1
|
Lixa J, Vieira P, Pereira P, Pinho A, Seara M, Sousa A, Vieira L. Retrospective survival analysis of the use of uncemented modular tapered stems for revision in periprosthetic Vancouver B-type fractures. Is instability a threat to survival? Rev Esp Cir Ortop Traumatol (Engl Ed) 2024:S1888-4415(24)00072-9. [PMID: 38521436 DOI: 10.1016/j.recot.2024.03.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 03/13/2024] [Accepted: 03/15/2024] [Indexed: 03/25/2024] Open
Abstract
INTRODUCTION AND OBJECTIVES Periprosthetic hip fractures show increasing incidence and complexity, representing a challenge for the surgeon. We aimed to evaluate the survival of uncemented modular tapered stems in the treatment of periprosthetic Vancouver B2 and B3 type fractures and review the main complications and factors associated with decreased survival. MATERIALS AND METHODS We performed a retrospective study of patients submitted to revision arthroplasty for treatment of periprosthetic femoral stem Vancouver B2 and B3 type fractures with an uncemented modular fluted tapered stem (MRP-Titan). Demographic and radiographic parameters were analyzed. The survival rate (free of reoperation) was calculated at 2- and 5-years using the Kaplan-Meier survivorship analysis. RESULTS Thirty-nine patients were included with a mean age of 73.5 years and a mean follow-up of 5 years. Arthroplasty survivorship at 2 years was 73.7% and at 5 years was 67.5% (mean 8.4 years; range 6.7-10.2). Survivorship was inferior in the patients with episodes of instability (mean 2.5 years; range 0-5.42) (p<0.001). At least one episode of instability occurred in 26.3% of patients and 60% of these patients had a femoral head size 32mm or lower. At least one episode of instability occurred in 71.4% of patients with a greater trochanter fracture (p=0.008). The consolidation rate was 90.6% and the mortality rate was 23.7%. In the group of patients that died, 55.6% were submitted to at least one revision surgery (p=0.044). CONCLUSION Survivorship of an uncemented modular stem (MRP-Titan) in revision for PHF is significantly reduced by episodes of instability.
Collapse
Affiliation(s)
- J Lixa
- Department of Orthopedics and Traumatology, São João University Hospital Centre, Porto, Portugal.
| | - P Vieira
- Department of Orthopedics and Traumatology, São João University Hospital Centre, Porto, Portugal
| | - P Pereira
- Department of Orthopedics and Traumatology, São João University Hospital Centre, Porto, Portugal
| | - A Pinho
- Department of Orthopedics and Traumatology, São João University Hospital Centre, Porto, Portugal
| | - M Seara
- Department of Orthopedics and Traumatology, São João University Hospital Centre, Porto, Portugal
| | - A Sousa
- Department of Orthopedics and Traumatology, São João University Hospital Centre, Porto, Portugal
| | - L Vieira
- Department of Orthopedics and Traumatology, São João University Hospital Centre, Porto, Portugal
| |
Collapse
|
2
|
Cotovio G, Ventura F, Rodrigues da Silva D, Pereira P, Oliveira-Maia AJ. Correction: Cotovio et al. Regulatory Clearance and Approval of Therapeutic Protocols of Transcranial Magnetic Stimulation for Psychiatric Disorders. Brain Sci. 2023, 13, 1029. Brain Sci 2024; 14:153. [PMID: 38391763 PMCID: PMC10887396 DOI: 10.3390/brainsci14020153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Accepted: 12/21/2023] [Indexed: 02/24/2024] Open
Abstract
Missing Citation [...].
Collapse
Affiliation(s)
- Gonçalo Cotovio
- Champalimaud Research and Clinical Centre, Champalimaud Foundation, 1400-038 Lisbon, Portugal
- NOVA Medical School, Faculdade de Ciências Médicas, NMS, FCM, Universidade NOVA de Lisboa, 1169-056 Lisbon, Portugal
- Departamento de Psiquiatria e Saúde Mental, Centro Hospitalar de Lisboa Ocidental, 1449-005 Lisbon, Portugal
| | - Fabiana Ventura
- Champalimaud Research and Clinical Centre, Champalimaud Foundation, 1400-038 Lisbon, Portugal
- Departamento de Psiquiatria e Saúde Mental, Centro Hospitalar e Universitário de Coimbra, 3000-075 Coimbra, Portugal
| | | | - Patrícia Pereira
- Champalimaud Research and Clinical Centre, Champalimaud Foundation, 1400-038 Lisbon, Portugal
- Portuguese Red Cross Health School, 1300-125 Lisbon, Portugal
| | - Albino J Oliveira-Maia
- Champalimaud Research and Clinical Centre, Champalimaud Foundation, 1400-038 Lisbon, Portugal
- NOVA Medical School, Faculdade de Ciências Médicas, NMS, FCM, Universidade NOVA de Lisboa, 1169-056 Lisbon, Portugal
| |
Collapse
|
3
|
Paula CTB, Leandro A, Pereira P, Coelho JFJ, Fonseca AC, Serra AC. Fast-Gelling Polyethylene Glycol/Polyethyleneimine Hydrogels Degradable by Visible-Light. Macromol Biosci 2024; 24:e2300289. [PMID: 37717210 DOI: 10.1002/mabi.202300289] [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: 06/20/2023] [Revised: 09/12/2023] [Indexed: 09/18/2023]
Abstract
The treatment of burn wounds remains a clinical challenge due to the need for repeated dressings changes. Therefore, the development of a dressing system that can be atraumatically removed from the wound bed can be considered a breakthrough and improve treatment times. In this work, the development of an injectable, fast-gelling hydrogel is proposed that can change its mechanical properties when exposed to visible light. The hydrogels are prepared by a "click" amino-yne reaction between poly(ethylene glycol) (PEG) functionalized with propiolic acid and the amino groups of poly(ethyleneimine) (PEI). The hydrogels exhibit a fast gelation time, which can be adjusted by changing the weight percentage and molecular weight of the precursors. They also exhibit good swelling ability and adhesion to living tissues. More importantly, their mechanical properties changed upon irradiation with green light. This loss of properties is achieved by a 1 O2 -mediated mechanism, as confirmed by the degradation of the β-aminoacrylate linker. Moreover, the in vitro cell compatibility results of the hydrogels and their degradation products show good cytocompatibility. Therefore, it is believed that these hydrogels can be considered as materials with great potential for an innovative strategy for the treatment of burn wounds.
Collapse
Affiliation(s)
- Carlos T B Paula
- CEMMPRE, Department of Chemical Engineering, University of Coimbra, Rua Sílvio Lima-Pólo II, Coimbra, 3030-790, Portugal
- IPN, Instituto Pedro Nunes, Associação para a Inovação e Desenvolvimento em Ciência e Tecnologia, Rua Pedro Nunes, Coimbra, 3030-199, Portugal
| | - Ana Leandro
- CEMMPRE, Department of Chemical Engineering, University of Coimbra, Rua Sílvio Lima-Pólo II, Coimbra, 3030-790, Portugal
| | - Patrícia Pereira
- CEMMPRE, Department of Chemical Engineering, University of Coimbra, Rua Sílvio Lima-Pólo II, Coimbra, 3030-790, Portugal
- IPN, Instituto Pedro Nunes, Associação para a Inovação e Desenvolvimento em Ciência e Tecnologia, Rua Pedro Nunes, Coimbra, 3030-199, Portugal
| | - Jorge F J Coelho
- CEMMPRE, Department of Chemical Engineering, University of Coimbra, Rua Sílvio Lima-Pólo II, Coimbra, 3030-790, Portugal
- IPN, Instituto Pedro Nunes, Associação para a Inovação e Desenvolvimento em Ciência e Tecnologia, Rua Pedro Nunes, Coimbra, 3030-199, Portugal
| | - Ana C Fonseca
- CEMMPRE, Department of Chemical Engineering, University of Coimbra, Rua Sílvio Lima-Pólo II, Coimbra, 3030-790, Portugal
| | - Arménio C Serra
- CEMMPRE, Department of Chemical Engineering, University of Coimbra, Rua Sílvio Lima-Pólo II, Coimbra, 3030-790, Portugal
| |
Collapse
|
4
|
Faro Viana F, Cotovio G, da Silva DR, Seybert C, Pereira P, Silva A, Carvalho F, Oliveira-Maia AJ. Reducing motor evoked potential amplitude variability through normalization. Front Psychiatry 2024; 15:1279072. [PMID: 38356910 PMCID: PMC10864444 DOI: 10.3389/fpsyt.2024.1279072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Accepted: 01/04/2024] [Indexed: 02/16/2024] Open
Abstract
BackgroundTranscranial Magnetic Stimulation (TMS) is used for in vivo assessment of human motor cortical excitability, with application of TMS pulses over the motor cortex resulting in muscle responses that can be recorded with electromyography (EMG) as Motor Evoked Potentials (MEPs). These have been widely explored as potential biomarkers for neuropsychiatric disorders but methodological heterogeneity in acquisition, and inherent high variability, have led to constraints in reproducibility. Normalization, consisting in scaling the signal of interest to a known and repeatable measurement, reduces variability and is standard practice for between-subject comparisons of EMG. The effect of normalization on variability of MEP amplitude has not yet been explored and was assessed here using several methods.MethodsThree maximal voluntary isometric contractions (MVICs) and 40 MEPs were collected from the right hand in healthy volunteers, with a retest session conducted 4 to 8 weeks later. MEP amplitude was normalized using either external references (MVICs) or internal references (extreme MEPs). Iterative re-sampling of 30 normalized MEPs per subject was repeated 5,000 times to define, for each normalization method, distributions for between-subject coefficients of variation (CV) of the mean MEP amplitude. Intra-class correlation coefficients (ICC) were used to assess the impact of normalization on test–retest stability of MEP amplitude measurements.ResultsIn the absence of normalization, MEPs collected from the right hand of 47 healthy volunteers were within reported values regarding between-subject variability (95% confidence intervals for the CV: [1.0567,1.0577]) and showed good temporal stability (ICC = 0.77). Internal reference normalization substantially reduced between-subject variability, by values of up to 64%, while external reference normalization had no impact or increased between-subject variability. Normalization with the smallest references reduced test–retest stability, with use of the largest references resulting in slight reduction or improvement of ICCs. Internal reference normalization using the largest MEPs was found to be robust to several sensitivity analyses.ConclusionInternal, but not external, reference normalization reduces between-subject variability of MEP amplitude, and has a minimal impact on within-subject variability when conducted with the largest references. Additional research is necessary to further validate these normalization methods toward potential use of MEPs as biomarkers of neuropsychiatric disorders.
Collapse
Affiliation(s)
- Francisco Faro Viana
- Champalimaud Research, Champalimaud Foundation, Lisbon, Portugal
- Champalimaud Clinical Centre, Champalimaud Foundation, Lisbon, Portugal
| | - Gonçalo Cotovio
- Champalimaud Research, Champalimaud Foundation, Lisbon, Portugal
- Champalimaud Clinical Centre, Champalimaud Foundation, Lisbon, Portugal
- NOVA Medical School, Faculdade de Ciências Médicas, NMS, FCM, Universidade NOVA de Lisboa, Lisbon, Portugal
- Department of Psychiatry and Mental Health, Centro Hospitalar de Lisboa Ocidental, Lisbon, Portugal
| | - Daniel Rodrigues da Silva
- Champalimaud Research, Champalimaud Foundation, Lisbon, Portugal
- Champalimaud Clinical Centre, Champalimaud Foundation, Lisbon, Portugal
| | - Carolina Seybert
- Champalimaud Research, Champalimaud Foundation, Lisbon, Portugal
- Champalimaud Clinical Centre, Champalimaud Foundation, Lisbon, Portugal
| | - Patrícia Pereira
- Champalimaud Research, Champalimaud Foundation, Lisbon, Portugal
- Champalimaud Clinical Centre, Champalimaud Foundation, Lisbon, Portugal
- Portuguese Red Cross Health School, Lisbon, Portugal
| | - Artur Silva
- Champalimaud Research, Champalimaud Foundation, Lisbon, Portugal
| | - Filipe Carvalho
- Champalimaud Research, Champalimaud Foundation, Lisbon, Portugal
| | - Albino J. Oliveira-Maia
- Champalimaud Research, Champalimaud Foundation, Lisbon, Portugal
- Champalimaud Clinical Centre, Champalimaud Foundation, Lisbon, Portugal
- NOVA Medical School, Faculdade de Ciências Médicas, NMS, FCM, Universidade NOVA de Lisboa, Lisbon, Portugal
| |
Collapse
|
5
|
Pinto A, Botelho MJ, Churro C, Asselman J, Pereira P, Pereira JL. A review on aquatic toxins - Do we really know it all regarding the environmental risk posed by phytoplankton neurotoxins? J Environ Manage 2023; 345:118769. [PMID: 37597370 DOI: 10.1016/j.jenvman.2023.118769] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 07/24/2023] [Accepted: 08/09/2023] [Indexed: 08/21/2023]
Abstract
Aquatic toxins are potent natural toxins produced by certain cyanobacteria and marine algae species during harmful cyanobacterial and algal blooms (CyanoHABs and HABs, respectively). These harmful bloom events and the toxins produced during these events are a human and environmental health concern worldwide, with occurrence, frequency and severity of CyanoHABs and HABs being predicted to keep increasing due to ongoing climate change scenarios. These contexts, as well as human health consequences of some toxins produced during bloom events have been thoroughly reviewed before. Conversely, the wider picture that includes the non-human biota in the assessment of noxious effects of toxins is much less covered in the literature and barely covered by review works. Despite direct human exposure to aquatic toxins and related deleterious effects being responsible for the majority of the public attention to the blooms' problematic, it constitutes a very limited fraction of the real environmental risk posed by these toxins. The disruption of ecological and trophic interactions caused by these toxins in the aquatic biota building on deleterious effects they may induce in different species is paramount as a modulator of the overall magnitude of the environmental risk potentially involved, thus necessarily constraining the quality and efficiency of the management strategies that should be placed. In this way, this review aims at updating and consolidating current knowledge regarding the adverse effects of aquatic toxins, attempting to going beyond their main toxicity pathways in human and related models' health, i.e., also focusing on ecologically relevant model organisms. For conciseness and considering the severity in terms of documented human health risks as a reference, we restricted the detailed revision work to neurotoxic cyanotoxins and marine toxins. This comprehensive revision of the systemic effects of aquatic neurotoxins provides a broad overview of the exposure and the hazard that these compounds pose to human and environmental health. Regulatory approaches they are given worldwide, as well as (eco)toxicity data available were hence thoroughly reviewed. Critical research gaps were identified particularly regarding (i) the toxic effects other than those typical of the recognized disease/disorder each toxin causes following acute exposure in humans and also in other biota; and (ii) alternative detection tools capable of being early-warning signals for aquatic toxins occurrence and therefore provide better human and environmental safety insurance. Future directions on aquatic toxins research are discussed in face of the existent knowledge, with particular emphasis on the much-needed development and implementation of effective alternative (eco)toxicological biomarkers for these toxins. The wide-spanning approach followed herein will hopefully stimulate future research more broadly addressing the environmental hazardous potential of aquatic toxins.
