Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 88
Filtrar
Mais filtros

País/Região como assunto
Tipo de documento
Intervalo de ano de publicação
1.
BMC Med Inform Decis Mak ; 24(1): 267, 2024 Sep 27.
Artigo em Inglês | MEDLINE | ID: mdl-39334043

RESUMO

BACKGROUND: Interest in mental health smartphone applications has grown in recent years. Despite their effectiveness and advantages, special attention needs to be paid to two aspects to ensure app engagement: to include patients and professionals in their design and to guarantee their usability. The aim of this study was to analyse the perceived usability and quality of the preliminary version of RegulEm, an app based in the Unified Protocol, as part of the second stage of the app development. METHODS: A parallel mixed methods study was used with 7 professionals and 4 users who were previously involved in the first stage of the development of the app. MARS, uMARS and SUS scales were used, and two focus groups were conducted. Descriptive statistical analysis and a thematic content analysis were performed in order to gather as much information as possible on RegulEm's usability and quality as well as suggestions for improvement. RESULTS: RegulEm's usability was perceived through the SUS scale scores as good by users (75 points) and excellent by professionals (84.64 points), while its quality was perceived through the uMARS and MARS scales as good by both groups, with 4 and 4.14 points out of 5. Different areas regarding RegulEm's usability and suggestions for improvement were identified in both focus groups and 20% of the suggestions proposed were implemented in the refined version of RegulEm. CONCLUSION: RegulEm's usability and quality were perceived as good by users and professionals and different identified areas have contributed to its refinement. This study provides a more complete picture of RegulEm's usability and quality prior analysing its effectiveness, implementation and cost-effectiveness in Spanish public mental health units.


Assuntos
Aplicativos Móveis , Humanos , Aplicativos Móveis/normas , Adulto , Feminino , Masculino , Transtornos Mentais/terapia , Grupos Focais , Pessoa de Meia-Idade , Telemedicina/normas
2.
J Clin Microbiol ; 61(4): e0104922, 2023 04 20.
Artigo em Inglês | MEDLINE | ID: mdl-37014210

RESUMO

The Enterobacter cloacae complex (ECC) encompasses heterogeneous clusters of species that have been associated with nosocomial outbreaks. These species may have different acquired antimicrobial resistance and virulence mechanisms, and their identification is challenging. This study aims to develop predictive models based on matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS) profiles and machine learning for species-level identification. A total of 219 ECC and 118 Klebsiella aerogenes clinical isolates from three hospitals were included. The capability of the proposed method to differentiate the most common ECC species (Enterobacter asburiae, Enterobacter kobei, Enterobacter hormaechei, Enterobacter roggenkampii, Enterobacter ludwigii, and Enterobacter bugandensis) and K. aerogenes was demonstrated by applying unsupervised hierarchical clustering with principal-component analysis (PCA) preprocessing. We observed a distinctive clustering of E. hormaechei and K. aerogenes and a clear trend for the rest of the ECC species to be differentiated over the development data set. Thus, we developed supervised, nonlinear predictive models (support vector machine with radial basis function and random forest). The external validation of these models with protein spectra from two participating hospitals yielded 100% correct species-level assignment for E. asburiae, E. kobei, and E. roggenkampii and between 91.2% and 98.0% for the remaining ECC species; with data analyzed in the three participating centers, the accuracy was close to 100%. Similar results were obtained with the Mass Spectrometric Identification (MSI) database developed recently (https://msi.happy-dev.fr) except in the case of E. hormaechei, which was more accurately identified with the random forest algorithm. In short, MALDI-TOF MS combined with machine learning was demonstrated to be a rapid and accurate method for the differentiation of ECC species.


Assuntos
Algoritmos , Enterobacter cloacae , Humanos , Espectrometria de Massas por Ionização e Dessorção a Laser Assistida por Matriz/métodos
3.
Oncology ; 101(1): 1-11, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36063800

