scholarly journals Relevant Biomarkers in Medical Practices: An Analysis of the Needs Addressed by an International Survey

2022 ◽  
Vol 12 (1) ◽  
pp. 106
Author(s):  
Laure Abensur Vuillaume ◽  
Thierry Leichle ◽  
Pierrick Le Borgne ◽  
Mathieu Grajoszex ◽  
Christophe Goetz ◽  
...  

(1) Backround: Technological advances should foster gains in physicians’ efficiency. For example, a reduction of the medical decision time can be enabled by faster biological tests. The main objective of this study was to collect responses from an international panel of physicians on their needs for biomarkers and also to convey the improvement in the outcome to be made possible by the potential development of fast diagnostic tests for these biomarkers. (2) Methods: we distributed a questionnaire on the Internet to physicians. (3) Results: 508 physicians participated in this survey. The mean age was 38 years. General practice and emergency medicine were heavily represented, with 95% CIs of 44% (39.78, 48.41) and 32% (27.84, 35.94)), respectively. The two most represented countries were France (95% CI: 74% (70.20, 77.83)) and the USA (95% CI: 11% (8.65, 14.18)). Ninety-eight percentages of the physicians thought that obtaining cited biomarkers more quickly would be beneficial to their practice and to patient’s care. The main biomarkers of interest identified by our panel were troponin (95% CI: 51% (46.24, 54.94)), C-reactive protein (95% CI: 42% (38.03, 46.62)), D-dimer (95% CI: 29% (24.80, 32.68)), and brain natriuretic peptide (95% CI: 13% (10.25, 16.13)). (4) Conclusions: Our study highlights the real technological need for fast biomarker results, which could be provided by biosensors. The relevance of some answers such as troponin is questionable.

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Anne-Christine Bay-Jensen ◽  
Asger Bihlet ◽  
Inger Byrjalsen ◽  
Jeppe Ragnar Andersen ◽  
Bente Juhl Riis ◽  
...  

AbstractThe heterogeneous nature of osteoarthritis (OA) and the need to subtype patients is widely accepted in the field. The biomarker CRPM, a metabolite of C-reactive protein (CRP), is released to the circulation during inflammation. Blood CRPM levels have shown to be associated with disease activity and response to treatment in rheumatoid arthritis (RA). We investigated the level of blood CRPM in OA compared to RA using data from two phase III knee OA and two RA studies (N = 1591). Moreover, the association between CRPM levels and radiographic progression was investigated. The mean CRPM levels were significantly lower in OA (8.5 [95% CI 8.3–8.8] ng/mL, n = 781) compared to the RA patients (12.8 [9.5–16.0] ng/mL, n = 60); however, a significant subset of OA patients (31%) had CRPM levels (≥ 9 ng/mL) comparable to RA. Furthermore, OA patients (n = 152) with CRPM levels ≥ 9 ng/mL were more likely to develop contra-lateral knee OA assessed by X-ray over a two-year follow-up period with an odds ratio of 2.2 [1.0–4.7]. These data suggest that CRPM is a blood-based biochemical marker for early identification OA patients with an inflammatory phenotype.


2009 ◽  
Vol 16 (5) ◽  
pp. 584-590 ◽  
Author(s):  
Zuzana Zenáhlíková ◽  
Jan Kvasnička ◽  
Zuzana Kudrnová ◽  
Magda Sudrová ◽  
Radka Brzežková ◽  
...  

The objective of our study was to examine the changes in coagulation parameters and inflammatory reaction over the course of 15 days in patients with severe sepsis. We tried to identify mechanisms by which sepsis-induced pathophysiological changes may influence the effectiveness of subcutaneously (SC) administered enoxaparin 40 mg once daily. A total of 16 patients (8 men, 8 women; age 35-83 years) meeting the inclusion criteria of severe sepsis were enrolled in this study. The follow-up was performed on days 1, 2, 3, 6, 9, 12, and 15 of hospitalization at the intensive care unit (ICU). Blood coagulation (activated partial thromboplastin time [aPTT], prothrombin time [PT], fibrinogen, antithrombin (AT), protein C [PC], D-dimer, fragment 1.2 [F1.2], factor Xa [FXa] inhibition) and inflammatory reactants (interleukin 6 [IL-6], C-reactive protein [CRP], orosomucoid, α-1-antitrypsin) were tested. The mean FXa inhibition was 0.17 (±0.17) IU/mL. The arbitrarily established range of FXa inhibition for prophylaxis, 0.2 to 0.4 IU/mL, was reached in 22 cases (20%), while in 74 cases (68%), it was below and in 13 cases (12%) above the aforementioned range. Factor Xa inhibition positively correlated with AT (r = .42; P < .001) and PC (r = .45; P < .001) activities. A negative correlation was found between the FXa inhibition and α-1-antitrypsin concentrations (r = —.33; P = .01) but only in the subgroup with α-1-antitrypsin concentrations ≥2.2 g/L. We confirmed that in most patients with sepsis, the prophylaxis with enoxaparin did not lead to the required FXa inhibition. The inhibition of FXa by enoxaparin depends mainly on the AT and PC activities.


