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Chiappin M, Leguelinel-Blache G, Roux-Marson C, Kinowski JM, Dubois F. Impact of a clinical pharmacist's intervention on pneumococcal vaccination in a population of at- risk hospitalized patients: The IP-VAC study. Infect Dis Now 2023; 53:104765. [PMID: 37499757 DOI: 10.1016/j.idnow.2023.104765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 07/07/2023] [Accepted: 07/18/2023] [Indexed: 07/29/2023]
Abstract
OBJECTIVES The aim of this study was to evaluate the impact of clinical pharmacist intervention on compliance with pneumococcal vaccination (PV) recommendations in hospitalized patients. METHODS This was a prospective, single-center, before-and-after study conducted in 2019-2020. Patients had to be over 18 years of age, at risk of pneumococcal infection, and with no PV. No changes were made in the observational phase. During the interventional phase, the clinical pharmacist discussed a prescription for preventive PV and a mention in the discharge letter. A pharmaceutical consultation sensitized the patient to the interest of PV. The clinical pharmacist ensured that a complete vaccination protocol would be carried out by the retail pharmacist within 3 months of hospitalization. RESULTS One hundred and sixty-seven (167) patients were included. In the observational phase, 2.3% of patients received a complete vaccination protocol after discharge from primary care. The rate increased to 63.8% after the clinical pharmacist's intervention (p < 0.001). Vaccines were prescribed by hospital physicians in 97.5% of cases, while 40% of discharge letters included the indication for PV. CONCLUSION The clinical pharmacist's intervention led to delivery of a complete PV protocol after discharge for over half the patients. This study demonstrated the feasibility of a pharmaceutical intervention to promote PV in hospital activities.
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Affiliation(s)
- M Chiappin
- Département de pharmacie, CHU Nîmes, Université de Montpellier, Nîmes, France.
| | - G Leguelinel-Blache
- Département de pharmacie, CHU Nîmes, Université de Montpellier, Nîmes, France; Institut Desbrest d'Épidémiologie et de Santé Publique, Univ Montpellier, INSERM, Montpellier, France; Département de Droit et Économie de la santé, Université de Montpellier, Montpellier, France
| | - C Roux-Marson
- Département de pharmacie, CHU Nîmes, Université de Montpellier, Nîmes, France; Institut Desbrest d'Épidémiologie et de Santé Publique, Univ Montpellier, INSERM, Montpellier, France
| | - J-M Kinowski
- Département de pharmacie, CHU Nîmes, Université de Montpellier, Nîmes, France; Institut Desbrest d'Épidémiologie et de Santé Publique, Univ Montpellier, INSERM, Montpellier, France
| | - F Dubois
- Département de pharmacie, CHU Nîmes, Université de Montpellier, Nîmes, France; Institut Desbrest d'Épidémiologie et de Santé Publique, Univ Montpellier, INSERM, Montpellier, France
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Dubois F. Skill trade-offs promote persistent individual differences and specialized tactics. Ecol Evol 2023; 13:e10578. [PMID: 37809359 PMCID: PMC10550786 DOI: 10.1002/ece3.10578] [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] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 09/19/2023] [Accepted: 09/19/2023] [Indexed: 10/10/2023] Open
Abstract
Individuals generally differ in their ability to perform challenging behaviours, but the causes of such variability remain incompletely understood. Because animals can usually use different behavioural tactics to achieve their goals, we might expect individual differences in skill to be maintained when the available tactics require different abilities to perform well. To explore this idea, I used the producer-scrounger (PS) paradigm, which considers interactions between foragers that may either invest effort in searching for resources (i.e. produce) or exploit others' discoveries (i.e. scrounge). Specifically, I tested whether individual differences in cognitive traits (i.e. the ability to find food) might result from a trade-off with competitiveness (i.e. the ability to steal food) that would exert disruptive selection pressure and, as such, might explain the coexistence of condition-dependent foraging tactics. If individuals differ in their competitiveness, with strong contestants being better able to monopolize food resources (and hence to scrounge), the model predicts that strong and weak competitors should rely more on scrounging and producing, respectively, especially when the finder's advantage is low. These findings indicate that the existence of individual differences in competitive abilities may be sufficient to explain short-term individual foraging tactic specialization. Yet, the degree of behavioural specialization is expected to depend on both the social and ecological context. Furthermore, persistent phenotypic differences, that are necessary for stable individual specialization, require the existence of a trade-off between competitive abilities that enable greater success as scroungers and cognitive abilities that are associated with better efficiency to detect and/or capture prey and, as such, enable greater success as producers. Therefore, this study further highlights the importance of considering the existence of alternative tactics to measure and predict the evolution of traits, including cognitive traits, within populations.
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Affiliation(s)
- Frédérique Dubois
- Département de Sciences BiologiquesUniversité de MontréalMontrealQuebecCanada
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SRIVASTAVA S, O’Brien M, Cheema P, Grohe C, Carcereny E, Girard N, Chiappori A, Ross S, Rossetti M, Dubois F, Lager J, Velcheti V. EP08.01-021 Phase 2 Study Evaluating Inupadenant in Combination with Chemotherapy in Adults with NSCLC who Progressed on Immunotherapy. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.593] [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: 11/26/2022]
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Abstract
Within the same population, proactive (i.e. bolder, more exploratory, active and aggressive) and reactive (i.e. more timid, less exploratory, less active and more passive) individuals could be hypothetically maintained due a trade-off between foraging and vigilance behaviours, provided that both phenotypes differ in their state (e.g. metabolic rates, body condition or energetic needs). Yet, recent findings indicate that among-individual variation in intrinsic state can explain only a small proportion of variation in behaviour, meaning that other mechanisms, such as the presence of trophically transmitted parasites, might contribute to maintaining inter-individual behavioural differences. Empirical evidence, indeed, suggests strong relationships between certain animal personality traits and parasitic load within host populations. However, the direction of causation between these traits remains unclear: are different behaviours in infected hosts in contrast to uninfected ones the result of manipulation by parasites to increase host predation, or are some personalities inherently more susceptible to infection than others? To better understand the role of parasites in shaping behavioural differences within host populations and examine to what extent parasite manipulation and/or intrinsic differences in parasite susceptibility contribute to maintaining behavioural differences, we used a simulation approach and analyzed the change in the frequencies of proactive and reactive individuals over time under different predation and starvation scenarios, when individual phenotype either affected a host's risk of infection or not. We found that in the absence of parasites, predation pressure strongly affected the expression of host personality, but the trade-off between foraging and vigilance behaviours alone could not explain the maintenance of inter-individual behavioural differences without temporal variation in predation pressure. By contrast, in the presence of parasites, the two host phenotypes could coexist within populations even when individuals experienced no temporal variations in predation risk, but only when proactive and reactive hosts were equally susceptible to parasitism. Our findings thus indicate that parasites can play an important role in maintaining genetic diversity in their host populations in addition to generating behavioural differences though manipulation.
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Affiliation(s)
| | - Sandra A Binning
- Département de sciences biologiques, Université de Montréal, Canada
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5
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Barou‐Dagues M, Dubois F. Exploring the interplay between natural and intersexual selection on the evolution of a cognitive trait. Ecol Evol 2022; 12:e9066. [PMID: 35813909 PMCID: PMC9251863 DOI: 10.1002/ece3.9066] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 05/25/2022] [Accepted: 06/08/2022] [Indexed: 01/02/2023] Open
Affiliation(s)
| | - Frédérique Dubois
- Département des Sciences Biologiques Université de Montréal Montréal Quebec Canada
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Peyronnet B, Cornu JN, Belas O, Capon G, Biardeau X, Lecoanet P, Castro-Sader L, Borojeni S, Hein R, Hascoet J, Thibault F, Dubois F, Cardot V, Vidart A, Descazeaud A, Fournier G, Van Der Aa F. Robot-assisted artificial urinary sphincter implantation in female patients: An international multicenter series of 182 patients. Eur Urol 2022. [DOI: 10.1016/s0302-2838(22)00658-3] [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: 11/04/2022]
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Dubois F, R. Peres-Neto P. Games researchers play: conceptual advancement versus validation strategies. Trends Ecol Evol 2022; 37:399-401. [DOI: 10.1016/j.tree.2022.02.003] [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] [Received: 11/02/2021] [Revised: 01/31/2022] [Accepted: 02/02/2022] [Indexed: 11/15/2022]
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Dubois F, Pelou B, Meunier P. Intérêt de la cardiofréquencemétrie et de l’analyse ergonomique des chauffeurs-livreurs de farine pour l’évaluation et la validation objective de la réduction de la pénibilité du métier à l’issue d’un suivi de 10 ans. ARCH MAL PROF ENVIRO 2021. [DOI: 10.1016/j.admp.2020.12.001] [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: 11/26/2022]
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Peyronnet B, Capon G, Belas O, Biardeau X, Lecoanet P, Castro-Sader L, Allue M, Hein R, Daher M, Hascoet J, Auble A, Thibault F, Cornu J, Dubois F, Gamé X, Cardot V, Vidart A, Descazeaud A, Fournier G, Van Der Aa F. Implantation robot-assistée du sphincter artificiel urinaire AMS-800 chez la femme : une série multicentrique internationale de 125 patientes. Prog Urol 2020. [DOI: 10.1016/j.purol.2020.07.104] [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: 10/23/2022]
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Bah MG, Rodriguez D, Cazeneuve C, Mochel F, Devos D, Suppiej A, Roubertie A, Meunier I, Gitiaux C, Curie A, Klapczynski F, Allani‐Essid N, Carneiro M, Van Minkelen R, Kievit A, Fluss J, Leheup B, Ratbi L, Héron D, Gras D, Do Cao J, Pichard S, Strubi‐Villaume I, Audo I, Lesca G, Charles P, Dubois F, Comet‐Didierjean P, Capri Y, Barondiot C, Barathon M, Ewenczyk C, Durr A, Mignot C. Deciphering the natural history of SCA7 in children. Eur J Neurol 2020; 27:2267-2276. [DOI: 10.1111/ene.14405] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Accepted: 06/10/2020] [Indexed: 11/30/2022]
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11
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Peyronnet B, Capon G, Biardeau X, Belas O, Lecoanet P, Castro-Sader L, Allue M, Hein R, Daher M, Manunta A, Robert G, Hascoet J, Dubois F, Thibault F, Cardot V, Vidart A, Descazeaud A, Fournier G, Everaerts W, Van Der Aa F. Robot-assisted artificial urinary sphincter implantation in female patients: An international multicenter study. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)32974-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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12
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Jaimes C, Vajapeyam S, Brown D, Kao PC, Ma C, Greenspan L, Gupta N, Goumnerova L, Bandopahayay P, Dubois F, Greenwald NF, Zack T, Shapira O, Beroukhim R, Ligon KL, Chi S, Kieran MW, Wright KD, Poussaint TY. MR Imaging Correlates for Molecular and Mutational Analyses in Children with Diffuse Intrinsic Pontine Glioma. AJNR Am J Neuroradiol 2020; 41:874-881. [PMID: 32381545 DOI: 10.3174/ajnr.a6546] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Accepted: 03/16/2020] [Indexed: 01/13/2023]
Abstract
BACKGROUND AND PURPOSE Recent advances in molecular techniques have characterized distinct subtypes of diffuse intrinsic pontine gliomas. Our aim was the identification of MR imaging correlates of these subtypes. MATERIALS AND METHODS Initial MRIs from subjects with diffuse intrinsic pontine gliomas recruited for a prospective clinical trial before treatment were analyzed. Retrospective imaging analyses included FLAIR/T2 tumor volume, tumor volume enhancing, the presence of cyst and/or necrosis, median, mean, mode, skewness, kurtosis of ADC tumor volume based on FLAIR, and enhancement at baseline. Molecular subgroups based on EGFR and MGMT mutations were established. Histone mutations were also determined (H3F3A, HIST1H3B, HIST1H3C). Univariate Cox proportional hazards regression was used to test the association of imaging predictors with overall and progression-free survival. Wilcoxon rank sum, Kruskal-Wallis, and Fisher exact tests were used to compare imaging measures among groups. RESULTS Fifty patients had biopsy and MR imaging. The median age at trial registration was 6 years (range, 3.3-17.5 years); 52% were female. On the basis of immunohistochemical results, 48 patients were assigned to 1 of 4 subgroups: 28 in MGMT-/epidermal growth factor receptor (EGFR)-, 14 in MGMT-/EGFR+, 3 in MGMT+/EGFR-, and 3 in MGMT+/EGFR+. Twenty-three patients had histone mutations in H3F3A, 8 in HIST1H3B, and 3 in HIST1H3C. Enhancing tumor volume was near-significantly different across molecular subgroups (P = .04), after accounting for the false discovery rate. Tumor volume enhancing, median, mode, skewness, and kurtosis ADC T2-FLAIR/T2 were significantly different (P ≤ .048) between patients with H3F3A and HIST1H3B/C mutations. CONCLUSIONS MR imaging features including enhancement and ADC histogram parameters are correlated with molecular subgroups and mutations in children with diffuse intrinsic pontine gliomas.