RESUMO

INTRODUCTION: Cancer patients are more susceptible to infections, and infection can be more severe than in patients without cancer diagnosis. We conducted this retrospective study in patients admitted for SARS-CoV-2 infection in order to find differences in inflammatory markers and mortality in cancer patients compared to others. METHODS: We reviewed the electronic records of patients admitted for SARS-CoV-2 infection confirmed by PCR from March to September 2020. Data on socio-demographics, comorbidities, inflammatory makers, and cancer-related features were analyzed. RESULTS: 2,772 patients were admitted for SARS-CoV-2, to the Hospital Universitario Ramón y Cajal in Madrid during this period. Of these, 2,527 (91%) had no history of neoplastic disease, 164 (5.9%) patients had a prior history of cancer but were not undergoing oncological treatment at the time of infection, and 81 (2.9%) were in active treatment. Mortality in patients without a history of cancer was 19.5%, 28.6% for patients with a prior history of cancer, and 34% in patients with active cancer treatment. Patients in active oncology treatment with the highest mortality rate were those diagnosed with lung cancer (OR 5.6 95% CI: 2.2-14.1). In the multivariate study, active oncological treatment (OR 2.259 95% CI: 1.35-3.77) and chemotherapy treatment (OR 3.624 95% CI: 1.17-11.17), were statistically significant factors for the risk of death for the whole group and for the group with active oncological treatment, respectively. CONCLUSION: Cancer patients on active systemic treatment have an increased risk of mortality after SARS-CoV-2 infection, especially with lung cancer or chemotherapy treatment.


Assuntos
COVID-19 , Neoplasias Pulmonares , Humanos , COVID-19/epidemiologia , Oncologia , Estudos Retrospectivos , SARS-CoV-2
4.
Ann Intern Med ; 175(5): 710-719, 2022 05.
Artigo em Inglês | MEDLINE | ID: mdl-35286143

RESUMO

BACKGROUND: Adaptation of existing guidelines can be an efficient way to develop contextualized recommendations. Transparent reporting of the adaptation approach can support the transparency and usability of the adapted guidelines. OBJECTIVE: To develop an extension of the RIGHT (Reporting Items for practice Guidelines in HealThcare) statement for the reporting of adapted guidelines (including recommendations that have been adopted, adapted, or developed de novo), the RIGHT-Ad@pt checklist. DESIGN: A multistep process was followed to develop the checklist: establishing a working group, generating an initial checklist, optimizing the checklist (through an initial assessment of adapted guidelines, semistructured interviews, a Delphi consensus survey, an external review, and a final assessment of adapted guidelines), and approval of the final checklist by the working group. SETTING: International collaboration. PARTICIPANTS: A total of 119 professionals participated in the development process. MEASUREMENTS: Participants' consensus on items in the checklist. RESULTS: The RIGHT-Ad@pt checklist contains 34 items grouped in 7 sections: basic information (7 items); scope (6 items); rigor of development (10 items); recommendations (4 items); external review and quality assurance (2 items); funding, declaration, and management of interest (2 items); and other information (3 items). A user guide with explanations and real-world examples for each item was developed to provide a better user experience. LIMITATION: The RIGHT-Ad@pt checklist requires further validation in real-life use. CONCLUSION: The RIGHT-Ad@pt checklist has been developed to improve the reporting of adapted guidelines, focusing on the standardization, rigor, and transparency of the process and the clarity and explicitness of adapted recommendations. PRIMARY FUNDING SOURCE: None.


Assuntos
Lista de Checagem , Atenção à Saúde , Humanos
5.
Clin Infect Dis ; 73(11): e3970-e3973, 2021 12 06.
Artigo em Inglês | MEDLINE | ID: mdl-32948868

RESUMO

A woman with mild coronavirus disease 2019 developed cervical adenopathy, being diagnosed of Epstein-Barr virus infectious mononucleosis. We performed fine needle aspiration, and demonstrate that severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is found in lymph nodes even in mild disease along with a strong expansion of terminally differentiated effector memory CD4+ T cells, a cell population that is practically absent in lymph nodes.


Assuntos
COVID-19 , Infecções por Vírus Epstein-Barr , Linfócitos T CD4-Positivos , Feminino , Herpesvirus Humano 4 , Humanos , Linfonodos , SARS-CoV-2
6.
Euro Surveill ; 26(18)2021 05.
Artigo em Inglês | MEDLINE | ID: mdl-33960288

RESUMO

Despite social distancing measures implemented in Madrid to prevent the propagation of SARS-CoV-2, a significant increase (57.1%; 28.5 to 38.5 cases/month) in cases of lymphogranuloma venereum was detected during the COVID-19 pandemic. This unusual scenario might have accelerated a shift in Chlamydia trachomatis (CT) epidemiology towards a higher proportion of L genotypes compared with non-L genotypes in CT-positive samples. Our data underscore the importance of surveillance of sexually transmitted infections during the pandemic, in particular among vulnerable populations.


