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Panni P, Simionato F, Cao R, Pedicelli A, Marchese E, Caricato A, Alexandre A, Feletti A, Testa M, Zanatta P, Gitti N, Piva S, Mardighian D, Semeraro V, Nardin G, Lozupone E, Paiano G, Picetti E, Montanaro V, Petranca M, Bortolotti C, Scibilia A, Cirillo L, Aspide R, Lanterna AL, Ambrosi A, Mortini P, Azzolini ML, Calvi MR, Falini A. Hemorrhage Volume Drives Early Brain Injury and Outcome in Poor-Grade Aneurysmal SAH. AJNR Am J Neuroradiol 2024; 45:393-399. [PMID: 38453415 DOI: 10.3174/ajnr.a8135] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 12/06/2023] [Indexed: 03/09/2024]
Abstract
BACKGROUND AND PURPOSE Early brain injury is a major determinant of clinical outcome in poor-grade (World Federation of Neurosurgical Societies [WFNS] IV-V) aneurysmal SAH and is radiologically defined by global cerebral edema. Little is known, though, about the effect of global intracranial hemorrhage volume on early brain injury development and clinical outcome. MATERIALS AND METHODS Data from the multicentric prospective Poor-Grade Aneurysmal Subarachnoid Hemorrhage (POGASH) Registry of consecutive patients with poor-grade aneurysmal SAH admitted from January 1, 2015, to August 31, 2022, was retrospectively evaluated. Poor grade was defined according to the worst-pretreatment WFNS grade. Global intracranial hemorrhage volume as well as the volumes of intracerebral hemorrhage, intraventricular hemorrhage, and SAH were calculated by means of analytic software in a semiautomated setting. Outcomes included severe global cerebral edema (defined by Subarachnoid Hemorrhage Early Brain Edema Score grades 3-4), in-hospital mortality (mRS 6), and functional independence (mRS 0-2) at follow-up. RESULTS Among 400 patients (median global intracranial hemorrhage volume of 91 mL; interquartile range, 59-128), severe global cerebral edema was detected in 218/400 (54.5%) patients. One hundred twenty-three (30.8%) patients died during the acute phase of hospitalization. One hundred fifty-five (38.8%) patients achieved mRS 0-2 at a median of 13 (interquartile range, 3-26) months of follow-up. Multivariable analyses showed global intracranial hemorrhage volume as independently associated with severe global cerebral edema (adjusted OR, 1.009; 95% CI, 1.004-1.014; P < .001), mortality (adjusted OR, 1.006; 95% CI, 1.001-1.01; P = .018) and worse clinical outcome (adjusted OR, 0.992; 95% CI, 0.98-0.996; P < .010). The effect of global intracranial hemorrhage volume on clinical-radiologic outcomes changed significantly according to different age groups (younger than 50, 50-70, older than 70 year of age). Volumes of intracerebral hemorrhage, intraventricular hemorrhage, and SAH affected the 3 predefined outcomes differently. Intracerebral hemorrhage volume independently predicted global cerebral edema and long-term outcome, intraventricular hemorrhage volume predicted mortality and long-term outcome, and SAH volume predicted long-term clinical outcome. CONCLUSIONS Global intracranial hemorrhage volume plays a pivotal role in global cerebral edema development and emerged as an independent predictor of both mortality and long-term clinical outcome. Aging emerged as a reducing predictor in the relationship between global intracranial hemorrhage volume and global cerebral edema.
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Affiliation(s)
- Pietro Panni
- From the Department of Neuroradiology (P.P., F.S., R.C., A. Falini), Division of Interventional Neuroradiology, IRCCS San Raffaele Scientific Institute, Vita-Salute San Raffaele University, Milan, Italy
- Department of Neurosurgery (P.P., P.M.), IRCCS San Raffaele Scientific Institute, Vita-Salute San Raffaele University, Milan, Italy
| | - Franco Simionato
- From the Department of Neuroradiology (P.P., F.S., R.C., A. Falini), Division of Interventional Neuroradiology, IRCCS San Raffaele Scientific Institute, Vita-Salute San Raffaele University, Milan, Italy
| | - Roberta Cao
- From the Department of Neuroradiology (P.P., F.S., R.C., A. Falini), Division of Interventional Neuroradiology, IRCCS San Raffaele Scientific Institute, Vita-Salute San Raffaele University, Milan, Italy
| | - Alessandro Pedicelli
- Institute of Radiological Sciences (A.P., A. Alexandre). Policlinico Universitario A.Gemelli IRCCS Catholic University of Rome, Rome, Italy
| | - Enrico Marchese
- Department of Neurosurgery (E.M.), Policlinico Universitario A.Gemelli IRCCS Catholic University of Rome, Rome, Italy
| | - Anselmo Caricato
- Department of Anesthesia and Critical Care Medicine (A.C.), Fondazione Policlinico Universitario A. Gemelli IRCCS Catholic University of Rome, Rome, Italy
| | - Andrea Alexandre
- Institute of Radiological Sciences (A.P., A. Alexandre). Policlinico Universitario A.Gemelli IRCCS Catholic University of Rome, Rome, Italy
| | - Alberto Feletti
- Institute of Neurosurgery (A. Feletti, M.T), Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy
| | - Mattia Testa
- Institute of Neurosurgery (A. Feletti, M.T), Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy
| | - Paolo Zanatta
- Anesthesia and Intensive Care A (P.Z.), Integrated University Hospital, Verona, Italy
| | - Nicola Gitti
- Department of Anesthesia, Critical Care and Emergency (N.G., S.P.), Spedali Civili University Hospital, Brescia, Italy
| | - Simone Piva
- Department of Anesthesia, Critical Care and Emergency (N.G., S.P.), Spedali Civili University Hospital, Brescia, Italy
| | - Dikran Mardighian
- Department of Neuroradiology (D.M.), Spedali Civili University Hospital, Brescia, Italy
| | - Vittorio Semeraro
- Department of Radiology (V.S.), SS Annunziata Hospital, Taranto, Italy
| | - Giordano Nardin
- Department of Critical Care (G.N.), SS Annunziata Hospital, Taranto, Italy
| | - Emilio Lozupone
- Department of Neuroradiology (E.L.), Vito-Fazzi Hospital, Lecce, Italy
| | - Giafranco Paiano
- Department of Anaesthesia and Critical Care (G.P.), Vito-Fazzi Hospital, Lecce, Italy
| | - Edoardo Picetti
- Department of Anesthesia and Intensive Care (E.P., V.M., M.P), Parma University Hospital, Parma, Italy
| | - Vito Montanaro
- Department of Anesthesia and Intensive Care (E.P., V.M., M.P), Parma University Hospital, Parma, Italy
| | - Massimo Petranca
- Department of Anesthesia and Intensive Care (E.P., V.M., M.P), Parma University Hospital, Parma, Italy
| | - Carlo Bortolotti
- Department of Neurosurgery (C.B., A.S.), IRCCS Institute of Neurological Sciences "Bellaria," Bologna, Italy
| | - Antonino Scibilia
- Department of Neurosurgery (C.B., A.S.), IRCCS Institute of Neurological Sciences "Bellaria," Bologna, Italy
| | - Luigi Cirillo
- Department of Neuroradiology (L.C.), IRCCS Institute of Neurological Sciences "Bellaria," Bologna, Italy
| | - Raffaele Aspide
- Department of Neurointensive Care (R.A.), IRCCS Institute of Neurological Sciences "Bellaria," Bologna, Italy
| | | | - Alessandro Ambrosi
- Biostatistics, School of Medicine (A. Ambrosi), Vita-Salute San Raffaele University, Milan, Italy
| | - Pietro Mortini
- Department of Neurosurgery (P.P., P.M.), IRCCS San Raffaele Scientific Institute, Vita-Salute San Raffaele University, Milan, Italy
| | - Maria Luisa Azzolini
- Deparment of Neurocritical Care (M.L.A., M.R.C.), San Raffaele University Hospital, Milan, Italy
| | - Maria Rosa Calvi
- Deparment of Neurocritical Care (M.L.A., M.R.C.), San Raffaele University Hospital, Milan, Italy
| | - Andrea Falini
- From the Department of Neuroradiology (P.P., F.S., R.C., A. Falini), Division of Interventional Neuroradiology, IRCCS San Raffaele Scientific Institute, Vita-Salute San Raffaele University, Milan, Italy
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Capo G, Calvanese F, Vandenbulcke A, Zaed I, Di Carlo DT, Cao R, Barrey CY. Lateral-PLIF for spinal arthrodesis: concept, technique, results, complications, and outcomes. Acta Neurochir (Wien) 2024; 166:123. [PMID: 38451339 DOI: 10.1007/s00701-024-06024-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Accepted: 02/13/2024] [Indexed: 03/08/2024]
Abstract
BACKGROUND Posterior lumbar interbody fusion (PLIF) surgery represents an effective option to treat degenerative conditions in the lumbar spine. To reduce the drawbacks of the classical technique, we developed a variant, so-called Lateral-PLIF, which we then evaluated through a prospective consecutive series of patients. METHODS All adult patients treated at our institute with single or double level Lateral-PLIF for lumbar degenerative disease from January to December 2017 were prospectively collected. Exclusion criteria were patients < 18 years of age, traumatic patients, active infection, or malignancy, as well as unavailability of clinical and/or radiological follow-up data. The technique consists of insert the cages bilaterally through the transition zone between the central canal and the intervertebral foramen, just above the lateral recess. Pre- and postoperative (2 years) questionnaires and phone interviews (4 years) assessed pain and functional outcomes. Data related to the surgical procedure, postoperative complications, and radiological findings (1 year) were collected. RESULTS One hundred four patients were selected for the final analysis. The median age was 58 years and primary symptoms were mechanical back pain (100, 96.1%) and/or radicular pain (73, 70.2%). We found a high fusion rate (95%). A statistically significant improvement in functional outcome was also noted (ODI p < 0.001, Roland-Morris score p < 0.001). Walking distance increased from 812 m ± 543 m to 3443 m ± 712 m (p < 0.001). Complications included dural tear (6.7%), infection/wound dehiscence (4.8%), and instrument failure (1.9%) but no neurological deterioration. CONCLUSIONS Lateral-PLIF is a safe and effective technique for lumbar interbody fusion and may be considered for further comparative study validation with other techniques before extensive use to treat lumbar degenerative disease.
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Affiliation(s)
- Gabriele Capo
- Department of Spine and Spinal Cord Surgery, Pierre Wertheimer Hospital, Hospices Civils de Lyon, 59 Boulevard Pinel, 696777, Lyon-Bron, France
- IRCCS Humanitas Research Hospital, Via Manzoni 56, 20089, Rozzano, Milan, Italy
| | - Francesco Calvanese
- Department of Spine and Spinal Cord Surgery, Pierre Wertheimer Hospital, Hospices Civils de Lyon, 59 Boulevard Pinel, 696777, Lyon-Bron, France.
- Department of Neurosurgery, Helsinki University Hospital and University of Helsinki, Haartmaninkatu 4, 00290, Helsinki, Finland.
| | - Alberto Vandenbulcke
- Department of Spine and Spinal Cord Surgery, Pierre Wertheimer Hospital, Hospices Civils de Lyon, 59 Boulevard Pinel, 696777, Lyon-Bron, France
| | - Ismail Zaed
- Department of Spine and Spinal Cord Surgery, Pierre Wertheimer Hospital, Hospices Civils de Lyon, 59 Boulevard Pinel, 696777, Lyon-Bron, France
| | - Davide Tiziano Di Carlo
- Department of Neurosurgery, Azienda Ospedaliero Universitaria Pisana (AOUP), Via Paradisa 2, 56100, Pisa, Italy
- Department of Translational Research On New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
| | - Roberta Cao
- Department of Neuroradiology, Pierre Wertheimer Hospital, GHE, Hospices Civils de Lyon, and Claude Bernard University of Lyon 1, 59 Boulevard Pinel, 696777, Lyon-Bron, France
| | - Cédric Y Barrey
- Department of Spine and Spinal Cord Surgery, Pierre Wertheimer Hospital, Hospices Civils de Lyon, 59 Boulevard Pinel, 696777, Lyon-Bron, France
- Laboratory of Biomechanics, ENSAM, Arts Et Metiers ParisTech, 153 Boulevard de L'Hôpital, 75013, Paris, France
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Cao R, Mattar A, Torche E, Riva R, Laubacher M, Moreno-Gomez R, Turjman F, Falini A, Panni P, Eker OF. Clinical and angiographic characteristics of ruptured and unruptured distal cerebral aneurysms: a review of a large series of cases in a high-volume center. J Neurointerv Surg 2024:jnis-2023-021164. [PMID: 38443187 DOI: 10.1136/jnis-2023-021164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 02/12/2024] [Indexed: 03/07/2024]
Abstract
OBJECTIVE To evaluate clinical, angiographic features, and endovascular approach of ruptured and unruptured distal intracranial aneurysms (DIAs). METHODS From January 2013 to February 2022, details of all consecutive intracranial aneurysms (IAs) treated endovascularly in our center were collected and retrospectively reviewed. IAs involving the anterior cerebral artery, middle cerebral artery, and posterior cerebral artery (distal to anterior communicating artery, limen insula, and P1 segment, respectively), and those distal to superior cerebellar artery, anterior-inferior cerebellar artery, and posterior inferior cerebellar artery's first segment were classified based on their etiology, location, size, and shape. Demographic, clinical, angiographic, and procedural variables, as well as follow-up outcomes were evaluated. RESULTS Of 2542 IAs, 151 (5.9%) DIAs were counted (average size 5.4±2.9 mm), including 61 (40.4%) unruptured and 90 (59.6%) ruptured. No difference in the aneurysmal size was observed, but aneurysms smaller than 4 mm were observed more frequently in the ruptured group (36.7% vs 18%; P=0.01). In addition, ruptured DIAs were more often non-saccular (40% vs 18%; P=0.004) and irregular (93.3% vs 59%; P<0.001), They were treated mostly by coiling, glue, and parent artery sacrifice (P=0.02, P=0.006, and P=0.001), whereas unruptured DIAs were treated by stent-assisted coiling and flow-diverter stents (P=0.001 and P<0.001, respectively), without any differences in occlusion (81.6% vs 82.5%) and recanalization (21.1% vs 17.5%) rates. Procedure-related complications occurred in 20/151 (13.2%) patients, without any differences between subgroups. Ruptured DIAs were more often re-treated (18.4% vs 5.3%, P=0.02). In multivariate analyses, irregular shape appeared as an independent predictor of ruptured presentation (OR=8.1, 95% CI 3.0 to 21.7; P<0.001). CONCLUSIONS Compared with unruptured DIAs, ruptured DIAs were more often non-saccular, irregular, and smaller than 4 mm. Despite different therapeutical approaches, ruptured and unruptured DIAs presented comparable occlusion and recanalization rates.
