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Fauteux N, Simon B. Nurses Step Up to Address Climate Change and Health. Am J Nurs 2024; 124:16-18. [PMID: 38511700 DOI: 10.1097/01.naj.0001010544.84445.78] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/22/2024]
Abstract
Opportunities exist to mitigate impacts.
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Belue MJ, Harmon SA, Yang D, An JY, Gaur S, Law YM, Turkbey E, Xu Z, Tetreault J, Lay NS, Yilmaz EC, Phelps TE, Simon B, Lindenberg L, Mena E, Pinto PA, Bagci U, Wood BJ, Citrin DE, Dahut WL, Madan RA, Gulley JL, Xu D, Choyke PL, Turkbey B. Deep Learning-Based Detection and Classification of Bone Lesions on Staging Computed Tomography in Prostate Cancer: A Development Study. Acad Radiol 2024:S1076-6332(24)00008-4. [PMID: 38262813 DOI: 10.1016/j.acra.2024.01.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 01/02/2024] [Accepted: 01/04/2024] [Indexed: 01/25/2024]
Abstract
RATIONALE AND OBJECTIVES Efficiently detecting and characterizing metastatic bone lesions on staging CT is crucial for prostate cancer (PCa) care. However, it demands significant expert time and additional imaging such as PET/CT. We aimed to develop an ensemble of two automated deep learning AI models for 1) bone lesion detection and segmentation and 2) benign vs. metastatic lesion classification on staging CTs and to compare its performance with radiologists. MATERIALS AND METHODS This retrospective study developed two AI models using 297 staging CT scans (81 metastatic) with 4601 benign and 1911 metastatic lesions in PCa patients. Metastases were validated by follow-up scans, bone biopsy, or PET/CT. Segmentation AI (3DAISeg) was developed using the lesion contours delineated by a radiologist. 3DAISeg performance was evaluated with the Dice similarity coefficient, and classification AI (3DAIClass) performance on AI and radiologist contours was assessed with F1-score and accuracy. Training/validation/testing data partitions of 70:15:15 were used. A multi-reader study was performed with two junior and two senior radiologists within a subset of the testing dataset (n = 36). RESULTS In 45 unseen staging CT scans (12 metastatic PCa) with 669 benign and 364 metastatic lesions, 3DAISeg detected 73.1% of metastatic (266/364) and 72.4% of benign lesions (484/669). Each scan averaged 12 extra segmentations (range: 1-31). All metastatic scans had at least one detected metastatic lesion, achieving a 100% patient-level detection. The mean Dice score for 3DAISeg was 0.53 (median: 0.59, range: 0-0.87). The F1 for 3DAIClass was 94.8% (radiologist contours) and 92.4% (3DAISeg contours), with a median false positive of 0 (range: 0-3). Using radiologist contours, 3DAIClass had PPV and NPV rates comparable to junior and senior radiologists: PPV (semi-automated approach AI 40.0% vs. Juniors 32.0% vs. Seniors 50.0%) and NPV (AI 96.2% vs. Juniors 95.7% vs. Seniors 91.9%). When using 3DAISeg, 3DAIClass mimicked junior radiologists in PPV (pure-AI 20.0% vs. Juniors 32.0% vs. Seniors 50.0%) but surpassed seniors in NPV (pure-AI 93.8% vs. Juniors 95.7% vs. Seniors 91.9%). CONCLUSION Our lesion detection and classification AI model performs on par with junior and senior radiologists in discerning benign and metastatic lesions on staging CTs obtained for PCa.
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Affiliation(s)
- Mason J Belue
- Molecular Imaging Branch, National Cancer Institute, National Institutes of Health, 10 Center Dr., MSC 1182, Building 10, Room B3B85, Bethesda, Maryland, USA (M.J.B., S.A.H., N.S.L., E.C.Y., T.E.P., B.S., L.L., E.M., P.L.C., B.T.)
| | - Stephanie A Harmon
- Molecular Imaging Branch, National Cancer Institute, National Institutes of Health, 10 Center Dr., MSC 1182, Building 10, Room B3B85, Bethesda, Maryland, USA (M.J.B., S.A.H., N.S.L., E.C.Y., T.E.P., B.S., L.L., E.M., P.L.C., B.T.)
| | - Dong Yang
- NVIDIA Corporation, Santa Clara, California, USA (D.Y., Z.X., J.T., D.X.)
| | - Julie Y An
- Department of Radiology, University of California, San Diego, California, USA (J.Y.A.)
| | - Sonia Gaur
- Department of Radiology, Massachusetts General Hospital, Boston, Massachusetts, USA (S.G.)
| | - Yan Mee Law
- Department of Radiology, Singapore General Hospital, Singapore (Y.M.L.)
| | - Evrim Turkbey
- Department of Radiology, Clinical Center, National Institutes of Health, Bethesda, Maryland, USA (E.T., B.J.W.)
| | - Ziyue Xu
- NVIDIA Corporation, Santa Clara, California, USA (D.Y., Z.X., J.T., D.X.)
| | - Jesse Tetreault
- NVIDIA Corporation, Santa Clara, California, USA (D.Y., Z.X., J.T., D.X.)
| | - Nathan S Lay
- Molecular Imaging Branch, National Cancer Institute, National Institutes of Health, 10 Center Dr., MSC 1182, Building 10, Room B3B85, Bethesda, Maryland, USA (M.J.B., S.A.H., N.S.L., E.C.Y., T.E.P., B.S., L.L., E.M., P.L.C., B.T.)
| | - Enis C Yilmaz
- Molecular Imaging Branch, National Cancer Institute, National Institutes of Health, 10 Center Dr., MSC 1182, Building 10, Room B3B85, Bethesda, Maryland, USA (M.J.B., S.A.H., N.S.L., E.C.Y., T.E.P., B.S., L.L., E.M., P.L.C., B.T.)
| | - Tim E Phelps
- Molecular Imaging Branch, National Cancer Institute, National Institutes of Health, 10 Center Dr., MSC 1182, Building 10, Room B3B85, Bethesda, Maryland, USA (M.J.B., S.A.H., N.S.L., E.C.Y., T.E.P., B.S., L.L., E.M., P.L.C., B.T.)
| | - Benjamin Simon
- Molecular Imaging Branch, National Cancer Institute, National Institutes of Health, 10 Center Dr., MSC 1182, Building 10, Room B3B85, Bethesda, Maryland, USA (M.J.B., S.A.H., N.S.L., E.C.Y., T.E.P., B.S., L.L., E.M., P.L.C., B.T.)
| | - Liza Lindenberg
- Molecular Imaging Branch, National Cancer Institute, National Institutes of Health, 10 Center Dr., MSC 1182, Building 10, Room B3B85, Bethesda, Maryland, USA (M.J.B., S.A.H., N.S.L., E.C.Y., T.E.P., B.S., L.L., E.M., P.L.C., B.T.)
| | - Esther Mena
- Molecular Imaging Branch, National Cancer Institute, National Institutes of Health, 10 Center Dr., MSC 1182, Building 10, Room B3B85, Bethesda, Maryland, USA (M.J.B., S.A.H., N.S.L., E.C.Y., T.E.P., B.S., L.L., E.M., P.L.C., B.T.)
| | - Peter A Pinto
- Urologic Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA (P.A.P.)
| | - Ulas Bagci
- Radiology and Biomedical Engineering Department, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA (U.B.)
| | - Bradford J Wood
- Department of Radiology, Clinical Center, National Institutes of Health, Bethesda, Maryland, USA (E.T., B.J.W.); Center for Interventional Oncology, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA (B.J.W.)
| | - Deborah E Citrin
- Radiation Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA (D.E.C.)
| | - William L Dahut
- Genitourinary Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA (W.L.D., R.A.M.)
| | - Ravi A Madan
- Genitourinary Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA (W.L.D., R.A.M.)
| | - James L Gulley
- Center for Immuno-Oncology, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA (J.L.G.)
| | - Daguang Xu
- NVIDIA Corporation, Santa Clara, California, USA (D.Y., Z.X., J.T., D.X.)
| | - Peter L Choyke
- Molecular Imaging Branch, National Cancer Institute, National Institutes of Health, 10 Center Dr., MSC 1182, Building 10, Room B3B85, Bethesda, Maryland, USA (M.J.B., S.A.H., N.S.L., E.C.Y., T.E.P., B.S., L.L., E.M., P.L.C., B.T.)
| | - Baris Turkbey
- Molecular Imaging Branch, National Cancer Institute, National Institutes of Health, 10 Center Dr., MSC 1182, Building 10, Room B3B85, Bethesda, Maryland, USA (M.J.B., S.A.H., N.S.L., E.C.Y., T.E.P., B.S., L.L., E.M., P.L.C., B.T.).
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Giorgi J, Simon B, Destras G, Semanas Q, Ginevra C, Boyer T, Regue H, Billaud G, Ducastelle S, Ader F, Morfin F, Josset L, Frobert E. Novel UL23 and UL30 substitutions in HSV1 and HSV2 viruses related to polymorphism or drug resistance. Antiviral Res 2023:105672. [PMID: 37453453 DOI: 10.1016/j.antiviral.2023.105672] [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: 04/27/2023] [Revised: 07/11/2023] [Accepted: 07/12/2023] [Indexed: 07/18/2023]
Abstract
Data on herpes simplex virus (HSV) polymorphism as well as acyclovir (ACV) and foscarnet (FOS) resistance mutations are not exhaustive and may hinder accurate diagnosis by next-generation sequencing (NGS). Here, we report novel UL23 and UL30 substitutions for HSV1 and HSV2 identified in immunocompromised patients treated for hematological malignancies during the last 6 years of HSV resistance surveillance at the University Hospital of Lyon. For HSV1, 35 novel UL23 substitutions and 52 novel UL30 substitutions were identified. For HSV2, 2 novel UL23 substitutions and 12 novel UL30 substitutions were identified. These results allow to complete the database of HSV1 and HSV2 substitutions, related either to polymorphism or to ACV and FOS resistance.