2020 ◽  
Author(s):  
Guner Cakmak ◽  
Baris Mantoglu ◽  
Emre Gonullu ◽  
Kayhan Ozdemir ◽  
Burak Kamburoglu

Abstract Background: The objective of this study was to retrospectively compare clinical features and prognostic values between the patients who were referred to the general surgery clinic of our hospital with the presumed diagnosis of acute appendicitis and underwent positive or negative appendectomy.Methods: Patients were divided into two groups as positive (PA) (n:362) and negative appendectomy (NA) (n:284) and the data obtained were compared between these two groups.Laboratory investigations were performed in all patients, and white blood cell (WBC), mean platelet volume (MPV), neutrophils count (NEU), neutrophils (%) (NEU%), C-reactive protein (CRP) and total bilirubin (TBIL) values were studied.Results: The mean MPV value was found as 7.88 fl in PA groups and 8.09 fl in NA group, and the mean MPV value was not statistically significantly difference in PA group, compared to NA groups (p=0.012). Laboratory parameters were also compared between genders. Accordingly, the mean MPV value was statistically significantly higher in female patients compared to male patients in PA group (p = 0.04). The mean TBIL value was 0.97 mg/dl in PA group and 0.69 mg/dl in NA group, and the mean TBIL value was statistically significantly higher in PA group (p< 0.001). Finally, TBIL value was statistically significantly lower in female patients compared to male patients in NA and PA group (p < 0.05).Conclusions: According to the results of our study, MPV and T. BIL values differ in PA and NA groups depending on gender. Therefore, these values may not be used as specific biomarkers in predicting positive acute appendicitis. We believe that these results will contribute to the literature and will be guiding for future studies.


2017 ◽  
Vol 28 (1) ◽  
pp. 41
Author(s):  
Alia E. Al-Ubadi

Association between Procalcitonin (PCT) and C-reactive protein (CRP) and burn injury was evaluated in 80 burned patients from Al-Kindy and Imam Ali hospitals in Baghdad-Iraq. Patients were divided into two groups, survivor group 56 (70%) and non-survivor group 24 (30%). PCT was estimated using (Human Procalcitonin ELISA kit) provided by RayBio/USA while CRP was performed using a latex agglutination kit from Chromatest (Spain). Our results declared that the mean of Total Body Surface Area (TBSA %) affected were 63.5% range (36%–95%) in non-survivor patients, while 26.5% range (10%–70%) in survivor patients. There is a significant difference between the two groups (P = 0.00), the higher mean percentage of TBSA has a significant association with mortality. Serum PCT and CRP were measured at the three times of sampling (within the first 48hr following admission, after 5thdays and after 10th days). The mean of PCT serum concentrations in non-survivor group (2638 ± 3013pg/ml) were higher than that of survivor group (588 ± 364pg/ml). Significantly high levels of CRP were found between the survivor and non-survivor groups especially in the 10th day of admission P=0.000, present study show that significant differences is found within the non-survivor group through the three times P= 0.01, while results were near to significant differences within survivor group through the three times (P= 0.05).


2009 ◽  
Vol 28 (12) ◽  
pp. 739-745 ◽  
Author(s):  
Davood Attaran ◽  
Shahrzad M Lari ◽  
Mohammad Khajehdaluee ◽  
Hossein Ayatollahi ◽  
Mohammad Towhidi ◽  
...  

Background: Sulfur mustard (SM) is a chemical warfare agent that can cause serious pulmonary complications. This study was designed to determine serum highly sensitive C-reactive protein (hs-CRP) and evaluate its correlation with lung function parameters in patients with chronic obstructive pulmonary disease (COPD) due to SM poisoning. Methods: Fifty consecutive SM patients with stable COPD and a mean age 46.3 ± 9.18 years were enrolled in this cross sectional study. Thirty healthy men were selected as controls. Lung function parameters were evaluated. Serum hs-CRP by immunoturbidometry assay was measured in both the patients and controls. Results: In the case group, the mean forced expiratory volume in one second (FEV1) was 2.14 ± 0.76 L (58.98% ± 17.51% predicted). The mean serum hs-CRP was 9.4 ± 6.78 SD and 3.9 ± 1.92 SD mg/L in the cases and controls, respectively, with significant statistical differences (p < .001). There was negative correlation between the serum hs-CRP and FEV1 levels (p = .01). The serum hs-CRP levels were also correlated with Global Initiative for Chronic Obstructive Lung disease (GOLD) stages (r = .45, p < .001). Conclusions: Our findings suggest that the serum hs-CRP level is increased in SM patients with COPD and may have a direct correlation with disease severity. It may then be used as a marker for the severity of COPD in patients with SM poisoning.


