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Ortega-Balleza JL, Guerrero A, Castro-Escarpulli G, Martínez-Vázquez AV, Cruz-Hernández MA, de Luna-Santillana EDJ, Acosta-Cruz E, Rodríguez-Sánchez IP, Rivera G, Bocanegra-García V. Genomic Analysis of Multidrug-Resistant Escherichia coli Strains Isolated in Tamaulipas, Mexico. Trop Med Infect Dis 2023; 8:458. [PMID: 37888586 PMCID: PMC10610597 DOI: 10.3390/tropicalmed8100458] [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: 08/29/2023] [Revised: 09/19/2023] [Accepted: 09/22/2023] [Indexed: 10/28/2023] Open
Abstract
The global spread of antimicrobial resistance genes (ARGs) is a major public health concern. Mobile genetic elements (MGEs) are the main drivers of this spread by horizontal gene transfer (HGT). Escherichia coli is widespread in various environments and serves as an indicator for monitoring antimicrobial resistance (AMR). Therefore, the objective of this work was to evaluate the whole genome of multidrug-resistant E. coli strains isolated from human clinical, animal, and environmental sources. Four E. coli strains previously isolated from human urine (n = 2), retail meat (n = 1), and water from the Rio Grande River (n = 1) collected in northern Tamaulipas, Mexico, were analyzed. E. coli strains were evaluated for antimicrobial susceptibility, followed by whole genome sequencing and bioinformatic analysis. Several ARGs were detected, including blaCTX-M-15, blaOXA-1, blaTEM-1B, blaCMY-2, qnrB, catB3, sul2, and sul3. Additionally, plasmid replicons (IncFIA, IncFIB, IncFII, IncY, IncR, and Col) and intact prophages were also found. Insertion sequences (ISs) were structurally linked with resistance and virulence genes. Finally, these findings indicate that E. coli strains have a large repertoire of resistance determinants, highlighting a high pathogenic potential and the need to monitor them.
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Affiliation(s)
- Jessica L. Ortega-Balleza
- Instituto Politécnico Nacional, Centro de Biotecnología Genómica, Boulevard del Maestro SN esq. Elías Piña, Col. Narciso Mendoza, Reynosa 88710, Mexico; (J.L.O.-B.); (A.V.M.-V.); (M.A.C.-H.); (E.d.J.d.L.-S.); (G.R.)
| | - Abraham Guerrero
- CONACyT Program, Centro de Investigación en Alimentación y Desarrollo, Mazatlán 82112, Mexico;
| | - Graciela Castro-Escarpulli
- Instituto Politécnico Nacional, Escuela Nacional de Ciencias Biológicas, Ciudad de Mexico 07738, Mexico;
| | - Ana Verónica Martínez-Vázquez
- Instituto Politécnico Nacional, Centro de Biotecnología Genómica, Boulevard del Maestro SN esq. Elías Piña, Col. Narciso Mendoza, Reynosa 88710, Mexico; (J.L.O.-B.); (A.V.M.-V.); (M.A.C.-H.); (E.d.J.d.L.-S.); (G.R.)
| | - María Antonia Cruz-Hernández
- Instituto Politécnico Nacional, Centro de Biotecnología Genómica, Boulevard del Maestro SN esq. Elías Piña, Col. Narciso Mendoza, Reynosa 88710, Mexico; (J.L.O.-B.); (A.V.M.-V.); (M.A.C.-H.); (E.d.J.d.L.-S.); (G.R.)
| | - Erick de Jesús de Luna-Santillana
- Instituto Politécnico Nacional, Centro de Biotecnología Genómica, Boulevard del Maestro SN esq. Elías Piña, Col. Narciso Mendoza, Reynosa 88710, Mexico; (J.L.O.-B.); (A.V.M.-V.); (M.A.C.-H.); (E.d.J.d.L.-S.); (G.R.)
| | - Erika Acosta-Cruz
- Departamento de Biotecnología, Facultad de Ciencias Químicas, Universidad Autónoma de Coahuila, Saltillo Coahuila 25280, Mexico;
| | - Irám Pablo Rodríguez-Sánchez
- Laboratorio de Fisiología Molecular y Estructural, Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León, Ave. Pedro de Alba s/n cruz con Ave. Manuel L. Barragán, San Nicolás de los Garza 66455, Mexico;
| | - Gildardo Rivera
- Instituto Politécnico Nacional, Centro de Biotecnología Genómica, Boulevard del Maestro SN esq. Elías Piña, Col. Narciso Mendoza, Reynosa 88710, Mexico; (J.L.O.-B.); (A.V.M.-V.); (M.A.C.-H.); (E.d.J.d.L.-S.); (G.R.)
| | - Virgilio Bocanegra-García
- Instituto Politécnico Nacional, Centro de Biotecnología Genómica, Boulevard del Maestro SN esq. Elías Piña, Col. Narciso Mendoza, Reynosa 88710, Mexico; (J.L.O.-B.); (A.V.M.-V.); (M.A.C.-H.); (E.d.J.d.L.-S.); (G.R.)
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Mandujano A, Cortés-Espinosa DV, Vásquez-Villanueva J, Guel P, Rivera G, Juárez-Rendón K, Cruz-Pulido WL, Aguilera-Arreola G, Guerrero A, Bocanegra-García V, Martínez-Vázquez AV. Extended-Spectrum β-Lactamase-Producing Escherichia coli Isolated from Food-Producing Animals in Tamaulipas, Mexico. Antibiotics (Basel) 2023; 12:1010. [PMID: 37370329 DOI: 10.3390/antibiotics12061010] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 05/22/2023] [Accepted: 05/30/2023] [Indexed: 06/29/2023] Open
Abstract
Extended-spectrum β-lactamase (ESBL)-producing E. coli has become an important global problem for the public health sector. This study aims to investigate the E. coli antimicrobial resistance profile among living food-producing animals in Tamaulipas, Mexico. A total of 200 fecal samples were collected from bovines, pigs, chickens and sheep. A total of 5.0% of the strains were phenotypically confirmed as ESBL producers. A high percentage of phenotypic antimicrobial resistance was observed against gentamicin (93.3%), tetracycline (86.6%) and streptomycin (83.3%). The gentamicin-resistant strains showed MDR, distributed among 27 resistance patterns to different antimicrobials. The antimicrobial resistance gene tet(A) was detected in 73.3% of isolates, aadA1 in 60.0% and sul2 in 43.3% of strains. The blaCTX-M gene was found in 23.3% of strains. The virulence gene hlyA was detected in 43.3% of isolates; stx1 and stx2 were not detected in any strain. The phylotyping indicated that the isolates belonged to groups A (33.3%), B1 (16.6%), B2 (40.0%) and D (10.0%). These results show that food-producing animals might be a reservoir of ESBL-producing bacteria and may play a role in their spread.
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Affiliation(s)
- Antonio Mandujano
- Centro de Biotecnología Genómica, Instituto Politécnico Nacional, Tamaulipas C.P. 88710, Mexico
| | | | - José Vásquez-Villanueva
- Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Tamaulipas, Cd. Victoria C.P. 87274, Mexico
| | - Paulina Guel
- Centro de Biotecnología Genómica, Instituto Politécnico Nacional, Tamaulipas C.P. 88710, Mexico
| | - Gildardo Rivera
- Centro de Biotecnología Genómica, Instituto Politécnico Nacional, Tamaulipas C.P. 88710, Mexico
| | - Karina Juárez-Rendón
- Centro de Biotecnología Genómica, Instituto Politécnico Nacional, Tamaulipas C.P. 88710, Mexico
| | | | | | - Abraham Guerrero
- Consejo Nacional de Ciencia y Tecnología (CONACyT), Centro de Investigación en Alimentación y Desarrollo (CIAD), Mazatlán C.P. 82100, Mexico
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Vázquez-Villanueva J, Vázquez K, Martínez-Vázquez AV, Wong-González A, Hernández-Escareño J, Cabrero-Martínez O, Cruz-Pulido WL, Guerrero A, Rivera G, Bocanegra-García V. Molecular and Antimicrobial Susceptibility Characterization of Escherichia coli Isolates from Bovine Slaughterhouse Process. Antibiotics (Basel) 2023; 12:antibiotics12020291. [PMID: 36830200 PMCID: PMC9951931 DOI: 10.3390/antibiotics12020291] [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: 12/22/2022] [Revised: 01/26/2023] [Accepted: 01/30/2023] [Indexed: 02/04/2023] Open
Abstract
Antimicrobials are routinely used in human and veterinary medicine. With repeated exposure, antimicrobials promote antibiotic resistance, which poses a threat to public health. In this study, we aimed to determine the susceptibility patterns, virulence factors, and phylogroups of E. coli isolates during the killing process in a bovine slaughterhouse. We analyzed 336 samples (from water, surfaces, carcasses, and feces), and 83.3% (280/336) were positive for E. coli. The most common phenotypic resistances that we detected were 50.7% (142/280) for tetracycline, 44.2% (124/280) for cephalothin, 34.6% (97/280) for streptomycin, and 36.7% (103/280) for ampicillin. A total of 82.4% of the isolates had resistance for at least one antimicrobial, and 37.5% presented multiresistance. We detected a total of 69 different phenotypic resistance patterns. We detected six other resistance-related genes, the most prevalent being tetA (22.5%) and strB (15.7%). The prevalence values of the virulence genes were 5.4% in hlyA, 1.4% in stx1, and 0.7% in stx2. The frequencies of the pathogenic strains (B2 and D) were 32.8% (92/280) and 67.1% (188/280) as commensals A and B1, respectively. E. coli isolates with pathogenic potential and multiresistance may represent an important source of dissemination and a risk to consumers.
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Affiliation(s)
- José Vázquez-Villanueva
- Centro de Biotecnología Genómica of Instituto Politécnico Nacional, Reynosa 88710, Mexico
- Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Nuevo León, Escobedo 66050, Mexico
| | - Karina Vázquez
- Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Nuevo León, Escobedo 66050, Mexico
| | | | - Alfredo Wong-González
- Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Nuevo León, Escobedo 66050, Mexico
| | - Jesus Hernández-Escareño
- Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Nuevo León, Escobedo 66050, Mexico
| | - Omar Cabrero-Martínez
- Centro de Biotecnología Genómica of Instituto Politécnico Nacional, Reynosa 88710, Mexico
| | | | - Abraham Guerrero
- CONACyT Research, Centro de Investigación en Alimentación y Desarrollo, Mazatlán 82112, Mexico
| | - Gildardo Rivera
- Centro de Biotecnología Genómica of Instituto Politécnico Nacional, Reynosa 88710, Mexico
| | - Virgilio Bocanegra-García
- Centro de Biotecnología Genómica of Instituto Politécnico Nacional, Reynosa 88710, Mexico
- Correspondence: or ; Tel.: +52-8999243627 (ext. 87755)
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Moran DM, Guerrero A, Ueno Y, Park JW, Pavese J, Kaneko Y, Matsangou M, Shitara K. Prevalence of claudin 18.2 (CLDN18.2) and the association of biomarkers with clinical activity in patients with gastric or gastroesophageal adenocarcinoma (G/GEJa) treated with zolbetuximab. J Clin Oncol 2023. [DOI: 10.1200/jco.2023.41.4_suppl.466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
466 Background: CLDN18.2, a targetable biomarker, is a tight junction protein normally confined to gastric mucosa of healthy tissue and often retained in G/GEJa. Zolbetuximab, a chimeric IgG1 monoclonal antibody, binds to CLDN18.2 and mediates cancer cell death via antibody-dependent cellular cytotoxicity (ADCC) and complement-dependent cytotoxicity (CDC). Phase 2 FAST study results showed prolonged survival with zolbetuximab+EOX (epirubicin, oxaliplatin, capecitabine) vs EOX in CLDN18.2-positive G/GEJa. In ILUSTRO Cohort 2, confirmed partial responses (PRs) and stable disease (SD) were previously reported in 63.2% and 10.5%, respectively, of patients (pts) treated with zolbetuximab+mFOLFOX6 (modified 5-FU, folinic acid, oxaliplatin). Here is an analysis of CLDN18.2 expression and exploratory biomarkers from 2 studies of zolbetuximab alone or with mFOLFOX6 in G/GEJa. Methods: Data are from phase 1 (NCT03528629) and phase 2 (NCT03505320, ILUSTRO Cohorts 1 and 2) studies. Pts with CLDN18.2-positive locally advanced/metastatic G/GEJa received zolbetuximab alone (phase 1 [ineligible for SOC], n = 18; phase 2 Cohort 1 [≥3rd-line], n = 30) or with mFOLFOX6 (phase 2 Cohort 2 [1st-line], n = 21). Archival (any time before treatment), baseline (during screening or ≤3 months before first study treatment), and on-treatment (Cycle 3) tumor samples were collected when possible. CLDN18.2 expression and immune cell populations were assessed by IHC. Blood samples collected longitudinally while on treatment (phase 2 study) were analyzed for ADCC activity (ex vivo cell-based assay), circulating tumor antigens, and circulating tumor DNA (ctDNA). Results: Of 416 screened pts in both studies, 26.2% (n = 109), 9.6% (n = 40), and 36.1% (n = 150) had tumors that were CLDN18.2-positive in 1%–49%, 50%–74%, and ≥75% of tumor cells ( = strong to moderate staining intensity), respectively; 28.1% (n = 117) were CLDN18.2-negative (0/1+). Analysis of pre- and on-treatment tissue samples (n = 8 matched pairs) with zolbetuximab alone showed an increased trend in immune cell infiltration, with CD8+ T cells and CD163+ cells showing the most consistent trend. A trend of increased on-treatment vs baseline ADCC activity was observed in PBMCs collected from pts treated with zolbetuximab alone and with mFOLFOX6. Rapid and deep decreases in circulating tumor antigens (in pts with elevated antigen levels) and ctDNA were observed with best overall responses of both PR and SD. Conclusions: CLDN18.2 is a high-prevalence biomarker in G/GEJa. Treatment with zolbetuximab is associated with tumor and peripheral biomarker changes related to its proposed mechanism of action. Clinical responses observed in pts treated with zolbetuximab and mFOLFOX6 are associated with correlative biomarkers of activity including rapid deep molecular responses (ctDNA). Clinical trial information: NCT03528629 .
