1
|
Han S, Jia M, Yuan W, Wang Y, Lu Y, Xu Y, Shang L. The association between peripheral eosinophil count and chronic kidney disease: evidence from NHANES 1999-2018. Ren Fail 2024; 46:2319324. [PMID: 38390735 PMCID: PMC10896169 DOI: 10.1080/0886022x.2024.2319324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Accepted: 02/09/2024] [Indexed: 02/24/2024] Open
Abstract
BACKGROUND Renal impairment has been previously linked to peripheral eosinophil count (PEC), prompting an investigation into its potential relationship with chronic kidney disease (CKD). This cross-sectional study utilized data from the National Health and Nutrition Examination Survey (NHANES 1999-2018) to comprehensively explore the association between PEC and CKD. METHODS Survey-weighted generalized multivariate linear regression was employed to evaluate the associations between PEC, urinary albumin-to-creatinine ratio (UACR), and estimated glomerular filtration rate (eGFR), with meticulous adjustment for potential covariates. To assess non-linear correlations, a restricted cubic spline analysis was conducted. Sensitivity analysis was performed to test the stability of results. RESULTS The study included a total of 9224 participants with non-dialysis CKD. In the multivariate linear regression model, after comprehensive adjustment for potential covariates, PEC showed a negative association with eGFR (β per 100 cells/uL increase in PEC, -0.71; 95% CI, -1.04, -0.37), while demonstrating a positive trend with UACR (β per 100 cells/uL increase in PEC, 10.21; 95% CI, 1.37, 19.06). The restrictive cubic spline curve analysis suggested that these associations occurred within the range of 0 to 400 cells/uL for PEC. Sensitivity analysis supported the stability of the observed results. CONCLUSIONS Circulating eosinophil levels are negatively correlated with eGFR and demonstrate a positive trend with UACR, when PEC falls within the range of less than 400 cells/uL among adults with CKD. Further research is warranted to validate these findings.
Collapse
Affiliation(s)
- Shisheng Han
- Department of Nephrology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Meng Jia
- Department of Nephrology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Wenli Yuan
- Department of Nephrology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yi Wang
- Department of Nephrology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yan Lu
- Department of Nephrology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yanqiu Xu
- Department of Nephrology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Li Shang
- Institute of Science, Technology and Humanities, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| |
Collapse
|
2
|
Zahraei HN, Schleich F, Louis G, Gerday S, Sabbe M, Bougard N, Guissard F, Paulus V, Henket M, Petre B, Donneau AF, Louis R. Evidence for 2 clusters among patients with noneosinophilic asthma. Ann Allergy Asthma Immunol 2024; 133:57-63.e4. [PMID: 38499060 DOI: 10.1016/j.anai.2024.03.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Revised: 03/13/2024] [Accepted: 03/13/2024] [Indexed: 03/20/2024]
Abstract
BACKGROUND Although asthma is often seen as an eosinophilic disease associated with atopy, patients with noneosinophilic asthma represent a substantial part of the population with asthma. OBJECTIVE To apply an unsupervised clustering method in a cohort of 588 patients with noneosinophilic asthma (sputum eosinophils < 3%) recruited from an asthma clinic of a secondary care center. METHODS Our cluster analysis of the whole cohort identified 2 subgroups as cluster 1 (n = 417) and cluster 2 (n = 171). RESULTS Cluster 1 comprised a predominantly female group with late disease onset, a low proportion of atopy (24%), and a substantial smoking history (53%). In this cluster, treatment burden was low (<50% of inhaled corticosteroid users); asthma control and quality of life were poor, with median Asthma Control Test, Asthma Control Questionnaire, and Asthma Quality of Life scores of 16, 1.7, and 4.5, respectively, whereas lung function was preserved with a median postbronchodilation forced expiratory volume in 1 second of 93% predicted. Cluster 2 was a predominantly male group, almost exclusively comprising patients with atopy (99%) with early disease onset and a moderate treatment burden (median inhaled corticosteroids dose 800 µg/d equivalent beclomethasone). In cluster 2, asthma was partially controlled, with median Asthma Control Test and Asthma Control Questionnaire scores reaching 18 and 1.3, respectively, and lung function well preserved with a median postbronchodilation of 95% predicted. Although systemic and airway neutrophilic inflammation was the dominant pattern in cluster 1, cluster 2 essentially comprised paucigranulocytic asthma with moderately elevated fraction exhaled nitric oxide. CONCLUSION Noneosinophilic asthma splits into 2 clusters distinguishing by disease onset, atopic status, smoking history, systemic and airway inflammation, and disease control and quality of life.
Collapse
Affiliation(s)
- Halehsadat Nekoee Zahraei
- Biostatistics Unit, Department of Public Health, University of Liège, Liège, Belgium; Department of Pneumology, GIGA, University of Liège, Liège, Belgium
| | | | - Gilles Louis
- Department of Public Health, University of Liège, Liège, Belgium
| | - Sara Gerday
- Department of Pneumology, GIGA, University of Liège, Liège, Belgium
| | - Mare Sabbe
- Department of Pneumology, GIGA, University of Liège, Liège, Belgium
| | - Nicolas Bougard
- Department of Pneumology, GIGA, University of Liège, Liège, Belgium
| | | | - Virginie Paulus
- Department of Pneumology, GIGA, University of Liège, Liège, Belgium
| | - Monique Henket
- Department of Pneumology, GIGA, University of Liège, Liège, Belgium
| | - Benoit Petre
- Department of Pneumology, GIGA, University of Liège, Liège, Belgium
| | | | - Renaud Louis
- Department of Pneumology, GIGA, University of Liège, Liège, Belgium.
| |
Collapse
|
3
|
Kole TM, Muiser S, Kraft M, Siddiqui S, Fabbri LM, Rabe KF, Papi A, Brightling C, Singh D, van der Molen T, Nawijn MC, Kerstjens HAM, van den Berge M. Sex differences in asthma control, lung function and exacerbations: the ATLANTIS study. BMJ Open Respir Res 2024; 11:e002316. [PMID: 38901877 PMCID: PMC11191767 DOI: 10.1136/bmjresp-2024-002316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Accepted: 05/31/2024] [Indexed: 06/22/2024] Open
Abstract
BACKGROUND Asthma is a heterogeneous disease with a prevalence and severity that differs between male and female patients. QUESTION What are differences between male and female patients with asthma with regard to asthma control, lung function, inflammation and exacerbations? METHODS We performed a post hoc analysis in the ATLANTIS (Assessment of Small Airways Involvement in Asthma) study, an observational cohort study including patients with asthma from nine countries with a follow-up of 1 year during which patients were characterised with measures of large and small airway function, questionnaires, inflammation and imaging. We compared differences in baseline characteristics and longitudinal outcomes between male and female patients with asthma. RESULTS 773 patients were enrolled; 450 (58%) of these were female. At baseline, female patients with asthma were in higher Global Initiative for Asthma (GINA) steps (p=0.042), had higher Asthma Control Questionnaire 6 (F: 0.83; M: 0.66, p<0.001) and higher airway resistance as reflected by uncorrected impulse oscillometry outcomes (ie, R5-R20: F: 0.06; M: 0.04 kPa/L/s, p=0.002). Male patients with asthma had more severe airway obstruction (forced expiratory volume in 1 s/forced vital capacity % predicted: F: 91.95; M: 88.33%, p<0.01) and more frequently had persistent airflow limitation (F: 27%; M: 39%, p<0.001). Blood neutrophils were significantly higher in female patients (p=0.014). With Cox regression analysis, female sex was an independent predictor for exacerbations. INTERPRETATION We demonstrate that female patients are in higher GINA steps, exhibit worse disease control, experience more exacerbations and demonstrate higher airway resistance compared with male patients. The higher exacerbation risk was independent of GINA step and blood eosinophil level. Male patients, in turn, have a higher prevalence of persistent airflow limitation and more severe airflow obstruction. These findings show sex can affect clinical phenotyping and outcomes in asthma. TRIAL REGISTRATION NUMBER NCT02123667.
Collapse
Affiliation(s)
- Tessa M Kole
- Department of Pulmonology and Tuberculosis, University Medical Centre Groningen, Groningen, The Netherlands
- Groningen Research Institute for Asthma and COPD, University Medical Centre Groningen, Groningen, The Netherlands
| | - Susan Muiser
- Department of Pulmonology and Tuberculosis, University Medical Centre Groningen, Groningen, The Netherlands
- Groningen Research Institute for Asthma and COPD, University Medical Centre Groningen, Groningen, The Netherlands
| | - Monica Kraft
- Samuel Bronfman Department of Medicine, Icahn School of Medicine, Mount Sinai Medical Center, New York, New York, USA
| | - Salman Siddiqui
- National Heart & Lung Institute, Imperial College London, London, UK
| | - Leonardo M Fabbri
- Department of Respiratory Medicine and Translational Medicine, University of Ferrara, Ferrara, Italy
| | - Klaus F Rabe
- LungenClinic Grosshansdorf GmbH, Grosshansdorf, Germany
- Department of Medicine, Christian Albrechts University Kiel, Kiel, Germany
| | - Alberto Papi
- Department of Respiratory Medicine and Translational Medicine, University of Ferrara, Ferrara, Italy
| | - Chris Brightling
- Institute for Lung Health, National Institute for Health Research Biomedical Research Centre, University of Leicester, Leicester, UK
| | - Dave Singh
- Centre for Respiratory Medicine and Allergy, The University of Manchester, Manchester University NHS Foundation Trust, Manchester, UK
| | - Thys van der Molen
- Groningen Research Institute for Asthma and COPD, University Medical Centre Groningen, Groningen, The Netherlands
- Department of General Practice and Elderly Care Medicine, University Medical Centre Groningen, Groningen, The Netherlands
| | - Martijn C Nawijn
- Groningen Research Institute for Asthma and COPD, University Medical Centre Groningen, Groningen, The Netherlands
- Department of Medical Biology and Pathology, University Medical Centre Groningen, Groningen, The Netherlands
| | - Huib A M Kerstjens
- Department of Pulmonology and Tuberculosis, University Medical Centre Groningen, Groningen, The Netherlands
- Groningen Research Institute for Asthma and COPD, University Medical Centre Groningen, Groningen, The Netherlands
| | - Maarten van den Berge
- Department of Pulmonology and Tuberculosis, University Medical Centre Groningen, Groningen, The Netherlands
- Groningen Research Institute for Asthma and COPD, University Medical Centre Groningen, Groningen, The Netherlands
| |
Collapse
|
4
|
Chen YF, Hou HH, Chien N, Lu KZ, Chen YY, Hung ZC, Chien JY, Wang HC, Yu CJ. Type 2 Biomarkers and Their Clinical Implications in Bronchiectasis: A Prospective Cohort Study. Lung 2024:10.1007/s00408-024-00707-0. [PMID: 38884647 DOI: 10.1007/s00408-024-00707-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Accepted: 05/14/2024] [Indexed: 06/18/2024]
Abstract
PURPOSE Bronchiectasis is predominantly marked by neutrophilic inflammation. The relevance of type 2 biomarkers in disease severity and exacerbation risk is poorly understood. This study explores the clinical significance of these biomarkers in bronchiectasis patients. METHODS In a cross-sectional cohort study, bronchiectasis patients, excluding those with asthma or allergic bronchopulmonary aspergillosis, underwent clinical and radiological evaluations. Bronchoalveolar lavage samples were analyzed for cytokines and microbiology. Blood eosinophil count (BEC), serum total immunoglobulin E (IgE), and fractional exhaled nitric oxide (FeNO) were measured during stable disease states. Positive type 2 biomarkers were defined by established thresholds for BEC, total IgE, and FeNO. RESULTS Among 130 patients, 15.3% demonstrated BEC ≥ 300 cells/μL, 26.1% showed elevated FeNO ≥ 25 ppb, and 36.9% had high serum total IgE ≥ 75 kU/L. Approximately 60% had at least one positive type 2 biomarker. The impact on clinical characteristics and disease severity was variable, highlighting BEC and FeNO as reflective of different facets of disease severity and exacerbation risk. The combination of low BEC with high FeNO appeared to indicate a lower risk of exacerbation. However, Pseudomonas aeruginosa colonization and a high neutrophil-to-lymphocyte ratio (NLR ≥ 3.0) were identified as more significant predictors of exacerbation frequency, independent of type 2 biomarker presence. CONCLUSIONS Our study underscores the distinct roles of type 2 biomarkers, highlighting BEC and FeNO, in bronchiectasis for assessing disease severity and predicting exacerbation risk. It advocates for a multi-biomarker strategy, incorporating these with microbiological and clinical assessments, for comprehensive patient management.
Collapse
Affiliation(s)
- Yen-Fu Chen
- Department of Internal Medicine, National Taiwan University Hospital, Yunlin Branch, Yunlin County, Taiwan
- Graduate Institute of Clinical Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan
- Thoracic Medicine Center, Department of Medicine and Surgery, National Taiwan University Hospital, Yunlin Branch, Yunlin County, Taiwan
| | - Hsin-Han Hou
- Graduate Institute of Oral Biology, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Ning Chien
- Department of Medical Imaging, National Taiwan University Cancer Center, Taipei, Taiwan
| | - Kai-Zen Lu
- Department of Internal Medicine, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Ying-Yin Chen
- Precision Medicine Center, National Taiwan University Hospital, Yunlin Branch, Hu-Wei, Taiwan
| | - Zheng-Ci Hung
- Department of Internal Medicine, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Jung-Yien Chien
- Graduate Institute of Clinical Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan
- Department of Internal Medicine, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Hao-Chien Wang
- Department of Internal Medicine, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei, Taiwan
- Department of Medicine, National Taiwan University Cancer Center, Taipei, Taiwan
| | - Chong-Jen Yu
- Graduate Institute of Clinical Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan.
- Department of Internal Medicine, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei, Taiwan.
- Department of Internal Medicine, National Taiwan University Hospital, Hsin-Chu Branch, Hsin-Chu, Taiwan.
| |
Collapse
|
5
|
Hong YS, Park HY, Ryu S, Shin SH, Zhao D, Singh D, Guallar E, Cho J, Chang Y, Lim SY. The association of blood eosinophil counts and FEV 1 decline: a cohort study. Eur Respir J 2024; 63:2301037. [PMID: 38636990 DOI: 10.1183/13993003.01037-2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Accepted: 04/07/2024] [Indexed: 04/20/2024]
Abstract
BACKGROUND Accelerated lung function decline is characteristic of COPD. However, the association between blood eosinophil counts and lung function decline, accounting for current smoking status, in young individuals without prevalent lung disease is not fully understood. METHODS This is a cohort study of 629 784 Korean adults without COPD or a history of asthma at baseline who participated in health screening examinations including spirometry and differential white blood cell counts. We used a linear mixed-effects model to estimate the annual change in forced expiratory volume in 1 s (FEV1) (mL) by baseline blood eosinophil count, adjusting for covariates including smoking status. In addition, we performed a stratified analysis by baseline and time-varying smoking status. RESULTS During a mean follow-up of 6.5 years (maximum 17.8 years), the annual change in FEV1 (95% CI) in participants with eosinophil counts <100, 100-199, 200-299, 300-499 and ≥500 cells·µL-1 in the fully adjusted model were -23.3 (-23.9--22.7) mL, -24.3 (-24.9--23.7) mL, -24.8 (-25.5--24.2) mL, -25.5 (-26.2--24.8) mL and -26.8 (-27.7--25.9) mL, respectively. When stratified by smoking status, participants with higher eosinophil count had a faster decline in FEV1 than those with lower eosinophil count in both never- and ever-smokers, which persisted when time-varying smoking status was used. CONCLUSIONS Higher blood eosinophil counts were associated with a faster lung function decline among healthy individuals without lung disease, independent of smoking status. The findings suggest that higher blood eosinophil counts contribute to the risk of faster lung function decline, particularly among younger adults without a history of lung disease.
Collapse
Affiliation(s)
- Yun Soo Hong
- McKusick-Nathans Institute, Department of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Departments of Epidemiology and Medicine, and Welch Center for Prevention, Epidemiology, and Clinical Research, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, USA
- Y.S. Hong and H.Y. Park contributed equally as co-first authors
| | - Hye Yun Park
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
- Y.S. Hong and H.Y. Park contributed equally as co-first authors
| | - Seungho Ryu
- Center for Cohort Studies, Total Healthcare Center, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, South Korea
- Department of Occupational and Environmental Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, South Korea
- Department of Clinical Research and Evaluation, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul, South Korea
| | - Sun Hye Shin
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Di Zhao
- Departments of Epidemiology and Medicine, and Welch Center for Prevention, Epidemiology, and Clinical Research, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, USA
- Department of Clinical Research and Evaluation, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul, South Korea
| | - Dave Singh
- Medicines Evaluation Unit, University of Manchester, Manchester University NHS Foundation Trust, Manchester, UK
| | - Eliseo Guallar
- Departments of Epidemiology and Medicine, and Welch Center for Prevention, Epidemiology, and Clinical Research, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, USA
- Department of Clinical Research and Evaluation, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul, South Korea
| | - Juhee Cho
- Departments of Epidemiology and Medicine, and Welch Center for Prevention, Epidemiology, and Clinical Research, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, USA
- Department of Clinical Research and Evaluation, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul, South Korea
| | - Yoosoo Chang
- Center for Cohort Studies, Total Healthcare Center, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, South Korea
- Department of Occupational and Environmental Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, South Korea
- Department of Clinical Research and Evaluation, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul, South Korea
- Y. Chang and S.Y. Lim contributed equally to this article as lead authors and supervised the work
| | - Seong Yong Lim
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, South Korea
- Y. Chang and S.Y. Lim contributed equally to this article as lead authors and supervised the work
| |
Collapse
|
6
|
Drynda A, Padjas A, Wójcik K, Dziedzic R, Biedroń G, Wawrzycka-Adamczyk K, Włudarczyk A, Wilańska J, Musiał J, Zdrojewski Z, Czuszyńska Z, Masiak A, Majdan M, Jeleniewicz R, Augustyniak-Bartosik H, Jakuszko K, Krajewska M, Dębska-Ślizień A, Storoniak H, Bułło-Piontecka B, Tłustochowicz W, Kur-Zalewska J, Wisłowska M, Głuszko P, Madej M, Jassem E, Damps-Konstańska I, Kucharz E, Brzosko M, Milchert M, Hawrot-Kawecka A, Miłkowska-Dymanowska J, Górski P, Lewandowska-Polak A, Makowska J, Zalewska J, Zaręba L, Bazan-Socha S. Clinical Characteristics of EGPA Patients in Comparison to GPA Subgroup with Increased Blood Eosinophilia from POLVAS Registry. J Immunol Res 2024; 2024:4283928. [PMID: 38699219 PMCID: PMC11065486 DOI: 10.1155/2024/4283928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2023] [Revised: 03/26/2024] [Accepted: 04/06/2024] [Indexed: 05/05/2024] Open
Abstract
Objective To characterize the eosinophilic granulomatosis with polyangiitis (EGPA) population from the POLVAS registry depending on ANCA status and diagnosis onset, including their comparison with the granulomatosis with polyangiitis (GPA) subset with elevated blood eosinophilia (min. 400/μl) (GPA HE) to develop a differentiating strategy. Methods A retrospective analysis of the POLVAS registry. Results The EGPA group comprised 111 patients. The ANCA-positive subset (n = 45 [40.54%]) did not differ from the ANCA-negative one in clinics. Nevertheless, cardiovascular manifestations were more common in ANCA-negative patients than in those with anti-myeloperoxidase (MPO) antibodies (46.97% vs. 26.92%, p = 0.045). Patients diagnosed before 2012 (n = 70 [63.06%]) were younger (median 41 vs. 49 years, p < 0.01), had higher blood eosinophilia at diagnosis (median 4,946 vs. 3,200/μl, p < 0.01), and more often ear/nose/throat (ENT) and cardiovascular involvement. GPA HE comprised 42 (13.00%) out of 323 GPA cases with reported blood eosinophil count. Both GPA subsets had a lower prevalence of respiratory, cardiovascular, and neurologic manifestations but more often renal and ocular involvement than EGPA. EGPA also had cutaneous and gastrointestinal signs more often than GPA with normal blood eosinophilia (GPA NE) but not GPA HE. The model differentiating EGPA from GPA HE, using ANCA status and clinical manifestations, had an AUC of 0.92, sensitivity of 96%, and specificity of 95%. Conclusion Cardiovascular symptoms were more prevalent in the ANCA-negative subset than in the MPO-ANCA-positive one. Since EGPA and GPE HE share similarities in clinics, diagnostic misleading may result in an inappropriate therapeutic approach. Further studies are needed to optimize their differentiation and tailored therapy, including biologics.
