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Pistochini A, Rossi F, Gallo S, Pirrone C, Preti A, Gornati R, Bernardini G, Castelnuovo P. Multiple gene expression profiling suggests epithelial dysfunction in polypoid chronic rhinosinusitis. ACTA ACUST UNITED AC 2019; 39:169-177. [PMID: 31131836 PMCID: PMC6536031 DOI: 10.14639/0392-100x-2361] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Accepted: 03/13/2019] [Indexed: 12/13/2022]
Abstract
Chronic rhinosinusitis (CRS) is a heterogeneous inflammatory disorder resulting from a complex gene-environment interaction. Although its aetiology remains elusive, numerous studies reported gene expression alterations of factors apparently implicated in all aspects of the inflammatory response. However, most investigations are limited, unconfirmed analyses of a single gene. Moreover, studies concerning multiple gene expression analyses, usually on inflammatory mediators (e.g. cytokines), show contrasting outcomes in part due to use of heterogeneous samples or methodologies with limited power. In this scenario, our goal was to simultaneously evaluate the expression of a panel of selected genes (AQP5, MUC5AC, CAV1, LTF, COX2, PGDS, TNFα, TGFβ1, MGB1) potentially involved in CRS inflammatory mechanisms. While most of the samples collected were excluded from the analysis because of poor quality RNA, we were able to demonstrate statistically significant downregulation of the AQP5, CAV1, LTF, MGB1 genes in a specific subset of polypoid CRS (patients without typical comorbidities), which might suggest relevant underlying epithelial dysfunction. Further studies are needed to enrich our knowledge on the pathogenesis of CRS. Forthcoming approaches might utilise next-generation RNA sequencing and comprehensive bioinformatics analyses to better characterise the transcriptome profiles of CRS endotypes.
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Rossi F, Bevilacqua M, Busson B, Corva M, Tadjeddine A, Vizza F, Vesselli E, Bozzini B. An in situ IR-Vis Sum Frequency Generation Spectroscopy study of cyanide adsorption during zinc electrodeposition. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.113641] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Rossi F, Brault C, Hamdad F, Sevestre H, Schmit J, Duhaut P, Schmidt J. Panniculite disséminée à Mycobacterium chelonae. Rev Med Interne 2019. [DOI: 10.1016/j.revmed.2019.10.309] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Rossi F, Chan Sui Ko A, Brault C, Salle V, Gabrion A, Schmidt J, Duhaut P. L’osétomyélite qui cachait le Rendu-Osler. Rev Med Interne 2019. [DOI: 10.1016/j.revmed.2019.10.226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Signoriello E, D'Amico A, Fratta M, Ugga L, Altobelli C, Conchiglia G, Barbarulo AM, Di Pietro A, Anastasio P, Rossi F, Lus G. Alemtuzumab significantly improves posterior fossa syndrome presented as a relapse of multiple sclerosis. Mult Scler Relat Disord 2019; 38:101518. [PMID: 31778927 DOI: 10.1016/j.msard.2019.101518] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 11/07/2019] [Accepted: 11/10/2019] [Indexed: 11/30/2022]
Abstract
BACKGROUND Posterior fossa syndrome (PFS) is a rare manifestation of ponto-mesencephalic lesions frequently reported in post-surgical pediatric tumors, rarely described as a consequence of vascular, infective or inflammatory lesions. OBJECTIVE The aim of this article is to report the clinical and neuroradiological characteristics of a patient with an acute PFS presentation as a relapse in relapsing-remitting MS, significantly responsive to Alemtuzumab treatment. CASE REPORT 24-year-old patient affected by multiple sclerosis developed motor-cognitive and behavioral syndrome related to an extensive ponto-mesencephalic lesion under Fingolimod treatment. CONCLUSION Our case highlights the significant and rapid effect of Alemtuzumab therapy on both cognitive and motor symptoms occurring during a MS relapse with atypical neuroradiological localization.
