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Mehta A, Casey M, Aylward A, Bush M, Shams R, Platts-Mills T. 166 Predicting Food Insecurity among Older Adults in the Emergency Department. Ann Emerg Med 2021. [DOI: 10.1016/j.annemergmed.2021.09.177] [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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Platts-Mills T, Morris A, Engelberg J, Schmitthenner B, Aylward A, Shams R, Roche H. 301 Identifying Unmet Needs for Social Services Among Older Emergency Department Patients. Ann Emerg Med 2019. [DOI: 10.1016/j.annemergmed.2019.08.260] [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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Gupta M, Wilson J, Schuyler A, Workman L, Erwin E, Platts-Mills T. P335 Gluten-specific IGG4 is elevated in children with eosinophilic esophagitis compared to an unselected community cohort. Ann Allergy Asthma Immunol 2017. [DOI: 10.1016/j.anai.2017.08.226] [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: 10/18/2022]
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Wilson J, Schuyler A, Workman L, Perzanowski M, James H, Commins S, Heymann P, Platts-Mills T. OR074 Comparison of galactose-a-1,3-galactose specific IgE responses in children from rural Kenya and central Virginia. Ann Allergy Asthma Immunol 2017. [DOI: 10.1016/j.anai.2017.08.056] [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: 10/18/2022]
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Homann A, Minge S, Röckendorf N, Kromminga A, Frey A, Platts-Mills T, Jappe U. Adverse Reactions against Biologicals – Identification and Characterization of Immunogenic Epitopes and Potential Biomarkers. Pneumologie 2016. [DOI: 10.1055/s-0036-1584604] [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: 10/19/2022]
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Matricardi PM, Kleine-Tebbe J, Hoffmann HJ, Valenta R, Hilger C, Hofmaier S, Aalberse RC, Agache I, Asero R, Ballmer-Weber B, Barber D, Beyer K, Biedermann T, Bilò MB, Blank S, Bohle B, Bosshard PP, Breiteneder H, Brough HA, Caraballo L, Caubet JC, Crameri R, Davies JM, Douladiris N, Ebisawa M, EIgenmann PA, Fernandez-Rivas M, Ferreira F, Gadermaier G, Glatz M, Hamilton RG, Hawranek T, Hellings P, Hoffmann-Sommergruber K, Jakob T, Jappe U, Jutel M, Kamath SD, Knol EF, Korosec P, Kuehn A, Lack G, Lopata AL, Mäkelä M, Morisset M, Niederberger V, Nowak-Węgrzyn AH, Papadopoulos NG, Pastorello EA, Pauli G, Platts-Mills T, Posa D, Poulsen LK, Raulf M, Sastre J, Scala E, Schmid JM, Schmid-Grendelmeier P, van Hage M, van Ree R, Vieths S, Weber R, Wickman M, Muraro A, Ollert M. EAACI Molecular Allergology User's Guide. Pediatr Allergy Immunol 2016; 27 Suppl 23:1-250. [PMID: 27288833 DOI: 10.1111/pai.12563] [Citation(s) in RCA: 500] [Impact Index Per Article: 62.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The availability of allergen molecules ('components') from several protein families has advanced our understanding of immunoglobulin E (IgE)-mediated responses and enabled 'component-resolved diagnosis' (CRD). The European Academy of Allergy and Clinical Immunology (EAACI) Molecular Allergology User's Guide (MAUG) provides comprehensive information on important allergens and describes the diagnostic options using CRD. Part A of the EAACI MAUG introduces allergen molecules, families, composition of extracts, databases, and diagnostic IgE, skin, and basophil tests. Singleplex and multiplex IgE assays with components improve both sensitivity for low-abundance allergens and analytical specificity; IgE to individual allergens can yield information on clinical risks and distinguish cross-reactivity from true primary sensitization. Part B discusses the clinical and molecular aspects of IgE-mediated allergies to foods (including nuts, seeds, legumes, fruits, vegetables, cereal grains, milk, egg, meat, fish, and shellfish), inhalants (pollen, mold spores, mites, and animal dander), and Hymenoptera venom. Diagnostic algorithms and short case histories provide useful information for the clinical workup of allergic individuals targeted for CRD. Part C covers protein families containing ubiquitous, highly cross-reactive panallergens from plant (lipid transfer proteins, polcalcins, PR-10, profilins) and animal sources (lipocalins, parvalbumins, serum albumins, tropomyosins) and explains their diagnostic and clinical utility. Part D lists 100 important allergen molecules. In conclusion, IgE-mediated reactions and allergic diseases, including allergic rhinoconjunctivitis, asthma, food reactions, and insect sting reactions, are discussed from a novel molecular perspective. The EAACI MAUG documents the rapid progression of molecular allergology from basic research to its integration into clinical practice, a quantum leap in the management of allergic patients.
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Affiliation(s)
- P M Matricardi
- Paediatric Pneumology and Immunology, Charitè Medical University, Berlin, Germany
| | - J Kleine-Tebbe
- Allergy & Asthma Center Westend, Outpatient Clinic Ackermann, Hanf, & Kleine-Tebbe, Berlin, Germany
| | - H J Hoffmann
- Department of Respiratory Diseases and Allergy, Institute of Clinical Medicine, Aarhus University and Aarhus University Hospital, Aarhus, Denmark
| | - R Valenta
- Division of Immunopathology, Department of Pathophysiology and Allergy Research, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - C Hilger
- Department of Infection & Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
| | - S Hofmaier
- Paediatric Pneumology and Immunology, Charitè Medical University, Berlin, Germany
| | - R C Aalberse
- Sanquin Research, Department of Immunopathology, Amsterdam, The Netherlands
- Landsteiner Laboratory, Academic Medical Centre, University of Amsterdam, Amsterdam, The Netherlands
| | - I Agache
- Department of Allergy and Clinical Immunology, Faculty of Medicine, Transylvania University of Brasov, Brasov, Romania
| | - R Asero
- Ambulatorio di Allergologia, Clinica San Carlo, Paderno Dugnano, Italy
| | - B Ballmer-Weber
- Allergy Unit, Department of Dermatology, University Hospital Zürich, Zürich, Switzerland
| | - D Barber
- IMMA-School of Medicine, University CEU San Pablo, Madrid, Spain
| | - K Beyer
- Paediatric Pneumology and Immunology, Charitè Medical University, Berlin, Germany
| | - T Biedermann
- Department of Dermatology and Allergology, Technical University Munich, Munich, Germany
| | - M B Bilò
- Allergy Unit, Department of Internal Medicine, University Hospital Ospedali Riuniti di Ancona, Ancona, Italy
| | - S Blank
- Center of Allergy and Environment (ZAUM), Helmholtz Center Munich, Technical University of Munich, Munich, Germany
| | - B Bohle
- Division of Experimental Allergology, Department of Pathophysiology and Allergy Research, Center of Pathophysiology, Infectiology & Immunology, Medical University of Vienna, Vienna, Austria
| | - P P Bosshard
- Allergy Unit, Department of Dermatology, University Hospital Zürich, Zürich, Switzerland
| | - H Breiteneder
- Department of Pathophysiology and Allergy Research, Medical University of Vienna, Vienna, Austria
| | - H A Brough
- Paediatric Allergy, Department of Asthma, Allergy and Respiratory Science, King's College London, Guys' Hospital, London, UK
| | - L Caraballo
- Institute for Immunological Research, The University of Cartagena, Cartagena de Indias, Colombia
| | - J C Caubet
- Pediatric Allergy Unit, Department of Child and Adolescent, University Hospitals of Geneva, Geneva, Switzerland
| | - R Crameri
- Swiss Institute of Allergy and Asthma Research, University of Zürich, Davos, Switzerland
| | - J M Davies
- School of Biomedical Sciences, Institute of Biomedical Innovation, Queensland University of Technology, Brisbane, Qld, Australia
| | - N Douladiris
- Allergy Unit, 2nd Paediatric Clinic, National & Kapodistrian University, Athens, Greece
