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O'Brien K, Petra V, Lal D, Kwai K, McDonald M, Jeanmonod R. 224 Gender Coding in Job Advertisements for Academic, Non-Academic, and Leadership Positions in Emergency Medicine. Ann Emerg Med 2021. [DOI: 10.1016/j.annemergmed.2021.09.236] [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: 11/28/2022]
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O'Brien K, Petra V, Lal D, Kwai K, McDonald M, Jeanmonod R. 227 Gender Coding in Physician Job Advertisements and Sex Disparities in Medical and Surgical Fields. Ann Emerg Med 2021. [DOI: 10.1016/j.annemergmed.2021.09.239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Fokkens WJ, Lund VJ, Hopkins C, Hellings PW, Kern R, Reitsma S, Toppila-Salmi S, Bernal-Sprekelsen M, Mullol J, Alobid I, Terezinha Anselmo-Lima W, Bachert C, Baroody F, von Buchwald C, Cervin A, Cohen N, Constantinidis J, De Gabory L, Desrosiers M, Diamant Z, Douglas RG, Gevaert PH, Hafner A, Harvey RJ, Joos GF, Kalogjera L, Knill A, Kocks JH, Landis BN, Limpens J, Lebeer S, Lourenco O, Meco C, Matricardi PM, O'Mahony L, Philpott CM, Ryan D, Schlosser R, Senior B, Smith TL, Teeling T, Tomazic PV, Wang DY, Wang D, Zhang L, Agius AM, Ahlstrom-Emanuelsson C, Alabri R, Albu S, Alhabash S, Aleksic A, Aloulah M, Al-Qudah M, Alsaleh S, Baban MA, Baudoin T, Balvers T, Battaglia P, Bedoya JD, Beule A, Bofares KM, Braverman I, Brozek-Madry E, Richard B, Callejas C, Carrie S, Caulley L, Chussi D, de Corso E, Coste A, El Hadi U, Elfarouk A, Eloy PH, Farrokhi S, Felisati G, Ferrari MD, Fishchuk R, Grayson W, Goncalves PM, Grdinic B, Grgic V, Hamizan AW, Heinichen JV, Husain S, Ping TI, Ivaska J, Jakimovska F, Jovancevic L, Kakande E, Kamel R, Karpischenko S, Kariyawasam HH, Kawauchi H, Kjeldsen A, Klimek L, Krzeski A, Kopacheva Barsova G, Kim SW, Lal D, Letort JJ, Lopatin A, Mahdjoubi A, Mesbahi A, Netkovski J, Nyenbue Tshipukane D, Obando-Valverde A, Okano M, Onerci M, Ong YK, Orlandi R, Otori N, Ouennoughy K, Ozkan M, Peric A, Plzak J, Prokopakis E, Prepageran N, Psaltis A, Pugin B, Raftopulos M, Rombaux P, Riechelmann H, Sahtout S, Sarafoleanu CC, Searyoh K, Rhee CS, Shi J, Shkoukani M, Shukuryan AK, Sicak M, Smyth D, Sindvongs K, Soklic Kosak T, Stjarne P, Sutikno B, Steinsvag S, Tantilipikorn P, Thanaviratananich S, Tran T, Urbancic J, Valiulius A, Vasquez de Aparicio C, Vicheva D, Virkkula PM, Vicente G, Voegels R, Wagenmann MM, Wardani RS, Welge-Lussen A, Witterick I, Wright E, Zabolotniy D, Zsolt B, Zwetsloot CP. European Position Paper on Rhinosinusitis and Nasal Polyps 2020. Rhinology 2020; 58:1-464. [PMID: 32077450 DOI: 10.4193/rhin20.600] [Citation(s) in RCA: 521] [Impact Index Per Article: 130.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The European Position Paper on Rhinosinusitis and Nasal Polyps 2020 is the update of similar evidence based position papers published in 2005 and 2007 and 2012. The core objective of the EPOS2020 guideline is to provide revised, up-to-date and clear evidence-based recommendations and integrated care pathways in ARS and CRS. EPOS2020 provides an update on the literature published and studies undertaken in the eight years since the EPOS2012 position paper was published and addresses areas not extensively covered in EPOS2012 such as paediatric CRS and sinus surgery. EPOS2020 also involves new stakeholders, including pharmacists and patients, and addresses new target users who have become more involved in the management and treatment of rhinosinusitis since the publication of the last EPOS document, including pharmacists, nurses, specialised care givers and indeed patients themselves, who employ increasing self-management of their condition using over the counter treatments. The document provides suggestions for future research in this area and offers updated guidance for definitions and outcome measurements in research in different settings. EPOS2020 contains chapters on definitions and classification where we have defined a large number of terms and indicated preferred terms. A new classification of CRS into primary and secondary CRS and further division into localized and diffuse disease, based on anatomic distribution is proposed. There are extensive chapters on epidemiology and predisposing factors, inflammatory mechanisms, (differential) diagnosis of facial pain, allergic rhinitis, genetics, cystic fibrosis, aspirin exacerbated respiratory disease, immunodeficiencies, allergic fungal rhinosinusitis and the relationship between upper and lower airways. The chapters on paediatric acute and chronic rhinosinusitis are totally rewritten. All available evidence for the management of acute rhinosinusitis and chronic rhinosinusitis with or without nasal polyps in adults and children is systematically reviewed and integrated care pathways based on the evidence are proposed. Despite considerable increases in the amount of quality publications in recent years, a large number of practical clinical questions remain. It was agreed that the best way to address these was to conduct a Delphi exercise . The results have been integrated into the respective sections. Last but not least, advice for patients and pharmacists and a new list of research needs are included. The full document can be downloaded for free on the website of this journal: http://www.rhinologyjournal.com.
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Affiliation(s)
- W J Fokkens
- Department of Otorhinolaryngology, Amsterdam University Medical Centres, location AMC, Amsterdam, The Netherlands
| | - V J Lund
- Royal National Throat, Nose and Ear Hospital, UCLH, London, UK
| | - C Hopkins
- Ear, Nose and Throat Department, Guys and St. Thomas Hospital, London, United Kingdom
| | - P W Hellings
- Department of Otorhinolaryngology, Amsterdam University Medical Centres, location AMC, Amsterdam, The Netherlands.,Department of Otorhinolaryngology, Head and Neck Surgery, University Hospitals Leuven, KU Leuven, Belgium.,Upper Airways Research Laboratory and ENT Department, University Hospital Ghent, Ghent, Belgium
| | - R Kern
- Department of Otorhinolaryngology - Head and Neck Surgery, Northwestern University, Feinberg School of Medicine, Chicago, IL, USA
| | - S Reitsma
- Department of Otorhinolaryngology, Amsterdam University Medical Centres, location AMC, Amsterdam, The Netherlands
| | - S Toppila-Salmi
- Skin and Allergy Hospital, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | | | | | - I Alobid
- Rhinology and Skull Base Unit, ENT Department, Hospital Clinic de Barcelona, Universidad de Barcelona, August Pi i Sunyer Biomedical Research Institute, Barcelona, Spain
| | - W Terezinha Anselmo-Lima
- Division of Otorhinolaryngology, Department of Ophthalmology, Otorhinolaryngology, Head and Neck Surgery, Ribeirao Preto Medical School-University of Sao Paulo, Sao Paulo, Brazil
| | - C Bachert
- Upper Airways Research Laboratory and ENT Department, University Hospital Ghent, Ghent, Belgium.,Division of ENT Diseases, CLINTEC, Karolinska Institute, University of Stockholm, Stockholm, Sweden
| | - F Baroody
- Department of Otorhinolaryngology-Head and Neck Surgery, The University of Chicago Medicine and the Comer Children's Hospital, Chicago, IL, USA
| | - C von Buchwald
- Department of Otorhinolaryngology, Head and Neck Surgery and Audiology, Rigshospitalet, Copenhagen University, Hospital, Copenhagen, Denmark
| | - A Cervin
- Department of Otorhinolaryngology, Head and Neck Surgery, Royal Brisbane and Women's Hospital.,Faculty of Medicine, University of Queensland, Brisbane, Australia
| | - N Cohen
- Department of Otorhinolaryngology - Head and Neck Surgery, Perelman School of Medicine at The University of Pennsylvania, Philadelphia, PA, USA
| | - J Constantinidis
- 1st Department of ORL, Head and Neck Surgery, Aristotle University, AHEPA Hospital, Thessaloniki, Greece
| | - L De Gabory
- Rhinology and Plastic Surgery Unit, Otorhinolaryngology, Head and Neck Surgery and Pediatric ENT Department, CHU de Bordeaux, Hospital Pellegrin, Centre F-X Michelet, Bordeaux, France
| | - M Desrosiers
- Department of ORL-HNS, Universite de Montreal, Montreal, Canada
| | - Z Diamant
- Dept of Respiratory Medicine and Allergology, Skane University in Lund, Sweden.,Research Director Respiratory and Allergy, at QPS-Netherlands, Groningen, Netherlands.,Affiliate to Charles University, Dept of Respiratory Diseases, in Prague, Czech Republic
| | - R G Douglas
- Department of Surgery, The University of Auckland, Auckland, New Zealand
| | - P H Gevaert
- Department of Otorhinolaryngology, Ghent University, Ghent, Belgium
| | - A Hafner
- University of Zagreb Faculty of Pharmacy and Biochemistry, Zagreb, Croatia
| | - R J Harvey
- Rhinology and Skull Base Department, Applied Medical Research Centre, UNSW (Conjoint) and Macquarie University (Clinical), Sydney, Australia
| | - G F Joos
- Department of Respiratory Medicine, Ghent University Hospital, Ghent, Belgium
| | - L Kalogjera
- ENT Department, Zagreb School of Medicine.,University Hospital Center "Sestre milosrdnice", Zagreb, Croatia
| | - A Knill
- Patient representative, Opuscomms, London, UK
| | - J H Kocks
- Department of Inhalation Medicine, Observational Pragmatic Research Institute, Singapore
| | - B N Landis
- Rhinology-Olfactology Unit, Otorhinolaryngology Department, University Hospital of Geneva, Geneva, Switzerland
| | - J Limpens
- Medical Information Specialist, Medical Library, Amsterdam University Medical Centres, location AMC, Amsterdam, The Netherlands
| | - S Lebeer
