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769篇 您的检索式:作者名="Cortese"
    题名 作者 年代 出处 被引量
1Support-Vector Networks显示文摘Corinna Cortes Vladimir Vapnik 1995Machine Learning1995,,3:13
2Characterization of hepatitis B virus X gene quasispecies complexity in mono-infection and hepatitis delta virus superinfection显示文摘Hepatitis delta virus(HDV) seems to strongly suppress hepatitis B virus(HBV)replication, although little is known about the mechanism of this interaction. Both these viruses show a dynamic distribution of mutants, resulting in viral quasispecies. Next-generation sequencing is a viable approach for analyzing the composition of these mutant spectra. As the regulatory hepatitis B X protein(HBx) is essential for HBV replication, determination of HBV X gene(HBX)quasispecies complexity in HBV/HDV infection compared to HBV monoinfection may provide information on the interactions between these two viruses.AIM To compare HBV quasispecies complexity in the HBX 5' region between chronic hepatitis delta(CHD) and chronic HBV mono-infected patients.METHODS Twenty-four untreated patients were included: 7/24(29.2%) with HBeAgnegative chronic HBV infection(CI, previously termed inactive carriers), 8/24(33.3%) with HBeAg-negative chronic hepatitis B(CHB) and 9/24(37.5%) with CHD. A serum sample from each patient was first tested for HBV DNA levels.The HBX 5' region [nucleotides(nt) 1255-1611] was then PCR-amplified for subsequent next-generation sequencing(MiSeq, Illumina, United States). HBV quasispecies complexity in the region analyzed was evaluated using incidencebased indices(number of haplotypes and number of mutations), abundancebased indices(Hill numbers of order 1 and 2), and functional indices(mutation frequency and nucleotide diversity). We also evaluated the pattern of nucleotide changes to investigate which of them could be the cause of the quasispecies complexity.RESULTS CHB patients showed higher median HBV-DNA levels [5.4 logIU/mL,interquartile range(IQR) 3.5-7.9] than CHD(3.4 logIU/mL, IQR 3-7.6)(P = n.s.)or CI(3.2 logIU/mL, IQR 2.3-3.5)(P < 0.01) patients. The incidence and abundance indices indicated that HBV quasispecies complexity was significantly greater in CI than CHB. A similar trend was observed in CHD patients, although only Hill numbers of order 2 showed statistically significant differences(CHB2.81, IQR 1.11-4.57 vs CHD 8.87, 6.56-11.18, P = 0.038). There were no significant differences in the functional indices, but CI and CHD patients also showed a trend towards greater complexity than CHB. No differences were found for any HBV quasispecies complexity indices between CHD and CI patients. G-to-A and C-to-T nucleotide changes, characteristic of APOBEC3 G, were higher in CHD and CI than in CHB in genotype A haplotypes, but not in genotype D. The proportion of nt G-to-A vs A-to-G changes and C-to-T vs T-to-C changes in genotype A and D haplotypes in CHD patients showed no significant differences. In CHB and CI the results of these comparisons were dependent on HBV genotype.CONCLUSION The lower-replication CHD and CI groups show a trend to higher quasispecies complexity than the higher-replication CHB group. The mechanisms associated with this greater complexity require elucidation.Cristina Godoy David Tabernero Sara Sopena Josep Gregori Maria Francesca Cortese Carolina González Rosario Casillas Mar?al Yll Ariadna Rando Rosa López-Martínez Josep Quer Gloria González-Aseguinolaza Rafael Esteban Mar Riveiro-Barciela Maria Buti Francisco Rodríguez-Frías 2019World Journal of Gastroenterology2019,25,13:6
3Detection of hyper-conserved regions in hepatitis B virus X gene potentially useful for gene therapy显示文摘AIM To detect hyper-conserved regions in the hepatitis B virus(HBV) X gene(HBX) 5' region that could be candidates for gene therapy.METHODS The study included 27 chronic hepatitis B treatmentnaive patients in various clinical stages(from chronic infection to cirrhosis and hepatocellular carcinoma, both HBeA g-negative and HBeA g-positive), and infected with HBV genotypes A-F and H. In a serum sample from each patient with viremia > 3.5 log IU/m L, the HBX 5' end region [nucleotide(nt) 1255-1611] was PCRamplified and submitted to next-generation sequencing(NGS). We