1.4 Chemical Determination. Proteins are complex, organic compounds composed of many amino acids linked together through peptide bonds and cross-linked between chains by sulfhydryl bonds, hydrogen bonds and van der Waals forces.
What causes pleurisy? In young, healthy people, an infection of the lower respiratory system by a virus or bacteria may cause pleurisy. Pleurisy usually lasts a few days to 2 weeks. In very rare cases, the virus or bacteria may spread and cause pleurisy in others. Other causes of pleurisy include air leaking into the pleural cavity from a hole in a lung (pneumothorax), injury to the chest (such as a broken rib), tuberculosis or other infections, or a tumor in the pleura.
To relieve pleurisy symptoms, your doctor may recommend: 1  Acetaminophen or anti-inflammatory medicines (such as ibuprofen) to control pain. 2  Codeine-based cough syrups to control coughing. 3  Lying on your painful side.  Breathing deeply and coughing to clear mucus as the pain 1  eases. Getting plenty of rest.