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Fontana V, Santinelli S, Internullo M, Marinelli P, Sardo L, Alessandrini G, Borgognoni L, Ferrazza AM, Bonini M, Palange P. Effect of acetazolamide on post-NIV metabolic alkalosis in acute exacerbated COPD patients. EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES 2016; 20:37-43. [PMID: 26813451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
OBJECTIVE Non-invasive ventilation (NIV) is an effective treatment in patients with acute exacerbation of COPD (AECOPD). However, it may induce post-hypercapnic metabolic alkalosis (MA). This study aims to evaluate the effect of acetazolamide (ACET) in AECOPD patients treated with NIV. PATIENTS AND METHODS Eleven AECOPD patients, with hypercapnic respiratory failure and MA following NIV, were treated with ACET 500 mg for two consecutive days and compared to a matched control group. Patients and controls were non invasively ventilated in a bilevel positive airway pressure (BiPAP) mode to a standard maximal pressure target of 15-20 cmH2O. RESULTS ACET intra-group analysis showed a significant improvement for PaCO2 (63.9 ± 9.8 vs. 54.9 ± 8.3 mmHg), HCO3- (43.5 ± 5.9 vs. 36.1 ± 5.4 mmol/L) and both arterial pH (7.46 ± 0.06 vs. 7.41 ± 0.06) and urinary pH (6.94 ± 0.77 vs 5.80 ± 0.82), already at day 1. No significant changes in endpoints considered were observed in the control group at any time-point. Inter-group analysis showed significant differences between changes in PaCO2 and HCO3- (delta), both at day 1 and 2. Furthermore, the length of NIV treatment was significantly reduced in the ACET group compared to controls (6 ± 8 vs. 19 ± 19 days). No adverse events were recorded in the ACET and control groups. CONCLUSIONS ACET appears to be effective and safe in AECOPD patients with post-NIV MA.
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Crippa IA, Gleeson J, Fontana V, Vincent JL, Creteur J, Taccone FS. Post-mortem findings in critically ill patients treated with continuous renal replacement therapy. Intensive Care Med Exp 2015. [PMCID: PMC4796918 DOI: 10.1186/2197-425x-3-s1-a841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Villois P, Fontana V, Righy Shinotsuka C, Donadello K, Vincent JL, Creteur J, Taccone FS. Assessment of early lymphopenia after cardiac arrest. Intensive Care Med Exp 2015. [PMCID: PMC4797776 DOI: 10.1186/2197-425x-3-s1-a196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Righy Shinotsuka C, Caironi P, Villois P, Fontana V, Vincent JL, Creteur J, Taccone FS. Assessment of chloride levels on renal function after cardiac arrest. Intensive Care Med Exp 2015. [PMCID: PMC4796192 DOI: 10.1186/2197-425x-3-s1-a194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Annoni F, Orbegozo Cortés D, Irazabal M, Fontana V, Taccone FS, De Backer D, Vincent JL, Creteur J. Angiotensin converting enzymes in patients with acute respiratory distress syndrome. Intensive Care Med Exp 2015. [PMCID: PMC4798225 DOI: 10.1186/2197-425x-3-s1-a91] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Gleeson PJ, Crippa IA, Sexton DJ, Fontana V, Taccone F, Creteur J, Vincent JL. Determinants of renal recovery and mortality inpatients undergoing continuous renal replacement therapy in the ICU. Intensive Care Med Exp 2015. [PMCID: PMC4798401 DOI: 10.1186/2197-425x-3-s1-a54] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Fontana V, Villois P, Righy Shinotsuka C, Nobile L, Vincent JL, Creteur J, Taccone FS. Red cells distribution width after cardiac arrest. Intensive Care Med Exp 2015. [PMCID: PMC4798036 DOI: 10.1186/2197-425x-3-s1-a202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Bighin C, Poggio F, Dozin B, Ceppi M, Bruzzi P, D'Alonzo A, Giraudi S, Levaggi A, Lambertini M, Miglietta L, Vaglica M, Fontana V, Iacono G, Pronzato P, Del Mastro L. Outcomes of hormone-responsive (HR+) HER2 negative (HER2-) metastatic breast cancer (MBC) patients (P) according to their starting first-line (1st) treatment (T): chemotherapy (CT) or hormonal therapy (HT). Ann Oncol 2015. [DOI: 10.1093/annonc/mdv336.26] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Sanchez M, Alvarez Sedo C, Romanato M, Lo Nostro F, Calvo L, Calvo J, Fontana V. Toxic effects of endosulfan based insecticides on mammalian sperm: Evaluation of in vitro chromatin decondensation and DNA fragmentation. Toxicol Lett 2015. [DOI: 10.1016/j.toxlet.2015.08.351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Queirolo P, Spagnolo F, Picasso V, Simeone E, Grimaldi A, Curvietto M, Giorello L, Fontana V, Merlo D, Ascierto P, Bruzzi P. 3346 BeyPro1: a Phase II single-arm study for the treatment after recurrence of advanced melanoma patients harboring the V600BRAF mutation and pretreated with Vemurafenib, with the association of Vemurafenib plus Fotemustine. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)31864-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Nascimbene J, Fontana V, Spitale D. A multi-taxon approach reveals the effect of management intensity on biodiversity in Alpine larch grasslands. THE SCIENCE OF THE TOTAL ENVIRONMENT 2014; 487:110-116. [PMID: 24784735 DOI: 10.1016/j.scitotenv.2014.04.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2014] [Revised: 04/03/2014] [Accepted: 04/03/2014] [Indexed: 06/03/2023]
Abstract
In the Alps, larch grasslands form one of the most pleasing aspects of the landscape. However, their effectiveness in contributing to biodiversity conservation may depend on the intensity of their management. We used a multi-taxon approach to evaluate the effects of the intensification of management practices and those of abandonment on the biodiversity of the main autotrophic organisms hosted in this habitat, including vascular plants, bryophytes, and lichens. The study was carried out in the eastern part of South Tyrol, in the Italian Alps, where the diversity patterns of these three organismal groups were compared among intensively managed, extensively managed, and abandoned stands. The management intensity was found to strongly influence the biodiversity of the organisms, with a general pattern indicating the best conditions in extensively managed stands. Both abandonment and management intensification were detrimental to biodiversity through different mechanisms that led to species loss or to major shifts in species composition. However, the most negative effects were related to management intensification, mainly due to the high nitrogen supply, providing evidence for the increasing impact of eutrophication on Alpine environments.
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Sabbatini AR, Faria AP, Barbaro NR, Gordo WM, Modolo RGP, Pinho C, Fontana V, Moreno H. Deregulation of adipokines related to target organ damage on resistant hypertension. J Hum Hypertens 2013; 28:388-92. [PMID: 24284384 DOI: 10.1038/jhh.2013.118] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2013] [Revised: 10/10/2013] [Accepted: 10/15/2013] [Indexed: 12/31/2022]
Abstract
Resistant hypertension (RHTN) includes patients with controlled blood pressure (BP) (CRHTN) and uncontrolled BP (UCRHTN). In fact, RHTN patients are more likely to have target organ damage (TOD), and resistin, leptin and adiponectin may affect BP control in these subjects. We assessed the relationship between adipokines levels and arterial stiffness, left ventricular hypertrophy (LVH) and microalbuminuria (MA). This cross-sectional study included CRHTN (n=51) and UCRHTN (n=38) patients for evaluating body mass index, ambulatory blood pressure monitoring, plasma adiponectin, leptin and resistin concentrations, pulse wave velocity (PWV), MA and echocardiography. Leptin and resistin levels were higher in UCRHTN, whereas adiponectin levels were lower in this same subgroup. Similarly, arterial stiffness, LVH and MA were higher in UCRHTN subgroup. Adiponectin levels negatively correlated with PWV (r=-0.42, P<0.01), and MA (r=-0.48, P<0.01) only in UCRHTN. Leptin was positively correlated with PWV (r=0.37, P=0.02) in UCRHTN subgroup, whereas resistin was not correlated with TOD in both subgroups. Adiponectin is associated with arterial stiffness and renal injury in UCRHTN patients, whereas leptin is associated with arterial stiffness in the same subgroup. Taken together, our results showed that those adipokines may contribute to vascular and renal damage in UCRHTN patients.
