570 results on '"Lassus P"'
Search Results
2. Different impacts of diet composition on the stoichiometric traits of two freshwater species
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Evangelista, C., Danger, M., Lassus, R., and Cucherousset, J.
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- 2024
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3. Private detection of relatives in forensic genomics using homomorphic encryption
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de Souza, Fillipe D. M., de Lassus, Hubert, and Cammarota, Ro
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- 2024
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4. Individual In-Situ GPS-Derived Acceleration-Speed Profiling: Toward Automatization and Refinement in Male Professional Rugby Union Players
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Miguens, Nathan, Brocherie, Franck, Moulié, Loïc, Milhet, Patrick, Bon, Mathieu, Lassus, Pierre, Toussaint, Jean-François, and Sedeaud, Adrien
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- 2024
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5. Enhanced recovery after surgery (ERAS) protocol improves patient outcomes in free flap surgery for head and neck cancer
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Nieminen, Teija, Tapiovaara, Laura, Bäck, Leif, Lindford, Andrew, Lassus, Patrik, Lehtonen, Lasse, Mäkitie, Antti, and Keski-Säntti, Harri
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- 2024
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6. Correction: Enhanced recovery after surgery (ERAS) protocol improves patient outcomes in free flap surgery for head and neck cancer
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Nieminen, Teija, Tapiovaara, Laura, Bäck, Leif, Lindford, Andrew, Lassus, Patrik, Lehtonen, Lasse, Mäkitie, Antti, and Keski-Säntti, Harri
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- 2024
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7. Costs of oropharyngeal squamous cell cancer treatment in Finland
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Tikkanen, Juhana, Nieminen, Teija, Lassus, Patrik, Tenhunen, Mikko, Lehtonen, Lasse, and Mäkitie, Antti
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- 2023
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8. Individual In-Situ GPS-Derived Acceleration-Speed Profiling: Toward Automatization and Refinement in Male Professional Rugby Union Players
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Nathan Miguens, Franck Brocherie, Loïc Moulié, Patrick Milhet, Mathieu Bon, Pierre Lassus, Jean-François Toussaint, and Adrien Sedeaud
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Rugby union ,Testing ,Sprint ,Running ,Sports medicine ,RC1200-1245 - Abstract
Abstract Background Recently a proof-of-concept was proposed to derive the soccer players’ individual in-situ acceleration-speed (AS) profile from global positioning system (GPS) data collected over several sessions and games. The present study aimed to propose an automatized method of individual GPS-derived in-situ AS profiling in a professional rugby union setting. Method AS profiles of forty-nine male professional rugby union players representing 61.5 million positions, from which acceleration was derived from speed during 51 training sessions and 11 official games, were analyzed. A density-based clustering algorithm was applied to identify outlier points. Multiple AS linear relationships were modeled for each player and session, generating numerous theoretical maximal acceleration (A 0 ), theoretical maximal running speed (S 0 ) and AS slope (AS slope, i.e., overall orientation of the AS profile). Each average provides information on the most relevant value while the standard deviation denotes the method accuracy. In order to assess the reliability of the AS profile within the data collection period, data were compared over two 2-week phases by the inter-class correlation coefficient. A 0 and S 0 between positions and type of sessions (trainings and games) were compared using ANOVA and post hoc tests when the significant threshold had been reached. Results All AS individual profiles show linear trends with high coefficient of determination (r2 > 0.81). Good reliability (Inter-class Correlation Coefficient ranging from 0.92 to 0.72) was observed between AS profiles, when determined 2 weeks apart for each player. AS profiles depend on players’ positions, types of training and games. Training and games data highlight that highest A 0 are obtained during games, while greatest S 0 are attained during speed sessions. Conclusions This study provides individual in-situ GPS-derived AS profiles with automatization capability. The method calculates an error of measurement for A 0 and S 0 , of paramount importance in order to improve their daily use. The AS profile differences between training, games and playing positions open several perspectives for performance testing, training monitoring, injury prevention and return-to-sport sequences in professional rugby union, with possible transferability to other sprint-based sports. Key Points AS profiles computed from rugby union GPS data provide positional benchmarks during training and competition. This study provides automatic detection of atypical data and the computation of error measurement of theoretical maximal acceleration and speed components. This refinement constitutes a step forward for a daily use of ecological data by considering data collection and method reliabilities. This easy-to-implement approach may facilitate its use to the performance management process (talent identification, training monitoring and individualization, return-to-sport).
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- 2024
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9. Long-term skeletal, cephalometric, and volumetric changes in two Helsinki bimaxillary face transplant patients
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Manninen, A.A., Heliövaara, A., Horelli, J., Mesimäki, K., Wilkman, T., Lindford, A.J., and Lassus, P.
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- 2024
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10. Fifty free flaps from the ear
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Zena, M., Homsy, P., Romanowski, E., Lindford, A., and Lassus, P.
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- 2024
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11. Drug response profiles in patient-derived cancer cells across histological subtypes of ovarian cancer: real-time therapy tailoring for a patient with low-grade serous carcinoma
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Murumägi, Astrid, Ungureanu, Daniela, Khan, Suleiman, Arjama, Mariliina, Välimäki, Katja, Ianevski, Aleksandr, Ianevski, Philipp, Bergström, Rebecka, Dini, Alice, Kanerva, Anna, Koivisto-Korander, Riitta, Tapper, Johanna, Lassus, Heini, Loukovaara, Mikko, Mägi, Andrus, Hirasawa, Akira, Aoki, Daisuke, Pietiäinen, Vilja, Pellinen, Teijo, Bützow, Ralf, Aittokallio, Tero, and Kallioniemi, Olli
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- 2023
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12. Quantifying Hemodynamic Cardiac Stress and Cardiomyocyte Injury in Normotensive and Hypertensive Acute Heart Failure
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Nikola Kozhuharov, Eleni Michou, Desiree Wussler, Maria Belkin, Corinna Heinisch, Johan Lassus, Krista Siirilä-Waris, Harjola Veli-Pekka, Nisha Arenja, Thenral Socrates, Albina Nowak, Samyut Shrestha, Julie Valerie Willi, Ivo Strebel, Danielle M. Gualandro, Katharina Rentsch, Micha T. Maeder, Thomas Münzel, Mucio Tavares de Oliveira Junior, Arnold von Eckardstein, Tobias Breidthardt, and Christian Mueller
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acute heart failure ,pathophysiology ,natriuretic peptides ,cardiac troponin ,Biology (General) ,QH301-705.5 - Abstract
Background: The characterization of the different pathophysiological mechanisms involved in normotensive versus hypertensive acute heart failure (AHF) might help to develop individualized treatments. Methods: The extent of hemodynamic cardiac stress and cardiomyocyte injury was quantified by measuring the B-type natriuretic peptide (BNP), N-terminal proBNP (NT-proBNP), and high-sensitivity cardiac troponin T (hs-cTnT) concentrations in 1152 patients presenting with centrally adjudicated AHF to the emergency department (ED) (derivation cohort). AHF was classified as normotensive with a systolic blood pressure (SBP) of 90–140 mmHg and hypertensive with SBP > 140 mmHg at presentation to the ED. Findings were externally validated in an independent AHF cohort (n = 324). Results: In the derivation cohort, with a median age of 79 years, 43% being women, 667 (58%) patients had normotensive and 485 (42%) patients hypertensive AHF. Hemodynamic cardiac stress, as quantified by the BNP and NT-proBNP, was significantly higher in normotensive as compared to hypertensive AHF [1105 (611–1956) versus 827 (448–1419) pg/mL, and 5890 (2959–12,162) versus 4068 (1986–8118) pg/mL, both p < 0.001, respectively]. Similarly, the extent of cardiomyocyte injury, as quantified by hs-cTnT, was significantly higher in normotensive AHF as compared to hypertensive AHF [41 (24–71) versus 33 (19–59) ng/L, p < 0.001]. A total of 313 (28%) patients died during 360 days of follow-up. All-cause mortality was higher in patients with normotensive AHF vs. patients with hypertensive AHF (hazard ratio 1.66, 95%CI 1.31–2.10; p < 0.001). Normotensive patients with a high BNP, NT-proBNP, or hs-cTnT had the highest mortality. The findings were confirmed in the validation cohort. Conclusion: Biomarker profiling revealed a higher extent of hemodynamic stress and cardiomyocyte injury in patients with normotensive versus hypertensive AHF.
