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Freir D, Kelly S, Hudson A, Richard G, Mullins G, Chalissery A, Lefter S. Acute and Chronic Demyelinating Polyneuropathy post AstraZeneca Covid-19 Vaccine. Ir Med J 2023; 116:842. [PMID: 37791845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 10/05/2023]
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Flynn F, Dobrescu MA, Richard G, Hassan C, Pigeon M, Chagnon M, Charbonney E, Serri K, D'Aragon F, Weiss MJ, Williamson D, Frenette AJ. Self-perceived role and knowledge of community pharmacists in organ donation. Int J Clin Pharm 2023:10.1007/s11096-023-01570-4. [PMID: 36977857 DOI: 10.1007/s11096-023-01570-4] [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: 07/22/2022] [Accepted: 03/03/2023] [Indexed: 03/30/2023]
Abstract
BACKGROUND Although a majority of North Americans is in favor of organ donation, registration remains challenging. Community pharmacists are highly accessible frontline health care professionals that could contribute to a new common registration donation consent system. AIM The objective of the study was to assess self-perceived professional role and organ donation knowledge of community pharmacists in Quebec. METHOD We designed a telephone interview survey using a three round modified Delphi process. Following questionnaires testing, we randomly sampled 329 community pharmacists in Quebec. Following administration, we validated the questionnaire by conducting an exploratory factorial analysis using principal component followed by a varimax rotation and rearranging domains and items accordingly. RESULTS A total of 443 pharmacists were contacted, 329 provided answers to the self-perception role and 216 of them completed the knowledge questionnaire. Overall, community pharmacists of Quebec had a positive view on organ donation and demonstrated interest in acquiring knowledge. Respondents have identified lack of time and high pharmacy attendance as non-limiting barriers to implementing the intervention. The average score on the knowledge questionnaire was 61.2%. CONCLUSION With the implementation of an appropriate education program to address this knowledge gap, we believe that community pharmacists could be key players in registered organ donation consent.
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Affiliation(s)
- Francis Flynn
- Pharmacy Department, Hôpital du Sacré-Coeur de Montréal, 5400 Boul. Gouin O, Local J-3240, Montreal, QC, H4J 1C5, Canada
- Faculté de Pharmacie, Université de Montréal, Montréal, Canada
| | - Marc-Alexandru Dobrescu
- Pharmacy Department, Hôpital du Sacré-Coeur de Montréal, 5400 Boul. Gouin O, Local J-3240, Montreal, QC, H4J 1C5, Canada
- Faculté de Pharmacie, Université de Montréal, Montréal, Canada
| | - Guillaume Richard
- Pharmacy Department, Hôpital du Sacré-Coeur de Montréal, 5400 Boul. Gouin O, Local J-3240, Montreal, QC, H4J 1C5, Canada
- Faculté de Pharmacie, Université de Montréal, Montréal, Canada
| | - Chadi Hassan
- Pharmacy Department, Hôpital du Sacré-Coeur de Montréal, 5400 Boul. Gouin O, Local J-3240, Montreal, QC, H4J 1C5, Canada
- Faculté de Pharmacie, Université de Montréal, Montréal, Canada
| | - Marjorie Pigeon
- Pharmacy Department, Hôpital du Sacré-Coeur de Montréal, 5400 Boul. Gouin O, Local J-3240, Montreal, QC, H4J 1C5, Canada
- Faculté de Pharmacie, Université de Montréal, Montréal, Canada
| | - Miguel Chagnon
- Statistics Consultation Service, Université de Montréal, Montréal, Canada
| | - Emmanuel Charbonney
- Critical Care Department, Centre Hospitalier de l'Université de Montréal, Montréal, Canada
- Faculté de Médecine, Université de Montréal, Montréal, Canada
| | - Karim Serri
- Faculté de Médecine, Université de Montréal, Montréal, Canada
- Critical Care and Cardiology Divisions, Hôpital du Sacré-Coeur de Montréal, Montreal, Canada
- Centre de Recherche CIUSSSS du Nord de L'Ile, Hôpital du Sacré-Coeur de Montréal, Montréal, Canada
| | | | - Matthew-John Weiss
- Population Health and Optimal Health Practices Research Unit, Trauma-Emergency-Critical Care Medicine, CHU de Québec, Université Laval Research Center, Quebec, QC, Canada
- Pediatrics Department, Intensive Care Division, Faculté de Médecine, Université Laval, Quebec, QC, Canada
- Transplant Québec, Montreal, QC, Canada
| | - David Williamson
- Pharmacy Department, Hôpital du Sacré-Coeur de Montréal, 5400 Boul. Gouin O, Local J-3240, Montreal, QC, H4J 1C5, Canada.
- Faculté de Pharmacie, Université de Montréal, Montréal, Canada.
- Centre de Recherche CIUSSSS du Nord de L'Ile, Hôpital du Sacré-Coeur de Montréal, Montréal, Canada.
| | - Anne Julie Frenette
- Pharmacy Department, Hôpital du Sacré-Coeur de Montréal, 5400 Boul. Gouin O, Local J-3240, Montreal, QC, H4J 1C5, Canada
- Faculté de Pharmacie, Université de Montréal, Montréal, Canada
- Centre de Recherche CIUSSSS du Nord de L'Ile, Hôpital du Sacré-Coeur de Montréal, Montréal, Canada
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Mehta J, Richard G, Lugosch L, Yu D, Meyer BH. DT-DS: CAN Intrusion Detection with Decision Tree Ensembles. ACM Trans Cyber-Phys Syst 2023. [DOI: 10.1145/3566132] [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: 01/22/2023]
Abstract
The controller area network (CAN) protocol, used in many modern vehicles for real-time inter-device communications, is known to have cybersecurity vulnerabilities, putting passengers at risk for data exfiltration and control system sabotage. To address this issue, researchers have proposed to utilize security measures based on cryptography and message authentication; unfortunately, such approaches are often too computationally expensive to be deployed in real-time on CAN devices. Additionally, they have developed machine learning (ML) techniques to detect anomalies in CAN traffic, and thereby prevent attacks. The main disadvantage of existing ML-based techniques is that they either depend on additional computational hardware, or they heuristically assume that all communication anomalies are malicious.
In this paper, we show that tree-based learning ensembles outperform anomaly-based techniques like ARIMA and Z-Score when used to detect attacks that result in increased bus utilization. We evaluated the detection capacity of three tree-based ensembles, Adaboost, gradient boosting, and random forests, and collectively refer to these as DT-DS. We conclude that the decision tree ensemble with Adaboost performs best with an area under curve (AUC) score of 0.999, closely followed by gradient boosting and random forests with 0.997 and 0.991 AUC scores, respectively, when trained using message profiles. We observe that with an increase in the observation window, the DT-DS models present an average AUC score of 0.999, and offer a nearly perfect detection of attacks, at the cost of increased latency in detection of attacked messages. We evaluate the performance of the IDS for ARINC-encoded CAN communication traffic in avionic systems, generated using an aerospace testbench, ARINC-825TBv2. The IDS has been evaluated against the active attacks of a state-of-the-art predictive attacker model. Additionally, we observed that the performance of IDS approaches such as ARIMA and Z-Score degrade considerably with a decrease in the size of the observation time window. In contrast, the performance of DT-DS models is consistent, with only an average drop of 0.005 in the AUC score.
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Okhai H, Sabin C, Haag K, Sherr L, Dhairyawan R, Shephard J, Richard G, Burns F, Post F, Jones R, Gilleece Y, Tariq S. The Prevalence and Patterns of Menopausal Symptoms in Women Living with HIV. AIDS Behav 2022; 26:3679-3687. [PMID: 35604509 PMCID: PMC9550775 DOI: 10.1007/s10461-022-03696-4] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/25/2022] [Indexed: 11/29/2022]
Abstract
Increasing numbers of women with HIV are experiencing menopause. We use data from a large, representative sample of women with HIV to describe the prevalence and clustering of menopausal symptoms amongst pre-, peri- and post-menopausal women using hierarchical agglomerative cluster analysis. Of the 709 women included, 21.6%, 44.9% and 33.6% were pre-, peri- and post-menopausal, respectively. Joint pain (66.4%) was the most commonly reported symptom, followed by hot flashes (63.0%), exhaustion (61.6%) and sleep problems (61.4%). All symptoms were reported more commonly by peri- and post-menopausal women compared to pre-menopausal women. Psychological symptoms and sleep problems clustered together at all menopausal stages. Somatic and urogenital symptom clusters emerged more distinctly at peri- and post-menopause. We recommend regular and proactive assessment of menopausal symptoms in midlife women with HIV, with an awareness of how particular patterns of symptoms may evolve over the menopausal transition.
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Affiliation(s)
- H Okhai
- Institute for Global health, University College London, London, UK.
| | - C Sabin
- Institute for Global health, University College London, London, UK
| | - K Haag
- Institute for Global health, University College London, London, UK
| | - L Sherr
- Institute for Global health, University College London, London, UK
| | - R Dhairyawan
- Department of Infection and Immunity, Barts Health NHS Trust, London, UK
| | | | - G Richard
- Institute for Global health, University College London, London, UK
| | - F Burns
- Institute for Global health, University College London, London, UK
- Royal Free London NHS Foundation Trust, London, UK
| | - F Post
- Kings College Hospital NHS Foundation Trust, London, UK
| | - R Jones
- Chelsea and Westminster Healthcare NHS Foundation Trust, London, UK
| | - Y Gilleece
- Brighton & Sussex University Hospitals NHS Trust, Brighton, UK
- Brighton & Sussex Medical School, Brighton, UK
| | - S Tariq
- Institute for Global health, University College London, London, UK
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Richard G, De Smet S, Font-i-Furnols M, Leroy F, Lind V. Editorial: Quality of animal-source foods related to their production and processing conditions. Animal 2022; 16 Suppl 1:100440. [DOI: 10.1016/j.animal.2021.100440] [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] [Received: 12/07/2021] [Revised: 12/08/2021] [Accepted: 12/09/2021] [Indexed: 10/19/2022] Open
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Juliea P, Kerkmeijer L, Woudstra P, Kalkman D, Klomp M, Varma C, Koolen J, Teiger E, Richard G, Bea F, Tijssen J, Beijk M, De Winter R. Final 5-year results of the TRIAS-LR: a multi-centre, randomized trial comparing the Genous endothelial progenitor cell capturing stent with bare metal stents in patients with low risk for restenosis. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.2545] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Introduction
The Genous stent is a bare metal stent (BMS) together with a technique of capturing endothelial progenitor cells. The successor of the Genous endothelial progenitor cell capturing (EPC) stent, the COMBO stent, combines this technique with the drug eluting polymer. The current studies showed promising results of the COMBO stent, however the additional value of EPC technique in overcoming neointimal hyperplasia has yet to be proven.