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Affiliation(s)
- C Jaimes
- From the Departments of Radiology (C.J., S.V., T.Y.P.).,Fetal-Neonatal Neuroimaging and Developmental Science Center (C.J.), Division of Newborn Medicine; Boston Children's Hospital, Boston, Massachusetts.,Harvard Medical School (C.J., S.V., C.M., P.B., F.D., R.B., K.L.L., S.C., K.D.W., T.Y.P.), Boston, Massachusetts
| | - S Vajapeyam
- From the Departments of Radiology (C.J., S.V., T.Y.P.).,Harvard Medical School (C.J., S.V., C.M., P.B., F.D., R.B., K.L.L., S.C., K.D.W., T.Y.P.), Boston, Massachusetts
| | - D Brown
- Tumor Imaging Metrics Core (D.B.), Massachusetts General Hospital, Boston, Massachusetts
| | - P-C Kao
- Pediatrics, Division of Oncology (P.-C.K., C.M., L.G., P.B., R.B., S.C., K.D.W.).,Dana Farber Cancer Institute (P.-C.K., C.M., L.G., P.B., F.D., O.S., R.B., K.L.L., S.C., K.D.W.), Boston, Massachusetts
| | - C Ma
- Pediatrics, Division of Oncology (P.-C.K., C.M., L.G., P.B., R.B., S.C., K.D.W.).,Dana Farber Cancer Institute (P.-C.K., C.M., L.G., P.B., F.D., O.S., R.B., K.L.L., S.C., K.D.W.), Boston, Massachusetts.,Harvard Medical School (C.J., S.V., C.M., P.B., F.D., R.B., K.L.L., S.C., K.D.W., T.Y.P.), Boston, Massachusetts
| | - L Greenspan
- Pediatrics, Division of Oncology (P.-C.K., C.M., L.G., P.B., R.B., S.C., K.D.W.).,Dana Farber Cancer Institute (P.-C.K., C.M., L.G., P.B., F.D., O.S., R.B., K.L.L., S.C., K.D.W.), Boston, Massachusetts
| | - N Gupta
- Department of Pediatric Neurosurgery (N.G.), University of California San Francisco Benioff Children's Hospital, San Francisco, California.,University of California San Francisco School of Medicine (N.G., T.Z.), San Francisco, California
| | | | - P Bandopahayay
- Pediatrics, Division of Oncology (P.-C.K., C.M., L.G., P.B., R.B., S.C., K.D.W.).,Dana Farber Cancer Institute (P.-C.K., C.M., L.G., P.B., F.D., O.S., R.B., K.L.L., S.C., K.D.W.), Boston, Massachusetts.,Harvard Medical School (C.J., S.V., C.M., P.B., F.D., R.B., K.L.L., S.C., K.D.W., T.Y.P.), Boston, Massachusetts
| | - F Dubois
- Dana Farber Cancer Institute (P.-C.K., C.M., L.G., P.B., F.D., O.S., R.B., K.L.L., S.C., K.D.W.), Boston, Massachusetts.,Harvard Medical School (C.J., S.V., C.M., P.B., F.D., R.B., K.L.L., S.C., K.D.W., T.Y.P.), Boston, Massachusetts
| | - N F Greenwald
- Stanford University School of Medicine (N.F.G.), Palo Alto, California
| | - T Zack
- University of California San Francisco School of Medicine (N.G., T.Z.), San Francisco, California
| | - O Shapira
- Dana Farber Cancer Institute (P.-C.K., C.M., L.G., P.B., F.D., O.S., R.B., K.L.L., S.C., K.D.W.), Boston, Massachusetts.,Broad Institute of Massachusetts Institute of Technology and Harvard University (O.S.), Cambridge, Massachusetts
| | - R Beroukhim
- Pediatrics, Division of Oncology (P.-C.K., C.M., L.G., P.B., R.B., S.C., K.D.W.).,Dana Farber Cancer Institute (P.-C.K., C.M., L.G., P.B., F.D., O.S., R.B., K.L.L., S.C., K.D.W.), Boston, Massachusetts.,Harvard Medical School (C.J., S.V., C.M., P.B., F.D., R.B., K.L.L., S.C., K.D.W., T.Y.P.), Boston, Massachusetts
| | - K L Ligon
- Dana Farber Cancer Institute (P.-C.K., C.M., L.G., P.B., F.D., O.S., R.B., K.L.L., S.C., K.D.W.), Boston, Massachusetts.,Department of Pathology (K.L.L.), Brigham and Women's Hospital, Boston, Massachusetts.,Harvard Medical School (C.J., S.V., C.M., P.B., F.D., R.B., K.L.L., S.C., K.D.W., T.Y.P.), Boston, Massachusetts
| | - S Chi
- Pediatrics, Division of Oncology (P.-C.K., C.M., L.G., P.B., R.B., S.C., K.D.W.).,Dana Farber Cancer Institute (P.-C.K., C.M., L.G., P.B., F.D., O.S., R.B., K.L.L., S.C., K.D.W.), Boston, Massachusetts.,Harvard Medical School (C.J., S.V., C.M., P.B., F.D., R.B., K.L.L., S.C., K.D.W., T.Y.P.), Boston, Massachusetts
| | - M W Kieran
- Clinical Trials Division (M.W.K.), Bristol-Myers-Squibb, New York, New York
| | - K D Wright
- Pediatrics, Division of Oncology (P.-C.K., C.M., L.G., P.B., R.B., S.C., K.D.W.).,Dana Farber Cancer Institute (P.-C.K., C.M., L.G., P.B., F.D., O.S., R.B., K.L.L., S.C., K.D.W.), Boston, Massachusetts.,Harvard Medical School (C.J., S.V., C.M., P.B., F.D., R.B., K.L.L., S.C., K.D.W., T.Y.P.), Boston, Massachusetts
| | - T Y Poussaint
- From the Departments of Radiology (C.J., S.V., T.Y.P.) .,Harvard Medical School (C.J., S.V., C.M., P.B., F.D., R.B., K.L.L., S.C., K.D.W., T.Y.P.), Boston, Massachusetts
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Dubois F, Richard‐Dionne É. Consequences of multiple simultaneous opportunities to exploit others' efforts on free riding. Ecol Evol 2020; 10:4343-4351. [PMID: 32489601 PMCID: PMC7246214 DOI: 10.1002/ece3.6201] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 02/18/2020] [Accepted: 02/25/2020] [Indexed: 11/25/2022] Open
Abstract
Individuals within a group do not all act in the same way: Typically, the investors (or producers) put efforts into producing resources while the free riders (or scroungers) benefit from these resources without contributing. In behavioral ecology, the prevalence of free riders can be predicted by a well-known game-theoretical model-the producer-scrounger (PS) model-where group members have the options to either search for resources (producers) or exploit the efforts of others (scroungers). The PS model has received some empirical support, but its predictions, surprisingly, are based on the strict assumption that only one resource can be exploited at a time. Yet, multiple simultaneous opportunities to exploit others' efforts should frequently occur in nature. Here, we combine analytic and simulation approaches to explore the effect of multiple simultaneous scrounging opportunities on tactic use. Our analyses demonstrate that scrounging rates should increase with the number of simultaneous opportunities. As such, the amount and spatial distribution (i.e., clumped vs. dispersed) of resources as well as the risk of predation are key predictors of scrounging behavior. Because scroungers contribute to reducing the speed of resource exploitation, the model proposed here has direct relevance to the exploitation and sustainability of renewable resources.
