101 research outputs found

    Sexually transmitted diseases and the vulnerability of the population in the Alto Solimões region, in Amazonas, Brazil

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    Pessoas que apresentam sintomas de doenças sexualmente transmissíveis na região do Alto Solimões (Amazonas, Brasil), podem procurar farmácias mais próximas de onde residem para tratamento. Este artigo tem por finalidade mostrar como são tratadas e orientadas as pessoas que procuram pelo atendimento em farmácias em vez buscar os serviços de saúde, que são de mais difícil acesso na região. Para tal, realizou-se uma pesquisa de caráter qualitativo e emprego de uma amostra de conveniência. Na pesquisa de campo realizada em três dos nove municípios da região, utilizou-se o “Método do Cliente Misterioso” validado pelo protocolo Situational Analysis of Sexual Health in India (Sashi), desenvolvido pelo London School of Hygiene and Tropical Medicine, já utilizado na Índia, África e no Alto Solimões, seguido de entrevistas semiestruturadas com os mesmos participantes da etapa do cliente misterioso. Observou-se que, quando do uso do Método do Cliente Misterioso, os entrevistados indicaram e venderam antibióticos sem receita médica aos que os procuraram e, quando do uso das entrevistas semiestruturadas, essa prática não foi observada. Em ambas as abordagens, não houve orientação aos clientes sobre os riscos das doenças sexualmente transmissíveis para eles e seus parceiros sexuais. Concluímos com esse estudo que as pessoas que vivem no Alto Solimões estão vulneráveis a essas doenças, sendo necessário que se repense a questão da assistência médica e farmacêutica no âmbito das doenças sexualmente transmissíveis em regiões de difícil acesso do país.People who present symptoms of sexually transmitted diseases in the Alto Solimões region (Amazonas, Brazil) can seek treatment at the pharmacies nearest to their homes. This article has the purpose of showing how people who seek assistance in pharmacies, instead of in the health care services, which are less accessible in the region, are treated and oriented. For this, we made a research of qualitative nature and used a convenience sample. Field research was performed in three of the nine municipalities of the region. The “Mystery Client Method” validated by the Situational Analysis of Sexual Health in India (Sashi) Protocol developed by the London School of Hygiene and Tropical Medicine, already used in India, Africa, and in the Alto Solimões region, was used, followed by semi-structured interviews with the same participants of the mystery client phase. It was observed that, when using the Mystery Client Method, the respondents indicated and sold antibiotics without doctor’s prescriptions to those who sought it, and when using the semi-structured interviews, this practice was not found. In both approaches, there was no orientation to the clients on the risks of the STDs for themselves and their sexual partners. With this study, we conclude that people living in the Alto Solimões region are vulnerable to such diseases, and it is necessary to rethink the issue of the medical and pharmaceutical assistance in the context of the sexually transmitted diseases in regions of difficult access in the country

    Loliolide, a new therapeutic option for neurological diseases? In vitro neuroprotective and anti-inflammatory activities of a monoterpenoid lactone isolated from codium tomentosum

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    Parkinsons Disease (PD) is the second most common neurodegenerative disease worldwide, and is characterized by a progressive degeneration of dopaminergic neurons. Without an effective treatment, it is crucial to find new therapeutic options to fight the neurodegenerative process, which may arise from marine resources. Accordingly, the goal of the present work was to evaluate the ability of the monoterpenoid lactone Loliolide, isolated from the green seaweed Codium tomentosum, to prevent neurological cell death mediated by the neurotoxin 6-hydroxydopamine (6-OHDA) on SH-SY5Y cells and their anti-inflammatory effects in RAW264.7 macrophages. Loliolide was obtained from the diethyl ether extract, purified through column chromatography and identified by NMR spectroscopy. The neuroprotective effects were evaluated by the MTT method. Cells’ exposure to 6-OHDA in the presence of Loliolide led to an increase of cells’ viability in 40%, and this effect was mediated by mitochondrial protection, reduction of oxidative stress condition and apoptosis, and inhibition of the NF-KB pathway. Additionally, Loliolide also suppressed nitric oxide production and inhibited the production of TNF- and IL-6 pro-inflammatory cytokines. The results suggest that Loliolide can inspire the development of new neuroprotective therapeutic agents and thus, more detailed studies should be considered to validate its pharmacological potential.info:eu-repo/semantics/publishedVersio

    Spatial, spatio-temporal, and origin-destination flow analyses of patients with severe acute respiratory syndrome hospitalized for COVID-19 in Southeastern Brazil, 2020-2021

