1
|
Elosegi P, Mei N, Soto D. Characterising the role of awareness in ensemble perception. J Exp Psychol Hum Percept Perform 2024:2024-78006-001. [PMID: 38661646 DOI: 10.1037/xhp0001201] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
Ensemble representations are efficient codes that the brain generates effortlessly even under noisy conditions. However, the role of visual awareness for computing ensemble representations remains unclear. We present two psychophysical experiments (N = 15 × 2) using a bias-free paradigm to investigate the contribution of conscious and unconscious processing to ensemble perception. Here, we show that ensemble perception can unfold without awareness of the relevant features that define the ensemble. Computational modeling of the type-1 and type-2 drift-rates further suggest that awareness lags well behind the categorization processes that support ensemble perception. Additional evidence indicates that the dissociation between type-1 from type-2 sensitivity, was not driven by the type-2 inefficiency or a systematic disadvantage in type-2 decision making. The present study demonstrates the utility of robust measures for studying the role of visual consciousness and metacognition in stimuli and tasks of increasing complexity, crucially, without underestimating the contribution of unconscious processing in an otherwise visible stimulus. (PsycInfo Database Record (c) 2024 APA, all rights reserved).
Collapse
Affiliation(s)
| | - Ning Mei
- Basque Center on Cognition, Brain and Language
| | - David Soto
- Basque Center on Cognition, Brain and Language
| |
Collapse
|
2
|
Singh L, Barr R, Quinn PC, Kalashnikova M, Rocha-Hidalgo J, Freda K, D'Souza D. Effects of environmental diversity on exploration and learning: The case of bilingualism. J Exp Psychol Gen 2024:2024-76137-001. [PMID: 38647456 DOI: 10.1037/xge0001562] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
Bilingual environments provide a commonplace example of increased complexity and uncertainty. Learning multiple languages entails mastery of a larger and more variable range of sounds, words, syntactic structures, pragmatic conventions, and more complex mapping of linguistic information to objects in the world. Recent research suggests that bilingual learners demonstrate fundamental variation in how they explore and learn from their environment, which may derive from this increased complexity. In particular, the increased complexity and variability of bilingual environments may broaden the focus of learners' attention, laying a different attentional foundation for learning. In this review, we introduce a novel framework, with accompanying empirical evidence, for understanding how early learners may adapt to a more complex environment, drawing on bilingualism as an example. Three adaptations, each relevant to the demands of abstracting structure from a complex environment, are introduced. Each adaptation is discussed in the context of empirical evidence attesting to shifts in basic psychological processes in bilingual learners. This evidence converges on the notion that bilingual learners may explore their environment more broadly. Downstream consequences of broader sampling for perception and learning are discussed. Finally, recommendations for future research to expand the scientific narrative on the impact of diverse environments on learning are provided. (PsycInfo Database Record (c) 2024 APA, all rights reserved).
Collapse
Affiliation(s)
- Leher Singh
- Department of Psychology, National University of Singapore
| | - Rachel Barr
- Department of Psychology, Georgetown University
| | - Paul C Quinn
- Department of Psychological and Brain Sciences, University of Delaware
| | | | | | - Kate Freda
- Department of Psychology, Georgetown University
| | - Dean D'Souza
- Department of Psychology, City, University of London
| |
Collapse
|
3
|
Muneta-Arrate I, Miranda-Azpiazu P, Horrillo I, Diez-Alarcia R, Meana JJ. Ligand bias and inverse agonism on 5-HT 2A receptor-mediated modulation of G protein activity in post-mortem human brain. Br J Pharmacol 2024. [PMID: 38644550 DOI: 10.1111/bph.16368] [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: 10/02/2023] [Revised: 12/30/2023] [Accepted: 02/28/2024] [Indexed: 04/23/2024] Open
Abstract
BACKGROUND AND PURPOSE Whereas biased agonism on the 5-HT2A receptor has been ascribed to hallucinogenic properties of psychedelics, no information about biased inverse agonism on this receptor is available. In schizophrenia, increased 5-HT2A receptor constitutive activity has been suggested, highlighting the therapeutic relevance of inverse agonism. This study characterized the modulation of G protein activity promoted by different drugs, commonly considered as 5-HT2A receptor antagonists, in post-mortem human brain cortex. EXPERIMENTAL APPROACH Modulation of [35S]GTPγS binding to different subtypes of Gα proteins exerted by different 5-HT2A receptor drugs was determined by scintillation proximity assays in brain from human, WT and 5-HT2A receptor KO mice. KEY RESULTS MDL-11,939 was the only drug having no effect on the basal activity of 5-HT2A receptor. Altanserin and pimavanserin decreased basal activation of Gi1, but not Gq/11 proteins. This effect was blocked by MDL-11,939 and absent in 5-HT2A receptor KO mice. Volinanserin showed 5-HT2A receptor-mediated inverse agonism both on Gi1 and Gq/11 proteins. Ketanserin exhibited 5-HT2A receptor partial agonism exclusively on Gq/11 proteins. On the other hand, eplivanserin and nelotanserin displayed inverse agonism on Gq/11 and/or Gi1 proteins, which was insensitive to MDL-11,939 and was present in KO mice suggesting a role for another receptor. CONCLUSION AND IMPLICATIONS The results reveal the existence of constitutively active 5-HT2A receptors in human pre-frontal cortex and demonstrate different pharmacological profiles of various 5-HT2A receptor drugs previously considered antagonists. These findings indicate that altanserin and pimavanserin possess biased inverse agonist profile towards 5-HT2A receptor activation of Gi1 proteins.
Collapse
Affiliation(s)
- Itziar Muneta-Arrate
- Department of Pharmacology, University of the Basque Country UPV/EHU, Leioa, Spain
- Centro de Investigación Biomédica en Red de Salud Mental CIBERSAM, ISCIII, Leioa, Spain
- Current address: Department of Basic Neuroscience, Medical Faculty, University of Geneva, Geneva, Switzerland
| | - Patricia Miranda-Azpiazu
- Department of Pharmacology, University of the Basque Country UPV/EHU, Leioa, Spain
- Centro de Investigación Biomédica en Red de Salud Mental CIBERSAM, ISCIII, Leioa, Spain
| | - Igor Horrillo
- Department of Pharmacology, University of the Basque Country UPV/EHU, Leioa, Spain
- Centro de Investigación Biomédica en Red de Salud Mental CIBERSAM, ISCIII, Leioa, Spain
- Biobizkaia Health Research Institute, Barakaldo, Spain
| | - Rebeca Diez-Alarcia
- Department of Pharmacology, University of the Basque Country UPV/EHU, Leioa, Spain
- Centro de Investigación Biomédica en Red de Salud Mental CIBERSAM, ISCIII, Leioa, Spain
- Biobizkaia Health Research Institute, Barakaldo, Spain
| | - J Javier Meana
- Department of Pharmacology, University of the Basque Country UPV/EHU, Leioa, Spain
- Centro de Investigación Biomédica en Red de Salud Mental CIBERSAM, ISCIII, Leioa, Spain
- Biobizkaia Health Research Institute, Barakaldo, Spain
| |
Collapse
|
4
|
Delgado D, Beitia M, Mercader Ruiz J, Sánchez P, Montoya-Alzola M, Fiz N, Sánchez M. A Novel Fibrin Matrix Derived from Platelet-Rich Plasma: Protocol and Characterization. Int J Mol Sci 2024; 25:4069. [PMID: 38612879 PMCID: PMC11012499 DOI: 10.3390/ijms25074069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Revised: 03/31/2024] [Accepted: 04/05/2024] [Indexed: 04/14/2024] Open
Abstract
Although fibrin matrices derived from Platelet-Rich Plasma (PRP) are widely used in regenerative medicine, they have some limitations that can hinder their application. Modifying the composition of the PRP-derived fibrin matrix may improve its properties, making it suitable for certain medical uses. Three types of fibrin matrices were obtained: a PRP-derived fibrin matrix (FM), a PRP-derived fibrin matrix with a high fibrinogen content and platelets (FM-HFP) and a PRP-derived fibrin matrix with a high fibrinogen content (FM-HF). The fibrinogen levels, biomechanical properties and cell behavior were analyzed. The presence of platelets in the FM-HFP generated an inconsistent fibrin matrix that was discarded for the rest of the analysis. The fibrinogen levels in the FM-FH were higher than those in the FM (p < 0.0001), with a concentration factor of 6.86 ± 1.81. The values of clotting and swelling achieved using the FM-HF were higher (p < 0.0001), with less clot shrinkage (p < 0.0001). The FM had a significantly higher stiffness and turned out to be the most adherent composition (p = 0.027). In terms of cell viability, the FM-HF showed less cell proliferation but higher live/dead ratio values (p < 0.01). The increased fibrinogen and platelet removal in the FM-HF improved its adhesion and other biomechanical properties without affecting cell viability.
Collapse
Affiliation(s)
- Diego Delgado
- Advanced Biological Therapy Unit, Hospital Vithas Vitoria, 01008 Vitoria-Gasteiz, Spain; (D.D.); (M.B.); (J.M.R.); (P.S.)
| | - Maider Beitia
- Advanced Biological Therapy Unit, Hospital Vithas Vitoria, 01008 Vitoria-Gasteiz, Spain; (D.D.); (M.B.); (J.M.R.); (P.S.)
| | - Jon Mercader Ruiz
- Advanced Biological Therapy Unit, Hospital Vithas Vitoria, 01008 Vitoria-Gasteiz, Spain; (D.D.); (M.B.); (J.M.R.); (P.S.)
| | - Pello Sánchez
- Advanced Biological Therapy Unit, Hospital Vithas Vitoria, 01008 Vitoria-Gasteiz, Spain; (D.D.); (M.B.); (J.M.R.); (P.S.)
- Arthroscopic Surgery Unit, Hospital Vithas Vitoria, 01008 Vitoria-Gasteiz, Spain; (M.M.-A.); (N.F.)
| | - Marta Montoya-Alzola
- Arthroscopic Surgery Unit, Hospital Vithas Vitoria, 01008 Vitoria-Gasteiz, Spain; (M.M.-A.); (N.F.)
| | - Nicolás Fiz
- Arthroscopic Surgery Unit, Hospital Vithas Vitoria, 01008 Vitoria-Gasteiz, Spain; (M.M.-A.); (N.F.)
| | - Mikel Sánchez
- Advanced Biological Therapy Unit, Hospital Vithas Vitoria, 01008 Vitoria-Gasteiz, Spain; (D.D.); (M.B.); (J.M.R.); (P.S.)
- Arthroscopic Surgery Unit, Hospital Vithas Vitoria, 01008 Vitoria-Gasteiz, Spain; (M.M.-A.); (N.F.)
| |
Collapse
|
5
|
Zoco de la Fuente A, García-García A, Pérez-Álvarez L, Moreno-Benítez I, Larrea-Sebal A, Martin C, Vilas-Vilela JL. Evaluation of Various Types of Alginate Inks for Light-Mediated Extrusion 3D Printing. Polymers (Basel) 2024; 16:986. [PMID: 38611244 PMCID: PMC11014002 DOI: 10.3390/polym16070986] [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: 02/27/2024] [Revised: 03/25/2024] [Accepted: 03/30/2024] [Indexed: 04/14/2024] Open
Abstract
Naturally derived biopolymers modifying or combining with other components are excellent candidates to promote the full potential of additive manufacturing in biomedicine, cosmetics, and the food industry. This work aims to develop new photo-cross-linkable alginate-based inks for extrusion 3D printing. Specifically, this work is focused on the effect of the addition of cross-linkers with different chemical structures (polyethylene glycol diacrylate (PEGDA), N,N'-methylenebisacrylamide (NMBA), and acrylic acid (AA)) in the potential printability and physical properties of methacrylated alginate (AlgMe) hydrogels. Although all inks showed maximum photo-curing conversions and gelation times less than 2 min, only those structures printed with the inks incorporating cross-linking agents with flexible and long chain structure (PEGDA and AA) displayed acceptable size accuracy (~0.4-0.5) and printing index (Pr ~1.00). The addition of these cross-linking agents leads to higher Young's moduli (from 1.6 to 2.0-2.6 KPa) in the hydrogels, and their different chemical structures results in variations in their mechanical and rheological properties. However, similar swelling ability (~15 swelling factor), degradability (~45 days 100% weight loss), and cytocompatibility (~100%) were assessed in all the systems, which is of great importance for the final applicability of these hydrogels.
Collapse
Affiliation(s)
- Aitana Zoco de la Fuente
- Macromolecular Chemistry Group (LABQUIMAC), Physical Chemistry Department, Faculty of Science and Technology, University of the Basque Country UPV/EHU, 48940 Leioa, Spain; (A.Z.d.l.F.); (A.G.-G.); (J.L.V.-V.)
| | - Ane García-García
- Macromolecular Chemistry Group (LABQUIMAC), Physical Chemistry Department, Faculty of Science and Technology, University of the Basque Country UPV/EHU, 48940 Leioa, Spain; (A.Z.d.l.F.); (A.G.-G.); (J.L.V.-V.)
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain
| | - Leyre Pérez-Álvarez
- Macromolecular Chemistry Group (LABQUIMAC), Physical Chemistry Department, Faculty of Science and Technology, University of the Basque Country UPV/EHU, 48940 Leioa, Spain; (A.Z.d.l.F.); (A.G.-G.); (J.L.V.-V.)
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain
| | - Isabel Moreno-Benítez
- Macromolecular Chemistry Group (LABQUIMAC), Organic Chemistry Department, Faculty of Science and Technology, University of the Basque CountryUPV/EHU, 48940 Leioa, Spain;
| | - Asier Larrea-Sebal
- Biofisika Institute (UPV/EHU, CSIC), UPV/EHU Science Park, 48940 Leioa, Spain; (A.L.-S.); (C.M.)
- Department of Biochemistry and Molecular Biology, Faculty of Science and Technology, University of the Basque Country UPV/EHU, 48940 Leioa, Spain
- Fundación Biofisika Bizkaia, Barrio Sarriena s/n, 48940 Leioa, Spain
| | - Cesar Martin
- Biofisika Institute (UPV/EHU, CSIC), UPV/EHU Science Park, 48940 Leioa, Spain; (A.L.-S.); (C.M.)
- Department of Biochemistry and Molecular Biology, Faculty of Science and Technology, University of the Basque Country UPV/EHU, 48940 Leioa, Spain
| | - Jose Luis Vilas-Vilela
- Macromolecular Chemistry Group (LABQUIMAC), Physical Chemistry Department, Faculty of Science and Technology, University of the Basque Country UPV/EHU, 48940 Leioa, Spain; (A.Z.d.l.F.); (A.G.-G.); (J.L.V.-V.)
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain
| |
Collapse
|
6
|
Barrenetxea G, Celis R, Barrenetxea J, Martínez E, De Las Heras M, Gómez O, Aguirre O. Intraovarian platelet-rich plasma injection and IVF outcomes in patients with poor ovarian response: a double-blind randomized controlled trial. Hum Reprod 2024; 39:760-769. [PMID: 38423539 DOI: 10.1093/humrep/deae038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 02/03/2024] [Indexed: 03/02/2024] Open
Abstract
STUDY QUESTION Does platelet-rich plasma (PRP) intraovarian injection increase the number of retrieved oocytes in successive ovarian punctions among patients with poor ovarian reserve (POR)? SUMMARY ANSWER The injection of PRP increases the number of retrieved oocytes without increasing the quality of developed blastocysts. WHAT IS KNOWN ALREADY Management of women with reduced ovarian response to stimulation is one of the significant challenges in reproductive medicine. Recently, PRP treatment has been proposed as an adjunct in assisted reproduction technology, with controversial results. STUDY DESIGN, SIZE, DURATION This placebo-controlled, double-blind, randomized trial included 60 patients with POR stratified according to the POSEIDON classification groups 3 and 4. It was conducted to explore the efficacy and safety of intraovarian PRP injection. Patients were proposed to undergo three consecutive ovarian stimulations to accumulate oocytes and were randomized to receive either PRP or placebo during their first oocyte retrieval. Randomization was performed using computer-generated randomization codes. Double blinding was ensured so that neither the participant nor the investigators knew of the treatment allotted. All patients underwent three ovarian stimulations and egg retrieval procedures. ICSI was performed after a third ovarian puncture. The primary endpoint was the number of mature oocytes retrieved after PRP or placebo injection in successive ovarian punctures. PARTICIPANTS/MATERIALS, SETTING, METHODS Sixty women (30-42 years) fulfilling inclusion criteria were randomized in equal proportions to the treatment or control groups. MAIN RESULTS AND THE ROLE OF CHANCE The baseline demographic and clinical characteristics [age, BMI, anti-Müllerian hormone (AMH) levels] were comparable between the groups. Regarding the primary endpoint, the cumulative number (mean ± SEM) of retrieved mature oocytes was slightly higher in the treatment group: 10.45 ± 0.41 versus 8.91 ± 0.39 in the control group, respectively (95% CI of the difference 0.42-2.66; P = 0,008). The number of mature oocytes obtained among all patients increased in successive egg retrievals: 2.61 ± 0.33 (mean ± SEM) in punction 1 (P1), 3.85 ± 0.42 in P2, and 4.73 ± 0.44 in P3. However, the increase was higher among patients receiving the assessed PRP treatment. In P2, the number of retrieved mature oocytes was 4.18 ± 0.58 versus 3.27 ± 0.61 in controls (95% CI of the difference: -0.30 to 2.12; P = 0.138) and in P3, 5.27 ± 0.73 versus 4.15 ± 0.45 (95% CI of the difference: 0.12-2.12; P = 0.029). The mean ± SEM number of developed and biopsied blastocysts was 2.43 ± 0.60 in the control group and 1.90 ± 0.32 in the treatment group, respectively (P = 0.449). The mean number of euploid blastocysts was 0.81 ± 0.24 and 0.81 ± 0.25 in the control and treatment groups, respectively (P = 1.000). The percentages of patients with euploid blastocysts were 53.33% (16 out of 30) and 43.33% (13 out of 30) for patients in the control and treatment groups, respectively (Fisher's exact test P = 0.606). The overall pregnancy rate per ITT was 43% (26 out of 60 patients). However, the percentage of clinical pregnancies was higher in the control group (18 out of 30, 60%) than in the treatment group (8 out of 30, 27%) (P = 0.018). There was also a trend toward poorer outcomes in the treatment group when considering full-term pregnancies (P = 0.170). There were no differences between control and treatment groups regarding type of delivery, and sex of newborns. LIMITATIONS, REASONS FOR CAUTION The mechanism of the potential beneficial effect of PRP injection on the number of retrieved oocytes is unknown. Either delivered platelet factors or a mechanical effect could be implicated. Further studies will be needed to confirm or refute the data presented in this trial and to specify the exact mechanism of action, if any, of PRP preparations. WIDER IMPLICATIONS OF THE FINDINGS The increasing number of women with a poor response to ovarian stimulation supports the exploration of new areas of research to know the potential benefits of therapies capable of increasing the number of oocytes available for fertilization and improving the quality of developed blastocysts. An increase in the retrieved oocytes in both arms of the trial suggests that, beyond the release of growth factor from platelets, a mechanical effect can play a role. However, neither improvement in euploid blastocyst development nor pregnancy rates have been demonstrated. STUDY FUNDING/COMPETING INTEREST(S) This trial was supported by Basque Government and included in HAZITEK program, framed in the new Euskadi 2030 Science and Technology Plan (PCTI 2030). These aids are co-financed by the European Regional Development Fund (FEDER). The study funders had no role in the study design, implementation, analysis, manuscript preparation, or decision to submit this article for publication. No competing interests are declared by all the authors. TRIAL REGISTRATION NUMBER Clinical Trial Number EudraCT 2020-000247-32. TRIAL REGISTRATION DATE 3 November 2020. DATE OF FIRST PATIENT’S ENROLLMENT 16 January 2021.
