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The host of the oral cavity in which the oral ecology is studied is also of importance. This is an example of a biotic, or living, environmental factor. General host health and immune system function is critical to oral microflora, as it determines which microbes are able to survive in the mouth.
The host's immune system controls the bacterial colonization of the mouth and prevents local infection of tissues. A dynamic equilibrium exists notably between the bacteria of dental plaque and the host's immune system, enabling the plaque to stay behind in the mouth when other biofilms are washed away. [19]
Inc. red complex; avoid immune detection; devour host for nutrition. Interfere with host immune response Trigger environ changes to make it more benign for them The ecological plaque hypothesis and the aetiology of periodontal diseases. The ecological concept consolidates both specific and non specific plaque hypothesis theories.
Tonsils are part of the human immune system. Located at the back of the throat, they “are constructed of lymphoid tissue that helps to filter and fight pathogens that enter through our mouths ...
The innate immune system is the dominant system of host defense in most organisms, [2] and the only one in plants. [20] ... anus, mouth, and throat, [136] ...
The immune system is capable of protecting the host from these pathogenic microbes without starting unnecessary and harmful immune responses to stimuli. The gastrointestinal microbiota has a direct effect on the human body's immune responses. meaning a regular microbiota is necessary for a healthy host immune system as the body is more ...
In cells infected with C. canimorsus, TLR4 did not activate the signalling pathway, so did not elicit an inflammatory response by the immune system. [17] Because this species does not elicit a strong inflammatory response, the bacteria have ample time for replication before detection by the host immune system. [12]
With higher temperature and humidity, viruses can’t survive outside a host as long. Research suggests flu viruses in high humidity can cling to water molecules and then fall out of the air. That ...