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Silva MF, Pereira G, Mateus L, da Costa LL, Silva E. Design of a multi-epitope-based vaccine candidate against Bovine Genital Campylobacteriosis using a reverse vaccinology approach. BMC Vet Res 2024; 20:144. [PMID: 38641595 PMCID: PMC11027316 DOI: 10.1186/s12917-024-04006-x] [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: 08/29/2023] [Accepted: 04/04/2024] [Indexed: 04/21/2024] Open
Abstract
BACKGROUND Bovine Genital Campylobacteriosis (BGC), a worldwide distributed venereal disease caused by Campylobacter fetus subsp. venerealis (Cfv), has a relevant negative economic impact in cattle herds. The control of BGC is hampered by the inexistence of globally available effective vaccines. The present in silico study aimed to develop a multi-epitope vaccine candidate against Cfv through reverse vaccinology. RESULTS The analysis of Cfv strain NCTC 10354 proteome allowed the identification of 9 proteins suitable for vaccine development. From these, an outer membrane protein, OmpA, and a flagellar protein, FliK, were selected for prediction of B-cell and T-cell epitopes. The top-ranked epitopes conservancy was assessed in 31 Cfv strains. The selected epitopes were integrated to form a multi-epitope fragment of 241 amino acids, which included 2 epitopes from OmpA and 13 epitopes from FliK linked by GPGPG linkers and connected to the cholera toxin subunit B by an EAAAK linker. The vaccine candidate was predicted to be antigenic, non-toxic, non-allergenic, and soluble upon overexpression. The protein structure was predicted and optimized, and the sequence was successfully cloned in silico into a plasmid vector. Additionally, immunological simulations demonstrated the vaccine candidate's ability to stimulate an immune response. CONCLUSIONS This study developed a novel vaccine candidate suitable for further in vitro and in vivo experimental validation, which may become a useful tool for the control of BGC.
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Affiliation(s)
- Marta Filipa Silva
- CIISA - Centre for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, Lisbon, Portugal
- Associate Laboratory for Animal and Veterinary Science (AL4AnimalS), Lisbon, Portugal
- Faculty of Veterinary Medicine, Lusófona University, Lisbon, Portugal
| | - Gonçalo Pereira
- CIISA - Centre for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, Lisbon, Portugal
- Associate Laboratory for Animal and Veterinary Science (AL4AnimalS), Lisbon, Portugal
| | - Luísa Mateus
- CIISA - Centre for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, Lisbon, Portugal
- Associate Laboratory for Animal and Veterinary Science (AL4AnimalS), Lisbon, Portugal
| | - Luís Lopes da Costa
- CIISA - Centre for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, Lisbon, Portugal
- Associate Laboratory for Animal and Veterinary Science (AL4AnimalS), Lisbon, Portugal
| | - Elisabete Silva
- CIISA - Centre for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, Lisbon, Portugal.
- Associate Laboratory for Animal and Veterinary Science (AL4AnimalS), Lisbon, Portugal.
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Pereira G, Charpigny G, Guo Y, Silva E, Silva MF, Ye T, Lopes-da-Costa L, Humblot P. Characterization of circulating microRNA profiles of postpartum dairy cows with persistent subclinical endometritis. J Dairy Sci 2023; 106:9704-9717. [PMID: 37641364 DOI: 10.3168/jds.2023-23616] [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: 04/14/2023] [Accepted: 05/30/2023] [Indexed: 08/31/2023]
Abstract
Subclinical endometritis (SCE) is an unresolved inflammation of the endometrium of postpartum dairy cows, seriously affecting fertility. Current diagnosis, which relies on uterine cytology or even more invasive biopsy sampling, would benefit from the identification of blood-based diagnostic biomarkers. Due to the known role of microRNAs (miRNAs) in other diseases, this case-control study evaluated the cell-free circulating miRNA profiles of SCE cows, and the network of transcripts predicted to interact with those miRNAs, previously identified as differentially expressed genes (DEG) in the endometrium of the same cows. Healthy (H, n = 6) and persistent SCE (n = 11) cows characterized by endometrial cytology and biopsy were blood sampled at 21 and 44 d postpartum (DPP). Following extraction of cell-free plasma miRNAs and RNA-seq analysis, differential abundance analysis of miRNAs was performed with the DESeq2 R package (adjusted p-value of 0.05), and in silico prediction of miRNA-interacting genes on a sequence complementary basis was conducted using the miRWalk database. The principal component analysis showed a clear clustering between groups of uterine health phenotypes (H vs. SCE), although the clustering between groups was less pronounced at 44 DPP than at 21 DPP. No effect of the stage (21 vs. 44 DPP) was observed. A total of 799 known circulating miRNAs were identified, from which 34 demonstrated differential abundance between H and SCE cows (12 less abundant and 22 more abundant in SCE than in H cows). These 34 miRNAs are predicted to interact with 10,104 transcripts, among which 43, 81, and 147 were previously identified as differentially expressed in, respectively, endometrial luminal epithelial, glandular epithelial, and stromal cells of the same cows. This accounts for approximately half of the DEG identified between those H and SCE cows, including genes involved in endometrial cell proliferation, angiogenesis and immune response, whose dysregulation in SCE cows may impair pregnancy establishment. From 219 miRNAs with mean normalized read counts above 100, the presence and abundance of miR-425-3p and miR-2285z had the highest discriminatory level to differentiate SCE from H cows. In conclusion, despite apparent confinement to the endometrium, SCE is associated with a distinct circulating miRNA profile, which may represent a link between the systemic changes associated with disease and the endometrial immune response. The validation of a miRNA panel consisting of circulating cell-free miR-425-3p and miR-2285z may prove a relevant advancement for the noninvasive diagnosis of persistent SCE.
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Affiliation(s)
- Gonçalo Pereira
- CIISA-Centre for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, 1300-477 Lisbon, Portugal; Associate Laboratory for Animal and Veterinary Sciences (AL4AnimalS), 1300-477 Lisbon, Portugal
| | - Gilles Charpigny
- Université Paris-Saclay, INRAE, ENVA, BREED, 78350, Jouy-en-Josas, France
| | - Yongzhi Guo
- Department of Clinical Sciences, Swedish University of Agricultural Sciences, SLU, PO, 750 07 Uppsala, Sweden
| | - Elisabete Silva
- CIISA-Centre for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, 1300-477 Lisbon, Portugal; Associate Laboratory for Animal and Veterinary Sciences (AL4AnimalS), 1300-477 Lisbon, Portugal
| | - Marta Filipa Silva
- CIISA-Centre for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, 1300-477 Lisbon, Portugal; Associate Laboratory for Animal and Veterinary Sciences (AL4AnimalS), 1300-477 Lisbon, Portugal; Faculty of Veterinary Medicine, Lusófona University, 1749-024 Lisbon, Portugal
| | - Tao Ye
- Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), Institut National de la Santé et de la Recherche Médicale (INSERM) U1258, Centre National de Recherche Scientifique (CNRS) UMR7104, Université de Strasbourg,1 rue Laurent Fries, 67404 Illkirch, France
| | - Luís Lopes-da-Costa
- CIISA-Centre for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, 1300-477 Lisbon, Portugal; Associate Laboratory for Animal and Veterinary Sciences (AL4AnimalS), 1300-477 Lisbon, Portugal.
| | - Patrice Humblot
- Department of Clinical Sciences, Swedish University of Agricultural Sciences, SLU, PO, 750 07 Uppsala, Sweden
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Da Silva JD, Ribeiro I, Caseiro C, Pinto E, Rocha S, Ribeiro H, Ferreira C, Silva E, Laranjeira F, Tkachenko N, Lacerda L, Quelhas D. Impact of Structural GLA Protein Changes on Peripheral GLA Activity and Substrate Accumulation in Fabry Disease Patients. Endocr Metab Immune Disord Drug Targets 2023; 23:EMIDDT-EPUB-134544. [PMID: 37711123 DOI: 10.2174/1871530323666230914114414] [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: 07/12/2023] [Accepted: 08/17/2023] [Indexed: 09/16/2023]
Abstract
INTRODUCTION Fabry disease is an X-linked lysosomal storage disorder caused by pathogenic variants in the GLA gene, leading to decreased/absent α-galactosidase activity. In clinical practice, enzyme activity and substrate/byproduct accumulation play a role in diagnosis and disease-monitoring biomarkers. However, interpreting biomarker levels is not straightforward and can change according to the underlying GLA protein abnormality. OBJECTIVE Our goals were to understand how disrupting specific protein regions changes biomarker behaviour and to establish specific patterns for individual variants. METHODOLOGY We analysed data from the Biochemical Genetics Laboratory regarding GLA variants, GLA enzyme activity (in dried blood spots, plasma or white blood cells), plasma LysoGb3 accumulation, and urinary Gb3 excretion. We assessed correlations, trends, and potential predictor models of biomarker behaviour. RESULTS We assessed 169 hemizygous male and 255 heterozygous female patients. For both groups, substrate accumulation correlates inversely with GLA activity. Variants affecting residues buried within the protein core or the active site were associated with more severe biomarker changes, while those affecting residues that establish disulfide bonds or are glycosylated were similar to other variants. For each non-truncating variant, we also established specific profiles of biomarker behaviour. Finally, we also designed predictor models of biomarker behaviour based on structural variant information. This study provides the groundwork for the impact of GLA protein variation on GLA activity and substrate accumulation. CONCLUSION This knowledge is of extreme relevance for diagnostic labs and clinicians, as some genetic variants are challenging to interpret regarding pathogenicity. Assessing whether biomarker changes are in the expected range for a specific variant may help diagnostic evaluation. This study also contributes to recognising non-disease-causing variants, considering their overall biochemical impact, and providing a comparative reference for biomarker discovery studies. In the future, the correlation of these findings with disease severity may be of great relevance for diagnosis and monitoring progression.
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Affiliation(s)
- Jorge Diogo Da Silva
- Centro de Genética Médica Doutor Jacinto Magalhães, Centro Hospitalar Universitário de Santo António, Porto, Portugal
| | - Isaura Ribeiro
- Centro de Genética Médica Doutor Jacinto Magalhães, Centro Hospitalar Universitário de Santo António, Porto, Portugal
| | - Carla Caseiro
- Centro de Genética Médica Doutor Jacinto Magalhães, Centro Hospitalar Universitário de Santo António, Porto, Portugal
| | - Eugénia Pinto
- Centro de Genética Médica Doutor Jacinto Magalhães, Centro Hospitalar Universitário de Santo António, Porto, Portugal
| | - Sónia Rocha
- Centro de Genética Médica Doutor Jacinto Magalhães, Centro Hospitalar Universitário de Santo António, Porto, Portugal
| | - Helena Ribeiro
- Centro de Genética Médica Doutor Jacinto Magalhães, Centro Hospitalar Universitário de Santo António, Porto, Portugal
| | - Célia Ferreira
- Centro de Genética Médica Doutor Jacinto Magalhães, Centro Hospitalar Universitário de Santo António, Porto, Portugal
| | - Elisabete Silva
- Centro de Genética Médica Doutor Jacinto Magalhães, Centro Hospitalar Universitário de Santo António, Porto, Portugal
| | - Francisco Laranjeira
- Centro de Genética Médica Doutor Jacinto Magalhães, Centro Hospitalar Universitário de Santo António, Porto, Portugal
| | - Nataliya Tkachenko
- Centro de Genética Médica Doutor Jacinto Magalhães, Centro Hospitalar Universitário de Santo António, Porto, Portugal
| | - Lúcia Lacerda
- Centro de Genética Médica Doutor Jacinto Magalhães, Centro Hospitalar Universitário de Santo António, Porto, Portugal
| | - Dulce Quelhas
- Centro de Genética Médica Doutor Jacinto Magalhães, Centro Hospitalar Universitário de Santo António, Porto, Portugal
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Rogers BG, Chan PA, Sutten-Coats C, Zanowick-Marr A, Patel RR, Mena L, Goedel WC, Chu C, Silva E, Galipeau D, Arnold T, Gomillia C, Curoe K, Villalobos J, Underwood A, Sosnowy C, Nunn AS. Perspectives on long-acting formulations of pre-exposure prophylaxis (PrEP) among men who have sex with men who are non-adherent to daily oral PrEP in the United States. BMC Public Health 2023; 23:1643. [PMID: 37641018 PMCID: PMC10463714 DOI: 10.1186/s12889-023-16382-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Accepted: 07/25/2023] [Indexed: 08/31/2023] Open
Abstract
INTRODUCTION Pre-exposure prophylaxis (PrEP) persistence among men who have sex with men (MSM) in real world clinical settings for HIV prevention is suboptimal. New longer-acting formulations of PrEP are becoming available, including injectables, subdermal implants, and other oral medications. These longer-acting formulations have the potential to improve retention among those who have challenges remaining adherent to daily oral PrEP. METHODS We interviewed 49 MSM who had initiated but discontinued oral PrEP at three diverse clinics across the United States. We examined participants' perspectives about long-acting PrEP formulations and how long-acting options could affect PrEP use using thematic analysis. RESULTS Participants were not very knowledgeable about long-acting formulations of PrEP but were open to learning about them and considering use. Participants were concerned about safety and efficacy of products given that they were still newer and/or in development. Finally, participants had clear preferences for oral pills, injectables, and then subdermal implants and were most interested in options that reduced the number of visits to the clinic. CONCLUSION Long-acting formulations of PrEP are acceptable to MSM with suboptimal PrEP persistence and have the potential to improve PrEP persistence. However, many felt they needed more information on safety, efficacy, and use to consider these options. As these long-acting formulations are implemented, public health campaigns and clinical interventions to encourage may maximize uptake particularly among those who are not currently adherent to daily oral PrEP.
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Affiliation(s)
- Brooke G Rogers
- Department of Medicine, Division of Infectious Diseases,, Warren Alpert Medical School of Brown University, Providence, 02903, USA.
- Department of Psychiatry and Human Behavior, Warren Alpert Medical School of Brown University, Providence, 02903, USA.
| | - P A Chan
- Department of Medicine, Division of Infectious Diseases,, Warren Alpert Medical School of Brown University, Providence, 02903, USA
- Department of Social and Behavioral Sciences, Brown University School of Public Health, Rhode Island, Providence, 02903, USA
| | - C Sutten-Coats
- Department of Social and Behavioral Sciences, Brown University School of Public Health, Rhode Island, Providence, 02903, USA
| | - A Zanowick-Marr
- Department of Medicine, Division of Infectious Diseases,, Warren Alpert Medical School of Brown University, Providence, 02903, USA
| | - R R Patel
- Department of Infectious Diseases, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - L Mena
- Department of Population Health Science, University of Mississippi Medical Center, Jackson, MS, 39216, USA
- Department of Medicine, Division of Infectious Diseases, University of Mississippi Medical Center, Jackson, MS, 39216, USA
| | - W C Goedel
- Department of Epidemiology, Brown University School of Public Health, Rhode Island, Providence, 02903, USA
| | - C Chu
- Department of Medicine, Division of Infectious Diseases,, Warren Alpert Medical School of Brown University, Providence, 02903, USA
| | - E Silva
- Department of Medicine, Division of Infectious Diseases,, Warren Alpert Medical School of Brown University, Providence, 02903, USA
| | - D Galipeau
- Department of Medicine, Division of Infectious Diseases,, Warren Alpert Medical School of Brown University, Providence, 02903, USA
| | - T Arnold
- Department of Psychiatry and Human Behavior, Warren Alpert Medical School of Brown University, Providence, 02903, USA
| | - C Gomillia
- Department of Medicine, Division of Infectious Diseases, University of Mississippi Medical Center, Jackson, MS, 39216, USA
| | - K Curoe
- Department of Infectious Diseases, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - J Villalobos
- Department of Infectious Diseases, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - A Underwood
- Department of Infectious Diseases, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - C Sosnowy
- Department of Medicine, Division of Infectious Diseases,, Warren Alpert Medical School of Brown University, Providence, 02903, USA
| | - Amy S Nunn
- Department of Medicine, Division of Infectious Diseases,, Warren Alpert Medical School of Brown University, Providence, 02903, USA.
- Department of Social and Behavioral Sciences, Brown University School of Public Health, Rhode Island, Providence, 02903, USA.
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Zina R, Cunha E, Serrano I, Silva E, Tavares L, Oliveira M. Nisin Z Potential for the Control of Diabetic Foot Infections Promoted by Pseudomonas aeruginosa Persisters. Antibiotics (Basel) 2023; 12:antibiotics12050794. [PMID: 37237697 DOI: 10.3390/antibiotics12050794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 04/19/2023] [Accepted: 04/20/2023] [Indexed: 05/28/2023] Open
Abstract
Diabetic foot ulcers (DFU) are a major complication of diabetes mellitus and a public health concern worldwide. The ability of P. aeruginosa to form biofilms is a key factor responsible for the chronicity of diabetic foot infections (DFIs) and frequently associated with the presence of persister cells. These are a subpopulation of phenotypic variants highly tolerant to antibiotics for which new therapeutic alternatives are urgently needed, such as those based on antimicrobial peptides. This study aimed to evaluate the inhibitory effect of nisin Z on P. aeruginosa DFI persisters. To induce the development of a persister state in both planktonic suspensions and biofilms, P. aeruginosa DFI isolates were exposed to carbonyl cyanide m-chlorophenylhydrazone (CCCP) and ciprofloxacin, respectively. After RNA extraction from CCCP-induced persisters, transcriptome analysis was performed to evaluate the differential gene expression between the control, persisters, and persister cells exposed to nisin Z. Nisin Z presented a high inhibitory effect against P. aeruginosa persister cells but was unable to eradicate them when present in established biofilms. Transcriptome analysis revealed that persistence was associated with downregulation of genes related to metabolic processes, cell wall synthesis, and dysregulation of stress response and biofilm formation. After nisin Z treatment, some of the transcriptomic changes induced by persistence were reversed. In conclusion, nisin Z could be considered as a potential complementary therapy for treating P. aeruginosa DFI, but it should be applied as an early treatment or after wound debridement.