Purpose
This study sought to evaluate the efficacy and safety of the Genous EPC stent compared to BMS in a patient population with low risk for restenosis.
Methods
TRIAS-LR was an investigator-initiated, prospective, multicentre, single blind trial randomizing patients with low risk of restenosis 1:1 to Genous ECS or BMS. Patients were recruited between 2007 and 2014 at 31 sites across Europe. The study enrolment was terminated at 70% of the planned inclusion due to slow enrolment and change of guidelines. Patients or lesions were considered low risk if all of the following criteria were met: 1) reference vessel diameter >2.8mm, 2) lesion length <20mm, 3) no thrombolysis in myocardial infarction (TIMI) flow of 0, and 4) patient without diabetes mellitus. Clinical follow-up was obtained yearly. The trial was monitored and independent clinical event committee adjudicated serious adverse clinical events. The primary endpoint was target lesion failure (TLF), composite of cardiac death, target-vessel myocardial infarction (TV-MI) or target lesion revascularization (TLR) at 1 year. Secondary endpoint included the composite of death or MI at 5-year follow-up.
Results
In total, 838 patients were enrolled of whom 422 patients with 476 lesions were randomly assigned to Genous EPC stent and 416 patients with 480 lesions to BMS. The mean age was 64 years, 74% were males and in 76% patients were treated in elective setting. At 1 year TLF had occurred in 3.6% (n=15) of the Genous arm and in 6.1% (n=25) of the BMS arm (p=0.094; risk difference of −2.5%). However, this difference disappeared, at 5-years of follow-up; TLF rate was 12.6% (n=51) in the Genous arm versus 14.3% (n=58) in the BMS arm (p=0.385; risk difference of −1.7%). The secondary objective of the composite death or MI at 5 years occurred in 11.6% (n=47) in the Genous arm and 9.9% (n=40) in the BMS arm (p=0.479; risk difference of 1.7%). At 5 years definite stent thrombosis (ST) occurred in 0.5% (n=2) of the Genous arm, no definite ST had occurred in the BMS arm (p=0.162).
Conclusion
TRIAS-LR trial showed no differences between Genous EPC and BMS throughout 5-year follow-up in patients considered as low risk of restenosis.
Kaplan-Meier plot of composite endpoints
Funding Acknowledgement
Type of funding source: Private company. Main funding source(s): OrbusNeich Medical BV
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Affiliation(s)
- P.T.S Juliea
- Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands (The)
| | - L.S.M Kerkmeijer
- Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands (The)
| | - P Woudstra
- Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands (The)
| | - D.N Kalkman
- Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands (The)
| | - M Klomp
- Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands (The)
| | - C Varma
- Birmingham City Hospital, Birmingham, United Kingdom
| | - J.J Koolen
- Catharina Hospital, Eindhoven, Netherlands (The)
| | - E Teiger
- University Hospital Henri Mondor, Creteil, France
| | - G Richard
- Segeberger Clinics, Bad Segeberg, Germany
| | - F Bea
- University Hospital of Heidelberg, Heidelberg, Germany
| | - J.G Tijssen
- Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands (The)
| | - M Beijk
- Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands (The)
| | - R.J De Winter
- Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands (The)
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Flynn F, Richard G, Dobrescu MA, Bouchard J, Williamson D, Brindamour D, Charbonney E, Dupuis S. Refractory Dabigatran-Induced Hemorrhage Despite Multiple Idarucizumab Administration and Renal Replacement Therapy. J Pharm Pract 2020; 35:302-307. [PMID: 32985337 DOI: 10.1177/0897190020961691] [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] [Indexed: 10/23/2022]
Abstract
PURPOSE This case report describes a patient with dabigatran accumulation due to acute kidney injury on chronic kidney disease, requiring multiple administration of idarucizumab along with renal replacement therapy because of rebound effect causing numerous episodes of bleeding. SUMMARY An 86-year-old man on dabigatran etexilate 110 mg twice daily for stroke prevention with atrial fibrillation was admitted to the hospital for bowel obstruction and severe acute kidney injury on chronic kidney disease. The patient had an abnormal coagulation profile and no history of bleeding. Initial laboratory values revealed a hemoglobin concentration of 10.7 g/dL, a platelet count of 115 × 103 platelets/μL, an activated partial thromboplastin time of 150.4 seconds, an international normalized ratio of 10.28, a thrombin time greater than 100 seconds and a serum creatinine of 5.54 mg/dL (490 μmol/L). An initial dose of idarucizumab was administered 1 hour prior to surgery to prevent bleeding. Significant bleeding and hemodynamic instability occurred following surgery. Three additional doses of idarucizumab, 2 sessions of intermittent hemodialysis, continuous venovenous hemofiltration and blood products were required to achieve normalization of coagulation parameters and hemodynamic stability due to rebound coagulopathy after each dose of idarucizumab. CONCLUSION Acute kidney injury on chronic kidney disease and third-space redistribution could have led to important dabigatran accumulation and favored rebound coagulopathy. Multiple therapeutic approaches may be required in the management of complex dabigatran intoxication.
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Affiliation(s)
- Francis Flynn
- Hôpital du Sacré-Coeur de Montréal, Montreal, Quebec, Canada.,University of Montreal, Montreal, Quebec, Canada
| | - Guillaume Richard
- Hôpital du Sacré-Coeur de Montréal, Montreal, Quebec, Canada.,University of Montreal, Montreal, Quebec, Canada
| | - Marc A Dobrescu
- Hôpital du Sacré-Coeur de Montréal, Montreal, Quebec, Canada.,University of Montreal, Montreal, Quebec, Canada
| | - Josée Bouchard
- Hôpital du Sacré-Coeur de Montréal, Montreal, Quebec, Canada.,University of Montreal, Montreal, Quebec, Canada
| | - David Williamson
- Hôpital du Sacré-Coeur de Montréal, Montreal, Quebec, Canada.,University of Montreal, Montreal, Quebec, Canada
| | - Dave Brindamour
- Hôpital du Sacré-Coeur de Montréal, Montreal, Quebec, Canada
| | - Emmanuel Charbonney
- Hôpital du Sacré-Coeur de Montréal, Montreal, Quebec, Canada.,University of Montreal, Montreal, Quebec, Canada
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8
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Ralser DJ, Kumar S, Borisov O, Sarig O, Richard G, Wolf S, Krawitz PM, Sprecher E, Kreiß M, Betz RC. Identification of a founder mutation in KRT14 associated with Naegeli-Franceschetti-Jadassohn syndrome. Br J Dermatol 2020; 183:756-757. [PMID: 32282935 DOI: 10.1111/bjd.19123] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- D J Ralser
- Institute of Human Genetics, University of Bonn, Faculty of Medicine and University Hospital Bonn, Bonn, Germany
| | - S Kumar
- Institute of Human Genetics, University of Bonn, Faculty of Medicine and University Hospital Bonn, Bonn, Germany
| | - O Borisov
- Institute for Genomic Statistics and Bioinformatics, University of Bonn, Faculty of Medicine and University Hospital Bonn, Bonn, Germany
| | - O Sarig
- Department of Dermatology, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
| | | | - S Wolf
- Institute of Human Genetics, University of Bonn, Faculty of Medicine and University Hospital Bonn, Bonn, Germany
| | - P M Krawitz
- Institute for Genomic Statistics and Bioinformatics, University of Bonn, Faculty of Medicine and University Hospital Bonn, Bonn, Germany
| | - E Sprecher
- Department of Dermatology, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel.,Department of Human Molecular Genetics and Biochemistry, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - M Kreiß
- Institute of Human Genetics, University of Bonn, Faculty of Medicine and University Hospital Bonn, Bonn, Germany
| | - R C Betz
- Institute of Human Genetics, University of Bonn, Faculty of Medicine and University Hospital Bonn, Bonn, Germany
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Huseynov A, Baumann S, Nef H, Riemer T, Schneider S, Pfannebecker T, Achenbach S, Mehilli J, Gori T, Woehrle J, Zahn R, Schmermund A, Richard G, Hamm C, Akin I. P2809Comparison between treatment of “established” versus complex “off-label” coronary lesions with Absorb bioresorbable scaffold implantation: results from the GABI-R registry. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.1121] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Objectives
The purpose of this study was to compare the clinical outcomes of patients treated with bioresorbable scaffold (BRS) for off-label versus approved indications.
Background
The BRS promised some advantages in terms of complete biodegradation, however, the implication of BRS for off-label indications is not well described.
Methods
The short- and long-term outcome after implantation of a bioresorbable scaffold system (ABSORB, Abbott Vascular, USA) was evaluated in the prospective, non-interventional, multicenter real-world German-Austrian ABSORB RegIstRy (GABI-R).
Results
A total of 3,188 patients were enrolled. Patients were divided into two groups: on-label BRS use (33.0%) and off-label use (66.9%) if at least one off-label use criteria was met. The incidence of scaffold thrombosis in confirmed cases was significantly higher in off-label group (1.36% vs. 0.57%, p=0.04; OR 2.41 (95% CI: 1.00–5.82) with also a trend towards higher myocardial infarction rate (2.39% vs. 1.42%, p=0.077; OR 1.70 (95% CI: 0.95–3.03) and cardiovascular death (1.27% vs. 1.14%, p=0.76, OR 1.11 (95% CI: 0.56–2.21) at 6 months follow up.
