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Ahmed A, Brown A, Pollack Y, Vazhappilly J, Perry C, Thomas ER, Krishnan S, Dozor AJ. Relationship between FEV 1/FVC and age in children with asthma. Pediatr Pulmonol 2024; 59:1402-1409. [PMID: 38426807 DOI: 10.1002/ppul.26927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 02/06/2024] [Accepted: 02/12/2024] [Indexed: 03/02/2024]
Abstract
INTRODUCTION Forced expiratory volume in the first second (FEV1)/forced vital capacity (FVC) normally decreases through childhood, increases briefly during early adolescence, and then declines throughout life. The physiology behind this temporary increase during early adolescence is not well understood. The objective of this study was to determine if this pattern occurs in children with asthma. DESIGN Single-center, cross-sectional, retrospective analysis of pulmonary function tests obtained over a 5-year period in children 5-18 years of age with persistent asthma. RESULTS A total of 1793 patients satisfied all inclusion and exclusion criteria. The mean age (±SD) was 10.4 ± 3.8 years. Forty-eight percent were female. Mean FEV1/FVC was 0.83 ± 0.09. FEV1/FVC was lower at 5 years of age than in healthy children, declined from age 5 to 11 by 5.7% compared to 7.3% in healthy girls, and 5.8% compared to 9.4% in healthy boys. FEV1/FVC increased in early adolescence, but at age 16, was 5.6% lower in male children compared to healthy children, and 5.4% lower in females. The ratio was lower in obese children at all ages but demonstrated the same curvilinear shape as healthy children. In absolute terms, FEV1 grew proportionately more than FVC during early adolescence, so the ratio of FEV1/FVC increased during that period. The curvilinear shape of the curve remained in postbronchodilator testing, though significantly blunted. CONCLUSIONS FEV1/FVC is lower in children with persistent asthma than healthy children, but the "Shepherd's Hook" pattern is preserved. This was true in obese patients with asthma, although their FEV1/FVC ratios were lower throughout all stages of childhood and adolescence.
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Affiliation(s)
- Amal Ahmed
- Boston Children's Health Physicians, Valhalla, New York, USA
| | - Amy Brown
- Boston Children's Health Physicians, Valhalla, New York, USA
- Maria Fareri Children's Hospital at Westchester Medical Center, Valhalla, New York, USA
- New York Medical College, Valhalla, New York, USA
| | - Yehudit Pollack
- Boston Children's Health Physicians, Valhalla, New York, USA
- Maria Fareri Children's Hospital at Westchester Medical Center, Valhalla, New York, USA
- New York Medical College, Valhalla, New York, USA
| | | | | | | | - Sankaran Krishnan
- Boston Children's Health Physicians, Valhalla, New York, USA
- Maria Fareri Children's Hospital at Westchester Medical Center, Valhalla, New York, USA
- New York Medical College, Valhalla, New York, USA
| | - Allen J Dozor
- Boston Children's Health Physicians, Valhalla, New York, USA
- Maria Fareri Children's Hospital at Westchester Medical Center, Valhalla, New York, USA
- New York Medical College, Valhalla, New York, USA
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Rischard F, Altman N, Szmuszkovicz J, Sciurba F, Berman-Rosenzweig E, Lee S, Krishnan S, Truong N, Wood J, Finn AV. Long-Term Effects of COVID-19 on the Cardiopulmonary System in Adults and Children: Current Status and Questions to be Resolved by the National Institutes of Health Researching COVID to Enhance Recovery Initiative. Chest 2024; 165:978-989. [PMID: 38185377 PMCID: PMC11026169 DOI: 10.1016/j.chest.2023.12.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 12/14/2023] [Accepted: 12/21/2023] [Indexed: 01/09/2024] Open
Abstract
TOPIC IMPORTANCE Long COVID may occur in at least 10% of patients recovering from SARS-CoV-2 infection and often is associated with debilitating symptoms. Among the organ systems that might be involved in its pathogenesis, the respiratory and cardiovascular systems may be central to common symptoms seen in survivors of COVID-19, including fatigue, dyspnea, chest pain, cough, and exercise intolerance. Understand the exact symptomatology, causes, and effects of long COVID on the heart and lungs may help us to discover new therapies. To that end, the National Institutes of Health is sponsoring a national study population of diverse volunteers to support large-scale studies on the long-term effects of COVID-19. REVIEW FINDINGS The National Institutes of Health Researching COVID to Enhance Recovery (RECOVER) initiative currently is recruiting participants in the United States to answer critical questions about long COVID. The study comprises adult and pediatric cohorts as well as an electronic health record cohort. Based on symptoms, individuals undergo prespecified medical testing to understand whether abnormalities can be detected and are followed up longitudinally. Herein, we outline current understanding of the clinical symptoms and pathophysiologic features of long COVID with respect to the cardiopulmonary system in adults and children and then determine how the clinical, electronic health record, and autopsy cohorts of the RECOVER initiative will attempt to answer the most pressing questions surrounding the long-term effects of COVID-19. SUMMARY Data generated from the RECOVER initiative will provide guidance about missing gaps in our knowledge about long COVID and how they might be filled by data gathered through the RECOVER initiative.
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Affiliation(s)
- Franz Rischard
- Department of Medicine, University of Arizona, Tucson, AZ
| | - Natasha Altman
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO
| | - Jacqueline Szmuszkovicz
- Children's Hospital Los Angeles, Keck School of Medicine of the University of Southern California, Los Angeles, CA; Division of Cardiology, Keck School of Medicine of the University of Southern California, Los Angeles, CA
| | - Frank Sciurba
- Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA
| | | | - Simon Lee
- Heart Center, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL
| | - Sankaran Krishnan
- Boston Children's Health Physicians, New York Medical College, Valhalla, NY
| | - Ngan Truong
- Department of Pediatrics, University of Utah School of Medicine, Salt Lake City, UT
| | - John Wood
- Department of Pediatrics and Radiology, Keck School of Medicine of the University of Southern California, Los Angeles, CA
| | - Aloke V Finn
- CVPath Institute, Gaithersburg, University of Maryland School of Medicine, Baltimore, MD; Department of Medicine, University of Maryland School of Medicine, Baltimore, MD.
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Astudillo Y, Kibrom S, Pereira T, Solomon S, Krishnan S, Samsonov D. Association between anxiety and elevated blood pressure in adolescent patients: a single-center cross-sectional study. J Hypertens 2024; 42:644-649. [PMID: 38230613 PMCID: PMC10906197 DOI: 10.1097/hjh.0000000000003652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 11/16/2023] [Accepted: 12/03/2023] [Indexed: 01/18/2024]
Abstract
OBJECTIVE Although anxiety is known to be associated with elevated blood pressure and hypertension in adults, this has not been studied in children. The aim of this study was to determine the association between anxiety and elevated blood pressures in adolescents. METHODS Adolescents, aged 12-18 years old, referred to the nephrology clinic were eligible to participate. Elevated blood pressure was defined as either SBP or DBP measurement above the 95th percentile for age, height, and sex. Participants were evaluated for anxiety using the validated Screen for Child Anxiety Related Disorders questionnaire filled independently by the child (SCARED-C) and parent (SCARED-P) evaluating the child. RESULTS Two hundred adolescents participated in this study. Thirty-one (53%) of SCARED-P-positive participants were found to have elevated blood pressure compared with 27 (19%) of SCARED-P negative, P 0.03. Twenty-five (43%) of SCARED-P positive had elevated DBP compared with 31 (28%) of SCARED-P negative ( P 0.003). In SCARED-P positive, mean DBP (78.4 ± 9.9) was higher compared with SCARED-P negative (74.9 ± 9.2) ( P 0.03). In a subgroup of adolescents (№ 130) not treated with blood pressure medications mean DBP was higher in both SCARED-P (79.0 ± 10.1) and SCARED-C (77.1 ± 10.4) positive groups compared with SCARED-P (73.6 ± 9.3) and SCARED-C (73 ± 8.9) negative, respectively. CONCLUSION Our study demonstrates an association between anxiety and elevated DBP in adolescent children. Screening adolescents for anxiety should be a part of the routine evaluation of adolescent children.
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Affiliation(s)
- Yaritzy Astudillo
- Maria Fareri Children's Hospital, Westchester Medical Center, New York Medical College, Valhalla, New York
| | - Sara Kibrom
- Stanford University School of Medicine, Stanford Children's Health, San Francisco, California, USA
| | - Tanya Pereira
- Maria Fareri Children's Hospital, Westchester Medical Center, New York Medical College, Valhalla, New York
| | - Sonia Solomon
- Maria Fareri Children's Hospital, Westchester Medical Center, New York Medical College, Valhalla, New York
| | - Sankaran Krishnan
- Maria Fareri Children's Hospital, Westchester Medical Center, New York Medical College, Valhalla, New York
| | - Dmitry Samsonov
- Maria Fareri Children's Hospital, Westchester Medical Center, New York Medical College, Valhalla, New York
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4
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Robinson ML, Hahn PG, Inouye BD, Underwood N, Whitehead SR, Abbott KC, Bruna EM, Cacho NI, Dyer LA, Abdala-Roberts L, Allen WJ, Andrade JF, Angulo DF, Anjos D, Anstett DN, Bagchi R, Bagchi S, Barbosa M, Barrett S, Baskett CA, Ben-Simchon E, Bloodworth KJ, Bronstein JL, Buckley YM, Burghardt KT, Bustos-Segura C, Calixto ES, Carvalho RL, Castagneyrol B, Chiuffo MC, Cinoğlu D, Cinto Mejía E, Cock MC, Cogni R, Cope OL, Cornelissen T, Cortez DR, Crowder DW, Dallstream C, Dáttilo W, Davis JK, Dimarco RD, Dole HE, Egbon IN, Eisenring M, Ejomah A, Elderd BD, Endara MJ, Eubanks MD, Everingham SE, Farah KN, Farias RP, Fernandes AP, Fernandes GW, Ferrante M, Finn A, Florjancic GA, Forister ML, Fox QN, Frago E, França FM, Getman-Pickering AS, Getman-Pickering Z, Gianoli E, Gooden B, Gossner MM, Greig KA, Gripenberg S, Groenteman R, Grof-Tisza P, Haack N, Hahn L, Haq SM, Helms AM, Hennecke J, Hermann SL, Holeski LM, Holm S, Hutchinson MC, Jackson EE, Kagiya S, Kalske A, Kalwajtys M, Karban R, Kariyat R, Keasar T, Kersch-Becker MF, Kharouba HM, Kim TN, Kimuyu DM, Kluse J, Koerner SE, Komatsu KJ, Krishnan S, Laihonen M, Lamelas-López L, LaScaleia MC, Lecomte N, Lehn CR, Li X, Lindroth RL, LoPresti EF, Losada M, Louthan AM, Luizzi VJ, Lynch SC, Lynn JS, Lyon NJ, Maia LF, Maia RA, Mannall TL, Martin BS, Massad TJ, McCall AC, McGurrin K, Merwin AC, Mijango-Ramos Z, Mills CH, Moles AT, Moore CM, Moreira X, Morrison CR, Moshobane MC, Muola A, Nakadai R, Nakajima K, Novais S, Ogbebor CO, Ohsaki H, Pan VS, Pardikes NA, Pareja M, Parthasarathy N, Pawar RR, Paynter Q, Pearse IS, Penczykowski RM, Pepi AA, Pereira CC, Phartyal SS, Piper FI, Poveda K, Pringle EG, Puy J, Quijano T, Quintero C, Rasmann S, Rosche C, Rosenheim LY, Rosenheim JA, Runyon JB, Sadeh A, Sakata Y, Salcido DM, Salgado-Luarte C, Santos BA, Sapir Y, Sasal Y, Sato Y, Sawant M, Schroeder H, Schumann I, Segoli M, Segre H, Shelef O, Shinohara N, Singh RP, Smith DS, Sobral M, Stotz GC, Tack AJM, Tayal M, Tooker JF, Torrico-Bazoberry D, Tougeron K, Trowbridge AM, Utsumi S, Uyi O, Vaca-Uribe JL, Valtonen A, van Dijk LJA, Vandvik V, Villellas J, Waller LP, Weber MG, Yamawo A, Yim S, Zarnetske PL, Zehr LN, Zhong Z, Wetzel WC. Plant size, latitude, and phylogeny explain within-population variability in herbivory. Science 2023; 382:679-683. [PMID: 37943897 DOI: 10.1126/science.adh8830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Accepted: 09/27/2023] [Indexed: 11/12/2023]
Abstract
Interactions between plants and herbivores are central in most ecosystems, but their strength is highly variable. The amount of variability within a system is thought to influence most aspects of plant-herbivore biology, from ecological stability to plant defense evolution. Our understanding of what influences variability, however, is limited by sparse data. We collected standardized surveys of herbivory for 503 plant species at 790 sites across 116° of latitude. With these data, we show that within-population variability in herbivory increases with latitude, decreases with plant size, and is phylogenetically structured. Differences in the magnitude of variability are thus central to how plant-herbivore biology varies across macroscale gradients. We argue that increased focus on interaction variability will advance understanding of patterns of life on Earth.