| | - M Ebisawa
- Department of Allergy, Clinical Research Center for Allergology and Rheumatology, Sagamihara National Hospital, Kanagawa, Japan
| | - P A EIgenmann
- Pediatric Allergy Unit, Department of Child and Adolescent, University Hospitals of Geneva, Geneva, Switzerland
| | - M Fernandez-Rivas
- Allergy Department, Hospital Clinico San Carlos IdISSC, Madrid, Spain
| | - F Ferreira
- Division of Allergy and Immunology, Department of Molecular Biology, University of Salzburg, Salzburg, Austria
| | - G Gadermaier
- Division of Allergy and Immunology, Department of Molecular Biology, University of Salzburg, Salzburg, Austria
| | - M Glatz
- Allergy Unit, Department of Dermatology, University Hospital Zürich, Zürich, Switzerland
- Christine Kühne Center for Allergy Research and Education CK-CARE, Davos, Switzerland
| | - R G Hamilton
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - T Hawranek
- Department of Dermatology, Paracelsus Private Medical University, Salzburg, Austria
| | - P Hellings
- Department of Otorhinolaryngology, Academic Medical Center (AMC), Amsterdam, The Netherlands
- Department of Otorhinolaryngology, University Hospitals Leuven, Leuven, Belgium
| | - K Hoffmann-Sommergruber
- Department of Pathophysiology and Allergy Research, Medical University of Vienna, Vienna, Austria
| | - T Jakob
- Department of Dermatology and Allergology, University Medical Center Giessen and Marburg, Justus Liebig University Giessen, Giessen, Germany
| | - U Jappe
- Division of Clinical and Molecular Allergology, Research Centre Borstel, Airway Research Centre North (ARCN), Member of the German Centre for Lung Research (DZL), Borstel, Germany
- Interdisciplinary Allergy Division, Department of Pneumology, University of Lübeck, Lübeck, Germany
| | - M Jutel
- Department of Clinical Immunology, 'ALL-MED' Medical Research Institute, Wrocław Medical University, Wrocław, Poland
| | - S D Kamath
- Molecular Allergy Research Laboratory, Centre for Biodiscovery and Molecular Development of Therapeutics, Australian Institute of Tropical Health and Medicine, James Cook University, Townsville City, Qld, Australia
| | - E F Knol
- Departments of Immunology and Dermatology/Allergology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - P Korosec
- University Clinic of Respiratory and Allergic Diseases, Golnik, Slovenia
| | - A Kuehn
- Department of Infection & Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
| | - G Lack
- King's College London, MRC & Asthma UK Centre in Allergic Mechanisms of Asthma, London, UK
- Division of Asthma, Allergy and Lung Biology, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - A L Lopata
- Department of Clinical Immunology, 'ALL-MED' Medical Research Institute, Wrocław Medical University, Wrocław, Poland
| | - M Mäkelä
- Skin and Allergy Hospital, Helsinki University Central Hospital and University of Helsinki, Helsinki, Finland
| | - M Morisset
- National Service of Immuno-Allergology, Centre Hospitalier Luxembourg (CHL), Luxembourg, UK
| | - V Niederberger
- Department of Otorhinolaryngology, Medical University of Vienna, Vienna, Austria
| | - A H Nowak-Węgrzyn
- Pediatric Allergy and Immunology, Jaffe Food Allergy Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - N G Papadopoulos
- Centre for Paediatrics and Child Health, Institute of Human Development, University of Manchester, Manchester, UK
| | - E A Pastorello
- Unit of Allergology and Immunology, Niguarda Ca' Granda Hospital, Milan, Italy
| | - G Pauli
- Service de Pneumologie, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - T Platts-Mills
- Department of Microbiology & Immunology, University of Virginia School of Medicine, Charlottesville, VA, USA
| | - D Posa
- Paediatric Pneumology and Immunology, Charitè Medical University, Berlin, Germany
| | - L K Poulsen
- Allergy Clinic, Copenhagen University Hospital, Copenhagen, Denmark
| | - M Raulf
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Ruhr-University Bochum (IPA), Bochum, Germany
| | - J Sastre
- Allergy Division, Fundación Jimenez Díaz, Madrid, Spain
| | - E Scala
- Experimental Allergy Unit, IDI-IRCCS, Rome, Italy
| | - J M Schmid
- Department of Respiratory Diseases and Allergy, Institute of Clinical Medicine, Aarhus University and Aarhus University Hospital, Aarhus, Denmark
| | - P Schmid-Grendelmeier
- Allergy Unit, Department of Dermatology, University Hospital Zürich, Zürich, Switzerland
- Christine Kühne Center for Allergy Research and Education CK-CARE, Davos, Switzerland
| | - M van Hage
- Department of Medicine Solna, Clinical Immunology and Allergy Unit, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - R van Ree
- Departments of Experimental Immunology and of Otorhinolaryngology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - S Vieths
- Department of Allergology, Paul-Ehrlich-Institut, Langen, Germany
| | - R Weber
- School of Medicine, University of Colorado, Denver, CO, USA
- Department of Medicine, National Jewish Health Service, Denver, CO, USA
| | - M Wickman
- Sachs' Children's Hospital, Karolinska Institutet, Stockholm, Sweden
| | - A Muraro
- The Referral Centre for Food Allergy Diagnosis and Treatment Veneto Region, Department of Mother and Child Health, University of Padua, Padua, Italy
| | - M Ollert
- Department of Infection & Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
- Department of Dermatology and Allergy Center, Odense Research Center for Anaphylaxis, University of Southern Denmark, Odense, Denmark
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Agrawal R, Wisniewski J, Yu MD, Kennedy JL, Platts-Mills T, Heymann PW, Woodfolk JA. Infection with human rhinovirus 16 promotes enhanced IgE responsiveness in basophils of atopic asthmatics. Clin Exp Allergy 2015; 44:1266-73. [PMID: 25113532 DOI: 10.1111/cea.12390] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2014] [Revised: 04/18/2014] [Accepted: 05/21/2014] [Indexed: 01/09/2023]
Abstract
BACKGROUND Rhinovirus and IgE act in concert to promote asthma exacerbations. While basophils are the principal cell type in the blood that is activated by IgE, their role in virus-induced asthma episodes remains elusive. OBJECTIVE To monitor IgE responsiveness in circulating basophils of rhinovirus-infected atopic asthmatics during acute infection and convalescence. METHODS The capacity for basophils to respond to IgE was assessed by testing the effects of allergen, or cross-linking anti-FcεRI and anti-IgE antibodies, on surface TSLP receptor in 24-hour PBMC cultures. Activation profiles of basophils from atopic asthmatics challenged intranasally with human rhinovirus 16 were monitored directly ex vivo or else in 24-hour cultures, at baseline (day 0), and then at days 4 and 21 post-challenge. RESULTS Basophils in atopic asthmatics, but not in non-atopic controls, upregulated TSLP receptor upon IgE receptor ligation. The magnitude of this response was correlated with the proportion of serum total IgE that was allergen-specific (r = 0.615, P < 0.05). Following rhinovirus infection, all subjects developed nasal symptoms that peaked 3-5 days after viral challenge. Basophils displayed maximal IgE responsiveness 3 weeks post-challenge as judged by TSLP receptor levels in 24-hour cultures. No significant change in total IgE or specific IgE antibodies was detected during rhinovirus infection. By contrast, levels of IgE receptor-associated spleen tyrosine kinase, Syk, were increased on day 4 (P < 0.05), and elevated levels were also detected three weeks post-challenge. CONCLUSIONS AND CLINICAL RELEVANCE Circulating basophils display increased IgE responsiveness 3 weeks after rhinovirus infection in atopic asthmatics. This observation, coupled with increased expression of Syk, implicates basophils in promoting, or else prolonging, rhinovirus-induced inflammation in atopic asthmatics.