Clinical outcome at 6 months Total Off-label On-label p-value* OR (95%-CI) Patients with 6m FU record 99.0% 99.0% 99.1% 0.82 0.92 (0.43–1.95) Confirmed cardiovascular death 1.22% 1.27% 1.14% 0.76 1.11 (0.56–2.21) Confirmed non-cardiovascular death 0.22% 0.14% 0.38% 0.18 0.37 (0.08–1.66) Cause unknown 0.22% 0.28% 0.09% 0.29 2.97 (0.36–24.73) Hospitalisation 27.5% 27.9% 26.7% 0.51 1.06 (0.89–1.27) MI 2.07% 2.39% 1.42% 0.07 1.70 (0.95–3.03) ARC definite scaffold thrombosis 1.10% 1.36% 0.57% 0.04 2.41 (1.00–5.82) TLF 2.70% 3.00% 2.09% 0.13 1.45 (0.89–2.37) TVF 3.98% 4.31% 3.32% 0.18 1.31 (0.88–1.95) MACE 4.33% 4.64% 3.70% 0.22 1.27 (0.87–1.85) Values are mean ± standard deviation (SD) or number and percentage (n, %). *Comparison between off-label and on-label use. The p-values are from Chi-squared test or Mann-Whitney-Wilcoxon test. ARC, academic research consortium; FU, follow up; MACE, major adverse cardiac events; PCI, percutaneous coronary intervention; TLF, target lesion failure; TVF, target vessel failure.
Kaplan-Meyer curve stent thrombosis
Conclusions
The off-label use of BRS compared to confirmed indications appears to be associated with a higher rate of clinical endpoints considering more complex lesions and higher morbidity in this patients' group.
Acknowledgement/Funding
This research was supported by a grant from Abbott Vascular.
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Affiliation(s)
- A Huseynov
- University Medical Centre of Mannheim, Mannheim, Germany
| | - S Baumann
- University Medical Centre of Mannheim, Mannheim, Germany
| | - H Nef
- University Hospital Giessen and Marburg, Giessen, Germany
| | - T Riemer
- Heart Attack Research Center, Ludwigshafen am Rhein, Germany
| | - S Schneider
- Heart Attack Research Center, Ludwigshafen am Rhein, Germany
| | | | - S Achenbach
- University of Erlangen-Nuremberg, Erlangen, Germany
| | - J Mehilli
- Central Hospital Bad Berka, Bad Berka, Germany
| | - T Gori
- University Medical Center of Mainz, Mainz, Germany
| | | | - R Zahn
- Klinikum Ludwigshafen, Ludwigshafen am Rhein, Germany
| | - A Schmermund
- CardioVascular Center Bethanien (CCB), Frankfurt am Main, Germany
| | - G Richard
- Heart Center Bad Segeberg, Bad Segeberg, Germany
| | - C Hamm
- University Hospital Giessen and Marburg, Giessen, Germany
| | - I Akin
- University Medical Centre of Mannheim, Mannheim, Germany
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Le Trionnaire G, Tanguy S, Hudaverdian S, Gleonnec F, Richard G, Cayrol B, Monsion B, Pichon E, Deshoux M, Webster C, Uzest M, Herpin A, Tagu D. An integrated protocol for targeted mutagenesis with CRISPR-Cas9 system in the pea aphid. Insect Biochem Mol Biol 2019; 110:34-44. [PMID: 31015023 DOI: 10.1016/j.ibmb.2019.04.016] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Revised: 04/16/2019] [Accepted: 04/17/2019] [Indexed: 06/09/2023]
Abstract
CRISPR-Cas9 technology is a very efficient functional analysis tool and has been developed in several insects to edit their genome through injection of eggs with guide RNAs targeting coding sequences of genes of interest. However, its implementation in aphids is more challenging. Aphids are major pests of crops worldwide that alternate during their life cycle between clonality and sexual reproduction. The production of eggs after mating of sexual individuals is a single yearly event and is necessarily triggered by a photoperiod decrease. Fertilized eggs then experience an obligate 3-month diapause period before hatching as new clonal colonies. Taking into consideration these particularities, we developed in the pea aphid Acyrthosiphon pisum a step-by-step protocol of targeted mutagenesis based on the microinjection within fertilized eggs of CRISPR-Cas9 components designed for the editing of a cuticular protein gene (stylin-01). This protocol includes the following steps: i) the photoperiod-triggered induction of sexual morphs (2 months), ii) the mating and egg collection step (2 weeks), iii) egg microinjection and melanization, iv) the 3-month obligate diapause, v) the hatching of new lineages from injected eggs (2 weeks) and vi) the maintenance of stable lineages (2 weeks). Overall, this 7-month long procedure was applied to three different crosses in order to estimate the impact of the choice of the genetic combination on egg production dynamics by females as well as hatching rates after diapause. Mutation rates within eggs before diapause were estimated at 70-80%. The hatching rate of injected eggs following diapause ranged from 1 to 11% depending on the cross and finally a total of 17 stable lineages were obtained and maintained clonally. Out of these, 6 lineages were mutated at the defined sgRNAs target sites within stylin-01 coding sequence, either at the two alleles (2 lineages) or at one allele (4 lineages). The final germline transmission rate of the mutations was thus around 35%. Our protocol of an efficient targeted mutagenesis opens the avenue for functional studies through genome editing in aphids.
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Affiliation(s)
- G Le Trionnaire
- UMR 1349 IGEPP (INRA, University Rennes 1, Agrocampus Ouest), Rennes, France.
| | - S Tanguy
- UMR 1349 IGEPP (INRA, University Rennes 1, Agrocampus Ouest), Rennes, France
| | - S Hudaverdian
- UMR 1349 IGEPP (INRA, University Rennes 1, Agrocampus Ouest), Rennes, France
| | - F Gleonnec
- UMR 1349 IGEPP (INRA, University Rennes 1, Agrocampus Ouest), Rennes, France
| | - G Richard
- UMR 1349 IGEPP (INRA, University Rennes 1, Agrocampus Ouest), Rennes, France
| | - B Cayrol
- UMR BGPI (University Montpellier, CIRAD, INRA, Montpellier SupAgro), Montpellier, France
| | - B Monsion
- UMR BGPI (University Montpellier, CIRAD, INRA, Montpellier SupAgro), Montpellier, France
| | - E Pichon
- UMR BGPI (University Montpellier, CIRAD, INRA, Montpellier SupAgro), Montpellier, France
| | - M Deshoux
- UMR BGPI (University Montpellier, CIRAD, INRA, Montpellier SupAgro), Montpellier, France
| | - C Webster
- UMR BGPI (University Montpellier, CIRAD, INRA, Montpellier SupAgro), Montpellier, France
| | - M Uzest
- UMR BGPI (University Montpellier, CIRAD, INRA, Montpellier SupAgro), Montpellier, France
| | | | - D Tagu
- UMR BGPI (University Montpellier, CIRAD, INRA, Montpellier SupAgro), Montpellier, France
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Troebs M, Achenbach S, Nef H, Wiebe J, Kastner J, Mehili J, Muenzel T, Naber C, Neumann T, Richard G, Schmermundt A, Woehrle J, Zahn R, Riemer T, Hamm C. P798Outcome of percutaneous coronary intervention with everolimus-eluting bioresorbable vascular scaffolds in patients with STEMI as compared to stable CAD 2 year results from the German-Austrian ABSORB. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy564.p798] [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: 11/14/2022] Open
Affiliation(s)
- M Troebs
- Friedrich Alexander University, Department of Cardiology, Erlangen, Germany
| | - S Achenbach
- Friedrich Alexander University, Department of Cardiology, Erlangen, Germany
| | - H Nef
- University Hospital Giessen and Marburg, Department of Cardiology, Giessen, Germany
| | - J Wiebe
- German Heart Center of Munich, Deutsches Herzzentrum München, Munich, Germany
| | - J Kastner
- Medical University of Vienna, Vienna, Austria
| | - J Mehili
- Ludwig-Maximilians University, Department of Cardiology, Munich, Germany
| | - T Muenzel
- Johannes Gutenberg University Mainz (JGU), Department of Medicine II, University Medical Center, Mainz, Germany
| | - C Naber
- Elisabeth Hospital, Essen, Germany
| | - T Neumann
- University Hospital of Essen (Ruhr), Department of Cardiology, Essen, Germany
| | - G Richard
- Heart Center Bad Segeberg, Bad Segeberg, Germany
| | - A Schmermundt
- Cardiology Centre Bethanien (CCB), Frankfurt am Main, Germany
| | - J Woehrle
- University of Ulm, 11Department of Internal Medicine II, Ulm, Germany
| | - R Zahn
- Hear Center Ludwigshafen, Ludwigshafen, Germany
| | - T Riemer
- Stiftung Institut für Herzinfarktforschung, Ludwigshafen, Germany
| | - C Hamm
- Kerckhoff Heart and Thorax Center, Bad Nauheim, Germany
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Salama A, Richard G, Medles K, Zeghloul T, Dascalescu L. Distinct recovery of copper and aluminum from waste electric wires using a roll-type electrostatic separator. Waste Manag 2018; 76:207-216. [PMID: 29605307 DOI: 10.1016/j.wasman.2018.03.036] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2017] [Revised: 02/28/2018] [Accepted: 03/23/2018] [Indexed: 06/08/2023]
Abstract
Electrostatic separators are commonly employed for the sorting of insulating and conducting fractions of granular mixtures. However, separation of the various metals that compose the conductive fraction still represents a major challenge for the recycling industry. The aim of this paper is to identify the conditions in which a roll-type electrostatic separator could be used for distinctly recover the copper and aluminum from waste electric wires. A numerical model of particle trajectories was employed to predefine these conditions and guide the experimental study. The electrostatic separation experiments were carried out using a reverse-S-type-plate high-voltage electrode. The visualization of particle trajectories using a high-speed camera paved the way to an original design. Thus, a metallic trap was attached to the high-voltage electrode, to facilitate the collection of the aluminum flake-like particles from a mixture that also contains copper strands. With a plastic trap replacing the metallic one, to avoid electric field modification, 68.6% of the copper was recovered with a purity attaining 99%.