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Affiliation(s)
- M L Robinson
- Department of Entomology, Michigan State University, East Lansing, MI, USA
- Department of Biology, Utah State University, Logan, UT, USA
| | - P G Hahn
- Entomology and Nematology Department, University of Florida, Gainesville, FL, USA
| | - B D Inouye
- Department of Biological Science, Florida State University, Tallahassee, FL, USA
| | - N Underwood
- Department of Biological Science, Florida State University, Tallahassee, FL, USA
| | - S R Whitehead
- Department of Biological Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
| | - K C Abbott
- Department of Biology, Case Western Reserve University, Cleveland, OH, USA
| | - E M Bruna
- Center for Latin American Studies, University of Florida, Gainesville, FL, USA
- Department of Wildlife Ecology and Conservation, University of Florida, Gainesville, FL, USA
| | - N I Cacho
- Instituto de Biología, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - L A Dyer
- Biology Department, University of Nevada, Reno, Reno, NV, USA
| | - L Abdala-Roberts
- Departamento de Ecología Tropical, Universidad Autónoma de Yucatán, Mérida, Yucatán, México
| | - W J Allen
- Bio-Protection Research Centre, University of Canterbury, Christchurch, New Zealand
| | - J F Andrade
- Departamento de Sistemática e Ecologia Universidade Federal da Paraíba, João Pessoa, Brazil
| | - D F Angulo
- Centro de Investigación Científica de Yucatán, Departamento de Recursos Naturales, Mérida, Yucatán, México
| | - D Anjos
- Instituto de Biologia, Universidade Federal de Uberlândia, Uberlândia, MG, Brazil
| | - D N Anstett
- Department of Entomology, Michigan State University, East Lansing, MI, USA
- Plant Resilience Institute, Michigan State University, East Lansing, MI, USA
- Department of Plant Biology, Michigan State University, East Lansing, MI, USA
| | - R Bagchi
- Department of Ecology and Evolutionary Biology, University of Connecticut, Storrs, CT, USA
| | - S Bagchi
- Centre for Ecological Sciences, Indian Institute of Science, Bangalore, Karnataka, India
| | - M Barbosa
- Department of Genetics, Ecology and Evolution, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - S Barrett
- Department of Biodiversity Conservation & Attractions Western Australia, Albany, Western Australia, Australia
| | - C A Baskett
- Institute of Science and Technology Austria, Klosterneuburg, Austria
| | - E Ben-Simchon
- Department of Natural Resources, Institute of Plant Sciences, Agricultural Research Organization - Volcani Institute, Rishon Le Tzion, Israel
- Robert H. Smith Faculty of Agriculture, Food, and Environment, The Hebrew University of Jerusalem, Rehovot, Israel
| | - K J Bloodworth
- Department of Biology, University of North Carolina Greensboro, Greensboro, NC, USA
| | - J L Bronstein
- Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, AZ, USA
| | - Y M Buckley
- School of Natural Sciences, Zoology, Trinity College Dublin, Dublin, Ireland
| | - K T Burghardt
- Department of Entomology, University of Maryland, College Park, MD, USA
| | - C Bustos-Segura
- Institute of Biology, University of Neuchatel, Neuchatel, Switzerland
| | - E S Calixto
- Entomology and Nematology Department, University of Florida, Gainesville, FL, USA
| | - R L Carvalho
- Institute of Advanced Studies, University of São Paulo, São Paulo, Brazil
| | | | - M C Chiuffo
- Grupo de Ecología de Invasiones, INIBIOMA, Universidad Nacional del Comahue, CONICET, San Carlos de Bariloche, Río Negro, Argentina
| | - D Cinoğlu
- Department of Integrative Biology, The University of Texas at Austin, Austin, TX, USA
| | - E Cinto Mejía
- Department of Entomology, Michigan State University, East Lansing, MI, USA
| | - M C Cock
- Facultad de Ciencias Exactas y Naturales, Instituto de Ciencias de la Tierra y Ambientales de La Pampa, Santa Rosa, La Pampa, Argentina
| | - R Cogni
- Department of Ecology, University of São Paulo, São Paulo, Brazil
| | - O L Cope
- Department of Entomology, Michigan State University, East Lansing, MI, USA
- Department of Biology, Whitworth University, Spokane, WA, USA
| | - T Cornelissen
- Department of Genetics, Ecology and Evolution, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - D R Cortez
- Department of Biology, California State University San Bernardino, San Bernardino, CA, USA
| | - D W Crowder
- Department of Entomology, Washington State University, Pullman, WA, USA
| | - C Dallstream
- Department of Biology, McGill University, Montreal, Quebec, Canada
| | - W Dáttilo
- Red de Ecoetología, Instituto de Ecología AC, Xalapa, Veracruz, Mexico
| | - J K Davis
- Department of Entomology, Cornell University, Ithaca, NY, USA
| | - R D Dimarco
- Department of Biology and Biochemistry, University of Houston, Houston, TX, USA
- Grupo de Ecología de Poblaciones de Insectos, IFAB, San Carlos de Bariloche, Río Negro, Argentina
| | - H E Dole
- Department of Entomology, Michigan State University, East Lansing, MI, USA
| | - I N Egbon
- Department of Animal and Environmental Biology, University of Benin, Benin City, Nigeria
| | - M Eisenring
- Forest Entomology, Swiss Federal Research Institute WSL, Birmensdorf, Switzerland
| | - A Ejomah
- Department of Animal and Environmental Biology, University of Benin, Benin City, Nigeria
| | - B D Elderd
- Department of Biological Sciences, Louisiana State University, Baton Rouge, LA, USA
| | - M-J Endara
- Grupo de Investigación en Ecología y Evolución en los Trópicos-EETROP, Universidad de las Américas, Quito, Ecuador
| | - M D Eubanks
- Department of Entomology, Texas A&M University, College Station, TX, USA
| | - S E Everingham
- Institute of Plant Sciences, University of Bern, Bern, Switzerland
- Evolution & Ecology Research Centre, University of New South Wales Sydney, Sydney, Australia
| | - K N Farah
- Department of Biology, Washington University in St. Louis, St. Louis, MO, USA
| | - R P Farias
- Instituto de Biologia, Universidade Federal da Bahia, Salvador, Bahia, Brasil
| | - A P Fernandes
- Department of Botany, Ganpat Parsekar College of Education Harmal, Pernem, Goa, India
| | - G W Fernandes
- Department of Genetics, Ecology and Evolution, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
- Knowledge Center for Biodiversity, Brazil
| | - M Ferrante
- Faculty of Agricultural Sciences and Environment, University of the Azores, Ponta Delgada, Portugal
- Department of Crop Sciences, University of Göttingen, Göttingen, Germany
| | - A Finn
- School of Natural Sciences, Zoology, Trinity College Dublin, Dublin, Ireland
| | - G A Florjancic
- Department of Biological Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
| | - M L Forister
- Biology Department, University of Nevada, Reno, Reno, NV, USA
| | - Q N Fox
- Department of Biology, Washington University in St. Louis, St. Louis, MO, USA
| | - E Frago
- CIRAD, UMR CBGP, INRAE, Institut Agro, IRD, Université Montpellier, Montpellier, France
| | - F M França
- School of Biological Sciences, University of Bristol, Bristol, UK
- Programa de Pós-Graduação em Ecologia, Universidade Federal do Pará, Belém, Pará, Brasil
| | | | - Z Getman-Pickering
- Department of Mechanical and Industrial Engineering, University of Massachusetts Amherst, Amherst, MA, USA
| | - E Gianoli
- Departamento de Biología, Universidad de La Serena, La Serena, Chile
| | - B Gooden
- CSIRO Black Mountain Laboratories, CSIRO Health and Biosecurity, Canberra, Australia
| | - M M Gossner
- Forest Entomology, Swiss Federal Research Institute WSL, Birmensdorf, Switzerland
- Institute of Terrestrial Ecosystems, Department of Environmental Systems Science, ETH Zurich, Zurich, Switzerland
| | - K A Greig
- Department of Integrative Biology, The University of Texas at Austin, Austin, TX, USA
| | - S Gripenberg
- School of Biological Sciences, University of Reading, Reading, UK
| | - R Groenteman
- Manaaki Whenua - Landcare Research, Lincoln, New Zealand
| | - P Grof-Tisza
- Institute of Biology, University of Neuchatel, Neuchatel, Switzerland
| | - N Haack
- Independent Institute for Environmental Issues, Halle, Germany
| | - L Hahn
- Molecular Evolution and Systematics of Animals, University of Leipzig, Leipzig, Germany
| | - S M Haq
- Wildlife Crime Control Division, Wildlife Trust of India, Noida, Uttar Pradesh, India
| | - A M Helms
- Department of Entomology, Texas A&M University, College Station, TX, USA
| | - J Hennecke
- Systematic Botany and Functional Biodiversity, Leipzig University, Leipzig, Germany
- German Centre for Integrative Biodiversity Research (iDiv), Leipzig, Germany
| | - S L Hermann
- Department of Entomology, The Pennsylvania State University, University Park, PA, USA
| | - L M Holeski
- Department of Biological Sciences and Center for Adaptive Western Landscapes, Northern Arizona University, Flagstaff, AZ, USA
| | - S Holm
- Department of Environmental and Biological Sciences, University of Eastern Finland, Joensuu, Finland
- Department of Zoology, University of Tartu, Tartu, Estonia
| | - M C Hutchinson
- Department of Life and Environmental Sciences, University of California, Merced, Merced, CA, USA
| | - E E Jackson
- School of Biological Sciences, University of Reading, Reading, UK
| | - S Kagiya
- Field Science Center for Northern Biosphere, Hokkaido University, Sapporo, Hokkaido, Japan
| | - A Kalske
- Department of Biology, University of Turku, Turku, Finland
| | - M Kalwajtys
- Department of Entomology, Michigan State University, East Lansing, MI, USA
| | - R Karban
- Department of Entomology and Nematology, University of California Davis, Davis, CA, USA
| | - R Kariyat
- Department of Entomology and Plant Pathology, University of Arkansas, Fayetteville, AR, USA
| | - T Keasar
- Department of Biology and the Environment, University of Haifa - Oranim, Oranim, Tivon, Israel
| | - M F Kersch-Becker
- Department of Entomology, The Pennsylvania State University, University Park, PA, USA
| | - H M Kharouba
- Department of Biology, University of Ottawa, Ottawa, Ontario, Canada
| | - T N Kim
- Department of Entomology, Kansas State University, Manhattan, KS, USA
| | - D M Kimuyu
- Department of Natural Resources, Karatina University, Karatina, Kenya
| | - J Kluse
- Department of Biological Sciences, Louisiana State University, Baton Rouge, LA, USA
| | - S E Koerner
- Department of Biology, University of North Carolina Greensboro, Greensboro, NC, USA
| | - K J Komatsu
- Department of Biology, University of North Carolina Greensboro, Greensboro, NC, USA
- Smithsonian Environmental Research Center, Edgewater, MD, USA
| | - S Krishnan
- Center for Sustainable Future, Amrita University and EIACP RP, Amrita Viswa Vidyapeetham, Coimbatore, India
| | - M Laihonen
- Biodiversity Unit, University of Turku, Turku, Finland
| | - L Lamelas-López
- Faculty of Agricultural Sciences and Environment, University of the Azores, Ponta Delgada, Portugal
| | - M C LaScaleia
- Department of Ecology and Evolutionary Biology, University of Connecticut, Storrs, CT, USA
| | - N Lecomte
- Canada Research Chair in Polar and Boreal Ecology, Department of Biology and Centre d'Études Nordiques, Université de Moncton, Moncton, Canada
| | - C R Lehn
- Biological Sciences Course, Instituto Federal Farroupilha, Panambi, RS, Brazil
| | - X Li
- College of Resources and Environmental sciences, Jilin Agricultural University, Changchun, China
| | - R L Lindroth
- Department of Entomology, University of Wisconsin-Madison, Madison, WI, USA
| | - E F LoPresti
- Department of Biological Sciences, University of South Carolina, Columbia, SC, USA
| | - M Losada
- Department of Soil Science and Agricultural Chemistry, University of Santiago de Compostela, Santiago de Compostela, A Coruña, Spain
| | - A M Louthan
- Division of Biology, Kansas State University, Manhattan, KS, USA
| | - V J Luizzi
- Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, AZ, USA
| | - S C Lynch
- Division of Biology, Kansas State University, Manhattan, KS, USA
| | - J S Lynn
- Department of Biological Sciences, University of Bergen, Bergen, Norway
- Department of Earth and Environmental Sciences, University of Manchester, Manchester, UK
| | - N J Lyon
- Department of Entomology, Michigan State University, East Lansing, MI, USA
| | - L F Maia
- Bio-Protection Research Centre, University of Canterbury, Christchurch, New Zealand
- School of Biological Sciences, University of Bristol, Bristol, UK
| | - R A Maia
- Department of Genetics, Ecology and Evolution, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - T L Mannall