Collapse
Affiliation(s)
- G Barrenetxea
- Reproducción Bilbao Assisted Reproduction Center, Bilbao, Spain
- Departamento de Especialidades Médico-Quirúrgicas, Universidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU), Leioa, Spain
| | - R Celis
- Reproducción Bilbao Assisted Reproduction Center, Bilbao, Spain
| | - J Barrenetxea
- Reproducción Bilbao Assisted Reproduction Center, Bilbao, Spain
- Osakidetza/Servicio Vasco de Salud, Hospital de Urduliz Alfredo Espinosa, Urduliz, Spain
| | - E Martínez
- Reproducción Bilbao Assisted Reproduction Center, Bilbao, Spain
| | - M De Las Heras
- Reproducción Bilbao Assisted Reproduction Center, Bilbao, Spain
| | - O Gómez
- Reproducción Bilbao Assisted Reproduction Center, Bilbao, Spain
| | - O Aguirre
- Reproducción Bilbao Assisted Reproduction Center, Bilbao, Spain
| |
Collapse
|
7
|
McLaughlin DJ, Van Engen KJ. Social priming of speech perception: The role of individual differences in implicit racial and ethnic associations. J Exp Psychol Hum Percept Perform 2024; 50:329-357. [PMID: 38330329 DOI: 10.1037/xhp0001187] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2024]
Abstract
Prior research has shown that visual information, such as a speaker's perceived race or ethnicity, prompts listeners to expect a specific sociophonetic pattern ("social priming"). Indeed, a picture of an East Asian face may facilitate perception of second language (L2) Mandarin Chinese-accented English but interfere with perception of first language- (L1-) accented English. The present study builds on this line of inquiry, addressing the relationship between social priming effects and implicit racial/ethnic associations for L1- and L2-accented speech. For L1-accented speech, we found no priming effects when comparing White versus East Asian or Latina primes. For L2- (Mandarin Chinese-) accented speech, however, transcription accuracy was slightly better following an East Asian prime than a White prime. Across all experiments, a relationship between performance and individual differences in implicit associations emerged, but in no cases did this relationship interact with the priming manipulation. Ultimately, exploring social priming effects with additional methodological approaches, and in different populations of listeners, will help to determine whether these effects operate differently in the context of L1- and L2-accented speech. (PsycInfo Database Record (c) 2024 APA, all rights reserved).
Collapse
Affiliation(s)
- Drew J McLaughlin
- Department of Psychological and Brain Sciences, Washington University in St. Louis
| | - Kristin J Van Engen
- Department of Psychological and Brain Sciences, Washington University in St. Louis
| |
Collapse
|
8
|
Armijo A, Zamora-Sánchez D. Integration of Railway Bridge Structural Health Monitoring into the Internet of Things with a Digital Twin: A Case Study. Sensors (Basel) 2024; 24:2115. [PMID: 38610327 PMCID: PMC11013990 DOI: 10.3390/s24072115] [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: 01/24/2024] [Revised: 03/08/2024] [Accepted: 03/22/2024] [Indexed: 04/14/2024]
Abstract
Structural health monitoring (SHM) is critical for ensuring the safety of infrastructure such as bridges. This article presents a digital twin solution for the SHM of railway bridges using low-cost wireless accelerometers and machine learning (ML). The system architecture combines on-premises edge computing and cloud analytics to enable efficient real-time monitoring and complete storage of relevant time-history datasets. After train crossings, the accelerometers stream raw vibration data, which are processed in the frequency domain and analyzed using machine learning to detect anomalies that indicate potential structural issues. The digital twin approach is demonstrated on an in-service railway bridge for which vibration data were collected over two years under normal operating conditions. By learning allowable ranges for vibration patterns, the digital twin model identifies abnormal spectral peaks that indicate potential changes in structural integrity. The long-term pilot proves that this affordable SHM system can provide automated and real-time warnings of bridge damage and also supports the use of in-house-designed sensors with lower cost and edge computing capabilities such as those used in the demonstration. The successful on-premises-cloud hybrid implementation provides a cost effective and scalable model for expanding monitoring to thousands of railway bridges, democratizing SHM to improve safety by avoiding catastrophic failures.
Collapse
Affiliation(s)
- Alberto Armijo
- TECNALIA, Basque Research and Technology Alliance (BRTA), Astondo Bidea, Edificio 700, 48160 Derio, Spain;
| | | |
Collapse
|
9
|
Carranza T, Tejo-Otero A, Bengoechea C, Guerrero P, de la Caba K. Optimization of Ink Composition and 3D Printing Process to Develop Soy Protein-Based Scaffolds. Gels 2024; 10:223. [PMID: 38667642 DOI: 10.3390/gels10040223] [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: 02/28/2024] [Revised: 03/16/2024] [Accepted: 03/21/2024] [Indexed: 04/28/2024] Open
Abstract
Inks based on soybean protein isolate (SPI) were developed and their formulations were optimized as a function of the ink heat treatment and the content of other biopolymers to assess the effects of protein-polysaccharides and protein-protein interactions. First, the rheological behavior of the inks was analyzed in relation to the polyvinyl alcohol (PVA) concentration employed (20, 25, and 30 wt%) and, as a result of the analysis, the ink with 25 wt% PVA was selected. Additionally, sodium alginate (SA) and gelatin (GEL) were added to the formulations to improve the viscoelastic properties of the inks and the effect of the SA or GEL concentrations (1, 2, and 3 wt%) was studied. All inks showed shear thinning behavior and self-supporting abilities. Among all the 3D printed scaffolds, those with higher SA (3 wt%) or GEL (2 and 3 wt%) content showed higher shape fidelity and were selected for further characterization. Texture profile analysis demonstrated that the scaffolds prepared with previously heat-treated inks containing 3 wt% GEL showed the highest strength. Additionally, these scaffolds showed a higher water-uptake capacity profile.
Collapse
Affiliation(s)
- Teresa Carranza
- BIOMAT Research Group, University of the Basque Country (UPV/EHU), Escuela de Ingeniería de Gipuzkoa, 20018 Donostia-San Sebastián, Spain
| | - Aitor Tejo-Otero
- BIOMAT Research Group, University of the Basque Country (UPV/EHU), Escuela de Ingeniería de Gipuzkoa, 20018 Donostia-San Sebastián, Spain
| | - Carlos Bengoechea
- Escuela Politécnica Superior, Universidad de Sevilla, Calle Virgen de África, 7, 41011 Sevilla, Spain
| | - Pedro Guerrero
- BIOMAT Research Group, University of the Basque Country (UPV/EHU), Escuela de Ingeniería de Gipuzkoa, 20018 Donostia-San Sebastián, Spain
- Basque Center for Materials (BCMaterials), Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain
- Proteinmat Materials SL, Avenida de Tolosa 72, 20018 Donostia-San Sebastián, Spain
| | - Koro de la Caba
- BIOMAT Research Group, University of the Basque Country (UPV/EHU), Escuela de Ingeniería de Gipuzkoa, 20018 Donostia-San Sebastián, Spain
- Basque Center for Materials (BCMaterials), Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain
| |
Collapse
|
10
|
Sangroniz L, Müller AJ, Cavallo D. Origin of Melt Memory Effects in Poly(ethylene oxide): The Crucial Role of Entanglements. Macromol Rapid Commun 2024:e2400011. [PMID: 38521979 DOI: 10.1002/marc.202400011] [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: 01/06/2024] [Revised: 03/12/2024] [Indexed: 03/25/2024]
Abstract
The melt memory effect on crystallization is an intriguing phenomenon displayed by semicrystalline polymers, as opposed to low molar mass molecules. It concerns the effect of melt temperature on nucleation upon recrystallization. Typically, polymer crystals must be considerably superheated to erase the effect of previous morphology on the subsequent crystallization, avoiding an acceleration of the process. Despite being known for decades, its origin is still not fully understood. Investigating model poly(ethylene oxide) covering a wide range of molar mass, it is demonstrated that melt memory originates from topological constraints among the chains, i.e., entanglements, for PEO in which weak intermolecular interactions are present due to the ether groups. In fact, no memory is observed for samples below the critical molar mass for the formation of entanglements (about 1 kg mol-1). The increase in molar mass raises the number of entanglements and induces the formation of folded chains crystals, both factors leading to a topologically complex amorphous phase, enhancing the melt memory effect. The molecular origin of the melt memory effect in polymers with weak intermolecular interactions is thus ascribed to a slower isotropization in the melt of the chain segments originally contained in the crystals, due to the presence of entanglements among the chains. This study defines the distinction between small molecules and polymers from the point of view of melt memory.
Collapse
Affiliation(s)
- Leire Sangroniz
- Department of Chemistry and Industrial Chemistry, University of Genova, Via Dodecaneso 31, Genova, 16146, Italy
- POLYMAT and Department of Polymers and Advanced Materials: Physics, Chemistry and Technology, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel de Lardizábal 3, Donostia-San Sebastián, 20018, Spain
| | - Alejandro J Müller
- POLYMAT and Department of Polymers and Advanced Materials: Physics, Chemistry and Technology, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel de Lardizábal 3, Donostia-San Sebastián, 20018, Spain
- IKERBASQUE, Basque Foundation for Science, Plaza Euskadi 5, Bilbao, 48009, Spain
| | - Dario Cavallo
- Department of Chemistry and Industrial Chemistry, University of Genova, Via Dodecaneso 31, Genova, 16146, Italy
| |
Collapse
|
11
|
Stephan J, Olmedo-Martínez JL, Fornacon-Wood C, Stühler MR, Dimde M, Braatz D, Langer R, Müller AJ, Schmalz H, Plajer AJ. Easy Synthetic Access to High-Melting Sulfurated Copolymers and their Self-Assembling Diblock Copolymers from Phenylisothiocyanate and Oxetane. Angew Chem Int Ed Engl 2024:e202405047. [PMID: 38520388 DOI: 10.1002/anie.202405047] [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: 03/13/2024] [Accepted: 03/21/2024] [Indexed: 03/25/2024]
Abstract
Although sulfurated polymers promise unique properties, their controlled synthesis, particularly when it comes to complex and functional architectures, remains challenging. Here, we show that the copolymerization of oxetane and phenyl isothiocyanate selectively yields polythioimidocarbonates as a new class of sulfur containing polymers, with narrow molecular weight distributions (Mn=5-80 kg/mol with Đ≤1.2; Mn,max=124 kg/mol) and high melting points of up to 181 °C. The method tolerates different substituent patterns on both the oxetane and the isothiocyanate. Self-nucleation experiments reveal that π-stacking of phenyl substituents, the presence of unsubstituted polymer backbones, and the kinetically controlled linkage selectivity are key factors in maximising melting points. The increased tolerance to macro-chain transfer agents and the controlled propagation allows the synthesis of double crystalline and amphiphilic diblock copolymers, which can be assembled into micellar- and worm-like structures with amorphous cores in water. In contrast, crystallization driven self-assembly in ethanol gives cylindrical micelles or platelets.
Collapse
Affiliation(s)
- Jenny Stephan
- Institute for Chemistry and Biochemistry, Free University Berlin, Fabeckstraße 34/36, 14195, Berlin, Germany
| | - Jorge L Olmedo-Martínez
- Department of Polymers and Advanced Materials, Physics, Chemistry and Technology, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel de Lardizabal 3, 20018, Donostia-San Sebastián, Spain
| | - Christoph Fornacon-Wood
- Macromolecular Chemistry, University of Bayreuth, Universitätsstraße 30, 95447, Bayreuth, Germany
| | - Merlin R Stühler
- Institute for Chemistry and Biochemistry, Free University Berlin, Fabeckstraße 34/36, 14195, Berlin, Germany
| | - Mathias Dimde
- Institute for Chemistry and Biochemistry, Free University Berlin, Fabeckstraße 34/36, 14195, Berlin, Germany
| | - Daniel Braatz
- Institute for Chemistry and Biochemistry, Free University Berlin, Fabeckstraße 34/36, 14195, Berlin, Germany
| | - Robert Langer
- Institute for Chemistry, Martin-Luther-University Halle-Wittenberg, Kurt-Mothes-Straße 2, 06120, Halle, Germany
| | - Alejandro J Müller
- Department of Polymers and Advanced Materials, Physics, Chemistry and Technology, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel de Lardizabal 3, 20018, Donostia-San Sebastián, Spain
- IKERBASQUE, Basque Foundation for Science, Plaza Euskadi 5, 48009, Bilbao, Spain
| | - Holger Schmalz
- Macromolecular Chemistry, University of Bayreuth, Universitätsstraße 30, 95447, Bayreuth, Germany
- Bavarian Polymer Institute (BPI), University of Bayreuth, Universitätsstraße 30, 95447, Bayreuth, Germany
| | - Alex J Plajer
- Macromolecular Chemistry, University of Bayreuth, Universitätsstraße 30, 95447, Bayreuth, Germany
| |
Collapse
|
12
|
Oliden-Sánchez A, Sola-Llano R, Pérez-Pariente J, Gómez-Hortigüela L, Martínez-Martínez V. Confinement of a Styryl Dye into Nanoporous Aluminophosphates: Channels vs. Cavities. Int J Mol Sci 2024; 25:3577. [PMID: 38612388 PMCID: PMC11011965 DOI: 10.3390/ijms25073577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Revised: 03/07/2024] [Accepted: 03/13/2024] [Indexed: 04/14/2024] Open
Abstract
Styryl dyes are generally poor fluorescent molecules inherited from their flexible molecular structures. However, their emissive properties can be boosted by restricting their molecular motions. A tight confinement into inorganic molecular sieves is a good strategy to yield highly fluorescent hybrid systems. In this work, we compare the confinement effect of two Mg-aluminophosphate zeotypes with distinct pore systems (the AEL framework, a one-dimensional channeled structure with elliptical pores of 6.5 Å × 4.0 Å, and the CHA framework, composed of large cavities of 6.7 Å × 10.0 Å connected by eight-ring narrower windows) for the encapsulation of 4-DASPI styryl dye (trans-4-[4-(Dimethylamino)styryl]-1-methylpyridinium iodide). The resultant hybrid systems display significantly improved photophysical features compared to 4-DASPI in solution as a result of tight confinement in both host inorganic frameworks. Molecular simulations reveal a tighter confinement of 4-DASPI in the elliptical channels of AEL, explaining its excellent photophysical properties. On the other hand, a singular arrangement of 4-DASPI dye is found when confined within the cavity-based CHA framework, where the 4-DASPI molecule spans along two adjacent cavities, with each aromatic ring sitting on these adjacent cavities and the polymethine chain residing within the narrower eight-ring window. However, despite the singularity of this host-guest arrangement, it provides less tight confinement for 4-DASPI than AEL, resulting in a slightly lower quantum yield.
Collapse
Affiliation(s)
- Ainhoa Oliden-Sánchez
- Departamento de Química Física, Universidad del País Vasco (UPV/EHU), Apartado 644, 48080 Bilbao, Spain; (A.O.-S.); (R.S.-L.)
| | - Rebeca Sola-Llano
- Departamento de Química Física, Universidad del País Vasco (UPV/EHU), Apartado 644, 48080 Bilbao, Spain; (A.O.-S.); (R.S.-L.)
| | - Joaquín Pérez-Pariente
- Instituto de Catálisis y Petroleoquímica (CSIC), c/Marie Curie 2, Cantoblanco, 28049 Madrid, Spain;
| | - Luis Gómez-Hortigüela
- Instituto de Catálisis y Petroleoquímica (CSIC), c/Marie Curie 2, Cantoblanco, 28049 Madrid, Spain;
| | - Virginia Martínez-Martínez
- Departamento de Química Física, Universidad del País Vasco (UPV/EHU), Apartado 644, 48080 Bilbao, Spain; (A.O.-S.); (R.S.-L.)
| |
Collapse
|
13
|
Saez-Matia A, Ibarluzea MG, M-Alicante S, Muguruza-Montero A, Nuñez E, Ramis R, Ballesteros OR, Lasa-Goicuria D, Fons C, Gallego M, Casis O, Leonardo A, Bergara A, Villarroel A. MLe-KCNQ2: An Artificial Intelligence Model for the Prognosis of Missense KCNQ2 Gene Variants. Int J Mol Sci 2024; 25:2910. [PMID: 38474157 DOI: 10.3390/ijms25052910] [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: 01/31/2024] [Revised: 02/27/2024] [Accepted: 02/29/2024] [Indexed: 03/14/2024] Open
Abstract
Despite the increasing availability of genomic data and enhanced data analysis procedures, predicting the severity of associated diseases remains elusive in the absence of clinical descriptors. To address this challenge, we have focused on the KV7.2 voltage-gated potassium channel gene (KCNQ2), known for its link to developmental delays and various epilepsies, including self-limited benign familial neonatal epilepsy and epileptic encephalopathy. Genome-wide tools often exhibit a tendency to overestimate deleterious mutations, frequently overlooking tolerated variants, and lack the capacity to discriminate variant severity. This study introduces a novel approach by evaluating multiple machine learning (ML) protocols and descriptors. The combination of genomic information with a novel Variant Frequency Index (VFI) builds a robust foundation for constructing reliable gene-specific ML models. The ensemble model, MLe-KCNQ2, formed through logistic regression, support vector machine, random forest and gradient boosting algorithms, achieves specificity and sensitivity values surpassing 0.95 (AUC-ROC > 0.98). The ensemble MLe-KCNQ2 model also categorizes pathogenic mutations as benign or severe, with an area under the receiver operating characteristic curve (AUC-ROC) above 0.67. This study not only presents a transferable methodology for accurately classifying KCNQ2 missense variants, but also provides valuable insights for clinical counseling and aids in the determination of variant severity. The research context emphasizes the necessity of precise variant classification, especially for genes like KCNQ2, contributing to the broader understanding of gene-specific challenges in the field of genomic research. The MLe-KCNQ2 model stands as a promising tool for enhancing clinical decision making and prognosis in the realm of KCNQ2-related pathologies.
Collapse
Affiliation(s)
| | - Markel G Ibarluzea
- Physics Department, Universidad del País Vasco, UPV/EHU, 48940 Leioa, Spain
- Donostia International Physics Center, 20018 Donostia, Spain
| | - Sara M-Alicante
- Instituto Biofisika, CSIC-UPV/EHU, 48940 Leioa, Spain
- Physics Department, Universidad del País Vasco, UPV/EHU, 48940 Leioa, Spain
| | | | - Eider Nuñez
- Instituto Biofisika, CSIC-UPV/EHU, 48940 Leioa, Spain
- Physics Department, Universidad del País Vasco, UPV/EHU, 48940 Leioa, Spain
| | - Rafael Ramis
- Physics Department, Universidad del País Vasco, UPV/EHU, 48940 Leioa, Spain
- Donostia International Physics Center, 20018 Donostia, Spain
| | - Oscar R Ballesteros
- Physics Department, Universidad del País Vasco, UPV/EHU, 48940 Leioa, Spain
- Centro de Física de Materiales CFM, CSIC-UPV/EHU, 20018 Donostia, Spain
| | | | - Carmen Fons
- Pediatric Neurology Department, Sant Joan de Déu Hospital, Institut de Recerca Sant Joan de Déu, Barcelona University, 08950 Barcelona, Spain
| | - Mónica Gallego
- Departamento de Fisiología, Universidad del País Vasco, UPV/EHU, 01006 Vitoria-Gasteiz, Spain
| | - Oscar Casis
- Departamento de Fisiología, Universidad del País Vasco, UPV/EHU, 01006 Vitoria-Gasteiz, Spain
| | - Aritz Leonardo
- Physics Department, Universidad del País Vasco, UPV/EHU, 48940 Leioa, Spain
- Donostia International Physics Center, 20018 Donostia, Spain
| | - Aitor Bergara
- Physics Department, Universidad del País Vasco, UPV/EHU, 48940 Leioa, Spain
- Donostia International Physics Center, 20018 Donostia, Spain
- Centro de Física de Materiales CFM, CSIC-UPV/EHU, 20018 Donostia, Spain
| | | |
Collapse
|
14
|
Calvo I, Montilla A, Huergo C, Martín-Saiz L, Martín-Allende J, Tepavcevic V, Domercq M, Fernández JA. Combining imaging mass spectrometry and immunohistochemistry to analyse the lipidome of spinal cord inflammation. Anal Bioanal Chem 2024; 416:1923-1933. [PMID: 38326664 PMCID: PMC10902057 DOI: 10.1007/s00216-024-05190-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 01/10/2024] [Accepted: 01/29/2024] [Indexed: 02/09/2024]
Abstract
Inflammation is a complex process that accompanies many pathologies. Actually, dysregulation of the inflammatory process is behind many autoimmune diseases. Thus, treatment of such pathologies may benefit from in-depth knowledge of the metabolic changes associated with inflammation. Here, we developed a strategy to characterize the lipid fingerprint of inflammation in a mouse model of spinal cord injury. Using lipid imaging mass spectrometry (LIMS), we scanned spinal cord sections from nine animals injected with lysophosphatidylcholine, a chemical model of demyelination. The lesions were demonstrated to be highly heterogeneous, and therefore, comparison with immunofluorescence experiments carried out in the same section scanned by LIMS was required to accurately identify the morphology of the lesion. Following this protocol, three main areas were defined: the lesion core, the peri-lesion, which is the front of the lesion and is rich in infiltrating cells, and the uninvolved tissue. Segmentation of the LIMS experiments allowed us to isolate the lipid fingerprint of each area in a precise way, as demonstrated by the analysis using classification models. A clear difference in lipid signature was observed between the lesion front and the epicentre, where the damage was maximized. This study is a first step to unravel the changes in the lipidome associated with inflammation in the context of diverse pathologies, such as multiple sclerosis.
