|
| |
| | eCureMe.com - Fertility Oocyte Donation |
 | | The counseling session enables the couple to explore their motivations to become a recipient, feelings they may have about receiving oocytes from another woman, and their attitudes and expectations regarding children conceived as a result of donated oocytes. | | | This counseling session also helps the donor explore issues such as her motivation to be an oocyte donor and whether she understands of her role in the process. | | | If a donor is determined to be a good candidate, then she is counseled regarding the details of the medical procedure she will undergo, with a complete explanation of the risks and potential complications of taking fertility medications and undergoing the surgical procedure to harvest oocytes. |
|
http://ecureme.healthology.com/focus_article.asp?f=fertility&c=fert_oocyte
|
|
| |
| | Ethics & Medics -- a publication of the National Catholic Bioethics Center -- www.ncbcenter.org |
| | The ethical ramifications of these experiments will be analyzed in the next issue of Ethics and Medics. | | | This procedure effectively brings a third parent (the owner of the donor oocyte material) into the process by way of the mitochondrial DNA transferred into the recipient oocyte. | | | See John Zhang et al., "Nuclear and Cytoplasmic Transfer in Mouse and Human Oocytes," in A Color Atlas for Human Assisted Reproduction: Laboratory and Clinical Insights, eds. |
|
http://www.ethicsandmedics.com/0407-1.html
|
|
| |
| | Human Oocyte and Embryo Cryopreservation |
| | One other baby has arisen from a clinical circumstance that is not completely unfamiliar to IVF clinics: oocytes had been collected but no sperm were retrievable for insemination. | | | With respect to cryostorage of donated oocytes there have been several reports that have shown some success with this approach (Polak de Fried et al, 1998; Tucker et al, 1998a; Yang et al, 1998 & personal communication). | | | Protocols successfully applied for bovine oocytes and embryos have been used initially with human oocytes (Kuleshova et al., 1999), and initial trials been undertaken with human blastocysts (Lane et al., 1999). |
|
http://www.ivf.com/boston.html
|
|
| |
| | On the discrepancy between whole-cell and membrane patch mechanosensitivity in Xenopus oocytes -- Zhang and Hamill 523 ... |
| | Despite our expectations from patch-clamp studies, we were unable to mechanically activate a consistent increase in the resting conductance of oocytes. | | | However, our capacitance measurements indicate no increase in membrane area, even when oocytes were inflated to nearly twice their original diameter. | | | In particular, in Xenopus oocytes the high mechano-sensitivity of single MG cation channels is best preserved by gentle sealing protocols and minimal mechanical stimulation of the patch, whereas forceful sealing or mechanical trauma makes the patch hypo-mechanosensitive (Hamill and McBride, 1992, 1997). |
|
http://jp.physoc.org/cgi/content/full/523/1/101
|
|
| |
| | Developmental Biology Page |
| | A number of physiological and morphological changes take place within the stimulated oocyte. | | | In response to progesterone stimulation Xenopus laevis oocytes undergo meiotic maturation. | | | The Nurse Cells provide the oocyte with many molecules and organelles. |
|
http://www.luc.edu/depts/biology/dev/devm.htm
|
|
| |
| | gamete on Encyclopedia.com |
| | (gamete intrafallopian transferand transvaginal oocyte retrieval) (includes related article on howtransvaginal retrieval works) | | | Mouse Embryonic Germ Cells, Male Gametes Created in the Lab; Findings Have Implications for Human Stem-Cell Work, Research on Infertility, Embryonic Development, Cancer. | | | Encyclopedia.com is a service of HighBeam Research, LLC. |
|
http://www.encyclopedia.com/html/X/X-gamete.asp
|
|
| |
| | Fertilization: the "Gray Crescent" in Sagittal Section |
| | Use the radio buttons at the right to toggle between the unfertilized oocyte's internal structure and that of the zygote following subcortical rotation. | | | The deep cytoplasm (yellow and blue) rotates with respect to the overlying cortex to produce a 30 degree relative rotation. |
|
http://worms.zoology.wisc.edu/frogs/fert/subcortrot/fertsag.html
|
|
| |
| | VE Glossary |
| | Reaction of the oocyte's cortex which preventing penetration by more than one spermatozoon | | | System that helps filter out harmful substances in body; also produces white blood cells, or lymphocytes | | | Head region of embryo (also see cranial and cephalic) |
|
http://www.encinta.com/baby/gloss.html
|
|
| |
| | Hum. Reprod. -- Sign In Page |
| | A macaque model for studying mechanisms controlling oocyte development and maturation... | | | Articles by Schramm, R.D. Articles by Bavister, B.D. To view this item, select one of the options below: |
|
http://humrep.oupjournals.org/cgi/content/full/14/10/2544
|
|
| |
| | Scientific Publications Authors T to Z - National Zoo FONZ |
| | Wood, T.C. and D.E. Wildt (1997) Effect of quality of the cumulus oocyte complex in the domestic cat on the ability of oocytes to successfully mature, fertilize and develop into blastocysts in vitro. |
|
http://nationalzoo.si.edu/Publications/ScientificPublications/TardifZwicker.cfm
|
|
| |
| | Infertility Central - Test Tube Babies - IVF and GIFT |
| | While we still cannot freeze unfertilized human oocytes efficiently, a new technique called vitrification (which uses ultra-rapid cooling together with an increased concentration of cryoprotectants) may allow us to offer this option to our patients, in the future, allowing the facility of egg storage and egg banking. | | | If you don't get pregnant after your IVF attempt, you are likely to be very disappointed and disheartened. | | | Mature oocyte cumulus complex, as seen under a stereozoom microscope in the IVF lab, during egg retrieval. |
|
http://infertility.adoption.com/chapter25.php
|
|
| |
| | The Ovarian Follicle 2 |
| | Before moving on, go to anatomy of the mature secondary follicle. | | | The corpus luteum is the enlarged remnant of the secondary (Graafian) follicle following ovulation (the release of the oocyte). | | | On the left, two primary follicles are seen. |
|
http://www.uoguelph.ca/zoology/devobio/210labs/ovary4.html
|
|
| |
| | Chaste Tree Berry / Vitex agnus castus : Natural Health Care Products |
| | The problem that is known as luteal phase defect occurs when progesterone secretion is abnormally low. | | | The corpus luteum is a bit of glandular tissue in the ovary that forms monthly at the site of a ruptured graafian follicle. | | | This is a mature follicle that contains an oocyte (the first meiotic division has occurred and fertilization will complete the second meiotic division to create an ovum). |
|
http://www.health-pages.com/ct/
|
|
| |
| | Merriam-Webster Online |
| | For More Information on "oocyte" go to Britannica.com | | | Get the Top 10 Search Results for "oocyte" |
|
http://www.m-w.com/cgi-bin/dictionary?va=oocyte
|
|
|
