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Shu X, Cai F, Li W, Shen H. Copeptin as a diagnostic and prognostic biomarker in pediatric diseases. Clin Chem Lab Med 2024; 0:cclm-2024-0839. [PMID: 39165044 DOI: 10.1515/cclm-2024-0839] [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: 07/21/2024] [Accepted: 08/09/2024] [Indexed: 08/22/2024]
Abstract
Arginine vasopressin (AVP) plays a main role in maintaining the homeostasis of fluid balance and vascular tone and in regulating the endocrine stress response in response to osmotic, hemodynamic and stress stimuli. However, the difficulty in measuring AVP limits its clinical application. Copeptin, the C-terminal part of the AVP precursor, is released in an equimolar concentration mode with AVP from the pituitary but is more stable and simple to measure. Therefore, copeptin has emerged as a promising surrogate marker of AVP with excellent potential for the diagnosis, differentiation and prognosis of various diseases in recent decades. However, its application requires further validation, especially in the pediatric population. This review focuses on the clinical value of copeptin in different pediatric diseases and the prospects for its application as a potential biomarker.
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Affiliation(s)
- Xiaoli Shu
- Department of Clinical Laboratory, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Children's Regional Medical Center, Hangzhou, China
| | - Fengqing Cai
- Department of Clinical Laboratory, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Children's Regional Medical Center, Hangzhou, China
| | - Wei Li
- Department of Clinical Laboratory, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Children's Regional Medical Center, Hangzhou, China
| | - Hongqiang Shen
- Department of Clinical Laboratory, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Children's Regional Medical Center, Hangzhou, China
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2
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Wilkes C, Bava M, Graham HR, Duke T. What are the risk factors for death among children with pneumonia in low- and middle-income countries? A systematic review. J Glob Health 2023; 13:05003. [PMID: 36825608 PMCID: PMC9951126 DOI: 10.7189/jogh.13.05003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023] Open
Abstract
Background Knowledge of the risk factors for and causes of treatment failure and mortality in childhood pneumonia is important for prevention, diagnosis, and treatment at an individual and population level. This review aimed to identify the most important risk factors for mortality among children aged under ten years with pneumonia. Methods We systematically searched MEDLINE, EMBASE, and PubMed for observational and interventional studies reporting risk factors for mortality in children (aged two months to nine years) in low- and middle-income countries (LMICs). We screened articles according to specified inclusion and exclusion criteria, assessed risk of bias using the EPHPP framework, and extracted data on demographic, clinical, and laboratory risk factors for death. We synthesized data descriptively and using Forest plots and did not attempt meta-analysis due to the heterogeneity in study design, definitions, and populations. Findings We included 143 studies in this review. Hypoxaemia (low blood oxygen level), decreased conscious state, severe acute malnutrition, and the presence of an underlying chronic condition were the risk factors most strongly and consistently associated with increased mortality in children with pneumonia. Additional important clinical factors that were associated with mortality in the majority of studies included particular clinical signs (cyanosis, pallor, tachypnoea, chest indrawing, convulsions, diarrhoea), chronic comorbidities (anaemia, HIV infection, congenital heart disease, heart failure), as well as other non-severe forms of malnutrition. Important demographic factors associated with mortality in the majority of studies included age <12 months and inadequate immunisation. Important laboratory and investigation findings associated with mortality in the majority of studies included: confirmed Pneumocystis jirovecii pneumonia (PJP), consolidation on chest x-ray, pleural effusion on chest x-ray, and leukopenia. Several other demographic, clinical and laboratory findings were associated with mortality less consistently or in a small numbers of studies. Conclusions Risk assessment for children with pneumonia should include routine evaluation for hypoxaemia (pulse oximetry), decreased conscious state (e.g. AVPU), malnutrition (severe, moderate, and stunting), and the presence of an underlying chronic condition as these are strongly and consistently associated with increased mortality. Other potentially useful risk factors include the presence of pallor or anaemia, chest indrawing, young age (<12 months), inadequate immunisation, and leukopenia.
