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Quesada-López T, Cereijo R, Blasco-Roset A, Mestres-Arenas A, Prieto P, Domingo JC, Villarroya F, Domingo P, Giralt M. Divergent effects of the antiretroviral drugs, dolutegravir, tenofovir alafenamide, and tenofovir disoproxil fumarate, on human adipocyte function. Biochem Pharmacol 2024; 220:116010. [PMID: 38154544 DOI: 10.1016/j.bcp.2023.116010] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 12/20/2023] [Accepted: 12/21/2023] [Indexed: 12/30/2023]
Abstract
Combined antiretroviral therapy (cART) has been associated with increased body weight accompanied by metabolic alterations in people living with human immunodeficiency virus (PLWH). To gain insight into the combined effects of cART components on adipocyte dysfunction, we assessed whether and how treatment of human adipocytes with dolutegravir (DTG) and the nucleotide-analog reverse-transcriptase inhibitors (NRTIs), tenofovir alafenamide (TAF) and tenofovir disoproxil fumarate (TDF), alone and in combination, altered biological processes related to adipose tissue dysfunction. DTG, TAF, and TDF were applied to human Simpson-Golabi-Behmel syndrome (SGBS) adipose cells during differentiation (day 10) and ensuing differentiation (day 14). Expression of selected marker genes was determined by qPCR, the release of adipokines and inflammatory cytokines to the culture media was assessed, and cell respiration was measured. Adipogenesis was not altered by the combined treatment of human adipocytes. However, DTG at the highest dose repressed adipogenesis marker genes expression, and TAF and TDF appeared to mitigate this effect. DTG repressed the expression of adiponectin and the release of adiponectin and leptin in differentiating adipocytes, and these effects were mantained in combination with TAF and TDF. DTG plus TAF or TDF on human adipocytes enhanced inflammation and stress and increased the release of proinflammatory cytokines to the culture media. Together, our results show that combined therapy with these drugs can alter inflammation, cellular stress, and fibrosis in human adipocytes. These findings may improve our understanding and management of the effects of cART on body adiposity and metabolic dysregulation in PLWH.
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Affiliation(s)
- T Quesada-López
- Department of Infectious Diseases, Hospital de la Santa Creu i Sant Pau, Barcelona, Catalonia, Spain; Institut de Recerca de l'Hospital de la Santa Creu i Sant Pau, Barcelona, Catalonia, Spain; Departament de Bioquímica i Biomedicina Molecular, Facultat de Biologia, Universitat de Barcelona, Barcelona, Catalonia, Spain; Institut de Biomedicina (IBUB), Universitat de Barcelona, Barcelona, Catalonia, Spain; CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
| | - R Cereijo
- Departament de Bioquímica i Biomedicina Molecular, Facultat de Biologia, Universitat de Barcelona, Barcelona, Catalonia, Spain; Institut de Biomedicina (IBUB), Universitat de Barcelona, Barcelona, Catalonia, Spain; CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
| | - A Blasco-Roset
- Departament de Bioquímica i Biomedicina Molecular, Facultat de Biologia, Universitat de Barcelona, Barcelona, Catalonia, Spain; Institut de Biomedicina (IBUB), Universitat de Barcelona, Barcelona, Catalonia, Spain; CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
| | - A Mestres-Arenas
- Departament de Bioquímica i Biomedicina Molecular, Facultat de Biologia, Universitat de Barcelona, Barcelona, Catalonia, Spain; Institut de Biomedicina (IBUB), Universitat de Barcelona, Barcelona, Catalonia, Spain; CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
| | - P Prieto
- Department of Infectious Diseases, Hospital de la Santa Creu i Sant Pau, Barcelona, Catalonia, Spain; Institut de Recerca de l'Hospital de la Santa Creu i Sant Pau, Barcelona, Catalonia, Spain
| | - J C Domingo
- Departament de Bioquímica i Biomedicina Molecular, Facultat de Biologia, Universitat de Barcelona, Barcelona, Catalonia, Spain
| | - F Villarroya
- Departament de Bioquímica i Biomedicina Molecular, Facultat de Biologia, Universitat de Barcelona, Barcelona, Catalonia, Spain; Institut de Biomedicina (IBUB), Universitat de Barcelona, Barcelona, Catalonia, Spain; CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain; Institut de Recerca Sant Joan de Déu (IRSJD), Esplugues de Llobregat, Catalonia, Spain
| | - P Domingo
- Department of Infectious Diseases, Hospital de la Santa Creu i Sant Pau, Barcelona, Catalonia, Spain; Institut de Recerca de l'Hospital de la Santa Creu i Sant Pau, Barcelona, Catalonia, Spain.
| | - M Giralt
- Departament de Bioquímica i Biomedicina Molecular, Facultat de Biologia, Universitat de Barcelona, Barcelona, Catalonia, Spain; Institut de Biomedicina (IBUB), Universitat de Barcelona, Barcelona, Catalonia, Spain; CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain; Institut de Recerca Sant Joan de Déu (IRSJD), Esplugues de Llobregat, Catalonia, Spain.
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Gálvez-Galván A, Garrido-Ramos MA, Prieto P. Bread wheat satellitome: a complex scenario in a huge genome. Plant Mol Biol 2024; 114:8. [PMID: 38291213 PMCID: PMC10827815 DOI: 10.1007/s11103-023-01404-x] [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] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Accepted: 11/01/2023] [Indexed: 02/01/2024]
Abstract
In bread wheat (Triticum aestivum L.), chromosome associations during meiosis are extremely regulated and initiate at the telomeres and subtelomeres, which are enriched in satellite DNA (satDNA). We present the study and characterization of the bread wheat satellitome to shed light on the molecular organization of wheat subtelomeres. Our results revealed that the 2.53% of bread wheat genome is composed by satDNA and subtelomeres are particularly enriched in such DNA sequences. Thirty-four satellite DNA (21 for the first time in this work) have been identified, analyzed and cytogenetically validated. Many of the satDNAs were specifically found at particular subtelomeric chromosome regions revealing the asymmetry in subtelomere organisation among the wheat subgenomes, which might play a role in proper homologous recognition and pairing during meiosis. An integrated physical map of the wheat satellitome was also constructed. To the best of our knowledge, our results show that the combination of both cytogenetics and genome research allowed the first comprehensive analysis of the wheat satellitome, shedding light on the complex wheat genome organization, especially on the polymorphic nature of subtelomeres and their putative implication in chromosome recognition and pairing during meiosis.
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Affiliation(s)
- Ana Gálvez-Galván
- Plant Breeding Department, Institute for Sustainable Agriculture, Agencia Estatal Consejo Superior de Investigaciones Científicas (CSIC), Avda. Menéndez Pidal, Campus Alameda del Obispo S/N, 14004, Córdoba, Spain
| | - Manuel A Garrido-Ramos
- Departamento de Genética, Facultad de Ciencias, Universidad de Granada, Avda. Fuentenueva S/N, 18071, Granada, Spain.
| | - Pilar Prieto
- Plant Breeding Department, Institute for Sustainable Agriculture, Agencia Estatal Consejo Superior de Investigaciones Científicas (CSIC), Avda. Menéndez Pidal, Campus Alameda del Obispo S/N, 14004, Córdoba, Spain.
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Falistocco E, Prieto P, Ceccarelli M, Farooq MA. Editorial: Advances in the study of polyploid evolution in wild populations. Front Plant Sci 2024; 14:1335981. [PMID: 38239216 PMCID: PMC10794651 DOI: 10.3389/fpls.2023.1335981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Accepted: 12/11/2023] [Indexed: 01/22/2024]
Affiliation(s)
- Egizia Falistocco
- University of Perugia, Perugia, Italy
- Department of Agricultural, Food and Environmental Sciences, University of Perugia, Perugia, Italy
| | - Pilar Prieto
- Institute for Sustainable Agriculture, Spanish National Research Council (CSIC), Córdoba, Spain
| | - Marilena Ceccarelli
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Perugia, Italy
| | - Muhammad Awais Farooq
- State Key Laboratory of North China Crop Improvement and Regulation, Agricultural University of Hebei, Baoding, China
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Serrano-León IM, Prieto P, Aguilar M. Correction: Telomere and subtelomere high polymorphism might contribute to the specifcity of homologous recognition and pairing during meiosis in barley in the context of breeding. BMC Genomics 2023; 24:694. [PMID: 37985967 PMCID: PMC10661675 DOI: 10.1186/s12864-023-09797-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2023] Open
Affiliation(s)
- I M Serrano-León
- Plant Breeding Department, Institute for Sustainable Agriculture, Agencia Estatal Consejo Superior de Investigaciones Cient?ficas (CSIC), Avenida Menéndez Pidal S/N., Campus Alameda del Obispo, 14004, Córdoba, Spain
| | - P Prieto
- Plant Breeding Department, Institute for Sustainable Agriculture, Agencia Estatal Consejo Superior de Investigaciones Cient?ficas (CSIC), Avenida Menéndez Pidal S/N., Campus Alameda del Obispo, 14004, Córdoba, Spain.
| | - M Aguilar
- Área de Fisiología Vegetal, Universidad de Córdoba, Campus de Rabanales, Edif. C4, 3? Planta, Córdoba, Spain
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Serrano-León IM, Prieto P, Aguilar M. Telomere and subtelomere high polymorphism might contribute to the specificity of homologous recognition and pairing during meiosis in barley in the context of breeding. BMC Genomics 2023; 24:642. [PMID: 37884878 PMCID: PMC10601145 DOI: 10.1186/s12864-023-09738-y] [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: 07/26/2023] [Accepted: 10/12/2023] [Indexed: 10/28/2023] Open
Abstract
Barley (Hordeum vulgare) is one of the most popular cereal crops globally. Although it is a diploid species, (2n = 2x = 14) the study of its genome organization is necessary in the framework of plant breeding since barley is often used in crosses with other cereals like wheat to provide them with advantageous characters. We already have an extensive knowledge on different stages of the meiosis, the cell division to generate the gametes in species with sexual reproduction, such as the formation of the synaptonemal complex, recombination, and chromosome segregation. But meiosis really starts with the identification of homologous chromosomes and pairing initiation, and it is still unclear how chromosomes exactly choose a partner to appropriately pair for additional recombination and segregation. In this work we present an exhaustive molecular analysis of both telomeres and subtelomeres of barley chromosome arms 2H-L, 3H-L and 5H-L. As expected, the analysis of multiple features, including transposable elements, repeats, GC content, predicted CpG islands, recombination hotspots, G4 quadruplexes, genes and targeted sequence motifs for key DNA-binding proteins, revealed a high degree of variability both in telomeres and subtelomeres. The molecular basis for the specificity of homologous recognition and pairing occurring in the early chromosomal interactions at the start of meiosis in barley may be provided by these polymorphisms. A more relevant role of telomeres and most distal part of subtelomeres is suggested.
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Affiliation(s)
- I M Serrano-León
- Plant Breeding Department, Institute for Sustainable Agriculture, Agencia Estatal Consejo Superior de Investigaciones Científicas (CSIC), Avenida Menéndez Pidal S/N., Campus Alameda del Obispo, 14004, Córdoba, Spain
| | - P Prieto
- Plant Breeding Department, Institute for Sustainable Agriculture, Agencia Estatal Consejo Superior de Investigaciones Científicas (CSIC), Avenida Menéndez Pidal S/N., Campus Alameda del Obispo, 14004, Córdoba, Spain.
| | - M Aguilar
- Área de Fisiología Vegetal, Universidad de Córdoba, Campus de Rabanales, Edif. C4, 3ª Planta, Córdoba, Spain
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Núñez-Cano J, Romera FJ, Prieto P, García MJ, Sevillano-Caño J, Agustí-Brisach C, Pérez-Vicente R, Ramos J, Lucena C. Effect of the Nonpathogenic Strain Fusarium oxysporum FO12 on Fe Acquisition in Rice ( Oryza sativa L.) Plants. Plants (Basel) 2023; 12:3145. [PMID: 37687390 PMCID: PMC10489696 DOI: 10.3390/plants12173145] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 08/29/2023] [Accepted: 08/30/2023] [Indexed: 09/10/2023]
Abstract
Rice (Oryza sativa L.) is a very important cereal worldwide, since it is the staple food for more than half of the world's population. Iron (Fe) deficiency is among the most important agronomical concerns in calcareous soils where rice plants may suffer from this deficiency. Current production systems are based on the use of high-yielding varieties and the application of large quantities of agrochemicals, which can cause major environmental problems. The use of beneficial rhizosphere microorganisms is considered a relevant sustainable alternative to synthetic fertilizers. The main goal of this study was to determine the ability of the nonpathogenic strain Fusarium oxysporum FO12 to induce Fe-deficiency responses in rice plants and its effects on plant growth and Fe chlorosis. Experiments were carried out under hydroponic system conditions. Our results show that the root inoculation of rice plants with FO12 promotes the production of phytosiderophores and plant growth while reducing Fe chlorosis symptoms after several days of cultivation. Moreover, Fe-related genes are upregulated by FO12 at certain times in inoculated plants regardless of Fe conditions. This microorganism also colonizes root cortical tissues. In conclusion, FO12 enhances Fe-deficiency responses in rice plants, achieves growth promotion, and reduces Fe chlorosis symptoms.
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Affiliation(s)
- Jorge Núñez-Cano
- Departamento de Agronomía (Unit of Excellence ‘María de Maeztu’ 2020-24), Edificio Celestino Mutis (C-4), Campus de Excelencia Internacional Agroalimentario de Rabanales (ceiA3), Universidad de Córdoba, 14071 Córdoba, Spain; (J.N.-C.); (F.J.R.); (M.J.G.); (J.S.-C.); (C.A.-B.)
| | - Francisco J. Romera
- Departamento de Agronomía (Unit of Excellence ‘María de Maeztu’ 2020-24), Edificio Celestino Mutis (C-4), Campus de Excelencia Internacional Agroalimentario de Rabanales (ceiA3), Universidad de Córdoba, 14071 Córdoba, Spain; (J.N.-C.); (F.J.R.); (M.J.G.); (J.S.-C.); (C.A.-B.)
| | - Pilar Prieto
- Departamento de Mejora Genética, Instituto de Agricultura Sostenible (IAS), Consejo Superior de Investigaciones Científicas (CSIC), 14004 Córdoba, Spain;
| | - María J. García
- Departamento de Agronomía (Unit of Excellence ‘María de Maeztu’ 2020-24), Edificio Celestino Mutis (C-4), Campus de Excelencia Internacional Agroalimentario de Rabanales (ceiA3), Universidad de Córdoba, 14071 Córdoba, Spain; (J.N.-C.); (F.J.R.); (M.J.G.); (J.S.-C.); (C.A.-B.)
| | - Jesús Sevillano-Caño
- Departamento de Agronomía (Unit of Excellence ‘María de Maeztu’ 2020-24), Edificio Celestino Mutis (C-4), Campus de Excelencia Internacional Agroalimentario de Rabanales (ceiA3), Universidad de Córdoba, 14071 Córdoba, Spain; (J.N.-C.); (F.J.R.); (M.J.G.); (J.S.-C.); (C.A.-B.)
| | - Carlos Agustí-Brisach
- Departamento de Agronomía (Unit of Excellence ‘María de Maeztu’ 2020-24), Edificio Celestino Mutis (C-4), Campus de Excelencia Internacional Agroalimentario de Rabanales (ceiA3), Universidad de Córdoba, 14071 Córdoba, Spain; (J.N.-C.); (F.J.R.); (M.J.G.); (J.S.-C.); (C.A.-B.)
| | - Rafael Pérez-Vicente
- Departamento de Botánica, Ecología y Fisiología Vegetal, Edificio Celestino Mutis (C-4), Campus de Excelencia Internacional Agroalimentario de Rabanales (ceiA3), Universidad de Córdoba, 14071 Córdoba, Spain;
| | - José Ramos
- Departamento de Química Agrícola, Edafología y Microbiología, Edificio Severo Ochoa (C-6), Campus de Excelencia Internacional Agroalimentario de Rabanales (ceiA3), Universidad de Córdoba, 14071 Córdoba, Spain;
| | - Carlos Lucena
- Departamento de Agronomía (Unit of Excellence ‘María de Maeztu’ 2020-24), Edificio Celestino Mutis (C-4), Campus de Excelencia Internacional Agroalimentario de Rabanales (ceiA3), Universidad de Córdoba, 14071 Córdoba, Spain; (J.N.-C.); (F.J.R.); (M.J.G.); (J.S.-C.); (C.A.-B.)