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Affiliation(s)
- R Agrawal
- Department of Medicine, University of Virginia Health System, Charlottesville, VA, USA
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Shenvi C, Isenberg E, Pereira G, Cairns C, Platts-Mills T. 216 Prevalence and Identification of Hazardous Alcohol Use Among Older Adults Presenting to the Emergency Department. Ann Emerg Med 2014. [DOI: 10.1016/j.annemergmed.2014.07.243] [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: 10/24/2022]
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Ring J, Akdis C, Lauener R, Schäppi G, Traidl-Hoffmann C, Akdis M, Ammann W, Behrendt H, Bieber T, Biedermann T, Bienenstock J, Blaser K, Braun-Fahrländer C, Brockow K, Buters J, Crameri R, Darsow U, Denburg JA, Eyerich K, Frei R, Galli SJ, Gutermuth J, Holt P, Koren H, Leung D, Müller U, Muraro A, Ollert M, O'Mahony L, Pawankar R, Platts-Mills T, Rhyner C, Rosenwasser LJ, Schmid-Grendelmeier P, Schmidt-Weber CB, Schmutz W, Simon D, Simon HU, Sofiev M, van Hage M, van Ree R. Global Allergy Forum and Second Davos Declaration 2013 Allergy: Barriers to cure--challenges and actions to be taken. Allergy 2014; 69:978-82. [PMID: 25041525 DOI: 10.1111/all.12406] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Ring J, Akdis C, Behrendt H, Lauener RP, Schäppi G, Akdis M, Ammann W, de Beaumont O, Bieber T, Bienenstock J, Blaser K, Bochner B, Bousquet J, Crameri R, Custovic A, Czerkinsky C, Darsow U, Denburg J, Drazen J, de Villiers EM, Fire A, Galli S, Haahtela T, zur Hausen H, Hildemann S, Holgate S, Holt P, Jakob T, Jung A, Kemeny M, Koren H, Leung D, Lockey R, Marone G, Mempel M, Menné B, Menz G, Mueller U, von Mutius E, Ollert M, O'Mahony L, Pawankar R, Renz H, Platts-Mills T, Roduit C, Schmidt-Weber C, Traidl-Hoffmann C, Wahn U, Rietschel E. Davos declaration: allergy as a global problem. Allergy 2012; 67:141-3. [PMID: 22235793 DOI: 10.1111/j.1398-9995.2011.02770.x] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- J Ring
- Department Dermatology and Allergy, Christine Kühne-Center of Allergy Research and Education (CK-CARE), Klinikumrechts der Isar, Technische Universitaet Muenchen, Munich, Germany
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Stevens W, Addo-Yobo E, Roper J, Woodcock A, James H, Platts-Mills T, Custovic A. Differences in both prevalence and titre of specific immunoglobulin E among children with asthma in affluent and poor communities within a large town in Ghana. Clin Exp Allergy 2011; 41:1587-94. [PMID: 21810123 PMCID: PMC3505371 DOI: 10.1111/j.1365-2222.2011.03832.x] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
BACKGROUND Reports from several African countries have noted an increasing prevalence of asthma in areas of extensive urbanization. OBJECTIVE To investigate the relevance of allergen-specific sensitization and body mass index (BMI) to asthma/wheezing and exercise-induced bronchospasm (EIB) among children from affluent and poorer communities within a large town in Ghana. METHODS Children with physician-diagnosed asthma and/or current wheezing aged 9-16 years (n=99; cases) from three schools with differing socio-economic backgrounds [urban affluent (UA), urban poor (UP) or suburban/rural (SR)] were recruited from a cross-sectional study (n=1848) in Kumasi, Ghana, and matched according to age, sex and area of residence with non-asthmatic/non-wheezy controls. We assayed sera for IgE antibodies to mite, cat, dog, cockroach, Ascaris and galactose-α-1,3-galactose. RESULTS Children from the UA school had the lowest total serum IgE. However, cases from the UA school had a higher prevalence and mean titre of sIgE to mite (71.4%, 21.2 IU/mL) when compared with controls (14.3%, 0.8 IU/mL) or cases from UP (30%, 0.8 IU/mL) and SR community (47.8%, 1.6 IU/mL). While similar findings were observed with EIB in the whole population, among cases there was no difference in IgE antibody prevalence or titre between children with or without EIB. BMI was higher among UA children with and without asthma; in UP and SR communities, children with EIB (n=14) had a significantly higher BMI compared with children with asthma/wheezing without EIB (n=38) (18.2 vs. 16.4, respectively, P<0.01). CONCLUSIONS AND CLINICAL RELEVANCE In the relatively affluent school, asthma/wheezing and EIB were associated with high titre IgE antibodies to mite, decreased total IgE, and increased BMI. This contrasted with children in the urban poor school and suggests that changes relevant to a Western model of childhood asthma can occur within a short geographical distance within a large city in Africa.
