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Saucy A, Ortega N, Tonne C. Residential relocation to assess impact of changes in the living environment on cardio-respiratory health: A narrative literature review with considerations for exposome research. Environ Res 2024; 244:117890. [PMID: 38081343 DOI: 10.1016/j.envres.2023.117890] [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: 09/27/2023] [Revised: 11/23/2023] [Accepted: 12/05/2023] [Indexed: 12/25/2023]
Abstract
Residential relocation studies have become increasingly valuable tools for evaluating the effects of changing living environments on human health, but little is known about their application to multiple aspects of the living environment and the most appropriate methodology. This narrative review explores the utility of residential relocation as a natural experiment for studying the impact of changing urban exposures on cardio-metabolic health in high-income settings. It provides a comprehensive overview of the use of residential relocation studies, evaluates their methodological approaches, and synthesizes findings related to health behaviors and cardio-metabolic outcomes. Our search identified 43 relevant studies published between January 1995 and February 2023, from eight countries, predominantly the USA, Canada, and Australia. The majority of eligible studies were published between 2012 and 2021 and examined changes in various domains of the living environment, such as walkability, the built and social environments, but rarely combinations of exposures. Included studies displayed heterogeneity in design and outcomes, 25 involving only movers and 18 considering both movers and non-movers. To mitigate the issue of residential self-selection bias, most studies employed a "change-in-change" design and adjusted for baseline covariates but only a fraction of them accounted for time-varying confounding. Relocation causes simultaneous changes in various features of the living environment, which presents an opportunity for exposome research to establish causal relationships, using large datasets with increased statistical power and a wide range of health outcomes, behaviors and biomarkers. Residential relocation is not a random process. Thus, studies focusing on living environment characteristics need to carefully select time-varying covariates and reference group. Overall, this review informs future research by guiding choices in study design, data requirements, and statistical methodologies. Ultimately, it contributes to the advancement of the urban exposome field and enhances our understanding of the complex relationship between urban environments and human health.
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Affiliation(s)
- Apolline Saucy
- Barcelona Institute for Global Health (ISGlobal), Barcelona, Spain; Universitat Pompeu Fabra, Barcelona, Spain; CIBER Epidemiología y Salud Pública, Madrid, Spain.
| | - Natalia Ortega
- Barcelona Institute for Global Health (ISGlobal), Barcelona, Spain; Institute of Primary Health Care (BIHAM), University of Bern, Bern, Switzerland; Population Health Laboratory (#PopHealthLab), University of Fribourg, Fribourg, Switzerland
| | - Cathryn Tonne
- Barcelona Institute for Global Health (ISGlobal), Barcelona, Spain; Universitat Pompeu Fabra, Barcelona, Spain; CIBER Epidemiología y Salud Pública, Madrid, Spain.
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Ortega N, Carmeli C, Efthimiou O, Beer JH, Gunten AV, Preisig M, Zullo L, Vaucher J, Vollenweider P, Marques-Vidal P, Rodondi N, Chiolero A, Chocano-Bedoya PO. Effect of dairy consumption on cognition in older adults: A population-based cohort study. J Nutr Health Aging 2024; 28:100031. [PMID: 38388110 DOI: 10.1016/j.jnha.2023.100031] [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: 08/31/2023] [Accepted: 12/08/2023] [Indexed: 02/24/2024]
Abstract
OBJECTIVE We aimed to assess the effect on cognitive function of adding dairy (total, fermented, non-fermented, full fat, low fat, and sugary) to the diet and of substituting some food groups for dairy. DESIGN Secondary analysis of a prospective population-based cohort study. PARTICIPANTS We analyzed data from 1334 cognitively healthy participants (median age 67 years at baseline) with a mean follow-up of 5.6 years from the CoLaus|PsyColaus cohort in Lausanne, Switzerland. MEASUREMENTS The participants completed a food frequency questionnaire at baseline and cognitive tests at baseline and at follow-up. Clinical dementia rating was the primary outcome. Subjective cognitive decline, memory, verbal fluency, executive and motor functions were secondary outcomes. METHODS Our exposure was the consumption of total and 5 sub-types of dairy products (g/d). We used marginal structural models to compute average causal effects of 1) increasing dairy consumption by 100 g/d and 2) substituting 100 g/d of meat, fish, eggs, fruits and vegetables with dairy on the outcomes. We used inverse probability of the treatment and lost to follow-up weighting to account for measured confounding and non-random loss to follow-up. RESULTS Overall, the effects of adding dairy products to the diet on cognition were negligible and imprecise. No substitution had a substantial and consistent effect on clinical dementia rating. The substitution of fish [11.7% (-3% to 26.5%)] and eggs [18% (2.3%-33.7%)] for dairy products could negatively impact verbal memory and neurolinguistic processes. CONCLUSION We found no effect of adding dairy to the diet or substituting meat, vegetables or fruit for dairy on cognitive function in this cohort of older adults. The substitution of fish and eggs for dairy could have a negative effect on some secondary outcomes, but more studies modeling food substitutions are needed to confirm these results.
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Affiliation(s)
- Natalia Ortega
- Institute for Primary Health Care (BIHAM), University of Bern, Bern, Switzerland; Population Health Laboratory (#PopHealthLab), University of Fribourg, Fribourg, Switzerland; Graduate School for Health Sciences, University of Bern, Bern, Switzerland.
| | - Cristian Carmeli
- Population Health Laboratory (#PopHealthLab), University of Fribourg, Fribourg, Switzerland
| | - Orestis Efthimiou
- Institute for Primary Health Care (BIHAM), University of Bern, Bern, Switzerland; Institute of Social and Preventive Medicine (ISPM), University of Bern, Bern, Switzerland
| | - Jürg-Hans Beer
- University of Zurich and Kantonsspital Baden, Baden, Switzerland
| | - Armin von Gunten
- Service of Old Age Psychiatry, Department of Psychiatry, Lausanne University Hospital, University of Lausanne, Prilly, Switzerland
| | - Martin Preisig
- Department of Psychiatry, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Leonardo Zullo
- Service of Old Age Psychiatry, Department of Psychiatry, Lausanne University Hospital, University of Lausanne, Prilly, Switzerland
| | - Julien Vaucher
- Department of Medicine, Internal Medicine, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland; Department of Medicine and Specialties, Internal Medicine, Fribourg Hospital and University of Fribourg, Fribourg, Switzerland
| | - Peter Vollenweider
- Department of Medicine, Internal Medicine, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Pedro Marques-Vidal
- Department of Medicine, Internal Medicine, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Nicolas Rodondi
- Institute for Primary Health Care (BIHAM), University of Bern, Bern, Switzerland; Department of General Internal Medicine, Inselspital University Hospital Bern, University of Bern, Bern, Switzerland
| | - Arnaud Chiolero
- Population Health Laboratory (#PopHealthLab), University of Fribourg, Fribourg, Switzerland; School of Population and Global Health, McGill University, Montreal, Canada
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Ortega N, Arcenillas-Hernández I, Villa MI, González MD, Caro MR. Molecular identification of Borrelia and SFG Rickettsia spp. in hard ticks parasitizing domestic and wild animals in southeastern Spain. Vet Res Commun 2024:10.1007/s11259-023-10292-x. [PMID: 38231370 DOI: 10.1007/s11259-023-10292-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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 12/29/2023] [Indexed: 01/18/2024]
Abstract
Lyme disease and the spotted fever group rickettsiosis, involve bacteria belonging to the genus Borrelia and Rickettsia, respectively. These infections are the most important tick-borne zoonotic diseases involving ticks as vectors. Descriptive and epidemiological studies are essential to determine the animal hosts involved in the maintenance of these diseases. In the present study, 94 tick pool samples from 15 different host species located in the Region of Murcia (southeastern, Spain) were analysed. Ticks were morphologically identified as: Dermacentor marginatus, Hyalomma lusitanicum, Ixodes Ricinus, and Rhipicephalus sanguineus. Our results showed that 5.3% of the tick pool samples carried Borrelia spp. DNA, and 20.2% carried SFG Rickettsia DNA. In every hard tick pool Spot Fever Group (SFG) Rickettsia spp. DNA were detected, except for H. lusitanicum. Likewise, D. marginatum was the only species in which Borrelia spp. DNA was not detected. Barbary sheep and wild boar were the host species in which tick pools showed DNA presence of both pathogens. This study increases the knowledge about the presence of Borrelia spp. DNA and SFG Rickettsia spp. DNA in different hard tick species from this geographical area.
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Affiliation(s)
- N Ortega
- Dpto. de Sanidad Animal, Facultad de Veterinaria, Campus de Excelencia Internacional, "Campus Mare Nostrum" Universidad de Murcia, Espinardo, Murcia, 30100, Spain.
| | - I Arcenillas-Hernández
- Dpto. de Sanidad Animal, Facultad de Veterinaria, Campus de Excelencia Internacional, "Campus Mare Nostrum" Universidad de Murcia, Espinardo, Murcia, 30100, Spain
| | - M I Villa
- Dirección General de Salud Pública y Adicciones. Servicio de Seguridad Alimentaria y Zoonosis, Consejería de Salud de la Comunidad Autónoma de Murcia, Murcia, Spain
| | - M D González
- Dirección General de Salud Pública y Adicciones. Servicio de Seguridad Alimentaria y Zoonosis, Consejería de Salud de la Comunidad Autónoma de Murcia, Murcia, Spain
| | - M R Caro
- Dpto. de Sanidad Animal, Facultad de Veterinaria, Campus de Excelencia Internacional, "Campus Mare Nostrum" Universidad de Murcia, Espinardo, Murcia, 30100, Spain
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Villoz F, Filippini T, Ortega N, Kopp-Heim D, Voortman T, Blum MR, Del Giovane C, Vinceti M, Rodondi N, Chocano-Bedoya PO. Dairy Intake and Risk of Cognitive Decline and Dementia: A Systematic Review and Dose-Response Meta-Analysis of Prospective Studies. Adv Nutr 2024; 15:100160. [PMID: 38043604 PMCID: PMC10788406 DOI: 10.1016/j.advnut.2023.100160] [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: 04/12/2023] [Revised: 11/20/2023] [Accepted: 11/27/2023] [Indexed: 12/05/2023] Open
Abstract
Dairy intake may influence cognition through several molecular pathways. However, epidemiologic studies yield inconsistent results, and no dose-response meta-analysis has been conducted yet. Therefore, we performed a systematic review with a dose-response meta-analysis about the association between dairy intake and cognitive decline or incidence of dementia. We investigated prospective studies with a follow-up ≥6 mo on cognitive decline or dementia incidence in adults without known chronic conditions through a systematic search of Embase, Medline, Cochrane Library, Web of Science, and Google Scholar from inception to 11 July 2023. We evaluated the dose-response association using a random-effects model. We identified 15 eligible cohort studies with >300,000 participants and a median follow-up of 11.4 y. We observed a negative nonlinear association between cognitive decline/dementia incidence and dairy intake as assessed through the quantity of consumption, with the nadir at ∼150 g/d (risk ratio: 0.88; 95% confidence interval: 0.78, 0.99). Conversely, we found an almost linear negative association when we considered the frequency of consumption (risk ratio for linear trend: 0.84; 95% confidence interval: 0.77, 0.92 for 1 time/d increase of dairy products). Stratified analysis by dairy products showed different shapes of the association with linear inverse relationship for milk intake, whereas possibly nonlinear for cheese. The inverse association was limited to Asian populations characterized by generally lower intake of dairy products, compared with the null association reported by European studies. In conclusion, our study suggests a nonlinear inverse association between dairy intake and cognitive decline or dementia, also depending on dairy types and population characteristics, although the heterogeneity was still high in overall and several subgroup analyses. Additional studies should be performed on this topic, including a wider range of intake and types of dairy products, to confirm a potential preventing role of dairy intake on cognitive decline and identify ideal intake doses. This review was registered at PROSPERO as CRD42020192395.
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Affiliation(s)
- Fanny Villoz
- Institute of Primary Health Care (BIHAM), University of Bern, Bern, Switzerland; Department of General Internal Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Tommaso Filippini
- Section of Public Health, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy; School of Public Health, University of California Berkeley, Berkeley, CA, United States
| | - Natalia Ortega
- Institute of Primary Health Care (BIHAM), University of Bern, Bern, Switzerland; Population Health Laboratory, University of Fribourg, Fribourg, Switzerland
| | - Doris Kopp-Heim
- Public Health and Primary Care Library, University Library of Bern, University of Bern, Bern, Switzerland
| | - Trudy Voortman
- Department of Epidemiology, Erasmus MC University Medical Center, Rotterdam, the Netherlands
| | - Manuel R Blum
- Institute of Primary Health Care (BIHAM), University of Bern, Bern, Switzerland; Department of General Internal Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Cinzia Del Giovane
- Institute of Primary Health Care (BIHAM), University of Bern, Bern, Switzerland; Population Health Laboratory, University of Fribourg, Fribourg, Switzerland; Department of Medical and Surgical Sciences for Children and Adults, University-Hospital of Modena and Reggio Emilia, Modena, Italy
| | - Marco Vinceti
- Section of Public Health, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy; Department of Epidemiology, Boston University School of Public Health, Boston, MA, United States
| | - Nicolas Rodondi
- Institute of Primary Health Care (BIHAM), University of Bern, Bern, Switzerland; Department of General Internal Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Patricia O Chocano-Bedoya
- Institute of Primary Health Care (BIHAM), University of Bern, Bern, Switzerland; Population Health Laboratory, University of Fribourg, Fribourg, Switzerland.
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Muñoz-Hernández C, Wipf A, Ortega N, Barberá GG, Salinas J, Gonzálvez M, Martínez-Carrasco C, Candela MG. Serological and molecular survey of canine distemper virus in red foxes (Vulpes vulpes): Exploring cut-off values and the use of protein A in ELISA tests. Prev Vet Med 2023; 221:106075. [PMID: 37984159 DOI: 10.1016/j.prevetmed.2023.106075] [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: 07/27/2023] [Revised: 10/18/2023] [Accepted: 11/07/2023] [Indexed: 11/22/2023]
Abstract
The wide distribution and ecological plasticity of the red fox (Vulpes vulpes) make it a potential reservoir for many infectious diseases shared with domestic and wild carnivores. One of such diseases is canine distemper, which is caused by an RNA virus and its main domestic reservoir is the dog. However, other carnivores can also participate in its maintenance, as shown by the recent upsurge of reported cases in wildlife in many parts of the world, and by the fact that red foxes may act as true reservoirs for canine distemper virus (CDV). The lack of validated serological tests for wildlife or other non-target species may be a handicap for monitoring this virus. In this study, serological assays were compared in 147 red fox sera using a commercial ELISA validated for its use in dogs and a non-specific modified ELISA with Protein A peroxidase conjugate to detect bound antibodies. In addition, the presence of CDV RNA in brain, spleen, lung, and liver samples from 144 foxes was investigated by a RT-qPCR. Through the comparison of the results of both ELISAs and the use of a finite mixture model of the optical density values obtained by both techniques, we adjusted the cut-off point of the commercial ELISA to obtain the seroprevalence in foxes. The overall seroprevalence detected was 53.7% (79/147) and 57.1% (84/147) by the commercial and modified ELISA, respectively, with a moderate agreement according to Cohen's Kappa statistic (κ = 0.491, z = 5.97, p < 0.0001). CDV RNA was detected in 30 out of 144 foxes, which resulted in 20.8% of CDV-infected foxes. At individual level, the results obtained by relating the serological status and the presence/absence of RNA in different organs were explained in terms of the pathogenesis of the infection. Our results highlight the convenience of adjusting the cut-off point when using an ELISA assay developed in domestic dogs for its use in foxes. Moreover, Protein A is confirmed to be a good alternative to be used in red foxes, presenting a good reactivity towards its IgG.
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Affiliation(s)
- C Muñoz-Hernández
- Departamento de Sanidad Animal, Facultad de Veterinaria, Campus de Excelencia Internacional Regional "Campus Mare Nostrum", Universidad de Murcia, 30100 Murcia, Spain; Grupo Sanidad y Biotecnología (SaBio), Instituto de Investigación en Recursos Cinegéticos, IREC (CSIC-UCLM-JCCM), 13005 Ciudad Real, Spain.
| | - A Wipf
- Departamento de Sanidad Animal, Facultad de Veterinaria, Campus de Excelencia Internacional Regional "Campus Mare Nostrum", Universidad de Murcia, 30100 Murcia, Spain.
| | - N Ortega
- Departamento de Sanidad Animal, Facultad de Veterinaria, Campus de Excelencia Internacional Regional "Campus Mare Nostrum", Universidad de Murcia, 30100 Murcia, Spain.
| | - G G Barberá
- Department of Water and Soil Conservation, CEBAS-CSIC, Campus Universitario, Espinardo 30100, Spain.
| | - J Salinas
- Departamento de Sanidad Animal, Facultad de Veterinaria, Campus de Excelencia Internacional Regional "Campus Mare Nostrum", Universidad de Murcia, 30100 Murcia, Spain.
| | - M Gonzálvez
- Departamento de Sanidad Animal, Facultad de Veterinaria, Campus de Excelencia Internacional Regional "Campus Mare Nostrum", Universidad de Murcia, 30100 Murcia, Spain; Departamento de Sanidad Animal, Grupo de Investigación en Sanidad Animal y Zoonosis (GISAZ), Universidad de Córdoba, 14014 Córdoba, Spain.
| | - C Martínez-Carrasco
- Departamento de Sanidad Animal, Facultad de Veterinaria, Campus de Excelencia Internacional Regional "Campus Mare Nostrum", Universidad de Murcia, 30100 Murcia, Spain.
| | - M G Candela
- Departamento de Sanidad Animal, Facultad de Veterinaria, Campus de Excelencia Internacional Regional "Campus Mare Nostrum", Universidad de Murcia, 30100 Murcia, Spain.
