the present data substantiate that high mr forms , slightly heavier than authentic pituitary lh ( mr 23,000 daltons ) and therefore not identical to the hypothalamic decapeptide lh-rh , represent ovine pineal factors which can increase the concentration of lh in the medium of cultured anterior pituitaries , but does not influence the secretion of prolactin in vitro .
C0020663
hypothalamic
C0023610
lh-rh