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Sarkar R, Samuel D, Dunbar L, Monnerat G. 5 years of The Lancet Digital Health. Lancet Digit Health 2024; 6:e299. [PMID: 38670735 DOI: 10.1016/s2589-7500(24)00073-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/28/2024]
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Schee JP, Ang CL, Crystal Teoh SC, Tan HJ, Chew SH, Steven A, Hii DW, Chin YT, Loh EW, Samuel D, Narayanan P, Husin M, Linda Then YY, Cheah CF, Cheah WK, Isa ZC, Ibrahim A, Chia YK, Ibrahim KA, Looi I, Law WC, Abdul Aziz Z. Intravenous thrombolysis for multi-ethnic Asians with acute ischaemia stroke in Malaysian public primary stroke centres versus acute stroke ready hospitals: Comparison of real-world clinical outcomes. Med J Malaysia 2023; 78:594-601. [PMID: 37775485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 10/01/2023]
Abstract
INTRODUCTION Intravenous thrombolysis (IVT) with recombinant tissue plasminogen activator is beneficial in acute ischaemic stroke (AIS). We aim to compare the realworld clinical outcomes and service efficiency of IVT in Malaysian primary stroke centres (PSCs) versus acute stroke ready hospitals (ASRHs). MATERIALS AND METHODS We conducted a multi-centre cohort study involving 5 PSCs and 7 ASRHs in Malaysia. Through review of medical records of AIS patients who received IVT from 01 January 2014 to 30 June 2021, real-world data was extracted for analysis. Univariate and multivariate regression models were employed to evaluate the role of PSCs versus ASRHs in post-IVT outcomes and complications. Statistical significance was set at p<0.05. RESULTS A total of 313 multi-ethnic Asians, namely 231 from PSCs and 82 from ASRHs, were included. Both groups were comparable in baseline demographic, clinical, and stroke characteristics. The efficiency of IVT delivery (door-toneedle time), functional outcomes (mRS at 3 months post- IVT), and rates of adverse events (intracranial haemorrhages and mortality) following IVT were comparable between the 2 groups. Notably, 46.8% and 48.8% of patients in PSCs and ASRHs group respectively (p=0.752) achieved favourable functional outcome (mRS≤1 at 3 months post-IVT). Regression analyses demonstrated that post-IVT functional outcomes and adverse events were independent of the role of PSCs or ASRHs. CONCLUSION Our study provides real-world evidence which suggests that IVT can be equally safe, effective, and efficiently delivered in ASRHs. This may encourage the establishment of more ASRHs to extend the benefits of IVT to a greater proportion of stroke populations and enhance the regional stroke care.
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Affiliation(s)
- J P Schee
- Tawau Hospital, Department of Medicine, Sabah, Malaysia
| | - C L Ang
- Tawau Hospital, Department of Medicine, Sabah, Malaysia
| | - S C Crystal Teoh
- Sarawak General Hospital, Department of Medicine, Sarawak, Malaysia.
| | - H J Tan
- Raja Permaisuri Bainun Hospital, Department of Medicine, Perak, Malaysia
| | - S H Chew
- Queen Elizabeth Hospital, Department of Medicine, Sabah, Malaysia
| | - A Steven
- Sarawak General Hospital, Department of Medicine, Sarawak, Malaysia
| | - D W Hii
- Sarawak General Hospital, Department of Medicine, Sarawak, Malaysia
| | - Y T Chin
- Sultanah Nur Zahirah Hospital, Department of Medicine, Terengganu, Malaysia,
| | - E W Loh
- Bintulu Hospital, Department of Medicine, Sarawak, Malaysia
| | - D Samuel
- Bintulu Hospital, Department of Medicine, Sarawak, Malaysia
| | - P Narayanan
- Sarikei Hospital, Department of Medicine, Sarawak, Malaysia
| | - M Husin
- Sultanah Nur Zahirah Hospital, Department of Medicine, Terengganu, Malaysia
| | - Y Y Linda Then
- Sarawak General Hospital, Department of Medicine, Sarawak, Malaysia
| | - C F Cheah
- Raja Permaisuri Bainun Hospital, Department of Medicine, Perak, Malaysia
| | - W K Cheah
- Raja Permaisuri Bainun Hospital, Department of Medicine, Perak, Malaysia
| | - Z C Isa
- Sultan Abdul Halim Hospital, Department of Medicine, Kedah, Malaysia
| | - A Ibrahim
- Sultan Abdul Halim Hospital, Department of Medicine, Kedah, Malaysia
| | - Y K Chia
- Queen Elizabeth Hospital, Department of Medicine, Sabah, Malaysia
| | - K A Ibrahim
- Sultan Abdul Halim Hospital, Department of Medicine, Kedah, Malaysia
| | - I Looi
- Seberang Jaya Hospital, Department of Medicine, Penang, Malaysia
| | - W C Law
- Sarawak General Hospital, Department of Medicine, Sarawak, Malaysia
| | - Z Abdul Aziz
- Sultanah Nur Zahirah Hospital, Department of Medicine, Terengganu, Malaysia
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Louvion E, Santos C, Samuel D. Rehabilitation after proximal interphalangeal joint replacement: A structured review of the literature. Hand Surg Rehabil 2021; 41:14-21. [PMID: 34619399 DOI: 10.1016/j.hansur.2021.09.007] [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] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 09/07/2021] [Accepted: 09/14/2021] [Indexed: 11/29/2022]
Abstract
Proximal interphalangeal (PIP) joint arthroplasty is an unsolved biomechanical challenge despite advances in materials and new implant designs. This leads to a high rate of complications. Moreover, there is heterogeneity in postoperative management according to the literature. The present structured review examined the therapeutic strategies utilized by physiotherapists to restore a functional finger chain and prevent postoperative complications following PIP joint replacement. Patients undergoing primary total PIP joint arthroplasty of the index, ring, middle or little finger were included. Articles published from 2008 onwards, in French or English, and reporting on PIP joint replacement and postoperative management, were included. Therapeutic strategies were organized according to the surgical approach. Details of splint strategies, mobilization and muscle strengthening and management of postoperative complications were collected. Forty-eight studies, 3 of which provided a description of surgical techniques, were included. In relation to hand function, most authors advocated joint mobilization (n = 45) and some recommended muscle strengthening (n = 4). Static (n = 43) and dynamic splints (n = 14) and buddy taping (n = 12) were frequently recommended to prevent and manage postoperative complications. Few studies (n = 13) reported wound assessment or control of postoperative edema. Precise recommendations concerning therapeutic strategies following PIP joint arthroplasty cannot be made based on available evidence. Specific protocols for rehabilitation following PIP joint replacement need to be clarified in future research.
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Affiliation(s)
- E Louvion
- Institut de formation en Masso-Kinésithérapie de Dijon, 6 Bis Rue de Cromois, 21000 Dijon, France.
| | - C Santos
- Institut de formation en Masso-Kinésithérapie de Dijon, 6 Bis Rue de Cromois, 21000 Dijon, France.
| | - D Samuel
- Faculty of Environmental and Life Sciences, University of Southampton, Southampton SO17 1BJ, United Kingdom.
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Gagnon R, El Hallani S, Lee-Ying R, Kolinsky M, Khalaf D, Cook S, Vasquez C, Samuel D, Lewis J, Faridi R, Borkar M, Heng D, Alimohamed N, Ruether J, Gotto G, Fairey A, Bismar T, Yip S. 604P Predictive genomic biomarkers in non-metastatic castration resistant prostate cancer (nmCRPC) treated with androgen receptor pathway inhibitors (ARPi). Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.1117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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N. Salah N, Abdelkrim R, F. Pierre D, Samuel D, Fadila L. Electrochemical studies of 1-ferrocenylmethyl-3-methyl-imidazolium iodide and 1-(ferrocenylmethyl)-3-mesityl-imidazolium iodide: redox potential and substituent effects. B CHEM SOC ETHIOPIA 2021. [DOI: 10.4314/bcse.v34i3.15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The electrochemical behavior of 1-ferrocenylmethyl-3-(methyl)-imidazolium iodide (or mesityl) imidazolium was studied by cyclic voltammetry at glassy carbon electrode in midiums organic to determine the influences of electronic imidazolium group on the ferrocene. The experimental results indicated that the redox reaction was reversible. Mass transport towards the electrode is a simple diffusion process and the diffusion coefficient (D) for redox couple has been also calculated and we have evaluated the heterogeneous charge transfer rate constant (K0).
KEY WORDS: Electrochemical behaviour, Cyclic voltammetry, Imidazolium salts, Diffusion coefficient
Bull. Chem. Soc. Ethiop. 2020, 34(3), 605-612.
