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Santos-Ferreira D, Guimarães B, Ladeiras-Lopes R, Gonçalves-Teixeira P, Diaz SO, Ferreira P, Gonçalves F, Cardoso RG, Ferreira MA, Chaves PC, Fontes-Carvalho R, Leite-Moreira A. Digital flashcards and medical physiology performance: a dose-dependent effect. Adv Physiol Educ 2024; 48:80-87. [PMID: 38031724 DOI: 10.1152/advan.00138.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 11/07/2023] [Accepted: 11/24/2023] [Indexed: 12/01/2023]
Abstract
Use of digital flashcards promotes active recall, spaced repetition, and self-assessment academic principles. This work explores the association and dose-dependent effect of this study method and locomotor (LP) and cardiovascular physiology (CP) grades. A single-faculty cohort study of medical LP and CP students was conducted, and 155 and 676 flashcards, respectively, were created through Moodle. An exploratory analysis examined three exam results (2019), and a confirmatory study used a fourth exam (2021) in another CP cohort. Of 685 students enrolled, 558 participated in the exploratory analysis: 319 (69%) for LP and 311 (84%) for CP, of which 203 LP and 267 CP students were flashcard users. Median grades were higher among flashcard users, and the number of cards reviewed was positively correlated with grades (r = 0.275 to 0.388 for LP and r = 0.239 to 0.432 for CP, P < 0.001). Multiple linear regression models confirmed a positive dose-dependent association between results and the number of flashcards studied: for every 100 LP cards reviewed, exam grades increased 0.44-0.75 on a 0-20 scale range (P < 0.001), and for every 1,000 CP flashcards, results raised 0.81-1.08 values (P < 0.05). These findings were confirmed in the 2021 CP cohort of 269 participants, of whom 67% were flashcard users. Digital flashcard revision has a consistent positive dose-dependent association on LP and CP grades.NEW & NOTEWORTHY Implementing flashcard-based strategies is a feasible way to promote active recall, spaced repetition, and self-assessment, and students are highly adherent to these initiatives. There is a positive dose-dependent association between the number of flashcards reviewed and physiology grades. These results are consistent across different physiology subjects, under different cohorts, over short and medium terms.
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Affiliation(s)
- Diogo Santos-Ferreira
- UnIC@RISE, Department of Surgery and Physiology, Faculty of Medicine of the University of Porto, Porto, Portugal
- Cardiology Department, Centro Hospitalar Vila Nova de Gaia/Espinho, Vila Nova de Gaia, Portugal
| | - Bruno Guimarães
- Physical Medicine and Rehabilitation Department, Centro Hospitalar de Entre Douro e Vouga, Santa Maria da Feira, Portugal
| | - Ricardo Ladeiras-Lopes
- UnIC@RISE, Department of Surgery and Physiology, Faculty of Medicine of the University of Porto, Porto, Portugal
| | - Pedro Gonçalves-Teixeira
- UnIC@RISE, Department of Surgery and Physiology, Faculty of Medicine of the University of Porto, Porto, Portugal
- Cardiology Department, Centro Hospitalar Vila Nova de Gaia/Espinho, Vila Nova de Gaia, Portugal
| | - Sílvia Oliveira Diaz
- UnIC@RISE, Department of Surgery and Physiology, Faculty of Medicine of the University of Porto, Porto, Portugal
| | - Pedro Ferreira
- Faculty of Medicine of the University of Porto, Porto, Portugal
| | - Francisco Gonçalves
- UnIC@RISE, Department of Surgery and Physiology, Faculty of Medicine of the University of Porto, Porto, Portugal
- Nephrology Department, Centro Hospitalar Universitário de São João, Porto, Portugal
| | - Rita Gonçalves Cardoso
- UnIC@RISE, Department of Surgery and Physiology, Faculty of Medicine of the University of Porto, Porto, Portugal
- Anesthesiology Department, Centro Hospitalar Universitário de São João, Porto, Portugal
| | - Maria Amélia Ferreira
- UnIC@RISE, Department of Surgery and Physiology, Faculty of Medicine of the University of Porto, Porto, Portugal
| | - Paulo Castro Chaves
- UnIC@RISE, Department of Surgery and Physiology, Faculty of Medicine of the University of Porto, Porto, Portugal
- Internal Medicine Department, Centro Hospitalar Universitário de São João, Porto, Portugal
| | - Ricardo Fontes-Carvalho
- UnIC@RISE, Department of Surgery and Physiology, Faculty of Medicine of the University of Porto, Porto, Portugal
- Cardiology Department, Centro Hospitalar Vila Nova de Gaia/Espinho, Vila Nova de Gaia, Portugal
| | - Adelino Leite-Moreira
- UnIC@RISE, Department of Surgery and Physiology, Faculty of Medicine of the University of Porto, Porto, Portugal
- Cardiothoracic Surgery Department, Centro Hospitalar Universitário de São João, Porto, Portugal
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Ferreira P, Soares R, López-Fernández H, Vazquez N, Reboiro-Jato M, Vieira CP, Vieira J. Multiple Lines of Evidence Support 199 SARS-CoV-2 Positively Selected Amino Acid Sites. Int J Mol Sci 2024; 25:2428. [PMID: 38397104 PMCID: PMC10889775 DOI: 10.3390/ijms25042428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 02/03/2024] [Accepted: 02/09/2024] [Indexed: 02/25/2024] Open
Abstract
SARS-CoV-2 amino acid variants that contribute to an increased transmissibility or to host immune system escape are likely to increase in frequency due to positive selection and may be identified using different methods, such as codeML, FEL, FUBAR, and MEME. Nevertheless, when using different methods, the results do not always agree. The sampling scheme used in different studies may partially explain the differences that are found, but there is also the possibility that some of the identified positively selected amino acid sites are false positives. This is especially important in the context of very large-scale projects where hundreds of analyses have been performed for the same protein-coding gene. To account for these issues, in this work, we have identified positively selected amino acid sites in SARS-CoV-2 and 15 other coronavirus species, using both codeML and FUBAR, and compared the location of such sites in the different species. Moreover, we also compared our results to those that are available in the COV2Var database and the frequency of the 10 most frequent variants and predicted protein location to identify those sites that are supported by multiple lines of evidence. Amino acid changes observed at these sites should always be of concern. The information reported for SARS-CoV-2 can also be used to identify variants of concern in other coronaviruses.
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Affiliation(s)
- Pedro Ferreira
- Instituto de Investigação e Inovação em Saúde (i3S), Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal; (P.F.); (R.S.); (C.P.V.)
- Instituto de Biologia Molecular e Celular (IBMC), Rua Alfredo Allen 208, 4200-135 Porto, Portugal
- School of Medicine and Biomedical Sciences (ICBAS), Porto University, Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - Ricardo Soares
- Instituto de Investigação e Inovação em Saúde (i3S), Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal; (P.F.); (R.S.); (C.P.V.)
- Instituto de Biologia Molecular e Celular (IBMC), Rua Alfredo Allen 208, 4200-135 Porto, Portugal
- School of Medicine and Biomedical Sciences (ICBAS), Porto University, Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
- Faculdade de Ciências da Universidade do Porto (FCUP), Rua do Campo Alegre s/n, 4169-007 Porto, Portugal
| | - Hugo López-Fernández
- CINBIO, Department of Computer Science, ESEI—Escuela Superior de Ingeniería Informática, Universidade de Vigo, 32004 Ourense, Spain; (H.L.-F.); (M.R.-J.)
- CINBIO, SING Research Group, Galicia Sur Health Research Institute (IIS Galicia Sur), SERGAS-UVIGO, 36213 Vigo, Spain
| | - Noé Vazquez
- CINBIO, Department of Computer Science, ESEI—Escuela Superior de Ingeniería Informática, Universidade de Vigo, 32004 Ourense, Spain; (H.L.-F.); (M.R.-J.)
- CINBIO, SING Research Group, Galicia Sur Health Research Institute (IIS Galicia Sur), SERGAS-UVIGO, 36213 Vigo, Spain
| | - Miguel Reboiro-Jato
- CINBIO, Department of Computer Science, ESEI—Escuela Superior de Ingeniería Informática, Universidade de Vigo, 32004 Ourense, Spain; (H.L.-F.); (M.R.-J.)
- CINBIO, SING Research Group, Galicia Sur Health Research Institute (IIS Galicia Sur), SERGAS-UVIGO, 36213 Vigo, Spain
| | - Cristina P. Vieira
- Instituto de Investigação e Inovação em Saúde (i3S), Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal; (P.F.); (R.S.); (C.P.V.)
- Instituto de Biologia Molecular e Celular (IBMC), Rua Alfredo Allen 208, 4200-135 Porto, Portugal
| | - Jorge Vieira
- Instituto de Investigação e Inovação em Saúde (i3S), Universidade do Porto, Rua Alfredo Allen 208, 4200-135 Porto, Portugal; (P.F.); (R.S.); (C.P.V.)
- Instituto de Biologia Molecular e Celular (IBMC), Rua Alfredo Allen 208, 4200-135 Porto, Portugal
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Valente G, Ferreira P, Hernández-Rodríguez MA, Brites CDS, Amaral JS, Zelenovskii P, Paz FAA, Guieu S, Rocha J, Souto M. Exploring the Luminescence, Redox, and Magnetic Properties in a Multivariate Metal-Organic Radical Framework. Chem Mater 2024; 36:1333-1341. [PMID: 38370275 PMCID: PMC10870702 DOI: 10.1021/acs.chemmater.3c02460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 01/04/2024] [Accepted: 01/05/2024] [Indexed: 02/20/2024]
Abstract
Persistent neutral organic radicals are excellent building blocks for the design of functional molecular materials due to their unique electronic, magnetic, and optical properties. Among them, triphenylmethyl radical derivatives have attracted a lot of interest as luminescent doublet emitters. Although neutral organic radicals have been underexplored as linkers for building metal-organic frameworks (MOFs), they hold great potential as organic elements that could introduce additional electronic properties within these frameworks. Herein, we report the synthesis and characterization of a novel multicomponent metal-organic radical framework (PTMTCR@NR-Zn MORF), which is constructed from the combination of luminescent perchlorotriphenylmethyl tricarboxylic acid radical (PTMTCR) and nonemissive nonradical (PTMTCNR) organic linkers and Zn(II) ions. The PTMTCR@NR-Zn MORF structure is layered with microporous one-dimensional channels embedded within these layers. Kelvin probe force microscopy further confirmed the presence of both organic nonradical and radical linkers in the framework. The luminescence properties of the PTMTCR ligand (first studied in solution and in the solid state) were maintained in the radical-containing PTMTCR@NR-Zn MORF at room temperature as fluorescence solid-state quenching is suppressed thanks to the isolation of the luminescent radical linkers. In addition, magnetic and electrochemical properties were introduced to the framework due to the incorporation of the paramagnetic organic radical ligands. This work paves the way for the design of stimuli-responsive hybrid materials with tunable luminescence, electrochemical, and magnetic properties by the proper combination of closed- and open-shell organic linkers within the same framework.
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Affiliation(s)
- Gonçalo Valente
- Department
of Chemistry, CICECO-Aveiro Institute of Materials, University of Aveiro, Aveiro 3810-393, Portugal
| | - Pedro Ferreira
- Department
of Chemistry, CICECO-Aveiro Institute of Materials, University of Aveiro, Aveiro 3810-393, Portugal
| | | | - Carlos D. S. Brites
- Department
of Physics, CICECO-Aveiro Institute of Materials, University of Aveiro, Aveiro 3810-393, Portugal
| | - João S. Amaral
- Department
of Physics, CICECO-Aveiro Institute of Materials, University of Aveiro, Aveiro 3810-393, Portugal
| | - Pavel Zelenovskii
- Department
of Physics, CICECO-Aveiro Institute of Materials, University of Aveiro, Aveiro 3810-393, Portugal
| | - Filipe A. Almeida Paz
- Department
of Chemistry, CICECO-Aveiro Institute of Materials, University of Aveiro, Aveiro 3810-393, Portugal
| | - Samuel Guieu
- Department
of Chemistry, CICECO-Aveiro Institute of Materials, University of Aveiro, Aveiro 3810-393, Portugal
- Department
of Chemistry, LAQV-REQUIMTE, University
of Aveiro, Aveiro 3810-393, Portugal
| | - João Rocha
- Department
of Chemistry, CICECO-Aveiro Institute of Materials, University of Aveiro, Aveiro 3810-393, Portugal
| | - Manuel Souto
- Department
of Chemistry, CICECO-Aveiro Institute of Materials, University of Aveiro, Aveiro 3810-393, Portugal
- CIQUS,
Centro Singular de Investigación en Química Bioloxica
e Materiais Moleculares, Departamento de Química-Física, Universidade de Santiago de Compostela, 15782 Santiago
de Compostela, Spain
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Razavi-Shearer D, Child H, Razavi-Shearer K, Voeller A, Razavi H, Buti M, Tacke F, Terrault N, Zeuzem S, Abbas Z, Aghemo A, Akarca U, Al Masri N, Alalwan A, Blomé MA, Jerkeman A, Aleman S, Kamal H, Alghamdi A, Alghamdi M, Alghamdi S, Al-Hamoudi W, Ali E, Aljumah A, Altraif I, Amarsanaa J, Asselah T, Baatarkhuu O, Babameto A, Ben-Ari Z, Berg T, Biondi M, Braga W, Brandão-Mello C, Brown R, Brunetto M, Cabezas J, Cardoso M, Martins A, Chan H, Cheinquer H, Chen CJ, Yang HI, Chen PJ, Chien CH, Chuang WL, Garza LC, Coco B, Coffin C, Coppola N, Cornberg M, Craxi A, Crespo J, Cuko L, De Ledinghen V, Duberg AS, Etzion O, Ferraz M, Ferreira P, Forns X, Foster G, Fung J, Gaeta G, García-Samaniego J, Genov J, Gheorghe L, Gholam P, Gish R, Glenn J, Hamid S, Hercun J, Hsu YC, Hu CC, Huang JF, Idilman R, Jafri W, Janjua N, Jelev D, Jia J, Kåberg M, Kaita K, Kao JH, Khan A, Kim D, Kondili L, Lagging M, Lampertico P, Lázaro P, Lazarus J, Lee MH, Yang HI, Lim YS, Lobato C, Macedo G, Marinho R, Marotta P, Mendes-Correa M, Méndez-Sánchez N, Navas MC, Ning Q, Örmeci N, Orrego M, Osiowy C, Pan C, Pessoa M, Piracha Z, Pop C, Qureshi H, Raimondo G, Ramji A, Ribeiro S, Ríos-Hincapié C, Rodríguez M, Rosenberg W, Roulot D, Ryder S, Saeed U, Safadi R, Shouval D, Sanai F, Sanchez-Avila J, Santantonio T, Sarrazin C, Seto WK, Seto WK, Simonova M, Tanaka J, Tergast T, Tsendsuren O, Valente C, Villalobos-Salcedo J, Waheed Y, Wong G, Wong V, Yip T, Wong V, Wu JC, Yang HI, Yu ML, Yuen MF, Yurdaydin C, Zuckerman E. Adjusted estimate of the prevalence of hepatitis delta virus in 25 countries and territories. J Hepatol 2024; 80:232-242. [PMID: 38030035 DOI: 10.1016/j.jhep.2023.10.043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 10/13/2023] [Accepted: 10/30/2023] [Indexed: 12/01/2023]
Abstract
BACKGROUND & AIMS Hepatitis delta virus (HDV) is a satellite RNA virus that requires the hepatitis B virus (HBV) for assembly and propagation. Individuals infected with HDV progress to advanced liver disease faster than HBV-monoinfected individuals. Recent studies have estimated the global prevalence of anti-HDV antibodies among the HBV-infected population to be 5-15%. This study aimed to better understand HDV prevalence at the population level in 25 countries/territories. METHODS We conducted a literature review to determine the prevalence of anti-HDV and HDV RNA in hepatitis B surface antigen (HBsAg)-positive individuals in 25 countries/territories. Virtual meetings were held with experts from each setting to discuss the findings and collect unpublished data. Data were weighted for patient segments and regional heterogeneity to estimate the prevalence in the HBV-infected population. The findings were then combined with The Polaris Observatory HBV data to estimate the anti-HDV and HDV RNA prevalence in each country/territory at the population level. RESULTS After adjusting for geographical distribution, disease stage and special populations, the anti-HDV prevalence among the HBsAg+ population changed from the literature estimate in 19 countries. The highest anti-HDV prevalence was 60.1% in Mongolia. Once adjusted for the size of the HBsAg+ population and HDV RNA positivity rate, China had the highest absolute number of HDV RNA+ cases. CONCLUSIONS We found substantially lower HDV prevalence than previously reported, as prior meta-analyses primarily focused on studies conducted in groups/regions that have a higher probability of HBV infection: tertiary care centers, specific risk groups or geographical regions. There is large uncertainty in HDV prevalence estimates. The implementation of reflex testing would improve estimates, while also allowing earlier linkage to care for HDV RNA+ individuals. The logistical and economic burden of reflex testing on the health system would be limited, as only HBsAg+ cases would be screened. IMPACT AND IMPLICATIONS There is a great deal of uncertainty surrounding the prevalence of hepatitis delta virus among people living with hepatitis B virus at the population level. In this study, we aimed to better understand the burden in 25 countries and territories, to refine techniques that can be used in future analyses. We found a lower prevalence in the majority of places studied than had been previously reported. These data can help inform policy makers on the need to screen people living with hepatitis B virus to find those coinfected with hepatitis delta virus and at high risk of progression, while also highlighting the pitfalls that other researchers have often fallen into.