Collapse
Affiliation(s)
- Albano Pinto
- CESAM - Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, Portugal.
| | - Maria João Botelho
- IPMA, Portuguese Institute for the Sea and Atmosphere, Av. Alfredo Magalhães Ramalho 6, 1495-165, Algés, Portugal; CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto, Av. General Norton de Matos s/n, 4450-208, Matosinhos, Portugal
| | - Catarina Churro
- IPMA, Portuguese Institute for the Sea and Atmosphere, Av. Alfredo Magalhães Ramalho 6, 1495-165, Algés, Portugal; CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto, Av. General Norton de Matos s/n, 4450-208, Matosinhos, Portugal
| | - Jana Asselman
- Blue Growth Research Lab, Ghent University, Bluebridge Building, Ostend Science Park 1, 8400, Ostend, Belgium
| | - Patrícia Pereira
- CESAM - Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, Portugal
| | - Joana Luísa Pereira
- CESAM - Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, Portugal
| |
Collapse
|
6
|
Carneiro Lobo LA, Alves Santos P, de Sousa JT, Picada JN, Bianchi SE, Bassani VL, da Silva FC, Ethur EM, Goettert MI, Pereira P. Toxicological profile of the Hymenaea courbaril stem bark hydroalcoholic extract using in vitro bioassays and an alternative in vivo Caenorhabditis elegans model. J Toxicol Environ Health A 2023; 86:678-695. [PMID: 37482814 DOI: 10.1080/15287394.2023.2237069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/25/2023]
Abstract
Hymenaea genus has been used in folk medicine in Brazil, but few studies investigated its toxicity profile. Thus, the aim of this study was to determine toxicological parameters of Hymenaea courbaril stem bark hydroalcoholic extract by utilizing three cell lines including murine macrophages (RAW 264.7), mouse fibroblast cells (L929) and human lung fibroblast (MRC-5), as well as Salmonella/microsome assay, and in vivo Caenorhabditis elegans model. The predominant detected phytoconstituents in the extract were coumarins, flavonoids, phenolics, tannins and saponins and by HPLC analysis, astilbin (AST) was found to be the main component. The DPPH assay demonstrated that H. courbaril hydroalcoholic extract exhibited potent antioxidant activity, with an IC50 of 3.12 μg/ml. The extract at concentrations of 400 and 800 μg/ml decreased cell viability 48 hr after treatment in L929 and MRC-5 cell lines. In the Raw 264.7 strain, just the highest concentration (800 μg/ml) lowered cell viability within 48 hr following exposure. The concentration of 100 μg/ml did not markedly affect cell viability in the trypan blue assay. In the alkaline comet assay the extract was found to be non-genotoxic. In the Ames test, the extract exhibited low mutagenic potential without metabolic activation, since only the highest concentrations produced an effect. H. courbaril extract only affected the survival of C. elegans at concentrations of 800 and 1600 μl/ml. These findings demonstrate that H. courbaril extract appears to exert low toxicity as evidenced in vitro and mutagenicity assays; however, the biological relevance of the response of C. elegans survival to safety assessments needs further studies.
Collapse
Affiliation(s)
- Larissa Aline Carneiro Lobo
- Laboratory of Neuropharmacology and Preclinical Toxicology, Federal University of Rio Grande Do Sul, Porto Alegre, RS - Brazil
| | - Peterson Alves Santos
- Laboratory of Neuropharmacology and Preclinical Toxicology, Federal University of Rio Grande Do Sul, Porto Alegre, RS - Brazil
| | - Jayne Torres de Sousa
- Laboratory of Genetic Toxicology, Postgraduate Program in Molecular and Cell Biology Applied to Health, Lutheran University of Brazil (ULBRA), Canoas, RS, Brazil
| | - Jaqueline Nascimento Picada
- Laboratory of Genetic Toxicology, Postgraduate Program in Molecular and Cell Biology Applied to Health, Lutheran University of Brazil (ULBRA), Canoas, RS, Brazil
| | - Sara Elis Bianchi
- Galenic Development Laboratory, Graduate in Pharmaceutical Sciences, Faculty of Pharmacy, Federal University of Rio Grande Do Sul, Porto Alegre, RS - Brazil
| | - Valquiria Linck Bassani
- Galenic Development Laboratory, Graduate in Pharmaceutical Sciences, Faculty of Pharmacy, Federal University of Rio Grande Do Sul, Porto Alegre, RS - Brazil
| | | | - Eduardo Miranda Ethur
- Postgraduate Program in Biotechnology and Post Graduate Program in Environment and Development, University of Vale Do Taquari (Univates), Lajeado, RS - Brazil
| | - Márcia Inês Goettert
- Postgraduate Program in Biotechnology and Post Graduate Program in Environment and Development, University of Vale Do Taquari (Univates), Lajeado, RS - Brazil
| | - Patrícia Pereira
- Laboratory of Neuropharmacology and Preclinical Toxicology, Federal University of Rio Grande Do Sul, Porto Alegre, RS - Brazil
| |
Collapse
|
7
|
Fonseca RG, Kuster A, Fernandes PP, Tavakoli M, Pereira P, Fernandes JR, De Bon F, Serra AC, Fonseca AC, Coelho JFJ. Facile Synthesis of Highly Stretchable, Tough, and Photodegradable Hydrogels. Adv Healthc Mater 2023; 12:e2300918. [PMID: 37133868 DOI: 10.1002/adhm.202300918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Indexed: 05/04/2023]
Abstract
Recently, highly stretchable and tough hydrogels that are photodegradable on-demand have been reported. Unfortunately, the preparation procedure is complex due to the hydrophobic nature of the photocrosslinkers. Herein, a simple method is reported to prepare photodegradable double-network (DN) hydrogels that exhibit high stretchability, toughness, and biocompatibility. Hydrophilic ortho-nitrobenzyl (ONB) crosslinkers incorporating different poly(ethylene glycol) (PEG) backbones (600, 1000, and 2000 g mol-1 ) are synthesized. These photodegradable DN hydrogels are prepared by the irreversible crosslinking of chains by using such ONB crosslinkers, and the reversible ionic crosslinking between sodium alginate and divalent cations (Ca2+ ). Remarkable mechanical properties are obtained by combining ionic and covalent crosslinking and their synergistic effect, and by reducing the length of the PEG backbone. The rapid on-demand degradation of these hydrogels is also demonstrated by using cytocompatible light wavelength (λ = 365 nm) that degrades the photosensitive ONB units. The authors have successfully used these hydrogels as skin-worn sensors for monitoring human respiration and physical activities. A combination of excellent mechanical properties, facile fabrication, and on-demand degradation holds promise for their application as the next generation of substrates or active sensors eco-friendly for bioelectronics, biosensors, wearable computing, and stretchable electronics.
Collapse
Affiliation(s)
- Rita G Fonseca
- CEMMPRE - Department of Chemical Engineering, University of Coimbra, Coimbra, 3030-790, Portugal
| | - Aline Kuster
- CEMMPRE - Department of Chemical Engineering, University of Coimbra, Coimbra, 3030-790, Portugal
| | - Pedro P Fernandes
- Soft and Printed Microelectronics Lab, Department of Electrical Engineering, University of Coimbra, Coimbra, 3030-194, Portugal
| | - Mahmoud Tavakoli
- Soft and Printed Microelectronics Lab, Department of Electrical Engineering, University of Coimbra, Coimbra, 3030-194, Portugal
| | - Patrícia Pereira
- CEMMPRE - Department of Chemical Engineering, University of Coimbra, Coimbra, 3030-790, Portugal
- IPN - Instituto Pedro Nunes, Associação para a Inovação e Desenvolvimento em Ciência e Tecnologia, Rua Pedro Nunes, Coimbra, 3030-199, Portugal
| | - José R Fernandes
- Chemical Centre - Vila Real (CQVR), Physics Department, School of Science and Technology, University of Trás-os-Montes e Alto Douro, Vila Real, 5000-801, Portugal
| | - Francesco De Bon
- CEMMPRE - Department of Chemical Engineering, University of Coimbra, Coimbra, 3030-790, Portugal
| | - Arménio C Serra
- CEMMPRE - Department of Chemical Engineering, University of Coimbra, Coimbra, 3030-790, Portugal
| | - Ana C Fonseca
- CEMMPRE - Department of Chemical Engineering, University of Coimbra, Coimbra, 3030-790, Portugal
| | - Jorge F J Coelho
- CEMMPRE - Department of Chemical Engineering, University of Coimbra, Coimbra, 3030-790, Portugal
| |
Collapse
|
8
|
Cotovio G, Ventura F, Rodrigues da Silva D, Pereira P, Oliveira-Maia AJ. Regulatory Clearance and Approval of Therapeutic Protocols of Transcranial Magnetic Stimulation for Psychiatric Disorders. Brain Sci 2023; 13:1029. [PMID: 37508962 PMCID: PMC10377201 DOI: 10.3390/brainsci13071029] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 06/21/2023] [Accepted: 06/27/2023] [Indexed: 07/30/2023] Open
Abstract
Non-invasive brain stimulation techniques (NIBS) have been widely used in both clinical and research contexts in neuropsychiatry. They are safe and well-tolerated, making NIBS an interesting option for application in different settings. Transcranial magnetic stimulation (TMS) is one of these strategies. It uses electromagnetic pulses for focal modulate ion of neuronal activity in brain cortical regions. When pulses are applied repeatedly (repetitive transcranial magnetic stimulation-rTMS), they are thought to induce long-lasting neuroplastic effects, proposed to be a therapeutic mechanism for rTMS, with efficacy and safety initially demonstrated for treatment-resistant depression (TRD). Since then, many rTMS treatment protocols emerged for other difficult to treat psychiatric conditions. Moreover, multiple clinical studies, including large multi-center trials and several meta-analyses, have confirmed its clinical efficacy in different neuropsychiatric disorders, resulting in evidence-based guidelines and recommendations. Currently, rTMS is cleared by multiple regulatory agencies for the treatment of TRD, depression with comorbid anxiety disorders, obsessive compulsive disorder, and substance use disorders, such as smoking cessation. Importantly, current research supports the potential future use of rTMS for other psychiatric syndromes, including the negative symptoms of schizophrenia and post-traumatic stress disorder. More precise knowledge of formal indications for rTMS therapeutic use in psychiatry is critical to enhance clinical decision making in this area.
Collapse
Affiliation(s)
- Gonçalo Cotovio
- Champalimaud Research and Clinical Centre, Champalimaud Foundation, 1400-038 Lisbon, Portugal; (G.C.)
- NOVA Medical School, Faculdade de Ciências Médicas, NMS, FCM, Universidade NOVA de Lisboa, 1169-056 Lisbon, Portugal
- Departamento de Psiquiatria e Saúde Mental, Centro Hospitalar de Lisboa Ocidental, 1449-005 Lisbon, Portugal
| | - Fabiana Ventura
- Champalimaud Research and Clinical Centre, Champalimaud Foundation, 1400-038 Lisbon, Portugal; (G.C.)
- Departamento de Psiquiatria e Saúde Mental, Centro Hospitalar e Universitário de Coimbra, 3000-075 Coimbra, Portugal
| | - Daniel Rodrigues da Silva
- Champalimaud Research and Clinical Centre, Champalimaud Foundation, 1400-038 Lisbon, Portugal; (G.C.)
| | - Patrícia Pereira
- Champalimaud Research and Clinical Centre, Champalimaud Foundation, 1400-038 Lisbon, Portugal; (G.C.)
- Portuguese Red Cross Health School, 1300-125 Lisbon, Portugal
| | - Albino J. Oliveira-Maia
- Champalimaud Research and Clinical Centre, Champalimaud Foundation, 1400-038 Lisbon, Portugal; (G.C.)
- NOVA Medical School, Faculdade de Ciências Médicas, NMS, FCM, Universidade NOVA de Lisboa, 1169-056 Lisbon, Portugal
| |
Collapse
|
9
|
Seybert C, Cotovio G, Rodrigues da Silva D, Faro Viana F, Pereira P, Oliveira-Maia AJ. Replicability of motor cortex-excitability modulation by intermittent theta burst stimulation. Clin Neurophysiol 2023; 152:22-33. [PMID: 37269770 DOI: 10.1016/j.clinph.2023.04.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 02/07/2023] [Accepted: 04/18/2023] [Indexed: 06/05/2023]
Abstract
OBJECTIVE Transcranial Magnetic Stimulation (TMS) allows for cortical-excitability (CE) assessment and its modulation has been associated with neuroplasticity-like phenomena, thought to be impaired in neuropsychiatric disorders. However, the stability of these measures has been challenged, defying their potential as biomarkers. This study aimed to test the temporal stability of cortical-excitability modulation and study the impact of individual and methodological factors in determining within- and between-subject variability. METHODS We recruited healthy-subjects to assess motor cortex (MC) excitability modulation, collecting motor evoked potentials (MEP) from both hemispheres, before and after left-sided intermittent theta burst stimulation (iTBS), to obtain a measure of MEPs change (delta-MEPs). To assess stability across-time, the protocol was repeated after 6 weeks. Socio-demographic and psychological variables were collected to test association with delta-MEPs. RESULTS We found modulatory effects on left MC and not on right hemisphere following iTBS of left MC. Left delta-MEP was stable across-time when performed immediately after iTBS (ICC = 0.69), only when obtained first in left hemisphere. We discovered similar results in a replication cohort testing only left MC (ICC = 0.68). No meaningful associations were found between demographic and psychological factors and delta-MEPs. CONCLUSIONS Delta-MEP is stable immediately after modulation and not impacted by different individual factors, including expectation about TMS-effect. SIGNIFICANCE Motor cortex excitability modulation immediately after iTBS should be further explored as a potential biomarker for neuropsychiatric diseases.
Collapse
Affiliation(s)
- Carolina Seybert
- Champalimaud Research & Clinical Centre, Champalimaud Foundation, Lisbon, Portugal
| | - Gonçalo Cotovio
- Champalimaud Research & Clinical Centre, Champalimaud Foundation, Lisbon, Portugal; NOVA Medical School, Faculdade de Ciências Médicas, NMS, FCM, Universidade NOVA de Lisboa, Lisbon, Portugal; Department of Psychiatry and Mental Health, Centro Hospitalar de Lisboa Ocidental, Lisbon, Portugal
| | | | - Francisco Faro Viana
- Champalimaud Research & Clinical Centre, Champalimaud Foundation, Lisbon, Portugal; Department of Physics, Faculdade de Ciências da Universidade de Lisboa, Lisbon, Portugal
| | - Patrícia Pereira
- Champalimaud Research & Clinical Centre, Champalimaud Foundation, Lisbon, Portugal; Portuguese Red Cross Health School, Lisbon, Portugal
| | - Albino J Oliveira-Maia
- Champalimaud Research & Clinical Centre, Champalimaud Foundation, Lisbon, Portugal; NOVA Medical School, Faculdade de Ciências Médicas, NMS, FCM, Universidade NOVA de Lisboa, Lisbon, Portugal.
| |
Collapse
|
10
|
Carvalho PS, Fonseca-Rodrigues D, Pacheco M, Almeida A, Pinto-Ribeiro F, Pereira P. Comparative neurotoxicity of dietary methylmercury and waterborne inorganic mercury in fish: Evidence of optic tectum vulnerability through morphometric and histopathological assessments. Aquat Toxicol 2023; 261:106557. [PMID: 37329637 DOI: 10.1016/j.aquatox.2023.106557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 04/05/2023] [Accepted: 05/09/2023] [Indexed: 06/19/2023]
Abstract
This work investigated the effects of inorganic mercury (iHg) and methylmercury (MeHg) on the fish optic tectum morphology, viz. in relation to: (i) vulnerability of specific optic tectum layers; (ii) preferential targeting of Hg forms to neurons or glial cells; (iii) comparative toxicity of iHg and MeHg in this brain area that is in the maintenance of several fish behaviors. Two experiments exposing juvenile white seabream (Diplodus sargus) to waterborne iHg [HgCl2 (2 μg L-1)] and dietary MeHg (8.7 μg g-1) were performed, comprising both exposure (7 and 14 days; E7 and E14, respectively) and post-exposure (28 days; PE28) periods. Morphometric assessments were performed using stereological methods where the layers of the optic tectum were outlined, while its area and the number of neurons and glial cells were estimated. A histopathological assessment was also performed per section and per layer of optic tectum. iHg exposure did not trigger the loss of neurons during the exposure periods, while a decrease of glial cells was detected in a single layer of the optic tectum at E14. Differently, upon MeHg exposure, a decrease on the number of neurons and glial cells was found in several layers of optic tectum. In the post-exposure, both Hg forms triggered the loss of neurons, while only MeHg exposure led to a decrease on the number of glia cells. The histopathological assessment pointed out a higher toxicity of MeHg in the optic tectum layers, particularly in the post-exposure period, while no significant alterations were found in fish exposed to iHg. Hg forms targeted preferentially neurons. iHg and MeHg are relevant neurotoxicants to fish, with MeHg exposure leading to a higher toxicity than iHg in the optic tectum. After 28 days of post-exposure, iHg and MeHg neurotoxicity remained prominent, suggesting long-term effects of these toxicants.
