As highlighted by European statistics, the employment of donor oocytes is a growing option for women who cannot make use of their own gametes. As the potential recipients are continuously increasing in number, a donor ...

Fertilization in mammals requires the successful completion of a sequence of steps, starting with the transport of gametes in the reproductive tract and ending with sperm-egg membrane fusion to produce a zygote. Although ...

Two experiments were designed to evaluate the effect of a simulated transport of oocytes to be used in bovine embryo production. Cumulus-oocytes complex -COCs - (n=1586) obtained from slaughterhouse ovaries were submitted ...

4F2hc is an almost ubiquitous transmembrane protein in mammalian cells; upon expression in Xenopus laevis oocytes, it induces amino acid transport with characteristics of system y+L. Indirect evidence fostered speculation ...

We investigated whether supplementing the medium used to transport bovine oocytes with different macromolecules [foetal calf serum (FCS) or bovine serum albumin (BSA)] or a mixture of antioxidants (cysteine, cysteamine and ...

Ovaries of 86 buffaloes and 95 cows were collected from slaughterhouses and transported to the laboratory in saline solution at 36o C. The Cumulus-oocyte complexes (COCs) were recovered by follicular aspiration and only ...

Insect oocytes are surrounded by the follicular epithelium which is simple and cuboidal, wih the mainly functions of: synthesis of vitellin membrane and chorion and synthesis and transport of hemolymph products (proteins). ...

Insect oocytes are surrounded by the follicular epithelium which is simple and cuboidal, wih the mainly functions of: synthesis of vitellin membrane and chorion and synthesis and transport of hemolymph products (proteins). ...