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Pereira CS, Santiago LM, Rosendo Silva I, Ferreira P. Validation and Cultural Adaptation of the Problem Areas in Diabetes-5 (PAID-5) Scale to European Portuguese. ACTA MEDICA PORT 2024; 37:36-41. [PMID: 37498193 DOI: 10.20344/amp.18995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Accepted: 05/26/2023] [Indexed: 07/28/2023]
Abstract
INTRODUCTION Diabetes distress syndrome (DDS) can lead to poor outcomes and should be assessed with adapted and validated tools. One of these tools is the Problem Areas in Diabetes (PAID) scale, which assesses diabetes distress in people suffering from diabetes (PsD). A short five-item form, PAID-5, is an easier and quicker alternative to be used in clinical and research practices, than the previous one with 20-items and has been validated by the original authors. This study intended to perform the cultural adaptation and validation of the PAID-5 scale in European Portuguese. METHODS To create the Portuguese version of PAID-5, translation-back translation, a clinical review, and a cognitive debriefing panel were performed. A convenience sample of 90 PsD was studied in three primary healthcare units for reliability and validity tests. Reliability was studied by the internal consistency (Cronbach's alpha) and the interval coefficient correlation (ICC) under a test-retest design. Structural validity was studied by principal component analysis. The construct validity was tested by the sensitivity of the PAID-5 total score with age, most recent HbA1c test, and socioeconomic class by the Socio-Economic Deprivation Index (SEDI). Criterion validity was tested by correlating the PAID-5 total score with the psychological distress questions of the Diabetes Health Profile 18 Questions (DHP-PDQ). RESULTS A Cronbach's alpha coefficient value of 0.905 and an ICC of 0.905 were computed. In a sample of n = 90 PsD, 55.6% were males, 63.3% aged 65 years or more, SEDI was 5.2 ± 0.8 [3 to 6], 44.4% studied for less than 4 years, and 18.9% were living alone. The Spearman correlation between PAID-5 and DHP-PDQ total scores was ρ = 0.382, p < 0.001, between PAID-5 total score and age was ρ = -0.207, p = 0.050 and between PAID-5 total score and most recent HbA1c knowledge was ρ = 0.275, p = 0.040. There was no significant relationship between PAID-5 total score and SEDI ρ = 0.080, p = 0.452. CONCLUSION DDS can now be assessed in the Portuguese context, accounting for better intervention by primary care teams. PAID-5 has good psychometric properties and is a reliable scale to identify diabetes-specific distress in the Portuguese diabetic population.
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Affiliation(s)
| | - Luiz Miguel Santiago
- Faculdade de Medicina. Universidade de Coimbra. Coimbra. & Centro de Estudos e Investigação em Saúde - CEISUC. Universidade de Coimbra. Coimbra. Portugal
| | - Inês Rosendo Silva
- Faculdade de Medicina. Universidade de Coimbra. Coimbra. & Unidade de Saúde Familiar Coimbra Centro. Agrupamento de Centros de Saúde Baixo Mondego. Coimbra. Portugal
| | - Pedro Ferreira
- Centro de Estudos e Investigação em Saúde - CEISUC. Universidade de Coimbra. Coimbra. Portugal
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Pinho M, Ferreira P, Gomes S. Healthcare professionals' voice as a road to burnout and work engagement? The role of relational outcomes: An exploratory study of European countries. J Health Organ Manag 2023; ahead-of-print. [PMID: 38061881 DOI: 10.1108/jhom-06-2023-0200] [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: 12/18/2023]
Abstract
PURPOSE Healthcare professionals are key in healthcare organisations but are subject to long working hours and may have to make complex life-and-death decisions. As frontline agents dealing with human lives, giving them a voice is paramount. This study explores the impact of employee voice (assessed based on employee perceptions on how much they are consulted and how much influence they have on task-related decisions) on health professionals' work engagement and burnout when mediated by relational outcomes (perceived organisational support, workplace trust, workplace recognition and meaningful work). DESIGN/METHODOLOGY/APPROACH A sample of 3,266 health professionals retrieved from the European Working Condition Survey was used. The quantitative analysis was performed using the partial least square structural equation modelling and multiple regression analyses. FINDINGS The results indicate that employee voice has a direct positive impact on work engagement, but employee voice's direct effects on burnout still need to be confirmed. Relational outcomes are found to mediate the relationship between employee voice and burnout (decreasing it) and between employee voice and work engagement (increasing it). PRACTICAL IMPLICATIONS Practices of employee voice in the workplace are fundamental to promoting health professionals' well-being. Trust, recognition, support and the feeling of doing meaningful work increase the influence of employee voice, especially in reducing the levels of burnout. ORIGINALITY/VALUE This is the first study that assesses, at a European level, the importance that 'giving health professionals a voice' has on crucial employee outcomes: work engagement, burnout and relational outcomes.
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Affiliation(s)
- Micaela Pinho
- DEG, Research on Economics, Management and Information Technologies (REMIT), Portucalense Institute for Legal Reseach (IJP), University Portucalense, Oporto, Portugal
- Agueda School of Technology and Management, University of Aveiro, Aveiro, Portugal
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Ferreira P, Warkentin S, Oliveira A. Appetitive traits and food groups consumption in school-aged children: prospective associations from the Generation XXI birth cohort. Eat Weight Disord 2023; 28:67. [PMID: 37542554 PMCID: PMC10404169 DOI: 10.1007/s40519-023-01586-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Accepted: 11/25/2022] [Indexed: 08/07/2023] Open
Abstract
PURPOSE Appetite can influence children's dietary choices; however, this relationship in school-aged children is still unclear. We aimed to explore the prospective associations between child appetitive traits at age 7 and food consumption at 10 years of age. METHODS The study included 3860 children from the Generation XXI birth cohort, recruited in 2005/2006 in Porto, Portugal. The Children's Eating Behaviour Questionnaire was used to evaluate children's appetitive traits at 7 years. Food consumption was measured at 10 years through a validated Food Frequency Questionnaire. Logistic regression models were performed and adjusted for possible confounders. RESULTS Children with greater Enjoyment of Food at 7 years were 36% more likely to eat fruits ≥ 2 times/day and 54% more likely to eat vegetables > 2.5 times/day at 10 years compared to those with less frequent consumption. Children who ate more in response to negative emotions had higher odds of consuming energy-dense foods (OR = 1.33; 99% CI 1.13-1.58) and salty snacks (OR = 1.28; 99% CI 1.08-1.51) 3 years later. Those with less ability to adjust intake (higher Satiety Responsiveness) and more selective about foods (higher Food Fussiness) at 7 years were less likely to consume vegetables frequently, and were more likely to consume energy-dense foods and sugar-sweetened beverages. CONCLUSIONS Children's appetitive traits at 7 years were associated with the consumption of several food groups at 10 years of age. Eating more in response to negative emotions (Emotional Eating), with less ability to adjust intake (Satiety Responsiveness) and more food selectivity (Food Fussiness) were associated with worse dietary choices (in general, lower fruit and vegetables, and higher energy-dense foods and sugar-sweetened beverages consumption). LEVEL OF EVIDENCE Level III: Evidence obtained from well-designed cohort or case-control analytic studies.
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Affiliation(s)
- Pedro Ferreira
- EPIUnit, Instituto de Saúde Pública, Universidade do Porto [Institute of Public Health, University of Porto], University of Porto, Rua das Taipas nº135, 4050-600, Porto, Portugal
- Laboratory for Integrative and Translational Research in Population Health [ITR], University of Porto, Rua das Taipas nº135, 4050-600, Porto, Portugal
| | - Sarah Warkentin
- EPIUnit, Instituto de Saúde Pública, Universidade do Porto [Institute of Public Health, University of Porto], University of Porto, Rua das Taipas nº135, 4050-600, Porto, Portugal
- Laboratory for Integrative and Translational Research in Population Health [ITR], University of Porto, Rua das Taipas nº135, 4050-600, Porto, Portugal
| | - Andreia Oliveira
- EPIUnit, Instituto de Saúde Pública, Universidade do Porto [Institute of Public Health, University of Porto], University of Porto, Rua das Taipas nº135, 4050-600, Porto, Portugal.
- Laboratory for Integrative and Translational Research in Population Health [ITR], University of Porto, Rua das Taipas nº135, 4050-600, Porto, Portugal.
- Department of Public Health and Forensic Sciences and Medical Education, Faculty of Medicine, University of Porto, Alameda Prof. Hernâni Monteiro, 4200-319, Porto, Portugal.
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Valente MDA, Ferreira P, Lima K, Moreira da Silva IB, Nobre P, Neto I, Pires M, Braz BS, Serrano R, Belo S, Silva O. Vernonia britteniana Root Phytochemical Studies, In Vitro Cercaricidal Activity on the Larval Stage of Schistosoma mansoni and Antioxidant Activities. Plants (Basel) 2023; 12:plants12091788. [PMID: 37176846 PMCID: PMC10181313 DOI: 10.3390/plants12091788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 04/24/2023] [Accepted: 04/26/2023] [Indexed: 05/15/2023]
Abstract
Vernonia britteniana Hiern. (Asteraceae) is a medicinal plant used in traditional Angolan medicine against schistosomiasis. Our study aimed to investigate the phytochemical composition and the cercaricidal and antioxidant activities in vitro of a traditional herbal preparation (Water-Vbr) and a 70% hydroethanolic extract (EtOH70%-Vbr) prepared with this medicinal plant. The activity of the extracts against Schistosoma mansoni cercariae was assessed at different extract concentrations (500, 438, and 125 µg/mL) and at different time intervals, and the phytochemical profiles were obtained by LC-UV-ESI/MS-MS. In addition, the major chemical classes of the identified metabolites were quantified by colorimetry, and the antioxidant potential was assessed using the DPPH and FRAP methods. After 30 min, 100% cercarial mortality was observed at a concentration of 500 μg/mL after exposure, and after 120 min, an LC50 of 438 μg/mL was observed for both extracts. Phenolic acid derivatives (chlorogenic acid, caffeic acid; 3,4-di-O-caffeoylquinic acid; 3,5-di-O-caffeoylquinic acid; and 4,5-di-O-caffeoylquinic acid) and triterpenoids (stigmastane-type steroidal saponins; vernoamyoside D and vernonioside D1; vernoamyoside B; and vernoniamyoside A and C) were identified as the main secondary metabolites. The Water-Vbr extract showed the highest antioxidant activity-DPPH: IC50 = 1.769 ± 0.049 µg/mL; FRAP: mean = 320.80 ± 5.1325 µgAAE/g.
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Affiliation(s)
- Maria Dos Anjos Valente
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Professor Gama Pinto, 1649-003 Lisbon, Portugal
- Instituto de Investigação Veterinária, Bairro Santo António, Huambo 555, Angola
| | - Pedro Ferreira
- Global Health & Tropical Medicine, Medical Parasitology Unit, Universidade Nova de Lisboa, R. da Junqueira 100, 1349-008 Lisbon, Portugal
| | - Katelene Lima
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Professor Gama Pinto, 1649-003 Lisbon, Portugal
| | - Isabel B Moreira da Silva
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Professor Gama Pinto, 1649-003 Lisbon, Portugal
| | - Paula Nobre
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Professor Gama Pinto, 1649-003 Lisbon, Portugal
| | - Isabel Neto
- C.I.I.S.A.-Centre for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, Av. Universidade Técnica, 1300-477 Lisbon, Portugal
| | - Mavilde Pires
- Instituto de Investigação Veterinária, Bairro Santo António, Huambo 555, Angola
| | - Berta São Braz
- C.I.I.S.A.-Centre for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, Av. Universidade Técnica, 1300-477 Lisbon, Portugal
- Associate Laboratory for Animal and Veterinary Sciences (AL4AnimalS), 1300-477 Lisbon, Portugal
| | - Rita Serrano
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Professor Gama Pinto, 1649-003 Lisbon, Portugal
| | - Silvana Belo
- Global Health & Tropical Medicine, Medical Parasitology Unit, Universidade Nova de Lisboa, R. da Junqueira 100, 1349-008 Lisbon, Portugal
| | - Olga Silva
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Professor Gama Pinto, 1649-003 Lisbon, Portugal
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9
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Ferreira P, Bates P, Daoub A, Dass D. Is bisphosphonate use a risk factor for atypical periprosthetic/peri-implant fractures? - A metanalysis of retrospective cohort studies and systematic review of the current evidence. Orthop Traumatol Surg Res 2023; 109:103475. [PMID: 36347461 DOI: 10.1016/j.otsr.2022.103475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Revised: 07/05/2022] [Accepted: 07/18/2022] [Indexed: 11/07/2022]
Abstract
INTRODUCTION Atypical periprosthetic/peri-implant fractures are not recognised in any widely used classification and therefore little focus is given to them. Multiple case reports and case series demonstrate these fractures exist and are related to bisphosphonate (BP) use. HYPOTHESIS Are patients taking long-term BPs at an increased risk of developing an atypical periprosthetic/peri-implant fracture? Is a particular BP drug causing an increased risk of fracture? Is there a correlation between the time of BP use and the incidence of fractures? Do vitamin D analogues or parathyroid hormones reduce the time to union? MATERIAL AND METHODS Systematic review of all available evidence on the existence of periprosthetic/peri-implant atypical fractures in patients taking long-term BPs and metanalysis of available retrospective cohort studies. Selected 1 systematic review, 7 retrospective cohort studies (5 used for metanalysis) and 32 case reports. RESULTS Metanalysis reported a risk ratio of 14.1, p=0.25, suggesting bisphosphonates are a risk factor in the development of periprosthetic/peri-implant atypical fractures. The secondary outcomes couldn't be reliably identified due to the small size of available studies and risk of significant bias. DISCUSSION Atypical periprosthetic/peri-implant fractures are an entity and seem to be associated with the use of bisphosphonates. The benefits of bisphosphonates use outweigh the risks, but clinicians should be aware of atypical fractures and actively search for them when patients on long-term bisphosphonates attend with non-specific pain close to the implant/prosthesis or reduced mobility. LEVEL OF EVIDENCE II, Systematic review and metanalysis.
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Affiliation(s)
- Pedro Ferreira
- Queen Mary University of London and Oswestry/Stoke Trauma and Orthopaedic Training Programme, Mile End Rd, Bethnal Green, London E1 4NS, United Kingdom.
| | - Peter Bates
- Orthopaedic Trauma Sciences - Queen Mary University of London, Lead for orthopaedic trauma, Barts Health, Mile End Rd, Bethnal Green, London E1 4NS, United Kingdom
| | - Ahmed Daoub
- Oswestry/Stoke Trauma and Orthopaedic Training Programme - Robert Jones and Agnes Hunt Hospital, Gobowen, Oswestry SY10 7AG, United Kingdom
| | - Debashis Dass
- Oswestry/Stoke Trauma and Orthopaedic Training Programme - Robert Jones and Agnes Hunt Hospital, Gobowen, Oswestry SY10 7AG, United Kingdom
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10
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Bergen ES, Friedrich A, Scherleitner P, Ferreira P, Kiesel B, Widhalm G, Kiesewetter B, Eckert F, Prager GW, Preusser M, Berghoff AS. Brain metastases from hepatopancreatobiliary malignancies. Clin Exp Metastasis 2023; 40:177-185. [PMID: 36947280 PMCID: PMC10113327 DOI: 10.1007/s10585-023-10201-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Accepted: 02/23/2023] [Indexed: 03/23/2023]
Abstract
While colorectal and gastroesophageal cancer represent the two gastrointestinal (GI) tumor entities with the highest incidence of brain metastatic (BM) disease, data on the clinical course of BM patients from hepatopancreatobiliary malignancies are rare. Patients with cholangiocarcinoma (CCA), hepatocellular carcinoma (HCC), pancreatic ductal adenocarcinoma (PDAC) and gastroenteropancreatic neuroendocrine neoplasms (GEP NEN). Treated for BM between 1991 and 2017 at an academic care center were included. Brain metastases-free survival (BMFS) was defined as interval from first diagnosis until BM development. Overall survival (OS) was defined as interval from diagnosis of BM until death or last date of follow-up. Outcome was correlated with clinical and treatment factors. 29 patients from overall 6102 patients (0.6%) included in the Vienna Brain Metastasis Registry presented with BM from hepatopancreatobiliary primaries including 9 (31.0%) with CCA, 10 (34.5%) with HCC, 7 (24.1%) with PDAC and 3 (10.3%) with GEP NEN as primary tumor. Median BMFS was 21, 12, 14 and 7 months and median OS 4, 4, 6 and 4 months, respectively. Karnofsky Performance Status (KPS) below 80% (p = 0.08), age above 60 years (p = 0.10) and leptomeningeal carcinomatosis (LC) (p = 0.09) diagnosed concomitant to solid BM showed an inverse association with median OS (Cox proportional hazards model). In this cohort of patients with BM from hepatopancreatobiliary tumor entities, prognosis was shown to be very limited. Performance status, age and diagnosis of LC were identified as negative prognostic factors.
