1
|
Sengupta S, Tubio CR, Pinto RS, Barbosa J, Silva MM, Gonçalves R, Kundu M, Lanceros-Mendez S, Costa CM. Ternary composites of poly(vinylidene fluoride-co-hexafluoropropylene) with silver nanowires and titanium dioxide nanoparticles as separator membranes for lithium-ion batteries. J Colloid Interface Sci 2024; 668:25-36. [PMID: 38669993 DOI: 10.1016/j.jcis.2024.04.149] [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: 03/14/2024] [Revised: 04/12/2024] [Accepted: 04/21/2024] [Indexed: 04/28/2024]
Abstract
In the realm of polymer composites, there is growing interest in the use of mora than one filler for achieving multifunctional properties. In this work, a composite separator membrane has been developed for lithium-ion battery application, by incorporating conductive silver nanowires (AgNWs) and titanium dioxide (TiO2) nanoparticles into a poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) polymer matrix. The composite membranes were manufactured by solvent casting and thermally induced phase separation, with total filler content varying up to 10 wt%. The ternary composites composites present improved mechanical characteristics, ionic conductivity and lithium transfer number compared to the neat polymer matrix. On the other hand, the filler type and content within the composite has little bearing on the morphology, polymer phase, or thermal stability. Once applied as a separator in lithium-ion batteries, the highest discharge capacity value was obtained for the 5 wt% AgNWs/5 wt% TiO2/PVDF-HFP membrane at different C-rates, benefiting from the synergetic effect from both fillers. This work demonstrates that higher battery performance can be achieved for next-generation lithium-ion batteries by using separator membranes based on ternary composites.
Collapse
Affiliation(s)
- S Sengupta
- Electrochemial Energy Storage Laboratory, Department of Chemistry, SRM Institute of Science and Technology, Chennai, India
| | - C R Tubio
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain
| | - R S Pinto
- Centre of Chemistry, University of Minho, 4710-057 Braga, Portugal; Centre of Physics Universities of Minho and Porto, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | - J Barbosa
- Centre of Chemistry, University of Minho, 4710-057 Braga, Portugal
| | - M M Silva
- Centre of Chemistry, University of Minho, 4710-057 Braga, Portugal
| | - R Gonçalves
- Centre of Chemistry, University of Minho, 4710-057 Braga, Portugal
| | - M Kundu
- Electrochemial Energy Storage Laboratory, Department of Chemistry, SRM Institute of Science and Technology, Chennai, India; International Iberian Nanotechnology Laboratory (INL), Av. Mestre Jose Veiga, 4715-330 Braga, Portugal.
| | - S Lanceros-Mendez
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain; Centre of Physics Universities of Minho and Porto, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal; Laboratory of Physics for Materials and Emergent Technologies, LapMET, University of Minho, Braga 4710-057, Portugal; Ikerbasque, Basque Foundation for Science, 48009 Bilbao, Spain
| | - C M Costa
- Centre of Physics Universities of Minho and Porto, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal; Laboratory of Physics for Materials and Emergent Technologies, LapMET, University of Minho, Braga 4710-057, Portugal; Institute of Science and Innovation for Bio-Sustainability (IB-S), University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal.
| |
Collapse
|
2
|
Alencastre-Santos AB, Gonçalves R, Correia LL, Brito D, Oprea M, Vieira TB. The effect of urbanization on species composition and trophic guilds of bats (Mammalia, Chiroptera) in the Brazilian Savanna. BRAZ J BIOL 2024; 84:e275828. [PMID: 38597516 DOI: 10.1590/1519-6984.275828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Accepted: 10/26/2023] [Indexed: 04/11/2024] Open
Abstract
Urban environments present less environmental heterogeneity in relation to the natural ones, affecting the biodiversity of bats and the ecological processes in which they participate. In this way, we will identify how urbanization influences the structure of bat communities in the municipality of Goiânia, Goiás, Brazil. We compared species composition, guilds and bat richness in a gradient that crossed urban, semi-urban and natural areas in the municipality of Goiânia, contained in the Cerrado biome. We captured a total of 775 bats of 16 species distributed in three families. Urban areas had a higher species abundance, while semi-urban areas had a higher species richness. The three types of environments have different compositions, the urban one being more homogeneous, the fauna in these areas is composed of generalist species, which benefit from this process. The diversity present in semi-urban areas is a consequence of the intersection between urban and natural fauna, which is why urban expansion needs to occur in a planned manner to minimize the impacts of this process and ensure the maintenance of biodiversity.
Collapse
Affiliation(s)
- A B Alencastre-Santos
- Universidade Federal do Pará - UFPA, Programa de Pós-graduação em Zoologia - PPGZOOL, Belém, PA, Brasil
| | - R Gonçalves
- Universidade Federal de Goiás - UFG, Instituto de Ciências Biológicas - ICB, Goiânia, GO, Brasil
| | - L L Correia
- Universidade Federal do Pará - UFPA, Faculdade de Ciências Biológicas - FCB, Laboratório de Ecologia, Altamira, PA, Brasil
| | - D Brito
- Universidade Federal de Goiás - UFG, Instituto de Ciências Biológicas - ICB, Goiânia, GO, Brasil
| | - M Oprea
- Universidade Federal de Goiás - UFG, Instituto de Ciências Biológicas - ICB, Goiânia, GO, Brasil
| | - T B Vieira
- Universidade Federal do Pará - UFPA, Faculdade de Ciências Biológicas - FCB, Laboratório de Ecologia, Altamira, PA, Brasil
| |
Collapse
|
3
|
De Sousa R, Solis C, Silva I, Gonçalves R. An Anxious Heart: The Relation Between Cardiovascular Disease and Prevalence of Anxiety Symptoms. Eur Psychiatry 2022. [PMCID: PMC9567998 DOI: 10.1192/j.eurpsy.2022.1764] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Introduction Cardiovascular disease represent the leading cause of death worldwide, and is also responsible for the consumption of many medical resources, work absenteeism and worse Quality of Life. On the other hand, psychiatric diseases have recently gained more relevance worldwide as one of the principal causes of disability. Objectives Evaluate a possible relationship between cardiovascular risk factors (CVRF) and anxious or depressive symptoms. Methods Observational and cross-sectional study in a non-probabilistic and convenience sample, composed by patients followed on five primary healthcare facilites, who voluntarily accepted to answer the questionnaire through an interview, between July 2020 and January 2021. After an informed consent, a questionnaire was carried out including sociodemographic characterization, presence of cardiovascular disease and/or cardiovascular risk factors and the Portuguese version of HADS. Descriptive and inferential statistics were performed, using Mann-Whitney U test. A value of p<0,05 was considered statistically significant. Results Sample of 179 people, 53,1% female, with an average age of 51,05 ± 22,02 years, in which 57,5% had one or more CVRF and 59,8% had CVD and/or CVFR and the most prevalent CVRF were hypertension (48%) and dyslipidemia (43,6%). There was a statistically significant relationship between diabetes and anxiety (p<0,05). Conclusions There was a greater prevalence of anxiety symptoms in people with diabetes compared to people without diabetes. This suggests the importance of giving attention to anxiety in patients with diabetes, given the relevance of this comorbidity in their quality of life. The main limitation of the study is related with the sample size. Disclosure No significant relationships.
Collapse
|
4
|
Gonçalves R, Lanceros-Méndez S, Costa C. Electrode fabrication process and its influence in lithium-ion battery performance: State of the art and future trends. Electrochem commun 2022. [DOI: 10.1016/j.elecom.2022.107210] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
|
5
|
Fernandes S, Rodrigues da Silva E, New York B, Macedo P, Gonçalves R, Camara S, Larco R, Maciel A. Cutoff Points for Grip Strength in Screening for Sarcopenia in Community-Dwelling Older-Adults: A Systematic Review. J Nutr Health Aging 2022; 26:452-460. [PMID: 35587757 DOI: 10.1007/s12603-022-1788-6] [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] [Indexed: 11/29/2022]
Abstract
BACKGROUND Currently, different cutoff points for handgrip strength (HGS) have been used to estimate the prevalence of sarcopenia. In addition, the variability of equipment and protocols for this assessment can significantly influence the early detection of this important public health problem. Thus, this review aims to identify the different cutoff points for HGS adopted for older men and women in screening for sarcopenia. OBJECTIVES this review aims to identify the different cutoff points for HGS adopted for older men and women in screening for sarcopenia. METHODS In accordance with the PRISMA 2020 recommendations, which included published studies from the last 10 years, from 6 databases, in 3 different languages. RESULTS 19.730 references were identified, of which 62 were included for the review. All references analyzed used algorithms and definitions of sarcopenia already known in the literature. Of the studies found, 16 chose to develop cutoff values for HGS based on their own population. The variation in cutoff points was evident when compared between gender and regions of the world. CONCLUSION It has become evident that there is a variability of normative values for HGS in sarcopenia screening. In addition, this systematic review shows the difference in the cutoff points used between the consensuses and those developed for each population.
Collapse
Affiliation(s)
- S Fernandes
- Sabrina Fernandes, Universidade Federal do Rio Grande do Norte, Brazil,
| | | | | | | | | | | | | | | |
Collapse
|
6
|
Zanatta AP, Gonçalves R, Ourique da Silva F, Pedrosa RC, Zanatta L, Bouraïma-Lelong H, Delalande C, Mena Barreto Silva FR. Estradiol and 1α,25(OH) 2 vitamin D 3 share plasma membrane downstream signal transduction through calcium influx and genomic activation in immature rat testis. Theriogenology 2021; 172:36-46. [PMID: 34091204 DOI: 10.1016/j.theriogenology.2021.05.030] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Revised: 05/24/2021] [Accepted: 05/25/2021] [Indexed: 01/06/2023]
Abstract
The aim of this study was to investigate the rapid response pathway and gene and protein expression profiles of the rat testis in response to estradiol (E2) and 1α,25(OH)2 vitamin D3 (1,25-D3), to understand how they mediate their effects on the first spermatogenic wave. To do this, we compared the effects of 1,25-D3 and E2 on 45calcium(Ca2+) uptake and the involvement of estrogen receptors (ESR) in their rapid responses. Additionally, we studied the downstream signal transduction effects of 1,25-D3 and E2 on cyclin A1/B1 and cellular cycle protein expression. As previously observed for 1,25-D3, E2 also increased 45Ca2+ uptake in immature rat testes via voltage-dependent Ca2+ channels, Ca2+-dependent chloride channels and via the activation of protein kinase C, protein kinase A and mitogen-activated protein kinase kinase (MEK). Elevated aromatase expression by testes was observed in the presence of 1,25-D3 and both hormones decreased ESR mRNA expression. Furthermore, 1,25-D3 and E2 diminished cyclin A1 mRNA expression, but E2 did not affect cyclin B1 mRNA levels. Consistent with these findings, the immunocontent of cyclin A1 and B1 in the testes was also increased by 1,25-D3 and E2. 1,25-D3 increased expressions of the p16 and p53 proteins, supporting the anti-proliferative and pro-apoptotic properties of 1,25-D3, while E2 also augmented p16. Data indicate that both hormones trigger rapid responses at the plasma membrane that may control the expression of gene and proteins related to cell cycle regulation, and thereby modulate spermatogenesis.