Assuntos
COVID-19 , Linfogranuloma Venéreo , Chlamydia trachomatis/genética , Homossexualidade Masculina , Humanos , Linfogranuloma Venéreo/diagnóstico , Linfogranuloma Venéreo/epidemiologia , Masculino , Pandemias , SARS-CoV-2 , Espanha/epidemiologia
7.
BMC Fam Pract ; 20(1): 45, 2019 03 26.
Artigo em Inglês | MEDLINE | ID: mdl-30914044

RESUMO

BACKGROUND: One of several strategies developed to reduce inappropriate antibiotic use in situations where the indication is not clear is delayed antibiotic prescription (DAP), defined as an antibiotic prescription issued for the patient to take only in case of feeling worse or not feeling better several days after the visit. We conducted a survey to identify DAP use in Spanish primary care settings. METHODS: We surveyed 23 healthcare centers located in 4 autonomous regions where a randomized controlled trial (RCT) on DAP was underway. The primary variable was use of DAP. Categorical and quantitative variables were analyzed by means of the chi-squared test and non-parametric tests, respectively. RESULTS: The survey was sent to 375 healthcare professionals, 215 of whom responded (57.3% response rate), with 46% of these respondents declaring that they had used DAP in routine practice before the RCT started (66.6% afterwards), mostly (91.5%) for respiratory tract infections (RTIs), followed by urinary infections (45.1%). Regarding DAP use for RTIs, the most frequent conditions were pharyngotonsillitis (88.7%), acute bronchitis (62.7%), mild chronic obstructive pulmonary disease exacerbations (59.9%), sinusitis (51.4%), and acute otitis media (45.1%). Most respondents considered that DAP reduced emergency visits (85.4%), scheduled visits (79%) and inappropriate antibiotic use (73.7%) and most also perceived patients to be generally satisfied with the DAP approach (75.6%). Having participated or not in the DAP RCT (74.1% versus 46.2%; p < 0.001), having previously used or not used DAP (86.8% versus 44.2%; p < 0.001), and being a physician versus being a nurse (81.8% versus 18.2%; p < 0.001) were factors that reflected significantly higher rates of DAP use. CONCLUSIONS: The majority of primary healthcare professionals in Spain do not use DAP. Those who use DAP believe that it reduces primary care visits and inappropriate antibiotic use, while maintaining patient satisfaction. Given the limited use of DAP in our setting, and given that its use is mainly limited to RTIs, DAP has considerable potential in terms of its implementation in routine practice.


Assuntos
Antibacterianos/administração & dosagem , Prescrição Inadequada/prevenção & controle , Otite Média/tratamento farmacológico , Padrões de Prática Médica/estatística & dados numéricos , Atenção Primária à Saúde/métodos , Doença Pulmonar Obstrutiva Crônica/tratamento farmacológico , Infecções Respiratórias/tratamento farmacológico , Infecções Urinárias/tratamento farmacológico , Adulto , Progressão da Doença , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Enfermeiras e Enfermeiros , Faringite/tratamento farmacológico , Médicos de Família , Padrões de Prática em Enfermagem/estatística & dados numéricos , Índice de Gravidade de Doença , Sinusite/tratamento farmacológico , Espanha , Inquéritos e Questionários , Fatores de Tempo , Tonsilite/tratamento farmacológico
8.
Ecol Lett ; 21(6): 896-904, 2018 06.
Artigo em Inglês | MEDLINE | ID: mdl-29611321

RESUMO

The processes whereby ecological networks emerge, persist and decay throughout ecosystem development are largely unknown. Here we study networks of plant and arbuscular mycorrhizal fungal (AMF) communities along a 120 000 year soil chronosequence, as they undergo assembly (progression) and then disassembly (retrogression). We found that network assembly and disassembly were symmetrical, self-reinforcing processes that together were capable of generating key attributes of network architecture. Plant and AMF species that had short indirect paths to others in the community (i.e. high centrality), rather than many direct interaction partners (i.e. high degree), were best able to attract new interaction partners and, in the case of AMF species, also to retain existing interactions with plants during retrogression. We then show using simulations that these non-random patterns of attachment and detachment promote nestedness of the network. These results have implications for predicting extinction sequences, identifying focal points for invasions and suggesting trajectories for restoration.