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Affiliation(s)
- Roberta Cao
- Hôpital Pierre Wertheimer, Department of Neuroradiology, Hospices Civils de Lyon, Lyon, Auvergne-Rhône-Alpes, France
- Department of Neuroradiology, IRCCS San Raffaele Scientific Institute, Vita-Salute San Raffaele University, Milan, Italy
| | - Adonis Mattar
- Hôpital Pierre Wertheimer, Department of Neuroradiology, Hospices Civils de Lyon, Lyon, Auvergne-Rhône-Alpes, France
| | - Esteban Torche
- Hôpital Pierre Wertheimer, Department of Neuroradiology, Hospices Civils de Lyon, Lyon, Auvergne-Rhône-Alpes, France
| | - Roberto Riva
- Hôpital Pierre Wertheimer, Department of Neuroradiology, Hospices Civils de Lyon, Lyon, Auvergne-Rhône-Alpes, France
| | - Morgane Laubacher
- Hôpital Pierre Wertheimer, Department of Neuroradiology, Hospices Civils de Lyon, Lyon, Auvergne-Rhône-Alpes, France
| | - Ricardo Moreno-Gomez
- Hôpital Pierre Wertheimer, Department of Neuroradiology, Hospices Civils de Lyon, Lyon, Auvergne-Rhône-Alpes, France
| | - Francis Turjman
- Hôpital Pierre Wertheimer, Department of Neuroradiology, Hospices Civils de Lyon, Lyon, Auvergne-Rhône-Alpes, France
| | - Andrea Falini
- Department of Neuroradiology, IRCCS San Raffaele Scientific Institute, Vita-Salute San Raffaele University, Milan, Italy
| | - Pietro Panni
- Department of Neuroradiology and Neurosurgery, IRCCS San Raffaele Scientific Institute, Vita-Salute San Raffaele University, Milan, Italy
| | - Omer F Eker
- Hôpital Pierre Wertheimer, Department of Neuroradiology, Hospices Civils de Lyon, Lyon, Auvergne-Rhône-Alpes, France
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Torche E, Cao R, Mattar A, Laubacher M, Riva R, Eker OF. Ultra-Early "Fishmouth stenosis" and thrombosis of a Surpass Evolve flow diversion device following treatment of multiples right siphon aneurysms. Neuroradiology 2023; 65:1803-1807. [PMID: 37845483 DOI: 10.1007/s00234-023-03239-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 10/09/2023] [Indexed: 10/18/2023]
Abstract
We present a case of ultra-early symptomatic fish-mouth type stenosis (FMTS) of a Surpass Evolve flow diverter stent (SE-FDS) occurring within 24 h after deployment for the treatment of multiple unruptured right siphon aneurysms in a 44-year-old patient. The patient developed left hemiplegia and hemineglect, and was treated with mechanical thrombectomy (MT) and Tirofiban infusion. This is the first report of an ultra-early FMTS with a SE-FDS and its mechanism is discussed in the light of available data in the literature.
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Affiliation(s)
- Esteban Torche
- Department of Neuroradiology, Hôpital Pierre Wertheimer, Hospices Civils de Lyon, Bron, France.
- Department of Neurosurgery, Sanatorio Aleman, Concepción, Chile.
| | - Roberta Cao
- Department of Neuroradiology, Hôpital Pierre Wertheimer, Hospices Civils de Lyon, Bron, France
| | - Adonis Mattar
- Department of Neuroradiology, Hôpital Pierre Wertheimer, Hospices Civils de Lyon, Bron, France
| | - Morgane Laubacher
- Department of Neuroradiology, Hôpital Pierre Wertheimer, Hospices Civils de Lyon, Bron, France
| | - Roberto Riva
- Department of Neuroradiology, Hôpital Pierre Wertheimer, Hospices Civils de Lyon, Bron, France
| | - Omer F Eker
- Department of Neuroradiology, Hôpital Pierre Wertheimer, Hospices Civils de Lyon, Bron, France
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Panni P, Riccio L, Cao R, Pedicelli A, Marchese E, Caricato A, Feletti A, Testa M, Zanatta P, Gitti N, Piva S, Mardighian D, Semeraro V, Nardin G, Lozupone E, Paiano G, Picetti E, Montanaro V, Petranca M, Bortolotti C, Scibilia A, Cirillo L, Lanterna AL, Ambrosi A, Mortini P, Beretta L, Falini A. Clinical Impact and Predictors of Aneurysmal Rebleeding in Poor-Grade Subarachnoid Hemorrhage: Results From the National POGASH Registry. Neurosurgery 2023; 93:636-645. [PMID: 37010298 DOI: 10.1227/neu.0000000000002467] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Accepted: 01/27/2023] [Indexed: 04/04/2023] Open
Abstract
BACKGROUND Scarce data are available regarding rebleeding predictors in poor-grade aneurysmal subarachnoid hemorrhage (aSAH). OBJECTIVES To investigate predictors and clinical impact of rebleeding in a national multicentric poor-grade aSAH. METHODS Retrospective analysis of prospectively collected data from the multicentric Poor Grade Aneurysmal Subarachnoid Hemorrhage Study Group (POGASH) registry of consecutive patients treated from January 1, 2015, to June 30th, 2021. Grading was defined as pretreatment World Federation of Neurological Surgeons grading scale IV-V. Ultra-early vasospasm (UEV) was defined as luminal narrowing of intracranial arteries not due to intrinsic disease. Rebleeding was defined as clinical deterioration with evidence of increased hemorrhage on subsequent computed tomography scans, fresh blood from the external ventricular drain, or deterioration before neuroradiological evaluation. Outcome was assessed by the modified Rankin Scale. RESULTS Among 443 consecutive World Federation of Neurological Surgeons grades IV-V patients with aSAH treated within a median of 5 (IQR 4-9) hours since onset, rebleeding occurred in 78 (17.6%). UEV (adjusted odds ratio [OR] 6.8, 95% CI 3.2-14.4; P < .001) and presence of dissecting aneurysm (adjusted OR 3.5, 95% CI 1.3-9.3; P = .011) independently predicted rebleeding while history of hypertension (adjusted OR 0.4, 95% CI 0.2-0.8; P = .011) independently reduced its chances. 143 (32.3) patients died during hospitalization. Rebleeding emerged, among others, as an independent predictor of intrahospital mortality (adjusted OR 2.2, 95% CI 1.2-4.1; P = .009). CONCLUSION UEV and presence of dissecting aneurysms are the strongest predictors of aneurysmal rebleeding. Their presence should be carefully evaluated in the acute management of poor-grade aSAH.
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Affiliation(s)
- Pietro Panni
- Department of Neuroradiology, Interventional Neuroradiology Division, San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy
- Department of Neurosurgery, San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy
| | - Lucia Riccio
- Department of Neurosurgery, San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy
| | - Roberta Cao
- Department of Neuroradiology, Interventional Neuroradiology Division, San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy
| | - Alessandro Pedicelli
- Institute of Radiological Sciences, Fondazione Policlinico Universitario A. Gemelli, IRCCS Catholic University of Rome, Rome, Italy
| | - Enrico Marchese
- Department of Neurosurgery Fondazione Policlinico Universitario A. Gemelli, IRCCS Catholic University of Rome, Rome, Italy
| | - Anselmo Caricato
- Department of Anesthesia and Critical Care Medicine Fondazione Policlinico Universitario A.Gemelli IRCCS Catholic University of Rome, Rome, Italy
| | - Alberto Feletti
- Institute of Neurosurgery, Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy
| | - Mattia Testa
- Institute of Neurosurgery, Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy
| | - Paolo Zanatta
- Anesthesia and Intensive Care A, Integrated University Hospital, Verona, Italy
| | - Nicola Gitti
- Department of Anesthesia, Critical Care and Emergency, Spedali Civili University Hospital, Brescia, Italy
| | - Simone Piva
- Department of Anesthesia, Critical Care and Emergency, Spedali Civili University Hospital, Brescia, Italy
- Department of Medical and Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, Brescia, Italy
| | - Dikran Mardighian
- Department of Neuroradiology Spedali Civili University Hospital, Brescia, Italy
| | | | - Giordano Nardin
- Department of Critical Care, SS Annunziata Hospital, Taranto, Italy
| | - Emilio Lozupone
- Department of Neuroradiology, Vito-Fazzi Hospital, Lecce, Italy
| | - Giafranco Paiano
- Department of Anaesthesia and Critical Care, Vito-Fazzi Hospital, Lecce, Italy
| | - Edoardo Picetti
- Department of Anesthesia and Intensive Care, Parma University Hospital, Italy
| | - Vito Montanaro
- Department of Anesthesia and Intensive Care, Parma University Hospital, Italy
| | - Massimo Petranca
- Department of Anesthesia and Intensive Care, Parma University Hospital, Italy
| | - Carlo Bortolotti
- Department of Neurosurgery, IRCCS Institute of Neurological Sciences "Bellaria", Bologna, Italy
| | - Antonino Scibilia
- Department of Neurosurgery, IRCCS Institute of Neurological Sciences "Bellaria", Bologna, Italy
| | - Luigi Cirillo
- Department of Neuroradiology, IRCCS Institute of Neurological Sciences "Bellaria", Bologna, Italy
| | | | | | - Pietro Mortini
- Department of Neurosurgery, San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy
| | - Luigi Beretta
- Department of Neurocritical Care San Raffaele University Hospital, Milan, Italy
| | - Andrea Falini
- Department of Neuroradiology, Interventional Neuroradiology Division, San Raffaele Hospital, Vita-Salute San Raffaele University, Milan, Italy
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Wu CC, Gan DF, Cao R, Li LC. Mechanism of liver X receptor α and ATP binding cassette transporter A1 involved in preeclampsia using an optimized deep learning model. Eur Rev Med Pharmacol Sci 2023; 27:6319-6331. [PMID: 37458649 DOI: 10.26355/eurrev_202307_32992] [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: 07/20/2023]
Abstract
OBJECTIVE Preeclampsia (PE) is a complex disease-causing multisystem damage. Many genes, environmental factors, and their interactions are involved in the development and progression of PE. The pathogenesis of PE is not fully understood, limiting the prevention and treatment of PE. The aim of this study was to investigate the effect of 4,4'-diisothiocyanato-stilbene-2,2'-disulfonic acid (DIDS), an ATP-binding cassette transporter A1 (ABCA1) blocker, on apoM mRNA and protein levels. PATIENTS AND METHODS The role of liver X receptor α (LXRα) and ABCA1 in the pathogenesis of PE was investigated by optimizing the design of DIDS inhibition based on a deep learning model. RESULTS The proportion of primipara in the research group, EOPE group, LOPE group, and controls was 59.82%, 65.85%, 56.34%, and 21.43%, respectively. The difference between the research group and the controls was statistically significant (p<0.01). In the clinical data, serum-free triiodothyronine (FT3), gestational age at delivery, high-density lipoprotein cholesterol (HDL-C), hemoglobin (HGB), albumin, and platelet (PLT) in the research group were lower than those in the controls (p<0.05). CONCLUSIONS ABCA1 is considered to affect apoM mRNA expression, G/HDL-C may increase the risk of LOPE, and overweight or obesity, abnormal glycemic regulation, and hypothyroidism are independent risk factors closely related to the pathogenesis of PE and its subgroups.