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Barzola E, Cornejo L, Gómez N, Pigem A, Julià D, Ortega N, Delisau O, Bobb KA, Farrés R, Planellas P. Comparative analysis of short-term outcomes and oncological results between robotic-assisted and laparoscopic surgery for rectal cancer by multiple surgeon implementation: a propensity score-matched analysis. J Robot Surg 2023; 17:3013-3023. [PMID: 37924415 DOI: 10.1007/s11701-023-01736-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Accepted: 09/26/2023] [Indexed: 11/06/2023]
Abstract
Robotic-assisted surgery (RAS) is becoming increasingly common for the surgical treatment of rectal cancer. However, the use and implementation of robotic surgery remains controversial. This study aimed to compare the short-term outcomes of robotic surgery, focusing on pathological results and disease-free survival (DFS), in our cohort with initial robotic experience by multiple surgeon implementation. This retrospective study enrolled 571 patients diagnosed with rectal cancer, who were treated with chemoradiotherapy and surgery between January 2015 and December 2021. Surgical outcomes after RAS and laparoscopic surgery (LS) were compared using a propensity score-matching (PSM) analysis. After matching, 200 patients (100 in each group) were included. The median operative time was significantly longer in the RAS group than in the LS group (p < 0.001). The conversion and morbidity rates were similar between the groups. A significantly higher rate of complete mesorectal excision (92% vs. 72%; p = 0.001) and number of lymph nodes harvested (p = 0.009) was observed in the RAS group. There were no statistically significant differences between the groups regarding circumferential and distal resection margin involvement. The 3-year overall and disease-free survival rate was similar between the two groups (p = 0.849 and p = 0.582, respectively). Two patients in the LS group developed local recurrence and 27 patients (15.4%) developed metastatic disease. Multivariate analysis showed that tumor stage III was the only factor associated with disease-free survival (HR, 9.34; (95% CI 1.13-77.1), p = 0.038). RAS and LS showed similar outcomes in terms of perioperative, anatomopathological, and disease-free survival, after multiple surgeon implementations.
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Affiliation(s)
- E Barzola
- Colorectal Surgery Unit, Department of General and Digestive Surgery, University Hospital of Girona, Department of Medical Sciences, Faculty of Medicine, University of Girona, Girona Biomedical Research Institute (IDIBGI), Girona, Spain
| | - L Cornejo
- Girona Biomedical Research Institute (IDIBGI), Girona, Spain
| | - N Gómez
- Colorectal Surgery Unit, Department of General and Digestive Surgery, University Hospital of Girona, Department of Medical Sciences, Faculty of Medicine, University of Girona, Girona Biomedical Research Institute (IDIBGI), Girona, Spain
| | - A Pigem
- Colorectal Surgery Unit, Department of General and Digestive Surgery, University Hospital of Girona, Department of Medical Sciences, Faculty of Medicine, University of Girona, Girona Biomedical Research Institute (IDIBGI), Girona, Spain
| | - D Julià
- Colorectal Surgery Unit, Department of General and Digestive Surgery, University Hospital of Girona, Department of Medical Sciences, Faculty of Medicine, University of Girona, Girona Biomedical Research Institute (IDIBGI), Girona, Spain
| | - N Ortega
- Colorectal Surgery Unit, Department of General and Digestive Surgery, University Hospital of Girona, Department of Medical Sciences, Faculty of Medicine, University of Girona, Girona Biomedical Research Institute (IDIBGI), Girona, Spain
| | - O Delisau
- Colorectal Surgery Unit, Department of General and Digestive Surgery, University Hospital of Girona, Department of Medical Sciences, Faculty of Medicine, University of Girona, Girona Biomedical Research Institute (IDIBGI), Girona, Spain
| | - K A Bobb
- Department of Clinical Surgical Sciences, Faculty of Medical Sciences, University of the West Indies-St. Augustine, Eric Williams Medical Sciences Complex, Mount Hope, Trinidad, West Indies, Trinidad and Tobago
| | - R Farrés
- Colorectal Surgery Unit, Department of General and Digestive Surgery, University Hospital of Girona, Department of Medical Sciences, Faculty of Medicine, University of Girona, Girona Biomedical Research Institute (IDIBGI), Girona, Spain
| | - P Planellas
- Colorectal Surgery Unit, Department of General and Digestive Surgery, University Hospital of Girona, Department of Medical Sciences, Faculty of Medicine, University of Girona, Girona Biomedical Research Institute (IDIBGI), Girona, Spain.
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Planellas P, Cornejo L, Ortega N, Delisau O, Farrés R. Transanal minimally invasive surgery for rectal anastomotic complications after colorectal surgery. Tech Coloproctol 2023; 27:1123-1124. [PMID: 37358670 DOI: 10.1007/s10151-023-02834-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 06/13/2023] [Indexed: 06/27/2023]
Affiliation(s)
- P Planellas
- Colorectal Surgery Unit, Department of General and Digestive Surgery, University Hospital of Girona, Girona, Spain.
- Department of Medical Sciences, Faculty of Medicine, University of Girona, Girona Biomedical Research Institute (IDIBGI), Avinguda de França S/N, 17007, Girona, Spain.
- Biomedical Research Institute (IDIBGI), Girona, Spain.
| | - L Cornejo
- Biomedical Research Institute (IDIBGI), Girona, Spain
| | - N Ortega
- Colorectal Surgery Unit, Department of General and Digestive Surgery, University Hospital of Girona, Girona, Spain
- Department of Medical Sciences, Faculty of Medicine, University of Girona, Girona Biomedical Research Institute (IDIBGI), Avinguda de França S/N, 17007, Girona, Spain
| | - O Delisau
- Colorectal Surgery Unit, Department of General and Digestive Surgery, University Hospital of Girona, Girona, Spain
- Department of Medical Sciences, Faculty of Medicine, University of Girona, Girona Biomedical Research Institute (IDIBGI), Avinguda de França S/N, 17007, Girona, Spain
| | - R Farrés
- Colorectal Surgery Unit, Department of General and Digestive Surgery, University Hospital of Girona, Girona, Spain
- Department of Medical Sciences, Faculty of Medicine, University of Girona, Girona Biomedical Research Institute (IDIBGI), Avinguda de França S/N, 17007, Girona, Spain
- Biomedical Research Institute (IDIBGI), Girona, Spain
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Tancredi S, Chiolero A, Wagner C, Haller ML, Chocano-Bedoya P, Ortega N, Rodondi N, Kaufmann L, Lorthe E, Baysson H, Stringhini S, Michel G, Lüdi C, Harju E, Frank I, Imboden M, Witzig M, Keidel D, Probst-Hensch N, Amati R, Albanese E, Corna L, Crivelli L, Vincentini J, Gonseth Nusslé S, Bochud M, D'Acremont V, Kohler P, Kahlert CR, Cusini A, Frei A, Puhan MA, Geigges M, Kaufmann M, Fehr J, Cullati S. Seroprevalence trends of anti-SARS-CoV-2 antibodies and associated risk factors: a population-based study. Infection 2023; 51:1453-1465. [PMID: 36870034 PMCID: PMC9985433 DOI: 10.1007/s15010-023-02011-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 02/22/2023] [Indexed: 03/05/2023]
Abstract
PURPOSE We aimed to assess the seroprevalence trends of SARS-CoV-2 antibodies in several Swiss cantons between May 2020 and September 2021 and investigate risk factors for seropositivity and their changes over time. METHODS We conducted repeated population-based serological studies in different Swiss regions using a common methodology. We defined three study periods: May-October 2020 (period 1, prior to vaccination), November 2020-mid-May 2021 (period 2, first months of the vaccination campaign), and mid-May-September 2021 (period 3, a large share of the population vaccinated). We measured anti-spike IgG. Participants provided information on sociodemographic and socioeconomic characteristics, health status, and adherence to preventive measures. We estimated seroprevalence with a Bayesian logistic regression model and the association between risk factors and seropositivity with Poisson models. RESULTS We included 13,291 participants aged 20 and older from 11 Swiss cantons. Seroprevalence was 3.7% (95% CI 2.1-4.9) in period 1, 16.2% (95% CI 14.4-17.5) in period 2, and 72.0% (95% CI 70.3-73.8) in period 3, with regional variations. In period 1, younger age (20-64) was the only factor associated with higher seropositivity. In period 3, being aged ≥ 65 years, with a high income, retired, overweight or obese or with other comorbidities, was associated with higher seropositivity. These associations disappeared after adjusting for vaccination status. Seropositivity was lower in participants with lower adherence to preventive measures, due to a lower vaccination uptake. CONCLUSIONS Seroprevalence sharply increased over time, also thanks to vaccination, with some regional variations. After the vaccination campaign, no differences between subgroups were observed.
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Affiliation(s)
- Stefano Tancredi
- Population Health Laboratory (#PopHealthLab), University of Fribourg, Route Des Arsenaux 41, 1700, Fribourg, Switzerland.
| | - Arnaud Chiolero
- Population Health Laboratory (#PopHealthLab), University of Fribourg, Route Des Arsenaux 41, 1700, Fribourg, Switzerland
- School of Population and Global Health, McGill University, Montreal, Canada
- Institute of Primary Health Care (BIHAM), University of Bern, Bern, Switzerland
| | - Cornelia Wagner
- Population Health Laboratory (#PopHealthLab), University of Fribourg, Route Des Arsenaux 41, 1700, Fribourg, Switzerland
| | - Moa Lina Haller
- Institute of Primary Health Care (BIHAM), University of Bern, Bern, Switzerland
- Department of General Internal Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Patricia Chocano-Bedoya
- Population Health Laboratory (#PopHealthLab), University of Fribourg, Route Des Arsenaux 41, 1700, Fribourg, Switzerland
- Institute of Primary Health Care (BIHAM), University of Bern, Bern, Switzerland
| | - Natalia Ortega
- Population Health Laboratory (#PopHealthLab), University of Fribourg, Route Des Arsenaux 41, 1700, Fribourg, Switzerland
- Institute of Primary Health Care (BIHAM), University of Bern, Bern, Switzerland
| | - Nicolas Rodondi
- Institute of Primary Health Care (BIHAM), University of Bern, Bern, Switzerland
- Department of General Internal Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Laurent Kaufmann
- Cantonal Public Health Service of the Canton of Neuchâtel, Neuchâtel, Switzerland
| | - Elsa Lorthe
- Unit of Population Epidemiology, Division of Primary Care Medicine, Geneva University Hospitals, Geneva, Switzerland
| | - Hélène Baysson
- Unit of Population Epidemiology, Division of Primary Care Medicine, Geneva University Hospitals, Geneva, Switzerland
- Department of Health and Community Medicine, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Silvia Stringhini
- Unit of Population Epidemiology, Division of Primary Care Medicine, Geneva University Hospitals, Geneva, Switzerland
- Department of Health and Community Medicine, Faculty of Medicine, University of Geneva, Geneva, Switzerland
- University Center for General Medicine and Public Health, University of Lausanne, Lausanne, Switzerland
| | - Gisela Michel
- Department Health Sciences and Medicine, University of Lucerne, Lucerne, Switzerland
| | - Chantal Lüdi
- Department Health Sciences and Medicine, University of Lucerne, Lucerne, Switzerland
| | - Erika Harju
- Department Health Sciences and Medicine, University of Lucerne, Lucerne, Switzerland
- Clinical Trial Unit, Lucerne Cantonal Hospital, Lucerne, Switzerland
| | - Irene Frank
- Clinical Trial Unit, Lucerne Cantonal Hospital, Lucerne, Switzerland
| | - Medea Imboden
- Swiss Tropical and Public Health Institute, Allschwil, Switzerland
- University of Basel, Basel, Switzerland
| | - Melissa Witzig
- Swiss Tropical and Public Health Institute, Allschwil, Switzerland
- University of Basel, Basel, Switzerland
| | - Dirk Keidel
- Swiss Tropical and Public Health Institute, Allschwil, Switzerland
- University of Basel, Basel, Switzerland
| | - Nicole Probst-Hensch
- Swiss Tropical and Public Health Institute, Allschwil, Switzerland
- University of Basel, Basel, Switzerland
| | - Rebecca Amati
- Institute of Public Health, Faculty of Biomedical Sciences, Università Della Svizzera Italiana, Lugano, Switzerland
| | - Emiliano Albanese
- Institute of Public Health, Faculty of Biomedical Sciences, Università Della Svizzera Italiana, Lugano, Switzerland
| | - Laurie Corna
- Department of Business Economics, Health and Social Care, University of Applied Sciences and Arts of Southern Switzerland, Manno, Switzerland
| | - Luca Crivelli
- Department of Business Economics, Health and Social Care, University of Applied Sciences and Arts of Southern Switzerland, Manno, Switzerland
| | - Julia Vincentini
- Center for Primary Care and Public Health (Unisanté), University of Lausanne, Lausanne, Switzerland
| | - Semira Gonseth Nusslé
- Center for Primary Care and Public Health (Unisanté), University of Lausanne, Lausanne, Switzerland
| | - Murielle Bochud
- Center for Primary Care and Public Health (Unisanté), University of Lausanne, Lausanne, Switzerland
| | - Valérie D'Acremont
- Swiss Tropical and Public Health Institute, Allschwil, Switzerland
- Center for Primary Care and Public Health (Unisanté), University of Lausanne, Lausanne, Switzerland
| | - Philipp Kohler
- Division of Infectious Diseases and Hospital Epidemiology, Cantonal Hospital St Gallen, St Gallen, Switzerland
| | - Christian R Kahlert
- Division of Infectious Diseases and Hospital Epidemiology, Cantonal Hospital St Gallen, St Gallen, Switzerland
- Department of Infectious Diseases and Hospital Epidemiology, Children's Hospital of Eastern Switzerland, St. Gallen, Switzerland
| | - Alexia Cusini
- Division of Infectious Diseases, Cantonal Hospital of Grisons, Chur, Switzerland
| | - Anja Frei
- Epidemiology, Biostatistics and Prevention Institute, University of Zurich, Zurich, Switzerland
| | - Milo A Puhan
- Epidemiology, Biostatistics and Prevention Institute, University of Zurich, Zurich, Switzerland
| | - Marco Geigges
- Epidemiology, Biostatistics and Prevention Institute, University of Zurich, Zurich, Switzerland
| | - Marco Kaufmann
- Epidemiology, Biostatistics and Prevention Institute, University of Zurich, Zurich, Switzerland
| | - Jan Fehr
- Epidemiology, Biostatistics and Prevention Institute, University of Zurich, Zurich, Switzerland
| | - Stéphane Cullati
- Population Health Laboratory (#PopHealthLab), University of Fribourg, Route Des Arsenaux 41, 1700, Fribourg, Switzerland
- Department of Readaptation and Geriatrics, University of Geneva, Geneva, Switzerland
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9
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Sabatini S, Kaufmann M, Fadda M, Tancredi S, Noor N, Van Der Linden BWA, Cullati S, Frank I, Michel G, Harju E, Luedi C, Frei A, Ballouz T, Menges D, Fehr J, Kohler P, Kahlert CR, Scheu V, Ortega N, Chocano-Bedoya P, Rodondi N, Stringhini S, Baysson H, Lorthe E, Zufferey MC, Suggs LS, Albanese E, Vincentini J, Bochud M, D’Acremont V, Nusslé SG, Imboden M, Keidel D, Witzig M, Probst-Hensch N, von Wyl V. Factors Associated With COVID-19 Non-Vaccination in Switzerland: A Nationwide Study. Int J Public Health 2023; 68:1605852. [PMID: 37284510 PMCID: PMC10239801 DOI: 10.3389/ijph.2023.1605852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Accepted: 05/10/2023] [Indexed: 06/08/2023] Open
Abstract
Objectives: We compared socio-demographic characteristics, health-related variables, vaccination-related beliefs and attitudes, vaccination acceptance, and personality traits of individuals who vaccinated against COVID-19 and who did not vaccinate by December 2021. Methods: This cross-sectional study used data of 10,642 adult participants from the Corona Immunitas eCohort, an age-stratified random sample of the population of several cantons in Switzerland. We used multivariable logistic regression models to explore associations of vaccination status with socio-demographic, health, and behavioral factors. Results: Non-vaccinated individuals represented 12.4% of the sample. Compared to vaccinated individuals, non-vaccinated individuals were more likely to be younger, healthier, employed, have lower income, not worried about their health, have previously tested positive for SARS-CoV-2 infection, express lower vaccination acceptance, and/or report higher conscientiousness. Among non-vaccinated individuals, 19.9% and 21.3% had low confidence in the safety and effectiveness of SARS-CoV-2 vaccine, respectively. However, 29.1% and 26.7% of individuals with concerns about vaccine effectiveness and side effects at baseline, respectively vaccinated during the study period. Conclusion: In addition to known socio-demographic and health-related factors, non-vaccination was associated with concerns regarding vaccine safety and effectiveness.