Assuntos
Ecossistema , Micorrizas , Microbiologia do Solo , Ecologia , Raízes de Plantas , Plantas
10.
PLoS Med ; 14(1): e1002207, 2017 01.
Artigo em Inglês | MEDLINE | ID: mdl-28072838

RESUMO

BACKGROUND: Scientific knowledge is in constant development. Consequently, regular review to assure the trustworthiness of clinical guidelines is required. However, there is still a lack of preferred reporting items of the updating process in updated clinical guidelines. The present article describes the development process of the Checklist for the Reporting of Updated Guidelines (CheckUp). METHODS AND FINDINGS: We developed an initial list of items based on an overview of research evidence on clinical guideline updating, the Appraisal of Guidelines for Research and Evaluation (AGREE) II Instrument, and the advice of the CheckUp panel (n = 33 professionals). A multistep process was used to refine this list, including an assessment of ten existing updated clinical guidelines, interviews with key informants (response rate: 54.2%; 13/24), a three-round Delphi consensus survey with the CheckUp panel (33 participants), and an external review with clinical guideline methodologists (response rate: 90%; 53/59) and users (response rate: 55.6%; 10/18). CheckUp includes 16 items that address (1) the presentation of an updated guideline, (2) editorial independence, and (3) the methodology of the updating process. In this article, we present the methodology to develop CheckUp and include as a supplementary file an explanation and elaboration document. CONCLUSIONS: CheckUp can be used to evaluate the completeness of reporting in updated guidelines and as a tool to inform guideline developers about reporting requirements. Editors may request its completion from guideline authors when submitting updated guidelines for publication. Adherence to CheckUp will likely enhance the comprehensiveness and transparency of clinical guideline updating for the benefit of patients and the public, health care professionals, and other relevant stakeholders.


Assuntos
Lista de Checagem , Guias de Prática Clínica como Assunto , Humanos , Guias de Prática Clínica como Assunto/normas
11.
Glob Chang Biol ; 23(12): 5228-5236, 2017 12.
Artigo em Inglês | MEDLINE | ID: mdl-28614605

RESUMO

Substantial amounts of nutrients are lost from soils through leaching. These losses can be environmentally damaging, causing groundwater eutrophication and also comprise an economic burden in terms of lost agricultural production. More intense precipitation events caused by climate change will likely aggravate this problem. So far it is unresolved to which extent soil biota can make ecosystems more resilient to climate change and reduce nutrient leaching losses when rainfall intensity increases. In this study, we focused on arbuscular mycorrhizal (AM) fungi, common soil fungi that form symbiotic associations with most land plants and which increase plant nutrient uptake. We hypothesized that AM fungi mitigate nutrient losses following intensive precipitation events (higher amount of precipitation and rain events frequency). To test this, we manipulated the presence of AM fungi in model grassland communities subjected to two rainfall scenarios: moderate and high rainfall intensity. The total amount of nutrients lost through leaching increased substantially with higher rainfall intensity. The presence of AM fungi reduced phosphorus losses by 50% under both rainfall scenarios and nitrogen losses by 40% under high rainfall intensity. Thus, the presence of AM fungi enhanced the nutrient interception ability of soils, and AM fungi reduced the nutrient leaching risk when rainfall intensity increases. These findings are especially relevant in areas with high rainfall intensity (e.g., such as the tropics) and for ecosystems that will experience increased rainfall due to climate change. Overall, this work demonstrates that soil biota such as AM fungi can enhance ecosystem resilience and reduce the negative impact of increased precipitation on nutrient losses.


Assuntos
Mudança Climática , Ecossistema , Micorrizas/fisiologia , Chuva , Microbiologia do Solo , Nitrogênio/análise , Fósforo , Simbiose
12.
Health Qual Life Outcomes ; 15(1): 126, 2017 Aug 30.
Artigo em Inglês | MEDLINE | ID: mdl-28851437

RESUMO

BACKGROUND: Identifying scientific literature addressing patients' views and preferences is complex due to the wide range of studies that can be informative and the poor indexing of this evidence. Given the lack of guidance we developed a search strategy to retrieve this type of evidence. METHODS: We assembled an initial list of terms from several sources, including the revision of the terms and indexing of topic-related studies and, methods research literature, and other relevant projects and systematic reviews. We used the relative recall approach, evaluating the capacity of the designed search strategy for retrieving studies included in relevant systematic reviews for the topic. We implemented in practice the final version of the search strategy for conducting systematic reviews and guidelines, and calculated search's precision and the number of references needed to read (NNR). RESULTS: We assembled an initial version of the search strategy, which had a relative recall of 87.4% (yield of 132/out of 151 studies). We then added some additional terms from the studies not initially identified, and re-tested this improved version against the studies included in a new set of systematic reviews, reaching a relative recall of 85.8% (151/out of 176 studies, 95% CI 79.9 to 90.2). This final version of the strategy includes two sets of terms related with two domains: "Patient Preferences and Decision Making" and "Health State Utilities Values". When we used the search strategy for the development of systematic reviews and clinical guidelines we obtained low precision values (ranging from 2% to 5%), and the NNR from 20 to 50. CONCLUSIONS: This search strategy fills an important research gap in this field. It will help systematic reviewers, clinical guideline developers, and policy-makers to retrieve published research on patients' views and preferences. In turn, this will facilitate the inclusion of this critical aspect when formulating heath care decisions, including recommendations.