assessed genotype variants by phylogenetic analysis, and evaluated conservation of this region by calculating the information content of each nucleotide position in a multiple alignment of all unique sequences(haplotypes) obtained by NGS. Conservation at the HBx protein amino acid(aa) level was also analyzed.RESULTS NGS yielded 1333069 sequences from the 27 samples, with a median of 4578 sequences/sample(2487-9279, IQR 2817). In 14/27 patients(51.8%), phylogenetic analysis of viral nucleotide haplotypes showed a complex mixture of genotypic variants. Analysis of the information content in the haplotype multiple alignments detected 2 hyper-conserved nucleotide regions, one in the HBX upstream non-coding region(nt 1255-1286) and the other in the 5' end coding region(nt 1519-1603). This last region coded for a conserved amino acid region(aa 63-76) that partially overlaps a Kunitz-like domain.CONCLUSION Two hyper-conserved regions detected in the HBX 5' end may be of value for targeted gene therapy, regardless of the patients' clinical stage or HBV genotype.Carolina González David Tabernero Maria Francesca Cortese Josep Gregori Rosario Casillas Mar Riveiro-Barciela Cristina Godoy Sara Sopena Ariadna Rando Marcal Yll Rosa Lopez-Martinez Josep Quer Rafael Esteban Maria Buti Francisco Rodríguez-Frías 2018World Journal of Gastroenterology2018,24,19:6
4Analysis of hepatitis B virus preS1 variability and prevalence of the rs2296651 polymorphism in a Spanish population显示文摘AIM To determine the variability/conservation of the domain of hepatitis B virus(HBV) pre S1 region that interacts with sodium-taurocholate cotransporting polypeptide(hereafter, NTCP-interacting domain) and the prevalence of the rs2296651 polymorphism(S267 F, NTCP variant) in a Spanish population. METHODS Serum samples from 246 individuals were included and divided into 3 groups: patients with chronic HBV infection(CHB)(n = 41, 73% Caucasians), patients with resolved HBV infection(n = 100, 100% Caucasians) and an HBV-uninfected control group(n = 105, 100% Caucasians). Variability/conservation of the amino acid(aa) sequences of the NTCPinteracting domain,(aa 2-48 in viral genotype D) and a highly conserved pre S1 domain associated with virion morphogenesis(aa 92-103 in viral genotype D) were analyzed by next-generation sequencing and compared in 18 CHB patients with viremia > 4 log IU/mL. The rs2296651 polymorphism was determined in all individuals in all 3 groups using an in-house real-time PCR melting curve analysis.RESULTS The HBV pre S1 NTCP-interacting domain showed a high degree of conservation among the examined viral genomes especially between aa 9 and 21(in the genotype D consensus sequence). As compared with the virion morphogenesis domain, the NTCPinteracting domain had a smaller proportion of HBV genotype-unrelated changes comprising > 1% of the quasispecies(25.5% vs 31.8%), but a larger proportion of genotype-associated viral polymorphisms(34% vs 27.3%), according to consensus sequences from Gen Bank patterns of HBV genotypes A to H. Variation/conservation in both domains depended on viral genotype, with genotype C being the most highly conserved and genotype E the most variable(limited finding, only 2 genotype E included). Of note, proline residues were highly conserved in both domains, and serine residues showed changes only to threonine or tyrosine in the virion morphogenesis domain. The rs2296651 polymorphism was not detected in any participant.CONCLUSION In our CHB population, the NTCP-interacting domain was highly conserved, particularly the proline residues and essential amino acids related with the NTCP interaction, and the prevalence of rs2296651 was low/null.Rosario Casillas David Tabernero Josep Gregori Irene Belmonte Maria Francesca Cortese Carolina González Mar Riveiro-Barciela Rosa Maria López Josep Quer Rafael Esteban Maria Buti Francisco Rodríguez-Frías 2018World Journal of Gastroenterology2018,24,6:5
5Lexical bundles in published and student disciplinary writing: Examples from history and biology显示文摘Viviana Cortes 2004English for Specific Purposes2004,,4:5
