circulating biomarkers
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2022 ◽  
Vol 12 (1) ◽  
Author(s):  
F. Gianfagna ◽  
G. Veronesi ◽  
A. Baj ◽  
D. Dalla Gasperina ◽  
S. Siclari ◽  
...  

AbstractThe immune response after SARS-CoV-2 vaccine administration appears to be characterized by high inter-individual variation, even in SARS-CoV-2 positive subjects, who could have experienced different post-infection, unresolved conditions. We monitored anti-SARS-CoV-2 IgG levels and kinetics along with circulating biomarkers in a cohort of 175 healthcare workers during early immunization with COVID-19 mRNA-LNP BNT162b2 vaccine, to identify the associated factors. Subjects with a previous SARS-CoV-2 infection were characterized by higher BMI and CRP levels and lower neutrophil count with respect to naïve subjects. Baseline IgG levels resulted associated with CRP independently on BMI and inflammatory diseases. Among 137 subjects undergoing vaccination and monitored after the first and the second dose, three kinetic patterns were identified. The pattern showing a rapid growth was characterized by higher IgG levels at baseline and higher CRP and MCHC levels than negative subjects. Subjects previously exposed to SARS-CoV-2 showed higher levels of CRP, suggesting persistence of unresolved inflammation. These levels are the main determinant of IgG levels at baseline and characterized subjects belonging to the best performing, post-vaccine antibody kinetic pattern.


2022 ◽  
Vol 20 (8) ◽  
pp. 3098
Author(s):  
V. A. Metelskaya ◽  
M. V. Zhatkina ◽  
N. E. Gavrilova ◽  
E. B. Yarovaya ◽  
N. L. Bogdanova ◽  
...  

Aim. To identify and characterize the associations of the presence and severity of atherosclerosis of various localization with the blood level of biochemical parameters, as well as to assess the potential of their use as markers of metabolic disorders with increased atherogenic potential.Material and methods. The study included 216 patients (men, 53%) aged 24-87 years (mean age, 61,5±10,73 years). All patients underwent coronary angiography, carotid (CA) and femoral arterial (FA) duplex ultrasound to assess the presence and severity of atherosclerosis. In blood serum/plasma, biochemical parameters were analyzed using standard methods.Results. Based on the analysis of circulating biomarker profile, diagnostic complexes have been established that allow assessing atherosclerosis of different localization. According to the data obtained, the determinants of coronary and CA atherosclerosis are endothelial dysfunction (concentration of nitric oxide metabolites <36,0 μmol/L) and an increased level of creatinine (≥73,0 μmol/L). The specific markers associated with severe atherosclerosis of coronary and FAs (but not CA) were low high-density lipoprotein cholesterol (≤1,0/1,2 μmol/L for male/ female, respectively) and an increased C-reactive protein level (≥1,0 mg/l). Severe peripheral atherosclerosis (CA and FA involvement) was associated with hyperglycemia (glucose ≥6,1 μmol/L), while severe FA atherosclerosis — with hyperinsulinemia (insulin ≥14,0 μU/ml).Conclusion. The analysis of associations of circulating biochemical parameters with atherosclerosis localization and severity revealed a number of metabolic markers associated with the increased atherogenic potential. It is possible to distinguish both universal parameters that are associated with atherosclerosis, regardless of its localization and/or severity, and specific biomarkers that characterize either the localization or the severity of atherosclerosis, or both.


2022 ◽  
pp. 415-441
Author(s):  
Siranjeevi Nagaraj ◽  
Madhu Ramesh ◽  
Thimmaiah Govindaraju

Biomedicines ◽  
2021 ◽  
Vol 10 (1) ◽  
pp. 90
Author(s):  
Alessandra Cinque ◽  
Anna Capasso ◽  
Riccardo Vago ◽  
Michael W Lee ◽  
Matteo Floris ◽  
...  