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Affiliation(s)
- Serena Sabatini
- Instutite of Public Health, Università della Svizzera Italiana, Lugano, Switzerland
| | - Marco Kaufmann
- Epidemiology, Biostatistics and Prevention Institute, University of Zurich, Zurich, Switzerland
| | - Marta Fadda
- Instutite of Public Health, Università della Svizzera Italiana, Lugano, Switzerland
| | - Stefano Tancredi
- Population Health Laboratory (#PopHealthLab), University of Fribourg, Fribourg, Switzerland
| | - Nazihah Noor
- Population Health Laboratory (#PopHealthLab), University of Fribourg, Fribourg, Switzerland
| | | | - Stéphane Cullati
- Population Health Laboratory (#PopHealthLab), University of Fribourg, Fribourg, Switzerland
- Department of Readaptation and Geriatrics, University of Geneva, Geneva, Switzerland
| | - Irene Frank
- Clinical Trial Unit, Lucerne Cantonal Hospital, Lucerne, Switzerland
| | - Gisela Michel
- Faculty of Health Sciences and Medicine, University of Lucerne, Lucerne, Switzerland
| | - Erika Harju
- Faculty of Health Sciences and Medicine, University of Lucerne, Lucerne, Switzerland
- ZHAW Zurich University of Applied Sciences, School of Health Sciences, Winterthur, Switzerland
| | - Chantal Luedi
- Faculty of Health Sciences and Medicine, University of Lucerne, Lucerne, Switzerland
| | - Anja Frei
- Epidemiology, Biostatistics and Prevention Institute, University of Zurich, Zurich, Switzerland
| | - Tala Ballouz
- Epidemiology, Biostatistics and Prevention Institute, University of Zurich, Zurich, Switzerland
| | - Dominik Menges
- Epidemiology, Biostatistics and Prevention Institute, University of Zurich, Zurich, Switzerland
| | - Jan Fehr
- Epidemiology, Biostatistics and Prevention Institute, University of Zurich, Zurich, Switzerland
| | - Philipp Kohler
- Cantonal Hospital St. Gallen, Division of Infectious Diseases and Hospital Epidemiology, St. Gallen, Switzerland
| | - Christian R. Kahlert
- Cantonal Hospital St. Gallen, Division of Infectious Diseases and Hospital Epidemiology, St. Gallen, Switzerland
- Children’s Hospital of Eastern Switzerland, Division of Infectious Diseases and Hospital Epidemiology, St. Gallen, Switzerland
| | - Victor Scheu
- Department of General Internal Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
- Institute of Primary Health Care (BIHAM), University of Bern, Bern, Switzerland
| | - Natalia Ortega
- Population Health Laboratory (#PopHealthLab), University of Fribourg, Fribourg, Switzerland
- Institute of Primary Health Care (BIHAM), University of Bern, Bern, Switzerland
| | - Patricia Chocano-Bedoya
- Population Health Laboratory (#PopHealthLab), University of Fribourg, Fribourg, Switzerland
- Institute of Primary Health Care (BIHAM), University of Bern, Bern, Switzerland
| | - Nicolas Rodondi
- Department of General Internal Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
- Institute of Primary Health Care (BIHAM), University of Bern, Bern, Switzerland
| | - Silvia Stringhini
- Unit of Population Epidemiology, Division of Primary Care Medicine, Geneva University Hospitals, Geneva, Switzerland
- Department of Health and Community Medicine, Faculty of Medicine, University of Geneva, Geneva, Switzerland
- University Center for General Medicine and Public Health, University of Lausanne, Lausanne, Switzerland
| | - Hélène Baysson
- Unit of Population Epidemiology, Division of Primary Care Medicine, Geneva University Hospitals, Geneva, Switzerland
- Department of Health and Community Medicine, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Elsa Lorthe
- Unit of Population Epidemiology, Division of Primary Care Medicine, Geneva University Hospitals, Geneva, Switzerland
| | - Maria Caiata Zufferey
- Department of Business Economics, Health and Social Care, University of Applied Sciences and Arts of Southern Switzerland, Manno, Switzerland
| | - L. Suzanne Suggs
- Instutite of Public Health, Università della Svizzera Italiana, Lugano, Switzerland
- Institute of Communication and Public Policy, Università della Svizzera Italiana, Lugano, Switzerland
| | - Emiliano Albanese
- Instutite of Public Health, Università della Svizzera Italiana, Lugano, Switzerland
| | - Julia Vincentini
- University Centre for Primary Care and Public Health (Unisanté), University of Lausanne, Lausanne, Switzerland
| | - Murielle Bochud
- University Centre for Primary Care and Public Health (Unisanté), University of Lausanne, Lausanne, Switzerland
| | - Valérie D’Acremont
- University Centre for Primary Care and Public Health (Unisanté), University of Lausanne, Lausanne, Switzerland
| | - Samira Gonseth Nusslé
- University Centre for Primary Care and Public Health (Unisanté), University of Lausanne, Lausanne, Switzerland
| | - Medea Imboden
- Swiss Tropical and Public Health (TPH) Institute, Allschwil, Switzerland
- Faculty of Medicine, University of Basel, Basel, Switzerland
| | - Dirk Keidel
- Swiss Tropical and Public Health (TPH) Institute, Allschwil, Switzerland
- Faculty of Medicine, University of Basel, Basel, Switzerland
| | - Melissa Witzig
- Swiss Tropical and Public Health (TPH) Institute, Allschwil, Switzerland
- Faculty of Medicine, University of Basel, Basel, Switzerland
| | - Nicole Probst-Hensch
- Swiss Tropical and Public Health (TPH) Institute, Allschwil, Switzerland
- Faculty of Medicine, University of Basel, Basel, Switzerland
| | - Viktor von Wyl
- Epidemiology, Biostatistics and Prevention Institute, University of Zurich, Zurich, Switzerland
- Institute for Implementation Science in Health Care, University of Zurich, Zurich, Switzerland
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10
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Tancredi S, Ulytė A, Wagner C, Keidel D, Witzig M, Imboden M, Probst-Hensch N, Amati R, Albanese E, Levati S, Crivelli L, Kohler P, Cusini A, Kahlert C, Harju E, Michel G, Lüdi C, Ortega N, Baggio S, Chocano-Bedoya P, Rodondi N, Ballouz T, Frei A, Kaufmann M, Von Wyl V, Lorthe E, Baysson H, Stringhini S, Schneider V, Kaufmann L, Wieber F, Volken T, Zysset A, Dratva J, Cullati S. Changes in socioeconomic resources and mental health after the second COVID-19 wave (2020-2021): a longitudinal study in Switzerland. Int J Equity Health 2023; 22:51. [PMID: 36959642 PMCID: PMC10035489 DOI: 10.1186/s12939-023-01853-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Accepted: 02/25/2023] [Indexed: 03/25/2023] Open
Abstract
BACKGROUND During the 2020/2021 winter, the labour market was under the impact of the COVID-19 pandemic. Changes in socioeconomic resources during this period could have influenced individual mental health. This association may have been mitigated or exacerbated by subjective risk perceptions, such as perceived risk of getting infected with SARS-CoV-2 or perception of the national economic situation. Therefore, we aimed to determine if changes in financial resources and employment situation during and after the second COVID-19 wave were prospectively associated with depression, anxiety and stress, and whether perceptions of the national economic situation and of the risk of getting infected modified this association. METHODS One thousand seven hundred fifty nine participants from a nation-wide population-based eCohort in Switzerland were followed between November 2020 and September 2021. Financial resources and employment status were assessed twice (Nov2020-Mar2021, May-Jul 2021). Mental health was assessed after the second measurement of financial resources and employment status, using the Depression, Anxiety and Stress Scale (DASS-21). We modelled DASS-21 scores with linear regression, adjusting for demographics, health status, social relationships and changes in workload, and tested interactions with subjective risk perceptions. RESULTS We observed scores above thresholds for normal levels for 16% (95%CI = 15-18) of participants for depression, 8% (95%CI = 7-10) for anxiety, and 10% (95%CI = 9-12) for stress. Compared to continuously comfortable or sufficient financial resources, continuously precarious or insufficient resources were associated with worse scores for all outcomes. Increased financial resources were associated with higher anxiety. In the working-age group, shifting from full to part-time employment was associated with higher stress and anxiety. Perceiving the Swiss economic situation as worrisome was associated with higher anxiety in participants who lost financial resources or had continuously precarious or insufficient resources. CONCLUSION This study confirms the association of economic stressors and mental health during the COVID-19 pandemic and highlights the exacerbating role of subjective risk perception on this association.
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Affiliation(s)
- Stefano Tancredi
- Population Health Laboratory (#PopHealthLab), University of Fribourg, Fribourg, Switzerland.
| | - Agnė Ulytė
- Population Health Laboratory (#PopHealthLab), University of Fribourg, Fribourg, Switzerland
- Biostatistics and Prevention Institute, University of Zurich, Zurich, Switzerland
| | - Cornelia Wagner
- Population Health Laboratory (#PopHealthLab), University of Fribourg, Fribourg, Switzerland
| | - Dirk Keidel
- Swiss Tropical and Public Health Institute, Allschwil, Switzerland
- University of Basel, Basel, Switzerland
| | - Melissa Witzig
- Swiss Tropical and Public Health Institute, Allschwil, Switzerland
- University of Basel, Basel, Switzerland
| | - Medea Imboden
- Swiss Tropical and Public Health Institute, Allschwil, Switzerland
- University of Basel, Basel, Switzerland
| | - Nicole Probst-Hensch
- Swiss Tropical and Public Health Institute, Allschwil, Switzerland
- University of Basel, Basel, Switzerland
| | - Rebecca Amati
- Institute of Public Health, Faculty of Biomedical Sciences, Università della Svizzera Italiana, Lugano, Switzerland
| | - Emiliano Albanese
- Institute of Public Health, Faculty of Biomedical Sciences, Università della Svizzera Italiana, Lugano, Switzerland
| | - Sara Levati
- Department of Business Economics, Health and Social Care at the University of Applied Sciences and Arts of Southern Switzerland, Manno, Switzerland
| | - Luca Crivelli
- Department of Business Economics, Health and Social Care at the University of Applied Sciences and Arts of Southern Switzerland, Manno, Switzerland
| | - Philipp Kohler
- Division of Infectious Diseases and Hospital Epidemiology, Kantonsspital St Gallen, St-Gallen, Switzerland
- Department of Infectious Diseases and Hospital Epidemiology, Children's Hospital of Eastern Switzerland, St Gallen, Switzerland
| | - Alexia Cusini
- Division of Infectious Diseases and Hospital Epidemiology, Kantonsspital St Gallen, St-Gallen, Switzerland
- Department of Infectious Diseases and Hospital Epidemiology, Children's Hospital of Eastern Switzerland, St Gallen, Switzerland
| | - Christian Kahlert
- Division of Infectious Diseases and Hospital Epidemiology, Kantonsspital St Gallen, St-Gallen, Switzerland
- Department of Infectious Diseases and Hospital Epidemiology, Children's Hospital of Eastern Switzerland, St Gallen, Switzerland
| | - Erika Harju
- Department Health Sciences and Medicine, University of Lucerne, Lucerne, Switzerland
| | - Gisela Michel
- Department Health Sciences and Medicine, University of Lucerne, Lucerne, Switzerland
| | - Chantal Lüdi
- Department Health Sciences and Medicine, University of Lucerne, Lucerne, Switzerland
| | - Natalia Ortega
- Population Health Laboratory (#PopHealthLab), University of Fribourg, Fribourg, Switzerland
- Institute of Primary Health Care (BIHAM), University of Bern, Bern, Switzerland
| | - Stéphanie Baggio
- Institute of Primary Health Care (BIHAM), University of Bern, Bern, Switzerland
- Division of Prison Health, Geneva University Hospitals & University of Geneva, Geneva, Switzerland
| | - Patricia Chocano-Bedoya
- Population Health Laboratory (#PopHealthLab), University of Fribourg, Fribourg, Switzerland
- Institute of Primary Health Care (BIHAM), University of Bern, Bern, Switzerland
| | - Nicolas Rodondi
- Institute of Primary Health Care (BIHAM), University of Bern, Bern, Switzerland
- Department of General Internal Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Tala Ballouz
- Epidemiology, Biostatistics and Prevention Institute, University of Zurich, Zurich, Switzerland
| | - Anja Frei
- Epidemiology, Biostatistics and Prevention Institute, University of Zurich, Zurich, Switzerland
| | - Marco Kaufmann
- Epidemiology, Biostatistics and Prevention Institute, University of Zurich, Zurich, Switzerland
| | - Viktor Von Wyl
- Epidemiology, Biostatistics and Prevention Institute, University of Zurich, Zurich, Switzerland
| | - Elsa Lorthe
- Unit of Population Epidemiology, Division of Primary Care Medicine, Geneva University Hospitals, Geneva, Switzerland
| | - Hélène Baysson
- Unit of Population Epidemiology, Division of Primary Care Medicine, Geneva University Hospitals, Geneva, Switzerland
- Department of Health and Community Medicine, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Silvia Stringhini
- Unit of Population Epidemiology, Division of Primary Care Medicine, Geneva University Hospitals, Geneva, Switzerland
- Department of Health and Community Medicine, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Valentine Schneider
- Cantonal Public Health Service of the Canton of Neuchâtel, Neuchâtel, Switzerland
| | - Laurent Kaufmann
- Cantonal Public Health Service of the Canton of Neuchâtel, Neuchâtel, Switzerland
| | - Frank Wieber
- Zurich University of Applied Sciences, Institute of Public Health, Winterthur, Switzerland
- Department of Psychology, University of Konstanz, Konstanz, Germany
| | - Thomas Volken
- Zurich University of Applied Sciences, Institute of Public Health, Winterthur, Switzerland
| | - Annina Zysset
- Zurich University of Applied Sciences, Institute of Public Health, Winterthur, Switzerland
| | - Julia Dratva
- University of Basel, Basel, Switzerland
- Zurich University of Applied Sciences, Institute of Public Health, Winterthur, Switzerland
| | - Stéphane Cullati
- Population Health Laboratory (#PopHealthLab), University of Fribourg, Fribourg, Switzerland
- Department of Readaptation and Geriatrics, University of Geneva, Geneva, Switzerland
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11
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Rios-Leyvraz M, Ortega N, Chiolero A. Reliability of Self-Reported Height and Weight in Children: A School-Based Cross-Sectional Study and a Review. Nutrients 2022; 15:nu15010075. [PMID: 36615731 PMCID: PMC9824624 DOI: 10.3390/nu15010075] [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] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 12/20/2022] [Accepted: 12/22/2022] [Indexed: 12/28/2022] Open
Abstract
Since anthropometric measurements are not always feasible in large surveys, self-reported values are an alternative. Our objective was to assess the reliability of self-reported weight and height values compared to measured values in children with (1) a cross-sectional study in Switzerland and (2) a comprehensive review with a meta-analysis. We conducted a secondary analysis of data from a school-based study in Switzerland of 2616 children and a review of 63 published studies including 122,629 children. In the cross-sectional study, self-reported and measured values were highly correlated (weight: r = 0.96; height: r = 0.92; body mass index (BMI) r = 0.88), although self-reported values tended to underestimate measured values (weight: -1.4 kg; height: -0.9 cm; BMI: -0.4 kg/m2). Prevalence of underweight was overestimated and prevalence of overweight was underestimated using self-reported values. In the meta-analysis, high correlations were found between self-reported and measured values (weight: r = 0.94; height: r = 0.87; BMI: r = 0.88). Weight (-1.4 kg) and BMI (-0.7 kg/m2) were underestimated, and height was slightly overestimated (+0.1 cm) with self-reported values. Self-reported values tended to be more reliable in children above 11 years old. Self-reported weight and height in children can be a reliable alternative to measurements, but should be used with caution to estimate over- or underweight prevalence.
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Affiliation(s)
- Magali Rios-Leyvraz
- Population Health Laboratory (#PopHealthLab), University of Fribourg, 1700 Fribourg, Switzerland
- Correspondence:
| | - Natalia Ortega
- Population Health Laboratory (#PopHealthLab), University of Fribourg, 1700 Fribourg, Switzerland
- Bern Institute of Primary Health Care (BIHAM), Faculty of Medicine, University of Bern, 3012 Bern, Switzerland
| | - Arnaud Chiolero
- Population Health Laboratory (#PopHealthLab), University of Fribourg, 1700 Fribourg, Switzerland
- Bern Institute of Primary Health Care (BIHAM), Faculty of Medicine, University of Bern, 3012 Bern, Switzerland
- Department of Epidemiology, School of Population and Global Health, McGill University, Montréal, QC H3A 1G1, Canada
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12
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Buendia A, Sanchez J, Salinas J, Ortega N, Del Rio L, Navarro J. Evaluation of a commercial double-recognition ELISA for caprine tuberculosis diagnosis: Sensitivity, specificity, and correlation to macroscopic and microscopic lesions. Res Vet Sci 2022; 152:618-623. [DOI: 10.1016/j.rvsc.2022.09.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 09/16/2022] [Accepted: 09/29/2022] [Indexed: 11/07/2022]
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13
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Moncunill G, Aguilar R, Ribes M, Ortega N, Rubio R, Salmerón G, Molina MJ, Vidal M, Barrios D, Mitchell RA, Jiménez A, Castellana C, Hernández-Luis P, Rodó P, Méndez S, Llupià A, Puyol L, Rodrigo Melero N, Carolis C, Mayor A, Izquierdo L, Varela P, Trilla A, Vilella A, Barroso S, Angulo A, Engel P, Tortajada M, García-Basteiro AL, Dobaño C. Determinants of early antibody responses to COVID-19 mRNA vaccines in a cohort of exposed and naïve healthcare workers. EBioMedicine 2022; 75:103805. [PMID: 35032961 PMCID: PMC8752368 DOI: 10.1016/j.ebiom.2021.103805] [Citation(s) in RCA: 43] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 12/23/2021] [Accepted: 12/23/2021] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Two doses of mRNA vaccination have shown >94% efficacy at preventing COVID-19 mostly in naïve adults, but it is not clear if the second dose is needed to maximize effectiveness in those previously exposed to SARS-CoV-2 and what other factors affect responsiveness. METHODS We measured IgA, IgG and IgM levels against SARS-CoV-2 spike (S) and nucleocapsid (N) antigens from the wild-type and S from the Alpha, Beta and Gamma variants of concern, after BNT162b2 (Pfizer/BioNTech) or mRNA-1273 (Moderna) vaccination in a cohort of health care workers (N=578). Neutralizing capacity and antibody avidity were evaluated. Data were analyzed in relation to COVID-19 history, comorbidities, vaccine doses, brand and adverse events. FINDINGS Vaccination induced robust IgA and IgG levels against all S antigens. Neutralization capacity and S IgA and IgG levels were higher in mRNA-1273 vaccinees, previously SARS-CoV-2 exposed, particularly if symptomatic, and in those experiencing systemic adverse effects (p<0·05). A second dose in pre-exposed did not increase antibody levels. Smoking and comorbidities were associated with 43% (95% CI, 19-59) and 45% (95% CI, 63-18) lower neutralization, respectively, and 35% (95% CI, 3-57%) and 55% (95% CI, 33-70%) lower antibody levels, respectively. Among fully vaccinated, 6·3% breakthroughs were detected up to 189 days post-vaccination. Among pre-exposed non-vaccinated, 90% were IgG seropositive more than 300 days post-infection. INTERPRETATION Our data support administering a single-dose in pre-exposed healthy individuals as primary vaccination. However, heterogeneity of responses suggests that personalized recommendations may be necessary depending on COVID-19 history and life-style. Higher mRNA-1273 immunogenicity would be beneficial for those expected to respond worse to vaccination and in face of variants that escape immunity such as Omicron. Persistence of antibody levels in pre-exposed unvaccinated indicates maintenance of immunity up to one year. FUNDING This work was supported by Institut de Salut Global de Barcelona (ISGlobal) internal funds, in-kind contributions from Hospital Clínic de Barcelona, the Fundació Privada Daniel Bravo Andreu, and European Institute of Innovation and Technology (EIT) Health (grant number 20877), supported by the European Institute of Innovation and Technology, a body of the European Union receiving support from the H2020 Research and Innovation Programme. We acknowledge support from the Spanish Ministry of Science and Innovation and State Research Agency through the "Centro de Excelencia Severo Ochoa 2019-2023" Program (CEX2018-000806-S), and support from the Generalitat de Catalunya through the CERCA Program. L. I. work was supported by PID2019-110810RB-I00 grant from the Spanish Ministry of Science & Innovation. Development of SARS-CoV-2 reagents was partially supported by the National Institute of Allergy and Infectious Diseases Centers of Excellence for Influenza Research and Surveillance (contract number HHSN272201400008C). The funders had no role in study design, data collection and analysis, the decision to publish, or the preparation of the manuscript.
