introduction: the mouse embryos can successfully be vitrified using ethylene glycol as cryoprotectant, however their development differs significantly from the non-vitrified embryos. the ability of their development can be improved when they co-culture with somatic cells. in the present study, the effects of co-culturing with vero cells on the development of vitrified two cell mouse embryos wer...

This study reports that common carp (Cyprinus carpio) embryos were successfully frozen and preserved by vitrification. The modified Haga solution was tested by using two different cryoprotectants and three different concentrations at 4°C to obtain appropriate vitrified solutions ((dimethylsulfoxide 5, 10, 15% (DMSO) and glycerol 5, 10, 15% (gly)) in the study.  The hatching rates of embryos exp...

cryopreservation and sexing of embryos are integrated into commercial embryo transfer technologies. to improve the effectiveness of vitrification of in vitro produced buffalo embryos, two experiments were conducted. the first evaluated the effect of exposure time (2 and 3 min) and developmental stage (morula and blastocysts) on the viability and development of vitrified buffalo embryos. morphol...

background: the present study has been carried out to investigate the effects of preovulatory stage gamma-irradiation of female mice in the absence or presence of vitamin e on numerical chromosome abnormalities in 8-cell embryos after mating with non-irradiated males. materials and methods: the 8-11 weeks adult female nmri mice were whole body irradiated at preovulatory stage (post pmsg injecti...

objective: to study the structure and distribution of microtubules in embryos derived from young, old and reconstructed oocytes. materials and methods: embryos obtained from old (50 embryos), young (50 embryos) and reconstructed oocytes (10 embryos) were studied by immunocytochemistry. the microtubule structures of the embryos were studied by using fluroscent microscopy with fitc-pi filter and ...

introduction: it is now generally accepted that vero cells provide beneficial effects on improving embryo quality in many animal species. the aim of this research was to determine the effect of vero cell co-culture on the development of vitrified 8-cell mouse embryos. material and methods: eight- cell mouse embryos were provided from superovulated female nmri mice and divided into treatment cas...

introduction: this study was designed to compare the effects of three vitrification procedures [conventional (c), open pulled straw (ops) and closed pulled straw (cps)] on morphological survival of two-cell mouse embryos and their subsequent development to hatched blastocysts. material and methods: two-cell mouse embryos were divided into four groups, control (194), ops (150), cps (155) and c (...

introduction: the incidence of chromosomal abnormalities was investigated in untransfered embryos reuslted from in vitro fertilization (ivf) or intracytoplasmic sperm injection (icsi) procedures. materials and methods: a total of 238 embryos of varying morphology between the pronucleated stage and 8-cells were analysed. the cytogenetic method of dyban was used for chromosome preparation. embryo...

introduction: this study was initiated to examine the effect of the ampullary and the isthmic primary cell cultures of human oviduct during long-term co-culture on two-cell mouse embryos. materials and methods: using a mechanical procedure, epithelial cells from ampullary (a) and isthmic (i) regions of the human oviduct were isolated and cultured in ham's f-10 with 10% fetal calf serum (fsc). t...