Collapse
Affiliation(s)
- Anna Drynda
- Students' Scientific Group of Immune Diseases and Hypercoagulation, Jagiellonian University Medical College, Cracow, Poland
| | - Agnieszka Padjas
- 2nd Department of Internal Medicine, Jagiellonian University Medical College, Cracow, Poland
| | - Krzysztof Wójcik
- 2nd Department of Internal Medicine, Jagiellonian University Medical College, Cracow, Poland
| | - Radosław Dziedzic
- Doctoral School of Medical and Health Sciences, Jagiellonian University Medical College, Cracow, Poland
| | - Grzegorz Biedroń
- 2nd Department of Internal Medicine, Jagiellonian University Medical College, Cracow, Poland
| | | | - Anna Włudarczyk
- 2nd Department of Internal Medicine, Jagiellonian University Medical College, Cracow, Poland
| | - Joanna Wilańska
- 2nd Department of Internal Medicine, Jagiellonian University Medical College, Cracow, Poland
| | - Jacek Musiał
- 2nd Department of Internal Medicine, Jagiellonian University Medical College, Cracow, Poland
| | - Zbigniew Zdrojewski
- Department of Internal Medicine, Connective Tissue Diseases and Geriatrics, Medical University of Gdansk, Gdansk, Poland
| | - Zenobia Czuszyńska
- Department of Internal Medicine, Connective Tissue Diseases and Geriatrics, Medical University of Gdansk, Gdansk, Poland
| | - Anna Masiak
- Department of Internal Medicine, Connective Tissue Diseases and Geriatrics, Medical University of Gdansk, Gdansk, Poland
| | - Maria Majdan
- Department of Rheumatology and Connective Tissue Diseases, Medical University of Lublin, Lublin, Poland
| | - Radosław Jeleniewicz
- Department of Rheumatology and Connective Tissue Diseases, Medical University of Lublin, Lublin, Poland
| | | | - Katarzyna Jakuszko
- Department of Nephrology and Transplantation Medicine, Wroclaw Medical University, Wroclaw, Poland
| | - Magdalena Krajewska
- Department of Nephrology and Transplantation Medicine, Wroclaw Medical University, Wroclaw, Poland
| | - Alicja Dębska-Ślizień
- Department of Nephrology, Transplantology and Internal Diseases, Medical University of Gdansk, Gdansk, Poland
| | - Hanna Storoniak
- Department of Nephrology, Transplantology and Internal Diseases, Medical University of Gdansk, Gdansk, Poland
| | - Barbara Bułło-Piontecka
- Department of Nephrology, Transplantology and Internal Diseases, Medical University of Gdansk, Gdansk, Poland
| | - Witold Tłustochowicz
- Department of Internal Medicine and Rheumatology, Military Medical Institute, Warsaw, Poland
| | - Joanna Kur-Zalewska
- Department of Internal Medicine and Rheumatology, Military Medical Institute, Warsaw, Poland
| | - Małgorzata Wisłowska
- Department of Rheumatology, National Institute of Geriatrics, Rheumatology and Rehabilitation, Warsaw, Poland
| | - Piotr Głuszko
- Department of Rheumatology, National Institute of Geriatrics, Rheumatology and Rehabilitation, Warsaw, Poland
| | - Marta Madej
- Department of Rheumatology and Internal Medicine, Wroclaw Medical University, Wroclaw, Poland
| | - Ewa Jassem
- Department of Allergology, Medical University of Gdansk, Gdansk, Poland
| | | | - Eugeniusz Kucharz
- Department of Internal Medicine, Rheumatology and Clinical Immunology, Medical University of Silesia, Katowice, Poland
| | - Marek Brzosko
- Department of Rheumatology, Internal Medicine, Diabetology, Geriatrics and Clinical Immunology with the Gastroenterology Unit, Pomeranian Medical University in Szczecin, Szczecin, Poland
| | - Marcin Milchert
- Department of Rheumatology, Internal Medicine, Diabetology, Geriatrics and Clinical Immunology with the Gastroenterology Unit, Pomeranian Medical University in Szczecin, Szczecin, Poland
| | - Anna Hawrot-Kawecka
- Department of Internal Medicine and Metabolic Diseases, Medical University of Silesia, Katowice, Poland
| | | | - Paweł Górski
- Department of Pneumology, Chair of Internal Medicine, Medical University of Lodz, Lodz, Poland
| | | | - Joanna Makowska
- Department of Rheumatology, Medical University of Lodz, Lodz, Poland
| | - Joanna Zalewska
- Department of Rheumatology and Connective Tissue Diseases, Ludwik Rydygier Collegium Medicum in Bydgoszcz of the Nicolaus Copernicus University in Torun, Bydgoszcz, Poland
| | - Lech Zaręba
- Institute of Computer Science, College of Natural Sciences, University of Rzeszow, Rzeszow, Poland
| | - Stanisława Bazan-Socha
- 2nd Department of Internal Medicine, Jagiellonian University Medical College, Cracow, Poland
| |
Collapse
|
7
|
Papadopoulos NG, Custovic A, Deschildre A, Gern JE, Nieto Garcia A, Miligkos M, Phipatanakul W, Wong G, Xepapadaki P, Agache I, Arasi S, Awad El-Sayed Z, Bacharier LB, Bonini M, Braido F, Caimmi D, Castro-Rodriguez JA, Chen Z, Clausen M, Craig T, Diamant Z, Ducharme FM, Ebisawa M, Eigenmann P, Feleszko W, Fierro V, Fiocchi A, Garcia-Marcos L, Goh A, Gómez RM, Gotua M, Hamelmann E, Hedlin G, Hossny EM, Ispayeva Z, Jackson DJ, Jartti T, Jeseňák M, Kalayci O, Kaplan A, Konradsen JR, Kuna P, Lau S, Le Souef P, Lemanske RF, Levin M, Makela MJ, Mathioudakis AG, Mazulov O, Morais-Almeida M, Murray C, Nagaraju K, Novak Z, Pawankar R, Pijnenburg MW, Pite H, Pitrez PM, Pohunek P, Price D, Priftanji A, Ramiconi V, Rivero Yeverino D, Roberts G, Sheikh A, Shen KL, Szepfalusi Z, Tsiligianni I, Turkalj M, Turner S, Umanets T, Valiulis A, Vijveberg S, Wang JY, Winders T, Yon DK, Yusuf OM, Zar HJ. Recommendations for asthma monitoring in children: A PeARL document endorsed by APAPARI, EAACI, INTERASMA, REG, and WAO. Pediatr Allergy Immunol 2024; 35:e14129. [PMID: 38664926 DOI: 10.1111/pai.14129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 03/22/2024] [Accepted: 03/25/2024] [Indexed: 05/08/2024]
Abstract
Monitoring is a major component of asthma management in children. Regular monitoring allows for diagnosis confirmation, treatment optimization, and natural history review. Numerous factors that may affect disease activity and patient well-being need to be monitored: response and adherence to treatment, disease control, disease progression, comorbidities, quality of life, medication side-effects, allergen and irritant exposures, diet and more. However, the prioritization of such factors and the selection of relevant assessment tools is an unmet need. Furthermore, rapidly developing technologies promise new opportunities for closer, or even "real-time," monitoring between visits. Following an approach that included needs assessment, evidence appraisal, and Delphi consensus, the PeARL Think Tank, in collaboration with major international professional and patient organizations, has developed a set of 24 recommendations on pediatric asthma monitoring, to support healthcare professionals in decision-making and care pathway design.
Collapse
Affiliation(s)
- Nikolaos G Papadopoulos
- Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, The University of Manchester, Manchester, UK
- Allergy Department, 2nd Paediatric Clinic, National and Kapodistrian University of Athens, Athens, Greece
| | - Adnan Custovic
- Department of Pediatrics, Imperial College London, London, UK
| | - Antoine Deschildre
- Univ. Lille, Pediatric Pulmonology and Allergy Department, Hôpital Jeanne de Flandre, CHU Lille, Lille cedex, France
| | - James E Gern
- Department of Pediatrics and Medicine, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, USA
| | - Antonio Nieto Garcia
- Pediatric Pulmonology & Allergy Unit Children's Hospital la Fe, Health Research Institute La Fe, Valencia, Spain
| | - Michael Miligkos
- Allergy Department, 2nd Paediatric Clinic, National and Kapodistrian University of Athens, Athens, Greece
| | - Wanda Phipatanakul
- Children's Hospital Boston, Pediatric Allergy and Immunology, Boston, Massachusetts, USA
| | - Gary Wong
- Department of Pediatrics, Faculty of Medicine, The Chinese University of Hong Kong, Sha Tin, Hong Kong
| | - Paraskevi Xepapadaki
- Allergy Department, 2nd Paediatric Clinic, National and Kapodistrian University of Athens, Athens, Greece
| | - Ioana Agache
- Allergy & Clinical Immunology, Transylvania University, Brasov, Romania
| | - Stefania Arasi
- Allergy Department, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Zeinab Awad El-Sayed
- Pediatric Allergy, Immunology and Rheumatology Unit, Children's Hospital, Ain Shams University, Cairo, Egypt
| | - Leonard B Bacharier
- Division of Allergy, Immunology, and Pulmonary Medicine, Department of Pediatrics, Monroe Carell Jr Children's Hospital at Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Matteo Bonini
- Department of Cardiovascular and Pulmonary Sciences, Università Cattolica del Sacro Cuore, Rome, Italy
- National Heart and Lung Institute (NHLI), Imperial College London, London, UK
| | - Fulvio Braido
- University of Genoa, Genoa, Italy
- Respiratory Diseases and Allergy Department, Research Institute and Teaching Hospital San Martino, Genoa, Italy
- Interasma - Global Asthma Association (GAA)
| | - Davide Caimmi
- Allergy Unit, CHU de Montpellier, Montpellier, France
- IDESP, UA11 INSERM-Universitè de Montpellier, Montpellier, France
| | - Jose A Castro-Rodriguez
- Department of Pediatrics Pulmonology, School of Medicine, Pontifical Universidad Catolica de Chile, Santiago, Chile
| | - Zhimin Chen
- Pulmonology Department, Children's Hospital Zhejiang University School of Medicine, Hangzhou, China
| | - Michael Clausen
- Children's Hospital, Landspitali University Hospital, Reykjavik, Iceland
| | - Timothy Craig
- Department of Allergy and Immunology, Penn State University, Hershey, Pennsylvania, USA
- Vinmec International Hospital, Hanoi, Vietnam
| | - Zuzana Diamant
- Department of Clinical Pharmacy & Pharmacology, University of Groningen, University Medical Center of Groningen and QPS-NL, Groningen, The Netherlands
- Department of Pediatrics and of Social and Preventive Medicine, University of Montreal, Montreal, Québec, Canada
| | - Francine M Ducharme
- National Hospital Organization Sagamihara National Hospital, Sagamihara, Kanagawa, Japan
| | - Motohiro Ebisawa
- Department of Women-Children-Teenagers, University Hospital of Geneva, Geneva, Switzerland
| | - Philippe Eigenmann
- Department of Pediatric Respiratory Diseases and Allergy, The Medical University of Warsaw, Warsaw, Poland
| | - Wojciech Feleszko
- Pediatric Respiratory and Allergy Units, "Virgen de la Arrixaca" Children's University Clinical Hospital, University of Murcia, Murcia, Spain
| | - Vincezo Fierro
- Allergy Department, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Alessandro Fiocchi
- Allergy Department, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Luis Garcia-Marcos
- Department of Pediatrics, Respiratory Medicine Service, KK Women's and Children's Hospital, Singapore City, Singapore
| | - Anne Goh
- Faculty of Health Sciences, Catholic University of Salta, Salta, Argentina
| | | | - Maia Gotua
- Children's Center Bethel, Evangelical Hospital Bethel, University of Bielefeld, Bielefeld, Germany
| | - Eckard Hamelmann
- Paediatric Allergy, Centre for Allergy Research, Karolinska Institutet, Solna, Sweden
| | - Gunilla Hedlin
- Department of Allergology and Clinical Immunology, Kazakh National Medical University, Almaty, Kazakhstan
| | - Elham M Hossny
- Pediatric Allergy, Immunology and Rheumatology Unit, Children's Hospital, Ain Shams University, Cairo, Egypt
| | - Zhanat Ispayeva
- Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, USA
| | - Daniel J Jackson
- Department of Pediatrics, Turku University Hospital and University of Turku, Turku, Finland
| | - Tuomas Jartti
- Department of Pediatrics, Jessenius Faculty of Medicine in Martin, Center for Vaccination in Special Situations, University Hospital in Martin, Comenius University in Bratislava, Bratislava, Slovakia
| | - Miloš Jeseňák
- Department of Clinical Immunology and Allergology, Jessenius Faculty of Medicine in Martin, Center for Vaccination in Special Situations, University Hospital in Martin, Comenius University in Bratislava, Bratislava, Slovakia
- Pediatric Allergy and Asthma Unit, Hacettepe University School of Medicine, Ankara, Turkey
| | - Omer Kalayci
- Chair Family Physician Airways Group of Canada, Ontario, Canada
| | - Alan Kaplan
- Astrid Lindgren Children's Hospital, Karolinska University Hospital, Stockholm, Sweden
| | - Jon R Konradsen
- Department of Internal Medicine, Asthma and Allergy, Medical University of Lodz, Lodz, Poland
| | - Piotr Kuna
- Charité Universitätsmedizin Berlin, Pediatric Respiratpry Medicine, Immunology and Intensive Care Medicine, Berlin, Germany
| | - Susanne Lau
- School of Medicine, University of Western Australia, Perth, Western Australia, Australia
| | - Peter Le Souef
- Department of Pediatrics and Medicine, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, USA
| | - Robert F Lemanske
- Division of Paediatric Allergy, Department of Paediatrics, University of Cape Town, Cape Town, South Africa
| | - Michael Levin
- inVIVO Planetary Health Group of the Worldwide Universities Network
- Department of Allergy, Helsinki University Central Hospital, Helsinki, Finland
| | - Mika J Makela
- North West Lung Centre, Wythenshawe Hospital, Manchester University NHS Foundation Trust, Manchester, UK
| | - Alexander G Mathioudakis
- Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, The University of Manchester, Manchester, UK
- First Pediatric Department of Pediatrics, National Pirogov Memorial Medical University, Vinnytsia Children's Regional Hospital, Vinnytsia Oblast, Ukraine
| | | | | | - Clare Murray
- Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, The University of Manchester, Manchester, UK
| | | | - Zoltan Novak
- Department of Pediatrics, Nippon Medical School, Tokyo, Japan
| | - Ruby Pawankar
- Division of Respiratory Medicine and Allergology, Department of Pediatrics, Erasmus University Medical Centre - Sophia Children's Hospital, Rotterdam, The Netherlands
| | - Marielle W Pijnenburg
- Allergy Center, CUF Descobertas Hospital and CUF Tejo HospitalInfante Santo Hospital, Lisbon, Portugal
| | - Helena Pite
- NOVA Medical School, Universidade NOVA de Lisboa, Lisbon, Portugal
- Pulmonary Division, Hospital Santa Casa de Porto Alegre, Porto Alegre, Brazil
| | - Paulo M Pitrez
- Pediatric Pulmonology, Pediatric Department, 2nd Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Petr Pohunek
- University Hospital Motol, Prague, Czech Republic
| | - David Price
- Division of Applied Health Sciences, Centre of Academic Primary Care, University of Aberdeen, Aberdeen, UK
- Observational and Pragmatic Research Institute, Singapore City, Singapore
| | - Alfred Priftanji
- Department of Allergy, Mother Theresa School of Medicine, University of Tirana, Tirana, Albania
| | - Valeria Ramiconi
- The European Federation of Allergy and Airways Diseases Patients' Associations (EFA), Brussels, Belgium
| | | | - Graham Roberts
- Paediatric Allergy and Respiratory Medicine within Medicine at the University of Southampton, Southampton, UK
| | - Aziz Sheikh
- Asthma UK Centre for Applied Research, Usher Institute of Population Health Sciences and Informatics, The University of Edinburgh, Edinburgh, UK
| | - Kun-Ling Shen
- Department of Respiratory Medicine, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, China
| | - Zsolt Szepfalusi
- Division of Pediatric Pulmonology, Allergy and Endocrinologyneumology, Department of Pediatrics and Juvenile Medicine, Comprehensive Center Pediatrics, Medical University of Vienna, Vienna, Austria
| | - Ioanna Tsiligianni
- Health Planning Unit, Department of Social Medicine, Faculty of Medicine, University of Crete, Crete, Greece
| | | | - Steve Turner
- Medical School of Catholic University of Croatia, Zagreb, Croatia
| | - Tetiana Umanets
- Child Health, Royal Aberdeen Children's Hospital and University of Aberdeen, Aberdeen, UK
- Department of Respiratory Diseases and Respiratory Allergy in Children, SI "Institute of Pediatrics, Obstetrics and Gynecology named after Academician O. Lukjanova of NAMS of Ukraine, Kyiv, Ukraine
| | - Arunas Valiulis
- Clinic of Children's Diseases, Institute of Clinical Medicine, Medical Faculty of Vilnius University, Vilnius, Lithuania
| | - Susanne Vijveberg
- Department of Paediatric Pulmonology, Amsterdam Public Health Research Institute, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
| | - Jiu-Yao Wang
- China Medical University Children's Hospital Taichung, Taichung, Taiwan
| | | | - Dong Keon Yon
- Department of Pediatrics, Kyung Hee University Medical Center, Kyung Hee University College of Medicine, Seoul, South Korea
| | | | - Heather J Zar
- Department of Pediatrics & Child Health, Director MRC Unit on Child & Adolescent Health, Red Cross War Memorial Children's Hospital, University of Cape Town, Cape Town, South Africa
| |
Collapse
|
8
|
Covar R, Lazarus SC, Krishnan JA, Blake KV, Sorkness CA, Dyer AM, Lang JE, Lugogo NL, Mauger DT, Wechsler ME, Wenzel SE, Cardet JC, Castro M, Israel E, Phipatanakul W, King TS. Association of Sputum Eosinophilia With Easily Measured Type-2 Inflammatory Biomarkers in Untreated Mild Persistent Asthma. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. IN PRACTICE 2024; 12:960-969.e6. [PMID: 38097180 DOI: 10.1016/j.jaip.2023.12.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 09/26/2023] [Accepted: 12/05/2023] [Indexed: 02/12/2024]
Abstract
BACKGROUND A multicenter clinical trial in patients with mild persistent asthma indicated that response to inhaled corticosteroids (ICS) is limited to those with sputum eosinophilia. However, testing for sputum eosinophilia is impractical in most clinical settings. OBJECTIVE We examined associations between sputum eosinophilia and type 2 inflammatory biomarkers in untreated mild persistent asthma. METHODS Induced sputum, blood eosinophil count (BEC), fractional exhaled nitric oxide (FeNO), and serum periostin were obtained twice during the 6-week run-in period in a clinical trial that enrolled patients 12 years and older with symptomatic, mild persistent asthma without controller therapy. The optimal threshold for each biomarker was based on achieving 80% or greater sensitivity. Performance of biomarkers (area under the receiver operating characteristics curve [AUC], range 0.0-1.0) in predicting sputum eosinophilia 2% or greater was determined; AUCs of 0.8 to 0.9 and more than 0.9 define excellent and outstanding discrimination, respectively. RESULTS Of 564 participants, 27% were sputum eosinophilic, 83% were atopic, 70% had BEC of 200/uL or higher or FeNO of 25 ppb or greater; 64% of participants without sputum eosinophilia had elevated BEC or FeNO. The AUCs for BEC, FeNO, and both together in predicting sputum eosinophilia were all below the threshold for excellent discrimination (AUC 0.75, 0.78, and 0.79, respectively). Periostin (in adults) had poor discrimination (AUC 0.59; P = .02). CONCLUSIONS In untreated mild persistent asthma, there is substantial discordance between sputum eosinophilia, BEC, and FeNO. Until prospective trials test the ability of alternative biomarkers to predict ICS response, BEC or FeNO phenotyping may be an option to consider ICS through a shared decision-making process with consideration of other clinical features.
Collapse
Affiliation(s)
- Ronina Covar
- Department of Pediatrics, National Jewish Health, Denver, Colo.
| | - Stephen C Lazarus
- Department of Medicine, University of California, San Francisco, Calif
| | - Jerry A Krishnan
- Departments of Medicine and Public Health, University of Illinois Chicago, Chicago, Ill
| | - Kathryn V Blake
- Center for Pharmacogenomics and Translational Research, Nemours Children's Health, Jacksonville, Fla
| | - Christine A Sorkness
- Department of Medicine and School of Pharmacy, University of Wisconsin, Madison, Wis
| | - Anne-Marie Dyer
- Department of Public Health Sciences, Pennsylvania State University, Hershey, Pa
| | - Jason E Lang
- Department of Pediatrics, Duke University School of Medicine, Durham, NC
| | - Njira L Lugogo
- Department of Medicine, University of Michigan, Ann Arbor, Mich
| | - David T Mauger
- Department of Public Health Sciences, Pennsylvania State University, Hershey, Pa
| | | | - Sally E Wenzel
- Department of Medicine, University of Pittsburgh, Pittsburgh, Pa
| | | | - Mario Castro
- Department of Medicine, University of Kansas School of Medicine, Kansas City, Kan
| | - Elliot Israel
- Department of Medicine, Harvard Medical School Brigham & Women's Hospital, Boston, Mass
| | | | - Tonya S King
- Department of Public Health Sciences, Pennsylvania State University, Hershey, Pa
| |
Collapse
|
9
|
Lommatzsch M, Nair P, Virchow JC. Normal Blood Eosinophil Counts in Humans. Respiration 2024; 103:214-216. [PMID: 38354723 PMCID: PMC10997252 DOI: 10.1159/000537833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2024] [Accepted: 02/12/2024] [Indexed: 02/16/2024] Open
Affiliation(s)
- Marek Lommatzsch
- Department of Pneumology, University of Rostock, Rostock, Germany
| | | | | |
Collapse
|
10
|
Chen W, Ran S, Li C, Li Z, Wei N, Li J, Li N. Elevated Eosinophil Counts in Acute Exacerbations of Bronchiectasis: Unveiling a Distinct Clinical Phenotype. Lung 2024; 202:53-61. [PMID: 38228883 PMCID: PMC10896926 DOI: 10.1007/s00408-023-00668-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Accepted: 12/18/2023] [Indexed: 01/18/2024]
Abstract
BACKGROUND Non-cystic fibrosis bronchiectasis is a chronic respiratory disease characterized by bronchial dilation. However, the significance of elevated eosinophil counts in acute exacerbations of bronchiectasis remains unclear. METHODS This retrospective case-control study included 169 hospitalized patients with acute exacerbations of non-cystic fibrosis bronchiectasis. Based on blood eosinophil levels, patients were categorized into eosinophilic and non-eosinophilic bronchiectasis groups. Various clinical variables, including lung function, comorbidities and clinical features were collected for analysis. The study aimed to examine the differences between these groups and their clinical phenotypes. RESULTS Eosinophilic bronchiectasis (EB) was present in approximately 22% of all hospitalized patients with bronchiectasis, and it was more prevalent among male smokers (P < 0.01). EB exhibited greater severity of bronchiectasis, including worse airway obstruction, higher scores in the E-FACED (FACED combined with exacerbations) and bronchiectasis severity index (BSI), a high glucocorticoids medication possession ratio, and increased hospitalization cost (P < 0.05 or P < 0.01). Furthermore, we observed a significant positive correlation between blood eosinophil count and both sputum eosinophils (r = 0.49, P < 0.01) and serum total immunoglobulin E levels (r = 0.21, P < 0.05). Additional analysis revealed that patients with EB had a higher frequency of shortness of breath (P < 0.05), were more likely to have comorbid sinusitis (P < 0.01), and exhibited a greater number of lung segments affected by bronchiectasis (P < 0.01). CONCLUSIONS These findings suggest that EB presents a distinct pattern of bronchiectasis features, confirming the notion that it is a specific phenotype.