- Department of Bioscience Engineering, University of Antwerp, Antwerp, Belgium
| | - O Lourenco
- FCS - UBI Faculty of Health Sciences, University of Beira Interior, Covilha, Portugal
| | - C Meco
- Department of Otorhinolaryngology, Head and Neck Surgery, Ankara University, Ankara, Turkey.,Department of Otorhinolaryngology, Head and Neck Surgery, Salzburg Paracelsus Medical University, Salzburg, Austria
| | - P M Matricardi
- Department of Pediatric Pneumology and Immunology, Charite - Universitatsmedizin Berlin, Berlin, Germany
| | - L O'Mahony
- Departments of Medicine and Microbiology, APC Microbiome Ireland, National University of Ireland, Cork, Ireland
| | - C M Philpott
- Department of Medicine, Norwich Medical School, University of East Anglia, Norwich, UK.,ENT Department, James Paget University Hospital, Great Yarmouth, UK
| | - D Ryan
- Allergy and Respiratory Research Group, Usher Institute of Population Health Sciences and Informatics, University of Edinburgh, Edinburgh, UK.,Optimum Patient Care, Cambridgeshire, UK
| | - R Schlosser
- Department of Otorhinolaryngology Head and Neck Surgery, Medical University of South Carolina, Charleston, USA
| | - B Senior
- UNC Otorhinolaryngology / Head and Neck Surgery, Division of Rhinology, Allergy, and Endoscopic Skull Base Surgery and Department of Neurosurgery, University of North Carolina School of Medicine, Chapel Hill, NC, USA
| | - T L Smith
- Division of Rhinology and Sinus/Skull Base Surgery, Department of Otolaryngology-Head Neck Surgery, Oregon Health and Science University, Portland, OR, USA
| | - T Teeling
- Patient representative, Task Force Healthcare, WTC Den Haag, The Netherlands
| | - P V Tomazic
- Department of Otorhinolaryngology, Head and Neck Surgery, Medical University of Graz, Graz, Austria
| | - D Y Wang
- Department of Otorhinolaryngology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - D Wang
- Rhinology Division, ENT Department.,Eye and ENT Hospital, Fudan University, Shanghai, China
| | - L Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing TongRen Hospital, Beijing, China
| | - A M Agius
- Department of Medicine and Surgery in the University of Malta
| | | | - R Alabri
- ENT Division, Surgery Department, College of Medicine and Health and Sciences, Sultan Qaboos University, Muscat, Oman
| | - S Albu
- Department of Otorhinolaryngology, Iuliu Hațieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | | | - A Aleksic
- ENT Department, University Clinical Centre, University of Banja Luka, Bosnia and Herzegovina
| | - M Aloulah
- ENT Department, King Saud University, Riyadh, Kingdom of Saudi Arabia
| | - M Al-Qudah
- Department of Otorhinolaryngology, Jordan University of Science and Technology, Irbid, Jordan
| | - S Alsaleh
- Department of Otorhinolaryngology - Head and Neck Surgery, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - M A Baban
- Department of Otorhinolaryngology - Head and Neck Surgery, University of Sulaimani, Sulaimayniha, Iraq
| | - T Baudoin
- Dept. of ORL-HNS Sisters of Mercy University Medical Center, School of Medicine University of Zagreb, Croatia
| | - T Balvers
- Department of Neurology, Leiden University Medical Center (LUMC)
| | - P Battaglia
- Division of Otorhinolaryngology, Department of Biotechnology and Life Sciences, University of Insubria, Varese, Italy
| | - J D Bedoya
- Department of Otorhinolaryngology, Universidad de Antioquia, Medellin, Colombia
| | - A Beule
- Department of Otorhinolaryngology, University Clinic of Munster, Germany
| | - K M Bofares
- Department of Otorhinolaryngology, Omar Al-Moukhtar University, Albyeda, Libya
| | - I Braverman
- Department of Otorhinolaryngology - Head and Neck Surgery, Hillel Yaffe Medical Center, Israel
| | - E Brozek-Madry
- Department of Otorhinolaryngology, Medical University of Warsaw, Poland
| | - B Richard
- Department of ENT, Makerere University, Kampala, Uganda
| | - C Callejas
- Department of Otorhinolaryngology, Pontificia Catholic University, Santiago, Chile
| | - S Carrie
- Department of Otorhinolaryngology, Head and Neck Surgery, Newcastle University, United Kingdom
| | - L Caulley
- Department of Otorhinolaryngology, Head and Neck Surgery, University of Ottawa,Toronto, Canada
| | - D Chussi
- Department of Otorhinolaryngology, Kilimanjaro Christian Medical University College, Moshi, Tanzania
| | - E de Corso
- Department of Otorhinolaryngology , La Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Universita Cattolica del Sacro Cuore, Rome, Italy
| | - A Coste
- ORL et Chirurgie Cervico-Faciale, Universite Paris-Est Creteil (UPEC), France
| | - U El Hadi
- Department of Otorhinolaryngology, American University of Beirut, Lebanon
| | - A Elfarouk
- Department of Otorhinolaryngology, Cairo University, Egypt
| | - P H Eloy
- Department of ENT, CHU UCL Namur, Yvoir, Belgium
| | - S Farrokhi
- Department of Immunology and Allergy, The Persian Gulf Tropical Medicine Research Center.,The Persian Gulf Biomedical Research Institute, Bushehr University of Medical Sciences, Bushehr, Iran
| | - G Felisati
- Department of Head and Neck, University of Milan, Italy
| | - M D Ferrari
- Department of Neurology, Leiden University Medical Center (LUMC)
| | - R Fishchuk
- Department of ENT- Organs Microsurgery, Central city clinical hospital of lvano-Frankivsk city council, Ivano-Frankivsk, Ukraine
| | - W Grayson
- Department of Otorhinolaryngology, Head and Neck Surgery, University of Alabama Birmingham, USA
| | - P M Goncalves
- ENT Department, Centro Hospitalar de Entre Douro e Vouga, Santa Maria da Feira, Portugal
| | - B Grdinic
- ENT Department, General Hospital, Pula, Pula, Croatia
| | - V Grgic
- ENT Department, Zagreb School of Medicine.,University Hospital center 'Sestre milosrdnice', Zagreb, Croatia
| | - A W Hamizan
- Department of Otorhinolaryngology, University Kebangsaan, Kuala Lumpur, Malasyia
| | - J V Heinichen
- Department of ENT of Hospital de Clinicas, Facultad de Ciencias Medicas, Universidad Nacional de Asuncion, Paraguay
| | - S Husain
- Department of Otorhinolaryngology, Head and Neck Surgery, National University of Malaysia, Kuala Lumpur, Malaysia
| | - T I Ping
- Department ORLHNS, University Malaysia Sarawak, Kuching, Malaysia
| | - J Ivaska
- Clinic of Ear, Nose, Throat and Eye diseases, Vilnius University, Lithuania
| | - F Jakimovska
- ENT Department of Medical Faculty, St Cyril and Methodius University of Skopje, North Macedonia
| | - L Jovancevic
- Department of Otorhinolaryngology, Head and Neck Surgery, Clinical Centre of Vojvodina, Faculty of Medicine, University of Novi Sad, Serbia
| | - E Kakande
- Department of ENT Surgery, Mulago National Referral Hospital Kampala, Uganda
| | - R Kamel
- Department of Otorhinolaryngology, Head and Neck Surgery, Cairo University, Egypt
| | - S Karpischenko
- ENT Department, Director of Saint Petersburg Research Institute of Ear, Throat , Nose and Speech.,Professor and Chairman of First Pavlov State Medical University, Saint Petersburg, Russia
| | - H H Kariyawasam
- Department of Allergy and Clinical Immunology, Royal National ENT Hospital, London, England
| | - H Kawauchi
- 96. Department of Otorhinolaryngology, Shimane University, Matsue, Shimane, Japan
| | - A Kjeldsen
- Department of Otorhinolaryngology, Head and Neck Surgery, University of Southern Denmark, Odense, Denmark
| | - L Klimek
- Center of Rhinology and Allergology, Wiesbaden, Hesse, Germany
| | - A Krzeski
- Department of Otorhinolaryngology, Warsaw Medical University, Warsaw, Poland
| | - G Kopacheva Barsova
- Department of Otorhinolaryngology, University If Medicine, st. Ciril and Methodius, Skopje
| | - S W Kim
- Department of Otorhinolaryngology, Head and Neck Surgery, Kyung Hee University, Seoul, South Korea
| | - D Lal
- Department of Otorhinolaryngology, Head and Neck Surgery, Mayo Clinic in Arizona, Phoenix, Arizona, USA
| | - J J Letort
- Department of Otorhinolaryngology, Pontifica Catholic University of Ecuador, Quito, Ecuador
| | - A Lopatin
- Department of Otorhinolaryngology, Policlinic No.1- Senior ENT Consultant and Surgeon.,President of Russian Rhinologic Society, Moscow, Russia
| | | | - A Mesbahi
- Department of Facial Surgery, Khodadoust Hospital, Ordibehesht Hospital, Shiraz, Iran
| | - J Netkovski
- Department of Otorhinolaryngology-Head and Neck Surgery, St. Cyril and Methodius, Skopje, Republic of North Macedonia
| | - D Nyenbue Tshipukane
- Department of Otorhinolaryngology, University of Kinshasa, Kinshasa, Democratic Republic of Congo
| | - A Obando-Valverde
- Department of Otorhinolaryngology and Surgery, Hospital Mexico, University of Costa Rica, San Jose, Costa Rica
| | - M Okano
- Department of Otorhinolaryngology, International University of Health and Welfare, Narita , Japan
| | - M Onerci
- Department of Otorhinolaryngology, Hacettepe, Ankara, Turkey
| | - Y K Ong
- Department of Otorhinolaryngology, Head and Neck Surgery, University of Singapore, National University Hospital, Singapore
| | - R Orlandi
- Department of Otorhinolaryngology, University of Utah, Salt Lake City, Utah, USA
| | - N Otori
- Department of Otorhinolaryngology at The Jikei University School of Medicine,Tokyo, Japan
| | - K Ouennoughy
- Department of Otorhinolaryngology-Head and Neck Surgery, Saad Dahleb Blida 1, Blida, Algeria
| | - M Ozkan
- Department of Otorhinolaryngology, University of Health Sciences, Ankara City Hospital, Turkey
| | - A Peric
- Department of Otorhinolaryngology, Military Medical Academy, Faculty of Medicine, University of Defense, Belgrade, Serbia
| | - J Plzak
