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Díaz-Insa S, Navarro-Zornoza M, Sánchez-de la Rosa R, Guerrero AL. Characterisation of the management of patients with migraine in the primary care setting in Spain. Analysis of the results of the European My-LIFE anamnesis project. Neurologia 2023:S2173-5808(23)00029-9. [PMID: 37116687 DOI: 10.1016/j.nrleng.2021.10.009] [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: 06/10/2021] [Accepted: 10/31/2021] [Indexed: 04/30/2023] Open
Abstract
INTRODUCTION Migraine affects more than 4.5 million people in Spain, resulting in a considerable socioeconomic impact. Although national and international guidelines have been published, the management of patients with migraine, especially those with chronic migraine, is inadequate. SUBJECTS AND METHODS We conducted a survey among 40 primary care (PC) physicians in Spain as part of a European project involving 201 physicians from 5 countries. RESULTS Most participants issued diagnoses of episodic migraine and chronic migraine (93% vs 65%); 82.5% indicated that they did not refer these patients to specialists, and 100% of PC physicians stated that they were responsible for patient follow-up. The main tools used in PC for diagnosis and follow-up were clinical interviews, medical histories, and the patient diaries. Our data revealed that the treatments prescribed were not in accordance with the national and international guidelines. Participants who did not refer patients estimated that only 48% of patients received preventive treatment, and that the assessment of efficacy was based on patient perception. Seventy percent of respondents indicated a need for migraine training. Finally, 100% of participants considered that a guide for medical history taking and referral would be essential or useful for the management of migraine in PC. CONCLUSIONS The survey results revealed a need for training and guidance in PC to improve the diagnosis and management of patients with migraine, particularly chronic migraine.
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Affiliation(s)
- S Díaz-Insa
- Unidad de Cefaleas, Neurología, Hospital Universitari i Politècnic La Fe, IIS La Fe, Valencia, Spain.
| | | | | | - A L Guerrero
- Unidad de Cefaleas, Servicio de Neurología, Hospital Clínico Universitario de Valladolid, Valladolid, Spain; Departamento de Medicina, Universidad de Valladolid, Valladolid, Spain; Instituto de Investigación Biomédica de Salamanca (IBSAL), Salamanca, Spain
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2
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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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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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6
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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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7
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Láinez-Andrés JM, Ashina M, Belvís R, Díaz-Insa S, Ezpeleta D, García-Azorín D, González-Oria C, Guerrero AL, Guillém A, Holle-Lee D, Huerta-Villanueva M, Irimia P, Leira R, Pascual J, Porta-Etessam J, Pozo-Rosich P, Rodríguez-Vico JS, Sánchez Del Río M, Santos-Lasaosa S, Silberstein S. 1st Post-European Headache Federation Meeting: a review of the latest developments presented at the 2020 European Headache Federation Congress. Rev Neurol 2021; 72:S1-S19. [PMID: 34180043 DOI: 10.33588/rn.72s02.2021155] [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: 11/24/2022]
Abstract
INTRODUCTION After the European Headache Federation (EHF) Congress, renowned Spanish neurologists specialised in migraine presented the most significant latest developments in research in this field at the Post-EHF Meeting. DEVELOPMENT The main data presented concerning the treatment of chronic and episodic migraine were addressed, with attention paid more specifically to those related to preventive treatments and real-life experience in the management of the disease. An important review was carried out of the new therapeutic targets and the possibilities they offer in terms of understanding the pathophysiology of migraine and its treatment. An update was also presented of the latest developments in the treatment of migraine with fremanezumab, a monoclonal antibody recently authorised by the European Medicines Agency. Participants were also given an update on the latest developments in basic research on the pathology, as well as an overview of the symptoms of migraine and COVID-19. Finally, the repercussions of migraine in terms of its burden on the care and economic resources of the health system were addressed, along with its impact on society. CONCLUSIONS The meeting summarised the content presented at the 14th EHF Congress, which took place in late June/early July 2020.