Assuntos
Tomada de Decisões , Preferência do Paciente , Humanos , Literatura de Revisão como Assunto
13.
Antimicrob Agents Chemother ; 60(2): 1158-61, 2016 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-26643341

RESUMO

We analyzed fosfomycin susceptibility results in Pseudomonas aeruginosa clinical isolates obtained by MIC gradient strips and disk diffusion methods using two different inocula, 10(8) and 10(6) CFU/ml, and compared them to the agar dilution reference method. Essential and categorical agreements were 93.6% and 95%, respectively, for the 10(6) CFU/ml alternative inoculum, and they were 67.6% and 78.2%, respectively, for the standard inoculum (10(8) CFU/ml). The use of the 10(6) CFU/ml inoculum improves the agreement values and inhibition zone readings.


Assuntos
Antibacterianos/farmacologia , Fosfomicina/farmacologia , Testes de Sensibilidade Microbiana/métodos , Testes de Sensibilidade Microbiana/normas , Pseudomonas aeruginosa/efeitos dos fármacos , Mutação , Pseudomonas aeruginosa/genética , Reprodutibilidade dos Testes
14.
Sex Transm Dis ; 43(7): 414-9, 2016 07.
Artigo em Inglês | MEDLINE | ID: mdl-27322040

RESUMO

BACKGROUND: Since 2003, outbreaks of lymphogranuloma venereum (LGV) with anorectal syndrome have been increasingly recognized in many Western countries. All of them have been classified as LGV serovar L2b, mainly occurring in human immunodeficiency virus (HIV)-infected men who have had sex with men (MSM). We describe a series of 26 diagnosed cases of LGV proctitis in downtown Madrid, Spain, in 2014, after implementing routine diagnostic procedures for this disease in symptomatic MSM. METHODS: We conducted an observational study of patients with symptomatic proctitis attending an outpatient infectious diseases clinic in Madrid, Spain during calendar year 2014. Clinical, epidemiological, laboratory, and therapeutic data were gathered and analyzed. RESULTS: Twenty-six patients were included in the analysis. All were MSM, and 24 of them were HIV-positive. All patients reported having acute proctitis symptoms including tenesmus (85%), pain (88%), constipation (62%), or anal discharge (96%). Proctoscopy showed mucopurulent exudate (25 patients [96%]), and rectal bleeding, with mucosal erythema and/or oedema in all cases. Rectal swabs were obtained from all patients, and LGV serovar L2 was confirmed in all of them. The cure rate was 100% after standard treatments with doxycycline 100 mg twice per day for 3 weeks. Simultaneous rectal infections with other sexually transmitted pathogens (gonorrhoea, herpes simplex virus, Mycoplasma genitalium) and systemic sexually transmitted diseases (STDs) (syphilis, acute HIV, and hepatitis C infections) were also documented in 12 patients (46%), but these co-infections did not appear to influence the clinical manifestations of LGV. CONCLUSIONS: Anorectal LGV is a common cause of acute proctitis and proctocolitis among HIV-infected MSM who practice unprotected anal sex, and it is frequently associated with other rectal STDs. The implementation of routine screening and prompt diagnosis of these rectal infections should be mandatory in all clinical settings attended by HIV and STD patients.


