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Guerrero A, Reddy GVP. Chemical Communication in Insects: New Advances in Integrated Pest Management Strategies. Insects 2023; 14:799. [PMID: 37887811 PMCID: PMC10607249 DOI: 10.3390/insects14100799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 09/28/2023] [Accepted: 09/30/2023] [Indexed: 10/28/2023]
Abstract
Chemical communication plays a pivotal role in many insect behaviors, including food-seeking, recruitment, the recognition of congeners, reproduction, alarm, territorial marking, and survival [...].
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Affiliation(s)
- Angel Guerrero
- Department of Biological Chemistry, Institute of Advanced Chemistry of Catalonia—CSIC, 08034 Barcelona, Spain
| | - Gadi V. P. Reddy
- Southern Insect Management Research Unit, United States Department of Agriculture (USDA)—Agricultural Research Service (ARS), Stoneville, MS 38776, USA;
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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, Blewer AL, Joiner AP, Leong BSH, Shahidah N, Pek PP, Ng YY, Arulanandam S, Østbye T, Gordee A, Kuchibhatla M, Ong MEH. Evaluation of telephone-assisted cardiopulmonary resuscitation recommendations for out-of-hospital cardiac arrest. Resuscitation 2022; 178:87-95. [PMID: 35870555 PMCID: PMC10013180 DOI: 10.1016/j.resuscitation.2022.07.021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 07/11/2022] [Accepted: 07/15/2022] [Indexed: 10/17/2022]
Abstract
AIM OF THE STUDY While out-of-hospital cardiac arrest (OHCA) is associated with poor survival, early bystander CPR (B-CPR) and telephone CPR (T-CPR) improves survival from OHCA. American Heart Association (AHA) Scientific Statements outline recommendations for T-CPR. We assessed these recommendations and hypothesized that meeting performance standards is associated with increased likelihood of survival. Additional variables were analyzed to identify future performance measurements. METHODS We conducted a retrospective cohort study of non-traumatic, adult, OHCA using the Singapore Pan-Asian Resuscitation Outcomes Study. The primary outcome was likelihood of survival; secondary outcomes were pre-hospital Return of Spontaneous Circulation (ROSC) and B-CPR. RESULTS From 2012 to 2016, 2,574 arrests met inclusion criteria. Mean age was 68 ± 15; of 2,574, 1,125 (44%) received T-CPR with 5% (135/2574) survival. T-CPR cases that met the Lerner et al. performance metrics analyzed, demonstrated no statistically significant association with survival. Cases which met the Kurz et al. criteria, "Time for Dispatch to Recognize Need for CPR" and "Time to First Compression," had adjusted odds ratios of survival of 1.01 (95% CI:1.00, 1.02; p = <0.01) and 0.99 (95% CI:0.99, 0.99; p = <0.01), respectively. Identified barriers to CPR decreased the odds of T-CPR and B-CPR being performed. Patients with prehospital ROSC had higher odds of B-CPR being performed. EMS response time < 8 minutes was associated with increased survival among patients receiving T-CPR. CONCLUSION AHA scientific statements on T-CPR programs serve as ideal starting points for increasing the quality of T-CPR systems and patient outcomes. More work is needed to identify other system performance measures.
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Affiliation(s)
- Angel Guerrero
- Division of Emergency Medicine, Department of Surgery, Duke University School of Medicine, Durham, NC, USA
| | - Audrey L Blewer
- Department of Family Medicine and Community Health, Duke University School of Medicine, Durham, NC, USA; Department of Population Health Sciences, Duke University School of Medicine, Durham, NC, USA; Health Services and Systems Research, Duke-NUS Medical School, Singapore, Singapore.
| | - Anjni P Joiner
- Division of Emergency Medicine, Department of Surgery, Duke University School of Medicine, Durham, NC, USA; Duke Global Health Institute, Duke University, Durham, NC, USA
| | - Benjamin S H Leong
- Emergency Medicine Department, National University Hospital, Singapore, Singapore
| | - Nur Shahidah
- Department of Emergency Medicine, Singapore General Hospital, Singapore, Singapore
| | - Pin Pin Pek
- Department of Emergency Medicine, Singapore General Hospital, Singapore, Singapore; Pre-hospital & Emergency Research Centre, Duke-NUS Medical School, Singapore
| | - Yih Yng Ng
- Emergency Department, Tan Tock Seng Hospital, Singapore
| | - Shalini Arulanandam
- Emergency Medical Services Department, Singapore Civil Defence Force, Singapore
| | - Truls Østbye
- Department of Family Medicine and Community Health, Duke University School of Medicine, Durham, NC, USA; Duke Global Health Institute, Duke University, Durham, NC, USA
| | - Alexander Gordee
- BERD Methods Core, Department of Biostatistics and Bioinformatics, Duke University School of Medicine, Durham, NC, USA
| | - Maragatha Kuchibhatla
- BERD Methods Core, Department of Biostatistics and Bioinformatics, Duke University School of Medicine, Durham, NC, USA
| | - Marcus E H Ong
- Health Services and Systems Research, Duke-NUS Medical School, Singapore, Singapore; Department of Emergency Medicine, Singapore General Hospital, Singapore, Singapore
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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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Ayala Guerrero F, Mexicano Medina G, Guerrero A, Gutiérrez Chávez CA, Lazo Sánchez LA, Mateos Salgado EL. Sleep and behavioral disturbances induced by epilepsy: Protective effect of Gabapentin. RIP/IJP 2022. [DOI: 10.30849/ripijp.v56i2.1458] [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] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Numerous sleep disturbances induced by nocturnal epilepsy have been reported. Gabapentin (GBP) is used as an adjuvant or as a monotherapeutic treatment as it induces significant improvement in patients with partial or secondaryly widespread focal seizures. In experimental animal models of epilepsy with pentilenetetrazole (PTZ), GBP protects against the generated seizures. The objective of this work was to investigate its effectiveness in protecting against motor and sleep disturbances caused by seizures. Polygraphic studies were conducted in male wistar rats, separated into 4 groups. After administration of saline solution, a check record was carried out on each group. Subsequently, one group received 50 mg/kg of PTZ, while the other three groups received 15, 30 or 60 mg/kg GBP, 30 minutes prior to PTZ administration. After administration of PTZ, electrophysiological and behavioral manifestations characterizing seizures were observed. In addition, surveillance states were significantly altered, increasing the amount of wakefulness, while sleep was inhibited over a period of time. The administration of increasing doses of GBP tended to inhibit the presence of abnormal motor behaviors, facilitating the presence of sleep.
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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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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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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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Rizvi SAH, George J, Reddy GVP, Zeng X, Guerrero A. Latest Developments in Insect Sex Pheromone Research and Its Application in Agricultural Pest Management. Insects 2021; 12:insects12060484. [PMID: 34071020 PMCID: PMC8224804 DOI: 10.3390/insects12060484] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 05/14/2021] [Accepted: 05/20/2021] [Indexed: 02/07/2023]
Abstract
Since the first identification of the silkworm moth sex pheromone in 1959, significant research has been reported on identifying and unravelling the sex pheromone mechanisms of hundreds of insect species. In the past two decades, the number of research studies on new insect pheromones, pheromone biosynthesis, mode of action, peripheral olfactory and neural mechanisms, and their practical applications in Integrated Pest Management has increased dramatically. An interdisciplinary approach that uses the advances and new techniques in analytical chemistry, chemical ecology, neurophysiology, genetics, and evolutionary and molecular biology has helped us to better understand the pheromone perception mechanisms and its practical application in agricultural pest management. In this review, we present the most recent developments in pheromone research and its application in the past two decades.