6Radiomics in colorectal cancer patients显示文摘The main therapeutic options for colorectal cancer are surgical resection and adjuvant chemotherapy in non-metastatic disease.However,the evaluation of the overall adjuvant chemotherapy benefit in patients with a high risk of recurrence is challenging.Radiological images can represent a source of data that can be analyzed by using automated computer-based techniques,working on numerical information coded within Digital Imaging and Communications in Medicine files:This image numerical analysis has been named“radiomics”.Radiomics allows the extraction of quantitative features from radiological images,mainly invisible to the naked eye,that can be further analyzed by artificial intelligence algorithms.Radiomics is expanding in oncology to either understand tumor biology or for the development of imaging biomarkers for diagnosis,staging,and prognosis,prediction of treatment response and diseases monitoring and surveillance.Several efforts have been made to develop radiomics signatures for colorectal cancer patient using computed tomography(CT)images with different aims:The preoperative prediction of lymph node metastasis,detecting BRAF and RAS gene mutations.Moreover,the use of delta-radiomics allows the analysis of variations of the radiomics parameters extracted from CT scans performed at different timepoints.Most published studies concerning radiomics and magnetic resonance imaging(MRI)mainly focused on the response of advanced tumors that under-went neoadjuvant therapy.Nodes status is the main determinant of adjuvant chemotherapy.Therefore,several radiomics model based on MRI,especially on T2-weighted images and ADC maps,for the preoperative prediction of nodes metastasis in rectal cancer has been developed.Current studies mostly focused on the applications of radiomics in positron emission tomogra-phy/CT for the prediction of survival after curative surgical resection and assessment of response following neoadjuvant chemoradiotherapy.Since colorectal liver metastases develop in about 25%of patients with colorectal carcinoma,the main diagnostic tasks of radiomics should be the detection of synchronous and metachronous lesions.Radiomics could be an additional tool in clinical setting,especially in identifying patients with high-risk disease.Nevertheless,radiomics has numerous shortcomings that make daily use extremely difficult.Further studies are needed to assess performance of radiomics in stratifying patients with high-risk disease.Riccardo Inchingolo Cesare Maino Roberto Cannella Federica Vernuccio Francesco Cortese Michele Dezio Antonio Rosario Pisani Teresa Giandola Marco Gatti Valentina Giannini Davide Ippolito Riccardo Faletti 2023World Journal of Gastroenterology2023,29,19:4
7RNAi mechanisms in Huntington’s disease therapy:siRNA versus shRNA显示文摘Huntington’s Disease(HD)is a genetically dominant trinucleotide repeat disorder resulting from CAG repeats within the Huntingtin(HTT)gene exceeding a normal range(>36 CAGs).Symptoms of the disease manifest in middle age and include chorea,dystonia,and cognitive decline.Typical latency from diagnosis to death is 20 years.There are currently no disease-modifying therapies available to HD patients.RNAi is a potentially curative therapy for HD.A popular line of research employs siRNA or antisense oligonucleotides(ASO)to knock down mutant Huntingtin mRNA(mHTT).Unfortunately,this modality requires repeated dosing,commonly exhibit off target effects(OTEs),and exert renal and hepatic toxicity.In contrast,a single AAV-mediated short-hairpin RNA(shRNA)dose can last years with low toxicity.In addition,we highlight research indicating that shRNA elicits fewer OTEs than siRNA when tested head-tohead.Despite this promise,shRNA therapy has been held back by difficulties controlling expression(oversaturating cells with toxic levels of RNA construct).In this review,we compare RNAi modalities for HD and propose novel methods of optimizing shRNA expression and on-target fidelity.Sebastian Aguiar Bram van der Gaag Francesco Albert Bosco Cortese 2017Translational Neurodegeneration2017,6,1:3
8European LeukemiaNet recommendations for the management of chronic myeloid leukemia: 2013显示文摘Michele Baccarani Michael W. Deininger Gianantonio Rosti Andreas Hochhaus Simona Soverini Jane F. Apperley Francisco Cervantes Richard E. Clark Jorge E. Cortes Fran?ois Guilhot Henrik Hjorth-Hansen Timothy P. Hughes Hagop M. Kantarjian Dong-Wook Kim Richa 2013Blood2013,,6:3