Collapse
Affiliation(s)
- Ana Paula Zanatta
- Laboratório de Hormônios & Transdução de Sinais, Departamento de Bioquímica, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil; Normandie Univ, UNICAEN, INRA, OeReCa, 14000, Caen, France
| | - Renata Gonçalves
- Laboratório de Hormônios & Transdução de Sinais, Departamento de Bioquímica, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Fabiana Ourique da Silva
- Laboratório de Bioquímica Experimental (LABIOEX), Departamento de Bioquímica, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Rozangela Curi Pedrosa
- Laboratório de Bioquímica Experimental (LABIOEX), Departamento de Bioquímica, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Leila Zanatta
- Departamento de Enfermagem, Centro de Educação Superior do Oeste, Universidade do Estado de Santa Catarina - UDESC, Chapecó, SC, Brazil
| | | | | | - Fátima Regina Mena Barreto Silva
- Laboratório de Hormônios & Transdução de Sinais, Departamento de Bioquímica, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil.
| |
Collapse
|
7
|
Ryan D, Pérez-Accino J, Gonçalves R, Czopowicz M, Bertolani C, Tabar MD, Puig J, Ros C, Suñol A. Clinical findings, neurological manifestations and survival of dogs with insulinoma: 116 cases (2009-2020). J Small Anim Pract 2021; 62:531-539. [PMID: 33724496 DOI: 10.1111/jsap.13318] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 12/23/2020] [Accepted: 01/25/2021] [Indexed: 01/30/2023]
Abstract
OBJECTIVES To review the clinical findings and outcome in dogs diagnosed with insulinoma, and to assess which factors are predictors of overall survival. Additionally, to describe the neurological manifestations of this population and their correlation with survival. MATERIALS AND METHODS Retrospective multicentric study of canine insulinoma cases (2009 to 2020). Signalment, clinical history, neurological examination, diagnostic findings, treatment and outcome were obtained from clinical records. Univariate and multivariate analyses were used to compare the overall survival. RESULTS One hundred and sixteen cases were included. Median duration of clinical signs before presentation was 1.5 months. The most common presenting clinical signs were weakness (59.5%), epileptic seizures (33.6%) and changes in consciousness or behaviour (27.6%). Three dogs were suspected to have paroxysmal dyskinesia. Thirty-two dogs had an abnormal neurological examination, most commonly showing obtundation (28.1%), decreased withdrawal reflexes (21.9%) and absent menace response (18.8%). Overall survival for dogs undergoing surgery (20 months) was significantly longer than in medically treated (8 months; adjusted hazard ratio: 0.33; 95% confidence interval: 0.18, 0.59). Presence of metastases was the only other variable associated with prognosis (adjusted hazard ratio 1.72; 95% confidence interval: 1.02, 2.91). CLINICAL SIGNIFICANCE Clinical signs of canine insulinoma are vague and non-specific. Weakness, epileptic seizures and changes in mentation or behaviour were the most commonly reported. Obtunded mentation and forebrain neurolocalisation were the main neurological manifestations. Dogs undergoing surgery had a longer overall survival compared to medically treated cases, and dogs with metastasis had a shorter overall survival regardless of treatment modality. Abnormalities in the neurological examination did not correlate with prognosis.
Collapse
Affiliation(s)
- D Ryan
- Royal (Dick) School of Veterinary Studies, The University of Edinburgh, Easter Bush Veterinary Centre, Midlothian, EH25 9RG, UK
| | - J Pérez-Accino
- Royal (Dick) School of Veterinary Studies, The University of Edinburgh, Easter Bush Veterinary Centre, Midlothian, EH25 9RG, UK
| | - R Gonçalves
- Small Animal Teaching Hospital, University of Liverpool, Leahurst, Neston, CH64 7TE, UK
| | - M Czopowicz
- Division of Veterinary Epidemiology and Economics, Institute of Veterinary Medicine, Warsaw University of Life Sciences, Warsaw, 02-776, Poland
| | - C Bertolani
- Internal Medicine Service, Hospital Veterinari Canis Mallorca, Palma, 07010, Spain
| | - M D Tabar
- Internal Medicine Service, Hospital Veterinario San Vincente, Alicante, 03690, Spain
| | - J Puig
- Internal Medicine Service, Ars Veterinaria, Barcelona, 08034, Spain
| | - C Ros
- Hospital Veterinario UCV, Universidad Católica de Valencia, Valencia, 46018, Spain
| | - A Suñol
- Royal (Dick) School of Veterinary Studies, The University of Edinburgh, Easter Bush Veterinary Centre, Midlothian, EH25 9RG, UK
| |
Collapse
|
8
|
Rodriguez-Carrasco M, Libânio D, Pimentel-Nunes P, Barreiro P, Ferreira A, Küttner-Magalhães R, Pinho R, Boal Carvalho P, Areia M, Lage J, Serrano M, Silva J, Dias-Pereira A, Carvalho L, Cadime AT, Cotter J, Carvalho J, Pedroto I, Gonçalves R, Chagas C, Dinis-Ribeiro M. Endoscopic Submucosal Dissection: A Country Implementation Experience and Results. ESGE Days 2021 2021. [DOI: 10.1055/s-0041-1724382] [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: 09/02/2023]
Affiliation(s)
| | - D Libânio
- Portuguese Oncology Institute of Porto, Gastroenterology Department
- Faculty of Medicine, University of Porto, MEDCIDS - Department of Community Medicine, Health Information and Decision
| | - P Pimentel-Nunes
- Portuguese Oncology Institute of Porto, Gastroenterology Department
- Faculty of Medicine, University of Porto, MEDCIDS - Department of Community Medicine, Health Information and Decision
- Faculty of Medicine, University of Porto, Department of Surgery and Physiology
| | - P Barreiro
- Lisboa Ocidental Hospital Centre, Egas Moniz Hospital, Gastroenterology Department
- Lusíadas Hospital, Gastroenterology Department
| | - A Ferreira
- Hospital of Braga, Gastroenterology Department
| | | | - R Pinho
- Vila Nova de Gaia Hospital Centre, Gastroenterology Department
| | | | - M Areia
- Portuguese Oncology Institute of Coimbra, Gastroenterology Department
| | - J Lage
- Trás-os-Montes e Alto Douro Hospital Centre, Gastroenterology Department
| | - M Serrano
- Portuguese Oncology Institute of Lisbon, Gastroenterology Department
| | - J Silva
- Portuguese Oncology Institute of Lisbon, Gastroenterology Department
| | - A Dias-Pereira
- Portuguese Oncology Institute of Lisbon, Gastroenterology Department
| | - L Carvalho
- Trás-os-Montes e Alto Douro Hospital Centre, Gastroenterology Department
| | - AT Cadime
- Portuguese Oncology Institute of Coimbra, Gastroenterology Department
| | - J Cotter
- Senhora da Oliveira Hospital, Gastroenterology Department
| | - J Carvalho
- Vila Nova de Gaia Hospital Centre, Gastroenterology Department
| | - I Pedroto
- Porto University Hospital Centre, Gastroenterology Department
| | - R Gonçalves
- Hospital of Braga, Gastroenterology Department
| | - C Chagas
- Lisboa Ocidental Hospital Centre, Egas Moniz Hospital, Gastroenterology Department
| | - M Dinis-Ribeiro
- Portuguese Oncology Institute of Porto, Gastroenterology Department
- Faculty of Medicine, University of Porto, MEDCIDS - Department of Community Medicine, Health Information and Decision
| |
Collapse
|
9
|
Martins PM, Salazar H, Aoudjit L, Gonçalves R, Zioui D, Fidalgo-Marijuan A, Costa CM, Ferdov S, Lanceros-Mendez S. Crystal morphology control of synthetic giniite for enhanced photo-Fenton activity against the emerging pollutant metronidazole. Chemosphere 2021; 262:128300. [PMID: 33182084 DOI: 10.1016/j.chemosphere.2020.128300] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 09/07/2020] [Accepted: 09/08/2020] [Indexed: 06/11/2023]
Abstract
Metronidazole (MNZ) is a recalcitrant antibiotic with toxic and carcinogenic effects in aquatic environments. In this work, Fe5(PO4)4(OH)3·2H2O (giniite) particles were synthesised with three different alkaline cations (Li+, Na+ and K+) and used as Fenton catalysts for MNZ removal. It is shown that the addition of different cations during the hydrothermal synthesis process promote different morphologies from asterisk-like to flower-like and branches-like, maintaining the crystalline structure of pure giniite. The photo-Fenton activity of these particles was then evaluated through the degradation of MNZ under sunlight radiation for 9 h. The results indicate that the alkaline cation has a predominant role in the photo-Fenton efficiency, as demonstrated by the superior degradation efficiencies of Na@giniite particles (91.2% and 72.5% with giniite concentration of 0.2 g L-1 and 0.07 g L-1, respectively), related with its high surface area (10.7 m2 g-1). Thus, it is demonstrated the suitability of Na@giniite particles as Fenton catalyst for MNZ removal from water.
Collapse
Affiliation(s)
- P M Martins
- Centre/Department of Physics, University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal; Centre/Department of Chemistry, University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal; IB-S - Institute for Research and Innovation on Bio-Sustainability, University of Minho, 4710-057, Braga, Portugal.
| | - H Salazar
- Centre/Department of Physics, University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal; Centre/Department of Chemistry, University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal; IB-S - Institute for Research and Innovation on Bio-Sustainability, University of Minho, 4710-057, Braga, Portugal
| | - L Aoudjit
- Unité de Développement des équipements Solaires, UDES /Centre de Développement des Energies Renouvelables, CDER, Bou Ismail, 42415, W. Tipaza, Algeria
| | - R Gonçalves
- Centre/Department of Chemistry, University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal
| | - D Zioui
- Unité de Développement des équipements Solaires, UDES /Centre de Développement des Energies Renouvelables, CDER, Bou Ismail, 42415, W. Tipaza, Algeria
| | - A Fidalgo-Marijuan
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940, Leioa, Spain
| | - C M Costa
- Centre/Department of Physics, University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal; Centre/Department of Chemistry, University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal
| | - S Ferdov
- Centre/Department of Physics, University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal
| | - S Lanceros-Mendez
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940, Leioa, Spain; IKERBASQUE, Basque Foundation for Science, 48013, Bilbao, Spain.
| |
Collapse
|
10
|
Wanderlind ML, Gonçalves R, Tomasi CD, Dal-Pizzol F, Ritter C. Association of neurogranin with delirium among critically ill patients. Biomark Med 2020; 14:1613-1617. [PMID: 33336596 DOI: 10.2217/bmm-2020-0328] [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: 12/13/2022] Open
Abstract
Background: Neurogranin (Ng) concentrates at dendritic spines. In patients with Alzheimer disease Ng levels are elevated. The role of Ng in delirium development has not been assessed, therefore we hypothesized that Ng levels are associated with delirium in critically ill patients. Materials & methods: From 94 critically ill patients, 47 developed delirium and 47 controls were included. Blood was collected during the first 24 h of intensive care unit (ICU) admission, and on the day of delirium diagnoses. Ng and IL-1β were determined. Results: Ng and IL-1β levels were higher in the delirium group at ICU admission and on the day of delirium diagnoses. IL-1β and Ng were independently associated with delirium occurrence. Conclusion: Ng levels are associated with delirium development in ICU patients.
Collapse
Affiliation(s)
- Márcia Lz Wanderlind
- Laboratório de Fisiopatologia Experimental Universidade do Extremo Sul Catarinense, Criciúma, SC, Brazil
| | - Renata Gonçalves
- Laboratório de Fisiopatologia Experimental Universidade do Extremo Sul Catarinense, Criciúma, SC, Brazil
| | - Cristiane D Tomasi
- Laboratório de Fisiopatologia Experimental Universidade do Extremo Sul Catarinense, Criciúma, SC, Brazil
| | - Felipe Dal-Pizzol
- Laboratório de Fisiopatologia Experimental Universidade do Extremo Sul Catarinense, Criciúma, SC, Brazil.,Intensive Care Unit, Hospital São José, Criciúma, SC, Brazil
| | - Cristiane Ritter
- Laboratório de Fisiopatologia Experimental Universidade do Extremo Sul Catarinense, Criciúma, SC, Brazil.,Intensive Care Unit, Hospital São José, Criciúma, SC, Brazil
| |
Collapse
|
11
|
Xavier MJ, Engrola S, Conceição LEC, Manchado M, Carballo C, Gonçalves R, Colen R, Figueiredo V, Valente LMP. Dietary Antioxidant Supplementation Promotes Growth in Senegalese Sole Postlarvae. Front Physiol 2020; 11:580600. [PMID: 33281617 PMCID: PMC7688786 DOI: 10.3389/fphys.2020.580600] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Accepted: 10/20/2020] [Indexed: 12/15/2022] Open
Abstract
Somatic growth is a balance between protein synthesis and degradation, and it is largely influenced by nutritional clues. Antioxidants levels play a key role in protein turnover by reducing the oxidative damage in the skeletal muscle, and hence promoting growth performance in the long-term. In the present study, Senegalese sole postlarvae (45 days after hatching, DAH) were fed with three experimental diets, a control (CTRL) and two supplemented with natural antioxidants: curcumin (CC) and grape seed (GS). Trial spanned for 25 days and growth performance, muscle cellularity and the expression of muscle growth related genes were assessed at the end of the experiment (70 DAH). The diets CC and GS significantly improved growth performance of fish compared to the CTRL diet. This enhanced growth was associated with larger muscle cross sectional area, with fish fed CC being significantly different from those fed the CTRL. Sole fed the CC diet had the highest number of muscle fibers, indicating that this diet promoted muscle hyperplastic growth. Although the mean fiber diameter did not differ significantly amongst treatments, the proportion of large-sized fibers (>25 μm) was also higher in fish fed the CC diet suggesting increased hypertrophic growth. Such differences in the phenotype were associated with a significant up-regulation of the myogenic differentiation 2 (myod2) and the myomaker (mymk) transcripts involved in myocyte differentiation and fusion, respectively, during larval development. The inclusion of grape seed extract (GS diet) resulted in a significant increase in the expression of myostatin1. These results demonstrate that both diets (CC and GS) can positively modulate muscle development and promote growth in sole postlarvae. This effect is more prominent in CC fed fish, where increased hyperplastic and hypertrophic growth of the muscle was associated with an upregulation of myod2 and mymk genes.
