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.
Viral infection is probably the most common cause of pleurisy. Other causes include the following: Lung infections, such as pneumonia and tuberculosis; Diseases such as systemic lupus erythematosus (lupus), rheumatoid arthritis, cancer, liver diseases and pulmonary embolism; Chest injuries; Drug reactions; Pleurisy and pleural effusion are generally only as serious as the underlying disease causing it. If you have any of these conditions, you may already be undergoing treatment for the underlying disease; if not, seek medical attention immediately. A pleural effusion can occur without pleurisy. Kidney disease, heart failure and liver disease can cause pleural effusion without inflammation or pain. What are the symptoms of pleurisy? Symptoms of pleurisy include the following:
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.Other conditions may also cause pleurisy.n 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.