10 research outputs found
Catálogo Taxonômico da Fauna do Brasil: setting the baseline knowledge on the animal diversity in Brazil
The limited temporal completeness and taxonomic accuracy of species lists, made available in a traditional manner in scientific publications, has always represented a problem. These lists are invariably limited to a few taxonomic groups and do not represent up-to-date knowledge of all species and classifications. In this context, the Brazilian megadiverse fauna is no exception, and the Catálogo Taxonômico da Fauna do Brasil (CTFB) (http://fauna.jbrj.gov.br/), made public in 2015, represents a database on biodiversity anchored on a list of valid and expertly recognized scientific names of animals in Brazil. The CTFB is updated in near real time by a team of more than 800 specialists. By January 1, 2024, the CTFB compiled 133,691 nominal species, with 125,138 that were considered valid. Most of the valid species were arthropods (82.3%, with more than 102,000 species) and chordates (7.69%, with over 11,000 species). These taxa were followed by a cluster composed of Mollusca (3,567 species), Platyhelminthes (2,292 species), Annelida (1,833 species), and Nematoda (1,447 species). All remaining groups had less than 1,000 species reported in Brazil, with Cnidaria (831 species), Porifera (628 species), Rotifera (606 species), and Bryozoa (520 species) representing those with more than 500 species. Analysis of the CTFB database can facilitate and direct efforts towards the discovery of new species in Brazil, but it is also fundamental in providing the best available list of valid nominal species to users, including those in science, health, conservation efforts, and any initiative involving animals. The importance of the CTFB is evidenced by the elevated number of citations in the scientific literature in diverse areas of biology, law, anthropology, education, forensic science, and veterinary science, among others
Ultrabrief (0.3 ms) or Brief (0.5 ms) Pulses for Right Unilateral Electroconvulsive Therapy Is There a Difference in Seizure Thresholds?
Objectives: To compare the minimum charge to elicit a seizure using 2 different pulse widths, the brief pulse (0.5 milliseconds [ms]) and the ultrabrief pulse (0.3 ms).Methods: We compared retrospectively the last 30 patients in our ECT unit whose seizure thresholds were titrated using a pulse width of 0.5 ms to the last 30 patients whose seizure thresholds were titrated using a pulse width of 0.3 ms. the former were regular clinical patients, and the latter were participating in a clinical trial on the use of ultrabrief pulse treatment. All titrations were performed with right unilateral electrode positioning. Most patients continued to use psychotropic medications.Results: Initial seizure threshold (as measured in millicoulombs [mC]) for the brief pulse group (0.5ms) was 16 (n = 1); 32 (n = 21), and 64 (n = 8); whereas for the ultrabrief pulse group (0.3 ms), it was 9.2 (n = 3), 38.4 (n = 21), 19.2 (n = 3), 76.8 (n = 2), and 307.2 (n = 1). Excluding the outlier, there was no statistical difference between mean seizure thresholds.Conclusions: If we exclude the outlier from the ultrabrief group (seizure threshold [ST], 307 mC), we can observe that most of the patients in both groups had an ST between 30 and 40 mC. No patient in the brief pulse group showed a lower ST than 16 mC, probably because this was the first step of titration for this group. the data suggest that the difference between 0.3 and 0.5 ms may not be big, although randomized prospective studies with a more precise and similar steps used for titration are needed. Clinical efficacy was not compared in the present study.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Universidade Federal de São Paulo, São Paulo, BrazilIPAN, São Paulo, BrazilUniv São Paulo, São Paulo, BrazilUniversidade Federal de São Paulo, São Paulo, BrazilFAPESP: 2006/03419-9Web of Scienc
A política externa de Lula da Silva: a estratégia da autonomia pela diversificação Lula da Silva's foreign policy: the autonomy through diversification strategy
O objetivo deste artigo é analisar as mudanças trazidas pela política externa do primeiro governo Lula da Silva (2003-2006). Para discutir o tema, utilizaremos o trabalho de Hermann (1990) sobre as motivações das mudanças na política externa dos Estados, integrando-o com insights construtivistas, que são úteis para examinar o papel das idéias na formulação da política externa brasileira depois de 2003. Para complementar nossa análise, utilizaremos três noções - "autonomia pela distância", "autonomia pela participação" e "autonomia pela diversificação" - que explicam as principais transformações pelas quais passou a política externa brasileira da década de 1980 até meados da primeira década deste século. Concluiremos demonstrando como a idéia de "autonomia pela diversificação" se aplica melhor ao período analisado, considerando que os dois primeiros níveis de Hermann, ajustes e mudanças de programa aconteceram de fato. Sugerimos que o terceiro nível, mudanças de problemas/metas, poderá efetivar-se com a consolidação e ampliação dos dois primeiros níveis.