Collapse
Affiliation(s)
- Maria J. Xavier
- Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Matosinhos, Portugal
- Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal
- Centro de Ciências do Mar, Universidade do Algarve, Faro, Portugal
- SPAROS Lda., Olhão, Portugal
| | - Sofia Engrola
- Centro de Ciências do Mar, Universidade do Algarve, Faro, Portugal
| | | | - Manuel Manchado
- IFAPA Centro El Toruño, El Puerto de Santa Maria, Cádiz, Spain
| | - Carlos Carballo
- IFAPA Centro El Toruño, El Puerto de Santa Maria, Cádiz, Spain
| | - Renata Gonçalves
- Centro de Ciências do Mar, Universidade do Algarve, Faro, Portugal
| | - Rita Colen
- Centro de Ciências do Mar, Universidade do Algarve, Faro, Portugal
| | - Vera Figueiredo
- Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Matosinhos, Portugal
- Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal
| | - Luisa M. P. Valente
- Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Matosinhos, Portugal
- Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal
| |
Collapse
|
12
|
Caetano AC, Costa D, Gonçalves R, Correia-Pinto J, Rolanda C. Does sequential balloon expulsion test improve the screening of defecation disorders? BMC Gastroenterol 2020; 20:338. [PMID: 33054847 PMCID: PMC7559767 DOI: 10.1186/s12876-020-01490-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Accepted: 10/07/2020] [Indexed: 12/30/2022] Open
Abstract
Background A defecation disorder (DD) is a difficulty in evacuation documented by physiological exams. However, this physiological evaluation can be cumbersome, inaccessible and costly. Three “low-cost” tools to evaluate DD—a clinical DD score, the balloon expulsion test (BET) and a digital rectal examination (DRE) score were evaluated as separate or combined tests for DD screening. Methods This prospective study occurred between January 2015 and March 2019 in the Gastroenterology Department of a tertiary hospital. Besides the gold standard physiological tests, constipated patients answered the clinical DD score and were evaluated by DRE and BET [standard and variable volume (VV)]. Results From 98 constipated patients, 35 (38.9%) were diagnosed with DD according to Rome IV criteria, mainly female (n = 30, 86%) with a median age of 60 years old. The clinical DD score revealed an AUC of 0.417 (SE = 0.07, p = 0.191). The DRE score displayed an AUC of 0.56 (SE = 0.063, p = 0.301). The standard BET displayed a sensitivity of 86%, specificity of 58%, positive predictive value (PPV) of 57% and negative predictive value (NPV) of 86%. The sequential VVBET followed by standard BET improved the BET performance regarding the evaluation of DD, with a sensitivity of 86%, specificity of 67%, PPV of 63% and NPV of 87%. The sequential BET had an OR 8.942, p > 0.001, CI 3.18–25.14, revealing to be the most significant predictor for DD screening. Conclusion The sequential BET is a low cost, well-performing DD screening tool, appropriate to the Primary Care Setting.
Collapse
Affiliation(s)
- A C Caetano
- Department of Gastroenterology, Hospital of Braga, Sete Fontes - São Victor, 4710-243, Braga, Portugal. .,Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal. .,ICVS/3B's-PT, Government Associate Laboratory, 4710-057, Braga, Guimarães, Portugal.
| | - D Costa
- Department of Gastroenterology, Hospital of Braga, Sete Fontes - São Victor, 4710-243, Braga, Portugal.,Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's-PT, Government Associate Laboratory, 4710-057, Braga, Guimarães, Portugal
| | - R Gonçalves
- Department of Gastroenterology, Hospital of Braga, Sete Fontes - São Victor, 4710-243, Braga, Portugal
| | - J Correia-Pinto
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's-PT, Government Associate Laboratory, 4710-057, Braga, Guimarães, Portugal
| | - C Rolanda
- Department of Gastroenterology, Hospital of Braga, Sete Fontes - São Victor, 4710-243, Braga, Portugal.,Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's-PT, Government Associate Laboratory, 4710-057, Braga, Guimarães, Portugal
| |
Collapse
|
13
|
Rey D, Fernandes TA, Sulis PM, Gonçalves R, Sepúlveda R M, Silva Frederico MJ, Aragon M, Ospina LF, Costa GM, Silva FRMB. Cellular target of isoquercetin from Passiflora ligularis Juss for glucose uptake in rat soleus muscle. Chem Biol Interact 2020; 330:109198. [PMID: 32692981 DOI: 10.1016/j.cbi.2020.109198] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 06/18/2020] [Accepted: 07/13/2020] [Indexed: 11/19/2022]
Abstract
Quercetin 3-O-beta-d-glucopyranoside (isoquercetin) is one of the most frequent metabolites of the Passiflora ligularis Juss. The purpose of this study was to investigate the effect of the aqueous extract and ethanol fraction from P. ligularis Juss leaves on glycaemia and the mechanism of action of isoquercetin on glucose uptake. In the glucose tolerance test, the aqueous extract and ethanol fraction from P. ligularis Juss (125 mg/kg to 500 mg/kg o. g.) reduced glycaemia and increased the hepatic and muscular glycogen content. Phytochemical analysis evidenced the dominant presence of isoquercetin in the extract and fraction from leaves of P. ligularis Juss. Isoquercetin mediates the stimulatory effect on glucose uptake independent of insulin receptor activation but, involve PI3K, MAPK, MEK/ERK pathways and de novo protein synthesis to GLUT-4 translocation. Overall findings revealed that isoquercetin and aqueous extract and ethanol fraction of P. ligularis Juss leaves might be a promising functional food or medicine for the treatment or prevention of diabetes.
Collapse
Affiliation(s)
- Diana Rey
- Universidad Nacional de Colombia, Departamento de Farmácia, Facultad de Ciencias, Cra. 30 45-03, 111321, Bogotá, DC, Colombia
| | - Thaís Alves Fernandes
- Universidade Federal de Santa Catarina, Departamento de Bioquímica - Centro de Ciências Biológicas, Campus Universitário, Bairro Trindade, Cx. Postal 5069, CEP: 88040-970, Florianópolis, SC, Brazil
| | - Paola Miranda Sulis
- Universidade Federal de Santa Catarina, Departamento de Bioquímica - Centro de Ciências Biológicas, Campus Universitário, Bairro Trindade, Cx. Postal 5069, CEP: 88040-970, Florianópolis, SC, Brazil
| | - Renata Gonçalves
- Universidade Federal de Santa Catarina, Departamento de Bioquímica - Centro de Ciências Biológicas, Campus Universitário, Bairro Trindade, Cx. Postal 5069, CEP: 88040-970, Florianópolis, SC, Brazil
| | - Michelle Sepúlveda R
- Universidad Nacional de Colombia, Departamento de Farmácia, Facultad de Ciencias, Cra. 30 45-03, 111321, Bogotá, DC, Colombia
| | - Marisa Jádna Silva Frederico
- Universidade Federal do Ceará, Departamento de Farmacologia e Fisiologia, Faculdade de Medicina, Núcleo de Pesquisa e Desenvolvimento de Medicamentos, Rua Coronel Nunes de Melo, 1000 - Rodolfo Teófilo, Fortaleza, CE, 60430-275, Brazil
| | - Marcela Aragon
- Universidad Nacional de Colombia, Departamento de Farmácia, Facultad de Ciencias, Cra. 30 45-03, 111321, Bogotá, DC, Colombia
| | - Luís Fernando Ospina
- Universidad Nacional de Colombia, Departamento de Farmácia, Facultad de Ciencias, Cra. 30 45-03, 111321, Bogotá, DC, Colombia
| | - Geison M Costa
- Pontificia Universidad Javeriana, Departamento de Química, Facultad de Ciencias, Carrera 7 43-82, Edificio Carlos Ortiz (52), Oficina 617, 110231, Bogotá, DC, Colombia
| | - Fátima Regina Mena Barreto Silva
- Universidade Federal de Santa Catarina, Departamento de Bioquímica - Centro de Ciências Biológicas, Campus Universitário, Bairro Trindade, Cx. Postal 5069, CEP: 88040-970, Florianópolis, SC, Brazil.
| |
Collapse
|
14
|
dos Santos T, Pereira C, Gonçalves R, Fernandes C, Salvini V, Pandolfelli V. Amino acid-driven hydrophobization of alumina and production of particle stabilised foams in a broader pH range. Ann Ital Chir 2020. [DOI: 10.1016/j.jeurceramsoc.2020.04.022] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
15
|
Barbosa JC, Correia DM, Gonçalves R, de Zea Bermudez V, Silva MM, Lanceros-Mendez S, Costa CM. Enhanced ionic conductivity in poly(vinylidene fluoride) electrospun separator membranes blended with different ionic liquids for lithium ion batteries. J Colloid Interface Sci 2020; 582:376-386. [PMID: 32861042 DOI: 10.1016/j.jcis.2020.08.046] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [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: 07/06/2020] [Revised: 08/11/2020] [Accepted: 08/12/2020] [Indexed: 12/31/2022]
Abstract
Electrospun poly(vinylidene fluoride) (PVDF) fiber membranes doped with different ionic liquids (ILs) and sharing the same anion were produced and their potential as separator membranes for battery applications was evaluated. Different types of ILs containing the same anion, bis(trifluoromethylsulfonyl)imide [TFSI]-, were used with IL concentrations ranging between 0 and 15 wt% The morphology, microstructure, thermal and electrical properties (ionic conductivity and electrochemical window) of the membranes were evaluated. The presence of ILs in the PVDF polymer matrix influences the fiber diameter and the content of the polar β phase within the polymer, as well as the degree of crystallinity. The thermal stability of the membranes decreases with the incorporation of IL. Impedance spectroscopy tests show a maximum ionic conductivity of 2.8 mS.cm-1 for 15% of 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([Emim][TFSI]) at room temperature. The electrochemical stability of the samples ranges from 0.0 to 6.0 V. When evaluated as battery separator membranes in C-LiFePO4 half-cells, a maximum discharge capacity of 119 mAh.g-1 at C-rate was obtained for the PVDF membrane with 15% [Emim][TFSI], with a coulombic efficiency close to 100%. The results demonstrate that the produced electrospun membranes are suitable for applications as separators for lithium ion batteries (LIBs).
Collapse
Affiliation(s)
- J C Barbosa
- Center of Physics, University of Minho, 4710-058 Braga, Portugal; Department of Chemistry and CQ-VR, University of Trás -os -Montes e Alto Douro, 5000-801 Vila Real, Portugal
| | - D M Correia
- Center of Physics, University of Minho, 4710-058 Braga, Portugal; Department of Chemistry and CQ-VR, University of Trás -os -Montes e Alto Douro, 5000-801 Vila Real, Portugal
| | - R Gonçalves
- Center of Chemistry, University of Minho, 4710-058 Braga, Portugal
| | - V de Zea Bermudez
- Department of Chemistry and CQ-VR, University of Trás -os -Montes e Alto Douro, 5000-801 Vila Real, Portugal
| | - M M Silva
- Center of Chemistry, University of Minho, 4710-058 Braga, Portugal
| | - S Lanceros-Mendez
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain; Ikerbasque, Basque Foundation for Science, 48013 Bilbao, Spain.
| | - C M Costa
- Center of Physics, University of Minho, 4710-058 Braga, Portugal; Center of Chemistry, University of Minho, 4710-058 Braga, Portugal.
| |
Collapse
|
16
|
Gonçalves R, Ferreira J, Araújo C, Gonçalves M, Pedroso S, Pinho C. Burnout among Portuguese oncology healthcare providers – Differences between pediatric an adult teams. Eur Psychiatry 2020. [DOI: 10.1016/j.eurpsy.2016.01.262] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
IntroductionBurnout is characterized by emotional exhaustion, depersonalization and reduced personal accomplishment, resulting from the inability to cope with chronic job stress. The literature suggests that staffs working in adult oncology are at risk of burnout. At the same time, research found that pediatric staff experiences a different set of stressors when compared with colleagues working in adult oncology. However, no studies were identified which directly compared prevalence and sources of Burn-out on pediatric and adult oncology staff.ObjectivesTo compare the differences on prevalence and sources of burnout between pediatric and adult oncology multidisciplinary teams.MethodsPediatric and adult oncology professionals, including medical and nursing from a Portuguese oncology center completed the Portuguese version of the Copenhagen Burnout Inventory. Data was analyzed using SPSS.ResultsSince the study is currently ongoing the authors will only be able to provide final results and conclusions by the time of submission of our work presentation, in March 2016. However, according to the literature available, we are expecting to found symptoms of Burnout in the superior limit of normality, with differences in the major sources of stress between adult and pediatric professionals.ConclusionThe differences in the challenges experienced by adult and pediatric teams highlight the importance of adequate prevention strategies to specific needs of each unit. Further investigation of stress across a wider range of professional disciplines is required in order to explore this gap.Disclosure of interestThe authors have not supplied their declaration of competing interest.