Assuntos
Infecções por HIV/complicações , Linfogranuloma Venéreo/diagnóstico por imagem , Proctite/etiologia , Doenças Retais/diagnóstico por imagem , Infecções Sexualmente Transmissíveis/diagnóstico por imagem , Adulto , Homossexualidade Masculina , Humanos , Linfogranuloma Venéreo/complicações , Linfogranuloma Venéreo/epidemiologia , Linfogranuloma Venéreo/patologia , Masculino , Pessoa de Meia-Idade , Proctite/patologia , Doenças Retais/complicações , Doenças Retais/epidemiologia , Doenças Retais/patologia , Infecções Sexualmente Transmissíveis/complicações , Infecções Sexualmente Transmissíveis/epidemiologia , Infecções Sexualmente Transmissíveis/patologia , Espanha/epidemiologia , Sexo sem Proteção
15.
Antimicrob Agents Chemother ; 59(6): 3406-12, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-25824224

RESUMO

The aim of this study was to determine the impact of carbapenemase-producing Enterobacteriaceae (CPE) in Spain in 2013 by describing the prevalence, dissemination, and geographic distribution of CPE clones, and their population structure and antibiotic susceptibility. From February 2013 to May 2013, 83 hospitals (about 40,000 hospital beds) prospectively collected nonduplicate Enterobacteriaceae using the screening cutoff recommended by EUCAST. Carbapenemase characterization was performed by phenotypic methods and confirmed by PCR and sequencing. Multilocus sequencing types (MLST) were determined for Klebsiella pneumoniae and Escherichia coli. A total of 702 Enterobacteriaceae isolates met the inclusion criteria; 379 (54%) were CPE. OXA-48 (71.5%) and VIM-1 (25.3%) were the most frequent carbapenemases, and K. pneumoniae (74.4%), Enterobacter cloacae (10.3%), and E. coli (8.4%) were the species most affected. Susceptibility to colistin, amikacin, and meropenem was 95.5%, 81.3%, and 74.7%, respectively. The most prevalent sequence types (STs) were ST11 and ST405 for K. pneumoniae and ST131 for E. coli. Forty-five (54.1%) of the hospitals had at least one CPE case. For K. pneumoniae, ST11/OXA-48, ST15/OXA-48, ST405/OXA-48, and ST11/VIM-1 were detected in two or more Spanish provinces. ST11 isolates carried four carbapenemases (VIM-1, OXA-48, KPC-2, and OXA-245), but ST405 isolates carried OXA-48 only. A wide interregional spread of CPE in Spain was observed, mainly due to a few successful clones of OXA-48-producing K. pneumoniae (e.g., ST11 and ST405). The dissemination of OXA-48-producing E. coli is a new finding of public health concern. According to the susceptibilities determined in vitro, most of the CPE (94.5%) had three or more options for antibiotic treatment.


Assuntos
Antibacterianos/farmacologia , Proteínas de Bactérias/metabolismo , Colistina/farmacologia , Enterobacteriaceae/efeitos dos fármacos , Enterobacteriaceae/enzimologia , Tienamicinas/farmacologia , beta-Lactamases/metabolismo , Idoso , Escherichia coli/efeitos dos fármacos , Escherichia coli/enzimologia , Humanos , Klebsiella pneumoniae/efeitos dos fármacos , Klebsiella pneumoniae/enzimologia , Meropeném , Testes de Sensibilidade Microbiana , Tipagem de Sequências Multilocus , Estudos Prospectivos , Espanha
16.
New Phytol ; 205(4): 1565-1576, 2015 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-25640965

RESUMO

Little is known about the response of arbuscular mycorrhizal fungal communities to ecosystem development. We use a long-term soil chronosequence that includes ecosystem progression and retrogression to quantify the importance of host plant identity as a factor driving fungal community composition during ecosystem development. We identified arbuscular mycorrhizal fungi and plant species from 50 individual roots from each of 10 sites spanning 5-120 000 yr of ecosystem age using terminal restriction fragment length polymorphism (T-RFLP), Sanger sequencing and pyrosequencing. Arbuscular mycorrhizal fungal communities were highly structured by ecosystem age. There was strong niche differentiation, with different groups of operational taxonomic units (OTUs) being characteristic of early succession, ecosystem progression and ecosystem retrogression. Fungal alpha diversity decreased with ecosystem age, whereas beta diversity was high at early stages and lower in subsequent stages. A total of 39% of the variance in fungal communities was explained by host plant and site age, 29% of which was attributed to host and the interaction between host and site (24% and 5%, respectively). The strong response of arbuscular mycorrhizal fungi to ecosystem development appears to be largely driven by plant host identity, supporting the concept that plant and fungal communities are tightly coupled rather than independently responding to habitat.


