1
|
Varela C, Moreira JVS, Kocaoglu B, Dura-Bernal S, Ahmad S. A mechanism for deviance detection and contextual routing in the thalamus: a review and theoretical proposal. Front Neurosci 2024; 18:1359180. [PMID: 38486972 PMCID: PMC10938916 DOI: 10.3389/fnins.2024.1359180] [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: 12/20/2023] [Accepted: 02/15/2024] [Indexed: 03/17/2024] Open
Abstract
Predictive processing theories conceptualize neocortical feedback as conveying expectations and contextual attention signals derived from internal cortical models, playing an essential role in the perception and interpretation of sensory information. However, few predictive processing frameworks outline concrete mechanistic roles for the corticothalamic (CT) feedback from layer 6 (L6), despite the fact that the number of CT axons is an order of magnitude greater than that of feedforward thalamocortical (TC) axons. Here we review the functional architecture of CT circuits and propose a mechanism through which L6 could regulate thalamic firing modes (burst, tonic) to detect unexpected inputs. Using simulations in a model of a TC cell, we show how the CT feedback could support prediction-based input discrimination in TC cells by promoting burst firing. This type of CT control can enable the thalamic circuit to implement spatial and context selective attention mechanisms. The proposed mechanism generates specific experimentally testable hypotheses. We suggest that the L6 CT feedback allows the thalamus to detect deviance from predictions of internal cortical models, thereby supporting contextual attention and routing operations, a far more powerful role than traditionally assumed.
Collapse
Affiliation(s)
- Carmen Varela
- Psychology Department, Florida Atlantic University, Boca Raton, FL, United States
| | - Joao V. S. Moreira
- Department of Physiology and Pharmacology, State University of New York (SUNY) Downstate Health Sciences University, Brooklyn, NY, United States
| | - Basak Kocaoglu
- Center for Connected Autonomy and Artificial Intelligence, Florida Atlantic University, Boca Raton, FL, United States
| | - Salvador Dura-Bernal
- Department of Physiology and Pharmacology, State University of New York (SUNY) Downstate Health Sciences University, Brooklyn, NY, United States
- Center for Biomedical Imaging and Neuromodulation, Nathan S. Kline Institute for Psychiatric Research, Orangeburg, NY, United States
| | | |
Collapse
|
2
|
Varela C, Montero M, Serrano-Ibáñez ER, de la Vega A, Pulido MAG. Psychological interventions for healthcare professionals during the COVID-19 pandemic: A systematic review. Stress Health 2023; 39:944-955. [PMID: 37052296 DOI: 10.1002/smi.3246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 02/22/2023] [Accepted: 04/01/2023] [Indexed: 04/14/2023]
Abstract
Healthcare professionals were especially vulnerable to pandemic, both to become infected and to develop a psychological problem. The aim of this systematic review is to analyze the effectiveness of psychological interventions for healthcare professionals in reducing the experienced psychological impact. From the 405 identified studies, 10 were included in this review. Four databases were searched and the risk of bias of included studies was assessed. The studies considered were randomized controlled trials. The screening and selection process was conducted by two independent reviewers. All studies presented results related with depression, anxiety, and stress during pandemic. Six were delivered using new technologies. The most effective were two psychological interventions with frequent contact and feedback provided by a mental health professional. The psychological interventions compared with non-intervention groups presented more significant results than those compared with another intervention. The highlights of this systematic review were the urgency of designing effectiveness psychological interventions for healthcare professionals to reduce the emotional burden associate with this job. These interventions should be maintained over the time, supported by a professional and provided from the workplace. These proposals presented promising results but were more psychological resources than psychological interventions.
Collapse
Affiliation(s)
- Carmen Varela
- Universitat de Barcelona, Barcelona, Spain
- Universidad de Burgos, Burgos, Spain
| | | | | | | | | |
Collapse
|
3
|
Varela C, Hoyo Á, Tapia-Sanz ME, Jiménez-González AI, Moral BJ, Rodríguez-Fernández P, Vargas-Hernández Y, Ruiz-Sánchez LJ. An update on the underlying risk factors of eating disorders onset during adolescence: a systematic review. Front Psychol 2023; 14:1221679. [PMID: 38023032 PMCID: PMC10663237 DOI: 10.3389/fpsyg.2023.1221679] [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: 05/12/2023] [Accepted: 10/16/2023] [Indexed: 12/01/2023] Open
Abstract
Introduction Eating disorders (EDs) are serious psychological problems that affect not only the individual, but also their entire environment. The prevalence rates of EDs are higher among the adolescent population. A better understanding of ED risk factors is essential to design effective prevention and intervention programs that focus beyond the areas of weight and appearance. Methods The main objective of this systematic review was to identify the risk factors of EDs and provide a comprehensive approach, analyzing the interplay between individuals, their inner circle, and the society characteristics. The Web of Science, Scopus, CENTRAL and PsycInfo databases were searched. Results The initial search produced 8,178 references. After removing duplicates and performing the selection process by three independent reviewers, 42 articles were included in the systematic review according to the pre-specified inclusion criteria. The results suggest the relevance of society and the inner circle on the development of EDs. Discussion The internalization of the thin ideal, promoted by the current society, and living in an unsupportive, unaffectionate, non-cohesive environment were associated with the onset of EDs symptomatology. Other associated variables with this ED indicator were poor-quality relationships and feeling judged about appearance. These aspects seem to be essential for the development of individual characteristics like self-esteem or adaptative coping during adolescence. This systematic review has shown the complex etiology of EDs and the relevance of the interplay between the different areas involved. Furthermore, this information could be relevant to improve the design of innovative and more effective prevention and intervention programs. Systematic review registration PROSPERO, identifier CRD42022320881.
Collapse
Affiliation(s)
- Carmen Varela
- Universitat de Barcelona, Barcelona, Spain
- Departamento de Ciencias de la Salud, Facultad de Ciencias de la Salud, Universidad de Burgos, Burgos, Spain
- Área de Psicología, Facultad de Ciencias de la Salud, Universidad Isabel I, Burgos, Spain
| | - Ángela Hoyo
- Área de Psicología, Facultad de Ciencias de la Salud, Universidad Isabel I, Burgos, Spain
| | | | | | - Benito Javier Moral
- Área de Psicología, Facultad de Ciencias de la Salud, Universidad Isabel I, Burgos, Spain
| | | | | | | |
Collapse
|
4
|
Navarro A, Varela C, Fusté A, Andrés A, Saldaña C. The validation of the Barcelona Orthorexia Scale-Spanish version: evidence from the general population. Eat Weight Disord 2023; 28:90. [PMID: 37891414 PMCID: PMC10611628 DOI: 10.1007/s40519-023-01616-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Accepted: 10/18/2023] [Indexed: 10/29/2023] Open
Abstract
PURPOSE To validate the Spanish version of Barcelona Orthorexia Scale (BOS) in general population, analyzing its items and both its internal structure and psychometric properties (internal consistency and temporal stability). In addition, the relationship between ON and external measures of attitudes towards food was assessed. METHOD The general population sample consisted of 446 women and 104 men, aged between 18.31 and 69.44 years (M = 36.03; SD = 12.46). Of these, 39 participants answered again the questionnaires after one month from the first application. The assessment instruments were a sociodemographic questionnaire, the BOS, the Eating Attitudes Test-26 (EAT-26) and the Dutch Eating Behavior Questionnaire (DEBQ). RESULTS The final version of the BOS is composed of 35 items. Exploratory factor analysis extracted an internal structure of 5 factors (Behavioral, Concern for healthy food, Attitudes and beliefs about food, Vital achievement and Emotional discomfort). The BOS-35 and the factors presented good internal consistency (α = .80-.90), and an adequate temporal stability (r = .62-.88). The highest association was observed between the Emotional Distress (BOS) and the Diet subscale (EAT-26; r = .51). CONCLUSIONS This first validation of the BOS has shown adequate psychometric properties, being a valid and reliable instrument to assess ON in the general population. Level of evidence Level II: Evidence obtained from well-designed controlled trials without randomization.
Collapse
Affiliation(s)
- Anna Navarro
- Departament de Psicologia Clinica i Psicobiologia, Facultat de Psicologia, Universitat de Barcelona, Passeig Vall d'Hebron, 171, 08035, Barcelona, Spain
| | - Carmen Varela
- Departament de Psicologia Clinica i Psicobiologia, Facultat de Psicologia, Universitat de Barcelona, Passeig Vall d'Hebron, 171, 08035, Barcelona, Spain.
- Departmento de Ciencias de la Salud, Facultad de Ciencias de la Salud, Universidad de Burgos, Burgos, Spain.
| | - Adela Fusté
- Departament de Psicologia Clinica i Psicobiologia, Facultat de Psicologia, Universitat de Barcelona, Passeig Vall d'Hebron, 171, 08035, Barcelona, Spain
| | - Ana Andrés
- Facultat de Psicologia, Ciències de l'Educació i de l'Esport, Blanquerna, Universitat Ramon Llull, Barcelona, Spain
| | - Carmina Saldaña
- Departament de Psicologia Clinica i Psicobiologia, Facultat de Psicologia, Universitat de Barcelona, Passeig Vall d'Hebron, 171, 08035, Barcelona, Spain
| |
Collapse
|
5
|
Serrano-Ibáñez ER, Corrás T, Del Prado M, Diz J, Varela C. Psychological Variables Associated With Post-Traumatic Stress Disorder in Firefighters: A Systematic Review. Trauma Violence Abuse 2023; 24:2049-2066. [PMID: 35521996 PMCID: PMC10486174 DOI: 10.1177/15248380221082944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Firefighters are repeatedly exposed to work-related potential traumatic events and have an increased risk of developing post-traumatic stress disorder (PTSD). However, the mechanisms implicated in this relationship are not clear. The aim of this study was to analyse the risk and protective factors related to the development of PTSD in firefighters. According to PRISMA, a systematic review of scientific literature was conducted in Web of Science, PsycINFO, Scopus, PubMed and the Cochrane Central Register of Controlled Trials. Quality in Prognosis Studies (QUIPS) was used as the methodological quality indicator of the selected articles (PROSPERO reference CRD42020213009). Prognostic studies involving active firefighters with presence of post-traumatic symptomatology, presenting original findings, and written in Spanish or English were included. A total of 1768 potentially eligible articles were identified. According to the inclusion criteria, 87 articles were selected to evaluate the full text. Finally, 19 articles were included, comprising 12,298 active firefighters. There is high heterogeneity in the variables evaluated in the different studies. Taking the data for which this review has found more evidence (moderate support), operational stress, job duration, burnout, expressive suppression and rumination could be risk factors of PTSD, and belongingness and dispositional mindfulness could be protective factors. Other variables with weak support (e.g. resilience) were analysed. This review analyses the available literature, highlighting its scarcity for future research on the subject. Due to repeated trauma exposure, it is important to continue investigations and bear these variables in mind for the prevention of PTSD in firefighters.
Collapse
Affiliation(s)
| | - Tania Corrás
- Área de Psicología, Universidad Isabel I, Burgos, España
| | | | - Javier Diz
- Área de Psicología, Universidad Isabel I, Burgos, España
| | - Carmen Varela
- Área de Psicología, Universidad Isabel I, Burgos, España
| |
Collapse
|
6
|
Katz A, Porte L, Weitzel T, Varela C, Muñoz-Rehbein C, Ugalde JA, Grim C, González-Escalona N, Blondel CJ, Bravo V. Whole-genome sequencing reveals changes in genomic diversity and distinctive repertoires of T3SS and T6SS effector candidates in Chilean clinical Campylobacter strains. Front Cell Infect Microbiol 2023; 13:1208825. [PMID: 37520433 PMCID: PMC10374022 DOI: 10.3389/fcimb.2023.1208825] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 06/16/2023] [Indexed: 08/01/2023] Open
Abstract
Campylobacter is the leading cause of bacterial gastroenteritis worldwide and an emerging and neglected pathogen in South America. This zoonotic pathogen colonizes the gastrointestinal tract of a wide range of mammals and birds, with poultry as the most important reservoir for human infections. Apart from its high morbidity rates, the emergence of resistant strains is of global concern. The aims of this work were to determine genetic diversity, presence of antimicrobial resistance determinants and virulence potential of Campylobacter spp. isolated from patients with acute gastrointestinal disease at 'Clinica Alemana', Santiago de Chile. The study considered the isolation of Campylobacter spp., from stool samples during a 20-month period (January 2020 to September 2021). We sequenced (NextSeq, Illumina) and performed an in-depth analysis of the genome sequences of 88 Campylobacter jejuni and 2 Campylobacter coli strains isolated from clinical samples in Chile. We identified a high genetic diversity among C. jejuni strains and the emergence of prevalent clonal complexes, which were not identified in our previous reports. While ~40% of strains harbored a mutation in the gyrA gene associated with fluoroquinolone resistance, no macrolide-resistance determinants were detected. Interestingly, gene clusters encoding virulence factors such as the T6SS or genes associated with long-term sequelae such as Guillain-Barré syndrome showed lineage-relatedness. In addition, our analysis revealed a high degree of variability regarding the presence of fT3SS and T6SS effector proteins in comparison to type strains 81-176, F38011, and NCTC 11168 and 488. Our study provides important insights into the molecular epidemiology of this emerging foodborne pathogen. In addition, the differences observed regarding the repertoire of fT3SS and T6SS effector proteins could have an impact on the pathogenic potential and transmissibility of these Latin American isolates, posing another challenge in characterizing the infection dynamics of this emergent and neglected bacterial pathogen.
Collapse
Affiliation(s)
- Assaf Katz
- Programa de Biología Celular y Molecular, ICBM, Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Lorena Porte
- Laboratorio Clínico, Clínica Alemana de Santiago, Facultad de Medicina, Clínica Alemana, Universidad del Desarrollo, Santiago, Chile
| | - Thomas Weitzel
- Laboratorio Clínico, Clínica Alemana de Santiago, Facultad de Medicina, Clínica Alemana, Universidad del Desarrollo, Santiago, Chile
- Instituto de Ciencias e Innovación en Medicina (ICIM), Facultad de Medicina Clínica Alemana, Universidad del Desarrollo, Santiago, Chile
| | - Carmen Varela
- Laboratorio Clínico, Clínica Alemana de Santiago, Facultad de Medicina, Clínica Alemana, Universidad del Desarrollo, Santiago, Chile
| | - Cristina Muñoz-Rehbein
- Center for Bioinformatics and Integrative Biology, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago, Chile
| | - Juan A. Ugalde
- Center for Bioinformatics and Integrative Biology, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago, Chile
| | - Christopher Grim
- Center for Food Safety and Applied Nutrition, Food and Drug Administration, College Park, MD, United States
| | - Narjol González-Escalona
- Center for Food Safety and Applied Nutrition, Food and Drug Administration, College Park, MD, United States
| | - Carlos J. Blondel
- Instituto de Ciencias Biomédicas, Facultad de Medicina y Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago, Chile
| | - Verónica Bravo
- Centro de Investigaciones Biomédicas y Aplicadas (CIBAP), Escuela de Medicina, Facultad de Ciencias Médicas, Universidad de Santiago de Chile, Santiago, Chile
| |
Collapse
|
7
|
Levican A, Varela C, Porte L, Weitzel T, Briceño I, Guerra F, Mena B, Hinton A. Head-to-head comparison of CAMPYAIR aerobic culture medium versus standard microaerophilic culture for Campylobacter isolation from clinical samples. Front Cell Infect Microbiol 2023; 13:1153693. [PMID: 37384222 PMCID: PMC10293832 DOI: 10.3389/fcimb.2023.1153693] [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: 01/30/2023] [Accepted: 05/24/2023] [Indexed: 06/30/2023] Open
Abstract
Campylobacter spp. are considered the most frequent cause of acute gastroenteritis worldwide. However, outside high-income countries, its burden is poorly understood. Limited published data suggest that Campylobacter prevalence in low- and middle-income countries is high, but their reservoirs and age distribution are different. Culturing Campylobacter is expensive due to laboratory equipment and supplies needed to grow the bacterium (e.g., selective culture media, microaerophilic atmosphere, and a 42°C incubator). These requirements limit the diagnostic capacity of clinical laboratories in many resource-poor regions, leading to significant underdiagnosis and underreporting of isolation of the pathogen. CAMPYAIR, a newly developed selective differential medium, permits Campylobacter isolation without the need for microaerophilic incubation. The medium is supplemented with antibiotics to allow Campylobacter isolation in complex matrices such as human feces. The present study aims to evaluate the ability of the medium to recover Campylobacter from routine clinical samples. A total of 191 human stool samples were used to compare the ability of CAMPYAIR (aerobic incubation) and a commercial Campylobacter medium (CASA, microaerophilic incubation) to recover Campylobacter. All Campylobacter isolates were then identified by MALDI-TOF MS. CAMPYAIR showed sensitivity and specificity values of 87.5% (95% CI 47.4%-99.7%) and 100% (95% CI 98%-100%), respectively. The positive predictive value of CAMPYAIR was 100% and its negative predictive value was 99.5% (95% CI 96.7%-99.9%); Kappa Cohen coefficient was 0.93 (95% CI 0.79-1.0). The high diagnostic performance and low technical requirements of the CAMPYAIR medium could permit Campylobacter culture in countries with limited resources.