Collapse
Affiliation(s)
- Weixin Chen
- Department of Chinese and Western Medicine in Clinical Medicine, The Clinical School of Chinese and Western Medicine of Guangzhou Medical University, Guangzhou, People's Republic of China
| | - Siyi Ran
- Department of Chinese and Western Medicine in Clinical Medicine, The Clinical School of Chinese and Western Medicine of Guangzhou Medical University, Guangzhou, People's Republic of China
| | - Chenchang Li
- Department of Chinese and Western Medicine in Clinical Medicine, The Clinical School of Chinese and Western Medicine of Guangzhou Medical University, Guangzhou, People's Republic of China
| | - Zhixin Li
- Department of Chinese and Western Medicine in Clinical Medicine, The Clinical School of Chinese and Western Medicine of Guangzhou Medical University, Guangzhou, People's Republic of China
| | - Nili Wei
- State Key Laboratory of Respiratory Disease, Department of Allergy and Clinical Immunology, National Center for Respiratory Medicine, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, People's Republic of China
| | - Jing Li
- State Key Laboratory of Respiratory Disease, Department of Allergy and Clinical Immunology, National Center for Respiratory Medicine, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, People's Republic of China
| | - Naijian Li
- State Key Laboratory of Respiratory Disease, Department of Allergy and Clinical Immunology, National Center for Respiratory Medicine, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, People's Republic of China.
- Johns Hopkins Asthma & Allergy Center, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
| |
Collapse
|
11
|
Gueçamburu M, Zysman M. [Biologic agents in COPD management]. Rev Mal Respir 2024; 41:127-138. [PMID: 38129268 DOI: 10.1016/j.rmr.2023.11.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Accepted: 11/08/2023] [Indexed: 12/23/2023]
Abstract
Chronic obstructive pulmonary disease (COPD) is a frequently occurring disease entailing high morbidity and mortality, and relevant therapeutic resources are limited. As is the case with asthma, the current trend consists in the phenotyping of COPD patients so as to develop personalized medicine tailored to a given individual's inflammatory profile. The aim of this review is to summarize the role of biologic agents in the management of COPD, taking into consideration not only COPD pathophysiology, but also the previously published studies and the relatively encouraging prospects for the future.
Collapse
Affiliation(s)
- M Gueçamburu
- Service des maladies respiratoires, CHU de Bordeaux, Centre François-Magendie, hôpital Haut-Lévêque, hôpital Haut Lévèque, avenue de Magellan, 33604 Pessac, France.
| | - M Zysman
- Service des maladies respiratoires, CHU de Bordeaux, Centre François-Magendie, hôpital Haut-Lévêque, hôpital Haut Lévèque, avenue de Magellan, 33604 Pessac, France; U1045, CIC 1401, Univ-Bordeaux, Centre de Recherche cardio-thoracique de Bordeaux, 33604 Pessac, France
| |
Collapse
|
12
|
Li H, Li X. Genetic relationships between high blood eosinophil count, asthma susceptibility, and asthma severity. J Asthma 2024; 61:119-131. [PMID: 37560908 DOI: 10.1080/02770903.2023.2247490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 07/30/2023] [Accepted: 08/09/2023] [Indexed: 08/11/2023]
Abstract
OBJECTIVE Genetic relationships between blood eosinophil count (BEC), asthma susceptibility, and severity are unclear. We sought to identify the genetic difference between type 2 (T2) and nontype 2 (non-T2) asthma (defined by BEC) and investigate genetic relationships between high BEC, asthma susceptibility, and severity. METHODS Genome-wide association studies (GWASs) were performed for T2 (n = 9,064; BEC ≥ 300 cells/μL) versus non-T2 asthma (n = 14,379; BEC < 150 cells/μL) and asthma susceptibility (37,227 asthmatics vs. 124,132 nonasthma controls) in the UK Biobank and asthma severity (moderate-to-severe asthma [n = 2,153] vs. mild asthma [n = 5165]) in the All of Us Research Program (AoURP). Genetic causality between BEC, asthma susceptibility, and severity were dissected using Mendelian randomization (MR). RESULTS High BEC was associated with asthma and decreased pulmonary function. GWASs revealed four sets of genetic variants (p < 5 × 10-8): genes associated with only BEC or asthma and genes associated with high BEC and asthma in the same or opposite direction. The C allele of rs653178 in ATXN2 was associated with high BEC, risk for autoimmune diseases, and protection for asthma. Genetic variants associated with BEC or asthma were not associated with asthma severity. MR indicated high BEC and asthma were in bidirectional causal relationship (p < .001); however, they were not causal for asthma severity. CONCLUSIONS Genetic variants associated with asthma or BEC and asthma severity are distinctive. High BEC is a risk factor for asthma; however, it is neither necessary nor sufficient for asthma susceptibility and severity.
Collapse
Affiliation(s)
- Huashi Li
- Statistics Consulting Lab, BIO5 Institute, University of Arizona, Tucson, AZ, USA
- Division of Genetics, Genomics and Precision Medicine, Department of Medicine, University of Arizona College of Medicine, Tucson, AZ, USA
| | - Xingnan Li
- Division of Genetics, Genomics and Precision Medicine, Department of Medicine, University of Arizona College of Medicine, Tucson, AZ, USA
| |
Collapse
|
13
|
D’Aiuto V, Mormile I, Granata F, Romano A, Della Casa F, D’Onofrio C, Marzio V, Mignogna G, Califano L, de Paulis A, Rossi FW. Eosinophilic Patterns in Patients with Seasonal Allergy Affected by Bronchial Asthma and Rhinitis/Rhinosinusitis: Efficacy of Benralizumab in Patients with the Persistent Pattern. J Clin Med 2024; 13:754. [PMID: 38337448 PMCID: PMC10856349 DOI: 10.3390/jcm13030754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 01/19/2024] [Accepted: 01/26/2024] [Indexed: 02/12/2024] Open
Abstract
BACKGROUND Eosinophilia can be influenced by multiple factors. This study aims to set a protocol for monitoring blood absolute eosinophil count (AEC) in patients with seasonal allergy affected by bronchial asthma (BA), allergic rhinitis (AR), or chronic rhinosinusitis with or without nasal polyposis (CRSw/sNP). METHODS We planned a total of four annual blood samples to measure AEC in- and out-seasonal pollen exposure (i.e., one measurement every three months for one year). RESULTS We identified two distinct groups of patients (non-eosinophilic and eosinophilic). Patients in the eosinophilic group presented with four different patterns (episodic, transient, floating, and persistent). Most patients with episodic, transient, and floating patterns were affected by mild allergy and the increase in eosinophils was related to allergen exposure. In contrast, patients with the persistent pattern mostly presented with more severe allergy (i.e., severe BA and relapsing CRSwNP) and the eosinophilia was unrelated to allergen exposure. The subgroup of patients with severe BA, relapsing CRSwNP, and persistent eosinophilc pattern were treated with benralizumab, which induced a noteworthy improvement in both severe BA and CRSwNP. CONCLUSIONS Multiple AEC measurements in patients with seasonal allergy can better reflect patient's eosinophilic status and help define the relationship of AEC enhancement with allergen exposure.
Collapse
Affiliation(s)
- Valentina D’Aiuto
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (V.D.); (F.G.); (F.D.C.); (A.d.P.); (F.W.R.)
| | - Ilaria Mormile
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (V.D.); (F.G.); (F.D.C.); (A.d.P.); (F.W.R.)
| | - Francescopaolo Granata
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (V.D.); (F.G.); (F.D.C.); (A.d.P.); (F.W.R.)
| | - Antonio Romano
- Head and Neck Section, Department of Neurosciences, Reproductive and Odontostomatological Science, University of Naples Federico II, 80131 Naples, Italy; (A.R.); (L.C.)
| | - Francesca Della Casa
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (V.D.); (F.G.); (F.D.C.); (A.d.P.); (F.W.R.)
| | - Caterina D’Onofrio
- Post-Graduate Program in Clinical Immunology and Allergy, University of Naples Federico II, 80131 Naples, Italy; (C.D.); (V.M.); (G.M.)
| | - Valentina Marzio
- Post-Graduate Program in Clinical Immunology and Allergy, University of Naples Federico II, 80131 Naples, Italy; (C.D.); (V.M.); (G.M.)
| | - Gabriele Mignogna
- Post-Graduate Program in Clinical Immunology and Allergy, University of Naples Federico II, 80131 Naples, Italy; (C.D.); (V.M.); (G.M.)
| | - Luigi Califano
- Head and Neck Section, Department of Neurosciences, Reproductive and Odontostomatological Science, University of Naples Federico II, 80131 Naples, Italy; (A.R.); (L.C.)
| | - Amato de Paulis
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (V.D.); (F.G.); (F.D.C.); (A.d.P.); (F.W.R.)
- Center for Basic and Clinical Immunology Research (CISI), WAO Center of Excellence, University of Naples Federico II, 80131 Naples, Italy
| | - Francesca Wanda Rossi
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy; (V.D.); (F.G.); (F.D.C.); (A.d.P.); (F.W.R.)
- Center for Basic and Clinical Immunology Research (CISI), WAO Center of Excellence, University of Naples Federico II, 80131 Naples, Italy
| |
Collapse
|
14
|
Naharro-González S, Lorente-Sorolla C, Rodrigo-Muñoz JM, Valverde-Monge M, Pinillos-Robles EJ, Betancor D, Fernández-Nieto M, Sánchez-Mellado D, Gil-Martínez M, Santillán-Coello JM, Villacampa-Aubá JM, Mahillo-Fernandez I, Herrero-González A, Perez-González A, Rodríguez-Nieto MJ, del Pozo V. Moderate-High Blood Eosinophilia Is Associated with Increased Hospitalization and Other Asthma Comorbidities. Biomolecules 2024; 14:126. [PMID: 38254726 PMCID: PMC10813157 DOI: 10.3390/biom14010126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 01/12/2024] [Accepted: 01/17/2024] [Indexed: 01/24/2024] Open
Abstract
(1) Background: Eosinophilia has traditionally been linked to eosinophilic asthma, for which it is the gold-standard prognostic biomarker. However, the association between eosinophilia and the presence of other diseases and comorbidities is yet unclear. (2) Methods: For this retrospective study, we reviewed the electronic medical records of 49,909 subjects with blood eosinophilia to gather data on the presence of asthma, COPD, sleep apnea, tuberculosis, dyslipidemia, hypertension, and other cardiovascular diseases and severe CRSwNP among these subjects. Demographic features including age, sex, and smoking habits were collected, as well as the number of hospitalizations and emergency department visits. T-tests, ANOVA, Fisher test, and logistic regression models were used. (3) Results: For all age groups studied, eosinophilia was significantly more prevalent among asthmatic subjects than nonasthmatics, especially in patients also presenting CRSwNP, hypertension, and dyslipidemia. The likelihood of developing asthma, COPD, and CRSwNP, and hospitalization, was increased when BEC was above 600 eosinophils/μL. The association between asthma, CRSwNP, and BEC was corroborated by multiple logistic regressions models. (4) Conclusions: We demonstrated the association of having over 600 blood eosinophils/μL with a higher number of hospitalizations and comorbidities (CRSwNP and COPD), which proves that BEC is a highly useful parameter to consider in subjects who present blood eosinophilia.
Collapse
Affiliation(s)
- Sara Naharro-González
- Immunoallergy Laboratory, Immunology Department, Fundación Jimenez Díaz Health Research Institute (IIS-FJD, UAM), 28040 Madrid, Spain; (S.N.-G.); (C.L.-S.); (J.M.R.-M.); (M.G.-M.)
| | - Clara Lorente-Sorolla
- Immunoallergy Laboratory, Immunology Department, Fundación Jimenez Díaz Health Research Institute (IIS-FJD, UAM), 28040 Madrid, Spain; (S.N.-G.); (C.L.-S.); (J.M.R.-M.); (M.G.-M.)
| | - José Manuel Rodrigo-Muñoz
- Immunoallergy Laboratory, Immunology Department, Fundación Jimenez Díaz Health Research Institute (IIS-FJD, UAM), 28040 Madrid, Spain; (S.N.-G.); (C.L.-S.); (J.M.R.-M.); (M.G.-M.)
- CIBER of Respiratory Diseases (CIBERES), Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain; (M.V.-M.); (D.B.)
| | - Marcela Valverde-Monge
- CIBER of Respiratory Diseases (CIBERES), Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain; (M.V.-M.); (D.B.)
- Allergy Department, Fundación Jiménez Díaz University Hospital, 28040 Madrid, Spain;
| | - Erwin Javier Pinillos-Robles
- Pulmonology Unit, Fundación Jiménez Díaz University Hospital, 28040 Madrid, Spain; (E.J.P.-R.); (D.S.-M.); (M.J.R.-N.)
| | - Diana Betancor
- CIBER of Respiratory Diseases (CIBERES), Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain; (M.V.-M.); (D.B.)
- Allergy Department, Fundación Jiménez Díaz University Hospital, 28040 Madrid, Spain;
| | - Mar Fernández-Nieto
- Allergy Department, Fundación Jiménez Díaz University Hospital, 28040 Madrid, Spain;
| | - Diana Sánchez-Mellado
- Pulmonology Unit, Fundación Jiménez Díaz University Hospital, 28040 Madrid, Spain; (E.J.P.-R.); (D.S.-M.); (M.J.R.-N.)
| | - Marta Gil-Martínez
- Immunoallergy Laboratory, Immunology Department, Fundación Jimenez Díaz Health Research Institute (IIS-FJD, UAM), 28040 Madrid, Spain; (S.N.-G.); (C.L.-S.); (J.M.R.-M.); (M.G.-M.)
- CIBER of Respiratory Diseases (CIBERES), Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain; (M.V.-M.); (D.B.)
| | - Jessica Mireya Santillán-Coello
- ENT and Cervicofacial Surgery Department, Fundación Jiménez Díaz University Hospital, 28040 Madrid, Spain; (J.M.S.-C.); (J.M.V.-A.)
| | - José Miguel Villacampa-Aubá
- ENT and Cervicofacial Surgery Department, Fundación Jiménez Díaz University Hospital, 28040 Madrid, Spain; (J.M.S.-C.); (J.M.V.-A.)
| | | | - Antonio Herrero-González
- Data Analysis Department, I Fundación Jimenez Díaz Health Research Institute (IIS-FJD, UAM), Fundación Jiménez Díaz University Hospital, 28040 Madrid, Spain; (A.H.-G.); (A.P.-G.)
| | - Alejandro Perez-González
- Data Analysis Department, I Fundación Jimenez Díaz Health Research Institute (IIS-FJD, UAM), Fundación Jiménez Díaz University Hospital, 28040 Madrid, Spain; (A.H.-G.); (A.P.-G.)
| | - María Jesús Rodríguez-Nieto
- Pulmonology Unit, Fundación Jiménez Díaz University Hospital, 28040 Madrid, Spain; (E.J.P.-R.); (D.S.-M.); (M.J.R.-N.)
- Villalba General University Hospital, 28400 Madrid, Spain
| | - Victoria del Pozo
- Immunoallergy Laboratory, Immunology Department, Fundación Jimenez Díaz Health Research Institute (IIS-FJD, UAM), 28040 Madrid, Spain; (S.N.-G.); (C.L.-S.); (J.M.R.-M.); (M.G.-M.)
- CIBER of Respiratory Diseases (CIBERES), Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain; (M.V.-M.); (D.B.)
- Department of Medicine, Autonomous University of Madrid, 28049 Madrid, Spain
| |
Collapse
|
15
|
van Geffen WH, Tan DJ, Walters JA, Walters EH. Inhaled corticosteroids with combination inhaled long-acting beta2-agonists and long-acting muscarinic antagonists for chronic obstructive pulmonary disease. Cochrane Database Syst Rev 2023; 12:CD011600. [PMID: 38054551 PMCID: PMC10698842 DOI: 10.1002/14651858.cd011600.pub3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/07/2023]
Abstract
BACKGROUND Management of chronic obstructive pulmonary disease (COPD) commonly involves a combination of long-acting bronchodilators including beta2-agonists (LABA) and muscarinic antagonists (LAMA). LABA and LAMA bronchodilators are now available in single-combination inhalers. In individuals with persistent symptoms or frequent exacerbations, inhaled corticosteroids (ICS) are also used with combination LABA and LAMA inhalers. However, the benefits and risks of adding ICS to combination LABA/LAMA inhalers as a triple therapy remain unclear. OBJECTIVES To assess the effects of adding an ICS to combination LABA/LAMA inhalers for the treatment of stable COPD. SEARCH METHODS We searched the Cochrane Airways Group Register of Trials, Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE, and Embase up to 30 November 2022. We also searched ClinicalTrials.gov and the WHO ICTRP up to 30 November 2022. SELECTION CRITERIA We included parallel-group randomised controlled trials of three weeks' duration or longer that compared the treatment of stable COPD with ICS in addition to combination LABA/LAMA inhalers against combination LABA/LAMA inhalers alone. DATA COLLECTION AND ANALYSIS We used standard Cochrane methodological procedures. The primary outcomes were acute exacerbations of COPD, respiratory health-related quality of life, pneumonia and other serious adverse events. The secondary outcomes were symptom scores, lung function, physical capacity, and mortality. We used GRADE to assess certainty of evidence for studies that contributed data to our prespecified outcomes. MAIN RESULTS Four studies with a total of 15,412 participants met the inclusion criteria. The mean age of study participants ranged from 64.4 to 65.3 years; the proportion of female participants ranged from 28% to 40%. Most participants had symptomatic COPD (COPD Assessment Test Score ≥ 10) with severe to very severe airflow limitation (forced expiratory volume in one second (FEV1) < 50% predicted) and one or more moderate-to-severe COPD exacerbations in the last 12 months. Trial medications differed amongst studies. The duration of follow-up was 52 weeks in three studies and 24 weeks in one study. We assessed the risk of selection, performance, and detection bias to be low in the included studies; one study was at high risk of attrition bias, and one study was at high risk of reporting bias. Triple therapy may reduce rates of moderate-to-severe COPD exacerbations compared to combination LABA/LAMA inhalers (rate ratio (RR) 0.74, 95% confidence interval (CI) 0.67 to 0.81; n = 15,397; low-certainty evidence). Subgroup analysis stratifying by blood eosinophil counts showed there may be a greater reduction in rate of moderate-to-severe COPD exacerbations with triple therapy in participants with high-eosinophils (RR 0.67, 95% CI 0.60 to 0.75) compared to low-eosinophils (RR 0.87, 95% CI 0.81 to 0.93) (test for subgroup differences: P < 0.01) (high/low cut-offs: 150 eosinophils/µL in three studies; 200 eosinophils/µL in one study). However, moderate-to-substantial heterogeneity was observed in both high- and low-eosinophil subgroups. These subgroup analyses are observational by nature and thus results should be interpreted with caution. Triple therapy may be associated with reduced rates of severe COPD exacerbations (RR 0.75, 95% CI 0.67 to 0.84; n = 14,131; low-certainty evidence). Triple therapy improved health-related quality of life assessed using the St George's Respiratory Questionnaire (SGRQ) by the minimal clinically important difference (MCID) threshold (4-point decrease) (35.3% versus 42.4%, odds ratio (OR) 1.35, 95% CI 1.26 to 1.45; n = 14,070; high-certainty evidence). Triple therapy may result in fewer symptoms measured using the Transition Dyspnoea Index (TDI) (OR 1.33, 95% CI 1.13 to 1.57; n = 3044; moderate-certainty evidence) and improved lung function as measured by change in trough FEV1 (mean difference 38.68 mL, 95% CI 22.58 to 54.77; n = 11,352; low-certainty evidence). However, these benefits fell below MCID thresholds for TDI (1-unit decrease) and trough FEV1 (100 mL), respectively. Triple therapy is probably associated with a higher risk of pneumonia as a serious adverse event compared to combination LABA/LAMA inhalers (3.3% versus 1.9%, OR 1.74, 95% CI 1.39 to 2.18; n = 15,412; moderate-certainty evidence). In contrast, all-cause serious adverse events may be similar between groups (19.7% versus 19.7%, OR 0.95, 95% CI 0.87 to 1.03; n = 15,412; low-certainty evidence). All-cause mortality may be lower with triple therapy (1.4% versus 2.0%, OR 0.70, 95% CI 0.54 to 0.90; n = 15,397; low-certainty evidence). AUTHORS' CONCLUSIONS The available evidence suggests that triple therapy may reduce rates of COPD exacerbations (low-certainty evidence) and results in an improvement in health-related quality of life (high-certainty evidence) compared to combination LABA/LAMA inhalers, but probably confers an increased pneumonia risk as a serious adverse event (moderate-certainty evidence). Triple therapy probably improves respiratory symptoms and may improve lung function (moderate- and low-certainty evidence, respectively); however, these benefits do not appear to be clinically significant. Triple therapy may reduce the risk of all-cause mortality compared to combination LABA/LAMA inhalers (low-certainty evidence). The certainty of the evidence was downgraded most frequently for inconsistency or indirectness. Across the four included studies, there were important differences in inclusion criteria, trial medications, and duration of follow-up. Investigation of heterogeneity was limited due to the small number of included studies. We found limited data on the effects of triple therapy compared to combination LABA/LAMA inhalers in patients with mild-moderate COPD and those without a recent exacerbation history.
