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Association between Angiotensin-converting enzyme (ACE) insertion/deletion (I/D) polymorphism on the susceptibility to psoriasis and oxidative stress (OS) in a cohort of pediatric psoriatic patients in Sri Lanka: A cross sectional study

Health Sci Rep. 2024 Sep 3;7(9):e2309. doi: 10.1002/hsr2.2309. eCollection 2024 Sep.

ABSTRACT

BACKGROUND: Pediatric psoriasis accounts for nearly one-third of the global psoriasis burden. Multiple lines of evidence have shown the relationship between Angiotensin-converting enzyme (ACE) Insertion (I)/deletion(D) polymorphism with psoriasis susceptibility, and oxidative stress (OS) in psoriatic patients. However, such studies, particularly on pediatric psoriasis, are scarce in the local setting.

AIMS: Our study investigated the prevalence of ACE I/D polymorphism and its associations with oxidative stress in pediatric psoriasis patients in Sri Lanka.

METHODS: Thirty patients were recruited for this study after obtaining ethical clearance. The polymerase chain reaction was used to explore the ACE I/D polymorphism. Serum Nitric Oxide (NO) levels and the Total Antioxidant Capacity (TAC) were measured using the Griess assay and the FRAP assay. Clinical details were obtained from the clinic reports.

RESULTS: Female predominance (76.67%) in pediatric psoriasis was reported, while Plaque psoriasis (66.67%) was found to be the most prevalent form. I/D was reported as the predominant genotype (66.67%) while I/I and D/D genotypes were recorded in 23.33% and 10% of patients, respectively. Significantly higher NO levels were observed in I/D patients than in I/I patients but not among other groups. No differences in TAC among ACE genotypes were reported.

CONCLUSION: This pilot study revealed female gender and I/D genotype with increased NO levels as risk factors for pediatric psoriasis in Sri Lanka. However, it is prudent to increase the sample size to further validate the results.

PMID:39229476 | PMC:PMC11369909 | DOI:10.1002/hsr2.2309

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