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Affiliation(s)
- Elisabeth S Bergen
- Division of Oncology, Department of Medicine I, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria
| | - Alexander Friedrich
- Division of Oncology, Department of Medicine I, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria
| | - Peter Scherleitner
- Division of Oncology, Department of Medicine I, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria
| | - Pedro Ferreira
- Division of Oncology, Department of Medicine I, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria
| | - Barbara Kiesel
- Department of Neurosurgery, Medical University of Vienna, Vienna, Austria
| | - Georg Widhalm
- Department of Neurosurgery, Medical University of Vienna, Vienna, Austria
| | - Barbara Kiesewetter
- Division of Oncology, Department of Medicine I, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria
| | - Franziska Eckert
- Department of Radiation Oncology, Medical University of Vienna, Vienna, Austria
| | - Gerald W Prager
- Division of Oncology, Department of Medicine I, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria
| | - Matthias Preusser
- Division of Oncology, Department of Medicine I, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria
- Christian Doppler Laboratory for Personalized Immunotherapy, Department of Medicine I, Medical University of Vienna, Vienna, Austria
| | - Anna S Berghoff
- Division of Oncology, Department of Medicine I, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria.
- Christian Doppler Laboratory for Personalized Immunotherapy, Department of Medicine I, Medical University of Vienna, Vienna, Austria.
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11
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Eichhoff OM, Stoffel CI, Käsler J, Briker L, Turko P, Karsai G, Zila N, Paulitschke V, Cheng PF, Leitner A, Bileck A, Zamboni N, Irmisch A, Balazs Z, Tastanova A, Pascoal S, Johansen P, Wegmann R, Mena J, Othman A, Viswanathan VS, Wenzina J, Aloia A, Saltari A, Dzung A, Aebersold R, Ak M, Al-Quaddoomi FS, Albert SI, Albinus J, Alborelli I, Andani S, Attinger PO, Bacac M, Baumhoer D, Beck-Schimmer B, Beerenwinkel N, Beisel C, Bernasconi L, Bertolini A, Bodenmiller B, Bonilla X, Bosshard L, Calgua B, Casanova R, Chevrier S, Chicherova N, Coelho R, D'Costa M, Danenberg E, Davidson N, Drãgan MA, Dummer R, Engler S, Erkens M, Eschbach K, Esposito C, Fedier A, Ferreira P, Ficek J, Frei AL, Frey B, Goetze S, Grob L, Gut G, Günther D, Haberecker M, Haeuptle P, Heinzelmann-Schwarz V, Herter S, Holtackers R, Huesser T, Immer A, Irmisch A, Jacob F, Jacobs A, Jaeger TM, Jahn K, James AR, Jermann PM, Kahles A, Kahraman A, Koelzer VH, Kuebler W, Kuipers J, Kunze CP, Kurzeder C, Lehmann KV, Levesque M, Lischetti U, Lugert S, Maass G, Manz MG, Markolin P, Mehnert M, Mena J, Metzler JM, Miglino N, Milani ES, Moch H, Muenst S, Murri R, Ng CK, Nicolet S, Nowak M, Lopez MN, Pedrioli PG, Pelkmans L, Piscuoglio S, Prummer M, Rimmer N, Ritter M, Rommel C, Rosano-González ML, Rätsch G, Santacroce N, Del Castillo JS, Schlenker R, Schwalie PC, Schwan S, Schär T, Senti G, Shao W, Singer F, Sivapatham S, Snijder B, Sobottka B, Sreedharan VT, Stark S, Stekhoven DJ, Tanna T, Theocharides AP, Thomas TM, Tolnay M, Tosevski V, Toussaint NC, Tuncel MA, Tusup M, Van Drogen A, Vetter M, Vlajnic T, Weber S, Weber WP, Wegmann R, Weller M, Wendt F, Wey N, Wicki A, Wildschut MH, Wollscheid B, Yu S, Ziegler J, Zimmermann M, Zoche M, Zuend G, Krauthammer M, Schreiber SL, Hornemann T, Distel M, Snijder B, Dummer R, Levesque MP. ROS Induction Targets Persister Cancer Cells with Low Metabolic Activity in NRAS-Mutated Melanoma. Cancer Res 2023; 83:1128-1146. [PMID: 36946761 DOI: 10.1158/0008-5472.can-22-1826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 10/04/2022] [Accepted: 01/24/2023] [Indexed: 03/23/2023]
Abstract
Clinical management of melanomas with NRAS mutations is challenging. Targeting MAPK signaling is only beneficial to a small subset of patients due to resistance that arises through genetic, transcriptional, and metabolic adaptation. Identification of targetable vulnerabilities in NRAS-mutated melanoma could help improve patient treatment. Here, we used multiomics analyses to reveal that NRAS-mutated melanoma cells adopt a mesenchymal phenotype with a quiescent metabolic program to resist cellular stress induced by MEK inhibition. The metabolic alterations elevated baseline reactive oxygen species (ROS) levels, leading these cells to become highly sensitive to ROS induction. In vivo xenograft experiments and single-cell RNA sequencing demonstrated that intratumor heterogeneity necessitates the combination of a ROS inducer and a MEK inhibitor to inhibit both tumor growth and metastasis. Ex vivo pharmacoscopy of 62 human metastatic melanomas confirmed that MEK inhibitor-resistant tumors significantly benefited from the combination therapy. Finally, oxidative stress response and translational suppression corresponded with ROS-inducer sensitivity in 486 cancer cell lines, independent of cancer type. These findings link transcriptional plasticity to a metabolic phenotype that can be inhibited by ROS inducers in melanoma and other cancers. SIGNIFICANCE Metabolic reprogramming in drug-resistant NRAS-mutated melanoma cells confers sensitivity to ROS induction, which suppresses tumor growth and metastasis in combination with MAPK pathway inhibitors.
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Affiliation(s)
- Ossia M Eichhoff
- Department of Dermatology, University of Zurich, University Hospital Zurich, Zurich, Switzerland
| | - Corinne I Stoffel
- Department of Dermatology, University of Zurich, University Hospital Zurich, Zurich, Switzerland
| | - Jan Käsler
- Department of Dermatology, University of Zurich, University Hospital Zurich, Zurich, Switzerland
| | - Luzia Briker
- Department of Dermatology, University of Zurich, University Hospital Zurich, Zurich, Switzerland
| | - Patrick Turko
- Department of Dermatology, University of Zurich, University Hospital Zurich, Zurich, Switzerland
| | - Gergely Karsai
- Institute for Clinical Chemistry, University Hospital Zurich, Zurich, Switzerland; Zurich Center for Integrative Human Physiology (ZIHP), University of Zurich, Zurich, Switzerland
| | - Nina Zila
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Verena Paulitschke
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Phil F Cheng
- Department of Dermatology, University of Zurich, University Hospital Zurich, Zurich, Switzerland
| | | | - Andrea Bileck
- Joint Metabolome Facility, Faculty of Chemistry, University of Vienna, Vienna, Austria
- Department of Analytical Chemistry, University of Vienna, Vienna, Austria
| | - Nicola Zamboni
- Institute for Molecular Systems Biology, ETH Zurich, Switzerland
| | - Anja Irmisch
- Department of Dermatology, University of Zurich, University Hospital Zurich, Zurich, Switzerland
| | - Zsolt Balazs
- Department of Quantitative Biomedicine, University of Zurich, Zurich, Switzerland
- Biomedical Informatics, University Hospital of Zurich, Zurich, Switzerland
| | - Aizhan Tastanova
- Department of Dermatology, University of Zurich, University Hospital Zurich, Zurich, Switzerland
| | - Susana Pascoal
- St. Anna Children's Cancer Research Institute, Vienna, Austria
| | - Pål Johansen
- Department of Dermatology, University of Zurich, University Hospital Zurich, Zurich, Switzerland
| | - Rebekka Wegmann
- Institute for Molecular Systems Biology, ETH Zurich, Switzerland
| | - Julien Mena
- Institute for Molecular Systems Biology, ETH Zurich, Switzerland
| | - Alaa Othman
- Institute for Molecular Systems Biology, ETH Zurich, Switzerland
| | | | - Judith Wenzina
- Skin and Endothelium Research Division, Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Andrea Aloia
- Institute for Molecular Systems Biology, ETH Zurich, Switzerland
| | - Annalisa Saltari
- Department of Dermatology, University of Zurich, University Hospital Zurich, Zurich, Switzerland
| | - Andreas Dzung
- Department of Dermatology, University of Zurich, University Hospital Zurich, Zurich, Switzerland
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Michael Krauthammer
- Department of Quantitative Biomedicine, University of Zurich, Zurich, Switzerland
- Biomedical Informatics, University Hospital of Zurich, Zurich, Switzerland
| | | | - Thorsten Hornemann
- Institute for Clinical Chemistry, University Hospital Zurich, Zurich, Switzerland; Zurich Center for Integrative Human Physiology (ZIHP), University of Zurich, Zurich, Switzerland
| | - Martin Distel
- St. Anna Children's Cancer Research Institute, Vienna, Austria
| | - Berend Snijder
- Institute for Molecular Systems Biology, ETH Zurich, Switzerland
| | - Reinhard Dummer
- Department of Dermatology, University of Zurich, University Hospital Zurich, Zurich, Switzerland
| | - Mitchell P Levesque
- Department of Dermatology, University of Zurich, University Hospital Zurich, Zurich, Switzerland
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12
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Cabral SM, Ferreira P. Azacytidine-induced pneumonitis in acute myeloid leukaemia. Pulmonology 2023; 29:165-166. [PMID: 35963829 DOI: 10.1016/j.pulmoe.2022.06.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 06/26/2022] [Accepted: 06/30/2022] [Indexed: 11/20/2022] Open
Affiliation(s)
- S Moura Cabral
- Centro Hospitalar e Universitário de Coimbra EPE Coimbra, Coimbra Portugal.
| | - P Ferreira
- Centro Hospitalar e Universitário de Coimbra EPE Coimbra, Coimbra Portugal
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13
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Nadeau SA, Vaughan TG, Beckmann C, Topolsky I, Chen C, Hodcroft E, Schär T, Nissen I, Santacroce N, Burcklen E, Ferreira P, Jablonski KP, Posada-Céspedes S, Capece V, Seidel S, Santamaria de Souza N, Martinez-Gomez JM, Cheng P, Bosshard PP, Levesque MP, Kufner V, Schmutz S, Zaheri M, Huber M, Trkola A, Cordey S, Laubscher F, Gonçalves AR, Aeby S, Pillonel T, Jacot D, Bertelli C, Greub G, Leuzinger K, Stange M, Mari A, Roloff T, Seth-Smith H, Hirsch HH, Egli A, Redondo M, Kobel O, Noppen C, du Plessis L, Beerenwinkel N, Neher RA, Beisel C, Stadler T. Swiss public health measures associated with reduced SARS-CoV-2 transmission using genome data. Sci Transl Med 2023; 15:eabn7979. [PMID: 36346321 PMCID: PMC9765449 DOI: 10.1126/scitranslmed.abn7979] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Genome sequences from evolving infectious pathogens allow quantification of case introductions and local transmission dynamics. We sequenced 11,357 severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) genomes from Switzerland in 2020-the sixth largest effort globally. Using a representative subset of these data, we estimated viral introductions to Switzerland and their persistence over the course of 2020. We contrasted these estimates with simple null models representing the absence of certain public health measures. We show that Switzerland's border closures decoupled case introductions from incidence in neighboring countries. Under a simple model, we estimate an 86 to 98% reduction in introductions during Switzerland's strictest border closures. Furthermore, the Swiss 2020 partial lockdown roughly halved the time for sampled introductions to die out. Last, we quantified local transmission dynamics once introductions into Switzerland occurred using a phylodynamic model. We found that transmission slowed 35 to 63% upon outbreak detection in summer 2020 but not in fall. This finding may indicate successful contact tracing over summer before overburdening in fall. The study highlights the added value of genome sequencing data for understanding transmission dynamics.
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Affiliation(s)
- Sarah A. Nadeau
- Department of Biosystems Science and Engineering, ETH Zurich; 4058, Basel, Switzerland.,SIB Swiss Institute of Bioinformatics; 1015, Lausanne, Switzerland.,Corresponding author. (T.S.); (S.A.N.)
| | - Timothy G. Vaughan
- Department of Biosystems Science and Engineering, ETH Zurich; 4058, Basel, Switzerland.,SIB Swiss Institute of Bioinformatics; 1015, Lausanne, Switzerland
| | | | - Ivan Topolsky
- Department of Biosystems Science and Engineering, ETH Zurich; 4058, Basel, Switzerland.,SIB Swiss Institute of Bioinformatics; 1015, Lausanne, Switzerland
| | - Chaoran Chen
- Department of Biosystems Science and Engineering, ETH Zurich; 4058, Basel, Switzerland.,SIB Swiss Institute of Bioinformatics; 1015, Lausanne, Switzerland
| | - Emma Hodcroft
- SIB Swiss Institute of Bioinformatics; 1015, Lausanne, Switzerland.,Institute for Social and Preventive Medicine, University of Bern; 3012, Bern, Switzerland
| | - Tobias Schär
- Department of Biosystems Science and Engineering, ETH Zurich; 4058, Basel, Switzerland
| | - Ina Nissen
- Department of Biosystems Science and Engineering, ETH Zurich; 4058, Basel, Switzerland
| | - Natascha Santacroce
- Department of Biosystems Science and Engineering, ETH Zurich; 4058, Basel, Switzerland
| | - Elodie Burcklen
- Department of Biosystems Science and Engineering, ETH Zurich; 4058, Basel, Switzerland
| | - Pedro Ferreira
- Department of Biosystems Science and Engineering, ETH Zurich; 4058, Basel, Switzerland.,SIB Swiss Institute of Bioinformatics; 1015, Lausanne, Switzerland
| | - Kim Philipp Jablonski
- Department of Biosystems Science and Engineering, ETH Zurich; 4058, Basel, Switzerland.,SIB Swiss Institute of Bioinformatics; 1015, Lausanne, Switzerland
| | - Susana Posada-Céspedes
- Department of Biosystems Science and Engineering, ETH Zurich; 4058, Basel, Switzerland.,SIB Swiss Institute of Bioinformatics; 1015, Lausanne, Switzerland
| | - Vincenzo Capece
- Department of Biosystems Science and Engineering, ETH Zurich; 4058, Basel, Switzerland
| | - Sophie Seidel
- Department of Biosystems Science and Engineering, ETH Zurich; 4058, Basel, Switzerland.,SIB Swiss Institute of Bioinformatics; 1015, Lausanne, Switzerland
| | | | - Julia M. Martinez-Gomez
- Department of Dermatology, University Hospital Zurich, University of Zurich; 8091, Zurich, Switzerland
| | - Phil Cheng
- Department of Dermatology, University Hospital Zurich, University of Zurich; 8091, Zurich, Switzerland
| | - Philipp P. Bosshard
- Department of Dermatology, University Hospital Zurich, University of Zurich; 8091, Zurich, Switzerland
| | - Mitchell P. Levesque
- Department of Dermatology, University Hospital Zurich, University of Zurich; 8091, Zurich, Switzerland
| | - Verena Kufner
- Institute of Medical Virology, University of Zurich; 8057, Zurich, Switzerland
| | - Stefan Schmutz
- Institute of Medical Virology, University of Zurich; 8057, Zurich, Switzerland
| | - Maryam Zaheri
- Institute of Medical Virology, University of Zurich; 8057, Zurich, Switzerland
| | - Michael Huber
- Institute of Medical Virology, University of Zurich; 8057, Zurich, Switzerland
| | - Alexandra Trkola
- Institute of Medical Virology, University of Zurich; 8057, Zurich, Switzerland
| | - Samuel Cordey
- Laboratory of Virology, Department of Diagnostics, Geneva University Hospitals & Faculty of Medicine; 1205, Geneva, Switzerland
| | - Florian Laubscher
- Laboratory of Virology, Department of Diagnostics, Geneva University Hospitals & Faculty of Medicine; 1205, Geneva, Switzerland
| | - Ana Rita Gonçalves
- Swiss National Reference Centre for Influenza, University Hospitals of Geneva; 1205, Geneva, Switzerland
| | - Sébastien Aeby
- Institute of Microbiology, University Hospital Centre and University of Lausanne; 1011, Lausanne, Switzerland
| | - Trestan Pillonel
- Institute of Microbiology, University Hospital Centre and University of Lausanne; 1011, Lausanne, Switzerland
| | - Damien Jacot
- Institute of Microbiology, University Hospital Centre and University of Lausanne; 1011, Lausanne, Switzerland
| | - Claire Bertelli
- Institute of Microbiology, University Hospital Centre and University of Lausanne; 1011, Lausanne, Switzerland
| | - Gilbert Greub
- Institute of Microbiology, University Hospital Centre and University of Lausanne; 1011, Lausanne, Switzerland
| | - Karoline Leuzinger
- Division of Clinical Virology, University Hospital Basel; 4051, Basel, Switzerland.,Department of Biomedicine, University of Basel; 4031, Basel, Switzerland
| | - Madlen Stange
- SIB Swiss Institute of Bioinformatics; 1015, Lausanne, Switzerland.,Department of Biomedicine, University of Basel; 4031, Basel, Switzerland.,Division of Clinical Bacteriology and Mycology, University Hospital Basel; 4031, Basel, Switzerland
| | - Alfredo Mari
- SIB Swiss Institute of Bioinformatics; 1015, Lausanne, Switzerland.,Department of Biomedicine, University of Basel; 4031, Basel, Switzerland.,Division of Clinical Bacteriology and Mycology, University Hospital Basel; 4031, Basel, Switzerland
| | - Tim Roloff
- SIB Swiss Institute of Bioinformatics; 1015, Lausanne, Switzerland.,Department of Biomedicine, University of Basel; 4031, Basel, Switzerland.,Division of Clinical Bacteriology and Mycology, University Hospital Basel; 4031, Basel, Switzerland
| | - Helena Seth-Smith
- SIB Swiss Institute of Bioinformatics; 1015, Lausanne, Switzerland.,Department of Biomedicine, University of Basel; 4031, Basel, Switzerland.,Division of Clinical Bacteriology and Mycology, University Hospital Basel; 4031, Basel, Switzerland
| | - Hans H. Hirsch
- Division of Clinical Virology, University Hospital Basel; 4051, Basel, Switzerland.,Department of Biomedicine, University of Basel; 4031, Basel, Switzerland
| | - Adrian Egli
- Department of Biomedicine, University of Basel; 4031, Basel, Switzerland.,Division of Clinical Bacteriology and Mycology, University Hospital Basel; 4031, Basel, Switzerland
| | | | | | | | - Louis du Plessis
- Department of Biosystems Science and Engineering, ETH Zurich; 4058, Basel, Switzerland.,SIB Swiss Institute of Bioinformatics; 1015, Lausanne, Switzerland
| | - Niko Beerenwinkel
- Department of Biosystems Science and Engineering, ETH Zurich; 4058, Basel, Switzerland.,SIB Swiss Institute of Bioinformatics; 1015, Lausanne, Switzerland
| | - Richard A. Neher
- SIB Swiss Institute of Bioinformatics; 1015, Lausanne, Switzerland.,Biozentrum, University of Basel; 4056, Basel, Switzerland
| | - Christian Beisel
- Department of Biosystems Science and Engineering, ETH Zurich; 4058, Basel, Switzerland
| | - Tanja Stadler
- Department of Biosystems Science and Engineering, ETH Zurich; 4058, Basel, Switzerland.,SIB Swiss Institute of Bioinformatics; 1015, Lausanne, Switzerland.,Corresponding author. (T.S.); (S.A.N.)