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Affiliation(s)
- C-C Wu
- Department of Obstetrics and Gynecology, Quanzhou First Hospital Affiliated to Fujian Medical University, Quanzhou, China.
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Nie XQ, Huang CF, Yin Z, Yang Y, Zhou X, Fang D, Cao R, Liu QF, Lin R, Deng YJ, Yu GP. [Two cases of EB virus-positive diffuse large B-cell lymphoma with HAVCR2 mutation]. Zhonghua Nei Ke Za Zhi 2023; 62:863-866. [PMID: 37394859 DOI: 10.3760/cma.j.cn112138-20221018-00764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 07/04/2023]
Affiliation(s)
- X Q Nie
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - C F Huang
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Z Yin
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Y Yang
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - X Zhou
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - D Fang
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - R Cao
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Q F Liu
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - R Lin
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Y J Deng
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - G P Yu
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
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Kong X, Cao R, Lu T, Gao S, Sun G, Cao F. Remote telemedicine strategy based on multi-risks intervention by intelligent wearable health devices in elderly comorbidities patients with coronary heart disease. Eur Heart J 2022. [PMCID: PMC9619686 DOI: 10.1093/eurheartj/ehac544.2813] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
Background Telemedicine based on wearable intelligent health devices becomes increasingly promissing for the elderly due to the accelerated aging population. Especially during COVID-19 pandemic, more elderly coronary heart disease patients with chronic comorbidities are in less secondary prevention management at home. Objective To explore the prevention effect on main cardiovascular risk factors and repeated hospitalization in elderly comorbidities patients by telemedicine intervention based on multi-parameter wearable monitoring devices. Methods Total of 337 patients with comorbidities of coronary heart disease, hypertension and diabetes, with age more than 65 years old were recruited in the study from October 2019 to January 2021. They were randomly divided into control group and telemedcine intervention group. The latter used remote multi-parameter wearable devices to measure blood pressure, glycemic and electrocardiograph at home every day. A real-time monitoring platform would alarm any abnormal data to the doctors. Both doctors and patients can read the measurement results on a real-time mobile phone APP and interact with each other remotely twice a week routinely. A medical team remotely indicated the medications, while offering guidance on lifestyle. In contrast, the control group adopted traditional outpatient medical strategy to manage diseases. Results A total of 306 patients were enrolled in the follow-up experiment finally: 153 in the intervention group and 153 in the control group. Patient characteristics at baseline were balanced between two groups. After 12 months, compared with the control group, the intervention group saw the following metrics significantly reduced: systolic blood pressure (SBP) (131.66±9.43 vs 137.20±12.02 mmHg, P=0.000), total cholesterol (TC) (3.65±0.79 vs 4.08±0.82 mmol/L, P=0.001), low density lipoprotein cholesterol (LDL-C) (2.06±0.53 vs 2.38±0.61 mmol/L, P=0.002), and fasting blood glucose (FBG) (6.26±0.75 vs 6.81±0.97 mmol/L, P=0.000), while the following metrics went up significantly: blood pressure control rate (77.3% vs 59.1%, P=0.039), blood lipid control rate(39.4% vs 21.2%, P=0.037), glycemic control rate (71.2% vs 51.5%, P=0.031), and medication adherence score (7.10±0.77 vs 6.80±0.73, P=0.020). Linear regression model analysis indicates that when interaction frequency ≥1.53, 2.47 and 1.15 times/week, the SBP, LDL-C and FBG levels would be controlled, respectively. Cox survival analysis finds that the hospitalization rate of intervention group is significantly lower than that of the control group (24.18% vs 35.29%, P=0.031). Conclusion The telemedicine interactive intervention based on multi-parameter wearable devices provides effectively improvement of cardiovascular risk controlling, medication adherence, while reducing the hospitalization rate of patients. A frequency of doctor-patient interactions more than 2 times/week is beneficial for disease management the elderly at home. Funding Acknowledgement Type of funding sources: Foundation. Main funding source(s): Key scientific research project of Health Commission
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Affiliation(s)
- X Kong
- Chinese PLA General Hospital , Beijing , China
| | - R Cao
- Chinese PLA General Hospital , Beijing , China
| | - T Lu
- Chinese PLA General Hospital , Beijing , China
| | - S Gao
- Chinese PLA General Hospital , Beijing , China
| | - G Sun
- Chinese PLA General Hospital , Beijing , China
| | - F Cao
- Chinese PLA General Hospital , Beijing , China
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9
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Palumbo D, Mori M, Prato F, Crippa S, Belfiori G, Reni M, Mushtaq J, Aleotti F, Guazzarotti G, Cao R, Steidler S, Tamburrino D, Spezi E, Del Vecchio A, Cascinu S, Falconi M, Fiorino C, De Cobelli F. Prediction of Early Distant Recurrence in Upfront Resectable Pancreatic Adenocarcinoma: A Multidisciplinary, Machine Learning-Based Approach. Cancers (Basel) 2021; 13:cancers13194938. [PMID: 34638421 PMCID: PMC8508250 DOI: 10.3390/cancers13194938] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [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: 08/30/2021] [Revised: 09/27/2021] [Accepted: 09/28/2021] [Indexed: 01/06/2023] Open
Abstract
Simple Summary If pancreatic adenocarcinoma is assessed to be technically resectable, curative surgery is still suggested as the primary treatment option; however, the recurrence rate can be very high even in this selected population. The aim of our retrospective study was to develop a preoperative model to accurately stratify upfront resectable patients according to the risk of early distant disease relapse after surgery (<12 months from index procedure). Through a machine learning-based approach, we identified one biochemical marker (serum level of CA19.9), one radiological finding (necrosis) and one radiomic feature (SurfAreaToVolumeRatio), all significantly associated with the early resurge of distant recurrence. A model composed of these three variables only allowed identification of those patients at high risk for early distant disease relapse (50% chance of developing metastases within 12 months after surgery), who would benefit from neoadjuvant chemotherapy instead of upfront surgery. Abstract Despite careful selection, the recurrence rate after upfront surgery for pancreatic adenocarcinoma can be very high. We aimed to construct and validate a model for the prediction of early distant recurrence (<12 months from index surgery) after upfront pancreaticoduodenectomy. After exclusions, 147 patients were retrospectively enrolled. Preoperative clinical and radiological (CT-based) data were systematically evaluated; moreover, 182 radiomics features (RFs) were extracted. Most significant RFs were selected using minimum redundancy, robustness against delineation uncertainty and an original machine learning bootstrap-based method. Patients were split into training (n = 94) and validation cohort (n = 53). Multivariable Cox regression analysis was first applied on the training cohort; the resulting prognostic index was then tested in the validation cohort. Clinical (serum level of CA19.9), radiological (necrosis), and radiomic (SurfAreaToVolumeRatio) features were significantly associated with the early resurge of distant recurrence. The model combining these three variables performed well in the training cohort (p = 0.0015, HR = 3.58, 95%CI = 1.98–6.71) and was then confirmed in the validation cohort (p = 0.0178, HR = 5.06, 95%CI = 1.75–14.58). The comparison of survival curves between low and high-risk patients showed a p-value <0.0001. Our model may help to better define resectability status, thus providing an actual aid for pancreatic adenocarcinoma patients’ management (upfront surgery vs. neoadjuvant chemotherapy). Independent validations are warranted.
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Affiliation(s)
- Diego Palumbo
- Department of Radiology, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy; (D.P.); (J.M.); (G.G.); (S.S.); (F.D.C.)
- School of Medicine, Vita-Salute San Raffaele University, 20132 Milan, Italy; (F.P.); (S.C.); (G.B.); (M.R.); (F.A.); (R.C.); (S.C.); (M.F.)
| | - Martina Mori
- Department of Medical Physics, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy; (M.M.); (A.D.V.)
| | - Francesco Prato
- School of Medicine, Vita-Salute San Raffaele University, 20132 Milan, Italy; (F.P.); (S.C.); (G.B.); (M.R.); (F.A.); (R.C.); (S.C.); (M.F.)
| | - Stefano Crippa
- School of Medicine, Vita-Salute San Raffaele University, 20132 Milan, Italy; (F.P.); (S.C.); (G.B.); (M.R.); (F.A.); (R.C.); (S.C.); (M.F.)
- Pancreatic Surgery Unit, Pancreas Translational and Clinical Research Center, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy;
| | - Giulio Belfiori
- School of Medicine, Vita-Salute San Raffaele University, 20132 Milan, Italy; (F.P.); (S.C.); (G.B.); (M.R.); (F.A.); (R.C.); (S.C.); (M.F.)
- Pancreatic Surgery Unit, Pancreas Translational and Clinical Research Center, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy;
| | - Michele Reni
- School of Medicine, Vita-Salute San Raffaele University, 20132 Milan, Italy; (F.P.); (S.C.); (G.B.); (M.R.); (F.A.); (R.C.); (S.C.); (M.F.)
- Department of Oncology, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy
| | - Junaid Mushtaq
- Department of Radiology, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy; (D.P.); (J.M.); (G.G.); (S.S.); (F.D.C.)
- School of Medicine, Vita-Salute San Raffaele University, 20132 Milan, Italy; (F.P.); (S.C.); (G.B.); (M.R.); (F.A.); (R.C.); (S.C.); (M.F.)
| | - Francesca Aleotti
- School of Medicine, Vita-Salute San Raffaele University, 20132 Milan, Italy; (F.P.); (S.C.); (G.B.); (M.R.); (F.A.); (R.C.); (S.C.); (M.F.)
- Pancreatic Surgery Unit, Pancreas Translational and Clinical Research Center, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy;
| | - Giorgia Guazzarotti
- Department of Radiology, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy; (D.P.); (J.M.); (G.G.); (S.S.); (F.D.C.)
| | - Roberta Cao
- School of Medicine, Vita-Salute San Raffaele University, 20132 Milan, Italy; (F.P.); (S.C.); (G.B.); (M.R.); (F.A.); (R.C.); (S.C.); (M.F.)
| | - Stephanie Steidler
- Department of Radiology, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy; (D.P.); (J.M.); (G.G.); (S.S.); (F.D.C.)
| | - Domenico Tamburrino
- Pancreatic Surgery Unit, Pancreas Translational and Clinical Research Center, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy;
| | - Emiliano Spezi
- School of Engineering, Cardiff University, Cardiff CF24 3AA, UK;
| | - Antonella Del Vecchio
- Department of Medical Physics, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy; (M.M.); (A.D.V.)
| | - Stefano Cascinu
- School of Medicine, Vita-Salute San Raffaele University, 20132 Milan, Italy; (F.P.); (S.C.); (G.B.); (M.R.); (F.A.); (R.C.); (S.C.); (M.F.)
- Department of Oncology, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy
| | - Massimo Falconi
- School of Medicine, Vita-Salute San Raffaele University, 20132 Milan, Italy; (F.P.); (S.C.); (G.B.); (M.R.); (F.A.); (R.C.); (S.C.); (M.F.)
- Pancreatic Surgery Unit, Pancreas Translational and Clinical Research Center, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy;
| | - Claudio Fiorino
- Department of Medical Physics, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy; (M.M.); (A.D.V.)
- Correspondence:
| | - Francesco De Cobelli
- Department of Radiology, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy; (D.P.); (J.M.); (G.G.); (S.S.); (F.D.C.)
- School of Medicine, Vita-Salute San Raffaele University, 20132 Milan, Italy; (F.P.); (S.C.); (G.B.); (M.R.); (F.A.); (R.C.); (S.C.); (M.F.)
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Xiong W, Guoqiang X, Wang Q, Xu T, Cao R, Zhu L. 877P Comparison of dosimetric benefits in nasopharyngeal carcinoma patients among intensity-modulated radiotherapy, volumetric-modulated arc therapy and tomotherapy. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.1287] [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: 10/20/2022] Open
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Esposito A, Palmisano A, Cao R, Rancoita P, Landoni G, Grippaldi D, Boccia E, Cosenza M, Messina A, La Marca S, Palumbo D, Di Serio C, Spessot M, Tresoldi M, Scarpellini P, Ciceri F, Zangrillo A, De Cobelli F. Quantitative assessment of lung involvement on chest CT at admission: Impact on hypoxia and outcome in COVID-19 patients. Clin Imaging 2021; 77:194-201. [PMID: 33984670 PMCID: PMC8081746 DOI: 10.1016/j.clinimag.2021.04.033] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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: 06/16/2020] [Revised: 04/14/2021] [Accepted: 04/18/2021] [Indexed: 01/09/2023]
Abstract
BACKGROUND The aim of this study was to quantify COVID-19 pneumonia features using CT performed at time of admission to emergency department in order to predict patients' hypoxia during the hospitalization and outcome. METHODS Consecutive chest CT performed in the emergency department between March 1st and April 7th 2020 for COVID-19 pneumonia were analyzed. The three features of pneumonia (GGO, semi-consolidation and consolidation) and the percentage of well-aerated lung were quantified using a HU threshold based software. ROC curves identified the optimal cut-off values of CT parameters to predict hypoxia worsening and hospital discharge. Multiple Cox proportional hazards regression was used to analyze the capability of CT quantitative features, demographic and clinical variables to predict the time to hospital discharge. RESULTS Seventy-seven patients (median age 56-years-old, 51 men) with COVID-19 pneumonia at CT were enrolled. The quantitative features of COVID-19 pneumonia were not associated to age, sex and time-from-symptoms onset, whereas higher number of comorbidities was correlated to lower well-aerated parenchyma ratio (rho = -0.234, p = 0.04) and increased semi-consolidation ratio (rho = -0.303, p = 0.008). Well-aerated lung (≤57%), semi-consolidation (≥17%) and consolidation (≥9%) predicted worst hypoxemia during hospitalization, with moderate areas under curves (AUC 0.76, 0.75, 0.77, respectively). Multiple Cox regression identified younger age (p < 0.01), female sex (p < 0.001), longer time-from-symptoms onset (p = 0.049), semi-consolidation ≤17% (p < 0.01) and consolidation ≤13% (p = 0.03) as independent predictors of shorter time to hospital discharge. CONCLUSION Quantification of pneumonia features on admitting chest CT predicted hypoxia worsening during hospitalization and time to hospital discharge in COVID-19 patients.