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Roncella S, Canessa P, Franceschini M, Manta C, Dessanti P, Vigani A, Fontana V, Fedeli F, Pistillo M, Ferro P. 711 Clinical Significance of Human Mammaglobin Expression in Pleural Effusion From Patients With Negative Thoracoscopy. Eur J Cancer 2012. [DOI: 10.1016/s0959-8049(12)71407-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Parodi S, Muselli M, Carlini B, Fontana V, Haupt R, Pistoia V, Corrias MV. Restricted ROC curves are useful tools to evaluate the performance of tumour markers. Stat Methods Med Res 2012; 25:294-314. [PMID: 22735161 DOI: 10.1177/0962280212452199] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
In Clinical Epidemiology, receiver operating characteristic (ROC) analysis is a standard approach for the evaluation of the performance of diagnostic tests for binary classification based on a tumour marker distribution. The area under a ROC curve is a popular indicator of test accuracy, but its use has been questioned when the curve is asymmetric. This situation often happens when the marker concentrations overlap in the two groups under study in the range of low specificity, corresponding to a subset of values useless for classification purposes (non-informative values). The partial area under the curve at a high specificity threshold has been proposed as an alternative, but a method to identify an optimal cut-off that separates informative from non-informative values is not yet available. In this study, a new statistical approach is proposed to perform this task. Furthermore, a statistical test associated with the area under a ROC curve corresponding to informative values only (restricted ROC curve) is provided and its properties are explored by extensive simulations. Finally, the proposed method is applied to a real data set containing peripheral blood levels of six tumour markers proposed for the diagnosis of neuroblastoma. A new approach to combine couples of markers for classification purposes is also illustrated.
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Silva PS, Fontana V, Luizon MR, Lacchini R, Silva WA, Biagi C, Tanus-Santos JE. eNOS and BDKRB2 genotypes affect the antihypertensive responses to enalapril. Eur J Clin Pharmacol 2012; 69:167-77. [DOI: 10.1007/s00228-012-1326-2] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2012] [Accepted: 05/24/2012] [Indexed: 12/13/2022]
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Vigani A, Canessa PA, Manta C, Ferro P, Franceschini MC, Morabito A, Sivori M, Fontana V, Fedeli F, Pistillo MP, Roncella S. Evaluation of the prognostic significance of human mammaglobin expression in pleural effusion from patients with negative thoracoscopy. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.10534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Merlo DF, Stagi E, Fontana V, Consonni D, Gozza C, Garrone E, Bertazzi PA, Pesatori AC. A historical mortality study among bus drivers and bus maintenance workers exposed to urban air pollutants in the city of Genoa, Italy. Occup Environ Med 2010; 67:611-9. [DOI: 10.1136/oem.2009.050377] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Ceron CS, Castro MM, Rizzi E, Montenegro MF, Fontana V, Salgado MCO, Gerlach RF, Tanus-Santos JE. Spironolactone and hydrochlorothiazide exert antioxidant effects and reduce vascular matrix metalloproteinase-2 activity and expression in a model of renovascular hypertension. Br J Pharmacol 2010; 160:77-87. [PMID: 20331602 DOI: 10.1111/j.1476-5381.2010.00678.x] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND AND PURPOSE Increased oxidative stress and up-regulation of matrix metalloproteinases (MMPs) may cause structural and functional vascular changes in renovascular hypertension. We examined whether treatment with spironolactone (SPRL), hydrochlorothiazide (HCTZ) or both drugs together modified hypertension-induced changes in arterial blood pressure, aortic remodelling, vascular reactivity, oxidative stress and MMP levels and activity, in a model of renovascular hypertension. EXPERIMENTAL APPROACH We used the two-kidney,one-clip (2K1C) model of hypertension in Wistar rats. Sham-operated or hypertensive rats were treated with vehicle, SPRL (25 mg.kg(-1).day(-1)), HCTZ (20 mg.kg(-1).day(-1)) or a combination for 8 weeks. Systolic blood pressure was monitored weekly. Aortic rings were isolated to assess endothelium-dependent and -independent relaxations. Morphometry of the vascular wall was carried out in sections of aorta. Aortic NADPH oxidase activity and superoxide production were evaluated. Formation of reactive oxygen species was measured in plasma as thiobarbituric acid-reactive substances. Aortic MMP-2 levels and activity were determined by gelatin and in situ zymography, fluorimetry and immunohistochemistry. KEY RESULTS Treatment with SPRL, HCTZ or the combination attenuated 2K1C-induced hypertension, and reversed the endothelial dysfunction in 2K1C rats. Both drugs or the combination reversed vascular aortic remodelling induced by hypertension, attenuated hypertension-induced increases in oxidative stress and reduced MMP-2 levels and activity. CONCLUSIONS AND IMPLICATIONS SPRL or HCTZ, alone or combined, exerted antioxidant effects, and decreased renovascular hypertension-induced MMP-2 up-regulation, thus improving the vascular dysfunction and remodelling found in this model of hypertension.
