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Echeverría N, Gámbaro F, Beaucourt S, Soñora M, Hernández N, Cristina J, Moratorio G, Moreno P. Mixed Infections Unravel Novel HCV Inter-Genotypic Recombinant Forms within the Conserved IRES Region. Viruses 2024; 16:560. [PMID: 38675902 PMCID: PMC11053413 DOI: 10.3390/v16040560] [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: 02/20/2024] [Revised: 03/12/2024] [Accepted: 03/16/2024] [Indexed: 04/28/2024] Open
Abstract
Hepatitis C virus (HCV) remains a significant global health challenge, affecting millions of people worldwide, with chronic infection a persistent threat. Despite the advent of direct-acting antivirals (DAAs), challenges in diagnosis and treatment remain, compounded by the lack of an effective vaccine. The HCV genome, characterized by high genetic variability, consists of eight distinct genotypes and over ninety subtypes, underscoring the complex dynamics of the virus within infected individuals. This study delves into the intriguing realm of HCV genetic diversity, specifically exploring the phenomenon of mixed infections and the subsequent detection of recombinant forms within the conserved internal ribosome entry site (IRES) region. Previous studies have identified recombination as a rare event in HCV. However, our findings challenge this notion by providing the first evidence of 1a/3a (and vice versa) inter-genotypic recombination within the conserved IRES region. Utilizing advanced sequencing methods, such as deep sequencing and molecular cloning, our study reveals mixed infections involving genotypes 1a and 3a. This comprehensive approach not only confirmed the presence of mixed infections, but also identified the existence of recombinant forms not previously seen in the IRES region. The recombinant sequences, although present as low-frequency variants, open new avenues for understanding HCV evolution and adaptation.
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Affiliation(s)
- Natalia Echeverría
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Montevideo 11400, Uruguay; (N.E.); (F.G.); (M.S.); (J.C.); (G.M.)
- Laboratorio de Evolución Experimental de Virus, Institut Pasteur de Montevideo, Montevideo 11400, Uruguay
| | - Fabiana Gámbaro
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Montevideo 11400, Uruguay; (N.E.); (F.G.); (M.S.); (J.C.); (G.M.)
| | - Stéphanie Beaucourt
- Viral Populations and Pathogenesis Laboratory, Institut Pasteur, 75015 Paris, France;
| | - Martín Soñora
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Montevideo 11400, Uruguay; (N.E.); (F.G.); (M.S.); (J.C.); (G.M.)
- Laboratorio de Simulaciones Biomoleculares, Institut Pasteur de Montevideo, Montevideo 11400, Uruguay
| | - Nelia Hernández
- Clínica de Gastroenterología, Hospital de Clínicas, Facultad de Medicina, Universidad de la República, Montevideo 11600, Uruguay;
| | - Juan Cristina
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Montevideo 11400, Uruguay; (N.E.); (F.G.); (M.S.); (J.C.); (G.M.)
| | - Gonzalo Moratorio
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Montevideo 11400, Uruguay; (N.E.); (F.G.); (M.S.); (J.C.); (G.M.)
- Laboratorio de Evolución Experimental de Virus, Institut Pasteur de Montevideo, Montevideo 11400, Uruguay
| | - Pilar Moreno
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Montevideo 11400, Uruguay; (N.E.); (F.G.); (M.S.); (J.C.); (G.M.)
- Laboratorio de Evolución Experimental de Virus, Institut Pasteur de Montevideo, Montevideo 11400, Uruguay
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Dohner E, Kierdorf F, Moreno P, Langer R, Zuber M, Fahrner R. Neurogenic appendicopathy: A rare differential diagnosis of acute appendicitis. J Visc Surg 2024; 161:15-20. [PMID: 36841641 DOI: 10.1016/j.jviscsurg.2023.02.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2023]
Abstract
AIM OF THE STUDY In histologically non-inflamed but clinically suspect appendices, changes described as neurogenic appendicopathy with fibrous or fibrolipomatous obliterations can be observed. The purpose of this study was to analyse the incidence of these entities of the appendix in a longitudinal patient cohort. PATIENTS AND METHODS This is a retrospective single-centre study of 457 patients undergoing laparoscopic appendectomy from 2017 to 2020 due to suspected acute appendicitis. RESULTS In 72 patients (15.8%) with clinically suspected acute appendicitis, the appendix showed no distinct signs of acute inflammation during the procedure. In 43 patients, histological analysis revealed neurogenic appendicopathy or fibrous and fibrolipomatous obliteration. Female gender (P=0.088), younger age (P<0.0001), longer pain duration (P<0.0001) and repetitive pain episodes were more frequent in these patients than in those with acute appendicitis. Inflammation markers were also decreased in the group of patients with neurogenic appendicopathy (leukocytes 9.8±3.5 vs. 13.0±4.5 G/L and C-reactive protein 38.7±60.7 vs. 59.4±70.5mg/L). CONCLUSION Neurogenic appendicopathy with fibrous/fibrolipomatous obliteration is a differential diagnosis of acute appendicitis that can only be confirmed by pathology. Female gender, young age, prolonged duration with repetitive episodes of pain, and relatively low inflammatory markers are evocative of this diagnosis.
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Affiliation(s)
- E Dohner
- Department of Surgery, Bürgerspital Solothurn, Solothurn, Switzerland
| | - F Kierdorf
- Department of Surgery, Bürgerspital Solothurn, Solothurn, Switzerland
| | - P Moreno
- Department of Surgery, Bürgerspital Solothurn, Solothurn, Switzerland
| | - R Langer
- Institute of Pathology and Molecular Pathology, Kepler University Hospital and Johannes Kepler University, Linz, Austria
| | - M Zuber
- Department of Surgery, Bürgerspital Solothurn, Solothurn, Switzerland; Clarunis University Center for Gastrointestinal and Liver Diseases, Saint-Clara Hospital Basel and University Hospital Basel, Basel, Switzerland
| | - R Fahrner
- Department of Surgery, Bürgerspital Solothurn, Solothurn, Switzerland; Department of Surgery, Hospital Thun, Thun, Switzerland.
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Rojop N, Moreno P, Grajeda L, Romero J, Reynoso L, Muñoz E, Palmer GH, Cordón-Rosales C, Call DR, Ramay BM. Informal sale of antibiotics in Guatemalan convenience stores before and after implementation of federal antibiotic dispensing legislation. BMC Pharmacol Toxicol 2024; 25:11. [PMID: 38273410 PMCID: PMC10809560 DOI: 10.1186/s40360-023-00720-8] [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: 10/03/2022] [Accepted: 12/05/2023] [Indexed: 01/27/2024] Open
Abstract
BACKGROUND Convenience stores in Guatemala provide essential consumer goods in communities, but many dispense antibiotics illegally. Federal legislation, passed in August of 2019, requires prescriptions for antibiotic purchase at pharmacies but it is unclear if this legislation is enforced or if it has any impact on unlawful sales of antibiotics. METHODS To determine if antibiotic availability changed in convenience stores, we carried out a repeated measures study collecting antibiotic availability data before and after implementation of the dispensing regulation. RESULTS There was no statistical difference in the proportion of convenience stores that sold antibiotics before and after antibiotic regulations [66.6% (295/443) and 66.7% (323/484), respectively, P>0.96], nor in the number of stores selling amoxicillin [55.5% (246/443) and 52.3% (253/484), respectively, P>0.96], but fewer stores (20%) sold tetracycline capsules after regulation was passed (P<0.05). For stores visited both before and after passage of legislation (n=157), 15% stopped selling antibiotics while 25% started selling antibiotics. Antibiotics from convenience stores were reportedly sold for use in people and animals. CONCLUSIONS Antibiotics remain widely available in convenience stores consistent with no significant change in the informal sector after implementation of prescription requirements for pharmacies. Importantly, effects from regulatory change could have been masked by potential changes in antibiotic use during the Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) pandemic.
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Affiliation(s)
- N Rojop
- Department of Epidemiology, School of Sciences and Humanities, Universidad del Valle de Guatemala, Guatemala City, Guatemala
| | - P Moreno
- Center for Health Studies, Universidad del Valle de Guatemala, Guatemala City, Guatemala
- Department of Pharmaceutical Chemistry, School of Sciences and Humanities, Universidad del Valle de Guatemala, Guatemala City, Guatemala
| | - L Grajeda
- Department of Epidemiology, School of Sciences and Humanities, Universidad del Valle de Guatemala, Guatemala City, Guatemala
- Center for Health Studies, Universidad del Valle de Guatemala, Guatemala City, Guatemala
| | - J Romero
- Center for Health Studies, Universidad del Valle de Guatemala, Guatemala City, Guatemala
| | - L Reynoso
- Department of Pharmaceutical Chemistry, School of Sciences and Humanities, Universidad del Valle de Guatemala, Guatemala City, Guatemala
| | - E Muñoz
- Department of Pharmaceutical Chemistry, School of Sciences and Humanities, Universidad del Valle de Guatemala, Guatemala City, Guatemala
| | - G H Palmer
- Paul G. Allen School for Global Health, Washington State University, Pullman, WA, United States of America
| | - C Cordón-Rosales
- Center for Health Studies, Universidad del Valle de Guatemala, Guatemala City, Guatemala
- Paul G. Allen School for Global Health, Washington State University, Pullman, WA, United States of America
| | - D R Call
- Paul G. Allen School for Global Health, Washington State University, Pullman, WA, United States of America
| | - B M Ramay
- Center for Health Studies, Universidad del Valle de Guatemala, Guatemala City, Guatemala.
- Department of Pharmaceutical Chemistry, School of Sciences and Humanities, Universidad del Valle de Guatemala, Guatemala City, Guatemala.
- Paul G. Allen School for Global Health, Washington State University, Pullman, WA, United States of America.
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Ríos A, Ruiz-Pardo J, Balaguer-Román A, Puñal JA, Moreno P, Mercader E, Ferrero E, Morlán MA, Martín J, Durán M, Bravo JM, Casanova D, Salvador-Egea MP, Torregrosa NM, Exposito-Rodríguez A, Martínez-Fernández G, Carrión AM, Vidal O, Herrera F, Ruiz-Merino G, Rodríguez JM. Is unicentric familial papillary thyroid microcarcinoma different from multicentric? Endocrine 2023; 82:613-621. [PMID: 37490266 DOI: 10.1007/s12020-023-03455-y] [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: 02/22/2023] [Accepted: 07/13/2023] [Indexed: 07/26/2023]
Abstract
BACKGROUND Familial papillary thyroid microcarcinoma (FPTMC) appears to be more aggressive than sporadic papillary thyroid microcarcinoma (SPTMC). However, there are authors who indicate that unicentric FPTMC has a similar prognosis to SPTMC. The objective is to analyze whether unicentric FPTMC has a better prognosis than multicentric FPTMC. DESIGN AND METHODS Type of study: National multicenter longitudinal analytical observational study. STUDY POPULATION Patients with FPTMC. STUDY GROUPS Two groups were compared: Group A (unicentric FPTMC) vs. Group B (multicentric FPTMC). STUDY VARIABLES It is analyzed whether between the groups there are: a) differentiating characteristics; and b) prognostic differences. STATISTICAL ANALYSIS Cox regression analysis and survival analysis. RESULTS Ninety-four patients were included, 44% (n = 41) with unicentric FPTMC and 56% (n = 53) with multicentric FPTMC. No differences were observed between the groups according to socio-familial, clinical or histological variables. In the group B a more aggressive treatment was performed, with higher frequency of total thyroidectomy (99 vs. 78%; p = 0.003), lymph node dissection (41 vs. 15%; p = 0.005) and therapy with radioactive iodine (96 vs. 73%; p = 0.002). Tumor stage was similar in both groups (p = 0.237), with a higher number of T3 cases in the group B (24 vs. 5%; p = 0.009). After a mean follow-up of 90 ± 68.95 months, the oncological results were similar, with a similar disease persistence rate (9 vs. 5%; p = 0.337), disease recurrence rate (21 vs. 8%; p = 0.159) and disease-free survival (p = 0.075). CONCLUSIONS Unicentric FPTMC should not be considered as a SPTMC due to its prognosis is similar to multicentric FPTMC.
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Affiliation(s)
- A Ríos
- Unidad de Cirugía Endocrina. Servicio de Cirugía General y de Aparato Digestivo. Instituto Murciano de Investigación Bio-Sanitaria (IMIB-Arrixaca). Hospital Clínico Universitario Virgen de la Arrixaca, Servicio Murciano de Salud, Murcia, Spain.
- Departamento de Cirugía, Pediatría y Obstetricia, y Ginecología, Universidad de Murcia, Murcia, Spain.
| | - J Ruiz-Pardo
- Servicio de Cirugía General y del Aparato Digestivo, Hospital Universitario Torrecardenas, Almería, Spain
| | - A Balaguer-Román
- Unidad de Cirugía Endocrina. Servicio de Cirugía General y de Aparato Digestivo. Instituto Murciano de Investigación Bio-Sanitaria (IMIB-Arrixaca). Hospital Clínico Universitario Virgen de la Arrixaca, Servicio Murciano de Salud, Murcia, Spain
- Departamento de Cirugía, Pediatría y Obstetricia, y Ginecología, Universidad de Murcia, Murcia, Spain
| | - J A Puñal
- Servicio de Cirugía General y Aparato Digestivo. C.H.U, Santiago de Compostela, Spain
| | - P Moreno
- Cirugía Endocrina, Hospital Universitario de Bellvitge. L´Hospitalet de Llobregat, Barcelona, Spain
| | - E Mercader
- Sección de Cirugía Endocrino-Metabólica, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - E Ferrero
- Servicio de Cirugía General, Aparato Digestivo y Trasplante de Órganos Abdominales, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - M A Morlán
- Servicio de Cirugía General y del Aparato Digestivo, Hospital Virgen de la Salud, Toledo, Spain
| | - J Martín
- Servicio de Cirugía General y Aparato digestivo, Hospital Universitario Severo Ochoa. Leganés, Madrid, Spain
| | - M Durán
- Servicio de Cirugía General y del Aparato Digestivo, Hospital Universitario Rey Juan Carlos. Móstoles, Madrid, Spain
- Facultad de Ciencias de la Salud, Universidad Rey Juan Carlos. Alcorcón, Madrid, Spain
| | - J M Bravo
- Servicio de Cirugía General y del Aparato Digestivo, Hospital de la Princesa, Madrid, Spain
| | - D Casanova
- Servicio de Cirugía General y del Aparato Digestivo, Hospital Universitario Marqués de Valdecilla, Santander, Spain
| | - M P Salvador-Egea
- Servicio de Cirugía General y Digestiva, Complejo Hospitalario de Pamplona. Pamplona, Navarra, Spain
| | - N M Torregrosa
- Servicio de Cirugía General y del Aparato Digestivo, Hospital de Santa Lucia, Cartagena, Murcia, España
| | - A Exposito-Rodríguez
- Servicio de Cirugía General y del Aparato Digestivo, Hospital de Basurto, Vizcaya, España
| | - G Martínez-Fernández
- Unidad de Cirugía Endocrina, Servicio de Cirugía General (Hospital Universitario de Cruces), Barakaldo (Bizkaia), Spain
| | - A M Carrión
- Servicio de Cirugía, Hospital General Universitario de Alicante, Alicante, Spain
| | - O Vidal
- Cirugía General y del Aparato Digestivo, Hospital Universitario de Burgos, Burgos, Spain
| | - F Herrera
- Servicio de Cirugía General, Hospital General Básico Santa Ana, Motril (Granada), Spain
| | - G Ruiz-Merino
- FFIS, Fundación para la Formación e Investigación Sanitarias de la Región de Murcia, Murcia, España
| | - J M Rodríguez
- Unidad de Cirugía Endocrina. Servicio de Cirugía General y de Aparato Digestivo. Instituto Murciano de Investigación Bio-Sanitaria (IMIB-Arrixaca). Hospital Clínico Universitario Virgen de la Arrixaca, Servicio Murciano de Salud, Murcia, Spain
- Departamento de Cirugía, Pediatría y Obstetricia, y Ginecología, Universidad de Murcia, Murcia, Spain
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Aldunate F, Fajardo A, Ibañez N, Rammauro F, Daghero H, Arce R, Ferla D, Pereira-Gomez M, Salazar C, Iraola G, Pritsch O, Hurtado J, Tenzi J, Bollati-Fogolín M, Bianchi S, Nin N, Moratorio G, Moreno P. What have we learned from a case of convalescent plasma treatment in a two-time kidney transplant recipient COVID-19 patient? A case report from the perspective of viral load evolution and immune response. Front Nephrol 2023; 3:1132763. [PMID: 37675346 PMCID: PMC10479756 DOI: 10.3389/fneph.2023.1132763] [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] [Received: 12/27/2022] [Accepted: 06/05/2023] [Indexed: 09/08/2023]
Abstract
Coronavirus disease 2019 (COVID-19), an infectious disease caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) virus, can have a wide range of clinical manifestations, ranging from asymptomatic disease to potentially life-threatening complications. Convalescent plasma therapy has been proposed as an effective alternative for the treatment of severe cases. The aim of this study was to follow a two-time renal transplant patient with severe COVID-19 treated with convalescent plasma over time from an immunologic and virologic perspective. A 42-year-old female patient, who was a two-time kidney transplant recipient, was hospitalized with COVID-19. Due to worsening respiratory symptoms, she was admitted to the intensive care unit, where she received two doses of convalescent plasma. We analyzed the dynamics of viral load in nasopharyngeal swab, saliva, and tracheal aspirate samples, before and after convalescent plasma transfusion. The levels of pro-inflammatory cytokines and antibody titers were also measured in serum samples. A significant decrease in viral load was observed after treatment in the saliva and nasopharyngeal swab samples, and a slight decrease was observed in tracheal aspirate samples. In addition, we found evidence of an increase in antibody titers after transfusion, accompanied by a decrease in the levels of several cytokines responsible for cytokine storm.