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14
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Pinto AV, Ferreira P, Fernandes PA, Magalhães AL, Ramos MJ. Development of Nanoscale Graphene Oxide Models for the Adsorption of Biological Molecules. J Phys Chem B 2023; 127:557-566. [PMID: 36282235 DOI: 10.1021/acs.jpcb.2c06037] [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: 01/21/2023]
Abstract
Graphene oxide (GO), a nanomaterial with promising applications that range from water purification to enzyme immobilization, is actively present in scientific research since its discovery. GO studies with computational methodologies such as molecular dynamics are frequently reported in the literature; however, the models used often rely on approximations, such as randomly placing functional groups and the use of generalized force fields. Therefore, it is important to develop new MD models that provide a more accurate description of GO structures and their interaction with an aqueous solvent and other adsorbate molecules. In this paper, we derived new force field non-bonded parameters from linear-scaling density functional theory calculations of nanoscale GO sheets with more than 10,000 atoms through an atoms-in-molecules (AIM) partitioning scheme. The resulting GAFF2-AIM force field, derived from the bonded terms of GAFF2 parameterization, reproduces the solvent structure reported in ab initio MD simulations better than the force field nowadays widely used in the literature. Additionally, we analyzed the effect of the ionic strength of the medium and of the C/O ratio on the distribution of charges surrounding the GO sheets. Finally, we simulated the adsorption of natural amino acid molecules to a GO sheet and estimated their free energy of binding, which compared very favorably to their respective experimental values, validating the force field presented in this work.
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Affiliation(s)
- Alexandre V Pinto
- LAQV/Requimte, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, s/n, 4169-007Porto, Portugal
| | - Pedro Ferreira
- LAQV/Requimte, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, s/n, 4169-007Porto, Portugal
| | - Pedro A Fernandes
- LAQV/Requimte, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, s/n, 4169-007Porto, Portugal
| | - Alexandre L Magalhães
- LAQV/Requimte, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, s/n, 4169-007Porto, Portugal
| | - Maria J Ramos
- LAQV/Requimte, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, s/n, 4169-007Porto, Portugal
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15
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Valido R, Caldas F, Ferreira P. Severe Catatonia Following Sudden Withdrawal of Quetiapine. Prim Care Companion CNS Disord 2022; 24. [PMID: 36584363 DOI: 10.4088/pcc.22cr03268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Affiliation(s)
- Rodrigo Valido
- Hospital Magalhães Lemos, Porto, Portugal.,Corresponding author: Rodrigo Valido, MD, Hospital de Magalhães Lemos, Rua Professor Álvaro Rodrigues, 4149-003 Porto, Portugal
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16
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Lemos R, Areias-Marques S, Ferreira P, O’Brien P, Beltrán-Jaunsarás ME, Ribeiro G, Martín M, del Monte-Millán M, López-Tarruella S, Massarrah T, Luís-Ferreira F, Frau G, Venios S, McManus G, Oliveira-Maia AJ. A prospective observational study for a Federated Artificial Intelligence solution for moniToring mental Health status after cancer treatment (FAITH): study protocol. BMC Psychiatry 2022; 22:817. [PMID: 36544126 PMCID: PMC9769034 DOI: 10.1186/s12888-022-04446-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Accepted: 12/03/2022] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Depression is a common condition among cancer patients, across several points in the disease trajectory. Although presenting higher prevalence rates than the general population, it is often not reported or remains unnoticed. Moreover, somatic symptoms of depression are common in the oncological context and should not be dismissed as a general symptom of cancer. It becomes even more challenging to track psychological distress in the period after the treatment, where connection with the healthcare system typically becomes sporadic. The main goal of the FAITH project is to remotely identify and predict depressive symptoms in cancer survivors, based on a federated machine learning (ML) approach, towards optimization of privacy. METHODS FAITH will remotely analyse depression markers, predicting their negative trends. These markers will be treated in distinct categories, namely nutrition, sleep, activity and voice, assessed in part through wearable technologies. The study will include 300 patients who have had a previous diagnosis of breast or lung cancer and will be recruited 1 to 5 years after the end of primary cancer. The study will be organized as a 12-month longitudinal prospective observational cohort study, with monthly assessments to evaluate depression symptoms and quality of life among cancer survivors. The primary endpoint is the severity of depressive symptoms as measured by the Hamilton Depression Rating Scale (Ham-D) at months 3, 6, 9 and 12. Secondary outcomes include self-reported anxiety and depression symptoms (HADS scale), and perceived quality of life (EORTC questionnaires), at baseline and monthly. Based on the predictive models gathered during the study, FAITH will also aim at further developing a conceptual federated learning framework, enabling to build machine learning models for the prediction and monitoring of depression without direct access to user's personal data. DISCUSSION Improvements in the objectivity of psychiatric assessment are necessary. Wearable technologies can provide potential indicators of depression and anxiety and be used for biofeedback. If the FAITH application is effective, it will provide healthcare systems with a novel and innovative method to screen depressive symptoms in oncological settings. TRIAL REGISTRATION Trial ID: ISRCTN10423782 . Date registered: 21/03/2022.
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Affiliation(s)
- Raquel Lemos
- grid.421010.60000 0004 0453 9636Champalimaud Research & Clinical Centre, Champalimaud Foundation, Lisbon, Portugal ,grid.410954.d0000 0001 2237 5901ISPA – Instituto Universitário de Ciências Psicológicas, Sociais E da Vida, Lisbon, Portugal
| | - Sofia Areias-Marques
- grid.421010.60000 0004 0453 9636Champalimaud Research & Clinical Centre, Champalimaud Foundation, Lisbon, Portugal
| | - Pedro Ferreira
- grid.421010.60000 0004 0453 9636Champalimaud Research & Clinical Centre, Champalimaud Foundation, Lisbon, Portugal ,grid.10772.330000000121511713Department of Electrical and Computer Engineering, Faculdade de Ciências E Tecnologia, Universidade Nova de Lisboa, Lisbon, Portugal
| | - Philip O’Brien
- grid.516064.0Waterford Institute of Technology, Waterford, Ireland
| | - María Eugenia Beltrán-Jaunsarás
- grid.5690.a0000 0001 2151 2978LifeSTech, Department of Photonics and Bioengineering, Escuela Técnica Superior de Ingenieros de Telecomunicación, Universidad Politécnica de Madrid, Madrid, Spain
| | - Gabriela Ribeiro
- grid.421010.60000 0004 0453 9636Champalimaud Research & Clinical Centre, Champalimaud Foundation, Lisbon, Portugal ,grid.10772.330000000121511713NOVA Medical School, Faculdade de Ciências Médicas, NMS, FCM, Universidade NOVA de Lisboa, Lisbon, Portugal
| | - Miguel Martín
- grid.4795.f0000 0001 2157 7667Medical Oncology Department, Hospital General Universitario Gregorio Marañón, IiSGM, CIBERONC, Geicam, Universidad Complutense, Madrid, Spain
| | - María del Monte-Millán
- grid.410526.40000 0001 0277 7938Medical Oncology Department, Hospital General Universitario Gregorio Marañón, IiSGM, CIBERONC, Madrid, Spain
| | - Sara López-Tarruella
- grid.4795.f0000 0001 2157 7667Medical Oncology Department, Hospital General Universitario Gregorio Marañón, IiSGM, CIBERONC, Geicam, Universidad Complutense, Madrid, Spain
| | - Tatiana Massarrah
- grid.410526.40000 0001 0277 7938Medical Oncology Department, Hospital General Universitario Gregorio Marañón, IiSGM, CIBERONC, Madrid, Spain
| | - Fernando Luís-Ferreira
- grid.10772.330000000121511713Department of Electrical and Computer Engineering, Faculdade de Ciências E Tecnologia, Universidade Nova de Lisboa, Lisbon, Portugal
| | - Giuseppe Frau
- grid.424043.50000 0004 1805 0444Deep Blue, Rome, Italy
| | - Stefanos Venios
- Suite5 Data Intelligence Solutions Limited, Limassol, Cyprus
| | - Gary McManus
- grid.516064.0Waterford Institute of Technology, Waterford, Ireland
| | - Albino J. Oliveira-Maia
- grid.421010.60000 0004 0453 9636Champalimaud Research & Clinical Centre, Champalimaud Foundation, Lisbon, Portugal ,grid.10772.330000000121511713NOVA Medical School, Faculdade de Ciências Médicas, NMS, FCM, Universidade NOVA de Lisboa, Lisbon, Portugal
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17
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Lederer-Woods C, Aberle O, Andrzejewski J, Audouin L, Bécares V, Bacak M, Balibrea J, Barbagallo M, Barros S, Battino U, Bečvář F, Beinrucker C, Berthoumieux E, Billowes J, Bosnar D, Brugger M, Caamaño M, Calviño F, Calviani M, Cano-Ott D, Cardella R, Casanovas A, Castelluccio DM, Cerutti F, Chen YH, Chiaveri E, Colonna N, Cortés G, Cortés-Giraldo MA, Cosentino L, Damone LA, Diakaki M, Domingo-Pardo C, Dressler R, Dupont E, Durán I, Fernández-Domínguez B, Ferrari A, Ferreira P, Finocchiaro P, Furman V, Göbel K, García AR, Gawlik-Ramięga A, Glodariu T, Gonçalves IF, González-Romero E, Goverdovski A, Griesmayer E, Guerrero C, Gunsing F, Harada H, Heftrich T, Heinitz S, Heyse J, Jenkins DG, Jericha E, Käppeler F, Kadi Y, Katabuchi T, Kavrigin P, Ketlerov V, Khryachkov V, Kimura A, Kivel N, Kokkoris M, Krtička M, Leal-Cidoncha E, Leeb H, Lerendegui-Marco J, Meo SL, Lonsdale SJ, Losito R, Macina D, Marganiec J, Martínez T, Massimi C, Mastinu P, Mastromarco M, Matteucci F, Maugeri EA, Mendoza E, Mengoni A, Milazzo PM, Mingrone F, Mirea M, Montesano S, Musumarra A, Nolte R, Oprea A, Patronis N, Pavlik A, Perkowski J, Porras I, Praena J, Quesada JM, Rajeev K, Rauscher T, Reifarth R, Riego-Perez A, Rout PC, Rubbia C, Ryan JA, Sabaté-Gilarte M, Saxena A, Schillebeeckx P, Schmidt S, Schumann D, Sedyshev P, Smith AG, Stamatopoulos A, Tagliente G, Tain JL, Tarifeño-Saldivia A, Tassan-Got L, Tsinganis A, Valenta S, Vannini G, Variale V, Vaz P, Ventura A, Vlachoudis V, Vlastou R, Wallner A, Warren S, Weigand M, Weiss C, Wolf C, Woods PJ, Wright T, Žugec P. 74 Ge( n , γ ) cross section below 70 keV measured at n_TOF CERN. Eur Phys J A Hadron Nucl 2022; 58:239. [PMID: 36514540 PMCID: PMC9734248 DOI: 10.1140/epja/s10050-022-00878-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Accepted: 10/31/2022] [Indexed: 06/17/2023]
Abstract
Neutron capture reaction cross sections on 74 Ge are of importance to determine 74 Ge production during the astrophysical slow neutron capture process. We present new resonance data on 74 Ge( n , γ ) reactions below 70 keV neutron energy. We calculate Maxwellian averaged cross sections, combining our data below 70 keV with evaluated cross sections at higher neutron energies. Our stellar cross sections are in agreement with a previous activation measurement performed at Forschungszentrum Karlsruhe by Marganiec et al., once their data has been re-normalised to account for an update in the reference cross section used in that experiment.
