27 results on '"Chopra N"'
Search Results
2. Thermophysical properties for the major rock formations of the Western Himalaya: Implications for 2-D conductive thermal modeling
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Sidagam, E., Ray, L., Dutta, A., Chopra, N., Podugu, N., and Khan, T.
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Thermal modeling of the lithosphere is essential to understand the geodynamics, seismogenesis, and crustal evolution of any region. Surface heat flow, radiogenic heat production, and thermal conductivity variations with temperature are the primary parameters that influence thermal modeling. The Western Himalaya is devoid of all these parameters, which hindered accurate thermal modeling of the region. In the present study, we have measured the above thermophysical properties in the laboratory for the major rock formations of the Western Himalaya along three NW-SE profiles. The major rock formations include sandstone, limestone, dolomitic limestone, slate, phyllite, quartzite, schist, gneiss, and granitoid. Thermal conductivity and heat production of these rocks vary from 2.6 to 5.4 Wm-1K-1 and 1.7 to 2.6 µWm-3. The crustal structure along one of the profiles, i.e., Tanakpur-Pangla profile (150 km length), is made using available geological and geophysical (seismological and gravity) information, along with new data on rock thermal conductivity and its variation with temperature and radiogenic heat production to obtain 2D conductive thermal structure beneath the region by finite element method. The 2D temperature-depth distribution along this profile covering Siwalik, Lesser Himalaya, and Higher Himalaya formations reveals that the temperature at Moho varies from 450 °C to 750 °C. At a few locations, subsurface temperatures estimated from the 1D conductivity models are in good agreement with that of the 2D results within the uncertainty limits. The results of 2D thermal modeling provide significant progress in understanding of the first-order characteristics of the conductive thermal field in the Western Himalaya., The 28th IUGG General Assembly (IUGG2023) (Berlin 2023)
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- 2023
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3. Heat flow, heat production, and crustal thermal modeling of the Singhbhum Craton, eastern India
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Ray, L., Chopra, N., Sidagam, E., and Sreenivas, B.
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Heat flow plays a vital role in estimating the lithospheric temperature distribution, which is an essential parameter in understanding the evolution and stabilization of the cratons. Heat flow is determined in the Mesoarchean Singhbhum Craton, one of the oldest cratons in the Indian shield, for the first time from seven locations. This enabled us to construct plausible 1-D crustal thermal models and to estimate mantle heat flow by considering a few crustal heat production/thermal conductivity models based on crustal structures from the geological/geophysical studies of the study region. In the present study, detailed radioelemental abundances (Th, U, K) and heat production are measured for the Paleoarchaean gneiss (OMTG) and Singhbhum Granites (SBG) of the craton. The result shows that both OMTG and SBG, which cover most of the craton, have, in general, low radioelemental abundances and heat production with an average of 1.3 ± 0.2 mWm-3. Heat flow ranges from 27-34 mWm-2, with an average of 30 ± 3 mWm-2, which is lowest than most of the cratons. Interestingly, the value is also half that observed in the Singhbhum Shear Zone (61 ± 2 mWm-2), situated in its north. The 1-D thermal models indicate that mantle heat flow and Moho temperature range from 14-16 mWm-2 and 330-370 °C, respectively. These fall within the range observed for the Archaean cratons despite their lowest surface heat flow. It is mainly due to the distinct crustal heat production scenarios and upper crustal thermal conductivity profiles, which provide clues to understanding the craton formation., The 28th IUGG General Assembly (IUGG2023) (Berlin 2023)
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- 2023
- Full Text
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4. Thermal conductivity variations of upper crustal rocks at elevated temperatures (25-300 oC) and their implication in 1-D crustal thermal modeling
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Chopra, N., Ray, L., and Sidagam, E.
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Knowledge of the downward variation of thermal conductivity within Earth's interior is an essential parameter for accurately estimating the sub-surface temperature distribution. The variation is dominantly controlled by temperature and, to a very less extent, by pressure. The temperature dependence is distinct for various rocks and higher for upper crustal rocks than the lower crustal rocks, implying the utmost necessity of detailed study for upper crustal rocks. In thermal modeling, two temperature coefficients are commonly considered for the upper and lower crust. But the upper crust generally consists of a wide variety of rocks.In the present study, thermal conductivity variation with temperature has been studied in the laboratory by a steady-state method in the temperature range of 25-300 °C on different types of upper crustal rocks, e.g., granitoids and rhyolites. Results show that the temperature dependence of thermal conductivity for different varieties of granitoids, i.e., alkali feldspar granite to monzogranite and granodiorite to tonalite to quartz diorite, indicate two distinct ranges and rhyolites lie between these two varieties. The study also depicts that a single temperature coefficient for the upper crustal rocks needs to be modified, and appropriate values should be considered, depending upon the variations in rock formation of the upper crust. The observed wide variations in the temperature dependence of thermal conductivity for different varieties of upper crustal rocks will be useful for precise sub-surface thermal modeling. The study also investigated how the difference in temperature coefficient for the upper crust can produce a difference in thermal structure. , The 28th IUGG General Assembly (IUGG2023) (Berlin 2023)
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- 2023
- Full Text
- View/download PDF
5. Relative competency of urea in augmenting physiological and agronomic traits of baby corn (Zea mays)
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Sharma, A., Chopra, N. K., Kumar, A., and Kumar, R.
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Agronomy and Crop Science - Abstract
Nitrogen is indispensable for aggrandizing productivity of crop but the losses associated due to swift transformation and release pattern are subjected to various losses leading to pitiful amount left for crop uptake, pollution and resource wastage. Present study was conducted to evaluate the efficacy of coated urea and nitrogen rates on baby corn growth, yield and NUE. The experiment comprised varieties PHM-1 and HM-4, coated urea (NCU, ZCU, SCU and PU) and nitrogen levels @180, 150, 120 kg N/ha along with the control. The study revealed that PHM-1 obtained significantly higher plant height, no. of cobs and weight of dehusked cob that led to significant increase of 18.47 and 19.67 % higher husked and dehusked cob yields over HM-4 which attained 12.6% higher fodder yield over latter. The baby corn cob yield and fodder yield were significantly higher in coated urea over prilled urea. The husked and dehusked yield of baby corn was higher in neem-coated urea over prilled urea by 14.81 and 14.37% respectively. H o w e v e r , a reduction of 59.9% in total fodder yield was recorded in control when compared to 180 kg N ha. Also, NPK uptake was higher then PHM-1 and uptake by coated urea was higher then prilled urea along with high uptake for 180 kg N/ha, further the AE and higher PE of baby corn cob was found highest in variety PHM-1 although for fodder, the higher AE was recorded in HM-4, whereas ANR was higher in PHM-1.