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Affiliation(s)
- Frédérique Dubois
- Department of Biological SciencesUniversity of MontrealMontrealQuebecCanada
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Gibelli J, Aubin-Horth N, Dubois F. Individual differences in anxiety are related to differences in learning performance and cognitive style. Anim Behav 2019. [DOI: 10.1016/j.anbehav.2019.09.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Lajaunie R, Kraiem H, Lucarelli A, Dubois F, Rasouly N, Walter G, About V, Djossou F, Epelboin L. [Risk of Infection Following Implant of Artificial Penile Nodule, Bouglous or Dominos: A Case Report in French Guiana]. ACTA ACUST UNITED AC 2019; 112:114-118. [PMID: 31478616 DOI: 10.3166/bspe-2019-0082] [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: 03/12/2019] [Accepted: 06/18/2019] [Indexed: 11/20/2022]
Abstract
Implant of artificial penile nodule (APN) is a socio-cultural practice, linked to penitentiary environment in French Guiana. Physicians are often unfamiliar with its existence. Although serious complications remain low regarding the high prevalence of this practice, urgent cares could be required. Indeed, implant of nodule can have functional sequelae, and sometimes life-threatening consequences, especially if infection occurs and spreads. We have reported the case of a 23-year-old male who presented an infection of the penis after the implant of two APN. Removal of the nodules associated with oral antibiotics was needed. We also present CT-scan images of another patient, as an example of fortuitous discovery of these nodules. We finally discuss the various complications already described in literature.
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Affiliation(s)
- R Lajaunie
- Unité des maladies infectieuses et tropicales, centre hospitalier Andrée-Rosemon (CHAR), F-97300 Cayenne, Guyane française, France
| | - H Kraiem
- Service d'accueil des urgences, CHAR, F-97300 Cayenne, Guyane française, France
| | - A Lucarelli
- Hôpital de jour adultes, CHAR, F-97300 Cayenne, Guyane française, France
| | - F Dubois
- Unité des maladies infectieuses et tropicales, centre hospitalier Andrée-Rosemon (CHAR), F-97300 Cayenne, Guyane française, France
| | - N Rasouly
- Service de radiologie, CHAR, F-97300 Cayenne, Guyane française, France
| | - G Walter
- Unité des maladies infectieuses et tropicales, centre hospitalier Andrée-Rosemon (CHAR), F-97300 Cayenne, Guyane française, France
| | - V About
- Service d'accueil des urgences, CHAR, F-97300 Cayenne, Guyane française, France.,Unité carcérale de soins ambulatoires, centre pénitentiaire de Remire-Montjoly, F-97354 Remire-Montjoly, Guyane française, France
| | - F Djossou
- Unité des maladies infectieuses et tropicales, centre hospitalier Andrée-Rosemon (CHAR), F-97300 Cayenne, Guyane française, France.,Équipe EA 3593, Écosystèmes amazoniens et pathologie tropicale, université de la Guyane, F-97300 Cayenne, Guyane française, France
| | - L Epelboin
- Unité des maladies infectieuses et tropicales, centre hospitalier Andrée-Rosemon (CHAR), F-97300 Cayenne, Guyane française, France.,Équipe EA 3593, Écosystèmes amazoniens et pathologie tropicale, université de la Guyane, F-97300 Cayenne, Guyane française, France
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Abstract
Individuals from the same population typically show consistent differences in behavioural traits that are frequently associated with differences in contextual plasticity. Yet such a correlation might arise either because some individuals are better able than others to detect environmental changes or because the benefits of being plastic are condition-dependent. To discriminate between these two competing hypotheses, I developed an individual-based model that simulates a population in which individuals of varying fighting ability compete by pairwise interactions using either the fixed hawk (aggressive) or dove (peaceful) strategies or a conditional assessment strategy. As anticipated, the model predicts that only individuals with low (and/or intermediate) fighting ability should use the assessment strategy, giving rise to a negative (or dome-shaped) relationship between aggressiveness and plasticity. The proportion of plastic individuals, however, should be affected not only by the environmental conditions in which individuals live but also by the mechanism that would maintain variation in the traits that determine the benefits of plasticity. In particular, if individual differences in fighting ability may be eroded by natural selection, it predicts that ecological conditions that cause assortative interactions (e.g. high predation risks) would contribute in maintaining variation among individuals in their fighting ability, thereby favouring greater plasticity.
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Affiliation(s)
- Frédérique Dubois
- Département des sciences biologiques, Université de Montréal, Montréal, Canada
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Campone M, Bachelot T, Penault-Llorca F, Pallis A, Agrapart V, Pierrat MJ, Poirot C, Dubois F, Xuereb L, Bossard CJ, Guigal-Stephan N, Lockhart B, Andre F. A phase Ib dose allocation study of oral administration of lucitanib given in combination with fulvestrant in patients with estrogen receptor-positive and FGFR1-amplified or non-amplified metastatic breast cancer. Cancer Chemother Pharmacol 2019; 83:743-753. [DOI: 10.1007/s00280-018-03765-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Accepted: 12/27/2018] [Indexed: 11/25/2022]
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Villaret J, Marti G, Dubois F, Reybier K, Gaudre N, Haddad M, Valentin A. Adaptation of a microbead assay for the easy evaluation of traditional anti-sickling medicines: application to DREPANOSTAT and FACA. Pharm Biol 2018; 56:385-392. [PMID: 30261794 PMCID: PMC6161593 DOI: 10.1080/13880209.2018.1501585] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
CONTEXT Sickle cell disease is a common inherited blood disorder affecting millions of people worldwide. Due to lack of progress in drug discovery for a suitable treatment, sufferers often turn to traditional medicines that take advantage of the plant extracts activity used by traditional healers. OBJECTIVE This study optimizes an anti-sickling screening test to identify preparations capable of reverting sickle cells back to the morphology of normal red blood cells. We focused on the miniaturization and practicability of the assay, so that it can be adapted to the laboratory conditions commonly found in less developed countries. MATERIALS AND METHODS We tested two traditional anti-sickling herbal medicines, FACA® and DREPANOSTAT®, composed of Zanthoxylum zanthoxyloides (Lam.) Zepern. & Timler (Rutaceae) and Calotropis procera (Aiton) Dryand. (Apocynaceae) at screening concentrations of hydroethanol extracts from 0.2 to 1 mg/mL. Potential bioactive molecules present in the extracts were profiled using Ultra High Performance Liquid Chromatography coupled with High Resolution Mass Spectrometry (UHPLC-HRMS/MS) method, identified through HRMS, MS/MS spectra and in silico fragmentation tools. RESULTS Hydroethanol extracts of FACA® and DREPANOSTAT® showed low anti-sickling activity, inhibiting less than 10% of the sickling process. The UHPLC-HRMS/MS profiles identified 28 compounds (18 in FACA® and 15 in DREPANOSTAT®, including common compounds) among which l-phenylalanine is already described as potential anti-sickling agent. When used as positive control, 7 mg/mL phenylalanine reduced the sickled RBC to 52%. DISCUSSION AND CONCLUSIONS This assay has been optimized for the easy screening of plant extracts or extracted compounds from bioassay guided fractionation, valuable to laboratories from less developed countries.
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Affiliation(s)
- Joran Villaret
- Pharma-Dev, UMR 152, Université de Toulouse, IRD, UPS, Toulouse, France
| | - Guillaume Marti
- Pharma-Dev, UMR 152, Université de Toulouse, IRD, UPS, Toulouse, France
| | - Frédérique Dubois
- Service Hématologie, Pôle Biologie, Institut Universitaire du Cancer de Toulouse – Oncopole, Toulouse, France
| | - Karine Reybier
- Pharma-Dev, UMR 152, Université de Toulouse, IRD, UPS, Toulouse, France
| | - Noémie Gaudre
- Service Médecine Vasculaire, Pôle Cardiovasculaire et Métabolique, Hôpital Rangueil, Toulouse, France
| | - Mohamed Haddad
- Pharma-Dev, UMR 152, Université de Toulouse, IRD, UPS, Toulouse, France
- Mohamed Haddad Pharma-Dev, UMR 152, Université de Toulouse, IRD, UPS, Toulouse, France
| | - Alexis Valentin
- Pharma-Dev, UMR 152, Université de Toulouse, IRD, UPS, Toulouse, France
- CONTACT Alexis Valentin
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Le Rhun E, Devos P, Houillier C, Cartalat-Carel S, Chinot O, Di Stefano A, Reyns N, Dubois F, Weller M. P01.041 Secondary prophylaxis with romiplostim for temozolomide-induced thrombocytopenia in newly diagnosed glioblastoma. Neuro Oncol 2018. [DOI: 10.1093/neuonc/noy139.083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- E Le Rhun
- University Hospital and University of Lille, Lille, France
| | - P Devos
- University Hospital and University of Lille, Lille, France
| | | | | | - O Chinot
- University Hospital and University of Marseille, Marseille, France
| | | | - N Reyns
- University Hospital and University of Lille, Lille, France
| | - F Dubois
- University Hospital and University of Lille, Lille, France
| | - M Weller
- University Hospital and University of Zurich, Zurich, Switzerland
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Gibelli J, Aubin-Horth N, Dubois F. Are some individuals generally more behaviorally plastic than others? An experiment with sailfin mollies. PeerJ 2018; 6:e5454. [PMID: 30123722 PMCID: PMC6086093 DOI: 10.7717/peerj.5454] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Accepted: 07/26/2018] [Indexed: 11/20/2022] Open
Abstract
Individuals within the same population generally differ among each other not only in their behavioral traits but also in their level of behavioral plasticity (i.e., in their propensity to modify their behavior in response to changing conditions). If the proximate factors underlying individual differences in behavioral plasticity were the same for any measure of plasticity, as commonly assumed, one would expect plasticity to be repeatable across behaviors and contexts. However, this assumption remains largely untested. Here, we conducted an experiment with sailfin mollies (Poecilia latipinna) whose behavioral plasticity was estimated both as the change in their personality traits or mating behavior across a social gradient and using their performance on a reversal-learning task. We found that the correlations between pairwise measures of plasticity were weak and non-significant, thus indicating that the most plastic individuals were not the same in all the tests. This finding might arise because either individuals adjust the magnitude of their behavioral responses depending on the benefits of plasticity, and/or individuals expressing high behavioral plasticity in one context are limited by neural and/or physiological constraints in the amount of plasticity they can express in other contexts. Because the repeatability of behavioral plasticity may have important evolutionary consequences, additional studies are needed to assess the importance of trade-offs between conflicting selection pressures on the maintenance of intra-individual variation in behavioral plasticity.
