Oral soft-tissue sarcomas diagnosed in an oral pathology service: a 16year experience

Objective: This study analyzed the prevalence and clinic-pathological features of soft-tissue sarcomas diagnosed in a single-center of oral pathology from a School of Dentistry in Brazil. Materials and methods: All consecutive cases of intra-oral soft-tissue sarcomas diagnosed between January of 2002 and December of 2018 were retrieved from the files; patient data (sex, age and race) and characteristics of the lesions (site, size, clinical aspect and duration of injury) were collected. Results: Among a total of 62,255 biopsies diagnosed in the studied period, soft-tissue oral sarcomas comprised 76 cases (0.12%). Kaposi sarcoma, rhabdomyosarcoma, leiomyosarcoma encompassed 64.5% of the cases, and 53% of these were diagnosed as Kaposi Sarcoma. Male patients were more affected (59.2%) and white patients comprised 50%. In general, 39.4% of the patients were between 21-40yo. Conclusion: Soft-tissue sarcomas are rare in oral soft-tissue and in our pathology service, they comprised only 0.12% of all diseases diagnosed in the studied period. Kaposi sarcoma was the most frequent, followed by leiomyosarcoma and rhabdomyosarcoma. Thus, it is important for stomatologists and pathologists to be aware of their characteristics when examining oral mucosa, mainly their peculiarities regarding patient’s age, clinical appearance, and site of occurrence.Objetivo: Este estudo analisou a prevalência e as características clinico-patológicas de sarcomas de tecidos moles diagnosticados em um único centro de patologia oral de uma escola odontológica no Brasil. Materiais e métodos: Todos os casos consecutivos de sarcomas de tecido mole intraoral, diagnosticados entre janeiro de 2002 e dezembro de 2018, foram obtidos de arquivos; os dados dos pacientes (sexo, idade e raça) e as características da lesão (local, tamanho, aspecto clínico e duração da lesão) foram coletados. Resultado: De 62.255 biopsias diagnosticadas no período estudado, sarcoma oral de tecidos moles abrangia somente 76 dos casos (0,12%). Desses, sarcoma de Kaposi, rabdomiossarcoma e leiomiossarcoma correspondiam a  64,5%; dos quais, 53% foram diagnosticados como sarcoma de Kaposi. Pacientes masculinos foram os mais afetados (59,2%) e 50% dos pacientes eram brancos. Em geral, 39,4% dos pacientes tinham entre 21-40 anos de idade. Conclusão: Sarcomas de tecido mole são raros em tecido mole oral e, em nosso serviço de patolologia, totalizavam apenas 0,12% de todas as doenças diagnosticadas no período do estudo. Sarcoma de Kaposi foi o mais frequente, seguido por leiomiossarcoma e rabdomiossarcoma. Por isso é importante para estomatologistas e patologistas estarem atentos às características durante o exame da mucosa oral, principalmente às suas peculiaridades referentes à idade do paciente, a aparência clínica da lesão e o local da ocorrência

Micropropagação de Croton antisyphiliticus Mart.

Croton antisyphiliticus Mart. ex M. Arg., conhecido popularmente como pé-de-perdiz, é uma planta medicinal nativa do Cerrado, cuja raiz é utilizada na forma de decoctos para combater infecções do aparelho reprodutor masculino e feminino. A coleta da planta é realizada de forma extrativista e não há trabalhos a respeito da sua conservação. O objeto do trabalho foi estabelecer um protocolo de micropropagação de Croton antisyphiliticus. Foram avaliados o efeito de diferentes concentrações das citocininas, o tamanho do recipiente para o cultivo in vitro, o co-cultivo e a posição da gema em relação ao desenvolvimento dos explantes, bem como a influência do AIB no enraizamento in vitro e a aclimatização dos explantes. O melhor desenvolvimento in vitro foi obtido com explantes do tipo gema apical, co-cultivadas em meio MS suplementado com BAP (1µM), em frasco tipo pote. O enraizamento foi obtido em meio MS sem regulador vegetal e a aclimatização pode ser realizada em solo do cerrado com brotações sem a presença de raízes desenvolvidas in vitro.Croton antisyphiliticus Mart. ex M. Arg., popularly known as pé-de-perdiz, is a native medicinal plant of Cerrado, whose root is used in the form of decoctions against infections of the male and female reproductive. The collection of the plant is carried through of extractives form and there are no studies regarding its conservation. The aim of this study was to establish a micropropagation protocol of C. antisyphiliticus. The effect of different concentrations of cytokinins, the size of the container for the in vitro culture, co-cultivation and bud position in relation to the development of the explants, as well as the influence of AIB on in vitro rooting and acclimatization of explants were evaluated. The best development in vitro was obtained with apical explants co-cultivated on MS medium supplemented with BAP (1µM) in bottle type pot. Rooting was achieved on MS medium without growth regulators and acclimatization can be performed in Cerrado soil without the presence of shoots developed roots in vitro.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES

Cursos de geologia: expansão, interiorização e consolidação do ensino de geologia no brasil

A short time after the creation of the first Geology courses in Brazil (in 1957 with the pioneers in the University of São Paulo and in the Federal Universities of Ouro Preto, Pernambuco and Rio Grande do Sul, and then in the following year in the Federal Universities of Bahia and Rio de Janeiro), there arose other initiatives that spread almost twenty Geology courses throughout Brazil. In addition to expanding the Geology teaching in the South, Southeast and Northeast regions, these initiatives succeeded in allowing access to geological education for the population in the North and Central-west of Brazil. In the 1960s, the courses in the Federal University of Para in Belém (1964), University of Brasilia (1965) and São Paulo State University in Rio Claro (1969) were implanted. In the following decade, the courses in the Federal Rural University of Rio de Janeiro in Seropédica (1970), the Federal University of Ceará in Fortaleza (1970), the University of Rio dos Sinos in São Leopoldo (1973), the Federal University of Paraná in Curitiba (1973), the Federal University of Minas Gerais in Belo Horizonte (1973), the Federal University of Amazonas in Manaus (1976), the Federal University of Mato Grosso in Cuiabá (1976), the Federal University of Rio Grande do Norte in Natal (1976), and the State University of Rio de Janeiro in Rio de Janeiro (1977) were all created. At the close of the twentieth century, the course was implanted in the State University of Campinas (1998). Now, at the beginning of the twenty-first century, new Geology courses are being implanted, accentuating the movement inland of Geology teaching in Brazil. The Federal University of Pará began a new course in its campus in Marabá in the south-east of Pará and the Federal University of Bahia implanted a new course in its campus in Barreiras in the west of Bahia. Finally, the Federal Universities of Sergipe, Espírito Santo and Roraima commenced Geology courses in Aracaju, Alegre and Boa Vista, respectively. This chapter will present the synthesis of the Geology courses which, over the last decades of the twentieth century, contributed to the expansion of Geology teaching in the country, taking it to every region and giving opportunities to a large number of Brazilian citizens to realize their dreams and tread the paths of their professional vocation

NEOTROPICAL ALIEN MAMMALS: a data set of occurrence and abundance of alien mammals in the Neotropics

Biological invasion is one of the main threats to native biodiversity. For a species to become invasive, it must be voluntarily or involuntarily introduced by humans into a nonnative habitat. Mammals were among first taxa to be introduced worldwide for game, meat, and labor, yet the number of species introduced in the Neotropics remains unknown. In this data set, we make available occurrence and abundance data on mammal species that (1) transposed a geographical barrier and (2) were voluntarily or involuntarily introduced by humans into the Neotropics. Our data set is composed of 73,738 historical and current georeferenced records on alien mammal species of which around 96% correspond to occurrence data on 77 species belonging to eight orders and 26 families. Data cover 26 continental countries in the Neotropics, ranging from Mexico and its frontier regions (southern Florida and coastal-central Florida in the southeast United States) to Argentina, Paraguay, Chile, and Uruguay, and the 13 countries of Caribbean islands. Our data set also includes neotropical species (e.g., Callithrix sp., Myocastor coypus, Nasua nasua) considered alien in particular areas of Neotropics. The most numerous species in terms of records are from Bos sp. (n = 37,782), Sus scrofa (n = 6,730), and Canis familiaris (n = 10,084); 17 species were represented by only one record (e.g., Syncerus caffer, Cervus timorensis, Cervus unicolor, Canis latrans). Primates have the highest number of species in the data set (n = 20 species), partly because of uncertainties regarding taxonomic identification of the genera Callithrix, which includes the species Callithrix aurita, Callithrix flaviceps, Callithrix geoffroyi, Callithrix jacchus, Callithrix kuhlii, Callithrix penicillata, and their hybrids. This unique data set will be a valuable source of information on invasion risk assessments, biodiversity redistribution and conservation-related research. There are no copyright restrictions. Please cite this data paper when using the data in publications. We also request that researchers and teachers inform us on how they are using the data