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Affiliation(s)
| | | | - Yoko Ueno
- Astellas Pharma, Inc., Tokyo, IL, Japan
| | | | | | | | | | - Kohei Shitara
- Gastrointestinal Oncology, Department of National Cancer Center Hospital East, Chiba, Japan
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Abdullah JAA, Jimenez-Rosado M, Guerrero A, Romero A. Eco-friendly synthesis of ZnO-nanoparticles using Phoenix dactylifera L. polyphenols: physicochemical, microstructural, and functional assessment. NEW J CHEM 2023. [DOI: 10.1039/d3nj00131h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Recently, nanoparticles (NPs) synthesis has evolved into a green nanotechnology field, requiring more eco-synthesis of nanoparticles due to the high costs of other chemical-physical methods. Among the most commonly used...
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Martínez-Vázquez AV, Mandujano A, Cruz-Gonzalez E, Guerrero A, Vazquez J, Cruz-Pulido WL, Rivera G, Bocanegra-García V. Evaluation of Retail Meat as a Source of ESBL Escherichia coli in Tamaulipas, Mexico. Antibiotics (Basel) 2022; 11:antibiotics11121795. [PMID: 36551452 PMCID: PMC9774973 DOI: 10.3390/antibiotics11121795] [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: 10/31/2022] [Revised: 12/01/2022] [Accepted: 12/07/2022] [Indexed: 12/14/2022] Open
Abstract
In recent decades, the appearance of a group of strains resistant to most β-lactam antibiotics, called extended-spectrum β-lactamases (ESBLs), has greatly impacted the public health sector. The present work aimed to identify the prevalence of ESBL-producing Escherichia coli strains in retail meat from northeast Tamaulipas. A total of 228 meat samples were obtained from 76 different stores. A prevalence of E. coli ESBL of 6.5% (15/228) was detected. All (15/15) of the ESBL strains were multiresistant. Altogether, 40% (6/15) of the strains showed the presence of class 1 integrons. The isolates identified with blaCTX-M (20%) also showed co-resistance with the tet (A and B), str (A and B), and sul (2 and 3) genes. A total of 20% of the strains belonged to the B2 and D phylogroups, which are considered pathogenic groups. None of the ESBL-positive strains contained any of the virulence gene factors tested. The presence of ESBL-producing E. coli strains in meat indicates a potential risk to the consumer. Although most of these strains were classified as commensals, they were found to serve as reservoirs of multiresistance to antimicrobials and, therefore, are potential routes of dispersion of this resistance to other bacteria.
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Affiliation(s)
- Ana Verónica Martínez-Vázquez
- Centro de Biotecnología Genómica of Instituto Politécnico Nacional, Reynosa 88710, Mexico
- Correspondence: (A.V.M.-V.); (V.B.-G.); Tel.: +52-8999243627 (ext. 87753) (V.B.-G.)
| | - Antonio Mandujano
- Centro de Biotecnología Genómica of Instituto Politécnico Nacional, Reynosa 88710, Mexico
| | - Eduardo Cruz-Gonzalez
- Centro de Biotecnología Genómica of Instituto Politécnico Nacional, Reynosa 88710, Mexico
| | - Abraham Guerrero
- CONACyT Research, Centro de Investigación en Alimentación y Desarrollo, Mazatlán 82112, Mexico
| | - Jose Vazquez
- Facultad de Medicina Veterinaria, Universidad Autónoma de Tamaulipas, Cd Victoria 87274, Mexico
| | | | - Gildardo Rivera
- Centro de Biotecnología Genómica of Instituto Politécnico Nacional, Reynosa 88710, Mexico
| | - Virgilio Bocanegra-García
- Centro de Biotecnología Genómica of Instituto Politécnico Nacional, Reynosa 88710, Mexico
- Correspondence: (A.V.M.-V.); (V.B.-G.); Tel.: +52-8999243627 (ext. 87753) (V.B.-G.)
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Guerrero A, Herman A, Teutsch C, Dudovitz R. Improving Knowledge and Attitudes About Child Trauma Among Parents and Staff in Head Start Programs. Matern Child Health J 2022; 26:2237-2246. [PMID: 36002698 PMCID: PMC9401194 DOI: 10.1007/s10995-022-03473-8] [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] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/17/2022] [Indexed: 11/06/2022]
Abstract
Background Early childhood represents a sensitive developmental period when trauma-informed care may mitigate the effects of trauma on developmental and health outcomes. However, few interventions use a low-literacy scalable approach to improve child trauma knowledge and attitudes among parents and early childcare and education caregivers.
Methods Representatives from 24 early head start (EHS) and head start (HS) agencies attended a 2 day online train-the trainer session and then delivered a child trauma and resilience training to staff at their sites, with the option to deliver a similar training to parents. Baseline and 3 month post-training surveys assessed participant knowledge and attitudes regarding childhood trauma and resilience. Paired T-tests and chi2 analyses assessed changes in responses over time. Results Thousand five hundred sixty seven staff from 24 agencies and 443 parents from 7 agencies completed baseline and follow up surveys. Over 55% of parents reported their child had experienced at least one adverse childhood experience. Staff and parents had high knowledge regarding causes of trauma at baseline. Both staff and parents, demonstrated significant improvements in identifying symptoms of child trauma. Staff also improved knowledge of resiliency and toxic stress. Parents reported more positive attitudes towards trauma-informed parenting practices. Conclusion This is the first training on childhood trauma among EHS/HS providers and parents using a low literacy train-the-trainer approach. Results suggest a potentially promising methodology with broad dissemination potential to prepare and train the one million plus teachers and caregivers in center-based settings and the parents and families who access them to recognize and respond to child trauma. Supplementary Information The online version contains supplementary material available at 10.1007/s10995-022-03473-8.
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Affiliation(s)
- A Guerrero
- Department of Pediatrics and Children's Discovery and Innovations Institute, David Geffen School of Medicine, UCLA Mattel Children's Hospital, 10833 LeConte Ave. 12-358 CHS, Los Angeles, CA, 90095, USA
| | - A Herman
- UCLA Health Care Institute, Anderson School of Management, University of California Los Angeles, 110 Westwood Plaza, Los Angeles, CA, 90095, USA
| | - C Teutsch
- UCLA Health Care Institute, Anderson School of Management, University of California Los Angeles, 110 Westwood Plaza, Los Angeles, CA, 90095, USA
| | - R Dudovitz
- Department of Pediatrics and Children's Discovery and Innovations Institute, David Geffen School of Medicine, UCLA Mattel Children's Hospital, 10833 LeConte Ave. 12-358 CHS, Los Angeles, CA, 90095, USA.
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Lopez-Pajares V, Bhaduri A, Zhao Y, Gowrishankar G, Donohue L, Guo M, Guerrero A, Ji A, Garcia O, Gambir S, Khavari P. 419 Glucose controls protein-protein interactions and epidermal differentiation. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.428] [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: 11/16/2022]
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Martin Jimenez M, Rodríguez-Lescure A, Andres Conejero R, Servitja Tormo S, Anton Torres A, Ruiz Borrego M, Bermejo De Las Heras B, Guerrero A, Ramos Vazquez M, Santaballa Bertran A, Munoz M, Batista J, Lopez-Tarruella Cobo S, Chacon Lopez-Muniz J, Alvarez Lopez I, Martinez del Prado M, Miralles J, Polonio O, Jara Sanchez C, Mori de Santiago M. 62P Outcomes of high-risk breast cancer (BC) patients from El Álamo IV registry and GEICAM adjuvant clinical trials. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.03.078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Bernáldez-Sarabia J, Lizárraga-Partida ML, Hernández-López EL, Gasperin-Bulbarela J, Licea-Navarro AF, Guerrero A, Sánchez-Castrejón E, Franco-Moreno A. Distribution of pathogenic vibrios and Vibrio spp. in the water column and sediment samples from the southern Gulf of Mexico. Mar Pollut Bull 2021; 173:113116. [PMID: 34768193 DOI: 10.1016/j.marpolbul.2021.113116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 10/22/2021] [Accepted: 10/31/2021] [Indexed: 06/13/2023]
Abstract
This study quantified the distribution of Vibrio spp. by qPCR and pathogenic vibrio species by metagenomics, during 2 oceanographic cruises-XIXIMI-04 and XIXIMI-05 -in the southern Gulf of Mexico (GoMex). A total of 708 samples from various levels of the water column and 22 sediment samples were analyzed, according to a designed net of sampling lines. Sampling was focused on reported water masses with distinctive characteristics, to detect the presence-absence of vibrios. The results indicated that the genus Vibrio was detected along the entire water column and in sediments. Pathogenic vibrios, such as V, campbellii, V. parahaemolyticus, V. vulnificus or V. cholerae were also detected in the water column and in sediments, in both oceanographic cruises. Thus, the ecological conditions of the GoMex permit the growth of Vibrio spp. in deep water environments of the GoMex, despite continuous oil input from natural and anthropogenic sources.
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Affiliation(s)
- Johanna Bernáldez-Sarabia
- Centro de Investigación Científica y de Educación Superior de Ensenada, Baja California, Carretera Ensenada-Tijuana 3918, zona Playitas, Ensenada, Baja California 22860, Mexico.
| | - Marcial L Lizárraga-Partida
- Centro de Investigación Científica y de Educación Superior de Ensenada, Baja California, Carretera Ensenada-Tijuana 3918, zona Playitas, Ensenada, Baja California 22860, Mexico.
| | - Edna L Hernández-López
- Centro de Investigación Científica y de Educación Superior de Ensenada, Baja California, Carretera Ensenada-Tijuana 3918, zona Playitas, Ensenada, Baja California 22860, Mexico
| | - Jahaziel Gasperin-Bulbarela
- Centro de Investigación Científica y de Educación Superior de Ensenada, Baja California, Carretera Ensenada-Tijuana 3918, zona Playitas, Ensenada, Baja California 22860, Mexico.
| | - Alexei F Licea-Navarro
- Centro de Investigación Científica y de Educación Superior de Ensenada, Baja California, Carretera Ensenada-Tijuana 3918, zona Playitas, Ensenada, Baja California 22860, Mexico.
| | - Abraham Guerrero
- Centro de Investigación Científica y de Educación Superior de Ensenada, Baja California, Carretera Ensenada-Tijuana 3918, zona Playitas, Ensenada, Baja California 22860, Mexico; Cátedras CONACyT-CIAD, Centro de Investigación en Alimentación y Desarrollo, A.C. Unidad Mazatlán, Av. Sábalo Cerritos S/N 82100, Mazatlán, Sinaloa, Mexico.
| | - Edna Sánchez-Castrejón
- Centro de Investigación Científica y de Educación Superior de Ensenada, Baja California, Carretera Ensenada-Tijuana 3918, zona Playitas, Ensenada, Baja California 22860, Mexico.
| | - Andrea Franco-Moreno
- Centro de Investigación Científica y de Educación Superior de Ensenada, Baja California, Carretera Ensenada-Tijuana 3918, zona Playitas, Ensenada, Baja California 22860, Mexico.
