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Correa S, Matamala L, González JP, de la Fuente M, Miranda H, Olivares B, Maureira M, Agüero A, Gómez L, Lee X, Urzúa M, Covarrubias C. Development of novel antimicrobial acrylic denture modified with copper nanoparticles. J Prosthodont Res 2024; 68:156-165. [PMID: 37211413 DOI: 10.2186/jpr.jpr_d_22_00227] [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: 05/23/2023]
Abstract
PURPOSE This study aimed to synthesize heat-cured poly(methyl methacrylate) (PMMA) acrylic formulated with copper nanoparticles (nCu) for producing dentures with antimicrobial properties and ability to prevent denture stomatitis (DS). METHODS nCu/PMMA nanocomposites were prepared through in situ formation of nCu into methyl methacrylate (MMA). The fabricated material was characterized using scanning electron microscopy, spectroscopy (energy-dispersive X-ray, attenuated total reflectance-Fourier-transform infrared, and X-ray photoelectron spectroscopy), X-ray diffraction analysis, and mechanical flexural tests (ISO 20795-1:2008). Antimicrobial activity against Candida albicans and oral bacteria was determined. MTS assay (ISO 10993-5:2009) and copper release experiments were conducted to assess cytotoxicity. In the clinical trial, participants wearing nCu/PMMA (n=25) and PMMA (n=25) dentures were compared; specifically, DS incidence and severity and Candida species proliferation were assessed for 12 months. Data were analyzed using analysis of variance with Tukey's post hoc test (α=0.05). RESULTS nCu/PMMA nanocomposite loaded with 0.045% nCu exhibited the maximum antimicrobial activity against C. albicans and other oral bacteria without producing cytotoxicity in the wearer. nCu/PMMA dentures retained their mechanical and aesthetic properties as well as inhibited the growth of Candida species on both denture surface and patient palate. DS incidence and severity were lower in the nCu/PMMA denture group than in the PMMA denture group. CONCLUSIONS PMMA acrylic produced with copper nanotechnology is antimicrobial, biocompatible, and aesthetic and can reduce DS incidence. Thus, this material may act as a novel preventive alternative for oral infections associated with denture use.
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Affiliation(s)
- Sebastián Correa
- Laboratory of Nanobiomaterials, Institute for Research in Dental Sciences, Faculty of Dentistry, University of Chile, Santiago, Chile
| | - Loreto Matamala
- Department of Conservative Dentistry, Faculty of Dentistry, University of Chile, Santiago, Chile
| | - Juan Pablo González
- Laboratory of Nanobiomaterials, Institute for Research in Dental Sciences, Faculty of Dentistry, University of Chile, Santiago, Chile
| | - Mónica de la Fuente
- Laboratory of Nanobiomaterials, Institute for Research in Dental Sciences, Faculty of Dentistry, University of Chile, Santiago, Chile
| | - Hetiel Miranda
- Laboratory of Nanobiomaterials, Institute for Research in Dental Sciences, Faculty of Dentistry, University of Chile, Santiago, Chile
| | - Bruno Olivares
- Laboratory of Nanobiomaterials, Institute for Research in Dental Sciences, Faculty of Dentistry, University of Chile, Santiago, Chile
| | - Miguel Maureira
- Laboratory of Nanobiomaterials, Institute for Research in Dental Sciences, Faculty of Dentistry, University of Chile, Santiago, Chile
| | - Amaru Agüero
- Laboratory of Nanobiomaterials, Institute for Research in Dental Sciences, Faculty of Dentistry, University of Chile, Santiago, Chile
| | - Leyla Gómez
- Laboratory of Microbiology, Department of Pathology and Oral Microbiology, University of Chile, Santiago, Chile
| | - Ximena Lee
- Public Health, Institute for Research in Dental Sciences, Faculty of Dentistry, University of Chile, Santiago, Chile
| | - Madeleine Urzúa
- Public Health, Institute for Research in Dental Sciences, Faculty of Dentistry, University of Chile, Santiago, Chile
| | - Cristian Covarrubias
- Laboratory of Nanobiomaterials, Institute for Research in Dental Sciences, Faculty of Dentistry, University of Chile, Santiago, Chile
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Sol J, Obis È, Mota-Martorell N, Pradas I, Galo-Licona JD, Martin-Garí M, Fernández-Bernal A, Ortega-Bravo M, Mayneris-Perxachs J, Borrás C, Viña J, de la Fuente M, Mate I, Biarnes C, Pedraza S, Vilanova JC, Brugada R, Ramos R, Serena J, Ramió-Torrentà L, Pineda V, Daunis-I-Estadella P, Thió-Henestrosa S, Barretina J, Garre-Olmo J, Portero-Otin M, Fernández-Real JM, Puig J, Jové M, Pamplona R. Plasma acylcarnitines and gut-derived aromatic amino acids as sex-specific hub metabolites of the human aging metabolome. Aging Cell 2023:e13821. [PMID: 36951231 DOI: 10.1111/acel.13821] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Revised: 02/23/2023] [Accepted: 02/24/2023] [Indexed: 03/24/2023] Open
Abstract
Aging biology entails a cell/tissue deregulated metabolism that affects all levels of biological organization. Therefore, the application of "omic" techniques that are closer to phenotype, such as metabolomics, to the study of the aging process should be a turning point in the definition of cellular processes involved. The main objective of the present study was to describe the changes in plasma metabolome associated with biological aging and the role of sex in the metabolic regulation during aging. A high-throughput untargeted metabolomic analysis was applied in plasma samples to detect hub metabolites and biomarkers of aging incorporating a sex/gender perspective. A cohort of 1030 healthy human adults (45.9% females, and 54.1% males) from 50 to 98 years of age was used. Results were validated using two independent cohorts (1: n = 146, 53% females, 30-100 years old; 2: n = 68, 70% females, 19-107 years old). Metabolites related to lipid and aromatic amino acid (AAA) metabolisms arose as the main metabolic pathways affected by age, with a high influence of sex. Globally, we describe changes in bioenergetic pathways that point to a decrease in mitochondrial β-oxidation and an accumulation of unsaturated fatty acids and acylcarnitines that could be responsible for the increment of oxidative damage and inflammation characteristic of this physiological process. Furthermore, we describe for the first time the importance of gut-derived AAA catabolites in the aging process describing novel biomarkers that could contribute to better understand this physiological process but also age-related diseases.
