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1.
Braz. j. biol ; 83: e239642, 2023. tab, graf
Artigo em Inglês | LILACS-Express | LILACS, VETINDEX | ID: biblio-1278543

RESUMO

Abstract The knowledge of ant assemblages that occurs in Conservation Units in the Atlantic Forest domain is a priority, considering the number of endemic species and the impacts that this biome has been suffering. The aim of this study was to evaluate ant assemblages in the Turvo State Park, which is the largest conservation unit in the State of Rio Grande do Sul and presents an important role on biodiversity protection. Two samplings were conducted in 2019, one in the summer (January) and the other in the spring (November and December), at five sites 2 km apart, with pitfall traps (soil and canopy), sardine baits, glucose, beating net, sweeping net and manual collection. We sampled 121 species in the summer and 120 in the spring, totaling 163 ant species. A total of 78 species (47.8%) occurred in both sampling seasons. The richest genera in the study were Camponotus (S = 30), Pheidole (S = 23) and Linepithema (S = 11). Seventeen species were recorded for the first time for Rio Grande do Sul state. The results indicate that this is one of the most species-rich assemblages of ants ever surveyed in a conservation unit in southern Brazil. The study highlights the importance of Conservation Units as protected environments against habitat loss for ant biodiversity. The results of this study contribute to myrmecofauna knowledge and serve as a basis for environmental impact studies, management plans and conservation of Atlantic Forest remnants.


Resumo O conhecimento das assembleias de formigas que ocorrem em Unidades de Conservação no domínio Mata Atlântica é prioritário, considerando-se o número de espécies endêmicas e os impactos que este bioma vem sofrendo. O objetivo desse trabalho foi caracterizar a assembleia de formigas que ocorre no Parque Estadual do Turvo, a maior unidade de conservação do Rio Grande do Sul que se destaca pelo seu papel na proteção da biodiversidade da Mata Atlântica austral. Foram realizadas duas amostragens no ano de 2019, uma no verão (janeiro) e a outra na primavera (novembro e dezembro), em cinco pontos distantes 2 km entre si, com armadilhas pitfall (solo e dossel), iscas de sardinha, iscas de glicose, guarda-chuva entomológico, rede de varredura e coleta manual. A riqueza amostrada no verão foi de 121 e na primavera de 120, totalizando 163 espécies. Ao todo, 78 espécies (47,8%) ocorreram concomitantemente nas duas amostragens. Os gêneros mais ricos foram Camponotus (S=30), Pheidole (S=23) e Linepithema (S=11). Dezessete espécies foram registradas pela primeira vez para o estado do Rio Grande do Sul. Os resultados se constituem em uma das mais ricas assembleias de formigas já inventariadas em uma unidade de conservação na região sul do Brasil. O estudo destaca a importância das Unidades de Conservação como ambientes protegidos contra a perda de habitat para a biodiversidade de formigas. Os resultados deste estudo contribuem para o conhecimento da mirmecofauna e servem como base para estudos de impacto ambiental, planos de manejo e conservação de remanescentes da Mata Atlântica.

2.
Braz J Biol ; 83: e239642, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34133487

RESUMO

The knowledge of ant assemblages that occurs in Conservation Units in the Atlantic Forest domain is a priority, considering the number of endemic species and the impacts that this biome has been suffering. The aim of this study was to evaluate ant assemblages in the Turvo State Park, which is the largest conservation unit in the State of Rio Grande do Sul and presents an important role on biodiversity protection. Two samplings were conducted in 2019, one in the summer (January) and the other in the spring (November and December), at five sites 2 km apart, with pitfall traps (soil and canopy), sardine baits, glucose, beating net, sweeping net and manual collection. We sampled 121 species in the summer and 120 in the spring, totaling 163 ant species. A total of 78 species (47.8%) occurred in both sampling seasons. The richest genera in the study were Camponotus (S = 30), Pheidole (S = 23) and Linepithema (S = 11). Seventeen species were recorded for the first time for Rio Grande do Sul state. The results indicate that this is one of the most species-rich assemblages of ants ever surveyed in a conservation unit in southern Brazil. The study highlights the importance of Conservation Units as protected environments against habitat loss for ant biodiversity. The results of this study contribute to myrmecofauna knowledge and serve as a basis for environmental impact studies, management plans and conservation of Atlantic Forest remnants.