Collapse
Affiliation(s)
- Patrícia S Carvalho
- CESAM and Department of Biology, University of Aveiro, Campus Universitário de Santiago, University of Aveiro, Aveiro 3810-193, Portugal
| | - Diana Fonseca-Rodrigues
- School of Medicine, Life and Health Sciences Research Institute (ICVS), Campus of Gualtar, University of Minho, Braga 4750-057, Portugal; ICVS/3B's - PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - Mário Pacheco
- CESAM and Department of Biology, University of Aveiro, Campus Universitário de Santiago, University of Aveiro, Aveiro 3810-193, Portugal
| | - Armando Almeida
- School of Medicine, Life and Health Sciences Research Institute (ICVS), Campus of Gualtar, University of Minho, Braga 4750-057, Portugal; ICVS/3B's - PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - Filipa Pinto-Ribeiro
- School of Medicine, Life and Health Sciences Research Institute (ICVS), Campus of Gualtar, University of Minho, Braga 4750-057, Portugal; ICVS/3B's - PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - Patrícia Pereira
- CESAM and Department of Biology, University of Aveiro, Campus Universitário de Santiago, University of Aveiro, Aveiro 3810-193, Portugal.
| |
Collapse
|
11
|
Pereira P, Neto AS, Rodrigues AS, Barros I, Miranda C, Ramalho-Santos J, Pereira de Almeida L, Ferreira JMF, Coelho JFJ, Fonseca AC. In Vitro Evaluation of Biphasic Calcium Phosphate Scaffolds Derived from Cuttlefish Bone Coated with Poly(ester urea) for Bone Tissue Regeneration. Polymers (Basel) 2023; 15:polym15102256. [PMID: 37242831 DOI: 10.3390/polym15102256] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 04/27/2023] [Accepted: 05/08/2023] [Indexed: 05/28/2023] Open
Abstract
This study investigates the osteogenic differentiation of umbilical-cord-derived human mesenchymal stromal cells (hUC-MSCs) on biphasic calcium phosphate (BCP) scaffolds derived from cuttlefish bone doped with metal ions and coated with polymers. First, the in vitro cytocompatibility of the undoped and ion-doped (Sr2+, Mg2+ and/or Zn2+) BCP scaffolds was evaluated for 72 h using Live/Dead staining and viability assays. From these tests, the most promising composition was found to be the BCP scaffold doped with strontium (Sr2+), magnesium (Mg2+) and zinc (Zn2+) (BCP-6Sr2Mg2Zn). Then, samples from the BCP-6Sr2Mg2Zn were coated with poly(ԑ-caprolactone) (PCL) or poly(ester urea) (PEU). The results showed that hUC-MSCs can differentiate into osteoblasts, and hUC-MSCs seeded on the PEU-coated scaffolds proliferated well, adhered to the scaffold surfaces, and enhanced their differentiation capabilities without negative effects on cell proliferation under in vitro conditions. Overall, these results suggest that PEU-coated scaffolds are an alternative to PCL for use in bone regeneration, providing a suitable environment to maximally induce osteogenesis.
Collapse
Affiliation(s)
- Patrícia Pereira
- IPN, Instituto Pedro Nunes, Associação para a Inovação e Desenvolvimento em Ciência e Tecnologia, Rua Pedro Nunes, 3030-199 Coimbra, Portugal
- CEMMPRE, Department of Chemical Engineering, University of Coimbra, Rua Sílvio Lima-Pólo II, 3030-790 Coimbra, Portugal
| | - Ana S Neto
- Department of Materials and Ceramic Engineering/CICECO-Aveiro Institute of Materials, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Ana S Rodrigues
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, 3004-504 Coimbra, Portugal
| | - Inês Barros
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, 3004-504 Coimbra, Portugal
- CIBB-Center for Innovative Biomedicine and Biotechnology, University of Coimbra, 3004-504 Coimbra, Portugal
- III-Institute for Interdisciplinary Research, University of Coimbra, 3030-789 Coimbra, Portugal
| | - Catarina Miranda
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, 3004-504 Coimbra, Portugal
- CIBB-Center for Innovative Biomedicine and Biotechnology, University of Coimbra, 3004-504 Coimbra, Portugal
- III-Institute for Interdisciplinary Research, University of Coimbra, 3030-789 Coimbra, Portugal
| | - João Ramalho-Santos
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, 3004-504 Coimbra, Portugal
- DCV-Department of Life Sciences, University of Coimbra, 3000-456 Coimbra, Portugal
| | - Luís Pereira de Almeida
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, 3004-504 Coimbra, Portugal
- CIBB-Center for Innovative Biomedicine and Biotechnology, University of Coimbra, 3004-504 Coimbra, Portugal
- Faculty of Pharmacy, University of Coimbra, 3000-548 Coimbra, Portugal
- Viravector-Viral Vector for Gene Transfer Core Facility, University of Coimbra, 3004-504 Coimbra, Portugal
| | - José M F Ferreira
- Department of Materials and Ceramic Engineering/CICECO-Aveiro Institute of Materials, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Jorge F J Coelho
- IPN, Instituto Pedro Nunes, Associação para a Inovação e Desenvolvimento em Ciência e Tecnologia, Rua Pedro Nunes, 3030-199 Coimbra, Portugal
- CEMMPRE, Department of Chemical Engineering, University of Coimbra, Rua Sílvio Lima-Pólo II, 3030-790 Coimbra, Portugal
| | - Ana C Fonseca
- CEMMPRE, Department of Chemical Engineering, University of Coimbra, Rua Sílvio Lima-Pólo II, 3030-790 Coimbra, Portugal
| |
Collapse
|
12
|
Cunha M, Silva PS, Vaz R, Pereira P. Answer to the Letter to the Editor of V. Raj, et al. concerning: ''Long-term outcome of redo discectomy for recurrent lumbar disc herniations'' by Cunha M. et al. (Eur Spine J [2023]. https://doi.org/10.1007/s00586-022- 07493-4). Eur Spine J 2023; 32:1858. [PMID: 36933019 DOI: 10.1007/s00586-023-07644-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Accepted: 03/05/2023] [Indexed: 03/19/2023]
Affiliation(s)
- Marisa Cunha
- Neurosurgery Department, Centro Hospitalar Universitário São João, Porto, Portugal. .,Faculdade de Medicina da Universidade do Porto, Porto, Portugal.
| | - P S Silva
- Neurosurgery Department, Centro Hospitalar Universitário São João, Porto, Portugal.,Faculdade de Medicina da Universidade do Porto, Porto, Portugal
| | - R Vaz
- Neurosurgery Department, Centro Hospitalar Universitário São João, Porto, Portugal.,Faculdade de Medicina da Universidade do Porto, Porto, Portugal
| | - P Pereira
- Neurosurgery Department, Centro Hospitalar Universitário São João, Porto, Portugal.,Faculdade de Medicina da Universidade do Porto, Porto, Portugal
| |
Collapse
|
13
|
De Marco G, Billè B, Brandão F, Galati M, Pereira P, Cappello T, Pacheco M. Differential Cell Metabolic Pathways in Gills and Liver of Fish (White Seabream Diplodus sargus) Coping with Dietary Methylmercury Exposure. Toxics 2023; 11:181. [PMID: 36851056 PMCID: PMC9961322 DOI: 10.3390/toxics11020181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 02/10/2023] [Accepted: 02/12/2023] [Indexed: 06/18/2023]
Abstract
Mercury (Hg) is a dangerous and persistent trace element. Its organic and highly toxic form, methylmercury (MeHg), easily crosses biological membranes and accumulates in biota. Nevertheless, understanding the mechanisms of dietary MeHg toxicity in fish remains a challenge. A time-course experiment was conducted with juvenile white seabreams, Diplodus sargus (Linnaeus, 1758), exposed to realistic levels of MeHg in feed (8.7 μg g-1, dry weight), comprising exposure (E; 7 and 14 days) and post-exposure (PE; 28 days) periods. Total Hg levels increased with time in gills and liver during E and decreased significantly in PE (though levels of control fish were reached only for gills), with liver exhibiting higher levels (2.7 times) than gills. Nuclear magnetic resonance (NMR)-based metabolomics revealed multiple and often differential metabolic changes between fish organs. Gills exhibited protein catabolism, disturbances in cholinergic neurotransmission, and changes in osmoregulation and lipid and energy metabolism. However, dietary MeHg exposure provoked altered protein metabolism in the liver with decreased amino acids, likely for activation of defensive strategies. PE allowed for the partial recovery of both organs, even if with occurrence of oxidative stress and changes of energy metabolism. Overall, these findings support organ-specific responses according to their sensitivity to Hg exposure, pointing out that indications obtained in biomonitoring studies may depend also on the selected organ.
Collapse
Affiliation(s)
- Giuseppe De Marco
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98166 Messina, Italy
| | - Barbara Billè
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98166 Messina, Italy
| | - Fátima Brandão
- Centre for Environmental and Marine Studies (CESAM) and Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Mariachiara Galati
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98166 Messina, Italy
| | - Patrícia Pereira
- Centre for Environmental and Marine Studies (CESAM) and Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Tiziana Cappello
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98166 Messina, Italy
| | - Mário Pacheco
- Centre for Environmental and Marine Studies (CESAM) and Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal
| |
Collapse
|
14
|
Cunha M, Basto D, Silva PS, Vaz R, Pereira P. Long-term outcome of redo discectomy for recurrent lumbar disc herniations. Eur Spine J 2023; 32:534-541. [PMID: 36595137 DOI: 10.1007/s00586-022-07493-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 10/24/2022] [Accepted: 12/08/2022] [Indexed: 01/04/2023]
Abstract
PURPOSE Recurrent lumbar disc herniation (RLDH) is an important cause of morbidity and healthcare costs. The goal of this investigation is to assess surgical outcomes and their predictors in patients who underwent revision discectomy for RLDH, with a minimum follow-up of ten years, to shed light on the best treatment to offer to these patients. METHODS Patients who underwent revision discectomy to treat RLDH between 2004 and 2011 in our Department were enrolled. Demographic, clinical, and surgical data were collected. The need of third intervention for RLDH was the primary outcome. Patient's satisfaction, Core Outcome Measures Index, Oswestry Disability Index, and EuroQoL-5D scores were also evaluated. RESULTS This study includes 55 patients, with a mean follow-up time of 144 months [112-199]. In this period, a third intervention was needed in 30.9% (n = 17) of patients. Most recurrences took place in the first 2 years after the second surgery (58.8%, n = 10) and the risk of needing a third surgery decreased over time. After 5 years, the probability of not having surgery for recurrence was 71% [CI 95%: 60-84%], with a tendency to stabilize after that. An interval between the first discectomy and the surgery for recurrence shorter than 7.6 months was identified as a predictor for a second recurrence. CONCLUSION The risk of needing a third surgery seems to stabilize after five years. Patients with an early recurrence after the first discectomy seem to have a higher risk of a new recurrence, so an arthrodesis might be worth considering.
Collapse
Affiliation(s)
- M Cunha
- Neurosurgery Department, Centro Hospitalar Universitário São João, Porto, Portugal. .,Faculdade de Medicina da Universidade Do Porto, Porto, Portugal.
| | - D Basto
- Faculdade de Medicina da Universidade Do Porto, Porto, Portugal
| | - P S Silva
- Neurosurgery Department, Centro Hospitalar Universitário São João, Porto, Portugal.,Faculdade de Medicina da Universidade Do Porto, Porto, Portugal
| | - R Vaz
- Neurosurgery Department, Centro Hospitalar Universitário São João, Porto, Portugal.,Faculdade de Medicina da Universidade Do Porto, Porto, Portugal
| | - P Pereira
- Neurosurgery Department, Centro Hospitalar Universitário São João, Porto, Portugal.,Faculdade de Medicina da Universidade Do Porto, Porto, Portugal
| |
Collapse
|
15
|
Queirós L, Aguiar N, Pereira P, Gonçalves FJM, Alves A, Pereira JL. Recommended rates of azoxystrobin and tebuconazole seem to be environmentally safe but ineffective against target fungi. Ecotoxicology 2023; 32:102-113. [PMID: 36650308 PMCID: PMC9883303 DOI: 10.1007/s10646-023-02619-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Accepted: 01/06/2023] [Indexed: 06/17/2023]
Abstract
The use of fungicides in agriculture has been playing a role in the enhancement of agricultural yields through the control of pathogens causing serious diseases in crops. Still, adverse environmental and human health effects resulting from its application have been reported. In this study, the possibility of readjusting the formulation of a commercial product combining azoxystrobin and tebuconazole (active ingredients - AIs; Custodia®) towards environmentally safer alternative(s) was investigated. Specifically, the sensitivity of non-target aquatic communities to each AI was first evaluated by applying the Species Sensitivity Distributions (SSDs) approach. Then, mixtures of these AIs were tested in a non-target organism (Raphidocelis subcapitata) denoting sensitivity to both AIs as assessed from SSDs. The resulting data supported the design of the last stage of this study, where mixtures of those AIs at equivalent vs. alternative ratios and rates as in the commercial formulation were tested against two target fungal species: Pyrenophora teres CBS 123929 and Rhynchosporium secalis CBS 110524. The comparison between the sensitivity of non-target aquatic species and the corresponding efficacy towards target fungi revealed that currently applied mixture and rates of these AIs are generally environmentally safe (antagonistic interaction; concentrations below the EC1 for R. subcapitata and generally below the HC5 for aquatic non-target communities), but ineffective against target organisms (maximum levels of inhibition of 70 and 50% in P. teres CBS 123929 and R. secalis CBS 110524, respectively). Results additionally suggest a potentiation of the effects of the AIs by the other formulants added to the commercial product at tested rates. Overall, this study corroborates that commercial products can be optimized during design stages based on a systematic ecotoxicological testing for ingredient interactions and actual efficacy against targets. This could be a valuable pathway to reduce environmental contamination during transition to a more sustainable agricultural production.
Collapse
Affiliation(s)
- Libânia Queirós
- Department of Biology, University of Aveiro, Aveiro, Portugal.
- CESAM (Centre for Environmental and Marine Studies), University of Aveiro, Aveiro, Portugal.
| | - Nuno Aguiar
- Department of Biology, University of Aveiro, Aveiro, Portugal
| | - Patrícia Pereira
- Department of Biology, University of Aveiro, Aveiro, Portugal
- CESAM (Centre for Environmental and Marine Studies), University of Aveiro, Aveiro, Portugal
| | - Fernando J M Gonçalves
- Department of Biology, University of Aveiro, Aveiro, Portugal
- CESAM (Centre for Environmental and Marine Studies), University of Aveiro, Aveiro, Portugal
| | - Artur Alves
- Department of Biology, University of Aveiro, Aveiro, Portugal
- CESAM (Centre for Environmental and Marine Studies), University of Aveiro, Aveiro, Portugal
| | - Joana Luísa Pereira
- Department of Biology, University of Aveiro, Aveiro, Portugal
- CESAM (Centre for Environmental and Marine Studies), University of Aveiro, Aveiro, Portugal
| |
Collapse
|
16
|
Oliveira ASR, Pereira P, Mendonça PV, Fonseca AC, Simões S, Serra AC, Coelho JFJ. Correction: Novel degradable amphiphilic 4-arm star PLA- b-POEOA and PLGA- b-POEOA block copolymers: synthesis, characterization and self-assembly. Polym Chem 2023. [DOI: 10.1039/d3py90030d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
Abstract
Correction for ‘Novel degradable amphiphilic 4-arm star PLA-b-POEOA and PLGA-b-POEOA block copolymers: synthesis, characterization and self-assembly’ by Andreia S. R. Oliveira et al., Polym. Chem., 2023, 14, 161–171, https://doi.org/10.1039/D2PY01216B.
