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Arribas C, Decembrino N, Raffaeli G, Amodeo I, González-Caballero JL, Riaza M, Ortiz-Movilla R, Massenzi L, Gizzi C, Araimo G, Cattarelli D, Aversa S, Martinelli S, Frezza S, Orfeo L, Mosca F, Cavallaro G, Garrido F. Ototoxic and nephrotoxic drugs in neonatal intensive care units: results of a Spanish and Italian survey. Eur J Pediatr 2024:10.1007/s00431-024-05467-w. [PMID: 38492032 DOI: 10.1007/s00431-024-05467-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Revised: 01/26/2024] [Accepted: 01/31/2024] [Indexed: 03/18/2024]
Abstract
Neonates face heightened susceptibility to drug toxicity, often exposed to off-label medications with dosages extrapolated from adult or pediatric studies. Premature infants in Neonatal Intensive Care Units (NICUs) are particularly at risk due to underdeveloped pharmacokinetics and exposure to multiple drugs. The study aimed to survey commonly used medications with a higher risk of ototoxicity and nephrotoxicity in Spanish and Italian neonatal units. A prospective cross-sectional study was conducted in Italian and Spanish neonatal units using a web-based survey with 43 questions. A modified Delphi method involved experts refining the survey through online consensus. Ethical approval was obtained, and responses were collected from January to July 2023. The survey covered various aspects, including drug-related ototoxic and nephrotoxic management, hearing screening, and therapeutic drug monitoring. Responses from 131 participants (35.9% from Spain and 64.1% from Italy) revealed awareness of drug toxicity risks. Varied practices were observed in hearing screening protocols, and a high prevalence of ototoxic and nephrotoxic drug use, including aminoglycosides (100%), vancomycin (70.2%), loop diuretics (63.4%), and ibuprofen (62.6%). Discrepancies existed in guideline availability and adherence, with differences between Italy and Spain in therapeutic drug monitoring practices. CONCLUSIONS The study underscores the need for clinical guidelines and uniform practices in managing ototoxic and nephrotoxic drugs in neonatal units. Awareness is high, but inconsistencies in practices indicate a necessity for standardization, including the implementation of therapeutic drug monitoring and the involvement of clinical pharmacologists. Addressing these issues is crucial for optimizing neonatal care in Southern Europe. WHAT IS KNOWN • Neonates in intensive care face a high risk of nephrotoxicity and ototoxicity from drugs like aminoglycosides, vancomycin, loop diuretics, and ibuprofen. • Therapeutic drug monitoring is key for managing these risks, optimizing dosing for efficacy and minimizing side effects. WHAT IS NEW • NICUs in Spain and Italy show high drug toxicity awareness but differ in ototoxic/nephrotoxic drug management. • Urgent need for standard guidelines and practices to address nephrotoxic risks from aminoglycosides, vancomycin, loop diuretics, and ibuprofen.
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Affiliation(s)
- Cristina Arribas
- Neonatal Intensive Care Unit, Clínica Universidad de Navarra, 28027, Madrid, Spain
| | - Nunzia Decembrino
- Neonatal Intensive Care Unit, AOU Policlinico G. Rodolico San Marco, 95123, Catania, Italy
| | - Genny Raffaeli
- Neonatal Intensive Care Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, 20122, Milan, Italy.
| | - Ilaria Amodeo
- Neonatal Intensive Care Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, 20122, Milan, Italy
| | | | - Mónica Riaza
- Department of Pediatrics, Clínica Universidad de Navarra, 31008, Pamplona, Spain
| | - Roberto Ortiz-Movilla
- Neonatal Intensive Care Unit, Hospital Universitario Puerta de Hierro-Majadahonda, 28222, Madrid, Spain
| | - Luca Massenzi
- Neonatal Intensive Care Unit, Ospedale Regionale Di Bolzano, 39100, Bolzano, Italy
| | - Camilla Gizzi
- Division of Pediatrics and Neonatology, Sandro Pertini Hospital, 00157, Rome, Italy
| | - Gabriella Araimo
- Neonatal Intensive Care Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, 20122, Milan, Italy
| | - Donatella Cattarelli
- Division of Pediatrics and Neonatology, ASST del Garda, 25015, Desenzano del Garda (BS), Italy
| | - Salvatore Aversa
- Neonatal Intensive Care Unit, Children's Hospital, ASST Spedali Civili, 25123, Brescia, Italy
| | - Stefano Martinelli
- Neonatal Intensive Care Unit, ASST Grande Ospedale Metropolitano Niguarda, 20162, Milan, Italy
| | - Simonetta Frezza
- Division of Neonatology, Area of Child Health, Department of Woman, Child Health and Public Health, Fondazione IRCCS Policlinico Universitario Agostino Gemelli, 00168, Rome, Italy
| | - Luigi Orfeo
- Neonatal Intensive Care Unit, Isola Tiberina Hospital Gemelli Isola, 00186, Rome, Italy
| | - Fabio Mosca
- Neonatal Intensive Care Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, 20122, Milan, Italy
- Department of Clinical Sciences and Community Health, Università Degli Studi Di Milano, 20122, Milan, Italy
| | - Giacomo Cavallaro
- Neonatal Intensive Care Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, 20122, Milan, Italy
| | - Felipe Garrido
- Neonatal Intensive Care Unit, Clínica Universidad de Navarra, 28027, Madrid, Spain
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Arribas C, Cavallaro G, Gonzalez JL, Lagares C, Raffaeli G, Smits A, Simons SHP, Villamor E, Allegaert K, Garrido F. Global cross-sectional survey on neonatal pharmacologic sedation and analgesia practices and pain assessment tools: impact of the sociodemographic index (SDI). Pediatr Res 2024:10.1038/s41390-024-03032-7. [PMID: 38351093 DOI: 10.1038/s41390-024-03032-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 12/22/2023] [Accepted: 01/02/2024] [Indexed: 02/19/2024]
Abstract
BACKGROUND There is variability in the use of sedatives and analgesics in neonatal intensive care units (NICUs). We aimed to investigate the use of analgesics and sedatives and the management of neonatal pain and distress. METHODS This was a global, prospective, cross-sectional study. A survey was distributed May-November 2022. The primary outcome of this research was to compare results between countries depending on their socio-sanitary level using the sociodemographic index (SDI). We organized results based on geographical location. RESULTS The survey collected 1304 responses, but we analyzed 924 responses after database cleaning. Responses from 98 different countries were analyzed. More than 60% of NICUs reported having an analgosedation guideline, and one-third of respondents used neonatal pain scales in more than 80% of neonates. We found differences in the management of sedation and analgesia between NICUs on different continents, but especially between countries with different SDIs. Countries with a higher SDI had greater availability of and adherence to analgosedation guidelines, as well as higher rates of analgosedation for painful or distressing procedures. Countries with different SDIs reported differences in analgosedation for neonatal intubation, invasive ventilation, and therapeutic hypothermia, among others. CONCLUSIONS Socio-economic status of countries impacts on neonatal analgosedation management. IMPACT There is significant variability in the pain management practices in neonates. There is a lack of knowledge related to how neonatal pain management practices differ between regions. Sociodemographic index is a key factor associated with differences in neonatal pain management practices across global regions.