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Gámez-Valenzuela S, Torres-Moya I, Sánchez A, Donoso B, López Navarrete JT, Ruiz Delgado MC, Prieto P, Ponce Ortiz R. Extended π-Conjugation and Structural Planarity Effects of Symmetrical D-π-A-π-D Naphthalene and Perylene Diimide Semiconductors on n-type Electrical Properties. Chemistry 2023; 29:e202301639. [PMID: 37265227 DOI: 10.1002/chem.202301639] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 06/01/2023] [Accepted: 06/02/2023] [Indexed: 06/03/2023]
Abstract
A series of donor-π-acceptor-π-donor (D-π-A-π-D) compounds based on naphthalendiimide (NDI) and perylenediimide (PDI) central cores combined with triphenylamine and phenylcarbazole donor groups have been synthesized, characterized and tested in top-contact/bottom gate organic field-effect transistors (OFETs). The results showed high electron mobilities, up to 0.3 cm2 V-1 s-1 , in the case of NDI derivatives and moderate values of around 10-3 cm2 V-1 s-1 for PDI-based semiconductors. Quantum chemical calculations were performed in order to support the experimental data. The results suggest that adequate molecular characteristics and larger crystalline domains in NDI vs. PDI semiconducting films may be the reasons behind the enhanced electrical properties of NDI derivatives. Furthermore, when the lateral donor substituents are triphenylamine groups, the mobilities were slightly higher in comparison to phenylcarbazole donor groups due to an improved electron-donating character. Other characterization techniques, such as AFM, X-ray diffraction or spectroelectrochemistry, among others, have been performed to analyze supramolecular order, charge carriers' nature and stability, parameters closely related to charge transport characteristics.
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Affiliation(s)
- Sergio Gámez-Valenzuela
- Department of Physical Chemistry, University of Malaga Campus de Teatinos s/n, Malaga, 29071, Spain
| | - Iván Torres-Moya
- Department of Inorganic, Organic Chemistry and Biochemistry University of Castilla-La Mancha-IRICA, Faculty of Science and Chemical Technologies, Ciudad Real, 13071, Spain
- Department of Organic Chemistry, University of Murcia Campus of Espinardo, Murcia, 30005, Spain
| | - Abelardo Sánchez
- Department of Inorganic, Organic Chemistry and Biochemistry University of Castilla-La Mancha-IRICA, Faculty of Science and Chemical Technologies, Ciudad Real, 13071, Spain
| | - Beatriz Donoso
- Department of Inorganic, Organic Chemistry and Biochemistry University of Castilla-La Mancha-IRICA, Faculty of Science and Chemical Technologies, Ciudad Real, 13071, Spain
| | | | - M Carmen Ruiz Delgado
- Department of Physical Chemistry, University of Malaga Campus de Teatinos s/n, Malaga, 29071, Spain
| | - Pilar Prieto
- Department of Inorganic, Organic Chemistry and Biochemistry University of Castilla-La Mancha-IRICA, Faculty of Science and Chemical Technologies, Ciudad Real, 13071, Spain
| | - Rocío Ponce Ortiz
- Department of Physical Chemistry, University of Malaga Campus de Teatinos s/n, Malaga, 29071, Spain
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Strickland J, Haugabrooks E, Allen DG, Balottin LB, Hirabayashi Y, Kleinstreuer NC, Kojima H, Nishizawa C, Prieto P, Ratzlaff DE, Jeong J, Lee J, Yang Y, Lin P, Sullivan K, Casey W. International regulatory uses of acute systemic toxicity data and integration of new approach methodologies. Crit Rev Toxicol 2023; 53:385-411. [PMID: 37646804 PMCID: PMC10592330 DOI: 10.1080/10408444.2023.2240852] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 07/17/2023] [Accepted: 07/17/2023] [Indexed: 09/01/2023]
Abstract
Chemical regulatory authorities around the world require systemic toxicity data from acute exposures via the oral, dermal, and inhalation routes for human health risk assessment. To identify opportunities for regulatory uses of non-animal replacements for these tests, we reviewed acute systemic toxicity testing requirements for jurisdictions that participate in the International Cooperation on Alternative Test Methods (ICATM): Brazil, Canada, China, the European Union, Japan, South Korea, Taiwan, and the USA. The chemical sectors included in our review of each jurisdiction were cosmetics, consumer products, industrial chemicals, pharmaceuticals, medical devices, and pesticides. We found acute systemic toxicity data were most often required for hazard assessment, classification, and labeling, and to a lesser extent quantitative risk assessment. Where animal methods were required, animal reduction methods were typically recommended. For many jurisdictions and chemical sectors, non-animal alternatives are not accepted, but several jurisdictions provide guidance to support the use of test waivers to reduce animal use for specific applications. An understanding of international regulatory requirements for acute systemic toxicity testing will inform ICATM's strategy for the development, acceptance, and implementation of non-animal alternatives to assess the health hazards and risks associated with acute toxicity.
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Affiliation(s)
- Judy Strickland
- Inotiv, Inc., P.O. Box 13501, Research Triangle Park, NC 27709, USA
| | - Esther Haugabrooks
- Physicians Committee for Responsible Medicine, 5100 Wisconsin Ave., NW, Suite 400, Washington, DC 20016, USA
| | - David G. Allen
- Inotiv, Inc., P.O. Box 13501, Research Triangle Park, NC 27709, USA
| | - Luciene B. Balottin
- National Institute of Metrology, Quality and Technology (INMETRO), Av. Nossa Senhora das Graças, no. 50, 22250-020, Duque de Caxias, RJ, Brazil
| | - Yoko Hirabayashi
- Center for Biological Safety and Research, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki 210-9501, Japan
| | - Nicole C. Kleinstreuer
- National Toxicology Program Interagency Center for the Evaluation of Alternative Toxicological Methods, Division of Translational Toxicology, National Institute of Environmental Health Sciences, P.O. Box 12233, Research Triangle Park, NC 27709, USA
| | - Hajime Kojima
- Japanese Center for the Validation of Alternative Methods, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki 210-9501, Japan
| | - Claudio Nishizawa
- Brazilian Health Regulatory Agency (ANVISA), Setor de Indústria e Abastecimento (SIA) - Trecho 5, Área Especial 57, Lote 200, 71205-050 - Brasilia /DF, Brazil
| | - Pilar Prieto
- European Commission, Joint Research Centre (JRC), Ispra, Italy
| | - Deborah E. Ratzlaff
- New Substances Assessment and Control Bureau, Healthy Environments and Consumer Safety Branch, Health Canada, Ottawa, ON, K1A 0K9 Canada
| | - Jayoung Jeong
- Toxicological Evaluation and Research Department, National Institute of Food and Drug Safety Evaluation, 187 Osongsaengmyeong 2(i)-ro, Osong-eup, Heungdoek-gu, Cheongju-si, Chungcheongbuk-do, 28159, Korea
| | - JinHee Lee
- Toxicological Evaluation and Research Department, National Institute of Food and Drug Safety Evaluation, 187 Osongsaengmyeong 2(i)-ro, Osong-eup, Heungdoek-gu, Cheongju-si, Chungcheongbuk-do, 28159, Korea
| | - Ying Yang
- Guangdong Provincial Center for Disease Control and Prevention, Qunxian Road 160, Panyu strict, Guangzhou, China 510430
| | - Pinpin Lin
- National Health Research Institutes, No. 35, Keyan Road, Zhunan Town, Miaoli County 350, Taiwan
| | - Kristie Sullivan
- Physicians Committee for Responsible Medicine, 5100 Wisconsin Ave., NW, Suite 400, Washington, DC 20016, USA
| | - Warren Casey
- National Toxicology Program Interagency Center for the Evaluation of Alternative Toxicological Methods, Division of Translational Toxicology, National Institute of Environmental Health Sciences, P.O. Box 12233, Research Triangle Park, NC 27709, USA
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Iglesias D, Martín R, Álvarez-Sánchez MÁ, Badía-Domínguez I, Vázquez E, Carmen Ruiz Delgado M, Prieto P, Antonia Herrero M. Understanding the Raman enhancement of carbon nanohorns labelled with organic dyes. Nanoscale 2023. [PMID: 37401747 DOI: 10.1039/d3nr01357j] [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: 07/05/2023]
Abstract
Carbon nanohorns have been non-covalently functionalized with two different benzothiadiazoloquinoxalines prepared via Stille cross-coupling reactions under solvent-free conditions and microwave irradiation. The close interactions between these organic molecules and the nanostructures resulted in a prominent Raman enhancement, which makes them attractive candidates for multiple applications. A complete experimental physico-chemical characterization has been combined with in silico studies to understand these phenomena. The processability of the hybrids was exploited to prepare homogeneous films on substrates with different natures.
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Affiliation(s)
- Daniel Iglesias
- Facultad de Ciencias y Tecnologías Químicas, Universidad de Castilla-La Mancha (UCLM), 13071 Ciudad Real, Spain.
- Instituto Regional de investigación Científica Aplicada (IRICA), 13071 Ciudad Real, Spain
| | - Raúl Martín
- Facultad de Ciencias y Tecnologías Químicas, Universidad de Castilla-La Mancha (UCLM), 13071 Ciudad Real, Spain.
- Instituto de Ciencia de Materiales de Madrid, CSIC Cantoblanco, 28049, Madrid, Spain
| | - Miguel Á Álvarez-Sánchez
- Facultad de Ciencias y Tecnologías Químicas, Universidad de Castilla-La Mancha (UCLM), 13071 Ciudad Real, Spain.
- Instituto Regional de investigación Científica Aplicada (IRICA), 13071 Ciudad Real, Spain
| | - Irene Badía-Domínguez
- Department of Physical Chemistry, University of Malaga, Campus de Teatinos s/n, Malaga 29071, Spain
| | - Ester Vázquez
- Facultad de Ciencias y Tecnologías Químicas, Universidad de Castilla-La Mancha (UCLM), 13071 Ciudad Real, Spain.
- Instituto Regional de investigación Científica Aplicada (IRICA), 13071 Ciudad Real, Spain
| | - M Carmen Ruiz Delgado
- Department of Physical Chemistry, University of Malaga, Campus de Teatinos s/n, Malaga 29071, Spain
| | - Pilar Prieto
- Facultad de Ciencias y Tecnologías Químicas, Universidad de Castilla-La Mancha (UCLM), 13071 Ciudad Real, Spain.
| | - M Antonia Herrero
- Facultad de Ciencias y Tecnologías Químicas, Universidad de Castilla-La Mancha (UCLM), 13071 Ciudad Real, Spain.
- Instituto Regional de investigación Científica Aplicada (IRICA), 13071 Ciudad Real, Spain
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10
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Tardío C, Álvarez Conde J, Rodríguez AM, Prieto P, Hoz ADL, Cabanillas-González J, Torres-Moya I. Donor-Acceptor-Donor 1 H-Benzo[ d]imidazole Derivatives as Optical Waveguides. Molecules 2023; 28:4631. [PMID: 37375189 DOI: 10.3390/molecules28124631] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Revised: 06/04/2023] [Accepted: 06/06/2023] [Indexed: 06/29/2023] Open
Abstract
A new series of donor-acceptor-donor (D-A-D) structures derived from arylethynyl 1H-benzo[d]imidazole was synthesized and processed into single crystals with the goal of testing such crystals' ability to act as optical waveguides. Some crystals displayed luminescence in the 550-600 nm range and optical waveguiding behavior with optical loss coefficients around 10-2 dB/μm, which indicated a notable light transport. The crystalline structure, confirmed by X-ray diffraction, contains internal channels that are important for light propagation, as we previously reported. The combination of a 1D assembly, a single crystal structure, and notable light emission properties with low losses from self-absorption made 1H-benzo[d]imidazole derivatives appealing compounds for optical waveguide applications.
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Affiliation(s)
- Carlos Tardío
- Department of Inorganic, Organic Chemistry and Biochemistry, Faculty of Chemical Science and Technologies, University of Castilla-La Mancha-IRICA, 13071 Ciudad Real, Spain
| | - Javier Álvarez Conde
- Madrid Institute for Advanced Studies, IMDEA Nanociencia, Calle Faraday 9, Ciudad Universitaria de Cantoblanco, 28049 Madrid, Spain
| | - Ana María Rodríguez
- Department of Inorganic, Organic Chemistry and Biochemistry, Faculty of Chemical Science and Technologies, University of Castilla-La Mancha-IRICA, 13071 Ciudad Real, Spain
| | - Pilar Prieto
- Department of Inorganic, Organic Chemistry and Biochemistry, Faculty of Chemical Science and Technologies, University of Castilla-La Mancha-IRICA, 13071 Ciudad Real, Spain
| | - Antonio de la Hoz
- Department of Inorganic, Organic Chemistry and Biochemistry, Faculty of Chemical Science and Technologies, University of Castilla-La Mancha-IRICA, 13071 Ciudad Real, Spain
| | - Juan Cabanillas-González
- Madrid Institute for Advanced Studies, IMDEA Nanociencia, Calle Faraday 9, Ciudad Universitaria de Cantoblanco, 28049 Madrid, Spain
| | - Iván Torres-Moya
- Department of Organic Chemistry, Faculty of Chemical Sciences, Campus of Espinardo, University of Murcia, 30010 Murcia, Spain
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11
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Pronina M, Grofulovic J, Castillo E, Prieto P, Igualada A. Narrative Abilities at Age 3 Are Associated Positively With Gesture Accuracy but Negatively With Gesture Rate. J Speech Lang Hear Res 2023; 66:951-965. [PMID: 36763840 DOI: 10.1044/2022_jslhr-21-00414] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
PURPOSE Though the frequency of gesture use by infants has been related to the development of different language abilities in the initial stages of language acquisition, less is known about whether this frequency (or "gesture rate") continues to correlate with language measures in later stages of language acquisition, or whether the relation to language skills also depends on the accuracy with which such gestures are produced (or reproduced). This study sets out to explore whether preschoolers' narrative abilities are related to these two variables, namely, gesture rate and gesture accuracy. METHOD A total of 31 typically developing 3- to 4-year-old children participated in a multimodal imitation task, a context-based gesture elicitation task, and a narrative retelling task. RESULTS Results showed that there was a significant positive correlation between the children's narrative scores and their gesture accuracy scores, whereas higher rates of gesture use did not correlate with higher levels of narrative skill. Further multimodal regression analysis confirmed that gesture accuracy was a positive predictor of narrative performance, and moreover, showed that gesture rate was a negative predictor. CONCLUSIONS The fact that both gesture accuracy and gesture rate are strongly and differently linked to oral language abilities supports the claim that language and gesture are highly complex systems, and that complementary measures of gesture performance can help us assess with greater granularity the relationship between gesture and language development. These findings highlight the need to use gesture during clinical assessments as an informative indicator of language development and suggest that future research should further investigate the value of multimodal programs in the treatment of language and communication disorders.