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Affiliation(s)
| | - Justin George
- Southern Insect Management Research Unit, USDA-ARS, Stoneville, MS 38776, USA; (J.G.); (G.V.P.R.)
| | - Gadi V. P. Reddy
- Southern Insect Management Research Unit, USDA-ARS, Stoneville, MS 38776, USA; (J.G.); (G.V.P.R.)
| | - Xinnian Zeng
- College of Plant Protection, South China Agricultural University, Guangzhou 510642, China
- Correspondence: (X.Z.); (A.G.)
| | - Angel Guerrero
- Department of Biological Chemistry, Institute of Advanced Chemistry of Catalonia-CSIC, 08034 Barcelona, Spain
- Correspondence: (X.Z.); (A.G.)
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11
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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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Álvarez I, Guerrero A, López-Tarruella S, Martínez P, Mori M, Falo C, Antolín S, Rodríguez CA, Margeli M, Garau I, Tibau A, Moreno D, Cruz J, Echarri MJ, Antón A, Rodríguez-Lescure Á, Escudero MJ, Bezares S, Rojo F, Jara C. Abstract PS7-24: Characteristics of HR+/HER2- patients with recurrent disease by HER2 expression from a prospective registry of unresectable locally advanced or metastatic breast cancer: GEICAM/2014-03 (RegistEM). Cancer Res 2021. [DOI: 10.1158/1538-7445.sabcs20-ps7-24] [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: The RegistEM study is a non-interventional cohort study that will provide prospective data from >1,800 advanced breast cancer (ABC) patients (pts), either after recurrence or as first diagnosis in 38 Spanish sites. Primary objective is the distribution of BC subtypes. A new nomenclature has been proposed for those cases with immunohistochemistry (IHC) 1+ or 2+ and negative in situ hybridization (ISH), HER2-low BC. In clinical practice these tumors are reported as HER2 negative. This subpopulation has been identified as an interesting group from a clinical perspective. Methods: In this analysis (cut-off date 01/April/2020; database is ongoing) we describe the characteristics of 229 pts with hormone receptor (HR)+/HER2-low BC documented in a metastatic lesion after early disease recurrence and who received adjuvant endocrine therapy (ET). Three subgroups of pts have been considered for this analysis based on HER2 results: HER2 IHC 0, HER2-low, and HER2 ISH- (without IHC). Biological samples collection is part of study procedures. Results: The distribution of HER2 IHC 0, HER2-low, and HER2 ISH- subgroups was 52.4%, 42.8% and 4.8%, respectively. The median time to advance disease was 98.6, 88.8 and 106.9 mo in each group. Almost all pts were female and Caucasian (99%), and at ABC diagnosis, 75.5% were postmenopausal. Median age was 59 years (range 33-88). Fourteen (6.1%) pts had HER2+ (IHC 3+ or ISH amplified) BC subtype during their disease. Family history of BC and/or ovarian cancer was reported in 31.4% pts, an hereditary-risk genetic test was performed in 11.4% (n=26) pts in total and BRCA2 gene mutation (n=6) was the only one reported. The most frequent metastases are included in Table 1. Visceral disease was present in 63.3% pts and 76% pts had ≤2 locations. The most frequent 1st-line therapies were ET/biological therapy (BT) (46.7%) and ET (28.8%), and were equal distributed in the 3 subgroups. The most common ET/BT regimens were aromatase inhibitor (AI)/cyclin-dependent kinase 4/6 inhibitor (CDKi) (49.1%/48.9%/42.9% in each subgroup) and fulvestrant (FUL)/CDKi (35.8%/27.7%/28.6%); AIs (50%/64%/66.7%) and FUL (31.6%/20%/0%) were also the most common drugs for monotherapy ET. A 2nd-line therapy was reported in ~53% pts in HER2 IHC 0 and HER2-low, and in 36% pts in HER2 ISH-. The median time to progression (TTP) to 1st-line therapy was 11.4 mo (1.2-37.0), being similar in pts with HER2 IHC 0 and HER2-low (~11 mo), and higher in pts with HER2 ISH- (16 mo). The most frequent 2nd-line therapies were ET/BT (~34% in HER2 IHC 0 and HER2-low, and 25% in HER2 ISH-) [FUL/CDKi (36.4%/47.1%/100%), AI/CDKi (36.4%/23.5%/0%)], chemotherapy as monotherapy (17 pts out of 63 in HER2 IHC 0, 17 pts out of 53 in HER2-low and 1 pt (capecitabine) out of 4 in HER2 FISH-) (capecitabine 29.4%/52.9% in HER2 IHC 0 and HER2-low). Median duration of 2nd-line therapy was ~5 mo in HER2 IHC 0 and ~8 mo in HER2-low and HER2 ISH-; disease progression was reported in 52.4%/62.3%/50% pts, respectively. Conclusions: In this population of HR+ tumors, the proportion of HER2 IHC 0 and HER2-low groups was similar. Time to advance relapse and the distribution of distant metastases were similar among the groups. The most common first- and second-line therapy was the ET/BT combination, with AI/CDKi and FUL/CDKi, respectively.
Table 1Location of metastatic lesionsIHC 0HER2-lowISH- non IHCN=120 N (%)N=98 N (%)N=11 N (%)Bone74 (61.7)55 (56.1)6 (54.5)Liver36 (30.0)37 (37.8)3 (27.3)Lung27 (22.5)21 (21.4)5 (45.5)Lymph Node27 (22.5)21 (21.4)2 (18.2)Soft Tissue6 (5.0)11 (11.2)0CNS3 (2.5)4 (4.1)0Other43 (35.8)31 (31.6)5 (45.5)
Citation Format: Isabel Álvarez, Angel Guerrero, Sara López-Tarruella, Purificación Martínez, Marta Mori, Catalina Falo, Silvia Antolín, César A Rodríguez, Mireia Margeli, Isabel Garau, Ariadna Tibau, Diana Moreno, Josefina Cruz, María José Echarri, Antonio Antón, Álvaro Rodríguez-Lescure, María José Escudero, Susana Bezares, Federico Rojo, Carlos Jara. Characteristics of HR+/HER2- patients with recurrent disease by HER2 expression from a prospective registry of unresectable locally advanced or metastatic breast cancer: GEICAM/2014-03 (RegistEM) [abstract]. In: Proceedings of the 2020 San Antonio Breast Cancer Virtual Symposium; 2020 Dec 8-11; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2021;81(4 Suppl):Abstract nr PS7-24.