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Affiliation(s)
- Cristina Arribas
- Department of Pediatrics, Neonatal Intensive Care Unit, Clínica Universidad de Navarra, Calle Marquesado de Santa Marta, 1, Madrid, 28027, Spain
| | - Giacomo Cavallaro
- Neonatal Intensive Care Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, 20122, Milan, Italy.
| | - Juan-Luis Gonzalez
- Department of Statistics and Operations Research, Faculty of Medicine, University of Cadiz, 11003, Cádiz, Spain
| | - Carolina Lagares
- Department of Statistics and Operations Research, Faculty of Medicine, University of Cadiz, 11003, Cádiz, Spain
| | - Genny Raffaeli
- Neonatal Intensive Care Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, 20122, Milan, Italy
- Department of Clinical Sciences and Community Health, Università degli Studi di Milano, 20122, Milan, Italy
| | - Anne Smits
- Department of Development and Regeneration, KU Leuven, Leuven, Belgium
- Neonatal Intensive Care Unit, University Hospitals Leuven, Leuven, Belgium
| | - Sinno H P Simons
- Department of Pediatrics, Division of Neonatology, Erasmus University Medical Center-Sophia Children's Hospital, Rotterdam, The Netherlands
| | - Eduardo Villamor
- MosaKids Children's Hospital, Maastricht University Medical Center (MUMC + ), School for Oncology and Reproduction (GROW), Maastricht University, 6202AZ, Maastricht, The Netherlands
| | - Karel Allegaert
- Department of Development and Regeneration, KU Leuven, Leuven, Belgium
- Department of Hospital Pharmacy, Erasmus MC, Rotterdam, The Netherlands
- Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, Leuven, Belgium
| | - Felipe Garrido
- Department of Pediatrics, Neonatal Intensive Care Unit, Clínica Universidad de Navarra, Calle Marquesado de Santa Marta, 1, Madrid, 28027, Spain
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Provitera L, Tomaselli A, Raffaeli G, Crippa S, Arribas C, Amodeo I, Gulden S, Amelio GS, Cortesi V, Manzoni F, Cervellini G, Cerasani J, Menis C, Pesenti N, Tripodi M, Santi L, Maggioni M, Lonati C, Oldoni S, Algieri F, Garrido F, Bernardo ME, Mosca F, Cavallaro G. Human Bone Marrow-Derived Mesenchymal Stromal Cells Reduce the Severity of Experimental Necrotizing Enterocolitis in a Concentration-Dependent Manner. Cells 2023; 12:cells12050760. [PMID: 36899900 PMCID: PMC10000931 DOI: 10.3390/cells12050760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 02/10/2023] [Accepted: 02/24/2023] [Indexed: 03/06/2023] Open
Abstract
Necrotizing enterocolitis (NEC) is a devastating gut disease in preterm neonates. In NEC animal models, mesenchymal stromal cells (MSCs) administration has reduced the incidence and severity of NEC. We developed and characterized a novel mouse model of NEC to evaluate the effect of human bone marrow-derived MSCs (hBM-MSCs) in tissue regeneration and epithelial gut repair. NEC was induced in C57BL/6 mouse pups at postnatal days (PND) 3-6 by (A) gavage feeding term infant formula, (B) hypoxia/hypothermia, and (C) lipopolysaccharide. Intraperitoneal injections of PBS or two hBM-MSCs doses (0.5 × 106 or 1 × 106) were given on PND2. At PND 6, we harvested intestine samples from all groups. The NEC group showed an incidence of NEC of 50% compared with controls (p < 0.001). Severity of bowel damage was reduced by hBM-MSCs compared to the PBS-treated NEC group in a concentration-dependent manner, with hBM-MSCs (1 × 106) inducing a NEC incidence reduction of up to 0% (p < 0.001). We showed that hBM-MSCs enhanced intestinal cell survival, preserving intestinal barrier integrity and decreasing mucosal inflammation and apoptosis. In conclusion, we established a novel NEC animal model and demonstrated that hBM-MSCs administration reduced the NEC incidence and severity in a concentration-dependent manner, enhancing intestinal barrier integrity.
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Affiliation(s)
- Livia Provitera
- Neonatal Intensive Care Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy
| | - Andrea Tomaselli
- Neonatal Intensive Care Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy
- Department of Clinical Sciences and Community Health, Università degli Studi di Milano, 20122 Milan, Italy
| | - Genny Raffaeli
- Neonatal Intensive Care Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy
- Department of Clinical Sciences and Community Health, Università degli Studi di Milano, 20122 Milan, Italy
- Correspondence: (G.R.); (G.C.); Tel.: +39-(02)-55032234 (G.C.); Fax: +39-(02)-55032217 (G.R. & G.C.)