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Affiliation(s)
- J Giorgi
- Laboratoire de Virologie, Institut des Agents Infectieux, Hospices Civils de Lyon, Groupement Hospitalier Nord, 69004, Lyon, France
| | - B Simon
- Laboratoire de Virologie, Institut des Agents Infectieux, Hospices Civils de Lyon, Groupement Hospitalier Nord, 69004, Lyon, France; GenEPII Sequencing Platform, Institut des Agents Infectieux, Hospices Civils de Lyon, 69004, Lyon, France
| | - G Destras
- Laboratoire de Virologie, Institut des Agents Infectieux, Hospices Civils de Lyon, Groupement Hospitalier Nord, 69004, Lyon, France; GenEPII Sequencing Platform, Institut des Agents Infectieux, Hospices Civils de Lyon, 69004, Lyon, France; Université Lyon, Virpath, CIRI, INSERM U1111, CNRS UMR5308, ENS Lyon, Université Claude Bernard Lyon 1, 69008, Lyon, France
| | - Q Semanas
- Laboratoire de Virologie, Institut des Agents Infectieux, Hospices Civils de Lyon, Groupement Hospitalier Nord, 69004, Lyon, France; GenEPII Sequencing Platform, Institut des Agents Infectieux, Hospices Civils de Lyon, 69004, Lyon, France
| | - C Ginevra
- GenEPII Sequencing Platform, Institut des Agents Infectieux, Hospices Civils de Lyon, 69004, Lyon, France; Laboratoire de Bactériologie, Centre National de Référence des Légionnelles, Institut des Agents Infectieux, Hospices Civils de Lyon, Groupement Hospitalier Nord, 69004, Lyon, France
| | - T Boyer
- Laboratoire de Virologie, Institut des Agents Infectieux, Hospices Civils de Lyon, Groupement Hospitalier Nord, 69004, Lyon, France; GenEPII Sequencing Platform, Institut des Agents Infectieux, Hospices Civils de Lyon, 69004, Lyon, France
| | - H Regue
- Laboratoire de Virologie, Institut des Agents Infectieux, Hospices Civils de Lyon, Groupement Hospitalier Nord, 69004, Lyon, France; GenEPII Sequencing Platform, Institut des Agents Infectieux, Hospices Civils de Lyon, 69004, Lyon, France
| | - G Billaud
- Laboratoire de Virologie, Institut des Agents Infectieux, Hospices Civils de Lyon, Groupement Hospitalier Nord, 69004, Lyon, France
| | - S Ducastelle
- Service d'Hématologie Clinique, Hospices Civils de Lyon, Centre Hospitalier Lyon Sud, 69495, Pierre-Bénite, France
| | - F Ader
- Université Lyon, Virpath, CIRI, INSERM U1111, CNRS UMR5308, ENS Lyon, Université Claude Bernard Lyon 1, 69008, Lyon, France; Service de Maladies Infectieuses et Tropicales, Groupement Hospitalier Nord, Hospices Civils de Lyon, France
| | - F Morfin
- Laboratoire de Virologie, Institut des Agents Infectieux, Hospices Civils de Lyon, Groupement Hospitalier Nord, 69004, Lyon, France; Université Lyon, Virpath, CIRI, INSERM U1111, CNRS UMR5308, ENS Lyon, Université Claude Bernard Lyon 1, 69008, Lyon, France
| | - L Josset
- Laboratoire de Virologie, Institut des Agents Infectieux, Hospices Civils de Lyon, Groupement Hospitalier Nord, 69004, Lyon, France; GenEPII Sequencing Platform, Institut des Agents Infectieux, Hospices Civils de Lyon, 69004, Lyon, France; Université Lyon, Virpath, CIRI, INSERM U1111, CNRS UMR5308, ENS Lyon, Université Claude Bernard Lyon 1, 69008, Lyon, France
| | - E Frobert
- Laboratoire de Virologie, Institut des Agents Infectieux, Hospices Civils de Lyon, Groupement Hospitalier Nord, 69004, Lyon, France; Université Lyon, Virpath, CIRI, INSERM U1111, CNRS UMR5308, ENS Lyon, Université Claude Bernard Lyon 1, 69008, Lyon, France.
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Simon B, Wogram E, Camp AT, Prinz M, Urbach H, Erny D, Taschner CA. Freiburg Neuropathology Case Conference : A 43-year-old Patient Presenting with a Right-sided, Slowly Progressing, Painless Exophthalmos and Ptosis. Clin Neuroradiol 2023; 33:255-260. [PMID: 36805296 PMCID: PMC10014779 DOI: 10.1007/s00062-023-01267-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/24/2023] [Indexed: 02/23/2023]
Affiliation(s)
- B Simon
- Department of Neuroradiology, University of Freiburg, Freiburg, Germany
- Medical Centre-University of Freiburg, Faculty of Medicine, University of Freiburg, Breisacherstr. 64, 79106, Freiburg, Germany
| | - E Wogram
- Department of Neuropathology, University of Freiburg, Freiburg, Germany
- Medical Centre-University of Freiburg, Faculty of Medicine, University of Freiburg, Breisacherstr. 64, 79106, Freiburg, Germany
| | - A T Camp
- Department of Ophthalmology, University of Freiburg, Freiburg, Germany
- Medical Centre-University of Freiburg, Faculty of Medicine, University of Freiburg, Breisacherstr. 64, 79106, Freiburg, Germany
| | - M Prinz
- Department of Neuropathology, University of Freiburg, Freiburg, Germany
- Medical Centre-University of Freiburg, Faculty of Medicine, University of Freiburg, Breisacherstr. 64, 79106, Freiburg, Germany
| | - H Urbach
- Department of Neuroradiology, University of Freiburg, Freiburg, Germany
- Medical Centre-University of Freiburg, Faculty of Medicine, University of Freiburg, Breisacherstr. 64, 79106, Freiburg, Germany
| | - D Erny
- Department of Neuropathology, University of Freiburg, Freiburg, Germany
- Medical Centre-University of Freiburg, Faculty of Medicine, University of Freiburg, Breisacherstr. 64, 79106, Freiburg, Germany
| | - C A Taschner
- Department of Neuroradiology, University of Freiburg, Freiburg, Germany.
- Medical Centre-University of Freiburg, Faculty of Medicine, University of Freiburg, Breisacherstr. 64, 79106, Freiburg, Germany.
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Mitsi M, Urbane R, Simon B, Kuromi Y, Hasebe R, Dhar S. Abstract 1884: Optical coherence tomography for label-free real 3D imaging of ex-vivo tumor cultures. Cancer Res 2022. [DOI: 10.1158/1538-7445.am2022-1884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
The use of advanced ex-vivo human organotypic cultures is rapidly growing in the field of oncology research and diagnostics, with a focus on patient-derived organoids and tumor tissue specimens cultured in artificial systems capable of replicating tumor development mechanisms. These mechanisms include metastasis, angiogenesis and formation of dysplasia. Our objective is to enhance the label-free imaging and analytical capabilities of these complex tissue samples to enable screening and diagnostics applications.SCREEN Holdings Inc., has developed a unique infrared laser-based optical coherence tomography (OCT) technology enabling non-invasive, label-free, three-dimensional (3D) imaging of tumoroids, epithelial cystic organoids, sprouting endothelial neo-vasculature and metastatic single cells. The imaging is carried out on the 3DProSeed hydrogel plates developed by Ectica Technologies, a glass-bottom 96-well plate featuring pre-casted, synthetic and optically clear hydrogels for ex-vivo tumor cultures.Here we present culture and imaging protocols with the resulting 3D tomographic reconstructions of endothelial sprouting vessels, cystic epithelial organoids of the colon and 3D invasion assays of highly metastatic glioma cells.
Citation Format: Maria Mitsi, Riccardo Urbane, Benjamin Simon, Yasushi Kuromi, Ryo Hasebe, Sumeer Dhar. Optical coherence tomography for label-free real 3D imaging of ex-vivo tumor cultures [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2022; 2022 Apr 8-13. Philadelphia (PA): AACR; Cancer Res 2022;82(12_Suppl):Abstract nr 1884.