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Affiliation(s)
- Chris Wilkes
- Murdoch Children’s Research Institution, Royal Children’s Hospital, Parkville, Victoria, Australia
| | - Mohamed Bava
- Murdoch Children’s Research Institution, Royal Children’s Hospital, Parkville, Victoria, Australia
| | - Hamish R Graham
- Murdoch Children’s Research Institution, Royal Children’s Hospital, Parkville, Victoria, Australia,Department of Paediatrics, University of Melbourne, Royal Children’s Hospital, Parkville, Victoria, Australia
| | - Trevor Duke
- Murdoch Children’s Research Institution, Royal Children’s Hospital, Parkville, Victoria, Australia,Department of Paediatrics, University of Melbourne, Royal Children’s Hospital, Parkville, Victoria, Australia
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Anteneh ZA, Arega HE, Mihretie KM. Validation of risk prediction for outcomes of severe community-acquired pneumonia among under-five children in Amhara region, Northwest Ethiopia. PLoS One 2023; 18:e0281209. [PMID: 36791115 PMCID: PMC9931104 DOI: 10.1371/journal.pone.0281209] [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: 02/23/2022] [Accepted: 01/10/2023] [Indexed: 02/16/2023] Open
Abstract
BACKGROUND Globally there are over 1,400 cases of pneumonia per 100,000 children every year, where children in South Asia and Sub-Saharan Africa are disproportionately affected. Some of the cases develop poor treatment outcome (treatment failure or antibiotic change or staying longer in the hospital or death), while others develop good outcome during interventions. Although clinical decision-making is a key aspect of the interventions, there are limited tools such as risk scores to assist the clinical judgment in low-income settings. This study aimed to validate a prediction model and develop risk scores for poor outcomes of severe community-acquired pneumonia (SCAP). METHODS A cohort study was conducted among 539 under-five children hospitalized with SCAP. Data analysis was done using R version 4.0.5 software. A multivariable analysis was done. We developed a simplified risk score to facilitate clinical utility. Model performance was evaluated using the area under the receiver operating characteristic curve (AUC) and calibration plot. Bootstrapping was used to validate all accuracy measures. A decision curve analysis was used to evaluate the clinical and public health utility of our model. RESULTS The incidence of poor outcomes of pneumonia was 151(28%) (95%CI: 24.2%-31.8%). Vaccination status, fever, pallor, unable to breastfeed, impaired consciousness, CBC abnormal, entered ICU, and vomiting remained in the reduced model. The AUC of the original model was 0.927, 95% (CI (0.90, 0.96), whereas the risk score model produced prediction accuracy of an AUC of 0.89 (95%CI: 0.853-0.922. Our decision curve analysis for the model provides a higher net benefit across ranges of threshold probabilities. CONCLUSIONS Our model has excellent discrimination and calibration performance. Similarly, the risk score model has excellent discrimination and calibration ability with an insignificant loss of accuracy from the original. The models can have the potential to improve care and treatment outcomes in the clinical settings.
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Affiliation(s)
- Zelalem Alamrew Anteneh
- Department of Epidemiology, School of Public Health, Bahir Dar University, Bahir Dar, Ethiopia
- * E-mail:
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4
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Zhang W, Zhou H, Cen M, Ouyang W, Chen J, Xia L, Lin X, Liu J, He T, Xu F. N-myc and STAT interactor is a novel biomarker of severity in community-acquired pneumonia: a prospective study. Respir Res 2022; 23:253. [PMID: 36123652 PMCID: PMC9483521 DOI: 10.1186/s12931-022-02139-x] [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: 09/07/2021] [Accepted: 08/15/2022] [Indexed: 11/23/2022] Open
Abstract
Objectives To tested the ability of N-myc and STAT interactor (NMI) levels in patients with community-acquired pneumonia (CAP) to predict the severity of the disease. Methods Prospective observational analysis of patients with CAP was performed. The NMI levels in serum of 394 CAP patients on admission were measured by immunoassay. Thirty-day mortality and intensive care unit (ICU) admission were set as clinical outcomes. The predicting value of NMI for clinical outcomes was determined by receiver operating characteristic curve and logistic regression analysis. The internal validity was assessed using cross-validation with bootstrap resampling. Results NMI was an independent risk factor for both 30-day mortality and admission to ICU for CAP patients. The area under curve (AUC) of NMI to predict mortality was 0.91 (95% CI: 0.86–0.96), and that to predict ICU admission was 0.92 (95% CI: 0.88–0.97), significantly higher than that of other biomarkers including procalcitonin and C-reactive protein. The proportion of clinical outcomes notably rose as NMI levels elevated (P < 0.001). The AUCs of the new score systems including NMI (N-PSI and N-CURB65 score) to predict outcomes were significantly higher than the original score systems. Conclusions NMI is a novel biomarker for predicting CAP severity superior to former biomarkers in 30-day mortality and ICU admission. Supplementary Information The online version contains supplementary material available at 10.1186/s12931-022-02139-x.