| | - Stefania Crippa
- San Raffaele Telethon Institute for Gene Therapy (SR-Tiget), IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy
| | - Cristina Arribas
- Department of Pediatrics, Clínica Universidad de Navarra, 28027 Madrid, Spain
| | - Ilaria Amodeo
- Neonatal Intensive Care Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy
| | - Silvia Gulden
- Neonatal Intensive Care Unit, Sant’Anna Hospital, 22042 Como, Italy
| | - Giacomo Simeone Amelio
- Neonatal Intensive Care Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy
| | - Valeria Cortesi
- Neonatal Intensive Care Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy
- Department of Clinical Sciences and Community Health, Università degli Studi di Milano, 20122 Milan, Italy
| | - Francesca Manzoni
- Neonatal Intensive Care Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy
- Department of Clinical Sciences and Community Health, Università degli Studi di Milano, 20122 Milan, Italy
| | - Gaia Cervellini
- Neonatal Intensive Care Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy
- Department of Clinical Sciences and Community Health, Università degli Studi di Milano, 20122 Milan, Italy
| | - Jacopo Cerasani
- Neonatal Intensive Care Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy
- Department of Clinical Sciences and Community Health, Università degli Studi di Milano, 20122 Milan, Italy
| | - Camilla Menis
- Neonatal Intensive Care Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy
- Department of Clinical Sciences and Community Health, Università degli Studi di Milano, 20122 Milan, Italy
| | - Nicola Pesenti
- Neonatal Intensive Care Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy
- Department of Statistics and Quantitative Methods, Division of Biostatistics, Epidemiology and Public Health, University of Milano-Bicocca, 20126 Milan, Italy
- Revelo Datalabs S.R.L., 20142 Milan, Italy
| | - Matteo Tripodi
- Neonatal Intensive Care Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy
| | - Ludovica Santi
- San Raffaele Telethon Institute for Gene Therapy (SR-Tiget), IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy
| | - Marco Maggioni
- Department of Pathology, Fondazione Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy
| | - Caterina Lonati
- Center for Preclinical Investigation, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy
| | - Samanta Oldoni
- Center for Preclinical Investigation, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy
| | - Francesca Algieri
- Research and Development Unit, Postbiotica S.R.L., 20123 Milan, Italy
| | - Felipe Garrido
- Department of Pediatrics, Clínica Universidad de Navarra, 28027 Madrid, Spain
| | - Maria Ester Bernardo
- San Raffaele Telethon Institute for Gene Therapy (SR-Tiget), IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy
- Pediatric Immunohematology Unit, BMT Program, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy
- Maternal and Child Department, Vita-Salute San Raffaele University, 20132 Milan, Italy
| | - Fabio Mosca
- Neonatal Intensive Care Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy
- Department of Clinical Sciences and Community Health, Università degli Studi di Milano, 20122 Milan, Italy
| | - Giacomo Cavallaro
- Neonatal Intensive Care Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy
- Correspondence: (G.R.); (G.C.); Tel.: +39-(02)-55032234 (G.C.); Fax: +39-(02)-55032217 (G.R. & G.C.)
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Garrido F, Alvarez A, González-Caballero JL, Garcia P, Couso B, Iriso I, Merino M, Raffaeli G, Sanmiguel P, Arribas C, Vacaroaia A, Cavallaro G. Description of the Exposure of the Most-Followed Spanish Instamoms' Children to Social Media. Int J Environ Res Public Health 2023; 20:2426. [PMID: 36767792 PMCID: PMC9915261 DOI: 10.3390/ijerph20032426] [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: 12/30/2022] [Revised: 01/24/2023] [Accepted: 01/26/2023] [Indexed: 06/18/2023]
Abstract
There is evidence of the risk of overexposure of children on social networks by parents working as influencers. A cross-sectional study of the profiles of the sixteen most-followed Instamoms in Spain was carried out. An analysis of these profiles was performed over a full month (April 2022), three times a week, to describe the representation of influencers' children in the posts shared by them, as well as their role in the Instamoms' marketing. A total of 192 evaluations of the profiles were performed in the study period. The average number of children exposed by an Instamom was three, generally preschoolers and schoolchildren. The children appear in a context of the family home and accompanied by their mother. The type of advertising that accompanies the appearance of underage children is usually women or children's clothing, but also food products, leisure, etc. Appearance of children in the posts had a statistically significant influence on followers measured by the number of likes. Results provided the identification of two Instamom clusters with differentiated behaviors in relation to appearance of children in posts. It is important to involve Social Pediatrics in the protection of the privacy and interests of children given the increase in sharenting. The authors believe that there are concerns about their explicit consent to public exposure from early childhood and about the medium and long-term effect that this may have on their future well-being.
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Affiliation(s)
- Felipe Garrido
- Department of Pediatrics, Clínica Universidad de Navarra, 28027 Madrid, Spain
| | - Alexandra Alvarez
- Department of Pediatrics, Clínica Universidad de Navarra, 28027 Madrid, Spain
| | | | - Pilar Garcia
- Jérôme Lejeune Medical Institute, 28012 Madrid, Spain
| | - Beatriz Couso
- Department of Pediatrics, Clínica Universidad de Navarra, 28027 Madrid, Spain
| | - Isabel Iriso
- Department of Pediatrics, Clínica Universidad de Navarra, 28027 Madrid, Spain
| | - Maria Merino
- Department of Pediatrics, Clínica Universidad de Navarra, 28027 Madrid, Spain
| | - Genny Raffaeli
- Neonatal Intensive Care Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy
- Department of Clinical Sciences and Community Health, Università degli Studi di Milano, 20122 Milan, Italy
| | - Patricia Sanmiguel
- ISEM Fashion Business School, Universidad de Navarra, 28027 Madrid, Spain
| | - Cristina Arribas
- Department of Pediatrics, Clínica Universidad de Navarra, 28027 Madrid, Spain
| | - Alex Vacaroaia
- Department of Pediatrics, Clínica Universidad de Navarra, 28027 Madrid, Spain
| | - Giacomo Cavallaro
- Neonatal Intensive Care Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy
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Cortegano I, Rodríguez M, Hernángómez S, Arrabal A, Garcia-Vao C, Rodríguez J, Fernández S, Díaz J, de la Rosa B, Solís B, Arribas C, Garrido F, Zaballos A, Roa S, López V, Gaspar ML, de Andrés B. Age-dependent nasal immune responses in non-hospitalized bronchiolitis children. Front Immunol 2022; 13:1011607. [PMID: 36561744 PMCID: PMC9763932 DOI: 10.3389/fimmu.2022.1011607] [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: 08/04/2022] [Accepted: 11/09/2022] [Indexed: 12/12/2022] Open
Abstract
Bronchiolitis in children is associated with significant rates of morbidity and mortality. Many studies have been performed using samples from hospitalized bronchiolitis patients, but little is known about the immunological responses from infants suffering from mild/moderate bronchiolitis that do not require hospitalization. We have studied a collection of nasal lavage fluid (NLF) samples from outpatient bronchiolitis children as a novel strategy to unravel local humoral and cellular responses, which are not fully characterized. The children were age-stratified in three groups, two of them (GI under 2-months, GII between 2-4 months) presenting a first episode of bronchiolitis, and GIII (between 4 months and 2 years) with recurrent respiratory infections. Here we show that elevated levels of pro-inflammatory cytokines (IL1β, IL6, TNFα, IL18, IL23), regulatory cytokines (IL10, IL17A) and IFNγ were found in the three bronchiolitis cohorts. However, little or no change was observed for IL33 and MCP1, at difference to previous results from bronchiolitis hospitalized patients. Furthermore, our results show a tendency to IL1β, IL6, IL18 and TNFα increased levels in children with mild pattern of symptom severity and in those in which non RSV respiratory virus were detected compared to RSV+ samples. By contrast, no such differences were found based on gender distribution. Bronchiolitis NLFs contained more IgM, IgG1, IgG3 IgG4 and IgA than NLF from their age-matched healthy controls. NLF from bronchiolitis children predominantly contained neutrophils, and also low frequency of monocytes and few CD4+ and CD8+ T cells. NLF from infants older than 4-months contained more intermediate monocytes and B cell subsets, including naïve and memory cells. BCR repertoire analysis of NLF samples showed a biased VH1 usage in IgM repertoires, with low levels of somatic hypermutation. Strikingly, algorithmic studies of the mutation profiles, denoted antigenic selection on IgA-NLF repertoires. Our results support the use of NLF samples to analyze immune responses and may have therapeutic implications.
