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1. Mendelian randomization implies no direct causal association between leukocyte telomere length and amyotrophic lateral sclerosis

Author

Gao, Y. (Yixin), Wang, T. (Ting), Yu, X. (Xinghao), Ferrari, R. (Raffaele), Hernandez, D.G. (Dena), Nalls, M.A. (Michael), Rohrer, J.D. (Jonathan), Ramasamy, A. (Adaikalavan), Kwok, J.B.J. (John), Dobson-Stone, C. (Carol), Brooks, W.S. (William S.), Schofield, P.R. (Peter R.), Halliday, G.M. (Glenda Margaret), Hodges, J.R. (John R.), Piguet, O. (Olivier), Bartley, L. (Lauren), Thompson, E. (Elizabeth), Haan, E. (Eric), Hernández, I. (Isabel), Ruiz, A. (A.), Boada, M. (Mercè), Borroni, B. (Barbara), Padovani, A. (Alessandro), Crane, L.M.A., Cairns, N.J. (Nigel), Benussi, L. (Luisa), Binetti, G. (Giuliano), Ghidoni, R. (Roberta), Forloni, G. (Gianluigi), Albani, D. (Diego), Galimberti, D. (Daniela), Fenoglio, C. (Chiara), Serpente, M. (Maria), Scarpini, E. (Elio), Clarimón, J. (Jordi), Lleo, A. (Alberto), Blesa, R. (Rafael), Waldö, M.L. (Maria Landqvist), Nilsson, K. (Karin), Nilsson, C. (Christer), Mackenzie, I.R.A. (Ian), Hsiung, G.-Y.R. (Ging-Yuek R.), Mann, D.M.A. (David M. A.), Grafman, J. (Jordan), Morris, C.M. (Chris), Attems, J. (Johannes), Griffiths, T.D. (Timothy), McKeith, I.G. (Ian), Thomas, A.J. (Alan J.), Pietrini, P. (P.), Huey, E.D. (Edward), Wassermann, E.M. (Eric), Baborie, A. (Atik), Jaros, J.A.J. (Julian), Tierney, M.C. (Michael C.), Pastor, P. (Pau), Razquin, C. (Cristina), Ortega-Cubero, S. (Sara), Alonso, E. (Elena), Perneczky, R. (Robert), Diehl-Schmid, J. (Janine), Alexopoulos, E.C. (Evangelos), Kurz, A., Rainero, I. (Innocenzo), Rubino, M. (Maurizio), Pinessi, L. (Lorenzo), Rogaeva, E. (Ekaterina), George-Hyslop, P.S. (Peter St), Rossi, G. (Giacomina), Tagliavini, F. (Fabrizio), Giaccone, G. (Giuseppe), Rowe, J.B. (James), Schlachetzki, J.C.M. (Johannes C.), Uphill, J. (James), Collinge, J. (John), Mead, S. (Simon), Danek, A. (Adrian), Deerlin, V.M. (Vivianna), Grossman, M. (Murray), Trojanowski, J.Q. (John Q.), Zee, J. (Jill) van der, Cruts, M. (Marc), Broeckhoven, C. (Christine) van, Cappa, S.F. (Stefano), Leber, I. (Isabelle), Hannequin, D. (Didier), Golfier, V. (Véronique), Vercelletto, M. (Martine), Brice, A. (Alexis), Nacmias, B. (Benedetta), Sorbi, S. (Sandro), Bagnoli, S. (Silvia), Piaceri, I. (Irene), Nielsen, J.E. (Jørgen E.), Hjermind, L.E. (Lena), Riemenschneider, M. (Matthias), Mayhaus, M. (Manuel), Ibach, B. (Bernd), Gasparoni, G. (Gilles), Pichler, I. (Irene), Gu, W. (Wei), Rossor, M. (Martin), Fox, N.C. (Nick), Warren, J.D. (Jason), Spillantini, M.G., Morris, H.R. (Huw R.), Rizzu, P. (Patrizia), Heutink, P. (Peter), Snowden, J. (Julie), Rollinson, S. (Sara), Richardson, A. (Anna), Gerhard, A. (Alex), Bruni, A.C. (Amalia), Maletta, R. (Raffaele), Frangipane, F. (Francesca), Cupidi, C. (Chiara), Bernardi, L. (Livia), Anfossi, M. (Maria), Gallo, V. (Valentina), Conidi, A. (Andrea), Smirne, N. (Nicoletta), Rademakers, S. (Suzanne), Baker, M.C. (Matthew), Dickson, D. (Dennis), Graff-Radford, N.R. (Neill), Petersen, R.C. (Ronald C.), Knopman, D.S. (David), Josephs, K.A. (Keith), Boeve, B.F. (Bradley F.), Parisi, J.E. (Joseph), Seeley, W.W. (William W.), Miller, B.L. (Bruce L.), Karydas, A.M. (Anna M.), Rosen, H. (Howard), Swieten, J.C. (John) van, Dopper, E.G.P. (Elise), Seelaar, H. (Harro), Pijnenburg, Y.A.L. (Yolande), Scheltens, P. (Philip), Logroscino, G. (Giancarlo), Capozzo, R. (Rosa), Novelli, V. (Valeria), Puca, A.A. (Annibale), Franceschi, M. (Massimo), Postiglione, A. (Alfredo), Milan, D.J. (David), Sorrentino, D. (Dario), Kristiansen, M. (Mark), Chiang, Y.T., Graff, C. (Caroline), Pasquier, F. (Florence), Rollin, A. (Adeline), Deramecourt, V. (Vincent), Lebouvier, T. (Thibaud), Kapogiannis, D. (Dimitrios), Ferrucci, L. (Luigi), Pickering-Brown, S. (Stuart), Singleton, A. (Andrew), Hardy, J. (John), Momeni, P. (Parastoo), Zhao, H. (Huashuo), Zeng, P. (Ping), Gao, Y. (Yixin), Wang, T. (Ting), Yu, X. (Xinghao), Ferrari, R. (Raffaele), Hernandez, D.G. (Dena), Nalls, M.A. (Michael), Rohrer, J.D. (Jonathan), Ramasamy, A. (Adaikalavan), Kwok, J.B.J. (John), Dobson-Stone, C. (Carol), Brooks, W.S. (William S.), Schofield, P.R. (Peter R.), Halliday, G.M. (Glenda Margaret), Hodges, J.R. (John R.), Piguet, O. (Olivier), Bartley, L. (Lauren), Thompson, E. (Elizabeth), Haan, E. (Eric), Hernández, I. (Isabel), Ruiz, A. (A.), Boada, M. (Mercè), Borroni, B. (Barbara), Padovani, A. (Alessandro), Crane, L.M.A., Cairns, N.J. (Nigel), Benussi, L. (Luisa), Binetti, G. (Giuliano), Ghidoni, R. (Roberta), Forloni, G. (Gianluigi), Albani, D. (Diego), Galimberti, D. (Daniela), Fenoglio, C. (Chiara), Serpente, M. (Maria), Scarpini, E. (Elio), Clarimón, J. (Jordi), Lleo, A. (Alberto), Blesa, R. (Rafael), Waldö, M.L. (Maria Landqvist), Nilsson, K. (Karin), Nilsson, C. (Christer), Mackenzie, I.R.A. (Ian), Hsiung, G.-Y.R. (Ging-Yuek R.), Mann, D.M.A. (David M. A.), Grafman, J. (Jordan), Morris, C.M. (Chris), Attems, J. (Johannes), Griffiths, T.D. (Timothy), McKeith, I.G. (Ian), Thomas, A.J. (Alan J.), Pietrini, P. (P.), Huey, E.D. (Edward), Wassermann, E.M. (Eric), Baborie, A. (Atik), Jaros, J.A.J. (Julian), Tierney, M.C. (Michael C.), Pastor, P. (Pau), Razquin, C. (Cristina), Ortega-Cubero, S. (Sara), Alonso, E. (Elena), Perneczky, R. (Robert), Diehl-Schmid, J. (Janine), Alexopoulos, E.C. (Evangelos), Kurz, A., Rainero, I. (Innocenzo), Rubino, M. (Maurizio), Pinessi, L. (Lorenzo), Rogaeva, E. (Ekaterina), George-Hyslop, P.S. (Peter St), Rossi, G. (Giacomina), Tagliavini, F. (Fabrizio), Giaccone, G. (Giuseppe), Rowe, J.B. (James), Schlachetzki, J.C.M. (Johannes C.), Uphill, J. (James), Collinge, J. (John), Mead, S. (Simon), Danek, A. (Adrian), Deerlin, V.M. (Vivianna), Grossman, M. (Murray), Trojanowski, J.Q. (John Q.), Zee, J. (Jill) van der, Cruts, M. (Marc), Broeckhoven, C. (Christine) van, Cappa, S.F. (Stefano), Leber, I. (Isabelle), Hannequin, D. (Didier), Golfier, V. (Véronique), Vercelletto, M. (Martine), Brice, A. (Alexis), Nacmias, B. (Benedetta), Sorbi, S. (Sandro), Bagnoli, S. (Silvia), Piaceri, I. (Irene), Nielsen, J.E. (Jørgen E.), Hjermind, L.E. (Lena), Riemenschneider, M. (Matthias), Mayhaus, M. (Manuel), Ibach, B. (Bernd), Gasparoni, G. (Gilles), Pichler, I. (Irene), Gu, W. (Wei), Rossor, M. (Martin), Fox, N.C. (Nick), Warren, J.D. (Jason), Spillantini, M.G., Morris, H.R. (Huw R.), Rizzu, P. (Patrizia), Heutink, P. (Peter), Snowden, J. (Julie), Rollinson, S. (Sara), Richardson, A. (Anna), Gerhard, A. (Alex), Bruni, A.C. (Amalia), Maletta, R. (Raffaele), Frangipane, F. (Francesca), Cupidi, C. (Chiara), Bernardi, L. (Livia), Anfossi, M. (Maria), Gallo, V. (Valentina), Conidi, A. (Andrea), Smirne, N. (Nicoletta), Rademakers, S. (Suzanne), Baker, M.C. (Matthew), Dickson, D. (Dennis), Graff-Radford, N.R. (Neill), Petersen, R.C. (Ronald C.), Knopman, D.S. (David), Josephs, K.A. (Keith), Boeve, B.F. (Bradley F.), Parisi, J.E. (Joseph), Seeley, W.W. (William W.), Miller, B.L. (Bruce L.), Karydas, A.M. (Anna M.), Rosen, H. (Howard), Swieten, J.C. (John) van, Dopper, E.G.P. (Elise), Seelaar, H. (Harro), Pijnenburg, Y.A.L. (Yolande), Scheltens, P. (Philip), Logroscino, G. (Giancarlo), Capozzo, R. (Rosa), Novelli, V. (Valeria), Puca, A.A. (Annibale), Franceschi, M. (Massimo), Postiglione, A. (Alfredo), Milan, D.J. (David), Sorrentino, D. (Dario), Kristiansen, M. (Mark), Chiang, Y.T., Graff, C. (Caroline), Pasquier, F. (Florence), Rollin, A. (Adeline), Deramecourt, V. (Vincent), Lebouvier, T. (Thibaud), Kapogiannis, D. (Dimitrios), Ferrucci, L. (Luigi), Pickering-Brown, S. (Stuart), Singleton, A. (Andrew), Hardy, J. (John), Momeni, P. (Parastoo), Zhao, H. (Huashuo), and Zeng, P. (Ping)