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Affiliation(s)
- A Salama
- PPRIME Institute, CNRS, University of Poitiers, ENSMA, IUT, Angoulême, France; Shoubra Faculty of Engineering, Benha University, Cairo, Egypt
| | - G Richard
- PPRIME Institute, CNRS, University of Poitiers, ENSMA, IUT, Angoulême, France; CITF, Saint Cybardeaux, France
| | - K Medles
- PPRIME Institute, CNRS, University of Poitiers, ENSMA, IUT, Angoulême, France; University of Sidi-Bel-Abbes, Algeria
| | - T Zeghloul
- PPRIME Institute, CNRS, University of Poitiers, ENSMA, IUT, Angoulême, France
| | - L Dascalescu
- PPRIME Institute, CNRS, University of Poitiers, ENSMA, IUT, Angoulême, France.
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13
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Zribi I, Sbai H, Ghezal N, Richard G, Trisman D, Fauconnier ML, Haouala R. Phytotoxic activity and chemical composition of Cassia absus seeds and aerial parts. Nat Prod Res 2017; 31:2918-2922. [DOI: 10.1080/14786419.2017.1300795] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- I. Zribi
- Higher Institute of Biotechnology of Monastir, University of Monastir, Monastir, Tunisia
- Department of Biological Sciences and Plant Protection, Higher Institute of Agronomy of Chott Meriem, University of Sousse, Chott-Mariem, Tunisia
| | - H. Sbai
- Department of Biological Sciences and Plant Protection, Higher Institute of Agronomy of Chott Meriem, University of Sousse, Chott-Mariem, Tunisia
| | - N. Ghezal
- Higher Institute of Biotechnology of Monastir, University of Monastir, Monastir, Tunisia
- Department of Biological Sciences and Plant Protection, Higher Institute of Agronomy of Chott Meriem, University of Sousse, Chott-Mariem, Tunisia
| | - G. Richard
- General and Organic Chemistry Unit, Gembloux Agro-Bio Tech, University of Liège, Gembloux, Belgium
| | - D. Trisman
- General and Organic Chemistry Unit, Gembloux Agro-Bio Tech, University of Liège, Gembloux, Belgium
| | - M. L. Fauconnier
- General and Organic Chemistry Unit, Gembloux Agro-Bio Tech, University of Liège, Gembloux, Belgium
| | - R. Haouala
- Department of Biological Sciences and Plant Protection, Higher Institute of Agronomy of Chott Meriem, University of Sousse, Chott-Mariem, Tunisia
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14
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Roy C, Lavoie M, Richard G, Archambault A, Lapointe J. Evidence that oxidative stress is higher in replacement gilts than in multiparous sows. J Anim Physiol Anim Nutr (Berl) 2016; 100:911-9. [PMID: 27079824 DOI: 10.1111/jpn.12462] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [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: 03/11/2015] [Accepted: 12/05/2015] [Indexed: 11/28/2022]
Abstract
The recent success obtained in term of increasing the litter size of sows has not correlated with a reduction of replacement rate. There is thus an increased economic demand for gilts with optimal reproductive potential and longevity. Unfortunately, replacement gilts are known to be more susceptible to diseases and less productive than multiparous sows. Interestingly, reproductive performance, resistance to diseases and longevity could all be largely affected by oxidative stress. To investigate whether oxidative stress conditions could account for the poor longevity of gilts, three distinct groups of conventional Yorkshire × Landrace sows were formed based on their similar age and parity (gilts, second parity sows as well as fourth to fifth parity sows). All animals were slaughtered during the post-ovulatory period, and blood as well as tissue samples were collected. Biomarkers of oxidative damage to proteins (carbonyls) and DNA (8-OHdG) were analysed in samples. Specific mRNA expression of major antioxidants such as glutathione peroxidases 1, 3 and 4 (GPx1, GPx3, GPx4) as well as superoxide dismutases 1 and 2 (Sod1, Sod2) were monitored in liver and kidney samples by quantitative RT-PCR. Specific enzymatic activities of both GPx and SOD were measured by spectrophotometric assays. The plasma concentration of protein carbonyls was significantly different between the three groups with the highest concentration being observed in gilts (p ≤ 0.001). The mRNA expression levels of GPx1 and GPx4 were also significantly increased in the liver of gilts when compared to multiparous sows (p ≤ 0.05). SOD2 enzymatic activity was found to be higher in the liver of gilts than multiparous sows (p ≤ 0.05). Taken together, these results indicate that replacement gilts sustain significantly higher oxidative conditions than multiparous sows. Current findings may contribute to the design of nutritional regimens that will increase the productivity of gilts by counteracting oxidative stress.
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Affiliation(s)
- C Roy
- Dairy and Swine R & D Centre, Agriculture and Agri-Food Canada, Sherbrooke, QC, Canada
| | - M Lavoie
- Dairy and Swine R & D Centre, Agriculture and Agri-Food Canada, Sherbrooke, QC, Canada
| | - G Richard
- Dairy and Swine R & D Centre, Agriculture and Agri-Food Canada, Sherbrooke, QC, Canada
| | - A Archambault
- Dairy and Swine R & D Centre, Agriculture and Agri-Food Canada, Sherbrooke, QC, Canada
| | - J Lapointe
- Dairy and Swine R & D Centre, Agriculture and Agri-Food Canada, Sherbrooke, QC, Canada.
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Krolak-Salmon P, Roubaud C, Finne-Soveri H, Riolacci-Dhoyen N, Richard G, Rouch I, Leperre-Desplanques A, Dauphinot V. Evaluation of a mobile team dedicated to behavioural disorders as recommended by the Alzheimer Cooperative Valuation in Europe joint action: observational cohort study. Eur J Neurol 2016; 23:979-88. [PMID: 26945537 DOI: 10.1111/ene.12975] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [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: 08/17/2015] [Accepted: 01/18/2016] [Indexed: 11/27/2022]
Abstract
BACKGROUND AND PURPOSE Preventing behavioural crises appears to be crucial to promote quality of life of the patient-caregiver dyad, to reduce inappropriate hospitalizations and to delay institutionalization. The Alzheimer Cooperative Valuation in Europe promotes mobile care to prevent patients from severe behavioural and psychological symptoms in dementia. This study assessed the potential efficacy of a mobile team for Alzheimer's disease on hospitalization sparing and behavioural disorder reduction. METHODS A cohort study was set up from 1 January 2012 to 31 December 2013 by the Clinical and Research Memory Centre of Lyon (France). It included patients with behavioural and psychological symptoms living at home or in a nursing home. An interview explored the alternative patient pathways used by general practitioners (GPs) if the mobile team had not existed (hospitalization sparing). The Neuropsychiatry Inventory score was assessed at inclusion and 30 days later. The sample included 424 consecutive patients with Alzheimer's disease or related disorders and behavioural disorders at any cognitive and functional stage of the disease, taken in charge by the mobile team. RESULTS Amongst the 424 patients (84.0 ± 7.2 years), 220 (51.9%) hospitalizations were considered by their GPs and 181 (82.3%) were avoided. The Neuropsychiatric Inventory score declined after mobile team intervention (45.8-29.9, P < 0.001). Sleep and appetite disorders, endangered situation and caregiver burnout were associated with higher risk of hospitalization at 30 days. CONCLUSIONS The mobile team for Alzheimer's disease allows a high proportion of hospitalizations related to behavioural disorders to be avoided and may help to reduce behavioural disorders.
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Affiliation(s)
- P Krolak-Salmon
- Clinical and Research Memory Centre of Lyon (CMRR), Charpennes Hospital, University Hospital of Lyon, Villeurbanne, France.,Clinical Research Centre (CRC) - VCF (Aging - Brain - Frailty), Charpennes Hospital, University Hospital of Lyon, Villeurbanne, France.,University Lyon 1, Lyon, France.,INSERM U1028, CNRS UMR5292, Lyon Neuroscience Research Centre, Brain Dynamics and Cognition Team, Lyon, France
| | - C Roubaud
- Clinical and Research Memory Centre of Lyon (CMRR), Charpennes Hospital, University Hospital of Lyon, Villeurbanne, France
| | - H Finne-Soveri
- Ageing and Services Unit, National Institute of Health and Welfare (THL), Helsinki, Finland
| | | | - G Richard
- Clinical and Research Memory Centre of Lyon (CMRR), Charpennes Hospital, University Hospital of Lyon, Villeurbanne, France
| | - I Rouch
- Clinical and Research Memory Centre of Lyon (CMRR), Charpennes Hospital, University Hospital of Lyon, Villeurbanne, France
| | | | - V Dauphinot
- Clinical and Research Memory Centre of Lyon (CMRR), Charpennes Hospital, University Hospital of Lyon, Villeurbanne, France.,University Lyon 1, Lyon, France
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16
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Yamoneka J, Malumba P, Blecker C, Gindo M, Richard G, Fauconnier ML, Lognay G, Danthine S. Physicochemical properties and thermal behaviour of African wild mango (Irvingia gabonensis) seed fat. Lebensm Wiss Technol 2015. [DOI: 10.1016/j.lwt.2015.06.035] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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17
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Richard G, Lauricella C, Xu Z, Aksentijevich I. NextGen sequencing (NGS) panel for hereditary recurrent fevers: mutation spectrum, novel mutations, and evidence for re-classification of common variants based on analysis of >3000 cases from North America. Pediatr Rheumatol Online J 2015. [PMCID: PMC4596948 DOI: 10.1186/1546-0096-13-s1-o55] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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18
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Walus I, Richard G, Laquerrière B, Perucca M, Tuveri R, Einbinder V, Muller B, Beydon N. [Underdiagnosed asthma in third-grade children]. Arch Pediatr 2015; 23:9-13. [PMID: 26586545 DOI: 10.1016/j.arcped.2015.10.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2015] [Revised: 09/20/2015] [Accepted: 10/08/2015] [Indexed: 10/22/2022]
Abstract
Undiagnosed asthma has been poorly studied before adolescence since it can go unnoticed by parents and doctors. Moreover, it is unusual to look for undiagnosed asthma by directly questioning children on the presence of current respiratory symptoms. Epidemiologic studies show that more adolescents quote symptoms suggestive of asthma than the prevalence of doctor-diagnosed asthma, but respiratory symptoms compatible with asthma remain undetected by parents of younger children more frequently than doctors diagnose asthma in their children. We attempted to evaluate the relevance of a questionnaire used since 2011 by school doctors in Paris to detect asthma. In this questionnaire, the family history of atopy and asthma were completed by the parents when they met the school doctor (last year of preschool) and questions on current respiratory symptoms were answered by third-grade children seen alone by the school doctor. One hundred and thirty-one children out of 1135 children questioned had a positive questionnaire for suspected asthma. In three-quarters of the cases, questionnaires were positive based on the children's answers on their respiratory symptoms (without a positive answer on personal or family history being necessary). The outcome of 41 children screened by the questionnaire was known. Twenty (49%) children had received a final diagnosis of asthma, of whom 12 were put on asthma controllers. Among these 20 children, two children underwent lung function testing and two others underwent tests for allergy. In eight children, tests had been requested by the child's GP, but no final diagnosis was reported by the parents. None of the 13 children in whom asthma was ruled out had any test performed. It was concluded that it is possible to detect undiagnosed asthma in children as young as 8 years by directly asking them about their respiratory symptoms. The knowledge of personal and family history can improve screening for asthma in these children. A more thorough evaluation of all children with a positive questionnaire is necessary to better understand the properties of the questionnaire. Finally, the best way to implement this screening program remains to be established (school health, GPs).