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Affiliation(s)
- Maria Mitsi
- 1ECTICA Technologies AG, Zurich, Switzerland
| | | | | | | | | | - Sumeer Dhar
- 3SCREEN EUROPE GP B.V, Amstelveen, Netherlands
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Berger T, Siepe M, Simon B, Beyersdorf F, Bamberg F, Schlett CL, Kondov S, Czerny M, Rylski B, Kreibich M. Pulmonary Artery Diameter: Means and Normal Limits: Assessment by Computed Tomography Angiography. Thorac Cardiovasc Surg 2022. [DOI: 10.1055/s-0042-1742826] [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: 10/19/2022]
Affiliation(s)
- T. Berger
- Hugstetter Straße 55, Freiburg, Deutschland
| | - M. Siepe
- Hugstetter Straße 55, Freiburg, Deutschland
| | - B. Simon
- Hugstetter Straße 55, Freiburg, Deutschland
| | | | - F. Bamberg
- Hugstetter Straße 55, Freiburg, Deutschland
| | | | - S. Kondov
- Hugstetter Straße 55, Freiburg, Deutschland
| | - M. Czerny
- Hugstetter Straße 55, Freiburg, Deutschland
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Jarosinski S, Simon B, Baetge C, Parry S, Araos J. The effects of prophylactic dexmedetomidine administration on general anesthesia recovery quality in healthy dogs. Vet Anaesth Analg 2021. [DOI: 10.1016/j.vaa.2021.08.024] [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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Traianos E, Dibnah B, Lendrem D, Clark Y, Macrae V, Slater V, Wood K, Storey D, Simon B, Blake J, Tarn J, Ng WF. AB0051 THE EFFECTS OF NON-INVASIVE VAGUS NERVE STIMULATION ON IMMUNOLOGICAL RESPONSES AND PATIENT REPORTED OUTCOME MEASURES OF FATIGUE IN PATIENTS WITH CHRONIC FATIGUE SYNDROME, FIBROMYALGIA, AND RHEUMATOID ARTHRITIS. Ann Rheum Dis 2021. [DOI: 10.1136/annrheumdis-2021-eular.1999] [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: 11/04/2022]
Abstract
Background:Fatigue is reported as a common symptom among autoimmune and other chronic diseases such as fibromyalgia (FM), a long-term condition with uncertain pathophysiology. Previous studies from our group suggest that non-invasive vagus nerve stimulation (nVNS) may contribute to the improvement of patient reported outcome measures (PROMs) of fatigue in patients with primary Sjögren’s Syndrome (1).Objectives:This follow-up study uses the gammaCore device (electroCore) to assess the effect of nVNS on PROMs of fatigue and immune responses in chronic fatigue syndrome (CFS), FM and rheumatoid arthritis (RA).Methods:The study included thirteen CFS, fourteen FM and fifteen RA patients who used the gammaCore nVNS device twice daily over a 26-day period. Pre- and post- nVNS bloods were drawn at baseline and final visits. Whole blood samples were stimulated with 2 ng/mL lipopolysaccharide (LPS) and the IL-6 and TNF-α cytokine concentrations were quantified at 24 hours. In addition, the epidermal growth factor (EGF), IFN-γ, IL-6, IP-10, MIP-1α, and TNF-α levels were measured in ‘pre-nVNS’ serum and flow cytometric profiles of whole blood immune cells were analysed. The patient reported outcome measures (PROMs) recorded at each visit were the Visual Analogue Scale (VAS) (0-100 cm) of abnormal fatigue, Hospital Anxiety and Depression (HAD) Scale, Orthostatic Grading Scale, Epworth Sleepiness Scale (daytime sleepiness), and Profile of fatigue (PRO-F) for Physical and Mental fatigue. Paired t-tests were performed to assess for changes in PROMs, cytokine levels, and cell subset distribution and associations of cytokine response with PROMs were investigated by correlation analyses.Results:Eleven CFS, twelve FM and fourteen RA patients completed the study. There was a significant reduction in daytime sleepiness in CFS (p =0.0321) and FM (p =0.0294) patients between the final and baseline visits and a significant reduction in HAD depression (p =0.0413) in FM (Fig.1). Improvement in VAS for abnormal fatigue, HAD-Anxiety, HAD-Depression, PRO-F Physical and Mental fatigue was observed in all three groups over the study period with a reduction in VAS fatigue in 64% of CFS, 67% of FM and 62% of RA patients. There were no significant changes in the immune cell subsets or in cytokine response. Finally, higher baseline pre-nVNS supernatant IL-6 levels were predictive of an improvement in VAS fatigue (p =0.0006), Daytime Sleepiness (p =0.0466) and PRO-F Physical fatigue (p =0.0196) in RA, while higher baseline TNF-α levels were predictive of an improvement in VAS fatigue (p =0.0003), Daytime Sleepiness (p =0.0380), Orthostatic (p =0.0281) and PRO-F Physical fatigue (p =0.0007) in FM.Conclusion:Our findings suggest that nVNS may contribute to the improvement of PROMs of fatigue in CFS, FM and RA. NVNS led to significant reductions in daytime sleepiness in CFS and FM, and depression in FM. Further studies and a larger sample size are needed to investigate the potential effects of nVNS on diseases characterised by persistent fatigue.References:[1]Tarn J, Legg S, Mitchell S, Simon B, Ng WF. The Effects of Noninvasive Vagus Nerve Stimulation on Fatigue and Immune Responses in Patients With Primary Sjögren’s Syndrome. Neuromodulation Technol Neural Interface. 2018;22(5):580–5.Figure 1.VAS for abnormal fatigue and PROMs recorded at baseline and final visits in patients with chronic fatigue syndrome (CFS), fibromyalgia (FM) and rheumatoid arthritis (RA). Boxplots show the median, upper, and lower quartiles for PROMs at visit 1 and visit 3 in each disease group. Paired-t tests revealed a significant reduction in daytime sleepiness in CFS and FM (B), and a significant reduction in HAD depression in FM (E). Improvement trends were observed in VAS for abnormal fatigue, HAD-Anxiety, HAD-Depression, PRO-F Physical fatigue and PRO-F Mental fatigue in all three groups over the 26-day study period.Acknowledgements:This study received infrastructural support from the National Institute of Health Research (NIHR) Newcastle Biomedical Research Centre at Newcastle Hospitals Foundation Trust and Newcastle University.Disclosure of Interests:Emmanuella Traianos: None declared, Bethany Dibnah: None declared, Dennis Lendrem: None declared, Yasmin Clark: None declared, Victoria Macrae: None declared, Victoria Slater: None declared, Karl Wood: None declared, David Storey: None declared, Bruce Simon Shareholder of: Bruce Simon is an employee and shareholder of electroCore., Employee of: electroCore, Inc., Justyna Blake Shareholder of: Justyna Blake is an employee of electroCore, and receives stock ownership., Employee of: electroCore, Inc., Jessica Tarn: None declared, Wan Fai Ng: None declared
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Luckett R, Painter H, Hacker MR, Simon B, Seiphetlheng A, Erlinger A, Eakin C, Moyo S, Kyokunda LT, Esselen K, Feldman S, Morroni C, Ramogola-Masire D. Persistence and clearance of high-risk human papillomavirus and cervical dysplasia at 1 year in women living with human immunodeficiency virus: a prospective cohort study. BJOG 2021; 128:1986-1996. [PMID: 34008294 DOI: 10.1111/1471-0528.16758] [Citation(s) in RCA: 3] [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] [Subscribe] [Scholar Register] [Accepted: 03/24/2021] [Indexed: 01/11/2023]
Abstract
OBJECTIVE Evaluate 1-year outcomes of cervical cancer screening and treatment using primary high-risk human papillomavirus (HPV) testing in women living with human immunodeficiency virus (HIV). DESIGN Prospective cohort study. SETTING HIV treatment centre in Botswana. POPULATION Women living with HIV. METHODS Participants underwent cervical cancer screening with high-risk HPV testing and triage evaluation at baseline and 1-year follow up. Excisional treatment was offered as indicated. Histopathology was the reference standard. MAIN OUTCOME MEASURES Persistence, clearance and incidence of high-risk HPV infection; and persistence, progression, regression, cure and incidence of cervical dysplasia. RESULTS Among 300 women screened at baseline, 237 attended follow up (79%). High-risk HPV positivity significantly decreased from 28% at baseline to 20% at 1 year (P = 0.02). High-risk HPV persistence was 46% and clearance was 54%; incidence was high at 9%. Prevalence of cervical intraepithelial neoplasia Grade 2 (CIN2) or higher was most common in participants with incident high-risk HPV (53%). CIN2 or higher was also common in those with persistent high-risk HPV (32%) and even in those who cleared high-risk HPV (30%). Of the high-risk HPV-positive participants at baseline with <CIN2, 40% progressed to CIN2 or higher at follow up. CONCLUSION The high incidence of high-risk HPV and high-grade cervical dysplasia in women living with HIV after one round of high-risk HPV-based screening and treatment raises concern about the rate of progression of high-risk HPV infection to dysplasia. Persistent disease is common. Caution in spacing cervical cancer screening intervals using high-risk HPV testing in women living with HIV is warranted. TWEETABLE ABSTRACT High incidence and persistence of HPV and CIN2+ in women living with HIV 1 year after screening and treatment.
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Affiliation(s)
- R Luckett
- Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Boston, MA, USA.,Botswana Harvard AIDS Institute Partnership, Gaborone, Botswana
| | - H Painter
- Botswana Harvard AIDS Institute Partnership, Gaborone, Botswana
| | - M R Hacker
- Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Boston, MA, USA.,Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - B Simon
- Botswana Harvard AIDS Institute Partnership, Gaborone, Botswana
| | - A Seiphetlheng
- Department of Obstetrics and Gynaecology, Princess Marina Hospital, Gaborone, Botswana
| | - A Erlinger
- Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - C Eakin
- Botswana Harvard AIDS Institute Partnership, Gaborone, Botswana.,Department of Obstetrics and Gynecology, Creighton University School of Medicine-Phoenix, Phoenix, AZ, USA
| | - S Moyo
- Botswana Harvard AIDS Institute Partnership, Gaborone, Botswana.,Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - L T Kyokunda
- Department of Pathology, University of Botswana, Gaborone, Botswana
| | - K Esselen
- Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Boston, MA, USA.,Harvard Medical School, Boston, MA, USA
| | - S Feldman
- Harvard Medical School, Boston, MA, USA.,Brigham and Women's Hospital, Boston, MA, USA
| | - C Morroni
- Botswana Harvard AIDS Institute Partnership, Gaborone, Botswana.,Department of International Public Health, Liverpool School of Tropical Medicine, Liverpool, UK
| | - D Ramogola-Masire
- Department of Obstetrics and Gynaecology, University of Botswana, Gaborone, Botswana
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10
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Moreno K, Scallan E, Monteiro B, Steagall P, Simon B. The antinociceptive effects of a high-concentration formulation of buprenorphine alone or followed by hydromorphone in conscious cats. Vet Anaesth Analg 2020. [DOI: 10.1016/j.vaa.2020.07.023] [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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11
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Jarosinski S, Hatfield R, Simon B, Matthews N, Arnold C. A comparison of detomidine versus xylazine on recovery score and time when used as a preanesthetic sedative for equine castration. Vet Anaesth Analg 2019. [DOI: 10.1016/j.vaa.2019.08.023] [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: 10/25/2022]
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12
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Schindler A, Meabon J, Baskin B, Cooper E, Yagi M, Simon B, Peskind E, Phillips P, Cook D. Non-invasive vagus nerve stimulation for the prevention/treatment of comorbid mild traumatic brain injury and PTSD. Brain Stimul 2019. [DOI: 10.1016/j.brs.2018.12.356] [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] Open
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13
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Braegelmann C, Jaschke K, Simon B, Hornung T, Bieber T, Wenzel J. Testen Sie Ihr Fachwissen. Pneumologie 2018. [DOI: 10.1055/s-0044-101557] [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: 10/27/2022]
Affiliation(s)
- C. Braegelmann
- Klinik und Poliklinik für Dermatologie und Allergologie, Universitätsklinikum Bonn
| | - K. Jaschke
- Klinik und Poliklinik für Dermatologie und Allergologie, Universitätsklinikum Bonn
| | - B. Simon
- Radiologische Klinik, Universitätsklinikum Bonn
| | - T. Hornung
- Klinik und Poliklinik für Dermatologie und Allergologie, Universitätsklinikum Bonn
| | - T. Bieber
- Klinik und Poliklinik für Dermatologie und Allergologie, Universitätsklinikum Bonn
| | - J. Wenzel
- Klinik und Poliklinik für Dermatologie und Allergologie, Universitätsklinikum Bonn
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14
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Nagy ZA, Simon B, Tóth Z, Vág J. Evaluating the efficiency of the Dental Teacher system as a digital preclinical teaching tool. Eur J Dent Educ 2018; 22:e619-e623. [PMID: 29797383 DOI: 10.1111/eje.12365] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 04/29/2018] [Indexed: 06/08/2023]
Abstract
AIM To investigate the use of a preparation evaluation system for enhancing the learning and performance of undergraduate dental students when cutting preparations. MATERIALS AND METHODS Two groups of eighteen students each were randomly chosen from the fourth year of the dental programme. The task chosen for this study was to make a cavity in preparation for a mesio-occlusal ceramic onlay in a plastic tooth. The dimensions of the cavity were defined, and 2 burs of known size were used for preparation. For assessment, each tooth preparation was scanned with a digital scanner and analysed using the Dental Teacher software. In the control group, a second corrective preparation was made following the supervisor's instructions. In the test group, the second preparation was made based on Dental Teacher analysis. The final cavities were all scanned and assessed by Dental Teacher comparing the similarity of students' onlay cavity preparations to the ideal preparation. All data were recorded and analysed by the software, including cavity depth and width in the occlusal and proximal box, the extent of mesiobuccal cusp reduction and shoulder width around the mesiobuccal cusp. Finally, the data were statistically evaluated using a Wilcoxon matched pairs test and a Mann-Whitney U test. RESULTS Three of the 6 cavity dimension parameters improved significantly in the test group whilst no improvement was found in the control group. A positive correlation was found between the improvement and the deviation measured for the first preparations, and it was stronger in the test group than in the control group. CONCLUSIONS The use of Dental Teacher helped students to learn the preparation technique for onlay restorations more efficiently and seems to be a promising and useful method to facilitate their individual performance. Student feedback showed a great demand for digital aids in education.
