Pharmacogenomic association study on the role of drug metabolizing, drug transporters and drug target gene polymorphisms in drug-resistant epilepsy in a north Indian population
2011

Genetic Factors in Drug-Resistant Epilepsy

Sample size: 402 publication 10 minutes Evidence: moderate

Author Information

Author(s): Kumari Ritu, Lakhan Ram Garg, Kalita J, Misra U. K, Mittal Balraj

Primary Institution: Sanjay Gandhi Postgraduate Institute of Medical Sciences

Hypothesis

The study investigates the role of genetic polymorphisms in drug metabolism and transport in patients with drug-resistant epilepsy.

Conclusion

Pharmacogenetic variants significantly influence drug resistance in epilepsy, highlighting the need for personalized treatment approaches.

Supporting Evidence

  • 128 patients had multiple drug-resistant epilepsy, while 274 were drug-responsive.
  • CYP2C9 c.1075 A>C showed a marginally significant difference in drug response.
  • ABCB1 c.2677G>T/A allele A was associated with drug resistance.
  • SCN2A c.56 G>A variant frequency was higher in drug-resistant patients.

Takeaway

Some people with epilepsy don't respond to medicine because of their genes, and understanding these genes can help doctors find better treatments.

Methodology

The study involved genotyping 10 candidate gene polymorphisms in 402 epilepsy patients, comparing drug-resistant and drug-responsive groups using logistic regression.

Potential Biases

Potential biases may arise from the selection criteria and the reliance on patient records for historical data.

Limitations

The study's retrospective design and the potential for genetic heterogeneity may limit the generalizability of the findings.

Participant Demographics

70.8% male, mean age 24.30 years.

Statistical Information

P-Value

0.03

Confidence Interval

95% CI = 0.10-0.93

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.4103/0971-6866.80357

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