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Guerrero A, Gomez-Gil B, Lizarraga-Partida ML. Genomic stability among O3:K6 V. parahaemolyticus pandemic strains isolated between 1996 to 2012 in American countries. BMC Genom Data 2021; 22:38. [PMID: 34579653 PMCID: PMC8477464 DOI: 10.1186/s12863-021-00985-0] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Accepted: 08/20/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The V. parahaemolyticus pandemic clone, results in the development of gastrointestinal illness in humans. Toxigenic strains of this species are frequently isolated from aquatic habitats and organisms such as mollusks and crustaceans. Reports on the isolation of the pandemic clone started in 1996, when a new O3:K6 clone was identified in Asia, that rapidly spread worldwide, becoming the predominant clone isolated from clinical cases. In this study whole genome sequencing was accomplished with an Illumina MiniSeq platform, upon six novel V. parahaemolyticus strains, that have been isolated in Mexico since 1998 and three representative genomes of strains that were isolated from reported outbreaks in other American countries, and were deposited in the GenBank. These nine genomes were compared against the reference sequence of the O3:K6 pandemic strain (RIMD 2210633), which was isolated in 1996, to determine sequence differences within American isolates and between years of isolation. RESULTS The results indicated that strains that were isolated at different times and from different countries, were highly genetically similar, among them as well as to the reference strain RIMD 2210633, indicating a high level of genetic stability among the strains from American countries between 1996 to 2012, without significant genetic changes relative to the reference strain RIMD 2210633, which was isolated in 1996 and was considered to be representative of a novel O3:K6 pandemic strain. CONCLUSIONS The genomes of V. parahaemolyticus strains isolated from clinical and environmental sources in Mexico and other American countries, presented common characteristics that have been reported for RIMD 2210633 O3:K6 pandemic strain. The major variations that were registered in this study corresponded to genes non associated to virulence factors, which could be the result of adaptations to different environmental conditions. Nevertheless, results do not show a clear pattern with the year or locality where the strains were isolated, which is an indication of a genomic stability of the studied strains.
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Affiliation(s)
- Abraham Guerrero
- Cátedras CONACyT-CIAD, Food Research and Development Center A.C. Mazatlán Unit (Centro de Investigación en Alimentación y Desarrollo, A.C. Unidad Mazatlán), Mazatlán, Sinaloa, Mexico.,CIAD, Food Research and Development Center A.C. Mazatlán Unit for Aquaculture, A.P. 711, Mazatlán, Sinaloa, Mexico, 82100
| | - Bruno Gomez-Gil
- CIAD, Food Research and Development Center A.C. Mazatlán Unit for Aquaculture, A.P. 711, Mazatlán, Sinaloa, Mexico, 82100
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12
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Pinto-Cámara R, Linares A, Moreno-Gutiérrez DS, Hernández HO, Martínez-Reyes JD, Rendón-Mancha JM, Wood CD, Guerrero A. FCSlib: an open-source tool for fluorescence fluctuation spectroscopy analysis for mobility, number and molecular brightness in R. Bioinformatics 2021; 37:1930-1931. [PMID: 33051645 DOI: 10.1093/bioinformatics/btaa876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 09/01/2020] [Accepted: 09/28/2020] [Indexed: 11/13/2022] Open
Abstract
SUMMARY FCSlib is an open-source R tool for fluorescence fluctuation spectroscopy data analysis. It encompasses techniques such as Fluorescence Correlation Spectroscopy, Number and Brightness, Pair Correlation Function and Pair Correlation of Molecular Brightness. AVAILABILITY AND IMPLEMENTATION Source code available at https://cran.r-project.org/web/packages/FCSlib/ for Linux, Windows and macOS platforms. Sample data as well as a user's guide are available at https://github.com/FCSlib/FCSlib. SUPPLEMENTARY INFORMATION Supplementary data are available at Bioinformatics online.
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Affiliation(s)
- R Pinto-Cámara
- Departamento de Genética del Desarrollo y Fisiología Molecular, Laboratorio Nacional de Microscopía Avanzada
| | - A Linares
- Departamento de Genética del Desarrollo y Fisiología Molecular, Laboratorio Nacional de Microscopía Avanzada
| | - D S Moreno-Gutiérrez
- Departamento de Computación y Robótica, Instituto de Biotecnología, Universidad Nacional Autónoma de México, 62210 Cuernavaca, Morelos, México
| | - H O Hernández
- Departamento de Ciencias de la Computación, Instituto de Investigaciones en Matemáticas Aplicadas y en Sistemas, Universidad Nacional Autónoma de México, 04510 Ciudad de México, México
| | - J D Martínez-Reyes
- Departamento de Genética del Desarrollo y Fisiología Molecular, Laboratorio Nacional de Microscopía Avanzada
| | - J M Rendón-Mancha
- Centro de Investigación en Ciencias, Instituto de Investigación en Ciencias Básicas y Aplicadas, Universidad Autónoma del Estado de Morelos, 62209 Cuernavaca, Morelos, México
| | - C D Wood
- Departamento de Genética del Desarrollo y Fisiología Molecular, Laboratorio Nacional de Microscopía Avanzada
| | - A Guerrero
- Departamento de Genética del Desarrollo y Fisiología Molecular, Laboratorio Nacional de Microscopía Avanzada
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13
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Sanguinetti M, Cid-Aguayo B, Guerrero A, Durán M, Gomez-Uchida D, Sepúlveda M. Fishers' perception of the interaction between the South American sea lions and the Chinook salmon fishery in southern Chile. Sci Rep 2021; 11:14463. [PMID: 34262083 PMCID: PMC8280164 DOI: 10.1038/s41598-021-93675-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2020] [Accepted: 06/22/2021] [Indexed: 11/15/2022] Open
Abstract
We studied how the South American sea lion (SASL, Otaria flavescens) interacts with the operation of an artisanal fishery of Chinook salmon, a non-native species in Chile, using a combination of biological and social approaches, including a valuation by fishers about this interaction. During austral summer of 2019, an observer onboard artisanal fishing boats characterized the attack behavior of SASLs to gillnet-captured Chinook salmon during 33 hauls and analyzed which factors may affect the intensity of attacks. To analyze the relationship between fishers and SASLs, a Likert scale about the perception and views about nature was applied. A total of 23 interviews—including 35 open and 16 closed questions—with fishers were conducted to describe how they perceived the interactions with SASLs. Interactions with SASLs were recorded in 35% of the fishing events and varied depending on both operational factors, such as the number of boats, as well as environmental factors, such as moon’s luminosity. Even though SASL interactions resulted in seven fish (~ 70 kg) damaged of a total catch of 2815 kg (2.5%) during the survey, boats with a damaged catch by SASL lost up to 11% of their revenue. This is consistent with 87% of the interviewed fishers who considered that the conflict with the SASL negatively impacts their activity and results in economic losses. A negative perception towards SASLs likely results from personal experience and revenue loss, even though impacts of SASL interactions at the scale of the entire fishery may be less important. While older fishers with less formal education have a productivist and instrumental focus, younger fishers with a more sustainable and conservationist view of fishing offer an opportunity to lead an improved local understanding of the relationship between salmon, SASLs, and humans.
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Affiliation(s)
- M Sanguinetti
- Centro de Investigación y Gestión de Recursos Naturales (CIGREN), Universidad de Valparaíso, Gran Bretaña 1111, Playa Ancha, Valparaíso, Chile.,Facultad de Ciencias del Mar, Universidad de Valparaíso, Valparaíso, Chile.,Núcleo Milenio INVASAL, Concepción, Chile
| | - B Cid-Aguayo
- Facultad de Ciencias Sociales, Universidad de Concepción, Concepción, Chile.,Núcleo Milenio INVASAL, Concepción, Chile
| | - A Guerrero
- Centro de Investigación y Gestión de Recursos Naturales (CIGREN), Universidad de Valparaíso, Gran Bretaña 1111, Playa Ancha, Valparaíso, Chile.,Núcleo Milenio INVASAL, Concepción, Chile
| | - M Durán
- Facultad de Ciencias Sociales, Universidad de Concepción, Concepción, Chile.,Núcleo Milenio INVASAL, Concepción, Chile.,Departamento de Sociología, Magister en Investigación Social y Desarrollo, Facultad de Ciencias Sociales, Universidad de Concepción , Concepción, Chile
| | - D Gomez-Uchida
- Núcleo Milenio INVASAL, Concepción, Chile.,Departamento de Zoología, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Concepción, Chile
| | - M Sepúlveda
- Centro de Investigación y Gestión de Recursos Naturales (CIGREN), Universidad de Valparaíso, Gran Bretaña 1111, Playa Ancha, Valparaíso, Chile. .,Núcleo Milenio INVASAL, Concepción, Chile.
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14
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Medrano R, Carranza F, Saucedo E, Guerrero A. Preliminary results of a network meta-analysis on the efficacy of long-acting injectable antipsychotics in schizophrenia. Eur Psychiatry 2021. [PMCID: PMC9471939 DOI: 10.1192/j.eurpsy.2021.433] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Introduction Long-acting injectable antipsychotics (LAIs) are currently the most effective alternative for patients with schizophrenia who exhibit poor adherence. Although a recent meta-analysis reported similar efficacy between first and second-generation LAIs, these results were only based on 3 studies due to the limited number of head-to-head comparisons. Objectives Present the preliminary results of a network meta-analysis on the comparative efficacy of LAIs in schizophrenia. Methods Studies were obtained from a previous study, where we carried out a systematic search from until May 2019 in various databases. Included trials of adults with schizophrenia compared the efficacy of LAI vs LAI or placebo through the Positive and Negative Syndrome Scale (PANSS). Efficacy was evaluated through the mean differences (MD) from baseline to endpoint in the PANSS total scores. Network meta-analysis was performed in MetaInsight through direct and indirect comparisons using a Bayesian approach. Results from 12 studies are presented in Figures 1 and 2. All LAIs except zuclopenthixol were more effective than placebo. There were no significant differences between LAIs except for aripiprazole and risperidone, which were more efficacious than zuclopenthixol. The largest change occurred with aripiprazole LAI, but was not significantly higher than haloperidol.![]() Figure 1. Comparison of treatment pairs. Effect sizes are presented as MD and 95% confidence intervals (*p<0.05).![]() Figure 1. Overall change in symptoms Conclusions Preliminary results from a network meta-analysis also suggest that in the long-term haloperidol decanoate is equally effective in overall symptom changes compared to other LAIs. Further analyses are needed to obtain a better perspective on these drugs. Disclosure No significant relationships.
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15
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Morales-Campos DY, Snipes SA, Villarreal EK, Crocker LC, Guerrero A, Fernandez ME. Cervical cancer, human papillomavirus (HPV), and HPV vaccination: exploring gendered perspectives, knowledge, attitudes, and cultural taboos among Mexican American adults. Ethn Health 2021; 26:206-224. [PMID: 29998738 PMCID: PMC6330137 DOI: 10.1080/13557858.2018.1494821] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Accepted: 06/11/2018] [Indexed: 06/08/2023]
Abstract
Background: Gendered perspectives may be particularly important in shaping norms and values around HPV and HPV vaccination, as previous research suggests that sexuality taboos (e.g. promiscuity) may contribute to low perceived risk among adolescent and young adult Hispanic females. However, research to date focuses primarily on Hispanic mothers, adolescent females, and women of HPV vaccine-eligible age. Hispanic father's perspectives are relatively unknown despite father's important role in shaping norms for their female children. Objective: To close this gap, this study examines gendered perspectives in knowledge, beliefs, and attitudes about HPV and HPV vaccination from Hispanic parents (mothers and fathers), women of vaccine-eligible age (18-26 years old), and women eligible for Pap Test screening (>26 years old) living in two counties along the Texas-Mexico border. Design: We conducted eight focus groups. Research staff transcribed audio recordings verbatim and uploaded them into Atlas(ti) 5.0 for analysis. The research team analyzed the data for content, meaning, patterns and themes using the constant comparison approach. Results: Perspectives were highly gendered. Women's (all groups combined) beliefs focused on misconceptions around how the HPV virus is contracted (e.g. toilet surfaces). Women also linked HPV-related sexual risk to adultery and indiscretion of male partners. Fathers (men) were more likely to link risk to female promiscuity. Fathers also worried that HPV vaccination might increase promiscuity. All groups believe that HPV vaccination is a way to protect Hispanic females in the face of beliefs around sexual behavior and risk of contracting HPV. Conclusion: Results suggest gendered differences in risk beliefs concerning HPV among Hispanics living along the Texas-Mexico border. Researchers can use these findings to address barriers to HPV vaccination, as well as to create culturally appropriate prevention messages that may help reduce disparities in HPV among Hispanic women.
