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Noncoding and coding RNAs are key regulators of plant growth, development, and stress responses. To investigate the types of transcripts accumulated during the vegetative to reproductive transition and floral development in the Coffea arabica L., we sequenced small RNA libraries from eight developmental stages, up to anthesis. We combined these data with messenger RNA and PARE sequencing of two important development stages that marks the transition of an apparent latent to a rapid growth stage. In addition, we took advantage of multiple in silico tools to characterize genomic loci producing small RNAs such as phasiRNAs, miRNAs, and tRFs. Our differential and co-expression analysis showed that some types of small RNAs such as tRNAs, snoRNAs, snRNAs, and phasiRNAs preferentially accumulate in a stage-specific manner. Members of the miR482/miR2118 superfamily and their 21-nucleotide phasiRNAs originating from resistance genes show a robust co-expression pattern that is maintained across all the evaluated developmental stages. Finally, the majority of miRNAs accumulate in a family stage-specific manner, related to modulated hormonal responses and transcription factor expression.
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Coffea , Flores , Regulação da Expressão Gênica de Plantas , MicroRNAs , RNA de Plantas , Coffea/genética , Coffea/crescimento & desenvolvimento , Flores/genética , Flores/crescimento & desenvolvimento , RNA de Plantas/genética , MicroRNAs/genética , TetraploidiaRESUMO
PURPOSE: TRPV1 desensitization or blockade promotes hyperthermia in rodents. Daily changes in core body temperature (Tc), spontaneous locomotor activity (SLA), and glucocorticoids are temporal cues for peripheral clocks. Thus, this study aimed to evaluate the effects of both desensitization and blockade of TRPV1 on Tc, SLA, blood corticosterone, and the clock genes Per1 and Bmal1 in the liver and adrenal. METHODS AND RESULTS: Resiniferatoxin (RTX, 20 µg kg-1) known to desensitize the intra-abdominal TRPV1 channels was i. p. administered in adult male rats. One day after, RTX rats displayed higher Tc than vehicle rats (control) in the light and dark phases. RTX rats showed higher corticosterone at zeitgeber time (ZT) 6 and ZT12 compared to ZT0. Control rats showed a rise in corticosterone at ZT12. RTX abolished the Per1 peak in both the liver and adrenal glands, whereas it enhanced the peak of Bmal1 expression in the liver and decreased it in adrenal glands. Circadian variation in Tc and SLA was unaffected despite higher Tc being found along the light phase up to 5 days after RTX injection. Acute blockade of TRPV1 with the antagonist AMG-517 injected at ZT0 increased Tc and reduced corticosterone without affecting SLA. In the liver, while AMG-517 did not affect Per1, it increased Bmal1 mRNA. In adrenal glands, AMG-517 increased Per1 and did not affect Bmal1 expression. Although rats exposed to a 60-min 34 °C environment showed similar hyperthermia to that observed in AMG-517 rats, neither corticosterone nor liver nor adrenal clock genes changed. CONCLUSIONS: Inactivation of TRPV1 by abdominal desensitization or by antagonism alters the time-of-day changes of clock genes expression in the liver and adrenal, as well as corticosterone. TRPV1 may be necessary for signaling cyclical temporal cues for clock genes in the periphery but less critical for the circadian profile of Tc and SLA.
Assuntos
Fatores de Transcrição ARNTL , Corticosterona , Animais , Masculino , Ratos , Glândulas Suprarrenais/metabolismo , Fatores de Transcrição ARNTL/genética , Fatores de Transcrição ARNTL/metabolismo , Temperatura Corporal , Ritmo Circadiano/fisiologia , Fígado/metabolismoRESUMO
Behçet's Disease (BD) is a rare, chronic, relapsing, inflammatory, and multisystemic disease. There is no universally described test for confirming diagnosis, so it is made clinically, on the basis of its classic triad of signs: oral ulcers, genital ulcers, and uveitis (inflammation of the uveal tract of the eye). The aim of this study is to evaluate the importance of endovascular treatment in Behçet's disease. The literature review conducted to achieve this objective covered 30 articles published between 2002 and 2021. Behçet's Disease affects both the venous and arterial systems. Rupture of aneurysms is the main cause of death and thus requires treatment, which can be clinical, open surgical, or endovascular. Endovascular surgery has been gaining ground for surgical treatment of arterial aneurysms, including those related to BD, although the therapy of choice is still controversial.