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Affiliation(s)
- Gemma Moncunill
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain; CIBER de Enfermedades Infecciosas, Madrid, Spain.
| | - Ruth Aguilar
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain
| | - Marta Ribes
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain
| | - Natalia Ortega
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain
| | - Rocío Rubio
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain
| | - Gemma Salmerón
- Occupational Health Department, Hospital Clínic, Universitat de Barcelona, Barcelona, Spain
| | - María José Molina
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain; Département Biologie, Université Claude Bernard Lyon 1, Villeurbanne, Auvergne-Rhône-Alpes, France
| | - Marta Vidal
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain
| | - Diana Barrios
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain
| | - Robert A Mitchell
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain
| | - Alfons Jiménez
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain; Spanish Consortium for Research in Epidemiology and Public Health, Madrid, Spain
| | - Cristina Castellana
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain
| | - Pablo Hernández-Luis
- Immunology Unit, Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universitat de Barcelona, Barcelona, Spain
| | - Pau Rodó
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain
| | - Susana Méndez
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain
| | - Anna Llupià
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain; Department of Preventive Medicine and Epidemiology, Hospital Clinic, Universitat de Barcelona, Barcelona, Spain
| | - Laura Puyol
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain
| | - Natalia Rodrigo Melero
- Biomolecular screening and Protein Technologies Unit, Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Barcelona, Spain
| | - Carlo Carolis
- Biomolecular screening and Protein Technologies Unit, Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Barcelona, Spain
| | - Alfredo Mayor
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain; Spanish Consortium for Research in Epidemiology and Public Health, Madrid, Spain; Centro de Investigação em Saúde de Manhiça, Maputo, Mozambique
| | - Luis Izquierdo
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain; CIBER de Enfermedades Infecciosas, Madrid, Spain
| | - Pilar Varela
- Occupational Health Department, Hospital Clínic, Universitat de Barcelona, Barcelona, Spain
| | - Antoni Trilla
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain; Department of Preventive Medicine and Epidemiology, Hospital Clinic, Universitat de Barcelona, Barcelona, Spain; Faculty of Medicine and Health Sciences, Universitat de Barcelona, Barcelona, Spain
| | - Anna Vilella
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain; Department of Preventive Medicine and Epidemiology, Hospital Clinic, Universitat de Barcelona, Barcelona, Spain
| | | | - Ana Angulo
- Immunology Unit, Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universitat de Barcelona, Barcelona, Spain; Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
| | - Pablo Engel
- Immunology Unit, Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universitat de Barcelona, Barcelona, Spain; Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
| | - Marta Tortajada
- Occupational Health Department, Hospital Clínic, Universitat de Barcelona, Barcelona, Spain
| | - Alberto L García-Basteiro
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain; CIBER de Enfermedades Infecciosas, Madrid, Spain; Centro de Investigação em Saúde de Manhiça, Maputo, Mozambique; International Health Department, Hospital Clínic, Universitat de Barcelona, Barcelona, Spain
| | - Carlota Dobaño
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain; CIBER de Enfermedades Infecciosas, Madrid, Spain.
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14
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Ortega N, Ribes M, Vidal M, Rubio R, Aguilar R, Williams S, Barrios D, Alonso S, Hernández-Luis P, Mitchell RA, Jairoce C, Cruz A, Jimenez A, Santano R, Méndez S, Lamoglia M, Rosell N, Llupià A, Puyol L, Chi J, Melero NR, Parras D, Serra P, Pradenas E, Trinité B, Blanco J, Mayor A, Barroso S, Varela P, Vilella A, Trilla A, Santamaria P, Carolis C, Tortajada M, Izquierdo L, Angulo A, Engel P, García-Basteiro AL, Moncunill G, Dobaño C. Seven-month kinetics of SARS-CoV-2 antibodies and role of pre-existing antibodies to human coronaviruses. Nat Commun 2021; 12:4740. [PMID: 34362897 PMCID: PMC8346582 DOI: 10.1038/s41467-021-24979-9] [Citation(s) in RCA: 87] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 07/16/2021] [Indexed: 12/24/2022] Open
Abstract
Unraveling the long-term kinetics of antibodies to SARS-CoV-2 and the individual characteristics influencing it, including the impact of pre-existing antibodies to human coronaviruses causing common cold (HCoVs), is essential to understand protective immunity to COVID-19 and devise effective surveillance strategies. IgM, IgA and IgG levels against six SARS-CoV-2 antigens and the nucleocapsid antigen of the four HCoV (229E, NL63, OC43 and HKU1) were quantified by Luminex, and antibody neutralization capacity was assessed by flow cytometry, in a cohort of health care workers followed up to 7 months (N = 578). Seroprevalence increases over time from 13.5% (month 0) and 15.6% (month 1) to 16.4% (month 6). Levels of antibodies, including those with neutralizing capacity, are stable over time, except IgG to nucleocapsid antigen and IgM levels that wane. After the peak response, anti-spike antibody levels increase from ~150 days post-symptom onset in all individuals (73% for IgG), in the absence of any evidence of re-exposure. IgG and IgA to HCoV are significantly higher in asymptomatic than symptomatic seropositive individuals. Thus, pre-existing cross-reactive HCoVs antibodies could have a protective effect against SARS-CoV-2 infection and COVID-19 disease.
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Affiliation(s)
- Natalia Ortega
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain
| | - Marta Ribes
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain
| | - Marta Vidal
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain
| | - Rocío Rubio
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain
| | - Ruth Aguilar
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain
| | - Sarah Williams
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain
| | - Diana Barrios
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain
| | - Selena Alonso
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain
| | - Pablo Hernández-Luis
- Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
- Immunology Unit, Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, University of Barcelona, Barcelona, Spain
| | - Robert A Mitchell
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain
| | - Chenjerai Jairoce
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain
- Centro de Investigação em Saúde de Manhiça, Maputo, Mozambique
| | - Angeline Cruz
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain
| | - Alfons Jimenez
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain
- Spanish Consortium for Research in Epidemiology and Public Health, Madrid, Spain
| | - Rebeca Santano
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain
| | - Susana Méndez
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain
| | - Montserrat Lamoglia
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain
- School of Health Sciences TecnoCampus Universitat Pompeu Fabra, Mataró, Spain
| | - Neus Rosell
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain
| | - Anna Llupià
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain
- Department of Preventive Medicine and Epidemiology, Hospital Clinic, Universitat de Barcelona, Barcelona, Spain
| | - Laura Puyol
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain
| | - Jordi Chi
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain
| | - Natalia Rodrigo Melero
- Biomolecular screening and Protein Technologies Unit, Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Barcelona, Spain
| | - Daniel Parras
- Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
| | - Pau Serra
- Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
| | - Edwards Pradenas
- IrsiCaixa AIDS Research Institute, Germans Trias i Pujol Research Institute (IGTP), Can Ruti Campus, UAB, Badalona, Catalonia, Spain
| | - Benjamin Trinité
- IrsiCaixa AIDS Research Institute, Germans Trias i Pujol Research Institute (IGTP), Can Ruti Campus, UAB, Badalona, Catalonia, Spain
| | - Julià Blanco
- IrsiCaixa AIDS Research Institute, Germans Trias i Pujol Research Institute (IGTP), Can Ruti Campus, UAB, Badalona, Catalonia, Spain
- University of Vic-Central University of Catalonia (UVic-UCC), Vic, Catalonia, Spain
| | - Alfredo Mayor
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain
- Centro de Investigação em Saúde de Manhiça, Maputo, Mozambique
- Spanish Consortium for Research in Epidemiology and Public Health, Madrid, Spain
| | - Sonia Barroso
- Occupational Health Department, Hospital Clínic, Universitat de Barcelona, Barcelona, Spain
| | - Pilar Varela
- Occupational Health Department, Hospital Clínic, Universitat de Barcelona, Barcelona, Spain
| | - Anna Vilella
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain
- Spanish Consortium for Research in Epidemiology and Public Health, Madrid, Spain
| | - Antoni Trilla
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain
- Spanish Consortium for Research in Epidemiology and Public Health, Madrid, Spain
- Faculty of Medicine and Health Sciences, Universitat de Barcelona, Barcelona, Spain
| | - Pere Santamaria
- Department of Preventive Medicine and Epidemiology, Hospital Clinic, Universitat de Barcelona, Barcelona, Spain
- Julia McFarlane Diabetes Research Centre, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Department of Microbiology, Immunology and Infectious Diseases, Snyder Institute for Chronic Diseases, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Carlo Carolis
- Biomolecular screening and Protein Technologies Unit, Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Barcelona, Spain
| | - Marta Tortajada
- Occupational Health Department, Hospital Clínic, Universitat de Barcelona, Barcelona, Spain
| | - Luis Izquierdo
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain
| | - Ana Angulo
- Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
- Immunology Unit, Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, University of Barcelona, Barcelona, Spain
| | - Pablo Engel
- Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
- Immunology Unit, Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, University of Barcelona, Barcelona, Spain
| | - Alberto L García-Basteiro
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain
- Centro de Investigação em Saúde de Manhiça, Maputo, Mozambique
- International Health Department, Hospital Clínic, Universitat de Barcelona, Barcelona, Spain
| | - Gemma Moncunill
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain.
| | - Carlota Dobaño
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain.
- Spanish Consortium for Research in Epidemiology and Public Health, Madrid, Spain.
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15
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Audicana A, Ortega N, Lobera T, Blanca N, De la Parte B, García I, Gelis S, Martín J, Barranco R, Vila C, Laguna JJ. Spanish Society vision of Drug challenge tests. J Investig Allergol Clin Immunol 2021; 31:385-403. [PMID: 33653682 DOI: 10.18176/jiaci.0681] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The controlled drug exposure test (DPT) is currently considered the gold standard for the diagnosis of drug allergy. Drug-induced adverse reactions (ADRs) are a growing reason for consultation in both primary and specialized care. Allergology consultations in Spain are the ones that usually study these ADRs and rule out immunological mechanisms involved in up to 90% of the cases consulted. An adequate approach to these cases has an obvious impact on the costs and efficacy of the treatments required by other specialists, so that if we did not use DPTs, patients would require more expensive, more toxic and less effective treatments in most of the cases. In recent years, a large number of new drugs have been developed and this document is intended to be a practical guide in the management of PDT with the vision of the Spanish Allergology Society. Diagnostic work begins with a detailed history of the patient. Skin tests are only useful for some medications, and in most cases the diagnosis can only be confirmed by DPT. Although there is usually cross-reactivity, DPTs can confirm the diagnosis and also help to find a tolerable alternative drug. The individual management of patients in a programmed way, taking into account both the type of drug to be studied and the patient´s comorbidities, usually allows a solution to be found for the majority of patients.
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Affiliation(s)
- A Audicana
- Servicio de Alergología e Inmunología Clínica, Hospital Universitario Araba, OSI Araba, Vitoria, Spain
| | - N Ortega
- Servicio de Alergología, Hospital Doctor Negrín, Las Palmas de Gran Canaria, Spain
| | - T Lobera
- Sección de Alergología, Hospital Universitario de San Pedro, Logroño, La Rioja, Spain
| | - N Blanca
- Servicio de Alergología, Hospital Universitario Infanta Leonor, Madrid, Spain
| | - B De la Parte
- Servicio de Alergología, Hospital del Tajo, Aranjuez, Spain
| | - I García
- Servicio de Alergología, Hospital Quirón Salud Campo de Gibraltar y Hospital Quiron Salud Córdoba, Spain
| | - S Gelis
- Unidad de Alergia, Servicio de Neumología, Hospital Clinic, Institut d'investigacions Biomediques August Pi i Sunyer (IDIPAPS), Barcelona, Spain
| | - J Martín
- Servicio de Alergología, Hospital San Rafael, La Coruña, Spain
| | - R Barranco
- Servicio de Alergología, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - C Vila
- Unidad de Alergia, Hospital Universitario Severo Ochoa, Leganés. Madrid, Spain
| | - J J Laguna
- Unidad de Alergia, Unidad de Alergoanestesia, Hospital Central de la Cruz Roja. Madrid, Spain
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16
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Moncunill G, Mayor A, Santano R, Jiménez A, Vidal M, Tortajada M, Sanz S, Méndez S, Llupià A, Aguilar R, Alonso S, Barrios D, Carolis C, Cisteró P, Chóliz E, Cruz A, Fochs S, Jairoce C, Hecht J, Lamoglia M, Martínez MJ, Moreno J, Mitchell RA, Ortega N, Pey N, Puyol L, Ribes M, Rosell N, Figueroa-Romero A, Sotomayor P, Torres S, Williams S, Barroso S, Vilella A, Trilla A, Varela P, Dobaño C, Garcia-Basteiro AL. SARS-CoV-2 Seroprevalence and Antibody Kinetics Among Health Care Workers in a Spanish Hospital After 3 Months of Follow-up. J Infect Dis 2021; 223:62-71. [PMID: 33175145 PMCID: PMC7717341 DOI: 10.1093/infdis/jiaa696] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [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: 08/24/2020] [Accepted: 10/29/2020] [Indexed: 01/01/2023] Open
Abstract
Background At the COVID-19 spring 2020 pandemic peak in Spain, prevalence of SARS-CoV-2 infection in a cohort of 578 randomly selected health care workers (HCWs) from Hospital Clínic de Barcelona was 11.2%. Methods A follow-up survey 1 month later (April-May 2020) measured infection by rRT-PCR and IgM, IgA, and IgG to the receptor-binding domain of the spike protein by Luminex. Antibody kinetics, including IgG subclasses, was assessed until month 3. Results At month 1, the prevalence of infection measured by rRT-PCR and serology was 14.9% (84/565) and seroprevalence 14.5% (82/565). We found 25 (5%) new infections in 501 participants without previous evidence of infection. IgM, IgG, and IgA levels declined in 3 months (antibody decay rates 0.15 [95% CI, .11–.19], 0.66 [95% CI, .54–.82], and 0.12 [95% CI, .09–.16], respectively), and 68.33% of HCWs had seroreverted for IgM, 3.08% for IgG, and 24.29% for IgA. The most frequent subclass responses were IgG1 (highest levels) and IgG2, followed by IgG3, and only IgA1 but no IgA2 was detected. Conclusions Continuous and improved surveillance of SARS-CoV-2 infections in HCWs remains critical, particularly in high-risk groups. The observed fast decay of IgA and IgM levels has implications for seroprevalence studies using these isotypes.
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Affiliation(s)
- Gemma Moncunill
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain
| | - Alfredo Mayor
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain.,Spanish Consortium for Research in Epidemiology and Public Health, Madrid, Spain.,Centro de Investigação em Saúde de Manhiça, Maputo, Mozambique
| | - Rebeca Santano
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain
| | - Alfons Jiménez
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain.,Spanish Consortium for Research in Epidemiology and Public Health, Madrid, Spain
| | - Marta Vidal
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain
| | - Marta Tortajada
- Occupational Health Department, Hospital Clínic, Universitat de Barcelona, Barcelona, Spain
| | - Sergi Sanz
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain.,Spanish Consortium for Research in Epidemiology and Public Health, Madrid, Spain.,Department of Basic Clinical Practice, Faculty of Medicine, Universitat de Barcelona, Barcelona, Spain
| | - Susana Méndez
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain.,Spanish Consortium for Research in Epidemiology and Public Health, Madrid, Spain
| | - Anna Llupià
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain.,Department of Preventive Medicine and Epidemiology, Hospital Clinic, Universitat de Barcelona, Barcelona, Spain
| | - Ruth Aguilar
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain
| | - Selena Alonso
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain
| | - Diana Barrios
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain
| | - Carlo Carolis
- Centre for Genomic Regulation, Barcelona Institute of Science and Technology, Barcelona, Spain
| | - Pau Cisteró
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain
| | - Eugenia Chóliz
- Faculty of Medicine and Health Sciences, Universitat de Barcelona, Barcelona, Spain
| | - Angeline Cruz
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain
| | - Silvia Fochs
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain
| | - Chenjerai Jairoce
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain.,Centro de Investigação em Saúde de Manhiça, Maputo, Mozambique
| | - Jochen Hecht
- Centre for Genomic Regulation, Barcelona Institute of Science and Technology, Barcelona, Spain
| | - Montserrat Lamoglia
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain.,Faculty of Health Sciences of Blanquerna, Universitat Ramon Llull de Barcelona, Barcelona, Spain
| | - Mikel J Martínez
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain.,Department of Microbiology, Hospital Clínic, Universitat de Barcelona, Barcelona, Spain
| | - Javier Moreno
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain
| | - Robert A Mitchell
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain
| | - Natalia Ortega
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain
| | - Nuria Pey
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain
| | - Laura Puyol
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain
| | - Marta Ribes
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain
| | - Neus Rosell
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain
| | | | - Patricia Sotomayor
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain
| | - Sara Torres
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain
| | - Sarah Williams
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain
| | - Sonia Barroso
- Occupational Health Department, Hospital Clínic, Universitat de Barcelona, Barcelona, Spain
| | - Anna Vilella
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain.,Department of Preventive Medicine and Epidemiology, Hospital Clinic, Universitat de Barcelona, Barcelona, Spain
| | - Antoni Trilla
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain.,Centre for Genomic Regulation, Barcelona Institute of Science and Technology, Barcelona, Spain.,Faculty of Medicine and Health Sciences, Universitat de Barcelona, Barcelona, Spain
| | - Pilar Varela
- Occupational Health Department, Hospital Clínic, Universitat de Barcelona, Barcelona, Spain
| | - Carlota Dobaño
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain.,Spanish Consortium for Research in Epidemiology and Public Health, Madrid, Spain
| | - Alberto L Garcia-Basteiro
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Catalonia, Spain.,Spanish Consortium for Research in Epidemiology and Public Health, Madrid, Spain.,International Health Department, Hospital Clínic, Universitat de Barcelona, Barcelona, Spain
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17
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Ortega N, Das M, Ruiz MA, Ramos J, Das JK. Abstract 2431: Identification of the underlining relationship of bivalent histone modifications with pancreatic cancer stem cells by bioinformatic analysis. Cancer Res 2020. [DOI: 10.1158/1538-7445.am2020-2431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Epigenetic alterations are known to involve in cancer stem cells (CSCs) reprogramming. CSCs have been reported to be more resistant to anti-tumor treatments than the non-stem cancer cells, suggesting that surviving CSCs could be responsible for tumor relapse after therapy. The most relevant epigenetic alteration, histone modification has been shown in recent scientific studies to contribute to the regulation of cancer stem cell features in tumor metastasis, progression and response to chemotherapy. The pre-transcriptional regulator, bivalent histone modifications were reported to be involved in the development of CSCs recently. The synchronous presence of functionally opposite histone marks at transcript start sequence (TSS) is known as “Bivalency”. The H3K4me3 as well as H3K27me3, the prominent histone methylations of bivalency, are concerned in transcriptional activation and transcriptional repression respectively. The balance between H3K4me3 and H3K27me3 results in diverse chromatin architectures, ensuing in different transcription states of downstream genes: “poised”, “activated” or “repressed”. The current study is aimed to explore the relationship of bivalent histone modifications, (upregulation or expression of H3K4me3, and down-regulation or repression H3K27me3) the epigenetic regulations with the expression of pancreatic cancer stem cells (CD44, CD24, CD133, Ep-CAM, ALDH1A3) in pancreatic cancer. Protein expression profiles were analyzed using biological informatics methods (string database; Cytoscape database, BioGrid, Reactome, MatrixDB, NCBI Gene and NCBI epigenomics metadata analyses) to identify the relationship of bivalent histone modifications with expressed genes of pancreatic cancer stem cells (CD44, CD24, CD133, Ep-CAM, ALDH1A3). NCBI Biosystems database showed that 197 genes are involved in the Integrated Pancreatic Cancer Pathway model using KEGG database, but the relationship of bivalent histone modifications with the expression of pancreatic cancer stem cells (CD44, CD24, CD133, Ep-CAM, ALDH1A3) in pancreatic cancer has not been showed earlier. Our analysis showed the protein-protein interaction (PPI) network was constructed for such a relationship of closely related 45 significant genes. Among these 45 genes, a total of 7 pancreatic cancer stem cell markers (CSCs) was closely associated with upregulation or expression of H3K4me3, and down-regulation or repression H3K27me3 through EZH2 and PHF19 with a high degree of interaction in the PPI network. We are also able to analyze the role of H3K27ac in regulating target genes in 18 samples of pancreatic cancer cell lines using the ChIP-sequences data set of study SRA 109996 from NCBI NLM Sequence Read Archive from Run Browser Accession number ERR2708462. Therefore, this study identified the significant relationship of bivalent histone modifications associated with pancreatic CSCs which may be the novel biomarkers and target candidates in designing drugs against pancreatic cancer. This work was part of the honors option project (HOP) of Natalia Ortega mentored by Dr. Jayanta K. Das, at MDC north campus.
