2 次ivf失败了,医生说可能是卵子quality不够好。。而且取出的卵子数量也很少,才5-6颗(别人通常都会取出10 ...
queeny80 发表于 21-9-2011 06:48 PM 
我上网帮你找了一些资料,希望帮到你!但我找不到华语的,只有英语的。卵子的品质对胚胎的细胞分裂扮演者重要角色!
What is Egg Quality?
Egg quality refers to how prepared your eggs are to develop into embryos once they are fertilized. In order to be healthy enough to develop, an egg needs to have the proper chromosomes (染色体) and the ability to combine those chromosomes with sperm. Some eggs in your body just don’t have the right number of chromosomes, making it impossible to have a successful pregnancy.
The eggs in your ovaries also need energy in order to split after fertilization. Your eggs contain mitochondria (线粒体)线粒体越多,肌肉可利用的能量就越大, which are tiny cell organelles that provide the energy for the egg. Without mitochondria, your egg wouldn’t have the energy to survive. As you age, these mitochondria produce less and less energy. As a result, any egg that is fertilized will eventually run out of energy and will be unable to divide.
What Causes Poor Egg Quality?
1)Egg quality is greatly affected by your age. In your 20s and early 30s, you should have a large number of good quality eggs available for fertilization. Yes, you will have a few bad eggs too, but the good ones should vastly outweigh them. However, as you age your eggs will begin to decline in quality as well as in number. By the time you are in your late 30s or early 40s, you will probably have more poor quality eggs available than good quality eggs.
2)Health problems or genetics. In particular, smoking, radiation therapy, and chemotherapy have been known to cause eggs to decline in health. If you suffer from endometriosis (子宫内膜异位,俗称血瘤), you may also find that your egg quality is poorer than you would like it to be.
Testing Egg Quality
Typical tests that evaluate your egg equality include: - Day 3 FSH Test: Measures your levels of FSH. Elevated levels may indicate poor egg quality. 促卵泡生长激素(FSH) :是垂体前叶嗜碱性细胞分泌的一种糖蛋白激素,其主要功能是卵巢的卵泡发育和成熟。我相信你已验过。
- Clomid Challenge Test (CCCT): The clomid challenge test is a blood test that also looks for FSH as Estradiol in your body. However, this test is more accurate and more in-depth.
Treatments for Poor Egg Quality
1) Using fertility drugs is one way to possibly increase the quantity and quality of your eggs. Typical female infertility drugs include clomiphene and bromocriptine. (可试看问医生有没有这个药物?)
2) In vitro fertilization(IVF) is another treatment option. However, if your eggs are of too poor quality, you may be encouraged to use an egg donor. (卵子捐赠,你的医生已经建议了) |