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Affiliation(s)
- Mariia Pronina
- Department of Translation and Language Sciences, Universitat Pompeu Fabra, Barcelona, Spain
| | | | - Eva Castillo
- Department of Translation and Language Sciences, Universitat Pompeu Fabra, Barcelona, Spain
| | - Pilar Prieto
- Department of Translation and Language Sciences, Universitat Pompeu Fabra, Barcelona, Spain
- Institució Catalana de Recerca i Estudis Avançats, Barcelona, Spain
| | - Alfonso Igualada
- Faculty of Psychology and Education Sciences, Universitat Oberta de Catalunya, Barcelona, Spain
- Institut Guttmann, Institut Universitari de Neurorehabilitació, Barcelona, Spain
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12
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Florit-Pons J, Vilà-Giménez I, Rohrer PL, Prieto P. Multimodal Development in Children's Narrative Speech: Evidence for Tight Gesture-Speech Temporal Alignment Patterns as Early as 5 Years Old. J Speech Lang Hear Res 2023; 66:888-900. [PMID: 36809062 DOI: 10.1044/2022_jslhr-22-00451] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
PURPOSE This study aims to analyze the development of gesture-speech temporal alignment patterns in children's narrative speech from a longitudinal perspective and, specifically, the potential differences between different gesture types, namely, gestures that imagistically portray or refer to semantic content in speech (i.e., referential gestures) and those that lack semantic content (i.e., non-referential gestures). METHOD This study uses an audiovisual corpus of narrative productions (n = 332) from 83 children (43 girls, 40 boys) who participated in a narrative retelling task at two time points in development (at 5-6 and 7-9 years of age). The 332 narratives were coded for both manual co-speech gesture types and prosody. Gestural annotations included gesture phasing (i.e., preparation, stroke, hold, and recovery) and gesture types (in terms of referentiality, i.e., referential and non-referential), whereas prosodic annotations included pitch-accented syllables. RESULTS Results revealed that by ages 5-6 years, children already temporally aligned the stroke of both referential and non-referential gestures with pitch-accented syllables, showing no significant differences between these two gesture types. CONCLUSIONS The results of the present study contribute to the view that both referential and non-referential gestures are aligned with pitch accentuation, and therefore, this is not only a characteristic of non-referential gestures. Our results also add support to McNeill's phonological synchronization rule from a developmental perspective and indirectly back up recent theories about the biomechanics of gesture-speech alignment, suggesting that this is an inherent ability of oral communication.
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Affiliation(s)
- Júlia Florit-Pons
- Grup d'Estudis de Prosòdia, Department of Translation and Language Sciences, Universitat Pompeu Fabra, Barcelona, Catalonia, Spain
| | - Ingrid Vilà-Giménez
- Grup d'Estudis de Prosòdia, Department of Translation and Language Sciences, Universitat Pompeu Fabra, Barcelona, Catalonia, Spain
- Department of Subject-Specific Education, Universitat de Girona, Catalonia, Spain
| | - Patrick Louis Rohrer
- Grup d'Estudis de Prosòdia, Department of Translation and Language Sciences, Universitat Pompeu Fabra, Barcelona, Catalonia, Spain
- Laboratoire de Linguistique de Nantes, Nantes Université, France
| | - Pilar Prieto
- Grup d'Estudis de Prosòdia, Department of Translation and Language Sciences, Universitat Pompeu Fabra, Barcelona, Catalonia, Spain
- Institució Catalana de Recerca i Estudis Avançats, Barcelona, Catalonia, Spain
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13
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Castillo E, Pronina M, Hübscher I, Prieto P. Narrative performance and sociopragmatic abilities in preschool children are linked to multimodal imitation skills - CORRIGENDUM. J Child Lang 2023; 50:494. [PMID: 35027096 DOI: 10.1017/s0305000921000933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Affiliation(s)
- Eva Castillo
- Department of Translation and Language Sciences, Universitat Pompeu Fabra
| | - Mariia Pronina
- Department of Translation and Language Sciences, Universitat Pompeu Fabra
| | - Iris Hübscher
- URPP Language and Space, University of Zurich
- Department of Applied Linguistics, Zurich University of Applied Sciences
| | - Pilar Prieto
- Department of Translation and Language Sciences, Universitat Pompeu Fabra
- Institució Catalana de Recerca i Estudis Avançats (ICREA)
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14
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Aparicio MA, Lucena C, García MJ, Ruiz-Castilla FJ, Jiménez-Adrián P, López-Berges MS, Prieto P, Alcántara E, Pérez-Vicente R, Ramos J, Romera FJ. The nonpathogenic strain of Fusarium oxysporum FO12 induces Fe deficiency responses in cucumber (Cucumis sativus L.) plants. Planta 2023; 257:50. [PMID: 36757472 PMCID: PMC9911487 DOI: 10.1007/s00425-023-04079-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 01/18/2023] [Indexed: 05/16/2023]
Abstract
MAIN CONCLUSION FO12 strain enhances Fe deficiency responses in cucumber plants, probably through the production of ethylene and NO in the subapical regions of the roots. Rhizosphere microorganisms can elicit induced systemic resistance (ISR) in plants. This type of resistance involves complex mechanisms that confer protection to the plant against pathogen attack. Additionally, it has been reported by several studies that ISR and Fe deficiency responses are modulated by common pathways, involving some phytohormones and signaling molecules, like ethylene and nitric oxide (NO). The aim of this study was to determine whether the nonpathogenic strain of Fusarium oxysporum FO12 can induce Fe deficiency responses in cucumber (Cucumis sativus L.) plants. Our results demonstrate that the root inoculation of cucumber plants with the FO12 strain promotes plant growth after several days of cultivation, as well as rhizosphere acidification and enhancement of ferric reductase activity. Moreover, Fe-related genes, such as FRO1, IRT1 and HA1, are upregulated at certain times after FO12 inoculation either upon Fe-deficiency or Fe-sufficient conditions. Furthermore, it has been found that this fungus colonizes root cortical tissues, promoting the upregulation of ethylene synthesis genes and NO production in the root subapical regions. To better understand the effects of the FO12 strain on field conditions, cucumber plants were inoculated and cultivated in a calcareous soil under greenhouse conditions. The results obtained show a modification of some physiological parameters in the inoculated plants, such as flowering and reduction of tissue necrosis. Overall, the results suggest that the FO12 strain could have a great potential as a Fe biofertilizer and biostimulant.
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Affiliation(s)
- Miguel A Aparicio
- Departamento de Química Agrícola, Edafología y Microbiología, Edificio Severo Ochoa (C-6), Campus de Excelencia Internacional Agroalimentario de Rabanales (ceiA3), University of Córdoba, 14014, Córdoba, Spain
| | - Carlos Lucena
- Departamento de Agronomía, Edificio Celestino Mutis (C-4), Campus de Excelencia Internacional Agroalimentario de Rabanales (ceiA3), University of Córdoba, 14014, Córdoba, Spain.
| | - María J García
- Departamento de Agronomía, Edificio Celestino Mutis (C-4), Campus de Excelencia Internacional Agroalimentario de Rabanales (ceiA3), University of Córdoba, 14014, Córdoba, Spain
| | - Francisco J Ruiz-Castilla
- Departamento de Química Agrícola, Edafología y Microbiología, Edificio Severo Ochoa (C-6), Campus de Excelencia Internacional Agroalimentario de Rabanales (ceiA3), University of Córdoba, 14014, Córdoba, Spain
| | - Pablo Jiménez-Adrián
- Departamento de Química Agrícola, Edafología y Microbiología, Edificio Severo Ochoa (C-6), Campus de Excelencia Internacional Agroalimentario de Rabanales (ceiA3), University of Córdoba, 14014, Córdoba, Spain
| | - Manuel S López-Berges
- Departamento de Genética, Edificio Gregor Mendel (C-5), Campus de Excelencia Internacional Agroalimentario de Rabanales (ceiA3), University of Córdoba, 14014, Córdoba, Spain
| | - Pilar Prieto
- Departamento de Mejora Genética, Instituto de Agricultura Sostenible (IAS), Consejo Superior de Investigaciones Científicas (CSIC), 14004, Córdoba, Spain
| | - Esteban Alcántara
- Departamento de Agronomía, Edificio Celestino Mutis (C-4), Campus de Excelencia Internacional Agroalimentario de Rabanales (ceiA3), University of Córdoba, 14014, Córdoba, Spain
| | - Rafael Pérez-Vicente
- Departamento de Botánica, Ecología y Fisiología Vegetal, Edificio Celestino Mutis (C-4), Campus de Excelencia Internacional Agroalimentario de Rabanales (ceiA3), University of Córdoba, 14014, Córdoba, Spain
| | - José Ramos
- Departamento de Química Agrícola, Edafología y Microbiología, Edificio Severo Ochoa (C-6), Campus de Excelencia Internacional Agroalimentario de Rabanales (ceiA3), University of Córdoba, 14014, Córdoba, Spain
| | - Francisco J Romera
- Departamento de Agronomía, Edificio Celestino Mutis (C-4), Campus de Excelencia Internacional Agroalimentario de Rabanales (ceiA3), University of Córdoba, 14014, Córdoba, Spain
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15
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Granados-Miralles C, Serrano A, Prieto P, Guzmán-Mínguez J, Prieto J, Friedel A, García-Martín E, Fernández J, Quesada A. Quantifying Li-content for Compositional Tailoring of Lithium Ferrite Ceramics. Ann Ital Chir 2023. [DOI: 10.1016/j.jeurceramsoc.2023.02.011] [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: 02/07/2023]
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16
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Castillo E, Pronina M, Hübscher I, Prieto P. Narrative Performance and Sociopragmatic Abilities in Preschool Children are Linked to Multimodal Imitation Skills. J Child Lang 2023; 50:52-77. [PMID: 36503549 DOI: 10.1017/s0305000921000404] [Citation(s) in RCA: 1] [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] [Indexed: 06/17/2023]
Abstract
Over recent decades much research has analyzed the relevance of 9- to 20- month-old infants' early imitation skills (object- and language-based imitation) for language development. Yet there have been few systematic comparisons of the joint relevance of these imitative behaviors later on in development. This correlational study investigated whether multimodal imitation (gestural, prosodic, and lexical components) and object-based imitation are related to narratives and sociopragmatics in preschoolers. Thirty-one typically developing 3- to 4-year-old children performed four tasks to assess multimodal imitation, object-based imitation, narrative abilities, and sociopragmatic abilities. Results revealed that both narrative and sociopragmatic skills were significantly related to multimodal imitation, but not to object-based imitation, indicating that preschoolers' ability to imitate socially relevant multimodal cues is strongly related to language and sociocommunicative skills. Therefore, this evidence supports a broader conceptualization of imitation behaviors in the field of language development that systematically integrates prosodic, gestural, and verbal linguistic patterns.
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Affiliation(s)
- Eva Castillo
- Department of Translation and Language Sciences, Universitat Pompeu Fabra
| | - Mariia Pronina
- Department of Translation and Language Sciences, Universitat Pompeu Fabra
| | - Iris Hübscher
- URPP Language and Space, University of Zurich
- Department of Applied Linguistics, Zurich University of Applied Sciences
| | - Pilar Prieto
- Department of Translation and Language Sciences, Universitat Pompeu Fabra
- Institució Catalana de Recerca i Estudis Avançats (ICREA)
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17
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Pons C, Galindo JM, Martín JC, Torres-Moya I, Merino S, Herrero MA, Vázquez E, Prieto P, Vallés JA. Propagation Losses Estimation in a Cationic-Network-Based Hydrogel Waveguide. Micromachines (Basel) 2022; 13:2253. [PMID: 36557552 PMCID: PMC9787014 DOI: 10.3390/mi13122253] [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] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 12/09/2022] [Accepted: 12/12/2022] [Indexed: 06/17/2023]
Abstract
A method based on the photographic recording of the power distribution laterally diffused by cationic-network (CN) hydrogel waveguides is first checked against the well-established cut-back method and then used to determine the different contributions to optical power attenuation along the hydrogel-based waveguide. Absorption and scattering loss coefficients are determined for 450 nm, 532 nm and 633 nm excitation. The excellent optical loss values obtained (0.32-1.95 dB/cm), similar to others previously described, indicate their potential application as waveguides in different fields, including soft robotic and light-based therapies.