Citation Format: Natalia Ortega, Madhumita Das, Marco A. Ruiz, Jairo Ramos, Jayanta Kumar Das. Identification of the underlining relationship of bivalent histone modifications with pancreatic cancer stem cells by bioinformatic analysis [abstract]. In: Proceedings of the Annual Meeting of the American Association for Cancer Research 2020; 2020 Apr 27-28 and Jun 22-24. Philadelphia (PA): AACR; Cancer Res 2020;80(16 Suppl):Abstract nr 2431.
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18
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Garcia-Basteiro AL, Moncunill G, Tortajada M, Vidal M, Guinovart C, Jiménez A, Santano R, Sanz S, Méndez S, Llupià A, Aguilar R, Alonso S, Barrios D, Carolis C, Cisteró P, Chóliz E, Cruz A, Fochs S, Jairoce C, Hecht J, Lamoglia M, Martínez MJ, Mitchell RA, Ortega N, Pey N, Puyol L, Ribes M, Rosell N, Sotomayor P, Torres S, Williams S, Barroso S, Vilella A, Muñoz J, Trilla A, Varela P, Mayor A, Dobaño C. Seroprevalence of antibodies against SARS-CoV-2 among health care workers in a large Spanish reference hospital. Nat Commun 2020; 11:3500. [PMID: 32641730 PMCID: PMC7343863 DOI: 10.1038/s41467-020-17318-x] [Citation(s) in RCA: 264] [Impact Index Per Article: 66.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 06/19/2020] [Indexed: 01/19/2023] Open
Abstract
Health care workers (HCW) are a high-risk population to acquire SARS-CoV-2 infection from patients or other fellow HCW. This study aims at estimating the seroprevalence against SARS-CoV-2 in a random sample of HCW from a large hospital in Spain. Of the 578 participants recruited from 28 March to 9 April 2020, 54 (9.3%, 95% CI: 7.1-12.0) were seropositive for IgM and/or IgG and/or IgA against SARS-CoV-2. The cumulative prevalence of SARS-CoV-2 infection (presence of antibodies or past or current positive rRT-PCR) was 11.2% (65/578, 95% CI: 8.8-14.1). Among those with evidence of past or current infection, 40.0% (26/65) had not been previously diagnosed with COVID-19. Here we report a relatively low seroprevalence of antibodies among HCW at the peak of the COVID-19 epidemic in Spain. A large proportion of HCW with past or present infection had not been previously diagnosed with COVID-19, which calls for active periodic rRT-PCR testing in hospital settings.
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Affiliation(s)
- Alberto L Garcia-Basteiro
- ISGlobal, Hospital Clínic - Universitat de Barcelona, Barcelona, Spain.
- International Health Department, Hospital Clínic, Universitat de Barcelona, Barcelona, Spain.
- Centro de Investigação em Saúde de Manhiça (CISM), Maputo, Mozambique.
| | - Gemma Moncunill
- ISGlobal, Hospital Clínic - Universitat de Barcelona, Barcelona, Spain
| | - Marta Tortajada
- Occupational Health Department, Hospital Clínic, Universitat de Barcelona, Barcelona, Spain
| | - Marta Vidal
- ISGlobal, Hospital Clínic - Universitat de Barcelona, Barcelona, Spain
| | | | - Alfons Jiménez
- ISGlobal, Hospital Clínic - Universitat de Barcelona, Barcelona, Spain
- Spanish Consortium for Research in Epidemiology and Public Health (CIBERESP), Madrid, Spain
| | - Rebeca Santano
- ISGlobal, Hospital Clínic - Universitat de Barcelona, Barcelona, Spain
| | - Sergi Sanz
- ISGlobal, Hospital Clínic - Universitat de Barcelona, Barcelona, Spain
- Spanish Consortium for Research in Epidemiology and Public Health (CIBERESP), Madrid, Spain
- Department of Basic Clinical Practice, Faculty of Medicine, Universitat de Barcelona, Barcelona, Spain
| | - Susana Méndez
- ISGlobal, Hospital Clínic - Universitat de Barcelona, Barcelona, Spain
- Spanish Consortium for Research in Epidemiology and Public Health (CIBERESP), Madrid, Spain
| | - Anna Llupià
- ISGlobal, Hospital Clínic - Universitat de Barcelona, Barcelona, Spain
- Department of Preventive Medicine and Epidemiology, Hospital Clinic, Universitat de Barcelona, Barcelona, Spain
| | - Ruth Aguilar
- ISGlobal, Hospital Clínic - Universitat de Barcelona, Barcelona, Spain
| | - Selena Alonso
- ISGlobal, Hospital Clínic - Universitat de Barcelona, Barcelona, Spain
| | - Diana Barrios
- ISGlobal, Hospital Clínic - Universitat de Barcelona, Barcelona, Spain
| | - Carlo Carolis
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Barcelona, Spain
| | - Pau Cisteró
- ISGlobal, Hospital Clínic - Universitat de Barcelona, Barcelona, Spain
| | - Eugenia Chóliz
- Faculty of Medicine and Health Sciences, Universitat de Barcelona, Barcelona, Spain
| | - Angeline Cruz
- ISGlobal, Hospital Clínic - Universitat de Barcelona, Barcelona, Spain
| | - Silvia Fochs
- ISGlobal, Hospital Clínic - Universitat de Barcelona, Barcelona, Spain
| | - Chenjerai Jairoce
- ISGlobal, Hospital Clínic - Universitat de Barcelona, Barcelona, Spain
- Centro de Investigação em Saúde de Manhiça (CISM), Maputo, Mozambique
| | - Jochen Hecht
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Barcelona, Spain
| | - Montserrat Lamoglia
- ISGlobal, Hospital Clínic - Universitat de Barcelona, Barcelona, Spain
- Faculty of Health Sciences of Blanquerna, Universitat Ramon Llull de Barcelona, Barcelona, Spain
| | - Mikel J Martínez
- ISGlobal, Hospital Clínic - Universitat de Barcelona, Barcelona, Spain
- Department of Microbiology, Hospital Clinic, Universitat de Barcelona, Barcelona, Spain
| | - Robert A Mitchell
- ISGlobal, Hospital Clínic - Universitat de Barcelona, Barcelona, Spain
| | - Natalia Ortega
- ISGlobal, Hospital Clínic - Universitat de Barcelona, Barcelona, Spain
| | - Nuria Pey
- ISGlobal, Hospital Clínic - Universitat de Barcelona, Barcelona, Spain
| | - Laura Puyol
- ISGlobal, Hospital Clínic - Universitat de Barcelona, Barcelona, Spain
| | - Marta Ribes
- ISGlobal, Hospital Clínic - Universitat de Barcelona, Barcelona, Spain
| | - Neus Rosell
- ISGlobal, Hospital Clínic - Universitat de Barcelona, Barcelona, Spain
| | | | - Sara Torres
- ISGlobal, Hospital Clínic - Universitat de Barcelona, Barcelona, Spain
| | - Sarah Williams
- ISGlobal, Hospital Clínic - Universitat de Barcelona, Barcelona, Spain
| | - Sonia Barroso
- Occupational Health Department, Hospital Clínic, Universitat de Barcelona, Barcelona, Spain
| | - Anna Vilella
- ISGlobal, Hospital Clínic - Universitat de Barcelona, Barcelona, Spain
- Department of Preventive Medicine and Epidemiology, Hospital Clinic, Universitat de Barcelona, Barcelona, Spain
| | - José Muñoz
- ISGlobal, Hospital Clínic - Universitat de Barcelona, Barcelona, Spain
- International Health Department, Hospital Clínic, Universitat de Barcelona, Barcelona, Spain
| | - Antoni Trilla
- ISGlobal, Hospital Clínic - Universitat de Barcelona, Barcelona, Spain
- Department of Preventive Medicine and Epidemiology, Hospital Clinic, Universitat de Barcelona, Barcelona, Spain
- Faculty of Medicine and Health Sciences, Universitat de Barcelona, Barcelona, Spain
| | - Pilar Varela
- Occupational Health Department, Hospital Clínic, Universitat de Barcelona, Barcelona, Spain
| | - Alfredo Mayor
- ISGlobal, Hospital Clínic - Universitat de Barcelona, Barcelona, Spain
- Centro de Investigação em Saúde de Manhiça (CISM), Maputo, Mozambique
- Spanish Consortium for Research in Epidemiology and Public Health (CIBERESP), Madrid, Spain
| | - Carlota Dobaño
- ISGlobal, Hospital Clínic - Universitat de Barcelona, Barcelona, Spain
- Spanish Consortium for Research in Epidemiology and Public Health (CIBERESP), Madrid, Spain
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19
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Laroucau K, Ortega N, Vorimore F, Aaziz R, Mitura A, Szymanska-Czerwinska M, Cicerol M, Salinas J, Sachse K, Caro MR. Detection of a novel Chlamydia species in captive spur-thighed tortoises (Testudo graeca) in southeastern Spain and proposal of Candidatus Chlamydia testudinis. Syst Appl Microbiol 2020; 43:126071. [PMID: 32085936 DOI: 10.1016/j.syapm.2020.126071] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [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: 09/16/2019] [Revised: 01/30/2020] [Accepted: 02/04/2020] [Indexed: 12/18/2022]
Abstract
The spur-thighed tortoise (Testudo graeca) is an endangered Mediterranean tortoise that lives in North Africa, Southern Europe and Southwest Asia. In the wake of recent legislation making their keeping as domestic animals illegal, many of these animals have been returned to wildlife recovery centers in Spain. In the present study, a population of such tortoises showing signs of ocular disease and nasal discharge was examined for the presence of Chlamydia spp. Cloacal, conjunctival and/or choanal swabs were collected from 58 animals. Using a real-time PCR specific for the family Chlamydiaceae, 57/58 animals tested positive in at least one sample. While only a few samples proved positive for C. pecorum, sequencing of the 16S rRNA gene revealed a sequence identical to previously published sequences from specimens of German and Polish tortoises. Whole-genome sequences obtained from two conjunctival swab samples, as well as ANIb, TETRA values and a scheme based on 9 taxonomic marker genes revealed that the strain present in the Spanish tortoises represented a new yet non-classified species, with C. pecorum being its closest relative. We propose to designate the new species Candidatus Chlamydia testudinis.
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Affiliation(s)
- K Laroucau
- University Paris-Est, ANSES, Animal Health Laboratory, Bacterial Zoonoses Unit. Maisons-Alfort, France.
| | - N Ortega
- Departamento de Sanidad Animal, Facultad de Veterinaria, Campus Regional de Excelencia internacional, Campus Mare Nostrum, Universidad de Murcia, Spain
| | - F Vorimore
- University Paris-Est, ANSES, Animal Health Laboratory, Bacterial Zoonoses Unit. Maisons-Alfort, France
| | - R Aaziz
- University Paris-Est, ANSES, Animal Health Laboratory, Bacterial Zoonoses Unit. Maisons-Alfort, France
| | - A Mitura
- Department of Cattle and Sheep Diseases/Laboratory of Serological Diagnosis, National Veterinary Research Institute, Pulawy, Poland
| | - M Szymanska-Czerwinska
- Department of Cattle and Sheep Diseases/Laboratory of Serological Diagnosis, National Veterinary Research Institute, Pulawy, Poland
| | - M Cicerol
- Departamento de Sanidad Animal, Facultad de Veterinaria, Campus Regional de Excelencia internacional, Campus Mare Nostrum, Universidad de Murcia, Spain
| | - J Salinas
- Departamento de Sanidad Animal, Facultad de Veterinaria, Campus Regional de Excelencia internacional, Campus Mare Nostrum, Universidad de Murcia, Spain
| | - K Sachse
- Friedrich-Schiller-Universität Jena, Institut f. Bioinformatik, 07743 Jena, Germany
| | - M R Caro
- Departamento de Sanidad Animal, Facultad de Veterinaria, Campus Regional de Excelencia internacional, Campus Mare Nostrum, Universidad de Murcia, Spain
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20
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Ortega N, Ahola V, Plaza-Reyes A, Schell J, Kumar P, Jouneau A, Duranthon V, Lanner F. 56 Mammalian pre-implantation embryos at the single cell level: The bovine as a model for early human embryonic development. Reprod Fertil Dev 2020. [DOI: 10.1071/rdv32n2ab56] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Single-cell transcriptomics and gene editing on human pre-implantation embryos have proved that mechanisms previously identified and well characterised in mouse pre-implantation development may not hold true in the human embryo. However, ethical and legal concerns limit the availability of surplus human embryos for research, resulting in the need for novel animal models. Bovine embryos share morphological and temporal resemblance with human early development; still, key molecular and cellular developmental mechanisms need to be further explored. In the present study, we performed a comparative single-cell RNA sequencing analysis across multiple pre-implantational developmental stages of invitro-derived bovine, human (Petropoulos et al. 2016 Cell 165, 1012-1026; https://doi.org/10.1016/j.cell.2016.03.023), and mouse embryos (Cheng et al. 2019 Cell Rep. 26, 2593-2607, https://doi.org/10.1016/j.celrep.2019.02.031; Posfai et al. 2017 eLife 6, e22906, https://doi.org/10.7554/eLife.22906; Chen et al. 2016 Genome Res. 26, 1342-1354). In total 497 blastomeres corresponding to embryonic days (E) E4-E8 were prepared using Smart sEqn 2, Illumina HiSEqn 2500 sequencing with 50-bp single-end reads. Embryonic stage was defined by cell numbers and morphology as multicellular stage (Mu, ~E4), morulae (M; E5), early blastocysts (EB, ~6), mid-expanded blastocysts, (MB, ~E7), and late expanded/hatched blastocysts (LB, ~E8). We found top differentially expressed genes elucidating how lineage specification and pluripotency is controlled in the early bovine embryo. Our transcriptomic data showed that the first lineage segregation in the pre-implantation bovine embryo occurs after cavitation at E6 in the early blastocyst, suggesting a similarity with the early human blastocyst. In addition, E7 showed distinctive and more mature inner cell mass (ICM) and trophectoderm (TE) profiles. Different from the mouse, where the first lineage segregation of TE-ICM is suggested to occur at the morula stage due to CDX2-OCT4 antagonism, we found that the expression of OCT4 protein cattle expanded blastocysts is not restricted to the ICM, similar to what has been reported to occur in the human embryo. Interestingly, we also found that the second lineage segregation, which segregates the epiblast from the primitive endoderm within the ICM, starts in bovine at E8 expanded hatched late blastocysts, suggesting a potential difference with humans, where TE-ICM and epiblast-primitive endoderm has previously been reported to occur almost concurrently. We are now complementing our findings with genome editing in bovine embryos by generating knockout embryos of different target genes part of an evolutionarily conserved signaling pathway to study their effects in the early pre-implantation embryo. We aim to elucidate how early lineage specification and pluripotency establishment occurs while offering theoretical support for efficient derivation and culture of bovine embryonic stem cells.
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21
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Massuti B, Lazaro M, Isla D, Gordo R, De Alda LR, Ortega N, Oyagüez I. P2.14-63 Cost Analysis of the Management of CNS Metastases in Patients with Advanced ALK+ NSCLC: Alectinib vs Crizotinib. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1848] [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: 10/25/2022]
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22
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Izquierdo-Domínguez A, Bobolea I, Doña I, Campo P, Segura C, Ortega N, González R, Delgado J, Torres MJ, Dordal MT. Statement of the Spanish Society of Allergology and Clinical Immunology on Provocation Tests With Aspirin/Nonsteroidal Anti-inflammatory Drugs. J Investig Allergol Clin Immunol 2019; 30:1-13. [PMID: 31530511 DOI: 10.18176/jiaci.0449] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Nonsteroidal anti-inflammatory drugs (NSAIDs) are widely used throughout the world. They are frequently involved in hypersensitivity reactions, which range from local or mild reactions to systemic and severe reactions. Consequently, it is necessary to perform an exhaustive study of patients in order to make an accurate diagnosis, search for safe procedures in the case of severe reactions, and identify alternative treatment options. Various guidelines and protocols address the management of hypersensitivity to NSAIDs, although these vary widely from country to country. The Committees of Asthma, Rhinoconjunctivitis, and Drug Allergy of the Spanish Society of Allergy and Clinical Immunology (SEAIC) propose the present position statement on available options for provocation testing with aspirin/NSAIDs. This document is the fruit of an exhaustive review of current evidence and is based on recent publications addressing the diagnosis of patients with hypersensitivity to NSAIDs and on a consensus-oriented discussion among a group of experts from the SEAIC. The main objective was to draft an easy-toread, practical guideline for health care professionals in specialist areas who assess and manage patients with suspected hypersensitivity to NSAIDs. Furthermore, indications, contraindications, and procedures for oral, bronchial, and nasal provocation tests with aspirin/NSAIDs have been updated.