DOI: https://dx.doi.org/10.4314/bcse.v34i3.15
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Samuel D, Ratcliffe J, Fazzari M, Nevadunsky N, Gressel G. Characterization of venous thromboembolism risk in patients with endometrioid endometrial adenocarcinoma. Gynecol Oncol 2020. [DOI: 10.1016/j.ygyno.2020.05.325] [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: 11/28/2022]
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Samuel D, Miller D, Isani S, Kuo D, Gressel G. A cross-sectional analysis of opioid prescribing patterns among gynecologic oncologists using Medicare fee-for-service provider utilization and payment data. Gynecol Oncol 2019. [DOI: 10.1016/j.ygyno.2019.04.389] [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: 11/17/2022]
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Biondani P, De Martin E, Samuel D. Safety of an anti-PD-1 immune checkpoint inhibitor in a liver transplant recipient. Ann Oncol 2019; 29:286-287. [PMID: 29293878 DOI: 10.1093/annonc/mdx548] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Affiliation(s)
- P Biondani
- AP-HP Hôpital Paul-Brousse, Département d'Oncologie Médicale, Villejuif, F-94800, France
| | - E De Martin
- AP-HP Hôpital Paul-Brousse, Centre Hépato-Biliaire, Univ Paris-Sud, UMR-S 1193, Université Paris-Saclay, Inserm, Unité 1193, Université Paris-Saclay, DHU Hepatinov, Villejuif, F-94800, France
| | - D Samuel
- AP-HP Hôpital Paul-Brousse, Centre Hépato-Biliaire, Univ Paris-Sud, UMR-S 1193, Université Paris-Saclay, Inserm, Unité 1193, Université Paris-Saclay, DHU Hepatinov, Villejuif, F-94800, France
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Berenguer M, Agarwal K, Burra P, Manns M, Samuel D. The road map toward an hepatitis C virus-free transplant population. Am J Transplant 2018; 18:2409-2416. [PMID: 29935050 DOI: 10.1111/ajt.14976] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Revised: 05/14/2018] [Accepted: 06/15/2018] [Indexed: 01/25/2023]
Abstract
Antiviral therapy to eradicate hepatitis C virus (HCV) infection improves outcomes in patients undergoing liver transplantation (LT) for advanced chronic HCV with or without hepatocellular carcinoma. Traditionally, antiviral therapy focused on the use of interferon (IFN)-based regimens, with antiviral treatment initiated in the posttransplant period once recurrent HCV disease with fibrosis in the allograft was identified. The use of IFN-based therapy was limited in pretransplant patients with advanced liver disease. Earlier intervention, either before transplantation or early after LT, is now feasible with the advent of second-generation direct-acting antiviral agents (DAAs) with superior tolerability and efficacy to IFN-based therapy. These agents have the potential to reduce the number of patients developing HCV-related complications requiring LT and retransplantation, as well as reducing the demand for donor organs. We discuss the pros and cons of pretransplant, peritransplant, and posttransplant therapy with current DAAs, citing available data from clinical trials and real-world experience.
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Affiliation(s)
- M Berenguer
- Liver Transplantation & Hepatology Unit, Hospital Universitario La Fe, University of Valencia-CIBEReHD, Valencia, Spain
| | - K Agarwal
- Institute of Liver Studies, King's College Hospital, London, UK
| | - P Burra
- Multivisceral Transplant Unit, Gastroenterology, Department of Surgery, Oncology and Gastroenterology, Padova University Hospital, Padova, Italy
| | - M Manns
- Department of Gastroenterology, Hepatology, and Endocrinology, Hannover Medical School, Hannover, Germany
| | - D Samuel
- Inserm-Paris Sud Unit 1193, Centre Hepatobiliaire, Hopital Paul Brousse, Villejuif, France
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Campbell K, Samuel D, Dragatsi D. Treating Patient Well-Being in a Psychiatric Emergency Room. Psychiatr Serv 2018; 69:1113. [PMID: 30122134 DOI: 10.1176/appi.ps.691001] [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: 12/01/2022]
Affiliation(s)
- Kendra Campbell
- The authors are with the Comprehensive Psychiatric Emergency Program, Columbia University Medical Center (CUMC). Dr. Samuel and Dr. Dragatsi are also with the Department of Psychiatry at CUMC
| | - Diana Samuel
- The authors are with the Comprehensive Psychiatric Emergency Program, Columbia University Medical Center (CUMC). Dr. Samuel and Dr. Dragatsi are also with the Department of Psychiatry at CUMC
| | - Dianna Dragatsi
- The authors are with the Comprehensive Psychiatric Emergency Program, Columbia University Medical Center (CUMC). Dr. Samuel and Dr. Dragatsi are also with the Department of Psychiatry at CUMC
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Anty R, Favre G, Coilly A, Rossignol E, Houssel-Debry P, Duvoux C, De Ledinghen V, Di Martino V, Leroy V, Radenne S, Kamar N, Canva V, D'Alteroche L, Durand F, Dumortier J, Lebray P, Besch C, Tran A, Canivet CM, Botta-Fridlund D, Montialoux H, Moreno C, Conti F, Silvain C, Perré P, Habersetzer F, Abergel A, Debette-Gratien M, Dharancy S, Esnault VLM, Fougerou-Leurent C, Cagnot C, Diallo A, Veislinger A, Danjou H, Samuel D, Pageaux GP, Duclos-Vallée JC. Safety of sofosbuvir-based regimens after liver transplantation: longitudinal assessment of renal function in the prospective ANRS CO23 CUPILT study. Aliment Pharmacol Ther 2018; 47:1682-1689. [PMID: 29665081 DOI: 10.1111/apt.14639] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [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] [Received: 12/07/2017] [Revised: 01/09/2018] [Accepted: 03/07/2018] [Indexed: 01/01/2023]
Abstract
BACKGROUND In liver transplant recipients with hepatitis C virus recurrence, there is concern about renal safety of sofosbuvir-based regimens. Changes in serum creatinine or in the estimated glomerular filtration rate (eGFR) under treatment are used to look for possible renal toxicity. However, serum creatinine and eGFR are highly variable. AIM To analyse renal function trajectory with numerous assays of serum creatinine over a long period of time. METHODS In a multicentre cohort of 139 patients, the eGFR was obtained from serum creatinine using the Chronic Kidney Disease-Epidemiology Collaboration (CKD-EPI) equation. Slopes of eGFR were defined as a change in eGFR during a period divided by time. Pre-treatment, on-treatment and post-treatment periods were 9 months, 3-9 months and 4.5 months. Interactions between eGFR slopes and the pre-treatment eGFR, use of ribavirin or mycophenolate mofetil, and stage of fibrosis were addressed. On-treatment eGFR slopes were separated in tertiles. Pre- and post-treatment eGFR slopes were compared globally and according to tertiles. RESULTS The post-treatment eGFR slope was significantly better than pre-treatment eGFR slope (+0.18 (IQR -0.76 to +1.32) vs -0.11 (IQR -1.01 to +0.73) mL/min/1.73 m2 /month, P = 0.03) independently of the pre-treatment eGFR (P = 0.99), ribavirin administration (P = 0.26), mycophenolate mofetil administration (P = 0.51) and stage of fibrosis (F3 and F4 vs lower stages, P = 0.18; F4 vs lower stages, P = 0.08; F4 Child-Pugh B and C vs lower stages, P = 0.38). Tertiles of on-treatment eGFR slopes were -1.71 (IQR -2.54 to -1.48), -0.78 (IQR -1.03 to -0.36) and +0.75 (IQR +0.28 to +1.47) mL/min/1.73 m2 /month. Pre- and post-treatment eGFR slopes were not significantly different according to tertiles (respectively, P = 0.34, 0.08, 0.73). CONCLUSION The eGFR varies during treatment and gives a confusing picture of the renal safety of sofosbuvir-based regimens. In contrast, longitudinal assessment of the eGFR shows a rising trajectory over longer time, meaning that these therapies are safe for the kidneys in our cohort of liver transplant recipients.
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Abstract
Management of invasive aspergillosis of the paranasal sinuses requires sufficient experience to initiate appropriate investigations and then utilize the correct treatment protocol. Computed tomography (CT) or magnetic resonance imaging (MRI) is essential to show the extent of the disease and diagnosis is confirmed by histological analysis. Aspergillus flavus is a ubiquitous soil saprophyte in the Sudan and is responsible for many cases originating from this area. The literature is reviewed and treatment options discussed.
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Affiliation(s)
- P Tierney
- Department of Otolaryngology-Head & Neck Surgery, St Mary's Hospital, London, England
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Tharinger H, Rebbapragada I, Samuel D, Novikov N, Nguyen MH, Jordan R, Frey CR, Pflanz S. Antibody-dependent and antibody-independent uptake of HBsAg across human leucocyte subsets is similar between individuals with chronic hepatitis B virus infection and healthy donors. J Viral Hepat 2017; 24:506-513. [PMID: 28012213 DOI: 10.1111/jvh.12667] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Accepted: 11/28/2016] [Indexed: 12/13/2022]
Abstract
Maintaining detectable levels of antibodies to hepatitis B surface antigen (HBsAg) in serum after HBsAg sero-conversion is the key clinical endpoint indicative of recovery from infection with hepatitis B virus (HBV). As HBV-infected hepatocytes secrete HBsAg subviral particles in vast excess over HBV virions, detectable hepatitis B surface antibody (anti-HBs) titres imply complete elimination of HBV virions as well as HBsAg particles. Although intrahepatic phagocytes, for example Kupffer cells, are thought to mediate clearance of HBsAg via antibody (Ab)-dependent and Ab-independent mechanisms, the relative contributions of circulating phagocytic cell types to HBsAg elimination are poorly characterized. Understanding the role of various immune cell subsets in the clearance of HBsAg is important because Ab-dependent or Ab-independent phagocytic HBsAg uptake may modulate presentation of HBsAg-derived epitopes to antigen-specific T cells and hence plays a critical role in adaptive immunity against HBV. This study aims to characterize phagocytic leucocyte subsets capable of internalizing HBsAg immune complexes (HBsAg:IC) or un-complexed HBsAg particles in whole blood directly ex vivo. The data show that uptake of HBsAg:IC occurs most prominently in monocytes, B cells, dendritic cells and in neutrophils. In contrast, B cells, and to a lesser degree also monocytes, seem to be effective phagocytes for un-complexed HBsAg. Importantly, a similar pattern of phagocytic HBsAg uptake was observed in blood from chronic hepatitis B (CHB) patients compared to healthy controls, suggesting that phagocytosis-related cellular functions are not altered in the context of CHB.