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Affiliation(s)
- Joaquim Sol
- Department of Experimental Medicine, University of Lleida-Lleida Biomedical Research Institute (UdL-IRBLleida), Lleida, Spain
- Research Support Unit (USR) Lleida, Primary Care Services, Catalan Health Institute (ICS), Lleida, Spain
- Fundació Institut Universitari per a la Recerca en Atenció Primària de Salut Jordi Gol i Gurina (IDIAP JGol), Lleida, Spain
| | - Èlia Obis
- Department of Experimental Medicine, University of Lleida-Lleida Biomedical Research Institute (UdL-IRBLleida), Lleida, Spain
| | - Natalia Mota-Martorell
- Department of Experimental Medicine, University of Lleida-Lleida Biomedical Research Institute (UdL-IRBLleida), Lleida, Spain
| | - Irene Pradas
- Department of Experimental Medicine, University of Lleida-Lleida Biomedical Research Institute (UdL-IRBLleida), Lleida, Spain
| | - Jose Daniel Galo-Licona
- Department of Experimental Medicine, University of Lleida-Lleida Biomedical Research Institute (UdL-IRBLleida), Lleida, Spain
| | - Meritxell Martin-Garí
- Department of Experimental Medicine, University of Lleida-Lleida Biomedical Research Institute (UdL-IRBLleida), Lleida, Spain
| | - Anna Fernández-Bernal
- Department of Experimental Medicine, University of Lleida-Lleida Biomedical Research Institute (UdL-IRBLleida), Lleida, Spain
| | - Marta Ortega-Bravo
- Research Support Unit (USR) Lleida, Primary Care Services, Catalan Health Institute (ICS), Lleida, Spain
- Fundació Institut Universitari per a la Recerca en Atenció Primària de Salut Jordi Gol i Gurina (IDIAP JGol), Lleida, Spain
| | - Jordi Mayneris-Perxachs
- Girona Biomedical Research Institute (IDIBGI), Hospital Universitari de Girona Dr Josep Trueta, Girona, Spain
- Department of Nursing, University of Girona, Girona, Spain
- Department of Diabetes, Endocrinology and Nutrition, IDIBGI, Hospital Universitari de Girona Dr Josep Trueta, Girona, Spain
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), Madrid, Spain
| | - Consuelo Borrás
- Freshage Research Group, Department of Physiology, Faculty of Medicine, University of Valencia, Centro de Investigación Biomédica en Red Fragilidad y Envejecimiento Saludable-Instituto de Salud Carlos III (CIBERFES-ISCIII), INCLIVA, Valencia, Spain
| | - José Viña
- Freshage Research Group, Department of Physiology, Faculty of Medicine, University of Valencia, Centro de Investigación Biomédica en Red Fragilidad y Envejecimiento Saludable-Instituto de Salud Carlos III (CIBERFES-ISCIII), INCLIVA, Valencia, Spain
| | - Mónica de la Fuente
- Department of Genetics, Physiology and Microbiology, Facultad de Ciencias Biológicas, Universidad Complutense de Madrid, Madrid, Spain
| | - Ianire Mate
- Department of Genetics, Physiology and Microbiology, Facultad de Ciencias Biológicas, Universidad Complutense de Madrid, Madrid, Spain
| | - Carles Biarnes
- Girona Biomedical Research Institute (IDIBGI), Hospital Universitari de Girona Dr Josep Trueta, Girona, Spain
- Department of Radiology (IDI), Hospital Universitari de Girona Dr Josep Trueta, Girona, Spain
| | - Salvador Pedraza
- Girona Biomedical Research Institute (IDIBGI), Hospital Universitari de Girona Dr Josep Trueta, Girona, Spain
| | - Joan C Vilanova
- Girona Biomedical Research Institute (IDIBGI), Hospital Universitari de Girona Dr Josep Trueta, Girona, Spain
- Department of Radiology (IDI), Hospital Universitari de Girona Dr Josep Trueta, Girona, Spain
| | - Ramon Brugada
- Girona Biomedical Research Institute (IDIBGI), Hospital Universitari de Girona Dr Josep Trueta, Girona, Spain
- Department of Nursing, University of Girona, Girona, Spain
- Cardiovascular Genetics Center, CIBER-CV, IDIBGI, Girona, Spain
| | - Rafel Ramos
- Girona Biomedical Research Institute (IDIBGI), Hospital Universitari de Girona Dr Josep Trueta, Girona, Spain
- Department of Nursing, University of Girona, Girona, Spain
- Vascular Health Research Group of Girona (ISV-Girona), Institut Universitari d'Investigació en Atenció Primària Jordi Gol (IDIAP Jordi Gol), Girona, Spain
- Primary Care Services, Catalan Institute of Health (ICS), Girona, Spain
| | - Joaquin Serena
