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Related Experiment Videos

Rat brain fatty acid-binding protein during development.

E R Galarza De Bo1, F M Atlasovich, M R Ermacora

  • 1Departamento de Quimica Biológica, Facultad de Farmacia y Bioquimica, Universidad de Buenos Aires, Argentina.

Neurochemistry International
|September 1, 1992
PubMed
Summary

Cytosolic fatty acid-binding proteins (FABPs) show distinct developmental patterns in rat brain regions. White matter FABP increases with age and myelin deposition, unlike gray matter FABP.

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Area of Science:

  • Neuroscience
  • Biochemistry

Background:

  • Cytosolic fatty acid-binding proteins (FABPs) are present in mammalian brains.
  • Their specific distribution and developmental changes in different brain regions are not fully understood.

Purpose of the Study:

  • To investigate the distribution of FABP in rat white matter and gray matter.
  • To analyze the developmental changes in FABP activity in these brain regions.

Main Methods:

  • Comparison of fatty acid binding activity in white and gray matter at different ages.
  • Gel filtration (Sephadex G-75) of white matter cytosol from adult female rats.
  • Analysis of FABP activity in relation to myelin deposition.

Main Results:

  • Fatty acid binding activity was similar in white and gray matter until 40 days of age.

Related Experiment Videos

  • White matter FABP activity increased with age, paralleling myelin deposition.
  • Gray matter FABP activity remained constant after 40 days.
  • Two peaks of activity were identified in white matter cytosol: Peak A (Vo) and Peak B (12-14 KDa; FABP).

    • Conclusions:

    • Differential distribution of FABP in gray and white matter suggests region-specific roles.
    • The age-dependent increase in white matter FABP activity is linked to myelin formation.
    • FABP activity in white matter may be associated with glial cells or myelin structures.