NCT03612908

TSHβX1 and D2 THR92ALA in Pregnancy

TSHβX1 Splice Variant Expression and D2 Thr92Ala Polymorphism Analysis in Pregnant Women With Thyroid Diseases

• Status: Completed
• Phase: —
• Study type: Observational
• Enrollment: 96 (actual)
• Sponsor: Materno-Perinatal Hospital of the State of Mexico · Academic / Other
• Sex: Female
• Age: 18 Years – 44 Years
• Healthy volunteers: Accepted

Summary

Thyroid diseases are pathologies that frequently affect pregnant women causing serious complications. This current research aims to find out whether the expression of TSHβX1 splice variant and D2 Thr92Ala polymorphism in the DIO2 gene are associated with thyroid disease in Mexican pregnant women.

Detailed description

Deiodinase 2 (DIO2) is a selenoenzyme responsible for the deiodination of T4 to T3, which makes it crucial for the proper functioning of thyroid hormones. Polymorphisms of DIO2 alters the enzymatic function. In addition, the Ala92Ala genotype was reported to be related with a reduction in the placental activity of D2, which could worsen gestational complications. In the other hand, the TSHβ gene (NC\_000001.11) located on chromosome 1 at position 38p12, codes for the beta unit of the thyroid stimulating hormone (TSH). It is admitted that genetic variants can show a different spectrum of actions. This was a clinical, comparative, prospective and transversal study. Pregnant women aged 18-44 years old, were invited to identify it they had a DIO2 polymorphism or the TSHβX1 splice variant.

Conditions

• Pregnancy Related
• Hypothyroidism
• Hyperthyroidism

Timeline

• Start date: 2016-09-01
• Primary completion: 2017-12-15
• Completion: 2018-06-30
• First posted: 2018-08-02
• Last updated: 2018-08-02

Locations

1 site across 1 country: Mexico