Local detection of microvessels in IDH-wildtype glioblastoma using relative cerebral blood volume: an imaging marker useful for astrocytoma grade 4 classification.

Background: The microvessels area (MVA), derived from microvascular proliferation, is a biomarker useful for high-grade glioma classification. Nevertheless, its measurement is costly, labor-intense, and invasive. Finding radiologic correlations with MVA could provide a complementary non-invasive approach without an extra cost and labor intensity and from the first stage.

Platelet rich plasma and plasma rich in growth factors for split-thickness skin graft donor site treatment in the burn patient setting: A randomized clinical trial.

Introduction: Management of donor site morbidity in the setting of split thickness skin graft (STSG) is of crucial importance with no superior wound dressing described to date and the growing need of decreasing epithelializing time. The purpose of the study was to compare the standard of care using a hydrocolloid dressing to platelet rich plasma (PRP) and plasma rich in growth factors (PRGF) in order to determine its therapeutic potential in this setting.

Methods: A randomized clinical trial was conducted in which each patient served as its own control.

Diagnostic value of serum miR-144-3p for the detection of acute cellular rejection in heart transplant patients.

Background: The development of noninvasive approaches for the early diagnosis of acute cellular rejection (ACR), an important complication of cardiac transplantation, is of great importance in clinical practice. We conducted a nontargeted transcriptomic study focused on identifying serum miRNAs to evaluate their diagnostic accuracy for detecting rejection episodes.

Methods: We included consecutive serum samples from transplant recipients undergoing routine endomyocardial biopsies.

Prediagnostic alterations in circulating bile acid profiles in the development of hepatocellular carcinoma.

Bile acids (BAs) play different roles in cancer development. Some are carcinogenic and BA signaling is also involved in various metabolic, inflammatory and immune-related processes. The liver is the primary site of BA synthesis.

In Vitro Pharmacokinetic/Pharmacodynamic Modelling and Simulation of Amphotericin B against .

The aims of this study were to characterize the antifungal activity of amphotericin B against in a static in vitro system and to evaluate different dosing schedules and MIC scenarios by means of semi-mechanistic pharmacokinetic/pharmacodynamic (PK/PD) modelling and simulation. A two-compartment model consisting of a drug-susceptible and a drug-resistant subpopulation successfully characterized the time-kill data and a modified E sigmoidal model best described the effect of the drug. The model incorporated growth rate constants for both subpopulations, a death rate constant and a transfer constant between both compartments.

Factors that influence the quality of metabolomics data in in vitro cell toxicity studies: a systematic survey.

REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) is a global strategy and regulation policy of the EU that aims to improve the protection of human health and the environment through the better and earlier identification of the intrinsic properties of chemical substances. It entered into force on 1st June 2007 (EC 1907/2006). REACH and EU policies plead for the use of robust high-throughput "omic" techniques for the in vitro investigation of the toxicity of chemicals that can provide an estimation of their hazards as well as information regarding the underlying mechanisms of toxicity.

Extracting consistent biological information from functional results of metabolomic pathway analysis using the Mantel's test.

Extraction of meaningful biological information from the vast array of data that metabolomics analyses generate is a major challenge in the field. A variety of computational and visual tools that help to identify changes in metabolic pathways have been proposed including functional analysis and pathway analysis. Meta-analysis of metabolomic data has emerged as a powerful source of information.

A Reductive Metabolic Switch Protects Infants with Transposition of Great Arteries Undergoing Atrial Septostomy against Oxidative Stress.

Transposition of the great arteries (TGA) is one of the most common cyanotic congenital heart diseases requiring neonatal surgical intervention. Parallel circulations that result in impaired cerebral oxygen delivery already in utero may lead to brain damage and long-term neurodevelopmental delay. Balloon atrial septostomy (BAS) is often employed to mix deoxygenated and oxygenated blood at the atrial level.

Alterations in the Nucleocytoplasmic Transport in Heart Transplant Rejection.

Background: Nucleocytoplasmic transport is a crucial process for cell function. Previous studies have observed alterations in different molecules involved in it, relating them to ventricular function. However, there are no published data evaluating possible differences in the expression of these molecules in heart transplantation (HT) recipients.

NAC and Vitamin D Improve CNS and Plasma Oxidative Stress in Neonatal HIE and Are Associated with Favorable Long-Term Outcomes.

N-acetylcysteine (NAC) and vitamin D provide effective neuroprotection in animal models of severe or inflammation-sensitized hypoxic ischemic encephalopathy (HIE). To translate these FDA-approved drugs to HIE neonates, we conducted an early phase, open-label trial of 10 days of NAC (25, 40 mg/kg q12h) + 1,25(OH)D (calcitriol 0.05 mg/kg q12h, 0.

Do Levels of Lipid Peroxidation Biomarkers Reflect the Degree of Brain Injury in Newborns?