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Affiliation(s)
- Julie Gibelli
- Département de Sciences Biologiques, Université de Montréal, Montréal, QC, Canada
| | - Nadia Aubin-Horth
- Département de Biologie et Institut de Biologie Intégrative et des Systèmes (IBIS), Université Laval, Québec, QC, Canada
| | - Frédérique Dubois
- Département de Sciences Biologiques, Université de Montréal, Montréal, QC, Canada
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Campone M, Bachelot T, Penault-Llorca F, Pallis A, Agrapart V, Pierrat MJ, Poirot C, Paux G, Dubois F, Xuereb L, Robert R, Andre F. Abstract P1-09-11: A phase Ib study of oral administration of lucitanib in combination with fulvestrant in patients with HR+ metastatic breast cancer (mBC). Cancer Res 2018. [DOI: 10.1158/1538-7445.sabcs17-p1-09-11] [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
FGFR1 amplification could mediate resistance to endocrine therapy and FGFR1 inhibition reverses this resistance. This phase Ib seeks to evaluate whether the combination of lucitanib, a potent FGFR/VEGFR/PDFGR inhibitor, in combination with fulvestrant, an endocrine agent, reverses resistance to fulvestrant.
Eligible patients for this study were postmenopausal with ER+/HER2- mBC and have relapsed during or after treatment with fulvestrant. There were 2 parts in the study: a dose allocation to assess the tolerability of the combination in terms of DLTs and MTD using a modified Continual Reassessment Method (mCRM) [part I] and a dose expansion, with patients assigned to 2 different cohorts based on FGFR amplification, to further evaluate the tolerability of the combination and to identify the recommended phase II dose (RP2D) [part II]. Surrogate target hitting biomarkers were also dosed at baseline and on-treatment. The sponsor decided to halt the clinical development in mBC indication and the study was prematurely terminated after 18 patients (15 in part I and 3 in part II). The presentation will focus on these 18 patients.
Patients had ECOG PS 0 or 1 and median number of previous treatments in metastatic setting was 3. Two doses of lucitanib (10mg daily n=9 and 12.5mg daily n=6) in combination with 500 mg/month of fulvestrant were tested in part I. At the 10mg dose level, one patient experienced a DLT (grade 3 hypertension). Based on global lucitanib development program data, it was decided to start Part II with lucitanib 10mg daily. The most common related grade ≥3 toxicities occurring in more than 10% of patients were hypertension (78%) and asthenia (22%). All patients required at least one dose interruption mainly for toxicities, while 13 patients (72%) required at least a dose reduction for toxicities. Thirteen patients (72%) withdrew from the study for disease progression, 3 (17%) for adverse events (at 10mg) and 2 (11%) for non-medical reasons. Three patients achieved a confirmed partial response (as per RECIST v1.1), one at 10mg and two at 12.5mg. About 55% of the patients experienced clinical benefit with a median duration of the benefit of 39.6 weeks and a maximun duration of the benefit of 79.1 weeks for 1 patient (PR at Cycle 4). Biomarker modulations were consistent with lucitanib mode of action; targeting VEGFRs (significant increase of VEGFA, IL8, PlGF) and FGFR1 (significant increase of FGF23).
The combination is feasible but requires close patient monitoring and intensive management of adverse events. Those are in line with the anti-angiogenic activity of lucitanib.
10mg (N=12)12.5mg (N=6)All (N=18)Objective Response Rate (ORR)n(%) 11 (8.3)2 (33.3)3 (16.7) 95% CI 3[1.5;35.4][9.7;70.0][5.8;39.2]Clinical Benefit Rate (CBR)n(%) 24 (33.3)6 (100.0)10 (55.6) 95% CI 3[13.8;61.0][61.0;100.0][33.7;75.4]Duration of Clinical Benefitmedian (weeks)28.171.339.6 95% CI 3[27.9; 32.7][29.1; 79.1][27.9; 79.1]1: CR or PR 2: CR or PR or stabilization (SD or NonCR/NonPD) >24 weeks or at end of cycle 6 3: 95% Wilson method of Confidence interval of the estimate
Citation Format: Campone M, Bachelot T, Penault-Llorca F, Pallis A, Agrapart V, Pierrat M-J, Poirot C, Paux G, Dubois F, Xuereb L, Robert R, Andre F. A phase Ib study of oral administration of lucitanib in combination with fulvestrant in patients with HR+ metastatic breast cancer (mBC) [abstract]. In: Proceedings of the 2017 San Antonio Breast Cancer Symposium; 2017 Dec 5-9; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2018;78(4 Suppl):Abstract nr P1-09-11.
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Affiliation(s)
- M Campone
- Institut de Cancérologie de l'Ouest – Centre René Gauducheau, Saint-Herblain, France; Centre Léon Bérard Centre de Lutte Contre le Cancer (CLCC) de Lyon, Lyon, France; Centre Jean Perrin, Clermont-Ferrand, France; Institut de Recherches Internationales Servier, Suresnes, France; Institut Gustave Roussy, Villejuif, France
| | - T Bachelot
- Institut de Cancérologie de l'Ouest – Centre René Gauducheau, Saint-Herblain, France; Centre Léon Bérard Centre de Lutte Contre le Cancer (CLCC) de Lyon, Lyon, France; Centre Jean Perrin, Clermont-Ferrand, France; Institut de Recherches Internationales Servier, Suresnes, France; Institut Gustave Roussy, Villejuif, France
| | - F Penault-Llorca
- Institut de Cancérologie de l'Ouest – Centre René Gauducheau, Saint-Herblain, France; Centre Léon Bérard Centre de Lutte Contre le Cancer (CLCC) de Lyon, Lyon, France; Centre Jean Perrin, Clermont-Ferrand, France; Institut de Recherches Internationales Servier, Suresnes, France; Institut Gustave Roussy, Villejuif, France
| | - A Pallis
- Institut de Cancérologie de l'Ouest – Centre René Gauducheau, Saint-Herblain, France; Centre Léon Bérard Centre de Lutte Contre le Cancer (CLCC) de Lyon, Lyon, France; Centre Jean Perrin, Clermont-Ferrand, France; Institut de Recherches Internationales Servier, Suresnes, France; Institut Gustave Roussy, Villejuif, France
| | - V Agrapart
- Institut de Cancérologie de l'Ouest – Centre René Gauducheau, Saint-Herblain, France; Centre Léon Bérard Centre de Lutte Contre le Cancer (CLCC) de Lyon, Lyon, France; Centre Jean Perrin, Clermont-Ferrand, France; Institut de Recherches Internationales Servier, Suresnes, France; Institut Gustave Roussy, Villejuif, France
| | - M-J Pierrat
- Institut de Cancérologie de l'Ouest – Centre René Gauducheau, Saint-Herblain, France; Centre Léon Bérard Centre de Lutte Contre le Cancer (CLCC) de Lyon, Lyon, France; Centre Jean Perrin, Clermont-Ferrand, France; Institut de Recherches Internationales Servier, Suresnes, France; Institut Gustave Roussy, Villejuif, France
| | - C Poirot
- Institut de Cancérologie de l'Ouest – Centre René Gauducheau, Saint-Herblain, France; Centre Léon Bérard Centre de Lutte Contre le Cancer (CLCC) de Lyon, Lyon, France; Centre Jean Perrin, Clermont-Ferrand, France; Institut de Recherches Internationales Servier, Suresnes, France; Institut Gustave Roussy, Villejuif, France
| | - G Paux
- Institut de Cancérologie de l'Ouest – Centre René Gauducheau, Saint-Herblain, France; Centre Léon Bérard Centre de Lutte Contre le Cancer (CLCC) de Lyon, Lyon, France; Centre Jean Perrin, Clermont-Ferrand, France; Institut de Recherches Internationales Servier, Suresnes, France; Institut Gustave Roussy, Villejuif, France
| | - F Dubois
- Institut de Cancérologie de l'Ouest – Centre René Gauducheau, Saint-Herblain, France; Centre Léon Bérard Centre de Lutte Contre le Cancer (CLCC) de Lyon, Lyon, France; Centre Jean Perrin, Clermont-Ferrand, France; Institut de Recherches Internationales Servier, Suresnes, France; Institut Gustave Roussy, Villejuif, France
| | - L Xuereb
- Institut de Cancérologie de l'Ouest – Centre René Gauducheau, Saint-Herblain, France; Centre Léon Bérard Centre de Lutte Contre le Cancer (CLCC) de Lyon, Lyon, France; Centre Jean Perrin, Clermont-Ferrand, France; Institut de Recherches Internationales Servier, Suresnes, France; Institut Gustave Roussy, Villejuif, France
| | - R Robert
- Institut de Cancérologie de l'Ouest – Centre René Gauducheau, Saint-Herblain, France; Centre Léon Bérard Centre de Lutte Contre le Cancer (CLCC) de Lyon, Lyon, France; Centre Jean Perrin, Clermont-Ferrand, France; Institut de Recherches Internationales Servier, Suresnes, France; Institut Gustave Roussy, Villejuif, France
| | - F Andre
- Institut de Cancérologie de l'Ouest – Centre René Gauducheau, Saint-Herblain, France; Centre Léon Bérard Centre de Lutte Contre le Cancer (CLCC) de Lyon, Lyon, France; Centre Jean Perrin, Clermont-Ferrand, France; Institut de Recherches Internationales Servier, Suresnes, France; Institut Gustave Roussy, Villejuif, France
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Nguyen HS, Dubois F, Deschamps T, Cueff S, Pardon A, Leclercq JL, Seassal C, Letartre X, Viktorovitch P. Symmetry Breaking in Photonic Crystals: On-Demand Dispersion from Flatband to Dirac Cones. Phys Rev Lett 2018; 120:066102. [PMID: 29481254 DOI: 10.1103/physrevlett.120.066102] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Indexed: 05/25/2023]
Abstract
We demonstrate that symmetry breaking opens a new degree of freedom to tailor energy-momentum dispersion in photonic crystals. Using a general theoretical framework in two illustrative practical structures, we show that breaking symmetry enables an on-demand tuning of the local density of states of the same photonic band from zero (Dirac cone dispersion) to infinity (flatband dispersion), as well as any constant density over an adjustable spectral range. As a proof of concept, we demonstrate experimentally the transformation of the very same photonic band from a conventional quadratic shape to a Dirac dispersion, a flatband dispersion, and a multivalley one. This transition is achieved by finely tuning the vertical symmetry breaking of the photonic structures. Our results provide an unprecedented degree of freedom for optical dispersion engineering in planar integrated photonic devices.