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Affiliation(s)
- Isabel Álvarez
- 1Hospital Universitario Donostia-BioDonostia. GEICAM Spanish Breast Cancer Group, San Sebastián, Spain
| | - Angel Guerrero
- 2Fundación Instituto Valenciano de Oncología (FIVO). GEICAM Spanish Breast Cancer Group, Valencia, Spain
| | - Sara López-Tarruella
- 34.Hospital Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM), Universidad Complutense. CIBERONC-ISCIII. GEICAM Spanish Breast Cancer Group, Madrid, Spain
| | | | - Marta Mori
- 5Complejo Hospitalario Universitario de Gran Canaria Dr. Negrín. GEICAM Spanish Breast Cancer Group, Las Palmas de Gran Canaria, Spain
| | - Catalina Falo
- 6ICO Hospitalet. GEICAM Spanish Breast Cancer Group, Barcelona, Spain
| | - Silvia Antolín
- 7Complejo Hospitalario Universitario A Coruña (CHUAC). GEICAM Spanish Breast Cancer Group, A Coruña, Spain
| | - César A Rodríguez
- 8Hospital Universitario de Salamanca-IBSAL. GEICAM Spanish Breast Cancer Group, Salamanca, Spain
| | - Mireia Margeli
- 9ICO-Badalona. Hospital Germans Trias i Pujol. GEICAM Spanish Breast Cancer Group, Badalona, Barcelona, Spain
| | - Isabel Garau
- 10Hospital Son Llátzer. GEICAM Spanish Breast Cancer Group, Palma de Mallorca, Spain
| | - Ariadna Tibau
- 11Hospital de la Santa Creu i Sant Pau. GEICAM Spanish Breast Cancer Group, Barcelona, Spain
| | - Diana Moreno
- 12Hospital Universitario Fundación Alcorcón. GEICAM Spanish Breast Cancer Group, Madrid, Spain
| | - Josefina Cruz
- 13Hospital Universitario de Canarias. GEICAM Spanish Breast Cancer Group, Tenerife, Spain
| | - María José Echarri
- 14Hospital Universitario Severo Ochoa. GEICAM Spanish Breast Cancer Group, Madrid, Spain
| | - Antonio Antón
- 15Medical Oncology Department, Miguel Servet University Hospital, Aragon Health Research Institute. GEICAM Spanish Breast Cancer Group, Zaragoza, Spain. GEICAM Spanish Breast Cancer Group, Zaragoza, Spain
| | | | | | | | - Federico Rojo
- 18Hospital Universitario Fundación Jiménez Díaz. CIBERONC-ISCIII GEICAM Spanish Breast Cancer Group, Madrid, Spain
| | - Carlos Jara
- 19Hospital Universitario Fundación Alcorcón, Universidad Rey Juan Carlos. GEICAM Spanish Breast Cancer Group, Madrid, Spain
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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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14
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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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15
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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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16
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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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18
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Guerrero A, Theophanous RG. A Case Report of a Migrated Pelvic Coil Causing Pulmonary Infarct in an Adult Female. Clin Pract Cases Emerg Med 2020; 4:436-439. [PMID: 32926706 PMCID: PMC7434267 DOI: 10.5811/cpcem.2020.5.47463] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [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: 03/28/2020] [Accepted: 05/20/2020] [Indexed: 11/26/2022] Open
Abstract
Introduction It is possible but rare for a pelvic coil to migrate to the pulmonary vasculature, which can cause cardiac damage, arrhythmias, pulmonary infarct, and thrombophlebitis. The few cases reported typically do not describe removal of the coils, as patients were asymptomatic. Case report A 39-year-old female with recent coil embolization of her left internal iliac and ovarian veins for pelvic congestion syndrome presented with one month of right-sided chest pain and dyspnea. Imaging revealed a migrated pelvic coil in the patient’s right main pulmonary artery with pulmonary infarcts and a pleural effusion. Conclusion Interventional radiology successfully removed the coil endovascularly, with significant symptom improvement. This prevented a more-invasive open surgical procedure and resolved symptoms without requiring long-term anticoagulation or monitoring.
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Affiliation(s)
- Angel Guerrero
- Duke University Medical Center, Department of Surgery, Division of Emergency Medicine, Durham, North Carolina
| | - Rebecca G Theophanous
- Duke University Medical Center, Department of Surgery, Division of Emergency Medicine, Durham, North Carolina
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19
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Martínez D, Guerrero A, Prieto E, Álvarez I, Cisneros C. Clusters formation and fragmentation of nitromethane at 266 nm. MethodsX 2020; 7:100909. [PMID: 32461922 PMCID: PMC7240713 DOI: 10.1016/j.mex.2020.100909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Accepted: 04/27/2020] [Indexed: 11/26/2022] Open
Abstract
We carry out experiments on the fragmentation of nitromethane by multiphoton absorption at the wavelength 266 nm. This was conducted in a reflectron (Jordan), modified in the laboratory. Due to the large number of fragments, special care has been taken into the calibration of the system, in the simultaneity between the laser pulse and the sample, and the associated electronics to ensure that produced fragment spectra arise from the interaction laser-sample. We emphasize the next aspects of the method:Simple design for introducing a gas sample at laser interaction region to facilitate the cluster formation Astonishing number of fragments produced by multiphoton absorption.
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Affiliation(s)
- D Martínez
- Institute of Physical Science- UNAM, Av. Universidad s/n Chamilpa, 62210, Cuernavaca, Morelos, México
| | - A Guerrero
- Institute of Physical Science- UNAM, Av. Universidad s/n Chamilpa, 62210, Cuernavaca, Morelos, México
| | - E Prieto
- Institute of Physical Science- UNAM, Av. Universidad s/n Chamilpa, 62210, Cuernavaca, Morelos, México
| | - I Álvarez
- Institute of Physical Science- UNAM, Av. Universidad s/n Chamilpa, 62210, Cuernavaca, Morelos, México
| | - C Cisneros
- Institute of Physical Science- UNAM, Av. Universidad s/n Chamilpa, 62210, Cuernavaca, Morelos, México
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20
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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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21
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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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22
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Jara C, Alvarez I, Vila MM, Rodriguez CA, Martinez P, Batista JN, Alonso Romero JL, Antolín Novoa S, Ruíz S, Guerrero A, Tusquets I, Anton A, Chacon JI, Rodríguez-Lescure Á, Tibau Martorell A, Varela Ferreiro S, Miralles JJ, Bezares S, Rojo F, López-Tarruella S. First results of a prospective registry in unresectable locally advanced or metastatic breast cancer patients: GEICAM/2014-03 (RegistEM). J Clin Oncol 2019. [DOI: 10.1200/jco.2019.37.15_suppl.1077] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
1077 Background: In Spain there is limited prospective data for unresectable locally advanced breast cancer (ULABC) or metastatic breast cancer (MBC) patients (pts) treated as per clinical practice. RegistEM study will provide epidemiological, pathological and clinical data, including treatments given for different disease stages. Understanding the real distribution of the different BC subtypes is the primary objective. Methods: This is a non-interventional cohort study enrolling approximately 1,400 pts with advanced disease diagnosed from January 2016 to December 2018, either after recurrence or as first diagnosis, in 38 Spanish sites. Biological samples (primary tumor, metastatic lesions, blood) are currently being collected. In this first analysis, we include 489 pts who met study criteria before October 31, 2017. All data are described in two subgroups: on the most recent tumor lesion or on the primary breast tumor. Results: At first diagnosis, 67.9%, 31.5% and 0.6% of pts had early BC (EBC), MBC and ULABC, respectively. In the total analysis population, median age at diagnosis of advanced disease was 59.6 years, most of pts were white (98.2%), female (99.4%) and postmenopausal (70%). Family history of BC and ovarian cancer was reported in 5.7% pts. In ~390 pts BC clinical subtypes distribution was luminal B(HER2-)-like (~55%), luminal B(HER2+)-like (~16%), luminal A-like or triple negative (TN) (~10% each) and HER2 enriched-like (~8%). Median time to recurrence (years) in EBC pts was: luminal A-like 5.8, luminal B(HER2-)-like 5.1, luminal B(HER2+)-like 3.9, HER2 enriched-like 2.7 and TN 1.7. Bone (59%), visceral (58%) and lymph node (27%) lesions were the most frequent metastatic locations. The two most frequent therapies in first line consisted in: endocrine therapy (ET) (47%) and ET+biological therapy (BT) (29%) for luminal A-like; ET (32%) and ET+BT (32%) for luminal B(HER2-)-like; chemotherapy (CT)+ET+BT (43%) and CT+BT (24%) for luminal B(HER2+)-like; CT+BT (68%) and CT (16%) for HER2 enriched-like; CT (59%) and CT+BT (34%) for TN. Conclusions: These first data confirm that luminal B (HER2-)-like subtype is the most predominant in MBC.
