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1.
Braz. j. biol ; 84: e253699, 2024. tab, graf
Article in English | MEDLINE, LILACS, VETINDEX | ID: biblio-1355864

Subject(s)
Animals , Songbirds , Biology
2.
Braz. j. biol ; 83: e247433, 2023. tab, graf
Article in English | MEDLINE, LILACS, VETINDEX | ID: biblio-1339336

ABSTRACT

Abstract The life cycle of stink bug, Glyphepomis dubia and the development of two egg parasitoids (Telenomus podisi and Trissolcus basalis) were studied at the Federal University of Maranhão, at 26 ± 2oC, relative humidity (RH) of 60 ± 10% and 12h photophase. Individuals used in the study were collected from seven rice fields located around the municipality of Arari, Maranhão, Brazil, and maintained in greenhouse and laboratory for the life cycle studies. From egg to adult, G. dubia took 35.2 days to complete the life cycle. The oviposition period was 37 days, with egg masses of about 12 eggs each and viability of 93.1%. Longevity was 53 and 65 days for females and males, respectively. The egg parasitoids Te. podisi and Tr. basalis parasitized and developed in G. dubia eggs; however, the biological characteristics of Tr. basalis were affected. Emergence of the parasitoids was higher for Te. podisi (83.5%) compared to the records for Tr. basalis (50.4%). Therefore, G. dubia may potentially achieve a pest status and Te. podisi is a promising biological control agent for G. dubia management in Brazil due to its higher longevity and better reproductive parameters.


Resumo O ciclo de vida do percevejo, Glyphepomis dubia e a biologia de dois parasitoides de ovos (Telenomus podisi e Trissolcus basalis) foram estudados na Universidade Federal do Maranhão, a 26 ± 2oC, umidade relativa (UR) de 60 ± 10% e fotofase de 12h. Sete indivíduos de G. dubia foram coletados em lavoura de arroz localizada no município de Arari, Maranhão, Brasil e mantidos em casa de vegetação e laboratório para estudos de ciclo de vida. Do ovo ao adulto, G. dubia levou 35.2 dias para completar o ciclo de vida. O período de oviposição foi de 37 dias com massas de ovos com cerca de 12 ovos/massa e viabilidade de 93.1%. A longevidade foi de 53 e 65 dias, respectivamente, para fêmeas e machos. Os parasitoides de ovos, Te. podisi e Tr. basalis parasitaram e se desenvolveram em ovos de G. dubia, no entanto as características biológicas de Tr. basalis foi afetada. A emergência dos parasitoides foi maior para Te. podisi (83.5%) em comparação com o registrado para Tr. basalis (50.4%). Portanto, G. dubia poderá apresentar potencial para atingir o status de praga e Te. podisi é um promissor agente de controle biológico para ser utilizado no manejo de G. dubia no Brasil, pois apresentou maior longevidade e os melhores parâmetros reprodutivos.


Subject(s)
Humans , Animals , Oryza , Wasps , Heteroptera , Hemiptera , Hymenoptera , Oviposition , Ovum , Biology
3.
Neotrop. ichthyol ; 20(1): e210162, 2022. tab, graf
Article in English | LILACS, VETINDEX | ID: biblio-1365200

ABSTRACT

The ichthyofauna of the La Plata hydrographic basin is divided into Upper and Lower Paraná River systems due to the geographic isolation of the Sete Quedas waterfalls, currently flooded by the lake of the Itaipu dam. In Parodontidae, pairs of species, or groups of cryptic species were described between these systems. Although genetic isolation and speciation have already been proposed in other species in the group, Parodon nasus has been maintained as a valid species and distributed throughout the La Plata river basin. In this perspective, specimens of P. nasus from four different sampling sites in the Upper and Lower Paraná River systems were compared regarding the karyotypes, molecular analyzes of population biology and species delimitation to investigate their genetic and population isolation in the La Plata river basin. Despite a geographic barrier and the immense geographic distance separating the specimens sampled from the Lower Paraná River system compared to those from the Upper Paraná River, the data obtained showed P. nasus as a unique taxon. Thus, unlike other species of Parodontidae that showed diversification when comparing the groups residing in the Lower versus Upper Paraná River, P. nasus showed a population structure and a karyotypic homogeneity.(AU)