<br>The objective of this article is to analyze the changes brought about by the foreign policy of Lula da Silva's first government (2003-2006). To discuss the topic, we will make use of Hermann's (1990) article on foreign policy change and the motivation behind it, integrating it with constructivist insights useful to examine the roles of the ideas in the formulation of the Brazilian foreign policy after 2003. To compliment our analysis, we will make use of three notions: autonomy through distance, autonomy through participation, and autonomy through diversification. These notions explain the main changes occurring in Brazilian foreign policy from 1980 through to the mid-2000s. We will conclude by demonstrating how the autonomy through diversification best applies to the aforementioned period, acknowledging that the first two levels of Hermann's theory, adjustment change and program change, did in fact happen. We suggest that the third level, problem/goal changes, can come into effect with the consolidation and amplification of the first two levels
Retrospective study of stem cell transplantation for acute myeloid leukemia (AML) : the Brazilian experience
Dados do Registro Internacional de Transplante de Medula Óssea, International Bone Marrow Transplant Registry (IBMTR) contribuem para o progresso do transplante de medula óssea (TMO) em todo o mundo. Neste artigo relatamos a experiência brasileira em leucemia mielóide aguda e comparamos os resultados do TMO com os dados internacionais. Foi realizado um estudo retrospectivo com dados de tratamento de LMA com o TMO de 16 instituições brasileiras. A análise estatística dos transplantes da modalidade autogênica (TMO auto) e alogênica (TMO alo) foi realizada com o método de Kaplan-Meier e log-rank. Todos os valores de p foram bicaudados. Foram avaliados os dados de 731 pacientes (205 TMO auto e 526 TMO alo). A mediana de sobrevida global dos pacientes submetidos ao TMO auto foi superior à dos submetidos ao TMO alo (1.035 vs 466 dias, p=0,0012). A origem das células-tronco (OCT) no TMO alo em 73% dos pacientes foi de medula óssea (CTMO), em 23% de sangue periférico (CTSP) e em 4% de cordão umbilical. No TMO auto, a OCT foi 63% de CTSP, 22% CTMO e 15% de ambas as fontes. A OCT não teve impacto na sobrevida global (SG). Não houve diferença na SG também entre os pacientes segundo a classificação FAB no TMO alo, mas os pacientes com LMA M3 com o TMO auto tiveram SG longa. Como esperado, a principal causa de óbito entre os pacientes do TMO auto foi relacionada à recidiva de doença (60%), enquanto no TMO alo as principais causas foram a doença enxerto versus hospedeiro e infecções (38%). Em ambos os grupos foi observada SG mais longa nos pacientes tratados em primeira remissão completa (1RC) quando comparados aos de segunda remissão (2RC) e outras fases (p<0,0001), tendo sido observado SG mais longa nos pacientes com LMA de novo quando comparados aos de LMA secundária. No TMO alo a SG foi mais longa com doadores aparentados (538 versus 93 dias p=0,001). A SG foi mais curta nos pacientes que utilizaram irradiação corpórea total no regime de condicionamento (p=0,0001). No TMO alo foram observados mais pacientes com doença avançada (60%) enquanto no grupo de TMO auto 24% eram da morfologia M3, o que pode explicar a diferença de SG entre os grupos. O resultado do estudo está em concordância com os dados do IBMTR. Considerando a natureza do estudo, retrospectivo e multicêntrico, os resultados devem ser analisados com cautela.Data from the International Bone Marrow Transplant Registry (IBMTR) contribute for the improvement of Bone Marrow Transplant (BMT) worldwide. We studied the Brazilian experience in BMT for AML to compare this with international data. We performed a retrospective study by sending questionnaires to 16 BMT centers regarding clinical and treatment variables. Statistical analyses concerning autologous BMT (autoBMT) and allogeneic BMT (alloBMT) were performed using the Kaplan-Meier method and the log-rank test. All p-values were two-tailed. We collected data from 731 patients (205 autoBMT and 526 alloBMT). Median overall survival (OS) for autoBMT patients was longer than alloBMT patients (1035 vs. 466 days, p=0.0012). AlloBMT stem cell source (SCS): 73% bone marrow stem cell (BMSC), 23% peripheral blood stem cells (PBSC) and 4% umbilical cord blood. Among the autoBMT patients, the SCS was 63% PBSC, 22% BMSC and 15% both. The SCS did not impact on OS. There was no difference in OS between different FAB classifications in the alloBMT group, but in the autoBMT the M3 patients had longer survival. As expected, the main cause of mortality among autoBMT patients was related to disease relapse (60%), while in the alloBMT, to infection (38%). In both groups we found longer OS in first complete remission (1CR) compared to second (2CR) and other (p<0.0001), and longer OS in de novo AML than in secondary. In the alloBMT group we found more patients with advanced disease (60%), while in the autoBMT group, we found more M3 patients (24%), which could explain the difference in OS. Most of our results are in accordance with IBMTR data. One should consider the fact that this is a retrospective study and our findings should be analysed with caution