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Affiliation(s)
- H S Nguyen
- Institut des Nanotechnologies de Lyon, INL/CNRS, Université de Lyon, 36 avenue Guy de Collongue, 69130 Ecully, France
| | - F Dubois
- Institut des Nanotechnologies de Lyon, INL/CNRS, Université de Lyon, 36 avenue Guy de Collongue, 69130 Ecully, France
| | - T Deschamps
- Institut des Nanotechnologies de Lyon, INL/CNRS, Université de Lyon, 36 avenue Guy de Collongue, 69130 Ecully, France
| | - S Cueff
- Institut des Nanotechnologies de Lyon, INL/CNRS, Université de Lyon, 36 avenue Guy de Collongue, 69130 Ecully, France
| | - A Pardon
- Institut des Nanotechnologies de Lyon, INL/CNRS, Université de Lyon, 36 avenue Guy de Collongue, 69130 Ecully, France
| | - J-L Leclercq
- Institut des Nanotechnologies de Lyon, INL/CNRS, Université de Lyon, 36 avenue Guy de Collongue, 69130 Ecully, France
| | - C Seassal
- Institut des Nanotechnologies de Lyon, INL/CNRS, Université de Lyon, 36 avenue Guy de Collongue, 69130 Ecully, France
| | - X Letartre
- Institut des Nanotechnologies de Lyon, INL/CNRS, Université de Lyon, 36 avenue Guy de Collongue, 69130 Ecully, France
| | - P Viktorovitch
- Institut des Nanotechnologies de Lyon, INL/CNRS, Université de Lyon, 36 avenue Guy de Collongue, 69130 Ecully, France
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Schillinger F, Sourdeau E, Boubaya M, Baseggio L, Clauser S, Cornet E, Debord C, Defour JP, Dubois F, Eveillard M, Galoisy AC, Geay MO, Mullier F, Nivaggioni V, Soenen V, Morel P, Garnache-Ottou F, Ronez E, Bardet V, Deconinck E. A new approach for diagnosing chronic myelomonocytic leukemia using structural parameters of Sysmex XNTM analyzers in routine laboratory practice. Scandinavian Journal of Clinical and Laboratory Investigation 2018; 78:159-164. [DOI: 10.1080/00365513.2018.1423702] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Françoise Schillinger
- Laboratoire d’hématologie, Etablissement Français du Sang de Bourgogne/Franche-Comté, Besançon, France
| | - Elise Sourdeau
- Laboratoire d‘hématologie, Assistance Publique-Hôpitaux de Paris, Hôpital Ambroise Paré, Boulogne-Billancourt, France
| | - Marouane Boubaya
- Unité de Recherche Clinique, Assistance Publique-Hôpitaux de Paris, Hôpital Avicenne, Bobigny, France
| | - Lucile Baseggio
- Laboratoire d’hématologie, Centre Hospitalier Universitaire Lyon Sud, Pierre-Bénite, France
| | - Sylvain Clauser
- Unité de Recherche Clinique, Assistance Publique-Hôpitaux de Paris, Hôpital Avicenne, Bobigny, France
| | - Edouard Cornet
- Laboratoire d'hématologie, Centre Hospitalier Universitaire Côte de Nacre, Caen, France
| | - Camille Debord
- Laboratoire d’hématologie, Centre Hospitalier Universitaire de Nantes, Nantes, France
| | - Jean-Pierre Defour
- Laboratoire d’hématologie, Cliniques universitaires Saint-Luc, Université Catholique de Louvain, Bruxelles, Belgique
| | - Frédérique Dubois
- Laboratoire d’hématologie, Centre Hospitalier Universitaire de Toulouse, Toulouse, France
| | - Marion Eveillard
- Laboratoire d’hématologie, Centre Hospitalier Universitaire de Nantes, Nantes, France
| | - Anne-Cécile Galoisy
- Laboratoire d’hématologie, Centre Hospitalier Universitaire de Strasbourg, Strasbourg, France
| | - Marie-Odile Geay
- Unité de Recherche Clinique, Assistance Publique-Hôpitaux de Paris, Hôpital Avicenne, Bobigny, France
| | - François Mullier
- Laboratoire d’hématologie, Université catholique de Louvain, CHU UCL Namur, Namur, Belgique
| | - Vanessa Nivaggioni
- Laboratoire d'Hématologie, Hôpital de la Timone, Centre Hospitalier Universitaire de Marseille, Marseille, France
| | - Valérie Soenen
- Laboratoire d'Hématologie, Centre Hospitalier Universitaire de Lille, Lille, France
| | - Pascal Morel
- Etablissement Français du Sang de Bourgogne/Franche-Comté, Besançon, France
| | - Francine Garnache-Ottou
- Laboratoire d’hématologie, Etablissement Français du Sang de Bourgogne/Franche-Comté, Besançon, France
| | - Emily Ronez
- Laboratoire d‘hématologie, Assistance Publique-Hôpitaux de Paris, Hôpital Ambroise Paré, Boulogne-Billancourt, France
| | - Valérie Bardet
- Laboratoire d‘hématologie, Assistance Publique-Hôpitaux de Paris, Hôpital Ambroise Paré, Boulogne-Billancourt, France
| | - Eric Deconinck
- Service d’hématologie clinique, Centre Hospitalier Universitaire de Besançon, Besançon, France, INSERM UMR 1098, Université de Franche-Comté, Besançon, France
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Pinsonneault L, Beaudin A, Bouchard MD, Dubois F, Pagé C, Baron G. Tuberculosis contact investigations by a small public health organization in Canada, 2012 to 2016. Eur J Public Health 2017. [DOI: 10.1093/eurpub/ckx189.038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
| | - A Beaudin
- University of Sherbrooke, Sherbrooke, Canada
| | - MD Bouchard
- University of Sherbrooke, Sherbrooke, Canada
| | - F Dubois
- University of Sherbrooke, Sherbrooke, Canada
| | - C Pagé
- University of Sherbrooke, Sherbrooke, Canada
| | - G Baron
- University of Sherbrooke, Sherbrooke, Canada
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Chia C, Dubois F. Impulsiveness does not prevent cooperation from emerging but reduces its occurrence: an experiment with zebra finches. Sci Rep 2017; 7:8544. [PMID: 28819131 PMCID: PMC5561265 DOI: 10.1038/s41598-017-09072-w] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Accepted: 07/21/2017] [Indexed: 11/09/2022] Open
Abstract
Reciprocal altruism, the most probable mechanism for cooperation among unrelated individuals, can be modelled as a Prisoner's Dilemma. This game predicts that cooperation should evolve whenever the players, who expect to interact repeatedly, make choices contingent to their partner's behaviour. Experimental evidence, however, indicates that reciprocity is rare among animals. One reason for this would be that animals are very impulsive compared to humans. Several studies have reported that temporal discounting (that is, strong preferences for immediate benefits) has indeed a negative impact on the occurrence of cooperation. Yet, the role of impulsive action, another facet of impulsiveness, remains unexplored. Here, we conducted a laboratory experiment in which male and female zebra finches (Taenyopigia guttata) were paired assortatively with respect to their level of impulsive action and then played an alternating Prisoner's Dilemma. As anticipated, we found that self-controlled pairs achieved high levels of cooperation by using a Generous Tit-for-Tat strategy, while impulsive birds that cooperated at a lower level, chose to cooperate with a fixed probability. If the inability of impulsive individuals to use reactive strategies are due to their reduced working memory capacity, thus our findings might contribute to explaining interspecific differences in cooperative behaviour.
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Affiliation(s)
- Camille Chia
- Département de Sciences Biologiques, Université de Montréal, Montréal, Qc, Canada
| | - Frédérique Dubois
- Département de Sciences Biologiques, Université de Montréal, Montréal, Qc, Canada.
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Affiliation(s)
- Bailey Jacobson
- Dépt des sciences biologiques; Univ. du Québec à Montréal, C.P. 8888, Succ. Centre-Ville; Montréal QC, H3C3P8 Canada
| | | | - Pedro R. Peres-Neto
- Dépt des sciences biologiques; Univ. du Québec à Montréal, C.P. 8888, Succ. Centre-Ville; Montréal QC, H3C3P8 Canada
- Dept of Biology; Concordia Univ.; Montréal QC Canada
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Lin Y, Daoudi A, Dubois F, Blach JF, Henninot JF, Kurochkin O, Grabar A, Segovia-Mera A, Legrand C, Douali R. A comparative study of nematic liquid crystals doped with harvested and non-harvested ferroelectric nanoparticles: phase transitions and dielectric properties. RSC Adv 2017. [DOI: 10.1039/c7ra04154c] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Broadband dielectric spectroscopy is used to determine the dielectric properties and phase transitions of the 4-n-octyl-4′-cyanobiphenyl liquid crystal (8CB) doped with harvested and non-harvested ferroelectric nanoparticles.