A ictiofauna do sistema hidrográfico La Plata é dividida em alto e baixo rio Paraná devido ao isolamento geográfico dos Saltos das Sete Quedas há 22 milhões de anos, atualmente inundado pelo lago da represa da Usina de Itaipu. Em Parodontidae, espécies pares ou grupos de espécies crípticas foram descritos entre esses sistemas. Contudo, embora o isolamento genético e especiação já tenham sido propostos em outras espécies do grupo, Parodon nasus tem sido mantido como espécie válida e distribuída em toda a bacia do rio La Plata. Nessa perspectiva, exemplares de P. nasus de quatro diferentes pontos de amostragem nos sistemas do alto e baixo rio Paraná foram comparados quanto ao arranjo dos cariótipos, análises moleculares de biologia populacional e delimitação de espécies, afim de investigar seu isolamento genético e populacional na bacia do rio La Plata. Apesar da barreira geográfica e imensa distância geográfica separando os exemplares amostrados no sistema baixo rio Paraná em comparação àqueles do alto rio Paraná, os dados obtidos demonstraram P. nasus como único táxon válido. Dessa forma, diferentemente de outras espécies de Parodontidae que demonstraram diversificação quando comparados grupos pares residentes no baixo e alto rio Paraná, P. nasus demonstrou estruturação populacional e homogeneidade cariotípica.(AU)


Subject(s)
Animals , Biology , DNA, Ribosomal , Characiformes/genetics , Molecular Sequence Annotation , Karyotype
4.
Article in Spanish | LILACS, CUMED | ID: biblio-1289427

ABSTRACT

Introducción: La leucemia linfoide crónica es un trastorno linfoproliferativo caracterizado por la acumulación de linfocitos pequeños de aspecto maduro en sangre periférica, médula ósea y tejidos linfoides con un período de vida prolongado. Presenta una gran variabilidad clínica y genética. Objetivo: Describir los aspectos citogenéticos y moleculares de la leucemia linfoide crónica. Métodos: Se realizó revisión de la literatura en inglés y español, a través del sitio web PubMed y el motor de búsqueda Google académico, de artículos publicados en los últimos 5 años. Se hizo un análisis y resumen de la bibliografía revisada. Desarrollo: En la leucemia linfoide crónica están presentes alteraciones citogenéticas frecuentes como la deleción de los cromosomas 13q, 11q y 17p, así como la trisomía 12, que unido al conocimiento del estado mutacional del gen de la región variable de la cadena pesada de la inmunoglobulina, y otras mutaciones somáticas en diferentes genes, así como a variables clínicas y de laboratorio permiten la estratificación pronóstica de los pacientes. Conclusiones: El diagnóstico a través de los estudios citogenéticos convencionales estimulados con mitógenos, la hibridación in situ por fluorescencia y la secuenciación génica permite una mayor comprensión de la biología de la enfermedad, así como tomar decisiones terapéuticas más personalizadas(AU)


Introduction: Chronic B lymphoid leukemia is a lymphoproliferative disorder characterized by the accumulation of small, mature-looking lymphocytes in peripheral blood, bone marrow and lymphoid tissues with a long life span. It has great clinical and genetic variability. Objective: To describe the cytogenetic and molecular aspects of the disease. Methods: A review of the literature in English and in Spanish was carried out, in the PubMed website and using the search engine of Google Scholar, for articles published in the last five years. We performed analysis and summary of the reviewed bibliography. Development: In chronic lymphoid leukemia, frequent cytogenetic alterations are present such as deletion of chromosomes 13q, 11q and 17p, as well as trisomy 12, which together with the knowledge of the mutational status of the gene for the variable region of the immunoglobulin heavy chain and other somatic mutations in different genes, as well as clinical and laboratory variables allows prognostic stratification of patients. Conclusions: Diagnosis through conventional mitogen-stimulated cytogenetic studies, fluorescence in situ hybridization and gene sequencing allow a better understanding of the biology of the disease, as well as making more personalized therapeutic decisions(AU)


Subject(s)
Biology , Genetic Therapy , Leukemia, Lymphoid/genetics , In Situ Hybridization , Cytogenetics , Lymphoproliferative Disorders , Mutation
5.
Rev. medica electron ; 43(2): 3091-3102, mar.-abr. 2021. tab
Article in Spanish | LILACS, CUMED | ID: biblio-1251928

