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Vale M, Badim H, Gerós H, Conde A. Non-Mature miRNA-Encoded Micropeptide miPEP166c Stimulates Anthocyanin and Proanthocyanidin Synthesis in Grape Berry Cells. Int J Mol Sci 2024; 25:1539. [PMID: 38338816 PMCID: PMC10855927 DOI: 10.3390/ijms25031539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 01/15/2024] [Accepted: 01/23/2024] [Indexed: 02/12/2024] Open
Abstract
The phenylpropanoid and flavonoid pathways exhibit intricate regulation, not only influenced by environmental factors and a complex network of transcription factors but also by post-transcriptional regulation, such as silencing by microRNAs and miRNA-encoded micropeptides (miPEPs). VviMYBC2-L1 serves as a transcriptional repressor for flavonoids, playing a crucial role in coordinating the synthesis of anthocyanin and proanthocyanidin. It works in tandem with their respective transcriptional activators, VviMYBA1/2 and VviMYBPA1, to maintain an equilibrium of flavonoids. We have discovered a miPEP encoded by miR166c that appears to target VviMYBC2-L1. We conducted experiments to test the hypothesis that silencing this transcriptional repressor through miPEP166c would stimulate the synthesis of anthocyanins and proanthocyanidins. Our transcriptional analyses by qPCR revealed that the application of exogenous miPEP166c to Gamay Fréaux grape berry cells resulted in a significant upregulation in flavonoid transcriptional activators (VviMYBA1/2 and VviMYBPA1) and structural flavonoid genes (VviLDOX and VviDFR), as well as genes involved in the synthesis of proanthocyanidins (VviLAR1 and VviANR) and anthocyanins (VviUFGT1). These findings were supported by the increased enzyme activities of the key enzymes UFGT, LAR, and ANR, which were 2-fold, 14-fold, and 3-fold higher, respectively, in the miPEP166c-treated cells. Ultimately, these changes led to an elevated total content of anthocyanins and proanthocyanidins.
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Affiliation(s)
- Mariana Vale
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho, 4710-057 Braga, Portugal; (M.V.); (H.B.); (A.C.)
| | - Hélder Badim
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho, 4710-057 Braga, Portugal; (M.V.); (H.B.); (A.C.)
| | - Hernâni Gerós
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho, 4710-057 Braga, Portugal; (M.V.); (H.B.); (A.C.)
- Centre of Biological Engineering (CEB), Department of Engineering, University of Minho, 4710-057 Braga, Portugal
| | - Artur Conde
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho, 4710-057 Braga, Portugal; (M.V.); (H.B.); (A.C.)
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Garrido A, Conde A, Serôdio J, De Vos RCH, Cunha A. Fruit Photosynthesis: More to Know about Where, How and Why. Plants (Basel) 2023; 12:2393. [PMID: 37446953 DOI: 10.3390/plants12132393] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 06/13/2023] [Accepted: 06/15/2023] [Indexed: 07/15/2023]
Abstract
Not only leaves but also other plant organs and structures typically considered as carbon sinks, including stems, roots, flowers, fruits and seeds, may exhibit photosynthetic activity. There is still a lack of a coherent and systematized body of knowledge and consensus on the role(s) of photosynthesis in these "sink" organs. With regard to fruits, their actual photosynthetic activity is influenced by a range of properties, including fruit anatomy, histology, physiology, development and the surrounding microclimate. At early stages of development fruits generally contain high levels of chlorophylls, a high density of functional stomata and thin cuticles. While some plant species retain functional chloroplasts in their fruits upon subsequent development or ripening, most species undergo a disintegration of the fruit chloroplast grana and reduction in stomata functionality, thus limiting gas exchange. In addition, the increase in fruit volume hinders light penetration and access to CO2, also reducing photosynthetic activity. This review aimed to compile information on aspects related to fruit photosynthesis, from fruit characteristics to ecological drivers, and to address the following challenging biological questions: why does a fruit show photosynthetic activity and what could be its functions? Overall, there is a body of evidence to support the hypothesis that photosynthesis in fruits is key to locally providing: ATP and NADPH, which are both fundamental for several demanding biosynthetic pathways (e.g., synthesis of fatty acids); O2, to prevent hypoxia in its inner tissues including seeds; and carbon skeletons, which can fuel the biosynthesis of primary and secondary metabolites important for the growth of fruits and for spreading, survival and germination of their seed (e.g., sugars, flavonoids, tannins, lipids). At the same time, both primary and secondary metabolites present in fruits and seeds are key to human life, for instance as sources for nutrition, bioactives, oils and other economically important compounds or components. Understanding the functions of photosynthesis in fruits is pivotal to crop management, providing a rationale for manipulating microenvironmental conditions and the expression of key photosynthetic genes, which may help growers or breeders to optimize development, composition, yield or other economically important fruit quality aspects.
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Affiliation(s)
- Andreia Garrido
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | - Artur Conde
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | - João Serôdio
- Centre for Environmental and Marine Studies (CESAM), Department of Biology, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - Ric C H De Vos
- Business Unit Bioscience, Wageningen Plant Research, Wageningen University and Research Centre (Wageningen-UR), P.O. Box 16, 6700 AA Wageningen, The Netherlands
| | - Ana Cunha
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
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Garrido A, Conde A, De Vos RCH, Cunha A. The influence of light microclimate on the lipid profile and associated transcripts of photosynthetically active grape berry seeds. Front Plant Sci 2023; 13:1022379. [PMID: 36684778 PMCID: PMC9846335 DOI: 10.3389/fpls.2022.1022379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Accepted: 11/30/2022] [Indexed: 06/17/2023]
Abstract
Lipids and oils determine the quality and industrial value of grape seeds. Studies with legume seeds demonstrated the influence of light on lipid metabolism and its association with seed photosynthesis. Grape berry seeds are photosynthetically active till mature stage, but mostly during the green stage and veraison. The objective of this work was to compare the lipid profiles of seeds from white grape berries (cv. Alvarinho) growing at two contrasting light microclimates in the canopy (low and high light, LL and HL respectively), previously reported to have distinct photosynthetic competences. Berries were collected at three developmental stages (green, veraison and mature) and from both microclimates, and the seeds were analyzed for their lipid profiles in an untargeted manner using liquid chromatography coupled to high resolution mass spectrometry (LCMS). The seed lipid profiles differed greatly among berry developmental stages, and to a lesser extend between microclimates. The LL microclimate coincided with a higher relative levels of fatty acids specifically at mature stage, while the HL microclimate led to an up-regulation of ceramides at green stage and of triacylglycerols and glycerophospholipids at mature stage. The seed transcript levels of four key genes (VvACCase1, VvΔ9FAD, VvFAD6 and VvLOXO) involved in fatty acid metabolism were analyzed using real-time qPCR. The lipoxygenase gene (VvLOXO) was down- and up-regulated by HL, as compared to LL, in seeds at green and veraison stages, respectively. These results suggest that seed photosynthesis may play distinct roles during seed growth and development, possibly by fueling different lipid pathways: at green stage mainly towards the accumulation of membrane-bound lipid species that are essential for cell growth and maintenance of the photosynthetic machinery itself; and at veraison and mature stages mainly towards storage lipids that contribute to the final quality of the grape seeds.
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Affiliation(s)
- Andreia Garrido
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho, Braga, Portugal
| | - Artur Conde
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho, Braga, Portugal
| | - Ric C. H. De Vos
- Business Unit Bioscience, Wageningen Plant Research, Wageningen University and Research (Wageningen-UR), Wageningen, Netherlands
| | - Ana Cunha
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho, Braga, Portugal
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Badim H, Vale M, Coelho M, Granell A, Gerós H, Conde A. Constitutive expression of VviNAC17 transcription factor significantly induces the synthesis of flavonoids and other phenolics in transgenic grape berry cells. Front Plant Sci 2022; 13:964621. [PMID: 35968093 PMCID: PMC9372392 DOI: 10.3389/fpls.2022.964621] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 07/08/2022] [Indexed: 05/29/2023]
Abstract
VviNAC17 is a grapevine transcription factor activated by ABA. Because ABA has been proposed as the main signal modulating the secondary metabolism in grape berry skins, here we postulated VviNAC17 as a positive regulator of secondary metabolism in grape cells. To validate the hypothesis, VviNAC17 was constitutively and stably overexpressed in grape berry suspension-cultured cells of Gamay Fréaux cv. by Agrobacterium-mediated transformation. Targeted transcriptional analyses by qPCR showed that several genes involved the phenylpropanoid (VviPAL1), stilbenoid (VviSTS1) and flavonoid pathways (VviDFR, VviLAR1, VviANR, VviLDOX, and VviUFGT1), as well as anthocyanin vacuolar transport and accumulation (VviGST4 and VvMATE1) were significantly upregulated in VviNAC17-overexpressing transgenic cells, which translated in the stimulation of a number of enzymatic activities in those pathways. This was the case of phenylalanine ammonia lyase (PAL) and UDP-glucose:flavonoid 3-O-glucosyltransferase (UFGT) that were about 2-fold and 3.5-fold higher in VviNAC17-overexpressing cells than in control cells. VviNAC17-overexpressing cells accumulated significantly higher amounts of anthocyanins, proanthocyanidins, total flavonoids and total phenolics. These findings confirmed that VviNAC17 is an important positive regulator of secondary metabolism in grapevine contributing to the accumulation of important berry quality-related secondary metabolites.
