1
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Müller MR, Ortega F. Mental Health Collaborative Care in Brazil and the Economy of Attention: Disclosing Barriers and Therapeutic Negotiations. Cult Med Psychiatry 2024:10.1007/s11013-024-09852-w. [PMID: 38652342 DOI: 10.1007/s11013-024-09852-w] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/12/2024] [Indexed: 04/25/2024]
Abstract
The introduction of mental health collaborative care (MHCC) is one of the strategies to scale up access to mental health care in primary health care in Brazil. This article investigates an experience of mental health collaborative care in the city of Rio de Janeiro, Brazil. It is a qualitative study involving interviews with physicians and mental health professionals working in primary health care units located in the northern part of the city of Rio de Janeiro, Brazil. The aim is to examine the various strategies and negotiations that primary health care professionals deploy to identify mental distress and plan health care interventions. We discuss the results within the economy of attention framework. We argue that divergences in diagnostic design and therapeutic planning carried out by professionals and users or observed in MHCC meetings illustrate the health-disease-care seeking phenomenon as a negotiated process, entangled in complex interactions. Our results evince that those interactions are not always evident and configure 'what is at stake' in mental suffering. The incorporation of cultural and structural determinants in collaborative care may enable the expansion of mental health initiatives sensitive to local needs and realities.
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Affiliation(s)
- Manuela Rodrigues Müller
- Faculdade de Ciências Médicas, Universidade do Estado do Rio de Janeiro (FCM-UERJ), Rio de Janeiro, Brazil
| | - Francisco Ortega
- Catalan Institution for Research and Advanced Studies (ICREA), Barcelona, Spain.
- Medical Anthropology Research Center, Universitat Rovira i Virgili, Av. Catalunya 35, 43002, Tarragona, Spain.
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2
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Guerrero A, Ortega F, Martín de Jesús S, Pérez-García A. Postcranial anomalies of Eocene freshwater pleurodiran and cryptodiran turtles from the Spanish Duero Basin. Anat Rec (Hoboken) 2024. [PMID: 38613176 DOI: 10.1002/ar.25443] [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: 01/02/2024] [Revised: 03/18/2024] [Accepted: 03/18/2024] [Indexed: 04/14/2024]
Abstract
Testudines are one of the best-represented taxonomic groups among the Paleogene taxa of the Duero Basin (Castile and Leon Autonomous Community, central Spain). Among them, Neochelys (Podocnemidide) and Allaeochelys (Carettochelyidae) are most abundant, allowing the population to be assessed for osteological anomalies. The abundance of postcranial remains of both taxa allows us to identify several individuals with potential anomalies, mostly in their shells. Some of them have already been described in previous studies, but most of them are still unpublished. The objective of this study is to analyze in detail the anomalous Neochelys and Allaeochelys remains. As a result, different categories of causal agents (such as bacteria, fungi, parasites, or trauma) have been identified as potential producers of the anomalies in these freshwater turtles. Information regarding the pathogenesis and healing stages of some of these anomalies is provided.
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Affiliation(s)
- Andrea Guerrero
- Grupo de Biología Evolutiva, Facultad de Ciencias, UNED, Madrid, Spain
- EIUNED, UNED, Madrid, Spain
| | - Francisco Ortega
- Grupo de Biología Evolutiva, Facultad de Ciencias, UNED, Madrid, Spain
| | - Santiago Martín de Jesús
- Colección de Vertebrados Fósiles de la Cuenca del Duero-Sala de las Tortugas de la Universidad de Salamanca, Departamento de Geología, Facultad de Ciencias, Universidad de Salamanca, Salamanca, Spain
| | - Adán Pérez-García
- Grupo de Biología Evolutiva, Facultad de Ciencias, UNED, Madrid, Spain
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3
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Narváez I, de Celis A, Escaso F, Martín de Jesús S, Pérez-García A, Ortega F. A new Crocodyloidea from the middle Eocene of Zamora (Duero Basin, Spain). Anat Rec (Hoboken) 2024. [PMID: 38444286 DOI: 10.1002/ar.25422] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Revised: 02/07/2024] [Accepted: 02/21/2024] [Indexed: 03/07/2024]
Abstract
The eusuchian crocodyliforms recorded in the Eocene levels of the Spanish Duero Basin belong to three lineages: Planocraniidae, with the species Duerosuchus piscator; Alligatoroidea, represented by several specimens of the genus Diplocynodon; and Crocodyloidea, which includes several specimens traditionally attributed to Asiatosuchus. The genus Asiatosuchus, established in 1940 based on a middle Eocene species from Mongolia, has subsequently served as a wastebasket taxon for Paleogene remains belonging to several species, not only from Asia but also belonging to the European and North American records. Many of these species are known by highly fragmentary remains, sharing the presence of characters such as a flat and triangular skull, and long symphyses in the lower jaw, recognized as characteristic for the crocodyloids. In addition to isolated cranial remains, among the material traditionally attributed to Asiatosuchus at the Duero Basin stands out a nearly complete skull and a left mandible, from the middle Eocene area of Casaseca de Campeán (Zamora Province). The present study analyses in detail these specimens, previously reported during the 1980s, but analyzed in a very preliminary way. They are included for the first time in a phylogenetic analysis to establish the systematic position of this Spanish form. The results confirm that it corresponds to a new species of basal crocodyloid, defined here as Asiatosuchus oenotriensis sp. nov.
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Affiliation(s)
- Iván Narváez
- Grupo de Biología Evolutiva, Departamento de Física Matemática y de Fluidos, Facultad de Ciencias, UNED, Madrid, Spain
| | - Ane de Celis
- Grupo de Biología Evolutiva, Departamento de Física Matemática y de Fluidos, Facultad de Ciencias, UNED, Madrid, Spain
| | - Fernando Escaso
- Grupo de Biología Evolutiva, Departamento de Física Matemática y de Fluidos, Facultad de Ciencias, UNED, Madrid, Spain
| | - Santiago Martín de Jesús
- Colección de Vertebrados Fósiles de la Cuenca del Duero (Sala de las Tortugas), Departamento de Geología, Facultad de Ciencias, Universidad de Salamanca, Salamanca, Spain
| | - Adán Pérez-García
- Grupo de Biología Evolutiva, Departamento de Física Matemática y de Fluidos, Facultad de Ciencias, UNED, Madrid, Spain
| | - Francisco Ortega
- Grupo de Biología Evolutiva, Departamento de Física Matemática y de Fluidos, Facultad de Ciencias, UNED, Madrid, Spain
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4
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Reis R, Ortega F. [Trauma and literality: psychodynamic reason in the spirit of neuroscientific traumatization]. Cien Saude Colet 2024; 29:e19502022. [PMID: 38324841 DOI: 10.1590/1413-81232024292.19502022] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Accepted: 06/07/2023] [Indexed: 02/09/2024] Open
Abstract
Since its origin in the surgical medicine of the 17th century, trauma research has had multiple interpretations and has been associated either with visible injuries to organs and tissues, or with the influence of pathogenic psychic agents on memory, consciousness and personality. With the intensification of the role of classification systems since DSM-III, the phenomenon of trauma came to be incorporated into the psychiatric realm through Post-Traumatic Stress Disorder and destined finally to the constraints of neuroscientific research. Based on a narrative review, this article will address one of the fundamental epistemological premises for this transition, which informs how psychological trauma gained autonomy over anatomical descriptions to be reclassified, around a century later, as an essentially bodily phenomenon and incorporated into the jargon of neurosciences.
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Affiliation(s)
- Ramon Reis
- Departamento de Saúde Mental, Faculdade de Medicina, Universidade Federal do Rio de Janeiro. Av. Aluizio da Silva Gomes 50, Granja dos Cavaleiros. 27930-560 Macaé RJ Brasil.
| | - Francisco Ortega
- Catalan Institution for Research and Advanced Studies. Barcelona Espanha
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Ortega F, Pele A. Brazil's unified health system: 35 years and future challenges. Lancet Reg Health Am 2023; 28:100631. [PMID: 38033357 PMCID: PMC10682286 DOI: 10.1016/j.lana.2023.100631] [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] [Download PDF] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Accepted: 10/31/2023] [Indexed: 12/02/2023]
Affiliation(s)
- Francisco Ortega
- Catalan Institution for Research and Advanced Studies, Barcelona, Spain
- Medical Anthropology Research Center, Universitat Rovira i Virgili, Tarragona, Spain
| | - Antonio Pele
- Pontifical Catholic University of Rio de Janeiro, Law School, Rio de Janeiro, Brazil
- Marie Curie Researcher, École des Hautes Études en Sciences Sociales (EHESS) / Institut de Recherche Interdisciplinaire sur les Enjeux Sociaux (IRIS), Paris, France
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6
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Garcia-Garcia G, Martín-Lara MÁ, Calero M, Ortega F, Blázquez G. Life-Cycle Assessment of the thermal and catalytic pyrolysis over sepiolite of face masks. Sci Total Environ 2023; 895:165063. [PMID: 37355111 PMCID: PMC10287176 DOI: 10.1016/j.scitotenv.2023.165063] [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] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 06/16/2023] [Accepted: 06/20/2023] [Indexed: 06/26/2023]
Abstract
Since the start of the global COVID-19 pandemic, extensive quantities of face masks have been used and discarded. Most of these masks end up in landfills, causing a high environmental impact and no benefits. However, there are alternative ways to deal with this waste in a more sustainable way. For example, valorisation of face masks through pyrolysis has received special attention because it offers efficient application to produce a liquid oil that can be used as a diesel substitute and a solid char that can be used as an activated carbon substitute after activation. In this context, this study applies the Life-Cycle Assessment methodology to quantify and analyse the environmental impacts of different treatment scenarios based on the pyrolysis of surgical masks and FFP2 masks. It also compares their environmental performance with the conventional practice of landfilling. The scenarios studied include both thermal and catalytic pyrolysis by using sepiolite, a low-cost material abundant in Spain. Data on the pyrolysis process were obtained from laboratory experiments. It was found that the use of the produced oil as a diesel substitute very significantly reduces the environmental impact in all pyrolysis scenarios. Consequently, the pyrolysis of face masks can reduce the environmental impact caused by the treatment of this waste material. Furthermore, the thermal pyrolysis performs environmentally better than the catalytic pyrolysis. In all scenarios, freshwater ecotoxicity and marine ecotoxicity are the environmental impact categories that cause the highest environmental impact overall.
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Affiliation(s)
- Guillermo Garcia-Garcia
- Department of Agrifood Chain Economics, Institute of Agricultural and Fisheries Research and Training (IFAPA), Centre 'Camino de Purchil', 18080 Granada, Spain
| | - María Ángeles Martín-Lara
- Department of Chemical Engineering, Faculty of Sciences, University of Granada, 18071 Granada, Spain.
| | - Mónica Calero
- Department of Chemical Engineering, Faculty of Sciences, University of Granada, 18071 Granada, Spain.
| | - Francisco Ortega
- Department of Chemical Engineering, Faculty of Sciences, University of Granada, 18071 Granada, Spain
| | - Gabriel Blázquez
- Department of Chemical Engineering, Faculty of Sciences, University of Granada, 18071 Granada, Spain
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7
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Oliveras-Cañellas N, Latorre J, Santos-González E, Lluch A, Ortega F, Mayneris-Perxachs J, Fernández-Real JM, Moreno-Navarrete JM. Inflammatory response to bacterial lipopolysaccharide drives iron accumulation in human adipocytes. Biomed Pharmacother 2023; 166:115428. [PMID: 37677967 DOI: 10.1016/j.biopha.2023.115428] [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: 06/30/2023] [Revised: 08/23/2023] [Accepted: 08/30/2023] [Indexed: 09/09/2023] Open
Abstract
The association among increased inflammation, disrupted iron homeostasis, and adipose tissue dysfunction in obesity has been widely recognized. However, the specific impact of inflammation on iron homeostasis during human adipogenesis and in adipocytes remains poorly understood. In this study, we investigated the effects of bacterial lipopolysaccharide (LPS) on iron homeostasis during human adipocyte differentiation, in fully differentiated adipocytes, and in human adipose tissue. We found that LPS-induced inflammation hindered adipogenesis and led to a gene expression profile indicative of intracellular iron accumulation. This was accompanied by increased expression of iron importers (TFRC and SLC11A2), markers of intracellular iron accumulation (FTH, CYBA, FTL, and LCN2), and decreased expression of iron exporter-related genes (SLC40A1), concomitant with elevated intracellular iron levels. Mechanistically, RNA-seq analysis and gene knockdown experiments revealed the significant involvement of iron importers SLC39A14, SLC39A8, and STEAP4 in LPS-induced intracellular iron accumulation in human adipocytes. Notably, markers of LPS signaling pathway-related inflammation were also associated with a gene expression pattern indicative of intracellular iron accumulation in human adipose tissue, corroborating the link between LPS-induced inflammation and iron accumulation at the tissue level. In conclusion, our findings demonstrate that induction of adipocyte inflammation disrupts iron homeostasis, resulting in adipocyte iron overload.
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Affiliation(s)
- Núria Oliveras-Cañellas
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), CIBEROBN (CB06/03/010) and Instituto de Salud Carlos III (ISCIII), Girona, Spain
| | - Jessica Latorre
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), CIBEROBN (CB06/03/010) and Instituto de Salud Carlos III (ISCIII), Girona, Spain
| | - Elena Santos-González
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), CIBEROBN (CB06/03/010) and Instituto de Salud Carlos III (ISCIII), Girona, Spain
| | - Aina Lluch
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), CIBEROBN (CB06/03/010) and Instituto de Salud Carlos III (ISCIII), Girona, Spain
| | - Francisco Ortega
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), CIBEROBN (CB06/03/010) and Instituto de Salud Carlos III (ISCIII), Girona, Spain
| | - Jordi Mayneris-Perxachs
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), CIBEROBN (CB06/03/010) and Instituto de Salud Carlos III (ISCIII), Girona, Spain
| | - José-Manuel Fernández-Real
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), CIBEROBN (CB06/03/010) and Instituto de Salud Carlos III (ISCIII), Girona, Spain; Department of Medicine, Universitat de Girona, Girona, Spain.
| | - José María Moreno-Navarrete
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), CIBEROBN (CB06/03/010) and Instituto de Salud Carlos III (ISCIII), Girona, Spain.
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8
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Abelenda-Núñez I, Ortega F, Rubio RG, Guzmán E. Anomalous Colloidal Motion under Strong Confinement. Small 2023; 19:e2302115. [PMID: 37116105 DOI: 10.1002/smll.202302115] [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] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Revised: 04/13/2023] [Indexed: 06/19/2023]
Abstract
Diffusion of biological macromolecules in the cytoplasm is a paradigm of colloidal diffusion in an environment characterized by a strong restriction of the accessible volume. This makes of the understanding of the physical rules governing colloidal diffusion under conditions mimicking the reduction in accessible volume occurring in the cell cytoplasm, a problem of a paramount importance. This work aims to study how the thermal motion of spherical colloidal beads in the inner cavity of giant unilamellar vesicles (GUVs) is modified by strong confinement conditions, and the viscoelastic character of the medium. Using single particle tracking, it is found that both the confinement and the environmental viscoelasticity lead to the emergence of anomalous motion pathways for colloidal microbeads encapsulated in the aqueous inner cavity of GUVs. This anomalous diffusion is strongly dependent on the ratio between the volume of the colloidal particle and that of the GUV under consideration as well as on the viscosity of the particle's liquid environment. Therefore, the results evidence that the reduction of the free volume accessible to colloidal motion pushes the diffusion far from a standard Brownian pathway as a result of the change in the hydrodynamic boundary conditions driving the particle motion.
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Affiliation(s)
- Irene Abelenda-Núñez
- Departamento de Química Física, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n., Madrid, 28040, Spain
| | - Francisco Ortega
- Departamento de Química Física, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n., Madrid, 28040, Spain
- Unidad de Materia Condensada, Instituto Pluridisciplinar, Universidad Complutense de Madrid, Paseo Juan XXIII 1., Madrid, 28040, Spain
| | - Ramón G Rubio
- Departamento de Química Física, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n., Madrid, 28040, Spain
| | - Eduardo Guzmán
- Departamento de Química Física, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n., Madrid, 28040, Spain
- Unidad de Materia Condensada, Instituto Pluridisciplinar, Universidad Complutense de Madrid, Paseo Juan XXIII 1., Madrid, 28040, Spain
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9
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Reis R, Ortega F. [The roots of trauma: a review of the history of psychotrauma]. Hist Cienc Saude Manguinhos 2023; 30:e2023039. [PMID: 37586011 PMCID: PMC10425152 DOI: 10.1590/s0104-59702023000100039] [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] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Accepted: 07/24/2022] [Indexed: 08/18/2023]
Abstract
Perceptions of the importance of the role of psychological trauma in the origins of psychiatric problems have oscillated throughout the history of psychiatry. However, since the conception of post-traumatic stress disorder (PTSD), western societies have witnessed a marked expansion of the discourse of trauma in the interpretation of devastating human experiences like catastrophes, genocides, disasters, and epidemics. Through an integrative literature review, this article analyzes some of the historical and epistemological determinants behind the emergence of traumatic memory and the establishment of trauma as a semantic field that orients clinical responses and political strategies in the field of the humanities and the health sciences.
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Affiliation(s)
- Ramon Reis
- Professor substituto, Departamento de Saúde Mental/Faculdade de Medicina/Universidade Federal do Rio de Janeiro. Macaé - RJ - Brasil
| | - Francisco Ortega
- Professor pesquisador, Catalan Institution for Research and Advanced Studies. Barcelona - Catalunha - Espanha. Professor, Medical Anthropology Research Center/Universitat Rovira i Virgili.Tarragona - Catalunha - Espanha
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10
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Fernández-Peña L, Guzmán E, Oñate-Martínez T, Fernández-Pérez C, Ortega F, Rubio RG, Luengo GS. Dilution-Induced Deposition of Concentrated Binary Mixtures of Cationic Polysaccharides and Surfactants. Polymers (Basel) 2023; 15:3011. [PMID: 37514401 PMCID: PMC10385572 DOI: 10.3390/polym15143011] [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: 06/11/2023] [Revised: 07/07/2023] [Accepted: 07/10/2023] [Indexed: 07/30/2023] Open
Abstract
This work investigates the effect of dilution on the phase separation process of binary charged polysaccharide-surfactant mixtures formed by two cationic polysaccharides and up to four surfactants of different nature (anionic, zwitterionic, and neutral), as well as the potential impact of dilution-induced phase separation on the formation of conditioning deposits on charged surfaces, mimicking the negative charge and wettability of damaged hair fibers. The results obtained showed that the dilution behavior of model washing formulations (concentrated polysaccharide-surfactant mixtures) cannot be described in terms of a classical complex precipitation framework, as phase separation phenomena occur even when the aggregates are far from the equilibrium phase separation composition. Therefore, dilution-enhanced deposition cannot be predicted in terms of the worsening of colloidal stability due to the charge neutralization phenomena, as common phase separation and, hence, enhanced deposition occurs even for highly charged complexes.
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Affiliation(s)
- Laura Fernández-Peña
- Departamento de Química Física, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain
- Centro de Espectroscopía y Correlación, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain
| | - Eduardo Guzmán
- Departamento de Química Física, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain
- Instituto Pluridisciplinar, Universidad Complutense de Madrid, Paseo Juan XXIII 1, 28040 Madrid, Spain
| | - Teresa Oñate-Martínez
- Departamento de Química Física, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain
| | - Coral Fernández-Pérez
- Departamento de Química Física, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain
| | - Francisco Ortega
- Departamento de Química Física, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain
- Instituto Pluridisciplinar, Universidad Complutense de Madrid, Paseo Juan XXIII 1, 28040 Madrid, Spain
| | - Ramón G Rubio
- Departamento de Química Física, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain
- Instituto Pluridisciplinar, Universidad Complutense de Madrid, Paseo Juan XXIII 1, 28040 Madrid, Spain
| | - Gustavo S Luengo
- L'Oréal Research and Innovation, 1 Avenue Eugène Schueller, 93600 Aulnay-Sous-Bois, France
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11
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Guzmán E, Maestro A, Ortega F, Rubio RG. Association of oppositely charged polyelectrolyte and surfactant in solution: equilibrium and nonequilibrium features. J Phys Condens Matter 2023; 35. [PMID: 37185217 DOI: 10.1088/1361-648x/acd041] [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: 12/19/2022] [Accepted: 04/25/2023] [Indexed: 05/17/2023]
Abstract
The association of polyelectrolytes and surfactants bearing charges of opposite signs has been for long time considered under an equilibrium framework. However, this is far to provide a true description of the physico-chemical rules of the association process when kinetically arrested nonequilibrium states are formed. This is the result of specific interaction pathways between the polyelectrolyte chains and the surfactant molecules determined by the mixing procedure and the mixture composition. In fact, the specific characteristics of the method used for the mixture can induce local inhomogeneities in the mixture composition which can govern the properties of the obtained supramolecular aggregates, driving to the systems to a situation far from the true equilibrium. This topical review tries to provide to the reader a general perspective of the role of the nonequilibrium aspects in the control of the polyelectrolyte-surfactant association process, and how these impact on the obtained supramolecular nanoassemblies, and their properties.
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Affiliation(s)
- Eduardo Guzmán
- Departamento de Química Física, Universidad Complutense de Madrid, Madrid, Spain
- Instituto Pluridisciplinar, Universidad Complutense de Madrid, Madrid, Spain
| | - Armando Maestro
- Centro de Física de Materiales (CSIC, UPV/EHU), San Sebastian, Spain
- IKERBASQUE-Basque Foundation for Science, Bilbao, Spain
| | - Francisco Ortega
- Departamento de Química Física, Universidad Complutense de Madrid, Madrid, Spain
- Instituto Pluridisciplinar, Universidad Complutense de Madrid, Madrid, Spain
| | - Ramón G Rubio
- Departamento de Química Física, Universidad Complutense de Madrid, Madrid, Spain
- Instituto Pluridisciplinar, Universidad Complutense de Madrid, Madrid, Spain
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12
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Guzmán E, Ortega F, Rubio RG. Layer-by-Layer Nanoassemblies for Vaccination Purposes. Pharmaceutics 2023; 15:pharmaceutics15051449. [PMID: 37242691 DOI: 10.3390/pharmaceutics15051449] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 05/08/2023] [Accepted: 05/09/2023] [Indexed: 05/28/2023] Open
Abstract
In recent years, the availability of effective vaccines has become a public health challenge due to the proliferation of different pandemic outbreaks which are a risk for the world population health. Therefore, the manufacturing of new formulations providing a robust immune response against specific diseases is of paramount importance. This can be partially faced by introducing vaccination systems based on nanostructured materials, and in particular, nanoassemblies obtained by the Layer-by-Layer (LbL) method. This has emerged, in recent years, as a very promising alternative for the design and optimization of effective vaccination platforms. In particular, the versatility and modularity of the LbL method provide very powerful tools for fabricating functional materials, opening new avenues on the design of different biomedical tools, including very specific vaccination platforms. Moreover, the possibility to control the shape, size, and chemical composition of the supramolecular nanoassemblies obtained by the LbL method offers new opportunities for manufacturing materials which can be administered following specific routes and present very specific targeting. Thus, it will be possible to increase the patient convenience and the efficacy of the vaccination programs. This review presents a general overview on the state of the art of the fabrication of vaccination platforms based on LbL materials, trying to highlight some important advantages offered by these systems.
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Affiliation(s)
- Eduardo Guzmán
- Departamento de Química Física, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain
- Instituto Pluridisciplinar, Universidad Complutense de Madrid, Paseo Juan XIII, 28040 Madrid, Spain
| | - Francisco Ortega
- Departamento de Química Física, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain
- Instituto Pluridisciplinar, Universidad Complutense de Madrid, Paseo Juan XIII, 28040 Madrid, Spain
| | - Ramón G Rubio
- Departamento de Química Física, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain
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Pérez-García A, Guerrero A, Martín de Jesús S, Ortega F. Shell characterization of the youngest valid species of the European Eocene genus Neochelys (Pleurodira, Podocnemididae): The Spanish Bartonian Neochelys salmanticensis. Anat Rec (Hoboken) 2023. [PMID: 37072560 DOI: 10.1002/ar.25225] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 03/23/2023] [Accepted: 03/27/2023] [Indexed: 04/20/2023]
Abstract
The freshwater pleurodiran turtle Neochelys is the best-represented member of Podocnemididae in the European record, being known by eight Eocene species. The youngest of them is the Bartonian (middle Eocene) Neochelys salmanticensis, from the Duero Basin (Salamanca Province, Central Spain). It corresponds to the largest representative known for this genus, its shell reaching 50 cm in length. Despite this form was defined several decades ago, the information currently available on it is very limited, being restricted to shell remains of less than 10 individuals. In fact, this species lacks a valid diagnosis, considering the current knowledge about the genus. Numerous remains (i.e., more than 1,200) of the shell of this Spanish species are identified. Its detailed study is presented here, so that the anatomy of its shell is characterized in detail. In addition, several aspects related to its intraspecific variability are analyzed, relative to the individual, ontogenetic, and sexual variability. In this way, the shell of N. salmanticensis can be characterized with greater precision than that of any other species of the genus.
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Affiliation(s)
- Adán Pérez-García
- Grupo de Biología Evolutiva, Facultad de Ciencias, Departmento de Física Matemática y de Fluidos, UNED, Madrid, Spain
| | - Andrea Guerrero
- Grupo de Biología Evolutiva, Facultad de Ciencias, Departmento de Física Matemática y de Fluidos, UNED, Madrid, Spain
| | - Santiago Martín de Jesús
- Colección de Vertebrados Fósiles de la Cuenca del Duero (Sala de las Tortugas), Facultad de Ciencias, Departamento de Geología, Universidad de Salamanca, Salamanca, Spain
| | - Francisco Ortega
- Grupo de Biología Evolutiva, Facultad de Ciencias, Departmento de Física Matemática y de Fluidos, UNED, Madrid, Spain
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Salesa MJ, Siliceo G, Antón M, Martínez I, Ortega F. New data on the mammalian fauna from the late middle Eocene (MP 15-16) of Mazaterón (Soria, Spain): The youngest presence of the genus Prodissopsalis (Hyaenodonta, Hyaenodontidae) in Europe. Anat Rec (Hoboken) 2023. [PMID: 37060198 DOI: 10.1002/ar.25223] [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: 02/07/2023] [Revised: 03/29/2023] [Accepted: 03/29/2023] [Indexed: 04/16/2023]
Abstract
The Hyaenodonta were the most diverse carnivorous mammals in the European Eocene and were classically divided into three subfamilies: Sinopaninae, Arfianinae, and Proviverrinae, with this latter being the most successful of the three, as it exhibited a much larger geographic and temporal range. This classification is currently abandoned, as cladistic analyses of Hyaenodonta showed that several of these groups were paraphyletic. In any case, the former "proviverrines" were European endemic hyaenodontids which occupied the niche of small to medium-sized predators from the Ypresian (MP7) to the Priabonian (MP19). Recent phylogenetic proposals recognize the "Eurotherium clade" including this latter genus, besides Cartierodon and Prodissopsalis. A single species is known for Prodissopsalis, Prodissopsalis eocaenicus, previously recorded in European fossil sites of MP 12 to MP 14; nevertheless, the new material studied here, a mandible of a subadult individual from the late Middle Eocene (Bartonian, MP 15-16) site of La Solana (Mazaterón, Soria, Spain) constitutes a new species of Prodissopsalis and the youngest record of this genus up to now, extending its chronological range and remarking the shelter role of the northwestern region of the Iberian Peninsula during the Middle and Late Eocene. The new species, Prodissopsalis jimenezi provides new data not only on the eruption sequence of the genus, but also on the evolution of its dental adaptations, as the new species exhibits a more trenchant, hypercarnivorous dentition in comparison to the more primitive species P. eocaenicus, which would point toward a refining of the hunting abilities of this hyaenodont during the Middle Eocene.
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Affiliation(s)
- Manuel J Salesa
- Departamento de Paleobiología, Museo Nacional de Ciencias Naturales-CSIC, Madrid, Spain
| | - Gema Siliceo
- Departamento de Paleobiología, Museo Nacional de Ciencias Naturales-CSIC, Madrid, Spain
- Faculty of Natural Science, Department of Geology and Paleontology, Comenius University, Bratislava, Slovak Republic
| | - Mauricio Antón
- Departamento de Paleobiología, Museo Nacional de Ciencias Naturales-CSIC, Madrid, Spain
| | - Irene Martínez
- Departamento de Paleobiología, Museo Nacional de Ciencias Naturales-CSIC, Madrid, Spain
| | - Francisco Ortega
- Grupo de Biología Evolutiva, Universidad Nacional de Educación a Distancia (UNED), Madrid, Spain
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Ortega F, Calero M, Rico N, Martín-Lara MA. COVID-19 personal protective equipment (PPE) contamination in coastal areas of Granada, Spain. Mar Pollut Bull 2023; 191:114908. [PMID: 37086548 PMCID: PMC10080275 DOI: 10.1016/j.marpolbul.2023.114908] [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: 03/01/2023] [Revised: 03/31/2023] [Accepted: 04/02/2023] [Indexed: 05/03/2023]
Abstract
The use of disposable personal protective equipment (PPE) as a control measure to avoid transmission against COVID-19 has generated a challenge to the waste management and enhances plastic pollution in the environment. The research aims to monitor the presence of PPE waste and other plastic debris, in a time interval where the use of face mask at specific places was still mandatory, on the coastal areas of Granada (Spain) which belongs to the Mediterranean Sea. Four beaches called La Rijana, La Charca, La Rábita and Calahonda were examined during different periods. The total amount of sampled waste was 17,558 plastic units. The abundance, characteristics and distribution of PPE and other plastic debris were determined. Results showed that the observed amount of total plastic debris were between 2.531·10-2 and 24.487·10-2 units per square meter, and up to 0.136·10-2 for PPE debris, where face masks represented the 92.22 % of the total PPE debris, being these results comparable to previous studies in other coastal areas in the world. On the other hand, total plastic debris densities were in the range from 2.457·10-2 to 92.219·10-2 g/m2 and densities were up to 0.732·10-2 for PPE debris. PPE debris supposed 0.79 % of the weight of total waste and the 0.51 % of total items. Concerning non-PPE plastic waste: cigarettes filters, food containers and styrofoam were the most abundant items (42.95, 10.19 and 16.37 % of total items, respectively). During vacation periods, total plastic debris amount increased 92.19 % compared to non-vacation periods. Regarding type of beaches, the presence of plastic debris was significantly higher on touristic/recreational than in fishing beaches. Data showed no significant differences between accessible and no-accessible beaches, but between periods with restrictive policy about mask face use and periods with non-restrictive policy data suggest significant differences between densities (g/m2) for PPE litter. The amount of PPEs debris is also correlated with the number of cigarettes filters (Person's r = 0.650), food containers (r = 0.782) and other debris (r = 0.63). Finally, although interesting results were provided in this study, further research is required to better understand the consequences of this type of pollution and to provide viable solutions to this problem.
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Affiliation(s)
- F Ortega
- Chemical Engineering Department, Faculty of Sciences, University of Granada, Granada, Spain.
| | - M Calero
- Chemical Engineering Department, Faculty of Sciences, University of Granada, Granada, Spain.
| | - N Rico
- Department of Statistics and Operations Research, Faculty of Sciences, University of Granada, Granada, Spain.
| | - M A Martín-Lara
- Chemical Engineering Department, Faculty of Sciences, University of Granada, Granada, Spain.
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Martinuzzi A, Lopez A, Flores A, Sgarzini D, Ortega F, Ferrero A, Doeyo M, Matano M, Billinger C, Pagani L, Barros J, Oviedo M, Mora C, Nuñez A, Manrique E, Cabrera D, Delfabro A, Salomone P, Crivelli A. Early Nutritional Evaluation By A Nutritional Support Team. Clin Nutr ESPEN 2023. [DOI: 10.1016/j.clnesp.2022.09.162] [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: 03/28/2023]
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Ortega F, Minnaard J, Arce V, García M. Nanocomposite starch films: Cytotoxicity studies and their application as cheese packaging. FOOD BIOSCI 2023. [DOI: 10.1016/j.fbio.2023.102562] [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: 03/17/2023]
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Mello DRB, Ortega F, Müller MR, Apratto Júnior PC. [Reflexive groups with medical students from the mental health league as a strategy for change]. Cien Saude Colet 2023; 28:887-896. [PMID: 36888871 DOI: 10.1590/1413-81232023283.10962022] [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] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Accepted: 09/01/2022] [Indexed: 03/08/2023] Open
Abstract
This paper set out to present the outcomes of qualitative research conducted with medical students of a Mental Health and Psychiatry League (LASMP). Its objectives were to sensitize them to perceive themselves as people and provide them with other rationales different from biomedical ways of thinking. The reflexive groups, within the culture circle, provided an opportunity for an exchange of ideas, time for reflection and sharing of fully formed daily experiences. They were configured as a strategy of change and awakening to rethink models of health more focused on healthcare than on diseases. Participant observation enabled revealing, through the narratives, particularities of the experiences, discourses and culture of the group itself. The analyses were carried out using the reflexivity method (Bourdieu, 2001; 2004), as it permits the systematic deepening of the contents of the narratives. Without any pretension of synthesis, the reflexive course on the narratives started from the assumptions of thought and actions to arrive at the constructed and shared meanings. They offered possibilities of transforming the way of perceiving the world of work, themselves, and the people around them; of changing the understanding of mental health beyond the individual level.
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Affiliation(s)
| | - Francisco Ortega
- Institució Catalana de Recerca i Estudis Avançats. Barcelona Espanha
| | - Manuela Rodrigues Müller
- Faculdade de Ciências Médicas, Universidade do Estado do Rio de Janeiro. Rio de Janeiro RJ Brasil
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Mateos-Maroto A, E F Rubio J, Prévost S, Maestro A, Rubio RG, Ortega F, Guzmán E. Probing the effect of the capping polyelectrolyte on the internal structure of Layer-by-Layer decorated nanoliposomes. J Colloid Interface Sci 2023; 640:220-229. [PMID: 36863179 DOI: 10.1016/j.jcis.2023.02.086] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 02/02/2023] [Accepted: 02/15/2023] [Indexed: 02/21/2023]
Abstract
HYPOTHESIS The internal organization of polyelectrolyte layers deposited on colloidal templates plays a very important role for the potential applications of these systems as capsules for drug delivery purposes. EXPERIMENTS The mutual arrangement of oppositely charged polyelectrolyte layers upon their deposition on positively charged liposomes has been studied by combining up three different scattering techniques and Electronic Spin Resonance, which has provided information about the inter-layer interactions and their effect on the final structure of the capsules. FINDINGS The sequential deposition of oppositely charged polyelectrolytes on the external leaflet of positively charged liposomes allows modulating the organization of the obtained supramolecular structures, impacting the packing and rigidity of the obtained capsules due to the change of the ionic cross-linking of the multi-layered film as a result of the specific charge of the last deposited layer. The possibility to modulate the properties of the LbL capsules by tuning the characteristics of the last deposited layers offers a very interesting route for the design of materials for encapsulation purposes with their properties controlled almost at will by changing the number of deposited layers and their chemistry.
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Affiliation(s)
- Ana Mateos-Maroto
- Departamento de Química Física, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040-Madrid, Spain.
| | - José E F Rubio
- Centro de Espectroscopía y Correlación, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040-Madrid, Spain
| | - Sylvain Prévost
- Institut Laue-Langevin, 71 Avenue des Martyrs, CEDEX 9, 38042 Grenoble, France
| | - Armando Maestro
- Centro de Fı́sica de Materiales (CSIC, UPV/EHU)-Materials Physics Center MPC, Paseo Manuel de Lardizabal 5, 20018-San, Sebastián, Spain; IKERBASQUE-Basque Foundation for Science, Plaza Euskadi 5, 48009-Bilbao, Spain
| | - Ramón G Rubio
- Departamento de Química Física, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040-Madrid, Spain
| | - Francisco Ortega
- Departamento de Química Física, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040-Madrid, Spain; Unidad de Materia Condensada. Instituto Pluridisciplinar, Universidad Complutense de Madrid, Paseo Juan XXIII 1, 28040 Madrid, Spain
| | - Eduardo Guzmán
- Departamento de Química Física, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040-Madrid, Spain; Unidad de Materia Condensada. Instituto Pluridisciplinar, Universidad Complutense de Madrid, Paseo Juan XXIII 1, 28040 Madrid, Spain.
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Milbank E, Díaz-Trelles R, Dragano N, Latorre J, Mukthavaram R, Mayneris-Perxachs J, Ortega F, Federici M, Burcelin R, Karmali PP, Tachikawa K, Chivukula P, López M, Fernández-Real JM, Moreno-Navarrete JM. Liver lipopolysaccharide binding protein prevents hepatic inflammation in physiological and pathological non-obesogenic conditions. Pharmacol Res 2023; 187:106562. [PMID: 36410673 DOI: 10.1016/j.phrs.2022.106562] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 11/09/2022] [Accepted: 11/16/2022] [Indexed: 11/23/2022]
Abstract
Lipopolysaccharide binding protein (LBP) knockout mice models are protected against the deleterious effects of major acute inflammation but its possible physiological role has been less well studied. We aimed to evaluate the impact of liver LBP downregulation (using nanoparticles containing siRNA- Lbp) on liver steatosis, inflammation and fibrosis during a standard chow diet (STD), and in pathological non-obesogenic conditions, under a methionine and choline deficient diet (MCD, 5 weeks). Under STD, liver Lbp gene knockdown led to a significant increase in gene expression markers of liver inflammation (Itgax, Tlr4, Ccr2, Ccl2 and Tnf), liver injury (Krt18 and Crp), fibrosis (Col4a1, Col1a2 and Tgfb1), endoplasmic reticulum (ER) stress (Atf6, Hspa5 and Eif2ak3) and protein carbonyl levels. As expected, the MCD increased hepatocyte vacuolation, liver inflammation and fibrosis markers, also increasing liver Lbp mRNA. In this model, liver Lbp gene knockdown resulted in a pronounced worsening of the markers of liver inflammation (also including CD68 and MPO activity), fibrosis, ER stress and protein carbonyl levels, all indicative of non-alcoholic steatohepatitis (NASH) progression. At cellular level, Lbp gene knockdown also increased expression of the proinflammatory mediators (Il6, Ccl2), and markers of fibrosis (Col1a1, Tgfb1) and protein carbonyl levels. In agreement with these findings, liver LBP mRNA in humans positively correlated with markers of liver damage (circulating hsCRP, ALT activity, liver CRP and KRT18 gene expression), and with a network of genes involved in liver inflammation, innate and adaptive immune system, endoplasmic reticulum stress and neutrophil degranulation (all with q-value<0.05). In conclusion, current findings suggest that a significant downregulation in liver LBP levels promotes liver oxidative stress and inflammation, aggravating NASH progression, in physiological and pathological non-obesogenic conditions.
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Affiliation(s)
- Edward Milbank
- NeurObesity Group, Department of Physiology, CIMUS, University of Santiago de Compostela-Instituto de Investigación Sanitaria, Santiago de Compostela 15782, Spain; CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), and Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | | | - Nathalia Dragano
- NeurObesity Group, Department of Physiology, CIMUS, University of Santiago de Compostela-Instituto de Investigación Sanitaria, Santiago de Compostela 15782, Spain; CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), and Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - Jèssica Latorre
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), and Instituto de Salud Carlos III (ISCIII), Madrid, Spain; Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), Girona, Spain
| | | | - Jordi Mayneris-Perxachs
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), and Instituto de Salud Carlos III (ISCIII), Madrid, Spain; Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), Girona, Spain
| | - Francisco Ortega
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), and Instituto de Salud Carlos III (ISCIII), Madrid, Spain; Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), Girona, Spain
| | - Massimo Federici
- Department of Systems Medicine, University of Rome Tor Vergata, Via Montpellier, Rome, Italy
| | - Remy Burcelin
- Institut des Maladies Métaboliques et Cardiovasculaires, INSERM U1048, Université Paul Sabatier, Toulouse, France
| | | | | | | | - Miguel López
- NeurObesity Group, Department of Physiology, CIMUS, University of Santiago de Compostela-Instituto de Investigación Sanitaria, Santiago de Compostela 15782, Spain; CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), and Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - José Manuel Fernández-Real
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), and Instituto de Salud Carlos III (ISCIII), Madrid, Spain; Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), Girona, Spain; Department of Medicine, University of Girona, Girona, Spain.
| | - José María Moreno-Navarrete
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), and Instituto de Salud Carlos III (ISCIII), Madrid, Spain; Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), Girona, Spain; Department of Medicine, University of Girona, Girona, Spain.
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Ferreira RRDS, Ortega F. [The sovereignty of the visible: how traumatic memory becomes traumatic stress]. CAD SAUDE PUBLICA 2023; 39:e00132622. [PMID: 36946798 DOI: 10.1590/0102-311xpt132622] [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] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Accepted: 01/24/2023] [Indexed: 03/15/2023] Open
Abstract
Since the release of the third version of the Diagnostic and Statistical Manual of Mental Disorders (DSM-III), biological psychiatry has been systematically applying its classification reasoning to social phenomena of many natures. From this perspective, the discourse of trauma gained relevance and events of devastating magnitude began to receive neurobehavioral interpretations until finally being recognized less for their cultural and subjective effects than for the physiological changes they cause. By a narrative review, this study aims to analyze the transition of traumatic rationality from the 19th century, when trauma was associated with the cognitive concept of memory, to the 20th century, when this phenomenon was finally attached to neuroscientific research on stress. The plurality of conceptual models and deterministic paradigms can contribute to the fact that trauma research produces multifactorial coping protocols more appropriate to the human experience of post-traumatic suffering.
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Affiliation(s)
- Ramon Reis Dos Santos Ferreira
- Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil
- Pontifícia Universidade Católica do Rio de Janeiro, Rio de Janeiro, Brasil
| | - Francisco Ortega
- Catalan Institution for Research and Advanced Studies, Barcelona, España
- Universitat Rovira i Virgili, Tarragona, España
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Ortega F, Müller MR. Rethinking structural competency: Continuing education in mental health and practices of territorialisation in Brazil. Glob Public Health 2022:1-16. [DOI: 10.1080/17441692.2022.2157034] [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: 12/23/2022]
Affiliation(s)
- Francisco Ortega
- Catalan institution for Research and Advanced Studies (ICREA), Barcelona, Spain
- Medical Anthropology Research Center, Universitat Rovira i Virgili, Tarragona, Spain
| | - Manuela Rodrigues Müller
- Faculdade de Ciências Médicas, Universidade do Estado do Rio, de Janeiro (FCM-UERJ), Rio de Janeiro, Brazil
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Ramon MA, Esteban C, Ortega F, Cebollero P, Carrascosa I, Martinez-González C, Sobradillo P, Soler-Cataluña JJ, Miravitlles M, García-Río F. Discriminant Validity of a Single Clinical Question for the Screening of Inactivity in Individuals Living with COPD. Int J Chron Obstruct Pulmon Dis 2022; 17:3033-3044. [PMID: 36483675 PMCID: PMC9725925 DOI: 10.2147/copd.s378758] [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: 06/16/2022] [Accepted: 11/24/2022] [Indexed: 12/05/2022] Open
Abstract
Introduction Quantifying physical activity in chronic obstructive pulmonary disease (COPD) with questionnaires and activity monitors in clinical practice is challenging. The aim of the present study was to analyse the discriminant validity of a single clinical question for the screening of inactive individuals living with COPD. Methods A multicentre study was carried out in stable COPD individuals both in primary and tertiary care. Patients wore the Dynaport accelerometer for 8 days and then answered 5 physical activity questions developed for the study, referring to the week in which their physical activity was monitored. Receiver operating characteristic (ROC) curve analysis with physical activity level (PAL) as the gold standard reference was used to determine the best cut-off point for each of the 5 clinical physical activity questions tested. Results A total of 86 COPD participants were analysed (males 68.6%; mean (SD) age 66.6 (8.5) years; FEV1 50.9 (17.3)% predicted; mean of 7305 (3906) steps/day). Forty-two (48.8%) participants were considered physically inactive (PAL ≤1.69). Answers to 4 out of 5 questions significantly differed in active vs inactive patients. The Kappa index and ROC curves showed that the answer to the question "On average, how many minutes per day do you walk briskly?" had the best discriminative capacity for inactivity, with an area under the curve (AUC) (95% Confidence interval (CI)) of 0.73 (0.63-0.84) and 30 min/day was identified as the best cut-off value (sensitivity (95% CI): 0.75 (0.60-0.87); specificity: 0.76 (0.61-0.88)). Conclusion The present results indicate that self-reported brisk walk time lower than 30 min/day may be a valid tool for the screening of inactivity in individuals living with COPD in routine care, if more detailed physical activity measures are not feasible.
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Affiliation(s)
- Maria Antonia Ramon
- Pneumology Department, Hospital Universitari Vall d´Hebron/Vall d’Hebron Institut de Recerca (VHIR), Vall d’Hebron Barcelona Hospital Campus; Physical Therapy Department, Universitat Internacional de Catalunya and CIBER de Enfermedades Respiratorias (CIBERES), Barcelona, Spain
| | - Cristóbal Esteban
- Respiratory Department, Hospital Galdakao; Health Services Research on Chronic Patients Network (REDISSEC) and BioCrues-Bizkaia Health Research Institute, Baracaldo, Spain
| | - Francisco Ortega
- Pneumology Department, Hospital Universitario Virgen del Rocío; Instituto de Biomedicina de Sevilla (IBiS), and CIBER de Enfermedades Respiratorias (CIBERES), Sevilla, Spain
| | - Pilar Cebollero
- Pneumology Department, Hospital CH de Navarra, Pamplona, Spain
| | - Inés Carrascosa
- Pneumology Department, Hospital Urduliz, Urduliz, Bizkaia, Spain
| | | | | | | | - Marc Miravitlles
- Pneumology Department, Hospital Universitari Vall d´Hebron/Vall d’Hebron Institut de Recerca (VHIR), Vall d’Hebron Barcelona Hospital Campus and CIBER de Enfermedades Respiratorias (CIBERES), Barcelona, Spain,Correspondence: Marc Miravitlles, Pneumology Department, Hospital Universitari Vall d´Hebron/Vall d’Hebron Institut de Recerca (VHIR), Vall d´Hebron Barcelona Hospital Campus, P. Vall d’Hebron 119-129, Barcelona, 08035, Spain, Tel +34 934893000, Fax +34 93 274 82 08, Email
| | - Francisco García-Río
- Pneumology Department, Hospital Universitario La Paz-IdiPAZ, and CIBER de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, Madrid, Spain
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Latorre J, Martínez C, Ortega F, Oliveras-Cañellas N, Díaz-Sáez F, Aragonés J, Camps M, Gumà A, Ricart W, Fernández-Real JM, Moreno-Navarrete JM. The relevance of EGFR, ErbB receptors and neuregulins in human adipocytes and adipose tissue in obesity. Biomed Pharmacother 2022; 156:113972. [DOI: 10.1016/j.biopha.2022.113972] [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: 08/03/2022] [Revised: 10/28/2022] [Accepted: 11/02/2022] [Indexed: 11/10/2022] Open
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25
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Müller MR, Ortega F, Martínez-Hernáez A. The woman who chose the terreiro. Lay care and medical landscapes in mental health care in Rio de Janeiro. Anthropol Med 2022; 29:351-366. [PMID: 36539916 DOI: 10.1080/13648470.2022.2144131] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Brazilian mental health care reform understands mental health as a complex social process. There is a large literature production within the country focused on deinstitutionalization policy, social determinants of mental health and human rights, however, with little recognition beyond Latin American borders. In addition, cultural dimensions of mental suffering have been neglected in Brazilian debates which limits an expanded understanding of health care and users' inclusion. This paper aims to discuss the role of cultural determinants in mental health care in Brazil. We followed a patient in the city of Rio de Janeiro who opted for therapy based on her religious beliefs-using ayahuasca in the context of the Afro Brazilian religion of Umbanda-over the treatment-as-usual in mental health. We draw on the notions of autoatención (self, domestic, and group-care in lay contexts) and medical landscapes to examine how therapeutic negotiations reflect embodied cultural traits and both social and political determinants shaping therapeutic spaces. We argue that recognizing sociocultural differences and therapeutic negotiations are key elements in making a more inclusive health practice. Moreover, this recognition enables identifying and reasoning the broader social processes framing health practices. This debate is relevant to the Brazilian mental health context and to other scenarios, especially those where local and global knowledge and practices in mental health are entangled.
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Affiliation(s)
- Manuela R Müller
- Faculdade de Ciências Médicas, State University of Rio de Janeiro, Rio de Janeiro, Brazil.,Faculdade de Medicina, Universidade Estácio de Sá, Rio de Janeiro, Brazil
| | - Francisco Ortega
- Catalan Institution for Research and Advanced Studies (ICREA), Barcelona, Spain.,Medical Anthropology Research Center, Universitat Rovira i Virgili, Tarragona, Spain
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Abstract
The interaction of particles with fluid interfaces is ubiquitous in synthetic and natural work, involving two types of interactions: particle-interface interactions (trapping energy) and interparticle interactions. Therefore, it is urgent to gain a deep understanding of the main forces controlling the trapping of particles at fluid interfaces, and their assembly to generate a broad range of structures characterized by different degrees of order. This Perspective tries to provide an overview of the main contributions to the energetic landscape controlling the assembly of particles at fluid interfaces, which is essential for exploiting this type of interfacial systems as platforms for the fabrication of interface-based soft materials with technological interest.
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Affiliation(s)
- Eduardo Guzmán
- Departamento
de Química Física, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040Madrid, Spain
- Instituto
Pluridisciplinar, Universidad Complutense
de Madrid, Paseo Juan XXIII 1, 28040Madrid, Spain
| | - Francisco Ortega
- Departamento
de Química Física, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040Madrid, Spain
- Instituto
Pluridisciplinar, Universidad Complutense
de Madrid, Paseo Juan XXIII 1, 28040Madrid, Spain
| | - Ramón G. Rubio
- Departamento
de Química Física, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040Madrid, Spain
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Abstract
Promoting evidence-based treatments and the human rights of people living with mental illness are the two pillars of Global Mental Health (GMH). Critics counter that human rights narratives must also include social justice frameworks. We draw on the cases of autism and ADHD in Brazil to discuss the role of human rights in mental health in the context of GMH. A human rights perspective involves citizenship rights for individuals living with mental distress and provides a framework to problematise the logic of GMH centred on individual rights and rights to treatment. We begin with an overview on human rights discussions in GMH and examine the introduction of human rights discourses in the Brazilian psychiatric reform. We then explore how autism and ADHD became priorities of GMH interventions as well as the constitution of two styles of activism and mobilisation of human rights around these conditions. One follows the universal public health logic and promotes health as a social right. The other follows the logic of parents' associations that redefined those conditions as forms of disability to advocate for specialised services and interventions. Finally, we discuss these forms of human rights mobilisation and their implications for Brazilian mental health and GMH.
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Affiliation(s)
- Francisco Ortega
- Catalan institution for Research and Advanced Studies (ICREA), Barcelona, Spain.,Medical Anthropology Research Center, Universitat Rovira i Virgili, Tarragona, Spain
| | - Manuela Rodrigues Müller
- Faculdade de Ciências Médicas, Universidade do Estado do Rio de Janeiro (FCM-UERJ), Rio de Janeiro, Brazil
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Latorre J, Mayneris-Perxachs J, Oliveras-Cañellas N, Ortega F, Comas F, Fernández-Real JM, Moreno-Navarrete JM. Adipose tissue cysteine dioxygenase type 1 is associated with an anti-inflammatory profile, impacting on systemic metabolic traits. EBioMedicine 2022; 85:104302. [PMID: 36206624 PMCID: PMC9535416 DOI: 10.1016/j.ebiom.2022.104302] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [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: 07/05/2022] [Revised: 08/11/2022] [Accepted: 09/21/2022] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND Adipose tissue is a source of multiple factors that modulate systemic insulin sensitivity and cardiovascular risk. Taurine is obtained from the diet but it is less known that it is endogenously synthesized by cysteine dioxygenase type 1 (CDO1). CDO1 exerts a role in adipose tissue from rodent models, but the potential translational value in humans is not available in the literature. METHODS CDO1 gene expression was analysed in visceral and subcutaneous adipose tissue samples in association with metabolic traits in participants with different degrees of obesity in four independent cohorts. CDO1 was also evaluated in isolated human adipocytes in vitro. Mechanistically, CDO1gene knockdown (KD) of human preadipocytes and adipose-derived mesenchymal stem cells (ASC52telo) (using lentiviral particles) was also evaluated. Mitochondrial respiratory function of adipocytes was evaluated using Seahorse. FINDINGS Both visceral (VAT) and subcutaneous adipose tissue (SAT) CDO1 mRNA was associated with gene expression markers of adipose tissue function in the four cohorts. Higher CDO1 expression was linked to decreased fasting triglycerides and blood HbA1c even after adjusting by age, BMI and sex. In addition, CDO1 mRNA positively correlated with the expression of genes involved in adipogenesis and negatively with different inflammatory markers. Both VAT and SAT CDO1 mRNA was mainly expressed in adipocytes and significantly increased during adipocyte differentiation, but attenuated under inflammatory conditions. Mechanistically, CDO1 gene KD reduced taurine biosynthesis, evidencing lower CDO1 activity. In both human preadipocytes and ASC52telo cells, CDO1 gene KD resulted in decreased gene expression markers of adipogenesis (ADIPOQ, FABP4, FASN, SLC2A4, CEBPA) and increased inflammatory genes (TNF and IL6) during adipocyte differentiation. Of note, CDO1 gene KD led to decreased mitochondrial respiratory function in parallel to decreased expression of mitochondrial function-, but not biogenesis-related genes. INTERPRETATION Current findings show the relevance of CDO1 in adipose tissue physiology, suggesting its contribution to an improved systemic metabolic profile. FUNDING This work was partially supported by research grants PI16/01173, PI19/01712, PI20/01090 and PI21/01361 from the Instituto de Salud Carlos III from Spain, Fondo Europeo de Desarrollo Regional (FEDER) funds, and VII Spanish Diabetes Association grants to Basic Diabetes Research Projects led by young researchers.
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Affiliation(s)
- Jèssica Latorre
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), CIBEROBN (CB06/03/010), 17190 Salt, Spain,CIBER de la Fisiopatología de la Obesidad y Nutrición (CIBEROBN) and Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain
| | - Jordi Mayneris-Perxachs
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), CIBEROBN (CB06/03/010), 17190 Salt, Spain,CIBER de la Fisiopatología de la Obesidad y Nutrición (CIBEROBN) and Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain
| | - Núria Oliveras-Cañellas
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), CIBEROBN (CB06/03/010), 17190 Salt, Spain,CIBER de la Fisiopatología de la Obesidad y Nutrición (CIBEROBN) and Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain
| | - Francisco Ortega
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), CIBEROBN (CB06/03/010), 17190 Salt, Spain,CIBER de la Fisiopatología de la Obesidad y Nutrición (CIBEROBN) and Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain
| | - Ferran Comas
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), CIBEROBN (CB06/03/010), 17190 Salt, Spain,CIBER de la Fisiopatología de la Obesidad y Nutrición (CIBEROBN) and Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain
| | - José Manuel Fernández-Real
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), CIBEROBN (CB06/03/010), 17190 Salt, Spain,CIBER de la Fisiopatología de la Obesidad y Nutrición (CIBEROBN) and Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain,Department of Medical Sciences, School of Medicine, University of Girona, 17071 Girona, Spain,Corresponding authors at: Section of Diabetes, Endocrinology and Nutrition Hospital of Girona “Dr Josep Trueta” Carretera de França s/n, 17007, Girona, Spain.
| | - José María Moreno-Navarrete
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), CIBEROBN (CB06/03/010), 17190 Salt, Spain,CIBER de la Fisiopatología de la Obesidad y Nutrición (CIBEROBN) and Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain,Corresponding authors at: Section of Nutrition, Eumetabolism and Health Biomedical Research Institute of Girona “Dr Josep Trueta”, C/ Dr. Castany s/n, 17190, Salt, Spain.
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Martínez C, Latorre J, Ortega F, Arnoriaga-Rodríguez M, Lluch A, Oliveras-Cañellas N, Díaz-Sáez F, Aragonés J, Camps M, Gumà A, Ricart W, Fernández-Real JM, Moreno-Navarrete JM. Serum neuregulin 4 is negatively correlated with insulin sensitivity in humans and impairs mitochondrial respiration in HepG2 cells. Front Physiol 2022; 13:950791. [PMID: 36187779 PMCID: PMC9521671 DOI: 10.3389/fphys.2022.950791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 08/30/2022] [Indexed: 11/16/2022] Open
Abstract
Neuregulin 4 (NRG4) has been described to improve metabolic disturbances linked to obesity status in rodent models. The findings in humans are controversial. We aimed to investigate circulating NRG4 in association with insulin action in humans and the possible mechanisms involved. Insulin sensitivity (euglycemic hyperinsulinemic clamp) and serum NRG4 concentration (ELISA) were analysed in subjects with a wide range of adiposity (n = 89). In vitro experiments with human HepG2 cell line were also performed. Serum NRG4 was negatively correlated with insulin sensitivity (r = −0.25, p = 0.02) and positively with the inflammatory marker high-sensitivity C reative protein (hsCRP). In fact, multivariant linear regression analyses showed that insulin sensitivity contributed to BMI-, age-, sex-, and hsCRP-adjusted 7.2% of the variance in serum NRG4 (p = 0.01). No significant associations were found with adiposity measures (BMI, waist circumference or fat mass), plasma lipids (HDL-, LDL-cholesterol, or fasting triglycerides) or markers of liver injury. Cultured hepatocyte HepG2 treated with human recombinant NRG4 had an impact on hepatocyte metabolism, leading to decreased gluconeogenic- and mitochondrial biogenesis-related gene expression, and reduced mitochondrial respiration, without effects on expression of lipid metabolism-related genes. Similar but more pronounced effects were found after neuregulin 1 administration. In conclusion, sustained higher serum levels of neuregulin-4, observed in insulin resistant patients may have deleterious effects on metabolic and mitochondrial function in hepatocytes. However, findings from in vitro experiments should be confirmed in human primary hepatocytes.
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Affiliation(s)
- Cristina Martínez
- Department of Diabetes, Endocrinology and Nutrition, Institut d’Investigació Biomèdica de Girona, Girona, Spain
- CIBEROBN (CB06/03/010), Instituto de Salud Carlos III, Madrid, Spain
| | - Jèssica Latorre
- Department of Diabetes, Endocrinology and Nutrition, Institut d’Investigació Biomèdica de Girona, Girona, Spain
- CIBEROBN (CB06/03/010), Instituto de Salud Carlos III, Madrid, Spain
| | - Francisco Ortega
- Department of Diabetes, Endocrinology and Nutrition, Institut d’Investigació Biomèdica de Girona, Girona, Spain
- CIBEROBN (CB06/03/010), Instituto de Salud Carlos III, Madrid, Spain
| | - María Arnoriaga-Rodríguez
- Department of Diabetes, Endocrinology and Nutrition, Institut d’Investigació Biomèdica de Girona, Girona, Spain
- CIBEROBN (CB06/03/010), Instituto de Salud Carlos III, Madrid, Spain
| | - Aina Lluch
- Department of Diabetes, Endocrinology and Nutrition, Institut d’Investigació Biomèdica de Girona, Girona, Spain
- CIBEROBN (CB06/03/010), Instituto de Salud Carlos III, Madrid, Spain
| | - Núria Oliveras-Cañellas
- Department of Diabetes, Endocrinology and Nutrition, Institut d’Investigació Biomèdica de Girona, Girona, Spain
- CIBEROBN (CB06/03/010), Instituto de Salud Carlos III, Madrid, Spain
| | - Francisco Díaz-Sáez
- Departament de Bioquímica i Biomedicina Molecular, Facultat de Biologia, Universitat de Barcelona (UB), Barcelona, Spain
- Institut de Biomedicina de la Universitat de Barcelona (IBUB), Universitat de Barcelona (UB), Barcelona, Spain
| | - Julian Aragonés
- Research Unit, Hospital of Santa Cristina, Research Institute Princesa, Autonomous University of Madrid, Madrid, Spain
- CIBER de Enfermedades Cardiovasculares, Carlos III Health Institute, Madrid, Spain
| | - Marta Camps
- Departament de Bioquímica i Biomedicina Molecular, Facultat de Biologia, Universitat de Barcelona (UB), Barcelona, Spain
- Institut de Biomedicina de la Universitat de Barcelona (IBUB), Universitat de Barcelona (UB), Barcelona, Spain
- CIBER de Diabetes y Enfermedades Metabólicas Asociadas, Instituto de Salud Carlos III, Madrid, Spain
| | - Anna Gumà
- Departament de Bioquímica i Biomedicina Molecular, Facultat de Biologia, Universitat de Barcelona (UB), Barcelona, Spain
- Institut de Biomedicina de la Universitat de Barcelona (IBUB), Universitat de Barcelona (UB), Barcelona, Spain
- CIBER de Diabetes y Enfermedades Metabólicas Asociadas, Instituto de Salud Carlos III, Madrid, Spain
| | - Wifredo Ricart
- Department of Diabetes, Endocrinology and Nutrition, Institut d’Investigació Biomèdica de Girona, Girona, Spain
- CIBEROBN (CB06/03/010), Instituto de Salud Carlos III, Madrid, Spain
| | - José Manuel Fernández-Real
- Department of Diabetes, Endocrinology and Nutrition, Institut d’Investigació Biomèdica de Girona, Girona, Spain
- CIBEROBN (CB06/03/010), Instituto de Salud Carlos III, Madrid, Spain
- Department of Medicine, University of Girona, Girona, Spain
- *Correspondence: José Manuel Fernández-Real, ; José María Moreno-Navarrete,
| | - José María Moreno-Navarrete
- Department of Diabetes, Endocrinology and Nutrition, Institut d’Investigació Biomèdica de Girona, Girona, Spain
- CIBEROBN (CB06/03/010), Instituto de Salud Carlos III, Madrid, Spain
- *Correspondence: José Manuel Fernández-Real, ; José María Moreno-Navarrete,
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Latorre J, Díaz-Trelles R, Comas F, Gavaldà-Navarro A, Milbank E, Dragano N, Morón-Ros S, Mukthavaram R, Ortega F, Castells-Nobau A, Oliveras-Cañellas N, Ricart W, Karmali PP, Tachikawa K, Chivukula P, Villarroya F, López M, Giralt M, Fernández-Real JM, Moreno-Navarrete JM. Downregulation of hepatic lipopolysaccharide binding protein improves lipogenesis-induced liver lipid accumulation. Molecular Therapy - Nucleic Acids 2022; 29:599-613. [PMID: 36090751 PMCID: PMC9418749 DOI: 10.1016/j.omtn.2022.08.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Accepted: 08/01/2022] [Indexed: 11/26/2022]
Abstract
Circulating lipopolysaccharide-binding protein (LBP) is increased in individuals with liver steatosis. We aimed to evaluate the possible impact of liver LBP downregulation using lipid nanoparticle-containing chemically modified LBP small interfering RNA (siRNA) (LNP-Lbp UNA-siRNA) on the development of fatty liver. Weekly LNP-Lbp UNA-siRNA was administered to mice fed a standard chow diet, a high-fat and high-sucrose diet, and a methionine- and choline-deficient diet (MCD). In mice fed a high-fat and high-sucrose diet, which displayed induced liver lipogenesis, LBP downregulation led to reduced liver lipid accumulation, lipogenesis (mainly stearoyl-coenzyme A desaturase 1 [Scd1]) and lipid peroxidation-associated oxidative stress markers. LNP-Lbp UNA-siRNA also resulted in significantly decreased blood glucose levels during an insulin tolerance test. In mice fed a standard chow diet or an MCD, in which liver lipogenesis was not induced or was inhibited (especially Scd1 mRNA), liver LBP downregulation did not impact on liver steatosis. The link between hepatocyte LBP and lipogenesis was further confirmed in palmitate-treated Hepa1-6 cells, in primary human hepatocytes, and in subjects with morbid obesity. Altogether, these data indicate that siRNA against liver Lbp mRNA constitutes a potential target therapy for obesity-associated fatty liver through the modulation of hepatic Scd1.
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Affiliation(s)
- Jessica Latorre
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), CIBEROBN (CB06/03/010) and Instituto de Salud Carlos III (ISCIII), 17007 Girona, Spain
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), 28029, Madrid, Spain
| | | | - Ferran Comas
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), CIBEROBN (CB06/03/010) and Instituto de Salud Carlos III (ISCIII), 17007 Girona, Spain
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), 28029, Madrid, Spain
| | - Aleix Gavaldà-Navarro
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), 28029, Madrid, Spain
- Department of Biochemistry and Molecular Biomedicine, Faculty of Biology and Institute of Biomedicine (IBUB), University of Barcelona, CIBEROBN (CB06/03/025), 08028 Barcelona, Catalonia, Spain
| | - Edward Milbank
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), 28029, Madrid, Spain
- NeurObesity Group, Department of Physiology, CIMUS, University of Santiago de Compostela-Instituto de Investigación Sanitaria, 15782 Santiago de Compostela, Spain
| | - Nathalia Dragano
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), 28029, Madrid, Spain
- NeurObesity Group, Department of Physiology, CIMUS, University of Santiago de Compostela-Instituto de Investigación Sanitaria, 15782 Santiago de Compostela, Spain
| | - Samantha Morón-Ros
- Department of Biochemistry and Molecular Biomedicine, Faculty of Biology and Institute of Biomedicine (IBUB), University of Barcelona, CIBEROBN (CB06/03/025), 08028 Barcelona, Catalonia, Spain
| | | | - Francisco Ortega
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), CIBEROBN (CB06/03/010) and Instituto de Salud Carlos III (ISCIII), 17007 Girona, Spain
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), 28029, Madrid, Spain
| | - Anna Castells-Nobau
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), CIBEROBN (CB06/03/010) and Instituto de Salud Carlos III (ISCIII), 17007 Girona, Spain
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), 28029, Madrid, Spain
| | - Núria Oliveras-Cañellas
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), CIBEROBN (CB06/03/010) and Instituto de Salud Carlos III (ISCIII), 17007 Girona, Spain
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), 28029, Madrid, Spain
| | - Wifredo Ricart
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), CIBEROBN (CB06/03/010) and Instituto de Salud Carlos III (ISCIII), 17007 Girona, Spain
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), 28029, Madrid, Spain
| | | | | | | | - Francesc Villarroya
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), 28029, Madrid, Spain
- Department of Biochemistry and Molecular Biomedicine, Faculty of Biology and Institute of Biomedicine (IBUB), University of Barcelona, CIBEROBN (CB06/03/025), 08028 Barcelona, Catalonia, Spain
| | - Miguel López
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), 28029, Madrid, Spain
- NeurObesity Group, Department of Physiology, CIMUS, University of Santiago de Compostela-Instituto de Investigación Sanitaria, 15782 Santiago de Compostela, Spain
| | - Marta Giralt
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), 28029, Madrid, Spain
- Department of Biochemistry and Molecular Biomedicine, Faculty of Biology and Institute of Biomedicine (IBUB), University of Barcelona, CIBEROBN (CB06/03/025), 08028 Barcelona, Catalonia, Spain
| | - José Manuel Fernández-Real
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), CIBEROBN (CB06/03/010) and Instituto de Salud Carlos III (ISCIII), 17007 Girona, Spain
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), 28029, Madrid, Spain
- Department of Medicine, University of Girona, 17003 Girona, Spain
| | - José María Moreno-Navarrete
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), CIBEROBN (CB06/03/010) and Instituto de Salud Carlos III (ISCIII), 17007 Girona, Spain
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), 28029, Madrid, Spain
- Corresponding author José María Moreno-Navarrete, PhD, Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), CIBEROBN (CB06/03/010) and Instituto de Salud Carlos III (ISCIII), 17007 Girona, Spain.
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Williams AS, Garcia J, Ortega F. Errata to "Understanding Multimodal User Gesture and Speech Behavior for Object Manipulation in Augmented Reality Using Elicitation". IEEE Trans Vis Comput Graph 2022; 28:2808. [PMID: 35617166 DOI: 10.1109/tvcg.2022.3164438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
• All time information was reported as milliseconds but given as 100ths of a second.• Additionally, the time differences between gesture initiation and speech initiation were reported as being 60% of their actual value. This resulted in those time differences being reported as 6 times less than they were (e.g., 130ms should be 780ms).
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Hanusch B, Sinningen K, Moreno L, De Henauw S, Gottrand F, Ortega F, Lücke T, Kersting M. Relationship of Sleep Duration, Concentration, BMI and Dietary Behavior of European Adolescents – Results From the HELENA-Study. Curr Dev Nutr 2022. [PMCID: PMC9194129 DOI: 10.1093/cdn/nzac064.011] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Objectives Low sleep quality and duration are associated with the development of overweight and obesity. This link is discussed to result from an unfavorable selection of food items after sleep deprivation on the one hand; on the other hand, fatigue also reduces the willingness to engage in physical activity. Furthermore, sleep duration and quality seem to be associated with cognitive development in children. The aim of this analysis was to assess these associations in European adolescents. Methods As part of the Healthy Lifestyle in Europe by Nutrition in Adolescence “HELENA” study (October 2006 - June 2007), concentration ability was assessed in 500 adolescents (12.5–17.4 years) using d2 test which was evaluated in age-corrected percentiles (concentration index). Sleep duration during the week and during the weekend was surveyed and divided into age-appropriate groups (too short, optimal, too long) with an optimal sleep duration of 9–12 h for 12-year-olds and 8–10 h for 13–18-year-olds. Dietary behavior was assessed using two 24 h recalls, which were subsequently summarized in the Diet Quality Index for adolescents (DQI). Body height and weight were collected and the calculated BMI was subsequently transformed to percentiles. Whether sleep duration was associated with BMI, dietary behavior, or attention was examined using the Kruskal-Wallis test. Furthermore, Spearman correlations were performed. Results On average, 59.4% (n: ♀ = 167; ♂ = 130) of adolescents slept for the optimal duration, 36.4% (n: ♀ = 96; ♂ = 86) slept too short, and 4.2% slept longer than recommended. No significant difference was observed between groups of sleep duration within BMI percentiles (p = 0.193), attention (p = 0.520), and DQI (p = 0.742). In addition, no significant correlation was observed between average sleep duration, BMI percentile, attention, and DQI. There was a significant negative correlation between age and sleep duration (r = −0.317; p < 0.001). Conclusions Even though slightly more than one third of the adolescents within the HELENA study got less than optimal sleep, no differences were found in terms of their BMI, dietary behavior or ability to concentrate, but age might play a role. Funding Sources European Community sixth RTD Framework Programme.
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Affiliation(s)
- Beatrice Hanusch
- Research Department of Child Nutrition, University Hospital of Pediatrics and Adolescent Medicine, St. Josef-Hospital, Ruhr-University Bochum
| | - Kathrin Sinningen
- Research Department of Child Nutrition, University Hospital of Pediatrics and Adolescent Medicine, St. Josef-Hospital, Ruhr-University Bochum
| | - Luis Moreno
- Universidad de Zaragoza, Growth, Exercise, NUtrition and Development (GENUD) research group
| | - Stefaan De Henauw
- Ghent University, Department of Public Health and Primary Care, Faculty of Medicine and Health Sciences
| | - Frederic Gottrand
- Univ. Lille, Inserm, CHU Lille, U1286 - INFINITE - Institute for Translational Research in Inflammation, and CIC 1403 - Clinical Investigation Center
| | - Francisco Ortega
- University of Granada, PROFITH ‘PROmoting FITness and Health Through Physical Activity’ Research Group, Sport and Health University Research Institute (iMUDS), Department of Physical Education and Sports, Faculty of Sport Sciences
| | - Thomas Lücke
- Research Department of Child Nutrition, University Hospital of Pediatrics and Adolescent Medicine, St. Josef-Hospital, Ruhr-University Bochum
| | - Mathilde Kersting
- Research Department of Child Nutrition, University Hospital of Pediatrics and Adolescent Medicine, St. Josef-Hospital, Ruhr-University Bochum
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Martín-Roca J, Jiménez M, Ortega F, Calero C, Valeriani C, Rubio RG, Martínez-Pedrero F. Rotating Micro-Spheres for adsorption monitoring at a fluid interface. J Colloid Interface Sci 2022; 614:378-388. [PMID: 35114591 DOI: 10.1016/j.jcis.2022.01.110] [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] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 01/01/2022] [Accepted: 01/17/2022] [Indexed: 01/18/2023]
Abstract
HYPOTHESIS A broad range of phenomena, such as emulsification and emulsion stability, foam formation or liquid evaporation, are closely related to the dynamics of adsorbing colloidal particles. Elucidation of the mechanisms implied is key to a correct design of many different types of materials. EXPERIMENTS Microspheres forced to rotate near a fluid interface exhibit a roto-translational hydrodynamic mechanism that is hindered by capillary torques as soon as the particles protrude the interface. Under these conditions, the time evolution in the ratio of moving spheres provides a direct description of the adsorption kinetics, while microscopy monitoring of particle acceleration\deceleration informs about the adsorption\desorption dynamics. In this work, the proposed strategy is applied at an air/water interface loaded with spherical magnetic particles negatively charged, forced to rotate by the action of a rotating magnetic field. FINDINGS The proposed method enables the adsorption/desorption dynamics to be followed during the earliest phase of the process, when desorption of a small fraction of particles is detected, as well as to estimate approximated values of the adsorption/desorption constants. The results obtained show that the addition of a monovalent salt or a cationic (anionic) surfactant promotes (inhibits) both adsorption and formation of permanent bonds between particles.
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Affiliation(s)
- J Martín-Roca
- Departamento de Estructura de la Materia, Física Térmica y Electrónica, Universidad Complutense de Madrid, 28040 Madrid, Spain; GISC-Grupo Interdisciplinar de Sistemas Complejos, 28040 Madrid, Spain
| | - M Jiménez
- Departamento de Química Física, Universidad Complutense de Madrid, Avda. Complutense s/n, Madrid 28040, Spain
| | - F Ortega
- Departamento de Química Física, Universidad Complutense de Madrid, Avda. Complutense s/n, Madrid 28040, Spain; Inst. Pluridisciplinar, Universidad Complutense de Madrid, Paseo Juan 23,1, E-28040 Madrid, Spain
| | - C Calero
- Departament de Física de la Matèria Condensada, Universitat de Barcelona, 08028 Barcelona, Spain; Institut de Nanociència i Nanotecnologia, IN2UB, Universitat de Barcelona, 08028 Barcelona, Spain
| | - Ch Valeriani
- Departamento de Estructura de la Materia, Física Térmica y Electrónica, Universidad Complutense de Madrid, 28040 Madrid, Spain; GISC-Grupo Interdisciplinar de Sistemas Complejos, 28040 Madrid, Spain
| | - R G Rubio
- Departamento de Química Física, Universidad Complutense de Madrid, Avda. Complutense s/n, Madrid 28040, Spain; Inst. Pluridisciplinar, Universidad Complutense de Madrid, Paseo Juan 23,1, E-28040 Madrid, Spain
| | - F Martínez-Pedrero
- Departamento de Química Física, Universidad Complutense de Madrid, Avda. Complutense s/n, Madrid 28040, Spain.
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Guzmán E, Martínez-Pedrero F, Calero C, Maestro A, Ortega F, Rubio RG. A broad perspective to particle-laden fluid interfaces systems: from chemically homogeneous particles to active colloids. Adv Colloid Interface Sci 2022; 302:102620. [PMID: 35259565 DOI: 10.1016/j.cis.2022.102620] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [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: 12/04/2021] [Revised: 02/22/2022] [Accepted: 02/23/2022] [Indexed: 01/12/2023]
Abstract
Particles adsorbed to fluid interfaces are ubiquitous in industry, nature or life. The wide range of properties arising from the assembly of particles at fluid interface has stimulated an intense research activity on shed light to the most fundamental physico-chemical aspects of these systems. These include the mechanisms driving the equilibration of the interfacial layers, trapping energy, specific inter-particle interactions and the response of the particle-laden interface to mechanical perturbations and flows. The understanding of the physico-chemistry of particle-laden interfaces becomes essential for taking advantage of the particle capacity to stabilize interfaces for the preparation of different dispersed systems (emulsions, foams or colloidosomes) and the fabrication of new reconfigurable interface-dominated devices. This review presents a detailed overview of the physico-chemical aspects that determine the behavior of particles trapped at fluid interfaces. This has been combined with some examples of real and potential applications of these systems in technological and industrial fields. It is expected that this information can provide a general perspective of the topic that can be exploited for researchers and technologist non-specialized in the study of particle-laden interfaces, or for experienced researcher seeking new questions to solve.
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Affiliation(s)
- Eduardo Guzmán
- Departamento de Química Física, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain; Unidad de Materia Condensada, Instituto Pluridisciplinar, Universidad Complutense de Madrid, Paseo Juan XXIII 1, 28040 Madrid, Spain.
| | - Fernando Martínez-Pedrero
- Departamento de Química Física, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain.
| | - Carles Calero
- Departament de Física de la Matèria Condensada, Facultat de Física, Universitat de Barcelona, Avenida Diagonal 647, 08028 Barcelona, Spain; Institut de Nanociència i Nanotecnologia, IN2UB, Universitat de Barcelona, Avenida, Diagonal 647, 08028 Barcelona, Spain
| | - Armando Maestro
- Centro de Fı́sica de Materiales (CSIC, UPV/EHU)-Materials Physics Center MPC, Paseo Manuel de Lardizabal 5, 20018 San Sebastián, Spain; IKERBASQUE-Basque Foundation for Science, Plaza Euskadi 5, 48009 Bilbao, Spain
| | - Francisco Ortega
- Departamento de Química Física, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain; Unidad de Materia Condensada, Instituto Pluridisciplinar, Universidad Complutense de Madrid, Paseo Juan XXIII 1, 28040 Madrid, Spain
| | - Ramón G Rubio
- Departamento de Química Física, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain; Unidad de Materia Condensada, Instituto Pluridisciplinar, Universidad Complutense de Madrid, Paseo Juan XXIII 1, 28040 Madrid, Spain.
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Fernández-Peña L, Guzmán E, Fernández-Pérez C, Barba-Nieto I, Ortega F, Leonforte F, Rubio RG, Luengo GS. Study of the Dilution-Induced Deposition of Concentrated Mixtures of Polyelectrolytes and Surfactants. Polymers (Basel) 2022; 14:polym14071335. [PMID: 35406209 PMCID: PMC9003019 DOI: 10.3390/polym14071335] [Citation(s) in RCA: 4] [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: 03/08/2022] [Revised: 03/23/2022] [Accepted: 03/24/2022] [Indexed: 02/07/2023] Open
Abstract
Mixtures of polyelectrolytes and surfactants are commonly used in many technological applications where the challenge is to provide well-defined modifications of the surface properties, as is the case of washing formulations in cosmetics. However, if contemporary experimental and theoretical methods can provide insights on their behavior in concentrated formulations, less is known on their behavior under practical use conditions, e.g., under dilution and vectorization of deposits. This makes it difficult to make predictions for specific performance, as, for example, good hair manageability after a shampoo or a comfortable sensorial appreciation after a skin cleanser. This is especially important when considering the formulation of new, more eco-friendly formulations. In this work, a detailed study of the phase separation process induced by dilution is described, as well as the impact on the deposition of conditioning material on negatively charged surfaces. In order to gain a more detailed physical insight, several polyelectrolyte–surfactant pairs, formed by two different polymers and five surfactants that, although non-natural or eco-friendly, can be considered as models of classical formulations, have been studied. The results evidenced that upon dilution the behavior, and hence its deposition onto the surface, cannot be predicted in terms of the behavior of simpler pseudo-binary (mixtures of a polymer and a surfactant) or pseudo-ternary mixtures (two polymers and a surfactant). In many cases, phase separation was observed for concentrations similar to those corresponding to the components in some technological formulations, whereas the latter appeared as monophasic systems. Therefore, it may be assumed that the behavior in multicomponent formulations is the result of a complex interplay of synergistic interactions between the different components that will require revisiting when new, more eco-sustainable ingredients are considered.
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Affiliation(s)
- Laura Fernández-Peña
- Departamento de Química Física, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain; (L.F.-P.); (C.F.-P.); (I.B.-N.); (F.O.)
- Centro de Espectroscopía y Correlación, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain
| | - Eduardo Guzmán
- Departamento de Química Física, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain; (L.F.-P.); (C.F.-P.); (I.B.-N.); (F.O.)
- Instituto Pluridisciplinar, Universidad Complutense de Madrid, Paseo Juan XXIII 1, 28040 Madrid, Spain
- Correspondence: (E.G.); (R.G.R.); (G.S.L.)
| | - Coral Fernández-Pérez
- Departamento de Química Física, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain; (L.F.-P.); (C.F.-P.); (I.B.-N.); (F.O.)
| | - Irene Barba-Nieto
- Departamento de Química Física, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain; (L.F.-P.); (C.F.-P.); (I.B.-N.); (F.O.)
| | - Francisco Ortega
- Departamento de Química Física, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain; (L.F.-P.); (C.F.-P.); (I.B.-N.); (F.O.)
- Instituto Pluridisciplinar, Universidad Complutense de Madrid, Paseo Juan XXIII 1, 28040 Madrid, Spain
| | - Fabien Leonforte
- L’Oréal Research and Innovation, 1 Avenue Eugène Schueller, 93600 Aulnay-Sous-Bois, France;
| | - Ramón G. Rubio
- Departamento de Química Física, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain; (L.F.-P.); (C.F.-P.); (I.B.-N.); (F.O.)
- Instituto Pluridisciplinar, Universidad Complutense de Madrid, Paseo Juan XXIII 1, 28040 Madrid, Spain
- Correspondence: (E.G.); (R.G.R.); (G.S.L.)
| | - Gustavo S. Luengo
- L’Oréal Research and Innovation, 1 Avenue Eugène Schueller, 93600 Aulnay-Sous-Bois, France;
- Correspondence: (E.G.); (R.G.R.); (G.S.L.)
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Latorre J, Ortega F, Oliveras-Cañellas N, Comas F, Lluch A, Gavaldà-Navarro A, Morón-Ros S, Ricart W, Villarroya F, Giralt M, Fernández-Real JM, Moreno-Navarrete JM. Specific adipose tissue Lbp gene knockdown prevents diet-induced body weight gain, impacting fat accretion-related gene and protein expression. Molecular Therapy - Nucleic Acids 2022; 27:870-879. [PMID: 35141047 PMCID: PMC8807983 DOI: 10.1016/j.omtn.2022.01.002] [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] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Accepted: 01/07/2022] [Indexed: 11/15/2022]
Abstract
Lipopolysaccharide binding protein (Lbp) has been recently identified as a relevant component of innate immunity response associated to adiposity. Here, we aimed to investigate the impact of adipose tissue Lbp on weight gain and white adipose tissue (WAT) in male and female mice fed an obesogenic diet. Specific adipose tissue Lbp gene knockdown was achieved through lentiviral particles containing shRNA-Lbp injected through surgery intervention. In males, WAT Lbp mRNA levels increased in parallel to fat accretion, and specific WAT Lbp gene knockdown led to reduced body weight gain, decreased fat accretion-related gene and protein expression, and increased inguinal WAT basal lipase activity, in parallel to lowered plasma free fatty acids, leptin, triglycerides but higher glycerol levels, resulting in slightly improved insulin action in the insulin tolerance test. In both males and females, inguinal WAT Lbp gene knockdown resulted in increased Ucp1 and Ppargc1a mRNA and Ucp1 protein levels, confirming adipose Lbp as a WAT browning repressor. In perigonadal WAT, Lbp gene knockdown also resulted in increased Ucp1 mRNA levels, but only in female mice, in which it was 500-fold increased. These data suggest specific adipose tissue Lbp gene knockdown as a possible therapeutic approach in the prevention of obesity-associated fat accretion.
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Affiliation(s)
- Jessica Latorre
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), 17190 Salt, Spain
- CIBER de la Fisiopatología de la Obesidad y Nutrición (CIBEROBN) and Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain
| | - Francisco Ortega
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), 17190 Salt, Spain
- CIBER de la Fisiopatología de la Obesidad y Nutrición (CIBEROBN) and Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain
| | - Núria Oliveras-Cañellas
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), 17190 Salt, Spain
- CIBER de la Fisiopatología de la Obesidad y Nutrición (CIBEROBN) and Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain
| | - Ferran Comas
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), 17190 Salt, Spain
- CIBER de la Fisiopatología de la Obesidad y Nutrición (CIBEROBN) and Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain
| | - Aina Lluch
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), 17190 Salt, Spain
- CIBER de la Fisiopatología de la Obesidad y Nutrición (CIBEROBN) and Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain
| | - Aleix Gavaldà-Navarro
- CIBER de la Fisiopatología de la Obesidad y Nutrición (CIBEROBN) and Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain
- Department of Biochemistry and Molecular Biomedicine, Institut de Biomedicina-Institut de Recerca Sant Joan de Déu (IBUB-IRSJD), Universitat de Barcelona, 08028 Barcelona, Spain
| | - Samantha Morón-Ros
- CIBER de la Fisiopatología de la Obesidad y Nutrición (CIBEROBN) and Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain
- Department of Biochemistry and Molecular Biomedicine, Institut de Biomedicina-Institut de Recerca Sant Joan de Déu (IBUB-IRSJD), Universitat de Barcelona, 08028 Barcelona, Spain
| | - Wifredo Ricart
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), 17190 Salt, Spain
- CIBER de la Fisiopatología de la Obesidad y Nutrición (CIBEROBN) and Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain
| | - Francesc Villarroya
- CIBER de la Fisiopatología de la Obesidad y Nutrición (CIBEROBN) and Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain
- Department of Biochemistry and Molecular Biomedicine, Institut de Biomedicina-Institut de Recerca Sant Joan de Déu (IBUB-IRSJD), Universitat de Barcelona, 08028 Barcelona, Spain
| | - Marta Giralt
- CIBER de la Fisiopatología de la Obesidad y Nutrición (CIBEROBN) and Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain
- Department of Biochemistry and Molecular Biomedicine, Institut de Biomedicina-Institut de Recerca Sant Joan de Déu (IBUB-IRSJD), Universitat de Barcelona, 08028 Barcelona, Spain
| | - José Manuel Fernández-Real
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), 17190 Salt, Spain
- CIBER de la Fisiopatología de la Obesidad y Nutrición (CIBEROBN) and Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain
- Department of Medical Sciences, School of Medicine, University of Girona, 17071 Girona, Spain
| | - José María Moreno-Navarrete
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), 17190 Salt, Spain
- CIBER de la Fisiopatología de la Obesidad y Nutrición (CIBEROBN) and Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain
- Department of Medical Sciences, School of Medicine, University of Girona, 17071 Girona, Spain
- Corresponding author J.M. Moreno-Navarrete, Ph.D, Section of Nutrition, Eumetabolism and Health, Biomedical Research Institute of Girona “Dr Josep Trueta”, C/ Dr. Castany s/n, 17190 Salt, Spain.
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Mateos-Maroto A, Fernández-Peña L, Abelenda-Núñez I, Ortega F, Rubio RG, Guzmán E. Polyelectrolyte Multilayered Capsules as Biomedical Tools. Polymers (Basel) 2022; 14:polym14030479. [PMID: 35160468 PMCID: PMC8838751 DOI: 10.3390/polym14030479] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 01/20/2022] [Accepted: 01/22/2022] [Indexed: 12/10/2022] Open
Abstract
Polyelectrolyte multilayered capsules (PEMUCs) obtained using the Layer-by-Layer (LbL) method have become powerful tools for different biomedical applications, which include drug delivery, theranosis or biosensing. However, the exploitation of PEMUCs in the biomedical field requires a deep understanding of the most fundamental bases underlying their assembly processes, and the control of their properties to fabricate novel materials with optimized ability for specific targeting and therapeutic capacity. This review presents an updated perspective on the multiple avenues opened for the application of PEMUCs to the biomedical field, aiming to highlight some of the most important advantages offered by the LbL method for the fabrication of platforms for their use in the detection and treatment of different diseases.
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Affiliation(s)
- Ana Mateos-Maroto
- Departamento de Química Física, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain; (A.M.-M.); (L.F.-P.); (I.A.-N.); (F.O.); (R.G.R.)
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Laura Fernández-Peña
- Departamento de Química Física, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain; (A.M.-M.); (L.F.-P.); (I.A.-N.); (F.O.); (R.G.R.)
- Centro de Espectroscopía y Correlación, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain
| | - Irene Abelenda-Núñez
- Departamento de Química Física, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain; (A.M.-M.); (L.F.-P.); (I.A.-N.); (F.O.); (R.G.R.)
| | - Francisco Ortega
- Departamento de Química Física, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain; (A.M.-M.); (L.F.-P.); (I.A.-N.); (F.O.); (R.G.R.)
- Instituto Pluridisciplinar, Universidad Complutense de Madrid, Paseo Juan XXIII 1, 28040 Madrid, Spain
| | - Ramón G. Rubio
- Departamento de Química Física, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain; (A.M.-M.); (L.F.-P.); (I.A.-N.); (F.O.); (R.G.R.)
- Instituto Pluridisciplinar, Universidad Complutense de Madrid, Paseo Juan XXIII 1, 28040 Madrid, Spain
| | - Eduardo Guzmán
- Departamento de Química Física, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain; (A.M.-M.); (L.F.-P.); (I.A.-N.); (F.O.); (R.G.R.)
- Instituto Pluridisciplinar, Universidad Complutense de Madrid, Paseo Juan XXIII 1, 28040 Madrid, Spain
- Correspondence:
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Abstract
Strong public health governance and leadership driven by scientific evidence, community participation, and attention to social and structural determinants of health are key to effective covid-19 containment. Given the failure of the federal government in Brazil to adopt effective public health measures, state and municipal governments, as well as community activists, have stepped in to fill the void. This essay examines the synergistic role that local governments, public universities, public health institutions and mutual aid initiatives have played in Brazil to advance pandemic control and mitigate the damaging effects of central government policies and neglect. Drawing on literature, media reports, and insights from journalists and activists based in Rio's favelas, we show how grass roots groups take actions that bear complex and vital relationships with local governments, NGOs, universities, and public health institutions. Effective local public health governance goes beyond technical public health responses and involves strategies for countering chronic marginalisation and disempowerment of local communities which open new pathways for creative intermunicipal collaboration, social change, power redistribution. It remains to be seen if actions and emerging networks at the local level can exert pressure on national government while not further exacerbating the polarising politicisation of the pandemic.