Retrospective study of stem cell transplantation for acute myeloid leukemia (AML) : the Brazilian experience
Dados do Registro Internacional de Transplante de Medula Óssea, International Bone Marrow Transplant Registry (IBMTR) contribuem para o progresso do transplante de medula óssea (TMO) em todo o mundo. Neste artigo relatamos a experiência brasileira em leucemia mielóide aguda e comparamos os resultados do TMO com os dados internacionais. Foi realizado um estudo retrospectivo com dados de tratamento de LMA com o TMO de 16 instituições brasileiras. A análise estatística dos transplantes da modalidade autogênica (TMO auto) e alogênica (TMO alo) foi realizada com o método de Kaplan-Meier e log-rank. Todos os valores de p foram bicaudados. Foram avaliados os dados de 731 pacientes (205 TMO auto e 526 TMO alo). A mediana de sobrevida global dos pacientes submetidos ao TMO auto foi superior à dos submetidos ao TMO alo (1.035 vs 466 dias, p=0,0012). A origem das células-tronco (OCT) no TMO alo em 73% dos pacientes foi de medula óssea (CTMO), em 23% de sangue periférico (CTSP) e em 4% de cordão umbilical. No TMO auto, a OCT foi 63% de CTSP, 22% CTMO e 15% de ambas as fontes. A OCT não teve impacto na sobrevida global (SG). Não houve diferença na SG também entre os pacientes segundo a classificação FAB no TMO alo, mas os pacientes com LMA M3 com o TMO auto tiveram SG longa. Como esperado, a principal causa de óbito entre os pacientes do TMO auto foi relacionada à recidiva de doença (60%), enquanto no TMO alo as principais causas foram a doença enxerto versus hospedeiro e infecções (38%). Em ambos os grupos foi observada SG mais longa nos pacientes tratados em primeira remissão completa (1RC) quando comparados aos de segunda remissão (2RC) e outras fases (p<0,0001), tendo sido observado SG mais longa nos pacientes com LMA de novo quando comparados aos de LMA secundária. No TMO alo a SG foi mais longa com doadores aparentados (538 versus 93 dias p=0,001). A SG foi mais curta nos pacientes que utilizaram irradiação corpórea total no regime de condicionamento (p=0,0001). No TMO alo foram observados mais pacientes com doença avançada (60%) enquanto no grupo de TMO auto 24% eram da morfologia M3, o que pode explicar a diferença de SG entre os grupos. O resultado do estudo está em concordância com os dados do IBMTR. Considerando a natureza do estudo, retrospectivo e multicêntrico, os resultados devem ser analisados com cautela.Data from the International Bone Marrow Transplant Registry (IBMTR) contribute for the improvement of Bone Marrow Transplant (BMT) worldwide. We studied the Brazilian experience in BMT for AML to compare this with international data. We performed a retrospective study by sending questionnaires to 16 BMT centers regarding clinical and treatment variables. Statistical analyses concerning autologous BMT (autoBMT) and allogeneic BMT (alloBMT) were performed using the Kaplan-Meier method and the log-rank test. All p-values were two-tailed. We collected data from 731 patients (205 autoBMT and 526 alloBMT). Median overall survival (OS) for autoBMT patients was longer than alloBMT patients (1035 vs. 466 days, p=0.0012). AlloBMT stem cell source (SCS): 73% bone marrow stem cell (BMSC), 23% peripheral blood stem cells (PBSC) and 4% umbilical cord blood. Among the autoBMT patients, the SCS was 63% PBSC, 22% BMSC and 15% both. The SCS did not impact on OS. There was no difference in OS between different FAB classifications in the alloBMT group, but in the autoBMT the M3 patients had longer survival. As expected, the main cause of mortality among autoBMT patients was related to disease relapse (60%), while in the alloBMT, to infection (38%). In both groups we found longer OS in first complete remission (1CR) compared to second (2CR) and other (p<0.0001), and longer OS in de novo AML than in secondary. In the alloBMT group we found more patients with advanced disease (60%), while in the autoBMT group, we found more M3 patients (24%), which could explain the difference in OS. Most of our results are in accordance with IBMTR data. One should consider the fact that this is a retrospective study and our findings should be analysed with caution
Núcleos de Ensino da Unesp: artigos 2010: volume 4: as disciplinas escolares, os temas transversais e o processo de educação
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP
Ticagrelor in patients with diabetes and stable coronary artery disease with a history of previous percutaneous coronary intervention (THEMIS-PCI) : a phase 3, placebo-controlled, randomised trial
Background:
Patients with stable coronary artery disease and diabetes with previous percutaneous coronary intervention (PCI), particularly those with previous stenting, are at high risk of ischaemic events. These patients are generally treated with aspirin. In this trial, we aimed to investigate if these patients would benefit from treatment with aspirin plus ticagrelor.
Methods:
The Effect of Ticagrelor on Health Outcomes in diabEtes Mellitus patients Intervention Study (THEMIS) was a phase 3 randomised, double-blinded, placebo-controlled trial, done in 1315 sites in 42 countries. Patients were eligible if 50 years or older, with type 2 diabetes, receiving anti-hyperglycaemic drugs for at least 6 months, with stable coronary artery disease, and one of three other mutually non-exclusive criteria: a history of previous PCI or of coronary artery bypass grafting, or documentation of angiographic stenosis of 50% or more in at least one coronary artery. Eligible patients were randomly assigned (1:1) to either ticagrelor or placebo, by use of an interactive voice-response or web-response system. The THEMIS-PCI trial comprised a prespecified subgroup of patients with previous PCI. The primary efficacy outcome was a composite of cardiovascular death, myocardial infarction, or stroke (measured in the intention-to-treat population).
Findings:
Between Feb 17, 2014, and May 24, 2016, 11 154 patients (58% of the overall THEMIS trial) with a history of previous PCI were enrolled in the THEMIS-PCI trial. Median follow-up was 3·3 years (IQR 2·8–3·8). In the previous PCI group, fewer patients receiving ticagrelor had a primary efficacy outcome event than in the placebo group (404 [7·3%] of 5558 vs 480 [8·6%] of 5596; HR 0·85 [95% CI 0·74–0·97], p=0·013). The same effect was not observed in patients without PCI (p=0·76, p interaction=0·16). The proportion of patients with cardiovascular death was similar in both treatment groups (174 [3·1%] with ticagrelor vs 183 (3·3%) with placebo; HR 0·96 [95% CI 0·78–1·18], p=0·68), as well as all-cause death (282 [5·1%] vs 323 [5·8%]; 0·88 [0·75–1·03], p=0·11). TIMI major bleeding occurred in 111 (2·0%) of 5536 patients receiving ticagrelor and 62 (1·1%) of 5564 patients receiving placebo (HR 2·03 [95% CI 1·48–2·76], p<0·0001), and fatal bleeding in 6 (0·1%) of 5536 patients with ticagrelor and 6 (0·1%) of 5564 with placebo (1·13 [0·36–3·50], p=0·83). Intracranial haemorrhage occurred in 33 (0·6%) and 31 (0·6%) patients (1·21 [0·74–1·97], p=0·45). Ticagrelor improved net clinical benefit: 519/5558 (9·3%) versus 617/5596 (11·0%), HR=0·85, 95% CI 0·75–0·95, p=0·005, in contrast to patients without PCI where it did not, p interaction=0·012. Benefit was present irrespective of time from most recent PCI.
Interpretation:
In patients with diabetes, stable coronary artery disease, and previous PCI, ticagrelor added to aspirin reduced cardiovascular death, myocardial infarction, and stroke, although with increased major bleeding. In that large, easily identified population, ticagrelor provided a favourable net clinical benefit (more than in patients without history of PCI). This effect shows that long-term therapy with ticagrelor in addition to aspirin should be considered in patients with diabetes and a history of PCI who have tolerated antiplatelet therapy, have high ischaemic risk, and low bleeding risk