Objective: Subclinical hypothyroidism (SCH) with thyroid-stimulating hormone (TSH) less than 10 µIU/ml is a common finding discovered during routine thyroid function testing. Thyroxine substitution and its benefits to alleviate dyslipidemia and oxidative stress (OXs) markers at this stage are a matter of debate. Methods: This study aimed to investigate the influence of thyroxine substitution on lipid profile and OXs markers in newly diagnosed SCH subjects. The study included a total number of 50 newly diagnosed (20 treated and 30 untreated), SCH subjects aged 20-50 years with (TSH<10 µIU/ml), and free thyroxine (FT4) levels in the normal range. Patients on medications that could cause thyroid hormone dysfunction, diabetes mellitus, and current or pregnancy during the last 2 years were excluded from the study. Serum TSH, T3, T4, FT4, anti-thyroid peroxidase antibodies, total cholesterol (TC), high-density lipoprotein cholesterol (HDL), triglycerides (TG), low-density lipoprotein cholesterol (LDL), and ischemia modified albumin (IMA) were determined in all subjects at baseline and after 9 months. Results: After thyroxine replacement, a significant decrease in TSH, LDL, IMA and an increase in FT4 were observed. The decrease in TC was not statistically evident. There was no significant change in T3, T4, TG, HDL, after treatment. The untreated group showed an insignificant increase only in TSH. Conclusion: Thyroid substitution therapy has a favorable influence on lipid profile and OXs, where it particularly reduced LDL and IMA.
|Number of pages||3|
|Journal||Asian Journal of Pharmaceutical and Clinical Research|
|Publication status||Published - 01-01-2017|
All Science Journal Classification (ASJC) codes
- Pharmaceutical Science
- Pharmacology (medical)