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Affiliation(s)
| | - M Ashina
- Rigshospitalet Glostrup, Glostrup, Dinamarca
| | - R Belvís
- Hospital de la Santa Creu i Sant Pau, 08025 Barcelona, España
| | - S Díaz-Insa
- Hospital Universitario La Fe, Valencia, España
| | - D Ezpeleta
- Hospital Universitario Quirón Salud Madrid, Pozuelo de Alarcón, España
| | - D García-Azorín
- Hospital Universitario Clínico de Valladolid, Valladolid, España
| | | | - A L Guerrero
- Hospital Universitario Clínico de Valladolid, Valladolid, España
| | - A Guillém
- Hospital General Universitario Gregorio Marañón, Madrid, España
| | | | | | - P Irimia
- Clínica Universitaria de Navarra, 31008 Pamplona, España
| | - R Leira
- Hospital Clínico Universitario de Santiago de Compostela, A Coruña, España
| | - J Pascual
- Hospital Universitario Marqués de Valdecilla, Santander, España
| | | | - P Pozo-Rosich
- Hospital Universitari Vall d'Hebron, 08035 Barcelona, España
| | | | | | - S Santos-Lasaosa
- Hospital Clínico Universitario Lozano Blesa, 50009 Zaragoza, España
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8
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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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9
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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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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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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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12
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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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13
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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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14
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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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15
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Alpuente A, Gallardo VJ, Torres-Ferrús M, Santos-Lasaosa S, Guerrero AL, Laínez JM, Viguera J, Gago-Veiga A, Irimia P, Sánchez Del Rio M, Pozo-Rosich P. Evaluation of the concomitant use of oral preventive treatments and onabotulinumtoxinA in chronic migraine: the PREVENBOX study. Eur J Neurol 2020; 27:2102-2108. [PMID: 32421912 DOI: 10.1111/ene.14331] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Accepted: 05/07/2020] [Indexed: 12/26/2022]
Abstract
BACKGROUND AND PURPOSE OnabotulinumtoxinA is an effective preventive treatment for chronic migraine (CM). In CM, in addition to a reduction in headache frequency, a decreased reliance on oral prophylactics is also indicative of treatment effectiveness. This study aimed to quantify the change in the use of oral prophylactics after treatment with onabotulinumtoxinA in patients with CM. METHODS This was a retrospective, multicentric, cross-sectional study. Patients with CM (International Classification of Headache Disorders-3beta) that had been treated with onabotulinumtoxinA were enrolled consecutively. We collected parameters related to each patient's pre-treatment situation, as well as their current situation, focusing on frequency and intensity of migraine, number of oral prophylactics and the respective cycle of onabotulinumtoxinA. Univariate and logistic regression analyses were performed. RESULTS We included 542 patients, 90.0% of whom were taking oral preventive treatments. During treatment with onabotulinumtoxinA, 47.8% withdrew at least one prophylactic and 41.6% stopped using oral prophylactics altogether. Factors associated with a reduction or cessation of oral prophylactics were >50% improvement in frequency and intensity, remission to episodic migraine, use of topiramate as an initial treatment, increased number of infiltrations and shorter chronification period (P < 0.05). The multivariate analysis showed that a chronification period <20 months, more than five cycles of onabotulinumtoxinA, >50% improvement in pain intensity and topiramate as an initial treatment were predictors of a reduction in oral prophylactics (area under the curve, 70.3%; P < 0.001). CONCLUSIONS Our study demonstrated the efficacy and safety of onabotulinumtoxinA. This treatment reduced the use of oral prophylactics. Withdrawal of oral prophylactics was most likely to occur after five cycles of treatment.