Collapse
Affiliation(s)
- Ibai Calvo
- Department of Physical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Bº Sarriena s/n, 48940, Leioa, Spain
| | - Alejandro Montilla
- Achucarro Basque Center for Neurosciencie, Bº Sarriena s/n, 48940, Leioa, Spain
- Department Neuroscience, Faculty of Medicine, University of the Basque Country (UPV/EHU), Bº Sarriena s/n, 48940, Leioa, Spain
| | - Cristina Huergo
- Department of Physical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Bº Sarriena s/n, 48940, Leioa, Spain
| | - Lucía Martín-Saiz
- Department of Physical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Bº Sarriena s/n, 48940, Leioa, Spain
| | - Javier Martín-Allende
- Department of Languages and Computer Systems, School of Engineering, University of the Basque Country (UPV/EHU), Paseo Rafael Moreno "Pitxitxi", n. 2/3, 48013, Bilbao, Spain
| | - Vanja Tepavcevic
- Achucarro Basque Center for Neurosciencie, Bº Sarriena s/n, 48940, Leioa, Spain
| | - María Domercq
- Achucarro Basque Center for Neurosciencie, Bº Sarriena s/n, 48940, Leioa, Spain.
- Department Neuroscience, Faculty of Medicine, University of the Basque Country (UPV/EHU), Bº Sarriena s/n, 48940, Leioa, Spain.
| | - José A Fernández
- Department of Physical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Bº Sarriena s/n, 48940, Leioa, Spain.
| |
Collapse
|
15
|
Valenzuela R, Corral J, Diez M, Campa FJ, Herrero S, Macho E, Pinto C. On-Screen Visual Feedback Effect on Static Balance Assessment with Perturbations. Sensors (Basel) 2024; 24:1588. [PMID: 38475122 DOI: 10.3390/s24051588] [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: 10/30/2023] [Revised: 02/20/2024] [Accepted: 02/28/2024] [Indexed: 03/14/2024]
Abstract
In this study, the novel mobile dynamometric platform, OREKA, was utilized to perform an extensive analysis of the centre of pressure behaviour during different tilt motion exercises. This platform is based on a parallel manipulator mechanism and can perform rotations around both horizontal axes and a vertical translation. A group of participants took part in an experimental campaign involving the completion of a set of exercises. The aim was to evaluate the platform's potential practical application and investigate the impact of visual on-screen feedback on centre of pressure motion through multiple balance indicators. The use of the OREKA platform enables the study of the impact on a user's balance control behaviour under different rotational perturbations, depending on the availability of real-time visual feedback on a screen. Furthermore, it presented data identifying postural control variations among clinically healthy individuals. These findings are fundamental to comprehending the dynamics of body balance. Further investigation is needed to explore these initial findings and fully unlock the potential of the OREKA platform for balance assessment methodologies.
Collapse
Affiliation(s)
- Ruben Valenzuela
- Bilbao School of Engineering, University of the Basque Country UPV/EHU, 48013 Bilbao, Spain
| | - Javier Corral
- Bilbao School of Engineering, University of the Basque Country UPV/EHU, 48013 Bilbao, Spain
| | - Mikel Diez
- Bilbao School of Engineering, University of the Basque Country UPV/EHU, 48013 Bilbao, Spain
| | - Francisco J Campa
- Bilbao School of Engineering, University of the Basque Country UPV/EHU, 48013 Bilbao, Spain
| | - Saioa Herrero
- Bilbao School of Engineering, University of the Basque Country UPV/EHU, 48013 Bilbao, Spain
| | - Erik Macho
- Bilbao School of Engineering, University of the Basque Country UPV/EHU, 48013 Bilbao, Spain
| | - Charles Pinto
- Bilbao School of Engineering, University of the Basque Country UPV/EHU, 48013 Bilbao, Spain
| |
Collapse
|
16
|
Allende J, Olaizola I, Ochoa de Retana AM, Palacios F, de Los Santos JM. Diastereoselective ZnCl 2-Mediated Joullié-Ugi Three-Component Reaction for the Preparation of Phosphorylated N-Acylaziridines from 2 H-Azirines. Molecules 2024; 29:1023. [PMID: 38474535 DOI: 10.3390/molecules29051023] [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: 02/07/2024] [Revised: 02/22/2024] [Accepted: 02/23/2024] [Indexed: 03/14/2024] Open
Abstract
We disclose a direct approach to the diastereoselective synthesis of phosphorus substituted N-acylaziridines based on a one-pot ZnCl2-catalyzed Joullié-Ugi three-component reaction of phosphorylated 2H-azirines, carboxylic acids and isocyanides. Hence, this robust protocol offers rapid access to an array of N-acylaziridines in moderate-to-good yields and up to 98:2 dr for substrates over a wide scope. The relevance of this synthetic methodology was achieved via a gram-scale reaction and the further derivatization of the nitrogen-containing three-membered heterocycle. The diastereo- and regioselective ring expansion of the obtained N-acylaziridines to oxazole derivatives was accomplished in the presence of BF3·OEt2 as an efficient Lewid acid catalyst.
Collapse
Affiliation(s)
- Julene Allende
- Department of Organic Chemistry I, Faculty of Pharmacy, Lascaray Research Center, University of the Basque Country (UPV/EHU), Paseo de la Universidad 7, 01006 Vitoria, Spain
| | - Iurre Olaizola
- Department of Organic Chemistry I, Faculty of Pharmacy, Lascaray Research Center, University of the Basque Country (UPV/EHU), Paseo de la Universidad 7, 01006 Vitoria, Spain
| | - Ana M Ochoa de Retana
- Department of Organic Chemistry I, Faculty of Pharmacy, Lascaray Research Center, University of the Basque Country (UPV/EHU), Paseo de la Universidad 7, 01006 Vitoria, Spain
| | - Francisco Palacios
- Department of Organic Chemistry I, Faculty of Pharmacy, Lascaray Research Center, University of the Basque Country (UPV/EHU), Paseo de la Universidad 7, 01006 Vitoria, Spain
| | - Jesús M de Los Santos
- Department of Organic Chemistry I, Faculty of Pharmacy, Lascaray Research Center, University of the Basque Country (UPV/EHU), Paseo de la Universidad 7, 01006 Vitoria, Spain
| |
Collapse
|
17
|
Diez-Ozaeta I, Vázquez-Araújo L, Estrada O, Puente T, Regefalk J. Exploring the Role of Lactic Acid Bacteria Blends in Shaping the Volatile Composition of Fermented Dairy and Rice-Based Beverages: A Step towards Innovative Plant-Based Alternatives. Foods 2024; 13:664. [PMID: 38472776 DOI: 10.3390/foods13050664] [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: 02/02/2024] [Revised: 02/17/2024] [Accepted: 02/20/2024] [Indexed: 03/14/2024] Open
Abstract
Plant-based products are currently gaining consumers' attention due mainly to the interest in reducing the consumption of foods of animal origin. A comparison of two fermentative processes utilizing dairy milk and a rice beverage was conducted in the present study, using a commercial lactic acid bacteria strain combination (CH) and a selected mixture of lactic acid bacteria from yogurt (LLV). Cell viability and physicochemical characteristics (total soluble solids, pH, total acidity) were determined to describe the samples before and after fermentation, as well as the volatile composition (gas chromatography-mass spectrometry) and the sensory profile (Rate-All-That-Apply test). Results of the analyses showed significant differences among samples, with a clear effect of the raw material on the volatile profile and the sensory characterization, as well as a significant effect of the microbial combination used to ferment the matrices. In general, the selected LLV strains showed a greater effect on both matrices than the commercial combination. Dairy samples were characterized by a volatile profile represented by different chemical families (ketones, lactones, acids, etc.), which contributed to the common descriptive attributes of milk and yogurt (e.g., dairy, cheese). In contrast, rice beverages were mainly characterized by the presence of aldehydes and alcohols (cereal, legume, nutty).
Collapse
Affiliation(s)
- Iñaki Diez-Ozaeta
- BCC Innovation, Technology Center in Gastronomy, Basque Culinary Center, 20009 Donostia-San Sebastián, Spain
| | - Laura Vázquez-Araújo
- BCC Innovation, Technology Center in Gastronomy, Basque Culinary Center, 20009 Donostia-San Sebastián, Spain
- Basque Culinary Center, Faculty of Gastronomic Sciences, Mondragon Unibertsitatea, 20009 Donostia-San Sebastián, Spain
| | - Olaia Estrada
- BCC Innovation, Technology Center in Gastronomy, Basque Culinary Center, 20009 Donostia-San Sebastián, Spain
| | - Telmo Puente
- BCC Innovation, Technology Center in Gastronomy, Basque Culinary Center, 20009 Donostia-San Sebastián, Spain
| | - John Regefalk
- BCC Innovation, Technology Center in Gastronomy, Basque Culinary Center, 20009 Donostia-San Sebastián, Spain
- Basque Culinary Center, Faculty of Gastronomic Sciences, Mondragon Unibertsitatea, 20009 Donostia-San Sebastián, Spain
| |
Collapse
|
18
|
Acha E, Gastelu N, Lopez-Urionabarrenechea A, Caballero BM. Valorisation of Sub-Products from Pyrolysis of Carbon Fibre-Reinforced Plastic Waste: Catalytic Recovery of Chemicals from Liquid and Gas Phases. Polymers (Basel) 2024; 16:580. [PMID: 38475264 DOI: 10.3390/polym16050580] [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: 12/24/2023] [Revised: 02/13/2024] [Accepted: 02/19/2024] [Indexed: 03/14/2024] Open
Abstract
Waste carbon fibre-reinforced plastics were recycled by pyrolysis followed by a thermo-catalytic treatment in order to achieve both fibre and resin recovery. The conventional pyrolysis of this waste produced unusable gas and hazardous liquid streams, which made necessary the treatment of the pyrolysis vapours. In this work, the vapours generated from pyrolysis were valorised thermochemically. The thermal treatment of the pyrolysis vapours was performed at 700 °C, 800 °C and 900 °C, and the catalytic treatment was tested at 700 °C and 800 °C with two Ni-based catalysts, one commercial and one homemade over a non-conventional olivine support. The catalysts were deeply characterised, and both had low surface area (99 m2/g and 4 m2/g, respectively) with low metal dispersion. The thermal treatment of the pyrolysis vapours at 900 °C produced high gas quantity (6.8 wt%) and quality (95.5 vol% syngas) along with lower liquid quantity (13.3 wt%) and low hazardous liquid (92.1 area% water). The Ni-olivine catalyst at the lowest temperature, 700 °C, allowed us to obtain good gas results (100% syngas), but the liquid was not as good (only 58.4 area% was water). On the other hand, the Ni commercial catalyst at 800 °C improved both the gas and liquid phases, producing 6.4 wt% of gas with 93 vol% of syngas and 13.6 wt% of liquid phase with a 97.5 area% of water. The main reaction mechanisms observed in the treatment of pyrolysis vapours were cracking, dry and wet reforming and the Boudouard reaction.
Collapse
Affiliation(s)
- Esther Acha
- Chemical and Environmental Engineering Department, Faculty of Engineering of Bilbao, University of the Basque Country (UPV/EHU), Plaza Ingeniero Torres Quevedo, 1, 48013 Bilbao, Spain
| | - Naia Gastelu
- Chemical and Environmental Engineering Department, Faculty of Engineering of Bilbao, University of the Basque Country (UPV/EHU), Plaza Ingeniero Torres Quevedo, 1, 48013 Bilbao, Spain
| | - Alexander Lopez-Urionabarrenechea
- Chemical and Environmental Engineering Department, Faculty of Engineering of Bilbao, University of the Basque Country (UPV/EHU), Plaza Ingeniero Torres Quevedo, 1, 48013 Bilbao, Spain
| | - Blanca María Caballero
- Chemical and Environmental Engineering Department, Faculty of Engineering of Bilbao, University of the Basque Country (UPV/EHU), Plaza Ingeniero Torres Quevedo, 1, 48013 Bilbao, Spain
| |
Collapse
|
19
|
Huergo-Baños C, Velasco V, Garate J, Fernández R, Martín-Allende J, Zabalza I, Artola JL, Martí RM, Asumendi A, Astigarraga E, Barreda-Gómez G, Fresnedo O, Ochoa B, Boyano MD, Fernández JA. Lipid fingerprint-based histology accurately classifies nevus, primary melanoma, and metastatic melanoma samples. Int J Cancer 2024; 154:712-722. [PMID: 37984064 DOI: 10.1002/ijc.34800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 10/24/2023] [Accepted: 11/02/2023] [Indexed: 11/22/2023]
Abstract
Probably, the most important factor for the survival of a melanoma patient is early detection and precise diagnosis. Although in most cases these tasks are readily carried out by pathologists and dermatologists, there are still difficult cases in which no consensus among experts is achieved. To deal with such cases, new methodologies are required. Following this motivation, we explore here the use of lipid imaging mass spectrometry as a complementary tool for the aid in the diagnosis. Thus, 53 samples (15 nevus, 24 primary melanomas, and 14 metastasis) were explored with the aid of a mass spectrometer, using negative polarity. The rich lipid fingerprint obtained from the samples allowed us to set up an artificial intelligence-based classification model that achieved 100% of specificity and precision both in training and validation data sets. A deeper analysis of the image data shows that the technique reports important information on the tumor microenvironment that may give invaluable insights in the prognosis of the lesion, with the correct interpretation.
Collapse
Affiliation(s)
- Cristina Huergo-Baños
- Department of Physical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - Verónica Velasco
- Department of Pathology, Cruces University Hospital, Barakaldo, Spain
- Biocruces-Bizkaia Health Research Institute, Cruces University Hospital, Barakaldo, Spain
| | - Jone Garate
- Department of Physical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - Roberto Fernández
- Department of Physical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - Javier Martín-Allende
- Languages and Computer Systems, School of Engineering University of the Basque Country (UPV/EHU), Bilbao, Spain
| | - Ignacio Zabalza
- Biocruces-Bizkaia Health Research Institute, Cruces University Hospital, Barakaldo, Spain
- Department of Pathology, Galdakao-Usansolo University Hospital, Galdakao, Spain
| | - Juan L Artola
- Biocruces-Bizkaia Health Research Institute, Cruces University Hospital, Barakaldo, Spain
- Department of Dermatology, Galdakao-Usansolo University Hospital, Galdakao, Spain
| | - Rosa M Martí
- Department of Dermatology, Arnau de Vilanova University Hospital, Institute of Biomedic Research (IRBLleida), University of Lleida, Lleida, Spain
- Centre of Biomedical Research on Cancer (CIBERONC), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - Aintzane Asumendi
- Biocruces-Bizkaia Health Research Institute, Cruces University Hospital, Barakaldo, Spain
- Department of Cell Biology and Histology, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), Leioa, Spain
| | | | | | - Olatz Fresnedo
- Department of Physiology, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - Begoña Ochoa
- Department of Physiology, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - Maria D Boyano
- Biocruces-Bizkaia Health Research Institute, Cruces University Hospital, Barakaldo, Spain
- Department of Cell Biology and Histology, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - José A Fernández
- Department of Physical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Leioa, Spain
| |
Collapse
|
20
|
Hernandez-Suarez L, Diez-Martin E, Egiguren-Ortiz J, Fernandez R, Etxebarria A, Astigarraga E, Miguelez C, Ramirez-Garcia A, Barreda-Gómez G. Serological Antibodies against Kidney, Liver, and Spleen Membrane Antigens as Potential Biomarkers in Patients with Immune Disorders. Int J Mol Sci 2024; 25:2025. [PMID: 38396703 PMCID: PMC10888476 DOI: 10.3390/ijms25042025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 01/30/2024] [Accepted: 02/05/2024] [Indexed: 02/25/2024] Open
Abstract
Immune disorders arise from complex genetic and environmental factors, which lead to dysregulation at the cellular and inflammatory levels and cause tissue damage. Recent research highlights the crucial role of reactive antibodies in autoimmune diseases and graft rejection, but their complex determination poses challenges for clinical use. Therefore, our study aimed to ascertain whether the presence of reactive antibodies against membrane antigens in tissues from both animal models and humans could serve as biomarkers in patients with autoimmune disorders. To address this issue, we examined the binding profile of serological antibodies against a diverse panel of cell membranes from the spleen, liver, and kidney tissues of monkeys, rats, and humans. After developing the cell membrane microarrays, human sera were immunologically assayed. The study was first conducted on sera from two groups, healthy subjects and patients with inflammatory and autoimmune disorders, and then optimized for kidney transplant patient sera. A significant increase in antibody reactivity against specific monkey kidney and spleen membranes was observed in the serum of patients with lupus nephritis, while kidney transplant patients showed a significant enhancement against human tissues and human embryonic kidney 293 cells. These results show the potential importance for clinical and basic research purposes of studying the presence of specific IgG against membrane antigens in patients' serum as potential biomarkers of immune disorders. However, it is important to note that these results need to be verified in further studies with a larger sample size to confirm their relevance.
Collapse
Affiliation(s)
- Leidi Hernandez-Suarez
- Department of Research and Development, IMG Pharma Biotech S.L., 48170 Zamudio, Spain; (L.H.-S.); (E.D.-M.); (J.E.-O.); (R.F.); (A.E.); (E.A.)
- Department of Immunology, Microbiology and Parasitology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), 48940 Leioa, Spain;
| | - Eguzkiñe Diez-Martin
- Department of Research and Development, IMG Pharma Biotech S.L., 48170 Zamudio, Spain; (L.H.-S.); (E.D.-M.); (J.E.-O.); (R.F.); (A.E.); (E.A.)
- Department of Immunology, Microbiology and Parasitology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), 48940 Leioa, Spain;
| | - June Egiguren-Ortiz
- Department of Research and Development, IMG Pharma Biotech S.L., 48170 Zamudio, Spain; (L.H.-S.); (E.D.-M.); (J.E.-O.); (R.F.); (A.E.); (E.A.)