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- 2024
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13. A side-by-side comparison of the performance and time-and-motion data of VITEK MS
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Bardelli, Marta, Padovani, Michela, Fiorentini, Simona, Caruso, Arnaldo, Yamamura, Deborah, Gaskin, Mark, Jissam, Ali, González-López, Juan José, Larrosa, M. Nieves, Pumarola, Tomàs, Lassus, Anna, Louis, Barbara, and Capron, Nicolas
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- 2022
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14. Pour une éthique de la grâce. Habiter la profondeur, condition éthique de la création en acte
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Marie-Pierre Lassus
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Visual arts ,N1-9211 - Abstract
Faire l’expérience de la grâce ne serait-il pas le véritable but de l’artiste, créateur ou interprète ? Nous tenterons d’y répondre à la lumière de la théorie du duende de Lorca qui, en mettant l’accent sur le caractère insaisissable et intraduisible de l’expérience artistique, questionne les limites de l’interprétation scientifique de l’art. Dans cette nuit du langage retrouvée, la musique peut provoquer des moments de grâce et d’intuition unifiée comme en témoignent les artistes et penseurs cités ici qui tentent d’approcher le mystère de la création artistique. Dans un monde où tout se mesure, reconnaître l’existence d’un incommensurable dans l’art et dans la musique en particulier est urgent aujourd’hui, tant sur le plan poétique que politique ; cela fait de la grâce un concept éthique, éloigné de toute volonté esthétique. Libératrice de forces vitales, elle prend appui sur le corps vivant pour découvrir des profondeurs inconnues d’où surgit une altérité qui le déborde et lui résiste mais dont la présence est constitutive de tout art véritable. En tant que jeu avec les forces (contraires) la musique fait coexister et résonner ensemble tous les éléments de cette lutte en un moment de grâce recherché par l’interprète dans sa création en acte.
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- 2023
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15. Technologies for Writing at the Private Sector Workplace
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Jannika Lassus
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workplace writing ,literacy practices ,software ,business communication ,swedish-speaking finns ,Communication. Mass media ,P87-96 - Abstract
Workplace literacy practices constitute the basis of today’s increasingly textualised work life. Due to the legislation on trade secrets, less research has been conducted on literacy practices in the private sector. This interview study of reported literacy practices focused on the soft-ware, dictionaries and other technologies used in writing tasks in 11 different businesses in Finland. The informants (n=18) were Swedish-speaking Finns working in the Helsinki area and in Vaasa. The study showed that office software (Word, Excel, PowerPoint) is used for writing, as is email clients, chats and messaging systems. When encountering difficulties in writing, asking a colleague for help is a frequent strategy, together with searching the internet using Google. More established dictionaries, glossaries, and synonym web sites are also used, but to a lesser extent. The findings suggest implications for teaching at different levels: students could be trained in complex and multilingual text production, to efficiently use the widely used office software and to assess content in free dictionaries and on similar websites from a linguistic point of view.
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- 2021
16. Penser le lien culture-nature en droit : Réflexions. Réalisations. Aspirations.
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Guèvremont, Véronique, de Lassus Saint-Geniès, Géraud, Alexandre, Caecilia, Avec la collaboration de, Guèvremont, Véronique, de Lassus Saint-Geniès, Géraud, and Alexandre, Caecilia
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- 2023
17. P62 accumulates through neuroanatomical circuits in response to tauopathy propagation
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François-Xavier Blaudin de Thé, Benjamin Lassus, Ari W. Schaler, Stephanie L. Fowler, Chris N. Goulbourne, Ross Jeggo, Clotilde Mannoury la Cour, Mark J. Millan, and Karen E. Duff
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Tauopathy ,Spread ,p62 ,Clearance ,Microfluidics ,Electron microscopy ,Neurology. Diseases of the nervous system ,RC346-429 - Abstract
Abstract In Alzheimer’s disease and related tauopathies, trans-synaptic transfer and accumulation of pathological tau from donor to recipient neurons is thought to contribute to disease progression, but the underlying mechanisms are poorly understood. Using complementary in vivo and in vitro models, we examined the relationship between these two processes and neuronal clearance. Accumulation of p62 (a marker of defective protein clearance) correlated with pathological tau accumulation in two mouse models of tauopathy spread; Entorhinal Cortex-tau (EC-Tau) mice where tau pathology progresses in time from EC to other brain regions, and PS19 mice injected with tau seeds. In both models and in several brain regions, p62 colocalized with human tau in a pathological conformation (MC1 antibody). In EC-Tau mice, p62 accumulated before overt tau pathology had developed and was associated with the presence of aggregation-competent tau seeds identified using a FRET-based assay. Furthermore, p62 accumulated in the cytoplasm of neurons in the dentate gyrus of EC-Tau mice prior to the appearance of MC1 positive tauopathy. However, MC1 positive tau was shown to be present at the synapse and to colocalize with p62 as shown by immuno electron microscopy. In vitro, p62 colocalized with tau inclusions in two primary cortical neuron models of tau pathology. In a three-chamber microfluidic device containing neurons overexpressing fluorescent tau, seeding of tau in the donor chamber led to tau pathology spread and p62 accumulation in both the donor and the recipient chamber. Overall, these data are in accordance with the hypothesis that the accumulation and trans-synaptic spread of pathological tau disrupts clearance mechanisms, preceding the appearance of obvious tau aggregation. A vicious cycle of tau accumulation and clearance deficit would be expected to feed-forward and exacerbate disease progression across neuronal circuits in human tauopathies.
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- 2021
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18. High-precision timing of 42 millisecond pulsars with the European Pulsar Timing Array
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Desvignes, G., Caballero, R. N., Lentati, L., Verbiest, J. P. W., Champion, D. J., Stappers, B. W., Janssen, G. H., Lazarus, P., Osłowski, S., Babak, S., Bassa, C. G., Brem, P., Burgay, M., Cognard, I., Gair, J. R., Graikou, E., Guillemot, L., Hessels, J. W. T., Jessner, A., Jordan, C., Karuppusamy, R., Kramer, M., Lassus, A., Lazaridis, K., Lee, K. J., Liu, K., Lyne, A. G., McKee, J., Mingarelli, C. M. F., Perrodin, D., Petiteau, A., Possenti, A., Purver, M. B., Rosado, P. A., Sanidas, S., Sesana, A., Shaifullah, G., Smits, R., Taylor, S. R., Theureau, G., Tiburzi, C., van Haasteren, R., and Vecchio, A .
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Astrophysics - High Energy Astrophysical Phenomena ,Astrophysics - Instrumentation and Methods for Astrophysics ,Astrophysics - Solar and Stellar Astrophysics - Abstract
We report on the high-precision timing of 42 radio millisecond pulsars (MSPs) observed by the European Pulsar Timing Array (EPTA). This EPTA Data Release 1.0 extends up to mid-2014 and baselines range from 7-18 years. It forms the basis for the stochastic gravitational-wave background, anisotropic background, and continuous-wave limits recently presented by the EPTA elsewhere. The Bayesian timing analysis performed with TempoNest yields the detection of several new parameters: seven parallaxes, nine proper motions and, in the case of six binary pulsars, an apparent change of the semi-major axis. We find the NE2001 Galactic electron density model to be a better match to our parallax distances (after correction from the Lutz-Kelker bias) than the M2 and M3 models by Schnitzeler (2012). However, we measure an average uncertainty of 80\% (fractional) for NE2001, three times larger than what is typically assumed in the literature. We revisit the transverse velocity distribution for a set of 19 isolated and 57 binary MSPs and find no statistical difference between these two populations. We detect Shapiro delay in the timing residuals of PSRs J1600$-$3053 and J1918$-$0642, implying pulsar and companion masses $m_p=1.22_{-0.35}^{+0.5} \text{M}_{\odot}$, $m_c = 0.21_{-0.04}^{+0.06} \text{M}_{\odot }$ and $m_p=1.25_{-0.4}^{+0.6} \text{M}_{\odot}$, $m_c = 0.23_{-0.05}^{+0.07} \text{M}_{\odot }$, respectively. Finally, we use the measurement of the orbital period derivative to set a stringent constraint on the distance to PSRs J1012$+$5307 and J1909$-$3744, and set limits on the longitude of ascending node through the search of the annual-orbital parallax for PSRs J1600$-$3053 and J1909$-$3744., Comment: 42 pages, 11 figures. Accepted for publication in MNRAS
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- 2016
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19. From Spin Noise to Systematics: Stochastic Processes in the First International Pulsar Timing Array Data Release
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Lentati, L., Shannon, R. M., Coles, W. A., Verbiest, J. P. W., van Haasteren, R., Ellis, J. A., Caballero, R. N., Manchester, R. N., Arzoumanian, Z., Babak, S., Bassa, C. G., Bhat, N. D. R., Brem, P., Burgay, M., Burke-Spolaor, S., Champion, D., Chatterjee, S., Cognard, I., Cordes, J. M., Dai, S., Demorest, P., Desvignes, G., Dolch, T., Ferdman, R. D., Fonseca, E., Gair, J. R., Gonzalez, M. E., Graikou, E., Guillemot, L., Hessels, J. W. T., Hobbs, G., Janssen, G. H., Jones, G., Karuppusamy, R., Keith, M., Kerr, M., Kramer, M., Lam, M. T., Lasky, P. D., Lassus, A., Lazarus, P., Lazio, T. J. W., Lee, K. J., Levin, L., Liu, K., Lynch, R. S., Madison, D. R., McKee, J., McLaughlin, M., McWilliams, S. T., Mingarelli, C. M. F., Nice, D. J., Osłowski, S., Pennucci, T. T., Perera, B. B. P., Perrodin, D., Petiteau, A., Possenti, A., Ransom, S. M., Reardon, D., Rosado, P. A., Sanidas, S. A., Sesana, A., Shaifullah, G., Siemens, X., Smits, R., Stairs, I., Stappers, B., Stinebring, D. R., Stovall, K., Swiggum, J., Taylor, S. R., Theureau, G., Tiburzi, C., Toomey, L., Vallisneri, M., van Straten, W., Vecchio, A., Wang, J. -B., Wang, Y., You, X. P., Zhu, W. W., and Zhu, X. -J.