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Affiliation(s)
- C. Lederer-Woods
- School of Physics and Astronomy, University of Edinburgh, Edinburgh, UK
| | - O. Aberle
- European Organization for Nuclear Research (CERN), Geneva, Switzerland
| | | | - L. Audouin
- Institut de Physique Nucléaire, CNRS-IN2P3, Univ. Paris-Sud, Université Paris-Saclay, 91406 Orsay Cedex, France
| | - V. Bécares
- Centro de Investigaciones Energéticas Medioambientales y Tecnológicas (CIEMAT), Madrid, Spain
| | - M. Bacak
- TU Wien, Atominstitut, Stadionallee 2, 1020 Wien, Austria
| | - J. Balibrea
- Centro de Investigaciones Energéticas Medioambientales y Tecnológicas (CIEMAT), Madrid, Spain
| | - M. Barbagallo
- Istituto Nazionale di Fisica Nucleare, Sezione di Bari, Italy
| | - S. Barros
- Instituto Superior Técnico, Lisbon, Portugal
| | | | - F. Bečvář
- Charles University, Prague, Czech Republic
| | | | - E. Berthoumieux
- CEA Irfu, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
| | | | - D. Bosnar
- Department of Physics, Faculty of Science, University of Zagreb, Zagreb, Croatia
| | - M. Brugger
- European Organization for Nuclear Research (CERN), Geneva, Switzerland
| | - M. Caamaño
- University of Santiago de Compostela, Santiago, Spain
| | - F. Calviño
- Universitat Politècnica de Catalunya, Barcelona, Spain
| | - M. Calviani
- European Organization for Nuclear Research (CERN), Geneva, Switzerland
| | - D. Cano-Ott
- Centro de Investigaciones Energéticas Medioambientales y Tecnológicas (CIEMAT), Madrid, Spain
| | - R. Cardella
- European Organization for Nuclear Research (CERN), Geneva, Switzerland
| | - A. Casanovas
- Universitat Politècnica de Catalunya, Barcelona, Spain
| | - D. M. Castelluccio
- Agenzia nazionale per le nuove tecnologie (ENEA), Bologna, Italy
- Istituto Nazionale di Fisica Nucleare, Sezione di Bologna, Italy
| | - F. Cerutti
- European Organization for Nuclear Research (CERN), Geneva, Switzerland
| | - Y. H. Chen
- Institut de Physique Nucléaire, CNRS-IN2P3, Univ. Paris-Sud, Université Paris-Saclay, 91406 Orsay Cedex, France
| | - E. Chiaveri
- European Organization for Nuclear Research (CERN), Geneva, Switzerland
| | - N. Colonna
- Istituto Nazionale di Fisica Nucleare, Sezione di Bari, Italy
| | - G. Cortés
- Universitat Politècnica de Catalunya, Barcelona, Spain
| | | | - L. Cosentino
- INFN Laboratori Nazionali del Sud, Catania, Italy
| | - L. A. Damone
- Istituto Nazionale di Fisica Nucleare, Sezione di Bari, Italy
- Dipartimento Interateneo di Fisica, Università degli Studi di Bari, Bari, Italy
| | - M. Diakaki
- CEA Irfu, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
| | - C. Domingo-Pardo
- Instituto de Física Corpuscular, CSIC-Universidad de Valencia, Valencia, Spain
| | - R. Dressler
- Paul Scherrer Institut (PSI), Villigen, Switzerland
| | - E. Dupont
- CEA Irfu, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
| | - I. Durán
- University of Santiago de Compostela, Santiago, Spain
| | | | - A. Ferrari
- European Organization for Nuclear Research (CERN), Geneva, Switzerland
| | - P. Ferreira
- Instituto Superior Técnico, Lisbon, Portugal
| | | | - V. Furman
- Joint Institute for Nuclear Research (JINR), Dubna, Russia
| | - K. Göbel
- Goethe University Frankfurt, Frankfurt, Germany
| | - A. R. García
- Centro de Investigaciones Energéticas Medioambientales y Tecnológicas (CIEMAT), Madrid, Spain
| | | | - T. Glodariu
- Horia Hulubei National Institute of Physics and Nuclear Engineering, Magurele, Romania
| | | | - E. González-Romero
- Centro de Investigaciones Energéticas Medioambientales y Tecnológicas (CIEMAT), Madrid, Spain
| | - A. Goverdovski
- Institute of Physics and Power Engineering (IPPE), Obninsk, Russia
| | - E. Griesmayer
- TU Wien, Atominstitut, Stadionallee 2, 1020 Wien, Austria
| | | | - F. Gunsing
- European Organization for Nuclear Research (CERN), Geneva, Switzerland
- CEA Irfu, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
| | - H. Harada
- Japan Atomic Energy Agency (JAEA), Tokai-Mura, Japan
| | - T. Heftrich
- Goethe University Frankfurt, Frankfurt, Germany
| | - S. Heinitz
- Paul Scherrer Institut (PSI), Villigen, Switzerland
| | - J. Heyse
- European Commission, Joint Research Centre (JRC), Geel, Belgium
| | | | - E. Jericha
- TU Wien, Atominstitut, Stadionallee 2, 1020 Wien, Austria
| | - F. Käppeler
- Karlsruhe Institute of Technology, Campus North, IKP, 76021 Karlsruhe, Germany
| | - Y. Kadi
- European Organization for Nuclear Research (CERN), Geneva, Switzerland
| | | | - P. Kavrigin
- TU Wien, Atominstitut, Stadionallee 2, 1020 Wien, Austria
| | - V. Ketlerov
- Institute of Physics and Power Engineering (IPPE), Obninsk, Russia
| | - V. Khryachkov
- Institute of Physics and Power Engineering (IPPE), Obninsk, Russia
| | - A. Kimura
- Japan Atomic Energy Agency (JAEA), Tokai-Mura, Japan
| | - N. Kivel
- Paul Scherrer Institut (PSI), Villigen, Switzerland
| | - M. Kokkoris
- National Technical University of Athens, Athens, Greece
| | - M. Krtička
- Charles University, Prague, Czech Republic
| | | | - H. Leeb
- TU Wien, Atominstitut, Stadionallee 2, 1020 Wien, Austria
| | | | - S. Lo Meo
- Agenzia nazionale per le nuove tecnologie (ENEA), Bologna, Italy
- Istituto Nazionale di Fisica Nucleare, Sezione di Bologna, Italy
| | - S. J. Lonsdale
- School of Physics and Astronomy, University of Edinburgh, Edinburgh, UK
| | - R. Losito
- European Organization for Nuclear Research (CERN), Geneva, Switzerland
| | - D. Macina
- European Organization for Nuclear Research (CERN), Geneva, Switzerland
| | | | - T. Martínez
- Centro de Investigaciones Energéticas Medioambientales y Tecnológicas (CIEMAT), Madrid, Spain
| | - C. Massimi
- Istituto Nazionale di Fisica Nucleare, Sezione di Bologna, Italy
- Dipartimento di Fisica e Astronomia, Università di Bologna, Bologna, Italy
| | - P. Mastinu
- Istituto Nazionale di Fisica Nucleare, Sezione di Legnaro, Italy
| | - M. Mastromarco
- Istituto Nazionale di Fisica Nucleare, Sezione di Bari, Italy
| | - F. Matteucci
- Istituto Nazionale di Fisica Nucleare, Sezione di Trieste, Italy
- Dipartimento di Astronomia, Università di Trieste, Trieste, Italy
| | | | - E. Mendoza
- Centro de Investigaciones Energéticas Medioambientales y Tecnológicas (CIEMAT), Madrid, Spain
| | - A. Mengoni
- Agenzia nazionale per le nuove tecnologie (ENEA), Bologna, Italy
| | - P. M. Milazzo
- Istituto Nazionale di Fisica Nucleare, Sezione di Trieste, Italy
| | - F. Mingrone
- Istituto Nazionale di Fisica Nucleare, Sezione di Bologna, Italy
| | - M. Mirea
- Horia Hulubei National Institute of Physics and Nuclear Engineering, Magurele, Romania
| | - S. Montesano
- European Organization for Nuclear Research (CERN), Geneva, Switzerland
| | - A. Musumarra
- INFN Laboratori Nazionali del Sud, Catania, Italy
- Dipartimento di Fisica e Astronomia, Università di Catania, Catania, Italy
| | - R. Nolte
- Physikalisch-Technische Bundesanstalt (PTB), Bundesallee 100, 38116 Braunschweig, Germany
| | - A. Oprea
- Horia Hulubei National Institute of Physics and Nuclear Engineering, Magurele, Romania
| | | | - A. Pavlik
- Faculty of Physics, University of Vienna, Vienna, Austria
| | | | - I. Porras
- European Organization for Nuclear Research (CERN), Geneva, Switzerland
- University of Granada, Granada, Spain
| | - J. Praena
- University of Granada, Granada, Spain
| | | | - K. Rajeev
- Bhabha Atomic Research Centre (BARC), Mumbai, India
| | - T. Rauscher
- Centre for Astrophysics Research, University of Hertfordshire, Hatfield, UK
- Department of Physics, University of Basel, Basel, Switzerland
| | - R. Reifarth
- Goethe University Frankfurt, Frankfurt, Germany
| | | | - P. C. Rout
- Bhabha Atomic Research Centre (BARC), Mumbai, India
| | - C. Rubbia
- European Organization for Nuclear Research (CERN), Geneva, Switzerland
| | - J. A. Ryan
- University of Manchester, Manchester, UK
| | - M. Sabaté-Gilarte
- European Organization for Nuclear Research (CERN), Geneva, Switzerland
- Universidad de Sevilla, Seville, Spain
| | - A. Saxena
- Bhabha Atomic Research Centre (BARC), Mumbai, India
| | | | - S. Schmidt
- Goethe University Frankfurt, Frankfurt, Germany
| | - D. Schumann
- Paul Scherrer Institut (PSI), Villigen, Switzerland
| | - P. Sedyshev
- Joint Institute for Nuclear Research (JINR), Dubna, Russia
| | | | | | - G. Tagliente
- Istituto Nazionale di Fisica Nucleare, Sezione di Bari, Italy
| | - J. L. Tain
- Instituto de Física Corpuscular, CSIC-Universidad de Valencia, Valencia, Spain
| | | | - L. Tassan-Got
- Institut de Physique Nucléaire, CNRS-IN2P3, Univ. Paris-Sud, Université Paris-Saclay, 91406 Orsay Cedex, France
| | - A. Tsinganis
- National Technical University of Athens, Athens, Greece
| | - S. Valenta
- Charles University, Prague, Czech Republic
| | - G. Vannini
- Istituto Nazionale di Fisica Nucleare, Sezione di Bologna, Italy
- Dipartimento di Fisica e Astronomia, Università di Bologna, Bologna, Italy
| | - V. Variale
- Istituto Nazionale di Fisica Nucleare, Sezione di Bari, Italy
| | - P. Vaz
- Instituto Superior Técnico, Lisbon, Portugal
| | - A. Ventura
- Istituto Nazionale di Fisica Nucleare, Sezione di Bologna, Italy
| | - V. Vlachoudis
- European Organization for Nuclear Research (CERN), Geneva, Switzerland
| | - R. Vlastou
- National Technical University of Athens, Athens, Greece
| | - A. Wallner
- Australian National University, Canberra, Australia
| | - S. Warren
- University of Manchester, Manchester, UK
| | - M. Weigand
- Goethe University Frankfurt, Frankfurt, Germany
| | - C. Weiss
- European Organization for Nuclear Research (CERN), Geneva, Switzerland
- TU Wien, Atominstitut, Stadionallee 2, 1020 Wien, Austria
| | - C. Wolf
- Goethe University Frankfurt, Frankfurt, Germany
| | - P. J. Woods
- School of Physics and Astronomy, University of Edinburgh, Edinburgh, UK
| | - T. Wright
- University of Manchester, Manchester, UK
| | - P. Žugec
- European Organization for Nuclear Research (CERN), Geneva, Switzerland
- Department of Physics, Faculty of Science, University of Zagreb, Zagreb, Croatia
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18
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Mariz M, Murta J, Gil MH, Ferreira P. An ocular insert with zero-order extended delivery: Release kinetics and mathematical models. Eur J Pharm Biopharm 2022; 181:79-87. [PMID: 36351492 DOI: 10.1016/j.ejpb.2022.10.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 10/28/2022] [Accepted: 10/31/2022] [Indexed: 11/08/2022]
Abstract
Ocular inserts (InEye®), were prepared based on two distinct formulations of PCL-PEG-PCL block copolymers - one with 33 % and the other with 24 % of PEG 600. Ring-open-polymerisation was used to link ε-caprolactone monomers to PEG hydroxyl end-groups. Molecular weight, PCL/PEG ratio, mass loss and swelling of different polymeric samples where determined. Based on the previously prepared block copolymers, ophthalmic inserts were assembled. These were prepared with an ellipsoidal shape by dripping melted polymer over a micro-tablet of moxifloxacin, used as drug model for this study, which therefore became entrapped in a central core coated with a polymer layer that functioned as a control-release barrier. The release kinetics of the model drug revealed a strong dependence on the PEG percentage on the polymer. Inserts' size and the amount of drug immobilized also had an important effect on the drug release profile. All release profiles followed a zero-order pattern, with 95 % of the drug being release at a constant rate. With drug releases varying from 20 to 200 days, and no initial burst, InEye® performance is unique among drug delivery systems and seems to be a very promising new formulation technology for preparing tailor-made ophthalmic inserts for prolonged and constant release of drug, which is needed for chronic diseases such as glaucoma, where compliance to treatment is essential for preventing optic-nerve lesions.
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Affiliation(s)
- M Mariz
- University of Coimbra, Chemical Engineering Department, CIEPQPF, 3030-790 Coimbra, Portugal.
| | - J Murta
- Department of Ophthalmology, Coimbra University Hospital Centre (CHUC), Praceta Professor Mota Pinto, 3004-561, Portugal
| | - M H Gil
- University of Coimbra, Chemical Engineering Department, CIEPQPF, 3030-790 Coimbra, Portugal
| | - P Ferreira
- University of Coimbra, Chemical Engineering Department, CIEPQPF, 3030-790 Coimbra, Portugal; Polytechnic Institute of Coimbra, ISEC, DEQB, Rua Pedro Nunes, Quinta da Nora, Coimbra 3030-199, Portugal.
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Roberts KE, Beckenkamp PR, Ferreira ML, Duncan GE, Calais-Ferreira L, Gatt JM, Ferreira P. Positive lifestyle behaviours and emotional health factors are associated with low back pain resilience. Eur Spine J 2022; 31:3616-3626. [PMID: 36208321 DOI: 10.1007/s00586-022-07404-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Revised: 08/18/2022] [Accepted: 09/23/2022] [Indexed: 11/07/2022]
Abstract
PURPOSE To evaluate the relationship between lifestyle behaviours, emotional health factors, and low back pain (LBP) resilience. METHODS This retrospective longitudinal study utilised 1,065 twins with a recent history of LBP from the Washington State Twin Registry. A lifestyle behaviour score was built using variables of body mass index, physical activity engagement, sleep quality, smoking status, and alcohol consumption. An emotional health score was built using variables of the absence of depressed mood, perceived stress, and active coping. The main outcome was LBP resilience, assessed as recovery ("bouncing back"), and sustainability (maintaining high levels of function despite LBP). RESULTS After adjusting for covariates, there was no relationship between the lifestyle behaviour score (OR 1.05, 95% CI 0.97-1.15, p = 0.218) and the emotional health score (OR 1.08, 95% CI 0.98-1.19, p = 0.142) with the likelihood of recovering from LBP. There was however, evidence of a positive association between the lifestyle behaviour score (β 0.20, 95% CI 0.04-0.36, p = 0.013), the emotional health score (β 0.22, 95% CI 0.00-0.43, p = 0.049), and greater levels of sustainability. These results were confirmed by a within-pair analysis (lifestyle behaviour score: β 1.79, 95% CI 0.05-3.53, p = 0.043) and (emotional health score: β 0.52, 95% CI 0.09-0.96, p = 0.021) adjusting for genetic and early shared environmental confounding. CONCLUSION Findings from this study suggest that people who adopt optimal lifestyle behaviours and positive emotional factors are more likely to be resilient and maintain high levels of function despite suffering from LBP.
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Affiliation(s)
- K E Roberts
- Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, 2006, Australia.
| | - P R Beckenkamp
- School of Health Sciences, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
| | - M L Ferreira
- Sydney Musculoskeletal Health, Kolling Institute, School of Health Sciences, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
| | - G E Duncan
- Washington State Twin Registry, Elson S Floyd College of Medicine, Washington State University Health Sciences Spokane, Spokane, USA
| | - L Calais-Ferreira
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Melbourne, VIC, Australia
| | - J M Gatt
- Neuroscience Research Australia and the School of Psychology, The University of New South Wales, Sydney, NSW, Australia
| | - P Ferreira
- School of Health Sciences, Charles Perkins Centre, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
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Cardoso MC, Raposo MI, Gaio-Lima C, Ferreira P, Cosme P. Primary spontaneous pneumothorax during pregnancy: A case report and review of the literature. Rev Esp Anestesiol Reanim (Engl Ed) 2022; 69:506-509. [PMID: 36085144 DOI: 10.1016/j.redare.2021.03.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2020] [Accepted: 03/01/2021] [Indexed: 06/15/2023]
Abstract
Spontaneous pneumothorax in pregnancy is an extremely rare cause of dyspnea with less than 100 cases reported in the literature. A 28-year-old primigravida at 39+4 weeks of gestation presented to the emergency department with sudden onset of dyspnea and pleuritic chest pain. A chest radiograph revealed a large, left-sided pneumothorax with a collapsed lung. A chest tube was placed with incomplete re-expansion of the lung. A cesarean section under epidural anesthesia was performed for suspected macrosomia. The postpartum was uneventful. Despite its rarity, spontaneous pneumothorax should be excluded in every pregnant woman presenting with sudden onset of dyspnea and chest pain. A heightened index of suspicion is essential for prompt management of this condition, avoiding adverse fetal and maternal outcomes. For a correct diagnosis and management, more solid recommendations and a multidisciplinary approach are needed.
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Affiliation(s)
- M C Cardoso
- Department of Obstetrics and Gynecology, Hospital do Divino Espírito Santo de Ponta Delgada, Azores, Portugal.
| | - M I Raposo
- Department of Obstetrics and Gynecology, Hospital do Divino Espírito Santo de Ponta Delgada, Azores, Portugal
| | - C Gaio-Lima
- Anesthesiology Department, Hospital Pedro Hispano, Matosinhos, Portugal
| | - P Ferreira
- Department of Anesthesiology, Hospital do Divino Espírito Santo de Ponta Delgada, Azores, Portugal
| | - P Cosme
- Department of Obstetrics and Gynecology, Hospital do Divino Espírito Santo de Ponta Delgada, Azores, Portugal
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Metello J, Tomas C, Ferreira P, Santos-Ribeiro S. The Addition of Dydrogesterone after Frozen Embryo Transfer in Hormonal Substituted Cycles with Low Progesterone Levels. Rev Bras Ginecol Obstet 2022; 44:930-937. [PMID: 36446559 PMCID: PMC9708401 DOI: 10.1055/s-0042-1751058] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 04/18/2022] [Indexed: 12/03/2022] Open
Abstract
OBJECTIVE To determine whether a rescue strategy using dydrogesterone (DYD) could improve the outcomes of frozen embryo transfer cycles (FET) with low progesterone (P4) levels on the day of a blastocyst transfer. METHODS Retrospective cohort study including FET cycles performed between July 2019 and October 2020 following an artificial endometrial preparation cycle using estradiol valerate and micronized vaginal P4 (400 mg twice daily). Whenever the serum P4 value was below 10 ng/mL on the morning of the planned transfer, DYD 10 mg three times a day was added as supplementation. The primary endpoint was ongoing pregnancy beyond 10 weeks. The sample was subdivided into two groups according to serum P4 on the day of FET: low (< 10 ng/mL, with DYD supplementation) or normal (above 10 ng/mL). We performed linear or logistic generalized estimating equations (GEE), as appropriate. RESULTS We analyzed 304 FET cycles from 241 couples, 11.8% (n = 36) of which had serum P4 below 10 ng/mL on the FET day. Baseline clinical data of patients was comparable between the study groups.Overall, 191 cycles (62.8%) had a biochemical pregnancy, of which 131 (44,1%) were ongoing pregnancies, with a 29,8% miscarriage rate. We found no statistically significant differences in the hCG positive (63 vs 64%) or ongoing pregnancy rates (50 vs 43,3%) between those FETs with low or normal serum P4 values, even after multivariable logistic regression modelling. CONCLUSION Our results indicate that DYD 10 mg three times a day administered in women who perform FET with P4 serum levels < 10 ng/mL, allows this group to have pregnancy rates beyond 12 weeks at least as good as those with serum levels above 10 ng/mL.