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Affiliation(s)
- A Alpuente
- Headache Unit, Neurology Department, Vall d'Hebron University Hospital, Barcelona.,Headache and Neurological Pain Research Group, Departament de Medicina, Vall d'Hebron Research Institute, Universitat Autònoma de Barcelona, Barcelona
| | - V J Gallardo
- Headache and Neurological Pain Research Group, Departament de Medicina, Vall d'Hebron Research Institute, Universitat Autònoma de Barcelona, Barcelona
| | - M Torres-Ferrús
- Headache Unit, Neurology Department, Vall d'Hebron University Hospital, Barcelona.,Headache and Neurological Pain Research Group, Departament de Medicina, Vall d'Hebron Research Institute, Universitat Autònoma de Barcelona, Barcelona
| | - S Santos-Lasaosa
- Headache Unit, Neurology Department, Hospital Clínico Universitario Lozano Blesa, Zaragoza
| | - A L Guerrero
- Headache Unit, Neurology Department, Hospital Clínico Universitario de Valladolid, Valladolid
| | - J M Laínez
- Department of Neurology, Hospital Clínico Universitario, Universidad Católica de Valencia, Valencia
| | - J Viguera
- Headache Unit, Neuroscience Department, Hospital Universitario Virgen Macarena, Sevilla
| | - A Gago-Veiga
- Headache Unit, Neurology Department, Hospital Universitario de la Princesa, Madrid
| | - P Irimia
- Neurology Department, Clínica Universidad de Navarra, Pamplona
| | | | - P Pozo-Rosich
- Headache Unit, Neurology Department, Vall d'Hebron University Hospital, Barcelona.,Headache and Neurological Pain Research Group, Departament de Medicina, Vall d'Hebron Research Institute, Universitat Autònoma de Barcelona, Barcelona
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16
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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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17
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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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18
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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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19
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Moreno-Mayordomo R, Ruiz M, Pascual J, Gallego de la Sacristana M, Vidriales I, Sobrado M, Cernuda-Morollon E, Gago-Veiga AB, Garcia-Azorin D, Telleria JJ, Guerrero AL. CALCA and TRPV1 genes polymorphisms are related to a good outcome in female chronic migraine patients treated with OnabotulinumtoxinA. J Headache Pain 2019; 20:39. [PMID: 31014225 PMCID: PMC6734474 DOI: 10.1186/s10194-019-0989-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Accepted: 03/29/2019] [Indexed: 01/03/2023] Open
Abstract
Background Some variables have been proposed as predictors of efficacy of OnabotulinumtoxinA in chronic migraine patients, but data available are inconclusive. We aimed to analyse the influence of single nucleotide polymorphisms in the response to OnabotulinumtoxinA. Methods We included 156 female patients treated with OnabotulinumtoxinA accordingly to PREEMPT paradigm in three headache units. OnabotulinumtoxinA was offered to patients that had not responded to topiramate and at least one other preventative. Age at first procedure was 43.7 ± 11.8 years (16–74). Patients with a reduction of at least 50% in the number of migraine days after two OnabotulinumtoxinA procedures were considered as responders. We analysed 25 polymorphisms selected for their relevance regarding migraine pathophysiology and their association with migraine according to previously published genome-wide association studies. Genotyping was performed using KASP probes and a LightCycler-480 (Roche-Diagnostics). Allelic, genotypic frequencies and dominance/recesivity hypothesis of the allelic variants were compared between responders and non-responders by Fisher’s exact test. Results Response to treatment with OnabotulinumtoxinA was achieved in 120 patients (76,9%). Two polymorphisms showed differences: CALCA rs3781719, where allele C represents 26.9% in responders and 40.9% in non-responders (p = 0.007, OR = 3.11 (1.33–7.26)); and TRPV1 rs222749, where allele A represents 4.17% in responders and 12.5% in non-responders (p = 0.013, OR = 3.29 (1.28–8.43)). No significant differences in rest of polymorphisms or clinical or demographic variables were found. Conclusions Polymorphic variations of CALCA and TRPV1 genes might play a role as prognostic markers of efficacy of OnabotulinumtoxinA in chronic migraine female patients in our population.
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Affiliation(s)
- R Moreno-Mayordomo
- Clinical Analysis Department, Hospital Clínico Universitario de Valladolid, Valladolid, Spain
| | - M Ruiz
- Headache Unit, Neurology Department, Hospital Clínico Universitario de Valladolid, Avda. Ramón y Cajal 3, 47005, Valladolid, Spain
| | - J Pascual
- Neurosciences Department, Hospital Universitario Central de Asturias, Oviedo, Spain.,Hospital Universitario Marqués de Valdecilla, Santander, Spain
| | | | - I Vidriales
- Clinical Analysis Department, Hospital Clínico Universitario de Valladolid, Valladolid, Spain
| | - M Sobrado
- Neurology Department. Hospital Universitario de La Princesa, Madrid, Spain
| | - E Cernuda-Morollon
- Neurosciences Department, Hospital Universitario Central de Asturias, Oviedo, Spain
| | - A B Gago-Veiga
- Neurology Department. Hospital Universitario de La Princesa, Madrid, Spain
| | - D Garcia-Azorin
- Headache Unit, Neurology Department, Hospital Clínico Universitario de Valladolid, Avda. Ramón y Cajal 3, 47005, Valladolid, Spain.