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Affiliation(s)
- Antonio Esposito
- Experimental Imaging Center, Radiology Unit, IRCCS San Raffaele Hospital, Milan, Italy; School of Medicine, Vita-Salute San Raffaele University, Milan, Italy.
| | - Anna Palmisano
- Experimental Imaging Center, Radiology Unit, IRCCS San Raffaele Hospital, Milan, Italy; School of Medicine, Vita-Salute San Raffaele University, Milan, Italy
| | - Roberta Cao
- Experimental Imaging Center, Radiology Unit, IRCCS San Raffaele Hospital, Milan, Italy; School of Medicine, Vita-Salute San Raffaele University, Milan, Italy
| | - Paola Rancoita
- University Centre for Statistics in the Biomedical Sciences, Vita-Salute San Raffaele University, Milan, Italy
| | - Giovanni Landoni
- School of Medicine, Vita-Salute San Raffaele University, Milan, Italy; Department of Anesthesia and Intensive Care, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Daniele Grippaldi
- Experimental Imaging Center, Radiology Unit, IRCCS San Raffaele Hospital, Milan, Italy; School of Medicine, Vita-Salute San Raffaele University, Milan, Italy
| | - Edda Boccia
- Imaging analysis and post-processing, Experimental Imaging Center, IRCCS San Raffaele Hospital, Milan, Italy
| | - Michele Cosenza
- Experimental Imaging Center, Radiology Unit, IRCCS San Raffaele Hospital, Milan, Italy; School of Medicine, Vita-Salute San Raffaele University, Milan, Italy
| | - Antonio Messina
- Experimental Imaging Center, Radiology Unit, IRCCS San Raffaele Hospital, Milan, Italy; School of Medicine, Vita-Salute San Raffaele University, Milan, Italy
| | - Salvatore La Marca
- Experimental Imaging Center, Radiology Unit, IRCCS San Raffaele Hospital, Milan, Italy; School of Medicine, Vita-Salute San Raffaele University, Milan, Italy
| | - Diego Palumbo
- Experimental Imaging Center, Radiology Unit, IRCCS San Raffaele Hospital, Milan, Italy; School of Medicine, Vita-Salute San Raffaele University, Milan, Italy
| | - Clelia Di Serio
- School of Medicine, Vita-Salute San Raffaele University, Milan, Italy; University Centre for Statistics in the Biomedical Sciences, Vita-Salute San Raffaele University, Milan, Italy
| | - Marzia Spessot
- Emergency Medicine, Emergency Department, IRCCS San Raffaele Hospital, Milan, Italy
| | - Moreno Tresoldi
- Unit of General Medicine and Advanced Care, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Paolo Scarpellini
- Infectious Diseases Department, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Fabio Ciceri
- School of Medicine, Vita-Salute San Raffaele University, Milan, Italy; Hematology and Bone Marrow Transplantation, IRCCS San Raffaele Scientific Institute, Italy
| | - Alberto Zangrillo
- School of Medicine, Vita-Salute San Raffaele University, Milan, Italy; Department of Anesthesia and Intensive Care, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Francesco De Cobelli
- Experimental Imaging Center, Radiology Unit, IRCCS San Raffaele Hospital, Milan, Italy; School of Medicine, Vita-Salute San Raffaele University, Milan, Italy
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Lin DN, Li QL, He XJ, Li H, Liao LB, He H, Zhou LL, Li Z, Liu XL, Liu QF, Zhou HS, Cao R. [Diagnosis of adult Philadelphia chromosome-like acute lymphoblastic leukemia by fluorescence in situ hybridization]. Zhonghua Xue Ye Xue Za Zhi 2021; 41:749-755. [PMID: 33113607 PMCID: PMC7595857 DOI: 10.3760/cma.j.issn.0253-2727.2020.09.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
目的 建立应用荧光原位杂交技术(FISH)筛查成人Ph样急性淋巴细胞白血病(ALL)的体系。 方法 根据Ph样ALL的遗传学特征,设计了针对ABL1、ABL2、JAK2、EPOR、CRLF2、CSF1R、PDGFRB、P2RY8等基因断裂重排的FISH探针;对BCR-ABL1、ETV6-RUNX1、MLL基因断裂重排和E2A断裂重排均阴性的B-ALL,采用FISH进行Ph样ALL筛查,并结合流式免疫表型、靶向二代测序突变检测和RNA测序进行Ph样ALL诊断分析。 结果 2016年1月至2019年4月,南方医院血液科收治189例成人B-ALL,经FISH和(或)PCR检测,BCR-ABL1、ETV6-RUNX1、MLL断裂重排或E2A断裂重排阳性者共83例;其余106例患者接受Ph样ALL FISH探针筛查,其中,12例(11.3%)检出典型的Ph样ALL特异基因断裂重排,2例检出基因缺失。经RNA测序进一步验证,FISH检测Ph样ALL基因断裂重排结果灵敏度为71.4%,特异度为95.8%。综合免疫表型、靶向二代测序突变检测和RNA测序,共诊断融合基因阳性Ph样ALL 14例(13.2%)。 结论 FISH技术检测Ph样ALL具有较高的特异性,结合免疫表型和测序技术可完善诊断体系。
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Affiliation(s)
- D N Lin
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Q L Li
- Department of Hematology, the People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530000, China
| | - X J He
- Department of Hematology, General Hospital of Southern Theatre Command of PLA, Guangzhou, 510010, China
| | - H Li
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - L B Liao
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - H He
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - L L Zhou
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Z Li
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - X L Liu
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Q F Liu
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - H S Zhou
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - R Cao
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
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Abstract
Summary
Hall & Robinson (2009) proposed and analysed the use of bagged cross-validation to choose the bandwidth of a kernel density estimator. They established that bagging greatly reduces the noise inherent in ordinary cross-validation, and hence leads to a more efficient bandwidth selector. The asymptotic theory of Hall & Robinson (2009) assumes that $N$, the number of bagged subsamples, is $\infty$. We expand upon their theoretical results by allowing $N$ to be finite, as it is in practice. Our results indicate an important difference in the rate of convergence of the bagged cross-validation bandwidth for the cases $N=\infty$ and $N<\infty$. Simulations quantify the improvement in statistical efficiency and computational speed that can result from using bagged cross-validation as opposed to a binned implementation of ordinary cross-validation. The performance of the bagged bandwidth is also illustrated on a real, very large, dataset. Finally, a byproduct of our study is the correction of errors appearing in the Hall & Robinson (2009) expression for the asymptotic mean squared error of the bagging selector.
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Affiliation(s)
- D Barreiro-Ures
- Departamento de Matemáticas, Facultade de Informática, CITIC, Universidade da Coruña, Campus de Elviña, 15071 A Coruña, Spain
| | - R Cao
- Departamento de Matemáticas, Facultade de Informática, CITIC, Universidade da Coruña, Campus de Elviña, 15071 A Coruña, Spain
| | - M Francisco-Fernández
- Departamento de Matemáticas, Facultade de Informática, CITIC, Universidade da Coruña, Campus de Elviña, 15071 A Coruña, Spain
| | - J D Hart
- Department of Statistics, Texas A&M University, College Station, Texas 77843, U.S.A
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Han T, Chen K, Cao R, Zheng T, Chen Z, Zhang X, Yan X. Influence of post-core material and cement peculiarities on stress of post-cores under ultrasonic vibration: a three-dimensional finite element analysis. Int Endod J 2020; 53:1696-1704. [PMID: 32781493 DOI: 10.1111/iej.13388] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Revised: 08/06/2020] [Accepted: 08/07/2020] [Indexed: 11/30/2022]
Abstract
AIM To analyse the effect of post-core, and cement materials and thickness of the cement lute on the stress in post-core systems under ultrasonic vibration at different frequencies and amplitudes using three-dimensional finite element analysis. METHODOLOGY Eight three-dimensional finite element models of a maxillary central incisor with post-cores were established. Two post-core materials (Au and Ni-Cr alloys), two cements (glass ionomer (GI) and zinc phosphate (ZP)) and two cement layer thicknesses (50 and 150 μm) were considered. Vibration loads were applied near the neck on the buccal side of the core at frequencies of 10-40 kHz and amplitudes of 10-50 μm. The maximum shear stress of the cement layer and maximum principal stress of the roots and their distributions were investigated. RESULTS The stresses on cements and roots increased with an increase in the frequency and amplitude of the vibration load and elastic modulus of the cements, and decreased with increasing thickness of the cement layer and elastic modulus of the post-core. Maximum cement stress was observed on the contralateral upper part of the loading side, whereas the maximum root stress was found on the ferrule where the load was applied. CONCLUSIONS In this simulated model, the frequency and amplitude of ultrasound needed to remove a post-core were positively related to the elastic modulus of the post-core and thickness of the cement layer and negatively related to the elastic modulus of the cements.
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Affiliation(s)
- T Han
- The VIP Department, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China
| | - K Chen
- Department of Endodontics, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China
| | - R Cao
- School of Stomatology, China Medical University, Shenyang, China
| | - T Zheng
- The VIP Department, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China
| | - Z Chen
- The VIP Department, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China
| | - X Zhang
- Center of Implant Dentistry, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China
| | - X Yan
- The VIP Department, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China
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Omura M, Stone TE, Petrini MA, Cao R. Nurses' health beliefs about paper face masks in Japan, Australia and China: a qualitative descriptive study. Int Nurs Rev 2020; 67:341-351. [PMID: 32686094 PMCID: PMC7404493 DOI: 10.1111/inr.12607] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 06/04/2020] [Accepted: 06/09/2020] [Indexed: 12/23/2022]
Abstract
Aim To explore the health beliefs of clinical and academic nurses from Japan, Australia and China regarding wearing paper masks to protect themselves and others, and to identify differences in participants' health beliefs regarding masks. Background The correct use of face masks and consensus among health professionals across the globe is essential for containing pandemics, and nurses need to act according to policy to protect themselves, educate the public and preserve resources for frontline health workers. Paper masks are worn by health professionals and the general public to avoid the transmission of respiratory infections, such as COVID‐19, but there appear to be differences in health beliefs of nurses within and between countries regarding these. Methods This qualitative descriptive study used content analysis with a framework approach. Findings There were major differences in nurse participants’ beliefs between and within countries, including how nurses use paper masks and their understanding of their efficacy. In addition, there were cultural differences in the way that nurses use masks in their daily lives and nursing practice contexts. Conclusion Nurses from different working environments, countries and areas of practice hold a variety of health beliefs about mask wearing at the personal and professional level. Implications for nursing policy and health policy The COVID‐19 pandemic has sparked much discussion about the critical importance of masks for the safety of health professionals, and there has been considerable discussion and disagreement about health policies regarding mask use by the general public. Improper use of masks may have a role in creating mask shortages or transmitting infections. An evidence‐based global policy on mask use for respiratory illnesses for health professionals, including nurses, and the general public needs to be adopted and supported by a wide‐reaching education campaign.