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Affiliation(s)
- Rafaela Zina
- CIISA-Centre for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, Avenida da Universidade Técnica, 1300-477 Lisboa, Portugal
- Associate Laboratory for Animal and Veterinary Sciences (AL4AnimalS), 1300-477 Lisboa, Portugal
| | - Eva Cunha
- CIISA-Centre for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, Avenida da Universidade Técnica, 1300-477 Lisboa, Portugal
- Associate Laboratory for Animal and Veterinary Sciences (AL4AnimalS), 1300-477 Lisboa, Portugal
| | - Isa Serrano
- CIISA-Centre for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, Avenida da Universidade Técnica, 1300-477 Lisboa, Portugal
- Associate Laboratory for Animal and Veterinary Sciences (AL4AnimalS), 1300-477 Lisboa, Portugal
| | - Elisabete Silva
- CIISA-Centre for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, Avenida da Universidade Técnica, 1300-477 Lisboa, Portugal
- Associate Laboratory for Animal and Veterinary Sciences (AL4AnimalS), 1300-477 Lisboa, Portugal
| | - Luís Tavares
- CIISA-Centre for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, Avenida da Universidade Técnica, 1300-477 Lisboa, Portugal
- Associate Laboratory for Animal and Veterinary Sciences (AL4AnimalS), 1300-477 Lisboa, Portugal
| | - Manuela Oliveira
- CIISA-Centre for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, Avenida da Universidade Técnica, 1300-477 Lisboa, Portugal
- Associate Laboratory for Animal and Veterinary Sciences (AL4AnimalS), 1300-477 Lisboa, Portugal
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Simão Coelho P, Martins Dos Santos G, Mikovic M, Oliveira J, Rosa S, Silva E, Leiria Pinto P. The impact of a drug allergy label in an internal medicine ward. Eur Ann Allergy Clin Immunol 2023. [PMID: 36975723 DOI: 10.23822/eurannaci.1764-1489.293] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
Abstract
Summary Background. Drug hypersensitivity reactions are presumably immune-mediated reactions that cause reproducible signs and/or symptoms. Overdiagnosis of drug allergy, frequently self-reported, is common and carries significant limitations. We intended to analyze the frequency and impact of drug allergy in hospitalized patients. Methods. A retrospective study was conducted in an Internal Medicine ward at a tertiary hospital in Portugal. All patients with a drug allergy report admitted within a 3-year period were included. Data were collected from their electronic medical records. Results. We found that 15.4% of patients had a report of drug allergy, with antibiotics being the most common (56.4%), followed by non-steroidal anti-inflammatory drugs (21.7%) and radiocontrast media (7.0%). The allergy report affected the clinical approach of 14.5% of patients by motivating the use of second-line agents, or the eviction of necessary procedures. The usage of alternative antibiotics entailed a cost increase of 2.4 times. There were 14.7% of patients to whom the suspected drug was administered: 87.0% tolerated and 13.0% developed a reaction. Only 1.9% were referred to our Allergy and Clinical Immunology department and proceeded in their allergy study. Conclusions. In this study, a considerable number of patients had a drug allergy label on their records. This label contributed to an increase in the cost of treatment, or the avoidance of necessary exams. However, disregarding an allergy record may lead to potentially life-threatening reactions that proper risk assessment could avoid. Further investigation should always be part of the follow-up routine of these patients, and better articulation between departments should be encouraged.
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Affiliation(s)
- P Simão Coelho
- Department of Allergy and Clinical Immunology, Centro Hospitalar Universitário de Lisboa Central, Lisbon, Portugal
| | - G Martins Dos Santos
- Department of Allergy and Clinical Immunology, Centro Hospitalar Universitário de Lisboa Central, Lisbon, Portugal
| | - M Mikovic
- Department of Allergy and Clinical Immunology, Centro Hospitalar Universitário de Lisboa Central, Lisbon, Portugal
| | - J Oliveira
- Internal Medicine Unit 2.3, Centro Hospitalar Universitário de Lisboa Central, Lisbon, Portugal
| | - S Rosa
- Department of Allergy and Clinical Immunology, Centro Hospitalar Universitário de Lisboa Central, Lisbon, Portugal
| | - E Silva
- Department of Allergy and Clinical Immunology, Centro Hospitalar Universitário de Lisboa Central, Lisbon, Portugal
| | - P Leiria Pinto
- Department of Allergy and Clinical Immunology, Centro Hospitalar Universitário de Lisboa Central, Lisbon, Portugal
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Gomes S, Baltazar F, Silva E, Preto A. Microbiota-Derived Short-Chain Fatty Acids: New Road in Colorectal Cancer Therapy. Pharmaceutics 2022; 14:2359. [PMID: 36365177 PMCID: PMC9698921 DOI: 10.3390/pharmaceutics14112359] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 10/28/2022] [Accepted: 10/28/2022] [Indexed: 08/13/2023] Open
Abstract
The colon microbiota is an important player in colorectal cancer (CRC) development, which is responsible for most of the cancer-related deaths worldwide. During carcinogenesis, the colon microbiota composition changes from a normobiosis profile to dysbiosis, interfering with the production of short-chain fatty acids (SCFAs). Each SCFA is known to play a role in several biological processes but, despite their reported individual effects, colon cells are exposed to these compounds simultaneously and the combined effect of SCFAs in colon cells is still unknown. Our aim was to explore the effects of SCFAs, alone or in combination, unveiling their biological impact on CRC cell phenotypes. We used a mathematical model for the prediction of the expected SCFA mixture effects and found that, when in mixture, SCFAs exhibit a concentration addition behavior. All SCFAs, alone or combined at the physiological proportions founded in the human colon, revealed to have a selective and anticancer effect by inhibiting colony formation and cell proliferation, increasing apoptosis, disturbing the energetic metabolism, inducing lysosomal membrane permeabilization, and decreasing cytosolic pH. We showed for the first time that SCFAs are specific towards colon cancer cells, showing promising therapeutic effects. These findings open a new road for the development of alternatives for CRC therapy based on the increase in SCFA levels through the modulation of the colon microbiota composition.
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Affiliation(s)
- Sara Gomes
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, Campus de Gualtar, University of Minho, 4710-057 Braga, Portugal
- Institute of Science and Innovation for Bio-Sustainability (IBS), University of Minho, 4710-054 Braga, Portugal
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, 4710-054 Braga, Portugal
- Department of Life Sciences, Brunel University (BU), London UB8 3PH, UK
| | - Fátima Baltazar
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, 4710-054 Braga, Portugal
- ICVS/3B’s PT Government Associate Laboratory, 4806-909 Braga/Guimarães, Portugal
| | - Elisabete Silva
- Department of Life Sciences, Brunel University (BU), London UB8 3PH, UK
| | - Ana Preto
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, Campus de Gualtar, University of Minho, 4710-057 Braga, Portugal
- Institute of Science and Innovation for Bio-Sustainability (IBS), University of Minho, 4710-054 Braga, Portugal
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Berne P, Usai F, Silva E, Onida A, Melis I, Casu G. Diagnosis of channelopathies affects quality of life and psychological status in patients and relatives. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Cardiac channelopathies are a group of inherited cardiovascular diseases with increased risk of sudden cardiac death in structurally normal hearts. The psychological status after their diagnosis has not been thoroughly studied.
Purpose
To establish health-related quality of life (QOL) and emotional response to the diagnosis of channelopathies in a cohort of patients and their families.
Methods
Adult patients with diagnosis of channelopathies and their relatives were eligible. After enrolment they were divided in 3 groups, according to the time of psychological evaluation: At diagnosis (T0), one year (T1), and 2 years after diagnosis (T2). Psychological evaluation was conducted through self-report questionnaires on QOL (SF-12), general anxiety (BAI), depression (BDI-II), perceived stress (PSS-10), post-traumatic stress (IES-R), and protective resilience resources (RSA).
Results
From August 2020 to April 2021, 64 patients (95% Brugada syndrome, 3% long QT syndrome, and 2% catecholaminergic polymorphic ventricular tachycardia) and 41 relatives were enrolled. A control group of 105 healthy subjects, matched to the study group regarding age, gender and level of education, was also enrolled.
Patients at T0 showed increased physical and reduced mental QOL; at T1, reduction of RSA; and at T2, reduction of RSA and increased BAI. A significant percentage of patients referred the occurrence of a traumatic event during their lifetime at T0, T1 and T2 (Figure 1). At T0 relatives presented high PSS-10 and a high proportion of them reported experiencing a traumatic episode during their lifetime. BAI score was high among relatives at T0, T1 and T2, reaching levels of concern 2 years after the diagnosis (Figure 2). Female gender independently predicted MCS-12 in patients at T0.
Conclusions
Diagnosis of channelopathies impact different areas of QOL and the psychological sphere in patients (QOL, resilience, anxiety and occurrence of traumatic events during lifetime) and relatives (anxiety, stress, and occurrence of traumatic events during lifetime), and at different moments after the diagnosis. Female gender was an independent predictor of worse mental QOL in patients at T0. Patients and their families should be involved in psychological counselling and psychoeducational interventions, taking into account their differences and the timing of psychological responses, in order to better support them in adjusting to their new life circumstances.
Funding Acknowledgement
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): Regione Autonoma della Sardegna
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Affiliation(s)
- P Berne
- SS. Annunziata Hospital, Cardiology Department , Sassari , Italy
| | - F Usai
- SS. Annunziata Hospital, Cardiology Department , Sassari , Italy
| | - E Silva
- University Hospital Puerta del Mar, Cardiology , Cadiz , Spain
| | - A Onida
- San Francesco Hospital, Neurology and Stroke Unit , Nuoro , Italy
| | - I Melis
- SS. Annunziata Hospital, Cardiology Department , Sassari , Italy
| | - G Casu
- SS. Annunziata Hospital, Cardiology Department , Sassari , Italy
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Penteado RMC, Costa TGR, Mendes CEA, Silva E, Villarinho AAR, Aranda VF, Santos AOD, Bento LC, Constantino NR, Guerra JCC. PERFORMANCE DOS TESTES DE COAGULAÇÃO CONVENCIONAIS UTILIZANDO DIFERENTES METODOLOGIAS EM AMOSTRAS VISIVELMENTE HEMOLISADAS, ICTÉRICAS E LIPÊMICAS. Hematol Transfus Cell Ther 2022. [DOI: 10.1016/j.htct.2022.09.923] [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: 11/06/2022] Open
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10
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Silva MF, Kienesberger S, Pereira G, Mateus L, Lopes-da-Costa L, Silva E. Molecular diagnosis of bovine genital campylobacteriosis using high-resolution melting analysis. Front Microbiol 2022; 13:969825. [PMID: 36160264 PMCID: PMC9501873 DOI: 10.3389/fmicb.2022.969825] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Accepted: 08/23/2022] [Indexed: 11/13/2022] Open
Abstract
Bovine Genital Campylobacteriosis (BGC) is a worldwide spread venereal disease of cattle caused by Campylobacter fetus subsp. venerealis (Cfv). Although several real-time PCR assays were developed for Cfv identification, most target mobile genetic elements, which may lead to false-positive diagnosis. In this study, a real-time PCR assay coupled with High-Resolution Melting analysis (HRM) was developed for the identification of Campylobacter fetus subspecies and application in BGC diagnosis. Two HRM assays targeting different single nucleotide polymorphisms were validated using 51 C. fetus strains, including 36 Cfv and 15 C. fetus subsp. fetus (Cff). The specificity was assessed in 50 preputial samples previously tested as negative for C. fetus and in 24 strains from other Campylobacter species. The analytical sensitivity was determined with ten-fold dilutions of Cfv genome copies and in preputial samples spiked with Cfv cells. Both HRM assays accurately identified the 51 C. fetus strains, showing 100% concordance with the previous identification. C. fetus subspecies identification by HRM showed concordant results with the glycine test in 98.0% of the isolates. No amplification was obtained in C. fetus negative preputial samples as well as in strains from other Campylobacter species. The assays were able to detect 102 genome copies of Cfv, while for preputial washing samples the limit of detection was 103 CFU/mL. These novel HRM assays represent a highly specific and sensitive tool for the identification of C. fetus subspecies and show potential for direct use in bull preputial samples for BGC diagnosis.
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Affiliation(s)
- Marta Filipa Silva
- Faculdade de Medicina Veterinária, Centro de Investigação Interdisciplinar em Sanidade Animal (CIISA), Universidade de Lisboa, Lisbon, Portugal
- Associate Laboratory for Animal and Veterinary Science (AL4AnimalS), Lisbon, Portugal
| | - Sabine Kienesberger
- Institute of Molecular Biosciences, University of Graz, Graz, Austria
- BioTechMed-Graz, Graz, Austria
- Field of Excellence BioHealth, University of Graz, Graz, Austria
| | - Gonçalo Pereira
- Faculdade de Medicina Veterinária, Centro de Investigação Interdisciplinar em Sanidade Animal (CIISA), Universidade de Lisboa, Lisbon, Portugal
- Associate Laboratory for Animal and Veterinary Science (AL4AnimalS), Lisbon, Portugal
| | - Luísa Mateus
- Faculdade de Medicina Veterinária, Centro de Investigação Interdisciplinar em Sanidade Animal (CIISA), Universidade de Lisboa, Lisbon, Portugal
- Associate Laboratory for Animal and Veterinary Science (AL4AnimalS), Lisbon, Portugal
| | - Luís Lopes-da-Costa
- Faculdade de Medicina Veterinária, Centro de Investigação Interdisciplinar em Sanidade Animal (CIISA), Universidade de Lisboa, Lisbon, Portugal
- Associate Laboratory for Animal and Veterinary Science (AL4AnimalS), Lisbon, Portugal
| | - Elisabete Silva
- Faculdade de Medicina Veterinária, Centro de Investigação Interdisciplinar em Sanidade Animal (CIISA), Universidade de Lisboa, Lisbon, Portugal
- Associate Laboratory for Animal and Veterinary Science (AL4AnimalS), Lisbon, Portugal
- *Correspondence: Elisabete Silva,
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11
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Ferreira M, Costa J, Antão D, Silva E, Passos J, Vilares M, Vasques H, Patrocínio I, Silva C, Santos F, Salgado D, Lacerda M. P11.74.A Plexiform Neurofibromas prevalence and treatment modalities in a referral comprehensive cancer center. Neuro Oncol 2022. [DOI: 10.1093/neuonc/noac174.263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Neurofibromatosis type 1 (NF1) is the most common tumor predisposition syndrome, with an incidence of 1/3500. Plexiform neurofibromas (PN) are benign tumors that can occur along the nerve sheath throughout the body, with unpredictable growth and with risk of malignant transformation. Symptoms will depend on their size and location, and include pain, deformity and functional impairment. There is a great variability in the PN severity and impact on quality-of-life (QOL). An unknown percentage of NF1 patients may need treatment, either medical and/or surgical.
Objectives
To assess the frequency of PN in a NF1 population followed in a comprehensive cancer center.
Material and Methods
Retrospective study. All patients with NF1 and PN followed in our center, between 31/12/2000 and 31/12/2021.
Results
Of 438 NF1 patients, 185 had PN (42%). 52 NF1 patients with PN were children (≤ 18). The most common symptoms were pain in 71 people (38,4%), deformity in 70 (37,8%) and functional impairment in 69 (37,3%). Several patients had a combination of these symptoms. Different treatment modalities were used for PN: medical, surgical or both. In this study, 54 patients (29,1%) were treated with MEK inhibitors (selumetinib), 74 patients (40%) were treated surgically and 12,4% (23) needed a combined approach (medical and surgical treatment).
Conclusion
PN are frequent in NF1 patients. A significant percentage is symptomatic and will require treatment, surgical, medical or both. There is no standard of care for PN NF1. The timing and sequence of medical and surgical treatment is yet to be defined.
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Affiliation(s)
- M Ferreira
- Lisbon Portuguese Institute of Oncology , Lisbon , Portugal
| | - J Costa
- Lisbon Portuguese Institute of Oncology , Lisbon , Portugal
| | - D Antão
- Lisbon Portuguese Institute of Oncology , Lisbon , Portugal
| | - E Silva
- Lisbon Portuguese Institute of Oncology , Lisbon , Portugal
| | - J Passos
- Lisbon Portuguese Institute of Oncology , Lisbon , Portugal
| | - M Vilares
- Lisbon Portuguese Institute of Oncology , Lisbon , Portugal
| | - H Vasques
- Lisbon Portuguese Institute of Oncology , Lisbon , Portugal
| | - I Patrocínio
- Lisbon Portuguese Institute of Oncology , Lisbon , Portugal
| | - C Silva
- Lisbon Portuguese Institute of Oncology , Lisbon , Portugal
| | - F Santos
- Lisbon Portuguese Institute of Oncology , Lisbon , Portugal
| | - D Salgado
- Lisbon Portuguese Institute of Oncology , Lisbon , Portugal
| | - M Lacerda
- Lisbon Portuguese Institute of Oncology , Lisbon , Portugal
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Vasconcelos A, Fonseca A, Coutinho D, Dias M, Silva E, Campainha S, Barroso A. EP04.01-003 Is It Time for a New Paradigm in Care of Young Cancer Patients? A Retrospective Study. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.415] [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: 10/14/2022]
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13
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Fonseca A, Silva E, Coutinho D, Campainha S, Dias M, Barroso A. EP08.01-008 Immune Checkpoint Inhibitors in Oncogenic Driven Non-small Cell Lung Cancer. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.580] [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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14
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Gomes S, Teixeira-Guedes C, Silva E, Baltazar F, Preto A. Colon microbiota modulation by dairy-derived diet: new strategy for prevention and treatment of colorectal cancer. Food Funct 2022; 13:9183-9194. [PMID: 35996962 DOI: 10.1039/d2fo01720b] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
An unbalanced diet is one of the well-known risk factors for the development of colorectal cancer (CRC). This type of cancer is currently the main cause of cancer-related deaths worldwide, urging the need for new and more effective preventive and therapeutic approaches. It is already known that CRC patients have alterations in the microbial community and metabolism. In this regard, a concept that has been recently attracting the attention of the scientific community is the development of functional food or nutraceuticals, as a new and more effective strategy to overcome CRC patient-associated dysbiosis. Particularly, dairy product enriched diets are the major dairy source of dietary calcium, vitamin D and folate intake, which are well-known to have a protective effect against CRC development. In addition, these products are rich in both pre- and probiotics, constituting a double strategy to modulate both the intestinal microbiota composition and the production of microbial metabolites. Short-chain fatty acids (SCFA), namely, acetate, butyrate, and propionate, are major contributors to colonic homeostasis since they regulate several biological and metabolic processes. In this review, we performed a state of art study concerning the use of dietary patterns, specifically the dairy-derived diet, in the modulation of the human microbiota and their potential use as pre-, pro- or synbiotics for the development of new preventive and therapeutic strategies for CRC.