Collapse
Affiliation(s)
- Andreia S. R. Oliveira
- University of Coimbra, Centre for Mechanical Engineering, Materials and Processes (CEMMPRE), Department of Chemical Engineering, Rua Sílvio Lima-Polo II, 3030-790 Coimbra, Portugal
| | - Patrícia Pereira
- University of Coimbra, Centre for Mechanical Engineering, Materials and Processes (CEMMPRE), Department of Chemical Engineering, Rua Sílvio Lima-Polo II, 3030-790 Coimbra, Portugal
- IPN, Instituto Pedro Nunes, Associação para a Inovação e Desenvolvimento em Ciência e Tecnologia, Rua Pedro Nunes, 3030-199 Coimbra, Portugal
| | - Patrícia V. Mendonça
- University of Coimbra, Centre for Mechanical Engineering, Materials and Processes (CEMMPRE), Department of Chemical Engineering, Rua Sílvio Lima-Polo II, 3030-790 Coimbra, Portugal
| | - Ana C. Fonseca
- University of Coimbra, Centre for Mechanical Engineering, Materials and Processes (CEMMPRE), Department of Chemical Engineering, Rua Sílvio Lima-Polo II, 3030-790 Coimbra, Portugal
| | - Sérgio Simões
- University of Coimbra, Faculty of Pharmacy, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal
- Bluepharma, Indústria Farmacêutica, SA, São Martinho do Bispo, 3045-016 Coimbra, Portugal
| | - Arménio C. Serra
- University of Coimbra, Centre for Mechanical Engineering, Materials and Processes (CEMMPRE), Department of Chemical Engineering, Rua Sílvio Lima-Polo II, 3030-790 Coimbra, Portugal
| | - Jorge F. J. Coelho
- University of Coimbra, Centre for Mechanical Engineering, Materials and Processes (CEMMPRE), Department of Chemical Engineering, Rua Sílvio Lima-Polo II, 3030-790 Coimbra, Portugal
- IPN, Instituto Pedro Nunes, Associação para a Inovação e Desenvolvimento em Ciência e Tecnologia, Rua Pedro Nunes, 3030-199 Coimbra, Portugal
| |
Collapse
|
17
|
Cotovio G, Seybert C, Rodrigues da Silva D, Viana FF, Pereira P, Oliveira-Maia AJ. Motor cortex excitability modulation after intermittent theta burst stimulation: looking for stability and potential predictors of variability. Brain Stimul 2023. [DOI: 10.1016/j.brs.2023.01.566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023] Open
|
18
|
Uczay M, Pflüger P, Picada JN, de Oliveira JDM, da SilvaTorres IL, Medeiros HR, Vendruscolo MH, von Poser G, Pereira P. Geniposide and asperuloside alter the COX-2 and GluN2B receptor expression after pilocarpine-induced seizures in mice. Naunyn-Schmiedeberg's Arch Pharmacol 2022; 396:951-962. [PMID: 36536207 DOI: 10.1007/s00210-022-02367-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Accepted: 12/11/2022] [Indexed: 12/24/2022]
Abstract
Asperuloside (ASP) and geniposide (GP) are iridoids that have shown various biological properties, such as reduction of inflammation, oxidative stress, and neuroprotection. The aim of this study was to investigate the mechanism of action of ASP and GP through the experimental model of pilocarpine-induced seizures. Mice were treated daily with saline, valproic acid (VPA), GP (5, 25, or 50 mg/kg), or ASP (20 or 40 mg/kg) for 8 days. Pilocarpine (PILO) treatment was administered after the last day of treatment, and the epileptic behavior was recorded for 1 h and analyzed by an adapted scale. Afterward, the hippocampus and blood samples were collected for western blot analyses, ELISA and comet assay, and bone marrow to the micronucleus test. We evaluated the expression of the inflammatory marker cyclooxygenase-2 (COX-2), GluN2B, a subunit of the NMDA receptor, pGluR1, an AMPA receptor, and the enzyme GAD-1 by western blot and the cytokine TNF-α by ELISA. The treatments with GP and ASP were capable to decrease the latency to the first seizure, although they did not change the latency to status epilepticus (SE). ASP demonstrated a genotoxic potential analyzed by comet assay; however, the micronuclei frequency was not increased in the bone marrow. The GP and ASP treatments were capable to reduce COX-2 and GluN2B receptor expression after PILO exposure. This study suggests that GP and ASP have a protective effect on PILO-induced seizures, decreasing GluN2B receptor and COX-2 expression.
Collapse
Affiliation(s)
- Mariana Uczay
- Laboratory of Neuropharmacology and Preclinical Toxicology, Institute of Basic Health Sciences, Federal University of Rio Grande Do Sul, Porto Alegre, 90050-170, Brazil
| | - Pricila Pflüger
- Laboratory of Neuropharmacology and Preclinical Toxicology, Institute of Basic Health Sciences, Federal University of Rio Grande Do Sul, Porto Alegre, 90050-170, Brazil
| | | | | | - Iraci Lucena da SilvaTorres
- Laboratory of Pain Pharmacology and Neuromodulation, Federal University of Rio Grande Do Sul, Porto Alegre, 90050-170, Brazil
| | - Helouise Richardt Medeiros
- Laboratory of Pain Pharmacology and Neuromodulation, Federal University of Rio Grande Do Sul, Porto Alegre, 90050-170, Brazil
| | - Maria Helena Vendruscolo
- Laboratory of Pharmacognosy, College of Pharmacy, Federal University of Rio Grande Do Sul (UFRGS), Porto Alegre, 90050-170, Brazil
| | - Gilsane von Poser
- Laboratory of Pharmacognosy, College of Pharmacy, Federal University of Rio Grande Do Sul (UFRGS), Porto Alegre, 90050-170, Brazil
| | - Patrícia Pereira
- Laboratory of Neuropharmacology and Preclinical Toxicology, Institute of Basic Health Sciences, Federal University of Rio Grande Do Sul, Porto Alegre, 90050-170, Brazil.
| |
Collapse
|
19
|
Paula CT, Madeira AB, Pereira P, Branco R, Morais PV, Coelho JF, Fonseca AC, Serra AC. ROS-degradable PEG-based wound dressing films with drug release and antibacterial properties. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
20
|
Seghatchian J, Pereira P, Lanza F. Spotlights on the latest opinions on identification, prevention, and management of newer CoV-2 variants: a roundup appraisal on innovative ideas and designer vaccines for Omicron. Transfus Apher Sci 2022; 61:103499. [PMID: 35811273 PMCID: PMC9250817 DOI: 10.1016/j.transci.2022.103499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 05/02/2022] [Accepted: 06/30/2022] [Indexed: 10/24/2022]
|
21
|
Taieb J, Arnold D, Prenen H, Sangro B, Pernot S, Zeka B, Kaufmann N, Gjoreski A, Iezzi R, Pereira P. P-17 Real-life use and long-term effectiveness results from CIREL – the multi-centre, observational study on irinotecan-eluting transarterial chemoembolization in CRLM. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.04.108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
|
22
|
Fonseca RG, De Bon F, Pereira P, Carvalho FM, Freitas M, Tavakoli M, Serra AC, Fonseca AC, Coelho JFJ. Photo-degradable, tough and highly stretchable hydrogels. Mater Today Bio 2022; 15:100325. [PMID: 35757031 PMCID: PMC9218832 DOI: 10.1016/j.mtbio.2022.100325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 06/10/2022] [Accepted: 06/10/2022] [Indexed: 11/24/2022]
Abstract
We present for the first time highly stretchable and tough hydrogels with controlled light-triggered photodegradation. A double-network of alginate/polyacrylamide (PAAm) is formed by using covalently and ionically crosslinked subnetworks. The ionic Ca2+ alginate interpenetrates a PAAm network covalently crosslinked by a bifunctional acrylic crosslinker containing the photodegradable o-nitrobenzyl (ONB) core instead of the commonly used methylene bisacrylamide (MBAA). Remarkably, due to the developed protocol, the change of the crosslinker did not affect the hydrogel's mechanical properties. The incorporation of photosensitive components in hydrogels allows external temporal control of their properties and tuneable degradation. Cell viability and cell proliferation assays revealed that hydrogels and their photodegradation products are not cytotoxic to the NIH3T3 cell line. In one example of application, we used these hydrogels for bio-potential acquisition in wearable electrocardiography. Surprisingly, these hydrogels showed a lower skin-electrode impedance, compared to the common medical grade Ag/AgCl electrodes. This work lays the foundation for the next generation of tough and highly stretchable hydrogels that are environmentally friendly and can find applications in a variety of fields such as health, electronics, and energy, as they combine excellent mechanical properties with controlled degradation.
Collapse
Affiliation(s)
- Rita G Fonseca
- CEMMPRE - Department of Chemical Engineering, University of Coimbra, 3030-790, Coimbra, Portugal
| | - Francesco De Bon
- CEMMPRE - Department of Chemical Engineering, University of Coimbra, 3030-790, Coimbra, Portugal
| | - Patrícia Pereira
- CEMMPRE - Department of Chemical Engineering, University of Coimbra, 3030-790, Coimbra, Portugal.,IPN - Instituto Pedro Nunes, Rua Pedro Nunes, 3030-199, Coimbra, Portugal
| | - Francisca M Carvalho
- ISR - Institute of Systems and Robotics, University of Coimbra, 3030-194, Coimbra, Portugal
| | - Marta Freitas
- ISR - Institute of Systems and Robotics, University of Coimbra, 3030-194, Coimbra, Portugal
| | - Mahmoud Tavakoli
- ISR - Institute of Systems and Robotics, University of Coimbra, 3030-194, Coimbra, Portugal
| | - Arménio C Serra
- CEMMPRE - Department of Chemical Engineering, University of Coimbra, 3030-790, Coimbra, Portugal
| | - Ana C Fonseca
- CEMMPRE - Department of Chemical Engineering, University of Coimbra, 3030-790, Coimbra, Portugal
| | - Jorge F J Coelho
- CEMMPRE - Department of Chemical Engineering, University of Coimbra, 3030-790, Coimbra, Portugal
| |
Collapse
|
23
|
Bitzer M, Voesch S, Albert J, Bartenstein P, Bechstein W, Blödt S, Brunner T, Dombrowski F, Evert M, Follmann M, La Fougère C, Freudenberger P, Geier A, Gkika E, Götz M, Hammes E, Helmberger T, Hoffmann RT, Hofmann WP, Huppert P, Kautz A, Knötgen G, Körber J, Krug D, Lammert F, Lang H, Langer T, Lenz P, Mahnken A, Meining A, Micke O, Nadalin S, Nguyen HP, Ockenga J, Oldhafer K, Paprottka P, Paradies K, Pereira P, Persigehl T, Plauth M, Plentz R, Pohl J, Riemer J, Reimer P, Ringwald J, Ritterbusch U, Roeb E, Schellhaas B, Schirmacher P, Schmid I, Schuler A, von Schweinitz D, Seehofer D, Sinn M, Stein A, Stengel A, Steubesand N, Stoll C, Tannapfel A, Taubert A, Trojan J, van Thiel I, Tholen R, Vogel A, Vogl T, Vorwerk H, Wacker F, Waidmann O, Wedemeyer H, Wege H, Wildner D, Wittekind C, Wörns MA, Galle P, Malek N. S3-Leitlinie: Diagnostik und Therapie biliärer Karzinome. Z Gastroenterol 2022; 60:219-238. [PMID: 35148562 DOI: 10.1055/a-1589-7638] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- M Bitzer
- Medizinische Klinik I, Universitätsklinikum Tübingen
| | - S Voesch
- Medizinische Klinik I, Universitätsklinikum Tübingen
| | - J Albert
- Abteilung für Gastroenterologie, Hepatologie und Endokrinologie, Robert-Bosch-Krankenhaus, Stuttgart
| | - P Bartenstein
- Klinik und Poliklinik für Nuklearmedizin, LMU Klinikum, München
| | - W Bechstein
- Klinik für Allgemein-, Viszeral-, Transplantations- und Thoraxchirurgie, Universitätsklinikum Frankfurt
| | - S Blödt
- AWMF-Geschäftsstelle, Berlin
| | - T Brunner
- Klinik für Strahlentherapie, Universitätsklinikum Magdeburg
| | - F Dombrowski
- Institut für Pathologie, Universitätsmedizin Greifswald
| | - M Evert
- Institut für Pathologie, Regensburg
| | - M Follmann
- Office des Leitlinienprogrammes Onkologie, c/o Deutsche Krebsgesellschaft e.V., Berlin
| | - C La Fougère
- Nuklearmedizin und Klinische Molekulare Bildgebung, Tübingen
| | | | - A Geier
- Medizinische Klinik und Poliklinik II, Universitätsklinikum Würzburg
| | - E Gkika
- Klinik für Strahlenheilkunde, Department für Radiologische Diagnostik und Therapie, Universitätsklinikum Freiburg
| | | | - E Hammes
- Lebertransplantierte Deutschland e. V., Ansbach
| | - T Helmberger
- Institut für Radiologie, Neuroradiologie und minimal-invasive Therapie, München Klinik Bogenhausen, München
| | - R T Hoffmann
- Institut und Poliklinik für Diagnostische und Interventionelle Radiologie, Dresden
| | - W P Hofmann
- Gastroenterologie am Bayerischen Platz, medizinisches Versorgungszentrum, Berlin
| | - P Huppert
- Radiologisches Zentrum, Max Grundig Klinik, Bühl
| | - A Kautz
- Deutsche Leberhilfe e.V., Köln
| | - G Knötgen
- Konferenz onkologischer Kranken- und Kinderkrankenpflege, Hamburg
| | - J Körber
- Klinik Nahetal, Fachklinik für onkologische Rehabilitation und Anschlussrehabilitation, Bad Kreuznach
| | - D Krug
- Klinik für Strahlentherapie, Universitätsklinikum Schleswig-Holstein, Kiel
| | | | - H Lang
- Klinik für Allgemein-, Viszeral und Transplantationschirurgie, Universitätsmedizin der Johannes Gutenberg-Universität Mainz
| | - T Langer
- Office des Leitlinienprogrammes Onkologie, c/o Deutsche Krebsgesellschaft e.V., Berlin
| | - P Lenz
- Universitätsklinikum Münster, Zentrale Einrichtung Palliativmedizin, Münster
| | - A Mahnken
- Klinik für Diagnostische und Interventionelle Radiologie, Universitätsklinikum Gießen und Marburg GmbH, Marburg
| | - A Meining
- Medizinische Klinik und Poliklinik II des Universitätsklinikums Würzburg
| | - O Micke
- Klinik für Strahlentherapie und Radioonkologie, Franziskus Hospital Bielefeld
| | - S Nadalin
- Universitätsklinik für Allgemein-, Viszeral- und Transplantationschirurgie, Universitätsklinikum Tübingen
| | | | - J Ockenga
- Medizinische Klinik II, Klinikum Bremen-Mitte, Bremen
| | - K Oldhafer
- Klinik für Leber-, Gallenwegs- und Pankreaschirurgie, Semmelweis Universität, Asklepios Campus Hamburg
| | - P Paprottka
- Abteilung für interventionelle Radiologie, Klinikum rechts der Isar der Technischen Universität München
| | - K Paradies
- Konferenz onkologischer Kranken- und Kinderkrankenpflege, Hamburg
| | - P Pereira
- Abteilung für interventionelle Radiologie, Klinikum rechts der Isar der Technischen Universität München
| | - T Persigehl
- Institut für Diagnostische und Interventionelle Radiologie, Universitätsklinikum Köln