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Affiliation(s)
- H Tharinger
- Department of Immunology, Gilead Sciences, Inc., Foster City, CA, USA
| | - I Rebbapragada
- Department of Immunology, Gilead Sciences, Inc., Foster City, CA, USA
| | - D Samuel
- Biology Core Support, Gilead Sciences, Inc., Foster City, CA, USA
| | - N Novikov
- Biology Core Support, Gilead Sciences, Inc., Foster City, CA, USA
| | - M H Nguyen
- Division of Gastroenterology and Hepatology, Stanford University Medical Center, Palo Alto, CA, USA
| | - R Jordan
- Discovery Virology, Gilead Sciences, Inc., Foster City, CA, USA
| | - C R Frey
- Department of Immunology, Gilead Sciences, Inc., Foster City, CA, USA
| | - S Pflanz
- Department of Immunology, Gilead Sciences, Inc., Foster City, CA, USA
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Antonini T, Roque-Afonso A, Samuel D, Duclos-Vallée J, Coilly A, Gagnard J, Derradji O, Wyplosz B. Couverture vaccinale des candidats à une transplantation hépatique : état des lieux chez 76 malades et évaluation d’une vaccination en hospitalisation. Med Mal Infect 2017. [DOI: 10.1016/j.medmal.2017.03.312] [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: 10/19/2022]
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Marcellin P, Ahn SH, Chuang WL, Hui AJ, Tabak F, Mehta R, Petersen J, Lee CM, Ma X, Caruntu FA, Tak WY, Elkhashab M, Lin L, Wu G, Martins EB, Charuworn P, Yee LJ, Lim SG, Foster GR, Fung S, Morano L, Samuel D, Agarwal K, Idilman R, Strasser SI, Buti M, Gaeta GB, Papatheodoridis G, Flisiak R, Chan HLY. Predictors of response to tenofovir disoproxil fumarate plus peginterferon alfa-2a combination therapy for chronic hepatitis B. Aliment Pharmacol Ther 2016; 44:957-966. [PMID: 27629859 DOI: 10.1111/apt.13779] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [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] [Received: 05/27/2016] [Revised: 06/17/2016] [Accepted: 08/04/2016] [Indexed: 12/30/2022]
Abstract
BACKGROUND In patients with chronic hepatitis B, tenofovir disoproxil fumarate (TDF) plus pegylated interferon (PEG-IFN) for 48-weeks results in higher rates of hepatitis B surface antigen (HBsAg) loss than either monotherapy. AIM To identify baseline and on-treatment factors associated with HBsAg loss at Week 72 and provide a model for predicting HBsAg loss in patients receiving combination therapy for 48 weeks. METHODS A secondary analysis of data from an open-label study where patients were randomised to TDF (300 mg/day, oral) plus PEG-IFN (PI, 180 μg/week, subcutaneous) for 48 weeks (TDF/PI-48w); TDF plus PEG-IFN for 16 weeks, TDF for 32 weeks (TDF/PI-16w+TDF-32w); TDF for 120 weeks (TDF-120w) or PEG-IFN for 48 weeks (PI-48w). Logistic regression methods were used to identify models that best predicted HBsAg loss at Week 72. RESULTS Rates of HBsAg loss at Week 72 were significantly higher in the TDF/PI-48w group (6.5%) than in the TDF/PI-16w+TDF-32w (0.5%), TDF-120w (0%) and PI-48w (2.2%) groups (P = 0.09). The only baseline factor associated with response was genotype A. HBsAg decline at Week 12 or 24 of treatment was associated with HBsAg loss at Week 72 (P < 0.001). HBsAg decline >3.5 log10 IU/mL at Week 24 in the TDF/PI-48w group resulted in a positive predictive value of 85% and a negative predictive value of 99% for HBsAg loss at Week 72. CONCLUSIONS HBsAg decline at Week 24 of TDF plus PEG-IFN combination therapy may identify patients who, after completing 48 weeks of treatment, have a better chance of achieving HBsAg loss at Week 72.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | - L Lin
- Gilead Sciences, Inc., Foster City, CA, USA
| | - G Wu
- Gilead Sciences, Inc., Foster City, CA, USA
| | | | | | - L J Yee
- Gilead Sciences, Inc., Foster City, CA, USA
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Moawad GN, Abi Khalil E, Samuel D, Marfori C. Robotic Cerclage in Advanced Endometriosis. J Minim Invasive Gynecol 2016. [DOI: 10.1016/j.jmig.2016.08.561] [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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Raleigh D, Tomlin B, Del Buono B, Roddy E, Sear K, Byer L, Felton E, Banerjee A, Torkildson J, Samuel D, Horn B, Braunstein S, Haas-Kogan D, Mueller S. High-Dose Chemotherapy With Stem Cell Transplant to Delay Craniospinal Irradiation in Pediatric Embryonal Brain Tumor Patients. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.574] [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: 11/26/2022]
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Moawad G, Samuel D. Tips and Tricks: Single-Site Robotic Myomectomy. J Minim Invasive Gynecol 2016; 22:S119. [PMID: 27678621 DOI: 10.1016/j.jmig.2015.08.332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
- G Moawad
- Gynecology, Minimally Invasive Gynecological Surgery, The George Washington University, Washington, District of Columbia
| | - D Samuel
- Gynecology, Minimally Invasive Gynecological Surgery, The George Washington University, Washington, District of Columbia
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Moawad G, Samuel D. Abdominal Approaches to Tissue Containment and Extraction in MIGS. J Minim Invasive Gynecol 2016; 22:S137. [PMID: 27678746 DOI: 10.1016/j.jmig.2015.08.452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- G Moawad
- Gynecology, Minimally Invasive Surgery, The George Washington University, Washington, District of Columbia
| | - D Samuel
- Gynecology, Minimally Invasive Surgery, The George Washington University, Washington, District of Columbia
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Bechiri MY, Eliahou L, Rouzet F, Fouret PJ, Antonini T, Samuel D, Adam R, Adams D, Slama MS, Algalarrondo V. Multimodality Imaging of Cardiac Transthyretin Amyloidosis 16 Years After a Domino Liver Transplantation. Am J Transplant 2016; 16:2208-2212. [PMID: 26880259 DOI: 10.1111/ajt.13755] [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: 10/02/2015] [Revised: 01/13/2016] [Accepted: 02/05/2016] [Indexed: 01/26/2023]
Abstract
We report the case of a 62-year-old man hospitalized in May 2015 for symptomatic heart failure. His medical history included two liver transplantations. The first liver transplantation was performed in 1999 for a mixed alcoholic and hepatitis C-related cirrhosis and the patient received the liver of another patient with Val30Met transthyretin amyloidosis using the domino technique. In 2008, he complained of neuropathic pains and an iatrogenic-acquired transthyretin amyloidosis was diagnosed. On cardiac evaluation, amyloidosis was suspected. In March 2010, a second liver transplantation was performed with a deceased donor without complication. In May 2015, a first episode of symptomatic heart failure occurred and cardiac amyloidosis was investigated by a multimodality evaluation. Electrocardiogram, cardiac biomarkers, echocardiography, and cardiac MRI were in favor of the diagnosis of amyloidosis, whereas 99m Tc-dicarboxypropane diphosphonate scintigraphy was not. Endomyocardial biopsy finally confirmed the positive diagnosis of iatrogenic-acquired cardiac amyloidosis. This case is, to the best of our knowledge, the first to report biopsy-proven cardiac amyloidosis induced by domino liver transplantation and progressing heart failure in spite of retransplantation. The diagnostic modalities are discussed. This case should alert physicians to the cardiac risk in domino liver transplanted patients.
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Affiliation(s)
- M Y Bechiri
- AP-HP, Service de Cardiologie, Hôpital Béclère, Clamart, France
| | - L Eliahou
- AP-HP, Service de Cardiologie, Hôpital Béclère, Clamart, France
| | - F Rouzet
- AP-HP, Service de Médecine Nucléaire, Hôpital Bichat Claude Bernard, Paris, France.,INSERM U1148, Université Denis Diderot Paris 7, Paris, France
| | - P-J Fouret
- AP-HP, Service d'Anatomie Pathologique, Hôpital Pitié Salpêtrière, Paris, France
| | - T Antonini
- AP-HP, Centre Hépato-biliaire, Hôpital Paul Brousse, Villejuif, France.,INSERM U1193, Villejuif, France
| | - D Samuel
- AP-HP, Centre Hépato-biliaire, Hôpital Paul Brousse, Villejuif, France.,INSERM U1193, Villejuif, France.,Université Paris-Sud, Villejuif Le Kremlin-Bicêtre, France
| | - R Adam
- AP-HP, Centre Hépato-biliaire, Hôpital Paul Brousse, Villejuif, France.,INSERM U935, Villejuif, France.,Université Paris-Sud, Villejuif Le Kremlin-Bicêtre, France
| | - D Adams
- AP-HP, FILNEMUS, INSERM U1191, Service de Neurologie, Hôpital Bicêtre, le Kremlin Bicêtre, France.,Université Paris-Sud, Villejuif Le Kremlin-Bicêtre, France
| | - M S Slama
- AP-HP, Service de Cardiologie, Hôpital Béclère, Clamart, France.,Université Paris-Sud, Villejuif Le Kremlin-Bicêtre, France
| | - V Algalarrondo
- AP-HP, Service de Cardiologie, Hôpital Béclère, Clamart, France.,Université Paris-Sud, Villejuif Le Kremlin-Bicêtre, France.,INSERM U1180, Université Paris-Saclay, Chatenay Malabry, France
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21
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Schoonaert K, D'Août K, Samuel D, Talloen W, Nauwelaerts S, Kivell TL, Aerts P. Gait characteristics and spatio-temporal variables of climbing in bonobos (Pan paniscus). Am J Primatol 2016; 78:1165-1177. [DOI: 10.1002/ajp.22571] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Revised: 05/29/2016] [Accepted: 05/29/2016] [Indexed: 11/11/2022]
Affiliation(s)
- Kirsten Schoonaert
- Laboratory for Functional Morphology; Department of Biology; University of Antwerp; Wilrijk Belgium
| | - Kristiaan D'Août
- Laboratory for Functional Morphology; Department of Biology; University of Antwerp; Wilrijk Belgium
- Institute of Ageing and Chronic Disease; Faculty of Health and Life Sciences; University of Liverpool; Liverpool United Kingdom
- Centre for Research and Conservation (CRC); Antwerp Belgium
| | - Diana Samuel
- Animal Postcranial Evolution (APE) Lab; Skeletal Biology Research Centre; School of Anthropology and Conservation; University of Kent; Canterbury United Kingdom
| | - Willem Talloen
- Janssen Pharmaceutica NV of Johnson & Johnson; Turnhoutseweg; Beerse Belgium
| | - Sandra Nauwelaerts
- Laboratory for Functional Morphology; Department of Biology; University of Antwerp; Wilrijk Belgium
- Centre for Research and Conservation (CRC); Antwerp Belgium
| | - Tracy L. Kivell
- Animal Postcranial Evolution (APE) Lab; Skeletal Biology Research Centre; School of Anthropology and Conservation; University of Kent; Canterbury United Kingdom
| | - Peter Aerts
- Laboratory for Functional Morphology; Department of Biology; University of Antwerp; Wilrijk Belgium
- Laboratory for Biomechanics and Motor Control of Human Movement; Department of Movement and Sports Sciences; University of Ghent; Gent Belgium
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22
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Burin des Roziers N, Ibanez C, Samuel D, Francoz C, Idri S, François A, Mortelecque R, Bierling P, Pirenne F. Rare and transient anti-D antibody response in D(-) liver transplant recipients transfused with D(+) red blood cells. Vox Sang 2016; 111:107-10. [PMID: 26918570 DOI: 10.1111/vox.12392] [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: 11/20/2015] [Revised: 01/25/2016] [Accepted: 01/26/2016] [Indexed: 11/27/2022]
Abstract
A retrospective analysis was conducted on 20 D(-) liver transplant (LT) recipients transfused with D(+) RBCs perioperatively and screened for RBC antibodies between 2 and 6 months later. None developed anti-D detectable by the indirect antiglobulin test. Two patients produced weak anti-D that reacted only with papain-treated RBCs at 10 and 11 days without any sign of immune haemolysis. Antibodies became quickly undetectable. These data suggest an unusual pattern of alloimmunization in LT recipients with rapid, weak and transient antibody response and support the safety of transfusing D(+) RBCs in most of D(-) patients during LT surgery.
