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Related Experiment Video

Updated: Feb 3, 2026

Two-step Approach to Explore Early- and Late-stages of Organ Formation in the Avian Model: The Thymus and Parathyroid Glands Organogenesis Paradigm
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Biochemical Changes Indicate Developmental Stage in the Hippocampal Formation.

Joanna G Chwiej1, Stanislaw W Ciesielka1, Agnieszka K Skoczen1

  • 1AGH University of Science and Technology , Faculty of Physics and Applied Computer Science , Krakow 30-059 , Poland.

ACS Chemical Neuroscience
|October 31, 2018
PubMed
Summary

Biomolecular changes in the rat hippocampus during postnatal development were analyzed using FTIR microspectroscopy. Lipid and phosphate accumulation increased significantly with age, particularly between 6 and 30 days.

Keywords:
Fourier transform infrared microspectroscopyhippocampal formationpostnatal brain developmenttopographic and semiquantitative biochemical analysis

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Area of Science:

  • Neuroscience
  • Biochemistry
  • Biophysics

Background:

  • Limited literature exists on age-related IR absorption spectra in brain regions.
  • Few studies utilize FTIR microspectroscopy for aging analysis.
  • Data on biomolecular changes during central nervous system postnatal development is scarce.

Purpose of the Study:

  • To investigate topographic and semiquantitative biochemical changes in the rat hippocampus during postnatal development.
  • To analyze biomolecular accumulation and protein secondary structures across different hippocampal layers.

Main Methods:

  • Fourier-transform infrared (FTIR) microspectroscopy was employed.
  • Three age groups of male rats were studied: 6, 30, and 60 days old.
  • Analysis focused on four hippocampal cellular layers: multiform, molecular, pyramidal, and granular.

Main Results:

  • Significant changes in biomolecule accumulation were observed during hippocampal development.
  • Lipids (saturated and unsaturated) and phosphate/carbonyl compounds increased significantly from neonatal to adult stages.
  • Increases were most pronounced between 6 and 30 days of age.
  • Lipid unsaturation levels remained constant, but content differed between age groups.
  • Significant differences in protein secondary structure were found, with higher beta-type structures in neonates.

Conclusions:

  • FTIR microspectroscopy reveals distinct age-dependent biomolecular alterations in the rat hippocampus.
  • Postnatal development involves substantial increases in lipids and phosphate-containing compounds.
  • Protein secondary structure undergoes significant changes during early life stages.