Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Adrenergic Antagonists: Pharmacological Actions of β-Receptor Blockers01:27

Adrenergic Antagonists: Pharmacological Actions of β-Receptor Blockers

β-receptor blockers significantly impact the cardiovascular system by counteracting catecholamine-induced sympathetic responses. These medications decrease heart rate, contractility, and cardiac output, potentially leading to cardiac depression, life-threatening bradycardia, and death. Therapeutically, β-blockers function as mild antihypertensives and are utilized in treating angina pectoris and cardiac arrhythmias. However, nonselective β-blockers inhibit β2-receptors in bronchial smooth...
Adrenergic Agonists: Therapeutic Uses01:30

Adrenergic Agonists: Therapeutic Uses

Adrenergic agonists have diverse therapeutic uses across various medical conditions and emergencies.
Emergency and Intensive Care Unit (ICU) applications: Pressor agents increase blood pressure, heart rate, and contractility in shock and organ failure situations. Dopamine can induce vasodilation and stimulate adrenoceptors. Endogenous catecholamines are effective in treating cardiogenic shock. α2-agonists like clonidine can reverse anesthesia-induced hypertension.
Allergies and anaphylaxis:...
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...
Adrenergic Antagonists: Pharmacological Actions of ɑ-Receptor Blockers01:22

Adrenergic Antagonists: Pharmacological Actions of ɑ-Receptor Blockers

α-Adrenergic antagonists, known as α-blockers, exert their effects by inhibiting α-adrenoceptors, leading to specific physiological actions. α1-blockers and α2-blockers have distinct pharmacological actions and therapeutic applications.
α1-blockers: These drugs inhibit α1-adrenoceptors on smooth muscle cells, resulting in vasodilation. This vasodilation lowers blood pressure, making α1-blockers valuable in treating hypertension. Additionally, α1-blockers effectively address urinary obstruction...
Adrenergic Receptors (Adrenoceptors): Classification01:27

Adrenergic Receptors (Adrenoceptors): Classification

Adrenergic receptors, or adrenoceptors, respond to the autonomic neurotransmitter noradrenaline and other endogenous catecholamine agonists. They are classified into two main families, α and β, based on their pharmacological response and are further subdivided depending on their location, elicited response, and affinity to specific agonists or antagonists.
α-Adrenoceptors
α-Adrenoceptors are classified into two main subtypes: α1 and α2. The α1 adrenoceptors, which are found on postsynaptic...
Adrenergic Agonists: Therapeutic Classification01:18

Adrenergic Agonists: Therapeutic Classification

Adrenergic agonists can be classified based on their therapeutic uses and mechanisms of action. They serve various purposes in clinical applications.
Vasopressor or pressor agents: They increase blood pressure and function as cardiac stimulants. Examples include endogenous catecholamines (norepinephrine and dopamine) and synthetic agents (phenylephrine).
Bronchodilators: β2-agonists can relax bronchial muscles and widen airways. They are commonly used for treating obstructive pulmonary...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Successful use of problem-solving methodology to reduce pharmacy chemotherapy processing time.

Journal of the American Pharmacists Association : JAPhA·2020
Same author

A Global Loss of Dio2 Leads to Unexpected Changes in Function and Fiber Types of Slow Skeletal Muscle in Male Mice.

Endocrinology·2019
Same author

Calcium oxalate supersaturation increases early after Roux-en-Y gastric bypass.

Surgery for obesity and related diseases : official journal of the American Society for Bariatric Surgery·2013
Same author

A potential mechanism for the sexual dimorphism in the onset of puberty and incidence of idiopathic central precocious puberty in children: sex-specific kisspeptin as an integrator of puberty signals.

Frontiers in endocrinology·2012
Same author

Thyroid hormone receptor-α gene knockout mice are protected from diet-induced hepatic insulin resistance.

Endocrinology·2011
Same author

Mutagenesis and analysis of genetic mutations in the GC-rich KISS1 receptor sequence identified in humans with reproductive disorders.

Journal of visualized experiments : JoVE·2011

Related Experiment Video

Updated: Jul 7, 2026

In vivo Characterization of Endocrine Disrupting Chemical Effects via Thyroid Hormone Action Indicator Mouse
04:14

In vivo Characterization of Endocrine Disrupting Chemical Effects via Thyroid Hormone Action Indicator Mouse

Published on: October 6, 2023

Thyroid-adrenergic interactions: physiological and clinical implications.

J Enrique Silva1, Suzy D C Bianco

  • 1Baystate Medical Center, Tufts University Medical School, Springfield, Massachusetts 01199, USA. enrique.silva@bhs.org

Thyroid : Official Journal of the American Thyroid Association
|February 19, 2008
PubMed
Summary
This summary is machine-generated.

The sympathoadrenal system and thyroid hormone (TH) work together to regulate body temperature and energy. Disruptions in their interaction can lead to metabolic issues and disease symptoms.

Related Experiment Videos

Last Updated: Jul 7, 2026

In vivo Characterization of Endocrine Disrupting Chemical Effects via Thyroid Hormone Action Indicator Mouse
04:14

In vivo Characterization of Endocrine Disrupting Chemical Effects via Thyroid Hormone Action Indicator Mouse

Published on: October 6, 2023

Area of Science:

  • Endocrinology
  • Physiology
  • Metabolism

Background:

  • The sympathoadrenal system (sympathetic nervous system and adrenal medulla) and thyroid hormone (TH) are ancient systems regulating independent functions.
  • Homeothermy led to TH acquiring a thermogenic role, synergizing with the sympathoadrenal system to maintain body temperature.
  • This synergy is crucial for cold adaptation and high-energy states.

Purpose of the Study:

  • To explore the intricate interactions between the sympathoadrenal system and thyroid hormone.
  • To understand the adaptive value and physiological consequences of their coordinated functions.
  • To investigate the role of disrupted interactions in metabolic variability and disease.

Main Methods:

  • The study is a review of existing literature and emerging results.
  • It synthesizes information on the physiological roles and interactions of the two systems.
  • It analyzes pathological states and their impact on metabolic regulation.

Main Results:

  • Sympathoadrenal system and TH exhibit synergistic interactions, particularly in thermogenesis and energy metabolism.
  • Catecholamines can activate TH in specific tissues like brown adipose tissue.
  • Disruptions in this coordination are linked to thyrotoxicosis, hypothyroidism, and metabolic variability (e.g., fuel efficiency, energy expenditure).

Conclusions:

  • The coordinated action of the sympathoadrenal system and TH is vital for thermoregulation and energy homeostasis.
  • Dysregulation leads to significant physiological disruptions and disease manifestations.
  • Further research into these interactions may explain individual metabolic differences and inform therapeutic strategies.