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Affiliation(s)
- W Stevens
- University of Virginia Asthma and Allergic Diseases Center, Charlottesville, VA, USA
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Duska LR, Henretta MS, Hobbs M, Platts-Mills T, Fracasso PM. Hypersensitivity reactions to cetuximab. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.e13054] [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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Platts-Mills T, Brown L, Bortsov A, Edwards L, McLean S. Oligoanalgesia in older adults presenting to US emergency departments after motor vehicle collision. The Journal of Pain 2011. [DOI: 10.1016/j.jpain.2011.02.100] [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: 10/18/2022]
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Flebbe-Rehwaldt L, Wells H, Roberts S, Walters P, Ling M, Brockus C, Halsey J, James H, Commins S, Platts-Mills T. An Immunoassay to Measure IgE to Galactose alpha 1,3 Galactose Associated with Red Meat Allergies. J Allergy Clin Immunol 2011. [DOI: 10.1016/j.jaci.2010.12.737] [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: 11/30/2022]
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Cooper P, Stevens W, James H, Mori M, Vaca M, Chico M, Platts-Mills T. Sensitization to Mite, Ascaris, and Galactose-α-1,3-Galactose in Relation to Wheezing Among Children in Ecuador. J Allergy Clin Immunol 2010. [DOI: 10.1016/j.jaci.2009.12.105] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Stevens W, Roper J, James H, Addo-Yobo E, Custovic A, Platts-Mills T. Sensitization to Mite and the Nematode Ascaris Among Children in an Area of Ghana with Increased Asthma. J Allergy Clin Immunol 2010. [DOI: 10.1016/j.jaci.2009.12.047] [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: 12/01/2022]
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Commins S, James H, Tran N, Kelly E, Mullins R, Lieberman P, Platts-Mills T. Testing for IgE Antibody to the Carbohydrate galactose-α-1,3-galactose (alpha-gal) in Patients with Recurrent, Idiopathic Anaphylaxis: How Many Cases Are We Missing? J Allergy Clin Immunol 2010. [DOI: 10.1016/j.jaci.2009.12.470] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Murphy D, Soto-Quiros M, Avila L, Hunt J, Platts-Mills T, Carper H, Odio S, O'Rourke A, Davis M, Heymann P. The Atopic Status of Children Treated for Wheezing in Costa Rica: The Importance of Sensitization to Dust Mite. J Allergy Clin Immunol 2010. [DOI: 10.1016/j.jaci.2009.12.529] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Kelly L, Ronmark E, Roper J, James H, Lundback B, Platts-Mills T. IgE And IgG Antibodies To Cat Allergens In Relation To Asthma Severity Among 963 Teenagers Living In Northern Sweden. J Allergy Clin Immunol 2010. [DOI: 10.1016/j.jaci.2009.12.736] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Stallings A, McLaughlin A, Murphy D, Carper H, Platts-Mills T, Heymann P. A Surveillance Study of Natural Rhinovirus Colds in Young Adults with Mild Asthma. J Allergy Clin Immunol 2009. [DOI: 10.1016/j.jaci.2008.12.184] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Campagne D, Platts-Mills T, Hendey G, Chinnock B, Snowden B. 229: Glidescope® Videolaryngoscopy versus Direct Laryngoscopy for Emergency Department Intubations. Ann Emerg Med 2008. [DOI: 10.1016/j.annemergmed.2008.06.247] [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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Bacharier LB, Boner A, Carlsen KH, Eigenmann PA, Frischer T, Götz M, Helms PJ, Hunt J, Liu A, Papadopoulos N, Platts-Mills T, Pohunek P, Simons FER, Valovirta E, Wahn U, Wildhaber J. Diagnosis and treatment of asthma in childhood: a PRACTALL consensus report. Allergy 2008. [PMID: 18053013 DOI: 10.1111/j.1398-9995.2007.01586] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Asthma is the leading chronic disease among children in most industrialized countries. However, the evidence base on specific aspects of pediatric asthma, including therapeutic strategies, is limited and no recent international guidelines have focused exclusively on pediatric asthma. As a result, the European Academy of Allergy and Clinical Immunology and the American Academy of Allergy, Asthma and Immunology nominated expert teams to find a consensus to serve as a guideline for clinical practice in Europe as well as in North America. This consensus report recommends strategies that include pharmacological treatment, allergen and trigger avoidance and asthma education. The report is part of the PRACTALL initiative, which is endorsed by both academies.
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Affiliation(s)
- L B Bacharier
- Department of Pediatrics, Washington University, St Louis, MO, USA
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Bacharier LB, Boner A, Carlsen KH, Eigenmann PA, Frischer T, Götz M, Helms PJ, Hunt J, Liu A, Papadopoulos N, Platts-Mills T, Pohunek P, Simons FER, Valovirta E, Wahn U, Wildhaber J. Diagnosis and treatment of asthma in childhood: a PRACTALL consensus report. Allergy 2008; 63:5-34. [PMID: 18053013 DOI: 10.1111/j.1398-9995.2007.01586.x] [Citation(s) in RCA: 367] [Impact Index Per Article: 22.9] [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: 11/29/2022]
Abstract
Asthma is the leading chronic disease among children in most industrialized countries. However, the evidence base on specific aspects of pediatric asthma, including therapeutic strategies, is limited and no recent international guidelines have focused exclusively on pediatric asthma. As a result, the European Academy of Allergy and Clinical Immunology and the American Academy of Allergy, Asthma and Immunology nominated expert teams to find a consensus to serve as a guideline for clinical practice in Europe as well as in North America. This consensus report recommends strategies that include pharmacological treatment, allergen and trigger avoidance and asthma education. The report is part of the PRACTALL initiative, which is endorsed by both academies.
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Affiliation(s)
- L B Bacharier
- Department of Pediatrics, Washington University, St Louis, MO, USA
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24
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Satinover S, Reefer A, Hulse K, Carper H, Platts-Mills T, Woodfolk J. Are the Pro-Allergic Properties of House Dust Mite Allergen Explained by the Adjuvant Effects of Mite DNA? J Allergy Clin Immunol 2007. [DOI: 10.1016/j.jaci.2006.12.381] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Bjerg-Bäcklund A, Bäcklund AB, Perzanowski MS, Platts-Mills T, Sandström T, Lundbäck B, Rönmark E. Asthma during the primary school ages--prevalence, remission and the impact of allergic sensitization. Allergy 2006; 61:549-55. [PMID: 16629783 DOI: 10.1111/j.1398-9995.2006.01027.x] [Citation(s) in RCA: 65] [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: 11/28/2022]
Abstract
BACKGROUND Childhood is the most important time for asthma development. The aims of this study were to study changes in prevalence of asthma and wheeze, remission of asthma and changes in risk factor pattern from age 7-8 to age 11-12 in a cohort of school children. METHODS In 1996, 3525 children aged 7-8 years in northern Sweden were invited to participate in a parental expanded ISAAC questionnaire survey. The cohort has been followed prospectively with yearly follow-ups to age 11-12, with a 97% yearly response rate. Skin prick tests were conducted at age 7-8 and 11-12. RESULTS The prevalence of physician-diagnosed asthma increased from 5.7% at age 7-8 to 7.7% at age 11-12. Life-time prevalence of wheeze was 34.7% at age 11-12. The remission of asthma was 10% yearly and inversely related to allergic sensitization. Relapses were common, and remission persisting throughout the observation period was 5% yearly. Allergic sensitization was associated with current asthma at age 7-8 [adjusted odds ratio (OR) 4.9 (95% confidence interval (CI) 3.3-7.3)] and when the children were 4 years older [OR 5.6 (3.9-8.2)]. A family history of asthma was associated with current asthma at age 7-8 [OR 3.0 (2.1-4.5)] and 11-12 (OR 2.8 [2.0-3.9]). Ever having lived with a cat was significantly negatively associated with current asthma. CONCLUSIONS The prevalence of asthma increased continuously during the primary school ages. Among several significant risk factors, allergic sensitization and a family history of asthma were the most important. With increasing age many known risk factors lost significance. Remission was inversely related to allergic sensitization.
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Affiliation(s)
- A Bjerg-Bäcklund
- The OLIN Studies, Department of Medicine, Sunderby Central Hospital of Norrbotten, Luleå, Sweden
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26
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Firrincieli V, Geldmaker B, Custis N, Ehrensberger R, Erwin E, Riposo D, Shufflebarger C, Ferguson L, Platts-Mills T. Risk factors for asthma among head start children: Evaluation of physical activity and allergy. J Allergy Clin Immunol 2003. [DOI: 10.1016/s0091-6749(03)80675-9] [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: 10/24/2022]
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27
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Rönmark E, Perzanowski M, Platts-Mills T, Lundbäck B. Incidence rates and risk factors for asthma among school children: a 2-year follow-up report from the obstructive lung disease in Northern Sweden (OLIN) studies. Respir Med 2002; 96:1006-13. [PMID: 12477216 DOI: 10.1053/rmed.2002.1391] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Studies of incidence of asthma are still limited. A longitudinal study of asthma in school children was started in 1996 in Northern Sweden. The incidence of asthma and the associated risk factors have been studied over a 2 years period. The study started with a parental questionnaire, the ISAAC questionnaire with additional questions, and a skin-prick test. The cohort, 3,525 children, 7 and 8 years old at start, was followed after 1 and 2 years by using the same questions, Each year responded 97%. The cumulative incidence of physician-diagnosed asthma was 1.7%, 0.9/1,000/year the first year, and 0.8/1,000/year the second year. The cumulative incidence of wheezing was 6.3%, and of frequent or daily users of asthma medicines 2.1%. Significant risk factors for incident asthma were a positive skin test, OR 5.64 (3.10-10.25); rhinitis,OR 3.53 (1.80-6.90); eczema, OR 2.19 (1.26-3.82); a family history of asthma, OR 2.83 (1.75-4.56); low birth weight, OR 3.38 (1.61-754); respiratory infections, OR 2.12 (1.24-3.63); male gender, OR 1.71 (1.06-2.81); and a smoking mother OR 2.00 (1.07-3.73). In summary the incidence of asthma during 2 years after age 7 was high, almost 1/100/year. Allergy was the most important risk factor, but other factors were influential.