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Affiliation(s)
| | - C Ibanez
- Etablissement Français du Sang Ile de France, Villejuif, France
| | - D Samuel
- Centre hépato-biliaire, Hôpital Paul Brousse, Villejuif, France
| | - C Francoz
- Service d'hépatologie et réanimation hépato-digestive, Hôpital Beaujon, Clichy, France
| | - S Idri
- Etablissement Français du Sang Ile de France, Villejuif, France
| | - A François
- Etablissement Français du Sang Ile de France, Villejuif, France
| | - R Mortelecque
- Etablissement Français du Sang Ile de France, Villejuif, France
| | - P Bierling
- Etablissement Français du Sang Ile de France, Villejuif, France.,Inserm U955-Equipe 2: Transfusion et maladies du globule rouge, Laboratoire d'Excellence, GRex, Institut Mondor, Créteil, France
| | - F Pirenne
- Etablissement Français du Sang Ile de France, Villejuif, France.,Inserm U955-Equipe 2: Transfusion et maladies du globule rouge, Laboratoire d'Excellence, GRex, Institut Mondor, Créteil, France
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23
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Champiat S, Lambotte O, Barreau E, Belkhir R, Berdelou A, Carbonnel F, Cauquil C, Chanson P, Collins M, Durrbach A, Ederhy S, Feuillet S, François H, Lazarovici J, Le Pavec J, De Martin E, Mateus C, Michot JM, Samuel D, Soria JC, Robert C, Eggermont A, Marabelle A. Management of immune checkpoint blockade dysimmune toxicities: a collaborative position paper. Ann Oncol 2015; 27:559-74. [PMID: 26715621 DOI: 10.1093/annonc/mdv623] [Citation(s) in RCA: 600] [Impact Index Per Article: 66.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Accepted: 12/18/2015] [Indexed: 12/13/2022] Open
Abstract
Monoclonal antibodies targeted against the immune checkpoint molecules CTLA-4 and PD-1 have recently obtained approval for the treatment of metastatic melanoma and advanced/refractory non small-cell lung cancers. Therefore, their use will not be limited anymore to selected hospitals involved in clinical trials. Indeed, they will be routinely prescribed in many cancer centers across the world. Besides their efficacy profile, these immune targeted agents also generate immune-related adverse events (irAEs). This new family of dysimmune toxicities remains largely unknown to the broad oncology community. Although severe irAEs remain rare (∼10% of cases under monotherapy), they can become life-threatening if not anticipated and managed appropriately. Over the last 5 years, Gustave Roussy has accumulated a significant experience in the prescription of immune checkpoint blockade (ICB) antibodies and the management of their toxicities. Together with the collaboration of Gustave Roussy's network of organ specialists with expertise in irAEs, we propose here some practical guidelines for the oncologist to help in the clinical care of patients under ICB immunotherapy.
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Affiliation(s)
- S Champiat
- Department of Drug Development (DITEP), Gustave Roussy Inserm U981, Univ. Paris-Sud, Université Paris-Saclay, Villejuif
| | - O Lambotte
- Department of Internal Medicine and Clinical Immunology, Assistance Publique-Hôpitaux de Paris, Hôpital Universitaire Bicêtre, Le Kremlin Bicêtre Université Paris Sud 11, Le Kremlin-Bicêtre CEA, DSV/iMETI, Division of Immuno-Virology, IDMIT, Fontenay-aux-Roses INSERM, U1184, Center for Immunology of Viral Infections and Autoimmune Diseases, Le Kremlin-Bicêtre
| | - E Barreau
- Department of Ophthalmology, Hôpital Universitaire Bicêtre, Le Kremlin Bicêtre
| | - R Belkhir
- Department of Rheumatology, Hôpitaux Universitaires Paris-Sud, Hôpital Bicêtre, AP-HP, Le Kremlin Bicêtre
| | - A Berdelou
- Department of Nuclear Medicine and Endocrine Tumors, Gustave Roussy, Univ. Paris-Sud, Université Paris-Saclay, Villejuif
| | - F Carbonnel
- Gastroenterology Unit, Université Paris-Sud, Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Sud, Le Kremlin Bicêtre
| | - C Cauquil
- Division of Adult Neurology, Hôpital Universitaire Bicêtre, Le Kremlin Bicêtre
| | - P Chanson
- Faculty of Medicine, Université Paris-Saclay, Univ Paris-Sud, Paris-Sud, UMR-S1185, Le Kremlin Bicêtre Unit of Endocrinology and reproductive Health, Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris-Sud, Hôpital de Bicêtre, Le Kremlin Bicêtre Unit of Gastroenterology, Institut National de la Santé et de la Recherche Médicale U1185 (P.C.), Le Kremlin Bicêtre
| | - M Collins
- Gastroenterology Unit, Université Paris-Sud, Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Sud, Le Kremlin Bicêtre
| | - A Durrbach
- Department of Nephrology and Transplantation, Bicêtre Hospital, Paris Saclay University, INSERM 1197, Le Kremlin Bicêtre
| | - S Ederhy
- Department of Cardiology, Saint-Antoine Hospital, Assistance Publique-Hôpitaux de Paris, Pierre et Marie Curie University [UPMC], Paris-Sorbonne, Paris
| | - S Feuillet
- Department of Thoracic and cardiovascular, and transplantation cardio-pulmonary, Hôpital Marie-Lannelongue, Le Plessis-Robinson Univ. Paris-Sud, Faculté de Médecine, Université Paris-Saclay, Le Kremlin Bicêtre
| | - H François
- Department of Nephrology and Transplantation, Bicêtre Hospital, Paris Saclay University, INSERM 1197, Le Kremlin Bicêtre
| | - J Lazarovici
- Hematology Unit, Department of Medical Oncology, Gustave Roussy, Univ. Paris-Sud, Université Paris-Saclay, Villejuif
| | - J Le Pavec
- Department of Thoracic and cardiovascular, and transplantation cardio-pulmonary, Hôpital Marie-Lannelongue, Le Plessis-Robinson Univ. Paris-Sud, Faculté de Médecine, Université Paris-Saclay, Le Kremlin Bicêtre UMR_S 999, Univ. Paris-Sud; INSERM; Hôpital Marie Lannelongue, Le Plessis Robinson
| | - E De Martin
- Centre Hépato-Biliaire, AP-HP, Hôpital Universitaire Paul Brousse Inserm U1193
| | - C Mateus
- Dermatology Unit, Department of Medical Oncology, Gustave Roussy, Univ. Paris-Sud, Université Paris-Saclay, Villejuif
| | - J-M Michot
- Department of Drug Development (DITEP), Gustave Roussy
| | - D Samuel
- Centre Hépato-Biliaire, AP-HP, Hôpital Universitaire Paul Brousse Inserm U1193
| | - J-C Soria
- Department of Drug Development (DITEP), Gustave Roussy Inserm U981, Univ. Paris-Sud, Université Paris-Saclay, Villejuif
| | - C Robert
- Inserm U981, Univ. Paris-Sud, Université Paris-Saclay, Villejuif Dermatology Unit, Department of Medical Oncology, Gustave Roussy, Univ. Paris-Sud, Université Paris-Saclay, Villejuif
| | | | - A Marabelle
- Department of Drug Development (DITEP), Gustave Roussy Gustave Roussy Cancer Campus, Villejuif Inserm 1015, Univ. Paris-Sud, Université Paris-Saclay, Villejuif, France
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24
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Zeuzem S, Flisiak R, Vierling JM, Mazur W, Mazzella G, Thongsawat S, Abdurakhmanov D, Van Kính N, Calistru P, Heo J, Stanciu C, Gould M, Makara M, Hsu SJ, Buggisch P, Samuel D, Mutimer D, Nault B, Merz M, Bao W, Griffel LH, Brass C, Naoumov NV. Randomised clinical trial: alisporivir combined with peginterferon and ribavirin in treatment-naïve patients with chronic HCV genotype 1 infection (ESSENTIAL II). Aliment Pharmacol Ther 2015; 42:829-44. [PMID: 26238707 DOI: 10.1111/apt.13342] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [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] [Received: 03/06/2015] [Revised: 03/29/2015] [Accepted: 07/08/2015] [Indexed: 12/11/2022]
Abstract
BACKGROUND Alisporivir (ALV) is an oral, host-targeting agent with pangenotypic anti-hepatitis C virus (HCV) activity and a high barrier to resistance. AIM To evaluate efficacy and safety of ALV plus peginterferon-α2a and ribavirin (PR) in treatment-naïve patients with chronic HCV genotype 1 infection. METHODS Double-blind, randomised, placebo-controlled, Phase 3 study evaluating ALV 600 mg once daily [response-guided therapy (RGT) for 24 or 48 weeks or 48 weeks fixed duration] or ALV 400 mg twice daily RGT with PR, compared to PR alone. Following a Food and Drug Administration partial clinical hold, ALV/placebo was discontinued and patients completed treatment with PR only. At that time, 87% of patients had received ≥12 weeks and 20% had received ≥24 weeks of ALV/PR triple therapy. RESULTS A total of 1081 patients were randomised (12% cirrhosis, 55% CT/TT IL28B). Addition of ALV to PR improved virological response in a dose-dependent fashion. Overall, sustained virological response (SVR12; primary endpoint) was 69% in all ALV groups vs. 53% in PR control. Highest SVR12 (90%) was achieved in patients treated with ALV 400 mg twice daily and PR for >24 weeks. Seven cases of pancreatitis were reported, with similar frequency between ALV/PR and PR control groups (0.6% vs. 0.8% respectively). Adverse events seen more frequently with ALV/PR than with PR alone were anaemia, thrombocytopenia, hyperbilirubinaemia and hypertension. CONCLUSIONS Alisporivir, especially the 400 mg twice daily regimen, increased efficacy of PR therapy in treatment-naïve patients with HCV genotype 1 infection. The mechanism of action and pangenotypic activity suggest that alisporivir could be useful in interferon-free combination regimens.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - B Nault