- Institute of Plant Sciences, University of Bern, Bern, Switzerland
| | - B S Martin
- Department of Plant Biology, Michigan State University, East Lansing, MI, USA
- Ecology, Evolution, and Behavior Program, Michigan State University, East Lansing, MI, USA
| | - T J Massad
- Department of Scientific Services, Gorongosa National Park, Sofala, Mozambique
| | - A C McCall
- Biology Department, Denison University, Granville, OH, USA
| | - K McGurrin
- Department of Entomology, University of Maryland, College Park, MD, USA
| | - A C Merwin
- Department of Biology and Geology, Baldwin Wallace University, Berea, OH, USA
| | - Z Mijango-Ramos
- Department of Integrative Biology, The University of Texas at Austin, Austin, TX, USA
| | - C H Mills
- Evolution & Ecology Research Centre, University of New South Wales Sydney, Sydney, Australia
| | - A T Moles
- Evolution & Ecology Research Centre, University of New South Wales Sydney, Sydney, Australia
| | - C M Moore
- Department of Biology, Colby College, Waterville, ME, USA
| | - X Moreira
- Misión Biológica de Galicia, Consejo Superior de Investigaciones Científicas, Pontevedra, Galicia, Spain
| | - C R Morrison
- Department of Integrative Biology, The University of Texas at Austin, Austin, TX, USA
| | - M C Moshobane
- South African National Biodiversity Institute, Pretoria National Botanical Garden, Brummeria, Silverton, South Africa
- Centre for Functional Biodiversity, University of KwaZulu-Natal, Scottsville, Pietermaritzburg, South Africa
| | - A Muola
- Division of Biotechnology and Plant Health, Norwegian Institute of Bioeconomy Research, Tromsø, Norway
| | - R Nakadai
- Faculty of Environment and Information Sciences, Yokohama National University, Yokohama, Kanagawa, Japan
| | - K Nakajima
- Insitute of Science and Engineering, Chuo University, Tokyo, Japan
- Institute of Cave Research, Shimohei-guun, Iwate Prefecture, Japan
| | - S Novais
- Red de Interacciones Multitróficas, Instituto de Ecología A.C., Xalapa, Veracruz, Mexico
| | - C O Ogbebor
- Nigerian Institute for Oil Palm Research, Benin City, Edo State, Nigeria
| | - H Ohsaki
- Department of Biological Sciences, Hirosaki University, Hirosaki, Aomori, Japan
| | - V S Pan
- Ecology, Evolution, and Behavior Program, Michigan State University, East Lansing, MI, USA
- Department of Integrative Biology, Michigan State University, East Lansing, MI, USA
| | - N A Pardikes
- Department of Biology, Utah State University, Logan, UT, USA
| | - M Pareja
- Departamento de Biologia Animal, Universidade Estadual de Campinas, Campinas, Brazil
| | - N Parthasarathy
- Department of Ecology and Evironmental Sciences, Pondicherry University, Puducherry, India
| | | | - Q Paynter
- Manaaki Whenua - Landcare Research, Auckland, New Zealand
| | - I S Pearse
- U.S. Geological Survey, Fort Collins Science Center, Fort Collins, CO, USA
| | - R M Penczykowski
- Department of Biology, Washington University in St. Louis, St. Louis, MO, USA
| | - A A Pepi
- Department of Biology, Tufts University, Medford, MA, USA
| | - C C Pereira
- Department of Genetics, Ecology and Evolution, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - S S Phartyal
- School of Ecology & Environment Studies, Nalanda University, Rajgir, India
| | - F I Piper
- Millennium Nucleus of Patagonian Limit of Life and Instituto de Ciencias Biológicas, Universidad de Talca, Talca, Chile
- Institute of Ecology and Biodiversity, Ñuñoa, Santiago
| | - K Poveda
- Department of Entomology, Cornell University, Ithaca, NY, USA
| | - E G Pringle
- Biology Department, University of Nevada, Reno, Reno, NV, USA
| | - J Puy
- School of Natural Sciences, Zoology, Trinity College Dublin, Dublin, Ireland
- Estación Biológica de Doñana, Consejo Superior de Investigaciones Científicas, Sevilla, Spain
| | - T Quijano
- Departamento de Ecología Tropical, Universidad Autónoma de Yucatán, Mérida, Yucatán, México
| | - C Quintero
- INIBIOMA, CONICET - Universidad Nacional del Comahue, San Carlos de Bariloche, Río Negro, Argentina
| | - S Rasmann
- Institute of Biology, University of Neuchatel, Neuchatel, Switzerland
| | - C Rosche
- German Centre for Integrative Biodiversity Research (iDiv), Leipzig, Germany
- Institute of Geobotany and Botanical Garden, Martin Luther University Halle-Wittenberg, Halle, Germany
| | - L Y Rosenheim
- Department of Entomology and Nematology, University of California Davis, Davis, CA, USA
| | - J A Rosenheim
- Department of Entomology and Nematology, University of California Davis, Davis, CA, USA
| | - J B Runyon
- Rocky Mountain Research Station, USDA Forest Service, Bozeman, MT, USA
| | - A Sadeh
- Department of Natural Resources, Newe Ya'ar Research Center, Volcani Institute, Ramat Yishay, Israel
| | - Y Sakata
- Department of Biological Environment, Akita Prefectural University, Shimoshinjyo-Nakano, Akita, Japan
| | - D M Salcido
- Biology Department, University of Nevada, Reno, Reno, NV, USA
| | - C Salgado-Luarte
- Instituto de Investigación Multidisciplinario en Ciencia y Tecnología, Universidad de La Serena, La Serena, Chile
| | - B A Santos
- Departamento de Sistemática e Ecologia Universidade Federal da Paraíba, João Pessoa, Brazil
| | - Y Sapir
- The Botanic Garden, School of Plant Sciences and Food Security, Faculty of Life Science, Tel Aviv University, Tel Aviv, Israel
| | - Y Sasal
- INIBIOMA, CONICET - Universidad Nacional del Comahue, San Carlos de Bariloche, Río Negro, Argentina
| | - Y Sato
- Department of Evolutionary Biology and Environmental Studies, University of Zurich, Zurich, Switzerland
| | - M Sawant
- Department of Ecology, University of Pune, Maharashtra, India
| | - H Schroeder
- Department of Entomology, Cornell University, Ithaca, NY, USA
| | - I Schumann
- Department of Human Genetics, University of Leipzig, Leipzig, Germany
| | - M Segoli
- Mitrani Department of Desert Ecology, Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Midreshet Ben-Gurion, Israel
| | - H Segre
- Department of Natural Resources, Institute of Plant Sciences, Agricultural Research Organization - Volcani Institute, Rishon Le Tzion, Israel
- Robert H. Smith Faculty of Agriculture, Food, and Environment, The Hebrew University of Jerusalem, Rehovot, Israel
- Department of Natural Resources, Newe Ya'ar Research Center, Volcani Institute, Ramat Yishay, Israel
| | - O Shelef
- Department of Natural Resources, Institute of Plant Sciences, Agricultural Research Organization - Volcani Institute, Rishon Le Tzion, Israel
| | - N Shinohara
- Graduate School of Life Sciences, Tohoku University, Sendai, Japan
| | - R P Singh
- McGuire Center for Lepidoptera and Biodiversity, Florida Museum of Natural History, University of Florida, Gainesville, FL, USA
| | - D S Smith
- Department of Biology, California State University San Bernardino, San Bernardino, CA, USA
| | - M Sobral
- Department of Soil Science and Agricultural Chemistry, University of Santiago de Compostela, Santiago de Compostela, A Coruña, Spain
| | - G C Stotz
- Department of Plant and Environmental Sciences, Clemson University, Clemson, SC, USA
| | - A J M Tack
- Department of Ecology, Environment and Plant Sciences, Stockholm University, Stockholm, Sweden
| | - M Tayal
- Department of Plant and Environmental Sciences, Clemson University, Clemson, SC, USA
| | - J F Tooker
- Department of Entomology, The Pennsylvania State University, University Park, PA, USA
| | - D Torrico-Bazoberry
- Laboratorio de Comportamiento Animal y Humano, Centro de Investigación en Complejidad Social, Universidad del Desarrollo, Las Condes, Chile
| | - K Tougeron
- Écologie et Dynamique des Systèmes Anthropisés, Université de Picardie Jules Verne, UMR 7058 CNRS, Amiens, France
- Ecology of Interactions and Global Change, Institut de Recherche en Biosciences, Université de Mons, Mons, Belgium
| | - A M Trowbridge
- Department of Forest and Wildlife Ecology, University of Wisconsin, Madison, WI, USA
| | - S Utsumi
- Field Science Center for Northern Biosphere, Hokkaido University, Sapporo, Hokkaido, Japan
| | - O Uyi
- Department of Animal and Environmental Biology, University of Benin, Benin City, Nigeria
- Department of Entomology, University of Georgia, Tifton, GA, USA
| | - J L Vaca-Uribe
- Programa de ingeniría agroecológica, Corporación Universitaria Minuto de Dios, Bogotá, Colombia
| | - A Valtonen
- Department of Environmental and Biological Sciences, University of Eastern Finland, Joensuu, Finland
| | - L J A van Dijk
- Department of Ecology, Environment and Plant Sciences, Stockholm University, Stockholm, Sweden
- Department of Bioinformatics and Genetics, Swedish Museum of Natural History, Stockholm, Sweden
| | - V Vandvik
- Department of Biological Sciences, University of Bergen, Bergen, Norway
| | - J Villellas
- Department of Life Sciences, University of Alcalá, Madrid, Spain
| | - L P Waller
- Bioprotection Aotearoa, Lincoln University, Lincoln, New Zealand
| | - M G Weber
- Department of Ecology and Evolutionary Biology, University of Michigan, Ann Arbor, MI, USA
| | - A Yamawo
- Department of Biological Sciences, Hirosaki University, Hirosaki, Aomori, Japan
- Center for Ecological Research, Kyoto University, Otsu, Japan
| | - S Yim
- Biology Department, University of Nevada, Reno, Reno, NV, USA
| | - P L Zarnetske
- Ecology, Evolution, and Behavior Program, Michigan State University, East Lansing, MI, USA
- Department of Integrative Biology, Michigan State University, East Lansing, MI, USA
| | - L N Zehr
- Department of Entomology, Michigan State University, East Lansing, MI, USA
| | - Z Zhong
- Institute of Grassland Science, Key Laboratory of Vegetation Ecology, Ministry of Education/Jilin Songnen Grassland Ecosystem National Observation and Research Station, Northeast Normal University, Changchun, Jilin Province, China
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, State Key Laboratory for Biology of Plant Diseases and Insect Pests, Beijing, China
| | - W C Wetzel
- Department of Entomology, Michigan State University, East Lansing, MI, USA
- Plant Resilience Institute, Michigan State University, East Lansing, MI, USA
- Ecology, Evolution, and Behavior Program, Michigan State University, East Lansing, MI, USA
- Department of Integrative Biology, Michigan State University, East Lansing, MI, USA
- W.K. Kellogg Biological Station, Michigan State University, Hickory Corners, MI, USA
- Land Resources and Environmental Sciences, Montana State University, Bozeman, MT, USA
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Sankarapillai J, Krishnan S, Ramamoorthy T, Sudarshan KL, Das P, Chaturvedi M, Mathur P. Epidemiology of cancers among older adults in India: findings from the National Cancer Registry Programme. Public Health 2023; 223:230-239. [PMID: 37683494 DOI: 10.1016/j.puhe.2023.08.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 07/04/2023] [Accepted: 08/01/2023] [Indexed: 09/10/2023]
Abstract
OBJECTIVE This study describes the epidemiology, clinical extent of disease at diagnosis and treatment modalities of cancer among older adults (aged 60 years and older) in India. STUDY DESIGN Secondary data analysis of the National Cancer Registry Programme, which includes 28 Population-Based Cancer Registries (PBCRs) and 96 Hospital-Based Cancer Registries (HBCRs). METHODS PBCR data were used to estimate the incidence in terms of crude rate (CR), age-adjusted incidence rate (AAR), age-specific rate (ASpR) and cumulative risk. Trends in the AAR were calculated with the Annual Percentage Change (APC) using join-point regression. HBCR data were used to describe the clinical extent of the disease at diagnosis and the treatment modalities. RESULTS There is a wide heterogeneity across the country for the incidence of cancer and for the leading cancer sites among older adults. Males had a higher incidence rate compared to females in the majority of the registries. Aizawl had the highest AARs among both genders (males: 1388.8; females: 1033.0). Females had the highest ASpR at 65-69 years (482.8), whereas for males it was above 75 years (710.4). Cervical, stomach and oesophageal cancers were on the decline. The incidence of cancer among older adults was estimated to increase by 13.5% in 2025 as compared to 2020. CONCLUSION The increasing cancer incidence among older adults in India poses a huge burden on the health system. There is a need to increase their participation in clinical trials, advocating comprehensive geriatric assessment and strengthening geriatric oncology within programs addressing older adult's care to deal with the rising cancer burden on the health system borne by them.