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- 2020
6. Clinical portrait of the SARS-Cov-2 epidemic in European cancer patients
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Pinato DJ, Zambelli A, Aguilar-Company J, Bower M, Sng C, Salazar R, Bertuzzi A, Brunet J, Mesia R, Segui E, Biello F, Generali D, Grisanti S, Rizzo G, Libertini M, Maconi A, Harbeck N, Vincenzi B, Bertulli R, Ottaviani D, Carbo A, Bruna R, Benafif S, Marrari A, Wuerstlein R, Carmona-Garcia MC, Chopra N, Tondini C, Mirallas O, Tovazzi V, Betti M, Provenzano S, Fotia V, Cruz CA, Dalla Pria A, D'Avanzo F, Evans JS, Saoudi-Gonzalez N, Felip E, Galazi M, Garcia-Fructuoso I, Lee AJX, Newsom-Davis T, Patriarca A, Garcia-Illescas D, Reyes R, Dileo P, Sharkey R, Wong YNS, Ferrante D, Marco-Hernandez J, Sureda A, Maluquer C, Ruiz-Camps I, Gaidano G, Rimassa L, Chiudinelli L, Izuzquiza M, Cabirta A, Franchi M, Santoro A, Prat A, Tabernero J, Gennari A, Wellcome Trust, and Cancer Treatment & Research Trust
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1112 Oncology and Carcinogenesis - Abstract
The SARS-Cov-2 pandemic significantly impacted on oncology practice across the globe. There is uncertainty as to the contribution of patients' demographics and oncological features on severity and mortality from Covid-19 and little guidance as to the role of anti-cancer and anti-Covid-19 therapy in this population. In a multi-center study of 890 cancer patients with confirmed Covid-19 we demonstrated a worsening gradient of mortality from breast cancer to haematological malignancies and showed that male gender, older age, and number of co-morbidities identifies a subset of patients with significantly worse mortality rates from Covid-19. Provision of chemotherapy, targeted therapy and immunotherapy did not worsen mortality. Exposure to antimalarials was associated with improved mortality rates independent of baseline prognostic factors. This study highlights the clinical utility of demographic factors for individualized risk-stratification of patients and support further research into emerging anti-Covid-19 therapeutics in SARS-Cov-2 infected cancer patients.
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- 2020
7. Phase I trial of the poly(ADP-ribose) polymerase (PARP) inhibitor olaparib and AKT inhibitor capivasertib in patients with BRCA1/2 and non-BRCA1/2 mutant cancers
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Yap T, Kristeleit R, Michalarea V, Pettitt S, Lim J, Carreira S, Roda D, Miller R, Riisnaes R, Miranda S, Figueiredo I, Nava Rodrigues D, Ward S, Matthews R, Parmar M, Turner A, Tunariu N, Chopra N, Gevensleben H, Turner N, Ruddle R, Raynaud F, Decordova S, Swales K, Finneran L, Hall E, Rugman P, Lindemann J, Foxley A, Lord C, Banerji U, Plummer R, Basu B, Lopez J, Drew Y, and de Bono J
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Preclinical studies have demonstrated synergy between poly(ADP-ribose) polymerase (PARP) and phosphatidylinositol-3-kinase (PI3K)/AKT pathway inhibitors in BRCA1 and BRCA2 (BRCA1/2)-deficient and BRCA1/2-proficient tumors. We conducted an investigator-initiated phase I trial utilizing a prospective intrapatient dose-escalation design to assess two schedules of capivasertib (AKT inhibitor) with olaparib (PARP inhibitor) in 64 patients with advanced solid tumors. Dose expansions enrolled germline BRCA1/2-mutant tumors, or BRCA1/2-wildtype cancers harboring somatic DNA damage response (DDR) or PI3K/AKT pathway alterations. The combination was well-tolerated. Recommended phase 2 doses for the two schedules were: olaparib 300mg BID with either capivasertib 400mg BID 4-days-on, 3-days-off, or capivasertib 640mg BID 2-days-on, 5-days-off. Pharmacokinetics were dose-proportional. Pharmacodynamic studies confirmed pGSK3beta suppression, increased pERK and decreased BRCA1 expression. 25 (44.6%) of 56 evaluable patients achieved clinical benefit (RECIST CR/PR or stable disease =4 months), including patients with tumors harboring germline BRCA1/2-mutations and BRCA1/2-wildtype cancers with or without DDR and PI3K/AKT pathway alterations. Copyright ©2020, American Association for Cancer Research.
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- 2020
8. An elevated D-dimer value: a burden on our patients and hospitals
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Chopra N, Doddamreddy P, Grewal H, and Kumar PC
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lcsh:R5-920 ,lcsh:Medicine (General) - Abstract
Nitin Chopra, Pradeep Doddamreddy, Hermanjeet Grewal, Pratap C KumarJackson Park Hospital, Chicago, IL, USAAbstract: With 200,000 annual deaths in the United States due to pulmonary embolism (PE), efficient and accurate diagnosis is mandatory. Since negative D-dimer values are only useful in ruling out PE, elevated values alone should not result in excessive testing. This study assessed the diagnostic and financial yield of the D-dimer in diagnosing PE. This retrospective review of 220 medical records of patients at a South Chicago Community Hospital explored the extent of the work-up following an elevated D-dimer for a suspected PE. Patients were randomly selected with no exclusion criteria. Five of the 118 (4.2%) patients with elevated D-dimer values were diagnosed with a PE. Tests ordered based on elevated D-dimer values were billed for more than $200,000. The current diagnostic approach has been medically and financially inefficient. Patients should not be worked-up for a PE based primarily on an elevated D-dimer value. Two prominent factors, independent of PE, that result in elevated D-dimer values and were pertinent to the studied population, are age and African-American origin. Implementing a scoring system, like the revised-Geneva scale, will establish a better index of suspicion to improve both the physician's diagnostic approach and the yield of the work-up.Keywords: pulmonary embolism, D-dimer, diagnosis, age, African-Americans, scoring
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- 2012
9. The representation and consumption of 'Asian culture'
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Mehta-Chopra, N and Mehta-Chopra, N
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This thesis focuses on the representation and consumption of 'Asian culture' within a context of Western popular culture and specifically, 'British mainstream' and 'British Asian' magazine visual discourses. Through a critical engagement with Edward Said's Orientalism (1978) which charted Western inferiorizing cultural representations of the East as located in historical and material contexts, I aim to explore issues of 'race' and Otherness amidst a background of historical and commodification processes. This has been attempted using multiple methodologies that in addition to engaging with secondary material, has involved a reflexive use of semiotics and discourse analysis to analyse magazine images and written text respectively. Further, I have attempted to go beyond the textual focus of both Orientalism (1978) and many media studies by also gathering contextual reader responses to magazine representations. These have taken the form of the subjective interpretations of 20 British youths (men and women of Asian and white English origin) that have been analysed in conjunction with biographical narratives that I also conducted with each of them. Through the use of this rich and varied empirical data coupled with a thorough review of secondary source material, I aim to add to and question work that has been conducted in the area of 'race' and culture that appears to have moved from a concentration on the 'essential black subject' to an emphasis on ethnic unities within an uncritical celebration of 'diaspora' and 'hybridity'. I also aim to make problematic work that has been conducted in the area of orientalism through drawing attention to the limitations associated with the concept of 'self-orientalism' and practices of 'self-representation' by minorities. Overall, through conducting work on Asian representations within the popular magazine media coupled with its interrelation with varied audiences, I hope to make some inroads into these under-researched areas.
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- 2005
10. Distributed control of multi-robot systems with global connectivity maintenance
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Sabattini, Lorenzo, Chopra, N., and Secchi, Cristian
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decentralized control ,multi-robot systems ,algebra - Published
- 2011
11. Early Results from the Wisconsin H-Alpha Mapper Southern Sky Survey
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Lawrence Haffner, Reynolds, R. J., Madsen, G. J., Hill, A. S., Barger, K. A., Jaehnig, K. P., Mierkiewicz, E. J., Percival, J. W., and Chopra, N.
