scholarly journals Impact of Hemoglobin on Plasma Pro-B-Type Natriuretic Peptide Concentrations in the General Population

2007 ◽  
Vol 53 (11) ◽  
pp. 1921-1927 ◽  
Author(s):  
Mads Nybo ◽  
Marianne Benn ◽  
Rasmus Mogelvang ◽  
Jan Skov Jensen ◽  
Peter Schnohr ◽  
...  

Abstract Background: Age, sex, and renal function contribute to variations in plasma concentrations of B-type natriuretic peptide (BNP) and its molecular precursor (proBNP). Recent studies indicate that anemia may also affect proBNP concentrations in patients with heart failure or stroke. However, the impact of hemoglobin status on proBNP concentrations has not been established in the general population. Methods: In the 4th examination in the Copenhagen City Heart Study, we performed a nested case-control study of 6238 individuals from a Danish general population. Of these, 3497 randomly selected participants also underwent an echocardiographic examination. The population was stratified into groups depending on health and hemoglobin status. Correlations between hemoglobin and proBNP concentrations were examined by simple and multiple regression analyses, adjusted for variables known to influence the proBNP plasma concentration. Results: The mean proBNP concentration was increased 1.7-fold in the group with anemia vs the nonanemic group [mean (SD) 42 (45) pmol/L vs 25 (29) pmol/L, P <0.0001, n = 5892]. Multiple regression analysis confirmed an independent effect of hemoglobin on proBNP concentrations. In a selected subgroup without signs or symptoms of heart disease (n = 2855), lower hemoglobin concentrations, defined as <120 g/L in women and <130 g/L in men, were associated with increased circulating proBNP concentrations, but the contribution to the overall variation in proBNP concentrations was modest. Conclusions: Because moderate anemia is associated with a 1.7-fold increase in proBNP concentrations, hemoglobin concentrations should be taken into consideration in patients with nonspecific symptoms of heart disease and increased proBNP concentrations.

2014 ◽  
Vol 38 (1) ◽  
pp. 74-79 ◽  
Author(s):  
Takuya Hasegawa ◽  
Masanori Asakura ◽  
Kazuo Eguchi ◽  
Hiroshi Asanuma ◽  
Takahiro Ohara ◽  
...  

2014 ◽  
Vol 60 (11) ◽  
pp. 1441-1449 ◽  
Author(s):  
Mahir Karakas ◽  
Andrea Jaensch ◽  
Lutz P Breitling ◽  
Hermann Brenner ◽  
Wolfgang Koenig ◽  
...  

Abstract BACKGROUND Pathophysiological studies suggest that A-type natriuretic peptides (ANPs) might provide valuable information beyond B-type natriuretic peptides (BNPs) about cardiac dysfunction in patients with coronary heart disease (CHD). We aimed to assess the predictive value of midregional pro–A-type natriuretic peptide (MR-proANP) for recurrent cardiovascular disease (CVD) events in stable CHD patients for whom information on N-terminal proBNP (NT-proBNP) was already available. METHODS Plasma concentrations of MR-proANP and NT-proBNP were measured at baseline in a cohort of 1048 patients aged 30–70 years with CHD who were participating in an in-hospital rehabilitation program. Main outcome measures were cardiovascular mortality, nonfatal myocardial infarction, and nonfatal stroke. RESULTS During a median follow-up of 8.1 years, 150 patients (incidence 21.1 per 1000 patient-years) experienced a secondary CVD event. MR-proANP was associated with a hazard ratio (HR) of 1.89 (95% CI, 1.01–3.57) when the top quartile was compared to the bottom quartile in the fully adjusted model (P for trend = 0.011). For NT-proBNP the respective HR was 2.22 (95% CI, 1.19–4.14) with a P for trend = 0.001. Finally, MR-proANP improved various model performance measures, including c-statistics and reclassification metrics, but without being superior to NT-proBNP. CONCLUSIONS Although we found an independent association of MR-proANP as well as NT-proBNP when used as single markers with recurrent CVD events after adjustment for established risk factors, the results of a simultaneous assessment of both markers indicated that MR-proANP fails to provide additional prognostic information to NT-proBNP in the population studied.