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Affiliation(s)
- J Sankarapillai
- Indian Council of Medical Research - National Centre for Disease Informatics and Research, Nirmal Bhawan-ICMR Complex (II Floor), Poojanahalli, Kannamangala Post, Bengaluru, Karnataka, 562110, India(a)
| | - S Krishnan
- Indian Council of Medical Research - National Centre for Disease Informatics and Research, Nirmal Bhawan-ICMR Complex (II Floor), Poojanahalli, Kannamangala Post, Bengaluru, Karnataka, 562110, India(a)
| | - T Ramamoorthy
- Indian Council of Medical Research - National Centre for Disease Informatics and Research, Nirmal Bhawan-ICMR Complex (II Floor), Poojanahalli, Kannamangala Post, Bengaluru, Karnataka, 562110, India(a)
| | - K L Sudarshan
- Indian Council of Medical Research - National Centre for Disease Informatics and Research, Nirmal Bhawan-ICMR Complex (II Floor), Poojanahalli, Kannamangala Post, Bengaluru, Karnataka, 562110, India(a)
| | - P Das
- Indian Council of Medical Research - National Centre for Disease Informatics and Research, Nirmal Bhawan-ICMR Complex (II Floor), Poojanahalli, Kannamangala Post, Bengaluru, Karnataka, 562110, India(a)
| | - M Chaturvedi
- Indian Council of Medical Research - National Centre for Disease Informatics and Research, Nirmal Bhawan-ICMR Complex (II Floor), Poojanahalli, Kannamangala Post, Bengaluru, Karnataka, 562110, India(a)
| | - P Mathur
- Indian Council of Medical Research - National Centre for Disease Informatics and Research, Nirmal Bhawan-ICMR Complex (II Floor), Poojanahalli, Kannamangala Post, Bengaluru, Karnataka, 562110, India(a).
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Girgis R, Shrestha N, Krishnan S, Loyaga-Rendon R. Predictors of Early Mortality after Lung Transplantation for Primary Pulmonary Hypertension: A UNOS Analysis. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.1620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
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Kim C, Krishnan S, Welter JJ, Fan K, Desantis S, Kim J, Krishnan SV, Lindsay-Adler D, Dozor AJ. Changes in Body Mass Index in Children and Adolescents with Asthma during the COVID-19 Pandemic. Pediatr Allergy Immunol Pulmonol 2023. [PMID: 36961432 DOI: 10.1089/ped.2022.0147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 03/25/2023]
Abstract
Background: Increased weight gain in children during the COVID-19 pandemic has been reported. Changes in weight in children with asthma during this period have not been well described. Methods: Retrospective review of children with asthma, 6-18 years of age, seen in 2019 and 2020. Mean monthly rates of change in body mass index (BMI) were compared between years. Demographic and asthma-related factors were examined. Results: Two hundred sixty-seven patients were enrolled. BMI increased by 0.128 ± 0.283 kg/m2/month during the pandemic year as compared with 0.084 ± 0.160 kg/m2/month during the previous year (P = 0.03). Patients with baseline overweight or obesity trended toward higher rates of BMI increase than those starting with normal weight, with the greatest BMI increase occurring in the severely obese. Conclusions: In this single-site study of children with asthma, there was a greater monthly rate of BMI gain during the early pandemic as compared with that observed in the previous year.
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Affiliation(s)
- Christy Kim
- New York Medical College, Valhalla, New York, USA
- Boston Children's Health Physicians, Valhalla, New York, USA
| | - Sankaran Krishnan
- New York Medical College, Valhalla, New York, USA
- Boston Children's Health Physicians, Valhalla, New York, USA
| | | | - Kathleen Fan
- New York Medical College, Valhalla, New York, USA
| | | | - Jennifer Kim
- New York Medical College, Valhalla, New York, USA
| | | | | | - Allen J Dozor
- New York Medical College, Valhalla, New York, USA
- Boston Children's Health Physicians, Valhalla, New York, USA
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Olaleye O, Krishnan G, Beck J, Noor A, Bulsara V, Boase S, Solomon P, Krishnan S, Hodge JC, Foreman A. Validation of the TNM-8 AJCC classification for HPV-positive oropharyngeal cancers in patients undergoing trans-oral robotic surgery. J Robot Surg 2023:10.1007/s11701-023-01524-y. [PMID: 36780056 DOI: 10.1007/s11701-023-01524-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Accepted: 01/03/2023] [Indexed: 02/14/2023]
Abstract
High-risk human papillomaviruses (HPV) are associated with some oropharyngeal squamous cell carcinomas (OPSCC). HPV-OPSCC have better survival outcomes compared to HPV negative tumours. The new TNM-8 AJCC staging (2018) is based on ICON-S data with 98% of patients treated with primary chemoradiation. To validate the TNM-8 AJCC classification in HPV-OPSCC treated primarily with surgery (trans-oral robotic surgery or open). There were 102 patients with HPV-OPSCC treated between July 2009 and December 2014 at the Royal Adelaide Hospital. The median age was 57 years (range: 38-83) and mostly males (84.5%). 27.2% were active smokers and 50.5% reformed smokers. Early T-stage cancer in 72.8%. Primary treatment was surgery & adjuvant therapy (70%) while primary chemoradiation (30%). Survival analyses were performed for the 7th and 8th AJCC systems. The reclassification to the AJCC 8th edition staging system resulted in a change of 54 patients from stage 4 to stages 1 and 2. This was mainly an effect of changes with N2a and N2b nodal disease being reclassified to N1. Survival outcomes were comparable with the ICON-S data. The new TNM-8 classification is, therefore, validated in a cohort treated, predominantly, with primary surgery and adjuvant therapy.
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Affiliation(s)
- O Olaleye
- Department of Otolaryngology, Head and Neck Surgery, Royal Adelaide Hospital, Adelaide, SA, 5000, Australia.
| | - G Krishnan
- Department of Otolaryngology, Head and Neck Surgery, Royal Adelaide Hospital, Adelaide, SA, 5000, Australia
| | - J Beck
- The University of Adelaide, Adelaide, SA, 5005, Australia
| | - A Noor
- Department of Otolaryngology, Head and Neck Surgery, Royal Adelaide Hospital, Adelaide, SA, 5000, Australia
| | - V Bulsara
- Department of Otolaryngology, Head and Neck Surgery, Royal Adelaide Hospital, Adelaide, SA, 5000, Australia
| | - S Boase
- Department of Otolaryngology, Head and Neck Surgery, Royal Adelaide Hospital, Adelaide, SA, 5000, Australia
| | - P Solomon
- The University of Adelaide, Adelaide, SA, 5005, Australia
| | - S Krishnan
- Department of Otolaryngology, Head and Neck Surgery, Royal Adelaide Hospital, Adelaide, SA, 5000, Australia
| | - J C Hodge
- Department of Otolaryngology, Head and Neck Surgery, Royal Adelaide Hospital, Adelaide, SA, 5000, Australia
| | - A Foreman
- Department of Otolaryngology, Head and Neck Surgery, Royal Adelaide Hospital, Adelaide, SA, 5000, Australia
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Cox SR, Padmapriyadarsini C, Mave V, Seth B, Thiruvengadam K, Gaikwad S, Sahasrabudhe TR, Sane M, Tornheim JA, Shrinivasa BM, Lokhande R, Barthwal MS, Shivakumar SVBY, Krishnan S, Santhappan R, Kinikar A, Kakrani AL, Paradkar M, Bollinger RC, Sekar K, Gupte AN, Hanna LE, Gupta A, Golub JE. Characterising cause of death among people treated for drug-susceptible TB in India. Int J Tuberc Lung Dis 2023; 27:78-80. [PMID: 36853129 DOI: 10.5588/ijtld.22.0454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Affiliation(s)
- S R Cox
- Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - C Padmapriyadarsini
- Indian Council of Medical Research-National Institute of Research in Tuberculosis, Chennai, India
| | - V Mave
- Johns Hopkins University School of Medicine, Baltimore, MD, USA, Byramjee Jeejeebhoy Government Medical College-Johns Hopkins University (BJGMC-JHU) Clinical Research Site, Pune, India, Johns Hopkins India, Pune, India
| | - B Seth
- Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - K Thiruvengadam
- Indian Council of Medical Research-National Institute of Research in Tuberculosis, Chennai, India
| | - S Gaikwad
- Byramjee Jeejeebhoy Government Medical College and Sassoon General Hospital, Pune, India
| | - T R Sahasrabudhe
- Dr D. Y. Patil Medical College, Hospital and Research Centre, Dr D. Y. Patil Vidyapeeth, Pimpri-Chinchwad, India
| | - M Sane
- Johns Hopkins India, Pune, India
| | - J A Tornheim
- Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - B M Shrinivasa
- Indian Council of Medical Research-National Institute of Research in Tuberculosis, Chennai, India
| | - R Lokhande
- Byramjee Jeejeebhoy Government Medical College and Sassoon General Hospital, Pune, India
| | - M S Barthwal
- Dr D. Y. Patil Medical College, Hospital and Research Centre, Dr D. Y. Patil Vidyapeeth, Pimpri-Chinchwad, India
| | | | - S Krishnan
- Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - R Santhappan
- Indian Council of Medical Research-National Institute of Research in Tuberculosis, Chennai, India
| | - A Kinikar
- Byramjee Jeejeebhoy Government Medical College and Sassoon General Hospital, Pune, India
| | - A L Kakrani
- Dr D. Y. Patil Medical College, Hospital and Research Centre, Dr D. Y. Patil Vidyapeeth, Pimpri-Chinchwad, India
| | - M Paradkar
- Byramjee Jeejeebhoy Government Medical College-Johns Hopkins University (BJGMC-JHU) Clinical Research Site, Pune, India, Johns Hopkins India, Pune, India
| | - R C Bollinger
- Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - K Sekar
- Indian Council of Medical Research-National Institute of Research in Tuberculosis, Chennai, India
| | - A N Gupte
- Boston University School of Public Health, Boston, MA, USA
| | - L E Hanna
- Indian Council of Medical Research-National Institute of Research in Tuberculosis, Chennai, India
| | - A Gupta
- Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - J E Golub
- Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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Dawson L, Winter K, Knox J, Zhu A, Krishnan S, Guha C, Kachnic L, Gillin M, Hong T, Craig T, Hosni A, Chen E, Noonan A, Koay E, Sinha R, Lock M, Ohri N, Dorth J, Moughan J, Crane C. NRG/RTOG 1112: Randomized Phase III Study of Sorafenib vs. Stereotactic Body Radiation Therapy (SBRT) Followed by Sorafenib in Hepatocellular Carcinoma (HCC) (NCT01730937). Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.09.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Welter JJ, Lennox AT, Krishnan S, Kim C, Krishnan S, Thompson H, McAllister E, Huang K, Nwaedozie K, Dozor AJ. The relationship between weight and pulmonary outcomes in overweight and obese people with cystic fibrosis: A retrospective observational study. Health Sci Rep 2022; 5:e910. [PMID: 36320654 PMCID: PMC9616171 DOI: 10.1002/hsr2.910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 09/09/2022] [Accepted: 10/17/2022] [Indexed: 11/06/2022] Open
Abstract
Background A major focus in cystic fibrosis (CF) care aims to increase weight gain. Rates of overweight and obese people with CF have gradually increased over the past decade. Obesity could be a risk for restriction of lung volumes and airway obstruction as well as increase rates of pulmonary exacerbations in people with CF. Aim To assess the relationship between weight categories and pulmonary outcomes in children and adults with CF. Methods Patients 6 years of age and older were categorized into weight categories based on the Centers for Disease Control and Prevention (CDC) definitions. A retrospective chart review was conducted to obtain lung function testing and other outcomes. Results One hundred five patients with a median age of 20.6 years were included in this analysis. 8.4%, 64%, 18%, and 10% of patients were underweight, normal/healthy weight, overweight, and obese, respectively. Forced expiratory volume in 1 s (FEV1) and forced vital capacity (FVC) (% predicted) did not differ between patients with weights in the normal range versus patients in the overweight/obese categories. Linear regression analysis showed a direct correlation between body mass index (BMI) and FEV1 that continued as BMI entered overweight and obese categories in both pediatric and adult patients. Overweight/obese patients did not have increased rates of pulmonary exacerbations compared to those in the normal/healthy weight category. Conclusion As CF therapies continue to improve, an increasing number of people with CF are exceeding the CDC's normal-weight range. Gaining weight past the normal range does not appear to negatively impact pulmonary health of people with CF. If this trend of increased weight gain continues, it remains to be seen if it will eventually negatively affect lung health.
