1
|
Noren Hooten N, Mode NA, Allotey S, Ezike N, Zonderman AB, Evans MK. Inflammatory proteins are associated with mortality in a middle-aged diverse cohort. Clin Transl Med 2023; 13:e1412. [PMID: 37743657 PMCID: PMC10518496 DOI: 10.1002/ctm2.1412] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 08/29/2023] [Accepted: 09/04/2023] [Indexed: 09/26/2023] Open
Abstract
BACKGROUND Recent data indicate a decline in overall longevity in the United States. Even prior to the COVID-19 pandemic, an increase in midlife mortality rates had been reported. Life expectancy disparities have persisted in the United States for racial and ethnic groups and for individuals living at low socioeconomic status. These continued trends in mortality indicate the importance of examining biomarkers of mortality at midlife in at-risk populations. Circulating levels of cytokines and inflammatory markers reflect systemic chronic inflammation, which is a well-known driver of many age-related diseases. METHODS In this study, we examined the relationship of nine different inflammatory proteins with mortality in a middle-aged socioeconomically diverse cohort of African-American and White men and women (n = 1122; mean age = 47.8 years). RESULTS We found significant differences in inflammatory-related protein serum levels between African-American and White middle-aged adults. E-selectin and fibrinogen were significantly higher in African-American adults. IFN-γ, TNF-α trimer, monocyte chemoattractant protein-1 (MCP-1), soluble receptor for advanced glycation end-products (sRAGE) and P-selectin were significantly higher in White participants compared to African-American participants. Higher levels of E-selectin, MCP-1 and P-selectin were associated with a higher mortality risk. Furthermore, there was a significant interaction between sex and IL-6 with mortality. IL-6 levels were associated with an increased risk of mortality, an association that was significantly greater in women than men. In addition, White participants with high levels of sRAGE had significantly higher survival probability than White participants with low levels of sRAGE, while African-American participants had similar survival probabilities across sRAGE levels. CONCLUSIONS These results suggest that circulating inflammatory markers can be utilized as indicators of midlife mortality risk in a socioeconomically diverse cohort of African-American and White individuals.
Collapse
Affiliation(s)
- Nicole Noren Hooten
- Laboratory of Epidemiology and Population Science National Institute on AgingNational Institutes of HealthBaltimoreMarylandUSA
| | - Nicolle A. Mode
- Laboratory of Epidemiology and Population Science National Institute on AgingNational Institutes of HealthBaltimoreMarylandUSA
| | - Samuel Allotey
- Laboratory of Epidemiology and Population Science National Institute on AgingNational Institutes of HealthBaltimoreMarylandUSA
- Feinberg School of MedicineNorthwestern UniversityChicagoIllinoisUSA
| | - Ngozi Ezike
- Laboratory of Epidemiology and Population Science National Institute on AgingNational Institutes of HealthBaltimoreMarylandUSA
| | - Alan B. Zonderman
- Laboratory of Epidemiology and Population Science National Institute on AgingNational Institutes of HealthBaltimoreMarylandUSA
| | - Michele K. Evans
- Laboratory of Epidemiology and Population Science National Institute on AgingNational Institutes of HealthBaltimoreMarylandUSA
| |
Collapse
|
2
|
Ramzi ZS. N-Terminal Prohormone Brain Natriuretic Peptide as a Prognostic Biomarker for the Risk of Complications in Type 2 Diabetes: A Systematic Review and Meta-Analysis. Lab Med 2022:6772474. [DOI: 10.1093/labmed/lmac119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
Abstract
Objective
This systematic review and meta-analysis aimed at summarizing the existing clinical evidence to evaluate the prognostic performance of N-terminal prohormone brain natriuretic peptide (NT-proBNP) in predicting cardiovascular events, cardiovascular-related mortality, and all-cause mortality in patients with type 2 diabetes.
Methods
Searches were performed in Medline, Embase, Scopus, and Web of Science databases before August 1, 2021. The data were recorded as adjusted hazard ratio (HR).
Results
An increase in NT-proBNP increases the risk of cardiovascular events (HR = 1.63), cardiovascular mortality (HR = 1.86) and all-cause mortality (HR = 1.54). Seemingly, the best cutoffs for predicting cardiovascular events (HR = 2.30) and cardiovascular mortality (HR = 3.77) are levels greater than 100 pg/mL. The best cutoff of NT-proBNP in predicting all-cause mortality is levels greater than 225 pg/mL (HR = 4.72).
