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Tan J, Fang H, Hu X, Yue M, Yang J. Serum beta2-microglobulin and peripheral blood eosinophils for the assessment of severity and prognosis with omicron variant COVID-19 infection. Front Mol Biosci 2024; 11:1476080. [PMID: 39633986 PMCID: PMC11614729 DOI: 10.3389/fmolb.2024.1476080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2024] [Accepted: 10/29/2024] [Indexed: 12/07/2024] Open
Abstract
Background The Omicron variant's high transmissibility has made it the most widespread novel coronavirus variant. Elevated serum β2-MG levels from viral infections and EOS' role in viral clearance have garnered attention. However, their predictive value for Omicron's severity and prognosis needs further exploration. Methods This retrospective study included 424 patients with confirmed COVID-19 Omicron variant admitted to the Second Hospital of Jilin University in Changchun, China, of whom 128 experienced in-hospital mortality. Patients were divided into high and low groups according to β2-MG and EOS levels; the relationship between disease severity and patient prognosis was analyzed. Results Our findings showed that severe-to-critical Omicron patients had higher β2-MG levels than mild-normal patients. Conversely, EOS levels were higher in mild-moderate cases. Both β2-MG and EOS levels normalized when Omicron patients tested negative for nucleic acid. Deceased Omicron patients had significantly lower pre-mortem EOS levels. Elevated β2-MG and lower EOS levels correlated with reduced overall survival. Multivariate COX regression analysis indicated that elevated β2-MG was an independent adverse prognostic factor for Omicron patients. Conclusion High serum β2-MG levels and low eosinophil levels upon admission correlate with omicron variant severity and prognosis. β2-MG is an independent risk factor for poor outcomes in omicron patients.
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Affiliation(s)
| | | | | | | | - Junling Yang
- Department of Respiratory Medicine, The Second Hospital of Jilin University, Changchun, China
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Ranjbar M, Cusack RP, Whetstone CE, Brister DL, Wattie J, Wiltshire L, Alsaji N, Le Roux J, Cheng E, Srinathan T, Ho T, Sehmi R, O’Byrne PM, Snow-Smith M, Makiya M, Klion AD, Duong M, Gauvreau GM. Immune Response Dynamics and Biomarkers in COVID-19 Patients. Int J Mol Sci 2024; 25:6427. [PMID: 38928133 PMCID: PMC11204302 DOI: 10.3390/ijms25126427] [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: 05/15/2024] [Revised: 06/04/2024] [Accepted: 06/06/2024] [Indexed: 06/28/2024] Open
Abstract
BACKGROUND The immune response dynamics in COVID-19 patients remain a subject of intense investigation due to their implications for disease severity and treatment outcomes. We examined changes in leukocyte levels, eosinophil activity, and cytokine profiles in patients hospitalized with COVID-19. METHODS Serum samples were collected within the first 10 days of hospitalization/confirmed infection and analyzed for eosinophil granule proteins (EGP) and cytokines. Information from medical records including comorbidities, clinical symptoms, medications, and complete blood counts were collected at the time of admission, during hospitalization and at follow up approximately 3 months later. RESULTS Serum levels of eotaxin, type 1 and type 2 cytokines, and alarmin cytokines were elevated in COVID-19 patients, highlighting the heightened immune response (p < 0.05). However, COVID-19 patients exhibited lower levels of eosinophils and eosinophil degranulation products compared to hospitalized controls (p < 0.05). Leukocyte counts increased consistently from admission to follow-up, indicative of recovery. CONCLUSION Attenuated eosinophil activity alongside elevated chemokine and cytokine levels during active infection, highlights the complex interplay of immune mediators in the pathogenesis COVID-19 and underscores the need for further investigation into immune biomarkers and treatment strategies.