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Affiliation(s)
- Fabian Aldunate
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay
- Laboratorio de Evolución Experimental de Virus, Institut Pasteur Montevideo, Montevideo, Uruguay
| | - Alvaro Fajardo
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay
- Laboratorio de Evolución Experimental de Virus, Institut Pasteur Montevideo, Montevideo, Uruguay
| | - Natalia Ibañez
- Laboratorio de Inmunovirología, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Florencia Rammauro
- Laboratorio de Inmunovirología, Institut Pasteur de Montevideo, Montevideo, Uruguay
- Departamento de Inmunobiología, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay
| | - Hellen Daghero
- Cell Biology Unit, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Rodrigo Arce
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay
- Laboratorio de Evolución Experimental de Virus, Institut Pasteur Montevideo, Montevideo, Uruguay
| | - Diego Ferla
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay
- Laboratorio de Evolución Experimental de Virus, Institut Pasteur Montevideo, Montevideo, Uruguay
| | - Marianoel Pereira-Gomez
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay
- Laboratorio de Evolución Experimental de Virus, Institut Pasteur Montevideo, Montevideo, Uruguay
| | - Cecilia Salazar
- Laboratorio de Genómica Microbiana, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Gregorio Iraola
- Laboratorio de Genómica Microbiana, Institut Pasteur de Montevideo, Montevideo, Uruguay
- Host-Microbiota Interactions Laboratory, Wellcome Sanger Institute, Hinxton, United Kingdom
| | - Otto Pritsch
- Laboratorio de Inmunovirología, Institut Pasteur de Montevideo, Montevideo, Uruguay
- Departamento de Inmunobiología, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay
| | - Javier Hurtado
- Unidad de Cuidados Intensivos, Hospital Español “Juan José Crottoggini”, Administración de Servicios de Salud del Estado, Montevideo, Uruguay
| | - Jordan Tenzi
- Unidad de Cuidados Intensivos, Hospital Español “Juan José Crottoggini”, Administración de Servicios de Salud del Estado, Montevideo, Uruguay
| | | | - Sergio Bianchi
- Laboratorio de Biomarcadores Moleculares, Departamento de Fisiopatología, Hospital de Clínicas, Universidad de la República, Montevideo, Uruguay
- Laboratorio de Genómica Funcional, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Nicolas Nin
- Unidad de Cuidados Intensivos, Hospital Español “Juan José Crottoggini”, Administración de Servicios de Salud del Estado, Montevideo, Uruguay
| | - Gonzalo Moratorio
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay
- Laboratorio de Evolución Experimental de Virus, Institut Pasteur Montevideo, Montevideo, Uruguay
| | - Pilar Moreno
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay
- Laboratorio de Evolución Experimental de Virus, Institut Pasteur Montevideo, Montevideo, Uruguay
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Salazar C, Ferrés I, Paz M, Costábile A, Moratorio G, Moreno P, Iraola G. Fast and cost-effective SARS-CoV-2 variant detection using Oxford Nanopore full-length spike gene sequencing. Microb Genom 2023; 9. [PMID: 37200071 DOI: 10.1099/mgen.0.001013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/19/2023] Open
Abstract
Most biologically relevant and diagnostic mutations in the severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) genome have been identified in the S gene through global genomic surveillance efforts. However, large-scale whole-genome sequencing (WGS) is still challenging in developing countries due to higher costs, reagent delays and limited infrastructure. Consequently, only a small fraction of SARS-CoV-2 samples are characterized through WGS in these regions. Here, we present a complete workflow consisting of a fast library preparation protocol based on tiled amplification of the S gene, followed by a PCR barcoding step and sequencing using Nanopore platforms. This protocol facilitates fast and cost-effective identification of main variants of concern and mutational surveillance of the S gene. By applying this protocol, report time and overall costs for SARS-CoV-2 variant detection could be reduced, contributing to improved genomic surveillance programmes, particularly in low-income regions.
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Affiliation(s)
- Cecilia Salazar
- Laboratorio de Genómica Microbiana, Institut Pasteur de Montevideo, Montevideo, Uruguay
- Centro de Innovación en Vigilancia Epidemiológica, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Ignacio Ferrés
- Laboratorio de Genómica Microbiana, Institut Pasteur de Montevideo, Montevideo, Uruguay
- Centro de Innovación en Vigilancia Epidemiológica, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Mercedes Paz
- Centro de Innovación en Vigilancia Epidemiológica, Institut Pasteur de Montevideo, Montevideo, Uruguay
- Laboratorio de Evolución Experimental de Virus, Institut Pasteur de Montevideo, Montevideo, Uruguay
- Laboratorio de Virología Molecular, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay
| | - Alicia Costábile
- Centro de Innovación en Vigilancia Epidemiológica, Institut Pasteur de Montevideo, Montevideo, Uruguay
- Laboratorio de Evolución Experimental de Virus, Institut Pasteur de Montevideo, Montevideo, Uruguay
- Laboratorio de Virología Molecular, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay
- Sección Bioquímica, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay
| | - Gonzalo Moratorio
- Centro de Innovación en Vigilancia Epidemiológica, Institut Pasteur de Montevideo, Montevideo, Uruguay
- Laboratorio de Evolución Experimental de Virus, Institut Pasteur de Montevideo, Montevideo, Uruguay
- Laboratorio de Virología Molecular, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay
| | - Pilar Moreno
- Centro de Innovación en Vigilancia Epidemiológica, Institut Pasteur de Montevideo, Montevideo, Uruguay
- Laboratorio de Evolución Experimental de Virus, Institut Pasteur de Montevideo, Montevideo, Uruguay
- Laboratorio de Virología Molecular, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay
| | - Gregorio Iraola
- Laboratorio de Genómica Microbiana, Institut Pasteur de Montevideo, Montevideo, Uruguay
- Centro de Innovación en Vigilancia Epidemiológica, Institut Pasteur de Montevideo, Montevideo, Uruguay
- Wellcome Sanger Institute, Hinxton, UK
- Centro de Biología Integrativa, Universidad Mayor, Santiago de Chile, Chile
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Paz M, Moreno P, Moratorio G. Perspective Chapter: Real-Time Genomic Surveillance for SARS-CoV-2 on Center Stage. Infect Dis (Lond) 2023. [DOI: 10.5772/intechopen.107842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/30/2023] Open
Abstract
The course of the COVID-19 pandemic depends not only on how the SARS-CoV-2 virus mutates but on the actions taken to respond to it. Important public health decisions can only be taken if we know viral dynamics, viral variants distribution, and whether new variants are emerging that may be more transmissible or/and more virulent, displaying evasion to vaccines or antiviral treatments. This situation has put the use of different approaches, such as molecular techniques and real-time genomic sequencing, to support public health decision-making on center stage. To achieve this, robust programs based on: (i) diagnostic capacity; (ii) high-throughput sequencing technologies; and (iii) high-performance bioinformatic resources, need to be established. This chapter focuses on how SARS-CoV-2 evolved since its discovery and it summarizes the scientific efforts to obtain genomic data as the virus spread throughout the globe.
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Pereira-Gómez M, Arce R, Ferla D, Simón D, Salazar C, Perbolianachis P, Costábile A, Fajardo A, Aldunate F, Nin N, Hurtado J, Iraola G, Moreno P, Moratorio G. One-year monitoring SARS-CoV-2 RNA surface contamination in hospitals reveals no correlation with organic material and negative pressure as a limiting factor for contamination. Heliyon 2023; 9:e13875. [PMID: 36845037 PMCID: PMC9938536 DOI: 10.1016/j.heliyon.2023.e13875] [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: 07/06/2022] [Revised: 02/14/2023] [Accepted: 02/14/2023] [Indexed: 02/22/2023] Open
Abstract
Understanding transmission routes of SARS-CoV-2 is crucial to establish effective interventions in healthcare institutions. Although the role of surface contamination in SARS-CoV-2 transmission has been controversial, fomites have been proposed as a contributing factor. Longitudinal studies about SARS-CoV-2 surface contamination in hospitals with different infrastructure (presence or absence of negative pressure systems) are needed to improve our understanding of their effectiveness on patient healthcare and to advance our knowledge about the viral spread. We performed a one-year longitudinal study to evaluate surface contamination with SARS-CoV-2 RNA in reference hospitals. These hospitals have to admit all COVID-19 patients from public health services that require hospitalization. Surfaces samples were molecular tested for SARS-CoV-2 RNA presence considering three factors: the dirtiness by measuring organic material, the circulation of a high transmissibility variant, and the presence or absence of negative pressure systems in hospitalized patients' rooms. Our results show that: (i) There is no correlation between the amount of organic material dirtiness and SARS-CoV-2 RNA detected on surfaces; (ii) SARS-CoV-2 high transmissible Gamma variant introduction significantly increased surface contamination; (iii) the hospital with negative pressure systems was associated with lower levels of SARS-CoV-2 surface contamination and, iv) most environmental samples recovered from contaminated surfaces were assigned as non-infectious. This study provides data gathered for one year about the surface contamination with SARS-CoV-2 RNA sampling hospital settings. Our results suggest that spatial dynamics of SARS-CoV-2 RNA contamination varies according with the type of SARS-CoV-2 genetic variant and the presence of negative pressure systems. In addition, we showed that there is no correlation between the amount of organic material dirtiness and the quantity of viral RNA detected in hospital settings. Our findings suggest that SARS CoV-2 RNA surface contamination monitoring might be useful for the understanding of SARS-CoV-2 dissemination with impact on hospital management and public health policies. This is of special relevance for the Latin-American region where ICU rooms with negative pressure are insufficient.
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Affiliation(s)
- Marianoel Pereira-Gómez
- Laboratorio de Evolución Experimental de Virus, Institut Pasteur de Montevideo, Uruguay,Laboratorio de Virología Molecular, Facultad de Ciencias, Universidad de la República, Uruguay
| | - Rodrigo Arce
- Laboratorio de Evolución Experimental de Virus, Institut Pasteur de Montevideo, Uruguay,Laboratorio de Virología Molecular, Facultad de Ciencias, Universidad de la República, Uruguay
| | - Diego Ferla
- Laboratorio de Evolución Experimental de Virus, Institut Pasteur de Montevideo, Uruguay,Laboratorio de Virología Molecular, Facultad de Ciencias, Universidad de la República, Uruguay
| | - Diego Simón
- Laboratorio de Evolución Experimental de Virus, Institut Pasteur de Montevideo, Uruguay,Laboratorio de Virología Molecular, Facultad de Ciencias, Universidad de la República, Uruguay
| | - Cecilia Salazar
- Laboratorio de Genómica Microbiana, Institut Pasteur de Montevideo, Uruguay,Centro de Innovación en Vigilancia Epidemiológica, Institut Pasteur de Montevideo, Uruguay
| | - Paula Perbolianachis
- Laboratorio de Evolución Experimental de Virus, Institut Pasteur de Montevideo, Uruguay,Laboratorio de Virología Molecular, Facultad de Ciencias, Universidad de la República, Uruguay
| | - Alicia Costábile
- Laboratorio de Evolución Experimental de Virus, Institut Pasteur de Montevideo, Uruguay,Laboratorio de Virología Molecular, Facultad de Ciencias, Universidad de la República, Uruguay,Centro de Innovación en Vigilancia Epidemiológica, Institut Pasteur de Montevideo, Uruguay,Sección Bioquímica, Facultad de Ciencias, Universidad de la República, Uruguay
| | - Alvaro Fajardo
- Laboratorio de Evolución Experimental de Virus, Institut Pasteur de Montevideo, Uruguay,Laboratorio de Virología Molecular, Facultad de Ciencias, Universidad de la República, Uruguay
| | - Fabián Aldunate
- Laboratorio de Evolución Experimental de Virus, Institut Pasteur de Montevideo, Uruguay,Laboratorio de Virología Molecular, Facultad de Ciencias, Universidad de la República, Uruguay
| | - Nicolás Nin
- Unidad de Cuidados Intensivos, Hospital Español “Juan José Crottoggini”, Administración de Servicios de Salud del Estado, Uruguay
| | - Javier Hurtado
- Unidad de Cuidados Intensivos, Hospital Español “Juan José Crottoggini”, Administración de Servicios de Salud del Estado, Uruguay
| | - Gregorio Iraola
- Laboratorio de Genómica Microbiana, Institut Pasteur de Montevideo, Uruguay,Centro de Innovación en Vigilancia Epidemiológica, Institut Pasteur de Montevideo, Uruguay
| | - Pilar Moreno
- Laboratorio de Evolución Experimental de Virus, Institut Pasteur de Montevideo, Uruguay,Laboratorio de Virología Molecular, Facultad de Ciencias, Universidad de la República, Uruguay,Centro de Innovación en Vigilancia Epidemiológica, Institut Pasteur de Montevideo, Uruguay,Corresponding author.Laboratorio de Evolución Experimental de Virus, Institut Pasteur de Montevideo, Uruguay
| | - Gonzalo Moratorio
- Laboratorio de Evolución Experimental de Virus, Institut Pasteur de Montevideo, Uruguay,Laboratorio de Virología Molecular, Facultad de Ciencias, Universidad de la República, Uruguay,Centro de Innovación en Vigilancia Epidemiológica, Institut Pasteur de Montevideo, Uruguay,Corresponding author.Laboratorio de Evolución Experimental de Virus, Institut Pasteur de Montevideo, Uruguay
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9
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Ríos A, Rodríguez MA, Puñal JA, Moreno P, Mercader E, Ferrero E, Ruiz-Pardo J, Morlán MA, Martín J, Durán-Poveda M, Bravo JM, Casanova D, Egea MPS, Torregrosa NM, Exposito-Rodríguez A, Martínez-Fernández G, Carrión AM, Vidal O, Herrera F, Ruiz-Merino G, Rodríguez JM. Biological behavior of familial papillary thyroid microcarcinoma: Spanish multicenter study. Langenbecks Arch Surg 2022; 407:3631-3642. [PMID: 36251077 DOI: 10.1007/s00423-022-02704-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Accepted: 10/05/2022] [Indexed: 10/24/2022]
Abstract
PURPOSE Familial papillary thyroid microcarcinoma (FPTMC) can present a more aggressive behavior than the sporadic microcarcinoma. However, few studies have analyzed this situation. The objective is to analyze the recurrence rate of FPTMC and the prognostic factors which determine that recurrence in Spain. METHODS Spanish multicenter longitudinal analytical observational study was conducted. Patients with FPTMC received treatment with curative intent and presented cure criteria 6 months after treatment. Recurrence rate and disease-free survival (DFS) were analyzed. Two groups were analyzed: group A (no tumor recurrence) vs. group B (tumor recurrence). RESULTS Ninety-four patients were analyzed. During a mean follow-up of 73.3 ± 59.3 months, 13 recurrences of FPTMC (13.83%) were detected and mean DFS was 207.9 ± 11.5 months. There were multifocality in 56%, bilateral thyroid involvement in 30%, and vascular invasion in 7.5%; that is to say, they are tumors with histological factors of poor prognosis in a high percentage of cases. The main risk factors for recurrence obtained in the multivariate analysis were the tumor size (OR: 2.574, 95% CI 1.210-5.473; p = 0.014) and the assessment of the risk of recurrence of the American Thyroid Association (ATA), both intermediate risk versus low risk (OR: 125, 95% CI 10.638-1000; p < 0.001) and high risk versus low risk (OR: 45.454, 95% CI 5.405-333.333; p < 0.001). CONCLUSION FPTMC has a recurrence rate higher than sporadic cases. Poor prognosis is mainly associated with the tumor size and the risk of recurrence of the ATA.