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Affiliation(s)
- Carlos Jara
- Hospital Universitario Fundación Alcorcón, Medical Oncology Department, GEICAM, Spanish Breast Cancer Group, Madrid, Spain
| | - Isabel Alvarez
- Hospital Donostia, GEICAM Spanish Breast Cancer Group, San Sebastian, Spain
| | - Mireia Margeli Vila
- Medical Oncology Department. Catalan Institute of Oncology, Hospital Germans Trias i Pujol, GEICAM Spanish Breast Cancer Group., Badalona, Spain
| | - Cesar Augusto Rodriguez
- Hospital Universitario de Salamanca-IBSAL, GEICAM Spanish Breast Cancer Group, Salamanca, Spain
| | | | - J. Norberto Batista
- Hospital Universitario de Canarias, GEICAM Spanish Breast Cancer Group, La Laguna Tenerife, Spain
| | - Jose Luis Alonso Romero
- Hospital Clinico Universitario Virgen de la Arrixaca, GEICAM Spanish Breast Cancer Group, Murcia, Spain
| | - Silvia Antolín Novoa
- Oncology Service, Complejo Hospitalario Universitario A Coruña, GEICAM Spanish Breast Cancer Group., A Coruña, Spain
| | - Sofía Ruíz
- Unidad de Oncología Intercentros Hospitales Regional y Virgen de la Victoria, GEICAM Spanish Breast Cancer Group, Málaga, Spain
| | - Angel Guerrero
- Instituto Valenciano de Oncología, GEICAM Spanish Breast Cancer Group, Valencia, Spain
| | - Ignasi Tusquets
- Hospital del Mar, Centro de Investigación Biomédica en Red de Oncología, CIBERONC-ISCIII, GEICAM Spanish Breast Cancer Group, Barcelona, Spain
| | - Antonio Anton
- Servicio de Oncología Médica, Hospital Universitario Miguel Servet, GEICAM Spanish Breast Cancer Group, Zaragoza, Spain
| | - Jose Ignacio Chacon
- Hospital Virgen de la Salud, GEICAM Spanish Breast Cancer Group, Toledo, Spain
| | | | | | | | | | | | - Federico Rojo
- Fundación Jiménez Díaz,Madrid.Centro de Investigación Biomédica en Red de Oncología, Centro de Investigación Biomédica en Red de Oncología, CIBERONC-ISCIII.GEICAM Spanish Breast Cancer Group., Madrid, Spain
| | - Sara López-Tarruella
- 20. Hospital Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM), Universidad Complutense, 11. Centro de Investigación Biomédica en Red de Oncología, CIBERONC-ISCIII, GEICAM Spanish Breast Cancer Group., Madrid, Spain
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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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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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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, Ramos VE, López S, Alvarez JM, Domínguez A, Coca-Abia MM, Bosch MP, Quero C. Enantioselective Synthesis and Activity of All Diastereoisomers of ( E)-Phytal, a Pheromone Component of the Moroccan Locust, Dociostaurus maroccanus. J Agric Food Chem 2019; 67:72-80. [PMID: 30554510 DOI: 10.1021/acs.jafc.8b06346] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The Moroccan locust, Dociostaurus maroccanus (Thunberg, 1815) (Orthoptera: Acrididae), is a polyphagous pest capable of inflicting large losses in agriculture under favorable environmental and climatic conditions. Currently, control of the pest relies solely on the application of conventional insecticides that have negative effects on the environment and human safety. In the search for a more rational, environmentally acceptable approach for locust control, we have previously reported that ( Z/ E)-phytal (1) is a male-produced candidate sex pheromone of this acridid. This molecule, with two stereogenic centers at C-7 and C-11, has four different diastereomers along with the Z/ E stereochemistry of the double bond at C-2. In this paper, we present for the first time the enantioselective synthesis of the four diastereomers of ( E)-phytal and their electrophysiological and behavioral activity on males and females. Our results demonstrate that the ( R, R)-phytal is the most active diastereomer in both assays, significantly attracting females in a double-choice Y olfactometer, and confirming the previous chromatographic assignment as component of the sex pheromone of the Moroccan locust.
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Affiliation(s)
- Angel Guerrero
- Department of Biological Chemistry and Molecular Modelling , Institute of Advanced Chemistry of Catalonia (CSIC) , 08034 Barcelona , Spain
| | - Victoria Elena Ramos
- Department of Biological Chemistry and Molecular Modelling , Institute of Advanced Chemistry of Catalonia (CSIC) , 08034 Barcelona , Spain
| | - Sergio López
- Department of Biological Chemistry and Molecular Modelling , Institute of Advanced Chemistry of Catalonia (CSIC) , 08034 Barcelona , Spain
| | - José María Alvarez
- Department of Biological Chemistry and Molecular Modelling , Institute of Advanced Chemistry of Catalonia (CSIC) , 08034 Barcelona , Spain
| | - Aroa Domínguez
- Department of Biological Chemistry and Molecular Modelling , Institute of Advanced Chemistry of Catalonia (CSIC) , 08034 Barcelona , Spain
| | - María Milagro Coca-Abia
- Plant Health Department , Centro de Investigación y Tecnología Agroalimentaria de Aragón and Instituto Agroalimentario de Aragón-IA2, CITA-Zaragoza University , 50059 Zaragoza , Spain
| | - María Pilar Bosch
- Department of Biological Chemistry and Molecular Modelling , Institute of Advanced Chemistry of Catalonia (CSIC) , 08034 Barcelona , Spain
| | - Carmen Quero
- Department of Biological Chemistry and Molecular Modelling , Institute of Advanced Chemistry of Catalonia (CSIC) , 08034 Barcelona , Spain
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Weiss SJ, Guerrero A, Root-Bowman C, Ernst A, Krumperman K, Femling J, Froman P. Sepsis alerts in EMS and the results of pre-hospital ETCO2. Am J Emerg Med 2018; 37:1505-1509. [PMID: 30454985 DOI: 10.1016/j.ajem.2018.11.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Revised: 10/22/2018] [Accepted: 11/06/2018] [Indexed: 01/20/2023] Open
Abstract
BACKGROUND Field sepsis alerts have the ability to expedite initial ED sepsis treatment. Our hypothesis is that in patients that meet EMS sepsis alert criteria there is a strong relationship between prehospital end-tidal carbon dioxide (ETCO2) readings and the outcome of diagnosed infection. METHODS In 2014, our EMS service initiated a protocol requiring hospitals to receive notification of a "sepsis alert" on all suspected sepsis patients. The EMS service transports 70,000 patients/year to a number of urban centers. All patients transported to our major urban teaching hospital by our EMS service in one year in which a sepsis alert was announced were included in this study. The primary outcome variable was diagnosed infection and secondary outcomes were hospital admission, ICU admission and mortality. Positive lactate was defined as >4.0 mmol/L. ROC curve analysis was used to define the best cutoff for ETCO2. RESULTS 351 patients were announced as EMS sepsis alert patients and transported to our center over a one year period. Positive outcomes were as follows: diagnosed infection in 28% of patients, hospital admission in 63% and ICU admission in 11%. The correlation between lactate and ETCO2 was -0.45. A ROC curve analysis of ETCO2 vs. lactate >4 found that the best cutoff to predict a high lactate was an ETCO2 of 25 or less, which was considered a positive ETCO2 (AUC = 0.73). 27% of patients had a positive ETCO2 and 24% had a positive lactate. A positive ETCO2 predicted a positive lactate with 76% accuracy, 63% sensitivity and 80% specificity. 27% of those with a positive ETCO2 and 44% of those with a positive lactate had a diagnosed infection. 59% of those with a positive ETCO2 and 89% of those with a positive lactate had admission to the hospital. 15% of those with a positive ETCO2 and 18% of those with a positive lactate had admission to the ICU. Neither lactate nor ETCO2 were predictive of an increased risk for diagnosed infection, hospital admission or ICU admission in this patient population. CONCLUSION While ETCO2 predicted the initial ED lactate levels it did not predict diagnosed infection, admission to the hospital or ICU admission in our patient population but did predict mortality.