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Affiliation(s)
- A Izquierdo-Domínguez
- Allergy Service, Consorci Sanitari de Terrassa, Barcelona, Spain.,Allergy Unit, Clínica Diagonal, Barcelona, Spain
| | - I Bobolea
- Allergy Section, Servei de Pneumologia i Al.lèrgia Respiratòria, Hospital Clínic, Barcelona, Spain
| | - I Doña
- Allergy Unit, Hospital Regional Universitario de Málaga, Málaga, Spain.,Allergy Research Group, Instituto de Investigación Biomédica de Málaga-IBIMA, Málaga, Spain
| | - P Campo
- Allergy Unit, Hospital Regional Universitario de Málaga, Málaga, Spain.,Allergy Research Group, Instituto de Investigación Biomédica de Málaga-IBIMA, Málaga, Spain
| | - C Segura
- UGC Alergología, Hospital Universitario Virgen Macarena, Sevilla, Spain
| | - N Ortega
- Allergy Unit, Hospital Universitario de Gran Canaria Dr. Negrín, Las Palmas de Gran Canaria, Spain
| | - R González
- Allergy Service, Hospital Universitario de Canarias, Tenerife, Spain
| | - J Delgado
- UGC Alergología, Hospital Universitario Virgen Macarena, Sevilla, Spain
| | - M J Torres
- Allergy Unit, Hospital Regional Universitario de Málaga, Málaga, Spain.,Allergy Research Group, Instituto de Investigación Biomédica de Málaga-IBIMA, Málaga, Spain
| | - M T Dordal
- Allergy Unit, Servei de Medicina Interna, Hospital Universitari de Bellvitge, Barcelona, Spain
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23
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Álvarez D, Caro MR, Buendía AJ, Schnee C, Ortega N, Murcia-Belmonte A, Salinas J. Effect of female sex hormones on the developmental cycle of Chlamydia abortus compared to a penicillin-induced model of persistent infection. BMC Vet Res 2019; 15:259. [PMID: 31340824 PMCID: PMC6657046 DOI: 10.1186/s12917-019-2013-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Accepted: 07/17/2019] [Indexed: 01/02/2023] Open
Abstract
Background Chlamydia abortus, an obligate intracellular pathogen with an affinity for placenta, causes reproductive failure. In non-pregnant animals, an initial latent infection is established until the next gestation, when the microorganism is reactivated, causing abortion. The precise mechanisms that trigger the awakening of C. abortus are still unknown. Sexual hormones such as estradiol and progesterone have been shown to affect the outcome of infection in other species of the family Chlamydiaceae, while estrogens increase chlamydial infection, progesterone has the opposite effect. To try to establish whether there is a relationship between these events and the latency/ reactivation of C. abortus in the reproductive tract of small ruminants, ovine endometrial (LE) and trophoblastic (AH-1) cells were treated with estradiol or progesterone prior to their infection with C. abortus. The results are compared with those obtained for treatment with penicillin prior to infection, which is a well-established model for studying persistent infection in other chlamydial species. Cells were examined by transmission electron microscopy, and an mRNA expression analysis of 16 genes related to the chlamydial developmental cycle was made. Results The changes observed in this study by the action of sex hormones seem to depend on the type of cell where the infection develops. In addition, while the changes are morphologically similar to those induced by treatment with penicillin, the patterns of gene expression are different. Gene expression patterns therefore, seem to depend on the persistence induced models of C. abortus used. Hormone treatments induced aberrant forms in infected endometrial cells but did not affect the chlamydial morphology in trophoblast cells. At the genetic level, hormones did not induce significant changes in the expression of the studied genes. Conclusions The results suggest that penicillin induces a state of persistence in in vitro cultured C. abortus with characteristic morphological features and gene transcriptional patterns. However, the influence of hormones on the C. abortus developmental cycle is mediated by changes in the host cell environment. Furthermore, a persistent state in C. abortus cannot be characterised by a single profile of gene expression pattern, but may change depending on the model used to induce persistence.
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Affiliation(s)
- D Álvarez
- Departamento de Sanidad Animal, Facultad de Veterinaria. Campus de Espinardo, Universidad de Murcia, 30100, Murcia, Spain
| | - M R Caro
- Departamento de Sanidad Animal, Facultad de Veterinaria. Campus de Espinardo, Universidad de Murcia, 30100, Murcia, Spain.
| | - A J Buendía
- Departamento de Anatomía y Anatomía Patológica Comparadas, Facultad de Veterinaria, Regional Campus of International Excellence 'Campus Mare Nostrum, Universidad de Murcia, Murcia, Spain
| | - C Schnee
- Friedrich-Loeffler-Institut, Institute of Molecular Pathogenesis, Jena, Germany
| | - N Ortega
- Departamento de Sanidad Animal, Facultad de Veterinaria. Campus de Espinardo, Universidad de Murcia, 30100, Murcia, Spain
| | - A Murcia-Belmonte
- Departamento de Sanidad Animal, Facultad de Veterinaria. Campus de Espinardo, Universidad de Murcia, 30100, Murcia, Spain
| | - J Salinas
- Departamento de Sanidad Animal, Facultad de Veterinaria. Campus de Espinardo, Universidad de Murcia, 30100, Murcia, Spain
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Varela-Castro L, Lara-Vergara J, Ortega N, Salinas J, Colom-Cadena A, Lavín S, Tizzani P, Velarde R, Serrano E, Mentaberre G. Endemic caseous lymphadenitis in a wild Caprinae population. Vet Rec 2017; 180:405. [DOI: 10.1136/vr.103925] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/12/2017] [Indexed: 12/27/2022]
Affiliation(s)
- L. Varela-Castro
- Servei d'Ecopatologia de Fauna Salvatge (SEFaS), Departament de Medicina i Cirurgia Animals; Universitat Autònoma de Barcelona (UAB); Bellaterra Spain
| | - J. Lara-Vergara
- Servei d'Ecopatologia de Fauna Salvatge (SEFaS), Departament de Medicina i Cirurgia Animals; Universitat Autònoma de Barcelona (UAB); Bellaterra Spain
| | - N. Ortega
- Departamento de Sanidad Animal, Facultad de Veterinaria; Universidad de Murcia; Campus de Espinardo Murcia 30100 Spain
| | - J. Salinas
- Departamento de Sanidad Animal, Facultad de Veterinaria; Universidad de Murcia; Campus de Espinardo Murcia 30100 Spain
| | - A. Colom-Cadena
- Servei d'Ecopatologia de Fauna Salvatge (SEFaS), Departament de Medicina i Cirurgia Animals; Universitat Autònoma de Barcelona (UAB); Bellaterra Spain
| | - S. Lavín
- Servei d'Ecopatologia de Fauna Salvatge (SEFaS), Departament de Medicina i Cirurgia Animals; Universitat Autònoma de Barcelona (UAB); Bellaterra Spain
| | - P. Tizzani
- Dipartimento di Scienze Veterinarie; Università degli Studi di Torino; Largo Paolo Braccini 2, Grugliasco I-10095 Italy
| | - R. Velarde
- Servei d'Ecopatologia de Fauna Salvatge (SEFaS), Departament de Medicina i Cirurgia Animals; Universitat Autònoma de Barcelona (UAB); Bellaterra Spain
| | - E. Serrano
- Servei d'Ecopatologia de Fauna Salvatge (SEFaS), Departament de Medicina i Cirurgia Animals; Universitat Autònoma de Barcelona (UAB); Bellaterra Spain
- Departamento de Biología; Centre for Environmental and Marine Studies (CESAM), Universidade de Aveiro; Aveiro Portugal
| | - G. Mentaberre
- Servei d'Ecopatologia de Fauna Salvatge (SEFaS), Departament de Medicina i Cirurgia Animals; Universitat Autònoma de Barcelona (UAB); Bellaterra Spain
- Departament de Ciència Animal; Universitat de Lleida-ETSEA; Av. Alcalde Rovira Roure 191 Lleida 25198 Spain
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25
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Akolekar R, Tokunaka M, Ortega N, Syngelaki A, Nicolaides KH. Prediction of stillbirth from maternal factors, fetal biometry and uterine artery Doppler at 19-24 weeks. Ultrasound Obstet Gynecol 2016; 48:624-630. [PMID: 27854387 DOI: 10.1002/uog.17295] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Accepted: 08/31/2016] [Indexed: 06/06/2023]
Abstract
OBJECTIVES To evaluate the performance of screening for all stillbirths and those due to impaired placentation and unexplained or other causes using a combination of maternal factors, fetal biometry and uterine artery pulsatility index (UtA-PI) at 19-24 weeks' gestation and to compare this performance with that of screening by UtA-PI alone. METHODS This was a prospective screening study of 70 003 singleton pregnancies including 69 735 live births and 268 (0.38%) antepartum stillbirths; 159 (59%) were secondary to impaired placentation and 109 (41%) were due to other or unexplained causes. Multivariable logistic regression analysis was used to develop a model for prediction of stillbirth based on a combination of maternal factors, fetal biometry and UtA-PI. RESULTS Combined screening predicted 55% of all stillbirths, including 75% of those due to impaired placentation and 23% of those that were unexplained or due to other causes, at a false-positive rate of 10%. Within the impaired placentation group, the detection rate of stillbirth < 32 weeks' gestation was higher than that of stillbirth ≥ 37 weeks (88% vs 46%; P < 0.001). The performance of screening by the combined test was superior to that of selecting the high-risk group on the basis of UtA-PI > 90th percentile for gestational age, which predicted 48% of all stillbirths, 70% of those due to impaired placentation and 15% of those that were unexplained or due to other causes. CONCLUSIONS Second-trimester screening by a combination of UtA-PI with maternal factors and fetal biometry can predict a high proportion of stillbirths and, in particular, those that are due to impaired placentation. Copyright © 2016 ISUOG. Published by John Wiley & Sons Ltd.
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Affiliation(s)
- R Akolekar
- Harris Birthright Research Centre for Fetal Medicine, King's College Hospital, London, UK
- Department of Fetal Medicine, Medway Maritime Hospital, Gillingham, UK
| | - M Tokunaka
- Harris Birthright Research Centre for Fetal Medicine, King's College Hospital, London, UK
| | - N Ortega
- Harris Birthright Research Centre for Fetal Medicine, King's College Hospital, London, UK
| | - A Syngelaki
- Harris Birthright Research Centre for Fetal Medicine, King's College Hospital, London, UK
| | - K H Nicolaides
- Harris Birthright Research Centre for Fetal Medicine, King's College Hospital, London, UK
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Schiemer JA, Lascu I, Harrison RJ, Kumar A, Katiyar RS, Sanchez DA, Ortega N, Mejia CS, Schnelle W, Shinohara H, Heap AJF, Nagaratnam R, Dutton SE, Scott JF, Nair B, Mathur ND, Carpenter MA. Elastic and anelastic relaxation behaviour of perovskite multiferroics II: PbZr 0.53Ti 0.47O 3 (PZT)-PbFe 0.5Ta 0.5O 3 (PFT). J Mater Sci 2016; 52:285-304. [PMID: 27829689 PMCID: PMC5076019 DOI: 10.1007/s10853-016-0330-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Accepted: 08/22/2016] [Indexed: 06/06/2023]
Abstract
Elastic and anelastic properties of ceramic samples of multiferroic perovskites with nominal compositions across the binary join PbZr0.53Ti0.47O3-PbFe0.5Ta0.5O3 (PZT-PFT) have been assembled to create a binary phase diagram and to address the role of strain relaxation associated with their phase transitions. Structural relationships are similar to those observed previously for PbZr0.53Ti0.47O3-PbFe0.5Nb0.5O3 (PZT-PFN), but the magnitude of the tetragonal shear strain associated with the ferroelectric order parameter appears to be much smaller. This leads to relaxor character for the development of ferroelectric properties in the end member PbFe0.5Ta0.5O3. As for PZT-PFN, there appear to be two discrete instabilities rather than simply a reorientation of the electric dipole in the transition sequence cubic-tetragonal-monoclinic, and the second transition has characteristics typical of an improper ferroelastic. At intermediate compositions, the ferroelastic microstructure has strain heterogeneities on a mesoscopic length scale and, probably, also on a microscopic scale. This results in a wide anelastic freezing interval for strain-related defects rather than the freezing of discrete twin walls that would occur in a conventional ferroelastic material. In PFT, however, the acoustic loss behaviour more nearly resembles that due to freezing of conventional ferroelastic twin walls. Precursor softening of the shear modulus in both PFT and PFN does not fit with a Vogel-Fulcher description, but in PFT there is a temperature interval where the softening conforms to a power law suggestive of the role of fluctuations of the order parameter with dispersion along one branch of the Brillouin zone. Magnetic ordering appears to be coupled only weakly with a volume strain and not with shear strain but, as with multiferroic PZT-PFN perovskites, takes place within crystals which have significant strain heterogeneities on different length scales.
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Affiliation(s)
- J. A. Schiemer
- Department of Earth Sciences, University of Cambridge, Downing Street, Cambridge, CB2 3EQ UK
| | - I. Lascu
- Department of Earth Sciences, University of Cambridge, Downing Street, Cambridge, CB2 3EQ UK
| | - R. J. Harrison
- Department of Earth Sciences, University of Cambridge, Downing Street, Cambridge, CB2 3EQ UK
| | - A. Kumar
- CSIR-National Physical Laboratory, Dr. K. S. Krishnan Marg, New Delhi, 110012 India
| | - R. S. Katiyar
- Department of Physics and Institute for Functional Nanomaterials, University of Puerto Rico, PO Box 23334, San Juan, PR 00931-3334 USA
| | - D. A. Sanchez
- Department of Physics and Institute for Functional Nanomaterials, University of Puerto Rico, PO Box 23334, San Juan, PR 00931-3334 USA
| | - N. Ortega
- Department of Physics and Institute for Functional Nanomaterials, University of Puerto Rico, PO Box 23334, San Juan, PR 00931-3334 USA
| | - C. Salazar Mejia
- Max Planck Institute for Chemical Physics of Solids, Nöthnitzer Straße 40, 01187 Dresden, Germany
| | - W. Schnelle
- Max Planck Institute for Chemical Physics of Solids, Nöthnitzer Straße 40, 01187 Dresden, Germany
| | - H. Shinohara
- Cavendish Laboratory, University of Cambridge, Madingley Road, Cambridge, CB3 0HE UK
| | - A. J. F. Heap
- Cavendish Laboratory, University of Cambridge, Madingley Road, Cambridge, CB3 0HE UK
| | - R. Nagaratnam
- Cavendish Laboratory, University of Cambridge, Madingley Road, Cambridge, CB3 0HE UK
| | - S. E. Dutton
- Cavendish Laboratory, University of Cambridge, Madingley Road, Cambridge, CB3 0HE UK
| | - J. F. Scott
- Cavendish Laboratory, University of Cambridge, Madingley Road, Cambridge, CB3 0HE UK
- School of Physics and Astronomy, University of St. Andrews, North Haugh, St. Andrews, KY16 9SS UK
| | - B. Nair
- Department of Materials Science, University of Cambridge, 27 Charles Babbage Road, Cambridge, CB3 0FS UK
| | - N. D. Mathur
- Department of Materials Science, University of Cambridge, 27 Charles Babbage Road, Cambridge, CB3 0FS UK
| | - M. A. Carpenter
- Department of Earth Sciences, University of Cambridge, Downing Street, Cambridge, CB2 3EQ UK
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Navarro JA, García de la Fuente JN, Sánchez J, Martínez CM, Buendía AJ, Gutiérrez-Martín CB, Rodriguez-Ferri EF, Ortega N, Salinas J. Kinetics of Infection and Effects on the Placenta of Clamydophila abortus in Experimentally Infected Pregnant Ewes. Vet Pathol 2016; 41:498-505. [PMID: 15347822 DOI: 10.1354/vp.41-5-498] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [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: 11/19/2022]
Abstract
A Chlamydophila abortus-induced abortion model was carried out on the basis of the experimental infection of ewes at day 75 of gestation. The infection induced abortions and the birth of weak lambs during the last 3 weeks of pregnancy. To study the kinetics of the infection in the placenta and in other organs, infected ewes were killed at 105, 120, and 130 days of gestation and also several days after abortion or parturition. Infected ewes developed a systemic infection that caused a mild and transient pneumonia and focal hepatitis. Pathologic changes were observed in placentas at 120 day of gestation, although the lesions varied between animals and even between placentomes of the same placenta. The first placental area infected was the maternal stroma and epithelium next to the intercaruncular areas, where neutrophilic response seemed to control the infection. A substantial degree of multiplication of C. abortus was then observed in the trophoblast cells of the placentome, periplacentomal choriallantoic membranes, and hilius, with an inflammatory exudate composed mainly of neutrophils, some macrophages, and very scarce lymphocytes. After abortion, the lesions affected the intercotyledonary areas of the aborted placentas, whereas in the uterus significant lymphocyte infiltration was observed, together with a rapid decrease of the C. abortus antigen in the degenerated caruncular tissues.
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Affiliation(s)
- J A Navarro
- Departmento de Anatomía y Anatomía Patológica Comparadas, Facultad deVeterinaria, Universidad de Murcia, 30100 Murcia, Spain.
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Abstract
Over the past decade magnetoelectric (ME) mutiferroic (MF) materials and their devices are one of the highest priority research topics that has been investigated by the scientific ferroics community to develop the next generation of novel multifunctional materials. These systems show the simultaneous existence of two or more ferroic orders, and cross-coupling between them, such as magnetic spin, polarisation, ferroelastic ordering, and ferrotoroidicity. Based on the type of ordering and coupling, they have drawn increasing interest for a variety of device applications, such as magnetic field sensors, nonvolatile memory elements, ferroelectric photovoltaics, nano-electronics etc. Since single-phase materials exist rarely in nature with strong cross-coupling properties, intensive research activity is being pursued towards the discovery of new single-phase multiferroic materials and the design of new engineered materials with strong magneto-electric (ME) coupling. This review article summarises the development of different kinds of multiferroic material: single-phase and composite ceramic, laminated composite and nanostructured thin films. Thin-film nanostructures have higher magnitude direct ME coupling values and clear evidence of indirect ME coupling compared with bulk materials. Promising ME coupling coefficients have been reported in laminated composite materials in which the signal to noise ratio is good for device fabrication. We describe the possible applications of these materials.