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Affiliation(s)
- Hélder Badim
- Department of Biology, Centre of Molecular and Environmental Biology, University of Minho, Braga, Portugal
| | - Mariana Vale
- Department of Biology, Centre of Molecular and Environmental Biology, University of Minho, Braga, Portugal
| | - Marco Coelho
- Department of Biology, Centre of Molecular and Environmental Biology, University of Minho, Braga, Portugal
| | - Antonio Granell
- Institute of Molecular and Cellular Biology of Plants, Spanish National Research Council (CSIC), Polytechnic University of Valencia, Valencia, Spain
| | - Hernâni Gerós
- Department of Biology, Centre of Molecular and Environmental Biology, University of Minho, Braga, Portugal
- Department of Biological Engineering, Centre of Biological Engineering, University of Minho, Braga, Portugal
| | - Artur Conde
- Department of Biology, Centre of Molecular and Environmental Biology, University of Minho, Braga, Portugal
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Vale M, Rodrigues J, Badim H, Gerós H, Conde A. Exogenous Application of Non-mature miRNA-Encoded miPEP164c Inhibits Proanthocyanidin Synthesis and Stimulates Anthocyanin Accumulation in Grape Berry Cells. Front Plant Sci 2021; 12:706679. [PMID: 34675946 PMCID: PMC8523857 DOI: 10.3389/fpls.2021.706679] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Accepted: 09/15/2021] [Indexed: 05/20/2023]
Abstract
Secondary metabolic pathways in grape berries are tightly regulated by an array of molecular mechanisms, including microRNA-mediated post-transcriptional regulation. As recently discovered, before being processed into mature microRNAs (miRNAs), the primary transcripts of miRNAs (pri-miRNAs) can encode for small miRNA-encoded peptides (micropeptides - miPEPs) that ultimately lead to an accentuated downregulation of the respective miRNA-targeted genes. Although few studies about miPEPs are available, the discovery of miPEPs reveals a new layer of gene regulation at the post-transcriptional level that opens the possibility to regulate plant metabolism without resorting to gene manipulation. Here, we identified a miPEP encoded in non-mature miR164c putatively targeting grapevine transcription factor VvMYBPA1 (miPEP164c/miPEP-MYBPA1), a positive regulator of key genes in the proanthocyanidin (PA)-biosynthetic pathway, a pathway that competes directly for substrate with the anthocyanin-biosynthetic pathway. Thus, the objective of this work was to test the hypothesis that the exogenous application of miPEP164c (miPEP-MYBPA1) can modulate the secondary metabolism of grape berry cells by inhibiting PA biosynthetic pathway while simultaneously stimulating anthocyanin synthesis. The exogenous application of miPEP164c to suspension-cultured cells from grape berry (cv. Gamay) enhanced the transcription of its corresponding non-mature miR164c, with a maximum effect at 1 μM and after a period of 10 days, thus leading to a more pronounced post-transcriptional silencing of its target VvMYBPA1. This led to a significant inhibition of the PA pathway, mostly via inhibition of leucoanthocyanidin reductase (LAR) and anthocyanidin reductase (ANR) enzymatic activities and VvLAR1 downregulation. In parallel, the anthocyanin-biosynthetic route was stimulated. Anthocyanin content was 31% higher in miPEP164c-treated cells, in agreement with the observed upregulation of VvUFGT1 transcripts and UFGT enzyme activity levels.
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Affiliation(s)
- Mariana Vale
- Department of Biology, Centre of Molecular and Environmental Biology, University of Minho, Braga, Portugal
| | - Jéssica Rodrigues
- Department of Biology, Centre of Molecular and Environmental Biology, University of Minho, Braga, Portugal
| | - Hélder Badim
- Department of Biology, Centre of Molecular and Environmental Biology, University of Minho, Braga, Portugal
| | - Hernâni Gerós
- Department of Biology, Centre of Molecular and Environmental Biology, University of Minho, Braga, Portugal
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences, University of Trás-os-Montes e Alto Douro, Vila Real, Portugal
- Department of Biological Engineering, Centre of Biological Engineering, University of Minho, Braga, Portugal
| | - Artur Conde
- Department of Biology, Centre of Molecular and Environmental Biology, University of Minho, Braga, Portugal
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences, University of Trás-os-Montes e Alto Douro, Vila Real, Portugal
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Marquez-Rodas I, Arance A, Berciano Guerrero M, Díaz Beveridge R, Alamo M, Garcia Castaño A, Gonzalez Cao M, Vidal J, Puertolas Hernandez T, Soria A, Aguado de la Rosa C, Sánchez Mauriño P, Valduvieco I, Delgado Rico R, Conde A, Foro P, Prada P, Puertas E, Alvarez Gonzalez A, Berrocal A. 1038MO Intracranial activity of encorafenib and binimetinib followed by radiotherapy in patients with BRAF mutated melanoma and brain metastasis: Preliminary results of the GEM1802/EBRAIN-MEL phase II clinical trial. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.1423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Garrido A, De Vos RCH, Conde A, Cunha A. Light Microclimate-Driven Changes at Transcriptional Level in Photosynthetic Grape Berry Tissues. Plants (Basel) 2021; 10:plants10091769. [PMID: 34579302 PMCID: PMC8465639 DOI: 10.3390/plants10091769] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Revised: 08/20/2021] [Accepted: 08/21/2021] [Indexed: 12/18/2022]
Abstract
Viticulture practices that change the light distribution in the grapevine canopy can interfere with several physiological mechanisms, such as grape berry photosynthesis and other metabolic pathways, and consequently impact the berry biochemical composition, which is key to the final wine quality. We previously showed that the photosynthetic activity of exocarp and seed tissues from a white cultivar (Alvarinho) was in fact responsive to the light microclimate in the canopy (low and high light, LL and HL, respectively), and that these different light microclimates also led to distinct metabolite profiles, suggesting a berry tissue-specific interlink between photosynthesis and metabolism. In the present work, we analyzed the transcript levels of key genes in exocarps and seed integuments of berries from the same cultivar collected from HL and LL microclimates at three developmental stages, using real-time qPCR. In exocarp, the expression levels of genes involved in carbohydrate metabolism (VvSuSy1), phenylpropanoid (VvPAL1), stilbenoid (VvSTS1), and flavan-3-ol synthesis (VvDFR, VvLAR2, and VvANR) were highest at the green stage. In seeds, the expression of several genes associated with both phenylpropanoid (VvCHS1 and VvCHS3) and flavan-3-ol synthesis (VvDFR and VvLAR2) showed a peak at the véraison stage, whereas that of RuBisCO was maintained up to the mature stage. Overall, the HL microclimate, compared to that of LL, resulted in a higher expression of genes encoding elements associated with both photosynthesis (VvChlSyn and VvRuBisCO), carbohydrate metabolism (VvSPS1), and photoprotection (carotenoid pathways genes) in both tissues. HL also induced the expression of the VvFLS1 gene, which was translated into a higher activity of the FLS enzyme producing flavonol-type flavonoids, whereas the expression of several other flavonoid pathway genes (e.g., VvCHS3, VvSTS1, VvDFR, and VvLDOX) was reduced, suggesting a specific role of flavonols in photoprotection of berries growing in the HL microclimate. This work suggests a possible link at the transcriptional level between berry photosynthesis and pathways of primary and secondary metabolism, and provides relevant information for improving the management of the light microenvironment at canopy level of the grapes.
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Affiliation(s)
- Andreia Garrido
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal;
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes e Alto Douro, Quinta de Prados, 5000-801 Vila Real, Portugal
- Correspondence: (A.G.); (A.C.)
| | - Ric C. H. De Vos
- Business Unit Bioscience, Wageningen Plant Research, Wageningen University and Research (Wageningen-UR), P.O. Box 16, 6700 AA Wageningen, The Netherlands;
| | - Artur Conde
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal;
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes e Alto Douro, Quinta de Prados, 5000-801 Vila Real, Portugal
| | - Ana Cunha
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal;
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes e Alto Douro, Quinta de Prados, 5000-801 Vila Real, Portugal
- Centre of Biological Engineering (CEB), University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
- Correspondence: (A.G.); (A.C.)
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Breia R, Conde A, Badim H, Fortes AM, Gerós H, Granell A. Plant SWEETs: from sugar transport to plant-pathogen interaction and more unexpected physiological roles. Plant Physiol 2021; 186:836-852. [PMID: 33724398 PMCID: PMC8195505 DOI: 10.1093/plphys/kiab127] [Citation(s) in RCA: 58] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Accepted: 03/05/2021] [Indexed: 05/19/2023]
Abstract
Sugars Will Eventually be Exported Transporters (SWEETs) have important roles in numerous physiological mechanisms where sugar efflux is critical, including phloem loading, nectar secretion, seed nutrient filling, among other less expected functions. They mediate low affinity and high capacity transport, and in angiosperms this family is composed by 20 paralogs on average. As SWEETs facilitate the efflux of sugars, they are highly susceptible to hijacking by pathogens, making them central players in plant-pathogen interaction. For instance, several species from the Xanthomonas genus are able to upregulate the transcription of SWEET transporters in rice (Oryza sativa), upon the secretion of transcription-activator-like effectors. Other pathogens, such as Botrytis cinerea or Erysiphe necator, are also capable of increasing SWEET expression. However, the opposite behavior has been observed in some cases, as overexpression of the tonoplast AtSWEET2 during Pythium irregulare infection restricted sugar availability to the pathogen, rendering plants more resistant. Therefore, a clear-cut role for SWEET transporters during plant-pathogen interactions has so far been difficult to define, as the metabolic signatures and their regulatory nodes, which decide the susceptibility or resistance responses, remain poorly understood. This fuels the still ongoing scientific question: what roles can SWEETs play during plant-pathogen interaction? Likewise, the roles of SWEET transporters in response to abiotic stresses are little understood. Here, in addition to their relevance in biotic stress, we also provide a small glimpse of SWEETs importance during plant abiotic stress, and briefly debate their importance in the particular case of grapevine (Vitis vinifera) due to its socioeconomic impact.