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Affiliation(s)
- Z A Nagy
- Department of Conservative Dentistry, Semmelweis University, Budapest, Hungary
| | - B Simon
- Department of Conservative Dentistry, Semmelweis University, Budapest, Hungary
| | - Z Tóth
- Department of Conservative Dentistry, Semmelweis University, Budapest, Hungary
| | - J Vág
- Department of Conservative Dentistry, Semmelweis University, Budapest, Hungary
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15
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Schmeel L, Stumpf S, Koch D, Leitzen C, Vornholt S, Simon B, Schoroth F, Müdder T, Röhner F, Garbe S, Schmeel F, Schild H, Wilhelm-Buchstab T. EP-1264: Prophylactically applied Hydrofilm reduces radiation dermatitis in whole-breast radiation therapy. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)31574-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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16
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Abstract
During the extracorporeal support (LFPPV-ECCO2R) of 11 patients suffering from severe lung failure (ARDS), we consistently noticed a higher arterial than mixed-venous PCO2 in blood samples drawn at the same time. Two explanations are possible: a) the Haldane effect (HE), b) CO2 from lung tissue metabolism. In order to distinguish changes in PCO2 due to the HE from those due to tissue CO2 production, CO2 content (CCO2) was calculated. The results were compared to animal experiments with hyperoxic apnea, after which arterial and mixed-venous samples were drawn simultaneously. All blood gas samples were analyzed for pH, PCO2, PO2, and 02-saturation, from which CCO2 was calculated. In both groups, PaCO2 was 2.15 mmHg (2.7 mmHg respectively) higher at a lower CaCO2 (-2.87 ml/l, -14.9 ml/l). Oxygen saturation increased by 8.1% in the human group and 17.8% in the animal group. A significant relationship was found between changes in PCO2 and changes in 02-saturation. This is a demonstration of the Haldane effect.
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Affiliation(s)
- B.H. Hoffmann
- Department of Physiology and Anesthesiology, University of Aachen, Aachen - Germany
| | - S.H. Böhm
- Department of Physiology and Anesthesiology, University of Aachen, Aachen - Germany
| | - A.H. Morris
- Pulmonary Division, LDS Hospital, Salt Lake City, Utah - USA
| | - B. Simon
- Department of Physiology and Anesthesiology, University of Aachen, Aachen - Germany
| | - K. Mottaghy
- Department of Physiology and Anesthesiology, University of Aachen, Aachen - Germany
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17
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Simon B, Scallan E, Von Pfeil D, Boruta D, Wall R, Nibblett B, O O, Beauchamp G, Steagall P. Perceptions and opinions of pet owners in the United States about pain management, anesthesia, and surgical pain in dogs and cats. Vet Anaesth Analg 2017. [DOI: 10.1016/j.vaa.2017.09.006] [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: 10/18/2022]
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18
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Jasny BR, Wigginton N, McNutt M, Bubela T, Buck S, Cook-Deegan R, Gardner T, Hanson B, Hustad C, Kiermer V, Lazer D, Lupia A, Manrai A, McConnell L, Noonan K, Phimister E, Simon B, Strandburg K, Summers Z, Watts D. Fostering reproducibility in industry-academia research. Science 2017; 357:759-761. [PMID: 28839064 DOI: 10.1126/science.aan4906] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Affiliation(s)
| | - N Wigginton
- University of Michigan, Ann Arbor, MI 48109, USA
| | - M McNutt
- National Academy of Sciences, Washington, DC 20001, USA.
| | - T Bubela
- Faculty of Health Sciences, Simon Fraser University, British Columbia, BC V5A 1S6, Canada
| | - S Buck
- Laura and John Arnold Foundation, Houston, TX 77056, USA
| | - R Cook-Deegan
- Consortium for Science Policy and Outcomes at Arizona State University, Washington, DC 20009, USA
| | - T Gardner
- Riffyn, Inc., Oakland, CA 94612, USA
| | - B Hanson
- American Geophysical Union, Washington, DC 20009, USA
| | - C Hustad
- Merck & Co., Inc., Kenilworth, NJ 07033, USA
| | - V Kiermer
- Public Library of Science (PLOS), San Francisco, CA 94111, USA
| | - D Lazer
- Northeastern University, Boston, MA 02115, USA
| | - A Lupia
- University of Michigan, Ann Arbor, MI 48109, USA
| | - A Manrai
- Harvard Medical School, Boston, MA 02115, USA
| | - L McConnell
- Bayer U.S., Research Triangle Park, NC 27709, USA
| | - K Noonan
- McDonnell Boehnen Hulbert & Berghoff LLP, Chicago, IL 60606, USA
| | - E Phimister
- The New England Journal of Medicine, Boston, MA 02115, USA
| | - B Simon
- Thomas Jefferson School of Law, San Diego, CA 92101, USA
| | - K Strandburg
- New York University School of Law, New York, NY 10012, USA
| | - Z Summers
- ExxonMobil Research and Engineering Company, Annandale, NJ 08801, USA
| | - D Watts
- Microsoft Research, New York, NY 10003, USA
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19
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Lambert Y, Lamhaut L, Le Bail G, Loyeau A, Lapostolle F, Juliard J, Dupas F, Simon B, Allonneau A, Boche T, Pires V, Danchin N, Bataille S. 1203Evolution of early mortality from 2003 to 2013 according to age and use of primary PCI in MICU-transported STEMI patients. Data from the eMust registry in 23,562 patients in the greater Paris area. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.1203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
| | - L. Lamhaut
- Service d'AIde Médicale Urgente Necker, Paris, France
| | - G. Le Bail
- Hopital Raymond Poincaré, Garches, France
| | - A. Loyeau
- Health Regional Agency of Ile de France, Paris, France
| | | | | | - F. Dupas
- Rene Dubos Hospital Center, Pontoise, France
| | - B. Simon
- Hospital Sud-Francilien, Corbeil-Essonnes, France
| | - A. Allonneau
- Brigade des Sapeurs Pompiers de Paris, Paris, France
| | - T. Boche
- University Hospital Henri Mondor, Creteil, France
| | - V. Pires
- Service d'AIde Médicale Urgente, Melun, France
| | - N. Danchin
- AP-HP - European Hospital Georges Pompidou, Paris, France
| | - S. Bataille
- Health Regional Agency of Ile de France, Paris, France
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20
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Schmeel F, Simon B, Luetkens J, Träber F, Schmeel L, Meyer C, Schild H, Hadizadeh D. Prognostische Wertigkeit der Diffusionswichtung vor Radioembolisation kolorektaler Lebermetastasen. ROFO-FORTSCHR RONTG 2017. [DOI: 10.1055/s-0037-1600298] [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: 10/19/2022]
Affiliation(s)
- F Schmeel
- Universitätsklinikum Bonn, Radiologische Klinik, Bonn
| | - B Simon
- Universitätsklinikum Bonn, Radiologische Klinik, Bonn
| | - J Luetkens
- Universitätsklinikum Bonn, Radiologische Klinik, Bonn
| | - F Träber
- Universitätsklinikum Bonn, Radiologische Klinik, Bonn
| | - L Schmeel
- Universitätsklinikum Bonn, Radiologische Klinik, Bonn
| | - C Meyer
- Universitätsklinikum Bonn, Radiologische Klinik, Bonn
| | - H Schild
- Universitätsklinikum Bonn, Radiologische Klinik, Bonn
| | - D Hadizadeh
- Universitätsklinikum Bonn, Radiologische Klinik, Bonn
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21
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Gaüzère BA, Ouellet I, Nottebrock D, Nied JC, Beya-Kadiebwe B, Camara AK, Camara D, Camara MLM, Camara M, Soumah A, Tounkara MK, Monteil V, Camara A, Bauffe F, Camara A, Camara IB, Simon B, Jaspard M, Tran-Minh T, L'Hériteau F. [Input of a laboratory in the management of patients with Ebola virus disease and in the training of health personnel: experience of the Forecariah Ebola treatment centre (Guinea) in 2015]. Bull Soc Pathol Exot 2016; 109:248-255. [PMID: 27277822 DOI: 10.1007/s13149-016-0491-4] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2015] [Accepted: 03/22/2016] [Indexed: 06/06/2023]
Abstract
Ebola virus disease (EVD) is associated with a high lethality rate even when the afflicted are provided with good support in an Ebola treatment center (ETC). Basic laboratory tests can help to better understand the pathophysiology of the disease, to guide treatment and to establish simple protocols and procedures tailored to the practice of medicine in the context of such precarious environment for caregivers. Based on a few clinical cases of patients treated in the ETC of Forecariah, Guinea, run by the French Red Cross, this article describes the difficult conditions associated with the provision of medical practice in this challenging environment, aiming to minimize the casualties in the EVD patient and to train the health staff.
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Affiliation(s)
- B-A Gaüzère
- Croix-Rouge française, 98 rue Didot, 75014, Paris, France.
- Service de réanimation polyvalente, CHU de La Réunion, site Centre Hospitalier Félix Guyon, 97400, Saint-Denis, Réunion, France.