Assuntos
Ecossistema , Micorrizas/fisiologia , Plantas/microbiologia , Biodiversidade , Biomassa , Dados de Sequência Molecular , Análise Multivariada , Micorrizas/genética , Análise de Sequência de DNA
17.
CMAJ ; 186(16): 1211-9, 2014 Nov 04.
Artigo em Inglês | MEDLINE | ID: mdl-25200758

RESUMO

BACKGROUND: Clinical guidelines should be updated to maintain their validity. Our aim was to estimate the length of time before recommendations become outdated. METHODS: We used a retrospective cohort design and included recommendations from clinical guidelines developed in the Spanish National Health System clinical guideline program since 2008. We performed a descriptive analysis of references, recommendations and resources used, and a survival analysis of recommendations using the Kaplan-Meier method. RESULTS: We included 113 recommendations from 4 clinical guidelines with a median of 4 years since the most recent search (range 3.9-4.4 yr). We retrieved 39 136 references (range 3343-14 787) using an exhaustive literature search, 668 of which were related to the recommendations in our sample. We identified 69 (10.3%) key references, corresponding to 25 (22.1%) recommendations that required updating. Ninety-two percent (95% confidence interval 86.9-97.0) of the recommendations were valid 1 year after their development. This probability decreased at 2 (85.7%), 3 (81.3%) and 4 years (77.8%). INTERPRETATION: Recommendations quickly become outdated, with 1 out of 5 recommendations being out of date after 3 years. Waiting more than 3 years to review a guideline is potentially too long.


Assuntos
Difusão de Inovações , Guias de Prática Clínica como Assunto , Pesquisa Translacional Biomédica , Estudos de Coortes , Medicina Baseada em Evidências , Fidelidade a Diretrizes , Humanos , Reprodutibilidade dos Testes , Estudos Retrospectivos , Espanha
18.
Microbiol Spectr ; 12(1): e0285523, 2024 Jan 11.
Artigo em Inglês | MEDLINE | ID: mdl-38095475

RESUMO

IMPORTANCE: Numerous international organizations, including the World Health Organization, have been drawing attention to the global increase in sexually transmitted infections. Twenty years ago, lymphogranuloma venereum (LGV) was mainly considered a tropical disease; in recent decades, however, LGV has been increasingly present in high-income countries. This increase has been linked to men who have sex with men who participate in highly interconnected sexual networks, leading to a rapid spread of LGV. This study focuses on the spread of LGV, presenting the largest time series of LGV prevalence in Spain, which includes more than a thousand diagnosed cases in one large city. The number of LGV cases diagnosed was analyzed over time, and a selection of strains was subjected to molecular genotyping. The results indicate that the LGV epidemic is gradually evolving toward an increasingly complex diversification due to the selection of successful genovariants that have emerged by mutation and recombination events, suggesting that we are moving toward an unpredictable scenario.


Assuntos
Epidemias , Linfogranuloma Venéreo , Minorias Sexuais e de Gênero , Masculino , Humanos , Linfogranuloma Venéreo/epidemiologia , Linfogranuloma Venéreo/diagnóstico , Chlamydia trachomatis/genética , Homossexualidade Masculina
19.
Cochrane Database Syst Rev ; (2): CD001792, 2013 Feb 28.
Artigo em Inglês | MEDLINE | ID: mdl-23450533

