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Vega ML, Dongilli R, Olaizola G, Colaianni N, Sayat MC, Pisani L, Romagnoli M, Spoladore G, Prediletto I, Montiel G, Nava S. COVID-19 pneumonia and ROX index: Time to set a new threshold for patients admitted outside the ICU. Authors' reply. Pulmonology 2021; 27:475-476. [PMID: 34334332 PMCID: PMC8321775 DOI: 10.1016/j.pulmoe.2021.07.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 07/02/2021] [Indexed: 01/21/2023] Open
Affiliation(s)
- M L Vega
- Non-Invasive Respiratory Support Unit, Hospital Juan A. Fernández, Ciudad Autónoma de Buenos Aires. Argentina; IRCCS Azienda Ospedaliera-Universitaria, Division of Respiratory and Critical Care SantOrsola Hospital, Bologna Italia
| | - R Dongilli
- Division of Respiratory Diseases with intermediate respiratory intensive care units, Central Hospital of Bolzano, Bolzano, Italy
| | - G Olaizola
- Unidad Asistencial Cesar Milstein. Ciudad Autónoma de Buenos Aires. Argentina
| | - N Colaianni
- Non-Invasive Respiratory Support Unit, Hospital Juan A. Fernández, Ciudad Autónoma de Buenos Aires. Argentina; Intensive Care Unit, Clínica Zabala, Ciudad Autónoma de Buenos Aires. Argentina
| | - M C Sayat
- Non-Invasive Respiratory Support Unit, Hospital Juan A. Fernández, Ciudad Autónoma de Buenos Aires. Argentina; Intensive Care Unit, Clínica Zabala, Ciudad Autónoma de Buenos Aires. Argentina
| | - L Pisani
- IRCCS Azienda Ospedaliera-Universitaria, Division of Respiratory and Critical Care SantOrsol Hospital, Bologna Italia. Alma Mater Studiorum University of Bologna Department of Clinical, Integrated and Experimental Medicine (DIMES), Bologna, Italy
| | - M Romagnoli
- Pulmonology Unit, Santa Maria di Ca' Foncello Hospital, Treviso, Italy
| | - G Spoladore
- Division of Infectious Diseases, Central Hospital of Bolzano, Bolzano, Italy
| | - I Prediletto
- IRCCS Azienda Ospedaliera-Universitaria, Division of Respiratory and Critical Care SantOrsol Hospital, Bologna Italia. Alma Mater Studiorum University of Bologna Department of Clinical, Integrated and Experimental Medicine (DIMES), Bologna, Italy
| | - G Montiel
- Non-Invasive Respiratory Support Unit, Hospital Juan A. Fernández, Ciudad Autónoma de Buenos Aires. Argentina
| | - S Nava
- IRCCS Azienda Ospedaliera-Universitaria, Division of Respiratory and Critical Care SantOrsol Hospital, Bologna Italia. Alma Mater Studiorum University of Bologna Department of Clinical, Integrated and Experimental Medicine (DIMES), Bologna, Italy.
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2
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Schuler S, Muench JE, Ruocco A, Balci O, Thourhout DV, Sorianello V, Romagnoli M, Watanabe K, Taniguchi T, Goykhman I, Ferrari AC, Mueller T. High-responsivity graphene photodetectors integrated on silicon microring resonators. Nat Commun 2021; 12:3733. [PMID: 34145226 PMCID: PMC8213857 DOI: 10.1038/s41467-021-23436-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Accepted: 04/14/2021] [Indexed: 02/05/2023] Open
Abstract
Graphene integrated photonics provides several advantages over conventional Si photonics. Single layer graphene (SLG) enables fast, broadband, and energy-efficient electro-optic modulators, optical switches and photodetectors (GPDs), and is compatible with any optical waveguide. The last major barrier to SLG-based optical receivers lies in the current GPDs' low responsivity when compared to conventional PDs. Here we overcome this by integrating a photo-thermoelectric GPD with a Si microring resonator. Under critical coupling, we achieve >90% light absorption in a ~6 μm SLG channel along a Si waveguide. Cavity-enhanced light-matter interactions cause carriers in SLG to reach ~400 K for an input power ~0.6 mW, resulting in a voltage responsivity ~90 V/W, with a receiver sensitivity enabling our GPDs to operate at a 10-9 bit-error rate, on par with mature semiconductor technology, but with a natural generation of a voltage, rather than a current, thus removing the need for transimpedance amplification, with a reduction of energy-per-bit, cost, and foot-print.
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Affiliation(s)
- S Schuler
- Vienna University of Technology, Institute of Photonics, Vienna, Austria
- Cambridge Graphene Centre, University of Cambridge, Cambridge, UK
| | - J E Muench
- Cambridge Graphene Centre, University of Cambridge, Cambridge, UK
| | - A Ruocco
- Cambridge Graphene Centre, University of Cambridge, Cambridge, UK
| | - O Balci
- Cambridge Graphene Centre, University of Cambridge, Cambridge, UK
| | - D van Thourhout
- Ghent University-IMEC, Photonics Research Group, Gent, Belgium
| | - V Sorianello
- Consorzio Nazionale per le Telecomunicazioni and Inphotec, Pisa, Italy
| | - M Romagnoli
- Consorzio Nazionale per le Telecomunicazioni and Inphotec, Pisa, Italy
| | - K Watanabe
- National Institute for Materials Science, Tsukuba, Japan
| | - T Taniguchi
- National Institute for Materials Science, Tsukuba, Japan
| | - I Goykhman
- Cambridge Graphene Centre, University of Cambridge, Cambridge, UK
- Technion-Israel Institute of Technology, Haifa, Israel
| | - A C Ferrari
- Cambridge Graphene Centre, University of Cambridge, Cambridge, UK.
| | - T Mueller
- Vienna University of Technology, Institute of Photonics, Vienna, Austria.
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3
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Marconi S, Giambra MA, Montanaro A, Mišeikis V, Soresi S, Tirelli S, Galli P, Buchali F, Templ W, Coletti C, Sorianello V, Romagnoli M. Photo thermal effect graphene detector featuring 105 Gbit s -1 NRZ and 120 Gbit s -1 PAM4 direct detection. Nat Commun 2021; 12:806. [PMID: 33547318 PMCID: PMC7864989 DOI: 10.1038/s41467-021-21137-z] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 01/13/2021] [Indexed: 01/30/2023] Open
Abstract
One of the main challenges of next generation optical communication is to increase the available bandwidth while reducing the size, cost and power consumption of photonic integrated circuits. Graphene has been recently proposed to be integrated with silicon photonics to meet these goals because of its high mobility, fast carrier dynamics and ultra-broadband optical properties. We focus on graphene photodetectors for high speed datacom and telecom applications based on the photo-thermo-electric effect, allowing for direct optical power to voltage conversion, zero dark current, and ultra-fast operation. We report on a chemical vapour deposition graphene photodetector based on the photo-thermoelectric effect, integrated on a silicon waveguide, providing frequency response >65 GHz and optimized to be interfaced to a 50 Ω voltage amplifier for direct voltage amplification. We demonstrate a system test leading to direct detection of 105 Gbit s-1 non-return to zero and 120 Gbit s-1 4-level pulse amplitude modulation optical signals.
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Affiliation(s)
- S. Marconi
- grid.263145.70000 0004 1762 600XTecip Institute – Scuola Superiore Sant’Anna, Pisa, Italy
| | - M. A. Giambra
- Photonic Networks and Technologies Lab – CNIT, Pisa, Italy
| | - A. Montanaro
- Photonic Networks and Technologies Lab – CNIT, Pisa, Italy
| | - V. Mišeikis
- grid.25786.3e0000 0004 1764 2907Center for Nanotechnology Innovation @NEST - Istituto Italiano di Tecnologia, Pisa, Italy ,grid.25786.3e0000 0004 1764 2907Graphene Labs, Istituto Italiano di Tecnologia, Genova, Italy
| | - S. Soresi
- Photonic Networks and Technologies Lab – CNIT, Pisa, Italy ,Fondazione INPHOTEC, Pisa, Italy
| | - S. Tirelli
- Photonic Networks and Technologies Lab – CNIT, Pisa, Italy ,Fondazione INPHOTEC, Pisa, Italy
| | - P. Galli
- Nokia Solutions and Networks Italia, Vimercate, Italy
| | - F. Buchali
- grid.425792.fNokia Bell Labs, Stuttgart, Germany
| | - W. Templ
- grid.425792.fNokia Bell Labs, Stuttgart, Germany
| | - C. Coletti
- grid.25786.3e0000 0004 1764 2907Center for Nanotechnology Innovation @NEST - Istituto Italiano di Tecnologia, Pisa, Italy ,grid.25786.3e0000 0004 1764 2907Graphene Labs, Istituto Italiano di Tecnologia, Genova, Italy
| | - V. Sorianello
- Photonic Networks and Technologies Lab – CNIT, Pisa, Italy
| | - M. Romagnoli
- Photonic Networks and Technologies Lab – CNIT, Pisa, Italy
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Figus M, Carpineto P, Romagnoli M, Ferretti C, Di Antonio L, Nardi M. Optical Coherence Tomography Findings of Incomplete Posterior Vitreoschisis with Vitreomacular Traction Syndrome and Impending Macular Hole: A Case Report. Eur J Ophthalmol 2018; 18:147-9. [DOI: 10.1177/112067210801800127] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Purpose Vitreomacular traction syndrome is a clinical entity characterized by partial posterior vitreous detachment in combination with persistent macular adherence. Recently, optical coherence tomography (OCT) allowed visualization of incomplete posterior vitreoschisis leading to vitreomacular traction. Methods The authors report on a 57-year-old woman with blurred vision in her left eye. Results OCT scan showed incomplete posterior vitreoschisis with vitreomacular traction syndrome and impending macular hole in her left eye. Conclusions The intraoperative findings together with the evidence that the internal limiting membrane (ILM) thickness is thinner than the axial resolution of the Stratus OCT (8 μm) and a spontaneous ILM detachment has never been demonstrated are likely to support the hypothesis that posterior vitreoschisis exists and can be associated with vitreomacular traction syndrome.