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Affiliation(s)
- Francisco Ortega
- Catalan Institution for Research and Advanced Studies (ICREA), Barcelona, Spain.,Medical Anthropology Research Center, Universitat Rovira i Virgili, Tarragona, Spain
| | - Dominique Béhague
- Department of Medicine, Health, and Society, Vanderbilt University, Nashville, USA.,Department of Global Health and Social Medicine, King's College London, London, UK
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Wenceslau LD, Ortega F. From Person to Life: An Anthropological Examination of Primary Health Care Approach to Depression in Rio de Janeiro. Med Anthropol Q 2021; 36:64-82. [PMID: 34661308 DOI: 10.1111/maq.12668] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 07/02/2021] [Accepted: 07/20/2021] [Indexed: 11/26/2022]
Abstract
Mental illness approaches in public health have resulted in controversies around the adequacy of interpretative and therapeutic models. These controversies engage polarized debates amid understandings of mental illnesses either as brain disorders or as socioculturally determined entities. Aiming to investigate how mental health care is implemented in a Latin American metropolis, we conducted an ethnographic study of the approach to depression in a primary care unit in Rio de Janeiro between 2016 and 2017. "Life" emerged from our fieldwork as the main local category for understanding the experiences of patients with depressive symptoms and the work of reengagement performed by family physicians. With this investigation, we seek to provide insights into an approach to mental illness in primary health care that moves away from polarized interpretive frameworks and remains open to the singularities of patients' experiences of suffering.
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Affiliation(s)
| | - Francisco Ortega
- ICREA (Catalan Institution of Research and Advanced Studies), Barcelona;, Medical Anthropology Research Center (MARC), Universitat Rovira i Virgili, Tarragona, Spain
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Reis R, Ortega F. Neuroscientific perspectives for a theory of trauma: a critical review of integrative models of biology and culture. CAD SAUDE PUBLICA 2021; 37:e00352820. [PMID: 34495102 DOI: 10.1590/0102-311x00352820] [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] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Accepted: 05/21/2021] [Indexed: 11/22/2022] Open
Abstract
In the last 25 years of the 20th century, psychopathology coded a diverse range of social phenomena under the heading of trauma, featuring the study of psychological trauma as an autonomous area progressively informed by cultural and neurobiological research. In this scenario, we witnessed the emergence of the biocultural paradigm, an epistemological perspective that seeks to elucidate the interactive trajectories by which culture and biology consolidate each other´s effects. This article will address the intersections between the field of psychological trauma and neurosciences, based on the analytical dimensions of expansion of the category of posttraumatic stress disorder (PTSD), the epistemological premises of neurobehavioral studies of stress and fear, and the limitations of the bidirectionality hypothesis advanced by contemporary cultural neurosciences. The elaboration of definitively integrative approaches can assist the development of comprehensive models capable of conceiving knowledges and practices at the level of human experience, avoiding reductionist interpretations that submit complex cultural and subjective experiences alternatingly to the imperatives of the brain and to semiologic codes of pathogenic reasoning.
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Affiliation(s)
- Ramon Reis
- Faculdade de Medicina, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil.,Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brasil
| | - Francisco Ortega
- Institució Catalana de Recerca i Estudis Avançats, Barcelona, Espanya.,Centre de Recerca en Antropologia Mèdica, Universitat Rovira i Virgili, Tarragona, Espanya
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Affiliation(s)
- Dominique Béhague
- Department of Medicine, Health, and Society, Vanderbilt University, Nashville, TN 37235, USA; Department of Global Health and Social Medicine, King's College London, London, UK.
| | - Francisco Ortega
- Catalan Institution for Research and Advanced Studies, Barcelona, Spain; Medical Anthropology Research Center, Universitat Rovira i Virgili, Tarragona, Spain
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Affiliation(s)
- Michelle Pentecost
- Department of Global Health and Social Medicine, King's College London, London, UK; Department of Anthropology, University of Cape Town, Cape Town, South Africa
| | - Vincanne Adams
- Department of Humanities and Social Sciences, University of California San Francisco, San Francisco, CA, USA
| | - Rama Baru
- Centre of Social Medicine and Community Health, Jawaharlal Nehru University, New Delhi, India
| | - Carlo Caduff
- Department of Global Health and Social Medicine, King's College London, London, UK
| | - Jeremy A Greene
- Center for Medical Humanities and Social Medicine, Johns Hopkins University School of Medicine, Baltimore, MD 21210, USA.
| | - Helena Hansen
- Center for Social Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA
| | - David S Jones
- Department of Global Health and Social Medicine, Harvard Medical School and Department of the History of Science, Faculty of Arts and Sciences, Harvard University, Cambridge, MA, USA
| | - Junko Kitanaka
- Department of Human Sciences, Faculty of Letters, Keio University, Tokyo, Japan
| | - Francisco Ortega
- Catalan Institution for Research and Advanced Studies, Barcelona, Spain; Medical Anthropology Research Center, Universitat Rovira i Virgili, Tarragona, Spain
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Comas F, Latorre J, Ortega F, Arnoriaga Rodríguez M, Kern M, Lluch A, Ricart W, Blüher M, Gotor C, Romero LC, Fernández-Real JM, Moreno-Navarrete JM. Activation of Endogenous H 2S Biosynthesis or Supplementation with Exogenous H 2S Enhances Adipose Tissue Adipogenesis and Preserves Adipocyte Physiology in Humans. Antioxid Redox Signal 2021; 35:319-340. [PMID: 33554726 DOI: 10.1089/ars.2020.8206] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Aims: To investigate the impact of exogenous hydrogen sulfide (H2S) and its endogenous biosynthesis on human adipocytes and adipose tissue in the context of obesity and insulin resistance. Results: Experiments in human adipose tissue explants and in isolated preadipocytes demonstrated that exogenous H2S or the activation of endogenous H2S biosynthesis resulted in increased adipogenesis, insulin action, sirtuin deacetylase, and PPARγ transcriptional activity, whereas chemical inhibition and gene knockdown of each enzyme generating H2S (CTH, CBS, MPST) led to altered adipocyte differentiation, cellular senescence, and increased inflammation. In agreement with these experimental data, visceral and subcutaneous adipose tissue expression of H2S-synthesising enzymes was significantly reduced in morbidly obese subjects in association with attenuated adipogenesis and increased markers of adipose tissue inflammation and senescence. Interestingly, weight-loss interventions (including bariatric surgery or diet/exercise) improved the expression of H2S biosynthesis-related genes. In human preadipocytes, the expression of CTH, CBS, and MPST genes and H2S production were dramatically increased during adipocyte differentiation. More importantly, the adipocyte proteome exhibiting persulfidation was characterized, disclosing that different proteins involved in fatty acid and lipid metabolism, the citrate cycle, insulin signaling, several adipokines, and PPAR, experienced the most dramatic persulfidation (85-98%). Innovation: No previous studies investigated the impact of H2S on human adipose tissue. This study suggests that the potentiation of adipose tissue H2S biosynthesis is a possible therapeutic approach to improve adipose tissue dysfunction in patients with obesity and insulin resistance. Conclusion: Altogether, these data supported the relevance of H2S biosynthesis in the modulation of human adipocyte physiology. Antioxid. Redox Signal. 35, 319-340.
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Affiliation(s)
- Ferran Comas
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), CIBEROBN (CB06/03/010) and Instituto de Salud Carlos III (ISCIII), Girona, Spain
| | - Jèssica Latorre
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), CIBEROBN (CB06/03/010) and Instituto de Salud Carlos III (ISCIII), Girona, Spain
| | - Francisco Ortega
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), CIBEROBN (CB06/03/010) and Instituto de Salud Carlos III (ISCIII), Girona, Spain
| | - María Arnoriaga Rodríguez
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), CIBEROBN (CB06/03/010) and Instituto de Salud Carlos III (ISCIII), Girona, Spain
| | - Matthias Kern
- Department of Medicine, University of Leipzig, Leipzig, Germany
| | - Aina Lluch
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), CIBEROBN (CB06/03/010) and Instituto de Salud Carlos III (ISCIII), Girona, Spain
| | - Wifredo Ricart
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), CIBEROBN (CB06/03/010) and Instituto de Salud Carlos III (ISCIII), Girona, Spain
| | - Matthias Blüher
- Department of Medicine, University of Leipzig, Leipzig, Germany
| | - Cecilia Gotor
- Instituto de Bioquímica Vegetal y Fotosíntesis, Consejo Superior de Investigaciones Científicas and Universidad de Sevilla, Seville, Spain
| | - Luis C Romero
- Instituto de Bioquímica Vegetal y Fotosíntesis, Consejo Superior de Investigaciones Científicas and Universidad de Sevilla, Seville, Spain
| | - José Manuel Fernández-Real
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), CIBEROBN (CB06/03/010) and Instituto de Salud Carlos III (ISCIII), Girona, Spain.,Department of Medical Sciences, Universitat de Girona, Girona, Spain
| | - José María Moreno-Navarrete
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), CIBEROBN (CB06/03/010) and Instituto de Salud Carlos III (ISCIII), Girona, Spain.,Department of Medical Sciences, Universitat de Girona, Girona, Spain
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Perrin L, Akanno A, Guzman E, Ortega F, Rubio RG. Pattern Formation upon Evaporation of Sessile Droplets of Polyelectrolyte/Surfactant Mixtures on Silicon Wafers. Int J Mol Sci 2021; 22:ijms22157953. [PMID: 34360724 PMCID: PMC8347912 DOI: 10.3390/ijms22157953] [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] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 07/20/2021] [Accepted: 07/23/2021] [Indexed: 01/26/2023] Open
Abstract
The formation of coffee-ring deposits upon evaporation of sessile droplets containing mixtures of poly(diallyldimethylammonium chloride) (PDADMAC) and two different anionic surfactants were studied. This process is driven by the Marangoni stresses resulting from the formation of surface-active polyelectrolyte–surfactant complexes in solution and the salt arising from the release of counterions. The morphologies of the deposits appear to be dependent on the surfactant concentration, independent of their chemical nature, and consist of a peripheral coffee ring composed of PDADMAC and PDADMAC–surfactant complexes, and a secondary region of dendrite-like structures of pure NaCl at the interior of the residue formed at the end of the evaporation. This is compatible with a hydrodynamic flow associated with the Marangoni stress from the apex of the drop to the three-phase contact line for those cases in which the concentration of the complexes dominates the surface tension, whereas it is reversed when most of the PDADMAC and the complexes have been deposited at the rim and the bulk contains mainly salt.
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Affiliation(s)
- Lionel Perrin
- Departamento de Química Física, Facultad de Ciencias Químicas, Universidad Complutense, Ciudad Universitaria s/n, 28040 Madrid, Spain; (A.A.); (E.G.); (F.O.)
- Institute Lumière Matière, Claude Bernard University Lyon 1, Bâtiment Alfred Kastler—4ème Etage Domaine Scientifique de La Doua, 10 Rue Ada Byron, CEDEX, 69622 Villeurbanne, France
- Correspondence: (L.P.); (R.G.R.); Tel.: +34-3944123 (R.G.R.)
| | - Andrew Akanno
- Departamento de Química Física, Facultad de Ciencias Químicas, Universidad Complutense, Ciudad Universitaria s/n, 28040 Madrid, Spain; (A.A.); (E.G.); (F.O.)
| | - Eduardo Guzman
- Departamento de Química Física, Facultad de Ciencias Químicas, Universidad Complutense, Ciudad Universitaria s/n, 28040 Madrid, Spain; (A.A.); (E.G.); (F.O.)
- Instituto Pluridisciplinar, Universidad Complutense, Paseo Juan XXIII 1, 28040 Madrid, Spain
| | - Francisco Ortega
- Departamento de Química Física, Facultad de Ciencias Químicas, Universidad Complutense, Ciudad Universitaria s/n, 28040 Madrid, Spain; (A.A.); (E.G.); (F.O.)
- Instituto Pluridisciplinar, Universidad Complutense, Paseo Juan XXIII 1, 28040 Madrid, Spain
| | - Ramon G. Rubio
- Departamento de Química Física, Facultad de Ciencias Químicas, Universidad Complutense, Ciudad Universitaria s/n, 28040 Madrid, Spain; (A.A.); (E.G.); (F.O.)
- Instituto Pluridisciplinar, Universidad Complutense, Paseo Juan XXIII 1, 28040 Madrid, Spain
- Correspondence: (L.P.); (R.G.R.); Tel.: +34-3944123 (R.G.R.)
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Puente-Maestú L, Ortega F, Pedro JGD, Rodríguez-Nieto MJ, Gómez-Seco J, Gáldiz B, Ojanguren I, Muñoz X, Blanco I, Burgos F, Rodríguez-Chiaradía DA, Gea J, García-Rio F. Prediction Equations for Maximal Aerobic Capacity on Cycle Ergometer for the Spanish Adult Population. Arch Bronconeumol 2021; 57:471-478. [PMID: 35698953 DOI: 10.1016/j.arbr.2020.09.011] [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: 04/18/2020] [Accepted: 09/13/2020] [Indexed: 06/15/2023]
Abstract
BACKGROUND Frequently used reference values for clinical exercise testing have been derived from non-random samples and some with poorly defined maximal criteria. Our objective was to obtain population based reference values for peak oxygen uptake (V?O2) and work rate (WR) for cardiopulmonary exercise testing in a representative sample of Caucasian Spanish men and women. METHODS 182 men and women, 20-85 years old, were included and exercised on cycle-ergometer to exhaustion. (V?O2) and WR were measured. The equations obtained from this sample were validated in an independent cohort of 69 individuals, randomly sampled form the same population. Then a final equation merging the two cohorts (=251) was produced. RESULTS Height, sex and age resulted predictive of both V?O2 peak and WR. Weight and physical activity added very little to the accuracy to the equations. The formulas V?O2peak=0.017·height?(cm)-0.023·age?(years)+0.864·sex?(female=0/male=1)±179?l?min-1, and peak WR=1.345 · height (cm) - 2.074 · age (years)+76.54 · sex (female=0/male=1)±21.2W were the best compromise between accuracy and parsimony. CONCLUSIONS This study provides new and accurate V?O2 peak and WR rate reference values for individuals of European Spanish descent.