Conclusion
A moderate level of evidence demonstrated that NT-proBNP serum levels can predict future cardiovascular events, cardiovascular mortality, and all-cause mortality. Thus, it can be used as risk stratification for type 2 diabetes.
Collapse
Affiliation(s)
- Zhian Salah Ramzi
- Department of Family and Community Medicine, College of Medicine, University of Sulaimani , Sulaimani , Iraq
| |
Collapse
|
3
|
Stienen S, Ferreira JP, Kobayashi M, Preud'homme G, Dobre D, Machu JL, Duarte K, Bresso E, Devignes MD, López N, Girerd N, Aakhus S, Ambrosio G, Brunner-La Rocca HP, Fontes-Carvalho R, Fraser AG, van Heerebeek L, Heymans S, de Keulenaer G, Marino P, McDonald K, Mebazaa A, Papp Z, Raddino R, Tschöpe C, Paulus WJ, Zannad F, Rossignol P. Enhanced clinical phenotyping by mechanistic bioprofiling in heart failure with preserved ejection fraction: insights from the MEDIA-DHF study (The Metabolic Road to Diastolic Heart Failure). Biomarkers 2020; 25:201-211. [PMID: 32063068 DOI: 10.1080/1354750x.2020.1727015] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Background: Heart failure with preserved ejection fraction (HFpEF) is a heterogeneous syndrome for which clear evidence of effective therapies is lacking. Understanding which factors determine this heterogeneity may be helped by better phenotyping. An unsupervised statistical approach applied to a large set of biomarkers may identify distinct HFpEF phenotypes.Methods: Relevant proteomic biomarkers were analyzed in 392 HFpEF patients included in Metabolic Road to Diastolic HF (MEDIA-DHF). We performed an unsupervised cluster analysis to define distinct phenotypes. Cluster characteristics were explored with logistic regression. The association between clusters and 1-year cardiovascular (CV) death and/or CV hospitalization was studied using Cox regression.Results: Based on 415 biomarkers, we identified 2 distinct clusters. Clinical variables associated with cluster 2 were diabetes, impaired renal function, loop diuretics and/or betablockers. In addition, 17 biomarkers were higher expressed in cluster 2 vs. 1. Patients in cluster 2 vs. those in 1 experienced higher rates of CV death/CV hospitalization (adj. HR 1.93, 95% CI 1.12-3.32, p = 0.017). Complex-network analyses linked these biomarkers to immune system activation, signal transduction cascades, cell interactions and metabolism.Conclusion: Unsupervised machine-learning algorithms applied to a wide range of biomarkers identified 2 HFpEF clusters with different CV phenotypes and outcomes. The identified pathways may provide a basis for future research.Clinical significanceMore insight is obtained in the mechanisms related to poor outcome in HFpEF patients since it was demonstrated that biomarkers associated with the high-risk cluster were related to the immune system, signal transduction cascades, cell interactions and metabolismBiomarkers (and pathways) identified in this study may help select high-risk HFpEF patients which could be helpful for the inclusion/exclusion of patients in future trials.Our findings may be the basis of investigating therapies specifically targeting these pathways and the potential use of corresponding markers potentially identifying patients with distinct mechanistic bioprofiles most likely to respond to the selected mechanistically targeted therapies.