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Affiliation(s)
- M. Figus
- Neurosciences Department, Ophthalmology, University of Pisa, University “G. D'Annunzio” Chieti-Pescara - Italy
| | - P. Carpineto
- Department of Medicine and Aging Sciences, Section of Ophthalmology, University “G. D'Annunzio” Chieti-Pescara - Italy
| | - M. Romagnoli
- Neurosciences Department, Ophthalmology, University of Pisa, University “G. D'Annunzio” Chieti-Pescara - Italy
| | - C. Ferretti
- Neurosciences Department, Ophthalmology, University of Pisa, University “G. D'Annunzio” Chieti-Pescara - Italy
| | - L. Di Antonio
- Department of Medicine and Aging Sciences, Section of Ophthalmology, University “G. D'Annunzio” Chieti-Pescara - Italy
| | - M. Nardi
- Neurosciences Department, Ophthalmology, University of Pisa, University “G. D'Annunzio” Chieti-Pescara - Italy
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Grassi A, Nitri M, Moulton SG, Marcheggiani Muccioli GM, Bondi A, Romagnoli M, Zaffagnini S. Does the type of graft affect the outcome of revision anterior cruciate ligament reconstruction? a meta-analysis of 32 studies. Bone Joint J 2017; 99-B:714-723. [PMID: 28566389 DOI: 10.1302/0301-620x.99b6.bjj-2016-0929.r2] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Accepted: 02/16/2017] [Indexed: 01/02/2023]
Abstract
AIMS Our aim was to perform a meta-analysis of the outcomes of revision anterior cruciate ligament (ACL) reconstruction, comparing the use of different types of graft. MATERIALS AND METHODS A search was performed of Medline and Pubmed using the terms "Anterior Cruciate Ligament" and "ACL" combined with "revision", "re-operation" and "failure". Only studies that reported the outcome at a minimum follow-up of two years were included. Two authors reviewed the papers, and outcomes were subdivided into autograft and allograft. Autograft was subdivided into hamstring (HS) and bone-patellar tendon-bone (BPTB). Subjective and objective outcome measures were analysed and odds ratios with confidence intervals were calculated. RESULTS A total of 32 studies met the inclusion criteria. Five studies used HS autografts, eight reported using BPTB autografts, two used quadriceps tendon autografts and eight used various types. Seven studies reported using allografts, while the two remaining used both BPTB autografts and allografts. Overall, 1192 patients with a mean age of 28.7 years (22.5 to 39) and a mean follow-up of 5.4 years (2.0 to 9.6) were treated with autografts, while 269 patients with a mean age of 28.4 years (25 to 34.6) and a mean follow-up of 4.0 years (2.3 to 6.0) were treated with allografts. Regarding allografts, irradiation with 2.5 mrad was used in two studies while the graft was not irradiated in the seven remaining studies. Reconstructions following the use of autografts had better outcomes than those using allograft with respect to laxity, measured by KT-1000/2000 (MEDmetric Corporation) and the rates of complications and re-operations. Those following the use of allografts had better mean Lysholm and Tegner activity scores compared with autografts. If irradiated allografts were excluded from the analysis, outcomes no longer differed between the use of autografts and allografts. Comparing the types of autograft, all outcomes were similar except for HS grafts which had better International Knee Documentation Committee scores compared with BPTB grafts. CONCLUSION Autografts had better outcomes than allografts in revision ACL reconstruction, with lower post-operative laxity and rates of complications and re-operations. However, after excluding irradiated allografts, outcomes were similar between autografts and allografts. Overall, the choice of graft at revision ACL reconstruction should be on an individual basis considering, for instance, the preferred technique of the surgeon, whether a combined reconstruction is required, the type of graft that was previously used, whether the tunnels are enlarged and the availability of allograft. Cite this article: Bone Joint J 2017;99-B:714-23.
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Affiliation(s)
- A Grassi
- Orthopedic Institute Rizzoli, 90011 Bologna, Italy
| | - M Nitri
- Orthopedic Institute Rizzoli, Via di Barbiano 1/10, 40136 Bologna, Italy
| | - S G Moulton
- Oregon Health & Science University, 3181 SW, Sam Jackson Park Rd, Portland, Oregon, USA
| | | | - A Bondi
- Orthopedic Institute Rizzoli, 90011 Bologna, Italy
| | - M Romagnoli
- Orthopedic Institute Rizzoli, 90011 Bologna, Italy
| | - S Zaffagnini
- Orthopedic Institute Rizzoli, 90011 Bologna, Italy
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Sorianello V, Contestabile G, Midrio M, Pantouvaki M, Asselbergs I, Van Campenhout J, Huyghebaerts C, D'Errico A, Galli P, Romagnoli M. Chirp management in silicon-graphene electro absorption modulators. Opt Express 2017; 25:19371-19381. [PMID: 29041131 DOI: 10.1364/oe.25.019371] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2017] [Accepted: 07/19/2017] [Indexed: 06/07/2023]
Abstract
We study the frequency chirp properties of graphene-on-silicon electro-absorption modulators (EAMs). By experimentally measuring the chirp of a 100 µm long single layer graphene EAM, we show that the optoelectronic properties of graphene induce a large positive linear chirp on the optical signal generated by the modulator, giving rise to a maximum shift of the instantaneous frequency up to 1.8 GHz. We exploit this peculiar feature for chromatic-dispersion compensation in fiber optic transmission thanks to the pulse temporal lensing effect. In particular, we show dispersion compensation in a 10Gb/s transmission experiment on standard single mode fiber with temporal focusing distance (0-dB optical-signal-to-noise ratio penalty) of 60 km, and also demonstrate 100 km transmission with a bit error rate largely lower than the conventional Reed-Solomon forward error correction threshold of 10-3.
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7
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De Fine M, Romagnoli M, Toscano A, Bondi A, Nanni M, Zaffagnini S. Is there a role for femoral offset restoration during total hip arthroplasty? A systematic review. Orthop Traumatol Surg Res 2017; 103:349-355. [PMID: 28159679 DOI: 10.1016/j.otsr.2016.12.013] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Revised: 12/16/2016] [Accepted: 12/29/2016] [Indexed: 02/02/2023]
Abstract
UNLABELLED Benefits of femoral offset restoration during total hip arthroplasty should be the reduction of bearing surfaces wear, implant loosening and dislocation rates. Modular neck stems ensure offset customization but fretting corrosion and catastrophic failures are well-documented complications. Since clinical evidences are needed to substantiate the effectiveness of femoral offset restoration and promote modular neck choice, we systematically reviewed the literature to ascertain whether femoral offset itself has a proven clinical influence: (1) on bearing surfaces wear, (2) implant loosening, (3) and dislocation rates. A systematic literature screening was conducted to find papers dealing with the influence of femoral offset on wear, dislocation and loosening, including articles with conventional radiographic femoral offset assessment and with comparative design. Observational studies, case reports, instructional course lectures, cadaveric and animal studies as well as biomechanical studies, letters to the editor, surgical techniques or technical notes were all excluded. No limits about publication date were supplied but only papers in English were taken into account. Data were extracted into an anonymous spreadsheet. Offset values, dislocation rates, wear rates, follow-up and surgical approaches were all detailed. Ten manuscripts were finally selected. A statistically significant correlation between femoral offset restoration and the reduction of conventional ultrahigh-molecular-weight polyethylene wear was found in two out of three papers investigating this issue, but no correlations were found between femoral offset and dislocation rates or implant loosening. Femoral offset modification influences ultrahigh-molecular-weight polyethylene liners wear, but no correlation was found with dislocation rates or implant loosening. Advantages on wear can be counterbalanced by the use of hard bearing surfaces or highly cross-linked polyethylene liners, besides the availability of larger femoral heads improving implant stability further reduces the importance of femoral offset restoration by means of modularity. We believe that efforts in restoring femoral offset during total hip arthroplasty do not translate into tangible clinical profits and consequently, we do not advise the routinely usage of modular neck stems in total hip arthroplasty. LEVEL OF EVIDENCE level III, systematic review of case-control studies.