Collapse
Affiliation(s)
- Arturo Levican
- Tecnología Médica, Facultad de Ciencias, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile
| | - Carmen Varela
- Laboratorio Clínico, Clínica Alemana, Facultad de Medicina Clínica Alemana, Universidad del Desarrollo, Santiago, Chile
| | - Lorena Porte
- Laboratorio Clínico, Clínica Alemana, Facultad de Medicina Clínica Alemana, Universidad del Desarrollo, Santiago, Chile
| | - Thomas Weitzel
- Laboratorio Clínico, Clínica Alemana, Facultad de Medicina Clínica Alemana, Universidad del Desarrollo, Santiago, Chile
- Instituto de Ciencias e Innovación en Medicina (ICIM), Facultad de Medicina Clínica Alemana, Universidad del Desarrollo, Santiago, Chile
| | - Isabel Briceño
- Laboratorio Clínico, Hospital Naval Almirante Nef, Viña del Mar, Chile
| | - Francisco Guerra
- Laboratorio Clínico, Hospital Naval Almirante Nef, Viña del Mar, Chile
| | - Benjamín Mena
- Laboratorio Clínico, Hospital Naval Almirante Nef, Viña del Mar, Chile
| | - Arthur Hinton
- Poultry Microbiological Safety and Processing Research Unit, U.S. National Poultry Research Center, Agricultural Research Service, Athens, GA, United States
| |
Collapse
|
8
|
Porte L, Pérez C, Barbé M, Varela C, Vollrath V, Legarraga P, Weitzel T. Campylobacter spp. Prevalence in Santiago, Chile: A Study Based on Molecular Detection in Clinical Stool Samples from 2014 to 2019. Pathogens 2023; 12:pathogens12030504. [PMID: 36986425 PMCID: PMC10057968 DOI: 10.3390/pathogens12030504] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Revised: 03/14/2023] [Accepted: 03/21/2023] [Indexed: 03/30/2023] Open
Abstract
Campylobacter spp. is an emerging cause of infectious diarrhea worldwide. In South American countries such as Chile, its prevalence is underestimated due to inadequate detection methods. Gastrointestinal multiplex PCR panels (GMP) permit rapid and sensitive detection of bacterial pathogens and provide important epidemiological information. This study aimed to analyze Campylobacter epidemiology using the results of molecular methods and to compare molecular detection results to those of culture methods. We performed a retrospective, descriptive analysis of Campylobacter spp. detected in clinical stool samples between 2014-2019 by GMP and culture. Within 16,582 specimens examined by GMP, Campylobacter was the most prevalent enteropathogenic bacteria (8.5%), followed by Salmonella spp. (3.9%), Shigella spp./enteroinvasive Escherichia coli (EIEC) (1.9%), and Yersinia enterocolitica (0.8%). The highest Campylobacter prevalence occurred in 2014/2015. Campylobacteriosis affected more males (57.2%) and adults from 19-65 years (47.9%) and showed a bimodal seasonality with summer and winter peaks. In 11,251 routine stool cultures, Campylobacter spp. was detected in 4.6%, mostly C. jejuni (89.6%). Among 4533 samples tested by GMP and culture in parallel, GMP showed a superior sensitivity (99.1% versus 50%, respectively). The study suggests that Campylobacter spp. is the most frequent bacterial enteropathogen in Chile.
Collapse
Affiliation(s)
- Lorena Porte
- Laboratorio Clínico, Clínica Alemana, Facultad de Medicina Clínica Alemana, Universidad del Desarrollo, Santiago 7650568, Chile
| | - Caricia Pérez
- Laboratorio Clínico, Clínica Alemana, Facultad de Medicina Clínica Alemana, Universidad del Desarrollo, Santiago 7650568, Chile
| | - Mario Barbé
- Facultad de Medicina Clínica Alemana, Instituto de Ciencias e Innovación en Medicina (ICIM), Universidad del Desarrollo, Santiago 7610507, Chile
| | - Carmen Varela
- Laboratorio Clínico, Clínica Alemana, Facultad de Medicina Clínica Alemana, Universidad del Desarrollo, Santiago 7650568, Chile
| | - Valeska Vollrath
- Laboratorio Clínico, Clínica Alemana, Facultad de Medicina Clínica Alemana, Universidad del Desarrollo, Santiago 7650568, Chile
| | - Paulette Legarraga
- Laboratorio Clínico, Clínica Alemana, Facultad de Medicina Clínica Alemana, Universidad del Desarrollo, Santiago 7650568, Chile
| | - Thomas Weitzel
- Laboratorio Clínico, Clínica Alemana, Facultad de Medicina Clínica Alemana, Universidad del Desarrollo, Santiago 7650568, Chile
- Facultad de Medicina Clínica Alemana, Instituto de Ciencias e Innovación en Medicina (ICIM), Universidad del Desarrollo, Santiago 7610507, Chile
| |
Collapse
|
9
|
Fuentes I, Yubero MJ, Morandé P, Varela C, Oróstica K, Acevedo F, Rebolledo‐Jaramillo B, Arancibia E, Porte L, Palisson F. Longitudinal study of wound healing status and bacterial colonisation of Staphylococcus aureus and Corynebacterium diphtheriae in epidermolysis bullosa patients. Int Wound J 2023; 20:774-783. [PMID: 36787273 PMCID: PMC9927916 DOI: 10.1111/iwj.13922] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 07/24/2022] [Accepted: 07/27/2022] [Indexed: 11/29/2022] Open
Abstract
Epidermolysis bullosa (EB) is an inherited disorder characterised by skin fragility and the appearance of blisters and wounds. Patient wounds are often colonised or infected with bacteria, leading to impaired healing, pain and high risk of death by sepsis. Little is known about the impact of bacterial composition and susceptibility in wound resolution, and there is a need for longitudinal studies to understand healing outcomes with different types of bacterial colonisation. A prospective longitudinal study of 70 wounds from 15 severe EB patients (Junctional and Recessive Dystrophic EB) from Chile. Wounds were selected independently of their infected status. Wound cultures, including bacterial species identification, composition and Staphylococcus aureus (SA) antibiotic susceptibility were registered. Wounds were separated into categories according to their healing capacity, recognising chronic, and healing wounds. Hundred-one of the 102 wound cultures were positive for bacterial growth. From these, 100 were SA-positive; 31 were resistant to Ciprofloxacin (31%) and only seven were methicillin-resistant SA (7%). Ciprofloxacin-resistant SA was found significantly predominant in chronic wounds (**P < .01). Interestingly, atoxigenic Corynebacterium diphtheriae (CD) was identified and found to be the second most abundant recovered bacteria (31/101), present almost always in combination with SA (30/31). CD was only found in Recessive Dystrophic EB patients and not related to wound chronicity. Other less frequent bacterial species found included Pseudomonas aeruginosa, Streptococus spp. and Proteus spp. Infection was negatively associated with the healing status of wounds.
Collapse
Affiliation(s)
- Ignacia Fuentes
- DEBRA ChileSantiagoChile
- Centro de Genética y Genómica, Facultad de Medicina Clínica AlemanaUniversidad del DesarrolloSantiagoChile
| | - María Joao Yubero
- DEBRA ChileSantiagoChile
- Pediatrics and Pediatric Infectious Diseases of Clínica Alemana, Facultad de Medicina AlemanaUniversidad del DesarrolloSantiagoChile
| | | | - Carmen Varela
- Laboratorio ClínicoClinica Alemana de SantiagoSantiagoChile
| | - Karen Oróstica
- Instituto de Investigación Interdisciplinaria, Vicerrectoría AcadémicaUniversidad de TalcaTalcaChile
| | - Francisco Acevedo
- Department of Hematology Oncology, School of MedicinePontificia Universidad Católica de ChileSantiagoChile
| | - Boris Rebolledo‐Jaramillo
- Centro de Genética y Genómica, Facultad de Medicina Clínica AlemanaUniversidad del DesarrolloSantiagoChile
| | | | - Lorena Porte
- Laboratorio Clínico, Clínica Alemana de Santiago, Facultad de Medicina Clínica AlemanaUniversidad del DesarrolloSantiagoChile
| | - Francis Palisson
- DEBRA ChileSantiagoChile
- Servicio de Dermatología, Facultad de Medicina Clínica AlemanaUniversidad del DesarrolloSantiagoChile
| |
Collapse
|
10
|
Monge S, Latasa Zamalloa P, Sierra Moros MJ, Pérez Olaso O, García San Miguel L, Varela C, Rivera Ariza S, Vázquez Torres MC, Olmedo Lucerón MDC, González Yuste P, Soler Crespo P, Segura Del Pozo J, Gullón P, Carrasco JM, Martínez Sánchez EV, Redondo Bravo L, Pichiule Castañeda M, Purriños Hermida MJ, Hervada Vidal X, Huerta Gonzalez I, Margolles M, Vanaclocha Luna H, Ramalle Gómara E, Pérez Martín JJ, Chirlaque López MD, López Fernández MJ, Lorusso N, Carmona Ubago A, Rivas Perez A, Ramos Marin V, Criado Alvarez JJ, Castrillejo Pérez D, Góméz Anés AA, Frontera M, Macias Rodriguez P, Álvarez León EE, Díaz Casañas M, Lopaz Perez MA, Alonso Pérez de Ágreda JP, Navas Gutierrez P, Rosell Aguilar I, Arteagoitia Axpe JM, Gonzalez Carril F, Aparicio Azcárraga P, Simón Soria F, Suarez Rodríguez B. Lifting COVID-19 mitigation measures in Spain (May-June 2020). Enferm Infecc Microbiol Clin (Engl Ed) 2023; 41:11-17. [PMID: 36621243 PMCID: PMC9817760 DOI: 10.1016/j.eimce.2021.05.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Accepted: 05/25/2021] [Indexed: 04/14/2023]
Abstract
INTRODUCTION The state of alarm was declared in Spain due to the COVID-19 epidemic on March 14, 2020, and established population confinement measures. The objective is to describe the process of lifting these mitigation measures. METHODS The Plan for the Transition to a New Normality, approved on April 28, contained four sequential phases with progressive increase in socio-economic activities and population mobility. In parallel, a new strategy for early diagnosis, surveillance and control was implemented. A bilateral decision mechanism was established between the Spanish Government and the autonomous communities (AC), guided by a set of qualitative and quantitative indicators capturing the epidemiological situation and core capacities. The territorial units were established ad-hoc and could be from Basic Health Zones to entire AC. RESULTS The process run from May 4 to June 21, 2020. AC implemented plans for reinforcement of core capacities. Incidence decreased from a median (50% of territories) of 7.4 per 100,000 in 7 days at the beginning to 2.5 at the end. Median PCR testing increased from 53% to 89% of suspected cases and PCR total capacity from 4.5 to 9.8 per 1000 inhabitants weekly; positivity rate decreased from 3.5% to 1.8%. Median proportion of cases with traced contacts increased from 82% to 100%. CONCLUSION Systematic data collection, analysis, and interterritorial dialogue allowed adequate process control. The epidemiological situation improved but, mostly, the process entailed a great reinforcement of core response capacities nation-wide, under common criteria. Maintaining and further reinforcing capacities remained crucial for responding to future waves.
Collapse
Affiliation(s)
| | | | | | | | | | - Carmen Varela
- National Centre of Epidemiology, Instituto de Salud Carlos III, CIBER Epidemiología y Salud Pública, Madrid, Spain
| | | | | | | | | | | | | | - Pedro Gullón
- APLICA Investigación y Traslación Soc Coop Mad, Madrid, Spain
| | | | | | | | | | | | - Xurxo Hervada Vidal
- General Directorate of Public Health, Autonomous Community of Galicia, Spain
| | | | - Mario Margolles
- General Directorate of Public Health, Principality of Asturias, Spain
| | | | - Enrique Ramalle Gómara
- General Directorate of Public Health, Consumption and Care, Autonomous Community of La Rioja, Spain
| | - Jaime Jesús Pérez Martín
- General Directorate of Public Health and Addictions, IMIB-Arrixaca. Murcia University, Region of Murcia, Spain
| | | | | | - Nicola Lorusso
- General Directorate of Public Health and Pharmacy, Autonomous Community of Andalusia, Spain
| | - Alberto Carmona Ubago
- General Directorate of Public Health and Pharmacy, Autonomous Community of Andalusia, Spain
| | | | | | - Juan José Criado Alvarez
- Health Sciences Institute of Castile-La Mancha, Autonomous Community of Castile-La Mancha, Spain
| | | | - Atanasio A Góméz Anés
- General Directorate of Public Health and Consumption, Autonomous City of Melilla, Spain
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
11
|
Peñuelas M, Guerrero-Vadillo M, Valdezate S, Zamora MJ, Leon-Gomez I, Flores-Cuéllar Á, Carrasco G, Díaz-García O, Varela C. Botulism in Spain: Epidemiology and Outcomes of Antitoxin Treatment, 1997-2019. Toxins (Basel) 2022; 15:2. [PMID: 36668823 PMCID: PMC9863742 DOI: 10.3390/toxins15010002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 12/14/2022] [Accepted: 12/16/2022] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Botulism is a low incidence but potentially fatal infectious disease caused by neurotoxins produced mainly by Clostridium botulinum. There are different routes of acquisition, food-borne and infant/intestinal being the most frequent presentation, and antitoxin is the treatment of choice in all cases. In Spain, botulism is under surveillance, and case reporting is mandatory. METHODS This retrospective study attempts to provide a more complete picture of the epidemiology of botulism in Spain from 1997 to 2019 and an assessment of the treatment, including the relationship between a delay in antitoxin administration and the length of hospitalization using the Cox proportional hazards test and Kruskal-Wallis test, and an approach to the frequency of adverse events, issues for which no previous national data have been published. RESULTS Eight of the 44 outbreaks were associated with contaminated commercial foods involving ≤7 cases/outbreak; preserved vegetables were the main source of infection, followed by fish products; early antitoxin administration significantly reduces the hospital stay, and adverse reactions to the antitoxin affect around 3% of treated cases.
Collapse
Affiliation(s)
- Marina Peñuelas
- Escuela Internacional de Doctorado, Universidad Nacional de Educación a Distancia (UNED), Calle de Bravo Murillo, 38, 28015 Madrid, Spain
- Department of Communicable Diseases, National Centre of Epidemiology, Instituto de Salud Carlos III, C/Monforte de Lemos 5, Pabellón 12, 28029 Madrid, Spain
| | - María Guerrero-Vadillo
- Department of Communicable Diseases, National Centre of Epidemiology, Instituto de Salud Carlos III, C/Monforte de Lemos 5, Pabellón 12, 28029 Madrid, Spain
| | - Sylvia Valdezate
- Laboratorio de Referencia e Investigación en Taxonomía, Bacteriología, Centro Nacional de Microbiología, Instituto de Salud Carlos III, Carretera Pozuelo-Majadahonda Km 2.2, 28220 Madrid, Spain
| | - María Jesús Zamora
- Servicio de Microbiología Alimentaria, Centro Nacional de Alimentación, Agencia Española de Seguridad Alimentaria y Nutrición, Ctra. Pozuelo a Majadahonda Km 5.1, 28220 Madrid, Spain
| | - Inmaculada Leon-Gomez
- Department of Communicable Diseases, National Centre of Epidemiology, Instituto de Salud Carlos III, C/Monforte de Lemos 5, Pabellón 12, 28029 Madrid, Spain
- Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), 28029 Madrid, Spain
| | - Ángeles Flores-Cuéllar
- Medicines for Human Use Department, Agencia Española de Medicamentos y Productos Sanitarios (AEMPS), C/Campezo 1, Edificio 8, 28022 Madrid, Spain
| | - Gema Carrasco
- Laboratorio de Referencia e Investigación en Taxonomía, Bacteriología, Centro Nacional de Microbiología, Instituto de Salud Carlos III, Carretera Pozuelo-Majadahonda Km 2.2, 28220 Madrid, Spain
| | - Oliva Díaz-García
- Department of Communicable Diseases, National Centre of Epidemiology, Instituto de Salud Carlos III, C/Monforte de Lemos 5, Pabellón 12, 28029 Madrid, Spain
| | - Carmen Varela
- Department of Communicable Diseases, National Centre of Epidemiology, Instituto de Salud Carlos III, C/Monforte de Lemos 5, Pabellón 12, 28029 Madrid, Spain
- Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), 28029 Madrid, Spain
| |
Collapse
|
12
|
Guerrero-Vadillo M, Peñuelas M, Domínguez Á, Godoy P, Gómez-Barroso D, Soldevila N, Izquierdo C, Martínez A, Torner N, Avellón A, Rius C, Varela C. Epidemiological Characteristics and Spatio-Temporal Distribution of Hepatitis A in Spain in the Context of the 2016/2017 European Outbreak. Int J Environ Res Public Health 2022; 19:16775. [PMID: 36554666 PMCID: PMC9778781 DOI: 10.3390/ijerph192416775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 12/02/2022] [Accepted: 12/09/2022] [Indexed: 06/17/2023]
Abstract
The aim of our study was to describe the results of the epidemiological surveillance of hepatitis A infections in Spain in the context of the 2016/2017 European outbreak, particularly of hepatitis A outbreaks reported in the MSM population, incorporating the results of a spatio-temporal analysis of cases. Hepatitis A cases and outbreaks reported in 2016-2017 to the National Epidemiological Surveillance Network were reviewed: outbreaks in which some of the cases belonged to the MSM group were described, and clusters of hepatitis A cases in men and women were analysed using a space-time scan statistic. Twenty-six outbreaks were identified, with a median size of two cases per outbreak, with most of the outbreak-related cases belonging to the 15-44 years-old group. Nearly 85% occurred in a household setting, and in all outbreaks, the mode of transmission was direct person-to-person contact. Regarding space-time analysis, twenty statistically significant clusters were identified in the male population and eight in the female population; clusters in men presented a higher number of observed cases and affected municipalities, as well as a higher percentage of municipalities classified as large urban areas. The elevated number of cases detected in clusters of men indicates that the number of MSM-related outbreaks may be higher than reported, showing that spatio-temporal analysis is a complementary, useful tool which may improve the detection of outbreaks in settings where epidemiological investigation may be more challenging.