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Affiliation(s)
- Daisy Y. Morales-Campos
- Department of Mexican American and Hispanic/a Studies, The
University of Texas at Austin, Austin, USA
| | - S. A. Snipes
- Department of Biobehavioral Health, The Pennsylvania State
University, University Park, USA
| | | | - L. C. Crocker
- Department of Health Services Research, The University of Texas MD
Anderson Cancer Center, USA
| | - A. Guerrero
- Department of Mexican American and Hispanic/a Studies, The
University of Texas at Austin, Austin, USA
| | - M. E. Fernandez
- Department of Health Promotion and Behavioral Sciences, The
University of Texas School of Public Health, Houston, USA
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16
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Rubio-Valle JF, Perez-Puyana V, Jiménez-Rosado M, Guerrero A, Romero A. Evaluation of smart gelatin matrices for the development of scaffolds via 3D bioprinting. J Mech Behav Biomed Mater 2020; 115:104267. [PMID: 33338962 DOI: 10.1016/j.jmbbm.2020.104267] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 12/05/2020] [Accepted: 12/10/2020] [Indexed: 12/28/2022]
Abstract
Throughout history, different techniques have been used for the development of scaffolds for Tissue Engineering. Among them, three-dimensional (3D) printing for this application has been recently enhanced due to its ease in defining the structure of the material. In this sense, a novel potential alternative could be the development of a three-part device whose leading utility is to improve the introduction of the scaffold in a bioreactor. Thus, the device consists of a polycaprolactone support on which smart gelatin (GE) matrix, and finally, on top, a collagen (C) scaffold. This gelatin matrix is included to integrate the scaffold into the support, but once both are assembled, it must be removed, leaving only the support and the scaffold. Thus, in the present work, a small gelatin matrix has been evaluated. To this end, matrices with different gelatin percentages were studied, evaluating their mechanical and morphological properties at different temperatures (22 and 37 °C) to control their deposition and elimination. The results show the high application of this smart matrix for the development of scaffolds via 3D bioprinting for Tissue Engineering.
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Affiliation(s)
- J F Rubio-Valle
- Departamento de Ingeniería Química, Facultad de Física, Universidad de Sevilla, 41012, Sevilla, Spain.
| | - V Perez-Puyana
- Departamento de Ingeniería Química, Facultad de Química, Universidad de Sevilla, 41012, Sevilla, Spain
| | - M Jiménez-Rosado
- Departamento de Ingeniería Química, Facultad de Química, Universidad de Sevilla, 41012, Sevilla, Spain
| | - A Guerrero
- Departamento de Ingeniería Química, Facultad de Química, Universidad de Sevilla, 41012, Sevilla, Spain
| | - A Romero
- Departamento de Ingeniería Química, Facultad de Física, Universidad de Sevilla, 41012, Sevilla, Spain
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17
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Pardo J, González J, Aymar N, Ortiz I, Rodriguez B, Morera D, Guerrero A, Mena AM, Font J. Statistical control of processes applied to geometric uncertainties for CTV expansion margins determination in prostate cancer patients treated with VMAT: a prospective study in 57 patients. Clin Transl Oncol 2020; 23:1078-1084. [PMID: 32981004 DOI: 10.1007/s12094-020-02493-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Accepted: 09/03/2020] [Indexed: 10/23/2022]
Abstract
PURPOSE To study the control graphs applicability for the geometric uncertainties of VMAT treatments in prostate cancer patients, and their use to verify the hypothesis of the data obtained randomness, to apply the margins of Van Herk expression. MATERIAL AND METHODS During the first 5 days of treatment, and then once a week, a Kv CBCT was performed, compared with the simulation CT and adjusted the displacements, to determine the inter-fraction errors. Immediately after radiation therapy, another CBCT was performed (for intra-fraction errors). With these data, the X, R position control charts have been made. The patients, not maintained the deviations within the charts control limits, were called "anomalies". Then, we compared the deviations and margins calculated with the van Herk expression for all patients and for those without anomalies. RESULTS The margins determined show appreciable differences if there were calculated for the total set of patients or for the set of them without anomalies in the control charts. For the overall set of patients, the lateral, longitudinal, and vertical margins were 0.45 cm, 0.52 cm, 0.56 cm, while for the set of patients without anomalies were 0.29 cm, 0.35 cm, and 0.38 cm. CONCLUSIONS The use of control charts allows tracking geometric deviations both inter and intra-fraction, variability real-time control and to detect situations in which it can change for non-random reasons, and require immediate investigation. Maintaining geometric deviations in the control state decreases the margins needed to administer a high dose to CTV in a high percentage of cancer prostate patients.
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Affiliation(s)
- J Pardo
- Radiation Oncology Department, Hospital Universitari Son Espases, Carretera de Valldemossa 79, 07020, Palma de Mallorca, Spain. .,Hospital Universitari General de Catalunya, Sant Cugat del Vallès, Spain. .,Institut d'Investigació Sanitaria Illes Balears, IdISBA, Palma de Mallorca, Spain.
| | - J González
- Hospital Universitari General de Catalunya, Sant Cugat del Vallès, Spain
| | - N Aymar
- Radiation Oncology Department, Hospital Universitari Son Espases, Carretera de Valldemossa 79, 07020, Palma de Mallorca, Spain.,Institut d'Investigació Sanitaria Illes Balears, IdISBA, Palma de Mallorca, Spain
| | - I Ortiz
- Radiation Oncology Department, Hospital Universitari Son Espases, Carretera de Valldemossa 79, 07020, Palma de Mallorca, Spain.,Institut d'Investigació Sanitaria Illes Balears, IdISBA, Palma de Mallorca, Spain
| | | | - D Morera
- Radiation Oncology Department, Hospital Miramar-Juaneda, Palma de Mallorca, Spain
| | - A Guerrero
- Radiation Oncology Department, Hospital Universitari Son Espases, Carretera de Valldemossa 79, 07020, Palma de Mallorca, Spain.,Institut d'Investigació Sanitaria Illes Balears, IdISBA, Palma de Mallorca, Spain
| | - A M Mena
- Radiation Oncology Department, Hospital Universitari Son Espases, Carretera de Valldemossa 79, 07020, Palma de Mallorca, Spain.,Institut d'Investigació Sanitaria Illes Balears, IdISBA, Palma de Mallorca, Spain
| | - J Font
- Medical Physics Department, Hospital Universitari Son Espases, Palma de Mallorca, Spain
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18
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Zuniga Y, Kraft A, Uezono D, Fajardo M, Obmana S, Genuino A, Guerrero A. Discount Rate Determination for Economic Evaluations in HTA in the Philippines. Eur J Public Health 2020. [DOI: 10.1093/eurpub/ckaa166.581] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
To inform the development of a reference case for economic evaluation, we explored various approaches to determine a base case discount rate and rate options for discounting benefits and costs.
We conducted literature review and expert consultations to list approaches to determine base case discount rates, noting the advantages and disadvantages of each approach. The same methods were used to identify whether different discount rates would be applied to costs and benefits. We computed a social rate of time preference using the Ramsey formula: rc = ρ+μg, where ρ = pure rate of time preference μ= elasticity of the marginal utility of consumption and g= growth rate in per capita income. We assumed ρ = 1%, μ = 1.4% consistent with international practice, but used actual g of the Philippines of 4.5%. We compared this with the official social discount rate and with rate most commonly used internationally. These options were presented to the Philippine Health Technology Assessment Council for decisionmaking.
Based on reviewed literature, 10 out of 22 countries used a 3.0% to 3.5% discount rate while 18 countries from the same pool applied equal discount rates for both costs and outcomes. The official social discount rate (SDR) prescribed by the Philippine National Economic Development Authority is 10% for all social investments. Upon input of the values, rc was calculated at 7%, which is above the international norm but below the official rate. Four discount rate options were identified: 3%, 3.5%, 7% and 10%.
Evidence suggested using a discount rate higher than 3% to 3.5% for low-to-middle income countries. A more conservative rate based on the Ramsey formula of 7% base case discount rate was selected in performing economic evaluations. Sensitivity analysis was set between 3% and 10% to allow benchmarking with international practice and with the official SDR, respectively. Given Philippines' early HTA implementation phase, it was agreed to subject these rates to regular review.
Key messages
Setting a discount rate in economic evaluations is a crucial process for HTA institutionalization. Discount rate determination heavily relies on decision context a country considers most relevant.
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Affiliation(s)
- Y Zuniga
- Health Technology Assessment Unit, Department of Health Philippines, Manila, Philippines
| | - A Kraft
- School of Economics, University of the Philippines Diliman, Quezon City, Philippines
- Health Technology Assessment Council, Manila, Philippines
| | - D Uezono
- Health Technology Assessment Unit, Department of Health Philippines, Manila, Philippines
| | - M Fajardo
- Health Technology Assessment Unit, Department of Health Philippines, Manila, Philippines
| | - S Obmana
- Health Technology Assessment Unit, Department of Health Philippines, Manila, Philippines
| | - A Genuino
- Health Technology Assessment Unit, Department of Health Philippines, Manila, Philippines
| | - A Guerrero
- Health Technology Assessment Unit, Department of Health Philippines, Manila, Philippines
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Martínez D, Guerrero A, Prieto E, Álvarez I, Cisneros C. Clusters formation and fragmentation of nitromethane at 266 nm. MethodsX 2020; 7:100909. [PMID: 32461922 PMCID: PMC7240713 DOI: 10.1016/j.mex.2020.100909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Accepted: 04/27/2020] [Indexed: 11/26/2022] Open
Abstract
We carry out experiments on the fragmentation of nitromethane by multiphoton absorption at the wavelength 266 nm. This was conducted in a reflectron (Jordan), modified in the laboratory. Due to the large number of fragments, special care has been taken into the calibration of the system, in the simultaneity between the laser pulse and the sample, and the associated electronics to ensure that produced fragment spectra arise from the interaction laser-sample. We emphasize the next aspects of the method:Simple design for introducing a gas sample at laser interaction region to facilitate the cluster formation Astonishing number of fragments produced by multiphoton absorption.