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Seravalli L, Bosi M, Beretta S, Rossi F, Bersani D, Musayeva N, Ferrari C. Extra-long and taper-free germanium nanowires: use of an alternative Ge precursor for longer nanostructures. NANOTECHNOLOGY 2019; 30:415603. [PMID: 31300614 DOI: 10.1088/1361-6528/ab31cf] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
One of the challenges in the development of germanium nanowires (Ge NWs) is to increase their length beyond the 10 μm limit without enlarging the NW diameter, i.e. minimizing the tapering. Here we report how it is possible to overcome this hurdle by using isobutyl germane (iBuGe) as a metal organic precursor during MOCVD growth, instead of the commonly used germane. We have grown and characterized by transmission electron microscopy, scanning electron microscopy and Raman various samples and we have analyzed the effect of growth time, precursor flux and growth temperature on the NW length. The use of iBuGe coupled to optimized growth conditions permitted to obtain Ge NWs with lengths up to 30 μm with minimal tapering. To explain why a new precursor has this impact on the morphology of the NWs we consider two possible causes: (i) the role of carbon radicals produced by isobutyl decomposition and (ii) the reduced growth rate of Ge on the sidewalls. On the basis of Raman characterization and temperature-dependence of tapering, we conclude that the reduced tapering is probably due to lower growth rates on the sidewalls.
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Ambrosini S, Montecucco F, Akhmedov A, Mohammed SA, Brown P, Rossi F, Luscher TF, Costantino S, Paneni F. P5378The methyltransferase SETD7 promotes myocardial ischemic injury by activating Hippo signalling. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Introduction
Despite significant advances in coronary revascularization, acute myocardial infarction remains the leading cause of heart failure and death worldwide. The Hippo pathway is a master regulator of cell survival during myocardial ischemia. Upon cellular stress, activation of Hippo signaling leads to cytosolic retention and degradation of the pro-survival transcription factor YAP. Post-translational modifications, namely methylation, critically affect protein functionality in conditions of cellular stress. The SET domain-containing lysine methyltransferase 7 (SETD7) - which induces a specific mono-methylation of both histone and non-histone proteins - has recently emerged as key player in the pathogenesis of vascular disease. However, the role of SETD7 in the heart is largely unknown.
Purpose
The present study investigates whether SETD7 regulates the Hippo pathway during myocardial ischemia.
Methods
Neonatal rat ventricular myocytes (NRVM) were exposed to normal glucose levels or glucose deprivation (GD) for 15 h, in the presence of the selective SETD7 inhibitor [(R)-PFI-2] or its inactive enantiomer [(S)-PFI-2]. Western blot and real time PCR were employed to investigate the effects of energy stress on SETD7 and the Hippo pathway, while apoptosis was assessed by Caspase-3 activity assay. YAP localization was examined by confocal microscopy while its mono-methylation was assessed by immunoblotting. SETD7 knockout (SETD7−/−) mice and wild-type (WT) littermates (male, 8–12 weeks old) underwent 1 h of left anterior descending (LAD) coronary artery ligation followed by 24 h of reperfusion. Infarct size was assessed by TTC staining and shown as infarct size per ventricle surface (I/V). Cardiac function was investigated at 24h by conventional and Tissue Doppler Imaging echocardiography (Vevo 3100, Visualsonics).
Results
GD for 15h in NRVMs led to both YAP phosphorylation and mono-methylation, and subsequent cytosolic retention, as assessed by confocal microscopy. Reduced nuclear content of YAP was confirmed by downregulation of YAP-dependent pro-survival genes, namely Ctgf and Fgf2. GD-induced YAP inactivation was associated with an increase in SETD7 expression. Interestingly, pharmacological inhibition of SETD7 by (R)-PFI-2 blunted YAP mono-methylation, thus restoring nuclear retention of YAP and transcription of pro-survival genes in GD-treated NRVMs. Moreover, (R)-PFI-2 prevented NRVMs apoptosis. In line with our in vitro findings, SETD7−/− mice showed decreased infarct size as compared to WT littermates (I/V: 16.27%±2 vs. 20.54%±3, p<0.005, respectively). Consistently, cardiac function, as assessed by ejection fraction (EF: 46%±2 vs. 38%±5, p<0.001), fractional shortening (FS: 22%±1 vs. 18%±3, p<0.001) as well as by TDI, was preserved in mice lacking SETD7 as compared to WT animals.
Conclusions
Pharmacological modulation of SETD7 by (R)-PFI-2 may represent a novel therapeutic approach to prevent myocardial ischemic damage.
