Prolactin

Prolactin is a peptide hormone primarily produced by the pituitary gland. Its principal function is to stimulate lactation, the production of breast milk, in mammals, especially after childbirth. However, prolactin plays a broader role, influencing the immune system, metabolism, and reproductive functions in both males and females. Its release is tightly regulated by various factors, including dopamine, which typically inhibits its secretion, and thyrotropin-releasing hormone (TRH), which stimulates its production. Elevated prolactin levels, known as hyperprolactinemia, can disrupt menstrual cycles in women and cause infertility or reduced libido in both sexes, and can also influence body processes. Prolactin's impact stems from its ability to bind to prolactin receptors in various tissues.

Prolactin meaning with examples

• Following the birth of her baby, the mother's prolactin levels surged, triggering the onset of milk production. This surge is a normal physiological response to the hormonal shifts during and after pregnancy. prolactin facilitated the biological process needed. Monitoring prolactin can help diagnose lactation disorders, such as insufficient milk supply or excessive milk production.
• In some individuals with pituitary tumors, excessive prolactin secretion (hyperprolactinemia) can lead to amenorrhea (cessation of menstruation) and infertility. This condition necessitates medical intervention to lower prolactin levels. prolactin is directly tied to the reproductive systems in women, affecting both the process and its duration.
• A woman with irregular menstrual cycles underwent blood tests to measure her prolactin levels. The doctor was concerned that elevated prolactin was the culprit. The test results helped determine the cause of the issue and to establish an effective course of treatment and intervention.
• Researchers are investigating the role of prolactin in immune function, suggesting that it may influence the development of autoimmune diseases. The research is using the prolactin levels of its test subjects to understand how it can affect the diseases. This broad study provides crucial insight into its far reaching effects in the body.