IGF1 plays an important role in bovine follicular growth, acquisition of oocyte competence
and embryo viability. Current data also indicate a critical role for IGF1 in both the ovarian …

Infertility affects an increasing number of couples and for many the treatment of choice is IVF.
However, the success rate remains relatively low, and, as typically two or more embryos are …

Insulin-like growth factor I (IGF-I) has been shown to increase the proportion of embryos
forming blastocysts and the number of inner cell mass cells in human and other mammalian …

We have previously demonstrated that there is a clear relationship between the time interval
between insemination and first cleavage in vitro and the development to the blastocyst stage …

The formation of a developmentally competent mammalian blastocyst requires the transition
from a unicellular state, the fertilized zygote, to a differentiated multicellular structure. In …

In the present study, correlations between the oocyte messenger RNA (mRNA) stockpile of
Cyclin B, insulin‐like growth factor I (IGF‐I), insulin‐like growth factor (IGF‐II), insulin‐like …

The objective was to determine if a single measurement of plasma insulin-like growth factor-
1 (IGF-1) could predict the number of viable embryos obtained from donors and the …

A novel system of in vitro culture termed the'glass oviduct'or'GO'culture system is described.
Mouse zygotes were cultured in pairs to the blastocyst stage in open-ended 1 microl glass …

The insulin-like growth factor (IGF) system is a complex network, including ligands (IGF-I and-
II), binding proteins (IGFBP-1 to-6), and receptors, of which the type I IGF receptor (IGF-IR) is …

The role of growth hormone (GH) in embryonic growth is controversial, yet preimplantation
embryos express GH, insulin-like growth factor I (IGF-I) and their receptors. In this study …