Search results for "BIOMARKER"
showing 10 items of 3035 documents
Pathogenesis of polymyalgia rheumatica
2018
Polymyalgia rheumatica (PMR) is a chronic, inflammatory disorder of unknown cause, almost exclusively occurring in people aged over 50 and often associated with giant cell arteritis. The evidence that PMR occurs almost exclusively in individuals aged over 50 may indicate that age-related immune alterations in genetically predisposed subjects contribute to development of the disease. Several infectious agents have been investigated as possible triggers of PMR even though the results are inconclusive. Activation of the innate and adaptive immune systems has been proved in PMR patients as demonstrated by the activation of dendritic cells and monocytes/macrophages and the altered balance betwee…
Association of low 25-hydroxyvitamin D concentrations with elevated parathyroid hormone concentrations and low cortical bone density in early puberta…
2003
Background: Very few studies have evaluated both parathyroid hormone (PTH) and 25-hydroxyvitamin D [25(OH)D] and their effects on bone mass in children. Objective: We studied the associations of serum 25(OH)D and intact PTH (iPTH) with bone mineral content (BMC) and bone mineral density (BMD) at different bone sites and the relation between serum 25(OH)D and iPTH in early pubertal and prepubertal Finnish girls. Design: The subjects were 10‐12-y-old girls (n = 193) at Tanner stage 1 or 2, who reported a mean (± SD) dietary calcium intake of 733 ± 288 mg/d. 25(OH)D, iPTH, tartrate-resistant acid phosphatase 5b (TRAP 5b), urinary calcium excretion, BMC, areal BMD, and volumetric BMD were asses…
Dissecting the clinical heterogeneity of adult-onset Still's disease, results from a multi-dimensional characterisation and stratification
2021
Abstract Objectives To stratify adult-onset Still’s disease (AOSD) patients in distinct clinical subsets to be differently managed, by using a multi-dimensional characterization. Methods AOSD patients were evaluated by using a hierarchical unsupervised cluster analysis comprising age, laboratory markers systemic score and outcomes. The squared Euclidean distances between each pair of patients were calculated and put into a distance matrix, which served as the input clustering algorithm. Derived clusters were descriptively analysed for any possible difference. Results Four AOSD patients clusters were identified. Disease onset in cluster 1 was characterized by fever (100%), skin rash (92%) an…
Inhibition of xanthine oxidase to prevent statin-induced myalgia and rhabdomiolysis
2015
Although statins remain the cornerstone of lipid-lowering therapy for reducing the burden of atherosclerotic vascular disease, their administration has been associated with muscle-related adverse effects, including myalgia and rhabdomyolysis. Such adverse events are probably due to reduced antioxidant defenses associated with fewer intermediate metabolites in the cholesterol synthesis pathway. We hypothesize that the concomitant inhibition of xanthine oxidase via coadministration of allopurinol with statins could diminish reactive oxygen species (ROS)-related muscle damage, which would have in turn have positive effects on both the incidence of muscle-related adverse events and cardiovascul…
Analysis of vitamin D levels in patients with and without statin-associated myalgia — A systematic review and meta-analysis of 7 studies with 2420 pa…
2014
article i nfo Introduction: VitaminD (vitD)deficiencymay beassociatedwith anincreased riskof statin-related symptomatic myalgia in statin-treated patients. The aim of this meta-analysis was to substantiate the role of serum vitamin D levels in statin-associated myalgia. Methods: The search included PUBMED, Cochrane Library, Scopus, and EMBASE from January 1, 1987 to April 1, 2014 to identify studies that investigated the impact of vit D levels in statin-treated subjects with and without myalgia. Two independent reviewers extracted data on study characteristics, methods and outcomes. Quantita- tive data synthesis was performed using a fixed-effect model. Results: The electronic search yielde…
Dlaczego nie immunoterapia? Druga linia paliatywnego leczenia przerzutowego raka gruczołowego płuca
2020
W Polsce leczeniem z wyboru drugiej linii po niepowodzeniu chemioterapii przerzutowego gruczołowego raka płuca bez mutacji aktywującej EGFR, translokacji ALK i ROS1 jest immunoterapia atezolizumabem lub niwolumabem. Niestety, nie wszyscy chorzy odnoszą korzyść z takiego leczenia. Alternatywę dla immunoterapii stanowi leczenie kojarzące chemioterapię z lekiem antyangiogennym, docetaksel z nintedanibem. W podjęciu decyzji terapeutycznej pomocna może być analiza biomarkerów odpowiedzi na immunoterapię. W niniejszej pracy przedstawiono przypadek chorego z przerzutowym gruczołowym rakiem płuca, z szybką progresją po chemioterapii opartej na cisplatynie, który odniósł znaczącą korzyść z leczenia …
Electroencephalography as a Non-Invasive Biomarker of Alzheimer’s Disease: A Forgotten Candidate to Substitute CSF Molecules?
2021
Biomarkers for disease diagnosis and prognosis are crucial in clinical practice. They should be objective and quantifiable and respond to specific therapeutic interventions. Optimal biomarkers should reflect the underlying process (pathological or not), be reproducible, widely available, and allow measurements repeatedly over time. Ideally, biomarkers should also be non-invasive and cost-effective. This review aims to focus on the usefulness and limitations of electroencephalography (EEG) in the search for Alzheimer’s disease (AD) biomarkers. The main aim of this article is to review the evolution of the most used biomarkers in AD and the need for new peripheral and, ideally, non-invasive b…
Impacto del tratamiento periodontal en el ratio rnakl/opg
2015
La reabsorción ósea es uno de los procesos con mayor transcendencia en la periodontitis. El descubrimiento del eje RANKL/RANL/0PG (receptor activador de la osteoclastogénesis) supuso un avance en la comprensión del remodelado óseos fisiológico y patológico. Los recientes estudios realizados tanto a nivel histológico como a nivel del fluido crevicular, han comprobado el aumento del ratio RANKL/OPG en los pacientes con periodontitis.Nuevos conocimientos en ésta línea aportarán información sobre la patogenia y por tanto podrían ser utilizados en el diagnóstico y tratamiento periodontal. Objetivo: Determinar el efecto del tratamiento periodontal básico (raspado y alisado radicular, junto con in…
Liquid biopsy in the assessment of microRNAs in oral squamous cell carcinoma: a systematic review
2022
The identification of non-invasive biomarkers from biological fluids collected by liquid biopsy provides new horizons for individualized therapeutic strategies and improves clinical decision-making in OSCC patients. Circulating microRNAs have emerged as biomarkers that may reflect not only the existence of cancer, but also the dynamic, malignant potential, and drug resistance of tumors. The aim of the systematic review is to evaluate and summarize the results of the published studies regarding the use of microRNAs as biomarkers for OSCC.A literature search was conducted on PubMed, Scopus, Web of Science, and Cochrane databases till November 2020. A total of 34 studies met the inclusion crit…
Oxidative stress and antioxidant levels in patients with anorexia nervosa: A systematic review and exploratory meta-analysis.
2015
Objective To systematically review and meta-analyze oxidative stress and antioxidant markers in anorexia nervosa (AN). Methods Electronic PubMed search from database inception until 12/31/2013. Out of 1062 hits, 29 studies comparing oxidative stress/antioxidant markers between patients with AN and healthy controls (HCs) with a total of 1,729 participants (AN-=-895, HCs-=-834) were eligible. Data about oxidative stress and antioxidant markers, independent of their source, were extracted. We calculated random effects standardized mean differences (SMDs) as effect size measures for outcomes reported in ≥5 studies; others were summarized descriptively. Results Compared to HCs, AN patients showe…