ABSTRACT

RESUMEN Introducción: el docente de Biología debe contribuir a la educación para la salud, y dentro de ella a la educación alimentaria y nutricional de los estudiantes, mediante el proceso de enseñanza-aprendizaje de los contenidos relacionados con la Biología. Objetivo: describir los conocimientos y comportamientos sobre educación alimentaria y nutricional que poseen los estudiantes de la carrera de Licenciatura en Educación, especialidad Biología, en la Universidad de Matanzas. Materiales y métodos: se realizó un estudio descriptivo de los conocimientos y comportamientos sobre educación alimentaria y nutricional en 21 estudiantes de la carrera de Licenciatura en Educación, especialidad Biología, de la Universidad de Matanzas, en enero de 2020. Los métodos teóricos empleados fueron el histórico-lógico, el analítico-sintético y el inductivo-deductivo. Como método empírico se utilizó la encuesta. Resultados: los estudiantes presentan insuficientes conocimientos sobre los nutrientes que aportan diversos alimentos, y desconocimiento sobre las biomoléculas y su importancia para el correcto funcionamiento del organismo. Muestran interés por el consumo de la comida denominada chatarra, y obvian la necesidad del consumo de vegetales, frutas y viandas hervidas. Conclusiones: los estudiantes encuestados presentaron limitados conocimientos sobre alimentación y nutrición como procesos inherentes a la vida humana, que determinan la educación alimentaria y nutricional como un factor básico para evitar enfermedades que repercuten en su salud, e impiden que puedan realizar su labor educativa como docentes de Biología, líderes de la promoción de salud en la escuela y la comunidad (AU).


ABSTRACT Introduction: the teacher who teaches Biology must make good use of the different curricular contents to contribute to health education and within it to food and nutritional education of students. Objective: to describe the knowledge and behaviors on food and nutrition education that students of the degree course of Education in Biology of the University of Matanzas have. Materials and methods: a descriptive study of the knowledge and behavior on food and nutritional education in 21 students of the degree course of Education in Biology of the University of Matanzas, in January 2020. The theoretical methods used were the historic-logical, the analytical-synthetic, and the inductive-deductive one. The survey was used as empiric method. Results: the students showed not enough knowledge on the nutrients provided by different foods, not knowing about biomolecules and their importance for the proper functioning of the body. They evidenced their preference for the consumption of the so called junk food, obviating the need of green vegetables, fruits and boiled vegetables. Conclusions: the surveyed students presented limited knowledge on food and nutrition as processes inherent to human life, which determine food and nutritional education as a basic factor to avoid diseases that affect their health. It is a constraint for carrying out an adequate educative work as Biology teachers and future leaders of health promotion at school and in the community (AU).


Subject(s)
Humans , Male , Female , Food and Nutrition Education , Educational Personnel/education , Teaching/standards , Biology/education , Biology/methods , Teacher Training/methods
6.
Frontiers of Medicine ; (4): 232-251, 2021.
Article in English | WPRIM | ID: wpr-880952

ABSTRACT

In recent years, studying the role of myeloid-derived suppressor cells (MDSCs) in many pathological inflammatory conditions has become a very active research area. Although the role of MDSCs in cancer is relatively well established, their role in non-cancerous pathological conditions remains in its infancy resulting in much confusion. Our objectives in this review are to address some recent advances in MDSC research in order to minimize such confusion and to provide an insight into their function in the context of other diseases. The following topics will be specifically focused upon: (1) definition and characterization of MDSCs; (2) whether all MDSC populations consist of immature cells; (3) technical issues in MDSC isolation, estimation and characterization; (4) the origin of MDSCs and their anatomical distribution in health and disease; (5) mediators of MDSC expansion and accumulation; (6) factors that determine the expansion of one MDSC population over the other; (7) the Yin and Yang roles of MDSCs. Moreover, the functions of MDSCs will be addressed throughout the text.


Subject(s)
Biology , Humans , Myeloid-Derived Suppressor Cells , Neoplasms
7.
J. appl. oral sci ; 29: e20200870, 2021. tab, graf
Article in English | LILACS | ID: biblio-1250190

ABSTRACT

Abstract Bio-C Pulpecto (Bio-CP) was recently developed as the first bioceramic root filling material for primary teeth. Objective To evaluate the physicochemical properties of radiopacity, setting time, pH, cytocompatibility and potential of Bio-CP to induce mineralisation, compared with (1) Calen thickened with zinc oxide (Calen-ZO), and (2) zinc oxide and eugenol (ZOE). Methodology Physicochemical properties were evaluated according to ISO 6876. Saos-2 (human osteoblast-like cell line) exposed to extracts of the materials were subjected to assays of methyl thiazolyl tetrazolium, neutral red, alkaline phosphatase (ALP) activity and mineralised nodule production. The results were analysed using one-way or two-way ANOVA and Tukey's or Bonferroni's post-tests (α=0.05). Results All the materials showed radiopacity higher than 3 mm Al. Bio-CP had lower pH than Calen-ZO, but higher pH than ZOE. Calen-ZO and Bio-CP did not set. The setting time for ZOE was 110 min. The cytocompatibility order was Calen-ZO > Bio-CP > ZOE (1:2, 1:4 dilutions) and Calen-ZO > Bio-CP = ZOE (1:12, 1:24 dilutions) and Calen-ZO = Bio-CP > ZOE (1:32 dilution). Bio-CP induced greater ALP activity at 7 days, and greater mineralised nodule production, compared to Calen-ZO (p<0.05). Conclusions Bio-CP showed adequate physicochemical properties, cytocompatibility and potential to induce mineralisation.


