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).
Some of the causes of pleurisy include: 1  Lung infections, like tuberculosis and pneumonia. 2  Injuries to the chest. 3  Other medical conditions, such as systemic lupus erythematosus (SLE), cancer, rheumatoid arthritis, pulmonary embolism and liver diseases. 4  Reactions to certain medicines.