- Novartis Pharma AG, Basel, Switzerland
| | - M Merz
- Novartis Institutes for BioMedical Research, Basel, Switzerland
| | - W Bao
- Novartis Pharmaceuticals, East Hanover, NJ, USA
| | - L H Griffel
- Novartis Pharmaceuticals, East Hanover, NJ, USA
| | - C Brass
- Novartis Pharmaceuticals, East Hanover, NJ, USA
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25
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Teicher E, Boufassa F, Vittecoq D, Antonini TM, Tateo MG, Coilly A, Roque-Afonso AM, Kassis-Chikhani N, Lambotte O, Ichai P, Samuel D, Duclos-Vallee JC. Infectious complications after liver transplantation in human immunodeficiency virus-infected recipients. Transpl Infect Dis 2015; 17:662-70. [PMID: 26192379 DOI: 10.1111/tid.12422] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Revised: 06/15/2015] [Accepted: 07/05/2015] [Indexed: 12/23/2022]
Abstract
BACKGROUND Few studies have investigated infections in human immunodeficiency virus (HIV)-infected liver transplant patients. The aim of this study was to describe the prevalence, time of onset, mortality of infectious complications, other than hepatitis C virus (HCV), and to identify risk factors for their development in a large single-center cohort of HIV-infected liver transplant patients. METHODS We studied 109 consecutive HIV-infected patients who underwent liver transplantation (LT) between 1999 and 2010 and followed until December 2012. RESULTS The median age was 44 years (interquartile range [IQR] 41-49), 82.6% were male, and the median follow-up was 45.7 months (IQR 14-65). The major indications for LT were HCV cirrhosis (61%) and hepatocellular carcinoma (19%). Forty patients (37%) developed at least 1 infection during the first year after LT. Twenty-eight (26%) patients had an episode of bacteremia. Five (4.6%) patients developed a cytomegalovirus infection. Fungal infections occurred in 5 (4.5%) patients. Four (3.6%) patients developed an HIV-related opportunistic infection. A total of 43 (39.4%) patients died during follow-up. Mortality related to infection occurred in 9 (7%) cases, and 20 (42.5%) patients died because of HCV recurrence. No patients died from opportunistic infections. Model for end-stage liver disease (MELD) score >17 was associated with a 2-fold higher risk (hazard ratio 1.96; 95% confidence interval 1.01-3.80) of developing infectious complications. CONCLUSIONS Infections are not a major cause of mortality after LT in HIV patients and opportunistic infections of acquired immunodeficiency syndrome are infrequent. A MELD score >17 increased the risk of developing post-LT infectious complications. Recurrence of HCV infection remains a major cause of mortality.
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Affiliation(s)
- E Teicher
- Service de Médecine Interne Immunologie Clinique et Maladies Infectieuses, AP-HP Hôpital Bicêtre, Le Kremlin-Bicêtre, France.,Centre Hépato-Biliaire, AP-HP Hôpital Paul-Brousse, Villejuif, France.,DHU Hepatinov, Villejuif, France
| | - F Boufassa
- Centre for research in Epidemiology and Population Health - U1018, Inserm, Le Kremlin-Bicêtre, France.,Univ Paris-Sud, Le Kremlin-Bicêtre, France
| | - D Vittecoq
- Service de Médecine Interne Immunologie Clinique et Maladies Infectieuses, AP-HP Hôpital Bicêtre, Le Kremlin-Bicêtre, France.,Univ Paris-Sud, Le Kremlin-Bicêtre, France
| | - T M Antonini
- Centre Hépato-Biliaire, AP-HP Hôpital Paul-Brousse, Villejuif, France.,DHU Hepatinov, Villejuif, France.,Univ Paris-Sud, Le Kremlin-Bicêtre, France.,Unité 1193, Inserm, Villejuif, France
| | - M-G Tateo
- Centre Hépato-Biliaire, AP-HP Hôpital Paul-Brousse, Villejuif, France
| | - A Coilly
- Centre Hépato-Biliaire, AP-HP Hôpital Paul-Brousse, Villejuif, France.,DHU Hepatinov, Villejuif, France.,Univ Paris-Sud, Le Kremlin-Bicêtre, France.,Unité 1193, Inserm, Villejuif, France
| | - A-M Roque-Afonso
- Univ Paris-Sud, Le Kremlin-Bicêtre, France.,Unité 1193, Inserm, Villejuif, France.,Département de Microbiologie et Virologie, AP-HP Hôpital Paul-Brousse, Villejuif, France
| | - N Kassis-Chikhani
- Département de Microbiologie et Virologie, AP-HP Hôpital Paul-Brousse, Villejuif, France
| | - O Lambotte
- Univ Paris-Sud, Le Kremlin-Bicêtre, France
| | - P Ichai
- Centre Hépato-Biliaire, AP-HP Hôpital Paul-Brousse, Villejuif, France.,DHU Hepatinov, Villejuif, France.,Univ Paris-Sud, Le Kremlin-Bicêtre, France.,Unité 1193, Inserm, Villejuif, France
| | - D Samuel
- Centre Hépato-Biliaire, AP-HP Hôpital Paul-Brousse, Villejuif, France.,DHU Hepatinov, Villejuif, France.,Univ Paris-Sud, Le Kremlin-Bicêtre, France.,Unité 1193, Inserm, Villejuif, France
| | - J-C Duclos-Vallee
- Centre Hépato-Biliaire, AP-HP Hôpital Paul-Brousse, Villejuif, France.,DHU Hepatinov, Villejuif, France.,Univ Paris-Sud, Le Kremlin-Bicêtre, France.,Unité 1193, Inserm, Villejuif, France
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26
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Burin des Roziers N, Ibanez C, Duvoux C, Samuel D, Mortelecque R, Idri S, Bierling P, François A, Noizat-Pirenne F. Évaluation du risque d’allo-immunisation anti-D chez les transplantés hépatiques D négatif recevant des CGR D positif. Transfus Clin Biol 2015. [DOI: 10.1016/j.tracli.2015.06.093] [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: 10/22/2022]
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27
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Horner P, Wills GS, Righarts AA, Vieira S, Samuel D, Winston A, Muir D, Dickson NP, McClure MO. O15.1 Sensitive detection of chlamydia trachomatispgp3 antibody demonstrates antibody persistence and correlates with self-reported infection and behavioural risks in a blinded cohort study. Br J Vener Dis 2015. [DOI: 10.1136/sextrans-2015-052270.159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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28
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Gustot T, Fernandez J, Garcia E, Morando F, Caraceni P, Alessandria C, Laleman W, Trebicka J, Elkrief L, Hopf C, Solís-Munoz P, Saliba F, Zeuzem S, Albillos A, Benten D, Montero-Alvarez JL, Chivas MT, Concepción M, Córdoba J, McCormick A, Stauber R, Vogel W, de Gottardi A, Welzel TM, Domenicali M, Risso A, Wendon J, Deulofeu C, Angeli P, Durand F, Pavesi M, Gerbes A, Jalan R, Moreau R, Ginés P, Bernardi M, Arroyo V, Bañares R, Bocci M, Catalina MV, Chin JL, Coenraad MJ, Coilly A, Dorn L, Gatta A, Gerber L, Grøenbæk H, Graupera I, Guevara M, Hausen A, Karlsen S, Lohse AW, Maggioli C, Markwardt D, Martinez J, Marzano A, de la Mata García M, Mesonero F, Mookerjee RP, Moreno C, Morrell B, Mortensen C, Nevens F, Peck‐Radosavljevic M, Rizzetto M, Romano A, Samuel D, Sauerbruch T, Simon‐Talero M, Solà E, Soriano G, Sperl J, Spindelboeck W, Steib C, Valla D, Verbeke L, Van Vlierberghe H, Wege H, Willars C, Baenas MY, Zaccherini G. Clinical Course of acute-on-chronic liver failure syndrome and effects on prognosis. Hepatology 2015; 62:243-52. [PMID: 25877702 DOI: 10.1002/hep.27849] [Citation(s) in RCA: 407] [Impact Index Per Article: 45.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2014] [Accepted: 04/07/2015] [Indexed: 12/20/2022]
Abstract
UNLABELLED Acute-on-chronic liver failure (ACLF) is characterized by acute decompensation (AD) of cirrhosis, organ failure(s), and high 28-day mortality. We investigated whether assessments of patients at specific time points predicted their need for liver transplantation (LT) or the potential futility of their care. We assessed clinical courses of 388 patients who had ACLF at enrollment, from February through September 2011, or during early (28-day) follow-up of the prospective multicenter European Chronic Liver Failure (CLIF) ACLF in Cirrhosis study. We assessed ACLF grades at different time points to define disease resolution, improvement, worsening, or steady or fluctuating course. ACLF resolved or improved in 49.2%, had a steady or fluctuating course in 30.4%, and worsened in 20.4%. The 28-day transplant-free mortality was low-to-moderate (6%-18%) in patients with nonsevere early course (final no ACLF or ACLF-1) and high-to-very high (42%-92%) in those with severe early course (final ACLF-2 or -3) independently of initial grades. Independent predictors of course severity were CLIF Consortium ACLF score (CLIF-C ACLFs) and presence of liver failure (total bilirubin ≥12 mg/dL) at ACLF diagnosis. Eighty-one percent had their final ACLF grade at 1 week, resulting in accurate prediction of short- (28-day) and mid-term (90-day) mortality by ACLF grade at 3-7 days. Among patients that underwent early LT, 75% survived for at least 1 year. Among patients with ≥4 organ failures, or CLIF-C ACLFs >64 at days 3-7 days, and did not undergo LT, mortality was 100% by 28 days. CONCLUSIONS Assessment of ACLF patients at 3-7 days of the syndrome provides a tool to define the emergency of LT and a rational basis for intensive care discontinuation owing to futility.