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Affiliation(s)
- Y. Lin
- Unité de Dynamique et Structure des Matériaux Moléculaires (UDSMM)
- Université du Littoral Côte d’Opale (ULCO)
- 62228 Calais
- France
| | - A. Daoudi
- Unité de Dynamique et Structure des Matériaux Moléculaires (UDSMM)
- Université du Littoral Côte d’Opale (ULCO)
- 59140 Dunkerque
- France
| | - F. Dubois
- Unité de Dynamique et Structure des Matériaux Moléculaires (UDSMM)
- Université du Littoral Côte d’Opale (ULCO)
- 62228 Calais
- France
| | - J.-F. Blach
- Univ. Artois
- CNRS
- Centrale Lille
- ENSCL
- Univ. Lille
| | | | - O. Kurochkin
- Institute of Physics of National Academy of Sciences of Ukraine
- 03028 Kyiv
- Ukraine
| | - A. Grabar
- Institute of Solid State Physics and Chemistry
- Uzhgorod National University
- 88000 Uzhgorod
- Ukraine
| | - A. Segovia-Mera
- Unité de Dynamique et Structure des Matériaux Moléculaires (UDSMM)
- Université du Littoral Côte d’Opale (ULCO)
- 59140 Dunkerque
- France
| | - C. Legrand
- Unité de Dynamique et Structure des Matériaux Moléculaires (UDSMM)
- Université du Littoral Côte d’Opale (ULCO)
- 62228 Calais
- France
| | - R. Douali
- Unité de Dynamique et Structure des Matériaux Moléculaires (UDSMM)
- Université du Littoral Côte d’Opale (ULCO)
- 62228 Calais
- France
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Chantal V, Gibelli J, Dubois F. Male foraging efficiency, but not male problem-solving performance, influences female mating preferences in zebra finches. PeerJ 2016; 4:e2409. [PMID: 27635358 PMCID: PMC5012330 DOI: 10.7717/peerj.2409] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [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: 06/17/2016] [Accepted: 08/04/2016] [Indexed: 12/02/2022] Open
Abstract
Experimental evidence suggests that females would prefer males with better cognitive abilities as mates. However, little is known about the traits reflecting enhanced cognitive skills on which females might base their mate-choice decisions. In particular, it has been suggested that male foraging performance could be used as an indicator of cognitive capacity, but convincing evidence for this hypothesis is still lacking. In the present study, we investigated whether female zebra finches (Taeniopygia guttata) modify their mating preferences after having observed the performance of males on a problem-solving task. Specifically, we measured the females’ preferences between two males once before and once after an observation period, during which their initially preferred male was incapable of solving the task contrary to their initially less-preferred male. We also conducted a control treatment to test whether the shift in female preferences was attributable to differences between the two stimulus males in their foraging efficiency. Finally, we assessed each bird’s performance in a color associative task to check whether females can discriminate among males based on their learning speed. We found that females significantly increased their preference toward the most efficient male in both treatments. Yet, there was no difference between the two treatments and we found no evidence that females assess male cognitive ability indirectly via morphological traits. Thus, our results suggest that females would not use the males’ problem-solving performance as an indicator of general cognitive ability to gain indirect fitness benefits (i.e., good genes) but rather to assess their foraging efficiency and gain direct benefits.
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Affiliation(s)
- Véronique Chantal
- Département de sciences biologiques, Université de Montréal , Montréal , Canada
| | - Julie Gibelli
- Département de sciences biologiques, Université de Montréal , Montréal , Canada
| | - Frédérique Dubois
- Département de sciences biologiques, Université de Montréal , Montréal , Canada
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Lin Y, Daoudi A, Segovia-Mera A, Dubois F, Legrand C, Douali R. Electric field effects on phase transitions in the 8CB liquid crystal doped with ferroelectric nanoparticles. Phys Rev E 2016; 93:062702. [PMID: 27415329 DOI: 10.1103/physreve.93.062702] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Indexed: 11/07/2022]
Abstract
The influence of a low ac electric field on phase transitions is discussed in the case of a nematic liquid crystal 4-n-octyl-4^{'}-cyanobiphenyl (8CB) doped with Sn_{2}P_{2}S_{6} ferroelectric nanoparticles. The phase-transition temperatures obtained from temperature-dependent dielectric measurements were higher than those determined by the calorimetric method. This difference is explained by the presence of the measuring electric field which induces two effects. The first one is the amplification of the interactions between the nanoparticle polarization and the liquid-crystal order parameter. The second one is the field-induced disaggregation or aggregation process at high nanoparticle concentrations.
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Affiliation(s)
- Y Lin
- Unité de Dynamique et Structure des Matériaux Moléculaires (UDSMM), Université du Littoral Côte d'Opale (ULCO), 62228 Calais, France
| | - A Daoudi
- Unité de Dynamique et Structure des Matériaux Moléculaires (UDSMM), Université du Littoral Côte d'Opale (ULCO), 59140 Dunkerque, France
| | - A Segovia-Mera
- Unité de Dynamique et Structure des Matériaux Moléculaires (UDSMM), Université du Littoral Côte d'Opale (ULCO), 59140 Dunkerque, France
| | - F Dubois
- Unité de Dynamique et Structure des Matériaux Moléculaires (UDSMM), Université du Littoral Côte d'Opale (ULCO), 62228 Calais, France
| | - C Legrand
- Unité de Dynamique et Structure des Matériaux Moléculaires (UDSMM), Université du Littoral Côte d'Opale (ULCO), 62228 Calais, France
| | - R Douali
- Unité de Dynamique et Structure des Matériaux Moléculaires (UDSMM), Université du Littoral Côte d'Opale (ULCO), 62228 Calais, France
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31
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Wick W, Brandes AA, Gorlia T, Bendszus M, Sahm F, Taal W, Taphoorn M, Domont J, Idbaih A, Campone M, Clement P, Stupp R, Fabbro M, Dubois F, Bais C, Musmeci D, Platten M, Weller M, Golfinopoulos V, van den Bent M. LB-05PHASE III TRIAL EXPLORING THE COMBINATION OF BEVACIZUMAB AND LOMUSTINE IN PATIENTS WITH FIRST RECURRENCE OF A GLIOBLASTOMA: THE EORTC 26101 TRIAL. Neuro Oncol 2015. [DOI: 10.1093/neuonc/nov306] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Dubois F, Derouiche Y, Leblond JM, Maschke U, Douali R. Compensated Arrhenius formalism applied to a conductivity study in poly(propylene glycol) diacrylate monomers. Phys Rev E Stat Nonlin Soft Matter Phys 2015; 92:032601. [PMID: 26465489 DOI: 10.1103/physreve.92.032601] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2015] [Indexed: 06/05/2023]
Abstract
The temperature dependence of the ionic conductivity is studied in a series of poly(propylene glycol) diacrylate monomers. The experimental data are analyzed by means of the approach recently proposed by Petrowsky et al. [J. Phys. Chem. B. 113, 5996 (2009)10.1021/jp810095g]. This so-called compensated Arrhenius formalism (CAF) approach takes into account the influence of the dielectric permittivity on the exponential prefactor in the classical Arrhenius equation. The experimental data presented in this paper show a good agreement with the CAF; this means that the exponential prefactor is principally dielectric permittivity dependent. The compensated data revealed two conduction processes with different activation energies; they correspond to low and high temperature ranges, respectively.
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Affiliation(s)
- F Dubois
- Unité de Dynamique et Structure des Matériaux Moléculaires (UDSMM), Université du Littoral Côte d'Opale, F-62228 Calais, France
| | - Y Derouiche
- Unité de Dynamique et Structure des Matériaux Moléculaires (UDSMM), Université du Littoral Côte d'Opale, F-62228 Calais, France; Unité Matériaux Et Transformations (UMET), Université de Lille 1 - Sciences et Technologies, F-59655 Villeneuve d'Ascq Cedex, France; and Laboratoire de Dispositifs Micro-ondes et Matériaux pour les Energies Renouvelables (DIMMER), Université Ziane Achour, 17000 Djelfa, Algeria
| | - J M Leblond
- Unité de Dynamique et Structure des Matériaux Moléculaires (UDSMM), Université du Littoral Côte d'Opale, F-62228 Calais, France
| | - U Maschke
- Unité Matériaux Et Transformations (UMET), Université de Lille 1 - Sciences et Technologies, F-59655 Villeneuve d'Ascq Cedex, France
| | - R Douali
- Unité de Dynamique et Structure des Matériaux Moléculaires (UDSMM), Université du Littoral Côte d'Opale, F-62228 Calais, France
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Besse B, Girard N, Gazzah A, Hierro C, Felip E, De Braud F, Camboni G, Dubois F, Leger C, Legrand F, Robert R, Therasse P, Soria J. 3032A Activity and safety profile of lucitanib in patients with advanced thymic epithelial tumours. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)31675-6] [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: 10/22/2022]
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Lin Y, Douali R, Dubois F, Segovia-Mera A, Daoudi A. On the phase transitions of 8CB/Sn2P2S6 liquid crystal nanocolloids. Eur Phys J E Soft Matter 2015; 38:103. [PMID: 26410848 DOI: 10.1140/epje/i2015-15103-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2015] [Revised: 06/11/2015] [Accepted: 08/28/2015] [Indexed: 06/05/2023]
Abstract
Using differential scanning calorimetry measurements, the influence of Sn2P2S6 ferroelectric nanoparticles on the phase transition temperatures of the 8CB liquid crystal is studied. The spontaneous polarization, ionic and anchoring effects are discussed. For low concentration of dopant, the global effect leads to a decrease and an increase of the nematic-isotropic and the smectic A-nematic phase transition temperatures, respectively. For high concentrations, due to aggregates formation, the predominant anchoring effect induces a decrease of the both phase transition temperatures.