2021 ◽  
Author(s):  
Tamilselvam Gunasekaran ◽  
Christopher Brennan ◽  
Robert Sanders

Measurement of N‐terminal pro‐B‐type natriuretic peptide (NT-proBNP) levels has been shown to have clinical significance for diagnosis and management of heart disease in dogs. Evaluation of current reference limits for specific breeds is necessary to ensure the test can accurately distinguish between healthy and diseased animals. The objective of this study is to evaluate the adequacy of currently established NT-proBNP reference limits for clinical use in healthy Salukis. Cardiac health of 33 clinically healthy Salukis was evaluated via echocardiography using available breed standards. Plasma concentrations of NT-proBNP were measured using a commercially available assay. A one-sided 97.5% upper reference limit for the NT-proBNP concentrations was calculated using non-parametric percentile method. The 97.5% upper reference limit was 769 pmol/L (90% CI, 547-1214 pmol/L) for the study dogs. This upper reference limit was within the currently established non-breed specific NT-proBNP upper reference limit of 900 pmol/L. No relationship between sex, age, or body weight on plasma levels of NT-proBNP was noted. Results of this study supports the use of currently available non-breed specific NT-proBNP cut-off values for clinical evaluation of healthy Salukis.


2018 ◽  
Vol 2018 ◽  
pp. 1-6 ◽  
Author(s):  
Rochette Emmanuelle ◽  
Duché Pascale ◽  
Hourdé Christophe ◽  
Evrard Bertrand ◽  
Pereira Bruno ◽  
...  

Objective. In a context of inflammatory disease such as juvenile idiopathic arthritis (JIA), we do not know what impact physical activity may have on a deregulated immune system. The objective is to measure the impact of a single bout of exercise on plasma inflammatory markers such as calprotectin, IL-6, sIL-6R, sgp130, and the hypothalamic-pituitary-adrenal axis in children with juvenile idiopathic arthritis. Methods. Twelve children with JIA performed a nonexercise control day and a consecutive day that included a 20 min exercise bout at 70% of max-HR at 08:30 am. Venous blood samples were taken at 08:30, 08:50, 09:30, 10:30 am, and 12:00 pm to measure plasma concentrations of calprotectin, IL-6, sIL-6R, sgp130, cortisol, and ACTH. Pain was evaluated at 08:30, 08:50 am, and 06:00 pm. Results. There was a transient twofold increase in postexercise self-evaluated pain (p=0.03) that disappeared in the evening. A single bout of exercise resulted in a 1.7-fold increase in plasma calprotectin (p<0.001) but not IL-6 and its soluble receptors. Calprotectin levels returned to baseline within 3 hours after cessation of exercise. Conclusion. Acute exercise in children with JIA induced slightly musculoskeletal leg pain and transient increased plasma calprotectin levels but not IL-6 levels. Trial registration in ClinicalTrials.gov, reference number NCT 02502539, registered on 29 May 2015.


2019 ◽  
Vol 15 (1) ◽  
pp. 44-52
Author(s):  
Sandrine I. Samson ◽  
Kevin Konty ◽  
Wei-Nchih Lee ◽  
Tom Quisel ◽  
Luca Foschini ◽  
...  

Background: We describe the impact of influenza on medical outcomes and daily activities among people with and without type 2 diabetes mellitus (T2DM). Methods: Retrospective cohort analysis of a US health plan offering a digital wellness platform connecting wearable devices capable of tracking steps, sleep, and heart rate. For the 2016 to 2017 influenza season, we compared adults with T2DM to age and gender matched controls. Medical claims were used to define cohorts and identify influenza events and outcomes. Digital tracking data were aggregated at time slices of minute-, day-, week-, and year-level. A pre-post study design compared the peri-influenza period (two weeks before and four weeks after influenza diagnosis) to the six-week preceding period (baseline). Results: A total of 54 656 T2DM and 113 016 non-DM controls were used for the study. People with T2DM had more influenza claims, vaccinations, and influenza antivirals per 100 people (1.96% vs 1.37%, 34.3% vs 24.3%, and 27.1 vs 22 respectively, P < .001). A total of 1086 persons with T2DM and 1567 controls had an influenza claim (47.4% male, median age 54, 6.4% vs 7.8% trackers, respectively). Glycemic events, pneumonia, and ischemic heart disease increased over baseline during the peri-influenza period for T2DM (1.74-, 7.4-, and 1.6-fold increase respectively, P < .01). In a device wearing subcohort, we observed 10 000 fewer steps surrounding the influenza event, with the lowest (5500 steps) two days postinfluenza. Average heart rate increased significantly (+5.5 beats per minute) one day prior to influenza. Conclusion: Influenza increases rates of pneumonia, heart disease, and abnormal glucose levels among people with T2DM, and negatively impacts daily activities compared to controls.