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Affiliation(s)
- John J. Welter
- Division of Pediatric PulmonologyNew York Medical CollegeValhallaNew YorkUSA
| | - Alison T. Lennox
- Division of Pediatric PulmonologyNew York Medical CollegeValhallaNew YorkUSA
| | - Sankaran Krishnan
- Division of Pediatric PulmonologyNew York Medical CollegeValhallaNew YorkUSA
| | - Christy Kim
- Division of Pediatric PulmonologyNew York Medical CollegeValhallaNew YorkUSA
| | | | - Haley Thompson
- Division of Pediatric PulmonologyNew York Medical CollegeValhallaNew YorkUSA
| | - Emily McAllister
- Division of Pediatric PulmonologyNew York Medical CollegeValhallaNew YorkUSA
| | - Kristen Huang
- Division of Pediatric PulmonologyNew York Medical CollegeValhallaNew YorkUSA
| | - Kasiemobi Nwaedozie
- Division of Pediatric PulmonologyNew York Medical CollegeValhallaNew YorkUSA
| | - Allen J. Dozor
- Division of Pediatric PulmonologyNew York Medical CollegeValhallaNew YorkUSA
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Krishnan S, Niemcyzk G, Parr C, Liu Y, Nguyen T, Avery L, Ducas J, Liu S. IDENTIFYING SOCIAL FACTORS THAT MAY LIMIT EARLY DISCHARGE IN LOW-RISK ST-SEGMENT ELEVATION MYOCARDIAL INFARCTION. Can J Cardiol 2022. [DOI: 10.1016/j.cjca.2022.08.151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Parry T, Artusi S, Guzman-Lepe J, Duermeyer M, Krishnan S. 655 Respiratory cell-type affinity and absolute cystic fibrosis transmembrane conductance regulator expression in the primate airway upon nebulization of KB407. J Cyst Fibros 2022. [DOI: 10.1016/s1569-1993(22)01345-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Westerhout J, Krishnan S, Schillemans T, Åkesson A, Kramer N, Louisse J, Legler J, Princen H, Stierum R. SOC-V-09 Development of quantitative adverse outcome pathways to address the effects of PFAS on cholesterol metabolism. Benchmarking with human epidemiological data and comparison with threshold values. Toxicol Lett 2022. [DOI: 10.1016/j.toxlet.2022.07.198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Abstract
Over a couple of decades perovskite solar cells have become a highly promising photovoltaic technology. Choosing a dopant-free Hole-Transporting Material (HTM) that offers protection to a perovskite layer from oxidation is one of the viable strategies while addressing the stability of perovskite solar cell. In this line of interest, tetrathiafulvale (TTF) derivatives have shown promise in the past. However, studies that focus on small-molecule TTF derivatives as potential HTM options are scarce. The present study is an attempt to explore the applicability of a few TTF derivatives as HTM in a perovskite solar cell. Here four TTF derivatives, namely, TTF-1 (experimentally reported in a previous study), TTF-2, DBTTF1, and TMTSF1, were studied through electronic structure calculations. The properties concerning HTM, such as impact of adsorption on molecular structure, absorption spectra, distribution of frontier molecular orbitals, interaction energy between TTF derivative and MAPbI3 surface, and charge transfer at an interface, were analyzed. Results show that TTF-2 has the expected energy-level alignment, transparency in the visible range of solar spectrum, and good charge-injection ability at the interface with a perovskite layer. Hence, TTF-2 could be a potential hole-transporting material for a perovskite solar cell, and it can perform better than TTF-1.
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Affiliation(s)
- S Krishnan
- Department of Physics, Bharathiar University, Coimbatore 641 046, India
| | - K Senthilkumar
- Department of Physics, Bharathiar University, Coimbatore 641 046, India
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Marinkovich M, Gonzalez M, Guide S, Bagci I, Chitra S, Agostini B, Chen H, Parry T, Krishnan S. 465 GEM-3: phase 3 safety and immunogenicity results of beremagene geperpavec (B-VEC), an investigational, topical gene therapy for dystrophic epidermolysis bullosa (DEB). J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Mayne GC, Woods CM, Dharmawardana N, Wang T, Krishnan S, Hodge JC, Foreman A, Boase S, Carney AS, Sigston EAW, Watson DI, Ooi EH, Hussey DJ. Correction: Cross validated serum small extracellular vesicle microRNAs for the detection of oropharyngeal squamous cell carcinoma. J Transl Med 2022; 20:282. [PMID: 35733203 PMCID: PMC9215024 DOI: 10.1186/s12967-022-03434-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Affiliation(s)
- G C Mayne
- Flinders Health and Medical Research Institute, Flinders University and Flinders Medical Centre, Bedford Park, SA, 5042, Australia
| | - C M Woods
- Flinders Health and Medical Research Institute, Flinders University and Flinders Medical Centre, Bedford Park, SA, 5042, Australia
| | - N Dharmawardana
- Flinders Health and Medical Research Institute, Flinders University and Flinders Medical Centre, Bedford Park, SA, 5042, Australia
| | - T Wang
- Flinders Health and Medical Research Institute, Flinders University, Bedford Park, SA, 5042, Australia
| | - S Krishnan
- Royal Adelaide Hospital and University of Adelaide, Adelaide, SA, 5000, Australia
| | - J C Hodge
- Royal Adelaide Hospital and University of Adelaide, Adelaide, SA, 5000, Australia
| | - A Foreman
- Royal Adelaide Hospital and University of Adelaide, Adelaide, SA, 5000, Australia
| | - S Boase
- Royal Adelaide Hospital, University of Adelaide, Adelaide, SA, 5000, Australia.,Flinders University, Adelaide, SA, 5042, Australia
| | - A S Carney
- Flinders Health and Medical Research Institute, Flinders University, Bedford Park, SA, 5042, Australia
| | - E A W Sigston
- Department of Otorhinolaryngology Head & Neck, Monash Health and Department of Surgery, Monash University, Clayton, VIC, 3168, Australia
| | - D I Watson
- Flinders Health and Medical Research Institute, Flinders University and Flinders Medical Centre, Bedford Park, SA, 5042, Australia
| | - E H Ooi
- Flinders Health and Medical Research Institute, Flinders University and Flinders Medical Centre, Bedford Park, SA, 5042, Australia
| | - D J Hussey
- Flinders Health and Medical Research Institute, Flinders University and Flinders Medical Centre, Bedford Park, SA, 5042, Australia.
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Rai S, Srivastava S, Krishnan S, Murlimanju B, Hegde A, Jolly A. Work-Related Musculoskeletal Disorders among Sonologists during the Pre-COVID-19 and Present COVID-19 Era: a Survey and Review of Best Practices. Muscles Ligaments Tendons J 2022. [DOI: 10.32098/mltj.02.2022.17] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Javed R, Roychowdhury M, Bhave S, Kumar J, Krishnan S, Nag A, Mishra D, Bhattacharya S, KS R, Ghara N, Nair R, Chandy M. Hematopoietic Stem/Progenitor Cells and Engineering: HALF-TRUTH: GRAFT CRYOPRESERVATION DOES NOT IMPACT ENGRAFTMENT AFTER ALLOGENEIC HEMATOPOIETIC CELL TRANSPLANT (ALLO-HCT)-A SINGLE CENTER EXPERIENCE FROM INDIA. Cytotherapy 2022. [DOI: 10.1016/s1465-3249(22)00283-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Tsiouris A, Elgharably H, Ahmad U, Budev M, Lane C, Gadre S, Turowski J, Akindipe O, Koval C, Krishnan S, Unai S, Anandamurthy B, McCurry K, Yun J. Lung Transplant for Patients with COVID-19 Bridged with VV ECMO: Initial Experience. J Heart Lung Transplant 2022. [PMCID: PMC8988694 DOI: 10.1016/j.healun.2022.01.1213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Purpose During the COVID-19 pandemic, veno-venous Extracorporeal Membrane Oxygenation (VV ECMO) has been used extensively for respiratory failure refractory to conventional mechanical ventilation (MV) and rescue maneuvers. However, the worldwide experience with COVID-19 patients undergoing lung transplant (LTx) with pre-LTx VV ECMO support is limited. Therefore, we sought to report our institution's early experience with COVID-19 patients who underwent LTx after VV ECMO. Methods We retrospectively identified 5 COVID-19 patients who underwent LTx after VV ECMO support. Patients were required to have a negative nasopharyngeal swab and a negative bronchoalveolar lavage for COVID-19 prior to LTx listing. We analyzed preoperative and operative characteristics, details of VV ECMO support and early post-transplant outcomes. Results The mean age of our cohort was 50 years (range 39-57 years) and all patients were male. Mean recipient BMI was 30 (range 22-37). Mean duration of VV ECMO pre-Ltx was 60 days (range 44-72 days). At the time of the LTx operation, 60% (3/5) of patients were on VV ECMO, 20% (1/5) were on mechanical ventilation (MV), and 20% (1/5) were on supplemental oxygen only. Preoperatively, 80% (4/5) had acute kidney injury and 20% (2/5) were on dialysis. LTx was performed via clamshell approach with intraoperative venoaterial ECMO support in all cases. For 60% (3/5) patients, VV ECMO support was continued after LTx and discontinued on postoperative days 0, 1 and 6, respectively. All-cause mortality was 40% (2/5), related to sepsis and multi-organ failure, and both deaths occurred an average of 115 days post-LTx. Mean length of stay for surviving patients was 59 days (range 22-117). In the first 3 months postop-LTx, grade A2 acute cellular rejection was noted in 2 patients, A1 in 2 patients, and antibody-mediated rejection in 1 patient. Conclusion Our early experience with LTx for COVID-19 patients supported with VV ECMO support is notable for 1) prolonged VV-ECMO duration and significant morbidity pre-LTx, and 2) early mortalities related to sepsis and multiple organ failure. These data highlight a uniquely complex patient population that carries high risk of multi-organ failure and other comorbidities dictating careful selection for transplant.
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Krishnan S, Senthilkumar K. Modified fullerenes as acceptors in bulk heterojunction organic solar cells - a theoretical study. Phys Chem Chem Phys 2021; 23:27468-27476. [PMID: 34870653 DOI: 10.1039/d1cp04402h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In the present study, electronic structure calculations were used to provide strategies for designing poly(3-hexylthiophene) (P3HT)-fullerene-derivative-based donor-acceptor materials for use in high-efficiency bulk heterojunction organic solar cells (BHJ OSCs). The work systematically analyses the impact of electron-donating and -withdrawing substituents on the opto-electronic properties of the fullerene structures. Parameters relating to the absorption spectra, orbital distributions, and energy ordering of the frontier molecular orbitals (FMO), the interactions between P3HT and the fullerene derivatives, and charge transfer across the interface were investigated. We found that substitution with the electron-withdrawing group NO2 enhances the electronic coupling between the fullerene and P3HT; however, it reduces the open-circuit voltage (VOC) of the OSC through lowering the LUMO energy level. Furthermore, the results show that substitution with an electron-withdrawing group (NO2) and electron-donating group (OCH3) can improve the power conversion efficiency (PCE) of the OSC, since this slightly improves the photon absorption abilities and charge transfer coupling at the interface without overly compromising VOC relative to PC61BM. Our study shows that alkyl chain modification in the PC61BM acceptor is a promising strategy for improving the performances of OSCs.
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Affiliation(s)
- S Krishnan
- Department of Physics, Bharathiar University, Coimbatore - 641 046, India.
| | - K Senthilkumar
- Department of Physics, Bharathiar University, Coimbatore - 641 046, India.
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Palma D, Prisman E, Berthelet E, Tran E, Hamilton S, Wu J, Eskander A, Higgins K, Karam I, Poon I, Husain Z, Enepekides D, Hier M, Sultanem K, Richardson K, Mlynarek A, Johnson-Obaseki S, Eapen L, Odell M, Bayley A, Dowthwaite S, Jackson J, Dzienis M, O'Neil J, Chandarana S, Banerjee R, Hart R, Chung J, Tenenholz T, Krishnan S, Le H, Yoo J, Mendez A, Winquist E, Kuruvilla S, Stewart P, Warner A, Mitchell S, Chen J, Parker C, Wehrli B, Kwan K, Theurer J, Sathya J, Hammond J, Read N, Venkatesan V, MacNeil D, Fung K, Nichols A. A Randomized Trial of Radiotherapy vs. Trans-Oral Surgery for Treatment De-Escalation in HPV-Associated Oropharyngeal Squamous Cell Carcinoma (ORATOR2). Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.09.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Ebner D, Malouff T, Lehrer E, Trifiletti D, Krishnan S. Meta-Analysis of Definitive Photon and Particle Irradiation for Locally Advanced Pancreatic Cancer. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.397] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Anitha S, Krishnan S, Senthilkumar K, Sasirekha V. A comparative investigation on the scavenging of 2,2-diphenyl-1-picrylhydrazyl radical by the natural antioxidants (+) catechin and (-) epicatechin. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130805] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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Bhattacharyya DN, Iyer RS, Krishnan S, Chikale SV. Alkanolamide Surfactants from Bodied Oils / Alkanolamidtenside aus Polymerölen. TENSIDE SURFACT DET 2021. [DOI: 10.1515/tsd-1990-270511] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Pavithrakumar M, Krishnan S, Senthilkumar K. Charge Transport and Optical Absorption Properties of Dibenzocoronene Tetracarboxdiimide Based Liquid Crystalline Molecules: A Theoretical Study. J Phys Chem A 2021; 125:3852-3862. [PMID: 33938734 DOI: 10.1021/acs.jpca.1c00790] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Structure, optical absorption, and charge transport properties of dibenzocoronene tetracarboxdiimide (DCDI) based molecules were studied using electronic structure calculations. Based on the optimized neutral, cationic, and anionic geometries the ionized state properties, such as ionization potential, electron affinity, hole extraction potential, electron extraction potentials, and reorganization energy, were calculated. On the basis of the ground state geometry of the studied molecules, the absorption spectra were calculated using the time-dependent density functional theory (TDDFT) method at the PBE0/def-TZVP level of theory. It has been observed that the substitution of different functional groups significantly alters the absorption spectra of DCDI. The methoxy- (OCH3-) substituted DCDI molecule has a maximum absorption wavelength of 529 nm. The charge transport parameters, such as the charge transfer integral, spatial overlap integral, and the site energy, are calculated directly from the Kohn-Sham matrix elements. The reorganization energy for the presence of excess positive and negative charges and the charge transfer rate calculated from Marcus' theory were used to find the mobility of charge carriers. The computed results show that the mobility of charge carriers is strongly influenced by the functional groups present on the DCDI molecule. The effect of intermolecular structural fluctuations on charge transport properties was studied through molecular dynamics and Monte Carlo simulations based on the polaron hopping mechanism. The calculated charge carrier mobility shows that the cyano- (CN-) substituted DCDI molecules are having n-type semiconducting property while, methoxy- (OCH3-) and thiol- (SH-) substituted DCDI molecules exhibit ambipolar semiconducting properties.