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Affiliation(s)
- Carolina Pons
- Departamento de Física Aplicada-I3A, Facultad de Ciencias, Universidad de Zaragoza, C/P. Cerbuna 12, 50009 Zaragoza, Spain
| | - Josué M. Galindo
- Departamento de Química Inorgánica, Orgánica y Bioquímica, Facultad de Ciencias y Tecnologías Químicas-IRICA, Universidad de Castilla-La Mancha, 13071 Ciudad Real, Spain
- Instituto Regional de Investigación Científica Aplicada (IRICA), UCLM, 13071 Ciudad Real, Spain
| | - Juan C. Martín
- Departamento de Física Aplicada-I3A, Facultad de Ciencias, Universidad de Zaragoza, C/P. Cerbuna 12, 50009 Zaragoza, Spain
| | - Iván Torres-Moya
- Departamento de Química Inorgánica, Orgánica y Bioquímica, Facultad de Ciencias y Tecnologías Químicas-IRICA, Universidad de Castilla-La Mancha, 13071 Ciudad Real, Spain
| | - Sonia Merino
- Departamento de Química Inorgánica, Orgánica y Bioquímica, Facultad de Ciencias y Tecnologías Químicas-IRICA, Universidad de Castilla-La Mancha, 13071 Ciudad Real, Spain
- Instituto Regional de Investigación Científica Aplicada (IRICA), UCLM, 13071 Ciudad Real, Spain
| | - M. Antonia Herrero
- Departamento de Química Inorgánica, Orgánica y Bioquímica, Facultad de Ciencias y Tecnologías Químicas-IRICA, Universidad de Castilla-La Mancha, 13071 Ciudad Real, Spain
- Instituto Regional de Investigación Científica Aplicada (IRICA), UCLM, 13071 Ciudad Real, Spain
| | - Ester Vázquez
- Departamento de Química Inorgánica, Orgánica y Bioquímica, Facultad de Ciencias y Tecnologías Químicas-IRICA, Universidad de Castilla-La Mancha, 13071 Ciudad Real, Spain
- Instituto Regional de Investigación Científica Aplicada (IRICA), UCLM, 13071 Ciudad Real, Spain
| | - Pilar Prieto
- Departamento de Química Inorgánica, Orgánica y Bioquímica, Facultad de Ciencias y Tecnologías Químicas-IRICA, Universidad de Castilla-La Mancha, 13071 Ciudad Real, Spain
| | - Juan A. Vallés
- Departamento de Física Aplicada-I3A, Facultad de Ciencias, Universidad de Zaragoza, C/P. Cerbuna 12, 50009 Zaragoza, Spain
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18
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Jin W, Goryawala M, Azzam G, Prieto P, Ivan M, Fuente MDL, Mellon E. Can Spectroscopic Magnetic Resonance Imaging be Used to Delineate Recurrent Glioblastoma? Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.832] [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: 11/17/2022]
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19
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Westmoreland C, Bender HJ, Doe JE, Jacobs MN, Kass GE, Madia F, Mahony C, Manou I, Maxwell G, Prieto P, Roggeband R, Sobanski T, Schütte K, Worth AP, Zvonar Z, Cronin MT. Use of New Approach Methodologies (NAMs) in regulatory decisions for chemical safety: Report from an EPAA Deep Dive Workshop. Regul Toxicol Pharmacol 2022; 135:105261. [DOI: 10.1016/j.yrtph.2022.105261] [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] [Received: 07/13/2022] [Accepted: 09/07/2022] [Indexed: 11/30/2022]
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20
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Alfaro‐Rodríguez M, Prieto P, García MC, Martín‐Piñero MJ, Muñoz J. Influence of nanoemulsion/gum ratio on droplet size distribution, rheology and physical stability of nanoemulgels containing inulin and omega-3 fatty acids. J Sci Food Agric 2022; 102:6397-6403. [PMID: 35553436 PMCID: PMC9796686 DOI: 10.1002/jsfa.12005] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 04/05/2022] [Accepted: 05/12/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND New consumer habits are forcing the food industry to develop new and healthy products. In response to this tendency, in this investigation, we obtained nanoemulgels by microfluidization containing inulin fibre and omega-3 fatty acids. First, the influence of the number of microfluidization cycles on the physical properties of the nanoemulsions was studied. Subsequently, an advanced-performance xanthan gum was added to the nanoemulsion in different nanoemulsion/xanthan ratios (1:1, 2:1, 3:1, 4:1, 1:2, and 1:3). RESULTS Laser diffraction, multiple light scattering, and rheology techniques were used to characterize nanoemulsions and the corresponding nanoemulgels. The nanoemulsion with the lowest Sauter mean diameter (138 nm) and the longest physical stability was obtained after three passes through a microfluidization device at a fixed pressure of 103 421 kPa. Thus, these processing conditions were always used to obtain the nanoemulsion; these were subsequently mixed with a xanthan gum solution to produce nanoemulgels that showed weak gel-like viscoelastic and shear-thinning flow behaviours. A decrease in the nanoemulsion/xanthan ratio (i.e. by an increase in the content of xanthan gum in the nanoemulgel) increased the viscoelastic moduli and the zero shear viscosity values. A rise in the droplet size was observed with aging time, probably due to flocculation. The nanoemulsion/xanthan gum mass ratio of 1:3 yielded the most stable nanoemulgel. CONCLUSIONS This work is a contribution to the development of functional foods. It has been demonstrated that it is possible to obtain a stable nanoemulgel-based food matrix containing fibre and omega-3 fatty acids. © 2022 The Authors. Journal of The Science of Food and Agriculture published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
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Affiliation(s)
| | - P. Prieto
- Departamento de Ingeniería Química, Escuela Politécnica SuperiorUniversidad de SevillaSevilleSpain
| | - M. C. García
- Departamento de Ingeniería Química, Escuela Politécnica SuperiorUniversidad de SevillaSevilleSpain
| | - M. J. Martín‐Piñero
- Departamento de Ingeniería Química, Escuela Politécnica SuperiorUniversidad de SevillaSevilleSpain
| | - J. Muñoz
- Departamento de Ingeniería Química, Escuela Politécnica SuperiorUniversidad de SevillaSevilleSpain
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21
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Maziero D, Azzam G, Cullison K, Ford J, Meshman J, Prieto P, Fuente MDL, Mellon E. Glioblastoma Response during Chemoradiation by Daily Quantitative Multiparametric MRI. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.839] [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: 11/17/2022]
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22
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Torres-Moya I, Harbuzaru A, Donoso B, Prieto P, Ponce Ortiz R, Díaz-Ortiz Á. Microwave Irradiation as a Powerful Tool for the Preparation of n-Type Benzotriazole Semiconductors with Applications in Organic Field-Effect Transistors. Molecules 2022; 27:molecules27144340. [PMID: 35889212 PMCID: PMC9323175 DOI: 10.3390/molecules27144340] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 06/20/2022] [Accepted: 07/02/2022] [Indexed: 12/10/2022] Open
Abstract
In this work, as an equivocal proof of the potential of microwave irradiation in organic synthesis, a complex pyrazine-decorated benzotriazole derivative that is challenging to prepare under conventional conditions has been obtained upon microwave irradiation, thus efficiently improving the process and yields, dramatically decreasing the reaction times and resulting in an environmentally friendly synthetic procedure. In addition, this useful derivative could be applied in organic electronics, specifically in organic field-effect transistors (OFETs), exhibiting the highest electron mobilities reported to date for benzotriazole discrete molecules, of around 10−2 cm2V−1s−1.
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Affiliation(s)
- Iván Torres-Moya
- Department of Inorganic, Organic Chemistry and Biochemistry, Faculty of Science and Chemical Technologies, University of Castilla-La Mancha-IRICA, 13071 Ciudad Real, Spain; (B.D.); (P.P.)
- Correspondence: (I.T.-M.); (R.P.O.); (Á.D.-O.)
| | - Alexandra Harbuzaru
- Department of Physical Chemistry, Faculty of Sciences, University of Málaga, Campus of Teatinos s/n, 29071 Malaga, Spain;
| | - Beatriz Donoso
- Department of Inorganic, Organic Chemistry and Biochemistry, Faculty of Science and Chemical Technologies, University of Castilla-La Mancha-IRICA, 13071 Ciudad Real, Spain; (B.D.); (P.P.)
| | - Pilar Prieto
- Department of Inorganic, Organic Chemistry and Biochemistry, Faculty of Science and Chemical Technologies, University of Castilla-La Mancha-IRICA, 13071 Ciudad Real, Spain; (B.D.); (P.P.)
| | - Rocío Ponce Ortiz
- Department of Physical Chemistry, Faculty of Sciences, University of Málaga, Campus of Teatinos s/n, 29071 Malaga, Spain;
- Correspondence: (I.T.-M.); (R.P.O.); (Á.D.-O.)
| | - Ángel Díaz-Ortiz
- Department of Inorganic, Organic Chemistry and Biochemistry, Faculty of Science and Chemical Technologies, University of Castilla-La Mancha-IRICA, 13071 Ciudad Real, Spain; (B.D.); (P.P.)
- Correspondence: (I.T.-M.); (R.P.O.); (Á.D.-O.)
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23
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González Moreno A, de Cózar A, Prieto P, Domínguez E, Heredia A. Radiationless mechanism of UV deactivation by cuticle phenolics in plants. Nat Commun 2022; 13:1786. [PMID: 35379806 PMCID: PMC8979964 DOI: 10.1038/s41467-022-29460-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 03/10/2022] [Indexed: 12/31/2022] Open
Abstract
Hydroxycinnamic acids present in plant cuticles, the interphase and the main protective barrier between the plant and the environment, exhibit singular photochemical properties that could allow them to act as a UV shield. Here, we employ transient absorption spectroscopy on isolated cuticles and leaf epidermises to study in situ the photodynamics of these molecules in the excited state. Based on quantum chemical calculations on p-coumaric acid, the main phenolic acid present in the cuticle, we propose a model in which cuticle phenolics display a photoprotective mechanism based in an ultrafast and non-radiative excited state deactivation combined with fluorescence emission. As such, the cuticle can be regarded as the first and foremost protective barrier against UV radiation. This photostable and photodynamic mechanism seems to be universal in land plants giving a special role and function to the presence of different aromatic domains in plant cuticles and epidermises. Phenolics are abundant in plant cuticles. Here, via transient absorption spectroscopy and quantum chemical calculations, the authors propose a model by which cuticle phenolics provide photoprotection due to ultrafast and non-radiative excited state deactivation combined with fluorescence emission.
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Rohrer PL, Florit-Pons J, Vilà-Giménez I, Prieto P. Children Use Non-referential Gestures in Narrative Speech to Mark Discourse Elements Which Update Common Ground. Front Psychol 2022; 12:661339. [PMID: 35087436 PMCID: PMC8787325 DOI: 10.3389/fpsyg.2021.661339] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Accepted: 12/01/2021] [Indexed: 12/05/2022] Open
Abstract
While recent studies have claimed that non-referential gestures (i.e., gestures that do not visually represent any semantic content in speech) are used to mark discourse-new and/or -accessible referents and focused information in adult speech, to our knowledge, no prior investigation has studied the relationship between information structure (IS) and gesture referentiality in children’s narrative speech from a developmental perspective. A longitudinal database consisting of 332 narratives performed by 83 children at two different time points in development was coded for IS and gesture referentiality (i.e., referential and non-referential gestures). Results revealed that at both time points, both referential and non-referential gestures were produced more with information that moves discourse forward (i.e., focus) and predication (i.e., comment) rather than topical or background information. Further, at 7–9 years of age, children tended to use more non-referential gestures to mark focus and comment constituents than referential gestures. In terms of the marking of the newness of discourse referents, non-referential gestures already seem to play a key role at 5–6 years old, whereas referential gestures did not show any patterns. This relationship was even stronger at 7–9 years old. All in all, our findings offer supporting evidence that in contrast with referential gestures, non-referential gestures have been found to play a key role in marking IS, and that the development of this relationship solidifies at a period in development that coincides with a spurt in non-referential gesture production.
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Affiliation(s)
- Patrick Louis Rohrer
- Grup d'Estudis de Prosòdia (GrEP), Department of Translation and Language Sciences, Universitat Pompeu Fabra, Barcelona, Spain.,Université de Nantes, UMR 6310, Laboratoire de Linguistique de Nantes (LLING), Nantes, France
| | - Júlia Florit-Pons
- Grup d'Estudis de Prosòdia (GrEP), Department of Translation and Language Sciences, Universitat Pompeu Fabra, Barcelona, Spain
| | - Ingrid Vilà-Giménez
- Grup d'Estudis de Prosòdia (GrEP), Department of Translation and Language Sciences, Universitat Pompeu Fabra, Barcelona, Spain.,Department of Subject-Specific Education, Universitat de Girona, Girona, Spain
| | - Pilar Prieto
- Grup d'Estudis de Prosòdia (GrEP), Department of Translation and Language Sciences, Universitat Pompeu Fabra, Barcelona, Spain.,Institució Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Spain
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25
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Blasio F, Prieto P, Pradillo M, Naranjo T. Genomic and Meiotic Changes Accompanying Polyploidization. Plants (Basel) 2022; 11:plants11010125. [PMID: 35009128 PMCID: PMC8747196 DOI: 10.3390/plants11010125] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 12/24/2021] [Accepted: 12/29/2021] [Indexed: 05/04/2023]
Abstract
Hybridization and polyploidy have been considered as significant evolutionary forces in adaptation and speciation, especially among plants. Interspecific gene flow generates novel genetic variants adaptable to different environments, but it is also a gene introgression mechanism in crops to increase their agronomical yield. An estimate of 9% of interspecific hybridization has been reported although the frequency varies among taxa. Homoploid hybrid speciation is rare compared to allopolyploidy. Chromosome doubling after hybridization is the result of cellular defects produced mainly during meiosis. Unreduced gametes, which are formed at an average frequency of 2.52% across species, are the result of altered spindle organization or orientation, disturbed kinetochore functioning, abnormal cytokinesis, or loss of any meiotic division. Meiotic changes and their genetic basis, leading to the cytological diploidization of allopolyploids, are just beginning to be understood especially in wheat. However, the nature and mode of action of homoeologous recombination suppressor genes are poorly understood in other allopolyploids. The merger of two independent genomes causes a deep modification of their architecture, gene expression, and molecular interactions leading to the phenotype. We provide an overview of genomic changes and transcriptomic modifications that particularly occur at the early stages of allopolyploid formation.
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Affiliation(s)
- Francesco Blasio
- Departamento de Genética, Fisiología y Microbiología, Facultad de Biología, Universidad Complutense de Madrid, 28040 Madrid, Spain; (F.B.); (M.P.)
| | - Pilar Prieto
- Plant Breeding Department, Institute for Sustainable Agriculture, Agencia Estatal Consejo Superior de Investigaciones Científicas (CSIC), Alameda del Obispo s/n, Apartado 4048, 14080 Cordova, Spain;
| | - Mónica Pradillo
- Departamento de Genética, Fisiología y Microbiología, Facultad de Biología, Universidad Complutense de Madrid, 28040 Madrid, Spain; (F.B.); (M.P.)
| | - Tomás Naranjo
- Departamento de Genética, Fisiología y Microbiología, Facultad de Biología, Universidad Complutense de Madrid, 28040 Madrid, Spain; (F.B.); (M.P.)
- Correspondence:
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26
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Winter B, Oh GE, Hübscher I, Idemaru K, Brown L, Prieto P, Grawunder S. Rethinking the frequency code: a meta-analytic review of the role of acoustic body size in communicative phenomena. Philos Trans R Soc Lond B Biol Sci 2021; 376:20200400. [PMID: 34719247 PMCID: PMC8558772 DOI: 10.1098/rstb.2020.0400] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The widely cited frequency code hypothesis attempts to explain a diverse range of communicative phenomena through the acoustic projection of body size. The set of phenomena includes size sound symbolism (using /i/ to signal smallness in words such as teeny), intonational phonology (using rising contours to signal questions) and the indexing of social relations via vocal modulation, such as lowering one's voice pitch to signal dominance. Among other things, the frequency code is commonly interpreted to suggest that polite speech should be universally signalled via high pitch owing to the association of high pitch with small size and submissiveness. We present a cross-cultural meta-analysis of polite speech of 101 speakers from seven different languages. While we find evidence for cross-cultural variation, voice pitch is on average lower when speakers speak politely, contrary to what the frequency code predicts. We interpret our findings in the light of the fact that pitch has a multiplicity of possible communicative meanings. Cultural and contextual variation determines which specific meanings become manifest in a specific interactional context. We use the evidence from our meta-analysis to propose an updated view of the frequency code hypothesis that is based on the existence of many-to-many mappings between speech acoustics and communicative interpretations. This article is part of the theme issue ‘Voice modulation: from origin and mechanism to social impact (Part I)’.