| | | | - R Plentz
- Klinikum Bremen-Nord, Innere Medizin, Bremen
| | - J Pohl
- Interventionelles Endoskopiezentrum und Schwerpunkt Gastrointestinale Onkologie, Asklepios Klinik Altona, Hamburg
| | - J Riemer
- Lebertransplantierte Deutschland e. V., Bretzfeld
| | - P Reimer
- Institut für diagnostische und interventionelle Radiologie, Städtisches Klinikum Karlsruhe gGmbH, Karlsruhe
| | - J Ringwald
- Psychosomatische Medizin und Psychotherapie, Universitätsklinikum Tübingen
| | | | - E Roeb
- Medizinische Klinik II, Universitätsklinikum Gießen und Marburg GmbH, Gießen
| | - B Schellhaas
- Medizinische Klinik I, Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen
| | - P Schirmacher
- Pathologisches Institut, Universitätsklinikum Heidelberg
| | - I Schmid
- Zentrum Pädiatrische Hämatologie und Onkologie, Dr. von Haunersches Kinderspital, Klinikum der Universität München
| | - A Schuler
- Medizinische Klinik, Alb Fils Kliniken GmbH, Göppingen
| | | | - D Seehofer
- Klinik und Poliklinik für Viszeral-, Transplantations-, Thorax- und Gefäßchirurgie, Universitätsklinikum Leipzig
| | - M Sinn
- Medizinische Klinik II, Universitätsklinikum Hamburg-Eppendorf
| | - A Stein
- Hämatologisch-Onkologischen Praxis Eppendorf, Hamburg
| | - A Stengel
- Psychosomatische Medizin und Psychotherapie, Universitätsklinikum Tübingen
| | | | - C Stoll
- Klinik Herzoghöhe Bayreuth, Bayreuth
| | - A Tannapfel
- Institut für Pathologie der Ruhr-Universität Bochum am Berufsgenossenschaftlichen Universitätsklinikum Bergmannsheil, Bochum
| | - A Taubert
- Kliniksozialdienst, Universitätsklinikum Heidelberg, Bochum
| | - J Trojan
- Medizinische Klinik I, Universitätsklinikum Frankfurt, Frankfurt am Main
| | | | - R Tholen
- Deutscher Verband für Physiotherapie e. V., Köln
| | - A Vogel
- Klinik für Gastroenterologie, Hepatologie, Endokrinologie der Medizinischen Hochschule Hannover, Hannover
| | - T Vogl
- Universitätsklinikum Frankfurt, Institut für Diagnostische und Interventionelle Radiologie, Frankfurt
| | - H Vorwerk
- Klinik für Strahlentherapie, Universitätsklinikum Gießen und Marburg GmbH, Marburg
| | - F Wacker
- Institut für Diagnostische und Interventionelle Radiologie der Medizinischen Hochschule Hannover, Hannover
| | - O Waidmann
- Medizinische Klinik I, Universitätsklinikum Frankfurt, Frankfurt am Main
| | - H Wedemeyer
- Klinik für Gastroenterologie, Hepatologie und Endokrinologie Medizinische Hochschule Hannover, Hannover
| | - H Wege
- Medizinische Klinik und Poliklinik, Universitätsklinikum Hamburg-Eppendorf, Hamburg
| | - D Wildner
- Innere Medizin, Krankenhäuser Nürnberger Land GmbH, Lauf an der Pegnitz
| | - C Wittekind
- Institut für Pathologie, Universitätsklinikum Leipzig, Leipzig
| | - M A Wörns
- Medizinische Klinik und Poliklinik, Universitätsklinikum Mainz, Mainz
| | - P Galle
- Medizinische Klinik und Poliklinik, Universitätsklinikum Mainz, Mainz
| | - N Malek
- Medizinische Klinik I, Universitätsklinikum Tübingen, Tübingen
| |
Collapse
|
24
|
Bitzer M, Voesch S, Albert J, Bartenstein P, Bechstein W, Blödt S, Brunner T, Dombrowski F, Evert M, Follmann M, La Fougère C, Freudenberger P, Geier A, Gkika E, Götz M, Hammes E, Helmberger T, Hoffmann RT, Hofmann WP, Huppert P, Kautz A, Knötgen G, Körber J, Krug D, Lammert F, Lang H, Langer T, Lenz P, Mahnken A, Meining A, Micke O, Nadalin S, Nguyen HP, Ockenga J, Oldhafer K, Paprottka P, Paradies K, Pereira P, Persigehl T, Plauth M, Plentz R, Pohl J, Riemer J, Reimer P, Ringwald J, Ritterbusch U, Roeb E, Schellhaas B, Schirmacher P, Schmid I, Schuler A, von Schweinitz D, Seehofer D, Sinn M, Stein A, Stengel A, Steubesand N, Stoll C, Tannapfel A, Taubert A, Trojan J, van Thiel I, Tholen R, Vogel A, Vogl T, Vorwerk H, Wacker F, Waidmann O, Wedemeyer H, Wege H, Wildner D, Wittekind C, Wörns MA, Galle P, Malek N. S3-Leitlinie – Diagnostik und Therapie biliärer Karzinome. Z Gastroenterol 2022; 60:e186-e227. [PMID: 35148560 DOI: 10.1055/a-1589-7854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- M Bitzer
- Medizinische Klinik I, Universitätsklinikum Tübingen
| | - S Voesch
- Medizinische Klinik I, Universitätsklinikum Tübingen
| | - J Albert
- Abteilung für Gastroenterologie, Hepatologie und Endokrinologie, Robert-Bosch-Krankenhaus, Stuttgart
| | - P Bartenstein
- Klinik und Poliklinik für Nuklearmedizin, LMU Klinikum, München
| | - W Bechstein
- Klinik für Allgemein-, Viszeral-, Transplantations- und Thoraxchirurgie, Universitätsklinikum Frankfurt
| | - S Blödt
- AWMF-Geschäftsstelle, Berlin
| | - T Brunner
- Klinik für Strahlentherapie, Universitätsklinikum Magdeburg
| | - F Dombrowski
- Institut für Pathologie, Universitätsmedizin Greifswald
| | - M Evert
- Institut für Pathologie, Regensburg
| | - M Follmann
- Office des Leitlinienprogrammes Onkologie, c/o Deutsche Krebsgesellschaft e.V., Berlin
| | - C La Fougère
- Nuklearmedizin und Klinische Molekulare Bildgebung, Tübingen
| | | | - A Geier
- Medizinische Klinik und Poliklinik II, Universitätsklinikum Würzburg
| | - E Gkika
- Klinik für Strahlenheilkunde, Department für Radiologische Diagnostik und Therapie, Universitätsklinikum Freiburg
| | | | - E Hammes
- Lebertransplantierte Deutschland e. V., Ansbach
| | - T Helmberger
- Institut für Radiologie, Neuroradiologie und minimal-invasive Therapie, München Klinik Bogenhausen, München
| | - R T Hoffmann
- Institut und Poliklinik für Diagnostische und Interventionelle Radiologie, Dresden
| | - W P Hofmann
- Gastroenterologie am Bayerischen Platz, medizinisches Versorgungszentrum, Berlin
| | - P Huppert
- Radiologisches Zentrum, Max Grundig Klinik, Bühl
| | - A Kautz
- Deutsche Leberhilfe e.V., Köln
| | - G Knötgen
- Konferenz onkologischer Kranken- und Kinderkrankenpflege, Hamburg
| | - J Körber
- Klinik Nahetal, Fachklinik für onkologische Rehabilitation und Anschlussrehabilitation, Bad Kreuznach
| | - D Krug
- Klinik für Strahlentherapie, Universitätsklinikum Schleswig-Holstein, Kiel
| | | | - H Lang
- Klinik für Allgemein-, Viszeral und Transplantationschirurgie, Universitätsmedizin der Johannes Gutenberg-Universität Mainz
| | - T Langer
- Office des Leitlinienprogrammes Onkologie, c/o Deutsche Krebsgesellschaft e.V., Berlin
| | - P Lenz
- Universitätsklinikum Münster, Zentrale Einrichtung Palliativmedizin, Münster
| | - A Mahnken
- Klinik für Diagnostische und Interventionelle Radiologie, Universitätsklinikum Gießen und Marburg GmbH, Marburg
| | - A Meining
- Medizinische Klinik und Poliklinik II des Universitätsklinikums Würzburg
| | - O Micke
- Klinik für Strahlentherapie und Radioonkologie, Franziskus Hospital Bielefeld
| | - S Nadalin
- Universitätsklinik für Allgemein-, Viszeral- und Transplantationschirurgie, Universitätsklinikum Tübingen
| | | | - J Ockenga
- Medizinische Klinik II, Klinikum Bremen-Mitte, Bremen
| | - K Oldhafer
- Klinik für Leber-, Gallenwegs- und Pankreaschirurgie, Semmelweis Universität, Asklepios Campus Hamburg
| | - P Paprottka
- Abteilung für interventionelle Radiologie, Klinikum rechts der Isar der Technischen Universität München
| | - K Paradies
- Konferenz onkologischer Kranken- und Kinderkrankenpflege, Hamburg
| | - P Pereira
- Abteilung für interventionelle Radiologie, Klinikum rechts der Isar der Technischen Universität München
| | - T Persigehl
- Institut für Diagnostische und Interventionelle Radiologie, Universitätsklinikum Köln
| | | | - R Plentz
- Klinikum Bremen-Nord, Innere Medizin, Bremen
| | - J Pohl
- Interventionelles Endoskopiezentrum und Schwerpunkt Gastrointestinale Onkologie, Asklepios Klinik Altona, Hamburg
| | - J Riemer
- Lebertransplantierte Deutschland e. V., Bretzfeld
| | - P Reimer
- Institut für diagnostische und interventionelle Radiologie, Städtisches Klinikum Karlsruhe gGmbH, Karlsruhe
| | - J Ringwald
- Psychosomatische Medizin und Psychotherapie, Universitätsklinikum Tübingen
| | | | - E Roeb
- Medizinische Klinik II, Universitätsklinikum Gießen und Marburg GmbH, Gießen
| | - B Schellhaas
- Medizinische Klinik I, Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen
| | - P Schirmacher
- Pathologisches Institut, Universitätsklinikum Heidelberg
| | - I Schmid
- Zentrum Pädiatrische Hämatologie und Onkologie, Dr. von Haunersches Kinderspital, Klinikum der Universität München
| | - A Schuler
- Medizinische Klinik, Alb Fils Kliniken GmbH, Göppingen
| | | | - D Seehofer
- Klinik und Poliklinik für Viszeral-, Transplantations-, Thorax- und Gefäßchirurgie, Universitätsklinikum Leipzig
| | - M Sinn
- Medizinische Klinik II, Universitätsklinikum Hamburg-Eppendorf
| | - A Stein
- Hämatologisch-Onkologischen Praxis Eppendorf, Hamburg
| | - A Stengel
- Psychosomatische Medizin und Psychotherapie, Universitätsklinikum Tübingen
| | | | - C Stoll
- Klinik Herzoghöhe Bayreuth, Bayreuth
| | - A Tannapfel
- Institut für Pathologie der Ruhr-Universität Bochum am Berufsgenossenschaftlichen Universitätsklinikum Bergmannsheil, Bochum
| | - A Taubert
- Kliniksozialdienst, Universitätsklinikum Heidelberg, Bochum
| | - J Trojan
- Medizinische Klinik I, Universitätsklinikum Frankfurt, Frankfurt am Main
| | | | - R Tholen
- Deutscher Verband für Physiotherapie e. V., Köln
| | - A Vogel
- Klinik für Gastroenterologie, Hepatologie, Endokrinologie der Medizinischen Hochschule Hannover, Hannover
| | - T Vogl
- Universitätsklinikum Frankfurt, Institut für Diagnostische und Interventionelle Radiologie, Frankfurt
| | - H Vorwerk
- Klinik für Strahlentherapie, Universitätsklinikum Gießen und Marburg GmbH, Marburg
| | - F Wacker
- Institut für Diagnostische und Interventionelle Radiologie der Medizinischen Hochschule Hannover, Hannover
| | - O Waidmann
- Medizinische Klinik I, Universitätsklinikum Frankfurt, Frankfurt am Main
| | - H Wedemeyer
- Klinik für Gastroenterologie, Hepatologie und Endokrinologie Medizinische Hochschule Hannover, Hannover
| | - H Wege
- Medizinische Klinik und Poliklinik, Universitätsklinikum Hamburg-Eppendorf, Hamburg
| | - D Wildner
- Innere Medizin, Krankenhäuser Nürnberger Land GmbH, Lauf an der Pegnitz
| | - C Wittekind
- Institut für Pathologie, Universitätsklinikum Leipzig, Leipzig
| | - M A Wörns
- Medizinische Klinik und Poliklinik, Universitätsklinikum Mainz, Mainz
| | - P Galle
- Medizinische Klinik und Poliklinik, Universitätsklinikum Mainz, Mainz
| | - N Malek
- Medizinische Klinik I, Universitätsklinikum Tübingen, Tübingen
| |
Collapse
|
25
|
BEIRÃO B, Freitas M, Francisco J, Sousa C, Pereira P, Prata C, Castro R, Morgado T. POS-928 EFFICACY OF THE PFIZER/ BNT162b2 COVID-19 VACCINE IN PERITONEAL DIALYSIS PATIENTS. Kidney Int Rep 2022. [PMCID: PMC8854947 DOI: 10.1016/j.ekir.2022.01.968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
|
26
|
FRANCISCO J, Beirão B, Freitas M, Sousa C, Pereira P, Castro R, Morgado T. POS-939 EFFICACY OF BNT162b2 VACCINE IN PATIENTS UNDERGOING HEMODIALYSIS IN NORTH OF PORTUGAL. Kidney Int Rep 2022. [PMCID: PMC8854880 DOI: 10.1016/j.ekir.2022.01.979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
27
|
Amini S, Pereira P, Roulet J, Oliveira D, Rocha M. Degree of Conversion of Resin-Based Luting Materials Containing Alternative Photoinitiators. Dent Mater 2022. [DOI: 10.1016/j.dental.2021.12.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
28
|
Borzęcka W, Pereira P, Fernandes R, Trindade T, Torres T, Tome J. Spherical and rod shaped mesoporous nanosilicas for cancer-targeted and photosensitizers delivery in photodynamic therapy. J Mater Chem B 2022; 10:3248-3259. [DOI: 10.1039/d1tb02299g] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Mesoporous silica nanoparticles (MSNPs) have attracted much attention in many biomedical applications. One of the fields in which smart functional nanosystems have found wide application is in cancer treatment. Here,...
Collapse
|
29
|
Oliveira D, Rocha M, Zoidis P, Pereira P, Ribeiro A. The effect of different pulp capping methods on the intrapulpal temperature when using light-cured procedures. J Clin Exp Dent 2022; 14:e633-e638. [PMID: 36046163 PMCID: PMC9422968 DOI: 10.4317/jced.59779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 06/26/2022] [Indexed: 11/13/2022] Open
Abstract
Background To evaluate the intra-pulpal temperature during different direct pulp capping methods and light-cured procedures.
Material and Methods Class I preparations 5 mm long, 4 mm wide and 4 mm deep were performed in extracted third molars, leaving 0.5 mm of dentin at the pulpal floor with a 1 mm diameter of pulp exposure. Teeth were placed in a customized oral cavity chamber simulator in which the initial temperature was standardized at 36oC. The overall temperature variations (oC) in the pulp chamber during the light-activation processes were recorded live using an infrared camera (FLIR ONE PRO, FLIR Systems). The liners and bases evaluated were: Dycal (Dentisply), TheraCal LC (Bisco), Biodentin (Septodent), Vitrebond Plus (3M/ESPE), and Fuji IX GP (GC), followed by restoration with a bulk fill composite (EvoCeram Bulk Fill, Ivoclar Vivadent). All light-activation procedures were performed with the VALO Grand (Ultradent) light-curing unit. A power analysis was conducted to determine the sample size to provide a power of at least 0.8 with α=0.05. Statistical analyses were performed using ANOVA and Tukey’s test for multiple comparisons.
Results The intrapulpal temperature increased above a 10oC to 20oC threshold difference for all liners and bases that were light cured. When added as second layers, neither of those could provide thermal insulation following additional light-activated procedures (p=0.25). The higher the number of procedures requiring light-activation, the longer the pulp temperature remained in those increased temperature thresholds.
