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Your search keyword '"Haack, T.B. (Tobias B.)"' showing total 2 results
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2 results on '"Haack, T.B. (Tobias B.)"'

1. Defining the phenotypical spectrum associated with variants in TUBB2A

Author

Brock, S. (Stefanie), Vanderhasselt, T. (Tim), Vermaning, S. (Sietske), Keymolen, K. (Kathelijn), Régal, L. (Luc), Romaniello, R. (Romina), Wieczorek, D. (Dagmar), Storm, T.M. (Tim Matthias), Schaeferhoff, K. (Karin), Hehr, U. (Ute), Kuechler, A. (Alma), Krägeloh-Mann, I. (Ingeborg), Haack, T.B. (Tobias B.), Kasteleijn, E. (Esmee), Schot, R. (Rachel), Mancini, G.M.S. (Grazia), Webster, R. (Richard), Mohammad, S. (Shekeeb), Leventer, R.J. (Richard), Mirzaa, G.M. (Ghayda), Dobyns, W.B. (William), Bahi-Buisson, N. (Nadia), Meuwissen, M.E.C. (Marije), Jansen, A.C. (Anna C.), Stouffs, K. (Katrien), Brock, S. (Stefanie), Vanderhasselt, T. (Tim), Vermaning, S. (Sietske), Keymolen, K. (Kathelijn), Régal, L. (Luc), Romaniello, R. (Romina), Wieczorek, D. (Dagmar), Storm, T.M. (Tim Matthias), Schaeferhoff, K. (Karin), Hehr, U. (Ute), Kuechler, A. (Alma), Krägeloh-Mann, I. (Ingeborg), Haack, T.B. (Tobias B.), Kasteleijn, E. (Esmee), Schot, R. (Rachel), Mancini, G.M.S. (Grazia), Webster, R. (Richard), Mohammad, S. (Shekeeb), Leventer, R.J. (Richard), Mirzaa, G.M. (Ghayda), Dobyns, W.B. (William), Bahi-Buisson, N. (Nadia), Meuwissen, M.E.C. (Marije), Jansen, A.C. (Anna C.), and Stouffs, K. (Katrien)

Abstract

BACKGROUND: Variants in genes belonging to the tubulin superfamily account for a heterogeneous spectrum of brain malformations referred to as tubulinopathies. Variants in TUBB2A have been reported in 10 patients with a broad spectrum of brain imaging features, ranging from a normal cortex to polymicrogyria, while one patient has been reported with progressive atrophy of the cerebellar vermis. METHODS: In order to further refine the phenotypical spectrum associated with TUBB2A, clinical and imaging features of 12 patients with pathogenic TUBB2A variants, recruited via the international network of the authors, were reviewed. RESULTS: We report 12 patients with eight novel and one recurrent variants spread throughout the TUBB2A gene but encoding for amino acids clustering at the protein surface. Eleven patients (91.7%) developed seizures in early life. All patients suffered from intellectual disability, and 11 patients had severe motor developmental delay, with 4 patients (36.4 %) being non-ambulatory. The cerebral cortex was normal in five individuals and showed dysgyria of variable severity in seven patients. Associated brain malformations were less frequent in TUBB2A patients compared with other tubulinopathies. None of the patients had progressive cerebellar atrophy. CONCLUSION: The imaging phenotype associated with pathogenic v

Published
2020
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2. Clinical, biochemical and genetic spectrum of 70 patients with ACAD9 deficiency: Is riboflavin supplementation effective?