Subject(s)
Humans , Root Canal Filling Materials , Dental Pulp Cavity , Osteoblasts , Root Canal Obturation , Tooth, Deciduous , Zinc Oxide-Eugenol Cement , Biology
8.
Mem. Inst. Oswaldo Cruz ; 116: e200528, 2021. tab, graf
Article in English | LILACS | ID: biblio-1154881

ABSTRACT

Panstrongylus geniculatus (Latreille, 1811) is the triatomine with the largest geographic distribution in Latin America. It has been reported in 18 countries from southern Mexico to northern Argentina, including the Caribbean islands. Although most reports indicate that P. geniculatus has wild habitats, this species has intrusive habits regarding human dwellings mainly located in intermediate deforested areas. It is attracted by artificial light from urban and rural buildings, raising the risk of transmission of Trypanosoma cruzi. Despite the wide body of published information on P. geniculatus, many knowledge gaps exist about its biology and epidemiological potential. For this reason, we analysed the literature for P. geniculatus in Scopus, PubMed, Scielo, Google Scholar and the BibTriv3.0 databases to update existing knowledge and provide better information on its geographic distribution, life cycle, genetic diversity, evidence of intrusion and domiciliation, vector-related circulating discrete taxonomic units, possible role in oral T. cruzi transmission, and the effect of climate change on its biology and epidemiology.


Subject(s)
Humans , Animals , Panstrongylus/genetics , Panstrongylus/parasitology , Triatoma/parasitology , Trypanosoma cruzi/isolation & purification , Chagas Disease/transmission , Insect Vectors/parasitology , Panstrongylus/physiology , Phylogeny , Genetic Variation/genetics , Biology , Genes, Insect , Ecology , Genotype , Geography , Insect Vectors/genetics , Latin America
9.
Cad. Saúde Pública (Online) ; 37(8): e00352820, 2021.
Article in Portuguese | LILACS | ID: biblio-1285857

ABSTRACT

Durante o último quarto do século XX, a psicopatologia codificou um arco diversificado de fenômenos sociais sob a rubrica do traumatismo, notabilizando o estudo do trauma psicológico como área autônoma e progressivamente informada pelas pesquisas culturais e neurobiológicas. Nesse cenário, presenciamos a emergência do paradigma biocultural, perspectiva epistemológica que procura elucidar as trajetórias interativas pelas quais cultura e biologia consolidam, entre si, os seus efeitos recíprocos. Este artigo abordará as interseções entre o campo dos psicotraumatismo e as neurociências, tomando, como eixos de análise, a expansão da categoria do transtorno de estresse pós-traumático (TEPT), os pressupostos epistemológicos das pesquisas neurocomportamentais do estresse e do medo, e as limitações da tese da bidirecionalidade, preconizada pelas neurodisciplinas culturais contemporâneas. A elaboração de abordagens definitivamente integrativas pode auxiliar no desenvolvimento de modelos compreensivos capazes de conceber os saberes e as práticas ao nível da experiência humana, evitando interpretações reducionistas que submetem vivências culturais e subjetivas complexas ora aos imperativos do cérebro, ora aos códigos semiológicos do raciocínio patogênico.


Durante el último cuarto del siglo XX, la psicopatología codificó un arco diversificado de fenómenos sociales, bajo la rúbrica del traumatismo, poniendo en relevancia el estudio del trauma psicológico, como área autónoma, y progresivamente informada por las investigaciones culturales y neurobiológicas. En este escenario, presenciamos el surgimiento del paradigma biocultural, perspectiva epistemológica que procura elucidar las trayectorias interactivas por las cuales cultura y biología consolidan, entre sí, sus efectos recíprocos. Este artículo abordará las intersecciones entre el campo de los psicotraumatismos y las neurociencias, tomando, como ejes de análisis, la expansión de la categoría del trastorno de estrés postraumático (TEPT), los presupuestos epistemológicos de las investigaciones neurocomportamentales del estrés y del miedo, y las limitaciones de la tesis de la bidireccionalidad, preconizada por las neurodisciplinas culturales contemporáneas. La elaboración de abordajes definitivamente integradores pueden apoyar el desarrollo de modelos comprensivos, capaces de concebir los saberes y prácticas en el nivel de la experiencia humana, evitando interpretaciones reduccionistas que someten vivencias culturales y subjetivas complejas, bien sea a los imperativos del cerebro, bien sea a los códigos semiológicos del raciocinio patogénico.


