Pruning wound protection products induce alterations in the wood mycobiome profile of Grapevines

Fungal pathogens involved in grapevine trunk diseases (GTDs) may infect grapevines throughout their lifetime, from nursery to vineyard, via open wounds in stems, canes or roots. In vineyards, pruning wound protection products (PWPPs) offer the best means to reduce the chance of infection by GTD fungi. However, PWPPs may affect non-target microorganisms that comprise the natural endophytic mycobiome residing in treated canes, disrupting microbial homeostasis and indirectly influencing grapevine health. Using DNA metabarcoding, we characterized the endophytic mycobiome of one-year-old canes of cultivars Cabernet Sauvignon and Syrah in two vineyards in Portugal and Italy and assessed the impact of established and novel PWPPs on the fungal communities of treated canes. Our results reveal a large fungal diversity (176 taxa), and we report multiple genera never detected before in grapevine wood (e.g., Symmetrospora and Akenomyces). We found differences in mycobiome beta diversity when comparing vineyards (p = 0.01) but not cultivars (p > 0.05). When examining PWPP-treated canes, we detected cultivar- and vineyard-dependent alterations in both alpha and beta diversity. In addition, numerous fungal taxa were over- or under-represented when compared to control canes. Among them, Epicoccum sp., a beneficial genus with biological control potential, was negatively affected by selected PWPPs. This study demonstrates that PWPPs induce alterations in the fungal communities of grapevines, requiring an urgent evaluation of their direct and indirect effects on plants health with consideration of factors such as climatic conditions and yearly variations, in order to better advise viticulturists and policy makers.info:eu-repo/semantics/publishedVersio

Intrathymic Notch3 and CXCR4 combinatorial interplay facilitates T-cell leukemia propagation.

Notch hyperactivation dominates T-cell acute lymphoblastic leukemia development, but the mechanisms underlying "pre-leukemic-cells" dissemination are still unclear. Here we describe how deregulated Notch3 signaling enhances CXCR4 cell-surface expression and migratory ability of CD4+CD8+ thymocytes, possibly contributing to “pre-leukemic” cell propagation, early in disease progression. In transgenic mice overexpressing the constitutively active Notch3 intracellular domain, we detect the progressive increase in circulating blood and bone marrow of CD4+CD8+-cells, characterized by high and combined surface expression of Notch3 and CXCR4. We report for the first time that transplantation of such CD4+CD8+-cells, reveals their competence in infiltrating spleen and bone marrow of immunocompromised recipient mice. We also show that CXCR4 surface expression is central to the migratory ability of CD4+CD8+-cells and that such an expression is regulated by Notch3 through -arrestin in human leukemia cells. De novo, we propose that hyperactive Notch3 signaling by boosting CXCR4-dependent migration promotes anomalous egression of CD4+CD8+-cells from the thymus in early leukemia stages. In fact, in vivo CXCR4 antagonism prevents bone marrow colonization by such CD4+CD8+ cells in young Notch3 transgenic mice. Therefore, our data suggest that combined therapies precociously counteracting intrathymic Notch3/CXCR4 crosstalk, may prevent dissemination of “pre-leukemic” CD4+CD8+-cells, by a “thymus-autonomous” mechanism

Role of CT and MRI in Cardiac Emergencies

Current strategies for the evaluation of patients with chest pain have significantly changed thanks to the implemented potentiality of CT and MRI. The possible fatal consequences and high malpractice costs of missed acute coronary syndromes lead to unnecessary hospital admissions every year. CT provides consistent diagnostic support, mainly in suspected coronary disease in patients with a low or intermediate pre-test risk. Moreover, it can gain information in the case of cardiac involvement in pulmonary vascular obstructive disease. MRI, on the other hand, has a leading role in the condition of myocardial damage irrespective of the underlying inflammatory or stress related etiology. This article discusses how radiology techniques (CT and MRI) can impact the diagnostic workflow of the most common cardiac and vascular pathologies that are responsible for non-traumatic chest pain admissions to the Emergency Department

Bioaccumulation of cadmium and its cytotoxic effect on zebrafish brain

In order to study the accumulation and cytotoxicity of cadmium (Cd) in the brain of zebrafish (Danio rerio), specimens were exposed for 16 days to 1.0 mg · L−1 of CdCl2 and the brains were analysed at 2, 7 and 16 days of treatment. The concentration of Cd in the brains was detected by atomic absorption spectrometry; tissue alterations were revealed under light and electron microscopes. Cadmium concentrations in the brain of treated fish appeared to increase exponentially over time, reaching a peak at 16 days. As regards brain histomorphology, we observed evident tissue disorganisation in treated fish compared with control specimens. This disorganisation appeared particularly at 16 days in the optic tectum, in the ventricle area where the ependymal cells appeared sparsely distributed and in the medulla oblongata. Moderate ultrastructural damage was observed in the fish at 7 days of treatment. In the brain at 16 days of treatment, we observed considerable mitochondrial swelling with a loss of cristae, and several cells showed large autophagic vacuoles. This is indicative of a defence mechanism which occurs over time and in parallel with the accumulation of metal in the organ