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Affiliation(s)
- Luis Puente-Maestú
- Servicio de Neumología Hospital General Universitario Gregorio Marañón-Facultad de Medicina: Universidad Complutense de Madrid (UCM), Madrid, Spain; Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM), Madrid, Spain.
| | - Francisco Ortega
- Unidad Médico-Quirúrgica de Enfermedades Respiratorias, Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/Universidad de Sevilla, Spain; Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), (Biomedical Research Networking Center on Respiratory Diseases (CIBERES), Instituto de Salud Carlos III, Madrid, Spain
| | - Julia Garcia de Pedro
- Servicio de Neumología Hospital General Universitario Gregorio Marañón-Facultad de Medicina: Universidad Complutense de Madrid (UCM), Madrid, Spain; Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM), Madrid, Spain
| | - María Jesús Rodríguez-Nieto
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), (Biomedical Research Networking Center on Respiratory Diseases (CIBERES), Instituto de Salud Carlos III, Madrid, Spain; Department of Pulmonary Medicine, IIS-Fundación Jiménez Diaz, Autónoma University Madrid, Madrid, Spain
| | | | - Batxi Gáldiz
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), (Biomedical Research Networking Center on Respiratory Diseases (CIBERES), Instituto de Salud Carlos III, Madrid, Spain; Department of Pulmonary Medicine, Cruces Universitary Hospital, Barakaldo, Vizcaya, Spain; Biocruces Bizkaia Health Research Institute, Barakaldo, Vizcaya, Spain
| | - Iñigo Ojanguren
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), (Biomedical Research Networking Center on Respiratory Diseases (CIBERES), Instituto de Salud Carlos III, Madrid, Spain; Servicio de Neumología, Departamento de Medicina, Hospital Universitario Vall d'Hebron, Universidad Autónoma de Barcelona, Cataluña, Spain
| | - Xavier Muñoz
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), (Biomedical Research Networking Center on Respiratory Diseases (CIBERES), Instituto de Salud Carlos III, Madrid, Spain; Servicio de Neumología, Departamento de Medicina, Hospital Universitario Vall d'Hebron, Universidad Autónoma de Barcelona, Cataluña, Spain; Servicio Neumologia Hospital Vall d'Hebron, Barcelona, Spain; Ciber de Enfermedades respiratorias CIBERes, Barcelona, Spain; Departamento de Biología Celular, Fisiología e Inmunología Univertsidad Autónoma de Barcelona, Cataluña, Spain
| | - Isabel Blanco
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), (Biomedical Research Networking Center on Respiratory Diseases (CIBERES), Instituto de Salud Carlos III, Madrid, Spain; Department of Pulmonary Medicine, Hospital Clinic-Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), University of Barcelona, Barcelona, Spain
| | - Felip Burgos
- University of Barcelona Respiratory Diagnostic Center Hospital Clínic, Barcelona, Spain
| | - Diego A Rodríguez-Chiaradía
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), (Biomedical Research Networking Center on Respiratory Diseases (CIBERES), Instituto de Salud Carlos III, Madrid, Spain; Servicio de Neumología, Hospital del Mar-Universitat Pompeu Fabra (UPF), Barcelona, Spain; Institut Hospital del Mar d'Investigacions Mediques (IMIM), CIBERES (ISCIII), Barcelona, Spain
| | - Joaquim Gea
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), (Biomedical Research Networking Center on Respiratory Diseases (CIBERES), Instituto de Salud Carlos III, Madrid, Spain; Servicio de Neumología, Hospital del Mar-Universitat Pompeu Fabra (UPF), Barcelona, Spain; Institut Hospital del Mar d'Investigacions Mediques (IMIM), CIBERES (ISCIII), Barcelona, Spain
| | - Francisco García-Rio
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), (Biomedical Research Networking Center on Respiratory Diseases (CIBERES), Instituto de Salud Carlos III, Madrid, Spain; Servicio de Neumología, Hospital Universitario La Paz-IdiPAZ-Departamento de Medicina, Universidad Autónoma de Madrid, Madrid, Spain
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Guzmán E, Abelenda-Núñez I, Maestro A, Ortega F, Santamaria A, Rubio RG. Particle-laden fluid/fluid interfaces: physico-chemical foundations. J Phys Condens Matter 2021; 33:333001. [PMID: 34102618 DOI: 10.1088/1361-648x/ac0938] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Accepted: 06/08/2021] [Indexed: 06/12/2023]
Abstract
Particle-laden fluid/fluid interfaces are ubiquitous in academia and industry, which has fostered extensive research efforts trying to disentangle the physico-chemical bases underlying the trapping of particles to fluid/fluid interfaces as well as the properties of the obtained layers. The understanding of such aspects is essential for exploiting the ability of particles on the stabilization of fluid/fluid interface for the fabrication of novel interface-dominated devices, ranging from traditional Pickering emulsions to more advanced reconfigurable devices. This review tries to provide a general perspective of the physico-chemical aspects associated with the stabilization of interfaces by colloidal particles, mainly chemical isotropic spherical colloids. Furthermore, some aspects related to the exploitation of particle-laden fluid/fluid interfaces on the stabilization of emulsions and foams will be also highlighted. It is expected that this review can be used for researchers and technologist as an initial approach to the study of particle-laden fluid layers.
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Affiliation(s)
- Eduardo Guzmán
- Departamento de Química Física, Universidad Complutense de Madrid, Madrid, Spain
- Instituto Pluridisciplinar, Universidad Complutense de Madrid, Madrid, Spain
| | - Irene Abelenda-Núñez
- Departamento de Química Física, Universidad Complutense de Madrid, Madrid, Spain
| | | | - Francisco Ortega
- Departamento de Química Física, Universidad Complutense de Madrid, Madrid, Spain
- Instituto Pluridisciplinar, Universidad Complutense de Madrid, Madrid, Spain
| | - Andreas Santamaria
- Instituto Pluridisciplinar, Universidad Complutense de Madrid, Madrid, Spain
- Institut Laue-Langevin, Grenoble, France
| | - Ramón G Rubio
- Departamento de Química Física, Universidad Complutense de Madrid, Madrid, Spain
- Instituto Pluridisciplinar, Universidad Complutense de Madrid, Madrid, Spain
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Martínez-Pedrero F, González-Banciella A, Camino A, Mateos-Maroto A, Ortega F, Rubio RG, Pagonabarraga I, Calero C. Static and Dynamic Self-Assembly of Pearl-Like-Chains of Magnetic Colloids Confined at Fluid Interfaces. Small 2021; 17:e2101188. [PMID: 34018678 DOI: 10.1002/smll.202101188] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 03/31/2021] [Indexed: 06/12/2023]
Abstract
Magnetic colloids adsorbed at a fluid interface are unique model systems to understand self-assembly in confined environments, both in equilibrium and out of equilibrium, with important potential applications. In this work the pearl-chain-like self-assembled structures of superparamagnetic colloids confined to a fluid-fluid interface under static and time-dependent actuations are investigated. On the one hand, it is found that the structures generated by static fields transform as the tilt angle of the field with the interface is increased, from 2D crystals to separated pearl-chains in a process that occurs through a controllable and reversible zip-like thermally activated mechanism. On the other hand, the actuation with precessing fields about the axis perpendicular to the interface induces dynamic self-assembled structures with no counterpart in non-confined systems, generated by the interplay of averaged magnetic interactions, interfacial forces, and hydrodynamics. Finally, how these dynamic structures can be used as remotely activated roller conveyors, able to transport passive colloidal cargos at fluid interfaces and generate parallel viscous flows is shown. The latter can be used in the mixture of adsorbed molecules and the acceleration of surface-chemical reactions, overcoming diffusion limitations.
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Affiliation(s)
- Fernando Martínez-Pedrero
- Departamento de Química-Física, Universidad Complutense de Madrid, Avda. Complutense s/n, Madrid 1, Madrid, 28040, Spain
| | - Andrés González-Banciella
- Departamento de Química-Física, Universidad Complutense de Madrid, Avda. Complutense s/n, Madrid 1, Madrid, 28040, Spain
| | - Alba Camino
- Departamento de Química-Física, Universidad Complutense de Madrid, Avda. Complutense s/n, Madrid 1, Madrid, 28040, Spain
| | - Ana Mateos-Maroto
- Departamento de Química-Física, Universidad Complutense de Madrid, Avda. Complutense s/n, Madrid 1, Madrid, 28040, Spain
| | - Francisco Ortega
- Departamento de Química-Física, Universidad Complutense de Madrid, Avda. Complutense s/n, Madrid 1, Madrid, 28040, Spain
- Inst. Pluridisciplinar, Universidad Complutense de Madrid, Paseo Juan 23,1, Madrid 2, Madrid, 28040, Spain
| | - Ramón G Rubio
- Departamento de Química-Física, Universidad Complutense de Madrid, Avda. Complutense s/n, Madrid 1, Madrid, 28040, Spain
- Inst. Pluridisciplinar, Universidad Complutense de Madrid, Paseo Juan 23,1, Madrid 2, Madrid, 28040, Spain
| | - Ignacio Pagonabarraga
- Departament de Física de la Matèria Condensada, Universitat de Barcelona, Barcelona, 08028, Spain
- Universitat de Barcelona Institute of Complex Systems (UBICS), Universitat de Barcelona, Barcelona, 08028, Spain
- CECAM, Ecole Polytechnique Federale de Lausanne, Batochime, Avenue Forel 2, Lausanne, 1015, Switzerland
| | - Carles Calero
- Departament de Física de la Matèria Condensada, Universitat de Barcelona, Barcelona, 08028, Spain
- Institut de Nanociència i Nanotecnologia, IN2UB, Universitat de Barcelona, Barcelona, 08028, Spain
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Gamlin J, Segata J, Berrio L, Gibbon S, Ortega F. Centring a critical medical anthropology of COVID-19 in global health discourse. BMJ Glob Health 2021; 6:e006132. [PMID: 34127443 PMCID: PMC8206169 DOI: 10.1136/bmjgh-2021-006132] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Accepted: 05/04/2021] [Indexed: 11/23/2022] Open
Affiliation(s)
| | - Jean Segata
- Departamento de Antropologia, UFRGS, Porto Alegre, Rio Grande do Sul, Brazil
| | - Lina Berrio
- Departamento de Antropologia, CIESAS Unidad Regional Pacífico Sur, Oaxaca, Mexico
| | | | - Francisco Ortega
- Departamento de Antropologia, ICREA, Barcelona, Spain
- Medical Anthropology Research Centre (MARC), Universitat Rovira i Virgili, Tarragona, Spain
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Ruano M, Mateos-Maroto A, Ortega F, Ritacco H, Rubio JE, Guzmán E, Rubio RG. Fabrication of Robust Capsules by Sequential Assembly of Polyelectrolytes onto Charged Liposomes. Langmuir 2021; 37:6189-6200. [PMID: 33945690 PMCID: PMC9205565 DOI: 10.1021/acs.langmuir.1c00341] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 04/22/2021] [Indexed: 06/01/2023]
Abstract
This work presents a simple methodology for coating small unilamellar liposomes bearing different degrees of positive charge with polyelectrolyte multilayers using the sequential layer-by-layer deposition method. The liposomes were made of mixtures of 1,2-dioleyl-sn-glycero-3-phosphocoline and dimethyl dioctadecyl ammonium bromide (DODAB) and coated by alternated layers of the sodium salt of poly(4-styrenesulfonate) (PSS) and poly(allylamine) (PAH) as polyanions and polycations, respectively. The results show that the zeta potential of the liposomes was not very sensitive to the mole fraction of DODAB in the membrane, XD, in the range 0.3 ≤ XD ≤ 0.8. We were able to coat the liposomes with up to four polymer bilayers. The growth of the capsule size was followed by dynamic light scattering, and in some cases, by cryo-transmission electron microscopy, with good agreement between both techniques. The thickness of the layers, measured from the hydrodynamic radius of the coated liposome, depends on the polyelectrolyte used, so that the PSS layers adopt a much more packaged conformation than the PAH layers. An interesting finding is that the PSS amount needed to reach the isoelectric point of the capsules increases linearly with the charge density of the bare liposomes, whereas the amount of PAH does not depend on it. As expected, the preparation of the multilayers has to be done in such a way that when the system is close to the isoelectric point, the capsules do not aggregate. For this, we dropped the polyelectrolyte solution quickly, stirred it fast, and used dilute liposome suspensions. The method is very flexible and not limited to liposomes or polyelectrolyte multilayers; also, coatings containing charged nanoparticles can be easily made. Once the liposomes have been coated, lipids can be easily eliminated, giving rise to polyelectrolyte nanocapsules (polyelectrosomes) with potential applications as drug delivery platforms.
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Affiliation(s)
- Marta Ruano
- Departamento
de Química Física, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, Madrid 28040, Spain
| | - Ana Mateos-Maroto
- Departamento
de Química Física, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, Madrid 28040, Spain
| | - Francisco Ortega
- Departamento
de Química Física, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, Madrid 28040, Spain
- Instituto
Pluridisciplinar, Universidad Complutense
de Madrid, Paseo Juan XXIII 1, Madrid 28040, Spain
| | - Hernán Ritacco
- Instituto
de Física del Sur (IFISUR)-Universidad Nacional del Sur, Av. Alem 1253, Bahía Blanca 8000, Argentina
| | - José E.
F. Rubio
- Centro
de Espectroscopía y Correlación, Universidad Complutense de Madrid, Ciudad Universitaria s/n, Madrid 28040, Spain
| | - Eduardo Guzmán
- Departamento
de Química Física, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, Madrid 28040, Spain
- Instituto
Pluridisciplinar, Universidad Complutense
de Madrid, Paseo Juan XXIII 1, Madrid 28040, Spain
| | - Ramon G. Rubio
- Departamento
de Química Física, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, Madrid 28040, Spain
- Instituto
Pluridisciplinar, Universidad Complutense
de Madrid, Paseo Juan XXIII 1, Madrid 28040, Spain
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Cuesta E, Vidal D, Ortega F, Shibata M, Sanz JL. Pelecanimimus (Theropoda: Ornithomimosauria) postcranial anatomy and the evolution of the specialized manus in Ornithomimosaurs and sternum in maniraptoriforms. Zool J Linn Soc 2021. [DOI: 10.1093/zoolinnean/zlab013] [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: 11/12/2022]
Abstract
Abstract
Pelecanimimus polyodon was discovered in 1993 in the Spanish Barremian fossil site of Las Hoyas, being the first ornithomimosaur described from Europe. So far, there has been no detailed description of the holotype of Pelecanimimus, which is composed of the anterior-half of an articulated skeleton. Here we report a new, detailed, revised and more accurate osteological description of its postcranial skeleton, comparing this new data to information about Ornithomimosauria from the last three decades. This osteological and phylogenetic analysis of Pelecanimimus shows several ornithomimosaur synapomorphies and a unique combination of characters that emend its original diagnosis. Pelecanimimus diverged early in Ornithomimosauria and reveals an enlargement trend of the manus, shared with derived ornithomimosaurians, due to a long metacarpal I and elongated distal phalanges. This evolutionary novelty, and other synapomorphies, has led to the definition of a new clade, Macrocheiriformes, including Pelecanimimus and more derived ornithomimosaurs. Pelecanimimus has the only ossified sternal plates among ornithomimosaurs and the first evidence of uncinate processes in a non-maniraptoran theropod, indicating a convergent appearance of these structures in Coelurosauria. The character combination in an early-diverging ornithomimosaur like Pelecanimimus found in this analysis provides a key step in the evolution of the manus and pectoral girdle in Ornithomimosauria.
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Affiliation(s)
- Elena Cuesta
- Institute of Dinosaur Research, Fukui Prefectural University, Kenjojima, Matsuoka, Eiheiji-Cho, 910-119, Fukui, Japan
- Bayerische Staatssammlung für Paläontologie und Geologie, Richard-Wagner-Straße 10, 80333 Munich, Germany
| | - Daniel Vidal
- Grupo de Biología Evolutiva, Facultad de Ciencias, Universidad Nacional de Educación a Distancia, Paseo Senda del Rey 9, 28040 Madrid, Spain
| | - Francisco Ortega
- Grupo de Biología Evolutiva, Facultad de Ciencias, Universidad Nacional de Educación a Distancia, Paseo Senda del Rey 9, 28040 Madrid, Spain
| | - Masateru Shibata
- Institute of Dinosaur Research, Fukui Prefectural University, Kenjojima, Matsuoka, Eiheiji-Cho, 910-119, Fukui, Japan
- Fukui Prefectural Dinosaur Museum, Muroko, Terao, Katsuyama, 911-8601, Fukui, Japan
| | - José L Sanz
- Real Academia de Ciencias Exactas, Fisicas y Naturales, Calle de Valverde, 24, 28004 Madrid, Spain
- Unidad de Paleontología, Departamento de Biología, Universidad Autónoma de Madrid, Calle Darwin, 2, 28049, Madrid, Spain
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