Collapse
Affiliation(s)
- Susan Stienen
- CHRU de Nancy, F-CRIN INI-CRCT (Cardiovascular and Renal Clinical Trialists), INSERM U1116, Centre d'Investigation Clinique et Plurithématique 1433, INSERM, Université de Lorraine, Nancy, France
| | - João Pedro Ferreira
- CHRU de Nancy, F-CRIN INI-CRCT (Cardiovascular and Renal Clinical Trialists), INSERM U1116, Centre d'Investigation Clinique et Plurithématique 1433, INSERM, Université de Lorraine, Nancy, France.,Department of Physiology and Cardiothoracic Surgery, Cardiovascular Research and Development Unit, Faculty of Medicine, University of Porto, Porto, Portugal
| | - Masatake Kobayashi
- CHRU de Nancy, F-CRIN INI-CRCT (Cardiovascular and Renal Clinical Trialists), INSERM U1116, Centre d'Investigation Clinique et Plurithématique 1433, INSERM, Université de Lorraine, Nancy, France
| | - Gregoire Preud'homme
- CHRU de Nancy, F-CRIN INI-CRCT (Cardiovascular and Renal Clinical Trialists), INSERM U1116, Centre d'Investigation Clinique et Plurithématique 1433, INSERM, Université de Lorraine, Nancy, France
| | - Daniela Dobre
- CHRU de Nancy, F-CRIN INI-CRCT (Cardiovascular and Renal Clinical Trialists), INSERM U1116, Centre d'Investigation Clinique et Plurithématique 1433, INSERM, Université de Lorraine, Nancy, France.,Clinical research and Investigation Unit, Psychotherapeutic Center of Nancy, Laxou, France
| | - Jean-Loup Machu
- CHRU de Nancy, F-CRIN INI-CRCT (Cardiovascular and Renal Clinical Trialists), INSERM U1116, Centre d'Investigation Clinique et Plurithématique 1433, INSERM, Université de Lorraine, Nancy, France
| | - Kevin Duarte
- CHRU de Nancy, F-CRIN INI-CRCT (Cardiovascular and Renal Clinical Trialists), INSERM U1116, Centre d'Investigation Clinique et Plurithématique 1433, INSERM, Université de Lorraine, Nancy, France
| | - Emmanuel Bresso
- Equipe CAPSID, LORIA (CNRS, Inria NGE, Université de Lorraine), Vandoeuvre-lès-Nancy, France
| | | | - Natalia López
- Navarrabiomed, Complejo Hospitalario de Navarra (CHN), Universidad Pública de Navarra (UPNA), IdiSNA, Pamplona, Spain
| | - Nicolas Girerd
- CHRU de Nancy, F-CRIN INI-CRCT (Cardiovascular and Renal Clinical Trialists), INSERM U1116, Centre d'Investigation Clinique et Plurithématique 1433, INSERM, Université de Lorraine, Nancy, France
| | - Svend Aakhus
- Department of Cardiology and Institute for Surgical Research, Oslo University Hospital, Oslo, Norway.,ISB, Norwegian University of Science and Technology, Trondheim, Norway
| | - Giuseppe Ambrosio
- Division of Cardiology, University of Perugia School of Medicine, Perugia, Italy
| | | | - Ricardo Fontes-Carvalho
- Department of Surgery and Physiology, Cardiovascular Research Unit (UnIC), Faculty of Medicine, University of Porto, Porto, Portugal
| | - Alan G Fraser
- Wales Heart Research Institute, Cardiff University, Cardiff, UK
| | - Loek van Heerebeek
- Department of Cardiology, Onze Lieve Vrouwe Gasthuis, Amsterdam, the Netherlands
| | - Stephane Heymans
- Department of Cardiology, CARIM School for Cardiovascular Diseases Faculty of Health, Medicine and Life Sciences, Maastricht University, Maastricht, the Netherlands.,Department of Cardiovascular Sciences, Centre for Molecular and Vascular Biology, Leuven, Belgium.,William Harvey Research Institute, Barts Heart Centre, Queen Mary University of London, London, UK
| | - Gilles de Keulenaer
- Laboratory of Physiopharmacology, Antwerp University, and ZNA Hartcentrum, Antwerp, Belgium
| | - Paolo Marino
- Clinical Cardiology, Università del Piemonte Orientale, Department of Translational Medicine, Azienda Ospedaliero Universitaria "Maggiore della Carità", Novara, Italy
| | - Kenneth McDonald
- School of Medicine and Medical Sciences, St Michael's Hospital Dun Laoghaire Co. Dublin, Dublin, Ireland
| | - Alexandre Mebazaa
- Department of Anaesthesiology and Critical Care Medicine, Saint Louis and Lariboisière University Hospitals and INSERM UMR-S 942, Paris, France
| | - Zoltàn Papp
- Division of Clinical Physiology, Department of Cardiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Riccardo Raddino
- Department of Cardiology, Spedali Civili di Brescia, Brescia, Italy
| | - Carsten Tschöpe
- Department of Cardiology, Campus Virchow-Klinikum, C, Harite Universitaetsmedizin Berlin, Berlin Institute of Health - Center for Regenerative Therapies (BIH-BCRT), and the German Center for Cardiovascular Research (DZHK; Berlin partner site), Berlin, Germany