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Affiliation(s)
- I Walus
- Service de santé scolaire, sous-direction de la santé, Dases, 75012 Paris, France
| | - G Richard
- Service de santé scolaire, sous-direction de la santé, Dases, 75012 Paris, France
| | - B Laquerrière
- Service de santé scolaire, sous-direction de la santé, Dases, 75012 Paris, France
| | - M Perucca
- Service de santé scolaire, sous-direction de la santé, Dases, 75012 Paris, France
| | - R Tuveri
- Service de santé scolaire, sous-direction de la santé, Dases, 75012 Paris, France
| | - V Einbinder
- Service de santé scolaire, sous-direction de la santé, Dases, 75012 Paris, France
| | - B Muller
- Service de santé scolaire, sous-direction de la santé, Dases, 75012 Paris, France
| | - N Beydon
- Unité d'exploration fonctionnelle respiratoire et du sommeil, hôpital Trousseau, AP-HP, 26, avenue du Docteur-Arnold-Netter, 75012, Paris, France; Inserm U938, centre de recherche Saint-Antoine, 75012 Paris, France.
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Dulz S, Wagenfeld L, Nickel M, Richard G, Schwartz R, Bartsch U, Kohlschütter A, Schulz A. Novel morphological macular findings in juvenile CLN3 disease. Br J Ophthalmol 2015; 100:824-8. [PMID: 26486417 DOI: 10.1136/bjophthalmol-2015-307320] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [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: 06/15/2015] [Accepted: 09/25/2015] [Indexed: 11/03/2022]
Abstract
AIMS Juvenile CLN3 disease, one of the most common forms of a group of lysosomal storage diseases called neuronal ceroid lipofuscinoses (NCLs), is a progressive neurodegenerative disorder with initial visual deterioration. The objective of this study was to analyse the retinal phenotype of patients with CLN3 disease with the help of recent ophthalmic imaging modalities to distinguish CLN3 disease from other inherited retinal dystrophies. METHODS Patients underwent ophthalmic evaluations, including anterior and posterior segment examinations, optical coherence tomography, fundus autofluorescence, near infrared imaging and fundus photography. Patients were also assessed according to the Hamburg juvenile NCL (JNCL) score. Each ophthalmic finding was assessed by three independent examiners and assigned to a clinical severity score. RESULTS 22 eyes of 11 patients were included. The mean age at examination was 14.4 years (range 11.8-26.4 years), with an average age at initial diagnosis of 8 years (range 4.5-11 years). The mean Hamburg JNCL score was 7.3 (range 0-13). All patients showed a specific macular striation pattern on optical coherence tomography that was independent of age and progression of the disease. Other previously described retinal features of CLN3 disease were classified into four severity grades. CONCLUSIONS This study represents the first prospective observational case series documenting retinal abnormalities in CLN3 disease with the aid of the spectral domain optical coherence tomography. The major finding was a characteristic, striated macular pattern in all patients studied. Particularly in early disease cases, macular striae can potentially help to discriminate CLN3 disease from other inherited forms of retinitis pigmentosa.
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Affiliation(s)
- S Dulz
- Department of Ophthalmology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - L Wagenfeld
- Department of Ophthalmology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - M Nickel
- University Children's Hospital, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - G Richard
- Department of Ophthalmology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - R Schwartz
- Department of Ophthalmology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - U Bartsch
- Department of Ophthalmology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - A Kohlschütter
- University Children's Hospital, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - A Schulz
- University Children's Hospital, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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Mendisco F, Pemonge MH, Leblay E, Romon T, Richard G, Courtaud P, Deguilloux MF. Where are the Caribs? Ancient DNA from ceramic period human remains in the Lesser Antilles. Philos Trans R Soc Lond B Biol Sci 2015; 370:20130388. [PMID: 25487339 DOI: 10.1098/rstb.2013.0388] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
The identity and history of the indigenous groups who occupied the Lesser Antilles during the ceramic periods remain highly controversial. Although recent archaeological evidence has challenged hypotheses concerning the organization of human groups in this region, more biological data are needed to fully inform the discussion. Our study provides, to our knowledge, the first palaeogenetic data for Late Ceramic groups of the Guadeloupe archipelago, yielding crucial information concerning the identities of these groups. Despite the generally poor DNA preservation in the tested remains, we were able to retrieve Hypervariable Region 1 sequences from 11 individuals and mitochondrial single-nucleotide polymorphisms from 13 individuals. These novel data provide interesting preliminary results in favour of a common origin for all Saladoid Caribbean communities, i.e. the first ceramic groups of the region, as well as for a local continuity between the Saladoid and post-Saladoid groups. A combination of the genetic data obtained and several pieces of cultural evidence allows us to propose that two different groups inhabited the Guadeloupe archipelago during the Late Ceramic period, with the possible occupation of the La Désirade and Marie-Galante islands by groups affiliated with the Taíno communities. The working hypotheses proposed here appear consistent with recent archaeological evidence.
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Affiliation(s)
- F Mendisco
- Université de Bordeaux, UMR 5199 PACEA, Equipe Anthropologie des Populations Passées et Présentes, Allée Geoffroy ST Hilaire, Pessac Cedex 33615, France
| | - M H Pemonge
- Université de Bordeaux, UMR 5199 PACEA, Equipe Anthropologie des Populations Passées et Présentes, Allée Geoffroy ST Hilaire, Pessac Cedex 33615, France
| | - E Leblay
- Université de Bordeaux, UMR 5199 PACEA, Equipe Anthropologie des Populations Passées et Présentes, Allée Geoffroy ST Hilaire, Pessac Cedex 33615, France
| | - T Romon
- Institut National de Recherches Archéologiques Préventives Guadeloupe, centre de Saint-Claude, rue des Gommiers Blancs Parnasse, Saint-Claude 97120, France
| | - G Richard
- Conseil regional de la Guadeloupe, Avenue Paul Lacavé, Basse-Terre 97100, France
| | - P Courtaud
- Université de Bordeaux, UMR 5199 PACEA, Equipe Anthropologie des Populations Passées et Présentes, Allée Geoffroy ST Hilaire, Pessac Cedex 33615, France
| | - M F Deguilloux
- Université de Bordeaux, UMR 5199 PACEA, Equipe Anthropologie des Populations Passées et Présentes, Allée Geoffroy ST Hilaire, Pessac Cedex 33615, France
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Linke SJ, Ren L, Frings A, Steinberg J, Wöllmer W, Katz T, Reimer R, Hansen NO, Jowett N, Richard G, Dwayne Miller RJ. [Perspectives of laser-assisted keratoplasty: current overview and first preliminary results with the picosecond infrared laser (λ = 3 µm)]. Ophthalmologe 2015; 111:523-30. [PMID: 24942118 DOI: 10.1007/s00347-013-2995-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
BACKGROUND This article provides a review of the current state of laser-assisted keratoplasty and describes a first proof of concept study to test the feasibility of a new mid-infrared (MIR) picosecond laser to perform applanation-free corneal trephination. METHODS The procedure is based on a specially adapted laser system (PIRL-HP2-1064 OPA-3000, Attodyne, Canada) which works with a wavelength of 3,000 ± 90 nm, a pulse duration of 300 ps and a repetition rate of 1 kHz. The picosecond infrared laser (PIRL) beam is delivered to the sample by a custom-made optics system with an implemented scanning mechanism. Corneal specimens were mounted on an artificial anterior chamber and subsequent trephination was performed with the PIRL under stable intraocular pressure conditions. RESULTS A defined corneal ablation pattern, e.g. circular, linear, rectangular or disc-shaped, can be selected and its specific dimensions are defined by the user. Circular and linear ablation patterns were employed for the incisions in this study. Linear and circular penetrating PIRL incisions were examined by macroscopic inspection, histology, confocal microscopy and environmental scanning electron microscopy (ESEM) for characterization of the incisional quality. Using PIRL reproducible and stable incisions could be made in human and porcine corneal samples with minimal damage to the surrounding tissue. CONCLUSION The PIRL laser radiation in the mid-infrared spectrum with a wavelength of 3 µm is exactly tuned to one of the dominant vibrational excitation bands of the water molecule, serves as an effective tool for applanation-free corneal incision and might broaden the armamentarium of corneal transplant surgery.
