Identification of a 5-Protein Biomarker Molecular Signature for Predicting Alzheimer's Disease
2008

5-Protein Biomarker for Predicting Alzheimer's Disease

Sample size: 92 publication 10 minutes Evidence: high

Author Information

Author(s): Gómez Ravetti Martín, Moscato Pablo

Primary Institution: Centre for Bioinformatics, Biomarker Discovery & Information-Based Medicine, The University of Newcastle, Callaghan, Australia

Hypothesis

Can a 5-protein biomarker signature accurately predict Alzheimer's Disease?

Conclusion

The study identified a 5-protein biomarker signature that achieves 96% accuracy in predicting Alzheimer's Disease.

Supporting Evidence

  • The 5-protein signature has the same performance as a previously proposed 18-protein signature.
  • The 5-protein signature achieved 100% success in predicting Alzheimer's Disease in a test set of 92 samples.
  • The study demonstrated that fewer proteins can still provide high accuracy in predicting Alzheimer's Disease.

Takeaway

Scientists found a way to tell if someone has Alzheimer's Disease by looking at just five proteins in their blood.

Methodology

The study used an integrative data analysis method involving abundance quantization, feature selection, literature analysis, and classifier selection.

Potential Biases

Potential bias due to the lack of MCI samples in the training set.

Limitations

The study did not include samples with mild cognitive impairment in the training set.

Participant Demographics

Participants included individuals diagnosed with Alzheimer's Disease and non-demented controls.

Statistical Information

P-Value

p<0.05

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1371/journal.pone.0003111

Want to read the original?

Access the complete publication on the publisher's website

View Original Publication