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Affiliation(s)
- Wanying Zhang
- Department of Infectious Diseases, The Second Affiliated Hospital, Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou, 310009, China
| | - Hui Zhou
- Department of Infectious Diseases, The Second Affiliated Hospital, Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou, 310009, China
| | - Mengyuan Cen
- Department of Infectious Diseases, The Second Affiliated Hospital, Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou, 310009, China
| | - Wei Ouyang
- Department of Infectious Diseases, The Second Affiliated Hospital, Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou, 310009, China
| | - Jie Chen
- Department of Infectious Diseases, The Second Affiliated Hospital, Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou, 310009, China
| | - Lexin Xia
- Department of Infectious Diseases, The Second Affiliated Hospital, Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou, 310009, China
| | - Xiuhui Lin
- Department of Infectious Diseases, The Second Affiliated Hospital, Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou, 310009, China
| | - Jinliang Liu
- Department of Infectious Diseases, The Second Affiliated Hospital, Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou, 310009, China
| | - Teng He
- Department of Infectious Diseases, The Second Affiliated Hospital, Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou, 310009, China
| | - Feng Xu
- Department of Infectious Diseases, The Second Affiliated Hospital, Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou, 310009, China.
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Baumann P, Gotta V, Atkinson A, Deisenberg M, Hersberger M, Roggia A, Schmid K, Cannizzaro V. Copeptin Release in Arterial Hypotension and Its Association with Severity of Disease in Critically Ill Children. CHILDREN (BASEL, SWITZERLAND) 2022; 9:children9060794. [PMID: 35740731 PMCID: PMC9222164 DOI: 10.3390/children9060794] [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: 05/02/2022] [Revised: 05/24/2022] [Accepted: 05/25/2022] [Indexed: 12/05/2022]
Abstract
Low copeptin levels may indicate inadequate arginine-vasopressin release promoting arterial hypotension, whereas high copeptin concentrations may reflect disease severity. This single-center prospective non-randomized clinical trial analyzed the course of blood copeptin in critically ill normo- and hypotensive children and its association with disease severity. In 164 patients (median age 0.5 years (interquartile range 0.1, 2.9)), the mean copeptin concentration at baseline was 43.5 pmol/L. Though not significantly different after 61 h (primary outcome, mean individual change: −12%, p = 0.36, paired t-test), we detected 1.47-fold higher copeptin concentrations during arterial hypotension when compared to normotension (mixed-effect ANOVA, p = 0.01). In total, 8 out of 34 patients (23.5%) with low copeptin concentrations <10 pmol/L were hypotensive. Copeptin was highest in the adjusted mixed-effect regression analysis within the first day (+20% at 14 h) and decreased significantly at 108 h (−27%) compared to baseline (p = 0.002). Moreover, we found a significant association with vasopressor-inotrope treatment intensity, infancy (1−12 months) and cardiopulmonary bypass (all p ≤ 0.001). In conclusion, high copeptin values were associated with arterial hypotension and severity of disease in critically ill children. This study does not support the hypothesis that low copeptin values might be indicative of arginine-vasopressin deficiency.
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Affiliation(s)
- Philipp Baumann
- Department of Intensive Care and Neonatology, University Children’s Hospital Zurich, University of Zurich, 8032 Zurich, Switzerland; (M.D.); (A.R.); (K.S.)
- Children’s Research Centre, University Children’s Hospital Zurich, University of Zurich, 8032 Zurich, Switzerland; (M.H.); (V.C.)
- Correspondence:
| | - Verena Gotta
- Department of Paediatric Pharmacology and Pharmacometrics, University of Basel Children’s Hospital, 4056 Basel, Switzerland; (V.G.); (A.A.)
| | - Andrew Atkinson
- Department of Paediatric Pharmacology and Pharmacometrics, University of Basel Children’s Hospital, 4056 Basel, Switzerland; (V.G.); (A.A.)
| | - Markus Deisenberg
- Department of Intensive Care and Neonatology, University Children’s Hospital Zurich, University of Zurich, 8032 Zurich, Switzerland; (M.D.); (A.R.); (K.S.)