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Astrophysics of Galaxies (astro-ph.GA) ,FOS: Physical sciences ,Astrophysics - Astrophysics of Galaxies - Abstract
After a successful eleven-year campaign at Kitt Peak, we moved the Wisconsin H-Alpha Mapper (WHAM) to Cerro Tololo in early 2009. Here we present some of the early data after a few months under southern skies. These maps begin to complete the first all-sky, kinematic survey of the diffuse H-alpha emission from the Milky Way. Much of this emission arises from the Warm Ionized Medium (WIM), a significant component of the ISM that extends a few kiloparsecs above the Galactic disk. While this first look at the data focuses on the H-alpha survey, WHAM is also capable of observing many other optical emission lines, revealing fascinating trends in the temperature and ionization state of the WIM. Our ongoing studies of the physical conditions of diffuse ionized gas will continue from the southern hemisphere following the H-alpha survey. In addition, future observations will cover the full velocity range of the Magellanic Stream, Bridge, and Clouds to trace the ionized gas associated with these neighboring systems., 4 pages, 2 figures. To appear in "The Dynamic ISM: A celebration of the Canadian Galactic Plane Survey," ASP Conference Series
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- 2010
12. Adaptive Coordination Control of Bilateral Teleoperators with Time Delay
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Chopra, N., Spong, M., Lozano, R., Lozano, Rogelio, University of Maryland [College Park], University of Maryland System, University of Texas at Dallas [Richardson] (UT Dallas), Heuristique et Diagnostic des Systèmes Complexes [Compiègne] (Heudiasyc), Université de Technologie de Compiègne (UTC)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Franco-Mexicain d'Informatique et d'Automatique (LAFMIA), and Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centro de Investigacion y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV)-Université Joseph Fourier - Grenoble 1 (UJF)-Université de Technologie de Compiègne (UTC)-Consejo Nacional de Ciencia y Tecnología [Mexico] (CONACYT)-Centre National de la Recherche Scientifique (CNRS)
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Computer Science::Multiagent Systems ,[SPI.AUTO] Engineering Sciences [physics]/Automatic ,[INFO.INFO-AU]Computer Science [cs]/Automatic Control Engineering ,teleoperation ,passive systems ,[INFO.INFO-AU] Computer Science [cs]/Automatic Control Engineering ,[SPI.AUTO]Engineering Sciences [physics]/Automatic - Abstract
International audience; In this work we analize the controllability and observability properties of several interconnection configurations such as the chain topology and ring topology as well as combinations of these two topologies. A leader/follower control strategy is proposed to control the center of mass of the multiple agent system. It is shown that the trajectory tracking for a multiagent system converges to the constant input reference given only to the leader. Also, it is shown that choosing an appropiated gain, the agents achieve consensus for time varying input reference.
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- 2008
13. 'We were treated like adults' - development of a pre-medicine summer school for 16 year olds from deprived socioeconomic backgrounds: action research study
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Greenhalgh, T., Russell, J., Dunkley, L., Boynton, P., Lefford, F., and Chopra, N.
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genetic structures ,education - Abstract
Objective To develop a one week widening access summer school for 16 year old pupils from, non-traditional backgrounds who are considering applying to medical school, and to identify its short term impact and key success factors.Design Action research with partnership schools tit deprived inner-city areas in five overlapping phases: schools liaison, recruitment of pupils and assessment of needs, programme design, programme delivery, and evaluation. The design phase incorporated findings from one-to-one interviews with every pupil, and workshops and focus groups for pupils, Parents, teachers, medical student assistants, NHS staff, and other stakeholders. An in-depth process evaluation of the summer School was undertaken from the perspective of multiple stakeholders using questionnaires, interviews, focus groups, and observation.Participants 40 pupils aged 16 years from socioeconomically deprived and under-represented ethnic Minority groups.Results The summer school was popular with pupils, parents, teachers, and staff. It substantially raised pupils' confidence and motivation to apply to medical school. Critical success factors were identified as an atmosphere of "respect"; a focus on hands-on work in small groups; the input. of medical students as role models; and vision and leadership from senior staff. A particularly popular and effective aspect Of the course was a grand round held Oil the last clay, in which pupils gave group presentations of real cases.Conclusion An action research format allowed us to draw the different stakeholders into a collaborative endeavour characterised by enthusiasm, interpersonal support, and mutual respect. The input from pupils to the programme design ensured high engagement and low drop-out rates. Hands-on activities in small groups and social drama of preparing and giving a grand round presentation were particularly important.
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- 2006
14. Extraocular Muscle Cysticercosis Masquerading Idiopathic Orbital Inflammatory Syndrome(IOIS)
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Manjhi P, Shikha Baisakhiya, Sharma N, Babber M, and Chopra N
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Pathology ,medicine.medical_specialty ,genetic structures ,Cysticercosis ,Anatomy ,Biology ,Extraocular muscles ,medicine.disease ,eye diseases ,Right inferior rectus muscle ,medicine.anatomical_structure ,parasitic diseases ,Intraocular Infection ,Rare case ,medicine ,Cysticercus cellulosae ,sense organs ,High incidence - Abstract
Intraocular infection by Cysticercus cellulosae larva are often found as part of a generalized systemic infestation. Reports of orbital adnexal cysticercosis are uncommon, despite the high incidence of brain and ocular involvement. With isolated infestation of extraocular muscle being exceedingly rare, we at our institute report a rare case of isolated right inferior rectus muscle cysticercosis which presented with unilateral eccentric proptosis and restriction of upgaze Del J Ophthalmol 2012;23(1):53-54.
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- 2012
15. A Note on Dried Blood Plasma and Its Preparation in India
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Hayes, S. N., Ray, J. N., and Chopra, N. N.
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Original Articles - Published
- 1941
16. Microscopic determination of the interlayer binding energy in graphite
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Benedict, L. X., Chopra, N. G., Cohen, M. L., Alex Zettl, Louie, S. G., and Crespi, V. H.
17. Anisotropic electron-beam damage and the collapse of carbon nanotubes
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Crespi, V. H., Chopra, N. G., Cohen, M. L., Alex Zettl, and Louie, S. G.
18. Boron nitride nanotubes
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Chopra, N. G., Luyken, R. J., Cherrey, K., Vincent Crespi, Cohen, M. L., Louie, S. G., and Zettl, A.
19. Variety pusa basmati 1509
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Singh, A. K., Gopala Krishnan, S., Nagarajan, M., Vinod, K. K., Bhowmick, P. K., Atwal, S. S., Seth, R., Chopra, N. K., Chander, S., Singh, V. P., Prabhu, K. V., Singh, D., Sudhir Kumar, and Ravindran, G.
20. CuO nanowire-Co3O4 nanoparticle heterostructures and their vertically aligned and horizontally suspended architectures
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Wenwu Shi and Chopra, N.