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Affiliation(s)
- Maral Ranjbar
- Division of Respirology, Department of Medicine, McMaster University, Hamilton, ON L8N 3Z5, Canada; (M.R.); (R.P.C.); (C.E.W.); (D.L.B.); (J.W.); (L.W.); (N.A.); (T.H.); (R.S.); (P.M.O.); (M.D.)
| | - Ruth P. Cusack
- Division of Respirology, Department of Medicine, McMaster University, Hamilton, ON L8N 3Z5, Canada; (M.R.); (R.P.C.); (C.E.W.); (D.L.B.); (J.W.); (L.W.); (N.A.); (T.H.); (R.S.); (P.M.O.); (M.D.)
| | - Christiane E. Whetstone
- Division of Respirology, Department of Medicine, McMaster University, Hamilton, ON L8N 3Z5, Canada; (M.R.); (R.P.C.); (C.E.W.); (D.L.B.); (J.W.); (L.W.); (N.A.); (T.H.); (R.S.); (P.M.O.); (M.D.)
| | - Danica L. Brister
- Division of Respirology, Department of Medicine, McMaster University, Hamilton, ON L8N 3Z5, Canada; (M.R.); (R.P.C.); (C.E.W.); (D.L.B.); (J.W.); (L.W.); (N.A.); (T.H.); (R.S.); (P.M.O.); (M.D.)
| | - Jennifer Wattie
- Division of Respirology, Department of Medicine, McMaster University, Hamilton, ON L8N 3Z5, Canada; (M.R.); (R.P.C.); (C.E.W.); (D.L.B.); (J.W.); (L.W.); (N.A.); (T.H.); (R.S.); (P.M.O.); (M.D.)
| | - Lesley Wiltshire
- Division of Respirology, Department of Medicine, McMaster University, Hamilton, ON L8N 3Z5, Canada; (M.R.); (R.P.C.); (C.E.W.); (D.L.B.); (J.W.); (L.W.); (N.A.); (T.H.); (R.S.); (P.M.O.); (M.D.)
| | - Nadia Alsaji
- Division of Respirology, Department of Medicine, McMaster University, Hamilton, ON L8N 3Z5, Canada; (M.R.); (R.P.C.); (C.E.W.); (D.L.B.); (J.W.); (L.W.); (N.A.); (T.H.); (R.S.); (P.M.O.); (M.D.)
| | | | - Eric Cheng
- St. Joseph’s Healthcare Hamilton, Hamilton, ON L8N 4A6, Canada; (E.C.); (T.S.)
| | - Thivya Srinathan
- St. Joseph’s Healthcare Hamilton, Hamilton, ON L8N 4A6, Canada; (E.C.); (T.S.)
| | - Terence Ho
- Division of Respirology, Department of Medicine, McMaster University, Hamilton, ON L8N 3Z5, Canada; (M.R.); (R.P.C.); (C.E.W.); (D.L.B.); (J.W.); (L.W.); (N.A.); (T.H.); (R.S.); (P.M.O.); (M.D.)
- The Research Institute of St. Joe’s Hamilton, Firestone Institute for Respiratory Health, St. Joseph’s Healthcare Hamilton, Hamilton, ON L8N 4A6, Canada
| | - Roma Sehmi
- Division of Respirology, Department of Medicine, McMaster University, Hamilton, ON L8N 3Z5, Canada; (M.R.); (R.P.C.); (C.E.W.); (D.L.B.); (J.W.); (L.W.); (N.A.); (T.H.); (R.S.); (P.M.O.); (M.D.)
- The Research Institute of St. Joe’s Hamilton, Firestone Institute for Respiratory Health, St. Joseph’s Healthcare Hamilton, Hamilton, ON L8N 4A6, Canada
| | - Paul M. O’Byrne
- Division of Respirology, Department of Medicine, McMaster University, Hamilton, ON L8N 3Z5, Canada; (M.R.); (R.P.C.); (C.E.W.); (D.L.B.); (J.W.); (L.W.); (N.A.); (T.H.); (R.S.); (P.M.O.); (M.D.)
- Hamilton Health Sciences, Hamilton, ON L8N 3Z5, Canada;
- St. Joseph’s Healthcare Hamilton, Hamilton, ON L8N 4A6, Canada; (E.C.); (T.S.)
| | - Maryonne Snow-Smith
- Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA; (M.S.-S.); (M.M.); (A.D.K.)
| | - Michelle Makiya
- Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA; (M.S.-S.); (M.M.); (A.D.K.)
| | - Amy D. Klion
- Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA; (M.S.-S.); (M.M.); (A.D.K.)
| | - MyLinh Duong
- Division of Respirology, Department of Medicine, McMaster University, Hamilton, ON L8N 3Z5, Canada; (M.R.); (R.P.C.); (C.E.W.); (D.L.B.); (J.W.); (L.W.); (N.A.); (T.H.); (R.S.); (P.M.O.); (M.D.)