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Affiliation(s)
- M De Fine
- General Orthopaedic Surgery, Rizzoli-Sicilia Department, Rizzoli Orthopaedic Institute, SS 113, km 246, 90011, Bagheria (PA), Italy.
| | - M Romagnoli
- General Orthopaedic Surgery, Rizzoli-Sicilia Department, Rizzoli Orthopaedic Institute, SS 113, km 246, 90011, Bagheria (PA), Italy
| | - A Toscano
- General Orthopaedic Surgery, Rizzoli-Sicilia Department, Rizzoli Orthopaedic Institute, SS 113, km 246, 90011, Bagheria (PA), Italy
| | - A Bondi
- General Orthopaedic Surgery, Rizzoli-Sicilia Department, Rizzoli Orthopaedic Institute, SS 113, km 246, 90011, Bagheria (PA), Italy
| | - M Nanni
- General Orthopaedic Surgery, Rizzoli-Sicilia Department, Rizzoli Orthopaedic Institute, SS 113, km 246, 90011, Bagheria (PA), Italy
| | - S Zaffagnini
- General Orthopaedic Surgery, Rizzoli-Sicilia Department, Rizzoli Orthopaedic Institute, SS 113, km 246, 90011, Bagheria (PA), Italy
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Sorianello V, De Angelis G, Cassese T, Midrio M, Romagnoli M, Moshin M, Otto M, Neumaier D, Asselberghs I, Van Campenhout J, Huyghebaert C. Complex effective index in graphene-silicon waveguides. Opt Express 2016; 24:29984-29993. [PMID: 28059383 DOI: 10.1364/oe.24.029984] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We report for the first time and characterize experimentally the complex optical conductivity of graphene on silicon photonic waveguides. This permits us to predict accurately the behavior of photonic integrated devices encompassing graphene layers. Exploiting a Si microring add/drop resonator, we show the effect of electrical gating of graphene on the complex effective index of the waveguide by measuring both the wavelength shift of the resonance and the change in the drop peak transmission. Due to electro-refractive effect of graphene a giant (>10-3) change in the effective index is demonstrated for the first time on Si photonics waveguides and this large effect will crucially impact performances and consumption of Si photonics devices. We confirmed the results by two independent experiments involving two different gating schemes: Si gating through the ridge waveguide, and polymer-electrolyte gating. Both the experiments demonstrate a very large phase effect in good agreement with numerical calculations. The reported results validate the Kubo model for the case of graphene-Si photonics interfaces and for propagation in this type of waveguide. This is fundamental for the next design and fabrication of future graphene-silicon photonics devices.
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Velha P, Sorianello V, Preite MV, De Angelis G, Cassese T, Bianchi A, Testa F, Romagnoli M. Wide-band polarization controller for Si photonic integrated circuits. Opt Lett 2016; 41:5656-5659. [PMID: 27973482 DOI: 10.1364/ol.41.005656] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A circuit for the management of any arbitrary polarization state of light is demonstrated on an integrated silicon (Si) photonics platform. This circuit allows us to adapt any polarization into the standard fundamental TE mode of a Si waveguide and, conversely, to control the polarization and set it to any arbitrary polarization state. In addition, the integrated thermal tuning allows kilohertz speed which can be used to perform a polarization scrambler. The circuit was used in a WDM link and successfully used to adapt four channels into a standard Si photonic integrated circuit.
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Abstract
Among the nonpharmacological therapies, pulmonary rehabilitation (PR) is particularly appropriate for patients with chronic respiratory impairment who, despite any optimal drug management, are still symptomatic and experience restriction in every day activities. Pulmonary rehabilitation performed in inpatient, outpatient, or home settings demonstrates short–and long–term clinical efficacy. Although disease severity does not inherently dictate candidacy for exercise training, the degree of physiological and functional impairment may influence setting in which the training should occur. Therefore, inpatient rehabilitation is generally best–suited for the most sick and most disabled patients. The overall results from the literature confirm that the inpatient setting for a PR program is a feasible option and does not necessarily result in higher direct costs when balanced against duration and effectiveness in terms of improved outcomes.
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Affiliation(s)
- E M Clini
- Fondazione Villa Pineta and University of Modena-Reggio Emilia, Department of Pulmonary Rehabilitation, Pavullo, Italy.
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11
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Sorianello V, De Angelis G, De Iacovo A, Colace L, Faralli S, Romagnoli M. High responsivity SiGe heterojunction phototransistor on silicon photonics platform. Opt Express 2015; 23:28163-28169. [PMID: 26561087 DOI: 10.1364/oe.23.028163] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We report on a novel near infrared SiGe phototransistor fabricated by a standard silicon photonics foundry. The device is first investigated by simulations. The fabricated devices are characterized in terms of current-voltage characteristics at different optical power. Typical phototransistors exhibit 1.55µm record responsivity at low optical power exceeding 232A/W and 42A/W at 5V and 1V bias, respectively. A differential detection scheme is also proposed for the dark current cancellation to significantly increase the device sensitivity.
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12
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Alis R, Ibañez-Sania S, Basterra J, Sanchis-Gomar F, Romagnoli M. Effects of an acute high-intensity interval training protocol on plasma viscosity. J Sports Med Phys Fitness 2015; 55:647-653. [PMID: 24921613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
AIM High-intensity interval training (HIT) is an exercise model that has been seen to cause similar muscle adaptations and improvements in exercise performance to other traditional exercise models. This study aimed to examine the effects of low-volume HIT exercise on plasma viscosity (PV). METHODS Ten healthy male subjects (25.80±3.39 years) randomly performed a HIT running protocol (2-min warm up at 8 km/h, 5x2-min bouts at 90% maximal heart rate, separated by 2-min at 8 km/h, finished with another 2-min period at 8 km/h) or an aerobic (AER) running exercise (60'at 55% VO2max). Blood samples were drawn before and after exercise, and after 30-minute recovery. PV, hematocrit (Hct), fibrinogen, total proteins, triglycerides, total-cholesterol and glucose levels were analyzed. Plasma volume loss during exercise was calculated. RESULTS PV rose after HIT (P<0.05) while Hct rose after both protocols. Plasma volume loss was higher after HIT (-6.35±3.47%) than after AER (-3.11±2.49%) (P=0.045). Total-proteins (P<0.001), triglycerides (P=0.013), total-cholesterol (P<0.001) and glucose (P=0.001) concentrations increased after HIT. After AER no statistically significant differences were found in plasma constituents concentrations. CONCLUSION A low-volume HIT session causes a sufficient loss in plasma volume that leads to significantly incremented plasma constituents' concentrations and, therefore, a mild transient rise in PV.
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Affiliation(s)
- R Alis
- Universitary Research Institute "Dr. Viña Giner", Molecular and Mitochondrial Medicine, Catholic University of Valencia "San Vicente Mártir", Valencia, Spain -
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13
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Pestalozza G, Romagnoli M, Tessitore E. Incidence and risk factors of acute otitis media and otitis media with effusion in children of different age groups. Adv Otorhinolaryngol 2015; 40:47-56. [PMID: 3291570 DOI: 10.1159/000415672] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- G Pestalozza
- Divisione di Otorinolaringoiatria, Ospedale dei Bambini V. Buzzi, Milano, Italia
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14
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Alis R, Sanchis-Gomar F, Primo-Carrau C, Lozano-Calve S, Dipalo M, Aloe R, Blesa JR, Romagnoli M, Lippi G. Hemoconcentration induced by exercise: Revisiting the Dill and Costill equation. Scand J Med Sci Sports 2014; 25:e630-7. [PMID: 25557039 DOI: 10.1111/sms.12393] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/13/2014] [Indexed: 11/30/2022]
Abstract
The Dill and Costill equation is used to estimate the exercise-induced hemoconcentration. However, this calculation requires drawing an extra whole-blood sample, which cannot be frozen and has to be analyzed with dedicate instrumentation in a relative short time. The aim of the present study was to explore the usefulness of some serum biochemical parameters to estimate hemoconcentration induced by exhaustive exercise. Fourteen healthy male subjects (19-34 years) performed a15-min running test at 110% of anaerobic threshold speed. Hemoglobin, hematocrit, brain natriuretic peptide (BNP), creatinine, gamma-glutamyltransferase (GGT), total-proteins, albumin, total calcium (Ca), K(+), Na(+), and Cl(-) were determined in blood samples taken before, after exercise, and after a 30-min recovery period. Plasma volume loss (ΔPV) was calculated by Dill and Costill equation. At post-exercise and after recovery, the percentage increments of total-proteins, albumin, GGT and Ca correlated significantly with ΔPV. Bland-Altman analyses showed that correcting BNP, creatinine, and K(+) concentration by Ca percentage increments yield biases and limits of agreement that are acceptable when compared with Dill and Costill equation correction. Ca concentration may be used as a hemoconcentration biomarker in high-intensity exercise, which would allow scientists and physicians avoid extra costs, facilitate in-field research, and delayed estimation of hemoconcentration using stored serum samples.
