Search results for " Biologia molecolare"
showing 10 items of 267 documents
Biomarkers for diagnosing sepsis in the emergency department: A consensus document by SIBioC-Medicina di Laboratorio and the Academy of Emergency Med…
2018
This article is drafted as a consensus document involving eight members of the Italian Society of Clinical Biochemistry and Laboratory Medicine (SIBioC) and eight members of the Academy of Emergency Medicine and Care (AcEMC), to whom a questionnaire was submitted for obtaining opinions on some recommendations about the use of biomarkers for diagnosing sepsis and managing antibiotic therapy in the emergency department. These recommendations were drafted following the National Guidelines Program (PNLG). According to the cumulative consent, three "A" recommendations (strongly recommended indication) emerged, which include biomarker availability (always available on prescription), clinical use …
Therapeutic monitoring of autoantibodies Tumor Necrosis Factor α inhibitor drugs: Efficacy and benefit for patients with autoimmune diseases
2018
Tumor necrosis factor alpha (TNFα) is a proinflammatory cytokine involved in the pathogenesis of chronic inflammatory disease, such as rheumatoid arthritis, psoriatic arthritis, ankylosing spondylitis, Chron's disease and ulcerative colitis. TNFα inhibitors (anti-TNFα) are monoclonal antibodies drugs directed against TNFα (i.e. adalimumab, infliximab, etarnecept, golimumab and certolizumab). Their effect consists in reducing the inflammatory response of autoimmune diseases. Several randomized controlled trials and observational studies evaluated the therapeutic efficacy of these drugs and reported a clear benefit for patients affected by chronic inflammatory disease treated with anti-TNFα, …
Esami di laboratorio in Pronto Soccorso: una proposta di consenso SIBioCMedicina di Laboratorio e Academy of Emergency Medicine and Care
2017
Laboratory diagnostics in the emergency setting encompasses the identification of appropriate testing according to specific acute conditions. Since the pathway of ordering tests in the Italian Emergency Departments (EDs) is rather heterogeneous, SIBioC-Medicina di Laboratorio and the Academy of Emergency Medicine and Care designed a survey aimed to generate consensus pertaining to appropriate laboratory tests in most frequent acute conditions. A questionnaire including a panel of laboratory tests was administered to 8 representative members of each of the two societies, who were asked to provide a score between 1 and 3 for the various tests, where a score of 1 entailed "highly recommended",…
Identificazionee caratterizzazione di mutazioni in regioni regolatorie del gene malattia della fibrosi cistica
2013
Mutation epidemiology is crucial for cystic fibrosis (CF) diagnosis and counselling. ~6%-7% of alleles from CF patients do not bear mutations in the coding regions of the Cystic Fibrosis Transmembrane Regulator (CFTR) disease gene. In these patients, mutations may be present in non-coding, regulatory regions of the gene as i) intronic regions (particularly in high conserved sequences), ii) the promoter region or iii) the area at the 3’ of the gene, which is the target of microRNA regulation. We studied these regions by gene sequencing in a group of CF patients with one or both unidentified mutations after the analysis of CFTR coding regions, and in a group of CF patients with a different cl…
Acute troponin i increase in absence of obstructive coronary disease: A case of takotsubo syndrome
2017
A 66-year-old woman was admitted to the Emergency Department of Policlinico P. Giaccone, in Palermo, for non-radiating chest pain that occurred after an emotional stress. Her medical history included a positive family history for cardiovascular disease, arterial hypertension, gastro-esophageal reflux disease, and anxiety-depressive syndrome. Upon admission, the electrocardiogram showed diffuse ST-T abnormalities with an elevation of the ST segment; Troponin I was 3790 ng/L, creatine phosphokinase was 374 U/L, which became normal within 48 hours. No evidence of significant coronary artery stenosis was detected on the angiography. The echocardiogram showed apical akinesia and hyperkinesia of …
Results of a survey produced by the Italian Society of Clinical Biochemestry (SIBioC) and the Italian Association of Hospital Pneumologists (AIPO) co…
2018
The aim of this paper is to present the preliminary results of a joint project by SIBioC-AIPO working group on “Body cavities fluids”. The main purpose of the working group is to achieve a harmonized and shared diagnostic pathway related to pleural fluid (PF) analysis. The multistep project begins with a state of the art analysis. A survey, sent to both laboratory medicine personnel and pneumologists, was conducted between October and December 2016. The questionnaire (21 questions) was made available through the web-based SurveyMonkey platform. Overall, 408 replies were collected, 40.4% from laboratory medicine specialists, 3.2% from laboratory technicians, 49.3% from pneumologists and 7.1%…
Metabolic memory in diabetic foot syndrome (dfs): epigenetic changes of the expression of micro-rnas and single nucleotide polymorphisms (snps) frequ…
2023
Background: Diabetic foot is a significant cause of morbidity in diabetic patients, with a rate that is approximatelytwice that of patients without foot ulcers. “Metabolic memory” represents the epigenetic changes induced by chronic hyperglycaemia, despite the correction of the glucose levels themselves. These epigenetic modifications appear to perpetuate the damage caused by persistently elevated glucose levels even in their absence, acting at various levels, mostly affecting the molecular processes of diabetic ulcer healing. Methods: The aim of our cross-sectional study was to analyse a cohort of patients with diabetes with and without lower limb ulcers. We examined the effects of epigene…
GENE STRUCTURE, DIFFERENTIAL EXPRESSION AND PHYLOGENETIC ANALYSIS OF THE METALLOTHIONEIN GENE FAMILY OF THE SEA URCHIN PARACENTROTUS LIVIDUS
2017
Metallothioneins (MT) are small and cysteine-rich proteins that bind metal ions such as zinc, copper, cadmium, and nickel1. Several functions were proposed for these peptides, ranging from toxic metal protection to physiological metal homeostasis, free radical scavenging, oxidative stress protection, antiapoptotic defense, control of the redox status of the cell and also roles during development. Previously, we reported the identification of five different MT homologues (PlMT4-8) from the Mediterranean sea urchin species P. lividus2. In order to shed some light on MT gene structure and evolution, we cloned seven P. lividus MT genes, comparing them to Echinodermata and Chordata genes3. Moreo…
Metallothionein Gene Family in the Sea Urchin Paracentrotus lividus: Gene Structure, Differential Expression and Phylogenetic Analysis
2017
Metallothioneins (MT) are small and cysteine-rich proteins that bind metal ions such as zinc, copper, cadmium, and nickel. In order to shed some light on MT gene structure and evolution, we cloned seven Paracentrotus lividus MT genes, comparing them to Echinodermata and Chordata genes. Moreover, we performed a phylogenetic analysis of 32 MTs from different classes of echinoderms and 13 MTs from the most ancient chordates, highlighting the relationships between them. Since MTs have multiple roles in the cells, we performed RT-qPCR and in situ hybridization experiments to understand better MT functions in sea urchin embryos. Results showed that the expression of MTs is regulated throughout de…
Maintenance of a Protein Structure in the Dynamic Evolution of TIMPs over 600 Million Years
2016
Deciphering the events leading to protein evolution represents a challenge, especially for protein families showing complex evolutionary history. Among them, TIMPs represent an ancient eukaryotic protein family widely distributed in the animal kingdom. They are known to control the turnover of the extracellular matrix and are considered to arise early during metazoan evolution, arguably tuning essential features of tissue and epithelial organization. To probe the structure and molecular evolution of TIMPs within metazoans, we report the mining and structural characterization of a large data set of TIMPs over approximately 600 Myr. The TIMPs repertoire was explored starting from the Cnidaria…