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Affiliation(s)
- M Omura
- Faculty of Health and Medicine, School of Nursing and Midwifery, The University of Newcastle, Callaghan, NSW, Australia
| | - T E Stone
- Faculty of Health and Medicine, School of Nursing and Midwifery, The University of Newcastle, Callaghan, NSW, Australia.,Faculty of Medicine and Health Sciences, Yamaguchi University, Ube City, Japan
| | - M A Petrini
- Faculty of Nursing, Chiang Mai University, Mueang Chiang Mai District, Chiang Mai, Thailand
| | - R Cao
- Nursing Department, Zhongnan Hospital of Wuhan University, Wuhan, China
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16
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Cao R, Chen X, Xing F, Xie C, Hu P, Wang K. Cross‐sectional and longitudinal associations between probable rapid eye movement sleep behavior disorder and impulse control disorders in Parkinson’s disease. Eur J Neurol 2020; 27:757-763. [PMID: 32065438 DOI: 10.1111/ene.14177] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2019] [Accepted: 02/13/2020] [Indexed: 11/27/2022]
Affiliation(s)
- R. Cao
- Department of Neurology First Affiliated Hospital of Anhui Medical University Hefei China
- Collaborative Innovation Centre of Neuropsychiatric Disorder and Mental Health Hefei China
- Anhui Province Key Laboratory of Cognition and Neuropsychiatric Disorders Hefei China
| | - X. Chen
- Department of Neurology First Affiliated Hospital of Anhui Medical University Hefei China
- Collaborative Innovation Centre of Neuropsychiatric Disorder and Mental Health Hefei China
- Anhui Province Key Laboratory of Cognition and Neuropsychiatric Disorders Hefei China
| | - F. Xing
- Department of Neurology First Affiliated Hospital of Anhui Medical University Hefei China
- Collaborative Innovation Centre of Neuropsychiatric Disorder and Mental Health Hefei China
- Anhui Province Key Laboratory of Cognition and Neuropsychiatric Disorders Hefei China
| | - C. Xie
- Department of Neurology First Affiliated Hospital of Anhui Medical University Hefei China
- Collaborative Innovation Centre of Neuropsychiatric Disorder and Mental Health Hefei China
- Anhui Province Key Laboratory of Cognition and Neuropsychiatric Disorders Hefei China
| | - P. Hu
- Department of Neurology First Affiliated Hospital of Anhui Medical University Hefei China
- Collaborative Innovation Centre of Neuropsychiatric Disorder and Mental Health Hefei China
- Anhui Province Key Laboratory of Cognition and Neuropsychiatric Disorders Hefei China
| | - K. Wang
- Department of Neurology First Affiliated Hospital of Anhui Medical University Hefei China
- Collaborative Innovation Centre of Neuropsychiatric Disorder and Mental Health Hefei China
- Anhui Province Key Laboratory of Cognition and Neuropsychiatric Disorders Hefei China
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17
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Li J, Yao M, Zhu X, Li Q, He J, Chen L, Wang W, Zhu C, Shen T, Cao R, Fang C. Response to the Letter to the Editor: "YAP-Induced Endothelial-Mesenchymal Transition in Oral Submucous Fibrosis". J Dent Res 2019; 99:116. [PMID: 31725356 DOI: 10.1177/0022034519888846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Affiliation(s)
- J Li
- Department of Stomatology, Xiangya Hospital, Central South University, Changsha, China.,Center for Molecular Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - M Yao
- Department of Stomatology, Xiangya Hospital, Central South University, Changsha, China
| | - X Zhu
- Department of Stomatology, Xiangya Hospital, Central South University, Changsha, China
| | - Q Li
- Department of Stomatology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - J He
- Center for Molecular Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - L Chen
- Center for Molecular Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - W Wang
- Department of Stomatology, Xiangya Hospital, Central South University, Changsha, China
| | - C Zhu
- Department of Stomatology, Xiangya Hospital, Central South University, Changsha, China
| | - T Shen
- Department of Stomatology, Xiangya Hospital, Central South University, Changsha, China
| | - R Cao
- Department of Prosthodontics, Xiangya School of Stomatology, Central South University, Changsha, China
| | - C Fang
- Department of Stomatology, Xiangya Hospital, Central South University, Changsha, China
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18
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Guo Y, Zhang X, Cao R, Sun L, Huang L, Zhao J, Ma J, Han C. P1.17 Comparison of Genetic Profiles of Pulmonary Sarcomatoid Carcinoma (PSC) Between Asian and Western Populations. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.09.074] [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: 11/27/2022]
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19
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Masselli G, De Vincentiis C, Aloi M, Guida M, Cao R, Cartocci G, Miele V, Grassi R. Detection of Crohn’s disease with diffusion images versus contrast-enhanced images in pediatric using MR enterography with histopathological correlation. Radiol Med 2019; 124:1306-1314. [DOI: 10.1007/s11547-019-01067-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Accepted: 07/07/2019] [Indexed: 02/07/2023]
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20
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Li J, Yao M, Zhu X, Li Q, He J, Chen L, Wang W, Zhu C, Shen T, Cao R, Fang C. YAP-Induced Endothelial-Mesenchymal Transition in Oral Submucous Fibrosis. J Dent Res 2019; 98:920-929. [PMID: 31282845 DOI: 10.1177/0022034519851804] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Oral submucous fibrosis (OSF) is a potentially malignant disorder. Current studies have shown that chewing areca nut is considered the main cause of OSF, and endothelial-mesenchymal transformation (EndMT) participates in the occurrence and development of the fibrotic lesion. However, the specific molecular mechanisms and treatments remain unclear. Here, we report the mechanism of arecoline-induced EndMT and the importance of this mechanism in OSF, and we also identify potential therapeutics for decreasing OSF incidence. We demonstrate the overexpression of Yes-associated protein (YAP) in human samples and that it was significantly associated with OSF pathologic stage. Arecoline activated YAP by increasing reactive oxygen species levels and inducing the PERK pathway (eukaryotic translation initiation factor 2 alpha kinase 3), resulting in the initiation of EndMT and leading to OSF. Verteporfin, a YAP–TEA domain pathway inhibitor, suppressed EndMT and decreased collagen accumulation, resulting in the alleviation of OSF in mice. These data indicate that arecoline regulates the activity of YAP and highlight an alternative method for treating OSF.
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Affiliation(s)
- J. Li
- Department of Stomatology, Xiangya Hospital, Central South University, Changsha, China
- Center for Molecular Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - M. Yao
- Department of Stomatology, Xiangya Hospital, Central South University, Changsha, China
| | - X. Zhu
- Department of Stomatology, Xiangya Hospital, Central South University, Changsha, China
| | - Q. Li
- Department of Stomatology, the Second Xiangya Hospital, Central South University, Changsha, China
| | - J. He
- Center for Molecular Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - L. Chen
- Center for Molecular Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - W. Wang
- Department of Stomatology, Xiangya Hospital, Central South University, Changsha, China
| | - C. Zhu
- Department of Stomatology, Xiangya Hospital, Central South University, Changsha, China
| | - T. Shen
- Department of Stomatology, Xiangya Hospital, Central South University, Changsha, China
| | - R. Cao
- Department of Prosthodontics, Xiangya School of Stomatology, Central South University, Changsha, China
| | - C. Fang
- Department of Stomatology, Xiangya Hospital, Central South University, Changsha, China
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21
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Zheng CY, Cao R, Hong WS, Sheng MC, Hu YJ. Marsupialisation for the treatment of unicystic ameloblastoma of the mandible: a long-term follow up of 116 cases. Br J Oral Maxillofac Surg 2019; 57:655-662. [PMID: 31230852 DOI: 10.1016/j.bjoms.2019.06.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Accepted: 06/05/2019] [Indexed: 12/01/2022]
Abstract
Unicystic ameloblastoma is a unique histopathological type of ameloblastoma, and treatment is controversial. Marsupialisation is effective in reducing the size of cystic lesions and their complications. We have retrospectively analysed the clinical, histopathological, and prognostic data of affected patients who were treated by marsupialisation between 2003 and 2013 in three Chinese hospitals. Our aim was to evaluate the effects and prognosis, and the factors associated with outcome. A total of 116 patients with mandibular unicystic ameloblastomas were included, and 74, 26, and 16 patients were histopathologically classified as being luminal, intraluminal, and mural subtypes, respectively. Most responded well to marsupialisation, with an overall recurrence rate of 12%. Resorption of the root (p<0.001), perforation of the cortical bone (p=0.005), and histopathological subtype (p=0.013) were the main factors that predicted the outcome. Perforation of the cortical bone was the only reliable predictor of recurrence (p<0.001). Disease-free survival function curves indicated that patients with the mural subtype were at a higher risk of recurrence than patients with the other two subtypes (p=0.003). Poor outcomes of marsupialisation were treated surgically and, to date, no subsequent recurrences have been reported. Marsupialisation is effective for these patients, with a recurrence rate similar to that of radical treatment. The outcomes can be predicted using characteristics of the lesion such as resorption of the root, perforation of the cortical bone, and histopathological subtypes. However, additional studies are required to corroborate these findings.
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Affiliation(s)
- C Y Zheng
- Department of Oral and Maxillofacial Surgery, First Affiliated Hospital of Huzhou University, Guangchanghou Road No. 158, Wuxing District, Huzhou, 313000, Zhejiang, PR China.
| | - R Cao
- Department of Oral and Maxillofacial Surgery, Second People's Hospital of Changshu, Haiyunan Road No. 68, Yushan District, Changshu, 215500, Jiangsu, PR China
| | - W S Hong
- Department of Oral and Maxillofacial Surgery, First Affiliated Hospital of Huzhou University, Guangchanghou Road No. 158, Wuxing District, Huzhou, 313000, Zhejiang, PR China
| | - M C Sheng
- Department of Oral and Maxillofacial Surgery, First Affiliated Hospital of Huzhou University, Guangchanghou Road No. 158, Wuxing District, Huzhou, 313000, Zhejiang, PR China
| | - Y J Hu
- Department of Oral-Maxillofacial Head and Neck Oncology, Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Zhizaoju Road, No. 639, Huangpu District, Shanghai, 200011, PR China.
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22
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Alisi L, Cao R, De Angelis C, Cafolla A, Caramia F, Cartocci G, Librando A, Fiorelli M. The Relationships Between Vitamin K and Cognition: A Review of Current Evidence. Front Neurol 2019; 10:239. [PMID: 30949117 PMCID: PMC6436180 DOI: 10.3389/fneur.2019.00239] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Accepted: 02/22/2019] [Indexed: 12/11/2022] Open
Abstract
Vitamin K is a fat-soluble nutrient discovered in 1935 and its role in blood coagulation has been thoroughly explored. In recent years, studies conducted in vitro and on animals highlighted vitamin K involvement in brain cells development and survival. In particular, vitamin K seems to have an antiapoptotic and anti-inflammatory effect mediated by the activation of Growth Arrest Specific Gene 6 and Protein S. Moreover, this vitamin is involved in sphingolipids metabolism, a class of lipids that participate in the proliferation, differentiation, and survival of brain cells. An altered expression in sphingolipids profile has been related to neuroinflammation and neurodegeneration. This review stems from a growing interest in the role of vitamin K in brain functions, especially in cognition, also in view of an expected increase of prevalence of Alzheimer's disease and other forms of dementia. It collects recent researches that show interesting, even though not definitive, evidence of a direct correlation between vitamin K levels and cognitive performance. Moreover, vitamin K antagonists, used worldwide as oral anticoagulants, according to recent studies may have a negative influence on cognitive domains such as visual memory, verbal fluency and brain volume. The aim of this review is to analyze the evidence of clinical studies carried out up to date on the relationship between vitamin K intake and cognitive performances. The involvement of vitamin K antagonists (VKAs) in declining cognitive performances is also addressed separately.
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Affiliation(s)
- Ludovico Alisi
- Department of Sense Organs, Sapienza University of Rome, Rome, Italy
| | - Roberta Cao
- Department of Radiology, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Cristina De Angelis
- Department of Radiological, Oncological and Anatomo-Pathological Sciences, Sapienza University of Rome, Rome, Italy
| | - Arturo Cafolla
- Department of Cell Biotechnology and Hematology, Sapienza University of Rome, Rome, Italy
| | - Francesca Caramia
- Department of Human Neuroscience, Sapienza University of Rome, Rome, Italy
| | - Gaia Cartocci
- Department of Human Neuroscience, Sapienza University of Rome, Rome, Italy
| | - Aloisa Librando
- Department of Sense Organs, Sapienza University of Rome, Rome, Italy
| | - Marco Fiorelli
- Department of Human Neuroscience, Sapienza University of Rome, Rome, Italy
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23
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Xing W, Li Q, Sun G, Cao R, Chen B, Jiang C, Ma L, Wang K. Abstract P6-02-14: Not presented. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-p6-02-14] [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
This abstract was not presented at the conference.
Citation Format: Xing W, Li Q, Sun G, Cao R, Chen B, Jiang C, Ma L, Wang K. Not presented [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P6-02-14.
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Affiliation(s)
- W Xing
- China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - Q Li
- China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - G Sun
- China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - R Cao
- China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - B Chen
- China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - C Jiang
- China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - L Ma
- China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - K Wang
- China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
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24
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Xing W, Li Q, Cao R, Sun G, Jiang C. Abstract P2-01-25: Not presented. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-p2-01-25] [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
This abstract was not presented at the conference.
Citation Format: Xing W, Li Q, Cao R, Sun G, Jiang C. Not presented [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P2-01-25.