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Affiliation(s)
- N Ortega
- Department of Physics and Institute for Functional Nanomaterials, University of Puerto Rico, San Juan, PR 00931-3343 USA
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Carpenter MA, Schiemer JA, Lascu I, Harrison RJ, Kumar A, Katiyar RS, Ortega N, Sanchez DA, Mejia CS, Schnelle W, Echizen M, Shinohara H, Heap AJF, Nagaratnam R, Dutton SE, Scott JF. Elastic and magnetoelastic relaxation behaviour of multiferroic (ferromagnetic + ferroelectric + ferroelastic) Pb(Fe0.5Nb0.5)O3 perovskite. J Phys Condens Matter 2015; 27:285901. [PMID: 26125192 DOI: 10.1088/0953-8984/27/28/285901] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Resonant Ultrasound Spectroscopy has been used to characterize elastic and anelastic anomalies in a polycrystalline sample of multiferroic Pb(Fe(0.5)Nb(0.5))O(3) (PFN). Elastic softening begins at ~550 K, which is close to the Burns temperature marking the development of dynamical polar nanoregions. A small increase in acoustic loss at ~425 K coincides with the value of T(*) reported for polar nanoregions starting to acquire a static or quasi-static component. Softening of the shear modulus by ~30-35% through ~395-320 K, together with a peak in acoustic loss, is due to classical strain/order parameter coupling through the cubic → tetragonal → monoclinic transition sequence of ferroelectric/ferroelastic transitions. A plateau of high acoustic loss below ~320 K is due to the mobility under stress of a ferroelastic microstructure but, instead of the typical effects of freezing of twin wall motion at some low temperature, there is a steady decrease in loss and increase in elastic stiffness below ~85 K. This is attributed to freezing of a succession of strain-coupled defects with a range of relaxation times and is consistent with a report in the literature that PFN develops a tweed microstructure over a wide temperature interval. No overt anomaly was observed near the expected Néel point, ~145 K, consistent with weak/absent spin/lattice coupling but heat capacity measurements showed that the antiferromagnetic transition is actually smeared out or suppressed. Instead, the sample is weakly ferromagnetic up to ~560 K, though it has not been possible to exclude definitively the possibility that this could be due to some magnetic impurity. Overall, evidence from the RUS data is of a permeating influence of static and dynamic strain relaxation effects which are attributed to local strain heterogeneity on a mesoscopic length scale. These, in turn, must have a role in determining the magnetic properties and multiferroic character of PFN.
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Affiliation(s)
- M A Carpenter
- Department of Earth Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EQ, UK
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Álvarez D, Salinas J, Buendía AJ, Ortega N, del Río L, Sánchez J, Navarro JA, Gallego MC, Murcia-Belmonte A, Cuello F, Caro MR. Intratracheal infection as an efficient route for testing vaccines against Chlamydia abortus in sheep. Vet J 2015; 205:393-8. [PMID: 26095034 DOI: 10.1016/j.tvjl.2015.04.036] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2014] [Revised: 04/23/2015] [Accepted: 04/29/2015] [Indexed: 10/23/2022]
Abstract
Pregnant ewes have been widely used to test vaccines against Chlamydia abortus. However, this model entails many disadvantages such as high economic costs and long periods of pregnancy. The murine model is very useful for specific studies but cannot replace the natural host for the later stages of vaccine evaluation. Therefore, a non-pregnant model of the natural host might be useful for a vaccine trial to select the best vaccine candidates prior to use of the pregnant model. With this aim, two routes of infection were assessed in young non-pregnant sheep, namely, intranasal (IN) and intratracheal (IT). In addition, groups of non-vaccinated sheep and sheep immunised with an inactivated vaccine were established to investigate the suitability of the model for testing vaccines. After the experimental infection, isolation of the microorganism in several organs, with pathological and immunohistochemical analyses, antibody production assessment and investigation by PCR of the presence of chlamydia in the vagina or rectum were carried out. Experimental IT inoculation of C. abortus induced pneumonia in sheep during the first few days post-infection, confirming the suitability of the IT route for testing vaccines in the natural host. The course of infection and the resulting pathological signs were less severe in vaccinated sheep compared with non-vaccinated animals, demonstrating the success of vaccination. IN infection did not produce evident lesions or demonstrate the presence of chlamydial antigen in the lungs and cannot be considered an appropriate model for testing vaccines.
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Affiliation(s)
- D Álvarez
- Departamento de Sanidad Animal, Facultad de Veterinaria, Regional Campus of International Excellence 'Campus Mare Nostrum', Universidad de Murcia, Spain
| | - J Salinas
- Departamento de Sanidad Animal, Facultad de Veterinaria, Regional Campus of International Excellence 'Campus Mare Nostrum', Universidad de Murcia, Spain
| | - A J Buendía
- Departamento de Anatomía y Anatomía Patológica Comparadas, Facultad de Veterinaria, Regional Campus of International Excellence 'Campus Mare Nostrum', Universidad de Murcia, Spain
| | - N Ortega
- Departamento de Sanidad Animal, Facultad de Veterinaria, Regional Campus of International Excellence 'Campus Mare Nostrum', Universidad de Murcia, Spain
| | - L del Río
- Departamento de Sanidad Animal, Facultad de Veterinaria, Regional Campus of International Excellence 'Campus Mare Nostrum', Universidad de Murcia, Spain
| | - J Sánchez
- Departamento de Anatomía y Anatomía Patológica Comparadas, Facultad de Veterinaria, Regional Campus of International Excellence 'Campus Mare Nostrum', Universidad de Murcia, Spain
| | - J A Navarro
- Departamento de Anatomía y Anatomía Patológica Comparadas, Facultad de Veterinaria, Regional Campus of International Excellence 'Campus Mare Nostrum', Universidad de Murcia, Spain
| | - M C Gallego
- Departamento de Sanidad Animal, Facultad de Veterinaria, Regional Campus of International Excellence 'Campus Mare Nostrum', Universidad de Murcia, Spain
| | - A Murcia-Belmonte
- Departamento de Sanidad Animal, Facultad de Veterinaria, Regional Campus of International Excellence 'Campus Mare Nostrum', Universidad de Murcia, Spain
| | - F Cuello
- Departamento de Sanidad Animal, Facultad de Veterinaria, Regional Campus of International Excellence 'Campus Mare Nostrum', Universidad de Murcia, Spain
| | - M R Caro
- Departamento de Sanidad Animal, Facultad de Veterinaria, Regional Campus of International Excellence 'Campus Mare Nostrum', Universidad de Murcia, Spain.
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Herrera C, Morikawa M, Castex CB, Pinto M, Ortega N, Fanti T, Garaguso R, Franco M, Castañares M, Castañeira C, Losinno L, Miragaya M, Mutto A. Blastocele fluid from in vitro– and in vivo–produced equine embryos contains nuclear DNA. Theriogenology 2015; 83:415-20. [DOI: 10.1016/j.theriogenology.2014.10.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2014] [Revised: 09/09/2014] [Accepted: 10/04/2014] [Indexed: 11/25/2022]
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Herrera C, Morikawa MI, Baca Castex C, Pinto MR, Ortega N, Fanti T, Garaguso R, Franco MJ, Castañares M, Castañeira C, Losinno L, Miragaya MH, Mutto AA. 317 SEX DETERMINATION OF EQUINE EMBRYOS BY PCR USING BLASTOCOELE FLUID. Reprod Fertil Dev 2015. [DOI: 10.1071/rdv27n1ab317] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Pre-implantation genetic diagnosis (PGD) is used in different species to determine specific genetic traits of early stage embryos. The first part of this technique involves obtaining one or more cells from the embryo. Then, the DNA in the sampled cells is amplified by PCR using specific primers. Recently Palini et al. (2013) performed PGD of human blastocysts using the DNA in blastocoele fluid. The aim of our work was to study if the sex of equine in vivo produced blastocysts could be determined by PGD using blastocoele fluid as a sample for PCR. Thirteen equine blastocysts produced by artificial insemination and uterine flush were used for this study. Once obtained each embryo was placed on a 50-µL droplet of D-PBS without calcium and magnesium supplemented with 10% FBS and 50 µg mL–1 of gentamicin (working medium) under mineral oil, on an inverted microscope equipped with a micromanipulation system. The blastocoele fluid was aspirated using a beveled micropipette (9 µm ID) and then discharged on a 1-µL microdroplet of working medium. The microdroplet containing the blastocoele fluid was transferred to a 0.2-mL DNAse-free tube containing 4 µL of DNAse-free water. A duplex PCR was performed to amplify the Y-encoded testis-specific protein (TSPY) and amelogenin (AMEL) genes. The primer sequences used for this study were: AMEL-F 5′-CCAACCCAACACCACCAGCCAAACCTCCCT-3′, AMEL-R 5′-AGCATAGGGGGCAAGGGCTGCAAGGGGAAT-3′, TSPY-F 5′-GAAGTCAGGCACACCAGTGA-3′ and TSPY-R 5′-TAAGGCTGCAGTTGTCATGC-3′. The PCR was performed twice, using the same primers and cycling protocol. Embryonic cells from embryos which have been previously diagnosed as male and female were used as positive controls for PCR. As a negative control, one tube was included containing all the components for PCR, except the DNA sample was replaced with the same volume of DNAse-free water. The amplification products were electrophoresed on a 2% agarose gel stained with ethidium bromide and visualised under UV light. Embryo viability post-blastocoele fluid aspiration was studied by individually incubating seven aspirated embryos in 50-mL microdroplets of SOFm with 19 mM D-glucose with 10% FBS under mineral oil at 38°C, in 7% O2 and 5% CO2 and observed at 24, 48, and 72 h. The diameter of embryos was registered immediately before blastocoele fluid aspiration and every 24 h during in vitro culture. The sex of 11 out of 13 embryos (84.6%) was determined and they were diagnosed as 8 males and 3 females. Six of the 7 embryos cultured in vitro expanded at 24 h and increased their diameter at 48 and 72 h. Our results demonstrate that PGD of equine embryos can be performed using blastocoele fluid only, avoiding the need of extracting cells from the embryo. The in vitro embryo survival after blastocoele fluid aspiration was high, showing that this technique does not impair the embryo's viability. Further studies are being undertaken using a larger number of embryos to demonstrate if this approach can be used with high efficiency.
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Barrionuevo D, Zhang L, Ortega N, Sokolov A, Kumar A, Misra P, Scott JF, Katiyar RS. Tunneling electroresistance in multiferroic heterostructures. Nanotechnology 2014; 25:495203. [PMID: 25414163 DOI: 10.1088/0957-4484/25/49/495203] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We demonstrate the room temperature polar switching and tunneling in PbZr0.52Ti0.48O3 (PZT) ultra-thin films of thickness 3-7 nm, sandwiched between platinum metal and ferromagnetic La0.67Sr0.33MnO3 (LSMO) layers, which also shows magnetic field dependent tunnel current switching in Pt/PbZr0.52Ti0.48O3/La0.67Sr0.33MnO3 heterostructures. The epitaxial nature, surface quality and ferroelectric switching of heterostructured films were examined with the help of x-ray diffraction patterns, atomic force microscopy, and piezo force microscopy, respectively. The capacitance versus voltage graphs show butterfly loops above the coercive field (> ±3 V) of PZT for small probe area (∼16 μm(2)). The effect of ferroelectric switching was observed in current density versus voltage curves with a large variation in high-resistance/low-resistance (HRS/LRS) ratio (2:1 to 100:1), however, these effects were more prominent in the presence of in-plane external magnetic field. The conductance is fitted with Brinkman's model, and the parabolic conductance upon bias voltage implies electron tunneling governs the transport.
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Affiliation(s)
- D Barrionuevo
- Department of Physics and Institute of Functional Nanomaterials, University of Puerto Rico, San Juan, Puerto Rico 00931-3343, USA
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34
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Ortega N, Berenguer M, Garre A, Molina M. Síndrome PFAPA del adulto. Rev Clin Esp 2014; 214:351-2. [DOI: 10.1016/j.rce.2014.03.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2014] [Revised: 02/20/2014] [Accepted: 03/27/2014] [Indexed: 10/25/2022]
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Schiemer J, Carpenter MA, Evans DM, Gregg JM, Schilling A, Arredondo M, Alexe M, Sanchez D, Ortega N, Katiyar RS, Echizen M, Colliver E, Dutton S, Scott JF. Studies of the Room-Temperature Multiferroic Pb(Fe 0.5Ta 0.5) 0.4(Zr 0.53Ti 0.47) 0.6O 3: Resonant Ultrasound Spectroscopy, Dielectric, and Magnetic Phenomena. Adv Funct Mater 2014; 24:2993-3002. [PMID: 25844085 PMCID: PMC4379905 DOI: 10.1002/adfm.201303492] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2013] [Revised: 11/28/2013] [Indexed: 06/04/2023]
Abstract
Recently, lead iron tantalate/lead zirconium titanate (PZTFT) was demonstrated to possess large, but unreliable, magnetoelectric coupling at room temperature. Such large coupling would be desirable for device applications but reproducibility would also be critical. To better understand the coupling, the properties of all 3 ferroic order parameters, elastic, electric, and magnetic, believed to be present in the material across a range of temperatures, are investigated. In high temperature elastic data, an anomaly is observed at the orthorhombic mm2 to tetragonal 4mm transition, Tot = 475 K, and a softening trend is observed as the temperature is increased toward 1300 K, where the material is known to become cubic. Thermal degradation makes it impossible to measure elastic behavior up to this temperature, however. In the low temperature region, there are elastic anomalies near ≈40 K and in the range 160-245 K. The former is interpreted as being due to a magnetic ordering transition and the latter is interpreted as a hysteretic regime of mixed rhombohedral and orthorhombic structures. Electrical and magnetic data collected below room temperature show anomalies at remarkably similar temperature ranges to the elastic data. These observations are used to suggest that the three order parameters in PZTFT are strongly coupled.
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Affiliation(s)
- J Schiemer
- Department of Earth Sciences, University of CambridgeCambridge, CB2 0EQ, UK
| | - M A Carpenter
- Department of Earth Sciences, University of CambridgeCambridge, CB2 0EQ, UK
| | - D M Evans
- School of Mathematics & Physics, Queen's University of BelfastBelfast, BT7 1NN, UK
| | - J M Gregg
- School of Mathematics & Physics, Queen's University of BelfastBelfast, BT7 1NN, UK
| | - A Schilling
- School of Mathematics & Physics, Queen's University of BelfastBelfast, BT7 1NN, UK
| | - M Arredondo
- School of Mathematics & Physics, Queen's University of BelfastBelfast, BT7 1NN, UK
| | - M Alexe
- Max Planck Institute of Microstructure PhysicsWeinberg 2, 06120, Halle (Saale), Germany
| | - D Sanchez
- Institute for Functional Nanomaterials, University of Puerto RicoPO Box 23334, San Juan, 00931–3334, Puerto Rico
| | - N Ortega
- Institute for Functional Nanomaterials, University of Puerto RicoPO Box 23334, San Juan, 00931–3334, Puerto Rico
| | - R S Katiyar
- Institute for Functional Nanomaterials, University of Puerto RicoPO Box 23334, San Juan, 00931–3334, Puerto Rico
| | - M Echizen
- Cavendish Laboratory, University of CambridgeMadingley Road, Cambridge, CB3 0HE, UK
| | - E Colliver
- Cavendish Laboratory, University of CambridgeMadingley Road, Cambridge, CB3 0HE, UK
| | - S Dutton
- Cavendish Laboratory, University of CambridgeMadingley Road, Cambridge, CB3 0HE, UK
| | - J F Scott
- Cavendish Laboratory, University of CambridgeMadingley Road, Cambridge, CB3 0HE, UK
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Evans DM, Schilling A, Kumar A, Sanchez D, Ortega N, Katiyar RS, Scott JF, Gregg JM. Switching ferroelectric domain configurations using both electric and magnetic fields in Pb(Zr,Ti)O3-Pb(Fe,Ta)O3 single-crystal lamellae. Philos Trans A Math Phys Eng Sci 2014; 372:20120450. [PMID: 24421376 PMCID: PMC3895977 DOI: 10.1098/rsta.2012.0450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Thin single-crystal lamellae cut from Pb(Zr,Ti)O3-Pb(Fe,Ta)O3 ceramic samples have been integrated into simple coplanar capacitor devices. The influence of applied electric and magnetic fields on ferroelectric domain configurations has been mapped, using piezoresponse force microscopy. The extent to which magnetic fields alter the ferroelectric domains was found to be strongly history dependent: after switching had been induced by applying electric fields, the susceptibility of the domains to change under a magnetic field (the effective magnetoelectric coupling parameter) was large. Such large, magnetic field-induced changes resulted in a remanent domain state very similar to the remanent state induced by an electric field. Subsequent magnetic field reversal induced more modest ferroelectric switching.
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Affiliation(s)
- D. M. Evans
- School of Mathematics and Physics, Queen's University Belfast, Belfast BT7 1NN, UK
| | - A. Schilling
- School of Mathematics and Physics, Queen's University Belfast, Belfast BT7 1NN, UK
| | - Ashok Kumar
- Department of Physics and Institute of Multifunctional Materials, University of Puerto Rico, San Juan, PR 00931, USA
- Materials Physics and Engineering Division, National Physical Laboratory, New Delhi 110012, India
| | - D. Sanchez
- Department of Physics and Institute of Multifunctional Materials, University of Puerto Rico, San Juan, PR 00931, USA
| | - N. Ortega
- Department of Physics and Institute of Multifunctional Materials, University of Puerto Rico, San Juan, PR 00931, USA
| | - R. S. Katiyar
- Department of Physics and Institute of Multifunctional Materials, University of Puerto Rico, San Juan, PR 00931, USA
| | - J. F. Scott
- Department of Physics, Cavendish Laboratory, J. J. Thomson Avenue, Cambridge CB3 0HE, UK
| | - J. M. Gregg
- School of Mathematics and Physics, Queen's University Belfast, Belfast BT7 1NN, UK
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Santos-González I, Sandoval-Reyes M, García-Valladares O, Ortega N, Gómez V. Design and Evaluation of a Compound Parabolic Concentrator for Heat Generation of Thermal Processes. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.egypro.2014.10.331] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Ortega N, Doña I, Moreno E, Audicana MT, Barasona MJ, Berges-Gimeno MP, Blanca-Lopez N, Lobera T, Padial A, Rosado A, Torres MJ. Practical guidelines for diagnosing hypersensitivity reactions to nonsteroidal anti-inflammatory drugs. J Investig Allergol Clin Immunol 2014; 24:308-323. [PMID: 25345301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023] Open
Abstract
Nonsteroidal anti-inflammatory drugs (NSAIDs) are the drugs most frequently involved in hypersensitivity reactions. These reactions include various clinical entities with different mechanisms leading to the release of inflammatory mediators. Characterization of patients based on clinical manifestations and suspected underlying mechanisms is critical for implementation of adequate diagnostic procedures and patient management. Our objectives were to prepare a systematic review of available scientific evidence and to provide general guidelines for the diagnosis and management of patients with hypersensitivity reactions to NSAIDs. We also propose a practical algorithm for the diagnosis of specific types of hypersensitivity to NSAIDs and provide recommendations for the management of hypersensitive patients.