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Affiliation(s)
- Sara Gomes
- CBMA - Centre of Molecular and Environmental Biology. Department of Biology, University of Minho, Braga, Portugal. .,IBS - Institute of Science and Innovation for Bio-Sustainability, University of Minho, Braga, Portugal.,ICVS - Life and Health Sciences Research Institute, School of Medicine, University of Minho, Braga, Portugal.,Department of Life Sciences, Brunel University (BU), London, UK
| | - Catarina Teixeira-Guedes
- CBMA - Centre of Molecular and Environmental Biology. Department of Biology, University of Minho, Braga, Portugal. .,IBS - Institute of Science and Innovation for Bio-Sustainability, University of Minho, Braga, Portugal.,CITAB - Centre for the Research and Technology of Agro-Environmental and Biological Sciences, University of Trás dos Montes and Alto Douro, Vila Real, Portugal
| | - Elisabete Silva
- Department of Life Sciences, Brunel University (BU), London, UK
| | - Fátima Baltazar
- ICVS - Life and Health Sciences Research Institute, School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Ana Preto
- CBMA - Centre of Molecular and Environmental Biology. Department of Biology, University of Minho, Braga, Portugal. .,IBS - Institute of Science and Innovation for Bio-Sustainability, University of Minho, Braga, Portugal
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15
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Silva E, Tome I, Vasques-Novoa F, Silva A, Conceicao G, Miranda-Silva D, Pitrez P, Barros A, Leite-Moreira A, Pinto-Do-O P, Santos S, Pires IF, Ferreira L, Nascimento D. Pharmacological Targeting of Senescence with ABT-263 in Experimental Heart Failure with Preserved Ejection Fraction. Cardiovasc Res 2022. [DOI: 10.1093/cvr/cvac066.107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): Fundação Ciência e Tecnlogia
HFpEF is the most common form of heart disease in the elderly and is associated with high morbidity and mortality. Our understanding of HFpEF pathophysiology is limited and development of efficient therapies that alter the clinical course of the disease has proved greatly challenging. Although aging is a risk factor of HFpEF1, the involvement of aging hallmarks such as cell senescent and immunosenescence is unclear. Recently, a link between endothelial senescence and HFpEF development was demonstrated in mice with accelerated aging [1], endorsing anti-aging pharmacologic as potential new therapeutic alternatives for HFpEF. In fact, the senolytic (drugs that selectively promote apoptosis of senescent cells) ABT-263 has already proven efficacy in the context of cardiovascular diseases. Further studies are needed to clarify the relevance of aging and of anti-aging therapies in the context of HFpEF.
Using ZSF1 obese rats (ZSF1-Ob) as model of HFpEF we showed from 18 weeks signs of immunosenescence compared to ZSF1-Ln, namely an increased frequency of circulating myeloid cells and decreased frequency of T and B cells. Concomitantly, expression of pro-inflammatory factors (IL-6, IL-1, TGF-β, TNF-α) was upregulated in peripheral blood mononuclear cells (PBMCs) of ZSF1-Ob which also displayed characteristic features of cell senescence (p21 expression, lysosomal endogenous Beta-galactosidase (SA-B-Gal) senescence-associated secretory phenotype (SASP) and up-regulation of BCL-XL. Importantly, no signs of cellular senescence (SA-B-gal, pH2AX and senescence associated pathways) were found in the main hematopoietic organs (spleen and bone marrow). Alongside, these systemic alterations, an upsurge of cellular senescence was observed in myocardium of ZSF1-Ob rats, particularly in endothelial and hematopoietic cells. Serum of ZSF1-Ob rat was able to induce activation and cellular senescence of cardiac microvascular endothelial cells, indicating that systemic circulating factors may be the upstream mechanism of cellular senescence and dysfunction in HFpEF. Analysis of HFpEF patients and a control cohort adjusted to main co-morbidities further demonstrated accumulation of senescent monocytes in HFpEF patients. In these patients, the senescence marker SA-B-Gal correlated with plasmatic brain natriuretic peptide (BNP) levels and pulmonary artery systolic pressure. Targeting aging hallmarks through the treatment of ZSF1-Ob rat with ABT-263 resulted in a reduction in circulating senescent cells, decreased systemic and local inflammation, re-established immune proportions, restore the levels of circulating BNP and attenuated myocardial remodeling, particularly endothelial dysfunction and fibrosis.
Collectively these findings support that premature cellular senescence contributes to the establishment of a deleterious pro-inflammatory environment in HFpEF and that senolytic agents hold promise for the treatment of this syndrome.
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Affiliation(s)
- E Silva
- I3s (Institute for Research and Innovation in Health) , Porto , Portugal
| | - I Tome
- University of Coimbra, Biocant , Coimbra , Portugal
| | | | - A Silva
- I3s (Institute for Research and Innovation in Health) , Porto , Portugal
| | - G Conceicao
- Faculty of Medicine University of Porto , Porto , Portugal
| | | | - P Pitrez
- University of Coimbra, Biocant , Coimbra , Portugal
| | - A Barros
- Faculty of Medicine University of Porto , Porto , Portugal
| | | | - P Pinto-Do-O
- I3s (Institute for Research and Innovation in Health) , Porto , Portugal
| | - S Santos
- I3s (Institute for Research and Innovation in Health) , Porto , Portugal
| | - IF Pires
- Faculty of Medicine University of Porto , Porto , Portugal
| | - L Ferreira
- University of Coimbra, Biocant , Coimbra , Portugal
| | - D Nascimento
- I3s (Institute for Research and Innovation in Health) , Porto , Portugal
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16
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Duarte AM, Silva F, Mendes S, Pinto FR, Barroso S, Silva E, Neves A, Sequeira V, Magalhães M, Rebelo R, Assis C, Vieira AR, Gordo LS, Gil MM. Seasonal study of the nutritional composition of unexploited and low commercial value fish species from the Portuguese coast. Food Sci Nutr 2022; 10:3368-3379. [PMID: 36249977 PMCID: PMC9548369 DOI: 10.1002/fsn3.2937] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 05/09/2022] [Accepted: 05/12/2022] [Indexed: 11/09/2022] Open
Affiliation(s)
- Ana M. Duarte
- MARE – Marine and Environmental Sciences Centre Polytechnic of Leiria Peniche Portugal
| | - Frederica Silva
- MARE – Marine and Environmental Sciences Centre Polytechnic of Leiria Peniche Portugal
- MARE – Marine and Environmental Sciences Centre, Faculdade de Ciências Universidade de Lisboa Lisbon Portugal
| | - Susana Mendes
- MARE – Marine and Environmental Sciences Centre ESTM, Polytechnic of Leiria Peniche Portugal
| | - Filipa R. Pinto
- MARE – Marine and Environmental Sciences Centre Polytechnic of Leiria Peniche Portugal
| | - Sónia Barroso
- MARE – Marine and Environmental Sciences Centre Polytechnic of Leiria Peniche Portugal
| | - Elisabete Silva
- MARE – Marine and Environmental Sciences Centre, Faculdade de Ciências Universidade de Lisboa Lisbon Portugal
| | - Ana Neves
- MARE – Marine and Environmental Sciences Centre, Faculdade de Ciências Universidade de Lisboa Lisbon Portugal
| | - Vera Sequeira
- MARE – Marine and Environmental Sciences Centre, Faculdade de Ciências Universidade de Lisboa Lisbon Portugal
- Departamento de Biologia Animal, Faculdade de Ciências Universidade de Lisboa Lisbon Portugal
| | - Maria Filomena Magalhães
- Departamento de Biologia Animal, Faculdade de Ciências Universidade de Lisboa Lisbon Portugal
- CE3C – Centre for Ecology, Evolution and Environmental Changes Faculdade de Ciências, Universidade de Lisboa Lisbon Portugal
| | - Rui Rebelo
- Departamento de Biologia Animal, Faculdade de Ciências Universidade de Lisboa Lisbon Portugal
- CE3C – Centre for Ecology, Evolution and Environmental Changes Faculdade de Ciências, Universidade de Lisboa Lisbon Portugal
| | - Carlos Assis
- MARE – Marine and Environmental Sciences Centre, Faculdade de Ciências Universidade de Lisboa Lisbon Portugal
- Departamento de Biologia Animal, Faculdade de Ciências Universidade de Lisboa Lisbon Portugal
| | - Ana Rita Vieira
- MARE – Marine and Environmental Sciences Centre, Faculdade de Ciências Universidade de Lisboa Lisbon Portugal
- Departamento de Biologia Animal, Faculdade de Ciências Universidade de Lisboa Lisbon Portugal
| | - Leonel Serrano Gordo
- MARE – Marine and Environmental Sciences Centre, Faculdade de Ciências Universidade de Lisboa Lisbon Portugal
- Departamento de Biologia Animal, Faculdade de Ciências Universidade de Lisboa Lisbon Portugal
| | - Maria Manuel Gil
- MARE – Marine and Environmental Sciences Centre ESTM, Polytechnic of Leiria Peniche Portugal
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Pereira G, Guo Y, Silva E, Silva MF, Bevilacqua C, Charpigny G, Lopes-da-Costa L, Humblot P. Subclinical endometritis differentially affects the transcriptomic profiles of endometrial glandular, luminal, and stromal cells of postpartum dairy cows. J Dairy Sci 2022; 105:6125-6143. [DOI: 10.3168/jds.2022-21811] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 04/05/2022] [Indexed: 01/17/2023]
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18
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Cardoso A, Silva E, Anacleto S, Hernández-Arriaga A, Camarinha-Silva A, M. Silva J, Barros A, L. Reis R, Lima E, Mota P. Double-J ureteral stents incrustation pattern characterization on scanning electron microscope. EUR UROL SUPPL 2022. [DOI: 10.1016/s2666-1683(22)00166-5] [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: 10/18/2022] Open
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19
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Shams S, Stilhano R, Silva E. Gene Editing/Gene Therapies: LOCALIZED PROANGIOGENIC CASCADE ACTIVATION VIA EGLN1 KNOCKOUT BY PROTEIN SPCAS9 VLPS. Cytotherapy 2022. [DOI: 10.1016/s1465-3249(22)00364-4] [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: 11/27/2022]
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20
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Mendes S, Sá R, Magalhães M, Marques F, Sousa M, Silva E. The Role of ROS as a Double-Edged Sword in (In)Fertility: The Impact of Cancer Treatment. Cancers (Basel) 2022; 14:cancers14061585. [PMID: 35326736 PMCID: PMC8946252 DOI: 10.3390/cancers14061585] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 03/17/2022] [Accepted: 03/18/2022] [Indexed: 12/22/2022] Open
Abstract
Simple Summary Tumor cells are highly resistant to oxidative stress, but beyond a certain threshold, it may lead to apoptosis/necrosis. Thus, induced loss of redox balance can be a strategy used in anticancer therapies. However, the effectiveness of drugs contrasts with unknown mechanisms involved in the loss of fertility. Considering that cancer patients’ life expectancy is increasing, it raises concerns about the unknown adverse effects. Therefore, new strategies should be pursued alongside explaining to the patients their options regarding the reproduction side effects. Abstract Tumor cells are highly resistant to oxidative stress resulting from the imbalance between high reactive oxygen species (ROS) production and insufficient antioxidant defenses. However, when intracellular levels of ROS rise beyond a certain threshold, largely above cancer cells’ capacity to reduce it, they may ultimately lead to apoptosis or necrosis. This is, in fact, one of the molecular mechanisms of anticancer drugs, as most chemotherapeutic treatments alter redox homeostasis by further elevation of intracellular ROS levels or inhibition of antioxidant pathways. In traditional chemotherapy, it is widely accepted that most therapeutic effects are due to ROS-mediated cell damage, but in targeted therapies, ROS-mediated effects are mostly unknown and data are still emerging. The increasing effectiveness of anticancer treatments has raised new challenges, especially in the field of reproduction. With cancer patients’ life expectancy increasing, many aiming to become parents will be confronted with the adverse effects of treatments. Consequently, concerns about the impact of anticancer therapies on reproductive capacity are of particular interest. In this review, we begin with a short introduction on anticancer therapies, then address ROS physiological/pathophysiological roles in both male and female reproductive systems, and finish with ROS-mediated adverse effects of anticancer treatments in reproduction.
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Affiliation(s)
- Sara Mendes
- Department of Physical Education and Sports, University Institute of Maia (ISMAI), 4475-690 Maia, Portugal;
- Research Center in Sports Sciences, Health Sciences and Human Development (CIDESD), 5001-801 Vila Real, Portugal
| | - Rosália Sá
- Laboratory of Cell Biology, Department of Microscopy, Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal; (R.S.); (M.S.)
- Unit for Multidisciplinary Research in Biomedicine (UMIB), Laboratory for Integrative and Translational Research in Population Health (ITR), University of Porto, 4099-002 Porto, Portugal;
| | - Manuel Magalhães
- Unit for Multidisciplinary Research in Biomedicine (UMIB), Laboratory for Integrative and Translational Research in Population Health (ITR), University of Porto, 4099-002 Porto, Portugal;
- Department of Oncology, University Hospital Center of Porto (CHUP), Largo do Prof. Abel Salazar, 4099-001 Porto, Portugal;
| | - Franklim Marques
- Department of Oncology, University Hospital Center of Porto (CHUP), Largo do Prof. Abel Salazar, 4099-001 Porto, Portugal;
| | - Mário Sousa
- Laboratory of Cell Biology, Department of Microscopy, Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal; (R.S.); (M.S.)
- Unit for Multidisciplinary Research in Biomedicine (UMIB), Laboratory for Integrative and Translational Research in Population Health (ITR), University of Porto, 4099-002 Porto, Portugal;
| | - Elisabete Silva
- Laboratory of General Physiology, Department of Immuno-Physiology and Pharmacology, Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
- Institute for Molecular and Cell Biology (IBMC), Institute for Research & Innovation in Health (I3S), University of Porto, Rua Alfredo Allen, 4200-135 Porto, Portugal
- Correspondence:
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21
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Filipe A, Katopodis P, Chudasama D, Kerslake R, Jeyaneethi J, Anikin V, Silva E, Kyrou I, Randeva HS, Sisu C, Hall M, Karteris E. Differential Expression of RAD51AP1 in Ovarian Cancer: Effects of siRNA In Vitro. J Pers Med 2022; 12:jpm12020201. [PMID: 35207688 PMCID: PMC8876735 DOI: 10.3390/jpm12020201] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Revised: 01/08/2022] [Accepted: 01/25/2022] [Indexed: 11/16/2022] Open
Abstract
Background: DNA double strand breaks can affect genome integrity potentially leading to cancer. RAD51-associated protein 1 (RAD51AP1), an accessory protein to RAD51, is critical for homologous recombination, a key DNA damage response pathway. Emerging studies indicate a novel role for RAD51AP1 in carcinogenesis. Here we provide additional insight into the role of RAD51AP1 in ovarian cancer (OvCa). Methods: Gene expression and patient phenotype data were obtained from TCGA and GTEX project consortia for bioinformatics analysis. Immunohistochemistry of OvCa tissue microarray was undertaken. Functional analyses were performed in a SKOV3 OvCa cell line with down-regulation of RAD51AP1 using siRNA. Results: RAD51AP1 is overexpressed at gene level in primary and recurrent OvCa compared to controls. At protein level, RAD51AP1 was up-regulated in low grade serous tumors compared to high grade OvCa. There was higher expression of RAD51AP1 in OvCa metastatic to lymph nodes compared to primary cancer samples. Gene enrichment analyses identified 12 differentially expressed genes (DEGs) related to OvCa, eight of which are also common in tissue from patients with type 2 diabetes mellitus (T2DM). Conclusions: RAD51AP1 is overexpressed in OvCa, Given the link between OvCa and T2DM, the eight-gene signature shows potential for predictive value.
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Affiliation(s)
- Alice Filipe
- Department of Life Sciences, Division of Biosciences, College of Health, Medicine and Life Sciences, Brunel University London, Uxbridge UB8 3PH, UK; (A.F.); (P.K.); (D.C.); (R.K.); (J.J.); (E.S.); (C.S.)
| | - Periklis Katopodis
- Department of Life Sciences, Division of Biosciences, College of Health, Medicine and Life Sciences, Brunel University London, Uxbridge UB8 3PH, UK; (A.F.); (P.K.); (D.C.); (R.K.); (J.J.); (E.S.); (C.S.)