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Affiliation(s)
- E Rönmark
- Department of Medicine, Sunderby Central Hospital of Norrbotten, Luleå, Sweden.
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28
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Crater DD, Heise S, Perzanowski M, Herbert R, Morse CG, Hulsey TC, Platts-Mills T. Asthma hospitalization trends in Charleston, South Carolina, 1956 to 1997: twenty-fold increase among black children during a 30-year period. Pediatrics 2001; 108:E97. [PMID: 11731624 DOI: 10.1542/peds.108.6.e97] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVE The increase in asthma prevalence has been documented worldwide, affecting many races living in many different climates. Multiple studies have demonstrated that the most striking prevalence and morbidity of asthma in the United States has been in black children, but little research has determined the scale of the increase, or specifically when the disease became severe in this group. This study sought to determine exactly when the rise in asthma hospitalizations among black patients began and what the pattern of asthma hospitalizations has been in different races and age groups over a 40-year period in 1 urban area. METHODS A retrospective chart review of discharges from the Medical University of South Carolina was conducted from 1956 to 1997. Charts with the primary discharge diagnosis of asthma were examined for discharge date, race, and age group (0- to 4-year-olds, 5- to 18-year-olds, 19- to 50-year-olds, > or =51-year-olds). The diagnostic codes used were based on the International Classification of Diseases (ICD)-6, 1956-1957; ICD-7, 1958-1967; ICD-8, 1968-1978; and ICD-9, 1979-1997. Over the period studied, this hospital was the primary inpatient provider for children in this area, and the only provider for uninsured children. Between 1960 and 1990, the racial makeup of the area remained stable, as did the percentage of blacks living at the poverty level. The raw number of asthma discharges, rate per 10 000 discharges of the same race, and rate per 100 000 population in Charleston County were tabulated for each age group and racial category. RESULTS Over the time period examined, there has been a progressive increase in asthma hospitalizations in black individuals of all age groups and in whites under 18 years. The most striking increase has been in black children 0 to 18 years old (figure). The increase either as raw values or as a rate per 100 000 began around 1970, and was linear. This increase in black children discharged with asthma as a rate per 100 000 population was 20-fold: the rate increased from 18 in 1970 to 370 in 1997. Asthma discharges as a rate per 10 000 black children discharged increased by 24-fold from 1960 to 1997. Total discharges from the hospital increased from 49 000 to 128 000 per year over this period. Blacks made up only 28% of discharges in 1957, but that proportion increased to 56% in 1960 and remained relatively stable over the following 35 years. The increase seen in white children 0 to 18 years of age as a rate per 100 000 population was 5-fold and began around 1980. Both increases seem to be consistent over the time period studied, and continued to 1997. [figure: see text]. CONCLUSIONS Among a predominantly poor black population living in a southern US city, there has been a steady increase in childhood asthma hospitalizations over the past 30 years. A significant although less dramatic rise has occurred in white children. Over this time period, although there have been many changes in lifestyle that could have contributed to this rise, there have been no major changes in housing conditions for poor patients. In addition, Medicaid coverage for children in South Carolina did not change significantly until 1999. The time course of these increases parallels increases reported in other Western populations, suggesting that there must be 1 or more common factors contributing to the rise. Many explanations have been offered for the changes in incidence and severity of asthma. The scale of the change, time course, and linearity of the increase in this study represent a challenge to many of the hypotheses proposed to explain this epidemic.
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Affiliation(s)
- D D Crater
- Department of Pediatrics, Children's Hospital, Medical University of South Carolina, Charleston, South Carolina, USA
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29
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Platts-Mills T, Vaughan J, Squillace S, Woodfolk J, Sporik R. Sensitisation, asthma, and a modified Th2 response in children exposed to cat allergen: a population-based cross-sectional study. Lancet 2001; 357:752-6. [PMID: 11253969 DOI: 10.1016/s0140-6736(00)04168-4] [Citation(s) in RCA: 547] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
BACKGROUND Although asthma is strongly associated with immediate hypersensitivity to indoor allergens, several studies have suggested that a cat in the house can decrease the risk of asthma. We investigated the immune response to cat and mite allergens, and asthma among children with a wide range of allergen exposure. METHODS We did a population-based cross-sectional study of children (aged 12-14 years), some of whom had symptoms of asthma and bronchial hyper-reactivity. Antibodies to mite (Der f 1) and cat (Fel d 1) allergens measured by isotype (IgG and IgG4) specific radioimmunoprecipitation assays were compared with sensitisation and allergen concentrations in house dust. FINDINGS 226 children were recruited, 47 of whom had symptoms of asthma and bronchial hyper-reactivity. Increasing exposure to mite was associated with increased prevalence of sensitisation and IgG antibody to Der f 1. By contrast, the highest exposure to cat was associated with decreased sensitisation, but a higher prevalence of IgG antibody to Fel d 1. Thus, among children with high exposure, the odds of sensitisation to mite rather than cat was 4.0 (99% CI 1.49-10.00). Furthermore, 31 of 76 children with 23 microg Fel d 1 at home, who were not sensitised to cat allergen had >125 units of IgG antibody to Fel d 1. Antibodies to Fel d 1 of the IgG4 isotype were strongly correlated with IgG antibody in both allergic and non-allergic children (r=0.84 and r=0.66, respectively). Sensitisation to mite or cat allergens was the strongest independent risk factor for asthma (p<0.001). INTERPRETATION Exposure to cat allergen can produce an IgG and IgG4 antibody response without sensitisation or risk of asthma. This modified T-helper-2 cell response should be regarded as a form of tolerance and may be the correct objective of immunotherapy. The results may also explain the observation that animals in the house can decrease the risk of asthma.
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Affiliation(s)
- T Platts-Mills
- University of Virginia Asthma and Allergic Diseases Center, University of Virginia Department of Medicine, Charlottesville, USA.