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Astrophysics - Instrumentation and Methods for Astrophysics ,Astrophysics - High Energy Astrophysical Phenomena ,Astrophysics - Solar and Stellar Astrophysics ,General Relativity and Quantum Cosmology - Abstract
We analyse the stochastic properties of the 49 pulsars that comprise the first International Pulsar Timing Array (IPTA) data release. We use Bayesian methodology, performing model selection to determine the optimal description of the stochastic signals present in each pulsar. In addition to spin-noise and dispersion-measure (DM) variations, these models can include timing noise unique to a single observing system, or frequency band. We show the improved radio-frequency coverage and presence of overlapping data from different observing systems in the IPTA data set enables us to separate both system and band-dependent effects with much greater efficacy than in the individual PTA data sets. For example, we show that PSR J1643$-$1224 has, in addition to DM variations, significant band-dependent noise that is coherent between PTAs which we interpret as coming from time-variable scattering or refraction in the ionised interstellar medium. Failing to model these different contributions appropriately can dramatically alter the astrophysical interpretation of the stochastic signals observed in the residuals. In some cases, the spectral exponent of the spin noise signal can vary from 1.6 to 4 depending upon the model, which has direct implications for the long-term sensitivity of the pulsar to a stochastic gravitational-wave (GW) background. By using a more appropriate model, however, we can greatly improve a pulsar's sensitivity to GWs. For example, including system and band-dependent signals in the PSR J0437$-$4715 data set improves the upper limit on a fiducial GW background by $\sim 60\%$ compared to a model that includes DM variations and spin-noise only., Comment: 29 pages. 16 figures. Accepted for publication in MNRAS
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- 2016
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20. The International Pulsar Timing Array: First Data Release
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Verbiest, J. P. W., Lentati, L., Hobbs, G., van Haasteren, R., Demorest, P. B., Janssen, G. H., Wang, J. -B., Desvignes, G., Caballero, R. N., Keith, M. J., Champion, D. J., Arzoumanian, Z., Babak, S., Bassa, C. G., Bhat, N. D. R., Brazier, A., Brem, P., Burgay, M., Burke-Spolaor, S., Chamberlin, S. J., Chatterjee, S., Christy, B., Cognard, I., Cordes, J. M., Dai, S., Dolch, T., Ellis, J. A., Ferdman, R. D., Fonseca, E., Gair, J. R., Garver-Daniels, N. E., Gentile, P., Gonzalez, M. E., Graikou, E., Guillemot, L., Hessels, J. W. T., Jones, G., Karuppusamy, R., Kerr, M., Kramer, M., Lam, M. T., Lasky, P. D., Lassus, A., Lazarus, P., Lazio, T. J. W., Lee, K. J., Levin, L., Liu, K., Lynch, R. S., Lyne, A. G., Mckee, J., McLaughlin, M. A., McWilliams, S. T., Madison, D. R., Manchester, R. N., Mingarelli, C. M. F., Nice, D. J., Oslowski, S., Palliyaguru, N. T., Pennucci, T. T., Perera, B. B. P., Perrodin, D., Possenti, A., Petiteau, A., Ransom, S. M., Reardon, D., Rosado, P. A., Sanidas, S. A., Sesana, A., Shaifullah, G., Shannon, R. M., Siemens, X., Simon, J., Smits, R., Spiewak, R., Stairs, I. H., Stappers, B. W., Stinebring, D. R., Stovall, K., Swiggum, J. K., Taylor, S. R., Theureau, G., Tiburzi, C., Toomey, L., Vallisneri, M., van Straten, W., Vecchio, A., Wang, Y., Wen, L., You, X. P., Zhu, W. W., and Zhu, X. -J.
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Astrophysics - Instrumentation and Methods for Astrophysics - Abstract
The highly stable spin of neutron stars can be exploited for a variety of (astro-)physical investigations. In particular arrays of pulsars with rotational periods of the order of milliseconds can be used to detect correlated signals such as those caused by gravitational waves. Three such "Pulsar Timing Arrays" (PTAs) have been set up around the world over the past decades and collectively form the "International" PTA (IPTA). In this paper, we describe the first joint analysis of the data from the three regional PTAs, i.e. of the first IPTA data set. We describe the available PTA data, the approach presently followed for its combination and suggest improvements for future PTA research. Particular attention is paid to subtle details (such as underestimation of measurement uncertainty and long-period noise) that have often been ignored but which become important in this unprecedentedly large and inhomogeneous data set. We identify and describe in detail several factors that complicate IPTA research and provide recommendations for future pulsar timing efforts. The first IPTA data release presented here (and available online) is used to demonstrate the IPTA's potential of improving upon gravitational-wave limits placed by individual PTAs by a factor of ~2 and provides a 2-sigma limit on the dimensionless amplitude of a stochastic GWB of 1.7x10^{-15} at a frequency of 1 yr^{-1}. This is 1.7 times less constraining than the limit placed by (Shannon et al. 2015), due mostly to the more recent, high-quality data they used., Comment: 25 pages, 6 tables, 5 figures. Accepted for publication in MNRAS
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- 2016
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21. Organ dysfunction, injury and failure in acute heart failure: from pathophysiology to diagnosis and management. A review on behalf of the Acute Heart Failure Committee of the Heart Failure Association (HFA) of the European Society of Cardiology (ESC).
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Harjola, Veli-Pekka, Mullens, Wilfried, Banaszewski, Marek, Bauersachs, Johann, Brunner-La Rocca, Hans-Peter, Chioncel, Ovidiu, Collins, Sean, Doehner, Wolfram, Filippatos, Gerasimos, Flammer, Andreas, Fuhrmann, Valentin, Lainscak, Mitja, Lassus, Johan, Legrand, Matthieu, Masip, Josep, Mueller, Christian, Papp, Zoltán, Parissis, John, Platz, Elke, Rudiger, Alain, Ruschitzka, Frank, Schäfer, Andreas, Seferovic, Petar, Skouri, Hadi, Yilmaz, Mehmet, and Mebazaa, Alexandre
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Heart failure ,Multiple organ failure ,Venous congestion ,Acute Disease ,Cardiology ,Diagnostic Imaging ,Disease Management ,Europe ,Heart Failure ,Humans ,Multiple Organ Failure ,Societies ,Medical - Abstract
Organ injury and impairment are commonly observed in patients with acute heart failure (AHF), and congestion is an essential pathophysiological mechanism of impaired organ function. Congestion is the predominant clinical profile in most patients with AHF; a smaller proportion presents with peripheral hypoperfusion or cardiogenic shock. Hypoperfusion further deteriorates organ function. The injury and dysfunction of target organs (i.e. heart, lungs, kidneys, liver, intestine, brain) in the setting of AHF are associated with increased risk for mortality. Improvement in organ function after decongestive therapies has been associated with a lower risk for post-discharge mortality. Thus, the prevention and correction of organ dysfunction represent a therapeutic target of interest in AHF and should be evaluated in clinical trials. Treatment strategies that specifically prevent, reduce or reverse organ dysfunction remain to be identified and evaluated to determine if such interventions impact mortality, morbidity and patient-centred outcomes. This paper reflects current understanding among experts of the presentation and management of organ impairment in AHF and suggests priorities for future research to advance the field.
