Search results for " PATOLOGIA"
showing 10 items of 779 documents
The magnesium global network (MaGNet) to promote research on magnesium in diseases focusing on covid-19
2021
When the current SARS-CoV-2 pandemic began in early 2020, the global magnesium researcher community came together and noted the striking similarities between COVID-19 risk factors and conditions associated with magnesium deficit state in humans, reasoning that magnesium deficiency could worsen the course of COVID-19 [1-4]. This prompted establishment of a worldwide collaborative network with regular virtual meetings to brainstorm the associations between magnesium and COVID-19. We hypothesize that magnesium deficiency, a common but mostly unrecognized state in modern global societies, could be an important component of the susceptibility to SARS-CoV-2 infection. Consequently, restoring the …
Seeds vitality and fungal contamination in Abies nebrodensis
2022
Seeds of Abies nebrodensis were subjected to laboratory tests aimed to detect fungal contaminants and to obtain xenobiotic-free seedlings, by the use of different surface sterilising agents. Moreover, hot water at 60°C was used to suppress any fungal microorganisms colonizing the inner tissues. Alternaria alternata, Aspergillus flavus and Stemphylium vesicarium were the most frequent fungal contaminants. Non-contaminated seeds showed germination values ranging from 0 to 36.4% depending on the applied sterilization protocol. Further analyses will be carried out to establish the influence of these fungi on the seed germination process and their relationship with seedlings of A. nebrodensis.
Stephanotis floribunda infetta da TSWV in Liguria.
2010
Il genere Stephanotis (famiglia delle Asclepiadaceae ) comprende cinque specie di piante rampicanti, sempreverdi, originarie del Madagascar. La più nota ed apprezzata è la specie S. floribunda Brongn., i cui fiori tubulosi, bianchi, leggermente carnosi, riuniti in ombrelle ascellari, sbocciano da maggio ad ottobre emanando un intenso e gradevole profumo. Questi fiori ricordano molto quelli del gelsomino, pur essendo più grandi e cerosi, ma questa somiglianza è bastata ad attribuire alla pianta l’appellativo “gelsomino del Madagascar”. S. floribunda costituisce una coltura di recente introduzione nella Piana di Albenga (Savona): la sua coltivazione è per ora limitata a poche aziende che prod…
The complete genome sequence of Lamium mild mosaic virus, a member of the genus Fabavirus
2013
Springer-Verlag Wien 2013 Abstract Lamium mild mosaic virus (LMMV) is the only one of the five members of the genus Fabavirus for which there are no nucleotide sequence data. In this study, the complete genome sequence of LMMV was determined and compared with the available complete genome sequences of other members of the genus Fabavirus. The genome was the largest of the genus but maintained the typical orga- nization, with RNA 1 of 6080 nucleotides (nt), RNA 2 of 4065 nt, and an unusually long 3 0 untranslated region in RNA 2 of 603 nt. Phylogenetic analysis of the amino acid sequences of the protease-polymerase (Pro-Pol) region and the two coat proteins confirmed that LMMV belongs to a d…
Carbon monoxide improves cardiac energetics and safeguards the heart during reperfusion after cardiopulmonary bypass in pigs
2004
Ischemia-reperfusion injury, a clinical problem during cardiac surgery, involves worsened adenosine trisphosphate (ATP) generation and damage to the heart. We studied carbon monoxide ( CO) pretreatment, proven valuable in rodents but not previously tested in large animals, for its effects on pig hearts subjected to cardiopulmonary bypass with cardioplegic arrest. Hearts of CO-treated pigs showed significantly higher ATP and phosphocreatine levels, less interstitial edema, and apoptosis of cardiomyocytes and required fewer defibrillations after bypass. We conclude that treatment with CO improves the energy status, prevents edema formation and apoptosis, and facilitates recovery in a clinical…
Polymorphisms of genes of TGF-beta pathway and susceptibility to colorectal cancer
2012
Background: Genetic background implicated in cytokine network may have a key role in the susceptibility to colorectal cancer (CRC). The TGF-β pathway is involved in several biological processes, including cell proliferation, differentiation, migration and apoptosis. Methods: rs1800471 SNP polymorphism of TGF-ß1 rs334348 and rs334349 of TGF-βR1, rs900 of TGF-β2 and rs4522809 of TGF-β2R2 were typed in a group of 82 patients affected by sporadic CRC and in 237 age- and sex-matched healthy controls, using a competitive allele specific PCR assays (KASPar), developed by KBioscience (England). Results: No significant genetic contribution has been observed for 3 of the 5 SNPs tested. Indeed, a sign…
Recombinacion entre los Begomovirus TYLCV y TYLCSV en Italia.
2012
Virescence of tenweeks stock associated to phytoplasma infection in Sicily
2007
In April 2007, a severe disease occurred in Sicily (Italy) in a glasshouse cultivation of tenweeks stock belonging to the cultivar White-Beach. Plants were stunted and rosetted, and the flowers were of small size and characterized by virescence symptoms. Phytoplasma presence and identity was detected by applying PCR/RFLP techniques and sequencing of 16S ribosomal gene. Phytoplasmas were identified as belonging to ribosomal subgroup 16SrII-A, never reported before in Italy and showed 99% of homology with ‘Candidatus Phytoplasma aurantifolia’ and related phytoplasmas. This is the first report of a phytoplasma disease of tenweeks stock. Considering that this Brassicaceae ornamental species is …
Segmentation d'images robuste appliqué à l'imagerie par résonance magnétique et l'échographie de la prostate
2012
Prostate segmentation in trans rectal ultrasound (TRUS) and magnetic resonanceimages (MRI) facilitates volume estimation, multi-modal image registration, surgicalplaning and image guided prostate biopsies. The objective of this thesis is to developshape and region prior deformable models for accurate, robust and computationallyefficient prostate segmentation in TRUS and MRI images. Primary contributionof this thesis is in adopting a probabilistic learning approach to achieve soft classificationof the prostate for automatic initialization and evolution of a shape andregion prior deformable models for prostate segmentation in TRUS images. Twodeformable models are developed for the purpose. An…
Descrizione delle micorrize del gruppo Thelephorales ed ecologia specifica delle specie più importanti trovate in un impianto di conifere alloctone i…
2014
La famiglia delle Thelephoraceae include diverse specie di funghi basidiomiceti imenomiceti con corpi fruttiferi dalla forma assai variabile, coriacei o carnosi e a habitat tipicamente terricolo o lignicolo (saprotrofi, cariogeni e micorrizici, in prevalenza). A tale famiglia, la cui sistematica è ancora incerta, si attribuisce attualmente una decina di generi, fra i quali Thelephora, Tomentella, Tomentellopsis, Pseudotomentella e Lenzitopsis sono frequentemente riportati in letteratura come ectomicorrizici (ECM) in simbiosi con radici di piante forestali (aghi- e latifoglie), in vari ecosistemi. In particolare, studi dettagliati riguardano la descrizione morfologica delle ECM che essi inst…