A new phenylpropanoid derivative, named euploic acid (1), was isolated from Euploca procumbens (Mill.) Diane & Hilger, Boraginaceae, along with lithospermic acid B (2), lithospermic acid (3), 9’’-methyl lithospermate (4), and luteolin-7-O-glucoside (5). Compound structures were determined by mass spectrometry (MS), nuclear magnetic resonance (NMR) analysis and comparison with published data. Absolute configuration of 1 was established via electronic circular dichroism (ECD). Anti-inflammatory potential of euploic acid (1) was assessed by measuring its inhibition of cytokine and nitric oxide production in stimulated J774 macrophages. Compound 1 significantly reduced pro-inflammatory mediator production and release by stimulated macrophages at non-cytotoxic concentrations, comparable to the efficacy of dexamethasone. Our findings demonstrate the potential of euploic acid (1) as an effective anti-inflammatory agent. This study contributes to the structural elucidation of a new phenylpropanoid derivative and highlights its promising anti-inflammatory activity in the treatment of inflammatory disorders. 1, , Mill. Mill (Mill. Hilger Boraginaceae 2, 2 (2) 3, 3 (3) 9methyl methyl 9 4, 4 (4) luteolin7Oglucoside luteolinOglucoside luteolin 7 O glucoside 5. 5 . (5) MS, MS (MS) NMR (NMR data ECD. ECD (ECD) Antiinflammatory Anti (1 J J77 proinflammatory pro noncytotoxic non cytotoxic concentrations dexamethasone antiinflammatory anti agent disorders (Mill (2 (3 (4 Oglucoside (5 (MS (ECD ( J7

RESUMO Objetivo: caracterizar o perfil dos atendimentos realizados numa Clinica Escola de Fonoaudiologia conveniada à rede Sistema Único de Saúde (SUS), no ano de 2016. Métodos: estudo transversal cujas fontes de dados foram as fichas de triagem, altas e desligamentos, e os prontuários. Foram estudadas as variáveis sociodemográficas e clínicas, mensurando o tempo de espera e especialidade para atendimento e, nos casos de desligamento, o motivo. Resultados: foram acolhidas 107 pessoas na triagem, das quais 53,3% eram crianças, 58,9% do sexo masculino, 41,1% com queixas de Linguagem e 35.5% de Motricidade Orofacial. A média de tempo de espera para iniciar o tratamento foi de 6,6 meses. Do total de pessoas triadas, 80,3% começaram o tratamento, com maior ocorrência nas áreas de Motricidade Orofacial (39.1%) e Linguagem (37,9 %). A alta fonoaudiológica foi obtida em 28,6% dos casos. Dentre as 37 pessoas que foram desligadas do tratamento, o principal motivo foi abandono ou falta (71,4%). Conclusão: evidenciou-se maior frequência de crianças, do sexo masculino, com maiores demandas para as áreas de Linguagem e Motricidade Orofacial. O tempo médio de espera para início do tratamento foi de 6,6 meses, sendo que 20% das pessoas triadas não o iniciaram. Destaca-se a alta frequência de desligamentos por falta.

ABSTRACT Objective: to characterize the care provided at a Speech Therapy School Clinic affiliated with the Brazilian public healthcare system, in 2016. Methods: a cross-sectional study was conducted with data from screening, discharge, discontinuation and medical records. Sociodemographic and clinical variables were assessed, by measuring waiting time and specialty. The reasons for treatment discontinuation were also investigated. The data were presented in tables and expressed as absolute and relative frequencies. Results: one hundred-seven individuals were screened, among whom 53.3% were children, 58.9% were males, 41.1% had language complaints and 35.5% had complaints regarding orofacial motor function. The mean waiting time to begin treatment was 6.6 months. Among all individuals screened, 80.3% began treatment. The treatment, more frequently, addressed orofacial motor function (39.1%) and language (37.9%). Discharge from treatment occurred in 28.6% of cases. Among the 37 individuals whose treatment was discontinued prior to completion, the main reason was abandonment/absences on the part of the patient (71.4%). Conclusion: the speech therapy care profile revealed a greater frequency of children, males and needs regarding language and orofacial motor function. The mean waiting time was 6.6 months and 20% of the individuals screened did not initiate treatment. A high frequency of discontinuation prior to completing treatment was found, due, mainly, to failure on the part of the patients to attend the sessions.

