Antioxidants therapeutic use, Cognition Disorders prevention & control, Male, Maze Learning drug effects, Rats, Inbred F344, Agaricus, Cognition drug effects, Diet, Dietary Supplements, Memory, Short-Term drug effects, Postural Balance drug effects
- Abstract
Decline in brain function during normal aging is partly due to the long-term effects of oxidative stress and inflammation. Several fruits and vegetables have been shown to possess antioxidant and anti-inflammatory properties. The present study investigated the effects of dietary mushroom intervention on mobility and memory in aged Fischer 344 rats. We hypothesized that daily supplementation of mushroom would have beneficial effects on behavioral outcomes in a dose-dependent manner. Rats were randomly assigned to receive a diet containing either 0%, 0.5%, 1%, 2%, or 5% lyophilized white button mushroom (Agaricus bisporus); after 8 weeks on the diet, a battery of behavioral tasks was given to assess balance, coordination, and cognition. Rats on the 2% or 5% mushroom-supplemented diet consumed more food, without gaining weight, than rats in the other diet groups. Rats in the 0.5% and 1% group stayed on a narrow beam longer, indicating an improvement in balance. Only rats on the 0.5% mushroom diet showed improved performance in a working memory version of the Morris water maze. When taken together, the most effective mushroom dose that produced improvements in both balance and working memory was 0.5%, equivalent to about 1.5 ounces of fresh mushrooms for humans. Therefore, the results suggest that the inclusion of mushroom in the daily diet may have beneficial effects on age-related deficits in cognitive and motor function., (Published by Elsevier Inc.)
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- 2015
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46. Human settlement history between Sunda and Sahul: a focus on East Timor (Timor-Leste) and the Pleistocenic mtDNA diversity.
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Gomes SM, Bodner M, Souto L, Zimmermann B, Huber G, Strobl C, Röck AW, Achilli A, Olivieri A, Torroni A, Côrte-Real F, and Parson W
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- Asian People genetics, Australia, Chromosomes, Human, Y genetics, DNA, Mitochondrial history, Female, Geography, Haplotypes genetics, History, Ancient, Humans, Male, Molecular Sequence Data, Timor-Leste, DNA, Mitochondrial genetics, Human Migration history, Phylogeny
- Abstract
Background: Distinct, partly competing, "waves" have been proposed to explain human migration in(to) today's Island Southeast Asia and Australia based on genetic (and other) evidence. The paucity of high quality and high resolution data has impeded insights so far. In this study, one of the first in a forensic environment, we used the Ion Torrent Personal Genome Machine (PGM) for generating complete mitogenome sequences via stand-alone massively parallel sequencing and describe a standard data validation practice., Results: In this first representative investigation on the mitochondrial DNA (mtDNA) variation of East Timor (Timor-Leste) population including >300 individuals, we put special emphasis on the reconstruction of the initial settlement, in particular on the previously poorly resolved haplogroup P1, an indigenous lineage of the Southwest Pacific region. Our results suggest a colonization of southern Sahul (Australia) >37 kya, limited subsequent exchange, and a parallel incubation of initial settlers in northern Sahul (New Guinea) followed by westward migrations <28 kya., Conclusions: The temporal proximity and possible coincidence of these latter dispersals, which encompassed autochthonous haplogroups, with the postulated "later" events of (South) East Asian origin pinpoints a highly dynamic migratory phase.
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- 2015
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47. Production and characterization of cosmetic nanoemulsions containing Opuntia ficus-indica (L.) mill extract as moisturizing agent.
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Ribeiro RC, Barreto SM, Ostrosky EA, da Rocha-Filho PA, Veríssimo LM, and Ferrari M
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- Administration, Topical, Adult, Aged, Emulsions, Humans, Middle Aged, Skin drug effects, Skin metabolism, Young Adult, Cosmetics administration & dosage, Ointments administration & dosage, Opuntia chemistry, Plant Extracts administration & dosage
- Abstract
This study aimed to produce and characterize an oil in water (O/W) nanoemulsion containing Opuntia ficus-indica (L.) Mill hydroglycolic extract, as well as evaluate its preliminary and accelerated thermal stability and moisturizing efficacy. The formulations containing 0.5% of xanthan gum (FX) and 0.5% of xanthan gum and 1% of Opuntia ficus-indica MILL extract (FXE) were white, homogeneus and fluid in aspect. Both formulations were stable during preliminary and accelerated stability tests. FX and FXE presented a pH compatible to skin pH (4.5-6.0); droplet size varying from 92.2 to 233.6 nm; a polydispersion index (PDI) around 0.200 and a zeta potential from -26.71 to -47.01 mV. FXE was able to increase the water content of the stratum corneum for 5 h after application on the forearm. The O/W nanoemulsions containing 1% of Opuntia ficus-indica (L.) Mill extract presented suitable stability for at least for 60 days. Besides, this formulation was able to increase the water content of stratum corneum, showing its moisturizing efficacy.