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RESUMO Objetivo: analisar o estado clínico e nutricional de pacientes submetidos à cirurgia bariátrica. Métodos: trata-se de estudo epidemiológico observacional, com delineamento transversal, norteado pela ferramenta STROBE. Foi realizado entre 2015 e 2016, com dados de pacientes submetidos à cirurgia bariátrica em Y de Roux nos anos de 2012 a 2014, em um hospital privado de Minas Gerais. A coleta de dados ocorreu por meio de questionário semiestruturado, elaborado pelos pesquisadores. Para verificar a existência da associação entre as variáveis do estado nutricional e clínico e o tempo pós-cirúrgico, utilizou-se o teste qui-quadrado de Pearson ou exato de Fisher para as variáveis categóricas. E para as contínuas, os testes Kruskal-Wallis ou Mann-Whitney. Resultados: verificou-se significância estatística para as variáveis: "enfraquecimento de unhas" (p=0,002), "êmese" (p=0,018), "frequência de consumo alcoólico" (p=0,018) e "número de refeições diárias" (p=0,028) no grupo feminino. Conclusão: este estudo revelou alterações no componente clínico e nutricional das pacientes submetidos à cirurgia bariátrica. Houve associações estatisticamente significativas no grupo feminino, incluindo mudanças no perfil clínico de maior episódio de êmese e maior frequência no consumo de álcool. Em relação ao perfil nutricional, pacientes do sexo feminino apresentaram maiores proporções no número de refeições e mais enfraquecimento nas unhas após o procedimento cirúrgico. Reforça-se a importância do acompanhamento e da orientação nutricional e psicológica contínuas, pré e pós-cirúrgicas, minimizando os impactos negativos deste resultado na saúde dos indivíduos.
RESUMEN Objetivo: analizar el estado clínico y nutricional de los pacientes sometidos a cirugía bariátrica. Métodos: se trata de un estudio epidemiológico observacional, con un diseño transversal, guiado por la herramienta STROBE. Se realizó entre 2015 y 2016, con datos de pacientes sometidos a cirugía bariátrica en Roux-en-Y en los años 2012 a 2014, en un hospital privado de Minas Gerais. La recolección de datos se realizó a través de un cuestionario semiestructurado desarrollado por los investigadores. Para verificar la existencia de asociación entre las variables de estado nutricional, clínico y tiempo posquirúrgico se utilizó la prueba qui cuadrado de Pearson o la prueba exacta de Fisher para las variables categóricas. Y para las continuas, las pruebas de Kruskal-Wallis o Mann-Whitney. Resultados: hubo significancia estadística para las variables: "debilitamiento de las uñas" (p = 0,002), "emesis" (p = 0,018), "frecuencia de consumo de alcohol" (p = 0,018) y "número de comidas diarias" (p = 0,028) en el grupo de mujeres. Conclusión: este estudio reveló cambios en el componente clínico y nutricional de los pacientes sometidos a cirugía bariátrica. Hubo asociaciones estadísticamente significativas en el grupo femenino, incluyendo cambios en el perfil clínico de mayor episodio de emesis y mayor frecuencia de consumo de alcohol. En cuanto al perfil nutricional, las pacientes del sexo femenino presentaron mayores proporciones en el número de comidas y mayor debilitamiento de las uñas tras el procedimiento quirúrgico. Se refuerza la importancia del seguimiento continuo y la orientación nutricional y psicológica, pre y posquirúrgica, minimizando los impactos negativos de este resultado en la salud de las personas.
ABSTRACT Objective: to analyze the clinical and nutritional status of patients submitted to bariatric surgery. Methods: this is an observational epidemiological study, with a cross-sectional design, guided by the STROBE tool. It was carried out between 2015 and 2016, with data from patients undergoing Roux-en-Y bariatric surgery in the years 2012 to 2014, in a private hospital in Minas Gerais. Data collection took place through a semi-structured questionnaire developed by the researchers. To verify the existence of an association between the variables of nutritional and clinical status and the time after surgery, Pearson's chi-square test or Fisher's exact test was used for categorical variables. And for continuous ones, the Kruskal-Wallis or Mann-Whitney tests. Results: there was statistical significance for the variables: 'weakening of nails' (p=0.002), 'emesis' (p=0.018), 'frequency of alcohol consumption' (p=0.018) and 'number of daily meals' (p=0.028) in the female group. Conclusion: this study revealed changes in the clinical and nutritional component of patients undergoing bariatric surgery. There were statistically significant associations in the female group, including changes in the clinical profile of greater episode of emesis and greater frequency of alcohol consumption. Regarding the nutritional profile, female patients had higher proportions in the number of meals and more weakening of the nails after the surgical procedure. The importance of monitoring and continuous nutritional and psychological guidance, pre- and post-surgical, is reinforced, minimizing the negative impacts of this result on the health of individuals.
