Publications by authors named "Tropea F"

Background: The pharmacological association umeclidinium/vilanterol (UMEC/VI) allows to implement a very effective dual bronchodilation in chronic obstructive pulmonary disease (COPD), thus optimizing bronchodilating therapy.

Methods: The main purpose of our real-world observational study was to evaluate in COPD patients the effects of UMEC/VI on lung function and respiratory symptoms. Functional and clinical parameters were assessed at baseline, and after 52 weeks of treatment with this combined double inhaled therapy.

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Background: The small airway disease has been recognized as a central feature of chronic obstructive pulmonary disease (COPD). Triple fixed combination beclomethasone dipropionate/formoterol fumarate/glycopyrronium (BDP/FF/G) is provided as a pressurized single-dose inhaler based on an extra-fine formulation, which has been approved for patients with COPD experiencing frequent disease exacerbations.

Methods: The aim of our real-life single-center observational study was to investigate, in 22 patients with COPD, the effects of BDP/FF/G on lung function, respiratory symptoms, health status, and exacerbation rate.

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Deaths after ingestion of hydrogen peroxide (HP) are very rare, but poisoning due to consumption of HP is not uncommon. Most HP exposure involves common household-strength (3 %) HP and is usually benign. Even if it is not generally considered to be a poison, it can cause accidental death.

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Pressure ulcers (PUs) are a common problem in critically ill patients admitted to the intensive care units (ICUs) and they account for more than 70% of patients with low serum albumin at admission. The aim of this study was to test the efficacy of intravenous administration of albumin in patients with low serum albumin < 3·3 g/dl. In a 1-year period, a total of 73 patients were admitted to the ICU (males 45, 61·64% and females 28, 38·36%); of these, 21 patients were admitted with hypoalbuminaemia (serum albumin < 3·3 g/dl) and randomised into two groups: 11 patients were treated with 25 g intravenous albumin for the first 3 days within the first week of ICU stay (group A) and 10 patients did not receive albumin (group B).

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Critically ill patients are at high risk of developing pressure ulcers (PUs) and patients who develop PUs remain significantly longer in the intensive care unit (ICU) with significantly increased morbidity and mortality. Therefore, the identification of patients at truly increased risk is important. The aim of this study was to examine the association of low serum albumin present at admission in ICU patients with the onset of PUs.

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Hypoxic hepatitis (HH) is a severe complication of postoperative low output syndrome, associated with high mortality rates despite appropriate drug therapy. Recently several extracorporeal supportive techniques have become available. We describe the case of a 70-year-old woman who developed HH secondary to cardiogenic shock after cardiac surgery.

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A feasibility-phase II study was conducted to assess the cardiotoxicity of weekly trastuzumab, epirubicin, and paclitaxel in patients with human epidermal growth factor receptor-2-positive metastatic breast cancer. Untreated patients with human epidermal growth factor receptor-2-positive advanced breast cancer received trastuzumab (day 1), and epirubicin (25 mg/m2) and paclitaxel (80 mg/m2) (day 2) on a weekly basis. The rate of patients with left-ventricular ejection fraction (L-VEF) reduction greater than 10% after 12 weeks was the primary end point.

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Background: Chromogranin A (CgA) is well established as a serum marker for neuroendocrine tumours and has also been associated with some non-neuroendocrine tumours, suggesting a possible role for somatostatin analogues such as octreotide in the treatment of these tumours.

Objective: The aim of this study was to measure plasma CgA levels in patients with various non-neuroendocrine tumours in order to identify those patients who might benefit from octreotide therapy.

Methods: Plasma CgA levels were tested in 151 patients with metastatic non-neuroendocrine tumours.

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Adrenal metastases from Malignant Melanoma (MM) represent a debated therapeutical problem particularly in the case of disseminated disease. Surgical treatment, however, seems to be able to provide improvement on survival. Laparoscopic adrenalectomy is considered a gold standard procedure in benign adrenal disease but its value in malignancy, in terms of oncological effectiveness, is not known.

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Purpose: In this phase II study, we explored tolerability and activity of vinorelbine administered according to a dose-dense weekly schedule with hematopoietic growth factor support in pretreated, advanced breast cancer patients.

Patients And Methods: From January 1994 to March 1996, 40 patients with metastatic breast cancer, pretreated with at least one prior anthracycline-containing regimen, were entered into the study.

Patient Characteristics: median age 53 years (range 32-70); ECOG performance status 0-1: 34 patients, 2: 6 patients; dominant visceral metastatic disease: 15 patients, dominant non-visceral: 25; anthracycline-refractory/resistant: 2 patients, sensitive: 38 patients.