Resumo Este texto discute, a partir de metodologia proposta por pesquisadores canadenses, a sintonia temática entre as teses e dissertações defendidas no Programa de Pós-Graduação em Ciência da Informação da Universidade Federal de Minas Gerais e a produção internacional da área de Arquivologia, visando proporcionar mais uma ferramenta para identificar o grau de internacionalização desse programa.

Abstract The present study aims at identifying, based on the methodology proposed by Canadian scholars, the thematic alignment of Master’s and Doctorate programs offered by the Federal University of Minas Gerais (UFMG) Graduate Program in Information Science (PPGCI) with international scientific production in the realm of Archival Science. Therefore, it is also intended to provide a tool for identification of the degree of internationalization of such Program and to point out shortcomings in the set of the issues investigated alongside new directions in alumni and scholars’ research.

Resumo Este artigo analisa a construção do conceito de memória institucional na Ciência da Informação e, em especial, discute a memória na Arquivologia e nas instituições arquivísticas públicas e privadas. Demonstra-se que o surgimento de Centros de Memória no Brasil, na década de 1970, está associado à valorização da memória institucional, que se tornou, então, vital para as organizações. Diferente da memória organizacional, mais mutável e identificada com a eficácia, está ligada à legitimidade, à identidade e à responsabilidade histórica dos produtores nas instituições. Ela pode ser (re)construída por meio dos arquivos, ainda que não se confunda com eles.

Abstract The present paper analyzes the development of the concept of institutional memory in Information Science and discusses the issue of memory in Archival Science as well as public and private archival institutions. This study aimed to demonstrate that the emergence of Memory Centers in Brazil over the 1970s is associated to the importance given to institutional memory which, in turn, became vital to organizations. Unlike constantly changing and efficacy-related organizational memory, institutional memory has to do with the historical responsibility of intitutional producers. It might be (re)constructed by means of archives.

RESUMO Objetivo: validar o protocolo de avaliação neurofuncional para Comunicação Alternativa e Ampliada. Métodos: o estudo foi realizado em quatro fases: construção do instrumento, revisão de literatura e validação clínica e avaliação do protocolo por especialistas na área a partir de um questionário interativo que circulou repetidas vezes por um grupo de especialistas até que a resposta da última rodada foi considerada de nível satisfatório de concordância, além disso, foram realizadas avaliações clínicas mediante aplicação do protocolo em crianças e adolescentes com deficiência motora em um ensaio clínico. Resultados: a análise estatística da aplicação do protocolo no setting terapêutico tem os índices Kappa para cada observador com média geral de 0,436 (concordância moderada), além do consenso entre especialistas na avaliação de conteúdo. Conclusão: a concordância entre os aplicadores e especialistas e a aplicação clínica seguindo o protocolo desenvolvido permitiu a escolha e implementação de um recurso de comunicação alternativa mais apropriado às características neuromusculares do paciente, proporcionando acesso de baixo custo, bem como permitiu identificar rapidamente as habilidades motoras que possibilitaram a intervenção fonoaudiológica.

ABSTRACT Objective: to validate the neurofunctional evaluation for Alternative and Augmented Communication protocol. Methods: the study was carried out in four steps: instrument construction, literature review, clinical validation and evaluation of the protocol by field experts, through an interactive questionnaire which was repeatedly applied, until the last set of responses was regarded as satisfactory. In addition, clinical evaluations were performed by applying the protocol in children and adolescents with motor impairment in a clinical trial. Results: statistical analysis of the protocol application in the therapeutic setting showed the Kappa indices for each observer with an overall mean of 0.436 (moderate agreement), besides the agreement among experts in content evaluation. Conclusion: agreement between the evaluators, specialists and the protocol clinical application results allowed choosing and implementing an alternative communication resource appropriate to the neuromuscular characteristics of the patient, providing a low cost access, as well as the quick identification of the motor skills that enabled the speech-language therapy.

