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4. Clinical and genetic characteristics of late-onset Huntington's disease

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Oosterloo, Mayke, Bijlsma, Emilia K., van Kuijk, Sander MJ., Minkels, Floor, de Die-Smulders, Christine EM., Bachoud-Lévi, Anne-Catherine, Bentivoglio, Anna-Rita, Biunno, Ida, Bonelli, Raphael M., Bronzova, Juliana, Burgunder, Jean-Marc, Dunnett, Stephen B., Ferreira, Joaquim J., Frich, Jan, Giuliano, Joe, Handley, Olivia J., Heiberg, Arvid, Illarioshkin, Sergey, Illmann, Torsten, Klempir, Jiri, Landwehrmeyer, G. Bernhard, Levey, Jamie, Mclean, Tim, Nielsen, Jørgen E., Koivisto, Susana Pro, Päivärinta, Markku, Pålhagen, Sven, Quarrell, Oliver, Ramos-Arroyo, Maria, Roos, Raymund A. C., Saft, Carsten, Sebastián, Ana Rojo, Tabrizi, Sarah J., Vandenberghe, Wim, Verellen-Dumoulin, Christine, Uhrova, Tereza, Wahlström+, Jan, Zaremba, Jacek (formerly Rödig, Verena, Baake, Barth, Katrin, Garde, Monica Bascuñana, Becanovic, Kristina, Bernard, Tomáš, Betz, Sabrina, Bos, Reineke, Come, Adrien, Guedes, Leonor Correia, Callaghan, Jenny, Capodarca, Selene, Charpentier, Sébastien, Vieira da Silva, Wildson, Di Renzo, Martina, Ecker, Daniel, Finisterra, Ana Maria, Fullam, Ruth, Genoves, Camille, Gilling, Mette, Horta, Andrea, Hvalstedt, Carina, Held, Christine, Hussain, Hasina, Koppers, Kerstin, Lamanna, Claudia, Laurà, Matilde, Descals, Asunción Martínez, Martinez-Horta, Saul, Mestre, Tiago, Minster, Sara, Monza, Daniela, Münkel, Kristina, Mütze, Lisanne, Oehmen, Martin, Padieu, Helene, Paterski, Laurent, Peppa, Nadia, Rindal, Beate, Rogers, Dawn, Røren (formerly Heinonen), Niini, Salgueiro, Ana, Šašinková, Pavla, Seliverstov, Yury, Taylor, Catherine, Timewell, Erika, Townhill, Jenny, Cubillo, Patricia Trigo, van Walsem, Marleen R., Witjes-Ané, Marie-Noelle, Witkowski, Grzegorz, Wright, Abigail, Yudina, Elizaveta, Zielonka, Daniel, Zielonka, Eugeniusz, Zinzi, Paola, Hecht, Karen, Herranhof, Brigitte, Holl (formerly Hödl), Anna, Kapfhammer, Hans-Peter, Koppitz, Michael, Lilek, Sabine, Magnet, Markus, Müller, Nicole, Otti, Daniela, Painold, Annamaria, Reisinger, Karin, Scheibl, Monika, Schöggl, Helmut, Ullah, Jasmin, Braunwarth, Eva-Maria, Brugger, Florian, Buratti, Lisa, Hametner, Eva-Maria, Hepperger, Caroline, Holas, Christiane, Hotter, Anna, Hussl, Anna, Larcher, Barbara, Mahlknecht, Philipp, Müller, Christoph, Pinter, Bernadette, Poewe, Werner, Reiter, Eva-Magdalena, Seppi, Klaus, Sprenger, Fabienne, Wenning, Gregor, Ladurner, Gunther, Lilek, Stefan, Sinadinosa, Daniela, Staffen, Wolfgang, Walleczek, Anna Maria, Linder, Christoph, Pirker, Walter, Liessens, Dirk, Calmeyn, Godelinde, Somers, Nele, Delvaux, Isabelle, Boogaerts, Andrea, Flamez, Anja, de Raedt, Sylvie, Alaerts, Nick, Slama, Hichem, Supiot, Frédéric, Constant, Eric, Gillardin, Anne-Françoise, Léonard, Marie-Claude, van de Wyngaerde, Françoise, Dupuis, Michel, Minet, Cécile, Ribaï, Pascale, Van Paemel, Dominique, van Reijen, Dimphna, Weckx, Petra, Kaiserova, Michaela, Šenkárová, Zuzana, Bezdíček, Ondřej, Klempíř, Jiří, Klempířová, Olga, Majerová-Ibarburu, Veronika, Nikolai, Tomáš, Roth, Jan, Stárková, Irena, Madsen, Louise Hasselstrøm, Møller, Anette Torvin, Hjermind, Lena, Jacobsen, Oda, Larsen, Ida Unmack, Lindquist, Suzanne, Nielsen, Jørgen, Regeur, Lisbeth, Roos, Peter, Stockholm, Jette, Vangsted-Hansen, Christina, Vinther-Jensen, Tua, Lolk, Annette, Lundsgaard, Marianne, Wermuth, Lene, Andersson, Christian, Nyberg, Clara, Sundblom, Jimmy, Peippo, Maarit, Sipponen, Marjatta, Bruun, Anu, Hartikainen, Paivi, Mäkipää, Seija, Ollokainen, Mari, Åman, Jaana, Kärppä, Mikko, Ignatius, Jaakko, Jääskeläinen, Outi, Kajula, Outi, Moilanen, Jukka, Mustonen, Aki, Santala, Maire, Eklund, Pia, Hiivola, Heli, Hyppönen, Hannele, Martikainen, Kirsti, Ojala, Marjut, Tähkäpää, Sirkku, Tuuha, Katri, Allain, Philippe, Bonneau, Dominique, Bost, Marie, Gohier, Bénédicte, Guérid, Marie-Anne, Olivier, Audrey, Prouzet, Julie, Prundean, Adriana, Scherer-Gagou, Clarisse, Verny, Christophe, Babiloni, Blandine, Bled, Déborah, Debruxelles, Sabrina, Duché, Charlotte, Fraisse, Sonia, Goizet, Cyril, Jameau, Laetitia, Lafoucrière, Danielle, Spampinato, Umberto, Couttier, Julien, Debilly, Bérengère, Delaigue, Christine, Derost, Philippe, Durif, Franck, Germain, Véronique, Legendre, Perrine, Loiseau, Sylvie, Marques, Ana, Ulla, Miguel, Vidal, Tiphaine, Badei, Farideh, Boissé, Marie-Françoise, Boudali, Lotfi, Cleret de Langavant, Laurent, Lemoine, Laurie, Morgado, Graca, Youssov, Katia, Annic, Agnès, Barthélémy, Recka, De