Collapse
Affiliation(s)
- María Guerrero-Vadillo
- Doctorate Programme in Biomedical Sciences and Public Health, National University of Distance Education (UNED), 28015 Madrid, Spain
- National Centre for Epidemiology, Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Marina Peñuelas
- National Centre for Epidemiology, Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Ángela Domínguez
- Departament de Medicina, Universitat de Barcelona (UB), 08036 Barcelona, Spain
- Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), 28029 Madrid, Spain
| | - Pere Godoy
- Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), 28029 Madrid, Spain
- Department of Medicine, Institut de Recerca Biomédica de Lleida (IRBLLeida)-Universidad de Lleida, 25008 Lleida, Spain
| | - Diana Gómez-Barroso
- National Centre for Epidemiology, Instituto de Salud Carlos III, 28029 Madrid, Spain
- Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), 28029 Madrid, Spain
| | - Nuria Soldevila
- Departament de Medicina, Universitat de Barcelona (UB), 08036 Barcelona, Spain
- Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), 28029 Madrid, Spain
| | | | - Ana Martínez
- Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), 28029 Madrid, Spain
- Agència de Salut Pública de Catalunya, 08005 Barcelona, Spain
| | - Nuria Torner
- Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), 28029 Madrid, Spain
| | - Ana Avellón
- Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), 28029 Madrid, Spain
- Hepatitis Unit, National Centre of Microbiology, Instituto de Salud Carlos III, 28222 Majadahonda, Spain
| | - Cristina Rius
- Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), 28029 Madrid, Spain
- Agència de Salut Pública de Barcelona, 08023 Barcelona, Spain
| | - Carmen Varela
- National Centre for Epidemiology, Instituto de Salud Carlos III, 28029 Madrid, Spain
- Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), 28029 Madrid, Spain
| |
Collapse
|
13
|
Fernández-Martínez NF, Ruiz-Montero R, Briones E, Baños E, García San Miguel Rodríguez-Alarcón L, Chaves JA, Abad R, Varela C, Lorusso N. Listeriosis outbreak caused by contaminated stuffed pork, Andalusia, Spain, July to October 2019. Euro Surveill 2022; 27:2200279. [PMID: 36305337 PMCID: PMC9615414 DOI: 10.2807/1560-7917.es.2022.27.43.2200279] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Between 1 July and 26 October 2019 in Andalusia, Spain, a large outbreak with 207 confirmed cases of listeriosis was identified. Confirmed cases had a median age of 44 years (range: 0-94) and 114 were women (55.1%). Most cases (n = 154) had mild gastroenteritis, 141 (68.1%) required hospitalisation and three died; five of 34 pregnant women had a miscarriage. The median incubation period was 1 day (range: 0-30), and was significantly shorter in cases presenting with gastroenteritis compared to those presenting without gastroenteritis (1 day vs. 3 days, respectively, p value < 0.001). Stuffed pork, a ready-to-eat product consumed unheated, from a single producer contaminated with Listeria monocytogenes ST388 was identified as the source of infection. The outbreak strain was identified in 189 human samples and 87 non-human (82 food and 5 environmental) samples. Notification of new cases declined abruptly after control measures were implemented. These included contaminated food recall, protocols for clinical management of suspected cases and for post-exposure prophylaxis in pregnant women and communication campaigns with concise messages to the population through social media. Given that there were 3,059 probable cases, this was the largest L. monocytogenes outbreak ever reported in Europe.
Collapse
Affiliation(s)
- Nicolás Francisco Fernández-Martínez
- Preventive Medicine and Public Health Unit, Reina Sofia University Hospital, Córdoba, Spain,Preventive Medicine and Public Health Research Group, Maimonides Biomedical Research Institute of Cordoba (IMIBIC), Córdoba, Spain
| | - Rafael Ruiz-Montero
- Preventive Medicine and Public Health Unit, Reina Sofia University Hospital, Córdoba, Spain,Preventive Medicine and Public Health Research Group, Maimonides Biomedical Research Institute of Cordoba (IMIBIC), Córdoba, Spain,Department of Medical and Surgical Sciences, University of Córdoba, Córdoba, Spain
| | - Eduardo Briones
- Public Health Unit, Sevilla Health District, Sevilla, Spain,CIBER in Epidemiology and Public Health (CIBERESP), Sevilla, Spain
| | - Elena Baños
- Public Health Unit, Sevilla Health District, Sevilla, Spain,Directorate General of Public Health and Pharmaceutical Management, Regional Ministry of Health and Consumer Affairs, Sevilla, Spain
| | | | - J. Alberto Chaves
- Directorate General of Public Health and Pharmaceutical Management, Regional Ministry of Health and Consumer Affairs, Sevilla, Spain
| | - Raquel Abad
- Neisseria, Listeria and Bordetella Unit, National Centre for Microbiology, Instituto de Salud Carlos III, Majadahonda, Madrid, Spain
| | - Carmen Varela
- National Centre of Epidemiology, Carlos III Health Institute, Madrid, Spain,CIBER of Epidemiology and Public Health (CIBERESP), Madrid, Spain
| | | | - Nicola Lorusso
- Directorate General of Public Health and Pharmaceutical Management, Regional Ministry of Health and Consumer Affairs, Sevilla, Spain
| |
Collapse
|
14
|
Varela C, Wilson MA. Reversal learning: It's just a phase. Curr Biol 2022; 32:R849-R851. [PMID: 35944488 DOI: 10.1016/j.cub.2022.06.045] [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: 11/27/2022]
Abstract
Being able to let go of behaviors that are no longer valuable and adopt actions that achieve the same outcome is fundamental for animal survival. A new study offers clues on the neural mechanisms that allow animals to reverse their behavior as needed.
Collapse
Affiliation(s)
- Carmen Varela
- Psychology Department, Florida Atlantic University, 777 Glades Road, Boca Raton, FL 33431, USA
| | - Matthew A Wilson
- Picower Institute for Learning and Memory, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
| |
Collapse
|
15
|
Romaní Vidal A, Vaughan A, Innocenti F, Colombe S, Nerlander L, Rachwal N, Ciancio BC, Mougkou A, Carvalho C, Delgado E, Mook P, de Muylder G, Peeters M, Tenev T, Golkocheva-Markova E, Vorobieva Solholm Jensen V, Koch A, Figoni J, Brouard C, Nikolopoulou G, Zisouli A, Murphy N, Broderick A, Goldberg L, Rich R, Hecht Sagie L, Tosti ME, Suligoi B, Joosten R, Pijnacker R, Fjeldheim I, Heen E, Stępień M, Polański P, Tato Marinho R, Vieira Martins J, Varela C, Avellón A, Andersson E, Jansson Mörk M, Mandal S, Watson C, Coughlan L, Chand M, Neill C, Bradley DT, Li K, O'Leary M, McInnes N, Williams CJ, Moore C, Gjini A, Duffell E, Pebody R. Hepatitis of unknown aetiology in children - epidemiological overview of cases reported in Europe, 1 January to 16 June 2022. Euro Surveill 2022; 27. [PMID: 35929429 PMCID: PMC9358403 DOI: 10.2807/1560-7917.es.2022.27.31.2200483] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Following the report of an excess in paediatric cases of severe acute hepatitis of unknown aetiology by the United Kingdom (UK) on 5 April 2022, 427 cases were reported from 20 countries in the World Health Organization European Region to the European Surveillance System TESSy from 1 January 2022 to 16 June 2022. Here, we analysed demographic, epidemiological, clinical and microbiological data available in TESSy. Of the reported cases, 77.3% were 5 years or younger and 53.5% had a positive test for adenovirus, 10.4% had a positive RT-PCR for SARS-CoV-2 and 10.3% were coinfected with both pathogens. Cases with adenovirus infections were significantly more likely to be admitted to intensive care or high-dependency units (OR = 2.11; 95% CI: 1.18–3.74) and transplanted (OR = 3.36; 95% CI: 1.19–9.55) than cases with a negative test result for adenovirus, but this was no longer observed when looking at this association separately between the UK and other countries. Aetiological studies are needed to ascertain if adenovirus plays a role in this possible emergence of hepatitis cases in children and, if confirmed, the mechanisms that could be involved.
Collapse
Affiliation(s)
| | - Aisling Vaughan
- World Health Organization Regional Office for Europe, Copenhagen, Denmark
| | - Francesco Innocenti
- European Centre for Disease Prevention and Control (ECDC), Stockholm, Sweden.,Epidemiology Unit, Regional Health Agency of Tuscany, Florence, Italy
| | - Soledad Colombe
- World Health Organization Regional Office for Europe, Copenhagen, Denmark
| | - Lina Nerlander
- European Centre for Disease Prevention and Control (ECDC), Stockholm, Sweden
| | - Natalia Rachwal
- European Centre for Disease Prevention and Control (ECDC), Stockholm, Sweden
| | | | - Aikaterini Mougkou
- European Centre for Disease Prevention and Control (ECDC), Stockholm, Sweden
| | - Carlos Carvalho
- European Centre for Disease Prevention and Control (ECDC), Stockholm, Sweden
| | - Enrique Delgado
- European Centre for Disease Prevention and Control (ECDC), Stockholm, Sweden
| | - Piers Mook
- World Health Organization Regional Office for Europe, Copenhagen, Denmark
| | | | - Michael Peeters
- Sciensano, Infectious Diseases in Humans, Viral Diseases, National Reference Centre for Hepatitis Viruses, Brussels, Belgium
| | - Tencho Tenev
- National Reference Laboratory Hepatitis viruses, NCIPD-Virology, Sofia, Bulgaria
| | | | | | - Anders Koch
- Infectious Disease Epidemiology and Prevention, Statens Serum Institut, Copenhagen, Denmark
| | - Julie Figoni
- Santé Publique France, the National Public Health Agency, Saint-Maurice, France
| | - Cécile Brouard
- Santé Publique France, the National Public Health Agency, Saint-Maurice, France
| | | | | | - Niamh Murphy
- Health Service Executive HPSC surveillance scientist on the National IMT for hepatitis, Dublin, Ireland
| | | | | | - Rivka Rich
- Israel Ministry of Health, Jerusalem, Israel
| | | | - Maria Elena Tosti
- National Centre for Global Health - Istituto Superiore di Sanità, Rome, Italy
| | - Barbara Suligoi
- Infectious Disease Department - Istituto Superiore di Sanità, Rome, Italy
| | - Rosa Joosten
- National Institute for Public Health and the Environment (RIVM), Centre for Infectious Disease Control, Bilthoven, the Netherlands
| | - Roan Pijnacker
- National Institute for Public Health and the Environment (RIVM), Centre for Infectious Disease Control, Bilthoven, the Netherlands
| | - Ingvild Fjeldheim
- Department of Infection Control and Vaccines, Norwegian Institute of Public Health, Oslo, Norway
| | - Eli Heen
- Department of Infection Control and Vaccines, Norwegian Institute of Public Health, Oslo, Norway
| | - Małgorzata Stępień
- Department of Epidemiology of Infectious Diseases and Surveillance, National Institute of Public Health NIH - National Research Institute, Warsaw, Poland
| | - Piotr Polański
- Department of Epidemiology of Infectious Diseases and Surveillance, National Institute of Public Health NIH - National Research Institute, Warsaw, Poland
| | - Rui Tato Marinho
- Gastroenterology and Hepatology Department, Hospital S. Maria; Medical School of Lisbon; National Programme for Viral Hepatitis, Portugal Ministry of Health, Lisbon, Portugal
| | - João Vieira Martins
- Directorate of Information and Analysis, Directorate-General of Health, Lisbon, Portugal
| | - Carmen Varela
- National Centre of Epidemiology, Carlos III Institute of Health, CIBERESP, Madrid, Spain
| | - Ana Avellón
- National Centre of Microbiology, Carlos III Institute of Health, CIBERESP, Madrid, Spain
| | | | | | - Sema Mandal
- United Kingdom Health Security Agency Epidemiology Cell, London, United Kingdom
| | - Conall Watson
- United Kingdom Health Security Agency Epidemiology Cell, London, United Kingdom
| | - Laura Coughlan
- United Kingdom Health Security Agency Epidemiology Cell, London, United Kingdom
| | - Meera Chand
- United Kingdom Health Security Agency Incident Director, London, United Kingdom
| | - Claire Neill
- Public Health Agency Northern Ireland, Belfast, United Kingdom
| | | | - Kathy Li
- Regional Virology Laboratory Belfast Health and Social Care Trust, Northern Ireland, Belfast, United Kingdom
| | - Maureen O'Leary
- Clinical and Protecting Health Directorate, Public Health Scotland, Glasgow, United Kingdom
| | - Neil McInnes
- West of Scotland Specialist Virology Centre, NHS Greater Glasgow and Clyde, Glasgow, United Kingdom
| | | | | | | | - Erika Duffell
- European Centre for Disease Prevention and Control (ECDC), Stockholm, Sweden
| | - Richard Pebody
- World Health Organization Regional Office for Europe, Copenhagen, Denmark
| |
Collapse
|
16
|
Larkin L, Pardos de la Gandara M, Hoban A, Pulford C, Jourdan-Da Silva N, de Valk H, Browning L, Falkenhorst G, Simon S, Lachmann R, Dryselius R, Karamehmedovic N, Börjesson S, van Cauteren D, Laisnez V, Mattheus W, Pijnacker R, van den Beld M, Mossong J, Ragimbeau C, Vergison A, Thorstensen Brandal L, Lange H, Garvey P, Nielsen CS, Herrera León S, Varela C, Chattaway M, Weill FX, Brown D, McKeown P. Investigation of an international outbreak of multidrug-resistant monophasic Salmonella Typhimurium associated with chocolate products, EU/EEA and United Kingdom, February to April 2022. Euro Surveill 2022; 27. [PMID: 35426359 PMCID: PMC9012091 DOI: 10.2807/1560-7917.es.2022.27.15.2200314] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
An extensive multi-country outbreak of multidrug-resistant monophasic Salmonella Typhimurium infection in 10 countries with 150 reported cases, predominantly affecting young children, has been linked to chocolate products produced by a large multinational company. Extensive withdrawals and recalls of multiple product lines have been undertaken. With Easter approaching, widespread product distribution and the vulnerability of the affected population, early and effective real-time sharing of microbiological and epidemiological information has been of critical importance in effectively managing this serious food-borne incident.
Collapse
Affiliation(s)
- Lesley Larkin
- Gastrointestinal Infections and Food Safety (One Health Unit), UK Health Security Agency, London, United Kingdom
| | - Maria Pardos de la Gandara
- Institut Pasteur, Université Paris Cité, Centre National de Référence des E. coli, Shigella et Salmonella, Unité des Bactéries pathogènes entériques, Paris, France
| | - Ann Hoban
- Gastrointestinal Infections and Food Safety (One Health Unit), UK Health Security Agency, London, United Kingdom
| | - Caisey Pulford
- Gastrointestinal Infections and Food Safety (One Health Unit), UK Health Security Agency, London, United Kingdom
| | | | - Henriette de Valk
- Sante Publique France, Direction des Maladies Infectieuses Unité EAZ, Paris, France
| | - Lynda Browning
- Clinical and Protecting Health Directorate, Public Health Scotland, Glasgow, United Kingdom
| | - Gerhard Falkenhorst
- Robert Koch Institute, Department of Infectious Disease Epidemiology FG 35 - Gastrointestinal Infections, Zoonoses and Tropical Infections, Berlin, Germany
| | - Sandra Simon
- Robert Koch Institute, Department of Infectious Diseases, Unit for Enteropathogenic Bacteria and Legionella / National Reference Centre for Salmonella and other Bacterial Enterics, Wernigerode, Germany
| | - Raskit Lachmann
- Robert Koch Institute, Department of Infectious Disease Epidemiology FG 35 - Gastrointestinal Infections, Zoonoses and Tropical Infections, Berlin, Germany
| | - Rikard Dryselius
- Public Health Agency of Sweden, Unit for Zoonoses and Antibiotic Resistance, Stockholm, Sweden
| | - Nadja Karamehmedovic
- Public Health Agency of Sweden, Unit for laboratory surveillance of bacterial pathogens, Stockholm, Sweden
| | - Stefan Börjesson
- Public Health Agency of Sweden, Unit for Zoonoses and Antibiotic Resistance, Stockholm, Sweden
| | - Dieter van Cauteren
- Epidemiology of infectious diseases, Department of Epidemiology and Public Health, Sciensano, Brussels, Belgium
| | - Valeska Laisnez
- ECDC Fellowship Programme, Field Epidemiology path (EPIET), European Centre for Disease Prevention and Control (ECDC), Stockholm, Sweden
- Epidemiology of infectious diseases, Department of Epidemiology and Public Health, Sciensano, Brussels, Belgium
| | - Wesley Mattheus
- National Reference Centre for Salmonella and Shigella, Sciensano, Brussels, Belgium
| | - Roan Pijnacker
- National Institute for Public Health and the Environment (RIVM), Centre for Infectious Disease Control, Bilthoven, Netherlands
| | - Maaike van den Beld
- National Institute for Public Health and the Environment (RIVM), Centre for Infectious Disease Control, Bilthoven, Netherlands
| | - Joël Mossong
- Health Inspection, Health Directorate, Luxembourg
| | - Catherine Ragimbeau
- Laboratoire National de Santé, Epidemiology and Microbial Genomics, Dudelange, Luxembourg
| | | | - Lin Thorstensen Brandal
- Department of Infection Control and Preparedness, Norwegian Institute of Public Health, Oslo, Norway
| | - Heidi Lange
- Department of Infection Control and Preparedness, Norwegian Institute of Public Health, Oslo, Norway
| | | | - Charlotte Salgaard Nielsen
- ECDC Fellowship Programme, Field Epidemiology path (EPIET), European Centre for Disease Prevention and Control (ECDC), Stockholm, Sweden
- HSE -Health Protection Surveillance Centre, Dublin, Ireland
| | - Silvia Herrera León
- Instituto de Salud Carlos III. Centro Nacional de Microbiología, Madrid, Spain
| | - Carmen Varela
- Instituto de Salud Carlos III. CIBER epidemiología y salud pública. Madrid, Spain
| | - Marie Chattaway
- Specialist Scientific Reference Service (Salmonella), Gastrointestinal Bacteria Reference Unit, UK Health Security Agency, London, United Kingdom
| | - François-Xavier Weill
- Institut Pasteur, Université Paris Cité, Centre National de Référence des E. coli, Shigella et Salmonella, Unité des Bactéries pathogènes entériques, Paris, France
| | - Derek Brown
- Scottish Microbiology Reference Laboratories, Glasgow, United Kingdom
| | - Paul McKeown
- HSE -Health Protection Surveillance Centre, Dublin, Ireland
| |
Collapse
|
17
|
Becker LA, Penagos H, Flores FJ, Manoach DS, Wilson MA, Varela C. Eszopiclone and Zolpidem Produce Opposite Effects on Hippocampal Ripple Density. Front Pharmacol 2022; 12:792148. [PMID: 35087405 PMCID: PMC8787044 DOI: 10.3389/fphar.2021.792148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Accepted: 12/13/2021] [Indexed: 12/03/2022] Open
Abstract
Clinical populations have memory deficits linked to sleep oscillations that can potentially be treated with sleep medications. Eszopiclone and zolpidem (two non-benzodiazepine hypnotics) both enhance sleep spindles. Zolpidem improved sleep-dependent memory consolidation in humans, but eszopiclone did not. These divergent results may reflect that the two drugs have different effects on hippocampal ripple oscillations, which correspond to the reactivation of neuronal ensembles that represent previous waking activity and contribute to memory consolidation. We used extracellular recordings in the CA1 region of rats and systemic dosing of eszopiclone and zolpidem to test the hypothesis that these two drugs differentially affect hippocampal ripples and spike activity. We report evidence that eszopiclone makes ripples sparser, while zolpidem increases ripple density. In addition, eszopiclone led to a drastic decrease in spike firing, both in putative pyramidal cells and interneurons, while zolpidem did not substantially alter spiking. These results provide an explanation of the different effects of eszopiclone and zolpidem on memory in human studies and suggest that sleep medications can be used to regulate hippocampal ripple oscillations, which are causally linked to sleep-dependent memory consolidation.