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Evans DM, Schilling A, Kumar A, Sanchez D, Ortega N, Arredondo M, Katiyar RS, Gregg JM, Scott JF. Magnetic switching of ferroelectric domains at room temperature in multiferroic PZTFT. Nat Commun 2013; 4:1534. [PMID: 23443562 PMCID: PMC3586726 DOI: 10.1038/ncomms2548] [Citation(s) in RCA: 136] [Impact Index Per Article: 12.4] [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: 07/12/2012] [Accepted: 01/25/2013] [Indexed: 11/10/2022] Open
Abstract
Single-phase magnetoelectric multiferroics are ferroelectric materials that display some form of magnetism. In addition, magnetic and ferroelectric order parameters are not independent of one another. Thus, the application of either an electric or magnetic field simultaneously alters both the electrical dipole configuration and the magnetic state of the material. The technological possibilities that could arise from magnetoelectric multiferroics are considerable and a range of functional devices has already been envisioned. Realising these devices, however, requires coupling effects to be significant and to occur at room temperature. Although such characteristics can be created in piezoelectric-magnetostrictive composites, to date they have only been weakly evident in single-phase multiferroics. Here in a newly discovered room temperature multiferroic, we demonstrate significant room temperature coupling by monitoring changes in ferroelectric domain patterns induced by magnetic fields. An order of magnitude estimate of the effective coupling coefficient suggests a value of ~1 × 10−7 sm−1. Multiferroic materials that exhibit coupled ferromagnetic and ferroelectric characteristics could be useful in the development of non-volatile digital storage. Evans et al. report a single-phase multiferroic material whose room-temperature magnetoelectric coupling appears to be unusually strong.
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Affiliation(s)
- D M Evans
- School of Mathematics and Physics, Queen's University Belfast, Belfast BT7 1NN, UK
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Ayesta I, Izquierdo B, Sánchez J, Ramos J, Plaza S, Pombo I, Ortega N, Bravo H, Fradejas R, Zamakona I. Influence of EDM Parameters on Slot Machining in C1023 Aeronautical Alloy. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.procir.2013.03.059] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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41
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Buendía A, Navarro J, Caro M, Ortega N, Gallego M, Del Rio L, Cuello F, Murcia A, Sánchez J, Salinas J. IL-10 Overexpression in Transgenic Mice Increases Multiplication of Chlamydophila abortus. J Comp Pathol 2013. [DOI: 10.1016/j.jcpa.2012.11.130] [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: 11/24/2022]
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42
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Navarro J, Caro M, Ortega N, Buendía A, Gallego M, Del Rio L, Cuello F, Murcia A, Alvarez D, Sanchez J, Salinas J. A Model of Intratracheal Inoculation for Testing Vaccines Against Chlamydophila abortus in Sheep. J Comp Pathol 2013. [DOI: 10.1016/j.jcpa.2012.11.129] [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: 11/26/2022]
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del Rio L, Barberá-Cremades M, Navarro JA, Buendía AJ, Cuello F, Ortega N, Gallego MC, Salinas J, Caro MR. IFN-γ expression in placenta is associated to resistance to Chlamydia abortus after intragastric infection. Microb Pathog 2012; 56:1-7. [PMID: 23287018 DOI: 10.1016/j.micpath.2012.12.003] [Citation(s) in RCA: 3] [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] [Received: 07/30/2012] [Revised: 12/12/2012] [Accepted: 12/13/2012] [Indexed: 11/26/2022]
Abstract
Intragastric infection mimics the natural route of infection of Chlamydia abortus (etiological agent of ovine enzootic abortion). In the mouse model, intragastric experimental infection induces very mild signs of infection followed by late term abortions, as it is shown by the natural ovine host. In order to evaluate the immune mechanisms associated to the dissemination of the pathogen from the gastrointestinal tract, we have administered an intragastric dose of C. abortus to pregnant mice. Systemic and local expression of cytokines, tissue colonization and excretion of bacteria after parturition were monitored during pregnancy. Susceptible CBA/J mice showed a higher bacterial colonization of the placenta and excretion of live bacteria after parturition that were related to a higher local IL-10 expression. By contrast, resistant C57BL/6 mouse strain had higher local IFN-γ mRNA expression in the placenta just before parturition and a transient bacterial colonization of the reproductive tract, with no excretion of C. abortus after parturition. In summary, intragastric infection not only mimics the natural route of infection of C. abortus, but can also be useful in order to understand the immunopathogenesis of chlamydial abortion in the mouse.
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Affiliation(s)
- L del Rio
- Department of Animal Health, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, Spain.
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Ortega N, Kumar A, Scott JF, Chrisey DB, Tomazawa M, Kumari S, Diestra DGB, Katiyar RS. Relaxor-ferroelectric superlattices: high energy density capacitors. J Phys Condens Matter 2012; 24:445901. [PMID: 23053172 DOI: 10.1088/0953-8984/24/44/445901] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
We report the breakdown electric field and energy density of laser ablated BaTiO(3)/Ba((1-x))Sr(x)TiO(3) (x = 0.7) (BT/BST) relaxor-ferroelectric superlattices (SLs) grown on (100) MgO single crystal substrates. The dielectric constant shows a frequency dispersion below the dielectric maximum temperature (T(m)) with a merger above T(m) behaving similarly to relaxors. It also follows the basic criteria of relaxor ferroelectrics such as low dielectric loss over wide temperature and frequency, and 50 K shift in T(m) with change in probe frequency; the loss peaks follow a similar trend to the dielectric constant except that they increase with increase in frequency (~40 kHz), and satisfy the nonlinear Vogel-Fulcher relation. Well-saturated ferroelectric hysteresis and 50-80% dielectric saturation are observed under high electric field (~1.65 MV cm(-1)). The superlattices demonstrate an 'in-built' field in as grown samples at low probe frequency (<1 kHz), whereas it becomes more symmetric and centered with increase in the probe frequency system (>1 kHz) which rules out the effect of any space charge and interfacial polarization. The P-E loops show around 12.24 J cm(-3) energy density within the experimental limit, but extrapolation of this data suggests that the potential energy density could reach 46 J cm(-3). The current density versus applied electric field indicates an exceptionally high breakdown field (5.8-6.0 MV cm(-1)) and low current density (~10-25 mA cm(-2)) near the breakdown voltage. The current-voltage characteristics reveal that the space charge limited conduction mechanism prevails at very high voltage.
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Affiliation(s)
- N Ortega
- Department of Physics and Institute for Functional Nanomaterials, University of Puerto Rico, San Juan, PR 00931-3343, USA
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Manzardo C, Esteve A, Ortega N, Podzamczer D, Murillas J, Segura F, Force L, Tural C, Vilaró J, Masabeu A, Garcia I, Guadarrama M, Ferrer E, Riera M, Navarro G, Clotet B, Gatell JM, Casabona J, Miró JM. Optimal timing for initiation of highly active antiretroviral therapy in treatment-naïve human immunodeficiency virus-1-infected individuals presenting with AIDS-defining diseases: the experience of the PISCIS Cohort. Clin Microbiol Infect 2012; 19:646-53. [PMID: 22967234 DOI: 10.1111/j.1469-0691.2012.03991.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In this prospective, multicentre cohort study, we analysed specific prognostic factors and the impact of timing of highly active antiretroviral therapy (HAART) on disease progression and death among 625 human immunodeficiency virus (HIV)-1-infected, treatment-naïve patients diagnosed with an AIDS-defining disease. HAART was classified as early (<30 days) or late (30-270 days). Deferring HAART was significantly associated with faster progression to a new AIDS-defining event/death overall (p 0.009) and in patients with Pneumocystis jiroveci pneumonia (p 0.017). In the multivariate analysis, deferring HAART was associated with a higher risk of a new AIDS-defining event/death (p 0.002; hazard ratio 1.83; 95% CI 1.25-2.68). Other independent risk factors for poorer outcome were baseline diagnosis of AIDS-defining lymphoma, age >35 years, and low CD4(+) count (<50 cells/μL).
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Affiliation(s)
- C Manzardo
- Hospital Clínic-IDIBAPS, University of Barcelona, Barcelona, Spain
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Sedhom M, Pichery M, Ortega N, Foligné B, Grandjean T, Normand S, Brault L, Lefrancais E, Fallon P, Le Bert M, Quesniaux V, Chamaillard M, Girard JP, Bernhard R. P095 Neutralizing responsiveness to Interleukin-33 abrogat1es experimental colitis through enhanced mucosal wound healing. Cytokine 2012. [DOI: 10.1016/j.cyto.2012.06.183] [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: 10/28/2022]
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Donadio C, Kanaki A, Martin-Gomez A, Garcia S, Palacios-Gomez M, Donadio C, Calia D, Colombini E, DI Francesco F, Ghimenti S, Kanaki A, Onor M, Tognotti D, Fuoco R, Marka-Castro E, Torres Zamora MI, Giron-Mino J, Jaime-Solis MA, Arteaga LM, Romero H, Marka-Castro E, Akonur A, Leypoldt K, Asola M, Culleton B, Eloot S, Glorieux G, Nathalie N, Vanholder R, Perez de Jose A, Verdalles Guzman U, Abad Esttebanez S, Vega Martinez A, Barraca D, Yuste C, Bucalo L, Rincon A, Lopez-Gomez JM, Bataille P, Celine P, Raymond A, Francois G, Herve L, Michel D, Jean Louis R, Zhu F, Kotanko P, Thijssen S, Levin NW, Papamichail N, Bougiakli M, Gouva C, Antoniou S, Gianitsi S, Vlachopanou A, Chachalos S, Naka K, Kaarsavvidou D, Katopodis K, Michalis L, Sasaki K, Yasuda K, Yamato M, Surace A, Rovatti P, Steckiph D, Bandini R, Severi S, Dellacasa Bellingegni A, Santoro A, Arias M, Arias M, Sentis A, Perez N, Fontsere N, Vera M, Rodriguez N, Arcal C, Ortega N, Uriza F, Cases A, Maduell F, Abbas SR, Abbas SR, Zhu F, Kotanko P, Levin NW, Georgianos P, Sarafidis P, Nikolaidis P, Lasaridis A, Ahmed A, Ahmed A, Kaoutar H, Mohammed B, Zouhir O, Balter P, Ginsberg N, Taylor P, Sullivan T, Usvyat LA, Levin NW, Kotanko P, Zabetakis P, Moissl U, Ferrario M, Garzotto F, Wabel P, Cruz D, Tetta C, Signorini MG, Cerutti S, Brendolan A, Ronco C, Heaf J, Axelsen M, Pedersen RS, Ahmed A, Ahmed A, Amine H, Oualim Z, Ammirati AL, Guimaraes de Souza NK, Nemoto Matsui T, Luiz Vieira M, Alves de Oliveira WA, Fischer CH, Dias Carneiro F, Iizuka IJ, Aparecida de Souza M, Mallet AC, Cruz Andreoli MC, Cardoso Dos Santos BF, Rosales L, Dou Y, Carter M, Thijssen S, Kotanko P, Testa A, Sottini L, Giacon B, Prati E, Loschiavo C, Brognoli M, Marseglia C, Tommasi A, Sereni L, Palladino G, Bove S, Bosticardo G, Schillaci E, Detoma P, Bergia R, Park JW, Moon SJ, Choi HY, Ha SK, Park HC, Liao Y, Zhang L, Fu P, Igarashi H, Suzuki N, Esashi S, Masakane I, Panichi V, De Ferrari G, Saffiotti S, Sidoti A, Biagioli M, Bianchi S, Imperiali P, Gabrielli C, Conti P, Patrone P, Rombola G, Falqui V, Mura C, Icardi A, Rosati A, Santori F, Mannarino A, Bertucci A, Steckiph D, Jeong J, Jeong J, Kim OK, Kim NH, Bots M, Den Hoedt C, Grooteman MP, Van der Weerd NC, Mazairac AHA, Levesque R, Ter Wee PM, Nube MJ, Blankestijn P, Van den Dorpel MA, Park Y, Jeon J, Tessitore N, Tessitore N, Bedogna V, Girelli D, Corazza L, Jacky P, Guillaume Q, Julien B, Marcinkowski W, Drozdz M, Milkowski A, Rydzynska T, Prystacki T, August R, Benedyk-Lorens E, Bladek K, Cina J, Janiszewska G, Kaczmarek A, Lewinska T, Mendel M, Paszkot M, Trafidlo E, Trzciniecka-Kloczkowska M, Vasilevsky A, Konoplev G, Lopatenko O, Komashnya A, Visnevsky K, Gerasimchuk R, Neivelt I, Frorip A, Vostry M, Racek J, Rajdl D, Eiselt J, Malanova L, Pechter U, Selart A, Ots-Rosenberg M, Krieter DH, Seidel S, Merget K, Lemke HD, Wanner C, Krieter DH, Canaud B, Lemke HD, Rodriguez A, Morgenroth A, Von Appen K, Dragoun GP, Wanner C, Fluck R, Fouque D, Lockridge R, Motomiya Y, Uji Y, Hiramatsu T, Ando Y, Furuta M, Furuta M, Kuragano T, Kida A, Yahiro M, Otaki Y, Hasuike Y, Nonoguchi H, Nakanishi T, Sain M, Sain M, Kovacic V, Ljutic D, Radic J, Jelicic I, Yalin SF, Yalin SF, Trabulus S, Yalin AS, Altiparmak MR, Serdengecti K, Ohtsuka A, Fukami K, Ishikawa K, Ando R, Kaida Y, Adachi T, Sugi K, Okuda S, Nesterova OB, Nesterova OB, Suglobova ED, Golubev RV, Vasiliev AN, Lazeba VA, Smirnov AV, Arita K, Kihara E, Maeda K, Oda H, Doi S, Masaki T, Hidaka S, Ishioka K, Oka M, Moriya H, Ohtake T, Nomura S, Kobayashi S, Wagner S, Gmerek A, Wagner J, Wizemann V, Eftimovska - Otovic N, Spaseska-Gjurovska K, Bogdanovska S, Babalj - Banskolieva E, Milovanceva M, Grozdanovski R, Pisani A, Riccio E, Mancini A, Ambuhl P, Astrid S, Ivana P, Martin H, Thomas K, Hans-Rudolf R, Daniel A, Denes K, Marco M, Wuthrich RP, Andreas S, Andrulli S, Altieri P, Sau G, Bolasco P, Pedrini LA, Basile C, David S, Feriani M, Nebiolo PE, Ferrara R, Casu D, Logias F, Tarchini R, Cadinu F, Passaghe M, Fundoni G, Villa G, DI Iorio BR, Zoccali C, Locatelli F, Kihara E, Arita K, Hamamoto M, Maeda K, Oda H, Doi S, Masaki T, Lee DY, Kim B, Moon KH, LI Z, Fu P, Ahrenholz P, Ahrenholz P, Winkler RE, Waitz G, Wolf H, Grundstrom G, Alquist M, Holmquist M, Christensson A, Bjork P, Abdgawad M, Ekholm L, Segelmark M, Corsi C, Santoro A, De Bie J, Mambelli E, Mortara D, Santoro A, Severi S, Arroyo D, Arroyo D, Panizo N, Quiroga B, Reque J, Melero R, Rodriguez-Ferrero M, Rodriguez-Benitez P, Anaya F, Luno J, Ragon A, James A, Brunet P, Ribeiro S, Faria MS, Rocha S, Rodrigues S, Catarino C, Reis F, Nascimento H, Fernandes J, Miranda V, Quintanilha A, Belo L, Costa E, Santos-Silva A, Arund J, Tanner R, Fridolin I, Luman M, Clajus C, Clajus C, Kielstein JT, Haller H, David S, Basile C, Basile C, Libutti P, Lisi P, Vernaglione L, Casucci F, Losurdo N, Teutonico A, Lomonte C, Krisp C, Gmerek A, Wagner J, Wolters DA, Pedrini LA, Matsuyama M, Tomo T, Ishida K, Matsuyama K, Nakata T, Kadota J, Caiazzo M, Monari E, Cuoghi A, Bellei E, Bergamini S, Palladino G, Tomasi A, Baranger T, Seniuta P, Berge F, Drouillat V, Frangie C, Rosier E, Labonia W, Lescano A, Rubio D, Von der Lippe N, Jorgensen JA, Osthus TB, Waldum B, Os I, Bossola M, DI Stasio E, Antocicco M, Tazza L, Griveas I, Karameris A, Pasadakis P, Savica V, Santoro D, Saitta S, Tigano V, Bellinghieri G, Gangemi S, Daniela R, Checherita IA, Ciocalteu A, Vacaroiu IA, Niculae A, Bladek K, Stefaniak E, Pietrzak I, Krupa D, Garred L, Santoro A, Mancini E, Corrazza L, Atti M, Afsar B, Stamopoulos D, Mpakirtzi N, Gogola B, Zeibekis M, Stivarou D, Panagiotou M, Grapsa E, Vega Vega O, Barraca Nunez D, Abad Esttebanez S, Bucalo L, Yuste C, Lopez-Gomez JM, Fernandez-Lucas M, Gomis A, Teruel JL, Elias S, Quereda C, Hignell L, Humphrey S, Pacy N, Stamopoulos D, Mpakirtzi N, Afentakis N, Grapsa E. Extracorporeal dialysis: techniques and adequacy. Nephrol Dial Transplant 2012. [DOI: 10.1093/ndt/gfs224] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Salinas J, Ortega N, Borge C, Rangel MJ, Carbonero A, Perea A, Caro MR. Abortion associated with Chlamydia abortus in extensively reared Iberian sows. Vet J 2012; 194:133-4. [PMID: 22476020 DOI: 10.1016/j.tvjl.2012.03.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2011] [Revised: 03/01/2012] [Accepted: 03/03/2012] [Indexed: 11/17/2022]
Abstract
Reproductive disease was investigated in Iberian pigs on an extensive farrow-to-finish farm in the southwest of Spain. Chlamydia abortus was isolated in cell culture and C. abortus-specific PCR products were detected in placental and fetal tissues. In one batch of 14 sows, the percentage of sera positive for C. abortus specific antibodies increased from 35.7% to 85.7% in the period of 2 weeks following abortion. C. abortus may play a role in abortion in extensively reared Iberian sows.
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Affiliation(s)
- J Salinas
- Departamento de Sanidad Animal, Facultad de Veterinaria, Universidad de Murcia, Murcia, Spain
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Corbella X, Ortiga B, Juan A, Ferre C, Ortega N, Salazar A. 439 Managing Hospital-Wide Patient Flow to Address Inpatient Access Block for Emergency Patients. Ann Emerg Med 2011. [DOI: 10.1016/j.annemergmed.2011.06.473] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Sanchez J, Tomás L, Ortega N, Buendía A, del Rio L, Salinas J, Bezos J, Caro M, Navarro J. Microscopical and Immunological Features of Tuberculoid Granulomata and Cavitary Pulmonary Tuberculosis in Naturally Infected Goats. J Comp Pathol 2011; 145:107-17. [DOI: 10.1016/j.jcpa.2010.12.006] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2010] [Revised: 10/20/2010] [Accepted: 12/10/2010] [Indexed: 10/18/2022]
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