21. Prevalence and impact of COVID-19 sequelae on treatment and survival of patients with cancer who recovered from SARS-CoV-2 infection: evidence from the OnCovid retrospective, multicentre registry study
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David J Pinato, Josep Tabernero, Mark Bower, Lorenza Scotti, Meera Patel, Emeline Colomba, Saoirse Dolly, Angela Loizidou, John Chester, Uma Mukherjee, Alberto Zambelli, Alessia Dalla Pria, Juan Aguilar-Company, Diego Ottaviani, Amani Chowdhury, Eve Merry, Ramon Salazar, Alexia Bertuzzi, Joan Brunet, Matteo Lambertini, Marco Tagliamento, Anna Pous, Ailsa Sita-Lumsden, Krishnie Srikandarajah, Johann Colomba, Fanny Pommeret, Elia Seguí, Daniele Generali, Salvatore Grisanti, Paolo Pedrazzoli, Gianpiero Rizzo, Michela Libertini, Charlotte Moss, Joanne S Evans, Beth Russell, Nadia Harbeck, Bruno Vincenzi, Federica Biello, Rossella Bertulli, Raquel Liñan, Sabrina Rossi, Maria Carmen Carmona-García, Carlo Tondini, Laura Fox, Alice Baggi, Vittoria Fotia, Alessandro Parisi, Giampero Porzio, Maristella Saponara, Claudia Andrea Cruz, David García-Illescas, Eudald Felip, Ariadna Roqué Lloveras, Rachel Sharkey, Elisa Roldán, Roxana Reyes, Irina Earnshaw, Daniela Ferrante, Javier Marco-Hernández, Isabel Ruiz-Camps, Gianluca Gaidano, Andrea Patriarca, Riccardo Bruna, Anna Sureda, Clara Martinez-Vila, Ana Sanchez de Torre, Luca Cantini, Marco Filetti, Lorenza Rimassa, Lorenzo Chiudinelli, Michela Franchi, Marco Krengli, Armando Santoro, Aleix Prat, Mieke Van Hemelrijck, Nikolaos Diamantis, Thomas Newsom-Davis, Alessandra Gennari, Alessio Cortellini, Judith Swallow, Chris Chung, Gino Dettorre, Neha Chopra, Alvin JX Lee, Christopher CT Sng, Yien Ning Sophia Wong, Myria Galazi, Sarah Benafif, Palma Dileo, Grisma Patel, Anjui Wu, Alasdair Sinclair, Gehan Soosaipillai, Eleanor Jones, Amanda Jackson, Martine Piccart, Emeline Colomba-Blameble, Claudia A Cruz, Elia Segui, David Garcia Illescas, Oriol Mirallas, Anna Carbó, Isabel Garcia, Rachel Wuerstlein, Ricard Mesia, Clara Maluquer, Francesca D'Avanzo, Giuseppe Tonini, Salvatore Provenzano, Valeria Tovazzi, Corrado Ficorella, Paola Queirolo, Raffaele Giusti, Francesca Mazzoni, Federica Zoratto, Marco Tucci, Rossana Berardi, Annalisa Guida, Sergio Bracarda, Maria Iglesias, Pinato, D. J., Tabernero, J., Bower, M., Scotti, L., Patel, M., Colomba, E., Dolly, S., Loizidou, A., Chester, J., Mukherjee, U., Zambelli, A., Dalla Pria, A., Aguilar-Company, J., Ottaviani, D., Chowdhury, A., Merry, E., Salazar, R., Bertuzzi, A., Brunet, J., Lambertini, M., Tagliamento, M., Pous, A., Sita-Lumsden, A., Srikandarajah, K., Colomba, J., Pommeret, F., Segui, E., Generali, D., Grisanti, S., Pedrazzoli, P., Rizzo, G., Libertini, M., Moss, C., Evans, J. S., Russell, B., Harbeck, N., Vincenzi, B., Biello, F., Bertulli, R., Linan, R., Rossi, S., Carmona-Garcia, M. C., Tondini, C., Fox, L., Baggi, A., Fotia, V., Parisi, A., Porzio, G., Saponara, M., Cruz, C. A., Garcia-Illescas, D., Felip, E., Roque Lloveras, A., Sharkey, R., Roldan, E., Reyes, R., Earnshaw, I., Ferrante, D., Marco-Hernandez, J., Ruiz-Camps, I., Gaidano, G., Patriarca, A., Bruna, R., Sureda, A., Martinez-Vila, C., Sanchez de Torre, A., Cantini, L., Filetti, M., Rimassa, L., Chiudinelli, L., Franchi, M., Krengli, M., Santoro, A., Prat, A., Van Hemelrijck, M., Diamantis, N., Newsom-Davis, T., Gennari, A., Cortellini, A., Swallow, J., Chung, C., Dettorre, G., Chopra, N., Lee, A. J., Sng, C. C., Wong, Y. N. S., Galazi, M., Benafif, S., Dileo, P., Patel, G., Wu, A., Sinclair, A., Soosaipillai, G., Jones, E., Jackson, A., Piccart, M., Colomba-Blameble, E., Garcia Illescas, D., Mirallas, O., Carbo, A., Garcia, I., Wuerstlein, R., Mesia, R., Maluquer, C., D'Avanzo, F., Tonini, G., Provenzano, S., Tovazzi, V., Ficorella, C., Queirolo, P., Giusti, R., Mazzoni, F., Zoratto, F., Tucci, M., Berardi, R., Guida, A., Bracarda, S., and Iglesias, M.
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Adult ,Aged ,Aged, 80 and over ,Antineoplastic Agents ,Belgium ,COVID-19 ,Disease Progression ,Female ,France ,Germany ,Hospitalization ,Humans ,Italy ,Kaplan-Meier Estimate ,Male ,Middle Aged ,Neoplasms ,Prevalence ,Registries ,Retrospective Studies ,Spain ,United Kingdom ,medicine.medical_specialty ,Coronavirus disease 2019 (COVID-19) ,Registry study ,Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) ,OnCovid ,cancer treatment ,Post-Acute COVID-19 Syndrome ,Internal medicine ,medicine ,80 and over ,In patient ,business.industry ,Cancer ,Retrospective cohort study ,Articles ,medicine.disease ,Oncology ,Research centre ,Population study ,business - Abstract
Background: The medium-term and long-term impact of COVID-19 in patients with cancer is not yet known. In this study, we aimed to describe the prevalence of COVID-19 sequelae and their impact on the survival of patients with cancer. We also aimed to describe patterns of resumption and modifications of systemic anti-cancer therapy following recovery from SARS-CoV-2 infection. Methods: OnCovid is an active European registry study enrolling consecutive patients aged 18 years or older with a history of solid or haematological malignancy and who had a diagnosis of RT-PCR confirmed SARS-CoV-2 infection. For this retrospective study, patients were enrolled from 35 institutions across Belgium, France, Germany, Italy, Spain, and the UK. Patients who were diagnosed with SARS-CoV-2 infection between Feb 27, 2020, and Feb 14, 2021, and entered into the registry at the point of data lock (March 1, 2021), were eligible for analysis. The present analysis was focused on COVID-19 survivors who underwent clinical reassessment at each participating institution. We documented prevalence of COVID-19 sequelae and described factors associated with their development and their association with post-COVID-19 survival, which was defined as the interval from post-COVID-19 reassessment to the patients’ death or last follow-up. We also evaluated resumption of systemic anti-cancer therapy in patients treated within 4 weeks of COVID-19 diagnosis. The OnCovid study is registered in ClinicalTrials.gov, NCT04393974. Findings: 2795 patients diagnosed with SARS-CoV-2 infection between Feb 27, 2020, and Feb 14, 2021, were entered into the study by the time of the data lock on March 1, 2021. After the exclusion of ineligible patients, the final study population consisted of 2634 patients. 1557 COVID-19 survivors underwent a formal clinical reassessment after a median of 22·1 months (IQR 8·4–57·8) from cancer diagnosis and 44 days (28–329) from COVID-19 diagnosis. 234 (15·0%) patients reported COVID-19 sequelae, including respiratory symptoms (116 [49·6%]) and residual fatigue (96 [41·0%]). Sequelae were more common in men (vs women; p=0·041), patients aged 65 years or older (vs other age groups; p=0·048), patients with two or more comorbidities (vs one or none; p=0·0006), and patients with a history of smoking (vs no smoking history; p=0·0004). Sequelae were associated with hospitalisation for COVID-19 (p
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- 2021
22. COVID-19 in breast cancer patients: a subanalysis of the OnCovid registry