Collapse
|
17
|
do Nascimento MAW, Cavalari FC, Staldoni de Oliveria V, Gonçalves R, Menegaz D, da Silveira Loss E, Silva FRMB. Crosstalk in the non-classical signal transduction of testosterone and retinol in immature rat testes. Steroids 2020; 153:108522. [PMID: 31622614 DOI: 10.1016/j.steroids.2019.108522] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 08/30/2019] [Accepted: 10/04/2019] [Indexed: 01/27/2023]
Abstract
This study aimed to investigate the effects of the interaction between testosterone and retinol on the rapid responses of cultured Sertoli cells obtained from 10-day-old immature rat testes. Non-classical actions of testosterone and retinol were investigated, and the activities of L-type voltage-dependent calcium channels (L-VDCC) and voltage-dependent potassium channels (Kv) were determined by measuring 45Ca2+ influx in whole testis. Additionally, the effects of testosterone and retinol on these channels were studied in primary culture of Sertoli cells using the patch-clamp technique. 45Ca2+ influx was used to observe a dose-response curve on tissues treated with retinol and/or testosterone for 2 min (10-12, 10-9 and 10-6 M and 10-9 and 10-6 M), and a concentration of 10-6 M was selected to investigate the mechanism of action of testosterone and retinol on rapid responses. Participation of the L-VDCC and Kv channels was investigated using nifedipine and tetraethylammonium chloride (TEA) inhibitors, respectively. Both, testosterone and retinol act through non-classical mechanisms, stimulating 45Ca2+ influx in immature rat testes. The response to testosterone was abolished by nifedipine and TEA, whereas the effects of retinol were partially blocked by nifedipine and completely inhibited by TEA. Retinol amplified the testosterone-induced effect on 45Ca2+ influx in the testes, suggesting a crosstalk between rapid responses (calcium influx) and cell repolarization via activation of Kv channels. Whole-cell electrophysiology data demonstrated that testosterone and retinol increased voltage-dependent potassium currents (Kv) in Sertoli cells; inhibition of these responses by TEA confirmed the involvement of TEA-sensitive K+ channels in these effects. Taken together, we demonstrate, for the first time, crosstalk between testosterone and retinol that is mediated by a non-classical mechanism involving the L-VDCC-triggered cell depolarization and activation of repolarization by Kv currents in Sertoli cells. These ionic modulations play a physiological role in Sertoli cells and male fertility via stimulation of secretory activities.
Collapse
Affiliation(s)
- Monica Andressa Wessner do Nascimento
- Departamento de Bioquímica, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Campus Universitário, Trindade, CEP: 88040-900 Florianópolis, SC, Brazil; Núcleo de Bioeletricidade Celular (NUBIOCEL), Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Campus Universitário, Trindade, CEP: 88040-900 Florianópolis, SC, Brazil; Departamento de Ciências Fisiológicas, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Fernanda Carvalho Cavalari
- Departamento de Bioquímica, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Campus Universitário, Trindade, CEP: 88040-900 Florianópolis, SC, Brazil; Núcleo de Bioeletricidade Celular (NUBIOCEL), Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Campus Universitário, Trindade, CEP: 88040-900 Florianópolis, SC, Brazil
| | - Vanessa Staldoni de Oliveria
- Departamento de Bioquímica, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Campus Universitário, Trindade, CEP: 88040-900 Florianópolis, SC, Brazil
| | - Renata Gonçalves
- Departamento de Bioquímica, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Campus Universitário, Trindade, CEP: 88040-900 Florianópolis, SC, Brazil
| | - Danusa Menegaz
- Departamento de Bioquímica, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Campus Universitário, Trindade, CEP: 88040-900 Florianópolis, SC, Brazil; Núcleo de Bioeletricidade Celular (NUBIOCEL), Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Campus Universitário, Trindade, CEP: 88040-900 Florianópolis, SC, Brazil
| | - Eloisa da Silveira Loss
- Departamento de Ciências Fisiológicas, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil.
| | - Fátima Regina Mena Barreto Silva
- Departamento de Bioquímica, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Campus Universitário, Trindade, CEP: 88040-900 Florianópolis, SC, Brazil; Núcleo de Bioeletricidade Celular (NUBIOCEL), Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Campus Universitário, Trindade, CEP: 88040-900 Florianópolis, SC, Brazil.
| |
Collapse
|
18
|
Gonçalves R, Sanchez-Masian D, Maddox TW, Dukes-McEwan J. Preliminary investigation of serum cardiac troponin I in dogs with acute ischaemic stroke. J Small Anim Pract 2019; 61:93-100. [PMID: 31867735 DOI: 10.1111/jsap.13097] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Revised: 11/08/2019] [Accepted: 11/11/2019] [Indexed: 12/19/2022]
Abstract
OBJECTIVES To describe the incidence of elevated serum cardiac troponin I in dogs with acute ischaemic strokes, to evaluate its prognostic value in these patients and characterise a possible relationship between cardiac troponin I elevation in dogs with ischaemic strokes and underlying cardiac dysfunction. MATERIALS AND METHODS Prospective study of 18 dogs with acute ischaemic stroke diagnosed by MRI of the brain. Serum cardiac troponin I concentration, trans-thoracic echocardiography and six-lead electrocardiography were performed and findings were compared between dogs with good and poor outcome. RESULTS Serum cardiac troponin I was increased in 17 dogs (median 0.95 ng/mL; range 0.146 to 153). Focal hyperechoic regions of myocardium were visible in two dogs using trans-thoracic echocardiography and presumed to represent acute infarcts. A significant association was found between cardiac troponin I and creatinine concentrations. No difference in cardiac troponin I concentrations was detected between dogs that experienced good and poor outcomes. Clinically important cardiac dysfunction was identified in two dogs. CLINICAL SIGNIFICANCE Cardiac troponin I is commonly elevated in patients diagnosed with acute ischaemic stroke but, in this small study population, did not have prognostic value. Larger studies (recruiting a study population of 98 dogs for a power of 0.8 and a 0.05 alpha/critical value) would aid in further investigation of these preliminary results.
Collapse
Affiliation(s)
- R Gonçalves
- Department of Small Animal Clinical Science, Institute of Veterinary Science, University of Liverpool, Neston, CH64 7TE, UK
| | - D Sanchez-Masian
- Department of Small Animal Clinical Science, Institute of Veterinary Science, University of Liverpool, Neston, CH64 7TE, UK
| | - T W Maddox
- Department of Small Animal Clinical Science, Institute of Veterinary Science, University of Liverpool, Neston, CH64 7TE, UK
| | - J Dukes-McEwan
- Department of Small Animal Clinical Science, Institute of Veterinary Science, University of Liverpool, Neston, CH64 7TE, UK
| |
Collapse
|
19
|
Costa JM, Rodrigues AP, Fernandes D, Costeira F, Vieira F, Gonçalves R, Teixeira M, Soares JB. Adenocarcinoma is not always the diagnosis - colon neoplasia in patient with long-standing ulcerative colitis under long-term prednisone maintenance therapy. Clin Res Hepatol Gastroenterol 2019; 43:362-364. [PMID: 30553755 DOI: 10.1016/j.clinre.2018.11.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Revised: 11/27/2018] [Accepted: 11/30/2018] [Indexed: 02/04/2023]
Affiliation(s)
- J M Costa
- Department of Gastroenterology, Department of Radiology, Department of Pathology, Hospital de Braga, Braga, Portugal.
| | - A P Rodrigues
- Pathology Department, Hospital de Braga, Sete Fontes, São Victor, 4710-243 Braga, Portugal.
| | - D Fernandes
- Gastroenterology Department, Hospital de Braga, Sete Fontes, São Victor, 4710-243 Braga, Portugal.
| | - F Costeira
- Radiology Department, Hospital de Braga, Sete Fontes, São Victor, 4710-243 Braga, Portugal.
| | - F Vieira
- Radiology Department, Hospital de Braga, Sete Fontes, São Victor, 4710-243 Braga, Portugal.
| | - R Gonçalves
- Gastroenterology Department, Hospital de Braga, Sete Fontes, São Victor, 4710-243 Braga, Portugal.
| | - M Teixeira
- Pathology Department, Hospital de Braga, Sete Fontes, São Victor, 4710-243 Braga, Portugal.
| | - J B Soares
- Gastroenterology Department, Hospital de Braga, Sete Fontes, São Victor, 4710-243 Braga, Portugal.
| |
Collapse
|
20
|
dos Santos T, Pereira C, Gonçalves R, Salvini V, Zetterström C, Wöhrmeyer C, Parr C, Pandolfelli V. Gluconate action in the hydration of calcium aluminate cements: Theoretical study, processing of aqueous suspensions and hydration reactivation. Ann Ital Chir 2019. [DOI: 10.1016/j.jeurceramsoc.2019.03.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
21
|
Zanatta AP, Gonçalves R, Zanatta L, de Oliveria GT, Ludwig Moraes AL, Zamoner A, Fernández-Dueñas V, Lanznaster D, Ciruela F, Tasca CI, Delalande C, Menegaz D, Mena Barreto Silva FR. New ionic targets of 3,3′,5′-triiodothyronine at the plasma membrane of rat Sertoli cells. Biochimica et Biophysica Acta (BBA) - Biomembranes 2019; 1861:748-759. [DOI: 10.1016/j.bbamem.2019.01.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Revised: 12/18/2018] [Accepted: 01/07/2019] [Indexed: 11/26/2022]
|
22
|
Valado A, Sousa J, Gomes V, Pacheco P, Patrício C, Constantino F, Castro M, Gonçalves R, Cavalheiro L, Martins A, Figueiredo J, Osório N, Caseiro A, Gabriel A. Aging, exercise, enzymatic activity and health. Eur J Public Health 2019. [DOI: 10.1093/eurpub/ckz034.066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- A Valado
- ESTeSC - Coimbra Health School, Instituto Politécnico de Coimbra, Portugal
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, Portugal
| | - J Sousa
- ESTeSC - Coimbra Health School, Instituto Politécnico de Coimbra, Portugal
| | - V Gomes
- ESTeSC - Coimbra Health School, Instituto Politécnico de Coimbra, Portugal
| | - P Pacheco
- ESTeSC - Coimbra Health School, Instituto Politécnico de Coimbra, Portugal
| | - C Patrício
- ESTeSC - Coimbra Health School, Instituto Politécnico de Coimbra, Portugal
| | - F Constantino
- ESTeSC - Coimbra Health School, Instituto Politécnico de Coimbra, Portugal
| | - M Castro
- ESTeSC - Coimbra Health School, Instituto Politécnico de Coimbra, Portugal
| | - R Gonçalves
- ESTeSC - Coimbra Health School, Instituto Politécnico de Coimbra, Portugal
| | - L Cavalheiro
- ESTeSC - Coimbra Health School, Instituto Politécnico de Coimbra, Portugal
| | - A Martins
- ESTeSC - Coimbra Health School, Instituto Politécnico de Coimbra, Portugal
| | - J Figueiredo
- ESTeSC - Coimbra Health School, Instituto Politécnico de Coimbra, Portugal
| | - N Osório
- ESTeSC - Coimbra Health School, Instituto Politécnico de Coimbra, Portugal
| | - A Caseiro
- ESTeSC - Coimbra Health School, Instituto Politécnico de Coimbra, Portugal
| | - A Gabriel
- ESTeSC - Coimbra Health School, Instituto Politécnico de Coimbra, Portugal
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, Portugal
| |
Collapse
|
23
|
Rey D, Miranda Sulis P, Alves Fernandes T, Gonçalves R, Silva Frederico MJ, Costa GM, Aragon M, Ospina LF, Mena Barreto Silva FR. Astragalin augments basal calcium influx and insulin secretion in rat pancreatic islets. Cell Calcium 2019; 80:56-62. [PMID: 30965223 DOI: 10.1016/j.ceca.2019.03.009] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [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: 02/07/2019] [Revised: 03/18/2019] [Accepted: 03/27/2019] [Indexed: 12/13/2022]
Abstract
Astragalin is a flavonol glycoside with several biological activities, including antidiabetic properties. The objective of this study was to investigate the effects of astragalin on glycaemia and insulin secretion, in vivo, and on calcium influx and insulin secretion in isolated rat pancreatic islets, ex vivo. Astragalin (1 and 10 mg / kg) was administered by oral gavage to fasted Wistar rats and serum glucose and plasma insulin were measured. Isolated pancreatic islets were used to measure basal insulin secretion and calcium influx. Astragalin (10 mg/ kg) decreased glycaemia and increased insulin secretion significantly at 15-180 min, respectively, in the glucose tolerance test. In isolated pancreatic cells, astragalin (100 μM) stimulated calcium influx through a mechanism involving ATP-dependent potassium channels, L-type voltage-dependent calcium channels, the sarcoendoplasmic reticulum calcium transport ATPase (SERCA), PKC and PKA. These findings highlight the dietary coadjuvant, astragalin, as a potential insulin secretagogue that may contribute to glucose homeostasis.
