Why do older women have poor implantation rates? A possible role of the mitochondria

被引:67
作者
Bartmann, AK
Romao, GS
Ramos, ED
Ferriani, RA
机构
[1] Univ Sao Paulo, Sch Med Ribeirao Preto, Serv Human Reprod, Dept Obstet Gynecol, BR-14049 Ribeirao Preto, Brazil
[2] Univ Sao Paulo, Sch Med Ribeirao Preto, Dept Genet, BR-14049 Ribeirao Preto, Brazil
关键词
aneuploidy; mitochondria; older women; poor implantation;
D O I
10.1023/B:JARG.0000027018.02425.15
中图分类号
Q3 [遗传学];
学科分类号
071007 ; 090102 ;
摘要
Mitochondria are organelles responsible for oxidative phosphorylation, the main energy source for all eukaryotic cells. In oocytes and embryos, it seems that mitochondria provide sufficient energy for fecundation by supporting spindle formation during meiosis II, and for implantation. Since mitochondria are inherited from mother to child, it is important that oocyte mitochondria should be intact. Older women seem to have more mitochondrial DNA mutations, which can be responsible for poor implantation and aneuploidy, two conditions that occur more often in this group. In the present report we propose a new model to explain why older women have poor implantation rates.
引用
收藏
页码:79 / 83
页数:5
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