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- 2017
22. Le modèle drosophile et la recherche en cancérologie
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Falconi, Jennifer, Strobel, Katrin, Djiane, Alexandre, and Lassus, Patrice
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L’augmentation de l’incidence des cancers à l’échelle planétaire fait de cette pathologie la deuxième cause de décès au monde. Au cours des dernières décennies, de nombreux progrès tant au niveau des connaissances fondamentales que dans la découverte de nouvelles approches thérapeutiques ont été réalisés. Cependant, la diversité des mécanismes liés au développement tumoral nécessite l’utilisation d’outils de recherche sophistiqués et adaptés afin de mieux appréhender cette complexité. Parmi ceux-ci, la drosophile (Drosophila melanogaster) représente un modèle génétique de choix présentant de nombreux avantages d’un point de vue pratique et conceptuel. En effet, la conservation des gènes impliqués dans le cancer entre cet insecte et les mammifères place la drosophile comme un outil de recherche important pour la compréhension des mécanismes fondamentaux régissant la tumorigenèse et l’identification de nouvelles cibles thérapeutiques. Cette revue se propose de décrire ce modèle original et de discuter son intérêt pour l’étude de la biologie des cancers.
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- 2024
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23. La Orquesta Participativa: un lugar para la educación y la práctica de la alteridad
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Marie-Pierre Lassus
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orquesta ,participación ,empatía ,escucha ,entorno ,proceso educativo ,Education ,History of education ,LA5-2396 - Abstract
El artículo se centra en la noción de orquesta participativa (OP), que reúne a músicos y no músicos de todas las edades y orígenes para crear un sonido común. Esencialmente inclusiva, la OP permite practicar la escucha y la empatía experimentando con nuevas formas de convivencia, incluso en los lugares de marginalidad de nuestras sociedades contemporáneas (prisiones). Nos preguntamos en el artículo por el significado de la música en la vida humana, como arte no verbal y lenguaje sensorial; su importancia en la educación, centrada hoy más en la lógica racional como fundamento de la vida mental al servicio de la economía de mercado y no en la sensibilidad y la imaginación, los valores dominantes del ser humano. Mostraremos cómo el desarrollo de la conciencia musical puede ser un proceso educativo a través de la participación como fuerza social y expresión de una sensibilidad que la música moldea despertando el deseo de aprender. Lo que conduce a la emancipación, el verdadero objetivo de la educación.
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- 2022
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24. The noise properties of 42 millisecond pulsars from the European Pulsar Timing Array and their impact on gravitational wave searches
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Caballero, R. N., Lee, K. J., Lentati, L., Desvignes, G., Champion, D. J., Verbiest, J. P. W., Janssen, G. H., Stappers, B. W., Kramer, M., Lazarus, P., Possenti, A., Tiburzi, C., Perrodin, D., Osłowski, S., Babak, S., Bassa, C. G., Brem, P., Burgay, M., Cognard, I., Gair, J. R., Graikou, E., Guillemot, L., Hessels, J. W. T., Karuppusamy, R., Lassus, A., Liu, K., McKee, J., Mingarelli, C. M. F., Petiteau, A., Purver, M. B., Rosado, P. A., Sanidas, S., Sesana, A., Shaifullah, G., Smits, R., Taylor, S. R., Theureau, G., van Haasteren, R., and Vecchio, A.
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Astrophysics - Instrumentation and Methods for Astrophysics ,Astrophysics - Cosmology and Nongalactic Astrophysics - Abstract
The sensitivity of Pulsar Timing Arrays to gravitational waves depends on the noise present in the individual pulsar timing data. Noise may be either intrinsic or extrinsic to the pulsar. Intrinsic sources of noise will include rotational instabilities, for example. Extrinsic sources of noise include contributions from physical processes which are not sufficiently well modelled, for example, dispersion and scattering effects, analysis errors and instrumental instabilities. We present the results from a noise analysis for 42 millisecond pulsars (MSPs) observed with the European Pulsar Timing Array. For characterising the low-frequency, stochastic and achromatic noise component, or "timing noise", we employ two methods, based on Bayesian and frequentist statistics. For 25 MSPs, we achieve statistically significant measurements of their timing noise parameters and find that the two methods give consistent results. For the remaining 17 MSPs, we place upper limits on the timing noise amplitude at the 95% confidence level. We additionally place an upper limit on the contribution to the pulsar noise budget from errors in the reference terrestrial time standards (below 1%), and we find evidence for a noise component which is present only in the data of one of the four used telescopes. Finally, we estimate that the timing noise of individual pulsars reduces the sensitivity of this data set to an isotropic, stochastic GW background by a factor of >9.1 and by a factor of >2.3 for continuous GWs from resolvable, inspiralling supermassive black-hole binaries with circular orbits., Comment: Accepted for publication by the Monthly Notices of the Royal Astronomical Society
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- 2015
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25. European Pulsar Timing Array Limits on Continuous Gravitational Waves from Individual Supermassive Black Hole Binaries
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Babak, Stanislav, Petiteau, Antoine, Sesana, Alberto, Brem, Patrick, Rosado, Pablo A., Taylor, Stephen R., Lassus, Antoine, Hessels, Jason W. T., Bassa, Cees G., Burgay, Marta, Caballero, R. Nicolas, Champion, David J., Cognard, Ismael, Desvignes, Gregory, Gair, Jonathan R., Guillemot, Lucas, Janssen, Gemma H., Karuppusamy, Ramesh, Kramer, Michael, Lazarus, Patrick, Lee, K. J., Lentati, Lindley, Liu, Kuo, Mingarelli, Chiara M. F., Oslowski, Stefan, Perrodin, Delphine, Possenti, Andrea, Purver, Mark B., Sanidas, Sotiris, Smits, Roy, Stappers, Ben, Theureau, Gilles, Tiburzi, Caterina, van Haasteren, Rutger, Vecchio, Alberto, and Verbiest, Joris P. W.
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Astrophysics - Cosmology and Nongalactic Astrophysics ,Astrophysics - Astrophysics of Galaxies ,Astrophysics - Instrumentation and Methods for Astrophysics ,General Relativity and Quantum Cosmology - Abstract
We have searched for continuous gravitational wave (CGW) signals produced by individually resolvable, circular supermassive black hole binaries (SMBHBs) in the latest EPTA dataset, which consists of ultra-precise timing data on 41 millisecond pulsars. We develop frequentist and Bayesian detection algorithms to search both for monochromatic and frequency-evolving systems. None of the adopted algorithms show evidence for the presence of such a CGW signal, indicating that the data are best described by pulsar and radiometer noise only. Depending on the adopted detection algorithm, the 95\% upper limit on the sky-averaged strain amplitude lies in the range $6\times 10^{-15}10^9$M$_\odot$ out to a distance of about 25Mpc, and with $\cal{M}_c>10^{10}$M$_\odot$ out to a distance of about 1Gpc ($z\approx0.2$). We show that state-of-the-art SMBHB population models predict $<1\%$ probability of detecting a CGW with the current EPTA dataset, consistent with the reported non-detection. We stress, however, that PTA limits on individual CGW have improved by almost an order of magnitude in the last five years. The continuing advances in pulsar timing data acquisition and analysis techniques will allow for strong astrophysical constraints on the population of nearby SMBHBs in the coming years., Comment: 16 pages, 11 figures, accepted for publication in MNRAS
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- 2015
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26. Limits on anisotropy in the nanohertz stochastic gravitational-wave background
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Taylor, S. R., Mingarelli, C. M. F., Gair, J. R., Sesana, A., Theureau, G., Babak, S., Bassa, C. G., Brem, P., Burgay, M., Caballero, R. N., Champion, D. J., Cognard, I., Desvignes, G., Guillemot, L., Hessels, J. W. T., Janssen, G. H., Karuppusamy, R., Kramer, M., Lassus, A., Lazarus, P., Lentati, L., Liu, K., Osłowski, S., Perrodin, D., Petiteau, A., Possenti, A., Purver, M. B., Rosado, P. A., Sanidas, S. A., Smits, R., Stappers, B., Tiburzi, C., van Haasteren, R., Vecchio, A., and Verbiest, J. P. W.
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Astrophysics - High Energy Astrophysical Phenomena ,Astrophysics - Cosmology and Nongalactic Astrophysics ,General Relativity and Quantum Cosmology - Abstract
The paucity of observed supermassive black hole binaries (SMBHBs) may imply that the gravitational wave background (GWB) from this population is anisotropic, rendering existing analyses sub-optimal. We present the first constraints on the angular distribution of a nanohertz stochastic GWB from circular, inspiral-driven SMBHBs using the $2015$ European Pulsar Timing Array data [Desvignes et al. (in prep.)]. Our analysis of the GWB in the $\sim 2 - 90$ nHz band shows consistency with isotropy, with the strain amplitude in $l>0$ spherical harmonic multipoles $\lesssim 40\%$ of the monopole value. We expect that these more general techniques will become standard tools to probe the angular distribution of source populations., Comment: 6 pages, 2 figures, 1 table. Accepted for publication in Physical Review Letters
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- 2015
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27. European Pulsar Timing Array Limits On An Isotropic Stochastic Gravitational-Wave Background
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Lentati, Lindley, Taylor, Stephen R., Mingarelli, Chiara M. F., Sesana, Alberto, Sanidas, Sotiris A., Vecchio, Alberto, Caballero, R. Nicolas, Lee, K. J., van Haasteren, Rutger, Babak, Stanislav, Bassa, Cees G., Brem, Patrick, Burgay, Marta, Champion, David J., Cognard, Ismael, Desvignes, Gregory, Gair, Jonathan R., Guillemot, Lucas, Hessels, Jason W. T., Janssen, Gemma H., Karuppusamy, Ramesh, Kramer, Michael, Lassus, Antoine, Lazarus, Patrick, Liu, Kuo, Osłowski, Stefan, Perrodin, Delphine, Petiteau, Antoine, Possenti, Andrea, Purver, Mark B., Rosado, Pablo A., Smits, Roy, Stappers, Ben, Theureau, Gilles, Tiburzi, Caterina, and Verbiest, Joris P. W.