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Laia Garrigós, Cristina Saura, Clara Martinez-Vila, Alberto Zambelli, Mark Bower, Barbara Pistilli, Matteo Lambertini, Diego Ottaviani, Nikolaos Diamantis, Ailsa Lumsden, Sonia Pernas, Daniele Generali, Elia Seguí, Gemma Viñas, Eudald Felip, Ana Sanchez, Gianpiero Rizzo, Armando Santoro, Alessio Cortellini, Ylenia Perone, John Chester, Maria Iglesias, Marta Betti, Bruno Vincenzi, Michela Libertini, Francesca Mazzoni, Federica Zoratto, Rossana Berardi, Annalisa Guida, Rachel Wuerstlein, Angela Loizidou, Rachel Sharkey, Juan Aguilar Company, Marta Matas, Chiara Saggia, Lorenzo Chiudinelli, Emeline Colomba-Blameble, Myria Galazi, Uma Mukherjee, Mieke Van Hemelrijck, Mar Marin, Carla Strina, Aleix Prat, Helena Pla, Eva Maria Ciruelos, Alexia Bertuzzi, Lucia del Mastro, Giampiero Porzio, Thomas Newsom-Davis, Isabel Ruiz, Maria Belen Delany, Marco Krengli, Vittoria Fotia, Alessandro Viansone, Neha Chopra, Margarita Romeo, Ramon Salazar, Ignacio Perez, Francesca d’Avanzo, Michela Franchi, Manuela Milani, Fanny Pommeret, Marco Tucci, Paolo Pedrazzoli, Nadia Harbeck, Daniela Ferrante, David J. Pinato, Alessandra Gennari, Garrigos, L., Saura, C., Martinez-Vila, C., Zambelli, A., Bower, M., Pistilli, B., Lambertini, M., Ottaviani, D., Diamantis, N., Lumsden, A., Pernas, S., Generali, D., Segui, E., Vinas, G., Felip, E., Sanchez, A., Rizzo, G., Santoro, A., Cortellini, A., Perone, Y., Chester, J., Iglesias, M., Betti, M., Vincenzi, B., Libertini, M., Mazzoni, F., Zoratto, F., Berardi, R., Guida, A., Wuerstlein, R., Loizidou, A., Sharkey, R., Aguilar Company, J., Matas, M., Saggia, C., Chiudinelli, L., Colomba-Blameble, E., Galazi, M., Mukherjee, U., Van Hemelrijck, M., Marin, M., Strina, C., Prat, A., Pla, H., Ciruelos, E. M., Bertuzzi, A., del Mastro, L., Porzio, G., Newsom-Davis, T., Ruiz, I., Delany, M. B., Krengli, M., Fotia, V., Viansone, A., Chopra, N., Romeo, M., Salazar, R., Perez, I., D'Avanzo, F., Franchi, M., Milani, M., Pommeret, F., Tucci, M., Pedrazzoli, P., Harbeck, N., Ferrante, D., Pinato, D. J., Gennari, A., Institut Català de la Salut, [Garrigós L] Servei d’Oncologia Mèdica, Vall d’Hebron Hospital Universitari, Barcelona, Spain. Vall d’Hebron Institute of Oncology (VHIO), Barcelona, Spain. [Saura C] Vall d’Hebron Hospital Universitari, Barcelona, Spain. Head Breast Cancer Unit, Vall d’Hebron Institute of Oncology (VHIO), Barcelona, Spain. [Martinez-Vila C] Department of Oncology, Hospital Althaia Manresa, Barcelona, Spain. [Zambelli A] Oncology Unit, ASST Papa Giovanni XXIII, Bergamo, Italy. [Bower M] Department of Oncology and National Centre for HIV Malignancy, Chelsea and Westminster Hospital, London, UK. [Pistilli B] Department of Medical Oncology, Institute Gustave-Roussy, Villejuif, France. [Aguilar Company J] Servei d’Oncologia Mèdica i Servei de Malalties Infeccioses, Vall d’Hebron Hospital Universitari, Barcelona, Spain. Vall d’Hebron Institute of Oncology (VHIO), Barcelona, Spain. [Ruiz I] Servei de Malalties Infeccioses, Vall d’Hebron Hospital Universitari, Barcelona, Spain. [Pla H] Departament d'Oncologia Institut Català d'Oncologia, Hospital Universitari de Girona Doctor Josep Trueta, Institut Català de la Salut (ICS), Girona, Spain, and Vall d'Hebron Barcelona Hospital Campus
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medicine.medical_specialty ,Outcome assessment (Medical care) ,breast cancer ,COVID-19 ,COVID-19 outcomes ,OnCovid ,SARS-CoV-2 ,Neoplasms::Neoplasms by Site::Breast Neoplasms [DISEASES] ,Population ,Context (language use) ,COVID-19 (Malaltia) - Mortalitat ,Disease ,técnicas de investigación::métodos epidemiológicos::recopilación de datos::estadísticas vitales::mortalidad [TÉCNICAS Y EQUIPOS ANALÍTICOS, DIAGNÓSTICOS Y TERAPÉUTICOS] ,Càncer de mama ,Otros calificadores::Otros calificadores::/complicaciones [Otros calificadores] ,Breast cancer ,Mama - Càncer ,Internal medicine ,virosis::infecciones por virus ARN::infecciones por Nidovirales::infecciones por Coronaviridae::infecciones por Coronavirus [ENFERMEDADES] ,Medicine ,education ,COVID-19 outcome ,RC254-282 ,COVID-19 (Malaltia) - Complicacions ,Original Research ,education.field_of_study ,neoplasias::neoplasias por localización::neoplasias de la mama [ENFERMEDADES] ,business.industry ,Mortality rate ,Cancer ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,Virus Diseases::RNA Virus Infections::Nidovirales Infections::Coronaviridae Infections::Coronavirus Infections [DISEASES] ,medicine.disease ,Comorbidity ,Oncology ,Investigative Techniques::Epidemiologic Methods::Data Collection::Vital Statistics::Mortality [ANALYTICAL, DIAGNOSTIC AND THERAPEUTIC TECHNIQUES, AND EQUIPMENT] ,Avaluació de resultats (Assistència mèdica) ,business ,Complication ,Other subheadings::Other subheadings::/complications [Other subheadings] - Abstract
COVID-19; SARS-CoV-2; Cáncer de mama COVID-19; SARS-CoV-2; Càncer de mama COVID-19; SARS-CoV-2; Breast cancer Background: Cancer patients are at higher risk of COVID-19 complications and mortality than the rest of the population. Breast cancer patients seem to have better prognosis when infected by SARS-CoV-2 than other cancer patients. Methods: We report a subanalysis of the OnCovid study providing more detailed information in the breast cancer population. Results: We included 495 breast cancer patients with a SARS-CoV-2 infection. Mean age was 62.6 years; 31.5% presented more than one comorbidity. The most frequent breast cancer subtype was luminal-like (n = 245, 49.5%) and 177 (35.8%) had metastatic disease. A total of 332 (67.1%) patients were receiving active treatment, with radical intent in 232 (47.6%) of them. Hospitalization rate was 58.2% and all-cause mortality rate was 20.3%. One hundred twenty-nine (26.1%) patients developed one COVID-19 complication, being acute respiratory failure the most common (n = 74, 15.0%). In the multivariable analysis, age older than 70 years, presence of COVID-19 complications, and metastatic disease were factors correlated with worse outcomes, while ongoing anticancer therapy at time of COVID-19 diagnosis appeared to be a protective factor. No particular oncological treatment was related to higher risk of complications. In the context of SARS-CoV-2 infection, 73 (18.3%) patients had some kind of modification on their oncologic treatment. At the first oncological reassessment (median time: 46.9 days ± 36.7), 255 (51.6%) patients reported to be fully recovered from the infection. There were 39 patients (7.9%) with long-term SARS-CoV-2-related complications. Conclusion: In the context of COVID-19, our data confirm that breast cancer patients appear to have lower complications and mortality rate than expected in other cancer populations. Most breast cancer patients can be safely treated for their neoplasm during SARS-CoV-2 pandemic. Oncological treatment has no impact on the risk of SARS-CoV-2 complications, and, especially in the curative setting, the treatment should be modified as little as possible. D.J. Pinato is supported by grant funding from the Wellcome Trust Strategic Fund (PS3416) and acknowledges grant support from the Cancer Treatment and Research Trust (CTRT), infrastructural and grant support by the Cancer Research UK Imperial Centre and the NIHR Imperial Biomedical Research Centre. A. Gennari is supported by the AIRC IG Grant, No. 14230, Associazione Italiana per la Ricerca sul Cancro Foundation, Milan, Italy and acknowledge also support from the UPO Aging Project.