| | - Walter J Paulus
- Amsterdam Cardiovascular Sciences, Amsterdam University Medical Centers, Amsterdam, the Netherlands
| | - Faiez Zannad
- CHRU de Nancy, F-CRIN INI-CRCT (Cardiovascular and Renal Clinical Trialists), INSERM U1116, Centre d'Investigation Clinique et Plurithématique 1433, INSERM, Université de Lorraine, Nancy, France
| | - Patrick Rossignol
- CHRU de Nancy, F-CRIN INI-CRCT (Cardiovascular and Renal Clinical Trialists), INSERM U1116, Centre d'Investigation Clinique et Plurithématique 1433, INSERM, Université de Lorraine, Nancy, France
| |
Collapse
|
4
|
Wu S, Yang D, Pan L, Shan J, Li H, Wei H, Wang B, Huang J, Baccarelli AA, Shima M, Deng F, Guo X. Ambient temperature and cardiovascular biomarkers in a repeated-measure study in healthy adults: A novel biomarker index approach. ENVIRONMENTAL RESEARCH 2017; 156:231-238. [PMID: 28359041 DOI: 10.1016/j.envres.2017.02.036] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2016] [Revised: 01/27/2017] [Accepted: 02/21/2017] [Indexed: 05/15/2023]
Abstract
BACKGROUND Associations of ambient temperature with cardiovascular morbidity and mortality have been well documented in numerous epidemiological studies, but the underlying pathways remain unclear. We investigated whether systemic inflammation, coagulation, systemic oxidative stress, antioxidant activity and endothelial function may be the mechanistic pathways associated with ambient temperature. METHODS Forty study participants underwent repeated blood collections for 12 times in Beijing, China in 2010-2011. Ambient temperature and air pollution data were measured in central monitors close to student residences. We created five indices as the sum of weighted biomarker percentiles to represent the overall levels of 15 cardiovascular biomarkers in five pathways (systemic inflammation: hs-CRP, TNF-α and fibrinogen; coagulation: fibrinogen, PAI-1, tPA, vWF and sP-selectin; systemic oxidative stress: Ox-LDL and sCD36: antioxidant activity: EC-SOD and GPX1; and endothelial function: ET-1, E-selectin, ICAM-1 and VCAM-1). We used generalized mixed-effects models to estimate temperature effects controlling for air pollution and other covariates. RESULTS There were significant decreasing trends in the adjusted means of biomarker indices over the lowest to the highest quartiles of daily temperatures before blood collection. A 10°C decrease at 2-d average daily temperature were associated with increases of 2.5% [95% confidence interval (CI): 0.7, 4.2], 1.6% (95% CI: 0.1, 3.1), 2.7% (95% CI: 0.5, 4.8), 5.5% (95% CI: 3.8, 7.3) and 2.0% (95% CI: 0.3, 3.8) in the indices for systemic inflammation, coagulation, systemic oxidative stress, antioxidant activity and endothelial function, respectively. In contrast, the associations between ambient temperature and individual biomarkers had substantial variation in magnitude and strength. CONCLUSIONS The altered cardiovascular biomarker profiles in healthy adults associated with ambient temperature changes may help explain the temperature-related cardiovascular morbidity and mortality. The biomarker index approach may serve as a novel tool to capture ambient temperature effects.
Collapse
Affiliation(s)
- Shaowei Wu
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, No. 38 Xueyuan Road, Beijing, China
| | - Di Yang
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, No. 38 Xueyuan Road, Beijing, China
| | - Lu Pan
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, No. 38 Xueyuan Road, Beijing, China
| | - Jiao Shan
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, No. 38 Xueyuan Road, Beijing, China
| | - Hongyu Li
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, No. 38 Xueyuan Road, Beijing, China
| | - Hongying Wei
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, No. 38 Xueyuan Road, Beijing, China
| | - Bin Wang
- Institute of Reproductive & Child Health, School of Public Health, Peking University, Beijing, China
| | - Jing Huang
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, No. 38 Xueyuan Road, Beijing, China
| | - Andrea A Baccarelli
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, NY, USA
| | - Masayuki Shima
- Department of Public Health, Hyogo College of Medicine, Hyogo, Japan
| | - Furong Deng
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, No. 38 Xueyuan Road, Beijing, China.