- Department of Otorhinolaryngology, Head and Neck Surgery, 1st Faculty of Medicine, Charles University, Prague, Czech Republic
| | - E Prokopakis
- Department of Otorhinolaryngology, University of Crete School of Medicine, Heraklion, Crete, Greece
| | - N Prepageran
- Department of ENT, University Malaya, Kuala Lumpur, Malaysia
| | - A Psaltis
- Department of Otorhinolaryngology, Head and Neck Surgery, University of Adelaide, Adelaide, Australia
| | - B Pugin
- Department of Health Sciences and Technology, ETH Zurich, Switzerland
| | - M Raftopulos
- Department of Otorhinolaryngology, Amsterdam University Medical Centres, location AMC, Amsterdam, The Netherlands.,Royal Australian College of Surgeons, Trainee Representative (Australia)
| | - P Rombaux
- Department of Otorhinolaryngology, University of Louvain, Brussels, Belgium
| | - H Riechelmann
- Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital, Ulm, Baden-Wurttemberg, Germany
| | - S Sahtout
- Faculty of Medicine of Tunis, Tunis El Manar University, Tunis, Tunisia
| | - C-C Sarafoleanu
- ENT and H NS Department, Santa Maria Hospital, Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
| | - K Searyoh
- Surgery Ear, Nose and Throat Unit, School of Medicine and Dentistry, University of Ghana, Korle-Bu Teaching Hospital, Accra, Ghana
| | - C-S Rhee
- Department of Otorhinolaryngology, Head and Neck Surgery, Seoul, Seoul National University, Seoul, Korea
| | - J Shi
- Department of Rhinology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - M Shkoukani
- Department of Otorhinolaryngology, Head and Neck Surgery, Cleveland Clinic Abu Dhabi, United Arab Emirates
| | - A K Shukuryan
- Department of Otorhinolaryngology, Yerevan State Medical University, Yerevan, Armenia
| | - M Sicak
- Department of Otorhinolaryngology, Head and Neck Surgery, Central Military Hospital, Slovakia, Slovak Health University Bratislava and Catholic University, Ruzom berok, Slovakia
| | - D Smyth
- Department of Otorhinolaryngology, Head and Neck Surgery, Royal College of Surgeons in Ireland and University College Cork, Waterford, Ireland
| | - K Sindvongs
- Department of Otorhinolaryngology, Chulalongkorn University, Bangkok, Thailand
| | - T Soklic Kosak
- University Medical Centre Ljubljana, Department of Otorhinolaryngology and Cervicofacial Surgery, University of Ljubljana, Faculty of Medicine, Ljubljana, Slovenia
| | - P Stjarne
- Department of Otorhinolaryngology, Karolinska University Hospital, Stockholm, Sweden
| | - B Sutikno
- Department of Otorhinolaryngology, Head and Neck Surgery, University of Airlangga, Surabaya, Indonesia
| | - S Steinsvag
- Department of ORL, University of Bergen, Norway
| | - P Tantilipikorn
- Department of Otorhinolaryngology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - S Thanaviratananich
- Department of Otorhinolaryngology, Head and Neck Surgery, Cleveland Clinic Abu Dhabi, United Arab Emirates
| | - T Tran
- Department of ENT Hospital of Ho Chi Minh city, Faculty of medicine of Ho Chi Minh city Vietnam National University, Vietnam
| | - J Urbancic
- Department of Otorhinolaryngology and cervicofacial surgery, UMC Ljubljana, University of Ljubljana, Medical Faculty, Ljubljana, Slovenia
| | - A Valiulius
- Department of Children's diseases, Vilnius University Medical Faculty, Institute of Clinical Medicine, Vilnius, Lithuania
| | - C Vasquez de Aparicio
- Department of Paediatric Surgery, National Hospital Benjamin Bloom, National University of El Salvador, San Salvador, El Salvador
| | - D Vicheva
- Department of Otorhinolaryngology, Medical University Plovdiv, Bulgaria
| | - P M Virkkula
- Department of Otorhinolaryngology, Head and Neck Surgery, Helsinki, University Hospital, Helsinki, Finland
| | - G Vicente
- Department of Otolaryngology, St. Luke's Medical Centre, Quezon City, The Philippines
| | - R Voegels
- Department of Otorhinolaryngology, University of Sao Paulo, Sau Paulo, Brazil
| | - M M Wagenmann
- Department of Otorhinolaryngology, Dusseldorf University Hospital, Dusseldorf, German
| | - R S Wardani
- Department of Otorhinolaryngology Head and Neck Surgery, Dr. Cipto Mangunkusumo Hospital, University of Indonesia, Jakarta, Indonesia
| | - A Welge-Lussen
- Department of Otorhinolaryngology, University Hospital Basel, University Basel, Switzerland
| | - I Witterick
- Department of Otorhinolaryngology, Head and Neck Surgery, University of Ottawa,Toronto, Canada
| | - E Wright
- Department of Surgery, University of Alberta, Edmonton, Alberta, Canada
| | - D Zabolotniy
- State Institution of O.S. Kolomiychenko Institute of Othorhnilarungology of National Academy of Medical Sciences of Ukraine, Kiev, Ukraine
| | - B Zsolt
- Department of Otorhinolaryngology, Head and Neck Surgery, University of Szeged, Hungary
| | - C P Zwetsloot
- Department of Neurology, Dijklander Ziekenhuis, Purmerend, The Netherlandsn
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Gujjar A, Lal D, Kumar S, Nandhagopal R, Ganguly S, Al-Asmi A. Patients with dual stroke mechanisms: Outcomes in a university hospital stroke registry. J Neurol Sci 2019. [DOI: 10.1016/j.jns.2019.10.603] [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]
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Roth GA, Johnson CO, Abate KH, Abd-Allah F, Ahmed M, Alam K, Alam T, Alvis-Guzman N, Ansari H, Ärnlöv J, Atey TM, Awasthi A, Awoke T, Barac A, Bärnighausen T, Bedi N, Bennett D, Bensenor I, Biadgilign S, Castañeda-Orjuela C, Catalá-López F, Davletov K, Dharmaratne S, Ding EL, Dubey M, Faraon EJA, Farid T, Farvid MS, Feigin V, Fernandes J, Frostad J, Gebru A, Geleijnse JM, Gona PN, Griswold M, Hailu GB, Hankey GJ, Hassen HY, Havmoeller R, Hay S, Heckbert SR, Irvine CMS, James SL, Jara D, Kasaeian A, Khan AR, Khera S, Khoja AT, Khubchandani J, Kim D, Kolte D, Lal D, Larsson A, Linn S, Lotufo PA, Magdy Abd El Razek H, Mazidi M, Meier T, Mendoza W, Mensah GA, Meretoja A, Mezgebe HB, Mirrakhimov E, Mohammed S, Moran AE, Nguyen G, Nguyen M, Ong KL, Owolabi M, Pletcher M, Pourmalek F, Purcell CA, Qorbani M, Rahman M, Rai RK, Ram U, Reitsma MB, Renzaho AMN, Rios-Blancas MJ, Safiri S, Salomon JA, Sartorius B, Sepanlou SG, Shaikh MA, Silva D, Stranges S, Tabarés-Seisdedos R, Tadele Atnafu N, Thakur JS, Topor-Madry R, Truelsen T, Tuzcu EM, Tyrovolas S, Ukwaja KN, Vasankari T, Vlassov V, Vollset SE, Wakayo T, Weintraub R, Wolfe C, Workicho A, Xu G, Yadgir S, Yano Y, Yip P, Yonemoto N, Younis M, Yu C, Zaidi Z, Zaki MES, Zipkin B, Afshin A, Gakidou E, Lim SS, Mokdad AH, Naghavi M, Vos T, Murray CJL. The Burden of Cardiovascular Diseases Among US States, 1990-2016. JAMA Cardiol 2019; 3:375-389. [PMID: 29641820 PMCID: PMC6145754 DOI: 10.1001/jamacardio.2018.0385] [Citation(s) in RCA: 235] [Impact Index Per Article: 47.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Question How does the total burden of cardiovascular diseases vary across US states? Findings In this study using the Global Burden of Disease methodology, large disparities in total burden of CVD were found between US states despite marked improvements in CVD burden. Meaning These estimates can provide a benchmark for states working to focus on key risk factors, improve health care quality, and lower health care costs. Importance Cardiovascular disease (CVD) is the leading cause of death in the United States, but regional variation within the United States is large. Comparable and consistent state-level measures of total CVD burden and risk factors have not been produced previously. Objective To quantify and describe levels and trends of lost health due to CVD within the United States from 1990 to 2016 as well as risk factors driving these changes. Design, Setting, and Participants Using the Global Burden of Disease methodology, cardiovascular disease mortality, nonfatal health outcomes, and associated risk factors were analyzed by age group, sex, and year from 1990 to 2016 for all residents in the United States using standardized approaches for data processing and statistical modeling. Burden of disease was estimated for 10 groupings of CVD, and comparative risk analysis was performed. Data were analyzed from August 2016 to July 2017. Exposures Residing in the United States. Main Outcomes and Measures Cardiovascular disease disability-adjusted life-years (DALYs). Results Between 1990 and 2016, age-standardized CVD DALYs for all states decreased. Several states had large rises in their relative rank ordering for total CVD DALYs among states, including Arkansas, Oklahoma, Alabama, Kentucky, Missouri, Indiana, Kansas, Alaska, and Iowa. The rate of decline varied widely across states, and CVD burden increased for a small number of states in the most recent years. Cardiovascular disease DALYs remained twice as large among men compared with women. Ischemic heart disease was the leading cause of CVD DALYs in all states, but the second most common varied by state. Trends were driven by 12 groups of risk factors, with the largest attributable CVD burden due to dietary risk exposures followed by high systolic blood pressure, high body mass index, high total cholesterol level, high fasting plasma glucose level, tobacco smoking, and low levels of physical activity. Increases in risk-deleted CVD DALY rates between 2006 and 2016 in 16 states suggest additional unmeasured risks beyond these traditional factors. Conclusions and Relevance Large disparities in total burden of CVD persist between US states despite marked improvements in CVD burden. Differences in CVD burden are largely attributable to modifiable risk exposures.