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Affiliation(s)
- Bodo Winter
- Department of English Language and Linguistics, University of Birmingham, Birmingham, UK
| | - Grace Eunhae Oh
- Department of English Language and Literature, Konkuk University, Seoul, Korea
| | - Iris Hübscher
- URPP Language and Space, University of Zurich, Zurich, Switzerland
| | - Kaori Idemaru
- Department of East Asian Languages and Literatures, University of Oregon, Eugene, OR, USA
| | - Lucien Brown
- School of Languages, Literatures, Cultures and Linguistics, Monash University, Melbourne, Australia
| | - Pilar Prieto
- ICREA, Institució Catalana de Recerca i Estudis Avançats, Barcelona, Spain.,Departament de Traducció i Ciències del Llenguatge, Universitat Pompeu Fabra, Barcelona, Spain
| | - Sven Grawunder
- Department of Empirical Linguistics, University of Frankfurt, Frankfurt, Germany.,Department of Human Behavior, Ecology and Culture, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany
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27
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Tardío C, Pradeep VV, Martín R, Rodríguez AM, de la Hoz A, Jada R, Annadhasan M, Prieto P, Chandrasekar R. Polarised Optical Emission from Organic Anisotropic Microoptical Waveguides Grown by Ambient Pressure Vapour-deposition. Chem Asian J 2021; 16:3476-3480. [PMID: 34468084 DOI: 10.1002/asia.202100910] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 08/08/2021] [Revised: 08/31/2021] [Indexed: 11/06/2022]
Abstract
Ambient pressure chemical vapour deposition of 5,5'-bis((2-(trifluoromethyl)phenyl)ethynyl)-2,2'-bithiophene provides ultrapure needle-shaped crystals. The crystal's supramolecular structure consists of an array of hydrogen bonds and π-π interactions leading to anisotropic arrangements. The cyan emitting crystals exhibit an optical waveguiding tendency with guided polarised optical emissions due to anisotropic molecular arrangements.
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Affiliation(s)
- Carlos Tardío
- Departamento de Quimica Inorgánica, Orgánicay Bioqumica, Facultad de Ciencias Tecnologias Quimicas, Universidad de Castilla-La Mancha, 13071, Ciudad Real, Spain
| | - Vuppu Vinay Pradeep
- Advanced Organic Photonic Materials and Technolgy Laboratory, School of Chemistry, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad, 500 046, India
| | - Raúl Martín
- Departamento de Quimica Inorgánica, Orgánicay Bioqumica, Facultad de Ciencias Tecnologias Quimicas, Universidad de Castilla-La Mancha, 13071, Ciudad Real, Spain
| | - Ana M Rodríguez
- Departamento de Quimica Inorgánica, Orgánicay Bioqumica, Facultad de Ciencias Tecnologias Quimicas, Universidad de Castilla-La Mancha, 13071, Ciudad Real, Spain
| | - Antonio de la Hoz
- Departamento de Quimica Inorgánica, Orgánicay Bioqumica, Facultad de Ciencias Tecnologias Quimicas, Universidad de Castilla-La Mancha, 13071, Ciudad Real, Spain
| | - Ravi Jada
- Advanced Organic Photonic Materials and Technolgy Laboratory, School of Chemistry, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad, 500 046, India
| | - Mari Annadhasan
- Advanced Organic Photonic Materials and Technolgy Laboratory, School of Chemistry, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad, 500 046, India
| | - Pilar Prieto
- Departamento de Quimica Inorgánica, Orgánicay Bioqumica, Facultad de Ciencias Tecnologias Quimicas, Universidad de Castilla-La Mancha, 13071, Ciudad Real, Spain
| | - Rajadurai Chandrasekar
- Advanced Organic Photonic Materials and Technolgy Laboratory, School of Chemistry, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad, 500 046, India
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28
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Soni Y, Rich B, Kwon D, Zhao W, John D, Seldon C, Benjamin C, Benveniste R, Komotar R, Prieto P, Fuente MDL, Azzam G, Mellon E, Diwanji T. Disparities in Use of Salvage Whole Brain Radiation Therapy vs. Salvage Stereotactic Radiosurgery After Initial Stereotactic Radiosurgery for Brain Metastases. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.1560] [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]
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29
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Prieto P, Palomino C, Cifuentes Z, Cabrera A. Analysis of Chromosome Associations during Early Meiosis in Wheat Lines Carrying Chromosome Introgressions from Agropyron cristatum. Plants (Basel) 2021; 10:plants10112292. [PMID: 34834654 PMCID: PMC8625001 DOI: 10.3390/plants10112292] [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] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 10/18/2021] [Accepted: 10/20/2021] [Indexed: 06/13/2023]
Abstract
Crested wheatgrass (Agropyron cristatum L. Gaertn., genome P), included in the Triticeae tribe (family Poaceae), is one of the most important grasses in temperate regions. It has been valued as a donor of important agronomic traits for wheat improvement, including tolerance to cold, drought, and high salinity, as well as resistance to leaf rust, stripe rust, and powdery mildew. For successful incorporation of beneficial alleles into wheat, it is essential that recombination between wheat and A. cristatum chromosomes occurs. In this work, we analysed chromosome associations during meiosis in wheat lines carrying chromosome introgressions from A. cristatum chromosomes 5P and 6P in the presence and absence of Ph1 locus using fluorescence in situ hybridisation. The results showed that the Ph1 locus does not affect chromosome associations between A. cristatum and wheat chromosomes because there were no interspecific chromosome associations; therefore, no recombination between chromosomes from wheat and Agropyron were observed in the absence of the Ph1 locus. The 5P and 6P A. cristatum chromosomes do not have a suppressor effect on the Ph1 locus. Wheat univalents in metaphase I suggest that Agropyron chromosomes might carry genes having a role in wheat homologous chromosome associations. Putative effect of the Agropyron genes on wheat chromosome associations does not interact with the Ph1 locus.
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Affiliation(s)
- Pilar Prieto
- Plant Breeding Department, Institute for Sustainable Agriculture, Agencia Estatal Consejo Superior de Investigaciones Científicas (CSIC), Alameda del Obispo s/n, Apartado 4048, 14080 Córdoba, Spain;
| | - Carmen Palomino
- Genetics Department, ETSIAM, Campus de Rabanales, Universidad de Córdoba, CeiA3, 14071 Córdoba, Spain; (C.P.); (A.C.)
| | - Zuny Cifuentes
- Plant Breeding Department, Institute for Sustainable Agriculture, Agencia Estatal Consejo Superior de Investigaciones Científicas (CSIC), Alameda del Obispo s/n, Apartado 4048, 14080 Córdoba, Spain;
| | - Adoración Cabrera
- Genetics Department, ETSIAM, Campus de Rabanales, Universidad de Córdoba, CeiA3, 14071 Córdoba, Spain; (C.P.); (A.C.)
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30
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Val-Blasco A, Prieto P, Jaen RI, Gil-Fernandez M, Pajares M, Domenech N, Jorge I, Vazquez J, Bueno-Sen A, Ruiz-Hurtado G, Crespo-Leiro MG, Cuadrado A, Delgado C, Bosca L, Fernandez-Velasco M. Specialized pro-resolving mediators prevents cardiac dysfunction by modulating Ca2+ handling and NRF2 axis. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.3207] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background and purpose
Myocarditis is a severe inflammatory heart disease and a leading cause of sudden death in young adults; but currently no specific treatment is available. Lipoxins and their derivatives promote the resolution of inflammation contributing to recover tissue homeostasis; but their role in cardiac inflammation is poorly understood.
Methods and results
BML-111, a stable lipoxin A4 receptor agonist, protects against cardiac dysfunction in a murine model of experimental autoimmune myocarditis (EAM) by preventing Ca2+ mishandling. Cardiac proteomic analysis revealed an enhanced cardiac oxidative profile in EAM-induced mice with reduced activation of NRF2, a master antioxidant transcription factor. In vitro analysis showed that 15-epi-lipoxin A4 increased systolic Ca2+ release and sarcoplasmic reticulum (SR)-Ca2+ load in cardiomyocytes isolated from wild-type mice and augmented the rate of SR-Ca2+ uptake by SERCA2a, but failed to induce any functional change in cells from Nrf2−/− mice. BML-111 increased SERCA2a cardiac expression in wild-type mice, and the transcriptional activity of Nrf2 determined SERCA2a expression in human ventricular cells. Human myocarditis-positive myocardium showed a reduced expression of both ATP2A2 (SERCA2a) and NF2L2 (NRF2).
Conclusions
Our results demonstrated new cardioprotective mechanisms of pro-resolving lipid mediators that may emerge as innovative treatments for myocarditis.
Funding Acknowledgement
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): ISCIII [PI17/01344]), Sociedad Española de Cardiología: Proyecto Traslacional 2019Fondo Europeo de Desarrollo Regional (FEDER), FSE, and CIBER-CV, a network funded by ISCIII
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Affiliation(s)
- A Val-Blasco
- Instituto de Investigacion Hospital Universitario La PAZ, IdiPAZ, Madrid, Spain
| | - P Prieto
- Complutense University of Madrid, Pharmacology, Pharmacy Faculty, Madrid, Spain
| | - R I Jaen
- Instituto de Investigaciones Biomedicas Alberto Sols, Madrid, Spain
| | - M Gil-Fernandez
- Instituto de Investigacion Hospital Universitario La PAZ, IdiPAZ, Madrid, Spain
| | - M Pajares
- Instituto de Investigaciones Biomedicas Alberto Sols, Madrid, Spain
| | - N Domenech
- Cardiology Practice, Instituto de Investigaciόn Biomédica de A Coruña (INIBIC), Complexo Hospitalario Universitario de A, Coruña, A, Spain
| | - I Jorge
- National Centre for Cardiovascular Research (CNIC), Madrid, Spain
| | - J Vazquez
- National Centre for Cardiovascular Research (CNIC), Madrid, Spain
| | - A Bueno-Sen
- Instituto de Investigacion Hospital Universitario La PAZ, IdiPAZ, Madrid, Spain
| | - G Ruiz-Hurtado
- University Hospital 12 de Octubre, Instituto de Investigaciόn i+12 Hospital Universitario 12 de Octubre, Madrid, Spain
| | - M G Crespo-Leiro
- Cardiology Practice, Instituto de Investigaciόn Biomédica de A Coruña (INIBIC), Complexo Hospitalario Universitario de A, Coruña, A, Spain
| | - A Cuadrado
- Instituto de Investigaciones Biomedicas Alberto Sols, Madrid, Spain
| | - C Delgado
- Instituto de Investigaciones Biomedicas Alberto Sols, Madrid, Spain
| | - L Bosca
- Instituto de Investigaciones Biomedicas Alberto Sols, Madrid, Spain
| | - M Fernandez-Velasco
- Instituto de Investigacion Hospital Universitario La PAZ, IdiPAZ, Madrid, Spain
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31
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González Moreno A, Prieto P, Ruiz Delgado MC, Domínguez E, Heredia A, de Cózar A. Structure, isomerization and dimerization processes of naringenin flavonoids. Phys Chem Chem Phys 2021; 23:18068-18077. [PMID: 34388230 DOI: 10.1039/d1cp01161h] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
In this study, the theoretical and experimental results on the molecular structure and reactivity of the plant flavonoids naringenin chalcone and naringenin are reported. UV-vis and Raman spectra were recorded and their main bands have been assigned theoretically. Moreover, the analysis of the naringenin chalcone-naringenin cyclization-isomerization reaction and the formation of homodimers and heterodimers have been performed within a DFT framework. The presence of H-bonded water networks is mandatory to make the cyclization energetically suitable, suggesting that this equilibrium will occur in an aqueous intracellular environment rather than in the extracellular and hydrophobic plant cuticles. Additionally, the preferential formation of homodimers stabilized by π-π stacking that will interact with other dimers by H-bonding over the formation of naringenin chalcone-naringenin heterodimers is also proposed in a hydrophobic environment. These results give a plausible model to explain how flavonoids are located within the cuticle molecular arrangement.
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Affiliation(s)
- Ana González Moreno
- IHSM-UMA-CSIC La Mayora, Departamento de Biología Molecular y Bioquímica, Universidad de Málaga (UMA), 29071, Málaga, Spain.
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32
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Bianco C, Andreozzi A, Romano S, Fagorzi C, Cangioli L, Prieto P, Cisse F, Niangado O, Sidibé A, Pianezze S, Perini M, Mengoni A, Defez R. Endophytes from African Rice ( Oryza glaberrima L.) Efficiently Colonize Asian Rice ( Oryza sativa L.) Stimulating the Activity of Its Antioxidant Enzymes and Increasing the Content of Nitrogen, Carbon, and Chlorophyll. Microorganisms 2021; 9:microorganisms9081714. [PMID: 34442793 PMCID: PMC8398951 DOI: 10.3390/microorganisms9081714] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2021] [Revised: 07/30/2021] [Accepted: 08/09/2021] [Indexed: 12/22/2022] Open
Abstract
Bacterial endophytes support the adaptation of host plants to harsh environments. In this study, culturable bacterial endophytes were isolated from the African rice Oryza glaberrima L., which is well-adapted to grow with poor external inputs in the tropical region of Mali. Among these, six N-fixer strains were used to inoculate O. glaberrima RAM133 and the Asian rice O. sativa L. cv. Baldo, selected for growth in temperate climates. The colonization efficiency and the N-fixing activity were evaluated and compared for the two rice varieties. Oryza sativa-inoculated plants showed a fairly good colonization efficiency and nitrogenase activity. The inoculation of Oryza sativa with the strains Klebsiella pasteurii BDA134-6 and Phytobacter diazotrophicus BDA59-3 led to the highest nitrogenase activity. In addition, the inoculation of ‘Baldo’ plants with the strain P. diazotrophicus BDA59-3 led to a significant increase in nitrogen, carbon and chlorophyll content. Finally, ‘Baldo’ plants inoculated with Kl. pasteurii BDA134-6 showed the induction of antioxidant enzymes activity and the maintenance of nitrogen-fixation under salt stress as compared to the unstressed controls. As these endophytes efficiently colonize high-yielding crop varieties grown in cold temperate climates, they become good candidates to promote their growth under unfavorable conditions.
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Affiliation(s)
- Carmen Bianco
- Institute of Biosciences and BioResources, Via P. Castellino 111, 80131 Naples, Italy; (A.A.); (S.R.); (R.D.)
- Correspondence: ; Tel.: +39-081-613-2610
| | - Anna Andreozzi
- Institute of Biosciences and BioResources, Via P. Castellino 111, 80131 Naples, Italy; (A.A.); (S.R.); (R.D.)
| | - Silvia Romano
- Institute of Biosciences and BioResources, Via P. Castellino 111, 80131 Naples, Italy; (A.A.); (S.R.); (R.D.)
| | - Camilla Fagorzi
- Department of Biology, University of Florence, Via Madonna del Piano 6, 50019 Sesto Fiorentino, Italy; (C.F.); (L.C.); (A.M.)
| | - Lisa Cangioli
- Department of Biology, University of Florence, Via Madonna del Piano 6, 50019 Sesto Fiorentino, Italy; (C.F.); (L.C.); (A.M.)
| | - Pilar Prieto
- Departamento de Mejora Genética, Campus ‘Alamedadel Obispo’, Instituto de Agricultura Sostenible (IAS), Consejo Superior de Investigaciones Científicas (CSIC), Avd. Menéndez Pidal s/n, 14004 Córdoba, Spain;
| | - Fousseyni Cisse
- Institut d’Economie Rurale, Rue Mohamed V Bamako, Bamako B.P. 258, Mali; (F.C.); (A.S.)
| | - Oumar Niangado
- Syngenta Foundation for Sustainable Agriculture, Bamako B.P.E. 1449, Mali;
| | - Amadou Sidibé
- Institut d’Economie Rurale, Rue Mohamed V Bamako, Bamako B.P. 258, Mali; (F.C.); (A.S.)
| | - Silvia Pianezze
- Fondazione Edmund Mach, Via Mach 1, 38098 San Michele All’Adige, Italy; (S.P.); (M.P.)