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Humanos , Masculino , Feminino , Adulto , Derivação Gástrica/efeitos adversos , Estado Nutricional , Fatores Socioeconômicos , Consumo de Bebidas Alcoólicas , Estudos Epidemiológicos , Inquéritos e Questionários/estatística & dados numéricos , Cirurgia BariátricaRESUMO
Breast cancer (BC) is a public health problem worldwide, causing suffering and premature death among women. As a heterogeneous disease, BC-specific diagnosis and treatment are challenging. Ectonucleotidases are related to tumor development and their expression may vary among BC. miRNAs may participate in epigenetic events and may regulate ectonucleotidases in BC. This study aimed to evaluate the expression of ectonucleotidases according to BC subtypes and to predict if there is post-transcriptional regulation of them by miRNAs. MCF 10A (non-tumorigenic), MCF7 (luminal BC), and MDA-MB-231 (triple-negative BC - TNBC) breast cell lines were used and ENTPD1 (the gene encoding for NTPDase1) and NT5E (the gene encoding for ecto-5'-nucleotidase) gene expression was determined. Interestingly, the expression of ENTPD1 was only observed in MCF7 and NT5E was lower in MCF7 compared to MDA-MB-231 cell line. ATP, ADP, and AMP hydrolysis were observed on the surface of all cell lines, being higher in MDA-MB-231. Like qPCR, the activity of AMP hydrolysis was also lower in the MCF7 cells, which may represent a striking feature of this BC subtype. In silico analyses confirmed that the miRNAs miR-101-3p, miR-141-3p, and miR-340-5p were higher expressed in MCF7 cells and targeted NT5E mRNA. Altogether, data suggest that the regulation of NT5E by miRNAs in MCF7 lineage may direct the molecular profile of luminal BC. Thus, we suggest that the roles of ecto-5'-nucleotidase and the aforementioned miRNAs must be unraveled in TNBC to be possibly defined as diagnostic and therapeutic targets.
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Neoplasias da Mama , MicroRNAs , Neoplasias de Mama Triplo Negativas , 5'-Nucleotidase/genética , 5'-Nucleotidase/metabolismo , Antígenos CD , Apirase , Neoplasias da Mama/genética , Neoplasias da Mama/patologia , Linhagem Celular Tumoral , Feminino , Regulação Neoplásica da Expressão Gênica/genética , Humanos , MicroRNAs/genética , Neoplasias de Mama Triplo Negativas/tratamento farmacológico , Neoplasias de Mama Triplo Negativas/genética , Neoplasias de Mama Triplo Negativas/patologiaRESUMO
Resumo A doença de Behçet (DB) é caracterizada por ser uma doença rara, crônica, recidivante, inflamatória e multissistêmica. Quanto ao diagnóstico, não existe nenhum teste universalmente descrito; logo, ele é feito de maneira clínica, por meio da presença da sua tríade clássica de sinais: úlceras orais, úlceras genitais e uveíte (inflamação do trato uveal do olho). O objetivo deste estudo foi avaliar a importância do tratamento endovascular na doença de Behçet, sendo que a revisão de literatura para obter essa resposta foi realizada a partir de 30 artigos publicados entre 2002 e 2021. A DB acomete tanto o sistema venoso quanto o arterial. A ruptura de aneurismas é a principal causa de morte e necessita de tratamento, podendo ser clínico, cirúrgico aberto ou por via endovascular. A cirurgia endovascular vem ganhando espaço no tratamento cirúrgico nos casos de aneurismas arteriais, inclusive nos relacionados com DB, apesar de a terapia de escolha ainda ser controversa.
Abstract Behçet's Disease (BD) is a rare, chronic, relapsing, inflammatory, and multisystemic disease. There is no universally described test for confirming diagnosis, so it is made clinically, on the basis of its classic triad of signs: oral ulcers, genital ulcers, and uveitis (inflammation of the uveal tract of the eye). The aim of this study is to evaluate the importance of endovascular treatment in Behçet's disease. The literature review conducted to achieve this objective covered 30 articles published between 2002 and 2021. Behçet's Disease affects both the venous and arterial systems. Rupture of aneurysms is the main cause of death and thus requires treatment, which can be clinical, open surgical, or endovascular. Endovascular surgery has been gaining ground for surgical treatment of arterial aneurysms, including those related to BD, although the therapy of choice is still controversial.
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Síndrome de Behçet/cirurgia , Procedimentos Endovasculares , Aneurisma/cirurgia , Síndrome de Behçet/complicações , Doenças RarasRESUMO
Light is the most powerful temporal cue that entrains physiology and behavior through modulation of the suprachiasmatic nucleus (SCN) of the hypothalamus. However, on a daily basis, individuals face a combination of light and several non-photic cues, such as social interaction. In order to investigate whether SCN activity and SCN-driven rhythms are altered by social interaction, adult male C57BLJ/6 mice were maintained in groups of 3-4 animals per cage or 1 animal per cage (socially isolated) under 12:12 h / light:dark (LD) cycles or constant darkness (DD). Analysis of the two anatomical subdivisions (ventral, v and dorsal, d) of the medial SCN revealed an effect of housing conditions on the d-SCN but not on the v-SCN on the number of c-Fos immunoreactive (ir) neurons. As such, 2 h after the light-phase onset d-SCN c-Fos-ir number was lower in single-housed mice under LD. Importantly, under DD there were no effect of housing conditions in the number of c-Fos-ir SCN neurons. Social isolation increased the amplitude and strength of SCN-driven rhythm of body temperature (Tc) entrained to LD and it advanced its onset, uncoupling with spontaneous locomotor activity (SLA) rhythm, without altering endogenous Tc and SLA rhythms expressed under DD. Associated with reduced Tc in the light phase, single-housed mice showed reduced body weight. However, these phenotypes were not accompanied by changes in the number of c-Fos-ir neurons in the preoptic area (POA), which are known to regulate energy metabolism and Tc. Altogether, these results imply that the social interaction masking effect on the d-SCN is added to that of light stimulus, in order to achieve full c-Fos expression in the SCN, which, in turn seems to be required to maintain daily-phase coherence between the photo-entrained rhythms of Tc and SLA. There might be an inter-relationship between masking (social interaction) and entrainment stimulus (light) that impacts the circadian parameters of the photo-entrained Tc rhythm. As such, in the absence of social interactions a more robust Tc rhythm is shown. This inter-relationship seems to occur in the dorsal subdivision of the SCN but not in the POA.
Assuntos
Ritmo Circadiano , Interação Social , Animais , Escuridão , Masculino , Camundongos , Proteínas Proto-Oncogênicas c-fos/metabolismo , Núcleo SupraquiasmáticoRESUMO
BACKGROUND: Hip motion in the transverse plane is coupled with foot motion in the frontal plane during closed kinematic activities, such as gait. Considering that movement patterns and bone alignment might influence passive mechanical properties of joints in the long term, it is possible that hip passive stiffness and foot complex stiffness and alignment are related to each other. OBJECTIVES: To investigate whether hip passive stiffness, midfoot passive stiffness and shank-forefoot alignment are related to each other. METHOD: Thirty healthy adult individuals with a mean age of 25.4 years participated (18 women and 12 men). The Foot Torsimeter was used to measure midfoot stiffness, and hip stiffness and foot alignment were measured using clinical measures. Pearson and Spearman correlation coefficients were calculated to test the associations between each pair of variables, with αâ¯=â¯0.05. RESULTS: Hip stiffness was positively correlated with midfoot absolute stiffness (râ¯=â¯0.41, pâ¯=â¯0.02), indicating that increased hip stiffness is associated with increased midfoot stiffness. There were no associations between shank-forefoot alignment and the other variables. CONCLUSIONS: In clinical settings, individuals with reduced hip passive stiffness may also have reduced midfoot passive stiffness, and vice versa. Shank-forefoot alignment is not linearly associated with hip or midfoot passive stiffness.
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Pé , Marcha , Adulto , Fenômenos Biomecânicos , Feminino , Mãos , Humanos , Perna (Membro) , MasculinoRESUMO
Schistosoma mansoni causes schistosomiasis, which affects 240 million people, and 700 million people are living at risk of infection. Epigenetic mechanisms are important for transcriptional control and are well-known conserved transcriptional co-regulators in evolution, already described in mammal, yeast, protozoa and S. mansoni, responsible for heterochromatization and gene silence mechanisms through the formation of complexes of transcriptional repression in chromatin. Previous results from another group have shown that HP1 (SmCBX) proteins form chromatin complexes with SmMDB2/3 proteins and regulate stem cells and oviposition in parasite adult worms. In addition, results from other groups have shown that cercariae are transcriptionally silent and epigenetic mechanisms are involved in the regulation of gene expression in this stage. In this work, our aim was to give insights into SmHP1 and proteins involved in transcriptional regulation in the cercariae stage. Using monoclonal anti-HP1 antibody for Western blotting, immunoprecipitation, and mass spectrometry, we preliminarily determined nuclear proteins that putatively interact with HP1 to form complexes to regulate gene expression, heterochromatin formation, and translational complexes in the cercariae stage. So far, our data is to give some insights into nuclear interactors in S. mansoni cercariae. SIGNIFICANCE: The significance of this original paper is the evidence for Heterochromatin Protein (HP1), interaction with nuclear proteins in the cercariae stage. Schistosoma mansoni cercariae are the infective stage of the human beings in endemic areas of schistosomiasis, a neglected disease, most prevalent in Brazil and Africa. While cercariae are waiting for a host, it does not feed, gene expression is silent and protein synthesis is stopped. These biochemical mechanisms are recovered when cercariae find a human host, but all proteins and mechanisms are not still elucidated. Until now, literature shows that these phenomena are regulated by epigenetics mechanisms, dependent of histone posttranslational modifications. But we have few pieces of evidence about the other proteins that participates in these processes and which are the co-regulators of expression.
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Cercárias , Schistosoma mansoni , Animais , Brasil , Homólogo 5 da Proteína Cromobox , Proteínas Cromossômicas não Histona , Feminino , HumanosRESUMO
BACKGROUND Key genes control the infectivity of the Schistosoma haematobium causing schistosomiasis. A method for understanding the regulation of these genes might help in developing new disease strategies to control schistosomiasis, such as the silencing mediated by microRNAs (miRNAs). The miRNAs have been studied in schistosome species and they play important roles in the post-transcriptional regulation of genes, and in parasite-host interactions. However, genome-wide identification and characterisation of novel miRNAs and their pathway genes and their gene expression have not been explored deeply in the genome and transcriptome of S. haematobium. OBJECTIVES Identify and characterise mature and precursor miRNAs and their pathway genes in the S. haematobium genome. METHODS Computational prediction and characterisation of miRNAs and genes involved in miRNA pathway from S. haematobium genome on SchistoDB. Conserved domain analysis was performed using PFAM and CDD databases. A robust algorithm was applied to identify mature miRNAs and their precursors. The characterisation of the precursor miRNAs was performed using RNAfold, RNAalifold and Perl scripts. FINDINGS We identified and characterised 14 putative proteins involved in miRNA pathway including ARGONAUTE and DICER in S. haematobium. Besides that, 149 mature miRNAs and 131 precursor miRNAs were identified in the genome including novel miRNAs. MAIN CONCLUSIONS miRNA pathway occurs in the S. haematobium, including endogenous miRNAs and miRNA pathway components, suggesting a role of this type of non-coding RNAs in gene regulation in the parasite. The results found in this work will open up a new avenue for studying miRNAs in the S. haematobium biology in helping to understand the mechanism of gene silencing in the human parasite Schistosome.
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Biologia Computacional/métodos , Regulação da Expressão Gênica/genética , MicroRNAs/genética , Schistosoma haematobium/genética , Esquistossomose/parasitologia , Animais , Humanos , Análise de Sequência de RNA , Transcriptoma/genéticaRESUMO
BACKGROUND Key genes control the infectivity of the Schistosoma haematobium causing schistosomiasis. A method for understanding the regulation of these genes might help in developing new disease strategies to control schistosomiasis, such as the silencing mediated by microRNAs (miRNAs). The miRNAs have been studied in schistosome species and they play important roles in the post-transcriptional regulation of genes, and in parasite-host interactions. However, genome-wide identification and characterisation of novel miRNAs and their pathway genes and their gene expression have not been explored deeply in the genome and transcriptome of S. haematobium. OBJECTIVES Identify and characterise mature and precursor miRNAs and their pathway genes in the S. haematobium genome. METHODS Computational prediction and characterisation of miRNAs and genes involved in miRNA pathway from S. haematobium genome on SchistoDB. Conserved domain analysis was performed using PFAM and CDD databases. A robust algorithm was applied to identify mature miRNAs and their precursors. The characterisation of the precursor miRNAs was performed using RNAfold, RNAalifold and Perl scripts. FINDINGS We identified and characterised 14 putative proteins involved in miRNA pathway including ARGONAUTE and DICER in S. haematobium. Besides that, 149 mature miRNAs and 131 precursor miRNAs were identified in the genome including novel miRNAs. MAIN CONCLUSIONS miRNA pathway occurs in the S. haematobium, including endogenous miRNAs and miRNA pathway components, suggesting a role of this type of non-coding RNAs in gene regulation in the parasite. The results found in this work will open up a new avenue for studying miRNAs in the S. haematobium biology in helping to understand the mechanism of gene silencing in the human parasite Schistosome.
