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Related Concept Videos

Phenotypic Profiling of Human Stem Cell-Derived Midbrain Dopaminergic Neurons09:21

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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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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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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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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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Related Experiment Video

Updated: Jan 8, 2026

Environmental Modulations of the Number of Midbrain Dopamine Neurons in Adult Mice
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Do calcium antagonists affect platelets?

M Schachter1

  • 1Department of Clinical Pharmacology, St. Mary's Hospital Medical School, London, U.K.

European Heart Journal
|November 1, 1987
PubMed
Summary
This summary is machine-generated.

Calcium antagonists show potential in treating cardiovascular diseases by inhibiting platelet activation. However, their clinical effectiveness and mechanism require further investigation for practical patient benefit.

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Related Experiment Videos

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Area of Science:

  • Cardiovascular Pharmacology
  • Hematology

Background:

  • Inappropriate platelet activation contributes to cardiovascular disorders like ischemic heart disease and hypertension.
  • Calcium antagonists are widely used for these conditions.

Purpose of the Study:

  • To explore the potential anti-platelet effects of calcium antagonists.
  • To investigate the clinical relevance of these effects in cardiovascular therapy.

Main Methods:

  • In vitro and ex vivo studies assessing platelet activation in the presence of calcium antagonists.
  • Review of existing literature on drug concentrations, receptor binding, and clinical outcomes.

Main Results:

  • Calcium antagonists consistently inhibit platelet activation in vitro.
  • Inhibition is less consistent ex vivo.
  • Clinical drug concentrations may be insufficient for significant anti-platelet effects.

Conclusions:

  • While calcium antagonists demonstrate in vitro anti-platelet activity, their clinical significance remains uncertain.
  • Further research is needed to clarify the mechanism of action and therapeutic value in patients.