pyrogen

A pyrogen is defined as any substance that can cause a fever.

Electric matches consist of two parts, a bridgewire and a pyrogen.

Oxidation using hydrogen peroxide is often used as a low cost pyrogen destroying solution.

If the pyrogen is sufficiently conductive, it can act as the bridgewire as well.

That is why IL-1 is called endogenous pyrogen.

Tumor necrosis factor-α also acts as a pyrogen.

Bridgewires dipped in a suitable pyrotechnic composition (pyrogen) are known as electric matches.

LPS is also an exogenous pyrogen (external fever-inducing substance).

Pyrogen removal (depyrogenation)

A trigger of the fever, called a pyrogen, causes a release of prostaglandin E2 (PGE2).

For instance, to use hormone terminology, the action of cytokines may be autocrine or paracrine in chemotaxis and endocrine as a pyrogen.

Activated white blood cells release interleukin 1 (formerly called endogenous pyrogen), which tells the hypothalamus to push up the setting of the body's thermostat.

Kits include the thin wire needed for the bridgewire, such as nichrome wire, along with components for mixing the pyrogen.

The bacterial substance lipopolysaccharide (LPS), present in the cell wall of some bacteria, is an example of an exogenous pyrogen.

As a pleiotropic toxin, TCT also acts as a pyrogen and as a stimulant of slow-wave sleep.

The rocket motor includes the case, nozzle assembly, propellant, liner and insulation, pyrogen igniter, and propulsion arming and firing unit.

The drug may interfere with heat dissipation peripherally, increase the rate of metabolism, evoke a cellular or humoral immune response, mimic endogenous pyrogen, or damage tissues.

The mechanism for this destruction is unknown, but hydrogen peroxide can easily be removed further downstream in the purification process, and is therefore a useful method of pyrogen removal.

Outburst first recruits his girlfriend White Lotus, a young meta trained by the Warlords of Okaara, then he gathers Brahma, Loser, Pyrogen, and Psilencer.

He worked on the mechanism of recovery from pneumonia and was noted for early work on surface phagocytosis, research into the pathogenesis of fever, and endogenous pyrogen (now known as interleukin-1).

In addition to the readily ignitable component of the electric match pyrogen, some matches may also add additional components to provide a hotter, longer lasting flame, for igniting items that are difficult to ignite.

When sufficient electric current is passed through the bridgewire, the resistive heating causes the element to rise above the ignition temperature of the pyrogen, and the pyrogen begins to burn.

TNF, being an endogenous pyrogen, is able to induce fever, apoptotic cell death, sepsis (through IL1 & IL6 production), cachexia, inflammation and to inhibit tumorigenesis and viral replication.

The energetic material used, often called pyrogen, is usually a pyrotechnic composition made of a fuel and oxidizer, where the fuel produces a significant amount of hot particles that cause/promote the ignition of the desired material.

The bridgewire is a heating element, typically in the form of a loop or coil of thin wire, which is encased in the pyrogen, which is a quantity of readily ignited pyrotechnic initiator composition.