Conclusions For direct pulp capping procedures, a reduced number light activation procedures should be indicated to reduce the time intra-pulpal temperature rises above a 10oC threshold. Key words:Liner, base, calcium hydroxide, glass ionomer, dental adhesive, bulkfill composite.
Collapse
|
30
|
De Marco G, Brandão F, Pereira P, Pacheco M, Cappello T. Organ-Specific Metabolome Deciphering Cell Pathways to Cope with Mercury in Wild Fish (Golden Grey Mullet Chelon auratus). Animals (Basel) 2021; 12:79. [PMID: 35011185 PMCID: PMC8749613 DOI: 10.3390/ani12010079] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 12/22/2021] [Accepted: 12/28/2021] [Indexed: 12/11/2022] Open
Abstract
Metabolomics is a powerful approach in evaluating the health status of organisms in ecotoxicological studies. However, metabolomics data reflect metabolic variations that are attributable to factors intrinsic to the environment and organism, and it is thus crucial to accurately evaluate the metabolome of the tissue/organ examined when it is exposed to no stressor. The metabolomes of the liver and gills of wild golden grey mullet (Chelon auratus) from a reference area were analyzed and compared by proton nuclear magnetic resonance (1H NMR)-based metabolomics. Both organs were characterized by amino acids, carbohydrates, osmolytes, nucleosides and their derivatives, and miscellaneous metabolites. However, similarities and differences were revealed in their metabolite profile and related to organ-specific functions. Taurine was predominant in both organs due to its involvement in osmoregulation in gills, and detoxification and antioxidant protective processes in liver. Environmental exposure to mercury (Hg) triggered multiple and often differential metabolic alterations in fish organs. Disturbances in ion-osmoregulatory processes were highlighted in the gills, whereas differential impairments between fish organs were pointed out in energy-producing metabolic pathways, protein catabolism, membrane stabilization processes, and antioxidant defense system, reflecting the induction of organ-specific adaptive and defensive strategies. Overall, a strict correlation between metabolites and organ-specific functions of fish gills and liver were discerned in this study, as well as organ-specific cytotoxicity mechanisms of Hg in fish.
Collapse
Affiliation(s)
- Giuseppe De Marco
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98166 Messina, Italy;
| | - Fátima Brandão
- Centre for Environmental and Marine Studies (CESAM), Department of Biology, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal; (F.B.); (P.P.); (M.P.)
| | - Patrícia Pereira
- Centre for Environmental and Marine Studies (CESAM), Department of Biology, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal; (F.B.); (P.P.); (M.P.)
| | - Mário Pacheco
- Centre for Environmental and Marine Studies (CESAM), Department of Biology, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal; (F.B.); (P.P.); (M.P.)
| | - Tiziana Cappello
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98166 Messina, Italy;
| |
Collapse
|
31
|
Saraiva S, Pereira P, Paula CT, Rebelo RC, Coelho JFJ, Serra AC, Fonseca AC. Development of electrospun mats based on hydrophobic hydroxypropyl cellulose derivatives. Mater Sci Eng C Mater Biol Appl 2021; 131:112498. [PMID: 34857284 DOI: 10.1016/j.msec.2021.112498] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2021] [Revised: 10/06/2021] [Accepted: 10/13/2021] [Indexed: 12/21/2022]
Abstract
In this work, hydroxypropyl cellulose esters (HPCE) with long aliphatic chains were prepared and innovatively used in electrospinning to obtain hydroxypropyl cellulose (HPC)-based mats with enhanced resistance to moist environments. The described approach is very simple and does not require any post-treatment (e.g. cross-linking step) to overcome a major problem concerning the premature loss of properties of cellulose-based materials when in contact with moisture. HPCE-based electrospun mats were characterized in terms of their morphology, swelling ability and in vitro hydrolytic degradation. The mats exhibited a swelling capacity of over 115%, depending on the degree of substitution. The in vitro hydrolytic degradation tests showed the high structural integrity of the mats (< 5% weight loss) over a period of 30 days. The in vitro cytotoxicity tests showed that the mats of HPC esters are cytocompatible and promote the adhesion, proliferation and spreading of NIH3T3 fibroblast cells. These data suggest that the HPCE mats may be interesting materials for wound dressings, as well as for other tissue engineering applications.
Collapse
Affiliation(s)
- Sofia Saraiva
- University of Coimbra, CEMMPRE, Department of Chemical Engineering, Rua Sílvio Lima- Pólo II, 3030-290 Coimbra, Portugal
| | - Patrícia Pereira
- University of Coimbra, CEMMPRE, Department of Chemical Engineering, Rua Sílvio Lima- Pólo II, 3030-290 Coimbra, Portugal; IPN, Instituto Pedro Nunes, Associação para a Inovação e Desenvolvimento em Ciência e Tecnologia, Rua Pedro Nunes, 3030-199 Coimbra, Portugal
| | - C T Paula
- University of Coimbra, CEMMPRE, Department of Chemical Engineering, Rua Sílvio Lima- Pólo II, 3030-290 Coimbra, Portugal
| | - R C Rebelo
- University of Coimbra, CEMMPRE, Department of Chemical Engineering, Rua Sílvio Lima- Pólo II, 3030-290 Coimbra, Portugal
| | - Jorge F J Coelho
- University of Coimbra, CEMMPRE, Department of Chemical Engineering, Rua Sílvio Lima- Pólo II, 3030-290 Coimbra, Portugal
| | - Arménio C Serra
- University of Coimbra, CEMMPRE, Department of Chemical Engineering, Rua Sílvio Lima- Pólo II, 3030-290 Coimbra, Portugal
| | - Ana C Fonseca
- University of Coimbra, CEMMPRE, Department of Chemical Engineering, Rua Sílvio Lima- Pólo II, 3030-290 Coimbra, Portugal.
| |
Collapse
|
32
|
Paula CTB, Pereira P, Coelho JFJ, Fonseca AC, Serra AC. Development of light-degradable poly(urethane-urea) hydrogel films. Mater Sci Eng C Mater Biol Appl 2021; 131:112520. [PMID: 34857299 DOI: 10.1016/j.msec.2021.112520] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 10/20/2021] [Accepted: 10/22/2021] [Indexed: 12/19/2022]
Abstract
Biocompatible hydrogels are exciting platforms that have stood out in recent years for their outstanding potential for biomedical applications. For these applications, the ability of the material to respond to an external stimulus can be a relevant addition. This responsiveness allows the material to modify its physical properties in such a way that it can deliver molecules that support the healing process or allow easy removal of the films from the tissue. Among the polymers used to produce these systems, polyurethane (PU) and polyurethane-urea (PUU) are some of the most cited examples. In this work, a new hydrogel-sensitive PUU film is proposed. These films are prepared from polyethylene glycol (PEG) and contain a ROS-responsive telechelic β-aminoacrylate bond. The hydrogel films showed interesting mechanical and thermal properties, good water uptake and low cytotoxicity, which makes them suitable for biomedical applications. More importantly, the hydrogel films exhibited a light-degradable profile through an innovative ROS-mediated cleavage process, as indicated by the loss of mechanical properties.
Collapse
Affiliation(s)
- Carlos T B Paula
- CEMMPRE, Department of Chemical Engineering, University of Coimbra, Rua Sílvio Lima-Pólo II, 3030-790 Coimbra, Portugal
| | - Patrícia Pereira
- CEMMPRE, Department of Chemical Engineering, University of Coimbra, Rua Sílvio Lima-Pólo II, 3030-790 Coimbra, Portugal; IPN, Instituto Pedro Nunes, Associação para a Inovação e Desenvolvimento em Ciência e Tecnologia, Rua Pedro Nunes, 3030-199 Coimbra, Portugal
| | - Jorge F J Coelho
- CEMMPRE, Department of Chemical Engineering, University of Coimbra, Rua Sílvio Lima-Pólo II, 3030-790 Coimbra, Portugal
| | - Ana C Fonseca
- CEMMPRE, Department of Chemical Engineering, University of Coimbra, Rua Sílvio Lima-Pólo II, 3030-790 Coimbra, Portugal
| | - Arménio C Serra
- CEMMPRE, Department of Chemical Engineering, University of Coimbra, Rua Sílvio Lima-Pólo II, 3030-790 Coimbra, Portugal.
| |
Collapse
|
33
|
Pinto B, Pereira P, Ramalho R. Characterization of food intake in patients with psoriasis. Clin Nutr ESPEN 2021. [DOI: 10.1016/j.clnesp.2021.09.242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
34
|
|
35
|
Pereira P, Nascimento AM, de Souza BHS, Peñaflor MFGV. Silicon Supplementation of Maize Impacts Fall Armyworm Colonization and Increases Predator Attraction. Neotrop Entomol 2021; 50:654-661. [PMID: 34184235 DOI: 10.1007/s13744-021-00891-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Accepted: 06/16/2021] [Indexed: 06/13/2023]
Abstract
Supplementation with Silicon (Si) is well-known for increasing resistance of grasses to insect herbivores. Although the exact underlying mechanism remains unknown, Si accumulation interacts with the jasmonic acid-signalling pathway, which modulates herbivore-induced plant defences. We examined whether Si supplementation alters direct and induced indirect defences in maize plants in ways that deter the initial infestation by the fall armyworm Spodoptera frugiperda (JE Smith). We assessed the herbivore's oviposition preference, neonate and third-instar larval performance as well as the recruitment of a predator of young larvae, the flower bug Orius insidiosus (Say), by herbivore-induced plant volatiles (HIPVs). In choice tests, S. frugiperda deposited about two times more eggs on -Si than on +Si maize. The mortality of neonate S. frugiperda larvae was about sixfold higher in +Si compared to -Si plants, even though they consumed similar leaf area on both treatments. Although there were no mortality differences, Si supplementation also impacted third-instar larvae that gained about twofold less weight than those fed on -Si maize. In olfactometer assays, O. insidiosus was not attracted to volatiles of uninfested maize plants with or without Si supplementation, but it was attracted to those emitted by fall armyworm-infested plants, irrespective of whether plants received Si supplementation. However, when the flower bug could choose between the volatiles released from -Si and +Si fall armyworm-infested plants, it preferentially oriented to +Si fall armyworm-infested plant. Our results show that Si supplementation in maize may deter fall armyworm colonization because of greater direct defences and attractiveness of HIPVs to the flower bug.
Collapse
Affiliation(s)
- Patrícia Pereira
- Dept of Entomology, Agrarian Sciences College of Lavras (ESAL), Lavras Federal University, Lavras, MG, Brazil
| | - Amanda Maria Nascimento
- Dept of Entomology, Agrarian Sciences College of Lavras (ESAL), Lavras Federal University, Lavras, MG, Brazil
| | | | | |
Collapse
|
36
|
Dos Santos FM, Pflüger PF, Lazzarotto L, Uczay M, de Aguida WR, da Silva LS, Boaretto FBM, de Sousa JT, Picada JN, da Silva Torres IL, Pereira P. Gamma-Decanolactone Alters the Expression of GluN2B, A 1 Receptors, and COX-2 and Reduces DNA Damage in the PTZ-Induced Seizure Model After Subchronic Treatment in Mice. Neurochem Res 2021; 46:2066-2078. [PMID: 34019198 DOI: 10.1007/s11064-021-03345-7] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 04/05/2021] [Accepted: 05/12/2021] [Indexed: 11/26/2022]
Abstract
Gamma-decanolactone (GD) has been shown to reduce epileptic behavior in different models, inflammatory decreasing, oxidative stress, and genotoxic parameters. This study assessed the GD effect on the pentylenetetrazole (PTZ) model after acute and subchronic treatment. We evaluated the expression of the inflammatory marker cyclooxygenase-2 (COX-2), GluN2B, a subunit of the NMDA glutamate receptor, adenosine A1 receptor, and GD genotoxicity and mutagenicity. Male and female mice were treated with GD (300 mg/kg) for 12 days. On the tenth day, they were tested in the Hot Plate test. On the thirteenth day, all animals received PTZ (90 mg/kg), and epileptic behavior PTZ-induced was observed for 30 min. Pregabalin (PGB) (30 mg/kg) was used as a positive control. Samples of the hippocampus and blood were collected for Western Blotting analyses and Comet Assay and bone marrow to the Micronucleus test. Only the acute treatment of GD reduced the seizure occurrence and increased the latency to the first stage 3 seizures. Males treated with GD for 12 days demonstrated a significant increase in the expression of the GluN2B receptor and a decrease in the COX-2 expression. Acute and subchronic treatment with GD and PGB reduced the DNA damage produced by PTZ in males and females. There is no increase in the micronucleus frequency in bone marrow after subchronic treatment. This study suggests that GD, after 12 days, could not reduce PTZ-induced seizures, but it has been shown to protect against DNA damage, reduce COX-2 and increase GluN2B expression.
Collapse
Affiliation(s)
- Fernanda Marcelia Dos Santos
- Laboratory of Neuropharmacology and Preclinical Toxicology, Health Basic Sciences Institute, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Pricila Fernandes Pflüger
- Laboratory of Neuropharmacology and Preclinical Toxicology, Health Basic Sciences Institute, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Leticia Lazzarotto
- Laboratory of Neuropharmacology and Preclinical Toxicology, Health Basic Sciences Institute, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Mariana Uczay
- Laboratory of Neuropharmacology and Preclinical Toxicology, Health Basic Sciences Institute, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Wesley Roberto de Aguida
- Laboratory of Neuropharmacology and Preclinical Toxicology, Health Basic Sciences Institute, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Lisiane Santos da Silva
- Laboratory of Pain Pharmacology and Neuromodulation: Pre-Clinical Research. Postgraduate Program in Medical Sciences, School of Medicine, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | | | | | | | - Iraci Lucena da Silva Torres
- Laboratory of Pain Pharmacology and Neuromodulation: Pre-Clinical Research. Postgraduate Program in Medical Sciences, School of Medicine, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Patrícia Pereira
- Laboratory of Neuropharmacology and Preclinical Toxicology, Health Basic Sciences Institute, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil.
- Laboratory of Neuropharmacology and Preclinical Toxicology, Department of Pharmacology, Institute of Basic Health Sciences, Federal University of Rio Grande do Sul, Sarmento Leite 500/305, Porto Alegre, RS, CEP 90050-170, Brazil.
| |
Collapse
|
37
|
Queirós L, Monteiro L, Marques C, Pereira JL, Gonçalves FJM, Aschner M, Pereira P. Measurement of the Effects of Metals on Taxis-to-Food Behavior in Caenorhabditis elegans. Curr Protoc 2021; 1:e131. [PMID: 33974358 DOI: 10.1002/cpz1.131] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Chemosensation in nematodes is linked to processes that affect their ability to survive, such as the search for food and the avoidance of toxic substances. Since the 1970s, numerous studies have assessed chemotaxis in the nematode species Caenorhabditis elegans, focusing on a multitude of agents, including bacteria (food), ions, salts, hormones, volatile organic compounds, and, to a lesser extent, metal-contaminated medium/food. The few studies evaluating metal exposure have reported a variety of responses (neutral, attraction, avoidance), which generally appear to be contaminant and/or concentration specific. Differences in experimental designs, however, hinder appropriate comparison of the findings and attainment of firm conclusions. Therefore, we herein propose and describe a detailed protocol for the assessment of the effects of metals on taxis-to-food behavior in C. elegans. Distinct approaches are proposed in two innovative stages of testing to (1) screen metals' effects on taxis-to-food behavior and (2) classify the behavioral response as attraction/avoidance/indifference or preference. Use of such a standard protocol will allow for easy comparison across studies and direct interpretation of results. Findings using this model system can contribute to a deeper understanding of the real risks of metal contamination to nematodes and how such contaminants could impact ecosystems in general, given the key environmental roles that these organisms play. © 2021 Wiley Periodicals LLC. Basic Protocol: Assessing the effects of metal contamination on taxis-to-food behavior in Caenorhabditis elegans Support Protocol 1: Synchronization of C. elegans by hand-picking gravid worms Support Protocol 2: Synchronization of C. elegans by using a bleaching solution.