- Girona Biomedical Research Institute (IDIBGI), Hospital Universitari de Girona Dr Josep Trueta, Girona, Spain
- Department of Nursing, University of Girona, Girona, Spain
- Department of Neurology, Hospital Universitari de Girona Dr Josep Trueta, Girona, Spain
| | - Lluís Ramió-Torrentà
- Girona Biomedical Research Institute (IDIBGI), Hospital Universitari de Girona Dr Josep Trueta, Girona, Spain
- Department of Nursing, University of Girona, Girona, Spain
- Department of Neurology, Hospital Universitari de Girona Dr Josep Trueta, Girona, Spain
| | - Víctor Pineda
- Girona Biomedical Research Institute (IDIBGI), Hospital Universitari de Girona Dr Josep Trueta, Girona, Spain
- Department of Radiology (IDI), Hospital Universitari de Girona Dr Josep Trueta, Girona, Spain
| | - Pepus Daunis-I-Estadella
- Department of Computer Science, Applied Mathematics and Statistics, University of Girona, Girona, Spain
| | - Santiago Thió-Henestrosa
- Department of Computer Science, Applied Mathematics and Statistics, University of Girona, Girona, Spain
| | - Jordi Barretina
- Institut Investigació Germans Trias i Pujol (IGTP), Comparative Medicine and Bioimage of Catalonia, Barcelona, Spain
| | - Josep Garre-Olmo
- Girona Biomedical Research Institute (IDIBGI), Hospital Universitari de Girona Dr Josep Trueta, Girona, Spain
- Department of Nursing, University of Girona, Girona, Spain
- Vascular Health Research Group of Girona (ISV-Girona), Institut Universitari d'Investigació en Atenció Primària Jordi Gol (IDIAP Jordi Gol), Girona, Spain
| | - Manuel Portero-Otin
- Department of Experimental Medicine, University of Lleida-Lleida Biomedical Research Institute (UdL-IRBLleida), Lleida, Spain
| | - José Manuel Fernández-Real
- Girona Biomedical Research Institute (IDIBGI), Hospital Universitari de Girona Dr Josep Trueta, Girona, Spain
- Department of Nursing, University of Girona, Girona, Spain
- Department of Diabetes, Endocrinology and Nutrition, IDIBGI, Hospital Universitari de Girona Dr Josep Trueta, Girona, Spain
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), Madrid, Spain
| | - Josep Puig
- Girona Biomedical Research Institute (IDIBGI), Hospital Universitari de Girona Dr Josep Trueta, Girona, Spain
- Department of Radiology (IDI), Hospital Universitari de Girona Dr Josep Trueta, Girona, Spain
| | - Mariona Jové
- Department of Experimental Medicine, University of Lleida-Lleida Biomedical Research Institute (UdL-IRBLleida), Lleida, Spain
| | - Reinald Pamplona
- Department of Experimental Medicine, University of Lleida-Lleida Biomedical Research Institute (UdL-IRBLleida), Lleida, Spain
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González-Bermúdez B, Kobayashi H, Navarrete Á, Nyblad C, González-Sánchez M, de la Fuente M, Fuentes G, Guinea GV, García C, Plaza GR. Single-cell biophysical study reveals deformability and internal ordering relationship in T cells. Soft Matter 2020; 16:5669-5678. [PMID: 32519732 DOI: 10.1039/d0sm00648c] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Deformability and internal ordering are key features related to cell function, particularly critical for cells that routinely undergo large deformations, like T cells during extravasation and migration. In the measurement of cell deformability, a considerable variability is typically obtained, masking the identification of possible interrelationships between deformability, internal ordering and cell function. We report the development of a single-cell methodology that combines measurements of living-cell deformability, using micropipette aspiration, and three-dimensional confocal analysis of the nucleus and cytoskeleton. We show that this single-cell approach can serve as a powerful tool to identify appropriate parameters that characterize deformability within a population of cells, not readably discernable in population-averaged data. By applying this single-cell methodology to mouse CD4+ T cells, our results demonstrate that the relative size of the nucleus, better than other geometrical or cytoskeletal features, effectively determines the overall deformability of the cells within the population.
