germfree


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germfree

(jûrm′frē′)
adj.
Free of microorganisms.

gnotobiotic

Biology
adjective Referring to a system to which only preselected components, organisms and nutrients are introduced. Gnotobiotic organisms are either experimental models (e.g., mice with naïve immune systems), or “experiments of nature”, in which the natural immune defence is grossly defective (e.g., severe combined immune deficiency); prolonged survival of the host requires complete avoidance of exposure to pathogens.
References in periodicals archive ?
On the other hand, germfree animals upon conventionalization show an increase in vasculature, as angiogenesis is restarted (46).
Germfree animals not only appear less efficient at harvesting calories, he explains, but also "are prone to certain vitamin deficiencies" because gut microbes synthesize certain nutrients, such as vitamins [B.
These labs are a significant advancement in on-site threat assessment," says Keith Landy, President of GERMFREE.
The germfree mice had 52 percent less swelling when injected with carrageenan.
To determine how changes in the bacterial communities relate to the animals' body weights, Gordon and his team transferred gut microbes from the obese and lean mice to germfree mice.
For peace-of-mind, it's important to look for new humidifier technologies like the ultraviolet light chamber in the Vicks GermFree Humidifier that kills up to 99.
KILLER COATINGS Making surfaces germfree often takes no more than a good scrub with soap and water.
Vicks launches new GermFree Humidifier and Soothing Vapors just in time for the first sniffles of the season
Louis has long studied mice born and raised germfree (SN: 5/31/03,p.
During the past 50 years, researchers have created germfree mice and rats by delivering the animals by cesarean section into sterile environments and maintaining them there.
Building owners and residents alike now have an affordable, low maintenance solution to providing high quality, germfree indoor air.
Finally, studies have shown that mice with a form of PKD will survive longer if kept in a germfree environment.