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Affiliation(s)
| | - Gregory A Roth
- Institute for Health Metrics and Evaluation, University of Washington, Seattle.,Division of Cardiology, Department of Medicine, University of Washington, Seattle
| | - Catherine O Johnson
- Institute for Health Metrics and Evaluation, University of Washington, Seattle
| | | | | | | | - Khurshid Alam
- The University of Western Australia, Perth, Western Australia, Australia
| | - Tahiya Alam
- Institute for Health Metrics and Evaluation, University of Washington, Seattle
| | | | | | | | | | - Ashish Awasthi
- Indian Institute of Public Health Gandhinagar, Public Health Foundation of India, Gandhinagar, Gujarat, India
| | | | | | | | | | | | | | | | | | - Ferrán Catalá-López
- INCLIVA Health Research Institute, Centro de Investigación Biomédica en Red Salud Mental, University of Valencia, Valencia, Spain
| | - Kairat Davletov
- Asfendiyarov Kazakh National Medical University, Almaty, Kazakhstan
| | | | - Eric L Ding
- Harvard T. H. Chan School of Public Health, Boston, Massachusetts
| | - Manisha Dubey
- International Institute for Population Sciences, Mumbai, India
| | | | - Talha Farid
- University of Louisville, Louisville, Kentucky
| | - Maryam S Farvid
- Harvard T. H. Chan School of Public Health, Boston, Massachusetts
| | - Valery Feigin
- Auckland University of Technology, Auckland, New Zealand
| | | | - Joseph Frostad
- Institute for Health Metrics and Evaluation, University of Washington, Seattle
| | | | | | | | - Max Griswold
- Institute for Health Metrics and Evaluation, University of Washington, Seattle
| | | | - Graeme J Hankey
- School of Medicine and Pharmacology, University of Western Australia, Perth, Western Australia, Australia
| | | | | | - Simon Hay
- Institute for Health Metrics and Evaluation, University of Washington, Seattle
| | - Susan R Heckbert
- Institute for Health Metrics and Evaluation, University of Washington, Seattle
| | | | - Spencer Lewis James
- Institute for Health Metrics and Evaluation, University of Washington, Seattle
| | - Dube Jara
- Debre Markos University, Debre Markos, Ethiopia
| | - Amir Kasaeian
- Hematology, Oncology, and Stem Cell Transplantation Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | | | | | - Abdullah T Khoja
- Al Imam Mohammad Ibn Saud Islamic University, Riyadh, Saudi Arabia
| | | | - Daniel Kim
- Northeastern University, Boston, Massachusetts
| | | | - Dharmesh Lal
- Public Health Foundation of India, New Delhi, India
| | - Anders Larsson
- Department of Medical Sciences, Uppsala University, Uppsala, Sweden
| | | | - Paulo A Lotufo
- Clinical Research Center, University Hospital, University of São Paulo, São Paulo, São Paulo, Brazil
| | | | - Mohsen Mazidi
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Chaoyang, Beijing
| | - Toni Meier
- Martin Luther University of Halle-Wittenberg, Halle, Germany
| | | | | | - Atte Meretoja
- University of Melbourne, Melbourne, Victoria, Australia
| | | | | | | | | | - Grant Nguyen
- Institute for Health Metrics and Evaluation, University of Washington, Seattle
| | - Minh Nguyen
- Institute for Health Metrics and Evaluation, University of Washington, Seattle
| | - Kanyin Liane Ong
- Institute for Health Metrics and Evaluation, University of Washington, Seattle
| | - Mayowa Owolabi
- Department of Medicine, University of Ibadan, Ibadan, Oyo State, Nigeria
| | - Martin Pletcher
- Institute for Health Metrics and Evaluation, University of Washington, Seattle
| | | | - Caroline A Purcell
- Institute for Health Metrics and Evaluation, University of Washington, Seattle
| | - Mostafa Qorbani
- Noncommunicable Diseases Research Center, Alborz University of Medical Sciences, Hassan Abad, Karaj, Iran
| | | | - Rajesh Kumar Rai
- Society for Health and Demographic Surveillance, West Bengal, India
| | - Usha Ram
- International Institute for Population Sciences, Mumbai, India
| | | | | | | | - Saeid Safiri
- Maragheh University of Medical Sciences, East Azerbaijan Province, Iran
| | | | | | | | | | - Diego Silva
- Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Saverio Stranges
- Department of Epidemiology and Biostatistics, Schulich School of Medicine & Dentistry, Western University, London, Ontario, Canada
| | - Rafael Tabarés-Seisdedos
- INCLIVA Health Research Institute, Centro de Investigación Biomédica en Red Salud Mental, University of Valencia, Valencia, Spain
| | | | - J S Thakur
- Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | | | | | | | - Stefanos Tyrovolas
- Hospital Sant Joan de Déu Barcelona, Sant Joan de Déu Research Foundation, Centro de Investigación Biomédica en Red Salud Mental, Universitat de Barcelona, Barcelona, Spain
| | - Kingsley Nnanna Ukwaja
- Department of Internal Medicine, Federal Teaching Hospital, Abakaliki, Ebonyi State, Nigeria
| | - Tommi Vasankari
- UKK Institute for Health Promotion Research, Tampere, Finland
| | - Vasiliy Vlassov
- National Research University Higher School of Economics, Moscow, Russia
| | | | | | | | | | | | - Gelin Xu
- Nanjing University School of Medicine, Nanjing, China
| | - Simon Yadgir
- Institute for Health Metrics and Evaluation, University of Washington, Seattle
| | - Yuichiro Yano
- The University of Mississippi Medical Center, Jackson
| | - Paul Yip
- University of Hong Kong, Pokfulam, Hong Kong
| | | | | | | | | | | | - Ben Zipkin
- Institute for Health Metrics and Evaluation, University of Washington, Seattle
| | - Ashkan Afshin
- Institute for Health Metrics and Evaluation, University of Washington, Seattle
| | - Emmanuela Gakidou
- Institute for Health Metrics and Evaluation, University of Washington, Seattle
| | - Stephen S Lim
- Institute for Health Metrics and Evaluation, University of Washington, Seattle
| | - Ali H Mokdad
- Institute for Health Metrics and Evaluation, University of Washington, Seattle
| | - Mohsen Naghavi
- Institute for Health Metrics and Evaluation, University of Washington, Seattle
| | - Theo Vos
- Institute for Health Metrics and Evaluation, University of Washington, Seattle
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6
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Traicoff D, Pope A, Bloland P, Lal D, Bahl J, Stewart S, Ryman T, Abbruzzese M, Lee C, Ahrendts J, Shamalla L, Sandhu H. Developing standardized competencies to strengthen immunization systems and workforce. Vaccine 2019; 37:1428-1435. [PMID: 30765172 DOI: 10.1016/j.vaccine.2019.01.047] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [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: 10/26/2018] [Revised: 01/11/2019] [Accepted: 01/24/2019] [Indexed: 11/16/2022]
Abstract
Despite global support for immunization as a core component of the human right to health and the maturity of immunization programs in low- and middle-income countries throughout the world, there is no comprehensive description of the standardized competencies needed for immunization programs at the national, multiple sub-national, and community levels. The lack of defined and standardized competencies means countries have few guidelines to help them address immunization workforce planning, program management, and performance monitoring. Potential consequences resulting from the lack of defined competencies include inadequate or inefficient distribution of resources to support the required functions and difficulties in adequately managing the health workforce. In 2015, an international multi-agency working group convened to define standardized competencies that national immunization programs could adapt for their own workforce planning needs. The working group used a stepwise approach to ensure that the competencies would align with immunization programs' objectives. The first step defined the attributes of a successful immunization program. The group then defined the work functions needed to achieve those attributes. Based on the work functions, the working group defined specific competencies. This process resulted in three products: (1) Attributes of an immunization program described within eight technical domains at four levels within a health system: National, Provincial, District/Local, and Community; (2) 229 distinct functions within those eight domains at each of the four levels; and (3) 242 competencies, representing eight technical domains and two foundational domains (Management and Leadership and Vaccine Preventable Diseases and Program). Currently available as a working draft and being tested with immunization projects in several countries, the final document will be published by WHO as normative guidelines. Vertical immunization programs as well as integrated systems can customize the framework to suit their needs. Standardized competencies can support immunization program improvements and help strengthen effective health systems.
