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1
Planum Temporale Morphology in Children with Developmental Dyslexia
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2
The Aromatase Gene CYP19A1: Several Genetic and Functional Lines of Evidence Supporting a Role in Reading, Speech and Language
Abstract: Inspired by the localization, on 15q21.2 of the CYP19A1 gene in the linkage region of speech and language disorders, and a rare translocation in a dyslexic individual that was brought to our attention, we conducted a series of studies on the properties of CYP19A1 as a candidate gene for dyslexia and related conditions. The aromatase enzyme is a member of the cytochrome P450 super family, and it serves several key functions: it catalyzes the conversion of androgens into estrogens; during early mammalian development it controls the differentiation of specific brain areas (e.g. local estrogen synthesis in the hippocampus regulates synaptic plasticity and axonal growth); it is involved in sexual differentiation of the brain; and in songbirds and teleost fishes, it regulates vocalization. Our results suggest that variations in CYP19A1 are associated with dyslexia as a categorical trait and with quantitative measures of language and speech, such as reading, vocabulary, phonological processing and oral motor skills. Variations near the vicinity of its brain promoter region altered transcription factor binding, suggesting a regulatory role in CYP19A1 expression. CYP19A1 expression in human brain correlated with the expression of dyslexia susceptibility genes such as DYX1C1 and ROBO1. Aromatase-deficient mice displayed increased cortical neuronal density and occasional cortical heterotopias, also observed in Robo1−/− mice and human dyslexic brains, respectively. An aromatase inhibitor reduced dendritic growth in cultured rat neurons. From this broad set of evidence, we propose CYP19A1 as a candidate gene for human cognitive functions implicated in reading, speech and language.
Keyword: Original Research
URL: https://doi.org/10.1007/s10519-012-9532-3
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3375077
http://www.ncbi.nlm.nih.gov/pubmed/22426781
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3
Reading fluency: implications for the assessment of children with reading disabilities
In: Annals of dyslexia. - New York, NY : Springer 60 (2010) 1, 1-17
BLLDB
OLC Linguistik
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4
The pars triangularis in dyslexia and ADHD: A comprehensive approach
In: Brain & language. - Orlando, Fla. [u.a.] : Elsevier 111 (2009) 1, 46-54
OLC Linguistik
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5
The pars triangularis in dyslexia and ADHD: a comprehensive approach
In: Brain & language. - Orlando, Fla. [u.a.] : Elsevier 111 (2009) 1, 46-54
BLLDB
OLC Linguistik
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6
The relationship between cerebral hemisphere volume and receptive language functioning in dyslexia and attention-deficit hyperactivity disorder (ADHD).
In: Publications (2009)
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7
The Pars Triangularis in Dyslexia and ADHD: A Comprehensive Approach
BASE
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8
A Quantitative Magnetic Resonance Imaging Analysis of the Cerebellar Deficit Hypothesis of Dyslexia
In: Publications (2008)
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9
Testing the double-deficit hypothesis in an adult sample
In: Annals of dyslexia. - Boston, Mass. : Springer 56 (2006) 1, 83-102
BLLDB
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10
Children with dyslexia: not necessarily at risk for elevated internalizing symptoms
In: Reading and writing. - New York, NY : Springer Science+Business Media 18 (2005) 5, 425-436
BLLDB
OLC Linguistik
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11
The relationship between perisylvian morphology and verbal short-term memory functioning in children with neurodevelopmental disorders
In: Brain & language. - Orlando, Fla. [u.a.] : Elsevier 89 (2004) 1, 122-135
OLC Linguistik
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12
The relationship between perisylvian morphology and verbal short-term memory functioning in children with neurodevelopmental disorders
In: Brain & language. - Orlando, Fla. [u.a.] : Elsevier 89 (2004) 1, 122-135
BLLDB
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13
Sulcal-Gyral Pattern Morphology of the Perisylvian Language Region in Developmental Dyslexia
In: Brain & language. - Orlando, Fla. [u.a.] : Elsevier 74 (2000) 1, 113-133
OLC Linguistik
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14
Rapid Naming Deficits in Children and Adolescents with Reading Disabilities and Attention Deficit Hyperactivity Disorder
In: Brain & language. - Orlando, Fla. [u.a.] : Elsevier 74 (2000) 1, 70-83
OLC Linguistik
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15
Sulcal/gyral pattern morphology of the perisylvian language region in developmental Dyslexia
In: Brain & language. - Orlando, Fla. [u.a.] : Elsevier 74 (2000) 1, 113-133
BLLDB
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16
Clinical appraisal of spelling ability and its relationship to phonemic awareness (blending, segmenting, elision, and reversal), phonological memory, and reading in reading disabled, ADHD, and normal children
In: Reading and writing. - New York, NY : Springer Science+Business Media 13 (2000) 1, 105-132
OLC Linguistik
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17
Clinical appraisal of spelling ability and its relationship to phonemic awareness (blending, segmenting, elision, and reversal), phonological memory, and reading in reading disabled, ADHD, and normal children
In: Reading and writing. - Dordrecht [u.a.] : Springer Science + Business Media B.V 13 (2000) 1-2, 105-131
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18
Dyslexia : a developmental language-based learning difference
Richardson, Sylvia O. (Hrsg.); Riccio, Cynthia A. (Mitarb.); Hynd, George W. (Mitarb.)...
In: Topics in language disorders. - Hagerstown, Md. : Lippincott Williams & Wilkins 16 (1996) 2, 1-86
BLLDB
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19
Learning disabilities : neuroanatomic asymmetries
In: Brain asymmetry (Cambridge, Mass., 1994), p. 617-636
MPI für Psycholinguistik
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20
Receptive prosody in children with left or right hemisphere dysfunction
In: Brain & language. - Orlando, Fla. [u.a.] : Elsevier 47 (1994) 2, 171-181
BLLDB
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