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Introduction: To assess the potential association between serotonin transporter gene insertion/deletion polymorphism and the cancer-related constipation phenotype.
Material And Methods: A total of 120 patients diagnosed with malignant solid tumors were subjected to genotyping. For the two groups - patients with constipation and constipation-free patients with non-gastrointestinal cancer, 60 cases in each group - we collected the peripheral venous blood. We extracted genomic DNA, and used polymerase chain reaction (PCR) to analyze the serotonin transporter (5-HT) link polymorphic region (5-HTTLPR) polymorphism of the serotonin transporter gene.
Results: The frequency of S/S genotype in cancer patients with constipation was 66.67% (40/60), and the frequency of the S allele was 79.17% (95/120); the frequency of S/S genotype in cancer patients without constipation was 48.33% (29/60), and the frequency of the S allele was 65.83% (79/120). There was a significant difference between the two groups (p < 0.05).
Conclusions: The presence of 5-HTTLPRS/S genotype and the S allele in patients with cancers probably carry an increased risk of constipation. However, its role as a cause of cancer-related constipation needs to be further investigated.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4507894 | PMC |
| http://dx.doi.org/10.5114/wo.2014.41391 | DOI Listing |
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