- Department of Anaesthesia, University Children’s Hospital Zurich, University of Zurich, 8032 Zurich, Switzerland
| | - Martin Hersberger
- Children’s Research Centre, University Children’s Hospital Zurich, University of Zurich, 8032 Zurich, Switzerland; (M.H.); (V.C.)
- Clinical Chemistry and Biochemistry, University Children’s Hospital Zurich, University of Zurich, 8032 Zurich, Switzerland
| | - Adam Roggia
- Department of Intensive Care and Neonatology, University Children’s Hospital Zurich, University of Zurich, 8032 Zurich, Switzerland; (M.D.); (A.R.); (K.S.)
| | - Kevin Schmid
- Department of Intensive Care and Neonatology, University Children’s Hospital Zurich, University of Zurich, 8032 Zurich, Switzerland; (M.D.); (A.R.); (K.S.)
| | - Vincenzo Cannizzaro
- Children’s Research Centre, University Children’s Hospital Zurich, University of Zurich, 8032 Zurich, Switzerland; (M.H.); (V.C.)
- Department of Neonatology, University Hospital Zurich, University of Zurich, 8091 Zurich, Switzerland
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Baumann P, Fuchs A, Gotta V, Ritz N, Baer G, Bonhoeffer JM, Buettcher M, Heininger U, Szinnai G, Bonhoeffer J. The kinetic profiles of copeptin and mid regional proadrenomedullin (MR-proADM) in pediatric lower respiratory tract infections. PLoS One 2022; 17:e0264305. [PMID: 35271609 PMCID: PMC8912143 DOI: 10.1371/journal.pone.0264305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Accepted: 01/31/2022] [Indexed: 11/23/2022] Open
Abstract
Background Kinetics of copeptin and mid regional proadrenomedullin (MR-proADM) during febrile pediatric lower respiratory tract infections (LRTI) are unknown. We aimed to analyze kinetic profiles of copeptin and MR-proADM and the impact of clinical and laboratory factors on those biomarkers. Methods This is a retrospective post-hoc analysis of a randomized controlled trial, evaluating procalcitonin guidance for antibiotic treatment of LRTI (ProPAED-study). In 175 pediatric patients presenting to the emergency department plasma copeptin and MR-proADM concentrations were determined on day 1, 3, and 5. Their association with clinical characteristics and other inflammatory biomarkers were tested by non-linear mixed effect modelling. Results Median copeptin and MR-proADM values were elevated on day 1 and decreased during on day 3 and 5 (-26%; -34%, respectively). The initial concentrations of MR-proADM at inclusion were higher in patients receiving antibiotics intravenously compared to oral administration (difference 0.62 pmol/L, 95%CI 0.44;1.42, p<0.001). Intensive care unit (ICU) admission was associated with a daily increase of MR-proADM (increase/day 1.03 pmol/L, 95%CI 0.43;1.50, p<0.001). Positive blood culture in patients with antibiotic treatment and negative results on nasopharyngeal aspirates, or negative blood culture were associated with a decreasing MR-proADM (decrease/day -0.85 pmol/L, 95%CI -0.45;-1.44), p<0.001). Conclusion Elevated MR-proADM and increases thereof were associated with ICU admission suggesting the potential as a prognostic factor for severe pediatric LRTI. MR-proADM might only bear limited value for decision making on stopping antibiotics due to its slow decrease. Copeptin had no added value in our setting.
