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.
Pleurisy, an inflammation of the lining around the lungs, is associated with sharp chest pain upon breathing in. Cough, chest tenderness, and shortness of breath are other symptoms associated with pleurisy. Pleurisy pain can be managed with pain medication and by external splinting of the chest wall.