- Centre René Labusquière, Université de Bordeaux, 33000, Bordeaux, France.
| | - I Ouellet
- Croix-Rouge canadienne, 170 rue Metcalfe, Ottawa, Ontario, K2P 2P2, Canada
- Département de médecine de famille et de médecine d'urgence, Faculté de médecine et des sciences de la santé, Université de Sherbrooke et Service d'urgence, CHU Sherbrooke, Sherbrooke, Canada
| | - D Nottebrock
- Croix-Rouge canadienne, 170 rue Metcalfe, Ottawa, Ontario, K2P 2P2, Canada
- UBC Department of Family Medicine, Kelowna General Hospital, Kelowna, 2268 Pandosy street, BC, Canada, VTY 1T2
| | - J-C Nied
- Croix-Rouge française, 98 rue Didot, 75014, Paris, France
| | | | - A K Camara
- Croix-Rouge française, 98 rue Didot, 75014, Paris, France
| | - D Camara
- Croix-Rouge française, 98 rue Didot, 75014, Paris, France
| | - M L M Camara
- Croix-Rouge française, 98 rue Didot, 75014, Paris, France
| | - M Camara
- Croix-Rouge française, 98 rue Didot, 75014, Paris, France
| | - A Soumah
- Croix-Rouge française, 98 rue Didot, 75014, Paris, France
| | - M K Tounkara
- Croix-Rouge française, 98 rue Didot, 75014, Paris, France
| | - V Monteil
- Expertise France, 73 rue de Vaugirard, 75006, Paris, France
| | - A Camara
- Expertise France, 73 rue de Vaugirard, 75006, Paris, France
| | - F Bauffe
- Expertise France, 73 rue de Vaugirard, 75006, Paris, France
| | - A Camara
- Expertise France, 73 rue de Vaugirard, 75006, Paris, France
| | - I B Camara
- Croix-Rouge française, 98 rue Didot, 75014, Paris, France
| | - B Simon
- Croix-Rouge française, 98 rue Didot, 75014, Paris, France
| | - M Jaspard
- Service de maladies infectieuses et tropicales, hôpital de la Pitié-Salpêtrière, 75013, Paris, France
| | - T Tran-Minh
- Croix-Rouge française, 98 rue Didot, 75014, Paris, France
| | - F L'Hériteau
- Croix-Rouge française, 98 rue Didot, 75014, Paris, France
- Centre de coordination de la lutte contre les infections nosocomiales (CClin) de l'inter-région Paris-Nord, 8 rue Maria-Helena Vieira da Silva, 75014, Paris, France
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22
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Sébert P, Menez JF, Simon B, Barthélémy L. Effects of hydrostatic pressure on malondialdehyde brain contents in yellow freshwater eels. Redox Rep 2016; 1:379-82. [DOI: 10.1080/13510002.1995.11747015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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23
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Leitzen C, Wilhelm-Buchstab T, Schmeel LC, Garbe S, Greschus S, Müdder T, Oberste-Beulmann S, Simon B, Schild HH, Schüller H. MRI during radiotherapy of glioblastoma : Does MRI allow for prognostic stratification? Strahlenther Onkol 2016; 192:481-8. [PMID: 27259515 DOI: 10.1007/s00066-016-0983-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2015] [Accepted: 04/20/2016] [Indexed: 10/21/2022]
Abstract
AIM To evaluate the role of magnetic resonance imaging (MRI) as a predictor for the clinical course in patients with glioblastoma. PATIENTS AND METHODS In 64 patients with glioblastoma undergoing (chemo)radiotherapy MRI studies were obtained before radiation, after 30 gray (Gy), after 60 Gy and during follow-up. MRI findings were assigned to categories: definite progression, questionable progression, no change. Patients were followed clinically. RESULTS At 30 Gy, 23 of 64 patients (36 %) demonstrated definite (dp; n = 15) or questionable (qp; n = 8) progression; in 41/64 (64 %) no change was found compared with preradiation MRI. After radiotherapy at 60 Gy, 26 of 64 (41 %) patients showed dp (n = 18) or qp (n = 8). In 2 cases with qp at the 30 Gy MRI, progress was unquestionable in the 60 Gy MRI study. In the 64 patients, 5 of the 60 Gy MRIs showed dp/qp after being classified as no change at the 30 Gy MRI, 2 of the 30 Gy MRIs showed qp, while the 60 Gy MRI showed tumour regression and 3 fulfilled the criteria for pseudoprogression during ongoing radiotherapy. The 30 Gy study allowed for prognostic stratification: dp/qp compared to stable patients showed median survival of 10.5 versus 20 months. CONCLUSION MR follow-up after 30 Gy in patients undergoing (chemo)radiotherapy for glioblastoma allows prognostic appraisal. Pseudoprogression has to be taken into account, though rare in our setting. Based on these findings, early discussion of treatment modification is possible.
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Affiliation(s)
- C Leitzen
- Radiologische Klinik, FE Strahlentherapie, Universitätsklinik Bonn, Sigmund-Freud-Str. 25, 53105, Bonn, Germany.
| | - T Wilhelm-Buchstab
- Radiologische Klinik, FE Strahlentherapie, Universitätsklinik Bonn, Sigmund-Freud-Str. 25, 53105, Bonn, Germany
| | - L C Schmeel
- Radiologische Klinik, FE Strahlentherapie, Universitätsklinik Bonn, Sigmund-Freud-Str. 25, 53105, Bonn, Germany
| | - S Garbe
- Radiologische Klinik, FE Strahlentherapie, Universitätsklinik Bonn, Sigmund-Freud-Str. 25, 53105, Bonn, Germany
| | - S Greschus
- Radiologische Klinik, Universitätsklinik Bonn, Bonn, Germany
| | - T Müdder
- Radiologische Klinik, FE Strahlentherapie, Universitätsklinik Bonn, Sigmund-Freud-Str. 25, 53105, Bonn, Germany
| | - S Oberste-Beulmann
- Radiologische Klinik, FE Strahlentherapie, Universitätsklinik Bonn, Sigmund-Freud-Str. 25, 53105, Bonn, Germany
| | - B Simon
- Radiologische Klinik, FE Strahlentherapie, Universitätsklinik Bonn, Sigmund-Freud-Str. 25, 53105, Bonn, Germany
| | - H H Schild
- Radiologische Klinik, Universitätsklinik Bonn, Bonn, Germany
| | - H Schüller
- Radiologische Klinik, FE Strahlentherapie, Universitätsklinik Bonn, Sigmund-Freud-Str. 25, 53105, Bonn, Germany
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24
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Schmeel F, Simon B, Luetkens J, Träber F, Schmeel L, Schild H, Hadizadeh D. Frühzeitige Überlebenszeitstratifikation durch Diffusionsbildgebung nach SIRT bei kolorektalen Lebermetastasen. ROFO-FORTSCHR RONTG 2016. [DOI: 10.1055/s-0036-1581310] [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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25
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Rabizadeh S, Simon B, Klingemann H, Sims D, Weiss R, Soon-Shiong P. Abstract P2-11-12: Novel protocol combining metronomic nant-paclitaxel with HER2-targeted natural killer cells (innate immunotherapy) for HER2-positive metastatic breast cancer. Cancer Res 2016. [DOI: 10.1158/1538-7445.sabcs15-p2-11-12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background. Natural killer (NK) cells are an important effector cell type for adoptive cancer immunotherapy. Phase 1 clinical trials in patients with advanced cancers demonstrated the safety of unmodified, activated NK-92 cells (aNK), with no evidence of cytokine storm from 18 infusions delivered over 6 months; clinical responses were observed in a subset of patients. Like T cells, NK cells can be engineered to express chimeric antigen receptors (CARs) to enhance their antitumor activity. A stable clonal HER2-specific NK-92 cell line (HER2.taNK) mediated selective and sequential killing of HER2-expressing MDA-MB-453 cells in vitro (Schönfeld. MolTher. 2015;23:330-338). In addition, HER2.taNK cells were enriched in MDA-MB-453/EGFP xenografts and reduced the number of pulmonary metastasis in a renal cell carcinoma model, suggesting that HER2.taNK cells are a promising clinical candidate for use in adoptive cancer immunotherapy. Metronomic (low-dose, continuous) chemotherapy can be more effective than high-dose therapy in patients with advanced breast cancer (Montagna. Canc. Treat. Rev. 2014;40:922-950). Here we evaluate HER2.taNK cells in combination with metronomic nant-paclitaxel (lyophilized polymeric micellar formulation of paclitaxel) in a mouse model of HER2-positive breast cancer to determine the feasibility of a human clinical trial of HER2.taNK in combination with metronomic nant-paclitaxel.
Methods. HER2.taNK cells were generated as described previously (Schönfeld. MolTher. 2015;23:330-338). MDA-MB-453 cells were implanted into the mammary fat pads of female nude mice. When tumors reached 100 mm3, mice were divided into 6 groups of 5 mice and dosed (IV) with saline (10 mL/kg, qd x 15), nant-paclitaxel (2.5-4 mg/kg q2d x 15), γ-irradiated (5 Gy) HER2.taNK cells (1 x 107 cells, days 1, 3, 5, and 8), or nant-paclitaxel + γ-irradiated (5 Gy) HER2.taNK cells–γ-irradiation is a potential safety measure for clinical application and prevents HER2.taNK cell replication while preserving antitumor activity. Tumor size and animal weights were measured every other day post-implantation.
Results: Results obtained 20 days post-treatment are shown in the table. Nant-paclitaxel alone and HER2.taNK alone significantly inhibited tumor growth. The combination of nant-paclitaxel + HER2.taNK led to significant tumor regressions (p<0.05).
Treatment Dose T/C (%) P-ValueSalinenant-paclitaxel5 mg/kg-26.7 P < 0.05 (vs saline) HER2.taNK1 x 107 cells-22.2 P < 0.05 (vs saline)nant-paclitaxel +5 mg/kg +-60.0P < 0.05 (vs nant-paclitaxel)HER2.taNK1 x 107 cellsP < 0.05 (vs HER2.taNK)
Conclusions: Single agent nant-paclitaxel and HER2.taNK were similarly effective at inhibiting tumor growth in this mouse model of HER2+ breast cancer. The combination of nant-paclitaxel + HER2.taNK appeared to be synergistic resulting in tumor regressions and significantly better efficacy vs each agent alone. This study illustrates the potential for combining metronomic low-dose chemotherapy with NK-based immunotherapy in a clinical trial of patients with metastatic breast cancer.
Citation Format: Rabizadeh S, Simon B, Klingemann H, Sims D, Weiss R, Soon-Shiong P. Novel protocol combining metronomic nant-paclitaxel with HER2-targeted natural killer cells (innate immunotherapy) for HER2-positive metastatic breast cancer. [abstract]. In: Proceedings of the Thirty-Eighth Annual CTRC-AACR San Antonio Breast Cancer Symposium: 2015 Dec 8-12; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2016;76(4 Suppl):Abstract nr P2-11-12.