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Affiliation(s)
- Steven J Weiss
- University of New Mexico Department of Emergency Medicine, United States of America.
| | - Angel Guerrero
- University of New Mexico Department of Emergency Medicine, United States of America
| | | | - Amy Ernst
- University of New Mexico Department of Emergency Medicine, United States of America
| | - Kurt Krumperman
- University of New Mexico Department of Emergency Medicine, United States of America
| | - Jon Femling
- University of New Mexico Department of Emergency Medicine, United States of America
| | - Phil Froman
- University of New Mexico Department of Emergency Medicine, United States of America
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Abstract
BACKGROUND Adenosine is an endogenous purine nucleoside, which mediates a variety of important biological processes and diseases, such as vasodilation, inflammation, cancer, wound healing, ischemia reperfusion injury, Parkinson disease, infectious diseases, and other CNS disorders. Particularly important are the A2A receptors that have been expressed in the lung, liver, heart, cardiovascular tissues, leukocytes, neutrophils, and endothelial cells. This review provides an update of the latest A2A receptor agonists developed in the period 2005-2017, their selectivity regarding other adenosine receptors and their potential therapeutic applications. METHODS I have conducted an extensive search from the most common bibliographic databases for critically review the most recent works on the A2A receptor agonists and their therapeutic applications in inflammation, asthma and chronic obstructive pulmonary disease, myocardial perfusion imaging, sepsis, rheumatoid arthritis, and wound healing, among others. RESULTS In the last decade, a great deal of effort has been devoted to develop adenosine receptor agonists and antagonists for treatment of a number of diseases. Thus, for A2A receptor agonists more than 130 papers and reviews have been found, many of them highlighting the usefulness of these compounds in the field. CONCLUSIONS Although so far many of the A2A receptor agonists have failed in clinical trials due to their side effects, some of them have been approved for protection against cardiac ischemia-reperfusion injury and anemia. The recently reported crystal structure of the human A2A receptor in complex with the agonist UK-432097 is a fundamental keystone for the development of new and selective A2A ligands with new therapeutic applications.
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Affiliation(s)
- Angel Guerrero
- Department of Biological Chemistry and Molecular Modelling, Institute of Advanced Chemistry of Catalonia (CSIC), 08034 Barcelona, Spain
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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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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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González MA, Bandi KK, Bell MJ, Brazil RP, Dilger E, Guerrero A, Courtenay O, Hamilton JGC. A temporal comparison of sex-aggregation pheromone gland content and dynamics of release in three members of the Lutzomyia longipalpis (Diptera: Psychodidae) species complex. PLoS Negl Trop Dis 2017; 11:e0006071. [PMID: 29194438 PMCID: PMC5745125 DOI: 10.1371/journal.pntd.0006071] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2017] [Revised: 12/27/2017] [Accepted: 10/25/2017] [Indexed: 11/19/2022] Open
Abstract
Background Lutzomyia longipalpis is the South American vector of Leishmania infantum, the etiologic agent of visceral leishmaniasis (VL). Male L. longipalpis produce a sex-aggregation pheromone that is critical in mating, yet very little is known about its accumulation over time or factors involved in release. This laboratory study aimed to compare accumulation of pheromone over time and determine factors that might influence release in three members of the L. longipalpis species complex. Methodology/Principal findings We investigated male sex-aggregation pheromone gland content at different ages and the release rate of pheromone in the presence or absence of females under different light conditions by gas chromatography-mass spectrometry (GC-MS). Pheromone gland content was determined by extraction of whole males and pheromone release rate was determined by collection of headspace volatiles. Pheromone gland content appeared age-related and pheromone began to accumulate between 6 to 12 h post eclosion and gradually increased until males were 7–9 days old. The greatest amount was detected in 9-day old Campo Grande males ((S)-9-methylgermacrene-B; X ± SE: 203.5 ± 57.4 ng/male) followed by Sobral 2S males (diterpene; 199.9 ± 34.3) and Jacobina males ((1S,3S,7R)-3-methyl-α-himachalene; 128.8 ± 30.3) at 7 days old. Pheromone release was not continuous over time. During a 4-hour period, the greatest quantities of pheromone were released during the first hour, when wing beating activity was most intense. It was then substantially diminished for the remainder of the time. During a 24 h period, 4–5 day old male sand flies released approximately 63 ± 11% of the pheromone content of their glands, depending on the chemotype. The presence of females significantly increased pheromone release rate. The light regime under which the sand flies were held had little influence on pheromone release except on Sobral 2S chemotype. Conclusions/Significance Accumulation of pheromone appears to occur at different rates in the different chemotypes examined and results in differing amounts being present in glands over time. Release of accumulated pheromone is not passive, but depends on biotic (presence of females) and abiotic (light) circumstances. There are marked differences in content and release between the members of the complex suggesting important behavioural, biosynthetic and ecological differences between them. The Dipteran subfamily Phlebotominae includes the genera Lutzomyia and Phlebotomus among which several species are important vectors of parasitic and bacterial pathogens. The sand fly Lutzomyia longipalpis is considered the main vector of visceral leishmaniasis (VL) in the New World. Based on the main component of the male sex-aggregation pheromone gland, different sex pheromone-producing populations (chemotypes) of L. longipalpis are recognized in Brazil. Given the importance of the sex-aggregation pheromones in the biology of this species complex, we present here the first attempt to study how pheromone accumulates in the glands over time and factors that might influence its release in the three most common chemotypes from Brazil. Our results demonstrated that pheromone first starts to accumulate a few hours post-eclosion (6–12 h) and this continues over 15 days. Pheromone release is a dynamic process which varies between the 3 chemotypes depending on biotic factors, such as light regime and presence/absence of conspecific females. This work provides valuable information, critical to our understanding of the behaviour and ecology of L. longipalpis sand flies and which will contribute to investigations to improve field-based pheromone control and monitoring of L. longipalpis sand flies.
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Affiliation(s)
- Mikel A. González
- Division of Biomedical and Life Sciences, Faculty of Health and Medicine, Lancaster University, Lancashire, United Kingdom
| | - Krishna K. Bandi
- Division of Biomedical and Life Sciences, Faculty of Health and Medicine, Lancaster University, Lancashire, United Kingdom
| | - Melissa J. Bell
- Division of Biomedical and Life Sciences, Faculty of Health and Medicine, Lancaster University, Lancashire, United Kingdom
| | - Reginaldo P. Brazil
- Laboratório de Doenças Parasitárias, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, Brazil
| | - Erin Dilger
- School of Life Sciences, University of Warwick, Coventry, United Kingdom
| | - Angel Guerrero
- Department of Biological Chemistry and Molecular Modelling, IQAC (CSIC), Barcelona, Spain
| | - Orin Courtenay
- School of Life Sciences, University of Warwick, Coventry, United Kingdom
| | - James G. C. Hamilton
- Division of Biomedical and Life Sciences, Faculty of Health and Medicine, Lancaster University, Lancashire, United Kingdom
- * E-mail:
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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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Herrero-Vicent C, Guerrero A, Gavilá J, Gozalbo F, Hernández A, Sandiego S, Algarra MA, Calatrava A, Guillem-Porta V, Ruiz-Simón A. Predictive and prognostic impact of tumour-infiltrating lymphocytes in triple-negative breast cancer treated with neoadjuvant chemotherapy. Ecancermedicalscience 2017; 11:759. [PMID: 28900472 PMCID: PMC5574654 DOI: 10.3332/ecancer.2017.759] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Indexed: 12/17/2022] Open
Abstract
INTRODUCTION In locally and locally advanced triple-negative breast cancer (TNBC), neoadjuvant chemotherapy (NAC) only induces a pCR in 30-35% of patients. Clinical and pathological factors are not enough to distinguish the patients who have no chance of a pCR or not. The tumour microenvironment is critical for cancer and tumour-infiltrating lymphocytes (TIL). Moreover, the NAC scenario is the perfect setting to study possible changes in TIL levels. MATERIAL AND METHODS Using our prospective maintained breast cancer (BC) database, we identified 164 TNBC patients treated with NAC between 1998 and 2015 with enough samples of diagnostic biopsy and after surgery. Evaluation of TILs before and after NAC followed a standardised methodology for visual assessment on haematoxylin-eosin sections and the amounts of TILs were quantitated in deciles. We categorised lymphocyte-predominant breast cancer cutoff according to a receiver operating characteristic (ROC) analysis. We categorised LPBC as involving > 40% lymphocytic infiltration tumour stroma. The primary end point was predictive value of TILs to NAC, and the secondary end point was disease-free survival (DFS). DFS was analysed using the Kaplan-Meier method and the groups were compared with a long-rank test. Univariate and multivariate Cox models were used to generate hazard ratios for determining associations between variables such as TIL after NAC and DFS. RESULTS A total of 164 TNBC patients were treated with NAC and surgery. The main patients' characteristics are listed in Table 1. We identify different pathological complete response to anthracycline and taxane-based NAC; LPBC subgroup 51 from 58 patients (88%) pCR versus non- lymphocyte-predominant breast cancer (LPBC) subgroup 10 from 106 (9%) pCR, p = 0.001. At a median follow-up of 78 months, LPBC was associated with better DFS; the three-year Kaplan-Meier estimates for DFS were 2% and 30 % for patients with LPBC and non-LPBC, respectively, p = 0.01. Univariate and multivariate analysis confirmed TIL to be an independent prognostic marker of DFS. CONCLUSIONS Tumour-infiltrating lymphocytes could be routinely used in locally advanced TNBC treated with anthracycline and taxane, such as biomarker, to be enabled the identification of different two subgroups: LPBC patients have a very high response to NAC pCR 88%, meanwhile non-LPBC patients only achieve 9%. Moreover, non-LPBC patients have a worse prognosis than LPBC patients. This data verified the predictive and prognostic value of TIL.
