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Relevant bibliographies by topics / Oocyte. Ovum

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Academic literature on the topic 'Oocyte. Ovum'

Author: Grafiati

Published: 4 June 2021

Last updated: 2 February 2022

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Journal articles on the topic "Oocyte. Ovum"

1

Techakumphu, M., A. Promdireg, N. Phutikanit, et al. "339 ULTRASOUND GUIDED OVUM PICK UP (OPU) IN PREPUBERTAL SWAMP BUFFALO USING THREE DIFFERENT VACUUM PRESSURES." Reproduction, Fertility and Development 17, no. 2 (2005): 320. http://dx.doi.org/10.1071/rdv17n2ab339.

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Our group successfully developed ovum pick-up in prepubertal swamp buffalo, however the quality of the oocytes that were collected was poor especially those without a cumulus mass (Techakumphu et al. 2003 Theriogenology 61, 1705–1711). The vacuum pressure used for oocyte collection was one of the factors influencing oocyte quality (Bols et al. 1997 Theriogenology 47, 1221–1236). The objective of this study was to compare the effect of three vacuum pressures on both the recovery rate and oocyte quality in prepubertal swamp buffaloes. Oocyte recovery and oocyte quality were using different group

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2

Silva, Bárbara Letícia Marchi da, Paulo Roberto Adona, Samuel Guemra, Paulo Sergio Monzani, and Moysés dos Santos Miranda. "Ovum Pick Up: Cows Treated With Single Doses of Follicle Stimulating Hormone." Journal of Agricultural Science 11, no. 10 (2019): 231. http://dx.doi.org/10.5539/jas.v11n10p231.

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Cows treated with single doses of follicle stimulating hormone (FSH) and ovum pick up (OPU) after 24 hours were evaluated for oocyte recovery, in vitro production of embryos (IVPE), and transferred embryos. To begin evaluations, the ovarian follicles larger than three millimeters in diameters were removed from all cows used in the study. Two days after OPU, 200 milligrams of FSH was given in a single dose in 6 cows (treated). Twenty-four hours after application of FSH, the cows underwent a new OPU session for oocyte retrieval. These procedures were repeated three consecutive times without inte

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3

Hunter, M. "Oocyte maturation and ovum quality in pigs." Reviews of Reproduction 5, no. 2 (2000): 122–30. http://dx.doi.org/10.1530/revreprod/5.2.122.

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Hunter, M. "Oocyte maturation and ovum quality in pigs." Reviews of Reproduction 5, no. 2 (2000): 122–30. http://dx.doi.org/10.1530/ror.0.0050122.

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5

Foster, B. A., F. A. Diaz, E. J. Gutierrez, and K. R. Bondioli. "158 The Effect of Follicular Wave Phase at Time of Ovum Pick-Up on Bovine Oocyte Cytoplasmic Maturation and Developmental Competence." Reproduction, Fertility and Development 30, no. 1 (2018): 218. http://dx.doi.org/10.1071/rdv30n1ab158.

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During oocyte collection, follicular wave phase is unknown, although differences in follicle environment may have dramatic effects on oocyte quality. This project was performed to determine whether oocyte collection during different phases of the follicular wave affects oocyte competence. Oocytes were collected via transvaginal ultrasound guided oocyte aspiration from 18 cows, at 4, 8, and 12 days following dominant follicle removal, representing follicle wave emergence, peak, and atresia, respectively (160, 314, and 273 oocytes, respectively). Once recovered, oocytes were graded and assigned

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6

Imai, K., M. Tagawa, S. Matoba, M. Narita, and N. Saito. "246 FOLLICULAR DEVELOPMENT AND OOCYTE QUALITY AFTER OVUM PICKUP IN DONOR COWS." Reproduction, Fertility and Development 17, no. 2 (2005): 273. http://dx.doi.org/10.1071/rdv17n2ab246.

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The present study was designed to assess the renewal of follicular development and oocyte quality after ovum pickup (OPU) in Holstein dry cows. Cows were kept under the same feeding and environmental conditions. In Experiment 1, follicle aspiration (more than 2 mm) by OPU using a 7.5 MHz linear transducer with needle (cova needle, Misawa Medical, Tokyo, Japan) connected to an ultrasound scanner (SSD-1200, ALOKA, Tokyo, Japan) was performed in four cows. After OPU ovaries were observed from Day 4 (Day 0 = the day of OPU) to Day 11 to assess the number of follicles that developed. In Experiment

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7

King, CM, and GT Kovacs. "Oocyte Donation: Review of Results." Reproduction, Fertility and Development 4, no. 6 (1992): 719. http://dx.doi.org/10.1071/rd9920719.

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This paper reviews the results of oocyte donation programmes around the world. Data on 1608 cycles of ovum donation were received from 11 clinics and medical centres. Significance among and between groups of donors and recipients was also assessed.

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8

Santos, R. M., M. Oliveira, C. G. B. Demetrio, J. H. Hasler, J. C. Fonseca, and D. G. B. Demetrio. "146 Single injection of follicle-stimulating hormone before ovum pickup in lactating Holstein donors: Oocyte recovery and embryo production." Reproduction, Fertility and Development 33, no. 2 (2021): 181. http://dx.doi.org/10.1071/rdv33n2ab146.

