Thyroid hormone profile in obese subjects--a clinical study

Area of Science:

• Endocrinology
• Metabolic Disorders
• Thyroidology

Background:

• Obesity is a complex metabolic condition associated with various health risks.
• Thyroid dysfunction can influence metabolism and body weight.
• Understanding the thyroid hormone profile in obese populations is crucial for comprehensive patient care.

Purpose of the Study:

• To investigate the thyroid hormone profile in a cohort of obese subjects.
• To determine the prevalence of thyroid dysfunction, including hypothyroidism, in this population.
• To explore the relationship between obesity severity and thyroid status.

Main Methods:

• Study included fifty obese subjects meeting specific body weight and body mass index (BMI) criteria.
• Thyroid hormone levels were assessed clinically and biochemically.
• Subjects were categorized based on BMI, with a focus on ranges from 30-40 kg/m2 and >40 kg/m2 (morbid obesity).

Main Results:

• 86% of obese subjects were found to be clinically and biochemically euthyroid.
• 14% of subjects exhibited hypothyroidism; 8% were clinically and biochemically hypothyroid, and 6% were only biochemically hypothyroid.
• No hypothyroid subjects presented with morbid obesity (BMI > 40 kg/m2).
• For hypothyroid subjects, the duration of obesity was less than 10 years in nearly three-fourths of cases.

Conclusions:

• Obesity is frequently associated with euthyroid status, but a notable percentage of obese individuals may have subclinical or overt hypothyroidism.
• Hypothyroidism in obese individuals does not appear to be strongly correlated with morbid obesity in this study cohort.
• Early detection and management of thyroid dysfunction in obese patients are important, considering the duration of obesity in affected individuals.