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Affiliation(s)
- Isabel Cortegano
- Immunobiology Department, Centro Nacional de Microbiología (CNM), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - Mercedes Rodríguez
- Immunobiology Department, Centro Nacional de Microbiología (CNM), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | | | - Alejandro Arrabal
- Immunobiology Department, Centro Nacional de Microbiología (CNM), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | | | - Javier Rodríguez
- Pediatrics Department, Atención Primaria Galapagar, Madrid, Spain
| | - Sandra Fernández
- Pediatrics Department, Atención Primaria Galapagar, Madrid, Spain
| | - Juncal Díaz
- Pediatrics Department, Atención Primaria Galapagar, Madrid, Spain
| | | | - Beatriz Solís
- Pediatrics Department, Hospital Puerta de Hierro, Madrid, Spain
| | - Cristina Arribas
- Pediatrics Department, Clínica Universitaria de Navarra, Madrid, Spain
| | - Felipe Garrido
- Pediatrics Department, Clínica Universitaria de Navarra, Madrid, Spain
| | - Angel Zaballos
- Genomics Central Core, Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - Sergio Roa
- Biochemistry and Genetics Department, Universidad de Navarra, Pamplona, Spain
| | - Victoria López
- Chronic Disease Programme Unidad de Investigación de Enfermedades Crónicas (UFIEC), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - Maria-Luisa Gaspar
- Immunobiology Department, Centro Nacional de Microbiología (CNM), Instituto de Salud Carlos III (ISCIII), Madrid, Spain,*Correspondence: Belén de Andrés, ; Maria-Luisa Gaspar,
| | - Belén de Andrés
- Immunobiology Department, Centro Nacional de Microbiología (CNM), Instituto de Salud Carlos III (ISCIII), Madrid, Spain,*Correspondence: Belén de Andrés, ; Maria-Luisa Gaspar,
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Arcos R, Gertrudix M, Arribas C, Cardarilli M. Responses to digital disinformation as part of hybrid threats: a systematic review on the effects of disinformation and the effectiveness of fact-checking/debunking. Open Res Eur 2022; 2:8. [PMID: 37645289 PMCID: PMC10446021 DOI: 10.12688/openreseurope.14088.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 11/02/2021] [Indexed: 08/31/2023]
Abstract
The dissemination of purposely deceitful or misleading content to target audiences for political aims or economic purposes constitutes a threat to democratic societies and institutions, and is being increasingly recognized as a major security threat, particularly after evidence and allegations of hostile foreign interference in several countries surfaced in the last five years. Disinformation can also be part of hybrid threat activities. This research paper examines findings on the effects of disinformation and addresses the question of how effective counterstrategies against digital disinformation are, with the aim of assessing the impact of responses such as the exposure and disproval of disinformation content and conspiracy theories. The paper's objective is to synthetize the main scientific findings on disinformation effects and on the effectiveness of debunking, inoculation, and forewarning strategies against digital disinformation. A mixed methodology is used, combining qualitative interpretive analysis and structured technique for evaluating scientific literature such as a systematic literature review (SLR), following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) framework.
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Affiliation(s)
- Rubén Arcos
- University Rey Juan Carlos, Móstoles, Madrid, 28933, Spain
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Garrido F, Allegaert K, Arribas C, Villamor E, Raffaeli G, Paniagua M, Cavallaro G. Variations in Antibiotic Use and Sepsis Management in Neonatal Intensive Care Units: A European Survey. Antibiotics (Basel) 2021; 10:antibiotics10091046. [PMID: 34572631 PMCID: PMC8469483 DOI: 10.3390/antibiotics10091046] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 08/21/2021] [Accepted: 08/24/2021] [Indexed: 12/18/2022] Open
Abstract
Management of neonatal sepsis and the use of antimicrobials have an important impact on morbidity and mortality. However, there is no recent background on which antibiotic regimens are used in different European neonatal intensive care units (NICUs). Our study aimed to describe the use of antibiotics and other aspects of early- and late-onset sepsis (EOS and LOS, respectively) management by European NICUs. We conducted an online survey among NICUs throughout Europe to collect information about antibiotic stewardship, antibiotic regimens, and general aspects of managing neonatal infections. NICUs from up to 38 European countries responded, with 271 valid responses. Most units had written clinical guidelines for EOS (92.2%) and LOS (81.1%) management. For EOS, ampicillin, penicillin, gentamicin, and amikacin were the most commonly used antibiotics. Analysis of the combinations of EOS regimens showed that the most frequently used was ampicillin plus gentamicin (54.6%). For LOS, the most frequently used antibiotics were vancomycin (52.4%), gentamicin (33.9%), cefotaxime (28%), and meropenem (15.5%). Other aspects of the general management of sepsis have also been analyzed. The management of neonatal sepsis in European NICUs is diverse. There was high self-reported adherence to the local clinical guidelines. There was homogeneity in the combination of antibiotics in EOS but less in LOS.