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Affiliation(s)
- A Ríos
- Unidad de Cirugía Endocrina, Servicio de Cirugía General Y de Aparato Digestivo, Instituto Murciano de Investigación Bio-Sanitaria (IMIB-Arrixaca), Hospital Clínico Universitario Virgen de La Arrixaca, Servicio Murciano de Salud, Murcia, Spain. .,Departamento de Cirugía, Pediatría Obstetricia, Y Ginecología, Universidad de Murcia, Murcia, Spain.
| | - M A Rodríguez
- Departamento de Cirugía, Pediatría Obstetricia, Y Ginecología, Universidad de Murcia, Murcia, Spain
| | - J A Puñal
- Servicio de Cirugía General Y Aparato Digestivo, C.H.U, Santiago de Compostela, Spain
| | - P Moreno
- Cirugía Endocrina, Hospital Universitario de Bellvitge, L´Hospitalet de Llobregat, Barcelona, Spain
| | - E Mercader
- Sección de Cirugía Endocrino-Metabólica, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - E Ferrero
- Servicio de Cirugía General, Aparato Digestivo Y Trasplante de Órganos Abdominales, Hospital Universitario, 12 de Octubre, Madrid, Spain
| | - J Ruiz-Pardo
- Servicio de Cirugía General Y del Aparato Digestivo, Hospital Universitario Torrecárdenas, Almeria, Spain
| | - M A Morlán
- Servicio de Cirugía General Y del Aparato Digestivo, Hospital Virgen de La Salud, Toledo, Spain
| | - J Martín
- Servicio de Cirugía General Y Aparato Digestivo, Hospital Universitario Severo Ochoa, Leganés, Madrid, Spain
| | - M Durán-Poveda
- Servicio de Cirugía General Y del Aparato Digestivo, Hospital Universitario Rey Juan Carlos. Móstoles, Madrid, Spain.,Facultad de Ciencias de La Salud, Universidad Rey Juan Carlos, Alcorcón, Madrid, Spain
| | - J M Bravo
- Servicio de Cirugía General Y del Aparato Digestivo, Hospital de La Princesa, Madrid, Spain
| | - D Casanova
- Servicio de Cirugía General Y del Aparato Digestivo, Hospital Universitario Marqués de Valdecilla, Santander, Spain
| | - M P Salvador Egea
- Servicio de Cirugía General Y Digestiva, Complejo Hospitalario de Navarra, Pamplona, Spain
| | - N M Torregrosa
- Servicio de Cirugía General Y del Aparato Digestivo, Hospital de Santa Lucia, Cartagena, Murcia, Spain
| | - A Exposito-Rodríguez
- Servicio de Cirugía General Y del Aparato Digestivo, Hospital de Basurto, Bizkaia, Spain
| | - G Martínez-Fernández
- Unidad de Cirugía Endocrina, Servicio de Cirugía General (Hospital Universitario de Cruces), Barakaldo, Bizkaia, Spain
| | - A M Carrión
- Servicio de Cirugía, Hospital General Universitario de Alicante, Alicante, Spain
| | - O Vidal
- Cirugía General Y del Aparato Digestivo, Hospital Universitario de Burgos, Burgos, Spain
| | - F Herrera
- Servicio de Cirugía General, Hospital General Básico Santa Ana, Motril, Granada, Spain
| | - G Ruiz-Merino
- FFIS, Fundación Para La Formación E Investigación Sanitarias de La Región de Murcia, Murcia, Spain
| | - J M Rodríguez
- Unidad de Cirugía Endocrina, Servicio de Cirugía General Y de Aparato Digestivo, Instituto Murciano de Investigación Bio-Sanitaria (IMIB-Arrixaca), Hospital Clínico Universitario Virgen de La Arrixaca, Servicio Murciano de Salud, Murcia, Spain.,Departamento de Cirugía, Pediatría Obstetricia, Y Ginecología, Universidad de Murcia, Murcia, Spain
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10
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Fajardo Á, Perbolianachis P, Ferreiro I, Moreno P, Moratorio G. Molecular accuracy vs antigenic speed: SARS-CoV-2 testing strategies. Curr Opin Pharmacol 2022; 62:152-158. [PMID: 35042168 PMCID: PMC8687762 DOI: 10.1016/j.coph.2021.12.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 12/06/2021] [Accepted: 12/13/2021] [Indexed: 01/08/2023]
Abstract
The pandemic caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has hit every corner of the world faster than any infectious disease ever known. In this context, rapid and accurate testing of positive cases are essential to follow the test-trace-isolate strategy (TETRIS), which has proven to be a key approach to constrain viral spread. Here, we discuss how to interpret and combine molecular or/and antigen-based detection methods for SARS-CoV-2 as well as when they should be used. Their application can be cleverly designed as an algorithm to prevent viral dissemination according to distinct epidemiological contexts within surveillance programs.
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Affiliation(s)
- Álvaro Fajardo
- Laboratorio de Evolución Experimental de Virus, Institut Pasteur, Montevideo, Uruguay; Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay
| | - Paula Perbolianachis
- Laboratorio de Evolución Experimental de Virus, Institut Pasteur, Montevideo, Uruguay; Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay
| | - Irene Ferreiro
- Laboratorio de Evolución Experimental de Virus, Institut Pasteur, Montevideo, Uruguay; Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay
| | - Pilar Moreno
- Laboratorio de Evolución Experimental de Virus, Institut Pasteur, Montevideo, Uruguay; Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay.
| | - Gonzalo Moratorio
- Laboratorio de Evolución Experimental de Virus, Institut Pasteur, Montevideo, Uruguay; Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay.
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11
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Perbolianachis P, Ferla D, Arce R, Ferreiro I, Costábile A, Paz M, Simón D, Moreno P, Cristina J. Phylogenetic analysis of SARS-CoV-2 viruses circulating in the South American region: genetic relations and vaccine strain match. Virus Res 2022; 311:198688. [PMID: 35074431 PMCID: PMC8779862 DOI: 10.1016/j.virusres.2022.198688] [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] [Received: 10/27/2021] [Revised: 01/19/2022] [Accepted: 01/20/2022] [Indexed: 01/10/2023]
Abstract
The pandemic of coronavirus disease 2019 (COVID-19) is caused by a novel member of the family Coronaviridae, now known as severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Recent studies revealed the emergence of virus variants with substitutions in the spike and/or nucleocapsid and RNA-dependent RNA polymerase proteins that are partly responsible for enhanced transmission and reduced or escaped anti-SARS-CoV-2 antibodies that may reduce the efficacy of antibodies and vaccines against the first identified SARS-CoV-2 strains. In order to gain insight into the emergence and evolution of SARS-CoV-2 variants circulating in the South American region, a comprehensive phylogenetic study of SARS-CoV-2 variants circulating in this region was performed. The results of these studies revealed sharp increase in virus effective population size from March to April of 2020. At least 62 different genotypes were found to circulate in this region. Variants of concern (VOCs) Alpha, Beta, Gamma and Delta co-circulate in the region, together with variants of interest (VOIs) Lambda, Mu and Zeta. Most of SARS-CoV-2 variants circulating in the South American region belongs to B.1 genotypes and have substitutions in the spike and/or nucleocapsid and polymerase proteins that confer high transmissibility and/or immune resistance. 148 amino acid positions of the spike protein and 70 positions of the nucleocapsid were found to have substitutions in different variants isolated in the region by comparison with reference strain Wuhan-Hu-1. Significant differences in codon usage among spike genes of SARS-CoV-2 strains circulating in South America was found, which can be linked to SARS-CoV-2 genotypes.
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Affiliation(s)
- Paula Perbolianachis
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Iguá 4225, Montevideo 11400, Uruguay
| | - Diego Ferla
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Iguá 4225, Montevideo 11400, Uruguay
| | - Rodrigo Arce
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Iguá 4225, Montevideo 11400, Uruguay
| | - Irene Ferreiro
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Iguá 4225, Montevideo 11400, Uruguay
| | - Alicia Costábile
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Iguá 4225, Montevideo 11400, Uruguay
| | - Mercedes Paz
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Iguá 4225, Montevideo 11400, Uruguay
| | - Diego Simón
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Iguá 4225, Montevideo 11400, Uruguay
| | - Pilar Moreno
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Iguá 4225, Montevideo 11400, Uruguay
| | - Juan Cristina
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Iguá 4225, Montevideo 11400, Uruguay.
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12
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Echeverría N, Comas V, Aldunate F, Perbolianachis P, Moreno P, Cristina J. In the era of rapid mRNA-based vaccines: Why is there no effective hepatitis C virus vaccine yet? World J Hepatol 2021; 13:1234-1268. [PMID: 34786164 PMCID: PMC8568586 DOI: 10.4254/wjh.v13.i10.1234] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 05/14/2021] [Accepted: 09/10/2021] [Indexed: 02/06/2023] Open
Abstract
Hepatitis C virus (HCV) is responsible for no less than 71 million people chronically infected and is one of the most frequent indications for liver transplantation worldwide. Despite direct-acting antiviral therapies fuel optimism in controlling HCV infections, there are several obstacles regarding treatment accessibility and reinfection continues to remain a possibility. Indeed, the majority of new HCV infections in developed countries occur in people who inject drugs and are more plausible to get reinfected. To achieve global epidemic control of this virus the development of an effective prophylactic or therapeutic vaccine becomes a must. The coronavirus disease 19 (COVID-19) pandemic led to auspicious vaccine development against severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) virus, which has renewed interest on fighting HCV epidemic with vaccination. The aim of this review is to highlight the current situation of HCV vaccine candidates designed to prevent and/or to reduce HCV infectious cases and their complications. We will emphasize on some of the crossroads encountered during vaccine development against this insidious virus, together with some key aspects of HCV immunology which have, so far, hampered the progress in this area. The main focus will be on nucleic acid-based as well as recombinant viral vector-based vaccine candidates as the most novel vaccine approaches, some of which have been recently and successfully employed for SARS-CoV-2 vaccines. Finally, some ideas will be presented on which methods to explore for the design of live-attenuated vaccines against HCV.
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Affiliation(s)
- Natalia Echeverría
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Montevideo 11400, Uruguay
| | - Victoria Comas
- Departamento de Desarrollo Biotecnológico, Instituto de Higiene, Facultad de Medicina, Universidad de la República, Montevideo 11600, Uruguay
| | - Fabián Aldunate
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Montevideo 11400, Uruguay
| | - Paula Perbolianachis
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Montevideo 11400, Uruguay
| | - Pilar Moreno
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Montevideo 11400, Uruguay
| | - Juan Cristina
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Montevideo 11400, Uruguay.
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13
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Rego N, Salazar C, Paz M, Costábile A, Fajardo A, Ferrés I, Perbolianachis P, Fernández-Calero T, Noya V, Machado MR, Brandes M, Arce R, Arleo M, Possi T, Reyes N, Bentancor MN, Lizasoain A, Bortagaray V, Moller A, Chappos O, Nin N, Hurtado J, Duquía M, González MB, Griffero L, Méndez M, Techera MP, Zanetti J, Pereira E, Rivera B, Maidana M, Alonso M, Smircich P, Arantes I, Mir D, Alonso C, Medina J, Albornoz H, Colina R, Bello G, Moreno P, Moratorio G, Iraola G, Spangenberg L. Emergence and Spread of a B.1.1.28-Derived P.6 Lineage with Q675H and Q677H Spike Mutations in Uruguay. Viruses 2021; 13:1801. [PMID: 34578382 PMCID: PMC8473254 DOI: 10.3390/v13091801] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 08/20/2021] [Accepted: 08/31/2021] [Indexed: 12/11/2022] Open
Abstract
Uruguay controlled the viral dissemination during the first nine months of the SARS-CoV-2 pandemic. Unfortunately, towards the end of 2020, the number of daily new cases exponentially increased. Herein, we analyzed the country-wide genetic diversity of SARS-CoV-2 between November 2020 and April 2021. We identified that the most prevalent viral variant during the first epidemic wave in Uruguay (December 2020-February 2021) was a B.1.1.28 sublineage carrying Spike mutations Q675H + Q677H, now designated as P.6, followed by lineages P.2 and P.7. P.6 probably arose around November 2020, in Montevideo, Uruguay's capital department, and rapidly spread to other departments, with evidence of further local transmission clusters; it also spread sporadically to the USA and Spain. The more efficient dissemination of lineage P.6 with respect to P.2 and P.7 and the presence of mutations (Q675H and Q677H) in the proximity of the key cleavage site at the S1/S2 boundary suggest that P.6 may be more transmissible than other lineages co-circulating in Uruguay. Although P.6 was replaced by the variant of concern (VOC) P.1 as the predominant lineage in Uruguay since April 2021, the monitoring of the concurrent emergence of Q675H + Q677H in VOCs should be of worldwide interest.
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Affiliation(s)
- Natalia Rego
- Bioinformatics Unit, Institut Pasteur de Montevideo, Montevideo 11400, Uruguay; (N.R.); (T.F.-C.); (M.B.)
| | - Cecilia Salazar
- Laboratorio de Genómica Microbiana, Institut Pasteur Montevideo, Montevideo 11400, Uruguay; (C.S.); (I.F.)
- Centro de Innovación en Vigilancia Epidemiológica, Institut Pasteur Montevideo, Montevideo 11400, Uruguay; (M.P.); (A.C.)
| | - Mercedes Paz
- Centro de Innovación en Vigilancia Epidemiológica, Institut Pasteur Montevideo, Montevideo 11400, Uruguay; (M.P.); (A.C.)
| | - Alicia Costábile
- Centro de Innovación en Vigilancia Epidemiológica, Institut Pasteur Montevideo, Montevideo 11400, Uruguay; (M.P.); (A.C.)
- Laboratorio de Virología Molecular, Facultad de Ciencias, Universidad de la República, Montevideo 11400, Uruguay; (A.F.); (P.P.); (R.A.)
- Laboratorio de Evolución Experimental de Virus, Institut Pasteur de Montevideo, Montevideo 11400, Uruguay
- Sección Bioquímica, Facultad de Ciencias, Universidad de la República, Montevideo 11400, Uruguay
| | - Alvaro Fajardo
- Laboratorio de Virología Molecular, Facultad de Ciencias, Universidad de la República, Montevideo 11400, Uruguay; (A.F.); (P.P.); (R.A.)
- Laboratorio de Evolución Experimental de Virus, Institut Pasteur de Montevideo, Montevideo 11400, Uruguay
| | - Ignacio Ferrés
- Laboratorio de Genómica Microbiana, Institut Pasteur Montevideo, Montevideo 11400, Uruguay; (C.S.); (I.F.)
- Centro de Innovación en Vigilancia Epidemiológica, Institut Pasteur Montevideo, Montevideo 11400, Uruguay; (M.P.); (A.C.)
| | - Paula Perbolianachis
- Laboratorio de Virología Molecular, Facultad de Ciencias, Universidad de la República, Montevideo 11400, Uruguay; (A.F.); (P.P.); (R.A.)
- Laboratorio de Evolución Experimental de Virus, Institut Pasteur de Montevideo, Montevideo 11400, Uruguay
| | - Tamara Fernández-Calero
- Bioinformatics Unit, Institut Pasteur de Montevideo, Montevideo 11400, Uruguay; (N.R.); (T.F.-C.); (M.B.)
- Department of Exact and Natural Sciences, Universidad Católica del Uruguay, Montevideo 11600, Uruguay
| | - Veronica Noya
- Laboratorio de Biología Molecular, Sanatorio Americano, Montevideo 11600, Uruguay; (V.N.); (M.A.); (T.P.); (N.R.); (M.N.B.)
| | - Matias R. Machado
- Protein Engineering, Institut Pasteur de Montevideo, Montevideo 11400, Uruguay;
| | - Mariana Brandes
- Bioinformatics Unit, Institut Pasteur de Montevideo, Montevideo 11400, Uruguay; (N.R.); (T.F.-C.); (M.B.)
| | - Rodrigo Arce
- Laboratorio de Virología Molecular, Facultad de Ciencias, Universidad de la República, Montevideo 11400, Uruguay; (A.F.); (P.P.); (R.A.)
