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.
Common causes of pleurisy include trauma, postcardiac injury, infection (i.e., viral, bacterial, or parasitic), respiratory illness, caustic exposure (i.e., drug-induced), autoimmune disease, and malignancy (TABLE 1).
The pleural cavity is the area between the lungs and inner chest wall. Pleurisy is a common complication of several different medical conditions, the most pervasive being a viral infection of the lower respiratory system.Other causes of pleurisy include: 1  Bacterial infections such as pneumonia and tuberculosis.2  A chest wound that punctured the pleural cavity. 3  A pleural tumor. 4  Autoimmune disorders like lupus and rheumatoid arthritis. 5  Sickle cell anemia. 6  Pancreatitis. 7  Pulmonary embolism.ther causes of pleurisy include: 1  Bacterial infections such as pneumonia and tuberculosis. 2  A chest wound that punctured the pleural cavity. 3  A pleural tumor. 4  Autoimmune disorders like lupus and rheumatoid arthritis.