Rheumatoid arthritis: GWAS or TMI?

Area of Science:

• Genetics
• Medical Research
• Epidemiology

Background:

• Genome-wide association studies (GWAS) are primary tools for identifying genetic variations linked to diseases.
• Large DNA banks enable detection of even minor genetic associations.
• The increasing volume of GWAS findings raises concerns about their practical utility.

Purpose of the Study:

• To discuss the implications of an increasing number of genetic associations identified through GWAS.
• To highlight the potential for "too much information" (TMI) in genetic research.
• To examine whether GWAS in rheumatoid arthritis exemplify this TMI phenomenon.

Main Methods:

• Review of current trends and concerns in genome-wide association studies.
• Analysis of the impact of identifying numerous small genetic risk associations.
• Case study consideration of recent rheumatoid arthritis genetic association research.

Main Results:

• GWAS can identify numerous genetic polymorphisms associated with diseases.
• The identification of associations with progressively smaller risks is becoming common.
• There is a growing concern that the sheer volume of findings may reduce their impact and value.

Conclusions:

• The rapid increase in GWAS findings, particularly those with marginal effects, may lead to a state of "too much information" (TMI).
• This TMI phenomenon could potentially diminish the perceived value and interest in genetic association research.
• Recent studies in rheumatoid arthritis suggest this trend may already be impacting the field.