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Affiliation(s)
- Philipp Baumann
- Department of Paediatric Infectious Diseases and Vaccines, University of Basel Children’s Hospital, Basel, Switzerland
- * E-mail:
| | - Aline Fuchs
- Department of Paediatric Pharmacology and Pharmacometrics, University of Basel Children’s Hospital, Basel, Switzerland
| | - Verena Gotta
- Department of Paediatric Pharmacology and Pharmacometrics, University of Basel Children’s Hospital, Basel, Switzerland
| | - Nicole Ritz
- Department of Paediatric Infectious Diseases and Vaccines, University of Basel Children’s Hospital, Basel, Switzerland
- Department of Paediatric Pharmacology and Pharmacometrics, University of Basel Children’s Hospital, Basel, Switzerland
| | - Gurli Baer
- Department of Paediatric Infectious Diseases and Vaccines, University of Basel Children’s Hospital, Basel, Switzerland
| | - Jessica M. Bonhoeffer
- Department of Paediatrics, University of Basel Children’s Hospital, Basel, Switzerland
| | | | - Ulrich Heininger
- Department of Paediatric Infectious Diseases and Vaccines, University of Basel Children’s Hospital, Basel, Switzerland
| | - Gabor Szinnai
- Department of Paediatric Endocrinology and Diabetology, University of Basel Children’s Hospital, Basel, Switzerland
- Department of Clinical Research, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Jan Bonhoeffer
- Department of Paediatric Infectious Diseases and Vaccines, University of Basel Children’s Hospital, Basel, Switzerland
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7
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Mu D, Ma C, Cheng J, Zou Y, Qiu L, Cheng X. Copeptin in fluid disorders and stress. Clin Chim Acta 2022; 529:46-60. [PMID: 35143773 DOI: 10.1016/j.cca.2022.02.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 01/30/2022] [Accepted: 02/02/2022] [Indexed: 12/16/2022]
Abstract
Copeptin, a glycosylated peptide of 39 amino acids, is the C-terminal segment of arginine vasopressin (AVP) precursor peptide, which is consisted of two other fragments, vasopressin and neurophysin Ⅱ. The main physiological functions of AVP are fluid and osmotic balance, cardiovascular homeostasis and regulation of the endocrine stress response. Numerous studies have demonstrated that the endogenous AVP in plasma is a meaningful biomarker to guide diagnosis and therapy of diseases associated with fluids disorders and stress. However, due to its instability, short half-time life in circulation and lack of readily available AVP assays, clinical measurement of AVP is restricted. In contrast to AVP, copeptin which is released in an equimolar mode with AVP from the pituitary, has emerged as a stable and simple-to-measure surrogate marker of AVP and displays excellent potential in diagnosis, differentiation and prognosis of various diseases. This review will discuss the studies on the clinical value of copeptin in different diseases, especially in AVP-dependent fluids disorders, as well as issues and prospects of the application of this potential biomarker.
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Affiliation(s)
- Danni Mu
- Department of Laboratory Medicine, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Science, Beijing 100730, China
| | - Chaochao Ma
- Department of Laboratory Medicine, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Science, Beijing 100730, China
| | - Jin Cheng
- Department of Laboratory Medicine, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Science, Beijing 100730, China
| | - Yutong Zou
- Department of Laboratory Medicine, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Science, Beijing 100730, China
| | - Ling Qiu
- Department of Laboratory Medicine, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Science, Beijing 100730, China; State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Xinqi Cheng
- Department of Laboratory Medicine, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Science, Beijing 100730, China.
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Al-Kuraishy HM, Al-Gareeb AI, Qusti S, Alshammari EM, Atanu FO, Batiha GES. Arginine vasopressin and pathophysiology of COVID-19: An innovative perspective. Biomed Pharmacother 2021; 143:112193. [PMID: 34543987 PMCID: PMC8440235 DOI: 10.1016/j.biopha.2021.112193] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 09/06/2021] [Accepted: 09/10/2021] [Indexed: 12/25/2022] Open
Abstract
In Covid-19, systemic disturbances may progress due to development of cytokine storm and dysregulation of and plasma osmolarility due to high release of pro-inflammatory cytokines and neuro-hormonal disorders. Arginine vasopressin (AVP) which is involve in the regulation of body osmotic system, body water content, blood pressure and plasma volume, that are highly disturbed in Covid-19 and linked with poor clinical outcomes. Therefore, this present study aimed to find the potential association between AVP serum level and inflammatory disorders in Covid-19. It has been observed by different recent studies that physiological response due to fever, pain, hypovolemia, dehydration, and psychological stress is characterized by activation release of AVP to counter-balance high blood viscosity in Covid-19 patients. In addition, activated immune cells mainly T and B lymphocytes and released pro-inflammatory cytokines stimulate discharge of stored AVP from immune cells, which in a vicious cycle trigger release of pro-inflammatory cytokines. Vasopressin receptor antagonists have antiviral and anti-inflammatory effects that may inhibit AVP-induced hyponatremia and release of pro-inflammatory cytokines in Covid-19. In conclusion, release of AVP from hypothalamus is augmented in Covid-19 due to stress, high pro-inflammatory cytokines, high circulating AngII and inhibition of GABAergic neurons. In turn, high AVP level leads to induction of hyponatremia, inflammatory disorders, and development of complications in Covid-19 by activation of NF-κB and NLRP3 inflammasome with release of pro-inflammatory cytokines. Therefore, AVP antagonists might be novel potential therapeutic modality in treating Covid-19 through mitigation of AVP-mediated inflammatory disorders and hyponatremia.