Assuntos
Humanos , Animais , Schistosoma haematobium/genética , Esquistossomose/parasitologia , Regulação da Expressão Gênica/genética , Biologia Computacional/métodos , MicroRNAs/genética , Análise de Sequência de RNA , Transcriptoma/genéticaRESUMO
RESUMO Objetivo Analisar as dificuldades de fonoaudiólogos quanto à intervenção fonoaudiológica em indivíduos com doenças neurodegenerativas. Métodos Trata-se de um estudo transversal com 74 fonoaudiólogos brasileiros. Os profissionais foram convidados, por meio de redes sociais, a responder um questionário online com perguntas sobre sua atuação profissional com indivíduos com doenças neurodegenerativas. Foram incluídos apenas fonoaudiólogos que atuavam no território brasileiro e que atendiam, ou já haviam atendido, indivíduos com doenças neurodegenerativas. Para verificar a existência de associação entre aspectos da experiência dos fonoaudiólogos e as dificuldades referidas, utilizaram-se os testes estatísticos Mann-Whitney U, Qui-quadrado e Exato de Fisher. Resultados As maiores dificuldades encontradas quanto ao atendimento de indivíduos com doenças neurodegenerativas foram: dificuldade de adesão do cuidador às orientações fonoaudiológicas (52,7%), insuficiência na comunicação entre os profissionais da equipe para um cuidado interdisciplinar (52,7%) e chegada tardia para avaliação (50%). A dificuldade de adesão do paciente às orientações fonoaudiológicas (p=0,015) e a dificuldade relacionada à insuficiência na comunicação entre os profissionais para um cuidado interdisciplinar (p=0,036) foram associadas ao menor tempo de formação profissional. Já a dificuldade de adesão do cuidador às orientações fonoaudiológicas, foi associada a equipes não interdisciplinares (p=0,014). Conclusão A falta de comunicação eficiente na equipe multiprofissional, a não adesão dos cuidadores e a chegada tardia do indivíduo para avaliação fonoaudiológica, junto ao desconhecimento das possibilidades de atuação da fonoaudiologia, foram os principais obstáculos enfrentados pelos profissionais. O tempo de formação profissional foi um dos aspectos mais associados às dificuldades no trabalho de fonoaudiólogos que atendem indivíduos com doenças neurodegenerativas.
ABSTRACT Purpose To analyze the difficulties of speech-language therapists regarding speech-language intervention in patients with neurodegenerative diseases. Methods This is a cross-sectional study with 74 Brazilian speech-language therapists. The professionals were invited through the social networks to respond an online questionnaire with open and closed questions about their professional performance with patients with neurodegenerative diseases. We included only speech-language therapists who work within the Brazilian territory and who attend, or have attended, individuals with neurodegenerative diseases. Descriptive and inferential analysis of the data was performed. Mann-Whitney U, Chi-square and Fisher Exact tests were used. Results The greatest difficulties encountered in the care of patients with neurodegenerative diseases were: difficulty in caregiver adhering to orientations (52.7%), lack of communication among professionals of the team for interdisciplinary care (52.7%), and late arrival for evaluation (50%). The difficulty of patient adherence to speech-language therapist's orientations (p=0.015) and difficulty related to communication failure among professionals for interdisciplinary care (p=0.036) were associated with shorter time of profession. However, the difficulty of adherence of the caregiver to orientations was associated with non-interdisciplinary teams (p=0.014). Conclusion The lack of efficient communication in multiprofessional team, the non-adherence of the caregivers and the late arrival of the individual for speech-language assessment, together with the lack of knowledge about the possibilities of speech-language therapy, were the main obstacles faced by professionals. The time of profession was the main variable associated with difficulties in the work of the speech-language therapists that attend patients with neurodegenerative diseases.
Assuntos
Humanos , Equipe de Assistência ao Paciente , Doenças Neurodegenerativas , Fonoaudiologia , Relações Médico-Paciente , Brasil , Cooperação do Paciente , Cuidadores , Comunicação Interdisciplinar , Capacitação Profissional , Integralidade em SaúdeRESUMO
Cultivated tomato, Solanum lycopersicum, is one of the most common fruits in the global food industry. Together with the wild tomato Solanum pennellii, it is widely used for developing better cultivars. MicroRNAs affect mRNA regulation, inhibiting its translation and/or promoting its degradation. Important proteins involved in these processes are ARGONAUTE and DICER. This study aimed to identify and characterize the genes involved in the miRNA processing pathway, miRNA molecules and target genes in both species. We validated the presence of pathway genes and miRNA in different NGS libraries and 6 miRNA families using quantitative RT-PCR. We identified 71 putative proteins in S. lycopersicum and 108 in S. pennellii likely involved in small RNAs processing. Of these, 29 and 32 participate in miRNA processing pathways, respectively. We identified 343 mature miRNAs, 226 pre-miRNAs in 87 families, including 192 miRNAs, which were not previously identified, belonging to 38 new families in S. lycopersicum. In S. pennellii, we found 388 mature miRNAs and 234 pre-miRNAs contained in 85 families. All miRNAs found in S. pennellii were unpublished, being identified for the first time in our study. Furthermore, we identified 2471 and 3462 different miRNA target in S. lycopersicum and S. pennellii, respectively.
