218 results match your criteria: "Policlinic of the University of Rome "Tor Vergata" Italy.[Affiliation]"

Respiratory samples from Pneumocystis jirovecii pneumonia (PJP) cases collected at a tertiary-care university hospital in Modena were analyzed for the presence of specific polymorphisms in the mitochondrial large subunit ribosomal RNA (mtLSU-rRNA). Retrospectively, 57 cases were selected in a six-year period and 34 out of the 57 processed BAL samples returned PCR positive results, thus allowing further molecular analysis. The following P.

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Percutaneous aortic leak closure in a small and frail annulus after double heart valve replacement.

J Cardiovasc Med (Hagerstown)

November 2017

aCardiac Surgery Unit bCardiology Unit cCardiac Anesthesia Division, Tor Vergata University Policlinic, Rome, Italy.

: Paravalvular leak (PVL) is an uncommon but serious complication associated with the implantation of prosthetic valves. Following aortic valve replacement, up to 5% of patients affected by PVL develop clinical symptoms of heart failure, hemolysis or both. Percutaneous treatment of PVL has emerged instead of conventional surgery, as a well tolerated and less invasive procedure but remains a challenge.

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Fertility Sparing Strategies in Patients Affected by Placental Site Trophoblastic Tumor.

Curr Treat Options Oncol

August 2017

Department of Biomedical and Dental Sciences and Morpho-Functional Images, University of Messina, 1st floor Biologic Tower, Messina, Italy.

Placental site trophoblastic tumor (PSTT) is the least common and the most ambiguous gestational trophoblastic tumor. Presentation of PSTT may occur in the course of gestation or from 1 week to 14 years after a normal or an abnormal pregnancy (mole, ectopic pregnancy, abortion). The indicators of aggressive behavior for this tumor are not well established.

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Background: Bicuspid aortic valve (BAV) aortopathy is well known in literature even if only few data exist regarding isolated supra-coronary aneurysm with normally functioning valve and root. Aim of this study is to clarify the long-term fate of bicuspid aortic root spared at the time of ascending aorta surgery.

Methods: We identified forty-seven patients (mean age, 57±11 y; range, 35-81 y, 31 males) who were treated by means of supracoronary aortic replacement in presence of normally functioning BAV and not significantly enlarged sinues of Valsalva.

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A normally functioning bicuspid aortic valve that is spared during replacement of the ascending aorta may ultimately require replacement due to structural deterioration. We report the use of transcatheter aortic valve replacement to replace a stenotic BAV 17 years following replacement of the ascending aorta.

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Optimal efficacy of interferon-free HCV retreatment after protease inhibitor failure in real life.

Clin Microbiol Infect

October 2017

Department of Experimental Medicine and Surgery, University of Rome Tor Vergata, Rome, Italy. Electronic address:

Objectives: First-generation protease-inhibitors (PIs) have suboptimal efficacy in GT-1 patients with advanced liver disease, and patients experiencing treatment failure may require urgent retreatment. Our objective was to analyse the real-life efficacy of interferon (IFN)-free retreatment after PI-failure, and the role of genotypic-resistance-testing (GRT) in guiding retreatment choice.

Methods: In this multi-centre observational study, patients retreated with IFN-free regimens after first-generation PI-failure (telaprevir-boceprevir-simeprevir) were included.

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Bone marrow histological features of sickle cell anaemia (SCA) patients during early stages and in the asymptomatic phase of the disease appear an interesting area of study, representing early-stage consequences of SCA with a close relation to its pathophysiology. Unfortunately, this field of research has never been specifically addressed before. Bone marrow biopsies from 26 consecutive Black African SCA patients (M:F=1.

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Common and well-documented HLA alleles over all of Europe and within European sub-regions: A catalogue from the European Federation for Immunogenetics.

HLA

February 2017

Population Genetics Working Group of the European Federation for Immunogenetics (EFI), EFI Central Office, Leiden, The Netherlands.