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    Brazil experienced one of the fastest increasing numbers of coronavirus disease (COVID-19) cases worldwide. The Sao Paulo State (SPS) reported a high incidence, particularly in Sao Paulo municipality. This study aimed to identify clusters of incidence and mortality of hospitalized patients with severe acute respiratory syndrome for COVID-19 in the SPS, in 2020–2021, and describe the origin flow pattern of the cases. Cases and mortality risk area clusters were identified through different analyses (spatial clusters, spatio-temporal clusters, and spatial variation in temporal trends) by weighting areas. Ripley’s K12-function verified the spatial dependence between the cases and infrastructure. There were 517,935 reported cases, with 152,128 cases resulting in death. Of the 470,441 patients hospitalized and residing in the SPS, 357,526 remained in the original municipality, while 112,915 did not. Cases and death clusters were identified in the Sao Paulo metropolitan region (SPMR) and Baixada Santista region in the first study period, and in the SPMR and the Campinas, Sao Jose do Rio Preto, Barretos, and Sorocaba municipalities during the second period. We highlight the priority areas for control and surveillance actions for COVID-19, which could lead to better outcomes in future outbreaks

    Evolution and Population Dynamics of Clonal Complex 152 Community-Associated Methicillin-Resistant Staphylococcus aureus

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    Since the late 1990s, changes in the epidemiology of methicillin-resistant Staphylococcus aureus (MRSA) were recognized with the emergence of community-associated MRSA (CA-MRSA). CA-MRSA belonging to clonal complex 152 (CC152), carrying the small staphylococcal cassette chromosome mec (SCCmec) type V and encoding the Panton-Valentine leukocidin (PVL), has been observed in Europe. The aim of this study was to investigate its origin, evolution, and dissemination. Whole-genome sequencing was performed on a global collection of 149 CC152 isolates spanning 20 years (93 methicillin-susceptible S. aureus [MSSA] and 56 MRSA isolates). Core genome phylogeny, Bayesian inference, in silico resistance analyses, and genomic characterization were applied. Phylogenetic analysis revealed two major distinct clades, one dominated by MSSA and the other populated only by MRSA. The MSSA isolates were predominately from sub-Saharan Africa, whereas MRSA was almost exclusively from Europe. The European MRSA isolates all harbored an SCCmec type V (5C2&5) element, whereas other SCCmec elements were sporadically detected in MRSA from the otherwise MSSA-dominated clade, including SCCmec types IV (2B), V (5C2), and XIII (9A). In total, 93% of the studied CC152 isolates were PVL positive. Bayesian coalescent inference suggests an emergence of the European CC152-MRSA in the 1990s, while the CC152 lineage dates back to the 1970s. The CA-MRSA CC152 clone mimics the European CC80 CA-MRSA lineage by its emergence from a PVL-positive MSSA ancestor from North Africa or Europe. The CC152 lineage has acquired SCCmec several times, but acquisition of SCCmec type V (5C2&5) seems associated with expansion of MRSA CC152 in Europe. IMPORTANCE Understanding the evolution of CA-MRSA is important in light of the increasing importance of this reservoir in the dissemination of MRSA. Here, we highlight the story of the CA-MRSA CC152 lineage using whole-genome sequencing on an international collection of CC152. We show that the evolution of this lineage is novel and that antibiotic usage may have the potential to select for the phage-encoded Panton-Valentine leukocidin. The diversity of the strains correlated highly to geography, with higher level of resistance observed among the European MRSA isolates. The mobility of the SCCmec element is mandatory for the emergence of novel MRSA lineages, and we show here distinct acquisitions, one of which is linked to the successful clone found throughout Europe today

    Improving access to community-based pulmonary rehabilitation: 3R protocol for real-world settings with cost-benefit analysis