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Affiliation(s)
- Thierry Gustot
- Erasme Hospital, Université Libre de Bruxelles, Brussels, Belgium
| | | | - Elisabet Garcia
- Data Management Center of the EASL-CLIF Consortium, CIBEReHD, Barcelona, Spain
| | | | | | | | - Wim Laleman
- University Hospital Gasthuisberg, Leuven, Belgium
| | | | | | - Corinna Hopf
- University of Munich, Klinikum der LMU, Munich, Germany
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Carme Deulofeu
- Data Management Center of the EASL-CLIF Consortium, CIBEReHD, Barcelona, Spain
| | | | | | - Marco Pavesi
- Data Management Center of the EASL-CLIF Consortium, CIBEReHD, Barcelona, Spain
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Adam R, Karam V, Delvart V, Trunečka P, Samuel D, Bechstein WO, Němec P, Tisone G, Klempnauer J, Rossi M, Rummo OO, Dokmak S, Krawczyk M, Pratschke J, Kollmar O, Boudjema K, Colledan M, Ericzon BG, Mantion G, Baccarani U, Neuhaus P, Paul A, Bachellier P, Zamboni F, Hanvesakul R, Muiesan P. Improved survival in liver transplant recipients receiving prolonged-release tacrolimus in the European Liver Transplant Registry. Am J Transplant 2015; 15:1267-82. [PMID: 25703527 DOI: 10.1111/ajt.13171] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2014] [Revised: 11/28/2014] [Accepted: 12/09/2014] [Indexed: 01/25/2023]
Abstract
This study was a retrospective analysis of the European Liver Transplant Registry (ELTR) performed to compare long-term outcomes with prolonged-release tacrolimus versus tacrolimus BD in liver transplantation (January 2008-December 2012). Clinical efficacy measures included univariate and multivariate analyses of risk factors influencing graft and patient survival at 3 years posttransplant. Efficacy measures were repeated using propensity score-matching for baseline demographics. Patients with <1 month of follow-up were excluded from the analyses. In total, 4367 patients (prolonged-release tacrolimus: n = 528; BD: n = 3839) from 21 European centers were included. Tacrolimus BD treatment was significantly associated with inferior graft (risk ratio: 1.81; p = 0.001) and patient survival (risk ratio: 1.72; p = 0.004) in multivariate analyses. Similar analyses performed on the propensity score-matched patients confirmed the significant survival advantages observed in the prolonged-release tacrolimus- versus tacrolimus BD-treated group. This large retrospective analysis from the ELTR identified significant improvements in long-term graft and patient survival in patients treated with prolonged-release tacrolimus versus tacrolimus BD in primary liver transplant recipients over 3 years of treatment. However, as with any retrospective registry evaluation, there are a number of limitations that should be considered when interpreting these data.
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Affiliation(s)
- R Adam
- Hepato-Biliary Center, AP-HP Paul Brousse Hospital, University of Paris-Sud, Inserm U 776, Villejuif, France
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Wyplosz B, Derradji O, Hong E, François H, Durrbach A, Duclos-Vallée JC, Samuel D, Escaut L, Launay O, Vittecoq D, Taha M. Low immunogenicity of quadrivalent meningococcal vaccines in solid organ transplant recipients. Transpl Infect Dis 2015; 17:322-7. [DOI: 10.1111/tid.12359] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2014] [Revised: 05/27/2014] [Accepted: 01/18/2015] [Indexed: 11/29/2022]
Affiliation(s)
- B. Wyplosz
- Assistance Publique-Hôpitaux de Paris; CHU Bicêtre; Centre de Vaccinations Internationales; Service de Maladies Infectieuses et Tropicales; Le Kremlin-Bicêtre France
| | - O. Derradji
- Assistance Publique-Hôpitaux de Paris; CHU Bicêtre; Centre de Vaccinations Internationales; Service de Maladies Infectieuses et Tropicales; Le Kremlin-Bicêtre France
| | - E. Hong
- Institut Pasteur; Invasive Bacterial Infections Unit; Paris France
| | - H. François
- Assistance Publique-Hôpitaux de Paris; CHU Bicêtre; Néphrologie; Le Kremlin-Bicêtre France
- Faculté de Médecine; Université Paris Sud; Paris France
| | - A. Durrbach
- Assistance Publique-Hôpitaux de Paris; CHU Bicêtre; Néphrologie; Le Kremlin-Bicêtre France
- Faculté de Médecine; Université Paris Sud; Paris France
| | - J.-C. Duclos-Vallée
- Faculté de Médecine; Université Paris Sud; Paris France
- Assistance Publique-Hôpitaux de Paris; Hôpital Universitaire Paul Brousse; Centre Hépatobiliaire; Villejuif France
| | - D. Samuel
- Faculté de Médecine; Université Paris Sud; Paris France
- Assistance Publique-Hôpitaux de Paris; Hôpital Universitaire Paul Brousse; Centre Hépatobiliaire; Villejuif France
| | - L. Escaut
- Assistance Publique-Hôpitaux de Paris; CHU Bicêtre; Centre de Vaccinations Internationales; Service de Maladies Infectieuses et Tropicales; Le Kremlin-Bicêtre France
| | - O. Launay
- INSERM, CIC BT505, and AP-HP; Paris Descartes University; Cochin Hospital; Paris France
| | - D. Vittecoq
- Assistance Publique-Hôpitaux de Paris; CHU Bicêtre; Centre de Vaccinations Internationales; Service de Maladies Infectieuses et Tropicales; Le Kremlin-Bicêtre France
- Assistance Publique-Hôpitaux de Paris; CHU Bicêtre; Néphrologie; Le Kremlin-Bicêtre France
| | - M.K. Taha
- Institut Pasteur; Invasive Bacterial Infections Unit; Paris France
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Saliba F, Samuel D. Artificial liver support: a real step forward. Minerva Med 2015; 106:35-43. [PMID: 25367058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Since the early 1960s, several authors reported on the use of some experimental artificial liver devices in order to support patients with either acute liver failure (ALF) or end-stage chronic liver disease. In the 1980s, liver transplantation became an established real treatment replacing the whole liver with a major survival benefit. In the 1990s, the concept of albumin dialysis appeared as a new revolution in the concept of dialysis with the great capacity of removal of toxins, drugs and molecules strongly bound to albumin. Currently, three artificial liver support devices are available: The MARS®, the Prometheus® and the SPAD®. The most widely studied and used system is the MARS® that uses albumin dialysis to replace the detoxification function of the liver. MARS has shown in several uncontrolled studies and few randomized studies an improvement in the patient condition in terms of clinical symptoms (hepatic encephalopathy, pruritus, jaundice) and in liver and kidney biological parameters bringing these patients safely to liver transplantation. MARS® has shown for some patients with ALF (mainly paracetamol intoxication) an improvement of spontaneous or transplant free survival. The use of MARS in acute on chronic liver failure (ACLF) require further studies based on strict definition of the syndrome. The use of albumin dialysis technique, require the performance of multiple sessions of treatment or even (in situations of ALF) a continuous treatment in order to improve spontaneous recovery or bridge these patients to liver transplantation. The performance of these systems would need further improvement. Large randomized trials are still needed in both patients with ALF and ACLF to establish the indications, the timing and the real place of liver support therapies. Meanwhile, early use of these devices in patients with ALF and ACLF could be considered as an additional tool among others in the management of these patients in specialized liver units.
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Affiliation(s)
- F Saliba
- AP‑HP‑ Hôpital Paul Brousse Centre Hépato‑Biliaire, Villejuif, France -
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Zhuang H, Bowker B, Samuel D. Effect of postmortem aging on marination performance of broiler breast pectoralis major categorized by color lightness. Poult Sci 2014; 93:3123-9. [PMID: 25260524 DOI: 10.3382/ps.2013-03650] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The objective was to evaluate the effect of postmortem aging on marination performance of early-deboned chicken breast fillets (pectoralis major) with different color lightness. Effects of marination on muscle shear force were also determined. Early-deboned (2 h postmortem) broiler butterfly fillets were visually selected based on their color lightness (pale, normal, and dark) from a commercial plant. The individual butterfly fillets were separated into left and right fillets. One of them was used for 6-h marination treatment and the other for 24-h marination treatment. Samples were marinated in a vacuum tumbler (-0.6 atm, 16 rpm, 20 min) with 20% wt/wt marinade yielding 0.75% NaCl and 0.45% phosphate in the final product. The effect of aging on salt-induced water gain by breast muscle was also measured using the swelling/centrifuging method. Marinade uptake, marinade retention, raw product yield, and cooked product yield were determined after tumbling, following storage for 24 and 48 h after marination and after cooking. Salt-induced water gain was greater (P < 0.05) in nonmarinated fillets at 24 h postmortem compared with 6 h postmortem. Compared with unmarinated fillets, marination enhanced finished product yield significantly (P < 0.05) regardless of postmortem aging and color lightness. Marinade retention and product yield were different (P < 0.05) in fillets categorized by L* (lightness) values. There were no differences (P > 0.05) between 2 postmortem aging times for marinade uptake, overall product yield, cooking loss, final cooked product yield, or meat shear force regardless of initial fillet L* values. However, marinade retention of 6-h samples was significantly better than 24-h samples (P < 0.05). These results demonstrate that with a targeted 15% marinade uptake, postmortem aging of 2-h deboned fillets before marination does not affect marinade uptake and product yield, but significantly affects marinade retention by boneless skinless chicken breast.
