Association of polymorphisms of HSD11B1 and ACE genes with trachoma disease

• Published in: Journal of genetics 2024-06, Vol.103 (2), p.22-22, Article 22
• Main Authors: VALDEZ-VELAZQUEZ, LAURA L., OCHOA-DÍAZ-LÓPEZ, HÉCTOR, DELGADO-ENCISO, IVÁN, RANGEL-VILLALOBOS, HÉCTOR, RODRÍGUEZ-SÁNCHEZ, IRÁM P., GARCÍA-MIRANDA, ROSARIO, VELÁZQUEZ-RAMÍREZ, DOIREYNER DANIEL, REYES-MÉNDEZ, NANCY A., BARAJAS-SAUCEDO, CARLOS EDUARDO, MARTÍNEZ-FIERRO, MARGARITA L.
• Format: Article
• Language: English
• Subjects: 11-beta-Hydroxysteroid Dehydrogenase Type 1 - genetics; Adult; Alleles; Animal Genetics and Genomics; Biomedical and Life Sciences; blindness; Case-Control Studies; Chlamydia trachomatis; Chlamydia trachomatis - genetics; Evolutionary Biology; Female; gender; Gene Frequency; Genetic Association Studies; Genetic Predisposition to Disease; Genotype; Haplotypes; Humans; inflammation; interleukin-10; Life Sciences; linkage disequilibrium; Male; Mexico; Microbial Genetics and Genomics; Middle Aged; Peptidyl-Dipeptidase A; Plant Genetics and Genomics; Polymorphism, Single Nucleotide; Research Article; risk; Trachoma - genetics
• ISSN: 0973-7731; 0973-7731
• DOI: 10.1007/s12041-024-01474-w

Trachoma, caused by Chlamydia trachomatis , is the most common infectious blindness in the world and is present in indigenous Mayan from Chiapas (Mexico). Inflammatory genes are activated when suffering from trachoma, thus some polymorphisms could increase the susceptibility to develop irreversible blindness. This study aimed to evaluate the genetic risk of developing late-stage trachoma in Mayan ethnic groups. In a case–control study ( n  = 51 vs n  = 102, respectively), the following single-nucleotide polymorphisms (SNPs) in genes related to inflammation were analysed: HSD11B1 (rs11807619), HSD11B1 (rs932335), ABCG2 (rs2231142), SLCO1B1 (rs4149056), IL-10 (rs1800890), TNF (rs1800629), MMP2 (rs243865) and ACE . Three SNPs were associated with late-stage trachoma risk: (i) the T allele of rs11807619, (ii) the C allele of rs932335, which are linked to the HSD11B1 gene (OR = 22.5–27.3), particularly in men when adjusts for gender (OR = 16–16.7); and (iii) D allele of rs4340 in the ACE gene (OR = 5.2–5.3). In fact, significant linkage disequilibrium demonstrated association between ACE gene and HSD11B1 SNPs (r = 0.17–0.179; P  = 0.0048–0.0073). Two SNPs HSD11B1 gene ( P  = 0.013 vs 0.0039) and HSD11B1 – ACE haplotypes showed association with late-stage trachoma in Mayan ethnic groups.