While a healthy, intact BBB tightly restricts the movement of these substances into the CNS compartment, these, and other myeloid-responsive factors, such as cytokines, are not fully restricted from entering the CNS, which may compromise BBB integrity through stimulation of perivascular Ms and microglia
Factors like injection speed, needle angle, and skin sensitivity all influence how intensely you experience this sensation
Cleaning your eyelids removes debris that can build up over time causing obstruction and loss of your meibomian glands, known as meibomian gland dysfunction (MGD)
Glutathione, as reduced GSH, acts as a sentinel, where it can directly neutralise free radicals that are capable of damaging cells