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Affiliation(s)
- Blanca González-Bermúdez
- Center for Biomedical Technology, Universidad Politécnica de Madrid, E-28223 Pozuelo de Alarcón, Spain. and Departamento de Ciencia de Materiales, ETSI de Caminos, Canales y Puertos, Universidad Politécnica de Madrid, E-28040 Madrid, Spain
| | - Hikaru Kobayashi
- Departamento de Genética, Fisiología y Microbiología, Facultad de Ciencias Biológicas, Universidad Complutense de Madrid, E-28040 Madrid, Spain
| | - Álvaro Navarrete
- Departamento de Ingeniería Mecánica, Universidad de Santiago de Chile, Chile
| | - César Nyblad
- Center for Biomedical Technology, Universidad Politécnica de Madrid, E-28223 Pozuelo de Alarcón, Spain. and Departamento de Ciencia de Materiales, ETSI de Caminos, Canales y Puertos, Universidad Politécnica de Madrid, E-28040 Madrid, Spain
| | - Mónica González-Sánchez
- Departamento de Genética, Fisiología y Microbiología, Facultad de Ciencias Biológicas, Universidad Complutense de Madrid, E-28040 Madrid, Spain
| | - Mónica de la Fuente
- Departamento de Genética, Fisiología y Microbiología, Facultad de Ciencias Biológicas, Universidad Complutense de Madrid, E-28040 Madrid, Spain
| | - Gonzalo Fuentes
- Departamento de Ciencia de Materiales, ETSI de Caminos, Canales y Puertos, Universidad Politécnica de Madrid, E-28040 Madrid, Spain and Instituto de Sistemas Optoelectrónicos y Microtecnología, Universidad Politécnica de Madrid, E-28040 Madrid, Spain
| | - Gustavo V Guinea
- Center for Biomedical Technology, Universidad Politécnica de Madrid, E-28223 Pozuelo de Alarcón, Spain. and Departamento de Ciencia de Materiales, ETSI de Caminos, Canales y Puertos, Universidad Politécnica de Madrid, E-28040 Madrid, Spain and Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Madrid, Spain
| | - Claudio García
- Departamento de Ingeniería Mecánica, Universidad de Santiago de Chile, Chile
| | - Gustavo R Plaza
- Center for Biomedical Technology, Universidad Politécnica de Madrid, E-28223 Pozuelo de Alarcón, Spain. and Departamento de Ciencia de Materiales, ETSI de Caminos, Canales y Puertos, Universidad Politécnica de Madrid, E-28040 Madrid, Spain
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Bermejo-Pareja F, Del Ser T, Valentí M, de la Fuente M, Bartolome F, Carro E. Salivary lactoferrin as biomarker for Alzheimer's disease: Brain-immunity interactions. Alzheimers Dement 2020; 16:1196-1204. [PMID: 32543760 PMCID: PMC7984071 DOI: 10.1002/alz.12107] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Accepted: 03/09/2020] [Indexed: 12/12/2022]
Abstract
Objective We aim to explain why salivary lactoferrin (Lf) levels are reduced in patients suffering mild cognitive impairment (MCI) and sporadic Alzheimer's disease (sAD).1 We also will discuss if such Lf decrease could be due to a downregulation of the sAD associated systemic immunity. Background Several non‐neurological alterations have been described in sAD, mainly in skin, blood cell, and immunological capacities. We reviewed briefly the main pathophysiological theories of sAD (amyloid cascade, tau, unfolder protein tau, and amyloid deposits) emphasizing the most brain based hypotheses such as the updated tau‐related neuron skeletal hypothesis; we also comment on the systemic theories that emphasize the fetal origin of the complex disorders that include the low inflammatory and immunity theories of sAD. New/updated hypothesis Lf has important anti‐infectious and immunomodulatory roles in health and disease. We present the hypothesis that the reduced levels of saliva Lf could be an effect of immunological disturbances associated to sAD. Under this scenario, two alternative pathways are possible: first, whether sAD could be a systemic disorder (or disorders) related to early immunological and low inflammatory alterations; second, if systemic immunity alterations of sAD manifestations could be downstream of early sAD brain affectations. Major challenges for the hypothesis The major challenge of the Lf as early sAD biomarker would be its validation in other clinical and population‐based studies. It is possible the decreased salivary Lf in early sAD could be related to immunological modulation actions, but other different unknown mechanisms could be the origin of such reduction. Linkage to other major theories This hypothesis is in agreement with two physiopathological explanations of the sAD as a downstream process determined by the early lesions of the hypothalamus and autonomic vegetative system (neurodegeneration), or as a consequence of low neuroinflammation and dysimmunity since the early life aggravated in the elderly (immunosenescence).