Abstract

We employed Mendelian randomization (MR) to evaluate the causal relationship between leukocyte telomere length (LTL) and amyotrophic lateral sclerosis (ALS) with summary statistics from genome-wide association studies (n = ~ 38,000 for LTL and ~ 81,000 for ALS in the European population; n = ~ 23,000 for LTL and ~ 4,100 for ALS in the Asian population). We further evaluated mediation roles of lipids in the pathway from LTL to ALS. The odds ratio per standard deviation decrease of LTL on ALS was 1.10 (95% CI 0.93–1.31, p = 0.274) in the European population and 0.75 (95% CI 0.53–1.07, p = 0.116) in the Asian population. This null association was also detected between LTL and frontotemporal dementia in the European population. However, we found that an indirect effect of LTL on ALS might be mediated by low density lipoprotein (LDL) or total cholesterol (TC) in the European population.

Published
2020
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2. Genetic variation across RNA metabolism and cell death gene networks is implicated in the semantic variant of primary progressive aphasia

Author

Bonham, L.W. (Luke W.), Steele, N.Z.R. (Natasha Z. R.), Karch, C.M. (Celeste M.), Broce, I. (Iris), Geier, E.G. (Ethan G.), Wen, N.L. (Natalie L.), Momeni, P. (Parastoo), Hardy, J. (John), Miller, Z.A. (Zachary A.), Gorno-Tempini, M.L. (Maria Luisa), Hess, C.P. (Christopher P.), Lewis, P. (Patrick), Miller, B.L. (Bruce Lars), Seeley, W.W. (William W.), Manzoni, C. (Claudia), Desikan, R.S. (Rahul S.), Baranzini, S.E. (Sergio), Ferrari, R. (Raffaele), Yokoyama, J.S. (Jennifer S.), Hernandez, D.G. (Dena), Nalls, M.A. (Michael), Rohrer, J.D. (Jonathan), Ramasamy, A. (Adaikalavan), Kwok, J.B.J. (John), Dobson-Stone, C. (Carol), Schofield, P.R. (P. R.), Halliday, G.M. (Glenda Margaret), Hodges, J. (John), Piguet, O. (Olivier), Bartley, L. (Lauren), Thompson, E. (E.), Haan, E. (Eric), Hernández, I. (Isabel), Ruiz, A. (A.), Boada, M. (M.), Borroni, B. (Barbara), Padovani, A. (Alessandro), Cruchaga, C. (C.), Cairns, N.J. (Nigel), Benussi, L. (Luisa), Binetti, G. (Giuliano), Ghidoni, R. (R.), Forloni, G. (Gianluigi), Albani, D. (D.), Galimberti, D. (Daniela), Fenoglio, C. (Chiara), Serpente, M. (Maria), Scarpini, E. (E.), Clarimón, J. (J.), Lleo, A. (Alberto), Blesa, R. (Rafael), Landqvist Waldö, M. (M.), Nilsson, K. (K.), Nilsson, C. (Christer), Mackenzie, I.R.A. (Ian), Hsiung, G.Y.R. (Ging-Yuek), Mann, D.M.A. (D. M.A.), Grafman, J. (Jordan), Morris, C.M. (Chris), Attems, J. (Johannes), Griffiths, T.D. (Timothy), McKeith, I.G. (Ian), Thomas, A.W. (Alan), Pietrini, P. (P.), Huey, E.D. (Edward), Wassermann, E.M. (Eric), Baborie, A. (Atik), Jaros, J.A.J. (Julian), Tierney, M.C. (M. C.), Pastor, P. (P.), Razquin, C. (Cristina), Ortega-Cubero, S. (S.), Alonso, E. (E.), Perneczky, R. (Robert), Diehl-Schmid, J. (Janine), Alexopoulos, E.C. (Evangelos), Kurz, A., Rainero, I. (Innocenzo), Rubino, M. (Maurizio), Pinessi, L. (Lorenzo), Rogaeva, E. (Ekaterina), St. George-Hyslop, P. (Peter), Rossi, G. (G.), Tagliavini, F. (F.), Giaccone, G. (Giuseppe), Rowe, J.B. (James), Schlachetzki, J.C.M. (Johannes C.), Uphill, J. (James), Collinge, J. (J.), Mead, S. (S.), Danek, A. (A.), Deerlin, V.M. (Vivianna), Grossman, M. (Murray), Trojanowski, J.Q. (J. Q.), Zee, J. (Jill) van der, Cruts, M. (Marc), Broeckhoven, C. (Christine) van, Cappa, S.F. (Stefano), Leber, I. (Isabelle), Hannequin, D. (Didier), Golfier, V. (Véronique), Vercelletto, M. (Martine), Brice, A. (A.), Nacmias, B. (Benedetta), Sorbi, S. (Sandro), Bagnoli, S. (Silvia), Piaceri, I. (Irene), Nielsen, J.E. (J. E.), Hjermind, L.E. (Lena), Riemenschneider, M. (M.), Mayhaus, M. (Manuel), Ibach, B. (Bernd), Gasparoni, G. (Gilles), Pichler, I. (Irene), Gu, W. (W.), Rossor, M. (Martin), Fox, N.C. (Nick), Warren, J.D. (Jason), Spillantini, M.G., Morris, H. (Huw), Rizzu, P. (Patrizia), Heutink, P. (Peter), Snowden, J. (Julie), Rollinson, S. (Sara), Richardson, A. (Anna), Gerhard, A. (Alex), Bruni, A.C. (Amalia), Maletta, R. (Raffaele), Frangipane, F. (Francesca), Cupidi, C. (Chiara), Bernardi, L. (Livia), Anfossi, M. (Maria), Gallo, V. (Valentina), Conidi, A. (Andrea), Smirne, N. (Nicoletta), Rademakers, S. (Suzanne), Baker, M.C. (Matthew), Dickson, D. (Dennis), Graff-Radford, N.R. (Neill), Petersen, R.C. (R. C.), Knopman, D.S. (David), Josephs, K.A. (Keith), Boeve, B.F. (Bradley), Parisi, J.E. (Joseph), Karydas, A.M. (A. M.), Rosen, H. (H.), Swieten, J.C. (John) van, Dopper, E.G.P. (Elise), Seelaar, H. (H.), Pijnenburg, Y.A.L. (Yolande), Scheltens, P. (Philip), Logroscino, G. (Giancarlo), Capozzo, R. (Rosa), Novelli, V. (Valeria), Puca, A.A. (Annibale), Franceschi, C. (Claudio), Postiglione, A. (Alfredo), Milan, D.J. (David), Sorrentino, D. (Dario), Kristiansen, M. (Mark), Chiang, Y.T., Graff, C. (C.), Pasquier, F. (Florence), Rollin, A. (A.), Deramecourt, V. (Vincent), Lebouvier, T. (T.), Kapogiannis, D. (Dimitrios), Ferrucci, L. (L.), Pickering-Brown, S. (Stuart), Singleton, A. (Andrew), Bonham, L.W. (Luke W.), Steele, N.Z.R. (Natasha