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Affiliation(s)
| | - Angel Guerrero
- Medical Oncology Department, Valencian Institute of Oncology, 46008 Valencia, Spain
| | - Joaquin Gavilá
- Medical Oncology Department, Valencian Institute of Oncology, 46008 Valencia, Spain
| | - Francisco Gozalbo
- Pathology Department, Valencian Institute of Oncology, 46008 Valencia, Spain
| | - Abraham Hernández
- Medical Oncology Department, Valencian Institute of Oncology, 46008 Valencia, Spain
| | - Sergio Sandiego
- Medical Oncology Department, Valencian Institute of Oncology, 46008 Valencia, Spain
| | | | - Ana Calatrava
- Pathology Department, Valencian Institute of Oncology, 46008 Valencia, Spain
| | | | - Amparo Ruiz-Simón
- Medical Oncology Department, Valencian Institute of Oncology, 46008 Valencia, 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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Martín M, Chacón JI, Antón A, Plazaola A, García-Martínez E, Seguí MA, Sánchez-Rovira P, Palacios J, Calvo L, Esteban C, Espinosa E, Barnadas A, Batista N, Guerrero A, Muñoz M, Romio E, Rodríguez-Martín C, Caballero R, Casas MI, Rojo F, Carrasco E, Antolín S. Neoadjuvant Therapy with Weekly Nanoparticle Albumin-Bound Paclitaxel for Luminal Early Breast Cancer Patients: Results from the NABRAX Study (GEICAM/2011-02), a Multicenter, Non-Randomized, Phase II Trial, with a Companion Biomarker Analysis. Oncologist 2017; 22:1301-1308. [PMID: 28701571 DOI: 10.1634/theoncologist.2017-0052] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Accepted: 05/09/2017] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND Nanoparticle albumin-bound paclitaxel (nab-Paclitaxel) is an alternative to standard taxanes for breast cancer (BC) treatment. We evaluated nab-Paclitaxel efficacy as neoadjuvant treatment for early estrogen receptor-positive (ER+), human epidermal growth factor receptor 2-negative (HER2-) disease. MATERIALS AND METHODS Women with ER+, HER2-, stage II-III BC were treated preoperatively with four cycles of weekly nab-Paclitaxel (150 mg/m2), 3 weeks on and 1 week off. We hypothesized that poor pathological response rate (residual cancer burden [RCB] III; Symmans criteria) would be ≤16%. RESULTS Eighty-one patients with a median age of 47 years were treated; 64.2% were premenopausal, and 69% of tumors were stage II. Residual cancer burden III rate was 28.4% (95% confidence interval [CI]: 18.6%-38.2%), RCB 0+I (good response) rate was 24.7% (95% CI: 15.3%-34.1%) and RCB 0 (complete response) rate was 7.4% (95% CI: 1.7%-13.1%). Objective response rate by magnetic resonance imaging was 76.5% and rate of conversion to breast conserving surgery was 40.0%. The most frequent grade 3 and 4 toxicity was neutropenia (12.3% and 3.7% of patients, respectively), without any febrile neutropenia. Sensory neuropathy grade 2 and 3 were seen in 25.9% and 2.5% of patients, respectively. Tumor secreted protein, acidic, cysteine-rich (SPARC) overexpression was significantly associated with RCB 0 (odds ratio: 0.079; 95% CI: 0.009-0.689; p = .0216). CONCLUSION Despite failing to confirm an RCB III rate ≤16% in nab-Paclitaxel-treated patients, the RCB 0+I rate indicates a significant drug antitumor activity with low rates of grade 3-4 toxicity. Our exploratory biomarker analysis suggests a potential predictive role of complete response for SPARC. Confirmatory analyses are warranted, adapting dose and schedule to decrease peripheral neurotoxicity. (Trial registration: European Clinical Trials Database study number: 2011-004476-10; ClinicalTrials.gov: NCT01565499). IMPLICATIONS FOR PRACTICE The pathological response rate (residual cancer burden [RCB]; Symmans criteria) of nanoparticle albumin-bound paclitaxel administered as neoadjuvant treatment for early estrogen receptor-positive, human epidermal growth factor receptor 2-negative disease was evaluated. Whereas poor response (RCB III) was 24.7%, similar to that for docetaxel, good response (RCB 0+I) reached 23.0%, far superior to the 13% for docetaxel, while keeping toxicity low. Exploratory biomarker analysis suggests secreted protein, acidic, cysteine-rich overexpression in tumor cells as a potential predictor of complete response (RCB 0). Findings point to an encouraging single-agent neoadjuvant treatment with low toxicity, which warrants future research and development.