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Affiliation(s)
- Felipe Garrido
- Department of Pediatrics, Clínica Universidad de Navarra, 28027 Madrid, Spain; (C.A.); (M.P.)
- Correspondence: ; Tel.: +34-661214947
| | - Karel Allegaert
- Department of Development and Regeneration, KU Leuven, 3000 Leuven, Belgium;
- Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, 3000 Leuven, Belgium
- Department of Hospital Pharmacy, Erasmus MC University Medical Center, 3015 GD Rotterdam, The Netherlands
| | - Cristina Arribas
- Department of Pediatrics, Clínica Universidad de Navarra, 28027 Madrid, Spain; (C.A.); (M.P.)
| | - Eduardo Villamor
- Department of Pediatrics, Maastricht University Medical Center (MUMC+), School for Oncology and Developmental Biology (GROW), 6229 Maastricht, The Netherlands;
| | - Genny Raffaeli
- Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, NICU, 20122 Milan, Italy; (G.R.); (G.C.)
- Department of Clinical Sciences and Community Health, Università degli Studi di Milano, 20122 Milan, Italy
| | - Miren Paniagua
- Department of Pediatrics, Clínica Universidad de Navarra, 28027 Madrid, Spain; (C.A.); (M.P.)
| | - Giacomo Cavallaro
- Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, NICU, 20122 Milan, Italy; (G.R.); (G.C.)
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8
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Arribas C, Prolongo M, Sánchez-Cabezudo M, Moriche R, Prolongo S. Hydrothermal ageing of graphene/carbon nanotubes/epoxy hybrid nanocomposites. Polym Degrad Stab 2019. [DOI: 10.1016/j.polymdegradstab.2019.109003] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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9
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Prolongo SG, Moriche R, Ureña A, Flórez S, Gaztelumendi I, Arribas C, Prolongo MG. Carbon nanotubes and graphene into thermosetting composites: Synergy and combined effect. J Appl Polym Sci 2018. [DOI: 10.1002/app.46475] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- S. G. Prolongo
- Material Science and Engineering Area; ESCET, Universidad Rey Juan Carlos, C/Tulipán s/n; Móstoles Madrid 28933 Spain
| | - R. Moriche
- Material Science and Engineering Area; ESCET, Universidad Rey Juan Carlos, C/Tulipán s/n; Móstoles Madrid 28933 Spain
| | - A. Ureña
- Material Science and Engineering Area; ESCET, Universidad Rey Juan Carlos, C/Tulipán s/n; Móstoles Madrid 28933 Spain
| | - S. Flórez
- Tecnalia Research & Innovation, Paseo Mikeletegi, 2; San Sebastian 20009 Spain
| | - I. Gaztelumendi
- Tecnalia Research & Innovation, Paseo Mikeletegi, 2; San Sebastian 20009 Spain
| | - C. Arribas
- Department of Aerospace Materials and Production; E.T.S.I. Aeronáutica y del Espacio, Universidad Politécnica de Madrid; Madrid Spain
| | - M. G. Prolongo
- Department of Aerospace Materials and Production; E.T.S.I. Aeronáutica y del Espacio, Universidad Politécnica de Madrid; Madrid Spain
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10
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Arribas C, Cabellos B, Sánchez C, Cuadrado C, Guillamón E, Pedrosa MM. The impact of extrusion on the nutritional composition, dietary fiber and in vitro digestibility of gluten-free snacks based on rice, pea and carob flour blends. Food Funct 2017; 8:3654-3663. [PMID: 28914314 DOI: 10.1039/c7fo00910k] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2023]
Abstract
Consumers and the food industry are demanding healthier products. Expanded snacks with a high nutritional value were developed from different rice, pea and carob flour blends. The proximate composition, starch (total and resistant), amylose and amylopectin, dietary fiber (soluble and insoluble) contents, and the in vitro protein digestibility of different rice-legume formulations, were evaluated before and after the extrusion process. Compared with the corresponding non-extruded blends (control), the extrusion treatment did not change the total protein content, however, it reduced the soluble protein (61-86%), the fat (69-92%) and the resistant starch contents (100%). The total starch content of all studied blends increased (2-19%) after extrusion. The processing increased the in vitro protein digestibility, reaching values around 88-95% after extrusion. Total dietary fiber was reduced around 30%, and the insoluble fraction was affected to a larger extent than the soluble fraction by the extrusion process. Because of its balanced nutritional composition, high dietary fiber content, as well as low energy density, these novel gluten-free snack-like foods could be considered as functional foods and a healthier alternative to commercially available gluten-containing or gluten-free and low nutritional value snacks.
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Affiliation(s)
- C Arribas
- Food Technology Department, SGIT-INIA, Ctra de La Coruña, Km 7.5., 28040 Madrid, Spain.
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11
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Flores A, Ania F, Arribas C, Ochoa A, Scholtyssek S, Baltá-Calleja F, Baer E. Confined crystallization of nanolayered poly(ethylene terephthalate) using X-ray diffraction methods. POLYMER 2012. [DOI: 10.1016/j.polymer.2012.06.047] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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12
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Flores A, Arribas C, Calleja FJB, Ania F. X-ray scattering as a tool for the study of finite size effects in polymers. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311089410] [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: 11/11/2022] Open
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13
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García JR, Lozano P, Soler M, Alvarez Moro FJ, Fuertes S, Arribas C, Riera E, Lomeña F. [Impact of an additional inspiration CT scan on the conventional protocol of the ¹⁸F-FDG PET-CT in the detection of small pulmonary nodes]. ACTA ACUST UNITED AC 2010; 29:285-8. [PMID: 20702003 DOI: 10.1016/j.remn.2010.06.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2010] [Revised: 06/09/2010] [Accepted: 06/10/2010] [Indexed: 11/19/2022]
Abstract
AIM To determine the impact of an additional inspiration CT scan on the conventional ¹⁸F-FDG PET-CT protocol in the detection of small pulmonary nodules. METHOD One hundred consecutive patients who presented with one or various nodules were studied. Whole-body PET-CT was performed using Gemini (Philips). CT acquisition parameters were 120 kV/25 mAs, the same as those for the transmission/fusion CT (mild expiration) and inspiratory CT. RESULTS A total of 188 nodules were detected in the inspiratory CT with sizes between 0.3-3 cm. Non-inspiratory CT did not show 20/188 nodules (10.6%) with sizes between 0.3-1cm, this corresponding to 17 patients. The most frequent localization of non-detectable nodules in non-inspiratory CT was the lower lobes. ¹⁸F-FDG uptake was detected by the PET in 83.9% and 72% of nodules with > 1 cm and between 0.7 and 1cm, respectively. However, only 10.5% of nodules <0.7 cm showed increased metabolic activity. CONCLUSION In selected patients, inspiratory CT added to conventional PET-CT significantly improves the detection of small nodules (10.6%), especially in those lesions located in the lower lobes, due to respiratory movements, and may have an impact on patient management.