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Affiliation(s)
- Hayder M Al-Kuraishy
- Department of Clinical Pharmacology and Medicine, College of Medicine, ALmustansiriyia University, Baghdad, Iraq.
| | - Ali I Al-Gareeb
- Department of Clinical Pharmacology and Medicine, College of Medicine, ALmustansiriyia University, Baghdad, Iraq.
| | - Safaa Qusti
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia.
| | - Eida M Alshammari
- Department of Chemistry, College of Sciences, University of Ha'il, Ha'il, Saudi Arabia.
| | - Francis O Atanu
- Department of Biochemistry, Faculty of Natural Sciences, Kogi State University, P.M.B. 1008 Anyigba, Nigeria.
| | - Gaber El-Saber Batiha
- Department of Pharmacology and Therapeutics, Faculty of Veterinary Medicine, Damanhour University, Damanhour 22511, AlBeheira, Egypt.
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9
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Kuluöztürk M, İn E, Telo S, Karabulut E, Geçkil AA. Efficacy of copeptin in distinguishing COVID-19 pneumonia from community-acquired pneumonia. J Med Virol 2021; 93:3113-3121. [PMID: 33570194 PMCID: PMC8013559 DOI: 10.1002/jmv.26870] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 02/02/2021] [Accepted: 02/09/2021] [Indexed: 01/14/2023]
Abstract
The clinical symptoms of community‐acquired pneumonia (CAP) and coronavirus disease 2019 (COVID‐19)‐associated pneumonia are similar. Effective predictive markers are needed to differentiate COVID‐19 pneumonia from CAP in the current pandemic conditions. Copeptin, a 39‐aminoacid glycopeptide, is a C‐terminal part of the precursor pre‐provasopressin (pre‐proAVP). The activation of the AVP system stimulates copeptin secretion in equimolar amounts with AVP. This study aims to determine serum copeptin levels in patients with CAP and COVID‐19 pneumonia and to analyze the power of copeptin in predicting COVID‐19 pneumonia. The study consists of 98 patients with COVID‐19 and 44 patients with CAP. The basic demographic and clinical data of all patients were recorded, and blood samples were collected. The receiver operating characteristic (ROC) curve was generated and the area under the ROC curve (AUC) was measured to evaluate the discriminative ability. Serum copeptin levels were significantly higher in COVID‐19 patients compared to CAP patients (10.2 ± 4.4 ng/ml and 7.1 ± 3.1 ng/ml; p < .001). Serum copeptin levels were positively correlated with leukocyte, neutrophil, and platelet count (r = −.21, p = .012; r = −.21, p = .013; r = −.20, p = .018; respectively). The multivariable logistic regression analysis revealed that increased copeptin (odds ratio [OR] = 1.183, 95% confidence interval [CI], 1.033–1.354; p = .015) and CK‐MB (OR = 1.052, 95% CI, 1.013–1.092; p = .008) levels and decreased leukocyte count (OR = 0.829, 95% CI, 0.730–0.940; p = .004) were independent predictors of COVID‐19 pneumonia. A cut‐off value of 6.83 ng/ml for copeptin predicted COVID‐19 with a sensitivity of 78% and a specificity of 73% (AUC: 0.764% 95 Cl: 0.671–0.856, p < .001). Copeptin could be a promising and useful biomarker to be used to distinguish COVID‐19 patients from CAP patients.
