Most Read Articles
Yesterday
No association exists between physical activity and the risk of urological cancer, according to a population-based prospective study in Japan.
6 days ago
Olanzapine confers a modest therapeutic effect on weight compared with placebo in adult outpatients with anorexia nervosa, a study has shown. However, it does not appear to offer significant benefit for psychological symptoms.
2 days ago
Patients with childhood-onset inflammatory bowel disease are more likely to die than the general population, a study suggests.
2 days ago
Reduced caloric intake results in a significant improvement in glucose metabolism and body-fat composition, including liver-fat content, according to a study. Changes in ferritin levels appear to mediate the striking reduction in liver fat.

Genetic polymorphisms predict psoriasis vulgaris response to methotrexate

11 Feb 2019
Passing down of bipolar disorder genes is also a factor in increasing suicide risk among adolescents.

Single nucleotide polymorphisms (SNPs) in the SMG6, IMMT and UPK1A genes affect the efficacy of methotrexate in patients with psoriasis vulgaris, a new study has shown.

Whole-exon high-throughput sequencing technology was used to assess the DNA of 22 psoriasis vulgaris patients, half of whom were nonresponders (mean age 44±13 years; 50 percent male; responders: mean age 48±15 years; 50 percent male) to methotrexate. Medication response was defined as a decrease in the Psoriasis Area and Severity Index >75 percent.

Fifty SNPs were selected for further validation by the MassARRAY method. Of these, 36 putative SNPs were identified in the present study, while the remaining 14 had been previously reported in the literature. After selecting for SNPs with a frequency >5 percent, genotyping rate ≥95 percent, and which satisfied the Hardy-Weinberg equilibrium, 42 remained qualified for further analysis.

On multivariate logistic regression analysis, three SNPs achieved statistical significance. The rs216195 GT (odds ratio [OR], 5.574; 95 percent CI, 1.1035–30.032; p=0.046) and GG (OR, 6.174; 1.114–33.922; p=0.037) genotypes of the SMG6 gene were all significantly associated with an effective response relative to the TT genotype.

For the IMMT gene, the rs1050301 AA (OR, 0.246; 0.061–0.0990; p=0.049) genotype was correlated with a poorer response relative to the GG phenotype. The rs2285421 TC (OR, 4.420; 1.175–16.630; p=0.028) and CC (OR, 2.795; 0.689–11.331; p=0.029) genotypes of the UPK1A gene were associated with a better response relative to the TT genotype.

Digital Edition
Asia's trusted medical magazine for healthcare professionals. Get your MIMS Doctor - Malaysia digital copy today!
Sign In To Download
Editor's Recommendations
Most Read Articles
Yesterday
No association exists between physical activity and the risk of urological cancer, according to a population-based prospective study in Japan.
6 days ago
Olanzapine confers a modest therapeutic effect on weight compared with placebo in adult outpatients with anorexia nervosa, a study has shown. However, it does not appear to offer significant benefit for psychological symptoms.
2 days ago
Patients with childhood-onset inflammatory bowel disease are more likely to die than the general population, a study suggests.
2 days ago
Reduced caloric intake results in a significant improvement in glucose metabolism and body-fat composition, including liver-fat content, according to a study. Changes in ferritin levels appear to mediate the striking reduction in liver fat.