- Division of Thoracic Surgery, The Royal Brompton & Harefield NHS Foundation Trust, Harefield Hospital, Harefield UB9 6JH, UK;
| | - Dimple Chudasama
- Department of Life Sciences, Division of Biosciences, College of Health, Medicine and Life Sciences, Brunel University London, Uxbridge UB8 3PH, UK; (A.F.); (P.K.); (D.C.); (R.K.); (J.J.); (E.S.); (C.S.)
| | - Rachel Kerslake
- Department of Life Sciences, Division of Biosciences, College of Health, Medicine and Life Sciences, Brunel University London, Uxbridge UB8 3PH, UK; (A.F.); (P.K.); (D.C.); (R.K.); (J.J.); (E.S.); (C.S.)
- Division of Thoracic Surgery, The Royal Brompton & Harefield NHS Foundation Trust, Harefield Hospital, Harefield UB9 6JH, UK;
| | - Jeyarooban Jeyaneethi
- Department of Life Sciences, Division of Biosciences, College of Health, Medicine and Life Sciences, Brunel University London, Uxbridge UB8 3PH, UK; (A.F.); (P.K.); (D.C.); (R.K.); (J.J.); (E.S.); (C.S.)
- Division of Thoracic Surgery, The Royal Brompton & Harefield NHS Foundation Trust, Harefield Hospital, Harefield UB9 6JH, UK;
| | - Vladimir Anikin
- Division of Thoracic Surgery, The Royal Brompton & Harefield NHS Foundation Trust, Harefield Hospital, Harefield UB9 6JH, UK;
- Department of Oncology and Reconstructive Surgery, Sechenov First Moscow State, Medical University, 119146 Moscow, Russia
| | - Elisabete Silva
- Department of Life Sciences, Division of Biosciences, College of Health, Medicine and Life Sciences, Brunel University London, Uxbridge UB8 3PH, UK; (A.F.); (P.K.); (D.C.); (R.K.); (J.J.); (E.S.); (C.S.)
| | - Ioannis Kyrou
- Warwickshire Institute for the Study of Diabetes, Endocrinology and Metabolism (WISDEM), University Hospitals Coventry and Warwickshire NHS Trust, Coventry CV2 2DX, UK; (I.K.); (H.S.R.)
- Warwick Medical School, University of Warwick, Coventry CV4 7AL, UK
- Centre for Sport, Exercise and Life Sciences, Research Institute for Health & Wellbeing, Coventry University, Coventry CV1 5FB, UK
- Aston Medical Research Institute, Aston Medical School, College of Health and Life Sciences, Aston University, Birmingham B4 7ET, UK
- Department of Food Science & Human Nutrition, School of Food and Nutritional Sciences, Agricultural University of Athens, 11855 Athens, Greece
| | - Harpal S. Randeva
- Warwickshire Institute for the Study of Diabetes, Endocrinology and Metabolism (WISDEM), University Hospitals Coventry and Warwickshire NHS Trust, Coventry CV2 2DX, UK; (I.K.); (H.S.R.)
- Warwick Medical School, University of Warwick, Coventry CV4 7AL, UK
| | - Cristina Sisu
- Department of Life Sciences, Division of Biosciences, College of Health, Medicine and Life Sciences, Brunel University London, Uxbridge UB8 3PH, UK; (A.F.); (P.K.); (D.C.); (R.K.); (J.J.); (E.S.); (C.S.)
| | - Marcia Hall
- Department of Life Sciences, Division of Biosciences, College of Health, Medicine and Life Sciences, Brunel University London, Uxbridge UB8 3PH, UK; (A.F.); (P.K.); (D.C.); (R.K.); (J.J.); (E.S.); (C.S.)
- Mount Vernon Cancer Centre, Northwood, London HA6 2RN, UK
- Correspondence: (M.H.); (E.K.)
| | - Emmanouil Karteris
- Department of Life Sciences, Division of Biosciences, College of Health, Medicine and Life Sciences, Brunel University London, Uxbridge UB8 3PH, UK; (A.F.); (P.K.); (D.C.); (R.K.); (J.J.); (E.S.); (C.S.)
- Division of Thoracic Surgery, The Royal Brompton & Harefield NHS Foundation Trust, Harefield Hospital, Harefield UB9 6JH, UK;
- Correspondence: (M.H.); (E.K.)
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22
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Pereira G, Guo Y, Silva E, Bevilacqua C, Charpigny G, Lopes-da-Costa L, Humblot P. Progesterone differentially affects the transcriptomic profiles of cow endometrial cell types. BMC Genomics 2022; 23:82. [PMID: 35086476 PMCID: PMC8793221 DOI: 10.1186/s12864-022-08323-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 01/20/2022] [Indexed: 01/04/2023] Open
Abstract
Background The endometrium is a heterogeneous tissue composed of luminal epithelial (LE), glandular epithelial (GE), and stromal cells (ST), experiencing progesterone regulated dynamic changes during the estrous cycle. In the cow, this regulation at the transcriptomic level was only evaluated in the whole tissue. This study describes specific gene expression in the three types of cells isolated from endometrial biopsies following laser capture microdissection and the transcriptome changes induced by progesterone in GE and ST cells. Results Endometrial LE, GE, and ST cells show specific transcriptomic profiles. Most of the differentially expressed genes (DEGs) in response to progesterone are cell type-specific (96%). Genes involved in cell cycle and nuclear division are under-expressed in the presence of progesterone in GE, highlighting the anti-proliferative action of progesterone in epithelial cells. Elevated progesterone concentrations are also associated with the under-expression of estrogen receptor 1 (ESR1) in GE and oxytocin receptor (OXTR) in GE and ST cells. In ST cells, transcription factors such as SOX17 and FOXA2, known to regulate uterine epithelial-stromal cross-talk conveying to endometrial receptivity, are over-expressed under progesterone influence. Conclusions The results from this study show that progesterone regulates endometrial function in a cell type-specific way, which is independent of the expression of its main receptor PGR. These novel insights into uterine physiology present the cell compartment as the physiological unit rather than the whole tissue. Supplementary Information The online version contains supplementary material available at 10.1186/s12864-022-08323-z.
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Affiliation(s)
- Gonçalo Pereira
- CIISA-Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Avenida da Universidade Técnica, 1300-477, Lisbon, Portugal
| | - Yongzhi Guo
- Department of Clinical Sciences, Swedish University of Agricultural Sciences, SLU, PO Box 7054, 750 07, Uppsala, Sweden
| | - Elisabete Silva
- CIISA-Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Avenida da Universidade Técnica, 1300-477, Lisbon, Portugal
| | - Claudia Bevilacqua
- Université Paris-Saclay, INRAE, AgroParisTech, GABI, 78350, Jouy-en-Josas, France
| | - Gilles Charpigny
- Université Paris-Saclay, INRAE, ENVA, BREED, 78350, Jouy-en-Josas, France
| | - Luís Lopes-da-Costa
- CIISA-Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Avenida da Universidade Técnica, 1300-477, Lisbon, Portugal.
| | - Patrice Humblot
- Department of Clinical Sciences, Swedish University of Agricultural Sciences, SLU, PO Box 7054, 750 07, Uppsala, Sweden
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23
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Neto da Silva AC, Costa AL, Teixeira A, Alpoim-Moreira J, Fernandes C, Fradinho MJ, Rebordão MR, Silva E, Ferreira da Silva J, Bliebernicht M, Alexandre-Pires G, Ferreira-Dias G. Collagen and Microvascularization in Placentas From Young and Older Mares. Front Vet Sci 2022; 8:772658. [PMID: 35059454 PMCID: PMC8764314 DOI: 10.3389/fvets.2021.772658] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Accepted: 12/02/2021] [Indexed: 12/24/2022] Open
Abstract
In older mares, increasing collagen fibers (fibrosis) in the endometrium and oviduct predisposes to sub-fertility and infertility. In this study, (i) gene transcription of collagen (qPCR: COL1A1, COL1A2, COL3A1, COL5A1); (ii) total collagen protein (hydroxyproline); (iii) collagen distribution (Picrosirius red staining; polarized light microscopy); and (iv) microvascular density (Periodic acid-Schiff staining), were evaluated in mares' placenta, and related to mares age, and placenta and neonate weights. Samples were collected from the gravid horn, non-gravid horn, and body of the placenta from younger (n = 7), and older mares (n = 9) of different breeds. Transcripts of COL1A1, COL3A1 and COL5A1, total collagen protein, chorionic plate connective tissue thickness, and microvascularization increased in the gravid horn of older mares' placentas, compared to the youngest (P < 0.05). Although in other species placenta fibrosis may indicate placental insufficiency and reduced neonate weight, this was not observed here. It appears that older fertile mares, with more parities, may develop a heavier, more vascularized functional placenta with more collagen, throughout a longer gestation, which enables the delivery of heavier foals. Thus, these features might represent morphological and physiological adaptations of older fertile mares' placentas to provide the appropriate nutrition to the equine fetus.
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Affiliation(s)
- Ana Catarina Neto da Silva
- Faculdade de Medicina Veterinária, CIISA - Centro de Investigação Interdisciplinar em Sanidade Animal, Universidade de Lisboa, Lisboa, Portugal
| | | | - Ana Teixeira
- Pole Reprodución Haras de La Gesse, Boulogne-sur-Gesse, France
| | - Joana Alpoim-Moreira
- Faculdade de Medicina Veterinária, CIISA - Centro de Investigação Interdisciplinar em Sanidade Animal, Universidade de Lisboa, Lisboa, Portugal
| | - Carina Fernandes
- Faculdade de Medicina Veterinária, CIISA - Centro de Investigação Interdisciplinar em Sanidade Animal, Universidade de Lisboa, Lisboa, Portugal
| | - Maria João Fradinho
- Faculdade de Medicina Veterinária, CIISA - Centro de Investigação Interdisciplinar em Sanidade Animal, Universidade de Lisboa, Lisboa, Portugal
| | - Maria Rosa Rebordão
- Faculdade de Medicina Veterinária, CIISA - Centro de Investigação Interdisciplinar em Sanidade Animal, Universidade de Lisboa, Lisboa, Portugal.,Coimbra College of Agriculture, Polytechnic Institute of Coimbra, Coimbra, Portugal
| | - Elisabete Silva
- Faculdade de Medicina Veterinária, CIISA - Centro de Investigação Interdisciplinar em Sanidade Animal, Universidade de Lisboa, Lisboa, Portugal
| | - José Ferreira da Silva
- Faculdade de Medicina Veterinária, CIISA - Centro de Investigação Interdisciplinar em Sanidade Animal, Universidade de Lisboa, Lisboa, Portugal
| | | | - Graça Alexandre-Pires
- Faculdade de Medicina Veterinária, CIISA - Centro de Investigação Interdisciplinar em Sanidade Animal, Universidade de Lisboa, Lisboa, Portugal
| | - Graça Ferreira-Dias
- Faculdade de Medicina Veterinária, CIISA - Centro de Investigação Interdisciplinar em Sanidade Animal, Universidade de Lisboa, Lisboa, Portugal
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24
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Silva E, Diniz P, Trindade A, Batista M, Torres A, Duarte A, Lopes-da-Costa L. Immunolocalization of Notch Signaling in Mouse Preimplantation Embryos. Methods Mol Biol 2022; 2472:173-185. [PMID: 35674900 DOI: 10.1007/978-1-0716-2201-8_14] [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: 06/15/2023]
Abstract
The Notch signaling pathway is an important determinant of cell diversity and identity in most developing embryonic tissues. The pathway components are expressed dynamically, and their function is critical for embryonic survival.This protocol addresses the immunolocalization of Notch pathway components by confocal microscopy.
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Affiliation(s)
- Elisabete Silva
- Reproduction and Development Laboratory, CIISA - Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Avenida da Universidade Técnica, Lisbon, Portugal
| | - Patrícia Diniz
- Reproduction and Development Laboratory, CIISA - Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Avenida da Universidade Técnica, Lisbon, Portugal
| | - Alexandre Trindade
- Reproduction and Development Laboratory, CIISA - Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Avenida da Universidade Técnica, Lisbon, Portugal.
- Centro de Investigação Interdisciplinar Egas Moniz (CiiEM), Instituto Universitário Egas Moniz, Egas Moniz - Cooperativa de Ensino Superior, Crl, Quinta da Granja, Monte da Caparica, Portugal.
| | - Mariana Batista
- Reproduction and Development Laboratory, CIISA - Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Avenida da Universidade Técnica, Lisbon, Portugal
- FMV-ULHT - Faculdade de Medicina Veterinária, Universidade Lusófona de Humanidades e Tecnologias, Lisbon, Portugal
| | - Ana Torres
- Reproduction and Development Laboratory, CIISA - Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Avenida da Universidade Técnica, Lisbon, Portugal
| | - António Duarte
- Reproduction and Development Laboratory, CIISA - Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Avenida da Universidade Técnica, Lisbon, Portugal
| | - Luís Lopes-da-Costa
- Reproduction and Development Laboratory, CIISA - Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Avenida da Universidade Técnica, Lisbon, Portugal
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25
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Martins S, Cardona L, Abella E, Silva E, Loureiro N, Roast M, Marco A. Effect of body size on the long-term reproductive output of East Atlantic loggerhead turtles Caretta caretta. ENDANGER SPECIES RES 2022. [DOI: 10.3354/esr01198] [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: 11/23/2022] Open
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26
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De la Cruz A, Bastos R, Silva E, Cabral JA, Santos M. What to expect from alternative management strategies to conserve seabirds? Hints from a dynamic modelling framework applied to an endangered population. Anim Conserv 2021. [DOI: 10.1111/acv.12751] [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: 11/28/2022]
Affiliation(s)
- A. De la Cruz
- Marine Research University Institute (INMAR) Campus of International Excellence of the Sea (CEIMAR) University of Cádiz Cádiz Spain
| | - R. Bastos
- Laboratory of Applied Ecology CITAB – Centre for the Research and Technology of Agro‐Environment and Biological Services Institute for Innovation Capacity Building and Sustainability of Agri‐food Production (Inov4Agro) University of Trás‐os‐Montes e Alto Douro Vila Real Portugal
| | - E. Silva
- Portuguese Society for the Study of Birds (SPEA) Lisboa Portugal
| | - J. A. Cabral
- Laboratory of Applied Ecology CITAB – Centre for the Research and Technology of Agro‐Environment and Biological Services Institute for Innovation Capacity Building and Sustainability of Agri‐food Production (Inov4Agro) University of Trás‐os‐Montes e Alto Douro Vila Real Portugal
| | - M. Santos
- Laboratory of Applied Ecology CITAB – Centre for the Research and Technology of Agro‐Environment and Biological Services Institute for Innovation Capacity Building and Sustainability of Agri‐food Production (Inov4Agro) University of Trás‐os‐Montes e Alto Douro Vila Real Portugal
- Laboratory of Ecology and Conservation Federal Institute of Education Science and Technology of Maranhão, R. Dep. Gastão Vieira Buriticupu MA Brazil
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27
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Pereira G, Simões P, Bexiga R, Silva E, Mateus L, Fernandes T, Alves SP, Bessa RJB, Lopes-da-Costa L. Effects of feeding rumen-protected linseed fat to postpartum dairy cows on plasma n-3 polyunsaturated fatty acid concentrations and metabolic and reproductive parameters. J Dairy Sci 2021; 105:361-374. [PMID: 34635360 DOI: 10.3168/jds.2021-20674] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Accepted: 08/28/2021] [Indexed: 12/30/2022]
Abstract
High-yielding dairy cows experience a negative energy balance and inflammatory status during the transition period. Fat supplementation increases diet energy density, and plasma n-3 polyunsaturated fatty acids (PUFA) have been proposed to improve immune function. This study tested the hypothesis that dietary supplementation with a rumen-protected and n-3 PUFA-enriched fat could ameliorate both the energetic deficit and immune status of postpartum high-yielding dairy cows, improving overall health and reproductive efficiency. At 11 d in milk (DIM), cows were randomly allocated to groups (1) n-3 PUFA (n = 29), supplemented with encapsulated linseed oil supplying additional up to 64 g/d (mean 25 ± 4 g/d) of α-linolenic acid (ALA), or (2) control (n = 31), supplemented with hydrogenated palm oil without ALA content. Fat supplements of the n-3 PUFA and control groups were available through an automated, off-parlor feeding system, and intake depended on the cow's feeding behavior. Plasma ALA concentrations were higher in n-3 PUFA than control cows, following a linear relation with supplement ingestion, resulting in a lower n-6/n-3 ratio in plasma. Metabolic parameters (body condition score and glucose and β-hydroxybutyric acid blood concentrations) were unaffected, but milk yield improved with increased intake of fat supplements. Plasma total adiponectin concentrations were negatively correlated with ingestion of n-3 PUFA-enriched fat supplement, following a linear relation with intake. Conception rate to first AI increased with higher intake of both fats, but a decrease of calving-to-conception interval occurred only in n-3 PUFA cows. Postpartum ovarian activity and endometrial inflammatory status at 45 DIM were unaffected. In conclusion, this study evinced a positive linear relation between rumen-protected linseed fat intake and plasma n-3 PUFA concentrations, which modulated adiponectin expression and improved reproductive parameters.
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Affiliation(s)
- Gonçalo Pereira
- CIISA-Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Avenida da Universidade Técnica, 1300-477 Lisboa, Portugal
| | - Patrícia Simões
- CIISA-Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Avenida da Universidade Técnica, 1300-477 Lisboa, Portugal
| | - Ricardo Bexiga
- CIISA-Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Avenida da Universidade Técnica, 1300-477 Lisboa, Portugal
| | - Elisabete Silva
- CIISA-Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Avenida da Universidade Técnica, 1300-477 Lisboa, Portugal
| | - Luisa Mateus
- CIISA-Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Avenida da Universidade Técnica, 1300-477 Lisboa, Portugal
| | - Tatiane Fernandes
- CIISA-Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Avenida da Universidade Técnica, 1300-477 Lisboa, Portugal
| | - Susana P Alves
- CIISA-Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Avenida da Universidade Técnica, 1300-477 Lisboa, Portugal
| | - Rui J B Bessa
- CIISA-Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Avenida da Universidade Técnica, 1300-477 Lisboa, Portugal
| | - Luis Lopes-da-Costa
- CIISA-Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Avenida da Universidade Técnica, 1300-477 Lisboa, Portugal.