Collapse
Affiliation(s)
- Libânia Queirós
- Department of Biology & CESAM (Centre for Environmental and Marine Studies), University of Aveiro, Aveiro, Portugal
| | - Luana Monteiro
- Marine Biology Research Group, Biology Department, Faculty of Sciences, Ghent University, Ghent, Belgium
| | - Carlos Marques
- Department of Biology & CESAM (Centre for Environmental and Marine Studies), University of Aveiro, Aveiro, Portugal
| | - Joana L Pereira
- Department of Biology & CESAM (Centre for Environmental and Marine Studies), University of Aveiro, Aveiro, Portugal
| | - Fernando J M Gonçalves
- Department of Biology & CESAM (Centre for Environmental and Marine Studies), University of Aveiro, Aveiro, Portugal
| | - Michael Aschner
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, New York
| | - Patrícia Pereira
- Department of Biology & CESAM (Centre for Environmental and Marine Studies), University of Aveiro, Aveiro, Portugal
| |
Collapse
|
38
|
Abstract
Environmental pollution related to anthropogenic pressures, and the associated repercussions on public health, represent a worldwide problem. Thus, the study of the effects that environmental contaminants can pose to natural ecosystems and human health is of vital importance. Laboratory model organisms such as Caenorhabditis elegans have played a significant role in clarifying multilevel effects of those agents. Although the evaluation of contaminant effects at the behavioral level of organisms is an emerging approach in ecotoxicology, studies assessing chemotaxis behavior in C. elegans within the ecotoxicological research context are still scarce. Chemotaxis studies in C. elegans have contributed to the understanding of both the neuronal mechanisms involved in the behavioral effects triggered by environmental cues and the impact of contaminants on natural ecosystems. Its compact and well-characterized nervous system, as well as the availability of transgenic strains and molecular tools, allows a detailed examination of behavioral, molecular, and genetic chemosensation mechanisms. This overview provides a summary and general comparison of methods used to measure chemotaxis behavior in C. elegans, with the aim of helping researchers select the most suitable approach in their chemotaxis studies. We compare methods based on the type of chemical tested, advantages and drawbacks of the different approaches, and specific experimental goals. Lastly, we hope to encourage the evaluation of C. elegans chemotaxis behavior in ecotoxicology studies, as well as its potential integration in standardized protocols assessing environmental quality. © 2021 Wiley Periodicals LLC.
Collapse
Affiliation(s)
- Libânia Queirós
- Department of Biology & CESAM (Centre for Environmental and Marine Studies), University of Aveiro, 3810-193 Aveiro, Portugal
| | - Carlos Marques
- Department of Biology & CESAM (Centre for Environmental and Marine Studies), University of Aveiro, 3810-193 Aveiro, Portugal
| | - Joana L. Pereira
- Department of Biology & CESAM (Centre for Environmental and Marine Studies), University of Aveiro, 3810-193 Aveiro, Portugal
| | - Fernando J. M. Gonçalves
- Department of Biology & CESAM (Centre for Environmental and Marine Studies), University of Aveiro, 3810-193 Aveiro, Portugal
| | - Michael Aschner
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - Patrícia Pereira
- Department of Biology & CESAM (Centre for Environmental and Marine Studies), University of Aveiro, 3810-193 Aveiro, Portugal
| |
Collapse
|
39
|
Castro LS, Lobo GS, Pereira P, Freire MG, Neves MC, Pedro AQ. Interferon-Based Biopharmaceuticals: Overview on the Production, Purification, and Formulation. Vaccines (Basel) 2021; 9:328. [PMID: 33915863 PMCID: PMC8065594 DOI: 10.3390/vaccines9040328] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 03/20/2021] [Accepted: 03/22/2021] [Indexed: 12/17/2022] Open
Abstract
The advent of biopharmaceuticals in modern medicine brought enormous benefits to the treatment of numerous human diseases and improved the well-being of many people worldwide. First introduced in the market in the early 1980s, the number of approved biopharmaceutical products has been steadily increasing, with therapeutic proteins, antibodies, and their derivatives accounting for most of the generated revenues. The success of pharmaceutical biotechnology is closely linked with remarkable developments in DNA recombinant technology, which has enabled the production of proteins with high specificity. Among promising biopharmaceuticals are interferons, first described by Isaacs and Lindenmann in 1957 and approved for clinical use in humans nearly thirty years later. Interferons are secreted autocrine and paracrine proteins, which by regulating several biochemical pathways have a spectrum of clinical effectiveness against viral infections, malignant diseases, and multiple sclerosis. Given their relevance and sustained market share, this review provides an overview on the evolution of interferon manufacture, comprising their production, purification, and formulation stages. Remarkable developments achieved in the last decades are herein discussed in three main sections: (i) an upstream stage, including genetically engineered genes, vectors, and hosts, and optimization of culture conditions (culture media, induction temperature, type and concentration of inducer, induction regimens, and scale); (ii) a downstream stage, focusing on single- and multiple-step chromatography, and emerging alternatives (e.g., aqueous two-phase systems); and (iii) formulation and delivery, providing an overview of improved bioactivities and extended half-lives and targeted delivery to the site of action. This review ends with an outlook and foreseeable prospects for underdeveloped aspects of biopharma research involving human interferons.
Collapse
Affiliation(s)
- Leonor S. Castro
- CICECO–Aveiro Institute of Materials, Chemistry Department, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal; (L.S.C.); (G.S.L.); (M.G.F.)
| | - Guilherme S. Lobo
- CICECO–Aveiro Institute of Materials, Chemistry Department, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal; (L.S.C.); (G.S.L.); (M.G.F.)
| | - Patrícia Pereira
- Centre for Mechanical Engineering, Materials and Processes, Department of Chemical Engineering, University of Coimbra, Rua Sílvio Lima-Polo II, 3030-790 Coimbra, Portugal;
| | - Mara G. Freire
- CICECO–Aveiro Institute of Materials, Chemistry Department, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal; (L.S.C.); (G.S.L.); (M.G.F.)
| | - Márcia C. Neves
- CICECO–Aveiro Institute of Materials, Chemistry Department, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal; (L.S.C.); (G.S.L.); (M.G.F.)
| | - Augusto Q. Pedro
- CICECO–Aveiro Institute of Materials, Chemistry Department, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal; (L.S.C.); (G.S.L.); (M.G.F.)
| |
Collapse
|
40
|
Relvas-Silva M, Pinho AR, Lopes JG, Lixa J, Leite MJ, Sousa AN, Veludo V, Madeira D, Pereira P. Anatomy of the superficial peroneal nerve: Can we predict nerve location and minimize iatrogenic lesion? Morphologie 2021; 105:204-209. [PMID: 33642180 DOI: 10.1016/j.morpho.2020.09.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 09/23/2020] [Accepted: 09/24/2020] [Indexed: 11/17/2022]
Abstract
OBJECTIVE OF THE STUDY Knowledge of anatomical variations of the superficial peroneal nerve (SPN) may minimize iatrogenic insults. The aim of the investigation was to perform an anatomical description of the SPN. MATERIALS AND METHODS Twenty-three embalmed cadaver lower limbs were dissected. RESULTS The SPN emerged from the crural fascia about 6.3±7.7mm anteromedial to the anterior border of the fibula and 26.8±12.6mm anteromedial and 113.6±43.9mm superior to the tip of the lateral malleolus. The median point of bifurcation into two terminal branches was 13.0mm anteromedial to the anterior border of the fibula and 34.9±14.7mm anteromedial and 81.0±69.0mm superior to the tip of the lateral malleolus. The SPN was found between 5.76% and 7.70% of the individual's height proximal to the tip of the lateral malleolus, with an unpredictable branching pattern over the intermalleolar line. CONCLUSION A lateral ankle approach over the posterolateral surface of the fibula (posterior to the tip of the lateral malleolus) minimizes the risk of iatrogenic nerve lesion.
Collapse
Affiliation(s)
- M Relvas-Silva
- Orthopedics and Traumatology Unit; São João University Hospital Center, Porto, Portugal.
| | - A R Pinho
- Orthopedics and Traumatology Unit; São João University Hospital Center, Porto, Portugal
| | - J G Lopes
- Orthopedics and Traumatology Unit; São João University Hospital Center, Porto, Portugal
| | - J Lixa
- Orthopedics and Traumatology Unit; São João University Hospital Center, Porto, Portugal
| | - M J Leite
- Orthopedics and Traumatology Unit; São João University Hospital Center, Porto, Portugal
| | - A N Sousa
- Orthopedics and Traumatology Unit; São João University Hospital Center, Porto, Portugal
| | - V Veludo
- Orthopedics and Traumatology Unit; São João University Hospital Center, Porto, Portugal
| | - D Madeira
- Unit of Anatomy, Department of Biomedicine, Faculty of Medicine, University of Porto - Center for Health Technology and Services Research (CINTESIS), Porto, Portugal
| | - P Pereira
- Unit of Anatomy, Department of Biomedicine, Faculty of Medicine, University of Porto - Center for Health Technology and Services Research (CINTESIS), Porto, Portugal
| |
Collapse
|
41
|
Cruz C, Pedro AQ, Carvalho J, Santos T, Talhada D, Paiva A, Queiroz JA, Andrade M, Pinto M, Montenegro L, Delgado L, Pereira P. Nucleolin as a potential biomarker for canine malignant neoplasia. Res Vet Sci 2021; 135:297-303. [PMID: 33077166 DOI: 10.1016/j.rvsc.2020.10.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 10/02/2020] [Accepted: 10/07/2020] [Indexed: 01/03/2023]
Abstract
Human nucleolin (NCL) is a multifunctional protein that is involved in diverse pathological processes. Recent evidences have shown that NCL is markedly overexpressed on the surface of most human cancer cells when compared to normal cells, being overexpressed in several malignant cells. Based on the exposed, the purpose of this pilot study is to investigate the expression pattern of NCL in canine malignant neoplasia and control groups. NCL expression at both messenger RNA and protein levels in the subcellular fractions were respectively detected by RT-PCR and western blotting, allowing to infer the NCL positivity rate in canine neoplasia. The identity of NCL amplicons obtained by RT-PCR was confirmed by Sanger sequencing and found to correspond to Canis lupus familiaris. Using flow cytometry, the blood cells expressing NCL from canine neoplasms were also identified using several cell surface markers and their levels quantified. These results showed that NCL expressed in lymphocytes, monocytes and neutrophils in dogs with malignant neoplasia is higher (> 50%) when compared with the control group. We found an increased expression of surface and cytoplasmic NCL in canine malignant neoplasia group, while nuclear NCL is predominantly found in the control group. Overall, this study discloses and identifies for the first time the presence of NCL in canine blood.
Collapse
Affiliation(s)
- Carla Cruz
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal.
| | - Augusto Q Pedro
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - Josué Carvalho
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - Tiago Santos
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - Daniela Talhada
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - Artur Paiva
- Unidade de Gestão Operacional em Citometria, Centro Hospitalar e Universitário de Coimbra (CHUC), Portugal; Coimbra Institute for Clinical and Biomedical Research (iCBR), Faculty of Medicine, University of Coimbra, Coimbra, Portugal; Instituto Politécnico de Coimbra, ESTESC-Coimbra Health School, Ciências Biomédicas Laboratoriais, Portugal
| | - João A Queiroz
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
| | | | | | | | - Leonor Delgado
- Pathology Department, INNO Serviços Especializados em Veterinária, Braga, Portugal; Cancer Research Group, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde (IINFACTS), Instituto Universitário de Ciências da Saúde (IUCS), CESPU, Gandra, Portugal
| | - Patrícia Pereira
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal.
| |
Collapse
|
42
|
Carvalhais A, Pereira B, Sabato M, Seixas R, Dolbeth M, Marques A, Guilherme S, Pereira P, Pacheco M, Mieiro C. Mild Effects of Sunscreen Agents on a Marine Flatfish: Oxidative Stress, Energetic Profiles, Neurotoxicity and Behaviour in Response to Titanium Dioxide Nanoparticles and Oxybenzone. Int J Mol Sci 2021; 22:ijms22041567. [PMID: 33557180 PMCID: PMC7913899 DOI: 10.3390/ijms22041567] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 01/27/2021] [Accepted: 01/30/2021] [Indexed: 12/18/2022] Open
Abstract
UV filters are potentially harmful to marine organisms. Given their worldwide dissemination and the scarcity of studies on marine fish, we evaluated the toxicity of an organic (oxybenzone) and an inorganic (titanium dioxide nanoparticles) UV filter, individually and in a binary mixture, in the turbot (Scophthalmus maximus). Fish were intraperitoneally injected and a multi-level assessment was carried out 3 and 7 days later. Oxybenzone and titanium dioxide nanoparticles induced mild effects on turbot, both isolated and in mixture. Neither oxidative stress (intestine, liver and kidney) nor neurotoxicity (brain) was found. However, liver metabolic function was altered after 7 days, suggesting the impairment of the aerobic metabolism. An increased motility rate in oxybenzone treatment was the only behavioural alteration (day 7). The intestine and liver were preferentially targeted, while kidney and brain were unaffected. Both infra- and supra-additive interactions were perceived, with a toxicodynamic nature, resulting either in favourable or unfavourable toxicological outcomes, which were markedly dependent on the organ, parameter and post-injection time. The combined exposure to the UV filters did not show a consistent increment in toxicity in comparison with the isolated exposures, which is an ecologically relevant finding providing key information towards the formulation of environmentally safe sunscreen products.
Collapse
Affiliation(s)
- Ana Carvalhais
- CESAM and Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal; (A.C.); (B.P.); (R.S.); (A.M.); (S.G.); (P.P.); (M.P.)
| | - Bárbara Pereira
- CESAM and Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal; (A.C.); (B.P.); (R.S.); (A.M.); (S.G.); (P.P.); (M.P.)
| | - Mariangela Sabato
- Department of Biological and Environmental Sciences, Università degli Studi di Messina, 98166 Messina, Italy;
| | - Rafaela Seixas
- CESAM and Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal; (A.C.); (B.P.); (R.S.); (A.M.); (S.G.); (P.P.); (M.P.)
| | - Marina Dolbeth
- CIIMAR, University of Porto, 4450-208 Matosinhos, Portugal; or
| | - Ana Marques
- CESAM and Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal; (A.C.); (B.P.); (R.S.); (A.M.); (S.G.); (P.P.); (M.P.)
| | - Sofia Guilherme
- CESAM and Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal; (A.C.); (B.P.); (R.S.); (A.M.); (S.G.); (P.P.); (M.P.)
| | - Patrícia Pereira
- CESAM and Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal; (A.C.); (B.P.); (R.S.); (A.M.); (S.G.); (P.P.); (M.P.)
| | - Mário Pacheco
- CESAM and Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal; (A.C.); (B.P.); (R.S.); (A.M.); (S.G.); (P.P.); (M.P.)
| | - Cláudia Mieiro
- CESAM and Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal; (A.C.); (B.P.); (R.S.); (A.M.); (S.G.); (P.P.); (M.P.)
- Correspondence:
| |
Collapse
|
43
|
Queirós L, Martins AC, Krum BN, Ke T, Aschner M, Pereira JL, Gonçalves FJM, Milne GL, Pereira P. Assessing the neurotoxicity of the carbamate methomyl in Caenorhabditis elegans with a multi-level approach. Toxicology 2021; 451:152684. [PMID: 33508380 DOI: 10.1016/j.tox.2021.152684] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 12/04/2020] [Accepted: 01/13/2021] [Indexed: 01/19/2023]
Abstract
The neurotoxicity and developmental effects of a widely applied insecticide (methomyl) was investigated by a multi-level approach (behavior and biometry, biochemical alterations and neurodegeneration) in Caenorhabditis elegans upon a short-term exposure (1 h) and a post-exposure period (48 h). The 1-h exposure to sub-lethal concentrations of methomyl (lower than 0.320 g L-1; i.e. below the estimated LC10) triggered significant changes on motor behavior and development impairment. The type of movement was significantly altered in methomyl-exposed worms, as well as biometric parameters (worms frequently idle and moving more backwards than controls; small body area, length and wavelength). These effects were followed by an increase of acetylcholine levels. Interestingly, after the 48-h recovery period, movement of previously exposed worms was similar to controls, and a concentration-dependent reversion of biometric endpoints was recorded, pointing out the transient action of the carbamate in line with an apparent absence of cholinergic neurons damage. This study provided new insight on the neurotoxicity of methomyl by showing that effects on movement and development were transient, and apparently did not result in neurodegeneration in cholinergic neurons. Moreover, these findings reinforced the advantages of using C. elegans in a multi-level approach for pesticide effects assessment.