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Astrophysics - Cosmology and Nongalactic Astrophysics ,Astrophysics - Instrumentation and Methods for Astrophysics - Abstract
We present new limits on an isotropic stochastic gravitational-wave background (GWB) using a six pulsar dataset spanning 18 yr of observations from the 2015 European Pulsar Timing Array data release. Performing a Bayesian analysis, we fit simultaneously for the intrinsic noise parameters for each pulsar, along with common correlated signals including clock, and Solar System ephemeris errors, obtaining a robust 95$\%$ upper limit on the dimensionless strain amplitude $A$ of the background of $A<3.0\times 10^{-15}$ at a reference frequency of $1\mathrm{yr^{-1}}$ and a spectral index of $13/3$, corresponding to a background from inspiralling super-massive black hole binaries, constraining the GW energy density to $\Omega_\mathrm{gw}(f)h^2 < 1.1\times10^{-9}$ at 2.8 nHz. We also present limits on the correlated power spectrum at a series of discrete frequencies, and show that our sensitivity to a fiducial isotropic GWB is highest at a frequency of $\sim 5\times10^{-9}$~Hz. Finally we discuss the implications of our analysis for the astrophysics of supermassive black hole binaries, and present 95$\%$ upper limits on the string tension, $G\mu/c^2$, characterising a background produced by a cosmic string network for a set of possible scenarios, and for a stochastic relic GWB. For a Nambu-Goto field theory cosmic string network, we set a limit $G\mu/c^2<1.3\times10^{-7}$, identical to that set by the {\it Planck} Collaboration, when combining {\it Planck} and high-$\ell$ Cosmic Microwave Background data from other experiments. For a stochastic relic background we set a limit of $\Omega^\mathrm{relic}_\mathrm{gw}(f)h^2<1.2 \times10^{-9}$, a factor of 9 improvement over the most stringent limits previously set by a pulsar timing array., Comment: 24 pages, 5 tables, 17 figures
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- 2015
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28. Mortality risk prediction in elderly patients with cardiogenic shock: results from the CardShock study
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Mari Hongisto, Johan Lassus, Tuukka Tarvasmäki, Alessandro Sionis, Jordi Sans‐Rosello, Heli Tolppanen, Anu Kataja, Toni Jäntti, Tuija Sabell, Matias Greve Lindholm, Marek Banaszewski, Jose Silva Cardoso, John Parissis, Salvatore Di Somma, Valentina Carubelli, Raija Jurkko, Josep Masip, Veli‐Pekka Harjola, and for the CardShock Study Investigators and the GREAT Network
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Cardiogenic shock ,Elderly ,Risk prediction ,Biomarker ,GDF‐15 ,sST2 ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
Abstract Aims This study aimed to assess the utility of contemporary clinical risk scores and explore the ability of two biomarkers [growth differentiation factor‐15 (GDF‐15) and soluble ST2 (sST2)] to improve risk prediction in elderly patients with cardiogenic shock. Methods and results Patients (n = 219) from the multicentre CardShock study were grouped according to age (elderly ≥75 years and younger). Characteristics, management, and outcome between the groups were compared. The ability of the CardShock risk score and the IABP‐SHOCK II score to predict in‐hospital mortality and the additional value of GDF‐15 and sST2 to improve risk prediction in the elderly was evaluated. The elderly constituted 26% of the patients (n = 56), with a higher proportion of women (41% vs. 21%, P
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- 2021
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29. MAGI1 inhibits the AMOTL2/p38 stress pathway and prevents luminal breast tumorigenesis
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Diala Kantar, Emilie Bousquet Mur, Maicol Mancini, Vera Slaninova, Yezza Ben Salah, Luca Costa, Elodie Forest, Patrice Lassus, Charles Géminard, Florence Boissière-Michot, Béatrice Orsetti, Charles Theillet, Jacques Colinge, Christine Benistant, Antonio Maraver, Lisa Heron-Milhavet, and Alexandre Djiane
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Medicine ,Science - Abstract
Abstract Alterations to cell polarization or to intercellular junctions are often associated with epithelial cancer progression, including breast cancers (BCa). We show here that the loss of the junctional scaffold protein MAGI1 is associated with bad prognosis in luminal BCa, and promotes tumorigenesis. E-cadherin and the actin binding scaffold AMOTL2 accumulate in MAGI1 deficient cells which are subjected to increased stiffness. These alterations are associated with low YAP activity, the terminal Hippo-pathway effector, but with an elevated ROCK and p38 Stress Activated Protein Kinase activities. Blocking ROCK prevented p38 activation, suggesting that MAGI1 limits p38 activity in part through releasing actin strength. Importantly, the increased tumorigenicity of MAGI1 deficient cells is rescued in the absence of AMOTL2 or after inhibition of p38, demonstrating that MAGI1 acts as a tumor-suppressor in luminal BCa by inhibiting an AMOTL2/p38 stress pathway.
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- 2021
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30. Predictive value of plasma proenkephalin and neutrophil gelatinase-associated lipocalin in acute kidney injury and mortality in cardiogenic shock
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Toni Jäntti, Tuukka Tarvasmäki, Veli-Pekka Harjola, Kari Pulkki, Heidi Turkia, Tuija Sabell, Heli Tolppanen, Raija Jurkko, Mari Hongisto, Anu Kataja, Alessandro Sionis, Jose Silva-Cardoso, Marek Banaszewski, Salvatore DiSomma, Alexandre Mebazaa, Mikko Haapio, Johan Lassus, and for the CardShock investigators
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Cardiogenic shock ,Acute kidney injury ,AKI ,Mortality ,Prognosis ,Proenkephalin ,Medical emergencies. Critical care. Intensive care. First aid ,RC86-88.9 - Abstract
Abstract Background Acute kidney injury (AKI) is a frequent form of organ injury in cardiogenic shock. However, data on AKI markers such as plasma proenkephalin (P-PENK) and neutrophil gelatinase-associated lipocalin (P-NGAL) in cardiogenic shock populations are lacking. The objective of this study was to assess the ability of P-PENK and P-NGAL to predict acute kidney injury and mortality in cardiogenic shock. Results P-PENK and P-NGAL were measured at different time points between baseline and 48 h in 154 patients from the prospective CardShock study. The outcomes assessed were AKI defined by an increase in creatinine within 48 h and all-cause 90-day mortality. Mean age was 66 years and 26% were women. Baseline levels of P-PENK and P-NGAL (median [interquartile range]) were 99 (71–150) pmol/mL and 138 (84–214) ng/mL. P-PENK > 84.8 pmol/mL and P-NGAL > 104 ng/mL at baseline were identified as optimal cut-offs for AKI prediction and independently associated with AKI (adjusted HRs 2.2 [95% CI 1.1–4.4, p = 0.03] and 2.8 [95% CI 1.2–6.5, p = 0.01], respectively). P-PENK and P-NGAL levels at baseline were also associated with 90-day mortality. For patients with oliguria 6 h before study enrollment, 90-day mortality differed significantly between patients with low and high P-PENK/P-NGAL at baseline (5% vs. 68%, p 105.7 pmol/L and P-NGAL24h > 151 ng/mL had unadjusted hazard ratios of 5.6 (95% CI 3.1–10.7, p
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- 2021
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31. Microbubble formulation influences inflammatory response to focused ultrasound exposure in the brain
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Dallan McMahon, Anne Lassus, Emmanuel Gaud, Victor Jeannot, and Kullervo Hynynen
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Medicine ,Science - Abstract
Abstract Focused ultrasound and microbubble (FUS + MB)-mediated blood–brain barrier (BBB) permeability enhancement can facilitate targeted brain-drug delivery. While controlling the magnitude of BBB permeability enhancement is necessary to limit tissue damage, little work has attempted to decouple these concepts. This work investigated the relationship between BBB permeability enhancement and the relative transcription of inflammatory mediators 4 h following sonication. Three microbubble formulations, Definity, BG8774, and MSB4, were compared, with the dose of each formulation normalized to gas volume. While changes in the transcription of key proinflammatory mediators, such as Il1b, Ccl2, and Tnf, were correlated to the magnitude of BBB permeability enhancement, these correlations were not independent of microbubble formulation; microbubble size distribution may play an important role, as linear regression analyses of BBB permeability magnitude versus differential gene expression for these proinflammatory mediators revealed significantly greater slopes for MSB4, a monodisperse microbubble with mean diameter of 4 μm, compared to Definity or BG8774, both polydisperse microbubbles with mean diameters below 2 μm. Additionally, the function of an acoustic feedback control algorithm, based on the detection threshold of ultraharmonic emissions, was assessed. While this control strategy was effective in limiting both wideband emissions and red blood cell extravasation, microbubble formulation was found to influence the magnitude of BBB leakage and correlations to acoustic emissions. This work demonstrates that while the initial magnitude of FUS + MB-mediated BBB permeability enhancement has a clear influence on the subsequent inflammatory responses, microbubble characteristics influence these relationships and must also be considered.