Bruycker, Christelle, Cabaret, Maryline, Carette, Anne-Sophie, Carrière, Nicolas, Decorte, Eric, Defebvre, Luc, Delliaux, Marie, Delval, Arnaud, Depelchin, Alizé, Destee, Alain, Dewulf-Pasz, Nelly, Dondaine, Thibaut, Dugauquier, Florence, Dujardin, Kathy, Hopes, Lucie, Krystkowiak, Pierre, Lemaire, Marie-Hélène, Manouvrier, Sylvie, Mutez, Eugénie, Peter, Mireille, Plomhause, Lucie, Sablonnière, Bernard, Simonin, Clémence, Tard, Céline, Thibault-Tanchou, Stéphanie, Vuillaume, Isabelle, Bellonet, Marcellin, Blin, Stéphanie, Chen, Simone, Masmoudi, Kamel, Morin, Gilles, Roussel, Martine, Tir, Mélissa, Schüler, Béatrice, Wannepain, Sandrine, Zouitina, Yassine, Azulay, Jean-Philippe, Delfini, Marie, Eusebio, Alexandre, Fluchere, Frédérique, Guenam, Aicha, Mundler, Laura, Nguyen, Karine, Benaich, Sandra, Brice, Alexis, Boster, Sarah, Charles, Perrine, Durr, Alexandra, Ewenczyk, Claire, Francisque, Hélène, Jauffret, Céline, Justo, Damian, Kassar, Abdulrahman, Klebe, Stephan, Lesne, Fabien, Milani, Paolo, Monin, Marie-Lorraine, Monnier, Tiffany, Roze, Emmanuel, Tataru, Alina, Tchikviladzé, Maya, Bioux, Sandrine, Bliaux, Evangeline, Girard, Carole, Guyant-Maréchal, Lucie, Hannequin, Didier, Hannier, Véronique, Jourdain, Séverine, Maltête, David, Pouliquen, Dorothée, Anheim, Mathieu, Barun, Nadia, Lagha-Boukbiza, Ouhaid, Longato, Nadine, Marcel, Christophe, Phillipps, Clélie, Rudolf, Gabrielle, Steinmetz, Gisèle, Tranchant, Christine, Wagner, Caroline, Zimmermann, Marie-Agathe, Blondeau, Leily, Calvas, Fabienne, Cheriet, Samia, Delabaere, Helène, Demonet, Jean-François, Marquine, Laurent, Pariente, Jérémie, Pierre, Michèle, Pomies, Elsa, Rolland, Sandrine, Souyris, Corinne, Kosinski, Christoph Michael, Milkereit, Eva, Probst, Daniela, Reetz, Kathrin, Sass, Christian, Schiefer, Johannes, Schlangen, Christiane, Werner, Cornelius J., Beuth, Markus, Gelderblom, Harald, Priller, Josef, Prüß, Harald, Spruth, Eike, Thiel, Silvia, Andrich, Jürgen, Ellrichmann, Gisa, Herrmann, Lennard, Hoffmann, Rainer, Kaminski, Barbara, Kraus, Peter, Stamm, Christiane, Ganos, Christos, Stubbe, Lars, Tadic, Vera, Tübing, Jennifer, Lange, Herwig, Bosredon, Cecile, Hunger, Ulrike, Löhle, Matthias, Maass, Antonia, Ossig, Christiana, Schmidt, Simone, Storch, Alexander, Wolz, Annett, Wolz, Martin, Kohl, Zacharias, Kozay, Christina, Winkler, Jürgen, Bergmann, Ulrike, Böringer, Regina, Capetian, Philipp, Kammel, Gerit, Lambeck, Johann, Mächtel, Miriam, Meier, Simone, Rijntjes, Michel, Zucker, Birgit, Boelmans, Kai, Goerendt, Ines, Heinicke, Walburgis, Hidding, Ute, Lewerenz, Jan, Münchau, Alexander, Orth, Michael, Schmalfeld, Jenny, Zittel, Simone, Diercks, Gabriele, Dressler, Dirk, Francis, Flverly, Gayde-Stephan, Sabine, Gorzolla, Heike, Kramer, Bianca, Minschke, Rebecca, Schrader, Christoph, Tacik, Pawel, Ribbat+, Michael, Longinus, Bernhard, Möller, Carsten, Bürk, Katrin, Lüsebrink, Antje, Mühlau, Mark, Peinemann, Alexander, Städtler, Michael, Weindl, Adolf, Winkelmann, Juliane, Ziegler, Cornelia, Bechtel, Natalie, Beckmann, Heike, Bohlen, Stefan, Göpfert, Nicole, Hölzner, Eva, Reilmann, Ralf, Rohm, Stefanie, Rumpf, Silke, Schepers, Sigrun, Weber, Nathalia, Bachmeier, Michael, Dose, Matthias, Hofstetter, Nina, Marquard, Ralf, Mühlbäck, Alzbeta, Buck, Andrea, Connemann, Julia, Geitner, Carolin, Kesse, Andrea, Landwehrmeyer, Bernhard, Lezius, Franziska, Nepper, Solveig, Niess, Anke, Schneider, Ariane, Schwenk, Daniela, Süssmuth, Sigurd, Trautmann, Sonja, Vogel, Melanie, Weydt, Patrick, Musacchio, Thomas, Leypold, Christine, Nöth, Kerstin, Cormio, Claudia, Difruscolo, Olimpia, Franco, Giovanni, Nuzzi, Angela, Sciruicchio, Vittorio, Serpino, Claudia, de Tommaso, Marina, Calandra-Buonaura, Giovanna, Capellari, Sabina, Cortelli, Pietro, Gallassi, Roberto, Poda, Roberto, Scaglione, Cesa, Agosti, Chiara, Barlati, Sergio, Compostella, Silvia, Marchina, Eleonora, Padovani, Alessando, Figorilli, Michela, Marrosu, Francesco, Muroni, Antonella, Piras, Valeria, Vacca, Melisa, Bertini, Elisabetta, Bartoli, Caterina, Fortunato, Fernanda, Ghelli, Elena, Ginestroni, Andrea, Mechi, Claudia, Paganini, Marco, Piacentini, Silvia, Pradella, Silvia, Romoli, Anna Maria, Sorbi, Sandro, Abbruzzese, Giovanni, Bandettini di Poggio, Monica, Ferrandes, Giovanna, Mandich, Paola, Marchese, Roberta, Di Maria, Emilio, Tamburini, Tiziano, Albanese, Alberto, Castagliuolo, Simona, Castaldo, Anna, Di Donato, Stefano, Di Bella, Daniela, Gellera, Cinzia, Genitrini, Silvia, Mariotti, Caterina, Nanetti, Lorenzo, Panzeri, Marta, Paridi, Dominga, Soliveri, Paola, Spagnolo, Francesca, Taroni, Franco, Tomasello, Chiara, De Michele, Giuseppe, Di Maio, Luigi, Rinaldi, Carlo, Massarelli, Marco, Peluso, Silvio, Roca, Alessandro, Russo, Cinzia Valeria, Salvatore, Elena, Sorrentino, Pierpaolo, Tucci, Tecla, Cannella, Milena, Codella, Valentina, De Gregorio, Francesca, De Nicola, Annunziata, Elifani, Francesca, Esposito, Chiara, Martino, Tiziana, Mazzante, Irene, Petrollini, Martina, Simonelli, Maria, Vezza, Maurizio, Squitieri, Ferdinando, D'Alessio, Barbara, Lovo, Francesca, Bentivoglio, Anna Rita, Bove, Francesco, Catalli, Claudio, Di Giacopo, Raffaella, Fasano, Alfonso, Frontali, Marina, Guidubaldi, Arianna, Ialongo, Tamara, Jacopini, Gioia, Loria, Giovanna, Modoni, Anna, Petracca, Martina, Piano, Carla, Chiara, Piccininni, Quaranta, Davide, Romano, Silvia, Soleti, Francesco, Solito, Marcella, Spadaro, Maria, Torlizzi, Flavia, Coarelli, Giulia, Ferraldeschi, Michela, Ristori, Giovanni, van Hout, Monique S. E., van Vugt, Jeroen P. P., Marit de Weert, A., Verhoeven, Marloes, Dekker, Meike, Klooster, Jesper, Leenders, Nico, van Oostrom, Joost, Kremer, Berry, Baake, Verena, van den Bogaard, Simon J. A., Dumas, Eve M., t Hart, Ellen P., Hogenboom, Marye, Jacobs, Milou, Jurgens, Caroline, Kampstra, Anne, Schoonderbeek, Anne, Witjes-Ané, Marie-Noëlle, Duits, Annelien, Waber, Mirella, Verstappen, Carla, Blinkenberg, Ellen