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Affiliation(s)
- Denise Traicoff
- Centers for Disease Control and Prevention, 1600 Clifton Rd, MS A-04, Atlanta, GA 30333, USA.
| | - Alice Pope
- Centers for Disease Control and Prevention, 1600 Clifton Rd, MS A-04, Atlanta, GA 30333, USA.
| | - Peter Bloland
- Centers for Disease Control and Prevention, 1600 Clifton Rd, MS A-04, Atlanta, GA 30333, USA.
| | - Dharmesh Lal
- Public Health Foundation of India, Plot No. 47, Sector 44, Institutional Area, Gurugram 122002, India
| | - Jhilmil Bahl
- World Health Organization, 20 Avenue Appia, 1211 Geneva 27, Switzerland.
| | - Steven Stewart
- Centers for Disease Control and Prevention, 1600 Clifton Rd, MS A-04, Atlanta, GA 30333, USA
| | - Tove Ryman
- Bill & Melinda Gates Foundation, 500 5th Ave, Seattle, WA 98109, USA.
| | - Molly Abbruzzese
- Bill & Melinda Gates Foundation, 500 5th Ave, Seattle, WA 98109, USA.
| | - Carla Lee
- Centers for Disease Control and Prevention, 1600 Clifton Rd, MS A-04, Atlanta, GA 30333, USA.
| | - Johannes Ahrendts
- Gavi, The Vaccine Alliance, Global Health Campus, Chemin du Pommier 40, 1218 Grand-Saconnex, Geneva, Switzerland.
| | - Lorraine Shamalla
- UNICEF, Programme Division/Polio, 3 United Nation Plaza, 8th Floor, New York, NY 10017, USA.
| | - Hardeep Sandhu
- Centers for Disease Control and Prevention, 1600 Clifton Rd, MS A-04, Atlanta, GA 30333, USA.
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7
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Ramkumar S, Ranjbar S, Ning S, Lal D, Zwart CM, Wood CP, Weindling SM, Wu T, Mitchell JR, Li J, Hoxworth JM. MRI-Based Texture Analysis to Differentiate Sinonasal Squamous Cell Carcinoma from Inverted Papilloma. AJNR Am J Neuroradiol 2017; 38:1019-1025. [PMID: 28255033 DOI: 10.3174/ajnr.a5106] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Accepted: 12/13/2016] [Indexed: 12/24/2022]
Abstract
BACKGROUND AND PURPOSE Because sinonasal inverted papilloma can harbor squamous cell carcinoma, differentiating these tumors is relevant. The objectives of this study were to determine whether MR imaging-based texture analysis can accurately classify cases of noncoexistent squamous cell carcinoma and inverted papilloma and to compare this classification performance with neuroradiologists' review. MATERIALS AND METHODS Adult patients who had inverted papilloma or squamous cell carcinoma resected were eligible (coexistent inverted papilloma and squamous cell carcinoma were excluded). Inclusion required tumor size of >1.5 cm and preoperative MR imaging with axial T1, axial T2, and axial T1 postcontrast sequences. Five well-established texture analysis algorithms were applied to an ROI from the largest tumor cross-section. For a training dataset, machine-learning algorithms were used to identify the most accurate model, and performance was also evaluated in a validation dataset. On the basis of 3 separate blinded reviews of the ROI, isolated tumor, and entire images, 2 neuroradiologists predicted tumor type in consensus. RESULTS The inverted papilloma (n = 24) and squamous cell carcinoma (n = 22) cohorts were matched for age and sex, while squamous cell carcinoma tumor volume was larger (P = .001). The best classification model achieved similar accuracies for training (17 squamous cell carcinomas, 16 inverted papillomas) and validation (7 squamous cell carcinomas, 6 inverted papillomas) datasets of 90.9% and 84.6%, respectively (P = .537). For the combined training and validation cohorts, the machine-learning accuracy (89.1%) was better than that of the neuroradiologists' ROI review (56.5%, P = .0004) but not significantly different from the neuroradiologists' review of the tumors (73.9%, P = .060) or entire images (87.0%, P = .748). CONCLUSIONS MR imaging-based texture analysis has the potential to differentiate squamous cell carcinoma from inverted papilloma and may, in the future, provide incremental information to the neuroradiologist.
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Affiliation(s)
- S Ramkumar
- From the School of Computing, Informatics, and Decision Systems Engineering (S.Ramkumar, S.N., T.W., J.L.)
| | - S Ranjbar
- Department of Biomedical Informatics (S.Ranjbar), Arizona State University, Tempe, Arizona
| | - S Ning
- From the School of Computing, Informatics, and Decision Systems Engineering (S.Ramkumar, S.N., T.W., J.L.)
| | - D Lal
- Departments of Otolaryngology (D.L.)
| | - C M Zwart
- Radiology (C.M.Z., J.M.H.), Mayo Clinic, Phoenix, Arizona
| | - C P Wood
- Department of Radiology (C.P.W.), Mayo Clinic, Rochester, Minnesota
| | - S M Weindling
- Department of Radiology (S.M.W.), Mayo Clinic, Jacksonville, Florida
| | - T Wu
- From the School of Computing, Informatics, and Decision Systems Engineering (S.Ramkumar, S.N., T.W., J.L.)
| | - J R Mitchell
- Department of Research (J.R.M.), Mayo Clinic, Scottsdale, Arizona
| | - J Li
- From the School of Computing, Informatics, and Decision Systems Engineering (S.Ramkumar, S.N., T.W., J.L.)
| | - J M Hoxworth
- Radiology (C.M.Z., J.M.H.), Mayo Clinic, Phoenix, Arizona
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8
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9
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Tomblinson CM, Cheng MR, Lal D, Hoxworth JM. The Impact of Middle Turbinate Concha Bullosa on the Severity of Inferior Turbinate Hypertrophy in Patients with a Deviated Nasal Septum. AJNR Am J Neuroradiol 2016; 37:1324-30. [PMID: 26939632 DOI: 10.3174/ajnr.a4705] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2015] [Accepted: 12/21/2015] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Inferior turbinate hypertrophy and concha bullosa often occur opposite the direction of nasal septal deviation. The objective of this retrospective study was to determine whether a concha bullosa impacts inferior turbinate hypertrophy in patients who have nasal septal deviation. MATERIALS AND METHODS The electronic medical record was used to identify sinus CT scans exhibiting nasal septal deviation for 100 adult subjects without and 100 subjects with unilateral middle turbinate concha bullosa. Exclusion criteria included previous sinonasal surgery, tumor, sinusitis, septal perforation, and craniofacial trauma. Nasal septal deviation was characterized in the coronal plane by distance from the midline (severity) and height from the nasal floor. Measurement differences between sides for inferior turbinate width (overall and bone), medial mucosa, and distance to the lateral nasal wall were calculated as inferior turbinate hypertrophy indicators. RESULTS The cohorts with and without concha bullosa were similarly matched for age, sex, and nasal septal deviation severity, though nasal septal deviation height was greater in the cohort with concha bullosa than in the cohort without concha bullosa (19.1 ± 4.3 mm versus 13.5 ± 4.1 mm, P < .001). Compensatory inferior turbinate hypertrophy was significantly greater in the cohort without concha bullosa than in the cohort with it as measured by side-to-side differences in turbinate overall width, bone width, and distance to the lateral nasal wall (P < .01), but not the medial mucosa. Multiple linear regression analyses found nasal septal deviation severity and height to be significant predictors of inferior turbinate hypertrophy with positive and negative relationships, respectively (P < .001). CONCLUSIONS Inferior turbinate hypertrophy is directly proportional to nasal septal deviation severity and inversely proportional to nasal septal deviation height. The effect of a concha bullosa on inferior turbinate hypertrophy is primarily mediated through influence on septal morphology, because the nasal septal deviation apex tends to be positioned more superior from the nasal floor in these patients.
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Affiliation(s)
| | | | - D Lal
- Otolaryngology (D.L.), Mayo Clinic, Phoenix, Arizona
| | - J M Hoxworth
- From the Departments of Radiology (C.M.T., J.M.H.)
