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251篇 您的检索式:作者名="Alfonso D"
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1Role of endoscopic ultrasonography in the loco-regional staging of patients with rectal cancer显示文摘The prognosis of rectal cancer(RC) is strictly related to both T and N stage of the disease at the time of diagnosis. RC staging is crucial for choosing the best multimodal therapy: patients with high risk locally advanced RC(LARC) undergo surgery after neoadjuvant chemotherapy and radiotherapy(NAT); those with low risk LARC are operated on after a preoperative short-course radiation therapy; finally, surgery alone is recommended only for early RC. Several imaging methods are used for staging patients with RC: computerized tomography, magnetic resonance imaging, positron emission tomography, and endoscopic ultrasound(EUS). EUS is highly accurate for the loco-regional staging of RC, since it is capable to evaluate precisely the mural infiltration of the tumor(T), especially in early RC. On the other hand, EUS is less accurate in restaging RC after NAT and before surgery. Finally, EUS is indicated for follow-up of patients operated on for RC, where there is a need for the surveillance of the anastomosis. The aim of this review is to highlight the impact of EUS on the management of patients with RC, evaluating its role in both preoperative staging and follow-up of patients after surgery.Pietro Marone Mario de Bellis Valentina D'Angelo Paolo Delrio Valentina Passananti Elena Di Girolamo Giovanni Battista Rossi Daniela Rega Maura Claire Tracey Alfonso Mario Tempesta 2015World Journal of Gastrointestinal Endoscopy2015,7,7:11
2Atrial fibrillation in the elderly显示文摘Atrial fibrillation(AF)is the most common arrhythmia in elderly population,with age being one of the most important factors involved in its pathogenesis.Conduction disturbances may be present on the surface electrocardiogram before AF onset in some patients.Once this arrhythmia is diagnosed,antithrombotic therapy is mandatory in most cases,as this is the only treatment that has demonstrated to improve survival.Age increases both the risk of thromboembolic and bleeding complications,while benefits from anticoagulant therapy outweigh that from bleeding in most scenarios,also in very elderly patients.However,elderly patients with AF are often undertreated.Non-vitamin K antagonist oral anticoagulants have emerged as an alternative to vitamin K antagonists,with significant less adverse events and better profile in terms of efficacy and safety.Other conditions related to age should be carefully evaluated in these patients(including frailty,comorbidity and polypharmacy)to ensure an individualized clinical and therapeutic approach.Pablo Díez-Villanueva Fernando Alfonso 2019Journal of Geriatric Cardiology2019,16,1:7
3Silicon and silicon nitride photonic circuits for spectroscopic sensing on-a-chip [Invited]显示文摘There is a rapidly growing demand to use silicon and silicon nitride(Si3N4) integrated photonics for sensing applications, ranging from refractive index to spectroscopic sensing. By making use of advanced CMOS technology,complex miniaturized circuits can be easily realized on a large scale and at a low cost covering visible to mid-IR wavelengths. In this paper we present our recent work on the development of silicon and Si3N4-based photonic integrated circuits for various spectroscopic sensing applications. We report our findings on waveguide-based absorption, and Raman and surface enhanced Raman spectroscopy. Finally we report on-chip spectrometers and on-chip broadband light sources covering very near-IR to mid-IR wavelengths to realize fully integrated spectroscopic systems on a chip.Ananth Z.Subramanian Eva Ryckeboer Ashim Dhakal Frédéric Peyskens Aditya Malik Bart Kuyken Haolan Zhao Shibnath Pathak Alfonso Ruocco Andreas De Groote Pieter Wuytens Daan Martens Francois Leo Weiqiang Xie Utsav Deepak Dave Muhammad Muneeb Pol Van Dorpe Joris Van Campenhout Wim Bogaerts Peter Bienstman Nicolas Le Thomas Dries Van Thourhout Zeger Hens Gunther Roelkens Roel Baets 2015Photonics Research2015,3,5:7
4Non-ST elevation acute coronary syndrome in the elderly显示文摘1 Introduction Societies are ageing at an accelerated pace.This scenario is a well-known challenge for health care systems,as chronic diseases,multiple comorbidities and dependency are all entities that often converge in the elderly.Besides,there is an issue regarding a reduction in the general incidence of acute coronary syndrome(ACS)together with a delayed in the age of presentation,which,in sum,lead to an increase in both incidence and prevalence of ACS with age,especially non-ST elevation myocardial infarction(NSTEMI).Pablo Díez-Villanueva César Jiménez Méndez Fernando Alfonso 2020Journal of Geriatric Cardiology2020,17,1:4