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Affiliation(s)
- Y Lin
- Unité de Dynamique et Structure des Matériaux Moléculaires (UDSMM), Université du Littoral Côte d'Opale (ULCO), 50, Rue Ferdinand Buisson, 62228, Calais Cedex, France.
| | - R Douali
- Unité de Dynamique et Structure des Matériaux Moléculaires (UDSMM), Université du Littoral Côte d'Opale (ULCO), 50, Rue Ferdinand Buisson, 62228, Calais Cedex, France
| | - F Dubois
- Unité de Dynamique et Structure des Matériaux Moléculaires (UDSMM), Université du Littoral Côte d'Opale (ULCO), 50, Rue Ferdinand Buisson, 62228, Calais Cedex, France
| | - A Segovia-Mera
- Unité de Dynamique et Structure des Matériaux Moléculaires (UDSMM), Université du Littoral Côte d'Opale (ULCO), 145, Avenue Maurice Schumann, 59140, Dunkerque, France
| | - A Daoudi
- Unité de Dynamique et Structure des Matériaux Moléculaires (UDSMM), Université du Littoral Côte d'Opale (ULCO), 145, Avenue Maurice Schumann, 59140, Dunkerque, France
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35
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Riviere MK, Le Tourneau C, Paoletti X, Dubois F, Zohar S. Designs of drug-combination phase I trials in oncology: a systematic review of the literature. Ann Oncol 2015; 26:669-674. [DOI: 10.1093/annonc/mdu516] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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36
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Soria JC, DeBraud F, Bahleda R, Adamo B, Andre F, Dienstmann R, Delmonte A, Cereda R, Isaacson J, Litten J, Allen A, Dubois F, Saba C, Robert R, D'Incalci M, Zucchetti M, Camboni MG, Tabernero J. Corrections to "Phase I/IIa study evaluating the safety, efficacy, pharmacokinetics, and pharmacodynamics of lucitanib in advanced solid tumors". Ann Oncol 2015; 26:445. [PMID: 32590894 DOI: 10.1093/annonc/mdu547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- J-C Soria
- Department of Drug Development, Gustave-Roussy Cancer Campus, Villejuif, France
| | - F DeBraud
- European Institute of Oncology, Milan, Italy
| | - R Bahleda
- Department of Drug Development, Gustave-Roussy Cancer Campus, Villejuif, France
| | - B Adamo
- Vall d'Hebron Institute of Oncology (VHIO), Vall d'Hebron University Hospital, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - F Andre
- Department of Drug Development, Gustave-Roussy Cancer Campus, Villejuif, France
| | - R Dienstmann
- Vall d'Hebron Institute of Oncology (VHIO), Vall d'Hebron University Hospital, Universitat Autònoma de Barcelona, Barcelona, Spain; Sage Bionetworks, Fred Hutchinson Cancer Research Center, Seattle
| | - A Delmonte
- European Institute of Oncology, Milan, Italy
| | - R Cereda
- Clovis Oncology, Inc., San Francisco; Clovis Oncology, Inc., Boulder, USA; Clovis Oncology, Inc., Milan, Italy
| | - J Isaacson
- Clovis Oncology, Inc., San Francisco; Clovis Oncology, Inc., Boulder, USA; Clovis Oncology, Inc., Milan, Italy
| | - J Litten
- Clovis Oncology, Inc., San Francisco; Clovis Oncology, Inc., Boulder, USA; Clovis Oncology, Inc., Milan, Italy
| | - A Allen
- Clovis Oncology, Inc., San Francisco; Clovis Oncology, Inc., Boulder, USA; Clovis Oncology, Inc., Milan, Italy
| | - F Dubois
- Institut de Recherche International Servier, Suresnes, France
| | - C Saba
- Institut de Recherche International Servier, Suresnes, France
| | - R Robert
- Institut de Recherche International Servier, Suresnes, France
| | - M D'Incalci
- Istituto di Ricerche Farmacologiche Mario Negri, Via La Masa, Milan, Italy
| | - M Zucchetti
- Istituto di Ricerche Farmacologiche Mario Negri, Via La Masa, Milan, Italy
| | - M G Camboni
- Clovis Oncology, Inc., San Francisco; Clovis Oncology, Inc., Boulder, USA; Clovis Oncology, Inc., Milan, Italy
| | - J Tabernero
- Vall d'Hebron Institute of Oncology (VHIO), Vall d'Hebron University Hospital, Universitat Autònoma de Barcelona, Barcelona, Spain
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Dubois F, Giraldeau LA. How the cascading effects of a single behavioral trait can generate personality. Ecol Evol 2014; 4:3038-45. [PMID: 25247061 PMCID: PMC4161177 DOI: 10.1002/ece3.1157] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2014] [Revised: 06/03/2014] [Accepted: 06/14/2014] [Indexed: 11/09/2022] Open
Abstract
Individuals from the same population generally vary in suites of correlated behavioral traits: personality. Yet, the strength of the behavioral correlations sometimes differs among populations and environmental conditions, suggesting that single underlying mechanisms, such as genetic constraints, cannot account for them. We propose, instead, that such suites of correlated traits may arise when a single key behavior has multiple cascading effects on several other behaviors through affecting the range of options available. For instance, an individual's shyness can constrain its habitat choice, which, in turn, could restrict the expression of other behavioral traits. We hypothesize that shy individuals should be especially restrained in their choice of habitat when the risk of predation is high, which then canalizes them into different behavioral options making them appear behaviorally distinct from bolder individuals. We test this idea using an individual-based simulation model. Our results show that individual differences in boldness can be sufficient, under high predation pressure, to generate behavioral correlations between boldness and both the tendency to aggregate and the propensity to use social information. Thus, our findings support the idea that some behavioral syndromes can be, at least to some extent, labile. Our model further predicts that such cascading effects should be more pronounced in populations with a long history of predation, which are expected to exhibit a low average boldness level, compared with predator-naïve populations.
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Affiliation(s)
- Frédérique Dubois
- Département de Sciences Biologiques, Université de Montréal Montréal, Quebec, Canada
| | - Luc-Alain Giraldeau
- Département des Sciences Biologiques, Université du Québec à Montréal Montréal, Quebec, Canada
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Soria JC, DeBraud F, Bahleda R, Adamo B, Andre F, Dientsmann R, Delmonte A, Cereda R, Isaacson J, Litten J, Allen A, Dubois F, Saba C, Robert R, D'Incalci M, Zucchetti M, Camboni MG, Tabernero J. Phase I/IIa study evaluating the safety, efficacy, pharmacokinetics, and pharmacodynamics of lucitanib in advanced solid tumors. Ann Oncol 2014; 25:2244-2251. [PMID: 25193991 DOI: 10.1093/annonc/mdu390] [Citation(s) in RCA: 141] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Lucitanib is a potent, oral inhibitor fibroblast growth factor receptor types 1 and 2 (FGFR), vascular endothelial growth factor receptor types 1, 2, and 3 (VEGFR), platelet-derived growth factor receptor types α and β (PGFRα/β), which are essential kinases for tumor growth, survival, migration, and angiogenesis. Several tumor types, including breast carcinoma, demonstrate amplification of fibroblast growth factor (FGF)-related genes. There are no approved drugs for molecularly defined FGF-aberrant (FGFR1- or FGF3/4/19-amplified) tumors. METHODS This open-label phase I/IIa study involved a dose-escalation phase to determine maximum tolerated dose (MTD), recommended dose (RD), and pharmacokinetics of lucitanib in patients with advanced solid tumors, followed by a dose-expansion phase to obtain preliminary evidence of efficacy in patients who could potentially benefit from treatment (i.e. with tumors harboring FGF-aberrant pathway or considered angiogenesis-sensitive). RESULTS Doses from 5 to 30 mg were evaluated with dose-limiting toxic effects dominated by vascular endothelial growth factor (VEGF) inhibition-related toxic effects at the 30 mg dose level (one case of grade 4 depressed level of consciousness and two cases of grade 3 thrombotic microangiopathy). The most common adverse events (all grades, all cohorts) were hypertension (91%), asthenia (42%), and proteinuria (57%). Exposure increased with dose and t½ was 31-40 h, suitable for once daily administration. Seventy-six patients were included. All but one had stage IV; 42% had >3 lines of previous chemotherapy. Sixty-four patients were assessable for response; 58 had measurable disease. Clinical activity was observed at all doses tested with durable Response Evaluation Criteria In Solid Tumors (RECIST) partial responses in a variety of tumor types. In the angiogenesis-sensitive group, objective RECIST response rate (complete response + partial response) was 26% (7 of 27) and progression-free survival (PFS) was 25 weeks. In assessable FGF-aberrant breast cancer patients, 50% (6 of 12) achieved RECIST partial response with a median PFS of 40.4 weeks for all treated patients. CONCLUSION Lucitanib has promising efficacy and a manageable side-effect profile. The spectrum of activity observed demonstrates clinical benefit in both FGF-aberrant and angiogenesis-sensitive populations. A comprehensive phase II program is planned.
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Affiliation(s)
- J-C Soria
- Department of Drug Development, Gustave-Roussy Cancer Campus, Villejuif, France.
