In her discussion of multiple births — nowadays, the arrival of twins, triplets or even quadruplets no longer startles, thanks in part to assisted reproduction — she presents meticulous evidence that twins, produced in almost half of in vitro pregnancies in the United States, face significant health risks.
Unemployed single mommies should not be giving birth to litters of half term, in vitro fertilized embryos.
The systemic clearance of the drug exceeds the glomerular filtration rate, and thus the drug is expected to have a similar half life in vitro as in vivo.
We find that mutations within either interface weaken heterodimerization of isolated half hinges in vitro but do not greatly compromise formation of cohesin rings in vivo.
Aquaporin 8 messenger RNA demonstrates a relatively short biologic half-life in vitro, which renders its rapid responsiveness to regulation (Am J Obstet Gynecol 2003 188 997-1001).
When compared with wild-type PTEN, the ATP-binding mutant PTEN has reduced half-life in vitro and decreased protein expression levels in vivo.
Individual genes not present in more than half of the in vitro time course studies or more than half of the in vivo studies were also removed.
Engineering of the IgG4 hinge region making it resemble that of an IgG1 is sufficient to dramatically reduce half molecule exchange in vitro and in vivo.
In Group 2, half of the in vitro fertilized oocytes were inserted on Day 1 and retrieved on Day 3 in order to compare embryo development.
There is growing independent evidence that more than half of human in vitro fertilization (IVF) embryos, which are the sources of cells used for the derivation of hESC lines, contain aneuploid cells, and mosaicism is a frequently occurring phenomenon during this preimplantation period (Barbash-Hazan et al., 2009; Mertzanidou et al., 2013a, 2013b; Vanneste et al., 2009; Wells and Delhanty, 2000).