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Affiliation(s)
- S J Linke
- Klinik und Poliklinik für Augenheilkunde, Universitätsklinikum Eppendorf (UKE), Martinistr. 52, 20246, Hamburg, Deutschland,
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Gesser C, Küper T, Richard G, Hassenstein A. [Intraoperative Measurement of Refraction with a Hand-Held Autorefractometer]. Klin Monbl Augenheilkd 2015; 232:863-6. [PMID: 25853944 DOI: 10.1055/s-0035-1545733] [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: 10/23/2022]
Abstract
PURPOSE The aim of this study was to evaluate an intraoperative measurement of objective refraction with a hand-held retinomax instrument. METHODS At the end of cataract surgery objective refraction in a lying position was measured with a retinomax instrument. On the first postoperative day the same measurement was performed with a retinomax and a standard autorefractometer. To evaluate the differences between measurements, the spherical equivalent (SE) and Jackson's cross cylinder at 0° (J0) and 45° (J45) was used. RESULTS 103 eyes were included. 95 of them had normal cataract surgery. Differences between retinomax at the operative day and the standard autorefractometer were 0.68 ± 2.58 D in SE, 0.05 ± 1.4D in J0 and 0.05 ± 1.4D in J45. There were no statistically significant differences between the groups. CONCLUSION Intraoperative measurement of the refraction with a retinomax can predict the postoperative refraction. Nevertheless, in a few patients great differences may occur.
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Affiliation(s)
- C Gesser
- Klinik und Poliklinik für Augenheilkunde, Universitätsklinikum Hamburg-Eppendorf
| | - T Küper
- Klinik und Poliklinik für Augenheilkunde, Universitätsklinikum Hamburg-Eppendorf
| | - G Richard
- Klinik und Poliklinik für Augenheilkunde, Universitätsklinikum Hamburg-Eppendorf
| | - A Hassenstein
- Klinik und Poliklinik für Augenheilkunde, Universitätsklinikum Hamburg-Eppendorf
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Ludewig P, Flachsbarth K, Wegscheid C, Tiegs G, Richard G, Wagener C, Bartsch U, Horst AK. CEACAM1 Confers Resistance Toward Oxygen-Induced Vessel Damage in a Mouse Model of Retinopathy of Prematurity. Invest Ophthalmol Vis Sci 2014; 55:7950-60. [DOI: 10.1167/iovs.13-13403] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Richard G, Houang M, De la Fouchardière A, Marais R, Larue L, Dalle S, Tulchinsky E, Ansieau S, Puisieux A, Caramel J. 272: TWIST1 and ZEB1 EMT inducers contribute to melanoma development through regulating MITF. Eur J Cancer 2014. [DOI: 10.1016/s0959-8049(14)50241-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Abstract
BACKGROUND The aim of this study was to evaluate the long-term outcome of deep sclerectomy (DS) with a follow-up of up to 8 years. PATIENTS AND METHODS All patients who underwent a deep sclerectomy between February 2004 and October 2005 and who attended a follow-up visit between August 2009 and October 2011 were included in this study. RESULTS This study evaluated 74 eyes of 65 patients with a mean postoperative follow-up of 76.28 ± 10.6 (53.65-92.02) months. Preoperative IOP was 18.37 ± 6.36 mmHg, postoperative IOP at the last follow-up was 12.85 ± 3.5 mmHg, corresponding a 30 % reduction. The number of IOP-lowering eye drops was reduced from 2.36 ± 1.24 to 1.66 ± 1.21 after more than 6 years (p < 0.05). The visual fields showed a mean deviation of - 9.16 ± 8.48 dB initially and - 9.43 ± 8.07 dB at the last follow-up (p > 0.05). Complete success (IOP ≤ 15 mmHg without eye drops or additional surgery) was achieved in 5 % of patients. Qualified success (IOP ≤ 15 mmHg with eye drops or additional surgery) was achieved in 81 %. 53 % (n = 39) underwent cyclophotocoagulation and 20 % (n = 15) needed revision surgery during the follow-up period. CONCLUSION DS is an effective long-term IOP-lowering procedure leading to visual field stabilisation.
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Affiliation(s)
- C Gesser
- Klinik und Poliklinik für Augenheilkunde, Universitätsklinikum Hamburg-Eppendorf, Hamburg
| | - A Wiermann
- Klinik und Poliklinik für Augenheilkunde, Universitätsklinikum Hamburg-Eppendorf, Hamburg
| | - M Keserü
- Klinik und Poliklinik für Augenheilkunde, Universitätsklinikum Hamburg-Eppendorf, Hamburg
| | - G Richard
- Klinik und Poliklinik für Augenheilkunde, Universitätsklinikum Hamburg-Eppendorf, Hamburg
| | - M Klemm
- Klinik und Poliklinik für Augenheilkunde, Universitätsklinikum Hamburg-Eppendorf, Hamburg
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Hossard L, Philibert A, Bertrand M, Colnenne-David C, Debaeke P, Munier-Jolain N, Jeuffroy MH, Richard G, Makowski D. Effects of halving pesticide use on wheat production. Sci Rep 2014; 4:4405. [PMID: 24651597 PMCID: PMC3960944 DOI: 10.1038/srep04405] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2013] [Accepted: 02/28/2014] [Indexed: 11/16/2022] Open
Abstract
Pesticides pose serious threats to both human health and the environment. In Europe, farmers are encouraged to reduce their use, and in France a recent environmental policy fixed a target of halving the pesticide use by 2018. Organic and integrated cropping systems have been proposed as possible solutions for reducing pesticide use, but the effect of reducing pesticide use on crop yield remains unclear. Here we use a set of cropping system experiments to quantify the yield losses resulting from a reduction of pesticide use for winter wheat in France. Our estimated yield losses resulting from a 50% reduction in pesticide use ranged from 5 to 13% of the yield obtained with the current pesticide use. At the scale of the whole country, these losses would decrease the French wheat production by about 2 to 3 millions of tons, which represent about 15% of the French wheat export.
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Affiliation(s)
- L. Hossard
- INRA, UMR211 Agronomie, F-78850 Thiverval-Grignon, France
- AgroParisTech, UMR Agronomie, F-78850 Thiverval-Grignon, France
| | - A. Philibert
- INRA, UMR211 Agronomie, F-78850 Thiverval-Grignon, France
- AgroParisTech, UMR Agronomie, F-78850 Thiverval-Grignon, France
| | - M. Bertrand
- INRA, UMR211 Agronomie, F-78850 Thiverval-Grignon, France
- AgroParisTech, UMR Agronomie, F-78850 Thiverval-Grignon, France
| | - C. Colnenne-David
- INRA, UMR211 Agronomie, F-78850 Thiverval-Grignon, France
- AgroParisTech, UMR Agronomie, F-78850 Thiverval-Grignon, France
| | - P. Debaeke
- INRA, UMR1248 AGIR, F-31320 Castanet-Tolosan, France
- Université de Toulouse, INPT, UMR AGIR, F-31029 Toulouse, France
| | - N. Munier-Jolain
- INRA, UMR1347 Agroecologie, F-21065 Dijon, France
- AgroSup Dijon, UMR Agroecologie, F-21065 Dijon, France
| | - M. H. Jeuffroy
- INRA, UMR211 Agronomie, F-78850 Thiverval-Grignon, France
- AgroParisTech, UMR Agronomie, F-78850 Thiverval-Grignon, France
| | - G. Richard
- INRA, UAR1155 Département Environnement et Agronomie, F-84914 Avignon, France
| | - D. Makowski
- INRA, UMR211 Agronomie, F-78850 Thiverval-Grignon, France
- AgroParisTech, UMR Agronomie, F-78850 Thiverval-Grignon, France
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Steinberg J, Kohl C, Katz T, Richard G, Linke SJ. [Difference and distance between the central and thinnest points of the cornea: impact of refractive state, age and ocular side]. Ophthalmologe 2013; 111:339-47. [PMID: 23921813 DOI: 10.1007/s00347-013-2892-0] [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] [Indexed: 11/30/2022]
Abstract
BACKGROUND The aim of the study was to quantify the difference in corneal thickness between the central and thinnest points (∆PachyZ-PachyD), the distance between the center of the cornea and its thinnest point (vector length PachyD) and to explore the impact of refractive state, age and ocular side. PATIENTS AND METHODS This was a multicenter, retrospective, cross-sectional study and medical records of 16,872 eyes were reviewed. The Orbscan® (Bausch and Lomb) procedure was used for pachymetry and keratometry. RESULTS The results showed that ∆PachyZ-PachyD and vector length PachyD were higher in hyperopic eyes (∆PachyZ-PachyD: 11.99 ± 12.08 µm, vector length PachyD: 0.85 ± 0.44 mm) compared to myopic eyes (∆PachyZ-PachyD: 9.2 ± 7.86 µm, vector length PachyD: 0.7 ± 0.37 mm; p < 0.001). Refractive state, age and ocular side demonstrated an independent, statistically significant impact on ∆PachyZ-PachyD and vector length PachyD. CONCLUSIONS As a result of the significant impact of refractive state, age and ocular side on ∆PachyZ-PachyD and vector length PachyD, these variables should be considered in a normative data collection.
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Affiliation(s)
- J Steinberg
- Klinik und Poliklinik für Augenheilkunde, Universitätsklinikum Hamburg-Eppendorf, Martinistr. 52, 20246, Hamburg, Deutschland,
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Hassenstein A, Scholz F, Richard G. [The new OCT generation offers deep insights: imaging of the choroid using the Cirrus OCT]. Ophthalmologe 2013; 110:239-46. [PMID: 23504095 DOI: 10.1007/s00347-012-2653-5] [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: 10/27/2022]
Abstract
BACKGROUND Until now depiction of the choroid using time domain optical coherence tomography (OCT) (Stratus III) was barely possible. Visualization of choroidal perfusion was carried out using indocyanine green angiography (ICGA). The spectral-domain OCT, such as Cirrus OCT (C-OCT) is able to image the choroid better because it offers higher resolution, increased penetration depth of the scan beam and faster acquisition of A-scan data. The aim of the study was to evaluate the potential of choroidal imaging in patients suffering from macular disease. METHODS The advanced visualization tool of C-OCT was primarily used and converted to a z-axis topography. Because of a special algorithm developed by our team, targeted imaging of the choroidal vessels was possible through the scanned two dimensional retinal areas. This image offers an extended image of choroidal vessels (large and small vessels) in several levels. In total 20 patients eyes (n = 15 with various macular diseases and n = 5 normal conditions) who underwent C-OCT and ICG angiography (HRA 2) were chosen to participate in this special algorithm. A precise correlation of ICG and choroid OCT in a semitransparent manner was carried out. RESULTS The first prototype of the recognition software prototype produced clear imaging of the choroid in 100% of cases but only in 55% in the macular region depending on the extent of macular disease. Limitations were low signal intensity and penetration depth as well as a poorly defined retinal pigment epithelium (RPE) and choriocapillaris especially in macular diseases of the RPE layer. After a black and white conversion in OCT using the software it was possible in all cases to integrate the choroidal OCT with the ICG angiogram in a semitransparent manner. This confirms that the choroidal vessels in C-OCT correlated identically with the ICG angiography. In contrast to the ICG where the contrast agent in the vessel emits a signal, the choroidal vessels are visible due to different reflectivity in the merging tissue. CONCLUSIONS These investigations showed that non-invasive topographic imaging of the choroid using spectral domain OCT, such as Cirrus OCT is now possible. Distinguishability of smaller vessels was excellent. The ICG (perfusion) and C-OCT (morphology) methods are two very different vessel imaging techniques. The integration of both methods is possible. The clinical relevance of the new image information still has to be researched.