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Affiliation(s)
- D Martínez
- Institute of Physical Science- UNAM, Av. Universidad s/n Chamilpa, 62210, Cuernavaca, Morelos, México
| | - A Guerrero
- Institute of Physical Science- UNAM, Av. Universidad s/n Chamilpa, 62210, Cuernavaca, Morelos, México
| | - E Prieto
- Institute of Physical Science- UNAM, Av. Universidad s/n Chamilpa, 62210, Cuernavaca, Morelos, México
| | - I Álvarez
- Institute of Physical Science- UNAM, Av. Universidad s/n Chamilpa, 62210, Cuernavaca, Morelos, México
| | - C Cisneros
- Institute of Physical Science- UNAM, Av. Universidad s/n Chamilpa, 62210, Cuernavaca, Morelos, México
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20
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Tejeda-Mora AJ, Maturano LD, Macias-Contreras MI, Guerrero A, Gonzalez-Sanchez R, Hernandez-Lopez E, Vazquez-Duhalt R, Licea-Navarro A, Moreno-Ulloa A. Insight into the Metabolic Machinery of Deep‐Marine Microbes Grown with Light and Heavy Petroleum. FASEB J 2020. [DOI: 10.1096/fasebj.2020.34.s1.09751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - Luis Donis Maturano
- Center for Scientific Research and Higher Education of Ensenada Baja California (CICESE) México
| | | | | | | | - Edna Hernandez-Lopez
- Center for Scientific Research and Higher Education of Ensenada Baja California (CICESE) México
| | | | - Alexei Licea-Navarro
- Center for Scientific Research and Higher Education of Ensenada Baja California (CICESE) México
| | - Aldo Moreno-Ulloa
- Center for Scientific Research and Higher Education of Ensenada Baja California (CICESE) México
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Perez-Puyana V, Rubio-Valle J, Jiménez-Rosado M, Guerrero A, Romero A. Chitosan as a potential alternative to collagen for the development of genipin-crosslinked scaffolds. REACT FUNCT POLYM 2020. [DOI: 10.1016/j.reactfunctpolym.2019.104414] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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22
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Hernández-López EL, Gasperin J, Bernáldez-Sarabia J, Licea-Navarro AF, Guerrero A, Lizárraga-Partida ML. Detection of Alcanivorax spp., Cycloclasticus spp., and Methanomicrobiales in water column and sediment samples in the Gulf of Mexico by qPCR. Environ Sci Pollut Res Int 2019; 26:35131-35139. [PMID: 31680200 PMCID: PMC6900280 DOI: 10.1007/s11356-019-06551-7] [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] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Accepted: 09/16/2019] [Indexed: 06/10/2023]
Abstract
Water column and sediment samples were collected in the southern Gulf of Mexico (GoMex) during 3 oceanographic cruises: XIXIMI-04 (September 2015), XIXIMI-05 (June 2016), and XIXIMI-06 (August 2017). DNA that was extracted from the samples was analyzed by qPCR to detect and quantify bacterial groups that have been reported to metabolize alkanes (Alcanivorax) and aromatic hydrocarbons (Cycloclasticus) and are involved in methane production (Methanomicrobiales). The results were then analyzed with regard to the water masses that are currently detected in the GoMex. Generally, we observed a decrease in the proportion of Alcanivorax and a rise in those of Cycloclasticus and Methanomicrobiales in samples from the surface to deep waters and in sediment samples. Scatterplots of the results showed that the relative abundance of the 3 groups was higher primarily from the surface to 1000 m, but the levels of Cycloclasticus and Methanomicrobiales were high in certain water samples below 1000 m and in sediments. In conclusion, oil-degrading bacteria are distributed widely from the surface to deep waters and sediments throughout the southern GoMex, representing a potential inoculum of bacteria for various hydrocarbon fractions that are ready for proliferation and degradation in the event of an oil spill from the seafloor or along the water column.
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Affiliation(s)
- Edna L Hernández-López
- Centro de Investigación Científica y de Educación Superior de Ensenada, Carretera Ensenada-Tijuana 3918, zona Playitas, 22860, Ensenada, Baja California, México
| | - Jahaziel Gasperin
- Centro de Investigación Científica y de Educación Superior de Ensenada, Carretera Ensenada-Tijuana 3918, zona Playitas, 22860, Ensenada, Baja California, México
| | - Johanna Bernáldez-Sarabia
- Centro de Investigación Científica y de Educación Superior de Ensenada, Carretera Ensenada-Tijuana 3918, zona Playitas, 22860, Ensenada, Baja California, México
| | - Alexei F Licea-Navarro
- Centro de Investigación Científica y de Educación Superior de Ensenada, Carretera Ensenada-Tijuana 3918, zona Playitas, 22860, Ensenada, Baja California, México
| | - Abraham Guerrero
- Centro de Investigación Científica y de Educación Superior de Ensenada, Carretera Ensenada-Tijuana 3918, zona Playitas, 22860, Ensenada, Baja California, México
| | - Marcial Leonardo Lizárraga-Partida
- Centro de Investigación Científica y de Educación Superior de Ensenada, Carretera Ensenada-Tijuana 3918, zona Playitas, 22860, Ensenada, Baja California, México.
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23
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Guerrero A, Licea-Navarro AF, González-Sánchez R, Lizárraga-Partida ML. Whole-genome comparison between reference sequences and oyster Vibrio vulnificus C-genotype strains. PLoS One 2019; 14:e0220385. [PMID: 31361763 PMCID: PMC6667273 DOI: 10.1371/journal.pone.0220385] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Accepted: 07/15/2019] [Indexed: 01/22/2023] Open
Abstract
Whole-genome sequences of Vibrio vulnificus clinical genotype (C-genotype) from the CICESE Culture Collection, isolated from oysters, were compared with reference sequences of CMCP6 and YJ016 V. vulnificus C-genotype strains of clinical origin. The RAST web server estimated the whole genome to be ~4.8 Mb in CICESE strain 316 and ~4.7 Mb in CICESE strain 325. No plasmids were detected in the CICESE strains. Based on a phylogenetic tree that was constructed with the whole-genome results, we observed high similarity between the reference sequences and oyster C-genotype isolates and a sharp contrast with environmental genotype (E-genotype) reference sequences, indicating that the differences between the C- and E-genotypes do not necessarily correspond to their isolation origin. The CICESE strains share 3488 genes (63.2%) with the YJ016 strain and 3500 genes (63.9%) with the CMCP6 strain. A total of 237 pathogenicity associated genes were selected from reference clinical strains, where—92 genes were from CMCP6, 126 genes from YJ016, and 19 from MO6-24/O; the presence or absence of these genes was recorded for the CICESE strains. Of the 92 genes that were selected for CMCP6, 67 were present in both CICESE strains, as were as 86 of the 126 YJ016 genes and 13 of the 19 MO6-24/O genes. The detection of elements that are related to virulence in CICESE strains—such as the RTX gene cluster, vvhA and vvpE, the type IV pili cluster, the XII genomic island, and the viuB genes, suggests that environmental isolates with the C-genotype, have significant potential for infection.
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Affiliation(s)
- Abraham Guerrero
- Centro de Investigación Científica y de Educación Superior de Ensenada Baja California, México, CICESE, Ensenada Baja California, México
| | - Alexei Fedorovish Licea-Navarro
- Centro de Investigación Científica y de Educación Superior de Ensenada Baja California, México, CICESE, Ensenada Baja California, México
| | - Ricardo González-Sánchez
- Centro de Investigación Científica y de Educación Superior de Ensenada Baja California, México, CICESE, Ensenada Baja California, México
| | - Marcial Leonardo Lizárraga-Partida
- Centro de Investigación Científica y de Educación Superior de Ensenada Baja California, México, CICESE, Ensenada Baja California, México
- * E-mail:
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24
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Bodin Ö, Alexander S, Baggio J, Barnes M, Berardo R, Cumming G, Dee L, Fischer AP, Fischer M, Mancilla-Garcia M, Guerrero A, Hileman J, Ingold K, Matous P, Morrison T, Nohrstedt D, Pittman J, Robins G, Sayles J. Improving network approaches to the study of complex social-ecological interdependencies. Nat Sustain 2019; 2:551-559. [PMID: 35342825 PMCID: PMC8943905 DOI: 10.1038/s41893-019-0308-0] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Achieving effective, sustainable environmental governance requires a better understanding of the causes and consequences of the complex patterns of interdependencies connecting people and ecosystems within and across scales. Network approaches for conceptualizing and analyzing these interdependencies offer one promising solution. Here, we present two advances we argue are needed to further this area of research: (i) a typology of causal assumptions explicating the causal aims of any given network-centric study of social-ecological interdependencies; (ii) unifying research design considerations that facilitate conceptualizing exactly what is interdependent, through what types of relationships, and in relation to what kinds of environmental problems. The latter builds on the appreciation that many environmental problems draw from a set of core challenges that re-occur across contexts. We demonstrate how these advances combine into a comparative heuristic that facilitates leveraging case-specific findings of social-ecological interdependencies to generalizable, yet context-sensitive, theories based on explicit assumptions of causal relationships.
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Affiliation(s)
- Ö. Bodin
- Stockholm University, Stockholm Resilience Centre, 10691 Stockholm, Sweden
- corresponding author:
| | - S.M. Alexander
- National Socio-Environmental Synthesis Center, University of Maryland, Annapolis, MD 21401, USA
| | - J. Baggio
- Department of Political Science and Sustainable Coastal Systems Cluster, National Center for Integrated Coastal Research, University of Central Florida, Orlando, 32816, USA
| | - M.L. Barnes
- Australian Research Council Centre of Excellence for Coral Reef Studies, James Cook University, Townsville 4811, Australia
| | - R. Berardo
- School of Environment and Natural Resources, The Ohio State University, Columbus, OH 43210, USA
| | - G.S. Cumming
- Australian Research Council Centre of Excellence for Coral Reef Studies, James Cook University, Townsville 4811, Australia
| | - L. Dee
- Department of Fisheries, Wildlife, and Conservation Biology, University of Minnesota, St. Paul, MN 55108, USA
| | - A. P. Fischer
- School for Environment and Sustainability, University of Michigan, Ann Arbor, MI 48109, USA
| | - M. Fischer
- Department of Environmental Social Sciences, Eawag, 8600 Dübendorf, Switzerland
- Institute of Political Science, University of Bern, 3012 Bern, Switzerland
| | - M. Mancilla-Garcia
- Stockholm University, Stockholm Resilience Centre, 10691 Stockholm, Sweden
| | - A. Guerrero
- School of Biological Sciences, The University of Queensland, Brisbane 4067, Australia
- ARC Centre of Excellence for Environmental Decisions, The University of Queensland, Brisbane 4067, Australia
| | - J. Hileman
- Stockholm University, Stockholm Resilience Centre, 10691 Stockholm, Sweden
| | - K. Ingold
- Department of Environmental Social Sciences, Eawag, 8600 Dübendorf, Switzerland
- Institute of Political Science, University of Bern, 3012 Bern, Switzerland
- Oeschger Centre for Climate Change Research, University of Bern, 3012 Bern, Switzerland
| | - P. Matous
- The University of Sydney, Faculty of Engineering and Information Technologies, 2006 New South Wales, Australia
| | - T.H. Morrison
- Australian Research Council Centre of Excellence for Coral Reef Studies, James Cook University, Townsville 4811, Australia
| | - D. Nohrstedt
- Department of Government, and Center for Natural Hazards and Disaster Science (CNDS), Uppsala University, 75120 Uppsala, Sweden
| | - J. Pittman
- School of Planning, University of Waterloo, 200 University Ave W, Waterloo, ON N2L 3G1, Canada
| | - G. Robins
- Melbourne School of Psychological Sciences, The University of Melbourne, Australia; Faculty of Business and Law, Swinburne University, Melbourne, Australia
| | - J. Sayles
- ORISE Fellow Appointed with the U.S. Environmental Protection Agency, Office of Research and Development, National Health and Environmental Effects Research Laboratory, Atlantic Ecology Division, Narragansett, Rhode Island, USA
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25
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Perez‐Puyana VM, Jiménez‐Rosado M, Romero A, Guerrero A. Highly porous protein‐based 3D scaffolds with different collagen concentrates for potential application in tissue engineering. J Appl Polym Sci 2019. [DOI: 10.1002/app.47954] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- V. M. Perez‐Puyana
- Departamento de Ingeniería QuímicaFacultad de Química, Universidad de Sevilla Sevilla 41012 Spain
| | - M. Jiménez‐Rosado
- Departamento de Ingeniería QuímicaUniversidad de Sevilla, Escuela Politécnica Superior Sevilla 41011 Spain
| | - A. Romero
- Departamento de Ingeniería QuímicaFacultad de Química, Universidad de Sevilla Sevilla 41012 Spain
| | - A. Guerrero
- Departamento de Ingeniería QuímicaUniversidad de Sevilla, Escuela Politécnica Superior Sevilla 41011 Spain
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26
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Perez‐Puyana V, Felix M, Romero A, Guerrero A. Influence of the processing variables on the microstructure and properties of gelatin‐based scaffolds by freeze‐drying. J Appl Polym Sci 2019. [DOI: 10.1002/app.47671] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- V. Perez‐Puyana
- Departamento de Ingeniería Química, Facultad de QuímicaUniversidad de Sevilla 41012 Sevilla Spain
| | - M. Felix
- Departamento de Ingeniería Química, Escuela Politécnica SuperiorUniversidad de Sevilla 41011 Sevilla Spain
| | - A. Romero
- Departamento de Ingeniería Química, Facultad de FísicaUniversidad de Sevilla 41012 Sevilla Spain
| | - A. Guerrero
- Departamento de Ingeniería Química, Escuela Politécnica SuperiorUniversidad de Sevilla 41011 Sevilla Spain
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27
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Adli E, Ahuja A, Apsimon O, Apsimon R, Bachmann AM, Barrientos D, Barros MM, Batkiewicz J, Batsch F, Bauche J, Berglyd Olsen VK, Bernardini M, Biskup B, Boccardi A, Bogey T, Bohl T, Bracco C, Braunmüller F, Burger S, Burt G, Bustamante S, Buttenschön B, Caldwell A, Cascella M, Chappell J, Chevallay E, Chung M, Cooke D, Damerau H, Deacon L, Deubner LH, Dexter A, Doebert S, Farmer J, Fedosseev VN, Fior G, Fiorito R, Fonseca RA, Friebel F, Garolfi L, Gessner S, Gorgisyan I, Gorn AA, Granados E, Grulke O, Gschwendtner E, Guerrero A, Hansen J, Helm A, Henderson JR, Hessler C, Hofle W, Hüther M, Ibison M, Jensen L, Jolly S, Keeble F, Kim SY, Kraus F, Lefevre T, LeGodec G, Li Y, Liu S, Lopes N, Lotov KV, Maricalva Brun L, Martyanov M, Mazzoni S, Medina Godoy D, Minakov VA, Mitchell J, Molendijk JC, Mompo R, Moody JT, Moreira M, Muggli P, Mutin C, Öz E, Ozturk E, Pasquino C, Pardons A, Peña Asmus F, Pepitone K, Perera A, Petrenko A, Pitman S, Plyushchev G, Pukhov A, Rey S, Rieger K, Ruhl H, Schmidt JS, Shalimova IA, Shaposhnikova E, Sherwood P, Silva LO, Soby L, Sosedkin AP, Speroni R, Spitsyn RI, Tuev PV, Turner M, Velotti F, Verra L, Verzilov VA, Vieira J, Vincke H, Welsch CP, Williamson B, Wing M, Woolley B, Xia G. Experimental Observation of Proton Bunch Modulation in a Plasma at Varying Plasma Densities. Phys Rev Lett 2019; 122:054802. [PMID: 30822008 DOI: 10.1103/physrevlett.122.054802] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Indexed: 06/09/2023]
Abstract
We give direct experimental evidence for the observation of the full transverse self-modulation of a long, relativistic proton bunch propagating through a dense plasma. The bunch exits the plasma with a periodic density modulation resulting from radial wakefield effects. We show that the modulation is seeded by a relativistic ionization front created using an intense laser pulse copropagating with the proton bunch. The modulation extends over the length of the proton bunch following the seed point. By varying the plasma density over one order of magnitude, we show that the modulation frequency scales with the expected dependence on the plasma density, i.e., it is equal to the plasma frequency, as expected from theory.