Collapse
Affiliation(s)
- Wouter H van Geffen
- Department of Pulmonary Diseases, Medical Center Leeuwarden, Leeuwarden, Netherlands
| | - Daniel J Tan
- Allergy and Lung Health Unit, Melbourne School of Population and Global Health, University of Melbourne, Melbourne, Australia
| | | | - E Haydn Walters
- NHMRC Centre of Research Excellence for Chronic Respiratory Disease, School of Medicine, University of Tasmania, Hobart, Australia
| |
Collapse
|
16
|
Jesenak M, Diamant Z, Simon D, Tufvesson E, Seys SF, Mukherjee M, Lacy P, Vijverberg S, Slisz T, Sediva A, Simon HU, Striz I, Plevkova J, Schwarze J, Kosturiak R, Alexis NE, Untersmayr E, Vasakova MK, Knol E, Koenderman L. Eosinophils-from cradle to grave: An EAACI task force paper on new molecular insights and clinical functions of eosinophils and the clinical effects of targeted eosinophil depletion. Allergy 2023; 78:3077-3102. [PMID: 37702095 DOI: 10.1111/all.15884] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 08/21/2023] [Accepted: 08/27/2023] [Indexed: 09/14/2023]
Abstract
Over the past years, eosinophils have become a focus of scientific interest, especially in the context of their recently uncovered functions (e.g. antiviral, anti-inflammatory, regulatory). These versatile cells display both beneficial and detrimental activities under various physiological and pathological conditions. Eosinophils are involved in the pathogenesis of many diseases which can be classified into primary (clonal) and secondary (reactive) disorders and idiopathic (hyper)eosinophilic syndromes. Depending on the biological specimen, the eosinophil count in different body compartments may serve as a biomarker reflecting the underlying pathophysiology and/or activity of distinct diseases and as a therapy-driving (predictive) and monitoring tool. Personalized selection of an appropriate therapeutic strategy directly or indirectly targeting the increased number and/or activity of eosinophils should be based on the understanding of eosinophil homeostasis including their interactions with other immune and non-immune cells within different body compartments. Hence, restoring as well as maintaining homeostasis within an individual's eosinophil pool is a goal of both specific and non-specific eosinophil-targeting therapies. Despite the overall favourable safety profile of the currently available anti-eosinophil biologics, the effect of eosinophil depletion should be monitored from the perspective of possible unwanted consequences.
Collapse
Affiliation(s)
- Milos Jesenak
- Department of Clinical Immunology and Allergology, University Teaching Hospital in Martin, Martin, Slovak Republic
- Department of Paediatrics, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, University Teaching Hospital in Martin, Martin, Slovak Republic
- Department of Pulmonology and Phthisiology, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, University Teaching Hospital in Martin, Martin, Slovak Republic
| | - Zuzana Diamant
- Department of Clinical Sciences Lund, Respiratory Medicine, Allergology and Palliative Medicine, Lund University, Lund, Sweden
- Department Microbiology Immunology & Transplantation, KU Leuven, Catholic University of Leuven, Leuven, Belgium
- Department of Respiratory Medicine, First Faculty of Medicine, Charles University and Thomayer Hospital, Prague, Czech Republic
| | - Dagmar Simon
- Department of Dermatology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Ellen Tufvesson
- Department of Clinical Sciences Lund, Respiratory Medicine, Allergology and Palliative Medicine, Lund University, Lund, Sweden
| | - Sven F Seys
- Laboratory of Clinical Immunology, Department of Microbiology and Immunology, KU Leuven, Leuven, Belgium
| | - Manali Mukherjee
- Department of Medicine, McMaster University, Hamilton, Ontario, Canada
- The Firestone Institute for Respiratory Health, Research Institute of St. Joe's Hamilton, Hamilton, Ontario, Canada
| | - Paige Lacy
- Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Susanne Vijverberg
- Amsterdam UMC Location University of Amsterdam, Pulmonary Diseases, Amsterdam, The Netherlands
| | - Tomas Slisz
- Department of Respiratory Medicine, First Faculty of Medicine, Charles University and Thomayer Hospital, Prague, Czech Republic
| | - Anna Sediva
- Department of Immunology, 2nd Faculty of Medicine, Charles University, Motol University Hospital, Prague, Czech Republic
| | - Hans-Uwe Simon
- Institute of Pharmacology, University of Bern, Bern, Switzerland
- Institute of Biochemistry, Brandenburg Medical School, Neuruppin, Germany
| | - Ilja Striz
- Department of Clinical and Transplant Immunology, Institute for Clinical and Experimental Medicine, Prague, Czech Republic
| | - Jana Plevkova
- Department of Pathophysiology, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Martin, Slovak Republic
| | - Jurgen Schwarze
- Child Life and Health and Centre for Inflammation Research, The Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK
| | - Radovan Kosturiak
- Department of Paediatrics, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, University Teaching Hospital in Martin, Martin, Slovak Republic
- Outpatient Clinic for Clinical Immunology and Allergology, Nitra, Slovak Republic
| | - Neil E Alexis
- Center for Environmental Medicine, Asthma and Lung Biology, Department of Paediatrics, University of North Carolina, Chapel Hill, North Carolina, USA
| | - Eva Untersmayr
- Institute of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Martina Koziar Vasakova
- Department of Respiratory Medicine, First Faculty of Medicine, Charles University and Thomayer Hospital, Prague, Czech Republic
| | - Edward Knol
- Department Center of Translational Immunology, University Medical Center Utrecht, Utrecht, The Netherlands
- Department Dermatology/Allergology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Leo Koenderman
- Department Center of Translational Immunology, University Medical Center Utrecht, Utrecht, The Netherlands
- Department Pulmonary Diseases, University Medical Center Utrecht, Utrecht, The Netherlands
| |
Collapse
|
17
|
Gao Y, Wang X, Gao L, Li X, Bai W. Body mass index affects the association between plasma lipids and peripheral eosinophils in a general chinese population: a cross-sectional survey. Lipids Health Dis 2023; 22:146. [PMID: 37679775 PMCID: PMC10483721 DOI: 10.1186/s12944-023-01909-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Accepted: 08/23/2023] [Indexed: 09/09/2023] Open
Abstract
BACKGROUND Lipid metabolism affects type 2 immunity; however, the association between plasma lipids and eosinophilic inflammation in humans is uncertain. This study analysed the relationship between plasma lipids and peripheral eosinophils and whether patterns differ with different body mass indexes (BMI). METHODS A cross-sectional survey including 62,441 healthy participants recruited from a regular health screening programme was conducted. Participants were divided into normal weight, overweight and obese subgroups according to BMI. RESULTS Multiple linear regression analysis revealed that elevated logarithmic-transformed eosinophil counts (log(EOS)) significantly correlated with high total cholesterol(TC), triglyceride(TG), low-density lipoprotein-cholesterol (LDL-C), and low high-density lipoprotein-cholesterol (HDL-C)levels in the overall population, as well as in men and women, while certain associations between peripheral blood eosinophil percentage and serum lipids varied by gender. These correlations existed across almost all BMI subgroups, and standardised β values decreased sequentially with increasing BMI. HDL-C had the most significant effect on eosinophils in obese women. Two-factor analysis of variance showed log(EOS) increased with higher BMI and hyperlipidemia whether in male or female and a synergistic effect exists of lipid levels (TG and LDL-C) and BMI in men. CONCLUSIONS Blood eosinophil counts were correlated with blood lipid levels and modified by body mass index status. The effects of lipid levels and body mass index on blood eosinophil counts were synergistic. Therefore, lipid metabolism may be involved in systemic eosinophil inflammation.
Collapse
Affiliation(s)
- Yu Gao
- Department of Otorhinolaryngology, Shanxi Provincial People’s Hospital Affiliated to Shanxi Medical University, No. 29 of Twin Towers Temple Street, Taiyuan, Shanxi 030012 China
| | - Xiaocheng Wang
- Department of Statistics, Shanxi Provincial People’s Hospital Affiliated to Shanxi Medical University, No. 29 of Twin Towers Temple Street, Taiyuan, Shanxi 030012 China
| | - Lan Gao
- College of Basic Medicine, Shanxi University of Chinese Medicine, Jinzhong, Shanxi 030619 China
| | - Xin Li
- Department of Otorhinolaryngology, Shanxi Provincial People’s Hospital Affiliated to Shanxi Medical University, No. 29 of Twin Towers Temple Street, Taiyuan, Shanxi 030012 China
| | - Weihong Bai
- Department of Otorhinolaryngology, Shanxi Provincial People’s Hospital Affiliated to Shanxi Medical University, No. 29 of Twin Towers Temple Street, Taiyuan, Shanxi 030012 China
| |
Collapse
|
18
|
Jesenak M, Vanecek V, Ondrusova M, Urdova V, Dostalova K, Hochmuth L. Real-world outcomes of mepolizumab treatment in severe eosinophilic asthma patients - retrospective cohort study in Slovakia. Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub 2023; 167:272-280. [PMID: 37439266 DOI: 10.5507/bp.2023.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 06/16/2023] [Indexed: 07/14/2023] Open
Abstract
AIMS Mepolizumab, a fully-humanized recombinant IgG1 kappa monoclonal antibody directed against IL-5, has shown improved asthma control and lung function in randomised controlled trials. The aim of this study was to evaluate real-world clinical experience in patients with severe eosinophilic asthma treated with mepolizumab in Slovakia. METHODS A retrospective, non-interventional study based on medical records of all adult asthma patients initiating mepolizumab between November 1, 2017 and January 31, 2019, completing 12 months of treatment. At baseline, general and clinical profile data were recorded 12 months prior to treatment. Primary and secondary endpoints described the results of mepolizumab use at 2, 6, and 12 months after the initiation and compared to baseline. Statistical testing of individual change (in each patient) in selected parameters was performed. RESULTS The cohort included 17 patients with particularly severe asthma at baseline, with frequent severe exacerbations (SE, median 5 [IQR 4-6]/patient/year), high blood eosinophil counts (median 0.6x109/L), frequent oral corticosteroid (OCS) dependence (82.35%), median dose 15 (IQR 7.5-20) mg/day, impaired lung function, and a spectrum of comorbidities. In a one-year follow-up, the data showed reductions in median SE (0 [IQR 0-1] patient/year, eosinophilia (median 0.175x109/L) and OCS maintenance dose (median 6.25 [IQR 2.5-20] mg/day), all statistically significant after 12 months on mepolizumab. Improved and stabilised lung functions throughout the cohort and a reduced incidence of nasal polyposis were observed. CONCLUSIONS The results provide clinical evidence of mepolizumab efficacy in a real sample of patients with severe asthma when administered in routine care settings in Slovakia.
Collapse
Affiliation(s)
- Milos Jesenak
- Department of Clinical Immunology and Allergology, University Teaching Hospital in Martin, Martin, Slovakia
- Department of Pulmonology and Phthisiology, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, University Teaching Hospital in Martin, Martin, Slovakia
- Department of Paediatrics, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, University Teaching Hospital in Martin, Martin, Slovakia
| | - Vaclav Vanecek
- GlaxoSmithKline, Medical Department, Prague, Czech Republic
| | - Martina Ondrusova
- Pharm-In, Ltd, Bratislava, Slovakia
- Faculty of Public Health, Slovak Medical University, Bratislava, Slovakia
| | - Veronika Urdova
- Department of Pulmonology and Phthisiology, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, University Teaching Hospital in Martin, Martin, Slovakia
- Allergology and Immunology Clinic, Department of Internal Medicine, F. D. Roosevelt Hospital, Banska Bystrica, Slovakia
| | | | - Ludek Hochmuth
- Allergology and Immunology Clinic, Department of Internal Medicine, F. D. Roosevelt Hospital, Banska Bystrica, Slovakia
| |
Collapse
|
19
|
Martínez-García MÁ, Méndez R, Olveira C, Girón R, García-Clemente M, Máiz L, Sibila O, Golpe R, Rodríguez-Hermosa JL, Barreiro E, Prados C, Rodríguez-López J, Oscullo G, Labarca G, de la Rosa D. The U-Shaped Relationship Between Eosinophil Count and Bronchiectasis Severity: The Effect of Inhaled Corticosteroids. Chest 2023; 164:606-613. [PMID: 37088355 DOI: 10.1016/j.chest.2023.04.029] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 04/10/2023] [Accepted: 04/14/2023] [Indexed: 04/25/2023] Open
Abstract
BACKGROUND Although a proven relationship exists between the blood eosinophil count (BEC) and the severity of both asthma and COPD, its relationship with bronchiectasis has not been well established. The objective of this study was to analyze the relationship between BEC and the number and severity of exacerbations, and patients' responses to inhaled corticosteroid (IC) treatment in bronchiectasis RESEARCH QUESTION: Does an association exist among BEC, the number of exacerbations and severity of bronchiectasis, and IC treatment? STUDY DESIGN AND METHODS This was a multicenter (43 centers) prospective observational study derived from the Spanish Bronchiectasis Registry. Patients with proven bronchiectasis and a known BEC were included, whereas those with asthma or antieosinophilic treatments were excluded. Patients were divided into four groups according to the BEC at the time of inclusion in the study in a steady-state situation: (1) eosinopenic bronchiectasis (< 50 eosinophils/μL), (2) low number of eosinophils (51-100/μL), (3) normal number of eosinophils (101-300/μL), and (4) eosinophilic bronchiectasis (> 300 eosinophils/μL). RESULTS Nine hundred twenty-eight patients finally were included: 123 patients (13.3%) with < 50 eosinophils/μL (eosinopenic group), 164 patients (17.7%) with 50-100 eosinophils/μL, 488 patients (52.6%) with 101-300 eosinophils/μL, and 153 patients (16.5%) with > 300 eosinophils/μL (eosinophilic group). BEC showed a significant U-shaped relationship with severity, exacerbations, lung function, microbiologic profile, and IC treatment (these being higher in the eosinopenic group compared with the eosinophilic group). IC treatment significantly decreased the number and severity of exacerbations only in the group of bronchiectasis patients with > 300 eosinophils/μL. INTERPRETATION A significant U-shaped relationship was found between BEC and severity and exacerbations in bronchiectasis that was more pronounced in the eosinopenic group. IC treatment decreased the number and severity of exacerbations only in the eosinophilic group.
Collapse
Affiliation(s)
- Miguel Ángel Martínez-García
- Servicio de Neumología, Hospital Universitario y Politécnico La Fe, Valencia, Spain; CIBERES de Enfermedades Respiratorias, ISCIII, Madrid, Spain.
| | - Raúl Méndez
- Servicio de Neumología, Hospital Universitario y Politécnico La Fe, Valencia, Spain; CIBERES de Enfermedades Respiratorias, ISCIII, Madrid, Spain
| | - Casilda Olveira
- Servicio de Neumología, Hospital Regional Universitario de Málaga, Instituto de Investigación Biomédica de Málaga (IBIMA)/Universidad de Málaga, Málaga, Spain
| | - Rosa Girón
- Servicio de Neumología, Instituto de Investigación Sanitaria, Hospital Universitario de la Princesa, Madrid, Spain
| | | | - Luis Máiz
- Servicio de Neumología, Hospital Ramón y Cajal, Madrid, Spain
| | - Oriol Sibila
- Servicio de Neumología, Hospital Clínico, Barcelona, Spain
| | - Rafael Golpe
- Servicio de Neumología, Hospital Lucus Augusti, Lugo, Spain
| | | | - Esther Barreiro
- CIBERES de Enfermedades Respiratorias, ISCIII, Madrid, Spain; Servicio de Neumología, Hospital del Mar-IMIM, UPF, CIBERES, Barcelona, Spain
| | | | | | - Grace Oscullo
- Servicio de Neumología, Hospital Universitario y Politécnico La Fe, Valencia, Spain
| | - Gonzalo Labarca
- Division of Sleep Medicine, Harvard Medical School, Boston, MA; Department of Clinical Biochemistry and Immunology, Faculty of Pharmacy, University of Concepción, Concepción, Chile
| | - David de la Rosa
- Servicio de Neumología, Hospital Santa Creu i Sant Pau, Barcelona, Spain
| |
Collapse
|
20
|
Matsubara M, Yagi K, Minami Y, Kanda E, Sunada Y, Tao Y, Takai H, Shikata E, Hirai S, Matsubara S, Uno M. Preoperative elevated eosinophils in peripheral blood for prediction of postoperative recurrence of chronic subdural hematoma. J Neurosurg 2023; 139:708-713. [PMID: 36640094 DOI: 10.3171/2022.12.jns222432] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Accepted: 12/07/2022] [Indexed: 01/15/2023]
Abstract
OBJECTIVE Chronic subdural hematoma (CSDH) is a common neurological disease with a significant postoperative recurrence rate. There are numerous reported studies of the development of CSDH. In recent years, fibrinolysis, angiogenesis, and inflammation have all been identified as relevant factors in the development of CSDH. While several authors have reported risk factors associated with CSDH recurrence, differential blood count of leukocytes has not yet been discussed. Therefore, in this study the authors aimed to retrospectively investigate the association between differential blood leukocyte count and the rate of CSDH recurrence. METHODS The authors retrospectively reviewed 476 patients with 529 CSDHs who underwent surgery at a single institution between January 2011 and December 2021. After exclusion of patients who had not undergone a differential blood test of leukocytes preoperatively, CSDHs in 517 cerebral hemispheres of 466 patients were included in the study. Peripheral blood eosinophil counts ≥ 100/µL were considered eosinophil rich. RESULTS CSDHs in 494 cerebral hemispheres of 445 patients were followed up postoperatively for at least 3 months or until resolution indicated by CSDH disappearance. Postoperative recurrence of CSDH was observed in 46 cerebral hemispheres (9.3%). Among the preoperative differential blood counts of all leukocytes, eosinophils alone were significantly associated with CSDH recurrence (median [IQR] 76/µL [30-155/µL] vs 119/µL [39-217/µL]; p = 0.03). Multivariable regression analysis showed thrombocytopenia (adjusted OR [aOR] 5.23, 95% CI 1.85-14.79; p = 0.002), use of anticoagulant drugs (aOR 2.51, 95% CI 1.17-5.38; p = 0.02), hematoma volume (10 mL per increase) (aOR 1.08, 95% CI 1.00-1.16; p = 0.04), and eosinophil-rich peripheral blood (aOR 2.22, 95% CI 1.17-4.23; p = 0.02) were all independent predictors for CSDH recurrence. CONCLUSIONS This study showed that preoperative peripheral blood eosinophil count was an independent risk factor for CSDH recurrence. Therefore, patients with CSDH who have elevated eosinophils preoperatively in peripheral blood require careful follow-up.
Collapse
Affiliation(s)
| | | | | | - Eiichiro Kanda
- 2Medical Science, Kawasaki Medical School, Kurashiki, Okayama, Japan
| | | | | | | | | | | | | | | |
Collapse
|
21
|
Li J, Liang L, Feng L, Cao S, Cai YS, Li X, Qian Z, Brightling CE, Tong Z. The Prognostic Value of Blood Eosinophil Level in AECOPD is Influenced by Corticosteroid Treatment During Hospitalization. J Inflamm Res 2023; 16:3233-3243. [PMID: 37555013 PMCID: PMC10404713 DOI: 10.2147/jir.s421605] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Accepted: 07/24/2023] [Indexed: 08/10/2023] Open
Abstract
PURPOSE Blood eosinophil is a promising biomarker for phenotyping patients with acute exacerbation of COPD (AECOPD). We aimed to evaluate the prognostic value of eosinophil on short- and long-term outcomes stratified by corticosteroid treatment among AECOPD inpatients. PATIENTS AND METHODS In this retrospective cohort study, we included patients hospitalized for AECOPD from July 2013 to June 2021 in Beijing, China. Clinical data were collected from electronic medical records. The blood eosinophil count was measured within 24h after admission. Eosinophilic AECOPD was defined as having an eosinophil percentage ≥ 2%. The study outcomes were length of stay (LOS), treatment failure, and AECOPD readmission risk within 3 years of discharge. Multivariable models were used to analyze the associations between blood eosinophil count and outcomes stratified by corticosteroid treatment during hospitalization. RESULTS A total of 2406 AECOPD patients were included. The median LOS of AECOPD patients was 10 (interquartile range: 8-14) days. The eosinophil percentage was negatively associated with LOS (P-trend=0.014). Compared with the non-eosinophilic AECOPD group, the eosinophilic group had a 58% lower risk of treatment failure (OR=0.42, 95% CI: 0.20-0.89) in patients treated with systemic corticosteroids, but no association was observed in those treated with inhaled corticosteroids (ICS) only (OR=0.95, 95% CI: 0.60-1.52). The eosinophilic group had an increased risk of 90-day re-admission in patients treated with ICS only (HR=1.51, 95% CI: 1.00-2.29), but not in patients treated with systemic corticosteroids during hospitalization (HR=0.67, 95% CI: 0.39-1.15). No statistically significant results were found for 180-day, 1-year, or 3-year readmission risk. CONCLUSION Elevated blood eosinophils in AECOPD were associated with shorter length of stay and improved response to treatment with systemic corticosteroids, but not inhaled corticosteroids. Our study suggested that a therapeutic approach of using systemic corticosteroid may benefit patients present with eosinophilic AECOPD.