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- 2020
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32. Ruotsinkielisten kirjoittamisen käytänteitä: tapaustutkimus kahdesta yrityksestä Helsingin ja Vaasan seuduilla
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Jannika Lassus and Johanna Tanner
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kaksikielisyys ,kirjoittaminen ,monikielisyys ,ruotsin kieli ,suomi toisena kotimaisena kielenä ,tekstikäytänteet ,yritysviestintä ,Communication. Mass media ,P87-96 - Abstract
In this article we present results from a case study of five business professionals and their workplace literacy practices and literacy events. The five interviewees are Swedish-speaking Finns, part of a 5 % minority in Finland, and they live both in the Helsinki capital area and in the Vaasa region. The business professionals work for two anonymized companies: Delta, a global business consultant company, and Zeta, a Scandinavian bank. Our theoretical framework is New literacy studies (Barton 2007/1994). All the interviewees use at least three languages at their work: their mother tongue Swedish, their second language Finnish (both are national languages in Finland), and English. High skills of both national languages are needed to perform the work tasks, and national languages are used more than English. The writing tasks are diverse and connected to the specialized work tasks of each employee, with the exception of e-mails that all interviewees write daily. The language choices are influenced by several factors, among them the language preferences of the recipient and the task at hand. Evidently, the companies have managed to make the best use of the language skills of the interviewees.
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- 2020
33. From spin noise to systematics: stochastic processes in the first International Pulsar Timing Array data release
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Lentati, L, Shannon, RM, Coles, WA, Verbiest, JPW, van Haasteren, R, Ellis, JA, Caballero, RN, Manchester, RN, Arzoumanian, Z, Babak, S, Bassa, CG, Bhat, NDR, Brem, P, Burgay, M, Burke-Spolaor, S, Champion, D, Chatterjee, S, Cognard, I, Cordes, JM, Dai, S, Demorest, P, Desvignes, G, Dolch, T, Ferdman, RD, Fonseca, E, Gair, JR, Gonzalez, ME, Graikou, E, Guillemot, L, Hessels, JWT, Hobbs, G, Janssen, GH, Jones, G, Karuppusamy, R, Keith, M, Kerr, M, Kramer, M, Lam, MT, Lasky, PD, Lassus, A, Lazarus, P, Lazio, TJW, Lee, KJ, Levin, L, Liu, K, Lynch, RS, Madison, DR, McKee, J, McLaughlin, M, McWilliams, ST, Mingarelli, CMF, Nice, DJ, Osłowski, S, Pennucci, TT, Perera, BBP, Perrodin, D, Petiteau, A, Possenti, A, Ransom, SM, Reardon, D, Rosado, PA, Sanidas, SA, Sesana, A, Shaifullah, G, Siemens, X, Smits, R, Stairs, I, Stappers, B, Stinebring, DR, Stovall, K, Swiggum, J, Taylor, SR, Theureau, G, Tiburzi, C, Toomey, L, Vallisneri, M, van Straten, W, Vecchio, A, Wang, J-B, Wang, Y, You, XP, Zhu, WW, and Zhu, X-J
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methods: data analysis ,pulsars: general ,Astronomical and Space Sciences ,Astronomy & Astrophysics - Abstract
We analyse the stochastic properties of the 49 pulsars that comprise the first International Pulsar Timing Array (IPTA) data release. We use Bayesian methodology, performing model selection to determine the optimal description of the stochastic signals present in each pulsar. In addition to spin-noise and dispersion-measure (DM) variations, these models can include timing noise unique to a single observing system, or frequency band. We show the improved radio-frequency coverage and presence of overlapping data from different observing systems in the IPTA data set enables us to separate both system and band-dependent effects with much greater efficacy than in the individual pulsar timing array (PTA) data sets. For example, we show that PSR J1643-1224 has, in addition to DM variations, significant band-dependent noise that is coherent between PTAs which we interpret as coming from time-variable scattering or refraction in the ionized interstellar medium. Failing to model these different contributions appropriately can dramatically alter the astrophysical interpretation of the stochastic signals observed in the residuals. In some cases, the spectral exponent of the spin-noise signal can vary from 1.6 to 4 depending upon the model, which has direct implications for the long-term sensitivity of the pulsar to a stochastic gravitational-wave (GW) background. By using a more appropriate model, however, we can greatly improve a pulsar's sensitivity to GWs. For example, including system and band-dependent signals in the PSR J0437-4715 data set improves the upper limit on a fiducial GW background by ~60 per cent compared to a model that includes DM variations and spin-noise only.
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- 2016
34. CT‐IGFBP‐4 as a novel prognostic biomarker in acute heart failure
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Alexey A. Konev, Alexey V. Kharitonov, Fedor N. Rozov, Evgeny P. Altshuler, Daria V. Serebryanaya, Johan Lassus, Veli‐Pekka Harjola, Alexey G. Katrukha, and Alexander B. Postnikov
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Heart failure ,Biomarker ,Prognostic value ,Insulin‐like growth factor binding protein 4 (IGFBP‐4) fragments ,Pregnancy‐associated plasma protein‐A (PAPP‐A) ,N‐terminal pro brain natriuretic peptide (NT‐proBNP) ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
Abstract Aims Insulin‐like growth factor binding protein‐4 (IGFBP‐4) fragments have been shown to predict the risk of major adverse cardiovascular events, including segment‐elevation myocardial infarction, in patients with acute coronary syndrome. We evaluated the prognostic value of the carboxy‐terminal fragment of IGFBP‐4 (CT‐IGFBP‐4) for all‐cause mortality in emergency room patients with acute heart failure (AHF). Methods and results CT‐IGFBP‐4, N‐terminal pro brain natriuretic peptide (NT‐proBNP), and C‐reactive protein (CRP) were measured at admission from the lithium‐heparin plasma of 156 patients with AHF. All‐cause mortality was recorded for 1 year. Receiver operator characteristic (ROC) curves, Kaplan–Meier, and Cox proportional hazard ratio analyses were performed to evaluate the prognostic value of the various clinical variables, CT‐IGFBP‐4, NT‐proBNP, CRP, and their combinations. During 1 year of follow‐up, 52 (33.3%) patients died. CT‐IGFBP‐4 only weakly correlated with NT‐proBNP (Pearson correlation coefficient r = 0.16, P = 0.044) and did not correlate with CRP (r = 0.08, P = 0.35), emphasizing the different nature of these biomarkers. The receiver operator characteristic area under the curve (ROC AUC) of CT‐IGFBP‐4 for the prediction of all‐cause mortality (0.727) was significantly higher than that of NT‐proBNP (0.680, P = 0.045) and CRP (0.669, P = 0.016). The combination of CT‐IGFBP‐4, NT‐proBNP, and CRP predicted mortality significantly better (ROC AUC = 0.788) than any of the biomarkers alone (P
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- 2020
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35. Prognostic impact of angiographic findings, procedural success, and timing of percutaneous coronary intervention in cardiogenic shock
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Tuija Sabell, Marek Banaszewski, Johan Lassus, Markku S. Nieminen, Heli Tolppanen, Toni Jäntti, Anu Kataja, Mari Hongisto, Lars Køber, Alessandro Sionis, John Parissis, Tuukka Tarvasmäki, Veli‐Pekka Harjola, and Raija Jurkko
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Cardiogenic shock ,Acute coronary syndrome ,Percutaneous coronary intervention ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
Abstract Aims Urgent revascularization is the mainstay of treatment in acute coronary syndrome (ACS) related cardiogenic shock (CS). The aim was to investigate the association of angiographic results with 90‐day mortality. Procedural complications of percutaneous coronary intervention (PCI) were also examined. Methods and results This CardShock (NCT01374867) substudy included 158 patients with ACS aetiology and data on coronary angiography and complications during PCI procedure. Survival analysis was conducted with Kaplan–Meier curves and Cox regression analysis. Median age was 67 ± 11 years, and 77% were men. During 90‐day follow‐up, 66 (42%) patients died. Patients with one‐vessel disease (n = 49) had lower mortality than patients with two‐vessel (n = 59) or three‐vessel (n = 50) disease (25% vs. 48% vs. 52%, P = 0.011). Successful revascularization [Thrombolysis in Myocardial Infarction (TIMI) Flow 3 post‐PCI) was achieved more often in survivors than non‐survivors (81% vs. 60%, P = 0.019). The median symptom‐to‐balloon time was 340 (196–660) minutes, with no difference between survivors and non‐survivors. In multivariable mortality analysis, multivessel disease (HR 2.59, CI95% 1.29–5.18) and TIMI flow
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- 2020
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36. L'orchestre: un milieu de convivence etd'éducation au sein des prisons
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Marie-Pierre Lassus
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orquesta ,medio ambiente ,prisión ,educación ,convivencia ,Education ,Special aspects of education ,LC8-6691 - Abstract
El objetivo es mostrar cómo la orquesta puede ser un lugar de educación capaz de devolver la confianza y la autoestima a los detenidos y mejorar la convivencia en las cárceles. El estudio se basa en la metodología de investigación-acción (cualitativa-cuantitativa) y de investiga ción-creación para mostrar que los valores aprendidos en la orquesta (escucha, responsabilidad, disciplina, solidaridad, convivencia) son aplicables en la vida y pueden iniciar procesos de transforma ción introduciéndose entre sí en nuevas posibilidades que facilitan la reintegra ción a la vida social. En el contexto de las prisiones francesas, caracterizadas hoy por un hacinamiento creciente que genera conflictos y violencia, o el de las prisiones venezolanas donde estos problemas son recurrentes, la creación de orquestas es un proyecto político, dirigido a establecer un espacio común y personal donde los dete nidos puedan interactuar en estos lugares separación y fragmentación de los espacios y tiempos. En conclusión, la educación no puede tener lugar sin la creación de un ambiente de convivencia (en el sentido dado por el movimiento internacional de Convivencia) donde se afirman los principios de individualiza ción y oposición creativa, que están en la base de cualquier democracia, así como la orquesta concebida como una micro-so ciedad.