- Laboratorio de Evolución Experimental de Virus, Institut Pasteur de Montevideo, Montevideo 11400, Uruguay
- Laboratorio de Biología Molecular, Sanatorio Americano, Montevideo 11600, Uruguay; (V.N.); (M.A.); (T.P.); (N.R.); (M.N.B.)
| | - Mailen Arleo
- Laboratorio de Biología Molecular, Sanatorio Americano, Montevideo 11600, Uruguay; (V.N.); (M.A.); (T.P.); (N.R.); (M.N.B.)
| | - Tania Possi
- Laboratorio de Biología Molecular, Sanatorio Americano, Montevideo 11600, Uruguay; (V.N.); (M.A.); (T.P.); (N.R.); (M.N.B.)
| | - Natalia Reyes
- Laboratorio de Biología Molecular, Sanatorio Americano, Montevideo 11600, Uruguay; (V.N.); (M.A.); (T.P.); (N.R.); (M.N.B.)
| | - María Noel Bentancor
- Laboratorio de Biología Molecular, Sanatorio Americano, Montevideo 11600, Uruguay; (V.N.); (M.A.); (T.P.); (N.R.); (M.N.B.)
| | - Andrés Lizasoain
- Laboratorio de Virología Molecular, Departamento de Ciencias Biológicas, CENUR Litoral Norte, Universidad de la República, Salto 50000, Uruguay; (A.L.); (V.B.); (A.M.); (R.C.)
| | - Viviana Bortagaray
- Laboratorio de Virología Molecular, Departamento de Ciencias Biológicas, CENUR Litoral Norte, Universidad de la República, Salto 50000, Uruguay; (A.L.); (V.B.); (A.M.); (R.C.)
| | - Ana Moller
- Laboratorio de Virología Molecular, Departamento de Ciencias Biológicas, CENUR Litoral Norte, Universidad de la República, Salto 50000, Uruguay; (A.L.); (V.B.); (A.M.); (R.C.)
| | - Odhille Chappos
- Centro Universitario Regional Este, Universidad de la República, Rocha 27000, Uruguay; (O.C.); (M.D.); (M.B.G.); (L.G.); (M.M.); (M.P.T.); (J.Z.); (E.P.); (C.A.)
| | - Nicolas Nin
- Unidad de Cuidados Intensivos, Hospital Español “Juan J. Crottogini”, Montevideo 11800, Uruguay; (N.N.); (J.H.)
| | - Javier Hurtado
- Unidad de Cuidados Intensivos, Hospital Español “Juan J. Crottogini”, Montevideo 11800, Uruguay; (N.N.); (J.H.)
| | - Melissa Duquía
- Centro Universitario Regional Este, Universidad de la República, Rocha 27000, Uruguay; (O.C.); (M.D.); (M.B.G.); (L.G.); (M.M.); (M.P.T.); (J.Z.); (E.P.); (C.A.)
| | - Maria Belén González
- Centro Universitario Regional Este, Universidad de la República, Rocha 27000, Uruguay; (O.C.); (M.D.); (M.B.G.); (L.G.); (M.M.); (M.P.T.); (J.Z.); (E.P.); (C.A.)
| | - Luciana Griffero
- Centro Universitario Regional Este, Universidad de la República, Rocha 27000, Uruguay; (O.C.); (M.D.); (M.B.G.); (L.G.); (M.M.); (M.P.T.); (J.Z.); (E.P.); (C.A.)
| | - Mauricio Méndez
- Centro Universitario Regional Este, Universidad de la República, Rocha 27000, Uruguay; (O.C.); (M.D.); (M.B.G.); (L.G.); (M.M.); (M.P.T.); (J.Z.); (E.P.); (C.A.)
| | - Maria Pía Techera
- Centro Universitario Regional Este, Universidad de la República, Rocha 27000, Uruguay; (O.C.); (M.D.); (M.B.G.); (L.G.); (M.M.); (M.P.T.); (J.Z.); (E.P.); (C.A.)
| | - Juan Zanetti
- Centro Universitario Regional Este, Universidad de la República, Rocha 27000, Uruguay; (O.C.); (M.D.); (M.B.G.); (L.G.); (M.M.); (M.P.T.); (J.Z.); (E.P.); (C.A.)
| | - Emiliano Pereira
- Centro Universitario Regional Este, Universidad de la República, Rocha 27000, Uruguay; (O.C.); (M.D.); (M.B.G.); (L.G.); (M.M.); (M.P.T.); (J.Z.); (E.P.); (C.A.)
| | - Bernardina Rivera
- Laboratorio de Diagnóstico Molecular, Institut Pasteur de Montevideo, Montevideo 11400, Uruguay; (B.R.); (M.M.); (M.A.)
| | - Matías Maidana
- Laboratorio de Diagnóstico Molecular, Institut Pasteur de Montevideo, Montevideo 11400, Uruguay; (B.R.); (M.M.); (M.A.)
| | - Martina Alonso
- Laboratorio de Diagnóstico Molecular, Institut Pasteur de Montevideo, Montevideo 11400, Uruguay; (B.R.); (M.M.); (M.A.)
| | - Pablo Smircich
- Bioinformatics Laboratory, Department of Genomics, Instituto de Investigaciones Biológicas Clemente Estable, MEC, Montevideo 11600, Uruguay;
- Laboratory of Molecular Interactions, Facultad de Ciencias, UdelaR, Montevideo 11400, Uruguay
| | - Ighor Arantes
- Laboratorio de AIDS e Imunologia Molecular, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro 21040-900, Brazil; (I.A.); (G.B.)
| | - Daiana Mir
- Unidad de Genómica y Bioinformática, Departamento de Ciencias Biológicas, Centro Universitario Regional Litoral Norte, Universidad de la República, Salto 50000, Uruguay;
| | - Cecilia Alonso
- Centro Universitario Regional Este, Universidad de la República, Rocha 27000, Uruguay; (O.C.); (M.D.); (M.B.G.); (L.G.); (M.M.); (M.P.T.); (J.Z.); (E.P.); (C.A.)
| | - Julio Medina
- Cátedra de Enfermedades Infecciosas, Facultad de Medicina, Universidad de la República, Montevideo 11300, Uruguay; (J.M.); (H.A.)
- Dirección General de Salud, Ministerio de Salud Pública, Montevideo 11200, Uruguay
| | - Henry Albornoz
- Cátedra de Enfermedades Infecciosas, Facultad de Medicina, Universidad de la República, Montevideo 11300, Uruguay; (J.M.); (H.A.)
- Dirección General de Salud, Ministerio de Salud Pública, Montevideo 11200, Uruguay
| | - Rodney Colina
- Laboratorio de Virología Molecular, Departamento de Ciencias Biológicas, CENUR Litoral Norte, Universidad de la República, Salto 50000, Uruguay; (A.L.); (V.B.); (A.M.); (R.C.)
| | - Gonzalo Bello
- Laboratorio de AIDS e Imunologia Molecular, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro 21040-900, Brazil; (I.A.); (G.B.)
| | - Pilar Moreno
- Centro de Innovación en Vigilancia Epidemiológica, Institut Pasteur Montevideo, Montevideo 11400, Uruguay; (M.P.); (A.C.)
- Laboratorio de Virología Molecular, Facultad de Ciencias, Universidad de la República, Montevideo 11400, Uruguay; (A.F.); (P.P.); (R.A.)
- Laboratorio de Evolución Experimental de Virus, Institut Pasteur de Montevideo, Montevideo 11400, Uruguay
| | - Gonzalo Moratorio
- Centro de Innovación en Vigilancia Epidemiológica, Institut Pasteur Montevideo, Montevideo 11400, Uruguay; (M.P.); (A.C.)
- Laboratorio de Virología Molecular, Facultad de Ciencias, Universidad de la República, Montevideo 11400, Uruguay; (A.F.); (P.P.); (R.A.)
- Laboratorio de Evolución Experimental de Virus, Institut Pasteur de Montevideo, Montevideo 11400, Uruguay
| | - Gregorio Iraola
- Laboratorio de Genómica Microbiana, Institut Pasteur Montevideo, Montevideo 11400, Uruguay; (C.S.); (I.F.)
- Centro de Innovación en Vigilancia Epidemiológica, Institut Pasteur Montevideo, Montevideo 11400, Uruguay; (M.P.); (A.C.)
- Center for Integrative Biology, Universidad Mayor, Santiago de Chile 8580745, Chile
- Host-Microbiota Interactions Laboratory, Wellcome Sanger Institute, Hinxton, Cambridge CB10 1SA, UK
| | - Lucía Spangenberg
- Bioinformatics Unit, Institut Pasteur de Montevideo, Montevideo 11400, Uruguay; (N.R.); (T.F.-C.); (M.B.)
- Department of Informatics and Computer Science, Universidad Católica del Uruguay, Montevideo 11600, Uruguay
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14
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Rego N, Costábile A, Paz M, Salazar C, Perbolianachis P, Spangenberg L, Ferrés I, Arce R, Fajardo A, Arleo M, Possi T, Reyes N, Bentancor MN, Lizasoain A, Benítez MJ, Bortagaray V, Moller A, Bello G, Arantes I, Brandes M, Smircich P, Chappos O, Duquía M, González B, Griffero L, Méndez M, Techera MP, Zanetti J, Rivera B, Maidana M, Alonso M, Alonso C, Medina J, Albornoz H, Colina R, Noya V, Iraola G, Fernández-Calero T, Moratorio G, Moreno P. Real-Time Genomic Surveillance for SARS-CoV-2 Variants of Concern, Uruguay. Emerg Infect Dis 2021; 27:2957-2960. [PMID: 34437831 PMCID: PMC8544970 DOI: 10.3201/eid2711.211198] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
We developed a genomic surveillance program for real-time monitoring of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants of concern (VOCs) in Uruguay. We report on a PCR method for SARS-CoV-2 VOCs, the surveillance workflow, and multiple independent introductions and community transmission of the SARS-CoV-2 P.1 VOC in Uruguay.
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15
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Pereira-Gómez M, Carrau L, Fajardo Á, Moreno P, Moratorio G. Altering Compositional Properties of Viral Genomes to Design Live-Attenuated Vaccines. Front Microbiol 2021; 12:676582. [PMID: 34276608 PMCID: PMC8278477 DOI: 10.3389/fmicb.2021.676582] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Accepted: 06/01/2021] [Indexed: 12/11/2022] Open
Abstract
Live-attenuated vaccines have been historically used to successfully prevent numerous diseases caused by a broad variety of RNA viruses due to their ability to elicit strong and perdurable immune-protective responses. In recent years, various strategies have been explored to achieve viral attenuation by rational genetic design rather than using classic and empirical approaches, based on successive passages in cell culture. A deeper understanding of evolutionary implications of distinct viral genomic compositional aspects, as well as substantial advances in synthetic biology technologies, have provided a framework to achieve new viral attenuation strategies. Herein, we will discuss different approaches that are currently applied to modify compositional features of viruses in order to develop novel live-attenuated vaccines.
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Affiliation(s)
- Marianoel Pereira-Gómez
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay
- Laboratorio de Evolución Experimental de Virus, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Lucía Carrau
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Álvaro Fajardo
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay
- Laboratorio de Evolución Experimental de Virus, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Pilar Moreno
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay
- Laboratorio de Evolución Experimental de Virus, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Gonzalo Moratorio
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay
- Laboratorio de Evolución Experimental de Virus, Institut Pasteur de Montevideo, Montevideo, Uruguay
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16
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Aldunate F, Echeverría N, Chiodi D, López P, Sánchez-Cicerón A, Soñora M, Cristina J, Moratorio G, Hernández N, Moreno P. Resistance-associated substitutions and response to treatment in a chronic hepatitis C virus infected-patient: an unusual virological response case report. BMC Infect Dis 2021; 21:387. [PMID: 33902462 PMCID: PMC8077789 DOI: 10.1186/s12879-021-06080-0] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Accepted: 04/15/2021] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Direct-Acting agents (DAAs) target and inhibit essential viral replication proteins. They have revolutionized the treatment of Hepatitis C virus (HCV) infection reaching high levels of sustained virologic response. However, the detection of basal resistance-associated substitutions (RASs) to DAAs in naïve patients could be important in predicting the treatment outcome in some patients exhibiting failures to DAA-based therapies. Therefore, the aim of this work was to evaluate the presence of RASs as minority variants within intra-host viral populations, and assess their relationship to response to therapy on a multiple times relapser patient infected chronically with HCV. CASE PRESENTATION A male HCV infected-patient with a genotype 1a strain was evaluated. He had previously not responded to dual therapy (pegylated interferon-α plus ribavirin) and was going to start a direct-acting agent-based therapy (DAAs). He showed no significant liver fibrosis (F0). Viral RNA was extracted from serum samples taken prior and after therapy with DAAs (sofosbubir/ledipasvir/ribavirin). NS5A and NS5B genomic regions were PCR-amplified and the amplicons were sequenced using Sanger and next-generation sequencing (NGS) approaches. RASs were searched in in-silico translated sequences for all DAAs available and their frequencies were determined for those detected by NGS technology. Sanger sequencing did not reveal the presence of RASs in the consensus sequence neither before nor after the DAA treatment. However, several RASs were found at low frequencies, both before as well as after DAA treatment. RASs found as minority variants (particularly substitutions in position 93 within NS5A region) seem to have increased their frequency after DAA pressure. Nevertheless, these RASs did not become dominant and the patient still relapsed, despite perfect adherence to treatment and having no other complications beyond the infection (no significant fibrosis, no drug abuse). CONCLUSIONS This report shows that some patients might relapse after a DAA-based therapy even when RASs (pre- and post-treatment) are detected in very low frequencies (< 1%) within intra-host viral populations. Increased awareness of this association may improve detection and guide towards a personalized HCV treatment, directly improving the outcome in hard-to-treat patients.
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Affiliation(s)
- Fabián Aldunate
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Mataojo 2055, ZIP: 11400, Montevideo, Uruguay
- Laboratorio de Evolución Experimental de Virus, Institut Pasteur de Montevideo, Mataojo 2020, ZIP: 11400, Montevideo, Uruguay
| | - Natalia Echeverría
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Mataojo 2055, ZIP: 11400, Montevideo, Uruguay
- Laboratorio de Evolución Experimental de Virus, Institut Pasteur de Montevideo, Mataojo 2020, ZIP: 11400, Montevideo, Uruguay
| | - Daniela Chiodi
- Clínica de Gastroenterología, Hospital de Clínicas, Facultad de Medicina, Universidad de la República, Av. Italia s/n, ZIP: 11600, Montevideo, Uruguay
| | - Pablo López
- Laboratorio de Patología Clínica, Hospital de Clínicas, Facultad de Medicina, Universidad de la República, Av. Italia s/n, ZIP: 11600, Montevideo, Uruguay
| | - Adriana Sánchez-Cicerón
- Clínica de Gastroenterología, Hospital de Clínicas, Facultad de Medicina, Universidad de la República, Av. Italia s/n, ZIP: 11600, Montevideo, Uruguay
| | - Martín Soñora
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Mataojo 2055, ZIP: 11400, Montevideo, Uruguay
- Laboratorio de Simulaciones Biomoleculares, Institut Pasteur de Montevideo, Mataojo 2020, ZIP: 11400, Montevideo, Uruguay
| | - Juan Cristina
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Mataojo 2055, ZIP: 11400, Montevideo, Uruguay
| | - Gonzalo Moratorio
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Mataojo 2055, ZIP: 11400, Montevideo, Uruguay
- Laboratorio de Evolución Experimental de Virus, Institut Pasteur de Montevideo, Mataojo 2020, ZIP: 11400, Montevideo, Uruguay
| | - Nelia Hernández
- Clínica de Gastroenterología, Hospital de Clínicas, Facultad de Medicina, Universidad de la República, Av. Italia s/n, ZIP: 11600, Montevideo, Uruguay
| | - Pilar Moreno
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Mataojo 2055, ZIP: 11400, Montevideo, Uruguay.
- Laboratorio de Evolución Experimental de Virus, Institut Pasteur de Montevideo, Mataojo 2020, ZIP: 11400, Montevideo, Uruguay.
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Errazquin R, Sieiro E, Moreno P, Ramirez MJ, Lorz C, Peral J, Ortiz J, Casado JA, Roman-Rodriguez FJ, Hanenberg H, Río P, Surralles J, Segrelles C, Garcia-Escudero R. Generating New FANCA-Deficient HNSCC Cell Lines by Genomic Editing Recapitulates the Cellular Phenotypes of Fanconi Anemia. Genes (Basel) 2021; 12:548. [PMID: 33918752 PMCID: PMC8069753 DOI: 10.3390/genes12040548] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 03/30/2021] [Accepted: 04/07/2021] [Indexed: 01/22/2023] Open
Abstract
Fanconi anemia (FA) patients have an exacerbated risk of head and neck squamous cell carcinoma (HNSCC). Treatment is challenging as FA patients display enhanced toxicity to standard treatments, including radio/chemotherapy. Therefore, better therapies as well as new disease models are urgently needed. We have used CRISPR/Cas9 editing tools in order to interrupt the human FANCA gene by the generation of insertions/deletions (indels) in exon 4 in two cancer cell lines from sporadic HNSCC having no mutation in FA-genes: CAL27 and CAL33 cells. Our approach allowed efficient editing, subsequent purification of single-cell clones, and Sanger sequencing validation at the edited locus. Clones having frameshift indels in homozygosis did not express FANCA protein and were selected for further analysis. When compared with parental CAL27 and CAL33, FANCA-mutant cell clones displayed a FA-phenotype as they (i) are highly sensitive to DNA interstrand crosslink (ICL) agents such as mitomycin C (MMC) or cisplatin, (ii) do not monoubiquitinate FANCD2 upon MMC treatment and therefore (iii) do not form FANCD2 nuclear foci, and (iv) they display increased chromosome fragility and G2 arrest after diepoxybutane (DEB) treatment. These FANCA-mutant clones display similar growth rates as their parental cells. Interestingly, mutant cells acquire phenotypes associated with more aggressive disease, such as increased migration in wound healing assays. Therefore, CAL27 and CAL33 cells with FANCA mutations are phenocopies of FA-HNSCC cells.