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Affiliation(s)
- Félix Bermejo-Pareja
- Department of Medicine, Complutense University, Madrid, Spain.,Neurodegenerative Disorders Group, Instituto de Investigación Hospital 12 de Octubre (imas12), Madrid, Spain
| | - Teodoro Del Ser
- Alzheimer's Disease Investigation Research Unit, CIEN Foundation, Carlos III Institute of Health, Queen Sofia Foundation, Alzheimer Research Centre, Madrid, Spain
| | - Meritxell Valentí
- Alzheimer's Disease Investigation Research Unit, CIEN Foundation, Carlos III Institute of Health, Queen Sofia Foundation, Alzheimer Research Centre, Madrid, Spain
| | - Mónica de la Fuente
- Department of Genetics, Physiology and Microbiology (Unit of Animal Physiology), Faculty of Biology, Complutense University of Madrid, Madrid, Spain.,Aging, Neuroimmunology and Nutrition Group, Instituto de Investigación Hospital 12 de Octubre (imas12), Madrid, Spain
| | - Fernando Bartolome
- Neurodegenerative Disorders Group, Instituto de Investigación Hospital 12 de Octubre (imas12), Madrid, Spain.,Networking Biomedical Research Center on Neurodegenerative Diseases (CIBERNED), Madrid, Spain
| | - Eva Carro
- Neurodegenerative Disorders Group, Instituto de Investigación Hospital 12 de Octubre (imas12), Madrid, Spain.,Networking Biomedical Research Center on Neurodegenerative Diseases (CIBERNED), Madrid, Spain
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Garrido A, Cruces J, Ceprián N, Vara E, de la Fuente M. Oxidative-Inflammatory Stress in Immune Cells from Adult Mice with Premature Aging. Int J Mol Sci 2019; 20:ijms20030769. [PMID: 30759732 PMCID: PMC6387005 DOI: 10.3390/ijms20030769] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Revised: 01/29/2019] [Accepted: 02/08/2019] [Indexed: 11/16/2022] Open
Abstract
Oxidative and inflammatory stresses are closely related processes, which contribute to age-associated impairments that affect the regulatory systems such as the immune system and its immunosenescence. Therefore, the aim of this work was to confirm whether an oxidative/inflammatory stress occurs in immune cells from adult mice with premature aging, similar to that shown in leukocytes from chronologically old animals, and if this results in immunosenescence. Several oxidants/antioxidants and inflammatory/anti-inflammatory cytokines were analyzed in peritoneal leukocytes from adult female CD1 mice in two models of premature aging—(a) prematurely aging mice (PAM) and (b) mice with the deletion of a single allele (hemi-zygotic: HZ) of the tyrosine hydroxylase (th) gene (TH-HZ), together with cells from chronologically old animals. Several immune function parameters were also studied in peritoneal phagocytes and lymphocytes. The same oxidants and antioxidants were also analyzed in spleen and thymus leukocytes. The results showed that the immune cells of PAM and TH-HZ mice presented lower values of antioxidant defenses and higher values of oxidants/pro-inflammatory cytokines than cells from corresponding controls, and similar to those in cells from old animals. Moreover, premature immunosenescence in peritoneal leukocytes from both PAM and TH-HZ mice was also observed. In conclusion, adult PAM and TH-HZ mice showed oxidative stress in their immune cells, which would explain their immunosenescence.
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Affiliation(s)
- Antonio Garrido
- Department of Genetics, Physiology and Microbiology (Animal Physiology Unit), School of Biology, Complutense University of Madrid (UCM), 28040 Madrid, Spain.
- Institute of Investigation of Hospital 12 de Octubre (i+12), 28041 Madrid, Spain.
| | - Julia Cruces
- Department of Genetics, Physiology and Microbiology (Animal Physiology Unit), School of Biology, Complutense University of Madrid (UCM), 28040 Madrid, Spain.
- Institute of Investigation of Hospital 12 de Octubre (i+12), 28041 Madrid, Spain.
| | - Noemí Ceprián
- Department of Genetics, Physiology and Microbiology (Animal Physiology Unit), School of Biology, Complutense University of Madrid (UCM), 28040 Madrid, Spain.
- Institute of Investigation of Hospital 12 de Octubre (i+12), 28041 Madrid, Spain.
| | - Elena Vara
- Department of Biochemistry and Molecular Biology III, School of Medicine, Complutense University of Madrid (UCM), 28040 Madrid, Spain.
| | - Mónica de la Fuente
- Department of Genetics, Physiology and Microbiology (Animal Physiology Unit), School of Biology, Complutense University of Madrid (UCM), 28040 Madrid, Spain.
- Institute of Investigation of Hospital 12 de Octubre (i+12), 28041 Madrid, Spain.
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Rancán L, Paredes SD, García I, Muñoz P, García C, López de Hontanar G, de la Fuente M, Vara E, Tresguerres JAF. Protective effect of xanthohumol against age-related brain damage. J Nutr Biochem 2017; 49:133-140. [PMID: 28950154 DOI: 10.1016/j.jnutbio.2017.07.011] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [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: 11/03/2016] [Revised: 05/09/2017] [Accepted: 07/19/2017] [Indexed: 12/14/2022]
Abstract
It has been recently shown that xanthohumol, a flavonoid present in hops, possesses antioxidant, anti-inflammatory and chemopreventive properties. However, its role in the aging brain has not been addressed so far. Therefore, this study aimed to investigate the possible neuroprotective activity of xanthohumol against age-related inflammatory and apoptotic brain damage in male senescence-accelerated prone mice (SAMP8). Animals were divided into 4 groups: Untreated young mice, untreated old mice and old mice treated either with 1 mg kg-1 day-1 or 5 mg kg-1 day-1 xanthohumol. Young and old senescence accelerated resistant mice (SAMR1) were used as controls. After 30 days of treatment, animals were sacrificed and their brains were collected and immediately frozen in liquid nitrogen. mRNA (GFAP, TNF-α, IL-1β, AIF, BAD, BAX, XIAP, NAIP and Bcl-2) and protein (GFAP, TNF-α, IL-1β, AIF, BAD, BAX, BDNF, synaptophysin and synapsin) expressions were measured by RT-PCR and Western blotting, respectively. Significant increased levels of pro-inflammatory (TNF-α, IL-1β) and pro-apoptotic (AIF, BAD, BAX) markers were observed in both SAMP8 and SAMR1 old mice compared to young animals (P<.05) and also in SAMP8 untreated old mice compared to SAMR1 (P<.05). These alterations were significantly less evident in animals treated with both doses of xanthohumol (P<.05). Also, a reduced expression of synaptic markers was observed in old mice compared to young ones (P<.05) but it significantly recovered with 5 mg kg-1 day-1 xanthohumol treatment (P<.05). In conclusion, xanthohumol treatment modulated the inflammation and apoptosis of aged brains, exerting a protective effect on damage induced by aging.
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Affiliation(s)
- Lisa Rancán
- Department of Biochemistry and Molecular Biology III, School of Medicine, Complutense University of Madrid, Madrid, Spain.
| | - Sergio D Paredes
- Department of Physiology, School of Medicine, Complutense University of Madrid, Madrid, Spain.
| | - Irene García
- Department of Biochemistry and Molecular Biology III, School of Medicine, Complutense University of Madrid, Madrid, Spain.
| | - Pedro Muñoz
- Department of Biochemistry and Molecular Biology III, School of Medicine, Complutense University of Madrid, Madrid, Spain.
| | - Cruz García
- Department of Biochemistry and Molecular Biology III, School of Medicine, Complutense University of Madrid, Madrid, Spain.
| | - Guzmán López de Hontanar
- Department of Biochemistry and Molecular Biology III, School of Medicine, Complutense University of Madrid, Madrid, Spain.
| | - Mónica de la Fuente
- Department of Physiology (Animal Physiology II), School of Biology, Complutense University of Madrid, Madrid, Spain.
| | - Elena Vara
- Department of Biochemistry and Molecular Biology III, School of Medicine, Complutense University of Madrid, Madrid, Spain.
| | - Jesús A F Tresguerres
- Department of Physiology, School of Medicine, Complutense University of Madrid, Madrid, Spain.
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Garrido A, Cruces J, Iriarte I, Hernández-Sánchez C, de Pablo F, de la Fuente M. [Premature immunosenescence in catecholamines syntesis deficient mice. Effect of social environment]. Rev Esp Geriatr Gerontol 2016; 52:20-26. [PMID: 26952652 DOI: 10.1016/j.regg.2016.01.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2015] [Revised: 12/16/2015] [Accepted: 01/07/2016] [Indexed: 10/22/2022]
Abstract
INTRODUCTION Healthy state depends on the appropriate function of the homeostatic systems (nervous, endocrine and immune systems) and the correct communication between them. The functional and redox state of the immune system is an excellent marker of health, and animals with premature immunosenescence show a shorter lifespan. Since catecholamines modulate the function of immune cells, the alteration in their synthesis could provoke immunosenescence. The social environment could be a strategy for modulating this immunosenescence. AIM To determine if an haploinsufficiency of tyrosine hydroxylase (TH), the limiting enzyme of synthesis of catecholamines, may produce a premature immunosenescence and if this immunosenescence could be modulated by the social environment. MATERIALS AND METHODS Adult (9±1 months) male ICR-CD1 mice with deletion of a single allele (hemi-zygotic: HZ) of the tyrosine hydroxylase enzyme (TH-HZ) and wild-type (WT) mice were used. Animals were housed in four subgroups: WT>50% (in the cage, the proportion of WT mice was higher than 50% in relation to TH-HZ), WT<50%, TH-HZ<50% and TH-HZ>50%. Peritoneal leukocytes were collected and phagocytosis, chemotaxis and proliferation of lymphocytes in the presence of lipopolysaccharide were analyzed. Glutathione reductase and glutathione peroxidase activities as well as oxidized/reduced glutathione ratio were studied. RESULTS TH-HZ>50% mice showed a deteriorated function and redox state in leukocytes respect to WT>50% and similar to old mice. However, TH-HZ<50% animals had similar values to those found in WT<50% mice. CONCLUSION The haploinsufficiency of TH generates premature immunosenescence, which appears to be compensated by living together with an appropriate number of WT animals.
