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Related Concept Videos

Hyperthyroidism II: Pathophysiology01:27

Hyperthyroidism II: Pathophysiology

Hyperthyroidism is a hypermetabolic state caused by elevated levels of thyroid hormones, triiodothyronine (T3) and thyroxine (T4). It results from dysregulation at the thyroid, pituitary, or immune system level and affects multiple organ systems.PathophysiologyThe most common cause of hyperthyroidism is Graves’ disease, an autoimmune disorder in which antibodies, specifically thyroid-stimulating antibodies (TSAb), a subtype of TSH receptor antibodies (TRAb), bind to and activate TSH receptors...
Hypothyroidism II: Pathophysiology01:23

Hypothyroidism II: Pathophysiology

Hypothyroidism is a disorder characterized by insufficient production of thyroid hormones, which regulate metabolism, energy balance, and multiple organ systems.TypesHypothyroidism is classified based on the level of dysfunction. Primary hypothyroidism results from intrinsic thyroid gland dysfunction, causing reduced hormone production despite normal or increased stimulation. Secondary hypothyroidism arises from inadequate thyroid-stimulating hormone (TSH) secretion by the pituitary. Tertiary...
Hyperthyroidism I: Introduction01:25

Hyperthyroidism I: Introduction

Hyperthyroidism is a type of thyrotoxicosis characterized by the thyroid gland's overproduction of the thyroid hormones triiodothyronine (T3) and thyroxine (T4). This hormone excess increases the basal metabolic rate and enhances sensitivity to catecholamines.DiagnosisDiagnosis is based on clinical features and biochemical testing. It typically shows suppressed thyroid-stimulating hormone (TSH) levels below 0.4 mIU/L, with elevated free T3 and/or T4. Additional tests, including thyroid...
Functions of Thyroid Hormones01:18

Functions of Thyroid Hormones

The thyroid hormone (TH) plays a pivotal role in the intricate orchestration of physiological processes, exerting profound effects on development, metabolism, and homeostasis throughout different life stages.
TH is indispensable for the normal development and maturation of the skeletal, muscular, and nervous systems during fetal and childhood growth. It facilitates bone mineral turnover and regulates protein synthesis in developing tissues, contributing significantly to overall growth and...
Obesity01:24

Obesity

The Body Mass Index (BMI) is a numerical value derived from a person's weight and height, used to categorize individuals into weight ranges. It is calculated using the formula: weight in kilograms divided by height in meters squared. Obesity is a health condition characterized by excessive accumulation of adipose tissue that poses health risks, often diagnosed with a BMI ≥ 30. This excess fat storage occurs when surplus dietary calories are converted into triglycerides and stored in adipocytes...
Graves Disease II: Pathophysiology01:24

Graves Disease II: Pathophysiology

Graves’ disease is an autoimmune disorder characterized by the production of thyroid-stimulating immunoglobulins (TSI) that activate TSH receptors, leading to excessive synthesis and release of thyroid hormones (T3 and T4) and resulting in hyperthyroidism.Among all causes of hyperthyroidism, Graves’ disease is the most common and can happen at any age, though it is more frequent in women. It produces a hypermetabolic state with features such as weight loss, tachycardia, tremor, and heat...

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Thyroid function and obesity.

Silvia Longhi1, Giorgio Radetti

  • 1Regional Hospital of Bolzano, Pediatrics, Bolzano, Italy.

Journal of Clinical Research in Pediatric Endocrinology
|November 15, 2012
PubMed
Summary

Childhood obesity can alter thyroid function and structure, but these changes often improve with weight loss. This suggests thyroid issues in obese children may be a consequence, not a cause, requiring no specific treatment.

Area of Science:

  • Pediatric endocrinology
  • Metabolic disorders
  • Public health challenges

Background:

  • Childhood obesity is a major health crisis in developed nations.
  • Obesity is linked to metabolic disturbances, increasing risks for diabetes and cardiovascular disease.
  • Altered thyroid function is frequently observed in obese children, but its causal role remains unclear.

Purpose of the Study:

  • To investigate the relationship between childhood obesity and thyroid function/structure.
  • To determine if thyroid alterations are a cause or consequence of obesity.
  • To assess the impact of weight loss on thyroid parameters in obese children.

Main Methods:

  • Review of existing literature on childhood obesity and thyroid function.
  • Analysis of studies examining thyroid structure in obese pediatric populations.

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  • Evaluation of outcomes following weight loss interventions in affected children.

    • Main Results:

    • Thyroid function and structure appear affected in obese children.
    • Evidence suggests these thyroid alterations may resolve after successful weight loss.
    • The findings imply thyroid changes are likely a consequence of obesity.

    Conclusions:

    • Thyroid function and structural alterations in obese children may be reversible.
    • Weight loss is a key factor in improving thyroid health in this population.
    • Specific thyroid treatments may not be necessary if obesity is addressed.