9Human chronic myeloid leukemia stem cells are insensitive to imatinib despite inhibition of BCR-ABL activity显示文摘Corbin Amie S Agarwal Anupriya Loriaux Marc Cortes Jorge Deininger Michael W Druker Brian J 2011Journal of Clinical Investigation2011,,1:3
10miR-328 Functions as an RNA Decoy to Modulate hnRNP E2 Regulation of mRNA Translation in Leukemic Blasts显示文摘Anna M. Eiring Jason G. Harb Paolo Neviani Christopher Garton Joshua J. Oaks Riccardo Spizzo Shujun Liu Sebastian Schwind Ramasamy Santhanam Christopher J. Hickey Heiko Becker Jason C. Chandler Raul Andino Jorge Cortes Peter Hokland Claudia S. Huettner Ra 2010Cell2010,,5:2
11Liver metastases “siphon” off immunotherapy response显示文摘For many different cancers,the advent of immunotherapy(IT)treatments,in particular immune checkpoint inhibitors,aimed at reviving the immune response against cancer cells,has led to a great improvement in terms of clinical benefit.Despite the success of IT,even in advanced metastatic cancers,some patients still fail to respond for reasons yet unclear(1,2).Yu et al.in an issue of Nature Medicine.Nina Cortese Federica Marchesi 2021Hepatobiliary Surgery and Nutrition2021,10,4:2
12Liver metastases:The role of magnetic resonance imaging显示文摘The liver is one of the organs most commonly involved in metastatic disease,especially due to its unique vascularization.It’s well known that liver metastases represent the most common hepatic malignant tumors.From a practical point of view,it’s of utmost importance to evaluate the presence of liver metastases when staging oncologic patients,to select the best treatment possible,and finally to predict the overall prognosis.In the past few years,imaging techniques have gained a central role in identifying liver metastases,thanks to ultrasonography,contrast-enhanced computed tomography(CT),and magnetic resonance imaging(MRI).All these techniques,especially CT and MRI,can be considered the noninvasive reference standard techniques for the assessment of liver involvement by metastases.On the other hand,the liver can be affected by different focal lesions,sometimes benign,and sometimes malignant.On these bases,radiologists should face the differential diagnosis between benign and secondary lesions to correctly allocate patients to the best management.Considering the above-mentioned principles,it’s extremely important to underline and refresh the broad spectrum of liver metastases features that can occur in everyday clinical practice.This review aims to summarize the most common imaging features of liver metastases,with a special focus on typical and atypical appearance,by using MRI.Cesare Maino Federica Vernuccio Roberto Cannella Francesco Cortese Paolo NiccolòFranco Clara Gaetani Valentina Giannini Riccardo Inchingolo Davide Ippolito Arianna Defeudis Giulia Pilato Davide Tore Riccardo Faletti Marco Gatti 2023World Journal of Gastroenterology2023,29,36:2
13If you look at … : Lexical Bundles in University Teaching and Textbooks显示文摘Douglas Biber Susan Conrad Viviana Cortes 2004Applied Linguistics2004,,:2
14If you look at … : Lexical Bundles in University Teaching and Textbooks显示文摘Douglas Biber Susan Conrad Viviana Cortes 2004Applied Linguistics2004,,:2
15The role of glutamate in anxiety and related disorders 显示文摘Cortese BM Phan KL 2005CNS Spectr2005,10,10:1
16Carcinoma of the duodenum 显示文摘Cortese AF Cornell GN 1972Cancer1972,29,4:1
17If You Look at…:Lexical Bundles in University Teaching and Textbooks显示文摘Biber D Conrad S Cortes V 0,,03:1
18One-step transversal palatal distraction and maxillary repositioning:technical considerations,advantages,and long-term stability显示文摘Cortese A Savastano M Savastano G Claudio PP 0,,:1
19The MAP kinase TVK1 regulates conidiation,hydrophobicity and the expression of genes encoding cell wall proteins in the fungus Tri-choderma virens显示文摘Mendoza-Mendoza A Rosales-Saavedra T Cortes C 0,,:1
20Wall shear stress is associated with intima-media thickness and carotid atherosclerosis in subjects at low coronary heart disease risk显示文摘 Cortese C Fiaschi E 2004Stroke2004,35,:1
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