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Affiliation(s)
- A Hassenstein
- Universitäts-Augenklinik Hamburg Eppendorf, Martinistr. 52, 20251, Hamburg, Deutschland.
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Abstract
A 23-year-old man presented with severe contact lens-associated keratitis and descemetocele with pre-existing drug therapy. After 1 week of intensive antibiotic treatment Aspergillus fumigatus was identified. Despite adjusted antimycotic treatment a corneal perforation occurred. Due to peripheral scleral infiltration the cornea was primarily closed with a double layer amniotic membrane in order to avoid a sclerokeratoplasty with a bad prognosis. After 2 weeks the peripheral corneal situation stabilized and a simple keratoplasty á chaud could be performed. After surgery and adjusted drug therapy, no adequate signs of recovery occured. In repeated microbiological testing an additional Candida albicans infection was diagnosed and therapy was readjusted. This resulted in a cure of the corneal infection. After 5 years and a re-keratoplasty the patient presented with a clear corneal transplant and a corrected visual acuity of 20/25.
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Affiliation(s)
- M-T Eddy
- Augenklinik, Universitätsklinikum Hamburg Eppendorf, Gebäude W40, Martinistr. 52, 20246, Hamburg, Deutschland.
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Atmeh AR, Chong EZ, Richard G, Festy F, Watson TF. Dentin-cement interfacial interaction: calcium silicates and polyalkenoates. J Dent Res 2012; 91:454-9. [PMID: 22436906 DOI: 10.1177/0022034512443068] [Citation(s) in RCA: 176] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The interfacial properties of a new calcium-silicate-based coronal restorative material (Biodentine™) and a glass-ionomer cement (GIC) with dentin have been studied by confocal laser scanning microscopy (CLSM), scanning electron microscopy (SEM), micro-Raman spectroscopy, and two-photon auto-fluorescence and second-harmonic-generation (SHG) imaging. Results indicate the formation of tag-like structures alongside an interfacial layer called the "mineral infiltration zone", where the alkaline caustic effect of the calcium silicate cement's hydration products degrades the collagenous component of the interfacial dentin. This degradation leads to the formation of a porous structure which facilitates the permeation of high concentrations of Ca(2+), OH(-), and CO(3) (2-) ions, leading to increased mineralization in this region. Comparison of the dentin-restorative interfaces shows that there is a dentin-mineral infiltration with the Biodentine, whereas polyacrylic and tartaric acids and their salts characterize the penetration of the GIC. A new type of interfacial interaction, "the mineral infiltration zone", is suggested for these calcium-silicate-based cements.
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Affiliation(s)
- A R Atmeh
- Biomaterials, Biomimetics and Biophotonics, King's College London Dental Institute, Floor 17 Tower Wing, Guy's Hospital, London Bridge, London SE1 9RT, UK
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Abstract
BACKGROUND Canaloplasty provides a new option in non-penetrating glaucoma surgery. The aim of this study is to examine its early postsurgical safety and efficacy. PATIENTS AND METHODS This was a retrospective study of canaloplasties performed at our institution in 2009 (n=46, 13 of which were combined with cataract surgery). The mean follow-up was 6.0±3.4 months. The most important parameters examined were intraocular pressure (IOP), number of topical medications, postoperative complications, and required additional surgery. RESULTS Mean presurgical IOP: 18.2±5.8 mmHg on a mean of 2.3±1.2 applied topical medications. Mean postsurgical IOP: 12.3±5.1 mmHg at 3 months, 11.7±3.0 mmHg at 6 months, and 12.6±2.4 mmHg at 12 months. Number of postsurgical medications: 0.8±1.1 at 3 months, 1.2±1.3 at 6 months, and 1.0±1.1 at 12 months. The most frequent postoperative complications were transient hypotension (32.6%), bleb leakage (26.1%), and microhyphema (23.9%). Revision surgery was required in 8.7% of all patients. CONCLUSIONS Canaloplasty showed a good IOP-reducing effect. Complications occurred mostly temporarily and were of a controllable nature.
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Affiliation(s)
- M Matthaei
- Klinik und Poliklinik für Augenheilkunde, Universitätsklinikum Hamburg-Eppendorf, Martinistr. 52, 20246, Hamburg, Deutschland
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Keserü M, Knospe V, Menz A, Richard G, Meyer-Rüsenberg HW, Green S, Galambos P. [Bilateral conjunctival manifestation of a generalized Kaposi's sarcoma in a patient with ataxia teleangiectatica (Louis-Bar-Syndrome)]. Klin Monbl Augenheilkd 2011; 229:255-6. [PMID: 22189829 DOI: 10.1055/s-0031-1281838] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- M Keserü
- Klinik und Poliklinik für Augenheilkunde, Universitätsklinikum Hamburg-Eppendorf.
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Richard G, Finkelstein R, Oberlé D, Rainis N, Scharnitzky P. Être désigné juré d’assises : une analyse des attitudes de citoyens français face à une convocation simulée du tribunal. PRAT PSYCHOL 2011. [DOI: 10.1016/j.prps.2009.09.003] [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]
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Lieve K, Williams L, Daly A, Richard G, Bale S, Macaya D, Chung W. Result of Genetic Testing in 856 Consecutive Unrelated Patients Referred for Long QT Syndrome in a Clinical Laboratory. Heart Rhythm 2011. [DOI: 10.1016/j.hrthm.2011.09.048] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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Snyder LA, Honea N, Coons SW, Eschbacher J, Smith KA, Spetzler RF, Sanai N, Groves MD, DeGroot J, Tremont I, Forman A, Kang S, Pei BL, Julie W, Schultz D, Yuan Y, Guha N, Hwu WJ, Papadopoulos N, Camphausen K, Yung WA, Ryken T, Johnston SK, Graham C, Grimm S, Colman H, Raizer J, Chamberlain MC, Mrugala MM, Adair JE, Beard BC, Silbergeld DL, Rockhill JK, Kiem HP, Lee EQ, Batchelor TT, Lassman AB, Schiff DS, Kaley TJ, Wong ET, Mikkelsen T, Purow BW, Drappatz J, Norden AD, Beroukhim R, Weiss S, Alexander BM, Sceppa C, Gerard M, Hallisey SD, Bochacki CA, Smith KH, Muzikansky AM, Wen PY, Peereboom DM, Mikkelson T, Sloan AE, Rich JN, Supko JG, Ye X, Brewer C, Lamborn K, Prados M, Grossman SA, Zhu JJ, Recht LD, Colman H, Kesari S, Kim LJ, Balch AH, Pope CC, Brulotte M, Beelen AP, Chamberlain MC, Wong ET, Ram Z, Gutin PH, Stupp R, Marsh J, McDonald K, Wheeler H, Teo C, Martin L, Palmer L, Rodriguez M, Buckland M, Koh ES, Back M, Robinson B, Joseph D, Nowak AK, Saito R, Sonoda Y, Yamashita Y, Kanamori M, Kumabe T, Tominaga T, Rodon J, Tawbi HA, Thomas AL, Amakye DD, Granvil C, Shou Y, Dey J, Buonamici S, Dienstmann R, Mita AC, Dummer R, Hutterer M, Martha N, Sabine E, Thaddaus G, Florian S, Christine M, Stefan O, Richard G, Martin M, Johanna B, Jochen T, Ullrich H, Wolfgang W, Peter V, Gunther S, Field KM, Cher L, Wheeler H, Hovey E, Nowak AK, Simes J, Sawkins K, France T, Brown C, Nicholas MK, Chmura S, Paleologos N, Krouwer H, Malkin M, Junck L, Vick NA, Lukas RV, Jaeckle KA, Anderson SK, Kosel M, Sarkaria J, Brown P, Flynn PJ, Buckner JC, Galanis E, Batchelor T, Grossman S, Brem S, Lesser G, Voloschin A, Nabors LB, Mikkelsen T, Desideri S, Supko J, Peereboom D, Westphal M, Pietsch T, Bach F, Heese O, Vredenburgh JJ, Desjardins A, Reardon DA, Peters KB, Kirkpatrick JP, Herndon JE, Coan AD, Bailey L, Janney D, Lu C, Friedman HS, Desjardins A, Reardon DA, Peters KB, Herndon JE, Gururangan S, Norfleet J, Friedman HS, Vredenburgh JJ, Lassman AB, Kaley TJ, DeAngelis LM, Hormigo A, Mellinghoff IK, Otap DD, Seger J, Doyle LA, Ludwig E, Lacouture ME, Panageas KS, Rezazadeh A, LaRocca RV, Vitaz TW, Villanueva WG, Hodes J, Haysley L, Pertschuk D, Cloughesy TF, Chang SM, Aghi MK, Vogelbaum MA, Liau LM, Shafa B, Jolly DJ, Ibanez CE, Perez OD, Robbins JM, Gruber HE, Maher EA, Stewart C, Hatanpaa K, Raisanen J, Mashimo T, Yang XL, Muralidhara C, Madden C, Ramachandran A, Mickey B, Bachoo R. ONGOING CLINICAL TRIALS. Neuro Oncol 2011; 13:iii85-iii91. [PMCID: PMC3199166 DOI: 10.1093/neuonc/nor154] [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: 11/27/2023] Open
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Hassenstein A, Scholz F, Richard G. [EYECUBE as 3D multimedia imaging in macular diagnostics]. Klin Monbl Augenheilkd 2011; 228:991-4. [PMID: 21656460 DOI: 10.1055/s-0031-1273343] [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: 10/18/2022]
Abstract
BACKGROUND In the new generation of EYECUBE devices, the angiography image and the OCT are included in a 3D illustration as an integration. Other diagnostic procedures such as autofluorescence and ICG can also be correlated to the OCT. The aim was to precisely classify various two-dimensional findings in relation to each other. METHOD The new generation of OCT devices enables imaging with a low incidence of motion artefacts with very good fundus image quality - and with that, permits a largely automatic classification. The feature enabling the integration of the EYECUBE was further developed with new software, so that not only the topographic image (red-free, autofluorescence) can be correlated to the Cirrus OCT, but also all other findings gathered within the same time frame can be correlated to each other. These were brightened and projected onto the cube surface in a defined interval. The imaging procedures can be selected in a menu toolbar. Topographic volumetry OCT images can be overlayed. The practical application of the new method was tested on patients with macular disorders. RESULTS By lightening up the results from various diagnostic procedures, it is possible of late to directly compare pathologies to each other and to the OCT results. In all patients (n = 45 eyes) with good single-image quality, the automated integration into the EYECUBE was possible (to a great extent). The application is not dependent on a certain type of device used in the procedures performed. CONCLUSIONS The increasing level of precision in imaging procedures and the handling of large data volumes has led to the possibility of examining each macular diagnostics procedure from the comparative perspective: imaging (photo) with perfusion (FLA, ICG) and morphology (OCT). The exclusion of motion artefacts and the reliable scan position in the course of the imaging process increases the informative value of OCT.