Background: A catalogue of common and well-documented (CWD) human leukocyte antigen (HLA), previously established by the American Society for Histocompatibility and Immunogenetics (ASHI), is widely used as indicator for typing ambiguities to be resolved in tissue transplantation or for checking the universality of any HLA allele in the world. However, European population samples, which are characterized by a substantial level of genetic variation, are underrepresented in the ASHI catalogue. Therefore, the Population Genetics Working Group of the European Federation for Immunogenetics (EFI) has facilitated data collection for an European CWD catalogue.

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The use of electron microscopy for the diagnosis of malignant pleural mesothelioma.

J Thorac Dis

November 2016

Anatomic Pathology, Department of Biomedicine and Prevention, Tor Vergata University of Rome, Rome, Italy;; Anatomic Pathology, Policlinic of Tor Vergata University, Rome, Italy.

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Introduction: An ongoing national multicenter survey [Italian Oncologic Pain multiSetting Multicentric Survey (IOPS-MS)] is evaluating the characteristics of breakthrough cancer pain (BTP) in different clinical settings. Preliminary data from the first 1500 cancer patients with BTP enrolled in this study are presented here.

Methods: Thirty-two clinical centers are involved in the survey.

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Voluntary movement control and execution are regulated by the influence of the cerebellar output over different interconnected cortical areas, through dentato-thalamo connections. In the present study we applied transcranial magnetic stimulation (TMS) and electroencephalography (EEG) to directly assess the effects of cerebellar theta-burst stimulation (TBS) over the controlateral primary motor cortex (M1) and posterior parietal cortex (PPC) in a group of healthy volunteers. We found a TBS-dependent bidirectional modulation over TMS-evoked activity; specifically, cTBS increased whereas iTBS decreased activity between 100 and 200 ms after TMS, in a similar manner over both M1 and PPC areas.

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Objectives: Coronary endarterectomy (CE) represents a useful adjunctive technique to coronary artery bypass grafting (CABG) in the presence of diffuse coronary artery disease. Nevertheless, the long-term patency of the graft remains unclear, and no standard anticoagulation and antiplatelet protocols exist for use after CE. The aim of this retrospective study was to evaluate and possibly to clarify the role of single (SAT) versus dual antiplatelet therapy (DAT) at mid-term follow-up.

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1000 cases of tubeless video-assisted thoracic surgery at the Rome Tor Vergata University.

Future Oncol

December 2016

Official Awake Thoracic Surgery Research Group, Department of Thoracic Surgery Tor Vergata University, Policlinic Tor Vergata University, Viale Oxford 81, 00161, Rome, Italy.

In the early 2000s, the 'Awake Thoracic Surgery Research Group' at Tor Vergata University began a program of thoracic operations in awake nonintubated patients. To our knowledge this was the first program created with this specific purpose. Since then over 1000 tubeless operations have been carried out successfully, making this series one of the widest in the world.

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Network-Based Substrate of Cognitive Reserve in Alzheimer's Disease.

J Alzheimers Dis

February 2018

Neuroimaging Laboratory, IRCCS Santa Lucia Foundation, Rome, Italy.

Cognitive reserve (CR) is known to modulate the clinical features of Alzheimer's disease (AD). This concept may be critical for the development of non-pharmacological interventions able to slow down patients' cognitive decline in the absence of disease-modifying treatments. We aimed at identifying the neurobiological substrates of CR (i.

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Stroke patients should be dispatched at the highest level of care available in the shortest time. In this context, a transportable system in specialized ambulances, able to evaluate the presence of an acute brain lesion in a short time interval (i.e.

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Spike-timing-dependent plasticity in the human dorso-lateral prefrontal cortex.

