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Individuals diagnosed with cancer who have not yet begun chemotherapy or radiotherapy can also benefit from oocyte cryopreservation. [4] Chemotherapy and radiotherapy are toxic to oocytes, reducing the number of viable eggs. In these cases, egg freezing may be used to preserve eggs. [5] [6] [clarification needed] [citation needed]
Transvaginal oocyte retrieval (TVOR), also referred to as oocyte retrieval (OCR), is a technique used in in vitro fertilization (IVF) in order to remove oocytes from an ovary, enabling fertilization outside the body. [1]
For decades, those hoping to become pregnant have turned to doctors to freeze their eggs in a process called oocyte cryopreservation with the intention of using their eggs at a later time. Though ...
Human fertilization is the union of an egg and sperm, occurring primarily in the ampulla of the fallopian tube. [1] The result of this union leads to the production of a fertilized egg called a zygote, initiating embryonic development. Scientists discovered the dynamics of human fertilization in the 19th century. [2]
At Memorial Sloan Kettering Cancer Center in NYC, ready for my second round of chemotherapy. I had only four glorious days with my bob before starting chemo.
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Staging breast cancer is the initial step to help physicians determine the most appropriate course of treatment. As of 2016, guidelines incorporated biologic factors, such as tumor grade, cellular proliferation rate, estrogen and progesterone receptor expression, human epidermal growth factor 2 (HER2) expression, and gene expression profiling into the staging system.
Egg donation is the process by which a woman donates eggs to enable another woman to conceive as part of an assisted reproduction treatment or for biomedical research. For assisted reproduction purposes, egg donation typically involves in vitro fertilization technology, with the eggs being fertilized in the laboratory; more rarely, unfertilized eggs may be frozen and stored for later use.