Assuntos
Formigas , Animais , Biodiversidade , Brasil , Ecossistema , Estações do Ano
3.
Rev Neurol ; 65(1): 13-18, 2017 Jul 01.
Artigo em Espanhol, Inglês | MEDLINE | ID: mdl-28650062

RESUMO

INTRODUCTION: Cancer patients have increased stroke risk from direct and indirect malignancy effects. Intravenous thrombolysis with recombinant tissue plasminogen activator (rtPA) is standard medical treatment for acute ischemic stroke (AIS). AIM: To review rtPA use in AIS patients with active cancer. SUBJECTS AND METHODS: Retrospective observational case-control study evaluating patients with AIS and cancer admitted to our stroke unit between January/2010 and June/2015. RESULTS: Seven cases were identified (86% male; median age: 76), and 20 controls were included matched for age and Oxfordshire Community Stroke Project classification. 29% experienced direct procedure complications vs 30% within the control group, 14% suffered haemorrhagic transformation (vs 20%), one patient experienced serious systemic haemorrhage (case) and one patient experienced serious intracerebral haemorrhage (control). After three months' follow-up, 43% were independent compared with 25% controls, and 29% had died (vs 30%). Undetermined aetiology subtype (TOAST classification) was more frequent in cancer patients when compared to controls (71% vs 20%). CONCLUSION: Severe haemorrhagic complications, potentiated by rtPA, carry increased risk of morbidity and mortality. Nevertheless, selected cancer patients with AIS may benefit from rtPA treatment. Active cancer should not be considered an absolute contraindication to rtPA use. Risk of complications and life expectancy should be assessed when making this decision.


Assuntos
Isquemia Encefálica/tratamento farmacológico , Acidente Vascular Cerebral/tratamento farmacológico , Ativador de Plasminogênio Tecidual/uso terapêutico , Idoso , Idoso de 80 Anos ou mais , Isquemia Encefálica/complicações , Estudos de Casos e Controles , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Neoplasias/complicações , Proteínas Recombinantes/uso terapêutico , Estudos Retrospectivos , Acidente Vascular Cerebral/complicações
4.
Rev Neurol ; 36(8): 701-6, 2003.
Artigo em Espanhol | MEDLINE | ID: mdl-12717644

RESUMO

BACKGROUND: Corpus callosum agenesis (CCA) is an uncommon entity, which can be diagnosed in utero. Uncertain prognosis makes prenatal counseling difficult. AIM. We have tried to establish a positive correlation between clinical history and imaging findings in patients with CCA. PATIENTS AND METHODS: We retrospectively reviewed clinical data and imaging findings of patients with callosal agenesis diagnosed at our institution between December 1995 and September 2002. RESULTS: Eight patients with CCA were found, five males and three females. Mean age at last clinical follow up was six years and six months, ranging from three months to 20 years. All diagnoses except for one were post natal. All patients underwent, at least, one magnetic resonance (MR) of the brain. Abnormal pregnancy was reported in three patients. Family history was unremarkable in all patients. Three patients were diagnosed with isolated CCA. One of these patients was asymptomatic at three months. Another had a slight language delay at seventeen months. The other patient had a mild developmental delay at five years. All other five patients had non isolated CCA and all were symptomatic, with variable clinical pictures: psicomotor developmental delay (4), epilepsy (4), hemiparesis (1), ocular apraxia (1), macrocephaly (2). CONCLUSION: Non isolated CCA is likely to have a worse prognosis. This may be of significant value in prenatal counseling.