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Affiliation(s)
- R Alis
- Research Institute "Dr. Viña Giner," Molecular and Mitochondrial Medicine, Catholic University of Valencia San Vicente Mártir, Valencia, Spain.,School of Medicine, Catholic University of Valencia San Vicente Mártir, Valencia, Spain
| | - F Sanchis-Gomar
- Research Institute "Dr. Viña Giner," Molecular and Mitochondrial Medicine, Catholic University of Valencia San Vicente Mártir, Valencia, Spain.,Department of Physiology, University of Valencia, Valencia, Spain.,Fundación Investigación Hospital Clínico Universitario/INCLIVA, Valencia, Spain
| | - C Primo-Carrau
- Research Institute "Dr. Viña Giner," Molecular and Mitochondrial Medicine, Catholic University of Valencia San Vicente Mártir, Valencia, Spain
| | - S Lozano-Calve
- Research Institute "Dr. Viña Giner," Molecular and Mitochondrial Medicine, Catholic University of Valencia San Vicente Mártir, Valencia, Spain
| | - M Dipalo
- Laboratory of Clinical Chemistry and Hematology, Academic Hospital of Parma, Parma, Italy
| | - R Aloe
- Laboratory of Clinical Chemistry and Hematology, Academic Hospital of Parma, Parma, Italy
| | - J R Blesa
- Research Institute "Dr. Viña Giner," Molecular and Mitochondrial Medicine, Catholic University of Valencia San Vicente Mártir, Valencia, Spain.,School of Medicine, Catholic University of Valencia San Vicente Mártir, Valencia, Spain
| | - M Romagnoli
- Research Institute "Dr. Viña Giner," Molecular and Mitochondrial Medicine, Catholic University of Valencia San Vicente Mártir, Valencia, Spain.,Department of Physical Education and Sports, University of Valencia, Valencia, Spain
| | - G Lippi
- Laboratory of Clinical Chemistry and Hematology, Academic Hospital of Parma, Parma, Italy
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Conti V, Grazia M, Romagnoli M, Poletti G, Cristino S, Ciliberti G, Piciucchi S, Mosconi G, Poletti V. Lung injury associated with mTOR inhibitors (sirolimus and everolimus). MINERVA UROL NEFROL 2014; 66:283-285. [PMID: 25531195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Affiliation(s)
- V Conti
- Department of Medical Sciences, Research Centre on Asthma and COPD, University of Ferrara, Ferrara, Italy -
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16
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Alis R, Sanchis-Gomar F, Ferioli D, La Torre A, Blesa JR, Romagnoli M. Exercise effects on erythrocyte deformability in exercise-induced arterial hypoxemia. Int J Sports Med 2014; 36:286-91. [PMID: 25429547 DOI: 10.1055/s-0034-1394395] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Exercise-induced arterial hypoxemia (EIAH) is often found in endurance-trained subjects at high exercise intensity. The role of erythrocyte deformability (ED) in EIAH has been scarcely explored. We aimed to explore the role of erythrocyte properties and lactate accumulation in the response of ED in EIAH. ED was determined in 10 sedentary and in 16 trained subjects, both before and after a maximal incremental test, and after recovery, along with mean corpuscular volume (MCV) and red blood cell lactate concentrations. EIAH was found in 6 trained subjects (∆SaO2=-8.25±4.03%). Sedentary and non-EIAH trained subjects showed reduced ED after exercise, while no effect on ED was found in EIAH trained subjects. After exercise, lactate concentrations rose and MCV increased equally in all groups. ED is strongly driven by cell volume, but the different ED response to exercise in EIAH shows that other cellular mechanisms may be implicated. Interactions between membrane and cytoskeleton, which have been found to be O2-regulated, play a role in ED. The drop in SaO2 in EIAH subjects can improve ED response to exercise. This can be an adaptive mechanism that enhances muscular and pulmonary perfusion, and allows the achievement of high exercise intensity in EIAH despite lower O2 arterial transport.
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Affiliation(s)
- R Alis
- Research Universitary Institute Dr. Viña Giner, Molecular and Mitochondrial Medicine, Catholic University of Valencia San Vicente Mártir, Valencia, Spain
| | - F Sanchis-Gomar
- Research Universitary Institute Dr. Viña Giner, Molecular and Mitochondrial Medicine, Catholic University of Valencia San Vicente Mártir, Valencia, Spain
| | - D Ferioli
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milano, Italy
| | - A La Torre
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milano, Italy
| | - J R Blesa
- Research Universitary Institute Dr. Viña Giner, Molecular and Mitochondrial Medicine, Catholic University of Valencia San Vicente Mártir, Valencia, Spain
| | - M Romagnoli
- Research Universitary Institute Dr. Viña Giner, Molecular and Mitochondrial Medicine, Catholic University of Valencia San Vicente Mártir, Valencia, Spain
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17
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Parisi E, Genestreti G, Romeo A, Romagnoli M, Burgio M, Ghigi G, Arpa D, Sarnelli A, Tesei A, Polico R. Accelerated Hypofractionated Radiation Therapy Plus Chemotherapy for Inoperable Locally Advanced Lung Cancer: Final Results of Long-Term Follow-up. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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18
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Abstract
The discovery of irisin as a novel and promising peptidic hormone for the treatment of obesity and diabetes has recently been reported. As a result, great hopes have been raised based on this finding, hypothesizing that irisin might provide additional benefits, not only for obesity and diabetes, but also for a wide range of pathological conditions requiring therapeutical and clinical attention. However, controversial results and conclusions on circulating irisin concentrations and correlations with other variables, including its role in metabolism, have recently been reported. Although laboratory assessment of irisin by ELISA is easily available and may provide interesting information for therapeutics and clinical practice, the heterogeneous and often discrepant results published so far, raise serious concerns about its measurement, indicating that it may still not be ready for use or whether irisin really exists. We highlight here some aspects on these discrepancies and contradictions, and put forward their implications.
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Affiliation(s)
- F Sanchis-Gomar
- Department of Physiology, Faculty of Medicine, University of Valencia, Fundación Investigación Hospital Clínico Universitario/INCLIVA, Valencia, Spain
| | - R Alis
- University Research Institute "Dr. Viña Giner", Molecular and Mitochondrial Medicine, Catholic University of Valencia "San Vicente Mártir", Valencia, Spain
| | - H Pareja-Galeano
- Department of Physiology, Faculty of Medicine, University of Valencia, Fundación Investigación Hospital Clínico Universitario/INCLIVA, Valencia, Spain
| | - M Romagnoli
- University Research Institute "Dr. Viña Giner", Molecular and Mitochondrial Medicine, Catholic University of Valencia "San Vicente Mártir", Valencia, Spain
| | - C Perez-Quilis
- Department of Physiology, Faculty of Medicine, University of Valencia, Fundación Investigación Hospital Clínico Universitario/INCLIVA, Valencia, Spain
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Ting A, Lehman N, Cardenes N, Kocyildirim E, Romagnoli M, Mroz L, Carceres E, Tedrow J, Bermudez C, Rojas M. The use of human bone marrow stem cells reduces endotoxin-induced lung injury in sheep. Cytotherapy 2014. [DOI: 10.1016/j.jcyt.2014.01.306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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20
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Schieffer K, Tan K, Stamper P, Somogyi A, Andrea S, Wakefield T, Romagnoli M, Chapin K, Wolk D, Carroll K. Multicenter evaluation of the Sepsityper™ extraction kit and MALDI-TOF MS for direct identification of positive blood culture isolates using the BD BACTEC™ FX and VersaTREK®
diagnostic blood culture systems. J Appl Microbiol 2014; 116:934-41. [DOI: 10.1111/jam.12434] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2013] [Revised: 12/17/2013] [Accepted: 12/31/2013] [Indexed: 12/22/2022]
Affiliation(s)
| | - K.E. Tan
- Johns Hopkins University; Baltimore MD USA
| | | | | | | | | | | | - K.C. Chapin
- Rhode Island Hospital; Providence RI USA
- Brown University; Providence RI USA
| | - D.M. Wolk
- University of Arizona; Tucson AZ USA
- Geisinger Health System; Danville PA USA
| | - K.C. Carroll
- The Johns Hopkins Hospital; Baltimore MD USA
- Johns Hopkins University; Baltimore MD USA
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Stella GM, Romagnoli M, Balestro E. Idiopathic pulmonary fibrosis clustering based on cilium gene expression: profiling a new paradigm. Minerva Med 2014; 105:9-15. [PMID: 24619019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Idiopathic pulmonary fibrosis (IPF), the commonest form of the interstitial lung diseases identifies a specific form of chronic, progressive fibrosing interstitial pneumonia, occurring primarily in older adults, and limited to the lungs. IPF represents an unsolved health problem with an urgent medical need due to lack of effective therapies. Although precise IPF etiology remains elusive, during the past decade there has been a shift away from the pathogenetic theory of generalized inflammation progressing to a paradigm of disordered fibroproliferation and alveolar epithelial cell function. A better understanding of the molecular mechanisms driving IPF fibroblasts proliferation is mandatory to provide insights into the pathogenesis, and to identify highly reproducible biomarkers for disease onset and progression. In this review we aim to discuss and analyze the findings recently published by Yang et al. on Thorax, which reported a strong molecular signature as-sociated with the expression of cilium genes that divides IPF/ usual interstitial pneumonia into two subtypes, one with increased cilium gene expression and one with low expression of cilium genes. The study presents a number of methodology limitations, mainly related to samples characterization and to a general overstatement of the conclusions from class clustering analysis. Nevertheless, the study clearly demonstrates ‑ for the first time ‑ that the cilium apparatus is activated in microscopic honeycombing. In such setting, cilia are likely to act as signaling "machine" which cooperates in promoting proliferative and regenerative cellular processes. Although preliminary, these results sustain a rationale to develop further investigations to confirm the impact of cilium gene expression in IPF with the final perspective of therapeutic intervention.