Økland, Hauge, Erik, Tyvoll, Hilde, Aaserud, Olaf, Aanonsen, Nils Olaf, Bjørgo, Kathrine, Borgerød, Nancy, Dramstad, Elisabeth, Fannemel, Madeleine, Frich, Jan C., Gørvell, Per F., Haggag, Kathrine, Johannessen, Cecilie Haggag, Retterstøl, Lars, Røsby, Oddveig, Rummel, Jutta, Sikiric, Alma, Stokke, Bodil, van Walsem, Marleen, Wehus, Ragnhild, Arntsen, Vibeke, Bjørnevoll, Inga, Sando, Sigrid Botne, Haug, Marte Gjøl, Størseth, Hanna Haugan, Østern, Rune, Paulsen, Julie, Dziadkiewicz, Artur, Konkel, Agnieszka, Narożańska, Ewa, Nowak, Malgorzata, Robowski, Piotr, Sitek, Emilia, Slawek, Jaroslaw, Soltan, Witold, Szinwelski, Michal, Arkuszewski, Michał, Błaszczyk, Magdalena, Boczarska-Jedynak, Magdalena, Ciach-Wysocka, Ewelina, Gorzkowska, Agnieszka, Jasińska-Myga, Barbara, Kaczmarczyk, Aleksandra, Kłodowska – Duda, Gabriela, Opala, Grzegorz, Rudzińska, Monika, Stompel, Daniel, Banaszkiewicz, Krzysztof, Boćwińska, Dorota, Bojakowska-Jaremek, Kamila, Dec, Małgorzata, Grabska, Natalia, Krawczyk, Malgorzata, Kubowicz, Ewelina, Malec-Litwinowicz, Michalina, Stenwak, Agata, Szczudlik, Andrzej, Szczygieł, Elżbieta, Wójcik, Magdalena, Wasielewska, Anna, Anna Bryl, Jacek Anioła, Ciesielska, Anna, Klimberg, Aneta, Marcinkowski, Jerzy, Samara, Husam, Sempołowicz, Justyna, Wiśniewski, Bartłomiej, Gogol (formerly Kalbarczyk), Anna, Janik, Piotr, Jamrozik, Zygmunt, Kaminska, Anna, Kwiecinski+, Hubert, Antczak, Jakub, Jachinska, Katarzyna, Krysa, Wioletta, Rakowicz, Maryla, Rola, Rafal, Ryglewicz, Danuta, Sienkiewicz-Jarosz, Halina, Stępniak, Iwona, Sułek, Anna, Zaremba, Jacek, Zdzienicka, Elzbieta, Ziora-Jakutowicz, Karolina, Januário, Cristina, Júlio, Filipa, Almeida, Manuel, Calado, Ana, Dias, Margarida, Morgado, Joana, Semedo, Cristina, Coelho, Miguel, Magalhães, Andreia, Mendes, Tiago, Neutel, Dulce, Rodrigues, Filipe, Valadas, Anabela, Costa, Cristina, Cardoso, Helena, Santos, Mariana, Cação, Gonçalo, Cavaco, Sara, Damásio, Joana, Fernandes, Joana, Gonçalves, Alexandra, Loureiro, Rui, Moreira, Inês, Magalhães, Marina, Salgado, Paula, Andrade, Carlos, Costa, Andreia, Garrett, Carolina, Gago, Miguel, Guimarães, Joana, Massano, João, Meireles, Joana, Monteiro, Ana, Khasanova, Diana, Zalyalova, Zuleykha, Klyushnikov, Sergey, Sidorova, Olga, Smirnov, Oleg, Antonova, Victoria, Kopishinskaya, Svetlana, Korotysh, Maria, Magzhanov, Rim, Saifullina, Elena, Kurbatov, Sergey, Solis, Pilar, Herrera, Carmen Durán, Moreno, Patrocinio Garcia, Bas, Jordi, Busquets, Núria, Calopa, Matilde, Classen, Serge Jaumà, Dedichá, Nadia Rodríguez, Buongiorno, María Teresa, María, Andrés de la Cerda Santa, Muñoz, Esteban, Santacruz, Pilar, Barbera, Miquel Aguilar, Pardo, Sonia Arribas, Guia, Dolors Badenes, Calzado, Noemi, Hernanz, Laura Casas, Tartari Díaz-Zorita, Juan Pablo, Catena, Judit López, Ferrer, Pilar Quiléz, Carruesco, Gemma Tome, Robert, Misericordia Floriach, Viladrich, Cèlia Mareca, Roca, Elvira, Ruiz Idiago, Jesús Miguel, Riballo, Antonio Villa, Campolongo, Antonia, Fernandez de Bobadilla, Ramon, Bojarsky, Jaime Kulisevsky, Pagonabarraga, Javier, Perez, Jesus Perez, Ribosa, Roser, Villa, Carolina, Acera Gil, Maria Angeles, Corrales, Koldo Berganzo, Gomez Esteban, Juan Carlos, González, Amaia, Merino, Beatriz Tijero, Cubo, Esther, Polo, Cecilia Gil, Mariscal, Natividad, Sánchez, Jesús, Romero, Sandra Gutierrez, Arbelo, José Matías, Malo de Molina, Rocío, Martín, Idaira, Periañez, Juan Manuel, Udaeta, Beatriz, Alonso-Frech, Fernando, Loarte, María del Valle, Barrero, Francisco, Morales, Blas, Frades, Belén, Villanueva, Marina Ávila, Zea Sevilla, Maria Ascension, Fenollar, María del Mar, García-Ramos García, Rocío, Villanueva, Clara, Bascuñana, Mónica, Ventura, Marta Fatás, Caldentey, Juan García, Ribas, Guillermo García, García de Yébenes, Justo, López-Sendón Moreno, José Luis, Barral, Verónica Mañanes, Feliz, Cici, García Ruíz, Pedro José, García, Ana, López, Rosa Guerrero, Bárcenas, Antonio Herranz, Martínez-Descals, Asunción, Pueyo, Angel Martínez, Martin, Veronica Puertas, Martínez, Noelia Rodríguez, Montojo, Teresa, Sainz Artiga, María José, Sánchez, Vicenta, Alarcón, María Dolores, Almagro, Carmen Antúnez, Diéguez, Esther, Fortuna, Lorenza, Legaz, Agustina, Manzanares, Salvadora, Muñoz, Juan Marín, Antequera Torres, María Martirio, Perea, Fuensanta Noguera, Vivancos, Laura, González, Sonia, Guisasola, Luis Menéndez, Prieto, Marta Para, Ribacoba, René, Salvador, Carlos, Lozano, Pablo Sánchez, Ramirez, Inés Legarda, Benito, Dolors Moragues, Arques, Penelope Navas, Lopera, Monica Rodriguez, Pastor, Barbara Vives, Gaston, Itziar, Garcia-Amigot, Fermin, Martinez-Jaurrieta, Maria Dolores, Ramos-Arroyo, Maria Antonia, Adarmes, Astrid, Bernal-Escudero, Maravilla, Carrillo, Fátima, Jesús, Silvia, Mir, Pablo, Vargas-González, Laura, Hermoso, Fátima Damas, García Moreno, José Manuel, Jaramillo, Javier Abril, Lucena, Carolina Mendez, Pacheco Cortegana, Eva María, Peña, José Chacón, Redondo, Luis, Sánchez, Violeta Sánchez, Fernandez, Cristina Melgar, Romero Lemos, María Dolores, Mata, Maite Paredes, Casado, Rocío Villagrán, Bosca, Maria, Burguera, Juan Andres, Brugada, Francisco Castera, Millán Salvador, Jose Maria, Vilaplana, Carmen Peiró, Solís, Pilar, Figuerola, Begoña