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30
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Rönmark E, Jönsson E, Platts-Mills T, Lundbäck B. Incidence and remission of asthma in schoolchildren: report from the obstructive lung disease in northern Sweden studies. Pediatrics 2001; 107:E37. [PMID: 11230618 DOI: 10.1542/peds.107.3.e37] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVE An increasing prevalence of asthma has been reported worldwide as well as in Sweden. In 1996, the prevalence of asthma and type 1 allergy was investigated in a cohort of 3525 children 7 and 8 years old in 3 areas of northern Sweden. The aim of the present study was to estimate the incidence of asthma and to identify risk factors for incident cases over 1 year. METHODS The study started with a parental questionnaire, the International Study of Asthma and Allergies in Childhood questionnaire with additional questions, a skin prick test, and a validation study. The cohort was followed up after 1 year with the same questions. The response rate to the questionnaire was 97% in 1996, and 3339 children (97%) participated both in 1996 and 1997. RESULTS The incidence of physician-diagnosed asthma was 0.9/100/year; of wheezing, 3.8/100/year; and of new frequent or daily users of asthma medicines, 1.1/100/year. There was no difference by sex. The risk factor pattern based on incident cases of asthma was different from that based on prevalent cases. Significant risk factors for incident asthma were a positive skin test (odds ratio [OR]: 9.3; 95% confidence interval [CI]: 3.8-22.7); low birth weight (OR: 7.4; 95% CI: 2.2-24.5); and family history of asthma (OR: 2.6; 95% CI: 1.1-6.3). Having or having had pets at home was associated with a decreased risk for asthma and wheezing based on prevalent cases, although it was associated with an increased risk for incidence of wheezing (OR: 2.9; 95% CI: 1.3-6.2). Remission of asthma, which was reported by 10% of the children with current asthma during 1 year, was associated with a negative skin test. CONCLUSION The incidence of asthma at the age of 8 years was high, but remission was also common. Important risk factors for the development of asthma at this age were type 1 allergy, low birth weight, and family history of asthma. Furthermore, the results suggest that in a region where sensitivity to domestic animals is a strong risk factor for asthma, the presence of pets in the home may have different effects in early childhood compared with later in childhood.
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Affiliation(s)
- E Rönmark
- OLIN Study Group, Department of Medicine, Sunderby Central Hospital of Norrbotten, Luleå, Sweden.
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31
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Rönmark E, Jönsson E, Platts-Mills T, Lundbäck B. Different pattern of risk factors for atopic and nonatopic asthma among children--report from the Obstructive Lung Disease in Northern Sweden Study. Allergy 1999; 54:926-35. [PMID: 10505455 DOI: 10.1034/j.1398-9995.1999.00044.x] [Citation(s) in RCA: 122] [Impact Index Per Article: 4.9] [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: 11/23/2022]
Abstract
BACKGROUND A cross-sectional study was performed among 78-year-old schoolchildren during the winter of 1996 in three municipalities in the most northern province of Sweden, Norrbotten. The study was the starting point of a longitudinal study of asthma, rhinitis, eczema, and type-1 allergy, and provided data on prevalence and risk factors for these conditions. The aim of the present study was to validate the classification of asthma based on a parental questionnaire, and to examine risk factors for atopic and nonatopic asthma. METHODS The ISAAC questionnaire with additional questions was distributed by the schools to the parents. The response rate was 97%, and 3431 completed questionnaires were returned. The children in Kiruna and Luleå were also invited to be skin tested, and 2149 (88%) were tested with 10 common airborne allergens. A structured interview was administered by pediatricians in stratified samples of the children to test the validity of the diagnosis of asthma based on the questionnaire. RESULTS After the validation study, the prevalence of "ever asthma" was estimated to be 8.0%. The specificity of the question, "Has your child been diagnosed as having asthma by a physician?", was high, >99%, while the sensitivity was around 70%. The strongest risk factor for "ever asthma" was a positive skin test (OR 3.9). Risk factors for asthma in the asthmatics who were not sensitized were family history of asthma, OR 3.6; breast-feeding less than 3 months, OR 1.8; past or present dampness at home, OR 1.8; smoking mother, OR 1.7; and male sex, OR 1.6. Among the sensitized asthmatics, only a family history of asthma was a significant risk factor (OR 3.0), while breast-feeding less than 3 months was not associated with an increased risk (OR 1.0). A synergistic effect between genetic and environmental factors was found especially in the nonatopic asthmatics; the children with a family history of asthma who had a smoking mother and past or present dampness at home had an OR for "ever asthma" of 13. CONCLUSIONS Different risk-factor patterns were found for asthma and type-1 allergy. In addition, the risk factors for atopic or allergic asthma diverged from those for nonatopic asthma.
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Affiliation(s)
- E Rönmark
- Department of Occupational Medicine, National Institute for Working Life, Stockholm/Solna, Sweden
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32
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Gold DR, Burge HA, Carey V, Milton DK, Platts-Mills T, Weiss ST. Predictors of repeated wheeze in the first year of life: the relative roles of cockroach, birth weight, acute lower respiratory illness, and maternal smoking. Am J Respir Crit Care Med 1999; 160:227-36. [PMID: 10390405 DOI: 10.1164/ajrccm.160.1.9807104] [Citation(s) in RCA: 213] [Impact Index Per Article: 8.5] [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: 11/16/2022] Open
Abstract
While more than 80% of childhood asthmatics are allergic to one or more inhaled allergens, the role of inhaled allergens in the induction of wheeze in the first year of life is unknown. In a prospective birth-cohort study of 499 children of asthmatic/allergic parents from metropolitan Boston, we examined home allergen concentrations measured within the first 3 mo of life as predictors of repeated wheeze episodes in the first year of life. In multivariate analyses adjusting for maternal asthma and dog in the home, predictors of two or more wheeze episodes in the first year of life included maternal smoking during pregnancy (relative risk [RR] = 1.83; 95% confidence limit [CL]: 1.12, 3.00), lower respiratory illness in the first year of life (croup, bronchitis, bronchiolitis, or pneumonia) (RR = 2.25; 95% CL:1.58, 3.19), low birthweight (RR = 1.28, 95% confidence interval [CI]: 1.04, 1.58 for an interquartile difference), and Bla g 1 or 2 (cockroach) allergen level in the family room > 0.05 U/g dust (RR = 1.76; 95% CL: 1.20, 2.57). Cockroach allergen in the family room and repeated wheeze remained significant after adjustment for socioeconomic factors including race and income (RR = 1.63; 95% CL: 1.05, 2.55). It is unknown whether the association between cockroach and repeated wheeze in infancy represents a cockroach-related increased risk of bronchial inflammation through nonallergenic or allergenic mechanisms.
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Affiliation(s)
- D R Gold
- Channing Laboratory, Department of Medicine, Brigham and Women's Hospital and the Harvard Medical School, Boston, MA, USA
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33
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Canady RG, Platts-Mills T, Murphy A, Johannesen R, Gaston B. Vital capacity reservoir and online measurement of childhood nitrosopnea are linearly related. Clinical implications. Am J Respir Crit Care Med 1999; 159:311-4. [PMID: 9872855 DOI: 10.1164/ajrccm.159.1.9803034] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.2] [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: 11/16/2022] Open
Abstract
Hypernitrosopnea, a robust marker for childhood asthma, is measured reproducibly in mixed vital capacity (VC) expirates. Recent guidelines for measurement of expired nitric oxide (NO) in adults have favored use of an online (OL), flow-dependent technique. We compared VC and OL NO measurements in 14 asthmatic and 11 control children 5 through 18 yr of age. After spirometry, subjects breathed both into an open-ended reservoir (20 cm H2O resistance) and into a tedlar bag (VC maneuver). End-expiratory pressure > 5 cm H2O was continuously maintained during VC measurements, and the velum remained shut. Eight additional children (24% of total number of subjects) were unable reproducibly to perform the OL measurement at constant flow (six asthmatics; two control children). For subjects able to perform the OL technique, OL and VC NO measurements were linearly related (r2 = 0.88). In children, VC NO assays are reproducible, sensitive in identifying asthma, and portable. Additionally, we have shown that (1) not all children are able to perform OL measurements, and (2) VC measurements vary linearly with OL measurements. These findings suggest that there may not be compelling reason to favor OL over VC measurements for hypernitrosopnea in children with asthma.
