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ORIGINAL ARTICLE
Year : 2019  |  Volume : 14  |  Issue : 2  |  Page : 124-129

Brain-derived neurotrophic factor and coenzyme Q10 levels in blood of children with learning disorder


Department of Research on Children with Special Needs, National Research Center, Giza, Egypt

Correspondence Address:
Mohamed E Elhadidy
Department of Research on Children with Special Needs, National Research Center, El-Bouhouth St Giza 12622
Egypt
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/jasmr.jasmr_15_19

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Background Learning disorder (LD) is manifested by significant difficulties in the acquisition and use of reasoning, reading, writing, or mathematical abilities, despite average intelligence and proper education. Its etiological factors were suggested to be related to neurodevelopmental alterations. Measurement of the levels of brain-derived neurotrophic factor (BDNF) and coenzyme Q10 (CoQ10) was targeted in children with LD in comparison with typically developing (TD) ones. Materials and methods This study included 82 Egyptian Arabic-speaking children matched for age and sex and socioeconomic status, comprising 42 with specific LD (group I) and 40 TD children (group II). All participants were subjected to clinical and full neurological examination after reporting a full medical history. Furthermore, LD group was subjected to Stanford–Binet intelligence scale, dyslexia assessment test, and phonological awareness test, which evaluates cognitive and learning aptitudes. The levels of BDNF and CoQ10 were determined in serum by enzyme-linked immunosorbent assay. Results All children with LD obtained a score of 1 or more as at-risk quotient by the dyslexia assessment test, which indicated a specific reading disorder. The BDNF and CoQ10 levels in the LD group were significantly less than those in the TD group. No correlations were found between the measured markers and each other or between them and the measured factors of the used tests. Conclusion The detected low levels of BDNF and CoQ10 in children with specific LD with impairment in reading would be suspected to be related to etiological or exaggerating factors for the deficits in such children.


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