Steroid Hormones

Definition

Steroid hormones are a group of hormones that act as chemical messengers in the body, playing a key role in regulating metabolism, inflammation, immune functions, salt and water balance, development of sexual characteristics, and the ability to withstand illness and injury.

Scientific / Technical Definition

Steroid hormones are a class of hormones that are synthesized from cholesterol and include hormones such as testosterone, estrogen, cortisol, and aldosterone. They are lipid-soluble molecules that can pass through cell membranes to bind to specific receptors inside cells, influencing a variety of physiological processes and gene expression.

Benefits

• Regulate metabolism and energy balance.
• Manage stress response and reduce inflammation.
• Support reproductive functions and sexual characteristics.
• Maintain salt and water balance for blood pressure control.
• Assist in the development of secondary sexual characteristics.

Examples

• Cortisol (stress hormone)
• Testosterone (male sex hormone)
• Estrogen (female sex hormone)
• Aldosterone (regulates salt and water balance)

Additional Information

• Importance: Steroid hormones are crucial for maintaining homeostasis and normal bodily functions, including growth, development, and metabolism.

Related Terms

• Cholesterol
• Endocrine system
• Metabolism
• Lipid-soluble hormones

References

• Steroid Hormones: Functions and Roles
• The Role of Steroid Hormones in Metabolism