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Lactating donor cows frequently have decreased oocyte quality, lower fertilization rates, and impaired early embryonic development due to their lactational metabolic challenges. Synchronization and stimulation of follicular growth before ovum pickup (OPU) has been used to improve oocyte quality and consequently, embryo production. The objective of this study was to evaluate the effects of a single injection of FSH before OPU on oocyte recovery and embryo production in lactating Holstein donors. During June and July 2020, 22 lactating Holstein donors (open, 40 to 90 DIM, producing &gt;90 lb

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Santos, R. M., M. Oliveira, C. G. B. Demetrio, J. H. Hasler, J. C. Fonseca, and D. G. B. Demetrio. "146 Single injection of follicle-stimulating hormone before ovum pickup in lactating Holstein donors: Oocyte recovery and embryo production." Reproduction, Fertility and Development 33, no. 2 (2021): 181. http://dx.doi.org/10.1071/rdv33n2ab146.

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Lactating donor cows frequently have decreased oocyte quality, lower fertilization rates, and impaired early embryonic development due to their lactational metabolic challenges. Synchronization and stimulation of follicular growth before ovum pickup (OPU) has been used to improve oocyte quality and consequently, embryo production. The objective of this study was to evaluate the effects of a single injection of FSH before OPU on oocyte recovery and embryo production in lactating Holstein donors. During June and July 2020, 22 lactating Holstein donors (open, 40 to 90 DIM, producing &gt;90 lb

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10

Barros, F. F. P. C., P. P. M. Teixeira, R. A. R. Uscategui, et al. "Laparoscopic ovum pick-up in spotted paca ( Cuniculus pacas )." Arquivo Brasileiro de Medicina Veterinária e Zootecnia 68, no. 4 (2016): 858–64. http://dx.doi.org/10.1590/1678-4162-8756.

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ABSTRACT The aim of this work is study the laparoscopic ovum pick-up (LapOPU) technique in spotted paca, describing surgery details, complications and oocyte recovery rate. Nine healthy adult non-pregnant captive females were used, in a total of 39 procedures. When the surgical plane of anaesthesia was achieved, the females were positioned at 20º Trendelenburg. Three 6mm trocars were placed on right and left inguinal and hypogastric regions. Abdomen was inflated with CO2 and the intra-abdominal pressure was stablished in 10mmHg. Follicular punctures were performed moving the ovaries with atrau

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Dissertations / Theses on the topic "Oocyte. Ovum"

1

Pfender, Sybille Helen. "Studies of asymmetric oocyte division and new genes controlling oocyte maturation." Thesis, University of Cambridge, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.648232.

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2

Alton, Michelle. "Control of the oocyte population in mouse ovaries." Thesis, McGill University, 2005. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=81585.

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Oocyte loss and meiotic prophase progression was studied in XY sex-reversed and XO female mice, two mouse models that lack pairing between their sex chromosomes. An arrest at the pachytene stage of meiosis was not observed, nor was a significant loss of oocytes at this stage compared to normal XX control mice. Thus, it was concluded that a pairing checkpoint either does not exist in oocytes or is not as stringent as the one observed in males.<br>The effect of mutating the pro-apoptotic Bax molecule was studied at three distinct ages corresponding to the time when female germ cells are p

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Raposo, Alexandre Augusto da Silva Figueiredo. "Nuclear migration and the regulation of microtubules in the Drosophila oocyte." Thesis, University of Cambridge, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.611219.

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Ying, Ying. "Male accessory sex glands and oocyte activation at fertilization in the golden hamster /." Hong Kong : University of Hong Kong, 1998. http://sunzi.lib.hku.hk/hkuto/record.jsp?B20792712.

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Nieuwburg, Ross Willem. "Analysis of the role of dynactin in the polarisation of the cytoskeleton of the Drosophila oocyte." Thesis, University of Cambridge, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.610258.

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Ying, Ying, and 應嬴. "Male accessory sex glands and oocyte activation at fertilization in the golden hamster." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1998. http://hub.hku.hk/bib/B31239663.

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Fazio, Cynthia Marie. "The influence of meiotic onset on and the role of apoptosis in oocyte death during the meiotic prophase /." Thesis, McGill University, 2005. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=97951.

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Loss of germ cells that entered meiosis at different developmental stages was compared. Mice were injected with BrdU at 13.3, 14.3 or 15.3 days post coitum (dpc) and sacrificed either 3 days after BrdU injection or 4 days post partum (dpp). BrdU-labeled germ cells were detected in ovarian sections through double immunofluorescent staining for BrdU and either GCNA-1 or MVH as a germ cell marker. The results show that the loss of germ cells that entered meiosis at 13.3 or 15.3 dpc was excessive compared to the loss of total germ cells. Such preferential elimination was not found for germ cells t

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8

Chen, Ying. "The role of steroids in the regulation of oocyte cyst breakdown and primordial follicle assembly in the neonatal mouse ovary." Related electronic resource: Current Research at SU : database of SU dissertations, recent titles available, full text:, 2008. http://wwwlib.umi.com/cr/syr/main.