5IBD5 polymorphisms in inflammatory bowel disease: Association with response to infliximab显示文摘AIM: Inflammatory bowel diseases (IBD) are multifactorial pathologies of unknown etiology. One susceptibility locus,IBD5, has been mapped to chromosome 5q31. We analyzed our Spanish cohorts of Crohn's disease (CD)and ulcerative colitis (UC) patients to determine whether this locus is associated with IBD, and to ascertain the main clinical phenotype influenced by this risk factor. The kind of interaction, either genetic heterogeneity or epistasis, between this IBD5 susceptibility region and the NOD2/CARD15 gene mutations was studied as well.Finally, ve assessed whether this locus can predict response to infliximab therapy.METHODS: A case control study was performed with 274CD and 211 UC patients recruited from a single center and 511 healthy ethnically matched controls. Two polymorphisms were genotyped in the IBD5 locus and three in the CARD15/NOD2 gene.RESULTS: Our results evidence association only with CD especially with the fistulizing phenotype and in the absence of NOD2/CARD15 variants (mutant allele frequency in patients vscontrols: OR = 2.03, 95% CI = 1.35-3.06,P<0.01). The frequency of the IBD5 homozygous mutant genotype significantly increased in CD patients lacking response to infliximab (RR = 3.88, 95% CI = 1.18-12.0,P<0.05). UC patients overall do not show association with 5q31 polymorphisms, although a similar trend to the one observed in CD is found within the worse prognosis group.CONCLUSION: The IBD5 variants may enhance an individual carrier's risk for CD, mainly in the absence of the NOD2/CARD15 mutations and in fistulizing patients.The data presented suggest the potential role of the 5q31polymorphisms as markers of response to infiiximab.Elena Urcelay Juan Luis Mendoza Alfonso Martínez Laura Fernández Carlos Taxonera Manuel Díaz-Rubio Emilio G.de la Concha 2005World Journal of Gastroenterology2005,11,8:4
6Anatomical and functional changes after dexamethasone implant and ranibizumab in diabetic macular edema: a retrospective cohort study显示文摘AIM: To investigate the efficacy and safety of ranibizumab(RZB group) and dexamethasone implant(DEX group) intravitreal treatments in patients with treatment-na?ve center involved diabetic macular edema(DME) by means of functional and morphological assessments.METHODS: This retrospective cohort study included 50 eyes of 50 patients with DME treated either with RBZ or DEX. Best-corrected visual acuity(BCVA) and microperimetry were evaluated at baseline and during a 6-month follow-up. In addition, central macular thickness(CMT) by means of structural optical coherence tomography(OCT) and retinal capillary plexus density and choriocapillary density by means of OCT angiography were assessed in all cases.RESULTS: Functional and morphological parameters significantly improved during the study period in both groups. BCVA improved significantly in both groups witha greater increase in the DEX group compared to the RBZ group(P=0.030). Microperimetry significantly differed during follow-up between the two treatments(P=0.031). In both groups CMT significantly decreased(P<0.001) without statistically significant differences between the two groups. A statistically significant increase of deep capillary plexus density was detected in both groups at 30 d after therapy. The retreatment rate was 0.70±0.10 and 0.65±0.10 in the RBZ group and 0.65±0.10 and 0.50±0.11 in DEX group at 120 and 180 d respectively. Two out of 25 patients in DEX group showed intraocular pressure increase requiring hypotonic eye drops.CONCLUSION: Both treatments are very effective for DME treatment during 6 mo of follow-up with a lower retreatment rate in DEX group.Leonardo Mastropasqua Silvio Di Staso Rossella D’Aloisio Alessandra Mastropasqua Luca DiAntonio Alfonso Senatore Marco Ciancaglini Marta Di Nicola Giuseppe Di Martino DanieleTognetto Lisa Toto 2019International Journal of Ophthalmology(English edition)2019,12,10:2
