Dataset Information

Human Embryonic Stem Cells in the Treatment of Autism: A Case Series.

ABSTRACT: Background: Autism spectrum disorder is a neurodevelopmental disorder accompanied by weak immune system and neuroinflammation. Multiple factors contribute to etiology of autism spectrum disorder including genetic disorders, environmental substances/toxins, imbalanced immune system, encephalitis, and viral infections. Autism spectrum disorder is an incurable disease; however, it can be managed by educational and medical interventions. Human embryonic stem cell therapy has been shown to improve blood perfusion in the brain; thus, this therapy may be effective in improving motor skills, social skills, and cognition in patients with autism spectrum disorder. Method: Three pediatric patients with autism spectrum disorder were administered human embryonic stem cell therapy. Their treatment plan comprised 3 to 4 therapy sessions (T1, T2, T3, T4) that were 4 to 6 weeks in length, with 4- to 8-month gap phases separating each therapy session. Results: The patients showed improvements in eye coordination, writing, balancing, cognition, and speech and showed reduced hypersensitivity to noises and smells. Conclusion: The use of human embryonic stem cell therapy may be a safe and effective treatment for patients with autism spectrum disorder. Studies with larger sample sizes are needed to support the use of human embryonic stem cell therapy in this patient population.

SUBMITTER: Shroff G

PROVIDER: S-EPMC5451033 | biostudies-literature | 2017 Mar-Apr

REPOSITORIES: biostudies-literature

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Human Embryonic Stem Cells in the Treatment of Autism: A Case Series.

Shroff Geeta G

Innovations in clinical neuroscience 20170301 3-4

<b>Background:</b> Autism spectrum disorder is a neurodevelopmental disorder accompanied by weak immune system and neuroinflammation. Multiple factors contribute to etiology of autism spectrum disorder including genetic disorders, environmental substances/toxins, imbalanced immune system, encephalitis, and viral infections. Autism spectrum disorder is an incurable disease; however, it can be managed by educational and medical interventions. Human embryonic stem cell therapy has been shown to imp ...[more]

PMID: 28584692

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Project description:The fundamental repeating unit of eukaryotic chromatin is the nucleosome. Besides being involved in packaging DNA, nucleosome organization plays an important role in transcriptional regulation and cellular identity. Currently, there is much debate about the major determinants of the nucleosome architecture of a genome and its significance with little being known about its role in stem cells. To address these questions, we performed ultra-deep sequencing of nucleosomal DNA in two human embryonic stem cell lines and integrated our data with numerous epigenomic maps. Our analyses have revealed that the genome is a determinant of nucleosome organization with transcriptionally inactive regions characterized by a "ground state" of nucleosome profiles driven by underlying DNA sequences. DNA sequence preferences are associated with heterogeneous chromatin organization around transcription start sites. Transcription, histone modifications, and DNA methylation alter this "ground state" by having distinct effects on both nucleosome positioning and occupancy. As the transcriptional rate increases, nucleosomes become better positioned. Exons transcribed and included in the final spliced mRNA have distinct nucleosome profiles in comparison to exons not included at exon-exon junctions. Genes marked by the active modification H3K4m3 are characterized by lower nucleosome occupancy before the transcription start site compared to genes marked by the inactive modification H3K27m3, while bivalent domains, genes associated with both marks, lie exactly in the middle. Combinatorial patterns of epigenetic marks (chromatin states) are associated with unique nucleosome profiles. Nucleosome organization varies around transcription factor binding in enhancers versus promoters. DNA methylation is associated with increasing nucleosome occupancy and different types of methylations have distinct location preferences within the nucleosome core particle. Finally, computational analysis of nucleosome organization alone is sufficient to elucidate much of the circuitry of pluripotency. Our results, suggest that nucleosome organization is associated with numerous genomic and epigenomic processes and can be used to elucidate cellular identity.

Dataset Information

Human Embryonic Stem Cells in the Treatment of Autism: A Case Series.

Publications

Human Embryonic Stem Cells in the Treatment of Autism: A Case Series.

Similar Datasets

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