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10
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Divekar RD, Samant S, Rank MA, Hagan J, Lal D, O'Brien EK, Kita H. Immunological profiling in chronic rhinosinusitis with nasal polyps reveals distinct VEGF and GM-CSF signatures during symptomatic exacerbations. Clin Exp Allergy 2015; 45:767-78. [PMID: 25429844 DOI: 10.1111/cea.12463] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [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: 09/06/2014] [Revised: 11/19/2014] [Accepted: 11/21/2014] [Indexed: 11/29/2022]
Abstract
BACKGROUND The mechanisms and immune pathways associated with chronic rhinosinusitis (CRS) are not fully understood. Immunological changes during acute exacerbation of CRS may provide valuable clues to the pathogenesis and perpetuation of the disease. OBJECTIVE To characterize local and systemic immune responses associated with acute worsening of sinonasal symptoms during exacerbation in CRS with nasal polyps (CRSwNP) compared to controls. METHODS This was a non-interventional prospective study of individuals with CRSwNP and normal controls. Subjects underwent a baseline visit with collection of nasal secretions, nasal washes, and serum specimens. Within 3 days of acute worsening of sinonasal symptoms, subjects underwent a study visit, followed by a post-visit 2 weeks later. The sinonasal outcome test-22 (SNOT-22) scores and immunological parameters in the specimens were analysed using a novel, unsupervised learning method and by conventional univariate analysis. RESULTS Both CRSwNP patients and control subjects showed a significant increase in SNOT-22 scores during acute exacerbation. Increased nasal levels of IL-6, IL-5, and eosinophil major basic protein were observed in CRSwNP patients. A network analysis of serum specimens revealed changes in a set of immunological parameters, which are distinctly associated with CRSwNP but not with controls. In particular, systemic increases in VEGF and GM-CSF levels were notable and were validated by a conventional analysis. CONCLUSIONS CRSwNP patients demonstrate distinct immunological changes locally and systemically during acute exacerbation. Growth factors VEGF and GM-CSF may be involved in the immunopathogenesis of subjects with CRS and nasal polyps experiencing exacerbation.
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Affiliation(s)
- R D Divekar
- Division of Allergic Diseases, Mayo Clinic, Rochester, MN, USA
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Wadhawan R, Gupta M, Laharwal A, Tsai C, Tang S, Hu J, Tan WB, Clara ES, Prakash P, Shabbir A, Lomanto D, Takahashi M, Matsuya H, Nishinari N, Szura M, Pasternak A, Kibil W, Solecki R, Matyja A, Porter A, Berney C, Niebuhr H, Mayer F, Köckerling F, Lal D, Klobusicky P, Feyerherd P, Ates M, Kinaci E, Kose E, Soyer V, Sarici B, Cuglan S, Korkmaz F, Dirican A, Gómez-Menchero J, Jurado PJ, Luque JB, Moreno JG, Grau JMS, Jurado JFG, Giubileo M, Federico L, De Nigris S, Ventura P, García-Pastor P, Carbonell-Tatay F, Torregrosa-Gallud A, Forgione U, Feleshtynsky Y, Vatamanyuk VF, Svyrydovsky SA, Kokhanevych AV, Curado-Soriano A, Infantes-Ormad M, Valera-Sanchez Z, Dominguez-Amodeo A, Naranjo-Fernandez JR, Ruiz Zafra A, Navarrete-Carcer E, Oliva-Mompean F, Padillo-Ruiz J, Brochado J, Farah F, Nicastro RG, Condi GA, De Marco M, Samaan R, Radtke MC, Ji Z, Li J. Topic: Inguinal Hernia - Fixation. Hernia 2015; 19 Suppl 1:S254-60. [PMID: 26518818 DOI: 10.1007/bf03355366] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- R Wadhawan
- Fortis Hospital, Vasant Kunj, New Delhi, India
| | - M Gupta
- Fortis Hospital, Vasant Kunj, New Delhi, India
| | - A Laharwal
- Fortis Hospital, Vasant Kunj, New Delhi, India
| | - C Tsai
- Taichung Hospital, Ministry of Health and Welfare, Taichung, Taiwan
| | - S Tang
- Minimally Invasive Surgical Centre, Department of Surgery, Yong Loo Lin School of Medicine, National University Singapore, Singapore, Singapore
| | - J Hu
- Minimally Invasive Surgical Centre, Department of Surgery, Yong Loo Lin School of Medicine, National University Singapore, Singapore, Singapore
| | - W B Tan
- Minimally Invasive Surgical Centre, Department of Surgery, Yong Loo Lin School of Medicine, National University Singapore, Singapore, Singapore
| | - E Sta Clara
- Minimally Invasive Surgical Centre, Department of Surgery, Yong Loo Lin School of Medicine, National University Singapore, Singapore, Singapore
| | - P Prakash
- Minimally Invasive Surgical Centre, Department of Surgery, Yong Loo Lin School of Medicine, National University Singapore, Singapore, Singapore
| | - A Shabbir
- Minimally Invasive Surgical Centre, Department of Surgery, Yong Loo Lin School of Medicine, National University Singapore, Singapore, Singapore
| | - D Lomanto
- Minimally Invasive Surgical Centre, Department of Surgery, Yong Loo Lin School of Medicine, National University Singapore, Singapore, Singapore
| | | | - H Matsuya
- Morioka Yuai Hospital, Morioka, Japan
| | | | - M Szura
- I Department of General Surgery, Jagiellonian University, Krakow, Poland
| | - A Pasternak
- I Department of General Surgery, Jagiellonian University, Krakow, Poland.,Department of Anatomy, Jagiellonian University, Krakow, Poland
| | - W Kibil
- I Department of General Surgery, Jagiellonian University, Krakow, Poland
| | - R Solecki
- I Department of General Surgery, Jagiellonian University, Krakow, Poland
| | - A Matyja
- I Department of General Surgery, Jagiellonian University, Krakow, Poland
| | - A Porter
- Bankstown-Lidcombe Hospital, University of New South Wales, Sydney, Australia
| | - C Berney
- Bankstown-Lidcombe Hospital, University of New South Wales, Sydney, Australia
| | - H Niebuhr
- Hanse-Hernienzentrum Hamburg, Hamburg, Germany
| | - F Mayer
- Landeskrankenhaus Salzburg Uniklinikum, Salzburg, Austria
| | | | - D Lal
- National Hospital of Sri Lanka, Colombo, Sri Lanka
| | - P Klobusicky
- Helios St. Elisabeth Hospital, Bad Kissingen, Germany
| | | | - M Ates
- Faculty of Medicine, Department of General Surgery and Liver Transplantation Institute, Inonu University, Malatya, Turkey.,Faculty of Medicine, Department of Anatomy, Inonu University, Malatya, Turkey
| | - E Kinaci
- Faculty of Medicine, Department of General Surgery and Liver Transplantation Institute, Inonu University, Malatya, Turkey.,Department of General Surgery, Istanbul Training and Research Hospital, Istanbul, Turkey
| | - E Kose
- Faculty of Medicine, Department of Anatomy, Inonu University, Malatya, Turkey
| | - V Soyer
- Faculty of Medicine, Department of General Surgery and Liver Transplantation Institute, Inonu University, Malatya, Turkey
| | - B Sarici
- Faculty of Medicine, Department of General Surgery and Liver Transplantation Institute, Inonu University, Malatya, Turkey
| | - S Cuglan
- Faculty of Medicine, Department of Anatomy, Inonu University, Malatya, Turkey
| | - F Korkmaz
- Faculty of Medicine, Department of Anatomy, Inonu University, Malatya, Turkey
| | - A Dirican
- Faculty of Medicine, Department of General Surgery and Liver Transplantation Institute, Inonu University, Malatya, Turkey
| | | | - P J Jurado
- Hospital General Básico de Riotinto, Huelva, Spain
| | | | | | | | | | - M Giubileo
- Ospedale San Carlo Borromeo, Milano, Italy.