- The Research Institute of St. Joe’s Hamilton, Firestone Institute for Respiratory Health, St. Joseph’s Healthcare Hamilton, Hamilton, ON L8N 4A6, Canada
- Population Health Research Institute, McMaster University, Hamilton, ON L8N 3Z5, Canada
| | - Gail M. Gauvreau
- Division of Respirology, Department of Medicine, McMaster University, Hamilton, ON L8N 3Z5, Canada; (M.R.); (R.P.C.); (C.E.W.); (D.L.B.); (J.W.); (L.W.); (N.A.); (T.H.); (R.S.); (P.M.O.); (M.D.)
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Chen X, Zhu X, Zhuo H, Lin J, Lin X. Basophils absence predicts poor prognosis and indicates immunosuppression of patients in intensive care units. Sci Rep 2023; 13:18533. [PMID: 37898659 PMCID: PMC10613308 DOI: 10.1038/s41598-023-45865-y] [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: 06/01/2023] [Accepted: 10/25/2023] [Indexed: 10/30/2023] Open
Abstract
Immune cells and immunity are associated with the prognosis of patients with critical illness. Here, medical records retrospectively extracted from the Medical Information Mart for Intensive Care IV were used for screening an immune-related biomarker in intensive care units (ICU) patients and applied for validating the identified indicator in septic patients. In this work, the count of innate immune cells, basophils, harbored a superior role in predicting ICU patients' prognosis compared with those of other blood immune cells (OR 0.013, 95% CI 0.001, 0.118, P < 0.001). Importantly, basophils absence during ICU stay was positively correlated with the 28-day mortality of ICU patients and served as an independent predictor of ICU patients' prognosis (OR 3.425, 95% CI 3.717-3.165, P < 0.001). Moreover, the association between critical illness progression, poor outcome, and basophils absence was verified in septic patients. Subsequent investigations revealed the positive relationship between basophils absence and immunosuppression, and suggested the potential of basophils-mediated immunity in predicting the 28-day mortality of ICU patients. Collectively, we identify basophils absence during ICU stay as a novel and unfavorable indicator for evaluating the prognosis of ICU patients and recognizing a branch of ICU patients potentially suitable for intensified treatment and immunoenhancement therapy.
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Affiliation(s)
- Xiao Chen
- Department of Intensive Care Unit and The Clinical Key Specialty of Fujian Province, First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China
- Department of Intensive Care Unit, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, Fujian, China
| | - Xiaofeng Zhu
- Department of Oral Maxillo-Facial Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China
| | - Huichang Zhuo
- Department of Intensive Care Unit and The Clinical Key Specialty of Fujian Province, First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China
- Department of Intensive Care Unit, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, Fujian, China
| | - Jiandong Lin
- Department of Intensive Care Unit and The Clinical Key Specialty of Fujian Province, First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China.
- Department of Intensive Care Unit, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, Fujian, China.
| | - Xian Lin
- Shenzhen Key Laboratory of Immunity and Inflammatory Diseases, Peking University Shenzhen Hospital, Shenzhen Peking University-The Hong Kong University of Science and Technology Medical Center, Shenzhen, Guangdong, China.
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Rădulescu PM, Căluianu EI, Traşcă ET, Mercuţ D, Georgescu I, Georgescu EF, Ciupeanu-Călugăru ED, Mercuţ MF, Mercuţ R, Padureanu V, Streba CT, Călăraşu C, Rădulescu D. The Impact of the COVID-19 Pandemic on Outcomes in Acute Pancreatitis: A Propensity Score Matched Study Comparing before and during the Pandemic. Diagnostics (Basel) 2023; 13:2446. [PMID: 37510190 PMCID: PMC10378087 DOI: 10.3390/diagnostics13142446] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 07/17/2023] [Accepted: 07/18/2023] [Indexed: 07/30/2023] Open
Abstract
We aimed to evaluate the outcomes and survival of patients with acute pancreatitis who shared the same clinical form, age, and sex before the pandemic, during the pandemic, and among those with confirmed COVID-19 infection upon hospital admission. This consideration used the sparse data in the existing literature on the influence of the pandemic and COVID-19 infection on patients with acute pancreatitis. To accomplish this, we conducted a multicentric, retrospective case-control study using propensity score matching with a 2:1 match of 28 patients with SARS-CoV-2 infection and acute pancreatitis, with 56 patients with acute pancreatitis pre-pandemic, and 56 patients with acute pancreatitis during the pandemic. The study outcome demonstrated a six-fold relative risk of death in patients with acute pancreatitis and SARS-CoV-2 infection compared to those with acute pancreatitis before the pandemic. Furthermore, restrictive measures implemented during the pandemic period led to a partial delay in the care of patients with acute pancreatitis, which likely resulted in an impairment of their immune state. This, in certain circumstances, resulted in a restriction of surgical treatment indications, leading to a three-fold relative risk of death in patients with acute pancreatitis during the pandemic compared to those with acute pancreatitis before the pandemic.