Author

Repp, B.M. (Birgit M.), Mastantuono, E. (Elisa), Alston, C.L. (Charlotte L.), Schiff, M. (Manuel), Haack, T.B. (Tobias B.), Rötig, A. (Agns), Ardissone, A. (Anna), Lombès, A. (Anne), Catarino, C.F.B.S., Diodato, D. (Daria), Schottmann, G. (Gudrun), Poulton, J. (Joanna), Burlina, A.B. (Alberto), Jonckheere, A. (An), Munnich, A. (Arnold), Rolinski, B. (Boris), Ghezzi, D. (Daniele), Rokicki, D. (Dariusz), Wellesley, D. (Diana), Martinelli, D. (Diego), Wenhong, D. (Ding), Lamantea, E. (Eleonora), Østergaard, E. (Elsebet), Pronicka, E. (Ewa), Pierre, G. (Germaine), Smeets, H.J.M. (Hubert), Wittig, I. (Ilka), Scurr, I. (Ingrid), Coo, I.F.M. (René) de, Moroni, I. (Isabella), Smet, J. (Joél), Mayr, J.A. (Johannes A.), Dai, L. (Lifang), Meirleir, L. (Linda) de, Schuelke, M. (Markus), Zeviani, M. (Massimo), Morscher, R.J. (Raphael J.), McFarland, R. (Robert), Seneca, S. (S.), Klopstock, T. (Thomas), Meitinger, T. (Thomas), Wieland, T. (Thomas), Strom, T.M. (Tim), Herberg, U. (Ulrike), Ahting, U. (Uwe), Sperl, W. (Wolfgang), Nassogne, M.C. (M.), Ling, H. (Han), Fang, F. (Fang), Freisinger, P. (Peter), Coster, R.N.A. (R. N A) van, Strecker, V. (Valentina), Taylor, R.W. (Robert William), Häberle, J. (Johannes), Vockley, J. (Jerry), Prokisch, H. (Holger), Wortmann, S.B. (S.), Repp, B.M. (Birgit M.), Mastantuono, E. (Elisa), Alston, C.L. (Charlotte L.), Schiff, M. (Manuel), Haack, T.B. (Tobias B.), Rötig, A. (Agns), Ardissone, A. (Anna), Lombès, A. (Anne), Catarino, C.F.B.S., Diodato, D. (Daria), Schottmann, G. (Gudrun), Poulton, J. (Joanna), Burlina, A.B. (Alberto), Jonckheere, A. (An), Munnich, A. (Arnold), Rolinski, B. (Boris), Ghezzi, D. (Daniele), Rokicki, D. (Dariusz), Wellesley, D. (Diana), Martinelli, D. (Diego), Wenhong, D. (Ding), Lamantea, E. (Eleonora), Østergaard, E. (Elsebet), Pronicka, E. (Ewa), Pierre, G. (Germaine), Smeets, H.J.M. (Hubert), Wittig, I. (Ilka), Scurr, I. (Ingrid), Coo, I.F.M. (René) de, Moroni, I. (Isabella), Smet, J. (Joél), Mayr, J.A. (Johannes A.), Dai, L. (Lifang), Meirleir, L. (Linda) de, Schuelke, M. (Markus), Zeviani, M. (Massimo), Morscher, R.J. (Raphael J.), McFarland, R. (Robert), Seneca, S. (S.), Klopstock, T. (Thomas), Meitinger, T. (Thomas), Wieland, T. (Thomas), Strom, T.M. (Tim), Herberg, U. (Ulrike), Ahting, U. (Uwe), Sperl, W. (Wolfgang), Nassogne, M.C. (M.), Ling, H. (Han), Fang, F. (Fang), Freisinger, P. (Peter), Coster, R.N.A. (R. N A) van, Strecker, V. (Valentina), Taylor, R.W. (Robert William), Häberle, J. (Johannes), Vockley, J. (Jerry), Prokisch, H. (Holger), and Wortmann, S.B. (S.)

Abstract

Background: Mitochondrial acyl-CoA dehydrogenase family member 9 (ACAD9) is essential for the assembly of mitochondrial respiratory chain complex I. Disease causing biallelic variants in ACAD9 have been reported in individuals presenting with lactic acidosis and cardiomyopathy. Results: We describe the genetic, clinical and biochemical findings in a cohort of 70 patients, of whom 29 previously unpublished. We found 34 known and 18 previously unreported variants in ACAD9. No patients harbored biallelic loss of function mutations, indicating that this combination is unlikely to be compatible with life. Causal pathogenic variants were distributed throughout the entire gene, and there was no obvious genotype-phenotype correlation. Most of the patients presented in the first year of life. For this subgroup the survival was poor (50% not surviving the first 2 years) comparing to patients with a later presentation (more than 90% surviving 10 years). The most common clinical findings were cardiomyopathy (85%), muscular weakness (75%) and exercise intolerance (72%). Interestingly, severe intellectual deficits were only reported in one patient and s

Published
2018
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