RESUMO

BACKGROUND: Post-dural (post-lumbar or post-spinal) puncture headache (PDPH) is one of the most common complications of diagnostic, therapeutic or inadvertent lumbar punctures. Many drug options have been used to prevent headache in clinical practice and have also been tested in some clinical studies, but there are still some uncertainties about their clinical effectiveness. OBJECTIVES: To assess the effectiveness and safety of drugs for preventing PDPH in adults and children. SEARCH METHODS: The search strategy included the Cochrane Central Register of Controlled Trials (CENTRAL, The Cochrane Library 2012, Issue 5), MEDLINE (from 1950 to May 2012), EMBASE (from 1980 to May 2012) and CINAHL (from 1982 to June 2012). There was no language restriction. SELECTION CRITERIA: We considered randomised controlled trials (RCTs) that assessed the effectiveness of any drug used for preventing PDPH. DATA COLLECTION AND ANALYSIS: Review authors independently selected studies, assessed risks of bias and extracted data. We estimated risk ratios (RR) for dichotomous data and mean differences (MD) for continuous outcomes. We calculated a 95% confidence interval (CI) for each RR and MD. We did not undertake meta-analysis because participants' characteristics or assessed doses of drugs were too different in the included studies. We performed an intention-to-treat (ITT) analysis. MAIN RESULTS: We included 10 RCTs (1611 participants) in this review with a majority of women (72%), mostly parturients (women in labour) (913), after a lumbar puncture for regional anaesthesia. Drugs assessed were epidural and spinal morphine, spinal fentanyl, oral caffeine, rectal indomethacin, intravenous cosyntropin, intravenous aminophylline and intravenous dexamethasone.All the included RCTs reported data on the primary outcome, i.e. the number of participants affected by PDPH of any severity after a lumbar puncture. Epidural morphine and intravenous cosyntropin reduced the number of participants affected by PDPH of any severity after a lumbar puncture when compared to placebo. Also, intravenous aminophylline reduced the number of participants affected by PDPH of any severity after a lumbar puncture when compared to no intervention, while intravenous dexamethasone increased it. Spinal morphine increased the number of participants affected by pruritus when compared to placebo, and epidural morphine increased the number of participants affected by nausea and vomiting when compared to placebo. Oral caffeine increased the number of participants affected by insomnia when compared to placebo.The remainder of the interventions analysed did not show any relevant effect for any of the outcomes.None of the included RCTs reported the number of days that patients stayed in hospital. AUTHORS' CONCLUSIONS: Morphine and cosyntropin have shown effectiveness for reducing the number of participants affected by PDPH of any severity after a lumbar puncture, when compared to placebo, especially in patients with high risk of PDPH, such as obstetric patients who have had an inadvertent dural puncture. Aminophylline also reduced the number of participants affected by PDPH of any severity after a lumbar puncture when compared to no intervention in patients undergoing elective caesarean section. Dexamethasone increased the risk of PDPH, after spinal anaesthesia for caesarean section, when compared to placebo. Morphine also increased the number of participants affected by adverse events (pruritus and nausea and vomiting)There is a lack of conclusive evidence for the other drugs assessed (fentanyl, caffeine, indomethacin and dexamethasone).These conclusions should be interpreted with caution, owing to the lack of information, to allow correct appraisal of risk of bias and the small sample sizes of studies.


Assuntos
Analgésicos/administração & dosagem , Cefaleia Pós-Punção Dural/prevenção & controle , Adulto , Aminofilina/administração & dosagem , Cafeína/administração & dosagem , Criança , Cosintropina/administração & dosagem , Dexametasona/administração & dosagem , Dexametasona/efeitos adversos , Vias de Administração de Medicamentos , Feminino , Fentanila/administração & dosagem , Humanos , Indometacina/administração & dosagem , Masculino , Morfina/administração & dosagem , Morfina/efeitos adversos , Ensaios Clínicos Controlados Aleatórios como Assunto , Punção Espinal/efeitos adversos
20.
Front Psychol ; 14: 1160692, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37920733

RESUMO

Background: Post COVID-19 syndrome, defined as the persistence of COVID-19 symptoms beyond 3 months, is associated with a high emotional burden. Post COVID-19 patients frequently present comorbid anxiety, depressive and related disorders (emotional disorders, EDs) which have an important impact on their quality of life. Unfortunately, psychological interventions to manage these EDs are rarely provided to post COVID-19 patients. Also importantly, most psychological interventions do not address comorbidity, namely simultaneous EDs present in COVID-19 patients. This study will explore the clinical utility and acceptability of a protocol-based cognitive-behavioral therapy called the Unified Protocol for the transdiagnostic treatment of EDs in patients suffering post COVID-19 condition. Methods: A multiple baseline n-of-1 trial will be used, as it allows participants to be their own comparison control. Sample will be composed of 60 patients diagnosed with post COVID-19 conditions and comorbid EDs from three Spanish hospitals. After meeting the eligibility criteria, participants will answer the pre-assessment protocol and then they will be randomly assigned to three different baseline conditions (6, 8, or 10 days of assessments before the intervention). Participants and professionals will be unblinded to participants' allocation. Once the baseline assessment has been completed, participants will receive the online psychological individual intervention through video-calls. The Unified Protocol intervention will comprise 8 sessions of a 1 h duration each. After the intervention, participants will answer the post-assessment protocol. Additional follow-up assessments will be conducted at one, three, six, and twelve months after the intervention. Primary outcomes will be anxiety and depressive symptoms. Secondary outcomes include quality of life, emotion dysregulation, distress tolerance, and satisfaction with the programme. Data analyses will include between-group and within-group differences and visual analysis of patients' progress. Discussion: Results from this study will be disseminated in scientific journals. These findings may help to provide valuable information in the implementation of psychological interventions for patients suffering post COVID-19 conditions. Clinical trial registration: https://clinicaltrials.gov, identifier (NCT05581277).

SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA