Tetralogia de Fallot: cardiopatia congênita / Tetralogy of Fallot: congenital heart disease

O presente trabalho trata-se de uma revisão bibliográfica com intuito de abordar especificamente a cardiopatia congênita mais comum em neonatais, a tetralogia de Fallot, problemática advinda do período embrionário de divisão celular

A INFLUÊNCIA DA AUTOESTIMA NO DESEMPENHO ESCOLAR

O presente estudo tem como objetivo identificar os personagens formadores da autoestima infanto-juvenil e analisar o seu grau de influência no desempenho escolar, na percepção de alunos e professores. Foram comparados alunos de escolas públicas e privadas através de questionários de pesquisa e por meio da escala de Rosenberg (1979). Aplicou-se também um questionário aos professores. Participaram deste estudo 112 crianças e adolescentes, de dez a 17 anos, do 5.º ano do ensino fundamental, e 28 professores de anos variados. Os resultados mostraram, de um modo geral, pontuação mais elevada que a média. Houve diferença estatística significante na pontuação de alunos de escolas públicas e privadas. Porém, essas diferenças não foram significativas estatisticamente em relação ao gênero e à idade. A maior parte dos alunos considerou a opinião de pais, professores e amigos como um fator importante para a elevação da autoestima

THYROID CANCER: CLINICAL EVALUATION, ENDOCRINOLOGICAL MANIFESTATIONS AND SURGICAL MANAGEMENT

Thyroid cancer is more common in women and people over 40, but it can affect anyone. There are different types of thyroid cancer, the most common being differentiated carcinomas (papillary and follicular), which have a good prognosis and respond well to treatment. The clinical evaluation of thyroid cancer involves taking anamnesis, physical examination, measuring thyroid hormones and performing imaging tests and biopsy. The main symptom of thyroid cancer is the appearance of a nodule in the cervical region, which may be palpable or visible. The main surgical modalities are total thyroidectomy, which consists of complete removal of the thyroid gland; partial thyroidectomy or lobectomy, which consists of removing only part of the gland; and lymphadenectomy, which consists of removing lymph nodes affected by cancer. Objective: to synthesize the scientific evidence available on clinical assessment, endocrinological manifestations and surgical management in thyroid cancer. Methodology: based on the PRISMA checklist, the PubMed, Scielo and Web of Science databases were consulted to identify relevant studies published in the last 10 years. The descriptors used were: “thyroid cancer”, “thyroid neoplasm”, “clinical evaluation”, “surgical management” and “endocrinological manifestations”. Original studies in English or Portuguese that addressed the clinical, endocrinological or surgical aspects of thyroid cancer in humans were included. Studies that did not meet the inclusion criteria, were duplicates, had low methodological quality or did not have access to the full text were excluded. Results: 18 studies were selected, which revealed that thyroid cancer is a disease that presents different clinical, endocrinological and surgical aspects, depending on the type, stage and response to treatment. The studies analyzed provided evidence on diagnostic methods, indications and surgical techniques, the efficacy and safety of radioactive iodine therapy, and the role of suppressive hormone therapy in differentiated thyroid cancer. Conclusion: Thyroid cancer is a heterogeneous disease that requires a multidisciplinary approach for its diagnosis and treatment. The systematic review showed that there is consistent evidence on diagnostic methods, surgical modalities and radioactive iodine therapy in differentiated thyroid cancer. However, there are gaps in knowledge about the endocrinological manifestations of thyroid cancer and therapeutic alternatives for more complex or aggressive cases. Therefore, more studies are needed to clarify these aspects and improve the clinical management of patients with thyroid cancer.Thyroid cancer is more common in women and people over 40, but it can affect anyone. There are different types of thyroid cancer, the most common being differentiated carcinomas (papillary and follicular), which have a good prognosis and respond well to treatment. The clinical evaluation of thyroid cancer involves taking anamnesis, physical examination, measuring thyroid hormones and performing imaging tests and biopsy. The main symptom of thyroid cancer is the appearance of a nodule in the cervical region, which may be palpable or visible. The main surgical modalities are total thyroidectomy, which consists of complete removal of the thyroid gland; partial thyroidectomy or lobectomy, which consists of removing only part of the gland; and lymphadenectomy, which consists of removing lymph nodes affected by cancer. Objective: to synthesize the scientific evidence available on clinical assessment, endocrinological manifestations and surgical management in thyroid cancer. Methodology: based on the PRISMA checklist, the PubMed, Scielo and Web of Science databases were consulted to identify relevant studies published in the last 10 years. The descriptors used were: “thyroid cancer”, “thyroid neoplasm”, “clinical evaluation”, “surgical management” and “endocrinological manifestations”. Original studies in English or Portuguese that addressed the clinical, endocrinological or surgical aspects of thyroid cancer in humans were included. Studies that did not meet the inclusion criteria, were duplicates, had low methodological quality or did not have access to the full text were excluded. Results: 18 studies were selected, which revealed that thyroid cancer is a disease that presents different clinical, endocrinological and surgical aspects, depending on the type, stage and response to treatment. The studies analyzed provided evidence on diagnostic methods, indications and surgical techniques, the efficacy and safety of radioactive iodine therapy, and the role of suppressive hormone therapy in differentiated thyroid cancer. Conclusion: Thyroid cancer is a heterogeneous disease that requires a multidisciplinary approach for its diagnosis and treatment. The systematic review showed that there is consistent evidence on diagnostic methods, surgical modalities and radioactive iodine therapy in differentiated thyroid cancer. However, there are gaps in knowledge about the endocrinological manifestations of thyroid cancer and therapeutic alternatives for more complex or aggressive cases. Therefore, more studies are needed to clarify these aspects and improve the clinical management of patients with thyroid cancer