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Affiliation(s)
- H Zhuang
- USDA, Agricultural Research Service, Russell Research Center, 950 College Station Road, Athens, GA 30604-5677
| | - B Bowker
- USDA, Agricultural Research Service, Russell Research Center, 950 College Station Road, Athens, GA 30604-5677
| | - D Samuel
- USDA, Agricultural Research Service, Russell Research Center, 950 College Station Road, Athens, GA 30604-5677
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Bernardeschi C, Valeyrie-Allanore L, Ortonne N, Gressier L, Wallet-Faber N, Bernard PH, Hezode C, Duclos-Vallée JC, Samuel D, Mallet V, Pol S, Milpied B, Dupin N. Dermatological side-effects in hepatitis C infected patients under a triple regimen associating pegylated interferon, ribavirin and telaprevir. J Eur Acad Dermatol Venereol 2014; 30:143-6. [DOI: 10.1111/jdv.12635] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- C. Bernardeschi
- Department of Dermatology; Assistance-Publique-Hôpitaux de Paris; Groupe Hospitalier Cochin; Paris France
- Université Paris Descartes; Paris France
| | - L. Valeyrie-Allanore
- Department of Dermatology; Referral center for toxic bullous diseases; Assistance-Publique-Hopitaux de Paris; Hôpital Henri Mondor; Créteil France
- Université Paris Est; Créteil France
| | - N. Ortonne
- Université Paris Est; Créteil France
- Department of Pathology; Assistance-Publique-Hôpitaux de Paris; Hôpital Henri Mondor; Créteil France
| | - L. Gressier
- Department of Dermatology; Assistance-Publique-Hôpitaux de Paris; Groupe Hospitalier Cochin; Paris France
- Université Paris Descartes; Paris France
| | - N. Wallet-Faber
- Department of Dermatology; Assistance-Publique-Hôpitaux de Paris; Groupe Hospitalier Cochin; Paris France
- Université Paris Descartes; Paris France
| | - P.-H. Bernard
- Department of Hepatology; Hôpital Saint-André; Bordeaux France
| | - C. Hezode
- Université Paris Est; Créteil France
- Department of Hepatology; Assistance-Publique-Hôpitaux de Paris; Hôpital Henri Mondor; Creteil France
| | - J.-C. Duclos-Vallée
- Department of Hepatology; Assistance-Publique-Hôpitaux de Paris; Hôpital Paul Brousse; France
| | - D. Samuel
- Department of Hepatology; Assistance-Publique-Hôpitaux de Paris; Hôpital Paul Brousse; France
| | - V. Mallet
- Université Paris Descartes; Paris France
- Department of Hepatology; Assistance-Publique-Hôpitaux de Paris; Groupe Hospitalier Cochin; Paris France
| | - S. Pol
- Université Paris Descartes; Paris France
- Department of Hepatology; Assistance-Publique-Hôpitaux de Paris; Groupe Hospitalier Cochin; Paris France
| | - B. Milpied
- Department of Dermatology; Hôpital Saint-André Centre Hospitalier Universitaire de Bordeaux; Bordeaux France
| | - N. Dupin
- Department of Dermatology; Assistance-Publique-Hôpitaux de Paris; Groupe Hospitalier Cochin; Paris France
- Université Paris Descartes; Paris France
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34
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Samuel D, Testa M, Schneider R, Park Y, Janssens G, Orban de Xivry J, Moteabbed M, Prieels D, Lu H, Bentefour E. SU-E-T-435: Development and Commissioning of a Complete System for In-Vivo Dosimetry and Range Verification in Proton Therapy. Med Phys 2014. [DOI: 10.1118/1.4888768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Gardiner A, Samuel D. Evaluation of the Edmonton Functional Assessment Tool (EFAT2) within palliative care: a pilot study. Aging Clin Exp Res 2014; 26:293-8. [PMID: 24318746 DOI: 10.1007/s40520-013-0174-y] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2013] [Accepted: 11/20/2013] [Indexed: 11/27/2022]
Abstract
BACKGROUND There is increasing need for rehabilitation in both cancer and palliative care. However, there are few validated outcome measures that are suitable for measuring functional performance in this population. The present study evaluated the validity, sensitivity and reliability of the Edmonton Functional Assessment Tool (EFAT2) within a UK palliative care setting. METHODS Eleven participants aged 65 years and over (mean age 76.5 ± 6.7 years) receiving rehabilitation in a palliative care inpatient setting were studied. Concurrent validity was assessed by comparing EFAT2 with the Barthel Index. Inter-rater reliability of EFAT2 was examined using a sample of four participants recruited from a cancer care ward. RESULTS A significant negative correlation was observed between the Barthel Index and EFAT2 (r = -0.765, p = 0.01) and both measures were found to be sensitive as determined by Cohen's effect size (EFAT2 = 0.60, Barthel Index = 0.72). High inter-rater reliability was noted for EFAT2 (ICC3, 1 = 0.85) and the agreement between scores was confirmed by Bland-Altman analysis. CONCLUSIONS EFAT2 showed concurrent validity with the Barthel Index when used to assess the effects of rehabilitation on participants with advanced cancer. The tool was sensitive to change and was found to be reliable when used by different raters. The findings indicate that EFAT2 might be an appropriate outcome measure to use within the palliative care setting. However, the feasibility of using EFAT2 needs to be explored and larger studies are required to confirm its reliability.
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Affiliation(s)
- A Gardiner
- Faculty of Health Sciences, University of Southampton, Building 45, Burgess Road, Highfield, Southampton, SO17 1BJ, UK
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Abstract
This study determined the effects of extraction buffer pH and postmortem aging on the extraction of salt-soluble and water-soluble proteins from broiler pectoralis muscle. Deboned broiler breast fillets were collected at 4 h postmortem, packaged, and then stored at 4°C until 1, 5, or 8 d postmortem. After the designated aging period, salt-soluble and water-soluble protein extractions were performed using buffers at 7 different pH levels (pH 5.4, 6.4, 6.9, 7.2, 7.5, 8.0, 9.0). Protein concentrations of the extracts were measured and SDS-PAGE analysis was performed. Salt-soluble protein concentration increased (P < 0.0001) as buffer pH increased from pH 5.4 to 6.9 and then remained unchanged from pH 6.9 to 9.0. Water-soluble protein concentration increased (P < 0.0001) as buffer pH increased from pH 5.4 to 7.2 and then remained unchanged from pH 7.2 to 9.0. There was not a significant extraction buffer pH by aging treatment interaction for the total protein concentration of either the salt-soluble or water-soluble protein extracts. The protein concentrations of salt-soluble extracts were similar at both 1 and 8 d postmortem but lower (P < 0.0001) at 5 d postmortem. The protein concentrations of water-soluble extracts were similar at both 1 and 5 d postmortem, but higher (P < 0.0001) at 8 d. Both extraction buffer pH and postmortem aging influenced the SDS-PAGE protein profiles of salt-soluble and water-soluble protein extracts from breast muscles. Data demonstrate that postmortem aging and extraction buffer pH influence both the total amount and the composition of the myofibrillar and sarcoplasmic proteins that can be extracted from broiler breast fillets.
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Affiliation(s)
- M Eady
- USDA, Agricultural Research Service, Richard B. Russell Research Center, Athens, GA 30605
| | - D Samuel
- USDA, Agricultural Research Service, Richard B. Russell Research Center, Athens, GA 30605
| | - B Bowker
- USDA, Agricultural Research Service, Richard B. Russell Research Center, Athens, GA 30605
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Wang Z, Ji A, Endlein T, Samuel D, Yao N, Wang Z, Dai Z. The role of fore- and hindlimbs during jumping in the Dybowski's frog (Rana dybowskii). ACTA ACUST UNITED AC 2014; 321:324-33. [DOI: 10.1002/jez.1865] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2013] [Revised: 02/16/2014] [Accepted: 03/21/2014] [Indexed: 10/25/2022]
Affiliation(s)
- Zhongyuan Wang
- Institute of Bio-inspired Structure and Surface Engineering; Nanjing University of Aeronautics and Astronautics; Nanjing PR China
- College of Mechanical and Electrical Engineering; Nanjing University of Aeronautics and Astronautics; Nanjing PR China
| | - Aihong Ji
- Institute of Bio-inspired Structure and Surface Engineering; Nanjing University of Aeronautics and Astronautics; Nanjing PR China
| | - Thomas Endlein
- The Centre for Cell Engineering; University of Glasgow; Glasgow Scotland United Kingdom
| | - Diana Samuel
- The Centre for Cell Engineering; University of Glasgow; Glasgow Scotland United Kingdom
| | - Ning Yao
- Institute of Bio-inspired Structure and Surface Engineering; Nanjing University of Aeronautics and Astronautics; Nanjing PR China
- College of Mechanical and Electrical Engineering; Nanjing University of Aeronautics and Astronautics; Nanjing PR China
| | - Zhouyi Wang
- Institute of Bio-inspired Structure and Surface Engineering; Nanjing University of Aeronautics and Astronautics; Nanjing PR China
- College of Mechanical and Electrical Engineering; Nanjing University of Aeronautics and Astronautics; Nanjing PR China
| | - Zhendong Dai
- Institute of Bio-inspired Structure and Surface Engineering; Nanjing University of Aeronautics and Astronautics; Nanjing PR China
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Lippert E, Samuel D, Fischer E. IR- und17O-NMR-Spektren und Struktur einiger isomerero-Arylazonaphthole. Nachweis einer Karbonylvalenzschwingung bei 1570 cm−1mittels18O-Substitution. ACTA ACUST UNITED AC 2014. [DOI: 10.1002/bbpc.19650690211] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Abstract
Suicide is both a public and mental health problem, and is a leading cause of deaths, especially among adolescents. Two factors that contribute to the decision of adolescents to commit suicide are having a primary mood disorder and/or substance use. In the Indian culture, the family unit has both a positive and negative impact on suicide. The family serves as a protective factor that provides a strong support for the individual, but alternately creates an inseparable individual when seeking mental health care, which often complicates the situation. Due to the stigma, Indians typically perceive having a mental illness as shameful. Religion is integral to the Indian culture so much so that individuals often use herbal remedies, seek help from religious leaders, and attend religious establishments prior to obtaining a mental health evaluation in those that are subsequently deemed as mentally ill. Despite the fact that suicides are underreported and misdiagnosed in India, it is known that the highest rates are among those <30 years old. The methods most commonly used to commit suicide in India include the ingestion of poison (often pesticides), hanging, burning, and drowning. When immigrating, Indians tend to switch the methods they use to commit suicide from ingestion of poison to hanging, which may reflect a lack of available poisonous substances or the influence of the host culture. Considering the high suicide rates in adolescents, the importance of providing psychoeducation, restricting access to lethal means, and promoting social integration in immigrants are various ways by which suicides in Indian adolescents can be avoided.