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    Background: Pulmonary rehabilitation (PR) has demonstrated patients’ physiological and psychosocial improvements, symptoms reduction and health-economic benefits whilst enhances the ability of the whole family to adjust to illness. However, PR remains highly inaccessible due to lack of awareness of its benefits, poor referral and availability mostly in hospitals. Novel models of PR delivery are needed to enhance its implementation while maintaining cost-efficiency. We aim to implement an innovative community-based PR programme and assess its cost-benefit. Methods: A 12-week community-based PR will be implemented in primary healthcare centres where programmes are not available. Healthcare professionals will be trained. 73 patients with CRD and their caregivers (dyads patientcaregivers) will compose the experimental group. The control group will include dyads age- and disease-matched willing to collaborate in data collection but not in PR. Patients/family-centred outcomes will be dyspnoea (modified Medical Research Council Questionnaire), fatigue (Checklist of individual strength and Functional assessment of chronic illness therapy – fatigue), cough and sputum (Leicester cough questionnaire and Cough and sputum assessment questionnaire), impact of the disease (COPD Assessment Test), emotional state (The Hospital Anxiety and Depression Scale), number of exacerbations, healthcare utilisation, health-related quality of life and family adaptability/cohesion (Family Adaptation and Cohesion Scale). Other clinical outcomes will be peripheral (biceps and quadriceps-hand held dynamometer, 1 or 10 repetition-maximum) and respiratory (maximal inspiratory and expiratory pressures) muscle strength, muscle thickness and cross sectional area (biceps brachialis, rectus femoris and diaphragm-ultrasound imaging), exercise capacity (six-minute walk test and one-minute sit to stand test), balance (brief-balance evaluation systems test) and physical activity (accelerometer). Data will be collected at baseline, at 12 weeks, at 3- and 6-months post-PR. Changes in the outcome measures will be compared between groups, after multivariate adjustment for possible confounders, and effect sizes will be calculated. A cost-benefit analysis will be conducted.Discussion: This study will enhance patients access to PR, by training healthcare professionals in the local primary healthcare centres to conduct such programmes and actively involving caregivers. The cost-benefit analysis of this intervention will provide an evidence-based insight into the economic benefit of community-based PR in chronic respiratory diseases. Trial registration: The trial was registered in the ClinicalTrials.gov U.S. National Library of Medicine, on 10th January, 2019 (registration number: NCT03799666). Keywords: Exercise training, Education and psychosocial support, Chronic respiratory diseases, Primary healthcare, Cost-benefit.This work, was funded by Fundo Europeu de Desenvolvimento Regional (FEDER) - Comissão Diretiva do Programa Operacional Regional do Centro and by Fundação para a Ciência e Tecnologia - FCT (SAICT-POL/23926/2016), and partially funded by Programa Operacional Competitividade e Internacionalização (COMPETE), through COMPETE 2020 (POCI-01-0145- FEDER-016701 and POCI-01-0145-FEDER-007628) and FCT (UID/BIM/04501/ 2013 and UID/BIM/04501/2019). CJ has a post-doctoral grant (SFRH/BPD/ 115169/2016) funded by FCT, co-financed by the European Social Fund (POCH) and Portuguese national funds from MCTES (Ministério da Ciência, Tecnologia e Ensino Superior).publishe

    TERT promoter mutations are a major indicator of poor outcome in differentiated thyroid carcinomas

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    Context: Telomerase promoter mutations (TERT) were recently described in follicular cell-derived thyroid carcinomas (FCDTC) and seem to be more prevalent in aggressive cancers. Objectives: We aimed to evaluate the frequency of TERT promoter mutations in thyroid lesions and to investigate the prognostic significance of such mutations in a large cohort of patients with differentiated thyroid carcinomas (DTCs). Design: This was a retrospective observational study. Setting and Patients: We studied 647 tumors and tumor-like lesions. A total of 469 patients with FCDTC treated and followed in five university hospitals were included. Mean follow-up (±SD) was 7.8 ± 5.8 years. Main Outcome Measures: Predictive value of TERT promoter mutations for distant metastasization, disease persistence at the end of follow-up, and disease-specific mortality. Results: TERT promoter mutations were found in 7.5% of papillary carcinomas (PTCs), 17.1% of follicular carcinomas, 29.0% of poorly differentiated carcinomas, and 33.3% of anaplastic thyroid carcinomas. Patients with TERT-mutated tumors were older (P < .001) and had larger tumors (P = .002). In DTCs, TERT promoter mutations were significantly associated with distant metastases (P < .001) and higher stage (P < .001). Patients with DTC harboring TERT promoter mutations were submitted to more radioiodine treatments (P = .009) with higher cumulative dose (P = .004) and to more treatment modalities (P = .001). At the end of follow-up, patients with TERT-mutated DTCs were more prone to have persistent disease (P = .001). TERT promoter mutations were significantly associated with disease-specific mortality [in the whole FCDTC (P < .001)] in DTCs (P < .001), PTCs (P = .001), and follicular carcinomas (P < .001). After adjusting for age at diagnosis and gender, the hazard ratio was 10.35 (95% confidence interval 2.01–53.24; P = .005) in DTC and 23.81 (95% confidence interval 1.36–415.76; P = .03) in PTCs. Conclusions: TERT promoter mutations are an indicator of clinically aggressive tumors, being correlated with worse outcome and disease-specific mortality in DTC. TERT promoter mutations have an independent prognostic value in DTC and, notably, in PTC.We acknowledge GENZYME for funding our work through a research project. This study was supported by the Portuguese Foundation for Science and Technology through PhD Grant SFRH/BD/81940/2011 (to J.V.); PhD Grant SFRH/BD/87887/2012 (to C.T.); PhD Grant SFRH/BD/79135/2011 (to A.A.); and the Scientific Investigation Project PIC/IC/83037/2007. Further funding was obtained from the project “Microenvironment, Metabolism and Cancer,” partially supported by Programa Operacional Regional do Norte (ON.2-O Novo Norte), under the Quadro de Referência Estratégico Nacional, and through the European Regional Development Fund. The work of J.M.C.-T. was supported by Grant PI12/00749-FEDER from the Instituto de Salud Carlos III, the Ministry of Economy and Competitiveness (Madrid, Spain). The Institute of Molecular Pathology and Immunology of the University of Porto (IPATIMUP) is an associate laboratory of the Portuguese Ministry of Science, Technology, and Higher Education, which is partially supported by the Foundation for Science and Technology