In the last 25 years of the 20th century, psychopathology coded a diverse range of social phenomena under the heading of trauma, featuring the study of psychological trauma as an autonomous area progressively informed by cultural and neurobiological research. In this scenario, we witnessed the emergence of the biocultural paradigm, an epistemological perspective that seeks to elucidate the interactive trajectories by which culture and biology consolidate each other´s effects. This article will address the intersections between the field of psychological trauma and neurosciences, based on the analytical dimensions of expansion of the category of posttraumatic stress disorder (PTSD), the epistemological premises of neurobehavioral studies of stress and fear, and the limitations of the bidirectionality hypothesis advanced by contemporary cultural neurosciences. The elaboration of definitively integrative approaches can assist the development of comprehensive models capable of conceiving knowledges and practices at the level of human experience, avoiding reductionist interpretations that submit complex cultural and subjective experiences alternatingly to the imperatives of the brain and to semiologic codes of pathogenic reasoning.


Subject(s)
Humans , Stress Disorders, Post-Traumatic , Neurosciences , Biology , Brazil
10.
Acta amaz ; 50(4): 309-312, out. - dez. 2020.
Article in English | LILACS | ID: biblio-1146367

ABSTRACT

Monodelphis glirina é endêmica da Amazônia e aspectos dos seus hábitos de vida e história natural são pouco conhecidos. Dados sobre a espécie foram coletados no norte de Mato Grosso, Brasil, incluindo observações sobre seu comportamento e simpatria com congêneres. Durante 10 expedições e com um esforço de 3.680 baldes-dia, foram capturados 29 M. glirina, três M. sacie um M. emiliae. Adultos representaram 82,8% das capturas de M. glirina e a razão sexual foi três machos para cada fêmea. A captura de jovens e fêmeas lactantes foi sazonal, uma vez que ambos foram capturados apenas na estação chuvosa. Observamos três eventos de M. glirina predando roedores em pitfall traps, todos com o mesmo comportamento de alimentação. Também registramos um individuo escalando uma árvore durante a noite, incluindo um video. Nosso trabalho contribui para uma melhor compreensão da ecologia desse gênero altamente diversificado e ainda pouco conhecido. (AU)


Subject(s)
Biology , Amazonian Ecosystem , Monodelphis
11.
Int. j. morphol ; 38(6): 1751-1759, Dec. 2020. tab, graf
Article in Spanish | LILACS | ID: biblio-1134508

ABSTRACT

RESUMEN: Los textos escolares en Chile siguen siendo un recurso educativo ampliamente utilizado por los profesores/as, por lo tanto, son herramientas pedagógicas que deben contar con una correcta terminología, garantizando una comunicación eficiente y precisa. En este sentido, la Terminología Anatómica Internacional aborda la organización de nombres de estructuras humanas, sin embargo, se ha observado que aún existen problemas en la correcta denominación de estructuras, generando problemas de comunicación entre profesionales y estudiantes de ciencias. En esta investigación se analizaron los términos histológicos, embriológicos y anatómicos del sistema cardiovascular humano presentes en los libros de texto escolares de 7º a 12vo grado de Ciencias Naturales y Biología, impartidos por el Ministerio de Educación de Chile. El análisis fue realizado comparando los términos utilizados en los textos con los términos oficiales del Programa Federativo Internacional de Terminologías Anatómicas y del Comité Federativo Internacional en Terminología Anatómica. Los resultados indican que el 25 % de términos analizados presentan errores y de ellos un 100 % corresponden a sinonimias. Se concluye que persisten errores en la adecuada denominación de las estructuras del cuerpo humano en los textos escolares. Al respecto, se sugiere una serie de líneas de trabajo que deberán reunir a los profesores/as y especialistas como anatomistas y biólogos para corregir los errores existentes.


SUMMARY: School textbooks in Chile remain an educational resource widely used by teachers, therefore, they are pedagogical tools that must have a correct terminology, ensuring efficient and accurate communication. In this sense, The International Anatomical Terminology addresses the organization of names of human structures. However, it has been observed that there are still problems in the correct naming of structures, creating communication problems between professionals and science students. In this research, the histological, embryological, and anatomical terms of the human cardiovascular system present in school textbooks from 7th to 12th grade of Sciences and Biology, taught by the Chilean Ministry of Education, were analyzed. The analysis was carried out by comparing the terms used in the texts with the official terms of the Federative International Programme for Anatomical Terminology and International Federative Committee for Anatomical Terminology. The results indicate that 25 % of the terms analyzed have errors and of these 100 % correspond to synonyms. It is concluded that errors persist in the proper naming of the structures of the human body in school textbooks. In this regard, a series of lines of work are suggested, that should bring together teachers and specialists such as anatomists and biologists to correct existing errors.


