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5. Neurons with larval synaptic targets pioneer the later nervous system in the annelid Malacoceros fuliginosus.

Author

Seybold, Anna, Kumar, Suman, Tumu, Sharat Chandra, and Hausen, Harald

Subjects
NEURAL circuitry, NERVOUS system, INNERVATION, ELECTRON microscopy, MARINE organisms
Abstract

Comparative studies on the development of nervous systems have a significant impact on understanding animal nervous system evolution. Nevertheless, an important question is to what degree neuronal structures, which play an important role in early stages, become part of the adult nervous system or are relevant for its formation. This is likely in many direct developers, but it is not the case in forms with catastrophic metamorphosis. It is not clear in many forms with gradual metamorphosis. This introduces uncertainty in tracing the evolution of nervous systems and of larval forms. One of the prominent larval characteristics of numerous planktonic marine organisms is the epidermal ciliation used for swimming and steering, which disappears during metamorphosis. Therefore, the neuronal elements controlling the ciliary beating are often assumed to vanish with the cilia and regarded as purely larval specializations. With volume EM, we followed the neuronal targets of the very first pioneer neurons at the apical and posterior ends of the larva of the annelid Malacoceros fuliginosus. We observed that all of these pioneers appear to have a dual function. Although they are laying the paths for the later adult nervous system, they also make synaptic contact with the main ciliated ring of the larva. We propose that the formation of the later adult nervous system and the innervation of the larval locomotory organ are indeed closely linked to each other. This has implications for understanding the early nervous system development of marine larvae and for existing hypotheses on nervous system evolution. [ABSTRACT FROM AUTHOR]

Published
2025
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9. Infectious Agents in Bovine Red Meat and Milk and Their Potential Role in Cancer and Other Chronic Diseases

Author

zur Hausen, Harald, Bund, Timo, de Villiers, Ethel-Michele, Compans, Richard W, Series Editor, Malissen, Bernard, Series Editor, Aktories, Klaus, Series Editor, Rappuoli, Rino, Series Editor, Galan, Jorge E, Series Editor, Ahmed, Rafi, Series Editor, Palme, Klaus, Series Editor, Casadevall, Arturo, Series Editor, Garcia-Sastre, Adolfo, Series Editor, Iwasaki, Akiko, Series Editor, Akira, Shizuo, Series Editor, Hunter, Eric, editor, and Bister, Klaus, editor

Published
2017
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10. Early evolution of radial glial cells in Bilateria

Author

Helm, Conrad, Karl, Anett, Beckers, Patrick, Kaul-Strehlow, Sabrina, Ulbricht, Elke, Kourtesis, Ioannis, Kuhrt, Heidrun, Hausen, Harald, Bartolomaeus, Thomas, Reichenbach, Andreas, and Bleidorn, Christoph

Published
2017

12. The European Cancer Patient’s Bill of Rights, update and implementation 2016

Author

Lawler, Mark, Banks, Ian, Law, Kate, Albreht, Tit, Armand, Jean-Pierre, Barbacid, Mariano, Barzach, Michèle, Bergh, Jonas, Cameron, David, Conte, Pierfranco, de Braud, Filippo, de Gramont, Aimery, De Lorenzo, Francesco, Diehl, Volker, Diler, Sarper, Erdem, Sema, Geissler, Jan, Gore-Booth, Jola, Henning, Geoffrey, Højgaard, Liselotte, Horgan, Denis, Jassem, Jacek, Johnson, Peter, Kaasa, Stein, Kapitein, Peter, Karjalainen, Sakari, Kelly, Joan, Kienesberger, Anita, La Vecchia, Carlo, Lacombe, Denis, Lindahl, Tomas, Löwenberg, Bob, Luzzatto, Lucio, Malby, Rebecca, Mastris, Ken, Meunier, Françoise, Murphy, Martin, Naredi, Peter, Nurse, Paul, Oliver, Kathy, Pearce, Jonathan, Pelouchov, Jana, Piccart, Martine, Pinedo, Bob, Spurrier-Bernard, Gilly, Sullivan, Richard, Tabernero, Josep, Van de Velde, Cornelis, van Herk, Bert, Vedsted, Peter, Waldmann, Anita, Weller, David, Wilking, Nils, Wilson, Roger, Yared, Wendy, Zielinski, Christoph, zur Hausen, Harald, Le Chevalier, Thierry, Johnston, Patrick, and Selby, Peter

Published
2016
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28. Structural expression of bovine milk and meat factors in tissues of colorectal, lung and pancreatic cancer patients

Author

Nikitina, Ekaterina, primary, Alikhanyan, Kristina, additional, Neßling, Michelle, additional, Richter, Karsten, additional, Kaden, Sylvia, additional, Ernst, Claudia, additional, Seitz, Stefan, additional, Chuprikova, Liubov, additional, Häfele, Lisa, additional, Gunst, Karin, additional, Rahbari, Nuh, additional, Birgin, Emrullah, additional, Rasbach, Erik, additional, Rahbari, Mohammad, additional, Brobeil, Alexander, additional, Schenk, Miriam, additional, Büchler, Markus, additional, de Villiers, Ethel‐Michele, additional, Bund, Timo, additional, and zur Hausen, Harald, additional

Published
2022
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32. Ansteckung

Author

Stamatiadis-Smidt, Hilke, zur Hausen, Harald, Stamatiadis-Smidt, Hilke, editor, and zur Hausen, Harald, editor

Published
1998
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34. Tumormarker

Author

Stamatiadis-Smidt, Hilke, zur Hausen, Harald, Stamatiadis-Smidt, Hilke, editor, and zur Hausen, Harald, editor

Published
1998
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36. Viren

Author

Stamatiadis-Smidt, Hilke, zur Hausen, Harald, Stamatiadis-Smidt, Hilke, editor, and zur Hausen, Harald, editor

Published
1998
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37. Umweltgifte

Author

Stamatiadis-Smidt, Hilke, zur Hausen, Harald, Stamatiadis-Smidt, Hilke, editor, and zur Hausen, Harald, editor

Published
1998
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39. Stoma

Author

Stamatiadis-Smidt, Hilke, zur Hausen, Harald, Stamatiadis-Smidt, Hilke, editor, and zur Hausen, Harald, editor

Published
1998
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45. Prostatakrebs

Author

Stamatiadis-Smidt, Hilke, zur Hausen, Harald, Stamatiadis-Smidt, Hilke, editor, and zur Hausen, Harald, editor

Published
1998
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49. Mistel

Author

Stamatiadis-Smidt, Hilke, zur Hausen, Harald, Stamatiadis-Smidt, Hilke, editor, and zur Hausen, Harald, editor

Published
1998
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