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2. Campylobacter jejuni capsular genotypes are related to Guillain–Barré syndrome

Author

Heikema, A P, Islam, Z, Horst-Kreft, D, Huizinga, R, Jacobs, B C, Wagenaar, J A, Poly, F, Guerry, P, van Belkum, A, Parker, C T, Endtz, H P, dI&I I&I-4, LS Klinisch Onderzoek Wagenaar, Infection & Immunity, dI&I I&I-4, LS Klinisch Onderzoek Wagenaar, Infection & Immunity, Medical Microbiology & Infectious Diseases, and Neurology

Subjects
Microbiology (medical), Lipo-oligosaccharide, Genotype, Multilocus sequence typing, multilocus sequence typing, Guillain-Barre Syndrome, Guillain–Barré syndrome, Campylobacter jejuni, Virulence factor, Enteritis, Microbiology, SDG 3 - Good Health and Well-being, Campylobacter Jejuni Infection, Campylobacter Infections, medicine, Humans, Capsular genotype, Genotyping, Bacterial Capsules, Netherlands, Host Pathogen Interaction & Diagnostics, Bangladesh, Guillain-Barre syndrome, biology, Bacteriologie, Bacteriology, Bacteriology, Host Pathogen Interaction & Diagnostics, General Medicine, Guillain-Barré syndrome, bacterial infections and mycoses, medicine.disease, biology.organism_classification, Virology, lipo-oligosaccharide, Host Pathogen Interactie & Diagnostiek, Infectious Diseases, Bacteriologie, Host Pathogen Interactie & Diagnostiek, Dierecologie, Animal Ecology, capsular genotype
Abstract

In about one in a thousand cases, a Campylobacter jejuni infection results in the severe polyneuropathy Guillain-Barre syndrome (GBS). It is established that sialylated lipo-oligosaccharides (LOS) of C. jejuni are a crucial virulence factor in GBS development. Frequent detection of C. jejuni with sialylated LOS in stools derived from patients with uncomplicated enteritis implies that additional bacterial factors should be involved. To assess whether the polysaccharide capsule is a marker for GBS, the capsular genotypes of two geographically distinct GBS-associated C. jejuni strain collections and an uncomplicated enteritis control collection were determined. Capsular genotyping of C. jejuni strains from the Netherlands revealed that three capsular genotypes, HS1/44c, HS2 and HS4c, were dominant in GBS-associated strains and capsular types HS1/44c and HS4c were significantly associated with GBS (p 0.05 and p 0.01, respectively) when compared with uncomplicated enteritis. In a GBS-associated strain collection from Bangladesh, capsular types HS23/36c, HS19 and HS41 were most prevalent and the capsular types HS19 and HS41 were associated with GBS (p 0.008 and p 0.02, respectively). Next, specific combinations of the LOS class and capsular genotypes were identified that were related to the occurrence of GBS. Multilocus sequence typing revealed restricted genetic diversity for strain populations with the capsular types HS2, HS19 and HS41. We conclude that capsular types HS1/44c, HS2, HS4c, HS19, HS23/36c and HS41 are markers for GBS. Besides a crucial role for sialylated LOS of C. jejuni in GBS pathogenesis, the identified capsules may contribute to GBS susceptibility. Clinical Microbiology and Infection (C) 2015 European Society of Clinical Microbiology and Infectious Diseases. Published by Elsevier Ltd. All rights reserved.

Published
2015

3. Quantum Logic Using Linear Optics

Author

Franson, J. D., Jacobs, B. C., and Pittman, T. B.

Subjects
Quantum Physics, ComputerSystemsOrganization_MISCELLANEOUS, TheoryofComputation_GENERAL, FOS: Physical sciences, Quantum Physics (quant-ph)
Abstract

In order for quantum communications systems to become widely used, it will probably be necessary to develop quantum repeaters that can extend the range of quantum key distribution systems and correct for errors in the transmission of quantum information. Quantum logic gates based on linear optical techniques appear to be a promising approach for the development of quantum repeaters, and they may have applications in quantum computing as well. Here we describe the basic principles of logic gates based on linear optics, along with the results from several experimental demonstrations of devices of this kind. A prototype source of single photons and a quantum memory device for photons are also discussed. These devices can be combined with a four-qubit encoding to implement a quantum repeater., Comment: 31 pages, 15 figures

Published
2004
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4. Evidence based guidelines. Diagnosis and management of guillain-barré syndrome in ten steps.,Guía basada en la evidencia. Diagnóstico y manejo del síndrome de guillain-barré en diez pasos

Author

Leonhard, S. E., Mandarakas, M. R., Gondim, F. D. A. A., Kathleen Bateman, Ferreira, M. L. B., Cornblath, D. R., Doorn, P. A., Dourado, M. E., Hughes, R. A. C., Islam, B., Kusunoki, S., Pardo, C. A., Reisin, R., Sejvar, J. J., Shahrizaila, N., Soares, C., Umapathi, T., Wang, Y., Yiu, E. M., Willison, H. J., and Jacobs, B. C.