| | - J J Telleria
- Instituto de Biología y Genética Molecular, University of Valladolid, Valladolid, Spain.,Instituto de Investigación Biomédica de Salamanca (IBSAL), Salamanca, Spain
| | - A L Guerrero
- Headache Unit, Neurology Department, Hospital Clínico Universitario de Valladolid, Avda. Ramón y Cajal 3, 47005, Valladolid, Spain.,Instituto de Investigación Biomédica de Salamanca (IBSAL), Salamanca, Spain
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20
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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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21
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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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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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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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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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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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Gavila J, Gozalbo F, Climent MA, Guerrero AL, Sandiego S, Blanch S, Algarra MA, Soriano V, Guillem V, Ruiz A, Lopez Guerrero JA. Abstract P2-09-27: Integrated analysis of PTEN protein expression and PI3KCA mutations as predictors for pathological complete response in HER2-positive breast cancer. Cancer Res 2018. [DOI: 10.1158/1538-7445.sabcs17-p2-09-27] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Introduction: Anti-HER2 treatment has also influenced the response to neoadjuvant chemotherapy in HER2-positive breast cancer (BC) by increasing the pathologic complete response (pCR) rate. The activation of HER2 signaling causes the downstream activation of the PI3K/AKT/mTOR pathway that plays a crucial role in developing resistance to trastuzumab (T). Therefore, candidate biomarkers with a potential role in the prediction of a pCR and prognosis after anti-HER2 treatment could be selected from this pathway.
Material and Methods: We retrospectively evaluated PTEN protein expression and PI3KCA mutations in core biopsies from HER2-positive patients treated at our institution with neoadjuvant therapy based on anthracyclines, paclitaxel and T. Protein expression was assessed by immunohistochemistry and used as dichotomic variable, PTEN loss was considered if Hscore ≤ 40. The association of PTEN status, PI3KCA mutation and PI3K activation (defined as either PTEN loss and/or presence of PI3KCA) with pathological complete response (ypT0/isN0) and progression-free survival (PFS) was evaluated.
Results: In our database 86 patients with HER2-positive clinical stage II-III BC were identified. Median follow-up was 75.85 months. PTEN was available from 84 (97.7%) and PI3KCA genotype from 67 patients (77.9%). Median age was 47.34, stage III 58.8% and 50% were hormonal receptor (HR) positive. Low PTEN was described in 29.8% tumors and was statistically associated with Grade1-2 and HR positive tumors. PI3KCA mutations (exon 9 and 20) were observed in 23.9% tumors. PI3K activation was detected in 37.5% tumors. Overall, the pCR rate was 53.5%. In low PTEN tumors pCR was 12% and in PTEN-high tumors, it was 72.1% (p<.0001). pCR rate was statistically different between PIK3CA mutant and wild-type tumors (6.3% vs. 51.9%; p<.0001). PI3K activation was statistically associated with lower pCR rate (12.5 vs. 72.9%; p<.0001). In multivariable analysis adjusted for baseline parameters, HR expression (OR 4.170; 95% CI 0.975-17.829;p=0.054) and PI3K activation (OR 45.87; 95% CI8.059-261.101; p<.0001) independently predicted pCR. In univariable analysis clinical, stage III, non-pCR and PI3K activation were correlated with worse PFS. PI3K activation was statistically associated with lower PFS at 5 years (OR 3.813;CI 95%1.369-10.347; p=0.009) in the multivariable analysis.
Conclusions: The study showed the potential role of PIK3CA Genotype and PTEN expression in predicting pCR and prognosis after anthracycline–taxane-based chemotherapy and anti-HER2 treatment.
Citation Format: Gavila J, Gozalbo F, Climent MA, Guerrero AL, Sandiego S, Blanch S, Algarra MA, Soriano V, Guillem V, Ruiz A, Lopez Guerrero JA. Integrated analysis of PTEN protein expression and PI3KCA mutations as predictors for pathological complete response in HER2-positive breast cancer [abstract]. In: Proceedings of the 2017 San Antonio Breast Cancer Symposium; 2017 Dec 5-9; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2018;78(4 Suppl):Abstract nr P2-09-27.