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Frutas/genética , MicroRNAs/genética , RNA Mensageiro/genética , Solanum lycopersicum/genética , Frutas/crescimento & desenvolvimento , Perfilação da Expressão Gênica , Regulação da Expressão Gênica de Plantas/genética , Genoma de Planta/genética , Sequenciamento de Nucleotídeos em Larga Escala , Solanum lycopersicum/crescimento & desenvolvimentoRESUMO
microRNAs (miRNAs) are derived from self-complementary hairpin structures, while small-interfering RNAs (siRNAs) are derived from double-stranded RNA (dsRNA) or hairpin precursors. The core mechanism of sRNA production involves DICER-like (DCL) in processing the smallRNAs (sRNAs) and ARGONAUTE (AGO) as effectors of silencing, and siRNA biogenesis also involves action of RNA-Dependent RNA Polymerase (RDR), Pol IV and Pol V in biogenesis. Several other proteins interact with the core proteins to guide sRNA biogenesis, action, and turnover. We aimed to unravel the components and functions of the RNA-guided silencing pathway in a non-model plant species of worldwide economic relevance. The sRNA-guided silencing complex members have been identified in the Coffea canephora genome, and they have been characterized at the structural, functional, and evolutionary levels by computational analyses. Eleven AGO proteins, nine DCL proteins (which include a DCL1-like protein that was not previously annotated), and eight RDR proteins were identified. Another 48 proteins implicated in smallRNA (sRNA) pathways were also identified. Furthermore, we identified 235 miRNA precursors and 317 mature miRNAs from 113 MIR families, and we characterized ccp-MIR156, ccp-MIR172, and ccp-MIR390. Target prediction and gene ontology analyses of 2239 putative targets showed that significant pathways in coffee are targeted by miRNAs. We provide evidence of the expansion of the loci related to sRNA pathways, insights into the activities of these proteins by domain and catalytic site analyses, and gene expression analysis. The number of MIR loci and their targeted pathways highlight the importance of miRNAs in coffee. We identified several roles of sRNAs in C. canephora, which offers substantial insight into better understanding the transcriptional and post-transcriptional regulation of this major crop.
Assuntos
Café/genética , Inativação Gênica , Genômica , RNA Interferente Pequeno/genética , Sequência de BasesRESUMO
In rodents, kisspeptin neurons in the rostral periventricular area of the third ventricle (RP3V) of the preoptic area are considered to provide a major stimulatory input to the GnRH neuronal network that is responsible for triggering the preovulatory LH surge. Noradrenaline (NA) is one of the main modulators of GnRH release, and NA fibers are found in close apposition to kisspeptin neurons in the RP3V. Our objective was to interrogate the role of NA signaling in the kisspeptin control of GnRH secretion during the estradiol induced LH surge in ovariectomized rats, using prazosin, an α1-adrenergic receptor antagonist. In control rats, the estradiol-induced LH surge at 17 hours was associated with a significant increase in GnRH and kisspeptin content in the median eminence with the increase in kisspeptin preceding that of GnRH and LH. Prazosin, administered 5 and 3 hours prior to the predicted time of the LH surge truncated the LH surge and abolished the rise in GnRH and kisspeptin in the median eminence. In the preoptic area, prazosin blocked the increases in Kiss1 gene expression and kisspeptin content in association with a disruption in the expression of the clock genes, Per1 and Bmal1. Together these findings demonstrate for the first time that NA modulates kisspeptin synthesis in the RP3V through the activation of α1-adrenergic receptors prior to the initiation of the LH surge and indicate a potential role of α1-adrenergic signaling in the circadian-controlled pathway timing of the preovulatory LH surge.