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Affiliation(s)
- Ricardo Errazquin
- Biomedical Research Institute I+12, University Hospital 12 de Octubre, 28041 Madrid, Spain; (R.E.); (C.L.); (C.S.)
- Molecular Oncology Unit, CIEMAT, 28040 Madrid, Spain; (E.S.); (P.M.); (J.P.); (J.O.)
| | - Esther Sieiro
- Molecular Oncology Unit, CIEMAT, 28040 Madrid, Spain; (E.S.); (P.M.); (J.P.); (J.O.)
| | - Pilar Moreno
- Molecular Oncology Unit, CIEMAT, 28040 Madrid, Spain; (E.S.); (P.M.); (J.P.); (J.O.)
| | - María José Ramirez
- Join Research Unit on Genomic Medicine UAB-Sant Pau Biomedical Research Institute, Hospital de la Santa Creu i Sant Pau, 08041 Barcelona, Spain; (M.J.R.); (J.S.)
- Centro de Investigación Biomédica en Enfermedades Raras (CIBERER), 28029 Madrid, Spain; (J.A.C.); (F.J.R.-R.); (P.R.)
| | - Corina Lorz
- Biomedical Research Institute I+12, University Hospital 12 de Octubre, 28041 Madrid, Spain; (R.E.); (C.L.); (C.S.)
- Molecular Oncology Unit, CIEMAT, 28040 Madrid, Spain; (E.S.); (P.M.); (J.P.); (J.O.)
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), 28029 Madrid, Spain
| | - Jorge Peral
- Molecular Oncology Unit, CIEMAT, 28040 Madrid, Spain; (E.S.); (P.M.); (J.P.); (J.O.)
| | - Jessica Ortiz
- Molecular Oncology Unit, CIEMAT, 28040 Madrid, Spain; (E.S.); (P.M.); (J.P.); (J.O.)
| | - José Antonio Casado
- Centro de Investigación Biomédica en Enfermedades Raras (CIBERER), 28029 Madrid, Spain; (J.A.C.); (F.J.R.-R.); (P.R.)
- Hematopoietic Innovative Therapies Division, CIEMAT, 28040 Madrid, Spain
- Instituto de Investigaciones Sanitarias de la Fundación Jiménez Díaz, 28040 Madrid, Spain
| | - Francisco J. Roman-Rodriguez
- Centro de Investigación Biomédica en Enfermedades Raras (CIBERER), 28029 Madrid, Spain; (J.A.C.); (F.J.R.-R.); (P.R.)
- Hematopoietic Innovative Therapies Division, CIEMAT, 28040 Madrid, Spain
- Instituto de Investigaciones Sanitarias de la Fundación Jiménez Díaz, 28040 Madrid, Spain
| | - Helmut Hanenberg
- University Children’s Hospital Essen, University of Duisburg-Essen, 47057 Essen, Germany;
- Department of Otorhinolaryngology & Head/Neck Surgery, Heinrich Heine University, 40225 Düsseldorf, Germany
| | - Paula Río
- Centro de Investigación Biomédica en Enfermedades Raras (CIBERER), 28029 Madrid, Spain; (J.A.C.); (F.J.R.-R.); (P.R.)
- Hematopoietic Innovative Therapies Division, CIEMAT, 28040 Madrid, Spain
- Instituto de Investigaciones Sanitarias de la Fundación Jiménez Díaz, 28040 Madrid, Spain
| | - Jordi Surralles
- Join Research Unit on Genomic Medicine UAB-Sant Pau Biomedical Research Institute, Hospital de la Santa Creu i Sant Pau, 08041 Barcelona, Spain; (M.J.R.); (J.S.)
- Centro de Investigación Biomédica en Enfermedades Raras (CIBERER), 28029 Madrid, Spain; (J.A.C.); (F.J.R.-R.); (P.R.)
| | - Carmen Segrelles
- Biomedical Research Institute I+12, University Hospital 12 de Octubre, 28041 Madrid, Spain; (R.E.); (C.L.); (C.S.)
- Molecular Oncology Unit, CIEMAT, 28040 Madrid, Spain; (E.S.); (P.M.); (J.P.); (J.O.)
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), 28029 Madrid, Spain
| | - Ramon Garcia-Escudero
- Biomedical Research Institute I+12, University Hospital 12 de Octubre, 28041 Madrid, Spain; (R.E.); (C.L.); (C.S.)
- Molecular Oncology Unit, CIEMAT, 28040 Madrid, Spain; (E.S.); (P.M.); (J.P.); (J.O.)
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), 28029 Madrid, Spain
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18
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Cassinello J, Domínguez-Lubillo T, Gómez-Barrera M, Hernando T, Parra R, Asensio I, Casado MA, Moreno P. Optimal treatment sequencing of abiraterone acetate plus prednisone and enzalutamide in patients with castration-resistant metastatic prostate cancer: A systematic review and meta-analysis. Cancer Treat Rev 2021; 93:102152. [PMID: 33486302 DOI: 10.1016/j.ctrv.2020.102152] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 12/22/2020] [Accepted: 12/24/2020] [Indexed: 01/19/2023]
Abstract
PURPOSE To evaluate the impact of the hormonal treatment sequencing including abiraterone acetate plus prednisone (AAP) and enzalutamide (ENZ) in mCRPC, and determine which sequence provides more benefits for patients. METHODS Studies published in English between 1 January 2013 and 30 September 2017 were identified in PubMed and EMBASE electronic databases. Studies assessing the efficacy of treatment sequences, based on AAP and ENZ, in mCRPC patients, were eligible for analysis. RESULTS Seventeen studies met the inclusion criteria. Two assessed both treatment sequences AAP → ENZ and ENZ → AAP; it was found that sequence of AAP → ENZ showed a statistically significantly longer PSA-PFS than the observed in ENZ → AAP (pooled HR: 0,54; 95% CI; 0,36-0,82; p < 0,05). The nine studies analysing Doc → AAP → ENZ sequence, revealed favourable results in terms of PFS. The 5 studies which analysed AAP → ENZ sequence, show a decrease in PSA levels ≥ 50% in 11-41% of patients treated with enzalutamide after previous treatment with AAP. In the two studies that analysed the Doc → ENZ → AAP sequence, PSA response rates were much lower than those reported with Doc → AAP → ENZ, with decreases in PSA ≥ 30 of 3-18% and PSA ≥ 50 of 8-11%. CONCLUSION Significant clinical efficacy of AAP administered as the first-line treatment in mCRPC patients followed by enzalutamide, delaying disease progression, compared with the ENZ → AAP sequence. However, more studies and randomized trials are needed, to validate the best treatment sequencing.
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Affiliation(s)
- J Cassinello
- Department of Oncology, University General Hospital of Guadalajara, Calle Donante de Sangre, S/N, 19002, Guadalajara, Spain
| | - T Domínguez-Lubillo
- Department of health economics and market access, Janssen-Cilag, Paseo Doce Estrellas 5-7, 28042 Madrid, Spain
| | - M Gómez-Barrera
- Pharmacoeconomics & Outcomes Research Iberia (PORIB), Paseo Joaquín Rodrigo, 4 i, 28224, Pozuelo de Alarcón, Madrid, Spain
| | - T Hernando
- Department of health economics and market access, Janssen-Cilag, Paseo Doce Estrellas 5-7, 28042 Madrid, Spain
| | - R Parra
- Department of health economics and market access, Janssen-Cilag, Paseo Doce Estrellas 5-7, 28042 Madrid, Spain
| | - I Asensio
- Department of health economics and market access, Janssen-Cilag, Paseo Doce Estrellas 5-7, 28042 Madrid, Spain
| | - M A Casado
- Pharmacoeconomics & Outcomes Research Iberia (PORIB), Paseo Joaquín Rodrigo, 4 i, 28224, Pozuelo de Alarcón, Madrid, Spain
| | - P Moreno
- Department of health economics and market access, Janssen-Cilag, Paseo Doce Estrellas 5-7, 28042 Madrid, Spain.
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Pereira-Gómez M, Fajardo Á, Echeverría N, López-Tort F, Perbolianachis P, Costábile A, Aldunate F, Moreno P, Moratorio G. Evaluation of SYBR Green real time PCR for detecting SARS-CoV-2 from clinical samples. J Virol Methods 2020; 289:114035. [PMID: 33285190 PMCID: PMC7831559 DOI: 10.1016/j.jviromet.2020.114035] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 11/06/2020] [Accepted: 12/02/2020] [Indexed: 12/14/2022]
Abstract
The pandemic caused by SARS-CoV-2 has triggered an extraordinary collapse of healthcare systems and hundred thousand of deaths worldwide. Following the declaration of the outbreak as a Public Health Emergency of International Concern by the World Health Organization (WHO) on January 30th, 2020, it has become imperative to develop diagnostic tools to reliably detect the virus in infected patients. Several methods based on real time reverse transcription polymerase chain reaction (RT-qPCR) for the detection of SARS-CoV-2 genomic RNA have been developed. In addition, these methods have been recommended by the WHO for laboratory diagnosis. Since most of these protocols are based on the use of fluorogenic probes and one-step reagents (cDNA synthesis followed by PCR amplification in the same tube), these techniques can be difficult to perform given the limited supply of reagents in low- and middle-income countries. In order to develop an inexpensive SARS-CoV-2 detection protocol using available resources we evaluated the SYBR Green based detection of SARS-CoV-2 to establish a suitable assay. To do so, we adapted one of the WHO recommended TaqMan-based one-step real time PCR protocols (from the University of Hong Kong) to SYBR Green. Our results indicate that SYBR-Green detection of ORF1b-nsp14 target represents a reliable cost-effective alternative to increase the testing capacity.
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Affiliation(s)
- Marianoel Pereira-Gómez
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay; Laboratorio de Evolución Experimental de Virus, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Álvaro Fajardo
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay; Laboratorio de Evolución Experimental de Virus, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Natalia Echeverría
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay; Laboratorio de Evolución Experimental de Virus, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Fernando López-Tort
- Laboratorio de Virología Molecular, Sede Salto, Centro Universitario Regional Litoral Norte, Universidad de la República, Salto, Uruguay
| | - Paula Perbolianachis
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay; Laboratorio de Evolución Experimental de Virus, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Alicia Costábile
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay; Laboratorio de Evolución Experimental de Virus, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Fabián Aldunate
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay; Laboratorio de Evolución Experimental de Virus, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Pilar Moreno
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay; Laboratorio de Evolución Experimental de Virus, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Gonzalo Moratorio
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay; Laboratorio de Evolución Experimental de Virus, Institut Pasteur de Montevideo, Montevideo, Uruguay.
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20
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Rivera B, Leyva A, Portela MM, Moratorio G, Moreno P, Durán R, Lima A. Quantitative proteomic dataset from oro- and naso-pharyngeal swabs used for COVID-19 diagnosis: Detection of viral proteins and host's biological processes altered by the infection. Data Brief 2020; 32:106121. [PMID: 32835036 PMCID: PMC7405904 DOI: 10.1016/j.dib.2020.106121] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [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: 07/28/2020] [Revised: 07/29/2020] [Accepted: 07/30/2020] [Indexed: 11/28/2022] Open
Abstract
Since January 2020, the world is facing the COVID-19 pandemic caused by SARS-CoV-2. In a big effort to cope with this outbreak, two Uruguayan institutions, Institut Pasteur de Montevideo and Universidad de la República, have developed and implemented a diagnosis pipeline based on qRT-PCR using entirely local resources. In this context, we performed comparative quantitative proteomic analysis from oro- and naso-pharyngeal swabs used for diagnosis. Tryptic peptides obtained from five positive and five negative samples were analysed by nano-LC-MS/MS using a Q-Exactive Plus mass spectrometer. Data analysis was performed using PatternLab for Proteomics software. From all SARS-CoV-2 positive swabs we were able to detect peptides of the SARS-CoV-2 nucleoprotein that encapsulates and protect the RNA genome. Additionally, we detected an average of 1100 human proteins from each sample. The most abundant proteins exclusively detected in positive swabs were “Guanylate-binding protein 1”, “Tapasin” and “HLA class II histocompatibility antigen DR beta chain”. The biological processes overrepresented in infected host cells were “SRP-dependent cotranslational protein targeting to membrane”, “nuclear-transcribed mRNA catabolic process, nonsense-mediated decay”, “viral transcription” and “translational initiation”. Data is available via ProteomeXchange with identifier PXD020394. We expect that this data can contribute to the future development of mass spectrometry based approaches for COVID-19 diagnosis. Also, we share this preliminary proteomic characterization concerning the host response to infection for its reuse in basic investigation.
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Affiliation(s)
- Bernardina Rivera
- Unidad de Bioquímica y Proteómica Analíticas, Institut Pasteur de Montevideo & Instituto de Investigaciones Biológicas Clemente Estable, Mataojo 2020, CP 11400 Montevideo, Uruguay
| | - Alejandro Leyva
- Unidad de Bioquímica y Proteómica Analíticas, Institut Pasteur de Montevideo & Instituto de Investigaciones Biológicas Clemente Estable, Mataojo 2020, CP 11400 Montevideo, Uruguay
| | - María Magdalena Portela
- Unidad de Bioquímica y Proteómica Analíticas, Institut Pasteur de Montevideo & Instituto de Investigaciones Biológicas Clemente Estable, Mataojo 2020, CP 11400 Montevideo, Uruguay.,Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay
| | - Gonzalo Moratorio
- Laboratorio de Inmunovirología, Institut Pasteur de Montevideo, Uruguay.,Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay
| | - Pilar Moreno
- Laboratorio de Inmunovirología, Institut Pasteur de Montevideo, Uruguay.,Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay
| | - Rosario Durán
- Unidad de Bioquímica y Proteómica Analíticas, Institut Pasteur de Montevideo & Instituto de Investigaciones Biológicas Clemente Estable, Mataojo 2020, CP 11400 Montevideo, Uruguay
| | - Analía Lima
- Unidad de Bioquímica y Proteómica Analíticas, Institut Pasteur de Montevideo & Instituto de Investigaciones Biológicas Clemente Estable, Mataojo 2020, CP 11400 Montevideo, Uruguay
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21
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Corredor-Figueroa AP, Salas S, Olaya-Galán NN, Quintero JS, Fajardo Á, Soñora M, Moreno P, Cristina J, Sánchez A, Tobón J, Ortiz D, Gutiérrez MF. Prevalence and molecular epidemiology of bovine leukemia virus in Colombian cattle. Infect Genet Evol 2020; 80:104171. [PMID: 31904555 DOI: 10.1016/j.meegid.2020.104171] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 12/28/2019] [Accepted: 01/01/2020] [Indexed: 01/14/2023]
Abstract
Bovine leukemia virus (BLV) is one of the five agents considered most significant for cattle. It is important to determine the prevalence and molecular epidemiology of BLV throughout the country in order to gain a more thorough understanding of the current situation of BLV and to reveal the possibility of masked genotypes that the primers used by OIE are unable to identify. Blood samples were collected at random from 289 cows distributed in 75 farms across the country. PCR amplification of env, gag and tax gene segments was performed. The obtained amplicons were sequenced and then subjected to phylogenetic analyses. A total of 62% of the cows present at 92% of the farms were BLV-positive for gag fragment. Genotype 1 was exclusively detected by env gene segment when analyzed using previously reported primers. However, tax gene analysis revealed circulation of genotype 6 variants, which were also detected based on env gene analysis with newly designed primers. These results indicate that current genotyping approaches based on partial env sequencing may bias BLV genetic variability approaches and underestimate the diversity of the detected BLV genotypes. This report is one of the first molecular and epidemiological studies of BLV conducted in Colombia, which contributes to the global epidemiology of the virus; it also highlights the substantial impact of BLV on the country's livestock and thus is a useful resource for farmers and government entities.