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Affiliation(s)
- G M Stella
- Laboratory of Biochemistry and Genetics, Pulmonology Unit, Department of Molecular Medicine, University and Fondazione IRCCS, Policlinico San Matteo di Pavia, Pavia, Italy -
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22
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Parisi E, Romeo A, Ghigi G, Burgio M, Neri E, Taurchini M, Romagnoli M, Sarnelli A, Arienti C, Polico R. Tomotherapy in the Treatment of Malignant Pleural Mesothelioma. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.1390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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23
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Tomassetti S, Ruy JH, Gurioli C, Ravaglia C, Buccioli M, Tantalocco P, Decker PA, Cavazza A, Dubini A, Agnoletti V, Gurioli C, Casoni GL, Romagnoli M, Poletti V. The effect of anticoagulant therapy for idiopathic pulmonary fibrosis in real life practice. Sarcoidosis Vasc Diffuse Lung Dis 2013; 30:121-127. [PMID: 24071883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 08/21/2013] [Indexed: 06/02/2023]
Abstract
BACKGROUND IPF is a common form of interstitial lung disease for which there is no effective therapy and usually results in death. Two previous contradictory studies showed anticoagulant therapy to be associated with both improved and worsened survival, respectively. OBJECTIVE The objective of this retrospective cohort study was to evaluate the effect of anticoagulant therapy on the survival and disease progression of patients with idiopathic pulmonary fibrosis (IPF) in real clinical practice. METHODS We compared the clinical characteristics, time to disease progression, incidence of acute exacerbation, and survival of 25 (20%) IPF patients receiving anticoagulant therapy to the remaining 97 IPF patients not receiving anticoagulant therapy. In addition we conducted a sensitivity analysis using as comparator a group of 25 patients matched by age, sex, functional impairment, cardiac comorbidities and pulmonary hypertension. RESULTS Patients on anticoagulant therapy had a worse 1- and 3-year survival (84% and 53% versus 89% and 64% in the non-anticoagulant group, respectively), a difference that persisted after adjusting for age and comorbidities (hazard ratio 3.1 - 95% confidence interval, 1.4 to 7.0; p=0.006) and after comparison with the matched group (adjusted HR=4.8, 95% CI: 1.8-12.8; p=0.002). IPF patients on anticoagulant therapy had a shorter interval to disease progression ( 0.7 years versus 1.6 years, adjusted HR 2.2 -95% CI, 0.96 to 5.1; p=0.063) confirmed also in the analysis with matched subgroups (HR=2.7 (95% CI: 1.2-6.5); p=0.023). The incidence of acute exacerbations did not differ in the two groups (22% versus 23%). Two patients (8%) experienced anticoagulant treatment related complications and included an episode of hemorrhagic shock. CONCLUSION In this retrospective study patients treated with anticoagulants had a worse survival and a shorter interval to disease progression. This support the recent finding that warfarin worsen the respiratory status and survival of IPF patients.
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Cenni F, Leardini A, Pieri M, Berti L, Belvedere C, Romagnoli M, Giannini S. Functional performance of a total ankle replacement: thorough assessment by combining gait and fluoroscopic analyses. Clin Biomech (Bristol, Avon) 2013. [PMID: 23177657 DOI: 10.1016/j.clinbiomech.2012.10.008] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND A thorough assessment of patients after total ankle replacement during activity of daily living can provide complete evidence of restored function in the overall lower limbs and replaced ankle. This study analyzes how far a possible restoration of physiological mobility in the replaced ankle can also improve the function of the whole locomotor apparatus. METHODS Twenty patients implanted with an original three-part ankle prosthesis were analyzed 12 months after surgery during stair climbing and descending. Standard gait analysis and motion tracking of the components by three-dimensional fluoroscopic analysis were performed on the same day using an established protocol and technique, respectively. FINDINGS Nearly physiological ankle kinematic, kinetic and electromyography patterns were observed in the contralateral side in both motor activities, whereas these patterns were observed only during stair climbing in the operated side. Particularly, the mean ranges of flexion at the replaced ankle were 13° and 17° during stair climbing and descending, respectively. Corresponding 2.1 and 3.1mm antero/posterior meniscal-to-tibial translations were correlated with flexion between the two metal components (p<0.05). In addition, a larger tibiotalar flexion revealed by fluoroscopic analysis resulted in a physiological hip and knee moment. INTERPRETATION The local and global functional performances of these patients were satisfactory, especially during stair climbing. These might be associated to the recovery of physiological kinematics at the replaced ankle, as also shown by the consistent antero/posterior motion of the meniscal bearing, according to the original concepts of this ankle replacement design.
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Affiliation(s)
- F Cenni
- Movement Analysis Laboratory, Istituto Ortopedico Rizzoli, Bologna, Italy.
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25
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Ravaglia C, Gurioli C, Romagnoli M, Casoni G, Tomassetti S, Gurioli C, Poletti V. Sarcoidosis and autoimmune thyroid disease. Pneumologie 2012. [DOI: 10.1055/s-0032-1329835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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26
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Ravaglia C, Gurioli C, Romagnoli M, Casoni G, Tomassetti S, Gurioli C, Poletti V. Sarcoidosis is a frequent benign cause of lymphadenopathy in neoplastic patients. Pneumologie 2012. [DOI: 10.1055/s-0032-1329836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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27
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Boccaccini D, Maioli M, Cannio M, Dlouhy I, Romagnoli M, Leonelli C, Boccaccini A. A lifetime prediction method based on Cumulative Flaw Length Theory. Ann Ital Chir 2012. [DOI: 10.1016/j.jeurceramsoc.2011.11.042] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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28
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Ravaglia C, Gurioli C, Casoni G, Romagnoli M, Tomassetti S, Gurioli C, Corso RM, Poletti G, Dubini A, Marinou A, Poletti V. Diagnostic role of rapid on-site cytologic examination (ROSE) of broncho-alveolar lavage in ALI/ARDS. Pathologica 2012; 104:65-69. [PMID: 22953502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023] Open
Abstract
BACKGROUND While bronchoscopy should be considered in patients with acute lung injury (ALI) and acute respiratory distress syndrome (ARDS) in which the cause cannot be determined from history or clinical and laboratory data, there are no studies about the utility of rapid on-site examination (ROSE) of broncho-alveolar lavage for identification, as early as possible, of the pathological condition underlying the onset of this condition. The aim of this prospective, observational study was to evaluate the diagnostic role of ROSE of BAL in ALI/ARDS. METHODS 71 patients with ALI/ARDS underwent bronchoalveolar lavage, and one part of the sample was examined with ROSE. The on-site report was categorized as diagnostic (specific diagnosis), presence of atypical reactive type II pneumocytes with no further comments or not diagnostic. RESULTS ROSE of bronco-alveolar lavage yielded 29 (41%) specific diagnoses, revealed typical features of diffuse alveolar damage without a specific diagnosis in 28 patients (39%) and did not reveal a specific diagnosis in the remaining 14 cases (20%). CONCLUSIONS The results of this study show that, in patients with ALI/ARDS, bronchoalveolar lavage with ROSE is diagnostic in 40% of cases: ROSE may therefore spare lung biopsies and improve the prognosis of patients with ARDS (immunocompetent or not) as therapy could be started or modified at a very early phase.
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Affiliation(s)
- C Ravaglia
- Department of Diseases of the Thorax, Pulmonology Unit, Morgagni-Pierantoni Hospital, Forli, Italy
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Margaritopoulos GA, Romagnoli M, Poletti V, Siafakas NM, Wells AU, Antoniou KM. Recent advances in the pathogenesis and clinical evaluation of pulmonary fibrosis. Eur Respir Rev 2012; 21:48-56. [DOI: 10.1183/09059180.00007611] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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30
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Ingelmo PM, Parini R, Grimaldi M, Mauri F, Romagnoli M, Tagliabue G, Somaini M, Sahillioğlu E, Frawley G. Multidetector computed tomography (MDCT) for preoperative airway assessment in children with mucopolysaccharidoses. Minerva Anestesiol 2011; 77:774-780. [PMID: 21730924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
BACKGROUND Accumulation of glycosaminoglycans is known to cause significant problems in the anesthetic management of children with mucopolysaccharidoses (MPS). Clinical and standard radiological evaluation may convey insufficient information about the upper airway and trachea in children with MPS. Multidetector computed tomography (MDCT) images have been used to define the central airway and previous studies have recommended this tool to assess the airway of children who are considered at risk of difficult intubation. However, MDCT has not been recommended in MPS children. The aim of this clinical scenario study was to verify whether information from MDCT reconstruction of the airway is useful in airway management planning of children with MPS. METHODS In a two phase questionnaire-based study, 26 pediatric anesthesiologists were asked to produce airway management plans for 5 children with MPS. An initial plan for airway control was reported after assessment of standard preoperative anesthetic charts. A subsequent airway strategy was then described after reviewing tracheal MDCT images of each patient. RESULTS MDCT images provided additional clinically-relevant information in 87% (95% CI: 79-92%) of the evaluations. Reduction of tracheal size was the most common finding provided by the MDCT images. After reviewing the MDCT images, anesthesiologists changed their primary airway device selection in 21% of the evaluations (P=0.01). CONCLUSION Airway reconstruction using MDCT images from a previous CT scan may provide a useful assessment tool for preoperative airway evaluation and planning in MPS children.