| | - Xinbiao Guo
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, No. 38 Xueyuan Road, Beijing, China.
| |
Collapse
|
5
|
Holmager P, Schou M, Egstrup M, Gustafsson I, Goetze JP, Gustafsson F, Klausen TW, Faber J, Kistorp C. The influence of diabetes mellitus on midregional proadrenomedullin concentrations and prognostic value in heart failure outpatients. J Card Fail 2014; 21:250-7. [PMID: 25528198 DOI: 10.1016/j.cardfail.2014.12.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2014] [Revised: 12/08/2014] [Accepted: 12/10/2014] [Indexed: 01/14/2023]
Abstract
BACKGROUND Diabetes mellitus (DM) is associated with an adverse outcome in heart failure (HF). Increased concentrations of midregional proadrenomedullin (MR-proADM) have been associated with DM and are predictors of mortality in HF patients. The aim of this study was to elucidate the impact of DM on MR-proADM concentrations and the prognostic value regarding all-cause mortality and hospitalization among HF patients. METHODS AND RESULTS We included 366 patients from an HF clinic; 69 (19%) had a history of DM and 40 (11%) had newly diagnosed DM (HbA1c ≥48 mmol/mol). The median MR-proADM concentration was unaffected by DM status (P = .20) but increased in HF patients with impaired renal function (P < .001). During a median follow-up of 55 months, 189 died, and 292 either died or were hospitalized. After adjustment for clinically relevant parameters, MR-proADM was associated with all-cause mortality (hazard ratio [HR] 1.3, 95% confidence interval [CI] 1.1-1.4; P = .01) and the combined end point of death and hospitalization (HR 1.2, 95% CI 1.1-1.4; P = .02) per 1 SD increment of ln-transformed variable. No interaction between DM and MR-proADM was found regarding mortality or hospitalization. CONCLUSIONS Diabetes status had no impact on MR-proADM concentrations or in the predictive ability of MR-proADM in HF patients.
Collapse
Affiliation(s)
- Pernille Holmager
- Endocrine Unit, Department of Medicine, Herlev University Hospital, Herlev, Denmark.
| | - Morten Schou
- Department of Cardiology, Herlev University Hospital, Herlev, Denmark
| | - Michael Egstrup
- Department of Cardiology, Bispebjerg University Hospital, Copenhagen, Denmark
| | - Ida Gustafsson
- Department of Cardiology, Hvidovre University Hospital, Hvidovre, Denmark
| | - Jens Peter Goetze
- Department of Clinical Biochemistry, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Finn Gustafsson
- Department of Cardiology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | | | - Jens Faber
- Endocrine Unit, Department of Medicine, Herlev University Hospital, Herlev, Denmark; Faculty of Health Sciences, Copenhagen University, Copenhagen, Denmark
| | - Caroline Kistorp
- Endocrine Unit, Department of Medicine, Herlev University Hospital, Herlev, Denmark; Faculty of Health Sciences, Copenhagen University, Copenhagen, Denmark
| |
Collapse
|
6
|
Pozsonyi Z, Förhécz Z, Gombos T, Karádi I, Jánoskuti L, Prohászka Z. Copeptin (C-terminal pro arginine-vasopressin) is an independent long-term prognostic marker in heart failure with reduced ejection fraction. Heart Lung Circ 2014; 24:359-67. [PMID: 25618448 DOI: 10.1016/j.hlc.2014.10.008] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2013] [Revised: 07/15/2014] [Accepted: 10/21/2014] [Indexed: 01/10/2023]
Abstract
BACKGROUND The level of copeptin, a stable fragment of pro-arginine-vasopressin (AVP), correlates with disease severity. It is an established, short-term prognostic marker for patients with heart failure with reduced ejection fraction (HFREF). We aimed to examine the association between copeptin and long-term mortality. We also studied the clinical usefulness of copeptin as a prognostic biomarker by analysing the improvement of net reclassification. METHODS Copeptin concentrations were measured in a cohort of 195 consecutive patients with HFREF. Disease severity and clinical parameters were determined at baseline, and all-cause mortality was recorded after five-year follow-up. RESULTS One hundred and ten patients died during the five-year follow-up (five-year mortality rate: 0.56). Univariate analysis identified copeptin (HR 2.168 [95% CI 1.740-2.700]) as a predictor of mortality. The final, multivariable Cox survival model identified a number of independent predictors of death. These included higher NHYA functional class, previous MI, at least one hospitalisation for worsening HF (within the two years before inclusion into the study), elevated blood urea nitrogen, NT-proBNP-, and copeptin levels, as well as increased red blood cell distribution width, and decreased GFR. The addition of copeptin alone to the baseline predictive model (NT-proBNP only) resulted in a minor (8.21%) improvement, whereas the final, multivariable model showed a significant increase in net reclassification (10.26%, p=0.015). CONCLUSIONS These data indicate that copeptin is an independent long-term prognostic marker in HFREF, with possible clinical relevance for multimarker risk prediction algorithms.