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28
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Neves A, Sousa I, Sequeira V, Vieira AR, Silva E, Silva F, Duarte AM, Mendes S, Ganhão R, Assis C, Rebelo R, Magalhães MF, Gil MM, Gordo LS. Enhancing knowledge on low-value fishing species: the distinct reproductive strategy of two gurnard species. J Fish Biol 2021; 99:1403-1414. [PMID: 34254304 DOI: 10.1111/jfb.14849] [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: 04/28/2021] [Revised: 06/24/2021] [Accepted: 07/09/2021] [Indexed: 06/13/2023]
Abstract
The depletion and overexploitation of several fish stock demands for a valorisation of non-target and discarded species. Nonetheless, such species are often poorly studied, and information on their biological parameters must be gathered for effective population management. For 1 year, the reproductive strategy of the piper gurnard Trigla lyra and the red gurnard Chelidonichthys cuculus was studied by monthly samples obtained from commercial boats operating on western Portuguese coast. Both species showed a biased sex ratio towards females, especially for larger length classes. Length at first maturity could be estimated only for red gurnard (22.1 and 19.9 cm for females and males, respectively) because all piper gurnard individuals caught were mature. Piper gurnard showed determinate fecundity and a short spawning season, from November to February with a peak in January, whereas red gurnard showed indeterminate fecundity and a wide spawning season, from late December to May. The relative annual fecundity estimated for red gurnard (1893 ± 728 oocytes × g-1 eviscerated weight [EW]) was higher than the one estimated for piper gurnard (1018 ± 250 oocytes×g-1 EW). Although important information for understanding the species dynamics is presented in this study, additional information on other life-history parameters and of species landings is required.
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Affiliation(s)
- Ana Neves
- Departamento de Biologia Animal, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal
- MARE - Marine and Environmental Sciences Centre, Lisbon, Portugal
| | - Inês Sousa
- MARE - Marine and Environmental Sciences Centre, Lisbon, Portugal
| | - Vera Sequeira
- Departamento de Biologia Animal, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal
- MARE - Marine and Environmental Sciences Centre, Lisbon, Portugal
| | - Ana Rita Vieira
- Departamento de Biologia Animal, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal
- MARE - Marine and Environmental Sciences Centre, Lisbon, Portugal
| | - Elisabete Silva
- Departamento de Biologia Animal, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal
| | - Frederica Silva
- Departamento de Biologia Animal, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal
- MARE - Marine and Environmental Sciences Centre, Polytechnic of Leiria, Cetemares, Peniche, Portugal
| | - Ana Marta Duarte
- MARE - Marine and Environmental Sciences Centre, Polytechnic of Leiria, Cetemares, Peniche, Portugal
| | - Susana Mendes
- MARE - Marine and Environmental Sciences Centre, ESTM, Polytechnic of Leiria, Cetemares, Peniche, Portugal
| | - Rui Ganhão
- MARE - Marine and Environmental Sciences Centre, ESTM, Polytechnic of Leiria, Cetemares, Peniche, Portugal
| | - Carlos Assis
- Departamento de Biologia Animal, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal
- MARE - Marine and Environmental Sciences Centre, Lisbon, Portugal
| | - Rui Rebelo
- Departamento de Biologia Animal, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal
- CE3C - Centre for Ecology, Evolution and Environmental Changes, Lisbon, Portugal
| | - Maria Filomena Magalhães
- Departamento de Biologia Animal, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal
- CE3C - Centre for Ecology, Evolution and Environmental Changes, Lisbon, Portugal
| | - Maria Manuel Gil
- MARE - Marine and Environmental Sciences Centre, ESTM, Polytechnic of Leiria, Cetemares, Peniche, Portugal
| | - Leonel Serrano Gordo
- Departamento de Biologia Animal, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal
- MARE - Marine and Environmental Sciences Centre, Lisbon, Portugal
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29
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Rebordão MR, Amaral A, Fernandes C, Silva E, Lukasik K, Szóstek-Mioduchowska A, Pinto-Bravo P, Galvão A, Skarzynski DJ, Ferreira-Dias G. Enzymes Present in Neutrophil Extracellular Traps May Stimulate the Fibrogenic PGF 2α Pathway in the Mare Endometrium. Animals (Basel) 2021; 11:ani11092615. [PMID: 34573581 PMCID: PMC8469524 DOI: 10.3390/ani11092615] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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: 07/23/2021] [Revised: 09/02/2021] [Accepted: 09/02/2021] [Indexed: 12/23/2022] Open
Abstract
Simple Summary Endometrosis is a fibrotic disease in mare endometrium whose pathological mechanisms remain obscure. Prostaglandin (PG)F2α, despite modulating reproductive physiological processes, may also provoke local pathological collagen deposition (fibrogenesis). Neutrophil extracellular traps (NETs) released during inflammation have been linked to fibrogenesis in several tissues. We have previously shown that enzymes found in NETs increase in vitro collagen production in mare endometrium. In this study, activation of PGF2α-pathway in equine endometrial explants challenged in vitro by enzymes found in NETs is shown. Our results indicate that both endocrine microenvironment (estrous cycle phase) and healthy or pathological conditions of endometrial tissues play an important role in PGF2α-pathway activation. In the endometrium of the follicular phase, we have observed both high production of PGF2α and/or PGF2α receptor gene transcription under the action of enzymes found in NETs, both conditions associated with fibrogenesis in other tissues. Nevertheless, transcription of the PGF2α receptor gene does not appear to be hormone-dependent, albeit their levels seem to be dependent on endometrial category in the mid-luteal phase. This study suggests that enzymes existing in NETs may instigate changes on PGF2α mediators, which may become an additional mechanism of fibrogenesis in mare endometrium. Abstract Endometrosis, a fibrotic disease of mare endometrium, impairs uterine function. Prostaglandins (PG), despite modulating reproductive physiological functions, may also cause local pathological collagen deposition (fibrogenesis). We have previously shown that neutrophil extracellular traps (NETs) may also favor mare endometrosis. The aim of this study was to investigate the effect of enzymes present in NETs on PGF2α-pathway activation. Kenney and Doig’s type I/IIA and IIB/III mare endometria, from follicular phase (FLP) and mid-luteal (MLP) phase, were cultured in vitro in the presence of NETs enzymes (elastase, cathepsin-G or myeloperoxidase). Production of PGF2α (EIA) and transcription (qPCR) of its synthases (PTGS2, AKR1C3) and receptor (PTGFR) genes were evaluated. PGF2α and PTGFR were influenced by endometrial category and estrous cycle phase. In FLP endometrium, NETs enzymes induced both high PGF2α production and/or PTGFR transcription. In MLP type I/IIA tissues, down-regulation of PTGFR transcripts occurred. However, in MLP type IIB/III endometrium, high levels of PTGFR transcripts were induced by NETs enzymes. As PGF2α-pathway activation facilitates fibrogenesis in other tissues, PGF2α may be involved in endometrosis pathogenesis. In the mare, the endocrine microenvironment of healthy and pathological endometrium might modulate the PGF2α pathway, as well as fibrosis outcome on endometrium challenged by NETs enzymes.
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Affiliation(s)
- Maria Rosa Rebordão
- CIISA—Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, 1300-477 Lisboa, Portugal; (M.R.R.); (A.A.); (C.F.); (E.S.)
- Polytechnic Institute of Coimbra, College of Agriculture, 3045-601 Coimbra, Portugal;
| | - Ana Amaral
- CIISA—Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, 1300-477 Lisboa, Portugal; (M.R.R.); (A.A.); (C.F.); (E.S.)
| | - Carina Fernandes
- CIISA—Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, 1300-477 Lisboa, Portugal; (M.R.R.); (A.A.); (C.F.); (E.S.)
| | - Elisabete Silva
- CIISA—Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, 1300-477 Lisboa, Portugal; (M.R.R.); (A.A.); (C.F.); (E.S.)
| | - Karolina Lukasik
- Department of Reproductive Immunology and Pathology, Institute of Animal Reproduction and Food Research of PAS, 10-748 Olsztyn, Poland; (K.L.); (A.S.-M.); (A.G.); (D.J.S.)
| | - Anna Szóstek-Mioduchowska
- Department of Reproductive Immunology and Pathology, Institute of Animal Reproduction and Food Research of PAS, 10-748 Olsztyn, Poland; (K.L.); (A.S.-M.); (A.G.); (D.J.S.)
| | - Pedro Pinto-Bravo
- Polytechnic Institute of Coimbra, College of Agriculture, 3045-601 Coimbra, Portugal;
| | - António Galvão
- Department of Reproductive Immunology and Pathology, Institute of Animal Reproduction and Food Research of PAS, 10-748 Olsztyn, Poland; (K.L.); (A.S.-M.); (A.G.); (D.J.S.)
| | - Dariusz J. Skarzynski
- Department of Reproductive Immunology and Pathology, Institute of Animal Reproduction and Food Research of PAS, 10-748 Olsztyn, Poland; (K.L.); (A.S.-M.); (A.G.); (D.J.S.)
| | - Graça Ferreira-Dias
- CIISA—Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, 1300-477 Lisboa, Portugal; (M.R.R.); (A.A.); (C.F.); (E.S.)
- Correspondence: ; Tel.: +351-213-652-859
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Costa E Silva M, Silva E, Mendes A, Barroso A. Encephalitis in non-small-cell lung cancer. Pulmonology 2021; 27:582-583. [PMID: 34429276 DOI: 10.1016/j.pulmoe.2021.07.005] [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] [Received: 04/20/2021] [Revised: 07/18/2021] [Accepted: 07/19/2021] [Indexed: 11/16/2022] Open
Affiliation(s)
- M Costa E Silva
- Pulmonology Department, Vila Nova de Gaia/Espinho Hospital Center, Portugal.
| | - E Silva
- Pulmonology Department, Vila Nova de Gaia/Espinho Hospital Center, Portugal; Thoracic Tumors Multidisciplinary Unit, Pulmonology Department, Vila Nova de Gaia/Espinho Hospital Center, Portugal
| | - A Mendes
- Neurology Department, Vila Nova de Gaia/Espinho Hospital Center, Portugal
| | - A Barroso
- Pulmonology Department, Vila Nova de Gaia/Espinho Hospital Center, Portugal; Thoracic Tumors Multidisciplinary Unit, Pulmonology Department, Vila Nova de Gaia/Espinho Hospital Center, Portugal
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Roeca C, Silva E, Barentsen C, Powell TL, Jansson T. Effects of vitrification and the superovulated environment on placental function and fetal growth in an IVF mouse model. Mol Hum Reprod 2021; 26:624-635. [PMID: 32618997 DOI: 10.1093/molehr/gaaa047] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 06/08/2020] [Indexed: 01/15/2023] Open
Abstract
In studies of human IVF, as compared to frozen embryo transfer (ET), fresh ET is associated with smaller infants and higher risk of small for gestational age infants. Recent observations suggest that ET using vitrified embryos is associated with higher pregnancy and live birth rates compared to fresh ET, but increased rates of large for gestational age infants. The mechanisms underlying these associations are largely unknown, and available evidence suggests that the influence of IVF, vitrification and the superovulated (SO) uterine environment on placental function and fetal growth is complex. This warrants further investigation given the prevalent practice in human IVF of both fresh ET into a SO uterine environment, and vitrification with ET into a more physiologic uterine environment. Using a mouse model that closely resembles human IVF, we investigated if vitrification of IVF embryos better preserves placental function and results in better pregnancy outcomes as compared to fresh ET because of transfer into a more physiologic endometrium. We found that the SO environment, independent of vitrification status, reduced implantation rates, inhibited placental mechanistic target of rapamycin signaling and induced placental stress signaling, resulting in fetal growth restriction (1.080 ± 0.05 g estrous fresh (n = 17 litters), 1.176 ± 0.05 g estrous vitrified (n = 12), 0.771 ± 0.06 g SO fresh (n = 15), 0.895 ± 0.08 g SO vitrified (n = 10), P < 0.0001). In addition, our study suggests that vitrification impairs the developmental potential of IVF blastocysts that resulted in a significantly smaller litter size (2.6 ± 2.3 fresh estrous vs 2.5 ± 2.4 fresh SO vs 1.6 ± 1.7 estrous vitrified vs 1.7 ± 1.8 SO vitrified, P = 0.019), with no effect on fetal growth or placental function at term. Our findings suggest that vitrification may negatively impact early embryonic viability, while the SO maternal uterine environment impairs both placental development and fetal growth in IVF.
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Affiliation(s)
- C Roeca
- Department of Obstetrics & Gynecology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - E Silva
- Department of Obstetrics & Gynecology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - C Barentsen
- Department of Obstetrics & Gynecology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - T L Powell
- Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - T Jansson
- Department of Obstetrics & Gynecology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
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Rodrigues M, Grunho M, Rachão A, Silva E, Cordeiro A, Guilherme M, Pereira L. The impact of COVID-19 pandemic in stroke code activation and time from symptom onset to hospital arrival in a Portuguese comprehensive stroke centre. Rev Neurol 2021; 73:89-95. [PMID: 34291445 DOI: 10.33588/rn.7303.2020445] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
INTRODUCTION Coronavirus disease 2019 (COVID-19) impacted emergency services worldwide. AIM We aimed to evaluate COVID-19 effect on the number of stroke code activations and timings during the first two months of the pandemic. MATERIAL AND METHODS We reviewed the stroke code database of a single comprehensive stroke centre in Portugal for the number of activations through 2019-2020. We compared the pathway timings between March and April 2020 (COVID-19 period) and the homologous months of the previous four years (pre-COVID-19 period), whilst using February as a control. RESULTS Monthly stroke code activation rates decreased up to 34.2% during COVID-19 pandemic. Compared to the pre-COVID-19 period, we observed an increase in the time from symptom onset to emergency call, with a significant number of patients waiting more than four hours (March 20.8% vs. 6.8%, p = 0.034; April 23.8% vs. 6%, p = 0.01); as well as an increase in the time from symptom onset to hospital arrival (March: median 136 minutes [IQR 106-410] vs. 100 [IQR 64-175], p = 0.001; April: median 188 [IQR 96-394] vs. 98 [IQR 66-168], p = 0.007). No difference between both periods was found concerning in-hospital times, patient characteristics, stroke/mimic diagnosis, stroke severity, and mortality. CONCLUSION COVID-19 related factors probably reduced healthcare services utilization, and delayed emergency calls and hospital arrival after stroke onset. These highlight the importance of health education to improve the effectiveness of medical assistance. The preservation of in-hospital times validates the feasibility of the protected stroke code protocol.
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Affiliation(s)
| | - M Grunho
- Hospital Garcia de Orta, Almada, Portugal
| | - A Rachão
- Hospital Garcia de Orta, Almada, Portugal
| | - E Silva
- Hospital Garcia de Orta, Almada, Portugal
| | - A Cordeiro
- Hospital Garcia de Orta, Almada, Portugal
| | | | - L Pereira
- Hospital Garcia de Orta, Almada, Portugal
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Osório LA, Silva E, Mackay RE. A Review of Biomaterials and Scaffold Fabrication for Organ-on-a-Chip (OOAC) Systems. Bioengineering (Basel) 2021; 8:113. [PMID: 34436116 PMCID: PMC8389238 DOI: 10.3390/bioengineering8080113] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [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: 05/12/2021] [Revised: 07/26/2021] [Accepted: 08/02/2021] [Indexed: 12/12/2022] Open
Abstract
Drug and chemical development along with safety tests rely on the use of numerous clinical models. This is a lengthy process where animal testing is used as a standard for pre-clinical trials. However, these models often fail to represent human physiopathology. This may lead to poor correlation with results from later human clinical trials. Organ-on-a-Chip (OOAC) systems are engineered microfluidic systems, which recapitulate the physiochemical environment of a specific organ by emulating the perfusion and shear stress cellular tissue undergoes in vivo and could replace current animal models. The success of culturing cells and cell-derived tissues within these systems is dependent on the scaffold chosen; hence, scaffolds are critical for the success of OOACs in research. A literature review was conducted looking at current OOAC systems to assess the advantages and disadvantages of different materials and manufacturing techniques used for scaffold production; and the alternatives that could be tailored from the macro tissue engineering research field.
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Affiliation(s)
- Luana A. Osório
- Department of Mechanical, Aerospace and Civil Engineering, Brunel University London, Uxbridge UB8 3PH, UK;
| | - Elisabete Silva
- Department of Life Science, Brunel University London, Uxbridge UB8 3PH, UK;
| | - Ruth E. Mackay
- Department of Mechanical, Aerospace and Civil Engineering, Brunel University London, Uxbridge UB8 3PH, UK;
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Costa J, Mackay R, de Aguiar Greca SC, Corti A, Silva E, Karteris E, Ahluwalia A. The Role of the 3Rs for Understanding and Modeling the Human Placenta. J Clin Med 2021; 10:jcm10153444. [PMID: 34362227 PMCID: PMC8347836 DOI: 10.3390/jcm10153444] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 07/28/2021] [Accepted: 08/02/2021] [Indexed: 12/12/2022] Open
Abstract
Modeling the physiology of the human placenta is still a challenge, despite the great number of scientific advancements made in the field. Animal models cannot fully replicate the structure and function of the human placenta and pose ethical and financial hurdles. In addition, increasingly stricter animal welfare legislation worldwide is incentivizing the use of 3R (reduction, refinement, replacement) practices. What efforts have been made to develop alternative models for the placenta so far? How effective are they? How can we improve them to make them more predictive of human pathophysiology? To address these questions, this review aims at presenting and discussing the current models used to study phenomena at the placenta level: in vivo, ex vivo, in vitro and in silico. We describe the main achievements and opportunities for improvement of each type of model and critically assess their individual and collective impact on the pursuit of predictive studies of the placenta in line with the 3Rs and European legislation.
