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Citrullinemia is an autosomal recessive urea cycle disorder that causes ammonia and other toxic substances to accumulate in the blood. [1]Two forms of citrullinemia have been described, both having different signs and symptoms, and are caused by mutations in different genes.
The disease can affect humans as well as animals such as dogs. The condition is treatable and need not shorten the animal's life span or interfere with the quality of life. [ 1 ] If left untreated, the condition can lead to cataracts, increasing weakness in the legs (neuropathy), malnutrition , ketoacidosis , dehydration , and death. [ 2 ]
Treatment of an infected dog is difficult, involving an attempt to poison the healthy worm with arsenic compounds without killing the weakened dog, and may not succeed. Prevention is recommended via the use of heartworm prophylactics , which contain a compound that kills the larvae immediately upon infection without harming the dog.
Nitrogen is a fundamental chemical component of amino acids, the molecular building blocks of protein. As such, nitrogen balance may be used as an index of protein metabolism. [1] When more nitrogen is gained than lost by an individual, they are considered to have a positive nitrogen balance and be in a state of overall protein anabolism.
Ornithine transcarbamylase deficiency also known as OTC deficiency is the most common urea cycle disorder in humans. Ornithine transcarbamylase , the defective enzyme in this disorder, is the final enzyme in the proximal portion of the urea cycle , responsible for converting carbamoyl phosphate and ornithine into citrulline .
By Medieval times, dogs were more seen as pets rather than just companions and workers which affected their quality of the diet to include "Besides being fed bran bread, the dogs would also get some of the meat from the hunt. If a dog was sick, he would get better food, such as goat's milk, bean broth, chopped meat, or buttered eggs."
Human nutrition deals with the provision of essential nutrients in food that are necessary to support human life and good health. [1] Poor nutrition is a chronic problem often linked to poverty, food security , or a poor understanding of nutritional requirements. [ 2 ]
A large fraction of the chemical elements that occur naturally on the Earth's surface are essential to the structure and metabolism of living things. Four of these elements (hydrogen, carbon, nitrogen, and oxygen) are essential to every living thing and collectively make up 99% of the mass of protoplasm. [1]