Jeweinat, Palanca, Paloma Millan, Diago, Elena Bellosta, López del Val, Javier, Martinez, Laura Martinez, López, Elena, Høsterey-Ugander, Ulrika, Fredlund, Gunnel, Constantinescu, Radu, Lewin, Kajsa, Neleborn-Lingefjärd, Liselotte, Berglund, Maria, Berglund, Peter, Linnsand, Petra, Petersén, Åsa, Reimer, Jan, Widner, Håkan, Esmaeilzadeh, Mouna, Tedroff, Joakim, Winnberg, Elisabeth, Benaminov, Stanislav, Björnsson, Elisabeth, Merrick, Daniel, Paucar, Martin, Svenningsson, Per, Wallden, Tina, Berglund, Måns, Loutfi, Ghada, Olofsson, Carina, Stattin, Eva-Lena, Westman, Laila, Wikström, Birgitta, Ekwall, Camilla, Göller, Marie-Lousie, Johansson, Anders, Niemelä, Valter, Nyholm, Dag, Wiklund, Leif, Koehli, Jessica, Stebler, Yanik, Kaelin, Alain, Romero, Irene, Schüpbach, Michael, Zaugg, Sabine Weber, Esposito, Federica, Good, Jean-Marc, Paus, Karin, Vingerhoets, Francois, Wider+, Christian, Jung, Hans H., Petersen, Jens A., Ligon-Auer, Maria, Mihaylova, Violeta, Downie, Lorna, Jack, Roisin, Matheson, Kirsty, Miedzybrodzka, Zosia, Rae, Daniela, Simpson, Sheila A., Summers, Fiona, Ure, Alexandra, Vaughan, Vivien, Harrower, Timothy, Vernon, Nathan, Akhtar, Shahbana, Crooks, Jenny, Curtis, Adrienne, de Souza (Keylock), Jenny, Piedad, John, Rickards, Hugh, Wright, Jan, Haig-Brown, Diane, Craven, Janet, Pallett, Andrew, Simpson, Steve, Weekes, Rebecca, Coulthard, Elizabeth, Gethin, Louise, Hayward, Beverley, Sieradzan, Kasia, Barker, Roger A., O'Keefe, Deidre, Gerrtiz (nee Di Pietro), Anna, Fisher, Kate, Goodman, Anna, Hill, Susan, Mason, Sarah, Swain, Rachel, Guzman, Natalie Valle, Busse, Monica, Butcher, Cynthia, Dunnett, Stephen, Clenaghan, Catherine, Hunt, Sarah, Jones, Lesley, Jones, Una, Khalil, Hanan, Owen, Michael, Price, Kathleen, Rosser, Anne, Goudie, David, Buchanan, Lindsay, Mcfadyen, Paula, Tonner, Alison, Taylor, Anne-Marie, Edwards, Maureen, Carrie, Ho, Mcgill, Marie, Porteous, Mary, Pearson, Pauline, Irvine, Sarah, Brockie, Peter, Foster, Jillian, Johns, Nicola, Mckenzie, Sue, Rothery, Jean, Thomas, Gareth, Yates, Shona, Neumann, Christian, Patterson, Kirsten, Thomson, David, Deith, Catherine, Ireland, Jane, Ritchie, Stuart, Brown, Pauline, Burrows, Liz, Fletcher, Amy, Harding, Alison, Harrison, Kaye, Laver, Fiona, Silva, Mark, Thomson, Aileen, Chu, Carol, Evans, Carole, Gallentree, Deena, Hamer, Stephanie, Kraus, Alison, Markova, Ivana, Raman, Ashok, Rowett, Liz, Andrew, Alyson, Frost, Julie, Noad, Rupert, Cosgrove, Jeremy, Gallantree, Deena, Hobson, Emma, Jamieson, Stuart, Longthorpe, Mandy, Musgrave, Hannah, Peacy, Caroline, Toscano, Jean, Wild, Sue, Yardumian, Pam, Clayton, Carole, Dipple, Heather, Freire-Patino, Dawn, Hallam, Caroline, Middleton, Julia, Alusi, Sundus, Davies, Rhys, Foy, Kevin, Gerrans, Emily, Pate, Louise, Anjum, Uruj, Coebergh, Jan, Eddy, Charlotte, Lahiri, Nayana, Mcentagart, Meriel, Patton, Michael, Peterson, Maria, Rose, Sarah, Andrews, Thomasin, Dougherty, Andrew, Golding, Charlotte, Kavalier, Fred, Laing, Hana, Lashwood, Alison, Robertson, Dene, Ruddy, Deborah, Santhouse, Alastair, Whaite, Anna, Gosling (nee Brown), Stefanie, Bruno, Stefania, Chu, Elvina, Doherty, Karen, Haider, Salman, Hensman, Davina, Lewis, Monica, Novak, Marianne, Patel, Aakta, Robertson, Nicola, Rosser, Elisabeth, Tabrizi, Sarah, Taylor, Rachel, Warner, Thomas, Wild, Edward, Ackermann, Oda, Duport, Sophie, Scott, Adrienne, Stoy, Nicholas, Vaughn, Jenny, Arran, Natalie, Bek, Judith, Craufurd, David, Hare, Marianne, Howard, Liz, Huson, Susan, Johnson, Liz, Jones, Mary, Krishnamoorthy, Ashok, Murphy, Helen, Oughton, Emma, Partington-Jones, Lucy, Sollom, Andrea, Snowden, Julie, Stopford, Cheryl, Thompson, Jennifer, Trender-Gerhard, Iris, Verstraelen (formerly Ritchie), Nichola, Westmoreland, Leann, Cass, Ginette, Davidson, Lynn, Davison, Jill, Fullerton, Neil, Holmes, Katrina, Komati, Suresh, Mcdonnell, Sharon, Mohammed, Zeid, Morgan, Karen, Savage, Lois, Singh, Baldev, Wood, Josh, Knight, Caroline, O'Neill, Mari, Purkayastha, Debasish Das, Nemeth, Andrea H., Siuda, Gill, Valentine, Ruth, Dixon, Kathryn, Armstrong, Richard, Harrison, David, Hughes, Max, Large, Sandra, Donovan, John O., Palmer, Amy, Parkinson, Andrew, Soltysiak, Beverley, Timings, Leanne, Williams, Josh, Burn, John, Bailey, Wendy, Coleman, Caroline, Majeed, Tahir, Verstraelen (Ritchie), Nicola, Barrett, Wendy, Aileen, Ho, Bandmann, Oliver, Bradbury, Alyson, Fairtlough, Helen, Fillingham, Kay, Foustanos, Isabella, Gill, Paul, Kazoka, Mbombe, O'Donovan, Kirsty, Nevitt, Louise, Taylor, Cat, Tidswell, Katherine, Kipps, Christopher, Mackinnon, Lesley, Agarwal, Veena, Hayward, Elaine, Gunner, Kerry, Harris, Kayla, Anderson, Mary, Heywood, Melanie, Keys, Liane, Smalley, Sarah, El-Nimr, George, Duffell, Allison, Wood, Sue, Kennedy (nee Smith), Karen, Gowers, Lesley, Powell, Kingsley, Bethwaite, Pamela, Edwards, Rachel, Fuller, Kathleen, Phillips, Michelle, Tan, Louis, Lau, Puay Ngoh, Pica, Emmanuel, Roos, Raymund AC., Klinische Neurowetenschappen, MUMC+: MA Med Staf Spec Neurologie (9), MUMC+: KIO Kemta (9), Epidemiologie, RS: CAPHRI - R2 - Creating Value-Based Health Care, Klinische Genetica, MUMC+: DA KG Polikliniek (9), and RS: GROW - R4 - Reproductive and Perinatal Medicine