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Affiliation(s)
- J Gavila
- Fundacion Instituto Valenciano de Oncologia, Valencia, Spain
| | - F Gozalbo
- Fundacion Instituto Valenciano de Oncologia, Valencia, Spain
| | - MA Climent
- Fundacion Instituto Valenciano de Oncologia, Valencia, Spain
| | - AL Guerrero
- Fundacion Instituto Valenciano de Oncologia, Valencia, Spain
| | - S Sandiego
- Fundacion Instituto Valenciano de Oncologia, Valencia, Spain
| | - S Blanch
- Fundacion Instituto Valenciano de Oncologia, Valencia, Spain
| | - MA Algarra
- Fundacion Instituto Valenciano de Oncologia, Valencia, Spain
| | - V Soriano
- Fundacion Instituto Valenciano de Oncologia, Valencia, Spain
| | - V Guillem
- Fundacion Instituto Valenciano de Oncologia, Valencia, Spain
| | - A Ruiz
- Fundacion Instituto Valenciano de Oncologia, Valencia, Spain
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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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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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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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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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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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Navarrete JJ, Ruiz M, Juanatey A, Barón J, Cuadrado ML, Guerrero AL. The Relationship of Auriculotemporal Neuralgia and Epicrania Fugax. Pain Medicine 2017; 19:635-636. [DOI: 10.1093/pm/pnx158] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- J J Navarrete
- Headache Unit, Neurology Department, Hospital Clínico Universitario, Valladolid, Spain
| | - M Ruiz
- Headache Unit, Neurology Department, Hospital Clínico Universitario, Valladolid, Spain
| | - A Juanatey
- Headache Unit, Neurology Department, Hospital Clínico Universitario, Valladolid, Spain
| | - J Barón
- Headache Unit, Neurology Department, Hospital Clínico Universitario, Valladolid, Spain
| | - M L Cuadrado
- Headache Unit, Neurology Department, Hospital Clínico Universitario San Carlos, Madrid, Spain
| | - A L Guerrero
- Headache Unit, Neurology Department, Hospital Clínico Universitario, Valladolid, 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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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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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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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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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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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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Schwarz LJ, Hutchinson KE, Estrada MV, Sanders ME, Dugger TC, Formisano L, Guerrero AL, Red-Brewer M, Young CD, Lantto J, Pedersen MW, Kragh M, Horak ID, Arteaga CL. Abstract P6-12-09: Pan-HER, an antibody mixture with antitumor activity against drug-resistant HER2-overexpressing breast cancers with high ERBB ligand expression. Cancer Res 2017. [DOI: 10.1158/1538-7445.sabcs16-p6-12-09] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Amplification/overexpression of ERBB receptors and/or ligands has been associated with resistance to anti-HER2 therapies. Pan-HER is a mixture of six antibodies targeting each of the ERBB receptors, EGFR, HER2 and HER3, with synergistic pairs of antibodies. Each pair of antibodies simultaneously blocks ligand binding and/or induces target degradation, thus preventing compensatory mechanisms to anti-ERBB therapies. We examined the antitumor activity of Pan-HER against drug-sensitive and -resistant HER2+ breast cancer cells and xenografts.
Results: Pan-HER exhibited potent growth inhibitory activity against a panel of HER2+ breast cancer cells (BT474, MDA-453, MDA-361, SUM190, HCC1954, UACC893 and SKBR3). Growth inhibition was associated with internalization and degradation of EGFR, HER2 and HER3. Pan-HER was superior to the combination of trastuzumab/pertuzumab (TP) against HER2+/PIK3CA mutant MDA-361, HCC1954, UACC893 and MDA-453 cells. We next compared the effect of Pan-HER against BT474, HCC1954 and MDA-361 xenografts established in nude mice to that of trastuzumab/lapatinib (TL), TP and T-DM1. All treatments were effective across the panel of xenografts. In mice with MDA-361 tumors, Pan-HER and TP were superior to TL. Immunoblot analysis showed significant downregulation of EGFR, HER2 and HER3 only in tumors treated with Pan-HER. After a complete response, treatment was discontinued. Among mice with BT474 xenografts treated with TP, TL and T-DM1, 25-50% of mice exhibited a tumor recurrence within 50 weeks of follow-up, while no recurrences were registered in mice treated with Pan-HER. Tumors recurring after TP and T-DM1 expressed significantly higher HER3 and P-HER3 protein levels and NRG1 mRNA levels. HCC1954 xenografts recurring after T-DM1 also overexpressed NRG1 mRNA compared to tumors before therapy.