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Affiliation(s)
- S Rabizadeh
- NantCell, Inc, Culver City, CA; NantKwest, Inc, Culver City, CA; Windber Medical Center, Windber, PA
| | - B Simon
- NantCell, Inc, Culver City, CA; NantKwest, Inc, Culver City, CA; Windber Medical Center, Windber, PA
| | - H Klingemann
- NantCell, Inc, Culver City, CA; NantKwest, Inc, Culver City, CA; Windber Medical Center, Windber, PA
| | - D Sims
- NantCell, Inc, Culver City, CA; NantKwest, Inc, Culver City, CA; Windber Medical Center, Windber, PA
| | - R Weiss
- NantCell, Inc, Culver City, CA; NantKwest, Inc, Culver City, CA; Windber Medical Center, Windber, PA
| | - P Soon-Shiong
- NantCell, Inc, Culver City, CA; NantKwest, Inc, Culver City, CA; Windber Medical Center, Windber, PA
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Molinier O, Goupil F, Debieuvre D, Salmon O, Farny M, Ravel A, Boudoumi D, Beynel P, Botrus P, Borrel B, Genety C, Kassem G, Dubos-Arvis C, Simon B, Portel L, Cuguilliere A, Perrichon M, Kasseyet-Kalume B, Vabre J, Grivaux M. 1038 EGFR-mutation improves 1-year survival in patients with adenocarcinoma followed in French general hospitals in 2010. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)30464-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Ezziddin S, Khalaf F, Seidel M, Al Zreiqat A, Wilsmann-Theis D, Simon B, Biersack HJ, Sabet A. Introduction of a metabolic joint asymmetry score derived from conventional bone scintigraphy. A new tool to differentiate psoriatic from rheumatoid arthritis. Nuklearmedizin 2015; 54:183-9. [PMID: 25864944 DOI: 10.3413/nukmed-0698-14-09] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2014] [Accepted: 12/18/2014] [Indexed: 01/28/2023]
Abstract
AIM Clinical differentiation of psoriatic arthritis (PsA) and rheumatoid arthritis (rA) based on the pattern of joint involvement can be difficult; the frequent form of PsA with polyarthritis of the peripheral joints may sometime resemble rA. We investigated a metabolic joint asymmetry score (MJAS), reflecting the overall asymmetric joint involvement on conventional bone scintigraphy, for differentiating PsA from rA in patients presenting with peripheral polyarthritis. PATIENTS, METHODS 106 patients (n = 61, PsA; n = 45, rA) with peripheral polyarthritis (≥ 5 joints) as well as 26 control subjects with no history of chronic joint disorders were analyzed. The intensity of articular 99mTc-MDP uptake in 40 peripheral joint pairs was scored regarding the bilateral difference of each joint based on a scale of 0-2 (no significant, moderate, and marked asymmetry, respectively). The patient's MJAS was defined as the sum of uptake difference scores of all joint pairs. The association of MJAS with the underlying condition (Psoriasis criteria, Revised Criteria of the ACR) was examined. RESULTS 5280 peripheral joint pairs were investigated. There was no significant difference in the total number of involved joints in PsA 15.0 ± 8.2 versus rA 17.5 ± 8.8 patients (p = 0.132), but significantly less involvement in the control group (6.7 ± 5.0, p < 0.001). MJAS was markedly higher in PsA (17.0 ± 9.6) than in rA (4.8 ± 3.9, p < 0.001), and correlated with the total number of involved joints in PsA (r = 0.516, p < 0.001), but not in rA (r = 0.078, p = 0.380). The MJAS disparity between PsA and rA persisted after exclusion of the DIP joints (14.4 ± 7.7 vs. 4.4 ± 3.3; p<0.001). CONCLUSIONS The new reproducible semi-quantification method for the asymmetry of metabolic joint involvement permits differentiation of psoriatic from rheumatoid peripheral arthritis with MJAS being markedly higher in patients with PsA as compared to rA patients. The score may offer an effective complementary tool for characterizing patients with peripheral polyarthritis.
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Affiliation(s)
- S Ezziddin
- Samer Ezziddin, MD, PhD Department of Nuclear Medicine, Saarland University, Kirrberger Str. / Geb 50, 66421 Homburg, Germany, Tel. +49/(0)6841/162 - 22 01, Fax -46 92, E-mail:
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Landwehr J, Fader R, Rumler M, Rommel M, Bauer AJ, Frey L, Simon B, Fodor B, Petrik P, Schiener A, Winter B, Spiecker E. Optical polymers with tunable refractive index for nanoimprint technologies. Nanotechnology 2014; 25:505301. [PMID: 25427225 DOI: 10.1088/0957-4484/25/50/505301] [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] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
In order to realize a versatile high throughput production of micro-optical elements, UV-curable polymer composites containing titanium dioxide nanoparticles were prepared and characterized. The composites are based on an industrial prototype epoxy polymer. Titanium dioxide nanoparticles smaller than 10 nm were synthesized by the nonaqueous sol method and in situ sterically stabilized by three different organic surfactants. The composites exhibit high transparency. Distinct alteration of optical transmission properties for visible light and near IR wavelength range could be avoided by adaption of the stabilizing organic surfactant. Most importantly, the refractive index (RI) of the composites that depends on the fraction of incorporated inorganic nanoparticles could be directly tuned. E.g. the RI at a wavelength of 635 nm of a composite containing 23 wt% titanium dioxide nanoparticles is increased to 1.626, with respect to a value of 1.542 for the pure polymer. Furthermore, it could be demonstrated that the prepared inorganic-organic nanocomposites are well suited for the direct fabrication of low-cost micro-optical elements by nanoimprint lithography. A low response of the optical composite properties to temperature treatment up to 220 °C with a shrinkage of only about 4% ensures its application for integrated micro-optical elements in industrial production.
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Affiliation(s)
- J Landwehr
- Fraunhofer Institute for Integrated Systems and Device Technology (IISB), Erlangen, 91058, Germany
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Picoche C, Le Gendre R, Flye-Sainte-Marie J, Françoise S, Maheux F, Simon B, Gangnery A. Towards the determination of Mytilus edulis food preferences using the dynamic energy budget (DEB) theory. PLoS One 2014; 9:e109796. [PMID: 25340793 PMCID: PMC4207687 DOI: 10.1371/journal.pone.0109796] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [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: 06/18/2013] [Accepted: 09/14/2014] [Indexed: 11/18/2022] Open
Abstract
The blue mussel, Mytilus edulis, is a commercially important species, with production based on both fisheries and aquaculture. Dynamic Energy Budget (DEB) models have been extensively applied to study its energetics but such applications require a deep understanding of its nutrition, from filtration to assimilation. Being filter feeders, mussels show multiple responses to temporal fluctuations in their food and environment, raising questions that can be investigated by modeling. To provide a better insight into mussel–environment interactions, an experiment was conducted in one of the main French growing zones (Utah Beach, Normandy). Mussel growth was monitored monthly for 18 months, with a large number of environmental descriptors measured in parallel. Food proxies such as chlorophyll a, particulate organic carbon and phytoplankton were also sampled, in addition to non-nutritious particles. High-frequency physical data recording (e.g., water temperature, immersion duration) completed the habitat description. Measures revealed an increase in dry flesh mass during the first year, followed by a high mass loss, which could not be completely explained by the DEB model using raw external signals. We propose two methods that reconstruct food from shell length and dry flesh mass variations. The former depends on the inversion of the growth equation while the latter is based on iterative simulations. Assemblages of food proxies are then related to reconstructed food input, with a special focus on plankton species. A characteristic contribution is attributed to these sources to estimate nutritional values for mussels. M. edulis shows no preference between most plankton life history traits. Selection is based on the size of the ingested particles, which is modified by the volume and social behavior of plankton species. This finding reveals the importance of diet diversity and both passive and active selections, and confirms the need to adjust DEB models to different populations and sites.
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Affiliation(s)
- Coralie Picoche
- Laboratoire Environnement Ressources de Normandie, IFREMER, Port en Bessin, France
- * E-mail:
| | - Romain Le Gendre
- Laboratoire Environnement Ressources de Normandie, IFREMER, Port en Bessin, France
| | - Jonathan Flye-Sainte-Marie
- Université de Bretagne Occidentale, Institut Universitaire Européen de la Mer, Laboratoire des sciences de l'Environnement Marin (LEMAR), UMR 6539 CNRS/UBO/IRD/IFREMER, Plouzané, France
| | - Sylvaine Françoise
- Laboratoire Environnement Ressources de Normandie, IFREMER, Port en Bessin, France
| | - Frank Maheux
- Laboratoire Environnement Ressources de Normandie, IFREMER, Port en Bessin, France
| | - Benjamin Simon
- Laboratoire Environnement Ressources de Normandie, IFREMER, Port en Bessin, France
| | - Aline Gangnery
- Laboratoire Environnement Ressources de Normandie, IFREMER, Port en Bessin, France
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Valson AT, Sundaram M, David VG, Deborah MN, Varughese S, Basu G, Mohapatra A, Alexander S, Jose J, Roshan J, Simon B, Rebekah G, Tamilarasi V, Jacob CK. Profile of incident chronic kidney disease related-mineral bone disorders in chronic kidney disease Stage 4 and 5: A hospital based cross-sectional survey. Indian J Nephrol 2014; 24:97-107. [PMID: 24701042 PMCID: PMC3968617 DOI: 10.4103/0971-4065.127897] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
Chronic kidney disease related-mineral bone disorder (CKD-MBD) has been poorly studied in pre-dialysis Indian CKD patients. We aimed to study the clinical, biochemical and extra skeletal manifestations of untreated CKD-MBD in pre-dialysis Stage 4 and 5 CKD patients attending nephrology out-patient clinic at a tertiary care hospital in South India. A hospital based cross-sectional survey including, demographic profile, history of CKD-MBD symptoms, measurement of serum calcium, phosphate, parathyroid hormone, 25 hydroxy vitamin D (25(OH) D) and alkaline phosphatase; lateral abdominal X-rays for abdominal aortic calcification (AAC) and echocardiography for valvular calcification (VC) was carried out. Of the 710 patients surveyed, 45% had no CKD-MBD related symptom. Prevalence of hypocalcemia, hyperphosphatemia, hyperparathyroidism (>150 pg/mL) and 25(OH) D levels <30 ng/mL was 66.3%, 59%, 89.3% and 74.7% respectively. Echocardiography was carried out in 471 patients; 96% of whom had VC (calcification score ≥1). Patients with VC were older and had lower 25(OH) D levels than those without. Lateral abdominal X-rays were obtained in 558 patients, 6.8% of whom were found to have AAC, which was associated with older age. Indian patients with incident CKD-MBD have a high prevalence of hypocalcemia, 25(OH) D deficiency and VC even prior to initiating dialysis while AAC does not appear to be common. The association between 25(OH) D deficiency and VC needs further exploration.