Collapse
Affiliation(s)
- Logan A Becker
- Department of Neuroscience and Behavior, Stony Brook University, Stony Brook, NY, United States.,Department of Neuroscience, University of Texas at Austin, Austin, TX, United States.,Psychology Department, Florida Atlantic University, Boca Raton, FL, United States
| | - Hector Penagos
- Picower Institute for Learning and Memory, Massachusetts Institute of Technology, Cambridge, MA, United States.,Center for Brains Minds and Machines, Massachusetts Institute of Technology, Boston, MA, United States
| | - Francisco J Flores
- Picower Institute for Learning and Memory, Massachusetts Institute of Technology, Cambridge, MA, United States.,Center for Brains Minds and Machines, Massachusetts Institute of Technology, Boston, MA, United States.,Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States
| | - Dara S Manoach
- Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States.,Athinoula A. Martinos Center for Biomedical Imaging, Charlestown, MA, United States
| | - Matthew A Wilson
- Picower Institute for Learning and Memory, Massachusetts Institute of Technology, Cambridge, MA, United States.,Center for Brains Minds and Machines, Massachusetts Institute of Technology, Boston, MA, United States
| | - Carmen Varela
- Picower Institute for Learning and Memory, Massachusetts Institute of Technology, Cambridge, MA, United States.,Center for Brains Minds and Machines, Massachusetts Institute of Technology, Boston, MA, United States.,Psychology Department, Florida Atlantic University, Boca Raton, FL, United States
| |
Collapse
|
18
|
Villodre C, Taccogna L, Zapater P, Cantó M, Mena L, Ramia JM, Lluís F, Afonso N, Aguilella V, Aguiló J, Alados JC, Alberich M, Apio AB, Balongo R, Bra E, Bravo-Gutiérrez A, Briceño FJ, Cabañas J, Cánovas G, Caravaca I, Carbonell S, Carrera-Dacosta E, Castro EE, Caula C, Choolani-Bhojwani E, Codina A, Corral S, Cuenca C, Curbelo-Peña Y, Delgado-Morales MM, Delgado-Plasencia L, Doménech E, Estévez AM, Feria AM, Gascón-Domínguez MA, Gianchandani R, González C, Hevia RJ, González MA, Hidalgo JM, Lainez M, Lluís N, López F, López-Fernández J, López-Ruíz JA, Lora-Cumplido P, Madrazo Z, Marchena J, de la Cuadra MB, Martín S, Casas MI, Martínez P, Mena-Mateos A, Morales-García D, Mulas C, Muñoz-Forner E, Naranjo A, Navarro-Sánchez A, Oliver I, Ortega I, Ortega-Higueruelo R, Ortega-Ruiz S, Osorio J, Padín MH, Pamies JJ, Paredes M, Pareja-Ciuró F, Parra J, Pérez-Guarinós CV, Pérez-Saborido B, Pintor-Tortolero J, Plua-Muñiz K, Rey M, Rodríguez I, Ruiz C, Ruíz R, Ruiz S, Sánchez A, Sánchez D, Sánchez R, Sánchez-Cabezudo F, Sánchez-Santos R, Santos J, Serrano-Paz MP, Soria-Aledo V, Tallón-Aguilar L, Valdivia-Risco JH, Vallverdú-Cartié H, Varela C, Villar-Del-Moral J, Zambudio N. Simplified risk-prediction for benchmarking and quality improvement in emergency general surgery. Prospective, multicenter, observational cohort study. Int J Surg 2022; 97:106168. [PMID: 34785344 DOI: 10.1016/j.ijsu.2021.106168] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 10/24/2021] [Accepted: 11/03/2021] [Indexed: 02/07/2023]
Abstract
BACKGROUND AND AIMS Emergency General Surgery (EGS) conditions account for millions of deaths worldwide, yet it is practiced without benchmarking-based quality improvement programs. The aim of this observational, prospective, multicenter, nationwide study was to determine the best benchmark cutoff points in EGS, as a reference to guide improvement measures. METHODS Over a 6-month period, 38 centers (5% of all public hospitals) attending EGS patients on a 24-h, 7-days a week basis, enrolled consecutive patients requiring an emergent/urgent surgical procedure. Patients were stratified into cohorts of low (i.e., expected morbidity risk <33%), middle and high risk using the novel m-LUCENTUM calculator. RESULTS A total of 7258 patients were included; age (mean ± SD) was 51.1 ± 21.5 years, 43.2% were female. Benchmark cutoffs in the low-risk cohort (5639 patients, 77.7% of total) were: use of laparoscopy ≥40.9%, length of hospital stays ≤3 days, any complication within 30 days ≤ 17.7%, and 30-day mortality ≤1.1%. The variables with the greatest impact were septicemia on length of hospital stay (21 days; adjusted beta coefficient 16.8; 95% CI: 15.3 to 18.3; P < .001), and respiratory failure on mortality (risk-adjusted population attributable fraction 44.6%, 95% CI 29.6 to 59.6, P < .001). Use of laparoscopy (odds ratio 0.764, 95% CI 0.678 to 0.861; P < .001), and intraoperative blood loss (101-500 mL: odds ratio 2.699, 95% CI 2.152 to 3.380; P < .001; and 500-1000 mL: odds ratio 2.875, 95% CI 1.403 to 5.858; P = .013) were associated with increased morbidity. CONCLUSIONS This study offers, for the first time, clinically-based benchmark values in EGS and identifies measures for improvement.
Collapse
Affiliation(s)
- C Villodre
- Hospital Gran Canaria Doctor Negrín, Las Palmas de Gran Canarias, Spain Hospital Clínico Universitario Lozano Blesa, Zaragoza, Spain Hospital Lluís Alcanyís de Xàtiva, Valencia, Spain Hospital Universitario de Badajoz, Badajoz, Spain Hospital Universitario de Bellvitge, Barcelona, Spain Hospital Marina Baixa, Alicante, Spain Hospital Juan Ramón Jiménez, Infanta Elena, Huelva, Spain Hospital Infanta Cristina, Parla, Madrid, Spain Hospital Universitario de Canarias, Tenerife, Spain Hospital Reina Sofía de Córdoba, Córdoba, Spain H. Ramón y Cajal, Madrid, Spain Hospital Parc Taulí de Sabadell, Barcelona, Spain Hospital General Universitario de Alicante, Alicante, Spain Complejo Hospitalario Universitario de Vigo, Hospital Pontevedra, Spain Hospital Trueta de Girona, Girona, Spain Hospital Universitario Rio Hortega, Valladolid, Spain Hospital Mutua Terrassa, Barcelona, Spain Consorci Hospitalari de Vic, Barcelona, Spain POVISA, Pontevedra, Spain Hospital Universitario Nuestra Señora de Candelaria, Tenerife, Spain Hospital Universitario Basurto, Bizkaia, Spain Hospital Universitario Marqués de Valdecilla, Santander, Spain Hospital de Viladecans, Barcelona, Spain Hospital Clínico de Valencia, Valencia, Spain Hospital Universitario Insular de Gran Canaria, Las Palmas, Spain Hospital Vírgen de la Macarena, Sevilla, Spain Hospital Cabueñes, Gijón, Spain Complejo Hospitalario de Jaén, Jaén, Spain Hospital Universitari Sant Joan de Reus, Tarragona, Spain Hospital Universitario Infanta Sofía, Madrid, Spain Complejo Hospitalario Torrecárdenas, Almería, Spain Hospital Sant Pau i Santa Tecla, Tarragona, Spain Hospital General Rafael Méndez de Lorca, Murcia, Spain Hospital Vírgen del Rocío, Sevilla, Spain Hospital Morales Meseguer, Murcia, Spain Hospital del Vinalopó, Alicante, Spain Hospital Universitario del Vinalopó, Alicante, Spain Hospital Universitario Virgen de las Nieves, Granada, Spain Department of Surgery, General University Hospital of Alicante, Alicante, Spain Department of Clinical Pharmacology, General University Hospital of Alicante, Alicante, Spain Computing, BomhardIP, Alicante, Spain Department of Clinical Documentation, General University Hospital of Alicante, Alicante, Spain Institute of Health and Biomedical Research of Alicante, ISABIAL, Alicante, Spain
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
19
|
Martínez-González S, Alvarez RM, Martín JI, García AB, Riesco-Fagundo C, Varela C, Rodríguez Hergueta A, González Cantalapiedra E, Albarrán MI, Gómez-Casero E, Cebriá A, Aguirre E, Ajenjo N, Cebrián D, Di Geronimo B, Cunningham D, O’Neill M, Dave HPG, Blanco-Aparicio C, Pastor J. Macrocyclization as a Source of Desired Polypharmacology. Discovery of Triple PI3K/mTOR/PIM Inhibitors. ACS Med Chem Lett 2021; 12:1794-1801. [PMID: 34795869 PMCID: PMC8591745 DOI: 10.1021/acsmedchemlett.1c00412] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 10/28/2021] [Indexed: 12/23/2022] Open
Abstract
The PI3K/AKT/mTOR and PIM kinase pathways contribute to the development of several hallmarks of cancer. Cotargeting of these pathways has exhibited promising synergistic therapeutic effects in liquid and solid tumor types. To identify molecules with combined activities, we cross-screened our collection of PI3K/(±mTOR) macrocycles (MCXs) and identified the MCX thieno[3,2-d]pyrimidine derivative 2 as a moderate dual PI3K/PIM-1 inhibitor. We report the medicinal chemistry exploration and biological characterization of a series of thieno[3,2-d]pyrimidine MCXs, which led to the discovery of IBL-302 (31), a potent, selective, and orally bioavailable triple PI3K/mTOR/PIM inhibitor. IBL-302, currently in late preclinical development (AUM302), has recently demonstrated efficacy in neuroblastoma and breast cancer xenografts. Additionally, during the course of our experiments, we observed that macrocyclization was essential to obtain the desired multitarget profile. As a matter of example, the open precursors 35-37 were inactive against PIM whereas MCX 28 displayed low nanomolar activity.
Collapse
Affiliation(s)
- Sonia Martínez-González
- Experimental
Therapeutics Programme, Spanish National
Cancer Research Centre (CNIO), C/Melchor Fernández Almagro 3, E-28029 Madrid, Spain
| | - Rosa M. Alvarez
- Experimental
Therapeutics Programme, Spanish National
Cancer Research Centre (CNIO), C/Melchor Fernández Almagro 3, E-28029 Madrid, Spain
| | - José I. Martín
- Experimental
Therapeutics Programme, Spanish National
Cancer Research Centre (CNIO), C/Melchor Fernández Almagro 3, E-28029 Madrid, Spain
| | - Ana Belén García
- Experimental
Therapeutics Programme, Spanish National
Cancer Research Centre (CNIO), C/Melchor Fernández Almagro 3, E-28029 Madrid, Spain
| | - Concepción Riesco-Fagundo
- Experimental
Therapeutics Programme, Spanish National
Cancer Research Centre (CNIO), C/Melchor Fernández Almagro 3, E-28029 Madrid, Spain
| | - Carmen Varela
- Experimental
Therapeutics Programme, Spanish National
Cancer Research Centre (CNIO), C/Melchor Fernández Almagro 3, E-28029 Madrid, Spain
| | - Antonio Rodríguez Hergueta
- Experimental
Therapeutics Programme, Spanish National
Cancer Research Centre (CNIO), C/Melchor Fernández Almagro 3, E-28029 Madrid, Spain
| | - Esther González Cantalapiedra
- Experimental
Therapeutics Programme, Spanish National
Cancer Research Centre (CNIO), C/Melchor Fernández Almagro 3, E-28029 Madrid, Spain
| | - M. I. Albarrán
- Experimental
Therapeutics Programme, Spanish National
Cancer Research Centre (CNIO), C/Melchor Fernández Almagro 3, E-28029 Madrid, Spain
| | - Elena Gómez-Casero
- Experimental
Therapeutics Programme, Spanish National
Cancer Research Centre (CNIO), C/Melchor Fernández Almagro 3, E-28029 Madrid, Spain
| | - Antonio Cebriá
- Experimental
Therapeutics Programme, Spanish National
Cancer Research Centre (CNIO), C/Melchor Fernández Almagro 3, E-28029 Madrid, Spain
| | - Enara Aguirre
- Experimental
Therapeutics Programme, Spanish National
Cancer Research Centre (CNIO), C/Melchor Fernández Almagro 3, E-28029 Madrid, Spain
| | - Nuria Ajenjo
- Experimental
Therapeutics Programme, Spanish National
Cancer Research Centre (CNIO), C/Melchor Fernández Almagro 3, E-28029 Madrid, Spain
| | - David Cebrián
- Experimental
Therapeutics Programme, Spanish National
Cancer Research Centre (CNIO), C/Melchor Fernández Almagro 3, E-28029 Madrid, Spain
| | - Bruno Di Geronimo
- Experimental
Therapeutics Programme, Spanish National
Cancer Research Centre (CNIO), C/Melchor Fernández Almagro 3, E-28029 Madrid, Spain
| | - Darren Cunningham
- Inflection
Biosciences Ltd., Suite
15, Anglesea 419 House, Carysfort Avenue Blackrock, Dublin A94 VC59, Ireland
| | - Michael O’Neill
- Inflection
Biosciences Ltd., Suite
15, Anglesea 419 House, Carysfort Avenue Blackrock, Dublin A94 VC59, Ireland
| | - Harish P. G. Dave
- AUM
Biosciences, 24-428 16A,
10 Anson Road, International Plaza, Singapore 429 079903
| | - Carmen Blanco-Aparicio
- Experimental
Therapeutics Programme, Spanish National
Cancer Research Centre (CNIO), C/Melchor Fernández Almagro 3, E-28029 Madrid, Spain
| | - Joaquín Pastor
- Experimental
Therapeutics Programme, Spanish National
Cancer Research Centre (CNIO), C/Melchor Fernández Almagro 3, E-28029 Madrid, Spain
| |
Collapse
|
20
|
Domínguez A, Varela C, Soldevila N, Izquierdo C, Guerrero M, Peñuelas M, Martínez A, Godoy P, Borràs E, Rius C, Torner N, Avellón AM, Castilla J. Hepatitis A Outbreak Characteristics: A Comparison of Regions with Different Vaccination Strategies, Spain 2010-2018. Vaccines (Basel) 2021; 9:1214. [PMID: 34835145 PMCID: PMC8620672 DOI: 10.3390/vaccines9111214] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 10/08/2021] [Accepted: 10/15/2021] [Indexed: 12/25/2022] Open
Abstract
We compared the cumulative incidence and characteristics of hepatitis A outbreaks in two groups of Spanish autonomous regions according to whether a universal or risk group vaccination strategy was followed. Outbreaks between 2010 and 2018 were analyzed. The cumulative incidence rate of outbreaks was estimated and compared by estimating the rate ratio (RR). The characteristics of the outbreaks and those of the first cases were compared. Adjusted OR (aOR) were calculated using a multivariate logistic regression model. Outbreak incidence was 16.04 per million persons in regions with universal vaccination and 20.76 in those with risk-group vaccination (RR 0.77; 95%CI 0.62-0.94). Imported outbreaks accounted for 65% in regions with universal vaccination and 28.7% in regions with risk-group vaccination (aOR 3.88; 95%CI 2.13-7.09). Adolescents and young adults aged 15-44 years and men who have sex with men were less frequently the first case of the outbreak in regions with a universal vaccination strategy (aOR 0.54; 95%CI 0.32-0.92 and 0.23; 95%CI 0.07-0.82, respectively). The cumulative incidence rate of outbreaks was lower in regions with universal vaccination. In all regions, independently of the vaccination strategy, activities to vaccinate persons belonging to high-risk groups for infection should be emphasized.
Collapse
Affiliation(s)
- Angela Domínguez
- Department of Medicine, Universidad de Barcelona, 08036 Barcelona, Spain;
- CIBER Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, 28029 Madrid, Spain; (C.V.); (A.M.); (P.G.); (E.B.); (C.R.); (N.T.); (A.M.A.); (J.C.)
| | - Carmen Varela
- CIBER Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, 28029 Madrid, Spain; (C.V.); (A.M.); (P.G.); (E.B.); (C.R.); (N.T.); (A.M.A.); (J.C.)
- Centro Nacional de Epidemiología, Instituto de Salud Carlos III, 28029 Madrid, Spain; (M.G.); (M.P.)
| | - Núria Soldevila
- Department of Medicine, Universidad de Barcelona, 08036 Barcelona, Spain;
- CIBER Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, 28029 Madrid, Spain; (C.V.); (A.M.); (P.G.); (E.B.); (C.R.); (N.T.); (A.M.A.); (J.C.)
| | | | - María Guerrero
- Centro Nacional de Epidemiología, Instituto de Salud Carlos III, 28029 Madrid, Spain; (M.G.); (M.P.)
| | - Marina Peñuelas
- Centro Nacional de Epidemiología, Instituto de Salud Carlos III, 28029 Madrid, Spain; (M.G.); (M.P.)
| | - Ana Martínez
- CIBER Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, 28029 Madrid, Spain; (C.V.); (A.M.); (P.G.); (E.B.); (C.R.); (N.T.); (A.M.A.); (J.C.)