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Affiliation(s)
- Richard Breia
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho, Braga 4710-057, Portugal
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes e Alto Douro, Vila Real 5001-801, Portugal
| | - Artur Conde
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho, Braga 4710-057, Portugal
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes e Alto Douro, Vila Real 5001-801, Portugal
- Author for communication:
| | - Hélder Badim
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho, Braga 4710-057, Portugal
| | - Ana Margarida Fortes
- Lisbon Science Faculty, BioISI, University of Lisbon, Campo Grande, Lisbon 1749-016, Portugal
| | - Hernâni Gerós
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho, Braga 4710-057, Portugal
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes e Alto Douro, Vila Real 5001-801, Portugal
- Centre of Biological Engineering (CEB), Department of Engineering, University of Minho, Braga 4710-057, Portugal
| | - Antonio Granell
- Institute of Molecular and Cellular Biology of Plants, Spanish National Research Council (CSIC), Polytechnic University of Valencia, Valencia 46022, Spain
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Garrido A, Engel J, Mumm R, Conde A, Cunha A, De Vos RCH. Metabolomics of Photosynthetically Active Tissues in White Grapes: Effects of Light Microclimate and Stress Mitigation Strategies. Metabolites 2021; 11:metabo11040205. [PMID: 33808188 PMCID: PMC8067353 DOI: 10.3390/metabo11040205] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 03/19/2021] [Accepted: 03/26/2021] [Indexed: 12/17/2022] Open
Abstract
The effects of climate change are becoming a real concern for the viticulture sector, with impacts on both grapevine physiology and the quality of the fresh berries and wine. Short-term mitigation strategies, like foliar kaolin application and smart irrigation regimes, have been implemented to overcome these problems. We previously showed that these strategies also influence the photosynthetic activity of the berries themselves, specifically in the exocarp and seed. In the present work, we assessed the modulating effects of both canopy-light microclimate, kaolin and irrigation treatments on the metabolic profiles of the exocarp and seed, as well as the potential role of berry photosynthesis herein. Berries from the white variety Alvarinho were collected at two contrasting light microclimate positions within the vine canopy (HL—high light and LL—low light) from both irrigated and kaolin-treated plants, and their respective controls, at three fruit developmental stages (green, véraison and mature). Untargeted liquid chromatography mass spectrometry (LCMS) profiling of semi-polar extracts followed by multivariate statistical analysis indicate that both the light microclimate and irrigation influenced the level of a series of phenolic compounds, depending on the ripening stage of the berries. Moreover, untargeted gas chromatography mass spectrometry (GCMS) profiling of polar extracts show that amino acid and sugar levels were influenced mainly by the interaction of irrigation and kaolin treatments. The results reveal that both photosynthetically active berry tissues had a distinct metabolic profile in response to the local light microclimate, which suggests a specific role of photosynthesis in these tissues. A higher light intensity within the canopy mainly increased the supply of carbon precursors to the phenylpropanoid/flavonoid pathway, resulting in increased levels of phenolic compounds in the exocarp, while in seeds, light mostly influenced compounds related to carbon storage and seed development. In addition, our work provides new insights into the influence of abiotic stress mitigation strategies on the composition of exocarps and seeds, which are both important tissues for the quality of grape-derived products.
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Affiliation(s)
- Andreia Garrido
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal;
- Correspondence: (A.G.); (A.C.)
| | - Jasper Engel
- Business Unit Bioscience, Wageningen Plant Research, Wageningen University and Research (Wageningen-UR), P.O. Box 16, 6700 AA Wageningen, The Netherlands; (J.E.); (R.M.); (R.C.H.D.V.)
- Business Unit Biometris, Wageningen Plant Research, Wageningen University and Research (Wageningen-UR), P.O. Box 16, 6700 AA Wageningen, The Netherlands
| | - Roland Mumm
- Business Unit Bioscience, Wageningen Plant Research, Wageningen University and Research (Wageningen-UR), P.O. Box 16, 6700 AA Wageningen, The Netherlands; (J.E.); (R.M.); (R.C.H.D.V.)
| | - Artur Conde
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal;
- Centre of Molecular and Environmental Biology (CBMA), University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | - Ana Cunha
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal;
- Centre of Molecular and Environmental Biology (CBMA), University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
- Centre of Biological Engineering (CEB), University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
- Correspondence: (A.G.); (A.C.)
| | - Ric C. H. De Vos
- Business Unit Bioscience, Wageningen Plant Research, Wageningen University and Research (Wageningen-UR), P.O. Box 16, 6700 AA Wageningen, The Netherlands; (J.E.); (R.M.); (R.C.H.D.V.)
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Martin E, Celada Alvarez F, Perez Calatayud M, Farga L, Rodriguez Pla M, Prato O, Germain J, Chimeno J, Roldán S, Martinez F, Pons O, Collado E, Bernisz M, Macías V, Gimeno J, Carmona V, Lliso F, Ruiz J, Perez Calatayud J, Tormo A, Conde A. PO-1290: 100% peer review in radiation oncology. Is it feasible? Radiother Oncol 2020. [DOI: 10.1016/s0167-8140(21)01308-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Breia R, Conde A, Conde C, Fortes AM, Granell A, Gerós H. VvERD6l13 is a grapevine sucrose transporter highly up-regulated in response to infection by Botrytis cinerea and Erysiphe necator. Plant Physiol Biochem 2020; 154:508-516. [PMID: 32688295 DOI: 10.1016/j.plaphy.2020.06.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Accepted: 06/02/2020] [Indexed: 05/23/2023]
Abstract
The Early-Response to Dehydration six-like (ERD6l) is one of the largest families of sugar transporters in plants, however, is also one of the less studied with very few members characterized. In this work, we identified 18 members of the grapevine ERD6l family, analyzed their promoters and putative topology and additionally functionally characterized the member VvERD6l13. VvERD6l13 was strongly up-regulated in grape berries infected with Botrytis cinerea and Erysiphe necator in cv. Trincadeira and Carignan, respectively, suggesting an important role in grape berry-pathogen interaction, as we had hypothesized. In Cabernet Sauvignon Berry suspension cultured cells, VvERD6l13 was also up-regulated, by 4-fold, 48 h after elicitation with mycelium extract of B. cinerea. Besides being expressed in grape berries from various developmental stages, VvERD6l13 is also expressed in leaves, canes, flowers and, noticeably, in roots. Using tobacco and an hxt-null Saccharomyces cerevisiae strain as heterologous expression models, we showed that VvERD6l13 is localized at the plasma membrane and mediates the H+-dependent transport of sucrose (Km = 33 mM) thus confirming VvERD6l13 as a bona fide sugar transporter involved in sugar mobilization in grapevine and transcriptionally induced in response to biotic stress.
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Affiliation(s)
- Richard Breia
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho, 4710-057, Braga, Portugal; Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes e Alto Douro, Vila Real, Portugal
| | - Artur Conde
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho, 4710-057, Braga, Portugal; Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes e Alto Douro, Vila Real, Portugal.
| | - Carlos Conde
- i3S-Institute of Research and Innovation in Health, University of Porto, 4200-135, Porto, Portugal; IBMC-Institute for Molecular and Cell Biology, University of Porto, 4200-135, Porto, Portugal
| | - Ana Margarida Fortes
- University of Lisbon, Lisbon Science Faculty, BioISI, Campo Grande, 1749-016, Lisbon, Portugal
| | - Antonio Granell
- Institute of Molecular and Cellular Biology of Plants, Spanish National Research Council (CSIC), Polytechnic University of Valencia, Valencia, Spain
| | - Hernâni Gerós
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho, 4710-057, Braga, Portugal; Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes e Alto Douro, Vila Real, Portugal
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Carles J, Alcaraz A, Clarke N, Conde A, Heidenreich A, Juarez A, Maroto Rey J, Puente J, Hernandez-Medrano I, Salcedo I, Haddad I, Munoz del Toro J, Servan A, Pissart G, Casariego J, Fizazi K. 695TiP ORACULUM: A retrospective observational epidemiological study using artificial intelligence and natural language processing in electronic health records to characterize the prostate cancer pathway, management and outcomes in Europe, Middle East and Africa (EMEA region). Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.2089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Valero J, Peleteiro P, Henríquez I, Conde A, Piquer T, Lozano A, Soler CC, Muñoz J, Illescas A, Jove J, Flores MM, Baquedano J, Diezhandino P, de Celis RP, Pardo EH, Samper P, Villoslada I, Eguiguren M, Millan V. Age, Gleason Score, and PSA are important prognostic factors for survival in metastatic castration-resistant prostate cancer. Results of The Uroncor Group (Uro-Oncological Tumors) of the Spanish Society of Radiation Oncology (SEOR). Clin Transl Oncol 2020; 22:1378-1389. [PMID: 31989474 DOI: 10.1007/s12094-019-02274-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2019] [Accepted: 12/16/2019] [Indexed: 12/14/2022]
Abstract
INTRODUCTION The treatment of metastatic castration-resistant prostate cancer (mCRPC) has changed significantly in recent years. Inhibitors of androgen receptors have shown especially significant benefits in overall (OS) and progression-free survival (PFS), with a good toxicity profile. Treatment selection depends on the patient's individual clinical, radiological, and biological characteristics. OBJECTIVE To describe treatment outcomes (efficacy, toxicity) in a cohort of patients with mCRPC in Spain. MATERIALS AND METHODS Multicenter, retrospective study of patients with mCRPC included in a database of the Urological Tumour Working Group (URONCOR) of the Spanish Society of Radiation Oncology (SEOR). Metastatic CRPC was defined according to the prostate cancer working group 3 (PCWG3) criteria. The Kaplan-Meier technique was used to evaluate OS and the Common Terminology Criteria for Adverse Events (CTCAE, v.4.0) were used to assess toxicity. Univariate and multivariate Cox regression analyses were performed to identify the factors significantly associated with OS. RESULTS A total of 314 patients from 17 hospitals in Spain diagnosed with mCRPC between June 2010 and September 2017 were included in this study. Mean age at diagnosis was 68 years (range 45-89). At a median follow-up of 35 months, OS at 1, 3, and 5 years were 92%, 38%, and 28%, respectively. Grades 1-2 and grade 3 toxicity rates were, respectively, 68% and 19%. No grade 4 toxicities were observed. On the multivariate analysis, the following factors were significantly associated with OS: age (hazard ratio [HR] 0.42, p = 0.010), PSA value at diagnosis of mCRPC (HR 0.55, p = 0.008), and Gleason score (HR 0.61, p = 0.009). CONCLUSIONS Age, Gleason score, and PSA at diagnosis of mCRPC are independently associated with overall survival in patients with mCRPC. The efficacy and toxicity outcomes in this patient cohort treated in radiation oncology departments in Spain are consistent with previous reports.
