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Related Concept Videos

Ribosome Profiling02:24

Ribosome Profiling

Ribosome profiling or ribo-sequencing is a deep sequencing technique that produces a snapshot of active translation in a cell. It selectively sequences the mRNAs protected by ribosomes to get an insight into a cell’s translation landscape at any given point in time.
Applications of ribosome profiling
Ribosome profiling has many applications, including in vivo monitoring of translation inside a particular organ or tissue type and quantifying new protein synthesis levels.
The technique helps...
Notch Signaling Pathway03:14

Notch Signaling Pathway

The Notch signaling pathway is a major intracellular signaling pathway that is highly conserved over a broad spectrum of metazoan species. It stands unique from other intracellular signaling mechanisms in animals because notch protein itself acts as the receptor as well as the primary signaling molecule.
The Notch gene came into the limelight in 1914 after the discovery that its mutation in Drosophila melanogaster leads to a serrated (or "notched") wing margin phenotype. It was not until 1985...
Notch Signaling Pathway03:14

Notch Signaling Pathway

The Notch signaling pathway is a major intracellular signaling pathway that is highly conserved over a broad spectrum of metazoan species. It stands unique from other intracellular signaling mechanisms in animals because notch protein itself acts as the receptor as well as the primary signaling molecule.
The Notch gene came into the limelight in 1914 after the discovery that its mutation in Drosophila melanogaster leads to a serrated (or "notched") wing margin phenotype. It was not until 1985...
Single Nucleotide Polymorphisms-SNPs01:05

Single Nucleotide Polymorphisms-SNPs

A single nucleotide polymorphism or SNP is a single nucleotide variation at a specific genomic position in a large population. It is the most prevalent type of sequence variation found in the human genome. Point mutations that occur in more than 1% of the population qualify as SNPs. These are present once every 1000 nucleotides on an average in the human genome. Replacement of a purine with another purine (A/G) or a pyrimidine with another pyrimidine (C/T) is known as a transition. In contrast,...
¹H NMR: Complex Splitting01:13

¹H NMR: Complex Splitting

A proton M that is coupled to a proton X results in doublet signals for M. However, NMR-active nuclei can be simultaneously coupled to more than one nonequivalent nucleus. When M is coupled to a second proton A, such as in styrene oxide, each peak in the doublet is split into another doublet.
Splitting diagrams or splitting tree diagrams are routinely used to depict such complex couplings. While drawing splitting diagrams, the splitting with the larger coupling constant is usually applied first.
Reporter Genes02:11

Reporter Genes

Reporter genes are a type of protein-coding gene that are often tagged to a gene of interest. Once inside a target cell, reporter genes usually produce visually identifiable characteristics like fluorescence and luminescence when expressed along with the gene of interest. Thus, reporter genes “report” the presence or absence of genes of interest in an organism, determine the gene expression pattern, or track the physical location of a DNA segment or protein in the cell.
Commonly used reporter...

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Updated: Jun 13, 2026

Enhanced Genetic Analysis of Single Human Bioparticles Recovered by Simplified Micromanipulation from Forensic ‘Touch DNA’ Evidence
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Profiling identifies precursor suspects: notch family again!

Joshua J Breunig1, Pasko Rakic

  • 1Department of Neurobiology, Yale University School of Medicine, New Haven, CT 06510, USA.

Cell Stem Cell
|May 11, 2010
PubMed
Summary
This summary is machine-generated.

Newborn neurons in the adult dentate gyrus exhibit distinct precursor and progenitor behaviors. Lugert et al. characterized these proliferative differences in response to neurogenic stimuli and aging.

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Area of Science:

  • Neuroscience
  • Stem Cell Biology
  • Neurogenesis

Background:

  • Adult neurogenesis occurs in the dentate gyrus, a region crucial for learning and memory.
  • Newborn neurons arise from distinct precursor and progenitor cells.
  • Understanding these cell populations is key to regenerative medicine and neurological disease research.

Discussion:

  • Lugert et al. investigated the proliferative behaviors of distinct neuronal precursor and progenitor classes in the adult dentate gyrus.
  • The study analyzed how these behaviors are altered by neurogenic stimuli and aging.
  • Characterizing these cellular dynamics provides insights into the regulation of adult neurogenesis.

Key Insights:

  • Distinct precursor and progenitor classes show significantly different proliferative behaviors.
  • Neurogenic stimuli and aging differentially impact the proliferation of these neuronal progenitors.
  • This highlights the complex regulation of newborn neuron development in the adult brain.

Outlook:

  • Further research can explore the molecular mechanisms driving these differential proliferative behaviors.
  • Understanding these processes may lead to therapeutic strategies for cognitive decline and brain injury.
  • This work contributes to the broader understanding of neural stem cell potential and brain repair.