Collapse
Affiliation(s)
- Diana Rey
- Universidad Nacional de Colombia, Departamento de Farmácia, Facultad de Ciencias, Cra. 30 No. 45-03, Postal Code 111321, Bogotá, D. C., Colombia; Universidade Federal de Santa Catarina, Departamento de Bioquímica - Centro de Ciências Biológicas, Campus Universitário, BairroTrindade, Cx. Postal 5069, CEP: 88040-970, Florianópolis, SC, Brazil
| | - Paola Miranda Sulis
- Universidade Federal de Santa Catarina, Departamento de Bioquímica - Centro de Ciências Biológicas, Campus Universitário, BairroTrindade, Cx. Postal 5069, CEP: 88040-970, Florianópolis, SC, Brazil
| | - Thaís Alves Fernandes
- Universidade Federal de Santa Catarina, Departamento de Bioquímica - Centro de Ciências Biológicas, Campus Universitário, BairroTrindade, Cx. Postal 5069, CEP: 88040-970, Florianópolis, SC, Brazil
| | - Renata Gonçalves
- Universidade Federal de Santa Catarina, Departamento de Bioquímica - Centro de Ciências Biológicas, Campus Universitário, BairroTrindade, Cx. Postal 5069, CEP: 88040-970, Florianópolis, SC, Brazil
| | - Marisa Jádna Silva Frederico
- Universidade Federal de Santa Catarina, Departamento de Bioquímica - Centro de Ciências Biológicas, Campus Universitário, BairroTrindade, Cx. Postal 5069, CEP: 88040-970, Florianópolis, SC, Brazil
| | - Geison M Costa
- Pontificia Universidad Javeriana, Departamento de Química, Facultad de Ciencias, Carrera 7 No. 43-82, Edificio Carlos Ortiz (52), Oficina 617, Postal Code 110231, Bogotá, D. C., Colombia
| | - Marcela Aragon
- Universidad Nacional de Colombia, Departamento de Farmácia, Facultad de Ciencias, Cra. 30 No. 45-03, Postal Code 111321, Bogotá, D. C., Colombia
| | - Luís Fernando Ospina
- Universidad Nacional de Colombia, Departamento de Farmácia, Facultad de Ciencias, Cra. 30 No. 45-03, Postal Code 111321, Bogotá, D. C., Colombia
| | - Fátima Regina Mena Barreto Silva
- Universidade Federal de Santa Catarina, Departamento de Bioquímica - Centro de Ciências Biológicas, Campus Universitário, BairroTrindade, Cx. Postal 5069, CEP: 88040-970, Florianópolis, SC, Brazil.
| |
Collapse
|
24
|
Affiliation(s)
- J M Costa
- Gastroenterology Department, Hospital de Braga, Sete Fontes - São Victor, 4710-243, Braga, Portugal.
| | - T Leal
- Gastroenterology Department, Hospital de Braga, Sete Fontes - São Victor, 4710-243, Braga, Portugal
| | - S D Carvalho
- Pathology Department, Hospital de Braga, Sete Fontes - São Victor, 4710-243, Braga, Portugal
| | - R Gonçalves
- Gastroenterology Department, Hospital de Braga, Sete Fontes - São Victor, 4710-243, Braga, Portugal
| | - B Arroja
- Gastroenterology Department, Hospital de Braga, Sete Fontes - São Victor, 4710-243, Braga, Portugal
| |
Collapse
|
25
|
Gonçalves R, Zanatta AP, Cavalari FC, do Nascimento MAW, Delalande-Lecapitaine C, Bouraïma-Lelong H, Silva FRMB. Acute effect of bisphenol A: Signaling pathways on calcium influx in immature rat testes. Reprod Toxicol 2018; 77:94-102. [PMID: 29476780 DOI: 10.1016/j.reprotox.2018.02.009] [Citation(s) in RCA: 18] [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: 09/18/2017] [Revised: 02/15/2018] [Accepted: 02/20/2018] [Indexed: 02/07/2023]
Abstract
We investigated the acute effect of low concentrations of BPA on calcium influx and the mechanism of action of BPA in this rapid response in the rat testis. BPA increased calcium influx at 1 pM and 1 nM at 300 s of incubation, in a similar manner to that of estradiol. At 1 pM, BPA stimulated calcium influx independently of classical estrogen receptors, consistent with a G-protein coupled receptor. This effect also involves the modulation of ionic channels, such as K+, TRPV1 and Cl- channels. Furthermore, BPA is able to modulate calcium from intracellular storages by inhibiting SERCA and activating IP3 receptor/Ca2+ channels at the endoplasmic reticulum and activate kinase proteins, such as PKA and PKC. The rapid responses of BPA on calcium influx could, in turn, trigger a cross talk by MEK and p38MAPK activation and also mediate genomic responses.
Collapse
Affiliation(s)
- Renata Gonçalves
- Laboratório de Hormônios & Transdução de Sinais, Departamento de Bioquímica, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil; UNOCHAPECÓ, Brazil; Normandie Univ, France; UNICAEN, Laboratoire Estrogènes, Reproduction, Cancer, CAEN cedex 5, France
| | | | - Fernanda Carvalho Cavalari
- Laboratório de Hormônios & Transdução de Sinais, Departamento de Bioquímica, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Monica Andressa Wessner do Nascimento
- Laboratório de Hormônios & Transdução de Sinais, Departamento de Bioquímica, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Christelle Delalande-Lecapitaine
- Normandie Univ, France; UNICAEN, Laboratoire Estrogènes, Reproduction, Cancer, CAEN cedex 5, France; INRA USC 2006, CAEN cedex 5, France
| | - Hélène Bouraïma-Lelong
- Normandie Univ, France; UNICAEN, Laboratoire Estrogènes, Reproduction, Cancer, CAEN cedex 5, France; INRA USC 2006, CAEN cedex 5, France
| | - Fátima Regina Mena Barreto Silva
- Laboratório de Hormônios & Transdução de Sinais, Departamento de Bioquímica, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil.
| |
Collapse
|
26
|
Boufelli G, Mota BS, Franca FC, Doria MT, Maesaka JY, Ricci MD, Piato JRM, Rocha FBC, Giribela AHG, Gonçalves R, Masili-Oku S, Mano MS, Chala LF, Thompson BM, Baracat EC, Filassi JR. Abstract P2-12-11: Does conservative surgery treatment for locally advanced breast cancer safe after neoadjuvant treatment? Cancer Res 2018. [DOI: 10.1158/1538-7445.sabcs17-p2-12-11] [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: 11/16/2022]
Abstract
Abstract
BACKGROUND:
The aim of this study was to assess the oncological efficacy of breast conserving surgery (BCS) after neoadjuvant chemotherapy in patients with local advanced breast cancer.
PATIENTS AND METHODS:
A retrospective cohort study was conducted with locally advanced breast cancer invasive (Stage IIb to III) treated at ICESP, an oncologic referral center between 2008 and 2016. Endpoints were disease free survival (DFS), local disease free survival (LDFS) and overall survival (OS). Multivariable analyses were performed using Cox proportional hazards models.
RESULTS:
530 patients were included, 26% (138) were stage IIB, 41.9% (222) IIIA, 29.6% (157) IIIB and 2.5% (13) IIIA. 88.8% (470) were invasive ductal carcinoma. The mean age was 51.5(23-95). 95.5% and 4.5% were submitted Neoadjuvant Chemotherapy and Hormone therapy, respectively. The BCS were performed in 24.5% (130) patients versus 75.5% (400) of mastectomies. The mean follow up was 36.4(0.16-80.2) months. There were no differences in local disease free-survival 59 (95%CI 58-61) versus 60 (95%CI 57-60); p=0.4 and overall survival 56.2 (95%CI 52-60) versus 59.3(95%CI 53-65); p= 0.24 for mastectomy and BCS. The disease free survival was lower at mastectomy group 51.4 (95%CI 49-53) versus 56,8 (95%CI 53-59); p=0.01. Logistic regression models were significant only for cancer stage both patterns, although the results were better for masses, particularly when kinetic assessments were included (LR 12.8; p = 0.005)
CONCLUSION:
In our population, the BCS does not affect the overall and local disease-free survival rates, which seems to be safe to perform in patients who desire to conserve the breast after neoadjuvant treatment.
Citation Format: Boufelli G, Mota BS, Franca FC, Doria MT, Maesaka JY, Ricci MD, Piato JRM, Rocha FBC, Giribela AHG, Gonçalves R, Masili-Oku S, Mano MS, Chala LF, Thompson BM, Baracat EC, Filassi JR. Does conservative surgery treatment for locally advanced breast cancer safe after neoadjuvant treatment? [abstract]. In: Proceedings of the 2017 San Antonio Breast Cancer Symposium; 2017 Dec 5-9; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2018;78(4 Suppl):Abstract nr P2-12-11.