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Affiliation(s)
- Adriana Patricia Corredor-Figueroa
- Universidad ECCI, Cra. 19 No. 49-20, Bogotá 111311, Colombia; Grupo de Enfermedades Infecciosas, Laboratorio de Virología, Departamento de Microbiología, Pontificia Universidad Javeriana, Carrera 7 No. 40 - 62, Bogotá́ 11001000, Colombia.
| | - Sandra Salas
- Grupo de Enfermedades Infecciosas, Laboratorio de Virología, Departamento de Microbiología, Pontificia Universidad Javeriana, Carrera 7 No. 40 - 62, Bogotá́ 11001000, Colombia.
| | - Nury Nathalia Olaya-Galán
- Grupo de Enfermedades Infecciosas, Laboratorio de Virología, Departamento de Microbiología, Pontificia Universidad Javeriana, Carrera 7 No. 40 - 62, Bogotá́ 11001000, Colombia; PhD Programme in Biomedical and Biological Sciences, Universidad del Rosario, Carrera 24 N° 63C-69, Bogotá́ 112111, Colombia
| | - Juan Sebastián Quintero
- Grupo de Enfermedades Infecciosas, Laboratorio de Virología, Departamento de Microbiología, Pontificia Universidad Javeriana, Carrera 7 No. 40 - 62, Bogotá́ 11001000, Colombia.
| | - Álvaro Fajardo
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República de Uruguay, Mataojo 2055, Montevideo 11400, Uruguay.
| | - Martín Soñora
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República de Uruguay, Mataojo 2055, Montevideo 11400, Uruguay.
| | - Pilar Moreno
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República de Uruguay, Mataojo 2055, Montevideo 11400, Uruguay.
| | - Juan Cristina
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República de Uruguay, Mataojo 2055, Montevideo 11400, Uruguay
| | - Alfredo Sánchez
- Empresa Colombiana de Productos Veterinarios - VECOL, Av.Eldorado 82-93, Bogotá 110931, Colombia
| | - Julio Tobón
- Empresa Colombiana de Productos Veterinarios - VECOL, Av.Eldorado 82-93, Bogotá 110931, Colombia.
| | - Diego Ortiz
- Agrosavia, Km 14 Vía Mosquera-Bogotá, Mosquera 250047, Colombia
| | - María Fernanda Gutiérrez
- Grupo de Enfermedades Infecciosas, Laboratorio de Virología, Departamento de Microbiología, Pontificia Universidad Javeriana, Carrera 7 No. 40 - 62, Bogotá́ 11001000, Colombia.
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22
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Barrera A, Alhambra M, Molina M, Rebollo Á, Alcántara M, León S, Moreno P, Muñoz C, Manzano G, Padillo J, Calañas A, Gutiérrez J, Gálvez M. MON-PO368: Nutritional Status and Immunonutrition in Patients Intervened for Total Laringectomy for Cancer. Clin Nutr 2019. [DOI: 10.1016/s0261-5614(19)32202-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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23
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Díez JJ, Galofré JC, Oleaga A, Grande E, Mitjavila M, Moreno P. Results of a nationwide survey on multidisciplinary teams on thyroid cancer in Spain. Clin Transl Oncol 2019; 21:1319-1326. [PMID: 30721524 DOI: 10.1007/s12094-019-02056-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Accepted: 01/29/2019] [Indexed: 12/24/2022]
Abstract
AIM There is an important lack of knowledge as to the functioning of multidisciplinary teams on thyroid cancer in current clinical practice. We aimed to retrieve data on the composition, structure, and procedures developed by the multidisciplinary units of thyroid cancer in Spain. METHODS A nationwide survey consisting of questions about composition, structure, and functioning of multidisciplinary teams was designed. It was available online from November 15, 2017 to February 15, 2018. RESULTS Seventy-two multidisciplinary units responded to our survey. Of these, 15 (20.8%) focused only in thyroid cancer, while 57 (79.2%) included other endocrine disorders or non-endocrine tumors. The median (interquartile range) of members of the teams was 11 (9-14). The most frequent medical specialties in the units were endocrinology (100%), surgery (94.4%), pathology (80.6%), radiology (75.0%), nuclear medicine (73.6%), and medical oncology (55.6%). The annual number of patients reviewed by the teams was 40 (20-74). 56.9% of the multidisciplinary teams have elaborated clinical protocols for local use. Apart from clinical case discussions in the meetings, 45.8% of the units included educational activities and 36.1% research subjects. Quality indicators were developed by 22% of the teams. CONCLUSIONS These results suggest that there are some hopeful signs that international recommendations of having multidisciplinary approach to patients with thyroid cancer are being followed in Spain. This gives us the opportunity to proceed with further studies to analyze the real impact of this high standard of care on patient outcomes.
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Affiliation(s)
- J J Díez
- Department of Endocrinology, Hospital Universitario Ramón y Cajal, Madrid, Spain. .,Department of Endocrinology, Hospital Universitario Puerta de Hierro Majadahonda, Calle Manuel de Falla, 1, 28222, Majadahonda, Madrid, Spain.
| | - J C Galofré
- Department of Endocrinology, Clínica Universidad de Navarra, Pamplona, Spain
| | - A Oleaga
- Department of Endocrinology, Hospital Universitario Basurto, Bilbao, Spain
| | - E Grande
- Department of Medical Oncology, MD Anderson Cancer Center, Madrid, Spain
| | - M Mitjavila
- Department of Nuclear Medicine, Hospital Universitario Puerta de Hierro Majadahonda, Madrid, Spain
| | - P Moreno
- Department of General Surgery, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat, Barcelona, Spain
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Simón D, Fajardo A, Moreno P, Moratorio G, Cristina J. An Evolutionary Insight into Zika Virus Strains Isolated in the Latin American Region. Viruses 2018; 10:v10120698. [PMID: 30544785 PMCID: PMC6316622 DOI: 10.3390/v10120698] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [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: 09/30/2018] [Revised: 11/19/2018] [Accepted: 11/20/2018] [Indexed: 02/04/2023] Open
Abstract
Zika virus (ZIKV) is an emerging pathogen member of the Flaviviridae family. ZIKV has spread rapidly in the Latin American region, causing hundreds of thousands of cases of ZIKV disease, as well as microcephaly in congenital infections. Detailed studies on the pattern of evolution of ZIKV strains have been extremely important to our understanding of viral survival, fitness, and evasion of the host’s immune system. For these reasons, we performed a comprehensive phylogenetic analysis of ZIKV strains recently isolated in the Americas. The results of these studies revealed evidence of diversification of ZIKV strains circulating in the Latin American region into at least five different genetic clusters. This diversification was also reflected in the different trends in dinucleotide bias and codon usage variation. Amino acid substitutions were found in E and prM proteins of the ZIKV strains isolated in this region, revealing the presence of novel genetic variants circulating in Latin America.
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Affiliation(s)
- Diego Simón
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Iguá 4225, Montevideo 11400, Uruguay.
- Laboratorio de Organización y Evolución del Genoma, Unidad de Genómica Evolutiva, Facultad de Ciencias, Universidad de la República, Iguá 4225, Montevideo 11400, Uruguay.
| | - Alvaro Fajardo
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Iguá 4225, Montevideo 11400, Uruguay.
| | - Pilar Moreno
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Iguá 4225, Montevideo 11400, Uruguay.
| | - Gonzalo Moratorio
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Iguá 4225, Montevideo 11400, Uruguay.
- Laboratorio de Inmunovirología, Institut Pasteur de Montevideo, Mataojo 2020, Montevideo 11400, Uruguay.
| | - Juan Cristina
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Iguá 4225, Montevideo 11400, Uruguay.
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Barrera A, Molina M, Rebollo Á, Alcántara M, Manzano G, Padillo J, Calañas A, Moreno P, Alhambra M, Gálvez M. Nutritional status in patients undergoing total laryngectomy because of neoplasia. Clin Nutr 2018. [DOI: 10.1016/j.clnu.2018.06.1298] [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: 11/28/2022]
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26
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Lobo E, Ayllon E, Eito MÁ, Lozano A, Martínez S, Bañares L, Vicén MJ, Moreno P. [The City of Girls and Boys of Huesca (Spain), an opportunity for designing healthy environment and public policies]. Gac Sanit 2018; 33:296-298. [PMID: 30029807 DOI: 10.1016/j.gaceta.2018.04.011] [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] [Received: 01/12/2018] [Revised: 04/06/2018] [Accepted: 04/09/2018] [Indexed: 12/01/2022]
Abstract
The City of Girls and Boys of Huesca (Spain) is an international project that seeks to foster children's autonomy and full participation in the construction of the city. Following its formal approval at the City Council of Huesca, the Girls and Boys Board and the City Laboratory were created, both of which include children from all the schools of Huesca. To highlightthe work on health, activities such as "Healthy School Paths", in which the asset mapping technique is used, were incorporated. Besides the interdisciplinary work among different areas of the city council, professionals from education (schools and university), health and social services, effects on the urban physical environment, with one street, park and square remodelled; and on the children's lifestyles, with more children walking to school alone, have been observed.
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Affiliation(s)
- Elena Lobo
- Departamento de Medicina Preventiva y Salud Pública, Universidad de Zaragoza, Zaragoza, España; Instituto de Investigación Sanitaria de Aragón, Zaragoza, España.
| | - Ester Ayllon
- Departamento de Psicología y Sociología, Facultad de Ciencias Humanas y de la Educación, Huesca, España; Grupo Promotor del Proyecto La Ciudad de las Niñas y los Niños, Facultad de Ciencias Humanas y de la Educación, Huesca, España
| | - M Ángeles Eito
- Grupo Promotor del Proyecto La Ciudad de las Niñas y los Niños, Facultad de Ciencias Humanas y de la Educación, Huesca, España; Área de Infancia y Juventud, Ayuntamiento de Huesca, Huesca, España
| | - Azucena Lozano
- Grupo Promotor del Proyecto La Ciudad de las Niñas y los Niños, Facultad de Ciencias Humanas y de la Educación, Huesca, España; Departamento de Matemáticas, Facultad de Ciencias Humanas y de la Educación, Huesca, España
| | - Silvia Martínez
- Grupo Promotor del Proyecto La Ciudad de las Niñas y los Niños, Facultad de Ciencias Humanas y de la Educación, Huesca, España; Área de Infancia y Juventud, Ayuntamiento de Huesca, Huesca, España
| | - Lidia Bañares
- Grupo Promotor del Proyecto La Ciudad de las Niñas y los Niños, Facultad de Ciencias Humanas y de la Educación, Huesca, España
| | - M Jesús Vicén
- Grupo Promotor del Proyecto La Ciudad de las Niñas y los Niños, Facultad de Ciencias Humanas y de la Educación, Huesca, España
| | - Pilar Moreno
- Grupo Promotor del Proyecto La Ciudad de las Niñas y los Niños, Facultad de Ciencias Humanas y de la Educación, Huesca, España
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Poveda-Roda R, Moreno P, Bagán J, Margaix M. Myofascial Pain: Ultrasound Width of the Masseter Muscle. J Oral Facial Pain Headache 2018; 32:298–303. [DOI: 10.11607/ofph.1944] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Echeverría N, Chiodi D, López P, Sanchez Ciceron A, Angulo J, López-Lastra M, Silvera P, Canavesi A, Bianchi C, Colistro V, Cristina J, Hernandez N, Moreno P. IL28B gene polymorphism rs12979860, but not rs8099917, contributes to the occurrence of chronic HCV infection in Uruguayan patients. Virol J 2018; 15:40. [PMID: 29499724 PMCID: PMC5833045 DOI: 10.1186/s12985-018-0946-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [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: 10/12/2017] [Accepted: 02/05/2018] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Host single-nucleotide polymorphisms (SNPs) near the interleukin 28B (IL28B) locus are associated with sustained virological response to antiviral therapy and with spontaneous Hepatitis C Virus (HCV) clearance. Prevalence of these SNPs varies depending on ethnicity. The impact of IL28B SNPs in HCV-infected patients is currently unknown in Uruguay. Therefore, the aim of this study was to evaluate and compare the distribution of polymorphisms in the IL28B gene (rs12979860 and rs8099917) among HCV-infected patients and healthy individuals in Uruguay and thus assess their possible association with the establishment of HCV infection. METHODS DNA was recovered from 92 non-infected individuals and 78 HCV-infected patients and SNPs were determined by RFLP and allelic discrimination by real-time PCR. RESULTS The distribution of rs12979860 genotypes for the infected population was 29.5%-CC, 47.4%-CT and 23.1%-TT and for the control group 45.7%, 42.4% and 11.9%, respectively. Prevalence in both infected and uninfected individuals is similar to that reported in other countries with admixed populations. The distribution of rs8099917 genotypes for the infected population was 57.7%-TT, 27.2%-TG and 14.1%-GG and for the control group 60.9%, 33.7% and 5.4%, respectively. The comparison of rs12979860 genotype distribution between the two populations evidenced a higher prevalence of the favourable genotype (CC) in the uninfected control group (p < 0.05). Additionally, results generated using logistic regression analysis show that individuals carrying rs12979860-TT or CT genotypes have a higher likelihood of developing chronic hepatitis upon infection with HCV, when compared to CC carriers, considering rs8099917 genotype as constant. CONCLUSION Patients with HCV infection have a statistically significant lower prevalence of the favourable rs12979860 genotype when compared to uninfected individuals; therefore we can establish that only IL28B rs12979860-CT and TT genotypes seem to contribute to the occurrence of chronic HCV infection in the cohort of Uruguayan population studied. Considering that a trend towards a higher frequency of "good" response genotypes was observed in responder patients, we believe that IL28B rs12979860 genotyping could be a useful tool for predicting different therapies outcome, including in the DAA era.
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Affiliation(s)
- Natalia Echeverría
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, 2055 Montevideo, Mataojo Uruguay
| | - Daniela Chiodi
- Clínica de Gastroenterología, Hospital de Clínicas, Facultad de Medicina, Universidad de la República, 11600 Montevideo, Uruguay
| | - Pablo López
- Departamento de Laboratorio Clínico, Hospital de Clínicas, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay
| | - Adriana Sanchez Ciceron
- Clínica de Gastroenterología, Hospital de Clínicas, Facultad de Medicina, Universidad de la República, 11600 Montevideo, Uruguay
| | - Jenniffer Angulo
- Laboratorio de Virología Molecular, Instituto Milenio de Inmunología e Inmunoterapia, Centro de Investigaciones Médicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Marcelo López-Lastra
- Laboratorio de Virología Molecular, Instituto Milenio de Inmunología e Inmunoterapia, Centro de Investigaciones Médicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Paola Silvera
- Departamento de Laboratorio Clínico, Hospital de Clínicas, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay
| | - Adrian Canavesi
- Clínica de Gastroenterología, Hospital de Clínicas, Facultad de Medicina, Universidad de la República, 11600 Montevideo, Uruguay
| | | | - Valentina Colistro
- Departamento de Genética, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay
| | - Juan Cristina
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, 2055 Montevideo, Mataojo Uruguay
| | - Nelia Hernandez
- Clínica de Gastroenterología, Hospital de Clínicas, Facultad de Medicina, Universidad de la República, 11600 Montevideo, Uruguay
| | - Pilar Moreno
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, 2055 Montevideo, Mataojo Uruguay
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Pellitero S, Piquer-Garcia I, Ferrer-Curriu G, Puig R, Martínez E, Moreno P, Tarascó J, Balibrea J, Lerin C, Puig-Domingo M, Villarroya F, Planavila A, Sánchez-Infantes D. Opposite changes in meteorin-like and oncostatin m levels are associated with metabolic improvements after bariatric surgery. Int J Obes (Lond) 2017; 42:919-922. [PMID: 29081506 DOI: 10.1038/ijo.2017.268] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [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: 07/20/2017] [Revised: 09/27/2017] [Accepted: 10/17/2017] [Indexed: 01/29/2023]
Abstract
Bariatric surgery is currently the most effective therapy for type 2 diabetes. However, the mechanisms underlying its beneficial effects remain elusive. Here we studied the effects of bariatric surgery on circulating meteorin-like (Metrnl) and oncostatin m (OSM) levels, two hormones intimately linked to energy homeostasis. Metrnl and OSM levels were assessed at baseline, 6 and 12 months after laparoscopic sleeve gastrectomy (LSG) in 25 patients with obesity, as well as in 33 normal-weight controls. At baseline, patients with obesity showed lower Metrnl and higher OSM levels compared to controls. LSG increased Metrnl and decreased OSM levels, in correlation to improvements in glucose and lipid homeostasis. Our data indicate that LSG conversely modulated Metrnl and OSM levels, and suggest that a dual approach modulating these two molecules might provide a novel strategy for obesity and type 2 diabetes treatment.