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- 2020
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37. P62 accumulates through neuroanatomical circuits in response to tauopathy propagation
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Blaudin de Thé, François-Xavier, Lassus, Benjamin, Schaler, Ari W., Fowler, Stephanie L., Goulbourne, Chris N., Jeggo, Ross, Mannoury la Cour, Clotilde, Millan, Mark J., and Duff, Karen E.
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- 2021
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38. Reply to: High levels of plasma biomarkers at 24 h were found to be strong predictors of 90-day mortality: beware of some potential confounders!
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Jäntti, Toni, Harjola, Veli-Pekka, Haapio, Mikko, and Lassus, Johan
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- 2021
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39. MAGI1 inhibits the AMOTL2/p38 stress pathway and prevents luminal breast tumorigenesis
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Kantar, Diala, Mur, Emilie Bousquet, Mancini, Maicol, Slaninova, Vera, Salah, Yezza Ben, Costa, Luca, Forest, Elodie, Lassus, Patrice, Géminard, Charles, Boissière-Michot, Florence, Orsetti, Béatrice, Theillet, Charles, Colinge, Jacques, Benistant, Christine, Maraver, Antonio, Heron-Milhavet, Lisa, and Djiane, Alexandre
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- 2021
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40. Long-term quality of life after surgery of head and neck cancer with microvascular reconstruction: a prospective study with 4.9-years follow-up
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Kainulainen, Satu, Koivusalo, A. M., Roine, R. P., Wilkman, T., Sintonen, H., Törnwall, J., Thorén, H., and Lassus, P.
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- 2020
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41. Analysis of the first IPTA Mock Data Challenge by the EPTA timing data analysis working group
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van Haasteren, Rutger, Mingarelli, Chiara M. F., Vecchio, Alberto, and Lassus, Antoine
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Astrophysics - Instrumentation and Methods for Astrophysics - Abstract
This is a summary of the methods we used to analyse the first IPTA Mock Data Challenge (MDC), and the obtained results. We have used a Bayesian analysis in the time domain, accelerated using the recently developed ABC-method which consists of a form of lossy linear data compression. The TOAs were first processed with Tempo2, where the design matrix was extracted for use in a subsequent Bayesian analysis. We used different noise models to analyse the datasets: no red noise, red noise the same for all pulsars, and individual red noise per pulsar. We sampled from the likelihood with four different samplers: "emcee", "t-walk", "Metropolis-Hastings", and "pyMultiNest". All but emcee agreed on the final result, with emcee failing due to artefacts of the high-dimensionality of the problem. An interesting issue we ran into was that the prior of all the 36 (red) noise amplitudes strongly affects the results. A flat prior in the noise amplitude biases the inferred GWB amplitude, whereas a flat prior in log-amplitude seems to work well. This issue is only apparent when using a noise model with individually modelled red noise for all pulsars. Our results for the blind challenges are in good agreement with the injected values. For the GWB amplitudes we found h_c = 1.03 +/- 0.11 [10^{-14}], h_c = 5.70 +/- 0.35 [10^{-14}], and h_c = 6.91 +/- 1.72 [10^{-15}], and for the GWB spectral index we found gamma = 4.28 +/- 0.20, gamma = 4.35 +/- 0.09, and gamma = 3.75 +/- 0.40. We note that for closed challenge 3 there was quite some covariance between the signal and the red noise: if we constrain the GWB spectral index to the usual choice of gamma = 13/3, we obtain the estimates: h_c = 10.0 +/- 0.64 [10^{-15}], h_c = 56.3 +/- 2.42 [10^{-15}], and h_c = 4.83 +/- 0.50 [10^{-15}], with one-sided 2 sigma upper-limits of: h_c <= 10.98 [10^{-15}], h_c <= 60.29 [10^{-15}], and h_c <= 5.65 [10^{-15}]., Comment: 10 pages, 5 figures
- Published
- 2013
42. Optimierung des Verbrauchs- und Emissionsverhaltens dieselhybridischer Antriebskonzepte mithilfe einer Gesamtsystem-Simulation
- Author
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Ley, Christoph, Steiner, R., Macri-Lassus, P., Mauß, F., Liebl, Johannes, editor, and Rainer, Gotthard, editor
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- 2018
- Full Text
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43. 36. FACIAL EXPRESSION AFTER FACE TRANSPLANT: THE FIRST INTERNATIONAL FACE TRANSPLANT COHORT COMPARISON
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Miguel I. Dorante, MD, MBE, Alice T. Wang, BS, Branislav Kollar, MD, Andrew J. Lindford, MD, Emma-Lotta Kiukas, MD, Mustafa G. Ertosun, MD, PhD, Ömer Özkan, MD, Özlenen Özkan, MD, Patrik Lassus, MD, and Bohdan Pomahac, MD
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Surgery ,RD1-811 - Published
- 2022
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- View/download PDF
44. Stripping a debris disk by close stellar encounters in an open stellar cluster
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Lestrade, Jean-Francois, Morey, Etienne, Lassus, Antoine, and Phou, Naron
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Astrophysics - Solar and Stellar Astrophysics ,Astrophysics - Earth and Planetary Astrophysics - Abstract
A debris disk is a constituent of any planetary system surrounding a main sequence star. We study whether close stellar encounters can disrupt and strip a debris disk of its planetesimals in the expanding open cluster of its birth with a decreasing star number density over 100 Myrs. Such stripping would affect the dust production and hence detectability of the disk. We tabulated the fractions of planetesimals stripped off during stellar flybys of miss distances between 100 and 1000 AU and for several mass ratios of the central to passing stars. We then estimated the numbers of close stellar encounters over the lifetime of several expanding open clusters characterized by their initial star densities. We found that a standard disk, with inner and outer radii of 40 and 100 AU, suffers no loss of planetesimals over 100 Myrs around a star born in a common embedded cluster with star density <1000 pc^-3. In contrast, we found that such a disk is severely depleted of its planetesimals over this timescale around a star born in an Orion-type cluster where the star density is >20 000 pc^-3. In this environment, a disk loses >97% of its planetesimals around an M-dwarf, >63% around a solar-type star, and >42% around an A-dwarf, over 100 Myrs. We roughly estimate that two-thirds of the stars may be born in such high star density clusters. This might explain in part why fewer debris disks are observed around lower mass stars., Comment: 7 pages, 4 figures, accepted for publication in Astronomy and Astrophysics ; v2 abstract complemented
- Published
- 2011
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45. Makkasan Train Factory: an attempt to preserve Bangkok’s urban heritage
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Pongkwan Lassus
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Architecture ,NA1-9428 - Published
- 2021
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46. Paracrine Behaviors Arbitrate Parasite-Like Interactions Between Tumor Subclones
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Robert J. Noble, Viola Walther, Christian Roumestand, Michael E. Hochberg, Urszula Hibner, and Patrice Lassus
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cancer evolution ,intratumor clonal heterogeneity ,evolutionary game theory ,parasitism ,paracrine signaling ,beta-hydroxybutirate ,Evolution ,QH359-425 ,Ecology ,QH540-549.5 - Abstract
Explaining the emergence and maintenance of intratumor heterogeneity is an important question in cancer biology. Tumor cells can generate considerable subclonal diversity, which influences tumor growth rate, treatment resistance, and metastasis, yet we know remarkably little about how cells from different subclones interact. Here, we confronted two murine mammary cancer cell lines to determine both the nature and mechanisms of subclonal cellular interactions in vitro. Surprisingly, we found that, compared to monoculture, growth of the “winner” was enhanced by the presence of the “loser” cell line, whereas growth of the latter was reduced. Mathematical modeling and laboratory assays indicated that these interactions are mediated by the production of paracrine metabolites resulting in the winner subclone effectively “farming” the loser. Our findings add a new level of complexity to the mechanisms underlying subclonal growth dynamics.
