Variations of the labelling index in vitro of rat mammary gland in pregnancy and early lactation.
The labelling index of rat mammary gland during oestrus, pregnancy and early lactation was studied in vitro. The implications concerning the existence of a critical cell division are discussed.
D000818:Animals; D002454:Cell Differentiation; D002455:Cell Division; D004247:DNA / Q000096:biosynthesis; D004971:Estrus; D005260:Female; D007774:Lactation; D008321:Mammary Glands, Animal / Q000502:physiology*; D009924:Organ Culture Techniques; D011247:Pregnancy; D011270:Pregnancy, Animal; D051381:Rats; D013936:Thymidine / Q000378:metabolism
D004247:DNA; D013936:Thymidine