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Lagonegro P, Ghezzi B, Fabbri F, Trevisi G, Nasi L, Galli C, Macaluso GM, Rossi F. Titanium Dioxide Nanowires Grown on Titanium Disks Create a Nanostructured Surface with Improved In Vitro Osteogenic Potential. JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY 2019; 19:4665-4670. [PMID: 30913766 DOI: 10.1166/jnn.2019.16350] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Current biomedical research is centered on the study of nanomaterials and their effects in biological environments. In particular, there is an increasing interest on TiO₂ nanostructures for biomedical applications such as drug delivery or implant materials. In this framework, we present a Chemical Vapour Deposition process to synthesize titanium dioxide nanowires (NWs) on a commercially pure titanium substrate and we test the material In Vitro as a culture substrate for murine osteoblast-like MC3T3-E1 cells. A physical-morphological, structural and optical-characterization of the inorganic samples is performed by Electron Microscopy techniques and X-ray Diffraction, showing that a mat of crystalline rutile TiO₂ NWs is obtained over the commercial substrate. In Vitro biological tests are performed by seeding MC3T3-E1 cells on the material and studying cell morphology, the cellmaterial interface and the osteoblast gene expression. These experiments show good cell adhesion to the nano-structured surface and a higher degree of early osteoblastic differentiation compared to control titanium surfaces, indicating that the present nano-structured material has good osteogenic potential for biomedical applications.
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Arribas A, Napoli S, Gaudio E, Cascione L, Di Veroli A, Tarantelli C, Spriano F, Zucchetto A, Rossi F, Rinaldi A, Stathis A, Stussi G, Gattei V, Cruciani G, Zucca E, Rossi D, Bertoni F. MECHANISMS OF SECONDARY RESISTANCE TO IDELALISIB IN MARGINAL ZONE LYMPHOMA. Hematol Oncol 2019. [DOI: 10.1002/hon.128_2630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Esposito M, Ghirelli A, Pini S, Russo S, Zatelli G, Alpi P, Barca R, Leonulli BG, Paoletti L, Rossi F, Bastiani P. EP-1755 Implementation of EPID in vivo dosimetry for SBRT: setting tolerance levels for routine clinical use. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)32175-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Esposito M, Ghirelli A, Pini S, Russo S, Zatelli G, Alpi P, Barca R, Fondelli S, Grilli Leonulli B, Paoletti L, Rossi F, Bastani P. EP-1847 Automatic optimization of Head and Neck treatments with multicriteria radiobiological cost functions. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)32267-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Panzeri G, Muller D, Accogli A, Gibertini E, Mauri E, Rossi F, Nobili L, Magagnin L. Zinc electrodeposition from a chloride-free non-aqueous solution based on ethylene glycol and acetate salts. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2018.11.060] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Salomone G, Ricci S, Rossi F, Turazzini M, Annese V, Del Colle R, Polo A. Electrophysiological assessment of lower cranial nerve palsy triggered by spontaneous extracranial carotid dissection. Clin Neurophysiol 2019. [DOI: 10.1016/j.clinph.2018.09.070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Russo S, Esposito M, Hernandez V, Saez J, Rossi F, Paoletti L, Bastiani P, Tomatis S, Mancosu P. 3. Is DIBH VMAT in left breast related to lower plan complexity than Free Breathing? A multicenter experience. Phys Med 2018. [DOI: 10.1016/j.ejmp.2018.04.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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65
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Lastrucci A, Barucci A, Pini S, Russo S, Alpi P, Barca R, Coppola M, Fondelli S, Paoletti L, Rossi F, Bastiani P, Esposito M. 159. Evaluation of a user-guided deformable registration workflow for multi-modal (CT-MRI) prostate imaging. Phys Med 2018. [DOI: 10.1016/j.ejmp.2018.04.170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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Rossi F, Belli G, Fedeli L, Gori C, Genovese E, Cannatà V, Busoni S. 95. Pre and Post-Operative Radiation Protection in Ru-106 Opthalmic Brachytherapy. Phys Med 2018. [DOI: 10.1016/j.ejmp.2018.04.105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Pini S, Russo S, Esposito M, Paoletti L, Alpi P, Barca R, Coppola M, Fondelli S, Grilli B, Rossi F, Bastiani P. 130. Inter-fraction variability of respiratory-induced tumour motion in lung SBRT: 4D-CBCT. Phys Med 2018. [DOI: 10.1016/j.ejmp.2018.04.141] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Signoriello E, Lus G, Polito R, Casertano S, Scudiero O, Coletta M, Monaco ML, Rossi F, Nigro E, Daniele A. Adiponectin profile at baseline is correlated to progression and severity of multiple sclerosis. Eur J Neurol 2018; 26:348-355. [PMID: 30300462 DOI: 10.1111/ene.13822] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Accepted: 10/03/2018] [Indexed: 01/01/2023]