- Agència de Salut Pública de Catalunya, 08005 Barcelona, Spain;
| | - Pere Godoy
- CIBER Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, 28029 Madrid, Spain; (C.V.); (A.M.); (P.G.); (E.B.); (C.R.); (N.T.); (A.M.A.); (J.C.)
- Agència de Salut Pública de Catalunya, 08005 Barcelona, Spain;
| | - Eva Borràs
- CIBER Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, 28029 Madrid, Spain; (C.V.); (A.M.); (P.G.); (E.B.); (C.R.); (N.T.); (A.M.A.); (J.C.)
- Agència de Salut Pública de Catalunya, 08005 Barcelona, Spain;
| | - Cristina Rius
- CIBER Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, 28029 Madrid, Spain; (C.V.); (A.M.); (P.G.); (E.B.); (C.R.); (N.T.); (A.M.A.); (J.C.)
- Agència de Salut Pública de Barcelona, 08023 Barcelona, Spain
| | - Núria Torner
- CIBER Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, 28029 Madrid, Spain; (C.V.); (A.M.); (P.G.); (E.B.); (C.R.); (N.T.); (A.M.A.); (J.C.)
| | - Ana María Avellón
- CIBER Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, 28029 Madrid, Spain; (C.V.); (A.M.); (P.G.); (E.B.); (C.R.); (N.T.); (A.M.A.); (J.C.)
- Centro Nacional de Microbiología, Instituto de Salud Carlos III, 28222 Madrid, Spain
| | - Jesús Castilla
- CIBER Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, 28029 Madrid, Spain; (C.V.); (A.M.); (P.G.); (E.B.); (C.R.); (N.T.); (A.M.A.); (J.C.)
- Instituto Salud Pública de Navarra-IdiSNA, 31003 Pamplona, Spain
| | | |
Collapse
|
21
|
Williams BM, Purcell LN, Varela C, Gallaher J, Charles A. Non reducible inguinal hernias in Malawi: an occupational hazard. Hernia 2021; 25:1339-1344. [PMID: 33222030 PMCID: PMC8137715 DOI: 10.1007/s10029-020-02337-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Accepted: 11/04/2020] [Indexed: 10/22/2022]
Abstract
PURPOSE Inguinal hernias are one of the most common surgical conditions worldwide. Due to limited surgical access in low- and middle-income countries, many hernias present emergently; however, data on the resultant outcome disparities is limited. We, therefore, sought to describe the epidemiology, clinical features, and outcomes of incarcerated inguinal hernias at a tertiary center in Malawi. METHODS This is a retrospective analysis of the acute care surgery registry at Kamuzu Central Hospital in Lilongwe, Malawi. All patients > 13 years admitted with a non-reducible inguinal hernia from 2013 to 2019 were included. The primary outcome was in-hospital mortality. A Poisson multivariable regression determined factors associated with increased risk of mortality. RESULTS A total of 297 patients presented with non-reducible inguinal hernias, the majority of which were young (median age 38), male (93.6%), farmers (47.8%). Of the 81% who underwent surgery, 55% were delayed ≥ 24 h. 19.5% of hernias were strangulated. Overall mortality was 5.4%. Increased age (RR 1.06, 95% CI 1.01-1.12), shock index ≥ 1 (RR 4.82, 95% CI 1.45-16.09), and delay ≥ 24 h from presentation to operative intervention (RR 11.24, 95% CI 1.55-81.34) resulted in an increase in relative risk of mortality. CONCLUSION Non-reducible inguinal hernias largely affect young male farmers in Malawi. Delays to care can limit economic productivity for this rural population, as well as, yield considerable risk of mortality. While specific patient and institutional factors must be further elucidated, increased awareness, public health prioritization, and surgical capacity building is needed to reduce further hernia-related morbidity and mortality.
Collapse
Affiliation(s)
- B M Williams
- Department of Surgery, University of North Carolina, Chapel Hill, NC, 27599, USA
| | - L N Purcell
- Department of Surgery, University of North Carolina, Chapel Hill, NC, 27599, USA
| | - C Varela
- Department of Surgery, Kamuzu Central Hospital, Lilongwe, Malawi
| | - J Gallaher
- Department of Surgery, University of North Carolina, Chapel Hill, NC, 27599, USA
| | - A Charles
- Department of Surgery, University of North Carolina, Chapel Hill, NC, 27599, USA.
- Department of Surgery, Kamuzu Central Hospital, Lilongwe, Malawi.
- UNC School of Medicine, 4008 Burnett Womack Building, CB 7228, Chapel Hill, USA.
| |
Collapse
|
22
|
Alvarez RM, García AB, Riesco-Fagundo C, Martín JI, Varela C, Rodríguez Hergueta A, González Cantalapiedra E, Oyarzabal J, Di Geronimo B, Lorenzo M, Albarrán MI, Cebriá A, Cebrián D, Martínez-González S, Blanco-Aparicio C, Pastor J. Corrigendum to <' Omipalisib inspired macrocycles as dual PI3K/mTOR inhibitors' [Eur. J. Med. Chem. 211 (2021), 113109]. Eur J Med Chem 2021; 224:113703. [PMID: 34284231 DOI: 10.1016/j.ejmech.2021.113703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Rosa M Alvarez
- Experimental Therapeutics Programme, Spanish National Cancer Research Centre (CNIO), C/ Melchor Fernández Almagro 3, E-28029, Madrid, Spain
| | - Ana Belén García
- Experimental Therapeutics Programme, Spanish National Cancer Research Centre (CNIO), C/ Melchor Fernández Almagro 3, E-28029, Madrid, Spain
| | - Concepción Riesco-Fagundo
- Experimental Therapeutics Programme, Spanish National Cancer Research Centre (CNIO), C/ Melchor Fernández Almagro 3, E-28029, Madrid, Spain
| | - José I Martín
- Experimental Therapeutics Programme, Spanish National Cancer Research Centre (CNIO), C/ Melchor Fernández Almagro 3, E-28029, Madrid, Spain
| | - Carmen Varela
- Experimental Therapeutics Programme, Spanish National Cancer Research Centre (CNIO), C/ Melchor Fernández Almagro 3, E-28029, Madrid, Spain
| | - Antonio Rodríguez Hergueta
- Experimental Therapeutics Programme, Spanish National Cancer Research Centre (CNIO), C/ Melchor Fernández Almagro 3, E-28029, Madrid, Spain
| | - Esther González Cantalapiedra
- Experimental Therapeutics Programme, Spanish National Cancer Research Centre (CNIO), C/ Melchor Fernández Almagro 3, E-28029, Madrid, Spain
| | - Julen Oyarzabal
- Experimental Therapeutics Programme, Spanish National Cancer Research Centre (CNIO), C/ Melchor Fernández Almagro 3, E-28029, Madrid, Spain
| | - Bruno Di Geronimo
- Experimental Therapeutics Programme, Spanish National Cancer Research Centre (CNIO), C/ Melchor Fernández Almagro 3, E-28029, Madrid, Spain
| | - Milagros Lorenzo
- Experimental Therapeutics Programme, Spanish National Cancer Research Centre (CNIO), C/ Melchor Fernández Almagro 3, E-28029, Madrid, Spain
| | - M Isabel Albarrán
- Experimental Therapeutics Programme, Spanish National Cancer Research Centre (CNIO), C/ Melchor Fernández Almagro 3, E-28029, Madrid, Spain
| | - Antonio Cebriá
- Experimental Therapeutics Programme, Spanish National Cancer Research Centre (CNIO), C/ Melchor Fernández Almagro 3, E-28029, Madrid, Spain
| | - David Cebrián
- Experimental Therapeutics Programme, Spanish National Cancer Research Centre (CNIO), C/ Melchor Fernández Almagro 3, E-28029, Madrid, Spain
| | - Sonia Martínez-González
- Experimental Therapeutics Programme, Spanish National Cancer Research Centre (CNIO), C/ Melchor Fernández Almagro 3, E-28029, Madrid, Spain
| | - Carmen Blanco-Aparicio
- Experimental Therapeutics Programme, Spanish National Cancer Research Centre (CNIO), C/ Melchor Fernández Almagro 3, E-28029, Madrid, Spain
| | - Joaquín Pastor
- Experimental Therapeutics Programme, Spanish National Cancer Research Centre (CNIO), C/ Melchor Fernández Almagro 3, E-28029, Madrid, Spain.
| |
Collapse
|
23
|
Verdugo J, Mena A, Cavada G, Silva C, Ramos C, Varela C, Diaz J, Alegria J. Correlation Between Non-contrast Chest CT Findings And Clinical Outcomes In Hospitalized Patients With Covid-19 Pneumonia With Positive PCR For SARS-Cov-2 During The First Wave. J Cardiovasc Comput Tomogr 2021. [PMCID: PMC8280283 DOI: 10.1016/j.jcct.2021.06.233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
24
|
Varela C, Oda-Montecinos C, Andrés A, Saldaña C. Effectiveness of web-based feedback interventions for people with overweight and obesity: systematic review and network meta-analysis of randomized controlled trials. J Eat Disord 2021; 9:75. [PMID: 34174949 PMCID: PMC8234624 DOI: 10.1186/s40337-021-00432-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Accepted: 06/10/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Web-based delivered interventions have become an innovative option to treat health problems, like obesity. The aim of this systematic review and network meta-analysis was to analyze the effectiveness of web-based behavioral treatments for adults with overweight and obesity. Web-based interventions and comparison interventions (traditional weight control programs) were classified according to the following feedback characteristics: frequency, personalization, and provider (human versus machine). METHOD From the initial 1789 studies, 15 were included in this review. A network meta-analysis was conducted to analyze the efficacy of web-based programs with traditional interventions, considering direct and indirect comparisons. The main outcome was the weight loss mean difference (kg) between baseline and post-treatment. Heterogeneity and consistency assumptions were validated to conduct the network meta-analysis. RESULTS Network meta-analysis showed comparisons between different treatment options. The main results were that Intensive Contact Web-based programs were more effective than wait-list (Mean Difference - 1.86 kg; 95% Confidence Interval: - 3.61, - 0.12). Moreover, Intensive Contact Web-based programs were more effective than the other web-based options and self-help traditional interventions. However, the only significant comparison was Intensive Contact Web-based programs versus Guided Self-Help Web-based programs (Mean Difference - 4.31 kg; 95% Confidence Interval: - 5,22, - 3,41). Intensive Contact Web-based programs were the most effective treatment option according the obtained results, achieving the first place in the ranking provided by the network meta-analysis with 98.5% of probabilities. CONCLUSIONS Intensive Contact Web-based interventions have obtained the first position in the ranking, proving the relevance of frequent, personalized, and professional feedback and their association with a better prognosis for people with overweight and obesity. These results provide relevant information to design more effective treatments for people with overweight and obesity, in a new format especially appropriate for the current situation.
Collapse
Affiliation(s)
- Carmen Varela
- Department of Clinical Psychology and Psychobiology, Section of Personality, Assessment and Treatment, Faculty of Psychology, University of Barcelona, Passeig Vall d'Hebrón, 171, P.C. 08035, Barcelona, Cataluña, Spain
| | | | - Ana Andrés
- Faculty of Psychology, Education and Sport Sciences, Blanquerna, Ramon Llull University, Barcelona, Spain
| | - Carmina Saldaña
- Department of Clinical Psychology and Psychobiology, Section of Personality, Assessment and Treatment, Faculty of Psychology, University of Barcelona, Passeig Vall d'Hebrón, 171, P.C. 08035, Barcelona, Cataluña, Spain.
- Institute of Neurosciences, University of Barcelona, Barcelona, Spain.
| |
Collapse
|
25
|
Monge S, Zamalloa PL, Moros MJS, Olaso OP, Miguel LGS, Varela C, Ariza SR, Torres MCV, Lucerón MDCO, Yuste PG, Crespo PS, Pozo JSD, Gullón P, Carrasco JM, Sánchez EVM, Bravo LR, Castañeda MP, Hermida MJP, Vidal XH, Gonzalez IH, Margolles M, Luna HV, Gómara ER, Martín JJP, López MDC, Fernández MJL, Lorusso N, Ubago AC, Perez AR, Marin VR, Alvarez JJC, Pérez DC, Anés AAG, Frontera M, Rodriguez PM, León EEÁ, Casañas MD, Perez MAL, Ágreda JPAPD, Gutierrez PN, Aguilar IR, Axpe JMA, Carril FG, Azcárraga PA, Soria FS, Rodríguez BS. Lifting COVID-19 mitigation measures in Spain (May-June 2020). Enferm Infecc Microbiol Clin 2021; 41:S0213-005X(21)00195-6. [PMID: 34274154 PMCID: PMC9791371 DOI: 10.1016/j.eimc.2021.05.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 05/19/2021] [Accepted: 05/25/2021] [Indexed: 01/11/2023]
Abstract
INTRODUCTION The state of alarm was declared in Spain due to the COVID-19 epidemic on March 14, 2020, and established population confinement measures. The objective is to describe the process of lifting these mitigation measures. METHODS The Plan for the Transition to a New Normality, approved on April 28, contained four sequential phases with progressive increase in socio-economic activities and population mobility. In parallel, a new strategy for early diagnosis, surveillance and control was implemented. A bilateral decision mechanism was established between the Spanish Government and the autonomous communities (AC), guided by a set of qualitative and quantitative indicators capturing the epidemiological situation and core capacities. The territorial units were established ad-hoc and could be from Basic Health Zones to entire AC. RESULTS The process run from May 4 to June 21, 2020. AC implemented plans for reinforcement of core capacities. Incidence decreased from a median (50% of territories) of 7.4 per 100,000 in 7 days at the beginning to 2.5 at the end. Median PCR testing increased from 53% to 89% of suspected cases and PCR total capacity from 4.5 to 9.8 per 1000 inhabitants weekly; positivity rate decreased from 3.5% to 1.8%. Median proportion of cases with traced contacts increased from 82% to 100%. CONCLUSION Systematic data collection, analysis, and interterritorial dialogue allowed adequate process control. The epidemiological situation improved but, mostly, the process entailed a great reinforcement of core response capacities nation-wide, under common criteria. Maintaining and further reinforcing capacities remained crucial for responding to future waves.
Collapse
Affiliation(s)
| | | | | | | | | | - Carmen Varela
- National Centre of Epidemiology, Instituto de Salud Carlos III, CIBER Epidemiología y Salud Pública, Madrid, Spain
| | | | | | | | | | | | | | - Pedro Gullón
- APLICA Investigación y Traslación Soc Coop Mad, Madrid, Spain
| | | | | | | | | | | | - Xurxo Hervada Vidal
- General Directorate of Public Health, Autonomous Community of Galicia, Spain
| | | | - Mario Margolles
- General Directorate of Public Health, Principality of Asturias, Spain
| | | | - Enrique Ramalle Gómara
- General Directorate of Public Health, Consumption and Care, Autonomous Community of La Rioja, Spain
| | | | | | | | - Nicola Lorusso
- General Directorate of Public Health and Pharmacy, Autonomous Community of Andalusia, Spain
| | - Alberto Carmona Ubago
- General Directorate of Public Health and Pharmacy, Autonomous Community of Andalusia, Spain
| | | | | | - Juan José Criado Alvarez
- Health Sciences Institute of Castile-La Mancha, Autonomous Community of Castile-La Mancha, Spain
| | | | - Atanasio A Góméz Anés
- General Directorate of Public Health and Consumption, Autonomous City of Melilla, Spain
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
26
|
Desai NV, Varela C. Distinct burst properties contribute to the functional diversity of thalamic nuclei. J Comp Neurol 2021; 529:3726-3750. [PMID: 33723858 PMCID: PMC8440663 DOI: 10.1002/cne.25141] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 03/10/2021] [Accepted: 03/12/2021] [Indexed: 12/21/2022]
Abstract
Thalamic neurons fire spikes in two modes, burst and tonic. The function of burst firing is unclear, but the evidence suggests that bursts are more effective at activating cortical cells, and that postinhibition rebound bursting contributes to thalamocortical oscillations during sleep. Bursts are considered stereotyped signals; however, there is limited evidence regarding how burst properties compare across thalamic nuclei of different functional or anatomical organization. Here, we used whole-cell patch clamp recordings and compartmental modeling to investigate the properties of bursts in six sensory thalamic nuclei, to study the mechanisms that can lead to different burst properties, and to assess the implications of different burst properties for thalamocortical transmission and oscillatory functions. We found that bursts in higher-order cells on average had higher number of spikes and longer latency to the first spike. Additionally, burst features in first-order neurons were determined by sensory modality. Shifting the voltage-dependence and density of the T-channel conductance in a compartmental model replicates the burst properties from the intracellular recordings, pointing to molecular mechanisms that can generate burst diversity. Furthermore, the model predicts that bursts with higher number of spikes will drastically reduce the effectiveness of thalamocortical transmission. In addition, the latency to burst limited the rebound oscillatory frequency in modeled cells. These results demonstrate that burst properties vary according to the thalamocortical hierarchy and with sensory modality. The findings imply that, while in burst mode, thalamocortical transmission and firing frequency will be determined by the number of spikes and latency to burst.