| | - L Federico
- Ospedale San Carlo Borromeo, Milano, Italy
| | | | - P Ventura
- Ospedale San Carlo Borromeo, Milano, Italy
| | | | | | | | | | - Y Feleshtynsky
- Optimization of Transabdominal Pre-Peritoneal Alloplasty of Inguinal Hernias, Kyiv, Ukraine
| | | | | | | | | | | | | | | | | | - A Ruiz Zafra
- Hospital Universitario Virgen Macarena, Sevilla, Spain
| | | | | | | | - J Brochado
- Hospital Servidor Publico Estadual, São Paulo, Brazil
| | - F Farah
- Hospital Servidor Publico Estadual, São Paulo, Brazil
| | - R G Nicastro
- Hospital Servidor Publico Estadual, São Paulo, Brazil
| | - G A Condi
- Hospital Servidor Publico Estadual, São Paulo, Brazil
| | - M De Marco
- Hospital Servidor Publico Estadual, São Paulo, Brazil
| | - R Samaan
- Hospital Servidor Publico Estadual, São Paulo, Brazil
| | - M C Radtke
- Hospital Servidor Publico Estadual, São Paulo, Brazil
| | - Z Ji
- Department of General Surgery, Zhongda Hospital, Southeast University, Nanjing, China
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Al-Asmi A, Poothrikovil RP R, Nandhagopal R, Lal D, Al Futaisi A, Jacob P, Koul R, Gujjar A. P465: Clinical and electrophysiological profile of Omani patients with idiopathic generalized epilepsy, experience of a tertiary center in Oman. Clin Neurophysiol 2014. [DOI: 10.1016/s1388-2457(14)50565-2] [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]
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Szigeti K, Trummer B, Lal D, Doody R, Yan L, Liu S, Ma C. Genome-Wide Scan for Copy Number Variation Association with Biomarker Quantitative Trait Loci in Aging. EUR J INFLAMM 2014. [DOI: 10.1177/1721727x1401200206] [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: 11/17/2022] Open
Abstract
Biomarkers are emerging as important tools in the detection and monitoring of various diseases. A major limitation and challenge to effectively utilize biomarker signals is the limited understanding of factors contributing to their variance. As genetic variation is a major contributor to phenotypic variation, exploring genetic contributions is of great importance. Copy number variants (CNVs) offer an alternative genomic framework to understand contributions to phenotypic variance. A copy-number variation genome-wide association study was performed using 116 serum inflammatory biomarkers as quantitative trait in elderly normal controls to test the hypothesis that CNVs contribute to the phenotypic heterogeneity of serum biomarkers. Three chromosomal regions were associated with four biomarkers in trans. Transforming growth factor alpha (TG-alpha) serum levels were associated with CNV dosage at chr11:5,788 kb, soluble levels of receptor for advanced glycation endproducts (sRAGE) was associated with CNV dosage at chr8:40,183 kb and both thrombospondin-1 and tissue inhibitor of metalloproteinase 1 (TIMP-1) were associated with CNV dosage at chr11:18,961 kb. The CNV at chr11:5,788 kb harbors 2 olfactory genes and the introns of Tripartite motif-containing (TRIM) gene cluster TRIM5&22 while the CNV at chr11:18,961 includes the Mas-related G-protein coupled receptor member X1. These trans associations may identify novel relationships in the relevant pathways and suggest that genetic variation can contribute to biomarker levels. The detected trans-association between MRGPRX1 and thrombospondin-1/TIMP-1 could implicate a novel pathway between pain/itching and inflammation. Cataloguing all genetic variants with an effect on biomarkers will serve as a tool to interpret epidemiological studies and establish causal relationships through Mendelian randomization.
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Affiliation(s)
- K. Szigeti
- Department of Neurology, University at Buffalo, SUNY, Buffalo, NY, USA
| | - B. Trummer
- Department of Neurology, University at Buffalo, SUNY, Buffalo, NY, USA
| | - D. Lal
- Department of Neurology, University at Buffalo, SUNY, Buffalo, NY, USA
| | - R.S. Doody
- Alzheimer's Disease and Memory Disorders Center, Department of Neurology, Baylor College of Medicine, Houston, TX, USA
| | - L. Yan
- Department of Bioinformatics, University at Buffalo, SUNY, Buffalo, NY, USA
| | - S. Liu
- Roswell Park Cancer Institute, Buffalo, NY, USA
| | - C. Ma
- Department of Bioinformatics, University at Buffalo, SUNY, Buffalo, NY, USA
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Hoxworth JM, Lal D, Fletcher GP, Patel AC, He M, Paden RG, Hara AK. Radiation dose reduction in paranasal sinus CT using model-based iterative reconstruction. AJNR Am J Neuroradiol 2014; 35:644-9. [PMID: 24113467 DOI: 10.3174/ajnr.a3749] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE CT performed with Veo model-based iterative reconstruction has shown the potential for radiation-dose reduction. This study sought to determine whether Veo could reduce noise and improve the image quality of low-dose sinus CT. MATERIALS AND METHODS Twenty patients consented to participate and underwent low- and standard-dose sinus CT on the same day. Standard-dose CT was created with filtered back-projection (120 kV[peak], 210 mA, 0.4-second rotation, and 0.531 pitch). For low-dose CT, mA was decreased to 20 (the remaining parameters were unchanged), and images were generated with filtered back-projection and Veo. Standard- and low-dose datasets were reconstructed by using bone and soft-tissue algorithms, while the low-dose Veo reconstruction only had a standard kernel. Two blinded neuroradiologists independently evaluated the image quality of multiple osseous and soft-tissue craniofacial structures. Image noise was measured by using multiple regions of interest. RESULTS Eight women and 12 men (mean age, 63.3 years) participated. Volume CT dose indices were 2.9 mGy (low dose) and 31.6 mGy (standard dose), and mean dose-length products were 37.4 mGy-cm (low dose) and 406.1 mGy-cm (standard dose). Of all the imaging series, low-dose Veo demonstrated the least noise (P < .001). Compared with filtered back-projection low-dose CT using soft-tissue and bone algorithms, Veo had the best soft-tissue image quality but the poorest bone image quality (P < .001). CONCLUSIONS Veo significantly reduces noise in low-dose sinus CT. Although this reduction improves soft-tissue evaluation, thin bone becomes less distinct.
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Affiliation(s)
- J M Hoxworth
- From the Departments of Radiology (J.M.H., G.P.F., A.C.P., R.G.P, A.K.H.)
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Bhattacharya SK, Goswami JN, Lal D. Semiempirical rates of formation of cosmic ray tracks in spherical objects exposed in space: Preatmospheric and postatmospheric depth profiles. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/ja078i034p08356] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Howard B, Patel N, Lal D, Hayden R, Lyons M. A Novel Entity: Primary Sellar Natural Killer/T-Cell Lymphoma. Skull Base Surg 2012. [DOI: 10.1055/s-0032-1314384] [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: 10/28/2022]
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Patel N, Lal D, Lyons M, Hayden R. Orbital Apex Tumor Resection via Extended Endoscopic Endonasal Approach. Skull Base Surg 2012. [DOI: 10.1055/s-0032-1314374] [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: 10/28/2022]
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Cain R, Patel N, Lal D, Hayden R, Lyons M. Abducens Nerve Palsy Following Lumbar Subarachnoid Drain Placement: A Case Report and Review of the Literature. Skull Base Surg 2012. [DOI: 10.1055/s-0032-1314363] [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: 10/28/2022]
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Smonskey M, Starostik P, Deeb G, Demock K, Vargas R, Lal D, Sait SN, Wetzler M, Wang ES. Association of IDH1 mutations in normal karyotype acute myeloid leukemia samples with higher HIF-1α and VEGF-A expression. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.6530] [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: 11/20/2022] Open
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Sikka P, Lal D. Studies on Vitamin Mineral Interactions in Relation to Passive Transfer of Immunoglobulins in Buffalo Calves. Asian Australas J Anim Sci 2006. [DOI: 10.5713/ajas.2006.825] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Lal D, Griller D, Husband S, Ingold KU. Kinetic applications of electron paramagnetic resonance spectroscopy. XVI. Cyclization of the 5-hexenyl radical. J Am Chem Soc 2002. [DOI: 10.1021/ja00827a018] [Citation(s) in RCA: 72] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Lal D, Jull AJT, Donahue DJ, Burr GS, Deck B, Jouzel J, Steig E. Record of cosmogenic in situ produced14C in Vostok and Taylor Dome ice samples: Implications for strong role of wind ventilation processes. ACTA ACUST UNITED AC 2001. [DOI: 10.1029/2001jd900086] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Lal D, Jull AJT, Burr GS, Donahue DJ. Measurements of in situ14C concentrations in Greenland Ice Sheet Project 2 ice covering a 17-kyr time span: Implications to ice flow dynamics. ACTA ACUST UNITED AC 1997. [DOI: 10.1029/96jc02224] [Citation(s) in RCA: 18] [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: 11/09/2022]
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Lal D, Mahale SD, Nandedkar TD, Iyer KS. Identification of bioneutralization epitopes of human follicle stimulating hormone in the regions 31-52 and 66-75 of its beta-subunit. J Reprod Immunol 1997; 33:1-14. [PMID: 9185072 DOI: 10.1016/s0165-0378(97)01016-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The crucial role played by follicle stimulating hormone (FSH) in regulating both male and female reproduction and the possibilities of developing contraceptive methods for males by blocking the function of the hormone, makes it important to delineate the hormone-specific bioneutralization epitopes of human follicle stimulating hormone (hFSH) on its beta-subunit. Predictive methods were used to identify the potential surface-oriented regions of hFSH-beta. Peptides corresponding to these regions, i.e. 31-52, 66-75 and 86-95 hFSH-beta, were synthesized, anti-peptide antibodies were elicited in rabbits and the properties of these antisera to bind hFSH and neutralize its biological activity were assessed. Anti-31-52 hFSH-beta antisera bound hFSH specifically, whereas anti-66-75 and anti-86-95 hFSH-beta antisera did not show any detectable binding, proving the region 31-52 hFSH-beta to be a specific antigenic determinant of hFSH. The bioneutralizing abilities of the anti-peptide antibodies were assessed by measuring the hFSH-induced progesterone secretion by rat granulosa cells in vitro. Antibodies to 31-52 and 66-75 hFSH-beta neutralized the bioactivity of hFSH, but anti-86-95 hFSH-beta antibodies did not. Furthermore, the three linear peptides and two disulphide looped peptides of 31-52 hFSH-beta and 86-95 hFSH-beta were also subjected to the in-vitro granulosa cell assay. The linear peptides 31-52 hFSH-beta and 66-75 hFSH-beta and the cyclic 31-52 hFSH-beta disulphide loop peptide significantly inhibited the hFSH-induced progesterone secretion by rat granulosa cells, but the linear 86-95 hFSH-beta peptide and the corresponding cyclic disulphide loop peptide did not. The results clearly show that the regions 31-52 and 66-75 of hFSH-beta harbor bioneutralization epitopes of the hormone. The studies also indicate that cyclization of the linear 31-52 hFSH-beta peptide greatly enhances receptor recognition and that the region 66-75 hFSH-beta may also be involved in hormone-receptor interaction.