Subjects
Male, HD, 0301 basic medicine, Pediatrics, Neurology, Huntingtin Protein/genetics, FEATURES, Disease, Neuropsychological Tests, 0302 clinical medicine, Cognitive Dysfunction/psychology, Medicine, Family history, Postural Balance, Huntington Disease/genetics, Huntingtin Protein, education.field_of_study, Chorea/physiopathology, Huntington's disease, Sensation Disorders/physiopathology, Middle Aged, Dystonia, Settore MED/26 - NEUROLOGIA, Huntington Disease, neurodegenerative disorders, Sensation Disorders, Disease Progression, Female, medicine.symptom, Adult, medicine.medical_specialty, Population, Age of onset, Late-onset Huntington's disease, Geriatrics and Gerontology, Neurology (clinical), 03 medical and health sciences, AGE, Chorea, Humans, Cognitive Dysfunction, education, Dystonia/physiopathology, Gait Disorders, Neurologic/physiopathology, Gait Disorders, Neurologic, business.industry, medicine.disease, Gait, 030104 developmental biology, Trinucleotide Repeat Expansion, business, 030217 neurology & neurosurgery, Balance problems
Abstract

Background: The frequency of late-onset Huntington's disease (>59 years) is assumed to be low and the clinical course milder. However, previous literature on late-onset disease is scarce and inconclusive. Objective: Our aim is to study clinical characteristics of late-onset compared to common-onset HD patients in a large cohort of HD patients from the Registry database. Methods: Participants with late- and common-onset (30–50 years)were compared for first clinical symptoms, disease progression, CAG repeat size and family history. Participants with a missing CAG repeat size, a repeat size of ≤35 or a UHDRS motor score of ≤5 were excluded. Results: Of 6007 eligible participants, 687 had late-onset (11.4%) and 3216 (53.5%) common-onset HD. Late-onset (n = 577) had significantly more gait and balance problems as first symptom compared to common-onset (n = 2408) (P