- Department of Pharmacology, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), 48940 Leioa, Spain;
| | - Roberto Fernandez
- Department of Research and Development, IMG Pharma Biotech S.L., 48170 Zamudio, Spain; (L.H.-S.); (E.D.-M.); (J.E.-O.); (R.F.); (A.E.); (E.A.)
| | - Aitor Etxebarria
- Department of Research and Development, IMG Pharma Biotech S.L., 48170 Zamudio, Spain; (L.H.-S.); (E.D.-M.); (J.E.-O.); (R.F.); (A.E.); (E.A.)
| | - Egoitz Astigarraga
- Department of Research and Development, IMG Pharma Biotech S.L., 48170 Zamudio, Spain; (L.H.-S.); (E.D.-M.); (J.E.-O.); (R.F.); (A.E.); (E.A.)
| | - Cristina Miguelez
- Department of Pharmacology, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), 48940 Leioa, Spain;
- Neurodegenerative Diseases Group, BioBizkaia Health Research Institute, 48940 Barakaldo, Spain
| | - Andoni Ramirez-Garcia
- Department of Immunology, Microbiology and Parasitology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), 48940 Leioa, Spain;
| | - Gabriel Barreda-Gómez
- Department of Research and Development, IMG Pharma Biotech S.L., 48170 Zamudio, Spain; (L.H.-S.); (E.D.-M.); (J.E.-O.); (R.F.); (A.E.); (E.A.)
| |
Collapse
|
21
|
García-García A, Pérez-Álvarez L, Ruiz-Rubio L, Larrea-Sebal A, Martin C, Vilas-Vilela JL. Extrusion-Based 3D Printing of Photocrosslinkable Chitosan Inks. Gels 2024; 10:126. [PMID: 38391456 PMCID: PMC10888165 DOI: 10.3390/gels10020126] [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: 11/20/2023] [Revised: 01/30/2024] [Accepted: 01/31/2024] [Indexed: 02/24/2024] Open
Abstract
Photocuring of chitosan has shown great promise in the extrusion-based 3D printing of scaffolds for advanced biomedical and tissue engineering applications. However, the poor mechanical stability of methacrylated chitosan photocuring ink restricts its applicability. The inclusion of co-networks by means of simultaneous polycomplex formation is an effective method by which to solve this drawback, but the formed hydrogel inks are not printable. This work aims to develop new photocurable chitosan inks based on the simultaneous photocrosslinking of methacrylated chitosan (CHIMe) with N,N'-methylenebisacrylamide, polyethylene glycol diacrylate, and acrylic acid to be applied in extrusion 3D printing. Interestingly, the polycomplex co-network corresponding to the acrylic-acid-based ink could be successfully printed by the here-presented simultaneous photocuring strategy. Further, the conversion of photocrosslinking was studied via photo-DSC analyses that revealed a clear dependence on the chemical structure of the employed crosslinking agents (from 40 to ~100%). In addition, the mechanical and rheological properties of the photocured hydrogels were comparatively studied, as well as the printing quality of the extruded scaffolds. The newly developed chitosan photocurable inks demonstrated extrusion printability (squareness ~0.90; uniformity factor ~0.95) and tunable mechanical properties (Young modulus 14-1068 Pa) by means of different crosslinking approaches according to the chemical architecture of the reactive molecules employed. This work shows the great potential of photocrosslinkable chitosan inks.
Collapse
Affiliation(s)
- Ane García-García
- Grupo de Química Macromolecular (LABQUIMAC), Departamento de Química Física, Facultad de Ciencia y Tecnología, Universidad del País Vasco (UPV/EHU), 48940 Leioa, Spain
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain
| | - Leyre Pérez-Álvarez
- Grupo de Química Macromolecular (LABQUIMAC), Departamento de Química Física, Facultad de Ciencia y Tecnología, Universidad del País Vasco (UPV/EHU), 48940 Leioa, Spain
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain
| | - Leire Ruiz-Rubio
- Grupo de Química Macromolecular (LABQUIMAC), Departamento de Química Física, Facultad de Ciencia y Tecnología, Universidad del País Vasco (UPV/EHU), 48940 Leioa, Spain
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain
| | - Asier Larrea-Sebal
- Biofisika Institute (UPV/EHU, CSIC), UPV/EHU Science Park, 48940 Leioa, Spain
- Department of Biochemistry and Molecular Biology, Facultad de Ciencia y Tecnología, Universidad del País Vasco UPV/EHU, 48940 Leioa, Spain
- Fundación Biofisika Bizkaia, Barrio Sarriena s/n., 48940 Leioa, Spain
| | - Cesar Martin
- Biofisika Institute (UPV/EHU, CSIC), UPV/EHU Science Park, 48940 Leioa, Spain
- Department of Biochemistry and Molecular Biology, Facultad de Ciencia y Tecnología, Universidad del País Vasco UPV/EHU, 48940 Leioa, Spain
| | - José Luis Vilas-Vilela
- Grupo de Química Macromolecular (LABQUIMAC), Departamento de Química Física, Facultad de Ciencia y Tecnología, Universidad del País Vasco (UPV/EHU), 48940 Leioa, Spain
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain
| |
Collapse
|
22
|
Kambach S, Attorre F, Axmanová I, Bergamini A, Biurrun I, Bonari G, Carranza ML, Chiarucci A, Chytrý M, Dengler J, Garbolino E, Golub V, Hickler T, Jandt U, Jansen J, Jiménez-Alfaro B, Karger DN, Lososová Z, Rašomavičius V, Rūsiņa S, Sieber P, Stanisci A, Thuiller W, Welk E, Zimmermann NE, Bruelheide H. Climate regulation processes are linked to the functional composition of plant communities in European forests, shrublands, and grasslands. Glob Chang Biol 2024; 30:e17189. [PMID: 38375686 DOI: 10.1111/gcb.17189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 01/05/2024] [Accepted: 01/10/2024] [Indexed: 02/21/2024]
Abstract
Terrestrial ecosystems affect climate by reflecting solar irradiation, evaporative cooling, and carbon sequestration. Yet very little is known about how plant traits affect climate regulation processes (CRPs) in different habitat types. Here, we used linear and random forest models to relate the community-weighted mean and variance values of 19 plant traits (summarized into eight trait axes) to the climate-adjusted proportion of reflected solar irradiation, evapotranspiration, and net primary productivity across 36,630 grid cells at the European extent, classified into 10 types of forest, shrubland, and grassland habitats. We found that these trait axes were more tightly linked to log evapotranspiration (with an average of 6.2% explained variation) and the proportion of reflected solar irradiation (6.1%) than to net primary productivity (4.9%). The highest variation in CRPs was explained in forest and temperate shrubland habitats. Yet, the strength and direction of these relationships were strongly habitat-dependent. We conclude that any spatial upscaling of the effects of plant communities on CRPs must consider the relative contribution of different habitat types.
Collapse
Affiliation(s)
- Stephan Kambach
- Institute of Biology/Geobotany and Botanical Garden, Martin Luther University Halle-Wittenberg, Halle, Germany
| | - Fabio Attorre
- Department of Environmental Biology, Sapienza University of Rome, Roma, Italy
| | - Irena Axmanová
- Department of Botany and Zoology, Faculty of Science, Masaryk University, Brno, Czech Republic
| | - Ariel Bergamini
- Swiss Federal Research Institute WSL, Birmensdorf, Switzerland
| | - Idoia Biurrun
- Department of Plant Biology and Ecology, University of the Basque Country UPV/EHU, Bilbao, Spain
| | | | - Maria Laura Carranza
- Envixlab, Department of Biosciences and Territory, University of Molise, Pesche, Italy
- National Biodiversity Future Center (NBFC), Palermo, Italy
| | - Alessandro Chiarucci
- BIOME Lab, Department of Biological, Geological and Environmental Sciences (BiGeA), Alma Mater Studiorum University of Bologna, Bologna, Italy
| | - Milan Chytrý
- Department of Botany and Zoology, Faculty of Science, Masaryk University, Brno, Czech Republic
| | - Jürgen Dengler
- Vegetation Ecology Research Group, Institute of Natural Resource Sciences (IUNR), Zurich University of Applied Sciences (ZHAW), Wädenswil, Switzerland
- Bayreuth Center for Ecology and Environmental Research (BayCEER), University of Bayreuth, Bayreuth, Germany
| | | | | | - Thomas Hickler
- Senckenberg Biodiversity and Climate Research Centre, Frankfurt am Main, Germany
- Department of Physical Geography, Goethe University, Frankfurt am Main, Germany
| | - Ute Jandt
- Institute of Biology/Geobotany and Botanical Garden, Martin Luther University Halle-Wittenberg, Halle, Germany
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany
| | - Jan Jansen
- Department of Ecology and Physiology, Radboud University, Nijmegen, The Netherlands
| | - Borja Jiménez-Alfaro
- IMIB Biodiversity Research Institute (Univ. Oviedo-CSIC-Princ. Asturias), University of Oviedo, Oviedo, Spain
| | | | - Zdeňka Lososová
- Department of Botany and Zoology, Faculty of Science, Masaryk University, Brno, Czech Republic
| | | | - Solvita Rūsiņa
- Faculty of Geography and Earth Sciences, University of Latvia, Riga, Latvia
| | - Petra Sieber
- Institute for Atmospheric and Climate Science, ETH Zürich, Zürich, Switzerland
| | - Angela Stanisci
- Envixlab, Department of Biosciences and Territory, University of Molise, Pesche, Italy
- National Biodiversity Future Center (NBFC), Palermo, Italy
| | - Wilfried Thuiller
- Université Grenoble Alpes, Université Savoie Mont Blanc, CNRS, LECA, Grenoble, France
| | - Erik Welk
- Institute of Biology/Geobotany and Botanical Garden, Martin Luther University Halle-Wittenberg, Halle, Germany
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany
| | | | - Helge Bruelheide
- Institute of Biology/Geobotany and Botanical Garden, Martin Luther University Halle-Wittenberg, Halle, Germany
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany
| |
Collapse
|
23
|
Pastor-Alonso O, Syeda Zahra A, Kaske B, García-Moreno F, Tetzlaff F, Bockelmann E, Grunwald V, Martín-Suárez S, Riecken K, Witte OW, Encinas JM, Urbach A. Generation of adult hippocampal neural stem cells occurs in the early postnatal dentate gyrus and depends on cyclin D2. EMBO J 2024; 43:317-338. [PMID: 38177500 PMCID: PMC10897295 DOI: 10.1038/s44318-023-00011-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 11/03/2023] [Accepted: 11/20/2023] [Indexed: 01/06/2024] Open
Abstract
Lifelong hippocampal neurogenesis is maintained by a pool of multipotent adult neural stem cells (aNSCs) residing in the subgranular zone of the dentate gyrus (DG). The mechanisms guiding transition of NSCs from the developmental to the adult state remain unclear. We show here, by using nestin-based reporter mice deficient for cyclin D2, that the aNSC pool is established through cyclin D2-dependent proliferation during the first two weeks of life. The absence of cyclin D2 does not affect normal development of the dentate gyrus until birth but prevents postnatal formation of radial glia-like aNSCs. Furthermore, retroviral fate mapping reveals that aNSCs are born on-site from precursors located in the dentate gyrus shortly after birth. Taken together, our data identify the critical time window and the spatial location of the precursor divisions that generate the persistent population of aNSCs and demonstrate the central role of cyclin D2 in this process.
Collapse
Affiliation(s)
- Oier Pastor-Alonso
- Laboratory of Neural Stem Cells and Neurogenesis, Achucarro Basque Center for Neuroscience, Scientific Park, 48940, Leioa, Bizkaia, Spain
- Department of Neurology, University of California San Francisco, San Francisco, CA, 94143, USA
| | - Anum Syeda Zahra
- Department of Neurology, Jena University Hospital, 07747, Jena, Germany
| | - Bente Kaske
- Department of Neurology, Jena University Hospital, 07747, Jena, Germany
| | - Fernando García-Moreno
- Laboratory of Neural Stem Cells and Neurogenesis, Achucarro Basque Center for Neuroscience, Scientific Park, 48940, Leioa, Bizkaia, Spain
- IKERBASQUE, The Basque Foundation for Science, Plaza Euskadi 5, 48009, Bilbo, Bizkaia, Spain
- Department of Neurosciences, University of the Basque Country (UPV/EHU), Scientific Park, 48940, Leioa, Bizkaia, Spain
| | - Felix Tetzlaff
- Department of Neurology, Jena University Hospital, 07747, Jena, Germany
| | - Enno Bockelmann
- Department of Neurology, Jena University Hospital, 07747, Jena, Germany
| | - Vanessa Grunwald
- Department of Neurology, Jena University Hospital, 07747, Jena, Germany
| | - Soraya Martín-Suárez
- Laboratory of Neural Stem Cells and Neurogenesis, Achucarro Basque Center for Neuroscience, Scientific Park, 48940, Leioa, Bizkaia, Spain
| | - Kristoffer Riecken
- Research Department Cell and Gene Therapy, Department of Stem Cell Transplantation, University Medical Center Hamburg-Eppendorf, 20246, Hamburg, Germany
| | - Otto Wilhelm Witte
- Department of Neurology, Jena University Hospital, 07747, Jena, Germany
- Jena Centre for Healthy Aging, Jena University Hospital, 07747, Jena, Germany
| | - Juan Manuel Encinas
- Laboratory of Neural Stem Cells and Neurogenesis, Achucarro Basque Center for Neuroscience, Scientific Park, 48940, Leioa, Bizkaia, Spain.
- IKERBASQUE, The Basque Foundation for Science, Plaza Euskadi 5, 48009, Bilbo, Bizkaia, Spain.
- Department of Neurosciences, University of the Basque Country (UPV/EHU), Scientific Park, 48940, Leioa, Bizkaia, Spain.
| | - Anja Urbach
- Department of Neurology, Jena University Hospital, 07747, Jena, Germany.
- Jena Centre for Healthy Aging, Jena University Hospital, 07747, Jena, Germany.
| |
Collapse
|
24
|
Molinaro N, Nara S, Carreiras M. Early language dissociation in bilingual minds: magnetoencephalography evidence through a machine learning approach. Cereb Cortex 2024; 34:bhae053. [PMID: 38367613 DOI: 10.1093/cercor/bhae053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 01/26/2024] [Accepted: 01/27/2024] [Indexed: 02/19/2024] Open
Abstract
Does neural activity reveal how balanced bilinguals choose languages? Despite using diverse neuroimaging techniques, prior studies haven't provided a definitive solution to this problem. Nonetheless, studies involving direct brain stimulation in bilinguals have identified distinct brain regions associated with language production in different languages. In this magnetoencephalography study with 45 proficient Spanish-Basque bilinguals, we investigated language selection during covert picture naming and word reading tasks. Participants were prompted to name line drawings or read words if the color of the stimulus changed to green, in 10% of trials. The task was performed either in Spanish or Basque. Despite similar sensor-level evoked activity for both languages in both tasks, decoding analyses revealed language-specific classification ~100 ms post-stimulus onset. During picture naming, right occipital-temporal sensors predominantly contributed to language decoding, while left occipital-temporal sensors were crucial for decoding during word reading. Cross-task decoding analysis unveiled robust generalization effects from picture naming to word reading. Our methodology involved a fine-grained examination of neural responses using magnetoencephalography, offering insights into the dynamics of language processing in bilinguals. This study refines our understanding of the neural underpinnings of language selection and bridges the gap between non-invasive and invasive experimental evidence in bilingual language production.
Collapse
Affiliation(s)
- Nicola Molinaro
- Basque Center on Cognition, Brain and Language, Paseo Mikeletegi, 69, 20009, Donostia/San Sebastian, Spain
- Ikerbasque, Basque Foundation for Science, 48009, Bilbao, Spain
| | - Sanjeev Nara
- Basque Center on Cognition, Brain and Language, Paseo Mikeletegi, 69, 20009, Donostia/San Sebastian, Spain
- Mathematical Institute, Department of Mathematics and Computer Science, Physics, Geography, Justus-Liebig-Universität Gießen (University of Giessen), 35392, Gießen, Germany
| | - Manuel Carreiras
- Basque Center on Cognition, Brain and Language, Paseo Mikeletegi, 69, 20009, Donostia/San Sebastian, Spain
- Ikerbasque, Basque Foundation for Science, 48009, Bilbao, Spain
- University of the Basque Country. UPV/EHU, 48940, Leioa, Spain
| |
Collapse
|
25
|
Pinacho-Olaciregui J, Verde-Sesto E, Taton D, Pomposo JA. Gold Nanoclusters Synthesized within Single-Chain Nanoparticles as Catalytic Nanoreactors in Water. Polymers (Basel) 2024; 16:378. [PMID: 38337267 DOI: 10.3390/polym16030378] [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: 12/22/2023] [Revised: 01/25/2024] [Accepted: 01/26/2024] [Indexed: 02/12/2024] Open
Abstract
Metalloenzymes are able to catalyze complex biochemical reactions in cellular (aqueous) media with high efficiency. In recent years, a variety of metal-containing single-chain nanoparticles (SCNPs) have been synthesized as simplified metalloenzyme-mimetic nano-objects. However, most of the metal-containing SCNPs reported so far contained complexed metal ions but not metal nanoclusters (NCs) with diameter <5 nm, which could be used as powerful, emerging catalysts. Herein, we report the synthesis of gold nanoclusters (Au-NCs) within SCNPs and the further use of Au-NCs/SCNPs as catalytic nanoreactors in water. We demonstrate that a common motif contained in several drugs (i.e., the aminophenyl-oxazolidinone fragment present in Rivaroxaban, Sutezolid, and Linezolid) can be efficiently prepared in water from a hydrophobic precursor compound by using the Au-NCs/SCNPs as efficient catalytic nanoreactors. In summary, this work paves the way forthe synthesis of metal-NCs/SCNPs for advanced catalysis in aqueous media.
Collapse
Affiliation(s)
- Jokin Pinacho-Olaciregui
- Centro de Física de Materiales (CSIC-UPV/EHU)-Materials Physics Center MPC, Pº Manuel Lardizabal 5, E-20018 Donostia, Spain
- Laboratoire de Chimie des Polymères Organiques (LCPO), Université de Bordeaux INP-ENSCBP, 16 av. Pey Berland, 33607 Pessac CEDEX, France
| | - Ester Verde-Sesto
- Centro de Física de Materiales (CSIC-UPV/EHU)-Materials Physics Center MPC, Pº Manuel Lardizabal 5, E-20018 Donostia, Spain
- IKERBASQUE-Basque Foundation for Science, Plaza Euskadi 5, E-48009 Bilbao, Spain
| | - Daniel Taton
- Laboratoire de Chimie des Polymères Organiques (LCPO), Université de Bordeaux INP-ENSCBP, 16 av. Pey Berland, 33607 Pessac CEDEX, France
| | - José A Pomposo
- Centro de Física de Materiales (CSIC-UPV/EHU)-Materials Physics Center MPC, Pº Manuel Lardizabal 5, E-20018 Donostia, Spain
- IKERBASQUE-Basque Foundation for Science, Plaza Euskadi 5, E-48009 Bilbao, Spain
- Departamento de Polímeros y Materiales Avanzados, Física, Química y Tecnología, University of the Basque Country (UPV/EHU), Pº Manuel Lardizabal 3, E-20800 Donostia, Spain
| |
Collapse
|
26
|
Larrinaga G, Valdivia A, Arrieta-Aguirre I, Solano-Iturri JD, Ugalde-Olano A, Loizaga-Iriarte A, Santos-Martín A, Pérez-Fernández A, Angulo JC, López JI. The Expression of Alamandine Receptor MrgD in Clear Cell Renal Cell Carcinoma Is Associated with a Worse Prognosis and Unfavorable Response to Antiangiogenic Therapy. Int J Mol Sci 2024; 25:1499. [PMID: 38338778 PMCID: PMC10855800 DOI: 10.3390/ijms25031499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 01/19/2024] [Accepted: 01/23/2024] [Indexed: 02/12/2024] Open
Abstract
Renal cell carcinoma (RCC) ranks among the most prevalent malignancies in Western countries, marked by its notable heterogeneity, which contributes to an unpredictable clinical trajectory. The insufficiency of dependable biomarkers adds complexity to assessing this tumor progression. Imbalances of several components of the intrarenal renin-angiotensin system (iRAS) significantly impact patient prognoses and responses to first-line immunotherapies. In this study, we analyzed the immunohistochemical expression of the Mas-related G-protein-coupled receptor D (MrgD), which recognizes the novel RAS peptide alamandine (ALA), in a series of 87 clear cell renal cell (CCRCCs), 19 papillary (PRCC), 7 chromophobe (ChRCC) renal cell carcinomas, and 11 renal oncocytomas (RO). MrgD was expressed in all the renal tumor subtypes, with a higher mean staining intensity in the PRCCs, ChRCCs, and ROs. A high expression of MrgD at the tumor center and at the infiltrative front of CCRCC tissues was significantly associated with a high histological grade, large tumor diameter, local invasion, and locoregional node and distant metastasis. Patients with worse 5-year cancer-specific survival and a poorer response to antiangiogenic tyrosine-kinase inhibitors (TKIs) showed higher MrgD expression at the center of their primary tumors. These findings suggest a possible role of MrgD in renal carcinogenetic processes. Further studies are necessary to unveil its potential as a novel biomarker for CCRCC prognosis and response to frontline therapies.