2001 ◽  
Vol 85 (02) ◽  
pp. 245-249 ◽  
Author(s):  
John Horan ◽  
Charles Francis ◽  
Ann Falsey ◽  
John Kolassa ◽  
Brian Smith ◽  
...  

SummaryMortality rates attributable to cerebrovascular and ischemic heart disease increase among older adults during the winter. Prothrombotic changes in the hemostatic system related to seasonal factors, such as ambient temperature changes, and winter acute respiratory tract infections, may contribute to this excess seasonal mortality. A prospective nested case-control study was conducted to assess the impact of winter acute respiratory tract infections on fibrinogen, factor VII, factor VIIa, D-dimer, prothrombin fragment 1.2, PAI-1, soluble P-selectin and C-reactive protein (CRP) in older adults. The change in laboratory parameters from baseline (fall) to the time of infection in both middle-aged and elderly individuals was compared with matched non-infected controls. In older adult participants with winter acute respiratory tract infections, significant increases occurred in fibrinogen and C-reactive protein, but not in any other markers. The mean fibrinogen increased 1.52 g/L (38%) and the mean CRP increased 37 mg/L (370%) over baseline (both p < 0.001). In a multivariate analysis, both infection and season were associated with the increase in fibrinogen, but only infection was associated with the CRP increase. Old age magnified the increase in CRP but not in fibrinogen. Winter acute respiratory tract infections induce an exaggerated inflammatory response in older adults. The associated increase in fibrinogen, an independent risk factor for ischemic heart disease, may be partly responsible for the excess winter vascular mortality.


1993 ◽  
Vol 39 (2) ◽  
pp. 293-297 ◽  
Author(s):  
T Nakayama ◽  
S Sonoda ◽  
T Urano ◽  
T Yamada ◽  
M Okada

Abstract We examined serum amyloid protein A (SAA) and C-reactive protein (CRP) as inflammatory markers of viral and bacterial infections. Both acute-phase reactants increased in the acute stage and thereafter decreased in the convalescent stage. In viral infections, the mean serum concentrations of SAA during the acute stage were 141 mg/L in infections with adenovirus, 77 mg/L with measles virus, 63 mg/L with influenza virus, 55 mg/L with parainfluenza virus, 31 mg/L with respiratory syncytial virus, and 31 mg/L in aseptic meningitis. The mean serum concentration of CRP was 19 mg/L for adenovirus infection and &lt; 7 mg/L in all other viral infections. The SAA concentrations were 5- to 11-fold greater than the CRP concentrations. Both the SAA and the CRP concentrations were higher in bacterial infections than in viral infections. Changes in the concentrations of serum SAA paralleled those in serum CRP in bacterial infection; during the course of viral infection, however, serum SAA tended to disappear more quickly than CRP did. SAA appears to be a clinically useful marker of inflammation in acute viral infections, with or without significant changes in the CRP concentration.


2011 ◽  
Vol 51 (1) ◽  
pp. 7
Author(s):  
Frecilia Regina ◽  
Kristellina Tirtamulia ◽  
Sarah Maria Warouw

Background Childhood obesity is a widespread and growing problem associated with health problems such as metabolic syndrome, diabetes mellitus and cardiovascular disease. A low􀁗grade chronic inflammatory state, reflected by decreased adiponectin and increased highly sensitive C􀁗reactive  protein (hsCRP) levels, may play a role in metabolic syndrome associated with obesity.Objective To assess and compare adiponectin and hsCRP levels in obese and nonnal weight children.Methods We conducted a cross-sectional, case􀁗controlled study in Manado from May to July 2010. Subjects were selected from obese, but otherwise healthy children aged 9-15 years. Control subjects were schoolmates 'With normal body mass index (BMI). We perfonned physical examinations, measured blood pressure, weight and height, and calculated BMI for all subjects. After an overnight fast, all subjects were tested for fasting blood glucose, adiponectin and hsCRP levels.Results The mean adiponectin level in the obese group was 3.6 μg/mL (SD 1.43), lower than that of the normoweight group, 4.8 μg/mL (SD 1.67) (P<0.0001). The mean hsCRP level in the obese group was 3.3 mg/L (SD 3.62) while that of the normoweight group was 0.8 mg/L (SD 1.39) (P<0.0001). There was no inverse correlation between adiponectin and hsCRP levels in obese group (r= 0.048; P= 0.362).Conclusions Lower adiponectin and higher hsCRP levels in the obese group is consistent 'With a low-grade chronic inflammatory state. Other factors that influence adiponecrin and hsCRP production or inflammatory pathways of other adipokines need further evaluation. Early intervention is needed to reduce body weight in obese children.