Renal cell carcinoma (RCC) is an increasingly common malignancy that can progress to metastatic renal cell carcinoma (mRCC) in approximately one-third of RCC patients. The 5-year survival rate for mRCC is abysmally low, and, at the present time, there are sparingly few if any effective treatments. Current surgical and pharmacological treatments can have a long-lasting impact on renal function, as well. Thus, there is a compelling unmet need to discover novel biomarkers and surveillance methods to improve patient outcomes with more targeted therapies earlier in the course of the disease. Circulating biomarkers, such as circulating tumor DNA, noncoding RNA, proteins, extracellular vesicles, or cancer cells themselves potentially represent a minimally invasive tool to fill this gap and accelerate both diagnosis and treatment. Here, we discuss the clinical relevance of different circulating biomarkers in metastatic renal cell carcinoma by clarifying their potential role as novel biomarkers of response or resistance to treatments but also by guiding clinicians in novel therapeutic approaches.


2021 ◽  
Author(s):  
Gaspar Bogdan Severus ◽  
Ionescu Ruxandra Florentina ◽  
Enache Robert Mihai ◽  
Dobrică Elena Codruța ◽  
Crețoiu Sanda Maria ◽  
...  

Extracellular vesicles (EVs) represent cell-specific carriers of bioactive cargos that can be of importance in either physiological or pathological processes. Frequently, EVs are seen as intercellular communication vehicles, but it has become more and more evident that their usefulness can vary from circulating biomarkers for an early disease diagnosis to future therapeutic carriers for slowing down the evolution of different afflictions and their ability to restore damaged tissue/organs. Here, we summarize the latest progress of EVs classification, biogenesis, and characteristics. We also briefly discuss their therapeutic potential, with emphasis on their potential application in regenerative medicine.


2021 ◽  
Vol 11 (1) ◽  
pp. 79
Author(s):  
Ewa Miądlikowska ◽  
Patrycja Rzepka-Wrona ◽  
Joanna Miłkowska-Dymanowska ◽  
Adam Jerzy Białas ◽  
Wojciech Jerzy Piotrowski

Interstitial pneumonia with autoimmune features (IPAF) belongs to a group of diseases called interstitial lung diseases (ILDs), which are disorders of a varied prognosis and course. Finding sufficiently specific and sensitive biomarkers would enable the progression to be predicted, the natural history to be monitored and patients to be stratified according to their treatment. To assess the significance of pulmonary fibrosis biomarkers studied thus far, we searched the PubMed, Medline and Cochrane Library databases for papers published between January 2015 and June 2021. We focused on circulating biomarkers. A primary review of the databases identified 38 articles of potential interest. Overall, seven articles fulfilled the inclusion criteria. This review aims to assess the diagnostic and prognostic value of molecules such as KL-6, SP-A, SP-D, circulating fibrocytes, CCL2, CXCL13, CXCL9, CXCL10 and CXCL11. All of these biomarkers have previously been studied in idiopathic pulmonary fibrosis (IPF) and connective tissue disease-associated interstitial lung disease (CTD-ILD). IPAF is a disorder of a heterogeneous nature. It explains the lack of coherent observations in terms of correlations with functional parameters. There is still no meta-analysis of pulmonary fibrosis biomarkers in IPAF. This is mainly due to the heterogeneity of the methodology and groups analysed in the research. More research in this area is needed.


2021 ◽  
Vol 22 (24) ◽  
pp. 13650
Author(s):  
Carolina Maria Sassu ◽  
Innocenza Palaia ◽  
Serena Maria Boccia ◽  
Giuseppe Caruso ◽  
Giorgia Perniola ◽  
...  

Ovarian cancer (OC) is the second most common cause of death in women with gynecological cancer. Considering the poor prognosis, particularly in the case of platinum-resistant (PtR) disease, a huge effort was made to define new biomarkers able to help physicians in approaching and treating these challenging patients. Currently, most data can be obtained from tumor biopsy samples, but this is not always available and implies a surgical procedure. On the other hand, circulating biomarkers are detected with non-invasive methods, although this might require expensive techniques. Given the fervent hope in their value, here we focused on the most studied circulating biomarkers that could play a role in PtR OC.


