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Subcortical origins of human and monkey neocortical interneurons

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TLDR
It is proposed that the majority of primate neocortical GABAergic interneurons originate from ganglionic eminences of the ventral telencephalon, and this work reveals that the mammalian neocortex shares basic rules for interneuron development, substantially reshaping the understanding of the origin and classification ofPrimate neocortex.
Abstract
In primates, the developmental origin of neocortical interneurons is controversial. Here the authors map out expression patterns of key transcription factors in the developing human and monkey brain and reveal that, just as in rodents, the majority of cortical GABAergic neurons originate from the ganglionic eminences.

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Transcriptomic taxonomy and neurogenic trajectories of adult human, macaque, and pig hippocampal and entorhinal cells

- 01 Feb 2022 - 
TL;DR: In this paper , a cross-species analysis revealed robust transcriptomic and histologic signatures of neurogenesis in the adult mouse, pig, and macaque, but not humans.
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Human Models Are Needed for Studying Human Neurodevelopmental Disorders.

TL;DR: Human-specific features of neurodevelopment and the most common neurodevelopmental disorders are summarized, discrepancies between animal models and human diseases are presented, how human stem cell models can provide meaningful information is demonstrated, and the challenges that exist are discussed.
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Modeling Down Syndrome with Patient iPSCs Reveals Cellular and Migration Deficits of GABAergic Neurons.

TL;DR: It is suggested that impaired migration of DS GABAergic neurons may contribute to the reduced number of interneurons in the cerebral cortex and hippocampus in DS patients.
References
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Journal ArticleDOI

Model of autism: increased ratio of excitation/inhibition in key neural systems

TL;DR: In this paper, a model that postulates that some forms of autism are caused by an increased ratio of excitation/inhibition in sensory, mnemonic, social and emotional systems is proposed.
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Cortical inhibitory neurons and schizophrenia

TL;DR: Convergent findings indicate that a deficiency in signalling through the TrkB neurotrophin receptor leads to reduced GABA synthesis in the parvalbumin-containing subpopulation of inhibitory GABA neurons in the dorsolateral prefrontal cortex of individuals with schizophrenia.
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Spatio-temporal transcriptome of the human brain

TL;DR: The generation and analysis of exon-level transcriptome and associated genotyping data, representing males and females of different ethnicities, from multiple brain regions and neocortical areas of developing and adult post-mortem human brains, finds that 86 per cent of the genes analysed were expressed, and that 90 per cent were differentially regulated at the whole-transcript or exon level acrossbrain regions and/or time.
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Three groups of interneurons account for nearly 100% of neocortical GABAergic neurons

TL;DR: The universal modulation of these neurons by serotonin and acetylcholine via ionotropic receptors suggests that they might be involved in shaping cortical circuits during specific brain states andbehavioral contexts.
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Neurogenic radial glia in the outer subventricular zone of human neocortex

TL;DR: This work finds that OSVZ radial glia-like cells have a long basal process but, surprisingly, are non-epithelial as they lack contact with the ventricular surface, and demonstrates that these cells can undergo proliferative divisions and self-renewing asymmetric divisions to generate neuronal progenitor cells that can proliferate further.
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Trending Questions (1)
What is the origin of GABAAR in human evolution?

The provided paper does not mention the origin of GABAAR in human evolution. The paper focuses on the developmental origin of neocortical interneurons in primates.