Abstract Purpose: To compare the influence of two metallic implants in the diagnosis of periprosthetic infection using 99m technetium-labeled ceftizoxime. Methods: Twenty rats were randomly divided into four groups, which received sterile and contaminated titanium and stainless steel implants. After 3 weeks, scintilographic images were obtained using a gamma chamber. Radioactivity counts were obtained for the region of interest (ROI) on the operated and non-operated paws. Results: Groups A, B, and C showed homogenous distribution of the radiopharmaceutical. Hyper uptake was observed in the operated paw from group D. The ROI target count was higher in the two groups with stainless steel implants. Among the control groups, the count was higher in the stainless steel group. Furthermore, among the contaminated groups, the uptake was higher in the stainless steel group, with a significant difference. The target: non-target ratio was significantly lower in the control and contaminated groups with both titanium and stainless steel, but the comparison between control groups and contaminated groups was only significant in the former. The cpm/g observed after a decay of 48h showed statistically significant differences between groups. Conclusion: Different biomaterials used in implants have an influence on the results of scintigraphy with 99mTc-CFT.

Abstract Approximately 5-10% of breast cancers are caused by germline mutations in high penetrance predisposition genes. Among these, BRCA1 and BRCA2, which are associated with the Hereditary Breast and Ovarian Cancer (HBOC) syndrome, are the most frequently affected genes. Recent studies confirm that gene rearrangements, especially in BRCA1, are responsible for a significant proportion of mutations in certain populations. In this study we determined the prevalence of BRCA rearrangements in 145 unrelated Brazilian individuals at risk for HBOC syndrome who had not been previously tested for BRCA mutations. Using Multiplex Ligation-dependent Probe Amplification (MLPA) and a specific PCR-based protocol to identify a Portuguese founder BRCA2 mutation, we identified two (1,4%) individuals with germline BRCA1 rearrangements (c.547+240_5193+178del and c.4675+467_5075-990del) and three probands with the c.156_157insAlu founder BRCA2 rearrangement. Furthermore, two families with false positive MLPA results were shown to carry a deleterious point mutation at the probe binding site. This study comprises the largest Brazilian series of HBOC families tested for BRCA1 and BRCA2 rearrangements to date and includes patients from three regions of the country. The overall observed rearrangement frequency of 3.44% indicates that rearrangements are relatively uncommon in the admixed population of Brazil.

ResumenEl suelo es un sistema biológico complejo, que desempeña un papel fundamental en las plantas y los animales, especialmente en los bosques secos como la Caatinga. Los hongos del suelo, tales como Aspergillus y Penicillium, pueden ser utilizados como bioindicadores para la conservación de la biodiversidad. El objetivo de este estudio fue aislar e identificar las especies de Aspergillus y Penicillium del suelo, en los municipios de Ibimirim y Tupanatinga en el Parque Nacional Catimbau. Cinco colecciones se llevaron a cabo en cada área durante la estación seca de 2012, un total de 25 muestras de suelos por área. Los hongos fueron aislados mediante la suspensión en agua destilada estéril y se sembraron en medio de cultivo Agar Sabouraud más Cloranfenicol y Rosa de Bengala, y también en el medio Agar Dicloran Glicerol. Los aislamientos fueron identificados en el Laboratorio de Colección de Hongos y se confirmaron por secuenciación del espaciador transcrito interno de ADN. Un total de 42 especies fueron identificadas, 22 de ellas pertenecientes al género Aspergillus y 20 al género Penicillium. Los aislamientos de Penicillium mostraron una distribución uniforme en Tupanatinga con índices de uniformidad entre 0.92 y 0.88 en Ibimirim. Entre los aislamientos de Aspergillus el valor encontrado en Tupanatinga (0.85) fue muy similar al encontrado en Ibimirim (0.86). Se observó una gran diversidad y bajo predominio de hongos en las muestras de suelo. Estos resultados contribuyen a la estimación de la diversidad de hongos en ambientes secos, especialmente en la Caatinga, donde la diversidad es decreciente en los suelos que han sufrido alteraciones.

Abstract Soil is a complex biological system that plays a key role for plants and animals, especially in dry forests such as the Caatinga.Fungi from soils, such as Aspergillus and Penicillium, can be used as bioindicators for biodiversity conservation. The aim of this study was to isolate and identify species of Aspergillus and Penicillium in soil, from the municipalities of Tupanatinga and Ibimirim, with dry forests, in the Catimbau National Park. Five collections were performed in each area during the drought season of 2012, totaling 25 soil samples per area. Fungi were isolated by suspending soil samples in sterile distilled water and plating on Sabouraud Agar media plus Chloramphenicol and Rose Bengal, and Glycerol Dicloran Agar. Isolates were identified by morphological taxonomy in the Culture Collection Laboratory and confirmed by sequencing of the Internal Transcribed Spacer of rDNA. A total of 42 species were identified, of which 22 belong to the genus Aspergillus and 20 to Penicillium. Penicillium isolates showed uniform distribution from the collecting area in Tupanatinga, and the evenness indices found were 0.92 and 0.88 in Tupanatinga and Ibimirim, respectively. Among isolates of Aspergillus evenness, the value found in Tupanatinga (0.85) was very close to that found in Ibimirim (0.86). High diversity and low dominance of fungi in soil samples was observed. These results contributed to the estimation of fungal diversity in dry environments of the Caatinga, where diversity is decreasing in soils that have undergone disturbance. Rev. Biol. Trop. 64 (1): 45-53. Epub 2016 March 01.

