n.脲生成；尿素生成（作用）

The process of ureogenesis occurs primarily in the liver cells, where amino acids are converted into urea.
翻译：尿素生成的过程主要在肝脏细胞中发生，氨基酸在那里转化为尿素。
In ureogenesis, ammonia is detoxified by combining it with carbon dioxide to form urea, which can then be excreted safely.
翻译：在尿素生成过程中，氨通过与二氧化碳结合形成尿素来解毒，然后可以安全地排出体外。
Ureogenesis is an essential metabolic pathway for eliminating excess nitrogen from the human body.
翻译：尿素生成是人体排除多余氮元素的重要代谢途径。
A key enzyme involved in ureogenesis is carbamoyl phosphate synthetase I, which initiates the urea cycle.
翻译：参与尿素生成的一个关键酶是氨基甲酰磷酸合成酶I，它启动了尿素循环。
During fasting or starvation, ureogenesis is downregulated to conserve amino acids for gluconeogenesis.
翻译：在禁食或饥饿期间，尿素生成会下调以保存氨基酸用于糖异生作用。
In mammals, ureogenesis takes place in the mitochondria and cytosol of hepatocytes.
翻译：在哺乳动物体内，尿素生成过程发生在肝细胞的线粒体和胞质中。
Understanding the regulation of ureogenesis is crucial for managing patients with hyperammonemia.
翻译：理解尿素生成的调节机制对管理高氨血症患者至关重要。
The high protein diet increases the load on ureogenesis as the body needs to eliminate the excess nitrogen.
翻译：高蛋白饮食会增加尿素生成的负担，因为身体需要消除多余的氮元素。
Genetic defects affecting enzymes in the urea cycle can lead to impaired ureogenesis and severe health complications.
翻译：影响尿素循环中酶的遗传缺陷可能导致尿素生成受损及严重的健康并发症。
Ureogenesis plays a critical role in maintaining acid-base balance within the body by eliminating ammonia.
翻译：尿素生成通过消除氨，在维持体内酸碱平衡方面发挥着关键作用。