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Zhuang⁎ H, Bowker B, Samuel D. Effect of postmortem aging time on tumbling marination performance of broiler breast fillets. Meat Sci 2014. [DOI: 10.1016/j.meatsci.2013.07.078] [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: 10/26/2022]
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Plant R, Walter H, Samuel D, Fennell D, Ahmed S. 41 Accrual to lung cancer clinical trials – a single centre experience. Lung Cancer 2014. [DOI: 10.1016/s0169-5002(14)70042-x] [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: 11/25/2022]
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Antonini TM, Lozeron P, Lacroix C, Mincheva Z, Durrbach A, Slama M, Vibert E, Samuel D, Adams D. Reversibility of acquired amyloid polyneuropathy after liver retransplantation. Am J Transplant 2013; 13:2734-8. [PMID: 23915219 DOI: 10.1111/ajt.12378] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2013] [Revised: 05/16/2013] [Accepted: 06/02/2013] [Indexed: 01/25/2023]
Abstract
Domino liver transplantation (DLT) has become an accepted procedure designed to address problems with organ limited supply. However, cases of acquired amyloid neuropathy are increasingly being recognized following this procedure. Until now, only one patient had undergone liver retransplantation and follow-up findings were not reported. We describe the case of a 72-year-old patient with partial recovery from acquired amyloid neuropathy following retransplantation with a deceased donor 7 years after DLT performed for end-stage liver disease. His clinical and paraclinical improvement is described, and the impact of this case on the indication for a domino procedure and the challenges linked to retransplantation are discussed.
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Affiliation(s)
- T M Antonini
- AP-HP, Hôpital Paul Brousse, Centre Hépato-Biliaire, Villejuif, France; Univ Paris-Sud, UMR-S 785, Villejuif, France; Inserm, Unité 785, Villejuif, France; French National Reference Centre for FAP (NNERF), Le Kremlin Bicêtre, F-94275, France
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Wyplosz B, Burdet C, François H, Durrbach A, Duclos-Vallée JC, Mamzer-Bruneel MF, Poujol P, Launay O, Samuel D, Vittecoq D, Consigny PH. Persistence of yellow fever vaccine-induced antibodies after solid organ transplantation. Am J Transplant 2013; 13:2458-61. [PMID: 23834702 DOI: 10.1111/ajt.12338] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [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: 03/20/2013] [Revised: 05/06/2013] [Accepted: 05/13/2013] [Indexed: 01/25/2023]
Abstract
Immunization using live attenuated vaccines represents a contra-indication after solid organ transplantation (SOT): consequently, transplant candidates planning to travel in countries where yellow fever is endemic should be vaccinated prior to transplantation. The persistence of yellow fever vaccine-induced antibodies after transplantation has not been studied yet. We measured yellow-fever neutralizing antibodies in 53 SOT recipients vaccinated prior to transplantation (including 29 kidney recipients and 18 liver recipients). All but one (98%) had protective titers of antibodies after a median duration of 3 years (min.: 0.8, max.: 21) after transplantation. The median antibody level was 40 U/L (interquartile range: 40-80). For the 46 patients with a known or estimated date of vaccination, yellow-fever antibodies were still detectable after a median time of 13 years (range: 2-32 years) post-immunization. Our data suggest there is long-term persistence of antibodies to yellow fever in SOT recipients who have been vaccinated prior to transplantation.
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Affiliation(s)
- B Wyplosz
- Assistance publique-hôpitaux de Paris, CHU Bicêtre, Service de maladies infectieuses et tropicales, Centre de vaccinations internationales, Paris, Le Kremlin-Bicêtre, France
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Wills G, Samuel D, Warrener L, Horner P, McClure M. P3.018 Development of a C. Trachomatis-Specific Competitive Pgp3 ELISA. Br J Vener Dis 2013. [DOI: 10.1136/sextrans-2013-051184.0478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Samuel D, Testa M, Lee J, Cascio E, de Xivry JO, Gottschalk B, Bentefour E, Lu H. TH-C-144-09: Workflow of the in Vivo Range Verification in Proton Therapy. Med Phys 2013. [DOI: 10.1118/1.4815803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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47
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Endlein T, Ji A, Samuel D, Yao N, Wang Z, Barnes WJP, Federle W, Kappl M, Dai Z. Sticking like sticky tape: tree frogs use friction forces to enhance attachment on overhanging surfaces. J R Soc Interface 2013; 10:20120838. [PMID: 23325755 DOI: 10.1098/rsif.2012.0838] [Citation(s) in RCA: 70] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
To live and clamber about in an arboreal habitat, tree frogs have evolved adhesive pads on their toes. In addition, they often have long and slender legs to facilitate not only long jumps, but also to bridge gaps between leaves when climbing. Both adhesive pads and long limbs are used in conjunction, as we will show in this study. Previous research has shown that tree frogs change from a crouched posture (where the limbs are close to the body) to a sprawled posture with extended limbs when clinging on to steeper inclines such as vertical or overhanging slopes. We investigated this change in posture in White's tree frogs (Litoria caerulea) by challenging the frogs to cling onto a tiltable platform. The platform consisted of an array of 24 three-dimensional force transducers, which allowed us to measure the ground reaction forces of the frogs during a tilt. Starting from a crouched resting position, the normal forces on the forelimbs changed sign and became increasingly negative with increasing slope angle of the platform. At about 106° ± 12°, tilt of the platform the frogs reacted by extending one or two of their limbs outwards. At a steeper angle (131° ± 11°), the frogs spread out all their limbs sideways, with the hindlimbs stretched out to their maximum reach. Although the extension was strongest in the lateral direction, limbs were significantly extended in the fore-aft direction as well. With the extension of the limbs, the lateral forces increased relative to the normal forces. The large contribution of the in-plane forces helped to keep the angle between the force vector and the platform small. The Kendall theory for the peeling of adhesive tape predicts that smaller peel angles lead to higher attachment forces. We compare our data with the predictions of the Kendall model and discuss possible implications of the sliding of the pads on the surface. The forces were indeed much larger for smaller angles and thus can be explained by peeling theory.
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Affiliation(s)
- Thomas Endlein
- Centre for Cell Engineering, University of Glasgow, Joseph Black Building, University Avenue, Glasgow G12 8QQ, UK.
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Lebbe C, Porcher R, Marcelin AG, Agbalika F, Dussaix E, Samuel D, Varnous S, Euvrard S, Bigorie A, Creusvaux H, Legendre C, Frances C. Human herpesvirus 8 (HHV8) transmission and related morbidity in organ recipients. Am J Transplant 2013; 13:207-13. [PMID: 23057808 DOI: 10.1111/j.1600-6143.2012.04290.x] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2011] [Revised: 08/13/2012] [Accepted: 08/14/2012] [Indexed: 01/25/2023]
Abstract
The aims of the study were to assess the risk of HHV8 transmission resulting from organ transplantation, and related morbidity in liver, heart and kidney transplant recipients. Donor and recipient serologies were screened between January 1, 2004 and January 1, 2005 using HHV8 indirect immunofluorescence latent assay (latent IFA) and indirect immunofluorescent lytic assay (lytic IFA). Recipients negative for latent IFA with a donor positive for at least one test were sequentially monitored for HHV8 viremia and underwent serological tests over a period of 2 years. The results showed that among 2354 donors, HHV8 seroprevalence was 9.9% (lytic IFA) and 4.4% (latent IFA). A total of 454 organ recipients (281 renal, 116 liver and 57 heart) were monitored over a 2-year period. Seroconversion was observed in 12 patients (cumulative incidence 28%) whose donor had positive latent IFA and in 36 patients (cumulative incidence 29%) whose donors were positive only for lytic IFA, without differences across types of transplants. Positive HHV8 viremia was detected in only 4 out of 89 liver transplant recipients during follow-up and not in recipients of other types of transplant. Two liver transplant recipients and one kidney transplant recipient developed KS. In conclusion, although HHV8 transmission is a frequent event after organ transplantation, HHV8-related morbidity is rather rare but can be life threatening. Donor screening is advisable for monitoring HHV8 seronegative liver transplant recipients.
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Affiliation(s)
- C Lebbe
- Assistance Publique-Hôpitaux de Paris, Department of Dermatology, Université Paris Diderot, INSERM U, Hôpital Saint Louis, France.
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49
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Samuel D, Trabelsi S, Karnuah A, Anthony N, Aggrey S. The Use of Dielectric Spectroscopy as a Tool for Predicting Meat Quality in
Poultry. ACTA ACUST UNITED AC 2012. [DOI: 10.3923/ijps.2012.551.555] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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50
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