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- 2021
23. Systemic pro-inflammatory response identifies patients with cancer with adverse outcomes from SARS-CoV-2 infection: the OnCovid Inflammatory Score
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Dettorre, Gino M., Dolly, Saoirse, Loizidou, Angela, Chester, John, Jackson, Amanda, Mukherjee, Uma, Zambelli, Alberto, Aguilar Company, Juan, Bower, Mark, Sng, Christopher C. T., Salazar Soler, Ramón, Bertuzzi, Alexia, Brunet, Joan, Mesia, Ricard, Sita-Lumsden, Ailsa, Seguí, Elia, Biello, Federica, Generali, Daniele, Grisanti, Salvatore, Seeva, Pavetha, Rizzo, Gianpiero, Libertini, Michela, Maconi, Antonio, Moss, Charlotte, Russell, Beth, Harbeck, Nadia, Vincenzi, Bruno, Bertulli, Rossella, Ottaviani, Diego, Liñan, Raquel, Marrari, Andrea, Carmona García, M. Carmen, Chopra, Neha, Tondini, Carlo Alberto, Mirallas, Oriol, Tovazzi, Valeria, Fotia, Vittoria, Cruz, Claudia Andrea, Saoudi González, Nadia, Felip, Eudald, Roqué, Ariadna, Lee, Alvin J. X., Newsom-Davis, Tom, García Illescas, David, Reyes, Roxana, Wong, Yien Ning Sophia, Ferrante, Daniela, Scotti, Lorenza, Marco Hernández, Javier, Ruiz Camps, Isabel, Patriarca, Andrea, Rimassa, Lorenza, Chiudinelli, Lorenzo, Franchi, Michela, Santoro, Armando, Prat Aparicio, Aleix, Gennari, Alessandra, Van Hemelrijck, Mieke, Tabernero Caturla, Josep, Diamantis, Nikolaos, Pinato, David J., OnCovid study group, Dettorre, G. M., Dolly, S., Loizidou, A., Chester, J., Jackson, A., Mukherjee, U., Zambelli, A., Aguilar-Company, J., Bower, M., Sng, C. C. T., Salazar, R., Bertuzzi, A., Brunet, J., Mesia, R., Sita-Lumsden, A., Segui, E., Biello, F., Generali, D., Grisanti, S., Seeva, P., Rizzo, G., Libertini, M., Maconi, A., Moss, C., Russell, B., Harbeck, N., Vincenzi, B., Bertulli, R., Ottaviani, D., Linan, R., Marrari, A., Carmen Carmona-Garcia, M., Chopra, N., Tondini, C. A., Mirallas, O., Tovazzi, V., Fotia, V., Cruz, C. A., Saoudi-Gonzalez, N., Felip, E., Roque, A., Lee, A. J. X., Newsom-Davis, T., Garcia-Illescas, D., Reyes, R., Wong, Y. N. S., Ferrante, D., Scotti, L., Marco-Hernandez, J., Ruiz-Camps, I., Patriarca, A., Rimassa, L., Chiudinelli, L., Franchi, M., Santoro, A., Prat, A., Gennari, A., Van Hemelrijck, M., Tabernero, J., Diamantis, N., Pinato, D. J., Wellcome Trust, Institut Català de la Salut, [Dettorre GM] Department of Surgery and Cancer, Imperial College London, Hammersmith Hospital, London, UK. [Dolly S] Medical Oncology, Guy’s and St Thomas’ NHS Foundation Trust (GSTT), London, UK. [Loizidou A] Department of Infectious Diseases, Internal Medicine, Institut Jules Bordet, Université Libre de Bruxelles, Brussels, Belgium. [Chester J] Medical Oncology, School of Medicine, Cardiff University, Cardiff, UK. Medical Oncology, Velindre Cancer Centre, Cardiff, UK. [Jackson A] Clinical Trials, Velindre Cancer Centre, Cardiff, UK. [Mukherjee U] Medical Oncology, Barts Health NHS Trust, London, UK. [Aguilar-Company J] Servei d’Oncologia Mèdica, Vall d'Hebron Hospital Universitari, Barcelona, Spain. Vall d’Hebron Institute of Oncology (VHIO), Barcelona, Spain. Servei de Malalties Infeccioses, Vall d'Hebron Hospital Universitari, Barcelona, Spain. [Mirallas O, Saoudi-Gonzalez N, García-Illescas D] Servei d’Oncologia Mèdica, Vall d'Hebron Hospital Universitari, Barcelona, Spain. Vall d’Hebron Institute of Oncology (VHIO), Barcelona, Spain. [Ruiz-Camps I] Servei de Malalties Infeccioses, Vall d'Hebron Hospital Universitari, Barcelona, Spain. [Tabernero J] Servei d’Oncologia Mèdica, Vall d'Hebron Hospital Universitari, Barcelona, Spain. Vall d’Hebron Institute of Oncology (VHIO), Barcelona, Spain. IOB-Quiron, UVic-UCC, Barcelona, Spain, and Vall d'Hebron Barcelona Hospital Campus
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Male ,0301 basic medicine ,Oncology ,Cancer Research ,Comorbidity ,Systemic inflammation ,Otros calificadores::Otros calificadores::/complicaciones [Otros calificadores] ,COVID-19 Testing ,0302 clinical medicine ,Neoplasms ,Immunotherapy Biomarkers ,virosis::infecciones por virus ARN::infecciones por Nidovirales::infecciones por Coronaviridae::infecciones por Coronavirus [ENFERMEDADES] ,80 and over ,Immunology and Allergy ,Medicine ,Hypoalbuminemia ,Young adult ,Càncer ,Multivariate Analysi ,RC254-282 ,COVID-19 (Malaltia) - Complicacions ,Cancer ,Aged, 80 and over ,OnCovid study group ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,Virus Diseases::RNA Virus Infections::Nidovirales Infections::Coronaviridae Infections::Coronavirus Infections [DISEASES] ,Middle Aged ,Prognosis ,Inflamació ,Systemic Inflammatory Response Syndrome ,030220 oncology & carcinogenesis ,Cohort ,Pathological Conditions, Signs and Symptoms::Pathologic Processes::Inflammation::Systemic Inflammatory Response Syndrome [DISEASES] ,Molecular Medicine ,Female ,medicine.symptom ,Life Sciences & Biomedicine ,Human ,Adult ,medicine.medical_specialty ,Prognosi ,Càncer - Epidemiologia ,Immunology ,neoplasias [ENFERMEDADES] ,inflammation mediator ,Young Adult ,03 medical and health sciences ,Internal medicine ,Humans ,afecciones patológicas, signos y síntomas::procesos patológicos::inflamación::síndrome de respuesta inflamatoria sistémica [ENFERMEDADES] ,Aged ,Pharmacology ,Science & Technology ,business.industry ,SARS-CoV-2 ,COVID-19 ,medicine.disease ,inflammation ,inflammation mediators ,Blood Cell Count ,Multivariate Analysis ,Neoplasms [DISEASES] ,Systemic inflammatory response syndrome ,030104 developmental biology ,Neoplasm ,Lymphocytopenia ,business ,Other subheadings::Other subheadings::/complications [Other subheadings] - Abstract