Published
2019
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5. Evaluation of a COVID-19 IgM and IgG rapid test; an efficient tool for assessment of past exposure to SARS-CoV-2

Author

Hoffman, Tove, Nissen, Karolina, Krambrich, Janina, Rönnberg, Bengt, Akaberi, Dario, Esmaeilzadeh, Mouna, Salaneck, Erik, Lindahl, Johanna, and Lundkvist, Åke

Subjects
sars-CoV-2, rapid test, IgM, Epidemiology, IgG, diagnostics, COVID-19, Infectious and parasitic diseases, RC109-216, Environmental Science (miscellaneous), Research Article
Abstract

COVID-19 is the most rapidly growing pandemic in modern time, and the need for serological testing is most urgent. Although the diagnostics of acute patients by RT-PCR is both efficient and specific, we are also crucially in need of serological tools for investigating antibody responses and assessing individual and potential herd immunity. We evaluated a commercially available test developed for rapid (within 15 minutes) detection of SARS-CoV-2-specific IgM and IgG by 29 PCR-confirmed COVID-19 cases and 124 negative controls. The results revealed a sensitivity of 69% and 93.1% for IgM and IgG, respectively, based solely on PCR-positivity due to the absence of a serological gold standard. The assay specificities were shown to be 100% for IgM and 99.2% for IgG. This indicates that the test is suitable for assessing previous virus exposure, although negative results may be unreliable during the first weeks after infection. More detailed studies on antibody responses during and post infection are urgently needed.

Published
2020

9. Evaluation of a COVID-19 IgM and IgG rapid test; an efficient tool for 4 assessment of past exposure to SARS-CoV-2

Author

Hoffman, Tove, Nissen, Karolina, Krambrich, Janina, Rönnberg, Bengt, Akaberi, Dario, Esmaeilzadeh, Mouna, Salaneck, Erik, Lindahl, Johanna, and Lundkvist, Åke

Subjects
rapid test, IgM, SARS-CoV-2, IgG, Immunologi inom det medicinska området, diagnostics, COVID-19, Immunology in the medical area
Abstract

COVID-19 is the most rapidly growing pandemic in modern time, and the need for 21 serological testing is most urgent. Although the diagnostics of acute patients by RT-PCR is 22 both efficient and specific, we are also crucially in need of serological tools for investigating 23 antibody responses and assessing individual and potential herd immunity. We evaluated a 24 commercially available test developed for rapid (within 15 minutes) detection of SARS-CoV-25 2-specific IgM and IgG by 29 PCR-confirmed COVID-19 cases and 124 negative controls. 26 The results revealed a sensitivity of 69.0 % and 93.1 % for IgM and IgG, respectively, based 27 solely on PCR-positivity due to the absence of a serological gold standard. The assay 28 specificities were shown to be 100 % for IgM and 99.2 % for IgG. This indicates that the test 29 is suitable for assessing previous virus exposure, although negative results may be unreliable 30 during the first weeks after infection. More detailed studies on antibody responses during and 31 post infection are urgently needed.

Published
2020

10. High seroprevalence of SARS-CoV-2 in elderly care employees in Sweden

Author

Lindahl, Johanna, Hoffman, Tove, Esmaeilzadeh, Mouna, Olsen, Björn, Winter, Reidar, Amer, Stefan, Molnár, Christian, Svalberg, Ann, Lundkvist, Åke, Lindahl, Johanna, Hoffman, Tove, Esmaeilzadeh, Mouna, Olsen, Björn, Winter, Reidar, Amer, Stefan, Molnár, Christian, Svalberg, Ann, and Lundkvist, Åke

Abstract

The COVID-19 pandemic is growing and spread in the Swedish elderly care system during April 2020. The increasing number of employees on sick-leave due to COVID-19 created severe logistic problems. Some elderly care homes therefore started to screen their personnel to secure the safety of the elderly and to avoid unnecessary quarantine of potentially immune employees. Secondary data from a screening with a COVID-19 rapid test for detection of SARS-CoV-2-specific IgM and IgG of 1,005 employees in 22 elderly care homes in Stockholm, Sweden, were analyzed. Seropositive employees were found in 21 out of the 22 care homes. In total, 23% (231/1,005) of the employees tested positive for antibodies against SARS-CoV-2, and 14.3% (144/1,005) were found positive for IgM (either alone or combined with IgG), indicating recent or present infection. Of those that tested seropositive, 46.5% did not report any clinical symptoms, indicating pre- or asymptomatic infections. Reported symptoms with the highest correlation with seropositivity were fever and loss of smell and taste. These results suggest that antibody testing of employees in elderly care homes is valuable for surveillance of disease development and a crucial screening tool in the effort to decrease the death toll in this pandemic.

Published
2020
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12. Seeking Brain Biomarkers for Preventive Therapy in Huntington Disease

Author

Esmaeilzadeh, Mouna, Ciarmiello, Andrea, and Squitieri, Ferdinando

Subjects
Diagnostic Imaging, Glucose, Huntington Disease, Receptors, Dopamine D2, Preventive Health Services, Reviews, Animals, Brain, Humans, Biomarkers
Abstract

Huntington disease (HD) is a severe incurable nervous system disease that generally has an onset age of around 35-50, and is caused by a dominantly transmitted expansion mutation. A genetic test allows persons at risk, i.e., offspring or siblings of affected individuals, to discover their genetic status. Unaffected mutation-positive subjects will manifest HD sometime during life. Despite major advances in research on pathogenic mechanisms, no studies have yet fully validated preventive therapy or biomarkers for use before the symptoms become clinically manifest. Seeking brain and peripheral biomarkers is a requisite to develop a cure for HD. Changes in the brain can be observed in vivo using methods such as structural magnetic resonance imaging (MRI), diffusion tensor imaging (DTI), functional MRI (fMRI), and positron emission tomography (PET), detecting volumetric changes, microstructural and connectivity alterations, abnormalities in brain activity in response to specific tasks, and abnormalities in metabolism and receptor distribution. Although all these imaging techniques can detect early markers in asymptomatic HD gene carriers for premanifest screening and pharmacological responses to therapeutic interventions no single modality has yet provided and validated an optimal marker probably because this task requires an integrative multimodal imaging approach. In this article, we review the findings from imaging procedures in the attempt to identify potential brain markers, so-called dry biomarkers, for possible application to further, yet unavailable, neuroprotective preventive therapies for HD manifestations.