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Affiliation(s)
- Jose Metello
- Hospital Garcia de Orta, Cirma, Almada, Portugal.
- Ginemed, Ginemed-Lisboa, Lisboa, Portugal.
| | | | - Pedro Ferreira
- Hospital Garcia de Orta, Cirma, Almada, Portugal.
- Ginemed, Ginemed-Lisboa, Lisboa, Portugal.
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22
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Matta Coelho C, Guimarães J, Bracchi I, Xavier Moreira N, Pinheiro C, Ferreira P, Pestana D, Barreiros Mota I, Cortez A, Prucha C, Martins C, Pinto E, Almeida A, Delerue-Matos C, Dias CC, Moreira-Rosário A, Ribeiro de Azevedo LF, Cruz Fernandes V, Ramalho C, Calhau C, Brantsæter AL, Costa Leite J, Keating E. Noncompliance to iodine supplementation recommendation is a risk factor for iodine insufficiency in Portuguese pregnant women: results from the IoMum cohort. J Endocrinol Invest 2022; 45:1865-1874. [PMID: 35635644 DOI: 10.1007/s40618-022-01813-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 04/27/2022] [Indexed: 10/18/2022]
Abstract
PURPOSE After a recommendation for iodine supplementation in pregnancy has been issued in 2013 in Portugal, there were no studies covering iodine status in pregnancy in the country. The aim of this study was to assess iodine status in pregnant women in Porto region and its association with iodine supplementation. METHODS A cross-sectional study was conducted at Centro Hospitalar Universitário São João, Porto, from April 2018 to April 2019. Pregnant women attending the 1st trimester ultrasound scan were invited to participate. Exclusion criteria were levothyroxine use, gestational age < 10 and ≥ 14 weeks, non-evolutive pregnancy at recruitment and non-signing of informed consent. Urinary iodine concentration (UIC) was measured in random spot urine by inductively coupled plasma-mass spectrometry. RESULTS Median UIC was 104 μg/L (IQR 62-189) in the overall population (n = 481) of which 19% had UIC < 50 µg/L. Forty three percent (n = 206) were not taking an iodine-containing supplement (ICS) and median UIC values were 146 µg/L (IQR 81-260) and 74 µg/L (IQR 42-113) in ICS users and non-users, respectively (p < 0.001). Not using an ICS was an independent risk factor for iodine insufficiency [adjusted OR (95% CI) = 6.00 (2.74, 13.16); p < 0.001]. Iodised salt use was associated with increased median iodine-to-creatinine ratio (p < 0.014). CONCLUSIONS A low compliance to iodine supplementation recommendation in pregnancy accounted for a mild-to-moderately iodine deficiency. Our results evidence the need to support iodine supplementation among pregnant women in countries with low household coverage of iodised salt. Trial registration number NCT04010708, registered on the 8th July 2019.
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Affiliation(s)
- C Matta Coelho
- CINTESIS@RISE, Department Biomedicine, Unit of Biochemistry, Faculty of Medicine, University of Porto, 4200-319, Porto, Portugal
| | - J Guimarães
- CINTESIS@RISE, Department Biomedicine, Unit of Biochemistry, Faculty of Medicine, University of Porto, 4200-319, Porto, Portugal
| | - I Bracchi
- CINTESIS@RISE, Department Biomedicine, Unit of Biochemistry, Faculty of Medicine, University of Porto, 4200-319, Porto, Portugal
| | - N Xavier Moreira
- CINTESIS@RISE, Faculty of Medicine, University of Porto, Porto, Portugal
- Fluminense Federal University, Niterói, Rio de Janeiro, Brasil
| | - C Pinheiro
- CINTESIS@RISE, Department Biomedicine, Unit of Biochemistry, Faculty of Medicine, University of Porto, 4200-319, Porto, Portugal
| | - P Ferreira
- Faculdade de Ciências da Nutrição e Alimentação, Universidade do Porto, Porto, Portugal
| | - D Pestana
- CINTESIS@RISE, Nutrition and Metabolism, NOVA Medical School│FCM, Universidade Nova de Lisboa, Porto, Portugal
| | - I Barreiros Mota
- CINTESIS@RISE, Nutrition and Metabolism, NOVA Medical School│FCM, Universidade Nova de Lisboa, Porto, Portugal
| | - A Cortez
- Medicina Laboratorial Dr. Carlos Torres, Porto, Portugal
| | - C Prucha
- Department of Obstetrics, Centro Hospitalar Universitário S. João, Porto, Portugal
| | - C Martins
- Department of Obstetrics, Centro Hospitalar Universitário S. João, Porto, Portugal
| | - E Pinto
- REQUIMTE//LAQV, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal
- Department of Environmental Health, School of Health, P.Porto, Porto, Portugal
| | - A Almeida
- REQUIMTE//LAQV, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal
| | - C Delerue-Matos
- REQUIMTE/LAQV, Instituto Superior de Engenharia, Politécnico do Porto, Porto, Portugal
| | - C C Dias
- CINTESIS@RISE, Department of Community Medicine, Information and Health Decision Sciences (MEDCIDS), Faculty of Medicine, University of Porto, Porto, Portugal
| | - A Moreira-Rosário
- CINTESIS@RISE, Nutrition and Metabolism, NOVA Medical School│FCM, Universidade Nova de Lisboa, Porto, Portugal
| | - L F Ribeiro de Azevedo
- CINTESIS@RISE, Department of Community Medicine, Information and Health Decision Sciences (MEDCIDS), Faculty of Medicine, University of Porto, Porto, Portugal
| | - V Cruz Fernandes
- REQUIMTE/LAQV, Instituto Superior de Engenharia, Politécnico do Porto, Porto, Portugal
| | - C Ramalho
- Department of Obstetrics, Centro Hospitalar Universitário S. João, Porto, Portugal
- Department of Ginecology-Obstetrics and Pediatrics, Faculty of Medicine, University of Porto, Porto, Portugal
- Instituto de Investigação e Inovação em Saúde, i3S, Universidade Do Porto, Porto, Portugal
| | - C Calhau
- CINTESIS@RISE, Nutrition and Metabolism, NOVA Medical School│FCM, Universidade Nova de Lisboa, Porto, Portugal
| | - A-L Brantsæter
- Division of Climate and Environmental Health, Norwegian Institute of Public Health, Oslo, Norway
| | - J Costa Leite
- CINTESIS@RISE, Faculty of Medicine, University of Porto, Porto, Portugal
| | - E Keating
- CINTESIS@RISE, Department Biomedicine, Unit of Biochemistry, Faculty of Medicine, University of Porto, 4200-319, Porto, Portugal.
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Abdo L, Barros L, Viegas M, Marques L, Ferreira P, Aragão E, Hadju K, Ribeiro L, Chicaybam L, Bonamino M. IMPROVEMENT CAR-T CELL THERAPY WITH ULTRA-FAST PROTOCOL AND IL-15 MEMBRANE BOUND ADDITION. Cytotherapy 2022. [DOI: 10.1016/s1465-3249(22)00844-1] [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: 11/03/2022]
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24
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Trovisco R, Freitas C, Serino M, Ferreira P, Martins B, Coelho D, Melo N, Fernandes G, Magalhães A, Bastos HN. Predictors of lung entrapment in malignant pleural effusion. Pulmonology 2022:S2531-0437(22)00199-4. [PMID: 36180353 DOI: 10.1016/j.pulmoe.2022.08.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 07/25/2022] [Accepted: 08/03/2022] [Indexed: 11/23/2022] Open
Abstract
INTRODUCTION Malignant pleural effusion (MPE) is a common complication in advanced stages of malignancy and is associated with poor prognosis. Non-expandable lung (NEL) often occurs and its presence influences the MPE approach. Our main objective was to assess risk factors for malignant NEL. METHODS Patients diagnosed with pathologically confirmed MPE between January 2012 and December 2018 in our institution were retrospectively analyzed. Demographic and clinical data of patients were reviewed and compared according to the presence or absence of NEL. A univariate and multivariate binary logistic regression analysis were used to determine predictors of the development of NEL. RESULTS Of 365 patients included, 68 (18.6%) had NEL. After multivariate analysis, we found that loculated MPE (OR 8.63, 95%CI 4.30-17.33, p<0.001), complete hemithorax opacification (OR 2.81, 95%CI 1.17-6.76, p<0.021), lung cancer (OR 2.09, 95%CI 1.01-4.31, p=0.047) and higher effusion-serum LDH ratio (OR 1.09, 95%CI 1.00-1.17, p=0.039) were independent predictors of malignant NEL. There were no significant differences compared with expandable lung group regarding time from primary malignancy diagnosis to MPE diagnosis (3.0, IQR 0.0-75.8 vs 2.0, IQR 0.0-75.5 weeks, p=0.942) or MPE symptoms onset to MPE diagnosis (4.0, IQR 1.0-9.0 vs 3.0, IQR 1.0-9.0 weeks, p=0.497). Patients with NEL had a higher number of therapeutic pleural drainages (3.0, IQR 2.0-6.0 vs 2.0, IQR 1.0-3.0; p<0.001) and longer hospital stay (32.5, IQR 15.5-46.3 vs 21.0, IQR 11.0-36.0, p=0.007), measured in hospitalization days until the end of life, than patients with expandable lung. The rate of recurrence of pleural effusion was not significantly different between groups (p=0.291). Overall survival (OS) was 3.0 (95%CI, 2.3-3.7) months, regardless of lung expandability (p=0.923). CONCLUSION Loculated MPE, complete hemithorax opacification, lung cancer and a higher effusion-serum LDH ratio were found to be independent predictors for NEL. These patients underwent thoracocenteses more frequently and had longer hospitalization days, although without significant impact in the OS.
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Affiliation(s)
- R Trovisco
- Faculty of Medicine, University of Porto, Alameda Prof. Hernani Monteiro, 4200-319 Porto, Portugal
| | - C Freitas
- Faculty of Medicine, University of Porto, Alameda Prof. Hernani Monteiro, 4200-319 Porto, Portugal; Department of Pulmonology, Centro Hospitalar e Universitário São João, Porto, Portugal
| | - M Serino
- Department of Pulmonology, Centro Hospitalar e Universitário São João, Porto, Portugal
| | - P Ferreira
- Department of Pulmonology, Centro Hospitalar e Universitário São João, Porto, Portugal
| | - B Martins
- Department of Pulmonology, Centro Hospitalar e Universitário São João, Porto, Portugal
| | - D Coelho
- Faculty of Medicine, University of Porto, Alameda Prof. Hernani Monteiro, 4200-319 Porto, Portugal; Department of Pulmonology, Centro Hospitalar e Universitário São João, Porto, Portugal
| | - N Melo
- Department of Pulmonology, Centro Hospitalar e Universitário São João, Porto, Portugal
| | - G Fernandes
- Faculty of Medicine, University of Porto, Alameda Prof. Hernani Monteiro, 4200-319 Porto, Portugal; Department of Pulmonology, Centro Hospitalar e Universitário São João, Porto, Portugal
| | - A Magalhães
- Department of Pulmonology, Centro Hospitalar e Universitário São João, Porto, Portugal
| | - H N Bastos
- Faculty of Medicine, University of Porto, Alameda Prof. Hernani Monteiro, 4200-319 Porto, Portugal; Department of Pulmonology, Centro Hospitalar e Universitário São João, Porto, Portugal; Institute for Research and Innovation in Health, University of Porto, Rua Alfredo Allen, 208, 4200-136 Porto, Portugal.
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Mesquita A, Ferreira P, Carvalho M, Martins M. Acute stroke presenting as syncope: Wallenberg syndrome. BMJ Case Rep 2022; 15:15/7/e251203. [DOI: 10.1136/bcr-2022-251203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Abreu B, Almeida B, Ferreira P, M. F. Fernandes R, Fernandes DM, Marques EF. A critical assessment of the role of ionic surfactants in the exfoliation and stabilization of 2D nanosheets: the case of the transition metal dichalcogenides MoS2, WS2 and MoSe2. J Colloid Interface Sci 2022; 626:167-177. [DOI: 10.1016/j.jcis.2022.06.097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 06/13/2022] [Accepted: 06/21/2022] [Indexed: 10/31/2022]
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Zaffar E, Ferreira P, Sanchez-Pulido L, Boos D. The Role of MTBP as a Replication Origin Firing Factor. Biology (Basel) 2022; 11:biology11060827. [PMID: 35741348 PMCID: PMC9219753 DOI: 10.3390/biology11060827] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 05/20/2022] [Accepted: 05/22/2022] [Indexed: 12/12/2022]
Abstract
The initiation step of replication at replication origins determines when and where in the genome replication machines, replisomes, are generated. Tight control of replication initiation helps facilitate the two main tasks of genome replication, to duplicate the genome accurately and exactly once each cell division cycle. The regulation of replication initiation must ensure that initiation occurs during the S phase specifically, that no origin fires more than once per cell cycle, that enough origins fire to avoid non-replicated gaps, and that the right origins fire at the right time but only in favorable circumstances. Despite its importance for genetic homeostasis only the main molecular processes of eukaryotic replication initiation and its cellular regulation are understood. The MTBP protein (Mdm2-binding protein) is so far the last core replication initiation factor identified in metazoan cells. MTBP is the orthologue of yeast Sld7. It is essential for origin firing, the maturation of pre-replicative complexes (pre-RCs) into replisomes, and is emerging as a regulation focus targeted by kinases and by regulated degradation. We present recent insight into the structure and cellular function of the MTBP protein in light of recent structural and biochemical studies revealing critical molecular details of the eukaryotic origin firing reaction. How the roles of MTBP in replication and other cellular processes are mutually connected and are related to MTBP's contribution to tumorigenesis remains largely unclear.
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Affiliation(s)
- Eman Zaffar
- Molecular Genetics II, Centre for Medical Biotechnology, University of Duisburg-Essen, 45141 Essen, Germany; (E.Z.); (P.F.)
| | - Pedro Ferreira
- Molecular Genetics II, Centre for Medical Biotechnology, University of Duisburg-Essen, 45141 Essen, Germany; (E.Z.); (P.F.)
| | - Luis Sanchez-Pulido
- Medical Research Council Human Genetics Unit, IGC, University of Edinburgh, Edinburgh EH9 3JR, UK;
| | - Dominik Boos
- Molecular Genetics II, Centre for Medical Biotechnology, University of Duisburg-Essen, 45141 Essen, Germany; (E.Z.); (P.F.)
- Correspondence: ; Tel.: +49-201-183-4132
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Mesquita A, Grazina A, Ferreira P, Lobão M. In defence of aVR: an NSTEMI that needed emergent reperfusion. BMJ Case Rep 2022; 15:15/5/e250387. [PMID: 35609936 DOI: 10.1136/bcr-2022-250387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Affiliation(s)
- António Mesquita
- Serviço de Medicina 2.3, Hospital Santo António dos Capuchos, Lisboa, Portugal
| | - André Grazina
- Serviço de Cardiologia, Hospital of Santa Marta, Lisboa, Portugal
| | - Pedro Ferreira
- Serviço de Medicina 2.3, Hospital Santo António dos Capuchos, Lisboa, Portugal
| | - Madalena Lobão
- Serviço de Medicina 2.3, Hospital Santo António dos Capuchos, Lisboa, Portugal
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Serino M, Freitas C, Martins M, Ferreira P, Cardoso C, Veiga F, Santos V, Araújo D, Novais-Bastos H, Magalhães A, Queiroga H, Fernandes G, Hespanhol V. Predictors of immune-related adverse events and outcomes in patients with NSCLC treated with immune-checkpoint inhibitors. Pulmonology 2022:S2531-0437(22)00076-9. [PMID: 35414494 DOI: 10.1016/j.pulmoe.2022.03.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Revised: 03/14/2022] [Accepted: 03/14/2022] [Indexed: 10/18/2022] Open
Abstract
OBJECTIVE To identify predictors of immune-related adverse events (IRAEs) in patients with non-small cell lung cancer (NSCLC) treated with immune checkpoint inhibitors (ICIs). Assess associations between outcomes and the development of IRAEs. METHODS Retrospective analysis of patients with NSCLC treated with ICIs between 2016 and 2020 in the Pulmonology Department of our hospital. Patients with and without IRAEs were compared. A logistic regression analysis was performed to determine predictors of IRAEs. Progression-free survival (PFS) and overall survival (OS) curves were calculated using the Kaplan-Meier method, and the long-rank test was used to assess survival differences between groups. Univariate and multivariate Cox proportional-hazards regression models were used to identify factors associated with PFS and OS. The value considered statistically significant was p≤0.05. RESULTS A total of 184 patients (77.7% men, mean age 66.9±9.5 years) treated with ICIs were analyzed. During follow-up, 49 (26.6%) patients developed IRAEs and 149 (81.0%) died. According to the multivariate logistic regression analysis, treatment with statins (OR:3.15; p = 0.007), previous systemic corticosteroid therapy (OR:3.99; p = 0.001), disease controlled as response to ICI (OR:5.93; p < 0.001) and higher hemoglobin values (OR:1.28; p = 0.040) were independent predictors for the development of IRAEs. Patients who developed IRAEs had significantly longer medians of PFS (41.0 vs 9.0 weeks, p < 0.001) and OS (89.0 vs 28.0 weeks; p < 0.001). CONCLUSIONS Patients treated with statins, pre-ICI systemic corticosteroids, higher baseline hemoglobin value and controlled disease as initial response to ICI had a higher risk of developing IRAEs. The development of IRAEs was associated with better outcomes.