Coronavirus SARS-CoV-2; COVID-19; 2019-nCoV; Inflamació; Mediadors d'inflamació Coronavirus SARS-CoV-2; COVID-19; 2019-nCoV; Inflamación; Mediadores de la inflamación Coronavirus SARS-CoV-2; COVID-19; 2019-nCoV; Inflammation; Inflammation mediators Background Patients with cancer are particularly susceptible to SARS-CoV-2 infection. The systemic inflammatory response is a pathogenic mechanism shared by cancer progression and COVID-19. We investigated systemic inflammation as a driver of severity and mortality from COVID-19, evaluating the prognostic role of commonly used inflammatory indices in SARS-CoV-2-infected patients with cancer accrued to the OnCovid study. Methods In a multicenter cohort of SARS-CoV-2-infected patients with cancer in Europe, we evaluated dynamic changes in neutrophil:lymphocyte ratio (NLR); platelet:lymphocyte ratio (PLR); Prognostic Nutritional Index (PNI), renamed the OnCovid Inflammatory Score (OIS); modified Glasgow Prognostic Score (mGPS); and Prognostic Index (PI) in relation to oncological and COVID-19 infection features, testing their prognostic potential in independent training (n=529) and validation (n=542) sets. Results We evaluated 1071 eligible patients, of which 625 (58.3%) were men, and 420 were patients with malignancy in advanced stage (39.2%), most commonly genitourinary (n=216, 20.2%). 844 (78.8%) had ≥1 comorbidity and 754 (70.4%) had ≥1 COVID-19 complication. NLR, OIS, and mGPS worsened at COVID-19 diagnosis compared with pre-COVID-19 measurement (p
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- 2021
24. Presenting Features and Early Mortality from SARS-CoV-2 Infection in Cancer Patients during the Initial Stage of the COVID-19 Pandemic in Europe
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Rachel Sharkey, Roxana Reyes, Josep Tabernero, Joanne Evans, Daniela Ferrante, Joan Brunet, Andrea Patriarca, Mattia Bellan, Gianluca Gaidano, Isabel Garcia-Fructuoso, Anna Carbó, Christopher C T Sng, Alessandra Gennari, Mark Bower, Sarah Benafif, Alessia Dalla Pria, Lorenza Scotti, Elia Seguí, Riccardo Bruna, Francesca D'Avanzo, Aleix Prat, Claudia Andrea Cruz, Diego Ottaviani, Gianpiero Rizzo, Yien Ning Sophia Wong, Meritxell Mollà, Mario Pirisi, Pier Paolo Sainaghi, Thomas Newsom-Davis, Isabel Ruiz-Camps, Gian Carlo Avanzi, Myria Galazi, Javier Marco-Hernández, David J. Pinato, Federica Biello, Alvin J.X. Lee, Neha Chopra, Juan Aguilar-Company, Carme Carmona, Luigi Mario Castello, Wellcome Trust, Pinato, D, Lee, A, Biello, F, Segui, E, Aguilar-Company, J, Carbo, A, Bruna, R, Bower, M, Rizzo, G, Benafif, S, Carmona, C, Chopra, N, Cruz, C, D'Avanzo, F, Evans, J, Galazi, M, Garcia-Fructuoso, I, Pria, A, Newsom-Davis, T, Ottaviani, D, Patriarca, A, Reyes, R, Sharkey, R, Sng, C, Wong, Y, Ferrante, D, Scotti, L, Avanzi, G, Bellan, M, Castello, L, Marco-Hernandez, J, Molla, M, Pirisi, M, Ruiz-Camps, I, Sainaghi, P, Gaidano, G, Brunet, J, Tabernero, J, Prat, A, Gennari, A, Institut Català de la Salut, [Pinato DJ] Department of Surgery & Cancer, Imperial College London, Hammersmith Hospital, London, UK. [Lee AJX] Department of Oncology, University College London Hospitals, London, UK. [Biello F] Department of Translational Medicine, Division of Oncology, University of Piemonte Orientale and Maggiore della Carita’ Hospital, Novara, Italy. [Seguí E] Department of Medical Oncology, Hospital Clinic, Barcelona, Spain. [Aguilar-Company J] Servei d’Oncologia Mèdica, Vall d’Hebron Hospital Universitari, Barcelona, Spain. Vall d’Hebron Institute of Oncology (VHIO), Barcelona, Spain. Servei de Malalties Infeccioses, Vall d’Hebron Hospital Universitari, Barcelona, Spain. [Carbó A] Department of Medical Oncology, Catalan Institute of Oncology, University Hospital Josep Trueta, Girona, Spain. [Ruiz-Camps I] Servei de Malalties Infeccioses, Vall d’Hebron Hospital Universitari, Barcelona, Spain. [Tabernero J] Servei d’Oncologia Mèdica, Vall d’Hebron Hospital Universitari, Barcelona, Spain. Vall d’Hebron Institute of Oncology (VHIO), Barcelona, Spain, and Vall d'Hebron Barcelona Hospital Campus
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0301 basic medicine ,Cancer Research ,medicine.medical_specialty ,Coronaviru ,coronavirus ,Disease ,Malignancy ,outcomes ,lcsh:RC254-282 ,survival ,Article ,neoplasias [ENFERMEDADES] ,03 medical and health sciences ,Otros calificadores::Otros calificadores::/complicaciones [Otros calificadores] ,0302 clinical medicine ,Internal medicine ,Intensive care ,Other subheadings::Other subheadings::Other subheadings::/mortality [Other subheadings] ,Pandemic ,Càncer - Mortalitat ,medicine ,virosis::infecciones por virus ARN::infecciones por Nidovirales::infecciones por Coronaviridae::infecciones por Coronavirus [ENFERMEDADES] ,cancer ,1112 Oncology and Carcinogenesis ,Stage (cooking) ,COVID-19 (Malaltia) - Complicacions ,Outcome ,Otros calificadores::Otros calificadores::Otros calificadores::/mortalidad [Otros calificadores] ,business.industry ,SARS-CoV-2 ,Outbreak ,Cancer ,COVID-19 ,Virus Diseases::RNA Virus Infections::Nidovirales Infections::Coronaviridae Infections::Coronavirus Infections [DISEASES] ,medicine.disease ,lcsh:Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,mortality ,Neoplasms [DISEASES] ,030104 developmental biology ,Oncology ,030220 oncology & carcinogenesis ,business ,Complication ,Other subheadings::Other subheadings::/complications [Other subheadings] - Abstract
We describe the outcomes in cancer patients during the initial outbreak of the COVID-19 in Europe from the retrospective, multi-center observational OnCovid study. We identified 204 cancer patients from eight centers in the United Kingdom, Italy, and Spain aged >, 18 (mean = 69) and diagnosed with COVID-19 between February 26th and April 1st, 2020. A total of 127 (62%) were male, 184 (91%) had a diagnosis of solid malignancy, and 103 (51%) had non-metastatic disease. A total of 161 (79%) had >, 1 co-morbidity. A total of 141 (69%) patients had >, 1 COVID-19 complication. A total of 36 (19%) were escalated to high-dependency or intensive care. A total of 59 (29%) died, 53 (26%) were discharged, and 92 (45%) were in-hospital survivors. Mortality was higher in patients aged >, 65 (36% versus 16%), in those with >, 2 co-morbidities (40% versus 18%) and developing >, 1 complication from COVID-19 (38% versus 4%, p = 0.004). Multi-variable analyses confirmed age >, 65 and >, 2 co-morbidities to predict for patient mortality independent of tumor stage, active malignancy, or anticancer therapy. During the early outbreak of SARS-CoV-2 infection in Europe co-morbid burden and advancing age predicted for adverse disease course in cancer patients. The ongoing OnCovid study will allow us to compare risks and outcomes in cancer patients between the initial and later stages of the COVID-19 pandemic.