PRESENZA DI ZINCO IN CIPRINIDI DI UN’ASTA FLUVIALE DELLA CALABRIA: RILIEVI CHIMICI E OSSERVAZIONI ISTO-MORFOLOGICHE

The aim of this study was to describe the chemical and histomorphological findings in six Barbus barbus, six Ciprinus carpio, six Carassius carassius from a river of Calabria. All the exemplary were fished alive. Besides three Carassius auratus from commercial activity were utilized like control. In subjects taken by the river severe lesions were found in the gills and liver. These histological alterations were associated to high level of zinc too (300 ÷ 350 mg/kg of sample, compared to controls which had values of 50 ÷ 60 mg/kg of sample). The results show the need for continued monitoring of this element on the different environmental matrices, and in order to limit the effects on organisms that led to biomagnification up the food chain, of which man represents the summit

Smoking behaviour, cessation attempts and the influence of parental smoking in older adult women: a cross-sectional analysis from Italy

OBJECTIVES: To investigate the association between parental smoking during infancy/adolescence and smoking prevalence in older adult women, and to provide a description of smoking and smoking cessation patterns in this subset of the population. STUDY DESIGN: Cross-sectional survey. METHODS: Between 1999 and 2001, trained physicians in 11 health agencies throughout the Abruzzo Region, Italy, conducted semi-structured interviews on 9708 women aged 50-70 years attending mammographic screening (overall response rate 89%). Information was collected on sociodemographic characteristics, smoking habits, parental smoking during their infancy and/or adolescence, and exposure to environmental tobacco smoke (ETS) inside or outside the family. RESULTS AND CONCLUSIONS: The overall prevalence of current smoking was 15.6% (n=1516), and that of former smoking was 13.2%. Women whose parent(s) smoked were more likely to be current smokers, especially if only the mother smoked (adjusted odds ratio 4.27; 95% confidence interval 2.24-8.12). Other factors significantly associated with current smoking in the multivariate analysis were younger age, lower body mass index, higher level of education, unmarried status, and exposure to ETS either inside or outside the family environment. Eighteen percent of all current smokers were non-inhalers, and more than 60% of ex-smokers quit smoking on their first attempt. Our findings expand the existing evidence suggesting that a strong effect of parental conduct on a daughter's smoking behaviour may persist throughout life. Although more research is needed, especially to clarify the role of genetic and environmental factors in determining the mother-child smoking association, our results suggest that intensifying smoking prevention efforts directed at women with children might considerably reduce the risk of ever smoking in future female generations

Smoking behaviour, cessation attempts and the influence of parental smoking in older adult women: a cross-sectional analysis from Italy

OBJECTIVES: To investigate the association between parental smoking during infancy/adolescence and smoking prevalence in older adult women, and to provide a description of smoking and smoking cessation patterns in this subset of the population. STUDY DESIGN: Cross-sectional survey. METHODS: Between 1999 and 2001, trained physicians in 11 health agencies throughout the Abruzzo Region, Italy, conducted semi-structured interviews on 9708 women aged 50-70 years attending mammographic screening (overall response rate 89%). Information was collected on sociodemographic characteristics, smoking habits, parental smoking during their infancy and/or adolescence, and exposure to environmental tobacco smoke (ETS) inside or outside the family. RESULTS AND CONCLUSIONS: The overall prevalence of current smoking was 15.6% (n=1516), and that of former smoking was 13.2%. Women whose parent(s) smoked were more likely to be current smokers, especially if only the mother smoked (adjusted odds ratio 4.27; 95% confidence interval 2.24-8.12). Other factors significantly associated with current smoking in the multivariate analysis were younger age, lower body mass index, higher level of education, unmarried status, and exposure to ETS either inside or outside the family environment. Eighteen percent of all current smokers were non-inhalers, and more than 60% of ex-smokers quit smoking on their first attempt. Our findings expand the existing evidence suggesting that a strong effect of parental conduct on a daughter's smoking behaviour may persist throughout life. Although more research is needed, especially to clarify the role of genetic and environmental factors in determining the mother-child smoking association, our results suggest that intensifying smoking prevention efforts directed at women with children might considerably reduce the risk of ever smoking in future female generations