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Perricone G, Morales MR, Polizzi C, Fontana V. [Narrative inquiries representations and self-esteem in the child affected by tumor: a pre-test pilot study]. Minerva Pediatr 2010; 62:43-50. [PMID: 20212397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
AIM The contribution reports on a pre-test pilot study, based on the single-case method (N>1 and N=1 one by one), aimed to investigate whether resilience factors regards self-narrative representation, self-esteem and their likely correlations in child suffering from tumour. METHODS The administration of specific investigation instruments (TMA - multidimensional self-esteem test, and a narrative inquiry framed on purpose) has been planned by the survey. The participating subjects set up a group of 7 children, 10 year olds, suffering from tumour. The individuation of such subjects has been carried out in terms of some "drawing variables" such as the existence of tumour, its diagnosis (12 months before commencing the research), the continuity of medical treatment and the lack of terminal stage of disease. RESULTS The study has highlighted the lack of a statistically remarkable impairment of self-narrative and self-esteem in children suffering from tumour belonging to the reference group. These levels of self-narrative and self-esteem are possible resilience factors in children suffering from tumour. CONCLUSION The acquired data about specific resilience elements in child suffering from tumor directs to research with national and international sample.
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Pesatori AC, Garte S, Popov T, Georgieva T, Panev T, Bonzini M, Consonni D, Carugno M, Goldstein BD, Taioli E, Fontana V, Stagi E, Bertazzi PA, Merlo DF. Early effects of low benzene exposure on blood cell counts in Bulgarian petrochemical workers. LA MEDICINA DEL LAVORO 2009; 100:83-90. [PMID: 19382518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
OBJECTIVES Only few studies have examined early hematological effects in human populations exposed to low benzene levels and their findings are controversial. We evaluated hematological outcomes (WBC, neutrophils, lymphocytes, monocytes, eosinophils, basophils, RBC, Hb, HCT MCV, platelets and MPV) in a population of 153 Bulgarian petrochemical workers exposed to benzene (range 0.01-23.9 ppm) and 50 unexposed subjects. METHODS Written informed consent was obtained and a self-administered questionnaire used to collect information on current smoking habits, lifestyle, and occupational activities. Exposure assessment was based on personal monitoring sampling the day before phlebotomy. Urinary trans-trans-muconic acid (t,t-MA) was determined at the beginning and end of the work shift. Based on individual airborne benzene measurements, study subjects were categorized in three exposure categories (referents, <1 and > or =1 ppm). Mean values of each hematologic outcomes in each exposure category were compared with the referent group using a multiple linear regression model adjusted for age, gender, current smoking habits and environmental toluene level. The influence of the CYP2E1 (RsaI and DraI) and NQO1 609C>T genetic polymorphisms on differential hematological parameters was also investigated. RESULTS No dose-response effect was observed for most of the examined hematological outcomes (WBC, lymphocytes, neutrophils, monocytes, RBC, Hb, HCT, MCV, platelets and MPV). The eosinophil count was inversely related to benzene exposure only among smokers. Conversely, basophils increased with increasing exposure. No effect on benzene hematotoxicity was found for any of the investigated polymorphisms. CONCLUSION In our study we did not find a decline in WBC and lymphocytes related to benzene exposure. A myeloproliferative effect of benzene is highly unlikely to explain the observed reduction in eosinophils and increase in basophils as it would lead to a concordant depression in all granulocyte subpopulations. Whether benzene effects at low doses are present in Caucasian populations remains uncertain, thus warranting further investigations.
