Prolactin (PRL) or luteotropic hormone (LTH) is a peptide hormone with a molecular weight of 24,000 daltons and a structure that is similar to that of growth hormone and placental lactogen. It is primarily associated with pregnancy and lactation and is expressed in the anterior pituitary, uterus and placenta. During pregnancy, high circulating concentrations of estrogen promote prolactin production. The resulting high levels of prolactin secretion cause further maturation of the mammary glands, preparing them for lactation. 

Species: rat

Sample Type:   serum, plasma

Sample Size: 50 uL

Standard Curve Range:  0.39 - 50 ng/mL

Sensitivity:  0.2 ng/mL

Assay Length:   overnight incubation