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Affiliation(s)
- M Pavithrakumar
- Department of Physics, Bharathiar University, Coimbatore-641 046, India
| | - S Krishnan
- Department of Physics, Bharathiar University, Coimbatore-641 046, India
| | - K Senthilkumar
- Department of Physics, Bharathiar University, Coimbatore-641 046, India
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Krishnan S, Angeloff N, Reitze N, Sarma N, Parry T, Nestor M. 169 First-in-human safety and mechanism of action (MOA) analyses of repeatedly dosed in vivo gene delivery for directed human type III collagen (COL3) expression in aesthetics. J Invest Dermatol 2021. [DOI: 10.1016/j.jid.2021.02.189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Marinkovich M, Forte S, Oliver S, Dolorito J, Sridhar K, Liu H, Reitze N, Sarma N, Krishnan S. 155 Assessment of safety in repeat dosing of an in vivo topical gene therapy for the treatment of recessive dystrophic epidermolysis bullosa (RDEB) in a phase I/II trial. J Invest Dermatol 2021. [DOI: 10.1016/j.jid.2021.02.175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Krishnan S, Sathiyamoorthy G, Hadley R, Lawson C, McDermott J, Mietz S, Leacche M, Murphy E, Girgis R. Management of Positive Prospective Cross Matches in Lung Transplant Recipients: Outcomes from a Single-Center Experience. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.1021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Krishnan S, O’Boyle C, Smith CJ, Hulme S, Allan SM, Grainger JR, Lawrence CB. A hyperacute immune map of ischaemic stroke patients reveals alterations to circulating innate and adaptive cells. Clin Exp Immunol 2021; 203:458-471. [PMID: 33205448 PMCID: PMC7874838 DOI: 10.1111/cei.13551] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 11/06/2020] [Accepted: 11/09/2020] [Indexed: 12/24/2022] Open
Abstract
Systemic immune changes following ischaemic stroke are associated with increased susceptibility to infection and poor patient outcome due to their role in exacerbating the ischaemic injury and long-term disability. Alterations to the abundance or function of almost all components of the immune system post-stroke have been identified, including lymphocytes, monocytes and granulocytes. However, subsequent infections have often confounded the identification of stroke-specific effects. Global understanding of very early changes to systemic immunity is critical to identify immune targets to improve clinical outcome. To this end, we performed a small, prospective, observational study in stroke patients with immunophenotyping at a hyperacute time point (< 3 h) to explore early changes to circulating immune cells. We report, for the first time, decreased frequencies of type 1 conventional dendritic cells (cDC1), haematopoietic stem and progenitor cells (HSPCs), unswitched memory B cells and terminally differentiated effector memory T cells re-expressing CD45RA (TEMRA). We also observed concomitant alterations to human leucocyte antigen D-related (HLA-DR), CD64 and CD14 expression in distinct myeloid subsets and a rapid activation of CD4+ T cells based on CD69 expression. The CD69+ CD4+ T cell phenotype inversely correlated with stroke severity and was associated with naive and central memory T (TCM) cells. Our findings highlight early changes in both the innate and adaptive immune compartments for further investigation as they could have implications the development of post-stroke infection and poorer patient outcomes.
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Affiliation(s)
- S. Krishnan
- Geoffrey Jefferson Brain Research CentreFaculty of Biology, Medicine and HealthManchester Academic Health Science CentreUniversity of ManchesterManchesterUK
- Lydia Becker Institute of Immunology and InflammationFaculty of Biology, Medicine and HealthManchester Academic Health Science CentreUniversity of ManchesterManchesterUK
- Division of Infection, Immunity and Respiratory MedicineSchool of Biological SciencesFaculty of Biology, Medicine and HealthUniversity of ManchesterManchesterUK
| | - C. O’Boyle
- Lydia Becker Institute of Immunology and InflammationFaculty of Biology, Medicine and HealthManchester Academic Health Science CentreUniversity of ManchesterManchesterUK
- Division of Neuroscience and Experimental PsychologySchool of Biological SciencesFaculty of Biology, Medicine and HealthUniversity of ManchesterManchesterUK
| | - C. J. Smith
- Geoffrey Jefferson Brain Research CentreFaculty of Biology, Medicine and HealthManchester Academic Health Science CentreUniversity of ManchesterManchesterUK
- Lydia Becker Institute of Immunology and InflammationFaculty of Biology, Medicine and HealthManchester Academic Health Science CentreUniversity of ManchesterManchesterUK
- Division of Cardiovascular SciencesUniversity of ManchesterManchester Academic Health Science CentreSalford Royal NHS Foundation TrustSalfordUK
- Manchester Centre for Clinical NeurosciencesSalford Royal NHS Foundation TrustSalfordUK
| | - S. Hulme
- Division of Cardiovascular SciencesUniversity of ManchesterManchester Academic Health Science CentreSalford Royal NHS Foundation TrustSalfordUK
- Manchester Centre for Clinical NeurosciencesSalford Royal NHS Foundation TrustSalfordUK
| | - S. M. Allan
- Geoffrey Jefferson Brain Research CentreFaculty of Biology, Medicine and HealthManchester Academic Health Science CentreUniversity of ManchesterManchesterUK
- Lydia Becker Institute of Immunology and InflammationFaculty of Biology, Medicine and HealthManchester Academic Health Science CentreUniversity of ManchesterManchesterUK
- Division of Neuroscience and Experimental PsychologySchool of Biological SciencesFaculty of Biology, Medicine and HealthUniversity of ManchesterManchesterUK
| | - J. R. Grainger
- Lydia Becker Institute of Immunology and InflammationFaculty of Biology, Medicine and HealthManchester Academic Health Science CentreUniversity of ManchesterManchesterUK
- Division of Infection, Immunity and Respiratory MedicineSchool of Biological SciencesFaculty of Biology, Medicine and HealthUniversity of ManchesterManchesterUK
| | - C. B. Lawrence
- Geoffrey Jefferson Brain Research CentreFaculty of Biology, Medicine and HealthManchester Academic Health Science CentreUniversity of ManchesterManchesterUK
- Lydia Becker Institute of Immunology and InflammationFaculty of Biology, Medicine and HealthManchester Academic Health Science CentreUniversity of ManchesterManchesterUK
- Division of Neuroscience and Experimental PsychologySchool of Biological SciencesFaculty of Biology, Medicine and HealthUniversity of ManchesterManchesterUK
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Bunik VI, Aleshin VA, Zhou X, Krishnan S, Karlsson A. Regulation of Thiamine (Vitamin B1)-Dependent Metabolism in Mammals by p53. Biochemistry (Mosc) 2021; 85:801-807. [PMID: 33040724 DOI: 10.1134/s0006297920070081] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Transcriptional factor p53 is a master regulator of energy metabolism. Energy metabolism strongly depends on thiamine (vitamin B1) and/or its natural derivatives. Thiamine diphosphate (ThDP), which is a major thiamine derivative, affects p53 binding to DNA. In order to elucidate the mechanism of regulation of thiamine-dependent metabolism by p53, we assessed putative p53-binding sites near transcription starting points in genes coding for transporters and enzymes, whose function is associated with thiamine and/or its derivatives. The predictions were validated by studying cell metabolic response to the p53 inducer cisplatin. Expression of p53 and its known target, p21, has been evaluated in cisplatin-treated and control human lung adenocarcinoma A549 cells that possess functional p53 pathway. We also investigated the activity of enzymes involved in the thiamine-dependent energy metabolism. Along with upregulating the expression of p53 and p21, cisplatin affected the activities of metabolic enzymes, whose genes were predicted as carrying the p53-binding sites. The activity of glutamate dehydrogenase GDH2 isoenzyme strongly decreased, while the activities of NADP+-dependent isocitrate dehydrogenase (IDH) and malic enzymes, as well as the activity of 2-oxoglutarate dehydrogenase complex at its endogenous ThDP level, were elevated. Simultaneously, the activities of NAD+-dependent IDH, mitochondrial aspartate aminotransferase, and two malate dehydrogenase isoenzymes, whose genes were not predicted to have the p53-binding sequences near the transcription starting points, were upregulated by cisplatin. The p53-dependent regulation of the assayed metabolic enzymes correlated with induction of p21 by p53 rather than induction of p53 itself.
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Affiliation(s)
- V I Bunik
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, 119991, Russia. .,Faculty of Bioengineering and Bioinformatics, Lomonosov Moscow State University, Moscow, 119991, Russia.,Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University), Moscow, 119991, Russia
| | - V A Aleshin
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, 119991, Russia.,Faculty of Bioengineering and Bioinformatics, Lomonosov Moscow State University, Moscow, 119991, Russia
| | - X Zhou
- Division of Clinical Microbiology, Department of Laboratory Medicine, Karolinska Institute, Karolinska University Hospital, Stockholm, 141 86, Sweden
| | - S Krishnan
- Division of Clinical Microbiology, Department of Laboratory Medicine, Karolinska Institute, Karolinska University Hospital, Stockholm, 141 86, Sweden
| | - A Karlsson
- Division of Clinical Microbiology, Department of Laboratory Medicine, Karolinska Institute, Karolinska University Hospital, Stockholm, 141 86, Sweden
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Krishnan S, Senthilkumar K. The influence of the shape and configuration of sensitizer molecules on the efficiency of DSSCs: a theoretical insight. RSC Adv 2021; 11:5556-5567. [PMID: 35423080 PMCID: PMC8694715 DOI: 10.1039/d0ra10613e] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Accepted: 01/04/2021] [Indexed: 01/10/2023] Open
Abstract
The sensitizer is an active component of dye sensitized solar cell (DSSC) technology, which is highly influential for the performance of DSSCs. The present study attempts to investigate the relationship between the shape of the sensitizer molecule and efficiency of DSSCs. Specifically, 17 different structures were investigated, and classified into four categories based on the shape of the dye molecule, namely L-shaped (linear), V-shaped, X-shaped and Y-shaped, and into two different categories based on the donor moiety. The five of studied structures contained a triphenylamine (TPA) donor moiety, and twelve structures contained carbazole (CAR) donor moiety. Parameters related to the performance of DSSCs such as absorption spectra, intramolecular charge transfer indices, frontier molecular orbitals, light harvesting efficiency, excited-state lifetime, exciton binding energy, electrostatic potential, charge transfer and electron injection ability were studied using results obtained from electronic structure calculations. The analysis of these various parameters showed that the linear-shaped and V-shaped sensitizers possess better photon absorption ability, and the V-shaped structure is best suited shape for applications in high performance DSSCs. Numerous studies have reported that the shape of a sensitizer matters for DSSC performance, while the present study investigates why and how it matters.![]()
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Affiliation(s)
- S Krishnan
- Department of Physics, Bharathiar University Coimbatore 641046 India +91-422-2422387
| | - K Senthilkumar
- Department of Physics, Bharathiar University Coimbatore 641046 India +91-422-2422387
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Sangam MR, Das MC, Krishnan S. Students Perception of their Educational Environment in a Medical College in India- A Survey using DREEM Questionnaire. J Clin Diagn Res 2021. [DOI: 10.7860/jcdr/2021/50157.15686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Introduction: Educational plays an important role in the achievement of student’s academic success. Understanding the perception of students towards their educational environment helps to identify the lacunae in the curriculum and make the changes accordingly. Aim: To assess the perceptions of the students towards medical education using Dundee Ready Educational Environment Measure (DREEM) questionnaire as a tool. Materials and Methods: This was a cross-sectional study done at NRI Medical College, Guntur, Andhra Pradesh, India, from September 2020 to December 2020. A total of 414 students participated in the study. The DREEM questionnaire was used to collect the data. The questionnaire consists of five components with 50 statements assessed on five-point Likert scale (0-4). Data were expressed as mean and standard deviation, frequency, and percentages. Independent t-test and one-way Analysis of Variance (ANOVA) were used for comparing the groups. Results: Out of 600 students, 414 filled in the forms and submitted them (response rate was 69%). 266 (64.2%) were female and 148 (35.8%) were males. Age of the students ranged from 17 to 25 years with mean age 22.64±2.62 years. The mean DREEM score of study population was 130±6.7/200 which indicated a more positive than negative perception of learning. Subscale scores for student’s perception of learning, perceptions of teachers, academic self-perceptions, perceptions of atmosphere and social self-perceptions were 30.9±2.4, 28.9±1.5, 22.4±3.1, 30.8±2.3 and 16.9±1.7 respectively. Conclusion: There was a positive perception of students towards their educational environment. Strong areas were student’s confidence, teacher’s knowledge, and curricular relevance. Weak areas were identified as the inability to provide constructive criticism by teachers, the teachers were authoritarian and necessary steps can be taken for the improvement.