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Affiliation(s)
- J Valero
- Hospital Universitario HM Sanchinarro, Madrid, Spain.
| | - P Peleteiro
- Hospital Clinico Universitario de Santiago de Compostela, Santiago, Spain
| | - I Henríquez
- Hospital Universitario Sant Joan de Reus, Tarragona, Spain
| | - A Conde
- Hospital La Fe de Valencia, Valencia, Spain
| | - T Piquer
- Hospital de Castellon, Castellón, Spain
| | - A Lozano
- Hospital Virgen de la Arrixaca de Murcia, El Palmar, Spain
| | - C C Soler
- Hospital Torrecardenas Almeria, Almería, Spain
| | - J Muñoz
- Hospital Universitario Infanta Cristina de Badajoz, Badajoz, Spain
| | - A Illescas
- Hospital Virgen de la Macarena de Sevilla, Sevilla, Spain
| | - J Jove
- Instituto Catalan de Oncologia Badalona, Barcelona, Spain
| | - M M Flores
- Hospital Universitario Arnau de Vilanova, Lleida, Spain
| | - J Baquedano
- Hospital Universitario Arnau de Vilanova, Lleida, Spain
| | - P Diezhandino
- Hospital Clinico Universitario de Valladolid, Valladolid, Spain
| | - R P de Celis
- Hospital Txagorritxu de Vitoria, Vitoria-Gasteiz, Spain
| | - E H Pardo
- Hospital Txagorritxu de Vitoria, Vitoria-Gasteiz, Spain
| | - P Samper
- Hospital Universitario Rey Juan Carlos de Mostoles, Madrid, Spain
| | | | - M Eguiguren
- Hospital Universitario Donostia, Donostia-San Sebastian, Spain
| | - V Millan
- Hospital Clinico Universitario de Zaragoza, Zaragoza, Spain
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Breia R, Conde A, Pimentel D, Conde C, Fortes AM, Granell A, Gerós H. VvSWEET7 Is a Mono- and Disaccharide Transporter Up-Regulated in Response to Botrytis cinerea Infection in Grape Berries. Front Plant Sci 2020; 10:1753. [PMID: 32047506 PMCID: PMC6996298 DOI: 10.3389/fpls.2019.01753] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Accepted: 12/13/2019] [Indexed: 05/24/2023]
Abstract
The newly-identified SWEETs are high-capacity, low-affinity sugar transporters with important roles in numerous physiological mechanisms where sugar efflux is critical. SWEETs are desirable targets for manipulation by pathogens and their expression may be transcriptionally reprogrammed during infection. So far, few plant SWEET transporters have been functionally characterized, especially in grapevine. In this study, in the Botrytis-susceptible variety "Trincadeira," we thoroughly analyzed modifications in the gene expression profile of key SWEET genes in Botrytis cinerea-infected grape berries. VvSWEET7 and VvSWEET15 are likely to play an important role during fruit development and Botrytis infection as they are strongly expressed at the green and mature stage, respectively, and were clearly up-regulated in response to infection. Also, B. cinerea infection down-regulated VvSWEET17a expression at the green stage, VvSWEET10 and VvSWEET17d expression at the veraison stage, and VvSWEET11 expression at the mature stage. VvSWEET7 was functionally characterized by heterologous expression in Saccharomyces cerevisiae as a low-affinity, high-capacity glucose and sucrose transporter with a K m of 15.42 mM for glucose and a K m of 40.08 mM for sucrose. VvSWEET7-GFP and VvSWEET15-GFP fusion proteins were transiently expressed in Nicotiana benthamiana epidermal cells and confocal microscopy allowed to observe that both proteins clearly localize to the plasma membrane. In sum, VvSWEETs transporters are important players in sugar mobilization during grape berry development and their expression is transcriptionally reprogrammed in response to Botrytis infection.
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Affiliation(s)
- Richard Breia
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho, Braga, Portugal
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes e Alto Douro, Vila Real, Portugal
| | - Artur Conde
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho, Braga, Portugal
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes e Alto Douro, Vila Real, Portugal
| | - Diana Pimentel
- University of Lisbon, Lisbon Science Faculty, BioISI, Campo Grande, Lisbon, Portugal
| | - Carlos Conde
- i3S-Institute of Research and Innovation in Health, University of Porto, Porto, Portugal
- IBMC-Institute for Molecular and Cell Biology, University of Porto, Porto, Portugal
| | - Ana Margarida Fortes
- University of Lisbon, Lisbon Science Faculty, BioISI, Campo Grande, Lisbon, Portugal
| | - Antonio Granell
- Institute of Molecular and Cellular Biology of Plants, Spanish National Research Council (CSIC), Polytechnic University of Valencia, Valencia, Spain
| | - Hernâni Gerós
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho, Braga, Portugal
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes e Alto Douro, Vila Real, Portugal
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Espinoza SE, Orsak B, Wang CP, MacCarthy D, Kellogg D, Powers B, Conde A, Moris M, Padala PR, Padala KP. An Individualized Low-Intensity Walking Clinic Leads to Improvement in Frailty Characteristics in Older Veterans. J Frailty Aging 2019; 8:205-209. [PMID: 31637407 DOI: 10.14283/jfa.2019.16] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
BACKGROUND Sedentary lifestyle leads to worse health outcomes with aging, including frailty. Older adults can benefit from regular physical activity, but exercise promotion in the clinical setting is challenging. OBJECTIVES The objective of this clinical demonstration project was to implement a Geriatric Walking Clinic for older adults and determine whether this clinical program can lead to improvements in characteristics of frailty. DESIGN This was a clinical demonstration project/quality improvement project. SETTING Outpatient geriatrics clinic at the South Texas Veterans Health Care System (STVHCS). PARTICIPANTS Older Veterans, aged ≥60 years. INTERVENTION A 6-week structured walking program, delivered by a registered nurse and geriatrician. Patients received a pedometer and a comprehensive safety evaluation at an initial face-to-face visit. They were subsequently followed with weekly phone calls and participated in a final face-to-face follow-up visit at 6 weeks. MEASUREMENTS Grip strength (handheld dynamometer), gait speed (10-ft walk), Timed Up and Go (TUG), and body mass index (BMI) were assessed at baseline and follow-up. Frailty status for gait speed was assessed using Fried criteria. RESULTS One hundred eighty five patients completed the program (mean age: 68.4 ±7 years, 88% male). Improvements from baseline to follow-up were observed in average steps/day, gait speed, TUG, and BMI. Improvement in gait speed (1.13 ±0.20 vs. 1.24 ± 0.23 meter/second, p<0.0001) resulted in reduced odds of meeting frailty criteria for slow gait at follow-up compared to the baseline examination (odds ratio = 0.31, 95% confidence interval: 0.13-0.72, p = 0.01). CONCLUSIONS Our findings demonstrate that a short duration, low-intensity walking intervention improves gait speed and TUG. This new clinical model may be useful for the promotion of physical activity, and for the prevention or amelioration of frailty characteristics in older adults.
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Affiliation(s)
- S E Espinoza
- Sara Espinoza, MD, 7703 Floyd Curl Drive, Mail Code 7875, San Antonio, TX 78223, Telephone: 210-617-5197, E-mail: , FAX: 210-949-3060
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Rodríguez A, Arenas M, Lara PC, López-Torrecilla J, Algara M, Conde A, Pérez-Montero H, Muñoz JL, Peleteiro P, Pérez-Calatayud MJ, Contreras J, Ferrer C. Are there enough radiation oncologists to lead the new Spanish radiotherapy? Clin Transl Oncol 2019; 21:1663-1672. [DOI: 10.1007/s12094-019-02095-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Accepted: 03/18/2019] [Indexed: 11/29/2022]
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Grau Amorós J, Formiga F, Aramburu Bodas O, Armengou Arxe A, Conde Martel A, Quesada Simón M, Oropesa Juanes R, Satué Bartolomé J, Dávila Ramos M, Montero Pérez-Barquero M, Anarte L, Aramburu O, Arévalo-Lorido J, Armengou A, Brase A, Carrascosa S, Carrera M, Casado J, Cerqueiro J, Conde A, Dávila M, Díez-Manglano J, Epelde F, Formiga F, Franco J, Gallego J, García-Escrivá D, González-Franco A, Grau J, Guisado M, Herrero A, Llacer P, López-Castellanos G, Manzano L, Martínez-Zapico A, Montero-Pérez-Barquero M, Muela A, Oropesa R, Pérez-Bocanegra C, Pérez-Calvo J, Pérez-Silvestre J, Quesada M, Quirós R, Rodríguez-Ávila E, Ruiz-Laiglesia F, Ruiz-Ortega R, Salamanca P, Sánchez-Marteles M, Satué J, Serrado A, Suárez I, Trullàs J. Hemoconcentración como predictor de supervivencia al año de ingreso por insuficiencia cardiaca aguda en el registro RICA. Rev Clin Esp 2019; 219:1-9. [DOI: 10.1016/j.rce.2018.07.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Revised: 07/05/2018] [Accepted: 07/06/2018] [Indexed: 02/04/2023]
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Grau Amorós J, Formiga F, Aramburu Bodas O, Armengou Arxe A, Conde Martel A, Quesada Simón M, Oropesa Juanes R, Satué Bartolomé J, Dávila Ramos M, Montero Pérez-Barquero M, Anarte L, Aramburu O, Arévalo-Lorido J, Armengou A, Brase A, Carrascosa S, Carrera M, Casado J, Cerqueiro J, Conde A, Dávila M, Díez-Manglano J, Epelde F, Formiga F, Franco J, Gallego J, García-Escrivá D, González-Franco A, Grau J, Guisado M, Herrero A, Llacer P, López-Castellanos G, Manzano L, Martínez-Zapico A, Montero-Pérez-Barquero M, Muela A, Oropesa R, Pérez-Bocanegra C, Pérez-Calvo J, Pérez-Silvestre J, Quesada M, Quirós R, Rodríguez-Ávila E, Ruiz-Laiglesia F, Ruiz-Ortega R, Salamanca P, Sánchez-Marteles M, Satué J, Serrado A, Suárez I, Trullàs J. Hemoconcentration as a prognostic factor after hospital discharge in acute heart failure in the RICA registry. Rev Clin Esp 2019. [DOI: 10.1016/j.rceng.2018.07.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Conde A, Neves A, Breia R, Pimentel D, Dinis LT, Bernardo S, Correia CM, Cunha A, Gerós H, Moutinho-Pereira J. Kaolin particle film application stimulates photoassimilate synthesis and modifies the primary metabolome of grape leaves. J Plant Physiol 2018; 223:47-56. [PMID: 29486461 DOI: 10.1016/j.jplph.2018.02.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Revised: 02/02/2018] [Accepted: 02/04/2018] [Indexed: 05/20/2023]
Abstract
Water scarcity is associated with extreme temperatures and high irradiance, and significantly and increasingly affects grapevine yield and quality. In this context, the foliar application of kaolin, a chemically inert mineral that greatly reflects ultraviolet and infrared radiations, as well as, in part, photosynthetically active radiation, has recently been shown to decrease photoinhibition in mature leaves. Here, the influence of this particle film on grapevine leaf metabolome and carbohydrate metabolism was evaluated. Molecular mechanisms underlying photoassimilate synthesis, metabolism and transport capacity were assessed by targeted transcriptional analyses and enzymatic activity assays. Kaolin application increased sucrose concentration in leaves and sucrose transport/phloem loading capacity, as suggested by the stimulation of the transcription of sucrose transporters VvSUC12 and VvSUC27 in these source organs. While the biosynthesis of sucrose increased, as evidenced by higher sucrose content and sucrose phosphate synthase (SPS) activity in leaves, the concentration of transitory starch before the dark period remained unaltered, despite a higher total amylolytic activity in the leaves of kaolin-treated plants. Metabolomic analysis by GC-TOF-MS showed that the application of kaolin enhanced the amounts of simple sugars, including fructose, maltose, xylulose, xylose, sophorose, ribose and erythrose; sugars-phosphate, like mannose-6-Pi, hexose-6-Pi, glucose-6-Pi, glucose-1-Pi, glycerol-α-Pi and fructose-6-Pi; polyols, like xylitol, maltitol, lactitol, glycerol, galactinol and erythritol; organic acids and amino acids.