Collapse
Affiliation(s)
- Gorka Larrinaga
- Department of Nursing, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), 48940 Leioa, Spain;
- Department of Physiology, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), 48940 Leioa, Spain
- Biobizkaia Health Research Institute, 48903 Barakaldo, Spain; (J.D.S.-I.); (A.U.-O.); (A.L.-I.); (A.S.-M.); (A.P.-F.); (J.I.L.)
| | - Asier Valdivia
- Department of Cellular Biology and Histology, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), 48940 Leioa, Spain;
| | - Inés Arrieta-Aguirre
- Department of Nursing, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), 48940 Leioa, Spain;
| | - Jon Danel Solano-Iturri
- Biobizkaia Health Research Institute, 48903 Barakaldo, Spain; (J.D.S.-I.); (A.U.-O.); (A.L.-I.); (A.S.-M.); (A.P.-F.); (J.I.L.)
- Department of Pathology, Cruces University Hospital, 48903 Barakaldo, Spain
| | - Aitziber Ugalde-Olano
- Biobizkaia Health Research Institute, 48903 Barakaldo, Spain; (J.D.S.-I.); (A.U.-O.); (A.L.-I.); (A.S.-M.); (A.P.-F.); (J.I.L.)
- Department of Pathology, Basurto University Hospital, 48903 Barakaldo, Spain
| | - Ana Loizaga-Iriarte
- Biobizkaia Health Research Institute, 48903 Barakaldo, Spain; (J.D.S.-I.); (A.U.-O.); (A.L.-I.); (A.S.-M.); (A.P.-F.); (J.I.L.)
- Department of Urology, Basurto University Hospital, University of the Basque Country (UPV/EHU), 48013 Bilbao, Spain
| | - Aida Santos-Martín
- Biobizkaia Health Research Institute, 48903 Barakaldo, Spain; (J.D.S.-I.); (A.U.-O.); (A.L.-I.); (A.S.-M.); (A.P.-F.); (J.I.L.)
- Department of Urology, Basurto University Hospital, University of the Basque Country (UPV/EHU), 48013 Bilbao, Spain
| | - Amparo Pérez-Fernández
- Biobizkaia Health Research Institute, 48903 Barakaldo, Spain; (J.D.S.-I.); (A.U.-O.); (A.L.-I.); (A.S.-M.); (A.P.-F.); (J.I.L.)
- Department of Urology, Basurto University Hospital, University of the Basque Country (UPV/EHU), 48013 Bilbao, Spain
| | - Javier C. Angulo
- Clinical Department, Faculty of Medical Sciences, European University of Madrid, 28905 Getafe, Spain;
- Department of Urology, University Hospital of Getafe, 28907 Madrid, Spain
| | - José I. López
- Biobizkaia Health Research Institute, 48903 Barakaldo, Spain; (J.D.S.-I.); (A.U.-O.); (A.L.-I.); (A.S.-M.); (A.P.-F.); (J.I.L.)
| |
Collapse
|
27
|
Correa-Chica A, Caicedo-Moreno A, Rincón-Unigarro C, Castro-Abril P, López-López W. Episodic versus thematic media framing of violence against social leaders and human rights defenders in Colombia. Int J Psychol 2024. [PMID: 38266655 DOI: 10.1002/ijop.13113] [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: 10/03/2022] [Accepted: 01/02/2024] [Indexed: 01/26/2024]
Abstract
Social leaders and human rights defenders (SLHRD) in Colombia have been under increasing attack for defending the rights of communities affected by violence. From 2016 to 2022, over 600 SLHRD were assassinated, resulting in a serious violation of both individual and community human rights. The media's portrayal of these attacks can shape public perceptions and influence efforts towards peacebuilding and promoting human rights. This study examines the media's framing of violence against SLHRD in Colombia between 2016 and 2020, a period marked by an escalation of violence after the signing of the 2016 peace accord between the Colombian government and the Revolutionary Armed Forces of Colombia (FARC). We analysed 1506 textual publications from seven media outlets using a lexicometric approach and identified two frames of news articles: episodic and thematic. Our findings suggest that the episodic media framing may present a simplistic and non-political perspective of the issue, which can impede peacebuilding efforts, while the thematic frame can raise awareness of violence against SLHRD and promote human rights defence. Our study highlights the media's significant role in shaping public opinion on violence against SLHRD, offering practical implications for advocacy and activism.
Collapse
Affiliation(s)
- Andrea Correa-Chica
- Department of Social Psychology, Basic Psychology and Methodology, Faculty of Psychology, University of Santiago de Compostela, Santiago de Compostela, Spain
| | - Angélica Caicedo-Moreno
- Department of Social Psychology, Faculty of Psychology, University of the Basque Country (UPV/EHU), San Sebastián, Spain
| | - Camilo Rincón-Unigarro
- Facultad de Psicología y Ciencias del Comportamiento, Universidad de la Sabana, Chía, Colombia
| | - Pablo Castro-Abril
- Department of Social Psychology, Faculty of Psychology, University of the Basque Country (UPV/EHU), San Sebastián, Spain
| | - Wilson López-López
- Departamento de Psicología, Pontificia Universidad Javeriana, Bogotá, Colombia
| |
Collapse
|
28
|
Vado Y, Manero-Azua A, Pereda A, Perez de Nanclares G. Choosing the Best Tissue and Technique to Detect Mosaicism in Fibrous Dysplasia/McCune-Albright Syndrome (FD/MAS). Genes (Basel) 2024; 15:120. [PMID: 38255009 PMCID: PMC10815810 DOI: 10.3390/genes15010120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 01/16/2024] [Accepted: 01/17/2024] [Indexed: 01/24/2024] Open
Abstract
GNAS-activating somatic mutations give rise to Fibrous Dysplasia/McCune-Albright syndrome (FD/MAS). The low specificity of extra-skeletal signs of MAS and the mosaic status of the mutations generate some difficulties for a proper diagnosis. We studied the clinical and molecular statuses of 40 patients referred with a clinical suspicion of FD/MAS to provide some clues. GNAS was sequenced using both Sanger and Next-Generation Sequencing (NGS). We were able to identify the pathogenic variants in 25% of the patients. Most of them were identified in the affected tissue, but not in blood. Additionally, NGS demonstrated the ability to detect more patients with mosaicism (8/34) than Sanger sequencing (4/39). Even if in some cases, the clinical information was not complete, we confirmed that, as in previous works, when the patients were young children with a single manifestation, such as hyperpigmented skin macules or precocious puberty, the molecular diagnosis was usually negative. In conclusion, as FD/MAS is caused by mosaic variants, it is essential to use sensitive techniques that allow for the detection of low percentages and to choose the right tissue to study. When not possible, and due to the low positive genetic rate, patients with FD/MAS should only be genetically tested when the clinical diagnosis is really uncertain.
Collapse
Affiliation(s)
| | | | | | - Guiomar Perez de Nanclares
- Rare Disease Research Group, Molecular (Epi) Genetics Laboratory, Bioaraba Health Research Institute, Araba University Hospital, 01009 Vitoria-Gasteiz, Spain; (Y.V.); (A.M.-A.); (A.P.)
| |
Collapse
|
29
|
Gutiérrez X, Pons M, Sokolovski D. Quantum Measurements and Delays in Scattering by Zero-Range Potentials. Entropy (Basel) 2024; 26:75. [PMID: 38248200 PMCID: PMC10814751 DOI: 10.3390/e26010075] [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: 12/13/2023] [Revised: 01/05/2024] [Accepted: 01/12/2024] [Indexed: 01/23/2024]
Abstract
Eisenbud-Wigner-Smith delay and the Larmor time give different estimates for the duration of a quantum scattering event. The difference is most pronounced in the case where the de Broglie wavelength is large compared to the size of the scatterer. We use the methods of quantum measurement theory to analyse both approaches and to decide which one of them, if any, describes the duration a particle spends in the region that contains the scattering potential. The cases of transmission, reflection, and three-dimensional elastic scattering are discussed in some detail.
Collapse
Affiliation(s)
- Xabier Gutiérrez
- Departamento de Química-Física, Universidad del País Vasco, UPV/EHU, 48940 Leioa, Spain;
- EHU Quantum Center, Universidad del País Vasco, UPV/EHU, 48940 Leioa, Spain;
| | - Marisa Pons
- EHU Quantum Center, Universidad del País Vasco, UPV/EHU, 48940 Leioa, Spain;
- Departamento de Física Aplicada, Universidad del País Vasco, UPV/EHU, 48013 Bilbao, Spain
| | - Dmitri Sokolovski
- EHU Quantum Center, Universidad del País Vasco, UPV/EHU, 48940 Leioa, Spain;
- IKERBASQUE, Basque Foundation for Science, 48011 Bilbao, Spain
| |
Collapse
|
30
|
De Hoyos-Martinez PL, Mendez SB, Martinez EC, Wang DY, Labidi J. Elaboration of Thermally Performing Polyurethane Foams, Based on Biopolyols, with Thermal Insulating Applications. Polymers (Basel) 2024; 16:258. [PMID: 38257057 PMCID: PMC10821512 DOI: 10.3390/polym16020258] [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: 11/20/2023] [Revised: 12/30/2023] [Accepted: 01/09/2024] [Indexed: 01/24/2024] Open
Abstract
In this work, biobased rigid polyurethane foams (PUFs) were developed with the aim of achieving thermal and fireproofing properties that can compete with those of the commercially available products. First, the synthesis of a biopolyol from a wood residue by means of a scaled-up process with suitable yield and reaction conditions was carried out. This biopolyol was able to substitute completely the synthetic polyols that are typically employed within a polyurethane formulation. Different formulations were developed to assess the effect of two flame retardants, namely, polyhedral oligomeric silsesquioxane (POSS) and amino polyphosphate (APP), in terms of their thermal properties and degradation and their fireproofing mechanism. The structure and the thermal degradation of the different formulations was evaluated via Fourier Transformed Infrared Spectroscopy (FTIR) and thermogravimetric analysis (TGA). Likewise, the performance of the different PUF formulations was studied and compared to that of an industrial PUF. From these results, it can be highlighted that the addition of the flame retardants into the formulation showed an improvement in the results of the UL-94 vertical burning test and the LOI. Moreover, the fireproofing performance of the biobased formulations was comparable to that of the industrial one. In addition to that, it can be remarked that the biobased formulations displayed an excellent performance as thermal insulators (0.02371-0.02149 W·m-1·K-1), which was even slightly higher than that of the industrial one.
Collapse
Affiliation(s)
- Pedro Luis De Hoyos-Martinez
- Chemical and Environmental Engineering Department, University of the Basque Country, Plaza Europa 1, 20018 Donostia-San Sebastián, Spain;
| | - Sebastian Barriga Mendez
- Chemical and Environmental Engineering Department, University of the Basque Country, Plaza Europa 1, 20018 Donostia-San Sebastián, Spain;
| | - Eriz Corro Martinez
- Chemical and Environmental Engineering Department, University of the Basque Country, Otaola Etorbidea 29, 20600 Eibar, Spain;
| | - De-Yi Wang
- IMDEA Materials Institute, C/Eric Kandel, 2, 28906 Getafe, Spain;
- Escuela Politécnica Superior, Universidad Francisco de Vitoria, Ctra. Pozuelo-Majadahonda Km 1800, 28223 Pozuelo de Alarcón, Spain
| | - Jalel Labidi
- Chemical and Environmental Engineering Department, University of the Basque Country, Plaza Europa 1, 20018 Donostia-San Sebastián, Spain;
| |
Collapse
|
31
|
Sánchez-Bodón J, Diaz-Galbarriatu M, Sola-Llano R, Ruiz-Rubio L, Vilas-Vilela JL, Moreno-Benitez I. Catalyst-Free Amino-Yne Click Reaction: An Efficient Way for Immobilizing Amoxicillin onto Polymeric Surfaces. Polymers (Basel) 2024; 16:246. [PMID: 38257045 PMCID: PMC10818529 DOI: 10.3390/polym16020246] [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: 12/23/2023] [Revised: 01/10/2024] [Accepted: 01/11/2024] [Indexed: 01/24/2024] Open
Abstract
Surface modifications play a crucial role in enhancing the functionality of biomaterials. Different approaches can be followed in order to achieve the bioconjugation of drugs and biological compounds onto polymer surfaces. In this study, we focused on the immobilization of an amoxicillin antibiotic onto the surface of poly-L-lactic acid (PLLA) using a copper-free amino-yne click reaction. The utilization of this reaction allowed for a selective and efficient bioconjugation of the amoxicillin moiety onto the PLLA surface, avoiding copper-related concerns and ensuring biocompatibility. The process involved sequential steps that included surface activation via alkaline hydrolysis followed by an amidation reaction with ethylendiamine, functionalization with propiolic groups, and subsequent conjugation with amoxicillin via a click chemistry approach. Previous amoxicillin immobilization using tryptophan and fluorescent amino acid conjugation was carried out in order to determine the efficacy of the proposed methodology. Characterization techniques such as X-ray photoelectron spectroscopy (XPS), Attenuated Total Reflection (ATR)-Fourier Transform Infrared (FTIR) spectroscopy, surface imaging, water contact angle determination, and spectroscopic analysis confirmed the successful immobilization of both tryptophan and amoxicillin while maintaining the integrity of the PLLA surface. This tailored modification not only exhibited a novel method for surface functionalization but also opens avenues for developing antimicrobial biomaterials with improved drug-loading capacity.
Collapse
Affiliation(s)
- Julia Sánchez-Bodón
- Macromolecular Chemistry Group (LABQUIMAC), Department of Physical Chemistry, University of the Basque Country (UPV/EHU), 48940 Leioa, Spain; (J.S.-B.); (M.D.-G.); (L.R.-R.); (J.L.V.-V.)
| | - Maria Diaz-Galbarriatu
- Macromolecular Chemistry Group (LABQUIMAC), Department of Physical Chemistry, University of the Basque Country (UPV/EHU), 48940 Leioa, Spain; (J.S.-B.); (M.D.-G.); (L.R.-R.); (J.L.V.-V.)
| | - Rebeca Sola-Llano
- Department of Physical Chemistry, University of the Basque Country (UPV/EHU), 48940 Leioa, Spain;
| | - Leire Ruiz-Rubio
- Macromolecular Chemistry Group (LABQUIMAC), Department of Physical Chemistry, University of the Basque Country (UPV/EHU), 48940 Leioa, Spain; (J.S.-B.); (M.D.-G.); (L.R.-R.); (J.L.V.-V.)
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU, Science Park, 48940 Leioa, Spain
| | - José Luis Vilas-Vilela
- Macromolecular Chemistry Group (LABQUIMAC), Department of Physical Chemistry, University of the Basque Country (UPV/EHU), 48940 Leioa, Spain; (J.S.-B.); (M.D.-G.); (L.R.-R.); (J.L.V.-V.)
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU, Science Park, 48940 Leioa, Spain
| | - Isabel Moreno-Benitez
- Macromolecular Chemistry Group (LABQUIMAC), Department of Organic and Inorganic Chemistry, University of the Basque Country (UPV/EHU), 48940 Leioa, Spain
| |
Collapse
|
32
|
Martin CD, Pastureau R, Kerr E, de Bruin A. Processing of Synonyms and Homographs in Bilingual and Monolingual Speakers. J Cogn 2024; 7:4. [PMID: 38223222 PMCID: PMC10785954 DOI: 10.5334/joc.329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 10/24/2023] [Indexed: 01/16/2024] Open
Abstract
Bilinguals have long-lasting experience with cross-language double-mappings (i.e., translation equivalents and interlingual homographs (or false friends)). Considering this, we examined whether bilinguals differ from monolinguals in within-language double-mapping (i.e., synonyms and homographs) processing. Across two experiments, we compared performances from Spanish monolinguals and Spanish-Basque bilinguals on a behavioral picture-word matching task. The words were all presented in Spanish, the native language of all participants. Participants responded to synonyms and homographs (both double-mappings) or single-mappings (controls). The reaction times in both experiments showed clear and significant costs in processing within-language double-mapping stimuli, as well as intrinsic differences in processing homographs versus synonyms. However, these effects did not differ between bilinguals and monolinguals. The present findings thus suggest that the bilinguals' extensive experience with cross-linguistic double-mappings does not transfer onto within-language double-mapping processing.
Collapse
Affiliation(s)
- Clara D. Martin
- Basque center on Cognition, Brain and Language, San Sebastian, ES
- Ikerbasque – Basque Foundation for Science, Bilbao, ES
| | - Romain Pastureau
- Basque center on Cognition, Brain and Language, San Sebastian, ES
- Universidad del País Vasco/Eusjkal Herriko Unibertsitatea, San Sebastián, ES
| | - Emilia Kerr
- LPL – Aix-Marseille University, Aix-en-Provence, FR
| | | |
Collapse
|
33
|
Lorca C, Fernández-Rhodes M, Sánchez Milán JA, Mulet M, Elortza F, Ramos-Miguel A, Callado LF, Meana JJ, Mur M, Batalla I, Vilella E, Serra A, Gallart-Palau X. Next-Generation Proteomics of Brain Extracellular Vesicles in Schizophrenia Provide New Clues on the Altered Molecular Connectome. Biomedicines 2024; 12:129. [PMID: 38255234 PMCID: PMC10812948 DOI: 10.3390/biomedicines12010129] [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: 12/20/2023] [Revised: 12/30/2023] [Accepted: 01/05/2024] [Indexed: 01/24/2024] Open
Abstract
Extracellular vesicles (EVs) are tiny membranous structures that mediate intercellular communication. The role(s) of these vesicles have been widely investigated in the context of neurological diseases; however, their potential implications in the neuropathology subjacent to human psychiatric disorders remain mostly unknown. Here, by using next-generation discovery-driven proteomics, we investigate the potential role(s) of brain EVs (bEVs) in schizophrenia (SZ) by analyzing these vesicles from the three post-mortem anatomical brain regions: the prefrontal cortex (PFC), hippocampus (HC), and caudate (CAU). The results obtained indicate that bEVs from SZ-affected brains contain region-specific proteins that are associated with abnormal GABAergic and glutamatergic transmission. Similarly, these vesicles from the analyzed regions were implicated in synaptic decay, abnormal brain immunity, neuron structural imbalances, and impaired cell homeostasis. Our findings also provide evidence, for the first time, that networks of molecular exchange (involving the PFC, HC, and CAU) are potentially active and mediated by EVs in non-diseased brains. Additionally, these bEV-mediated networks seem to have become partially reversed and largely disrupted in the brains of subjects affected by SZ. Taken as a whole, these results open the door to the uncovering of new biological markers and therapeutic targets, based on the compositions of bEVs, for the benefit of patients affected by SZ and related psychotic disorders.
Collapse
Affiliation(s)
- Cristina Lorca
- Biomedical Research Institute of Lleida Dr. Pifarré Foundation (IRBLLEIDA), Neuroscience Area, +Pec Proteomics Research Group (+PPRG), University Hospital Arnau de Vilanova (HUAV), 80 Av. Rovira Roure, 25198 Lleida, Spain; (C.L.); (M.F.-R.); (J.A.S.M.); (M.M.)
- Department of Medical Basic Sciences, Biomedical Research Institute of Lleida Dr. Pifarré Foundation (IRBLLEIDA), +Pec Proteomics Research Group (+PPRG), University of Lleida (UdL), 25198 Lleida, Spain
| | - María Fernández-Rhodes
- Biomedical Research Institute of Lleida Dr. Pifarré Foundation (IRBLLEIDA), Neuroscience Area, +Pec Proteomics Research Group (+PPRG), University Hospital Arnau de Vilanova (HUAV), 80 Av. Rovira Roure, 25198 Lleida, Spain; (C.L.); (M.F.-R.); (J.A.S.M.); (M.M.)
- Department of Medical Basic Sciences, Biomedical Research Institute of Lleida Dr. Pifarré Foundation (IRBLLEIDA), +Pec Proteomics Research Group (+PPRG), University of Lleida (UdL), 25198 Lleida, Spain
| | - Jose Antonio Sánchez Milán
- Biomedical Research Institute of Lleida Dr. Pifarré Foundation (IRBLLEIDA), Neuroscience Area, +Pec Proteomics Research Group (+PPRG), University Hospital Arnau de Vilanova (HUAV), 80 Av. Rovira Roure, 25198 Lleida, Spain; (C.L.); (M.F.-R.); (J.A.S.M.); (M.M.)
