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Related Concept Videos

Genome-wide Association Studies-GWAS01:11

Genome-wide Association Studies-GWAS

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Genome-wide association studies or GWAS are used to identify whether common SNPs are associated with certain diseases. Suppose specific SNPs are more frequently observed in individuals with a particular disease than those without the disease. In that case, those SNPs are said to be associated with the disease. Chi-square analysis is performed to check the probability of the allele likely to be associated with the disease.
GWAS does not require the identification of the target gene involved in...
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Synthesis and Regulation of Thyroid Hormones01:20

Synthesis and Regulation of Thyroid Hormones

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Low blood levels of the thyroid hormones — triiodothyronine (T3) and thyroxine (T4) — signal the hypothalamus to release the thyrotropin-releasing hormone (TRH). TRH then reaches the pituitary gland and stimulates the release of thyroid-stimulating hormone(TSH) into the bloodstream.
Upon reaching the thyroid gland, TSH stimulates the follicular cells' active uptake of iodide ions from the blood. The ions diffuse to the apical surface of the cells and are oxidized to iodine. The...
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Pharmacogenetics of Drug Targets: β₂-Adrenergic Receptors, Apo E, Thymidylate Synthase01:11

Pharmacogenetics of Drug Targets: β₂-Adrenergic Receptors, Apo E, Thymidylate Synthase

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Genetic polymorphisms in drug targets have emerged as critical determinants of interindividual variability in drug response and toxicity. Pharmacogenomic investigations increasingly focus on identifying these variations to personalize and optimize therapeutic interventions. A drug target may be a receptor, enzyme, or signaling protein involved in pharmacologic responses or disease-related pathways. While early pharmacogenetic studies focused primarily on drug metabolism, current research...
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Pharmacogenetic Phenotypes: Alterations in Pharmacokinetics, Drug Targets and Biologic Milieu01:29

Pharmacogenetic Phenotypes: Alterations in Pharmacokinetics, Drug Targets and Biologic Milieu

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Genetic variations significantly influence drug response through pharmacokinetics, receptor interactions, and biologic milieu modifications. Pharmacokinetic alterations impact drug metabolism and clearance, affecting efficacy and toxicity. Variants in drug-metabolizing enzymes, such as CYP2C9 and CYP2C19, alter drug activation and elimination. For example, CYP2C9 loss-of-function variants require lower warfarin doses to prevent excessive bleeding, while CYP2C19 variants reduce clopidogrel...
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The Thyroid Gland01:23

The Thyroid Gland

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The thyroid gland is a small, butterfly-shaped gland located in the neck and covers the anterior surface of the trachea. The gland has two lateral lobes connected by a thin tissue mass called the isthmus. Internally, each lobe comprises many small spherical structures known as thyroid follicles, surrounded by a network of blood vessels.
The follicles have a central cavity lined by simple cuboidal to squamous epithelial cells called follicular cells. These cells produce the glycoprotein...
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Functions of Thyroid Hormones01:18

Functions of Thyroid Hormones

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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.
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Related Experiment Video

Updated: Apr 4, 2026

Generation of a Mouse Spontaneous Autoimmune Thyroiditis Model
04:39

Generation of a Mouse Spontaneous Autoimmune Thyroiditis Model

Published on: March 17, 2023

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Hyperthyroidism drives gout risk: A Mendelian randomization observational study.

Yangtao Pan1,2, Shichao Zhou3, Danyan Luo4

  • 1Department of Colorectal Surgery, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China.

Medicine
|April 3, 2026
PubMed
Summary

Hyperthyroidism, not hypothyroidism, causally increases gout risk. This genetic study confirms hyperthyroidism as an independent risk factor for gout, suggesting careful uric acid monitoring for affected patients.

Keywords:
Mendelian randomizationcausal inferencegouthyperthyroidismhypothyroidism

Related Experiment Videos

Last Updated: Apr 4, 2026

Generation of a Mouse Spontaneous Autoimmune Thyroiditis Model
04:39

Generation of a Mouse Spontaneous Autoimmune Thyroiditis Model

Published on: March 17, 2023

2.7K

Area of Science:

  • Endocrinology
  • Rheumatology
  • Genetic Epidemiology

Background:

  • The relationship between thyroid dysfunction and gout is unclear due to observational study limitations.
  • Confounding factors and reverse causality complicate understanding the link between thyroid disorders and gout.

Purpose of the Study:

  • To investigate the causal effect of hyperthyroidism and hypothyroidism on gout risk using Mendelian randomization.
  • To clarify the unidirectional causal relationship between thyroid dysfunction and gout.

Main Methods:

  • Utilized 2-sample Mendelian randomization (MR) with summary statistics from UK Biobank and FinnGen.
  • Selected stringent genetic instruments for thyroid dysfunction (P < 5×10-8, r2 < 0.001).
  • Employed inverse-variance weighted regression, MR-Egger, weighted median, and bidirectional MR for robust causal inference and sensitivity analyses.

Main Results:

  • Genetically predicted hyperthyroidism showed a significant positive causal association with gout in both cohorts (UK Biobank: OR=1.215, P=3.12×10-5; FinnGen: OR=1.091, P=0.041).
  • No significant causal link was found between hypothyroidism and gout.
  • Bidirectional MR and sensitivity analyses confirmed no reverse causality and ruled out significant pleiotropy or heterogeneity.

Conclusions:

  • Hyperthyroidism is an independent risk factor for gout, establishing a likely unidirectional causal relationship.
  • Hypothyroidism does not appear to causally influence gout risk.
  • Monitoring uric acid levels in hyperthyroid patients is recommended, and underlying pathophysiological mechanisms require further investigation.