Neuroimage

December 2016

Non Invasive Brain Stimulation Unit, Department of Behavioural and Clinical Neurology, Santa Lucia Foundation IRCCS, Rome 00179, Italy; Stroke Unit, Tor Vergata Policlinic, Rome 00133, Italy. Electronic address:

Changes in the synaptic strength of neural connections are induced by repeated coupling of activity of interconnected neurons with precise timing, a phenomenon known as spike-timing-dependent plasticity (STDP). It is debated if this mechanism exists in large-scale cortical networks in humans. We combined transcranial magnetic stimulation (TMS) with concurrent electroencephalography (EEG) to directly investigate the effects of two paired associative stimulation (PAS) protocols (fronto-parietal and parieto-frontal) of pre and post-synaptic inputs within the human fronto-parietal network.

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Osteoporosis (OP) and osteoarthritis (OA) are the most common joint diseases, with a high incidence in the elderly population. OP is characterized by trabecular bone remodeling and reabsorption, whereas articular cartilage and subchondral bone remodeling are major features of OA. Although classically considered as independent or even conflicting processes, clinical coexistence of OP and OA was recently described.

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Objective: Alzheimer's disease (AD) is considered an age-related disorder. However, it is unclear whether AD induces the same pathological and neurophysiological modifications in synaptic functions independently from age of disease onset. We used transcranial magnetic stimulation tools to investigate the mechanisms of cortical plasticity and sensory-motor integration in AD patients with a wide range of disease onset.

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Retinol and its derivatives play an important role in epidermal growth and differentiation and represent chemopreventive agents in nonmelanoma skin cancer. Retinoic acid binding protein II (CRABP-II) is a cytoplasmic receptor that critically regulates all-trans-retinoic acid (ATRA) trafficking. We documented the marked reduced expression of CRABP-II and its promoter methylation in human poorly differentiated squamous cell carcinomas.

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The Cooley-Cutter prosthesis is a caged-disc mechanical heart valve introduced by Dr Cooley in the 1960s. Although the valve has been implanted worldwide in more than 3,000 patients, there is a lack of detailed data on its long-term performance, only anecdotal reports. We report the case of a patient who had undergone aortic valve replacement with a Cooley-Cutter prosthesis 39 years earlier for rheumatic disease on a tricuspid aortic valve and in whom a proximal aortic aneurysm had subsequently developed.

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Introduction: Several DNA polymorphisms have been associated with high production of fetal hemoglobin (HbF), although the molecular basis is not completely understood. In order to identify and characterize novel HbF-associated elements, we focused on five probands and their four families (from Egypt, Iraq and Iran) with thalassemia major (either β(0)-IVSII-1 or β(0)-IVSI-1) and unusual HbF elevation (>98 %), congenital or acquired after rejection of bone marrow transplantation, suggesting an anticipated favorable genetic background to high HbF expression.

Methods: Patient recruitment, genomic DNA sequencing, western blotting, electrophoretic mobility shift assays, surface plasmon resonance (SPR) biospecific interaction analysis, bioinformatics analyses based on docking experiments.

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The identification of new biomarkers and targets for tailored therapy in human colorectal cancer (CRC) onset and progression is an interesting challenge. CRC tissue produces an excess of ox-LDL, suggesting a close correlation between lipid dysfunction and malignant transformation. Lectin-like oxidized LDL receptor-1 (LOX-1) is involved in several mechanisms closely linked to tumorigenesis.

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High expression of cellular retinol binding protein-1 in lung adenocarcinoma is associated with poor prognosis.

Genes Cancer

November 2015

Anatomic Pathology, Department of Biomedicine and Prevention, Tor Vergata University of Rome, Italy; Department of Anatomic Pathology, Tor Vergata Policlinic of Rome, Italy.

Purpose: Adenocarcinoma, the most common non-small cell lung cancer is a leading cause of death worldwide, with a low overall survival (OS) despite increasing attempts to achieve an early diagnosis and accomplish surgical and multimodality treatment strategies. Cellular retinol binding protein-1 (CRBP-1) regulates retinol bioavailability and cell differentiation, but its role in lung cancerogenesis remains uncertain.

Experimental Design: CRBP-1 expression, clinical outcome and other prognostic factors were investigated in 167 lung adenocarcinoma patients.

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