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Affiliation(s)
- J R García
- CETIR Unidad PET, Esplugues de Llobregat, Barcelona, España.
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14
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Ribas N, Arribas C, Murillas J. [Streptococcus agalactiae tricuspid valve endocarditis. A case report and review of literature]. Enferm Infecc Microbiol Clin 2009; 27:191-2. [PMID: 19306720 DOI: 10.1016/j.eimc.2008.04.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2007] [Accepted: 04/10/2008] [Indexed: 11/24/2022]
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15
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Sánchez Y, Garfia C, López Alonso G, Yela C, Amo M, Arribas C, Cruz Vigo F, Solís Herruzo JA. [Acute pancreatitis, mesenteric adenopathies, and diarrhea]. Rev Esp Enferm Dig 2008; 100:779-787. [PMID: 19222338 DOI: 10.4321/s1130-01082008001200008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Affiliation(s)
- Y Sánchez
- Servicios de Medicina del Aparato Digestivo, Hospital Universitario 12 de Octubre, Madrid
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16
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Arribas C, Sepúlveda L, Salom C, Masegosa R, Prolongo M. Morphology effect on the hydrothermal ageing of a thermoplastic modified epoxy thermoset. POLYM ENG SCI 2007. [DOI: 10.1002/pen.20780] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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17
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López Vicente J, Pérez-Carreras M, López-Cerón M, Arribas C, Solís Herruzo JA. [Spontaneous pneumococcal peritonitis in a cirrhotic patient without respiratory focus]. Rev Esp Enferm Dig 2006; 98:556-7. [PMID: 17022707 DOI: 10.4321/s1130-01082006000700012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
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18
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Prolongo MG, Arribas C, Salom C, Masegosa RM. Phase separation, cure kinetics, and morphology of epoxy/poly(vinyl acetate) blends. J Appl Polym Sci 2006. [DOI: 10.1002/app.24613] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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19
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Abstract
Resistin is a secreted adipose tissue hormone that belongs to the resistin-like molecule family. We report here a new alternatively spliced isoform of the rat resistin gene, named S-resistin (short resistin), detected in adipose tissue by reverse transcription-polymerase chain reaction (RT-PCR). A comparison of this cDNA variant and genomic sequences indicates the lack of the second exon containing the secretory consensus signal. Both cDNAs, resistin and S-resistin, were carboxy-tagged with FLAG epitope and transiently expressed in cultured cell lines. While the resistin-FLAG construct gives the expected pattern for a secretion protein, the S-resistin-FLAG construct yielded a predominant nuclear staining. These results indicate that this splicing event regulates the fate and probably the function of the mature protein.
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Affiliation(s)
- A Del Arco
- Area de Bioquímica, Centro Regional de Investigaciones Biomédicas (CRIB), Facultad de Ciencias del Medio Ambiente, Universidad de Castilla-La Mancha, Av De Carlos III s/n, 45071, Toledo, Spain.
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20
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Peralta S, Carrascosa JM, Gallardo N, Ros M, Arribas C. Ageing increases SOCS-3 expression in rat hypothalamus: effects of food restriction. Biochem Biophys Res Commun 2002; 296:425-8. [PMID: 12163036 DOI: 10.1016/s0006-291x(02)00906-3] [Citation(s) in RCA: 74] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Aged Wistar rats are characterized by leptin and insulin resistance. The expression of SOCS-3 in hypothalamus increases with ageing. Food restriction during 3 months decreases obesity Lee index in aged rats with respect to their ad libitum aged-mates and brings serum leptin concentrations to values close to those of young rats. Food restriction partially reverts the increases in SOCS-3 mRNA levels associated with ageing. These results suggest that SOCS-3 may be a mediator of hypothalamic leptin resistance in the aged Wistar rat and that the hyperleptinemia associated with ageing is, at least in part, responsible for the increase of SOCS-3 expression in hypothalamus.
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Affiliation(s)
- S Peralta
- Faculty of Environmental Sciences, Regional Center of Biomedical Research, University of Castilla-La Mancha, Toledo, Spain
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21
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Fernández-Galaz C, Fernández-Agulló T, Pérez C, Peralta S, Arribas C, Andrés A, Carrascosa JM, Ros M. Long-term food restriction prevents ageing-associated central leptin resistance in wistar rats. Diabetologia 2002; 45:997-1003. [PMID: 12136398 DOI: 10.1007/s00125-002-0851-4] [Citation(s) in RCA: 77] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2002] [Revised: 02/27/2002] [Indexed: 10/27/2022]
Abstract
AIMS/HYPOTHESIS Ageing is associated with insulin and leptin resistance in mammals. These alterations might be caused by the increased adiposity associated with ageing, by ageing alone or both. We studied whether leptin resistance occurs at the central level in the Wistar rat and we aimed to discriminate between the effects of ageing from those of the increased adiposity associated with ageing. METHODS Leptin was infused intracerebroventricularly at a constant rate in young adult, old and old Wistar rats fasted for 3 months, using osmotic pumps. The effects on body weight, daily food intake, Lee index, adiposity and serum leptin values were analysed. The effect of food restriction on the expression of the long form of leptin receptor in the hypothalamus was also studied. RESULTS Leptin decreased daily food intake and body weight in young and old Wistar rats. With a dose of 10 microg/day similar responses were obtained in young and old rats but with a dose of 0.2 microg/day, only young rats showed decreases in these parameters. Food-restriction in old rats lowered adiposity and serum leptin to values close to those of young rats, recovered responsiveness to i.c.v. administration of leptin at the dose of 0.2 microg/day and increased leptin receptor expression in the hypothalamus. CONCLUSION/INTERPRETATION Our data show that old Wistar rats have a decreased response to leptin at the central level. Food-restriction recovers leptin responsiveness and increases leptin receptor in the hypothalamus suggesting that adiposity plays a key role in the development of leptin resistance associated with ageing.
