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  • Title: Effect of unilateral ovariectomy and subsequent ovum implantation in mice.
    Author: Pakrasi PL, Kumar P, Kumar A.
    Journal: Indian J Exp Biol; 1992 Sep; 30(9):782-4. PubMed ID: 1478713.
    Abstract:
    Unilateral ovariectomy (ULO) was done on any stage of the cycle and the animals were mated within day 1 to day 21 to observe the acute and long term effect of ULO on ovum implantation. Implantation reduced in proportion to single ovary if the animals were mated within 24 hr of ULO. Increase in ovarian weight along with an increase in implantation number continued in mated mice and reached at peak on day 19-21 of ULO (sacrificed after 6 days i.e., 25-27 days of ULO). After ULO the remaining ovary compensated within day 5-6 of ULO even during pregnancy. Ovarian histology showed stimulation of small antral follicles in mice mated on day 3 of ULO (sacrificed after 6 days i.e., day 9 of ULO) along with a decrease of large antral follicles and pre-antral follicles. Preantral follicles were at peak on day 12-14. Large antral follicles attained a peak on day 4 which slowly decreased. The occurrence of implantation in such ULO conditions are discussed.
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