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Proteomics and lipidomics in the human brain.

Isidro Ferrer1

  • 1Pathologic Anatomy Service, Institute of Neuropathology, Bellvitge University Hospital; Department of Pathology and Experimental Therapeutics, Faculty of Medicine, University of Barcelona; and Network Center of Biomedical Research on Neurodegenerative Diseases, Institute Carlos III; Hospitalet de Llobregat, Llobregat, Spain.

Handbook of Clinical Neurology
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PubMed
Summary

This review examines proteomics and lipidomics techniques for human brain studies, emphasizing challenges with post-mortem tissue. Understanding limitations is crucial for accurate neurodegenerative disease research.

Keywords:
AlzheimerParkinsonaginglipid raftslipidomicsneurodegenerative diseasesproteomicsredox proteomics

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Area of Science:

  • Neuroscience
  • Biochemistry
  • Molecular Biology

Background:

  • Proteomics and lipidomics offer large-scale analysis of proteins and lipids.
  • Studying the human brain presents unique methodological challenges.
  • Post-mortem brain tissue analysis requires careful consideration of technique limitations.

Purpose of the Study:

  • To review the rational application of current proteomics and lipidomics techniques for human brain studies.
  • To highlight limitations and potential pitfalls of these methods, particularly with post-mortem tissue.
  • To provide a framework for avoiding misinterpretations in neurodegenerative disease research.

Main Methods:

  • Review of existing literature on proteomics and lipidomics techniques.
  • Critical analysis of method-specific benefits and limitations.
  • Case examples from Alzheimer's and Parkinson's disease research.

Main Results:

  • Specific techniques have distinct advantages and disadvantages for brain tissue.
  • Post-mortem sample handling introduces significant challenges and potential biases.
  • Aging, disease, region, and stage-specific molecular modifications occur in neurodegeneration.

Conclusions:

  • Careful selection and application of techniques are essential for reliable human brain research.
  • Awareness of limitations in proteomics and lipidomics is critical for interpreting post-mortem brain data.
  • This review aids in the accurate study of molecular changes in neurodegenerative diseases like Alzheimer's and Parkinson's.