Collapse
Affiliation(s)
- Jiachen Li
- Department of Clinical Epidemiology, Beijing Institute of Respiratory Medicine and Beijing Chao-Yang Hospital, Capital Medical University, Beijing, People’s Republic of China
| | - Lirong Liang
- Department of Clinical Epidemiology, Beijing Institute of Respiratory Medicine and Beijing Chao-Yang Hospital, Capital Medical University, Beijing, People’s Republic of China
| | - Lin Feng
- Department of Clinical Epidemiology, Beijing Institute of Respiratory Medicine and Beijing Chao-Yang Hospital, Capital Medical University, Beijing, People’s Republic of China
| | - Siyu Cao
- Department of Respiratory and Critical Care Medicine, Beijing Institute of Respiratory Medicine and Beijing Chao-Yang Hospital, Capital Medical University, Beijing, People’s Republic of China
| | - Yutong Samuel Cai
- Centre for Environmental Health and Sustainability, Department of Population Health Sciences, University of Leicester, Leicester, UK
| | - Xiaobo Li
- Beijing Key Laboratory of Environmental Toxicology, School of Public Health, Capital Medical University, Beijing, People’s Republic of China
| | - Zhenbei Qian
- Department of Respiratory and Critical Care Medicine, Beijing Institute of Respiratory Medicine and Beijing Chao-Yang Hospital, Capital Medical University, Beijing, People’s Republic of China
| | - Christopher E Brightling
- Institute for Lung Health, NIHR Leicester Biomedical Research Centre, University of Leicester, Leicester, UK
| | - Zhaohui Tong
- Department of Respiratory and Critical Care Medicine, Beijing Institute of Respiratory Medicine and Beijing Chao-Yang Hospital, Capital Medical University, Beijing, People’s Republic of China
| |
Collapse
|
22
|
Saglani S, Yates L, Lloyd CM. Immunoregulation of asthma by type 2 cytokine therapies: Treatments for all ages? Eur J Immunol 2023; 53:e2249919. [PMID: 36932669 DOI: 10.1002/eji.202249919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 03/08/2023] [Accepted: 03/10/2023] [Indexed: 03/19/2023]
Abstract
Asthma is classically considered to be a disease of type 2 immune dysfunction, since many patients exhibit the consequences of excess secretion of cytokines such as IL-4, IL-5, and IL-13 concomitant with inflammation typified by eosinophils. Mouse and human disease models have determined that many of the canonical pathophysiologic features of asthma may be caused by these disordered type 2 immune pathways. As such considerable efforts have been made to develop specific drugs targeting key cytokines. There are currently available multiple biologic agents that successfully reduce the functions of IL-4, IL-5, and IL-13 in patients, and many improve the course of severe asthma. However, none are curative and do not always minimize the key features of disease, such as airway hyperresponsiveness. Here, we review the current therapeutic landscape targeting type 2 immune cytokines and discuss evidence of efficacy and limitations of their use in adults and children with asthma.
Collapse
Affiliation(s)
- Sejal Saglani
- National Heart and Lung Institute, Imperial College London, London, UK
- Royal Brompton and Harefield Hospitals, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - Laura Yates
- National Heart and Lung Institute, Imperial College London, London, UK
| | - Clare M Lloyd
- National Heart and Lung Institute, Imperial College London, London, UK
| |
Collapse
|
23
|
Lommatzsch M, Criée CP, de Jong CCM, Gappa M, Geßner C, Gerstlauer M, Hämäläinen N, Haidl P, Hamelmann E, Horak F, Idzko M, Ignatov A, Koczulla AR, Korn S, Köhler M, Lex C, Meister J, Milger-Kneidinger K, Nowak D, Nothacker M, Pfaar O, Pohl W, Preisser AM, Rabe KF, Riedler J, Schmidt O, Schreiber J, Schuster A, Schuhmann M, Spindler T, Taube C, Christian Virchow J, Vogelberg C, Vogelmeier CF, Wantke F, Windisch W, Worth H, Zacharasiewicz A, Buhl R. [Diagnosis and treatment of asthma: a guideline for respiratory specialists 2023 - published by the German Respiratory Society (DGP) e. V.]. Pneumologie 2023; 77:461-543. [PMID: 37406667 DOI: 10.1055/a-2070-2135] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/07/2023]
Abstract
The management of asthma has fundamentally changed during the past decades. The present guideline for the diagnosis and treatment of asthma was developed for respiratory specialists who need detailed and evidence-based information on the new diagnostic and therapeutic options in asthma. The guideline shows the new role of biomarkers, especially blood eosinophils and fractional exhaled NO (FeNO), in diagnostic algorithms of asthma. Of note, this guideline is the first worldwide to announce symptom prevention and asthma remission as the ultimate goals of asthma treatment, which can be achieved by using individually tailored, disease-modifying anti-asthmatic drugs such as inhaled steroids, allergen immunotherapy or biologics. In addition, the central role of the treatment of comorbidities is emphasized. Finally, the document addresses several challenges in asthma management, including asthma treatment during pregnancy, treatment of severe asthma or the diagnosis and treatment of work-related asthma.
Collapse
Affiliation(s)
- Marek Lommatzsch
- Zentrum für Innere Medizin, Abt. für Pneumologie, Universitätsmedizin Rostock
| | | | - Carmen C M de Jong
- Abteilung für pädiatrische Pneumologie, Abteilung für Pädiatrie, Inselspital, Universitätsspital Bern
| | - Monika Gappa
- Klinik für Kinder und Jugendliche, Evangelisches Krankenhaus Düsseldorf
| | | | | | | | - Peter Haidl
- Abteilung für Pneumologie II, Fachkrankenhaus Kloster Grafschaft GmbH, Schmallenberg
| | - Eckard Hamelmann
- Kinder- und Jugendmedizin, Evangelisches Klinikum Bethel, Bielefeld
| | | | - Marco Idzko
- Abteilung für Pulmologie, Universitätsklinik für Innere Medizin II, Medizinische Universität Wien
| | - Atanas Ignatov
- Universitätsklinik für Frauenheilkunde, Geburtshilfe und Reproduktionsmedizin, Universitätsklinikum Magdeburg
| | - Andreas Rembert Koczulla
- Schön-Klinik Berchtesgadener Land, Berchtesgaden
- Klinik für Innere Medizin Schwerpunkt Pneumologie, Universitätsklinikum Marburg
| | - Stephanie Korn
- Pneumologie und Beatmungsmedizin, Thoraxklinik, Universitätsklinikum Heidelberg
| | - Michael Köhler
- Deutsche Patientenliga Atemwegserkrankungen, Gau-Bickelheim
| | - Christiane Lex
- Klinik für Kinder- und Jugendmedizin, Universitätsmedizin Göttingen
| | - Jochen Meister
- Klinik für Kinder- und Jugendmedizin, Helios Klinikum Aue
| | | | - Dennis Nowak
- Institut und Poliklinik für Arbeits-, Sozial- und Umweltmedizin, LMU München
| | - Monika Nothacker
- Arbeitsgemeinschaft der Wissenschaftlichen Medizinischen Fachgesellschaften e. V
| | - Oliver Pfaar
- Klinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Hals-Chirurgie, Sektion für Rhinologie und Allergie, Universitätsklinikum Marburg, Philipps-Universität Marburg, Marburg
| | - Wolfgang Pohl
- Gesundheitszentrum Althietzing, Karl Landsteiner Institut für klinische und experimentelle Pneumologie, Wien
| | - Alexandra M Preisser
- Zentralinstitut für Arbeitsmedizin und Maritime Medizin, Universitätsklinikum Hamburg-Eppendorf, Hamburg
| | - Klaus F Rabe
- Pneumologie, LungenClinic Großhansdorf, UKSH Kiel
| | - Josef Riedler
- Abteilung für Kinder- und Jugendmedizin, Kardinal Schwarzenberg Klinikum Schwarzach
| | | | - Jens Schreiber
- Universitätsklinik für Pneumologie, Universitätsklinikum Magdeburg
| | - Antje Schuster
- Klinik für Allgemeine Pädiatrie, Neonatologie und Kinderkardiologie, Universitätsklinikum Düsseldorf
| | | | | | - Christian Taube
- Klinik für Pneumologie, Universitätsmedizin Essen-Ruhrlandklinik
| | | | - Christian Vogelberg
- Klinik und Poliklinik für Kinder- und Jugendmedizin, Universitätsklinikum Carl Gustav Carus, Dresden
| | | | | | - Wolfram Windisch
- Lungenklinik Köln-Merheim, Lehrstuhl für Pneumologie, Universität Witten/Herdecke
| | - Heinrich Worth
- Pneumologische & Kardiologische Gemeinschaftspraxis, Fürth
| | | | - Roland Buhl
- Klinik für Pneumologie, Zentrum für Thoraxerkrankungen, Universitätsmedizin Mainz
| |
Collapse
|
24
|
Luo Q, Dwaraka VB, Chen Q, Tong H, Zhu T, Seale K, Raffaele JM, Zheng SC, Mendez TL, Chen Y, Carreras N, Begum S, Mendez K, Voisin S, Eynon N, Lasky-Su JA, Smith R, Teschendorff AE. A meta-analysis of immune-cell fractions at high resolution reveals novel associations with common phenotypes and health outcomes. Genome Med 2023; 15:59. [PMID: 37525279 PMCID: PMC10388560 DOI: 10.1186/s13073-023-01211-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 07/10/2023] [Indexed: 08/02/2023] Open
Abstract
BACKGROUND Changes in cell-type composition of tissues are associated with a wide range of diseases and environmental risk factors and may be causally implicated in disease development and progression. However, these shifts in cell-type fractions are often of a low magnitude, or involve similar cell subtypes, making their reliable identification challenging. DNA methylation profiling in a tissue like blood is a promising approach to discover shifts in cell-type abundance, yet studies have only been performed at a relatively low cellular resolution and in isolation, limiting their power to detect shifts in tissue composition. METHODS Here we derive a DNA methylation reference matrix for 12 immune-cell types in human blood and extensively validate it with flow-cytometric count data and in whole-genome bisulfite sequencing data of sorted cells. Using this reference matrix, we perform a directional Stouffer and fixed effects meta-analysis comprising 23,053 blood samples from 22 different cohorts, to comprehensively map associations between the 12 immune-cell fractions and common phenotypes. In a separate cohort of 4386 blood samples, we assess associations between immune-cell fractions and health outcomes. RESULTS Our meta-analysis reveals many associations of cell-type fractions with age, sex, smoking and obesity, many of which we validate with single-cell RNA sequencing. We discover that naïve and regulatory T-cell subsets are higher in women compared to men, while the reverse is true for monocyte, natural killer, basophil, and eosinophil fractions. Decreased natural killer counts associated with smoking, obesity, and stress levels, while an increased count correlates with exercise and sleep. Analysis of health outcomes revealed that increased naïve CD4 + T-cell and N-cell fractions associated with a reduced risk of all-cause mortality independently of all major epidemiological risk factors and baseline co-morbidity. A machine learning predictor built only with immune-cell fractions achieved a C-index value for all-cause mortality of 0.69 (95%CI 0.67-0.72), which increased to 0.83 (0.80-0.86) upon inclusion of epidemiological risk factors and baseline co-morbidity. CONCLUSIONS This work contributes an extensively validated high-resolution DNAm reference matrix for blood, which is made freely available, and uses it to generate a comprehensive map of associations between immune-cell fractions and common phenotypes, including health outcomes.
Collapse
Affiliation(s)
- Qi Luo
- CAS Key Laboratory of Computational Biology, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 320 Yue Yang Road, Shanghai, 200031, China
| | - Varun B Dwaraka
- TruDiagnostics, 881 Corporate Dr., Lexington, KY, 40503, USA
| | - Qingwen Chen
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, 02115, USA
| | - Huige Tong
- CAS Key Laboratory of Computational Biology, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 320 Yue Yang Road, Shanghai, 200031, China
| | - Tianyu Zhu
- CAS Key Laboratory of Computational Biology, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 320 Yue Yang Road, Shanghai, 200031, China
| | - Kirsten Seale
- Institute for Health and Sport (iHeS), Victoria University, Footscray, VIC, 3011, Australia
| | - Joseph M Raffaele
- PhysioAge LLC, 30 Central Park South / Suite 8A, New York, NY, 10019, USA
| | - Shijie C Zheng
- Department of Biostatistics, Johns Hopkins Bloomberg School of Public Health, Baltimore, USA
| | - Tavis L Mendez
- TruDiagnostics, 881 Corporate Dr., Lexington, KY, 40503, USA
| | - Yulu Chen
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, 02115, USA
| | | | - Sofina Begum
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, 02115, USA
| | - Kevin Mendez
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, 02115, USA
| | - Sarah Voisin
- Institute for Health and Sport (iHeS), Victoria University, Footscray, VIC, 3011, Australia
| | - Nir Eynon
- Australian Regenerative Medicine Institute, Monash University, Clayton, VIC, 3800, Australia
| | - Jessica A Lasky-Su
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, 02115, USA.
| | - Ryan Smith
- TruDiagnostics, 881 Corporate Dr., Lexington, KY, 40503, USA.
| | - Andrew E Teschendorff
- CAS Key Laboratory of Computational Biology, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 320 Yue Yang Road, Shanghai, 200031, China.
| |
Collapse
|
25
|
Bush A. Basic clinical management of preschool wheeze. Pediatr Allergy Immunol 2023; 34:e13988. [PMID: 37492909 DOI: 10.1111/pai.13988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Accepted: 06/20/2023] [Indexed: 07/27/2023]
Abstract
Preschool wheeze is very common and often difficult to treat. Most children do not require any investigations; only a detailed history and physical examination to ensure an alternative diagnosis is not being missed; and the differential diagnosis, and hence investigation protocols for the child in whom a major illness is suspected, shows geographical variation. The pattern of symptoms may be divided into episodic viral and multiple trigger to guide treatment, but the pattern of symptoms must be re-assessed regularly. However, symptom patterns are a poor guide to underlying pathology. Attention to the proper use of spacers, and adverse environmental exposures such as tobacco smoke exposure, is essential. There are no disease-modifying therapies, so therapy is symptomatic. This paper reviews recent advances in treatment, including new data on the place of leukotriene receptor antagonists, prednisolone for acute attacks of wheeze, and antibiotics, based on new attempts to understand the underlying pathology in a way that is clinically practical.
Collapse
Affiliation(s)
- Andrew Bush
- Imperial College, London, UK
- National Heart and Lung Institute, London, UK
- Royal Brompton Harefield NHS Foundation Trust, London, UK
| |
Collapse
|
26
|
Scotney E, Fleming L, Saglani S, Sonnappa S, Bush A. Advances in the pathogenesis and personalised treatment of paediatric asthma. BMJ MEDICINE 2023; 2:e000367. [PMID: 37841968 PMCID: PMC10568124 DOI: 10.1136/bmjmed-2022-000367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Accepted: 05/05/2023] [Indexed: 10/17/2023]
Abstract
The diversity of pathology of severe paediatric asthma demonstrates that the one-size-fits-all approach characterising many guidelines is inappropriate. The term "asthma" is best used to describe a clinical syndrome of wheeze, chest tightness, breathlessness, and sometimes cough, making no assumptions about underlying pathology. Before personalising treatment, it is essential to make the diagnosis correctly and optimise basic management. Clinicians must determine exactly what type of asthma each child has. We are moving from describing symptom patterns in preschool wheeze to describing multiple underlying phenotypes with implications for targeting treatment. Many new treatment options are available for school age asthma, including biological medicines targeting type 2 inflammation, but a paucity of options are available for non-type 2 disease. The traditional reliever treatment, shortacting β2 agonists, is being replaced by combination inhalers containing inhaled corticosteroids and fast, longacting β2 agonists to treat the underlying inflammation in even mild asthma and reduce the risk of asthma attacks. However, much decision making is still based on adult data extrapolated to children. Better inclusion of children in future research studies is essential, if children are to benefit from these new advances in asthma treatment.
Collapse
Affiliation(s)
- Elizabeth Scotney
- National Heart and Lung Institute, Imperial College London, London, UK
- Royal Brompton Hospital, London, UK
| | - Louise Fleming
- National Heart and Lung Institute, Imperial College London, London, UK
- Royal Brompton Hospital, London, UK
- Centre for Paediatrics and Child Health, Imperial College London, London, UK
| | - Sejal Saglani
- National Heart and Lung Institute, Imperial College London, London, UK
- Royal Brompton Hospital, London, UK
- Centre for Paediatrics and Child Health, Imperial College London, London, UK
| | - Samatha Sonnappa
- National Heart and Lung Institute, Imperial College London, London, UK
- Royal Brompton Hospital, London, UK
- Centre for Paediatrics and Child Health, Imperial College London, London, UK
| | - Andrew Bush
- National Heart and Lung Institute, Imperial College London, London, UK
- Royal Brompton Hospital, London, UK
- Centre for Paediatrics and Child Health, Imperial College London, London, UK
| |
Collapse
|
27
|
Thomsen GN, Christoffersen MN, Lindegaard HM, Davidsen JR, Hartmeyer GN, Assing K, Mortz CG, Martin-Iguacel R, Møller MB, Kjeldsen AD, Havelund T, El Fassi D, Broesby-Olsen S, Maiborg M, Johansson SL, Andersen CL, Vestergaard H, Bjerrum OW. The multidisciplinary approach to eosinophilia. Front Oncol 2023; 13:1193730. [PMID: 37274287 PMCID: PMC10232806 DOI: 10.3389/fonc.2023.1193730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Accepted: 04/25/2023] [Indexed: 06/06/2023] Open
Abstract
Eosinophilic granulocytes are normally present in low numbers in the bloodstream. Patients with an increased number of eosinophilic granulocytes in the differential count (eosinophilia) are common and can pose a clinical challenge because conditions with eosinophilia occur in all medical specialties. The diagnostic approach must be guided by a thorough medical history, supported by specific tests to guide individualized treatment. Neoplastic (primary) eosinophilia is identified by one of several unique acquired genetic causes. In contrast, reactive (secondary) eosinophilia is associated with a cytokine stimulus in a specific disease, while idiopathic eosinophilia is a diagnosis by exclusion. Rational treatment is disease-directed in secondary cases and has paved the way for targeted treatment against the driver in primary eosinophilia, whereas idiopathic cases are treated as needed by principles in eosinophilia originating from clonal drivers. The vast majority of patients are diagnosed with secondary eosinophilia and are managed by the relevant specialty-e.g., rheumatology, allergy, dermatology, gastroenterology, pulmonary medicine, hematology, or infectious disease. The overlap in symptoms and the risk of irreversible organ involvement in eosinophilia, irrespective of the cause, warrants that patients without a diagnostic clarification or who do not respond to adequate treatment should be referred to a multidisciplinary function anchored in a hematology department for evaluation. This review presents the pathophysiology, manifestations, differential diagnosis, diagnostic workup, and management of (adult) patients with eosinophilia. The purpose is to place eosinophilia in a clinical context, and therefore justify and inspire the establishment of a multidisciplinary team of experts from diagnostic and clinical specialties at the regional level to support the second opinion. The target patient population requires highly specialized laboratory analysis and therapy and occasionally has severe eosinophil-induced organ dysfunction. An added value of a centralized, clinical function is to serve as a platform for education and research to further improve the management of patients with eosinophilia. Primary and idiopathic eosinophilia are key topics in the review, which also address current research and discusses outstanding issues in the field.
Collapse
Affiliation(s)
| | | | - Hanne Merete Lindegaard
- Department of Rheumatology, Odense University Hospital, Denmark; Research Unit for Rheumatology, Odense University Hospital, Odense, Denmark; University of Southern Denmark, Odense, Denmark
| | - Jesper Rømhild Davidsen
- Department of Respiratory Medicine, Odense University Hospital, Denmark; Odense Respiratory Research Unit (ODIN), Department of Clinical Research, University of Southern Denmark, Odense, Denmark
| | | | - Kristian Assing
- Department of Clinical Immunology, Odense University Hospital, Odense, Denmark
| | - Charlotte G. Mortz
- Department of Dermatology and Allergy Centre, Odense Research Centre for Anaphylaxis (ORCA), Odense University Hospital, Denmark; University of Southern Denmark, Odense, Denmark
| | | | | | - Anette Drøhse Kjeldsen
- Department of ORL- Head and Neck Surgery and Audiology, Odense University Hospital, Odense, Denmark; University of Southern Denmark, Odense, Denmark
| | - Troels Havelund
- Department of Gastroenterology and Hepatology, Odense University Hospital, Odense, Denmark
| | - Daniel El Fassi
- Department of Hematology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Sigurd Broesby-Olsen
- Department of Dermatology and Allergy Centre, Odense Research Centre for Anaphylaxis (ORCA), Odense University Hospital, Denmark; University of Southern Denmark, Odense, Denmark
| | - Michael Maiborg
- Department of Cardiology, Odense University Hospital, Odense, Denmark
| | | | - Christen Lykkegaard Andersen
- Department of Hematology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
- Centre for General Practice, Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Hanne Vestergaard
- Department of Hematology, Odense University Hospital, Odense, Denmark
| | - Ole Weis Bjerrum
- Department of Hematology, Odense University Hospital, Odense, Denmark
| |
Collapse
|
28
|
Chen B, Rong Q, Fu Y, Liang H, Kong X, Zhang Q, Jiang M, Wang Z, Xie J. Characteristics of patients with incidental eosinophilia admitted to a tertiary hospital in southern China. Heliyon 2023; 9:e15569. [PMID: 37144198 PMCID: PMC10151328 DOI: 10.1016/j.heliyon.2023.e15569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 03/12/2023] [Accepted: 04/13/2023] [Indexed: 05/06/2023] Open
Abstract
Background The characteristics of patients with eosinophilia are heterogeneous and the outcomes can vary from asymptomatic to severe. Objective To describe the feature of patients with eosinophilia in a single center. Design Based on the electronic medical records from Yangjiang People's Hospital in China, the inpatients admitted between June 2018 and February 2021 with measured blood eosinophil counts were evaluated. Methods Eosinophilia was defined as a peripheral blood eosinophil count of ≥0.5 × 109/L. Differences were compared by eosinophilia severity. The medical records of patients with moderate to severe eosinophilia were reviewed and summarized in terms of examination, diagnoses and management. And these patients were matched with patients without incidental eosinophilia by propensity score and the differences were compared. Results A total of 7,835 patients with eosinophilia were identified out of 131,566 total inpatients. All types of eosinophilia were most common in males (8.2%; 5,351/65,615), and in patients aged 0-6 years (11.6%; 1,760/15,204), and in the pediatric (10.8%; 1,764/16,336) department, followed by dermatology (10.6%; 123/1,162), Oncology (7.5%; 394/5,239) and Intensive care unit (ICU) (7.4%; 119/1,608). Patients with moderate to severe eosinophilia were more likely to admit to ICU (moderate: 1.3%; severe: 0.50%). In patients with moderate to severe eosinophilia, only 205/621 (33%) had eosinophilia mentioned in their records, and only 63/621 (10.1%) underwent investigations for eosinophilia. The majority of patients with moderate to severe eosinophilia (372/621, 59.9%) had an infectious disease, and little examination (7.4%; 46/621) was taken to identify the cause of eosinophilia, and only 39/621 (6.3%) of patients had a discrete cause of eosinophilia identified. Patients with moderate to severe eosinophilia (24.3%; 151/621) exhibited certain chance to have organ dysfunction. Conclusion Incidental eosinophilia in inpatients was frequently neglected and less investigated. Multidisciplinary consultation may improve outcomes of inpatients with moderate to severe eosinophilia.