Z. R.), Karch, C.M. (Celeste M.), Broce, I. (Iris), Geier, E.G. (Ethan G.), Wen, N.L. (Natalie L.), Momeni, P. (Parastoo), Hardy, J. (John), Miller, Z.A. (Zachary A.), Gorno-Tempini, M.L. (Maria Luisa), Hess, C.P. (Christopher P.), Lewis, P. (Patrick), Miller, B.L. (Bruce Lars), Seeley, W.W. (William W.), Manzoni, C. (Claudia), Desikan, R.S. (Rahul S.), Baranzini, S.E. (Sergio), Ferrari, R. (Raffaele), Yokoyama, J.S. (Jennifer S.), Hernandez, D.G. (Dena), Nalls, M.A. (Michael), Rohrer, J.D. (Jonathan), Ramasamy, A. (Adaikalavan), Kwok, J.B.J. (John), Dobson-Stone, C. (Carol), Schofield, P.R. (P. R.), Halliday, G.M. (Glenda Margaret), Hodges, J. (John), Piguet, O. (Olivier), Bartley, L. (Lauren), Thompson, E. (E.), Haan, E. (Eric), Hernández, I. (Isabel), Ruiz, A. (A.), Boada, M. (M.), Borroni, B. (Barbara), Padovani, A. (Alessandro), Cruchaga, C. (C.), Cairns, N.J. (Nigel), Benussi, L. (Luisa), Binetti, G. (Giuliano), Ghidoni, R. (R.), Forloni, G. (Gianluigi), Albani, D. (D.), Galimberti, D. (Daniela), Fenoglio, C. (Chiara), Serpente, M. (Maria), Scarpini, E. (E.), Clarimón, J. (J.), Lleo, A. (Alberto), Blesa, R. (Rafael), Landqvist Waldö, M. (M.), Nilsson, K. (K.), Nilsson, C. (Christer), Mackenzie, I.R.A. (Ian), Hsiung, G.Y.R. (Ging-Yuek), Mann, D.M.A. (D. M.A.), Grafman, J. (Jordan), Morris, C.M. (Chris), Attems, J. (Johannes), Griffiths, T.D. (Timothy), McKeith, I.G. (Ian), Thomas, A.W. (Alan), Pietrini, P. (P.), Huey, E.D. (Edward), Wassermann, E.M. (Eric), Baborie, A. (Atik), Jaros, J.A.J. (Julian), Tierney, M.C. (M. C.), Pastor, P. (P.), Razquin, C. (Cristina), Ortega-Cubero, S. (S.), Alonso, E. (E.), Perneczky, R. (Robert), Diehl-Schmid, J. (Janine), Alexopoulos, E.C. (Evangelos), Kurz, A., Rainero, I. (Innocenzo), Rubino, M. (Maurizio), Pinessi, L. (Lorenzo), Rogaeva, E. (Ekaterina), St. George-Hyslop, P. (Peter), Rossi, G. (G.), Tagliavini, F. (F.), Giaccone, G. (Giuseppe), Rowe, J.B. (James), Schlachetzki, J.C.M. (Johannes C.), Uphill, J. (James), Collinge, J. (J.), Mead, S. (S.), Danek, A. (A.), Deerlin, V.M. (Vivianna), Grossman, M. (Murray), Trojanowski, J.Q. (J. Q.), Zee, J. (Jill) van der, Cruts, M. (Marc), Broeckhoven, C. (Christine) van, Cappa, S.F. (Stefano), Leber, I. (Isabelle), Hannequin, D. (Didier), Golfier, V. (Véronique), Vercelletto, M. (Martine), Brice, A. (A.), Nacmias, B. (Benedetta), Sorbi, S. (Sandro), Bagnoli, S. (Silvia), Piaceri, I. (Irene), Nielsen, J.E. (J. E.), Hjermind, L.E. (Lena), Riemenschneider, M. (M.), Mayhaus, M. (Manuel), Ibach, B. (Bernd), Gasparoni, G. (Gilles), Pichler, I. (Irene), Gu, W. (W.), Rossor, M. (Martin), Fox, N.C. (Nick), Warren, J.D. (Jason), Spillantini, M.G., Morris, H. (Huw), Rizzu, P. (Patrizia), Heutink, P. (Peter), Snowden, J. (Julie), Rollinson, S. (Sara), Richardson, A. (Anna), Gerhard, A. (Alex), Bruni, A.C. (Amalia), Maletta, R. (Raffaele), Frangipane, F. (Francesca), Cupidi, C. (Chiara), Bernardi, L. (Livia), Anfossi, M. (Maria), Gallo, V. (Valentina), Conidi, A. (Andrea), Smirne, N. (Nicoletta), Rademakers, S. (Suzanne), Baker, M.C. (Matthew), Dickson, D. (Dennis), Graff-Radford, N.R. (Neill), Petersen, R.C. (R. C.), Knopman, D.S. (David), Josephs, K.A. (Keith), Boeve, B.F. (Bradley), Parisi, J.E. (Joseph), Karydas, A.M. (A. M.), Rosen, H. (H.), Swieten, J.C. (John) van, Dopper, E.G.P. (Elise), Seelaar, H. (H.), Pijnenburg, Y.A.L. (Yolande), Scheltens, P. (Philip), Logroscino, G. (Giancarlo), Capozzo, R. (Rosa), Novelli, V. (Valeria), Puca, A.A. (Annibale), Franceschi, C. (Claudio), Postiglione, A. (Alfredo), Milan, D.J. (David), Sorrentino, D. (Dario), Kristiansen, M. (Mark), Chiang, Y.T., Graff, C. (C.), Pasquier, F. (Florence), Rollin, A. (A.), Deramecourt, V. (Vincent), Lebouvier, T. (T.), Kapogiannis, D. (Dimitrios), Ferrucci, L. (L.), Pickering-Brown, S. (Stuart), and Singleton, A. (Andrew)

Abstract

The semantic variant of primary progressive aphasia (svPPA) is a clinical syndrome characterized by neurodegeneration and progressive loss of semantic knowledge. Unlike many other forms of frontotemporal lobar degeneration (FTLD), svPPA has a highly consistent underlying pathology composed of TDP-43 (a regulator of RNA and DNA transcription metabolism). Previous genetic studies of svPPA are limited by small sample sizes and a paucity of common risk variants. Despite this, svPPA’s relatively homogenous clinicopathologic phenotype makes it an ideal investigative model to examine genetic processes that may drive neurodegenerative disease. In this study, we used GWAS metadata, tissue samples from pathologically confirmed frontotemporal lobar degeneration, and in silico techniques to identify and characterize protein interaction networks associated with svPPA risk. We identified 64 svPPA risk genes that interact at the protein level. The protein pathways represented in this svPPA gene network are critical regulators of RNA metabolism

Published
2019
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3. Frontotemporal dementia and its subtypes: A genome-wide association study