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Affiliation(s)
| | - Elena Irina Căluianu
- General Surgery Department, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Emil Tiberius Traşcă
- General Surgery Department, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Dorin Mercuţ
- General Surgery Department, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Ion Georgescu
- General Surgery Department, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Eugen Florin Georgescu
- General Surgery Department, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | | | - Maria Filoftea Mercuţ
- Department of Ophthalmology, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Răzvan Mercuţ
- Department of Plastic and Reconstructive Surgery, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Vlad Padureanu
- Internal Medicine Department, Country Hospital of Craiova, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Costin Teodor Streba
- Department of Pneumology, University of Pharmacy and Medicine Craiova, 200349 Craiova, Romania
| | - Cristina Călăraşu
- Department of Pneumology, University of Pharmacy and Medicine Craiova, 200349 Craiova, Romania
| | - Dumitru Rădulescu
- General Surgery Department, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
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Salai G, Vrazic H, Kovacevic I, Janes LM, Marasovic I, Ranilovic D, Vukoja D, Zelenika Margeta M, Huljev-Sipos I, Lalic K, Spoljaric M, Tekavec-Trkanjec J, Vergles M, Lucijanic M, Luksic I, Ljubicic D. Investigating the role of obstructive pulmonary diseases and eosinophil count at admission on all-cause mortality in SARS-CoV-2 patients : A single center registry-based retrospective cohort study. Wien Klin Wochenschr 2023; 135:235-243. [PMID: 37093279 PMCID: PMC10124688 DOI: 10.1007/s00508-023-02180-w] [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: 08/29/2022] [Accepted: 02/25/2023] [Indexed: 04/25/2023]
Abstract
INTRODUCTION The impact of asthma and chronic obstructive pulmonary disease (COPD) in the setting of severe acute respiratory syndrome coronavirus 2 (SARS-CoV‑2) infection is not clearly defined. Blood eosinophil count is a standard diagnostic test which, according to the previously published literature, might have a potential prognostic role on mortality in patients with SARS-CoV‑2 infection. AIM To investigate the potential prognostic value of peripheral blood eosinophil count on all-cause mortality of patients hospitalized with SARS-CoV‑2 infection, as well as to assess the impact of asthma or COPD premorbidity on all-cause mortality. MATERIAL AND METHODS We conducted a retrospective registry-based cohort study. Survival analysis was performed by employing the Cox proportional hazards regression model at 30 days of follow-up. Prognostic value of eosinophil count on all-cause mortality was assessed using receiver-operating characteristic (ROC) curve analysis. RESULTS A total of 5653 participants were included in the study. Our model did not reveal that pre-existing asthma or COPD is a statistically significant covariate for all-cause mortality but, indicated that higher eosinophil count at admission might have a protective effect (hazard ratio, HR 0.13 (95% confidence interval, CI 0.06-0.27), p = 0.0001). ROC curve analysis indicates cut-off value of 20 cells/mm3 (81% specificity; 30.9% sensitivity). CONCLUSION Our results indicate that eosinophil count at hospital admission might have a potential prognostic role for all-cause mortality at 30 days of follow-up; however this was not demonstrated for pre-existing obstructive lung diseases.