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Affiliation(s)
- Mutlu Kuluöztürk
- Department of Pulmonary Medicine, School of Medicine, Firat University, Elazig, Turkey
| | - Erdal İn
- Department of Pulmonary Medicine, School of Medicine, Malatya Turgut Ozal University, Malatya, Turkey
| | - Selda Telo
- Department of Biochemistry, Faculty of Dentistry, Firat University, Elazig, Turkey
| | - Ercan Karabulut
- Department of Medical Pharmacology, School of Medicine, Ankara Yildirim Beyazit Üniversity, Ankara, Turkey
| | - Ayşegül Altıntop Geçkil
- Department of Pulmonary Medicine, School of Medicine, Malatya Turgut Ozal University, Malatya, Turkey
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Drummond JB, Soares BS, Pedrosa W, Vieira ELM, Teixeira AL, Christ-Crain M, Ribeiro-Oliveira A. Copeptin response to hypoglycemic stress is linked to prolactin activation in children. Pituitary 2020; 23:681-690. [PMID: 32851504 DOI: 10.1007/s11102-020-01076-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
PURPOSE The physiological role of arginine vasopressin (AVP) in the acute stress response in humans and especially in children is unclear. The aim of this study was to explore the interaction between copeptin, a well-established surrogate marker of AVP release, and anterior pituitary hormone activation in response to acute hypoglycemic stress in children and adolescents. METHODS We conducted an exploratory single center study involving 77 children and adolescents undergoing insulin-induced hypoglycemia. Blood levels of copeptin, ACTH, cortisol, GH, prolactin, interleukin-6 (IL-6), adrenaline and noradrenaline were determined at baseline and after insulin-induced hypoglycemia. RESULTS Basal plasma levels of copeptin (median: 5.2 pmol/L) increased significantly after hypoglycemia (median 9.7 pmol/L; P < 0.0001). Subjects with insufficient HPA axis response or severe GH deficiency had lower hypoglycemia-induced copeptin increase (median: 2.3 pmol/L) compared with individuals with intact pituitary response (median: 5.2 pmol/L, P = 0.02). Copeptin increase correlated significantly with the maximal increase of ACTH (rs = 0.30; P = 0.010), cortisol (rs = 0.33; P = 0.003), prolactin (rs = 0.25; P = 0.03), IL-6 (rs = 0.35; P = 0.008) and with BMI-SDS (rs = - 0.28, P = 0.01). In multivariate regression analysis, prolactin increase was the only independent variable associated with copeptin increase (P = 0.0004). CONCLUSION Our data indicate that: (1) hypoglycemic stress elicits a marked copeptin response in children and adolescents, pointing out its role as an acute stress marker in this population; (2) stress-induced AVP/copeptin release is associated with anterior pituitary activation, mainly a prolactin response.
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Affiliation(s)
- Juliana B Drummond
- Laboratory of Endocrinology, Federal University of Minas Gerais, Av. Alfredo Balena, 190, Belo Horizonte, Minas Gerais, Brazil
| | - Beatriz S Soares
- Laboratory of Endocrinology, Federal University of Minas Gerais, Av. Alfredo Balena, 190, Belo Horizonte, Minas Gerais, Brazil
| | - William Pedrosa
- Hermes Pardini Institute, Belo Horizonte, Minas Gerais, Brazil
| | - Erica L M Vieira
- Interdisciplinary Laboratory of Medical Investigation, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Antonio L Teixeira
- Interdisciplinary Laboratory of Medical Investigation, Federal University of Minas Gerais, Belo Horizonte, Brazil
- Immunopsychiatry Laboratory & Neuropsychiatry Program, Department of Psychiatry & Behavioral Science, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, USA
| | | | - Antonio Ribeiro-Oliveira
- Laboratory of Endocrinology, Federal University of Minas Gerais, Av. Alfredo Balena, 190, Belo Horizonte, Minas Gerais, Brazil.
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Gomez JL, Himes BE, Kaminski N. Molecular Diagnostics in Pulmonary Infections. PRECISION IN PULMONARY, CRITICAL CARE, AND SLEEP MEDICINE 2020. [PMCID: PMC7121992 DOI: 10.1007/978-3-030-31507-8_12] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
Infection of the lung parenchyma, or pneumonia, accounts for over four million deaths per year worldwide (Ferkol and Schraufnagel, Ann Am Thorac Soc 11:404–406, 2014). The condition is common, but also over-diagnosed, in part due to relatively poor laboratory and radiographic diagnostics. Indeed, we continue to rely on antiquated tools such as sputum culture and chest X-ray – the former of which lacks speed and sensitivity, and the latter specificity (Albaum et al. Chest 110:343–50, 1996). The resulting presumptive diagnoses of pneumonia lead to excessive use of empiric broad spectrum antibiotics; indeed, by some estimates, 30–70% of antibiotic prescriptions for lower respiratory tract infection are inappropriate (Kraus, PLoS One 12(3): e0174584, 2017). This approach begets microbial resistance, exposes patients to medication side effects, and puts patients at risk of potentially life-threatening complications including Clostridium difficile colitis. To improve diagnostic certainty in patients with suspected pneumonia, we must begin to consider and implement emerging technologies for efficient and accurate characterization of host responses to infection and identification of pathogens. In this chapter, we will discuss precision diagnostics already in common practice and those poised to be, and how these tools may ultimately enable personalization in the diagnosis of pneumonia.
