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This protocol describes the cell culturing of human midbrain dopaminergic neurons, followed by immunological staining and the generation of neuronal phenotypic profiles from acquired microscopic high-content images allowing the identification of phenotypic variations due to genetic or chemical...
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In Parkinson's Disease (PD), Substantia Nigra (SNc) dopaminergic neurons degenerate, leading to motor dysfunction. Here we report a protocol for culturing ventral midbrain neurons from a mouse expressing eGFP driven by a Tyrosine Hydroxylase (TH) promoter sequence, harvesting individual fluorescent neurons from the cultures, and measuring their transcriptome using...
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Isolation, Culture and Long-Term Maintenance of Primary Mesencephalic Dopaminergic Neurons From Embryonic Rodent Brains08:45

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The causes of degeneration of midbrain dopaminergic neurons during Parkinson’s disease are not fully understood. Cellular culture systems provide an essential tool for study of the neurophysiological properties of these neurons. Here we present an optimized protocol, which can be utilized for in vitro modeling of...
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Environmental Modulations of the Number of Midbrain Dopamine Neurons in Adult Mice09:35

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This protocol describes two different environmental manipulations and a concurrent brain infusion protocol to study environmentally-induced brain changes underlying adaptive behavior and brain repair in adult...
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Dopaminergic neurons play a vital regulatory role in the brain. Their loss is associated with Parkinson's disease. In this video, we show how to generate primary cultures of central dopaminergic neurons from embryonic mouse mesencephalon. Such cultures are useful to study the extreme vulnerability of these neurons to various...
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Comprehensive Profiling of Dopamine Regulation in Substantia Nigra and Ventral Tegmental Area09:54

Comprehensive Profiling of Dopamine Regulation in Substantia Nigra and Ventral Tegmental Area

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Dopamine is distinctly regulated in the midbrain nuclei, which contain the cell bodies and dendrites of the dopamine neurons. Here we describe a dissection and sample-handling approach to maximize results, and thus conclusions and insights, on dopamine regulation in the midbrain nuclei of the substantia nigra (SN) and ventral tegmental area (VTA) in...
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Video Experimental Relacionado

Updated: Jan 8, 2026

Environmental Modulations of the Number of Midbrain Dopamine Neurons in Adult Mice
09:35

Environmental Modulations of the Number of Midbrain Dopamine Neurons in Adult Mice

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La memoria celular y el código de la histona.

Bryan M Turner1

  • 1Chromatin and Gene Expression Group, Anatomy Department, University of Birmingham Medical School, Birmingham B15 2TT, United Kingdom.

Cell
|November 7, 2002
PubMed
Resumen
Este resumen es generado por máquina.

Las modificaciones de la histona actúan como un código para controlar la expresión génica. Una nueva investigación revela cómo estas modificaciones interactúan y se mantienen durante la replicación del ADN.

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Área de la Ciencia:

  • La bioquímica es la bioquímica.
  • Biología Molecular Biología Molecular
  • La epigenética es la epigenética.

Sus antecedentes:

  • Las colas de histona son objetivos clave para las modificaciones catalizadas por enzimas.
  • Estas modificaciones pueden ocurrir solas o en combinación, influyendo en los patrones de expresión génica.

Objetivo del estudio:

  • Para explorar la naturaleza combinatoria de las modificaciones histónicas.
  • Comprender cómo se establecen y mantienen las modificaciones histónicas.

Principales métodos:

  • Análisis de las modificaciones catalizadas por enzimas en las colas de histona.
  • Investigar las interacciones a nivel de residuos entre las modificaciones histónicas.
  • Estudiar la perpetuación de las modificaciones en la cromatina recién ensamblada.

Principales resultados:

  • La modificación de un residuo puede afectar a otros, incluso en diferentes histonas.
  • Modificaciones específicas de la ubicación genómica pueden ser heredadas durante el ensamblaje de la cromatina.

Conclusiones:

  • Las modificaciones de la histona funcionan como un código combinatorio para la expresión génica.
  • La interacción entre las modificaciones y su mantenimiento es clave para la herencia epigenética.