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Affiliation(s)
- W Xing
- China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - Q Li
- China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - R Cao
- China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - G Sun
- China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - C Jiang
- China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
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25
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Jia CH, Cao R, Kuai XP, Zhang HQ, Ding QG. [Conventional and functional MRI features of parotid Warthin tumor: correlation with clinicopathological findings]. Zhonghua Kou Qiang Yi Xue Za Zhi 2019; 54:94-100. [PMID: 30695910 DOI: 10.3760/cma.j.issn.1002-0098.2019.02.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To assess the conventional and functional MRI features of parotid Warthin tumor (adenolymphoma) and to investigate the correlation between MRI and clinicopathological features which can provide evidence for clinical diagnosis and treatment. Methods: Sixty-seven patients with parotid Warthin tumor who were treated in the Department of Stomatology, The Fifth Clinical Medical College of Yangzhou University, Changshu No. 2 People's Hospital from June 2008 to April 2017 were included in this study. The retrospective study evaluated preoperative conventional and functional MRI features and clinicopathological findings of this group of patients. Among 67 patients (65 males, 2 females) with 92 lesions, there were 16 patients with multiple lesions and others with single lesion. Their age was (62.1±8.8) years, ranging from 42 to 84 years. According to pathological features, parotid Warthin tumor were classified into two types. Type Ⅰ was predominantly solid component which included completely solid or solid tumor with some cystic components. Type Ⅱ was predominantly cystic component which was characterized by big cyst with some solid components, and could be divided into capsule-like and scum-like cystic type, based on whether its interface of solid and cystic component was clear or not. On contrast-enhanced MRI, according to whether the lesion showed enhancement or not, solid or cystic component was defined. Results: Seventy-two lesions were located in the lower pole of the parotid gland, of which sixty-eight lesions were located in posterior inferior quadrant. In addition, sixteen lesions were located in the upper pole and four lesions in the middle. Because MRI features were consistent with pathological findings, parotid Warthin tumor were classified into solid (73) and cystic types (19). On T2WI, solid components showed isointense (92), whereas on T1WI cystic components demonstrated hyperintense (90). On contrast enhanced T1WI, solid types showed marginal vasculature sign (73), mild (69) or moderate (4) enhancement, whereas its cystic component showed no enhancement. On contrast enhanced T1WI, cystic types showed ring-like enhancement of cycle-wall and intra-cystic septal linear enhancement, whereas its solid components demonstrated mild enhancement (19). On diffusion weighted imaging, these masses demonstrated hyperintensity and lower apparent diffusion coefficient value indicating restricted diffusion (59/59). On dynamic contrast-enhanced-MRI, the masses showed "wash-out" pattern (28/29) or plateau pattern (1/29). Conclusions: Parotid Warthin tumor mainly occur in the posterior inferior quadrant of parotid gland and mostly in mid-aged or elder men. It has certain characteristics on conventional and function MRI. There is correlation between MRI and clinicopathological findings and it is useful for accurate diagnosis and treatment to understand these features.
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Affiliation(s)
- C H Jia
- Department of Radiology, The Fifth Clinical Medical College of Yangzhou University, Changshu No. 2 People's Hospital, Changshu 215500, China
| | - R Cao
- Department of Stomatology, The Fifth Clinical Medical College of Yangzhou University, Changshu No.2 People's Hospital, Changshu 215500, China
| | - X P Kuai
- Department of Radiology, The Fifth Clinical Medical College of Yangzhou University, Changshu No. 2 People's Hospital, Changshu 215500, China
| | - H Q Zhang
- Department of Radiology, The Fifth Clinical Medical College of Yangzhou University, Changshu No. 2 People's Hospital, Changshu 215500, China
| | - Q G Ding
- Department of Radiology, The Fifth Clinical Medical College of Yangzhou University, Changshu No. 2 People's Hospital, Changshu 215500, China
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Zheng C, Cao R, Gao M, Huang Z, Sheng M, Hu Y. Comparison of surgical techniques for benign parotid tumours: a multicentre retrospective study. Int J Oral Maxillofac Surg 2019; 48:187-192. [DOI: 10.1016/j.ijom.2018.07.023] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 07/12/2018] [Accepted: 07/27/2018] [Indexed: 11/25/2022]
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27
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Liang ZN, Li XM, Zhang ZY, Yu ZY, Cao R. Halide Anion Templated Synthesis and Structural Characterization of Rhombic Dodecahedron Silver-Alkynyl Cage Complexes. RUSS J COORD CHEM+ 2019. [DOI: 10.1134/s1070328418120059] [Citation(s) in RCA: 1] [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: 11/23/2022]
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28
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Li Y, Lea K, Kshatriya P, Cao R, Gu J, Schageman J, Bagai V, Hanif K, Bramlett K. PO-086 An efficient ion torrent™ next generation sequencing workflow for liquid biopsy research to assess cell-free total nucleic acid. ESMO Open 2018. [DOI: 10.1136/esmoopen-2018-eacr25.614] [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: 11/03/2022] Open
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29
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Ran M, Li Z, Cao R, Weng B, Peng F, He C, Chen B. miR-26a suppresses autophagy in swine Sertoli cells by targeting ULK2. Reprod Domest Anim 2018; 53:864-871. [PMID: 29761550 DOI: 10.1111/rda.13177] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Accepted: 02/24/2018] [Indexed: 12/28/2022]
Abstract
A large number of microRNAs (miRNAs) have been detected from porcine testicular tissues thanks to the development of high-throughput sequencing technology. However, the regulatory roles of most identified miRNAs in swine testicular development or spermatogenesis are poorly understood. In our previous study, ULK2 (uncoordinated-51-like kinase 2) was predicted as a target gene of miR-26a. In this study, we aimed to investigate the role of miR-26a in swine Sertoli cell autophagy. The relative expression of miR-26a and ULK2 levels has a significant negative correlation (R2 = .5964, p ≤ .01) in nine developmental stages of swine testicular tissue. Dual-luciferase reporter assay results show that miR-26a directly targets the 3'UTR of the ULK2 gene (position 618-624). In addition, both the mRNA and protein expression of ULK2 were downregulated by miR-26a in swine Sertoli cells. These results indicate that miR-26a targets the ULK2 gene and downregulates its expression in swine Sertoli cells. Based on the expression of marker genes (LC3, p62 and Beclin-1), overexpression of miR-26a or knock-down of ULK2 inhibits swine Sertoli cell autophagy. Taken together, these findings demonstrate that miR-26a suppresses autophagy in swine Sertoli cells by targeting ULK2.
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Affiliation(s)
- M Ran
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, Hunan, China.,Hunan Provincial Key Laboratory for Genetic Improvement of Domestic Animal, Changsha, China
| | - Z Li
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, Hunan, China.,Hunan Provincial Key Laboratory for Genetic Improvement of Domestic Animal, Changsha, China
| | - R Cao
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, Hunan, China.,Hunan Provincial Key Laboratory for Genetic Improvement of Domestic Animal, Changsha, China
| | - B Weng
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, Hunan, China.,Hunan Provincial Key Laboratory for Genetic Improvement of Domestic Animal, Changsha, China
| | - F Peng
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, Hunan, China.,Hunan Provincial Key Laboratory for Genetic Improvement of Domestic Animal, Changsha, China
| | - C He
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, Hunan, China.,Hunan Provincial Key Laboratory for Genetic Improvement of Domestic Animal, Changsha, China
| | - B Chen
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, Hunan, China.,Hunan Provincial Key Laboratory for Genetic Improvement of Domestic Animal, Changsha, China
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30
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Zhu J, Huang HY, Mao AY, Sun ZX, Qiu WQ, Lei HK, Dong P, Huang JW, Bai YN, Sun XJ, Liu GX, Wang DB, Liao XZ, Ren JS, Guo LW, Lan L, Zhou Q, Song BB, Liu YQ, Du LB, Zhu L, Cao R, Wang JL, Mai L, Ren Y, Zhou JY, Sun XH, Wu SL, Qi X, Lou PA, Cai B, Li N, Zhang K, He J, Dai M, Shi JF. [Preference on screening frequency and willingness-to-pay for multiple-cancer packaging screening programs in urban populations in China]. Zhonghua Liu Xing Bing Xue Za Zhi 2018; 39:157-164. [PMID: 29495198 DOI: 10.3760/cma.j.issn.0254-6450.2018.02.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Objective: From an actual cancer screening service demanders' perspective, we tried to understand the preference on screening frequency and willingness-to-pay for the packaging screening program on common cancers and to evaluate its long-term sustainability in urban populations in China. Methods: From 2012 to 2014, a multi-center cross-sectional survey was conducted among the actual screening participants from 13 provinces covered by the Cancer Screening Program in Urban China (CanSPUC). By face-to-face interview, information regarding to preference to screening frequency, willingness-to-pay for packaging screening program, maximum amount on payment and related reasons for unwillingness were investigated. Results: A total of 31 029 participants were included in this survey, with an average age as (55.2±7.5) years and median annual income per family as 25 000 Chinese Yuan. People's preference to screening frequency varied under different assumptions ( " totally free" and "self-paid" ). When the packaging screening was assumed totally free, 93.9% of residents would prefer to take the screening program every 1 to 3 years. However, the corresponding proportion dropped to 67.3% when assuming a self-paid pattern. 76.7% of the participants had the willingness-to-pay for the packaging screening, but only 11.2% of them would like to pay more than 500 Chinese Yuan (the expenditure of the particular packaging screening were about 1 500 Chinese Yuan). The remaining 23.3% of residents showed no willingness-to-pay, and the main reasons were unaffordable expenditure (71.7%) and feeling'no need'(40.4%). Conclusions: People who participated in the CanSPUC program generally tended to choose high-frequency packaging screening program, indicating the high potential acceptance for scale-up packaging screening, while it needs cautious assessments and rational guidance to the public. Although about seven in ten of the residents were willing to pay, the payment amount was limited, revealing the necessity of strengthening individual's awareness of his or her key role in health self-management, and a reasonable payment proportion should be considered when establishing co-compensation mechanism.
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Affiliation(s)
- J Zhu
- National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - H Y Huang
- National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - A Y Mao
- Institute of Medical Information, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100020, China
| | - Z X Sun
- Harbin Center for Disease Control and Prevention, Harbin 150056, China
| | - W Q Qiu
- Institute of Medical Information, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100020, China
| | - H K Lei
- Chongqing Cancer Institute, Chongqing 400030, China
| | - P Dong
- Institute of Medical Information, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100020, China
| | - J W Huang
- Institute of Medical Information, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100020, China
| | - Y N Bai
- Institute of Epidemiology and Health Statistics, School of Public Health, Lanzhou University, Lanzhou 730000, China
| | - X J Sun
- Center for Health Management and Policy of Shandong University, Jinan 250012, China
| | - G X Liu
- Harbin Medical University, Harbin 150081, China
| | - D B Wang
- School of Medical Administration, Anhui Medical University, Hefei 230032, China
| | - X Z Liao
- Hunan Provincial Cancer Hospital, Changsha 410006, China
| | - J S Ren
- National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - L W Guo
- Henan Cancer Hospital, Zhengzhou 450008, China
| | - L Lan
- Harbin Center for Disease Control and Prevention, Harbin 150056, China
| | - Q Zhou
- Chongqing Cancer Institute, Chongqing 400030, China
| | - B B Song
- Affiliated Cancer Hospital of Harbin Medical University, Harbin 150081, China
| | - Y Q Liu
- Gansu Provincial Cancer Hospital, Lanzhou 730050, China
| | - L B Du
- Zhejiang Cancer Hospital, Hangzhou 310022, China
| | - L Zhu
- Affiliated Cancer Hospital of Xinjiang Medical University, Urumqi 830011, China
| | - R Cao
- Guangdong Provincial Institute of Public Health, Guangzhou 511430, China
| | - J L Wang
- Shandong Tumor Hospital, Jinan 250117, China
| | - L Mai
- Henan Cancer Hospital, Zhengzhou 450008, China
| | - Y Ren
- Tieling Central Hospital, Tieling 112000, China
| | - J Y Zhou
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China
| | - X H Sun
- Ningbo No.2 Hospital, Ningbo 315010, China
| | - S L Wu
- Kailuan General Hospital, Tangshan 063000, China
| | - X Qi
- Tangshan People's Hospital, Tangshan 063001, China
| | - P A Lou
- Xuzhou Center for Disease Control and Prevention, Xuzhou 221006, China
| | - B Cai
- Nantong Tumor Hospital, Nantong 226000, China
| | - N Li
- National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - K Zhang
- National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - J He
- National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - M Dai
- National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - J F Shi
- National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
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Abstract
AIM To understand Chinese nurses' perceptions of health beliefs, their content, origin and the influence of sociocultural factors, as a basis of their evidence-based practice. This study contributes to a larger study to establish the health beliefs of Japanese, Australian, Chinese, South Korean and Thai nurses. BACKGROUND Registered nurses teach patients and students about maintaining or attaining health are subject to the same range of influences and their health beliefs may be antithetical to current health evidence. METHODS Q-method design using q-sort and interview was used to explore the perspectives on a range of health beliefs of 60 nurses in four cities in China. FINDINGS Three factors arose from the perceptions of the participants about health and accounted for 50.2% of the total variance: (1) social impact, (2) 'the importance of evidence', and (3) beliefs rooted in culture. DISCUSSION Influence on nurses' health beliefs was explored in terms of the internalized and frequently unconscious beliefs, values and norms tying them to their communities, reflecting the need for nurses to be aware of their health beliefs and behaviours. CONCLUSIONS Education for nurses in practice needs to acknowledge that individual practitioners' beliefs strongly influence health teaching for patients and families. In order to implement evidenced-based practice and teach in line with current evidence nurses need to critically examine and reflect on the impact of culture, society and the media on their own health beliefs. IMPLICATIONS FOR NURSING POLICY AND HEALTH POLICY Education policy needs to consider that culture and societal pressures affect nurses' health beliefs and practice. Critical thinking, reflective and evidence-based practice need to be emphasized in clinical training and nurse education. China also needs to develop policies to allow nurses to be able to assess the reliability of health information on the Internet and to make quality health research more available.