7Effect of femtosecond laser-assisted lens surgery on the optic nerve head and the macula显示文摘AIM: To evaluate the effect of femtosecond laser-assisted lens surgery(FLALS;cataract surgery or refractive lens exchange) on the structure of the optic nerve head and the macula.METHODS: This prospective longitudinal study included healthy eyes undergoing FLALS. Eyes with glaucoma or any other ocular disease that could alter optical coherence tomography results were excluded. Retinal nerve fiber layer(RNFL), Bruch’s membrane opening-minimum rim width(BMO-MRW) and macular thickness(MT) were measured preoperatively, 1 and 6 mo after surgery using spectral-domain optical coherence tomography(SD-OCT). Changes between preoperative and postoperative values were evaluated.RESULTS: A total of 87 eyes of 46 patients were included in this study. Preoperative RNFL, BMO-MRW and MT in microns(μm) were 100.77±10.39, 330.31±49.99 and 276.30±33.39, respectively. Postoperative RNFL, BMO-MRW and MT were 104.74±11.55, 348.32±54.05 and 279.83±22.65 1 mo after surgery and 102.93±11.17, 343.11±53.4 and 278.90±22.19 6 mo after surgery, respectively;which equals an increase of 3.93%, 5.45% and 1.27%,respectively, 1 mo after surgery, and 2.14%, 3.87% and 0.94% 6 mo after surgery. The differences between the preoperative and the postoperative RNFL and BMO-MRW values were statistically significant(P<0.001). Regarding MT values, there were not statistically significant differences(P=0.26).CONCLUSION: Our study suggests that FLALS does not have a negative impact on the structural status of the optic nerve head in healthy eyes, assessed by SD-OCT. There is a slight increase in the values of RNFL, BMO-MRW and MT 1 mo and 6 mo after surgery.Josefina Renones de Abajo Beatriz Estévez Jorge Jesús María González Martín Humberto Carreras Díaz Juan Francisco Loro Ferrer Alfonso Antón López 2019International Journal of Ophthalmology(English edition)2019,12,6:2
8Incremental value of thoracic ultrasound in intensive care units:Indications,uses,and applications显示文摘Emergency physicians are required to care for unstable patients with life-threatening conditions, and thus must make decisions that are both quick and precise about unclear clinical situations. There is increasing consensus in favor of using ultrasound as a real-time bedside clinical tool for clinicians in emergency settings alongside the irreplaceable use of historical and physical examinations. B-mode sonography is an old technology that was first proposed for medical applications more than 50 years ago. Its application in the diagnosis of thoracic diseases has always been considered limited, due to the presence of air in the lung and the presence of the bones of the thoracic cage, which prevent the progression of the ultrasound beam. However, the close relationship between air and water in the lungs causes a variety of artifacts on ultrasounds. At the bedside, thoracic ultrasound is based primarily on the analysis of these artifacts, with the aim of improving accuracy and safety in the diagnosis and therapy of the various varieties of pulmonary pathologic diseases which are predominantly 'water-rich' or 'air-rich'. The indications, contraindications, advantages, disadvantages, and techniques of thoracic ultrasound and its related procedures are analyzed in the present review.Biagio Liccardo Francesca Martone Paolo Trambaiolo Sergio Severino Gian Alfonso Cibinel Antonello D'Andrea 2016World Journal of Radiology2016,8,5:2
9Clinical significance of glycated hemoglobin in the acute phase of ST elevation myocardial infarction显示文摘In population-based studies,including diabetic and nondiabetic cohorts,glycated hemoglobin A1c(HbA1c) has been reported as an independent predictor of allcause and cardiovascular disease mortality.Data on the prognostic role of HbA1c in patients with acute myocardial infarction(MI) are not univocal since they stem from studies which mainly differ in patients' selection criteria,therapy(thrombolysis vs mechanical revascularization) and number consistency.The present review is focused on available evidence on the prognostic significance of HbA1c measured in the acute phase in patients with ST-elevation myocardial infarction(STEMI) submitted to primary percutaneous coronary intervention(PCI).We furthermore highlighted the role of HbA1c as a screening tool for glucose intolerance in patients with STEMI.According to available evidence,in contemporary cohorts of STEMI patients submitted to mechanical revascularization,HbA1c does not seem to be associated with short and long term mortality rates.However,HbA1c may represent a screening tool for glucose intolerance from the early phase on in STEMI patients.On a pragmatic ground,an HbA1c testhas several advantages over fasting plasma glucose or an oral glucose tolerance test in an acute setting.The test can be performed in the non-fasting state and reflects average glucose concentration over the preceding 2-3 mo.We therefore proposed an algorithm based on pragmatic grounds which could be applied in STEMI patients without known diabetes in order to detect glucose intolerance abnormalities from the early phase.The main advantage of this algorithm is that it may help in tailoring the follow-up program,by helping in identifying patients at risk for the development of glucose intolerance after MI.Further validation of this algorithm in prospective studies may be required in the contemporary STEMI population to resolve some of these uncertainties around HbA1c screening cutoff points.Chiara Lazzeri Serafina Valente Marco Chiostri Maria Grazia D'Alfonso Gian Franco Gensini 2014World Journal of Cardiology2014,6,4:2