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Affiliation(s)
- Miguel Martín
- Oncology Department, Instituto de Investigación Sanitaria Gregorio Marañón, Universidad Complutense, Madrid, Spain
- Centro de Investigación Biomédica en Red de Oncología, CIBERONC-ISCIII, Spain, on behalf of GEICAM (Spanish Breast Cancer Group), Spain
| | - José I Chacón
- Oncology Department, Hospital Universitario Virgen de la Salud, Toledo, Spain
| | - Antonio Antón
- Oncology Department, Hospital Universitario Miguel Servet, Zaragoza, Spain
| | | | - Elena García-Martínez
- Oncology Department, Hospital General Universitario Morales Messeguer, Murcia, Spain
| | - Miguel A Seguí
- Oncology Department, Corporación Sanitaria Parc Taulí, Barcelona, Spain
| | | | - José Palacios
- Pathology Department, Hospital Universitario Ramón y Cajal, Madrid, Spain
- Centro de Investigación Biomédica en Red de Oncología, CIBERONC-ISCIII, Spain, on behalf of GEICAM (Spanish Breast Cancer Group), Spain
| | - Lourdes Calvo
- Oncology Department, Complejo Hospitalario Universitario de la Coruña, La Coruña, Spain
| | - Carmen Esteban
- Oncology Department, Hospital Universitario Virgen de la Salud, Toledo, Spain
| | - Enrique Espinosa
- Oncology Department, Hospital Universitario la Paz, Madrid, Spain
| | - Agusti Barnadas
- Medical Oncology Department, Hospital de Santa Creu i Sant Pau, Institut de Recerca IIB Sant Pau, Barcelona, Spain
- Centro de Investigación Biomédica en Red de Oncología, CIBERONC-ISCIII, Spain, on behalf of GEICAM (Spanish Breast Cancer Group), Spain
| | - Norberto Batista
- Oncology Department, Hospital Universitario de Canarias, Universidad de La Laguna, Tenerife, Spain
| | - Angel Guerrero
- Oncology Department, Instituto Valenciano de Oncología, Valencia, Spain
| | - Montserrat Muñoz
- Oncology Department, Hospital Clinic i Provincial, Barcelona, Spain
| | - Estefania Romio
- Pathology Department, Hospital Universitario Ramón y Cajal, Madrid, Spain
| | | | | | | | - Federico Rojo
- Fundación Jiménez Díaz, Madrid, Spain
- Centro de Investigación Biomédica en Red de Oncología, CIBERONC-ISCIII, Spain, on behalf of GEICAM (Spanish Breast Cancer Group), Spain
| | | | - Silvia Antolín
- Oncology Department, Complejo Hospitalario Universitario de la Coruña, La Coruña, Spain
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Lee KM, Giltnane J, Balko J, Schwarz L, Guerrero A, Hutchinson K, Hicks M, Sanchez V, Sanders M, Lee T, Olejniczak E, Fesik S, Arteaga C. Abstract 3890: Mitochondrial MCL1 maintains triple negative breast cancer stem cells and contributes to chemotherapy resistance. Cancer Res 2017. [DOI: 10.1158/1538-7445.am2017-3890] [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
Cytotoxic chemotherapy is the standard of care for patients with triple negative breast cancer (TNBC). Most patients with advanced TNBC progress after chemotherapy and die from metastatic disease. MCL1 is an anti-apoptotic Bcl-2 family member known to sequester and inactivate pro-apoptotic Bcl-2 family proteins and, thus, contribute to chemotherapy resistance. We previously reported that ~45% of residual TNBCs that remain in the breast after neoadjuvant chemotherapy harbor MCL1 amplification, suggesting a causal role for MCL1 in drug resistance. A recent report (Goodwin et al. 2015) suggested that siRNA-mediated ablation of MCL1 does not induce apoptosis in claudin-low TNBC cells with a cancer stem cell (CSC) gene expression signature. CSCs comprise a rare population of cells with tumor-initiating properties and refractoriness to chemotherapy. In this study, we showed that MCL1 expression is elevated in claudin-low TNBC SUM159PT and MDA436 CSCs as measured by ALDH+ by flow cytometry and ability to form mammospheres. RNA interference of MCL1 in SUM159PT cells reduced CSCs and attenuated tumor formation in vivo. Mitochondrial oxidative phosphorylation (mtOXPHOS) plays a crucial role in maintenance of CSCs. MCL1 has been shown to localize in the mitochondrial matrix and contribute to mitochondrial respiration. Thus, we hypothesized that MCL1 contributes to enrichment of TNBC CSCs and chemotherapy resistance via mitochondrial regulation. Stable transfection and overexpression of MCL1 in MDA468 cells increased oxygen consumption ratio, mitochondrial membrane potential, and production of reactive oxygen species (ROS), all features of activated mtOXPHOS. Conversely, RNAi-mediated ablation of MCL1 in SUM159PT and MDA436 cells repressed these markers of activated mtOXPHOS. A mutant of MCL1 lacking its mitochondrial target sequences (MTS) was unable to localize in mitochondria and, when transfected into MDA468 cells, reduced the CD44high/CD24low fraction and mammosphere formation. We next tested VU0659158, a BH3 mimetic in development at Vanderbilt that disrupts MCL1 interactions with BH3 domain-containing proteins, such as BID, BIM, NOXA and PUMA. Treatment of SUM159PT cells with VU0659158 increased caspase activity but did not attenuate mammosphere formation. Analysis of mRNA expression in TCGA revealed that genes induced by mtOXPHOS involved in the hypoxia pathway are significantly up-regulated in MCL1 amplified breast cancers. Finally, pharmacological inhibition of HIF-1α, a key regulator of hypoxia, with digoxin decreased CSCs and attenuated tumor formation in vivo. These data suggest that 1) MCL1 confers resistance to chemotherapy by expanding CSCs via mtOXPHOS independent of its BH3 domain-mediated, anti-apoptotic function, and 2) targeting mitochondrial respiration and the hypoxia pathway may delay or reverse chemotherapy resistance in MCL1 amplified TNBC.
Citation Format: Kyung-min Lee, Jennifer Giltnane, Justin Balko, Luis Schwarz, Angel Guerrero, Katie Hutchinson, Mellissa Hicks, Violeta Sanchez, Melinda Sanders, Taekyu Lee, Edward Olejniczak, Stephen Fesik, Carlos Arteaga. Mitochondrial MCL1 maintains triple negative breast cancer stem cells and contributes to chemotherapy resistance [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2017; 2017 Apr 1-5; Washington, DC. Philadelphia (PA): AACR; Cancer Res 2017;77(13 Suppl):Abstract nr 3890. doi:10.1158/1538-7445.AM2017-3890
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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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Poveda A, Oaknin A, Romero I, Guerrero A, Fariñas-Madrid L, Rodriguez-Freixinos V, Soto-Matos A, Peris C, Teruel M, Lopez-Reig R, Lopez-Guerrero JA. Phase I study to evaluate the tolerability, pharmacokinetics (PK) and pharmacodynamic (PD) of PM01183 (Lurbinectedin) in combination with olaparib in patients with advanced solid tumors. J Clin Oncol 2017. [DOI: 10.1200/jco.2017.35.15_suppl.5573] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
5573 Background: PM01183 (Lurbinectedin) is a new anticancer drug that exerts antitumor activity through inhibition of trans-activated transcription and modulation of tumor microenvironment and is highly active in platinum resistant ovarian cancer. (Poveda A et al. ASCO 2014.abstr #5505). Olaparib (AZD2281, KU-0059436) is a polyadenosine 5’diphosphoribose (poly [ADP ribose]) polymerase (PARP) inhibitor of PARP-1,-2 and-3 with proven antitumoral activity in homologous recombination deficient tumors. The combination of PM01183 and Olaparib has shown synergistic activity in cell-lines, independent of BRCA mutation status. Methods: This phase I study evaluates the safety, PK and PD of PM1183 in combination with short course of Olaparib tablet formulation [days (d) 1-5] a cycle of 21 d, through a 3+3 dose escalation design (NCT02684318) Patients with advanced or metastatic solid tumors without established standard therapeutic alternatives were selected. Primary endpoints: safety (MTD, DLT and RP2D). Secondary endpoints: PK and PD (western blot analysis of RAD51 and p-gH2AX) profiles at 0h,4.5h, 6.5h and 24h at first cycle of treatment. Results: 20 patients were enrolled from Nov 2015 to Sep 2016 (15 ovarian, 5 endometrial) to 5 dose levels. 19/20 were evaluable for toxicity. Two dose limiting toxicities (DLTs) (both grade 4 neutropenia ≥ 4 days) occurred at the highest dose level (PM01183 2 mg/m2 iv d1 + Olaparib 250 mg [BID] oral on d 1-5. Grade 3 toxicities occurred in 30% of patients, including grade 3 neutropenia (6%) and grade 3 asthenia (10%). PK data are available from 19 patients. Median of PM01183 total clearance (11.0 L/h) is the same as when PM01183 is given as single agent. Clearance of Olaparib (7 L/h) is consistent with results reported elsewhere (5.1 – 8.6 L/h). PD: An overall increase of RAD51 and p-gH2AX was observed, being particularly evident in 56% of patients. Conclusions: The Recommended Dose for Phase II (RP2D) was PM01183 1,5 mg/m2 iv d1 + Olaparib 250 mg BID on d 1-5. This combination is feasible and without evidence of drug-drug interactions. A phase-II study at RP2D is ongoing. Clinical trial information: NCT02684318.
