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Hormonal Regulation

Hormonal Regulation

The renin-aldosterone system is an endocrine system which guides the renal absorption of water and electrolytes, thus managing blood pressure and osmoregulation. Activation of the system begins in the kidneys with a small cluster of cells adjacent to the afferent and efferent blood vessels of the renal corpuscle. As the nephrons are filtering blood, juxtaglomerular cells monitor blood pressure. If they detect a decrease in pressure, they release the hormone renin into the bloodstream.

Hormonal Regulation

Hormonal Regulation

Hormones regulate a significant portion of digestion through activation of the neuroendocrine system. The neuroendocrine system of digestion contains many different hormones all with multiple functions that are both, directly and indirectly, involved in digestion.

Major Hormones and Their Functions

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...

Types of Hormones

Types of Hormones

Hormones can be classified into three main types based on their chemical structures: steroids, peptides, and amines. Their actions are mediated by the specific receptors they bind to on target cells.

Types of Hormones

Types of Hormones

Hormones are classified into four main groups: steroids, eicosanoids, amino acid-based derivatives, and peptide hormones.
Steroids and eicosanoids fall under the category of lipid-soluble hormones. Steroids are derived from cholesterol and feature four interconnected carbon rings with variable side chains. Notable examples include estradiol from ovaries and testosterone from testes, exemplifying the critical roles of these lipid-soluble hormones in reproductive physiology. Eicosanoids, derived...

Target Cell Response to Hormones

Target Cell Response to Hormones

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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Related Experiment Video

Updated: Mar 12, 2026

Protocol for Studying Extinction of Conditioned Fear in Naturally Cycling Female Rats

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Published on: February 23, 2015

Hormone Therapy in Clinical Equine Practice.

Patrick M McCue¹

¹Equine Reproduction Laboratory, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, 3101 Rampart Road, Ft. Collins, CO 80523, USA.

The Veterinary Clinics of North America. Equine Practice

|November 5, 2016

Summary

This review covers hormone therapies for equine reproductive management. It details therapeutic options for various clinical uses in horses.

Keywords:

Clinical equine practice Equine hormone therapy Equine reproductive management

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Area of Science:

Veterinary Medicine
Reproductive Biology
Equine Science

Background:

Hormone therapies are integral to equine reproductive management.
Diverse clinical applications necessitate a comprehensive understanding of these treatments.

Purpose of the Study:

To review current therapeutic options in equine reproductive management.
To provide an overview of hormone therapies for various clinical indications in horses.

Main Methods:

Literature review of existing studies and clinical practices.
Synthesis of information on different hormone therapies and their applications.

Main Results:

Identified a wide range of hormone therapies utilized in equine practice.
Cataloged therapeutic strategies for specific reproductive conditions in horses.

Conclusions:

Hormone therapies offer versatile solutions for equine reproductive challenges.
Understanding these options is crucial for effective clinical management of horses.