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Affiliation(s)
- Joana Costa
- Centro di Ricerca E.Piaggio, University of Pisa, 56126 Pisa, Italy; (J.C.); (A.C.)
| | - Ruth Mackay
- Centre for Genome Engineering and Maintenance, Department of Mechanical and Aerospace Engineering, Brunel University London, Uxbridge UB8 3PH, UK;
| | | | - Alessandro Corti
- Centro di Ricerca E.Piaggio, University of Pisa, 56126 Pisa, Italy; (J.C.); (A.C.)
- Department of Translational Medicine, University of Pisa, 56126 Pisa, Italy
| | - Elisabete Silva
- College of Health, Medicine and Life Sciences, Brunel University London, Uxbridge UB8 3PH, UK; (S.-C.d.A.G.); (E.S.); (E.K.)
| | - Emmanouil Karteris
- College of Health, Medicine and Life Sciences, Brunel University London, Uxbridge UB8 3PH, UK; (S.-C.d.A.G.); (E.S.); (E.K.)
| | - Arti Ahluwalia
- Centro di Ricerca E.Piaggio, University of Pisa, 56126 Pisa, Italy; (J.C.); (A.C.)
- Department of Information Engineering, University of Pisa, 56122 Pisa, Italy
- Interuniversity Centro for the Promotion of 3Rs Principles in Teaching and Research (Centro3R), Italy
- Correspondence:
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Pereira G, Bexiga R, Chagas E Silva J, Silva E, Ramé C, Dupont J, Guo Y, Humblot P, Lopes-da-Costa L. Adipokines as biomarkers of postpartum subclinical endometritis in dairy cows. Reproduction 2021; 160:417-430. [PMID: 32567551 PMCID: PMC7424352 DOI: 10.1530/rep-20-0183] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Accepted: 06/18/2020] [Indexed: 12/20/2022]
Abstract
Adipokines emerged as regulators of metabolism and inflammation in several scenarios. This study evaluated the relationship between adipokines (adiponectin, chemerin and visfatin) and cytological (subclinical) endometritis, by comparing healthy (without), transient (recovered by 45 days postpartum (DPP)) and persistent (until 45 DPP) endometritis cows (n = 49). Cows with persistent endometritis had higher adiponectin concentrations in plasma (at 21 DPP, P < 0.05 and at 45 DPP, P < 0.01) and in uterine fluid (at 45 DPP, P < 0.001), and higher chemerin concentrations in plasma (P < 0.05) and uterine fluid (P < 0.01) at 45 DPP than healthy cows. Cows with persistent endometritis had higher gene transcription in the cellular pellet of uterine fluid and protein expression in the endometrium of these adipokines and their receptors than healthy cows. Adiponectin plasma concentrations allowed to discriminate healthy from persistent endometritis cows, in 87% (21 DPP) and 98% (45 DPP) of cases, and adiponectin and chemerin uterine fluid concentrations at 45 DPP allowed for this discrimination in 100% of cases. Cows with concentrations above the cutoff were a minimum of 3.5 (plasma 21 DPP), 20.4 (plasma 45 DPP), and 33.3 (uterine fluid 45 DPP) times more at risk of evidencing persistent endometritis at 45 DPP than cows with concentrations below the cutoff. Overall, results indicate a relationship between adipokine signalling and the inflammatory status of the postpartum uterus of dairy cows, evidencing that adipokines represent suitable biomarkers of subclinical endometritis, able to predict the risk of persistence of inflammation.
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Affiliation(s)
- Gonçalo Pereira
- CIISA - Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Lisboa, Portugal
| | - Ricardo Bexiga
- CIISA - Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Lisboa, Portugal
| | - João Chagas E Silva
- CIISA - Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Lisboa, Portugal
| | - Elisabete Silva
- CIISA - Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Lisboa, Portugal
| | - Christelle Ramé
- INRAE, UMR85 Physiologie de la Reproduction et des Comportements, Nouzilly, France
| | - Joëlle Dupont
- INRAE, UMR85 Physiologie de la Reproduction et des Comportements, Nouzilly, France
| | - Yongzhi Guo
- Division of Reproduction, Department of Clinical Sciences, SLU, Uppsala, Sweden
| | - Patrice Humblot
- Division of Reproduction, Department of Clinical Sciences, SLU, Uppsala, Sweden
| | - Luís Lopes-da-Costa
- CIISA - Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Lisboa, Portugal
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Brown JM, Yelland MJ, Pullen T, Silva E, Martin A, Gold I, Whittle L, Wisse P. Novel use of social media to assess and improve coastal flood forecasts and hazard alerts. Sci Rep 2021; 11:13727. [PMID: 34215770 PMCID: PMC8253846 DOI: 10.1038/s41598-021-93077-z] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Accepted: 06/18/2021] [Indexed: 11/30/2022] Open
Abstract
Coastal communities and infrastructure need protection from flooding and wave overtopping events. Assessment of hazard prediction methods, used in sea defence design, defence performance inspections and forecasting services, requires observations at the land-sea interface but these are rarely collected. Here we show how a database of hindcast overtopping events, and the conditions that cause them, can be built using qualitative overtopping information obtained from social media. We develop a database for a case study site at Crosby in the Northwest of England, use it to test the standard methods applied in operational flood forecasting services and new defence design, and suggest improvements to these methods. This novel approach will become increasingly important to deliver long-term, cost-effective coastal management solutions as sea-levels rise and coastal populations grow. At sites with limited, or no, monitoring or forecasting services, this approach, especially if combined with citizen science initiatives, could underpin the development of simplified early warning systems.
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Affiliation(s)
- J M Brown
- National Oceanography Centre, 6 Brownlow Street, Liverpool, L3 5AD, UK.
| | - M J Yelland
- National Oceanography Centre, European Way, Southampton, SO14 3ZH, UK
| | - T Pullen
- HR Wallingford, Howbery Park, Wallingford, Oxfordshire, OX10 8BA, UK
| | - E Silva
- HR Wallingford, Howbery Park, Wallingford, Oxfordshire, OX10 8BA, UK
| | - A Martin
- Sefton Council, Trinity Road, Bootle, Liverpool, L20 3NJ, UK
| | - I Gold
- Environment Agency, Richard Fairclough House, Knutsford Road, Warrington, WA4 1HT, UK
| | - L Whittle
- Sefton Council, Trinity Road, Bootle, Liverpool, L20 3NJ, UK
| | - P Wisse
- Sefton Council, Trinity Road, Bootle, Liverpool, L20 3NJ, UK
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Timóteo-Ferreira F, Abreu D, Mendes S, Matos L, Rodrigues A, Almeida H, Silva E. Redox imbalance in age-related ovarian dysfunction and perspectives for its prevention. Ageing Res Rev 2021; 68:101345. [PMID: 33894395 DOI: 10.1016/j.arr.2021.101345] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 04/07/2021] [Accepted: 04/16/2021] [Indexed: 12/17/2022]
Abstract
The age at which women have their first child is increasing. This change represents a major health problem to society because advanced maternal age is related with a decay in fertility and an increase in the incidence of a variety of pregnancy complications and offspring health issues. The ovary stands as the main contributor for female reproductive ageing because of the progressive age-related decrease in follicle number and oocyte quality. Loss of redox homeostasis and establishment of an ovarian oxidative microenvironment are seen as major underlying causes for such downfall and impairment of ovarian function. Thus, the use of antioxidants to preserve fertility became an important field of research. In this review, new insights on mechanisms underlying the establishment of oxidative stress and its repercussions on ovarian ageing are addressed, along with the current state of knowledge on antioxidant supplementation and its contribution for healthy ageing and extension of ovarian lifespan.
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Borca MV, Rai A, Ramirez-Medina E, Silva E, Velazquez-Salinas L, Vuono E, Pruitt S, Espinoza N, Gladue DP. A Cell Culture-Adapted Vaccine Virus against the Current African Swine Fever Virus Pandemic Strain. J Virol 2021; 95:e0012321. [PMID: 33952643 PMCID: PMC8315737 DOI: 10.1128/jvi.00123-21] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Accepted: 04/27/2021] [Indexed: 11/20/2022] Open
Abstract
African swine fever virus (ASFV) causes a virulent, deadly infection in wild and domestic swine and is currently causing a pandemic covering a contiguous geographical area from Central and Eastern Europe to Asia. No commercial vaccines are available to prevent African swine fever (ASF), resulting in devastating economic losses to the swine industry. The most advanced vaccine candidates are live attenuated strains developed using a genetically modified virulent parental virus. Recently, we developed a vaccine candidate, ASFV-G-ΔI177L, by deleting the I177L gene from the genome of the highly virulent ASFV pandemic strain Georgia (ASFV-G). ASFV-G-ΔI177L is safe and highly efficacious in challenge studies using parental ASFV-G. Large-scale production of ASFV-G-ΔI177L has been limited because it can replicate efficiently only in primary swine macrophages. Here, we present the development of an ASFV-G-ΔI177L derivative strain, ASFV-G-ΔI177L/ΔLVR, that replicates efficiently in a stable porcine cell line. In challenge studies, ASFV-G-ΔI177L/ΔLVR maintained the same level of attenuation, immunogenic characteristics, and protective efficacy as ASFV-G-ΔI177L. ASFV-G-ΔI177L/ΔLVR is the first rationally designed ASF vaccine candidate that can be used for large-scale commercial vaccine manufacture. IMPORTANCE African swine fever is currently causing a pandemic resulting in devastating losses to the swine industry. Experimental ASF vaccines rely on the production of vaccine in primary swine macrophages, which are difficult to use for the production of a vaccine on a commercial level. Here, we report a vaccine for ASFV with a deletion in the left variable region (LVR). This deletion allows for growth in stable cell cultures while maintaining the potency and efficacy of the parental vaccine strain. This discovery will allow for the production of an ASF vaccine on a commercial scale.
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Affiliation(s)
- M. V. Borca
- Plum Island Animal Disease Center, ARS, USDA, Greenport, New York, USA
| | - A. Rai
- Plum Island Animal Disease Center, ARS, USDA, Greenport, New York, USA
- Oak Ridge Institute for Science and Education (ORISE), Oak Ridge, Tennessee, USA
| | - E. Ramirez-Medina
- Plum Island Animal Disease Center, ARS, USDA, Greenport, New York, USA
- Department of Pathobiology and Veterinary Science, University of Connecticut, Storrs, Mansfield, Connecticut, USA
| | - E. Silva
- Plum Island Animal Disease Center, ARS, USDA, Greenport, New York, USA
- Department of Anatomy and Physiology, Kansas State University, Manhattan, Kansas, USA
| | - L. Velazquez-Salinas
- Plum Island Animal Disease Center, ARS, USDA, Greenport, New York, USA
- Department of Anatomy and Physiology, Kansas State University, Manhattan, Kansas, USA
| | - E. Vuono
- Plum Island Animal Disease Center, ARS, USDA, Greenport, New York, USA
- Department of Pathobiology and Population Medicine, Mississippi State University, Mississippi State, Mississippi, USA
| | - S. Pruitt
- Plum Island Animal Disease Center, ARS, USDA, Greenport, New York, USA
| | - N. Espinoza
- Plum Island Animal Disease Center, ARS, USDA, Greenport, New York, USA
| | - D. P. Gladue
- Plum Island Animal Disease Center, ARS, USDA, Greenport, New York, USA
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Zahra A, Dong Q, Hall M, Jeyaneethi J, Silva E, Karteris E, Sisu C. Identification of Potential Bisphenol A (BPA) Exposure Biomarkers in Ovarian Cancer. J Clin Med 2021; 10:jcm10091979. [PMID: 34062972 PMCID: PMC8125610 DOI: 10.3390/jcm10091979] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 04/16/2021] [Accepted: 04/24/2021] [Indexed: 02/07/2023] Open
Abstract
Endocrine-disrupting chemicals (EDCs) can exert multiple deleterious effects and have been implicated in carcinogenesis. The xenoestrogen Bisphenol A (BPA) that is found in various consumer products has been involved in the dysregulation of numerous signalling pathways. In this paper, we present the analysis of a set of 94 genes that have been shown to be dysregulated in presence of BPA in ovarian cancer cell lines since we hypothesised that these genes might be of biomarker potential. This study sought to identify biomarkers of disease and biomarkers of disease-associated exposure. In silico analyses took place using gene expression data extracted from The Cancer Genome Atlas (TCGA) and the Genotype-Tissue Expression (GTEx) databases. Differential expression was further validated at protein level using immunohistochemistry on an ovarian cancer tissue microarray. We found that 14 out of 94 genes are solely dysregulated in the presence of BPA, while the remaining 80 genes are already dysregulated (p-value < 0.05) in their expression pattern as a consequence of the disease. We also found that seven genes have prognostic power for the overall survival in OC in relation to their expression levels. Out of these seven genes, Keratin 4 (KRT4) appears to be a biomarker of exposure-associated ovarian cancer, whereas Guanylate Binding Protein 5 (GBP5), long intergenic non-protein coding RNA 707 (LINC00707) and Solute Carrier Family 4 Member 11 (SLC4A11) are biomarkers of disease. BPA can exert a plethora of effects that can be tissue- or cancer-specific. Our in silico findings generate a hypothesis around biomarkers of disease and exposure that could potentially inform regulation and policy making.
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Affiliation(s)
- Aeman Zahra
- Biosciences, College of Health, Medicine and Life Sciences, Brunel University London, Uxbridge UB8 3PH, UK; (A.Z.); (Q.D.); (M.H.); (J.J.); (E.S.)
| | - Qiduo Dong
- Biosciences, College of Health, Medicine and Life Sciences, Brunel University London, Uxbridge UB8 3PH, UK; (A.Z.); (Q.D.); (M.H.); (J.J.); (E.S.)
| | - Marcia Hall
- Biosciences, College of Health, Medicine and Life Sciences, Brunel University London, Uxbridge UB8 3PH, UK; (A.Z.); (Q.D.); (M.H.); (J.J.); (E.S.)
- Mount Vernon Cancer Centre, Northwood HA6 2RN, UK
| | - Jeyarooban Jeyaneethi
- Biosciences, College of Health, Medicine and Life Sciences, Brunel University London, Uxbridge UB8 3PH, UK; (A.Z.); (Q.D.); (M.H.); (J.J.); (E.S.)
| | - Elisabete Silva
- Biosciences, College of Health, Medicine and Life Sciences, Brunel University London, Uxbridge UB8 3PH, UK; (A.Z.); (Q.D.); (M.H.); (J.J.); (E.S.)
| | - Emmanouil Karteris
- Biosciences, College of Health, Medicine and Life Sciences, Brunel University London, Uxbridge UB8 3PH, UK; (A.Z.); (Q.D.); (M.H.); (J.J.); (E.S.)
- Correspondence: (E.K.); (C.S.)
| | - Cristina Sisu
- Biosciences, College of Health, Medicine and Life Sciences, Brunel University London, Uxbridge UB8 3PH, UK; (A.Z.); (Q.D.); (M.H.); (J.J.); (E.S.)
- Correspondence: (E.K.); (C.S.)
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Pinto-Bravo P, Rebordão MR, Amaral A, Fernandes C, Galvão A, Silva E, Pessa-Santos P, Alexandre-Pires G, Roberto da Costa RP, Skarzynski DJ, Ferreira-Dias G. Microvascularization and Expression of Fibroblast Growth Factor and Vascular Endothelial Growth Factor and Their Receptors in the Mare Oviduct. Animals (Basel) 2021; 11:ani11041099. [PMID: 33921416 PMCID: PMC8070128 DOI: 10.3390/ani11041099] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 04/01/2021] [Accepted: 04/06/2021] [Indexed: 12/14/2022] Open
Abstract
Simple Summary The oviduct provides the ideal conditions for fertilization and early embryonic development. Adequate vascularization is essential for proper oviduct physiological function. In this work on the mare oviduct, differences in the oviductal artery and arterioles and their ramifications in the infundibulum, ampulla and isthmus were examined. Locally, vascularization is modulated by the action of angiogenic factors, mediated by their specific receptors. In the present study, the isthmus presented the largest vascular area and the highest number of vascular structures in the follicular phase. We have also shown that the relative abundance of angiogenic transcripts and proteins, such as fibroblast growth factor 1 (FGF1) and 2 (FGF2) and vascular endothelial growth factor (VEGF), and their respective receptors (FGFR1, FGFR2, VEGFR2 = KDR), were present in all portions of the oviduct throughout the estrous cycle. There was an increase in the transcripts of angiogenic receptors FGF1 and FGFR1 in the ampulla and isthmus, and of FGF2 and KDR in the isthmus. This was also observed in the isthmus, where the relative abundance of proteins FGFR1 and KDR was the highest. This study shows that the equine oviduct presents differences in microvascular density in its portions. The angiogenic factors VEGF, FGF1, FGF2 and their respective receptors are expressed in all studied regions of the mare oviduct, in agreement with microvascular patterns. Abstract The oviduct presents the ideal conditions for fertilization and early embryonic development. In this study, (i) vascularization pattern; (ii) microvascular density; (iii) transcripts of angiogenic factors (FGF1, FGF2, VEGF) and their receptors—FGFR1, FGFR2, KDR, respectively, and (iv) the relative protein abundance of those receptors were assessed in cyclic mares’ oviducts. The oviductal artery, arterioles and their ramifications, viewed by means of vascular injection-corrosion, differed in the infundibulum, ampulla and isthmus. The isthmus, immunostained with CD31, presented the largest vascular area and the highest number of vascular structures in the follicular phase. Transcripts (qPCR) and relative protein abundance (Western blot) of angiogenic factors fibroblast growth factor 1 (FGF1) and 2 (FGF2) and vascular endothelial growth factor (VEGF), and their respective receptors (FGFR1, FGFR2, VEGFR2 = KDR), were present in all oviduct portions throughout the estrous cycle. Upregulation of the transcripts of angiogenic receptors FGF1 and FGFR1 in the ampulla and isthmus and of FGF2 and KDR in the isthmus were noted. Furthermore, in the isthmus, the relative protein abundance of FGFR1 and KDR was the highest. This study shows that the equine oviduct presents differences in microvascular density in its three portions. The angiogenic factors VEGF, FGF1, FGF2 and their respective receptors are expressed in all studied regions of the mare oviduct, in agreement with microvascular patterns.