- Department of Medical Basic Sciences, Biomedical Research Institute of Lleida Dr. Pifarré Foundation (IRBLLEIDA), +Pec Proteomics Research Group (+PPRG), University of Lleida (UdL), 25198 Lleida, Spain
| | - María Mulet
- Biomedical Research Institute of Lleida Dr. Pifarré Foundation (IRBLLEIDA), Neuroscience Area, +Pec Proteomics Research Group (+PPRG), University Hospital Arnau de Vilanova (HUAV), 80 Av. Rovira Roure, 25198 Lleida, Spain; (C.L.); (M.F.-R.); (J.A.S.M.); (M.M.)
- Department of Medical Basic Sciences, Biomedical Research Institute of Lleida Dr. Pifarré Foundation (IRBLLEIDA), +Pec Proteomics Research Group (+PPRG), University of Lleida (UdL), 25198 Lleida, Spain
| | - Félix Elortza
- Proteomics Platform, CIC bioGUNE, Basque Research and Technology Alliance (BRTA), CIBERehd, Science and Technology Park of Bizkaia, 48160 Derio, Spain;
| | - Alfredo Ramos-Miguel
- Department of Pharmacology, University of the Basque Country UPV/EHU, 48940 Leioa, Spain; (A.R.-M.); (L.F.C.); (J.J.M.)
- Biocruces Bizkaia Health Research Institute, 48903 Barakaldo, Spain
- Centro de Investigación Biomédica en Red en Salud Mental CIBERSAM, Instituto de Salud Carlos III, 43206 Reus, Spain
| | - Luis F. Callado
- Department of Pharmacology, University of the Basque Country UPV/EHU, 48940 Leioa, Spain; (A.R.-M.); (L.F.C.); (J.J.M.)
- Biocruces Bizkaia Health Research Institute, 48903 Barakaldo, Spain
- Centro de Investigación Biomédica en Red en Salud Mental CIBERSAM, Instituto de Salud Carlos III, 43206 Reus, Spain
| | - J. Javier Meana
- Department of Pharmacology, University of the Basque Country UPV/EHU, 48940 Leioa, Spain; (A.R.-M.); (L.F.C.); (J.J.M.)
- Biocruces Bizkaia Health Research Institute, 48903 Barakaldo, Spain
- Centro de Investigación Biomédica en Red en Salud Mental CIBERSAM, Instituto de Salud Carlos III, 43206 Reus, Spain
| | - Maria Mur
- Psychiatry Department, Hospital Universitari Santa Maria, Medicine Department, Universitat de Lleida (UdL), 25198 Lleida, Spain; (M.M.); (I.B.)
| | - Iolanda Batalla
- Psychiatry Department, Hospital Universitari Santa Maria, Medicine Department, Universitat de Lleida (UdL), 25198 Lleida, Spain; (M.M.); (I.B.)
| | - Elisabet Vilella
- Centro de Investigación Biomédica en Red en Salud Mental CIBERSAM, Instituto de Salud Carlos III, 43206 Reus, Spain
- Hospital Universitari Institut Pere Mata, Institut Investigació Sanitària Pere Virgili (IISPV)-CERCA, Universitat Rovira i Virgili, 43206 Reus, Spain
| | - Aida Serra
- Department of Medical Basic Sciences, Biomedical Research Institute of Lleida Dr. Pifarré Foundation (IRBLLEIDA), +Pec Proteomics Research Group (+PPRG), University of Lleida (UdL), 25198 Lleida, Spain
| | - Xavier Gallart-Palau
- Biomedical Research Institute of Lleida Dr. Pifarré Foundation (IRBLLEIDA), Neuroscience Area, +Pec Proteomics Research Group (+PPRG), University Hospital Arnau de Vilanova (HUAV), 80 Av. Rovira Roure, 25198 Lleida, Spain; (C.L.); (M.F.-R.); (J.A.S.M.); (M.M.)
- Department of Psychology, University of Lleida (UdL), 25001 Lleida, Spain
| |
Collapse
|
34
|
Rosales-Murillo S, Sánchez-Bodón J, Hernández Olmos S, Ibarra-Vázquez M, Guerrero-Ramírez L, Pérez-Álvarez L, Vilas-Vilela J. Anthocyanin-Loaded Polymers as Promising Nature-Based, Responsive, and Bioactive Materials. Polymers (Basel) 2024; 16:163. [PMID: 38201828 PMCID: PMC10781030 DOI: 10.3390/polym16010163] [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: 11/30/2023] [Revised: 12/19/2023] [Accepted: 12/30/2023] [Indexed: 01/12/2024] Open
Abstract
Anthocyanins are a specific group of molecules found in nature that have recently received increasing attention due to their interesting biological and colorimetric properties that have been successfully applied in several fields such as food preservation and biomedicine. Consequently, reviews devoted to a general overview of these flavonoids have proliferated in recent years. Meanwhile, the incorporation of anthocyanins into polymeric systems has become an interesting strategy to widen the applicability of these molecules and develop new smart and functional polymers in the above cited areas. However, anthocyanin-based polymers have been scarcely reviewed in the literature. Accordingly, this review aims to be a systematic summary of the most recent approaches for the incorporation of anthocyanins into macro-, micro-, or nanostructured polymers. Moreover, this work describes the fundamentals of the applicability of smart anthocyanin-based polymers and offers an updated review of their most interesting applications as sensors, biological regulators, and active materials.
Collapse
Affiliation(s)
- S.S. Rosales-Murillo
- Chemistry Department, University Center of Exact Sciences and Engineering, University of Guadalajara, Guadalajara 44430, Mexico; (S.S.R.-M.); (S.L.H.O.); (M.F.I.-V.); (L.G.G.-R.)
| | - Julia Sánchez-Bodón
- Macromolecular Chemistry Group (LQM), Physical Chemistry Department, Faculty of Science and Technology, University of the Basque Country, 48940 Leioa, Spain; (J.S.-B.); (J.L.V.-V.)
| | - S.L. Hernández Olmos
- Chemistry Department, University Center of Exact Sciences and Engineering, University of Guadalajara, Guadalajara 44430, Mexico; (S.S.R.-M.); (S.L.H.O.); (M.F.I.-V.); (L.G.G.-R.)
| | - M.F. Ibarra-Vázquez
- Chemistry Department, University Center of Exact Sciences and Engineering, University of Guadalajara, Guadalajara 44430, Mexico; (S.S.R.-M.); (S.L.H.O.); (M.F.I.-V.); (L.G.G.-R.)
- Technological University of Jalisco, Guadalajara 44970, Mexico
| | - L.G. Guerrero-Ramírez
- Chemistry Department, University Center of Exact Sciences and Engineering, University of Guadalajara, Guadalajara 44430, Mexico; (S.S.R.-M.); (S.L.H.O.); (M.F.I.-V.); (L.G.G.-R.)
| | - L. Pérez-Álvarez
- Macromolecular Chemistry Group (LQM), Physical Chemistry Department, Faculty of Science and Technology, University of the Basque Country, 48940 Leioa, Spain; (J.S.-B.); (J.L.V.-V.)
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain
| | - J.L. Vilas-Vilela
- Macromolecular Chemistry Group (LQM), Physical Chemistry Department, Faculty of Science and Technology, University of the Basque Country, 48940 Leioa, Spain; (J.S.-B.); (J.L.V.-V.)
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain
| |
Collapse
|
35
|
Mnafki R, Morales A, Sillero L, Khiari R, Moussaoui Y, Labidi J. Integral Valorization of Posidonia oceanica Balls: An Abundant and Potential Biomass. Polymers (Basel) 2024; 16:164. [PMID: 38201829 PMCID: PMC10780897 DOI: 10.3390/polym16010164] [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: 12/07/2023] [Revised: 12/26/2023] [Accepted: 12/29/2023] [Indexed: 01/12/2024] Open
Abstract
Posidonia oceanica balls (POB), a kind of seagrass, are a significant environmental issue since they are annually discharged onto beaches. Their current usefulness limits interest in their management and enhances the environmental problem. Therefore, in this research, the potential of this lignocellulosic biomass was studied from a holistic biorefinery point of view. To this end, an in-depth study was carried out to select the best pathway for the integral valorization of POBs. First, an autohydrolysis process was studied for the recovery of oligosaccharides. Then, a delignification stage was applied, where, in addition to studying different delignification methods, the influence of the autohydrolysis pre-treatment was also investigated. Finally, cellulose nanofibers (CNFs) were obtained through a chemo-mechanical treatment. The results showed that autohydrolysis not only improved the delignification process and its products, but also allowed the hemicelluloses to be valorized. Acetoformosolv delignification proved to be the most successful in terms of lignin and cellulose properties. However, alkaline delignification was able to extract the highest amount of lignin with low purity. CNFs were also successfully produced from bleached solids. Therefore, the potential of POB as a feedstock for a biorefinery was confirmed, and the pathway should be chosen according to the requirements of the desired end products.
Collapse
Affiliation(s)
- Rim Mnafki
- Organic Chemistry Laboratory (LR17ES08), Faculty of Sciences of Sfax, Sfax 3018, Tunisia
- Faculty of Sciences of Gafsa, University of Gafsa, Gafsa 2112, Tunisia
| | - Amaia Morales
- Biorefinery Processes Research Group, Department of Chemical and Environmental Engineering, University of Basque Country (UPV/EHU), 20018 Donostia-San Sebastian, Spain
| | - Leyre Sillero
- Biorefinery Processes Research Group, Department of Chemical and Environmental Engineering, University of Basque Country (UPV/EHU), 01006 Vitoria-Gasteiz, Spain
| | - Ramzi Khiari
- Department of Textile, Higher Institute of Technological Studies (ISET) of Ksar-Hellal, Ksar-Hellal 5070, Tunisia
- CNRS, Grenoble INP, LGP2, University of Grenoble Alpes, 38000 Grenoble, France
| | - Younes Moussaoui
- Organic Chemistry Laboratory (LR17ES08), Faculty of Sciences of Sfax, Sfax 3018, Tunisia
- Faculty of Sciences of Gafsa, University of Gafsa, Gafsa 2112, Tunisia
| | - Jalel Labidi
- Biorefinery Processes Research Group, Department of Chemical and Environmental Engineering, University of Basque Country (UPV/EHU), 20018 Donostia-San Sebastian, Spain
| |
Collapse
|
36
|
Guslienko K. 3D Magnetization Textures: Toroidal Magnetic Hopfion Stability in Cylindrical Samples. Nanomaterials (Basel) 2024; 14:125. [PMID: 38202580 PMCID: PMC10780626 DOI: 10.3390/nano14010125] [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: 12/08/2023] [Revised: 12/27/2023] [Accepted: 01/03/2024] [Indexed: 01/12/2024]
Abstract
Topologically non-trivial magnetization configurations in ferromagnetic materials on the nanoscale, such as hopfions, skyrmions, and vortices, have attracted considerable attention of researchers during the last few years. In this article, by applying the theory of micromagnetism, I demonstrate that the toroidal hopfion magnetization configuration is a metastable state of a thick cylindrical ferromagnetic nanodot or a nanowire of a finite radius. The existence of this state is a result of the competition among exchange, magnetostatic, and magnetic anisotropy energies. The Dzyaloshinskii-Moriya exchange interaction and surface magnetic anisotropy are of second importance for the hopfion stabilization. The toroidal hopfion metastable magnetization configuration may be reached in the process of remagnetizing the sample by applying an external magnetic field along the cylindrical axis.
Collapse
Affiliation(s)
- Konstantin Guslienko
- Departamento de Polímeros y Materiales Avanzados: Física, Química y Tecnología, Universidad del País Vasco, UPV/EHU, 20018 San Sebastián, Spain;
- EHU Quantum Center, University of the Basque Country, UPV/EHU, 48940 Leioa, Spain
- IKERBASQUE, The Basque Foundation for Science, 48009 Bilbao, Spain
| |
Collapse
|
37
|
Marques-Almeida T, Lanceros-Mendez S, Ribeiro C. State of the Art and Current Challenges on Electroactive Biomaterials and Strategies for Neural Tissue Regeneration. Adv Healthc Mater 2024; 13:e2301494. [PMID: 37843074 DOI: 10.1002/adhm.202301494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 09/22/2023] [Indexed: 10/17/2023]
Abstract
The loss or failure of an organ/tissue stands as one of the healthcare system's most prevalent, devastating, and costly challenges. Strategies for neural tissue repair and regeneration have received significant attention due to their particularly strong impact on patients' well-being. Many research efforts are dedicated not only to control the disease symptoms but also to find solutions to repair the damaged tissues. Neural tissue engineering (TE) plays a key role in addressing this problem and significant efforts are being carried out to develop strategies for neural repair treatment. In the last years, active materials allowing to tune cell-materials interaction are being increasingly used, representing a recent paradigm in TE applications. Among the most important stimuli influencing cell behavior are the electrical and mechanical ones. In this way, materials with the ability to provide this kind of stimuli to the neural cells seem to be appropriate to support neural TE. In this scope, this review summarizes the different biomaterials types used for neural TE, highlighting the relevance of using active biomaterials and electrical stimulation. Furthermore, this review provides not only a compilation of the most relevant studies and results but also strategies for novel and more biomimetic approaches for neural TE.
Collapse
Affiliation(s)
- Teresa Marques-Almeida
- Physics Centre of Minho and Porto Universities (CF-UM-UP), University of Minho, Braga, 4710-057, Portugal
- LaPMET - Laboratory of Physics for Materials and Emergent Technologies, University of Minho, Braga, 4710-057, Portugal
| | - Senentxu Lanceros-Mendez
- Physics Centre of Minho and Porto Universities (CF-UM-UP), University of Minho, Braga, 4710-057, Portugal
- LaPMET - Laboratory of Physics for Materials and Emergent Technologies, University of Minho, Braga, 4710-057, Portugal
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, Leioa, 48940, Spain
- IKERBASQUE, Basque Foundation for Science, Bilbao, 48009, Spain
| | - Clarisse Ribeiro
- Physics Centre of Minho and Porto Universities (CF-UM-UP), University of Minho, Braga, 4710-057, Portugal
- LaPMET - Laboratory of Physics for Materials and Emergent Technologies, University of Minho, Braga, 4710-057, Portugal
| |
Collapse
|
38
|
Taboada FG, Chust G, Santos Mocoroa M, Aldanondo N, Fontán A, Cotano U, Álvarez P, Erauskin-Extramiana M, Irigoien X, Fernandes-Salvador JA, Boyra G, Uriarte A, Ibaibarriaga L. Shrinking body size of European anchovy in the Bay of Biscay. Glob Chang Biol 2024; 30:e17047. [PMID: 38273534 DOI: 10.1111/gcb.17047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Revised: 10/21/2023] [Accepted: 10/31/2023] [Indexed: 01/27/2024]
Abstract
Decreased body size is often cited as a major response to ocean warming. Available evidence, however, questions the actual emergence of shrinking trends and the prevalence of temperature-driven changes in size over alternative drivers. In marine fish, changes in food availability or fluctuations in abundance, including those due to size-selective fishing, provide compelling mechanisms to explain changes in body size. Here, based on three decades of scientific survey data (1990-2021), we report a decline in the average body size-length and weight-of anchovy, Engraulis encrasicolus L., in the Bay of Biscay. Shrinking was evident in all age classes, from juveniles to adults. Allometric adjustment indicated slightly more pronounced declines in weight than in total length, which is consistent with a change toward a slender body shape. Trends in adult weight were nonlinear, with rates accelerating to an average decline of up to 25% decade-1 during the last two decades. We found a strong association between higher anchovy abundance and reduced juvenile size. The effect of density dependence was less clear later in life, and temperature became the best predictor of declines in adult size. Theoretical analyses based on a strategic model further suggested that observed patterns are consistent with a simultaneous, opposing effect of rising temperatures on accelerating early growth and decreasing adult size as predicted by the temperature-size rule. Macroecological assessment of ecogeographical-Bergmann's and James'-rules in anchovy size suggested that the observed decline largely exceeds intraspecific variation and might be the result of selection. Limitations inherent in the observational nature of the study recommend caution and a continued assessment and exploration of alternative drivers. Additional evidence of a climate-driven regime shift in the region suggests, however, that shrinking anchovy sizes may signal a long-lasting change in the structure and functioning of the Bay of Biscay ecosystem.
Collapse
Affiliation(s)
- Fernando G Taboada
- AZTI Marine Research, Basque Research and Technology Alliance (BRTA), Sukarrieta, Spain
| | - Guillem Chust
- AZTI Marine Research, Basque Research and Technology Alliance (BRTA), Sukarrieta, Spain
| | - María Santos Mocoroa
- AZTI Marine Research, Basque Research and Technology Alliance (BRTA), Sukarrieta, Spain
| | - Naroa Aldanondo
- AZTI Marine Research, Basque Research and Technology Alliance (BRTA), Sukarrieta, Spain
| | - Almudena Fontán
- AZTI Marine Research, Basque Research and Technology Alliance (BRTA), Sukarrieta, Spain
| | - Unai Cotano
- AZTI Marine Research, Basque Research and Technology Alliance (BRTA), Sukarrieta, Spain
| | - Paula Álvarez
- AZTI Marine Research, Basque Research and Technology Alliance (BRTA), Sukarrieta, Spain
| | | | - Xabier Irigoien
- AZTI Marine Research, Basque Research and Technology Alliance (BRTA), Sukarrieta, Spain
| | | | - Guillermo Boyra
- AZTI Marine Research, Basque Research and Technology Alliance (BRTA), Sukarrieta, Spain
| | - Andrés Uriarte
- AZTI Marine Research, Basque Research and Technology Alliance (BRTA), Sukarrieta, Spain
| | - Leire Ibaibarriaga
- AZTI Marine Research, Basque Research and Technology Alliance (BRTA), Sukarrieta, Spain
| |
Collapse
|
39
|
Espin A, Núñez-Cortés R, Irazusta J, Rodriguez-Larrad A, Torres-Unda J, Vinstrup J, Jakobsen MD, Andersen LL. Mental health and vitality predict spinal pain in healthcare workers. Occup Med (Lond) 2023; 73:464-469. [PMID: 37665779 DOI: 10.1093/occmed/kqad096] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/06/2023] Open
Abstract
BACKGROUND Despite extensive investigation of ergonomic risk factors for spinal pain in healthcare workers, limited knowledge of psychological risk factors exists. AIMS To assess the prospective association of mental health and vitality with development of spinal pain in healthcare workers. METHODS A prospective cohort study was carried out involving 1950 healthcare workers from 19 hospitals in Denmark. Assessments were done at baseline and at 1-year follow-up. Mental health and vitality were measured using the Short Form-36 Health Survey, while spinal pain intensity was measured using a 0-10 scale in the low-back, upper-back and neck, respectively. Cumulative logistic regressions adjusted for several confounding factors were applied, reporting risk estimates as odds ratios (ORs) and 95% confidence intervals (CIs). RESULTS Using good mental health as reference, moderate (but not poor) mental health at baseline was associated with increased pain intensity in the low-back (OR: 1.41 [95% CI: 1.21-1.77]), upper-back (OR: 1.63 [95% CI: 1.31-2.02]) and neck (OR: 1.31 [95% CI: 1.07-1.61]) at 1-year follow-up. Likewise, using high vitality as reference, both moderate and low vitality at baseline were associated with increased pain intensity in the low-back (OR: 1.54 [95% CI: 1.22-1.94] and OR: 2.34 [95% CI: 1.75-3.12], respectively), upper-back (OR: 1.72 [95% CI: 1.34-2.23] and OR: 2.46 [95% CI: 1.86-3.25], respectively) and neck (OR: 1.66 [95% CI: 1.34-2.06] and OR: 2.06 [95% CI: 1.61-2.63], respectively) at 1-year follow-up. CONCLUSIONS Compared to healthcare workers with good mental health and high vitality, those with moderate mental health and low/moderate vitality, respectively, were more likely to increase spinal pain intensity at 1-year follow-up. These components should also be considered in the prevention of spinal pain in healthcare workers.
