Polymorphism of the THOC5 of the transcription/export multiprotein complex and its correlation with the lipid and metabolic profile in middle-aged women

Rita Loja-Chango, Danny Salazar-Pousada*, Gustavo S. Escobar-Valdivieso, Cecibel Ramirez-Moran, Jasson Espinoza-Caicedo, Faustino R. Perez-Lopez, Antonio W. D. Gavilanes, Peter Chedraui

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review


The transcription/export complex (TREX) is formed by a core called THO. These are necessary for the transcription and packaging of messenger RNA and its subsequent nuclear exportation. Studies have correlated THO-specific polymorphisms with abnormalities of HDL-C metabolism. To correlate lipid and metabolic parameters with the genetic variants of the rs8135828 polymorphism of the THOC5 gene in middle-aged women. DNA was extracted from the whole blood of 183 women aged 40-65 and tested for the rs8135828 polymorphism of the THOC5 gene using real-time PCR. HDL-C, LDL-C, triglyceride, and total cholesterol levels, as well as other metabolic parameters, were correlated with the polymorphism genotypes: GG, AG, and AA. Mean age of women was 50.6 +/- 6.3 years, 54.6% were postmenopausal and 16.4% had the metabolic syndrome. GG was the most frequently determined genotype (62.3%). There were no differences in lipid levels according to genotypes; although there was a trend for lower HDL-C levels for the AA and AG + AA genotypes. Those with the AG and AG + AA genotypes displayed significantly higher glucose levels (p = .02 and p = .002, respectively); with a trend toward a higher metabolic syndrome prevalence and increased abdominal perimeters in both variants (AG and AG + AA). The AG genotype was related to higher glucose levels but not with abnormal lipid parameters. There is a need for more research in this regard.

Original languageEnglish
Pages (from-to)243-246
Number of pages4
JournalGynecological Endocrinology
Issue number3
Early online date9 Aug 2019
Publication statusPublished - 3 Mar 2020


  • Lipids
  • metabolic
  • middle age
  • women
  • transcription
  • export multiprotein complex
  • THO complex
  • polymorphisms
  • RISK

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