    TERT promoter mutations are a major indicator of poor outcome in differentiated thyroid carcinomas

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    Funding: This study was supported by the Portuguese Foundation for Science and Technology through PhD Grant SFRH/BD/81940/ 2011 (to J.V.); PhD Grant SFRH/BD/87887/2012 (to C.T.); PhD Grant SFRH/BD/79135/2011 (to A.A.); and the Scientific Investigation Project PIC/IC/83037/2007. Further funding was obtained from the project “Microenvironment, Metabolism and Cancer,” partially supported by Programa Operacional Regional do Norte (ON.2-O Novo Norte), under the Quadro de Referência Estratégico Nacional, and through the European Regional Development Fund. The work of J.M.C.-T. was supported by Grant PI12/00749-FEDER from the Instituto de Salud Carlos III, the Ministry of Economy and Competitiveness (Madrid, Spain). The Institute of Molecular Pathology and Immunology of the University of Porto (IPATIMUP) is an associate laboratory of the Portuguese Ministry of Science, Technology, and Higher Education, which is partially supported by the Foundation for Science and Technology.Context: Telomerase promoter mutations (TERT) were recently described in follicular cell-derived thyroid carcinomas (FCDTC) and seem to be more prevalent in aggressive cancers. Objectives:Weaimed to evaluate the frequency of TERT promoter mutations in thyroid lesions and to investigate the prognostic significance of such mutations in a large cohort of patients with differentiated thyroid carcinomas (DTCs). Design: This was a retrospective observational study. Setting and Patients: We studied 647 tumors and tumor-like lesions. A total of 469 patients with FCDTC treated and followed in five university hospitals were included. Mean follow-up (±SD) was 7.8 ± 5.8 years. Main Outcome Measures: Predictive value of TERT promoter mutations for distant metastasization, disease persistence at the end of follow-up, and disease-specific mortality. Results: TERT promoter mutations were found in 7.5% of papillary carcinomas (PTCs), 17.1% of follicular carcinomas, 29.0% of poorly differentiated carcinomas, and 33.3% of anaplastic thyroid carcinomas. Patients with TERT-mutated tumors were older (P < .001) and had larger tumors (P = .002). In DTCs, TERT promoter mutations were significantly associated with distant metastases (P< .001) and higher stage (P < .001). Patients with DTC harboring TERT promoter mutations were submitted to more radioiodine treatments (P = .009) with higher cumulative dose (P = .004) and to more treatment modalities (P=.001). At the end of follow-up, patients with TERT-mutated DTCs were more prone to have persistent disease (P=.001). TERT promoter mutations were significantly associated with disease-specific mortality [in the whole FCDTC (P < .001)] in DTCs (P < .001), PTCs (P = .001), and follicular carcinomas (P < .001). After adjusting for age at diagnosis and gender, the hazard ratio was 10.35 (95% confidence interval 2.01-53.24; P = .005) in DTC and 23.81 (95% confidence interval 1.36-415.76; P = .03) in PTCs. Conclusions: TERT promoter mutations are an indicator of clinically aggressive tumors, being correlated with worse outcome and disease-specific mortality in DTC. TERT promoter mutations have an independent prognostic value in DTC and, notably, in PTC.publishersversionpublishe
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