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Affiliation(s)
- Artur Conde
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho, 4710-057 Braga, Portugal; Grupo de Investigação em Biologia Vegetal Aplicada e Inovação Agroalimentar (AgroBioPlant/CITAB-UM), Departamento de Biologia, Universidade do Minho, 4710-057 Braga, Portugal; Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes e Alto Douro, Vila Real, Portugal; Centre of Biological Engineering (CEB), Department of Biological Engineering, University of Minho, Braga, Portugal.
| | - Andreia Neves
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho, 4710-057 Braga, Portugal; Grupo de Investigação em Biologia Vegetal Aplicada e Inovação Agroalimentar (AgroBioPlant/CITAB-UM), Departamento de Biologia, Universidade do Minho, 4710-057 Braga, Portugal
| | - Richard Breia
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho, 4710-057 Braga, Portugal; Grupo de Investigação em Biologia Vegetal Aplicada e Inovação Agroalimentar (AgroBioPlant/CITAB-UM), Departamento de Biologia, Universidade do Minho, 4710-057 Braga, Portugal
| | - Diana Pimentel
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho, 4710-057 Braga, Portugal; Grupo de Investigação em Biologia Vegetal Aplicada e Inovação Agroalimentar (AgroBioPlant/CITAB-UM), Departamento de Biologia, Universidade do Minho, 4710-057 Braga, Portugal
| | - Lia-Tânia Dinis
- Grupo de Investigação em Biologia Vegetal Aplicada e Inovação Agroalimentar (AgroBioPlant/CITAB-UM), Departamento de Biologia, Universidade do Minho, 4710-057 Braga, Portugal
| | - Sara Bernardo
- Grupo de Investigação em Biologia Vegetal Aplicada e Inovação Agroalimentar (AgroBioPlant/CITAB-UM), Departamento de Biologia, Universidade do Minho, 4710-057 Braga, Portugal
| | - Carlos Manuel Correia
- Grupo de Investigação em Biologia Vegetal Aplicada e Inovação Agroalimentar (AgroBioPlant/CITAB-UM), Departamento de Biologia, Universidade do Minho, 4710-057 Braga, Portugal
| | - Ana Cunha
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho, 4710-057 Braga, Portugal; Grupo de Investigação em Biologia Vegetal Aplicada e Inovação Agroalimentar (AgroBioPlant/CITAB-UM), Departamento de Biologia, Universidade do Minho, 4710-057 Braga, Portugal; Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes e Alto Douro, Vila Real, Portugal
| | - Hernâni Gerós
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho, 4710-057 Braga, Portugal; Grupo de Investigação em Biologia Vegetal Aplicada e Inovação Agroalimentar (AgroBioPlant/CITAB-UM), Departamento de Biologia, Universidade do Minho, 4710-057 Braga, Portugal; Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes e Alto Douro, Vila Real, Portugal; Centre of Biological Engineering (CEB), Department of Biological Engineering, University of Minho, Braga, Portugal
| | - José Moutinho-Pereira
- Grupo de Investigação em Biologia Vegetal Aplicada e Inovação Agroalimentar (AgroBioPlant/CITAB-UM), Departamento de Biologia, Universidade do Minho, 4710-057 Braga, Portugal
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Martinez-Perez M, Perez-Jorge C, Lozano D, Portal-Nuñez S, Perez-Tanoira R, Conde A, Arenas MA, Hernandez-Lopez JM, de Damborenea JJ, Gomez-Barrena E, Esbrit P, Esteban J. Evaluation of bacterial adherence of clinical isolates of Staphylococcus sp. using a competitive model: An in vitro approach to the "race for the surface" theory. Bone Joint Res 2017; 6:315-322. [PMID: 28522445 PMCID: PMC5457649 DOI: 10.1302/2046-3758.65.bjr-2016-0226.r2] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Accepted: 02/06/2017] [Indexed: 01/08/2023] Open
Abstract
Objectives Implant-related infection is one of the most devastating complications in orthopaedic surgery. Many surface and/or material modifications have been developed in order to minimise this problem; however, most of the in vitro studies did not evaluate bacterial adhesion in the presence of eukaryotic cells, as stated by the ‘race for the surface’ theory. Moreover, the adherence of numerous clinical strains with different initial concentrations has not been studied. Methods We describe a method for the study of bacterial adherence in the presence of preosteoblastic cells. For this purpose we mixed different concentrations of bacterial cells from collection and clinical strains of staphylococci isolated from implant-related infections with preosteoblastic cells, and analysed the minimal concentration of bacteria able to colonise the surface of the material with image analysis. Results Our results show that clinical strains adhere to the material surface at lower concentrations than collection strains. A destructive effect of bacteria on preosteoblastic cells was also detected, especially with higher concentrations of bacteria. Conclusions The method described herein can be used to evaluate the effect of surface modifications on bacterial adherence more accurately than conventional monoculture studies. Clinical strains behave differently than collection strains with respect to bacterial adherence. Cite this article: M. Martinez-Perez, C. Perez-Jorge, D. Lozano, S. Portal-Nuñez, R. Perez-Tanoira, A. Conde, M. A. Arenas, J. M. Hernandez-Lopez, J. J. de Damborenea, E. Gomez-Barrena, P. Esbrit, J. Esteban. Evaluation of bacterial adherence of clinical isolates of Staphylococcus sp. using a competitive model: An in vitro approach to the “race for the surface” theory. Bone Joint Res 2017;6:315–322. DOI: 10.1302/2046-3758.65.BJR-2016-0226.R2.
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Affiliation(s)
- M Martinez-Perez
- Department of Clinical Microbiology, IIS-Fundación Jimènez Díaz, UAM, Madrid, Spain
| | - C Perez-Jorge
- Department of Clinical Microbiology, IIS-Fundación Jimènez Díaz, UAM, Madrid, Spain
| | - D Lozano
- IIS-Fundación Jimènez Díaz UAM, Cooperative Research Thematic Network on Aging and Frailty (RETICEF), Madrid, Spain
| | - S Portal-Nuñez
- IIS-Fundación Jimènez Díaz UAM, Cooperative Research Thematic Network on Aging and Frailty (RETICEF), Madrid, Spain
| | - R Perez-Tanoira
- Department of Clinical Microbiology, IIS-Fundación Jimènez Díaz, UAM, Madrid, Spain
| | - A Conde
- Department of Surface Engineering Corrosion and Durability, National Centre for Metallurgical Research. (CENIM-CSIC) Avda. Gregorio del Amo, Madrid, Spain
| | - M A Arenas
- Department of Surface Engineering Corrosion and Durability, National Centre for Metallurgical Research. (CENIM-CSIC) Avda. Gregorio del Amo, Madrid, Spain
| | - J M Hernandez-Lopez
- Department of Surface Engineering Corrosion and Durability, National Centre for Metallurgical Research. (CENIM-CSIC) Avda. Gregorio del Amo, Madrid, Spain
| | - J J de Damborenea
- Department of Surface Engineering Corrosion and Durability, National Centre for Metallurgical Research. (CENIM-CSIC) Avda. Gregorio del Amo, Madrid, Spain
| | - E Gomez-Barrena
- Department of Orthopaedic Surgery, IdIPaz-Hospital Universitario La Paz. Universidad Autónoma de Madrid, Madrid, Spain
| | - P Esbrit
- IIS-Fundación Jimènez Díaz UAM, Cooperative Research Thematic Network on Aging and Frailty (RETICEF), Madrid, Spain
| | - J Esteban
- Department of Surface Engineering Corrosion and Durability. National Centre for Metallurgical Research, IIS-Fundación Jimènez Díaz, UAM, Madrid, Spain
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Estevez R, Conde A, Escorial A, De la Torre F, Cisneros R. Effectiveness of surfactants in irrigant penetration. J Clin Exp Dent 2017. [DOI: 10.4317/medoral.176438650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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22
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Romero-Muñiz C, Franco V, Conde A. Two different critical regimes enclosed in the Bean–Rodbell model and their implications for the field dependence and universal scaling of the magnetocaloric effect. Phys Chem Chem Phys 2017; 19:3582-3595. [DOI: 10.1039/c6cp06291a] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In the last few years power laws and universal scaling have been extensively used to study the field dependence of the magnitudes involved in the magnetocaloric effect of materials.