Author

Ferrari, R. (Roberto), Hernandez, D.G. (Dena), Nalls, M.A. (Michael), Rohrer, J.D. (Jonathan), Ramasamy, A. (Adaikalavan), Kwok, J.B.J. (John), Dobson-Stone, C. (Carol), Brooks, W.S. (William), Schofield, C.J. (Christopher), Halliday, G.M. (Glenda Margaret), Hodges, J. (John), Piguet, O. (Olivier), Bartley, L. (Lauren), Thompson, E. (Elizabeth), Haan, E. (Eric), Hernández, I. (Isabel), Ruiz, A. (Agustin), Boada, M. (Mercè), Borroni, B. (Barbara), Padovani, A. (Alessandro), Cruchaga, C. (Carlos), Cairns, N.J. (Nigel), Benussi, L. (Luisa), Binetti, G. (Giuliano), Ghidoni, R. (Roberta), Forloni, G. (Gianluigi), Galimberti, D. (Daniela), Fenoglio, C. (Chiara), Serpente, M. (Maria), Scarpini, E. (Elio), Clarimon, J. (Jordi), Lleo, A. (Alberto), Blesa, R. (Rafael), Waldö, M.L. (Maria Landqvist), Nilsson, K. (Karin), Nilsson, C. (Christer), Mackenzie, I.R.A. (Ian), Hsiung, G.Y.R. (Ging-Yuek), Mann, D.M.A. (David), Grafman, J. (Jordan), Morris, C.M. (Chris), Attems, J. (Johannes), Griffiths, T.D. (Timothy), McKeith, I.G. (Ian), Thomas, A.W. (Alan), Pietrini, P. (P.), Huey, E.D. (Edward), Wassermann, E.M. (Eric), Baborie, A. (Atik), Jaros, J.A.J. (Julian), Tierney, M.C. (Michael), Pastor, P. (Pau), Razquin, C. (Cristina), Ortega-Cubero, S. (Sara), Alonso, E. (Elena), Perneczky, R. (Robert), Diehl-Schmid, J. (Janine), Alexopoulos, E.C. (Evangelos), Kurz, A., Rainero, I. (Innocenzo), Rubino, M. (Maurizio), Pinessi, L. (Lorenzo), Rogaeva, E. (Ekaterina), St George-Hyslop, P.H. (Peter), Rossi, G. (Giulio) de, Tagliavini, F. (Fabrizio), Giaccone, G. (Giuseppe), Rowe, J.B. (James), Schlachetzki, J.C.M. (Johannes C.), Uphill, J. (James), Collinge, J. (John), Mead, S. (Simon), Danek, A. (Adrian), Deerlin, V.M. (Vivianna), Grossman, M. (Murray), Trojanowski, J.Q. (John), Zee, J. (Jill) van der, Deschamps, J. (Jacqueline), Langenhove, T. (Tim) van, Cruts, M. (Marc), Broeckhoven, C. (Christine) van, Cappa, S.F. (Stefano), Le Ber, I. (Isabelle), Hannequin, D. (Didier), Golfier, V. (Véronique), Vercelletto, M. (Martine), Brice, A., Nacmias, B. (Benedetta), Sorbi, S. (Sandro), Bagnoli, S. (Silvia), Piaceri, I. (Irene), Nielsen, J.E. (Jorgen), Hjermind, L.E. (Lena), Riemenschneider, M. (Matthias), Mayhaus, M. (Manuel), Ibach, B. (Bernd), Gasparoni, G. (Gilles), Pichler, I. (Irene), Gu, W. (Wei), Rossor, M. (Martin), Fox, N.C. (Nick), Warren, J.D. (Jason), Spillantini, M.G., Morris, H. (Huw), Rizzu, P. (Patrizia), Heutink, P. (Peter), Snowden, J. (Julie), Rollinson, S. (Sara), Richardson, A. (Anna), Gerhard, A. (Alex), Bruni, A.C. (Amalia), Maletta, R. (Raffaele), Frangipane, F. (Francesca), Cupidi, C. (Chiara), Bernardi, L. (Livia), Anfossi, M. (Maria), Gallo, V. (Valentina), Conidi, A. (Andrea), Smirne, N. (Nicoletta), Rademakers, S. (Suzanne), Baker, M.C. (Matthew), Dickson, D.W. (Dennis), Graff-Radford, N.R. (Neill), Petersen, R.C. (Ronald), Knopman, D.S. (David), Josephs, K.A. (Keith), Boeve, B.F. (Bradley), Parisi, J.E. (Joseph), Seeley, W. (William), Miller, B.L. (Bruce Lars), Karydas, A. (Anna), Rosen, H. (Howard), Swieten, J.C. (John) van, Dopper, E.G.P. (Elise), Seelaar, H. (Harro), Pijnenburg, Y.A.L. (Yolande), Scheltens, P. (Philip), Logroscino, G. (Giancarlo), Capozzo, R. (Rosa), Novelli, V. (Valeria), Puca, A.A. (Annibale), Franceschi, C. (Claudio), Postiglione, A. (Alfredo), Milan, D.J. (David), Sorrentino, D. (Dario), Kristiansen, M. (Mark), Chiang, Y.T., Graff, M.J. (Maud J.L.), Pasquier, F. (Florence), Rollin, P.E. (Pierre), Deramecourt, V. (Vincent), Lebert, F. (Florence), Kapogiannis, D. (Dimitrios), Ferrucci, L. (Luigi), Pickering-Brown, S. (Stuart), Singleton, A. (Andrew), Hardy, J. (John), Momeni, M. (Mona), Ferrari, R. (Roberto), Hernandez, D.G. (Dena), Nalls, M.A. (Michael), Rohrer, J.D. (Jonathan), Ramasamy, A. (Adaikalavan), Kwok, J.B.J. (John), Dobson-Stone, C. (Carol), Brooks, W.S. (William), Schofield, C.J. (Christopher), Halliday, G.M. (Glenda Margaret), Hodges, J. (John), Piguet, O. (Olivier), Bartley, L. (Lauren), Thompson, E. (Elizabeth), Haan, E. (Eric), Hernández, I. (Isabel), Ruiz, A. (Agustin), Boada, M. (Mercè), Borroni, B. (Barbara), Padovani, A. (Alessandro), Cruchaga, C. (Carlos), Cairns, N.J. (Nigel), Benussi, L. (Luisa), Binetti, G. (Giuliano), Ghidoni, R. (Roberta), Forloni, G. (Gianluigi), Galimberti, D. (Daniela), Fenoglio, C. (Chiara), Serpente, M. (Maria), Scarpini, E. (Elio), Clarimon, J. (Jordi), Lleo, A. (Alberto), Blesa, R. (Rafael), Waldö, M.L. (Maria Landqvist), Nilsson, K. (Karin), Nilsson, C. (Christer), Mackenzie, I.R.A. (Ian), Hsiung, G.Y.R. (Ging-Yuek), Mann, D.M.A. (David), Grafman, J. (Jordan), Morris, C.M. (Chris), Attems, J. (Johannes), Griffiths, T.D. (Timothy), McKeith, I.G. (Ian), Thomas, A.W. (Alan), Pietrini, P. (P.), Huey, E.D. (Edward), Wassermann, E.M. (Eric), Baborie, A. (Atik), Jaros, J.A.J. (Julian), Tierney, M.C. (Michael), Pastor, P. (Pau), Razquin, C. (Cristina), Ortega-Cubero, S. (Sara), Alonso, E. (Elena), Perneczky, R. (Robert), Diehl-Schmid, J. (Janine), Alexopoulos, E.C. (Evangelos), Kurz, A., Rainero, I. (Innocenzo), Rubino, M. (Maurizio), Pinessi, L. (Lorenzo), Rogaeva, E. (Ekaterina), St George-Hyslop, P.H. (Peter), Rossi, G. (Giulio) de, Tagliavini, F. (Fabrizio), Giaccone, G. (Giuseppe), Rowe, J.B. (James), Schlachetzki, J.C.M. (Johannes C.), Uphill, J. (James), Collinge, J. (John), Mead, S. (Simon), Danek, A. (Adrian), Deerlin, V.M. (Vivianna), Grossman, M. (Murray), Trojanowski, J.Q. (John), Zee, J. (Jill) van der, Deschamps, J. (Jacqueline), Langenhove, T. (Tim) van, Cruts, M. (Marc), Broeckhoven, C. (Christine) van, Cappa, S.F. (Stefano), Le Ber, I. (Isabelle), Hannequin, D. (Didier), Golfier, V. (Véronique), Vercelletto, M. (Martine), Brice, A., Nacmias, B. (Benedetta), Sorbi, S. (Sandro), Bagnoli, S. (Silvia), Piaceri, I. (Irene), Nielsen, J.E. (Jorgen), Hjermind, L.E. (Lena), Riemenschneider, M. (Matthias), Mayhaus, M. (Manuel), Ibach, B. (Bernd), Gasparoni, G. (Gilles), Pichler, I. (Irene), Gu, W. (Wei), Rossor, M. (Martin), Fox, N.C. (Nick), Warren, J.D. (Jason), Spillantini, M.G., Morris, H. (Huw), Rizzu, P. (Patrizia), Heutink, P. (Peter), Snowden, J. (Julie), Rollinson, S. (Sara), Richardson, A. (Anna), Gerhard, A. (Alex), Bruni, A.C. (Amalia), Maletta, R. (Raffaele), Frangipane, F. (Francesca), Cupidi, C. (Chiara), Bernardi, L. (Livia), Anfossi, M. (Maria), Gallo, V. (Valentina), Conidi, A. (Andrea), Smirne, N. (Nicoletta), Rademakers, S. (Suzanne), Baker, M.C. (Matthew), Dickson, D.W. (Dennis), Graff-Radford, N.R. (Neill), Petersen, R.C. (Ronald), Knopman, D.S. (David), Josephs, K.A. (Keith), Boeve, B.F. (Bradley), Parisi, J.E. (Joseph), Seeley, W. (William), Miller, B.L. (Bruce Lars), Karydas, A. (Anna), Rosen, H. (Howard), Swieten, J.C. (John) van, Dopper, E.G.P. (Elise), Seelaar, H. (Harro), Pijnenburg, Y.A.L. (Yolande), Scheltens, P. (Philip), Logroscino, G. (Giancarlo), Capozzo, R. (Rosa), Novelli, V. (Valeria), Puca, A.A. (Annibale), Franceschi, C. (Claudio), Postiglione, A. (Alfredo), Milan, D.J. (David), Sorrentino, D. (Dario), Kristiansen, M. (Mark), Chiang, Y.T., Graff, M.J. (Maud J.L.), Pasquier, F. (Florence), Rollin, P.E. (Pierre), Deramecourt, V. (Vincent), Lebert, F. (Florence), Kapogiannis, D. (Dimitrios), Ferrucci, L. (Luigi), Pickering-Brown, S. (Stuart), Singleton, A. (Andrew), Hardy, J. (John), and Momeni, M. (Mona)

