Invasiveness


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Invasiveness

 

the ability of agents of infection (viruses, bacteria, protozoans) to penetrate the body of a plant, animal, or person and to spread within it by overcoming the body ’s defenses through the manufacture of toxins and enzymes (chiefly hyaluronidase).

Invasiveness is characteristic of a species and, within a species, of various strains of the microorganism. The degree and speed of the spread of microorganisms from the initial site of entry to particular organs and tissues are defined as the invasiveness of the given strain of causative agent. The invasiveness depends on the age of the culture and may be increased by the repeated inoculation (passage) of susceptible animals.

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References in periodicals archive ?
The ability to predict potential invasiveness is important both for species that have already been introduced to a region but are not yet invasive and for species that may be introduced through the horticultural industry in the future.
BALTIMORE -- The biopharmaceutical company Oncomatrix has developed and clinically validated a new immunohistochemistry-based kit to diagnose and prognose the invasiveness of different tumors, such as pancreas, breast, lung, colon and head & neck: DMTXinvaScan.
In response to Patrick's accusations, a Dewhurst spokesman said the lieutenant governor is "concerned about the invasiveness of airport security screening procedures.
A collagen or hyaluronic acid injection is supposed to be very efficient to fight wrinkles, but some women fear that because of its invasiveness, pain generation and failure to achieve the expected results.
Some specific topics covered include regeneration of coexisting introduced versus native species of pine in the Canary Islands, invasive ascidians in waterways, field-level hyperspectral measurements for identifying wetland invasive plant species, gear for eradication of swimming crabs, and invasiveness of warm-season pasture legumes in the Southeastern US.
Previously, we demonstrated that a 12-lipoxygenase (12-LOX) metabolite of arachidonic acid, 12(S)-hydroxyeicosatetraenoic acid, enhances the invasiveness of prostate cancer cells and that a 12-LOX-selective inhibitor [N-benzyl-N-hydroxy-5-phenylpentanamide] reduces experimental metastasis in animal model systems.
The third is a tumour cell producing mena, a protein that promotes invasiveness.
He rejects such occupational conscription on grounds of the invasiveness of the gathering and acting upon information regarding people's preferences for different types of work that would be required to implement such a policy.
The minimal invasiveness creates a comfortable alternative to conventional esophageal pH testing and provides very sensitive and specific diagnostic results for clinicians.
They also found that this molecule, known as sarcosine, may be associated with prostate cancer invasiveness and aggressiveness.
Smith has also been involved in the development of technologies that reduce the invasiveness of surgical procedures, which improves the effectiveness of treatments and therapies while limiting possible complications from surgery, factors that are central to the well-being of Canadians and others around the world.
Basal-like breast cancer is characterised by a high degree of invasiveness and lack of expression of oestrogen receptor ?