Collapse
Affiliation(s)
- Nidhi Vasant Desai
- Psychology Department, Jupiter Life Sciences Initiative, Florida Atlantic University, Boca Raton, Florida, USA
| | - Carmen Varela
- Psychology Department, Jupiter Life Sciences Initiative, Florida Atlantic University, Boca Raton, Florida, USA
| |
Collapse
|
27
|
Bravo V, Katz A, Porte L, Weitzel T, Varela C, Gonzalez-Escalona N, Blondel CJ. Genomic analysis of the diversity, antimicrobial resistance and virulence potential of clinical Campylobacter jejuni and Campylobacter coli strains from Chile. PLoS Negl Trop Dis 2021; 15:e0009207. [PMID: 33606689 PMCID: PMC7928456 DOI: 10.1371/journal.pntd.0009207] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 03/03/2021] [Accepted: 02/05/2021] [Indexed: 11/16/2022] Open
Abstract
Campylobacter jejuni and Campylobacter coli are the leading cause of human gastroenteritis in the industrialized world and an emerging threat in developing countries. The incidence of campylobacteriosis in South America is greatly underestimated, mostly due to the lack of adequate diagnostic methods. Accordingly, there is limited genomic and epidemiological data from this region. In the present study, we performed a genome-wide analysis of the genetic diversity, virulence, and antimicrobial resistance of the largest collection of clinical C. jejuni and C. coli strains from Chile available to date (n = 81), collected in 2017–2019 in Santiago, Chile. This culture collection accounts for more than one third of the available genome sequences from South American clinical strains. cgMLST analysis identified high genetic diversity as well as 13 novel STs and alleles in both C. jejuni and C. coli. Pangenome and virulome analyses showed a differential distribution of virulence factors, including both plasmid and chromosomally encoded T6SSs and T4SSs. Resistome analysis predicted widespread resistance to fluoroquinolones, but low rates of erythromycin resistance. This study provides valuable genomic and epidemiological data and highlights the need for further genomic epidemiology studies in Chile and other South American countries to better understand molecular epidemiology and antimicrobial resistance of this emerging intestinal pathogen. Campylobacter is the leading cause of bacterial gastroenteritis worldwide and an emerging and neglected pathogen in South America. In this study, we performed an in-depth analysis of the genome sequences of 69 C. jejuni and 12 C. coli clinical strains isolated from Chile, which account for over a third of the sequences from clinical strains available from South America. We identified a high genetic diversity among C. jejuni strains and the unexpected identification of clade 3 C. coli strains, which are infrequently isolated from humans in other regions of the world. Most strains harbored the virulence factors described for Campylobacter. While ~40% of strains harbored mutation in the gyrA gene described to confer fluoroquinolone resistance, very few strains encoded the determinants linked to macrolide resistance, currently used for the treatment of campylobacteriosis. Our study contributes to our knowledge of this important foodborne pathogen providing valuable data from South America.
Collapse
Affiliation(s)
- Veronica Bravo
- Programa Centro de Investigacion Biomedica y Aplicada, (CIBAP), Escuela de Medicina, Facultad de Ciencias Medicas, Universidad de Santiago de Chile, Santiago, Chile
- Instituto de Ciencias Biomedicas, Facultad de Medicina y Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago, Chile
| | - Assaf Katz
- Programa de Biologia Celular y Molecular, ICBM, Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Lorena Porte
- Laboratorio Clinico, Clinica Alemana de Santiago, Facultad de Medicina Clinica Alemana, Universidad del Desarrollo, Santiago, Chile
| | - Thomas Weitzel
- Laboratorio Clinico, Clinica Alemana de Santiago, Facultad de Medicina Clinica Alemana, Universidad del Desarrollo, Santiago, Chile
- Instituto de Ciencias e Innovacion en Medicina (ICIM), Facultad de Medicina Clinica Alemana, Universidad del Desarrollo, Santiago, Chile
| | - Carmen Varela
- Laboratorio Clinico, Clinica Alemana de Santiago, Facultad de Medicina Clinica Alemana, Universidad del Desarrollo, Santiago, Chile
| | - Narjol Gonzalez-Escalona
- Center for Food Safety and Applied Nutrition, Office of Regulatory Science, Division of Microbiology, U.S. Food and Drug Administration, College Park, Maryland, United States of America
| | - Carlos J. Blondel
- Instituto de Ciencias Biomedicas, Facultad de Medicina y Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago, Chile
- * E-mail:
| |
Collapse
|
28
|
Álvarez RM, García AB, Riesco-Fagundo C, Martín JI, Varela C, Rodríguez Hergueta A, González Cantalapiedra E, Oyarzabal J, Di Geronimo B, Lorenzo M, Albarrán MI, Cebriá A, Cebrián D, Martínez-González S, Blanco-Aparicio C, Pastor J. Omipalisib inspired macrocycles as dual PI3K/mTOR inhibitors. Eur J Med Chem 2020; 211:113109. [PMID: 33360802 DOI: 10.1016/j.ejmech.2020.113109] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 11/25/2020] [Accepted: 12/13/2020] [Indexed: 02/08/2023]
Abstract
Activation of the phosphatidylinositol 3-kinase (PI3K)/mammalian target of rapamycin (mTOR) signaling pathway occurs frequently in a wide range of human cancers and is a main driver of cell growth, proliferation, survival, and chemoresistance of cancer cells. Compounds targeting this pathway are under active development as anticancer therapeutics and some of them have reached advanced clinical trials or been approved by the FDA. Dual PI3K/mTOR inhibitors combine multiple therapeutic efficacies in a single molecule by inhibiting the pathway both upstream and downstream of AKT. Herein, we report our efforts on the exploration of novel small molecule macrocycles (MCXs) as dual PI3K/mTOR inhibitors. Macrocyclization is an attractive approach used in drug discovery, as the semi-rigid character of these structures could provide improved potency, selectivity and favorable pharmacokinetic properties. Importantly, this strategy allows access to new chemical space thus obtaining a better intellectual property position. A series of MCXs based on GSK-2126458, a known clinical PI3K/mTOR inhibitor is described. These molecules showed potent biochemical and cellular dual PI3K/mTOR inhibition, demonstrated strong antitumoral effects in human cancer cell lines, and displayed good drug-like properties. Among them, MCX 83 presented remarkable selectivity against a panel of 468 kinases, high in vitro metabolic stability, and favorable pharmacokinetic parameters without significant CYP450 and h-ERG binding inhibition. This profile qualified this compound as a suitable candidate for future in vivo PK-PD and efficacy studies in mouse cancer models.
Collapse
Affiliation(s)
- Rosa M Álvarez
- Experimental Therapeutics Programme, Spanish National Cancer Research Centre (CNIO), C/ Melchor Fernández Almagro 3, E-28029, Madrid, Spain
| | - Ana Belén García
- Experimental Therapeutics Programme, Spanish National Cancer Research Centre (CNIO), C/ Melchor Fernández Almagro 3, E-28029, Madrid, Spain
| | - Concepción Riesco-Fagundo
- Experimental Therapeutics Programme, Spanish National Cancer Research Centre (CNIO), C/ Melchor Fernández Almagro 3, E-28029, Madrid, Spain
| | - José I Martín
- Experimental Therapeutics Programme, Spanish National Cancer Research Centre (CNIO), C/ Melchor Fernández Almagro 3, E-28029, Madrid, Spain
| | - Carmen Varela
- Experimental Therapeutics Programme, Spanish National Cancer Research Centre (CNIO), C/ Melchor Fernández Almagro 3, E-28029, Madrid, Spain
| | - Antonio Rodríguez Hergueta
- Experimental Therapeutics Programme, Spanish National Cancer Research Centre (CNIO), C/ Melchor Fernández Almagro 3, E-28029, Madrid, Spain
| | - Esther González Cantalapiedra
- Experimental Therapeutics Programme, Spanish National Cancer Research Centre (CNIO), C/ Melchor Fernández Almagro 3, E-28029, Madrid, Spain
| | - Julen Oyarzabal
- Experimental Therapeutics Programme, Spanish National Cancer Research Centre (CNIO), C/ Melchor Fernández Almagro 3, E-28029, Madrid, Spain
| | - Bruno Di Geronimo
- Experimental Therapeutics Programme, Spanish National Cancer Research Centre (CNIO), C/ Melchor Fernández Almagro 3, E-28029, Madrid, Spain
| | - Milagros Lorenzo
- Experimental Therapeutics Programme, Spanish National Cancer Research Centre (CNIO), C/ Melchor Fernández Almagro 3, E-28029, Madrid, Spain
| | - M Isabel Albarrán
- Experimental Therapeutics Programme, Spanish National Cancer Research Centre (CNIO), C/ Melchor Fernández Almagro 3, E-28029, Madrid, Spain
| | - Antonio Cebriá
- Experimental Therapeutics Programme, Spanish National Cancer Research Centre (CNIO), C/ Melchor Fernández Almagro 3, E-28029, Madrid, Spain
| | - David Cebrián
- Experimental Therapeutics Programme, Spanish National Cancer Research Centre (CNIO), C/ Melchor Fernández Almagro 3, E-28029, Madrid, Spain
| | - Sonia Martínez-González
- Experimental Therapeutics Programme, Spanish National Cancer Research Centre (CNIO), C/ Melchor Fernández Almagro 3, E-28029, Madrid, Spain
| | - Carmen Blanco-Aparicio
- Experimental Therapeutics Programme, Spanish National Cancer Research Centre (CNIO), C/ Melchor Fernández Almagro 3, E-28029, Madrid, Spain
| | - Joaquín Pastor
- Experimental Therapeutics Programme, Spanish National Cancer Research Centre (CNIO), C/ Melchor Fernández Almagro 3, E-28029, Madrid, Spain.
| |
Collapse
|
29
|
Martinuzzi A, Cascaron M, Maldonado N, Schulz J, Roel P, Ocampo R, Traverso M, Carcamo C, Nuñez M, Varela C, Betancurt C, Leiva S, Bogado M. Intestinal rehabilitation in type iii intestinal failure. The patagonian experiences. Clin Nutr ESPEN 2020. [DOI: 10.1016/j.clnesp.2020.09.321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
30
|
Varela C, Andrés A, Saldaña C. The behavioral pathway model to overweight and obesity: coping strategies, eating behaviors and body mass index. Eat Weight Disord 2020; 25:1277-1283. [PMID: 31376111 DOI: 10.1007/s40519-019-00760-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Accepted: 07/24/2019] [Indexed: 12/01/2022] Open
Abstract
PURPOSE Obese and overweight people deal with more daily problems and stressful situations than normal-weight individuals, for example, discrimination and bias. The aims of the present study were twofold: to identify differences between overweight and normal-weight people in coping strategies and eating behaviors, and to examine the relationship between coping strategies, eating behaviors and BMI. METHODS Sample of the present study consisted of 473 participants, 76.7% women (mean age = 32.7; SD = 11.4). Participants completed an ad hoc sociodemographic data questionnaire, the Coping Strategies Inventory, and the Dutch Eating Behavior Questionnaire. Welch's t test and X2 comparison analysis were used to identify differences in coping strategies and eating behaviors, according two BMI groups, normal weight and overweight. To analyze the relationship between coping strategies, eating behaviors and BMI, a structural equation modeling was conducted. RESULTS Overweight participants score significantly higher in passive coping strategies such as self-criticism, wishful thinking and social withdrawal, and unhealthy eating behaviors such as emotional eating and restrained eating. Structural equation modeling included these variables, coping strategies are more likely to conduct to unhealthy eating behaviors and these are more likely to promote and maintain a high BMI. The model showed an adequate data fit. CONCLUSIONS This research proposes a relationship between the variables analyzed. It has been proved that passive coping strategies predict a high BMI via unhealthy eating behaviors, especially emotional eating. These results are promising to improve the current prevention obesity programs and weight control treatments. LEVEL OF EVIDENCE Level III, case-control analytic study.
Collapse
Affiliation(s)
- Carmen Varela
- Department of Clinical Psychology and Psychobiology, Faculty of Psychology, University of Barcelona, Campus Mundet, Passeig Vall d'Hebron, 171, 08035, Barcelona, Spain.
| | - Ana Andrés
- Faculty of Psychology, Education Sciences and Sport, University Ramon Llull, Cister Street, 34, 08022, Barcelona, Spain
| | - Carmina Saldaña
- Department of Clinical Psychology and Psychobiology, Faculty of Psychology, University of Barcelona, Campus Mundet, Passeig Vall d'Hebron, 171, 08035, Barcelona, Spain
| |
Collapse
|
31
|
Varela C, Wilson MA. mPFC spindle cycles organize sparse thalamic activation and recently active CA1 cells during non-REM sleep. eLife 2020; 9:48881. [PMID: 32525480 PMCID: PMC7319772 DOI: 10.7554/elife.48881] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Accepted: 06/11/2020] [Indexed: 12/26/2022] Open
Abstract
Sleep oscillations in the neocortex and hippocampus are critical for the integration of new memories into stable generalized representations in neocortex. However, the role of the thalamus in this process is poorly understood. To determine the thalamic contribution to non-REM oscillations (sharp-wave ripples, SWRs; slow/delta; spindles), we recorded units and local field potentials (LFPs) simultaneously in the limbic thalamus, mPFC, and CA1 in rats. We report that the cycles of neocortical spindles provide a key temporal window that coordinates CA1 SWRs with sparse but consistent activation of thalamic units. Thalamic units were phase-locked to delta and spindles in mPFC, and fired at consistent lags with other thalamic units within spindles, while CA1 units that were active during spatial exploration were engaged in SWR-coupled spindles after behavior. The sparse thalamic firing could promote an incremental integration of recently acquired memory traces into neocortical schemas through the interleaved activation of thalamocortical cells.
Collapse
Affiliation(s)
- Carmen Varela
- Massachusetts Institute of Technology, Cambridge, United States.,Florida Atlantic University, Boca Raton, United States
| | | |
Collapse
|
32
|
Hernando V, Magistris A, Nicolau A, Ramón S, Varela C, Ruiz-Algueró M, Diaz A. Letter to the editor: Strengthening epidemiological surveillance of Neisseria gonorrhoea - beyond the detection of cases. ACTA ACUST UNITED AC 2020; 24. [PMID: 31241038 PMCID: PMC6593903 DOI: 10.2807/1560-7917.es.2019.24.25.1900355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- Victoria Hernando
- HIV Surveillance and Behavioral Monitoring Unit, National Center of Epidemiology, Carlos III Institute of Health, Madrid, Spain
| | - Alicia Magistris
- Epidemiology Unit, Insular Center Ibiza-Formentera, Consejería de Salud, Balearic Islands, Spain
| | - Antonio Nicolau
- Epidemiology Service, Consejería de Salud, Balearic Islands, Spain
| | - Susana Ramón
- Microbiology Laboratory, Can Misses Hospital, IBSALUT, Ibiza, Balearic Islands, Spain
| | - Carmen Varela
- HIV Surveillance and Behavioral Monitoring Unit, National Center of Epidemiology, Carlos III Institute of Health, Madrid, Spain
| | - Marta Ruiz-Algueró
- HIV Surveillance and Behavioral Monitoring Unit, National Center of Epidemiology, Carlos III Institute of Health, Madrid, Spain
| | - Asunción Diaz
- HIV Surveillance and Behavioral Monitoring Unit, National Center of Epidemiology, Carlos III Institute of Health, Madrid, Spain
| |
Collapse
|
33
|
Varela C, Saldaña C. En_Línea. An online treatment to change lifestyle in overweight and obesity: study protocol for a randomized controlled trial. BMC Public Health 2019; 19:1552. [PMID: 31752815 PMCID: PMC6873678 DOI: 10.1186/s12889-019-7928-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [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: 09/30/2019] [Accepted: 11/08/2019] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Obesity has become a major public health problem. Innovative treatments are necessary. Internet and new technologies have been reported effective results in weight control programs, especially those with personalized feedback. This paper presents the protocol for a randomized controlled trial to test the effectiveness of an online weight control program, called en_línea, comparing with a standard group therapy and a control group. METHODS This is a randomized controlled trial with three intervention arms: en_línea, standard group therapy and control group. To perform this study, 305 adults (18-65 years) with overweight type II (27-29.9 kg/m2) or obesity type I (30-34.9 kg/m2) will be invited to participate. Interventions will last 17 weeks with follow-ups 1, 3, 6 and 12 months after the post-treatment appointment. The primary outcome will be post-treatment weight loss and the maintenance during the follow-ups. Secondary outcomes will be adherence rates, drop outs and quality of life. Participants will be assessed before randomization and they will be sign an inform consent. DISCUSSION The future challenge is to design innovative obesity treatments. Internet could be a useful tool to improve traditional weight control programs. This new intervention format is appropriate for patients who prefer not to share their intimate problems with a group, and for the new generations who feel comfortable using new technologies. Besides, Internet allows reaching a large amount of people at the same time, even if they live far away. TRIAL REGISTRATION ClinicalTrials.gov NCT04127201. Retrospectively registered 15th October 2019.
Collapse
Affiliation(s)
- Carmen Varela
- Department of Clinical Psychology and Psychobiology, Faculty of Psychology, University of Barcelona, Passeig Vall d’Hebrón, 171 P.C, 08035 Barcelona, Spain
| | - Carmina Saldaña
- Department of Clinical Psychology and Psychobiology, Faculty of Psychology, University of Barcelona, Passeig Vall d’Hebrón, 171 P.C, 08035 Barcelona, Spain
- Institut de Neurociències, University of Barcelona, Passeig de la Vall d’Hebron, 171 P.C, 08035 Barcelona, Spain
| |
Collapse
|
34
|
Levican A, Ramos-Tapia I, Briceño I, Guerra F, Mena B, Varela C, Porte L. Genomic Analysis of Chilean Strains of Campylobacter jejuni from Human Faeces. Biomed Res Int 2019; 2019:1902732. [PMID: 31360704 PMCID: PMC6644508 DOI: 10.1155/2019/1902732] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Accepted: 06/17/2019] [Indexed: 02/06/2023]
Abstract
Campylobacter spp., especially C. jejuni, are recognized worldwide as the bacterial species that most commonly cause food-related diarrhea. C. jejuni possesses many different virulence factors, has the ability to survive in different reservoirs, and has shown among isolates the emergence of Antimicrobial Resistance (AMR). Genome association analyses of this bacterial pathogen have contributed to a better understanding of its pathogenic and AMR associated determinants. However, the epidemiological information of these bacteria in Latin American countries is scarce and no genomic information is available in public databases from isolates in these countries. Considering this, the present study is aimed to describe the genomic traits from representative Campylobacter spp. strains recovered from faecal samples of patients with acute diarrhoea from Valparaíso, Chile. Campylobacter spp. was detected from the faeces of 28 (8%) out of 350 patients with acute diarrhoea, mainly from young adults and children, and 26 (93%) of the isolates corresponded to C. jejuni. 63% of the isolates were resistant to ciprofloxacin, 25.9% to tetracycline, and 3.5% to erythromycin. Three isolates were selected for WGS on the basis of their flaA-RFLP genotype. They belonged to the multilocus sequence typing (MLST) clonal clomplex (CC) 21(PUCV-1), CC-48 (PUCV-3), and CC-353 (PUCV-2) and presented several putative virulence genes, including the Type IV and Type VI Secretion Systems, as well as AMR-associated genes in agreement with their susceptibility pattern. On the basis of the wgMLST, they were linked to strains from poultry and ruminants. These are the first genomes of Chilean C. jejuni isolates available in public databases and they provide relevant information about the C. jejuni isolates associated with human infection in this country.