Collapse
Affiliation(s)
- Zoltán Pozsonyi
- 3(rd) Department of Internal Medicine, Semmelweis University, Kutvolgyi ut 4, Budapest, H-1114, Hungary.
| | - Zsolt Förhécz
- 3(rd) Department of Internal Medicine, Semmelweis University, Kutvolgyi ut 4, Budapest, H-1114, Hungary
| | - Tímea Gombos
- 3(rd) Department of Internal Medicine, Semmelweis University, Kutvolgyi ut 4, Budapest, H-1114, Hungary
| | - István Karádi
- 3(rd) Department of Internal Medicine, Semmelweis University, Kutvolgyi ut 4, Budapest, H-1114, Hungary
| | - Lívia Jánoskuti
- 3(rd) Department of Internal Medicine, Semmelweis University, Kutvolgyi ut 4, Budapest, H-1114, Hungary
| | - Zoltán Prohászka
- 3(rd) Department of Internal Medicine, Semmelweis University, Kutvolgyi ut 4, Budapest, H-1114, Hungary
| |
Collapse
|
7
|
Pandey KN. Guanylyl cyclase/natriuretic peptide receptor-A signaling antagonizes phosphoinositide hydrolysis, Ca(2+) release, and activation of protein kinase C. Front Mol Neurosci 2014; 7:75. [PMID: 25202235 PMCID: PMC4141235 DOI: 10.3389/fnmol.2014.00075] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2014] [Accepted: 08/05/2014] [Indexed: 11/25/2022] Open
Abstract
Thus far, three related natriuretic peptides (NPs) and three distinct sub-types of cognate NP receptors have been identified and characterized based on the specific ligand binding affinities, guanylyl cyclase activity, and generation of intracellular cGMP. Atrial and brain natriuretic peptides (ANP and BNP) specifically bind and activate guanylyl cyclase/natriuretic peptide receptor-A (GC-A/NPRA), and C-type natriuretic peptide (CNP) shows specificity to activate guanylyl cyclase/natriuretic peptide receptor-B (GC-B/NPRB). All three NPs bind to natriuretic peptide receptor-C (NPRC), which is also known as clearance or silent receptor. The NPRA is considered the principal biologically active receptor of NP family; however, the molecular signaling mechanisms of NP receptors are not well understood. The activation of NPRA and NPRB produces the intracellular second messenger cGMP, which serves as the major signaling molecule of all three NPs. The activation of NPRB in response to CNP also produces the intracellular cGMP; however, at lower magnitude than that of NPRA, which is activated by ANP and BNP. In addition to enhanced accumulation of intracellular cGMP in response to all three NPs, the levels of cAMP, Ca2+ and inositol triphosphate (IP3) have also been reported to be altered in different cells and tissue types. Interestingly, ANP has been found to lower the concentrations of cAMP, Ca2+, and IP3; however, NPRC has been proposed to increase the levels of these metabolic signaling molecules. The mechanistic studies of decreased and/or increased levels of cAMP, Ca2+, and IP3 in response to NPs and their receptors have not yet been clearly established. This review focuses on the signaling mechanisms of ANP/NPRA and their biological effects involving an increased level of intracellular accumulation of cGMP and a decreased level of cAMP, Ca2+, and IP3 in different cells and tissue systems.