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- 2021
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47. Association of myocardial hemorrhage and persistent microvascular obstruction with circulating inflammatory biomarkers in STEMI patients.
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Thomas Bochaton, Jules Lassus, Alexandre Paccalet, François Derimay, Gilles Rioufol, Cyril Prieur, Eric Bonnefoy-Cudraz, Claire Crola Da Silva, Hugo Bernelin, Camille Amaz, Sylvie Espanet, Charles de Bourguignon, Nathalie Dufay, Régine Cartier, Pierre Croisille, Michel Ovize, and Nathan Mewton
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Medicine ,Science - Abstract
IntroductionMyocardial hemorrhage (IMH) and persistent microvascular obstruction (MVO) are associated with impaired myocardial recovery and adverse clinical outcomes in STEMI patients. However, their relationship with circulating inflammatory biomarkers is unclear in human patients.Methods and resultsTwenty consecutive patients referred for primary percutaneous coronary intervention of first STEMI were included in a prospective study. Blood sampling was performed at admission, 4, 12, 24, 48 hours, 7 and 30 days after reperfusion for inflammatory biomarker (C reactive protein, fibrinogen, interleukin-6 (IL-6) and neutrophils count) assessment. At seven days, cardiovascular magnetic resonance (CMR) was performed for infarct size, MVO and IMH assessment. Median infarct size was 24.6% Interquartile range (IQR) [12.0-43.5] of LV mass and edema was 13.2% IQR [7.7-36.1] of LV mass. IL-6 reached a peak at H24 (5.6 pg/mL interquartile range (IQR) [2.5-17.5]), CRP at H48 (11.7 mg/L IQR [7.1-69.2]), fibrinogen one week after admission (4.4 g/L IQR [3.8-6.7]) and neutrophils at H12 (9.0 G/L IQR [6.5-12.7]). MVO was present in 11 patients (55% of the study population) and hemorrhage in 7 patients (35%). Patients with IMH had significantly higher IL-6, CRP, fibrinogen, and neutrophils levels compared to patients without IMH. Patients with persistent MVO had significantly higher CRP, fibrinogen and neutrophils level compared to patients without MVO, but identical IL-6 kinetics.ConclusionIn human patients with acute myocardial infarction, intramyocardial hemorrhage appears to have a stronger relationship with inflammatory biomarker release compared to persistent MVO. Attenuating myocardial hemorrhage may be a novel target in future adjunctive STEMI treatments.
- Published
- 2021
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- View/download PDF
48. Incidence of extraovarian clear cell cancers in women with surgically diagnosed endometriosis: A cohort study.
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Liisu Saavalainen, Heini Lassus, Anna But, Mika Gissler, Oskari Heikinheimo, and Eero Pukkala
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Medicine ,Science - Abstract
BackgroundEndometriosis is associated with increased risk of clear cell ovarian cancer and has even suggested being an etiological factor for this cancer. Association between endometriosis and extraovarian clear cell cancers is unclear. This study aimed to assess the association between surgically diagnosed endometriosis and risk of extraovarian clear cell cancers according to the type of endometriosis (i.e., ovarian, peritoneal, and other endometriosis) and the site of clear cell cancer.MethodsIn this register-based historic cohort study we identified all women with surgically diagnosed endometriosis from the Finnish Hospital Discharge Registry 1987-2012. Data on extraovarian clear cell cancers of these women were obtained from the Finnish Cancer Registry. The follow-up started January 1st, 2007 or at endometriosis diagnosis (if later), and ended at emigration, death or on the December 31st, 2014. Standardized incidence ratios were calculated for each site of clear cell carcinoma (intestine, kidney, urinary tract, gynecological organs other than ovary), using the Finnish female population as reference.ResultsThe endometriosis cohort consisted of 48,996 women, including 22,745 women with ovarian and 19,809 women with peritoneal endometriosis. Altogether 23 extraovarian clear cell cancers were observed during 367,386 person-years of follow-up. The risk of extraovarian clear cell cancer was not increased among all women with surgically diagnosed endometriosis (standardized incidence ratio 0.89, 95% confidence interval 0.56-1.33) nor in different types of endometriosis. The incidence of clear cell cancer in any specific site was not increased either.ConclusionsThe risk of extraovarian clear cell cancers in women with surgically diagnosed endometriosis is similar to that in the general population in Finland.
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- 2021
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49. Lymphotoxin signaling is initiated by the viral polymerase in HCV-linked tumorigenesis.
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Simonin, Yannick, Vegna, Serena, Akkari, Leila, Grégoire, Damien, Antoine, Etienne, Piette, Jacques, Floc'h, Nicolas, Lassus, Patrice, Yu, Guann-Yi, Rosenberg, Arielle R, Karin, Michael, Durantel, David, and Hibner, Urszula
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Liver ,Leukocytes ,Mononuclear ,Lymphocytes ,Cell Line ,Hepatocytes ,Animals ,Mice ,Transgenic ,Humans ,Mice ,Hepacivirus ,Liver Neoplasms ,RNA Replicase ,NF-kappa B ,Viral Proteins ,Viral Nonstructural Proteins ,Chemokines ,Lymphocyte Activation ,Signal Transduction ,Chemotaxis ,Leukocyte ,Up-Regulation ,Male ,I-kappa B Kinase ,Lymphotoxin-beta ,Host-Pathogen Interactions ,Immunity ,Innate ,Chemotaxis ,Leukocyte ,Immunity ,Innate ,Leukocytes ,Mononuclear ,Transgenic ,Virology ,Microbiology ,Immunology ,Medical Microbiology - Abstract
Exposure to hepatitis C virus (HCV) typically results in chronic infection that leads to progressive liver disease ranging from mild inflammation to severe fibrosis and cirrhosis as well as primary liver cancer. HCV triggers innate immune signaling within the infected hepatocyte, a first step in mounting of the adaptive response against HCV infection. Persistent inflammation is strongly associated with liver tumorigenesis. The goal of our work was to investigate the initiation of the inflammatory processes triggered by HCV viral proteins in their host cell and their possible link with HCV-related liver cancer. We report a dramatic upregulation of the lymphotoxin signaling pathway and more specifically of lymphotoxin-β in tumors of the FL-N/35 HCV-transgenic mice. Lymphotoxin expression is accompanied by activation of NF-κB, neosynthesis of chemokines and intra-tumoral recruitment of mononuclear cells. Spectacularly, IKKβ inactivation in FL-N/35 mice drastically reduces tumor incidence. Activation of lymphotoxin-β pathway can be reproduced in several cellular models, including the full length replicon and HCV-infected primary human hepatocytes. We have identified NS5B, the HCV RNA dependent RNA polymerase, as the viral protein responsible for this phenotype and shown that pharmacological inhibition of its activity alleviates activation of the pro-inflammatory pathway. These results open new perspectives in understanding the inflammatory mechanisms linked to HCV infection and tumorigenesis.
- Published
- 2013
50. Total laryngopharyngectomy with circumferential reconstruction: Helsinki institutional study
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Zarins, Janis, Aro, Katri, Bäck, Leif, Atula, Timo, Vuola, Jyrki, Lassus, Patrik, and Keski-Säntti, Harri
- Published
- 2019
- Full Text
- View/download PDF
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