- Environmental and Animal Sciences DI4A, Università degli Studi di Udine, Via Sondrio 2/A, 33100 Udine, Italy
| | - Matteo Perini
- Fondazione Edmund Mach, Via Mach 1, 38098 San Michele All’Adige, Italy; (S.P.); (M.P.)
| | - Alessio Mengoni
- Department of Biology, University of Florence, Via Madonna del Piano 6, 50019 Sesto Fiorentino, Italy; (C.F.); (L.C.); (A.M.)
| | - Roberto Defez
- Institute of Biosciences and BioResources, Via P. Castellino 111, 80131 Naples, Italy; (A.A.); (S.R.); (R.D.)
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Pronina M, Hübscher I, Vilà-Giménez I, Prieto P. Bridging the Gap Between Prosody and Pragmatics: The Acquisition of Pragmatic Prosody in the Preschool Years and Its Relation With Theory of Mind. Front Psychol 2021; 12:662124. [PMID: 34335373 PMCID: PMC8322765 DOI: 10.3389/fpsyg.2021.662124] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Accepted: 06/24/2021] [Indexed: 11/13/2022] Open
Abstract
While it is well known that prosodic features are central in the conveyance of pragmatic meaning across languages, developmental research has assessed a narrow set of pragmatic functions of prosody. Research on prosodic development has focused on early infancy, with the subsequent preschool ages and beyond having received less attention. This study sets out to explore how young preschoolers develop the ability to use prosody to express pragmatic meanings while taking into account children's Theory of Mind (ToM) development. Though ToM has been suggested to be linked to the development of receptive prosody, little is known about its relationship with expressive prosodic skills. A total of 102 3- to 4-year-old Catalan-speaking children were assessed for their pragmatic prosody skills using 35 picture-supported prompts revolving around a variety of social scenarios, as well as for their ToM skills. The responses were analyzed for prosodic appropriateness. The analyses revealed that 3- to 4-year-olds successfully produced prosody to encode basic expressive acts and unbiased speech acts such as information-seeking questions. Yet they had more trouble with complex expressive acts and biased speech acts such as the ones that convey speakers' beliefs. Further analyses showed that ToM alone is not sufficient to explain children's prosodic score, but the prosodic performance in some pragmatic areas (unbiased pragmatic meanings) was predicted by the interaction between ToM and age. Overall, this evidence for the acquisition of pragmatic prosody by young preschoolers demonstrates the importance of bridging the gap between prosody and pragmatics when accounting for prosodic developmental profiles, as well as taking into account the potential influence of ToM and other socio-cognitive and language skills in this development.
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Affiliation(s)
- Mariia Pronina
- Department of Translation and Language Sciences, Universitat Pompeu Fabra, Barcelona, Spain
| | - Iris Hübscher
- Zurich University of Applied Sciences, Zurich, Switzerland
- URPP Language and Space, University of Zurich, Zurich, Switzerland
| | - Ingrid Vilà-Giménez
- Department of Translation and Language Sciences, Universitat Pompeu Fabra, Barcelona, Spain
- Department of Subject-Specific Education, Universitat de Girona, Girona, Spain
| | - Pilar Prieto
- Department of Translation and Language Sciences, Universitat Pompeu Fabra, Barcelona, Spain
- Institució Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Spain
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Madia F, Pillo G, Worth A, Corvi R, Prieto P. Integration of data across toxicity endpoints for improved safety assessment of chemicals: the example of carcinogenicity assessment. Arch Toxicol 2021; 95:1971-1993. [PMID: 33830278 PMCID: PMC8166685 DOI: 10.1007/s00204-021-03035-x] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 03/18/2021] [Indexed: 12/13/2022]
Abstract
In view of the need to enhance the assessment of consumer products called for in the EU Chemicals Strategy for Sustainability, we developed a methodology for evaluating hazard by combining information across different systemic toxicity endpoints and integrating the information with new approach methodologies. This integrates mechanistic information with a view to avoiding redundant in vivo studies, minimising reliance on apical endpoint tests and ultimately devising efficient testing strategies. Here, we present the application of our methodology to carcinogenicity assessment, mapping the available information from toxicity test methods across endpoints to the key characteristics of carcinogens. Test methods are deconstructed to allow the information they provide to be organised in a systematic way, enabling the description of the toxicity mechanisms leading to the adverse outcome. This integrated approach provides a flexible and resource-efficient means of fully exploiting test methods for which test guidelines are available to fulfil regulatory requirements for systemic toxicity assessment as well as identifying where new methods can be integrated.
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Affiliation(s)
- Federica Madia
- European Commission, Joint Research Centre (JRC), Via E. Fermi 2749, 21027, Ispra, VA, Italy.
| | - Gelsomina Pillo
- European Commission, Joint Research Centre (JRC), Via E. Fermi 2749, 21027, Ispra, VA, Italy
| | - Andrew Worth
- European Commission, Joint Research Centre (JRC), Via E. Fermi 2749, 21027, Ispra, VA, Italy
| | - Raffaella Corvi
- European Commission, Joint Research Centre (JRC), Via E. Fermi 2749, 21027, Ispra, VA, Italy
| | - Pilar Prieto
- European Commission, Joint Research Centre (JRC), Via E. Fermi 2749, 21027, Ispra, VA, Italy
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Pistollato F, Madia F, Corvi R, Munn S, Grignard E, Paini A, Worth A, Bal-Price A, Prieto P, Casati S, Berggren E, Bopp SK, Zuang V. Current EU regulatory requirements for the assessment of chemicals and cosmetic products: challenges and opportunities for introducing new approach methodologies. Arch Toxicol 2021; 95:1867-1897. [PMID: 33851225 PMCID: PMC8166712 DOI: 10.1007/s00204-021-03034-y] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Accepted: 03/18/2021] [Indexed: 12/28/2022]
Abstract
The EU Directive 2010/63/EU on the protection of animals used for scientific purposes and other EU regulations, such as REACH and the Cosmetic Products Regulation advocate for a change in the way toxicity testing is conducted. Whilst the Cosmetic Products Regulation bans animal testing altogether, REACH aims for a progressive shift from in vivo testing towards quantitative in vitro and computational approaches. Several endpoints can already be addressed using non-animal approaches including skin corrosion and irritation, serious eye damage and irritation, skin sensitisation, and mutagenicity and genotoxicity. However, for systemic effects such as acute toxicity, repeated dose toxicity and reproductive and developmental toxicity, evaluation of chemicals under REACH still heavily relies on animal tests. Here we summarise current EU regulatory requirements for the human health assessment of chemicals under REACH and the Cosmetic Products Regulation, considering the more critical endpoints and identifying the main challenges in introducing alternative methods into regulatory testing practice. This supports a recent initiative taken by the International Cooperation on Alternative Test Methods (ICATM) to summarise current regulatory requirements specific for the assessment of chemicals and cosmetic products for several human health-related endpoints, with the aim of comparing different jurisdictions and coordinating the promotion and ultimately the implementation of non-animal approaches worldwide. Recent initiatives undertaken at European level to promote the 3Rs and the use of alternative methods in current regulatory practice are also discussed.
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Affiliation(s)
- Francesca Pistollato
- Directorate F-Health, Consumers and Reference Materials, Unit F3 Chemicals Safety and Alternative Methods, European Commission, Joint Research Centre (JRC), Via E. Fermi, 2749. TP126, 21027, Ispra, VA, Italy
| | - Federica Madia
- Directorate F-Health, Consumers and Reference Materials, Unit F3 Chemicals Safety and Alternative Methods, European Commission, Joint Research Centre (JRC), Via E. Fermi, 2749. TP126, 21027, Ispra, VA, Italy
| | - Raffaella Corvi
- Directorate F-Health, Consumers and Reference Materials, Unit F3 Chemicals Safety and Alternative Methods, European Commission, Joint Research Centre (JRC), Via E. Fermi, 2749. TP126, 21027, Ispra, VA, Italy
| | - Sharon Munn
- Directorate F-Health, Consumers and Reference Materials, Unit F3 Chemicals Safety and Alternative Methods, European Commission, Joint Research Centre (JRC), Via E. Fermi, 2749. TP126, 21027, Ispra, VA, Italy
| | - Elise Grignard
- Directorate F-Health, Consumers and Reference Materials, Unit F3 Chemicals Safety and Alternative Methods, European Commission, Joint Research Centre (JRC), Via E. Fermi, 2749. TP126, 21027, Ispra, VA, Italy
| | - Alicia Paini
- Directorate F-Health, Consumers and Reference Materials, Unit F3 Chemicals Safety and Alternative Methods, European Commission, Joint Research Centre (JRC), Via E. Fermi, 2749. TP126, 21027, Ispra, VA, Italy
| | - Andrew Worth
- Directorate F-Health, Consumers and Reference Materials, Unit F3 Chemicals Safety and Alternative Methods, European Commission, Joint Research Centre (JRC), Via E. Fermi, 2749. TP126, 21027, Ispra, VA, Italy
| | - Anna Bal-Price
- Directorate F-Health, Consumers and Reference Materials, Unit F3 Chemicals Safety and Alternative Methods, European Commission, Joint Research Centre (JRC), Via E. Fermi, 2749. TP126, 21027, Ispra, VA, Italy
| | - Pilar Prieto
- Directorate F-Health, Consumers and Reference Materials, Unit F3 Chemicals Safety and Alternative Methods, European Commission, Joint Research Centre (JRC), Via E. Fermi, 2749. TP126, 21027, Ispra, VA, Italy
| | - Silvia Casati
- Directorate F-Health, Consumers and Reference Materials, Unit F3 Chemicals Safety and Alternative Methods, European Commission, Joint Research Centre (JRC), Via E. Fermi, 2749. TP126, 21027, Ispra, VA, Italy
| | - Elisabet Berggren
- Directorate F-Health, Consumers and Reference Materials, Unit F3 Chemicals Safety and Alternative Methods, European Commission, Joint Research Centre (JRC), Via E. Fermi, 2749. TP126, 21027, Ispra, VA, Italy
| | - Stephanie K Bopp
- Directorate F-Health, Consumers and Reference Materials, Unit F3 Chemicals Safety and Alternative Methods, European Commission, Joint Research Centre (JRC), Via E. Fermi, 2749. TP126, 21027, Ispra, VA, Italy
| | - Valérie Zuang
- Directorate F-Health, Consumers and Reference Materials, Unit F3 Chemicals Safety and Alternative Methods, European Commission, Joint Research Centre (JRC), Via E. Fermi, 2749. TP126, 21027, Ispra, VA, Italy.
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Vilà-Giménez I, Dowling N, Demir-Lira ÖE, Prieto P, Goldin-Meadow S. The Predictive Value of Non-Referential Beat Gestures: Early Use in Parent-Child Interactions Predicts Narrative Abilities at 5 Years of Age. Child Dev 2021; 92:2335-2355. [PMID: 34018614 DOI: 10.1111/cdev.13583] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
A longitudinal study with 45 children (Hispanic, 13%; non-Hispanic, 87%) investigated whether the early production of non-referential beat and flip gestures, as opposed to referential iconic gestures, in parent-child naturalistic interactions from 14 to 58 months old predicts narrative abilities at age 5. Results revealed that only non-referential beats significantly (p < .01) predicted later narrative productions. The pragmatic functions of the children's speech that accompany these gestures were also analyzed in a representative sample of 18 parent-child dyads, revealing that beats were typically associated with biased assertions or questions. These findings show that the early use of beats predicts narrative abilities later in development, and suggest that this relation is likely due to the pragmatic-structuring function that beats reflect in early discourse.
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Affiliation(s)
| | | | - Ö Ece Demir-Lira
- University of Iowa, DeLTA Center and Iowa Neuroscience Institute
| | - Pilar Prieto
- Institució Catalana de Recerca i Estudis Avançats (ICREA) and Universitat Pompeu Fabra
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Morales C, Urbanos FJ, Del Campo A, Leinen D, Granados D, Prieto P, Aballe L, Foerster M, Soriano L. Influence of chemical and electronic inhomogeneities of graphene/copper on the growth of oxide thin films: the ZnO/graphene/copper case. Nanotechnology 2021; 32:245301. [PMID: 33508809 DOI: 10.1088/1361-6528/abe0e8] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Accepted: 01/28/2021] [Indexed: 06/12/2023]
Abstract
The interaction of graphene with metal oxides is essential for understanding and controlling new devices' fabrication based on these materials. The growth of metal oxides on graphene/substrate systems constitutes a challenging task due to the graphene surface's hydrophobic nature. In general, different pre-treatments should be performed before deposition to ensure a homogenous growth depending on the deposition technique, the metal oxide, and the surface's specific nature. Among these factors, the initial state and interaction of graphene with its substrate is the most important. Therefore, it is imperative to study the initial local state of graphene and relate it to the early stages of metal oxides' growth characteristics. Taking as initial samples graphene grown by chemical vapor deposition on polycrystalline Cu sheets and then exposed to ambient conditions, this article presents a local study of the inhomogeneities of this air-exposed graphene and how they influence on the subsequent ZnO growth. Firstly, by spatially correlating Raman and x-ray photoemission spectroscopies at the micro and nanoscales, it is shown how chemical species present in air intercalate inhomogeneously between Graphene and Cu. The reason for this is precisely the polycrystalline nature of the Cu support. Moreover, these local inhomogeneities also affect the oxidation level of the uppermost layer of Cu and, consequently, the electronic coupling between graphene and the metallic substrate. In second place, through the same characterization techniques, it is shown how the initial state of graphene/Cu sheets influences the local inhomogeneities of the ZnO deposit during the early stages of growth in terms of both, stoichiometry and morphology. Finally, as a proof of concept, it is shown how altering the initial chemical state and interaction of Graphene with Cu can be used to control the properties of the ZnO deposits.
