Bacigalupo A.,Universita Cattolica Del Sacro Cuore |
Giammarco S.,Universita Cattolica Del Sacro Cuore |
Sica S.,Universita Cattolica Del Sacro Cuore
International Journal of Hematology | Year: 2016
Standard front-line treatment for acquired aplastic anemia (AA) for patients is either immunosuppressive therapy (IST) or bone marrow transplantation (BMT), usually from an HLA identical sibling. Whereas long-term survival is comparable with either treatment, important differences remain: IST patients may have incomplete or no recovery, are exposed to late clonal disorders and relapse of the original disease. Transplantation is a curative treatment, but patients are exposed to transplant-related complications both acute and chronic, such as chronic graft versus host disease (cGvHD). In the year 2000, a study by the European Group for Blood and Marrow Transplantation (EBMT), looked at failure free survival (FFS), in patients receiving first-line BMT from an HLA identical sibling, or the first-line IST. Young patients with low neutrophil counts benefited of the first-line BMT; the opposite was true for older patients with higher neutrophil counts; and a third intermediate group of patients had comparable survival irrespective of the first-line therapy. We have now studied a more recent cohort of patients to assess whether things have changed over the years. We have found similar results, although overall survival has improved, as a consequence of changes in the IST and BMT protocols. © 2016, The Japanese Society of Hematology.
Lanubile A.,Universita Cattolica Del Sacro Cuore |
Ferrarini A.,Universita` Degli Studi Of Verona |
Maschietto V.,Universita Cattolica Del Sacro Cuore |
Delledonne M.,Universita` Degli Studi Of Verona |
And 2 more authors.
BMC Genomics | Year: 2014
Background: Fusarium verticillioides causes ear rot in maize (Zea mays L.) and accumulation of mycotoxins, that affect human and animal health. Currently, chemical and agronomic measures to control Fusarium ear rot are not very effective and selection of more resistant genotypes is a desirable strategy to reduce contaminations. A deeper knowledge of molecular events and genetic basis underlying Fusarium ear rot is necessary to speed up progress in breeding for resistance.Results: A next-generation RNA-sequencing approach was used for the first time to study transcriptional changes associated with F. verticillioides inoculation in resistant CO441 and susceptible CO354 maize genotypes at 72 hours post inoculation. More than 100 million sequence reads were generated for inoculated and uninoculated control plants and analyzed to measure gene expression levels. Comparison of expression levels between inoculated vs. uninoculated and resistant vs. susceptible transcriptomes revealed a total number of 6,951 differentially expressed genes. Differences in basal gene expression were observed in the uninoculated samples. CO441 genotype showed a higher level of expression of genes distributed over all functional classes, in particular those related to secondary metabolism category. After F. verticillioides inoculation, a similar response was observed in both genotypes, although the magnitude of induction was much greater in the resistant genotype. This response included higher activation of genes involved in pathogen perception, signaling and defense, including WRKY transcription factors and jasmonate/ethylene mediated defense responses. Interestingly, strong differences in expression between the two genotypes were observed in secondary metabolism category: pathways related to shikimate, lignin, flavonoid and terpenoid biosynthesis were strongly represented and induced in the CO441 genotype, indicating that selection to enhance these traits is an additional strategy for improving resistance against F. verticillioides infection.Conclusions: The work demonstrates that the global transcriptional analysis provided an exhaustive view of genes involved in pathogen recognition and signaling, and controlling activities of different TFs, phytohormones and secondary metabolites, that contribute to host resistance against F. verticillioides. This work provides an important source of markers for development of disease resistance maize genotypes and may have relevance to study other pathosystems involving mycotoxin-producing fungi. © 2014 Lanubile et al.; licensee BioMed Central Ltd.
Polka J.,Universita Cattolica Del Sacro Cuore |
Rebecchi A.,Universita Cattolica Del Sacro Cuore |
Pisacane V.,Universita Cattolica Del Sacro Cuore |
Morelli L.,Universita Cattolica Del Sacro Cuore |
Puglisi E.,Universita Cattolica Del Sacro Cuore
Food Microbiology | Year: 2014
The bacterial diversity involved in food fermentations is one of the most important factors shaping the final characteristics of traditional foods. Knowledge about this diversity can be greatly improved by the application of high-throughput sequencing technologies (HTS) coupled to the PCR amplification of the 16S rRNA subunit. Here we investigated the bacterial diversity in batches of Salame Piacentino PDO (Protected Designation of Origin), a dry fermented sausage that is typical of a regional area of Northern Italy. Salami samples from 6 different local factories were analysed at 0, 21, 49 and 63 days of ripening; raw meat at time 0 and casing samples at 21 days of ripening where also analysed, and the effect of starter addition was included in the experimental set-up. Culture-based microbiological analyses and PCR-DGGE were carried out in order to be compared with HTS results. A total of 722,196 high quality sequences were obtained after trimming, paired-reads assembly and quality screening of raw reads obtained by Illumina MiSeq sequencing of the two bacterial 16S hypervariable regions V3 and V4; manual curation of 16S database allowed a correct taxonomical classification at the species for 99.5% of these reads. Results confirmed the presence of main bacterial species involved in the fermentation of salami as assessed by PCR-DGGE, but with a greater extent of resolution and quantitative assessments that are not possible by the mere analyses of gel banding patterns. Thirty-two different Staphylococcus and 33 Lactobacillus species where identified in the salami from different producers, while the whole data set obtained accounted for 13 main families and 98 rare ones, 23 of which were present in at least 10% of the investigated samples, with casings being the major sources of the observed diversity. Multivariate analyses also showed that batches from 6 local producers tend to cluster altogether after 21 days of ripening, thus indicating that HTS has the potential for fine scale differentiation of local fermented foods. © 2014 Elsevier Ltd.
Vincenti S.,Universita Cattolica Del Sacro Cuore |
Quaranta G.,Universita Cattolica Del Sacro Cuore |
De Meo C.,Universita Cattolica Del Sacro Cuore |
Bruno S.,Universita Cattolica Del Sacro Cuore |
And 4 more authors.
Science of the Total Environment | Year: 2014
This study provides a detailed description of the distribution of non-fermentative gram-negative bacteria (NFGNB) collected in water sources (tap water and water used for haemodialysis and bronchoscope flushing) from different wards of a tertiary care hospital. The aim is to identify risk practices for patients or to alert clinicians to the possible contamination of environment and medical devices. The resistance profile of NFGNB environmental isolates has shown that more than half (55.56%) of the strains isolated were resistant to one or more antibiotics tested in different antimicrobial categories. In particular, 38.89% of these strains were multidrug resistant (MDR) and 16.67% were extensively drug resistant (XDR). The most prevalent bacterial species recovered in water samples were Pseudomonas aeruginosa, Pseudomonas fluorescens, Ralstonia pickettii and Stenotrophomonas maltophilia. Analysis of antibiotic resistance rates has shown remarkable differences between Pseudomonadaceae (P. aeruginosa and P. fluorescens) and emerging pathogens, such as S. maltophilia and R. pickettii. Multidrug resistance can be relatively common among nosocomial isolates of P. aeruginosa, which represent the large majority of clinical isolates; moreover, our findings highlight that the emergent antibiotic resistant opportunistic pathogens, such as R. pickettii and S. maltophilia, isolated from hospital environments could be potentially more dangerous than other more known waterborne pathogens, if not subjected to surveillance to direct the decontamination procedures. © 2014.