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Affiliation(s)
- M Serino
- Pulmonology Department, Centro Hospitalar Universitário São João, Porto, Portugal.
| | - C Freitas
- Pulmonology Department, Centro Hospitalar Universitário São João; Faculty of Medicine, University of Porto, Porto, Portugal
| | - M Martins
- Pulmonology Department, Centro Hospitalar Universitário São João, Porto, Portugal
| | - P Ferreira
- Pulmonology Department, Centro Hospitalar Universitário São João, Porto, Portugal
| | - C Cardoso
- Pulmonology Department, Centro Hospitalar Universitário São João, Porto, Portugal
| | - F Veiga
- Faculty of Medicine, University of Porto, Porto, Portugal
| | - V Santos
- Pulmonology Department, Centro Hospitalar Universitário São João, Porto, Portugal
| | - D Araújo
- Pulmonology Department, Centro Hospitalar Universitário São João, Porto, Portugal
| | - H Novais-Bastos
- Pulmonology Department, Centro Hospitalar Universitário São João; Faculty of Medicine, University of Porto, Porto, Portugal
| | - A Magalhães
- Pulmonology Department, Centro Hospitalar Universitário São João, Porto, Portugal
| | - H Queiroga
- Pulmonology Department, Centro Hospitalar Universitário São João; Faculty of Medicine, University of Porto, Porto, Portugal
| | - G Fernandes
- Pulmonology Department, Centro Hospitalar Universitário São João; Faculty of Medicine, University of Porto, Porto, Portugal
| | - V Hespanhol
- Pulmonology Department, Centro Hospitalar Universitário São João; Faculty of Medicine, University of Porto, Porto, Portugal
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Henriksen L, Kjær KM, Blønd M, Cohn M, Cakici B, Douglas‐Jones R, Ferreira P, Feshak V, Gahoonia SK, Sandbukt S. Writing bodies and bodies of text: Thinking vulnerability through monsters. Gender Work & Organization 2022. [DOI: 10.1111/gwao.12782] [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: 11/26/2022]
Affiliation(s)
| | | | | | - Marisa Cohn
- IT University of Copenhagen Copenhagen Denmark
| | - Baki Cakici
- IT University of Copenhagen Copenhagen Denmark
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Ferreira P, Carneiro C, Monteiro I, Rodrigues C, Teles T. 468 A Urethral prolapse in a postmenopausal woman. Eur J Obstet Gynecol Reprod Biol 2022. [DOI: 10.1016/j.ejogrb.2021.11.096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Ferreira P, Fernandes P, Ramos M. The archaeal non-heme iron-containing Sulfur Oxygenase Reductase. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2021.214358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Khaleeq T, Lancaster P, Fakoya K, Ferreira P, Ahmed U. 17 Establishment of Virtual Fracture Clinic in Princess Royal Hospital Telford: Experience and Recommendations During the First 9 Months. Br J Surg 2022. [PMCID: PMC9383520 DOI: 10.1093/bjs/znac040.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Introduction Virtual fracture clinics (VFC) have been shown to be a safe and cost-effective way of managing outpatient referrals to the orthopaedic department. During the coronavirus pandemic there has been a push to reduce unnecessary patient contact whilst maintaining patient safety. Method A protocol was developed by the clinical team on how to manage common musculoskeletal presentations to A&E prior to COVID as part of routine service development. Patients broadly triaged into 4 categories; discharge with advice, referral to VFC, referral to face to face clinic or discussion with on call team. The first 9 months of data were analysed to assess types of injury seen and outcomes. Results In total 2489 patients were referred to VFC from internal and external sources. 734 patients were discharged without follow-up and 182 patients were discharged for physiotherapy review. Only 3 patients required admission. Regarding follow-ups, 431 patients had a virtual follow-up while 1036 of patients required further face to face follow up. 87 patients were triaged into subspecialty clinics. 37 patients were felt to have been referred inappropriately. Conclusions BOA guidelines state all patients must be reviewed within 72 hours of their orthopaedic injury. Implementation of a VFC allows this target to be achieved and at the same time reduce patient contact. Almost half the patients were discharged following VFC review, the remaining patients were followed up. This is especially relevant in the current pandemic where reducing unnecessary trips to hospital will benefit the patient and make the most of the resources available.
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Affiliation(s)
- T. Khaleeq
- Princess Royal Hospital, Telford, United Kingdom
| | - P. Lancaster
- Princess Royal Hospital, Telford, United Kingdom
| | - K. Fakoya
- Princess Royal Hospital, Telford, United Kingdom
| | - P. Ferreira
- Princess Royal Hospital, Telford, United Kingdom
| | - U. Ahmed
- Princess Royal Hospital, Telford, United Kingdom
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Belo R, Ferreira P. Free-Riding in Products with Positive Network Externalities: Empirical Evidence from a Large Mobile Network. MIS QUART 2022. [DOI: 10.25300/misq/2022/14712] [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] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
We study the effect of peer influence on products that exhibit positive network externalities to non-adopters, i.e., products that benefit adopters’ friends even if they do not adopt. In contrast to products that exhibit positive network externalities upon adoption, this structure of incentives likely results in negative peer influence: the more friends that adopt the product, the smaller the incentive to adopt. We measure this effect empirically by using observational data from a large mobile carrier serving 5.7 million users. We estimate the effect of peer influence across five different products of this type. A naive approach to do this results in a positive estimate for peer influence due to unobserved homophily. We follow two approaches to address this issue. First, we suggest using the number of friends that end up adopting a product as a proxy for unobserved user-fixed effects. Second, we control for homophily by applying a shuffle test, i.e., we compare the effect of peer influence from the original data with the effect obtained from comparable randomly generated data without peer influence. We obtain negative estimates from both approaches, which adds robustness to our findings. Finally, we show that even for these products, the effect of peer influence associated with the first friends that adopt the product is positive because they still convey useful information that reduces uncertainty. The negative effect of peer influence arises only for subsequent friends that adopt the product. While these friends are unlikely to convey new information about the product, they decrease the economic incentive to adopt, resulting in a negative aggregate effect of peer influence.
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Rosa ML, Roque A, Ferreira P. Closed-Loop Obstruction Caused by Double Intussusception in an Adult. Gaz Med 2022. [DOI: 10.29315/gm.v1i1.500] [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] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
A 73-year-old male presented to the emergency department with diffuse abdominal pain. Physical and analytical evaluation revealed abdominal distension, meteorism and elevated C-reactive protein. Contrast-enhanced computed tomography (CECT) was performed revealing dilated bowel-loops with air fluid levels found in between two points of transition: proximally,a jejunum-jejunal intussusception adjacent to a jejunal lipoma; distally, an ileo-ileal intussusception with enlarged lymph nodes in its mesenteric fold. [...]
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Ferreira P, Kwan GT, Haldorson S, Rummer JL, Tashiro F, Castro LFC, Tresguerres M, Wilson JM. A multi-tasking stomach: functional coexistence of acid-peptic digestion and defensive body inflation in three distantly related vertebrate lineages. Biol Lett 2022; 18:20210583. [PMID: 35104429 PMCID: PMC8807057 DOI: 10.1098/rsbl.2021.0583] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Puffer and porcupine fishes (families Diodontidae and Tetraodontidae, order Tetradontiformes) are known for their extraordinary ability to triple their body size by swallowing and retaining large amounts of seawater in their accommodating stomachs. This inflation mechanism provides a defence to predation; however, it is associated with the secondary loss of the stomach's digestive function. Ingestion of alkaline seawater during inflation would make acidification inefficient (a potential driver for the loss of gastric digestion), paralleled by the loss of acid-peptic genes. We tested the hypothesis of stomach inflation as a driver for the convergent evolution of stomach loss by investigating the gastric phenotype and genotype of four distantly related stomach inflating gnathostomes: sargassum fish, swellshark, bearded goby and the pygmy leatherjacket. Strikingly, unlike in the puffer/porcupine fishes, we found no evidence for the loss of stomach function in sargassum fish, swellshark and bearded goby. Only the pygmy leatherjacket (Monochanthidae, Tetraodontiformes) lacked the gastric phenotype and genotype. In conclusion, ingestion of seawater for inflation, associated with loss of gastric acid secretion, is restricted to the Tetraodontiformes and is not a selective pressure for gastric loss in other reported gastric inflating fishes.
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Affiliation(s)
- P. Ferreira
- Department of Biology and Laurier Institute for Water Science, Wilfrid Laurier University, Waterloo, ON, Canada,Interdisciplinary Centre for Marine and Environmental Research, University of Porto, Matosinhos, Portugal,Abel Salazar Institute of Biomedical Sciences, University of Porto, Porto, Portugal
| | - G. T. Kwan
- Marine Biology Research Division, Scripps Institution of Oceanography, University of California, San Diego, La Jolla, USA
| | - S. Haldorson
- Department of Biology and Laurier Institute for Water Science, Wilfrid Laurier University, Waterloo, ON, Canada
| | - J. L. Rummer
- College of Science and Engineering and ARC Centre of Excellence for Coral Reef Studies, James Cook University, Townsville, Australia
| | - F. Tashiro
- Fisheries Science Centre, The Hokkaido University Museum, Hokkaido, Japan
| | - L. F. C. Castro
- Interdisciplinary Centre for Marine and Environmental Research, University of Porto, Matosinhos, Portugal,Faculty of Sciences, University of Porto, Portugal
| | - M. Tresguerres
- Marine Biology Research Division, Scripps Institution of Oceanography, University of California, San Diego, La Jolla, USA
| | - J. M. Wilson
- Department of Biology and Laurier Institute for Water Science, Wilfrid Laurier University, Waterloo, ON, Canada,Interdisciplinary Centre for Marine and Environmental Research, University of Porto, Matosinhos, Portugal,Abel Salazar Institute of Biomedical Sciences, University of Porto, Porto, Portugal
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Ferreira P, Sanchez-Pulido L, Marko A, Ponting CP, Boos D. Refining the domain architecture model of the replication origin firing factor Treslin/TICRR. Life Sci Alliance 2022; 5:5/5/e202101088. [PMID: 35091422 PMCID: PMC8807876 DOI: 10.26508/lsa.202101088] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 01/14/2022] [Accepted: 01/17/2022] [Indexed: 11/24/2022] Open
Abstract
Faithful genome duplication requires appropriately controlled replication origin firing. The metazoan origin firing regulation hub Treslin/TICRR and its yeast orthologue Sld3 share the Sld3-Treslin domain and the adjacent TopBP1/Dpb11 interaction domain. We report a revised domain architecture model of Treslin/TICRR. Protein sequence analyses uncovered a conserved Ku70-homologous β-barrel fold in the Treslin/TICRR middle domain (M domain) and in Sld3. Thus, the Sld3-homologous Treslin/TICRR core comprises its three central domains, M domain, Sld3-Treslin domain, and TopBP1/Dpb11 interaction domain, flanked by non-conserved terminal domains, the CIT (conserved in Treslins) and the C terminus. The CIT includes a von Willebrand factor type A domain. Unexpectedly, MTBP, Treslin/TICRR, and Ku70/80 share the same N-terminal domain architecture, von Willebrand factor type A and Ku70-like β-barrels, suggesting a common ancestry. Binding experiments using mutants and the Sld3-Sld7 dimer structure suggest that the Treslin/Sld3 and MTBP/Sld7 β-barrels engage in homotypic interactions, reminiscent of Ku70-Ku80 dimerization. Cells expressing Treslin/TICRR domain mutants indicate that all Sld3-core domains and the non-conserved terminal domains fulfil important functions during origin firing in human cells. Thus, metazoa-specific and widely conserved molecular processes cooperate during metazoan origin firing.
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Affiliation(s)
- Pedro Ferreira
- Molecular Genetics II, Centre for Medical Biotechnology, University of Duisburg-Essen, Essen, Germany
| | - Luis Sanchez-Pulido
- Medical Research Council Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - Anika Marko
- Molecular Genetics II, Centre for Medical Biotechnology, University of Duisburg-Essen, Essen, Germany
| | - Chris P Ponting
- Medical Research Council Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - Dominik Boos
- Molecular Genetics II, Centre for Medical Biotechnology, University of Duisburg-Essen, Essen, Germany
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Cruz Neves S, Júnior A, Ferreira P, Albuquerque M, Silva CF. Letter to the Editor Regarding the Article "Rethinking the Choosing Wisely Portugal Recommendation on Breast Cancer Screening". ACTA MEDICA PORT 2022; 35:77-78. [PMID: 35225771 DOI: 10.20344/amp.17478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 11/17/2021] [Indexed: 11/20/2022]
Affiliation(s)
- Sofia Cruz Neves
- Unidade de Saúde Familiar Ribeirinha, Agrupamento de Centros de Saúde Arco Ribeirinho. Barreiro. Portugal
| | - Arymar Júnior
- Unidade de Senologia. Serviço de Cirurgia Geral. Centro Hospitalar de Setúbal. Setúbal. Portugal
| | - Pedro Ferreira
- Unidade de Senologia. Serviço de Cirurgia Geral. Centro Hospitalar de Setúbal. Setúbal. Portugal
| | - Mafalda Albuquerque
- Associação Portuguesa de Apoio à Mulher com Cancro da Mama. Lisboa. Portugal
| | - Carlos Francisco Silva
- Serviço de Imagiologia. Centro Hospitalar de Setúbal. Setúbal. Colégio da Especialidade de Radiologia. Ordem dos Médicos. Lisboa. Associação Portuguesa de Radiologia, Neurorradiologia e Medicina Nuclear (APRANEMN). Porto. Secção de Gestão e Qualidade em Radiologia. Sociedade Portuguesa de Radiologia e Medicina Nuclear (SPRMN). Lisboa. Portugal
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Lupi F, Mabkhot MM, Finžgar M, Minetola P, Stadnicka D, Maffei A, Litwin P, Boffa E, Ferreira P, Podržaj P, Chelli R, Lohse N, Lanzetta M. Toward a sustainable educational engineer archetype through Industry 4.0. COMPUT IND 2022. [DOI: 10.1016/j.compind.2021.103543] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Faria C, Branco V, Ferreira P, Gouveia C, Trevas S. Total Pain Management and a Malignant Wound: The Importance of Early Palliative Care Referral. Cureus 2021; 13:e20678. [PMID: 35106219 PMCID: PMC8785238 DOI: 10.7759/cureus.20678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/23/2021] [Indexed: 11/05/2022] Open
Abstract
Breast cancer may metastasize to the lung, liver, bone, brain, and skin, with especially high rates of metastasis to skin sites.These skin metastases are called malignant wounds. Patients with malignant wounds often report multiple symptoms, and pain is one of the most common and distressing among them. Despite the availability of multiple guidelines about treatment to relieve pain, almost half of all cancer patients still receive inappropriate care for pain. A multidisciplinary approach can improve outcomes in terms of symptom control and quality of life and enable the detection of previously unmet needs of both patients and caregivers. Palliative care is a multidisciplinary therapy that aims to alleviate physical, psychological, and emotional suffering in patients at any stage of the disease. We present the case of a 53-year-old male with a three-year history of stage IV breast cancer. He was admitted to the internal medicine ward in July 2021 with uncontrolled pain related to a malignant wound in the left hemithorax. This was a case with physical, emotional, social, and existential factors contributing to severe pain, necessitating a multidisciplinary approach for adequate relief. Opioid titration and insomnia and anxiety treatment were initiated. Dressing care was applied with metronidazole impregnation and aminocaproic acid for hemorrhagic spots, followed by fat gauze. He was proposed to undergo antalgic radiotherapy, which was unfortunately associated with new onset of symptoms. Psychological support was provided for the patient and his family. We managed to control the pain and stabilize the wound; however, cachexia become evident with the disease progression. In the last week of his life, the patient still believed he would be able to undergo chemotherapy. He died in the emergency room, where he had gone to seek relief for uncontrolled symptoms. Even though the patient had an incurable disease associated with immense suffering since early 2019, he was only referred to the palliative care team during the last three months of his life. Existential suffering was an important dimension of this patient’s pain and was present until his death despite receiving psychological support. Late referral to palliative care is unfortunately frequent and often associated with poor quality of life and inability to plan or make end-of-life care decisions. Radiotherapy was proposed for pain control but was associated with serious side effects. In a palliative care setting, decision-making always needs careful consideration related to benefit versus harm and must involve the patient and his family. Living with stage IV cancer is an everyday challenge for patients, and clinicians may also find managing such patients very arduous and stressful. Symptoms must be actively studied and evaluated from a multidimensional perspective. Managing expectations throughout this process while maintaining hope is a delicate balancing act and should be undertaken by specialized palliative care teams.