Subject(s)
Humans , Textbooks as Topic , Cardiovascular System/anatomy & histology , Terminology as Topic , Natural Science Disciplines , Biology , Chile , Human Body
12.
Arq. Ciênc. Vet. Zool. UNIPAR (Online) ; 23(1, cont.): 1-7, 20200000.
Article in Portuguese | LILACS, VETINDEX | ID: biblio-1117757

ABSTRACT

Estudos sobre a alimentação de peixes são fundamentais para compreender as relações tróficas e estrutura de comunidades ícticas. A espécie em estudo Aequidens tetramerus pertence à família Cichlidae que detém mais de 450 espécies para os neotrópicos, sendo que destes, 287 habitam a América do Sul. Objetivou-se com este estudo compreender a dieta e padrão alimentar de A. tetramerus em lagos de várzea nos ambientes de macrófitas aquáticas da Reserva de Desenvolvimento Sustentável Mamirauá (RDSM), Estado do Amazonas. A análise da dieta foi feita a partir da averiguação do conteúdo estomacal de 59 indivíduos. Determinou-se o Grau de Repleção Estomacal (GRE), Frequência de Ocorrência (FO%), Frequência de Biomassa (FB%) e o Índice de Importância Alimentar (IAi %). Segundo o (GRE), 28 espécimes (39,4%) apresentaram estômagos vazios. A dieta de A. tetramerus foi composta por 12 itens alimentares diferentes. Entretanto, poucos foram predominantes com destaque para insetos (12,6% e 42,7%), em FO% e FB%, respectivamente. Pode-se inferir que A. tetramerus possui hábito carnívoro com tendência a insetivoria, pois quando realizado a combinação dos métodos, por meio da determinação do (IAi %) para verificar a importância das 12 categorias que compuseram a dieta, o item inseto também obteve o maior valor (IAi = 0,71%). Este fato pode estar relacionado ao próprio ambiente de macrófitas aquáticas, pois este é um habitat ideal para a reprodução e desenvolvimento de insetos.(AU)


Studies on the feeding habits of fish are key to understanding the trophic relationships and the structure of ictic communities. The species under study, Aequidens tetramerus, belongs to the Cichlidae family which has over 450 species for the neotropics, of which 287 inhabit South America. The aim of this study was to understand the diet and dietary patterns of A. tetramerus in floodplain lakes in the aquatic macrophyte environments of the Mamirauá Sustainable Development Reserve (RDSM) in the state of Amazonas. The diet was analyzed by investigating the stomach contents of 59 individuals. The degree of stomach repletion (DRS), frequency of occurrence (FO%), frequency of biomass (FB%), and dietary importance index (IAi%) were determined. According to DSR, 28 specimens (39.4%) had empty stomachs. The diet of A. tetramerus was composed of 12 different food items. However, only a few were predominant, with emphasis to insects (12.6% and 42.7% in FO% and FB%, respectively). It can be inferred that A. tetramerus has carnivorous habits with a tendency to be an insectivore, since when the combination of methods was performed, by determining the IAi% to verify the importance of the 12 categories that composed the diet, the insect category also presented the highest value (IAi = 0.71%). This fact may be related to the aquatic macrophyte environment itself, as this is an ideal habitat for the reproduction and development of insects.(AU)


Estudios sobre la alimentación de peces son fundamentales para comprender las relaciones tróficas y estructura de comunidades ícticas. La especie en estudio, Aequidens tetramerus, pertenece a la familia Cichlidae que posee más de 450 especies en neo trópicos, 287 de los cuales habitan en América del Sur. El objetivo de este estudio yace en la compresión de la dieta y el patrón alimentar del A. tetramerus en lagos de vega en los ambientes de macrófitas acuáticas de la Reserva de Desarrollo Sostenible de Mamirauá (RDSM), en el Estado de Amazonas. El análisis de la dieta se realizó investigando el contenido estomacal de 59 individuos. Se determinaron el Grado de Repleción Estomacal (GRE), Frecuencia de Ocurrencia (FO%), Frecuencia de Biomasa (FB%) y el Índice de Importancia Alimentar (IAi%). Según GRE, 28 muestras (39,4%) tenían estómagos vacíos. La dieta de A. tetramerus consistió en 12 alimentos diferentes. Sin embargo, pocos fueron predominantes, con énfasis en insectos (12.6% y 42.7%), en FO% y FB%, respectivamente. Se puede inferir que el A. tetramerus tiene un hábito carnívoro con tendencia insectívora, porque cuando se realiza la combinación de los métodos, determinando el (IAi%) para verificar la importancia de las 12 categorías que componían la dieta, el ítem insecto también obtuvo el valor más alto (IAi = 0.71%). Este hecho puede estar relacionado con el propio ambiente de macrófitas acuáticas, ya que este es un hábitat ideal para la reproducción y el desarrollo de insectos.(AU)