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Affiliation(s)
- Grgur Salai
- Department of Pulmonology, University Hospital Dubrava, Zagreb, Croatia
| | - Hrvoje Vrazic
- Healthcare Provision and Innovation Management, Austrian Social Insurance, Vienna, Austria
- University Hospital Centre Varaždin, University North, Varaždin, Croatia
| | - Ivona Kovacevic
- Department of Pulmonology, University Hospital Dubrava, Zagreb, Croatia
| | | | - Ivan Marasovic
- Department of Pulmonology, University Hospital Dubrava, Zagreb, Croatia
| | - Darjan Ranilovic
- Department of Pulmonology, University Hospital Dubrava, Zagreb, Croatia
| | - Damir Vukoja
- Department of Pulmonology, University Hospital Dubrava, Zagreb, Croatia
| | | | | | - Kristina Lalic
- Department of Pulmonology, University Hospital Dubrava, Zagreb, Croatia
| | - Marko Spoljaric
- Department of Pulmonology, University Hospital Dubrava, Zagreb, Croatia
| | | | - Mirna Vergles
- Department of Pulmonology, University Hospital Dubrava, Zagreb, Croatia
| | - Marko Lucijanic
- Department of Hematology, University Hospital Dubrava, Zagreb, Croatia
- School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Ivica Luksic
- Department of Maxillofacial and Oral SurgCroatiaery, University Hospital Dubrava, Dubrava, Croatia
- School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Divo Ljubicic
- Department of Pulmonology, University Hospital Dubrava, Zagreb, Croatia.
- School of Medicine, University of Zagreb, Zagreb, Croatia.
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A Method for Expanding the Training Set of White Blood Cell Images. JOURNAL OF HEALTHCARE ENGINEERING 2022; 2022:1267080. [DOI: 10.1155/2022/1267080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 04/08/2022] [Accepted: 04/15/2022] [Indexed: 11/10/2022]
Abstract
In medicine, the count of different types of white blood cells can be used as the basis for diagnosing certain diseases or evaluating the treatment effects of diseases. The recognition and counting of white blood cells have important clinical significance. But the effect of recognition based on machine learning is affected by the size of the training set. At present, researchers mainly rely on image rotation and cropping to expand the dataset. These methods either add features to the white blood cell image or require manual intervention and are inefficient. In this paper, a method for expanding the training set of white blood cell images is proposed. After rotating the image at any angle, Canny is used to extract the edge of the black area caused by the rotation and then fill the black area to achieve the purpose of expanding the training set. The experimental results show that after using the method proposed in this paper to expand the training set to train the three models of ResNet, MobileNet, and ShuffleNet, and comparing the original dataset and the method trained by the simple rotated image expanded dataset, the recognition accuracy of the three models is obviously improved without manual intervention.
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Tong X, Cheng A, Yuan X, Zhong X, Wang H, Zhou W, Xu X, Li Y. Characteristics of peripheral white blood cells in COVID-19 patients revealed by a retrospective cohort study. BMC Infect Dis 2021; 21:1236. [PMID: 34886793 PMCID: PMC8655490 DOI: 10.1186/s12879-021-06899-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Accepted: 11/16/2021] [Indexed: 01/12/2023] Open
Abstract
Background Peripheral hematological changes in severe COVID-19 patients may reflect the immune response during SARS-CoV-2 infection. Characteristics of peripheral white blood cells as early signals were needed to be investigated for clarifying its associations with the fatal outcomes in COVID-19 patients. Methods A retrospective cohort study was performed and the hospitalized COVID-19 patients were recruited in wards of Sino-French New City Branch of Tongji Hospital in Wuhan, Hubei province, China. Characteristics of peripheral white blood cells in survivors and non-survivors were analyzed. Comparison among patients with different level of eosinophils was performed. Results Of 198 patients included in this study, 185 were discharged and 13 died. Levels of eosinophils, lymphocytes and basophils in non-survivors were significantly lower than those in survivors. Death rate in low eosinophils group was higher and no patient died in normal eosinophils group (16.7% vs 0, P < 0.001). The proportion of patients in low eosinophils group who used glucocorticoids was higher than in normal eosinophils group, but glucocorticoids usage was not an indicator for death in subgroup analysis in low eosinophils patients. Moreover, positive correlation was found between the counts of lymphocytes and eosinophils in patients with glucocorticoids use but not in patients without the treatment. Conclusions Hematological changes differed between survivors and non-survivors with COVID-19. Lymphopenia and eosinopenia could be predictors for poor prognosis of COVID-19 patients. Initial counts of eosinophils may guide us in usage of glucocorticoids for COVID-19 treatment. Supplementary Information The online version contains supplementary material available at 10.1186/s12879-021-06899-7.