- Published
- 2015
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48. Risk Factors for Mycobacterium abscessus subsp. bolletii infection after laparoscopic surgery during an outbreak in Brazil.
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Baruque Villar G, de Mello Freitas FT, Pais Ramos J, Dias Campos CE, de Souza Caldas PC, Santos Bordalo F, Amorim Ramos TC, do Nascimento Pereira V, Cordeiro-Santos M, Abdalla Santos JH, Coelho Motta G, Gomes SM, Mendes de Souza VM, and de Araujo WN
- Subjects
- Adult, Aged, Aged, 80 and over, Brazil epidemiology, Cross Infection epidemiology, Cross Infection microbiology, Cross Infection prevention & control, Digestive System Surgical Procedures adverse effects, Digestive System Surgical Procedures instrumentation, Disinfectants, Female, Glutaral, Guideline Adherence, Hospitals, Private, Humans, Laparoscopy instrumentation, Male, Middle Aged, Molecular Typing, Mycobacterium Infections, Nontuberculous microbiology, Mycobacterium Infections, Nontuberculous prevention & control, Retrospective Studies, Risk Factors, Surgical Instruments adverse effects, Surgical Instruments microbiology, Surgical Wound Infection microbiology, Surgical Wound Infection prevention & control, Young Adult, Disease Outbreaks, Disinfection standards, Laparoscopy adverse effects, Mycobacterium Infections, Nontuberculous epidemiology, Mycobacterium chelonae classification, Mycobacterium chelonae genetics, Surgical Wound Infection epidemiology
- Abstract
OBJECTIVE To identify risk factors related to Mycobacterium abscessus subsp. bolletii infection during an outbreak, associated with laparoscopic surgery and to propose recommendations for preventing new cases. DESIGN A retrospective cohort study. SETTING A private hospital in Manaus, Brazil. PATIENTS A cohort of 222 patients who underwent laparoscopic surgery between July 2009 and August 2010 by a single surgical team. METHODS We collected information about the patients and the surgical procedure using a standard form. We included sex, age, and variables with P≤0.2 in the bivariate analysis in a logistic regression model. Additionally, we reviewed the procedures for reprocessing the laparoscopic surgery equipment, and the strains obtained with culture were identified by molecular methods. RESULTS We recorded 60 (27%) cases of infection. After multivariate analysis, the duration of surgery beyond 1 hour (odds ratio [OR] 2.4; 95% confidence interval [CI] 1.2-4.5), not to have been the first operated patient on a given day (OR, 2.7; 95% CI, 1.4-5.2), and the use of permanent trocar (OR, 2.2; 95% CI, 1.1-4.2) were associated with infection. We observed that the surgical team attempted to sterilize the equipment in glutaraldehyde solution when sanitary authorities had already prohibited it. Eleven strains presented 100% DNA identity with a single strain, known as BRA100 clone. CONCLUSIONS Because contaminated material can act as vehicle for infection, ensuring adequate sterilization processing of video-assisted surgery equipment was crucial to stopping this single clonal outbreak of nonturbeculous mycobacteria in Brazil.
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- 2015
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49. Stress-induced increases in depression-like and cocaine place-conditioned behaviors are reversed by disruption of memories during reconsolidation.
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Hymel KA, Eans SO, L Sitchenko K, Gomes SM, Lukowsky AL, Medina JM, Sypek EI, Carey AN, and McLaughlin JP
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- Adrenergic beta-Antagonists pharmacology, Animals, Conditioning, Psychological physiology, Cycloheximide pharmacology, Dominance-Subordination, Dose-Response Relationship, Drug, Male, Memory drug effects, Mice, Inbred C57BL, Neuropsychological Tests, Propranolol pharmacology, Protein Synthesis Inhibitors pharmacology, Space Perception drug effects, Space Perception physiology, Stress, Psychological psychology, Swimming, Cocaine pharmacology, Conditioning, Psychological drug effects, Depressive Disorder physiopathology, Dopamine Uptake Inhibitors pharmacology, Memory physiology, Stress, Psychological physiopathology
- Abstract
Maladaptive behavioral responses characteristic of post-traumatic stress disorders are notably resistant to treatment. We hypothesized that the pharmacological disruption of memories activated during reconsolidation might reverse established stress-induced increases in depression-like behaviors and cocaine reward. C57BL/6J mice were subjected to repeated social defeat stress (SDS), and examined for time spent immobile in a subsequent forced swim test (FST). An additional set of SDS-exposed mice were place-conditioned with cocaine, and tested for cocaine-conditioned place preference (CPP). All stress-exposed mice were then subjected to a single additional trial of SDS while under the influence of propranolol or cycloheximide to disrupt memory reconsolidation, then given one additional FST or CPP test the next day. Mice subjected to repeated SDS subsequently demonstrated increases in time spent immobile in the FST or in the cocaine-paired chamber. Vehicle-treatment followed by additional SDS exposure did not alter these behaviors, but propranolol or cycloheximide treatment reversed each of the potentiated responses in a dose-dependent manner. Overall, these results demonstrate that while repeated exposure to a social defeat stressor subsequently increased depression-like behavior and cocaine-CPP, disruption of traumatic memories made labile by re-exposure to SDS during reconsolidation may have therapeutic value in the treatment of established post-traumatic stress disorder-related behaviors.
