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Related Concept Videos

Major Hormones and Their Functions01:27

Major Hormones and Their Functions

Hormones, the biochemical messengers produced by endocrine glands, are pivotal in regulating bodily functions and maintaining homeostasis. Each hormone's balance is crucial; imbalances can lead to significant physiological disruptions. Major hormones include oxytocin, cortisol, epinephrine, estrogen, testosterone, thyroxine, growth hormone, insulin, and glucagon.
Oxytocin, produced in the hypothalamus and released by the pituitary gland, plays a role in social bonding, childbirth, and lactation.
Endocrine Signaling01:45

Endocrine Signaling

Endocrine cells produce hormones to communicate with remote target cells found in other organs. The hormone reaches these distant areas using the circulatory system. This exposes the whole organism to the hormone but only those cells expressing hormone receptors or target cells are affected. Thus, endocrine signaling induces slow responses from its target cells but these effects also last longer.
Endocrine Signaling01:45

Endocrine Signaling

Endocrine cells produce hormones to communicate with remote target cells found in other organs. The hormone reaches these distant areas using the circulatory system. This exposes the whole organism to the hormone but only those cells expressing hormone receptors or target cells are affected. Thus, endocrine signaling induces slow responses from its target cells but these effects also last longer.
Aging01:26

Aging

Aging is a complex biological phenomenon influenced by various processes that affect cellular and systemic functions. Several prominent theories attempt to explain its mechanisms, highlighting cellular limitations, oxidative damage, and hormonal changes as central factors in aging.
Cellular Clock Theory
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What is the Endocrine System?00:46

What is the Endocrine System?

The endocrine system sends hormones—chemical signals—through the bloodstream to target cells—the cells the hormones selectively affect. These signals are produced in endocrine cells, secreted into the extracellular fluid, and then diffuse into the blood. Eventually, they diffuse out of the blood and bind to target cells which have specialized receptors to recognize the hormones.
Adrenal Gland Disorders01:27

Adrenal Gland Disorders

Adrenal gland disorders manifest when the production of adrenal hormones deviates from the norm, resulting in either excessive or insufficient concentrations.
Adrenal insufficiency, characterized by insufficient cortisol and aldosterone production, leads to conditions like Addison's disease. This disorder, affecting the adrenal cortex, exhibits symptoms such as skin bronzing, dehydration, low blood pressure, fatigue, and weight loss. Congenital adrenal hyperplasia, a genetic ailment causing...

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In vivo Characterization of Endocrine Disrupting Chemical Effects via Thyroid Hormone Action Indicator Mouse
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Published on: October 6, 2023

Antioxidant therapy in human endocrine disorders.

Saeid Golbidi1, Ismail Laher

  • 1Department of Pharmacology and Therapeutics, University of British Columbia, Vancouver, BC, Canada.

Medical Science Monitor : International Medical Journal of Experimental and Clinical Research
|December 29, 2009
PubMed
Summary

Reactive oxygen species (ROS) have dual roles, but overproduction causes oxidative stress, impacting endocrine diseases. Current antioxidant strategies need refinement for better clinical outcomes in human trials.

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Area of Science:

  • Biochemistry
  • Endocrinology
  • Cell Biology

Background:

  • Reactive oxygen species (ROS) exhibit dual roles, acting as signaling molecules and in host defense.
  • Overproduction of ROS leads to oxidative stress, damaging cellular components and contributing to human diseases.
  • Oxidative stress is implicated in endocrine dysfunctions such as diabetes, infertility, and thyroid diseases.

Purpose of the Study:

  • To review the pathophysiologic role of oxidative stress in common human endocrinopathies.
  • To evaluate the therapeutic potential of antioxidant strategies in endocrine diseases.
  • To analyze human clinical trial data on antioxidant interventions.

Main Methods:

  • Literature review focusing on oxidative stress mechanisms in endocrinopathies.
  • Analysis of human clinical trials investigating antioxidant therapies.
  • Discussion of pathophysiologic aspects and therapeutic potentials.

Main Results:

  • Oxidative stress is a significant factor in diabetes, male/female infertility, and thyroid disorders.
  • Evidence from clinical trials suggests antioxidant supplements do not universally promote health.
  • Existing antioxidant strategies show variable efficacy in managing oxidative stress-related endocrine conditions.

Conclusions:

  • The effectiveness of antioxidant strategies in human endocrinopathies requires further investigation.
  • Future antioxidant trials must optimize dosage, patient selection, treatment duration, and targeting mechanisms.
  • Refined trial designs are crucial for harnessing the therapeutic potential of antioxidants in endocrine disease management.