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Affiliation(s)
- C. Romero-Muñiz
- Departamento de Física Teórica de la Materia Condensada
- Universidad Autónoma de Madrid
- Madrid
- Spain
| | - V. Franco
- Departamento de Física de la Materia Condensada
- ICMSE-CSIC
- Universidad de Sevilla
- 41080 Sevilla
- Spain
| | - A. Conde
- Departamento de Física de la Materia Condensada
- ICMSE-CSIC
- Universidad de Sevilla
- 41080 Sevilla
- Spain
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Conde A, Pimentel D, Neves A, Dinis LT, Bernardo S, Correia CM, Gerós H, Moutinho-Pereira J. Kaolin Foliar Application Has a Stimulatory Effect on Phenylpropanoid and Flavonoid Pathways in Grape Berries. Front Plant Sci 2016; 7:1150. [PMID: 27551286 PMCID: PMC4976103 DOI: 10.3389/fpls.2016.01150] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Accepted: 07/18/2016] [Indexed: 05/17/2023]
Abstract
Drought, elevated air temperature, and high evaporative demand are increasingly frequent during summer in grape growing areas like the Mediterranean basin, limiting grapevine productivity and berry quality. The foliar exogenous application of kaolin, a radiation-reflecting inert mineral, has proven effective in mitigating the negative impacts of these abiotic stresses in grapevine and other fruit crops, however, little is known about its influence on the composition of the grape berry and on key molecular mechanisms and metabolic pathways notably important for grape berry quality parameters. Here, we performed a thorough molecular and biochemical analysis to assess how foliar application of kaolin influences major secondary metabolism pathways associated with berry quality-traits, leading to biosynthesis of phenolics and anthocyanins, with a focus on the phenylpropanoid, flavonoid (both flavonol- and anthocyanin-biosynthetic) and stilbenoid pathways. In grape berries from different ripening stages, targeted transcriptional analysis by qPCR revealed that several genes involved in these pathways-VvPAL1, VvC4H1, VvSTSs, VvCHS1, VvFLS1, VvDFR, and VvUFGT-were more expressed in response to the foliar kaolin treatment, particularly in the latter maturation phases. In agreement, enzymatic activities of phenylalanine ammonia lyase (PAL), flavonol synthase (FLS), and UDP-glucose:flavonoid 3-O-glucosyltransferase (UFGT) were about two-fold higher in mature or fully mature berries from kaolin-treated plants, suggesting regulation also at a transcriptional level. The expression of the glutathione S-transferase VvGST4, and of the tonoplast anthocyanin transporters VvMATE1 and VvABCC1 were also all significantly increased at véraison and in mature berries, thus, when anthocyanins start to accumulate in the vacuole, in agreement with previously observed higher total concentrations of phenolics and anthocyanins in berries from kaolin-treated plants, especially at full maturity stage. Metabolomic analysis by reverse phase LC-QTOF-MS confirmed several kaolin-induced modifications including a significant increase in the quantities of several secondary metabolites including flavonoids and anthocyanins in the latter ripening stages, probably resulting from the general stimulation of the phenylpropanoid and flavonoid pathways.
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Affiliation(s)
- Artur Conde
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences, University of Trás-os-Montes e Alto DouroVila Real, Portugal
- Grupo de Investigação em Biologia Vegetal Aplicada e Inovação Agroalimentar (AgroBioPlant), Departamento de Biologia, Universidade do MinhoBraga, Portugal
| | - Diana Pimentel
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences, University of Trás-os-Montes e Alto DouroVila Real, Portugal
- Grupo de Investigação em Biologia Vegetal Aplicada e Inovação Agroalimentar (AgroBioPlant), Departamento de Biologia, Universidade do MinhoBraga, Portugal
| | - Andreia Neves
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences, University of Trás-os-Montes e Alto DouroVila Real, Portugal
- Grupo de Investigação em Biologia Vegetal Aplicada e Inovação Agroalimentar (AgroBioPlant), Departamento de Biologia, Universidade do MinhoBraga, Portugal
| | - Lia-Tânia Dinis
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences, University of Trás-os-Montes e Alto DouroVila Real, Portugal
| | - Sara Bernardo
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences, University of Trás-os-Montes e Alto DouroVila Real, Portugal
| | - Carlos M. Correia
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences, University of Trás-os-Montes e Alto DouroVila Real, Portugal
| | - Hernâni Gerós
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences, University of Trás-os-Montes e Alto DouroVila Real, Portugal
- Grupo de Investigação em Biologia Vegetal Aplicada e Inovação Agroalimentar (AgroBioPlant), Departamento de Biologia, Universidade do MinhoBraga, Portugal
- Department of Biology, Centre of Molecular and Environmental Biology, University of MinhoBraga, Portugal
| | - José Moutinho-Pereira
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences, University of Trás-os-Montes e Alto DouroVila Real, Portugal
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Macías R, Inga E, Rodriguez R, Conde A, Vergara E, Arrobas Maria I, Rodriguez José R. P-230 Muir-Torre Syndrome diagnostic and screening. a single center experience. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw199.222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Dinis LT, Bernardo S, Conde A, Pimentel D, Ferreira H, Félix L, Gerós H, Correia CM, Moutinho-Pereira J. Kaolin exogenous application boosts antioxidant capacity and phenolic content in berries and leaves of grapevine under summer stress. J Plant Physiol 2016; 191:45-53. [PMID: 26717011 DOI: 10.1016/j.jplph.2015.12.005] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Revised: 12/08/2015] [Accepted: 12/09/2015] [Indexed: 05/20/2023]
Abstract
Heat waves, high light intensities and water deficit are becoming important threats in many important viticultural areas worldwide, so the implementation of efficient and cost-effective mitigation strategies is crucial for the production of premium wines while maintaining productivity. In this context, the foliar application of kaolin, a chemically inert mineral with excellent reflective properties, is being developed and experimented as a strategy to reduce the impact of heat and drought in Douro vineyards (Northern Portugal), already revealing promising results. In the present study we investigated if an improved antioxidant capacity is part of the beneficial effects of kaolin, by studying changes in the enzymatic and nonenzymatic antioxidant system in leaves and berries (cv Touriga Nacional). Results showed that mature grape berries contained higher amounts of total phenols (40%), flavonoids (24%), anthocyanins (32%) and vitamin C (12%) than fruits from control vines, and important changes were also measured in leaves. In parallel, kaolin application improved the antioxidant capacity in berries, which was correlated with the observed increased content in secondary metabolites. Kaolin application also regulated secondary metabolism at the transcriptional level through the increase in the transcript abundance of genes encoding phenylalanine ammonia lyase and chalcone synthase.
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Affiliation(s)
- L-T Dinis
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes e Alto Douro, Apt. 1013, 5000-801 Vila Real, Portugal.
| | - S Bernardo
- School of Agriculture Sciences Veterinary ECAV, University of Trás-os-Montes Alto Douro, Apt. 1013, 5001-801 Vila Real, Portugal
| | - A Conde
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes e Alto Douro, Apt. 1013, 5000-801 Vila Real, Portugal; Grupo de Investigação em Biologia Vegetal Aplicada e Inovação Agroalimentar (AgroBioPlant), Departamento de Biologia, Universidade do Minho, 4710-057 Braga, Portugal
| | - D Pimentel
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes e Alto Douro, Apt. 1013, 5000-801 Vila Real, Portugal; Grupo de Investigação em Biologia Vegetal Aplicada e Inovação Agroalimentar (AgroBioPlant), Departamento de Biologia, Universidade do Minho, 4710-057 Braga, Portugal
| | - H Ferreira
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes e Alto Douro, Apt. 1013, 5000-801 Vila Real, Portugal
| | - L Félix
- Life Sciences and Environment School, University of Trás-os-Montes and Alto Douro, Apt. 1013, 5001-801 Vila Real, Portugal; Laboratory Animal Science, Institute for Molecular and Cell Biology, University of Porto, Rua do Campo Alegre, 823, 4150-180 Porto, Portugal
| | - H Gerós
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes e Alto Douro, Apt. 1013, 5000-801 Vila Real, Portugal; Grupo de Investigação em Biologia Vegetal Aplicada e Inovação Agroalimentar (AgroBioPlant), Departamento de Biologia, Universidade do Minho, 4710-057 Braga, Portugal; Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho, Braga, Portugal
| | - C M Correia
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes e Alto Douro, Apt. 1013, 5000-801 Vila Real, Portugal
| | - J Moutinho-Pereira
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes e Alto Douro, Apt. 1013, 5000-801 Vila Real, Portugal
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Cerqueiro J, González-Franco A, Montero-Pérez-Barquero M, Llácer P, Conde A, Dávila M, Carrera M, Serrado A, Suárez I, Pérez-Silvestre J, Satué J, Arévalo-Lorido J, Rodríguez A, Herrero A, Jordana R, Manzano L. Reducción de ingresos y visitas a Urgencias en pacientes frágiles con insuficiencia cardíaca: resultados del programa asistencial UMIPIC. Rev Clin Esp 2016; 216:8-14. [DOI: 10.1016/j.rce.2015.07.006] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2015] [Revised: 07/14/2015] [Accepted: 07/14/2015] [Indexed: 01/11/2023]
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Cerqueiro J, González-Franco A, Montero-Pérez-Barquero M, Llácer P, Conde A, Dávila M, Carrera M, Serrado A, Suárez I, Pérez-Silvestre J, Satué J, Arévalo-Lorido J, Rodríguez A, Herrero A, Jordana R, Manzano L. Reduction in hospitalizations and emergency department visits for frail patients with heart failure: Results of the UMIPIC healthcare program. Rev Clin Esp 2016. [DOI: 10.1016/j.rceng.2015.09.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Casado Cerrada J, Carrasco Sánchez FJ, Pérez-Calvo JI, Manzano L, Formiga F, Aramburu Bodas O, Conde A, Quirós R, Pérez Bocanegra C, Montero-Pérez-Barquero M. Prognostic value of glomerular filtration rate estimation equations in acute heart failure with preserved versus reduced ejection fraction. Int J Clin Pract 2015; 69:829-39. [PMID: 25651522 DOI: 10.1111/ijcp.12616] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
AIMS Renal function is an important prognostic factor in heart failure. The aim of this study was to compare the predictive value of estimated renal function calculated by the Chronic Kidney Disease-Epidemiology Collaboration equation (CKD-EPI) and the abbreviated Modification of Diet in Renal Disease (MDRD-4) equation for long-term all-cause mortality in patients admitted for acute decompensated heart failure (ADHF) with both preserved ejection fraction (HF-PEF) and reduced ejection fraction (HF-REF). METHODS AND RESULTS We evaluated patients included in the Spanish National Registry of Heart Failure (RICA). RICA is a multicentre, prospective, cohort study that included patients admitted to the Internal Medicine units with ADHF. Estimated glomerular filtration rate (eGFR) was calculated with CKD-EPI and MDRD-4 equations. A total of 1805 patients admitted for ADHF were studied (52% women; median age 80 years, interquartile range 73.9-84.6 years); of these, 1044 (58%) had HF-PEF. eGFR values were lower with the CKD-EPI formula than with the MDRD-4 formula (51 ml/min/1.73 m(2) vs. 55.7 ml/min/1.73 m(2) ; p < 0.001). The two formulas provided independent prognostic information over long-term follow-up, in both HF-PEF and HF-REF patients. However, in HF-PEF patients, CKD-EPI equation was associated with a significant improvement in reclassification analyses (net reclassification improvement 6.78%; p = 0.009). CONCLUSIONS In this clinical cohort of ADHF patients, eGFR as calculated by both the CKD-EPI and the MDRD-4 formulas offered similar prognostic information, irrespective of ejection fraction status, but in HF-PEF patients specifically, the CKD-EPI formula seems to improve clinical risk stratification as compared with MDRD-4.
