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Statistical approach to DNA chip analysis
N M Svrakic1, O Nesic, M R K Dasu
1Department of Psychiatry, Washington University School of Medicine, St. Louis, Missouri 63110, USA. nenad@tci.wustl.edu
Recent Progress in Hormone Research
|June 11, 2003
Summary
This review covers statistical methods for DNA microarray data analysis, including experimental design, data reduction, and time-course studies. The field has evolved from technical aspects to significant biological, medical, and clinical applications.
Area of Science:
- Bioinformatics
- Statistical Genetics
- Genomics
Background:
- DNA microarrays enable high-throughput gene expression profiling.
- Early research focused on technical and methodological aspects of microarray technology.
- Current emphasis is on the application of microarray data in biological, medical, and clinical research.
Purpose of the Study:
- To review statistical methods for DNA microarray data analysis.
- To discuss common experimental setups and data processing techniques.
- To highlight the shift towards biological and clinical applications.
Main Methods:
- Review of statistical approaches for analyzing DNA microarray data.
- Discussion of data reduction and clustering techniques.
- Analysis of time-course experiments and experimental setups.
Main Results:
- Identification of key statistical methods for microarray data.
- Illustrative examples from recent research showcasing applications.
- Outline of new developments in the field.
Conclusions:
- Statistical methods are crucial for extracting meaningful insights from DNA microarray experiments.
- The field has expanded significantly into diverse biological and clinical domains.
- Ongoing advancements continue to enhance the utility of DNA microarrays.
Related Concept Videos
02:34DNA Microarrays
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02:36Chromatin Immunoprecipitation- ChIP
Chromatin immunoprecipitation, or ChIP, is an antibody-based technique used to identify sites on DNA that bind to transcription factors of interest or histone proteins. It also helps determine the type of histone modifications such as acetylation, phosphorylation, or methylation.
Types of ChIP
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ChIP can be divided into two types - X-ChIP and N-ChIP. X-ChIP involves in vivo cross-linking of histones and regulatory proteins to DNA, fragmenting the DNA by sonication, and isolating the protein-DNA...