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Affiliation(s)
- D Lal
- Institute for Research in Reproduction, Indian Council of Medical Research, Bombay, India
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Lal D, Mahale SD, Iyer KS. Studies on the delineation of the hormone-specific antigenic determinants of human follicle-stimulating hormone. Pept Res 1996; 9:195-202. [PMID: 8914167] [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] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Human follicle-stimulating hormone (hFSH) is a key hormone regulating both male and female reproduction. The present study attempts to delineate the hFSH-specific antigenic determinants on its beta-subunit. Predictive methods were used to identify the potential surface-oriented regions of hFSH-beta. Peptides corresponding to these regions, namely, 31-52, 66-75 and 86-95 hFSH-beta, were synthesized and conjugated to diphtheria toxoid. Antipeptide antibodies, elicited in rabbits by immunization with the conjugates, were screened for their ability to bind to hFSH-beta and hFSH. Anti-31-52 hFSH-beta antisera bound to both hFSH-beta and hFSH, whereas anti-66-75 and anti-86-95 hFSH-beta antisera did not show any detectable binding. Furthermore, screening of anti-hFSH antisera showed significant binding only to 31-52 hFSH-beta. These results identify the region 31-52 hFSH-beta as a hormone-specific antigenic determinant of hFSH.
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Affiliation(s)
- D Lal
- Institute for Research in Reproduction (I.C.M.R.), Parel, Bombay, India
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Lal D. Cosmogenic and nucleogenic isotopic changes in Mars: their rates and implications to the evolutionary history of Martian surface. Geochim Cosmochim Acta 1993; 57:4627-4637. [PMID: 11539580 DOI: 10.1016/0016-7037(93)90188-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
We present calculations of rates of production of several nuclides in the Martian atmosphere and in the regolith due to nuclear interactions of cosmic ray and radiogenic particles and consider their implications to the evolutionary history of Mars. Nuclides selected are those which, considering their chemical properties, may be useful as tracers for delineating the past histories of the Martian atmosphere and regolith. Calculations are presented for different assumed atmospheric pressures. The regolith production rates for the present thin Martian atmosphere (approximately 20 g cm-2) are expected to be fairly robust because they are based primarily on observed cosmogenic effects in the Moon, for which semiempirical estimates of nuclide production rates have been provided earlier by Reedy (1981). Uncertainties which arise in the calculations of nuclide production rates for an earlier hypothetical Martian atmosphere of approximately 300-500 g cm-2 thickness are discussed. Compared to cosmic ray production rates, the nucleogenic production rates are smaller by several orders of magnitude. However, the nucleogenic production extends to much deeper levels, whereas the cosmogenic production is essentially confined to the top 750-1000 g cm-2 depth. Important examples of nucleogenic production are discussed. Isotopes of neon and argon appear to be very promising for delineating relative magnitudes of a number of planetary processes related to the temporal changes in the thickness of the atmosphere, as well as their release from the regolith. However, quantification of the processes would require higher-precision isotopic data for the atmosphere and also direct measurements of isotopic ratios in the Martian regolith, along with supplementary information on changes in the isotopic compositions of hydrogen, carbon, and nitrogen, which are affected by a variety of mechanisms of escape of gases from the atmosphere. Cosmogenic effects are minimal in these cases. We show that although we can at present draw but limited inferences, the planet Mars presents a unique opportunity to use cosmogenic nuclides as tools to delineate the evolutionary history of the planet as a whole, as well as its regolith and the atmosphere. This arises because of two factors: minimal degassing of the planet, and a fairly intense chemical weathering history of the upper surface. Consequently, an appreciable fraction of some of the isotopes of volatile elements is contributed by nuclear reactions.
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Affiliation(s)
- D Lal
- Scripps Institution of Oceanography, Geological Research Division, La Jolla, CA 92093-0220, USA
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Kapral FA, Smith S, Lal D. The esterification of fatty acids by Staphylococcus aureus fatty acid modifying enzyme (FAME) and its inhibition by glycerides. J Med Microbiol 1992; 37:235-7. [PMID: 1404320 DOI: 10.1099/00222615-37-4-235] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Fifty-five randomly selected Staphylococcus aureus strains were examined for fatty acid modifying enzyme (FAME) production. Of these, 20.4% did not elaborate the enzyme. Amongst the remaining strains, the lowest level produced in culture was 0.1 unit/10(9) cocci and the maximum was 2.01 U/10(9) cocci; the median level was 0.4 U/10(9) cocci. In a series of straight-chain saturated fatty acids with 11-24 carbons, all could be esterified by FAME. However, those with 15-19 carbons were generally better substrates than the others. For a particular chain length, the unsaturated forms were better substrates than the saturated form. Triglycerides with unsaturated fatty acid side chains were potent inhibitors of FAME. Diglycerides were almost as active as triglycerides, but monoglycerides were much less inhibitory. FAME was purified by gel filtration followed by hydrophobic interaction chromatography on hexyl agarose. FAME and lipase may have a role in determining the survival of S. aureus in lesions.
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Affiliation(s)
- F A Kapral
- Department of Medical Microbiology and Immunology, Ohio State University, Columbus 43210
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Lal D. The Solar System: Records from
t
≥ 0:
Meteorites and the Early Solar System
. John F. Kerridge and Mildred Shapley Matthews, Eds. University of Arizona Press, Tucson, 1988. xviii, 1269 pp., illus. $55. Space Science Series. Science 1989; 244:849-50. [PMID: 17802258 DOI: 10.1126/science.244.4906.849] [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: 11/02/2022]
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Marley JE, Lal D, Snaith J. Does communication between investigators improve the conduct of the multicentre study? Br J Clin Pract 1989; 43:158-60. [PMID: 2590632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Meetings between investigators participating in multicentre clinical trials are rarely held. Evidence is presented from a computerised system of multicentre trial management that there are advantages to both physicians and companies in improving communication and holding regular meetings.
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Nishiizumi K, Winterer EL, Kohl CP, Klein J, Middleton R, Lal D, Arnold JR. Cosmic ray production rates of10Be and26Al in quartz from glacially polished rocks. ACTA ACUST UNITED AC 1989. [DOI: 10.1029/jb094ib12p17907] [Citation(s) in RCA: 408] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Abstract
Survival and mutagenesis caused by 5-azacytidine was studied in Escherichia coli. Survival was partially lexA- and recA-dependent and was decreased by the presence of a DNA (cytosine-5)methyltransferase. The dcm, MspI, and EcoRII methyltransferase genes all decreased survival. There was no direct relationship between amount of methylase enzyme present and cell survival, but only plasmids containing a methylase gene sensitized cells to 5-azacytidine. Survival was not affected by uvrA, uvrB or umuCD mutations. Induction of sulA::lacZ fusions by 5-azacytidine was inhibited in strains containing elevated levels of DNA methylase. Cells resistant to 5-azacytidine when they contained a plasmid specifying the EcoRII methylase were sensitive if the plasmid specified the complete EcoRII restriction-modification system. The mechanism of cell death in these situations is therefore different. Mutation of the rpoB gene by 5-azacytidine was studied. The mutation rate was decreased by the presence of recA and lexA mutations. Mutation in umuCD had little effect on the mutation rate. The recA430 mutation, which does not support SOS-dependent mutagenesis induced by UV light, does support 5-azacytidine induced mutagenesis. The presence of DNA (cytosine-5)methyltransferase had no effect on the mutation rate caused by 5-azacytidine treatment. The mutagenic and lethal lesions caused by 5-azacytidine in the absence of methylase therefore differ from the lethal lesions that occur in the presence of methylase. The former could be due to the opening of the 5-azacytosine ring in DNA. Cell death in the presence of methylase could be due to tight binding of methylase to azacytosine containing DNA as well as inhibition of induction of the SOS response.
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Affiliation(s)
- D Lal
- Department of Pharmacology, State University of New York-Health Science Center, Brooklyn 11203
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Goswami JN, McGuire RE, Reedy RC, Lal D, Jha R. Solar flare protons and alpha particles during the last three solar cycles. ACTA ACUST UNITED AC 1988. [DOI: 10.1029/ja093ia07p07195] [Citation(s) in RCA: 71] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Lal D, Nishiizumi K, Arnold JR. In situ cosmogenic3H,14C, and10Be for determining the net accumulation and ablation rates of ice sheets. ACTA ACUST UNITED AC 1987. [DOI: 10.1029/jb092ib06p04947] [Citation(s) in RCA: 45] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Abstract
The energetic nuclei in cosmic rays interact with meteoroids, the moon, planets, and other solar system matter. The nuclides and heavy nuclei tracks produced by the cosmic-ray particles in these targets contain a wealth of information about the history of the objects and temporal and spatial variations in the particle fluxes. Most lunar samples and meny meteorites have complex histories of cosmicray exposure from erosion, gardening, fragmentation, orbital changes, and other processes. There appear to be variations in the past fluxes of solar particles, and possibly also galactic cosmic rays, on time scales of 10(4) to 10(7) years.
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Bhandari N, Lal D, Rajan R, Arnold J, Marti K, Moore C. Atmospheric ablation in meteorites: A study based on cosmic ray tracks and neon isotopes. ACTA ACUST UNITED AC 1980. [DOI: 10.1016/0191-278x(80)90037-2] [Citation(s) in RCA: 77] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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