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Affiliation(s)
- Pedro Pinto-Bravo
- CERNAS (Research Center for Natural Resources, Environment and Society), Polytechnic Institute of Coimbra, 3045-601 Coimbra, Portugal; (P.P.-B.); (R.P.R.d.C.)
- Coimbra College of Agriculture, Polytechnic Institute of Coimbra, 3045-601 Coimbra, Portugal;
| | - Maria Rosa Rebordão
- Coimbra College of Agriculture, Polytechnic Institute of Coimbra, 3045-601 Coimbra, Portugal;
- CIISA—Centre for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, 1300-477 Lisbon, Portugal; (A.A.); (C.F.); (E.S.); (G.A.-P.)
| | - Ana Amaral
- CIISA—Centre for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, 1300-477 Lisbon, Portugal; (A.A.); (C.F.); (E.S.); (G.A.-P.)
| | - Carina Fernandes
- CIISA—Centre for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, 1300-477 Lisbon, Portugal; (A.A.); (C.F.); (E.S.); (G.A.-P.)
| | - António Galvão
- Institute of Animal Reproduction and Food Research, Polish Academy of Science, 10-748 Olsztyn, Poland; (A.G.); (D.J.S.)
| | - Elisabete Silva
- CIISA—Centre for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, 1300-477 Lisbon, Portugal; (A.A.); (C.F.); (E.S.); (G.A.-P.)
| | | | - Graça Alexandre-Pires
- CIISA—Centre for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, 1300-477 Lisbon, Portugal; (A.A.); (C.F.); (E.S.); (G.A.-P.)
| | - Rosário P. Roberto da Costa
- CERNAS (Research Center for Natural Resources, Environment and Society), Polytechnic Institute of Coimbra, 3045-601 Coimbra, Portugal; (P.P.-B.); (R.P.R.d.C.)
- Coimbra College of Agriculture, Polytechnic Institute of Coimbra, 3045-601 Coimbra, Portugal;
| | - Dariusz J. Skarzynski
- Institute of Animal Reproduction and Food Research, Polish Academy of Science, 10-748 Olsztyn, Poland; (A.G.); (D.J.S.)
| | - Graça Ferreira-Dias
- CIISA—Centre for Interdisciplinary Research in Animal Health, Faculty of Veterinary Medicine, University of Lisbon, 1300-477 Lisbon, Portugal; (A.A.); (C.F.); (E.S.); (G.A.-P.)
- Correspondence: ; Tel.: +351-213-652-859
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Batista MR, Diniz P, Murta D, Torres A, Lopes-da-Costa L, Silva E. Balanced Notch-Wnt signaling interplay is required for mouse embryo and fetal development. Reproduction 2021; 161:385-398. [PMID: 33539320 DOI: 10.1530/rep-20-0435] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Accepted: 02/04/2021] [Indexed: 11/08/2022]
Abstract
This study investigated the role of Notch and Wnt cell signaling interplay in the mouse early embryo, and its effects on fetal development. Developmental kinetics was evaluated in embryos in vitro cultured from the 8-16-cell to the hatched blastocyst stage in the presence of signaling inhibitors of Notch (DAPT) and/or Wnt (DKK1). An embryo subset was evaluated for differential cell count and gene transcription of Notch (receptors Notch1-4, ligands Dll1, Dll4, Jagged1-2, effectors Hes1-2) and Wnt (Wnt3a, Lrp6, Gsk3β, C-myc, Tcf4, β-catenin) components, E-cadherin and pluripotency and differentiation markers (Sox2, Oct4, Klf4, Cdx2), whereas a second subset was evaluated for implantation ability and development to term following transfer into recipients. Notch and Wnt blockades had significant opposing effects on developmental kinetics - Notch blockade retarded while Wnt blockade fastened development. This evidences that Notch and Wnt regulate the pace of embryo kinetics by respectively speeding and braking development. Blockades significantly changed the transcription profile of Sox2, Oct4, Klf4 and Cdx2, and Notch and double blockades significantly changed embryonic cell numbers and cell ratio. The double blockade induced more severe phenotypes than those expected from the cumulative effects of single blockades. Implantation ability was unaffected, but Notch and double blockades significantly decreased fetal development to term. Compared to control embryos, Notch blockade and Wnt blockade embryos originated, respectively, significantly lighter and heavier fetuses. In conclusion, Notch and Wnt signaling interplay in the regulation of the pace of early embryo kinetics, and their actions at this stage have significant carry-over effects on later fetal development to term.
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Affiliation(s)
- Mariana R Batista
- CIISA - Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Reproduction and Development Laboratory, Lisboa, Portugal
| | - Patrícia Diniz
- CIISA - Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Reproduction and Development Laboratory, Lisboa, Portugal
| | - Daniel Murta
- CIISA - Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Reproduction and Development Laboratory, Lisboa, Portugal.,CBIOS - Faculdade de Medicina Veterinária, Universidade Lusófona de Humanidades e Tecnologias, Lisboa, Portugal
| | - Ana Torres
- CIISA - Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Reproduction and Development Laboratory, Lisboa, Portugal
| | - Luís Lopes-da-Costa
- CIISA - Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Reproduction and Development Laboratory, Lisboa, Portugal
| | - Elisabete Silva
- CIISA - Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Reproduction and Development Laboratory, Lisboa, Portugal
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Rheuban JE, Gassett PR, McCorkle DC, Hunt CW, Liebman M, Bastidas C, O'Brien-Clayton K, Pimenta AR, Silva E, Vlahos P, Woosley RJ, Ries J, Liberti CM, Grear J, Salisbury J, Brady DC, Guay K, LaVigne M, Strong AL, Stancioff E, Turner E. Synoptic assessment of coastal total alkalinity through community science. Environ Res Lett 2021. [PMID: 35069797 DOI: 10.4211/hs.4364cffedc7e49d49255eef5f8e83148] [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] [Indexed: 05/06/2023]
Abstract
Comprehensive sampling of the carbonate system in estuaries and coastal waters can be difficult and expensive because of the complex and heterogeneous nature of near-shore environments. We show that sample collection by community science programs is a viable strategy for expanding estuarine carbonate system monitoring and prioritizing regions for more targeted assessment. 'Shell Day' was a single-day regional water monitoring event coordinating coastal carbonate chemistry observations by 59 community science programs and seven research institutions in the northeastern United States, in which 410 total alkalinity (TA) samples from 86 stations were collected. Field replicates collected at both low and high tides had a mean standard deviation between replicates of 3.6 ± 0.3 μmol kg-1 (σ mean ± SE, n = 145) or 0.20 ± 0.02%. This level of precision demonstrates that with adequate protocols for sample collection, handling, storage, and analysis, community science programs are able to collect TA samples leading to high-quality analyses and data. Despite correlations between salinity, temperature, and TA observed at multiple spatial scales, empirical predictions of TA had relatively high root mean square error >48 μmol kg-1. Additionally, ten stations displayed tidal variability in TA that was not likely driven by low TA freshwater inputs. As such, TA cannot be predicted accurately from salinity using a single relationship across the northeastern US region, though predictions may be viable at more localized scales where consistent freshwater and seawater endmembers can be defined. There was a high degree of geographic heterogeneity in both mean and tidal variability in TA, and this single-day snapshot sampling identified three patterns driving variation in TA, with certain locations exhibiting increased risk of acidification. The success of Shell Day implies that similar community science based events could be conducted in other regions to not only expand understanding of the coastal carbonate system, but also provide a way to inventory monitoring assets, build partnerships with stakeholders, and expand education and outreach to a broader constituency.
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Affiliation(s)
- J E Rheuban
- Woods Hole Oceanographic Institution, Department of Marine Chemistry and Geochemistry, Woods Hole, MA 02543, United States of America
- Woods Hole Oceanographic Institution, Woods Hole Sea Grant, Woods Hole, MA 02543, United States of America
| | - P R Gassett
- University of Maine, Orono, ME 04469, United States of America
- Maine Sea Grant, Orono, ME 04469, United States of America
- Equally contributing first author
| | - D C McCorkle
- Woods Hole Oceanographic Institution, Department of Geology and Geophysics, Woods Hole, MA 02543, United States of America
| | - C W Hunt
- University of New Hampshire, Durham, NH 03824, United States of America
| | - M Liebman
- US Environmental Protection Agency Region 1, Boston, MA 02109, United States of America
| | - C Bastidas
- MIT Sea Grant, Cambridge, MA 02139, United States of America
| | - K O'Brien-Clayton
- Connecticut Department of Energy and Environmental Protection, Hartford, CT 06106, United States of America
| | - A R Pimenta
- US Environmental Protection Agency, Atlantic Coastal Environmental Sciences Division, Narragansett, RI 02882, United States of America
| | - E Silva
- Northeastern Regional Association of Coastal Ocean Observing Systems (NERACOOS), Portsmouth, NH 03801, United States of America
| | - P Vlahos
- University of Connecticut, Storrs, CT 06269, United States of America
| | - R J Woosley
- Massachusetts Institute of Technology, Center for Global Change Science, Cambridge, MA 02139, United States of America
| | - J Ries
- Northeastern University, Marine Science Center, Department of Marine & Environmental Science, Nahant, MA 01908, United States of America
| | - C M Liberti
- University of Maine, Orono, ME 04469, United States of America
| | - J Grear
- US Environmental Protection Agency, Atlantic Coastal Environmental Sciences Division, Narragansett, RI 02882, United States of America
| | - J Salisbury
- University of New Hampshire, Durham, NH 03824, United States of America
| | - D C Brady
- University of Maine, Orono, ME 04469, United States of America
| | - K Guay
- Bowdoin College, Department of Earth and Oceanographic Science, Brunswick, ME 04011, United States of America
| | - M LaVigne
- Bowdoin College, Department of Earth and Oceanographic Science, Brunswick, ME 04011, United States of America
| | - A L Strong
- Hamilton College, Environmental Studies Program, Clinton, NY 13323, United States of America
| | - E Stancioff
- Maine Sea Grant, Orono, ME 04469, United States of America
- University of Maine Cooperative Extension Office, Waldoboro, ME 04572, United States of America
| | - E Turner
- National Oceanic and Atmospheric Administration, National Centers for Coastal Ocean Science, Silver Spring, MD 20910, United States of America, Retired
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Rheuban JE, Gassett PR, McCorkle DC, Hunt CW, Liebman M, Bastidas C, O’Brien-Clayton K, Pimenta AR, Silva E, Vlahos P, Woosley RJ, Ries J, Liberti CM, Grear J, Salisbury J, Brady DC, Guay K, LaVigne M, Strong AL, Stancioff E, Turner E. Synoptic assessment of coastal total alkalinity through community science. Environ Res Lett 2021; 16:1-14. [PMID: 35069797 PMCID: PMC8780830 DOI: 10.1088/1748-9326/abcb39] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Comprehensive sampling of the carbonate system in estuaries and coastal waters can be difficult and expensive because of the complex and heterogeneous nature of near-shore environments. We show that sample collection by community science programs is a viable strategy for expanding estuarine carbonate system monitoring and prioritizing regions for more targeted assessment. 'Shell Day' was a single-day regional water monitoring event coordinating coastal carbonate chemistry observations by 59 community science programs and seven research institutions in the northeastern United States, in which 410 total alkalinity (TA) samples from 86 stations were collected. Field replicates collected at both low and high tides had a mean standard deviation between replicates of 3.6 ± 0.3 μmol kg-1 (σ mean ± SE, n = 145) or 0.20 ± 0.02%. This level of precision demonstrates that with adequate protocols for sample collection, handling, storage, and analysis, community science programs are able to collect TA samples leading to high-quality analyses and data. Despite correlations between salinity, temperature, and TA observed at multiple spatial scales, empirical predictions of TA had relatively high root mean square error >48 μmol kg-1. Additionally, ten stations displayed tidal variability in TA that was not likely driven by low TA freshwater inputs. As such, TA cannot be predicted accurately from salinity using a single relationship across the northeastern US region, though predictions may be viable at more localized scales where consistent freshwater and seawater endmembers can be defined. There was a high degree of geographic heterogeneity in both mean and tidal variability in TA, and this single-day snapshot sampling identified three patterns driving variation in TA, with certain locations exhibiting increased risk of acidification. The success of Shell Day implies that similar community science based events could be conducted in other regions to not only expand understanding of the coastal carbonate system, but also provide a way to inventory monitoring assets, build partnerships with stakeholders, and expand education and outreach to a broader constituency.
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Affiliation(s)
- J E Rheuban
- Woods Hole Oceanographic Institution, Department of Marine Chemistry and Geochemistry, Woods Hole, MA 02543, United States of America
- Woods Hole Oceanographic Institution, Woods Hole Sea Grant, Woods Hole, MA 02543, United States of America
| | - P R Gassett
- University of Maine, Orono, ME 04469, United States of America
- Maine Sea Grant, Orono, ME 04469, United States of America
- Equally contributing first author
| | - D C McCorkle
- Woods Hole Oceanographic Institution, Department of Geology and Geophysics, Woods Hole, MA 02543, United States of America
| | - C W Hunt
- University of New Hampshire, Durham, NH 03824, United States of America
| | - M Liebman
- US Environmental Protection Agency Region 1, Boston, MA 02109, United States of America
| | - C Bastidas
- MIT Sea Grant, Cambridge, MA 02139, United States of America
| | - K O’Brien-Clayton
- Connecticut Department of Energy and Environmental Protection, Hartford, CT 06106, United States of America
| | - A R Pimenta
- US Environmental Protection Agency, Atlantic Coastal Environmental Sciences Division, Narragansett, RI 02882, United States of America
| | - E Silva
- Northeastern Regional Association of Coastal Ocean Observing Systems (NERACOOS), Portsmouth, NH 03801, United States of America
| | - P Vlahos
- University of Connecticut, Storrs, CT 06269, United States of America
| | - R J Woosley
- Massachusetts Institute of Technology, Center for Global Change Science, Cambridge, MA 02139, United States of America
| | - J Ries
- Northeastern University, Marine Science Center, Department of Marine & Environmental Science, Nahant, MA 01908, United States of America
| | - C M Liberti
- University of Maine, Orono, ME 04469, United States of America
| | - J Grear
- US Environmental Protection Agency, Atlantic Coastal Environmental Sciences Division, Narragansett, RI 02882, United States of America
| | - J Salisbury
- University of New Hampshire, Durham, NH 03824, United States of America
| | - D C Brady
- University of Maine, Orono, ME 04469, United States of America
| | - K Guay
- Bowdoin College, Department of Earth and Oceanographic Science, Brunswick, ME 04011, United States of America
| | - M LaVigne
- Bowdoin College, Department of Earth and Oceanographic Science, Brunswick, ME 04011, United States of America
| | - A L Strong
- Hamilton College, Environmental Studies Program, Clinton, NY 13323, United States of America
| | - E Stancioff
- Maine Sea Grant, Orono, ME 04469, United States of America
- University of Maine Cooperative Extension Office, Waldoboro, ME 04572, United States of America
| | - E Turner
- National Oceanic and Atmospheric Administration, National Centers for Coastal Ocean Science, Silver Spring, MD 20910, United States of America, Retired
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Cristiano E, Patrucco L, Ysrraelit MC, Alonso R, Balbuena ME, Ballario C, Barboza AG, Bestoso S, Burgos M, Cáceres FJ, Carrá A, Carnero-Contentti E, Deri N, Fernández-Liguori N, Garcea O, Hryb JP, Jacobo M, Kohler E, Luetic GG, Mainella C, Menichini ML, Míguez J, Nofal PG, Piedrabuena R, Rugilo C, Saladino ML, Silva BA, Silva E, Sinay V, Tavolini D, Tkachuk VA, Villa A, Vrech C, Rojas JI. [Argentinean consensus guidelines on the identification and clinical care of secondary progressive multiple sclerosis]. Rev Neurol 2021; 72:23-32. [PMID: 33378076 DOI: 10.33588/rn.7201.2020379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
INTRODUCTION The identification, diagnosis, follow-up, and treatment of patients with secondary progressive multiple sclerosis (SPMS) show significant differences between health care professionals in Argentina. AIM To provide consensus recommendations on the management of patients with SPMS in Argentina to optimize patient care. DEVELOPMENT A panel of expert neurologists from Argentina dedicated to the diagnosis and care of multiple sclerosis patients gathered during 2019 and 2020 to carry out a consensus recommendation on the diagnosis and treatment of SPMS patients in Argentina. To achieve consensus, the methodology of 'formal consensus-RAND/UCLA method' was used. Recommendations were established based on published evidence and the expert opinion. Recommendations focused on how to define SPMS and how to follow SPMS patients. CONCLUSION The recommendations of this consensus guidelines attempt to optimize the care of SPMS patients in Argentina.