We next examined the effect of Pan-HER against trastuzumab-resistant HR6 (BT474) cells (Ritter et al. CCR 2007) and HCC1954 and UACC893 cells with acquired resistance to T-DM1 (TDR; IC50 >5-, >6- and 600-fold in HR6, UACC893-TDR and HCC1954-TDR cells, respectively, vs. parental cells). All T-DM1-resistant cells expressed significantly higher HER3 and P-HER3 protein levels and NRG1 mRNA and protein levels. Treatment with the HER3 neutralizing antibody LJM716 resensitized HR6 and HCC1954-TDR cells to T-DM1, suggesting a causal association between the NRG1-HER3 axis and drug resistance. Mice with HR6 tumors were treated with Pan-HER, TL, TP and T-DM1. Only Pan-HER arrested HR6 tumor growth and downregulated EGFR, HER2, HER3, P-HER3 and P-AKT. Finally, HCC1954-TDR tumors rapidly grew in vivo despite treatment with T-DM1. Administration of Pan-HER to mice bearing HCC1954-TDR xenografts growing in the presence of T-DM1, induced rapid tumor regressions.
Conclusions: These data suggest that multitarget therapeutic interventions, such as Pan-HER, which simultaneously remove and/or block all ERBB receptors and ligands, are a feasible and effective approach against HER2-overexpressing cancers both sensitive and resistant to anti-HER2 therapies.
Citation Format: Schwarz LJ, Hutchinson KE, Estrada MV, Sanders ME, Dugger TC, Formisano L, Guerrero AL, Red-Brewer M, Young CD, Lantto J, Pedersen MW, Kragh M, Horak ID, Arteaga CL. Pan-HER, an antibody mixture with antitumor activity against drug-resistant HER2-overexpressing breast cancers with high ERBB ligand expression [abstract]. In: Proceedings of the 2016 San Antonio Breast Cancer Symposium; 2016 Dec 6-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2017;77(4 Suppl):Abstract nr P6-12-09.
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Affiliation(s)
- LJ Schwarz
- Vanderbilt University Medical Center, Nashville, TN; Symphogen, Ballerup, Denmark
| | - KE Hutchinson
- Vanderbilt University Medical Center, Nashville, TN; Symphogen, Ballerup, Denmark
| | - MV Estrada
- Vanderbilt University Medical Center, Nashville, TN; Symphogen, Ballerup, Denmark
| | - ME Sanders
- Vanderbilt University Medical Center, Nashville, TN; Symphogen, Ballerup, Denmark
| | - TC Dugger
- Vanderbilt University Medical Center, Nashville, TN; Symphogen, Ballerup, Denmark
| | - L Formisano
- Vanderbilt University Medical Center, Nashville, TN; Symphogen, Ballerup, Denmark
| | - AL Guerrero
- Vanderbilt University Medical Center, Nashville, TN; Symphogen, Ballerup, Denmark
| | - M Red-Brewer
- Vanderbilt University Medical Center, Nashville, TN; Symphogen, Ballerup, Denmark
| | - CD Young
- Vanderbilt University Medical Center, Nashville, TN; Symphogen, Ballerup, Denmark
| | - J Lantto
- Vanderbilt University Medical Center, Nashville, TN; Symphogen, Ballerup, Denmark
| | - MW Pedersen
- Vanderbilt University Medical Center, Nashville, TN; Symphogen, Ballerup, Denmark
| | - M Kragh
- Vanderbilt University Medical Center, Nashville, TN; Symphogen, Ballerup, Denmark
| | - ID Horak
- Vanderbilt University Medical Center, Nashville, TN; Symphogen, Ballerup, Denmark
| | - CL Arteaga
- Vanderbilt University Medical Center, Nashville, TN; Symphogen, Ballerup, Denmark
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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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Bigne F, Romero A, Ferrero C, Puppo MC, Guerrero A. Rheological and Microstructural Study of Wheat Doughs Partially Replaced with Mesquite Flour (Prosopis alba) and Added with Transglutaminase. FOOD BIOPROCESS TECH 2017. [DOI: 10.1007/s11947-017-1869-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [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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Eiras CE, Mottin C, Passetti RAC, Torrecilhas JA, Souza KA, Guerrero A, Prado IN. How dietary cottonseed hull affects the performance of young bulls finished in a high-concentrate system. Anim Prod Sci 2017. [DOI: 10.1071/an15474] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