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Affiliation(s)
- R Cao
- School of Health Sciences, Wuhan University, Wuhan, China.,Zhongnan Hospital of Wuhan University, China
| | - T E Stone
- Chiang Mai University, Chiang Mai, Thailand
| | - M A Petrini
- Chiang Mai University, Chiang Mai, Thailand.,HOPE School of Nursing, Wuhan University, Wuhan, China
| | - S Turale
- Chiang Mai University, Chiang Mai, Thailand.,International Nursing Review, International Council of Nurses, Geneva, Switzerland
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Wang X, Bai Y, Cao R, Yang X, Xiao W, Zhang Y, Wu H, Zhao D, Ye P. P635Plasma Proprotein Convertase Subtilisin/Kexin Type 9 (PCSK9) level is associated with cardiovascular events: Findings from a community-based prospective study and a meta-analysis. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx501.p635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- X. Wang
- China PLA General Hospital, Department of Geriatric Cardiology, Beijing, China People's Republic of
| | - Y. Bai
- China PLA General Hospital, Department of Geriatric Cardiology, Beijing, China People's Republic of
| | - R. Cao
- China PLA General Hospital, Department of Geriatric Cardiology, Beijing, China People's Republic of
| | - X. Yang
- China PLA General Hospital, Department of Geriatric Cardiology, Beijing, China People's Republic of
| | - W. Xiao
- China PLA General Hospital, Department of Geriatric Cardiology, Beijing, China People's Republic of
| | - Y. Zhang
- China PLA General Hospital, Department of Geriatric Cardiology, Beijing, China People's Republic of
| | - H. Wu
- China PLA General Hospital, Department of Geriatric Cardiology, Beijing, China People's Republic of
| | - D. Zhao
- Beijing Anzhen Hospital, Department of Epidemiology, Beijing, China People's Republic of
| | - P. Ye
- China PLA General Hospital, Department of Geriatric Cardiology, Beijing, China People's Republic of
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Cao R, Deng ZL, Ma YH, Chen XL. Effect of EVA on thermal stability, flammability, mechanical properties of HDPE/EVA/Mg(OH)2 composites. ACTA ACUST UNITED AC 2017. [DOI: 10.1088/1757-899x/213/1/012002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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He BL, Xu N, Li YL, Pan CY, Cao R, Liao LB, Yin CX, Lan YQ, Lu ZY, Huang JX, Zhou HS, Liu QF, Liu XL. [Clinical analysis of adult Philadelphia chromosome-positive acute lymphoblastic leukemia with p16 gene deletion]. Zhonghua Xue Ye Xue Za Zhi 2017; 38:204-209. [PMID: 28395443 PMCID: PMC7348375 DOI: 10.3760/cma.j.issn.0253-2727.2017.03.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
目的 探讨p16基因缺失在成人Ph染色体阳性急性淋巴细胞白血病(Ph+ ALL)中的临床意义。 方法 回顾性分析80例Ph+ALL伴p16基因缺失患者的临床特征、免疫表型、细胞遗传学、分子生物学改变及其预后。 结果 31.3% Ph+ALL患者合并p16基因缺失;p16基因缺失组与非缺失组相比,初诊时高白细胞计数(WBC≥30×109/L)更常见,高表达CD20,更易出现附加染色体异常,其中以累及7、8、19号染色体以及der(22)较为常见;两组诱导缓解率比较差异无统计学意义(P=0.033),p16基因缺失组患者治疗3个疗程后获BCR-ABL融合基因主要分子学反应(MMR)率和完全分子学反应(CMR)率均明显低于非缺失组(P值分别为0.034和0.036),且复发率明显高于非缺失组(P=0.033);p16基因缺失组使用伊马替尼联合化疗者和使用达沙替尼联合化疗者的MMR、CMR率及复发率差异均无统计学意义(P值均>0.05);p16基因缺失组患者3年总体生存(OS)率及无病生存(DFS)率分别为37.1%和12.4%,显著低于非缺失组的54.1%和45.9%(P值分别为0.037和0.026);25例p16基因缺失患者中14例行异基因造血干细胞移植(allo-HSCT),其中位OS时间为21个月,明显长于非移植组患者的12个月(P=0.030)。 结论 成人Ph+ALL伴p16基因缺失患者预后相对较差,二代酪氨酸激酶抑制剂不能明显改善其疗效,但allo-HSCT能够改善部分患者的生存,明确p16基因缺失状态对于评估预后和指导临床治疗有重要意义。
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Affiliation(s)
- B L He
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
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Pan CY, Xu N, He BL, Cao R, Liao LB, Yin CX, Lan YQ, Lu ZY, Huang JX, Sun J, Feng R, Liu QF, Liu XL. [Clinical significance of cytogenetic monitoring in chronic myeloid leukemia]. Zhonghua Xue Ye Xue Za Zhi 2017; 38:112-117. [PMID: 28279034 PMCID: PMC7354167 DOI: 10.3760/cma.j.issn.0253-2727.2017.02.006] [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] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Objective: To analyze the association of cytogenetic abnormalities with the prognosis of chronic myeloid leukemia (CML) patients in tyrosine kinase inhibitors (TKI) era. Methods: Karyotype analysis of chromosome G-banding was carried out in 387 newly diagnosed CML patients by short-term culture of bone marrow cells. The correlation of cytogenetic abnormalities and CML progression was explored in combination with ABL tyrosine point mutations. Result: Of 387 patients with positive BCR-ABL fusion gene assayed by fluorescence in situ hybridization (FISH) technique, 94.1% (364/387) patients were Ph positive and 5.9% (23/387) Ph negative; 320 patients (87.9%) had a translocation t (9;22) (q34;q11) and 5 (1.4%) a variant translocation t (v;22) . Additional cytogenetic aberrations (ACA) at diagnosis were found in 10.7% (39/387) Ph(+) patients, major route ACA in 22 (56.4%) cases and minor route ACA in 15 (38.5%) cases and 2 patients (5.1%) lacked the Y chromosome (-Y) ; 23.4% (71/303) patients occurred ACA during TKI treatment and the most frequent abnormalities were abnormal chromosome numbersd, which were likely associated with high proportion of disease progression (χ(2)=168.21, P<0.001) and ABL tyrosine point mutations (χ(2)=29.04, P<0.001) . Newly diagnosed CML-CP patients with t (9;22) (q34;q11) had a longer event-free survival (EFS) and disease-free survival (DFS) rates than that of patients with ACA (P=0.037; P=0.003) , while the overall survival (OS) had no significant differences (P=0.209) . As for CML-CP patients that occurred ACA during TKI therapy would have a marked low OS, EFS and DFS (all P<0.001) compared with no ACA occurred patients. Survival of advanced patients that occurred ACA were dramatically reduced. Conclusion: ACA often emerged during the disease progress in CML patients, regular and timely detection of chromosomes karyotype and ABL tyrosine point mutations during TKI treatment was important for therapeutic evaluation, progress and prognosis of CML.
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Affiliation(s)
- C Y Pan
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
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Luo K, Wang W, Cao R, Feng W. Multiple hydrogen bonds-mediated formation of supramolecular polysiloxanes based on oligoamide duplexes. RUSS J GEN CHEM+ 2016. [DOI: 10.1134/s1070363216040289] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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37
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Hao X, Little C, Zheng J, Cao R. Far-red LEDs improve fruit production in greenhouse tomato grown under high-pressure sodium lighting. ACTA ACUST UNITED AC 2016. [DOI: 10.17660/actahortic.2016.1134.13] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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38
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Schulze A, Cao R, Eyben P, Hantschel T, Vandervorst W. Outwitting the series resistance in scanning spreading resistance microscopy. Ultramicroscopy 2015; 161:59-65. [PMID: 26624516 DOI: 10.1016/j.ultramic.2015.10.029] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2015] [Revised: 10/27/2015] [Accepted: 10/28/2015] [Indexed: 11/18/2022]
Abstract
The performance of nanoelectronics devices critically depends on the distribution of active dopants inside these structures. For this reason, dopant profiling has been defined as one of the major metrology challenges by the international technology roadmap of semiconductors. Scanning spreading resistance microscopy (SSRM) has evolved as one of the most viable approaches over the last decade due to its excellent spatial resolution, sensitivity and quantification accuracy. However, in case of advanced device architectures like fins and nanowires a proper measurement of the spreading resistance is often hampered by the increasing impact of parasitic series resistances (e.g. bulk series resistance) arising from the confined nature of the aforementioned structures. In order to overcome this limitation we report in this paper the development and implementation of a novel SSRM mode (fast Fourier transform-SSRM: FFT-SSRM) which essentially decouples the spreading resistance from parasitic series resistance components. We show that this can be achieved by a force modulation (leading to a modulated spreading resistance signal) in combination with a lock-in deconvolution concept. In this paper we first introduce the principle of operation of the technique. We discuss in detail the underlying physical mechanisms as well as the technical implementation on a state-of-the-art atomic force microscope (AFM). We demonstrate the performance of FFT-SSRM and its ability to remove substantial series resistance components in practice. Eventually, the possibility of decoupling the spreading resistance from the intrinsic probe resistance will be demonstrated and discussed.
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Affiliation(s)
- A Schulze
- IMEC, Kapeldreef 75, 3001 Leuven, Belgium.
| | - R Cao
- IMEC, Kapeldreef 75, 3001 Leuven, Belgium
| | - P Eyben
- IMEC, Kapeldreef 75, 3001 Leuven, Belgium
| | | | - W Vandervorst
- IMEC, Kapeldreef 75, 3001 Leuven, Belgium; KU Leuven, Department of Physics and Astronomy, Celestijnenlaan 200D, 3001 Leuven, Belgium
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Ren Q, Cao R, Pei X, Wang H, Hu L. SU-C-BRD-07: Three-Dimensional Dose Reconstruction in the Presence of Inhomogeneities Using Fast EPID-Based Back-Projection Method. Med Phys 2015. [DOI: 10.1118/1.4923803] [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: 11/07/2022] Open
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40
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Xie C, Lin H, Jing J, Chen C, Cao R, Pei X. SU-E-T-47: A Monte Carlo Model of a Spot Scanning Proton Beam Based On a Synchrotron Proton Therapy Accelerator. Med Phys 2015. [DOI: 10.1118/1.4924408] [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: 11/07/2022] Open
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41
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Jia J, Cao R, Pei X, Wang H, Hu L. SU-E-J-191: Motion Prediction Using Extreme Learning Machine in Image Guided Radiotherapy. Med Phys 2015. [DOI: 10.1118/1.4924277] [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: 11/07/2022] Open
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42
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Hu D, Wang X, Cao R, Ding X. Effects of down-regulated steroidogenic factor-1 on ACTH and potassium chloride-induced steroid synthesis in H295R cells. Cell Mol Biol (Noisy-le-grand) 2015; 61:51-55. [PMID: 25817346] [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] [Received: 01/12/2015] [Accepted: 03/20/2015] [Indexed: 06/04/2023]
Abstract
The prevalence of adrenal diseases in the cortex is more common than that in the medulla in the form of hormone disorder or neoplasm. Steroidogenic factor—1 (SF—1) is important in regulating aldosterone synthase (CYP11B2) and cortisol synthase (CYP11B1). SF—1 is increased in aldosterone—producing adenoma (APA) and cortisol—producing adenoma (CPA). Overexpression of SF—1 has been extensively studied, but the available in—depth information regarding the effects of downregulated SF—1 on CYP11B2/CYP11B1 and their regulators is limited. In this paper, we attempted to investigate the effects of downregulated SF—1 on aldosterone to adrenocorticotropic hormone (ACTH) and potassium chloride (KCl) stimulation and those on cortisol to ACTH stimulation through RNA interference in acute and chronic phases. Downregulated SF—1 decreased the sensitivity of aldosterone to ACTH/KCl and that of cortisol to ACTH stimulation. This study provides new insights into the influence of SF—1 on adrenocortical diseases by considering the effects of SF—1 on regulation.