2021 ◽  
Author(s):  
Anders Heiervang Tennøe ◽  
Klaus Murbræch ◽  
Henriette Didriksen ◽  
Thor Ueland ◽  
Vyacheslav Palchevskiy ◽  
...  

Abstract Background: Primary cardiac involvement is one of the leading causes of mortality in systemic sclerosis (SSc), but little is known regarding circulating biomarkers for cardiac SSc. Here, we aimed to investigate potential associations between cardiac SSc and candidate serum markers.Methods: Serum samples from patients of the Oslo University SSc cohort and 100 healthy controls were screened against two custom-made candidate marker panels containing molecules deemed relevant for cardiopulmonary and/or fibrotic diseases. Left (LV) and right ventricular (RV) dysfunction was assessed by protocol echocardiography, performed within three years from serum sampling. Patients suspected of pulmonary hypertension underwent right heart catheterization. Vital status at study end was available for all patients. Descriptive analyses, logistic and Cox regressions were conducted to assess associations between cardiac SSc and candidate serum markers. Results: The 371 patients presented an average age of 57.2 (± 13.9) years. Female sex (84%) and limited cutaneous SSc (73%) were predominant. Association between LV diastolic dysfunction and tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) (OR 0.41, 95%CI 0.21-0.78, p=0.007) was identified. LV systolic dysfunction defined by global longitudinal strain was associated with angiopoietin 2 (ANGPT2) (OR 3.42, 95%CI 1.52-7.71, p=0.003) and osteopontin (OPN) (OR 1.95, 95%CI 1.08-3.52, p=0.026). RV systolic dysfunction, measured by tricuspid annular plane systolic excursion, was associated to markers of LV dysfunction (ANGPT2, OPN, and TRAIL) (OR 1.67, 95%CI 1.11-2.50, p=0.014, OR 1.86, 95%CI 1.25-2.77, p=0.002, OR 0.32, 95%CI 0.15-0.66, p=0.002, respectively) and endostatin (OR 1.86, 95%CI 1.22-2.84, p=0.004).Conclusion: ANGPT2, OPN and TRAIL seem to be circulating biomarkers associated with both LV and RV dysfunction in SSc.


PLoS ONE ◽  
2021 ◽  
Vol 16 (12) ◽  
pp. e0261228
Author(s):  
Ngo Tat Trung ◽  
Tran Thi Lien ◽  
Vu Viet Sang ◽  
Nghiem Xuan Hoan ◽  
Nguyen Dang Manh ◽  
...  

Background Early diagnosis, precise antimicrobial treatment and subsequent patient stratification can improve sepsis outcomes. Circulating biomarkers such as plasma microRNAs (miRNAs) have proven to be surrogates for diagnosis, severity and case management of infections. The expression of four selected miRNAs (miR-146-3p, miR-147b, miR-155 and miR-223) was validated for their prognostic and diagnostic potential in a clinically defined cohort of patients with sepsis and septic shock. Methods The expression of plasma miRNAs was quantified by quantitative PCR (qPCR) in patients with bacterial sepsis (n = 78), in patients with septic shock (n = 52) and in patients with dengue haemorrhagic fever (DHF; n = 69) and in healthy controls (n = 82). Results The expression of studied miRNA was significantly increased in patients with bacterial sepsis and septic shock. The plasma miR-147b was able to differentiate bacterial sepsis from non-sepsis and septic shock (AUC = 0.77 and 0.8, respectively, p≤ 0.05), while the combination of plasma miR-147b and procalcitonin (PCT) predicted septic shock (AUC = 0.86, p≤ 0.05). Conclusions The plasma miR-147b may be an useful biomarker independently or in combination with PCT to support clinical diagnosis of sepsis and equally prognosis of patients with septic shock.


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