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Gonçalves F, Ferreira P, Alves P. Synthesis and characterization of itaconic-based epoxy resin: Chemical and thermal properties of partially biobased epoxy resins. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.124285] [Citation(s) in RCA: 2] [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: 10/20/2022]
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Abstract
BACKGROUND Studies have indicated that shift work, in particular night work, is associated with chronic musculoskeletal pain but the mechanisms are unclear. It has been suggested that sleep disturbance, a common complaint among shift and night workers, may induce low-grade inflammation as well as heightened pain sensitivity. AIMS Firstly, this study was aimed to examine the cross-sectional associations between shift work, C-reactive protein (CRP) level and chronic musculoskeletal pain, and secondly, to analyse CRP as a mediator between shift work and chronic musculoskeletal pain. METHODS The study included 23 223 vocationally active women and men who participated in the HUNT4 Survey of the Trøndelag Health Study (HUNT). Information was collected by questionnaires, interviews, biological samples and clinical examination. RESULTS Regression analyses adjusted for sex, age and education revealed significant associations between shift work and odds of any chronic musculoskeletal pain (odd ratio [OR] 1.11, 95% confidence interval [CI] 1.04-1.19), between shift work and CRP level (OR 1.09, 95% CI 1.03-1.16) and between CRP level 3.00-10 mg/L and any chronic musculoskeletal pain (OR 1.38, 95% CI 1.27-1.51). Shift work and CRP were also associated with number of chronic pain sites. Mediation analysis indicated that shift work was indirectly associated with any chronic musculoskeletal pain through CRP (OR 1.03, 95% CI 1.01-1.06). CONCLUSIONS The results support the hypothesis that shift work is associated with chronic musculoskeletal pain, and that systemic inflammation may be a biological mechanism linking shift work to chronic pain.
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Affiliation(s)
- D Matre
- Division of Research, National Institute of Occupational Health, Oslo 0033, Norway
| | - J O Christensen
- Division of Research, National Institute of Occupational Health, Oslo 0033, Norway
| | - P J Mork
- Department of Public Health and Nursing, Norwegian University of Science and Technology (NTNU), Trondheim 7004, Norway
| | - P Ferreira
- Musculoskeletal Research Group, Faculty of Health Sciences, The University of Sydney, Sydney, New South Wales 2600, Australia
| | - T Sand
- Department of Neuromedicine and Movement Science, Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology (NTNU), Trondheim 7030, Norway.,Department of Neurology and Clinical Neurophysiology, St. Olavs Hospital, Trondheim 7030, Norway
| | - K B Nilsen
- Section for Clinical Neurophysiology, Department of Neurology, Oslo University Hospital-Ullevål, Oslo 0424, Norway
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Ferreira P, Moncelsi G, Aragay G, Ballester P. Hydrogen-Bonded Dimeric Capsules with Appended Spiropyran Units: Towards Controlled Cargo Release. Chemistry 2021; 27:12675-12685. [PMID: 34097321 PMCID: PMC8456926 DOI: 10.1002/chem.202101643] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Indexed: 01/16/2023]
Abstract
We report the synthesis of unprecedented tetra-urea derivatives of calix[4]arene and calix[4]pyrrole containing four spiropyran (SP) units at their upper rim. We investigate the photo- and acid-induced isomerization of the monomeric and homo-dimeric tetra-ureas derivatives using UV-Vis and 1 H NMR spectroscopies. At micromolar concentration, irradiation of the samples with 365 nm light induces changes in their absorption spectra that are consistent with SP→merocyanine (MC) isomerization. However, analogous experiments at millimolar concentration do not produce noticeable changes in the 1 H NMR spectra. The addition of triflic acid to micromolar and millimolar solutions of the tetra-ureas produces the quantitative isomerization of the SP units to the protonated merocyanine form (E-MCH+ ) and the simultaneous disassembly of the capsular dimers to form ill-defined aggregates. The neutralization of the acid solutions resets the SP form. Under these acid/base treatment conditions, the controlled release of the included guest and the reassembly of the all-SP tetra-urea dimers occurs at different extents depending on its calix[4]arene or calix[4]pyrrole scaffold.
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Affiliation(s)
- Pedro Ferreira
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology (BIST), Av. Països Catalans 16, 43007, Tarragona, Spain.,Department de Química Analítica i Química Orgànica, Universitat Rovira i Virgili (URV), c/Marcel⋅lí Domingo 1, 43007, Tarragona, Spain
| | - Giulia Moncelsi
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology (BIST), Av. Països Catalans 16, 43007, Tarragona, Spain.,Department de Química Analítica i Química Orgànica, Universitat Rovira i Virgili (URV), c/Marcel⋅lí Domingo 1, 43007, Tarragona, Spain
| | - Gemma Aragay
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology (BIST), Av. Països Catalans 16, 43007, Tarragona, Spain
| | - Pablo Ballester
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology (BIST), Av. Països Catalans 16, 43007, Tarragona, Spain.,ICREA, Passeig Lluís Companys 23, 08101, Barcelona, Spain
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Barradas-Ribeiro I, Santos J, Braula-Reis A, Castro M, Fernandes M, Ferreira P, Metello JL, Soares AP, Calado CR, Santos-Ribeiro S, Gallardo M. THE INTRODUCTION OF A GROUP CULTURE PROTOCOL IN DONOR OOCYTE-RECIPIENT CYCLES DID NOT INCREASE THE TOTAL USEABLE BLASTOCYST RATES: A RETROSPECTIVE STUDY. Fertil Steril 2021. [DOI: 10.1016/j.fertnstert.2021.07.360] [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: 10/20/2022]
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Affiliation(s)
- Alexandre V. Pinto
- LAQV/Requimte, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, s/n, 4169-007 Porto, Portugal
| | - Pedro Ferreira
- LAQV/Requimte, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, s/n, 4169-007 Porto, Portugal
| | - Rui P. P. Neves
- LAQV/Requimte, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, s/n, 4169-007 Porto, Portugal
| | - Pedro A. Fernandes
- LAQV/Requimte, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, s/n, 4169-007 Porto, Portugal
| | - Maria J. Ramos
- LAQV/Requimte, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, s/n, 4169-007 Porto, Portugal
| | - Alexandre L. Magalhães
- LAQV/Requimte, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, s/n, 4169-007 Porto, Portugal
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Abstract
To protect their intracellular proteins, extremophile microorganisms synthesize molecules called compatible solutes. These molecules are the result of the attachment of a small negatively charged molecule to a sugar molecule. It has been found that these molecules, not only protect the microorganism against osmotic stress, as initially thought, but also against other extreme conditions. The observation that these molecules can confer protection against extreme conditions to isolated enzymes from different organisms made them an exciting prospect for potential biotechnological applications. One of the most widespread compatible solute in hyperthermophile organisms is the molecule 2-O-α-D-mannosyl-D-glycerate (MG). In addition to confer protection to proteins against extreme conditions, MG was found to prevent Alzheimer's β-amyloid aggregation and reduce α-synuclein fibril formation in Parkinson's disease. In this work we studied, using computational methods, the catalytic mechanism of the synthesis of MG by the enzyme mannosylglycerate synthase (MGS) from the thermophilic bacteria Rhodothermus marinus . MGS is a promiscuous enzyme, accepting a variety of sugar donors and acceptors. This feature can be used to synthesize other molecules with potential biotechnological applications beyond MG. The unravelling of the catalytic mechanism with atomistic resolution and the associated free energies and electrostatic profiles of the stationary states obtained in the present work will help future investigations to full explore the potential of MGS.
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Affiliation(s)
- Pedro Ferreira
- LAQV@REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre s/n, 4169-007, Porto, Portugal
| | - Pedro A Fernandes
- LAQV@REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre s/n, 4169-007, Porto, Portugal
| | - Maria J Ramos
- LAQV@REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre s/n, 4169-007, Porto, Portugal
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Metello J, Tomás C, Ferreira P, Bravo I, Branquinho M, Santos-Ribeiro S. Impact of Plasmatic Progesterone on the Day of Frozen Embryo Transfer in Hormone-induced Cycles. Rev Bras Ginecol Obstet 2021; 43:608-615. [PMID: 34547795 PMCID: PMC10183892 DOI: 10.1055/s-0041-1735229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Accepted: 07/23/2021] [Indexed: 10/20/2022] Open
Abstract
OBJECTIVE To establish a relationship between serum progesterone values on the day of frozen blastocyst transfer in hormone-replaced cycles with the probability of pregnancy, miscarriage or delivery. METHODS This was an ambispective observational study including all frozen-thawed embryo transfer cycles performed at our department following in vitro fecundation from May 2018 to June 2019. The outcomes evaluated were β human chorionic gonadotropin (β-hCG)-positive pregnancy and delivery. Groups were compared according to the level of serum progesterone on the day of embryo transfer: the 1st quartile of progesterone was compared against the other quartiles and then the 2nd and 3rd quartiles against the 4th quartile. RESULTS A total of 140 transfers were included in the analysis: 87 with β-HCG > 10 IU/L (62%), of which 50 (36%) delivered and 37 had a miscarriage (42%). Women with lower progesterone levels (< 10.7ng/mL) had a trend toward higher β-HCG-positive (72 versus 59%; p > 0.05), lower delivery (26 versus 39%; p > 0.05) and higher miscarriage rates (64 versus 33%; p < 0.01). Comparing the middle quartiles (P25-50) with those above percentiles 75, the rate of pregnancy was similar (60 versus 57%; p > 0.05), although there was a trend toward a higher number of deliveries (43 versus 31%; p > 0.05) and a lower number of miscarriages (28 versus 45%; p > 0.05). These differences were not statistically significant. CONCLUSION There were no differences in pregnancy and delivery rates related with the progesterone level when measured in the transfer day. The miscarriage rate was higher in the 1st quartile group.
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Affiliation(s)
| | | | | | - Iris Bravo
- Hospital Garcia de Orta, Almada, Portugal
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Pinto-Almeida A, Mendes TMF, Ferreira P, Abecasis AB, Belo S, Anibal FF, Allegretti SM, Galinaro CA, Carrilho E, Afonso A. A Comparative Proteomic Analysis of Praziquantel-Susceptible and Praziquantel-Resistant Schistosoma mansoni Reveals Distinct Response Between Male and Female Animals. Front Trop Dis 2021. [DOI: 10.3389/fitd.2021.664642] [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] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Schistosomiasis is a chronic neglected tropical disease saddling millions of people in the world, mainly children living in poor rural areas. Praziquantel (PZQ) is currently the only drug used for the treatment and control of this disease. However, the extensive use of this drug has brought concern about the emergence of PZQ-resistance/tolerance by Schistosoma mansoni. Studies of Schistosoma spp. genome, transcriptome, and proteome are crucial to better understand this situation. In this in vitro study, we compare the proteomes of a S. mansoni variant strain stably resistant to PZQ and isogenic to its fully susceptible parental counterpart, identifying proteins from male and female adult parasites of PZQ-resistant and PZQ-susceptible strains, exposed and not exposed to PZQ. A total of 60 Schistosoma spp. proteins were identified, some of which present or absent in either strain, which may putatively be involved in the PZQ-resistance phenomenon. These proteins were present in adult parasites not exposed to PZQ, but some of them disappeared when these adult parasites were exposed to the drug. Understanding the development of PZQ-resistance in S. mansoni is crucial to prolong the efficacy of the current drug and develop markers for monitoring the potential emergence of drug resistance.
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Abstract
Fatty acids are crucial molecules for most living beings, very well spread and conserved across species. These molecules play a role in energy storage, cell membrane architecture, and cell signaling, the latter through their derivative metabolites. De novo synthesis of fatty acids is a complex chemical process that can be achieved either by a metabolic pathway built by a sequence of individual enzymes, such as in most bacteria, or by a single, large multi-enzyme, which incorporates all the chemical capabilities of the metabolic pathway, such as in animals and fungi, and in some bacteria. Here we focus on the multi-enzymes, specifically in the animal fatty acid synthase (FAS). We start by providing a historical overview of this vast field of research. We follow by describing the extraordinary architecture of animal FAS, a homodimeric multi-enzyme with seven different active sites per dimer, including a carrier protein that carries the intermediates from one active site to the next. We then delve into this multi-enzyme's detailed chemistry and critically discuss the current knowledge on the chemical mechanism of each of the steps necessary to synthesize a single fatty acid molecule with atomic detail. In line with this, we discuss the potential and achieved FAS applications in biotechnology, as biosynthetic machines, and compare them with their homologous polyketide synthases, which are also finding wide applications in the same field. Finally, we discuss some open questions on the architecture of FAS, such as their peculiar substrate-shuttling arm, and describe possible reasons for the emergence of large megasynthases during evolution, questions that have fascinated biochemists from long ago but are still far from answered and understood.
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Affiliation(s)
- Pedro Paiva
- LAQV, REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal
| | - Fabiola E Medina
- Departamento de Ciencias Químicas, Facultad de Ciencias Exactas, Universidad Andres Bello, Autopista Concepción-Talcahuano, 7100 Talcahuano, Chile
| | - Matilde Viegas
- LAQV, REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal
| | - Pedro Ferreira
- LAQV, REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal
| | - Rui P P Neves
- LAQV, REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal
| | - João P M Sousa
- LAQV, REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal
| | - Maria J Ramos
- LAQV, REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal
| | - Pedro A Fernandes
- LAQV, REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal
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Bergen ES, Scherleitner P, Ferreira P, Kiesel B, Müller C, Widhalm G, Dieckmann K, Prager G, Preusser M, Berghoff AS. Primary tumor side is associated with prognosis of colorectal cancer patients with brain metastases. ESMO Open 2021; 6:100168. [PMID: 34098230 PMCID: PMC8190486 DOI: 10.1016/j.esmoop.2021.100168] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 05/07/2021] [Accepted: 05/11/2021] [Indexed: 01/05/2023] Open
Abstract
Background Brain metastases (BM) are a rare complication in colorectal cancer (CRC) patients and associated with an unfavorable survival prognosis. Primary tumor side (PTS) was shown to act as a prognostic and predictive biomarker in several trials including metastatic CRC (mCRC) patients. Here, we aim to investigate whether PTS is also associated with the outcome of CRC patients with BM. Methods Patients treated for CRC BM between 1988 and 2017 at an academic care center were included. Right-sided CRC was defined as located in the appendix, cecum and ascending colon and left-sided CRC was defined as located in the descending colon, sigma and rectum. Results Two hundred and eighty-one CRC BM patients were available for this analysis with 239/281 patients (85.1%) presenting with a left-sided and 42/281 patients (14.9%) with a right-sided primary CRC. BM-free survival (BMFS) was significantly longer in left-sided compared with right-sided CRC patients (33 versus 20 months, P = 0.009). Overall survival from CRC diagnosis as well as from diagnosis of BM was significantly longer in patients with a left-sided primary (42 versus 25 months, P = 0.002 and 5 versus 4 months, P = 0.005, respectively). In a multivariate analysis including graded prognostic assessment, PTS remained significantly associated with prognosis after BM (hazard ratio 0.65; 95% confidence interval: 0.46-0.92 months, P = 0.0016). Conclusions PTS was associated with survival times after the rare event of BM development in CRC patients. Therefore, its prognostic value remains significant even thereafter. Primary tumor side is a relevant and independent prognostic factor in mCRC. Left-sided CRC was associated with a significantly longer BMFS compared with right-sided CRC. OS from initial diagnosis of CRC as well as from BM was significantly longer in patients with left-sided primaries.
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Affiliation(s)
- E S Bergen
- Department of Medicine I, Division of Oncology, Medical University of Vienna, Vienna, Austria
| | - P Scherleitner
- Department of Medicine I, Division of Oncology, Medical University of Vienna, Vienna, Austria
| | - P Ferreira
- Department of Medicine I, Division of Oncology, Medical University of Vienna, Vienna, Austria
| | - B Kiesel
- Department of Neurosurgery, Medical University of Vienna, Vienna, Austria
| | - C Müller
- Department of Surgery, Medical University of Vienna, Vienna, Austria
| | - G Widhalm
- Department of Neurosurgery, Medical University of Vienna, Vienna, Austria
| | - K Dieckmann
- Department of Radiooncology, Medical University of Vienna, Vienna, Austria
| | - G Prager
- Department of Medicine I, Division of Oncology, Medical University of Vienna, Vienna, Austria
| | - M Preusser
- Department of Medicine I, Division of Oncology, Medical University of Vienna, Vienna, Austria
| | - A S Berghoff
- Department of Medicine I, Division of Oncology, Medical University of Vienna, Vienna, Austria.
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