10Neurotrophic fragments as therapeutic alternatives to ameliorate brain aging显示文摘Aging is a global phenomenon and a complex biological process of all living beings that introduces various changes.During this physiological process,the brain is the most affected organ due to changes in its structural and chemical functions,such as changes in plasticity and decrease in the number,diameter,length,and branching of dendrites and dendritic spines.Likewise,it presents a great reduction in volume resulting from the contraction of the gray matter.Consequently,aging can affect not only cognitive functions,including learning and memory,but also the quality of life of older people.As a result of the phenomena,various molecules with notable neuroprotective capacity have been proposed,which provide a therapeutic alternative for people under conditions of aging or some neurodegenerative diseases.It is important to indicate that in recent years the use of molecules with neurotrophic activity has shown interesting results when evaluated in in vivo models.This review aims to describe the neurotrophic potential of molecules such as resveratrol(3,5,4′-trihydroxystilbene),neurotrophins(brain-derived neurotrophic factor),and neurotrophic-type compounds such as the terminal carboxyl domain of the heavy chain of tetanus toxin,cerebrolysin,neuropeptide-12,and rapamycin.Most of these molecules have been evaluated by our research group.Studies suggest that these molecules exert an important therapeutic potential,restoring brain function in aging conditions or models of neurodegenerative diseases.Hence,our interest is in describing the current scientific evidence that supports the therapeutic potential of these molecules with active neurotrophic.Itzel Ortiz Flores Samuel Treviño Alfonso Díaz 2023Neural Regeneration Research2023,18,1:2
11Least cost poultry rations with nutrient variability: A comparison of linear programming with a margin of safety and stochastic programming models显示文摘D' ALFONSO TH ROUSH WB VENTURA JA 1992Poultry Science1992,71,:1
12Sensitive chemiluminescent immunoassay of triclopyr by digital image analysis显示文摘Aurora N. Díaz Francisco G. Sánchez Enrique N. Baro Ana F.G. Díaz Alfonso Aguilar Manuel Algarra 2012Talanta2012,,:1
13Platelet function testing and cardiovascular outcomes: steps forward in identifying the best predictive measure显示文摘ANGIOLILLO D J ALFONSO F 2007Thromb Haemost2007,98,4:1
14New polymorphisms in the IL-10 promoter region 显示文摘D'Alfonso S Rampi M Rolando V 2000Genes Immun2000,1,3:1
15Two single-nucleotide polymorphisms in the 5'and 3'ends of the osteopontin gene contribute to susceptibility to systemic lupus erythelnatosus显示文摘D'Alfonso S Barizzone N Giordano M 2005Arthritis Rheum2005,52,2:1
16Insights into the reaction of β-lactam antibiotics with copper(II) ions in aqueous and micellar media: Kinetic and spectrometric studies显示文摘Alfonso Fernández-González Rosana Badía Marta Elena Díaz-García 2005Analytical Biochemistry2005,,1:1
17Giardia duodenalis genotypes and Cryptosporidium species in humans and domestic animals in Cote d' Ivoire: occurrence and evidence for environmental contamination 显示文摘Berrilli F D'Alfonso R Giangaspero A 2012Trans R Soc Trop Med Hyg2012,106,3:1
18Increased levels of oxida-tive and carbonyl stress markers in normal ovarian cortex surroundingendometriotic cysts显示文摘Di Emidio G D'Alfonso A Leocata P 2014Gynecol Endocrinol2014,30,11:1
19The effect of concurrent fibular fracture on the Hxation of distal tibia fractures:a laboratory comparison of intramedullary nails with locked plates 显示文摘Strauss EJ Alfonso D Kummer FJ 2007J Orthop Trauma2007,21,:1
20Proton MR spectroscopy of cerebral gliomas at 3 T: spatial heterogeneity, and tumour grade and extent显示文摘Alfonso Costanzo Tommaso Scarabino Francesca Trojsi Teresa Popolizio Domenico Catapano Giuseppe M. Giannatempo Simona Bonavita Maurizio Portaluri Michela Tosetti Vincenzo A. d'Angelo Ugo Salvolini Gioacchino Tedeschi 2008European Radiology2008,,8:1
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