The pathogenesis and progression of hypoxic-ischemic encephalopathy (HIE), a major cause of severe neurological disability and mortality in the perinatal period, are shaped by the interplay of multiple processes, including inflammation, oxidative stress, and excitotoxicity. We conducted a longitudinal study to determine biomarkers of oxidative stress and inflammation in noninvasive urine samples of newborns with moderate/severe HIE ( = 51), employing liquid chromatography-mass spectrometry. We noted that levels of several biomarkers of oxidative stress increased over time, demonstrating the ongoing propagation of oxidative injury.

Myelodysplastic syndromes with 20q deletion: incidence, prognostic value and impact on response to azacitidine of ASXL1 chromosomal deletion and genetic mutations.

In myelodysplastic syndromes (MDS), the 20q deletion [del(20q)] may cause deletion of the ASXL1 gene. We studied 153 patients with MDS and del(20q) to assess the incidence, prognostic value and impact on response to azacitidine (AZA) of ASXL1 chromosomal alterations and genetic mutations. Additionally, in vitro assay of the response to AZA in HAP1 (HAP1 ) and HAP1 ASXL1 knockout (HAP1 ) cells was performed.

Nutraceutical Supplementation Ameliorates Visual Function, Retinal Degeneration, and Redox Status in rd10 Mice.

Background: Retinitis pigmentosa (RP) is a group of inherited retinal dystrophies characterized by progressive degeneration of photoreceptor cells. Ocular redox status is altered in RP suggesting oxidative stress could contribute to their progression. In this study, we investigated the effect of a mixture of nutraceuticals with antioxidant properties (NUT) on retinal degeneration in rd10 mice, a model of RP.

Radical genome remodelling accompanied the emergence of a novel host-restricted bacterial pathogen.

The emergence of new pathogens is a major threat to public and veterinary health. Changes in bacterial habitat such as a switch in host or disease tropism are typically accompanied by genetic diversification. Staphylococcus aureus is a multi-host bacterial species associated with human and livestock infections.

Plasma Levels of SERCA2a as a Noninvasive Biomarker of Primary Graft Dysfunction After Heart Transplantation.

Background: Noninvasive detection of primary graft dysfunction (PGD) remains a major challenge. SERCA2a plays an important role in cardiac homeostasis and its dysregulation has been associated with ventricular dysfunction and rejection. This study aimed to determine the potential utility of plasma levels of SERCA2a as a biomarker of PGD.

A surface plasmon resonance based approach for measuring response to pneumococcal vaccine.

Incidence of pneumococcal disease has increased worldwide in recent years. Response to pneumococcal vaccine is usually measured using the multiserotype enzyme-linked immunosorbent assay (ELISA) pneumococcal test. However, this approach presents several limitations.

Retinal Inflammation, Cell Death and Inherited Retinal Dystrophies.

Inherited retinal dystrophies (IRDs) are a group of retinal disorders that cause progressive and severe loss of vision because of retinal cell death, mainly photoreceptor cells. IRDs include retinitis pigmentosa (RP), the most common IRD. IRDs present a genetic and clinical heterogeneity that makes it difficult to achieve proper treatment.

Variant in as a Possible Genetic Modifier of Neonatal Epilepsy in an Infant with a De Novo Mutation.

Mutations in genes have been described in patients with epilepsy, finding a large phenotypic variability, from benign familial epilepsy to epileptic encephalopathy. To explain this variability, it was proposed the existence of dominant modifier alleles at one or more loci that contribute to determine the severity of the epilepsy phenotype. One example of modifier factor may be the gene, as proved in animal models.

Heterogeneity of pollen food allergy syndrome in seven Southern European countries: The @IT.2020 multicenter study.

Background: Pollen food allergy syndrome (PFAS) is a frequently underdiagnosed disease due to diverse triggers, clinical presentations, and test results. This is especially relevant in geographic areas with a broad spectrum of pollen sensitization, such as Southern Europe.

Objectives: To elucidate similarities and differences of PFAS in nine Southern European centers and identify associated characteristics and unique markers of PFAS.

Differential effect of vascularity between long- and short-term survivors with IDH1/2 wild-type glioblastoma.

Introduction: IDH1/2 wt glioblastoma (GB) represents the most lethal tumour of the central nervous system. Tumour vascularity is associated with overall survival (OS), and the clinical relevance of vascular markers, such as rCBV, has already been validated. Nevertheless, molecular and clinical factors may have different influences on the beneficial effect of a favourable vascular signature.

Antifungal Resistance among Less Prevalent Non- and Other Yeasts versus Established and under Development Agents: A Literature Review.

Fungal diseases and antifungal resistance continue to increase, including those caused by rare or emerging species. However, the majority of the published in vitro susceptibility data are for the most common fungal species. We reviewed the literature in order to pool reference minimal inhibitory concentration (MIC) data (Clinical and Laboratory Standards Institute-CLSI and European Committee on Antimicrobial Susceptibility-EUCAST) for rare/non-prevalent and other yeast species.

Intratumoral immunosuppression profiles in 11q-deleted neuroblastomas provide new potential therapeutic targets.

High-risk neuroblastoma (NB) patients with 11q deletion frequently undergo late but consecutive relapse cycles with fatal outcome. To date, no actionable targets to improve current multimodal treatment have been identified. We analyzed immune microenvironment and genetic profiles of high-risk NB correlating with 11q immune status.