Collapse
Affiliation(s)
- Bigui Chen
- Department of Respiratory and Critical Care Medicine, Yangjiang People's Hospital, Yangjiang, Guangdong, China
| | - Qiuping Rong
- Department of Respiratory and Critical Care Medicine, Yangjiang People's Hospital, Yangjiang, Guangdong, China
| | - Yu Fu
- Department of Allergy and Clinical Immunology, National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Hanwen Liang
- National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Xuetao Kong
- National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Qingling Zhang
- Pulmonary and Critical Care Medicine, Guangzhou Institute of Respiratory Health, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, State Key Laboratory of Respiratory Diseases, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Mei Jiang
- National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
- Corresponding author. National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, 151 Yanjiang Road, Guangzhou, Guangdong, 510120, China.
| | - Zhufeng Wang
- National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
- Corresponding author. National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, 151 Yanjiang Road, Guangzhou, Guangdong, 510120, China. ;
| | - Jiaxing Xie
- Department of Respiratory and Critical Care Medicine, Yangjiang People's Hospital, Yangjiang, Guangdong, China
- Department of Allergy and Clinical Immunology, National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
- Corresponding author. Department of Allergy and Clinical Immunology, National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, 151 Yanjiang Road, Guangzhou, Guangdong, 510120, China.
| |
Collapse
|
29
|
Hilvering B, Koenderman L. Quality over quantity; eosinophil activation status will deepen the insight into eosinophilic diseases. Respir Med 2023; 207:107094. [PMID: 36572067 DOI: 10.1016/j.rmed.2022.107094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 12/01/2022] [Accepted: 12/15/2022] [Indexed: 12/24/2022]
Abstract
Eosinophil associated diseases have gained much attention recently because of the introduction of specific eosinophil targeted therapies. These diseases range from acute parasitic infections to chronic inflammatory diseases such as eosinophilic asthma. In eosinophilic asthma an increased eosinophil cell count in peripheral blood is the gold standard for determination of the pheno-/endotype and severity of disease. Despite a broad consensus there is concern on validity of this simple measurement, because the eosinophil compartment is far from homogenous. Multiple tissues harbour non-activated cells under homeostatic conditions and other tissues, normally devoid of eosinophils, become infested with these cells under inflammatory conditions. It will, therefore, be clear that eosinophils become differentially (pre)-activated at different tissue sites in homeostatic and inflammatory conditions. This complexity should be investigated in detail as it is 1) far from clear what the long-term side effects are that are caused by application of eosinophil targeted therapies in a "one size fits all" concept and 2) real-world data of eosinophil targeted therapies in asthma shows a broad variety in the treatment response. This review will focus on complex mechanisms of eosinophil activation in vivo to create a better view on the dynamics of the eosinophil compartment in health and disease both to prevent collateral damage caused by aberrant activation of eosinophils ánd to improve effectiveness of eosinophil targeted treatments.
Collapse
Affiliation(s)
- B Hilvering
- Dept. Pulmonary Medicine, Amsterdam University Medical Center, the Netherlands.
| | - L Koenderman
- Dept. Respiratory Medicine and Center for Translational Immunology, University Medical Center Utrecht, the Netherlands
| |
Collapse
|
30
|
Bush A. Differing effects of mepolizumab across the life course. THE LANCET. RESPIRATORY MEDICINE 2023; 11:123-125. [PMID: 36642076 DOI: 10.1016/s2213-2600(23)00004-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Accepted: 11/28/2022] [Indexed: 01/15/2023]
Affiliation(s)
- Andrew Bush
- Imperial College London, London, UK; Imperial Centre for Paediatrics and Child Health, London, UK; Department of Paediatric Respiratory Medicine, Royal Brompton Hospital, Sydney Street, London SW3 6NP, UK.
| |
Collapse
|
31
|
Chen B, Fu Y, Wang Z, Rong Q, Zhang Q, Xie J, Kong X, Jiang M. Eosinophilia attention, diagnosis, treatment, and awareness in physicians: a cross-sectional survey. Ther Adv Chronic Dis 2023; 14:20406223221146938. [PMID: 36712467 PMCID: PMC9880572 DOI: 10.1177/20406223221146938] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Accepted: 12/05/2022] [Indexed: 01/26/2023] Open
Abstract
Background Patients with incidental eosinophilia is becoming increasingly common in clinical practice. But it remains challenging to diagnose and treat owing to its complex etiology. The awareness of physicians and the strategies of diagnosis and treatment toward eosinophilia are still unclear. Objective We aimed to evaluate attention, diagnosis, treatment, and awareness of eosinophilia among physicians, as well as factors influencing clinical practice, and to find ways to improve the efficacy of this disease. Design This is a cross-sectional survey. Methods A cross-sectional study was conducted from 1 to 4 June 2021 in a tertiary hospital. Self-administered and validated electronic questionnaire was used to investigate the attention toward eosinophilia, the strategies of diagnosis and treatment, and the awareness in physicians. Results A total of 607 valid questionnaires were collected, with a response rate of 84.5%. Among the responders, 65.4% of physicians claimed to be familiar with patients with eosinophilia but only 11.0% of them had read the relevant guidelines or expert consensus. Among 207 physicians who had ever diagnosed patients with eosinophilia, only 19.4% had performed detailed examinations. The accuracy of awareness questions was 1.6-53.5%, and only 26.5% of physicians had high levels of awareness. An increase in the awareness level of up to 2.82 folds was seen among physicians with factors such as job title, encountering patients with eosinophilia, linking patients' conditions to peripheral blood eosinophil count, and paying attention to guidelines. Conclusion This study highlighted the importance of raising awareness and knowledge of eosinophilia among physicians in China. More works on education about eosinophilia guideline are needed, which may help physicians make decision with more benefits to patients.
Collapse
Affiliation(s)
| | | | | | - Qiuping Rong
- Department of Respiratory and Critical Care
Medicine, Yangjiang People’s Hospital, Yangjiang, China
| | - Qingling Zhang
- Pulmonary and Critical Care Medicine, Guangzhou
Institute of Respiratory Health, National Clinical Research Center for
Respiratory Disease, National Center for Respiratory Medicine, State Key
Laboratory of Respiratory Diseases, The First Affiliated Hospital of
Guangzhou Medical University, Guangzhou, China
| | - Jiaxing Xie
- Department of Allergy and Clinical Immunology,
National Clinical Research Center for Respiratory Disease, State Key
Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory
Health, The First Affiliated Hospital of Guangzhou Medical University, 151
Yanjiang Road, Guangzhou 510120, China. Department of Respiratory and
Critical Care Medicine, Yangjiang People’s Hospital, Yangjiang, China
| | | | - Mei Jiang
- National Clinical Research Center for
Respiratory Disease, State Key Laboratory of Respiratory Disease, Guangzhou
Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou
Medical University, 151 Yanjiang Road, Guangzhou, China
| |
Collapse
|
32
|
Potential determinants of T helper 2 markers and their distribution in school-aged children. Allergol Int 2023; 72:100-106. [PMID: 36050254 DOI: 10.1016/j.alit.2022.07.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 07/19/2022] [Accepted: 07/28/2022] [Indexed: 01/25/2023] Open
Abstract
BACKGROUND There is growing data on T helper 2 (Th2) biomarker determinants in adult populations. However, the determinants and typical range of these biomarkers have not been well studied in general populations of children. Therefore, we assessed the determinants and typical range of three Th2 biomarkers, including blood eosinophils, FeNO, and serum total IgE in 9-11-year-old children in a prospective birth cohort. METHODS We examined the pre- and postnatal factors associated with Th2 biomarkers using multivariable logistic regression analysis (n = 428) and extended the results to the original cohort (n = 17,009) using inverse probability weighting. We also measured typical Th2 biomarker distribution in all examined children and healthy participants without allergic diseases (n = 180). RESULTS At age 9-11, wheeze (odds ratio (OR) 7.63), rhinitis (OR 3.14), and eczema (OR 2.46) were significantly associated with increased blood eosinophils. All three allergic conditions were associated with FeNO and total serum IgE, but the ORs were smaller than those for blood eosinophils. Secondhand smoking was inversely associated with the blood eosinophils (OR, 0.38). Similar results were found in the original cohort. Male sex and prenatal factors (maternal smoking and parental history of allergies) were not independent predictors of high Th2 levels. CONCLUSIONS In addition to wheezing and rhinitis, eczema and secondhand smoke exposure are independent factors for Th2 biomarker interpretation in children. Furthermore, the typical values and cutoff values of blood eosinophils in adults may not be applicable to children.
Collapse
|
33
|
Gershuny V, Sun Q, Schrieber SJ, Matta MK, Weaver JL, Ji P, Sheikhy M, Hsiao CH, Vegesna G, Shah A, Prentice K, Deering J, Wang YM, Strauss DG, Florian J. Considerations for Use of Pharmacodynamic Biomarkers to Support Biosimilar Development - (II) A Randomized Trial with IL-5 Antagonists. Clin Pharmacol Ther 2023; 113:80-89. [PMID: 36184697 DOI: 10.1002/cpt.2760] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Accepted: 09/21/2022] [Indexed: 12/24/2022]
Abstract
The US Food and Drug Administration (FDA) guidance describes how pharmacodynamic (PD) biomarkers can be used to address residual uncertainty and demonstrate no clinically meaningful differences between a proposed biosimilar and its reference product without relying on clinical efficacy end point(s). Pilot studies and modeling can inform dosing for such PD studies. To that end, we conducted a randomized, double-blinded, placebo-controlled, single-dose, parallel-arm clinical study in healthy participants to evaluate approaches to address information gaps, inform best practices for analysis of biomarker samples and study results, and apply emerging technologies in biomarker characterization. Seventy-two healthy participants (n = 8 per arm) received either placebo or 1 of 4 doses of the interleukin-5 inhibitors mepolizumab (3-24 mg) or reslizumab (0.1-0.8 mg/kg). A clinical study using doses lower than approved therapeutic doses was combined with modeling and simulation to evaluate the dose-response relationship of the biomarker eosinophils. There was no dose-response relationship for eosinophil counts due to variability, although the mepolizumab 24 mg and reslizumab 0.8 mg/kg doses showed clear effects. Published indirect-response models were used to explore eosinophil data across doses from this study and the unstudied therapeutic doses. Simulations were used to calculate typical PD metrics, such as baseline-adjusted area under the effect curve and maximum change from baseline. The simulation results demonstrate sensitivity of eosinophils as a PD biomarker and indicate doses lower than the approved doses would have PD responses overlapping with variability in the placebo arm. The simulation results further highlight the utility of model-based approaches in supporting use of PD biomarkers in biosimilar development.
Collapse
Affiliation(s)
- Victoria Gershuny
- Division of Applied Regulatory Science, Office of Clinical Pharmacology, Office of Translational Sciences, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland, USA
| | - Qin Sun
- Therapeutic Biologics Program, Office of Clinical Pharmacology, Office of Translational Sciences, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland, USA
| | - Sarah J Schrieber
- Office of Therapeutic Biologics and Biosimilars, Office of New Drugs, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland, USA
| | - Murali K Matta
- Division of Applied Regulatory Science, Office of Clinical Pharmacology, Office of Translational Sciences, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland, USA
| | - James L Weaver
- Division of Applied Regulatory Science, Office of Clinical Pharmacology, Office of Translational Sciences, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland, USA
| | - Ping Ji
- Division of Inflammation & Immune Pharmacology, Office of Clinical Pharmacology, Office of Translational Sciences, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland, USA
| | - Morasa Sheikhy
- Division of Applied Regulatory Science, Office of Clinical Pharmacology, Office of Translational Sciences, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland, USA
| | - Cheng-Hui Hsiao
- Division of Applied Regulatory Science, Office of Clinical Pharmacology, Office of Translational Sciences, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland, USA
| | - Giri Vegesna
- Division of Applied Regulatory Science, Office of Clinical Pharmacology, Office of Translational Sciences, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland, USA
| | - Aanchal Shah
- Division of Applied Regulatory Science, Office of Clinical Pharmacology, Office of Translational Sciences, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland, USA.,Booz Allen Hamilton, McLean, Virginia, USA
| | - Kristin Prentice
- Division of Applied Regulatory Science, Office of Clinical Pharmacology, Office of Translational Sciences, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland, USA.,Booz Allen Hamilton, McLean, Virginia, USA
| | | | - Yow-Ming Wang
- Therapeutic Biologics Program, Office of Clinical Pharmacology, Office of Translational Sciences, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland, USA
| | - David G Strauss
- Division of Applied Regulatory Science, Office of Clinical Pharmacology, Office of Translational Sciences, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland, USA
| | - Jeffry Florian
- Division of Applied Regulatory Science, Office of Clinical Pharmacology, Office of Translational Sciences, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland, USA
| |
Collapse
|
34
|
Abstract
Eosinophils are important effector cells in airway inflammation, as pleiotropy and heterogeneity can be linked to various pathophysiologies in asthma and chronic obstructive pulmonary disease (COPD). Sputum eosinophils can reflect the heterogeneity of airway inflammation, and owing to their traits, blood eosinophils can be a surrogate and potential biomarker for managing both conditions. Blood eosinophils are activated via the stimulation of type 2 cytokines, such as interleukin (IL)-5, IL-4/13, granulocyte-macrophage colony-stimulating factor, IL-33, and thymic stromal lymphopoietin. There is sufficient evidence to support the relationship between the blood eosinophil count and clinical outcomes, including pulmonary function decline, exacerbations, all-cause mortality, and treatment response to inhaled corticosteroids and biologics. Thus, there is growing interest in the use of blood eosinophils for the management of these diseases. Compiling recent evidence, we herein review the significance of measuring blood eosinophils in asthma and COPD.
Collapse
Affiliation(s)
- Tsunahiko Hirano
- Department of Respiratory Medicine and Infectious Disease, Graduate School of Medicine, Yamaguchi University, Japan
| | - Kazuto Matsunaga
- Department of Respiratory Medicine and Infectious Disease, Graduate School of Medicine, Yamaguchi University, Japan
| |
Collapse
|
35
|
Criado I, Nieto WG, Oliva-Ariza G, Fuentes-Herrero B, Teodosio C, Lecrevisse Q, Lopez A, Romero A, Almeida J, Orfao A. Age- and Sex-Matched Normal Leukocyte Subset Ranges in the General Population Defined with the EuroFlow Lymphocyte Screening Tube (LST) for Monoclonal B-Cell Lymphocytosis (MBL) vs. Non-MBL Subjects. Cancers (Basel) 2022; 15:cancers15010058. [PMID: 36612056 PMCID: PMC9817826 DOI: 10.3390/cancers15010058] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 12/02/2022] [Accepted: 12/20/2022] [Indexed: 12/24/2022] Open
Abstract
Reference ranges of blood-circulating leukocyte populations by, e.g., age and sex, are required for monitoring immune-cell kinetics. Most previous reports in which flow cytometry has been used to define the reference ranges for leukocyte counts included a limited number of donors and/or cell populations and/or did not consider age and sex simultaneously. Moreover, other factors not previously considered in the definition of normal ranges, such as the presence of chronic-lymphocytic-leukemia (CLL)-like low-count monoclonal B-cell lymphocytosis (MBLlo), might also be associated with an altered distribution of leukocytes in blood in association with an immunodeficiency and increased risk of infection and cancer. Here, we established reference cell-count ranges for the major populations of leukocytes in blood of non-MBL and MBLlo adult Caucasians matched by age and sex using the EuroFlow Lymphocyte Screening Tube (LST). A total of 706 Caucasian adult donors—622 non-MBL and 84 MBLlo—were recruited from the general population. Among non-MBL donors, the total leukocyte, neutrophil, basophil dendritic cell and monocyte counts remained stable through adulthood, while the absolute numbers of T- and B-cell populations and plasma cells decreased with age. The number of eosinophils and NK-cell increased over time, with clear differences according to sex for certain age ranges. In MBLlo subjects, few differences in the absolute cell counts by age (vs. non-MBL) were observed, and MBLlo men and women showed similar trends to non-MBL subjects except for the B-cell count drop observed in >70 y-men, which was more pronounced in MBLlo vs. non-MBL controls. Building robust age- and sex-matched reference ranges for the most relevant immune-cell populations in the blood of non-MBL donors is essential to appropriately identify an altered immune status in different clinical settings and highlight the altered immune-cell profiles of MBLlo subjects.
Collapse
Affiliation(s)
- Ignacio Criado
- Translational and Clinical Research Program, Centro de Investigación del Cáncer (IBMCC; CSIC–Universidad de Salamanca); Cytometry Service, NUCLEUS; Departamento de Medicina, Universidad de Salamanca (https://ror.org/02f40zc51) and Institute of Biomedical Research of Salamanca (IBSAL), 37007 Salamanca, Spain
- Biomedical Research Networking Centre Consortium of Oncology (CIBERONC), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Wendy G. Nieto
- Translational and Clinical Research Program, Centro de Investigación del Cáncer (IBMCC; CSIC–Universidad de Salamanca); Cytometry Service, NUCLEUS; Departamento de Medicina, Universidad de Salamanca (https://ror.org/02f40zc51) and Institute of Biomedical Research of Salamanca (IBSAL), 37007 Salamanca, Spain
| | - Guillermo Oliva-Ariza
- Translational and Clinical Research Program, Centro de Investigación del Cáncer (IBMCC; CSIC–Universidad de Salamanca); Cytometry Service, NUCLEUS; Departamento de Medicina, Universidad de Salamanca (https://ror.org/02f40zc51) and Institute of Biomedical Research of Salamanca (IBSAL), 37007 Salamanca, Spain
| | - Blanca Fuentes-Herrero
- Translational and Clinical Research Program, Centro de Investigación del Cáncer (IBMCC; CSIC–Universidad de Salamanca); Cytometry Service, NUCLEUS; Departamento de Medicina, Universidad de Salamanca (https://ror.org/02f40zc51) and Institute of Biomedical Research of Salamanca (IBSAL), 37007 Salamanca, Spain
| | - Cristina Teodosio
- Translational and Clinical Research Program, Centro de Investigación del Cáncer (IBMCC; CSIC–Universidad de Salamanca); Cytometry Service, NUCLEUS; Departamento de Medicina, Universidad de Salamanca (https://ror.org/02f40zc51) and Institute of Biomedical Research of Salamanca (IBSAL), 37007 Salamanca, Spain
- Biomedical Research Networking Centre Consortium of Oncology (CIBERONC), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Quentin Lecrevisse
- Translational and Clinical Research Program, Centro de Investigación del Cáncer (IBMCC; CSIC–Universidad de Salamanca); Cytometry Service, NUCLEUS; Departamento de Medicina, Universidad de Salamanca (https://ror.org/02f40zc51) and Institute of Biomedical Research of Salamanca (IBSAL), 37007 Salamanca, Spain
- Biomedical Research Networking Centre Consortium of Oncology (CIBERONC), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Antonio Lopez
- Translational and Clinical Research Program, Centro de Investigación del Cáncer (IBMCC; CSIC–Universidad de Salamanca); Cytometry Service, NUCLEUS; Departamento de Medicina, Universidad de Salamanca (https://ror.org/02f40zc51) and Institute of Biomedical Research of Salamanca (IBSAL), 37007 Salamanca, Spain
| | - Alfonso Romero
- Centro de Atención Primaria de Salud Miguel Armijo, Sanidad de Castilla y León (SACyL), 37007 Salamanca, Spain
| | - Julia Almeida
- Translational and Clinical Research Program, Centro de Investigación del Cáncer (IBMCC; CSIC–Universidad de Salamanca); Cytometry Service, NUCLEUS; Departamento de Medicina, Universidad de Salamanca (https://ror.org/02f40zc51) and Institute of Biomedical Research of Salamanca (IBSAL), 37007 Salamanca, Spain
- Biomedical Research Networking Centre Consortium of Oncology (CIBERONC), Instituto de Salud Carlos III, 28029 Madrid, Spain
- Correspondence: (J.A.); (A.O.); Tel.: +34-923-29-4811 (J.A.)
| | - Alberto Orfao
- Translational and Clinical Research Program, Centro de Investigación del Cáncer (IBMCC; CSIC–Universidad de Salamanca); Cytometry Service, NUCLEUS; Departamento de Medicina, Universidad de Salamanca (https://ror.org/02f40zc51) and Institute of Biomedical Research of Salamanca (IBSAL), 37007 Salamanca, Spain
- Biomedical Research Networking Centre Consortium of Oncology (CIBERONC), Instituto de Salud Carlos III, 28029 Madrid, Spain
- Correspondence: (J.A.); (A.O.); Tel.: +34-923-29-4811 (J.A.)
| | | |
Collapse
|
36
|
Bafadhel M, Rabe KF, Martinez FJ, Singh D, Darken P, Jenkins M, Aurivillius M, Patel M, Dorinsky P. Benefits of Budesonide/Glycopyrronium/Formoterol Fumarate Dihydrate on COPD Exacerbations, Lung Function, Symptoms, and Quality of Life Across Blood Eosinophil Ranges: A Post-Hoc Analysis of Data from ETHOS. Int J Chron Obstruct Pulmon Dis 2022; 17:3061-3073. [PMID: 36510486 PMCID: PMC9738173 DOI: 10.2147/copd.s374670] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Accepted: 11/13/2022] [Indexed: 12/12/2022] Open
Abstract
Purpose Blood eosinophil (EOS) count can guide treatment decisions for chronic obstructive pulmonary disease (COPD). In the 52-week ETHOS study (NCT02465567), budesonide/glycopyrronium/formoterol fumarate dihydrate (BGF) triple therapy at two inhaled corticosteroid doses reduced moderate/severe exacerbation rates and improved lung function, symptoms, and disease-related quality of life (QoL) versus dual therapy with glycopyrronium/formoterol fumarate dihydrate (GFF) or budesonide/formoterol fumarate dihydrate (BFF) in patients with moderate-to-very severe COPD. This subgroup analysis evaluated treatment benefits in ETHOS by baseline EOS count. Methods Patients (40-80 years) with a COPD history were randomly assigned 1:1:1:1 to receive BGF 320/14.4/10 µg, BGF 160/14.4/10 µg, GFF 14.4/10 µg, or BFF 320/10 µg via a metered-dose inhaler. This post-hoc analysis assessed endpoints by baseline EOS count using Global Initiative for Obstructive Lung Disease thresholds (<100, ≥100, ≥100-<300, ≥300 cells/mm3), and investigated continuous relationships between treatment effects and EOS count on exacerbations, symptoms, disease-related QoL, lung function, and safety. Results In the modified intention-to-treat population (n=8509), 82.6% had EOS counts ≥100 cells/mm3. BGF 320 reduced moderate/severe exacerbation rates versus GFF in the ≥100, ≥100-<300, and ≥300 subgroups; treatment differences increased with EOS count. BGF 320 improved rescue medication use and lung-function outcomes across all subgroups, and St George's Respiratory Questionnaire total score, Transition Dyspnea Index focal score, and Exacerbations of Chronic Pulmonary Disease Tool total score in all except the <100 subgroup versus GFF. Benefits of BGF 320 versus BFF were generally consistent across subgroups. Safety data were comparable across subgroups. Conclusion Benefits of BGF versus GFF were observed across EOS counts, particularly at ≥100 cells/mm³; versus BFF, benefits were largely independent of EOS. These findings confirm that benefits of ICS-containing triple therapy are not restricted to EOS counts ≥300 cells/mm³, supporting recommendations to consider triple therapy in patients with an exacerbation history and EOS counts ≥100 cells/mm³.