Collapse
Affiliation(s)
- Arturo Levican
- Tecnología Médica, Facultad de Ciencias, Pontificia Universidad Católica de Valparaíso, Avenida Universidad 330, 2373223 Valparaíso, Chile
| | - Ignacio Ramos-Tapia
- Center for Bioinformatics and Integrative Biology (CBIB), Facultad de Ciencias de la Vida, Universidad Andres Bello, Avenida Republica 330, Santiago, Chile
| | - Isabel Briceño
- Laboratorio Clínico, Hospital Naval Almirante Nef, Viña del Mar, Chile
| | - Francisco Guerra
- Laboratorio Clínico, Hospital Naval Almirante Nef, Viña del Mar, Chile
| | - Benjamin Mena
- Laboratorio Clínico, Hospital Naval Almirante Nef, Viña del Mar, Chile
| | - Carmen Varela
- Laboratorio Clínico, Clínica Alemana de Santiago, Facultad de Medicina Clínica Alemana, Universidad del Desarrollo, Santiago, Chile
| | - Lorena Porte
- Laboratorio Clínico, Clínica Alemana de Santiago, Facultad de Medicina Clínica Alemana, Universidad del Desarrollo, Santiago, Chile
| |
Collapse
|
35
|
Coon WG, Valderrama M, Varela C, Amaya V, Henao D, Stickgold R, Wilson M, Manoach D. 0100 Human Sleep Spindles Coupled To Hippocampal Sharp Wave Ripples Have Characteristic EEG Features. Sleep 2019. [DOI: 10.1093/sleep/zsz067.099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- William G Coon
- Massachusetts General Hospital, Charlestown, MA, USA
- Harvard Medical School, Boston, MA, USA
- A.A. Martinos Center for Biomedical Imaging, Charlestown, MA, USA
| | | | - Carmen Varela
- Florida Atlantic University, Boca Raton, FL, USA
- Massachusetts Institute of Technology, Boston, MA, USA
| | | | | | - Robert Stickgold
- Beth Israel Deaconess Medical Center, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
| | | | - Dara Manoach
- Massachusetts General Hospital, Charlestown, MA, USA
- Harvard Medical School, Boston, MA, USA
- A.A. Martinos Center for Biomedical Imaging, Charlestown, MA, USA
| |
Collapse
|
36
|
Porte L, Valdivieso F, Wilmes D, Gaete P, Díaz MC, Thompson L, Munita JM, Alliende R, Varela C, Rickerts V, Weitzel T. Laboratory exposure to Coccidioides: lessons learnt in a non-endemic country. J Hosp Infect 2019; 102:461-464. [PMID: 30885815 DOI: 10.1016/j.jhin.2019.03.006] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Accepted: 03/11/2019] [Indexed: 01/27/2023]
Abstract
Coccidioides is a primary pathogenic fungus, which infects humans through highly infectious arthroconidia, causing substantial morbidity including life-threatening disseminated infections. Due to the low infectious dose, laboratory personnel might become infected during diagnostic procedures. Accordingly, coccidioidomycosis is reported as the most frequent laboratory-acquired systemic mycosis worldwide. This risk is aggravated in non-endemic countries, where the diagnosis may not be suspected. We report on an inadvertent exposure of 44 persons to Coccidioides posadasii in a clinical microbiology laboratory in Chile, the measures of containment after rapid diagnosis with matrix-assisted laser desorption/ionization time-of-flight mass spectrometry, and the lessons learnt in a non-endemic setting.
Collapse
Affiliation(s)
- L Porte
- Laboratorio Clínico, Clínica Alemana de Santiago, Facultad de Medicina Clínica Alemana, Universidad del Desarrollo, Santiago, Chile.
| | - F Valdivieso
- Programa Medicina del Viajero, Clínica Alemana de Santiago, Facultad de Medicina Clínica Alemana, Universidad del Desarrollo, Santiago, Chile; Laboratorio de Microbiología, Hospital Luis Calvo Mackenna, Santiago, Chile
| | - D Wilmes
- Mycology Section, FG 16, Robert-Koch Institute, Berlin, Germany
| | - P Gaete
- Comite IAAS, Clínica Alemana de Santiago, Facultad de Medicina Clínica Alemana, Universidad del Desarrollo, Santiago
| | - M C Díaz
- Programa de Microbiologia y Micologia, ICBM, Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - L Thompson
- Servicio de Infectología, Departamento de Medicina Interna, Clínica Alemana, Facultad de Medicina Clínica Alemana, Universidad del Desarrollo, Santiago, Chile
| | - J M Munita
- Servicio de Infectología, Departamento de Medicina Interna, Clínica Alemana, Facultad de Medicina Clínica Alemana, Universidad del Desarrollo, Santiago, Chile; Genómica & Resistencia Microbiana, Instituto de Ciencias e Innovación en Medicina (ICIM), Facultad de Medicina Clínica Alemana, Universidad del Desarrollo, Chile; Millennium Initiative for Collaborative Research on Bacterial Resistance (MICROB-R)
| | - R Alliende
- Laboratorio Clínico, Clínica Alemana de Santiago, Facultad de Medicina Clínica Alemana, Universidad del Desarrollo, Santiago, Chile
| | - C Varela
- Laboratorio Clínico, Clínica Alemana de Santiago, Facultad de Medicina Clínica Alemana, Universidad del Desarrollo, Santiago, Chile
| | - V Rickerts
- Mycology Section, FG 16, Robert-Koch Institute, Berlin, Germany
| | - T Weitzel
- Laboratorio Clínico, Clínica Alemana de Santiago, Facultad de Medicina Clínica Alemana, Universidad del Desarrollo, Santiago, Chile; Programa Medicina del Viajero, Clínica Alemana de Santiago, Facultad de Medicina Clínica Alemana, Universidad del Desarrollo, Santiago, Chile
| |
Collapse
|
37
|
Ndumbi P, Freidl GS, Williams CJ, Mårdh O, Varela C, Avellón A, Friesema I, Vennema H, Beebeejaun K, Ngui SL, Edelstein M, Smith-Palmer A, Murphy N, Dean J, Faber M, Wenzel J, Kontio M, Müller L, Midgley SE, Sundqvist L, Ederth JL, Roque-Afonso AM, Couturier E, Klamer S, Rebolledo J, Suin V, Aberle SW, Schmid D, De Sousa R, Augusto GF, Alfonsi V, Del Manso M, Ciccaglione AR, Mellou K, Hadjichristodoulou C, Donachie A, Borg ML, Sočan M, Poljak M, Severi E. Hepatitis A outbreak disproportionately affecting men who have sex with men (MSM) in the European Union and European Economic Area, June 2016 to May 2017. Euro Surveill 2018; 23:1700641. [PMID: 30131095 PMCID: PMC6205254 DOI: 10.2807/1560-7917.es.2018.23.33.1700641] [Citation(s) in RCA: 105] [Impact Index Per Article: 17.5] [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: 09/17/2017] [Accepted: 03/07/2018] [Indexed: 01/30/2023] Open
Abstract
Between 1 June 2016 and 31 May 2017, 17 European Union (EU) and European Economic Area countries reported 4,096 cases associated with a multi-country hepatitis A (HA) outbreak. Molecular analysis identified three co-circulating hepatitis A virus (HAV) strains of genotype IA: VRD_521_2016, V16-25801 and RIVM-HAV16-090. We categorised cases as confirmed, probable or possible, according to the EU outbreak case definitions. Confirmed cases were infected with one of the three outbreak strains. We investigated case characteristics and strain-specific risk factors for transmission. A total of 1,400 (34%) cases were confirmed; VRD_521_2016 and RIVM-HAV16-090 accounted for 92% of these. Among confirmed cases with available epidemiological data, 92% (361/393) were unvaccinated, 43% (83/195) travelled to Spain during the incubation period and 84% (565/676) identified as men who have sex with men (MSM). Results depict an HA outbreak of multiple HAV strains, within a cross-European population, that was particularly driven by transmission between non-immune MSM engaging in high-risk sexual behaviour. The most effective preventive measure to curb this outbreak is HAV vaccination of MSM, supplemented by primary prevention campaigns that target the MSM population and promote protective sexual behaviour.
Collapse
Affiliation(s)
- Patricia Ndumbi
- European Programme for Intervention Epidemiology Training (EPIET)| European Centre for Disease Prevention and Control, Solna, Sweden
- Instituto de Salud Carlos III, CIBER Epidemiología y Salud Pública, Madrid, Spain
| | - Gudrun S Freidl
- European Programme for Intervention Epidemiology Training (EPIET)| European Centre for Disease Prevention and Control, Solna, Sweden
- National Institute for Public Health and the Environment (RIVM), Bilthoven, the Netherlands
| | - Christopher J Williams
- European Programme for Intervention Epidemiology Training (EPIET)| European Centre for Disease Prevention and Control, Solna, Sweden
- Public Health Wales, Cardiff, United Kingdom
| | - Otilia Mårdh
- European Centre for Disease Prevention and Control, Solna, Sweden
| | - Carmen Varela
- Instituto de Salud Carlos III, CIBER Epidemiología y Salud Pública, Madrid, Spain
| | - Ana Avellón
- Instituto de Salud Carlos III, CIBER Epidemiología y Salud Pública, Madrid, Spain
| | - Ingrid Friesema
- National Institute for Public Health and the Environment (RIVM), Bilthoven, the Netherlands
| | - Harry Vennema
- National Institute for Public Health and the Environment (RIVM), Bilthoven, the Netherlands
| | | | - Siew Lin Ngui
- Public Health England Colindale, London, United Kingdom
| | | | | | - Niamh Murphy
- Health Protection Surveillance Centre, Dublin, Ireland
| | - Jonathan Dean
- National Virus Reference Laboratory, Dublin, Ireland
| | | | | | - Mia Kontio
- National Institute for Health and Welfare (THL), Helsinki, Finland
| | | | | | | | | | - Anne-Marie Roque-Afonso
- Centre National de Référence Virus des hépatites à transmission entérique, Villejuif, France
| | | | | | | | | | | | - Daniela Schmid
- Austrian Agency of Health and Food Safety, Vienna, Austria
| | - Rita De Sousa
- National Institute of Health Dr Ricardo Jorge, Lisbon, Portugal
| | | | | | | | | | | | | | - Alastair Donachie
- European Programme for Intervention Epidemiology Training (EPIET)| European Centre for Disease Prevention and Control, Solna, Sweden
- Health Promotion and Disease Prevention Directorate, Msida, Malta
| | | | - Maja Sočan
- National Institute of Public Health, Ljubljana, Slovenia
| | | | - Ettore Severi
- Karolinska Institutet, Stockholm, Sweden
- European Centre for Disease Prevention and Control, Solna, Sweden
| |
Collapse
|
38
|
Gassowski M, Michaelis K, Wenzel JJ, Faber M, Figoni J, Mouna L, Friesema IH, Vennema H, Avellon A, Varela C, Sundqvist L, Lundberg Ederth J, Plunkett J, Balogun K, Ngui SL, Midgley SE, Gillesberg Lassen S, Müller L. Two concurrent outbreaks of hepatitis A highlight the risk of infection for non-immune travellers to Morocco, January to June 2018. Euro Surveill 2018; 23:1800329. [PMID: 29991381 PMCID: PMC6152161 DOI: 10.2807/1560-7917.es.2018.23.27.1800329] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Accepted: 07/05/2018] [Indexed: 12/02/2022] Open
Abstract
From January to June 2018, two ongoing hepatitis A outbreaks affected travellers returning from Morocco and cases in Europe without travel history, resulting in 163 patients in eight European countries. Most interviewed travel-related cases were unaware of the hepatitis A risk in Morocco. Molecular analysis revealed two distinct hepatitis A virus (HAV) strains (subgenotype IA DK2018_231; subgenotype IB V18-16428). Vaccination recommendations should be emphasised to increase awareness among non-immune travellers to Morocco and HAV-endemic countries.
Collapse
Affiliation(s)
- Martyna Gassowski
- These authors contributed equally to this work
- Department for Infectious Disease Epidemiology, Robert Koch Institute (RKI), Berlin, Germany
- Postgraduate Training for Applied Epidemiology (PAE, German Field Epidemiology Training Programme), Robert Koch Institute, Berlin, Germany
- European Programme for Intervention Epidemiology Training (EPIET), European Centre for Disease Prevention and Control (ECDC), Stockholm, Sweden
| | - Kai Michaelis
- These authors contributed equally to this work
- Department for Infectious Disease Epidemiology, Unit of Gastrointestinal Infections, Zoonoses, and Tropical Infections, Robert Koch Institute (RKI), Berlin, Germany
| | - Jürgen J Wenzel
- These authors contributed equally to this work
- National Consultant Laboratory for HAV and HEV, Institute of Clinical Microbiology and Hygiene, University Medical Centre Regensburg, Regensburg, Germany
| | - Mirko Faber
- Department for Infectious Disease Epidemiology, Unit of Gastrointestinal Infections, Zoonoses, and Tropical Infections, Robert Koch Institute (RKI), Berlin, Germany
| | - Julie Figoni
- Santé Publique France, French National Public Health Agency, Saint-Maurice, France
| | - Lina Mouna
- AP-HP, National Reference Centre for Enterically Transmitted Hepatitis Viruses, Paul Brousse hospital, Villejuif, France
| | - Ingrid Hm Friesema
- Centre for Infectious Diseases, Epidemiology and Surveillance, Centre for Infectious Disease Control, National Institute for Public Health and the Environment (RIVM), Bilthoven, the Netherlands
| | - Harry Vennema
- Centre for Infectious Diseases Research, Diagnostics and Screening, Centre for Infectious Disease Control, National Institute for Public Health and the Environment (RIVM), Bilthoven, the Netherlands
| | - Ana Avellon
- Hepatitis Unit, National Center of Microbiology, Instituto de Salud Carlos III, Madrid, Spain
| | - Carmen Varela
- National Centre of Epidemiology, Instituto de Salud Carlos III, CIBER Epidemiología y Salud Pública, Madrid, Spain
| | - Lena Sundqvist
- Department of Communicable Disease Control and Health Protection, the Public Health Agency of Sweden, Stockholm, Sweden
| | | | - James Plunkett
- National Infection Service, Public Health England, London, United Kingdom
| | - Koye Balogun
- National Infection Service, Public Health England, London, United Kingdom
| | - Siew Lin Ngui
- National Infection Service, Public Health England, London, United Kingdom
| | - Sofie Elisabeth Midgley
- Department of Virus & Microbiological Special Diagnostics, Statens Serum Institut, Copenhagen, Denmark
| | - Sofie Gillesberg Lassen
- Department of Infectious Disease Epidemiology and Prevention, Statens Serum Institut, Copenhagen, Denmark
| | - Luise Müller
- Department of Infectious Disease Epidemiology and Prevention, Statens Serum Institut, Copenhagen, Denmark
| |
Collapse
|
39
|
Baran E, Godoy A, Merino E, Benigni L, Gonzalez J, Pierini N, Copparoni G, Farah A, Zubillaga M, Rivera A, Ferranti S, Bocanegra R, Lorenzin A, Barrena E, Varela C, Gatti L, Goñi S. P159 Usefulness of extended oral glucose tolerance test in patients with cystic fibrosis older than 16 years. J Cyst Fibros 2018. [DOI: 10.1016/s1569-1993(18)30454-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
40
|
Penagos H, Varela C, Wilson MA. Oscillations, neural computations and learning during wake and sleep. Curr Opin Neurobiol 2018; 44:193-201. [PMID: 28570953 DOI: 10.1016/j.conb.2017.05.009] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2017] [Accepted: 05/11/2017] [Indexed: 12/21/2022]
Abstract
Learning and memory theories consider sleep and the reactivation of waking hippocampal neural patterns to be crucial for the long-term consolidation of memories. Here we propose that precisely coordinated representations across brain regions allow the inference and evaluation of causal relationships to train an internal generative model of the world. This training starts during wakefulness and strongly benefits from sleep because its recurring nested oscillations may reflect compositional operations that facilitate a hierarchical processing of information, potentially including behavioral policy evaluations. This suggests that an important function of sleep activity is to provide conditions conducive to general inference, prediction and insight, which contribute to a more robust internal model that underlies generalization and adaptive behavior.
Collapse
Affiliation(s)
- Hector Penagos
- Center for Brains, Minds and Machines, Picower Institute for Learning and Memory, Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Carmen Varela
- Center for Brains, Minds and Machines, Picower Institute for Learning and Memory, Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Matthew A Wilson
- Center for Brains, Minds and Machines, Picower Institute for Learning and Memory, Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, MA, USA.
| |
Collapse
|
41
|
Collado L, Muñoz N, Porte L, Ochoa S, Varela C, Muñoz I. Genetic diversity and clonal characteristics of ciprofloxacin-resistant Campylobacter jejuni isolated from Chilean patients with gastroenteritis. Infection, Genetics and Evolution 2018; 58:290-293. [DOI: 10.1016/j.meegid.2017.12.026] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Revised: 12/12/2017] [Accepted: 12/31/2017] [Indexed: 11/29/2022]
|
42
|
Gomez-Barroso D, Velasco E, Varela C, Leon I, Cano R. Spread of Ebola virus disease based on the density of roads in West Africa. Geospat Health 2017; 12:552. [PMID: 29239551 DOI: 10.4081/gh.2017.552] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Revised: 05/19/2017] [Accepted: 05/21/2017] [Indexed: 06/07/2023]
Abstract
On March 23rd 2014 the World Health Organization announced that a new Ebola outbreak had appeared in West Africa involving three countries. The objective of this study was to show how a road density index (RDI) could be constructed and a study of its association with Ebola cases during the outbreak. The study was carried out at the district level across the affected countries. RDI was calculated by km2 of territory as a proxy for the mobility of the population. To calculate this index, the number of km of road constructed in each district was estimated and subsequently divided by the area of each district expressed in km2. The accumulated incidence of Ebola was calculated per district. A generalised linear model with a Poisson distribution was used. The RDI varied from 0.12 to 0.84 between the districts. An RDI increase of 0.01 indicates a 3% increase in Ebola infection risk (RR is 1.03; CI 1.03-1.04). The density of the road network can influence the increased incidence of Ebola cases in the affected zone. An exhaustive mapping of the area could help the relevant organisations to manage another outbreak in the future and it could help the distribution of resources in an emergency situation.
