Association study of genetic variants of pro-inflammatory chemokine and cytokine genes in systemic lupus erythematosus
2006

Genetic Variants in Inflammatory Genes and Systemic Lupus Erythematosus

Sample size: 981 publication Evidence: low

Author Information

Author(s): Sánchez Elena, Sabio José M, Callejas José L, de Ramón Enrique, Garcia-Portales Rosa, García-Hernández Francisco J, Jiménez-Alonso Juan, González-Escribano Ma Francisca, Martín Javier, Koeleman Bobby P

Primary Institution: Instituto de Parasitología y Biomedicina López-Neyra, CSIC, Granada, Spain

Hypothesis

Do functional genetic variations of RANTES, IL-8, IL-1α, and MCP-1 influence susceptibility to systemic lupus erythematosus?

Conclusion

The study found that the tested genetic variations do not play a significant role in the susceptibility or severity of systemic lupus erythematosus in the Spanish population.

Supporting Evidence

  • No significant differences were found in genotype or allele frequencies between SLE patients and healthy controls.
  • The study included a large sample size of 500 SLE patients and 481 controls.
  • The research was approved by local ethical committees.

Takeaway

The researchers looked at certain genes to see if they affect lupus, but they found no important links.

Methodology

Genotyping of polymorphisms in RANTES, IL-8, IL-1α, and MCP-1 genes was performed on 500 SLE patients and 481 healthy controls using a real-time PCR system.

Potential Biases

Potential for Type II error due to sample size and population differences.

Limitations

The study may not have detected associations due to population differences or other biases.

Participant Demographics

500 SLE patients (87% women, mean age 43) and 481 healthy controls, all of Spanish Caucasian origin.

Statistical Information

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1186/1471-2350-7-48

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