| | - F DeBraud
- European Institute of Oncology, Milan, Italy
| | - R Bahleda
- Department of Drug Development, Gustave-Roussy Cancer Campus, Villejuif, France
| | - B Adamo
- Vall d'Hebron Institute of Oncology (VHIO), Vall d'Hebron University Hospital, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - F Andre
- Department of Drug Development, Gustave-Roussy Cancer Campus, Villejuif, France
| | - R Dientsmann
- Vall d'Hebron Institute of Oncology (VHIO), Vall d'Hebron University Hospital, Universitat Autònoma de Barcelona, Barcelona, Spain; Sage Bionetworks, Fred Hutchinson Cancer Research Center, Seattle
| | - A Delmonte
- European Institute of Oncology, Milan, Italy
| | - R Cereda
- Clovis Oncology, Inc., San Francisco; Clovis Oncology, Inc., Boulder,USA; Clovis Oncology, Inc., Milan, Italy
| | - J Isaacson
- Clovis Oncology, Inc., San Francisco; Clovis Oncology, Inc., Boulder,USA; Clovis Oncology, Inc., Milan, Italy
| | - J Litten
- Clovis Oncology, Inc., San Francisco; Clovis Oncology, Inc., Boulder,USA; Clovis Oncology, Inc., Milan, Italy
| | - A Allen
- Clovis Oncology, Inc., San Francisco; Clovis Oncology, Inc., Boulder,USA; Clovis Oncology, Inc., Milan, Italy
| | - F Dubois
- Institut de Recherche International Servier, Suresnes, France
| | - C Saba
- Institut de Recherche International Servier, Suresnes, France
| | - R Robert
- Institut de Recherche International Servier, Suresnes, France
| | - M D'Incalci
- Istituto di Ricerche Farmacologiche Mario Negri, Via La Masa, Milan, Italy
| | - M Zucchetti
- Istituto di Ricerche Farmacologiche Mario Negri, Via La Masa, Milan, Italy
| | - M G Camboni
- Clovis Oncology, Inc., San Francisco; Clovis Oncology, Inc., Boulder,USA; Clovis Oncology, Inc., Milan, Italy
| | - J Tabernero
- Vall d'Hebron Institute of Oncology (VHIO), Vall d'Hebron University Hospital, Universitat Autònoma de Barcelona, Barcelona, Spain
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de Saint-Denis T, Lerhun E, Ramirez C, Devos P, Maurage CA, Dubois F, Reyns N, Escande F. P04.10 * PREDICTIVE VALUE OF MGMT PROMOTER METHYLATION QUANTITATIVE ASSESSMENT IN GLIOBLASTOMA, WHICH OPTIMAL CUT-POINT? Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou174.142] [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: 11/12/2022] Open
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40
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Haguenoer K, Giraudeau B, Gaudy-Graffin C, de Pinieux I, Dubois F, Trignol-Viguier N, Viguier J, Marret H, Goudeau A. Accuracy of dry vaginal self-sampling for detecting high-risk human papillomavirus infection in cervical cancer screening: A cross-sectional study. Gynecol Oncol 2014; 134:302-8. [DOI: 10.1016/j.ygyno.2014.05.026] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2014] [Revised: 05/23/2014] [Accepted: 05/28/2014] [Indexed: 11/17/2022]
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Riviere MK, Yuan Y, Dubois F, Zohar S. A Bayesian dose finding design for clinical trials combining a cytotoxic agent with a molecularly targeted agent. J R Stat Soc Ser C Appl Stat 2014. [DOI: 10.1111/rssc.12072] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- M.-K. Riviere
- Université Paris 5 and Université Paris 6; France
- Institut de Recherches Internationales Servier; Suresnes France
| | - Y. Yuan
- University of Texas M. D. Anderson Cancer Center; Houston USA
| | - F. Dubois
- Institut de Recherches Internationales Servier; Suresnes France
| | - S. Zohar
- Université Paris 5 and Université Paris 6; France
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Riviere MK, Dubois F, Zohar S. Competing designs for drug combination in phase I dose-finding clinical trials. Stat Med 2014; 34:1-12. [DOI: 10.1002/sim.6094] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2012] [Revised: 12/20/2013] [Accepted: 12/23/2013] [Indexed: 11/11/2022]
Affiliation(s)
- M.-K. Riviere
- INSERM, U1138, Equipe 22, Centre de Recherche des Cordeliers; Université Paris 5, Université Paris 6; Paris France
- IRIS (Institut de Recherches Internationales Servier); Suresnes France
| | - F. Dubois
- IRIS (Institut de Recherches Internationales Servier); Suresnes France
| | - S. Zohar
- INSERM, U1138, Equipe 22, Centre de Recherche des Cordeliers; Université Paris 5, Université Paris 6; Paris France
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Abstract
We present the first non-resonant and non-enhanced Raman correlation spectroscopy experiments. They are conducted on a confocal microscope combined with a Raman spectrometer. The thermal fluctuations of the Raman intensities scattered by dispersions of polystyrene particles of sub-micrometric diameters are measured and analysed by deriving the autocorrelation functions (ACFs) of the intensities. We show that for particles of diameter down to 200 nm, RCS measurements are successfully obtained in spite of the absence of any source of amplification of the Raman signal. For particles of diameter ranging from 200 to 750 nm, the ACFs present a time-decay behaviour in accordance with the model of free Brownian particles. For particles of 1000 nm in diameter, the AFCs present a different behaviour with a much smaller characteristic time. This results from the dynamics of a single-Brownian particle trapped in the confocal volume by the optical forces of the focus spot.
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Affiliation(s)
- A Barbara
- Institut Néel, CNRS et Universit´e Joseph Fourier, BP 166, F-38042 Grenoble Cedex 9, France.
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Affiliation(s)
- Frédérique Dubois
- Département de sciences biologiques; Université de Montréal; Montréal; QC; Canada
| | | | - Jacques Brodeur
- Département de sciences biologiques; Université de Montréal; Montréal; QC; Canada
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Le Rhun E, Taillibert S, Zairi F, Kotecki N, Devos P, Mailliez A, Servent V, Vanlemmens L, Vennin P, Boulanger T, Baranzelli MC, André C, Marliot G, Cazin JL, Dubois F, Assaker R, Bonneterre J, Chamberlain MC. A retrospective case series of 103 consecutive patients with leptomeningeal metastasis and breast cancer. J Neurooncol 2013; 113:83-92. [PMID: 23456656 DOI: 10.1007/s11060-013-1092-8] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2012] [Accepted: 02/17/2013] [Indexed: 01/17/2023]
Abstract
Approximately 2-5 % of patients with breast cancer (BC) develop leptomeningeal metastasis (LM). 103 consecutive patients with BC were diagnosed with LM and initially treated with intra-CSF liposomal cytarabine from 2007 to 2011 at a single institution. Correlations were determined with respect to patient characteristics and BC subtype with regard to overall survival (OS). At LM diagnosis, 61 % of patients had a 0-2 performance status (PS), the remaining 39 % were severely neurologically impaired. Regardless of PS, all patients received intra-cerebrospinal fluid (CSF) liposomal cytarabine as first-line treatment. Systemic treatment and radiotherapy were also given in 58 and 17 % of patients respectively as clinically appropriate. Second- (intra-CSF thiotepa) and third-line (intra-CSF methotrexate) treatment was administered in 24 and 6 patients respectively. Median OS was 3.8 months (range 1 day-2.8 years). In multivariate analysis, an initial combined treatment, a second-line treatment with intra-CSF thiotepa, an initial clinical response, and a non-'ER/PR/HER2 negative' BC were significantly associated with a better OS. Median OS in this heterogeneous retrospective case series was similar to that of previously observed BC patients treated with intra-CSF methotrexate suggesting intra-CSF liposomal cytarabine is a reasonable first choice therapy of BC-related LM.
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Affiliation(s)
- E Le Rhun
- Department of Medical Oncology, Oscar Lambret Center, 3 rue Frédéric Combemale, 59020 Lille Cedex, France.
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Arnaud F, Dubois F, Soulairol I, Knight M, Roux C, Kinowski JM. GRP-182 The Clinical Pharmacist’s Impact on the Appropriate Use of Medicines in Elderly Patients. Eur J Hosp Pharm 2013. [DOI: 10.1136/ejhpharm-2013-000276.182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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Cauchard L, Boogert NJ, Lefebvre L, Dubois F, Doligez B. Problem-solving performance is correlated with reproductive success in a wild bird population. Anim Behav 2013. [DOI: 10.1016/j.anbehav.2012.10.005] [Citation(s) in RCA: 135] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Durand M, Le Guellec S, Pourchez J, Dubois F, Aubert G, Chantrel G, Vecellio L, Hupin C, De Gersem R, Reychler G, Pitance L, Diot P, Jamar F. Sonic aerosol therapy to target maxillary sinuses. Eur Ann Otorhinolaryngol Head Neck Dis 2012; 129:244-50. [PMID: 22921302 DOI: 10.1016/j.anorl.2011.09.002] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2011] [Revised: 08/30/2011] [Accepted: 09/06/2011] [Indexed: 10/28/2022]
Abstract
AIM Intranasal aerosol administration of drugs is widely used by ENT specialists. Although clinical evidence is still lacking, intranasal nebulization appears to be an interesting therapeutic option for local drug delivery, targeting anatomic sites beyond the nasal valve. The sonic nebulizer NL11SN associates a 100Hertz (Hz) sound to the aerosolization to improve deposition in the nasal/paranasal sinuses. The aim of the present study was: to evaluate in vivo the influence of associating a 100Hz sound on sinus ventilation and nasal and pulmonary aerosol deposition in normal volunteers, and; to quantify in vitro aerosol deposition in the maxillary sinuses in a plastinated head model. MATERIAL AND METHODS Scintigraphic analysis of (81m)Kr gas ventilation and of sonic aerosol ((99m)Tc-DTPA) deposition using the NL11SN was performed in vivo in seven healthy volunteers. In parallel, NL11SN gentamicin nebulization was performed, with or without associated 100Hz sound, in a plastinated human head model; the gross amount of gentamicin delivered to the paranasal sinuses was determined by fluorescence polarization immunoassay. RESULTS Associating the 100Hz sound to (81m)Kr gas ensured paranasal sinus ventilation in healthy volunteers. (99m)Tc-DTPA particles nebulized with the NL11SN were deposited predominantly in the nasal cavities (2/3, vs 1/3 in the lungs). In vitro, the use of NL11SN in sonic mode increased gentamicin deposition threefold in the plastinated model sinuses (P<0.002); the resulting antibiotic deposit would be sufficient to induce a local therapeutic effect. CONCLUSION The NL11SN nebulizer ensured preferential nasal cavity aerosol deposition and successfully targeted the maxillary sinuses.
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Affiliation(s)
- M Durand
- Service d'ORL et chirurgie cervico-faciale, centre hospitalier Émile-Roux, Le Puy-en-Velay, France.
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Abstract
The social environment of animals strongly influences the mating preferences of both the choosing and the observing individuals. Notably, there is recent evidence that polygamous males decrease their selectivity when being observed by competitors in order to direct their rivals' attention away from their true interest and, consequently, reduce sperm competition risk. Yet, other mechanisms, whose importance remains unexplored, could induce similar effects. In monogamous species with mutual choice, particularly, if males adjust their selectivity according to the risk of being rejected by their preferred mate, they should as well become less selective when potential rivals are present. Here, we investigated whether the presence of bystanders modifies male mating preferences when the risk of sperm competition is low, by carrying out mate-choice experiments with male zebra finches (Taeniopygia guttata) whose preferences for two females were measured twice: with and without an audience. We found that the presence of potential rivals had no effect on the males' choosiness. However, with an audience, they spent more time with the female that was considered as the less attractive one in the control condition. These findings support the hypothesis that monogamous males alter their mate choice decisions in the presence of a male audience to reduce the risk of remaining unpaired. Thus, our results indicate that several explanations can account for the changes in male preferences due to the presence of competitors and highlight the importance of assessing the relative role of each mechanism potentially involved, to be able to make conclusions about the effect of an audience on signal evolution.
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Affiliation(s)
- Frédérique Dubois
- Département de Sciences Biologiques, Université de Montréal, Montréal, Québec, Canada.
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