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Affiliation(s)
- Antonio Garrido
- Departamento de Fisiología Animal, Facultad de Biología, Universidad Complutense de Madrid, Madrid, España; Instituto de Investigación Hospital 12 de Octubre (imas12), Madrid, España
| | - Julia Cruces
- Departamento de Fisiología Animal, Facultad de Biología, Universidad Complutense de Madrid, Madrid, España; Instituto de Investigación Hospital 12 de Octubre (imas12), Madrid, España
| | - Idoia Iriarte
- Departamento de Fisiología Animal, Facultad de Biología, Universidad Complutense de Madrid, Madrid, España
| | - Catalina Hernández-Sánchez
- Departamento de Medicina Celular y Molecular, Centro de Investigaciones Biológicas (CSIC), Madrid, España; CIBERDEM (Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas), Instituto de Salud Carlos III, Ministerio de Economía y Competitividad, España
| | - Flora de Pablo
- Departamento de Medicina Celular y Molecular, Centro de Investigaciones Biológicas (CSIC), Madrid, España; CIBERDEM (Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas), Instituto de Salud Carlos III, Ministerio de Economía y Competitividad, España
| | - Mónica de la Fuente
- Departamento de Fisiología Animal, Facultad de Biología, Universidad Complutense de Madrid, Madrid, España; Instituto de Investigación Hospital 12 de Octubre (imas12), Madrid, España.
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de Castro NM, Yaqoob P, de la Fuente M, Baeza I, Claus SP. Premature Impairment of Methylation Pathway and Cardiac Metabolic Dysfunction in fa/fa Obese Zucker Rats. J Proteome Res 2013; 12:1935-45. [DOI: 10.1021/pr400025y] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Nuria M. de Castro
- Department of Animal Physiology,
Faculty of Biology, Complutense University of Madrid, 28040 Madrid, Spain
| | - Parveen Yaqoob
- Department of Food and Nutritional
Sciences, The University of Reading, Whiteknights
campus, P.O. Box 226, Reading RG6 6AP, U.K
| | - Mónica de la Fuente
- Department of Animal Physiology,
Faculty of Biology, Complutense University of Madrid, 28040 Madrid, Spain
| | - Isabel Baeza
- Department of Animal Physiology,
Faculty of Biology, Complutense University of Madrid, 28040 Madrid, Spain
| | - Sandrine P. Claus
- Department of Food and Nutritional
Sciences, The University of Reading, Whiteknights
campus, P.O. Box 226, Reading RG6 6AP, U.K
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9
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Ferrando-Martínez S, de la Fuente M, Guerrero JM, Leal M, Muñoz-Fernández MÁ. [Impact of thymic function in age-related immune deterioration]. Rev Esp Geriatr Gerontol 2013; 48:232-7. [PMID: 23453427 DOI: 10.1016/j.regg.2012.11.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2012] [Revised: 11/14/2012] [Accepted: 11/16/2012] [Indexed: 01/09/2023]
Abstract
Age-related biological deterioration also includes immune system deterioration and, in consequence, a rise in the incidence and prevalence of infections and cancers, as well as low responses to vaccination strategies. Out of all immune cell subsets, T-lymphocytes seem to be involved in most of the age-related defects. Since T-lymphocytes mature during their passage through the thymus, and the thymus shows an age-related process of atrophy, thymic regression has been proposed as the triggering event of this immune deterioration in elderly people. Historically, it has been accepted that the young thymus sets the T-lymphocyte repertoire during the childhood, whereupon atrophy begins until the elderly thymus is a non-functional evolutionary trace. However, a rising body of knowledge points toward the thymus functioning during adulthood. In the elderly, higher thymic function is associated with a younger immune system, while thymic function failure is associated with all-cause mortality. Therefore, any new strategy focused on the improvement of the elderly quality of life, especially those trying to influence the immune system, should take into account, together with peripheral homeostasis, thymus function as a key element in slowing down age-related decline.
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Affiliation(s)
- Sara Ferrando-Martínez
- Laboratorio de Inmuno-Biología Molecular, Hospital General Universitario Gregorio Marañón (HGUGM), Madrid, España; Laboratorio de Inmunovirología, Unidad Clínica de Enfermedades Infecciosas, Microbiología y Medicina Preventiva, Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Sevilla, España.