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Affiliation(s)
- D Hu
- Zhongnan Hospital of Wuhan University Department of urology, Wuhan China hdlhdl2008@163.com
| | - X Wang
- Zhongnan Hospital of Wuhan University Department of urology, Wuhan China
| | - R Cao
- Zhongnan Hospital of Wuhan University Department of urology, Wuhan China
| | - X Ding
- Zhongnan Hospital of Wuhan University Department of urology, Wuhan China
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Coelho AC, Cannon DT, Cao R, Porszasz J, Casaburi R, Knorst MM, Rossiter HB. Instantaneous quantification of skeletal muscle activation, power production, and fatigue during cycle ergometry. J Appl Physiol (1985) 2014; 118:646-54. [PMID: 25539940 DOI: 10.1152/japplphysiol.00948.2014] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
A rapid switch from hyperbolic to isokinetic cycling allows the velocity-specific decline in maximal power to be measured, i.e., fatigue. We reasoned that, should the baseline relationship between isokinetic power (Piso) and electromyography (EMG) be reproducible, then contributions to fatigue may be isolated from 1) the decline in muscle activation (muscle activation fatigue); and 2) the decline in Piso at a given activation (muscle fatigue). We hypothesized that the EMG-Piso relationship is linear, velocity dependent, and reliable for instantaneous fatigue assessment at intolerance during and following whole body exercise. Healthy participants (n = 13) completed short (5 s) variable-effort isokinetic bouts at 50, 70, and 100 rpm to characterize baseline EMG-Piso. Repeated ramp incremental exercise tests were terminated with maximal isokinetic cycling (5 s) at 70 rpm. Individual baseline EMG-Piso relationships were linear (r(2) = 0.95 ± 0.04) and velocity dependent (analysis of covariance). Piso at intolerance (two legs, 335 ± 88 W) was ∼45% less than baseline [630 ± 156 W, confidence interval of the difference (CIDifference) 211, 380 W, P < 0.05]. Following intolerance, Piso recovered rapidly (F = 44.1; P < 0.05; η(2) = 0.79): power was reduced (P < 0.05) vs. baseline only at 0-min (CIDifference 80, 201 W) and 1-min recovery (CIDifference 13, 80 W). Activation fatigue and muscle fatigue (one leg) were 97 ± 55 and 60 ± 50 W, respectively. Mean bias ± limits of agreement for reproducibility were as follows: baseline Piso 1 ± 30 W; Piso at 0-min recovery 3 ± 35 W; and EMG at Piso 3 ± 14%. EMG power is linear, velocity dependent, and reproducible. Deviation from this relationship at the limit of tolerance can quantify the "activation" and "muscle" related components of fatigue during cycling.
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Affiliation(s)
- A C Coelho
- Rehabilitation Clinical Trials Center, Division of Respiratory & Critical Care Physiology & Medicine, Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center, Los Angeles, California; Programa de Pós-Graduação em Ciências Pneumológicas, Universidade Federal do Rio Grande do Sul, Brazil; and
| | - D T Cannon
- Rehabilitation Clinical Trials Center, Division of Respiratory & Critical Care Physiology & Medicine, Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center, Los Angeles, California
| | - R Cao
- Rehabilitation Clinical Trials Center, Division of Respiratory & Critical Care Physiology & Medicine, Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center, Los Angeles, California
| | - J Porszasz
- Rehabilitation Clinical Trials Center, Division of Respiratory & Critical Care Physiology & Medicine, Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center, Los Angeles, California
| | - R Casaburi
- Rehabilitation Clinical Trials Center, Division of Respiratory & Critical Care Physiology & Medicine, Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center, Los Angeles, California
| | - M M Knorst
- Programa de Pós-Graduação em Ciências Pneumológicas, Universidade Federal do Rio Grande do Sul, Brazil; and
| | - H B Rossiter
- Rehabilitation Clinical Trials Center, Division of Respiratory & Critical Care Physiology & Medicine, Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center, Los Angeles, California; School of Biomedical Sciences, Faculty of Biological Sciences, University of Leeds, Leeds, United Kingdom
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Cao R, Castle M, Sawatwarakul W, Fairchild M, Kuehni R, Shamey R. Scaling perceived saturation. J Opt Soc Am A Opt Image Sci Vis 2014; 31:1773-1781. [PMID: 25121534 DOI: 10.1364/josaa.31.001773] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Two psychophysical experiments were conducted at North Carolina State University (NCSU) and Rochester Institute of Technology (RIT) to obtain replicated perceived saturation data from color normal observers on the order of one unit of saturation. The same 37 Munsell sample sheets, including up to four references that had similar perceived saturation but different hue, were used in both experiments. Different assessment methods included presenting either four references simultaneously or only one reference at a time to observers and obtaining judged saturation magnitudes for the given Munsell samples. Four saturation models comprising Sab*, Suv*, CIECAM02, as well as Richter/Lübbe, were tested. CIECAM02 gave the best prediction of saturation for data obtained at NCSU while Sab* outperformed other models for the RIT data. For the combined dataset, Sab*, the Richter/Lübbe, and CIECAM02-based saturation models exhibited comparable performances. The Standardized Residual Sum of Squares index was used to measure the inter- and intra-observer variability and goodness of fit. Inter- and intra-observer variability of assessments was smaller than or comparable to those reported for the typical color difference evaluation experiments.
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Shamey R, Cao R, Tomasino T, Zaidy SSH, Iqbal K, Lin J, Lee SG. Performance of select color-difference formulas in the blue region. J Opt Soc Am A Opt Image Sci Vis 2014; 31:1328-1336. [PMID: 24977373 DOI: 10.1364/josaa.31.001328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The main objective of this work was to test the performance of major formulas for assessment of small suprathreshold color differences in the blue region. The models examined include CIELAB color space based equations, including CIELAB, CIE94, CIEDE2000, CMC (l:c), BFD (l:c), and formulas based on more uniform color spaces, such as DIN99d, CAM02-SCD, CAM02-UCS, OSA-GP, and OSA-Eu in comparison against data obtained via visual assessments. For this purpose, a dataset around the CIE high-chroma blue color center, hereafter called NCSU-B2, was developed. The NCSU-B2 dataset comprised 65 textile substrates and a standard, with a mean ΔE(ab)* color difference of 2.72, ranging from 0.54-5.72. Samples were visually assessed by 26 subjects against the reference gray scale in three separate trials with at least 24 h between assessments. A total of 5070 assessments were obtained. The standardized residual sum of squares (STRESS) index was used to examine the performance of various formulas for this dataset, as well as a previously developed NCSU-B1 low-chroma blue dataset [Color Res. Appl. 36, 27, 2011], and blue centers from other established visual datasets. Results show that formulas based on more recent uniform color spaces provide better agreement with perceptual data compared with models based on CIELAB space.
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Wu Q, Pei X, Cao R, Hu L, Wu Y. SU-E-J-08: A Hybrid Three Dimensional Registration Framework for Image-Guided Accurate Radiotherapy System ARTS-IGRT. Med Phys 2014. [DOI: 10.1118/1.4888059] [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: 11/07/2022] Open
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Yang RH, Lin J, Hou XH, Cao R, Yu F, Liu HQ, Ji AL, Xu XN, Zhang L, Wang F. Effect of docosahexaenoic acid on hippocampal neurons in high-glucose condition: involvement of PI3K/AKT/nuclear factor-κB-mediated inflammatory pathways. Neuroscience 2014; 274:218-28. [PMID: 24881575 DOI: 10.1016/j.neuroscience.2014.05.042] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2014] [Revised: 05/17/2014] [Accepted: 05/21/2014] [Indexed: 12/01/2022]
Abstract
Accumulating evidence suggested that hyperglycemia played a critical role in hippocampus dysfunction in patients with diabetes mellitus. However, the multifactorial pathogenesis of hyperglycemia-induced impairments of hippocampal neurons has not been fully elucidated. Docosahexaenoic acid (DHA) has been shown to enhance learning and memory and affect neural function in various experimental conditions. The present study investigated the effects of DHA on the lipid peroxidation, the level of inflammatory cytokines and neuron apoptosis in the hippocampal neurons in high-glucose condition. High-glucose administration increased the level of tumor necrosis factor α (TNF-α) and IL-6, induced oxidative stress and apoptosis of hippocampal neurons in vitro. DHA treatment reduced oxidative stress and TNF-α expression, protected the hippocampal neurons by increasing AKT phosphorylation and decreasing caspase-3 and caspase-9 expression. These results suggested that high-glucose exposure induced injury of hippocampal neurons in vitro, and the principle mechanisms involved in the neuroprotective effect of DHA were its antioxidant and anti-apoptotic potential. DHA may thus be of use in preventing or treating neuron-degeneration resulting from hyperglycemia.
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Affiliation(s)
- R-H Yang
- Department of Nutrition and Food Hygiene, The Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, The Fourth Military Medical University, Xi'an 710032, PR China.
| | - J Lin
- Department of Nutrition and Food Hygiene, The Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, The Fourth Military Medical University, Xi'an 710032, PR China
| | - X-H Hou
- Department of Nutrition and Food Hygiene, The Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, The Fourth Military Medical University, Xi'an 710032, PR China
| | - R Cao
- Department of Nutrition and Food Hygiene, The Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, The Fourth Military Medical University, Xi'an 710032, PR China
| | - F Yu
- Department of Nutrition and Food Hygiene, The Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, The Fourth Military Medical University, Xi'an 710032, PR China
| | - H-Q Liu
- Department of Nutrition and Food Hygiene, The Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, The Fourth Military Medical University, Xi'an 710032, PR China
| | - A-L Ji
- Department of Nutrition and Food Hygiene, The Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, The Fourth Military Medical University, Xi'an 710032, PR China
| | - X-N Xu
- Department of Nutrition and Food Hygiene, The Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, The Fourth Military Medical University, Xi'an 710032, PR China
| | - L Zhang
- Department of Nutrition and Food Hygiene, The Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, The Fourth Military Medical University, Xi'an 710032, PR China
| | - F Wang
- Department of Nutrition and Food Hygiene, The Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, The Fourth Military Medical University, Xi'an 710032, PR China.
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Xiong B, Ruan L, Gu GB, Guo SQ, Cao R, Li ZG, Lu W, Zhang XZ, Sun LT, Zhao HW. Application of evaporative cooling technology in super-high power density magnet. Rev Sci Instrum 2014; 85:02A913. [PMID: 24593492 DOI: 10.1063/1.4827113] [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] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Evaporative cooling technology utilizes phase-change heat transfer mode to achieve the cooling for heating equipment. The heat transfer capacity of evaporative cooling technology is far more than air or water cooling technology. The Electron Cyclotron Resonance ion source magnet is a typical super-high power density magnet, and the evaporative cooling technology is an ideal cooling method for the coils of magnet. In this paper we show the structure and process of coils and the special design of flow channels of coolant for an experiment magnet model. Additionally, the heat transfer circulation is presented and analyzed. By the finite element method, the flow channels are optimized to rationally allocate coolant and to reduce the temperature of coils. For the experiment model, the current density of copper wire of coils is 19 A/mm(2), and the coil-windows current density is larger than 12 A/mm(2). The max temperature of coils is below 80 °C, and the total heat is about 200 kW.
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Affiliation(s)
- B Xiong
- Institute of Electrical Engineering, CAS, Beijing 100190, China
| | - L Ruan
- Institute of Electrical Engineering, CAS, Beijing 100190, China
| | - G B Gu
- Institute of Electrical Engineering, CAS, Beijing 100190, China
| | - S Q Guo
- Institute of Electrical Engineering, CAS, Beijing 100190, China
| | - R Cao
- Institute of Electrical Engineering, CAS, Beijing 100190, China
| | - Z G Li
- Institute of Electrical Engineering, CAS, Beijing 100190, China
| | - W Lu
- Institute of Modern Physics, CAS, Lanzhou 73000, China
| | - X Z Zhang
- Institute of Modern Physics, CAS, Lanzhou 73000, China
| | - L T Sun
- Institute of Modern Physics, CAS, Lanzhou 73000, China
| | - H W Zhao
- Institute of Modern Physics, CAS, Lanzhou 73000, China
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Lu W, Xiong B, Zhang XZ, Sun LT, Feng YC, Ma BH, Guo SQ, Cao R, Ruan L, Zhao HW. Progress of a room temperature electron cyclotron resonance ion source using evaporative cooling technology at Institute of Modern Physics. Rev Sci Instrum 2014; 85:02A926. [PMID: 24593505 DOI: 10.1063/1.4827575] [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] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A new room temperature ECR ion source, Lanzhou Electron Cyclotron Resonance ion source No. 4 (LECR4, previously named DRAGON), is under intense construction at Institute of Modern Physics. LECR4 is designed to operate with 18 GHz microwave frequency. The maximum axial magnetic fields are 2.3 T at injection and 1.3 T at extraction, and the radial field at the plasma chamber wall of 76 mm inner diameter is 1.0-1.2 T. One of the unique features for LECR4 is that its axial solenoids are winded with solid square copper wires which are immersed in a kind of special evaporative cooling medium for cooling purpose. Till now, a prototype of the cooling system has been successfully constructed and tested, which has demonstrated that the cooling efficiency of the designed system could meet the requirements of LECR4 under the routine operation conditions. All the main components of the ion source have been completed. Assembly and commissioning is ongoing. The latest developments and test results will be presented in this paper.
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Affiliation(s)
- W Lu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 73000, China
| | - B Xiong
- Institute of Electrical Engineering, CAS, Beijing 100190, China
| | - X Z Zhang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 73000, China
| | - L T Sun
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 73000, China
| | - Y C Feng
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 73000, China
| | - B H Ma
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 73000, China
| | - S Q Guo
- Institute of Electrical Engineering, CAS, Beijing 100190, China
| | - R Cao
- Institute of Electrical Engineering, CAS, Beijing 100190, China
| | - L Ruan
- Institute of Electrical Engineering, CAS, Beijing 100190, China
| | - H W Zhao
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 73000, China
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