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 simply the …

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 …

Fever is a well-known effect, hence the term "pyrogen." About one hour after the injection of pyrogens into rabbits (or man), there is a rise in body temperature.

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 …

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.

May 23, 2025 · The meaning of PYROGEN is a fever-producing substance.

Pyrogen (fever), a fever inducing substance.

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 types …

Pyrogens are substances that cause a rise in body temperature, leading to what is commonly known as a fever. These compounds signal the body to elevate its internal thermostat, a natural response to …