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Related Concept Videos

Chemical Signaling in the Endocrine System01:08

Chemical Signaling in the Endocrine System

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A signaling cascade is a series of events that facilitates the transmission of information within or between cells, culminating in a targeted response in the recipient cell. As chemical messengers, hormones are pivotal in initiating and modulating these intricate signaling cascades based on their solubility.
Lipid-soluble hormones, such as steroid hormones, demonstrate an intracellular action. These hormones traverse cell membranes due to their lipid nature. Once inside the target cell, they...
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Hormones intricately bind to receptors on the surface or within target cells, initiating a cascade of cellular responses.
Notably, the cellular response can be regulated by altering the number of receptors expressed in the cell. For example, prolonged exposure to elevated hormone levels results in a gradual decline or down-regulation in the number of receptors for that specific hormone on the cell surface. Conversely, in response to low hormone levels, cells may use up-regulation, producing an...
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An Overview of the Endocrine System01:10

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The endocrine system, a complex network of glands, orchestrates physiological balance within the body through the production and secretion of hormones. These hormones are chemical messengers in intercellular communication, acting as conduits between the secretory cells and distant target sites. They traverse the circulatory system by being released into the extracellular fluid, and their impact is specific to cells possessing receptors for a particular hormone.
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Toxic Reactions: Overview01:26

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When toxic substances penetrate the human body, they disseminate to various tissues, undergoing metabolic changes. This process yields reactive metabolites that may covalently bind with specific target molecules, resulting in toxicity.
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What is the Endocrine System?00:46

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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.
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Effects of Chemicals: Overview01:27

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Drugs, encompassing various chemical compounds from natural sources, lab synthesis, or genetic engineering, elicit different biological responses in living organisms. Some of these responses are desirable or therapeutic, while others are undesirable. The primary goal of administering a drug is to achieve a therapeutic effect, that is, to address a specific disease or health condition. Any concurrent effects outside of this therapeutic outcome are considered undesirable. These undesirable...
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Methods to Test Endocrine Disruption in Drosophila melanogaster
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Endocrine-Disrupting Chemicals and Disease Endpoints.

Changhwan Ahn1, Eui-Bae Jeung2

  • 1Laboratory of Veterinary Physiology, College of Veterinary Medicine, Jeju National University, Jeju 63243, Republic of Korea.

International Journal of Molecular Sciences
|March 29, 2023
PubMed
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Endocrine-disrupting chemicals (EDCs) impact hormones and health, affecting development and increasing disease risk. Understanding EDC-disease links is crucial for new health strategies.

Keywords:
endocrine disrupting chemicalendocrine systemendocrine-related diseases

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Area of Science:

  • Environmental Health
  • Toxicology
  • Endocrinology

Background:

  • Endocrine-disrupting chemicals (EDCs) interfere with hormone balance, impacting biological systems.
  • EDCs are linked to reproductive, neurological, metabolic, and developmental issues, and can stimulate tumor growth.
  • Exposure occurs during development, altering disease susceptibility and affecting wildlife through food chains.

Purpose of the Study:

  • To review the relationship between EDCs and diseases.
  • To understand disease endpoints associated with endocrine disruption.
  • To explore new prevention, treatment, and screening methods for EDC-related health concerns.

Main Methods:

  • Literature review of scientific studies on EDCs and associated diseases.
  • Analysis of chemical compounds with endocrine-disrupting properties (e.g., BPA, phthalates).
  • Examination of dietary uptake as a significant exposure route.

Main Results:

  • EDCs disrupt normal development and function, posing risks for various diseases including cancers.
  • Specific EDCs identified include bisphenol A, organochlorines, and phthalates.
  • The precise mechanisms linking EDCs to diseases require further elucidation.

Conclusions:

  • EDCs are a significant public health concern with widespread effects on human and wildlife health.
  • Further research is needed to clarify EDC-disease mechanisms.
  • Improved understanding can lead to better prevention and treatment strategies.