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Cartier C, Laroche L, Deshommes E, Nour S, Richard G, Edwards M, Prévost M. Investigating dissolved lead at the tap using various sampling protocols. ACTA ACUST UNITED AC 2011. [DOI: 10.1002/j.1551-8833.2011.tb11420.x] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Chang H, Richard G, Julius AA, Belta C, Amar S. An application of monotone functions decomposition to the reconstruction of gene regulatory networks. Annu Int Conf IEEE Eng Med Biol Soc 2011; 2011:2430-2433. [PMID: 22254832 DOI: 10.1109/iembs.2011.6090676] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We describe the reconstruction of a gene regulatory network involved with the Toll-like Receptor signaling pathways. By applying our recent identification algorithm to a time series gene expression dataset, we identify regulatory interactions between genes and construct discrete-time piece-wise affine regulatory functions. Our validation shows that our model predicts the expression levels of the genes involved in the network with good accuracy.
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Affiliation(s)
- H Chang
- Dept of Mechanical Engineering, Boston University, Boston, MA 02215, USA.
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Abstract
LASIK has become the preferred surgical procedure for the correction of refractive errors. Microbial keratitis is a rare but severe complication. The incidence of post-LASIK keratitis, (uni- and bilateral) is difficult to estimate. The risk of bilateral infection could until now only be approximated by calculating it from the risk of unilateral infection. Due to the fortunately low incidence of post-LASIK keratitis, large-scale studies are necessary to obtain valid statistical data. The American Society of Cataract and Refractive surgery (ASCRS) developed a post-LASIK infectious keratitis survey in 2001. 116 post-LASIK infections were reported by the members of the society. The calculated incidence was 0.035 % or 1 infection in every 2919 procedures. Llovet et al. found 9 patients (18 eyes) with bilateral post-LASIK keratitis out of 204 586 procedures (incidence 0.0084 %). Gram-positive bacteria and atypical mycobacteria are the most common causes for microbial post-LASIK keratitis. There is an increasing literature of post-LASIK case reports caused by rare or atypical species. Severe cases of keratitis are more often correlated with a prolonged onset of infection and caused by atypical species. An overview of the current literature and our own data regarding post-LASIK keratitis (uni-, and bilateral) are presented.
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Affiliation(s)
- S J Linke
- Universitätsklinikum Eppendorf, Klinik und Poliklinik für Augenheilkunde, Martinistrasse 52, Hamburg.
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Fize D, Richard G, Jouffrais C, Fabre-Thorpe M. EEG signals of rapid visual categorization in monkeys, in V4 area. J Vis 2010. [DOI: 10.1167/9.8.796] [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: 11/24/2022] Open
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Meyer-Ruesenberg B, Richard G. Neue Erkenntnisse zur unterschätzten Beeinträchtigung der Lebensqualität bei altersbedingter Makuladegeneration – ein Literaturüberblick. Klin Monbl Augenheilkd 2010; 227:646-52. [DOI: 10.1055/s-0029-1245118] [Citation(s) in RCA: 2] [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: 10/19/2022]
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Billard C, Bricout L, Ducot B, Richard G, Ziegler J, Fluss J. Évolution des compétences en lecture, compréhension et orthographe en environnement socioéconomique défavorisé et impact des facteurs cognitifs et comportementaux sur le devenir à deux ans. Rev Epidemiol Sante Publique 2010; 58:101-10. [DOI: 10.1016/j.respe.2009.11.002] [Citation(s) in RCA: 5] [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] [Received: 05/22/2009] [Revised: 10/26/2009] [Accepted: 11/03/2009] [Indexed: 10/19/2022] Open
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Hassenstein A, Spital G, Scholz F, Henschel A, Richard G, Pauleikhoff D. [Optical coherence tomography for macula diagnostics. Review of methods and standardized application concentrating on diagnostic and therapy control of age-related macula degeneration]. Ophthalmologe 2009; 106:116-26. [PMID: 19156426 DOI: 10.1007/s00347-008-1901-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
BACKGROUND Optical coherence tomography (OCT) has gained increasing relevance for follow-up after the treatment of macular diseases especially after anti-VEGF therapy. Therefore it seemed reasonable to develop standardized evaluation strategies and OCT examination guidelines for Stratus OCT III. MATERIALS AND METHODS Basic guidelines for the Stratus OCT III examination of macular diseases were developed. The first part contains basic advice for the OCT examination with respect to the examiner, patients, image quality, movement artefacts, algorithms, archiving and interpretation of OCT images. The second part consists of the relevance and indications for OCT examination especially in age-related macular degeneration (AMD), subgroups of AMD and follow-up after treatment. The third part demonstrates a brief outlook on future developments, such as the digital integration method (DIM), which provides identical scan localization in follow-up and eliminates any movement artefacts. CONCLUSION The application of standardized routine scanning and analysis protocols in Stratus OCT III for macular diseases and follow-up examinations provides an optimized, time-saving and comparable use of OCT. Therefore, the relevance and quality of OCT is increased for routine use in outpatient departments, hospitals and also for clinical studies.
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Affiliation(s)
- A Hassenstein
- Universitäts-Augenklinik Hamburg Eppendorf, Martinistrasse 52, 20251 Hamburg, Deutschland.
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Hillairet D, Richard G, Bouchet P. The dual management of innovation by the Decathlon group. A distinctive strategic system on the sport goods market. Journal of Innovation Economics & Management 2009. [DOI: 10.3917/jie.003.0189] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Billard C, Fluss J, Ducot B, Bricout L, Richard G, Ecalle J, Magnan A, Warszawski J, Ziegler J. [Deficits in reading acquisition in primary school: cognitive, social and behavioral factors studied in a sample of 1062 children]. Rev Epidemiol Sante Publique 2009; 57:191-203. [PMID: 19398285 DOI: 10.1016/j.respe.2009.02.205] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2008] [Revised: 01/13/2009] [Accepted: 02/16/2009] [Indexed: 10/20/2022] Open
Abstract
BACKGROUND Reading impairment is the major learning disability in children. While research on illiteracy has mainly been conducted from a sociological perspective, research on dyslexia has typically been studied from a cognitive-linguistic perspective. Studies that jointly investigate sociological, behavioral and cognitive factors in predicting reading outcome are rare and limited to English-speaking populations. The goal of the present study was to screen second grade children with reading impairment in French urban elementary schools and to pin down the factors that explain the various facets of reading failure and success. METHODS A total of 1062 children from 20 different schools in the city of Paris participated in the study. Different aspects of reading were assessed individually for children with a suspected impairment in reading acquisition. Subsequently, 131 poor readers and 50 typically developing readers were matched for sex, age, and school. For these children, medical, cognitive, behavioral and individual socioeconomic data were obtained. Group differences were examined and multiple regression analyses were conducted to examine how much variance in reading was explained by the various variables. RESULTS The prevalence of poor reading skills in grade 2 was highly influenced by neighborhood socioeconomic status (SES) (ranging from 3.3% in high SES to 20.5% in low SES areas). Among the SES variables, employment of the father was a significant predictor of poor reading. Among the cognitive variables, phonological awareness and rapid naming were the most significant factors, much more than verbal or nonverbal intelligence. Among the behavioral variables, attention was an important factor but not externalized symptoms. Multiple regression analyses showed that reading outcome was best predicted by phonological awareness skills and attention deficits. CONCLUSION The majority of children with reading disability come from low SES areas. As in the English literature, the most robust predictor for reading impairment is phonological awareness, even when SES is taken into account. In addition, attention deficits seemed to aggravate reading impairments for children with weak phonological awareness skills. Successful early prevention should focus on reinforcing phonological awareness, recoding and attention skills.
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Affiliation(s)
- C Billard
- Unité de rééducation neurologique pédiatrie, centre de référence sur les troubles des apprentissages, hôpital Bicêtre, Le Kremlin-Bicêtre, France.
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Hassenstein A, Scholz F, Inhoffen W, Richard G. Die Bedeutung der digitalen Integrationsmethode (DIM) von OCT und FLA für die klinische Anwendung. Klin Monbl Augenheilkd 2009; 226:90-6. [DOI: 10.1055/s-2008-1027872] [Citation(s) in RCA: 2] [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: 10/21/2022]
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Linke S, Haberland P, Richard G, Katz T. Sicherheit und Effektivität nach Implantation phaker Intraokularlinsen (Artisan). Klin Monbl Augenheilkd 2009. [DOI: 10.1055/s-0029-1213660] [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]
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