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Affiliation(s)
- E Adli
- University of Oslo, 0316 Oslo, Norway
| | - A Ahuja
- CERN, 1211 Geneva, Switzerland
| | - O Apsimon
- University of Manchester, M13 9PL Manchester, United Kingdom
- Cockcroft Institute, WA4 4AD Daresbury, United Kingdom
| | - R Apsimon
- Cockcroft Institute, WA4 4AD Daresbury, United Kingdom
- Lancaster University, LA1 4YB Lancaster, United Kingdom
| | - A-M Bachmann
- CERN, 1211 Geneva, Switzerland
- Max Planck Institute for Physics, 80805 Munich, Germany
- Technical University Munich, 80333 Munich, Germany
| | | | | | | | - F Batsch
- CERN, 1211 Geneva, Switzerland
- Max Planck Institute for Physics, 80805 Munich, Germany
- Technical University Munich, 80333 Munich, Germany
| | | | | | | | | | | | - T Bogey
- CERN, 1211 Geneva, Switzerland
| | - T Bohl
- CERN, 1211 Geneva, Switzerland
| | | | - F Braunmüller
- Max Planck Institute for Physics, 80805 Munich, Germany
| | | | - G Burt
- Cockcroft Institute, WA4 4AD Daresbury, United Kingdom
- Lancaster University, LA1 4YB Lancaster, United Kingdom
| | | | - B Buttenschön
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - A Caldwell
- Max Planck Institute for Physics, 80805 Munich, Germany
| | | | | | | | - M Chung
- UNIST, 44919 Ulsan, Republic of Korea
| | - D Cooke
- UCL, WC1E 6BT London, United Kingdom
| | | | - L Deacon
- UCL, WC1E 6BT London, United Kingdom
| | - L H Deubner
- Philipps-Universität Marburg, 35032 Marburg, Germany
| | - A Dexter
- Cockcroft Institute, WA4 4AD Daresbury, United Kingdom
- Lancaster University, LA1 4YB Lancaster, United Kingdom
| | | | - J Farmer
- Heinrich-Heine-University of Düsseldorf, 40225 Düsseldorf, Germany
| | | | - G Fior
- Max Planck Institute for Physics, 80805 Munich, Germany
| | - R Fiorito
- Cockcroft Institute, WA4 4AD Daresbury, United Kingdom
- University of Liverpool, L69 7ZE Liverpool, United Kingdom
| | - R A Fonseca
- ISCTE-Instituto Universitéario de Lisboa, 1649-026 Lisbon, Portugal
| | | | | | | | | | - A A Gorn
- Budker Institute of Nuclear Physics SB RAS, 630090 Novosibirsk, Russia
- Novosibirsk State University, 630090 Novosibirsk, Russia
| | | | - O Grulke
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
- Technical University of Denmark, 2800 Lyngby, Denmark
| | | | | | | | - A Helm
- GoLP/Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisbon, Portugal
| | - J R Henderson
- Cockcroft Institute, WA4 4AD Daresbury, United Kingdom
- Lancaster University, LA1 4YB Lancaster, United Kingdom
| | | | - W Hofle
- CERN, 1211 Geneva, Switzerland
| | - M Hüther
- Max Planck Institute for Physics, 80805 Munich, Germany
| | - M Ibison
- Cockcroft Institute, WA4 4AD Daresbury, United Kingdom
- University of Liverpool, L69 7ZE Liverpool, United Kingdom
| | | | - S Jolly
- UCL, WC1E 6BT London, United Kingdom
| | - F Keeble
- UCL, WC1E 6BT London, United Kingdom
| | - S-Y Kim
- UNIST, 44919 Ulsan, Republic of Korea
| | - F Kraus
- Philipps-Universität Marburg, 35032 Marburg, Germany
| | | | | | - Y Li
- University of Manchester, M13 9PL Manchester, United Kingdom
- Cockcroft Institute, WA4 4AD Daresbury, United Kingdom
| | - S Liu
- TRIUMF, V6T 2A3 Vancouver, Canada
| | - N Lopes
- GoLP/Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisbon, Portugal
| | - K V Lotov
- Budker Institute of Nuclear Physics SB RAS, 630090 Novosibirsk, Russia
- Novosibirsk State University, 630090 Novosibirsk, Russia
| | | | - M Martyanov
- Max Planck Institute for Physics, 80805 Munich, Germany
| | | | | | - V A Minakov
- Budker Institute of Nuclear Physics SB RAS, 630090 Novosibirsk, Russia
- Novosibirsk State University, 630090 Novosibirsk, Russia
| | - J Mitchell
- Cockcroft Institute, WA4 4AD Daresbury, United Kingdom
- Lancaster University, LA1 4YB Lancaster, United Kingdom
| | | | - R Mompo
- CERN, 1211 Geneva, Switzerland
| | - J T Moody
- Max Planck Institute for Physics, 80805 Munich, Germany
| | - M Moreira
- CERN, 1211 Geneva, Switzerland
- GoLP/Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisbon, Portugal
| | - P Muggli
- CERN, 1211 Geneva, Switzerland
- Max Planck Institute for Physics, 80805 Munich, Germany
| | - C Mutin
- CERN, 1211 Geneva, Switzerland
| | - E Öz
- Max Planck Institute for Physics, 80805 Munich, Germany
| | | | | | | | - F Peña Asmus
- Max Planck Institute for Physics, 80805 Munich, Germany
- Technical University Munich, 80333 Munich, Germany
| | | | - A Perera
- Cockcroft Institute, WA4 4AD Daresbury, United Kingdom
- University of Liverpool, L69 7ZE Liverpool, United Kingdom
| | - A Petrenko
- CERN, 1211 Geneva, Switzerland
- Budker Institute of Nuclear Physics SB RAS, 630090 Novosibirsk, Russia
| | - S Pitman
- Cockcroft Institute, WA4 4AD Daresbury, United Kingdom
- Lancaster University, LA1 4YB Lancaster, United Kingdom
| | | | - A Pukhov
- Heinrich-Heine-University of Düsseldorf, 40225 Düsseldorf, Germany
| | - S Rey
- CERN, 1211 Geneva, Switzerland
| | - K Rieger
- Max Planck Institute for Physics, 80805 Munich, Germany
| | - H Ruhl
- Ludwig-Maximilians-Universität, 80539 Munich, Germany
| | | | - I A Shalimova
- Novosibirsk State University, 630090 Novosibirsk, Russia
- Institute of Computational Mathematics and Mathematical Geophysics SB RAS, 630090 Novosibirsk, Russia
| | | | | | - L O Silva
- GoLP/Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisbon, Portugal
| | - L Soby
- CERN, 1211 Geneva, Switzerland
| | - A P Sosedkin
- Budker Institute of Nuclear Physics SB RAS, 630090 Novosibirsk, Russia
- Novosibirsk State University, 630090 Novosibirsk, Russia
| | | | - R I Spitsyn
- Budker Institute of Nuclear Physics SB RAS, 630090 Novosibirsk, Russia
- Novosibirsk State University, 630090 Novosibirsk, Russia
| | - P V Tuev
- Budker Institute of Nuclear Physics SB RAS, 630090 Novosibirsk, Russia
- Novosibirsk State University, 630090 Novosibirsk, Russia
| | | | | | - L Verra
- CERN, 1211 Geneva, Switzerland
- University of Milan, 20122 Milan, Italy
| | | | - J Vieira
- GoLP/Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisbon, Portugal
| | | | - C P Welsch
- Cockcroft Institute, WA4 4AD Daresbury, United Kingdom
- University of Liverpool, L69 7ZE Liverpool, United Kingdom
| | - B Williamson
- University of Manchester, M13 9PL Manchester, United Kingdom
- Cockcroft Institute, WA4 4AD Daresbury, United Kingdom
| | - M Wing
- UCL, WC1E 6BT London, United Kingdom
| | | | - G Xia
- University of Manchester, M13 9PL Manchester, United Kingdom
- Cockcroft Institute, WA4 4AD Daresbury, United Kingdom
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28
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Turner M, Adli E, Ahuja A, Apsimon O, Apsimon R, Bachmann AM, Barros Marin M, Barrientos D, Batsch F, Batkiewicz J, Bauche J, Berglyd Olsen VK, Bernardini M, Biskup B, Boccardi A, Bogey T, Bohl T, Bracco C, Braunmüller F, Burger S, Burt G, Bustamante S, Buttenschön B, Caldwell A, Cascella M, Chappell J, Chevallay E, Chung M, Cooke D, Damerau H, Deacon L, Deubner LH, Dexter A, Doebert S, Farmer J, Fedosseev VN, Fior G, Fiorito R, Fonseca RA, Friebel F, Garolfi L, Gessner S, Gorgisyan I, Gorn AA, Granados E, Grulke O, Gschwendtner E, Guerrero A, Hansen J, Helm A, Henderson JR, Hessler C, Hofle W, Hüther M, Ibison M, Jensen L, Jolly S, Keeble F, Kim SY, Kraus F, Lefevre T, LeGodec G, Li Y, Liu S, Lopes N, Lotov KV, Maricalva Brun L, Martyanov M, Mazzoni S, Medina Godoy D, Minakov VA, Mitchell J, Molendijk JC, Mompo R, Moody JT, Moreira M, Muggli P, Öz E, Ozturk E, Mutin C, Pasquino C, Pardons A, Peña Asmus F, Pepitone K, Perera A, Petrenko A, Pitman S, Plyushchev G, Pukhov A, Rey S, Rieger K, Ruhl H, Schmidt JS, Shalimova IA, Shaposhnikova E, Sherwood P, Silva LO, Soby L, Sosedkin AP, Speroni R, Spitsyn RI, Tuev PV, Velotti F, Verra L, Verzilov VA, Vieira J, Vincke H, Welsch CP, Williamson B, Wing M, Woolley B, Xia G. Experimental Observation of Plasma Wakefield Growth Driven by the Seeded Self-Modulation of a Proton Bunch. Phys Rev Lett 2019; 122:054801. [PMID: 30822039 DOI: 10.1103/physrevlett.122.054801] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Indexed: 06/09/2023]
Abstract
We measure the effects of transverse wakefields driven by a relativistic proton bunch in plasma with densities of 2.1×10^{14} and 7.7×10^{14} electrons/cm^{3}. We show that these wakefields periodically defocus the proton bunch itself, consistently with the development of the seeded self-modulation process. We show that the defocusing increases both along the bunch and along the plasma by using time resolved and time-integrated measurements of the proton bunch transverse distribution. We evaluate the transverse wakefield amplitudes and show that they exceed their seed value (<15 MV/m) and reach over 300 MV/m. All these results confirm the development of the seeded self-modulation process, a necessary condition for external injection of low energy and acceleration of electrons to multi-GeV energy levels.