Collapse
Affiliation(s)
- Mona Bafadhel
- Department of Immunobiology, School of Immunology and Microbial Sciences, Faculty of Life Sciences and Medicine, King’s College London, London, UK,Correspondence: Mona Bafadhel, Department of Immunobiology, School of Immunology and Microbial Sciences, Faculty of Life Sciences and Medicine, King’s College London, 5th floor, Tower Wing, Guy’s Hospital, Great Maze Pond, London SE1 9RT, UK, Tel +44 0207 188 8717, Email
| | - Klaus F Rabe
- LungenClinic Grosshansdorf and Christian-Albrechts University Kiel, Airway Research Center North, Member of the German Center for Lung Research (DZL), Grosshansdorf, Germany
| | - Fernando J Martinez
- Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, NY, USA
| | - Dave Singh
- Medicines Evaluation Unit, University of Manchester, Manchester University NHS Foundation Hospitals Trust, Manchester, UK
| | | | | | | | | | | |
Collapse
|
37
|
Pongdee T, Manemann SM, Decker PA, Larson NB, Moon S, Killian JM, Liu H, Kita H, Bielinski SJ. Rethinking blood eosinophil counts: Epidemiology, associated chronic diseases, and increased risks of cardiovascular disease. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. GLOBAL 2022; 1:233-240. [PMID: 36466741 PMCID: PMC9718542 DOI: 10.1016/j.jacig.2022.09.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Background The distribution and determinants of blood eosinophil counts in the general population are unclear. Furthermore, whether elevated blood eosinophil counts increase risk for cardiovascular disease (CVD) and other chronic diseases, other than atopic conditions, remains uncertain. Objective We sought to describe the distribution of eosinophil counts in the general population and determine the association of eosinophil count with prevalent chronic disease and incident CVD. Methods A population-based adult cohort was followed from January 1, 2006, to December 31, 2020. Electronic health record data regarding demographic characteristics, prevalent clinical characteristics, and incident CVD were extracted. Associations between blood eosinophil counts and demographic characteristics, chronic diseases, laboratory values, and risks of incident CVD were assessed using chi-square test, ANOVA, and Cox proportional hazards regression. Results Blood eosinophil counts increased with age, body mass index, and reported smoking and tobacco use. The prevalence of chronic obstructive pulmonary disease, hypertension, cardiac arrhythmias, hyperlipidemia, diabetes mellitus, chronic kidney disease, and cancer increased as eosinophil counts increased. Eosinophil counts were significantly associated with coronary heart disease (hazard ratio [HR], 1.44; 95% CI, 1.12-1.84) and heart failure (HR, 1.62; 95% CI, 1.30-2.01) in fully adjusted models and with stroke/transient ischemic attack (HR, 1.37; 95% CI, 1.16-1.61) and CVD death (HR, 1.49; 95% CI, 1.10-2.00) in a model adjusting for age, sex, race, and ethnicity. Conclusions Blood eosinophil counts differ by demographic and clinical characteristics as well as by prevalent chronic disease. Moreover, elevated eosinophil counts are associated with risk of CVD. Further prospective investigations are needed to determine the utility of eosinophil counts as a biomarker for CVD risk.
Collapse
Affiliation(s)
- Thanai Pongdee
- Division of Allergic Diseases, Mayo Clinic, Rochester, Minn
| | - Sheila M. Manemann
- Division of Epidemiology, Department of Quantitative Health Sciences, Mayo Clinic, Rochester, Minn
| | - Paul A. Decker
- Division of Clinical Trials and Biostatistics, Department of Quantitative Health Sciences, Mayo Clinic, Rochester, Minn
| | - Nicholas B. Larson
- Division of Clinical Trials and Biostatistics, Department of Quantitative Health Sciences, Mayo Clinic, Rochester, Minn
| | - Sungrim Moon
- Department of Artificial Intelligence and Informatics, Mayo Clinic, Rochester, Minn
| | - Jill M. Killian
- Division of Clinical Trials and Biostatistics, Department of Quantitative Health Sciences, Mayo Clinic, Rochester, Minn
| | - Hongfang Liu
- Department of Artificial Intelligence and Informatics, Mayo Clinic, Rochester, Minn
| | - Hirohito Kita
- Division of Allergy, Asthma and Clinical Immunology, Mayo Clinic, Scottsdale, Ariz
- Department of Immunology, Mayo Clinic, Rochester, Minn
- Department of Immunology, Mayo Clinic, Scottsdale
| | - Suzette J. Bielinski
- Division of Epidemiology, Department of Quantitative Health Sciences, Mayo Clinic, Rochester, Minn
| |
Collapse
|
38
|
Ehrens A, Hoerauf A, Hübner MP. Eosinophils in filarial infections: Inducers of protection or pathology? Front Immunol 2022; 13:983812. [PMID: 36389745 PMCID: PMC9659639 DOI: 10.3389/fimmu.2022.983812] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 10/05/2022] [Indexed: 05/29/2024] Open
Abstract
Filariae are parasitic roundworms, which can cause debilitating diseases such as lymphatic filariasis and onchocerciasis. Lymphatic filariasis, also known as elephantiasis, and onchocerciasis, commonly referred to as river blindness, can lead to stigmatizing pathologies and present a socio-economic burden for affected people and their endemic countries. Filariae typically induce a type 2 immune response, which is characterized by cytokines, i.e., IL-4, IL-5 and IL-13 as well as type 2 immune cells including alternatively activated macrophages, innate lymphoid cells and Th2 cells. However, the hallmark characteristic of filarial infections is a profound eosinophilia. Eosinophils are innate immune cells and pivotal in controlling helminth infections in general and filarial infections in particular. By modulating the function of other leukocytes, eosinophils support and drive type 2 immune responses. Moreover, as primary effector cells, eosinophils can directly attack filariae through the release of granules containing toxic cationic proteins with or without extracellular DNA traps. At the same time, eosinophils can be a driving force for filarial pathology as observed during tropical pulmonary eosinophilia in lymphatic filariasis, in dermatitis in onchocerciasis patients as well as adverse events after treatment of onchocerciasis patients with diethylcarbamazine. This review summarizes the latest findings of the importance of eosinophil effector functions including the role of eosinophil-derived proteins in controlling filarial infections and their impact on filarial pathology analyzing both human and experimental animal studies.
Collapse
Affiliation(s)
- Alexandra Ehrens
- Institute for Medical Microbiology, Immunology and Parasitology, University Hospital Bonn, Bonn, Germany
- German Center for Infection Research (DZIF), Partner Site Bonn-Cologne, Bonn, Germany
| | - Achim Hoerauf
- Institute for Medical Microbiology, Immunology and Parasitology, University Hospital Bonn, Bonn, Germany
- German Center for Infection Research (DZIF), Partner Site Bonn-Cologne, Bonn, Germany
| | - Marc P. Hübner
- Institute for Medical Microbiology, Immunology and Parasitology, University Hospital Bonn, Bonn, Germany
- German Center for Infection Research (DZIF), Partner Site Bonn-Cologne, Bonn, Germany
| |
Collapse
|
39
|
Siordia-Millán S, Torres-Ramos S, Salido-Ruiz RA, Hernández-Gordillo D, Pérez-Gutiérrez T, Román-Godínez I. Pneumonia and Pulmonary Thromboembolism Classification Using Electronic Health Records. Diagnostics (Basel) 2022; 12:diagnostics12102536. [PMID: 36292225 PMCID: PMC9601338 DOI: 10.3390/diagnostics12102536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 10/16/2022] [Accepted: 10/17/2022] [Indexed: 11/16/2022] Open
Abstract
Pneumonia and pulmonary thromboembolism (PTE) are both respiratory diseases; their diagnosis is difficult due to their similarity in symptoms, medical subjectivity, and the large amount of information from different sources necessary for a correct diagnosis. Analysis of such clinical data using computational tools could help medical staff reduce time, increase diagnostic certainty, and improve patient care during hospitalization. In addition, no studies have been found that analyze all clinical information on the Mexican population in the Spanish language. Therefore, this work performs automatic diagnosis of pneumonia and pulmonary thromboembolism using machine-learning tools along with clinical laboratory information (structured data) and clinical text (unstructured data) obtained from electronic health records. A cohort of 173 clinical records was obtained from the Mexican Social Security Institute. The data were preprocessed, transformed, and adjusted to be analyzed using several machine-learning algorithms. For structured data, naïve Bayes, support vector machine, decision trees, AdaBoost, random forest, and multilayer perceptron were used; for unstructured data, a BiLSTM was used. K-fold cross-validation and leave-one-out were used for evaluation of structured data, and hold-out was used for unstructured data; additionally, 1-vs.-1 and 1-vs.-rest approaches were used. Structured data results show that the highest AUC-ROC was achieved by the naïve Bayes algorithm classifying PTE vs. pneumonia (87.0%), PTE vs. control (75.1%), and pneumonia vs. control (85.2%) with the 1-vs.-1 approach; for the 1-vs.-rest approach, the best performance was reported in pneumonia vs. rest (86.3%) and PTE vs. rest (79.7%) using naïve Bayes, and control vs. diseases (79.8%) using decision trees. Regarding unstructured data, the results do not present a good AUC-ROC; however, the best F1-score were scored for control vs. disease (72.7%) in the 1-vs.-rest approach and control vs. pneumonia (63.6%) in the 1-to-1 approach. Additionally, several decision trees were obtained to identify important attributes for automatic diagnosis for structured data, particularly for PTE vs. pneumonia. Based on the experiments, the structured datasets present the highest values. Results suggest using naïve Bayes and structured data to automatically diagnose PTE vs. pneumonia. Moreover, using decision trees allows the observation of some decision criteria that the medical staff could consider for diagnosis.
Collapse
Affiliation(s)
- Sinhue Siordia-Millán
- División de Tecnologías para la Integración Ciber-Humana, Centro Universitario de Ciencias Exactas e Ingenierías, Universidad de Guadalajara, Guadalajara 44430, Mexico
| | - Sulema Torres-Ramos
- División de Tecnologías para la Integración Ciber-Humana, Centro Universitario de Ciencias Exactas e Ingenierías, Universidad de Guadalajara, Guadalajara 44430, Mexico
| | - Ricardo A. Salido-Ruiz
- División de Tecnologías para la Integración Ciber-Humana, Centro Universitario de Ciencias Exactas e Ingenierías, Universidad de Guadalajara, Guadalajara 44430, Mexico
| | - Daniel Hernández-Gordillo
- Unidad Médica De Alta Especialidad, Hospital de Especialidades, Centro Médico Nacional De Occidente, Guadalajara 44349, Mexico
| | - Tracy Pérez-Gutiérrez
- Unidad Médica De Alta Especialidad, Hospital de Especialidades, Centro Médico Nacional De Occidente, Guadalajara 44349, Mexico
| | - Israel Román-Godínez
- División de Tecnologías para la Integración Ciber-Humana, Centro Universitario de Ciencias Exactas e Ingenierías, Universidad de Guadalajara, Guadalajara 44430, Mexico
- Correspondence:
| |
Collapse
|
40
|
Khalfaoui L, Symon FA, Couillard S, Hargadon B, Chaudhuri R, Bicknell S, Mansur AH, Shrimanker R, Hinks TC, Pavord ID, Fowler SJ, Brown V, McGarvey LP, Heaney LG, Austin CD, Howarth PH, Arron JR, Choy DF, Bradding P. Airway remodelling rather than cellular infiltration characterizes both type2 cytokine biomarker-high and -low severe asthma. Allergy 2022; 77:2974-2986. [PMID: 35579040 PMCID: PMC9790286 DOI: 10.1111/all.15376] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 03/31/2022] [Accepted: 04/19/2022] [Indexed: 01/27/2023]
Abstract
BACKGROUND The most recognizable phenotype of severe asthma comprises people who are blood eosinophil and FeNO-high, driven by type 2 (T2) cytokine biology, which responds to targeted biological therapies. However, in many people with severe asthma, these T2 biomarkers are suppressed but poorly controlled asthma persists. The mechanisms driving asthma in the absence of T2 biology are poorly understood. OBJECTIVES To explore airway pathology in T2 biomarker-high and -low severe asthma. METHODS T2 biomarker-high severe asthma (T2-high, n = 17) was compared with biomarker-intermediate (T2-intermediate, n = 21) and biomarker-low (T2-low, n = 20) severe asthma and healthy controls (n = 28). Bronchoscopy samples were processed for immunohistochemistry, and sputum for cytokines, PGD2 and LTE4 measurements. RESULTS Tissue eosinophil, neutrophil and mast cell counts were similar across severe asthma phenotypes and not increased when compared to healthy controls. In contrast, the remodelling features of airway smooth muscle mass and MUC5AC expression were increased in all asthma groups compared with health, but similar across asthma subgroups. Submucosal glands were increased in T2-intermediate and T2-low asthma. In spite of similar tissue cellular inflammation, sputum IL-4, IL-5 and CCL26 were increased in T2-high versus T2-low asthma, and several further T2-associated cytokines, PGD2 and LTE4 , were increased in T2-high and T2-intermediate asthma compared with healthy controls. CONCLUSIONS Eosinophilic tissue inflammation within proximal airways is suppressed in T2 biomarker-high and T2-low severe asthma, but inflammatory and structural cell activation is present, with sputum T2-associated cytokines highest in T2 biomarker-high patients. Airway remodelling persists and may be important for residual disease expression beyond eosinophilic exacerbations. Registered at ClincialTrials.gov: NCT02883530.
Collapse
Affiliation(s)
- Latifa Khalfaoui
- Department of Respiratory Sciences, Leicester Respiratory NIHR BRC, Glenfield HospitalUniversity of LeicesterLeicesterUK
| | - Fiona A. Symon
- Department of Respiratory Sciences, Leicester Respiratory NIHR BRC, Glenfield HospitalUniversity of LeicesterLeicesterUK
| | - Simon Couillard
- NIHR Oxford Respiratory BRC, Nuffield Department of MedicineUniversity of OxfordOxfordUK
| | - Beverley Hargadon
- Department of Respiratory Sciences, Leicester Respiratory NIHR BRC, Glenfield HospitalUniversity of LeicesterLeicesterUK
| | - Rekha Chaudhuri
- Gartnavel General Hospital, Glasgow, and Institute of Infection, Immunity and InflammationUniversity of GlasgowGlasgowUK
| | - Steve Bicknell
- Gartnavel General Hospital, Glasgow, and Institute of Infection, Immunity and InflammationUniversity of GlasgowGlasgowUK
| | - Adel H. Mansur
- University of Birmingham and Heartlands HospitalUniversity Hospitals Birmingham NHS Foundation TrustBirminghamUK
| | - Rahul Shrimanker
- NIHR Oxford Respiratory BRC, Nuffield Department of MedicineUniversity of OxfordOxfordUK
| | - Timothy S. C. Hinks
- NIHR Oxford Respiratory BRC, Nuffield Department of MedicineUniversity of OxfordOxfordUK
| | - Ian D. Pavord
- NIHR Oxford Respiratory BRC, Nuffield Department of MedicineUniversity of OxfordOxfordUK
| | - Stephen J. Fowler
- School of Biological Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre and NIHR Manchester Biomedical Research Centre, Manchester University Hospitals NHS Foundation TrustUniversity of ManchesterManchesterUK
| | - Vanessa Brown
- Wellcome‐Wolfson‐ Centre for Experimental MedicineQueen's University Belfast School of Medicine Dentistry and Biomedical SciencesBelfastUK
| | - Lorcan P. McGarvey
- Wellcome‐Wolfson‐ Centre for Experimental MedicineQueen's University Belfast School of Medicine Dentistry and Biomedical SciencesBelfastUK
| | - Liam G. Heaney
- Wellcome‐Wolfson‐ Centre for Experimental MedicineQueen's University Belfast School of Medicine Dentistry and Biomedical SciencesBelfastUK
| | | | - Peter H. Howarth
- School of Clinical and Experimental Sciences, NIHR Southampton Biomedical Research CentreUniversity of SouthamptonSouthamptonUK
| | | | | | - Peter Bradding
- Department of Respiratory Sciences, Leicester Respiratory NIHR BRC, Glenfield HospitalUniversity of LeicesterLeicesterUK
| |
Collapse
|
41
|
[COPD and eosinophils]. Rev Mal Respir 2022; 39:685-697. [PMID: 36055950 DOI: 10.1016/j.rmr.2022.08.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 08/07/2022] [Indexed: 11/23/2022]
Abstract
COPD is a major cause of morbidity and mortality worldwide. As research progresses, new patient phenotypes are being defined, providing hope for more personalized management of the disease. A significant proportion of patients present with an increased level of blood eosinophils, which may reflect bronchial eosinophilic inflammation. The aims of this article are to characterize the role of eosinophils in COPD in terms of pathophysiology, associated respiratory symptoms, impact on treatment and, finally, to consider different future treatment options.
Collapse
|
42
|
Singh D, Agusti A, Martinez FJ, Papi A, Pavord ID, Wedzicha JA, Vogelmeier CF, Halpin DMG. Blood Eosinophils and Chronic Obstructive Pulmonary Disease: A GOLD Science Committee 2022 Review. Am J Respir Crit Care Med 2022; 206:17-24. [PMID: 35737975 DOI: 10.1164/rccm.202201-0209pp] [Citation(s) in RCA: 55] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
COPD is a heterogeneous condition. Some patients benefit from treatment with inhaled corticosteroids (ICS) but this requires a precision medicine approach, based on clinical characteristics (phenotyping) and biological information (endotyping) in order to select patients most likely to benefit. The GOLD 2019 report recommended using exacerbation history combined with blood eosinophil counts (BEC) to identify such patients. Importantly, the relationship between BEC and ICS effects is continuous; no / small effects are observed at lower BEC, with increasing effects at higher BEC. The GOLD 2022 report has added additional evidence and recommendations concerning the use of BEC in COPD in clinical practice. Notably, associations have been demonstrated in COPD patients between higher BEC and increased levels of type-2 inflammation in the lungs. These differences in type-2 inflammation can explain the differential ICS response according to BEC. Additionally, lower BEC are associated with greater presence of proteobacteria, notably haemophilus, and increased bacterial infections and pneumonia risk. These observations support management strategies that use BEC to help identify subgroups with increased ICS response (higher BEC) or increased risk of bacterial infection (lower BEC). Recent studies in younger individuals without COPD have also shown that higher BEC are associated with increased risk of FEV1 decline and the development of COPD. Here we discuss and summarise the GOLD 2022 recommendations concerning the use of BEC as a biomarker that can facilitate a personalised management approach in COPD.
Collapse
Affiliation(s)
- Dave Singh
- The University of Manchester, 5292, Manchester, United Kingdom of Great Britain and Northern Ireland;
| | - Alvar Agusti
- Fundacio Clinic per a la Recerca Biomedica, 189152, Barcelona, Spain
| | | | - Alberto Papi
- University of Ferrara, Research Centre on Asthma and COPD, Ferrara, Italy
| | - Ian D Pavord
- Oxford University, Nuffield department of Medicine, Respiratory Medicine, Oxford, United Kingdom of Great Britain and Northern Ireland
| | - Jadwiga A Wedzicha
- Imperial College London, National Heart and Lung Institute, London, United Kingdom of Great Britain and Northern Ireland
| | | | - David M G Halpin
- University of Exeter College of Medicine, University of Exeter Medical School, Exeter, United Kingdom of Great Britain and Northern Ireland.,Royal Devon and Exeter Hospital, 159028, Exeter, United Kingdom of Great Britain and Northern Ireland
| |
Collapse
|
43
|
Akış S, Öztürk UK, Keleş E, Alınca CM, Api M, Kabaca C. The percentage of peripheral eosinophils as a sensitive marker for differentiating FIGO grade in endometrial adenocarcinomas. J Turk Ger Gynecol Assoc 2022; 23:99-105. [PMID: 35263838 PMCID: PMC9161002 DOI: 10.4274/jtgga.galenos.2022.2021-9-10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
Objective: Studies on eosinophils have mostly been directed to parasitic infections and allergic diseases, but the role of eosinophils in oncology has been largely ignored. Eosinophils are an important modulator of the immune response and components of the inflammatory process against the tumor. This study was performed to investigate the pre-operative peripheral blood eosinophil percentages in patients with a histopathologically diagnosed pure endometrioid type endometrial carcinoma. Material and Methods: Patients’ data were analyzed in two groups as present/absent according to whether there are tumor metastases in the adnexes, lymph nodes, cervical stroma, and whether there was lymphovascular space invasion. FIGO grade was taken as the basis of the tumor grade: Low-grade equated to grade 1 or 2, and high-grade equated to grade 3. The requirement for lymph node dissection was based on the Mayo criteria. Results: The data of a total of 268 patients were included. The mean percentage of eosinophils in high-grade patients (n=29) was 2.75±0.35, and was significantly higher than the mean percentage of eosinophils of found in low-grade patients (n=239), which was 1.79±0.09 (p=0.013). Receiver operator curve analysis showed that a cut-off eosinophil percentage of 1.95% resulted in a sensitivity of 62% and specificity of 67% (p=0.004). Conclusion: Eosinophil percentages, which are a simple, easily accessible, and inexpensive can be an important pre-operative predictive tool. Eosinophil percentages can be used in determining the need for surgical staging in endometrial cancer.