Collapse
Affiliation(s)
- G Boufelli
- Instituto do Câncer do Estado de São Paulo, Hospital das Clínicas, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - BS Mota
- Instituto do Câncer do Estado de São Paulo, Hospital das Clínicas, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - FC Franca
- Instituto do Câncer do Estado de São Paulo, Hospital das Clínicas, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - MT Doria
- Instituto do Câncer do Estado de São Paulo, Hospital das Clínicas, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - JY Maesaka
- Instituto do Câncer do Estado de São Paulo, Hospital das Clínicas, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - MD Ricci
- Instituto do Câncer do Estado de São Paulo, Hospital das Clínicas, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - JRM Piato
- Instituto do Câncer do Estado de São Paulo, Hospital das Clínicas, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - FBC Rocha
- Instituto do Câncer do Estado de São Paulo, Hospital das Clínicas, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - AHG Giribela
- Instituto do Câncer do Estado de São Paulo, Hospital das Clínicas, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - R Gonçalves
- Instituto do Câncer do Estado de São Paulo, Hospital das Clínicas, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - S Masili-Oku
- Instituto do Câncer do Estado de São Paulo, Hospital das Clínicas, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - MS Mano
- Instituto do Câncer do Estado de São Paulo, Hospital das Clínicas, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - LF Chala
- Instituto do Câncer do Estado de São Paulo, Hospital das Clínicas, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - BM Thompson
- Instituto do Câncer do Estado de São Paulo, Hospital das Clínicas, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - EC Baracat
- Instituto do Câncer do Estado de São Paulo, Hospital das Clínicas, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - JR Filassi
- Instituto do Câncer do Estado de São Paulo, Hospital das Clínicas, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| |
Collapse
|
27
|
Oliveira L, Cartaxo T, Ferreira J, Marques M, Neiva S, Cardoso D, Ferreira C, Gonçalves R, Laureano M, Araújo C, Pereira A, Macedo A. The Relation Between Parent Personality Traits and Children Psychopathology: A Pilot Study. Eur Psychiatry 2017. [DOI: 10.1016/j.eurpsy.2017.02.061] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Abstract
IntroductionPersonality plays a crucial role in a person's behavior, emotions and cognitive patterns and shows an important relationship with several variables such as marital status, mental disorders or parenting models. However, little is known about the relation between the parental Big Five personality traits (Neuroticism, Extraversion, Openness, Conscientiousness and Agreeableness) and children psychopathology regardless of the diagnostic of their offspring.ObjectivesTo analyze the correlation between parents’ Big Five personality traits and their children categorical diagnosis and psychopathology score.MethodsThe authors recruited 105 children in the outpatient unit of the child and adolescent psychiatry department of the pediatric hospital of Coimbra and their 117 parents. Parents were assessed using the Portuguese version of Neo Five-Factor Inventory and children psychopathology scores were rated by child and adolescent psychiatrists using the Brief Psychiatric Rating Scale for Children.ResultsForty-nine children (46.7%) were male and 56 (53.3%) were female, with a mean age of 12.5 ± 3.2 and 13.6 ± 2.9, respectively. Twenty parents (17.1%) were male and 97 (82.9%) were female, with a mean age of 45.8 ± 4.1 and 41.2 ± 5.4, respectively. After excluding children diagnosed with Schizophrenia, bipolar disorder, autism spectrum disorders and intellectual developmental disorder, Pearson's correlation coefficients were significant between: parents’ neuroticism and children Uncooperativeness (0.211), Manipulativeness (0.238), Hallucinations (0.257), Sleep difficulties (0.296) and Disorientation (0.204); parents’ agreeableness and children hostility (−0.228); and parent's conscientiousness and children disorientation (−0.231), all P < 0.05.ConclusionsThese preliminary results suggest that parental personality traits may influence psychopathological outcomes in their children. Data are still being collected to clarify the nature of this relationship.Disclosure of interestThe authors have not supplied their declaration of competing interest.
Collapse
|
28
|
Lazzerini K, Gutierrez-Quintana R, José-López R, McConnell F, Gonçalves R, McMurrough J, De Decker S, Muir C, Priestnall SL, Mari L, Stabile F, De Risio L, Loeffler C, Tauro A, Rusbridge C, Rodenas S, Añor S, de la Fuente C, Fischer A, Bruehschwein A, Penderis J, Guevar J. Clinical Features, Imaging Characteristics, and Long-term Outcome of Dogs with Cranial Meningocele or Meningoencephalocele. J Vet Intern Med 2017; 31:505-512. [PMID: 28247440 PMCID: PMC5354015 DOI: 10.1111/jvim.14638] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [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: 09/14/2016] [Revised: 10/27/2016] [Accepted: 11/21/2016] [Indexed: 11/28/2022] Open
Abstract
Background The term meningoencephalocele (MEC) describes a herniation of cerebral tissue and meninges through a defect in the cranium, whereas a meningocele (MC) is a herniation of the meninges alone. Hypothesis/Objectives To describe the clinical features, magnetic resonance imaging (MRI) characteristics, and outcomes of dogs with cranial MC and MEC. Animals Twenty‐two client‐owned dogs diagnosed with cranial MC or MEC. Methods Multicentric retrospective descriptive study. Clinical records of 13 institutions were reviewed. Signalment, clinical history, neurologic findings and MRI characteristics as well as treatment and outcome were recorded and evaluated. Results Most affected dogs were presented at a young age (median, 6.5 months; range, 1 month – 8 years). The most common presenting complaints were seizures and behavioral abnormalities. Intranasal MEC was more common than parietal MC. Magnetic resonance imaging identified meningeal enhancement of the protruded tissue in 77% of the cases. Porencephaly was seen in all cases with parietal MC. Cerebrospinal fluid (CSF) analysis identified mild abnormalities in 4 of 11 cases. Surgery was not performed in any affected dog. Seventeen patients were treated medically, and seizures were adequately controlled with anti‐epileptic drugs in 10 dogs. Dogs with intranasal MEC and mild neurologic signs had a fair prognosis with medical treatment. Conclusion and clinical importance Although uncommon, MC and MEC should be considered as a differential diagnosis in young dogs presenting with seizures or alterations in behavior. Medical treatment is a valid option with a fair prognosis when the neurologic signs are mild.
Collapse
Affiliation(s)
- K Lazzerini
- Small Animal Hospital, University of Glasgow, Glasgow, UK
| | | | - R José-López
- Small Animal Hospital, University of Glasgow, Glasgow, UK
| | - F McConnell
- Small Animal Teaching Hospital, University of Liverpool, Liverpool, UK
| | - R Gonçalves
- Small Animal Teaching Hospital, University of Liverpool, Liverpool, UK
| | | | - S De Decker
- Queen Mother Hospital for Animals, Royal Veterinary College, London, UK
| | - C Muir
- Pathology and Pathogen Biology, Royal Veterinary College, Hawkshead Lane, Hatfield, Hertfordshire, AL9 7TA, UK
| | - S L Priestnall
- Pathology and Pathogen Biology, Royal Veterinary College, Hawkshead Lane, Hatfield, Hertfordshire, AL9 7TA, UK
| | - L Mari
- Animal Health Trust, Newmarket, UK
| | | | | | - C Loeffler
- Faculty of Veterinary Medicine, University of Leipzig, Leipzig, Germany
| | - A Tauro
- Fitzpatrick Referrals, Eashing, Surrey, UK
| | | | - S Rodenas
- Hospital Veterinario Valencia Sur, Valencia, Spain
| | - S Añor
- Fundació Hospital Clínic Veterinari, Facultat de Veterinària, Universitat Autònoma de Barcelona, Bellaterra, Barcelona, Spain
| | - C de la Fuente
- Fundació Hospital Clínic Veterinari, Facultat de Veterinària, Universitat Autònoma de Barcelona, Bellaterra, Barcelona, Spain
| | - A Fischer
- Ludwig-Maximilian University Munich, Munchen, Germany
| | | | - J Penderis
- Vet Extra Neurology, Broadleys Veterinary Hospital, Stirling, UK
| | - J Guevar
- Small Animal Hospital, University of Glasgow, Glasgow, UK
| |
Collapse
|
29
|
Gonçalves R, Zamoner A, Zanatta L, Zanatta AP, Remor AP, da Luz Scheffer D, Latini A, Silva FRMB. 1,25(OH)2 vitamin D3 signalling on immature rat Sertoli cells: gamma-glutamyl transpeptidase and glucose metabolism. J Cell Commun Signal 2017; 11:233-243. [PMID: 28160135 DOI: 10.1007/s12079-016-0367-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Accepted: 11/22/2016] [Indexed: 01/06/2023] Open
Abstract
1α,25-Dihydroxyvitamin D3 (1,25-D3) is critical for the maintenance of normal male reproduction since reduced fertility is observed in vitamin D-deficient rats. Gamma-glutamyl transpeptidase (GGT) is a membrane-bound enzyme that is localized on Sertoli cells and catalyses the transfer of the gamma-glutamyl residues to an amino acid or peptide acceptor. Sertoli cells are also responsible for providing nutrients, as lactate, to the development of germ cells. The aim of this study was to investigate the effect and the mechanism of action of 1,25-D3 on GGT on Sertoli cell functions from 30-day-old immature rat testis. Results demonstrated that 1,25-D3 stimulates GGT activity at Sertoli cells plasma membrane through a PKA-dependent mechanism of action, which was not dependent of active de novo protein synthesis. The hormone increases glucose uptake, as well as lactate production and release by Sertoli cells without altering the reactive oxygen species (ROS) generation. In addition, 1,25-D3 did not change reduced glutathione (GSH) amount or oxygen consumption, and diminished Sertoli cell death. These findings demonstrate that 1,25-D3 stimulatory effect on GGT activity, glucose uptake, LDH activity and lactate production seem to be an important contribution of Sertoli cells for germ cells nutrition and for a full and active ongoing spermatogenesis.
Collapse
Affiliation(s)
- Renata Gonçalves
- Departamento de Bioquímica, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Campus Universitário, Bairro Trindade, Cx Postal 5069, Florianópolis, Santa Catarina, CEP: 88040-970, Brazil
| | - Ariane Zamoner
- Departamento de Bioquímica, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Campus Universitário, Bairro Trindade, Cx Postal 5069, Florianópolis, Santa Catarina, CEP: 88040-970, Brazil
| | - Leila Zanatta
- Departamento de Enfermagem, Centro de Educação Superior do Oeste, Universidade do Estado de Santa Catarina, Chapecó, Santa Catarina, Brazil
| | - Ana Paula Zanatta
- Departamento de Bioquímica, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Campus Universitário, Bairro Trindade, Cx Postal 5069, Florianópolis, Santa Catarina, CEP: 88040-970, Brazil
| | - Aline Pertile Remor
- Departamento de Bioquímica, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Campus Universitário, Bairro Trindade, Cx Postal 5069, Florianópolis, Santa Catarina, CEP: 88040-970, Brazil
| | - Débora da Luz Scheffer
- Departamento de Bioquímica, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Campus Universitário, Bairro Trindade, Cx Postal 5069, Florianópolis, Santa Catarina, CEP: 88040-970, Brazil
| | - Alexandra Latini
- Departamento de Bioquímica, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Campus Universitário, Bairro Trindade, Cx Postal 5069, Florianópolis, Santa Catarina, CEP: 88040-970, Brazil
| | - Fátima Regina Mena Barreto Silva
- Departamento de Bioquímica, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Campus Universitário, Bairro Trindade, Cx Postal 5069, Florianópolis, Santa Catarina, CEP: 88040-970, Brazil.
| |
Collapse
|
30
|
Gonçalves R, Christinelli W, Trench A, Cuesta A, Pereira E. Properties improvement of poly(o-methoxyaniline) based supercapacitors: experimental and theoretical behaviour study of self-doping effect. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2016.12.188] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
31
|
Afonso J, Lopes S, Gonçalves R, Caldeira P, Lago P, Tavares de Sousa H, Ramos J, Gonçalves AR, Ministro P, Rosa I, Vieira AI, Dias CC, Magro F. Proactive therapeutic drug monitoring of infliximab: a comparative study of a new point-of-care quantitative test with two established ELISA assays. Aliment Pharmacol Ther 2016; 44:684-92. [PMID: 27507790 DOI: 10.1111/apt.13757] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [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] [Received: 05/21/2016] [Revised: 06/09/2016] [Accepted: 07/18/2016] [Indexed: 12/17/2022]
Abstract
BACKGROUND Therapeutic drug monitoring is a powerful strategy known to improve the clinical outcomes and to optimise the healthcare resources in the treatment of autoimmune diseases. Currently, most of the methods commercially available for the quantification of infliximab (IFX) are ELISA-based, with a turnaround time of approximately 8 h, and delaying the target dosage adjustment to the following infusion. AIM To validate the first point-of-care IFX quantification device available in the market - the Quantum Blue Infliximab assay (Buhlmann, Schonenbuch, Switzerland) - by comparing it with two well-established methods. METHODS The three methods were used to assay the IFX concentration of spiked samples and of the serum of 299 inflammatory bowel diseases (IBD) patients undergoing IFX therapy. RESULTS The point-of-care assay had an average IFX recovery of 92%, being the most precise among the tested methods. The Intraclass Correlation Coefficients of the point-of-care IFX assay vs. the two ELISA-based established methods were 0.889 and 0.939. Moreover, the accuracy of the point-of-care IFX compared with each of the two reference methods was 77% and 83%, and the kappa statistics revealed a substantial agreement (0.648 and 0.738). CONCLUSIONS The Quantum Blue IFX assay can successfully replace the commonly used ELISA-based IFX quantification kits. This point-of-care IFX assay is able to deliver the results within 15 min makes it ideal for an immediate target concentration adjusted dosing. Moreover, it is a user-friendly desktop device that does not require specific laboratory facilities or highly specialised personnel.