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Affiliation(s)
- P M Ingelmo
- First Service of Anesthesia and Intensive Care, San Gerardo Hospital, Monza, Italy.
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31
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Casoni GL, Chilosi M, Romagnoli M, Tomassetti S, Poletti V. Another "chance" for interferon gamma 1b? Sarcoidosis Vasc Diffuse Lung Dis 2011; 28:79-80. [PMID: 21796896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
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32
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Affiliation(s)
- V Poletti
- Dipartimento di Malattie del Torace, Ospedale Morgagni-Pierantoni, Forlì, Italy.
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33
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Gurioli C, Casoni GL, Gurioli C, Tomassetti S, Romagnoli M, Ravaglia C, Poletti V. Endobronchial ultrasound in Dieulafoy's disease of the bronchus: an additional application of EBUS. Monaldi Arch Chest Dis 2011; 73:166-8. [PMID: 21434565 DOI: 10.4081/monaldi.2010.287] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Dieulafoy's disease is a rare vascular malformation represented by an abnormally enlarged submucosal arterial vessel. This malformation is mostly found in gastrointestinal tract causing spontaneous bleeding although a few cases have been described in the bronchial tree. Recognizing Dieulafoy's malformation is crucial for the bronchoscopist in order to avoid biopsy that can lead to a massive hemoptysis, sometimes fatal. In this case report we show the clinical utility of endobronchial ultrasound (EBUS) in the evaluation of bronchial alteration suspicious for Dieulafoy's malformation.
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Affiliation(s)
- C Gurioli
- Interventional Pulmonology Unit, Department of Thoracic Diseases, P.L. Pierantoni, G.B. Morgagni Hospital, Via Carlo Forlanini 34, 47100, Forlì, Italy
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Tomassetti S, Carloni A, Chilosi M, Maffè A, Ungari S, Sverzellati N, Gurioli C, Casoni G, Romagnoli M, Gurioli C, Ravaglia C, Poletti V. Pulmonary features of Birt-Hogg-Dubé syndrome: cystic lesions and pulmonary histiocytoma. Respir Med 2011; 105:768-74. [PMID: 21356586 DOI: 10.1016/j.rmed.2011.01.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2010] [Revised: 12/24/2010] [Accepted: 01/04/2011] [Indexed: 10/18/2022]
Abstract
BACKGROUND to describe clinical, radiologic and pathologic features of lung lesions in Birt-Hogg-Dubè syndrome (BHDS) (MIM 135150). METHOD review of 12 patients of BHDS from 3 unrelated Italian families evaluated at GB Morgagni Hospital, Forlì, from 2005 to 2010. RESULTS mean age (±SD) at diagnosis was 44.6 (±16) years, 8 (66%) were male. All three index cases presented with a history of recurrent pneumothorax and/or cystic lung lesions evaluated by CT scan request by referring pulmonary physicians, none were diagnosed to have BHDS at the time of initial pulmonary evaluation. One of the three cases was a middle-aged female patient with a clinical phenotype indistinguishable from lymphangioleiomyomatosis (LAM), characterized by cystic lung lesions and kidney angiomyolipoma. In one case of BHDS presenting with recurrent pneumothorax and a solitary lung nodule, surgical lung resection revealed a pulmonary histiocytoma. In one case a novel mutation of BHD gene was detected (c.771 del, exon 7). CONCLUSIONS BHDS is associated with cystic lung disease largely under-recognized by pulmonary physicians and can mimic LAM and may be associated with lung tumor, pulmonary histiocytoma. In one case we found a novel mutation in exon 7, c.771 del (ref.seq. NM_144997.5) never reported before.
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Affiliation(s)
- S Tomassetti
- Pulmonary Medicine, GB Morgagni Hospital, Forlì, Italy
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35
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Romagnoli M, Nannini C, Piciucchi S, Girelli F, Gurioli C, Casoni G, Ravaglia C, Tomassetti S, Gurioli C, Gavelli G, Carloni A, Dubini A, Cantini F, Chilosi M, Poletti V. Idiopathic nonspecific interstitial pneumonia: an interstitial lung disease associated with autoimmune disorders? Eur Respir J 2011; 38:384-91. [PMID: 21273390 DOI: 10.1183/09031936.00094910] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Recent evidence suggests that idiopathic nonspecific interstitial pneumonia (iNSIP) is a distinct clinical entity amongst other idiopathic interstitial pneumonias, and some data seem to suggest a possible pathogenetic role of autoimmunity. The aim of the present study was to assess if iNSIP might represent an early lung manifestation of an autoimmune disease. After initial review of cases found in the medical records database by searching for the term "NSIP" (n = 63), 37 iNSIP cases were identified, and were re-evaluated using a dynamic integrated multidisciplinary approach. 27 cases with iNSIP were selected for the study. Mean ± sd age at first respiratory symptom was 54.2 ± 8 yrs, 70% were females, and 59% were never-smokers. At follow-up (mean ± sd 59.7 ± 29 months, range 12-138 months), autoimmune diseases occurred in 14 (52%) patients, with seven (26%) cases of autoimmune thyroiditis, six (22%) of undifferentiated connective tissue disease and three (11%) of connective tissue disease. Patients developing autoimmune diseases were older and more frequently never-smoking females. In >50% of patients diagnosed with iNSIP, evidence of autoimmune diseases develops within 2 yrs, suggesting a probable link between the clinical entity of iNSIP and autoimmune disorders.
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Affiliation(s)
- M Romagnoli
- Department of Pulmonology, Ospedale GB Morgagni, Forlì, Italy
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Romagnoli M, Belguise K, Wang X, Sonenshein GE. Abstract P4-06-14: Induction of Blimp-1 in Breast Cancer Cells Is Mediated by Activator Protein-1 and Promotes Transforming Growth Factor (TGF)-ß-Induced Epithelial-to-Mesenchymal Transition. Cancer Res 2010. [DOI: 10.1158/0008-5472.sabcs10-p4-06-14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
The vast majority of breast cancers has been shown to display aberrant constitutive expression of NF-kB subunits, which enhances their mobility and promotes their survival and malignancy. Recently, we demonstrated that the RelB NF-kB subunit promotes migration of breast cancer cells, in part via repression of estrogen receptor (ER)α transcription. Furthemore, we showed that inhibition of the ERα promoter was mediated by the zinc finger transcriptional repressor B lymphocyte-induced maturation protein (Blimp-1), transcribed from the PRDM1 gene, which is induced by RelB-mediated activation of a Bcl-2/Ras pathway. Indeed, we showed for the first time that Blimp-1 is present in breast cancer and is more highly expressed in ERα negative breast cancer cells where it plays an essential role in their migratory and invasive abilities. Blimp-1 is a well-known zinc finger repressor, which is critical for terminal differentiation of B and T cells and for migration of primordial germ cells. Here we have examined the mechanism of activation of Blimp-1 expression in breast cancer cells. Given the role of Ras to c-Raf signaling in migration of cancer cells, we tested the role of this downstream mediator. A constitutively active c-Raf led to induction of Blimp-1 in breast cancer lines while a dominant negative variant reduced its levels. RelB/p52 NF-kB complexes induced c-Jun, c-Fos, Fra-1 and Fra-2 Activator Protein-1 (AP-1) subunits, which activated the PRDM1 gene promoter. The transforming growth factor (TGF)-β induces a more mesenchymal phenotype of breast cancer cells. Treatment of NMuMG breast epithelial cells with TGF-β led to Blimp-1 activation through AP-1 and epithelial-to-mesenchymal transition (EMT). Importantly, Blimp-1 knockdown counteracted TGF-mediated EMT and wound healing in both NMuMG and MDA-MB-231 breast cells. Thus, activation of AP-1 complexes via a Ras/Raf/Erk signaling pathway mediates induction of PRDM1 gene transcription and Blimp-1 expression in ERα negative breast cancer cells, which is essential for TGF-β-induced mesenchymal phenotype. Therefore, downstream mediators of Blimp-1 activity might emerge as new therapeutic targets for treatment of patients with ERα negative breast cancer.
Citation Information: Cancer Res 2010;70(24 Suppl):Abstract nr P4-06-14.