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Affiliation(s)
- A T Valson
- Department of Nephrology, Christian Medical College Hospital, Vellore, Tamil Nadu, India
| | - M Sundaram
- Department of Nephrology, Christian Medical College Hospital, Vellore, Tamil Nadu, India
| | - V G David
- Department of Nephrology, Christian Medical College Hospital, Vellore, Tamil Nadu, India
| | - M N Deborah
- Department of Nephrology, Christian Medical College Hospital, Vellore, Tamil Nadu, India
| | - S Varughese
- Department of Nephrology, Christian Medical College Hospital, Vellore, Tamil Nadu, India
| | - G Basu
- Department of Nephrology, Christian Medical College Hospital, Vellore, Tamil Nadu, India
| | - A Mohapatra
- Department of Nephrology, Christian Medical College Hospital, Vellore, Tamil Nadu, India
| | - S Alexander
- Department of Nephrology, Christian Medical College Hospital, Vellore, Tamil Nadu, India
| | - J Jose
- Department of Cardiology, Christian Medical College Hospital, Vellore, Tamil Nadu, India
| | - J Roshan
- Department of Cardiology, Christian Medical College Hospital, Vellore, Tamil Nadu, India
| | - B Simon
- Department of Radiodiagnosis, Christian Medical College Hospital, Vellore, Tamil Nadu, India
| | - G Rebekah
- Department of Biostatistics, Christian Medical College Hospital, Vellore, Tamil Nadu, India
| | - V Tamilarasi
- Department of Nephrology, Christian Medical College Hospital, Vellore, Tamil Nadu, India
| | - C K Jacob
- Department of Nephrology, Christian Medical College Hospital, Vellore, Tamil Nadu, India
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Klingemann H, Simon B. Cellular immunotherapy with the continuously growing NK-92 cell line as an alternative to donor derived blood NK-cells. Cytotherapy 2014. [DOI: 10.1016/j.jcyt.2014.01.095] [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: 10/25/2022]
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Liu H, Bailleul J, Simon B, Debailleul M, Colicchio B, Haeberlé O. Tomographic diffractive microscopy and multiview profilometry with flexible aberration correction. Appl Opt 2014; 53:748-55. [PMID: 24514193 DOI: 10.1364/ao.53.000748] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2013] [Accepted: 12/20/2013] [Indexed: 05/18/2023]
Abstract
We have developed a tomographic diffractive microscope in reflection, which permits observation of sample surfaces with an improved lateral resolution, compared to a conventional holographic microscope. From the same set of data, high-precision measurements can be performed on the shape of the reflective surface by reconstructing the phase of the diffracted field. Doing so allows for several advantages compared to classical holographic interferometric measurements: improvement in lateral resolution, easier phase unwrapping, reduction of the coherent noise, combined with the high-longitudinal precision provided by interferometric phase measurements. We demonstrate these capabilities by imaging various test samples.
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Leitzen C, Wilhelm-Buchstab T, Garbe S, Lütter C, Müdder T, Simon B, Schild H, Schüller H. Quality of patient positioning during cerebral tomotherapy irradiation using different mask systems. Strahlenther Onkol 2013; 190:382-5. [DOI: 10.1007/s00066-013-0496-x] [Citation(s) in RCA: 4] [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: 07/16/2013] [Accepted: 10/24/2013] [Indexed: 12/25/2022]
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Weseslindtner L, Kerschner H, Steinacher D, Kundi M, Jaksch P, Simon B, Hatos-Agyi L, Scheed A, Klepetko W, Puchhammer-Stöckl E. Association of human cytomegalovirus DNAaemia and specific granzyme B responses in lung transplant recipients. Clin Exp Immunol 2013; 173:438-43. [PMID: 23607435 DOI: 10.1111/cei.12123] [Citation(s) in RCA: 7] [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] [Accepted: 04/15/2013] [Indexed: 12/18/2022] Open
Abstract
In lung transplant recipients (LTRs), human cytomegalovirus (HCMV) DNAaemia could be associated with HCMV disease and reduced allograft survival. In the present study we analysed whether or not HCMV-specific granzyme B (Grz-B) responses indicating CD8(+) T cell cytotoxicity exert an impact on HCMV DNAaemia and relate to specific interferon (IFN)-γ secretion. HCMV-specific Grz-B responses were quantitated by enzyme-linked immunosorbent assay (ELISA) in 70 samples from 39 HCMV seropositive LTRs who were prospectively investigated for HCMV DNA plasma levels and IFN-γ kinetics using a standardized CD8(+) T cell assay (QuantiFERON®-CMV assay). In all LTRs who were protected from HCMV DNAaemia by early and persistent IFN-γ responses, Grz-B responses were also detected. In LTRs who developed episodes of HCMV DNAaemia, the Grz-B responses which were detected prior to viral DNA detection differed significantly in patients who experienced episodes with high (exceeding 1000 copies/ml) and low plasma DNA levels (P = 0·0290, Fisher's exact test). Furthermore, the extent of Grz-B release prior to viral DNAaemia correlated statistically with the detected levels of IFN-γ (P < 0·0001, Spearman's rank test). Of note, simultaneous detection of Grz-B and IFN-γ secretion was associated significantly with protection from high HCMV DNA plasma levels during the subsequent follow-up (P = 0·0057, Fisher's exact test), and this association was stronger than for IFN-γ detection alone. We conclude that, in addition to IFN-γ responses, Grz-B secretion by CD8(+) T cells is essential to control HCMV replication and a simultaneous measurement of IFN-γ and Grz-B could contribute to the immune monitoring of LTRs.
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Affiliation(s)
- L Weseslindtner
- Department of Virology, Medical University of Vienna, Vienna, Austria
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Mozygemba K, Hentschel K, Dehlfing A, Simon B, Gerhardus A, Schmiemann G. Gruppensprechstunden und ihr Einfluss auf das organisationale Verhalten in der Hausarztpraxis. Gesundheitswesen 2013. [DOI: 10.1055/s-0033-1354066] [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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Weseslindtner L, Kerschner H, Steinacher D, Nachbagauer R, Kundi M, Jaksch P, Simon B, Hatos-Agyi L, Scheed A, Klepetko W, Puchhammer-Stöckl E. Prospective analysis of human cytomegalovirus DNAemia and specific CD8+ T cell responses in lung transplant recipients. Am J Transplant 2012; 12:2172-80. [PMID: 22548920 DOI: 10.1111/j.1600-6143.2012.04076.x] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
In lung transplant recipients (LuTRs), human cytomegalovirus (HCMV) DNAemia may be associated with HCMV disease and reduced survival of the allograft. Because T cells are essential for controlling HCMV replication, we investigated in this prospective study whether the kinetics of plasma HCMV DNA loads in LuTRs are associated with HCMV-specific CD8+ T cell responses, which were longitudinally assessed using a standardized assay. Sixty-seven LuTRs were monitored during the first year posttransplantation, with a mean of 17 HCMV DNA PCR quantifications and 11.5 CD8+ T cell tests performed per patient. HCMV-specific CD8+ T cell responses displayed variable kinetics in different patients, differed significantly before the onset of HCMV DNAemia in LuTRs who subsequently experienced episodes of DNAemia with high (>1000 copies/mL) and low plasma DNA levels (p = 0.0046, Fisher's exact test), and were absent before HCMV disease. In HCMV-seropositive LuTRs, high-level DNAemia requiring preemptive therapy occurred more frequently when HCMV-specific CD8+ T cell responses fluctuated, were detected only after HCMV DNA detection, or remained undetectable (p = 0.0392, Fisher's exact test). Thus, our data indicate that HCMV-specific CD8+ T cells influence the magnitude of HCMV DNAemia episodes, and we propose that a standardized measurement of CD8+ T cell immunity might contribute to monitoring the immune status of LuTRs posttransplantation.
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Affiliation(s)
- L Weseslindtner
- Department of Virology, Medical University of Vienna, Vienna, Austria
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Faure N, Diafouka M, Nzounza P, Ekat MH, Mahambou ND, Levasseur G, Tattevin P, Mouala C, Simon B, Mattei JF. [Study of treatment adherence by patients living with HIV in 2009 at the outpatient care and treatment center of Brazzaville, Congo]. Med Trop (Mars) 2011; 71:487-491. [PMID: 22235624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
OBJECTIVES The purpose of this study was to evaluate treatment adherence and its determinants in patients living with HIV followed up at the outpatient care and treatment center in Brazzaville, Congo. METHODS This cross-sectional study included patients who attended the center from July to October 2009. Adherence was evaluated using a self-administered questionnaire, 5 distinct measurement tools, and global adherence index. Correlations between patient characteristics and adherence data were analyzed. RESULTS A total of 214 patients were enrolled in the study. Mean patient age was 42 years. The female-to-male ratio was 2. There were 6 children. Most patients (92.5%) were receiving a first-line antiretroviral regimen; it consisted of a combination of zidovudine, lamivudine and nevirapine in 53.3% of cases. Adherence was estimated at 55.4-86.9% depending on the measurement tool. The global adherence index was significantly higher in patients who achieved their pre-defined life project (OR 4.33, p = 0.04) and in those who spoke lingala (OR 3.99, p = 0.01). After 6 months of antiretroviral therapy, mean weight gain was 4.8 kg; mean increase in CD4 was 104/mm3 (262 versus 158); and viral load was undetectable in 89.4% of patients. CONCLUSION This study in Brazzaville (Congo) confirms that antiretroviral treatment adherence is satisfactory in sub-Saharan Africa. Adherence was mainly correlated with structural factors, e.g. language and life project, and with the patient friendliness of the regime. Most patients had favourable responses based on clinical, immunological, and virological criteria.
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Affiliation(s)
- N Faure
- Département de médecine générale, Université Rennes 1.