2020 ◽  
Vol 35 (Supplement_3) ◽  
Author(s):  
Changhyun Lee ◽  
Keun Hyung Park ◽  
Young Su Joo ◽  
Ki Heon Nam ◽  
Tae-Ik Chang ◽  
...  

Abstract Background and Aims High-sensitivity C-reactive protein (hs-CRP) level is lower in East Asians than in the Western people and its clinical significance needs to be further explored. We aimed to investigate whether hs-CRP could function as a biomarker in Korean CKD patients. Method We studied the association of hs-CRP with adverse clinical outcomes in 2,018 patients from the KoreaN cohort study for Outcome in patients With Chronic Kidney Disease (KNOW-CKD). The primary outcome was a composite of extended major cardiovascular events (MACE) or all-cause mortality. Extended MACE (eMACE) included non-fatal cardiovascular events, symptomatic arrhythmia, and cardiac death. The secondary endpoints were separate outcome of eMACE, all-cause death, and adverse kidney outcome. We also evaluated predictive ability of hs-CRP for the primary outcome. Results The median hs-CRP level was 0.60 mg/L (IQR 0.2-1.7), and the mean eGFR was 53.6 ml/min/1.73 m2. During the mean follow-up of 3.9 years, there were 125 (6.2%) eMACEs and 80 (4.0%) deaths. The primary composite outcome occurred more frequently in patients with higher hs-CRP level than in those with lower hs-CRP level. In multivariable Cox analysis after adjustment of confounders, there was a graded association of hs-CRP with the primary outcome. The HRs (95% CI) for hs-CRP of 1.0 to 2.99, and ≥ 3.0 mg/L were 1.37 (0.89-2.12) and 2.20 (1.36-3.56), compared with hs-CRP of &lt;1.0 mg/L. In analyses of secondary outcomes, this association was consistent for eMACE and all-cause death; however, hs-CRP was not associated with adverse kidney outcomes. Finally, prediction models failed to show improvement of predictive performance of hs-CRP compared to conventional factors. Conclusion In Korean CKD patients, serum hs-CRP level was low and significantly associated with higher risk of eMACEs and mortality. However, a low serum hs-CRP level was not predictive of adverse kidney outcome, and the predictive performance of hs-CRP was not strong.


Author(s):  
Hanaa H. Ahmed ◽  
Wafaa Gh Shousha ◽  
Hatem A El Mezayen ◽  
Ibrahim A Emara ◽  
Marwa E Hassan

  Objective: This work was delineated to assess procalcitonin (PCT) and C-reactive protein (CRP) as prognostic markers for cardiovascular complication in type 2 diabetic patients.Methods: Forty diabetic patients without cardiovascular disease (CVD), 40 diabetic patients with CVD, and 20 healthy control counterparts were participated in this study. Serum PCT and CRP levels were assayed and correlated with metabolic parameters. Receiver operating characteristic (ROC) curve analysis was done for each biochemical marker.Results: The mean level of PCT was 707.17±99.19 ng/l in diabetic patients versus 881.30±123.56 ng/l for the cardio-diabetic patients (p<0.0001). The mean value of CRP was 34.43±17.27 mg/l in diabetic patients versus 50.32±20.19 mg/l for the cardio-diabetic patients (p=0.0003). PCT levels were significantly amplified in the cardio-diabetic patients with increasing CRP, triglycerides (TG), fasting blood glucose (FBG), and cholesterol (p=0.004, 0.0005, 0.002, and 0.01, respectively). CRP levels were significantly enhanced in the cardio-diabetic patients with increasing TG, FBG, cholesterol, and microalbumin (p=0.002, 0.047, 0.003, and 0.001 respectively). ROC curve analysis for PCT and CRP revealed that the area under curve (AUC) was 0.878 and 0.727, respectively. These findings indicate the good validity of the above biomarkers especially PCT as a prognostic marker for cardiovascular complication in type 2 diabetic patients.Conclusion: This study evidences the usefulness of measuring serum levels of PCT and CRP in diagnosis of cardiovascular complication in type 2 diabetic patients.


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