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Affiliation(s)
- C Fernández-Galaz
- Faculty of Health Sciences, University Rey Juan Carlos, Alcorcón, Madrid, Spain
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22
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Fernández-Galaz C, Fernández-Agulló T, Campoy F, Arribas C, Gallardo N, Andrés A, Ros M, Carrascosa JM. Decreased leptin uptake in hypothalamic nuclei with ageing in Wistar rats. J Endocrinol 2001; 171:23-32. [PMID: 11572787 DOI: 10.1677/joe.0.1710023] [Citation(s) in RCA: 68] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Leptin interacts with specific receptors in hypothalamic nuclei and modulates energy balance. Growing evidence has shown the association of obesity and hyperleptinaemia with non-insulin-dependent diabetes mellitus and insulin resistance. The aged Wistar rat shows peripheral insulin resistance in the absence of obesity and alterations of glucose homeostasis. However, it is not known whether, in these animals, the leptin action is altered. Here we studied the effect of ageing on plasma leptin concentration and the ability of hypothalamic nuclei to capture i.c.v.-injected digoxigenin-labelled leptin. Our data indicate that 24-month-old animals are hyperleptinaemic. However, daily food intake was greater in old animals, suggesting that they are leptin resistant. Leptin uptake in the hypothalamus was reduced in old rats. This uptake was a receptor-mediated process as demonstrated by displacement. Leptin accumulation in hypothalamic nuclei was partially colocalized with neuropeptide Y fibres. Immunohistochemical and western blot analyses showed a lower amount of the long form of leptin receptors in the hypothalamus of aged rats. Analysis by RT-PCR also demonstrated a decreased expression of leptin receptor mRNA in old animals. We conclude that the lower leptin uptake may be explained, at least in part, by a decreased amount of receptors in hypothalamic neurones of the aged rats.
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Affiliation(s)
- C Fernández-Galaz
- Facultad de Ciencias de la Salud, Universidad Rey Juan Carlos, Alcorcón, Madrid, Spain
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23
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Arribas C, Carreño MC, García-Ruano JL, Rodríguez JF, Santos M, Sanz-Tejedor MA. First asymmetric hetero Diels-Alder reaction of 1-sulfinyl dienes with nitroso derivatives. A new entry to the synthesis of optically pure 1,4-imino-L-ribitol derivatives. Org Lett 2000; 2:3165-8. [PMID: 11009372 DOI: 10.1021/ol0063611] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Hetero Diels-Alder (HDA) cycloaddition of chiral 1-p-tolylsulfinyl-1,3-pentadiene with benzyl nitrosoformate, under mild conditions, yields 2H-1,2-oxazine 3 with complete regioselectivity and pi-facial diastereoselectivity. Sequential osmylation and protection of the resulting glycol gives the oxazine 5 which is directly transformed into enantiomerically pure 1,4,5-trideoxy-1,4-imino-L-ribitol 8 by reduction under Pd/C.
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Affiliation(s)
- C Arribas
- Departamento de Química Orgánica (E.T.S.I.I.), Universidad de Valladolid, Paseo del Cauce s/n, 47011, Valladolid, Spain
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24
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Sánchez BM, De Cos MA, Peralta FG, Arribas C, Armijo JA. Syva Emit 2000 and Roche "on line" subject to less interference by digoxin-like factors than Abbott TDx FPIA in newborns and pregnant women. Clin Chem 1996; 42:974-6. [PMID: 8665693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- B M Sánchez
- Clin. Pharmacol. and Obstet. and Gynecol. Serv., Univ. Hosp. M. de Valderilla, Santander, Spain
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25
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Sánchez BM, De Cos MA, Peralta FG, Arribas C, Armijo JA. Syva Emit 2000 and Roche "on line" subject to less interference by digoxin-like factors than Abbott TDx FPIA in newborns and pregnant women. Clin Chem 1996. [DOI: 10.1093/clinchem/42.6.974] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Affiliation(s)
- B M Sánchez
- Clin. Pharmacol. and Obstet. and Gynecol. Serv., Univ. Hosp. M. de Valderilla, Santander, Spain
| | - M A De Cos
- Clin. Pharmacol. and Obstet. and Gynecol. Serv., Univ. Hosp. M. de Valderilla, Santander, Spain
| | - F G Peralta
- Clin. Pharmacol. and Obstet. and Gynecol. Serv., Univ. Hosp. M. de Valderilla, Santander, Spain
| | - C Arribas
- Clin. Pharmacol. and Obstet. and Gynecol. Serv., Univ. Hosp. M. de Valderilla, Santander, Spain
| | - J A Armijo
- Clin. Pharmacol. and Obstet. and Gynecol. Serv., Univ. Hosp. M. de Valderilla, Santander, Spain
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26
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Montes H, Berrueta L, Cova J, Salmen S, Arribas C, Donis J, Hernandez M. [Prevalence of antibodies against hepatitis C virus in multitransfused patients]. G E N 1995; 49:132-9. [PMID: 8566684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
We have done a study in order two know the prevalence of anti-hepatitis C virus antibodies in polytransfused patients with hemophilia, leukemia and hemolytic anemia, along with 17 healthy donors, without previous history of transfusions. We analyzed samples from 10 hemophilic patients and 12 from leukemia, lymphoma and hemolytic anemia, all of them had received blood or blood products, at least six months before the study. Using a second generation ELISA, 4 positive sample (3 hemophilic and 1 lymphoma) were detected (10.26%), which represent a prevalence of 30% in the hemophilic group, in contrast with the prevalence detected in other countries. A very significant statistic association was demonstrated, between the positive ELISA, the amount of the transfused product (P < 0.0004) and the type of blood product used for transfusion (crioprecipited, P = 0.000, plasma P = 0.000).