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Affiliation(s)
- R G Canady
- Departments of Pediatrics and Internal Medicine, University of Virginia Health Sciences Center, Charlottesville, Virginia, USA
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Weiss ST, O'Connor GT, DeMolles D, Platts-Mills T, Sparrow D. Indoor allergens and longitudinal FEV1 decline in older adults: the Normative Aging Study. J Allergy Clin Immunol 1998; 101:720-5. [PMID: 9648697 DOI: 10.1016/s0091-6749(98)70300-8] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.3] [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: 11/16/2022]
Abstract
We investigated the relationship between home allergen exposure and decline in FEV1 in 10 asthmatic and 30 randomly selected, age-matched, nonasthmatic participants in the Normative Aging Study. We defined asthma as subject-reported wheezing apart from colds, with either a physician's diagnosis of asthma or a methacholine PD20 FEV1 of 8.6 micromol or less. We examined the relationship between the annual decline in FEV1 and the concentrations of the cockroach (Blattella germanica) allergens Bla g 1 and Bla g 2, the dust mite (Dermatophagoides pteronyssinus and Dermatophagoides farinae) allergens Der p 1 and Der f 1, and the cat (Felis domesticus) allergen Fel d 1 in house dust specimens. Bla g 1 (-79.8 ml/yr, p = 0.0006) and Bla g 2 (-40.81 ml/yr, p = 0.0004) were significant predictors of decline in FEV1 after adjustment for age, smoking, and baseline FEV1. These results were unchanged after elimination of the asthmatic subjects from the analysis. We conclude that cockroach allergen levels in homes is a risk factor for accelerated decline in FEV1 independent of airway responsiveness.
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Affiliation(s)
- S T Weiss
- Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Mass, USA
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35
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Rönmark E, Lundbäck B, Jönsson E, Platts-Mills T. Asthma, type-1 allergy and related conditions in 7- and 8-year-old children in northern Sweden: prevalence rates and risk factor pattern. Respir Med 1998; 92:316-24. [PMID: 9616532 DOI: 10.1016/s0954-6111(98)90115-9] [Citation(s) in RCA: 78] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
As a first step in an intervention study of asthma and allergic diseases among school children, a cross-sectional study was performed during Winter 1996 in three towns (Kiruna, Luleå and Piteå) in the northernmost province of Sweden, Norrbotten. The cross-sectional study aimed to measure the prevalence of asthma, type-1 allergy and allergic diseases in order to make it possible to measure the incidence of the diseases, conditions and symptoms related to the diseases. Another aim was to perform a screening for possible risk factors. All children enrolled in the first and second classes at school, 7 and 8 years old, were invited to take part in this study. The ISAAC questionnaire with added questions about symptoms, morbidity, heredity and environment was distributed by the schools to the parents. The response rate was 97%, and 3431 completed questionnaires were returned. The children in two of the municipalities were also invited to skin test, and 2149 (88%) were tested with 10 common airborne allergens. The results showed that 7% of the children were currently using or had used asthma medicines during the last 12 months. Six percent had asthma diagnosed by a physician, and 4% were using inhaled corticosteroids. The prevalence of wheezing during the last 12 months was 12%, rhinitis without colds 14%, and eczema 27%, while 21% had a positive skin test. The respiratory symptoms and conditions were significantly greater in boys and, further, they were most prevalent in Kiruna in the very north, though not significantly. Type-1 allergy and asthma had different risk factor patterns. The main risk factors for asthma were a family history of asthma (OR = 3.2) followed by past or present house dampness (OR = 1.9), male sex (OR = 1.7) and a smoking mother (OR = 1.6). In Kiruna, when none of these three risk factors were present, none of the children had asthma, but when all three were present, 38% of these children were using asthma medicines.
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Affiliation(s)
- E Rönmark
- Department of Occupational Health, National Institute for Working Life, Umeå, Sweden
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Chan-Yeung M, Manfreda J, Dimich-Ward H, Lam J, Ferguson A, Warren P, Simons E, Broder I, Chapman M, Platts-Mills T. Mite and cat allergen levels in homes and severity of asthma. Am J Respir Crit Care Med 1995; 152:1805-11. [PMID: 8520740 DOI: 10.1164/ajrccm.152.6.8520740] [Citation(s) in RCA: 72] [Impact Index Per Article: 2.5] [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: 01/31/2023] Open
Abstract
The relationships between mite and cat allergen levels in the home, skin test reactivity, and severity of asthma were explored in 120 asthmatic subjects, 57 in Vancouver and 63 in Winnipeg. Patients in the two cities were similar in age, gender distribution, and severity of asthma. Skin tests were performed using 13 common allergens, including D. pteronyssinus, D. farinae, and cat dander, as well as control subjects. Patients recorded their asthma symptoms, medication requirement, and twice daily peak expiratory flow rate for 1 yr. Dust samples were collected every 3 mo during each season of 1992 through 1993 in both cities. Mite and cat allergen levels were determined with an ELISA using monoclonal antibodies against Der p I, Der f I, and Fel d I. There was no relationship between skin test reactivity and levels of mite and cat allergens. In children with positive skin tests to either mite allergen, total mite (sum of Der p I and Der f I) allergen level was positively related to the mean daily symptom score and negatively related to the daily mean PEF (% of predicted). There was no such relationship among adult asthmatic patients with positive skin tests to either mite allergen. No relationship was found between cat allergen level and the severity of asthma.
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Affiliation(s)
- M Chan-Yeung
- Department of Medicine, University of British Columbia, Vancouver, Canada
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Arlian LG, Bernstein D, Bernstein IL, Friedman S, Grant A, Lieberman P, Lopez M, Metzger J, Platts-Mills T, Schatz M. Prevalence of dust mites in the homes of people with asthma living in eight different geographic areas of the United States. J Allergy Clin Immunol 1992; 90:292-300. [PMID: 1527314 DOI: 10.1016/s0091-6749(05)80006-5] [Citation(s) in RCA: 142] [Impact Index Per Article: 4.4] [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: 12/27/2022]
Abstract
The density and species prevalence of dust mites were determined at various times over a 5-year-period in 252 homes of dust mite sensitive people with asthma who lived in eight geographic areas of the United States (Cincinnati, Ohio; New Orleans, La.; Memphis, Tenn.; Galveston, Texas; Greenville, N.C.; Delray Beach, Fla.; San Diego and Los Angeles, Calif.). The most common dust mites found in the homes were Dermatophagoides farinae (DF), D. pteronyssinus (DP), Euroglyphus maynei (EM), and Blomia tropicalis. All homes in all locations contained Dermatophagoides spp. mites, but few homes were populated exclusively by either DF or DP alone. Most homes (81.7%) were coinhabitated by both DF and DP. In coinhabited homes one species was predominant and usually made up at least 75% of the total mite population. Prevalence of the dominant or only species present varied between homes within a geographic area. EM occurred in significant numbers in 35.7% of homes in New Orleans, Memphis, Galveston, Delray Beach, and San Diego. Blomia tropicalis occurred in these same cities but in low densities. For all dust samples, only 13 homes of the 252 sampled had 100 or fewer mites/gm dust, which is considered to be the threshold for sensitivity. Most homes had average mite densities of 500 or more mites/gm dust. The results of the present study suggest a significant and widespread occurrence of both DF and DP. Therefore extracts of both mite species should be considered for diagnostic tests and immunotherapy. Significant levels of EM were present in some areas. Thus sensitivity to EM should be considered in these areas.
