Tyrosine, for example, can convert to phenylalanine, while serine can be created from molecules that are produced during the burning of carbohydrates for energy. The non-essential amino acids include alanine, asparagine, aspartate, cysteine, glutamate, glutamine, glycine, proline, serine and tyrosine. Arginine is also non-essential unless you are in a period of growth.
Pleuritic chest pain. Pleuritic chest pain: Introduction. Any type of chest discomfort or chest pain, with or without breathing difficulty, is a serious symptom that's likely to put you first in the queue at the Emergency Room.
Is this topic for you?This topic provides information about pleurisy, which usually results in chest pain. If you have chest pain that concerns you and that your doctor does not know about, see the topic Chest Pain.What is pleurisy?Pleurisy is swelling (inflammation) of the thin layers of tissue (pleura) covering the lungs and the chest wall.