- Created on the 18 February, 2017.
Human prolactin (PRL) which can be also called lactogenic hormone, it is a polypeptide hormone that has a molecular weight of 20,000 Da and can be found secreted from the anterior pituitary gland in both men and women. It plays vital roles in the production and secretion of milk, the development of the mammary gland and in controlling the female and male gonadal functions. The release and synthesis of prolactin is usually under the influence of neuro-endocrinal control which can be found to occur primarily through prolactin releasing factor (PRF) and prolactin Inhibiting factor (PIF).
During pregnancy, the concentration of prolactin can increase progressively reaching levels that can be between 10-20 times higher than normal values, it can then decline to non-pregnant levels by 3-4 weeks post- partum. However, breast feeding mothers can maintain the high levels of prolactin and it can take several months for the serum concentrations to return back to similar levels as non-pregnant levels. The primary functions of prolactin is to initiate breast development and to maintain lactation, it can also suppress gonadal function. Women have been found to generally have slightly higher basal prolactin levels when compared to men, this is due to an apparent estrogen- related rise at puberty and a corresponding decrease at menopause.
The plasma concentration of prolactin is known to increases in a number of physiological situations for example during stress, pregnancy and lactation. The physiological levels can also be found to fluctuate according to nycthemeral rhythm, where at night a significant rise can be observed. Ovulatory suppressants and drugs with anti-dopamine activity (psychotropic agents) can also increase the secretion of prolactin. The measurement of prolactin concentrations is useful in aiding the diagnosis of hypothalamic- pituitary disorders. High prolactin levels have been linked with galactorrhea and amenorrhea, micro-adenomas (small pituitary tumors) which can cause hyperprolactinemia, which is sometimes linked with male impotence.
The prolactin ELISA assay provides a sensitive, rapid and a reliable assay. It also displays no cross-reactivity with LH, hCG, FSH, hGH and TSH.
Prolactin ELISA kit is a reliable quantitative procedure for measuring prolactin (PRL, lactogenic hormone) in human serum samples. This assay has a minimum sensitivity detection limit of 0.35 ng/ml.
The minimum sensitivity detection limit of prolactin (PRL, lactogenic hormone) using this human prolactin ELISA kit was approximately 0.35 ng/ml. The dynamic assay range for this kit is 5.0 – 200.0 ng/ml.
- New insights in prolactin: pathological implications. Nat Rev Endocrinol. (2015) 11 (5): 265-75. Review. Bernard V., et al.
- New concepts in prolactin biology. J Endocrinol. (2010) 206 (1): 1-11. Review. Bernichtein S., et al.
- Prolactin–not only lactotrophin. A “new” view of the “old” hormone. J Physiol Pharmacol. (2012) 63 (5): 435-43. Review. Ignacak A., et al.
- Prolactin and human tumourogenesis. J Neuroendocrinol. (2010) 22 (7): 771-7. Review. Fernandez I., et al.
- The role of prolactin in andrology: what is new? Rev Endocr Metab Disord. (2015) 16 (3): 233-48. Review. Rastrelli G., et al.
- Full Name: Prolactin (PRL) ELISA Kit
- Reactivity: Human
- Sample Type: Serum
- Sensitivity: 0.35 ng/ml
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