👉 Baculoids are a class of vesicles that are commonly found in the cerebrospinal fluid (CSF) of the brain. Baculoids are thought to be involved in various neurological processes, such as neurogenesis and cell differentiation. They can also play a role in the regulation of blood-brain barrier permeability and inflammation in the central nervous system. Baculoids are primarily composed of cholesterol, but they can contain other components, including proteins, nucleic acids, and