The effect of extirpation of the uterus on the life and function of the corpus luteum in the guinea pig

Effect of Hysterectomy at Different Stages in the Life Cycle of the Corpus Luteum in the Guinea-Pig

“…Loeb's (1923) The rate and extent of growth, and the histological appearance of the corpus luteum following hysterectomy on the 10th day after ovulation, are remarkably similar to those in the pregnant animal. The finding by Desclin & Brouha (1932) (Everett, 1956).…”

“…The effects of hysterectomy on the ovaries, mammary gland and oestrous behaviour of the unmated guinea-pig were extensively studied by Loeb more than 30 years ago (Loeb, 1923(Loeb, ,1927(Loeb, ,1932Loeb & Kountz, 1928). The principal effect was a persistence of the corpora lutea in a functional condition which resulted in the inhibition of ovulation, the cessation of the dioestrous cycle and the retention of the vaginal epithelium in a secretory state for periods equivalent to or longer than that of pregnancy.…”

Efeitos de baixas doses de cloprostenol via intramuscular ou submucosavulvar na indução do estro e taxas de prenhez em vacas Nelore

“…A relação do útero com o ovário no controle da regressão do corpo lúteo foi primeiramente descrita por Loeb (1923Loeb ( , 1927, sendo que a secreção em pulsos da prostaglandina pelo útero coincidiu com a queda da progesterona, durante a luteólise (KINDAHL et al, 1984).…”

Luteal function and embryonic survival in swine

“…Loeb (1923) observed an increase in the life span of corpora lutea in the guinea pig following hysterectomy during the luteal phase of the estrous cycle. An extension of this work was done by Rowlands and Short (1959) who observed appreciable amounts of progesterone in the persisting corpora lutea.…”