Effect of the rs7858836 Single-Nucleotide Polymorphisms of the ASTN2 Gene on Pain-Related Phenotypes in Japanese Women Who Underwent Laparoscopic Gynecologic Surgery
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View abstract on PubMed
Summary
This summary is machine-generated.The rs7858836 SNP in the ASTN2 gene is linked to reduced postoperative pain and analgesic needs in women undergoing gynecologic surgery. This genetic marker may indicate lower pain sensitivity, though the effect size was modest.
Area Of Science
- Genetics and Pain Perception
- Surgical Outcomes Research
- Pharmacogenomics
Background
- Previous research linked the ASTN2 gene's rs7858836 C/T single-nucleotide polymorphism (SNP) to lower fentanyl requirements post-surgery.
- Astrotactin 2 (ASTN2) is a gene involved in neuronal development, potentially influencing pain signaling.
- The current study investigates this SNP's impact on pain phenotypes in gynecologic surgery patients.
Purpose Of The Study
- To determine the association between the rs7858836 SNP and postoperative pain outcomes.
- To evaluate the SNP's effect on fentanyl requirements, rescue analgesic use, and pain scores after laparoscopic gynecologic surgery (LGS).
Main Methods
- A cohort of 333 Japanese women undergoing LGS was genotyped for the rs7858836 SNP.
- Postoperative pain was assessed using Numeric Rating Scale (NRS) scores, fentanyl consumption, and rescue analgesic administration.
- Genotypes (TT/CT vs. CC) were compared using statistical tests (Mann-Whitney, chi-squared).
Main Results
- Patients with the minor T allele (CT or TT genotypes) reported significantly lower average NRS pain scores (p=0.031).
- The T allele carriers required fewer rescue analgesics compared to CC genotype patients (5.5% vs. 15.0%, p=0.003).
- No significant difference in postoperative fentanyl requirements was observed between genotype groups (p=0.940).
Conclusions
- The minor T allele of rs7858836 is associated with slightly reduced postoperative pain intensity and decreased need for rescue analgesics in LGS patients.
- These findings suggest the SNP may reflect lower pain sensitivity, but the effect was less pronounced than in prior studies.
- The rs7858836 SNP warrants further investigation for its role in modulating pain perception and analgesic response.
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