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Affiliation(s)
- M Romagnoli
- Tufts University School of Medicine, Boston, MA; INSERM U896, Montpellier, France; John Hopkins School of Medicine, Baltimore, MD
| | - K Belguise
- Tufts University School of Medicine, Boston, MA; INSERM U896, Montpellier, France; John Hopkins School of Medicine, Baltimore, MD
| | - X Wang
- Tufts University School of Medicine, Boston, MA; INSERM U896, Montpellier, France; John Hopkins School of Medicine, Baltimore, MD
| | - GE. Sonenshein
- Tufts University School of Medicine, Boston, MA; INSERM U896, Montpellier, France; John Hopkins School of Medicine, Baltimore, MD
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Piciucchi S, Romagnoli M, Chilosi M, Bigliazzi C, Dubini A, Beomonte Zobel B, Gavelli G, Carloni A, Poletti V. Prospective evaluation of drug-induced lung toxicity with high-resolution CT and transbronchial biopsy. Radiol Med 2010; 116:246-63. [PMID: 21311994 DOI: 10.1007/s11547-010-0608-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2009] [Accepted: 05/06/2010] [Indexed: 01/15/2023]
Abstract
PURPOSE This study compared the results of high-resolution computed tomography (HRCT) and cytohistology after transbronchial biopsy in the evaluation of drug-related interstitial lung disease (DR-ILD). MATERIALS AND METHODS Patients with a clinical and imaging diagnosis of DR-ILD were prospectively included in a study protocol lasting 5 years. All patients were evaluated by bronchoscopy with transbronchial biopsy or bronchoalveolar lavage (BAL) following an HRCT examination that raised a suspicion of DR-ILD. Two radiologists (one senior and one junior), unaware of the diagnosis, reported the single HRCT findings, their distribution and predominant pattern. In the event of disagreement, the diagnosis was subsequently reached by consensus. Cytohistological examination was considered the gold standard in the diagnosis of DR-ILD. Patients who were unable to undergo the endoscopic procedure were excluded from the study. RESULTS The study included 42 patients (25 men, 17 women; age range 20-84 years). Transbronchial biopsy was performed in all but four patients (one case of alveolar haemorrhage and three cases of lipoid pneumonia) in whom the diagnosis was established with BAL. Assessment of the HRCT images revealed the following patterns: noncardiogenic pulmonary oedema (n=13); organising pneumonia (OP) (n=9); hypersensitivity pneumonitis (HP) (n=2); alveolar haemorrhage (AH) (n=2); nonspecific interstitial pneumonia (NSIP) (n=5); lipoid pneumonia (LP) (n=1); sarcoid-like pattern (n=1). Cytohistological diagnosis revealed diffuse alveolar damage (DAD) in 11 patients, OP in seven, HP in three, AH in three, chronic interstitial pneumonia (CIP) in eight, LP in three and pseudosarcoidosis in one. Subdivision of the drugs into antineoplastic and nonantineoplastic agents showed that the most common patterns were CIP (n=6), DAD (n=2) and OP (n=2) in the antineoplastic group and DAD (n=9) and OP (n=5) in the nonantineoplastic group. Sensitivity and specificity of the radiological analysis was excellent, especially for patterns such as OP and DAD (sensitivity 0.86 and specificity 0.88 for OP; sensitivity 1 and specificity 0.93 for DAD). CONCLUSIONS HRCT demonstrated excellent sensitivity and specificity. In cases in which its specificity was low, HRCT was nonetheless useful for biopsy planning and clinical-radiological monitoring after discontinuation of the drug treatment.
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Affiliation(s)
- S Piciucchi
- Area di Radiologia, IRST-Istituto Romagnolo Studio e cura dei Tumori, Meldola, Forlì, Italy.
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Romagnoli M, Poletti V. Multifocal fibrosclerosis with lung, mediastinal, pancreatic and retroperitoneal involvement in a 58-year-old man. Sarcoidosis Vasc Diffuse Lung Dis 2009; 26:73-75. [PMID: 19960792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Affiliation(s)
- M Romagnoli
- Interventional Pulmonology, Department of Thoracic Diseases, Forlì, Italy
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Romagnoli M, Bigliazzi C, Casoni G, Chilosi M, Carloni A, Dubini A, Gurioli C, Tomassetti S, Gurioli C, Poletti V. The role of transbronchial lung biopsy for the diagnosis of diffuse drug-induced lung disease: a case series of 44 patients. Sarcoidosis Vasc Diffuse Lung Dis 2008; 25:36-45. [PMID: 19070259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
At present, no studies have evaluated the role of bronchoscopic transbronchial lung biopsy (TBLB) in the diagnosis of diffuse drug-induced lung disease (DILD), and there is no consensus for a definite diagnostic workup approach for this rare clinical entity. The aim of the present study was to evaluate the clinical usefulness of TBLB in diffuse DILD. This study was a retrospective analysis of patients with diffuse DILD, who underwent bronchoscopy. The role of TBLB was assessed to determine whether the histological results are useful for the final diagnosis. Over a 5-yr period, 44 patients underwent bronchoscopy, and all had a bronchoalveolar lavage (BAL). Thirty-three of the 44 patients underwent TBLB (75%), and the results of TBLB were diagnostically helpful in 25 (75.7%) of the procedures. No histopathologic abnormality was identified in 6 (18%) of the 33 patients. In 2 patients (6%) the obtained samples were not adequate, since no lung parenchyma was obtained. No severe complications related to bronchoscopic procedures occurred. In conclusion, TBLB is a safe procedure, and is diagnostically helpful in the majority of cases of patients with diffuse DILD. Histological data obtained by TBLB further corroborate clinical, laboratory, radiologic and BAL results for a definitive diagnosis of diffuse DILD.
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Affiliation(s)
- M Romagnoli
- Interventional Pulmonology, Department of Thoracic Diseases, Pierantoni-Morgagni Hospital, Forlì, Italy
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Vayá A, Todolí J, Calvo J, Romagnoli M, Ricart JM. Haemorheological profile in patients with systemic sclerosis. Clin Hemorheol Microcirc 2008; 40:243-248. [PMID: 19029648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The relationship between rheological alterations and systemic sclerosis (SSc) is not well established. We have determined in 27 patients with SSc (4 male, 21 female ) aged 59 +/- 14 years and in a well matched control group the whole rheological profile, i.e. blood viscosity (BV), plasma viscosity (PV), erythrocyte aggregation (EA), erythrocyte deformability (ED) along with fibrinogen (Fbg), C-reactive protein (CRP), lipids, and erythrocyte indices. Patients show higher Fbg, PV and EA (P<0.01) and lower ED (P<0.01). A negative significant correlation was found between ED and inflammation markers, both CRP (P<0.05) and Fbg (P<0.01), indicating that decreased ED seems to be related to inflammatory changes at microcirculatory levels. In addition, patients with anticentromere antibodies show significantly lower ED than those without (P<0.05). The clinical significance of this observation needs to be clarified, deserving further research.
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Affiliation(s)
- Amparo Vayá
- Haemorheology and Thrombosis Unit, Department of Clinical Pathology, La Fe University Hospital, Valencia, Spain.
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Affiliation(s)
- Amparo Vayá
- Haemorheology and Thrombosis Unit, Department of Clinical Pathology, La Fe University Hospital, Valencia, Spain
| | - José Todolí
- Internal Medicine Service, La Fe University Hospital, Valencia, Spain
| | - Javier Calvo
- Rheumatology Service, General Hospital, Valencia, Spain
| | - M. Romagnoli
- Haemorheology and Thrombosis Unit, Department of Clinical Pathology, La Fe University Hospital, Valencia, Spain
| | - Jose M. Ricart
- Dermatology Service, La Fe University Hospital, Valencia, Spain
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Giannini S, Buda R, Faldini C, Vannini F, Romagnoli M, Grandi G, Bevoni R. The treatment of severe posttraumatic arthritis of the ankle joint. J Bone Joint Surg Am 2007; 89 Suppl 3:15-28. [PMID: 17908868 DOI: 10.2106/jbjs.g.00544] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- S Giannini
- Department of Orthopaedic Surgery, University of Bologna, Italy.
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Abstract
In this prospective, randomized, controlled study, we compared the performance of conventional and navigated total knee arthroplasties. Component alignment was measured in 60 patients operated on using navigation and in 60 patients operated on using the conventional technique. The groups then were divided into a subpopulation to measure alignments of the distal femoral cuts in the three anatomic planes, the proximal tibial cut in the frontal and sagittal planes, and the resulting lower limb mechanical axis in the frontal plane. Postoperative weightbearing long-view radiographs were evaluated as were clinical results using three standard questionnaires at 28 months followup. The intraoperative measurements (mean +/- standard deviation) at the resection planes showed navigated surgeries result in more accurate alignments than conventional surgeries for the femur: in the frontal plane, 0.1 degrees +/- 0.9 degrees and 0.7 degrees +/- 1.6 degrees valgus, respectively; in the sagittal plane, 1.1 degrees +/- 1.8 degrees and 2.8 degrees +/- 2.0 degrees flexion; and in the transversal plane, 0.1 degrees +/- 1.2 degrees and 0.9 degrees +/- 1.7 degrees internal rotation. The navigated technique also reduced the number of cases with final mechanical axes greater than 3 degrees from 20.0% to 1.7%. Postoperative radiographs showed better component alignment using navigation, particularly at the femur. However, clinical scoring systems showed this radiographic improvement did not necessarily result in a better clinical outcome at short-term followup.
