Which substance do neutrophils release that aids in combating bacterial infections?

Neutrophils, a type of white blood cell, play a crucial role in the body's defense against bacterial infections. Among the substances they release, lysozymes are particularly important. Lysozymes are enzymes that act to break down the cell walls of bacteria, leading to their destruction. This bacteriolytic action is an essential mechanism through which neutrophils help to eliminate pathogens and control infections.

While lymphokines are produced by lymphocytes and are involved in immune response regulation, and histamine is more closely associated with inflammatory responses, such as allergic reactions, lysozymes directly target bacteria, making them the most relevant substance released by neutrophils for combating bacterial infections. Prostaglandins also play roles in inflammation and pain but do not directly attack bacteria. Therefore, lysozymes are the key agents released by neutrophils that contribute specifically to the fight against bacterial infections.