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711.
712.
Marco Casadio Francesca Biancaniello Diletta Overi Rosanna Venere Guido Carpino Eugenio Gaudio Domenico Alvaro Vincenzo Cardinale 《International journal of molecular sciences》2021,22(11)
Cholangiocarcinomas (CCAs) are heterogeneous biliary tract malignancies with dismal prognosis, mainly due to tumor aggressiveness, late diagnosis, and poor response to current therapeutic options. High-throughput technologies have been used as a fundamental tool in unveiling CCA molecular landscape, and several molecular classifications have been proposed, leading to various targeted therapy trials. In this review, we aim to analyze the critical issues concerning the status of precision medicine in CCA, discussing molecular signatures and clusters, related to both anatomical classification and different etiopathogenesis, and the latest therapeutic strategies. Furthermore, we propose an integrated approach comprising the CCA molecular mechanism, pathobiology, clinical and histological findings, and treatment perspectives for the ultimate purpose of improving the methods of patient allocations in clinical trials and the response to personalized therapies. 相似文献
713.
Cirino Botta Rita Maria Agostino Vincenzo Dattola Vittoria Cianci Natale Daniele Calandruccio Giovanna Bianco Antonino Mafodda Roberto Maisano Eleonora Iuliano Giovanna Orizzonte Domenico Mazzacuva Antonia Consuelo Falzea Rita Emilena Saladino Rocco Giannicola Giorgio Restifo Umberto Aguglia Michele Caraglia Pierpaolo Correale 《International journal of molecular sciences》2021,22(12)
Pembrolizumab (mAb to PD-1) has been recently approved for the therapy of pretreated urothelial cancer. Despite the efficacy, it is often accompanied by unpredictable and sometime severe immune-related (ir) adverse events (AEs). Here, we report the clinical and immune–biological characterization of a patient with a metastatic bladder cancer who developed myositis signs (M) and a myasthenia-like syndrome (MLS) during treatment with pembrolizumab. The patient presented an autoimmunity-associated HLA haplotype (HLA-A*02/HLA-B*08/HLA-C*07/HLA-DRB1*03) and experienced an increase in activated CD8 T-cells along the treatment. The symptomatology regressed after pembrolizumab discontinuation and a pyridostigmine and steroids-based therapy. This is the first report of concurrent M and MLS appearance in cancer patients receiving pembrolizumab. More efforts are needed to define early the risk and the clinical meaning of irAEs in this setting. 相似文献
714.
Francesco Buccafurri Gianluca Lax Domenico Saccà Luigi Pontieri Domenico Rosaci 《The VLDB Journal The International Journal on Very Large Data Bases》2008,17(5):1041-1061
Histograms are used to summarize the contents of relations into a number of buckets for the estimation of query result sizes.
Several techniques have been proposed in the past for determining bucket boundaries which provide accurate estimations. However,
while search strategies for optimal bucket boundaries are rather sophisticated, no much attention has been paid for estimating
queries inside buckets and all of the above techniques adopt naive methods for such an estimation. This paper focuses on the
problem of improving the estimation inside a bucket once its boundaries have been fixed. The proposed technique is based on
the addition, to each bucket, of a memory-word additional information (organized into a tree-like index), storing approximate
cumulative frequencies in a hierarchical fashion. Both theoretical analysis and experimental results show that the proposed
approach improves the accuracy of the estimation inside buckets, w.r.t. both classical approaches (like continuous value assumption
and uniform spread assumption) and a number of alternative ways to organize the additional information. The index is later
added to state-of-the-art histograms obtaining the non-obvious result that despite the spatial overhead which reduces the
number of allowed buckets once the storage space has been fixed, the original methods are strongly improved in terms of accuracy.
An abridged version of this paper appeared in the Proceedings of the International Conference on Data Engineering (ICDE 2002),
IEEE Computer Society 2002, ISBN 0-7695-1531-2 [3]. 相似文献
715.
We consider the problem of controlling the state of a two-level quantum system (quantum bit) via an externally applied electro-magnetic field. The describing model is a bilinear right-invariant system whose state varies on the Lie group of 2×2 special unitary matrices. We study the topological structure of the reachable sets. If two or more independent controls are used, then every state can be achieved in arbitrary time. However, this is no longer true if only one control is available and, in this case, we give an exact characterization of states reachable in arbitrary time. We prove small time local controllability for any state and the existence of a critical time which is the smallest time after which every transfer of state is possible. We provide upper and lower bounds for such a time. The mathematical development is motivated by the problem of manipulating the state of a quantum bit. Every transfer of state may be interpreted as a quantum logic operation and not every logic operation can be obtained in arbitrary time. The analysis we present provides information about the feasibility of a given operation as well as estimates for the speed of a quantum computer. 相似文献
716.