Abstract This study investigated the effects of the flavonoids 5-hydroxy-7,4′-dimethoxyflavone, casticin, and penduletin, isolated from Croton betulaster Müll Arg., Euphorbiaceae, a plant utilized in popular medicine in Brazil, on the growth and viability of the human glioblastoma cell line GL-15. We observed that 5-hydroxy-7,4′-dimethoxyflavone and casticin were not toxic to GL-15 cells after 24 h of exposure. However, casticin and penduletin inhibited the metabolic activity of glioblastoma cells significantly at a concentration of 10 µM (p ≤ 0.05). Flavonoids casticin and penduletin also induced a significant and dose-dependent growth inhibition beginning at 24 h of exposure, and the most potent flavonoid was penduletin. It was also observed that penduletin and casticin induced an enlargement of the cell body and a reduction of cellular processes, accompanied by changes in the pattern of expression of the cytoskeletal protein vimentin. Signs of apoptosis, such as the externalization of membrane phosphatidyl serine residues, nuclear condensation, and fragmentation, were also detected in cells treated with 50–100 µM flavonoids. Our results indicate that flavonoids extracted from C. betulaster present antitumoral activity to glioblastoma cells, with penduletin proving to be the most potent of the tested flavonoids. Our results also suggest that these molecules may be promising supplementary drugs for glioblastoma treatment.

PURPOSE:To evaluate whether scintigraphy with technetium-99m-labeled ceftizoxime (99mTc-CFT) can differentiate mediastinitis from aseptic inflammation associated with sternotomy.METHODS:Twenty female Wistar rats were randomly distributed into four groups: S (control) -partial upper median sternotomy with no treatment; SW (control) - sternotomy and treatment of sternal wounds with bone wax; SB - sternotomy and infection with Staphylococcus aureus; SWB - sternotomy with bone wax treatment and bacterial infection. Scintigraphy with 99mTc-CFT was performed eight days after surgery and images were collected 210 and 360 min after infusion of the radiopharmaceutical.RESULTS: No animals exhibited clinical signs of wound infection at the end of the experiment, although histological data verified acute inflammatory response in those experimentally infected with bacteria. Scintigraphic images revealed that tropism of 99mTc-CFT to infected sternums was greater than to their non-infected counterparts. Mean counts of radioactivity in bacteria-infected sternal regions (SB and SWB) were significantly higher (p = 0.0007) than those of the respective controls (S and SW).CONCLUSION:Scintigraphy with technetium-99m-labeled ceftizoxime is a method that can potentially detect infection post sternotomy and differentiate from aseptic inflammation in animals experimentally inoculated with S. aureus.

OBJETIVO: o objetivo desse estudo foi identificar a expressão do fator de crescimento de fibroblastos 2 (FGF-2) e do fator de crescimento vascular endotelial (VEGF) nos lados de tensão e pressão do ligamento periodontal de ratos, durante movimento ortodôntico experimental, em diferentes períodos de tempo. MÉTODOS: uma força ortodôntica de 0,5N foi aplicada no primeiro molar superior direito de 18 ratos Wistar machos, por períodos de 3 (grupo I), 7 (grupo II) e 14 dias (grupo III). O primeiro molar do lado oposto foi utilizado como controle. Os animais foram sacrificados nos períodos de tempo mencionados, sendo a arcada superior removida e fixada. Após a desmineralização, os espécimes foram processados histologicamente e embebidos em parafina. A expressão do FGF-2 e do VEGF foram estudadas por meio de análise imuno-histoquímica. RESULTADOS: o ligamento periodontal dos dentes submetidos à movimentação ortodôntica mostraram maior expressão tanto de FGF-2 quanto de VEGF, em todos os grupos experimentais, quando comparados com os dentes do lado controle (p < 0,05). Diferenças estatisticamente significativas entre os lados de tensão e pressão também foram encontradas nos dentes submetidos à movimentação ortodôntica. CONCLUSÕES: tanto o FGF-2 quanto o VEGF são expressos no tecido periodontal de ratos, e esses fatores de crescimento são aumentados quando forças ortodônticas são aplicadas, sugerindo que esses desempenham um papel importante na reorganização do periodonto durante o movimento ortodôntico.