Abstract

Background: Frontotemporal dementia (FTD) is a complex disorder characterised by a broad range of clinical manifestations, differential pathological signatures, and genetic variability. Mutations in three genes-MAPT, GRN, and C9orf72-have been associated with FTD. We sought to identify novel genetic risk loci associated with the disorder. Methods: We did a two-stage genome-wide association study on clinical FTD, analysing samples from 3526 patients with FTD and 9402 h

Published
2014
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4. Linkage and association studies identify a novel locus for Alzheimer disease at 7q36 in a Dutch population-based sample

Author

Rijk, P. (Peter) de, Cruts, M. (Marc), Sleegers, K. (Kristel), Dermaut, B. (Bart), Theuns, J. (Jessie), Weckx, S., Duijn, C.M. (Cornelia) van, Pooter, T., Corsmit, E., Del-Favero, J. (Jurgen), Swieten, J.C. (John) van, Aulchenko, Y.S. (Yurii), Rademakers, R. (Rosa), Broeck, M. (Marleen) van den, Broeckhoven, C. (Christine) van, Rijk, P. (Peter) de, Cruts, M. (Marc), Sleegers, K. (Kristel), Dermaut, B. (Bart), Theuns, J. (Jessie), Weckx, S., Duijn, C.M. (Cornelia) van, Pooter, T., Corsmit, E., Del-Favero, J. (Jurgen), Swieten, J.C. (John) van, Aulchenko, Y.S. (Yurii), Rademakers, R. (Rosa), Broeck, M. (Marleen) van den, and Broeckhoven, C. (Christine) van

Abstract

We obtained conclusive linkage of Alzheimer disease (AD) with a candidate region of 19.7 cM at 7q36 in an extended multiplex family, family 1270, ascertained in a population-based study of early-onset AD in the northern Netherlands. Single-nucleotide polymorphism and haplotype association analyses of a Dutch patient-control sample further supported the linkage at 7q36. In addition, we identified a shared haplotype at 7q36 between family 1270 and three of six multiplex AD-affected families from the same geographical region, which is indicative of a founder effect and defines a priority region of 9.3 cM. Mutation analysis of coding exons of 29 candidate genes identified one linked synonymous mutation, g.38030G-->C in exon 10, that affected codon 626 of the PAX transactivation domain interacting protein gene (PAXIP1). It remains to be determined whether PAXIP1 has a functional role in the expression of AD in family 1270 or whether another mutation at this locus explains the observed linkage and sharing. Together, our linkage data from the informative family 1270 and the association data in the population-based early-onset AD patient-control sample strongly support the identification of a novel AD locus at 7q36 and re-emphasize the genetic heterogeneity of AD.

Published
2005

5. Octapeptide repeat insertions in the prion protein gene and early onset dementia

Author

Croes, E.A. (Esther), Theuns, J. (Jessie), Houwing-Duistermaat, J.J. (Jeanine), Dermaut, B. (Bart), Sleegers, K. (Kristel), Roks, C.M.A.A. (Gerwin), Broeckhoven, C. (Christine) van, Harten, B. van, Swieten, J.C. (John) van, Cruts, M. (Marc), Duijn, C.M. (Cornelia) van, Croes, E.A. (Esther), Theuns, J. (Jessie), Houwing-Duistermaat, J.J. (Jeanine), Dermaut, B. (Bart), Sleegers, K. (Kristel), Roks, C.M.A.A. (Gerwin), Broeckhoven, C. (Christine) van, Harten, B. van, Swieten, J.C. (John) van, Cruts, M. (Marc), and Duijn, C.M. (Cornelia) van

Abstract

Objectives: The most common familial early onset dementia mutations are found in the genes involved in Alzheimer's disease; the amyloid precursor protein (APP) and the presenilin 1 and 2 (PSEN1 and 2) genes; the prion protein gene (PRNP) may be involved. Methods: Following identification of a two-octapeptide repeat insertion in PRNP, we conducted a meta-analysis to investigate the relation of number of PRNP octapeptide repeats with age at disease onset and duration of illness; identifying 55 patients with PRNP octapeptide repeat insertions. We used a linear mixed effects model to assess the relation of number of repeats with age at disease onset, and studied the effect of the number of inserted octapeptide repeats on disease duration with a Cox proportional hazards regression analysis. Results: We found an increasing number of repeats associated with younger age at onset (p<0.001). Duration of the disease decreased significantly with the length of the octapeptide repeat (p<0,001) when adjusting for age at onset. Conclusions: Our findings show significant inverse associations of the length of the PRNP octapeptide repeat with age at disease onset and disease duration in the spongiform encephalopathies.

Published
2004
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7. Octapeptide repeat insertions in the prion protein gene and early onset dementia

Author

Croes, E.A. (Esther), Houwing-Duistermaat, J.J. (Jeanine), Sleegers, K. (Kristel), Forey, F., Harten, B. van, Cruts, M. (Marc), Duijn, C.M. (Cornelia) van, Theuns, J. (Jessie), Swieten, J.C. (John) van, Broeckhoven, C. (Christine) van, Croes, E.A. (Esther), Houwing-Duistermaat, J.J. (Jeanine), Sleegers, K. (Kristel), Forey, F., Harten, B. van, Cruts, M. (Marc), Duijn, C.M. (Cornelia) van, Theuns, J. (Jessie), Swieten, J.C. (John) van, and Broeckhoven, C. (Christine) van

Abstract

OBJECTIVES: The most common familial early onset dementia mutations are found in the genes involved in Alzheimer's disease; the amyloid precursor protein (APP) and the presenilin 1 and 2 (PSEN1 and 2) genes; the prion protein gene (PRNP) may be involved. METHODS: Following identification of a two-octapeptide repeat insertion in PRNP, we conducted a meta-analysis to investigate the relation of number of PRNP octapeptide repeats with age at disease onset and duration of illness; identifying 55 patients with PRNP octapeptide repeat insertions. We used a linear mixed effects model to assess the relation of number of repeats with age at disease onset, and studied the effect of the number of inserted octapeptide repeats on disease duration with a Cox proportional hazards regression analysis. RESULTS: We found an increasing number of repeats associated with younger age at onset (p < 0.001). Duration of the disease decreased significantly with the length of the octapeptide repeat (p < 0.001) when adjusting for age at onset. CONCLUSIONS: Our findings show significant inverse associations of the length of the PRNP octapeptide repeat with age at disease onset and disease duration in the spongiform encephalopathies

Published
2004

8. Familial clustering and genetic risk for dementia in a genetically isolated Dutch population.

Author

Sleegers, K. (Kristel), Forey, F., Theuns, J. (Jessie), Aulchenko, Y.S. (Yurii), Rademakers, S. (Suzanne), Cruts, M. (Marc), Gool, W.A. (Willem) van, Heutink, P. (Peter), Oostra, B.A. (Ben), Swieten, J.C. (John) van, Duijn, C.M. (Cornelia) van, Broeckhoven, C. (Christine) van, Sleegers, K. (Kristel), Forey, F., Theuns, J. (Jessie), Aulchenko, Y.S. (Yurii), Rademakers, S. (Suzanne), Cruts, M. (Marc), Gool, W.A. (Willem) van, Heutink, P. (Peter), Oostra, B.A. (Ben), Swieten, J.C. (John) van, Duijn, C.M. (Cornelia) van, and Broeckhoven, C. (Christine) van