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Weseslindtner L, Nachbagauer R, Kundi M, Jaksch P, Kerschner H, Simon B, Hatos-Agyi L, Scheed A, Aberle JH, Klepetko W, Puchhammer-Stöckl E. Human cytomegalovirus infection in lung transplant recipients triggers a CXCL-10 response. Am J Transplant 2011; 11:542-52. [PMID: 21219583 DOI: 10.1111/j.1600-6143.2010.03404.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Human cytomegalovirus (HCMV) causes significant morbidity in lung transplant recipients (LTRs). The clinical effects of HCMV replication are determined partly by a type 1 T-helper cell (Th1) response. Because the chemokine interferon-inducible protein of 10 kilodaltons (IP-10, CXCL-10) induces a Th1 response, we investigated whether HCMV triggers IP-10 in LTRs. The IP-10 concentration and HCMV DNA load were determined in 107 plasma and 46 bronchoalveolar lavage fluid (BALF) samples from 36 LTRs. Initial HCMV detection posttransplantation was significantly associated with increased plasma IP-10, regardless of whether the patients showed HCMV DNAemia (p = 0.001) or HCMV replication only in the allograft (p < 0.0001). In subsequent episodes of HCMV detection, plasma IP-10 increased regardless of whether HCMV was detected in blood (p = 0.0078) or only in BALF (p < 0.0001) and decreased after successful antiviral therapy (p = 0.0005). Furthermore, levels of HCMV DNA and IP-10 correlated statistically (p = 0.0033). Increased IP-10 levels in HCMV-positive BALF samples were significantly associated with severe airflow obstruction, as indicated by a decrease in forced expiratory volume in one second (FEV1). Our data indicate that HCMV replication in LTRs evokes a plasma IP-10 response and that, when an IP-10 response is observed in BALF, it is associated with inflammatory airway obstruction in the allograft.
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Affiliation(s)
- L Weseslindtner
- Department of Virology Institute of Environmental Health Department of Cardiothoracic Surgery, Medical University of Vienna, Vienna, Austria
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Vach H, Häger J, Simon B, Flytzanis C, Walther H. Dynamics of Elementary Processes At Surfaces: Nitric Oxide Scattered From A Graphite Surface. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-51-25] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
ABSTRACTMolecular beam scattering from solid surfaces has long been recognized as a powerful means for investigation of gas-surface reaction dynamics. With the help of the recently developed laser-induced fluorescence and ionization techniques for state-selective detection, one can now measure the angular and velocity distributions of the scattered molecules together with their internal energy distributions. Such measurements fully describe the average energy and momentum exchanges between molecules and surfaces and give thus full information on the dynamics of the interaction. Recently, also the scattering of vibrationally excited NO molecules was investigated. The paper gives a review of new experiments with emphasis on the investigation of the scattering of NO molecules from a pyrographite surface. A simple model using transport properties of the solid is presented which accounts surprisingly well for the observed features.
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Kardous F, Rouleau A, Simon B, Yahiaoui R, Manceau J, Boireau W. Improving immunosensor performances using an acoustic mixer on droplet microarray. Biosens Bioelectron 2010; 26:1666-71. [DOI: 10.1016/j.bios.2010.09.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2010] [Accepted: 09/03/2010] [Indexed: 11/27/2022]
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Skowasch D, Urbach H, Bauriedel G, Hammerstingl C, Gockel A, Simon B, Schild HH, Nickenig G. Silent and apparent cerebral embolism after interventional closure of symptomatic patent foramen ovale. Int J Cardiol 2010; 145:401-402. [PMID: 20444509 DOI: 10.1016/j.ijcard.2010.04.030] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2010] [Accepted: 04/08/2010] [Indexed: 10/19/2022]
Affiliation(s)
- D Skowasch
- Department of Internal Medicine II-Cardiology, University of Bonn, Germany.
| | - H Urbach
- Department of Radiology, University of Bonn, Germany
| | - G Bauriedel
- Department of Internal Medicine II-Cardiology, University of Bonn, Germany
| | - C Hammerstingl
- Department of Internal Medicine II-Cardiology, University of Bonn, Germany
| | - A Gockel
- Department of Internal Medicine II-Cardiology, University of Bonn, Germany
| | - B Simon
- Department of Radiology, University of Bonn, Germany
| | - H H Schild
- Department of Radiology, University of Bonn, Germany
| | - G Nickenig
- Department of Internal Medicine II-Cardiology, University of Bonn, Germany
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Gleizal A, Ferreira S, Lavandier B, Simon B, Béziat JL, Béra JC. Ultrasons pulsés de faible intensité (LIPUS) : effets sur des cultures d’ostéoblastes crâniens de souris. ACTA ACUST UNITED AC 2010; 111:280-5. [DOI: 10.1016/j.stomax.2009.07.013] [Citation(s) in RCA: 7] [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] [Received: 03/10/2009] [Revised: 06/26/2009] [Accepted: 07/06/2009] [Indexed: 10/18/2022]
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Abstract
WE PROVE THAT FOR ANY TRACE CLASS OPERATORS, [FORMULA: see text].
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Affiliation(s)
- E Seiler
- Institute for Advanced Study, Princeton, New Jersey 08540
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45
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Check-Abdoula N, Cruanes L, Aubry P, Simon B, Gaüzère BA. [2007 cholera epidemic in Comoros islands: a step towards endemisation?]. Med Trop (Mars) 2010; 70:307-308. [PMID: 20734608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
In 2007, a cholera epidemic occurred on two of the three islands of the Comoros archipelago: Grande Comore and Moheli. This study is based on data from the files of the 1571 patients admitted to five cholera treatment centers (CTC). The outbreak lasted for ten months. A dramatic peak was observed in July and August corresponding to the traditional wedding season during which hundreds of guests including returning diaspora gather to celebrate "Grand Marriages". Initial stool cultures identified Vibrio cholerae O1, Ogawa serotype. The in-center fatality rate was 1.85%. Poor socio-economical conditions combined with a rapid turnover of health personnel and delayed response of the health authorities could lead to endemisation.
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46
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Simon B. [Gender -- a theme in gastroenterology?]. Z Gastroenterol 2009; 47:1043-1044. [PMID: 19809953 DOI: 10.1055/s-0028-1109808] [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] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
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47
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Debailleul M, Georges V, Simon B, Morin R, Haeberlé O. High-resolution three-dimensional tomographic diffractive microscopy of transparent inorganic and biological samples. Opt Lett 2009; 34:79-81. [PMID: 19109646 DOI: 10.1364/ol.34.000079] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
We have developed a tomographic diffractive microscope, equipped with a fluorescence confocal scanner. We measure experimentally the lateral resolution using an edge method and by comparing tomographic images of the same samples with wide-field and laser scanning confocal microscopy images; a scanning electron microscope image serves as a reference. The experimental resolution is shown to be to about 130 nm, or lambda/(3.5 NA). This instrument also permits one to measure 3D, complex index of refraction distributions, a quantity that is not accessible to conventional microscopes, and we show how this feature may be used to observe KCl crystals, absorption of which is very weak.
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Affiliation(s)
- M Debailleul
- Laboratoire Modélisation, Intelligence, Processus, Systèmes-EA2332, IUT Mulhouse, Mulhouse Cedex, France
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48
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Simon B, Treat V, Marco C, Rosenberg D, Joseph J, Hipszer B, Li Y, Chervoneva I, Padron-Massara L, Jabbour S. A comparison of glycaemic variability in CSII vs. MDI treated type 1 diabetic patients using CGMS. Int J Clin Pract 2008; 62:1858-63. [PMID: 19166434 DOI: 10.1111/j.1742-1241.2008.01932.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
OBJECTIVE To evaluate and compare glucose variability, hypoglycaemic events and daily glycaemic control in well-controlled (HbA1c <or= 7%), type 1 diabetic patients treated with either continuous subcutaneous insulin infusion (CSII) using lispro or multiple daily insulin injection (MDI) using glargine once daily and lispro with meals. RESEARCH DESIGN AND METHODS A total of 16 patients with type 1 diabetes receiving treatment with either CSII (eight patients) or MDI (eight patients), all with HbA1c levels < 7%, wore a continuous glucose monitoring system sensor for 3 days to compare the number, duration, timing and severity of hyperglycaemic and hypoglycaemic episodes. RESULTS There were several more episodes of hyperglycaemic [blood glucose (BG) >or= 180 mg/dl] and hypoglycaemic (BG <or= 60 mg/dl) excursions observed in patients treated with CSII than MDI. Glycaemic exposure over 150 mg/dl was similar between the two groups. Maintenance of near-euglycaemia as determined by the average amount of time spent within the glucose range of 80-140 mg/dl was marginally significantly better for the MDI than for the CSII group. Although the CSII group had significantly more hypoglycaemic episodes below 60 mg/dl, the average duration of hypoglycaemia was not significantly different for the two groups. Similar percentages of nocturnal hypoglycaemia were seen. There were no reported major adverse events throughout the duration of the study. CONCLUSION Well-controlled type 1 diabetic patients treated with MDI had fewer hyperglycaemic and hypoglycaemic excursions than patients treated with CSII.
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Affiliation(s)
- B Simon
- Division of Endocrinology & Diabetes, Drexel University College of Medicine, Philadelphia, PA, USA
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Cadogan MP, Edelen MO, Lorenz KA, Jones M, Yosef J, Hascall T, Simon B, Harker JO, Ferrell B, Saliba D. The Relationship of Reported Pain Severity to Perceived Effect on Function of Nursing Home Residents. J Gerontol A Biol Sci Med Sci 2008; 63:969-73. [DOI: 10.1093/gerona/63.9.969] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Gabel F, Simon B, Nilges M, Petoukhov M, Svergun D, Sattler M. A structure refinement protocol combining NMR residual dipolar couplings and small angle scattering restraints. J Biomol NMR 2008; 41:199-208. [PMID: 18670889 DOI: 10.1007/s10858-008-9258-y] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2008] [Accepted: 05/16/2008] [Indexed: 05/26/2023]
Abstract
We present the implementation of a target function based on Small Angle Scattering data (Gabel et al. Eur Biophys J 35(4):313-327, 2006) into the Crystallography and NMR Systems (CNS) and demonstrate its utility in NMR structure calculations by simultaneous application of small angle scattering (SAS) and residual dipolar coupling (RDC) restraints. The efficiency and stability of the approach are demonstrated by reconstructing the structure of a two domain region of the 31 kDa nuclear export factor TAP (TIP-associated protein). Starting with the high resolution X-ray structures of the two individual TAP domains, the translational and orientational domain arrangement is refined simultaneously. We tested the stability of the protocol against variations of the SAS target parameters and the number of RDCs and their uncertainties. The activation of SAS restraints results in an improved translational clustering of the domain positions and lifts part of the fourfold degeneracy of their orientations (associated with a single alignment tensor). The resulting ensemble of structures reflects the conformational space that is consistent with the experimental SAS and RDC data. The SAS target function is computationally very efficient. SAS restraints can be activated at different levels of precision and only a limited SAS angular range is required. When combined with additional data from chemical shift perturbation, paramagnetic relaxation enhancement or mutational analysis the SAS refinement is an efficient approach for defining the topology of multi-domain and/or multimeric biomolecular complexes in solution based on available high resolution structures (NMR or X-ray) of the individual domains.
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Affiliation(s)
- F Gabel
- Structural and Computational Biology Unit, EMBL, Meyerhofstrasse 1, Heidelberg, Germany
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