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Krich D, Dozor AJ, Krishnan S. Airway closing index in school-age children during exercise bronchoprovocation. J Asthma 2020; 59:126-131. [PMID: 33187460 DOI: 10.1080/02770903.2020.1850765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
OBJECTIVE Airway Closing Index (ACI), the ratio of % change in FVC to % change in FEV1 with bronchoprovocation, may represent changes in airflow due to airway closure, as opposed to airway narrowing. The objective of this study was to evaluate ACI during exercise bronchoprovocation (EB) in children. METHODS Children, 6 to 18 years of age, who underwent EB using a stationary bicycle ergometer over a 6-year period were reviewed. Pulmonary function, including ACI, in patients with a positive exercise challenge, defined as ≥10% decrease in FEV1 following exercise, were compared to patients with a negative challenge. RESULTS A total of 1030 children with a median age of 13 (IQR 11-15) underwent EB, of which 376 (37%) had a positive exercise challenge. There was wide variability in ACI, with a median of 0.75 (0.28-1.21). Median ACI in those with a positive test was 0.68 (IQR 0.41-0.93) compared to 0.84 (IQR 0.09-1.06) for those with a negative test, p = 0.017. Median ACI was higher in older children (p < 0.001) and females (p < 0.0001). Median percent change in FEV1 following bronchodilator for children in the highest quintile for ACI was 4.5 (IQR 1.3-8.1) compared to 5.5 (IQR 2-9.2) for children in the lowest quintile, p = 0.04. CONCLUSIONS There is wide variability in the ACI in children undergoing EB. ACI was lower in children with a positive challenge, the significance is unknown. Children with higher ACI may have increased airway closure with bronchoprovocation, and less response to bronchodilators.
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Affiliation(s)
- Daniel Krich
- New York Medical College, Valhalla, NY, USA.,Maria Fareri Children's Hospital at Westchester Medical Center, Valhalla, NY, USA
| | - Allen J Dozor
- New York Medical College, Valhalla, NY, USA.,Maria Fareri Children's Hospital at Westchester Medical Center, Valhalla, NY, USA
| | - Sankaran Krishnan
- New York Medical College, Valhalla, NY, USA.,Maria Fareri Children's Hospital at Westchester Medical Center, Valhalla, NY, USA
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Rhein L, White H, Simoneau T, Traeger N, Lahiri T, Kremer T, Sheils C, Meyer K, Rosenkrantz T, Krishnan S, Hartman T, Feldman HA, Abu Jawdeh EG. Transmitted Home Oximetry and Duration of Home Oxygen in Premature Infants. Pediatrics 2020; 146:peds.2020-0079. [PMID: 32665372 DOI: 10.1542/peds.2020-0079] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/07/2020] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVES To determine if a home oxygen therapy (HOT) management strategy that includes analysis of recorded home oximetry (RHO) data, compared with standard monthly clinic visit assessments, reduces duration of HOT without harm in premature infants. METHODS The RHO trial was an unmasked randomized clinical trial conducted in 9 US medical centers from November 2013 to December 2017, with follow-up to February 2019. Preterm infants with birth gestation ≤37 + 0/7 weeks, discharged on HOT, and attending their first pulmonary visit were enrolled. The intervention was an analysis of transmitted RHO between clinic visits (n = 97); the standard-care group received monthly clinic visits with in-clinic weaning attempts (n = 99). The primary outcomes were the duration of HOT and parent-reported quality of life. There were 2 prespecified secondary safety outcomes: change in weight and adverse events within 6 months of HOT discontinuation. RESULTS Among 196 randomly assigned infants (mean birth gestational age: 26.9 weeks; SD: 2.6 weeks; 37.8% female), 166 (84.7%) completed the trial. In the RHO group, the mean time to discontinue HOT was 78.1 days (SE: 6.4), compared with 100.1 days (SE: 8.0) in the standard-care group (P = .03). The quality-of-life scores improved from baseline to 3 months after discontinuation of HOT in both groups (P = .002), but the degree of improvement did not differ significantly between groups (P = .75). CONCLUSIONS RHO was effective in reducing the duration of HOT in premature infants. Parent quality of life improved after discontinuation. RHO allows physicians to determine which infants can be weaned and which need prolonged oxygen therapy between monthly visits.
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Affiliation(s)
- Lawrence Rhein
- Divisions of Neonatology and .,Pediatric Pulmonology, University of Massachusetts Memorial Medical Center, Worcester, Massachusetts
| | | | - Tregony Simoneau
- Division of Pediatric Pulmonology, School of Medicine, University of Connecticut and Connecticut Children's Medical Center, Hartford, Connecticut
| | - Nadav Traeger
- Division of Pediatric Pulmonology, Maria Fareri Children's Hospital, Valhalla, New York
| | - Thomas Lahiri
- Division of Pediatric Pulmonology, Larner College of Medicine, The University of Vermont, Burlington, Vermont
| | - Ted Kremer
- Pediatric Pulmonology, University of Massachusetts Memorial Medical Center, Worcester, Massachusetts
| | - Catherine Sheils
- Department of Medicine, Harvard Medical School, Harvard University and Boston Children's Hospital, Boston, Massachusetts
| | - Kathleen Meyer
- Division of Neonatology, Baystate Health Center, Springfield, Massachusetts
| | - Ted Rosenkrantz
- Division of Neonatology, Department of Pediatrics, University of Connecticut Health, Farmington, Connecticut
| | - Sankaran Krishnan
- Division of Pediatric Pulmonology, Maria Fareri Children's Hospital, Valhalla, New York
| | - Tyler Hartman
- Division of Neonatology, Geisel School of Medicine, Dartmouth College, Manchester, New Hampshire
| | - Henry A Feldman
- Institutional Centers for Clinical and Translational Research, Boston Children's Hospital, Boston, Massachusetts; and
| | - Elie G Abu Jawdeh
- Division of Neonatology, Department of Pediatrics, College of Medicine, University of Kentucky, Lexington, Kentucky
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Mayne GC, Woods CM, Dharmawardana N, Wang T, Krishnan S, Hodge JC, Foreman A, Boase S, Carney AS, Sigston EAW, Watson DI, Ooi EH, Hussey DJ. Cross validated serum small extracellular vesicle microRNAs for the detection of oropharyngeal squamous cell carcinoma. J Transl Med 2020; 18:280. [PMID: 32650803 PMCID: PMC7350687 DOI: 10.1186/s12967-020-02446-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Accepted: 07/02/2020] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Oropharyngeal squamous cell carcinoma (OPSCC) is often diagnosed at an advanced stage because the disease often causes minimal symptoms other than metastasis to neck lymph nodes. Better tools are required to assist with the early detection of OPSCC. MicroRNAs (miRNAs, miRs) are potential biomarkers for early head and neck squamous cell cancer diagnosis, prognosis, recurrence, and presence of metastatic disease. However, there is no widespread agreement on a panel of miRNAs with clinically meaningful utility for head and neck squamous cell cancers. This could be due to variations in the collection, storage, pre-processing, and isolation of RNA, but several reports have indicated that the selection and reproducibility of biomarkers has been widely affected by the methods used for data analysis. The primary analysis issues appear to be model overfitting and the incorrect application of statistical techniques. The purpose of this study was to develop a robust statistical approach to identify a miRNA signature that can distinguish controls and patients with inflammatory disease from patients with human papilloma virus positive (HPV +) OPSCC. METHODS Small extracellular vesicles were harvested from the serum of 20 control patients, 20 patients with gastroesophageal reflux disease (GORD), and 40 patients with locally advanced HPV + OPSCC. MicroRNAs were purified, and expression profiled on OpenArray™. A novel cross validation method, using lasso regression, was developed to stabilise selection of miRNAs for inclusion in a prediction model. The method, named StaVarSel (for Stable Variable Selection), was used to derive a diagnostic biomarker signature. RESULTS A standard cross validation approach was unable to produce a biomarker signature with good cross validated predictive capacity. In contrast, StaVarSel produced a regression model containing 11 miRNA ratios with potential clinical utility. Sample permutations indicated that the estimated cross validated prediction accuracy of the 11-miR-ratio model was not due to chance alone. CONCLUSIONS We developed a novel method, StaVarSel, that was able to identify a panel of miRNAs, present in small extracellular vesicles derived from blood serum, that robustly cross validated as a biomarker for the detection of HPV + OPSCC. This approach could be used to derive diagnostic biomarkers of other head and neck cancers.
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Affiliation(s)
- G C Mayne
- Flinders Health and Medical Research Institute, Flinders University and Flinders Medical Centre, Bedford Park, South Australia, 5042, Australia
| | - C M Woods
- Flinders Health and Medical Research Institute, Flinders University and Flinders Medical Centre, Bedford Park, South Australia, 5042, Australia
| | - N Dharmawardana
- Flinders Health and Medical Research Institute, Flinders University and Flinders Medical Centre, Bedford Park, South Australia, 5042, Australia
| | - T Wang
- Flinders Health and Medical Research Institute, Flinders University , Bedford Park, South Australia, 5042, Australia
| | - S Krishnan
- Royal Adelaide Hospital and University of Adelaide, Adelaide, South Australia, 5000, Australia
| | - J C Hodge
- Royal Adelaide Hospital and University of Adelaide, Adelaide, South Australia, 5000, Australia
| | - A Foreman
- Royal Adelaide Hospital and University of Adelaide, Adelaide, South Australia, 5000, Australia
| | - S Boase
- Royal Adelaide Hospital, University of Adelaide, Adelaide, South Australia, 5000, Australia
- Flinders University, South Australia, South Australia, 5042, Australia
| | - A S Carney
- Flinders Health and Medical Research Institute, Flinders University , Bedford Park, South Australia, 5042, Australia
| | - E A W Sigston
- Department of Otorhinolaryngology Head & Neck, Monash Health and Department of Surgery, Monash University, Clayton, Victoria, 3168, Australia
| | - D I Watson
- Flinders Health and Medical Research Institute, Flinders University and Flinders Medical Centre, Bedford Park, South Australia, 5042, Australia
| | - E H Ooi
- Flinders Health and Medical Research Institute, Flinders University and Flinders Medical Centre, Bedford Park, South Australia, 5042, Australia
| | - D J Hussey
- Flinders Health and Medical Research Institute, Flinders University and Flinders Medical Centre, Bedford Park, South Australia, 5042, Australia.
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Marinkovich M, Vinzant S, Karkala V, Sridhar K, Gurevitch I, Dolorito J, Agarwal P, Krishnan S. 305 In vivo correction of recessive dystrophic epidermolysis bullosa (RDEB) by direct cutaneous COL7A1 gene replacement: Results of a phase 1-2 trial. J Invest Dermatol 2020. [DOI: 10.1016/j.jid.2020.03.311] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Agarwal P, Agostini B, L’Hortet AC, Zhang P, Krishnan S, Paller A. 263 First in human use of a novel in vivo gene therapy for the treatment of autosomal recessive congenital ichthyosis: Results of a phase I/II placebo controlled trial. J Invest Dermatol 2020. [DOI: 10.1016/j.jid.2020.03.269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Lee S, Yu N, Laughlin B, Haddock M, Ashman J, Merrell K, Rule W, Wittich MN, Mathis K, Merchea A, Hubbard J, Bekaii-Saab T, Ahn D, Jin Z, Mahipal A, Etzioni D, Mishra N, Krishnan S, Hallemeier C, Sio T. P-130 Short course pelvic radiotherapy for localized and oligometastatic rectal adenocarcinoma: The Mayo Clinic experience. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.04.212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Rodney JD, Deepapriya S, Annie Vinosha P, Cyril Robinson M, Krishnan S, Martin Britto Dhas SA, Jerome Das S. Impact of Synthesis Technique on Lanthanum Doped Copper Oxide Nanocrystals, an Alternative Counter Electrode for Pt-Free Dye-Sensitized Solar Cells. J Nanosci Nanotechnol 2020; 20:4023-4034. [PMID: 31968417 DOI: 10.1166/jnn.2020.17686] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The ascendancy of a counter electrode (C.E) in a dye-sensitized solar cell (DSSC) has an unrivaled impact on the performance of the dye-sensitized solar cell, where the Pt-based C.E has set up a phenomenal benchmark against its counterparts. Due to the high cost of such noble metals, an operative and a much cost effective replacement were greatly in demand to gratify this need. To address this issue, monoclinic lanthanum doped copper oxide (CuO) nanoparticles were prepared by solution combustion and co-precipitation techniques respectively as they possess highly superior optoelectronic, catalytic and charge transfer properties. The effect of incorporating lanthanum (La) ions and the variation of synthesis technique on their structural, optical, photo-thermal and morphological properties are empirically investigated by XRD, FTIR, TEM, UV-Vis, Raman and Photoacoustic Spectroscopy (PAS). The X-ray diffraction pattern revealed the formation of La-doped CuO nanoparticles. The finger-print vibrational modes of the as-synthesized samples are confirmed by the FTIR spectra. The required optical properties of the as-synthesized nanocrystals were confirmed using UV-Vis absorption spectra, from which the bandgap was determined by Kubelka-Munk plot. The Raman modes were determined using Raman spectra, further a multi-phonon band was revealed, which was formed due to the plasmon-phonon coupling. The photothermal phenomenon was revealed using the photoacoustic spectra. The morphological investigation by TEM found the change in the morphology of the material as the synthesis route is varied. The power conversion efficiency results unveiled that the combustion-derived C.E posted a promising efficiency (η) of 0.20% and the co-precipitation derived C.E posted an efficiency of 0.02%. Overall results suggest that the combustion derived La doped CuO nanostructures exhibited substantive properties with deeper implication and also stood out to be a viable, cost-effective and self-exemplifying replacement for Pt as C.E in DSSC's.