Collapse
Affiliation(s)
- A Espin
- Department of Musculoskeletal Disorders, National Research Centre for the Working Environment, 2100 Copenhagen, Denmark
- Ageing on Research Group, Department of Physiology, University of the Basque Country (UPV/EHU), 48940 Leioa, Spain
- Clinical Nursing and Community Health Research Group, Biocruces Bizkaia Health Research Institute, 48903 Barakaldo, Spain
| | - R Núñez-Cortés
- Department of Musculoskeletal Disorders, National Research Centre for the Working Environment, 2100 Copenhagen, Denmark
- Physiotherapy in Motion Multispeciality Research Group (PTinMOTION), Department of Physiotherapy, University of Valencia, 46010 Valencia, Spain
- Department of Physical Therapy, Faculty of Medicine, University of Chile, 8380000 Santiago, Chile
| | - J Irazusta
- Ageing on Research Group, Department of Physiology, University of the Basque Country (UPV/EHU), 48940 Leioa, Spain
- Clinical Nursing and Community Health Research Group, Biocruces Bizkaia Health Research Institute, 48903 Barakaldo, Spain
| | - A Rodriguez-Larrad
- Ageing on Research Group, Department of Physiology, University of the Basque Country (UPV/EHU), 48940 Leioa, Spain
- Clinical Nursing and Community Health Research Group, Biocruces Bizkaia Health Research Institute, 48903 Barakaldo, Spain
| | - J Torres-Unda
- Ageing on Research Group, Department of Physiology, University of the Basque Country (UPV/EHU), 48940 Leioa, Spain
| | - J Vinstrup
- Department of Musculoskeletal Disorders, National Research Centre for the Working Environment, 2100 Copenhagen, Denmark
| | - M D Jakobsen
- Department of Musculoskeletal Disorders, National Research Centre for the Working Environment, 2100 Copenhagen, Denmark
| | - L L Andersen
- Department of Musculoskeletal Disorders, National Research Centre for the Working Environment, 2100 Copenhagen, Denmark
| |
Collapse
|
40
|
Teijido R, Zhang Q, Blanco M, Pérez-Álvarez L, Lanceros-Méndez S, Vilas-Vilela JL, Ruiz-Rubio L. Graphene-Enhanced Methacrylated Alginate Gel Films for Sustainable Dye Removal in Water Purification. Gels 2023; 10:25. [PMID: 38247748 PMCID: PMC10815123 DOI: 10.3390/gels10010025] [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: 11/20/2023] [Revised: 12/24/2023] [Accepted: 12/26/2023] [Indexed: 01/23/2024] Open
Abstract
Self-standing nanocomposite films were prepared by three-dimensional UV-induced radical copolymerization of methacrylated alginate (MALG) with acrylic acid (AA) and reinforced with graphene oxide (GO) to improve both mechanical strength and dye adsorption capacity in wastewater decontamination operations. Dynamic mechanical-thermal analysis revealed variations in storage modulus: the higher the GO content, the higher the storage modulus (E') values. Also, the higher the temperature (associated with a lower and lower water content of films), the larger values of E' for the films of the same composition (E'(25 °C) = 676.6-1538.7 MPa; E'(100 °C) = 886.9-2066.6 MPa), providing insights into the compatibility between GO and the MALG/AA matrix, as well as, assessing the improvement in the nanocomposite's final mechanical properties. These crosslinked films in a dry state exhibited rapid water uptake and relatively short drying times (ca. 30 min at room temperature for the MALG/AA/GO composites) resulting from the swelling-drying studies and water contact angle measurements. The efficacy of methylene blue removal from water assessed via UV-VIS spectrometry revealed excellent results, expressed as an adsorption yield of 70-80% and 85-98% after 30 h and 258 h, respectively, of immersion time of films into an MB aqueous solution of 12.5 mg/L (as the contaminated water model). The reusability of the same films was evaluated by consecutive extraction processes of MB from the composite membranes when the content of desorbed dye was also spectrophotometrically monitored and conducted in acidic conditions (HCl aqueous solutions of pH 2). Overall, the introduction of GO in the developed self-standing MALG/AA nanocomposite films exhibited enhanced mechanical properties and increased efficiency for dye removal applications. Their great reutilization potential was highlighted by low drying times and a good ability to release the dye initially adsorbed. Thus, the prepared films could be suitable materials for sustainable and effective water treatment technologies.
Collapse
Affiliation(s)
- Rubén Teijido
- Macromolecular Chemistry Group (LQM), Physical Chemistry Department, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), 48940 Leioa, Spain; (R.T.); (L.P.-Á.)
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain; (Q.Z.); (S.L.-M.)
| | - Qi Zhang
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain; (Q.Z.); (S.L.-M.)
| | - Miren Blanco
- Tekniker, Basque Research and Technology Alliance (BRTA), 20600 Eibar, Spain;
| | - Leyre Pérez-Álvarez
- Macromolecular Chemistry Group (LQM), Physical Chemistry Department, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), 48940 Leioa, Spain; (R.T.); (L.P.-Á.)
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain; (Q.Z.); (S.L.-M.)
| | - Senentxu Lanceros-Méndez
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain; (Q.Z.); (S.L.-M.)
| | - José Luis Vilas-Vilela
- Macromolecular Chemistry Group (LQM), Physical Chemistry Department, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), 48940 Leioa, Spain; (R.T.); (L.P.-Á.)
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain; (Q.Z.); (S.L.-M.)
| | - Leire Ruiz-Rubio
- Macromolecular Chemistry Group (LQM), Physical Chemistry Department, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), 48940 Leioa, Spain; (R.T.); (L.P.-Á.)
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain; (Q.Z.); (S.L.-M.)
| |
Collapse
|
41
|
Russo P, Diez-Ozaeta I, Mangieri N, Tamame M, Spano G, Dueñas MT, López P, Mohedano ML. Biotechnological Potential and Safety Evaluation of Dextran- and Riboflavin-Producing Weisella cibaria Strains for Gluten-Free Baking. Foods 2023; 13:69. [PMID: 38201097 PMCID: PMC10778100 DOI: 10.3390/foods13010069] [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: 11/30/2023] [Revised: 12/20/2023] [Accepted: 12/22/2023] [Indexed: 01/12/2024] Open
Abstract
Gluten consumption causes several immunological and non-immunological intolerances in susceptible individuals. In this study, the dextran-producing Weissella cibaria BAL3C-5 and its derivative, the riboflavin-overproducing strain BAL3C-5 C120T, together with a commercial bakery yeast, were used to ferment gluten-free (GF)-doughs obtained from corn and rice flours at two different concentrations and supplemented with either quinoa, buckwheat, or chickpea to obtain laboratory-scale GF bread. The levels of dextran, riboflavin, and total flavins were determined in the fermented and breads. Both strains grew in fermented doughs and contributed dextran, especially to those made with corn plus quinoa (~1 g/100 g). The highest riboflavin (350-150 µg/100 g) and total flavin (2.3-1.75 mg/100 g) levels were observed with BAL3C-5 C120T, though some differences were detected between the various doughs or breads, suggesting an impact of the type of flour used. The safety assessment confirmed the lack of pathogenic factors in the bacterial strains, such as hemolysin and gelatinase activity, as well as the genetic determinants for biogenic amine production. Some intrinsic resistance to antibiotics, including vancomycin and kanamycin, was found. These results indicated the microbiological safety of both W. cibaria strains and indicated their potential application in baking to produce GF bread.
Collapse
Affiliation(s)
- Pasquale Russo
- Department of Food Environmental and Nutritional Sciences (DeFENS), University of Milan, 20133 Milan, Italy; (P.R.); (N.M.)
| | - Iñaki Diez-Ozaeta
- Departamento de Biotecnología Microbiana y de Plantas, Centro de Investigaciones Biológicas Margarita Salas (CSIC), 28040 Madrid, Spain; (I.D.-O.); (P.L.)
- Departamento de Química Aplicada, Facultad de Química, Universidad del País Vasco (UPV/EHU), 20018 San Sebastián, Spain;
| | - Nicola Mangieri
- Department of Food Environmental and Nutritional Sciences (DeFENS), University of Milan, 20133 Milan, Italy; (P.R.); (N.M.)
| | - Mercedes Tamame
- Instituto de Biología Funcional y Genómica (IBFG), CSIC-Universidad de Salamanca, 37007 Salamanca, Spain;
| | - Giuseppe Spano
- DAFNE Department, University of Foggia, 71122 Foggia, Italy;
| | - Maria Teresa Dueñas
- Departamento de Química Aplicada, Facultad de Química, Universidad del País Vasco (UPV/EHU), 20018 San Sebastián, Spain;
| | - Paloma López
- Departamento de Biotecnología Microbiana y de Plantas, Centro de Investigaciones Biológicas Margarita Salas (CSIC), 28040 Madrid, Spain; (I.D.-O.); (P.L.)
| | - Mari Luz Mohedano
- Departamento de Biotecnología Microbiana y de Plantas, Centro de Investigaciones Biológicas Margarita Salas (CSIC), 28040 Madrid, Spain; (I.D.-O.); (P.L.)
| |
Collapse
|
42
|
Perez-Barcenilla S, Cearsolo X, Aramburu A, Castano-Alvarez R, Castillo JR, Gayoso Lopez J. Applicability of a Material Constitutive Model Based on a Transversely Isotropic Behaviour for the Prediction of the Mechanical Performance of Multi Jet Fusion Printed Polyamide 12 Parts. Polymers (Basel) 2023; 16:56. [PMID: 38201721 PMCID: PMC10780423 DOI: 10.3390/polym16010056] [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: 11/27/2023] [Revised: 12/19/2023] [Accepted: 12/21/2023] [Indexed: 01/12/2024] Open
Abstract
Multi Jet Fusion (MJF), an innovative additive manufacturing (AM) technique in the field of Powder Bed Fusion (PBF) developed by Hewlett-Packard (HP) Inc. (Palo Alto, CA, USA), has been designed to produce polymer parts using thermoplastic-based powders, primarily focusing on polyamide 12 (PA12). Employing a layer-by-layer approach, MJF enables the rapid production of intricate components, reportedly up to 10 times faster than other AM processes. While the mechanical properties of MJF-printed PA12 and the impact of build orientation on those properties have already been explored in various studies, less attention has been given to the mechanical performance of MJF-printed PA12 components under complex loads and accurate predictive models. This contribution aims to assess the applicability of a constitutive model based on a transversely isotropic behaviour under linear elastic deformation for predicting the mechanical response of MJF-printed PA12 parts through numerical simulations. Both uniaxial tensile and shear tests were carried out on printed samples to determine the elastic properties of MJF-printed PA12, with additional testing on printed complex handle-shaped parts. Finally, a numerical model was developed to simulate the mechanical tests of the handles. Results from tests on printed samples showed that MJF-printed PA12, to some extent, behaves as a transversely isotropic material. Furthermore, using a constitutive model that assumes a transversely isotropic behaviour under linear elastic deformation for predicting the mechanical response of MJF-printed PA12 parts in numerical simulations could be a reasonable approach, provided that the material stress levels remain within the linear range. However, the particularities of the stress-strain curve of MJF-printed PA12 complicate determining the elasticity-to-plasticity transition point.
Collapse
Affiliation(s)
- Sergio Perez-Barcenilla
- TECNALIA, Basque Research and Technology Alliance (BRTA), Astondo Bidea, Edificio 700, 48160 Derio, Spain;
| | - Xabier Cearsolo
- IMH Campus, Azkue Auzoa 1, 20870 Elgoibar, Spain; (X.C.); (J.R.C.)
| | - Amaia Aramburu
- TECNALIA, Basque Research and Technology Alliance (BRTA), Mikeletegi Pasealekua 2, 20009 Donostia-San Sebastián, Spain; (A.A.); (J.G.L.)
| | - Ruben Castano-Alvarez
- TECNALIA, Basque Research and Technology Alliance (BRTA), Astondo Bidea, Edificio 700, 48160 Derio, Spain;
| | - Juan R. Castillo
- IMH Campus, Azkue Auzoa 1, 20870 Elgoibar, Spain; (X.C.); (J.R.C.)
| | - Jorge Gayoso Lopez
- TECNALIA, Basque Research and Technology Alliance (BRTA), Mikeletegi Pasealekua 2, 20009 Donostia-San Sebastián, Spain; (A.A.); (J.G.L.)
| |
Collapse
|
43
|
Melcón-Fernandez E, Martín-Encinas E, Palacios F, Galli G, Reguera RM, Martínez-Valladares M, Balaña-Fouce R, Alonso C, Pérez-Pertejo Y. Antileishmanial Effect of 1,5- and 1,8-Substituted Fused Naphthyridines. Molecules 2023; 29:74. [PMID: 38202656 PMCID: PMC10780244 DOI: 10.3390/molecules29010074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Revised: 12/18/2023] [Accepted: 12/20/2023] [Indexed: 01/12/2024] Open
Abstract
In the absence of a vaccine, there is a need to find new drugs for the treatment of neglected tropical diseases, such as leishmaniasis, that can overcome the many drawbacks of those currently used. These disadvantages include cost, the need to maintain a cold chain, the route of administration, the associated adverse effects and the generation of resistance. In this work we have evaluated the antileishmanial effect of 1,5- and 1,8-substituted fused naphthyridines through in vitro and ex vivo assays, using genetically modified axenic and intramacrophagic Leishmania infantum amastigotes. The toxicity of these compounds has been tested in the mammalian host cell using murine splenic macrophages, as well as in murine intestinal organoids (miniguts) in order to assess their potential for oral administration. The 1,8- derivatives showed greater leishmanicidal activity and the presence of a nitrogen atom in the fused ring to the naphthyridine was important to increase the activity of both types of molecules. The aromatization of the pyridine ring also had marked differences in the activity of the compounds.
Collapse
Affiliation(s)
- Estela Melcón-Fernandez
- Departamento de Ciencias Biomédicas, Facultad de Veterinaria, Universidad de León, Campus de Vegazana s/n, 24071 León, Spain (G.G.)
| | - Endika Martín-Encinas
- Departamento de Química Orgánica I, Facultad de Farmacia, Lascaray Research Center, Universidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU), Paseo de la Universidad 7, 01006 Vitoria-Gasteiz, Spain
| | - Francisco Palacios
- Departamento de Química Orgánica I, Facultad de Farmacia, Lascaray Research Center, Universidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU), Paseo de la Universidad 7, 01006 Vitoria-Gasteiz, Spain
| | - Gulio Galli
- Departamento de Ciencias Biomédicas, Facultad de Veterinaria, Universidad de León, Campus de Vegazana s/n, 24071 León, Spain (G.G.)
| | - Rosa M. Reguera
- Departamento de Ciencias Biomédicas, Facultad de Veterinaria, Universidad de León, Campus de Vegazana s/n, 24071 León, Spain (G.G.)
| | - María Martínez-Valladares
- Departamento de Ciencias Biomédicas, Facultad de Veterinaria, Universidad de León, Campus de Vegazana s/n, 24071 León, Spain (G.G.)
| | - Rafael Balaña-Fouce
- Departamento de Ciencias Biomédicas, Facultad de Veterinaria, Universidad de León, Campus de Vegazana s/n, 24071 León, Spain (G.G.)
| | - Concepción Alonso
- Departamento de Química Orgánica I, Facultad de Farmacia, Lascaray Research Center, Universidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU), Paseo de la Universidad 7, 01006 Vitoria-Gasteiz, Spain
| | - Yolanda Pérez-Pertejo
- Departamento de Ciencias Biomédicas, Facultad de Veterinaria, Universidad de León, Campus de Vegazana s/n, 24071 León, Spain (G.G.)
| |
Collapse
|
44
|
Laruelle A, Manini C, López JI, Rocha A. Early Evolution in Cancer: A Mathematical Support for Pathological and Genomic Evidence in Clear Cell Renal Cell Carcinoma. Cancers (Basel) 2023; 15:5897. [PMID: 38136439 PMCID: PMC10742011 DOI: 10.3390/cancers15245897] [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: 10/06/2023] [Revised: 11/01/2023] [Accepted: 12/12/2023] [Indexed: 12/24/2023] Open
Abstract
Clear cell renal cell carcinoma (CCRCC) is an aggressive form of cancer and a paradigmatic example of intratumor heterogeneity (ITH). The hawk-dove game is a mathematical tool designed to analyze competition in biological systems. Using this game, the study reported here analyzes the early phase of CCRCC development, comparing clonal fitness in homogeneous (linear evolutionary) and highly heterogeneous (branching evolutionary) models. Fitness in the analysis is a measure of tumor aggressiveness. The results show that the fittest clone in a heterogeneous environment is fitter than the clone in a homogeneous context in the early phases of tumor evolution. Early and late periods of tumor evolution in CCRCC are also compared. The study shows the convergence of mathematical, histological, and genomics studies with respect to clonal aggressiveness in different periods of the natural history of CCRCC. Such convergence highlights the importance of multidisciplinary approaches for obtaining a better understanding of the intricacies of cancer.
Collapse
Affiliation(s)
- Annick Laruelle
- Department of Economic Analysis, University of the Basque Country (UPV/EHU), 48015 Bilbao, Spain
- IKERBASQUE, Basque Foundation for Science, 48011 Bilbao, Spain
| | - Claudia Manini
- Department of Pathology, San Giovanni Bosco Hospital, ASL Città di Torino, 10154 Turin, Italy;
- Department of Sciences of Public Health and Pediatrics, University of Turin, 10124 Turin, Italy
| | - José I. López
- Biomarkers in Cancer, Biocruces-Bizkaia Health Research Institute, 48903 Barakaldo, Spain;
| | - André Rocha
- Department of Industrial Engineering, Pontifical Catholic University of Rio de Janeiro, Rio de Janeiro CEP22451-900, Brazil;
| |
Collapse
|
45
|
Martín-Llorente A, Serrano M, Bonilla-Del Río I, Lekunberri L, Ocerin G, Puente N, Ramos A, Rico-Barrio I, Gerrikagoitia I, Grandes P. Omega-3 Recovers Cannabinoid 1 Receptor Expression in the Adult Mouse Brain after Adolescent Binge Drinking. Int J Mol Sci 2023; 24:17316. [PMID: 38139145 PMCID: PMC10744058 DOI: 10.3390/ijms242417316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 12/07/2023] [Accepted: 12/08/2023] [Indexed: 12/24/2023] Open
Abstract
Adolescent binge drinking is a social problem with a long-lasting impact on cognitive functions. The cannabinoid type-1 (CB1) receptor of the endocannabinoid system (ECS) is involved in brain synaptic plasticity, cognition and behavior via receptor localization at specific subcellular compartments of the cortical, limbic and motor regions. Alcohol (EtOH) intake affects the ECS, CB1 and their functions. Evidence indicates that binge drinking during adolescence impairs memory via the abrogation of CB1-dependent synaptic plasticity in the hippocampus. However, the impact of EtOH consumption on global CB1 receptor expression in the adult brain is unknown. We studied this using optical density analysis throughout brain regions processed for light microscopy (LM) immunohistotochemistry. CB1 staining decreased significantly in the secondary motor cortex, cerebellum, cingulate cortex, amygdala and nucleus accumbens. Next, as omega-3 (n-3) polyunsaturated fatty acids (PUFAs) rescue synaptic plasticity and improve EtOH-impaired cognition, we investigated whether docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA) had any effect on CB1 receptors. N-3 intake during EtOH abstinence restored CB1 immunostaining in the secondary motor cortex, cerebellum and amygdala, and ameliorated receptor density in the cingulate cortex. These results show that n-3 supplementation recovers CB1 receptor expression disrupted by EtOH in distinct brain regions involved in motor functions and cognition.
Collapse
Affiliation(s)
- Ane Martín-Llorente
- Laboratory of Ultrastructural and Functional Neuroanatomy of the Synapse, Department of Neurosciences, Faculty of Medicine and Nursing, University of the Basque Country UPV/EHU, 48940 Leioa, Spain; (A.M.-L.); (M.S.); (I.B.-D.R.); (L.L.); (G.O.); (N.P.); (A.R.); (I.R.-B.)
| | - Maitane Serrano
- Laboratory of Ultrastructural and Functional Neuroanatomy of the Synapse, Department of Neurosciences, Faculty of Medicine and Nursing, University of the Basque Country UPV/EHU, 48940 Leioa, Spain; (A.M.-L.); (M.S.); (I.B.-D.R.); (L.L.); (G.O.); (N.P.); (A.R.); (I.R.-B.)