5. Electrodiagnosis of Guillain-Barre syndrome in the International GBS Outcome Study: Differences in methods and reference values

Author

Samuel Arends, Judith Drenthen, Peter van den Bergh, Hessel Franssen, Robert D.M. Hadden, Badrul Islam, Satoshi Kuwabara, Ricardo C. Reisin, Nortina Shahrizaila, Hiroshi Amino, Giovanni Antonini, Shahram Attarian, Claudia Balducci, Fabio Barroso, Tulio Bertorini, Davide Binda, Thomas H. Brannagan, Jan Buermann, Carlos Casasnovas, Guido Cavaletti, Chi-Chao Chao, Mazen M. Dimachkie, Ernesto A. Fulgenzi, Giuliana Galassi, Gerardo Gutiérrez Gutiérrez, Thomas Harbo, Hans-Peter Hartung, Sung-Tsang Hsieh, Lynette Kiers, Helmar C. Lehmann, Fiore Manganelli, Girolama A. Marfia, Giorgia Mataluni, Julio Pardo, Yann Péréon, Yusuf A. Rajabally, Lucio Santoro, Yukari Sekiguchi, Beth Stein, Mark Stettner, Antonino Uncini, Christine Verboon, Camiel Verhamme, Michal Vytopil, Waqar Waheed, Min Wang, Sasha Zivkovic, Bart C. Jacobs, David R. Cornblath, J.M. Addington, S. Ajroud-Driss, H. Andersen, G. Antonini, S. Attarian, U.A. Badrising, G. Balloy, F.A. Barroso, K. Bateman, I.R. Bella, L. Benedetti, P. van den Bergh, T.E. Bertorini, R. Bhavaraju-Sanka, M. Bianco, T.H. Brannagan, C. Briani, null Buerrmann, M. Busby, S. Butterworth, C. Casasnovas, G. Cavaletti, C.C. Chao, G. Chavada, S. Chen, K.G. Claeys, M.E. Conti, D.R. Cornblath, J.S. Cosgrove, M.C. Dalakas, P. van Damme, E. Dardiotis, A. Davidson, M.A. Derejko, G.W. van Dijk, M.M. Dimachkie, P.A. van Doorn, C. Dornonville de la Cour, A. Echaniz-Laguna, F. Eftimov, C.G. Faber, R. Fazio, T.E. Feasby, C. Fokke, T. Fujioka, E.A. Fulgenzi, G. Galassi, T. Garcia-Sobrino, M.P.J. Garssen, C.J. Gijsbers, J.M. Gilchrist, H.J. Gilhuis, J.M. Goldstein, K.C. Gorson, N.A. Goyal, V. Granit, S.T.E. Grisanti, null Gutiérrez-Gutiérrez, L. Gutmann, R.D.M. Hadden, T. Harbo, H.P. Hartung, J.V. Holbech, J.K.L. Holt, S.T. Hsieh, M. Htut, R.A.C. Hughes, I. Illa, B. Islam, Z. Islam, B.C. Jacobs, J. Fehmi, K. Jellema, I. Jerico Pascual, K. Kaida, S. Karafiath, H.D. Katzberg, M.A. Khoshnoodi, L. Kiers, K. Kimpinski, R.P. Kleyweg, N. Kokubun, N.A. Kolb, R. van Koningsveld, A.J. van der Kooi, J.C.H.M. Kramers, K. Kuitwaard, S. Kusunoki, S. Kuwabara, J.Y. Kwan, S.S. Ladha, L. Landschoff Lassen, V. Lawson, H.C. Lehmann, E. Lee Pan, M.P.T. Lunn, H. Manji, G.A. Marfia, C. Márquez Infante, L. Martin-Aguilar, E. Martinez Hernandez, G. Mataluni, M. Mattiazi, C.J. McDermott, G.D. Meekins, J.A.L. Miller, Q.D. Mohammad, M.S. Monges, G. Moris de la Tassa, C. Nascimbene, F.J. Navacerrada-Barrero, E. Nobile-Orazio, R.J. Nowak, P.J. Orizaola, M. Osei-Bonsu, A.M. Pardal, J. Pardo, R.M. Pascuzzi, Y. Péréon, M.T. Pulley, L. Querol, S.W. Reddel, T. van der Ree, R.C. Reisin, S. Rinaldi, R.C. Roberts, I. Rojas-Marcos, null Rudnicki, G.M. Sachs, J.P.A. Samijn, L. Santoro, A. Schenone, M.J. Sedano Tous, N. Shahrizaila, K.A. Sheikh, N.J. Silvestri, S.H. Sindrup, C.L. Sommer, B. Stein, Y. Song, A.M. Stino, H. Tankisi, M.R. Tannemaat, P. Twydell, P.V. Vélez-Santamaria, J.D. Varrato, F.H. Vermeij, L.H. Visser, M.V. Vytopil, W. Waheed, C. Walgaard, Y.Z. Wang, H.J. Willison, P.W. Wirtz, Y. Yamagishi, L. Zhou, S.A. Zivkovic, Neurology, ANS - Neuroinfection & -inflammation, EURO-NMD, Immunology, Arends, S., Drenthen, J., van den Bergh, P., Franssen, H., Hadden, R. D. M., Islam, B., Kuwabara, S., Reisin, R. C., Shahrizaila, N., Amino, H., Antonini, G., Attarian, S., Balducci, C., Barroso, F., Bertorini, T., Binda, D., Brannagan, T. H., Buermann, J., Casasnovas, C., Cavaletti, G., Chao, C. -C., Dimachkie, M. M., Fulgenzi, E. A., Galassi, G., Gutierrez Gutierrez, G., Harbo, T., Hartung, H. -P., Hsieh, S. -T., Kiers, L., Lehmann, H. C., Manganelli, F., Marfia, G. A., Mataluni, G., Pardo, J., Pereon, Y., Rajabally, Y. A., Santoro, L., Sekiguchi, Y., Stein, B., Stettner, M., Uncini, A., Verboon, C., Verhamme, C., Vytopil, M., Waheed, W., Wang, M., Zivkovic, S., Jacobs, B. C., Cornblath, D. R., Arends, S, Drenthen, J, van den Bergh, P, Franssen, H, Hadden, R, Islam, B, Kuwabara, S, Reisin, R, Shahrizaila, N, Amino, H, Antonini, G, Attarian, S, Balducci, C, Barroso, F, Bertorini, T, Binda, D, Brannagan, T, Buermann, J, Casasnovas, C, Cavaletti, G, Chao, C, Dimachkie, M, Fulgenzi, E, Galassi, G, Gutierrez Gutierrez, G, Harbo, T, Hartung, H, Hsieh, S, Kiers, L, Lehmann, H, Manganelli, F, Marfia, G, Mataluni, G, Pardo, J, Pereon, Y, Rajabally, Y, Santoro, L, Sekiguchi, Y, Stein, B, Stettner, M, Uncini, A, Verboon, C, Verhamme, C, Vytopil, M, Waheed, W, Wang, M, Zivkovic, S, Jacobs, B, Cornblath, D, UCL - (SLuc) Centre de référence neuromusculaire, and UCL - (SLuc) Service de neurologie