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Affiliation(s)
- John D Rodney
- Department of Physics, Loyola College, Chennai 600034, India
| | - S Deepapriya
- Department of Physics, Loyola College, Chennai 600034, India
| | - P Annie Vinosha
- Department of Physics, Loyola College, Chennai 600034, India
| | - M Cyril Robinson
- Department of Physics, Madras Christian College, Chennai 600059, India
| | - S Krishnan
- Department of Physics, Ramakrishna Mission Vivekananda College, Chennai 600004, India
| | | | - S Jerome Das
- Department of Physics, Loyola College, Chennai 600034, India
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Venkatesulu BP, Chandrasekar VT, Girdhar P, Advani P, Sharma A, Elumalai T, Hsieh C, Elghazawy HI, Verma V, Krishnan S. A systematic review and meta-analysis of cancer patients affected by a novel coronavirus. medRxiv 2020:2020.05.27.20115303. [PMID: 32511470 PMCID: PMC7265691 DOI: 10.1101/2020.05.27.20115303] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND Cancer patients with COVID-19 disease have been reported to have double the case fatality rate of the general population. MATERIALS AND METHODS A systematic search of PubMed/MEDLINE, Embase, Cochrane Central, Google Scholar, and MedRxiv was done for studies on cancer patients with COVID-19. Pooled proportions were calculated for categorical variables. Odds ratio and forest plots were constructed for both primary and secondary outcomes. The random-effects model was used to account for heterogeneity between studies. RESULTS This systematic review of 31 studies and meta-analysis of 181,323 patients from 26 studies involving 23,736 cancer patients is the largest meta-analysis to the best of our knowledge assessing outcomes in cancer patients affected by COVID-19. Our meta-analysis shows that cancer patients with COVID-19 have a higher likelihood of death (odds ratio, OR 2.54), which was largely driven by mortality among patients in China. Cancer patients were more likely to be intubated, although ICU admission rates were not statistically significant. Among cancer subtypes, the mortality was highest in hematological malignancies (OR 2.43) followed by lung cancer (OR 1.8). There was no association between receipt of a particular type of oncologic therapy and mortality. Our study showed that cancer patients affected by COVID-19 are a decade older than the normal population and have a higher proportion of co-morbidities. There was insufficient data to assess the association of COVID-directed therapy and survival outcomes in cancer patients. Despite the heterogeneity of studies and inconsistencies in reported variables and outcomes, these data could guide clinical practice and oncologic care during this unprecedented global health pandemic. CONCLUSION Cancer patients with COVID-19 disease are at increased risk of mortality and morbidity. A more nuanced understanding of the interaction between cancer-directed therapies and COVID-19-directed therapies is needed. This will require uniform prospective recording of data, possibly in multi-institutional registry databases.
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Affiliation(s)
- B P Venkatesulu
- Transitional year residency, Department of Internal Medicine, Henry Ford Hospital, Detroit, MI 48202, United States
| | - V T Chandrasekar
- Department of Gastroenterology and Hepatology, University of Kansas Medical Center, Kansas City, KS 66160, United States
| | - P Girdhar
- Department of Radiation Oncology, All India Institute of Medical Sciences, New Delhi, India
| | - P Advani
- Radiation Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Institutes of Health, National Cancer Institute, Bethesda, MD 20892, United States
| | - A Sharma
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, United States
| | - T Elumalai
- Department of Clinical Oncology, The Christie NHS Foundation Trust, Manchester, United Kingdom
| | - C Hsieh
- Department of Radiation Oncology, Institute for Radiological Research, Chang Gung Memorial Hospital at Linkou and Chang Gung University, Taoyuan City, Taiwan
- Graduate School of Biomedical Sciences, The University of Texas Health Science Center at Houston and The University of Texas MD Anderson Cancer Center, Houston, TX 77030, United States
| | - H I Elghazawy
- Department of Clinical Oncology, Faculty of Medicine, Ain Shams University, Abbaseya, Cairo, Egypt
| | - V Verma
- Department of Radiation Oncology, Allegheny General Hospital, Pittsburgh, Pennsylvania
| | - S Krishnan
- Department of Radiation Oncology, Mayo Clinic Florida, 4500 San Pablo Road S, Mayo 1N, Jacksonville, FL 32224, USA
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Anitha S, Krishnan S, Senthilkumar K, Sasirekha V. Theoretical investigation on the structure and antioxidant activity of (+) catechin and (−) epicatechin – a comparative study. Mol Phys 2020. [DOI: 10.1080/00268976.2020.1745917] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- S. Anitha
- Department of Physics, Avinashilingam Institute for Home Science and Higher Education for Women, Coimbatore, India
| | - S. Krishnan
- Department of Physics, Bharathiar University, Coimbatore, India
| | - K. Senthilkumar
- Department of Physics, Bharathiar University, Coimbatore, India
| | - V. Sasirekha
- Department of Physics, Avinashilingam Institute for Home Science and Higher Education for Women, Coimbatore, India
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Annie Vinosha P, Deepapriya S, Rodney JD, Krishnan S, Jerome Das S. Investigation on Elastic, Magnetic, Optical and Electrical Impedance Properties of Dysprosium Doped Nickel Ferrite Nanocrystals. J Nanosci Nanotechnol 2019; 19:8020-8035. [PMID: 31196323 DOI: 10.1166/jnn.2019.16864] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Rare earth dysprosium (Dy) doped nickel ferrite nanoparticles were synthesized via economically viable co-precipitation technique and studied for its elastic, structural, magnetic and electrical properties. X-ray diffraction analysis shows the formation of cubic spinel phase with a slight inclination in the cell parameters with respect to the concentration of dopant convivial. The crystallite size and strain of the nanoparticles were determined using Scherrer formula and the Williamson-Hall (W-H) technique. In addition, the theoretical parameters viz., cation distribution, bond length, oxygen positional parameters, etc., have been embrasured. The strength and types of interionic bonds in the nano ferrites were determined utilizing Fourier Transform Infrared spectral analysis. The magnetic properties were analysed using vibrating sample magnetometer at room temperature, it was found that as the dopant concentration increases, the coercivity and magnetic saturation decreases. This result is partially explained by the bridge networking of Dy3+-Fe3+ ions which is equated by Fe2+- Fe3+ ion interaction. This paper deals with the itinerant electron model to determine the distribution of cations by magnetization analysis. The optical properties of the samples were studied utilizing UV-Vis spectral analysis and the optical band gap was evaluated from Kubelka-Munk plot. Electrical impedance was analysed as a function of frequencies at room temperature. This analysis depicts the dielectric constant and loss factor tends to decline with applied frequency and AC conductivity elicits its semiconducting characteristic by obeying Jonscher's law.
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Affiliation(s)
- P Annie Vinosha
- Department of Physics, Loyola College (Autonomous), Chennai 600034, India
| | - S Deepapriya
- Department of Physics, Loyola College (Autonomous), Chennai 600034, India
| | - John D Rodney
- Department of Physics, Loyola College (Autonomous), Chennai 600034, India
| | - S Krishnan
- Department of Physics, Ramakrishna Mission Vivekananda College (Autonomous), Chennai 600004, India
| | - S Jerome Das
- Department of Physics, Loyola College (Autonomous), Chennai 600034, India
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Krishnan S, Sharma Y. To Study the Factors Affecting the Disease and Functional Outcome in Patients of Cyanotic Heart Disease. Indian Heart J 2019. [DOI: 10.1016/j.ihj.2019.11.209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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Ravikumar B, Kumudhini S, Krishnan S. Malignant Transformation of Hypertrophic Lichen Planus in a Young Pregnant Woman: A Case Report. INT J LOW EXTR WOUND 2019; 19:388-390. [PMID: 31625436 DOI: 10.1177/1534734619881584] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
In this article, we report a case of hypertrophic lichen planus transforming into cutaneous squamous cell carcinoma in a 24-year-old Indian woman at 34 weeks of gestational age. We hypothesize that immunologic alterations during pregnancy could transform a long-standing hypertrophic lichen planus into cutaneous neoplasm.
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Affiliation(s)
- Bharathi Ravikumar
- Mahatma Gandhi Medical College and Research Institute, Pondicherry, India
| | - S Kumudhini
- Mahatma Gandhi Medical College and Research Institute, Pondicherry, India
| | - S Krishnan
- Mahatma Gandhi Medical College and Research Institute, Pondicherry, India
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Hyman D, Hendifar A, Cheol Chung H, Maio M, Leary A, Spanggaard I, Rhee J, Marton M, Chen M, Krishnan S, Shapira R. Phase II study of olaparib in previously treated advanced solid tumours with homologous recombination repair mutation (HRRm) or homologous recombination repair deficiency (HRD): LYNK-002. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz239.078] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Seano G, Griveau A, Shelton S, Krishnan S, Wang N, Kloepper J, Huillard E, Batchelor T, Stemmer-Rachamimov A, Aghi M, Jain R, Rowitch D. OS12.4 In vivo dynamics and targeting of vessel co-option in glioma. Neuro Oncol 2019. [DOI: 10.1093/neuonc/noz126.076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
BACKGROUND
Gliomas comprise heterogeneous malignant glial and stromal cells. While blood vessel co-option is a potential mechanism to escape anti-angiogenic therapy, the relevance of glial phenotype in this process is unclear.
MATERIAL AND METHODS
Here, we intravitally study preclinical syngenetic models of glioma as well as patient-derived cells transplanted orthotopically. Moreover, we profoundly confirm our preclinical results with histological studies on patient specimens.
RESULTS
We show that Olig2+ oligodendrocyte precursor-like glioma cells invade by single-cell vessel co-option and preserve the blood-brain barrier (BBB). Conversely, Olig2-negative glioma cells form dense perivascular collections and promote angiogenesis and BBB breakdown, leading to innate immune cell activation. Experimentally, Olig2 promotes Wnt7b expression, a finding that correlates in human glioma profiling. Targeted Wnt7a/7b deletion or pharmacologic Wnt inhibition blocks Olig2+ glioma single-cell vessel co-option and enhances responses to temozolomide. Finally, Olig2 and Wnt7 become upregulated after anti-VEGF treatment in preclinical models and patients.
CONCLUSION
Here, we show that glioma is able to employ vessel co-option, i.e. the movement of tumor cells towards and along the pre-existing vasculature.
Glioma oligodendrocyte-like (OPCL) cells express Wnt7 that is necessary for vessel co-option and Wnt inhibitors significantly improve survival with temozolomide. Moreover, we demonstrated that anti-VEGF-treatment of glioma selects for Olig2/Wnt7+ cells
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Affiliation(s)
- G Seano
- Institut Curie Research Center, Orsay, France
- Edwin L. Steele Laboratories of Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, United States
| | - A Griveau
- Department of Pediatrics, University of California San Francisco, San Francisco, CA, United States
- Eli and Edythe Broad Institute for Stem Cell Research and Regeneration Medicine, University of California San Francisco, San Francisco, CA, United States
| | - S Shelton
- Eli and Edythe Broad Institute for Stem Cell Research and Regeneration Medicine, University of California San Francisco, San Francisco, CA, United States
| | - S Krishnan
- Edwin L. Steele Laboratories of Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, United States
| | - N Wang
- Edwin L. Steele Laboratories of Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, United States
| | - J Kloepper
- Edwin L. Steele Laboratories of Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, United States
| | - E Huillard
- ICM Brain and Spine Institute, Paris, France
| | - T Batchelor
- Stephen E. and Catherine Pappas Center for Neuro-Oncology, Department of Neurology and Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, United States
| | - A Stemmer-Rachamimov
- Department of Pathology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, United States
| | - M Aghi
- Department of Neurological Surgery and Brain Tumor Research Center, University of California San Francisco, San Francisco, CA, United States
| | - R Jain
- Edwin L. Steele Laboratories of Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, United States
| | - D Rowitch
- Department of Pediatrics, University of California San Francisco, San Francisco, CA, United States
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Singh P, Venkatesulu B, Symons J, Mahadevan L, Sanders K, Kim B, Krishnan S. Unbiased Drug Discovery Approaches to Identify Novel Radiosensitizers from Cancer Therapy Evaluation Program (CTEP) Portfolio of Drugs in Pancreatic Cancer. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Palma D, Theurer J, Prisman E, Read N, Berthelet E, Fung K, de Almeida J, Bayley A, Richardson K, Mlynarek A, Krishnan S, Le H, Mitchell S, Chen J, Corsten M, Johnson-Obaseki S, Odell M, Parker C, Kwan K, Nichols A. Radiotherapy vs. Trans-Oral Robotic Surgery for Oropharyngeal Squamous Cell Carcinoma (OPSCC): Results of a Randomized Trial. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.485] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Venkatesulu B, Mahadevan L, Hsieh C, Kim B, Sanders K, Symons J, Singh P, Sahoo N, Krishnan S. Harnessing the Differential Immune Signature of High Versus Low Linear Energy Transfer Protons to Elicit Potent Systemic Immune Responses in Colorectal Cancer. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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