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Affiliation(s)
| | - E Adli
- University of Oslo, 0316 Oslo, Norway
| | - A Ahuja
- CERN, 1211 Geneva, Switzerland
| | - O Apsimon
- University of Manchester, M13 9PL Manchester, United Kingdom
- Cockcroft Institute, WA4 4AD Daresbury, United Kingdom
| | - R Apsimon
- Cockcroft Institute, WA4 4AD Daresbury, United Kingdom
- Lancaster University, LA1 4YB Lancaster, United Kingdom
| | - A-M Bachmann
- CERN, 1211 Geneva, Switzerland
- Max Planck Institute for Physics, 80805 Munich, Germany
- Technical University Munich, 80333 Munich, Germany
| | | | | | - F Batsch
- CERN, 1211 Geneva, Switzerland
- Max Planck Institute for Physics, 80805 Munich, Germany
- Technical University Munich, 80333 Munich, Germany
| | | | | | | | | | | | | | - T Bogey
- CERN, 1211 Geneva, Switzerland
| | - T Bohl
- CERN, 1211 Geneva, Switzerland
| | | | - F Braunmüller
- Max Planck Institute for Physics, 80805 Munich, Germany
| | | | - G Burt
- Cockcroft Institute, WA4 4AD Daresbury, United Kingdom
- Lancaster University, LA1 4YB Lancaster, United Kingdom
| | | | - B Buttenschön
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
| | - A Caldwell
- Max Planck Institute for Physics, 80805 Munich, Germany
| | | | | | | | - M Chung
- UNIST, 44919 Ulsan, Republic of Korea
| | - D Cooke
- UCL, WC1E 6BT London, United Kingdom
| | | | - L Deacon
- UCL, WC1E 6BT London, United Kingdom
| | - L H Deubner
- Philipps-Universität Marburg, 35032 Marburg, Germany
| | - A Dexter
- Cockcroft Institute, WA4 4AD Daresbury, United Kingdom
- Lancaster University, LA1 4YB Lancaster, United Kingdom
| | | | - J Farmer
- Heinrich-Heine-University of Düsseldorf, 40225 Düsseldorf, Germany
| | | | - G Fior
- Max Planck Institute for Physics, 80805 Munich, Germany
| | - R Fiorito
- Cockcroft Institute, WA4 4AD Daresbury, United Kingdom
- University of Liverpool, L69 7ZE Liverpool, United Kingdom
| | - R A Fonseca
- ISCTE-Instituto Universitéario de Lisboa, 1649-026 Lisbon, Portugal
| | | | | | | | | | - A A Gorn
- Budker Institute of Nuclear Physics SB RAS, 630090 Novosibirsk, Russia
- Novosibirsk State University, 630090 Novosibirsk, Russia
| | | | - O Grulke
- Max Planck Institute for Plasma Physics, 17491 Greifswald, Germany
- Technical University of Denmark, 2800 Lyngby, Denmark
| | | | | | | | - A Helm
- GoLP/Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisbon, Portugal
| | - J R Henderson
- Cockcroft Institute, WA4 4AD Daresbury, United Kingdom
- Lancaster University, LA1 4YB Lancaster, United Kingdom
| | | | - W Hofle
- CERN, 1211 Geneva, Switzerland
| | - M Hüther
- Max Planck Institute for Physics, 80805 Munich, Germany
| | - M Ibison
- Cockcroft Institute, WA4 4AD Daresbury, United Kingdom
- University of Liverpool, L69 7ZE Liverpool, United Kingdom
| | | | - S Jolly
- UCL, WC1E 6BT London, United Kingdom
| | - F Keeble
- UCL, WC1E 6BT London, United Kingdom
| | - S-Y Kim
- UNIST, 44919 Ulsan, Republic of Korea
| | - F Kraus
- Philipps-Universität Marburg, 35032 Marburg, Germany
| | | | | | - Y Li
- University of Manchester, M13 9PL Manchester, United Kingdom
- Cockcroft Institute, WA4 4AD Daresbury, United Kingdom
| | - S Liu
- TRIUMF, V6T 2A3 Vancouver, Canada
| | - N Lopes
- GoLP/Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisbon, Portugal
| | - K V Lotov
- Budker Institute of Nuclear Physics SB RAS, 630090 Novosibirsk, Russia
- Novosibirsk State University, 630090 Novosibirsk, Russia
| | | | - M Martyanov
- Max Planck Institute for Physics, 80805 Munich, Germany
| | | | | | - V A Minakov
- Budker Institute of Nuclear Physics SB RAS, 630090 Novosibirsk, Russia
- Novosibirsk State University, 630090 Novosibirsk, Russia
| | - J Mitchell
- Cockcroft Institute, WA4 4AD Daresbury, United Kingdom
- Lancaster University, LA1 4YB Lancaster, United Kingdom
| | | | - R Mompo
- CERN, 1211 Geneva, Switzerland
| | - J T Moody
- Max Planck Institute for Physics, 80805 Munich, Germany
| | - M Moreira
- CERN, 1211 Geneva, Switzerland
- GoLP/Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisbon, Portugal
| | - P Muggli
- CERN, 1211 Geneva, Switzerland
- Max Planck Institute for Physics, 80805 Munich, Germany
| | - E Öz
- Max Planck Institute for Physics, 80805 Munich, Germany
| | | | - C Mutin
- CERN, 1211 Geneva, Switzerland
| | | | | | - F Peña Asmus
- Max Planck Institute for Physics, 80805 Munich, Germany
- Technical University Munich, 80333 Munich, Germany
| | | | - A Perera
- Cockcroft Institute, WA4 4AD Daresbury, United Kingdom
- University of Liverpool, L69 7ZE Liverpool, United Kingdom
| | - A Petrenko
- CERN, 1211 Geneva, Switzerland
- Budker Institute of Nuclear Physics SB RAS, 630090 Novosibirsk, Russia
| | - S Pitman
- Cockcroft Institute, WA4 4AD Daresbury, United Kingdom
- Lancaster University, LA1 4YB Lancaster, United Kingdom
| | - G Plyushchev
- CERN, 1211 Geneva, Switzerland
- Swiss Plasma Center, EPFL, 1015 Lausanne, Switzerland
| | - A Pukhov
- Heinrich-Heine-University of Düsseldorf, 40225 Düsseldorf, Germany
| | - S Rey
- CERN, 1211 Geneva, Switzerland
| | - K Rieger
- Max Planck Institute for Physics, 80805 Munich, Germany
| | - H Ruhl
- Ludwig-Maximilians-Universität, 80539 Munich, Germany
| | | | - I A Shalimova
- Novosibirsk State University, 630090 Novosibirsk, Russia
- Institute of Computational Mathematics and Mathematical Geophysics SB RAS, 630090 Novosibirsk, Russia
| | | | | | - L O Silva
- GoLP/Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisbon, Portugal
| | - L Soby
- CERN, 1211 Geneva, Switzerland
| | - A P Sosedkin
- Budker Institute of Nuclear Physics SB RAS, 630090 Novosibirsk, Russia
- Novosibirsk State University, 630090 Novosibirsk, Russia
| | | | - R I Spitsyn
- Budker Institute of Nuclear Physics SB RAS, 630090 Novosibirsk, Russia
- Novosibirsk State University, 630090 Novosibirsk, Russia
| | - P V Tuev
- Budker Institute of Nuclear Physics SB RAS, 630090 Novosibirsk, Russia
- Novosibirsk State University, 630090 Novosibirsk, Russia
| | | | - L Verra
- CERN, 1211 Geneva, Switzerland
- University of Milan, 20122 Milan, Italy
| | | | - J Vieira
- GoLP/Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisbon, Portugal
| | | | - C P Welsch
- Cockcroft Institute, WA4 4AD Daresbury, United Kingdom
- University of Liverpool, L69 7ZE Liverpool, United Kingdom
| | - B Williamson
- University of Manchester, M13 9PL Manchester, United Kingdom
- Cockcroft Institute, WA4 4AD Daresbury, United Kingdom
| | - M Wing
- UCL, WC1E 6BT London, United Kingdom
| | | | - G Xia
- University of Manchester, M13 9PL Manchester, United Kingdom
- Cockcroft Institute, WA4 4AD Daresbury, United Kingdom
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Frank B, Wei YL, Kim KH, Guerrero A, Lebrec H, Balazs M, Wang X. Development of a BiTE ®-mediated CD8 + cytotoxic T-lymphocyte activity assay to assess immunomodulatory potential of drug candidates in Cynomolgus macaque. J Immunotoxicol 2018; 15:119-125. [PMID: 30241454 DOI: 10.1080/1547691x.2018.1486342] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
Abstract
The immunotoxic potential of drug candidates is assessed through the examination of results from a variety of studies and endpoints. While the functional assessment of CD8+ cytotoxic T-lymphocytes (CTL) is well-characterized in the clinic, the lack of a robust macaque CTL functional assay has been an important hurdle in evaluating and accurately quantifying cell-mediated CD8+ T-cell effector responses in the nonclinical setting. This paper describes the development of an assay to measure CTL activity in peripheral blood mononuclear cells (PBMC) isolated from Cynomolgus macaques. A human EGFR/CD3 Bispecific T-cell Engager (BiTE®) was used to mount a robust CD8+ T-cell response in the presence of target-expressing cells. Upon target engagement, degranulation of CD107a and production of interferon (IFN)-γ both reliably indicated a robust functional response in CD8+ T-cells. The BiTE®-mediated stimulation method proved to be favorable when compared to other methods of stimulation in the absence of target cells. These studies demonstrated acceptable longitudinal variability of the functional assay and sensitivity to dexamethasone-mediated immunosuppression. Taken together, the results indicated an assay leveraging CD3-bispecific antibodies and target-expressing cells can provide a robust approach to the in vitro or ex vivo assessment of CTL function in Cynomolgus macaques. Because the impairment of CTL activity by immunomodulators is recognized to be an important contributor to decreased antiviral defense and increased carcinogenicity risk, we believe that this novel assay to be a valuable addition to the immunotoxicology assessment of therapeutic drug candidates.
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Affiliation(s)
- Brendon Frank
- a Comparative Biology and Safety Sciences , Amgen Inc. , South San Francisco , CA , USA
| | - Yu-Ling Wei
- a Comparative Biology and Safety Sciences , Amgen Inc. , South San Francisco , CA , USA
| | - Kyung-Hoon Kim
- a Comparative Biology and Safety Sciences , Amgen Inc. , South San Francisco , CA , USA
| | - Abraham Guerrero
- a Comparative Biology and Safety Sciences , Amgen Inc. , South San Francisco , CA , USA.,b Diagnostics and Biomarkers , Seattle Genetics , Seattle , WA , USA
| | - Hervé Lebrec
- a Comparative Biology and Safety Sciences , Amgen Inc. , South San Francisco , CA , USA
| | - Mercedesz Balazs
- a Comparative Biology and Safety Sciences , Amgen Inc. , South San Francisco , CA , USA
| | - Xiaoting Wang
- a Comparative Biology and Safety Sciences , Amgen Inc. , South San Francisco , CA , USA
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30
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Guerrero A, Sañudo C, Campo M, Olleta J, Muela E, Macedo R, Macedo F. Effect of linseed supplementation level and feeding duration on performance, carcass and meat quality of cull ewes. Small Rumin Res 2018. [DOI: 10.1016/j.smallrumres.2018.07.014] [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: 10/28/2022]
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31
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Velasco F, Torres A, Guerrero A, Andres P, Guerrero R, Aljama P, Alvarez F. Behaviour of the Contact Phase of Blood Coagulation in the Adult Respiratory Distress Syndrome (ARDS). Thromb Haemost 2018. [DOI: 10.1055/s-0038-1661563] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
SummaryIn order to assess the role of the kallikrein-kinin (K-K) system in the pathogenesis of the adult respiratory distress syndrome (ARDS) we have prospectively determined coagulation contact phase, blood gas and hemodynamic parameters in patients with ARDS at 0, 36 and 72 h from diagnosis.Compared to normal values, significantly lower mean levels of factor XII (71.4 ± 9.8%, p <0.0005), prekallikrein (PPK) (52 ± 5.7%, p <0.0005), high molecular weight kininogen (HMWK) (73 ± 2%, p <0.0005) and α2-macroglobulin (α2-M) (51 ± 7.1%, p <0.0005) were found in ARDS patients.The functional kallikrein inhibitory activity (KKI) and Cr esterase inhibitor antigenic (CIINH) were significantly higher in these patients (113.2 ± 5, p <0.005 and 124.7 ± 7.6, p <0.0005 respectively) compared with normal values during the entire study period.The KKI/CIINH ratio decreased significantly in our ARDS patients at 0, 36 and 72 h (p <0.025; p <0.05 and p <0.005 respectively).We found a significant correlation between PPK levels and oxigenation index (r = 0.69, p <0.001), PPK and the static thoracic compliance values (r = 0.64, p <0.001). There was also a significant correlation between PPK levels and Qs/Qt (r = -0.89, p <0.001). ARDS patients that survived presented a stability in the PPK values in successive tests. Nevertheless non-survivors showed a progressive decrease in PPK levels during the follow-up period.Our results suggest that the plasma kallikrein system becomes activated during ARDS and that this activation might increase the lung vessels’ permeability. In addition, PPK levels are in our opinion a useful prognostic parameter in predicting the outcome of ARDS patients.