Abstract

Despite advances in elucidating the genetic epidemiology of Alzheimer's disease and frontotemporal dementia, the aetiology for most patients with dementia remains unclear. We examined the genetic epidemiology of dementia in a recent genetically isolated Dutch population founded around 1750. The series of 191 patients ascertained comprised 122 probable Alzheimer's disease patients with late onset and 17 with early onset, and 22 with possible Alzheimer's disease. It further included 10 patients with vascular dementia, nine with Lewy body dementia and six with frontotemporal dementia. All patients, except those with vascular dementia, were more closely related than healthy individuals from the same area. Clustering was strongest for patients with early-onset Alzheimer's disease or Lewy body dementia. Although 14% of late-onset Alzheimer's disease patients had evidence of autosomal dominant disease, consanguinity was found in three late-onset Alzheimer's disease patients, suggesting a recessive or polygenic model underlying the trait. We found no clustering of vascular dementia, implying a difference in genetic risk for late-onset Alzheimer's disease and vascular dementia. Mutations in known genes could not explain the occurrence of dementia, but the population attributable proportion of apolipoprotein E gene (APOE*4) was high (45%) due to a high frequency of APOE*4 carriers. Earlier identified regions on chromosomes 10 and 12, nor the effect of the alpha-2-macroglobulin (A2M) I/D polymorphism on Alzheimer's disease could be confirmed in our study. We did find evidence for association between the A2M D-allele and Lewy body dementia. Our data showed a strong familial clustering of various forms of dementia in this isolated Dutch population. A high percentage of late-onset Alzheimer's disease could be explained by APOE*4, but 55% of its origin is still unknown.

Published
2004
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9. Early cognitive decline is associated with prion protein codon 129 polymorphism

Author

Croes, E.A. (Esther), Dermaut, B. (Bart), Houwing-Duistermaat, J.J. (Jeanine), Broeck, M. (Marleen) van den, Cruts, M. (Marc), Breteler, M.M.B. (Monique), Hofman, A. (Albert), Broeckhoven, C. (Christine) van, Duijn, C.M. (Cornelia) van, Croes, E.A. (Esther), Dermaut, B. (Bart), Houwing-Duistermaat, J.J. (Jeanine), Broeck, M. (Marleen) van den, Cruts, M. (Marc), Breteler, M.M.B. (Monique), Hofman, A. (Albert), Broeckhoven, C. (Christine) van, and Duijn, C.M. (Cornelia) van

Published
2003
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10. Apolipoprotein E4 in the temporal variant of frontotemporal dementia

Author

Rosso, S.M. (Sonia), Roks, C.M.A.A. (Gerwin), Broeckhoven, C. (Christine) van, Cruts, M. (Marc), Duijn, C.M. (Cornelia) van, Swieten, J.C. (John) van, Rosso, S.M. (Sonia), Roks, C.M.A.A. (Gerwin), Broeckhoven, C. (Christine) van, Cruts, M. (Marc), Duijn, C.M. (Cornelia) van, and Swieten, J.C. (John) van

Published
2002
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11. Apolipoprotein E4 in the temporal variant of frontotemporal dementia

Author

Rosso, S.M. (Sonia), Forey, F., Cruts, M. (Marc), Duijn, C.M. (Cornelia) van, Swieten, J.C. (John) van, Heutink, P. (Peter), Broeckhoven, C. (Christine) van, Rosso, S.M. (Sonia), Forey, F., Cruts, M. (Marc), Duijn, C.M. (Cornelia) van, Swieten, J.C. (John) van, Heutink, P. (Peter), and Broeckhoven, C. (Christine) van

Published
2002

12. Apolipoprotein E and Carotid Artery Atherosclerosis. The Rotterdam Study

Author

Slooter, A.J.C. (Arjen), Bots, M.L. (Michiel), Havekes, L.M., Sol, A.I. (Antonio Iglesias), Cruts, M. (Marc), Grobbee, D.E. (Diederick), Hofman, A. (Albert), Broeckhoven, C. (Christine) van, Duijn, C.M. (Cornelia) van, Witteman, J.C.M. (Jacqueline), Slooter, A.J.C. (Arjen), Bots, M.L. (Michiel), Havekes, L.M., Sol, A.I. (Antonio Iglesias), Cruts, M. (Marc), Grobbee, D.E. (Diederick), Hofman, A. (Albert), Broeckhoven, C. (Christine) van, Duijn, C.M. (Cornelia) van, and Witteman, J.C.M. (Jacqueline)

Abstract

BACKGROUND AND PURPOSE: Carotid artery atherosclerosis is a strong predictor for future stroke. It is yet unclear whether the apolipoprotein E polymorphism (APOE) is related to atherosclerosis in the carotid arteries. The aim of the present study was to investigate the role of APOE in carotid artery atherosclerosis. METHODS: A population-based cross-sectional study was performed on 5401 subjects. Atherosclerosis was noninvasively assessed by the common carotid artery intima-media wall thickness and the presence of plaques in the carotid arteries. The relationship of the 6 APOE genotypes with these 2 indicators was studied with linear and logistic regression analysis, respectively, with adjustments for age and sex. RESULTS: Carriers of the E2E3 genotype had a thinner intima-media wall thickness (mean difference, -0.02 mm; 95% CI, -0.03 to -0.01 mm) and fewer plaques (odds ratio for >3 plaques at 6 sites, 0.6; 95% CI, 0.4 to 0.8) than the most common group, E3E3. The E4E4 group had slightly more atherosclerosis, but this was not statistically significant. Adjusting for the level of the apolipoprotein E protein (apoE) in serum or total or HDL cholesterol did not essentially change these findings. CONCLUSIONS: Our results suggest that APOE*4 is not an important risk factor for carotid artery atherosclerosis. The inverse relationship of E2E3 with carotid artery atherosclerosis seems to be independent of serum apoE and total and HDL cholesterol levels. However, the low frequency, together with the small effects, implies that any protective effect of E2E3 on carotid artery atherosclerosis is limited.

Published
2001
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13. Apoplipoprotein E and longevity: the Rotterdam study

Author

Slooter, A.J.C. (Arjen), Cruts, M. (Marc), Broeckhoven, C. (Christine) van, Duijn, C.M. (Cornelia) van, Hofman, A. (Albert), Slooter, A.J.C. (Arjen), Cruts, M. (Marc), Broeckhoven, C. (Christine) van, Duijn, C.M. (Cornelia) van, and Hofman, A. (Albert)

Published
2001
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14. Genetic variability in the regulatory region of presenilin 1 associated with risk for Alzheimer's disease and variable

Author

Theuns, J. (Jessie), Del-Favero, J. (Jurgen), Dermaut, B. (Bart), Duijn, C.M. (Cornelia) van, Serneels, S. (Sally), Corsmit, E., Cruts, M. (Marc), Backhovens, H. (Hubert), Broeck, M. (Marleen) van den, Broeckhoven, C. (Christine) van, Theuns, J. (Jessie), Del-Favero, J. (Jurgen), Dermaut, B. (Bart), Duijn, C.M. (Cornelia) van, Serneels, S. (Sally), Corsmit, E., Cruts, M. (Marc), Backhovens, H. (Hubert), Broeck, M. (Marleen) van den, and Broeckhoven, C. (Christine) van

Abstract

Mutations in the presenilin 1 ( PSEN1 ) gene have been implicated in 18-50% of autosomal dominant cases with early-onset Alzheimer's disease (EOAD). Also, PSEN1 has been suggested as a potential risk gene in late-onset AD cases. We recently showed genetic association in a population-based study of EOAD, pointing to the 5' regulatory region of PSEN1. In this study we systematically screened 3.5 kb of the PSEN1 upstream region and found four novel polymorphisms. Genetic analysis confirmed association of two polymorphisms with increased risk for EOAD. In addition, we detected two different mutations in EOAD cases at-280 and-2818 relative to the transcription initiation site in exon 1A of PSEN1. Analysis of the mutant and wild-type-280 variants using luciferase reporter gene expression in transiently transfected neuroblastoma cells showed a 30% decrease in transcriptional activity for the mutant-280G PSEN1 promoter variant compared with the wild-type variant-280C. Our data suggest that the increased risk for EOAD associated with PSEN1 may result from genetic variations in the regulatory region leading to altered expression levels of the PSEN1 protein.