Collapse
|
44
|
Ancel J, Guecamburu M, Marques Da Silva V, Schilfarth P, Boyer L, Pilette C, Martin C, Devillier P, Berger P, Zysman M, Le Rouzic O, Gonzalez-Bermejo J, Degano B, Burgel PR, Ahmed E, Roche N, Deslee G. [Take-home messages from the COPD 2021 biennial of the French Society of Respiratory Diseases. Understanding to so as to better innovate]. Rev Mal Respir 2022; 39:427-441. [PMID: 35568574 DOI: 10.1016/j.rmr.2022.03.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Accepted: 03/23/2022] [Indexed: 02/07/2023]
Abstract
INTRODUCTION The first COPD biennial organized by the French Society of Respiratory Diseases (SPLF) took place on 17 December 2021. STATE OF THE ART The objective of the biennial was to discuss current knowledge regarding COPD pathophysiology, current treatments, research development, and future therapeutic approaches. PERSPECTIVES The different lecturers laid emphasis on the complexity of pathophysiologic mechanisms including bronchial, bronchiolar and parenchymal alterations, and also dwelt on the role of microbiota composition in COPD pathenogenesis. They pointed out that addition to inhaled treatments, ventilatory support and endoscopic approaches have been increasingly optimized. The development of new therapeutic pathways such as biotherapy and cell therapy (stem cells…) call for further exploration. CONCLUSIONS The dynamism of COPD research was repeatedly underlined, and needs to be further reinforced, the objective being to "understand so as to better innovate" so as to develop effective new strategies for treatment and management of COPD.
Collapse
Affiliation(s)
- J Ancel
- Inserm UMRS-1250, service de pneumologie, université Reims Champagne Ardenne, hôpital Maison Blanche, Reims, France
| | - M Guecamburu
- Service des maladies respiratoires, hôpital du Haut-Lévêque, CHU de Bordeaux, Bordeaux, France
| | - V Marques Da Silva
- Inserm U955, FHU SENEC, université Paris-Est Créteil, institut Mondor de recherche biomédicale, équipe GEIC2O, Créteil, France
| | - P Schilfarth
- Service des maladies respiratoires, hôpital du Haut-Lévêque, CHU de Bordeaux, Bordeaux, France; Inserm U1045, centre de recherche cardio-thoracique de Bordeaux, Pessac, France
| | - L Boyer
- Département de physiologie-explorations fonctionnelles, université Paris-Est, hôpital Henri-Mondor, AP-HP, UMR S955, FHU SENEC, UPEC, Créteil, France
| | - C Pilette
- Département de pneumologie, université catholique de Louvain, cliniques universitaires Saint-Luc et institut de recherche expérimentale et clinique, Bruxelles, Belgique
| | - C Martin
- Inserm U1016, service de pneumologie, AP-HP Paris, hôpital Cochin et institut Cochin, université de Paris, Paris, France
| | - P Devillier
- Département des maladies respiratoires, unité de recherche en pharmacologie respiratoire, VIM Suresnes (UMR 0892, université Paris-Saclay), hôpital Foch, Suresnes, France
| | - P Berger
- Service d'exploration fonctionnelle respiratoire, département de pharmacologie, centre de recherche cardiothoracique, U1045, CIC 1401, Pessac, France
| | - M Zysman
- Service des maladies respiratoires, hôpital du Haut-Lévêque, CHU de Bordeaux, Bordeaux, France; Inserm U1045, centre de recherche cardio-thoracique de Bordeaux, Pessac, France
| | - O Le Rouzic
- Inserm, CIIL Center for infection and immunity of Lille, université de Lille, CHU de Lille, pneumologie et immuno-allergologie, Institut Pasteur de Lille, U1019 - UMR9017, Lille, France
| | - J Gonzalez-Bermejo
- Inserm, UMRS115 neurophysiologie respiratoire expérimentale et clinique, service de pneumologie, médecine intensive et réanimation (département R3S), Sorbonne université, groupe hospitalier universitaire AP-HP, Sorbonne Université, site Pitié-Salpêtrière, Paris, France
| | - B Degano
- Inserm 1042, service de pneumologie physiologie, CHU de Grenoble, Grenoble, France
| | - P-R Burgel
- Inserm U1016, service de pneumologie, AP-HP Paris, hôpital Cochin et institut Cochin, université de Paris, Paris, France
| | - E Ahmed
- Département des maladies respiratoires, IRMB, université de Montpellier, CHU de Montpellier, Montpellier, France
| | - N Roche
- Inserm U1016, service de pneumologie, AP-HP Paris, hôpital Cochin et institut Cochin, université de Paris, Paris, France
| | - G Deslee
- Inserm UMRS-1250, service de pneumologie, université Reims Champagne Ardenne, hôpital Maison Blanche, Reims, France.
| |
Collapse
|
45
|
Kölli F, Breyer MK, Hartl S, Burghuber O, Wouters EFM, Sigsgaard T, Pohl W, Kohlböck G, Breyer-Kohansal R. Aero-Allergen Sensitization in the General Population: Longitudinal Analyses of the LEAD (Lung Heart Social Body) Study. J Asthma Allergy 2022; 15:461-473. [PMID: 35431559 PMCID: PMC9012316 DOI: 10.2147/jaa.s349614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 03/04/2022] [Indexed: 11/23/2022] Open
Affiliation(s)
- Franziska Kölli
- Sigmund Freud University, Faculty of Medicine, Vienna, Austria
- Ludwig Boltzmann Institute for Lung Health, Vienna, Austria
- Correspondence: Franziska Kölli, Ludwig Boltzmann Institute for Lung Health, Sanatroium Street 2, Vienna, 1140, Austria, Tel +436645127500, Email
| | - Marie-Kathrin Breyer
- Ludwig Boltzmann Institute for Lung Health, Vienna, Austria
- Department of Respiratory and Critical Care Medicine, Clinic Penzing, Vienna, Austria
| | - Sylvia Hartl
- Sigmund Freud University, Faculty of Medicine, Vienna, Austria
- Ludwig Boltzmann Institute for Lung Health, Vienna, Austria
- Department of Respiratory and Critical Care Medicine, Clinic Penzing, Vienna, Austria
| | - Otto Burghuber
- Sigmund Freud University, Faculty of Medicine, Vienna, Austria
- Ludwig Boltzmann Institute for Lung Health, Vienna, Austria
| | - Emiel F M Wouters
- Ludwig Boltzmann Institute for Lung Health, Vienna, Austria
- NUTRIM School of Nutrition and Translational Research in Metabolism, University Medical Center, Maastricht, The Netherlands
| | - Torben Sigsgaard
- Department of Public Health, Section of Environment, Occupation & Health, Aarhus University, Aarhus, Denmark
| | - Wolfgang Pohl
- Karl Landsteiner Institute for Clinical and Experimental Pneumology, Clinic Hietzing, Vienna, Austria
| | | | - Robab Breyer-Kohansal
- Ludwig Boltzmann Institute for Lung Health, Vienna, Austria
- Department of Respiratory and Critical Care Medicine, Clinic Penzing, Vienna, Austria
| |
Collapse
|
46
|
Nogami K, Nagao M, Takase T, Yasuda Y, Yamada S, Matsunaga M, Hoshi M, Hamada K, Kuwabara Y, Tsugawa T, Fujisawa T. House Dust Mite Subcutaneous Immunotherapy and Lung Function Trajectory in Children and Adolescents with Asthma. CHILDREN (BASEL, SWITZERLAND) 2022; 9:children9040487. [PMID: 35455531 PMCID: PMC9028398 DOI: 10.3390/children9040487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 03/24/2022] [Accepted: 03/28/2022] [Indexed: 11/27/2022]
Abstract
Background: Allergen-specific immunotherapy is currently the only disease-modifying treatment for allergic asthma, and it has been shown to improve control of asthma while reducing both drug use and asthma exacerbations. However, its effects on lung function—especially its long-term effects—remain controversial. We aimed to identify factors associated with a possible beneficial effect of allergen-specific immunotherapy on lung function in asthma by retrospectively evaluating the long-term changes in lung function in children with asthma who received house dust mite subcutaneous immunotherapy (HDM-SCIT). Methods: We enrolled children with asthma who had undergone HDM-SCIT for more than 1 year. Clinical information and lung function measurements were retrieved from the electronic chart system. To characterize the trajectory of lung function change, we performed linear regression analysis to evaluate the maximal expiratory flow at 50% of the forced vital capacity during two periods: before and during HDM-SCIT. Slopes from a least-squares regression line for the two periods, i.e., S1 before HDM-SCIT and S2 during HDM-SCIT, were compared. The subjects were then classified into two groups: an improving group (Group I) defined as S2 − S1 > 0, and a declining group (Group D) defined as S2 − S1 < 0. The clinical factors at the start of HDM-SCIT were compared between the two groups. Results: A total of 16 patients were analyzed. Eight patients were classified into each of Group I and Group D. The mean ages were 10.5 and 11.8 years, and the mean treatment periods were 4.1 and 3.9 years. Group I had a significantly lower blood eosinophil count and a significantly higher HDM-specific IgE level than Group D. Logistic regression showed a strong relationship between those two markers and the lung function trajectory. Conclusion: Control of the blood eosinophil count in highly HDM-sensitized patients may increase the beneficial effect of HDM-SCIT on lung function.
Collapse
Affiliation(s)
- Kazutaka Nogami
- Department of Pediatrics, Sapporo Medical University School of Medicine, Sapporo-shi 060-8543, Japan; (K.N.); (T.T.)
- Allergy Center and Department of Clinical Research, Mie National Hospital, Tsu 514-0125, Japan; (M.N.); (T.T.); (Y.Y.); (S.Y.); (M.M.); (M.H.); (K.H.); (Y.K.)
| | - Mizuho Nagao
- Allergy Center and Department of Clinical Research, Mie National Hospital, Tsu 514-0125, Japan; (M.N.); (T.T.); (Y.Y.); (S.Y.); (M.M.); (M.H.); (K.H.); (Y.K.)
| | - Takafumi Takase
- Allergy Center and Department of Clinical Research, Mie National Hospital, Tsu 514-0125, Japan; (M.N.); (T.T.); (Y.Y.); (S.Y.); (M.M.); (M.H.); (K.H.); (Y.K.)
| | - Yasuaki Yasuda
- Allergy Center and Department of Clinical Research, Mie National Hospital, Tsu 514-0125, Japan; (M.N.); (T.T.); (Y.Y.); (S.Y.); (M.M.); (M.H.); (K.H.); (Y.K.)
| | - Shingo Yamada
- Allergy Center and Department of Clinical Research, Mie National Hospital, Tsu 514-0125, Japan; (M.N.); (T.T.); (Y.Y.); (S.Y.); (M.M.); (M.H.); (K.H.); (Y.K.)
| | - Mayumi Matsunaga
- Allergy Center and Department of Clinical Research, Mie National Hospital, Tsu 514-0125, Japan; (M.N.); (T.T.); (Y.Y.); (S.Y.); (M.M.); (M.H.); (K.H.); (Y.K.)
| | - Miyuki Hoshi
- Allergy Center and Department of Clinical Research, Mie National Hospital, Tsu 514-0125, Japan; (M.N.); (T.T.); (Y.Y.); (S.Y.); (M.M.); (M.H.); (K.H.); (Y.K.)
| | - Kana Hamada
- Allergy Center and Department of Clinical Research, Mie National Hospital, Tsu 514-0125, Japan; (M.N.); (T.T.); (Y.Y.); (S.Y.); (M.M.); (M.H.); (K.H.); (Y.K.)
| | - Yu Kuwabara
- Allergy Center and Department of Clinical Research, Mie National Hospital, Tsu 514-0125, Japan; (M.N.); (T.T.); (Y.Y.); (S.Y.); (M.M.); (M.H.); (K.H.); (Y.K.)
- Department of Pediatrics, Ehime University Graduate School of Medicine, Toon 791-0295, Japan
| | - Takeshi Tsugawa
- Department of Pediatrics, Sapporo Medical University School of Medicine, Sapporo-shi 060-8543, Japan; (K.N.); (T.T.)
| | - Takao Fujisawa
- Allergy Center and Department of Clinical Research, Mie National Hospital, Tsu 514-0125, Japan; (M.N.); (T.T.); (Y.Y.); (S.Y.); (M.M.); (M.H.); (K.H.); (Y.K.)
- Correspondence: ; Tel.: +81-59-232-2531
| |
Collapse
|
47
|
Factors Influencing the Stability of Blood Eosinophils Counts in Chronic Obstructive Pulmonary Disease Patients. Can Respir J 2022; 2022:8369521. [PMID: 35387448 PMCID: PMC8977339 DOI: 10.1155/2022/8369521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Revised: 03/02/2022] [Accepted: 03/07/2022] [Indexed: 11/17/2022] Open
Abstract
Blood eosinophil (EOS) has recently been recognized as a biomarker for chronic obstructive pulmonary disease (COPD) patients. However, few studies have concentrated on the stability of blood eosinophil counts (BEC), and those studies have produced varying results. With further research, we have found minor drawbacks and vulnerabilities that lead to the variability of the results. This paper enumerates several areas of relevant research with varying conclusions to further investigate the stability of BEC in COPD patients.
Collapse
|
48
|
Janson C, Bjermer L, Lehtimäki L, Kankaanranta H, Karjalainen J, Altraja A, Yasinska V, Aarli B, Rådinger M, Hellgren J, Lofdahl M, Howarth PH, Porsbjerg C. Eosinophilic airway diseases: basic science, clinical manifestations and future challenges. Eur Clin Respir J 2022; 9:2040707. [PMID: 35251534 PMCID: PMC8896196 DOI: 10.1080/20018525.2022.2040707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Eosinophils have a broad range of functions, both homeostatic and pathological, mediated through an array of cell surface receptors and specific secretory granules that promote interactions with their microenvironment. Eosinophil development, differentiation, activation, survival and recruitment are closely regulated by a number of type 2 cytokines, including interleukin (IL)-5, the key driver of eosinophilopoiesis. Evidence shows that type 2 inflammation, driven mainly by interleukin (IL)-4, IL-5 and IL-13, plays an important role in the pathophysiology of eosinophilic airway diseases, including asthma, chronic rhinosinusitis with nasal polyps, eosinophilic granulomatosis with polyangiitis and hypereosinophilic syndrome. Several biologic therapies have been developed to suppress type 2 inflammation, namely mepolizumab, reslizumab, benralizumab, dupilumab, omalizumab and tezepelumab. While these therapies have been associated with clinical benefits in a range of eosinophilic diseases, their development has highlighted several challenges and directions for future research. These include the need for further information on disease progression and identification of treatable traits, including clinical characteristics or biomarkers that will improve the prediction of treatment response. The Nordic countries have a long tradition of collaboration using patient registries and Nordic asthma registries provide unique opportunities to address these research questions. One example of such a registry is the NORdic Dataset for aSThmA Research (NORDSTAR), a longitudinal population-based dataset containing all 3.3 million individuals with asthma from four Nordic countries (Denmark, Finland, Norway and Sweden). Large-scale, real-world registry data such as those from Nordic countries may provide important information regarding the progression of eosinophilic asthma, in addition to clinical characteristics or biomarkers that could allow targeted treatment and ensure optimal patient outcomes.
Collapse
Affiliation(s)
- Christer Janson
- Department of Medical Sciences: Respiratory, Allergy and Sleep Research, Uppsala University, Uppsala, Sweden
| | - Leif Bjermer
- Department of Respiratory Medicine and Allergology, Skane University Hospital, Lund, Sweden
| | - Lauri Lehtimäki
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Allergy Centre, Tampere University Hospital, Tampere, Finland
| | - Hannu Kankaanranta
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Krefting Research Centre, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden.,Department of Respiratory Medicine, Seinäjoki Central Hospital, Seinäjoki, Finland
| | - Jussi Karjalainen
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Allergy Centre, Tampere University Hospital, Tampere, Finland
| | - Alan Altraja
- Department of Pulmonology, University of Tartu and Lung Clinic, Tartu University Hospital, Tartu, Estonia
| | - Valentyna Yasinska
- Department of Respiratory Medicine and Allergy, Karolinska University Hospital, Huddinge, Sweden
| | - Bernt Aarli
- Department of Clinical Science, University of Bergen and Department of Thoracic Medicine, Haukeland University Hospital, Bergen, Norway
| | - Madeleine Rådinger
- Krefting Research Centre, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Johan Hellgren
- Department of Otorhinolaryngology, University of Gothenburg, Gothenburg, Sweden
| | | | - Peter H Howarth
- Respiratory Medical Franchise, GSK, Brentford, Middlesex, UK
| | - Celeste Porsbjerg
- Department of Respiratory Medicine, Bispebjerg Hospital and Copenhagen University, Copenhagen, Denmark
| |
Collapse
|
49
|
Oppenheimer J, Hoyte FCL, Phipatanakul W, Silver J, Howarth P, Lugogo NL. Allergic and eosinophilic asthma in the era of biomarkers and biologics: similarities, differences and misconceptions. Ann Allergy Asthma Immunol 2022; 129:169-180. [PMID: 35272048 DOI: 10.1016/j.anai.2022.02.021] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 02/18/2022] [Accepted: 02/22/2022] [Indexed: 10/18/2022]
Abstract
OBJECTIVE Severe asthma is associated with substantial personal and economic burden; maintaining disease control is the key management goal. Increased understanding of asthma heterogeneity and development of type 2 (T2)-targeting biologics has substantially advanced disease management and outcomes; however, despite both being driven by T2 inflammation, allergic and eosinophilic asthma have different treatment recommendations. We sought to better understand the similarities and differences between allergic and eosinophilic asthma and highlight where misconceptions may arise. DATA SOURCES Published articles, pivotal trials, post hoc analyses, and asthma clinical guidelines sourced from PubMed. STUDY SELECTIONS Sources reporting allergic and eosinophilic asthma classifications, disease mechanisms, and biomarkers associated with treatment response. RESULTS This review highlights that severe allergic and eosinophilic asthma are both driven by T2 inflammation with eosinophils playing a cardinal role. Despite this overlap, treatment recommendations differ based on asthma classification. T2 cytokine gene expression is a reasonably well-established research tool, but not a well-established biomarker in clinical practice, unlike blood eosinophil counts, fractional exhaled nitric oxide, and immunoglobulin E; the clinical relevance of immunoglobulin E as a predictive biomarker remains unclear. CONCLUSION Asthma classifications that can be easily characterized at patient level to ensure accurate diagnosis, predict disease trajectory, and treatment response are required. The current dichotomy of allergic and eosinophilic asthma classifications is likely too simplistic, given the similar eosinophil-mediated disease pathophysiology in both classifications. Our results provide future directions to guide clinically meaningful interpretation of asthma endophenotypes, which may improve understanding of severe asthma characterization and aid future advances in defining responders more precisely with personalized medicine approaches.
Collapse
Affiliation(s)
| | - Flavia C L Hoyte
- National Jewish Health and University of Colorado, Denver, Colorado
| | - Wanda Phipatanakul
- Harvard Medical School and Boston Children's Hospital, Boston, Massachusetts
| | - Jared Silver
- US Medical Affairs-Respiratory, GlaxoSmithKline, Research Triangle Park, North Carolina
| | - Peter Howarth
- Respiratory Medical Franchise, GlaxoSmithKline, Brentford, United Kingdom
| | - Njira L Lugogo
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, University of Michigan School of Medicine, Ann Arbor, Michigan
| |
Collapse
|
50
|
Miravitlles M, Soler-Cataluña JJ, Soriano JB, García-Río F, de Lucas P, Alfageme I, Casanova C, Rodríguez González-Moro JM, Sánchez-Herrero MG, Ancochea J, Cosío BG. Determinants of blood eosinophil levels in the general population and patients with COPD: a population-based, epidemiological study. Respir Res 2022; 23:49. [PMID: 35248041 PMCID: PMC8897916 DOI: 10.1186/s12931-022-01965-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Accepted: 02/20/2022] [Indexed: 11/15/2022] Open
Abstract
Background Blood eosinophils are considered a biomarker for the treatment of chronic obstructive pulmonary disease (COPD). Population-based studies are needed to better understand the determinants of the blood eosinophil count (BEC) in individuals with and without COPD.
Methods EPISCAN II is a multicentre, cross-sectional, population-based epidemiological study aimed at investigating the prevalence and determinants of COPD in Spain. Study subjects were randomly selected from the general population, and COPD was defined by a post-bronchodilator FEV1/FVC < 0.7. For the pre-specified outcomes related to BEC, the first 35 COPD and 35 non-COPD subjects were consecutively recruited in 12 of the participating centres with the objective of analysing 400 individuals in each group. Baseline BEC and its association with demographic, clinical and functional variables were analysed. Results A total of 326 COPD and 399 non-COPD subjects were included in the analysis. The mean age (standard deviation [SD]) was 63.2 years (11.0), 46.3% were male, and 27.6% were active smokers. BEC was significantly higher in individuals with COPD [192 cells/μL (SD: 125) vs. 160 cells/μL (SD: 114); p = 0.0003]. In a stepwise multivariate model, being male, active smoker and having a previous diagnosis of asthma were independently associated with having a higher BEC. Conclusions This population-based study estimated the distribution of eosinophils in the healthy adult population and concluded that COPD patients have a significantly higher BEC. Male sex, active smoking and concomitant asthma were significantly associated with a higher BEC.
Collapse
|