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10
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Portal-Núñez S, Lozano D, de la Fuente M, Esbrit P. [Pathophysiology of aging bone]. Rev Esp Geriatr Gerontol 2012; 47:125-131. [PMID: 22172573 DOI: 10.1016/j.regg.2011.09.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2011] [Revised: 08/25/2011] [Accepted: 09/01/2011] [Indexed: 05/31/2023]
Abstract
Deterioration of organ and systems function are the principal signs of aging. Aging is also believed to be a major factor in the loss of bone mass and quality, which in turn leads to an increase in the risk of fractures. Several factors seem to contribute to this scenario, with metabolic changes related to aging in the bone tissue itself being among them. Most of the current knowledge on the mechanisms associated with osteopenia/osteoporosis during aging has been generated from research in animal models (mainly rats and mice) and cell cultures derived from subjects of different ages. In this work, we have reviewed and summarised these studies, which have begun to establish the physiological and molecular basis of the bone alterations related to aging.
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Affiliation(s)
- Sergio Portal-Núñez
- Laboratorio de Metabolismo Mineral y Óseo, Instituto de Investigación Sanitaria-Fundación Jiménez Díaz, Madrid, España.
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Alonso-Fernández P, Puerto M, Maté I, Ribera JM, de la Fuente M. Neutrophils of Centenarians Show Function Levels Similar to Those of Young Adults. J Am Geriatr Soc 2008; 56:2244-51. [PMID: 19093924 DOI: 10.1111/j.1532-5415.2008.02018.x] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Abstract
Ageing is a process involving morphological and physiological modifications that gradually appear with time and lead to death. Given the heterogeneous nature of the process among individuals and among the different organs, tissues, and systems in the same individual, the concept of <<biological age>> has been developed. The search for parameters that enable us to evaluate biological age--and therefore longevity--and the analysis of the efficacy of strategies to retard the ageing process are the objectives of gerontology. At present, one of the most important theories of ageing is the <<oxidative-inflammatory>> theory. Given that immune cell function is an excellent marker of health, we review the concepts that enable different functional and oxidative stress parameters in immune cells to be identified as markers of biological age and longevity. None of these parameters is universally accepted as a biomarker of ageing, although they are becoming increasingly important.
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Baeza I, de Castro NM, Alvarado C, Alvarez P, Arranz L, Bayón J, de la Fuente M. Improvement of immune cell functions in aged mice treated for five weeks with soybean isoflavones. Ann N Y Acad Sci 2007; 1100:497-504. [PMID: 17460214 DOI: 10.1196/annals.1395.054] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Aging is associated with an impaired immune system as well as with a decline of several hormones, such as estrogens. Dietary phytoestrogens have been proposed as an alternative to hormone replacement therapy. The beneficial action of soybean compounds is probably due to isoflavones, whose role as immunomodulators has been investigated with increasing interest. The aim of the present work was to study whether a 5-week administration of a diet enriched in soybean isoflavones and green tea could influence the immune function of mice that were sham-operated or ovariectomized. Natural killer activity (NK) and lymphoproliferation in response to the mitogens concanavaline A (Con A) and lipopolysaccharide (LPS), were studied in peritoneal leukocytes. Both treatments with soybean or green tea plus soybean were highly effective in improving these immune parameters with respect to control groups. Since the immune system is a marker of health and a predictor of longevity, an adequate treatment with isoflavones could be useful in slowing down the effects of the aging process through an improvement in the two relevant immune functions studied.
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Affiliation(s)
- Isabel Baeza
- Department of Animal Physiology, Faculty of Biological Sciences, Complutense University, 28040 Madrid, Spain.
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Zambrana C, Marco EM, Arranz L, de Castro NM, Viveros MP, de la Fuente M. Influence of Aging and Enriched Environment on Motor Activity and Emotional Responses in Mice. Ann N Y Acad Sci 2007; 1100:543-52. [PMID: 17460220 DOI: 10.1196/annals.1395.060] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
We have evaluated different behavioral parameters in ICR (CD1) female mice of three different ages (38-39 weeks: mature; 62 weeks: late mature; 90 weeks: old), and addressed the effects of an enriched housing condition. We employed the following battery of tests: Holeboard, open field, elevated plus-maze (EPM), and forced swimming test (FST). The results suggest that aging process differentially affects diverse aspects of behavior. With respect to motor activity, late mature animals were more affected by enrichment, whereas old animals appeared to be more affected when emotional responses were considered. We propose that the diminished percentage of time in the open arms of the EPM showed by enriched mice may be indicative of decreased novelty seeking, whereas their decreased climbing behavior may indicate a reduced escape-related behavior in an inescapable situation.
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Affiliation(s)
- Claustro Zambrana
- Departamento de Fisiología (Fisiología Animal II), Facultad de Biología, Universidad Complutense, Ciudad Universitaria, C/Jose Antonio Novais 2, 28040 Madrid, Spain
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