Assuntos
Agenesia do Corpo Caloso , Malformações do Sistema Nervoso/diagnóstico , Adolescente , Adulto , Encéfalo/patologia , Criança , Pré-Escolar , Corpo Caloso/patologia , Feminino , Humanos , Lactente , Imageamento por Ressonância Magnética , Masculino , Malformações do Sistema Nervoso/epidemiologia , Malformações do Sistema Nervoso/patologia , Gravidez , Diagnóstico Pré-Natal , Estudos Retrospectivos , Estatística como Assunto , Ultrassonografia Pré-Natal
5.
Rev. neurol. (Ed. impr.) ; 36(8): 701-706, 16 abr., 2003. ilus, tab
Artigo em Es | IBECS | ID: ibc-27571

RESUMO

Introducción. La agenesia del cuerpo calloso (ACC) es una enfermedad rara, susceptible de diagnosticarse en el útero, de pronóstico variable,lo que dificulta el consejo prenatal. Objetivos. El objetivo del estudio es evaluar la relación eventual entre los datos clínicos y los descubrimientos imaginológicos en pacientes con ACC. Pacientes y métodos. Se realizó el estudio retrospectivo de las historias clínicas de los pacientes con ACC diagnosticados en el Hospital Garcia de Orta entre diciembre de 1995 y septiembre del 2002. Resultados. Se encontraron ocho pacientes con ACC, cinco de sexo masculino y tres de femenino. La edad media en el momento de realizarse la última observación clínica fue de 6 años y 6 meses, y varió entre los 3 meses y los 20 años. El diagnóstico fue posnatal en siete pacientes y prenatal en un paciente; este diagnóstico incluyó, en todos los casos, un estudio por resonancia magnética (RM). Los antecedentes gestacionales se consideraron relevantes en tres de los casos. Los antecedentes familiares se consideraron irrelevantes en todos los pacientes. La ACC se consideró aislada en tres pacientes. Uno de ellos era asintomático a los 3 meses, otro presentaba un leve retraso en el lenguaje a los 17 meses y el otro, un leve retraso en el desarrollo psicomotor (ADPM) a los 5 años. En los otros cinco pacientes, la ACC se consideró no aislada. Estos pacientes eran todos sintomáticos y presentaban cuadros clínicos variados: ADPM (4), epilepsia (4), hemiparesia (1), apraxiaocular (1), macrocefalia (2). Conclusiones. Los pacientes con ACC no aislada parecen tener un pronóstico clínico peor, lo cual puede ser relevante a la hora de dar un consejo prenatal (AU)


Background. Corpus callosum agenesis (CCA) is an uncommon entity, which can be diagnosed in utero. Uncertain prognosis makes prenatal counseling difficult. Aim. We have tried to establish a positive correlation between clinical history and imaging findings in patients with CCA. Patients and methods. We retrospectively reviewed clinical data and imaging findings of patients with callosal agenesis diagnosed at our institution between December 1995 and September 2002. Results. Eight patients with CCA were found, five males and three females. Mean age at last clinical follow-up was six years and six months, ranging from three months to 20 years. All diagnoses except for one were post-natal. All patients underwent, at least, one magnetic resonance (MR) of the brain. Abnormal pregnancy was reported in three patients. Family history was unremarkable in all patients. Three patients were diagnosed with isolated CCA. One of these patients was asymptomatic at three months. Another had a slight language delay at seventeen months. The other patient had a mild developmental delay at five years. All other five patients had non-isolated CCA and all were symptomatic, with variable clinical pictures: psicomotor developmental delay (4), epilepsy (4), hemiparesis (1), ocular apraxia (1), macrocephaly (2). Conclusion. Non-isolated CCA is likely to have a worse prognosis. This may be of significant value in prenatal counseling (AU)


Assuntos
Gravidez , Pré-Escolar , Criança , Adulto , Adolescente , Idoso , Masculino , Lactente , Feminino , Humanos , Hospitais , Fatores de Risco , Espanha , Fatores Sexuais , Estatística , Modelos Logísticos , Ultrassonografia Pré-Natal , Malformações do Sistema Nervoso , Estudos Retrospectivos , Diagnóstico Pré-Natal , Acidente Vascular Cerebral , Interpretação Estatística de Dados , Corpo Caloso , Imageamento por Ressonância Magnética , Telencéfalo
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