Collapse
Affiliation(s)
- J Afonso
- Department of Pharmacology and Therapeutics, University of Porto, Porto, Portugal.,MedInUP, Centre for Drug Discovery and Innovative Medicines, Porto, Portugal
| | - S Lopes
- Centro Hospitalar São João, Porto, Portugal
| | | | - P Caldeira
- Centro Hospitalar do Algarve, Faro, Portugal
| | - P Lago
- Centro Hospitalar do Porto, Porto, Portugal
| | - H Tavares de Sousa
- Centro Hospitalar do Algarve, Portimão, Portugal.,University of Algarve, Faro, Portugal
| | - J Ramos
- Centro Hospitalar de Lisboa, Lisboa, Portugal
| | | | - P Ministro
- Hospital de S. Teotónio, Viseu, Portugal
| | - I Rosa
- Instituto Português de Oncologia de Lisboa, Lisboa, Portugal
| | - A I Vieira
- Hospital Garcia de Orta, Almada, Portugal
| | - C C Dias
- Health Information and Decision Sciences Department, Faculty of Medicine, University of Porto, Porto, Portugal.,Center for Health Technology and Services Research, Porto, Portugal
| | - F Magro
- Department of Pharmacology and Therapeutics, University of Porto, Porto, Portugal.,MedInUP, Centre for Drug Discovery and Innovative Medicines, Porto, Portugal.,Centro Hospitalar São João, Porto, Portugal
| | | |
Collapse
|
32
|
Gonçalves R, Valente C, Ferreira E, Serra JE, da Cunha JS. Cytomegalic hepatitis in a patient receiving omalizumab. IDCases 2016; 5:83-4. [PMID: 27583207 PMCID: PMC4995387 DOI: 10.1016/j.idcr.2016.08.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2016] [Revised: 07/28/2016] [Accepted: 08/07/2016] [Indexed: 02/03/2023] Open
Abstract
Cytomegalovirus is a double stranded DNA virus that can be present in nearly all organs and body fluids. The primary infection is usually asymptomatic in the immunocompetent host and it is common among adolescents and young adults. The symptomatic form appears, in the majority of cases, as a mononucleosis syndrome with full recovery without specific treatment. We report a case of a 25 years old woman who presented with hepatitis due to CMV infection and history of omalizumab administration one month earlier. This recombinant monoclonal antibody is used to control refractory asthma and chronic spontaneous urticarial as it inhibits human IgE. Despite that, the long course of the disease lead us to initiate treatment with valganciclovir. The improvement after that was rapid and complete.
Collapse
Affiliation(s)
- R Gonçalves
- Infectious Diseases Unit - Centro Hospitalar e Universitário de Coimbra (Coimbrás Hospital Centre and University), Coimbra, Portugal
| | - C Valente
- Infectious Diseases Unit - Centro Hospitalar e Universitário de Coimbra (Coimbrás Hospital Centre and University), Coimbra, Portugal
| | - E Ferreira
- Infectious Diseases Unit - Centro Hospitalar e Universitário de Coimbra (Coimbrás Hospital Centre and University), Coimbra, Portugal
| | - J E Serra
- Infectious Diseases Unit - Centro Hospitalar e Universitário de Coimbra (Coimbrás Hospital Centre and University), Coimbra, Portugal
| | - J Saraiva da Cunha
- Infectious Diseases Unit - Centro Hospitalar e Universitário de Coimbra (Coimbrás Hospital Centre and University), Coimbra, Portugal
| |
Collapse
|
33
|
Sebastian MS, Larrea A, Gonçalves R, Alejo T, Vilas JL, Sebastian V, Martins P, Lanceros-Mendez S. Understanding nucleation of the electroactive β-phase of poly(vinylidene fluoride) by nanostructures. RSC Adv 2016. [DOI: 10.1039/c6ra24356h] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
34
|
Cooper C, Gutierrez-Quintana R, Penderis J, Gonçalves R. Osseous associated cervical spondylomyelopathy at the C2-C3 articular facet joint in 11 dogs. Vet Rec 2015; 177:522. [DOI: 10.1136/vr.103104] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/09/2015] [Indexed: 11/04/2022]
Affiliation(s)
- C. Cooper
- School of Veterinary Science, University of Liverpool; Wirral UK
| | | | - J. Penderis
- School of Veterinary Medicine, University of Glasgow; UK
| | - R. Gonçalves
- School of Veterinary Science, University of Liverpool; Wirral UK
| |
Collapse
|
35
|
Martins F, Gonçalves R, Oliveira J, Cruz-Monteagudo M, Nieto-Villar JM, Paz-y-Miño C, Rebelo I, Tejera E. Unravelling the relationship between protein sequence and low-complexity regions entropies: Interactome implications. J Theor Biol 2015; 382:320-7. [PMID: 26164061 DOI: 10.1016/j.jtbi.2015.06.049] [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: 03/31/2015] [Revised: 06/12/2015] [Accepted: 06/28/2015] [Indexed: 10/23/2022]
Abstract
Low-complexity regions are sub-sequences of biased composition in a protein sequence. The influence of these regions over protein evolution, specific functions and highly interactive capacities is well known. Although protein sequence entropy has been largely studied, its relationship with low-complexity regions and the subsequent effects on protein function remains unclear. In this work we propose a theoretical and empirical model integrating the sequence entropy with local complexity parameters. Our results indicate that the protein sequence entropy is related with the protein length, the entropies inside and outside the low-complexity regions as well as their number and average size. We found a small but significant increment in the sequence entropy of hubs proteins. In agreement with our theoretical model, this increment is highly dependent of the balance between the increment of protein length and average size of the low-complexity regions. Finally, our models and proteins analysis provide evidence supporting that modifications in the average size is more relevant in hubs proteins than changes in the number of low-complexity regions.
Collapse
Affiliation(s)
- F Martins
- Department of Biochemistry, Faculty of Pharmacy, University of Porto, Portugal
| | - R Gonçalves
- Department of Biochemistry, Faculty of Pharmacy, University of Porto, Portugal
| | - J Oliveira
- Department of Biochemistry, Faculty of Pharmacy, University of Porto, Portugal
| | - M Cruz-Monteagudo
- Instituto de Investigaciones Biomédicas, Universidad de las Américas, Quito, Ecuador
| | - J M Nieto-Villar
- Dpto. de Química-Física, Fac. de Química, Universidad de La Habana, Cuba. Cátedra de Sistemas Complejos "H. Poincaré", Universidad de La Habana, Cuba
| | - C Paz-y-Miño
- Instituto de Investigaciones Biomédicas, Universidad de las Américas, Quito, Ecuador
| | - I Rebelo
- Department of Biochemistry, Faculty of Pharmacy, University of Porto, Portugal; UCIBIO@REQUIMTE, Portugal.
| | - E Tejera
- Instituto de Investigaciones Biomédicas, Universidad de las Américas, Quito, Ecuador
| |
Collapse
|
36
|
Silva AM, Varela-Moreira A, Pereira Gomes C, Molinos M, Leite M, Almeida M, Ribeiro D, Schrader M, Figueiredo C, Barbosa M, Gonçalves R, Almeida C, Pêgo A, Santos SG, Gomez-Lazaro M. Integrated Analysis of Biological Samples by Imaging Flow Cytometry. Microsc Microanal 2015; 21 Suppl 5:95-96. [PMID: 26227728 DOI: 10.1017/s1431927615014282] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Affiliation(s)
- A M Silva
- 1Instituto de Engenharia Biomédica (INEB),University of Porto,Porto,Portugal
| | - A Varela-Moreira
- 1Instituto de Engenharia Biomédica (INEB),University of Porto,Porto,Portugal
| | - C Pereira Gomes
- 1Instituto de Engenharia Biomédica (INEB),University of Porto,Porto,Portugal
| | - M Molinos
- 1Instituto de Engenharia Biomédica (INEB),University of Porto,Porto,Portugal
| | - M Leite
- 3Instituto de Patologia e Imunologia Molecular da Universidade do Porto (IPATIMUP),Porto,Portugal
| | - M Almeida
- 7Centre for Cell Biology and Department of Biology,University of Aveiro,Aveiro,Portugal
| | - D Ribeiro
- 7Centre for Cell Biology and Department of Biology,University of Aveiro,Aveiro,Portugal
| | - M Schrader
- 8College of Life and Environmental Sciences,Biosciences,University of Exeter,Exeter,Devon,United Kindgom
| | - C Figueiredo
- 3Instituto de Patologia e Imunologia Molecular da Universidade do Porto (IPATIMUP),Porto,Portugal
| | - M Barbosa
- 1Instituto de Engenharia Biomédica (INEB),University of Porto,Porto,Portugal
| | - R Gonçalves
- 1Instituto de Engenharia Biomédica (INEB),University of Porto,Porto,Portugal
| | - C Almeida
- 1Instituto de Engenharia Biomédica (INEB),University of Porto,Porto,Portugal
| | - A Pêgo
- 1Instituto de Engenharia Biomédica (INEB),University of Porto,Porto,Portugal
| | - S G Santos
- 1Instituto de Engenharia Biomédica (INEB),University of Porto,Porto,Portugal
| | - M Gomez-Lazaro
- 1Instituto de Engenharia Biomédica (INEB),University of Porto,Porto,Portugal
| |
Collapse
|
37
|
Gutiérrez J, Martins P, Gonçalves R, Sencadas V, Lasheras A, Lanceros-Mendez S, Barandiarán J. Synthesis, physical and magnetic properties of BaFe12O19/P(VDF-TrFE) multifunctional composites. Eur Polym J 2015. [DOI: 10.1016/j.eurpolymj.2015.06.012] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
38
|
Bersan E, McConnell F, Trevail R, Behr S, De Decker S, Volk HA, Smith PM, Gonçalves R. Cervical intervertebral foraminal disc extrusion in dogs: clinical presentation, MRI characteristics and outcome after medical management. Vet Rec 2015; 176:597. [DOI: 10.1136/vr.102851] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/10/2015] [Indexed: 11/03/2022]
Affiliation(s)
- E. Bersan
- School of Veterinary Science, University of Liverpool; Neston UK
| | - F. McConnell
- School of Veterinary Science, University of Liverpool; Neston UK
| | - R. Trevail
- Willows Veterinary Centre; West Midlands UK
| | - S. Behr
- Willows Veterinary Centre; West Midlands UK
| | - S. De Decker
- Department of Clinical Science and Services; Royal Veterinary College, University of London; Hatfield Hertfordshire UK
| | - H. A. Volk
- Department of Clinical Science and Services; Royal Veterinary College, University of London; Hatfield Hertfordshire UK
| | - P. M. Smith
- School of Veterinary Science, University of Liverpool; Neston UK
| | - R. Gonçalves
- School of Veterinary Science, University of Liverpool; Neston UK
| |
Collapse
|
39
|
Martins P, Larrea A, Gonçalves R, Botelho G, Ramana EV, Mendiratta SK, Sebastian V, Lanceros-Mendez S. Novel Anisotropic Magnetoelectric Effect on δ-FeO(OH)/P(VDF-TrFE) Multiferroic Composites. ACS Appl Mater Interfaces 2015; 7:11224-11229. [PMID: 25950199 DOI: 10.1021/acsami.5b01196] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The past decade has witnessed increased research effort on multiphase magnetoelectric (ME) composites. In this scope, this paper presents the application of novel materials for the development of anisotropic magnetoelectric sensors based on δ-FeO(OH)/P(VDF-TrFE) composites. The composite is able to precisely determine the amplitude and direction of the magnetic field. A new ME effect is reported in this study, as it emerges from the magnetic rotation of the δ-FeO(OH) nanosheets inside the piezoelectric P(VDF-TrFE) polymer matrix. δ-FeO(OH)/P(VDF-TrFE) composites with 1, 5, 10, and 20 δ-FeO(OH) filler weight percentage in three δ-FeO(OH) alignment states (random, transversal, and longitudinal) have been developed. Results have shown that the modulus of the piezoelectric response (10-24 pC·N(-1)) is stable at least up to three months, the shape and magnetization maximum value (3 emu·g(-1)) is dependent on δ-FeO(OH) content, and the obtained ME voltage coefficient, with a maximum of ∼0.4 mV·cm(-1)·Oe(-1), is dependent on the incident magnetic field direction and intensity. In this way, the produced materials are suitable for innovative anisotropic sensor and actuator applications.