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Affiliation(s)
- J Casado Cerrada
- Internal Medicine Department, Hospital Universitario de Getafe, Madrid, Spain
| | | | - J I Pérez-Calvo
- Internal Medicine Department, Instituto de Investigación Sanitaria de Aragón, Hospital Clínico Universitario Lozano Blesa, Zaragoza, Spain
| | - L Manzano
- Heart Failure and Vascular Risk Unit, Department of Internal Medicine, University Hospital Ramón y Cajal, University of Alcalá, Madrid, Spain
| | - F Formiga
- Geriatric Unit, Internal Medicine Service, IDIBELL, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat, Barcelona, Spain
| | - O Aramburu Bodas
- Internal Medicine Department, Hospital Universitario Virgen Macarena de Sevilla, Sevilla, Spain
| | - A Conde
- Internal Medicine Department, Hospital Universitario de Gran Canaria Dr. Negrín, Las Palmas de Gran Canaria, Spain
| | - R Quirós
- Internal Medicine Department, Hospital Costa del Sol, Marbella, Spain
| | - C Pérez Bocanegra
- Internal Medicine Department, Hospital Universitario Vall d'Hebrón, Barcelona, Spain
| | - M Montero-Pérez-Barquero
- Internal Medicine Deparment, IMIBIC/Hospital Reina Sofia de Córdoba, University of Córdoba, Córdoba, Spain
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Conde A, Regalado A, Rodrigues D, Costa JM, Blumwald E, Chaves MM, Gerós H. Polyols in grape berry: transport and metabolic adjustments as a physiological strategy for water-deficit stress tolerance in grapevine. J Exp Bot 2015; 66:889-906. [PMID: 25433029 DOI: 10.1093/jxb/eru446] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Polyols are important metabolites that often function as carbon and energy sources and/or osmoprotective solutes in some plants. In grapevine, and in the grape berry in particular, the molecular aspects of polyol transport and metabolism and their physiological relevance are virtually unknown to date. Here, the biochemical function of a grapevine fruit mesocarp polyol transporter (VvPLT1) was characterized after its heterologous expression in yeast. This H(+)-dependent plasma membrane carrier transports mannitol (K m=5.4mM) and sorbitol (K m=9.5mM) over a broad range of polyols and monosaccharides. Water-deficit stress triggered an increase in the expression of VvPLT1 at the fully mature stage, allowing increased polyol uptake into pulp cells. Plant polyol dehydrogenases are oxireductases that reversibly oxidize polyols into monosaccharides. Mannitol catabolism in grape cells (K m=30.1mM mannitol) and mature berry mesocarps (K m=79mM) was, like sorbitol dehydrogenase activity, strongly inhibited (50-75%) by water-deficit stress. Simultaneously, fructose reduction into polyols via mannitol and sorbitol dehydrogenases was stimulated, contributing to their higher intracellular concentrations in water-deficit stress. Accordingly, the concentrations of mannitol, sorbitol, galactinol, myo-inositol, and dulcitol were significantly higher in berry mesocarps from water-deficit-stressed Tempranillo grapevines. Metabolomic profiling of the berry pulp by GC-TOF-MS also revealed many other changes in its composition induced by water deficit. The impact of polyols on grape berry composition and plant response to water deficit stress, via modifications in polyol transport and metabolism, was analysed by integrating metabolomics with transcriptional analysis and biochemical approaches.
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Affiliation(s)
- Artur Conde
- Centro de Investigação e de Tecnologias Agro-Ambientais e Biológicas (CITAB-UM), Portugal Grupo de Investigação em Biologia Vegetal Aplicada e Inovação Agroalimentar (AgroBioPlant), Departamento de Biologia, Universidade do Minho, 4710-057 Braga, Portugal
| | - Ana Regalado
- Instituto de Tecnologia Química e Biológica, Apartado 127, 2781-901 Oeiras, Portugal
| | - Diana Rodrigues
- Grupo de Investigação em Biologia Vegetal Aplicada e Inovação Agroalimentar (AgroBioPlant), Departamento de Biologia, Universidade do Minho, 4710-057 Braga, Portugal
| | - J Miguel Costa
- Instituto de Tecnologia Química e Biológica, Apartado 127, 2781-901 Oeiras, Portugal Instituto Superior de Agronomia, Universidade Técnica de Lisboa, Tapada da Ajuda, 1349-017 Lisboa, Portugal
| | - Eduardo Blumwald
- Department of Plant Sciences, UC Davis, One Shields Ave, Davis, CA 95616, USA
| | - M Manuela Chaves
- Instituto de Tecnologia Química e Biológica, Apartado 127, 2781-901 Oeiras, Portugal Instituto Superior de Agronomia, Universidade Técnica de Lisboa, Tapada da Ajuda, 1349-017 Lisboa, Portugal
| | - Hernâni Gerós
- Centro de Investigação e de Tecnologias Agro-Ambientais e Biológicas (CITAB-UM), Portugal Grupo de Investigação em Biologia Vegetal Aplicada e Inovação Agroalimentar (AgroBioPlant), Departamento de Biologia, Universidade do Minho, 4710-057 Braga, Portugal
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Caballero-Flores R, Bingham NS, Phan MH, Torija MA, Leighton C, Franco V, Conde A, Phan TL, Yu SC, Srikanth H. Magnetocaloric effect and critical behavior in Pr0.5Sr0.5MnO3: an analysis of the validity of the Maxwell relation and the nature of the phase transitions. J Phys Condens Matter 2014; 26:286001. [PMID: 24945593 DOI: 10.1088/0953-8984/26/28/286001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The Maxwell relation, the Clausius-Clapeyron equation, and a non-iterative method to obtain the critical exponents have been used to characterize the magnetocaloric effect (MCE) and the nature of the phase transitions in Pr0.5Sr0.5MnO3, which undergoes a second-order paramagnetic to ferromagnetic (PM-FM) transition at TC ~ 247 K, and a first-order ferromagnetic to antiferromagnetic (FM-AFM) transition at TN ~ 165 K. We find that around the second-order PM-FM transition, the MCE (as represented by the magnetic entropy change, ΔSM) can be precisely determined from magnetization measurements using the Maxwell relation. However, around the first-order FM-AFM transition, values of ΔSM calculated with the Maxwell relation deviate significantly from those calculated by the Clausius-Clapeyron equation at the magnetic field and temperature ranges where a conversion between the AFM and FM phases occurs. A detailed analysis of the critical exponents of the second-order PM-FM transition allows us to correlate the short-range type magnetic interactions with the MCE. Using the Arrott-Noakes equation of state with the appropriate values of the critical exponents, the field- and temperature-dependent magnetization [Formula: see text] curves, and hence the [Formula: see text] curves, have been simulated and compared with experimental data. A good agreement between the experimental and simulated data has been found in the vicinity of the Curie temperature TC, but a noticeable discrepancy is present for [Formula: see text]. This discrepancy arises mainly from the coexistence of AFM and FM phases and the presence of ferromagnetic clusters in the AFM matrix.
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Affiliation(s)
- R Caballero-Flores
- Department of Physics, University of South Florida, Tampa, FL 33620, USA. Departamento de Física de la Materia Condensada, ICMSE-CSIC, Universidad de Sevilla, 41080 Sevilla, Spain. Departamento de Física, Universidad de Oviedo, 33007 Oviedo, Spain
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Perez Castellano N, Fernandez R, Moreno J, Conde A, Canadas V, Gonzalez-Ferrer JJ, Aguirre JM, Bover R, Macaya C, Villacastin J. The COR trial: a randomized study with continuous rhythm monitoring comparing the efficacy of cryoenergy and radiofrequency for pulmonary vein isolation. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht307.p501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Muelas R, Garcia R, García-amo R, Rodríguez M, Quirós J, Conde A, Ferrer C. Biologically based planning IMRT for synchronous tumors. Rep Pract Oncol Radiother 2013. [DOI: 10.1016/j.rpor.2013.03.251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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González V, Rodriguez M, Morillo V, Muelas R, Conde A, Ferrer C. Spindle cell head and neck tumour. A case report. Rep Pract Oncol Radiother 2013. [DOI: 10.1016/j.rpor.2013.03.288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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Caldas L, Espirito-Santo H, Matreno J, Marques M, Pena I, Costa M, Costa A, Simões D, Conde A, Correia A, Almeida R, Moitinho S, Rodrigues F, Simões S, Lemos L, Daniel F. 1554 – Verbal fluencies associated factors in elderly. Eur Psychiatry 2013. [DOI: 10.1016/s0924-9338(13)76563-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Caballero-Flores R, Franco V, Conde A, Kiss LF, Péter L, Bakonyi I. Magnetic multilayers as a way to increase the magnetic field responsiveness of magnetocaloric materials. J Nanosci Nanotechnol 2012; 12:7432-7436. [PMID: 23035489 DOI: 10.1166/jnn.2012.6521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The magnetocaloric response of Ni-Cu based multilayers has been studied with the aim of optimizing their magnetic field dependence. In contrast to the behavior of single phase materials, whose peak magnetic entropy change follows a power law with exponents close to 0.75, multilayering leads to exponents of -1 for an extended temperature span close to the transition temperature. This demonstrates that nanostructuring can be a good strategy to enhance the magnetic field responsiveness of magnetocaloric materials.
