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Hyperammonemia, or high ammonia levels, is a metabolic disturbance characterised by an excess of ammonia in the blood. Severe hyperammonemia is a dangerous condition that may lead to brain injury and death. It may be primary or secondary. Ammonia is a substance that contains nitrogen. It is a product of the catabolism of protein.
Animal and in vitro studies of ultrafine particulate material, diesel engine exhaust or ozone have all shown effects on the brain or brain cells. The mechanisms involved include the generation and release of free radicals within the brain and the induction of an inflammatory response; these 2 mechanisms seem likely to be linked. A number of ...
The size of the brain is a frequent topic of study within the fields of anatomy, biological anthropology, animal science and evolution.Measuring brain size and cranial capacity is relevant both to humans and other animals, and can be done by weight or volume via MRI scans, by skull volume, or by neuroimaging intelligence testing.
This ammonia will obviously have to be transported out of the neurons and back into the astrocytes for detoxification, as an elevated ammonia concentration has detrimental effects on a number of cellular functions and can cause a spectrum of neuropsychiatric and neurological symptoms (impaired memory, shortened attention span, sleep-wake ...
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Ammonia in salt water ecosystems will have similar effects on fish as ammonia in freshwater ecosystems. Another aquatic animal that is affected by increasing amounts of ammonia is coral. Coral are very important for diversity in oceans and increasing concentrations of ammonia in the water is harming the bacteria that are found on the coral. [27]
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