Published
2010

13. Extrastriatal dopamine D(2) receptor binding in Huntington's disease

Author

Esmaeilzadeh Mouna, Farde Lars, Karlsson Per, Varrone Andrea, Halldin Christer, Waters Susanna, and Tedroff Joakim

Subjects
Adult, Male, Brain Mapping, Carbon Isotopes, Pyrrolidines, Receptors, Dopamine D2, Dopamine, Statistics as Topic, Middle Aged, Extrastriatal, Magnetic Resonance Imaging, Severity of Illness Index, Corpus Striatum, HUMAN BRAIN MAPPING, Young Adult, Huntington Disease, nervous system, Positron-Emission Tomography, Salicylamides, Dopamine Antagonists, Humans, Female, Research Articles, Aged, Protein Binding
Abstract

Huntington's disease (HD) is a neurodegenerative disorder, primarily affecting medium spiny neurones in the striatum. The density of striatal dopamine D(2) receptors is reduced in HD but there is little known about this biomarker in brain regions outside the striatum. The primary objective of this study was to compare extrastriatal dopamine D(2) receptor binding, in age‐matched control subjects and patients with HD. All subjects were examined using a high‐resolution positron emission tomography system and the high‐affinity dopamine D(2) receptor radioligand [(11)C]FLB 457. A ROI based analysis was used with an atrophy correction method. Dopamine D(2) receptor binding potential was reduced in the striatum of patients with HD. Unlike the striatum, dopamine D(2) receptor binding in thalamic and cortical subregions was not significantly different from that in control subjects. A partial least square regression analysis which included binding potential values from all investigated cortical and subcortical regions revealed a significant model separating patients from controls, conclusively dependent on differences in striatal binding of the radioligand. Some clinical assessments correlated with striatal dopamine D(2) receptor binding, including severity of chorea and cognitive test performance. Hence, the present study demonstrates that dopamine D(2) receptors extrinsic to the striatum are well preserved in early to mid stage patients with HD. This observation may have implication for the development of therapy for HD. Hum Brain Mapp, 2010. © 2010 Wiley‐Liss, Inc.

Published
2010

14. Towards a novel treatment of Huntington’s disease

Author

Esmaeilzadeh, Mouna and Esmaeilzadeh, Mouna

Abstract

The function of the human brain is based on complex interactions between billions of neurons. The brain function declines as a result of normal aging, but is also disturbed in neuropsychiatric and neurodegenerative disorders. Huntington’s disease is a hereditary autosomal-dominant neurodegenerative disorder that manifests with a complex range of symptoms resulting in severe motor deficiencies, cognitive decline, behavioral disturbances, and premature death. To date, no preventive, disease-modifying, or even symptomatic therapy exists. Normal function of the brain is maintained by different neurotransmitters, which act through their receptors. One such example is the monoamine neurotransmitter dopamine, which plays a central role in normal brain function. The dopamine system is involved in a wide range of functions such as motor function, reward, cognition and emotion, and is importantly connected to the modulation of glutamate functions in the brain. There is evidence that dopaminergic systems are disturbed in Huntington’s disease, and that the delicate balance between dopamine and glutamate interplay is disrupted in the disorder. Dopaminergic stabilizers belong to a novel class of CNS compounds that can both enhance and counteract psychomotor activity depending on the initial level. Such effects are believed to be mediated by state dependent modulation of monoaminergic and glutamatergic functions. One such compound, pridopidine (ACR16), is currently in development for the treatment of Huntington’s disease. The aim of this thesis was to better understand the physiopharmacology of dopaminergic stabilizers and to investigate their effects in healthy subjects and patients with Huntington’s disease. To explore the possibilities for this therapy in Huntington’s disease, three experimental studies using positron emission tomography were undertaken. These studies yielded a number of findings. It could be shown that the extrastriatal density of dopamine D2 receptors is well

Published
2011

19. Endogenous competition against binding of [18F]DMFP and [18F]fallypride to dopamine D2/3 receptors in brain of living mouse

Author

Rominger, Axel, primary, Wagner, Erika, additional, Mille, Erik, additional, Böning, Guido, additional, Esmaeilzadeh, Mouna, additional, Wängler, Björn, additional, Gildehaus, Franz‐Josef, additional, Nowak, Sebastian, additional, Bruche, Ariane, additional, Tatsch, Klaus, additional, Bartenstein, Peter, additional, and Cumming, Paul, additional

Published
2009
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20. Extrastriatal dopamine D2 receptor binding in Huntington's disease.

Author

Esmaeilzadeh, Mouna, Farde, Lars, Karlsson, Per, Varrone, Andrea, Halldin, Christer, Waters, Susanna, and Tedroff, Joakim

Abstract

Huntington's disease (HD) is a neurodegenerative disorder, primarily affecting medium spiny neurones in the striatum. The density of striatal dopamine D2 receptors is reduced in HD but there is little known about this biomarker in brain regions outside the striatum. The primary objective of this study was to compare extrastriatal dopamine D2 receptor binding, in age-matched control subjects and patients with HD. All subjects were examined using a high-resolution positron emission tomography system and the high-affinity dopamine D2 receptor radioligand [11C]FLB 457. A ROI based analysis was used with an atrophy correction method. Dopamine D2 receptor binding potential was reduced in the striatum of patients with HD. Unlike the striatum, dopamine D2 receptor binding in thalamic and cortical subregions was not significantly different from that in control subjects. A partial least square regression analysis which included binding potential values from all investigated cortical and subcortical regions revealed a significant model separating patients from controls, conclusively dependent on differences in striatal binding of the radioligand. Some clinical assessments correlated with striatal dopamine D2 receptor binding, including severity of chorea and cognitive test performance. Hence, the present study demonstrates that dopamine D2 receptors extrinsic to the striatum are well preserved in early to mid stage patients with HD. This observation may have implication for the development of therapy for HD. Hum Brain Mapp, 2010. © 2010 Wiley-Liss, Inc. [ABSTRACT FROM AUTHOR]

Published
2011
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21. Endogenous competition against binding of [18F]DMFP and [18F]fallypride to dopamine D2/3 receptors in brain of living mouse.