2018 ◽  
Vol 39 (11) ◽  
pp. 867-874 ◽  
Author(s):  
Emmanuelle Rochette ◽  
Etienne Merlin ◽  
Christophe Hourdé ◽  
Bertrand Evrard ◽  
Bruno Peraira ◽  
...  

AbstractThe aim of this study was to measure the impact, at 24 h post-exercise, of a single exercise bout on plasma inflammatory markers such as calprotectin, IL-6, sIL-6 R, sgp130 and the hypothalamic-pituitary-adrenal (HPA) axis in children with juvenile idiopathic arthritis (JIA).Twelve children with JIA attended the laboratory on three consecutive days (control day, exercise day and 24 h post-exercise), including a 20-min exercise bout on a cycle-ergometer at 70% of max. HR at 8:30 a.m. on day 2. Plasma concentrations of calprotectin, IL-6, sIL-6 R, sgp130, cortisol, ACTH and DHEA were measured on venous blood samples taken every day.at rest and at 8:30, 8:50, 9:30, 10:30 a.m. and 12:00, 3:00, 5:30 p.m.A single exercise bout increased plasma calprotectin 1.7-fold (p<0.001) but did not increase IL-6 and soluble IL-6 receptors in short-term post-exercise recovery. However, at 24 h post-exercise, calprotectin, IL-6 and its receptors had decreased compared to control-day levels. There was a transient 2-fold increase in post-exercise self-evaluated pain (p=0.03) that disappeared in the evening without repercussions the following day.Physical activity in children with JIA results in a slight transient systemic inflammation but seems to be followed by counter-regulation at 24 h post-exercise with a decrease in proinflammatory markers.


2005 ◽  
Vol 51 (2) ◽  
pp. 321-327 ◽  
Author(s):  
Wolfgang Koenig ◽  
Dorothee Twardella ◽  
Hermann Brenner ◽  
Dietrich Rothenbacher

Abstract Background: Renal impairment (RI) is associated with worse prognosis. Recently, cystatin C has been shown to represent a potentially superior marker of the glomerular filtration rate compared with creatinine clearance (CrCl). We evaluated the impact of cystatin C and other markers of RI on prognosis in a large cohort of patients with coronary heart disease (CHD). Methods: Cystatin C, creatinine (Cr), and CrCl were determined at baseline in a cohort of 1033 patients (30–70 years) with CHD. Patients were followed for a mean of 33.5 months, and a combined endpoint [fatal and nonfatal cardiovascular disease (CVD) events] was used as the outcome variable. Cystatin C was measured by immunonephelometry, and CrCl was calculated. Results: During follow-up, 71 patients (6.9%) experienced a secondary CVD event. Neither Cr (P = 0.63) nor CrCl (P = 0.10) were associated with incidence of CVD events, whereas cystatin C was clearly associated with risk of secondary CVD events (P &lt;0.0001). In multivariate analyses, patients in the top quintile of the cystatin C distribution at baseline had a statistically significantly increased risk of secondary CVD events even after adjustment for classic risk factors, severity of coronary disease, history of diabetes mellitus, treatment with angiotensin-converting enzyme inhibitors, and C-reactive protein (hazard ratio, 2.27; 95% confidence interval, 1.05–4.91) compared with patients in the bottom quintile. Conclusions: These data support the possibly important prognostic value of cystatin C among patients with known CHD and suggest that it may be a useful clinical marker providing complementary information to established risk determinants.


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