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Affiliation(s)
- A Ensini
- Department of Orthopaedic Surgery, University of Bologna, Italy.
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Romagnoli M, Caramori G, Braccioni F, Ravenna F, Barreiro E, Siafakas NM, Vignola AM, Chanez P, Fabbri LM, Papi A. Near-fatal asthma phenotype in the ENFUMOSA Cohort. Clin Exp Allergy 2007; 37:552-7. [PMID: 17430352 DOI: 10.1111/j.1365-2222.2007.02683.x] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND Near-fatal asthma (NFA) is characterized by severe asthma attacks usually requiring intensive care unit admission. This phenotype of asthma has been studied mainly in acute conditions. METHODS The aim of our study was to compare the clinical, functional and inflammatory characteristics of NFA patients with mild to severe asthmatics in stable conditions. We recruited 155 asthmatic patients from five centres of the European Network for Understanding Mechanisms of Severe Asthma: 67 patients with mild-to-moderate asthma controlled by low/medium doses of inhaled corticosteroids; 64 with severe asthma that, despite treatment with high doses of inhaled corticosteroids, long-acting beta2-agonists and for 1/3 also with regular oral corticosteroids, had at least one asthma exacerbation in the previous year; 24 with an NFA episode in the previous 5 years in the absence of inclusion criteria for the previous groups. All the patients were examined in stable conditions. RESULTS NFA patients were taking less corticosteroids and were less compliant to prescribed asthma medications than the other two groups of patients. Lung function, blood gases, atopic status, sputum and blood inflammatory cell count of NFA patients were similar to mild-to-moderate, but not severe, asthmatic patients. CONCLUSIONS In stable conditions patients with an NFA attack in the previous 5 years cannot be distinguished from patients with mild-to-moderate asthma, while they are different from severe asthmatics both in terms of lung function and of airway inflammation. The risk factor that characterizes this group of patients is reduced usage of prophylactic corticosteroids.
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Affiliation(s)
- M Romagnoli
- Research Centre on Asthma and COPD, University of Ferrara, Ferrara, Italy, and Department of Respiratory Diseases, University Hospital, INSERM U454, Montpellier, France
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Abstract
Survivin is a fascinating member of the inhibitor of apoptosis protein (IAP) family with its dual roles in mitosis and apoptosis, and emerges as an attractive target for cancer therapy. Multiple myeloma (MM) is a plasma cell malignancy, characterized by deregulated proliferation, cell-death processes and fatal outcome. We thus investigated survivin expression in myeloma cells and its role in MM biology to evaluate its potential interest as a target in MM treatment. Our results describe the cancer-specific overexpression of survivin in myeloma cells and show a significant correlation between survivin expression at protein level and clinical course of MM. Moreover, survivin knockdown by RNA interference led to growth rate inhibition of myeloma cells related to apoptosis induction and deep cell-cycle disruption. Finally, survivin knockdown sensitized myeloma cells to conventional anti-myeloma agents. Altogether, these data argue for the interest to evaluate survivin antagonists in MM treatment.
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Affiliation(s)
- M Romagnoli
- 1INSERM, UMR 601, 9 quai Moncousu, Nantes, F-44093, France
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Perossini M, Turio E, Perossini T, Romagnoli M, Benedetti S, Cei G, Barachini P, Nardi M. Pattern VEP alterations in psoriatic patients may indicate a sub clinic optic neuritis. Doc Ophthalmol 2006; 110:203-7. [PMID: 16328928 DOI: 10.1007/s10633-005-4830-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/28/2005] [Indexed: 10/25/2022]
Abstract
We examined 44 subject (Group A) of both sexes (27 males and 17 females) aging between 16 and 80 (average: 45+/-16.6), divided into age bands, affected by mild-medium psoriasis with PASI (psoriasis area and severity index) between 1.2 and 48.6 (average: 11.2+/-9.7) without any other disease and we performed pattern transient VEP (Visual Evoked Potential) at the frequencies usually used in clinical experience (73', 36', 18' check size). For a good statistic comparison we choose 55 healthy subjects (group B) divided into age bands on which we performed the same test. Comparison of VEP parameters between psoriatic and healthy subjects, showed in group A 10 normal (22.7%) and 34 pathological (77.3%). In the latter group there are 16 subjects who show only a P100 reduced amplitude (36.3%), 3 with only increased latency (6.8%), 15 with alterations of both values (34%). The achieved data show that more than 3/4 of group A subjects have VEP alterations as index of the presence of a sub clinic optic neuritis with a probably toxic autoimmune origin due to the action of TNFalpha, of IgG, of ECP or of other cytokines (IL6, IL7, etc) that are increased in the blood of this patients. The electro physiologic monitoring of optic nerve seems to represent a good routine test to evaluate the global conditions of psoriatic patients.
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Affiliation(s)
- M Perossini
- Clinica Oculistica, Università di Pisa, Italy.
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Casieri C, Senni L, Romagnoli M, Santamaria U, De Luca F. Determination of moisture fraction in wood by mobile NMR device. J Magn Reson 2004; 171:364-372. [PMID: 15546765 DOI: 10.1016/j.jmr.2004.09.014] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2004] [Revised: 09/17/2004] [Indexed: 05/24/2023]
Abstract
A mobile NMR probe has been used as a non-destructive and non-invasive tool for water content analysis on wood samples. The porosity index, express as the fraction of the sensitivity volume of the probe occupied by water, is here proposed as an alternative to the moisture content index, namely the amount of water mass with respect to the mass of dried sample. In principle the method can be applied to any kind of porous media that has not detectable proton signal from the rigid matrix as, for instance, in building materials. In wood, where proton signal can be detected also from cellulose and others macromolecular components, some considerations and artifices are here proposed for eliminating this contribution. The method has allowed performing moisture volume fraction analysis on wood samples characterized by different wood species, cutting and moisture contents. The NMR data of moisture detection as volume fraction have successfully been compared with those obtained by the gravimetric method.
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Affiliation(s)
- C Casieri
- INFM-CRS SOFT and Dipartimento di Fisica, Università di L'Aquila, V. Vetoio 10, I-67010 Coppito, L'Aquila, Italy
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Abstract
Non pharmacological therapy has been gaining more interest and has been evolving rapidly over the last decade as an essential part of therapy for COPD patients. Pulmonary Rehabilitation (PR), the most important non pharmacological treatment in patients with COPD, has a primary goal: to achieve the highest possible level of individual exercise tolerance, thus reducing the primary and/or secondary health care utilisation. The aim of the present review is to focus the role of exercise training in these patients as well as to address the question on which training methods are the most beneficial. We have therefore undertaken a MEDLINE-based search including the terms: pulmonary rehabilitation, exercise, lung disease/obstructive. Several strategies based on endurance or strength training are nowadays implemented during PR programmes in order to maximise the benefits for each patient. The impaired function of ambulation muscles causing breathlessness as one of the more frequent symptoms in many COPD, suggests that training the lower extremities is the most important goal to achieve during pulmonary rehabilitation of these patients. On the other hand, as muscle strength appears to be an independent contributor to survival and utilisation of health care resources, it seems largely justified also to include this further modality in the PR program of these patients. In conclusion, both modalities are effective and useful for COPD patients. However, whether resistance training should be administered to all COPD and which is the optimal length of strength training still needs to be elucidated.
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Affiliation(s)
- E Clini
- Fondazione Villa Pineta, Dpt of Pulmonary Rehabilitation, Pavullo (MO), Italy.
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Abstract
BACKGROUND The aim of this study was to investigate the existence of associations between bruxism and psychic and occlusal factors. METHODS Participants in this study (n=85) were recruited from the Section of Odontostomatology, Deparent of Neuroscience, University of Pisa, Italy. They were split into two groups, bruxers (n=34) and non-bruxers (n=51), on the basis of the presence of both clinical and anamnestical indicators of bruxim. All participants were administered two self-reported validated questionnaires to evaluate (MOODS-SR) and panic-agoraphobic (PAS-SR) spetra. A number of occlusal variables (deep-bite: cross-bite, open-bite, mediotrusive and laterotrusive interferences, slide RCP-ICP, laterotrutsive guides, canine and molar classes) were also recorded. RESULTS With regards to occlusal factors, the only association was revealed between bruxism mediotrusive interferences (p < 0.05). As for psychiatric investigation, significant differences between bruxers and controls emerged for the presence of both depressive (p < 0.01) and manic symptoms (p < 0.01) in MOODS-SR, and for stress sensitivity (p < 0.01), anxious expectation (p < 0.05), and reassurance sensitivity symptoms (p < 0.05) in PAS-SR. In particular, both mood (p < 0.01) and panic-agoraphobic (p < 0.05) spectra symptoms seem to differentiate bruxers from controls in males, while in females strong differences emerged for stress sensitivity symptoms (p < 0.05). CONCLUSIONS It can be confirmed that certain psychic traits are present in bruxers, while occlusal factors are not useful parameters to discern bruxers from non-bruxers.
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Affiliation(s)
- D Manfredini
- Department of Neuroscience, University of Pisa, Italy.
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