Abstract
BACKGROUND AND PURPOSE Adiponectin is a cytokine linking energy metabolism and immune system. After being assembled, adiponectin circulates as oligomers of different molecular weight, i.e. low, medium and high (HMW) molecular weight. These have the most potent biological effects. Multiple sclerosis (MS) is an autoimmune disease of the human central nervous system. The aim of this study was to characterize the expression levels of both total adiponectin and its oligomerization state in the serum from 99 patients with MS at baseline (i.e. not influenced by therapies). We also investigated the potential relationships between adiponectin and disease progression and severity. METHODS Adiponectin was quantified and visualized by enzyme-linked immunosorbent assay, western blotting and fast protein liquid chromatography. During the follow-up (3.6 ± 2.20 years), the patients were evaluated using total annualized relapse rate and Expanded Disability Status Scale score. RESULTS Total adiponectin is statistically higher in patients with MS compared with matched controls (12.18 vs. 10.02 μg/mL, P = 0.001). Interestingly, the adiponectin oligomerization state is altered in MS, with an increase of HMW oligomers. In addition, patients with MS with higher levels of adiponectin at baseline have significantly higher risk of progression and severity (Multiple Sclerosis Severity Score, 3.84 vs. 2.44, P = 0.001). No statistical difference in adiponectin expression was found between active and inactive patients with MS and among the different forms of disease. CONCLUSIONS This study demonstrated that adiponectin and its HMW oligomers are greatly involved in MS autoimmune disorder representing a potential biomarker to predict worse MS prognosis and severity. Further studies are required to clarify the molecular mechanisms underlying the properties of adiponectin and HMW oligomers in MS.
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Crippa G, Zabzuni D, Bravi E, Piva G, De Noni I, Bighi E, Rossi F. Randomized, double blind placebo-controlled pilot study of the antihypertensive effects of Grana Padano D.O.P. cheese consumption in mild - moderate hypertensive subjects. EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES 2018; 22:7573-7581. [PMID: 30468507 DOI: 10.26355/eurrev_201811_16299] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Grana Padano, an Italian protected designation of origin (PDO) semi-fat cheese, undergoes a long ripening period during which the proteolysis carried out by natural starter lactic acid bacteria releases peptides having sustained angiotensin-converting enzyme (ACE)-inhibitory activity. The length (generally 3-8 amino acid residues) and the sequence of these peptides are responsible for their ability to elicit ACE-inhibitory activity. The aim of this study has been the evaluation of the effect of a daily dietary supplement consisting in a small amount (30 g/day) of Grana Padano cheese, in terms of the lowering of the blood pressure (BP) of mild-moderate hypertensive subjects. PATIENTS AND METHODS Thirty mild-moderate hypertensive patients, with BP values not on target (> 140 and/or > 90 mmHg) after at least 3 months of stable treatment were considered in this randomized, double-blind placebo-controlled cross-over study. All patients randomly received a dietary integration (30 g/day) of Grana Padano cheese or a placebo (made from flavored grated bread mixed with fats and salts in concentrations equal to those of the cheese). BP was evaluated at baseline and at the end of the active and placebo treatments (2 months each) by: - Office BP (OBP); - Automated Office BP (AOBP) using the BpTRU®, an automated oscillometric device that provides the average of multiple (n=6) blood pressure measurements; - Ambulatory Blood Pressure (ABP) 24 hour monitoring. RESULTS Dietary integration with Grana Padano cheese resulted in a significant decrease in Office, Automated Office and Ambulatory BP. The mean decrease (vs. placebo) for 24-hour ABP was -3.5 mmHg for systolic and -2.4 mmHg for diastolic BP (p = 0.0063 and p = 0.0065, respectively). CONCLUSIONS Daily dietary integration with 30 g of Grana Padano DOP cheese effectively reduces BP and may help mild-to-moderate hypertensive patients to reach a target BP.