Assuntos
Regulação da Expressão Gênica , Kisspeptinas/agonistas , Hormônio Luteinizante/metabolismo , Neurônios/metabolismo , Norepinefrina/metabolismo , Área Pré-Óptica/metabolismo , Regulação para Cima , Fatores de Transcrição ARNTL/agonistas , Fatores de Transcrição ARNTL/antagonistas & inibidores , Fatores de Transcrição ARNTL/genética , Fatores de Transcrição ARNTL/metabolismo , Antagonistas de Receptores Adrenérgicos alfa 1/farmacologia , Animais , Estradiol/farmacologia , Terapia de Reposição de Estrogênios , Feminino , Fase Folicular/efeitos dos fármacos , Regulação da Expressão Gênica/efeitos dos fármacos , Kisspeptinas/antagonistas & inibidores , Kisspeptinas/genética , Kisspeptinas/metabolismo , Proteínas do Tecido Nervoso/agonistas , Proteínas do Tecido Nervoso/genética , Proteínas do Tecido Nervoso/metabolismo , Neurônios/efeitos dos fármacos , Ovariectomia/efeitos adversos , Proteínas Circadianas Period/agonistas , Proteínas Circadianas Period/antagonistas & inibidores , Proteínas Circadianas Period/genética , Proteínas Circadianas Period/metabolismo , Prazosina/farmacologia , Área Pré-Óptica/efeitos dos fármacos , Ratos Wistar , Receptores Adrenérgicos alfa 1/química , Receptores Adrenérgicos alfa 1/metabolismo , Transdução de Sinais/efeitos dos fármacos , Transmissão Sináptica/efeitos dos fármacos , Regulação para Cima/efeitos dos fármacosRESUMO
Traumatic neuromas are tumors resulting from hyperplasia of axons and nerve sheath cells after section or injury to the nervous tissue. We present a case of this tumor, confirmed by anatomopathological examination, in a male patient with history of circumcision. Knowledge of this entity is very important in achieving the differential diagnosis with other lesions that affect the genital area such as condyloma acuminata, bowenoid papulosis, lichen nitidus, sebaceous gland hyperplasia, achrochordon and pearly penile papules.
Assuntos
Circuncisão Masculina/efeitos adversos , Neuroma/etiologia , Neoplasias Penianas/etiologia , Diagnóstico Diferencial , Humanos , Masculino , Neuroma/patologia , Neoplasias Penianas/patologia , Pênis/lesões , Pênis/patologia , Adulto JovemRESUMO
Abstract Traumatic neuromas are tumors resulting from hyperplasia of axons and nerve sheath cells after section or injury to the nervous tissue1. We present a case of this tumor, confirmed by anatomopathological examination, in a male patient with history of circumcision. Knowledge of this entity is very important in achieving the differential diagnosis with other lesions that affect the genital area such as condyloma acuminata, bowenoid papulosis, lichen nitidus, sebaceous gland hyperplasia, achrochordon and pearly penile papules.
Assuntos
Humanos , Masculino , Adulto Jovem , Circuncisão Masculina/efeitos adversos , Neuroma/etiologia , Neoplasias Penianas/etiologia , Diagnóstico Diferencial , Neuroma/patologia , Neoplasias Penianas/patologia , Pênis/lesões , Pênis/patologiaRESUMO
Hansen's disease is a chronic infecto-contagious disease caused by Mycobacterium leprae. The bacillus prefers low-temperature areas and the nose is usually the initial site of lesions. Transmission of the bacilli occurs by nasal and oropharyngeal secretions, and through solutions of continuity of the skin and/or mucosae. Nasal manifestations are found in the later stages of the disease.
Assuntos
Hanseníase Virchowiana/patologia , Deformidades Adquiridas Nasais/patologia , Doenças Nasais/patologia , Idoso , Humanos , Masculino , Mycobacterium leprae , Deformidades Adquiridas Nasais/microbiologia , Doenças Nasais/microbiologiaRESUMO
Hansen's disease is a chronic infecto-contagious disease caused by Mycobacterium leprae. The bacillus prefers low-temperature areas and the nose is usually the initial site of lesions. Transmission of the bacilli occurs by nasal and oropharyngeal secretions, and through solutions of continuity of the skin and/or mucosae. Nasal manifestations are found in the later stages of the disease.
Assuntos
Humanos , Masculino , Idoso , Hanseníase Virchowiana/patologia , Deformidades Adquiridas Nasais/patologia , Doenças Nasais/patologia , Deformidades Adquiridas Nasais/microbiologia , Doenças Nasais/microbiologia , Mycobacterium lepraeRESUMO
Pityriasis Rubra Pilaris (PRP) is a chronic and rare papulosquamous disorder. Treatment of Pityriasis Rubra Pilaris is based on empiric evidence because of several doubts regarding its etiology and also because of its relative rarity, making randomized studies difficult to perform. Some factors suggest that the metabolism of vitamin A is involved in pathogenesis. We report a case of Pityriasis Rubra Pilaris associated with autoimmune hypothyroidism which presented rapid and complete response after thyroid hormone replacement, without any association with other systemic treatment. In literature there are only three other reports of significant improvement of the lesions after hormonal correction. Deficiency of thyroid hormone inhibits the conversion of carotene into vitamin A, which would be responsible for the occurrence of Pityriasis Rubra Pilaris in this patient.