OBJECTIVE: This article aimed at identifying the expression of fibroblast growth factor-2 (FGF-2) and vascular endothelial growth factor (VEGF) in the tension and pressure areas of rat periodontal ligament, in different periods of experimental orthodontic tooth movement. METHODS: An orthodontic force of 0.5 N was applied to the upper right first molar of 18 male Wistar rats for periods of 3 (group I), 7 (group II) and 14 days (group III). The counter-side first molar was used as a control. The animals were euthanized at the aforementioned time periods, and their maxillary bone was removed and fixed. After demineralization, the specimens were histologically processed and embedded in paraffin. FGF-2 and VEGF expressions were studied through immunohistochemistry and morphological analysis. RESULTS: The experimental side showed a higher expression of both FGF-2 and VEGF in all groups, when compared with the control side (P < 0.05). Statistically significant differences were also found between the tension and pressure areas in the experimental side. CONCLUSION: Both FGF-2 and VEGF are expressed in rat periodontal tissue. Additionally, these growth factors are upregulated when orthodontic forces are applied, thereby suggesting that they play an important role in changes that occur in periodontal tissue during orthodontic movement.

Os objetivos deste trabalho consistiram em descrever e ilustrar os aspectos morfoanatômicos de sementes e plântulas de Amburana cearensis, relacionando o desenvolvimento dos tecidos às fases de germinação das sementes, para verificar as mudanças que ocorreram durante esse processo. Os ensaios foram conduzidos no Laboratório de Estudos em Meio Ambiente da Universidade Católica de Salvador (LEMA/UCSal). O delineamento experimental utilizado foi o inteiramente casualizado com quatro repetições de 25 sementes por tratamento. A curva de embebição foi elaborada com base no peso fresco das sementes durante o processo de embebição, em períodos variando entre 0 e 318 h. Para análise morfológica das sementes e plântulas, ambas foram observadas a olho nu e ao microscópio estereoscópico, a fim de confeccionar a prancha. As secções anatômicas foram feitas com o auxílio do micrótomo rotativo, utilizando-se para tal as sementes durante as fases da germinação. Quanto à análise morfológica, as sementes são esternospermáticas e o embrião axial, sendo a germinação do tipo epígea e fanerocotiledonar. Quanto aos aspectos anatômicos, pôde-se verificar que as sementes de A. cearensis são bitegumentadas e exotestais e apresentam os cotilédones como principal tecido de reserva. O tegumento é composto por um estrato de macroesclereídes e por estratos de osteoesclereídes e possui compostos fenólicos, o que confere às sementes certo grau de dormência por impermeabilidade do tegumento, dificultando, assim, a absorção de água.

The present study aimed to describe and illustrate the morphology aspects of seeds and seedlings of Amburana cearensis linking the development of tissues to the stages of germination in order to verify the changes that occurred during this process. The tests were carried out at the Laboratory for Environmental Studies from the Catholic University of Salvador (LEMA / UCSal). The experimental design was a completely randomized with 4 replications of 25 seeds per treatment. The imbibition curve was based on seed fresh weight during imbibition at intervals varying between 0 and 318 hours. Naked eye and stereomicroscope observations were performed for the morphological analysis of seeds and seedlings and confection of botanical illustrations. The anatomical sections of seeds during the stages of germination were performed with a rotary microtome. A. cearensis seeds were classified as sternospermatics with an axial embryo and epígeal phanerocotylar germination. Seeds are bitegmic, exotestic and the cotyledons are the main reserve tissue. Seed coat is composed of a fairly rigid stratum of macrosclereides and strata of osteosclereides and phenolic compounds that confer a certain degree of seed dormancy due to tegument impermeability, hindering the absorption of water.