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Gennari M, Rossi F, Bertera A, Polvavni G, Fave AD, Rassiga C, Arlati F, Penza E, Agrifoglio M. RF70 RESULTS FROM AN IN VIVO COMPARISON OF THE OPTIFLOW AND EZ GLIDE AORTIC DISPERSION CANNULAE. J Cardiovasc Med (Hagerstown) 2018. [DOI: 10.2459/01.jcm.0000550066.34545.87] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Viana JD, Ferreira SC, Matana SR, Rossi F, Patel P, Garson JA, Rocha V, Tedder R, Mendrone-Júnior A, Levi JE. Detection of bacterial contamination in platelet concentrates from Brazilian donors by molecular amplification of the ribosomal 16S gene. Transfus Med 2018; 28:420-426. [PMID: 30304760 DOI: 10.1111/tme.12561] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2018] [Revised: 08/09/2018] [Accepted: 09/12/2018] [Indexed: 11/30/2022]
Abstract
OBJECTIVE The aim of our work was to establish a semi-automated high-throughput DNA amplification method for the universal screening of bacteria in platelet concentrates (PCs). BACKGROUND Among cases of transfusion transmission of infectious agents, bacterial contamination ranks first in the number of events, morbidity and mortality. Transmission occurs mainly by transfused PCs. Automated culture is adopted by some blood banks for screening of bacterial contamination, but this procedure is expensive and has a relatively long turnaround time. METHODS PCs were spiked with suspensions of five different bacterial species in a final concentration of 1 and 10 colony-forming units (CFU) per millilitre. After incubation, the presence of bacteria was investigated by real-time polymerase chain reaction (PCR) and by the Enhanced Bacterial Detection System (eBDS, Pall) assay as a reference method. Real-time PCR amplification was performed with a set of universal primers and probes targeting the 16S rRNA gene. Co-amplification of human mitochondrial DNA served as an internal control. RESULTS Using the real-time PCR method, it was possible to detect the presence of all bacterial species tested with an initial concentration of 10 CFU mL-1 24 h after contamination, except for Staphylococcus hominis. The PCR assay also detected, at 24 h, the presence of Serratia marcescens and Enterobacter cloacae with an initial concentration of 1 CFU mL-1 . CONCLUSIONS The real-time PCR assay may be a reliable alternative to conventional culture methods in the screening of bacterial contamination of PCs, enabling bacterial detection even with a low initial concentration of microorganisms.
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Cortellini G, Rossi F, Lippolis D, Cortellini F, Gavioli B, Ballardini G. Delayed hypersensitivity to new oral anticoagulants. Demonstration of cross reactivity for the drug category and definition of non-irritant concentrations for patch tests. Eur Ann Allergy Clin Immunol 2018; 51:38-40. [PMID: 30066999 DOI: 10.23822/eurannaci.1764-1489.71] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Summary The current therapy with direct trombin inhibitors (DTI) is indicated for the prevention of stroke in non-valvular atrial fibrillation. Side effects are reported, particularly skin hypersensitivity, for this whole category of drugs as well as for other modern antiplatelet and anticoagulant drugs. For their clinical features, these reactions appear as delayed T-cell mediated drug hypersensitivity, but at present there are no diagnostic methods of investigation. We reported a case of delayed skin reaction to edoxaban and we found the non-irritant concentration for patch test in the whole category of drugs. The patch test resulted positive for edoxaban. A successive challenge with alternative DTIs and/or a switch to warfarin is proposed as alternative therapy.