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Bidot L, Jy W, Bidot C, Jimenez JJ, Fontana V, Horstman LL, Ahn YS. Microparticle-mediated thrombin generation assay: increased activity in patients with recurrent thrombosis. J Thromb Haemost 2008; 6:913-9. [PMID: 18363818 DOI: 10.1111/j.1538-7836.2008.02963.x] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
BACKGROUND Circulating cell-derived microparticles (MP) are important players in thrombogenesis, attributed in part to tissue factor (TF) carried on them. We developed MP-mediated thrombin generation assay (TGA) and measured a series of patients with thrombosis (TBS) and normal controls (NC). METHODS MP were isolated from plasma of 66 patients with TBS and 34 NC. The MP were resuspended in normal pooled particle-free plasma (PFP) containing corn trypsin inhibitor (to inhibit contact pathway). MP mediated TGA yields three parameters: lag time, peak and rate. This method is not influenced by anticoagulant therapy. Of the TBS patients, 41 had only a single thrombosis (S-TBS) and 25 had recurrences (R-TBS) within a 5-year period. In parallel, MP were quantitated by flow cytometry, and cell origin was determined: endothelial cells (EMP), leukocytes (LMP), red cells (RMP) and platelets (PMP). RESULTS MP from all TBS patients exhibited higher thrombin generation than NC by all three TGA parameters. R-TBS had significantly greater TGA values than S-TBS, reflected in higher peak and rate, and shorter lag time. MP numbers were also higher in TBS vs. NC, for all MP subtypes, and were significantly higher in R-TBS than S-TBS (except LMP). All MP levels correlated with thrombin generation (P < 0.0001), most closely between PMP and peak (R = 0.47) and rate (R = 0.43). CONCLUSIONS MP-mediated TGA is a novel way to assess functional procoagulant activity of MP. Enhanced MP-mediated TGA was demonstrated in TBS patients, and significantly higher activity in R-TBS. These findings support a major role of MP in thrombogenesis.
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Roncella S, Ferro P, Bacigalupo B, Pronzato P, Franceschini M, Pratticò L, Carletti A, Canessa P, Fontana V, Pistillo M, Fedeli F. Assessment of RT-PCR detection of human mammaglobin for the diagnosis of breast cancer derived pleural effusions. J Clin Oncol 2008. [DOI: 10.1200/jco.2008.26.15_suppl.1112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Fontana V, Jy W, Ahn ER, Dudkiewicz P, Horstman LL, Duncan R, Ahn YS. Increased procoagulant cell-derived microparticles (C-MP) in splenectomized patients with ITP. Thromb Res 2008; 122:599-603. [PMID: 18334267 DOI: 10.1016/j.thromres.2007.12.022] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2007] [Revised: 12/21/2007] [Accepted: 12/27/2007] [Indexed: 02/06/2023]
Abstract
BACKGROUND Splenectomy is frequently employed for therapeutic and diagnostic purposes in various clinical disorders. However its long-term safety is not well elucidated. Although risk of infection by encapsulated organisms is widely recognized, less well-known are risks of thrombosis and cardiovascular disease. METHODS We investigated levels of cell-derived microparticles (C-MP) in 23 splenectomized ITP (ITP-S) and 53 unsplenectomized ITP patients (ITP-nS). Assay of C-MP derived from platelets (PMP), leukocytes (LMP), red cells (RMP) and endothelial cells (EMP) were performed by flow cytometry. Coagulation parameters included PT, aPTT and activities of FVIII, IX and XI. Results of all measures were compared between the two groups, ITP-S vs ITP-nS. RESULTS Levels of all C-MP were higher in ITP-S than ITP-nS but only RMP and LMP reached statistical significance (p = 0.0035 and p < 0.0001, respectively). The aPTT was significantly shorter in ITP-S (p = 0.029). Interestingly, correlation analysis revealed that RMP, but not other C-MP, were associated with shortening of aPTT (p = 0.024) as well as with increased activities of factors VIII (p = 0.023), IX (p = 0.021) and XI (p = 0.0089). CONCLUSIONS RMP and LMP were significantly elevated in splenectomized compared to non-splenectomized ITP patients. This suggests that the spleen functions to clear procoagulant C-MP, and that elevation of C-MP might contribute to increased risk of thrombosis, progression of atherosclerosis and cardiovascular disease following splenectomy.
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Castagnola E, Fontana V, Caviglia I, Caruso S, Faraci M, Fioredda F, Garre ML, Moroni C, Conte M, Losurdo G, Scuderi F, Bandettini R, Toma P, Viscoli C, Haupt R. A Prospective Study on the Epidemiology of Febrile Episodes during Chemotherapy-Induced Neutropenia in Children with Cancer or after Hemopoietic Stem Cell Transplantation. Clin Infect Dis 2007; 45:1296-304. [DOI: 10.1086/522533] [Citation(s) in RCA: 181] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2007] [Accepted: 07/21/2007] [Indexed: 11/03/2022] Open
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Fontana V, Dudkiewicz P, Horstman L, Tzakis A, Ahn Y. Atypical chronic myeloid leukemia following organ transplants. Clin Transplant 2007. [DOI: 10.1111/j.1399-0012.2007.00775.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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