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Affiliation(s)
- Carlos Morales
- Departamento de Física Aplicada and Instituto de Ciencia de Materiales Nicolás Cabrera, Universidad Autónoma de Madrid, Francisco Tomás y Valiente 7, E-28049 Madrid, Spain
| | | | - Adolfo Del Campo
- Instituto de Cerámica y Vidrio, ICV-CSIC, Kelsen 5, E-28049 Madrid, Spain
| | - Dietmar Leinen
- Departamento de Física Aplicada, Universidad de Málaga, Campus Teatinos, E-29071 Málaga, Spain
| | | | - Pilar Prieto
- Departamento de Física Aplicada and Instituto de Ciencia de Materiales Nicolás Cabrera, Universidad Autónoma de Madrid, Francisco Tomás y Valiente 7, E-28049 Madrid, Spain
| | - Lucía Aballe
- ALBA Synchrotron Light Source, Carrer de la Llum 2-26, E-08290 Cerdanyola del Vallès, Spain
| | - Michael Foerster
- ALBA Synchrotron Light Source, Carrer de la Llum 2-26, E-08290 Cerdanyola del Vallès, Spain
| | - Leonardo Soriano
- Departamento de Física Aplicada and Instituto de Ciencia de Materiales Nicolás Cabrera, Universidad Autónoma de Madrid, Francisco Tomás y Valiente 7, E-28049 Madrid, Spain
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Montes-Osuna N, Gómez-Lama Cabanás C, Valverde-Corredor A, Berendsen RL, Prieto P, Mercado-Blanco J. Assessing the Involvement of Selected Phenotypes of Pseudomonas simiae PICF7 in Olive Root Colonization and Biological Control of Verticillium dahliae. Plants (Basel) 2021; 10:plants10020412. [PMID: 33672351 PMCID: PMC7926765 DOI: 10.3390/plants10020412] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [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: 02/01/2021] [Revised: 02/16/2021] [Accepted: 02/19/2021] [Indexed: 12/19/2022]
Abstract
Pseudomonas simiae PICF7 is an indigenous inhabitant of the olive (Olea europaea L.) rhizosphere/root endosphere and an effective biocontrol agent against Verticillium wilt of olive (VWO), caused by the soil-borne fungus Verticillium dahliae. This study aimed to evaluate the potential involvement of selected phenotypes of strain PICF7 in root colonization ability and VWO biocontrol. Therefore, a random transposon-insertion mutant bank of P. simiae PICF7 was screened for the loss of phenotypes likely involved in rhizosphere/soil persistence (copper resistance), root colonization (biofilm formation) and plant growth promotion (phytase activity). Transposon insertions in genes putatively coding for the transcriptional regulator CusR or the chemotaxis protein CheV were found to affect copper resistance, whereas an insertion in fleQ gene putatively encoding a flagellar regulatory protein hampered the ability to form a biofilm. However, these mutants displayed the same antagonistic effect against V. dahliae as the parental strain. Remarkably, two mutants impaired in biofilm formation were never found inside olive roots, whereas their ability to colonize the root exterior and to control VWO remained unaffected. Endophytic colonization of olive roots was unaltered in mutants impaired in copper resistance and phytase production. Results demonstrated that the phenotypes studied were irrelevant for VWO biocontrol.
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Affiliation(s)
- Nuria Montes-Osuna
- Departamento de Protección de Cultivos, Instituto de Agricultura Sostenible, Agencia Estatal Consejo Superior de Investigaciones Científicas (CSIC), Avenida Menéndez Pidal s/n, Campus “Alameda del Obispo”, 14004 Córdoba, Spain; (N.M.-O.); (C.G.-L.C.); (A.V.-C.)
| | - Carmen Gómez-Lama Cabanás
- Departamento de Protección de Cultivos, Instituto de Agricultura Sostenible, Agencia Estatal Consejo Superior de Investigaciones Científicas (CSIC), Avenida Menéndez Pidal s/n, Campus “Alameda del Obispo”, 14004 Córdoba, Spain; (N.M.-O.); (C.G.-L.C.); (A.V.-C.)
| | - Antonio Valverde-Corredor
- Departamento de Protección de Cultivos, Instituto de Agricultura Sostenible, Agencia Estatal Consejo Superior de Investigaciones Científicas (CSIC), Avenida Menéndez Pidal s/n, Campus “Alameda del Obispo”, 14004 Córdoba, Spain; (N.M.-O.); (C.G.-L.C.); (A.V.-C.)
| | - Roeland L. Berendsen
- Plant–Microbe Interactions, Department of Biology, Faculty of Science, Utrecht University, Padualaan 8, 3584 CH Utrecht, The Netherlands;
| | - Pilar Prieto
- Departamento de Mejora Genética Vegetal, Instituto de Agricultura Sostenible, Agencia Estatal Consejo Superior de Investigaciones Científicas (CSIC), Avenida Menéndez Pidal s/n, Campus “Alameda del Obispo”, 14004 Córdoba, Spain;
| | - Jesús Mercado-Blanco
- Departamento de Protección de Cultivos, Instituto de Agricultura Sostenible, Agencia Estatal Consejo Superior de Investigaciones Científicas (CSIC), Avenida Menéndez Pidal s/n, Campus “Alameda del Obispo”, 14004 Córdoba, Spain; (N.M.-O.); (C.G.-L.C.); (A.V.-C.)
- Correspondence:
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Vilà-Giménez I, Prieto P. The Value of Non-Referential Gestures: A Systematic Review of Their Cognitive and Linguistic Effects in Children's Language Development. Children (Basel) 2021; 8:148. [PMID: 33671119 PMCID: PMC7922730 DOI: 10.3390/children8020148] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 02/10/2021] [Accepted: 02/11/2021] [Indexed: 12/04/2022]
Abstract
Speakers produce both referential gestures, which depict properties of a referent, and non-referential gestures, which lack semantic content. While a large number of studies have demonstrated the cognitive and linguistic benefits of referential gestures as well as their precursor and predictive role in both typically developing (TD) and non-TD children, less is known about non-referential gestures in cognitive and complex linguistic domains, such as narrative development. This paper is a systematic review and narrative synthesis of the research concerned with assessing the effects of non-referential gestures in such domains. A search of the literature turned up 11 studies, collectively involving 898 2- to 8-year-old TD children. Although they yielded contradictory evidence, pointing to the need for further investigations, the results of the six studies-in which experimental tasks and materials were pragmatically based-revealed that non-referential gestures not only enhance information recall and narrative comprehension but also act as predictors and causal mechanisms for narrative performance. This suggests that their bootstrapping role in language development is due to the fact that they have important discourse-pragmatic functions that help frame discourse. These findings should be of particular interest to teachers and future studies could extend their impact to non-TD children.
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Affiliation(s)
- Ingrid Vilà-Giménez
- Department of Translation and Language Sciences, Universitat Pompeu Fabra, 08018 Barcelona, Spain;
- Department of Subject-Specific Education, Universitat de Girona, 17004 Girona, Spain
| | - Pilar Prieto
- Department of Translation and Language Sciences, Universitat Pompeu Fabra, 08018 Barcelona, Spain;
- Institució Catalana de Recerca i Estudis Avançats (ICREA), 08010 Barcelona, Spain
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Vinay Pradeep V, Tardío C, Torres-Moya I, Rodríguez AM, Vinod Kumar A, Annadhasan M, de la Hoz A, Prieto P, Chandrasekar R. Mechanical Processing of Naturally Bent Organic Crystalline Microoptical Waveguides and Junctions. Small 2021; 17:e2006795. [PMID: 33354900 DOI: 10.1002/smll.202006795] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 12/07/2020] [Indexed: 06/12/2023]
Abstract
Precise mechanical processing of optical microcrystals involves complex microscale operations viz. moving, bending, lifting, and cutting of crystals. Some of these mechanical operations can be implemented by applying mechanical force at specific points of the crystal to fabricate advanced crystalline optical junctions. Mechanically compliant flexible optical crystals are ideal candidates for the designing of such microoptical junctions. A vapor-phase growth of naturally bent optical waveguiding crystals of 1,4-bis(2-cyanophenylethynyl)benzene (1) on a surface forming different optical junctions is presented. In the solid-state, molecule 1 interacts with its neighbors via CH⋅⋅⋅N hydrogen bonding and π-π stacking. The microcrystals deposited at a glass surface exhibit moderate flexibility due to substantial surface adherence energy. The obtained network crystals also display mechanical compliance when cut precisely with sharp atomic force microscope cantilever tip, making them ideal candidates for building innovative T- and Δ-shaped optical junctions with multiple outputs. The presented micromechanical processing technique can also be effectively used as a tool to fabricate single-crystal integrated photonic devices and circuits on suitable substrates.
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Affiliation(s)
- Vuppu Vinay Pradeep
- School of Chemistry, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad, 50046, India
- Centre for Nanotechnology, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad, 50046, India
| | - Carlos Tardío
- Department of Biochemistry, Organic and Inorganic Chemistry, Faculty of Chemical and Technologies Sciences, University of Castilla- La Mancha, Ciudad Real, 13071, Spain
| | - Iván Torres-Moya
- Department of Biochemistry, Organic and Inorganic Chemistry, Faculty of Chemical and Technologies Sciences, University of Castilla- La Mancha, Ciudad Real, 13071, Spain
| | - Ana M Rodríguez
- Department of Biochemistry, Organic and Inorganic Chemistry, Faculty of Chemical and Technologies Sciences, University of Castilla- La Mancha, Ciudad Real, 13071, Spain
| | - Avulu Vinod Kumar
- School of Chemistry, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad, 50046, India
- Centre for Nanotechnology, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad, 50046, India
| | - Mari Annadhasan
- School of Chemistry, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad, 50046, India
- Centre for Nanotechnology, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad, 50046, India
| | - Antonio de la Hoz
- Department of Biochemistry, Organic and Inorganic Chemistry, Faculty of Chemical and Technologies Sciences, University of Castilla- La Mancha, Ciudad Real, 13071, Spain
| | - Pilar Prieto
- Department of Biochemistry, Organic and Inorganic Chemistry, Faculty of Chemical and Technologies Sciences, University of Castilla- La Mancha, Ciudad Real, 13071, Spain
| | - Rajadurai Chandrasekar
- School of Chemistry, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad, 50046, India
- Centre for Nanotechnology, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad, 50046, India
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Aguilar M, Prieto P. Telomeres and Subtelomeres Dynamics in the Context of Early Chromosome Interactions During Meiosis and Their Implications in Plant Breeding. Front Plant Sci 2021; 12:672489. [PMID: 34149773 PMCID: PMC8212018 DOI: 10.3389/fpls.2021.672489] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Accepted: 05/06/2021] [Indexed: 05/08/2023]
Abstract
Genomic architecture facilitates chromosome recognition, pairing, and recombination. Telomeres and subtelomeres play an important role at the beginning of meiosis in specific chromosome recognition and pairing, which are critical processes that allow chromosome recombination between homologs (equivalent chromosomes in the same genome) in later stages. In plant polyploids, these terminal regions are even more important in terms of homologous chromosome recognition, due to the presence of homoeologs (equivalent chromosomes from related genomes). Although telomeres interaction seems to assist homologous pairing and consequently, the progression of meiosis, other chromosome regions, such as subtelomeres, need to be considered, because the DNA sequence of telomeres is not chromosome-specific. In addition, recombination operates at subtelomeres and, as it happens in rye and wheat, homologous recognition and pairing is more often correlated with recombining regions than with crossover-poor regions. In a plant breeding context, the knowledge of how homologous chromosomes initiate pairing at the beginning of meiosis can contribute to chromosome manipulation in hybrids or interspecific genetic crosses. Thus, recombination in interspecific chromosome associations could be promoted with the aim of transferring desirable agronomic traits from related genetic donor species into crops. In this review, we summarize the importance of telomeres and subtelomeres on chromatin dynamics during early meiosis stages and their implications in recombination in a plant breeding framework.
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Affiliation(s)
- Miguel Aguilar
- Área de Fisiología Vegetal, Universidad de Córdoba, Córdoba, Spain
| | - Pilar Prieto
- Plant Breeding Department, Institute for Sustainable Agriculture, Agencia Estatal Consejo Superior de Investigaciones Científicas (CSIC), Córdoba, Spain
- *Correspondence: Pilar Prieto, ; orcid.org/0000-0002-8160-808X
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Xi X, Li P, Baills F, Prieto P. Hand Gestures Facilitate the Acquisition of Novel Phonemic Contrasts When They Appropriately Mimic Target Phonetic Features. J Speech Lang Hear Res 2020; 63:3571-3585. [PMID: 33090915 DOI: 10.1044/2020_jslhr-20-00084] [Citation(s) in RCA: 1] [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: 06/11/2023]
Abstract
Purpose Research has shown that observing hand gestures mimicking pitch movements or rhythmic patterns can improve the learning of second language (L2) suprasegmental features. However, less is known about the effects of hand gestures on the learning of novel phonemic contrasts. This study examines (a) whether hand gestures mimicking phonetic features can boost L2 segment learning by naive learners and (b) whether a mismatch between the hand gesture form and the target phonetic feature influences the learning effect. Method Fifty Catalan native speakers undertook a short multimodal training session on two types of Mandarin Chinese consonants (plosives and affricates) in either of two conditions: Gesture and No Gesture. In the Gesture condition, a fist-to-open-hand gesture was used to mimic air burst, while the No Gesture condition included no such use of gestures. Crucially, while the hand gesture appropriately mimicked the air burst produced in plosives, this was not the case for affricates. Before and after training, participants were tested on two tasks, namely, the identification task and the imitation task. Participants' speech output was rated by five Chinese native speakers. Results The perception results showed that training with or without gestures yielded similar degrees of improvement for the identification of aspiration contrasts. By contrast, the production results showed that, while training without gestures did not help improve L2 pronunciation, training with gestures improved pronunciation, but only when the given gestures appropriately mimicked the phonetic properties they represented. Conclusions Results revealed that the efficacy of observing hand gestures on the learning of nonnative phonemes depends on the appropriateness of the form of those gestures relative to the target phonetic features. That is, hand gestures seem to be more useful when they appropriately mimic phonetic features. Supplemental Material https://doi.org/10.23641/asha.13105442.
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Affiliation(s)
- Xiaotong Xi
- Department of Translation and Language Sciences, Universitat Pompeu Fabra, Barcelona, Spain
| | - Peng Li
- Department of Translation and Language Sciences, Universitat Pompeu Fabra, Barcelona, Spain
| | - Florence Baills
- Department of Translation and Language Sciences, Universitat Pompeu Fabra, Barcelona, Spain
| | - Pilar Prieto
- Department of Translation and Language Sciences, Universitat Pompeu Fabra, Barcelona, Spain
- Institució Catalana de Recerca i Estudis Avançats, Barcelona, Spain
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Aguilar M, Prieto P. Sequence analysis of wheat subtelomeres reveals a high polymorphism among homoeologous chromosomes. Plant Genome 2020; 13:e20065. [PMID: 33029942 DOI: 10.1002/tpg2.20065] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 07/20/2020] [Accepted: 09/08/2020] [Indexed: 05/23/2023]
Abstract
Bread wheat, Triticum aestivum L., is one of the most important crops in the world. Understanding its genome organization (allohexaploid; AABBDD; 2n = 6x = 42) is essential for geneticists and plant breeders. Particularly, the knowledge of how homologous chromosomes (equivalent chromosomes from the same genome) specifically recognize each other to pair at the beginning of meiosis, the cellular process to generate gametes in sexually reproducing organisms, is fundamental for plant breeding and has a big influence on the fertility of wheat plants. Initial homologous chromosome interactions contribute to specific recognition and pairing between homologues at the onset of meiosis. Understanding the molecular basis of these critical processes can help to develop genetic tools in a breeding context to promote interspecific chromosome associations in hybrids or interspecific genetic crosses to facilitate the transfer of desirable agronomic traits from related species into a crop like wheat. The terminal regions of chromosomes, which include telomeres and subtelomeres, participate in chromosome recognition and pairing. We present a detailed molecular analysis of subtelomeres of wheat chromosome arms 1AS, 4AS, 7AS, 7BS and 7DS. Results showed a high polymorphism in the subtelomeric region among homoeologues (equivalent chromosomes from related genomes) for all the features analyzed, including genes, transposable elements, repeats, GC content, predicted CpG islands, recombination hotspots and targeted sequence motifs for relevant DNA-binding proteins. These polymorphisms might be the molecular basis for the specificity of homologous recognition and pairing in initial chromosome interactions at the beginning of meiosis in wheat.
