What is the Difference Between Prolactin and Macroprolactin

Thekey difference在催乳素和大环素之间is that prolactin is a physiologically active protein that is best known for its role in enabling females to produce milk, while macroprolactin is a physiologically inactive protein isoform of prolactin found in a small proportion of people.

Prolactin is also known as lactotropin. It is an active protein that enables females to produce milk. It is secreted from the pituitary in response to eating, mating,estrogentreatment,ovulation，或护理。另一方面，大环肽是催乳素的非生物活性蛋白同工型。因此，催乳素和大环肽是在人中发现的两个活性和非活性蛋白分子。

内容

1.Overview and Key Difference
2.What is Prolactin (Lactotropin)
3.What is Macroprolactin
4.相似性 - 催乳素和大环肽
5.Prolactin vs Macroprolactin in Tabular Form
6。摘要 - 催乳素与大环肽

What is Prolactin?

Prolactin is a protein hormone secreted by the anterior垂体. This hormone promotes lactation in response to the suckling stimulus of hungry young mammals. It can influence over 300 separate processes in various vertebrates, including humans. It is also secreted heavily in pulses in between events like eating, mating, estrogen treatment, ovulation or nursing. Prolactin plays a key role in metabolism, regulation of the immune system, and pancreatic development. This protein was first discovered in 1930 by Oscar Riddle from non-human animals. Its presence was confirmed in humans in 1970 by Henry Friesen. Moreover, prolactin is a peptide hormone encoded by thePRLgene.

Prolactin vs Macroprolactin in Tabular Form

Figure 01: Prolactin

In mammals, prolactin is found to be associated with milk production. However, in fish, it is involved in controlling water and salt balance. This protein hormone also acts as a cytokine and is an important regulator of the immune system. It has an important cell cycle-related function as a key growth, differentiating, and anti-apoptotic factor. Furthermore, as a growth factor, prolactin binds to cytokine-like receptors and influences hematopoiesis, angiogenesis, and blood clotting regulation. Several variants and isoforms of this protein are known to exist in fish and humans.

什么是大环肽？

Macroprolactin is a physiologically inactive protein isoform of prolactin found in a small proportion of people. This isoform of prolactin is non-bioactive. It is usually composed of a prolactin monomer and an IgG molecule. It has a prolonged clearance rate similar to that of immunoglobulins. Moreover, this isoform is clinically non-reactive, but it interferes with immunological assays used for the detection of prolactin. Therefore, macroprolactin is important as some laboratory assays will detect macroprolactin as prolactin. This leads to a falsely elevated prolactin result in lab tests. Furthermore, this can also lead to misdiagnosis of hyperprolactinaemia in some people, especially those with symptoms such as infertility and menstrual problems. There are certain chemicals, such as polyethylene glycol, that remove macroprolactin from the body.

What are the Similarities Between Prolactin and Macroprolactin?

催乳素和大环肽是在人中发现的两个活性和非活性蛋白分子。
They are proteins that are made up of amino acids.
Both forms are found in females as well as males.
这些形式存在于成年血清中。
Both forms can be detected through laboratory testing.