This study aimed to evaluate the effects of diets composed of cottonseed hull on feed intake, in vitro digestibility, animal performance, carcass characteristics and ingestive behaviour of young bulls (1/2 Simmental × 1/2 Nellore) fed in a high-concentrate system. Thirty crossbred young bulls (319 ± 12.5 kg of bodyweight, and 11 ± 0.8 months old) were assigned to a complete randomised experimental design of three diets (CH21: cottonseed hull 210 g/kg on a DM, basis; CH27: cottonseed hull 270 g/kg on a DM basis; CH33: cottonseed hull 330 g/kg on a DM basis) with 10 animals per group. The animals were kept in a feedlot for 162 days. The cottonseed hull diets had effects on DM intake and neutral detergent fibre intake. The CH21 diet reduced the DM and detergent fibre intakes (kg/day and kg/100 kg bodyweight) and increased the in vitro digestibility of DM. However, the in vitro digestibility of neutral detergent fibre was greater with the CH27 diet. The cottonseed hull diets did not have effects on animal performance or the carcass characteristics of young bulls. However, the CH33 diet reduced the feed efficiency of the animals. A cottonseed hull level up to 270 g/kg of dietary DM may be utilised as a non-forage fibre in high-concentrate diets for young bulls in feedlots.
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Aicua-Rapun I, Martínez-Velasco E, Rojo A, Hernando A, Ruiz M, Carreres A, Porqueres E, Herrero S, Iglesias F, Guerrero AL. Real-life data in 115 chronic migraine patients treated with Onabotulinumtoxin A during more than one year. J Headache Pain 2016; 17:112. [PMID: 27957623 PMCID: PMC5153399 DOI: 10.1186/s10194-016-0702-1] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Accepted: 11/28/2016] [Indexed: 12/11/2022] Open
Abstract
Background OnabotulinumtoxinA (OnabotA) is effective in Chronic Migraine (CM) during first year of treatment and longer. In real clinical setting, CM patients with acute Medication Overuse (MO) or concurrently receiving oral preventatives are treated with OnabotA. We aim to assess evolution of CM patients beyond first year on OnabotA. Methods Data were retrospectively collected in three headache units. We analyzed cases who had received at least five sessions of OnabotA according to PREEMPT protocol. We continued OnabotA therapy when a reduction of number of headache days of at least 30% was achieved. Results We included 115 patients (98 females, 17 males) who completed 7.6 ± 2.3 (5–13) OnabotA procedures. Previously they had not responded to topiramate and, at least, one other preventative. Age at inclusion was 45.3 ± 12 (14–74) years, and latency between CM onset and OnabotA therapy was 43.1 ± 38.2 (6–166) months. At first OnabotA session 92 patients (80%) fulfilled MO criteria and 107 (93%) received a concurrent oral preventative. In 42 cases (36.5%) OnabotA dose was increased over 155 units. After first year in 57 out of 92 patients (61.9%) MO was discontinued. Among those receiving preventatives, in 52 out of 107 they were retired (48.6%). In 22 cases (19.1%) OnabotA administration was delayed to the fourth or fifth month and in 12 (10.4%) it was temporally stopped. Finally, in 18 patients (15.7%) OnabotA was discontinued due to lack of efficacy beyond first year of treatment. Conclusion Our results suggest that discontinuation of acute medication overuse and oral preventive therapies are achievable objectives in long-term using of OnabotA in CM patients.