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Affiliation(s)
- Miguel Aguilar
- Área de Fisiología Vegetal. Universidad de Córdoba. Campus de Rabanales, edif. C4, 3a planta, Córdoba, Spain
| | - Pilar Prieto
- Plant Breeding Department, Institute for Sustainable Agriculture, Agencia Estatal Consejo Superior de Investigaciones Científicas (CSIC), Alameda del Obispo s/n, Apartado 4084, Córdoba, 14080, Spain
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Rohrer PL, Delais-Roussarie E, Prieto P. Beat Gestures for Comprehension and Recall: Differential Effects of Language Learners and Native Listeners. Front Psychol 2020; 11:575929. [PMID: 33192882 PMCID: PMC7605175 DOI: 10.3389/fpsyg.2020.575929] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Accepted: 09/28/2020] [Indexed: 11/13/2022] Open
Abstract
Previous work has shown how native listeners benefit from observing iconic gestures during speech comprehension tasks of both degraded and non-degraded speech. By contrast, effects of the use of gestures in non-native listener populations are less clear and studies have mostly involved iconic gestures. The current study aims to complement these findings by testing the potential beneficial effects of beat gestures (non-referential gestures which are often used for information- and discourse marking) on language recall and discourse comprehension using a narrative-drawing task carried out by native and non-native listeners. Using a within-subject design, 51 French intermediate learners of English participated in a narrative-drawing task. Each participant was assigned 8 videos to watch, where a native speaker describes the events of a short comic strip. Videos were presented in random order, in four conditions: in Native listening conditions with frequent, naturally-modeled beat gestures, in Native listening conditions without any gesture, in Non-native listening conditions with frequent, naturally-modeled beat gestures, and in Non-native listening conditions without any gesture. Participants watched each video twice and then immediately recreated the comic strip through their own drawings. Participants' drawings were then evaluated for discourse comprehension (via their ability to convey the main goals of the narrative through their drawings) and recall (via the number of gesturally-marked elements in the narration that were included in their drawings). Results showed that for native listeners, beat gestures had no significant effect on either recall or comprehension. In non-native speech, however, beat gestures led to significantly lower comprehension and recall scores. These results suggest that frequent, naturally-modeled beat gestures in longer discourses may increase cognitive load for language learners, resulting in negative effects on both memory and language understanding. These findings add to the growing body of literature that suggests that gesture benefits are not a "one-size-fits-all" solution, but rather may be contingent on factors such as language proficiency and gesture rate, particularly in that whenever beat gestures are repeatedly used in discourse, they inherently lose their saliency as markers of important information.
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Affiliation(s)
- Patrick Louis Rohrer
- Université de Nantes, UMR 6310, Laboratoire de Linguistique de Nantes (LLING), Nantes, France
- Grup d’Estudis de Prosòdia, Department of Translation and Language Sciences, Pompeu Fabra University, Barcelona, Spain
| | | | - Pilar Prieto
- Grup d’Estudis de Prosòdia, Department of Translation and Language Sciences, Pompeu Fabra University, Barcelona, Spain
- Institució Catalana de Recerca i Estudis Avançats, Barcelona, Spain
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Leahy DE, Duncan R, Ahr HJ, Bayliss MK, de Boer A(BG, Darvas F, Fentem JH, Fry JR, Hopkins R, Houston JB, Karlsson J, Kedderis GL, Pratten MK, Prieto P, Smith DA, Straughan DW. Pharmacokinetics in Early Drug Research. Altern Lab Anim 2020. [DOI: 10.1177/026119299702500105] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- David E. Leahy
- Lead Discovery Department, ZENECA Pharmaceuticals, Alderley Park, Macclesfield SK10 4TG, UK
| | - Ruth Duncan
- Centre for Polymer Therapeutics, The School of Pharmacy, University of London, 29/39 Brunswick Square, London WC1N 1AX, UK
| | - Hans J. Ahr
- PH-PD-T Research Toxicology, Bayer AG, 42096 Wuppertal, Germany
| | - Martin K. Bayliss
- Bioanalysis and Drug Metabolism, Glaxo Wellcome, Park Road, Ware, Herts. SG12 ODP, UK
| | - A. (Bert) G. de Boer
- Division of Pharmacology, LACDR, Sylvius Laboratories, Leiden University, Wassenaarseweg 72, 2300 RA Leiden, The Netherlands
| | | | | | - Jeffrey R. Fry
- Department of Physiology & Pharmacology, University of Nottingham Medical School, Nottingham NG7 2UH, UK
| | - Robert Hopkins
- Corning Hazleton, Otley Road, Harrogate, North Yorkshire HG3 1PY, UK
| | - J. Brian Houston
- Department of Pharmacy, University of Manchester, Oxford Road, Manchester M13 9PL, UK
| | - Johan Karlsson
- Elan Corporation Research Institute, Trinity College, Dublin 2, Ireland
| | | | - Margaret K. Pratten
- Department of Human Anatomy and Cell Biology, University of Nottingham Medical School, Nottingham NG7 2UH, UK
| | - Pilar Prieto
- ECVAM, JRC Environment Institute, 21020 Ispra (VA), Italy
| | - Dennis A. Smith
- Department of Drug Metabolism, Pfizer Central Research, Sandwich, Kent CT13 9NJ, UK
| | - Donald W. Straughan
- FRAME, Russell & Burch House, 96–98 North Sherwood Street, Nottingham NG1 4EE, UK
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Madia F, Corvi R, Worth A, Matys I, Prieto P. Making better use of toxicity studies for human health by extrapolating across endpoints. ALTEX 2020; 37:519-531. [PMID: 32735683 DOI: 10.14573/altex.2005061] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Accepted: 07/28/2020] [Indexed: 11/23/2022]
Abstract
To develop and evaluate scientifically robust and innovative approaches for the safety assessment of chemicals across multiple regulatory sectors, the EU Reference Laboratory for alternatives to animal testing (EURL ECVAM) has started a project to explore how to better use the available information, including that from existing animal studies. The aim is to minimize reliance on in vivo testing to avoid redundancy and to facilitate the integration of novel non-animal methods in the regulatory setting with the ultimate goal of designing sustainable testing strategies. In this thought-starter paper, we present a number of examples to illustrate and trigger further discussions within the scientific and regulatory communities on ways to extrapolate useful information for predicting toxicity from one toxicity endpoint to another or across endpoints based on mechanistic information.
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Affiliation(s)
- Federica Madia
- European Commission, Joint Research Centre (JRC), Ispra, Italy; former JRC trainee
| | - Raffaella Corvi
- European Commission, Joint Research Centre (JRC), Ispra, Italy; former JRC trainee
| | - Andrew Worth
- European Commission, Joint Research Centre (JRC), Ispra, Italy; former JRC trainee
| | - Izabela Matys
- European Commission, Joint Research Centre (JRC), Ispra, Italy; former JRC trainee
| | - Pilar Prieto
- European Commission, Joint Research Centre (JRC), Ispra, Italy; former JRC trainee
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Vilà‐Giménez I, Prieto P. Encouraging kids to beat: Children's beat gesture production boosts their narrative performance. Dev Sci 2020; 23:e12967. [DOI: 10.1111/desc.12967] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 03/06/2020] [Accepted: 03/12/2020] [Indexed: 11/30/2022]
Affiliation(s)
- Ingrid Vilà‐Giménez
- Department of Translation and Language Sciences Universitat Pompeu Fabra Barcelona Catalonia Spain
| | - Pilar Prieto
- Department of Translation and Language Sciences Universitat Pompeu Fabra Barcelona Catalonia Spain
- Institució Catalana de Recerca i Estudis Avançats (ICREA) Barcelona Catalonia Spain
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Abstract
Meiosis is a specialized type of cell division occurring in sexually reproducing organisms to generate haploid cells known as gametes. In flowering plants, male gametes are produced in anthers, being encased in pollen grains. Understanding the genetic regulation of meiosis key events such as chromosome recognition and pairing, synapsis and recombination, is needed to manipulate chromosome associations for breeding purposes, particularly in important cereal crops like wheat. Reverse transcription-quantitative PCR (RT-qPCR) is widely used to analyse gene expression and to validate the results obtained by other transcriptomic analyses, like RNA-seq. Selection and validation of appropriate reference genes for RT-qPCR normalization is essential to obtain reproducible and accurate expression data. In this work, twelve candidate reference genes were evaluated using the mainstream algorithms geNorm, Normfinder, BestKeeper and ΔCt, then ranked from most to least suitable for normalization with RefFinder. Different sets of reference genes were recommended to normalize gene expression data in anther meiosis of bread and durum wheat, their corresponding genotypes in the absence of the Ph1 locus and for comparative studies among wheat genotypes. Comparisons between meiotic (anthers) and somatic (leaves and roots) wheat tissues were also carried out. To the best of our knowledge, our study provides the first comprehensive list of reference genes for robust RT-qPCR normalization to study differentially expressed genes during male meiosis in wheat in a breeding framework.
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Affiliation(s)
- José Garrido
- Plant Breeding Department, Institute for Sustainable Agriculture, Agencia Estatal Consejo Superior de Investigaciones Científicas (CSIC), Alameda del Obispo s/n, Apartado 4084, 14080, Córdoba, Spain
| | - Miguel Aguilar
- Área de Fisiología Vegetal. Universidad de Córdoba. Campus de Rabanales, edif. C4, 3ª planta, Córdoba, Spain
| | - Pilar Prieto
- Plant Breeding Department, Institute for Sustainable Agriculture, Agencia Estatal Consejo Superior de Investigaciones Científicas (CSIC), Alameda del Obispo s/n, Apartado 4084, 14080, Córdoba, Spain.
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Torres-Moya I, Vázquez-Guilló R, Fernández-Palacios S, Carrillo JR, Díaz-Ortiz Á, López Navarrete JT, Ponce Ortiz R, Ruiz Delgado MC, Mallavia R, Prieto P. Fluorene-Based Donor-Acceptor Copolymers Containing Functionalized Benzotriazole Units: Tunable Emission and their Electrical Properties. Polymers (Basel) 2020; 12:E256. [PMID: 31979007 PMCID: PMC7077272 DOI: 10.3390/polym12020256] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 01/15/2020] [Accepted: 01/18/2020] [Indexed: 11/16/2022] Open
Abstract
Monomers 4,7-dibromo-2H-benzo[d]1,2,3-triazole (m1) and 4,7-(bis(4-bromophenyl)ethynyl)-2H-benzo[d]1,2,3-triazole (m2) have been synthesized in good yields using different procedures. Monomers m1 and m2 have been employed for building new copolymers of fluorene derivatives by a Suzuki reaction under microwave irradiation using the same conditions. In each case different chain lengths have been achieved, while m1 gives rise to polymers for m2 oligomers have been obtained (with a number of monomer units lower than 7). Special interest has been paid to their photophysical properties due to excited state properties of these D-A units alternates, which have been investigated by density functional theory (DFT) calculations using two methods: (i) An oligomer approach and (ii) by periodic boundary conditions (PBC). It is highly remarkable the tunability of the photophysical properties as a function of the different monomer functionalization derived from 2H-benzo[d]1,2,3-triazole units. In fact, a strong modulation of the absorption and emission properties have been found by functionalizing the nitrogen N-2 of the benzotriazole units or by elongation of the π-conjugated core with the introduction of alkynylphenyl groups. Furthermore, the charge transport properties of these newly synthesized macromolecules have been approached by their implementation in organic field-effect transistors (OFETs) in order to assess their potential as active materials in organic optoelectronics.
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Affiliation(s)
- Iván Torres-Moya
- Department of Organic Chemistry, Faculty of Chemical Sciences and Technologies-IRICA, University of Castilla-La Mancha, 13071 Ciudad Real, Spain; (I.T.-M.); (J.R.C.); (Á.D.-O.)
| | - Rebeca Vázquez-Guilló
- Instituto de Investigación Desarrollo e innovación en Biotecnología Sanitaria de Elche (IDiBE), University of Miguel Hernández, 03202 Elche, Spain;
| | - Sara Fernández-Palacios
- Department of Physical Chemistry, Faculty of Sciences, University of Málaga, 29071 Málaga, Spain; (S.F.-P.); (J.T.L.N.); (R.P.O.)
| | - José Ramón Carrillo
- Department of Organic Chemistry, Faculty of Chemical Sciences and Technologies-IRICA, University of Castilla-La Mancha, 13071 Ciudad Real, Spain; (I.T.-M.); (J.R.C.); (Á.D.-O.)
| | - Ángel Díaz-Ortiz
- Department of Organic Chemistry, Faculty of Chemical Sciences and Technologies-IRICA, University of Castilla-La Mancha, 13071 Ciudad Real, Spain; (I.T.-M.); (J.R.C.); (Á.D.-O.)
| | - Juan Teodomiro López Navarrete
- Department of Physical Chemistry, Faculty of Sciences, University of Málaga, 29071 Málaga, Spain; (S.F.-P.); (J.T.L.N.); (R.P.O.)
| | - Rocío Ponce Ortiz
- Department of Physical Chemistry, Faculty of Sciences, University of Málaga, 29071 Málaga, Spain; (S.F.-P.); (J.T.L.N.); (R.P.O.)
| | - Mari Carmen Ruiz Delgado
- Department of Physical Chemistry, Faculty of Sciences, University of Málaga, 29071 Málaga, Spain; (S.F.-P.); (J.T.L.N.); (R.P.O.)
| | - Ricardo Mallavia
- Instituto de Investigación Desarrollo e innovación en Biotecnología Sanitaria de Elche (IDiBE), University of Miguel Hernández, 03202 Elche, Spain;
| | - Pilar Prieto
- Department of Organic Chemistry, Faculty of Chemical Sciences and Technologies-IRICA, University of Castilla-La Mancha, 13071 Ciudad Real, Spain; (I.T.-M.); (J.R.C.); (Á.D.-O.)
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Abstract
Meiosis is the cellular process responsible for producing gametes with half the genetic content of the parent cells. Integral parts of the process in most diploid organisms include the recognition, pairing, synapsis, and recombination of homologous chromosomes, which are prerequisites for balanced segregation of half-bivalents during meiosis I. In polyploids, the presence of more than two sets of chromosomes adds to the basic meiotic program of their diploid progenitors the possibility of interactions between more than two chromosomes and the formation of multivalents, which has implications on chromosome segregations and fertility. The mode of how chromosomes behave in meiosis in competitive situations has been the aim of many studies in polyploid species, some of which are considered here. But polyploids are also of interest in the study of meiosis because some of them tolerate the loss of chromosome segments or complete chromosomes as well as the addition of chromosomes from related species. Deletions allow to assess the effect of specific chromosome segments on meiotic behavior. Introgression lines are excellent materials to monitor the behavior of a given chromosome in the genetic background of the recipient species. We focus on this approach here as based on studies carried out in bread wheat, which is commonly used as a model species for meiosis studies. In addition to highlighting the relevance of the use of materials derived from polyploids in the study of meiosis, cytogenetics tools such as fluorescence in situ hybridization and the immunolabeling of proteins interacting with DNA are also emphasized.
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Affiliation(s)
- Pilar Prieto
- Departamento de Mejora Genética, Instituto de Agricultura Sostenible (IAS), Consejo Superior de Investigaciones Científicas (CSIC), Córdoba, Spain
| | - Tomás Naranjo
- Departamento de Genética, Fisiología y Microbiología, Facultad de Biología, Universidad Complutense de Madrid, Madrid, Spain.
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