Although bone marrow is the main source, mesenchymal stem cells have already been isolated from various other tissues, such as the liver, pancreas, adipose tissue, peripheral blood and dental pulp. These plastic adherent cells are morphologically similar to fibroblasts and have a high proliferative potential. This special group of cells possesses two essential characteristics: self-renewal and differentiation, with appropriate stimuli, into various cell types. Mesenchymal stem cells are considered immunologically privileged, since they do not express costimulatory molecules, required for complete T cell activation, on their surface. Several studies have shown that these cells exert an immunosuppressive effect on cells from both innate and acquired immunity systems. Mesenchymal stem cells can regulate the immune response in vitro by inhibiting the maturation of dendritic cells, as well as by suppressing the proliferation and function of T and B lymphocytes and natural killer cells. These special properties of mesenchymal stem cells make them a promising strategy in the treatment of immune mediated disorders, such as graft-versus-host disease and autoimmune diseases, as well as in regenerative medicine. The understanding of immune regulation mechanisms of mesenchymal stem cells, and also those involved in the differentiation of these cells in various lineages is primordial for their successful and safe application in different areas of medicine.

Os macroinvertebrados bentônicos e nectônicos representam elementos importantes na estrutura e funcionamento dos ecossistemas aquáticos e sua distribuição é influenciada pela natureza química do substrato, composição da vegetação e profundidade da lâmina d'água. O conhecimento desta fauna contribui para a avaliação da qualidade da água e a elaboração de ações visando à conservação da biodiversidade. No presente estudo foram avaliadas diferentes medidas bióticas da comunidade de invertebrados da represa de Alagados, importante manancial da cidade de Ponta Grossa, no Paraná. Em cinco diferentes pontos de amostragem, foram coletados 18.473 exemplares de macroinvertebrados aquáticos ou semi-aquáticos, pertencentes a 46 táxons dos filos Annelida (Hirudinea e Oligochaeta), Mollusca (Gastropoda), Platyhelminthes (Turbellaria), Nematoda e Arthropoda (Arachnida, Crustacea e Insecta). Esta comunidade foi constituída predominantemente por organismos predadores (45,7% dos táxons amostrados), seguidos de coletores e/ou filtradores (23,9%); raspadores (15,2%), fragmentadores (13%) e detritívoros (2,2%). De modo geral, os índices de diversidade (H') e equitabilidade (J) foram significativamente baixos para os cinco locais investigados, com H' variando de 0,3301 a 1,0396. Quanto à tolerância dos organismos à poluição orgânica, alguns táxons mais sensíveis foram muito raros (Plecoptera) ou em baixa frequência (Trichoptera e Ephemeroptera). Entre os grupos mais resistentes a ambientes poluídos estão os Chironomidae e os Hirudinea, ambos bastante comuns nas amostras de Alagados. Este estudo reforça a importância da análise de bioindicadores na avaliação da qualidade de água para consumo humano e também para a conservação de ecossistemas, considerando que um programa de monitoramento ambiental deve integrar medidas físicas, químicas e biológicas.

Benthic and nektonic macroinvertebrates play an important role in the structure and function of aquatic ecosystems and their distribution is influenced by chemical features of the substrate, vegetation composition, and water depth. Knowledge on the fauna contributes to the assessment of water quality and development of biodiversity conservation activities. Different biotic factors affecting the invertebrate community were evaluated in the Alagados reservoir, the main water source of the city of Ponta Grossa, Paraná. In five different sampling points, 18,473 specimens of aquatic or semiaquatic macroinvertebrates were collected, belonging to 46 taxa of the phylla Annelida (Hirudinea and Oligochaeta), Mollusca (Gastropoda), Platyhelminthes (Turbellaria), Nematoda and Arthropoda (Arachnida, Crustacea and Insecta). This community was composed mainly of predators (45.7% of the taxa sampled), collectors and/or filterers (23.9%), scrapers (15.2%), shredders (13.0%) and detritivores (2.2%). Diversity (H') and evenness (J) indices were significantly low for the sites examined, and H' ranged between 0.3301 and 1.0396. Regarding tolerance of organisms to organic pollution, more sensitive taxa were very rare (Plecoptera) or unusual (Trichoptera and Ephemeroptera). Among the more resistant groups are Chironomidae and Hirudinea, both fairly common in the samples. This study corroborates the importance of bioindicators as a tool to assess water quality for human consumption and for the conservation of aquatic environments, integrating physical, chemical and biological factors in monitoring programs.