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Ras proteins are small GTPases playing a pivotal role in cell proliferation and differentiation. Their activation state depends on the competing action of GTPase Activating Proteins (GAP) and Guanine nucleotide Exchange Factors (GEF). A tryptophan residue (Trp1056 in CDC25Mm-GEF), conserved in all ras-specific GEFs identified so far has been previously shown to be essential for GEF activity.

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Background: There is increasing evidence to show the clinical implications of membrane biocompatibility in haemodialysis therapy.

Methods: We conducted a cross-over clinical study examining the clinical biocompatibility profile of three derivatised cellulosic membranes obtained by means of different modifications to the cellulose polymer (haemophan, cellulose diacetate, benzyl cellulose) in comparison to the parent polymer (cuprophan) and a reference synthetic membrane (polysulfone).

Results: In terms of leukopenia production, derivatised cellulosic membranes were generally intermediate between cuprophan and polysulfone, haemophan being more marked than the other two membranes.

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Sperm cells from control donors of proven fertility and men from barren couples were studied by conventional procedures, i.e., light microscopy as well as flow cytometry.

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In recent decades, major theoretical and technological advances have been achieved in the field of immunology. These have allowed the scientific community to analyse the immune system in a much more sophisticated manner than was possible even 20 years ago. Moreover, great theoretical changes have also occurred in gerontology-in particular, the hypothesis has been put forward that ageing and diseases are two different phenomena, and that successful ageing, i.

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CD45 is a transmembrane tyrosine-specific phosphatase which participates in lymphoid cell signal transduction during T cell activation, as well as in intrathymic negative and positive selection. In mammals, this molecule exhibits a variety of isoforms of different molecular weight, whose roles have still to be fully elucidated. We report here that apoptosis of rat thymocytes after in vitro dexamethasone and heat shock treatment was accompanied by an early significative increase of cells expressing CD45RC, the high molecular weight isoform of CD45 molecule.

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Recent reports suggest that several viruses, besides human immunodeficiency virus, induce apoptosis in infected cells. We report here that Sendai virus or Herpes simplex virus type 1 (HSV-1), two potent inducers of interferon-alpha, caused cell death in a consistent number of human peripheral blood mononuclear cells. A careful analysis of infected cells by different techniques, such as optical and electron microscopy, DNA agarose gel electrophoresis, and cytofluorimetric analysis of DNA content, showed that cell death was of apoptotic type.

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Background: Platelet-activating factor is a mediator of inflammation involved in the blood-membrane interaction. We report that selective stimulation of complement receptors (CR1 and CR3) triggers PAF synthesis and monocyte adherence to complement-activating membranes.

Methods: The synthesis of PAF was studied after stimulation of normal human adherent monocytes with F(ab)2 and Fab fragments of monoclonal antibodies specific to CR1 and CR3.

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Cells continuously exposed to genotoxic agents, such as oxygen free radicals (OFRs), deeply involved in the aging process use a variety of cellular defense mechanisms. These defense mechanisms include DNA repair enzymes, antioxidants, poly(ADP-ribosyl)polymerase (pADPRP), and stress proteins and they constitute an integrated network. An age-related failure of the efficiency of this network can affect cell proliferation and cell death, two phenomena tightly linked and regulated.

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Two hours after a single intraperitoneal injection of dexamethasone (20 micrograms/Kg b.w.) into adult male rats, a typical ladder of DNA fragments was detectable upon separation on agarose gels of DNA from thymocytes.

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The type of DNA damage and the role of poly (ADP-ribosyl) polymerase (ADPRP) and sulphated glyprotein 2 (SGP-2) in programmed cell death (apoptosis) was investigated in the following model systems: i) rat thymocytes treated with dexamethasone (DEX) eitherin vitro orin vivo; ii) human perypheral blood mononuclear cells (hPBMCs) exposed to oxygen free radicals (OR); iii) K562 cell line killed by hPBCs during spontaneous (NK) or interleukin-2 (IL-2)-induced (LAK) cytotoxic activity. The results suggest that ADPRP and SGP-2 are involved in the apoptotic process, but their role probably differs according to the type of cell and the inducing damage/stimulus. Moreover, no simple correlation appears to exist between the extent of DNA damage and cell survival or cell death.

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One hundred sixteen patients with unresectable locally advanced non-small cell lung cancer (NSCLC) were accrued in a prospective randomized trial comparing (A), chemotherapy (cisplatin and etoposide [VP-16]) for two courses plus radiation therapy (30 + 20 Gy split course), followed by an additional two courses to (B), the same regimen plus the addition of lonidamine (LND). There were 93 patients evaluable for response (46 in the chemotherapy/radiation arm and 47 in the chemotherapy/radiation/LND arm). One hundred fifteen patients were evaluable for toxicity.

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