A novel predictive control strategy for input‐saturated norm‐bounded linear parameter varying discrete‐time systems is proposed. The solution is computed by minimizing an upper bound to the ‘worst‐case’ infinite horizon quadratic cost under the constraint of steering the future state evolutions, emanating from the current state, into a feasible and positive invariant set. It will be shown that the ‘size’ of this terminal set depends on the rate of change of the scheduling parameter, which is assumed to be bounded and measurable. Copyright © 2007 John Wiley & Sons, Ltd. 相似文献
717.
Alessandro Casavola Domenico Famularo Giuseppe Franzè 《International Journal of Adaptive Control and Signal Processing》2008,22(8):739-756
This paper presents a novel solution to the fault detection and isolation observer design problem for linear time‐invariant systems. A gradient flow approach is proposed for synthesizing a residual generator under optimal eigenstructure assignment. This is achieved by minimizing the spectral condition number of the observer eigenvector matrix. The properties of convergence of the gradient flow solution are proved and its efficiency demonstrated via a numerical example. Copyright © 2007 John Wiley & Sons, Ltd. 相似文献
718.
Domenico Caridi V. Craige Trenerry Simone Rochfort Samantha Duong Dianne Laugher Rod Jones 《Food chemistry》2007,105(2):691-699
There is increasing evidence that flavonols demonstrate beneficial properties for human health. Quercetin is the major flavonol present in onion (Allium cepa cv) and is present predominantly as quercetin 3,4′-diglucoside and quercetin 4′-monoglucoside. These compounds are known to be potent free radical scavengers and antioxidants, and are considered to be protective against cardiovascular disease. Analysis for the presence of these compounds has therefore become more important. Robust capillary zone electrophoresis and high performance liquid chromatography procedures were developed for profiling and quantifying the levels of quercetin 3,4′-diglucoside and quercetin 4′-monoglucoside in 70% methanol/water extracts of six different onion varieties available in Victoria, Australia. Quercetin 3,4′-diglucoside, which is not commercially available as a reference standard, was isolated from freeze-dried onion powder by preparative high performance liquid chromatography and used to quantify the levels in the onion extracts. Significant differences in the levels and ratios of the two compounds were seen between red, brown and white onion varieties (e.g. ‘Redwing’; quercetin 3,4′-diglucoside 191 mg/100 g DW, quercetin 4′-monoglucoside 85 mg/100 g DW; ‘Cream Gold’, quercetin 3,4′-diglucoside 153 mg/100 g DW, quercetin 4′-monoglucoside 58 mg/100 g DW, ‘Spanish white’; quercetin 3,4′-diglucoside <1 mg/100 g DW, quercetin 4′-monoglucoside <1 mg/100 g DW). 相似文献
719.
Selection of Streptococcus thermophilus strains able to produce exopolysaccharides in milk
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Flavio Tidona Miriam Zago Milena Corredig Francesco Locci Giovanna Contarini Giorgio Giraffa Domenico Carminati 《International Journal of Dairy Technology》2016,69(4):569-575
A collection of 139 Streptococcus thermophilus strains was genetically screened by PCR targeting some genes involved in exopolysaccharide (EPS) biosynthesis. Twenty‐nine strains were found to be PCR positive and were grown in skim milk to highlight their ropy character, that is the ability to efficiently thicken the milk cultures and minimise syneresis. Three strains producing a skim milk culture with apparent viscosities of 275 ± 14, 340 ± 21 and 510 ± 42 mPa.s, significantly higher than the average value (135 ± 87.3 mPa.s), were selected. EPS from milk cultures of these three strains was extracted and quantified from 84.4 to 209.2 mg/L. 相似文献
720.
Elene Kakabadze Miriam Zago Lia Rossetti Barbara Bonvini Flavio Tidona Domenico Carminati Nina Chanishvili Giorgio Giraffa 《International Journal of Dairy Technology》2019,72(3):373-380
Matsoni is a traditional Caucasian fermented milk product, characterised by a lactic acid bacteria (LAB) microbiota. Objectives of the present study were to isolate and identify the LAB of Matsoni samples collected from various Georgian areas and to study their technological characteristics. About 300 LAB from 71 samples of Matsoni were isolated and characterised. The species most representatives were Lactobacillus delbrueckii, Streptococcus thermophilus and Lactobacillus rhamnosus. This study highlighted a high degree of biodiversity and a specific geographical distribution of the dominant LAB present in artisanal Matsoni. Some strains showed technological features useful to design a multistrain starter culture for Matsoni. 相似文献