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Affiliation(s)
- L G Arlian
- Department of Biological Sciences, Wright State University, Dayton, OH 45435
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Cloud ML, Enas GC, Kemp J, Platts-Mills T, Altman LC, Townley R, Tinkelman D, King T, Middleton E, Sheffer AL. A specific LTD4/LTE4-receptor antagonist improves pulmonary function in patients with mild, chronic asthma. Am Rev Respir Dis 1989; 140:1336-9. [PMID: 2554766 DOI: 10.1164/ajrccm/140.5.1336] [Citation(s) in RCA: 83] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
LY171883 is a new selective LTD4/LTE4-receptor antagonist. To evaluate the efficacy of LY171883, we studied 138 nonsmoking asthmatic patients, 18 to 65 yr old, in a double-blind, randomized block-design study. All patients were required to demonstrate a greater than or equal to 15% increase in FEV1 after inhaled bronchodilator use and were then randomly assigned to either LY171883 (600 mg) or placebo twice daily for 6 weeks. Assessment of efficacy was measured by inhaled metaproterenol use (mg/wk), symptoms, twice-daily peak expiratory flow, and weekly FEV1 measurements. LY171883-treated patients had improved FEV1 values upon completion of the treatment period compared with placebo recipients (p = 0.003). Metaproterenol use decreased in both groups, but treatment differences, though not statistically significant, favored LY171883 (p = 0.089). Of patients who used at least 23 mg/wk of metaproterenol (36 inhalations) at initiation of the study, those who received LY171883 used significantly less metaproterenol than those who received placebo (p = 0.007). LY171883 was well tolerated and reduced the need for a bronchodilator drug while improving pulmonary function. Results of this study support the hypothesis that leukotrienes LTD4 and/or LTE4 may be important in the pathogenesis of asthma in humans.
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Hollingworth P, de Vere Tyndall A, Ansell BM, Platts-Mills T, Gumpel JM, Mertin J, Smith DS, Denman AM. Intensive immunosuppression versus prednisolone in the treatment of connective tissue diseases. Ann Rheum Dis 1982; 41:557-62. [PMID: 6128961 PMCID: PMC1000984 DOI: 10.1136/ard.41.6.557] [Citation(s) in RCA: 28] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Intensive immunosuppression (IIS) was compared with prednisolone alone over a 2-year period in the treatment of severe connective tissue diseases. IIS consisted of 15 daily infusions of 750 mg antilymphocyte globulin (ALG), azathioprine 2.5 mg/kg/day, and prednisolone reducing from 150 mg, followed by maintenance azathioprine and prednisolone. The initial dose for prednisolone by itself was 60 mg and patients not responding to this regimen over a minimum of one month were then given IIS. Forty-one patients with life-threatening or severely disabling polyarteritis nodosa (PAN), dermatomyositis/polymyositis (DM), or systemic lupus erythematosus received one or other treatment. All 11 patients who received IIS for PAN remitted. Ten of these had renal impairment which was reversed or halted with IIS, and in 6 of these renal function had been deteriorating with prednisolone alone. One patient died of pneumonia in renal failure 9 months later but with PAN in remission. Two further patients, neither having renal involvement, achieved remission with prednisolone alone. Early cytotoxic treatment would seem to be indicated in PAN when there is renal involvement. Two patients with DM entered remission or prednisolone alone. The remaining 12, of whom 5 had failed steroid therapy, received IIS. Improvement or halting of deterioration was achieved in all 12 with best results in those without marked muscle wasting consequent to disease of long duration. The results suggest that IIS may be a useful adjunct in those patients failing to respond to prednisolone. IIS seemed no more effective than prednisolone alone in the treatment of the 14 patients with SLE and in particular lupus nephritis. Flares in disease activity were common in both groups and appeared to be related to prednisolone dosage. IIS was generally well tolerated, though infection occurred in 2 patients. Vertebral collapse or osteonecrosis of the femoral head occurred in 3 patients following IIS, all of whom had been previously receiving prednisolone for long periods.
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Pereira S, Webster D, Platts-Mills T. Immature B cells in fetal development and immunodeficiency: studies of IgM, IgG, IgA and IgD production in vitro using Epstein-Barr virus activation. Eur J Immunol 1982; 12:540-6. [PMID: 6288397 DOI: 10.1002/eji.1830120703] [Citation(s) in RCA: 38] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Epstein-Barr virus has been used as a B cell mitogen to explore the parallels between the B cells found in patients with hypogammaglobulinemia and the immature B cells in fetal tissues. Peripheral blood lymphocytes from 29 cases of late onset hypogammaglobulinemia (common variable immunodeficiency) and from 10 cases of X-linked hypogammaglobulinemia were depleted of T lymphocytes and stimulated with virus in vitro. Immunoglobulin production was measured over a 4-week culture period using inhibition radioimmunoassays for IgM, IgG, IgA and IgD. The results were compared with those seen with fetal liver cells, cord blood lymphocytes and adult lymphocytes. Virus-stimulated cells from fetal sources produced small amounts of IgG and IgA relative to IgM, the ratio of IgM to IgG in the second week being in all cases greater than 10. Similar patterns were seen in 25/29 cases of late onset hypogammaglobulinemia, and in the eight cases of X-linked hypogammaglobulinemia that responded in vitro. In contrast, the ratio of IgM to IgG was always less than 8 in cultures of normal adult peripheral blood or bone marrow lymphocytes, and also in cultures from four cases of hypogammaglobulinemia known independently to have abnormal circulating suppressor cells. Eight cases of selective IgA deficiency showed reduced IgA production; six of these showed a normal ratio of IgM to IgG production. Thus, the B lymphocytes which circulate in many patients with hypogammaglobulinemia are functionally immature.
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Janossy G, Gomez De La Concha E, Waxdal MJ, Platts-Mills T. The effects of purified mitogenic proteins (Pa-1 and Pa-2) from pokeweed on human T and B lymphocytes in vitro. Clin Exp Immunol 1976; 26:108-17. [PMID: 1087210 PMCID: PMC1540818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Purified proteins (Pa-1 and Pa-2) from pokeweed have been compared with commercial pokeweed mitogen (PWM-G) and other mitogens in their ability to stimulate human lymphocytes. With cultures of T and B cells separated from tonsil lymphocytes, thymidine uptake, blast transformation and immunoglobulin (Ig) synthesis have been measured. IgM and IgG was measured in supernates of stimulated cultures by radioimmunoassay. Pa-1, Pa-2 and PWM-G were found to be potent mitogens for unseparated tonsil lymphocytes or nylon column purified T cells. Pa-2 was found to be active at lower concentrations than Pa-1, and PWM-G was less potent than the purified mitogens. These three mitogens all stimulated unseparated lymphocytes to secrete large quantities of Ig (20-100 mug/ml) during 7 days in culture. With increasing amounts of mitogens severe decreases in immunoglobulin synthesis were observed at day 6 even with doses which were still optimal for stimulation of thymidine uptake at days 3 and 6. With purified B cells (less than 2% T cells) Pa-1 was the best mitogen for thymidine incorporation. However, the secretory response was very variable. In some experiments B cells did not secrete Ig in response to mitogens; in others Pa-1 was clearly more effective at stimulating secretion than Pa-2 or PWM-G and in some experiments B cells were stimulated by all three. In one experiment Pa-1 stimulated prolymphocytic leukaemia cells to blast transformation and the secretion of IgM. It is concluded that Pa-1, Pa-2 and PWM-G are much better activators of Ig synthesis in human cultures than either PHA or LPS and that Pa-1 is the most reliable B-cell stimulant of the three.
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