Published
2000

15. Presentation of amyloidosis in carriers of the codon 692 mutation in the amyloid precursor protein gene (APP692)

Author

Forey, F., Tanghe, H.L.J. (Hervé), Niermeijer, M.F. (Martinus), Duijn, C.M. (Cornelia) van, Swieten, J.C. (John) van, Harskamp, F. (Frans) van, Koning, I. (Inge) de, Cruts, M. (Marc), Jonghe, C. (Chris) de, Kumar-Singh, S. (Samir), Tibben, A. (Arend), Broeckhoven, C. (Christine) van, Hofman, A. (Albert), Forey, F., Tanghe, H.L.J. (Hervé), Niermeijer, M.F. (Martinus), Duijn, C.M. (Cornelia) van, Swieten, J.C. (John) van, Harskamp, F. (Frans) van, Koning, I. (Inge) de, Cruts, M. (Marc), Jonghe, C. (Chris) de, Kumar-Singh, S. (Samir), Tibben, A. (Arend), Broeckhoven, C. (Christine) van, and Hofman, A. (Albert)

Abstract

Several mutations in the amyloid precursor protein (APP) gene may lead to either Alzheimer's disease or cerebral haemorrhage due to congophilic amyloid angiopathy (CAA). A single family is known in which both types of pathology are expressed because of a missense mutation at codon 692 of the APP gene (APP692). Here we describe the clinical and pathological expression of APP692 in eight patients with the mutation. Furthermore, 21 first-degree relatives with an a priori risk of 50% of being a carrier were tested for the APP692 mutation and studied for presymptomatic signs by neurological examination, neuropsychological testing and brain MRI. Patients with APP692 presented with haemorrhage, dementia or both. The dementia in patients with the APP692 mutation was compatible with Alzheimer's disease both clinically and neuropathologically. Of the 21 healthy relatives at 50% risk, five carried the APP692 mutation. The presymptomatic carriers showed a subtle, non-significant impairment of cognitive function compared with relatives without APP692. A significant increase in the number of periventricular and subcortical white matter lesions at young age was seen in presymptomatic carriers (mean age 26.4 years). The findings of this study suggest that a single (genetic) mechanism may underlie the pathology of Alzheimer's disease and CAA. These diseases are manifested subclinically by white matter pathology. Further insight into the relationship between CAA and Alzheimer's disease may provide clues about the aetiology of Alzheimer's disease.

Published
2000

16. The Glu318Gly substitution in presenilin 1 is not causally related to Alzheimer disease

Author

Dermaut, B. (Bart), Cruts, M. (Marc), Slooter, A.J.C. (Arjen), Gestel, S. van, Jonghe, C. (Chris) de, Vanderstichele, H.M.J. (Hugo), Vanmechelen, E. (Eugeen), Breteler, M.M.B. (Monique), Duijn, C.M. (Cornelia) van, Broeckhoven, C. (Christine) van, Hofman, A. (Albert), Dermaut, B. (Bart), Cruts, M. (Marc), Slooter, A.J.C. (Arjen), Gestel, S. van, Jonghe, C. (Chris) de, Vanderstichele, H.M.J. (Hugo), Vanmechelen, E. (Eugeen), Breteler, M.M.B. (Monique), Duijn, C.M. (Cornelia) van, Broeckhoven, C. (Christine) van, and Hofman, A. (Albert)

Published
1999

17. Risk estimates of dementia by apolipoprotein E genotypes from a population-based incidence study: the Rotterdam Study

Author

Slooter, A.J.C. (Arjen), Cruts, M. (Marc), Kalmijn, S. (Sandra), Breteler, M.M.B. (Monique), Duijn, C.M. (Cornelia) van, Broeckhoven, C. (Christine) van, Hofman, A. (Albert), Slooter, A.J.C. (Arjen), Cruts, M. (Marc), Kalmijn, S. (Sandra), Breteler, M.M.B. (Monique), Duijn, C.M. (Cornelia) van, Broeckhoven, C. (Christine) van, and Hofman, A. (Albert)

Abstract

OBJECTIVES: To provide risk estimates of dementia and Alzheimer disease as a function of the apolipoprotein E (APOE) genotypes and to assess the proportion of dementia that is attributable to the APOE genotypes. DESIGN: Case-control study nested in a population-based cohort study with a mean (SD) follow-up of 2.1 (0.9) years. SETTING: General population in Rotterdam, the Netherlands. PARTICIPANTS: A total of 134 patients with incident dementia and a random sample of 997 nondemented control subjects. No participant had dementia at baseline. MAIN OUTCOME MEASURES: Odds ratios for dementia and Alzheimer disease, the fraction of dementia attributable to the APOE epsilon4 allele, and the proportion of the variance in age at the onset of dementia explained by the APOE genotypes. RESULTS: Persons with the epsilon4/4 genotype had a more than 10-fold higher risk of dementia (odds ratio, 11.2; 95% confidence interval, 3.6-35.2), and subjects with the epsilon3/4 genotype had a 1.7-fold increased risk of dementia (95% confidence interval, 1.0-2.9) as compared with persons with the epsilon3/3 genotype. The proportion of patients with dementia that is attributable to the epsilon4 allele was estimated to be 20%. The APOE genotypes explained up to 10% of the variance in age at the onset of dementia. The association between the epsilon4 allele and dementia was strongest in the youngest age category and in those with a family history of dementia. CONCLUSIONS: The APOE genotype is an important determinant of the risk of dementia. At a population level, however, other factors than the APOE genotype may play an important role in the cause of dementia.

Published
1998

18. Genetic association of apolipoprotein E with age-related macular degeneration

Author

Kliffen, M. (Mike), Duijn, C.M. (Cornelia) van, Cruts, M. (Marc), Grobbee, D.E. (Diederick), Jong, P.T.V.M. (Paulus) de, Klaver, C.C.W. (Caroline), Broeckhoven, C. (Christine) van, Hofman, A. (Albert), Kliffen, M. (Mike), Duijn, C.M. (Cornelia) van, Cruts, M. (Marc), Grobbee, D.E. (Diederick), Jong, P.T.V.M. (Paulus) de, Klaver, C.C.W. (Caroline), Broeckhoven, C. (Christine) van, and Hofman, A. (Albert)

Abstract

Age-related macular degeneration (AMD) is the most common geriatric eye disorder leading to blindness and is characterized by degeneration of the neuroepithelium in the macular area of the eye. Apolipoprotein E (apoE), the major apolipoprotein of the CNS and an important regulator of cholesterol and lipid transport, appears to be associated with neurodegeneration. The apoE gene (APOE) polymorphism is a strong risk factor for various neurodegenerative diseases, and the apoE protein has been demonstrated in disease-associated lesions of these disorders. Hypothesizing that variants of APOE act as a potential risk factor for AMD, we performed a genetic-association study among 88 AMD cases and 901 controls derived from the population-based Rotterdam Study in the Netherlands. The APOE polymorphism showed a significant association with the risk for AMD; the APOE epsilon4 allele was associated with a decreased risk (odds ratio 0.43 [95% confidence interval 0.21-0. 88]), and the epsilon2 allele was associated with a slightly increased risk of AMD (odds ratio 1.5 [95% confidence interval 0.8-2. 82]). To investigate whether apoE is directly involved in the pathogenesis of AMD, we studied apoE immunoreactivity in 15 AMD and 10 control maculae and found that apoE staining was consistently present in the disease-associated deposits in AMD-maculae-that is, drusen and basal laminar deposit. Our results suggest that APOE is a susceptibility gene for AMD.

Published
1998

19. Estimation of the genetic contribution of presenilin-1 and -2 mutations in a population-based study of presenile Alzheimer disease

Author

Cruts, M. (Marc), St George-Hyslop, P.H. (Peter), Duijn, C.M. (Cornelia) van, Wehnert, A. (Anita), Serneels, S. (Sally), Sherrington, R. (Robin), Hutton, M. (Michael), Hardy, J. (John), Backhovens, H. (Hubert), Broeck, M. (Marleen) van den, Broeckhoven, C. (Christine) van, Hofman, A. (Albert), Cruts, M. (Marc), St George-Hyslop, P.H. (Peter), Duijn, C.M. (Cornelia) van, Wehnert, A. (Anita), Serneels, S. (Sally), Sherrington, R. (Robin), Hutton, M. (Michael), Hardy, J. (John), Backhovens, H. (Hubert), Broeck, M. (Marleen) van den, Broeckhoven, C. (Christine) van, and Hofman, A. (Albert)

Abstract

Two closely related genes, the presenilins ( PS ), located at chromosomes 14q24.3 and 1q42.1, have been identified for autosomal dominant Alzheimer disease (AD) with onset age below 65 years (presenile AD). We performed a systematic mutation analysis of all coding and 5'-non-coding exons of PS -1 and PS -2 in a population-based epidemiological series of 101 unrelated familial and sporadic presenile AD cases. The familial cases included 10 patients of autosomal dominant AD families sampled for linkage analysis studies. In all pati