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Affiliation(s)
- S Pellitero
- Department of Endocrinology and Nutrition, Germans Trias i Pujol Research Institute, Barcelona, Spain and CIBER Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Spain
| | - I Piquer-Garcia
- Department of Endocrinology and Nutrition, Germans Trias i Pujol Research Institute, Barcelona, Spain and CIBER Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Spain
| | - G Ferrer-Curriu
- Department of Biochemistry and Molecular Biomedicine. Institut de Biomedicina de la Universitat de Barcelona (IBUB), Universitat de Barcelona, Barcelona, Spain.,CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Spain
| | - R Puig
- Department of Endocrinology and Nutrition, Germans Trias i Pujol Research Institute, Barcelona, Spain and CIBER Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Spain
| | - E Martínez
- Department of Endocrinology and Nutrition, Germans Trias i Pujol Research Institute, Barcelona, Spain and CIBER Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Spain
| | - P Moreno
- Department of Surgery, Germans Trias i Pujol Research Institute, Barcelona, Spain
| | - J Tarascó
- Department of Surgery, Germans Trias i Pujol Research Institute, Barcelona, Spain
| | - J Balibrea
- Metabolic and Bariatric Surgery Unit, EAC-BS Center of Excellence, Vall d'Hebron University Hospital, Barcelona, Spain
| | - C Lerin
- Endocrinology Department, Institut de Recerca Sant Joan de Déu, Barcelona, Spain
| | - M Puig-Domingo
- Department of Endocrinology and Nutrition, Germans Trias i Pujol Research Institute, Barcelona, Spain and CIBER Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Spain
| | - F Villarroya
- Department of Biochemistry and Molecular Biomedicine. Institut de Biomedicina de la Universitat de Barcelona (IBUB), Universitat de Barcelona, Barcelona, Spain.,CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Spain
| | - A Planavila
- Department of Biochemistry and Molecular Biomedicine. Institut de Biomedicina de la Universitat de Barcelona (IBUB), Universitat de Barcelona, Barcelona, Spain.,CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Spain
| | - D Sánchez-Infantes
- Department of Endocrinology and Nutrition, Germans Trias i Pujol Research Institute, Barcelona, Spain and CIBER Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Spain
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30
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Dopazo CP, Moreno P, Olveira JG, Borrego JJ. The theoretical reliability of PCR-based fish viral diagnostic methods is critically affected when they are applied to fish populations with low prevalence and virus loads. J Appl Microbiol 2017; 124:977-989. [PMID: 28915317 DOI: 10.1111/jam.13586] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [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: 06/01/2017] [Revised: 09/06/2017] [Accepted: 09/06/2017] [Indexed: 11/30/2022]
Abstract
AIMS The reliability of polymerase chain reaction (PCR) techniques is an important issue in viral diagnosis, and it is even crucial when they must be applied for detection of viruses in asymptomatic carriers. The problems will arise when the aim is to study wild fish populations, where the viral loads and prevalence values are extremely low. We have evaluated several PCR procedures employed by two laboratories for monitoring fish captured in several oceanographic campaigns performed in the Gulf of Cádiz. METHODS AND RESULTS To evaluate the reliability of different diagnostics test used, we have re-analysed fish samples that had been previously subjected to diagnosis for a surveillance of viruses performed in 2010-2011 in wild fish populations. The following parameters were employed: the clinical sensitivity (Ss), the clinical specificity (Sp), the predictive positive value, the predictive negative value, and the positive and negative likelihood ratio (LR+ and LR- ). For viral nervous necrosis virus, a RT-PCR procedure supplemented by nested PCR showed the highest values (100%) for all the parameters. For viral haemorrhagic septicaemia virus, the highest values were provided by RT-PCR supplemented by dot-blot hybridization. In the case of infectious pancreatic necrosis virus, none of the procedures yielded 100% for any parameter. CONCLUSIONS The results obtained for viral prevalence indicate: (i) that the conservation of the samples at -80°C did not affect to the capacity of detection of the virus in the tissues, and (ii) that the reproducibility of the diagnosis can be affected by factors including the staff experience and/or the materials employed. Finally, the use of a combination of procedures in advised to ensure the maximum reliability of the diagnosis when it is applied to asymptomatic fish populations. SIGNIFICANCE AND IMPACT OF THE STUDY This paper describes a strategy of combining diagnostic tests for the surveillance and monitoring of wild fish populations to reduce underestimation of the prevalence of viruses this type of populations.
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Affiliation(s)
- C P Dopazo
- Unidad de Ictiopatología-Patologia Viral, Departamento de Microbiología y Parasitologia, Instituto de Acuicultura, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - P Moreno
- Departamento de Microbiología, Facultad de Ciencias, Universidad de Malaga, Malaga, Spain
| | - J G Olveira
- Unidad de Ictiopatología-Patologia Viral, Departamento de Microbiología y Parasitologia, Instituto de Acuicultura, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - J J Borrego
- Departamento de Microbiología, Facultad de Ciencias, Universidad de Malaga, Malaga, Spain
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Mirón Mombiela R, Facal de Castro F, Moreno P, Borras C. Ultrasonic Echo Intensity as a New Noninvasive In Vivo Biomarker of Frailty. J Am Geriatr Soc 2017; 65:2685-2690. [DOI: 10.1111/jgs.15002] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Rebeca Mirón Mombiela
- Hospital General Universitario de Valencia; Valencia Spain
- Department of Physiology; Universidad de Valencia/INCLIVA; Valencia Spain
| | | | - Pilar Moreno
- Hospital General Universitario de Valencia; Valencia Spain
| | - Consuelo Borras
- Department of Physiology; Universidad de Valencia/INCLIVA; Valencia Spain
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Vogel B, Chandrasekhar J, Farhan S, Sartori S, Giustino G, Snyder C, Kovacic J, Moreno P, Barman N, Sweeny J, Vijay P, Dangas G, Mehran R, Kini A, Sharma S. 2927Sex-related differences in patients undergoing complex coronary interventions in the era of 2nd generation DES. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.2927] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Vogel B, Baber U, Chandrasekhar J, Sartori S, Farhan S, Sorrentino S, Kovacic J, Moreno P, Barman N, Sweeny J, Shah S, Dangas G, Mehran R, Kini A, Sharma S. P2069Multivessel PCI versus culprit-vessel only PCI in patients with acute myocardial infarction and multivessel disease. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p2069] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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34
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Farhan S, Vogel B, Baber U, Sartori S, Sorrentino S, Nitin B, Vijay P, Kovacic J, Sweeny J, Moreno P, Giustino G, Dangas G, Mehran R, Kini A, Sharma S. P2331Association between serum osmolality and acute kidney injury after percutaneous coronary intervention: a simple tool for acute kidney injury prediction. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p2331] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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35
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Bosch X, Montori E, Guerra-García M, Costa-Rodríguez J, Quintanilla MH, Tolosa-Chapasian PE, Moreno P, Guasch N, López-Soto A. Haemoglobin responses to transfusion in severe iron deficiency anaemia: potential impact of gastrointestinal disorders. Vox Sang 2017; 112:257-267. [PMID: 28198025 DOI: 10.1111/vox.12491] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Revised: 12/19/2016] [Accepted: 12/28/2016] [Indexed: 02/06/2023]
Abstract
BACKGROUND AND OBJECTIVES Red blood cell (RBC) transfusion may be justified in iron deficiency anaemia (IDA) when an increase in oxygen delivery is needed, as sometimes occurs in subjects with haemoglobin <8·0 mg/dL, serious comorbidities or at risk of cardiovascular instability. Earlier investigations showed that some patients with severe IDA requiring transfusion had lower than expected post-transfusion haemoglobin levels with poorer clinical outcomes than other patients. After hypothesizing that haemoglobin responses to transfusion were different and that the underlying gastrointestinal (GI) disorders causing IDA could be a confounder explaining this association, these responses were analysed in a prospective cohort of IDA adults referred for outpatient GI investigation. MATERIALS AND METHODS Transfused patients with proven IDA, baseline haemoglobin at referral <9·0 g/dL and no extraintestinal bleeding were eligible. To assess a homogeneous population, only GI disorders known to cause occult bleeding were considered. Haemoglobin increments per 100 mL of RBCs were investigated. RESULTS In total, 2818 patients were enrolled over 10·5 years. On multivariable regression, diffuse angiodysplasias and GI cancer independently predicted for reduced increments in post-transfusion haemoglobin [adjusted regression coefficients: -0·082 (95% confidence interval, -0·093 to -0·072) and -0·073 (95% confidence interval, -0·081 to -0·066), respectively, P < 0·001 in both]. Haemoglobin responses in the remaining bleeding disorders were adequate and agreed with the principle that one RBC unit increases the haemoglobin an average of 1 g/dL. CONCLUSION The potential differential impact of GI disorders on changes in haemoglobin levels after RBC transfusion could be useful for transfusing physicians, especially for diagnostic purposes.
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Affiliation(s)
- X Bosch
- Quick Diagnosis Unit, Adult Day Care Center, Hospital Clínic, University of Barcelona, Barcelona, Spain.,Department of Internal Medicine, Hospital Clínic, University of Barcelona, Barcelona, Spain
| | - E Montori
- Quick Diagnosis Unit, Department of Internal Medicine, Hospital Plató, Barcelona, Spain
| | - M Guerra-García
- Quick Diagnosis Unit, Adult Day Care Center, Hospital Clínic, University of Barcelona, Barcelona, Spain
| | | | - M H Quintanilla
- Department of Internal Medicine, Hospital San Roque, Gonnet, La Plata, Argentina
| | | | - P Moreno
- Department of Internal Medicine, Hospital Clínic, University of Barcelona, Barcelona, Spain
| | - N Guasch
- Quick Diagnosis Unit, Adult Day Care Center, Hospital Clínic, University of Barcelona, Barcelona, Spain
| | - A López-Soto
- Department of Internal Medicine, Hospital Clínic, University of Barcelona, Barcelona, Spain
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36
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Taraborelli P, Torres MEM, Gregorio PF, Moreno P, Rago V, Panebianco A, Schroeder NM, Ovejero R, Carmanchahi P. Different responses of free-ranging wild guanacos (Lama guanicoe) to shearing operations: implications for better management practices in wildlife exploitation. Anim Welf 2017. [DOI: 10.7120/09627286.26.1.049] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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37
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Grogono DM, Bryant JM, Rodriguez-Rincon D, Everall I, Brown KP, Moreno P, Verma D, Hill E, Drijkoningen J, Haworth CS, Harris SR, Ordway D, Parkhill J, Floto RA. T4 Global spread of mycobacterium abscessus clones amongst cystic fibrosis patient. Thorax 2016. [DOI: 10.1136/thoraxjnl-2016-209333.4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Abstract
Zika virus (ZIKV) is an arthropod-borne Flavivirus (family Flaviviridae) closely related to dengue, yellow fever and West Nile viruses. ZIKV remained neglected, confined to enzootic transmission cycles in Africa and Asia, until the first significant outbreak was reported in Micronesia in 2007. Subsequent epidemics of growing incidence occurred in French Polynesia and other South Pacific Islands, and recently, in the Americas. The latter and currently ongoing outbreak of unprecedented incidence revealed the association of ZIKV infection with the occurrence of severe congenital malformations and neurological diseases, leading to a widespread concern about its potential to pose a global public health threat. Serological and molecular data suggest that the genetic and geographic diversification of ZIKV may be greatly underestimated. Here we discuss several ecological and epidemiological aspects, together with the evolutionary processes that may have driven the emergence and abrupt spread of ZIKV in the Americas.
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Affiliation(s)
| | | | - Pilar Moreno
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la RepúblicaMontevideo, Uruguay
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39
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Echeverría N, Betancour G, Gámbaro F, Hernández N, López P, Chiodi D, Sánchez A, Boschi S, Fajardo A, Sóñora M, Moratorio G, Cristina J, Moreno P. Naturally occurring NS3 resistance-associated variants in hepatitis C virus genotype 1: Their relevance for developing countries. Virus Res 2016; 223:140-6. [PMID: 27449600 DOI: 10.1016/j.virusres.2016.07.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Revised: 07/15/2016] [Accepted: 07/18/2016] [Indexed: 01/20/2023]
Abstract
Hepatitis C virus (HCV) is a major cause of global morbidity and mortality, with an estimated 130-150 million infected individuals worldwide. HCV is a leading cause of chronic liver diseases including cirrhosis and hepatocellular carcinoma. Current treatment options in developing countries involve pegylated interferon-α and ribavirin as dual therapy or in combination with one or more direct-acting antiviral agents (DAA). The emergence of resistance-associated variants (RAVs) after treatment reveals the great variability of this virus leading to a great difficulty in developing effective antiviral strategies. Baseline RAVs detected in DAA treatment-naïve HCV-infected patients could be of great importance for clinical management and outcome prediction. Although the frequency of naturally occurring HCV NS3 protease inhibitor mutations has been addressed in many countries, there are only a few reports on their prevalence in South America. In this study, we investigated the presence of RAVs in the HCV NS3 serine protease region by analysing a cohort of Uruguayan patients with chronic hepatitis C who had not been treated with any DAAs and compare them with the results found for other South American countries. The results of these studies revealed that naturally occurring mutations conferring resistance to NS3 inhibitors exist in a substantial proportion of Uruguayan treatment-naïve patients infected with HCV genotype 1 enrolled in these studies. The identification of these baseline RAVs could be of great importance for patients' management and outcome prediction in developing countries.
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Affiliation(s)
- Natalia Echeverría
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, 11400 Montevideo, Uruguay
| | - Gabriela Betancour
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, 11400 Montevideo, Uruguay
| | - Fabiana Gámbaro
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, 11400 Montevideo, Uruguay
| | - Nelia Hernández
- Clínica de Gastroenterología, Hospital de Clínicas, Facultad de Medicina, Universidad de la República, 11600 Montevideo, Uruguay
| | - Pablo López
- Clínica de Gastroenterología, Hospital de Clínicas, Facultad de Medicina, Universidad de la República, 11600 Montevideo, Uruguay
| | - Daniela Chiodi
- Clínica de Gastroenterología, Hospital de Clínicas, Facultad de Medicina, Universidad de la República, 11600 Montevideo, Uruguay
| | - Adriana Sánchez
- Clínica de Gastroenterología, Hospital de Clínicas, Facultad de Medicina, Universidad de la República, 11600 Montevideo, Uruguay
| | - Susana Boschi
- Laboratorio de Biología Molecular, Asociación Española, Palmar 1465, Montevideo, Uruguay, Uruguay
| | - Alvaro Fajardo
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, 11400 Montevideo, Uruguay
| | - Martín Sóñora
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, 11400 Montevideo, Uruguay
| | - Gonzalo Moratorio
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, 11400 Montevideo, Uruguay
| | - Juan Cristina
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, 11400 Montevideo, Uruguay
| | - Pilar Moreno
- Laboratorio de Virología Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, 11400 Montevideo, Uruguay.
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Fajardo A, Soñora M, Moreno P, Moratorio G, Cristina J. Bayesian coalescent inference reveals high evolutionary rates and diversification of Zika virus populations. J Med Virol 2016; 88:1672-6. [PMID: 27278855 DOI: 10.1002/jmv.24596] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/02/2016] [Indexed: 11/10/2022]
Abstract
Zika virus (ZIKV) is a member of the family Flaviviridae. In 2015, ZIKV triggered an epidemic in Brazil and spread across Latin America. By May of 2016, the World Health Organization warns over spread of ZIKV beyond this region. Detailed studies on the mode of evolution of ZIKV strains are extremely important for our understanding of the emergence and spread of ZIKV populations. In order to gain insight into these matters, a Bayesian coalescent Markov Chain Monte Carlo analysis of complete genome sequences of recently isolated ZIKV strains was performed. The results of these studies revealed a mean rate of evolution of 1.20 × 10(-3) nucleotide substitutions per site per year (s/s/y) for ZIKV strains enrolled in this study. Several variants isolated in China are grouped together with all strains isolated in Latin America. Another genetic group composed exclusively by Chinese strains were also observed, suggesting the co-circulation of different genetic lineages in China. These findings indicate a high level of diversification of ZIKV populations. Strains isolated from microcephaly cases do not share amino acid substitutions, suggesting that other factors besides viral genetic differences may play a role for the proposed pathogenesis caused by ZIKV infection. J. Med. Virol. 88:1672-1676, 2016. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Alvaro Fajardo
- Molecular Virology Laboratory, CIN, Facultad de Ciencias, Universidad de la Republica, Montevideo, Uruguay
| | - Martín Soñora
- Molecular Virology Laboratory, CIN, Facultad de Ciencias, Universidad de la Republica, Montevideo, Uruguay
| | - Pilar Moreno
- Molecular Virology Laboratory, CIN, Facultad de Ciencias, Universidad de la Republica, Montevideo, Uruguay
| | - Gonzalo Moratorio
- Molecular Virology Laboratory, CIN, Facultad de Ciencias, Universidad de la Republica, Montevideo, Uruguay.,Viral Populations and Pathogenesis laboratory. Institut Pasteur, Paris, France
| | - Juan Cristina
- Molecular Virology Laboratory, CIN, Facultad de Ciencias, Universidad de la Republica, Montevideo, Uruguay
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Prim MP, De Diego JI, Moreno P, Madero R, Gavilan J. Status of Internal Jugular Veins in Patients with Carcinomas of the Head and Neck Area. Otolaryngol Head Neck Surg 2016; 131:494-6. [PMID: 15467624 DOI: 10.1016/j.otohns.2004.02.043] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
OBJECTIVE: To assess the status of internal jugular veins (IJV) in patients with head and neck carcinomas. STUDY DESIGN AND SETTING: This study included 108 IJV of 54 cancer patients who were prospectively evaluated between September 1994 and February 1997. Patency, presence of thrombosis, characteristics of vein wall, compressibility, area of the veins both in rest and during Valsalva maneuver, expiratory flow speed, Valsalva flow speed, jugular flow in each side, and total jugular flow were registered in all cases. Also, 30 IJV of 15 normal volunteers were used as a control group. The study was performed in a tertiary care referral center. RESULTS: Right expiratory flow speed was higher in volunteers ( P = 0.0280), and left basal area was bigger in oncologic patients ( P = 0.0394). No significant changes were found between cancer patients and controls in the remaining parameters ( P > 0.05). CONCLUSIONS AND SIGNIFICANCE: According to these results, head and neck carcinomas do not seem to affect the ultrasonographic characteristics of IJV. Thus, preoperative evaluation of IJV is not mandatory in these patients.