Collapse
Affiliation(s)
- Kailash N Pandey
- Department of Physiology, School of Medicine, Tulane University Health Sciences Center New Orleans, LA, USA
| |
Collapse
|
8
|
Endothelial cell activation during edematous attacks of hereditary angioedema types I and II. J Allergy Clin Immunol 2014; 133:1686-91. [DOI: 10.1016/j.jaci.2013.12.1072] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2013] [Revised: 12/20/2013] [Accepted: 12/24/2013] [Indexed: 12/29/2022]
|
9
|
Yao F, Liu L, Zhang Y, Huang Y, Liu D, Lin H, Liu Y, Fan R, Li C, Deng C. Erectile dysfunction may be the first clinical sign of insulin resistance and endothelial dysfunction in young men. Clin Res Cardiol 2013; 102:645-51. [PMID: 23681359 DOI: 10.1007/s00392-013-0577-y] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2012] [Accepted: 04/30/2013] [Indexed: 11/27/2022]
Abstract
OBJECTIVES The purpose of this study is to investigate the possible underlying pathogenesis of erectile dysfunction (ED) without well-known etiology in young men under the age of 40 years. METHODS 192 patients and 33 normal controls were enrolled. ED was evaluated by using the International Index of Erectile Function-5 (IIEF-5) questionnaire. Traditional cardiovascular risk factors, hormone levels, and vascular parameters were measured. Insulin resistance (IR) was measured by homeostasis model assessment (HOMA). RESULTS Patients with ED had significantly higher levels of systolic blood pressure (SBP), high-sensitivity C-reactive protein (Hs-CRP), high Insulin resistance index (HOMA-IR) and carotid intima-media thickness (IMT), compared with controls. The brachial artery endothelium-dependent flow-mediated vasodilation (FMD) values were significantly lower in ED patients. By multivariate logistic regression analysis, FMD, SBP, Hs-CRP and HOMA-IR were significantly associated with ED. In receiver-operating characteristic (ROC) analysis, FMD was a significant predictor of ED (area under the curve (AUC) 0.933, p < 0.001). The cutoff value of FMD <10.4 % had sensitivity of 81.3 % and specificity of 100 %. HOMA-IR was also proven to be predictor of ED (AUC of HOMA-IR 0.759, p < 0.001). CONCLUSIONS ED may be the first clinical sign of endothelial dysfunction and a clinical marker of cardiovascular and metabolic diseases. Subclinical endothelial dysfunction and insulin resistance may be the underlying pathogenesis of ED in young patients without well-known etiology. Measurement of FMD, HOMA-IR can improve our ability to predict and treat ED, as well as subclinical cardiovascular disease early in young men.
Collapse
Affiliation(s)
- Fengjuan Yao
- Department of Ultrasound, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | | | | | | | | | | | | | | | | | | |
Collapse
|
10
|
van Buuren F, Mellwig KP, Prinz C, Körber B, Fründ A, Fritzsche D, Faber L, Kottmann T, Bogunovic N, Dahm J, Horstkotte D. Electrical myostimulation improves left ventricular function and peak oxygen consumption in patients with chronic heart failure: results from the exEMS study comparing different stimulation strategies. Clin Res Cardiol 2013; 102:523-34. [DOI: 10.1007/s00392-013-0562-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2012] [Accepted: 04/03/2013] [Indexed: 12/29/2022]
|
11
|
Lisi M, Oelze M, Dragoni S, Liuni A, Steven S, Luca MC, Stalleicken D, Münzel T, Laghi-Pasini F, Daiber A, Parker JD, Gori T. Chronic protection against ischemia and reperfusion-induced endothelial dysfunction during therapy with different organic nitrates. Clin Res Cardiol 2012; 101:453-9. [PMID: 22298019 DOI: 10.1007/s00392-012-0412-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2011] [Accepted: 01/16/2012] [Indexed: 01/30/2023]
Abstract