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Affiliation(s)
- F Velasco
- The Department of Hematology, “Reina Sofia” Hospital, Cordoba, Spain
| | - A Torres
- The Department of Hematology, “Reina Sofia” Hospital, Cordoba, Spain
| | - A Guerrero
- The Department of Intensive Care Unit, “Reina Sofia” Hospital, Cordoba, Spain
| | - P Andres
- The Department of Hematology, “Reina Sofia” Hospital, Cordoba, Spain
| | - R Guerrero
- The Department of Intensive Care Unit, “Reina Sofia” Hospital, Cordoba, Spain
| | - P Aljama
- The Department of Nephrology, “Reina Sofia” Hospital, Cordoba, Spain
| | - F Alvarez
- The Department of Intensive Care Unit, “Reina Sofia” Hospital, Cordoba, Spain
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Grilley-Olson JE, Curti BD, Smith DC, Goel S, Gajewski T, Markovic S, Rixe O, Bajor DL, Gutierrez M, Kuzel T, Mehta AN, Amore B, Guerrero A, Wang Z, Coveler AL. SEA-CD40, a non-fucosylated CD40 agonist: Interim results from a phase 1 study in advanced solid tumors. J Clin Oncol 2018. [DOI: 10.1200/jco.2018.36.15_suppl.3093] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Juneko E. Grilley-Olson
- UNC Lineberger Comprehensive Cancer Center/University of North Carolina Chapel Hill, Chapel Hill, NC
| | - Brendan D. Curti
- Earle A. Chiles Research Institute at Robert W. Franz Cancer Center, Providence Cancer Institute, Portland, OR
| | | | - Sanjay Goel
- Montefiore Medical Center/Albert Einstein College of Medicine, Bronx, NY
| | | | | | - Olivier Rixe
- University of New Mexico Comprehensive Cancer Center, Albuquerque, NM
| | - David Lawrence Bajor
- Case Western Reserve University/University Hospitals Cleveland Medical Center, Cleveland, OH
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Lopez-Pajares V, Bhaduri A, Garcia O, Guerrero A, Gowrishankar G, Che Y, Sanchez A, Boxer L, Gambhir S, Khavari P. 727 Metabolomic analysis reveals an essential role for glucose in epidermal differentiation. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Cruz-Flores R, Cáceres-Martínez J, Del Río-Portilla MÁ, Licea-Navarro AF, Gonzales-Sánchez R, Guerrero A. Correction to: Complete genome sequence of a
phage hyperparasite of Candidatus Xenohaliotis
californiensis (Rickettsiales) – a pathogen of Haliotis spp (Gasteropoda). Arch Virol 2018; 163:1105. [DOI: 10.1007/s00705-018-3727-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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35
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Tiwari K, Acuna AM, Guerrero A, Piechowski B, Thille K, Sharma R. Seroprevalence and pathology of lung worm Angiostrongylus cantonensis in brown rats (Rattus novergicus) from Grenada, West Indies. ACTA ACUST UNITED AC 2018. [DOI: 10.5958/0973-970x.2018.00006.8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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36
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Guerrero A, Rivaroli DC, Sañudo C, Campo MM, Valero MV, Jorge AM, Prado IN. Consumer acceptability of beef from two sexes supplemented with essential oil mix. Anim Prod Sci 2018. [DOI: 10.1071/an15306] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Essential oils are natural extracts from plants which can be included in cattle diets as an alternative to additives, such as ionophores, to improve the shelf life of meat. The aim of this study was to evaluate the sensory acceptability of meat from 57 crossbred (1/2 Angus–1/2 Nellore) animals of different sexes [heifers n = 30, and young bulls n = 27], finished in feedlot with isoenergetic and isonitrogenous diets, which differed in the level of supplementation (0.0, 3.5 or 7.0 g/animal/day) with a commercial mix of essential oils (Mixoil®) from seven plants: oregano, garlic, lemon, rosemary, thyme, eucalyptus and sweet orange. The Longissimus thoracis muscle, aged for 24 h, was evaluated by 120 consumers who scored tenderness acceptability, flavour acceptability and overall acceptability using a hedonic 9-point scale. The inclusion of essential oils affected tenderness acceptability and flavour acceptability (P ≤ 0.01), with a tendency (P < 0.10) for overall acceptability. Meat from heifers was more appreciated by consumers than that from young bulls in all attributes (P ≤ 0.001), however, different groups of consumers had different preferences. The inclusion of a mix of essential oils in beef diets was well accepted by consumers, and could improve the acceptability of meat from young bulls, when is added at a concentration of 3.5 g/animal/day during the last 4 months of fattening.
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Nicolalde V, Guerrero A, Nicolalde G. Low-Cost and Easy-to-Make Laparoscopic Extraction Bag. J Minim Invasive Gynecol 2017. [DOI: 10.1016/j.jmig.2017.08.502] [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: 11/29/2022]
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39
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Romero A, Felix M, Perez-Puyana V, Choplin L, Guerrero A. Use of a mixer-type rheometer for predicting the stability of O/W protein-based emulsions. Lebensm Wiss Technol 2017. [DOI: 10.1016/j.lwt.2017.07.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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40
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Molinero L, Albanell J, Koeppen H, Martinez de Dueñas E, Halligan D, Guerrero A, Chacón López-Muñiz J, Perez R, Antolin S, Blancas I, Muñoz M, Oltra A, LÓpez de Ceballos M, Sánchez-Aragó M, Caballero R, Carrasco E, González-Angulo A, Lluch A, Mittendorff E, Rojo F. Analysis of stroma and immune-related gene expression patterns during breast cancer (BC) progression. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx391.006] [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: 11/13/2022] Open
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41
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Ocana Fernandez A, Ruiz Borrego M, Gil Martin M, Antolin S, Atienza M, Montaño A, Ribelles N, Guerrero A, Muñoz M, Fernández-Pérez I, Urruticoechea A, Falcon Gonzalez A, Pernas Simon S, Prato Varela J, Escudero M, Benito S, Caballero R, Carrasco E, Rojo F, Pandiella A. A phase II trial of dasatinib (D) in combination with trastuzumab (T) and paclitaxel (P) in the first line treatment of HER2 positive metastatic breast cancer (MBC) patients (pts): GEICAM/2010-04. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx365.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Abstract
Osseous hydatidosis is a very uncommon disease which often recurs after treatment. There is no well-established effective method of management. Radical excision may produce serious mutilation and often fails to control the disease. We have used oral mebendazole as adjuvant treatment in four patients. Two also underwent radical excision, one had received limited excision elsewhere and the other did not have operative treatment. The patients who underwent radical excision and the other who did not have an operation became and remain free of symptoms and are serologically negative.A combination of excision and treatment with mebendazole may have a role in the management of this complex disease.
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Affiliation(s)
- G Ocete
- Adult Orthopaedic Service, Madrid, Spain
| | - A Guerrero
- Unidad de Enfermedades Infecciosas, Centro Especial Ramón y Cajal, Carretera de Colmenar Kmt. 9, 100, 28034, Madrid, Spain
| | | | - J Burgos
- Adult Orthopaedic Service, Madrid, Spain
| | - E Bouza
- Unidad de Enfermedades Infecciosas, Centro Especial Ramón y Cajal, Carretera de Colmenar Kmt. 9, 100, 28034, Madrid, Spain
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Ornaghi MG, Torrecilhas JA, Passetti RAC, Mottin C, Guerrero A, Eiras CE, Rivaroli DC, Ramos TR, Prado IN. 018 Essential oils in the diet of young bulls: Effect on animal temperament. J Anim Sci 2017. [DOI: 10.2527/asasann.2017.018] [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: 11/13/2022] Open
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44
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Affiliation(s)
- M. Felix
- Department of Chemical Engineering; University of Sevilla; 41012 Sevilla Spain
| | - V. Perez-Puyana
- Department of Chemical Engineering; University of Sevilla; 41012 Sevilla Spain
| | - A. Romero
- Department of Chemical Engineering; University of Sevilla; 41012 Sevilla Spain
| | - A. Guerrero
- Department of Chemical Engineering; University of Sevilla; 41012 Sevilla Spain
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45
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Ortiz-Espín A, Delgado Rubín de Célix A, Brieva A, Guerrero A, González S, Sevilla F. 720 The extract of Deschampsia antarctica (EDA) protects fibroblasts viability from the effects of environmental oxidants and pollutants. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.02.743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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46
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Frank B, Guerrero A, Lebrec H, Balazs M. Assessing the immunomodulatory potential of therapeutic agents in cynomolgus macaque cytotoxic T lymphocytes. The Journal of Immunology 2017. [DOI: 10.4049/jimmunol.198.supp.151.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Abstract
The preclinical evaluation of therapeutic agents contributes to the understanding of associated risks and benefits. The non-human primate, and notably the cynomolgus macaque, is often a species of choice for such pharmacological and toxicological assessments. The degree of immunomodulation associated with these agents, intended or not, is a critical point to consider in that context. While there are tools to immunophenotype and enumerate effector T cells, the knowledge gap surrounding the functional characterization of cytotoxic T lymphocytes (CTL) persists. Here we present a multi-parametric cynomolgus macaque CTL functional assay. By using an EGFR expressing target cell line co-cultured with cynomolgus peripheral blood mononuclear cells (PBMC) and an EGFR Bispecific T Cell Engager (BiTE®), we were able to redirect lysis in a target-specific manner. In this assay we simultaneously monitored cytolytic potential (CD107a) and cytokine secretion (IFN-γ and TNF-α) of effector CTL against target cell growth. Overall our results demonstrate the ability to assess cynomolgus CTL function under known immunosuppressive agents, thereby enabling a multi-parametric approach of monitoring the impact of investigational drugs on an important component of the immune system.
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47
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Aguilar J, Cordobés F, Raymundo A, Guerrero A. Thermal gelation of mixed egg yolk/kappa-carrageenan dispersions. Carbohydr Polym 2017; 161:172-180. [DOI: 10.1016/j.carbpol.2017.01.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Revised: 10/25/2016] [Accepted: 01/01/2017] [Indexed: 10/20/2022]
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48
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Romero A, Perez-Puyana V, Marchal P, Choplin L, Guerrero A. Emulsification process controlled by a mixer type rheometer in O/W protein-based emulsions. Lebensm Wiss Technol 2017. [DOI: 10.1016/j.lwt.2016.10.046] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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49
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Felix M, Romero A, Rustad T, Guerrero A. Rheological properties and antioxidant activity of protein gels-like systems made from crayfish concentrate and hydrolysates. Food and Bioproducts Processing 2017. [DOI: 10.1016/j.fbp.2016.12.014] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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50
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Felix M, Romero A, Rustad T, Guerrero A. Physicochemical, microstructure and bioactive characterization of gels made from crayfish protein. Food Hydrocoll 2017. [DOI: 10.1016/j.foodhyd.2016.09.025] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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