Collapse
Affiliation(s)
- P Martins
- †Centro/Departamento de Física, Universidade do Minho, 4710-057 Braga, Portugal
| | - A Larrea
- ‡Department of Chemical Engineering. Aragon Institute of Nanoscience (INA), University of Zaragoza, Campus Río Ebro-Edificio I+D, C/Poeta Mariano Esquillor S/N, 50018 Zaragoza, Spain
| | - R Gonçalves
- †Centro/Departamento de Física, Universidade do Minho, 4710-057 Braga, Portugal
- §Centro/Departamento de Química, Universidade do Minho, 4710-057 Braga, Portugal
| | - G Botelho
- §Centro/Departamento de Química, Universidade do Minho, 4710-057 Braga, Portugal
| | - E V Ramana
- ∥Departamento de Física, Universidade de Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - S K Mendiratta
- ∥Departamento de Física, Universidade de Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - V Sebastian
- ‡Department of Chemical Engineering. Aragon Institute of Nanoscience (INA), University of Zaragoza, Campus Río Ebro-Edificio I+D, C/Poeta Mariano Esquillor S/N, 50018 Zaragoza, Spain
- ⊥CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/Monforte de Lemos 3-5, Pabellón 11, 28029 Madrid, Spain
| | - S Lanceros-Mendez
- †Centro/Departamento de Física, Universidade do Minho, 4710-057 Braga, Portugal
| |
Collapse
|
40
|
Gonçalves R, Martins P, Moya X, Ghidini M, Sencadas V, Botelho G, Mathur ND, Lanceros-Mendez S. Magnetoelectric CoFe2O4/polyvinylidene fluoride electrospun nanofibres. Nanoscale 2015; 7:8058-8061. [PMID: 25871851 DOI: 10.1039/c5nr00453e] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Magnetoelectric 0-1 composites comprising CoFe2O4 (CFO) nanoparticles in a polyvinylidene fluoride (PVDF) polymer-fibre matrix have been prepared by electrospinning. The average diameter of the electrospun composite fibres is ∼325 nm, independent of the nanoparticle content, and the amount of the crystalline polar β phase is strongly enhanced when compared to pure PVDF polymer fibres. The piezoelectric response of these electroactive nanofibres is modified by an applied magnetic field, thus evidencing the magnetoelectric character of the CFO/PVDF 0-1 composites.
Collapse
Affiliation(s)
- R Gonçalves
- Centro/Departamento de Física, Universidade do Minho, 4710-057, Braga, Portugal.
| | | | | | | | | | | | | | | |
Collapse
|
41
|
Duarte F, Lemes R, Vasconcelos J, Rocha F, Zalcberg I, Coutinho D, Silla L, Valim V, Barbosa M, Santos T, Gonçalves R, Carlos L, Vasconcelos P. 182 ANALYSIS OF EXPANSION MESENCHYMAL STROMAL IN PATIENTS WITH LOW RISK MYELODYSPLASTIC SYNDROME. Leuk Res 2015. [DOI: 10.1016/s0145-2126(15)30183-1] [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: 10/23/2022]
|
42
|
Duarte F, Lemes R, Vasconcelos J, Rocha F, Zalcberg I, Coutinho D, Silla L, Valim V, Barbosa M, Santos T, Gonçalves R, Carlos L, Vasconcelos P. 214 ANALYSIS OF PROTEIN EXPRESSION AND CHANGES IN GENE P53 IN CELLS AND HEMATOPOIETIC MESENCHYMAL BONE MARROW IN PATIENTS WITH LOW RISK MYELODYSPLASTIC SYNDROME. Leuk Res 2015. [DOI: 10.1016/s0145-2126(15)30215-0] [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: 10/23/2022]
|
43
|
Maceiras A, Martins P, Gonçalves R, Botelho G, Venkata Ramana E, Mendiratta S, San Sebastián M, Vilas J, Lanceros-Mendez S, León L. High-temperature polymer based magnetoelectric nanocomposites. Eur Polym J 2015. [DOI: 10.1016/j.eurpolymj.2015.01.020] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
44
|
Gonçalves R, Machado A, Loureiro D, Cerejeira J. Adult Psychiatric Comorbidities of Attention-deficit Hyperactivity Disorder Diagnosed in Childhood– Systematic Review. Eur Psychiatry 2015. [DOI: 10.1016/s0924-9338(15)30775-6] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
|
45
|
Mortera-Balsa V, Penderis J, Wessmann A, Gonçalves R, Lowrie M, Gutierrez-Quintana R. Magnetic resonance imaging of the lentiform nuclei in dogs with portosystemic shunts. J Small Anim Pract 2015; 56:307-11. [PMID: 25677834 DOI: 10.1111/jsap.12337] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2014] [Revised: 12/30/2014] [Accepted: 01/01/2015] [Indexed: 12/11/2022]
Abstract
OBJECTIVES To develop and evaluate a method to quantify the T1-weighted magnetic resonance imaging signal intensity of the lentiform nuclei in dogs, and to determine if there is any significant difference in this signal intensity between dogs with portosystemic shunts and a control group. MATERIALS AND METHODS A retrospective blinded study was performed to investigate the reliability and use of a quantitative method for assessing the T1-weighted magnetic resonance imaging signal intensity of the lentiform nuclei in dogs with and without portosystemic shunts. The lentiform nuclei index (mean lentiform nucleus signal intensity/mean white matter signal intensity) was calculated for nine dogs with portosystemic shunts and a control group of 14 dogs. RESULTS The intra- and inter-observer intraclass correlation coefficients were considered excellent (>0 · 75), suggesting that the lentiform nuclei index is a reliable method. The dogs with portosystemic shunts had a higher lentiform nuclei index than the control group (P = 0 · 0127). CLINICAL SIGNIFICANCE This method of quantifying the T1-weighted magnetic resonance imaging signal intensity of the lentiform nuclei was reliable and showed that dogs with portosystemic shunts tend to have increased signal intensity. Further prospective studies are necessary to investigate the clinical significance and applications of these findings.
Collapse
Affiliation(s)
- V Mortera-Balsa
- School of Veterinary Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, G61 1QH
| | | | | | | | | | | |
Collapse
|
46
|
Gonçalves R, Martins P, Correia DM, Sencadas V, Vilas JL, León LM, Botelho G, Lanceros-Méndez S. Development of magnetoelectric CoFe2O4 /poly(vinylidene fluoride) microspheres. RSC Adv 2015. [DOI: 10.1039/c5ra04409j] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Magnetoelectric microspheres based on piezoelectric poly(vinylidene fluoride) (PVDF) and magnetostrictive CoFe2O4 (CFO), a novel morphology for polymer-based ME materials, have been developed by an electrospray process.
Collapse
Affiliation(s)
- R. Gonçalves
- Centro/Departamento de Física
- Universidade do Minho
- 4710-057 Braga
- Portugal
- Centro/Departamento de Química
| | - P. Martins
- Centro/Departamento de Física
- Universidade do Minho
- 4710-057 Braga
- Portugal
| | - D. M. Correia
- Centro/Departamento de Física
- Universidade do Minho
- 4710-057 Braga
- Portugal
- Centro/Departamento de Química
| | - V. Sencadas
- Centro/Departamento de Física
- Universidade do Minho
- 4710-057 Braga
- Portugal
| | - J. L. Vilas
- Departamento de Química Física
- Facultad de Ciencia y Tecnología
- Universidad del País Vasco/EHU
- Bilbao E-48080
- Spain
| | - L. M. León
- Departamento de Química Física
- Facultad de Ciencia y Tecnología
- Universidad del País Vasco/EHU
- Bilbao E-48080
- Spain
| | - G. Botelho
- Centro/Departamento de Química
- Universidade do Minho
- 4710-057 Braga
- Portugal
| | - S. Lanceros-Méndez
- Centro/Departamento de Física
- Universidade do Minho
- 4710-057 Braga
- Portugal
| |
Collapse
|
47
|
Gonçalves R, Cunha AS, Castro Benitez C, Pedano N, Sebagh M, Adam R, Vibert E, Cherqui D, Castaing D. 373. Long survival can be obtained after liver resection for single metastases from NET. Eur J Surg Oncol 2014. [DOI: 10.1016/j.ejso.2014.08.363] [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: 10/24/2022] Open
|
48
|
Gonçalves R, Adam R, Castro Benitez C, Ciacio O, Sebagh M, Cunha AS, Vibert E, Cherqui D, Castaing D. 348. Hepatocellular adenoma in male patients. Eur J Surg Oncol 2014. [DOI: 10.1016/j.ejso.2014.08.337] [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: 10/24/2022] Open
|
49
|
Gonçalves R, Szmuchrowski LA, Prado LS, Couto BP, Machado J, Damasceno VO, Lamounier JA. Selected anthropometric variables and aerobic fitness as predictors of cardiovascular disease risk in children. Biol Sport 2014; 32:255-60. [PMID: 26424930 PMCID: PMC4577564 DOI: 10.5604/20831862.1163371] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [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: 10/30/2013] [Revised: 04/11/2014] [Accepted: 12/05/2014] [Indexed: 01/19/2023] Open
Abstract
The aim of this study was to assess the suitability of body mass index, waist circumference, waist-to-height ratio and aerobic fitness as predictors of cardiovascular risk factor clustering in children. A cross-sectional study was conducted with 290 school boys and girls from 6 to 10 years old, randomly selected. Blood was collected after a 12-hour fasting period. Blood pressure, waist circumference (WC), height and weight were evaluated according to international standards. Aerobic fitness (AF) was assessed by the 20-metre shuttle-run test. Clustering was considered when three of these factors were present: high systolic or diastolic blood pressure, high low-density lipoprotein (LDL) cholesterol, high triglycerides, high plasma glucose, high insulin concentrations and low high-density lipoprotein (HDL) cholesterol. A ROC curve identified the cut-off points of body mass index (BMI), WC, waist-to-height ratio (WHtR) and AF as predictors of risk factor clustering. BMI, WC and WHR resulted in significant areas under the ROC curves, which was not observed for AF. The anthropometric variables were good predictors of cardiovascular risk factor clustering in both sexes, whereas aerobic fitness should not be used to identify cardiovascular risk factor clustering in these children.
Collapse
Affiliation(s)
- R Gonçalves
- Universidade Federal de Minas Gerais, Brazil ; Universidade de Itaúna, Brazil
| | | | - L S Prado
- Universidade Federal de Minas Gerais, Brazil
| | - B P Couto
- Universidade Federal de Minas Gerais, Brazil
| | - Jcq Machado
- Universidade Federal de Minas Gerais, Brazil
| | | | | |
Collapse
|
50
|
Gonçalves R, Volk H, Smith PM, Penderis J, Garosi L, MacKillop E, de Stefani A, Cherubini G, McConnell JF. Corpus callosal abnormalities in dogs. J Vet Intern Med 2014; 28:1275-9. [PMID: 24839863 PMCID: PMC4857934 DOI: 10.1111/jvim.12371] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [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: 01/14/2014] [Revised: 02/25/2014] [Accepted: 04/08/2014] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Corpus callosal abnormalities (CCA) in dogs have been only sporadically reported and are poorly characterized. HYPOTHESIS/OBJECTIVES To describe the clinical presentation and magnetic resonance imaging (MRI) characteristics of dogs with CCA. ANIMALS Fifteen client-owned dogs. METHODS Retrospective study. Records of the contributing institutions were reviewed to identify dogs diagnosed with malformations affecting the corpus callosum (CC); cases in which the CCA was thought to be secondary were excluded. RESULTS The most represented breeds were Staffordshire Bull Terriers (5/15) and Miniature Schnauzers (3/15; n = 3, 20%) and the mean age at time of presentation of 19 months (range 3-81 months). The clinical signs most commonly reported were adipsia/hypodipsia with associated hypernatremia (12/15), tremors (6/15), and seizures (6/15). Review of the MR images revealed that 10 dogs had absence of the rostral CC and hypoplasia of the caudal portion, 4 dogs had a diffusely hypoplastic and dysplastic CC, and 1 dog had a diffusely hypoplastic CC. In 14 cases, there was abnormal cortical development with fusion of the ventral frontal lobes and part of the diencephalon, indicating lobar holoprosencephaly. CONCLUSIONS AND CLINICAL IMPORTANCE Previous literature has mainly associated CCA with adipsia and only 12 of 15 dogs in the current series demonstrated this abnormality. There are different degrees of the malformation but in 10 dogs the rostral portion of the CC is most severely affected. Fourteen dogs have simultaneous fusion of the midline structures rostral to the CC; this region has several structures involved in thirst regulation and might explain this derangement.
Collapse
Affiliation(s)
- R Gonçalves
- Department of Veterinary Science, Small Animal Teaching Hospital, University of Liverpool, Neston, UK
| | | | | | | | | | | | | | | | | |
Collapse
|