Author

Rominger, Axel, Wagner, Erika, Mille, Erik, Böning, Guido, Esmaeilzadeh, Mouna, Wängler, Björn, Gildehaus, Franz-Josef, Nowak, Sebastian, Bruche, Ariane, Tatsch, Klaus, Bartenstein, Peter, and Cumming, Paul

Abstract

Aim. Molecular imaging studies with benzamide radioligands can reveal competition from endogenous binding at D2/3-receptors in living brain. However, single photon emission computed tomography (SPECT) methods suffer from limited spatial resolution, and [11C]-labeled ligands are only available at positron emission tomography (PET) research sites with cyclotron-radiochemistry facilities, whereas [18F] can be transported, due to its longer physical half-life. Therefore, we endeavored to characterize the vulnerabilities of the benzamide antagonist [18F]desmethoxyfallypride (DMFP) and its high-affinity congener [18F]fallypride (FP) to competition from endogenous dopamine in living mouse brain. Methods. Groups of awake mice were pretreated with saline, amphetamine (10 mg/kg), or reserpine (5 mg/kg), followed by i.v. tracer injections. Mice were killed at 2.5-90 min (DMFP) or 2.5-180 min (FP) circulation times. Brains were dissected and regional radioactivity concentration measured by gamma counting. Other groups of mice were anesthetized for dynamic microPET recordings with DMFP or FP. Binding potentials ( BP ND) were calculated using cerebellum as reference region. Results. With 90-min circulation, DMFP BP ND in striatum was 2.4 by dissection and 2.2 by microPET, which showed a 62% decrease in response to amphetamine-evoked dopamine release and a 33% increase after reserpine-evoked dopamine depletion. With 120-min circulation, FP BP ND in striatum was 24.1 by dissection and 9.2 by microPET, which showed a 31% decrease in the amphetamine group, but no effect of reserpine. Dissection showed similar sensitivities for FP binding, but only a 29% amphetamine-evoked reduction for DMFP. Conclusions. Relative to gold standard ex vivo results, microPET estimates of DMFP BP ND were unbiased, whereas FP BP ND in striatum was substantially underestimated. Both tracers proved suitable for revealing pharmacologically evoked changes in competition at D2/3-receptors in striatum of living mice. Synapse 64:313-322, 2010. © 2009 Wiley-Liss, Inc. [ABSTRACT FROM AUTHOR]

Published
2010
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22. [Rapid point-of-care serology testing for sars-cov-2].

Author

Stackelberg O, Esmaeilzadeh M, Olsen B, and Lundkvist Å

Subjects
COVID-19, COVID-19 Testing, Epidemiologic Studies, Humans, SARS-CoV-2, Sensitivity and Specificity, Time, Betacoronavirus immunology, Clinical Laboratory Techniques standards, Coronavirus Infections diagnosis, Coronavirus Infections immunology, Pandemics, Pneumonia, Viral diagnosis, Pneumonia, Viral immunology, Point-of-Care Systems standards
Abstract

Increasing evidence indicates immunity against severe acute respiratory syndrome coronavirus 2 (sars-cov-2) after covid-19, but it remains unclear for how long the protection remains. Serology testing seems to have a higher sensitivity than molecular diagnostics from 8 days after onset of symtoms, and should be part of risk assessment and epidemiological studies of COVID-19. The performance of commercial serological point-of-care (POC) lateral flow tests are highly manufacturer-dependant. Low sensitivity increases the risk of false negative results and could result in unnecessary quarantine of test persons with developed antibodies. Low specificity increases the risk of false positive results and could lead to false assumptions of immunity. Carefully selected serological POC tests for sars-cov-2 can be used in large scale testing but should only be used by licensed medical staff able to understand their limitations and interpret the results.

Published
2020

23. Endogenous competition against binding of [(18)F]DMFP and [(18)F]fallypride to dopamine D(2/3) receptors in brain of living mouse.

Author

Rominger A, Wagner E, Mille E, Böning G, Esmaeilzadeh M, Wängler B, Gildehaus FJ, Nowak S, Bruche A, Tatsch K, Bartenstein P, and Cumming P

Subjects
Amphetamine pharmacology, Analysis of Variance, Animals, Brain diagnostic imaging, Brain drug effects, Brain Mapping, Dopamine metabolism, Dopamine Agents pharmacology, Dose-Response Relationship, Drug, Female, Fluorine Radioisotopes metabolism, Mice, Mice, Inbred BALB C, Positron-Emission Tomography methods, Pyrrolidines metabolism, Receptors, Dopamine D2 agonists, Salicylamides metabolism, Time Factors, Tissue Distribution drug effects, Wakefulness, Binding, Competitive drug effects, Brain metabolism, Fluorine Radioisotopes pharmacokinetics, Pyrrolidines pharmacokinetics, Receptors, Dopamine D2 metabolism, Salicylamides pharmacokinetics
Abstract

Aim: Molecular imaging studies with benzamide radioligands can reveal competition from endogenous binding at D(2/3)-receptors in living brain. However, single photon emission computed tomography (SPECT) methods suffer from limited spatial resolution, and [(11)C]-labeled ligands are only available at positron emission tomography (PET) research sites with cyclotron-radiochemistry facilities, whereas [(18)F] can be transported, due to its longer physical half-life. Therefore, we endeavored to characterize the vulnerabilities of the benzamide antagonist [(18)F]desmethoxyfallypride (DMFP) and its high-affinity congener [(18)F]fallypride (FP) to competition from endogenous dopamine in living mouse brain., Methods: Groups of awake mice were pretreated with saline, amphetamine (10 mg/kg), or reserpine (5 mg/kg), followed by i.v. tracer injections. Mice were killed at 2.5-90 min (DMFP) or 2.5-180 min (FP) circulation times. Brains were dissected and regional radioactivity concentration measured by gamma counting. Other groups of mice were anesthetized for dynamic microPET recordings with DMFP or FP. Binding potentials (BP(ND)) were calculated using cerebellum as reference region., Results: With 90-min circulation, DMFP BP(ND) in striatum was 2.4 by dissection and 2.2 by microPET, which showed a 62% decrease in response to amphetamine-evoked dopamine release and a 33% increase after reserpine-evoked dopamine depletion. With 120-min circulation, FP BP(ND) in striatum was 24.1 by dissection and 9.2 by microPET, which showed a 31% decrease in the amphetamine group, but no effect of reserpine. Dissection showed similar sensitivities for FP binding, but only a 29% amphetamine-evoked reduction for DMFP., Conclusions: Relative to gold standard ex vivo results, microPET estimates of DMFP BP(ND) were unbiased, whereas FP BP(ND) in striatum was substantially underestimated. Both tracers proved suitable for revealing pharmacologically evoked changes in competition at D(2/3)-receptors in striatum of living mice.

Published
2010
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