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9

Wang, Lei. "Cloning and characterization of a novel oocyte-specific gene Fbos encoding an F-Box protein in rainbow trout (Oncorhynchus mykiss)." Morgantown, W. Va. : [West Virginia University Libraries], 2009. http://hdl.handle.net/10450/10786.

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Thesis (M.S.)--West Virginia University, 2009.<br>Title from document title page. Document formatted into pages; contains vii, 51 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 46-51).

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10

Cebrián, Serrano Alberto. "Factors affecting the in vitro embryo production in cattle associated to ovum pick up sistem." Doctoral thesis, Universitat Politècnica de València, 2013. http://hdl.handle.net/10251/27646.

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La producción de embriones mediante la recuperación de ovocitos inmaduros por ovum pick up (OPU), y su posterior maduración, fecundación y cultivo en el laboratorio in vitro, presenta numerosos beneficios para optimizar el potencial reproductivo, tanto de hembras como de machos. Además, frente a la superovulación convencional mediante tratamiento hormonal y la recogida de embriones in vivo, la producción in vitro de embriones (PIVE) con ovocitos de OPU ofrece considerables ventajas. Sin embargo, actualmente la PIVE continua siendo ineficiente e incapaz de producir embriones de calidad similar

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Books on the topic "Oocyte. Ovum"

1

Patrizia, Ciotti, and Venturoli Stefano, eds. Handbook of human oocyte cryopreservation. Cambridge University Press, 2013.

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2

Homer, Hayden A. Mammalian oocyte regulation: Methods and protocols. Humana Press, 2013.

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3

Atlas of the human oocyte and early conceptus. Williams & Wilkins, 1986.

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4

Borini, Andrea, and Giovanni Coticchio. Preservation of human oocytes. Informa Healthcare, 2009.

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5

1946-, Elder Kay, and Ebner Thomas, eds. Atlas of oocytes, zygotes and embryos in reproductive medicine. Cambridge University Press, 2012.

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6

Alan, Trounson, and Wood Carl, eds. Atlas of fine structure of human sperm penetration, eggs, and embryos cultured in vitro. Praeger, 1985.

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Veeck, Lucinda L. Atlas of the humanoocyte and early conceptus. Williams & Wilkins, 1986.

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(Editor), Alan O. Trounson, and Roger G. Gosden (Editor), eds. Biology and Pathology of the Oocyte: Its Role in Fertility and Reproductive Medicine. Cambridge University Press, 2003.

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9

Alan, Trounson, and Gosden R. G, eds. Biology and pathology of the oocyte: Its role in fertility and reproductive medicine. Cambridge University Press, 2003.

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10

Gosden, Roger, Alan Trounson, and Ursula Eichenlaub-Ritter. Biology and Pathology of the Oocyte: Role in Fertility, Medicine and Nuclear Reprograming. Cambridge University Press, 2013.

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Book chapters on the topic "Oocyte. Ovum"

1

Bols, Peter E. J., and Tom A. E. Stout. "Transvaginal Ultrasound-Guided Oocyte Retrieval (OPU: Ovum Pick-Up) in Cows and Mares." In Animal Biotechnology 1. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-92327-7_10.

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Carr, Bruce R., and Victor E. Beshay. "Fertilization, Implantation, and Endocrinology of Pregnancy." In Textbook of Endocrine Physiology. Oxford University Press, 2011. http://dx.doi.org/10.1093/oso/9780199744121.003.0013.

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The complex and coordinated set of events leading to sperm and egg maturation and transport in the female genital tract that culminates in fertilization is one of the most remarkable phenomena in nature. This set of events is followed by the equally important unique processes of implantation, fetal maturation, and parturition. The hormonal changes that regulate these events are dependent on the close interaction of the fetal-placental-maternal unit. Just before ovulation, the egg, which has been arrested in the diplotene stage, completes the first meiotic division and forms the first polar body. The second meiotic division starts at the time of ovulation but ends only after fertilization by a sperm. The process of egg maturation is regulated through a closely interrelated set of hormonal events, most notably involving follicle-stimulating hormone (FSH), luteinizing hormone (LH), and estrogen. At the time of ovulation the fimbria of the oviduct are closely applied to the surface of the ovary. The extruded oocyte and adherent granulosa cells, known as the cumulus oophorus, is collected by the ciliated fimbrial end of the fallopian tube. The transport of the egg into the end of the fallopian tube occurs within minutes and is regulated primarily by ciliary action. The cumulus cells are able to communicate with one another via a network of intercellular bridges through the zona pellucida to the perivitelline space. The cumulus cells have also been reported to play a role in nutrition and maintenance of the ovum. There are three different stages of passage of the ovum through the fallopian tube. The first stage includes the transfer of the ovum from the fimbriated end of the fallopian tube until the egg reaches and is retained at the ampullary-isthmic junction. The ampullary-isthmic junction is a functional block but is not a clearly defined anatomical structure. The ovum remains at this junction for 1–2 days, during which time fertilization occurs.

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