Subject(s)
Animals , Biology , Cichlids , Environment , Food
13.
Article in English | WPRIM | ID: wpr-787144

ABSTRACT

Autophagy is a highly conserved intracellular degradation and energy-recycling mechanism that contributes to the maintenance of cellular homeostasis. Extensive researches over the past decades have defined the role of autophagy innate immune cells. In this review, we describe the current state of knowledge regarding the role of autophagy in neutrophil biology and a picture of molecular mechanism underlying autophagy in neutrophils. Neutrophils are professional phagocytes that comprise the first line of defense against pathogen. Autophagy machineries are highly conserved in neutrophils. Autophagy is not only involved in generalized function of neutrophils such as differentiation in bone marrow but also plays crucial role effector functions of neutrophils such as granule formation, degranulation, neutrophil extracellular traps release, cytokine production, bactericidal activity and controlling inflammation. This review outlines the current understanding of autophagy in neutrophils and provides insight towards identification of novel therapeutics targeting autophagy in neutrophils.


Subject(s)
Autophagy , Biology , Bone Marrow , Extracellular Traps , Homeostasis , Inflammation , Neutrophils , Phagocytes
14.
Acta Physiologica Sinica ; (6): 683-689, 2020.
Article in Chinese | WPRIM | ID: wpr-878213

ABSTRACT

Here we perform a review on applications and funded projects at Division of Physiology and Integrative Biology in Department of Life Sciences sponsored by National Natural Science Foundation of China in the past ten years. Based on the research fields of applications and funded projects and the funding cost, we analyzed the sub-disciplines of the funded applications, key support areas, research frontiers and trends in the subjects of physiology and integrative biology, which gives us an insight into the future applications to optimize the layout of research areas in Division of Physiology and Integrative Biology.


Subject(s)
Biology , China , Foundations , Humans , Natural Science Disciplines
15.
Braz. arch. biol. technol ; 63: e20200249, 2020. tab, graf
Article in English | LILACS | ID: biblio-1132170

ABSTRACT

Abstract This article aimed to simulate the new method proposed by the Brazilian Coordination for the Improvement of Higher Education Personnel (Coordenação de Aperfeiçoamento de Pessoal de Nível Superior, CAPES) for the classification of Qualis 2017-2020 by tracing the path that led to the B3 stratification attributed to the journal Brazilian Archives of Biology and Technology (BABT). Data collection was based on the evaluation of articles published between 2017 and 2018 to obtain the Lattes curricula of the author(s). Other goals were to verify their participation in stricto sensu postgraduate programs recognized by CAPES; to identify the program's evaluation area according to CAPES; and to establish the association of authors/co-authors with their respective countries. Overall 199 articles were identified, with 897 authors/co-authors, 359 of which are associated with Brazilian institutions. A participation of at least one Brazilian author/co-author could be verified in 69 articles, out of which 60 had at least one professor affiliated to a stricto sensu postgraduate program recognized by CAPES. There was professors linked to 26 of the 49 CAPES evaluation areas, whereby the highest number of publications were Food Science and Agrarian Sciences I, both with 16 occurrences each. It was verified that the criteria established by the CAPES' guiding document were not adequately followed. It could be concluded that the journal BABT should have been classified in the stratum A2, with a possible oscillation between A1 and A4, so that its classification as a B3 publication is out of the range foreseen in CAPES' established criteria.


Subject(s)
Humans , Periodicals as Topic , Technology , Biology , Periodicals as Topic/statistics & numerical data
16.
Fractal rev. psicol ; 31(1): 11-15, jan.-abr. 2019.
Article in Portuguese | LILACS, INDEXPSI | ID: biblio-989822

