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These multiple follicles can be taken out by oocyte retrieval (egg collection) for use in in vitro fertilisation (IVF), or be given time to ovulate, resulting in superovulation which is the ovulation of a larger-than-normal number of eggs, [2] generally in the sense of at least two.
The underlying mechanism is that, with the GnRH antagonist protocol, initial follicular recruitment and selection is undertaken by endogenous endocrine factors prior to starting the exogenous hyperstimulation, resulting in a smaller number of growing follicles when compared with the standard long GnRH agonist protocol. [9]
Oocytes are then able to mature within the follicle through meiosis. In humans with ovaries, this process occurs continuously, as they are born with a finite number of follicles (between 500,000-1,000,000 follicles), and about 99% of follicles undergo atresia. [4] Only one follicle will be mature enough to release an egg and may be fertilized. [5]
In vitro fertilisation (IVF) is a process of fertilisation in which an egg is combined with sperm in vitro ("in glass"). The process involves monitoring and stimulating a woman's ovulatory process, then removing an ovum or ova (egg or eggs) from her ovaries and enabling a man's sperm to fertilise them in a culture medium in a laboratory.
Women starting at around age 42 to 45 are typically advised not to proceed with IVF with their own eggs because older eggs have a higher chance of abnormalities. Gene variant protects against ...
Hormonal imbalance is the most common cause of anovulation and is thought to account for about 70% of all cases. About half the women with hormonal imbalances do not produce enough follicles to ensure the development of an ovule, possibly due to poor hormonal secretions from the pituitary gland or the hypothalamus. The pituitary gland controls ...
Jeff Karp had just undergone his first full-body routine skin cancer check in the spring of 2022 and was about to walk out of the exam room, when, on a whim, the 47-year-old decided to ask his ...
A post on Instagram implies that because former First Lady Michelle Obama used In vitro fertilization (IVF) to get pregnant, that means she is actually transgender. Verdict: False