Embryo cryopreservation represents a pivotal tool for the long-term storage and exchange of valuable genetic resources of livestock and endangered species. The innumerable applications of embryo cryopreservation in human medicine, animal production, as well as in other embryo biotechnologies for research purposes are calling for standardized protocols that can be used in these different fields....

Over the last 30 years the process of in vitro fertilisation (IVF) has evolved considerably, yet the efficiency of this treatment remains relatively poor. The principal challenge faced by doctors and embryologists is the identification of the embryo with the greatest potential for producing a child. Current methods of embryo viability assessment provide only a rough guide to potential. In order...

Context: Gestational diabetes is defined as carbohydrate intolerance with onset or first recognition during pregnancy. Diabetes during pregnancy increases the incidences of congenital anomalies, in a mother and her embryo. Oxidative stress has been implicated to be responsible in diabetic embryopathy. Objective: In this study, we used nanoceria as an antioxidant for amelioration of diabetic embry...

embryo culture were used to produce inter specific walnut hybrid plants between juglans nigra l. and j. regia l. developed ovaries were collected from j. rejia female flowers which were pollinated with j. nigra pollen grain by high dusting on a mature tree. in order to isolate embryos, exocarps were aseptically removed. isolated embryos from ovules at different developmental stages were transfe...

This short review attempts to describe several important aspects of research at the RIAP Nitra in the area of embryo manipulation with in vivo-derived or in vitro produced cattle embryos performed from the beginning of an embryo transfer era and up to date. The paper summarizes results of more important studies including: manipulations on embryos (embryo transfer, embryo bisection for creation ...

Chick embryos have been used as alternative experimental animals in various research fields, including virology, immunology, toxicology, oncology, and embryology. Until now, there have been no in vivo models using chick embryo to evaluate radiosensitizing activity. Here, the in vivo radiosensitizing activity of etanidazole, a well-known hypoxic cell radiosensitizer, was evaluated using tumor-be...

Lysophosphatidic acid (LPA) is a cell membrane phospholipid metabolite that can act as an extracellular signal. Its effects are mediated through at least five G protein-coupled receptors, LPA(1-5), and probably others as well. Studies in multiple species including LPAR-deficient mice and humans have identified or implicated important roles for receptor-mediated LPA signaling in multiple aspects...

In the last 10-20 years, new biotechnologies have been developed that are on the verge of revolutionizing reproductive processes in humans and animals. In agriculture, modern techniques in assisted reproductive technology (ART) are being used for the introduction, improvement, and preservation of livestock genetics and the enhancement of animal reproductive efficiency. Modern embryology and ART...

Animal models play a crucial role in basic and translational oncology research. Conventional rodent experiments, however, face ethical, practical and technical issues that limit their use. The chick embryo represents an accessible and economical in vivo model, which has long been used in developmental biology and for the study of angiogenesis. It is also a recognised xenograft model, and becaus...

Dairy industry perfected the application of the first reproductive biotechnology, i.e. artificial insemination (AI) a great success story and also remains the user of embryo transfer technology (ETT). In addition, recently the researchers taking interest to embraced the field of Transvaginal Oocyte Recovery (TVOR) and in vitro production (IVEP) of embryos. IVF provides the starting point for th...