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Affiliation(s)
- H Montes
- Centro Ambulatorio Médico Odontológico de la Universidad de Los Andes, Mérida, Venezuela
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27
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Abstract
In the fruitfly Drosophila, as in all eukaryotes examined so far, some ubiquitin-coding sequences appear fused to unrelated open reading frames. Two of these fusion genes have been previously described (the homologues of UBI1-UBI2 and UBI4 in yeast), and we report here the organization and expression of a third one, the DUb80 gene (the homologue of UBI3 in yeast). This gene encodes a ubiquitin monomer fused to an 80-amino-acid extension which is homologous with the ribosomal protein encoded by the UB13 gene. The 5' regulatory region of DUb80 shares common features with another ubiquitin fusion gene, DUb52, and with the ribosomal protein genes of Drosophila, Xenopus and mouse. We also find helix-loop-helix protein-binding sequences (E-boxes). The DUb80 gene is transcribed to a 0.9 kb mRNA which is particularly abundant under conditions of high protein synthesis, such as in ovaries and exponentially growing cells.
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Affiliation(s)
- R Barrio
- Departmento de Biología Molecular, Facultad de Ciencias, Universidad Autónoma de Madrid, Spain
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28
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del Arco A, García J, Arribas C, Barrio R, Blázquez MG, Izquierdo JM, Izquierdo M. Timing of p53 mutations during astrocytoma tumorigenesis. Hum Mol Genet 1993; 2:1687-90. [PMID: 8268922 DOI: 10.1093/hmg/2.10.1687] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
Using a combination of polymerase chain reaction and single-strand conformation polymorphism techniques (PCR-SSCP) we have analyzed 78 brain tumor samples (70 primary and 8 metastatic) for the presence of mutations in the conserved regions of the Tp53 (tumor p53) gene. We have found that only two groups, gliomas (exclusively in astrocytomas) and metastases, displayed Tp53 mutations. Three of eight (37.5%) metastases showed a mutant Tp53 allele accompanied by loss of the normal one. In contrast, the frequency of Tp53 mutations in the primary brain tumors examined was lower (5.7%). Although we have examined different types of primary brain tumors, Tp53 mutations were exclusively observed in both, low and high-grade astrocytomas (four of 24). The Tp53 mutations detected in astrocytic tumors appear to be correlated with the malignancy grade. The low-grade astrocytomas were heterozygous for the mutation, whereas the high-grade astrocytomas had affected the two Tp53 alleles, suggesting a two-steps model for inactivation of the p53 gene in astrocytomas. Thus, single p53 mutation seems to occur in initial stages of astrocytoma tumorigenesis; the later lost of the remaining wild-type allele appears associated with the progression towards a more malignant stage.
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Affiliation(s)
- A del Arco
- Departamento de Biología Molecular, Facultad de Ciencias, Universidad Autónoma de Madrid, Spain
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29
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Affiliation(s)
- R Barrio
- Departamento de Biología Molecular, Facultad de Ciencias, Universidad Autónoma de Madrid, Spain
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30
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Abstract
Ubiquitin belongs to a multigene family. In Drosophila two members of this family have been previously described. We report here the organization and expression of a third member, the DUb52 gene, isolated by screening a Drosophila melanogaster genomic library. This gene encodes an ubiquitin monomer fused to a 52-amino acid extension protein. There are no introns interrupting the coding sequence. Recently, it has been described that this extension encodes a ribosomal protein in Saccharomyces, Dictyostelium, and Arabidopsis. The present results show that the 5' regulatory region of DUb52 shares common features with the ribosomal protein genes of Drosophila, Xenopus and mouse, including GC- and pyrimidine-rich regions. Moreover, sequences similar to the consensus Ribo-box in Neurospora crassa have been identified. Furthermore, a sequence has been found that is similar to the binding site for the TFIIIA distal element factor from Xenopus laevis. The DUb52 gene is transcribed to a 0.9 kb mRNA that is expressed constitutively throughout development and is particularly abundant in ovaries. In addition, the DUb52 gene has been found to be preferentially transcribed in exponentially growing Drosophila cells.
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Affiliation(s)
- H L Cabrera
- Departamento de Biología Molecular, Facultad de Ciencias, Universidad Autónoma de Madrid, Spain
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31
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Cabrera y Poch HL, Arribas C, Izquierdo M. Sequence of a Drosophila cDNA encoding a ubiquitin gene fusion to a 52-aa ribosomal protein tail. Nucleic Acids Res 1990; 18:3994. [PMID: 2165256 PMCID: PMC331110 DOI: 10.1093/nar/18.13.3994] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Affiliation(s)
- H L Cabrera y Poch
- Departamento de Biología Molecular, Facultad de Ciencias, Universidad Autónoma, Madrid, Spain
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32
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Abstract
We have studied the presence of a cloned fragment of DNA from Drosophila melanogaster in other organisms by means of nucleic acid hybridization analysis. The isolated region is localized in polytene chromosomes at the 63F subdivision. This region includes a puff that responds within minutes to ecdysone stimulation. We have found that 63F DNA from D. melanogaster hybridizes 'in situ' to both DNA and RNA from D. simulans, D. teissieri, and D. hydei. In all these species the isolated DNA remains associated with one early-ecdysone stimulated puff. The isolated Drosophila recombinant DNA is also complementary to polyadenylated RNA from foetal and adult rat liver but fails to hybridize to the nonpolyadenylated RNA classes from both sources and to polyadenylated RNA from rat mammary glands.
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Izquierdo M, Arribas C, Alonso C. Isolation of a structural gene mapping to subregions 63F of Drosophila melanogaster and 90B of D. hydei polytene chromosomes. Chromosoma 1981; 83:353-66. [PMID: 6168445 DOI: 10.1007/bf00327358] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
We have isolated by molecular cloning techniques a structural gene that maps to subregion 63F of Drosophila melanogaster chromosome 3L. This locus being one of the early chromosomal targets for ecdysone stimulation, may be induced to puff by the hormone. The gene is on a plasmid vector and it has been designated as pDm 63F. This recombinant molecule also maps to the early ecdysone inducible subregion 90B of Drosophila hydei chromosome 4. The cytological inspection of large number of chromosomal sets after in situ hybridization of the cloned DNA, locates the cloned sequence between bands 63F 2-4 according to Bridges map. Similarly, in Drosophila hydei the cloned DNA maps between subdivisions 90B 2-4 according to Berendes' map. In situ hybridization of the pDm 63F cloned DNA, directed to the nascent RNA rather than to the DNA, shows two to three times more silver grains over the corresponding regions when puffed than in the resting stage. There are however quantitative differences attending to the transcriptional activity of homologous loci in both species. By RNA excess hybridization we have found that the cellular concentration of the 63F cloned mRNA is bout 2 times higher in hormone stimulated total larval tissues than in non-stimulated ones.
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