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- 2014
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50. Restoration of stressor-induced calcium dysregulation and autophagy inhibition by polyphenol-rich açaí (Euterpe spp.) fruit pulp extracts in rodent brain cells in vitro.
- Author
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Poulose SM, Fisher DR, Bielinski DF, Gomes SM, Rimando AM, Schauss AG, and Shukitt-Hale B
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- Animals, Antioxidants pharmacology, Antioxidants therapeutic use, Brain cytology, Brain metabolism, Cell Line, Cognition Disorders drug therapy, Dendrites drug effects, Dopamine, Flavonoids analysis, Flavonoids pharmacology, Flavonoids therapeutic use, Fruit chemistry, Homeostasis, Mice, Phytotherapy, Plant Extracts pharmacology, Plant Extracts therapeutic use, Polyphenols therapeutic use, Proteins metabolism, Rats, Sprague-Dawley, Signal Transduction, Species Specificity, Autophagy drug effects, Brain drug effects, Calcium metabolism, Cognition Disorders metabolism, Euterpe chemistry, Oxidative Stress physiology, Polyphenols pharmacology
- Abstract
Objectives: Oxidative damage to lipids, proteins, and nucleic acids in the brain often causes progressive neuronal degeneration and death that are the focal traits of chronic and acute pathologies, including those involving cognitive decline. The aim of this study was to investigate the specific effects of both Euterpe oleracea and Euterpe precatoria açaí fruit pulp on restoring stressor-induced calcium dysregulation, stunted growth of basal dendrites, and autophagy inhibition using embryonic hippocampal and HT22 hippocampal neurons., Methods: Water-soluble whole fruit pulp extracts from two açaí species were applied to rat primary neurons and HT22 hippocampal neurons with varied time and concentrations. Recovery of neurons from dopamine-induced Ca(2+) dysregulation was measured by live cell imaging using fluorescent microscopy. The effect of açaí fruit pulp extracts on neurons following chemically-induced autophagy inhibition was measured using both immunofluorescence and immunohistochemical techniques., Results: It has been postulated that at least part of the loss of cognitive function in aging may depend on a dysregulation in calcium ion (Ca(2+)) homeostasis and a loss of autophagy function in the brain, which affects numerous signaling pathways and alters protein homeostasis. In the present study, polyphenol-rich fruit pulp extracts from two species of açaí, Euterpe precatoria and Euterpe oleracea, when applied to rat hippocampal primary neuronal cells (E18), caused a significant (P < 0.05) recovery of depolarized brain cells from dopamine-induced Ca(2+) influx. Autophagy, a protein homeostasis mechanism in brain, when blocked by known inhibitors such as bafilomycin A1 or wortmannin, caused a significant reduction in the growth of primary basal dendrites in rodent primary hippocampal neurons and significant accumulation of polyubiquitinated proteins in mouse HT22 hippocampal neurons in culture. However, pretreatment with açaí extracts up to 1 mg/mL significantly increased the length of basal dendrites and attenuated the inhibitor-induced autophagy dysfunction. Açaí extracts activated the phosphorylation of mammalian target of rapamycin, increased the turnover of autophagosomes and MAP1 B LC3-II, and decreased accumulation of LC3-ubiquitin binding P62/SQSTM1., Conclusion: Although the polyphenol profile of Euterpe precatoria showed substantially higher concentrations of major flavonoids han Euterpe oleracea, the relative effects were essentially similar for both species. The study adds to growing evidence that supports the putative health effects of açaí fruit species on brain cells., (Published by Elsevier Inc.)
- Published
- 2014
- Full Text
- View/download PDF
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