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Affiliation(s)
- Andres Poveda
- Clinical Area of Gynecologic Oncology, Instituto Valenciano de Oncología (IVO), Valencia, Spain
| | - Ana Oaknin
- Vall d’Hebron University Hospital Institute of Oncology (VHIO), Barcelona, Spain
| | - Ignacio Romero
- Clinical Area of Gynecologic Oncology, Instituto Valenciano de Oncología (IVO), Valencia, Spain
| | | | | | | | | | | | | | - Raquel Lopez-Reig
- Laboratory Molecular Biology, Instituto Valenciano Oncologia, Valencia, Spain
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Martin M, Loibl S, Hyslop T, de la Haba-Rodriguez J, Aktas B, Cirrincione C, Carrasco EM, Mehta K, Barry WT, Morales S, Carey LA, Garcia Saenz JA, Partridge A, Martinez N, Hahn OM, Winer EP, Guerrero A, Hudis C, Casas M, Dickler MN. Evaluating the addition of bevacizumab (Bev) to endocrine therapy as first-line treatment for hormone-receptor positive (HR+)/HER2-negative advanced breast cancer (ABC): Pooled-analysis from the LEA (GEICAM/2006-11_GBG51) and CALGB 40503 (Alliance) trials. J Clin Oncol 2017. [DOI: 10.1200/jco.2017.35.15_suppl.1012] [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: 11/20/2022] Open
Abstract
1012 Background: Data from randomized trials comparing ET v ET-Bev in 1st line HR+/HER2- ABC pts showed controversial results. We performed a pooled-analysis of two randomized trials (LEA and CALGB 40503) to refine the Bev value in this patient population. Methods: We analysed 749 ABC pts with ET (letrozole-673, tamoxifen-39, fulvestrant 250mg-37) +/- Bev. Primary objective was to compare progression-free survival (PFS). Secondary endpoints were: safety; other efficacy (overall response rate [ORR], clinical benefit rate [CBR] and overall survival [OS]) in all pts; and efficacy in de novo pts and by previous endocrine-sensitivity (-/+ 24 months [mo] without recurrence under ET in adjuvant setting). Multivariable Cox models were fitted for PFS adjusted by study co-variables and controlled for study level differences. Results: Median age was 61 years (yr) (range: 25-87); 40% had de novo ABC and 60% recurrent disease (with disease free interval of ≤ 1 yr in 5%, 1-2 yr in 7% and > 2 yr in 88%); 82% of recurrent pts had previous ET sensitivity. Median PFS was 14.3 mo in the ET arm v 19 mo in the ET+Bev arm (HR 0.77; 95% CI 0.66-0.91; p<0.01). ORR and CBR with ET v ET+Bev were 40 v 61% (p<0.01) and 64 v 77% (p<0.01). OS did not differ between arms (HR 0.96; 95% CI 0.77-1.18; p=0.68). PFS for de novo ABC pts was 14.6 and 19.3 mo in the ET and ET+Bev arms (HR 0.82; 95% CI 0.63-1.06; p=0.13). PFS differed between arms for previous sensitive pts (HR 0.68; 95% CI 0.53-0.89; p=0.004) but not for ET-resistant pts (HR 0.73; 95% CI 0.4-1.3; p=0.29). Grade 3-5 hypertension (2.2 v 20.1%), proteinuria (0 v 9.3%), cardiovascular events (0.5 v 4.2%) and liver events (0 v 2.9%) were significantly higher in the ET+Bev arm (all p<0.01). Multivariable analyses showed age (p<0.01), PgR status (p<0.01), type of prior ET (p<0.01) and treatment arm (p<0.01) to be associated with PFS. Conclusions: The addition of Bev to ET increased PFS but not OS. Analyses to define subgroups with prolonged benefit from ET alone or ET-Bev are ongoing. Support: U10CA180821, U10CA180882, Breast Cancer Research Foundation, Genentech, Roche. Clinical trial information: NCT00545077 / NCT00601900.
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Affiliation(s)
- Miguel Martin
- Hospital Gregorio Maranon, Universidad Complutense., Madrid, Spain
| | | | - Terry Hyslop
- Department of Biostatistics and Bioinformatics, Duke Cancer Institute, Durham, NC
| | - Juan de la Haba-Rodriguez
- University Hospital Reina Sofia, Biomedical Research Institute Maimonides. GEICAM, Spanish Breast Cancer Group, Cordoba, Spain
| | | | | | | | - Keyur Mehta
- German Breast Group (GBG), Neu-Isenburg, Germany
| | | | | | | | | | - Ann Partridge
- Dana-Farber Cancer Institute/Harvard Medical School, Boston, MA
| | | | | | | | - Angel Guerrero
- Medical Oncology, Instituto Valenciano de Oncología, Valencia, Spain
| | - Cliff Hudis
- American Society of Clinical Oncology, Alexandria, VA
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Albanell J, Gonzalez A, Gonzalez-Angulo AM, Eterovic AK, Martinez-De Duenas E, Zheng X, Guerrero A, Liu S, Pérez-Carrión R, Chen K, Chacon JI, Mills GB, Antolín Novoa S, Blancas I, Sanchez-Arago M, Carrasco EM, Caballero R, Rojo F, Meric-Bernstam F, Lluch Hernandez A. Genomic alterations driving breast cancer (BC) metastases and their relationship with the subtype switch in the GEICAM ConvertHER study. J Clin Oncol 2017. [DOI: 10.1200/jco.2017.35.15_suppl.1017] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
1017 Background: To understand the mechanisms underlying the evolution of tumors in the process of metastasis, we studied 61 paired primary-relapse BC from the GEICAM ConvertHER study. While some of the metastases maintained the clinical (ER/PR and HER2 status) and/or intrinsic subtype (defined by expression arrays) of the original tumor (concordant), others exhibited a subtype shift (discordant). We aimed to identify the genomic alterations driving the metastases and, particularly, their relationship with the subtype switch. Methods: We detected the somatic variants (mutations and copy number alterations (CNAs)) affecting 202 genes across the 61 sample pairs via targeted sequencing. We employed the Cancer Genome Interpreter (cancergenomeinterpreter.org), a bioinformatics approach to identify the alterations most likely driving tumorigenesis, and subsequently identified those whose cancer cell fraction markedly changed in the metastases. We explored the clonal remodeling in metastasis comparing the cell fractions of driver mutations in both concordant and discordant tumors. Results: We found that 156 genes had 747 somatic mutations and 171 genes suffered 1042 somatic CNAs in the 61 studied tumor pairs. We identified a median of 11 and 9 mutations in primaries and metastases, respectively. Several frequent BC mutational drivers, such as TP53, PIK3CA, MLL3, MAP3K1, and NOTCH2 were amongst the more frequently changed their cancer cell fraction in metastases with respect to primaries. We found that driver mutations of discordant tumors exhibited a significantly higher increase of clonal cell fraction. Moreover, whether the clonal status of a driver mutation was conserved in the metastasis was significantly associated to whether the tumor maintains its clinical subtype but not its intrinsic subtype. Conclusions: Our results suggest that a shift in the clinical subtype of BC undergoing metastasis is accompanied by more significant changes at the genomic level than those suffered by tumors that maintain their clinical subtype. This remodeling of the landscape of drivers could open new therapeutic opportunities to specifically target discordant BC.
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Affiliation(s)
- Joan Albanell
- Medical Oncology, Hospital del Mar, Barcelona, Spain
| | | | | | | | | | | | | | - Shuying Liu
- The University of Texas MD Anderson Cancer Center, Houston, TX
| | | | - Ken Chen
- The University of Texas MD Anderson Cancer Center, Houston, TX
| | | | - Gordon B. Mills
- The University of Texas MD Anderson Cancer Center, Houston, TX
| | | | | | | | | | | | - Federico Rojo
- University Hospital Fundación Jiménez Díaz, Spanish Breast Cancer Group GEICAM, Madrid, Spain
| | - Funda Meric-Bernstam
- Department of Investigational Cancer Therapeutics (Phase I Program), The University of Texas MD Anderson Cancer Center, Houston, TX
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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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