- Achucarro Basque Center for Neuroscience, Science Park of the UPV/EHU, 48940 Leioa, Spain
| | - Itziar Bonilla-Del Río
- Laboratory of Ultrastructural and Functional Neuroanatomy of the Synapse, Department of Neurosciences, Faculty of Medicine and Nursing, University of the Basque Country UPV/EHU, 48940 Leioa, Spain; (A.M.-L.); (M.S.); (I.B.-D.R.); (L.L.); (G.O.); (N.P.); (A.R.); (I.R.-B.)
- Achucarro Basque Center for Neuroscience, Science Park of the UPV/EHU, 48940 Leioa, Spain
| | - Leire Lekunberri
- Laboratory of Ultrastructural and Functional Neuroanatomy of the Synapse, Department of Neurosciences, Faculty of Medicine and Nursing, University of the Basque Country UPV/EHU, 48940 Leioa, Spain; (A.M.-L.); (M.S.); (I.B.-D.R.); (L.L.); (G.O.); (N.P.); (A.R.); (I.R.-B.)
- Achucarro Basque Center for Neuroscience, Science Park of the UPV/EHU, 48940 Leioa, Spain
| | - Garazi Ocerin
- Laboratory of Ultrastructural and Functional Neuroanatomy of the Synapse, Department of Neurosciences, Faculty of Medicine and Nursing, University of the Basque Country UPV/EHU, 48940 Leioa, Spain; (A.M.-L.); (M.S.); (I.B.-D.R.); (L.L.); (G.O.); (N.P.); (A.R.); (I.R.-B.)
- Achucarro Basque Center for Neuroscience, Science Park of the UPV/EHU, 48940 Leioa, Spain
| | - Nagore Puente
- Laboratory of Ultrastructural and Functional Neuroanatomy of the Synapse, Department of Neurosciences, Faculty of Medicine and Nursing, University of the Basque Country UPV/EHU, 48940 Leioa, Spain; (A.M.-L.); (M.S.); (I.B.-D.R.); (L.L.); (G.O.); (N.P.); (A.R.); (I.R.-B.)
- Achucarro Basque Center for Neuroscience, Science Park of the UPV/EHU, 48940 Leioa, Spain
| | - Almudena Ramos
- Laboratory of Ultrastructural and Functional Neuroanatomy of the Synapse, Department of Neurosciences, Faculty of Medicine and Nursing, University of the Basque Country UPV/EHU, 48940 Leioa, Spain; (A.M.-L.); (M.S.); (I.B.-D.R.); (L.L.); (G.O.); (N.P.); (A.R.); (I.R.-B.)
- Achucarro Basque Center for Neuroscience, Science Park of the UPV/EHU, 48940 Leioa, Spain
| | - Irantzu Rico-Barrio
- Laboratory of Ultrastructural and Functional Neuroanatomy of the Synapse, Department of Neurosciences, Faculty of Medicine and Nursing, University of the Basque Country UPV/EHU, 48940 Leioa, Spain; (A.M.-L.); (M.S.); (I.B.-D.R.); (L.L.); (G.O.); (N.P.); (A.R.); (I.R.-B.)
- Achucarro Basque Center for Neuroscience, Science Park of the UPV/EHU, 48940 Leioa, Spain
| | - Inmaculada Gerrikagoitia
- Laboratory of Ultrastructural and Functional Neuroanatomy of the Synapse, Department of Neurosciences, Faculty of Medicine and Nursing, University of the Basque Country UPV/EHU, 48940 Leioa, Spain; (A.M.-L.); (M.S.); (I.B.-D.R.); (L.L.); (G.O.); (N.P.); (A.R.); (I.R.-B.)
- Achucarro Basque Center for Neuroscience, Science Park of the UPV/EHU, 48940 Leioa, Spain
| | - Pedro Grandes
- Laboratory of Ultrastructural and Functional Neuroanatomy of the Synapse, Department of Neurosciences, Faculty of Medicine and Nursing, University of the Basque Country UPV/EHU, 48940 Leioa, Spain; (A.M.-L.); (M.S.); (I.B.-D.R.); (L.L.); (G.O.); (N.P.); (A.R.); (I.R.-B.)
- Achucarro Basque Center for Neuroscience, Science Park of the UPV/EHU, 48940 Leioa, Spain
| |
Collapse
|
46
|
Del-Río L, Nó ML, Gómez R, García-Sesma L, Urionabarrenetxea E, Ortega P, Mancisidor AM, San Sebastian M, Burgos N, San Juan JM. Additive Manufacturing of Fe-Mn-Si-Based Shape Memory Alloys: State of the Art, Challenges and Opportunities. Materials (Basel) 2023; 16:7517. [PMID: 38138661 PMCID: PMC10744529 DOI: 10.3390/ma16247517] [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: 11/17/2023] [Revised: 11/30/2023] [Accepted: 12/01/2023] [Indexed: 12/24/2023]
Abstract
Additive manufacturing (AM) constitutes the new paradigm in materials processing and its use on metals and alloys opens new unforeseen possibilities, but is facing several challenges regarding the design of the microstructure, which is particularly awkward in the case of functional materials, like shape memory alloys (SMA), as they require a robust microstructure to withstand the constraints appearing during their shape change. In the present work, the attention is focused on the AM of the important Fe-Mn-Si-based SMA family, which is attracting a great technological interest in many industrial sectors. Initially, an overview on the design concepts of this SMA family is offered, with special emphasis to the problems arising during AM. Then, such concepts are considered in order to experimentally develop the AM production of the Fe-20Mn-6Si-9Cr-5Ni (wt%) SMA through laser powder bed fusion (LPBF). The complete methodology is approached, from the gas atomization of powders to the LPBF production and the final thermal treatments to functionalize the SMA. The microstructure is characterized by scanning and transmission electron microscopy after each step of the processing route. The reversibility of the ε martensitic transformation and its evolution on cycling are studied by internal friction and electron microscopy. An outstanding 14% of fully reversible thermal transformation of ε martensite is obtained. The present results show that, in spite of the still remaining challenges, AM by LPBF offers a good approach to produce this family of Fe-Mn-Si-based SMA, opening new opportunities for its applications.
Collapse
Affiliation(s)
- Lucia Del-Río
- Department of Physics, Faculty of Science and Technology, University of the Basque Country, UPV/EHU, P.O. Box 644, 48080 Bilbao, Spain; (L.D.-R.); (M.L.N.)
| | - Maria L. Nó
- Department of Physics, Faculty of Science and Technology, University of the Basque Country, UPV/EHU, P.O. Box 644, 48080 Bilbao, Spain; (L.D.-R.); (M.L.N.)
| | - Raul Gómez
- LORTEK-Basque Research Technology Alliance, BRTA, Arranomendia Kalea 4A, 20240 Ordizia, Spain (L.G.-S.)
| | - Leire García-Sesma
- LORTEK-Basque Research Technology Alliance, BRTA, Arranomendia Kalea 4A, 20240 Ordizia, Spain (L.G.-S.)
| | - Ernesto Urionabarrenetxea
- CEIT-Basque Research Technology Alliance, BRTA, Manuel de Lardizabal 15, 20018 Donostia-San Sebastian, Spain (P.O.); (N.B.)
- Universidad de Navarra, Tecnun, Manuel de Lardizabal 13, 20018 Donostia-San Sebastian, Spain
| | - Pablo Ortega
- CEIT-Basque Research Technology Alliance, BRTA, Manuel de Lardizabal 15, 20018 Donostia-San Sebastian, Spain (P.O.); (N.B.)
- Universidad de Navarra, Tecnun, Manuel de Lardizabal 13, 20018 Donostia-San Sebastian, Spain
| | - Ane M. Mancisidor
- LORTEK-Basque Research Technology Alliance, BRTA, Arranomendia Kalea 4A, 20240 Ordizia, Spain (L.G.-S.)
| | - Maria San Sebastian
- LORTEK-Basque Research Technology Alliance, BRTA, Arranomendia Kalea 4A, 20240 Ordizia, Spain (L.G.-S.)
| | - Nerea Burgos
- CEIT-Basque Research Technology Alliance, BRTA, Manuel de Lardizabal 15, 20018 Donostia-San Sebastian, Spain (P.O.); (N.B.)
- Universidad de Navarra, Tecnun, Manuel de Lardizabal 13, 20018 Donostia-San Sebastian, Spain
| | - Jose M. San Juan
- Department of Physics, Faculty of Science and Technology, University of the Basque Country, UPV/EHU, P.O. Box 644, 48080 Bilbao, Spain; (L.D.-R.); (M.L.N.)
| |
Collapse
|
47
|
Esnaola A, Larrañaga A, González-Esteban J, Elosegi A, Aihartza J. Using biological traits to assess diet selection: the case of the Pyrenean Desman. J Mammal 2023; 104:1205-1215. [PMID: 38059010 PMCID: PMC10697428 DOI: 10.1093/jmammal/gyad061] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Accepted: 05/13/2023] [Indexed: 12/08/2023] Open
Abstract
Traditionally, researchers have assessed diet selection by comparing consumed versus available taxa. However, taxonomic assignment is probably irrelevant for predators, who likely base their selection on characteristics including prey size, habitat, or behavior. Here, we use an aquatic insectivore, the threatened Pyrenean Desman (Galemys pyrenaicus), as a model species to assess whether biological traits help unravel the criteria driving food and habitat preferences. We reanalyzed data from a previous taxonomy-based study of prey selection in two contrasting streams, one with excellent conservation status and the other affected by diversion for hydropower and forestry. Available and consumed prey were characterized according to nine biological traits, and diet selection was estimated by comparing availability-measured from Surber net samples, and consumption-analyzed by metabarcoding desman feces. Traits offered a biologically coherent image of diet and almost identical selection patterns in both streams, depicting a highly specialized rheophilic predator. Desmans positively selected prey with a preference for fast flow and boulder substrate, indicating their preferred riffle habitat. On the other hand, they positively selected prey with larger but not the largest potential size, living in the water column or the litter, and not inside sediments. They also chose agile prey, swimmers or prey attached to the substrate, prey with high body flexibility, and prey living exposed and clustered in groups. Overall, our results offer a picture of desman diet preference and point to biological traits as being better than taxonomic identity to describe the diet preference of consumers.
Collapse
Affiliation(s)
- Amaiur Esnaola
- Department of Zoology and Animal Cell Biology, University of the Basque Country UPV/EHU, Leioa, the Basque Country 48940, Spain
- EKOLUR Asesoría Ambiental – Ingurumen Aholkularitza S.L.L., Oiartzun, the Basque Country 20180, Spain
| | - Aitor Larrañaga
- Department of Plant Biology and Ecology, University of the Basque Country UPV/EHU, Leioa, the Basque Country 48940, Spain
| | | | - Arturo Elosegi
- Department of Plant Biology and Ecology, University of the Basque Country UPV/EHU, Leioa, the Basque Country 48940, Spain
| | - Joxerra Aihartza
- Department of Zoology and Animal Cell Biology, University of the Basque Country UPV/EHU, Leioa, the Basque Country 48940, Spain
| |
Collapse
|
48
|
Garbisu C, Alkorta I. A case for the importance of following antibiotic resistant bacteria throughout the soil food web. Bioessays 2023; 45:e2300153. [PMID: 37987191 DOI: 10.1002/bies.202300153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 09/17/2023] [Accepted: 10/04/2023] [Indexed: 11/22/2023]
Abstract
It is necessary to complement next-generation sequencing data on the soil resistome with theoretical knowledge provided by ecological studies regarding the spread of antibiotic resistant bacteria (ARB) in the abiotic and, especially, biotic fraction of the soil ecosystem. Particularly, when ARB enter agricultural soils as a consequence of the application of animal manure as fertilizer, from a microbial ecology perspective, it is important to know their fate along the soil food web, that is, throughout that complex network of feeding interactions among members of the soil biota that has crucial effects on species richness and ecosystem productivity and stability. It is critical to study how the ARB that enter the soil through the application of manure can reach other taxonomical groups (e.g., fungi, protists, nematodes, arthropods, earthworms), paying special attention to their presence in the gut microbiomes of mesofauna-macrofauna and to the possibilities for horizontal gene transfer of antibiotic resistant genes.
Collapse
Affiliation(s)
- Carlos Garbisu
- NEIKER - Basque Institute for Agricultural Research and Development, Derio, Spain
| | - Itziar Alkorta
- Department of Biochemistry and Molecular Biology, University of the Basque Country (UPV/EHU), Bilbao, Spain
| |
Collapse
|
49
|
Tubio CR, Valle X, Carvalho E, Moreira J, Costa P, Correia DM, Lanceros-Mendez S. Poly(3-hydroxybutyrate- co-3-hydroxyvalerate) Blends with Poly(caprolactone) and Poly(lactic acid): A Comparative Study. Polymers (Basel) 2023; 15:4566. [PMID: 38232003 PMCID: PMC10708000 DOI: 10.3390/polym15234566] [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: 10/11/2023] [Revised: 11/13/2023] [Accepted: 11/27/2023] [Indexed: 01/19/2024] Open
Abstract
Poly(hydroxybutyrate-co-hidroxyvalerate) (PHBV) is a biodegradable polymer, which is a potential substitute for plastics made from fossil resources. Due to its practical interest in the field of tissue engineering, packaging, sensors, and electronic devices, the demand for PHBV with specific thermal, electrical, as well as mechanical requirements is growing. In order to improve these properties, we have developed PHBV blends with two thermoplastic biodegradable polyesters, including poly(caprolactone) (PCL) and poly(lactic acid) (PLA). We analysed the effect of these biopolymers on the morphological, wetting, structural, thermal, mechanical, and electrical characteristics of the materials. Further, the biodegradation of the samples in simulated body fluid conditions was evaluated, as well as the antibacterial activity. The results demonstrate that the blending with PCL and PLA leads to films with a dense morphology, increases the hydrophilic character, and induces a reinforcement of the mechanical characteristics with respect to pristine PHBV. In addition, a decrease in dielectric constant and a.c. electrical conductivity was noticed for PHBV/PLA and PHBV/PCL blends compared to neat PHBV polymer. All neat polymers and blends showed antibacterial properties against S. aureus, with more than 40% bacterial reduction, which increased to 72% in the presence of PCL polymer for a blend ratio of 50/50. Thus, it is demonstrated a suitable way to further tailor a variety of functionalities of PHBV for specific applications, by the development of polymer blends with PLA or PCL.
Collapse
Affiliation(s)
- Carmen R. Tubio
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain; (X.V.); (S.L.-M.)
| | - Xabier Valle
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain; (X.V.); (S.L.-M.)
| | - Estela Carvalho
- Physics Center of Minho and Porto Universities (CF-UM-UP) and LaPMET—Laboratory of Physics for Materials and Emergent Technologies, University of Minho, 4710-057 Braga, Portugal; (E.C.); (J.M.); (P.C.)
- Institute of Science and Innovation for Bio-Sustainability (IB-S), University of Minho, 4710-057 Braga, Portugal
| | - Joana Moreira
- Physics Center of Minho and Porto Universities (CF-UM-UP) and LaPMET—Laboratory of Physics for Materials and Emergent Technologies, University of Minho, 4710-057 Braga, Portugal; (E.C.); (J.M.); (P.C.)
- Institute of Science and Innovation for Bio-Sustainability (IB-S), University of Minho, 4710-057 Braga, Portugal
| | - Pedro Costa
- Physics Center of Minho and Porto Universities (CF-UM-UP) and LaPMET—Laboratory of Physics for Materials and Emergent Technologies, University of Minho, 4710-057 Braga, Portugal; (E.C.); (J.M.); (P.C.)
| | | | - Senentxu Lanceros-Mendez
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain; (X.V.); (S.L.-M.)
- Physics Center of Minho and Porto Universities (CF-UM-UP) and LaPMET—Laboratory of Physics for Materials and Emergent Technologies, University of Minho, 4710-057 Braga, Portugal; (E.C.); (J.M.); (P.C.)
- IKERBASQUE, Basque Foundation for Science, 48009 Bilbao, Spain
| |
Collapse
|
50
|
Zwanenburg L, Borloo J, Decorte B, Bunte MJM, Mokhtari S, Serna S, Reichardt NC, Seys LJM, van Diepen A, Schots A, Wilbers RHP, Hokke CH, Claerebout E, Geldhof P. Plant-based production of a protective vaccine antigen against the bovine parasitic nematode Ostertagia ostertagi. Sci Rep 2023; 13:20488. [PMID: 37993516 PMCID: PMC10665551 DOI: 10.1038/s41598-023-47480-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Accepted: 11/14/2023] [Indexed: 11/24/2023] Open
Abstract
The development of effective recombinant vaccines against parasitic nematodes has been challenging and so far mostly unsuccessful. This has also been the case for Ostertagia ostertagi, an economically important abomasal nematode in cattle, applying recombinant versions of the protective native activation-associated secreted proteins (ASP). To gain insight in key elements required to trigger a protective immune response, the protein structure and N-glycosylation of the native ASP and a non-protective Pichia pastoris recombinant ASP were compared. Both antigens had a highly comparable protein structure, but different N-glycan composition. After mimicking the native ASP N-glycosylation via the expression in Nicotiana benthamiana plants, immunisation of calves with these plant-produced recombinants resulted in a significant reduction of 39% in parasite egg output, comparable to the protective efficacy of the native antigen. This study provides a valuable workflow for the development of recombinant vaccines against other parasitic nematodes.
Collapse
Affiliation(s)
- Laurens Zwanenburg
- Laboratory of Parasitology, Department of Translational Physiology, Infectiology and Public Health, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, B-9820, Merelbeke, Belgium
| | - Jimmy Borloo
- Laboratory of Parasitology, Department of Translational Physiology, Infectiology and Public Health, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, B-9820, Merelbeke, Belgium
| | - Bregt Decorte
- Laboratory of Parasitology, Department of Translational Physiology, Infectiology and Public Health, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, B-9820, Merelbeke, Belgium
| | - Myrna J M Bunte
- Laboratory of Nematology, Department of Plant Sciences, Wageningen University & Research, Droevendaalsesteeg 1, 6708 PB, Wageningen, The Netherlands
| | - Sanaz Mokhtari
- Laboratory of Nematology, Department of Plant Sciences, Wageningen University & Research, Droevendaalsesteeg 1, 6708 PB, Wageningen, The Netherlands
| | - Sonia Serna
- Glycotechnology Laboratory, Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo de Miramon 194, 20014, Donostia San Sebastián, Spain
- CIBER-BBN, Paseo Miramón 194, 20014, San Sebastian, Spain
| | - Niels-C Reichardt
- Glycotechnology Laboratory, Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo de Miramon 194, 20014, Donostia San Sebastián, Spain
- CIBER-BBN, Paseo Miramón 194, 20014, San Sebastian, Spain
| | - Leen J M Seys
- Laboratory of Parasitology, Department of Translational Physiology, Infectiology and Public Health, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, B-9820, Merelbeke, Belgium
| | - Angela van Diepen
- Department of Parasitology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA, Leiden, The Netherlands
| | - Arjen Schots
- Laboratory of Nematology, Department of Plant Sciences, Wageningen University & Research, Droevendaalsesteeg 1, 6708 PB, Wageningen, The Netherlands
| | - Ruud H P Wilbers
- Laboratory of Nematology, Department of Plant Sciences, Wageningen University & Research, Droevendaalsesteeg 1, 6708 PB, Wageningen, The Netherlands
| | - Cornelis H Hokke
- Department of Parasitology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA, Leiden, The Netherlands
| | - Edwin Claerebout
- Laboratory of Parasitology, Department of Translational Physiology, Infectiology and Public Health, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, B-9820, Merelbeke, Belgium
| | - Peter Geldhof
- Laboratory of Parasitology, Department of Translational Physiology, Infectiology and Public Health, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, B-9820, Merelbeke, Belgium.
| |
Collapse
|