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- 2020
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25. Clinical portrait of the SARS-CoV-2 epidemic in european patients with cancer
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David J. Pinato, Alberto Zambelli, Juan Aguilar-Company, Mark Bower, Christopher C.T. Sng, Ramon Salazar, Alexia Bertuzzi, Joan Brunet, Ricard Mesia, Elia Seguí, Federica Biello, Daniele Generali, Salvatore Grisanti, Gianpiero Rizzo, Michela Libertini, Antonio Maconi, Nadia Harbeck, Bruno Vincenzi, Rossella Bertulli, Diego Ottaviani, Anna Carbó, Riccardo Bruna, Sarah Benafif, Andrea Marrari, Rachel Wuerstlein, M. Carmen Carmona-Garcia, Neha Chopra, Carlo Tondini, Oriol Mirallas, Valeria Tovazzi, Marta Betti, Salvatore Provenzano, Vittoria Fotia, Claudia Andrea Cruz, Alessia Dalla Pria, Francesca D'Avanzo, Joanne S. Evans, Nadia Saoudi-Gonzalez, Eudald Felip, Myria Galazi, Isabel Garcia-Fructuoso, Alvin J.X. Lee, Thomas Newsom-Davis, Andrea Patriarca, David García-Illescas, Roxana Reyes, Palma Dileo, Rachel Sharkey, Yien Ning Sophia Wong, Daniela Ferrante, Javier Marco-Hernández, Anna Sureda, Clara Maluquer, Isabel Ruiz-Camps, Gianluca Gaidano, Lorenza Rimassa, Lorenzo Chiudinelli, Macarena Izuzquiza, Alba Cabirta, Michela Franchi, Armando Santoro, Aleix Prat, Josep Tabernero, Alessandra Gennari, Gian Carlo Avanzi, Mattia Bellan, Luigi Mario Castello, Maria Martinez, Meritxell Mollà, Mario Pirisi, Lorenza Scotti, Judith Swallow, Pinato, D. J., Zambelli, A., Aguilar-Company, J., Bower, M., Sng, C. C. T., Salazar, R., Bertuzzi, A., Brunet, J., Mesia, R., Segui, E., Biello, F., Generali, D., Grisanti, S., Rizzo, G., Libertini, M., Maconi, A., Harbeck, N., Vincenzi, B., Bertulli, R., Ottaviani, D., Carbo, A., Bruna, R., Benafif, S., Marrari, A., Wuerstlein, R., Carmona-Garcia, M. C., Chopra, N., Tondini, C., Mirallas, O., Tovazzi, V., Betti, M., Provenzano, S., Fotia, V., Cruz, C. A., Pria, A. D., D'Avanzo, F., Evans, J. S., Saoudi-Gonzalez, N., Felip, E., Galazi, M., Garcia-Fructuoso, I., Lee, A. J. X., Newsom-Davis, T., Patriarca, A., Garcia-Illescas, D., Reyes, R., Dileo, P., Sharkey, R., Wong, Y. N. S., Ferrante, D., Marco-Hernandez, J., Sureda, A., Maluquer, C., Ruiz-Camps, I., Gaidano, G., Rimassa, L., Chiudinelli, L., Izuzquiza, M., Cabirta, A., Franchi, M., Santoro, A., Prat, A., Tabernero, J., and Gennari, A.
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0301 basic medicine ,medicine.medical_specialty ,medicine.medical_treatment ,Population ,MEDLINE ,risk stratification ,Targeted therapy ,03 medical and health sciences ,0302 clinical medicine ,Breast cancer ,SARS-CoV-2 pandemic ,oncology practice ,Internal medicine ,Pandemic ,medicine ,education ,education.field_of_study ,Chemotherapy ,Research Briefs ,business.industry ,Mortality rate ,Cancer ,medicine.disease ,3. Good health ,030104 developmental biology ,Oncology ,030220 oncology & carcinogenesis ,business - Abstract
Higher risk of death from COVID-19 among patients with cancer was correlated with male sex, greater age, presence of multiple comorbidities, advanced-stage disease, and active disease; there was no association between risk and anticancer treatment., The SARS-CoV-2 pandemic significantly affected oncology practice across the globe. There is uncertainty as to the contribution of patients' demographics and oncologic features to severity and mortality from COVID-19 and little guidance as to the role of anticancer and anti–COVID-19 therapy in this population. In a multicenter study of 890 patients with cancer with confirmed COVID-19, we demonstrated a worsening gradient of mortality from breast cancer to hematologic malignancies and showed that male gender, older age, and number of comorbidities identify a subset of patients with significantly worse mortality rates from COVID-19. Provision of chemotherapy, targeted therapy, or immunotherapy did not worsen mortality. Exposure to antimalarials was associated with improved mortality rates independent of baseline prognostic factors. This study highlights the clinical utility of demographic factors for individualized risk stratification of patients and supports further research into emerging anti–COVID-19 therapeutics in SARS-CoV-2–infected patients with cancer. Significance: In this observational study of 890 patients with cancer diagnosed with SARS-CoV-2, mortality was 33.6% and predicted by male gender, age ≥65, and comorbidity burden. Delivery of cancer therapy was not detrimental to severity or mortality from COVID-19. These patients should be the focus of shielding efforts during the SARS-CoV-2 pandemic. This article is highlighted in the In This Issue feature, p. 1426
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- 2020
26. Distributed Control of Multirobot Systems With Global Connectivity Maintenance
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Andrea Gasparri, Lorenzo Sabattini, Nikhil Chopra, Cristian Secchi, Sabattini, L, Secchi, C, Chopra, N, and Gasparri, Andrea
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Algebraic connectivity ,Computer science ,Distributed computing ,multi-robot systems ,connectivity ,Graph theory ,Mobile robot ,Maintenance engineering ,Decentralised system ,Computer Science Applications ,Computer Science::Robotics ,Control and Systems Engineering ,Control theory ,Distributed parameter system ,Graph (abstract data type) ,Robot ,Electrical and Electronic Engineering - Abstract
This study introduces a control algorithm that, exploiting a completely decentralized estimation strategy for the algebraic connectivity of the graph, ensures the connectivity maintenance property for multi robot systems, in the presence of a generic (bounded) additional control term. This result is obtained by driving the robots along the negative gradient of an appropriately defined function of the algebraic connectivity. The proposed strategy is then enhanced with the introduction of the concept of critical robots, that is robots for which the loss of a single communication link might cause the disconnection of the communication graph. Limiting the control action to critical robots will be shown to reduce the control effort that is introduced by the proposed connectivity maintenance control law and to mitigate its effect on the additional (desired) control term.
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- 2013
27. Enhanced Connectivity Maintenance for Multi-Robot Systems
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Cristian Secchi, Andrea Gasparri, Lorenzo Sabattini, Nikhil Chopra, Sabattini, L, Gasparri, Andrea, Secchi, C, and Chopra, N.
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Engineering ,Robotic systems ,business.industry ,Distributed computing ,Networked robots ,Mobile robots and vehicles ,Graph (abstract data type) ,General Medicine ,Disconnection ,Multi cooperative robot control, Networked robots, Mobile robots and vehicles ,business ,Decentralised system ,Multi cooperative robot control - Abstract
In this work, the decentralized control law proposed in [Sabattini et al., 2011b] for multi-robot connectivity maintenance is enhanced by means of a selective action. The idea is to identify critical agents, i.e. agents for which a disconnection might cause the split of the communication graph, and limit the control action to those agents. The objective is twofold: to reduce the control effort introduced by the connectivity maintenance control action as well as to avoid unnecessary action of the connectivity maintenance controller, thus reducing its effect on the overall performances of the system. A theoretical analysis of the proposed control law is discussed. Simulations along with experimental results are given to corroborate the theoretical results.
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- 2012
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