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Affiliation(s)
- I Aicua-Rapun
- Neurology Department, Hospital Universitario de Burgos, Burgos, Spain
| | - E Martínez-Velasco
- Neurology Department, Hospital Clínico Universitario de Valladolid, Avda. Ramón y Cajal 3, 47005, Valladolid, Spain
| | - A Rojo
- Neurology Department, Hospital Clínico Universitario, Valladolid, Spain
| | - A Hernando
- Neurology Department, Hospital Universitario de Burgos, Burgos, Spain
| | - M Ruiz
- Neurology Department, Hospital Clínico Universitario de Valladolid, Avda. Ramón y Cajal 3, 47005, Valladolid, Spain
| | - A Carreres
- Neurology Department, Hospital Clínico Universitario, Valladolid, Spain
| | - E Porqueres
- Neurology Department, Hospital Universitario de Burgos, Burgos, Spain
| | - S Herrero
- Neurology Department, Hospital Clínico Universitario, Valladolid, Spain
| | - F Iglesias
- Neurology Department, Hospital Universitario de Burgos, Burgos, Spain
| | - A L Guerrero
- Neurology Department, Hospital Clínico Universitario de Valladolid, Avda. Ramón y Cajal 3, 47005, Valladolid, Spain.
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Liu JL, Chen HL, Chen XY, Cui RK, Guerrero A, Zeng XN. Factors influencing aversive learning in the oriental fruit fly, Bactrocera dorsalis. J Comp Physiol A Neuroethol Sens Neural Behav Physiol 2016; 203:57-65. [PMID: 27909789 DOI: 10.1007/s00359-016-1135-7] [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] [Received: 07/06/2016] [Revised: 11/16/2016] [Accepted: 11/17/2016] [Indexed: 10/20/2022]
Abstract
Parameters such as the intensity of conditioned and unconditioned stimuli, the inter-trial interval, and starvation time can influence learning. In this study, the parameters that govern aversive learning in the oriental fruit fly, Bactrocera dorsalis, a serious pest of fruits and vegetables, were examined. Male flies were trained to associate the attractive odorant methyl eugenol, a male lure, with a food punishment, sodium chloride solution, and the conditioned suppression of the proboscis-extension response was investigated. We found that high methyl eugenol concentrations support a stronger association. With increasing concentrations of sodium chloride solution, a steady decrease of proboscis-extension response during six training trials was observed. A high level of learning was achieved with an inter-trial interval of 1-10 min. However, extending the inter-trial interval to 15 min led to reduced learning. No effect of physiological status (starvation time) on learning performance was detected, nor was any non-associative learning effect induced by the repeat presentation of odor or punishment alone. The memory formed after six training trials could be retained for at least 3 h. Our results indicate that aversive learning by oriental fruit flies can be affected by odor, punishment concentration and inter-trial interval.
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Affiliation(s)
- J L Liu
- Key Laboratory of Natural Pesticide and Chemical Biology of the Ministry of Education, College of Agriculture, South China Agricultural University, Guangzhou, Guangdong, China
| | - H L Chen
- Key Laboratory of Natural Pesticide and Chemical Biology of the Ministry of Education, College of Agriculture, South China Agricultural University, Guangzhou, Guangdong, China
| | - X Y Chen
- Key Laboratory of Natural Pesticide and Chemical Biology of the Ministry of Education, College of Agriculture, South China Agricultural University, Guangzhou, Guangdong, China
| | - R K Cui
- Key Laboratory of Natural Pesticide and Chemical Biology of the Ministry of Education, College of Agriculture, South China Agricultural University, Guangzhou, Guangdong, China
| | - A Guerrero
- Department of Biological Chemistry and Molecular Modelling, IQAC (CSIC), Barcelona, Spain
| | - X N Zeng
- Key Laboratory of Natural Pesticide and Chemical Biology of the Ministry of Education, College of Agriculture, South China Agricultural University, Guangzhou, Guangdong, China.
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Poveda A, Oaknin A, Romero I, Guerrero A, Madrid LF, Soto A, Peris C, Guerrero JL. Phase Ib/II study to evaluate the efficacy and tolerability of PM01183 (lurbinectedin) in combination with olaparib in patients with advanced solid tumors. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw374.48] [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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