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Affiliation(s)
- R Caballero-Flores
- Dpto. Física de la Materia Condensada, ICMSE-CSIC, Universidad de Sevilla, PO Box 1065, 41080 Sevilla, Spain
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Conde A, Silva P, Agasse A, Conde C, Gerós H. Mannitol transport and mannitol dehydrogenase activities are coordinated in Olea europaea under salt and osmotic stresses. Plant Cell Physiol 2011; 52:1766-75. [PMID: 21893515 DOI: 10.1093/pcp/pcr121] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The intracellular accumulation of organic compatible solutes functioning as osmoprotectants, such as polyols, is an important response mechanism of several plants to drought and salinity. In Olea europaea a mannitol transport system (OeMaT1) was previously characterized as a key player in plant response to salinity. In the present study, heterotrophic sink models, such as olive cell suspensions and fruit tissues, and source leaves were used for analytical, biochemical and molecular studies. The kinetic parameters of mannitol dehydrogenase (MTD) determined in cells growing in mannitol, at 25°C and pH 9.0, were as follows: K(m), 54.5 mM mannitol; and V(max), 0.47 μmol h⁻¹ mg⁻¹ protein. The corresponding cDNA was cloned and named OeMTD1. OeMTD1 expression was correlated with MTD activity, OeMaT1 expression and carrier-mediated mannitol transport in mannitol- and sucrose-grown cells. Furthermore, sucrose-grown cells displayed only residual OeMTD activity, even though high levels of OeMTD1 transcription were observed. There is evidence that OeMTD is regulated at both transcriptional and post-transcriptional levels. MTD activity and OeMTD1 expression were repressed after Na+, K+ and polyethylene glycol (PEG) treatments, in both mannitol- and sucrose-grown cells. In contrast, salt and drought significantly increased mannitol transport activity and OeMaT1 expression. Taken together, these studies support that olive trees cope with salinity and drought by coordinating mannitol transport with intracellular metabolism.
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Affiliation(s)
- Artur Conde
- Centro de Investigação e de Tecnologias Agro-Ambientais e Biológicas (CITAB), Portugal
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Conde A, Chaves MM, Gerós H. Membrane transport, sensing and signaling in plant adaptation to environmental stress. Plant Cell Physiol 2011; 52:1583-1602. [PMID: 21828102 DOI: 10.1093/pcp/pbr107] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Plants are generally well adapted to a wide range of environmental conditions. Even though they have notably prospered in our planet, stressful conditions such as salinity, drought and cold or heat, which are increasingly being observed worldwide in the context of the ongoing climate changes, limit their growth and productivity. Behind the remarkable ability of plants to cope with these stresses and still thrive, sophisticated and efficient mechanisms to re-establish and maintain ion and cellular homeostasis are involved. Among the plant arsenal to maintain homeostasis are efficient stress sensing and signaling mechanisms, plant cell detoxification systems, compatible solute and osmoprotectant accumulation and a vital rearrangement of solute transport and compartmentation. The key role of solute transport systems and signaling proteins in cellular homeostasis is addressed in the present work. The full understanding of the plant cell complex defense mechanisms under stress may allow for the engineering of more tolerant plants or the optimization of cultivation practices to improve yield and productivity, which is crucial at the present time as food resources are progressively scarce.
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Affiliation(s)
- Artur Conde
- Centro de Investigacão e de Tecnologias Agro-Ambientais e Biológicas, Portugal
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Abstract
Plants are generally well adapted to a wide range of environmental conditions. Even though they have notably prospered in our planet, stressful conditions such as salinity, drought and cold or heat, which are increasingly being observed worldwide in the context of the ongoing climate changes, limit their growth and productivity. Behind the remarkable ability of plants to cope with these stresses and still thrive, sophisticated and efficient mechanisms to re-establish and maintain ion and cellular homeostasis are involved. Among the plant arsenal to maintain homeostasis are efficient stress sensing and signaling mechanisms, plant cell detoxification systems, compatible solute and osmoprotectant accumulation and a vital rearrangement of solute transport and compartmentation. The key role of solute transport systems and signaling proteins in cellular homeostasis is addressed in the present work. The full understanding of the plant cell complex defense mechanisms under stress may allow for the engineering of more tolerant plants or the optimization of cultivation practices to improve yield and productivity, which is crucial at the present time as food resources are progressively scarce.
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Affiliation(s)
- Artur Conde
- Centro de Investigacão e de Tecnologias Agro-Ambientais e Biológicas, Portugal
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Arenas MA, Frutos E, Saldaña L, Conde A, Labajos-Broncano L, González-Martín ML, González-Carrasco JL, Vilaboa N. Corrosion behaviour and biocompatibility of a novel Ni-free intermetallic coating growth on austenitic steel by hot dipping in an Al-12.6%Si alloy. J Mater Sci Mater Med 2011; 22:1005-1014. [PMID: 21437641 DOI: 10.1007/s10856-011-4284-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2010] [Accepted: 03/07/2011] [Indexed: 05/30/2023]
Abstract
Commercial 316 LVM austenitic stainless steel samples have been coated by immersion in a bath of molten Al-12.6%Si alloy for 120 s. The coating consists of the Al(12)(Fe,Cr)(3)Si(2) intermetallic. In vitro corrosion behaviour has been evaluated in the Ringer's solution by means of potentiodynamic curves and electrochemical impedance spectroscopy. The results reveal that the coated specimens exhibit lower susceptibility to localised corrosion with respect to the substrate. XPS analysis suggests that the ennoblement of the pitting potential is due to the formation of a chromium oxyhydroxide containing passive layer. The intermetallic coating shows a good biocompatibility, as demonstrated by culturing human mesenchymal stem cells isolated from bone marrow which attached, grew and differentiated to the osteoblastic lineage to a similar extent on coated and bare steels. In summary, this study proposes a method that generates Ni-free coatings of the stainless steel with useful properties for biomedical applications.
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Affiliation(s)
- M A Arenas
- Centro Nacional de Investigaciones Metalúrgicas, CENIM-CSIC, Avda. Gregorio del Amo 8, 28040 Madrid, Spain.
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Peremarch CPJ, Tanoira RP, Arenas MA, Matykina E, Conde A, De Damborenea JJ, Barrena EG, Esteban J. Bacterial adherence to anodized titanium alloy. ACTA ACUST UNITED AC 2010. [DOI: 10.1088/1742-6596/252/1/012011] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Conde A, Diallinas G, Chaumont F, Chaves M, Gerós H. Transporters, channels, or simple diffusion? Dogmas, atypical roles and complexity in transport systems. Int J Biochem Cell Biol 2010; 42:857-68. [DOI: 10.1016/j.biocel.2009.12.012] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2009] [Revised: 12/12/2009] [Accepted: 12/15/2009] [Indexed: 10/20/2022]
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Cacabelos P, El Berdei Y, Rivas MT, Riveira C, Conde A, Pascual J. [Low versus high doses of topiramate in the preventive treatment of migraine]. Neurologia 2009; 24:808-810. [PMID: 20099154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023] Open
Abstract
INTRODUCTION The efficacy of topiramate in the preventive treatment of migraine is well demonstrated. Clinical trials indicate that the dose of 100 mg/daily is the ideal in terms of efficacy, but doses as low as 50 mg/ daily show some efficacy, which could improve its tolerability in some patients. OBJECTIVE To analyse the behaviour of the different doses of topiramate in daily clinical practice. PATIENTS AND METHODS Patients with frequent migraine with or without aura episodes who received topiramate in our clinic were treated in a homogeneous way. Initially they were given 50 mg/daily (usually as a nocturnal dose), after increasing the dose in 2-3 weeks. The efficacy was evaluated after 6-8 weeks. If no response (decrease in frequency by at least 50%) was observed the dose of topiramate was increased (25 mg/week) up to 100 mg/daily, The patients were seen at least once every 3 months. RESULTS This series includes 182 patients. Globally, 75% of the patients responded, 14% did not respond and 11% did not tolerate the drug. One-quarter of patients (44 cases) responded to low doses, while 92 patients (51%) responded to the 100 mg/dose. Tolerability slightly decreased on increasing the dose. CONCLUSIONS These data indicate that one-quarter of the patients respond to low doses in daily clinical practice, though about half of these patients will need doses of 100 mg/day. Given the higher tolerability of low doses, we recommend trying first low doses before giving higher doses, which will be necessary in half of the patients.
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Affiliation(s)
- P Cacabelos
- Servicio de Neurologia, Hospital Universitario, Salamanca, Spain
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Navarro M, Conde A, Gómez JC, Alañá M, Cruz JJ, Pascual J. Severe, unilateral facial pain as the presenting manifestation of lung cancer. Eur J Cancer Care (Engl) 2009; 19:e10. [PMID: 19832897 DOI: 10.1111/j.1365-2354.2008.01044.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Castillo N, Diaz Barriga L, Perez R, Conde A. Thermal stability study and structural of palladium platinum nanoparticles by HREM. Acta Crystallogr A 2008. [DOI: 10.1107/s0108767308080689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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