Caffeine is a natural stimulant in your body. Drinking sodas, coffee, tea or energy drinks when you have a UTI can stimulate your digestive and urinary tract -- not a good idea when your goal is to soothe instead. Caffeine-containing beverages like coffee also can have a dehydrating effect as well.
Deamination is the removal of an amine group from a molecule. Enzymes that catalyse this reaction are called deaminases. In the human body, deamination takes place primarily in the liver, however glutamate is also deaminated in the kidneys. Deamination is the process by which amino acids are broken down if there is an excess of protein intake. The amino group is removed from the amino acid and converted to ammonia. The rest of the amino acid is made up of mostly carbon and hydrogen, and is recycled or oxidized for energy.
Denaturation is a process in which proteins or nucleic acids lose the tertiary structure and secondary structure which is present in their native state, by application of some external stress or compound such as a strong acid or base, a concentrated inorganic salt, an organic solvent, or heat.