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Affiliation(s)
- Xunliang Tong
- Department of Pulmonary and Critical Care Medicine, Beijing Hospital, National Center of Gerontology; Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, People's Republic of China
| | - Anqi Cheng
- Tobacco Medicine and Tobacco Cessation Center, Center of Respiratory Medicine, China-Japan Friendship Hospital, Beijing, China.,WHO Collaborating Center for Tobacco Cessation and Respiratory Diseases Prevention, Beijing, China.,National Clinical Research Center for Respiratory Diseases, Beijing, China.,Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, Beijing, People's Republic of China
| | - Xueting Yuan
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Beijing Hospital, National Center of Gerontology, National Health Commission, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, People's Republic of China
| | - Xuefeng Zhong
- Department of Pulmonary and Critical Care Medicine, Beijing Hospital, National Center of Gerontology; Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, People's Republic of China
| | - He Wang
- Department of Pulmonary and Critical Care Medicine, Beijing Hospital, National Center of Gerontology; Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, People's Republic of China
| | - Wei Zhou
- Department of Pulmonary and Critical Care Medicine, Beijing Hospital, National Center of Gerontology; Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, People's Republic of China
| | - Xiaomao Xu
- Department of Pulmonary and Critical Care Medicine, Beijing Hospital, National Center of Gerontology; Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, People's Republic of China.
| | - Yanming Li
- Department of Pulmonary and Critical Care Medicine, Beijing Hospital, National Center of Gerontology; Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, People's Republic of China.
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Fu S, Yu S, Zhao Y, Ma X, Li X. Unfractionated Heparin Attenuated Histone-Induced Pulmonary Syndecan-1 Degradation in Mice: a Preliminary Study on the Roles of Heparinase Pathway. Inflammation 2021; 45:712-724. [PMID: 34657233 DOI: 10.1007/s10753-021-01578-w] [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: 07/08/2021] [Revised: 09/07/2021] [Accepted: 10/05/2021] [Indexed: 10/20/2022]
Abstract
Endothelial glycocalyx degradation is thought to facilitate the development of sepsis. Histone is a significant mediator in sepsis. Unfractionated heparin (UFH) possessed beneficial effects on sepsis. Thereby, this study aims to figure out whether histone can disrupt glycocalyx and to investigate the protective effect and mechanism of UFH. Male mice (C57BL/6, 8-10 weeks old, weighing 20-25 g) were randomly divided into five groups including control group, histone group, histone + UFH group, histone + heparinase (HPA) inhibitor group, and histone + UFH + HPA inhibitor group. The mice were treated with histone (50 mg/kg) via tail vein immediately after HPA (20 mg/kg) injection. UFH (400 U/kg) was injected 1h after histone administration. The other groups were injected with equal volume of sterile saline accordingly. UFH alleviated histone-induced lung injury and pulmonary edema. UFH inhibited histone-induced lung coagulation activation and inflammatory response. UFH treatment markedly inhibited pulmonary glycocalyx degradation by reducing the histone-induced decrease in the levels of lung syndecan-1 mRNA and protein. UFH downregulated histone-induced expression of HPA mRNA and protein, and thus alleviated glycocalyx degradation. UFH protects against histone-induced pulmonary glycocalyx injury partly by heparinase pathway.
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Affiliation(s)
- Sifeng Fu
- Department of Critical Care Medicine, the First Affiliated Hospital, China Medical University, North Nanjing Street 155, Shenyang, 110001, Liaoning Province, People's Republic of China
| | - Sihan Yu
- Department of Critical Care Medicine, the First Affiliated Hospital, China Medical University, North Nanjing Street 155, Shenyang, 110001, Liaoning Province, People's Republic of China
| | - Yilin Zhao
- Department of Critical Care Medicine, the First Affiliated Hospital, China Medical University, North Nanjing Street 155, Shenyang, 110001, Liaoning Province, People's Republic of China
| | - Xiaochun Ma
- Department of Critical Care Medicine, the First Affiliated Hospital, China Medical University, North Nanjing Street 155, Shenyang, 110001, Liaoning Province, People's Republic of China
| | - Xu Li
- Department of Critical Care Medicine, the First Affiliated Hospital, China Medical University, North Nanjing Street 155, Shenyang, 110001, Liaoning Province, People's Republic of China.
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