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The role of DNA methylation in the pathogenesis of autoimmune thyroiditis during iodine excess

Autoimmune thyroid diseases after 25 years of universal salt Iodization: an epidemiologic study of Chinese adults in areas with different water iodine levels

Status
Recruiting
Phases
Early Phase 1
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR2000039105
Enrollment
Unknown
Registered
2020-10-17
Start date
2020-10-29
Completion date
Unknown
Last updated
2021-01-18

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Autoimmune thyroiditis

Interventions

two groups:Whether the subjects suffer from autoimmune thyroiditis

Sponsors

Harbin Medical University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 60 Years

Inclusion criteria

Inclusion criteria: Cases: Serum thyroid peroxidase antibody (TPOAb) or thyroglobulin antibody (TgAb) positive with hypothyroidism or subclinical hypothyroidism, combined with thyroid ultrasound. Control: 1. Normal healthy persons matched with age, sex, BMI and place of residence in the case group. 2. No history of acute or chronic disease, long-term use of hormones or drugs, personal or family history of thyroid disease and other autoimmune diseases, and no pregnancy. 3. Physical examination showed no goiter, laboratory examination showed negative thyroid autoantibodies (TPOAb, TgAb), other thyroid function indicators were normal, and thyroid ultrasound showed no abnormalities (gland size, shape, internal echo were normal, no nodules).

Exclusion criteria

Exclusion criteria: 1. Patients with congenital thyroid diseases; 2. Patients who have taken antithyroid drugs or thyroxine in the past year; 3. Patients with autoimmune diseases, endocrine diseases, heart diseases, chronic diseases, family genetic diseases and pregnant women.

Design outcomes

Primary

MeasureTime frame
Methylation levels of related genes;

Countries

China

Contacts

Public ContactHongmei Shen

Centre for Endemic Disease Control, Chinese Centre for Disease Control and Prevention, Harbin Medical University

shenhm119@hrbmu.edu.cn+86 13633637369

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 14, 2026