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Affiliation(s)
- Jose L. Gomez
- Assistant Professor Pulmonary, Critical Care and Sleep Medicine Section, Department of Medicine, Yale University School of Medicine, New Haven, CT USA
| | - Blanca E. Himes
- Assistant Professor of Informatics, Department of Biostatistics, Epidemiology and Informatics, University of Pennsylvania, Philadelphia, PA USA
| | - Naftali Kaminski
- Boehringer-Ingelheim Endowed, Professor of Internal Medicine, Chief of Pulmonary, Critical Care and Sleep Medicine, Yale University School of Medicine, New Haven, CT USA
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Wang Y, Dzakah EE, Kang Y, Cai Y, Wu P, Tang B, Li R, He X. A sensitive and rapid chemiluminescence immunoassay for point-of-care testing (POCT) of copeptin in serum based on high-affinity monoclonal antibodies via cytokine-assisted immunization. Int J Nanomedicine 2019; 14:4293-4307. [PMID: 31354261 PMCID: PMC6580123 DOI: 10.2147/ijn.s200556] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2019] [Accepted: 04/03/2019] [Indexed: 12/30/2022] Open
Abstract
Purpose: Antibodies are key reagents in the development of immunoassay. We attempted to develop high-performance CPP immunoassays using high-affinity monoclonal antibodies prepared via cytokine-assisted immunization. Methods: We used fetal liver tyrosine kinase 3 ligand (Flt3L), CC subtype chemokine ligand 20 (CCL20), and granulocyte-macrophage colony-stimulating factor (GM-CSF) to assist traditional subcutaneous immunization of preparing high-affinity monoclonal antibodies, and further to develop high-performance immunoassay methods for CPP. Results: This novel immune strategy significantly enhanced immune response against CPP. Six anti-CPP monoclonal antibodies (mAbs) with high affinity were successfully screened and selected for application in a fully automated magnetic chemiluminescence immunoassay (CLIA). This robust and rapid assay can efficiently detect CPP in the range of 1.2–1250 pmol L–1 with a detection limit of 6.25 pmol L–1. Significantly, the whole incubation process can be completed in 30 min as compared to about 4.5 hr for the control ELISA kit. Furthermore, this assay exhibited high sensitivity and specificity, low intra-assay and inter-assay coefficients of variation (CVs < 15%). The developed assay was applied in the detection of CPP in 115 random serum samples and results showed a high correlation with data obtained using a commercially available ELISA kit (correlation coefficient, 0.9737). Conclusion: Our assay could be applied in the point-of-care testing of CPP in the serum samples, and also the method developed in this study could be adopted to explore the detection and diagnosis of other biomarkers for various diseases.
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Affiliation(s)
- Yu Wang
- College of Food Science and Engineering, South China University of Technology, Guangzhou 510641, People's Republic of China
| | - Emmanuel Enoch Dzakah
- Dermatology Hospital, Southern Medical University, Guangzhou 510091, People's Republic of China.,Department of Molecular Biology and Biotechnology, School of Biological Sciences, College of Agriculture and Natural Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Ye Kang
- College of Food Science and Engineering, South China University of Technology, Guangzhou 510641, People's Republic of China
| | - Yanxue Cai
- School of Chemical Engineering and Energy Technology, Dongguan University of Technology, Dongguan 523808, People's Republic of China
| | - Peidian Wu
- National & Local United Engineering Lab of Rapid Diagnostic Test, Guangzhou Wondfo Biotech Co., Ltd, Guangzhou 5l0663, People's Republic of China
| | - Bo Tang
- National & Local United Engineering Lab of Rapid Diagnostic Test, Guangzhou Wondfo Biotech Co., Ltd, Guangzhou 5l0663, People's Republic of China
| | - Run Li
- National & Local United Engineering Lab of Rapid Diagnostic Test, Guangzhou Wondfo Biotech Co., Ltd, Guangzhou 5l0663, People's Republic of China
| | - Xiaowei He
- College of Food Science and Engineering, South China University of Technology, Guangzhou 510641, People's Republic of China
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Net reclassification improvement with serial biomarkers and bed-sided spirometry to early predict the need of organ support during the early post-transplantation in-hospital stay in allogeneic HCT recipients. Bone Marrow Transplant 2018; 54:265-274. [DOI: 10.1038/s41409-018-0258-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Revised: 05/17/2018] [Accepted: 05/27/2018] [Indexed: 12/11/2022]
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