INTRODUCTION Ischemic and pharmacologic preconditioning have great clinical potential, but it remains unclear whether their effects can be maintained over time during repeated exposure.We have previously demonstrated that the acute protective effect of nitroglycerin (GTN) is attenuated during repeated daily administration. Pentaerythrityl tetranitrate (PETN) is an organic nitrate with different hemodynamic and biochemical properties. The purpose of the current experiment was to study the preconditioning-like effects of PETN and GTN during repeated daily exposure. METHODS AND RESULTS In a randomized, investigator-blind parallel trial, 30 healthy (age 25-32) volunteers were randomized to receive (1) transdermal GTN (0.6 mg/h) administered for 2 h a day for 6 days; (2) oral PETN (80 mg) once a day for 6 days; or (3) no therapy. One week later, endothelium-dependent flow-mediated dilation was assessed before and after exposure to ischemia and reperfusion (IR). IR caused a significant blunting of the endothelium-dependent relaxation in the control group (FMD before IR: 5.8 ± 2.1%; after IR 1.0 ± 2.1%; P < 0.01). Daily, 2-h exposure to GTN partially prevented IR-induced endothelial dysfunction (FMD before IR: 7.7 ± 2.4%; after IR 4.3 ± 3.0%; P < 0.01 compared to before IR). In contrast, daily PETN administration afforded greater protection from IR-induced endothelial injury (FMD before IR: 7.9 ± 1.7%; after IR 6.4 ± 5.3%, P = ns; P < 0.05 ANOVA across groups). In vitro, incubation of human endothelial cells with GTN (but not PETN) was associated with inhibition (P < 0.01) of aldehyde dehydrogenase, an enzyme that is important for both nitrate biotransformation and ischemic preconditioning. DISCUSSION We previously showed that upon repeated administration, the preconditioning-like effects of GTN are attenuated. The present data demonstrate a gradient in the extent of protection afforded by the two nitrates, suggesting that PETN-induced preconditioning is maintained after prolonged administration in a human in vivo model of endothelial dysfunction induced by ischemia. Using isolated human endothelial cells, we propose a mechanistic explanation for this observation based on differential effects of GTN versus PETN on the activity of mitochondrial aldehyde dehydrogenase.
Collapse
Affiliation(s)
- Monica Lisi
- Department of Clinical Medicine and Immunological Sciences, University of Siena, Siena, Italy
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
12
|
Gombos T, Förhécz Z, Pozsonyi Z, Széplaki G, Kunde J, Füst G, Jánoskuti L, Karádi I, Prohászka Z. Complement anaphylatoxin C3a as a novel independent prognostic marker in heart failure. Clin Res Cardiol 2012; 101:607-15. [PMID: 22373875 DOI: 10.1007/s00392-012-0432-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2011] [Accepted: 02/20/2012] [Indexed: 10/28/2022]
Abstract
OBJECTIVES The purpose of this study was to evaluate complement activation in a heart failure cohort. Based on their powerful biological activity, we hypothesized that the levels of anaphylatoxin C3a are related to pathological signs and outcomes in heart failure. DESIGN, SETTING AND PATIENTS Complement activation products C3a and SC5b9 were determined in 182 consecutive CHF patients (single centre, prospective cohort study), with a left ventricular ejection fraction <45%. Mortality and re-hospitalisation due to the progression of CHF were assessed after a median follow-up of 14 months. INTERVENTIONS None. RESULTS In the univariate analysis, high level of anaphylatoxin C3a was significantly associated with clinical events (p < 0.0001), whereas SC5b9 showed a tendency of association (p = 0.094). In multivariable Cox analysis, adjusted for age, NT-proBNP, diastolic blood pressure, body mass index (BMI), haemoglobin and creatinine levels, C3a was a significant predictor of HF-related re-hospitalization or death (HR 1.189 per 1-SD increase, 95% CI 1.023-1.383), and of cardiovascular events or death (HR 1.302, CI 1.083-1.566). C3a was strongly associated with the presence of peripheral oedema, inflammatory markers (CRP, prealbumin, IL-6, sTNFRI, sTNFRII), heat-shock protein 70 levels and endothelial activation markers (von-Willebrand factor and endothelin-1). CONCLUSIONS Results of the present study showed that complement activation is strongly linked to unfavourable outcomes in heart failure. High levels of anaphylatoxin C3a predicted re-hospitalization, cardiovascular events and mortality in adjusted survival model. Increased C3a levels were associated with biomarkers of acute-phase reaction, inflammation, cellular stress response, endothelial-cell activation and oedematous complications independently from disease severity.
Collapse
Affiliation(s)
- Tímea Gombos
- IIIrd Department of Internal Medicine, Semmelweis University, Kútvölgyi út 4, Budapest 1125, Hungary
| | | | | | | | | | | | | | | | | |
Collapse
|