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Affiliation(s)
- E Cristiano
- Centro de Esclerosis Múltiple de Buenos Aires (CEMBA), Buenos Aires, Argentina
| | - L Patrucco
- Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - M C Ysrraelit
- Instituto de Investigaciones Neurológicas Dr. Raúl Carrea (FLENI), Buenos Aires, Argentina
| | - R Alonso
- Hospital Ramos Mejía. Universidad de Buenos Aires, Buenos Aires, Argentina.,Hospital Universitario Sanatorio Güemes, Buenos Aires, Argentina
| | - M E Balbuena
- Hospital de Clínicas José de San Martín, Buenos Aires, Argentina
| | | | - A G Barboza
- Hospital Central de Mendoza, Mendoza, Argentina
| | - S Bestoso
- Hospital Escuela de Corrientes. Universidad Nacional del Nordeste, Corrientes, Argentina
| | - M Burgos
- Hospital San Bernardo, Salta, Argentina
| | - F J Cáceres
- Instituto de Neurociencias de Buenos Aires (INEBA), Buenos Aires, Argentina
| | - A Carrá
- Hospital Británico, Buenos Aires, Argentina.,Fundación Favaloro/INECO, Buenos Aires, Argentina
| | | | - N Deri
- Hospital General de Agudos Juan A. Fernández, Buenos Aires, Argentina.,Centro de Investigaciones Diabaid, Buenos Aires, Argentina
| | - N Fernández-Liguori
- Hospital Universitario Sanatorio Güemes, Buenos Aires, Argentina.,Hospital Enrique Tornu, Buenos Aires, Argentina
| | - O Garcea
- Hospital Ramos Mejía. Universidad de Buenos Aires, Buenos Aires, Argentina
| | - J P Hryb
- Hospital Carlos G. Durand, Buenos Aires, Argentina
| | - M Jacobo
- Red Integral Asistencial al Paciente con Esclerosis Múltiple (RIAPEM), Santiago del Estero, Argentina
| | - E Kohler
- Fundación Sinapsis, Santa Rosa, Argentina
| | - G G Luetic
- Instituto de Neurociencias de Rosario, Rosario, Argentina
| | - C Mainella
- Hospital Español de Rosario, Rosario, Argentina
| | - M L Menichini
- Sanatorio Británico, Rosario, Argentina.,Hospital Provincial del Centenario, Rosario, Argentina
| | - J Míguez
- Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - P G Nofal
- Hospital de Clínicas Nuestra Señora del Carmen, San Miguel de Tucumán, Argentina
| | - R Piedrabuena
- Instituto Lennox, Córdoba, Argentina.,Clínica Reina Fabiola, Córdoba, Argentina
| | - C Rugilo
- Hospital Británico de Buenos Aires, Buenos Aires, Argentina.,Hospital Dr. Juan P. Garrahan, Buenos Aires, Argentina
| | - M L Saladino
- Instituto de Neurociencias de Buenos Aires (INEBA), Buenos Aires, Argentina
| | - B A Silva
- Hospital Ramos Mejía. Universidad de Buenos Aires, Buenos Aires, Argentina
| | - E Silva
- Predigma. Centro de Medicina Preventiva, Posadas, Argentina
| | - V Sinay
- Fundación Favoloro/INECO, Buenos Aires, Argentina
| | - D Tavolini
- Hospital Provincial del Centenario, Rosario, Argentina.,INECO Neurociencias Oroño, Rosario, Argentina
| | - V A Tkachuk
- Hospital de Clínicas José de San Martín, Buenos Aires, Argentina
| | - A Villa
- Hospital J. M. Ramos Mejía, Buenos Aires, Argentina
| | - C Vrech
- Sanatorio Allende, Córdoba, Argentina
| | - J I Rojas
- Hospital Universitario de CEMIC, Buenos Aires, Argentina.,Centro de Esclerosis Múltiple de Buenos Aires (CEMBA), Buenos Aires, Argentina
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Silva MF, Duarte A, Pereira G, Mateus L, Lopes-da-Costa L, Silva E. Assessment of Campylobacter fetus subsp. venerealis molecular diagnosis using clinical samples of bulls. BMC Vet Res 2020; 16:410. [PMID: 33121492 PMCID: PMC7596931 DOI: 10.1186/s12917-020-02634-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [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: 06/29/2020] [Accepted: 10/21/2020] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Campylobacter fetus subsp. venerealis (Cfv) is the pathogen responsible for Bovine Genital Campylobacteriosis (BGC), a venereal disease of cattle associated with impaired reproductive performance. Although several PCR assays were developed to identify this pathogen, most of them are still poorly evaluated in clinical samples. This study evaluated real-time PCR assays for Cfv detection in preputial samples of bulls (n = 308). RESULTS The detection at the subspecies level (Cfv) compared four assays: two targeting ISCfe1 and two targeting parA gene. The detection at the species level (C. fetus) considered an assay targeting the nahE gene and a commercial kit for C. fetus identification. At the subspecies level, assays directed either to different targets (parA and ISCfe1), or to the same target (ISCfe1 or parA), showed a high percentage of disagreeing results. All samples positive at the subspecies level (n = 169) were negative in C. fetus detection assays, which strongly suggests the horizontal gene transfer of ISCfe1 and parA to other bacterial species. This was confirmed by microbiological isolation of three Campylobacter portucalensis strains responsible for false positive results. Sequences with a high level of identity with ISCfe1 and parA gene of Cfv were identified in C. portucalensis genome. CONCLUSIONS Overall, this study reveals that PCR assays solely directed to a subspecies target originate a high rate of false positive results, due to the presence of parA and ISCfe1 homologous sequences in other bacterial species, namely of the genus Campylobacter. Although the specificity of these methods may be higher if applied to bulls from herds with clinical features of BGC or in other geographical regions, current PCR diagnosis should couple subspecies and species targets, and further research must be envisaged to identify Cfv specific molecular targets.
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Affiliation(s)
- Marta Filipa Silva
- CIISA - Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Avenida da Universidade Técnica, 1300-477, Lisbon, Portugal
| | - Ana Duarte
- CIISA - Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Avenida da Universidade Técnica, 1300-477, Lisbon, Portugal
| | - Gonçalo Pereira
- CIISA - Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Avenida da Universidade Técnica, 1300-477, Lisbon, Portugal
| | - Luísa Mateus
- CIISA - Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Avenida da Universidade Técnica, 1300-477, Lisbon, Portugal
| | - Luís Lopes-da-Costa
- CIISA - Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Avenida da Universidade Técnica, 1300-477, Lisbon, Portugal
| | - Elisabete Silva
- CIISA - Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Avenida da Universidade Técnica, 1300-477, Lisbon, Portugal.
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Zahra A, Sisu C, Silva E, De Aguiar Greca SC, Randeva HS, Chatha K, Kyrou I, Karteris E. Is There a Link between Bisphenol A (BPA), a Key Endocrine Disruptor, and the Risk for SARS-CoV-2 Infection and Severe COVID-19? J Clin Med 2020; 9:E3296. [PMID: 33066495 PMCID: PMC7602132 DOI: 10.3390/jcm9103296] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 10/06/2020] [Accepted: 10/07/2020] [Indexed: 01/08/2023] Open
Abstract
Infection by the severe acute respiratory syndrome (SARS) coronavirus-2 (SARS-CoV-2) is the causative agent of a new disease (COVID-19). The risk of severe COVID-19 is increased by certain underlying comorbidities, including asthma, cancer, cardiovascular disease, hypertension, diabetes, and obesity. Notably, exposure to hormonally active chemicals called endocrine-disrupting chemicals (EDCs) can promote such cardio-metabolic diseases, endocrine-related cancers, and immune system dysregulation and thus, may also be linked to higher risk of severe COVID-19. Bisphenol A (BPA) is among the most common EDCs and exerts its effects via receptors which are widely distributed in human tissues, including nuclear oestrogen receptors (ERα and ERβ), membrane-bound oestrogen receptor (G protein-coupled receptor 30; GPR30), and human nuclear receptor oestrogen-related receptor gamma. As such, this paper focuses on the potential role of BPA in promoting comorbidities associated with severe COVID-19, as well as on potential BPA-induced effects on key SARS-CoV-2 infection mediators, such as angiotensin-converting enzyme 2 (ACE2) and transmembrane serine protease 2 (TMPRSS2). Interestingly, GPR30 appears to exhibit greater co-localisation with TMPRSS2 in key tissues like lung and prostate, suggesting that BPA exposure may impact on the local expression of these SARS-CoV-2 infection mediators. Overall, the potential role of BPA on the risk and severity of COVID-19 merits further investigation.
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Affiliation(s)
- Aeman Zahra
- Biosciences, College of Health, Medicine and Life Sciences, Brunel University London, Uxbridge UB8 3PH, UK; (A.Z.); (C.S.); (E.S.); (S.-C.D.A.G.)
| | - Cristina Sisu
- Biosciences, College of Health, Medicine and Life Sciences, Brunel University London, Uxbridge UB8 3PH, UK; (A.Z.); (C.S.); (E.S.); (S.-C.D.A.G.)
| | - Elisabete Silva
- Biosciences, College of Health, Medicine and Life Sciences, Brunel University London, Uxbridge UB8 3PH, UK; (A.Z.); (C.S.); (E.S.); (S.-C.D.A.G.)
| | - Sophie-Christine De Aguiar Greca
- Biosciences, College of Health, Medicine and Life Sciences, Brunel University London, Uxbridge UB8 3PH, UK; (A.Z.); (C.S.); (E.S.); (S.-C.D.A.G.)
| | - Harpal S. Randeva
- Warwickshire Institute for the Study of Diabetes, Endocrinology and Metabolism (WISDEM), University Hospitals Coventry and Warwickshire NHS Trust, Coventry CV2 2DX, UK; (H.S.R.); (I.K.)
- Aston Medical Research Institute, Aston Medical School, Aston University, Birmingham B4 7ET, UK
- Warwick Medical School, University of Warwick, Coventry CV4 7AL, UK;
| | - Kamaljit Chatha
- Warwick Medical School, University of Warwick, Coventry CV4 7AL, UK;
- Department of Biochemistry and Immunology, University Hospitals Coventry and Warwickshire NHS Trust, Coventry CV2 2DX, UK
| | - Ioannis Kyrou
- Warwickshire Institute for the Study of Diabetes, Endocrinology and Metabolism (WISDEM), University Hospitals Coventry and Warwickshire NHS Trust, Coventry CV2 2DX, UK; (H.S.R.); (I.K.)
- Aston Medical Research Institute, Aston Medical School, Aston University, Birmingham B4 7ET, UK
- Warwick Medical School, University of Warwick, Coventry CV4 7AL, UK;
| | - Emmanouil Karteris
- Biosciences, College of Health, Medicine and Life Sciences, Brunel University London, Uxbridge UB8 3PH, UK; (A.Z.); (C.S.); (E.S.); (S.-C.D.A.G.)
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Neves A, Gordo I, Sequeira V, Vieira AR, Silva E, Silva F, Duarte AM, Mendes S, Ganhão R, Peleteiro MC, Assis C, Rebelo R, Magalhães MF, Gil MM, Gordo LS. Negative impact on the reproductive potential of blue jack mackerel Trachurus picturatus by Kudoa infection of the ovary. Dis Aquat Organ 2020; 141:47-52. [PMID: 32940250 DOI: 10.3354/dao03515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Reproduction of Trachurus picturatus off the western Portuguese coast was studied over 1 yr. During histological analyses, the presence of Kudoa sp. was detected in advanced vitellogenic oocytes. Kudoa infections are known to cause economic loss through the induction of post-mortem liquefaction of fish muscles, but ovarian infection as reported in this study will seriously affect the reproductive potential of the species and thus impact fisheries productivity. Only females showed gonad infection which led to total degradation of advanced vitellogenic oocytes. No macroscopic, somatic or condition indices revealed differences between infected and uninfected females, rendering this infection event a concealed suppression of reproduction.
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Affiliation(s)
- A Neves
- Faculdade de Ciências, Universidade de Lisboa, Bloco C2, Campo Grande, 1749-016 Lisboa, Portugal
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48
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Tan MP, Silva E. The case for breast-conservation treatment rates to be a quality metric. Curr Oncol 2020; 27:e442-e443. [PMID: 32905204 PMCID: PMC7467797 DOI: 10.3747/co.27.6539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
We read the article titled “Mastectomy versus breastconservation therapy: an examination of how individual, clinicopathologic, and physician factors influence decision-making” by Gu et al. […]
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Affiliation(s)
- M P Tan
- MammoCare, 38 Irrawaddy Road, 06-21, 329563 Singapore,
- Department of Surgery, 986345 University of Nebraska Medical Center, Omaha, Nebraska 68198-63445 U.S.A.,
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Gutiérrez-Barrios A, Gheorghe L, Camacho-Freire S, Valencia-Serrano F, Cañadas-Pruaño D, Calle-Pérez G, Alarcón de la Lastra I, Silva E, García-Molinero D, Agarrado-Luna A, Zayas-Ruedas R, Vázquez-García R, Serra A. Primary Angioplasty in a Catastrophic Presentation: Acute Left Main Coronary Total Occlusion-The ATOLMA Registry. J Interv Cardiol 2020; 2020:5246504. [PMID: 32774186 PMCID: PMC7403907 DOI: 10.1155/2020/5246504] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Accepted: 07/01/2020] [Indexed: 02/03/2023] Open
Abstract
OBJECTIVES To determine the outcome predictors of in-hospital mortality in acute total occlusion of the left main coronary artery (ATOLMA) patients referred to emergent angioplasty and to describe the clinical presentation and the long-term outcome of these patients. BACKGROUND ATOLMA is an uncommon angiographic finding that usually leads to a catastrophic presentation. Limited and inconsistent data have been previously reported regarding true ATOLMA, yet comprehensive knowledge remains scarce. METHODS This is a multicenter retrospective cohort that includes patients presenting with myocardial infarction due to a confirmed ATOLMA who underwent emergency percutaneous coronary intervention (PCI). RESULTS In the period of the study, 7930 emergent PCI were performed in the five participating centers, and 46 of them had a true ATOLMA (0.58%). At admission, cardiogenic shock was present in 89% of patients, and cardiopulmonary resuscitation was required in 67.4%. All the patients had right dominance. Angiographic success was achieved in 80.4% of the procedures, 13 patients (28.2%) died during the catheterization, and the in-hospital mortality rate was 58.6% (27/46). At one-year and at the final follow-up, 18 patients (39%) were alive, including four cases successfully transplanted. Multivariate analysis showed that postprocedural TIMI flow was the only independent predictor of in-hospital mortality (OR 0.23, (95% CI 0.1-0.36), p < 0.001). CONCLUSIONS Our study confirms that the clinical presentation of ATOLMA is catastrophic, presenting a high in-hospital mortality rate; nevertheless, primary angioplasty in this setting is feasible. Postprocedural TIMI flow resulted as the only independent predictor of in-hospital mortality. In-hospital survivors presented an encouraging outcome. ATOLMA and left dominance could be incompatible with life.
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Affiliation(s)
- A. Gutiérrez-Barrios
- Departamento de Cardiología Hospital Universitario Puerta del Mar, Cádiz, Spain
- Instituto de Investigación e Innovación en Ciencias Biomédicas de Cádiz, INiBICA, Cádiz, Spain
| | - L. Gheorghe
- Departamento de Cardiología Hospital Universitario Puerta del Mar, Cádiz, Spain
- Instituto de Investigación e Innovación en Ciencias Biomédicas de Cádiz, INiBICA, Cádiz, Spain
| | - S. Camacho-Freire
- Departamento de Cardiología Hospital Juan Ramón Jiménez, Huelva, Spain
| | | | - D. Cañadas-Pruaño
- Instituto de Investigación e Innovación en Ciencias Biomédicas de Cádiz, INiBICA, Cádiz, Spain
- Departamento de Cardiología Hospital de Jerez, Cádiz, Spain
| | - G. Calle-Pérez
- Departamento de Cardiología Hospital Universitario Puerta del Mar, Cádiz, Spain
- Instituto de Investigación e Innovación en Ciencias Biomédicas de Cádiz, INiBICA, Cádiz, Spain
| | | | - E. Silva
- Instituto de Investigación e Innovación en Ciencias Biomédicas de Cádiz, INiBICA, Cádiz, Spain
| | - D. García-Molinero
- Departamento de Cardiología Hospital Universitario Puerta del Mar, Cádiz, Spain
| | | | - R. Zayas-Ruedas
- Departamento de Cardiología Hospital Universitario Puerta del Mar, Cádiz, Spain
- Instituto de Investigación e Innovación en Ciencias Biomédicas de Cádiz, INiBICA, Cádiz, Spain
| | - R. Vázquez-García
- Departamento de Cardiología Hospital Universitario Puerta del Mar, Cádiz, Spain
- Instituto de Investigación e Innovación en Ciencias Biomédicas de Cádiz, INiBICA, Cádiz, Spain
| | - A. Serra
- Departamento de Cardiología Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
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50
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Estébanez A, Pérez-Santiago L, Silva E, Guillen-Climent S, García-Vázquez A, Ramón MD. Cutaneous manifestations in COVID-19: a new contribution. J Eur Acad Dermatol Venereol 2020; 34:e250-e251. [PMID: 32294264 PMCID: PMC7262266 DOI: 10.1111/jdv.16474] [Citation(s) in RCA: 146] [Impact Index Per Article: 36.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Revised: 04/06/2020] [Accepted: 04/08/2020] [Indexed: 01/08/2023]
Affiliation(s)
- A Estébanez
- Department of Dermatology, Clinical University Hospital, University of Valencia, Valencia, Spain
| | - L Pérez-Santiago
- Department of Surgery, Clinical University Hospital, University of Valencia, Valencia, Spain
| | - E Silva
- Department of Dermatology, Clinical University Hospital, University of Valencia, Valencia, Spain
| | - S Guillen-Climent
- Department of Dermatology, Clinical University Hospital, University of Valencia, Valencia, Spain
| | - A García-Vázquez
- Department of Dermatology, Clinical University Hospital, University of Valencia, Valencia, Spain
| | - M D Ramón
- Department of Dermatology, Clinical University Hospital, University of Valencia, Valencia, Spain
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