Results 161 to 170 of about 25,496 (212)
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Journal of Theoretical Biology, 1983
A theoretical fluid dynamical model of ovum transport in the oviduct incorporating transport mechanisms due to ciliary activity, muscular activity and an applied pressure drop across the oviduct is developed. Theory suggests that the cilia provide the steady component of ovum transport whereas muscular activity results in highly oscillatory motion.
J R, Blake, P G, Vann, H, Winet
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A theoretical fluid dynamical model of ovum transport in the oviduct incorporating transport mechanisms due to ciliary activity, muscular activity and an applied pressure drop across the oviduct is developed. Theory suggests that the cilia provide the steady component of ovum transport whereas muscular activity results in highly oscillatory motion.
J R, Blake, P G, Vann, H, Winet
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American Journal of Obstetrics and Gynecology, 1958
Abstract Living human follicular and tubal ova have been studied by means of phase contrast microscopy, with special reference to the cytology and physiology of the corona radiata cells, polar body formation, cytoplasmic and nuclear constituents, spermatozoan behavior about and penetration of the ovum, and early cleavage.
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Abstract Living human follicular and tubal ova have been studied by means of phase contrast microscopy, with special reference to the cytology and physiology of the corona radiata cells, polar body formation, cytoplasmic and nuclear constituents, spermatozoan behavior about and penetration of the ovum, and early cleavage.
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Fertility and Sterility, 1980
Two cases of ovum retention occurring in postovulatory follicles are described. The ova were recovered at laparoscopy by aspiration of decompressed ovulatory follicles, one during a natural cycle and the other following a programmed clomiphene/human chorionic gonadotropin cycle.
I, Craft +3 more
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Two cases of ovum retention occurring in postovulatory follicles are described. The ova were recovered at laparoscopy by aspiration of decompressed ovulatory follicles, one during a natural cycle and the other following a programmed clomiphene/human chorionic gonadotropin cycle.
I, Craft +3 more
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International Journal of Gynecology & Obstetrics, 1980
ABSTRACTAn early embryo at stage 5 of development is presented. The specimen's estimated age of about ten days makes it one of the youngest human products of conception on record. As such, it provides information on the earliest phases of human development.
A, Madrazo, T H, Woo
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ABSTRACTAn early embryo at stage 5 of development is presented. The specimen's estimated age of about ten days makes it one of the youngest human products of conception on record. As such, it provides information on the earliest phases of human development.
A, Madrazo, T H, Woo
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Role of the Ovum in Follicular Luteinization
Endocrinology, 1970To study the effect of the oocyte on the functional activity of granulosa cells, clear mature follicles of estrous rabbits were either punctured or ovectomized. Three days after treatment, granulosa cells of punctured follicles failed to show histological signs of luteinization. Six days after puncturing both oocytes and granulosa cells were degenerate
M A, el-Fouly +3 more
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Synchronization in Ovum Donation
1990The establishment of the first pregnancy after embryo donation was reported in a patient with functional ovaries.1 In 1984 the first birth after embryo donation was reported in a patient with absent ovaries.2 Synchrony between the embryo stage and endometrial maturity is mandatory. Several possibilities exist to synchronize i.e. cryopreservation of the
Devroey, Paul +5 more
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JAMA, 1961
To the Editor:— The editorial on "Nidation of the Ovum" ( JAMA , Nov. 5, 1960) is welcomed as a recognition of growing interest in the subject, but it is unfortunately misleading in several respects. The principal reason for error is the great variation among species and the failure to specify the species to which a number of statements refer.
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To the Editor:— The editorial on "Nidation of the Ovum" ( JAMA , Nov. 5, 1960) is welcomed as a recognition of growing interest in the subject, but it is unfortunately misleading in several respects. The principal reason for error is the great variation among species and the failure to specify the species to which a number of statements refer.
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