Nucleocapsid (N) Gene Mutations of SARS-CoV-2 Can Affect Real-Time RT-PCR Diagnostic and Impact False-Negative Results

The current COVID-19 pandemic demands massive testing by Real-time RT-PCR (Reverse Transcription Polymerase Chain Reaction), which is considered the gold standard diagnostic test for the detection of the SARS-CoV-2 virus. However, the virus continues to evolve with mutations that lead to phenotypic alterations as higher transmissibility, pathogenicity or vaccine evasion. Another big issue are mutations in the annealing sites of primers and probes of RT-PCR diagnostic kits leading to false-negative results. Therefore, here we identify mutations in the N (Nucleocapsid) gene that affects the use of the GeneFinder COVID-19 Plus RealAmp Kit. We sequenced SARS-CoV-2 genomes from 17 positive samples with no N gene detection but with RDRP (RNA-dependent RNA polymerase) and E (Envelope) genes detection, and observed a set of three different mutations affecting the N detection: a deletion of 18 nucleotides (Del28877-28894), a substitution of GGG to AAC (28881-28883) and a frameshift mutation caused by deletion (Del28877-28878). The last one cause a deletion of six AAs (amino acids) located in the central intrinsic disorder region at protein level. We also found this mutation in 99 of the 14,346 sequenced samples by the Sao Paulo state Network for Pandemic Alert of Emerging SARS-CoV-2 variants, demonstrating the circulation of the mutation in Sao Paulo, Brazil. Continuous monitoring and characterization of mutations affecting the annealing sites of primers and probes by genomic surveillance programs are necessary to maintain the effectiveness of the diagnosis of COVID-19

Correction: Lesbon et al. Nucleocapsid (N) Gene Mutations of SARS-CoV-2 Can Affect Real-Time RT-PCR Diagnostic and Impact False-Negative Results. <i>Viruses</i> 2021, <i>13</i>, 2474

The authors hereby request the inclusion of two authors (Olivia Teixeira and Maria Cristina Nonato) in the recently published article in Viruses entitled “Nucleocapsid (N) gene mutations of SARS-CoV-2 can affect real-time RT-PCR diagnostic and impact false-negative results” [...

Brazilian Flora 2020: Leveraging the power of a collaborative scientific network

International audienceThe shortage of reliable primary taxonomic data limits the description of biological taxa and the understanding of biodiversity patterns and processes, complicating biogeographical, ecological, and evolutionary studies. This deficit creates a significant taxonomic impediment to biodiversity research and conservation planning. The taxonomic impediment and the biodiversity crisis are widely recognized, highlighting the urgent need for reliable taxonomic data. Over the past decade, numerous countries worldwide have devoted considerable effort to Target 1 of the Global Strategy for Plant Conservation (GSPC), which called for the preparation of a working list of all known plant species by 2010 and an online world Flora by 2020. Brazil is a megadiverse country, home to more of the world's known plant species than any other country. Despite that, Flora Brasiliensis, concluded in 1906, was the last comprehensive treatment of the Brazilian flora. The lack of accurate estimates of the number of species of algae, fungi, and plants occurring in Brazil contributes to the prevailing taxonomic impediment and delays progress towards the GSPC targets. Over the past 12 years, a legion of taxonomists motivated to meet Target 1 of the GSPC, worked together to gather and integrate knowledge on the algal, plant, and fungal diversity of Brazil. Overall, a team of about 980 taxonomists joined efforts in a highly collaborative project that used cybertaxonomy to prepare an updated Flora of Brazil, showing the power of scientific collaboration to reach ambitious goals. This paper presents an overview of the Brazilian Flora 2020 and provides taxonomic and spatial updates on the algae, fungi, and plants found in one of the world's most biodiverse countries. We further identify collection gaps and summarize future goals that extend beyond 2020. Our results show that Brazil is home to 46,975 native species of algae, fungi, and plants, of which 19,669 are endemic to the country. The data compiled to date suggests that the Atlantic Rainforest might be the most diverse Brazilian domain for all plant groups except gymnosperms, which are most diverse in the Amazon. However, scientific knowledge of Brazilian diversity is still unequally distributed, with the Atlantic Rainforest and the Cerrado being the most intensively sampled and studied biomes in the country. In times of “scientific reductionism”, with botanical and mycological sciences suffering pervasive depreciation in recent decades, the first online Flora of Brazil 2020 significantly enhanced the quality and quantity of taxonomic data available for algae, fungi, and plants from Brazil. This project also made all the information freely available online, providing a firm foundation for future research and for the management, conservation, and sustainable use of the Brazilian funga and flora