Collapse
Affiliation(s)
- L Queirós
- Department of Biology & CESAM (Centre for Environmental and Marine Studies), University of Aveiro, 3810-193, Aveiro, Portugal; Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY, 10461, USA.
| | - A C Martins
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY, 10461, USA
| | - B N Krum
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY, 10461, USA; Department of Physiology and Pharmacology, Federal University of Santa Maria, 97105-900, Santa Maria, RS, Brazil
| | - T Ke
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY, 10461, USA
| | - M Aschner
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY, 10461, USA; IM Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
| | - J L Pereira
- Department of Biology & CESAM (Centre for Environmental and Marine Studies), University of Aveiro, 3810-193, Aveiro, Portugal
| | - F J M Gonçalves
- Department of Biology & CESAM (Centre for Environmental and Marine Studies), University of Aveiro, 3810-193, Aveiro, Portugal
| | - G L Milne
- Vanderbilt Brain Institute, Vanderbilt University, Nashville, TN, 37240, USA
| | - P Pereira
- Department of Biology & CESAM (Centre for Environmental and Marine Studies), University of Aveiro, 3810-193, Aveiro, Portugal
| |
Collapse
|
44
|
Neves MC, Pereira P, Pedro AQ, Martins JC, Trindade T, Queiroz JA, Freire MG, Sousa F. Improved ionic-liquid-functionalized macroporous supports able to purify nucleic acids in one step. Mater Today Bio 2020; 8:100086. [PMID: 33319188 PMCID: PMC7723793 DOI: 10.1016/j.mtbio.2020.100086] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 10/28/2020] [Accepted: 11/02/2020] [Indexed: 11/16/2022] Open
Abstract
Nucleic acids are relevant biopolymers in therapy and diagnosis, for which their purity and biological activity are of crucial relevance. However, these features are difficult to achieve by cost-effective methods. Herein, we report the functionalization of a macroporous chromatographic support functionalized with an ionic liquid (IL) with remarkable performance to purify nucleic acids. An initial screening with distinct IL chemical structures supported in silica was carried out, allowing to identify the IL 1-methyl-3-propylimidazolium chloride as the most promising ligand. A chromatographic macroporous matrix able to be used in preparative liquid chromatography was then functionalized and binding/elution studies were performed. The IL 1-methyl-3-propylimidazolium chloride acts as a multimodal ligand with a remarkable dynamic binding capacity. This macroporous support allows the (one-step) purification of nucleic acids, namely small RNAs, ribosomal RNA, and genomic DNA, from a bacterial lysate, and can be regenerated and reused without compromising its separation performance.
Collapse
Affiliation(s)
- M C Neves
- CICECO - Aveiro Institute of Materials, Chemistry Department, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal
| | - P Pereira
- CICS-UBI - Health Sciences Research Centre, Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - A Q Pedro
- CICECO - Aveiro Institute of Materials, Chemistry Department, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal
| | - J C Martins
- CICS-UBI - Health Sciences Research Centre, Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - T Trindade
- CICECO - Aveiro Institute of Materials, Chemistry Department, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal
| | - J A Queiroz
- CICS-UBI - Health Sciences Research Centre, Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - M G Freire
- CICECO - Aveiro Institute of Materials, Chemistry Department, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal
| | - F Sousa
- CICS-UBI - Health Sciences Research Centre, Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
| |
Collapse
|
45
|
Chaves R, Correia L, Ramalho R, Pereira P. Food habits and body image perception changes during Covid-19 pandemic in Portugal. Clin Nutr ESPEN 2020. [DOI: 10.1016/j.clnesp.2020.09.643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
46
|
Correia L, Medeiros M, Chaves R, Pereira P, Ramalho R. Nutritional status of children in school age: A look of concern in an era of COVID-19 pandemic. Clin Nutr ESPEN 2020. [PMCID: PMC8490956 DOI: 10.1016/j.clnesp.2020.09.639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
47
|
Santo K, Marton P, Lapa M, Pereira P, Amaro E, Berwanger O. ICHealth: large-scale digital health data on evidence-based cardiovascular medications, hospitalizations and epidemiological characteristics of heart failure patients in Brazil. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.3490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Introduction
Heart failure (HF) is one of the main causes of morbimortality in Brazil. However, little is known about the characteristics of the Brazilian HF population assisted at the community level, including the use of HF medications and frequency of hospitalizations. ePHealth is an app-based large-scale digital data collection platform that currently has health data on more than 1.5 million people.
Purpose
To assess the use of evidence-based HF medications, hospitalizations and epidemiological characteristics of HF patients in Brazil.
Methods
This is an observational retrospective study of the digital health data collected using the ePHealth platform on individuals, who self-reported a diagnosis of HF. Data collected included sociodemographics, clinical data, risk factors, comorbidities, medications and hospitalizations.
Results
Data collected at more than 40,000 home visits on 5907 individuals with HF were analysed. Majority of them were female, aged 55 to 75 years and brown (Figure 1). About 36% were married, 20% were illiterate, 65% were retired and 66% earned ≤2 minimum wages. Mean BMI was 26.7 kg/m2 (SD 5.9), risk factors and comorbidities were frequent (Figure 1). The use of HF medications was very low (Table 1). There were 575 hospitalizations (9.7%), due to the main following reasons: probable or definite heart failure decompensation (89, 15.5%), heart attack (60, 10.4%), cardiovascular procedures (54, 9.4%) and stroke (42, 7.3%).
Conclusion
This data suggests that community-level use of evidence-based cardiovascular medications in a population of individuals with HF in Brazil is very low and that hospitalizations are frequent. This study also provides a better understanding of the characteristics of a population of HF individuals, using large-scale real-world data collected on a community-level via an entirely digital platform. ePHealth is a disruptive platform able to provide data on the burden of HF and other cardiovascular diseases, informing decisions on implementation of prevention and management programmes.
Figure 1. HF population characteristics
Funding Acknowledgement
Type of funding source: Private company. Main funding source(s): ePHealth
Collapse
Affiliation(s)
- K Santo
- Hospital Israelita Albert Einstein, Sao Paulo, Brazil
| | | | - M Lapa
- Hospital Israelita Albert Einstein, Sao Paulo, Brazil
| | | | - E Amaro
- Hospital Israelita Albert Einstein, Sao Paulo, Brazil
| | - O Berwanger
- Hospital Israelita Albert Einstein, Sao Paulo, Brazil
| |
Collapse
|
48
|
Castro LS, Pereira P, Passarinha LA, Freire MG, Pedro AQ. Enhanced performance of polymer-polymer aqueous two-phase systems using ionic liquids as adjuvants towards the purification of recombinant proteins. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.117051] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
49
|
Regner GG, Torres ILS, de Oliveira C, Pflüger P, da Silva LS, Scarabelot VL, Ströher R, de Souza A, Fregni F, Pereira P. Transcranial direct current stimulation (tDCS) affects neuroinflammation parameters and behavioral seizure activity in pentylenetetrazole-induced kindling in rats. Neurosci Lett 2020; 735:135162. [PMID: 32569808 DOI: 10.1016/j.neulet.2020.135162] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 06/07/2020] [Accepted: 06/14/2020] [Indexed: 10/24/2022]
Abstract
Despite the introduction of new antiepileptic drugs, about 30 % of patients with epilepsy are refractory to drug therapy. Thus, the search for non-pharmacological interventions such as transcranial direct current stimulation (tDCS) may be an alternative, either alone or in combination with low doses of anticonvulsants. This study evaluated the effect of anodal (a-tDCS) and cathodal tDCS (c-tDCS) on seizure behavior and neuroinflammation parameters. Rats were submitted to the kindling model induced by pentylenetetrazole (PTZ) using diazepam (DZP) as anticonvulsant standard. tDCS groups were submitted to 10 sessions of a-tDCS or c-tDCS or SHAM-tDCS. Every 3 days they received saline (SAL), low dose of DZP (alone or in combination with tDCS) or effective dose of DZP 30 min before administration of PTZ, totaling 16 days of protocol. Neither a-tDCS nor c-tDCS reduced the occurrence of clonic forelimb seizures (convulsive motor seizures - stage 3 by the adapted Racine scale we based on). Associated with DZP, c-tDCS (c-tDCS/DZP0.15) increased the latency to first clonic forelimb seizure on the 10th and 16th days. Hippocampal IL-1β levels were reduced by c-tDCS and c-tDCS/DZP0.15. In contrast, these treatments induced an increase in cortical IL-1β levels. Hippocampal TNF-α levels were not altered by c-tDCS or a-tDCS, but c-tDCS and c-tDCS/DZP0.15 increased those levels in cerebral cortex. Cortical NGF levels were increased by c-tDCS and c-tDCS/DZP0.15. a-tDCS/DZP0.15 reduced hippocampal BDNF levels and c-tDCS/DZP0.15 increased these levels in cerebral cortex. In conclusion, c-tDCS alone or in combination with a low dose of DZP showed to affect neuroinflammation, improving central neurotrophin levels and decreasing hippocampal IL-1β levels after PTZ-induced kindling without statistically significant effect on seizure behavior.
Collapse
Affiliation(s)
- Gabriela Gregory Regner
- Laboratory of Neuropharmacology and Preclinical Toxicology Laboratory, Postgraduate Program in Biological Sciences: Pharmacology and Therapeutics, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, 90050-170, Brazil; Laboratory of Pain Pharmacology and Neuromodulation: Preclinical Studies - Centro de Pesquisa Experimental (CPE), Hospital de Clínicas de Porto Alegre (HCPA), Porto Alegre, RS 90035-003, Brazil
| | - Iraci L S Torres
- Laboratory of Pain Pharmacology and Neuromodulation: Preclinical Studies - Centro de Pesquisa Experimental (CPE), Hospital de Clínicas de Porto Alegre (HCPA), Porto Alegre, RS 90035-003, Brazil; Postgraduate Program in Medical Sciences, School of Medicine, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil.
| | - Carla de Oliveira
- Laboratory of Pain Pharmacology and Neuromodulation: Preclinical Studies - Centro de Pesquisa Experimental (CPE), Hospital de Clínicas de Porto Alegre (HCPA), Porto Alegre, RS 90035-003, Brazil; Postgraduate Program in Medical Sciences, School of Medicine, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Pricila Pflüger
- Laboratory of Neuropharmacology and Preclinical Toxicology Laboratory, Postgraduate Program in Biological Sciences: Pharmacology and Therapeutics, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, 90050-170, Brazil
| | - Lisiane Santos da Silva
- Laboratory of Pain Pharmacology and Neuromodulation: Preclinical Studies - Centro de Pesquisa Experimental (CPE), Hospital de Clínicas de Porto Alegre (HCPA), Porto Alegre, RS 90035-003, Brazil
| | - Vanessa Leal Scarabelot
- Laboratory of Pain Pharmacology and Neuromodulation: Preclinical Studies - Centro de Pesquisa Experimental (CPE), Hospital de Clínicas de Porto Alegre (HCPA), Porto Alegre, RS 90035-003, Brazil
| | - Roberta Ströher
- Laboratory of Pain Pharmacology and Neuromodulation: Preclinical Studies - Centro de Pesquisa Experimental (CPE), Hospital de Clínicas de Porto Alegre (HCPA), Porto Alegre, RS 90035-003, Brazil
| | - Andressa de Souza
- Laboratory of Pain Pharmacology and Neuromodulation: Preclinical Studies - Centro de Pesquisa Experimental (CPE), Hospital de Clínicas de Porto Alegre (HCPA), Porto Alegre, RS 90035-003, Brazil
| | - Felipe Fregni
- Laboratory of Neuromodulation, Department of Physical Medicine & Rehabilitation, Spaulding Rehabilitation Hospital and Massachusetts General Hospital, Harvard University, Boston, United States
| | - Patrícia Pereira
- Laboratory of Neuropharmacology and Preclinical Toxicology Laboratory, Postgraduate Program in Biological Sciences: Pharmacology and Therapeutics, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, 90050-170, Brazil
| |
Collapse
|
50
|
Coscarelli C, Leoni L, Força F, Feris F, Nacao N, Fonseca F, Machado M, Raimundo R, Cavalcante C, Pereira P. Cost minimization of 3 methods of acquiring dental radiographic image. Eur J Public Health 2020. [DOI: 10.1093/eurpub/ckaa166.567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
The objective of this study is to develop a complete economic evaluation of 3 diagnostic techniques for interproximal radiographic, comparing the conventional radiographic technique, direct (CMOS) and indirect (PSP) digital techniques in the diagnosis of dental caries, from the perspective of SESC/Brazil (Social Trade Service). A complete cost-minimization economic assessment was performed. Initially, a systematic review was performed and it was verified that the accuracy for the diagnosis is similar between the techniques. The direct medical costs (related to the technique) were estimated by the bottom-up technique, taking into account the value of the clinical hours of the professionals, equipments and materials used. The time horizon was 10 years. The values were discounted at 3% per year, and a sensitivity analysis was prepared into two scenarios (one more pessimistic with costs 20% higher than estimated and one more optimistic with costs 20% lower). Direct digital radiography proved to be the option with the lowest cost (US$ 1.16), followed by semi-direct (US$ 1.35) and conventional (US$ 1.47). Conventional radiography presented the highest cost for the period (US$ 74,943.65), and the use of digital radiographs could promote savings of US$ 6,000.59 and US$ 15,448.35, if used by the semi-direct and direct method. respectively. Regarding the sensitivity analysis, in the most optimistic scenario of the time horizon there would be savings of US$ 4,800.47 (semi-direct digital) to US$ 12,446.09 (direct digital) compared to the traditional technique (films). In the most pessimistic scenario, these values vary in savings over the time horizon from US$ 7,200.71 (semi-direct) to US$ 18,538.02 (direct). It is concluded that the direct radiographic technique was the most cost effective and its incorporation in the SESC units is suggested.
Key messages
Digital dental radiography. Cost minimization analysis. Health technology assessment.
Collapse
Affiliation(s)
- C Coscarelli
- Gerência de Saúde da Divisão de Programas Sociais, SESC Serviço Social do Comércio Administração Regional Rio de Janeiro, Rio de Janeiro, Brazil
| | - L Leoni
- Gerência de Saúde da Divisão de Programas Sociais, SESC Serviço Social do Comércio Administração Regional Minas Gerais, Minas Gerais, Brazil
| | - F Força
- Unidades Móveis, SESC Serviço Social do Comércio Administração Regional Pará, Pará, Brazil
| | - F Feris
- Unidades Móveis, SESC Serviço Social do Comércio Administração Regional Rio de Janeiro, Rio de Janeiro, Brazil
| | - N Nacao
- Gerência de Saúde da Divisão de Programas Sociais, Serviço Social do Comércio Departamento Nacional, Rio de Janeiro, Brazil
| | - F Fonseca
- Gerência de Saúde da Divisão de Programas Sociais, Serviço Social do Comércio Departamento Nacional, Rio de Janeiro, Brazil
| | - M Machado
- Gerência de Saúde da Divisão de Programas Sociais, Serviço Social do Comércio Departamento Nacional, Rio de Janeiro, Brazil
| | - R Raimundo
- Communiy Dentistry Departament, Piracicaba Dental School University of Campinas, São Paulo, Brazil
| | - C Cavalcante
- Communiy Dentistry Departament, Piracicaba Dental School University of Campinas, São Paulo, Brazil
| | - P Pereira
- Communiy Dentistry Departament, Piracicaba Dental School University of Campinas, São Paulo, Brazil
| |
Collapse
|