Published
1998

20. Mutation analysis of the chromosome 14q24.3 dihydrolipoyl succinyltransferase (DLST) gene in patients with early-onset Alzheimer disease

Author

Cruts, M. (Marc), Backhovens, H. (Hubert), Gassen, G. (Geert) van, Theuns, J. (Jessie), Wang, S-Y. (Sheng-Yue), Wehnert, A. (Anita), Duijn, C.M. (Cornelia) van, Karlsson, T. (Thomas), Hofman, A. (Albert), Adolfsson, R., Martin, J-J. (Jean-Jacques), Broeckhoven, C. (Christine) van, Cruts, M. (Marc), Backhovens, H. (Hubert), Gassen, G. (Geert) van, Theuns, J. (Jessie), Wang, S-Y. (Sheng-Yue), Wehnert, A. (Anita), Duijn, C.M. (Cornelia) van, Karlsson, T. (Thomas), Hofman, A. (Albert), Adolfsson, R., Martin, J-J. (Jean-Jacques), and Broeckhoven, C. (Christine) van

Published
1995
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21. Mapping and sequencing the chromosome 14q24.3 dihydrolipoyl succinyltransferase (DLST) gene in patients with early-onset Alzheimer's disease

Author

Cruts, M. (Marc), Gassen, G. (Geert) van, Theuns, J. (Jessie), Wang, S-Y. (Sheng-Yue), Wehnert, A. (Anita), Duijn, C.M. (Cornelia) van, Nylander, P-O., Martin, J-J. (Jean-Jacques), Adolfsson, R., Backhovens, H. (Hubert), Broeckhoven, C. (Christine) van, Hofman, A. (Albert), Cruts, M. (Marc), Gassen, G. (Geert) van, Theuns, J. (Jessie), Wang, S-Y. (Sheng-Yue), Wehnert, A. (Anita), Duijn, C.M. (Cornelia) van, Nylander, P-O., Martin, J-J. (Jean-Jacques), Adolfsson, R., Backhovens, H. (Hubert), Broeckhoven, C. (Christine) van, and Hofman, A. (Albert)

Abstract

Linkage analysis studies have indicated that the chromosome band 14q24.3 harbours a major gene for familial early-onset Alzheimer's disease (AD). Recently we localized the chromosome 14 AD gene (AD3) in the 6.4 cM interval between the markers D14S289 and D14S61. We mapped the gene encoding dihydrolipoyl succinyltransferase (DLST), the E2k component of human alpha-ketoglutarate dehydrogenase complex (KGDHC), in the AD3 candidate region using yeast artificial chromosomes (YACs). The DLST gene is a candidate for the AD3 gene since deficiencies in KGDHC activity have been observed in brain tissue and fibroblasts of AD patients. The 15 exons and the promoter region of the DLST gene were analysed for mutations in chromosome 14 linked AD cases and in two series of unrelated early-onset AD cases (onset age < 55 years). Sequence variations in intronic sequences (introns 3, 5 and 10) or silent mutations in exonic sequences (exons 8 and 14) were identified. However, no AD related mutations were observed, suggesting that the DLST gene is not the chromosome 14 AD3 gene.

Published
1995

22. Apolipoprotein E genotype and association between smoking and early onset Alzheimer's disease.

Author

Duijn, C.M. (Cornelia) van, Knijff, P. (Peter) de, Cruts, M. (Marc), Wehnert, A. (Anita), Havekes, L.M., Broeckhoven, C. (Christine) van, Hofman, A. (Albert), Duijn, C.M. (Cornelia) van, Knijff, P. (Peter) de, Cruts, M. (Marc), Wehnert, A. (Anita), Havekes, L.M., Broeckhoven, C. (Christine) van, and Hofman, A. (Albert)

Abstract

OBJECTIVE--To investigate the hypothesis that differential survival between smokers and non-smokers leading to a decrease in the frequency of the e4 allele of the apolipoprotein E gene may explain the inverse relation between smoking history and early onset Alzheimer's disease. DESIGN--A population based case-control study. SETTING--The four northern provinces of the Netherlands and metropolitan Rotterdam. SUBJECTS--175 patients with early ons

Published
1995

23. Apolipoprotein E4 allele in a population-based study of early-onset Alzheimer's disease

Author

Duijn, C.M. (Cornelia) van, Knijff, P. (Peter) de, Cruts, M. (Marc), Wehnert, A. (Anita), Havekes, L.M. (Louis), Hofman, A. (Albert), Broeckhoven, C. (Christine) van, Duijn, C.M. (Cornelia) van, Knijff, P. (Peter) de, Cruts, M. (Marc), Wehnert, A. (Anita), Havekes, L.M. (Louis), Hofman, A. (Albert), and Broeckhoven, C. (Christine) van

Abstract

Several studies have reported an association of the apolipoprotein E allele epsilon4 (APOE*4) to familial and sporadic late-onset Alzheimer's disease (LOAD). Here we report on the relationship between APOE*4 and early-onset Alzheimer's disease (EOAD) in a Dutch population-based study. The frequency of the APOE*4 allele was 2.3 times higher among EOAD cases compared to controls. Among patients, the allele frequency was 1.6 times higher in those with a positive family history than in those without. A significant increase in risk of EOAD was found for subjects homozygous for APOE*4 regardless of family history of dementia, but an increase in EOAD risk for APOE*4 heterozygotes could only be shown in subjects with a positive family history. Our study demonstrates a significant association between APOE*4 and EOAD which is modified by family history of dementia

Published
1994
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24. Apolipoprotein E4 allele in a population-based study of early-onset Alzheimer's disease

Author

Duijn, C.M. (Cornelia) van, Knijff, P. (Peter) de, Cruts, M. (Marc), Wehnert, A. (Anita), Havekes, L.M., Broeckhoven, C. (Christine) van, Hofman, A. (Albert), Duijn, C.M. (Cornelia) van, Knijff, P. (Peter) de, Cruts, M. (Marc), Wehnert, A. (Anita), Havekes, L.M., Broeckhoven, C. (Christine) van, and Hofman, A. (Albert)

Abstract

Several studies have reported an association of the apolipoprotein E allele epsilon 4 (APOE*4) to familial and sporadic late-onset Alzheimer's disease (LOAD). Here we report on the relationship between APOE*4 and early-onset Alzheimer's disease (EOAD) in a Dutch population-based study. The frequency of the APOE*4 allele was 2.3 times higher among EOAD cases compared to controls. Among patients, the allele frequency was 1.6 times higher in those with a positive family history than in tho

Published
1994

25. A population-based study of familial Alzheimer's disease: linkage to chromosome 14, 19 and 21

Author

Duijn, C.M. (Cornelia) van, Hendriks, L. (Lydia), Farrer, L.A. (Lindsay), Cruts, M. (Marc), Wehnert, A. (Anita), Backhovens, H. (Hubert), Broeckhoven, C. (Christine) van, Hofman, A. (Albert), Duijn, C.M. (Cornelia) van, Hendriks, L. (Lydia), Farrer, L.A. (Lindsay), Cruts, M. (Marc), Wehnert, A. (Anita), Backhovens, H. (Hubert), Broeckhoven, C. (Christine) van, and Hofman, A. (Albert)

Abstract

Linkage of Alzheimer disease (AD) to DNA markers on chromosomes 14, 19, and 21 was studied in 10 families in which the disease was apparently inherited as an autosomal dominant trait. Families were derived from a Dutch population-based epidemiologic study of early-onset AD. Although in all probands the onset of AD was at or before age 65 years, the mean age at onset was after age 65 years in four families (referred to as "LOAD"). Among the six families with early-onset AD (referred to as "EOAD," i.e., mean age of onset of AD of relatives was at or before age 65 years), conclusive linkage to 14q24.3 was found in one family with a very early onset (around 47 years), while linkage to the same region was excluded in two other families. For the LOAD families, predominantly negative lod scores were obtained, and the overall lod score excluded linkage to chromosome 14. The results with markers on chromosome 19 and chromosome 21 were not conclusive for EOAD and LOAD. The findings of our study confirm genetic heterogeneity within familial EOAD.

Published
1994

26. Amyloid precursor protein gene mutation in early-onset Alzheimer's disease.

Author

Duijn, C.M. (Cornelia) van, Cruts, M. (Marc), Hardy, J. (John), Hendriks, L. (Lydia), Broeckhoven, C. (Christine) van, Hofman, A. (Albert), Duijn, C.M. (Cornelia) van, Cruts, M. (Marc), Hardy, J. (John), Hendriks, L. (Lydia), Broeckhoven, C. (Christine) van, and Hofman, A. (Albert)

Published
1991

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