Collapse
Affiliation(s)
- Diana Gomez-Barroso
- Biomedical Research Centre Network for Epidemiology and Public Health (CIBERESP), National Center for Epidemiology, Carlos III Institute of Health, Madrid.
| | | | | | | | | |
Collapse
|
43
|
Velasco E, Gomez-Barroso D, Varela C, Diaz O, Cano R. Non-imported malaria in non-endemic countries: a review of cases in Spain. Malar J 2017; 16:260. [PMID: 28662650 PMCID: PMC5492460 DOI: 10.1186/s12936-017-1915-8] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Accepted: 06/27/2017] [Indexed: 12/05/2022] Open
Abstract
Spain declared the elimination of malaria in 1964. In non-endemic areas, the overwhelming majority of malaria cases are acquired abroad, and locally acquired infections are rare events. In Spain, malaria is a statutorily notifiable disease. During these fifty years more than ten thousand malaria cases have been reported, and about 0.8% of them did not have a history of recent travel. In this report, it was carried out a review of the ways in which malaria can be transmitted in non-endemic areas and a short description of the Spanish cases, aggregated by their transmission mechanisms. Four cases contracted malaria by mosquito bites; there were two autochthonous cases and two of “airport malaria”. The other 28 cases were: congenital malaria cases, transfusion-transmitted malaria, post-transplant cases, nosocomial transmission and cases in intravenous drug users. In addition, in 1971 there was an outbreak of 54 cases due to exposure to blood or blood products. So, while malaria usually is an imported disease in non-endemic areas, it should not be excluded in the differential diagnosis of persons who have fever of unknown origin, regardless of their travel history.
Collapse
Affiliation(s)
- Emilia Velasco
- National Center for Epidemiology, Carlos III Institute of Health, Madrid, Spain
| | - Diana Gomez-Barroso
- National Center for Epidemiology, Carlos III Institute of Health, Madrid, Spain. .,Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), Madrid, Spain.
| | - Carmen Varela
- National Center for Epidemiology, Carlos III Institute of Health, Madrid, Spain.,Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), Madrid, Spain
| | - Oliva Diaz
- National Center for Epidemiology, Carlos III Institute of Health, Madrid, Spain
| | - Rosa Cano
- National Center for Epidemiology, Carlos III Institute of Health, Madrid, Spain.,Consortium for Biomedical Research in Epidemiology and Public Health (CIBERESP), Madrid, Spain
| |
Collapse
|
44
|
Gullón P, Varela C, Martínez EV, Gómez-Barroso D. Association between meteorological factors and hepatitis A in Spain 2010-2014. Environ Int 2017; 102:230-235. [PMID: 28325534 DOI: 10.1016/j.envint.2017.03.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [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: 12/02/2016] [Revised: 03/08/2017] [Accepted: 03/13/2017] [Indexed: 05/05/2023]
Abstract
BACKGROUND There is growing concern of how climate change could affect public health, due to the increase number of extreme climate events. Hence, the study of the role that climate events play on the distribution of waterborne diseases, like Hepatitis A, could be key for developing new prevention approaches. OBJECTIVE To investigate the association between climate factors and Hepatitis A in Spain between 2010 and 2014. METHODS Weekly Hepatitis A cases between 2010 and 2014 were obtained from the Spanish Epidemiology Surveillance Network. Climate variables (weekly cumulative rainfall, rainy days, storm days and snow days) were obtained from National Climatic Data Center (NOAA satellite and information Service of USA). Each municipality was assigned to the nearest weather station (N=73). A Mixed-Effects Poisson regression was performed to estimate Incidence Rate Ratios (IRR), including a time lag of 2, 3 and 4weeks (most probable incubation period for Hepatitis A). RESULTS Rainfall higher than 90th percentile (extreme precipitation) was associated with increased number of Hepatitis A cases 2weeks (IRR=1.24 CI 95%=1.09-1.40) and 4weeks after the event (IRR=1.15 CI 95%=1.01-1.30). An extra rainy day increased the risk of Hepatitis A two weeks after (IRR=1.03 CI 95%=1.01-1.05). We found higher risk of Hepatitis A two weeks after each extra storm day (IRR=1.06 CI 95%=1.00-1.12), and lower risk with 3 and 4weeks' lag (IRR=0.93 CI 95%=0.88-0.99 for lag3; IRR=0.94 CI 95%=0.88-0.99 for lag 4). CONCLUSIONS There is an increased risk of Hepatitis A 2weeks after water-related climate events. Including meteorological information in surveillance systems might improve to develop early prevention strategies for waterborne diseases.
Collapse
Affiliation(s)
- Pedro Gullón
- National School of Public Health, Carlos III Institute of Health. Madrid, Spain; Social and Cardiovascular Epidemiology Research Group, School of Medicine, University of Alcalá, Alcalá de Henares, Madrid, Spain.
| | - Carmen Varela
- National Centre for Epidemiology, Carlos III Institute of Health, Madrid, Spain; CIBER en Epidemiología y Salud Pública (CIBERESP), Spain
| | - Elena Vanessa Martínez
- National Centre for Epidemiology, Carlos III Institute of Health, Madrid, Spain; CIBER en Epidemiología y Salud Pública (CIBERESP), Spain
| | - Diana Gómez-Barroso
- National Centre for Epidemiology, Carlos III Institute of Health, Madrid, Spain; CIBER en Epidemiología y Salud Pública (CIBERESP), Spain
| |
Collapse
|
45
|
Varela C, Barker A, Tran T, Borneman A, Curtin C. Sensory profile and volatile aroma composition of reduced alcohol Merlot wines fermented with Metschnikowia pulcherrima and Saccharomyces uvarum. Int J Food Microbiol 2017; 252:1-9. [PMID: 28436828 DOI: 10.1016/j.ijfoodmicro.2017.04.002] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Revised: 04/11/2017] [Accepted: 04/11/2017] [Indexed: 12/23/2022]
Abstract
Strategies for production of wines containing lower alcohol concentrations are in strong demand, for reasons of quality, health, and taxation. Development and application of wine yeasts that are less efficient at transforming grape sugars into ethanol has the potential to allow winemakers the freedom to make lower alcohol wines from grapes harvested at optimal ripeness, without the need for post-fermentation processes aimed at removing ethanol. We have recently shown that two non-conventional wine yeast species Metschnikowia pulcherrima and Saccharomyces uvarum were both able to produce wine with reduced alcohol concentration. Both species produced laboratory-scale wines with markedly different volatile aroma compound composition relative to Saccharomyces cerevisiae. This work describes the volatile composition and sensory profiles of reduced-alcohol pilot-scale Merlot wines produced with M. pulcherrima and S. uvarum. Wines fermented with M. pulcherrima contained 1.0% v/v less ethanol than S. cerevisiae fermented wines, while those fermented with S. uvarum showed a 1.7% v/v reduction in ethanol. Compared to S. cerevisiae ferments, wines produced with M. pulcherrima showed higher concentrations of ethyl acetate, total esters, total higher alcohols and total sulfur compounds, while wines fermented with S. uvarum were characterised by the highest total concentration of higher alcohols. Sensorially, M. pulcherrima wines received relatively high scores for sensory descriptors such as red fruit and fruit flavour and overall exhibited a sensory profile similar to that of wine made with S. cerevisiae, whereas the main sensory descriptors associated with wines fermented with S. uvarum were barnyard and meat. This work demonstrates the successful application of M. pulcherrima AWRI3050 for the production of pilot-scale red wines with reduced alcohol concentration and highlights the need for rigorous evaluation of non-conventional yeasts with regard to their sensory impacts.
Collapse
Affiliation(s)
- C Varela
- The Australian Wine Research Institute, PO Box 197, Glen Osmond, Adelaide, South Australia 5064, Australia.
| | - A Barker
- The Australian Wine Research Institute, PO Box 197, Glen Osmond, Adelaide, South Australia 5064, Australia
| | - T Tran
- The Australian Wine Research Institute, PO Box 197, Glen Osmond, Adelaide, South Australia 5064, Australia
| | - A Borneman
- The Australian Wine Research Institute, PO Box 197, Glen Osmond, Adelaide, South Australia 5064, Australia
| | - C Curtin
- The Australian Wine Research Institute, PO Box 197, Glen Osmond, Adelaide, South Australia 5064, Australia
| |
Collapse
|
46
|
Porte L, Gattini F, Varela C, Wettzel T. Evaluación de la susceptibilidad directa desde hemocultivos positivos utilizando el sistema Vitek 2: comparación de dos protocolos rápidos. Rev Chilena Infectol 2017. [DOI: 10.4067/s0716-10182017000200014] [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: 11/17/2022] Open
|
47
|
De Haro J, Bleda S, Varela C, Cañibano C, Acin F. Meta-analysis and adjusted indirect comparison of direct oral anticoagulants in prevention of acute limb ischemia in patients with atrial fibrillation. Curr Med Res Opin 2016; 32:1167-73. [PMID: 26949899 DOI: 10.1185/03007995.2016.1163256] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
BACKGROUND Direct oral anticoagulants are being presented as alternatives to warfarin for preventing stroke in patients with atrial fibrillation. Yet direct comparative trials between these agents in prevention of acute limb ischemia (ALI) are unavailable so far. OBJECTIVE To conduct an adjusted indirect comparison meta-analysis between direct oral agents for prevention of acute limb ischemia in atrial fibrillation. METHODS We conducted a systematic literature review searching electronic databases (MEDLINE and Embase) and the Cochrane Library from January 1990 through November 2014. Two blinded investigators reviewed all potentially relevant articles in a parallel manner by using a priori defined criteria. To assess the long-term efficacy and safety of these agents, only randomized clinical trials (RCTs) with follow-up durations of >1 year were included. The primary efficacy outcome was the end point of acute limb ischemia and/or extremity embolism. RESULTS A total of 44,563 patients from three RCTs met criteria for inclusion. Patients randomized to direct oral anticoagulants had a non-significant decreased risk for acute limb ischemia (risk ratio [RR]: 0.57, 95% confidence interval [CI]: 0.26-1.2). In the analysis between agents, however, rivaroxaban significantly lowered the risk of ALI compared to warfarin (RR: 0.23, 95% CI: 0.064-0.82), apixaban (RR: 0.26, 95% CI: 0.081-0.83), and dabigatran (RR: 0.24, 95% CI: 0.077-0.83). CONCLUSIONS Significant differences in prevention of acute limb ischemia may exist between oral anticoagulant agents in patients with atrial fibrillation. Rivaroxaban lowers the risk of limb embolism versus warfarin, apixaban and dabigatran.
Collapse
Affiliation(s)
- J De Haro
- a Angiology and Vascular Surgery Department , Getafe University Hospital , Getafe , Madrid , Spain
| | - S Bleda
- a Angiology and Vascular Surgery Department , Getafe University Hospital , Getafe , Madrid , Spain
| | - C Varela
- a Angiology and Vascular Surgery Department , Getafe University Hospital , Getafe , Madrid , Spain
| | - C Cañibano
- a Angiology and Vascular Surgery Department , Getafe University Hospital , Getafe , Madrid , Spain
| | - F Acin
- a Angiology and Vascular Surgery Department , Getafe University Hospital , Getafe , Madrid , Spain
| |
Collapse
|
48
|
Porte L, Varela C, Haecker T, Morales S, Weitzel T. Impact of changing from staining to culture techniques on detection rates of Campylobacter spp. in routine stool samples in Chile. BMC Infect Dis 2016; 16:196. [PMID: 27177918 PMCID: PMC4866023 DOI: 10.1186/s12879-016-1546-7] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2015] [Accepted: 05/05/2016] [Indexed: 12/26/2022] Open
Abstract
Background Campylobacter is a leading cause of bacterial gastroenteritis, but sensitive diagnostic methods such as culture are expensive and often not available in resource limited settings. Therefore, direct staining techniques have been developed as a practical and economical alternative. We analyzed the impact of replacing Campylobacter staining with culture for routine stool examinations in a private hospital in Chile. Methods From January to April 2014, a total of 750 consecutive stool samples were examined in parallel by Hucker stain and Campylobacter culture. Isolation rates of Campylobacter were determined and the performance of staining was evaluated against culture as the gold standard. Besides, isolation rates of Campylobacter and other enteric pathogens were compared to those of past years. Results Campylobacter was isolated by culture in 46 of 750 (6.1 %) stool samples. Direct staining only identified three samples as Campylobacter positive and reached sensitivity and specificity values of 6.5 and 100 %, respectively. In comparison to staining-based detection rates of previous years, we observed a significant increase of Campylobacter cases in our patients. Conclusion Direct staining technique for Campylobacter had a very low sensitivity compared to culture. Staining methods might lead to a high rate of false negative results and an underestimation of the importance of campylobacteriosis. With the inclusion of Campylobacter culture, this pathogen became a leading cause of intestinal infection in our patient population.
Collapse
Affiliation(s)
- Lorena Porte
- Laboratorio Clínico, Clínica Alemana de Santiago, Facultad de Medicina Clínica Alemana, Universidad del Desarrollo, Av. Vitacura 5951, Santiago, Chile.
| | - Carmen Varela
- Laboratorio Clínico, Clínica Alemana de Santiago, Facultad de Medicina Clínica Alemana, Universidad del Desarrollo, Av. Vitacura 5951, Santiago, Chile
| | - Thomas Haecker
- Laboratorio Clínico, Clínica Alemana de Santiago, Facultad de Medicina Clínica Alemana, Universidad del Desarrollo, Av. Vitacura 5951, Santiago, Chile
| | - Sara Morales
- Laboratorio Clínico, Clínica Alemana de Santiago, Facultad de Medicina Clínica Alemana, Universidad del Desarrollo, Av. Vitacura 5951, Santiago, Chile
| | - Thomas Weitzel
- Laboratorio Clínico, Clínica Alemana de Santiago, Facultad de Medicina Clínica Alemana, Universidad del Desarrollo, Av. Vitacura 5951, Santiago, Chile
| |
Collapse
|
49
|
Varela C, Weiss S, Meyer R, Halassa M, Biedenkapp J, Wilson MA, Goosens KA, Bendor D. Tracking the Time-Dependent Role of the Hippocampus in Memory Recall Using DREADDs. PLoS One 2016; 11:e0154374. [PMID: 27145133 PMCID: PMC4856306 DOI: 10.1371/journal.pone.0154374] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Accepted: 04/12/2016] [Indexed: 11/19/2022] Open
Abstract
The hippocampus is critical for the storage of new autobiographical experiences as memories. Following an initial encoding stage in the hippocampus, memories undergo a process of systems-level consolidation, which leads to greater stability through time and an increased reliance on neocortical areas for retrieval. The extent to which the retrieval of these consolidated memories still requires the hippocampus is unclear, as both spared and severely degraded remote memory recall have been reported following post-training hippocampal lesions. One difficulty in definitively addressing the role of the hippocampus in remote memory retrieval is the precision with which the entire volume of the hippocampal region can be inactivated. To address this issue, we used Designer Receptors Exclusively Activated by Designer Drugs (DREADDs), a chemical-genetic tool capable of highly specific neuronal manipulation over large volumes of brain tissue. We find that remote (>7 weeks after acquisition), but not recent (1–2 days after acquisition) contextual fear memories can be recalled after injection of the DREADD agonist (CNO) in animals expressing the inhibitory DREADD in the entire hippocampus. Our data demonstrate a time-dependent role of the hippocampus in memory retrieval, supporting the standard model of systems consolidation.
Collapse
Affiliation(s)
- Carmen Varela
- Picower Institute for Learning and Memory, Department of Brain and Cognitive Sciences, MIT, Cambridge, MA, United States of America
| | - Sarah Weiss
- Picower Institute for Learning and Memory, Department of Brain and Cognitive Sciences, MIT, Cambridge, MA, United States of America
| | - Retsina Meyer
- McGovern Institute for Brain Research, Department of Brain and Cognitive Sciences, MIT, Cambridge, MA, United States of America
| | - Michael Halassa
- Picower Institute for Learning and Memory, Department of Brain and Cognitive Sciences, MIT, Cambridge, MA, United States of America
- The Neuroscience Institute, Langone Medical Center, New York University, New York, New York, United States of America
| | - Joseph Biedenkapp
- Picower Institute for Learning and Memory, Department of Brain and Cognitive Sciences, MIT, Cambridge, MA, United States of America
| | - Matthew A. Wilson
- Picower Institute for Learning and Memory, Department of Brain and Cognitive Sciences, MIT, Cambridge, MA, United States of America
| | - Ki Ann Goosens
- McGovern Institute for Brain Research, Department of Brain and Cognitive Sciences, MIT, Cambridge, MA, United States of America
| | - Daniel Bendor
- Picower Institute for Learning and Memory, Department of Brain and Cognitive Sciences, MIT, Cambridge, MA, United States of America
- Institute of Behavioral Neuroscience, Department of Experimental Psychology, University College London, London, United Kingdom
- * E-mail:
| |
Collapse
|
50
|
Matos MJ, Vilar S, Kachler S, Vazquez-Rodriguez S, Varela C, Delogu G, Hripcsak G, Santana L, Uriarte E, Klotz KN, Borges F. Progress in the development of small molecules as new human A3 adenosine receptor ligands based on the 3-thiophenylcoumarin core. Med Chem Commun 2016. [DOI: 10.1039/c5md00573f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
3-Thiophenylcoumarins are described as adenosine receptor ligands. Synthesis, in vitro pharmacological assays and docking studies were performed.
Collapse
|