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Marchi A, Perdigão Neto L, Martins R, Rizek C, Camargo C, Moreno L, Moreno A, Batista M, Basqueira M, Rossi F, Amigo U, Guimaraes T, Levin A, Costa S. Vancomycin-resistant enterococci isolates colonizing and infecting haematology patients: clonality, and virulence and resistance profile. J Hosp Infect 2018; 99:346-355. [DOI: 10.1016/j.jhin.2017.10.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2017] [Accepted: 10/16/2017] [Indexed: 12/11/2022]
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Sagnelli C, Uberti-Foppa C, Hasson H, Bellini G, Minichini C, Salpietro S, Messina E, Barbanotti D, Merli M, Punzo F, Coppola N, Lazzarin A, Sagnelli E, Rossi F. In vivo evidence that the cannabinoid receptor 2-63 RR variant is associated with the acquisition and/or expansion of HIV infection. HIV Med 2018; 19:597-604. [PMID: 29932291 DOI: 10.1111/hiv.12638] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/01/2018] [Indexed: 12/17/2022]
Abstract
OBJECTIVES The aim of the study was to investigate whether the rs35761398 variants of the cannabinoid receptor 2 (CB2) gene may influence the acquisition of HIV infection and the clinical presentation of HIV/hepatitis C virus (HCV) coinfection. METHODS We compared 166 HIV/HCV-coinfected patients with 186 HCV-monoinfected patients, all with biopsy-proven chronic hepatitis (using the Ishak scoring system), naïve for anti-HCV treatment and tested for the CB2 rs35761398 polymorphism (using the TaqMan assay). RESULTS The HIV/HCV-coinfected patients were more frequently male (P < 0.002), were younger (P < 0.001), and had lower median BMI (P < 0.001) and HCV RNA (P < 0.05) and higher median aspartate aminotransferase (AST; P < 0.001), alanine aminotransferase (ALT; P < 0.001) and gamma glutamyl transferase (GGT; P < 0.001) levels than the HCV-monoinfected patients. The CB2 RR variant predominated in HIV/HCV-coinfected patients (45.8% vs. 31.2% in HCV-monoinfected patients; P < 0.001) and the CB2 QR variant in HCV-monoinfected patients (57.5% vs. 38.6% in HIV/HCV-coinfected patients; P < 0.00001), and the CB2 QQ variant was equally distributed. Focusing on patients with the CB2 QQ variant, the 26 HIV/HCV-coinfected patients, compared with the 21 HCV-monoinfected patients, showed less severe liver necroinflammation [lower histological activity index (HAI)] (P < 0.05). Of the patients with the CB2 RR variant, the 76 HIV/HCV-coinfected patients, compared with the 58 HCV-monoinfected patients, were more frequently male (P < 0.05), were younger (P < 0.001), and had a lower median body mass index (BMI; P < 0.001), a higher median AST level (P < 0.001), a higher mean HAI score (P < 0.05) and a higher rate of cases with severe steatosis (P = 0.05). In an analysis of variance (anova) of HCV/HIV-coinfected and HCV-monoinfected patient data, those with the CB2 RR variant (P = 0.003) and of male sex (P = 0.002) were more prevalent in the HCV/HIV-coinfected group. CONCLUSIONS There is the suggestion of a positive effect of the CB2 RR variant on HIV acquisition and/or spread, which is in accordance with previous in vitro observations.
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Rossi F, Sabattini S, Vascellari M, Marconato L. The impact of toceranib, piroxicam and thalidomide with or without hypofractionated radiation therapy on clinical outcome in dogs with inflammatory mammary carcinoma. Vet Comp Oncol 2018; 16:497-504. [PMID: 29806156 DOI: 10.1111/vco.12407] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2018] [Revised: 04/06/2018] [Accepted: 04/09/2018] [Indexed: 12/19/2022]
Abstract
In dogs, inflammatory mammary carcinoma is a clinicopathological entity characterized by rapid progression and aggressive behavior from onset of disease. Reported median survival time is short, with no effective treatment options. The aims of this prospective, noncontrolled clinical trial were to investigate outcome variables and safety profile of toceranib, thalidomide and piroxicam with or without hypofractionated radiation therapy in dogs with measurable histologically confirmed inflammatory mammary carcinoma that underwent a complete staging. Eighteen dogs were enrolled: 14 received medical treatment, and 4 were treated with hypofractionated radiation therapy and medical therapy. Overall, median time to progression was 34 days and median survival time was 109 days. In dogs treated with medical therapy, overall response rate was 21%, and clinical benefit rate (CBR) was 64%; median time to progression was 28 days and median survival time was 59 days. In dogs receiving medical therapy and undergoing radiation therapy, overall response rate and clinical benefit rate were 100%, with significantly longer time to progression (156 days) and survival time (180 days). Overall, treatment was well tolerated, with mild gastrointestinal and dermatological adverse events. Although the optimal treatment to this disease remains uncertain, the current approach consisting of systemic anti-angiogenic drugs with or without hypofractionated radiation therapy, provided clinical benefit in a significant proportion of dogs and should, therefore, be further explored.
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