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Affiliation(s)
- M P Prim
- Department of Otorhinolaryngology, La Paz Hospital, Autonomous University of Madrid, Spain.
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García-Limones C, Lara-Chica M, Jiménez-Jiménez C, Pérez M, Moreno P, Muñoz E, Calzado MA. CHK2 stability is regulated by the E3 ubiquitin ligase SIAH2. Oncogene 2016; 35:4289-301. [PMID: 26751770 DOI: 10.1038/onc.2015.495] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Revised: 11/24/2015] [Accepted: 11/27/2015] [Indexed: 01/14/2023]
Abstract
The serine threonine checkpoint kinase 2 (CHK2) is a critical protein involved in the DNA damage-response pathway, which is activated by phosphorylation inducing cellular response such as DNA repair, cell-cycle regulation or apoptosis. Although CHK2 activation mechanisms have been amply described, very little is known about degradation control processes. In the present study, we identify the ubiquitin E3 ligase SIAH2 as an interaction partner of CHK2, which mediates its ubiquitination and proteasomal degradation. CHK2 degradation is independent of both its activation and its kinase activity, but also of the phosphorylation in S456. We show that SIAH2-deficient cells present CHK2 accumulation together with lower ubiquitination levels. Accordingly, SIAH2 depletion by siRNA increases CHK2 levels. In response to DNA damage induced by etoposide, interaction between both proteins is disrupted, thus avoiding CHK2 degradation and promoting its stabilization. We also found that CHK2 phosphorylates SIAH2 at three residues (Thr26, Ser28 and Thr119), modifying its ability to regulate certain substrates. Cellular arrest in the G2/M phase induced by DNA damage is reverted by SIAH2 expression through the control of CHK2 levels. We observed that hypoxia decreases CHK2 levels in parallel to SIAH2 induction. Similarly, we provide evidence suggesting that resistance to apoptosis induced by genotoxic agents in cells subjected to hypoxia could be partly explained by the mutual regulation between both proteins. These results indicate that SIAH2 regulates CHK2 basal turnover, with important consequences on cell-cycle control and on the ability of hypoxia to alter the DNA damage-response pathway in cancer cells.
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Affiliation(s)
- C García-Limones
- Department of Cell Biology, Physiology and Immunology, University of Córdoba, Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC)/Hospital, Universitario Reina Sofía, Córdoba, Spain
| | - M Lara-Chica
- Department of Cell Biology, Physiology and Immunology, University of Córdoba, Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC)/Hospital, Universitario Reina Sofía, Córdoba, Spain
| | - C Jiménez-Jiménez
- Department of Cell Biology, Physiology and Immunology, University of Córdoba, Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC)/Hospital, Universitario Reina Sofía, Córdoba, Spain
| | - M Pérez
- Department of Cell Biology, Physiology and Immunology, University of Córdoba, Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC)/Hospital, Universitario Reina Sofía, Córdoba, Spain
| | - P Moreno
- Department of Cell Biology, Physiology and Immunology, University of Córdoba, Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC)/Hospital, Universitario Reina Sofía, Córdoba, Spain
| | - E Muñoz
- Department of Cell Biology, Physiology and Immunology, University of Córdoba, Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC)/Hospital, Universitario Reina Sofía, Córdoba, Spain
| | - M A Calzado
- Department of Cell Biology, Physiology and Immunology, University of Córdoba, Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC)/Hospital, Universitario Reina Sofía, Córdoba, Spain
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Soñora M, Moreno P, Echeverría N, Fischer S, Comas V, Fajardo A, Cristina J. An evolutionary insight into Newcastle disease viruses isolated in Antarctica. Arch Virol 2015; 160:1893-900. [PMID: 26014920 DOI: 10.1007/s00705-015-2434-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2014] [Accepted: 04/17/2015] [Indexed: 11/25/2022]
Abstract
The disease caused by Newcastle disease virus (NDV) is a severe threat to the poultry industry worldwide. Recently, NDV has been isolated in the Antarctic region. Detailed studies on the mode of evolution of NDV strains isolated worldwide are relevant for our understanding of the evolutionary history of NDV. For this reason, we have performed Bayesian coalescent analysis of NDV strains isolated in Antarctica to study evolutionary rates, population dynamics, and patterns of evolution. Analysis of F protein cleavage-site sequences of NDV isolates from Antarctica suggested that these strains are lentogenic. Strains isolated in Antarctica and genotype I reference strain Ulster/67 diverged from ancestors that existed around 1958. The time of the most recent common ancestor (MRCA) was established to be around 1883 for all class II viruses. A mean rate of evolution of 1.78 × 10(-3) substitutions per site per year (s/s/y) was obtained for the F gene sequences of NDV strains examined in this study. A Bayesian skyline plot indicated a decline in NDV population size in the last 25 years. The results are discussed in terms of the possible role of Antarctica in emerging or re-emerging viruses and the evolution of NDV populations worldwide.
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Affiliation(s)
- Martin Soñora
- Laboratorio de Virologia Molecular, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la Republica, Igua 4225, 11400, Montevideo, Uruguay
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Moreno RA, Moreno P, Borges NC, Donato JL, Oliveira SE, Borges NC. Finasteride Quantification in Human Plasma by High-Performance Liquid Chromatography Coupled to Electrospray Ionization Tandem Mass Spectrometry. Application to a Comparative Pharmacokinetics Study. Drug Res (Stuttg) 2015; 65:449-56. [PMID: 25919644 DOI: 10.1055/s-0034-1376962] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
A specific, fast and sensitive LC-MS/MS assay was developed for the determination of finasteride in human plasma using betamethsone dipropionate as the internal standard (IS). The limit of quantification was 1.0 ng/ml and the method was linear in the range of 1.0-25.0 ng/ml. The retention times were 0.75 min for finasteride and 0.85 min for IS. Method intra-batch precision and accuracy ranged from 3.6 to 7.1%, and 96.6 to 103.9%, respectively. Inter-batch precision ranged from 2.5 to 3.4%, while Inter-batch accuracy ranged from 100.3 to 103.5%. The analytical method was applied to evaluate the pharmacokinetic and relative bioavailability of 2 different pharmaceutical formulations containing 1.0 mg of finasteride. This study evaluated 38 volunteers in a randomized, 2-period crossover study with 7 days washout period between doses. The geometric mean and respective 90% CI of finasteride test/reference percent ratios were 95.68% (91.2 - 104.6%) for Cmax, 97.5% (92.1-103.3%) for AUC0-t and 98.1 (92.67-103.8) for AUC0-inf. Based on the 90% confidence interval of the individual ratios (test formulation/reference formulation) for Cmax and AUC0-inf, it was concluded that the test formulation is bioequivalent to the reference one with respect to the rate and extent of absorption of finasteride.
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Affiliation(s)
- R A Moreno
- Synchrophar Assessoria e Desenvolvimento de Projetos Clínicos, Campinas, SP, Brazil
| | - P Moreno
- Synchrophar Assessoria e Desenvolvimento de Projetos Clínicos, Campinas, SP, Brazil
| | - N C Borges
- Faculdade de Medicina da Santa Casa de São Paulo, São Paulo/SP, Brazil
| | - J L Donato
- Synchrophar Assessoria e Desenvolvimento de Projetos Clínicos, Campinas, SP, Brazil
| | - S E Oliveira
- Synchrophar Assessoria e Desenvolvimento de Projetos Clínicos, Campinas, SP, Brazil
| | - N C Borges
- Synchrophar Assessoria e Desenvolvimento de Projetos Clínicos, Campinas, SP, Brazil
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Echeverría N, Moratorio G, Cristina J, Moreno P. Hepatitis C virus genetic variability and evolution. World J Hepatol 2015; 7:831-845. [PMID: 25937861 PMCID: PMC4411526 DOI: 10.4254/wjh.v7.i6.831] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2014] [Revised: 12/22/2014] [Accepted: 02/11/2015] [Indexed: 02/06/2023] Open
Abstract
Hepatitis C virus (HCV) has infected over 170 million people worldwide and creates a huge disease burden due to chronic, progressive liver disease. HCV is a single-stranded, positive sense, RNA virus, member of the Flaviviridae family. The high error rate of RNA-dependent RNA polymerase and the pressure exerted by the host immune system, has driven the evolution of HCV into 7 different genotypes and more than 67 subtypes. HCV evolves by means of different mechanisms of genetic variation. On the one hand, its high mutation rates generate the production of a large number of different but closely related viral variants during infection, usually referred to as a quasispecies. The great quasispecies variability of HCV has also therapeutic implications since the continuous generation and selection of resistant or fitter variants within the quasispecies spectrum might allow viruses to escape control by antiviral drugs. On the other hand HCV exploits recombination to ensure its survival. This enormous viral diversity together with some host factors has made it difficult to control viral dispersal. Current treatment options involve pegylated interferon-α and ribavirin as dual therapy or in combination with a direct-acting antiviral drug, depending on the country. Despite all the efforts put into antiviral therapy studies, eradication of the virus or the development of a preventive vaccine has been unsuccessful so far. This review focuses on current available data reported to date on the genetic mechanisms driving the molecular evolution of HCV populations and its relation with the antiviral therapies designed to control HCV infection.
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Rodríguez-Gutiérrez MJ, Moreno P, Tejada P. Entrepreneurial orientation and performance of SMEs in the services industry. Journal of Organizational Change Management 2015. [DOI: 10.1108/jocm-01-2015-0020] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Purpose
– The purpose of this paper is to examine both the sources of competitiveness of small and medium- sized enterprises (SMEs) in the services industry measured by their capability to grow, and the relative importance of each of these sources. More specifically, the resources and capabilities of Spanish SMEs in the services industry that may become sources of competitive advantage are analysed.
Design/methodology/approach
– In order to achieve this objective, this paper is organized as follows. First, a concise overview of prior research on determinants of performance of SMES is provided, outlining the role of factors regarding resources and capabilities. Second, a set of lineal regression models are performed to test the hypothesis research. In line with several previous studies, competitive success and performance of the company are approached through the recent evolution of firms in terms of employment, turnover and productive investment. The data set comes from a survey on Spanish SMEs operating in the services industry that was carried out between the end of 2010 and the beginning of 2011.
Findings
– The findings reveal that entrepreneur characteristics, firm features and managerial attributes have significant effect on the business performance. The results from the empirical analysis indicate that competitive success of the Spanish SMEs in the service industry is conditioned by macroeconomic and social factors related to the general business environment and especially by business factors concerning the entrepreneurial orientation of the firm, these findings are consistent with those of earlier research conducted at both an international level a national level.
Originality/value
– The fundamental contribution of SMEs to the overall performance of the economy constitutes a crucial motive for researchers to investigate and examine the key success factors behind these enterprises. This issue has been analysed exhaustively for the manufactured goods industry, but has scarcely been addressed for the services industry. Thus, further research is needed to clarify the variables explaining survival and success for services SMEs. Furthermore, since this research is focused on the microeconomic level, by considering the firm as the unit of analysis, it contributes towards complementing previous research on this topic that has been conducted from a macroeconomic approach. Thus it attempts to provide certain empirical evidences for support the traditional academic debate between economic and administrative disciplines concerning the appropriate unit of analysis for the understanding and explanation of businesses competitiveness.
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Cristina J, Moreno P, Moratorio G, Musto H. Genome-wide analysis of codon usage bias in Ebolavirus. Virus Res 2015; 196:87-93. [DOI: 10.1016/j.virusres.2014.11.005] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2014] [Revised: 10/31/2014] [Accepted: 11/06/2014] [Indexed: 10/24/2022]
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Saura RM, Moreno P, Vallejo P, Oliva G, Alava F, Esquerra M, Davins J, Vallès R, Bañeres J. [Design, implementation and evaluation of a management model of patient safety in hospitals in Catalonia, Spain]. Med Clin (Barc) 2014; 143 Suppl 1:48-54. [PMID: 25128360 DOI: 10.1016/j.medcli.2014.07.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Since its inception in 2006, the Alliance for Patient Safety in Catalonia has played a major role in promoting and shaping a series of projects related to the strategy of the Ministry of Health, Social Services and Equality, for improving patient safety. One such project was the creation of functional units or committees of safety in hospitals in order to facilitate the management of patient safety. The strategy has been implemented in hospitals in Catalonia which were selected based on criteria of representativeness. The intervention was based on two lines of action, one to develop the model framework and the other for its development. Firstly the strategy for safety management based on EFQM (European Foundation for Quality Management) was defined with the development of standards, targets and indicators to implement security while the second part involved the introduction of tools, methodologies and knowledge to the management support of patient safety and risk prevention. The project was developed in four hospital areas considered higher risk, each assuming six goals for safety management. Some of these targets such as the security control panel or system of adverse event reporting were shared. 23 hospitals joined the project in Catalonia. Despite the different situations in each centre, high compliance was achieved in the development of the objectives. In each of the participating areas the security control panel was developed. Stable structures for safety management were established or strengthened. Training in patient safety played and important role, 1415 professionals participated. Through these kind of projects not only have been introduced programs of proven effectiveness in reducing risks, but they also provide to the facilities a work system that allows autonomy in diagnosis and analysis of the different risk situations or centre specific safety issues.
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Affiliation(s)
| | - Pilar Moreno
- Institut Universitari Avedis Donabedian, Barcelona, España
| | - Paula Vallejo
- Institut Universitari Avedis Donabedian, Barcelona, España
| | - Glòria Oliva
- Departament de Salut, Generalitat de Catalunya, Barcelona, España
| | - Fernando Alava
- Departament de Salut, Generalitat de Catalunya, Barcelona, España
| | - Miquel Esquerra
- Departament de Salut, Generalitat de Catalunya, Barcelona, España
| | - Josep Davins
- Departament de Salut, Generalitat de Catalunya, Barcelona, España
| | - Roser Vallès
- Departament de Salut, Generalitat de Catalunya, Barcelona, España
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Fischer S, Echeverría N, Moratorio G, Landoni AI, Dighiero G, Cristina J, Oppezzo P, Moreno P. Human endogenous retrovirus np9 gene is over expressed in chronic lymphocytic leukemia patients. Leuk Res Rep 2014; 3:70-2. [PMID: 25180156 PMCID: PMC4145164 DOI: 10.1016/j.lrr.2014.06.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2014] [Revised: 06/06/2014] [Accepted: 06/24/2014] [Indexed: 12/23/2022] Open
Abstract
The human genome contains a large number of endogenous retroviruses (HERVs). Their reactivation has frequently been observed in patients with cancer. Considering their role in the carcinogenesis process, we aimed to study the possible relationship between HERVs gene expression and Chronic Lymphocytic Leukemia (CLL). We focused on two viral genes gag and np9, the latter presumably an oncogene. We found that the transcriptional activity of HERV-K np9 gene was greater in CLL patients than in healthy donors. However, gag expression was not significantly increased. These findings suggest a noteworthy relationship between CLL disease and HERV-K np9 expression. We study the possible relationship between HERVs gene expression and CLL. CLL patients express np9 gene at least 5 times higher than in healthy donors. The gag gene expression was not significantly increased in CLL samples. The expression level of the c-myc was not modified by the over expression of np9. This work suggests a possible relationship between CLL and HERV-K np9 expression.
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Affiliation(s)
- Sabrina Fischer
- Laboratory of Molecular Virology, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay
| | - Natalia Echeverría
- Laboratory of Molecular Virology, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay
| | - Gonzalo Moratorio
- Laboratory of Molecular Virology, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay ; Department of Virology, Institut Pasteur, Paris, France
| | - Ana Inés Landoni
- Service of Hematology and Bone Marrow Transplantation, Hospital Maciel, Montevideo, Uruguay
| | | | - Juan Cristina
- Laboratory of Molecular Virology, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay
| | - Pablo Oppezzo
- Protein Recombinant Unit, Institut Pasteur, Montevideo, Uruguay
| | - Pilar Moreno
- Laboratory of Molecular Virology, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay ; Protein Recombinant Unit, Institut Pasteur, Montevideo, Uruguay
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Sánchez-Alonso I, Moreno P, Careche M. Low field nuclear magnetic resonance (LF-NMR) relaxometry in hake (Merluccius merluccius, L.) muscle after different freezing and storage conditions. Food Chem 2014; 153:250-7. [DOI: 10.1016/j.foodchem.2013.12.060] [Citation(s) in RCA: 101] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2013] [Revised: 11/15/2013] [Accepted: 12/12/2013] [Indexed: 11/28/2022]
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