Subjects
Nerve conduction studie, Electrodiagnòstic, Malalties autoimmunitàries, Electromyography, Electrodiagnosis, Autoimmune diseases, Neural Conduction, Medizin, Settore MED/26, Guillain-Barre Syndrome, AIDP, AMSAN, Sensory Systems, Reference values, Clinical trials, AMAN, Neurology, Physiology (medical), Outcome Assessment, Health Care, Humans, Nerve conduction studies, Neurology (clinical), Reference value, Assaigs clínics
Abstract

Objective: To describe the heterogeneity of electrodiagnostic (EDx) studies in Guillain-Barre syndrome (GBS) patients collected as part of the International GBS Outcome Study (IGOS). Methods: Prospectively collected clinical and EDx data were available in 957 IGOS patients from 115 centers. Only the first EDx study was included in the current analysis. Results: Median timing of the EDx study was 7 days (interquartile range 4-11) from symptom onset. Methodology varied between centers, countries and regions. Reference values from the responding 103 centers were derived locally in 49%, from publications in 37% and from a combination of these in the remaining 15%. Amplitude measurement in the EDx studies (baseline-to-peak or peak-to-peak) differed from the way this was done in the reference values, in 22% of motor and 39% of sensory conduction. There was marked variability in both motor and sensory reference values, although only a few outliers accounted for this. Conclusions: Our study showed extensive variation in the clinical practice of EDx in GBS patients among IGOS centers across the regions. Significance: Besides EDx variation in GBS patients participating in IGOS, this diversity is likely to be present in other neuromuscular disorders and centers. This underlines the need for standardization of EDx in future multinational GBS studies.(c) 2022 International Federation of Clinical Neurophysiology. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).

Published
2022

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