A pyrogen is defined as a substance that produces a rise in temperature in a human or animal, and pyrogens are categorized into exogenous pyrogens, which induce fever after parenteral …

pyrogen Any substance that causes fever. Endogenous pyrogens are proteins, such as interleukin-1, released by white blood cells in response to bacterial or viral infections.

A pyrogen is any agent that triggers the upward adjustment of the body’s thermoregulatory set point, located in the hypothalamus. While often associated with pathogens, a pyrogen is …

Fever is a highly significant indicator of disease. …system’s responses is to produce pyrogens. These chemicals are carried by the blood to the brain, where they disturb the functioning of the …

The meaning of PYROGEN is a fever-producing substance.

Aug 1, 2025 · Pyrogens are substances that can cause a fever response when introduced into the body. They are categorized into two types: exogenous and endogenous. Exogenous pyrogens …

Jul 30, 2025 · A pyrogen is any substance that induces a fever by causing an increase in the body's core temperature, activating the immune system as a protective response.

Nov 8, 2025 · In medicine, a pyrogen is any substance that produces fever or an increase in body temperature. These agents can be biological or non-biological and are classified into two main …

Pyrogens are substances that cause an increase in body temperature by triggering the hypothalamus to elevate the body's set point. They can be exogenous, originating from …

Jul 23, 2021 · The result is a condition called fever. The action of pyrogen resulting in a febrile response is thought to be a part of the body’s ability to combat infection. The increase in body …