ABSTRACT

Este artigo analisa a apropriação da teoria da recapitulação da filogênese pela ontogênese do biólogo Ernst Heinrich Philipp August Haeckel pelo psiquiatra suíço Carl Gustav Jung na formulação de seu projeto de psicologia, denominado Psicologia Analítica. Para isso, foram utilizadas definições contidas na obra Símbolos da Transformação, além do conceito de arquétipo, que estabelecem diálogos entre os campos da biologia e da psicologia. A formação biológica de Jung, aliada a seu interesse e prática no campo da psicologia, possibilitou uma ampliação em seu modo de conceber os fenômenos que observava. A tentativa de abordar um tema tanto pelo viés biológico quanto psicológico revela não só um cuidado como, também, o compromisso com a produção de conhecimento, que, mais do que buscar engrandecer seu campo original de trabalho, pretende estabelecer o diálogo interdisciplinar. Sendo o livro Símbolos da Transformação a obra através da qual Jung se prontifica a divulgar suas teorias e ideias próprias, podemos depreender que ao utilizar em tal trabalho certas premissas de Haeckel o autor acaba nos revelando uma de suas importantes influências epistemológicas.(AU)


This article analyzes the appropriation of the theory of recapitulation of phylogenesis by the ontogenisis, of the biologist Ernst Haeckel, by the Swiss psychiatrist Carl Gustav Jung in the formulation of his psychology project. For this purpose, we used the definitions contained in the book Symbols of Transformation, and the concept of archetype, that establish dialogues between the fields of biology and psychology. The biological formation of Jung, combined with his interest and practice in the field of psychology, allowed an amplification in his way of conceiving the phenomena he observed. The attempt to address a theme, both biologically and psychologically, reveals not only care but also a commitment to the production of knowledge, which, rather than seeking to enhance its original field of work, seeks to establish interdisciplinary dialogue. Being the book Symbols of Transformation, the work through which Jung is prepared to divulge his own theories and ideas, we can deduce that in using in such work certain premises of Haeckel the author ends up revealing to us one of his important epistemological influences.(AU)


Subject(s)
Psychology , Biology , Interdisciplinary Studies
18.
Article in English | WPRIM | ID: wpr-785797

ABSTRACT

Artificial intelligence (AI), big data, and ubiquitous robotic companions —the three most notable technologies of the 4th Industrial Revolution—are receiving renewed attention each day. Technologies that can be experienced in daily life, such as autonomous navigation, real-time translators, and voice recognition services, are already being commercialized in the field of information technology. In the biosciences field in Korea, such technologies have become known to the local public with the introduction of the AI doctor Watson in large number of hospitals. Additionally, AlphaFold, a technology resembling the AI AlphaGo for the game Go, has surpassed the limit on protein folding predictions—the most challenging problems in the field of protein biology. This report discusses the significance of AI technology and big data on the bioscience field. The introduction of automated robots in this field is not just only for the purpose of convenience but a prerequisite for the real sense of AI and the consequent accumulation of basic scientific knowledge.


Subject(s)
Artificial Intelligence , Biology , Biotechnology , Friends , Humans , Korea , Protein Folding , Voice
19.
Article in English | WPRIM | ID: wpr-785579

ABSTRACT

Steroid-resistant nephrotic syndrome (SRNS) has long been a challenge for clinicians due to its poor responsiveness to immunosuppressants, and rapid progression to end-stage renal disease. Identifying a monogenic cause for SRNS may lead to a better understanding of podocyte structure and function in the glomerular filtration barrier. This review focuses on genes associated with slit diaphragm, actin cytoskeleton, transcription factors, nucleus, glomerular basement membrane, mitochondria, and other proteins that affect podocyte biology.


Subject(s)
Actin Cytoskeleton , Biology , Diaphragm , Glomerular Basement Membrane , Glomerular Filtration Barrier , Immunosuppressive Agents , Kidney Failure, Chronic , Mitochondria , Nephrotic Syndrome , Podocytes , Proteinuria , Transcription Factors
20.
Immune Network ; : e8-2019.
Article in English | WPRIM | ID: wpr-740220

ABSTRACT

IL-32 exists as seven mRNA transcripts that can translate into distinct individual IL-32 variants with specific protein domains. These translated protein domains of IL-32 variants code for specific functions that allow for interaction with different molecules intracellularly or extracellularly. The longest variant is IL-32γ possessing 234 amino acid residues with all 11 protein domains, while the shortest variant is IL-32α possessing 131 amino acid residues with three of the protein domains. The first domain exists in 6 variants except IL-32δ variant, which has a distinct translation initiation codon due to mRNA splicing. The last eleventh domain is common domain for all seven IL-32 variants. Numerous studies in different fields, such as inflammation, autoimmunity, pathogen infection, and cancer biology, have claimed the specific biological activity of individual IL-32 variant despite the absence of sufficient data. There are 4 additional IL-32 variants without proper transcripts. In this review, the structural characteristics of seven IL-32 transcripts are described based on the specific protein domains.


Subject(s)
Autoimmunity , Biology , Codon, Initiator , Inflammation , Protein Structure, Tertiary , RNA, Messenger
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