357 research outputs found

    Avaliação regional de linhagens de feijoeiro comum do grupo preto no norte do Espírito Santo.

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    Este estudo tem por objetivo divulgar os resultados dos ensaios de VCU?s de 11 genótipos de feijoeiro do grupo preto, conduzidos nos anos de 2013 e 2014 no estado do Espírito Santo.CONAF

    Avaliação de linhagens de feijoeiro comum no tabuleiro costeiro do Espírito Santo.

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    Este trabalho tem o objetivo de divulgar os resultados dos Testes de Adaptação Local, sob a responsabilidade do Instituto Capixaba de Pesquisa, Assistência Técnica e Extensão Rural (INCAPER), conduzidos na região dos tabuleiros costeiros do Espírito Santo no período de 2010 a 2012.CONAF

    Avaliação de linhagens de feijoeiro comum de grãos carioca no norte do Espírito Santo.

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    Este estudo tem por objetivo divulgar os resultados dos ensaios de VCU?s de 14 genótipos de feijoeiro do grupo comercial carioca, conduzidos no ano de 2013 e 2014 no Estado do Espírito Santo.CONAF

    Avaliação de linhagens de feijoeiro comum no Estado do Espírito Santo no período de 2008 a 2009.

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    Esse trabalho tem por objetivo divulgar os resultados dos ensaios de Teste de Adaptação Local, conduzidos sob a responsabilidade do Instituto Capixaba de Pesquisa, Assistência Técnica e Extensão Rural (INCAPER), no Espírito Santo no período de 2008 a 2009.CONAF

    When prosthetic joint infection may lead to premalignant colorectal lesion detection

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    Osteoarthritis (OA) is a common musculoskeletal disorder that affects millions of people worldwide, and total knee arthroplasty (TKA) is a common treatment for advanced OA. However, joint replacement surgeries may lead to complications such as deep vein thrombosis (DVT), surgical site infection, and prosthetic joint infection (PJI). Our objective is to discuss a Streptococcus bovis group (SBG) PJI case after TKA and its possible consequences in clinical practice. We describe a 67-year-old female who underwent TKA and developed initial complications including wound hematoma, symptomatic anemia, and acute DVT. Further investigations because of knee pain persistence and inflammatory signs post TKA revealed the presence of Staphylococcus aureus in the synovial and scar tissues from the knee and SBG in the periprosthetic membrane from the revision surgery, as well as mitral infective endocarditis and a large stenosing villous polypoid lesion in the ascending colon. SBG osteoarticular infection post TKA is a rare condition, but it may be associated with severe diseases. This article highlights the link between SBG and colorectal cancer (CRC) and emphasizes the importance of an echocardiogram and a colonoscopy for early detection and prompt treatment of infective endocarditis and CRC. This diagnostic workup should be performed even in the absence of symptoms, for early diagnosis and increased chance of cure. A multidisciplinary approach, involving orthopedists, infectious disease specialists, cardiologists, and gastroenterologists, among others, is advised to effectively manage SBG infections and improve patient outcomes

    MAGGnet : an international network to foster mitigation of agricultural greenhouse gases

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    Liebig, M. A. USDA-ARS, Mandan, ND, USA.Franzluebbers, A. J. USDA-ARS, Raleigh, NC, USA.Alvarez, C. Instituto Nacional de Tecnología Agropecuaria (INTA). Centro Regional Córdoba. Estación Experimental Agropecuaria Manfredi (EEA Manfredi). Córdoba, Argentina.Chiesa, T. D. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina.Lewczuk, N. Instituto Nacional de Tecnología Agropecuaria (INTA). Buenos Aires, Argentina.Piñeiro, Gervasio. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina.Posse, Graciela Noemí. Instituto Nacional de Tecnología Agropecuaria (INTA). Buenos Aires, Argentina.Yahdjian, María Laura. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina.8Research networks provide a framework for review, synthesis and systematic testing of theories by multiple scientists across international borders critical for addressing global-scale issues. In 2012, a GHG research network referred to as MAGGnet (Managing Agricultural Greenhouse Gases Network) was established within the Croplands Research Group of the Global Research Alliance on Agricultural Greenhouse Gases (GRA). With involvement from 46 alliance member countries, MAGGnet seeks to provide a platform for the inventory and analysis of agricultural GHG mitigation research throughout the world. To date, metadata from 315 experimental studies in 20 countries have been compiled using a standardized spreadsheet. Most studies were completed (74%) and conducted within a 1-3-year duration (68%). Soil carbon and nitrous oxide emissions were measured in over 80% of the studies. Among plant variables, grain yield was assessed across studies most frequently (56%), followed by stover (35%) and root (9%) biomass. MAGGnet has contributed to modeling efforts and has spurred other research groups in the GRA to collect experimental site metadata using an adapted spreadsheet. With continued growth and investment, MAGGnet will leverage limited-resource investments by any one country to produce an inclusive, globally shared meta-database focused on the science of GHG mitigation

    POLRMT regulates the switch between replication primer formation and gene expression of mammalian mtDNA

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    Mitochondria are vital in providing cellular energy via their oxidative phosphorylation system, which requires the coordinated expression of genes encoded by both the nuclear and mitochondrial genomes (mtDNA). Transcription of the circular mammalian mtDNA depends on a single mitochondrial RNA polymerase (POLRMT). Although the transcription initiation process is well understood, it is debated whether POLRMT also serves as the primase for the initiation of mtDNA replication. In the nucleus, the RNA polymerases needed for gene expression have no such role. Conditional knockout of Polrmt in the heart results in severe mitochondrial dysfunction causing dilated cardiomyopathy in young mice. We further studied the molecular consequences of different expression levels of POLRMT and found that POLRMT is essential for primer synthesis to initiate mtDNA replication in vivo. Furthermore, transcription initiation for primer formation has priority over gene expression. Surprisingly, mitochondrial transcription factor A (TFAM) exists in an mtDNA-free pool in the Polrmt knockout mice. TFAM levels remain unchanged despite strong mtDNA depletion, and TFAM is thus protected from degradation of the AAA(+) Lon protease in the absence of POLRMT. Last, we report that mitochondrial transcription elongation factor may compensate for a partial depletion of POLRMT in heterozygous Polrmt knockout mice, indicating a direct regulatory role of this factor in transcription. In conclusion, we present in vivo evidence that POLRMT has a key regulatory role in the replication of mammalian mtDNA and is part of a transcriptional mechanism that provides a switch between primer formation for mtDNA replication and mitochondrial gene expression
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